RU2623955C2 - Smoking product - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: invention relates to a smoking product including the first cylindrical part made with the possibility to move relative to the second cylindrical part and having the first engagement surface, and the second cylindrical part having the second engagement surface, wherein the first engagement surface can engage with the second engagement surface to limit the relative longitudinal movement between the first and the second parts, and at least one of the first and the second engagement surfaces passes around the inner or the outer surface of the corresponding first or second cylindrical parts and follows the trajectory different from the circular and extending mainly in the tangential direction to the inner or outer surface of the corresponding cylindrical part.

EFFECT: providing the variable feeding of the smoking mixture.

19 cl, 23 dwg

Description

Technical field

The invention relates to a smoking article. In particular, the invention relates to a smoking article, the first part of which can be moved relative to the second part. The smoking article may be extendable.

State of the art

Sliding cigarettes are known in the art, for example, cigarettes in which a cigarette stick (tobacco rod) can slide inside a tube. The cigarette stick can, for example, be moved inside the tube to change the length of the cigarette and the size of the inner chamber.

Disclosure of invention

In accordance with embodiments of the invention, there is provided a smoking article comprising a first cylindrical part movable relative to a second cylindrical part and having a first engagement surface, and a second cylindrical part having a second engagement surface, wherein the first engagement surface may engage a second engagement surface to limit relative longitudinal movement between the first and second parts, and at least the first or second The engagement surface extends around at least part of the inner or outer surface of the corresponding first or second cylindrical parts and follows a path different from the circular one.

The indicated trajectory may extend mainly along the tangent (in the tangential direction) to the inner or outer surface of the corresponding cylindrical part. The path may extend at least partially along the length (longitudinal direction) of the corresponding cylindrical portion.

The shape of the first and (or) second engagement surface may be such that their radius does not remain constant around the circumference of the smoking article.

The first cylindrical part may have a first engaging part on which the first engagement surface is located, and the second cylindrical part may have a second engaging part on which the second engagement surface is located.

At least the first or second engaging parts may also have several teeth, and the corresponding first and (or) second engagement surface may have an end and / or side of several teeth. The sides of the teeth can be formed at an angle so that the teeth extend at an angle to the circumference of the smoking article. The teeth can have a generally square, rectangular, rhomboid, trapezoidal or triangular shape.

The first engaging portion may be formed on a sheet of material having a first region attached to the inner component of the smoking article. The first engagement surface may be spaced longitudinally (spaced apart) from the attached first region of the sheet of material.

The inner component may include a cigarette stick (tobacco rod) and a filter section, and a first region may connect the cigarette stick to the filter section.

The sheet of material may also have a second region attached to the inner component of the smoking article, with the first engagement surface extending in the longitudinal direction between the first and second regions.

Several teeth may have a generally triangular shape and extend at an angle radially outward from the internal component.

At least the first or second engagement surfaces may be formed by bending the workpiece from the material along at least one line of weakening of strength that does not extend in a straight line.

At least the first or second engagement surfaces can be formed by bending the workpiece from the material along the first and second weakening lines, while the first and second weakening lines do not extend in a straight line.

The first and second strength weakening lines each have a wavy shape.

Each of the first and second engagement surfaces may extend around at least a portion of the inner or outer surface of the corresponding first or second cylindrical parts and may follow a path different from a circular one.

In accordance with embodiments of the invention, there is also provided a smoking article comprising a first cylindrical part movable relative to a second cylindrical part and having a first engagement surface formed by a first sheet material and a second cylindrical part having a second engagement surface formed by a second sheet material, wherein the first engagement surface may engage with the second engagement surface to limit the relative longitudinal movement between the first and second parts, and at least the first or second engagement surface extends around at least a portion of the inner or outer surface of the respective first or second cylindrical parts and have a radial dimension greater than the single thickness of the corresponding first or second sheet material, forming at least a first or second engagement surface.

At least the first or second engagement surfaces can be formed by bending a workpiece of material along at least one bend.

In accordance with embodiments of the invention, there is also provided a blank of sheet material for use in forming at least a first or second engagement surface of a smoking article described above having several teeth formed therein, or at least one weakening line formed in the blank not passing in a straight line through the workpiece, with several teeth or at least one line of weakening of strength located so that when the workpiece is used to form the first or second engagement surfaces, the teeth or a line of weakening of strength form a surface extending around at least a portion of the inner or outer surface of the corresponding first or second cylindrical parts of the smoking article along a path different from a circular one.

Brief Description of the Drawings

Further, as specific examples, a description of embodiments of the invention is provided with reference to the attached drawings, in which:

in FIG. 1 is a perspective view of a sliding smoking article having a sleeve connected to the first filter section and a cigarette stick connected to the second filter section and having the ability to slide inside the sleeve;

in FIG. 2 is a sectional side view of the smoking article shown in FIG. 1, retracted;

in FIG. 3 is a sectional side view of the smoking article shown in FIG. 1, in the advanced state;

in FIG. 4 is a perspective sectional view of the sleeve of the smoking article shown in FIG. one;

in FIG. 5 (a) -5 (h) show plan views of blanks for forming wrappers connecting a cigarette stick to a filter section in a smoking article;

in FIG. 6 (a) -6 (e) show views in terms of blanks for forming a sleeve of a smoking article;

in FIG. 7 is a perspective view of a sliding smoking article formed using the wrapper blank shown in FIG. 5 (a), and the blank of the sleeve shown in FIG. 6 (a);

in FIG. 8 is a perspective view of a sliding smoking article formed using the wrapper blank of FIG. 5 (b), and the sleeve shown in FIG. four;

in FIG. 9 is a sectional side view of the smoking article shown in FIG. 8;

in FIG. 10 is a perspective view of a section of a smoking article formed using the wrapper blank of FIG. 5 (e), and the sleeve shown in FIG. four; and

in FIG. 11 is a perspective view of a sliding smoking article formed using the wrapper blank shown in FIG. 5 (g) and the blank of the sleeve shown in FIG. 6 (e). DETAILED DESCRIPTION OF THE INVENTION In the present description, the term “smoking article” encompasses smoking products, for example, cigarettes, cigars and cigarillos based on tobacco, tobacco derivatives, loosened tobacco, reconstituted (powder) tobacco or tobacco substitutes, as well as other non-combustible, tobacco or nicotine products that are heated without burning (i.e., products in which the aroma is obtained from a smoking material under the influence of heat, without using burning material).

As used herein, the term “component of a smoking article” includes any component of a smoking article, for example, a cigarette stick, filter, filter section or mouthpiece, or a combination thereof. One or more components of the smoking article are surrounded by a wrapper. A wrapper can perform one or more of the following functions: connecting two components, forming a support structure for one or more components, allowing one or more components to move relative to another part of the smoking article to control the property of the smoking article (e.g., ventilation), or any other function.

In FIG. 1-3, a sliding smoking article 10 is shown. The sliding smoking article 10 includes a first component 11 and a second component 12, wherein the first and second components can move relative to each other. In this example, the first component 11 comprises a rod of smoking material 13, in this case tobacco, wrapped in a wrapping material 14, such as cigarette paper. The first filter section 15 is wrapped in a first filter wrapper (not shown), although in the alternative, this section may not be wrapped. The first filter section 15 is connected to the cigarette stick 13 by the rim material 16, in this case, the rim paper. The second component 12 includes a cylinder-shaped sleeve 20. In this example, the second component 12 also includes a second filter section 21 wrapped in a second filter wrap 22. The second filtering section 21 is firmly fixed inside the sleeve 20, in this example, at the mouthpiece end of the smoking article 10. The first and / or second filtering sections 15, 21 can be made of a bundle of cellulose acetate fibers.

The sleeve 20 of the second component 12 spans the circumference of the first component 11. The dimensions of the cigarette stick 13 and the first filter section 15 of the first component 11 are selected so that they can slide longitudinally as a unit inside the sleeve 20. The cigarette stick 13 and the first filter section 15 can be named tobacco segment, or the internal component of a smoking article.

The rim paper 16 may be a relatively thick paper, for example with a weight of from 40 to 120 g / m ² , or, in some embodiments, from 60 to 100 g / m ² . The cigarette stick 13, the first filter section 15 and the rim paper 16 can be formed by analogy with a conventional cigarette. However, the length of the cigarette stick 13 in the present example delivers 48 mm, which is less than that of a cigarette stick of a conventional cigarette. In addition, the first and second filter sections 15, 21 may be harder than a conventional cigarette filter. In some embodiments, the smoking article 10 includes either a first filter section 15 or any other relatively solid substance at the end of the cigarette stick 13.

The distance that the first component 11 and the second component 12 can move relative to each other is limited, in at least one direction, by the first engagement surface 17 of the first component 11, which, in use, is engaged with the second engagement surface 23 of the second component 12.

In the present example, the sheet material 16 connecting the cigarette stick 13 and the first filter section 15 forms a first engagement surface 17 of the first component. The sheet material 16 has an end surface, in this example, an end farthest from the user's mouth, which forms the first engagement surface 17. The first engagement surface 17 extends radially outward from the source of smoking material 13, and faces axially from the mouthpiece end of the smoking article 10.

A chamber 24 is formed in the cartridge case 20, between the first filtering section 15 and the second filtering section 21. The chamber 24 changes its length, and hence the volume, when the first component 11 is shifted along the axis inside the cylindrical cartridge 20. The length of the chamber 24 varies from zero to a predetermined maximum value. The relative movement of the first and second components 11, 12, i.e., the sleeve 20 and the cigarette stick 13 in this example, beyond the maximum length is prevented by the first and second engaging surfaces 17, 23.

In FIG. 2 shows the smoking article 10 in the retracted state when the cigarette stick 13 and the first filter section 15 of the first component 11 are biased towards the second filter section 21 of the second component 12. The length of the chamber 24 has been reduced to zero. The smoking article 10 has a minimum overall length. The smoking article 10 can be returned to a retracted state after use when the cigarette stick 13 has been partially or completely burned.

In FIG. 3 shows a smoking article 10 in an extended state when the cigarette stick 13 and the first filter section 15 of the first component 11 are offset as far as possible from the second filter section 21 of the second component. The length of the chamber 24 has been increased to a maximum. The smoking article 10 has a maximum length, while the first engagement surface 17 of the first component 11 is engaged with the second engagement surface 23 of the second component 12 and restricts the axial movement of the first and second components 11, 12. In use, the smoking article 10 can be extended . The cigarette stick 13 and the first filter section 15 of the first component 11 can steplessly change their position within the sleeve 20 so as to occupy any partially extended position between the retracted and extended states.

In the above description, the cigarette stick 13 and the attached first filter section 15 of the first component are connected by a wrapping paper 16. The wrapping paper 16 may be a standard wrapping paper, or a relatively thick embossed wrapping paper, or binding paper. Alternatively, a pipe made of any material may attach a first filter section 15 to a source of smoking material 13. In particular, such a tube may be made of a plastic material, for example, corn starch plastic. In another case, the tube may be made of ceramic material. In another embodiment, the tube may be formed of foil, metal or metallized paper. In other examples, the first component 11 does not include a filter section 15, and the first engagement surface 17 is formed by a wrapper or other material that does not serve to connect the cigarette stick 13 and the first filter section 15.

In FIG. 4 is a perspective sectional view of the sleeve 20. The sleeve 20 has a first end 25, in this example farthest from the mouthpiece end of the smoking article that surrounds the cigarette stick 13 in the assembled state. The sleeve 20 has a second end 26 at the mouthpiece end of the smoking article in this example, for introducing the second filter section 21 into it and forming the mouthpiece end of the smoking article 10.

The sleeve 20 may be formed from sheet material and, in particular, paper material. In particular, the sleeve 20 may be formed of relatively thick paper and / or several layers of paper or other wrapping material, for example, paper with a weight of from 40 to 120 g / m ² , or, in some embodiments, from 60 to 100 g / m ² formed in one or more layers.

At the first end 25 of the sleeve 20, the engaging portion 27 extends radially inward. The engaging portion 27 is formed by folding inwardly the sleeve material at the first end 25 to form an overlay. In particular, the engaging portion 27 is formed by bending the sleeve material 20 radially inward so that the folded sheet material abuts the inner surface of the sleeve 20. The engaging portion 27 can be folded about 180 degrees.

The second engagement surface 23 of the second component 12 is formed on the engaging portion 27. The second engagement surface 23 is a surface extending radially inward from the cylindrical sleeve 20 and axially facing the second end 26 of the sleeve 20. The second engagement surface 23 is located inside the cylindrical sleeve 20.

In FIG. 5 (a) -5 (h) show the corresponding blanks from material related to various embodiments prepared to form internal wrappers from them, corresponding to the wrapper 16 of the first component 11 of the smoking article 10 (or another wrapper forming the first engagement surface 17). Each of the material blanks will be formed into a cylinder around the internal component (s) of the first component 11 of the smoking article 10. The internal components may include a cigarette stick 13 and the first filter section 15, or any other component of the smoking article. In this example, the internal component (s) comprises a cigarette stick 13 longitudinally aligned with the first filter section 15, and the inner wrappers are used to connect the cigarette stick 13 and the first filter section 15.

In FIG. 6 (a) -6 (e) shows the respective blanks of material related to various embodiments prepared to form liners 20 corresponding to the sleeve 20 of the second component 12 of the smoking article 10. Each of the blanks from the material is formed into a cylinder around the second filter section 21 and at least part of the first component 11 of the smoking article 10.

In FIG. 5 (a) is a plan view of a blank of material 150 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The preform 150 has a first end 151, which in this example is the farthest end from the user's mouth during use, and which surrounds the cigarette stick 13 in the assembled state. The blank 150 has a second end 152, at the end closest to the user's mouth during use, which surrounds the first filter section 15 in an assembled state. Adhesive 153 may be applied to a portion of a preform of material 150 extending, in this example, above the area at the second end 152 of the preform, so that the inner wrapper can be glued to the inner components of the first component 11 to connect the cigarette stick 13 and the first filter section using inner wrapper.

At the first end 151 of the workpiece 150, there is no adhesive on the engaging portion 154. When used to form the inner wrapper, such as, for example, the inner wrapper 16 shown in FIG. 1-3, the engaging portion does not adhere to the first component 11. Several teeth 155 are formed on the engaging portion 154. In this example, the teeth 155 are generally triangular in shape, in particular isosceles triangles. The lateral edges 156a, 156b of the triangular teeth 155 at the first end 151 of the workpiece 150 form a first engagement surface when the workpiece 150 is formed into a cylinder. Edges 156 are directed at an angle to a line running across the workpiece of material 150 so that the sum of the lengths of the edges and, therefore, the first engagement surface is greater than the transverse width of the workpiece 150. In the longitudinal direction, the edges 156 extend from the first end 151 of the workpiece 150. Longitudinal edges 156 is less than the length of the engaging portion 154, therefore, the support section 158 of the engaging portion 154 remains as a support for several teeth 155.

The tips 157 of the teeth 155 can be distanced from the surface of the cigarette stick 13 when an inner wrapper is formed from the workpiece of material 150, for example, the inner wrapper 16 shown in FIG. 1-3. The edges 156a, 156b of the teeth 155 extend from the bearing section 158 of the engaging portion 154 to the tips 157 of the teeth 155. In some examples, the first engagement surface formed by the edges 156 therefore extends at an angle radially outside of the cigarette stick 13. The radial dimension of the first engagement surface is increased compared to the radial dimension of the engagement surface 17 of the inner wrapper 16 shown in FIG. 1-3, to the engaging portion radially outward from the internal components of the first component 11 of the smoking article 10. When the preform 150 is formed around the cylindrical first component 11, the engagement surface formed by the lateral edges 156 of the triangular teeth 155 extends around the outer surface of the first component 11, while following a non-circular path. In this case, this trajectory extends at least partially along the length of the first component 11, so that the length of the engagement surface can be increased compared to the engagement surface 17 of the inner wrapper 16 of FIG. 1-3.

In FIG. 6 (a) is a plan view of a blank of material 160 for forming into a sleeve corresponding to the sleeve 20 of the smoking article 10 shown in FIG. 1-3. The blank 160 is adapted to form a cylinder from it around the second filter section 21. The blank of material 160 has a first end 161 that is farthest from the user's mouth and, after assembly, surrounds the first component 11. The blank 160 has a second end 162 forming the mouthpiece of the smoking articles 10 in the present example, which, after assembly, surrounds the second filtering section 21. On the part of the workpiece 160, passing, in this example, longitudinally along one edge of the workpiece 160, adhesive 163 can be applied that performs the function th of the overhead seam when forming a cylinder of sheet material forming a sleeve corresponding to the sleeve 20.

When the sleeve is assembled from the blank 160, at the end of the sleeve corresponding to the first end 25 of the sleeve 20 in FIG. 1-4, a bend line 169 is formed extending across the workpiece 160. The bent section forms an engaging portion 164 extending between the bend line 169 and the first end

161 of the workpiece 160. The engaging portion 164 is radially folded inwardly into the sleeve 20. In the present example, the engaging portion 164 is folded about 180 degrees.

Several teeth 165 are formed on the engaging portion 164 of the workpiece 160. In this example, the teeth 165 have a generally triangular shape, in particular an isosceles triangle. The lateral edges 116a, 116b of the triangular teeth 165 at the first end 161 of the workpiece 160 form, in the present embodiment, a second engagement surface when the workpiece 160 is formed into a cylinder, which corresponds to the second engagement surface 23 of the sleeve 20. The edges 166 are directed at an angle to the line passing across the workpiece of material 160. In the longitudinal direction, the edges 166 extend from the first end 161 of the workpiece 160. The longitudinal extent of the edges 166 is less than the length of the engaging part 164, therefore, as a support for several teeth 155 can be about Tavlya bearing section 168 of the engaging portion 164.

The tips 167 of the teeth 165 may be spaced from the inner surface of the sleeve when the sleeve, for example sleeve 20, shown in FIG. 1-4, is formed from the workpiece 160. The edges 166 of the teeth 165 extend from the bearing section 168 to the tips of the 167 teeth 165. In some examples, the second engagement surface formed by the edges 166 therefore extends at an angle, in radius, from the inside of the sleeve 20. The radial dimension of the second engagement surface can therefore be increased in comparison with the sleeve 20 in FIG. 1-4, on the engaging part extending radially inward from the inner surface of the sleeve. When the workpiece 160 is formed into the sleeve 20 of the cylindrical second component 12, the engagement surface formed by the lateral edges 166 of the triangular teeth 165 extends around the inner surface of the second component 12 and follows a path different from the circular one. In this case, this trajectory extends at least partially along the length of the second component 12, due to which the length of the engaging surface may increase as compared with the engaging surface 23 of the sleeve 20 in FIG. 1-3.

In FIG. 7 is a perspective view of a sliding smoking article 170. In this example, the first component 171 of the smoking article 170 includes a cigarette stick 173 wrapped in cigarette paper 174 and a first filter section 175. The first filter section 175 is wrapped with a blank of material 150, as described with with reference to FIG. 5 (a) forming an inner wrapper corresponding to the inner wrapper 16 in FIG. 1 but having a different first engagement surface. The preform 150 is glued to the first filter section 175 and the cigarette stick 173 so that the cigarette stick 173 is connected to the first filter section 175 of the material blank 150. The first end 151 of the blank 150 is the end farthest from the mouthpiece end of the smoking article 170. The engaging portion 154 is not glued to the cigarette stick 173 and forms several triangular teeth 155, mainly as described with reference to FIG. 5 (a).

The second component 172 of the smoking article 170 includes a second filter section 181. The second filter section 181 is wrapped with a blank of material 160, as described with reference to FIG. 6 (a) forming the outer sleeve corresponding to the outer sleeve 20 of FIG. 1, although having another second engagement surface. The first end 161 of the sleeve 160, which is farthest from the user's mouth, is formed by folding 169 in the blank of material 160. The engaging portion 164 is radially bent inward of the sleeve 160 and forms several triangular teeth 165, essentially as described with reference to FIG. 6 (a).

The edges 156 of the triangular teeth 155 of the inner wrapper 150 forming the first engagement surface of the first component 171 are adapted to engage with the edges 166 of the triangular teeth 165 of the outer sleeve 160 forming the second engagement surface of the second component 172. The first and second engagement surfaces are engaged so that prevents the relative movement of the first and second components 171, 172 beyond the maximum length.

The first engagement surface extends radially outward from the outer surface of the cigarette stick 173 to the tips of the 157 teeth 156. The second engagement surface extends radially inward from the inside of the sleeve 160 to the tips of the 167 teeth 166. The radial dimension of the first and second engagement surfaces is increased so that fixation is improved the first component 171 relative to the second component 172. In this case, the first and second components 171, 172 are more securely connected to each other.

In FIG. 7 shows an inner wrapper similar to that described with reference to FIG. 5 (a), in combination with a sleeve similar to that described with reference to FIG. 6 (a). Alternatively, an inner wrapper similar to that described with reference to FIG. 5 (a) may be used in combination with any other embodiment shown in FIG. 6 (a) -6 (e) (as described in more detail below), or, in particular, with a sleeve 20, for example, a sleeve described with reference to FIG. 1-4. A sleeve similar to that described with reference to FIG. 6 (a) may be used in combination with any other embodiment shown in FIG. 5 (a) -5 (h), or in particular with an inner wrapper 16 similar to that described with reference to FIG. 1-3.

In FIG. 5 (b) is a plan view of another blank of material 250 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The preform 250 has a first end 251, in the present example, the end farthest from the user's mouth and surrounding the cigarette stick 13 in the assembled state. The blank 250 has a second end 252, from the side closest to the mouth of the user in this example, which surrounds the first filter section 15 in an assembled state. Adhesive 253 is applied to a portion of the material preform 250, extending, in this example, above the region at the second end 252 of the preform, so that the inner wrap is adhered to the internal components of the first component 11, whereby the cigarette stick 13 is connected to the first filter section 15 of the inner wrap.

At the first end 251 of the workpiece 250, the engaging portion 254 is free of adhesive, similar to the engaging portion 154 described previously with reference to FIG. 5 (a).

The engaging portion 254 has several slots formed at the first end 251, which form several teeth 255. In the present example, the teeth 255 are generally diamond-shaped. The side edges of 256 teeth at the first end 251 of the workpiece 250 extend at an angle to the end edges 257 of the teeth 255. The side edges 256 extend in the longitudinal direction from the first end 251 of the workpiece 250. The longitudinal length of the side edges 256 is less than the length of the engaging part 254, therefore, as a support for several teeth 255 remains the carrier section 258 of the engaging portion 254.

The end edges 257 of the teeth 255 form the first engagement surface when the workpiece 250 is formed into a cylinder, which corresponds to the first engagement surface 17 of the inner wrapper 16 described with reference to FIG. 1-3. The end edges 257 of the teeth 255 may extend away from the surface of the cigarette stick 13 when an inner wrapper is formed from a workpiece of material 250. The lateral edges 256 of the teeth 255 extend from the bearing section 258 of the engaging portion 254 to the end edges 257 of the teeth 255. In some examples, the first engagement surface formed by the end edges 257 extends at an angle radially outward from the cigarette stick 13. As a result, the radial size the first engagement surface is increased due to its radially extending away from the internal components of the first component 11 of the smoking article 10. When the workpiece 250 is formed around the cylindrical first component 11, the engagement surface The formation formed by the end edges 257 of the teeth 255 passes around the outer surface of the first component 11 and follows a path different from the circular one. In this case, this trajectory runs mainly along the tangent to the outer surface of the first component 11, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability, in comparison with the engagement surface 17 of the inner wrapper 16 in FIG. 1-3. The radial dimension of the engagement surface formed by the end edges 257 of the teeth 255 is also greater than the single thickness of the sheet material forming the preform 250.

In FIG. 6 (b) is a plan view of a preform of material 260 prepared for forming into a sleeve in accordance with the sleeve 20 of the smoking article 10 shown in FIG. 1-3. The billet of material 260 has a first end 261 that is farthest from the user's mouth and surrounds the first component 11 in the assembled state. The preform 260 has a second end 262, forming, in this example, the mouthpiece end of the smoking article 10 and surrounding the second filter section 21 in the assembled state. On the part of the workpiece 260, longitudinally extending, in this example, along one edge of the workpiece 260, an adhesive is applied, acting as a connecting seam, holding a cylinder of sheet material to form a sleeve corresponding to the sleeve 20.

A fold line 269 runs across the preform 260, which, in use, forms the first end of the sleeve corresponding to the first end 25 of the sleeve 20 in FIG. 1-4. The bent section forms an engaging portion 264 extending between the bend line 269 and the first end 261 of the workpiece 260. The engaging portion 264 is bent radially inward to the sleeve, in the assembled state. In the present example, the engaging portion 264 is folded about 180 degrees.

Several teeth 265 are formed on the engaging portion 264 of the workpiece 260. In this example, the teeth 265 are generally diamond-shaped and correspond to the teeth 255 of the workpiece 250 shown in FIG. 5 (b). The side edges 266 of the teeth at the first end 261 of the workpiece 260 extend at an angle to the end edges 267 of the teeth 265. The side edges 266 extend in the longitudinal direction from the first end 261 of the workpiece 260. The longitudinal length of the side edges 266 is less than the length of the engaging portion 264, therefore, as a support for several teeth 265 remains the carrier section 268 of the engaging portion 264.

The end edges 267 of the teeth 265 form a second engagement surface when the workpiece 260 is formed into a cylinder, which corresponds to the second engagement surface 23 of the sleeve 20. The end edges 267 of the teeth 265 may extend from the inner surface of the formed sleeve. In the present embodiment, the second engagement surface formed by the end edges 267 may extend at an angle radially inward from the inner surface of the assembled sleeve, increasing the radial size of the second engagement surface as compared to the sleeve 20. When the workpiece 260 is formed into a cylindrical second component 12 , the engagement surface formed by the end edges 267 of the teeth 265 extends around the inner surface of the second component 12 and may follow a path different from the circular one. In this case, this trajectory extends, at least partially, in a direction parallel to the tangent to the inner surface of the second component 12, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability in comparison with the engagement surface 23 of the sleeve 20 in FIG. 1-3. The radial dimension of the engagement surface formed by the end edges 267 of the teeth 265 is also greater than the single thickness of the sheet material forming the preform 260.

In FIG. 8 is a perspective view of a sliding smoking article 270, substantially similar to the smoking article 170 described with reference to FIG. 7. The first component 271 of the smoking article 270 includes a cigarette stick 273 wrapped in cigarette paper 274 and a first filter section 275. The first component 271 is wrapped in a blank of material 250, as described with reference to FIG. 5 (b). The blank 250 forms an inner wrapper corresponding to the inner wrapper 16 in FIG. 1. The preform 250 is glued to the first filter section 275 and the cigarette stick 273 so that the cigarette stick 273 is attached to the first filter section 275 with a blank of material 250. The first end 251 of the blank 250 is the end farthest from the mouth end of the smoking article 270. The engaging portion 254 is not adhered to the cigarette stick 273 and forms several diamond-shaped teeth 255, mainly as described with reference to FIG. 5 (b).

The second component 272 of the smoking article 270 includes a second filter section 281. The second filter section 281 is wrapped with a blank of material forming an outer sleeve 280 corresponding to the outer sleeve 20 described with reference to FIG. 4. The first end 285 of the sleeve 280, which is the end farthest from the mouth of the user, is formed by a fold line 289 in the blank of material. The engaging portion 287 is bent radially inward to the sleeve 280. A second engagement surface 283 of the second component 272 is formed on the engaging portion 287. The second engagement surface 283 extends radially inside the cylindrical sleeve 280 and is axially facing the second end 272 of the smoking article 270.

The end edges 257 of the teeth 255 of the inner wrapper 250 forming the first engagement surface of the first component 271 are adapted to engage with the second engagement surface 283 of the second component 272. The first and second engagement surfaces 257, 283 are engaged so that the relative movement of the first and second components 271, 272 beyond the maximum length.

The first engagement surface 257 extends radially outward from the outer surface of the cigarette stick 273 to the ends 257 of the teeth 256. The second engagement surface 283 extends radially inward from the inner surface of the sleeve 280. The radial dimension of the first engagement surface 257 is increased, thereby improving the fixation of the first component 271 relative to the second component 272. In this case, the first and second components 271, 272 are more securely connected to each other.

In FIG. 8 illustrates an example in which an inner wrapper similar to that described with reference to FIG. 5 (b), and a sleeve 20 similar to that described with reference to FIG. 1-4. Alternatively, an inner wrapper similar to that described with reference to FIG. 5 (b) can be used in combination with other sleeves, for example, with any other embodiment of the sleeve blank shown in FIG. 6 (a) -6 (e).

In FIG. 5 (c) is a plan view of a blank of material 350 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The blank 350 has a first end 351, in this case, the end that is farthest from the user's mouth and surrounds the cigarette stick 13 in the assembled state. The blank 350 has a second end, from the side, in this case closest to the mouth of the user, which surrounds the first filter section 15, in the assembled state. Adhesive 353 is applied to a portion of the material blank 350 extending in this example over the area at the second end 352 of the blank so that the inner wrap is glued to the internal components of the first component 11, so that in this case the cigarette stick 13 can be connected to the first filter section 15 inner wrapper.

At the first end 351 of the workpiece 350, the engaging portion 354 is free of adhesive, similar to the engaging portion 154 previously described with reference to FIG. 5 (a).

The engaging portion 354 has several slots formed therein that form several teeth 355. In the present example, the teeth 355 are generally trapezoidal. The lateral edges 356 of the teeth 355 at the first end 351 of the workpiece 350 extend at an angle to the end edges 357 of the teeth 355. The angles at which the first and second lateral edges 356a and 356b of each tooth 355 extend are equal to each other and have the opposite sign with respect to the end edges 357 so that the first group of alternately arranged teeth 355a has an inverted orientation with respect to the second group of alternately arranged teeth 355b. The first end edges 357a of the first group of teeth 355a are longer than the second end edges 357b of the second group of teeth 355b. The lateral edges 356a, 356b extend longitudinally from the first end 351 of the workpiece 350. The longitudinal extent of the lateral edges 356a, 356b is less than the length of the engaging portion 354 so that a bearing section 358 of the engaging portion can be left as support for several teeth 355a, 355b. 364.

The first and second end edges 357a and 357b of the teeth 355a, 355b form the first engagement surface when the workpiece 350 is formed into a cylinder corresponding to the first engagement surface 17 of the inner wrapper 16. The first and second end edges 357a and 357b of the first and second groups of teeth may extend from the surface cigarette sticks 13, when an inner wrapper 16 is formed from a blank of material 350. The first and second side edges 356a and 356b of the teeth 355a and 355b extend from the carrier section 358 of the engaging portion 354 to the first and second end edges 357a and 357b teeth 355a and 355b. In some examples, the first engagement surface formed by the end edges 357a and 357b extends at an angle radially outward from the cigarette stick 13. The radial dimension of the first engagement surface is increased compared to the first engagement surface of the inner wrapper 16, due to its departure in the radial direction outward from the internal components of the first component 11 of the smoking article 10. When the workpiece 350 is formed around the cylindrical first component 11, the engagement surface formed by the end edges 357 teeth 355, passes around the outer surface of the first component 11 and follows a path different from circular. In this case, this trajectory passes mainly along the tangent to the outer surface of the first component 11, in particular, relative to the alternately arranged first edges 357a, due to which it is possible to increase the radial size of the engagement surface and, due to this, its adhesion in comparison with the surface 17 the engagement of the inner wrapper 16 in FIG. 1-3. The radial dimension of the engagement surface formed by the end edges 357 of the teeth 355 is also greater than the single thickness of the sheet material forming the preform 350.

In FIG. 6 (b) is a plan view of a blank of material 360 prepared for forming into a liner, in accordance with the liner 20 of the second component of the smoking article 10. The blank 360 is adapted to form a cylinder around the second filter section 21. The blank of 360 material has a first the end 361, the farthest from the user's mouth, and the surrounding first component 11, in the assembled state. The blank 360 has a second end 362, forming, in this example, the mouthpiece end of the smoking article 10 and surrounding the second filter section 21, in the assembled state. On the part of the workpiece 360, longitudinally extending, in this example, along one edge of the workpiece 360, adhesive 363 is applied, acting as a connecting seam, fastening a cylinder of sheet material to form a sleeve corresponding to the sleeve 20.

The first end of the sleeve 20 is formed by a crease line 369 extending across the workpiece 360, which will circle around the sleeve 20 in the assembled state. The bent section forms an engaging portion 364 extending between the fold line 369 and the first end 361 of the workpiece 360. The engaging portion 364 is bent radially inward to the sleeve 20. In the present example, the engaging portion 364 is bent approximately 180 degrees.

The engaging portion 364 of the workpiece 360 has several slots that form several teeth 365. In the present example, the teeth 365 have a generally trapezoidal shape. The lateral edges 366 of the teeth 365 at the first end 361 of the workpiece 360 extend at an angle to the end edges 367 of the teeth 365. The angles at which the first and second side edges 366a and 366b of each tooth 365 are equal to each other and have opposite sign relative to the end edges 367 so that the first group of alternately arranged teeth 365a has an inverted orientation with respect to the second group of alternately arranged teeth 365b. The first end edges 367a of the first group of teeth 365a are longer than the second end edges 367b of the second group of teeth 365b. The lateral edges 366a, 366b extend longitudinally from the first end 361 of the workpiece 360. The longitudinal extent of the lateral edges 366a, 366b is less than the length of the engaging portion 364 so that a bearing section 368 of the engaging portion can be left as support for several teeth 365a, 365b. 364.

The first and second end edges 367a and 367b of the teeth 365a, 365b form the first engagement surface when the workpiece 350 is formed into a cylinder corresponding to the first engagement surface 17 of the inner wrapper 16. The first and second end edges 367a and 367b of the first and second groups of teeth 365a, 365b may depart from the inner surface of the formed sleeve 20. The first and second side edges 366a and 366b of the teeth 365a and 365b extend from the carrier section 368 to the first and second end edges 367a and 367b of the teeth 365a and 365b. In some examples, the second engagement surface formed by the end edges 367a and 367b extends at an angle radially inward from the inner surface of the sleeve 20. The radial dimension of the second engagement surface is increased compared to, for example, the second engagement surface of the sleeve 20 shown in FIG. 1-4, due to its departure in the radial direction inward from the inner surface of the sleeve. When the workpiece 360 is formed into a cylindrical second component 12, the engagement surface formed by the first and second end edges 367a, 367b of the teeth 365 extends around the inner surface of the second component 12 and may follow a path different from a circular one, in particular with respect to the alternately arranged first end edges 367a. In this case, this trajectory extends at least partially in a direction parallel to the tangent to the inner surface of the second component 12, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability, in comparison with the engagement surface 23 of the sleeve in FIG. . 1-3. The radial dimension of the engagement surface formed by the end edges 367a, 367b of the teeth 365a, 365b is also larger than the single thickness of the sheet material forming the preform 360.

In FIG. 5 (d) is a plan view of a blank of material 450 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10. The blank 450 is adapted to form a first component 11 around the inner components 11. The blank 450 has a first end 451, in this case, the end that is farthest from the user's mouth and surrounds the cigarette stick 13, in the assembled state. The blank 450 has a second end 452, from the side, in this case closest to the mouth of the user who surrounds the first filter section 15, in the assembled state. Adhesive 453 is applied to a portion of the preform 450, in this example extending over the area at the second end 452 of the preform, so that the inner wrap is glued to the inner components of the first component 11, so that in this case the cigarette stick 13 can be connected to the first filter section 15 inner wrapper.

At the first end 451 of the workpiece 450, the engaging portion 454 is free of adhesive, similar to the engaging portion 154 previously described with reference to FIG. 5 (a).

In the engaging portion 454 there are several slots forming several teeth 455. In this example, the teeth 455 are generally rectangular in shape. The lateral edges 456 of the teeth at the first end 451 of the workpiece 450 extend at right angles to the end edges 457 of the teeth 455. The lateral edges 456 extend in the longitudinal direction from the first end 451. The longitudinal length of the lateral edges 456 is less than the length of the engaging portion 454, therefore, as a support for several teeth 455 may be left the bearing section 458 of the engaging portion 454.

The end edges 457 of the teeth 455 form the first engagement surface when the preform 450 is formed into a cylinder corresponding to the first engagement surface 17 of the inner wrapper 16. The end edges 457 of the teeth 455 can extend from the surface of the cigarette stick 13 when the inner wrapper 16 is formed from the blank of material 450. The lateral edges 456 of the teeth 455 extend from the bearing section 458 of the engaging portion 454 to the end edges 457 of the teeth 455. In some examples, the first engagement surface formed by the end edges 457 extends under the radius radially outward from the cigarette stick 13. The radial dimension of the first engagement surface is increased due to its radially extending outward from the internal components of the first component 11 of the smoking article 10. When the workpiece 450 is formed around the cylindrical first component 11, the engagement surface formed by the end edges 457 teeth 455, passes around the outer surface of the first component 11 and follows a path different from circular. In this case, this trajectory runs mainly along the tangent to the outer surface of the first component 11, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability, in comparison with the engagement surface 17 of the inner wrapper 16 in FIG. 1-3. The radial dimension of the engagement surface formed by the end edges 457 of the teeth 455 is also greater than the single thickness of the sheet material forming the preform 450.

In FIG. 6 (d) is a plan view of a blank of material 460 prepared for forming into a sleeve corresponding to the sleeve 20 of the second component of the smoking article 10 shown in FIG. 1-3. The blank 460 is adapted to be formed into a cylinder around the second filter section 21. The blank of material 460 has a first end 461 that is farthest from the user's mouth and surrounds the first component 11 in an assembled state. The blank 460 has a second end 462, forming, in this example, the mouthpiece end of the smoking article 10 and surrounding the second filter section 21, in the assembled state. On the part of the workpiece 460, longitudinally extending, in this example, along one edge of the workpiece 460, adhesive 463 is applied, acting as a connecting seam, fastening a cylinder of sheet material to form a sleeve corresponding to the sleeve 20.

The first end of the sleeve is formed by a fold line 469 extending across the workpiece 460, which will circle around the sleeve 20 in the assembled state. The bent section forms an engaging portion 464 extending between the bend line 469 and the first end 461 of the workpiece 460. The engaging portion 464 is bent radially inward to the sleeve 20. In the present example, the engaging portion 464 is bent about 180 degrees.

Several teeth 465 are formed on the engaging portion 464 of the workpiece 460. In the present example, the teeth 465 are generally rectangular in shape. The lateral edges 466 of the teeth at the first end 461 of the workpiece 460 extend at right angles to the end edges 467 of the teeth 465. The lateral edges 466 extend in the longitudinal direction from the first end 461. The longitudinal length of the lateral edges 466 is less than the length of the engaging portion 464, so that the supporting section 468 of the engaging portion 464 may be left as a support for several teeth 465.

The end edges 467 of the teeth 465 form the first engagement surface when the workpiece 460 is formed into a cylinder corresponding to the first engagement surface 17 of the inner wrapper 16. The end edges 467 of the teeth 465 may extend from the inner surface of the formed sleeve 20. The lateral edges 466 of the teeth 465 extend from the supporting section 468 to the end edges 467 of the teeth 465. In some examples, the second engagement surface formed by the end edges 467 extends at an angle radially inward from the inner surface of the sleeve 20. Radial spacing p of the second engagement surface is increased due to its radial extension inward from the inner surface of the sleeve 20. When the workpiece 460 is formed into a cylindrical second component 12, the engagement surface formed by the end edges 467 of the teeth 465 extends around the inner surface of the second component 12 and can follow a path different from a circular one. In this case, this trajectory extends at least partially in a direction parallel to the tangent to the inner surface of the second component 12, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability in comparison with the engagement surface 23 of the sleeve 20 in FIG. . 1-3. The radial dimension of the engagement surface formed by the end edges 467 of the teeth 465 is also greater than the single thickness of the sheet material forming the blank 460.

In FIG. 5 (e) is a plan view of a blank of material 550 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The preform 550 has a first end 551, in this case, the end that is farthest from the user's mouth and surrounds the cigarette stick 13, in the assembled state. The blank 550 has a second end 552, from the side, in this case, closest to the mouth of the user who surrounds the first filter section 15, in the assembled state. Adhesive 553 is applied to a portion of the preform 550. In this example, the first area of adhesive 553a extends along the second end 552 of the preform 550 so that the inner wrap is glued to the first filter section 15 of the first component 11. The second area of the adhesive 553b extends along the first end 551 of the preform 550 so that the inner wrapper is glued to the cigarette stick 13 of the first component 11.

There is no adhesive between the first adhesive 553a and the second adhesive 553b on the engaging portion 554. When the engaging portion 554 is used to form the inner wrapper 16 of the first component 11 of the smoking article 10 shown in FIG. 1-3, the engaging portion 554 is not adhered to the internal components of the first component 11. In the engaging portion 554, slots are formed to form several teeth 555. In the present example, the teeth 555 are generally triangular in shape. The end edges 556 of the teeth 555 have an edge part 557 extending across the workpiece 550 parallel to the first end 551, which forms the first engagement surface when the workpiece 550 is formed into a cylinder, and corresponds to the first engagement surface 17 of the inner wrapper 16. The transverse parts 557 of the edge of the teeth 555 may move away from the surface of the cigarette stick 13 when an inner wrapper 16 is formed from the material blank 550. The lateral edges 556 of the teeth 555 extend from the engaging part 554 to the transverse parts 557 of the edges of the teeth 555.

The first engagement surface formed by the transverse parts 557 of the edge can extend at an angle radially outward from the cigarette stick 13. The radial size of the first engagement surface is increased due to its radially extending inward from the internal components of the first component 11 of the smoking article 10. Code blank 550 is formed around the cylindrical first component 11, the engagement surface formed by the transverse portions 557 of the edge of the teeth 555 extends around the outer surface of the first component 11 and eduet path different from circular. In the present case, this trajectory runs mainly tangent to the outer surface of the first component 11, due to which it is possible to increase the radial size of the engagement surface and, therefore, its adhesion ability, in comparison with the engagement surface 17 of the inner wrapper 16 in FIG. 1-3. The radial dimension of the engagement surface formed by the end edges 557 of the teeth 555 is also greater than the single thickness of the sheet material forming the preform 250.

In FIG. 9 is a side elevational view of a portion of a sliding smoking article 570. FIG. 10 is a perspective view of this sliding smoking article 570. In this example, the first component 571 of the smoking article 570 includes a cigarette stick 573 wrapped with cigarette paper 574 and a first filter section 575. The first filter section 575 is wrapped with a blank of material 550, as described with reference to FIG. 5 (d). An inner wrap 576 is formed from the preform 550 corresponding to the inner wrap 16 shown in FIG. 1. The inner wrapper 576 is glued to the first filter section 575 and the cigarette stick 573 so that the cigarette stick 573 is connected to the first filter section 575 of the inner wrapper 576. The first end 551 of the inner wrapper 576 is the end farthest from the mouth end of the smoking article 570. Engaging the portion 554 is not glued to the first component 571 and forms several triangular teeth 555, as has generally been described with reference to FIG. 5 (d).

The second component 572 of the smoking article 570 includes a second filter section 581. The second filter section 581 is wrapped with a material blank forming an outer sleeve 580 corresponding to the outer sleeve 20 described with reference to FIG. 4. The first end 585 of the sleeve 580, which is the end farthest from the mouth of the user, is formed by a fold 589 in the workpiece. The engaging portion 587 is radially folded inwardly of the sleeve 580. A second engaging surface 583 of the second component 572 is formed of the engaging portion 587. The second engaging surface 583 is the surface that extends radially inward from the cylindrical sleeve 580 and faces axially toward the second end 572 of the smoking article 570.

The transverse parts 557 of the edge of the teeth 555 of the inner wrapper 576 forming the first engagement surface of the first component 571 are adapted to engage with the second engagement surface 583 of the second component 572. The first and second surfaces 577, 583 are engaged so that the relative movement of the first and second components is prevented 571, 572 beyond the maximum length.

The first engagement surface 577 extends radially outward from the outer surface of the cigarette stick 573 to the tips of the teeth 555. The second engagement surface 583 extends radially inward from the inner surface of the sleeve 580. The radial dimension of the first engagement surface 577 increases so that the fixation of the first component 571 is improved the second component 572. In this case, the first and second components 571, 572 are more securely connected to each other.

In FIG. 9 and 10 show an example of using an inner wrapper similar to that described with reference to FIG. 5 (e), in combination with a sleeve 20 similar to that described with reference to FIG. 1-4. Alternatively, an inner wrapper similar to that described with reference to FIG. 5 (e) can be used in combination with any other embodiment of the wrapper blank shown in FIG. 6 (a) -6 (e).

In FIG. 5 (e) is a plan view of a blank of material 650 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The blank 650 has a first end 651, in this case, the end that is farthest from the user's mouth and surrounds the cigarette stick 13, in the assembled state. The blank 650 has a second end 652, from the side, in this case, closest to the mouth of the user who surrounds the first filter section 15, in the assembled state. Adhesive 653 is applied to a part of the material blank 650 passing, in this example, along the second end 652 of the blank, so that the inner wrap is glued to the internal components of the first component 11, in particular so that the cigarette stick 13 is connected to the first filter section 15 by inner wrapper.

At the first end 651 of the workpiece 650, there is no adhesive on the engaging portion 654, by analogy with the engaging portion 154 previously described with reference to FIG. 5 (a).

The first engaging portion 654a and the second engaging portion 654b are formed by a fold line 657 extending across the workpiece 650. In use, the first engaging portion 654a is folded onto the second engaging portion 654b along the fold line 657, and becomes the first engaging portion corresponding to the first engagement surface 17 of the inner wrappers 16. The first engaging portion 654a, in this example, bends radially outward from the inner wrapper, although in the alternative, it may be bent radially inward. In the present example, the second engaging portion 654b is folded about 180 degrees.

The fold line 657 in the engaging portion 654 departs from the surface of the cigarette stick 13 when an inner wrapper 16 is formed from the blank of material 650. The bent first engaging portion 654a increases the thickness of the engaging portion 654. The radial dimension of the first engagement surface increases due to an increase in the thickness of the engaging portion 654. moving radially outward from the internal components of the first component 11 of the smoking article 10. When the workpiece 650 is formed around the cylindrical first component 11, the engagement surface, with formed by the edge 657 extends around the outer surface of the first component 11, and its radial size is greater than the single thickness of the sheet material forming the preform 650.

In FIG. 6 (e) is a plan view of a blank of material 660 prepared for forming into a sleeve corresponding to the sleeve 20 of the smoking article 10 shown in FIG. 1-3. The blank 660 is adapted to be formed into a cylinder around the second filter section 21. The blank of material 660 has a first end 661 that is farthest from the user's mouth and surrounds the first component 11 in an assembled state. The blank 660 has a second end 662, forming, in this example, the mouthpiece end of the smoking article 10 and surrounding the second filter section 21 in the assembled state. On the part of the workpiece 660, longitudinally extending, in this example, along one edge of the workpiece 660, adhesive 663 is applied, acting as a connecting seam, holding a cylinder of sheet material to form a sleeve corresponding to the sleeve 20.

The first end of the sleeve is formed by a fold line 669 extending across the blank 660, which will be circumferentially around the sleeve 20 in the assembled state. The bent section forms an engaging portion 664 extending between the bend line 669 and the first end 661 of the workpiece 660. The engaging portion 664 is bent radially inward to the sleeve 20. In the present example, the engaging portion 664 is bent twice, each time by approximately 180 degrees.

The first engaging portion 664a and the second engaging portion 664b are separated by a second fold line 669b extending generally parallel to the first fold line 669a. The second engaging portion 664b first bends to the first engaging portion 664a along the second bend line 669b along the radius inside the sleeve formed therewith, after which the workpiece 660 bends along the first bend line 669a, again along the radius inside the sleeve formed therewith. The second line 669b in the engaging portion 664 forms a second engagement surface 667 when the preform 660 is formed into a cylinder, which corresponds to the second engagement surface 23 of the sleeve 20.

The second fold line 669b during formation may be spaced from the inner surface of the sleeve. The bent second engaging portion 664b increases the thickness of the engaging portion 664. The radial dimension of the second engagement surface is increased by increasing the thickness of the engaging portion 664, and extends radially inward from the inner surface of the sleeve. When the preform 660 is formed into a cylindrical second component 12, the engagement surface formed by the edge 667 extends around the inner surface of the second component 12 and its radial size is greater than the single thickness of the sheet material forming the preform 650.

In FIG. 5 (g) is a plan view of a blank of material 750 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 shown in FIG. 1-3. The blank 750 has a first end 751, in this case, the end that is farthest from the user's mouth and surrounds the cigarette stick 13, in the assembled state. The blank 750 has a second end 752, from the side, in this case, closest to the mouth of the user who surrounds the first filter section 15, in the assembled state. Adhesive 753 is applied to a part of the material blank 750, passing, in this example, along the second end 752 of the blank, so that the inner wrapper is glued to the inner components of the first component 11. In some embodiments, the inner wrapper is glued to the cigarette stick 13 and the first filter section 15 so that the cigarette stick 13 is connected to the first filter section 15 by means of an inner wrapper.

At the first end 751 of the workpiece 750, no adhesive is present on the engaging portion 754, by analogy with the engaging portion 154 described previously with reference to FIG. 5 (a).

The engaging portion 754 has a first and second nonlinear weakening line 757a, 757b extending across the workpiece 750 and separating the first and second regions of the engaging portion 754a, 754b. In the present example, the first and second weakening lines 757a, 757b extend across the workpiece, having a generally wavy shape. The first weakening line 757a is a mirror image of the second weakening line 757b such that several regions 755 having a generally elliptical shape are formed between the first and second lines 757a, 757b. The first and second weakening lines 757a, 757b are formed in the present example as folds in the workpiece 750, although they can also be formed in another way, for example, by creasing, burning, stamping, punching or partial cutting of the workpiece 750.

In use, the first region 754a of the engaging portion is folded around the second region 754b of the engaging portion. The first area 754a of the engaging portion bends radially outward from the inner wrapper, although in the alternative, it may bend radially inward. In the present example, the first area 754a of the engaging portion is folded about 180 degrees. Areas 755 form a first engagement surface when the preform 750 is formed into a cylinder, which corresponds to a first engagement surface 17 of the inner wrapper 16.

The regions 755 extend from the surface of the cigarette stick 13 when an inner wrapper 16 is formed from the blank of material 750. In the present example, the first engagement surface formed by the regions 755 extends radially outward from the cigarette stick 13. The radial dimension of the first engagement surface is increased thereby that it extends radially outward from the internal components of the first component 11 of the smoking article 10, in comparison with the first engagement surface 17 of the inner wrapper 16 described with reference to FIG. 1-3.

In other embodiments, regions 755 may have any other general configuration as a result of forming in a blank of material 750. For example, regions 755 may have a generally rectangular, trapezoidal, or triangular shape.

In FIG. 6 (e) is a plan view of a blank of material 760 prepared for forming into a sleeve corresponding to the sleeve 20 of the smoking article 10 shown in FIG. 1-3. The preform of material 760 has a first end 761 that is farthest from the user's mouth and surrounds the first component 11 in an assembled state. The blank 760 has a second end 762, forming, in this example, the mouthpiece end of the smoking article 10 and surrounding the second filter section 21, in the assembled state. On the part of the workpiece 760, longitudinally extending, in this example, along one edge of the workpiece 760, adhesive 763 is applied, acting as a connecting seam, holding a cylinder of sheet material to form a sleeve.

The engaging portion 764 has a first and second non-linear strength weakening line 767a, 767b extending across the workpiece 760 and separating the first and second regions 764a, 764b of the engaging portion. In the present example, the first and second weakening lines 767a, 767b extend across the workpiece, having a generally wavy shape. The first weakening line 767a is a mirror image of the second weakening line 767b so that several regions 765 having a generally elliptical shape are formed between the first and second lines 767a, 767b. The first and second weakening lines 767a, 767b are formed in the present example as folds in the workpiece 760, although they can be formed in another way, for example, by creasing, burning, stamping, punching or partial cutting of the workpiece 750.

In use, the first region 764a of the engaging portion is folded around the second region 764b of the engaging portion. The first area 764a of the engaging portion bends radially inward from the sleeve. In the present example, the first area 764a of the engaging portion is folded about 180 degrees. Regions 765 form a first engagement surface when the preform 760 is formed into a cylinder, which corresponds to a first engagement surface 17 of the inner wrapper 16.

Regions 765 extend from the inner surface of the liner when formed from a blank of material 760. In the present example, the second engagement surface formed by the regions 765 protrudes radially inward from the inner surface of the liner. The radial dimension of the second engagement surface is increased due to the fact that it extends radially inward from the inner surface of the smoking article 10, in comparison with the first engagement surface 23 of the sleeve 20 described with reference to FIG. 1-3.

In other embodiments, regions 765 may have any other general configuration as a result of forming in a preform of material 760. For example, regions 765 may have a generally rectangular, trapezoidal, or triangular shape.

In FIG. 11 is a perspective view of a sliding smoking article 770 for which an inner wrapper blank 750 is used, described with reference to FIG. 5 (g), in combination with the sleeve blank 760 described with reference to FIG. 6 (e). In this example, the first component 771 of the smoking article 770 includes a cigarette stick 773 wrapped in cigarette paper 774 and a first filter section 775. The first filter section 775 is wrapped with a blank of material 750, in general, as described with reference to FIG. 5 (g). The blank 750 forms an inner wrapper corresponding to the inner wrapper 16 in FIG. 1. The blank 750 is glued to the first filter section 775 and the cigarette stick 773 so that the cigarette stick 773 is connected to the first filter section by a blank of material 750. The engaging portion 754 is the farthest end from the mouthpiece of the smoking article 770, not glued to the cigarette stick 773 and forms several regions 755, in general, as described with reference to FIG. 5 (g).

The second component 772 of the smoking article 770 includes a second filter section 781 wrapped in a filter wrap 782 and a blank of material 760, substantially similar to that described with reference to FIG. 6 (e). The blank 760 forms an outer sleeve corresponding to the outer sleeve 20 shown in FIG. 1. The first end 761 of the blank 760, the farthest end from the user's mouth, is formed by a fold line 769 in the blank of material 760. The engaging portion 764 bends radially inward to the sleeve 780 and forms several regions 765, generally similar to those described with reference to FIG. 6 (e).

The regions 755 of the inner wrapper 750 forming the first engagement surface 783 of the first component 771 are adapted to engage with the regions 765 of the outer sleeve 760 on which the second engagement surface 784 of the second component 772 is formed. The first and second engagement surfaces 783, 784 are engaged so that the relative movement of the first and second components 771, 772 beyond the maximum length is prevented.

The first engagement surface 783 extends radially outward from the outer surface of the cigarette stick 773. The second engagement surface 784 extends radially inward from the inner surface of the sleeve 760. The radial dimension of the first and second engagement surfaces 783, 784 is increased so that the mutual fixation between the first component 771 is improved. and the second component 772. This provides a more reliable connection with each other of the first and second components 771, 772.

In FIG. 11 shows an example of the use of the inner wrapper blank 750 described with reference to FIG. 5 (g), in combination with the sleeve blank 760 described with reference to FIG. 6 (e). Alternatively, the inner wrap blank 750 described with reference to FIG. 5 (g) may be used in combination with any other embodiment shown in FIG. 6 (a) -6 (e), or in particular with a sleeve 20, as described with reference to FIG. 1-4. The sleeve blank 760 described with reference to FIG. 6 (e) may be used in combination with any other embodiment shown in FIG. 5 (a) -5 (h), or in particular with an inner wrap 16, as described with reference to FIG. 1-4.

In FIG. 5 (h) is a plan view of a blank of material 850 for forming an inner wrapper corresponding to the inner wrapper 16 of the smoking article 10 in FIG. 1-3.

The workpiece 850 has a first end 851, in this example, the end farthest from the user's mouth and surrounding the cigarette stick 13, in the assembled state. The blank 850 has a second end 852, in this example, the end closest to the user's mouth and surrounding the first filter section 15 in an assembled state.

The preform 850 is adapted to form a cylinder therefrom around the internal components of the first component 11. However, in the present example, the preform 850 has a length corresponding to the double circumference of the cigarette stick 13 and the first filter section 15 of the first component 11. The first half 850a of the preform 850 comprises a first portion 853a with an adhesive that, in use, is wrapped around the outer surface of the cigarette stick 13 and the first filter 15, and adheres the cigarette stick 13 to the first filter 15. The second half of the zab 850b The lug 850 contains a second part 853b with an adhesive on the second end 852, which is also coated with adhesive and which, in use, is glued over the first half 850a of the workpiece 850. The second half 850b of the workpiece 850 also includes an engaging part 854 on the first end 851 of the workpiece 850, without adhesive applied to it, by analogy with the engaging parts described previously.

The edge of the workpiece 850 at the first end 851, during use facing the opposite side of the user’s mouth, forms the first engagement surface 857 when the workpiece 850 is formed into a cylinder corresponding to the first engagement surface 17 of the inner wrapper 16. The first adhesive part 853a adhered to the cigarette stick 13, and around which the engaging portion 854 is wrapped, increases the radial dimension of the first engagement surface 857, which extends radially outward from the internal components of the first smoking component 11 articles 10. When the preform 850 is formed around the cylindrical first component 11, the engagement surface 857 extends around the outer surface of the first component 11 and has a radial dimension greater than the single thickness of the sheet material forming the preform 850. In this case, by adding the thickness of the adhesive portion 853a, the radial dimension of the engagement surface is greater than the double thickness of the sheet material forming the blank 850.

Particular embodiments of the invention have been described above, but the invention is not limited to these options only. For example, in alternative embodiments, the teeth described herein may have a different profile that could be formed in the blanks from the material. For example, the teeth can be formed in the form of triangles, the shape of which differs from isosceles triangles, for example, equilateral or acute-angled triangles. In some embodiments, the edges of each tooth may extend asymmetrically with respect to a line crossing across the respective workpiece in which they are formed. In some examples, the angles at which the first and second edges of each tooth extend can be the same and have the opposite sign. Alternatively, the teeth may be rectangular, trapezoidal, or have edges with a concave or convex curvature. The cogs described herein may be formed by cutting or cutting through a workpiece from the material in which they are formed. A prepared material blank may have strength-reduction lines formed by scoring, stamping, and perforation, which form the lateral edges of the teeth. To facilitate the separation of the teeth from the internal components of the first component 11 or from the surface of the second component 12, bending or embossing of the workpiece in which they are formed is additionally used.

The embodiments described above include a second filter section 13 at the second end 27b of the sleeve 20. Alternatively, the sleeve 20 may not have a second filter section 13. Alternatively, the second filter section 13 may be replaced by a dye trap. The smoking article 10 may not have a first filter section 12. The embodiments described above can have at least one filter section attached to the source of smoking material 11 or to the second end 27b of the sleeve 20, or to both of these elements simultaneously. Alternatively, the smoking article 10 may not include any filter section.

One or more of the first and second filter sections 12, 13 may be formed from one segment of the filter material or several segments. A filter section formed from several segments may include segments made of different materials, or having different filtering properties. In particular, the filter section may include a standard segment of cellulose acetate tow and another segment of activated carbon containing filter material. Alternatively, the filter section may be a single segment containing activated carbon.

In the first or second of the filter sections 12, 13, or in both filter sections 12, 13, one or more additional or flavoring substances can be present at the same time (where their use is permitted by local legislation). In particular, the second filter section 13 may contain only activated carbon, and the first filter section 12 may not contain it. In another embodiment, the first filter section 12 may contain only activated carbon, but may not be in the second filter section. In another embodiment, the sheet material surrounding the cigarette stick 11, the first or second filter sections 12, 13, may contain tobacco.

To consider various aspects of the claimed invention and its presentation, the present description shows, by particular examples of various embodiments, the possibility of realizing the invention (s) and creating high-quality filters, methods for manufacturing filters, smoking articles and devices for manufacturing filters. The advantages and features described in the description relate to the options for implementation and are not exhaustive and (or) exclusive. They are presented only to improve understanding and clarification of the claimed features. It should be borne in mind that the advantages, embodiments, examples, functions, features, designs and (or) other features of the invention should not be construed as limiting the invention defined by the claims or equivalents of the claims, and that within the scope of the claims and (or) beings Other embodiments and modifications may be used. Various embodiments may, respectively, comprise, consist of, or mainly consist of various combinations of the disclosed elements, components, features, parts, steps, means, etc. In addition, the invention includes other inventions not claimed here, but which may be claimed in the future.

Claims (26)

1. A smoking article, including: a first cylindrical part movable relative to the second cylindrical part and having a first engagement surface, and a second cylindrical part having a second engagement surface, wherein the first engagement surface may engage with the second engagement surface to limit relative longitudinal movement between the first and second parts ; and at least one of the first and second engagement surfaces extends around the inner or outer surface of the corresponding first or second cylindrical parts and follows a path different from a circular one and extending mainly in a tangential direction to the inner or outer surface of the corresponding cylindrical part. 2. The smoking article of claim 1, wherein said path extends at least partially along the length of the corresponding cylindrical portion. 3. A smoking article according to claim 1, wherein the first and (or) second engagement surfaces are made with a variable radius around the circumference of the smoking article. 4. The smoking article of claim 1, wherein the first cylindrical part has a first engaging part on which the first engagement surface is located, and the second cylindrical part has a second engaging part on which the second engagement surface is located. 5. A smoking article according to claim 4, in which at least one of the first and second engaging parts has several teeth, and the corresponding first and (or) second engagement surface comprises an end and (or) a side of several teeth. 6. The smoking article of claim 5, wherein the sides of the teeth are angled so that the teeth extend at an angle to the circumference of the smoking article. 7. A smoking article according to claim 5, in which the teeth are generally square, rectangular, diamond-shaped, trapezoidal or triangular in shape. 8. The smoking article of claim 5, wherein the first engaging portion is formed on a sheet of material having a first region attached to the inner component of the smoking article. 9. The smoking article of claim 8, wherein the first engagement surface is spaced longitudinally from the attached first region of the sheet of material. 10. The smoking article of claim 8, wherein the inner component includes a cigarette stick and a filter section, and a first region connects the cigarette stick to the filter section. 11. The smoking article of claim 8, wherein the sheet of material has a second region attached to the inner component of the smoking article, wherein the first engagement surface is located in the longitudinal direction between the first and second regions. 12. A smoking article according to claim 11, in which several teeth have a generally triangular shape and extend at an angle radially outward from the internal component. 13. The smoking article of claim 1, wherein at least one of the first and second engagement surfaces is formed by bending the material preform along at least one weakening strength line that extends not in a straight line. 14. The smoking article of claim 13, wherein at least one of the first and second engagement surfaces is formed by bending the material blank along the first and second weakening lines, the first and second weakening lines not being in a straight line. 15. The smoking article of claim 14, wherein both the first and second strength weakening lines have a wavy shape. 16. The smoking article of claim 1, wherein each of the first and second engagement surfaces extends around an inner or outer surface of the corresponding first or second cylindrical parts and follows a path different from a circular one. 17. A smoking article, including: a first cylindrical part movable relative to the second cylindrical part and having a first engagement surface formed by the first sheet material, and a second cylindrical part having a second engagement surface formed by the second sheet material, wherein the first engagement surface may engage with the second engagement surface , to limit the relative longitudinal movement between the first and second parts, and at least one of the first and second engagement surfaces extends around the inner or outer surface of the corresponding first or second cylindrical parts, has a radial dimension greater than the single thickness of the corresponding first or second sheet material forming at least one of the first and second engagement surfaces, and follows a trajectory extending mainly in a tangential direction to the inner or outer surface of the corresponding cylindrical part. 18. The smoking article of claim 17, wherein at least one of the first and second engagement surfaces is formed by folding the material blank along at least one fold. 19. A blank of sheet material for use in forming at least one of the first and second engagement surfaces of the smoking article according to any one of paragraphs. 1-16, having: several teeth formed in the workpiece; or at least one line of weakening of strength, formed in the workpiece, not passing in a straight line through the workpiece, and several teeth or at least one weakening line are arranged such that when the preform is used to form one of the first or second engagement surface, the teeth or the weakening line form a surface extending around the inner or outer surface of the corresponding first or second cylindrical portion of the smoking article and the following trajectory, which differs from the circular one, passing mainly in the tangential direction to the inner or outer surface of the corresponding part-cylindrical.

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