MXPA97004611A - Scissors ribeteadoras with gu - Google Patents

Abstract

The present invention is reifered to a manual tool with pivot, characterized in that it comprises: first and second opposite elongated members, each member having a blade at a front end thereof and a handle at an outer end thereof, each blade having a cutting edge a pivot connecting the elongated members for pivotal movement about it, the edges being engageable paired to the pivotal movement of the handles around the pivot, and a guide connected to the forward end of the first member, the guide including a separate lower plate a cover plate, the cover plate extending through a portion of the bottom plate to form a slot with the same

Description

RIBETER SCISSORS WITH GUIDES FIELD OF THE INVENTION The present invention relates generally to manual pivoting tools, such as scissors, which have guides for controlling the angular presentation of a piece of paper to the blades.

BACKGROUND OF THE INVENTION Pivotal hand tools, such as scissors, are widely used. For accuracy and convenience, certain scissors are commonly provided with a guide attached to one of the blades to allow a user to more precisely position the material to be cut with respect to the blades. An example of scissors having guidance is illustrated in U.S. Patent No. 384,710 issued July 19, 1888 Peters. Peters describes scissors to cut buttonholes. The scissors include an upper jaw having a cutting blade configured to an elongated slot in a piece of cloth, and a lower jaw to which an adjustable gauge is attached. Although relatively simple construction, adjusting the guide requires the user to stop cutting, loosen a bolt, slide the guide to another desired position, tighten the bolt and resume cutting.

Another example of scissors having guidance is illustrated in U.S. Patent No. 1,251,101, issued December 25, 1917 to Quigley. Quigley describes scissors with a guide to separate tape into portions at right angles to its length. The channel-shaped guide, which is secured to one of the blades to control the presentation of the belt to the blades, includes opposite flanges, which guide parallel and extend at right angles to the cutting line. Although the guide helps the user to cut straight lines, it is not adjustable to cut tape substantially smaller or larger than the width of the chandelier. Additionally, the guide is not provided with means to control the length of the tape to be cut. U.S. Patent No. 4,227,305 issued October 14, 1980 to Newman discloses scissors having a channel-shaped guide and a gauging gauge adapted primarily to cut hidden strips in order to provide a finished end at the end of the belt. Cutting the strip. The guide, which is fixed to one side of one of the blades, has a flat bottom surface limited by side flanges. The measuring gauge, which is secured to the other side of the same blade, includes a scale and a stop received slidingly in an elongated slot formed in the gauge. The user can align the stop with a graduation on the scale and then secure the stop in that position. Although the gauge is adjustable, the guide is not configured to cut pieces of a width other than the guide channel. In addition, the Neuman scissors include a number means + .e of components, thereby increasing the cost of such an item. End + .e, another example of scissors that includes a guide is illustrated in the United States patent design No. 368,418 issued April 2, 1996 to Aida. Aida scissors are designed to cut tapes. While, as discussed above, certain scissors according to the prior art are provided with guides of various configurations, the majority of these scissors do not allow the user to cut a corner portion of a sheet of paper or other material. As for the illustrated scissors In the Aida patent, it does not seem to include features that allow the user to adjust the amount of material that is being cut. Thus, it seems desirable to provide scissors that alleviate some of the drawbacks associated with conventional articles according to the prior art, but which are however designed so that they can be relatively inexpensive.

BRIEF DESCRIPTION OF THE INVENTION The present invention presents scissors or other manual tool with pivot configured to allow the user to cut different patterns on the corner of a sheet of paper or something similar. According to one aspect of the present inventionThe scissors comprise elongate members opposite first and second, each member having a blade with a handle disposed through a common pivot point. At least one of the members is provided with a guide configured to control the amount of paper or other material presented to the blades. In accordance with another aspect of the present invention, both members include a guide. Each guide, which is connected to the outer face of a respective member, includes a pair of splice surfaces forming an angle contained therebetween. According to a preferred embodiment of the present invention, the guides are formed integrally with the elongated members. Each guide also comprises a bottom plate from which the splice surface and a pair of flanges separated from the splice surface project. The guides are arranged oppositely oriented so that in combination with the symmetrical handles the user can create four different patterns on the sheet of paper simply by inverting the position in which the scissors are held. Other advantages of the present invention will become apparent from the detailed description given hereafter. It should be understood, however, that the detailed description and the specific embodiments are given by way of illustration only since, by the detailed description, various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art. .

BRIEF DESCRPTION OF THE DRAWINGS The preferred exemplary embodiment of this invention will be described hereinafter in conjunction with the accompanying drawings, in which like numerals denote like elements and: Figure 1 is a perspective view of a Trimming Scissors with Guides in accordance with the invention, shown in the closed position; Figure 2 is a top plan view of the edge scissors shown in Figure 1; Figure 3 is a perspective view of the scissors guide shown in Figure 1; Figure 4 is a perspective view of one of the non-rectilinear blades associated with the scissors of Figure 1; Figure 5 is a front side view of the scissors of Figure 1, shown in the open position; Figure 6 is a front side view of the scissors of Figure 1, shown in the closed position; Figure 7 is a sectional view of the scissors taken along line 7-7 shown in Figure 6; Figure 8 is a partial sectional view of the scissors turned along the line 8-8 shown in Figure 5, showing the blades about to cut a piece of paper supplied through the guide; Figure 9 is a partial sectional view of the scissors taken along line 8-8 shown in Figure 5, showing the blades having cut the paper sheet its instrada through the guide; Figure 10 is a top plan view of the scissors of Figure 1, the scissors being held in a first position and being shown with a piece of paper splicing against the splicing surfaces; Figure 11 is a partial top plan view of the paper sheet, illustrating a first edge that results from the cut formed when the paper is inserted into the guide with the scissors held by the user as shown in the figure ; Figure 12 is a partial top plan view of the scissors of Figure 1, the scissors being held in a first position and being shown with a piece of paper splicing against the ridges; Figure 13 shows a partial top plan view of the paper sheet, illustrating a second edge resulting from the cut formed when the paper is inserted into the guide with the scissors held by the user as shown in Figure 12; Figure 14 is a partial top plan view of the scissors of Figure 1, the scissors being held in a second position and being shown with a piece of paper which is spliced against the splicing surfaces; Figure 15 is a partial top plan view of the sheet of paper, illustrating a third edge that results from the cut formed when the paper is inserted into the guide with the scissors held by the user as shown in the figure. 14; Figure 16 is a partial top plan view of the scissors of Figure 1, the scissors being held in a second position and being shown with a piece of paper that butts against the ridges; and Figure 17 is a partial top plan view of the sheet of paper, illustrating a fourth edge that results from the cut formed when the paper is inserted into the guide with the scissors held by the user as shown in the figure. 16 DETAILED DESCRIPTION OF A PREFERRED EXEMPLARY MODALITY This invention relates to hand tools with pivot, such as scissors, which have guidance to assist the user in cutting a desired portion of a sheet of paper? another suitable material, and form a particular pattern on the edge that is being cut. Those skilled in the art, however, appreciate that the device described herein and its principle of operation is broadly applicable to a wide variety of pivot hand tools, and can be adapted to different scissor devices. Accordingly, although the present invention is described hereinafter with particular reference to scissors, the skilled worker will easily appreciate your many other uses. Referring to the figures, the scissors 10 according to the invention includes the first and second opposed elongated members 12 and 14, respectively, preferably made of moldable material such as plastic, joined for scissors action around a pivot joint 16. The member 12 comprises a first handle 18 at the rear end 20 and a first guide 22 at the front end 24. Similarly, the member 14 comprises a second handle 26 at the rear end 21 and a second guide 28 at the front end 25. The scissors 10 also include the blades 30 and 32 which are respectively fixed to the members 12 and 14. As shown more particularly in Figure 4, the blade 30 has a cutting edge that is non-rectilinear. Necessarily, the blade 32 which must be engaged in matching has a pattern that is complementary to that of the blade 30. Each member 12, 14 also includes a stop 34, 36, which is integrally molded therewith. The stops 34 and 36 limit the movement of the scissors member 12 and 14 after the handles 18 and 26 are closed together in the process of cutting a piece of paper 15. Referring more particularly to FIGS. 2-4. , the first guide 22 includes a lower plate 38 and a cover plate 40 having a tiera 42 which extends between a pair of 43 s substantially b triangular posts, fixed to the lower plate 38. The strip 42 forms? slot 44 between a portion of the lower plate 38 and the cover plate 40. The posts 43 include a pair of splice surfaces 46 extending from the lower plate 38 to the cover plate 40. Similar, as shown in FIG. Illus + a in Figures 14 and 16, the second guide 28 includes a lower plate 39 and a cover plate 41 having a strip 45 extending between a pair of substantially triangular posts 47 fixed to the lower plate 39. The strip 45 forms a slot 49 between a portion of the bottom plate 39 and the cover plate 41. The posts 47 include a pair of splice surfaces 51 extending from the bottom plate 39 to the cover plate 41. Referring to Figure 3, an angle α contained at the point of contact is formed. intersection of a pair of lines aligned with the splicing surface 46. The same angle to content is formed at the point of intersection of a pair of lines aligned with the splicing surfaces 51 on the second guide 28. The guides 22, 28 they include flanges 48, 53, respectively, advantageously formed integrally in pairs with lower plates 38, 39, respectively, and extending from the lower plate 38, 39 a spaced-apart distance. The flanges 48, 53 are spaced apart and substantially parallel to the splicing surfaces 46, 51. In this manner, a contained angle β formed at the point of intersection of a pair of lines aligned with the flanges 48, 53 is equal to the angle The content formed at the intersection point of the lines aligned with the splicing surfaces 46, 51. Since the flanges 48, 53 do not extend beyond the respective strips 42, 45, a user can guide the paper 15. on the flanges 48, 53 and through the slots 44, 49 until the paper 15 splices against the splicing surfaces 46, 51. The first guide 22 is connected to an outer face 50 of the member 12. The guide 22 is molded preferably intergrally with member 12. Similarly, second guide 28 is connected to an outer face 52 of member 14 with which it is preferably integrally molded. The guides 22 and 28 are preferably identical in structural aspect, but are oriented opposite one another when they are formed with the members 12 and 14. As illustrated in Figures 10 and 14, the first guide 22 has an upper surface 54 and a lower surface 57 while a second guide 28 has an upper surface 55 and a lower surface 56. Referring more particularly to FIGS., 8 and 9, the blades 30 and 32 are substantially L-shaped and include the first portions 58 fixed to the respective upper faces 60 of the members 12 and 14 and the second portions 62 which have sharp edges 64, 65 no docking rectilinear matching. As used herein, non-rectilinear edges 64, 65 include any edge that is not straight such as for example eyelet or wavy edges, or another edge that is not a straight line thereby allowing A user will create a decorative pattern. the decorative edge 64 of the blade 30 is complementary to the decorative edge 65 of the blade 32. As will be explained in more detail below, the patterns formed on the corner of the paper 15 will be different, depending on whether the user guides the paper 15. against the splice surfaces 46, 51 or the flanges 48, 53. Figures 11, 13, 15 and 17 show the patterns created on the paper 15 depending on whether the user uses the surfaces 46, 51, or the flanges 48, 53 , and depending on whether the paper 15 is inserted in the first guide 22 or the second guide 28. Specifically, when the paper 15 is inserted in the first guide 22 against the splicing surfaces 46, a first pattern 66 is formed (FIG. eleven); still holding the scissors 10 in the same position a second pattern 68 (figure 13) is created when the paper 15 is spliced against the ridges 48. To create two additional patterns, the paper 15 is inserted in a second guide 28 against the surfaces of splice 51 to form a third pa + rón 70 (figure 15) or against the rims 53 to form a fourth patron 72 (figure 17). Referring now to FIGS. 6 and 7, the handles 18 and 26 are substantially identical substs to allow the user to cut the paper 15 with any of the hands. The paper 15 is inserted in the first guide 22 and is closed when the user closes the handles 18 and 26 by activating the thumb of the user the handle 18 and by actuating the other four fingers of the user the handle 26. Since the handles 18 and 26 have the same configuration, the user can then cut another piece of paper 15 with the same hand using a second guide 28. This is achieved by simply median + e giving slight scissors, so that the thumb of the user now activates the handle 26 and the other four fingers of the user actuate the handle 18. The paper 15 is then inserted in the second guide 28 and cut when the user closes the handles 18 and 26. Expressed differently, since the handles 18 and 26 have Conveniently the same configuration and position are substantially identical to the guides 22 and 28 which are arranged in an opposite oriented orientation, the user is able to create complementary patterns on the paper 15 by reversing the position of the scissors 1 0. Further, in combination with the fact that the amount of paper 15 presented to the cutting edge 64, 65 ee can control two different positions by guiding the paper 15 against the splicing surfaces 46, 51 or the flanges 48. , 53, the user is able to create four different patterns 66, 68, 70, 72 on the corners of the paper 15. Figures 8 and 9 illustrate the blades 30 and 32 which cut the paper 15. With the scissors in the open position, a piece of paper is guided against the abutment surfaces 46 or ridges 48 through the slot 44 until the paper 15 extends at least past the blade 32. The user closes the handles 18 and 26 each other, thereby creating a decorated edge 33 on the paper 15 with the non-rectilinear blades 30 and 32. A separate piece of paper 16 falls from the scissors 10 in a downward direction indicated by the arrow in Figure 9. As mentioned above, the decorated edge 33 varies depending on whether the paper 15 is presented to the blades 30, 32 against the edges. splice surfaces 46 or the flanges 48 of the first guide 22 or against the splicing surfaces 51 or the flanges 53 of the second guide 28. The patterns created by using the symmetry of the handles 18, 26 and the oppositely oriented configuration of the guides 22, 28. In Figures 10 and 11, a paper corner 15 is guided against the splicing surfaces 46 of the guide 22 through the slot 44 and is cut by the blades 30 and 32. The non-rectilinear blades 30 and 32 for-man the first edge 66 on the paper length 15 presented to the blades 30 and 32, represented by di. Alternatively, as shown in FIGS. 12 and 13, the user can guide the paper 15 against the lips 48 of the guide 22 through the slot 44 instead of against the abutment surfaces 46 to create the second edge 68 with the edges. blades 30 and 32 not rectilinear. The length of paper 15 presented to the blades 30 and 32 against the ridges 48 is represented by d2 which is less than di. The second edge 68 having the length d2 is identical to a portion of the first edge 66 which has the length di. Similarmen + .e, referring to Figures 14-17, the user can flip the scissors 10 and guide a corner of the paper 15 against the splicing surfaces 51 of the guide 28 through the slot 49 and cut the paper 15 with the blades 30 and 32 non-rectilinear, thereby creating the third edge 70. The user can also guide the paper 15 against the edges 53 of the guide 28 through the slot 49 instead of against the splice surfaces 51 and cut the paper 15 with the blades 30 and 32 are not rectilinear to form the fourth edge 72. Again, the fourth edge 72 which also has the length of two is identical to a portion of the third edge 70 having a length di. Referring to Figures 11, 13, 15 and 17, the third edge 70 is the opposite of the first edge 66, and the fourth edge 72 is the opposite of the second edge 78. In other words, each projection 74, 76 and 78 of the third edge 70 has a corresponding cavity 80, 82 and 84 in the first edge 66. This is caused by the matching coupling of the complementary blades 30,32 and the decorated edges 64, 65, respectively. Therefore, each cavity 86 and 88 of the third edge 70 also has a corresponding projection 90 and 92 on the first edge 66. As illustrated in FIGS. 13 and 17, the second edge 68 is identical to a portion of the first edge. 66 and the fourth edge 72 is identical to a portion of the third edge 70, so that the projection 94 on the fourth edge 72 has corresponding na + 96 cavity on the second edge 68 and each cavity 98 and 100 of the fourth edge 72 it has a corresponding projection 102 and 104 on the second edge 68. As can be easily appreciated, opposing patterns 66, 70 and 68, 72 can be created with any pair of non-rectilinear blades. The pattern on one of the blades will necessarily be complementary to the pa + ron that is on the other blade so that the matching blades are coupled. This particular relationship allows the user to create four different patterns 66, 68, 70, 72 provided that the scissors 10 also include two identical guides 22, 28. It is to be understood that the above description is of a preferred exemplary embodiment of the invention and that the invention is not limited to the specific forms that are described. Those skilled in the art will appreciate that, for example, manual pivot and guide tools in accordance with the invention could comprise blades 30 and 32 with different non-rectilinear or linear edges. Additional rims can also be provided on the lower plates 38, 39 to guide the paper 15 and the guides 22 and 28 can be modified to remove the cover plates 40, 41. It is considered that modifications and other configurations are present, not However, within the scope of this invention. In this way, these and other substitutions, modofications, changes and omissions can be made in the design and arrangement of the elements, without deviating from the scope of the attached reivings.

Claims (29)

NOVELTY OF THE INVENTION CLAIMS

1. - A manual tool with pivot comprising: elongated opposite first and second members, each member having a blade at a front end thereof and a handle at a rear end thereof; A pivot that joins the elongated members for pivoting around it; and a guide connected to the forward end of the first member, the guideway including a lower plate separated from a cover plate, the cover plate extending through a portion of the lower plate to form a groove therewith.

2. The manual tool according to claim 1, further characterized in that the lower plate includes a pair of splice surfaces that form an angle contained between them.

3. The manual tool according to claim 2, further characterized in that the connecting surfaces extend from the lower plate to the cover plate.

4. The manual tool according to claim 2, further characterized in that the guide further includes a pair of flanges connected to the lower plate and spaced apart from the joining surfaces.

5. - The hand tool according to claim 4, further characterized in that the flanges extend from the bottom plate at a predetermined distance.

6. The manual tool according to claim 4, further characterized in that the rims are integrally formed with the lower plate.

7. The manual tool according to claim 1, further characterized in that the second elongated member includes a guide.

8. The manual tool according to claim 7, further characterized in that the guides are arranged oppositely oriented.

9. The manual tool according to claim 1, further characterized in that the guide is formed integrally with the first member.

10. The manual tool according to claim 1, further characterized in that the blades have non-rectilinear cutting edges that are coupled matching.

11. The manual tool according to claim 1, further characterized in that the handle of the first member is symmetrical to the handle of the second member.

12. The manual tool according to claim 7, further characterized in that the first guide is identical to the second guide.

13. A manual tool with pivot comprising: elongated opposite first and second members, + in each member a blade at the front end thereof and a handle at the rear end thereof; A pivot that connects the elongated members to its moving movement around the same; and a first guide connected to the front end of the first member and a second guide connected to the end of the n + .er of the second member, the first and second guides being oppositely oriented.

14. The manual tool according to claim 13, further characterized in that the knapsacks have non-rectilinear cutting edges which are coupled matching.

15. The manual tool according to claim 13, further characterized in that the first guide is formed integrally with the first member and the second guide is formed integrally with the second member.

16. The manual tool according to claim 13, further characterized in that at least one of the guides includes a lower plate having a pair of splice surfaces forming an angle contained therebetween.

17. The manual tool according to claim 16, further characterized in that the lower plate further includes a pair of flanges extending from the lower plate a predetermined distance.

18. The manual tool according to claim 17, further characterized in that the flanges are separated from, and substantially parallel to,, the splicing surfaces.

19. The manual tool according to claim 13, further characterized in that the handle of the first member is symmetrical to the handle of the second member.

20. The manual tool according to claim 13, further characterized in that the first guide is identical to the second guide.

21. A manual tool with a pivot comprising: first and second opposed elongated members, each member having a blade at a front end thereof and a handle at the rear end thereof, each front end including an outer face and a face Opposite oriented interior; a pivot that joins the elongated members for its movement in pivot around it; and a first guide connected to the outer face of the first member and a second guide connected to the outer face of the second member, the first guide being formed integrally with the first member and the second guide being integrally formed with the second member.

22. The manual tool according to claim 21, further characterized in that each guide influences a lower plate having a pair of splice surfaces projecting from the frame.

23. The manual tool according to claim 21, further characterized in that each blade is substantially L-shaped and includes the first and second portions, each first portion of the blade being fixed to a respective inner face and having the second ones. portions not cutting edges dockable matching.

24. The manual tool according to claim 21, further characterized in that the guides are arranged oriented opposite each other.

25. The manual tool according to claim 22, further characterized in that each guide further includes a pair of flanges connected to the lower plate and spaced apart from the splicing surfaces.

26. The manual tool according to claim 25, further characterized in that the flanges are integrally formed with the lower plate.

27. The manual tool according to claim 22, further characterized in that the first guide includes a strip that extends between a pair of posts connected to the lower plate of the first guide, close to the inner face of the first member.

28. The manual tool according to claim 21, further characterized in that the handle of the first member is symmetrical to the handle of the second member.

29. The manual tool according to claim 21, further characterized in that the first guide is identical to the guide sg,