CN106626879A - Pen suitable for rollerball pen refills in multiple specifications - Google Patents

Abstract

The invention discloses a pen suitable for rollerball pen refills in multiple specifications. The pen includes a pen tube and a hollow pen head which is detachably connected with the pen tube, and the pen head is internally provided with a locating structure matched with the rollerball pen refills of multiple structures; the pen tube is provided with an elastic locating piece matched with the tail of portions of the rollerball pen refills of the multiple structures; the locating structure is concentrically provided with a first opening and a second opening in sequence from the tip to the tail end of the pen head; the first opening is matched with a writing portion of a refill head in size and used for exposing the writing portion of the refill head out of the pen head; the second opening is larger than the first opening, and the second opening and the first opening form a stair so as to locate the writing portion of the refill head. The pen is simple in structure, convenient to manufacture, low in cost, and suitable for various pen refills different in pen refill head type, length and thickness, waste of pens is thus reduced, resources are saved, and environment protection is achieved.

Description

A pen tool suitable for multi-standard gel pen refills

technical field

The invention relates to the field of stationery, in particular to a writing tool suitable for multi-standard gel pen refills.

Background technique

Because of its smooth and uniform writing feel and long-term continuous writing ability, the gel pen has replaced the traditional ballpoint pen with poor hand feeling and the fountain pen that relies heavily on ink supply, and has become the most important writing tool in people's work and study. But different types of gel pen refills have different refill head structures, different lengths and thicknesses. The inventor has carried out investigation and research on the main several pen cores of different manufacturers' different models on the market, and the results are as follows:

The research found that, as shown in Figure 2-3, the common gel pen refill R includes the gel pen refill head A, the refill tail B, and the pen body connecting the gel pen refill head A and the refill tail B , there is a writing part C on the refill head A of the gel pen; there is a step S (R2～R5) or no step structure (R1) at the connection between the refill head A of the gel pen and the refill body, or there is no step structure (R1). The refill of the step S is positioned by overlapping the step S with the pen tube; the refill without a step structure is usually covered with a spring on the refill, and the positioning of the refill is realized together with the telescopic mechanism at the end of the pen tube. The positioning methods are different. Not the same; the types of gel pen refill A are also different, mainly bullet type (R1~R3), full needle tube type (R4) and half needle tube type (R5); in terms of pen body thickness and total length, there are mainly Thick and short type (R1), thicker and longer type (R2) and slender type (R3-R5).

It can be seen that the positioning method of the existing common refills, the form of the refill head, the thickness of the pen body and the total length are not the same, and the existing pens can basically only use the same type of refill, and cannot be compatible with other types of refills. When a refill of a matching model cannot be purchased, the pen will not be usable and has to be discarded.

Contents of the invention

The purpose of the present invention is to provide a pen tool suitable for multi-standard gel refills, which can overcome the deficiencies of the prior art, and is suitable for a variety of pen refills with different types of refill heads, different lengths, and different thicknesses that are common on the market. Pen refills can reduce the waste of pens, save resources and protect the environment.

Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

A pen tool suitable for gel pen refills of multiple specifications, comprising a pen tube and a nib detachably connected to the pen tube, the pen head is hollow, and there are openings in the interior of the nib corresponding to gel pen refill heads of various structures. Adaptive positioning structure; the pen tube is provided with elastic positioning parts adapted to the tails of gel pen refills of various specifications; the positioning structure includes first openings arranged concentrically along the pen tip to the tail end, The second opening; the first opening is adapted to the size of the writing part of the refill head, and is used to expose the writing part of the refill head to the outside of the pen head; the second opening is larger than the first opening, A step is formed with the first opening for positioning the writing part of the refill head.

Preferably, the positioning structure further includes a third opening opened between the second opening and the tail end of the nib, the third opening is larger than the second opening, and is a multi-stage stepped hole or a smooth arc hole Or a combination of the two, used to accommodate the refill head as a whole into the nib.

Preferably, the size range of the first opening is 2.36-2.45 mm.

Preferably, the elastic positioning member includes a positioning portion for positioning the tail of the pen core, an engaging portion for connecting the pen barrel, and a deformation portion connecting the positioning portion and the engaging portion.

Preferably, the positioning part is a coiled tension spring, including a cylindrical main part and a tapered transition part that can be folded into the cylindrical main part; the engaging part is a conical compression spring; the deforming part It is a cylindrical compression spring; the extension spring, conical compression spring and cylindrical compression spring are integrally formed.

Preferably, the maximum outer diameter of the conical compression spring is larger than the inner diameter of the pen tube, the maximum outer diameter of the extension spring is smaller than the inner diameter of the pen tube, and the smallest outer diameter of the extension spring is larger than the cylindrical pressure spring. The diameter of the spring, the elastic modulus of the cylindrical compression spring is greater than the elastic modulus of the conical compression spring.

Preferably, the outer diameter of the cylindrical body part is in the range of 5.85-6.15 mm.

Preferably, the positioning part is a rigid hollow cylinder, including a cylinder main body, a conical connecting part, a first spring limiting part, and a spring inside the conical connecting part and the first spring limiting part. Separator; the engaging part is a circular plate receiving part, including a receiving body, a second spring limiting part that cooperates with the first spring limiting part, and an elastic contact block arranged on the side of the receiving body ; The deformation part is a compression spring.

Preferably, the pen tool further includes a pen cap; the head of the pen tube is provided with a first thread for connecting with the pen head, and the blunt part of the pen head is provided with a second thread matching the first thread, The open end of the pen cap is provided with a third thread matching the second thread; the length of the second thread is greater than the sum of the lengths of the first thread and the third thread.

Preferably, the head of the pen tube is also provided with a guiding part for guiding the elastic positioning member into the interior of the pen tube; the tail of the pen tube is also provided with a slot for engaging with the engaging part close; a tail cap, detachably connected with the tail of the pen tube.

In summary, the present invention has the following beneficial effects:

A pen tool suitable for gel pen refills with multiple specifications. The positioning mechanism set in the pen head and capable of accommodating various gel pen refill heads can limit the position of the writing part of the gel pen head; the elastic positioning part set in the pen tube It includes a positioning part for positioning the refill tail, an engaging part for connecting the pen barrel, and a deformation part connecting the positioning part and the engaging part. The positioning part is aimed at different lengths and different thicknesses of the refill tail Use different parts and shape changes to limit the tail of the pen core and adjust the length of the pen core head exposed to the pen tube head. The compression deformation of the deformation part combined with the screwing of the pen tube and the pen tip makes the pen core installed firmly in the pen. Thereby realizing that the same pen tool is applicable to multiple gel pen refills.

Description of drawings

Fig. 1 is the exploded schematic view of Embodiment 1 of the present invention;

Fig. 2 is the structural representation of common gel pen refill;

Fig. 3 is the structural representation of common various types gel pen refills;

Fig. 4 is the structural representation of nib;

Fig. 5 is a structural schematic diagram of a style of elastic positioning member;

Fig. 6 is the structural representation of pen tube;

Fig. 7 is a schematic diagram of the completed structure of the pen;

Fig. 8 is a schematic structural view of the elastic positioning member in the second embodiment;

Fig. 9 is a schematic diagram of the completed installation of the third embodiment.

In the picture:

10-pen tube, 20-pen tip, 30-pen cap, 21-positioning structure, 40-elastic positioning member, 211-first opening, 212-second opening, 213-third opening, 214-ladder, R -Gel pen refill, A-gel pen refill head, C-refill head writing part, B-refill tail, S-step, 41-tension spring, 42-conical pressure spring, 43-cylindrical pressure Spring, 411-cylindrical body, 412-tapered transition, 11-first thread, 21-second thread, 31-third thread, 12-guide, 13-card slot, 14-end cap, R1 ~R5-gel pen refills of various specifications, A1～A5-gel pen refill heads of various specifications, B1～B5-refill tails of various specifications, C1～C5-refill heads of various specifications, 51-rigid hollow Cylinder, 511-cylinder main body, 512-tapered connection part, 513-first spring limiting part, 514-partition plate, 52-circular plate receiving part, 521-second spring limiting part, 522-receiving main body , 523-elastic contact block, 53-stage clip.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred solutions.

This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

Example 1:

As shown in Figures 1-4, a pen tool suitable for multi-standard gel pen refills includes a pen tube 10 and a pen tip 20 detachably connected to the pen tube 10. The pen tip 20 is hollow and has a A positioning structure 21 compatible with gel pen refill heads A of various structures; an elastic positioning member 40 compatible with gel pen refill tails B of various structures is provided in the pen tube 10 . The pen tube 10 and the nib 20 are made of wood or plastic, which are light in weight and smooth in writing.

The positioning structure 21 includes a first opening 211 and a second opening 212 arranged concentrically along the nib 20 from the tip to the blunt portion. Different types of gel pen refills have different refill head structures, different lengths and Thickness, based on the research in the background technology, the inventor also found that the diameter of the writing part C of the refill head of the common gel pen refill shown as R1-R5 on the market is all within the range of 2.2-2.3mm and its tolerance range. And a small step P is formed at the connection with other parts of the refill head. Therefore, the size range of the first opening 211 is specified as 2.36-2.45 mm, which is compatible with the size of the writing part C of the refill head. The second opening 212 and the first opening 211 form a step 214, which is attached to the small step P To ensure that the writing part C of the refill head can pass through the first opening 211 smoothly, while other parts of the refill head A are blocked from the first opening 211, so as to realize the limitation of various common refill heads ;

The positioning structure 21 further includes a third opening 213 opened between the second opening 212 and the tail end of the nib 20 , the third opening 213 is larger than the second opening 212 . The third opening 213 is a multi-stage stepped hole or a smooth arc hole or a combination of the two, which can accommodate the above-mentioned various common pen core heads and pen bodies as a whole.

As shown in Figures 5-7, the pen tool also includes a pen cap 30; the head of the pen tube 10 is provided with a first screw thread 11 for connecting with the pen tip 20, and the blunt part of the pen tip 20 is provided with The second thread 21 matching the first thread 11, the open end of the pen cap 30 is provided with the third thread 31 matching the second thread 21; the length of the second thread 21 is longer than that of the first thread 11 and The sum of the lengths of the third threads 31 . Thus, the nib 20 and the pen barrel 10 are screwed together, and the cap 30 is screwed with the nib 20 .

Further, the elastic positioning member 40 includes a positioning portion for positioning the refill tail B, an engaging portion for connecting the pen tube 10 and a deformation portion connecting the positioning portion and the engaging portion; The positioning part is a coiled tension spring 41, which includes a cylindrical main body 411 and a tapered transition part 412 that can be folded into the cylindrical main body 411; the engaging part is a conical compression spring 42; the deformation The part is a 43; the extension spring 41, the conical compression spring 42, and the cylindrical compression spring 43 are integrally formed, which has a high degree of integration and is easy to install and use.

Based on the research in the background technology, it can be seen that the thickness of common gel pen refills is within 6.1mm and its tolerance range, so the outer diameter of the cylindrical main body 411 is specified as 5.85-6.15mm, so that the diameter is larger and the length is shorter. The short R1-type refill directly abuts against the upper surface of the cylindrical main body 411, and the smaller-diameter and longer-length refills R2-R5 extend into the cylindrical main body 411, and the lengths of R2-R3 and R4-R5 vary little. , leaning against specific different parts of the tapered transition portion 412, combined with the compression of the cylindrical compression spring 43, the pen can be applied to refills of different lengths and fixed firmly; further, the minimum outer diameter of the tension spring 41 The diameter is greater than the diameter of the cylindrical compression spring 43, so that the diameter of the tapered transition portion 412 gradually decreases along the direction from the extension spring 41 to the cylindrical compression spring 43, and the tapered transition portion 412 can be reversely folded into the cylindrical main body portion 411, and at the same time The height of the cylindrical body part 411 and the height of the tapered transition part 412 are reduced, so that the writing tool can be loaded with different types of longer refills, and the length range of the applicable refills of the writing tool is expanded.

The maximum outer diameter of the said 42 is greater than the maximum outer diameter of the extension spring 41, and also greater than the inner diameter of the pen tube 10. When the elastic positioning part 40 enters the pen tube 10, the conical pressure spring 42 enters the pen tube 10 smoothly through the guidance of the guide part 12 and is elastically contracted against the inner wall of the pen tube 10 all the time, so that the elastic positioning part 40 does not Easily fall out and be lost; use a slender piece or a thin pen core to push the elastic positioning part 40 to the tail of the pen tube 10, the tail of the pen tube 10 is provided with a card slot 13, and the elastic positioning part 40 is pushed to the tail of the pen tube 10 When snapping into the card slot 13, the joint is guaranteed to be stable; the end of the pen tube 10 is also provided with a tail cap 14, which is detachably connected with the tail of the pen tube 10, and elastic positioning parts 40 of different lengths can be used after the tail cap 14 is removed. Replacement to adapt to the use of very used refills.

The elastic modulus of the cylindrical compression spring is greater than the elastic modulus of the conical compression spring, the compression of the cylindrical compression spring and the screwing of the pen tube 10 and the nib 20 work together, the refill head A is positioned in the nib 20, and the pen The core tail B is positioned in the elastic positioning member 40, so that the pen core can be installed firmly in the writing tool.

Example 2:

As shown in FIG. 8 , the elastic positioning member 40 includes a positioning portion for positioning the refill tail B, an engaging portion for connecting the pen barrel 10 and a deformation connecting the positioning portion and the engaging portion. part; the positioning part is a rigid hollow cylinder 51, including a cylinder main body 511, a conical connection part 512, a first spring limiting part 513, which is located between the conical connecting part 512 and the first spring limiting part. The partition 514 inside the position part 513; the engaging part is a circular plate receiving part 52, which includes a receiving body 522, a second spring limiting part 521 that works together with the first spring limiting part 513, and is located on The elastic contact block 523 on the side of the receiving body 522 is connected. The elastic positioning part in this embodiment is a split structure, and the positioning part, the engaging part, and the deformation part are independent, which reduces the difficulty of production and reduces the cost. The rigid hollow cylinder 51 is an injection molded part, which has a lighter weight and can To adapt to the length and thickness of R1 ~ R5 refills, when it is necessary to adapt to a larger range of refills, it can be realized by replacing the compression spring 53 of different lengths; the receiving body 522 of the circular plate receiving part 52 is hard plastic, elastic contact Block 523 is a soft plastic, which produces elastic deformation when it is loaded into the pen tube 10, and is joined with the wall of the pen tube to prevent falling out; the first spring stopper 513 cooperates with the second spring stopper 521 to cover Hold the two ends of the compression spring 53 to make the spring action stable, and a magnet (not shown in the figure) is arranged on the contact surface between the partition plate 514 and the compression spring 53, so that the compression spring 53 is always attached to the spring while increasing the stability of the spring action. Tight in the rigid hollow cylinder 51 to facilitate taking out and replacing.

Example 3:

As shown in Figure 9, the tail of the pen tube 10 has an integrated structure without a slot for fixing the elastic positioning member 40, and the elastic positioning member 40 is fixed on the pen tube by the elastic extrusion force of the outer ring of the engaging part 42 and the inner wall of the pen tube 10. 10 bottom, when the elastic positioning member 40 needs to be taken out for replacement, it can be hooked out with a slender small hook. The pen tube 10 is simple in structure, convenient to manufacture and low in cost.

Claims (10)

1. a kind of pen tool for being suitable for many specification refill of gel-ink pen, including the shaft of a writing brush（10）With the shaft of a writing brush（10）It is detachably connected Nib（20）, it is characterised in that：The nib（20）It is hollow, the refill of gel-ink pen head with various structures is offered inside it（A） Adaptable location structure（21）；The shaft of a writing brush（10）In be provided with refill of gel-ink pen tail with plurality of specifications（B）Adaptable bullet Property keeper（40）；The location structure（21）Including along nib（20）The first perforate that tip to tail end is arranged concentrically successively （211）, the second perforate（212）；First perforate（211）With pen core head writing portion（C）Size is adapted, for making pen core head Writing portion（C）Expose the nib（20）Outside；Second perforate（212）More than first perforate（211）, with described One perforate（211）Form step（214）, for pen core head writing portion（C）Positioned.

2. a kind of pen of suitable for various size refill of gel-ink pen according to claim 1 has, it is characterised in that：The positioning Structure（21）Also include opening in second perforate（212）With the nib（20）3rd perforate of tail end（213）, the described 3rd Perforate（213）More than second perforate（212）, it is the combination of multistage shoulder hole or light slip circle hole or both, for by pen Core print（A）It is integrally contained to written（20）It is interior.

3. a kind of pen of suitable for various size refill of gel-ink pen according to claim 2 has, it is characterised in that：Described first Perforate（211）Size be 2.36～2.45mm.

4. a kind of pen of suitable for various size refill of gel-ink pen according to claim 1 has, it is characterised in that：The elasticity Keeper（40）Including for positioning pen core tail（B）Location division, for connecting the shaft of a writing brush（10）Holding section and connection The deformations of the location division and the holding section.

5. a kind of pen of suitable for various size refill of gel-ink pen according to claim 4 has, it is characterised in that：The positioning Portion is the extension spring of a doubling-up（41）, including cylinder body portion（411）, the cylinder body portion can be folded into（411）Interior taper Cross portion（412）；The holding section is a taper stage clip（42）；The deformations are a cylinder stage clip（43）；The extension spring（41）、 Taper stage clip（42）, cylinder stage clip（43）It is integrally formed.

6. a kind of pen of suitable for various size refill of gel-ink pen according to claim 5 has, it is characterised in that：The taper Stage clip（42）Maximum outside diameter be more than the shaft of a writing brush（10）Internal diameter, the extension spring（41）Maximum outside diameter be less than the shaft of a writing brush （10）Internal diameter, the extension spring（41）Minimum outer diameter be more than the cylinder stage clip（43）Diameter, the cylinder stage clip（43） Elastic modelling quantity be more than the taper stage clip（42）Elastic modelling quantity.

7. a kind of pen of suitable for various size refill of gel-ink pen according to claim 5 has, it is characterised in that：The cylinder Main part（411）External diameter size be 5.85～6.15mm.

8. a kind of pen of suitable for various size refill of gel-ink pen according to claim 4 has, it is characterised in that：The positioning Portion is a rigid hollow cylinder（51）, including cylindrical body（511）, cone connection（512）, the first spring retainer portion（513）、 Located at the cone connection（512）With the first spring retainer portion（513）Internal dividing plate（514）；The holding section is One plectane supporting（52）, including accept main body（522）With the first spring retainer portion（513）Coefficient second bullet Spring limiting section（521）, located at the undertaking main body（522）The elastic connecting contact block of sidepiece（523）；The deformations are a stage clip （53）；The dividing plate（514）With the stage clip（53）Contact surface be provided with magnet.

9. a kind of pen of suitable for various size refill of gel-ink pen according to claim 2 has, it is characterised in that：The pen tool Also include the cap for brush（30）；The shaft of a writing brush（10）Head be provided with for the nib（20）The first screw thread being connected（11）, institute State nib（20）Blunt portion is provided with and first screw thread（11）Second screw thread of matching（21）, the cap for brush（30）Openend is provided with With second screw thread（21）3rd screw thread of matching（31）；Second screw thread（21）Length be more than first screw thread （11）With the 3rd screw thread（31）Length sum.

10. a kind of pen of suitable for various size refill of gel-ink pen according to claim 1 has, it is characterised in that：The pen Pipe（10）Head is additionally provided with for guiding the flexible positioning piece（40）Into the shaft of a writing brush（10）Internal guide portion（12）；Institute State the shaft of a writing brush（10）Afterbody is additionally provided with a draw-in groove（13）, for the holding section（42）Fasten；One tail-hood（14）, it is and described The shaft of a writing brush（10）Rear removable connects.