CN2759802Y

CN2759802Y - Writing-core structure for pen

Info

Publication number: CN2759802Y
Application number: CN 200420088731
Authority: CN
Inventors: 谢明仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-29
Filing date: 2004-09-29
Publication date: 2006-02-22
Anticipated expiration: 2014-09-29

Abstract

The utility model relates to a pen-core structure for a pen appliance, which comprises an outer pen tube, a pen core, an inner sleeve tube and a compression spring, wherein the outer pen tube comprises a pen head, a pen tail and a pen holder, wherein the pen body is provided with a button hole of which the outer margin is provided with an elastic button which can be penetrated through the button hole from outside to be elastically tightened on the inner sleeve tube of the outer pen tube. The pen core is sheathed in the inner sleeve tube, and a pen core tip of the pen core can extend out the pen head. The inner sleeve tune is sheathed in the outer pen tube and can slide backwards and forwards, and the front end of the inner sleeve tube is provided with a ring block and an outer ring flange for blockage. The compression spring is arranged in the pen head and is sheathed on the front end part of the pen core, and the pen core is elastically supported between the pen head and the sleeve tube by the compression spring. The utility model has the outstanding effects that the button does not need to be arranged outside the pen appliance, and the operation mode is simple while in use.

Description

The pen core structure of a kind of tool

Technical field:

The utility model relates to pen, more specifically to the pen core structure of a kind of tool.

Background technology:

Have a variety ofly on the tool in order to the structure of operation refill expansion, modal is directly to utilize pushing and releasing back of a button and operate refill expansion; Also have and make penholder length flexible adjustment and make refill expansion simultaneously, as: U.S. Pat 6.276,855B, or its purpose of novel No. 136892 of the Taiwan stretching structure of rotation dual mode " scalable and " receives and keeps in that penholder can be shortened to insert in the tiny pocket, or adjusted elongation and be beneficial to hand and write; Its weak point is: it need stretch by button or penholder and realize the flexible of pen core, and it is convenient inadequately to use.

Summary of the invention:

Technical problem to be solved in the utility model is the flexible flexible deficiency that need realize pen core by button or penholder that overcomes an existing tool pen core, and provide the pen core structure of a kind of tool, it is a kind of stretching structure that does not need button, reaches the purpose of refill expansion by a whipping tool.

The utility model is achieved by the following technical solution:

The pen core structure of a kind of tool, comprise outer pen tube, pen core, inner sleeve and compression spring, outer pen tube comprises nib, body, a tail and pen clip, the place, right position is provided with a buttonhole on one's body pen, this buttonhole outer rim is established an elasticity button, and this elasticity button can be by penetrating outward on buttonhole and the inner sleeve of elasticity packing in outer pen tube;

Pen core is to be sheathed on inner sleeve inside, and its pen core point is extended outside nib;

Inner sleeve be set in outer pen tube inner and can before and after slide, its front end is provided with ring piece and block outer ring flange;

The compression spring is to be located in the nib and to be set in the pen core leading portion portion, make pen core mat compression spring and resiliency supported between nib and inner sleeve;

But the nib of said structure mat outer pen tube is whipping forward, make inner sleeve inertia slip forward, and when the outer ring flange on the inner sleeve is crossed on the outer pen tube buttonhole forward, the elasticity button can live and formation book state inner sleeve and overhanging forward pen core location by passing buttonhole and packing block card outward on this outer ring flange; When mobile elasticity button and away from outer ring flange, but pen core and inner sleeve borrow the pen core front end sheathed compression spring and elasticity retracts into the harvesting state backward.

Described elasticity buttonhole can be located at the tail end of pen clip, and the resilient clamp power of mat pen clip is as the elastic force of elasticity button, makes the elasticity button can pass buttonhole and elasticity packing on inner sleeve.

Described ring piece and outer ring flange can be molded directly within on the front end of inner sleeve.

Described ring piece is made into a structural member, is sheathed on the front end of inner sleeve again.

The beneficial effects of the utility model are: owing to be provided with buttonhole on one's body at pen of the present utility model, and this buttonhole outer rim is provided with an elasticity button, this elasticity button can be by penetrating outward on buttonhole and the inner sleeve of elasticity packing in outer pen tube, need not establish button in a tool outside, can easily change the state of writing and harvesting state during use, mode of operation is simple.

Description of drawings:

The three-dimensional appearance schematic diagram of accompanying drawing 1 for contracting in the utility model pen core;

Accompanying drawing 2 is the overhanging three-dimensional appearance schematic diagram of the utility model pen core;

Accompanying drawing 3 is the three-dimensional exploded view of the utility model structure;

Accompanying drawing 4 side sectional view when contracting in the utility model pen core;

Accompanying drawing 5 is the side sectional view of the utility model pen core when overhanging;

The figure number simple declaration:

10 bodies of outer pen tube, 11 buttonholes, 111 nibs 12

Tail 13 guide channels 131 pen clips 14 elasticity buttons 141

Pen core 20 inner sleeves 30 outer ring flanges 31 ring pieces 32

Compression spring 40

The specific embodiment:

See shown in Fig. 1,2,3,4,5, the pen core structure of tool, comprise an outer pen tube 10, a pen core 20, an inner sleeve 30 and compression spring 40, outer pen tube 10 comprises a body 11, nib 12, a tail 13 and pen clip 14, and a tail 13 inside can be provided with the column type guide channel 131 of a coaxial and appropriate depth; And pen core 20 rear ends are to be inserted in inner sleeve 30 inside, and pen core 20 and inner sleeve 30 can be slided before and after outer pen tube 10 inter-syncs; And inner sleeve 30 is bodys of a front opening back-end closure, and its front end is provided with the ring piece 32 and the block outer ring flange 31 of a tool loading; And the appropriate position is provided with a buttonhole 111 on the body 11 of outer tube sleeve 10, and buttonhole 111 outer rims are established an elasticity button 141, makes the elasticity button 141 can be by penetrating buttonhole 111 and elasticity packing outward on inner sleeve 30.

When reality was made, this elasticity button 141 can be located at the tail end of pen clip 14, and mat pen clip 14 original resilient clamp power are as the elastic force of elasticity button 141, made elasticity button 141 have enough fastening forces and passed buttonhole 111 and elasticity packing on inner sleeve 30.

The interior rear end of outer tube 10, an i.e. tail 13 inside, can be provided with the guide channel 131 of a tool appropriate depth, and the circle footpath width of this guide channel 131 is slightly larger than the circle footpath width of inner sleeve 30 rear ends, can be comparatively stable when inner sleeve 30 is slided before and after in outer pen tube 10, increase the steadiness of pen core 20 relatively, avoid pen core 20 when writing, to produce and shake.

Buttonhole 111 is that the block on the pipe box 30 designs with outer ring flange 31 in cooperating on the outer pen tube 10, as shown in Figure 5, when elasticity button 141 pass buttonhole 111 and the elasticity packing on the inner sleeve 30 and block card during at outer ring flange 31, be inserted in inner sleeve 30 pen core points 21 inner and pen core 20 and just can convexedly stretch in outside nib 12 outlets, and form the state of writing.

And nib is provided with a compression spring 40 in 12, and this compression spring 40 also is set in the leading portion portion of pen core 20, make pen core 20 mats compression spring 40 and resiliency supported in written 12 and inner sleeve 30 between; Inner sleeve 30 is provided with the ring piece 32 and the block outer ring flange 31 of the corresponding weight of a tool again, and it can utilize copper or iron quality metal material is made.

The operational circumstances of the utility model refill expansion is described respectively below again:

1), shown in Fig. 2,5, desired to stretch out the pen core point at 21 o'clock, the hand-holdable outer pen tube 10 of user but nib 12 whippings forward, make the inner sleeve 30 of tool constant weight drive pen core 20 (written 12 directions) inertia slip forward, then when the outer ring flange on the inner sleeve 30 31 is crossed on the outer pen tube 10 buttonhole 111 forward, elasticity button 141 can pass buttonhole 111 and elasticity packing and block card by the outside and live this outer ring flange 31, make inner sleeve 30 and the overhanging forward pen core 20 can't be, and form the state of writing to after-contraction.

2), shown in Fig. 1,4, during desire withdrawal pen core 21, the user can draw back pen clip 14 so that elasticity buttonhole 141 leaves buttonhole 111 and outer ring flange 31, then pen core 20 and inner sleeve 30 be mat pen core 20 front ends the elastic force of sheathed compression spring 40 and retraction backward, and form the harvesting state.

Pipe box 30 can utilize copper or iron quality metal material and one-body molded in above-mentioned, and the also ring piece 32 of moulding one tool loading in addition is set on the straight tube again and forms inner sleeve 30, and the edge surface that makes ring piece 32 is as block usefulness outer ring flange 31.

Claims

1. the pen core structure of one kind of tool comprises outer pen tube (10), pen core (20), inner sleeve (30) and compression spring (50), it is characterized in that:

Outer pen tube (10) comprises nib (12), a body (11), a tail (13) and pen clip (14), be provided with a buttonhole (111) on one's body at pen, this buttonhole (111) outer rim is established an elasticity button (141), and this elasticity button (141) can be by penetrating outward on buttonhole (111) and the elasticity packing inner sleeve (30) in outer pen tube (10);

Pen core (20) is to be sheathed on inner sleeve (30) inside, and its pen core point is extended outside nib;

Inner sleeve (30) be set in outer pen tube (10) inner and can before and after slide, its front end is provided with ring piece (32) and a block with outer ring flange (31);

Compression spring (40) is to be located in the nib (12) and to be set in pen core (20) the leading portion portion, and pen core (20) mat compression spring (40) and resiliency supported are between nib (12) and inner sleeve (30).

2. the pen core structure of a tool according to claim 1, it is characterized in that: this elasticity button (141) can be located at the tail end of pen clip (14), and the resilient clamp power of mat pen clip (14) is as the elastic force of elasticity button (141), makes elasticity button (141) can pass buttonhole (111) and elasticity packing on inner sleeve (30).

3. the pen core structure of a tool according to claim 1 is characterized in that: this ring piece (32) and outer ring flange (31) can be molded directly within on the front end of inner sleeve (30).

4. the pen core structure of a tool according to claim 1 is characterized in that: this ring piece (32) is made into a structural member, on the front end that is sheathed on inner sleeve (30).