CN100425462C

CN100425462C - Core structure of writing tool

Info

Publication number: CN100425462C
Application number: CNB2004100516488A
Authority: CN
Inventors: 谢明仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-29
Filing date: 2004-09-29
Publication date: 2008-10-15
Anticipated expiration: 2024-09-29
Also published as: CN1644396A

Abstract

The present invention relates to a pen core structure of a pen, 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 body, a pen tail and a pen clamp; the pen body is provided with a buttonhole provided with an elastic button at the outer edge, and the elastic button can penetrate the buttonhole from outside and elastically compact the inner sleeve tube in the outer pen tube; the pen core is sheathed on the inner part of the inner sleeve tube, and the tip of the pen core can extend out of the pen head; the inner sleeve tube sheathed on the inner part of the outer pen tube 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 blocking and stopping the ring block; the compression spring is arranged in the pen head and is sheathed on the front end of the pen core elastically supported between the pen head and the inner sleeve tube by the compression spring. The present invention has the obvious advantages that the outer part of the pen does not need to be provided with a press-button, and the operation mode is simple when the present invention is in use.

Description

The pen core structure of a kind of tool

Technical field:

The present invention 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 by this invention 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 present invention is achieved through the following technical solutions:

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 the block outer ring flange with corresponding weight;

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 removing the elasticity button 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 button is 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 are 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.

1), when using outstanding effect of the present invention is:, mode of operation is simple; 2), need not establish button in a tool outside.

Description of drawings:

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

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

Accompanying drawing 3 is the three-dimensional exploded view of structure of the present invention;

Accompanying drawing 4 side sectional view when contracting in the pen core of the present invention;

Accompanying drawing 5 is the side sectional view of pen core of the present invention 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, envies the ring piece 32 and the block outer ring flange 31 that are provided with a tool loading on its front end; And right position place is provided with a buttonhole 111 on the body 11 of outer pen tube 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 can pass buttonhole 111 and elasticity packing on inner sleeve 30.

The interior rear end of outer pen tube 10, an i.e. tail 13 inside, can establish 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.

The upright position of filling of buttonhole 111 is to cooperate the block on the inner sleeve 30 to design with outer ring flange 31 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 established a compression spring 40 in 12, and this compression spring 40 also is set in pen core 20 leading portion portions, 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 a ring piece 32 and the block outer ring flange 31 with corresponding weight again, and it can utilize copper or iron quality metal material is made.

Down at the operating conditions that refill expansion of the present invention is described respectively 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 and make 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, inner sleeve 30 and overhanging forward pen core 20 can't be bounced back backward, and form the state of writing.

2), shown in Fig. 1,4, desire withdrawal pen core point 21 o'clock, the user can draw back pen clip 14 so that elasticity button 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.

Above-mentioned inner sleeve 30 can utilize copper or iron quality metal material and one-body molded, 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 as block with outer ring flange 31.

Claims

1, the pen core structure of a kind of tool comprises outer pen tube (10), pen core (20), inner sleeve (30) and compression spring (40), 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) with corresponding weight 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 according to claim 1 tool, it is characterized in that: this elasticity button (141) is located at the tail end of pen clip (14), and the resilient clamp masterpiece of mat pen clip (14) is the elastic force of elasticity button (141), makes elasticity button (141) can pass buttonhole (111) elasticity packing on inner sleeve (30).

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

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