CN1325284C

CN1325284C - Retractable pen

Info

Publication number: CN1325284C
Application number: CNB2003101093255A
Authority: CN
Inventors: 马益民
Original assignee: Individual
Current assignee: Xie Mingren
Priority date: 2003-12-12
Filing date: 2003-12-12
Publication date: 2007-07-11
Anticipated expiration: 2023-12-12
Also published as: CN1626361A

Abstract

The present invention provides a telescopic pen which comprises an upper pen tube (20), a lower pen tube (10), an inner sliding sleeve (30), a pen core (50) and a spring (14). The telescopic pen is characterized in that the lower end of the lower pen tube (10) is connected with a pen point tube (13), and the upper end of the lower pen tube can extend into the inner cavity of the upper pen tube (20) in a sliding way; a flange (12) which can not disengage from a convex ring (21) at the lower end of the inner cavity of the upper pen tube (20); the inner sliding sleeve (30) can extend into the inner cavity of the lower pen tube (10) from the flange (12) in a sliding way and is sheathed with the tail end of the pen core (50), and an outer flange (32) which can not disengage from the flange (12) of the lower pen tube (10) is arranged at the extending-in end. The telescopic pen has the advantages that the pen core is compressed or released by the axial slide of the upper pen tube and lower pen tube, so the direct expansion and the direct contraction of the pen core of the previous telescopic pen are changed into the expansion and the contraction of the pen core by the axial slide of the upper pen tube and lower pen tube; due to the firm and stable axial sliding structure of the upper pen tube and lower pen tube, the telescopic pen effectively avoids the defect that the telescopic part of the previous telescopic pen is easy to damage. When the telescopic pen is used for writing, the telescopic pen forms a multi-stage pen rod to disperse stress, so that the writing pen point tube can not be easily broken, and thus, the service life of the telescopic pen can be effectively extended.

Description

A kind of flexible pen

Technical field

The present invention relates to a tool, especially the flexible pen technology field of push type.

Background technology

Variation along with scientific and technological progress and mankind's activity, make the development of a tool also be tending towards variation, and in many tools, the flexible pen of push type becomes a long lasting product, probe into its reason, be that the nib that is the push type ballpoint pen has the function of shrinking voluntarily, and need not to mate separately the pen cap, so there is not the ballpoint pen pen cap shortcoming such as to lose, can't clamping carry.The inventor is in the patent No. is 01238915.3 Chinese utility model patent, its structure includes the shaft of a writing brush for it, the cap for brush is arranged at last shaft of a writing brush top, last shaft of a writing brush bottom is connected with the following shaft of a writing brush, the shaft of a writing brush forms middle cavity and is built-in with pen core up and down, pressed spring between the pen core protuberance and the following shaft of a writing brush, it is characterized in that the shaft of a writing brush has a slide block in cap for brush lower cavity, slide block is connected with the depression bar that cooperates with last shaft of a writing brush surface guide groove, slide block also has the fixture block hole simultaneously, built-in little spring and fixture block, fixture block matches with chute bottom, last shaft of a writing brush surface hole clipping.The advantage of this structure is, need not complicated retainingf key and rotation key, simplifies the structure, and each part is also convenient to be produced and processing, and production cost is reduced, and parts also are difficult for because of the structural design cause causes wear damage long service life.But its shortcoming is that the shaft of a writing brush directly connects up and down, and the stress that is positioned at nib is more concentrated, easily causes nib to be broken, and volume is also bigger in addition, does not give full play to the long-pending advantage little, easy to carry of flexible handwriting; Between pen core tail end and slide block, having additional intermediate mass in addition, designing simple and clearly not enough, be once more, sometimes after writing, forgotten operation pen core has been withdrawn in the shaft of a writing brush, hang on the pocket and directly pen is buckled, can cause black liquid pollution clothes, so its structure awaits to improve.

Summary of the invention

Technical problem to be solved by this invention provide a kind of simple in structure firmly, the flexible pen of overall appearance, easy and simple to handle and long service life.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: it includes the shaft of a writing brush, the following shaft of a writing brush, inner sliding sleeve, pen core and spring, pen core places in the middle cavity that the shaft of a writing brush forms up and down movably, spring housing places on the pen core and with the pen core protuberance and contacts mutually, inner sliding sleeve places in the shaft of a writing brush slidably, and on this inner sliding sleeve, have the fixture block hole, the fixture block hole is built-in with little spring and fixture block, fixture block can match with the hole clipping on the last shaft of a writing brush chute under user mode, and fixture block is connected with the depression bar that matches with chute, it is characterized in that the described lower end of the shaft of a writing brush down links to each other with the nib pipe, its upper end is stretched in the shaft of a writing brush inner chamber slidably, and this end be provided with can not from the flange that breaks away from the bulge loop of shaft of a writing brush inner chamber lower end, described inner sliding sleeve stretches into the tube cavity and contact mutually with the pen core tail end of starting writing from flange end slidably, and is provided with the outward flange that can not break away from stretching into the end from the Pipe Flange of starting writing.

Also be provided with the protruding level of a scalariform on the above-mentioned fixture block, this protruding level can be suitable and identical with the hole clipping at last shaft of a writing brush chute two ends under user mode

Above-mentioned last shaft of a writing brush cover can be provided with pen clip, intermediate plate one end on the pen clip is resisted against on the lateral surface of the shaft of a writing brush, this intermediate plate can corresponding be arranged at directly over the chute of the shaft of a writing brush, and on intermediate plate, establish a guide groove, depression bar one end is stretched into fixture block from guide groove and chute link to each other, its other end is positioned on the outer edge surface of intermediate plate guide groove.

Above-mentioned depression bar can design and be the button spike, and major part is positioned on the outer edge surface of guide groove, and the microcephaly links together with tight fit or the mode that is threaded and fixture block.

Above-mentioned pen core protuberance can be the platform level face in the big footpath of pen core.

The above-mentioned following shaft of a writing brush can divide big footpath and path two parts, and an end in big footpath links to each other with the nib pipe, and path can stretch into shaft of a writing brush inner chamber.

Above-mentioned interior cunning can be overlapped the big footpath of branch and path two parts, and path can stretch into the tube cavity of starting writing, and described fixture block hole promptly is positioned on the big footpath of inner sliding sleeve.

The above-mentioned following shaft of a writing brush is inserted the formula close-fitting and is connected or be threaded with can be being connected of written pipe.

Compared with prior art, the invention has the advantages that adopting up and down the shaft of a writing brush to endwisely slip compresses or discharges pen core, change like this go to direct refill expansion for about endwisely slipping of the shaft of a writing brush reach the purpose of telescopic pen core.Because of the sound construction, solid in axial sliding of the shaft of a writing brush up and down, so avoided going to the perishable shortcoming of pars contractilis of flexible pen effectively, and when the present invention forms multistage penholder when writing, stress is disperseed, thereby make and write written pipe and be difficult for breaking, prolonged the service life of flexible pen effectively, owing to adopt multistage penholder, volume greatly reduces when making flexible pen be in the retraction state simultaneously; And flexible pen is in that the time spent penholder is short, penholder prolongs during use, so both put just and write, be easy to carry again, and this pen is when user mode, the depression bar card only promptly is positioned at the front end place of intermediate plate in the hole clipping of the lower end of last shaft of a writing brush chute, the depression bar retaining is refused the front opening place at intermediate plate like this, the user promptly can't utilize the intermediate plate of pen clip will stretch pen clip in pocket if forget when flexible pen reverted back to the harvesting state, has so just avoided the printing ink on the pen core to besmirch clothes.And the present invention is simple in structure, easy to operate, and the chute of the last shaft of a writing brush and the guide groove on the pen clip are with the setting that coincides up and down, and depression bar is placed through wherein, make flexible pen look overall appearance, neat, so flexible pen of the present invention is a kind of very practical product, is worthy of popularization.

Description of drawings

Fig. 1 is an embodiment of the invention perspective exploded view;

Fig. 2 is that Fig. 1 assembles the stereogram of back when not writing state;

Fig. 3 is the operation neutral body schematic diagram of Fig. 2 when preparing to write;

Fig. 4 is that Fig. 2 is in the three-dimensional icon intention when writing state;

Fig. 5 is the side sectional view of Fig. 2;

Fig. 6 is the side sectional view of Fig. 3;

Fig. 7 is the side sectional view of Fig. 4.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2 and shown in Figure 5, present embodiment mainly is made of the last shaft of a writing brush 20, the following shaft of a writing brush 10, inner sliding sleeve 30 and depression bar 40, wherein, the last shaft of a writing brush 20 is socketed in down on the shaft of a writing brush 10 on the path 11 outer peripheral edges faces, but make 20,10 on the upper and lower shaft of a writing brush form the axial stretching activity relationship, and down path 11 tail ends of the shaft of a writing brush 10 are provided with flange 12, and the front end of going up the shaft of a writing brush 20 is provided with bulge loop 21 in it, make up and down that 20,10 on the shaft of a writing brush is scalable to be moved but can not break away from.Its inner sliding sleeve 30 is arranged on the upper and lower shaft of a

writing brush

20,10 inside and can endwisely slips front and back, and the path 31 of leading portion pipe is inserted in down in the shaft of a writing brush 10 on the inner sliding sleeve 30, its front end is provided with outward flange 32, inner sliding sleeve 30 leading portion pipes 31 are slided but the shaft of a writing brush under can not breaking away from front pen tube, be provided with pen core 50 in the leading portion pipe 31 again, and the lower end of the shaft of a writing brush 10 links to each other with nib pipe 13 down, is nested with a spring 14 between pen core 50 and nib pipe 13, and these spring 14 covers are through on the pen core 50; Slide the last shaft of a writing brush 20 in the big footpath 33 of inner sliding sleeve 30 again,

big footpath

33 and 31 drops of path, make inner sliding sleeve 30 greatly directly 33 in the last shaft of a writing brush 20 slip but the shaft of a writing brush 20 on not breaking away from; Inner sliding sleeve 30 big footpaths 33 are provided with radially fixture block hole 34 again, radially establish a fixture block 35 in the fixture block hole 34 and reply little spring 36, and fixture block 35 outer ends are connected depression bar 40, and depression bar 40 can move forward and backward in the corresponding chute 22 on the last shaft of a writing brush 20, and the upper and lower end of chute 22 is respectively equipped with hole clipping 24 and following hole clipping 23; Fixture block 35 is provided with a scalariform protuberance 351 again, cooperates with hole clipping up and down, and forward and backward slip on the chute 22 that just coincide treats that scalariform protuberance 351 convexedly stretches in or time hole clipping 24 or 23 is promptly blocked and stopped.On the last shaft of a writing brush 20, be provided with a pen clip 60 again, the lower end (front end) of its intermediate plate 61 is resisted against on the shaft of a writing brush 20 lateral surfaces, intermediate plate 61 can be positioned at corresponding to the chute 22 of the last shaft of a writing brush 20 directly over the chute 22, and on intermediate plate 61, establish a corresponding guide groove 62, depression bar 40 is positioned on guide groove 62 outer edge surfaces, and depression bar 40 is made the button spike, is convenient for people to push with hand, major part is positioned on the outer edge surface of guide groove 62, and the microcephaly links together with tight fit or the mode that is threaded and fixture block 35.

The behaviour in service of flexible pen 1 is such:

As Fig. 2, shown in Figure 5, when a desire is received and kept, depression bar 40 (with fixture block 35 interlocks) can be positioned in the last hole clipping 24 of chute 22 of the shaft of a writing brush 20, make under the pen core 50 complete retractions in the shaft of a writing brush 10 and do not expose pen core mouth 51, the forward part cover cap of the shaft of a writing brush 20 is in back segment pipe 11 outer rims of the following shaft of a writing brush 10 on this moment, this back segment pipe 11 is not exposed, and the upper and lower shaft of a

writing brush

20,10 promptly fold into the quarter butt state, can be convenient to be stored in the pocket.

As Fig. 3, shown in Figure 6, when pen is desired to write, then operate (pushing) depression bar 40 earlier so that fixture block 35 breaks away from hole clippings 24, the upper and lower shaft of a

writing brush

20,10 is drawn back relatively, promptly going up the shaft of a writing brush 20 slips off backward and exposes a down back segment path 11 of the shaft of a writing brush 10, form the stock state, this moment depression bar 40 also relative displacement is to the lower end of chute 22 but still not as good as hole clipping 23 down, and pen core 50 yet contracts and puts in front pen tube 10 and do not expose a mouth 51.

As Fig. 4, shown in Figure 7, connect process, promote depression bar forward again so that fixture block 35 snaps in down hole clipping 23, and inner sliding sleeve 30 also moves forward with fixture block 35 interlocks, and push pen core mouth 51 simultaneously and make pen stretch out the outer and location of nib pipe 13 forward to live, this moment, 20,10 on the upper and lower shaft of a writing brush drew back the growth bar state backward relatively, so can reach the preferable state of writing.The elastic force of mat spring 14 can make pen core 50 push against on inner sliding sleeve 30 again, and when anti-operation, but also mat spring 14 backward restoring force and inner sliding sleeve 30 bounce back backward reset and is easier to operate.

In addition, the pen clip 60 of can arranging in pairs or groups for flexible 1 uses, see Fig. 4, the state of writing shown in Figure 7, this moment, depression bar 40 cards ended at following hole clipping 23 places, that is intermediate plate 61 front ends (lower end) locate, and then the connecting rod 41 of depression bar 40 just can keep off front end (the being the lower end) opening part of refusing at intermediate plate 61, and then the user is if forget when flexible pen reverted back to the harvesting state, promptly can't utilize the intermediate plate 61 of pen clip 60 will stretch pen clip in pocket, pen core mouth 51 printing ink that contract in can preventing from by this to expose not besmirch clothes.

Depression bar 40 is pushed and slide for users again, itself also can become notes from focus, and therefore for meeting ergonomics, this depression bar 40 can be designed to suitably big or small molding body, or its surface sets up pattern again, uses having advertising results concurrently.

Claims

1, a kind of flexible pen, include the shaft of a writing brush (20), the following shaft of a writing brush (10), inner sliding sleeve (30), pen core (50) and spring (14), pen core (50) places the shaft of a writing brush (20 up and down movably, 10) in the middle cavity of Xing Chenging, spring (14) is placed on pen core (50) and goes up and contact mutually with pen core (50) protuberance, inner sliding sleeve (30) places in the shaft of a writing brush (20) slidably, and on this inner sliding sleeve (30), have fixture block hole (34), fixture block hole (34) is built-in with little spring (36) and fixture block (35), fixture block (35) under user mode can with the hole clipping (23 on the last shaft of a writing brush (20) chute (22), 24) match, and fixture block (35) is connected with the depression bar (40) that matches with chute (22), the lower end that it is characterized in that the described shaft of a writing brush (10) down links to each other with nib pipe (13), its upper end is stretched in the shaft of a writing brush (20) inner chamber slidably, and this end be provided with can not from the flange (12) that breaks away from the shaft of a writing brush (20) the inner chamber lower end bulge loop (21), described inner sliding sleeve (30) stretches into down the shaft of a writing brush (10) inner chamber and contacts mutually with pen core (50) tail end from flange (12) end slidably, and stretch into that the end is provided with can not be from the outward flange (32) of disengaging the shaft of a writing brush (10) flange (12) down.

2, flexible pen according to claim 1 is characterized in that described fixture block (35) is provided with the protruding level of a scalariform (351), and this protruding level (351) can be suitable and identical with the hole clipping (24,23) at the last shaft of a writing brush (20) chute (22) two ends under user mode.

3, flexible pen according to claim 1 and 2 is characterized in that the described shaft of a writing brush (20) of going up is arranged with pen clip (60), is resisted against on the lateral surface of the shaft of a writing brush (20) intermediate plate (61) one ends on the pen clip (60).

4, flexible pen according to claim 3, the intermediate plate (61) that it is characterized in that described pen clip can correspondence be arranged at directly over the chute (22) of the shaft of a writing brush (20), and on intermediate plate (61), establish a guide groove (62), depression bar (40) one ends are stretched into fixture block (35) from guide groove (62) and chute (22) link to each other, its other end is positioned on the outer edge surface of intermediate plate (61) guide groove (62).

5, flexible pen according to claim 4 is characterized in that described depression bar (40) is the button spike, and major part is positioned on the outer edge surface of guide groove (62), and the microcephaly links together with tight fit or the mode that is threaded and fixture block (35).

6, flexible pen according to claim 1 and 2 is characterized in that described pen core (50) protuberance is the platform level face in the big footpath of pen core.

7, flexible pen according to claim 1 and 2 is characterized in that the described shaft of a writing brush (10) down divides big footpath and path (11) two parts, and an end in big footpath links to each other with nib pipe (13), and path (11) can stretch into the shaft of a writing brush (20) inner chamber.

8, flexible pen according to claim 1 and 2, it is characterized in that described inner sliding sleeve (30) divides big directly (33) and path (31) two parts, path (31) can stretch into down the shaft of a writing brush (10) inner chamber, and described fixture block hole (34) promptly is positioned on the big footpath (33) of inner sliding sleeve (30).

9, flexible pen according to claim 1 and 2 is characterized in that the described shaft of a writing brush (10) down is connected with the slotting formula close-fitting of being connected to of nib pipe (13) or is threaded.

10, flexible pen according to claim 3 is characterized in that the described shaft of a writing brush (10) down divides big footpath and path (11) two parts, and an end in big footpath links to each other with nib pipe (13), and path (11) can stretch into the shaft of a writing brush (20) inner chamber.