CN102529509A - Writting tool - Google Patents
Writting tool Download PDFInfo
- Publication number
- CN102529509A CN102529509A CN2011103070089A CN201110307008A CN102529509A CN 102529509 A CN102529509 A CN 102529509A CN 2011103070089 A CN2011103070089 A CN 2011103070089A CN 201110307008 A CN201110307008 A CN 201110307008A CN 102529509 A CN102529509 A CN 102529509A
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- Prior art keywords
- smis
- axle
- front axle
- core support
- cam surface
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
A writting tool (1) is capable of sending out a central core (2) inserted into a shaft barrel (5) comprising a front shaft (3) and a rear shaft (4), and comprises a front shaft unit (10) which is rotatably and freely connected to the rear shaft (4). The front shaft unit (10) comprises: a front shaft (3) which is rotatably and freely connected to a rear shaft (4) and has a cam surface (14) formed by extending along a circumferential direction at an inner wall surface; a central core support (11) inserted into the front shaft (3), wherein the central core support (11) performs reciprocating motion along an axis direction in the front shaft (3) and forms a following part (16) which is protruded towards an outer wall surface and slidable on the cam surface (14); and a spring part (17) used for pushing the following part (16) of the central core support (11) onto the cam surface (14) of the front shaft (3). By adopting the above structure, design of the rear shaft (4) is easy to be changed, thus design freedom of the rear shaft (4) can be raised.
Description
Technical field
The present invention relates to see off the writing appliance of 1 SMIS through the rotation of beam barrel.
Background technology
In the past, as the technology in this kind field, known had Japanese Utility Model to register communique No. 2555673.The writing appliance that this communique is put down in writing is to rotate advancement-type; And be constituted as: when rotating rear axle with respect to front axle; The driver part that is configured in the rear axle makes pen core support (refill holder) move forward and backward while rotate, thereby makes the front end that remains on the interior pen core of pen core support stretch out/regain from the front end of front axle.As the delivering mechanism of this writing appliance, cam and cam base can't link through the projection that is arranged on the cam periphery rotationally, and on cam and cam base, have formed spiral helicine cam path.
With respect to this, the outer peripheral face of pen core support be formed be used for spiral helicine cam path in the work package that engages.And through rotating rear axle, cam path rotates thereupon, via the work package that is inserted in this cam path, and pen core support forward/backward in beam barrel.Because pen core (SMIS) is fixed on the pen core support, therefore through the forward or reverse rear axle, the front end that can make pen core stretches out/regains from the front end of front axle.
Yet; In above-mentioned existing writing appliance; Because the pen core delivering mechanism is installed in rear axle; Therefore when this by the design of rear axle, for example rear axle is formed complicated shape or change when being arranged at the pen clip etc. of rear axle, can receive the influence of the size and dimension of pen core delivering mechanism, so have the low problem of design freedom of rear axle.
Summary of the invention
The object of the present invention is to provide a kind of writing appliance that improves the design freedom of rear axle.
The present invention relates to a kind of writing appliance; Can see 1 SMIS that is inserted in the beam barrel that comprises front axle and rear axle off; It is characterized in that; Rotating the fore axle unit that is linked to rear axle freely comprises: front axle, and its rotation is linked to rear axle freely, and has at internal face along circumferentially extending the cam surface that forms; Middle core support, it is inserted in the front axle, and in front axle, moves back and forth along axis direction, and said SMIS support forms the servo-actuated portion that oriented outside wall surface is outstanding and on cam surface, slide; And spring portion, its servo-actuated portion with middle core support is pressed on the cam surface of front axle.
In addition, as the another side of the writing appliance that the present invention relates to, can be a kind of writing appliance also, it is characterized in that, comprising: rear axle, it constitutes a side of beam barrel; Front axle, it constitutes the opposing party of beam barrel, and has the cam surface that forms along circumferential extension at internal face, and the front axle rotation is linked to rear axle freely; SMIS, it is inserted in the beam barrel, and its front end can stretch out/regain in beam barrel; In core support, it is inserted in the front axle, and in front axle, moves back and forth along axis direction, and middle core support has servo-actuated portion, servo-actuated portion is formed from outside wall surface outstanding, and on cam surface, slides; Spring portion, its servo-actuated portion with middle core support is pressed on the cam surface of front axle.
Above-mentioned writing appliance has adopted the fore axle unit that the SMIS delivering mechanism is installed in front axle.In this writing appliance, when rotating front axle, circumferentially extend the cam surface that forms on the internal face edge of front axle and rotate when relative rear axle.And, is arranged on by the servo-actuated portion in the middle core support of the spring portion application of force and follows along the cam surface that circumferentially moves and move back and forth, thereby middle core support moves back and forth along axis direction along axis direction.Move back and forth through middle core support, the front end that can make SMIS stretches out/regains from the front end of front axle.Therefore,, be easy to change the design of rear axle, can improve the design freedom of rear axle through in writing appliance, adopting the fore axle unit that possesses the SMIS delivering mechanism.
The writing appliance that the present invention relates to can also comprise shackle, and the internal face of this shackle and rear axle is chimeric, and to be installed in the rear end of the outside wall surface of front axle along the circumferential state that rotates freely.Through such shackle, can stably rotate front axle, can also be as the parts that fore axle unit and rear axle are linked reliably.
The writing appliance that the present invention relates to also can so that: front axle comprise through screw thread combine can two minutes preceding oral area and support resettlement section; As the helical spring of spring portion be set at be installed in the core support SMIS around; Helical spring front end is limited to preceding oral area; Helical spring rear end is limited to SMIS, and the rear end of SMIS is restricted in middle core support.In such formation, the preceding oral area through the rotated front axle makes it separate from the support resettlement section, can with SMIS with helical spring therefrom core support extract out.According to this formation, can carry out SMIS from the front side of writing appliance and change, the replacing operation of SMIS becomes easy.
In writing appliance of the present invention; Cam surface also can have guide surface and end recess with card; Guide surface extends to the top as SMIS outstanding position in the beam barrel obliquely from the paddy portion as the SMIS disappearance position in beam barrel; Card ends recess and is formed on the top, and servo-actuated portion can fall into only recess of card.
In writing appliance of the present invention also can so that: cam surface is at two positions that upwards are formed on internal face week with the phase angle of 180 degree, two positions of servo-actuated portion outside wall surface of core support in upwards being formed on the phase angle of 180 degree in week.
In writing appliance of the present invention also can so that: middle core support has the slit that extends along axis direction, and rear axle has radially outstanding anti-blade, and anti-blade enters in the slit.
In writing appliance of the present invention also can so that: front axle have through screw thread combine can two minutes preceding oral area and support resettlement section, cam surface is formed on the internal face of support resettlement section.
The invention effect
According to the present invention, can improve the design freedom of rear axle.
Description of drawings
Fig. 1 illustrates the stereogram that the present invention writes an embodiment of apparatus;
Fig. 2 is the stereogram that the state that fore axle unit is separated with rear axle is shown;
Fig. 3 is the cutaway view of writing appliance shown in Figure 1;
Fig. 4 is the exploded perspective view of writing appliance shown in Figure 1;
Fig. 5 A is the cutaway view with support resettlement section of cam surface, and Fig. 5 B is the expanded view of cam surface.
The specific embodiment
Below, with reference to accompanying drawing, explain that at length the present invention writes the preferred implementation of apparatus.Below, the nib side is described as " front side ".
As depicted in figs. 1 and 2, writing appliance 1 is to rotate advancement-type, can stretch out/regain SMIS 2 through the rotation of beam barrel 5.This beam barrel 5 comprises front axle 3 and rear axle 4, has formed pen clip 6 at rear axle 4.
In the front axle 3 of the fore axle unit 10 that links rotationally with respect to rear axle 4, the SMIS delivering mechanism is installed.In this fore axle unit 10, taken in SMIS 2, this SMIS 2 can be changed from the front side of writing appliance 1.
Like Fig. 2～shown in Figure 4, fore axle unit 10 comprise cylindraceous in core support 11 with may be partitioned into two-part front axle 3, during SMIS 2 is installed in the core support 11.Front axle 3 be included in the rear portion be formed with external thread part 12a cone shape preceding oral area 12 and forwardly be formed with the support resettlement section 13 of internal thread part 13a.Through oral area 12 before taking off, can SMIS 2 be fetched into the outside, thus replaceable SMIS 2.
Support cylindraceous resettlement section 13 comprises large-diameter portion 13c that is positioned at the front side and the minor diameter part 13d that is positioned at rear side.Be formed with internal thread part 13a at large-diameter portion 13c, the outer surface of the outer surface of large-diameter portion 13c and preceding oral area 12 is continuous, and exposes to the outside of writing portion 1.With respect to this, minor diameter part 13d is inserted in the rear axle 4, does not expose to the outside of writing portion 1.
On the outside wall surface 11a of the middle core support 11 that connects support resettlement section 13, be formed with the servo-actuated portion 16 of on cam surface 14, sliding.The front end of core support 11 is formed with flange part 11b in this, and servo-actuated portion 16 is key shape from flange part 11b to axis L direction at the outside wall surface 11a of middle core support 11 and extends.Upwards two servo-actuated portions 16 have been formed in week with the phase angle of 180 degree.
In order to make the sliding on cam surface 14 good, formed semicircular sliding contacting part 16a (with reference to figure 5A and Fig. 5 B) at the end face of servo-actuated portion 16.And middle core support 11 moves back and forth on axis L direction along with moving of servo-actuated portion 16.
In addition, around SMIS 2, be provided with compression helical spring (spring portion) 17, be used for the sliding contacting part 16a of servo-actuated portion 16 is continued to be pressed to cam surface 14 all the time.The front end of this compression helical spring 17 is limited at preceding oral area 12 and forms step-like spring abutting part 12b, and the rear end of compression helical spring 17 is limited to spring abutting part midway (wave portion) 2a that is formed on SMIS 2.The aft bulkhead 11c restriction of moving core support 11 in the quilt backward of the rear end of SMIS 2.Therefore,, can centering core support 11 be continuously applied the rearward application of force, and can the sliding contacting part 16a of servo-actuated portion 16 continued all the time press against on the cam surface 14 through compression helical spring 17.
In addition, be provided with shackle 18, can fore axle unit 10 and rear axle 4 be rotated binding freely through this shackle 18 at fore axle unit 10.Anticreep pawl 22 on the rear end of the minor diameter part 13d of this shackle 18 through being formed on support resettlement section 13 is limited on the support resettlement section 13, and is entrenched in the rear end side of upwards rotating the outside wall surface of the minor diameter part 13d that is installed in support resettlement section 13 freely week from the front of anticreep pawl 22.
As shown in Figure 2, be set side by side with the protuberance 18a of ring-type at the outer surface of shackle 18, this protuberance 18a be used for the internal face 4a that is formed on rear axle 4 on the recess 4b of ring-type chimeric.When assembling writing appliance 1, if fore axle unit 10 is inserted in the rear axle 4 along axis L direction, it is just chimeric with recess 4b that then the protuberance 18a of shackle 18 clicks (one touch).
In addition, be formed with upwardly extending slit 20, be formed with radially outstanding anti-blade 21 at the internal face 4a of rear axle 4 in axis L side in the rearward end of middle core support 11.And, enter in the slit 20 of core support 11 rectilinear motion of the axis L direction of core support 11 in the rotation of core support 11 and the realization in can preventing through anti-blade 21.
Shown in Fig. 5 A and Fig. 5 B, the internal face 13b in support resettlement section 13 is formed with the cam surface 14 that extends along circumferentially.Be provided with guide surface 14c at this cam surface 14 and end recess 14d with card; This guide surface 14c tilts to extend to the napex 14b of uppermost position in fig-ure (extrusion position of SMIS) from the lowest point 14a of upper/lower positions (retracted position of SMIS), and this card only recess 14d is formed on the top 14b of guide surface 14c and can supplies the sliding contacting part 16a of servo-actuated portion 16 to fall into.Such cam surface 14 circumferentially is formed on two positions with the phase angle of 180 degree in the internal face 13b upper edge of support resettlement section 13.Corresponding to this, servo-actuated portion 16 also is formed on two positions along circumferential phase angle with 180 degree at the outside wall surface 11a of middle core support 11.
In the writing appliance 1 that so constitutes, shown in the arrow A of Fig. 1, when rotating front axle 3 with respect to rear axle 4 with the mode of twisting, the cam surface 14 that is formed on the internal face of front axle 3 rotates with front axle 3.And the servo-actuated portion 16 in the middle core support 11 that is compressed helical spring 17 application of forces of being arranged on follows along the cam surface 14 that circumferentially moves and on axis L direction, moves back and forth, thus in core support 11 on axis L direction, move back and forth.Move back and forth through middle core support 11, the front end that can make SMIS 2 stretches out/regains from the front end of front axle 3.
When the user twists front axle 3, servo-actuated portion 16 along the guide surface 14c that constitutes the inclined-plane from the lowest point 14a 14b moves at axis direction towards the top.At this moment, compression helical spring 17 is continued compression, and is final, and the sliding contacting part 16a of servo-actuated portion 16 drops into card to be ended in the recess 14d above top 14b, and the front end of SMIS 2 is outstanding from front axle 3, becomes the state of can writing.Then, thereby cross card only during recess 14d as the reverse sliding part 16a that twists front axle 3 servo-actuated portions 16, through the elastic force of compression helical spring 17, servo-actuated portion 16 is landing on guide surface 14c quickly, thereby can the front end of SMIS 2 be hidden into rapidly in the front axle 3.
So, comprise the fore axle unit 10 of front axle 3, middle core support 11 and compression helical spring 17, can the center of gravity when writing move to front axle 3 sides, be easy to change the design of rear axle 4, can improve the design freedom of rear axle 4 through employing.
In addition, when changing SMIS 2, make its 13 separation from the support resettlement section if rotate the preceding oral area 12 of front axle 3, then can be with SMIS 2 with therefrom core support's 11 extractions of compression helical spring 17.So, can change SMIS 2 from the front side of writing appliance 1, the replacing operation of SMIS 2 becomes easy.
Claims (10)
1. a writing appliance can be seen 1 SMIS that is inserted in the beam barrel that comprises front axle and rear axle off, it is characterized in that,
Rotating the fore axle unit that is linked to said rear axle freely comprises:
Said front axle, its rotation is linked to said rear axle freely, and has at internal face along circumferentially extending the cam surface that forms;
Middle core support, it is inserted in the said front axle, and in said front axle, moves back and forth along axis direction, and said SMIS support forms the servo-actuated portion that oriented outside wall surface is outstanding and on said cam surface, slide; And
Spring portion, its said servo-actuated portion with core support in said is pressed on the said cam surface of said front axle.
2. writing appliance according to claim 1 is characterized in that,
Also comprise shackle, the internal face of said shackle and said rear axle is chimeric, and to be installed in the rear end of the outside wall surface of said front axle along the circumferential state that rotates freely.
3. writing appliance according to claim 1 and 2 is characterized in that,
Said front axle comprise through screw thread combine can two minutes preceding oral area and support resettlement section; As the helical spring of said spring portion be set at be installed to said in the core support said SMIS around; Said helical spring front end is limited to said preceding oral area; Said helical spring rear end is limited to said SMIS, and the rear end of said SMIS is restricted in the core support in said.
4. a writing appliance is characterized in that, comprising:
Rear axle, it constitutes a side of beam barrel;
Front axle, it constitutes the opposing party of said beam barrel, and has the cam surface that forms along circumferential extension at internal face, and the rotation of said front axle is linked to said rear axle freely;
SMIS, it is inserted in the said beam barrel, and its front end can stretch out/regain in said beam barrel;
In core support, it is inserted in the said front axle, and in said front axle, moves back and forth along axis direction, and core support has servo-actuated portion in said, said servo-actuated portion is formed from outside wall surface outstanding, and on said cam surface, slides;
Spring portion, its said servo-actuated portion with core support in said is pressed on the said cam surface of said front axle.
5. writing appliance according to claim 4 is characterized in that,
Also comprise shackle, the internal face of said shackle and said rear axle is chimeric, and to be installed in the rear end of the outside wall surface of said front axle along the circumferential state that rotates freely.
6. according to claim 4 or 5 described writing appliances, it is characterized in that,
Said front axle have through screw thread combine can two minutes preceding oral area and support resettlement section,
Said spring portion is a helical spring, said helical spring be set at be installed to said in the core support said SMIS around,
Said helical spring front end is limited to said preceding oral area, and said helical spring rear end is limited to said SMIS, and moving in said on the axis direction of the rear end of said SMIS is limited in the core support.
7. according to each described writing appliance in the claim 4 to 6, it is characterized in that,
Said cam surface has guide surface and ends recess with card; Said guide surface extends to the napex as said SMIS outstanding position in the said beam barrel obliquely from the paddy portion as the position of said SMIS disappearance in said beam barrel; Said card ends recess and is formed on said top, and said servo-actuated portion can fall into said card and ends recess.
8. according to each described writing appliance in the claim 4 to 7, it is characterized in that,
Said cam surface is at two positions that upwards are formed on said internal face week with the phase angle of 180 degree,
Said servo-actuated portion upwards be formed in week with the phase angle of 180 degree said in two positions of said outside wall surface of core support.
9. according to each described writing appliance in the claim 4 to 8, it is characterized in that,
Core support has the slit that extends along axis direction in said,
Said rear axle has radially outstanding anti-blade,
Said anti-blade enters in the said slit.
10. according to each described writing appliance in the claim 4 to 9, it is characterized in that,
Said front axle have through screw thread combine can two minutes preceding oral area and support resettlement section,
Said cam surface is formed on the internal face of said support resettlement section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-226875 | 2010-10-06 | ||
| JP2010226875A JP5496046B2 (en) | 2010-10-06 | 2010-10-06 | Writing instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102529509A true CN102529509A (en) | 2012-07-04 |
| CN102529509B CN102529509B (en) | 2014-11-12 |
Family
ID=46240997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110307008.9A Active CN102529509B (en) | 2010-10-06 | 2011-10-08 | Writting tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5496046B2 (en) |
| CN (1) | CN102529509B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781085A (en) * | 2012-09-24 | 2015-07-15 | 株式会社百乐 | Rotary operated writing instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379316Y (en) * | 1999-06-25 | 2000-05-24 | 刘沧镇 | Pena able to be replacing its core and pen tube conveniently |
| US20050147456A1 (en) * | 2004-01-07 | 2005-07-07 | Andrews Neville E. | Advancing/retracting mechanism |
| JP3779120B2 (en) * | 2000-02-29 | 2006-05-24 | 株式会社島田製作所 | Centering mechanism |
| CN200939759Y (en) * | 2006-06-19 | 2007-08-29 | 刘见明 | Extension regulation set for rotary extensible pen |
| JP2007283537A (en) * | 2006-04-13 | 2007-11-01 | Pilot Corporation | Rotary projection type writing implement |
| JP2009535233A (en) * | 2006-04-28 | 2009-10-01 | モリス コーポレーション | Sliding writing instrument with dry prevention device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615745Y2 (en) * | 1988-04-25 | 1994-04-27 | 三菱鉛筆株式会社 | Rotary feeding type compound writing instrument |
| JP3368366B2 (en) * | 1994-02-25 | 2003-01-20 | 三菱鉛筆株式会社 | Writing implement with seal |
| JP2001158197A (en) * | 1999-12-03 | 2001-06-12 | Iwasaki Kinzoku Kogyo Kk | Delivery-type writing tool or makeup tool |
| JP2009178940A (en) * | 2008-01-31 | 2009-08-13 | Pentel Corp | Retractable writing implement with built-in electronic circuit |
-
2010
- 2010-10-06 JP JP2010226875A patent/JP5496046B2/en active Active
-
2011
- 2011-10-08 CN CN201110307008.9A patent/CN102529509B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379316Y (en) * | 1999-06-25 | 2000-05-24 | 刘沧镇 | Pena able to be replacing its core and pen tube conveniently |
| JP3779120B2 (en) * | 2000-02-29 | 2006-05-24 | 株式会社島田製作所 | Centering mechanism |
| US20050147456A1 (en) * | 2004-01-07 | 2005-07-07 | Andrews Neville E. | Advancing/retracting mechanism |
| JP2007283537A (en) * | 2006-04-13 | 2007-11-01 | Pilot Corporation | Rotary projection type writing implement |
| JP2009535233A (en) * | 2006-04-28 | 2009-10-01 | モリス コーポレーション | Sliding writing instrument with dry prevention device |
| CN200939759Y (en) * | 2006-06-19 | 2007-08-29 | 刘见明 | Extension regulation set for rotary extensible pen |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781085A (en) * | 2012-09-24 | 2015-07-15 | 株式会社百乐 | Rotary operated writing instrument |
| CN104781085B (en) * | 2012-09-24 | 2016-12-28 | 株式会社百乐 | Rotary operation type writing implement |
| US9630444B2 (en) | 2012-09-24 | 2017-04-25 | Kabushiki Kaish Pilot Corporation | Rotating-operation type of writing tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102529509B (en) | 2014-11-12 |
| JP5496046B2 (en) | 2014-05-21 |
| JP2012081587A (en) | 2012-04-26 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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