CN1919618A - Writing implement including stick material pushing mechanism - Google Patents
Writing implement including stick material pushing mechanism Download PDFInfo
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- CN1919618A CN1919618A CN 200510092184 CN200510092184A CN1919618A CN 1919618 A CN1919618 A CN 1919618A CN 200510092184 CN200510092184 CN 200510092184 CN 200510092184 A CN200510092184 A CN 200510092184A CN 1919618 A CN1919618 A CN 1919618A
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- shaped material
- club
- pen tube
- writing
- bar body
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a writing tool with bar-shaped pushing mechanism, which comprises the following parts: external pen pipe, lead-filled supplying mechanism in the external pen pipe and bar-shaped material pushing mechanism to connect rear of lead-filled supplying mechanism, wherein the inner screw is formed on the inner peripheral surface behind the lead cylinder of lead-filled supplying mechanism, the bar-shaped material pushing mechanism consists knocking cap and bar-shaped tray, wherein the knocking cap connects lead supplying mechanism to rotate, the tray fixes the bar-shaped material, which forms external screw entire in the inner screw of cylinder.
Description
Technical field
The present invention relates to a kind of writing appliance that comprises stick material pushing mechanism.
Background technology
Usually, as this writing appliance is known the real writing appliance of opening described in flat No.5-45513 and the Japanese kokai publication hei No.4-25499 of Japan for example arranged.
In the propelling pencil described in Japan opens flat No.5-45513 in fact, writing bar body (writingshaft body) is arranged in the outer pen tube (outer barrel), in the inner surface at cylindrical shape cap for brush rear portion, be provided with helicla flute, the rear portion of cylinder body connects rotating relatively with the cylindrical shape cap for brush, rear portion at cylinder body is provided with slit, the rubber carriage is assemblied in the slit slidably, in the protuberance precession helicla flute that on the rubber carriage, is provided with, and the front portion of cylinder body can be connected on this outer pen tube and can separate with this outer pen tube, and it can move axially relatively and can not rotate relatively vertically.
In the propelling pencil described in the Japanese kokai publication hei No.4-25499, writing body is arranged in the outer pen tube, on the inner peripheral surface of the lead core tube rear end of writing body, be formed with protuberance, on as the fixture of rubber carriage, form elongated slot and the thread groove that cooperates with protuberance, the screw thread protuberance that cooperates with the thread groove of fixture is formed on the interior perimeter surface of turnbarrel, and turnbarrel is installed in the rear end part of lead core tube rotating relatively.
In above-mentioned each document, the rubber by the rubber bracket support utilizes the relative rotation between outer pen tube and the rear pen tube can the outstanding and withdrawal from the rear end of rear pen tube.
Yet, in last document, the quantity of member is too much, and in two pieces of documents, rubber carriage and rear pen tube screw mutually, and the rubber that is fixed in the rubber carriage is being pushed into the counterrotating while of rear pen tube, have therefore produced following problems: rubber contacts the distance of slip with the inner peripheral surface of rear pen tube long with respect to the push-in stroke of this rubber, therefore, operating efficiency is low.
Summary of the invention
In view of the above-mentioned of traditional structure and other defective, disadvantage and problem, the purpose of this invention is to provide a kind of writing appliance that comprises stick material pushing mechanism, it can advance club-shaped material and have a small amount of member and this club-shaped material does not have relative rotation with rear pen tube.
To achieve these goals, innovation part of the present invention is to provide a kind of writing appliance, and it comprises: outer pen tube; The writing bar body, it is arranged in this outer pen tube; Stick material pushing mechanism, the rear portion that it is connected in this writing bar body is characterized in that:
This writing bar body has the part that forms internal thread on interior perimeter surface, and this part can be rotated relatively with outer pen tube; And
Described stick material pushing mechanism comprises: rear pen tube, and it is connected to this writing bar body rotating relatively; And the club-shaped material carriage, it can not rotate relatively vertically in this rear pen tube but can slide, and fixing club-shaped material; And integrally form external screw thread on this club-shaped material carriage, it screws in the internal thread of this writing bar body.
Described club-shaped material carriage can comprise fixed part, and this fixed part fixedly club-shaped material and can being assemblied in slidably is formed in the rear pen tube in the cannelure on the perimeter surface.
The terminal part of club-shaped material carriage can be provided with and not form externally threaded part, and does not form on the externally threaded part at this and to form slit.
Can form the centre bore that communicates with the centre bore of this writing bar body in this club-shaped material carriage, it runs through this club-shaped material carriage.
Preferably, by removing club-shaped material, can insert lead for retractable pencil from rear side from this club-shaped material carriage.
According to the present invention, in the operation that advances club-shaped material, rear pen tube rotates with respect to outer pen tube, therefore, can not and can not produce relative rotation between the writing bar body with respect to the outer pen tube rotation with respect to the club-shaped material carriage of rear pen tube rotation.The external screw thread of club-shaped material carriage is by the internal thread guiding of writing bar body, and the club-shaped material carriage is mobile vertically in rear pen tube, has so just promoted club-shaped material.Because the club-shaped material carriage can not rotate relatively with rear pen tube, so club-shaped material does not have relative rotation with rear pen tube, and with respect to rear pen tube by linear advancement.Therefore, can effectively improve operating efficiency.And this writing appliance can be made of a small amount of member.
Description of drawings
Fig. 1 is the whole longitudinal sectional view according to the propelling pencil of the specific embodiment of the invention;
Fig. 2 illustrates the relation between lead core tube and the stick material pushing mechanism and the exploded perspective view of outer pen tube;
Fig. 3 is the cutaway view of the line 3-3 in Fig. 1;
Fig. 4 is the longitudinal sectional view of lead core tube rearward end;
Fig. 5 is the stereogram of club-shaped material carriage; And
Fig. 6 is the cutaway view (having omitted pen clip among the attention figure) of the line 6-6 in Fig. 1.
The specific embodiment
The preferred embodiments of the present invention will be described in detail as follows with reference to the accompanying drawings.
In the accompanying drawings, Reference numeral 10 representatives are as the propelling pencil of writing appliance, and propelling pencil 10 generally includes: outer pen tube 12; For plumbous mechanism 14, it is for supplying with the writing bar body that is positioned over the lead for retractable pencil in the outer pen tube 12; Stick material pushing mechanism 16, it is connected to rear portion that supplies plumbous mechanism 14 and the back that is arranged on outer pen tube 12.
In the example illustrated in the accompanying drawings, outer pen tube 12 is Unitarily molded product, but described outer pen tube 12 also can be made of a plurality of members.
Be arranged in the outer pen tube 12 for plumbous mechanism 14.The plumbous mechanism 14 of this confession comprises: the lead core tube 20 that holds lead for retractable pencil; Chuck 22, its end that is fixed on lead core tube 20 is to clamp and to supply with lead for retractable pencil; Locking strap 24, it is arranged on the outer peripheral face of chuck 22 with clamping collet 22; Sleeve 26, it is used to limit the withdrawal of locking strap 24; And back-moving spring 28, it is arranged between the front end of the front end of sleeve 26 and lead core tube 20.Sleeve 26 has the bonding pad 26a that matches with the opening of formation in the outer pen tube 12, so that sleeve 26 is fixed in outer pen tube 12.Back-moving spring 28 pushes lead core tube 20 backward and is fixed on chuck 22 on the lead core tube 20.
As shown in Figures 2 and 3, on the outer surface of lead core tube 20, along the circumferential direction be formed with at certain intervals along the outstanding a plurality of projecting part 20c of external diameter direction, and each projecting part 20c is assembled among the cannelure 12a that is formed on the outer pen tube 12 interior perimeter surface slidably.This makes lead core tube 20 can not rotate relatively vertically with outer pen tube 12 but can slide relatively vertically.The present invention is not limited to make the lead core tube 20 can not be with respect to the projecting part 20c of outer pen tube 12 rotations and the structure of cannelure 12a, and longitudinal rib shape portion can be set on the interior perimeter surface of outer pen tube 12, and can on the outer surface of lead core tube 20, cannelure be set, perhaps, the outer surface of the interior perimeter surface of outer pen tube 12 and lead core tube 20 can form the polygonal shape that cooperatively interacts.
In addition, as shown in Figure 4, on the interior perimeter surface of lead core tube 20 rearward end, form the short outstanding ridge (spiral short protruding ridge) of spirality, and should outstanding ridge be internal thread 20a.
As shown in Figure 1, stick material pushing mechanism 16 comprises: knock cap (knockcap) 30 as rear pen tube; And club-shaped material carriage 32, its fixing rubber 34 as club-shaped material.Knock cap 30 and have annular recesses parts 30a, it matches with annular protuberance 20b on the outer surface that is formed at lead core tube 20 rearward end, therefore knocks rear portion that cap 30 is connected in lead core tube 20 rotating relatively vertically but can not move axially relatively.As shown in the drawing, the end that knocks cap 30 can be positioned at the rear of outer pen tube 12 rear ends, but the present invention is not limited thereto, the end that knocks cap 30 also can be positioned at the place ahead of the rear end of outer pen tube 12, promptly, knock cap 30 and can cover and coat the rearward end of outer pen tube 12, perhaps knock cap 30 and can insert in the rearward end of outer pen tube 12.
Knock on the interior perimeter surface at rear portion of cap 30 and be formed with a pair of cannelure 30b (see figure 6) that stretches vertically.
As shown in Figure 5, club-shaped material carriage 32 comprises: fixed part 32a, and it is used for fixing rubber 34; And external screw thread axle 32b, it stretches forward from fixed part 32a.Fixed part 32a is made of a pair of clamping plate (sandwiching piece) 32c, and this is clipped in rubber 34 between them clamping plate 32c, and clamping plate 32c is assembled among the cannelure 30b that knocks cap 30 vertically slidably.Among the internal thread 20a of the external screw thread 32d precession lead core tube 20 of external screw thread axle 32b.
The slit 32e of the Yan Shening terminal part that is formed at external screw thread axle 32b does not basically exist in the zone of external screw thread 32d vertically.In the example in the accompanying drawings, the quantity of slit 32e is one, but the quantity of slit is not limited thereto, and two or more slits can be set.When the rearward end of inserting lead core tube 20 as the external screw thread axle 32b of club-shaped material carriage 32 is connected to lead core tube 20 with stick material pushing mechanism 16 with in assembling the time, the elasticity of slit 32e allows that the terminal part of external screw thread axle 32b passes the internal thread 20a of lead core tube 20, thereby external screw thread axle 32b can be connected in the rear end of lead core tube 20 at an easy rate.External screw thread axle 32b does not exist the part of external screw thread 32d to be used to prevent that as backstop club-shaped material carriage 32 from falling from lead core tube 20.
Run through the centre bore 32f of external screw thread axle 32b vertically and communicate, and also communicate with the centre bore of lead core tube 20 with the fixing fixed part 32a of rubber 34.
In the propelling pencil 10 of as above constructing, in the operation that advances rubber 34, knock cap 30 relative outer pen tube 12 rotations, can not and can not produce relative rotation between the lead core tube 20 with respect to outer pen tube 12 rotations with respect to the club-shaped material carriage 32 that knocks cap 30 rotations thus.The external screw thread 32d of club-shaped material carriage 32 is by the internal thread 20a guiding of lead core tube 20, and club-shaped material carriage 32 is mobile vertically in knocking cap 30, promotes rubber 34 thus.Because club-shaped material carriage 32 with knock cap 30 and can not rotate relatively, so rubber 34 with respect to knocking cap 30 rotations, and stretches out (fed out) with respect to knocking cap 30 linearly.Therefore, can improve operating efficiency.
When supplying with the operation of lead for retractable pencil, knock this with respect to outer pen tube 12 and knock cap 30, be thus connected the lead core tube 20 that knocks cap 30 and move forward and make lead for retractable pencil to stretch out.
When recharging the operation of lead for retractable pencil, by removing rubber 34, the centre bore 32f of club-shaped material carriage 32 is communicated with lead core tube 20 from club-shaped material carriage 32, therefore, lead for retractable pencil can be recharged in the lead core tube 20 by the center of club-shaped material carriage 32.For the ease of the connection between rubber 34 and the club-shaped material carriage 32 with separate, preferably, the fixed part 32a of club-shaped material carriage 32 is not very big to the bed knife of rubber 34.Because by knocking the load that cap 30 is applied on the rubber 34 is very little when rubber stretches out, so little bed knife also is what it doesn't matter.
Like this, in the above-described embodiments, described propelling pencil is made of a small amount of member, and therefore, described propelling pencil can be with the low cost manufacturing.Yet in the above-described embodiments, the described member that is made of single element can be made of a plurality of members, otherwise the described member that is made of a plurality of members also can be made of solid memder.
The foregoing description is described as an example with propelling pencil, but this embodiment is not limited thereto, and the present invention can be applied on the various writing appliances such as ball pen etc.This club-shaped material also is not limited to rubber, its can for such as write lead for retractable pencil, wipe rod, the various club-shaped materials of fluorescence pen core etc.
Although the present invention is described according to several preferred embodiments, those of skill in the art recognize that in the spirit and scope of appended claims and can make amendment the present invention.
Claims (5)
1. writing appliance comprises:
Outer pen tube;
The writing bar body, it is arranged in this outer pen tube, and described writing bar body has the female part of formation on interior perimeter surface, and this part can be rotated relatively with this outer pen tube;
Stick material pushing mechanism, it is connected to the rear portion of this writing bar body, and described stick material pushing mechanism comprises:
Rear pen tube, it is connected to this writing bar body and can rotates relatively; And
The club-shaped material carriage, it can not rotate vertically with respect to this rear pen tube but can slide vertically with respect to this rear pen tube, and is used for fixing club-shaped material; And
Wherein, integrally be formed with external screw thread on this club-shaped material carriage, it screws in the internal thread of this writing bar body.
2. writing appliance as claimed in claim 1, wherein said club-shaped material carriage includes fixed part, and this fixed part is fixed described club-shaped material, and is assemblied in slidably in the cannelure that is formed on the interior perimeter surface of this rear pen tube.
3. writing appliance as claimed in claim 1 wherein is provided with at the terminal part of this club-shaped material carriage and does not form externally threaded part, and is formed with slit described formation in the externally threaded part.
4. writing appliance as claimed in claim 1 wherein forms centre bore in described club-shaped material carriage, its centre bore with this writing bar body communicates and connects described club-shaped material carriage.
5. writing appliance as claimed in claim 1 wherein by removing described club-shaped material from this club-shaped material carriage, can insert lead for retractable pencil from rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510092184 CN1919618A (en) | 2005-08-22 | 2005-08-22 | Writing implement including stick material pushing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510092184 CN1919618A (en) | 2005-08-22 | 2005-08-22 | Writing implement including stick material pushing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1919618A true CN1919618A (en) | 2007-02-28 |
Family
ID=37777515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510092184 Pending CN1919618A (en) | 2005-08-22 | 2005-08-22 | Writing implement including stick material pushing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1919618A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209641A (en) * | 2008-10-03 | 2011-10-05 | 毕克有限公司 | Retractable-point writing implement |
| CN101970248B (en) * | 2008-01-16 | 2012-05-30 | 毕克有限公司 | Writing instrument with eraser protected by a sleeve |
| US10272714B2 (en) | 2016-12-06 | 2019-04-30 | Sanford L.P. | Anti-rotation extendable eraser mechanism |
-
2005
- 2005-08-22 CN CN 200510092184 patent/CN1919618A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970248B (en) * | 2008-01-16 | 2012-05-30 | 毕克有限公司 | Writing instrument with eraser protected by a sleeve |
| CN102209641A (en) * | 2008-10-03 | 2011-10-05 | 毕克有限公司 | Retractable-point writing implement |
| CN102209641B (en) * | 2008-10-03 | 2014-12-31 | 毕克有限公司 | Retractable-point writing implement |
| US10272714B2 (en) | 2016-12-06 | 2019-04-30 | Sanford L.P. | Anti-rotation extendable eraser mechanism |
| USD866662S1 (en) | 2016-12-06 | 2019-11-12 | Sanford L.P. | Writing instrument |
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