JPH0514875Y2 - - Google Patents
Info
- Publication number
- JPH0514875Y2 JPH0514875Y2 JP11140287U JP11140287U JPH0514875Y2 JP H0514875 Y2 JPH0514875 Y2 JP H0514875Y2 JP 11140287 U JP11140287 U JP 11140287U JP 11140287 U JP11140287 U JP 11140287U JP H0514875 Y2 JPH0514875 Y2 JP H0514875Y2
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- lead core
- connecting member
- core case
- tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、組立作業が簡単なノツク式シヤープ
ペンシルに関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a knock-type mechanical pencil that is easy to assemble.
ノツク式シヤープペンシルは、後方に付勢され
たチヤツクがチヤツクリングに係合して締め付け
られ、鉛芯を咬持するが、チヤツクリングを受け
止める段部が必要であるので、この段部を連結部
材に形成することが多い。そして、その組立に際
しては、先ず、チヤツクをチヤツクリングに通
し、連結部材の段部を通過したチヤツクの後端を
鉛芯ケースに圧入している。そして、この組立体
を軸筒に取り付けてから軸筒の先端に先口を螺着
している。従つて、組立工程が多く、作業が煩雑
である問題点がある。
In the knock-type sharp pencil, the chuck that is biased backward engages and tightens the chuck ring, gripping the lead core, but since it requires a stepped portion to receive the chuck ring, this stepped portion is formed as a connecting member. There are many things to do. When assembling the chuck, the chuck is first passed through the chuck ring, and the rear end of the chuck, which has passed through the stepped portion of the connecting member, is press-fitted into the lead core case. After this assembly is attached to the barrel, the tip is screwed onto the tip of the barrel. Therefore, there are problems in that there are many assembly steps and the work is complicated.
そこで本考案は、組立工程が少なく、簡単に組
立ることが可能なノツク式シヤープペンシルを提
供することを目的とする。
Therefore, an object of the present invention is to provide a knock-type mechanical pencil that requires fewer assembly steps and can be easily assembled.
本考案のノツク式シヤープペンシルは、内面に
係止突起が形成された軸筒と、この軸筒内に挿入
され、外面の弾性突起が軸筒の係止突起に係合す
る先口と、この先口に螺着され、チヤツクリング
を受け止める連結部材と、連結部材の後端縁に衝
合する外段が形成され、合成樹脂製のチヤツクの
後端が圧入された鉛芯ケースと、この鉛芯ケース
と連結部材との間に介装され、チヤツクを後方に
付勢してチヤツクリングに係合させるバネとを備
え、非ノツク時において、連結部材の後端縁と鉛
芯ケースの外段との距離l1と、チヤツクの前端と
チヤツクが最も前進した時に衝合する先口の内段
との距離l2とが等しいことを特徴とするものであ
る。
The lock-type sharp pencil of the present invention has a barrel with a locking protrusion formed on its inner surface, a tip that is inserted into the barrel and has an elastic protrusion on the outer surface that engages with the locking protrusion of the barrel, and A connecting member that is screwed onto the mouth and receives a chuck ring, a lead core case in which an outer stage is formed that abuts the rear edge of the connector and the rear end of a synthetic resin chuck is press-fitted, and this lead core case. and a spring interposed between the connecting member and the chuck to urge the chuck backward to engage the chuck ring, and the distance between the rear end edge of the connecting member and the outer stage of the lead core case when the chuck is not clicked. It is characterized in that the distance l 1 is equal to the distance l 2 between the front end of the chuck and the inner stage of the tip that collides when the chuck is advanced the most.
かかる構成のノツク式シヤープペンシルの組立
方法は、先ず、チヤツクをチヤツクリングおよび
連結部材に通し、チヤツクにバネを被せてチヤツ
クの後端を鉛芯ケースに少し挿入して仮止めして
おく。そして、連結部材に先口を螺着して軸筒の
後端開口から挿入し、鉛芯ケースを前進させる。
鉛芯ケースを前進させると、チヤツクの前端が先
口の内段に衝合してチヤツクが停止するので、チ
ヤツクの後端が鉛芯ケースに確実に圧入される。
この圧入が完了すると、距離l1と距離l2とが等し
いので、鉛芯ケースの外段が連結部材の後端縁に
衝合し、先口を前進させるので、先口の弾性突起
が軸筒の係止突起に係合し、組立が完了する。す
なわち、鉛芯ケースを前進させることにより、チ
ヤツクの圧入と軸筒への組付けを同時に行うこと
ができるので、組立工程が少なく、簡単に組立る
ことが可能になる。また、チヤツクの圧入が完了
した後は、チヤツクに圧力がかからないので、強
度の低い合成樹脂製のチヤツクであつても確実に
組立ることができる。 The method for assembling a lock-type sharp pencil having such a structure is to first pass the chuck through the chuck ring and the connecting member, cover the chuck with a spring, and temporarily insert the rear end of the chuck into the lead core case to temporarily secure the chuck. Then, the tip is screwed onto the connecting member and inserted through the rear end opening of the shaft cylinder, and the lead core case is advanced.
When the lead core case is advanced, the front end of the chuck abuts against the inner stage of the tip and the chuck stops, so that the rear end of the chuck is reliably press-fitted into the lead core case.
When this press-fitting is completed, since the distance l 1 and the distance l 2 are equal, the outer stage of the lead core case abuts the rear edge of the connecting member and moves the tip forward, so that the elastic protrusion of the tip It engages with the locking protrusion on the cylinder, completing the assembly. That is, by advancing the lead core case, the chuck can be press-fitted and assembled into the barrel at the same time, so the assembly process can be reduced and the assembly can be performed easily. Moreover, since no pressure is applied to the chuck after the chuck is press-fitted, even chucks made of synthetic resin with low strength can be reliably assembled.
以下に図面に示す実施例に基いて本考案を具体
的に説明する。
The present invention will be specifically described below based on embodiments shown in the drawings.
軸筒１の内面には環状の係止突起１１が形成さ
れている。先口２は軸筒１内に挿入され、その先
端が軸筒１の先端開口１２から突出しているが、
外周には弾性突起２１が形成されており、この弾
性突起２１が係止突起１１に係合して固定されて
いる。この先口２の後端には連結部材３が螺着さ
れている。この連結部材３の先端縁でチヤツクリ
ング４を受け止めるが、チヤツクリング４および
連結部材３に挿入された合成樹脂製のチヤツク５
の後端が鉛芯ケース６に圧入されている。そし
て、鉛芯ケース６の先端縁と連結部材３の内突起
との間にバネ７が介装されており、鉛芯ケース６
が後方に付勢されている。従つて、チヤツク５も
後方に付勢されてチヤツクリング４で締め付けら
れ、鉛芯８を咬持する。ここで、図面に示す非ノ
ツク時において、連結部材３の後端縁３１と鉛芯
ケース６の外段６１との距離l1と、チヤツク５の
前端５１とチヤツク５が最も前進した時に衝合す
る先口２の内段２２との距離l2とが等しくなつて
いる。 An annular locking protrusion 11 is formed on the inner surface of the shaft cylinder 1 . The tip 2 is inserted into the barrel 1, and its tip protrudes from the tip opening 12 of the barrel 1.
An elastic protrusion 21 is formed on the outer periphery, and the elastic protrusion 21 is engaged with and fixed to the locking protrusion 11. A connecting member 3 is screwed onto the rear end of this tip 2. The chuck ring 4 is received at the tip edge of the connecting member 3, and the chuck 5 made of synthetic resin is inserted into the chuck ring 4 and the connecting member 3.
The rear end of the lead core case 6 is press-fitted. A spring 7 is interposed between the leading edge of the lead core case 6 and the inner protrusion of the connecting member 3.
is biased backwards. Therefore, the chuck 5 is also urged rearward and tightened by the chuck ring 4 to grip the lead core 8. Here, in the non-knocking state shown in the drawing, the distance l 1 between the rear end edge 31 of the connecting member 3 and the outer stage 61 of the lead core case 6 and the front end 51 of the chuck 5 collide with each other when the chuck 5 is advanced most. The distance l 2 between the tip end 2 and the inner stage 22 is equal.
次に、かかる構成のノツク式シヤープペンシル
の組立方法を説明すると、先ず、チヤツク５をチ
ヤツクリング４および連結部材３に通し、チヤツ
ク５にバネ７を被せてチヤツク５の後端を鉛芯ケ
ース６に軽く入れて仮止めしておく。そして、連
結部材３に先口２を螺着し、組立られた中具を軸
筒１の後端開口から挿入し、鉛芯ケース６の後端
を押して前進させる。鉛芯ケース６が前進する過
程でチヤツク５の前端が先口３の内段２２に衝合
して停止するので、チヤツク５の後端が鉛芯ケー
ス６に確実に圧入される。このとき、距離l1と距
離l2とが等しいので、チヤツク５の圧入が完了す
ると同時に、鉛芯ケース６の外段６１が連結部材
３の後端縁３１に衝合し、先口２を前進させる。
従つて、先口２の弾性突起２１が軸筒１の係止突
起１１を乗り越えて係合し、組立が完了する。す
なわち、鉛芯ケース６を押圧して前進させる一つ
の工程で、チヤツク５の鉛芯ケース６への圧入と
中具の軸筒１への組付けを同時に行うことができ
るので、組立工程が少なく、簡単に組立ることが
可能になる。このように、チヤツク５の圧入が完
了した後は、チヤツク５に圧力がかからないの
で、チヤツク５が強度の低い合成樹脂製であつて
も確実に組立ることができる。 Next, the method of assembling the lock-type sharp pencil having the above structure will be explained. First, the chuck 5 is passed through the chuck ring 4 and the connecting member 3, the spring 7 is placed on the chuck 5, and the rear end of the chuck 5 is attached to the lead core case 6. Insert it lightly and temporarily secure it. Then, the tip end 2 is screwed onto the connecting member 3, the assembled inner fitting is inserted through the rear end opening of the shaft tube 1, and the rear end of the lead core case 6 is pushed to move it forward. In the process of the lead core case 6 moving forward, the front end of the chuck 5 abuts against the inner stage 22 of the tip 3 and stops, so that the rear end of the chuck 5 is reliably press-fitted into the lead core case 6. At this time, since the distance l 1 and the distance l 2 are equal, at the same time that the chuck 5 is press-fitted, the outer stage 61 of the lead core case 6 abuts the rear edge 31 of the connecting member 3, and the tip 2 advance.
Therefore, the elastic protrusion 21 of the tip 2 crosses over the locking protrusion 11 of the barrel 1 and engages with it, completing the assembly. That is, in one process of pressing and advancing the lead core case 6, the chuck 5 can be press-fitted into the lead core case 6 and the inner part can be assembled into the shaft cylinder 1 at the same time, so the assembly process is reduced. , it becomes possible to assemble easily. In this way, after the chuck 5 is press-fitted, no pressure is applied to the chuck 5, so even if the chuck 5 is made of synthetic resin with low strength, it can be reliably assembled.
以上説明したように、本考案のノツク式シヤー
プペンシルは、連結部材の後端縁と鉛芯ケースの
外段との距離l1と、チヤツクの前端とチヤツクが
最も前進した時に衝合する先口の内段との距離l2
とを等しくし、先口の弾性突起が軸筒内面の係止
突起に係合するようにしたので、チヤツクが強度
の低い合成樹脂製であつても、鉛芯ケースを押圧
して前進させる一つの工程で、チヤツクの鉛芯ケ
ースへの圧入と中具の軸筒への組付けを同時に行
うことができる。従つて、本考案によれば、組立
工程が少なく、簡単に組立ることが可能なノツク
式シヤープペンシルとすることができる。
As explained above, the knock-type sharp pencil of the present invention has the following characteristics: the distance l 1 between the rear edge of the connecting member and the outer stage of the lead case, and the tip that collides with the front end of the chuck when the chuck is fully advanced. Distance from the inner stage of l 2
are made equal, and the elastic protrusion at the tip engages with the locking protrusion on the inner surface of the barrel, so even if the chuck is made of low-strength synthetic resin, it is easy to press the lead core case and move it forward. Press-fitting the chuck into the lead core case and assembling the inner part to the barrel can be done simultaneously in one process. Therefore, according to the present invention, it is possible to provide a click-type sharp pencil that requires fewer assembly steps and can be easily assembled.
図面は本考案実施例の一部切欠き正面図を示
す。
１……軸筒、１１……係止突起、２……先口、
２１……弾性突起、３……連結部材、５……チヤ
ツク、６……鉛芯ケース、６１……外段、７……
バネ。
The drawing shows a partially cutaway front view of an embodiment of the present invention. 1... shaft cylinder, 11... locking protrusion, 2... tip,
21...Elastic protrusion, 3...Connecting member, 5...Chuck, 6...Lead core case, 61...Outer stage, 7...
Spring.
Claims (1)
挿入され、外面の弾性突起が該係止突起に係合す
る先口と、この先口に螺着され、チヤツクリング
を受け止める連結部材と、連結部材の後端縁に衝
合する外段が形成され、合成樹脂製のチヤツクの
後端が圧入された鉛芯ケースと、この鉛芯ケース
と連結部材との間に介装され、チヤツクを後方に
付勢してチヤツクリングに係合させるバネとを備
え、非ノツク時において、該連結部材の後端縁と
鉛芯ケースの外段との距離l1と、チヤツクの前端
とチヤツクが最も前進した時に衝合する先口の内
段との距離l2とが等しいことを特徴とするノツク
式シヤープペンシル。 A shaft cylinder having a locking protrusion formed on its inner surface, a tip that is inserted into the shaft cylinder and in which an elastic projection on the outer surface engages with the locking protrusion, and a connecting member that is screwed onto the tip and receives a chuck ring. A lead core case is formed with an outer stage that abuts against the rear end edge of the connecting member, and the rear end of a synthetic resin chuck is press-fitted therein, and the lead core case is interposed between the lead core case and the connecting member, and the chuck is inserted between the lead core case and the connecting member. and a spring that urges the chuck backward to engage the chuck ring, and when the chuck is not clicked, the distance l 1 between the rear end edge of the connecting member and the outer stage of the lead core case, and the distance between the front end of the chuck and the chuck A lock-type sharp pencil characterized in that the distance l 2 between the inner stage of the tip and the inner stage of the tip that collides when the pencil is moved forward is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11140287U JPH0514875Y2 (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11140287U JPH0514875Y2 (en) | 1987-07-22 | 1987-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6417785U JPS6417785U (en) | 1989-01-30 |
| JPH0514875Y2 true JPH0514875Y2 (en) | 1993-04-20 |
Family
ID=31349415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11140287U Expired - Lifetime JPH0514875Y2 (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514875Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0452344U (en) * | 1990-09-10 | 1992-05-01 | ||
| CA2540431C (en) | 2004-05-31 | 2009-12-22 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
-
1987
- 1987-07-22 JP JP11140287U patent/JPH0514875Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6417785U (en) | 1989-01-30 |
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