JPH0111509Y2 - - Google Patents
Info
- Publication number
- JPH0111509Y2 JPH0111509Y2 JP1982037437U JP3743782U JPH0111509Y2 JP H0111509 Y2 JPH0111509 Y2 JP H0111509Y2 JP 1982037437 U JP1982037437 U JP 1982037437U JP 3743782 U JP3743782 U JP 3743782U JP H0111509 Y2 JPH0111509 Y2 JP H0111509Y2
- Authority
- JP
- Japan
- Prior art keywords
- rear end
- joint
- face
- base
- cap
- 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
Links
- 238000003825 pressing Methods 0.000 claims description 5
- 230000004323 axial length Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
口金の内部に凹溝を周設してこの凹溝内にスナ
ツプリング形状の継手を嵌合し、また軸筒の先端
寄り個所の内面に段部を形成し軸筒の先端より口
金の細径部を差込みその後端縁を外向きに折曲し
て同折曲部を上記の段部に係合して口金と継手と
軸筒を一体化したシヤープペンシルは、本願出願
人の出願に係る実公昭55−32789号公報によつて
公知となつているが、この構造のものは口金およ
び軸筒の加工及び三者の組立作業が面倒で製造コ
ストも高くなるという欠点があり、また継手と口
金と軸筒とを相互に螺着する形式のものも実開昭
57−144587号公報などによつて公知となつている
が、この構造のものは三者に夫々螺条を刻設する
必要があつてコスト高となり、また組立時には相
互の捩込作業を必要として非能率であるなどの問
題点があつた。[Detailed description of the invention] A concave groove is provided around the inside of the cap, and a snap-spring-shaped joint is fitted into this concave groove, and a step is formed on the inner surface of the portion near the tip of the shaft tube. A sharp pencil in which the narrow diameter part of the cap is inserted from the tip, the rear end edge is bent outward, and the bent part is engaged with the stepped part to integrate the cap, the joint, and the barrel is disclosed in the present application. This structure is known from Japanese Utility Model Publication No. 1983-32789, which was filed by a person, but this structure has the disadvantage that the machining of the cap and barrel and the assembly of the three members are troublesome and the manufacturing cost is high. There is also a type in which the joint, cap, and barrel are screwed together.
Although this structure is known from Japanese Patent No. 57-144587, it is necessary to carve screws in each of the three parts, which increases the cost, and also requires screwing in each other during assembly. There were problems such as inefficiency.
本考案はこのような技術的課題を解決して廉価
なシヤープペンシルを提供することを目的とする
ものであつて、後端に芯ケースを固着した芯固定
チヤツクの前方外周部に締め具及び継手を配し該
継手の後端面と芯ケースの前端面との間にスプリ
ングを介在させた機構部を構成し、該機構部の前
端部を口金の後端孔に挿入して継手を口金に圧入
固着すると共に当該機構部を軸筒内に挿入して軸
筒の先端口内面に口金の後端外面を前記スプリン
グの押圧力を僅かに超える程度の圧力を以て圧入
固定し、また口金の内部には軸筒後端から突出し
たノツク棒の突出長さよりも大きな軸方向の長さ
を有する芯固定チヤツクの可動空間を構成すると
共に継手の後端面と芯ケースの前端面間における
芯ケースの可動空間もノツク棒の突出長さよりも
大としたことを要旨とするものである。 The purpose of the present invention is to solve such technical problems and provide an inexpensive sharpening pencil.The purpose of the present invention is to solve these technical problems and provide an inexpensive sharpening pencil. A mechanical part is constructed in which a spring is interposed between the rear end face of the joint and the front end face of the core case, and the front end of the mechanical part is inserted into the rear end hole of the base, and the joint is press-fitted into the base. At the same time, the mechanism is inserted into the barrel, and the outer surface of the rear end of the cap is press-fitted into the inner surface of the tip opening of the barrel with a pressure slightly exceeding the pressing force of the spring. It constitutes a movable space for the core fixing chuck, which has a longer length in the axial direction than the protruding length of the knock rod protruding from the rear end of the shaft cylinder, and also a movable space for the core case between the rear end surface of the joint and the front end surface of the core case. The gist is that the length is longer than the protruding length of the knob rod.
尚、図示せる実施例は芯固定チヤツク１の後端
に係止突起２を設けて同突起２を芯ケース３の前
端孔４内に嵌入して芯固定チヤツク１と芯ケース
３を一体に固着し、芯固定チヤツク１の前端テー
パ部５の外周部には締め具６を配し更に締め具６
の後端面に当接させて継手７を配し継手７の後端
面と上記芯ケース３の前端面の間にはコイルスプ
リング８を介在させて機構部９を構成し、該機構
部９の前端に位置する締め具６を口金１０の後端
孔１１に挿入させると共に継手７の前半部を同後
端孔１１内に継手７の外面略中央部に設けた段部
１２が口金１０の後端面に当接するまで圧入して
機構部９と口金１０を一体に固着し、同機構部９
を軸筒１３の先端口から軸筒内に挿入すると共に
口金１０の後端外面を前記のスプリング８の押圧
力を僅かに超える程度の圧力を以て軸筒１３の先
端口内面に口金１０の外面段部１４が軸筒先端面
に当接するまで圧入して口金１０と軸筒とを一体
的に固着し、又口金１０の内部には後端孔１１の
前方に芯固定チヤツク１が前進して進入する空間
部１５をその軸方向の長さL1が芯ケース３の後
端部に嵌着したノツク棒１６が軸筒後端より突出
した長さL2より大きくなるように設けると共に
継手７の後端面と芯ケース３の前端面間における
芯ケース３の可動空間L3もノツク棒１６の突出
長さL2よりも大としたものである。 In the illustrated embodiment, a locking protrusion 2 is provided at the rear end of the lead fixing chuck 1, and the protrusion 2 is inserted into the front end hole 4 of the lead case 3, thereby fixing the lead fixing chuck 1 and the lead case 3 together. A fastener 6 is disposed on the outer periphery of the tapered portion 5 at the front end of the core fixing chuck 1.
A joint 7 is disposed in contact with the rear end surface, and a coil spring 8 is interposed between the rear end surface of the joint 7 and the front end surface of the core case 3 to constitute a mechanism section 9. The fastener 6 located at the base 10 is inserted into the rear end hole 11 of the base 10, and the front half of the joint 7 is inserted into the rear end hole 11. A stepped portion 12 provided approximately in the center of the outer surface of the joint 7 is inserted into the rear end surface of the base 10. Press fit the mechanism part 9 and the cap 10 together until they come into contact with the mechanism part 9.
is inserted into the barrel from the tip opening of the barrel 13, and the outer surface of the rear end of the cap 10 is pressed against the inner surface of the tip opening of the barrel 13 with a pressure slightly exceeding the pressing force of the spring 8. The cap 10 and the barrel are fixed together by being press-fitted until the portion 14 comes into contact with the tip surface of the barrel, and the core fixing chuck 1 advances forward and enters the interior of the cap 10 in front of the rear end hole 11. The space 15 is provided so that its axial length L 1 is larger than the length L 2 of the knob rod 16 fitted to the rear end of the core case 3 protruding from the rear end of the shaft cylinder. The movable space L3 of the lead case 3 between the rear end face and the front end face of the lead case 3 is also made larger than the protruding length L2 of the knock rod 16.
本考案は叙上のように口金と継手及び軸筒を相
互固定するに際し、継手を口金の後端孔内に、ま
た口金の後端外面を軸筒の先端口内に夫々圧入固
着するようにしたので口金の内部に凹溝を周設し
てこの凹溝内にスナツプリング形状の継手を嵌合
し、また軸筒の先端寄り個所の内面に段部を形成
し軸筒の先端より口金の細径部を差込みその後端
縁を外向きに折曲して同折曲部を上記の段部に係
合して口金と継手と軸筒を一体化したり、継手と
口金と軸筒の三者に螺条を刻設してこれらと相互
に螺合するなどの前記の方式に比して構成が極め
て簡単であつて且つ作業も著しく簡易であり、加
うるに本考案においては軸筒の先端口内面と口金
の後端との圧入固定は前述のように機構部のスプ
リングの押圧力より僅かに高い圧力を以てすれば
足りるので軸筒と内部機構との着脱はこれを極め
て容易に行うことができるものであり、更にまた
本考案においてはノツク操作を行う場合にも芯固
定チヤツクの可動空間の軸方向の長さをノツクス
トロークよりも大きくして芯固定チヤツクによる
口金への内方からの加圧を除くと共に継手の後端
面と芯ケースの前端面間における芯ケースの可動
空間もノツク棒の突出長さよりも大として芯ケー
ス前端による継手への内方からの加圧を除いてい
るのでこれによつて口金が継手や軸筒先端より抜
脱する虞れがないなどの優れた効果を有するもの
である。 As described above, when fixing the cap, the joint, and the barrel to each other, the present invention is such that the joint is press-fitted into the rear end hole of the cap, and the outer surface of the rear end of the cap is press-fitted into the tip opening of the barrel. Therefore, a concave groove is formed around the inside of the cap, and a snap-spring-shaped joint is fitted into this concave groove, and a step is formed on the inner surface near the tip of the barrel so that the narrow diameter of the cap is lowered from the tip of the barrel. Insert the part, bend the end edge outward, and engage the bent part with the stepped part to integrate the cap, joint, and barrel, or screw the joint, cap, and barrel into one. Compared to the above-mentioned method of carving out strips and screwing them together, the structure is extremely simple and the work is extremely simple. As mentioned above, it is sufficient to press-fit and fix the rear end of the cap with a pressure slightly higher than the pressing force of the spring in the mechanism part, so it is extremely easy to attach and detach the shaft cylinder and the internal mechanism. Furthermore, in the present invention, even when performing a knock operation, the axial length of the movable space of the core fixing chuck is made larger than the knock stroke to prevent the core fixing chuck from applying pressure from the inside to the mouthpiece. At the same time, the movable space of the core case between the rear end surface of the joint and the front end surface of the core case is also made larger than the protruding length of the knock rod to eliminate the pressure applied to the joint from the inside by the front end of the core case. This has excellent effects such as there is no risk of the cap falling out from the joint or the tip of the barrel.
図は本考案ノツク式シヤープペンシルの実施例
を示す全体の断面図である。
１……芯固定チヤツク、２……係止突起、３…
…芯ケース、４……芯ケースの前端孔、５……テ
ーパ部、６……締め具、７……継手、８……コイ
ルスプリング、９……機構部、１０……口金、１
１……口金の後端孔、１２……継手外面段部、１
３……軸筒、１４……口金の外面段部、１５……
空間部、１６……ノツク棒。
The figure is an overall sectional view showing an embodiment of the knock-type mechanical pencil of the present invention. 1... Core fixing chuck, 2... Locking protrusion, 3...
... Core case, 4 ... Front end hole of core case, 5 ... Tapered part, 6 ... Fastener, 7 ... Joint, 8 ... Coil spring, 9 ... Mechanism part, 10 ... Base, 1
1... Rear end hole of the base, 12... Joint outer step, 1
3... Shaft cylinder, 14... External stepped portion of base, 15...
Space part, 16...knot stick.
Claims (1)
方外周部に締め具及び継手を配し該継手の後端面
と芯ケースの前端面との間にスプリングを介在さ
せた機構部を構成し、該機構部の前端部を口金の
後端孔に挿入して継手を口金に圧入固着すると共
に該機構部を軸筒内に挿入して軸筒の先端口内面
に口金の後端外面を前記のスプリングの押圧力を
僅かに超える程度の圧力を以て圧入固定し、また
口金の内部には軸筒後端から突出したノツク棒の
突出長さよりも大きな軸方向の長さを有する芯固
定チヤツクの可動空間を構成すると共に継手の後
端面と芯ケースの前端面間における芯ケースの可
動空間もノツク棒の突出長さよりも大としたこと
を特徴とするノツク式シヤープペンシル。 A mechanism part is constructed by arranging a fastener and a joint on the front outer circumference of a lead fixing chuck to which a lead case is fixed to the rear end, and interposing a spring between the rear end face of the joint and the front end face of the lead case. Insert the front end of the mechanical part into the rear end hole of the base, press-fit the joint into the base, and insert the mechanism into the shaft cylinder so that the outer surface of the rear end of the base is attached to the inner surface of the tip opening of the shaft cylinder. The core fixing chuck is press-fitted and fixed with a pressure slightly exceeding the pressing force of A lock type sharp pencil characterized in that the movable space of the lead case between the rear end face of the joint and the front end face of the lead case is also larger than the protruding length of the hitch rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3743782U JPS58140780U (en) | 1982-03-17 | 1982-03-17 | Knotsuku style pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3743782U JPS58140780U (en) | 1982-03-17 | 1982-03-17 | Knotsuku style pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58140780U JPS58140780U (en) | 1983-09-21 |
| JPH0111509Y2 true JPH0111509Y2 (en) | 1989-04-04 |
Family
ID=30048826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3743782U Granted JPS58140780U (en) | 1982-03-17 | 1982-03-17 | Knotsuku style pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58140780U (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250826U (en) * | 1975-05-20 | 1977-04-11 | ||
| JPS5529593U (en) * | 1978-08-18 | 1980-02-26 | ||
| JPS5532789U (en) * | 1978-08-25 | 1980-03-03 | ||
| JPS567506U (en) * | 1979-06-27 | 1981-01-22 | ||
| JPS5644188B2 (en) * | 1978-11-27 | 1981-10-17 | ||
| JPS5721748U (en) * | 1980-07-15 | 1982-02-04 | ||
| JPS5729383B2 (en) * | 1976-05-21 | 1982-06-22 | ||
| JPS6220313U (en) * | 1985-07-23 | 1987-02-06 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55140490U (en) * | 1979-03-27 | 1980-10-07 | ||
| JPS6021268Y2 (en) * | 1979-09-12 | 1985-06-25 | パイロツトプレシジヨン株式会社 | Knotsuku style pencil |
| JPS5837670Y2 (en) * | 1980-03-29 | 1983-08-25 | 株式会社 寿 | Shape pencil |
| JPS6112145Y2 (en) * | 1980-03-05 | 1986-04-16 | ||
| JPS593913Y2 (en) * | 1980-04-11 | 1984-02-03 | 株式会社 寿 | Shape pencil |
| JPS5837678Y2 (en) * | 1980-07-25 | 1983-08-25 | 株式会社 寿 | Shape pencil |
| JPS6337268Y2 (en) * | 1981-03-09 | 1988-10-03 |
-
1982
- 1982-03-17 JP JP3743782U patent/JPS58140780U/en active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250826U (en) * | 1975-05-20 | 1977-04-11 | ||
| JPS5729383B2 (en) * | 1976-05-21 | 1982-06-22 | ||
| JPS5529593U (en) * | 1978-08-18 | 1980-02-26 | ||
| JPS5532789U (en) * | 1978-08-25 | 1980-03-03 | ||
| JPS5644188B2 (en) * | 1978-11-27 | 1981-10-17 | ||
| JPS567506U (en) * | 1979-06-27 | 1981-01-22 | ||
| JPS5721748U (en) * | 1980-07-15 | 1982-02-04 | ||
| JPS6220313U (en) * | 1985-07-23 | 1987-02-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58140780U (en) | 1983-09-21 |
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