JPH01131582U - - Google Patents

Info

Publication number
JPH01131582U
JPH01131582U JP2950988U JP2950988U JPH01131582U JP H01131582 U JPH01131582 U JP H01131582U JP 2950988 U JP2950988 U JP 2950988U JP 2950988 U JP2950988 U JP 2950988U JP H01131582 U JPH01131582 U JP H01131582U
Authority
JP
Japan
Prior art keywords
chuck
ball
pipe
tip
case
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.)
Granted
Application number
JP2950988U
Other languages
Japanese (ja)
Other versions
JPH0650235Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988029509U priority Critical patent/JPH0650235Y2/en
Publication of JPH01131582U publication Critical patent/JPH01131582U/ja
Application granted granted Critical
Publication of JPH0650235Y2 publication Critical patent/JPH0650235Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の一実施例を示す要部断面図である
。 １……チヤツクケース、２……チヤツク収納孔
部、３……芯ガイド孔部、４……ボールチヤツク
、５……芯把持部、６……受座、７……ボール、
８……パイプ、９……保持チヤツク部、１０……
口金、１１……コイルスプリング、１２，１３…
…段部。 The figure is a sectional view of a main part showing an embodiment of the present invention. 1... Chuck case, 2... Chuck storage hole, 3... Lead guide hole, 4... Ball chuck, 5... Lead gripping part, 6... Receiver, 7... Ball,
8... Pipe, 9... Holding chuck section, 10...
Base, 11... Coil spring, 12, 13...
...Danbe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] チヤツクケースの先端部に後方へ向つて内径が
縮小して内面が円錘状となるチヤツク収納孔部が
設けられ、軸線方向に複数に分割されてその内面
部を芯把持部となすと共にその外面部に設けた凹
状の受座にボールを装入したボールチヤツクがチ
ヤツクケースの先端開口部からチヤツク収納孔部
へ挿入され、前方向への芯の移動に対して上記の
ボールチヤツクよりも強い芯保持力を発揮する保
持チヤツク部を後端に設けたパイプが口金の内部
に軸線方向へ一定範囲で移動自在に嵌装され、口
金がチヤツクケースの先端部に接合され、上記の
ボールチヤツクの前端面とパイプの後端面の間に
ボールチヤツクを後方へ付勢すると共にパイプを
その前端が口金から突出するように前方へ付勢す
るスプリングが介装されたことを特徴とするシヤ
ープペンシル。 A chuck storage hole is provided at the tip of the chuck case, and the inner diameter decreases toward the rear so that the inner surface becomes conical.The chuck storage hole is divided into a plurality of parts in the axial direction, and the inner surface serves as a lead gripping part, and the outer surface thereof A ball chuck with a ball inserted into a concave seat provided in the chuck case is inserted into the chuck storage hole from the opening at the tip of the chuck case, and exhibits a stronger core retention force than the above ball chuck against the movement of the core in the forward direction. A pipe with a holding chuck at its rear end is fitted inside the base so as to be movable within a certain range in the axial direction, and the base is joined to the tip of the chuck case, and the front end of the ball chuck and the rear end of the pipe A sharp pencil characterized in that a spring is interposed between the ends to bias the ball chuck rearward and to bias the pipe forward so that the front end of the pipe protrudes from the mouthpiece.
JP1988029509U 1988-03-04 1988-03-04 Sharp pencil Expired - Lifetime JPH0650235Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988029509U JPH0650235Y2 (en) 1988-03-04 1988-03-04 Sharp pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988029509U JPH0650235Y2 (en) 1988-03-04 1988-03-04 Sharp pencil

Publications (2)

Publication Number Publication Date
JPH01131582U true JPH01131582U (en) 1989-09-06
JPH0650235Y2 JPH0650235Y2 (en) 1994-12-21

Family

ID=31253790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988029509U Expired - Lifetime JPH0650235Y2 (en) 1988-03-04 1988-03-04 Sharp pencil

Country Status (1)

Country Link
JP (1) JPH0650235Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235896A (en) * 1985-08-10 1987-02-16 ミクロ株式会社 Automatic delivery type propelling pencil
JPS6313780U (en) * 1986-07-11 1988-01-29

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103243A (en) * 1979-02-02 1980-08-07 Ntn Toyo Bearing Co Ltd Producing apparatus of turbulent flow element for heat exchanger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235896A (en) * 1985-08-10 1987-02-16 ミクロ株式会社 Automatic delivery type propelling pencil
JPS6313780U (en) * 1986-07-11 1988-01-29

Also Published As

Publication number Publication date
JPH0650235Y2 (en) 1994-12-21

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