JPH03101689U

JPH03101689U -

Info

Publication number: JPH03101689U
Application number: JP1083590U
Authority: JP
Priority date: 1990-02-06
Filing date: 1990-02-06
Publication date: 1991-10-23
Anticipated expiration: 2005-02-06
Also published as: JP2512989Y2

Description

[Brief explanation of drawings]

第１図は本考案のノツク式シヤープペンシルを
示す主要部断面図、第２図は第１図のＡ−Ａ線を
示す断面図、第３図は第１図のＢ−Ｂ線を示す断
面図、第４図は第１図のノツク式シヤープペンシ
ルにおける芯繰出状態を示す主要部断面図、第５
図は第１図のノツク式シヤープペンシルにおける
チヤツクにより芯保持を解除した状態を示す主要
部断面図、第６図・第７図・第９図・第１０図・
第１１図・第１２図・第１３図・第１４図・第１
５図・第１６図・第１７図・第１８図・第１９図
はそれぞれ本考案の一実施例を示す主要部断面図
、第８図は第７図のＡ−Ａ線を示す断面図、第２
０図・第２１図・第２２図はそれぞれ本考案のノ
ツク式シヤープペンシルを示す断面図、第２３図
は第２２図のＡ−Ａ線を示す断面図である。２，１０２，２０２，３０２，４０２，５０２
，６０２，７０２，８０２……口金、２Ａ……口
金２のテーパー面、３，１０３，２０３……チヤ
ツク、４……チヤツクスプリング、９……リター
スプリング、１０，１１０，２１０，３１０，４
１０，５１０……芯ホルダー、１０Ａ，１１０Ａ
，５１０Ａ……芯ホルダー１０，１１０，５１０
の保持部、１３，１１３，２１３，３１３，４１
３……締具。 Fig. 1 is a cross-sectional view of the main parts of the knock-type mechanical pencil of the present invention, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along line B-B in Fig. 1. Figure 4 is a cross-sectional view of the main part showing the lead feeding state of the lock type mechanical pencil in Figure 1, and Figure 5 is
The figures are cross-sectional views of the main parts of the lock-type mechanical pencil shown in Figure 1, showing the state in which the lead is released by the chuck, Figures 6, 7, 9, 10,
Figure 11, Figure 12, Figure 13, Figure 14, Figure 1
5, FIG. 16, FIG. 17, FIG. 18, and FIG. 19 are sectional views of main parts showing one embodiment of the present invention, and FIG. 8 is a sectional view taken along line A-A in FIG. 7, Second
0, FIG. 21, and FIG. 22 are sectional views showing the knock-type mechanical pencil of the present invention, respectively, and FIG. 23 is a sectional view taken along line A--A in FIG. 22. 2,102,202,302,402,502
,602,702,802...cap, 2A...tapered surface of cap 2, 3,103,203...chuck, 4...chuck spring, 9...return spring, 10,110,210,310,4
10,510... Core holder, 10A, 110A
, 510A... core holder 10, 110, 510
Holding part, 13, 113, 213, 313, 41
3... Fastener.

Claims

[Scope of utility model registration request]

The core has a tapered surface that narrows toward the rear at the front, and the wedge action between the cap and the tapered surface of the cap, which is biased rearward by a chuck spring built into the cap, allows the core to move forward. It consists of a chuck that prevents backward movement, and a lead holder that is biased rearward by a return spring and has a groove in the longitudinal direction at the front to provide elasticity, and is used to hold the lead inside the lead holder. 1. A lock-supported sharp pencil characterized in that the lead holder is formed with an engaging portion that is slightly larger in diameter than the inner hole of the cap or the inner hole of a fastener built into the cap and that can be engaged.