JPH02148385U

JPH02148385U -

Info

Publication number: JPH02148385U
Application number: JP5587789U
Authority: JP
Priority date: 1989-05-17
Filing date: 1989-05-17
Publication date: 1990-12-17

Description

[Brief explanation of the drawing]

図面は本考案の実施例のサイドノツク式シヤー
プペンシルを示しており、第１図は口金を突出し
た状態の縦断面図、第２図は同上におけるＡ−Ａ
断面図、第３図は口金を収納した状態の透視断面
図である。又、第４図は芯繰り出し時の要部断面
図を示している。１……先軸、２……キヤツプ、３……口金、４
……内筒、５……先端部、６……保持チヤツク、
７……外窓孔、９……三割チヤツク、１０……締
め具、１１……芯繰り出しばね、１２……摺動子
、１３……一側、１４……傾斜面、１５……ガイ
ド用長孔、１６……中継パイプ、１７……芯ケー
ス、１８，１９……段部、２０……カム斜面、２
１……先端孔、２２……凸部、２３……内径部、
２４……内窓孔、２５……サイドノツク釦、２６
……先端部、２７……円筒カム、２８……リブ、
２９……溝、３０……カム斜面、３１……凹溝、
３２……クリツプ、３３……消しゴム止め具、３
４……消しゴム、３５……ノツクカバー、３６…
…内径部、３７……内段、３８……リターンスプ
リング、３９……テーパー部。 The drawings show a side-knock type mechanical pencil according to an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view with the cap protruding, and FIG.
The cross-sectional view and FIG. 3 are perspective cross-sectional views showing a state in which the cap is housed. Moreover, FIG. 4 shows a sectional view of the main part when the core is fed out. 1... Tip shaft, 2... Cap, 3... Base, 4
... Inner cylinder, 5 ... Tip, 6 ... Holding chuck,
7... External window hole, 9... 30% chuck, 10... Fastener, 11... Core feeding spring, 12... Slider, 13... One side, 14... Inclined surface, 15... Guide Elongated hole, 16... Relay pipe, 17... Core case, 18, 19... Step part, 20... Cam slope, 2
1... Tip hole, 22... Convex part, 23... Inner diameter part,
24...Inner window hole, 25...Side knock button, 26
... Tip part, 27 ... Cylindrical cam, 28 ... Rib,
29...groove, 30...cam slope, 31...concave groove,
32...Clip, 33...Eraser stopper, 3
4...Eraser, 35...Knot cover, 36...
...Inner diameter part, 37...Inner stage, 38...Return spring, 39...Tapered part.

Claims

[Scope of utility model registration request]

An inner cylinder 4 having a base 3 at its tip is housed in the tip shaft 1 by biasing a return spring 8 between the tip shaft 1 and the tip shaft 1 so that it can be integrally moved in the axial direction with respect to the tip shaft 1 in the rotational direction. A cam slope 20 is provided at the rear end of the inner cylinder 4, and a cylindrical cam 27 having a cam slope 30 on the front surface facing and in contact with the cam slope 20 is provided integrally with the cap 2 in the rotational direction, and the cylindrical cam A return spring 38 is biased appropriately stronger than the writing pressure between the rear end of the cap 27 and the inner stage 37 of the cap 2, and the cap 2 is rotatably attached to the outer periphery of the rear end of the tip shaft 1 and prevented from coming off. At the same time, when the cap 2 is rotated with respect to the front shaft 1 and the cam slopes are slid together so that the tip of the cam slope 30 is located at the rear end of the cam slope 20, the cap 3 is moved from the tip of the front shaft 1. When the cam slope 30 protrudes and the bottom of the cam slope 30 is located at the rear end of the cam slope 20, the cap 3 is housed in the tip shaft 1, and an outer window hole 7 and a An inner window hole 24 is provided in a portion of the inner cylinder 4 corresponding to the outer window hole 7.
The core case 17, the relay pipe 16, and the 30% chuck 9 are housed in the inner cylinder 4 so as to be integrated, and the base 3 is located outside the 30% chuck 9 protruding from the inside of the inner cylinder 4. Fastener 10 inside the
A slider 12 is provided in the inner cylinder 4 to move the 30-split chuck 9 toward the distal end, and a slider 12 is provided which returns to its original position by the core feeding spring 11. A side-knock type sharp pencil characterized in that a side-knock button 25 is provided that can push the face 14 downward, so that the 30% chuck 9 can be moved toward the tip.