JPS63113687U

JPS63113687U -

Info

Publication number: JPS63113687U
Application number: JP581487U
Authority: JP
Priority date: 1987-01-19
Filing date: 1987-01-19
Publication date: 1988-07-21
Also published as: JPH0432303Y2

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案第１実施例に係り、
第１図は使用状態の全体縦断面図、第２図は不使
用状態の全体縦断面図、第３図は第１図Ａ―Ａ線
位置の横断面図、第４図は第１図Ｂ―Ｂ線位置の
横断面図、第５図は消ゴムホルダーの斜視図、第
６図は消ゴムホルダーのガイド溝の展開平面図で
ある。第７図は本考案第２実施例に係り、消ゴム
ホルダーのガイド溝の展開平面図である。１……先軸、２……先軸内筒、３……口金、４
……保持チヤツク、５……芯ケース、６……チヤ
ツク機構、７……突起、８……平面部、９……孔
、１０……突起、１１……押圧リング、１２……
キヤツプ、１３……飾りリング、１４……ネジ管
、１５……天冠、１６……クリツプ、１７……リ
ブ、１８……回転止めリング、１９……消ゴムホ
ルダー、２０……溝、２１……ガイド溝、２２…
…フランジ部、２３……消ゴム、２４……消ゴム
止具、２５……芯掃除棒、２６……消ゴムセツト
、２７……ノツクカバー、２８……縦溝部、２９
……横溝部、３０……ストツパー部、３１……ス
プリング、３２……ノツクスプリング。 1 to 6 relate to the first embodiment of the present invention,
Figure 1 is an overall vertical cross-sectional view in a used state, Figure 2 is an overall vertical cross-sectional view in an unused state, Figure 3 is a cross-sectional view taken along line A-A in Figure 1, and Figure 4 is Figure 1 B. 5 is a perspective view of the eraser holder, and FIG. 6 is a developed plan view of the guide groove of the eraser holder. FIG. 7 is a developed plan view of the guide groove of the eraser holder according to the second embodiment of the present invention. 1... Tip shaft, 2... Tip barrel inner cylinder, 3... Base, 4
...Holding chuck, 5... Core case, 6... Chuck mechanism, 7... Protrusion, 8... Plane part, 9... Hole, 10... Protrusion, 11... Pressing ring, 12...
Cap, 13... Decorative ring, 14... Threaded pipe, 15... Crown, 16... Clip, 17... Rib, 18... Rotation stop ring, 19... Eraser holder, 20... Groove, 21... ...Guide groove, 22...
... Flange portion, 23 ... Eraser, 24 ... Eraser stopper, 25 ... Lead cleaning stick, 26 ... Eraser set, 27 ... Knob cover, 28 ... Vertical groove portion, 29
...Horizontal groove part, 30...Stopper part, 31...Spring, 32...Knock spring.

Claims

[Scope of utility model registration request]

A lead case that enables the lead to be fed out by moving in the axial direction with respect to the tip shaft in conjunction with the chuck mechanism is attached non-rotatably to the tip shaft, and is movable in the axial direction with respect to the tip shaft and rotates. A cap is freely attached to the eraser holder, an eraser holder is attached to the cap so as to be movable in the axial direction and non-rotatable, a protrusion is provided on the lead case, and the eraser holder communicates with an axial longitudinal groove at least at its front end. A guide groove consisting of a horizontal groove having a circumferential component and an axial component is provided, and a protrusion is movably fitted into the guide groove to connect the eraser holder and the lead case. In addition, a spring is attached to the eraser holder to always push it forward, and a notch is formed at the rear end of the cap so that it can be retracted from the rear end of the cap. With the knob located at the front end, the knob protrudes the required amount from the rear end of the cap, and with the protrusion located at the rear end, where the protrusion communicates with the vertical groove in the horizontal groove, the knob retracts into the rear end of the cap. A retractable sharp pencil characterized in that the positional relationship of a pencil cap, an eraser holder, and a lead case and the dimensions of each of these parts are appropriately set.