JPH0417992U

JPH0417992U -

Info

Publication number: JPH0417992U
Application number: JP5967090U
Authority: JP
Priority date: 1990-06-07
Filing date: 1990-06-07
Publication date: 1992-02-14

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例を示す断面図、
第２図、第３図は同作動説明図、第４図はこの考
案の他の実施例を示す断面図、第５図、第６図、
第７図、第８図は同芯の自動繰出しを行う作動説
明図、第９図は、更に他の実施例を示す正面図、
第１０図は、カム輪の平面図及び対応線図、第１
１図はガイドロールの他の実施例の平面図である
。尚、Ａ……筆記具、Ｐ……作図面、１……軸本
体、２，２′……筆記部、３……スプリング、４
……ガイドロール、５……カム輪、６……ペンシ
ル本体、７……ねじ継手、８……本体先口部、９
……チヤツク、１０……鉛筆芯、１１……転子、
１２……転子保持リング、１３……芯保持パイプ
、１４……チヤツク締めリング、１５……芯繰出
駒、１６……摩擦係合体、１７……コンパス。 FIG. 1 is a sectional view showing an embodiment of this invention.
Figures 2 and 3 are explanatory views of the same operation, Figure 4 is a sectional view showing another embodiment of this invention, Figures 5 and 6,
FIG. 7 and FIG. 8 are explanatory diagrams of the operation for automatically feeding out the concentric core, and FIG. 9 is a front view showing still another embodiment.
Figure 10 is a plan view and corresponding diagram of the cam wheel,
FIG. 1 is a plan view of another embodiment of the guide roll. In addition, A...writing instrument, P...drawing drawing, 1...shaft body, 2, 2'...writing part, 3...spring, 4
... Guide roll, 5 ... Cam ring, 6 ... Pencil body, 7 ... Threaded joint, 8 ... Main body tip, 9
...chuck, 10...pencil lead, 11...trochanter,
12... Trochanter holding ring, 13... Core holding pipe, 14... Chuck tightening ring, 15... Core feeding piece, 16... Friction engagement body, 17... Compass.

Claims

[Scope of Claim for Utility Model Registration] 1. A shaft body, and a writing section provided on the shaft body that is always elastically biased downward so that the tip of the writing section is in contact with the ground and is movable up and down. a guide roll provided at the lower part of the shaft body and in contact with the ground; and a cam ring provided coaxially with the guide roll and having a smaller diameter than the guide roll, the cam ring protruding into the writing part. A writing instrument characterized by a fixed pin. 2. The writing instrument according to claim 1, wherein the writing part is a slide sharp pencil whose lead can be automatically fed out. 3. The writing side leg of the compass is connected to a shaft body, and a writing section is provided on the shaft body, which is always resiliently biased downward so that the tip of the shaft of the writing section is in contact with the ground, and is movable up and down. , a guide roll provided at the lower part of the shaft body and in contact with the ground; and a cam ring provided coaxially with the guide roll and having a smaller diameter than the guide roll, the cam ring protruding from the writing part. A writing instrument characterized by a pin attached to it.