JPS6060288U

JPS6060288U - Shape pencil

Info

Publication number: JPS6060288U
Application number: JP15402883U
Authority: JP
Inventors: 良英光谷
Original assignee: 株式会社　サクラクレパス
Priority date: 1983-10-03
Filing date: 1983-10-03
Publication date: 1985-04-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は１部省略せる第１の実施例断面図、第２図〜第
４図　異る状態を示す第１の実施例の要部断面図、第５
図　第６図　異る状態を示す第２の実施例の要部断面図
。１・・・軸筒、２・・・端部筒、３・・・芯保持機構、
７・・・枠体、８・・・ボール、１０・・・チャックス
プリング、１１・・・チャック、２３・・・芯保護管、
２５，１２５・・・芯保持部材、３０・・・芯保護管付
勢用スプリング、３１．３１・・・操作部材、３６，１
３７・・・係止部、ａ・・・格納用係止部、ｂ・・・後
退用係止部。Fig. 1 is a sectional view of the first embodiment in which one part can be omitted; Figs. 2 to 4 are sectional views of main parts of the first embodiment showing different states;
Figure 6 is a sectional view of the main part of the second embodiment showing a different state. 1... Shaft tube, 2... End tube, 3... Core holding mechanism,
7... Frame body, 8... Ball, 10... Chuck spring, 11... Chuck, 23... Core protection tube,
25,125... Core holding member, 30... Core protection tube biasing spring, 31.31... Operating member, 36,1
37... Locking part, a... Locking part for storage, b... Locking part for retreat.

Claims

[Scope of utility model registration request]

(1) Equipped with a lead holding mechanism that prevents the lead from retreating but allows it to advance inside the barrel, and a lead protection tube with a lead holding part that is always biased forward so that the tip protrudes from the barrel. In the mechanical pencil, the operating member is slidably attached to the opening formed through the side of the barrel, and the operating member is placed in a predetermined position on either the operating member or the part of the lead protection tube located inside the barrel. A locking part is formed, and a locking part for storing the core protection tube and a locking part for retracting the core protection tube are formed on the other side at a predetermined interval in the axial direction and releasably locking with the locking part. A mechanical pencil.

(2) A locking part is formed at a predetermined position on the operating member, and a locking part for storing the core protection tube is formed at a predetermined interval in the front part of the core protection tube located in the shaft cylinder, and a core protection tube storage part is provided at the rear part. A mechanical pencil according to claim 1 of the utility model registration, which has a locking part for the rear end of the tube.

(3) A locking part is formed at a predetermined position on the part of the core protection tube located inside the shaft cylinder, and a locking part for retracting the core protection tube is formed in the front part at a predetermined interval on the operating member, and a locking part for retracting the core protection tube is formed in the rear part of the operation member. A mechanical pencil according to claim 1 of the utility model registration, which is formed with a locking part for storing a protective tube.

(4) The mechanical pencil according to claim 1 of the utility model registration claim, in which the predetermined interval between the locking part for retracting the lead protection tube and the locking part for storage is set equal to the protrusion length of the lead protection tube projecting from the barrel.