JPS6260382U

JPS6260382U -

Info

Publication number: JPS6260382U
Application number: JP15194685U
Authority: JP
Priority date: 1985-10-02
Filing date: 1985-10-02
Publication date: 1987-04-14

Description

[Brief explanation of drawings]

第１図は本考案シヤープペンシルの不使用状態
を表わした縦断正面図、第２図はチヤツクが筆記
芯を開放した使用可能直前状態を表わした同正面
図、第３図は筆記芯をチヤツクがチヤツキングし
た引込み直前の状態を表わした同正面図、第４図
は主要部材の分解斜視図、第５図はカム管の正面
図、第６図は作用（用法）の概略説明図である。図中、１……カム管、１０１……山形状係合斜
辺、１０１’……山形状係合斜辺の一方（係合短
斜辺）、１０１″……山形状係合斜辺の他方（係
合長斜辺）、２……軸筒、２０１……後軸、２０
２……前軸、３……導管、３０１……縦向誘導部
、４……引込みバネ、５……芯ケース、５０１…
…係合突起、６……チヤツク、７……締リング、
８……引込みリング、９……押戻バネ、ａ……筆
記芯。 Fig. 1 is a vertical sectional front view showing the sharp pencil of the present invention when it is not in use, Fig. 2 is a front view showing the same state immediately before it can be used with the chuck releasing the writing tip, and Fig. 3 is the same front view showing the sharp pencil of the present invention when the writing tip is open. 4 is an exploded perspective view of the main components, FIG. 5 is a front view of the cam tube, and FIG. 6 is a schematic explanatory diagram of the operation (usage). In the figure, 1... cam tube, 101... chevron-shaped engagement hypotenuse, 101'... one of the chevron-shaped engagement hypotenuses (the short engagement oblique side), 101''... the other of the chevron-shaped engagement hypotenuses (the engagement long hypotenuse), 2... shaft cylinder, 201... rear shaft, 20
2... Front shaft, 3... Conduit, 301... Vertical guide section, 4... Retraction spring, 5... Core case, 501...
...Engaging protrusion, 6...Chuck, 7...Tightening ring,
8... Retraction ring, 9... Push back spring, a... Writing lead.

Claims

[Scope of utility model registration request]

A cam tube is installed in the rear shaft of the shaft cylinder, and the cam tube is constructed by forming one of the approximately chevron-shaped engagement hypotenuses to be short for feeding out the writing lead and the other long for drawing in the writing lead, and a vertical guiding portion is formed. The formed conduit is installed in the front shaft of the shaft cylinder, the rear shaft is rotatably connected to the front shaft, and the engaging projection protruding from the core case is penetrated through the conduit and pressed by a retraction spring. The inner surface of a tightening ring that engages with the mating hypotenuse and the vertical guiding part and that chucks or releases the writing lead by fitting or releasing the chuck connected to the lead case, and the inner surface of the retracting ring for retracting the writing lead. Both have slopes that taper from the mouth end to the back, and the tightening ring and the retraction ring are arranged opposite to each other inside the tip of the front shaft, and the retraction ring is pressed in the writing lead retraction direction. A sharpening pencil with a spring placed inside the tip of the front shaft.