JPS6243787U

JPS6243787U -

Info

Publication number: JPS6243787U
Application number: JP13517185U
Authority: JP
Priority date: 1985-09-04
Filing date: 1985-09-04
Publication date: 1987-03-16
Also published as: JPH0356386Y2

Description

[Brief explanation of drawings]

第１図は本考案の自動繰出式シヤープペンシル
を示す縦断面図、第２図は第１図の自動繰出式シ
ヤープペンシルの筆記状態を示す縦断面図、第３
図は第１図の自動繰出式シヤープペンシルの筆記
により芯が摩耗した状態を示す主要部縦断面図、
第４図は第１図の自動繰出式シヤープペンシルの
芯ガイドパイプが前進している状態を示す主要部
縦断面図、第５図および第６図はそれぞれ本考案
の他の実施例を示す主要部縦断面図である。１，１０１，２０１……軸、１Ａ，１０１Ａ，
２０１Ａ……軸１，１０１，２０１のテーパー面
、２０１Ｂ……軸２０１の内津２，１０２，２０
２……口金、２Ａ，１０２Ａ，２０２Ａ……口金
２，１０２，２０２の先端穴、１０２Ｂ……口金
１０２の内段、３，１０３，２０３……芯ガイド
パイプ、３Ａ，１０３Ａ，２０３Ａ……芯ガイド
パイプ３，１０３，２０３の外段、３Ｂ，１０３
Ｂ，２０３Ｂ……芯ガイドパイプ３，１０３，２
０３の凹部、３Ｃ，１０３Ｃ，２０３Ｃ……芯ガ
イドパイプ３，１０３，２０３の内段、４，１０
４，２０４……スプリング受、４Ａ，２０４Ａ…
…スプリング受４，２０４の外段、５，１０５，
２０５……第１スプリング、６，１０６，２０６
……芯、７，１０７，２０７……芯ホルダー、８
，１０８，２０８……第２スプリング、９，１０
９，２０９……チヤツク、９Ａ，１０９Ａ，２０
９Ａ……チヤツク９，１０９，２０９の頭部、９
Ｂ，１０９Ｂ，２０９Ｂ……チヤツク９，１０９
，２０９の凹陥部、９Ｃ……チヤツク９の漏斗状
部、２０９Ｄ……チヤツク２０９の外鍔、１０，
１１０，２１０……ボール、１１……消しゴム、
１２，１１２……予備芯、１３……ノブ、１４…
…第３スプリング、１５……磁石、１６……第４
スプリング。 Fig. 1 is a vertical cross-sectional view showing the self-feeding mechanical pencil of the present invention, Fig. 2 is a longitudinal cross-sectional view showing the automatic feeding mechanical pencil of Fig. 1 in a writing state, and Fig. 3
The figure is a vertical cross-sectional view of the main parts of the self-feeding sharp pencil shown in Figure 1, showing the state in which the lead has been worn out due to writing.
Fig. 4 is a vertical cross-sectional view of the main part of the self-feeding sharp pencil shown in Fig. 1, showing the state in which the lead guide pipe is moving forward, and Figs. FIG. 1,101,201...axis, 1A, 101A,
201A...Tapered surface of shaft 1, 101, 201, 201B...Inner part 2, 102, 20 of shaft 201
2...Cap, 2A, 102A, 202A...Tip hole of cap 2,102,202, 102B...Inner stage of cap 102, 3,103,203...Core guide pipe, 3A, 103A, 203A...Core Outer stage of guide pipe 3, 103, 203, 3B, 103
B, 203B... Core guide pipe 3, 103, 2
Recessed portion of 03, 3C, 103C, 203C... Inner stage of core guide pipe 3, 103, 203, 4, 10
4,204... Spring holder, 4A, 204A...
...outer stage of spring receiver 4,204, 5,105,
205...first spring, 6,106,206
... Core, 7,107,207 ... Core holder, 8
, 108, 208...second spring, 9, 10
9,209...chuck, 9A,109A,20
9A...Head of chuck 9, 109, 209, 9
B, 109B, 209B...Chick 9,109
, 209 concave portion, 9C... funnel-shaped portion of chuck 9, 209D... outer flange of chuck 209, 10,
110,210...Ball, 11...Eraser,
12,112...Spare lead, 13...Knob, 14...
...Third spring, 15...Magnet, 16...Fourth
spring.

Claims

[Scope of utility model registration request]

In an automatic sharp pencil, in which the lead is automatically fed out sequentially as the lead wears out, a lead guide pipe and a spring holder are built into the base of the shaft so as to be slidable in the axial direction, and the lead guide pipe and spring The first part extends to a free length between the receiver and the receiver.
By providing a spring, the tip of the lead guide pipe protrudes from the tip hole of the cap, and the lead holding force of the lead holder is increased between the lead holder, which is loosely fitted into the recess of the lead guide pipe, and the inner stage of the lead guide pipe. A second spring which is weaker and has a smaller spring constant than the first spring is stretched, and the head of the tick is located between the spring receiver and the tapered surface of the shaft that gradually tapers toward the rear in the axial direction. The head of the chuck is configured to be openable and closable, and the ball is rotatably mounted in a recess provided in the head, and when the first spring is extended to its free length, the head of the chuck is expanded. A self-feeding sharpening pencil characterized by a structure that allows the lead to pass through.