Side knock-type mechanical pencil

Details Side knock-type mechanical pencil Side knock-type mechanical pencil

1997-10-29

1999-03-16

Walczak, David J.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 65, 401 85, B43K 21027

Patent

active

058821325

ABSTRACT:
A side knock-type mechanical pencil comprises: a barrel, a push member supported on the side wall of the barrel, and a sliding tube longitudinally slidably inserted in the barrel so as to correspond to the push member and internally provided with a lead passage. An angular cam portion formed in a middle portion of the sliding tube has a stepped surface consisting of a high slope and a pair of low slopes. The pair of side members of the push member touch the pair of low slopes in the initial stage of the pushing operation, and the top member which joins the pair of side members the high slope in a final stage of the pushing operation. The axis of a back portion is displaced from the axis of the barrel to a side opposite the side of the push member. A funnel-shaped lead receiving portion is formed integrally with the back portion at the back end of the same.

REFERENCES:
patent: 1490124 (1924-04-01), Netter
patent: 1503506 (1924-08-01), Keeran
patent: 2492839 (1949-12-01), Brubaker
patent: 3836264 (1974-09-01), Saito et al.
patent: 3883253 (1975-05-01), Naruse et al.
patent: 4358210 (1982-11-01), Hashimoto et al.
patent: 4619539 (1986-10-01), Kageyama
patent: 4687363 (1987-08-01), Kageyama
patent: 4955739 (1990-09-01), Kageyama et al.
patent: 5009533 (1991-04-01), Kageyama
patent: 5702193 (1997-12-01), Kageyama et al.

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