Mechanical pencil

Details Mechanical pencil Mechanical pencil

2008-10-15

2010-12-14

Walczak, David J (Department: 3751)

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including holder

C401S092000

Reexamination Certificate

active

07850380

ABSTRACT:
A chuck (4) for grasping a writing lead and a rotor (6) arranged to be movable in a direction of rotation and an axial direction within a body cylinder (1). By axial movement of the rotor in conjunction with writing operation, the rotor rotates and the writing lead is also subjected to rotational movement. The writing lead can be inched out of the chuck by way of knock operation of the knock cover (26) arranged at a rear end port ion of the body cylinder. A separation part having a gap (G) is formed at any location along a knock operation transmitting path between the above-mentioned knock cover and the above-mentioned chuck, the separation part transmits the above-mentioned knock operation to the above-mentioned chuck and inhibits rotation operation from being transmitted.

REFERENCES:
patent: 6481908 (2002-11-01), Lychwick
patent: 6702495 (2004-03-01), Lychwick
patent: 54-25339 (1979-02-01), None
patent: 56-19382 (1981-02-01), None
patent: 59-107286 (1984-07-01), None
patent: 10-329485 (1998-12-01), None
patent: 11-99795 (1999-04-01), None
patent: 3882272 (2007-02-01), None
patent: 3885315 (2007-02-01), None
International Search Report of PCT/JP2008/068630, maling date of Nov. 18, 2008.

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