Coating implements with material supply – Solid material for rubbing contact or support therefor – Including holder
Reexamination Certificate
2009-12-11
2010-10-19
Walczak, David J (Department: 3751)
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including holder
C401S092000
Reexamination Certificate
active
07815385
ABSTRACT:
A chuck unit (4) for grasping a writing lead (10) and a rotor (6) arranged to be movable in a direction of rotation and an axial direction within a body cylinder (1) are provided. First and second cam faces (6a) and (6b) are respectively formed at one end face and another end face of the rotor in the axial direction, and first and second fixed cam faces (13a) and (17a) are arranged on the body cylinder side to face the first and second cam faces respectively. The first cam face in the rotor is brought into abutment with and meshed with the first fixed cam face by retreat operation of the chuck unit under writing pressure, and the second cam face in the rotor is brought into abutment with and meshed with the second fixed cam face by releasing the writing pressure, so that the rotor rotates, whereby the writing lead also rotates.
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International Search Report of PCT/JP2007/061178, mailing date of Aug. 14, 2007.
Chinese Office Action dated Dec. 4, 2009, issued in corresponding Chinese Patent Application No. 2007-800208313.
Fukumoto Takeo
Izawa Hirotake
Nakayama Kyo
Ohsawa Norio
Osano Yoshitoshi
Mitsubishi Pencil Co. Ltd.
Walczak David J
Westerman Hattori Daniels & Adrian LLP
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