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Title:
MULTIPLE TYPE WRITING UTENSIL
Document Type and Number:
Japanese Patent JPH07276884
Kind Code:
A
Abstract:

PURPOSE: To inexpensively obtain a multiple type writing utensil wherein a plurality of writing bodies can be brought in and out of a fore end port of a fore holder selectively by rotating a cap and also a rubber eraser can be brought in and out by rotating a top crown in the rear end.

CONSTITUTION: A projection 17 provided on the outer peripheral part of a cylindrical cam 5 is fitted elastically in a peripheral groove 19 provided in the outer peripheral part in the rear of a middle holder l. The cylindrical cam 5 is prevented from slipping off the middle holder 1, while it is made rotatable in relation to this holder, and a tube part having a slit 37 is provided integrally in the rear of the cylindrical cam 5. On the other hand, a helical groove 36 is formed in the inner hole part of a top crown 34 made of resin and a cap 4 of resin wherein the tube part of the cylindrical cam 5 is fitted is formed. A rubber eraser holder 40 holding a rubber eraser 46 is fitted in the tube part of the cylindrical cam 5. The fore end of a writing body is brought in and out by rotating the cap 4 in relation to a fore holder or the middle holder 1, while the rubber eraser can be brought in and out by rotating a tube part 34' of the top crown in relation to the cap.


Inventors:
KOBAYASHI SEIICHI
SEKIGUCHI NAOKI
Application Number:
JP9703594A
Publication Date:
October 24, 1995
Filing Date:
April 12, 1994
Export Citation:
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Assignee:
MITSUBISHI PENCIL CO
International Classes:
B43K29/02; B43K24/18; (IPC1-7): B43K24/18; B43K29/02



 
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