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Title:
LETTING-OUT DEVICE OF RODLIKE BODY
Document Type and Number:
Japanese Patent JP2005186441
Kind Code:
A
Abstract:

To solve the problem that a helical groove being an important structure is indented in a part and brought into a distorted state and, as the result, the engagement of a projection of a rodlike body support screwed in the helical groove becomes unstable, this hindering a letting-out motion or bringing about the possibility that when an eraser is used at the position of the engagement (screwing), the engagement is removed, depending on the erasing pressure of the eraser, and the eraser is merged in entirely.

In regard to the letting-out device of a rodlike body which has the helical groove formed inside a holder tube and wherein a thick wall part is formed in the holder tube, the helical groove is formed in a portion other than the thick wall part.


Inventors:
ISHII HIROSHI
YANAGAWA YOSHIAKI
MARUYAMA SHIGEKI
Application Number:
JP2003430564A
Publication Date:
July 14, 2005
Filing Date:
December 25, 2003
Export Citation:
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Assignee:
PENTEL KK
International Classes:
B43K23/016; A45D40/20; B43K21/16; B43K25/02; B43K29/02; B43L19/00; B65D83/00; (IPC1-7): B43K29/02; A45D40/20; B43K21/16; B43K23/016; B43K25/02; B43L19/00; B65D83/00
Domestic Patent References:
JPH0426784U1992-03-03
JPH0549388U1993-06-29
JPH09254588A1997-09-30
JPH0486776U1992-07-28
JPH0728689U1995-05-30
JPH10129174A1998-05-19
JPH10329486A1998-12-15
JP2000289387A2000-10-17
JP2002293083A2002-10-09



 
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