Title:
AIR PUMP
Document Type and Number:
Japanese Patent JP2005330824
Kind Code:
A
Abstract:
To provide an air pump capable of preventing a bearing from coming off a housing or loosening up when the bearing and a housing are constructed with members of different thermal expansion in a bearing part of an air pump.
In the air pump, a bushing which is constructed with a material of the same group as a ball bearing is firmly attached to the housing beforehand and minute irregularity shaped projection is constructed on an outer circumference surface of the bushing to devise a means preventing the bushing from coming off and loosening up from the housing.
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Inventors:
TAKEUCHI YOSHIHARU
NAGATA TADASHI
AEBA YASUSHI
NISHIOKA TOSHIHIRO
SHIMADA KENJI
NAGATA TADASHI
AEBA YASUSHI
NISHIOKA TOSHIHIRO
SHIMADA KENJI
Application Number:
JP2004147446A
Publication Date:
December 02, 2005
Filing Date:
May 18, 2004
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F04B39/00; F04C27/00; F16C35/077; (IPC1-7): F04B39/00; F04C27/00; F16C35/077
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito
Tomoyasu Sakaguchi
Hiroki Naito