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Patent Searching and Data


Title:
RECIPROCATING PUMP AND VACUUM PUMP
Document Type and Number:
Japanese Patent JP2004263686
Kind Code:
A
Abstract:

To provide a reciprocating pump that has a simple mechanism and is easily manufactured.

A diaphragm 56 constituting the reciprocating pump 35 partitions and forms an action chamber 351 between it and a valve presser 68. A columnar cam section 60 is integrated formed in a projecting part of a rotation driving shaft 33 projecting in a pump housing 34. An annular groove 50 is formed in the peripheral surface 601 of the cam section 60 so as to go round the peripheral surface 601 of the cam section 60. A roller 62 is rotatably supported on a cylinder section of a guide body 61 via a radial bearing 63. An end of the roller 62 as a movable body is inserted into the annular groove 50.


Inventors:
Yamamoto, Shinya
Kuramoto, Satoru
Hoshino, Nobuaki
Kuwabara, Mamoru
Sato, Daisuke
Yoshikawa, Makoto
Application Number:
JP2003000140944
Publication Date:
September 24, 2004
Filing Date:
May 19, 2003
Export Citation:
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Assignee:
TOYOTA INDUSTRIES CORP
International Classes:
F04B9/02; F04B9/04; F04B23/08; F04B35/01; F04B37/14; F04B37/16; F04B41/06; F04B43/02; F04B43/04; F04B45/00; F04B45/04; F04B45/047; F04C18/12; F04C23/00; (IPC1-7): F04B9/02; F04B37/16; F04B45/04
Attorney, Agent or Firm:
恩田 博宣
恩田 誠