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Patent Searching and Data


Title:
ELECTROMAGNETIC VIBRATING DIAPHRAGM PUMP
Document Type and Number:
WIPO Patent Application WO/2013/065344
Kind Code:
A1
Abstract:
Provided is an electromagnetic vibrating diaphragm pump with which improved work efficiency when assembling the diaphragm to the center plate, reduced production cost, and stabilization of performance between products are possible. A disc-shaped second plate (7b) comprises, in the central part of the surface that contacts the diaphragm (4), a cruciform protruding part (21) in which depressions (20) are formed and a second ring-shaped rib (29) that is formed on the outer diameter side thereof. A disc-shaped first plate (7a) has a first ring-shaped rib formed in the central part of the surface that contacts the diaphragm (4) and said first ring-shaped rib forms an assembly groove provided with protrusions that are pressed and fitted into the depressions (20). Around the central through hole (26), the disc-shaped diaphragm (4) has diaphragm effusion-preventing protrusions (28) that protrude from each of the two surfaces of the diaphragm (4) and with which the ring-shaped ribs engage from the outer circumferential side.

Inventors:
ISHII HIDEKI (JP)
TAKAMICHI TSUYOSHI (JP)
Application Number:
PCT/JP2012/061581
Publication Date:
May 10, 2013
Filing Date:
May 02, 2012
Export Citation:
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Assignee:
TECHNO TAKATSUKI CO LTD (JP)
ISHII HIDEKI (JP)
TAKAMICHI TSUYOSHI (JP)
International Classes:
F04B45/04; F04B45/047
Foreign References:
JP2008150959A2008-07-03
JP2005220769A2005-08-18
JP2000130340A2000-05-12
JP2009178981A2009-08-13
Other References:
See also references of EP 2639455A4
Attorney, Agent or Firm:
KAWAMURA, Kiyoshi et al. (JP)
Kiyoshi Kawamura (JP)
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Claims: