STRUCTURE FOR SECURING DIAPHRAGM, DIAPHRAGM PUMP AND VALVE DEVICE PROVIDED WITH SAID STRUCTURE, AND METHOD FOR SECURING DIAPHRAGM

Title:

STRUCTURE FOR SECURING DIAPHRAGM, DIAPHRAGM PUMP AND VALVE DEVICE PROVIDED WITH SAID STRUCTURE, AND METHOD FOR SECURING DIAPHRAGM

Document Type and Number:

WIPO Patent Application WO/2015/141278

Kind Code:

A1

Abstract:

A diaphragm (3), which separates a space (20) into a first chamber (21) and a second chamber (22), is secured to a case (2), which forms the space (20) in the interior, by means of a securing structure (4). The case (2) is provided with: a first frame (5) which has a first concave part (50) for forming the first chamber (21) side; and a second frame (6) having a second concave part (60) for forming the second chamber (22) side. A peripheral edge part (32) of the diaphragm (3) is held by being compressed between the first frame (5) and the second frame (6) as a consequence of the first frame (5) and the second frame (6) fitting into one another. The securing structure (4) is also provided with a fastening tool (7) which fastens a first arm part (52) of the first frame (5) and a second arm part (62) of the second frame (6) from the outside of the case (2).

Inventors:

ISHIMARU TAKESHI (JP)
MORITA KOUHEI (JP)

Application Number:

PCT/JP2015/051851

Publication Date:

September 24, 2015

Filing Date:

January 23, 2015

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)

International Classes:

F16J3/02; F04B43/02; F04B43/06; F16J15/52; F16K7/12

Foreign References:

JPS49130266U	1974-11-08
JPS5148373U	1976-04-10
JPS60155667U	1985-10-17

Other References: