PINCH VALVE - ASAHI ORGANIC CHEM IND

Title:

PINCH VALVE

Document Type and Number:

WIPO Patent Application WO/2002/004849

Kind Code:

A1

Abstract:

A pinch valve, comprising a main body (18) having an elastic tube body (1) stored therein, a cylinder main body (6) having a first cylinder part (3) positioned on the inside upper side of the main body and a second cylinder part (4) diverged from the first cylinder part positioned on the inside lower side thereof, a first piston (7) brought into contact slidably with the inner peripheral surface of the first cylinder part, and a second piston (12) brought into contact slidably with the inner peripheral surface of the second cylinder part, wherein a first connection bar (8) having a first press-holding element (10) is installed at the lower end of the first piston, second connection bars (13, 13) having a second press-holding element (14) are installed at the lower end of the second piston, the first and second press-holding elements are disposed so as to hold the tube body from upper and lower sides, springs (15) energizing the first press-holding element are disposed between the second piston and the first press-holding element, and an opening (27) communicating with a space part (19) surrounded by the first and second pistons and cylinder main body is provided in the cylinder main body.

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Inventors:

INOUE WATARU (JP)
FURUKAWA SHIGENOBU (JP)

Application Number:

PCT/JP2001/004335

Publication Date:

January 17, 2002

Filing Date:

May 23, 2001

Export Citation:

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Assignee:

ASAHI ORGANIC CHEM IND (JP)
INOUE WATARU (JP)
FURUKAWA SHIGENOBU (JP)

International Classes:

F16K7/06; F16K7/07; F16K31/122; (IPC1-7): F16K7/07

Foreign References:

JPS5442016Y2	1979-12-07
JPS453264Y1	1970-02-13
JPS609491Y2	1985-04-03
JPS6241474A	1987-02-23
JPS4411585Y1	1969-05-14

Other References: