FLUID PRESSURE CYLINDER - PASCAL ENG CORP

Title:

FLUID PRESSURE CYLINDER

Document Type and Number:

WIPO Patent Application WO/2014/087756

Kind Code:

A1

Abstract:

Provided is a fluid pressure cylinder capable of detecting, through the fluid pressure, that the piston member has moved to a set movement position, and of opening/closing a detection on/off-valve mechanism in linkage with the piston member. The fluid pressure cylinder (2) is provided with: a rod insertion hole (20) formed in the piston member (4); an auxiliary rod (7) provided to a head-side end wall member (10B) of a main cylinder body (10), the auxiliary rod (7) capable of being inserted into the rod insertion hole (20); a detection on/off valve mechanism (11); and a fluid channel (32) opened/closed by the detection on/off valve mechanism (11). The detection on/off valve mechanism (11) has: a valve body housing hole (35) formed in the auxiliary rod (7); a valve body (36) housed in the valve body housing hole (35), the valve body (36) having an engaging recess (37) on the outer peripheral part; and a sphere body (38) mounted on the auxiliary rod (7), the sphere body (38) capable of engaging with the engaging recess (37). When the piston member (4) moves to the set movement position, the sphere body (38), the engaging recess (37), and a rod insertion hole inner peripheral wall part (39) operate in coordination to switch the valve body (36) to the open-valve position or the closed-valve position.

Inventors:

KAWAKAMI TAKAYUKI (JP)

Application Number:

PCT/JP2013/078846

Publication Date:

June 12, 2014

Filing Date:

October 24, 2013

Export Citation:

Click for automatic bibliography generation Help

Assignee:

PASCAL ENG CORP (JP)

International Classes:

B23Q3/06

Foreign References:

JP2012166276A	2012-09-06
JPS60129410A	1985-07-10
EP2177309A1	2010-04-21
JPH1130201A	1999-02-02
JP2012166275A	2012-09-06
JP2001087991A	2001-04-03
JP2003305626A	2003-10-28
JP2009125821A	2009-06-11

Other References: