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Title:
POSITION DETECTOR FOR INFLATED SHEET
Document Type and Number:
Japanese Patent JPH11325261
Kind Code:
A
Abstract:

To ensure detection of the inflated and shrunk condition of an inflated sheet and of the position of the inflated sheet with a mechanical means.

An inflated sheet 6 formed of elastic material, inflated or shrunk ranging between an inflation position of pressing it against a valve seat 5 and a shrinkage position of separating it therefrom is provided on a base material 7, a detecting bar 22 set in and out in association with the inflating and shrinking operation of the inflated seat 6 is provided so as to pass a valve box 2 and the base material 7 from the outside through a pressure fluid sealing space S and an inflation detecting limit switch 27 and a shrinkage detecting limit switch 28 are provided on a supporting member 24 for detecting the backwarding position of the detecting bar 22 in the shrinkage of the inflated sheet 6 and the forwarding position of the detecting bar 22 in the inflation, respectively.


Inventors:
Nishikawa, Tamotsu
Application Number:
JP1998000129360
Publication Date:
November 26, 1999
Filing Date:
May 13, 1998
Export Citation:
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Assignee:
KUBOTA CORP
International Classes:
F16K1/22; F16K1/226; F16K1/36; F16K25/00; F16K39/02; (IPC1-7): F16K1/22; F16K1/36



 
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