Title:
DOOR OPENING HOLDING VALVE
Document Type and Number:
Japanese Patent JP2018044648
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To keep a vehicle door at a desired opening in a vehicle door opening or closing device utilizing a negative pressure at an intake manifold of a vehicle engine.SOLUTION: This invention relates to a door opening holding valve 1 interposed between an air cylinder A and a changeover valve TV in a driving part of a vehicle door opening or closing device. There are provided a first flow passage 2 connecting a first port V1 and a head side port P1 of the changeover valve TV and a second flow passage 3 connecting a second port V2 and a tail-side port P2 of the changeover valve TV. There are provided a first valve body 9 and a second valve body 10 for opening or closing a first valve port 5 and a second valve port 6 arranged between an upstream side and a downstream side of the first flow passage 2 and the second flow passage 3 through an operation of the changeover valve TV, the first valve body 9 and the second valve body 10 are closed under the door opening holding operation performed by the changeover valve TV having an atmospheric pressure source AP communicated with each of the upstream of the first flow passage 2 and the second flow passage 3 and the downstream of the first flow passage 2 and the second flow passage 3 are set to be tightly closed.SELECTED DRAWING: Figure 7
Inventors:
AZUMA KOICHI
KONDO HIROKI
KONDO HIROKI
Application Number:
JP2016181557A
Publication Date:
March 22, 2018
Filing Date:
September 16, 2016
Export Citation:
Assignee:
TOSHINTEC KK
International Classes:
F16K11/04
Attorney, Agent or Firm:
Kinichi Nishiyama