Title:
A spreading device and a boom damping device
Document Type and Number:
Japanese Patent JP6220697
Kind Code:
B2
Abstract:
A boom damping device includes a fluid pressure cylinder configured to perform an expansion/contraction operation in conjunction with rotational movement of a boom in a roll direction of a working vehicle, a first pressure accumulator into/out of which an operating fluid flows through a first passage with the expansion/contraction operation of the fluid pressure cylinder, a second pressure accumulator into/out of which the operating fluid flows through a second passage with the expansion/contraction operation of the fluid pressure cylinder, and a shut-off switch configured to shut off the first passage and configured to shut off the second passage if at least either one of a right boom and a left boom is not at a working position expanded in a right-and-left direction of the working vehicle.
Inventors:
Tatsuo Ito
Takanori Inada
Takanobu Yoshida
Minamikami
Atsushi Ota
Akashi Masaki
Yasuo Tanaka
Tokuda Hiroki
Takanori Inada
Takanobu Yoshida
Minamikami
Atsushi Ota
Akashi Masaki
Yasuo Tanaka
Tokuda Hiroki
Application Number:
JP2014029482A
Publication Date:
October 25, 2017
Filing Date:
February 19, 2014
Export Citation:
Assignee:
KYB Corporation
National Institute for Agricultural and Food Industry Research Organization
Yamabiko Co., Ltd.
KYB Engineering and Service Co., Ltd.
National Institute for Agricultural and Food Industry Research Organization
Yamabiko Co., Ltd.
KYB Engineering and Service Co., Ltd.
International Classes:
A01M7/00
Domestic Patent References:
| JP2013103A | ||||
| JP2010115137A | ||||
| JP9163813A | ||||
| JP2001269106A |
Attorney, Agent or Firm:
Goto Patent Office
Masaki Goto
Masaaki Iida
Atsushi Sudo
Masaki Goto
Masaaki Iida
Atsushi Sudo