Title:
【発明の名称】デッキ昇降装置
Document Type and Number:
Japanese Patent JP3374063
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a deck elevator that prevents a deck from standing and rotating even with an operational mistake when there is a person on the deck. SOLUTION: A relief valve VRA is connected to an oil passage L0 between an oil supply source P and switching valves V1 , V2 . The relief valve VRA does not operate when an actuator M elevates an elevation body with a person on the deck, and when an actuator C makes the deck to stand up without a person on the deck. On the other hand, it operates when an actuator C makes the deck to stand up with a person on the deck.
Inventors:
Junichi Kusakari
Application Number:
JP31689897A
Publication Date:
February 04, 2003
Filing Date:
November 18, 1997
Export Citation:
Assignee:
Far East Development Industry Co., Ltd.
International Classes:
B60P1/44; A61G3/00; B60P3/00; (IPC1-7): B60P1/44; A61G3/00
Domestic Patent References:
| JP1301423A | ||||
| JP3197243A |
Attorney, Agent or Firm:
Ken Ochiai (1 person outside)