Title:
ELECTRIC CIRCUIT FOR SELF-TRAVELING TYPE CONSTRUCTION WASTE MATERIAL CRUSHER
Document Type and Number:
Japanese Patent JP3170157
Kind Code:
B2
Abstract:
PURPOSE: To enable selective operation in a working position by providing an upper control panel and a lower control panel respectively with working alternate switches for operating each actuator.
CONSTITUTION: When a required actuator is switch-operated, one required working alternate switch in an upper control panel 12 and one working alternate switch in a lower control panel 11, with the respective one side contacts and other side contacts thereof communicated with each other are both operated to be pushed in or pulled out. A current thereby flows to the solenoid of a solenoid change-over valve for controlling this actuator. When the emergency stop alternate switch 31' of the upper control panel 12 is operated to be pushed in, for instance, emergency stop indicating lamps 32', 32 are both lighted, and even if a power circuit to solenoids for solenoid change-over valves 15, 17, 19, 21 is opened by the emergency stop alternate switch 31' or 31, there is no influence on the lamp circuit of a work indicating lamp provided at each working alternate switch.
Inventors:
Eiichi Sawa
Application Number:
JP25291194A
Publication Date:
May 28, 2001
Filing Date:
September 20, 1994
Export Citation:
Assignee:
Kobelco Construction Machinery Engineering Co., Ltd.
International Classes:
E04G23/08; (IPC1-7): E04G23/08
Attorney, Agent or Firm:
Kan Akeda
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