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Patent Searching and Data


Title:
OPERATING MACHINE
Document Type and Number:
Japanese Patent JPH0633484
Kind Code:
A
Abstract:

PURPOSE: To prevent the vibration of a counterweight having larger weight ratio against the entirety of an operating machine, prevent the vibration thereof and enhance the residential status of an operation room.

CONSTITUTION: A vibration regulator 31 is provided between a mounting section 19 formed in a main frame forming a swiveling frame and a mount section 20 of a counterweight 7. The vibration regulator 31 is approximately constituted of rubber vibration insulators 32 and 32 and stoppers 33 and 33 positioning upward and downward of the mounting section 19, spacers 34 inserting the mounting section 19 and rubber vibration insulators 32 thereinto and being positioned by the stoppers 33 in up and down directions and a bolt member 35 screwed to a nut member 21. Vibration energy in up and down directions of the counterweight 7 is absorbed by the rubber vibration insulators 32 to prevent vibration.


Inventors:
RO, Akinori
Application Number:
JP1992000213531
Publication Date:
February 08, 1994
Filing Date:
July 17, 1992
Export Citation:
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Assignee:
HITACHI CONSTR MACH CO LTD
International Classes:
B62D55/06; B66C23/72; B66F9/075; E02F9/18; (IPC1-7): E02F9/18; B62D55/06; B66F9/075
Attorney, Agent or Firm:
広瀬 和彦



 
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