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Patent Searching and Data


Title:
BOOM DEVICE AND BOOM TYPE WORK VEHICLE
Document Type and Number:
Japanese Patent JP2000014207
Kind Code:
A
Abstract:

To provide a boom device having good operability and, if necessary, making it possible to easily manually move a boom.

This boom device is provided with a manual boom drive- controlling device 36 which can release the hydraulic oil of a boom-driving hydraulic actuator 13 to manually drive the boom. The boom is usually driven by the power of the hydraulic actuator 13. If necessary, the device 36 for controlling the manual boom drive is operated to release the hydraulic oil of the hydraulic actuator 13, thus making it manually drive the boom.


Inventors:
Ishimura, Tadashi
Miki, Nobuyuki
Application Number:
JP1998000188433
Publication Date:
January 18, 2000
Filing Date:
July 03, 1998
Export Citation:
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Assignee:
KIORITZ CORP
International Classes:
A01M7/00; A01B63/10; B05B17/00; F15B9/08; (IPC1-7): A01B63/10; A01M7/00; B05B17/00; F15B9/08
Attorney, Agent or Firm:
山本 彰司