Title:
ALARM OF CONSTRUCTION MACHINE
Document Type and Number:
Japanese Patent JP2002212981
Kind Code:
A
Abstract:
To alarm an operator that a worker is found at a dead angle in the turning radius of a construction machine such as a backhoe.
An infrared emitter 7 is mounted on the worker 6, an infrared receiver 5 is attached to the construction machine 1, when the worker 6 enters an alarm area A far from the construction machine 1, the worker 6 is detected by the infrared receiver 5, and the alarm is given.
Inventors:
HARAOKA MITSURU
EMA SHIYOUGO
EMA SHIYOUGO
Application Number:
JP2001006398A
Publication Date:
July 31, 2002
Filing Date:
January 15, 2001
Export Citation:
Assignee:
KUMAGAI GUMI CO LTD
International Classes:
E02F9/24; G08B21/00; G08B21/24; (IPC1-7): E02F9/24; G08B21/00; G08B21/24
Domestic Patent References:
| JPH0720220A | 1995-01-24 | |||
| JPH10237906A | 1998-09-08 | |||
| JPH0999807A | 1997-04-15 |
Attorney, Agent or Firm:
Takayoshi Hayashi