Title:
HEAVY MACHINERY APPROACH ALARMING DEVICE
Document Type and Number:
Japanese Patent JP2000251172
Kind Code:
A
Abstract:
To surely report the approach of heavy machinery to an operator without depending on a monitoring person.
A base 2 is provided with the flexible pole 3 of a slide type for which the contact detection switch 4 of a spring type is provided on a head part and the base 2 is fixed to a covering plate 11 by magnetic attraction by a permanent magnet piece 22 attached to the base 2. When the heavy machinery approaches and contacts the contact detection switch 4 and the contact detection switch 4 is turned ON by being deflected, a rotary lamp device 6 with a buzzer is operated and the operator is alarmed by sound and light about the approach of the heavy machinery.
Inventors:
OMURA KEIICHI
Application Number:
JP5055699A
Publication Date:
September 14, 2000
Filing Date:
February 26, 1999
Export Citation:
Assignee:
TAISEI CORP
International Classes:
G08B21/00; E02B3/06; E02F9/26; G08B21/24; (IPC1-7): G08B21/00; E02B3/06; E02F9/26
Attorney, Agent or Firm:
Masatoshi Takano