Title:
NONCONTACT MEASURING INSTRUMENT AND ANTI-TWO-BLOCK DEVICE USING DETECTOR
Document Type and Number:
Japanese Patent JPH11311513
Kind Code:
A
Abstract:
To provide the anti-two-block device which includes the noncontact measuring instrument.
Of the anti-two-block device, the noncontact measuring instrument 10 detects the distance from a boom nose 60 to a load support member 40 supported thereby by one method or another method. When the detected distance is smaller than a specific threshold value, the device 10 gives a warning or start other operation so that the operator prevents anti-two-blocking.
Inventors:
BANKS WILL W
ECKSTINE DENNIS W
FLEAGLE JON E
BONESTEEL OLIVER P
EYLER FRANCIS R
ECKSTINE DENNIS W
FLEAGLE JON E
BONESTEEL OLIVER P
EYLER FRANCIS R
Application Number:
JP37729298A
Publication Date:
November 09, 1999
Filing Date:
December 07, 1998
Export Citation:
Assignee:
GROVE US LLC
International Classes:
B60R21/00; B60T7/12; B66C13/46; B66C13/50; B66C15/04; B66C23/78; B66C23/90; B66F9/24; B66F11/04; B66F17/00; E04G1/24; F15B15/28; F16J1/02; F16J10/00; G01B11/02; G01B21/00; G01B21/02; G01C15/00; G01S13/88; G01S13/93; G01S13/931; G01S15/88; G01S15/93; G01S15/931; G01S17/88; G01S17/93; G01S13/02; G01S13/87; (IPC1-7): G01B21/02; B66C13/46; G01C15/00
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)