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Patent Searching and Data


Title:
EXAMINING DEVICE FOR BEARING FORCE OF OUTRIGGER JACK CONTACTING GROUND
Document Type and Number:
Japanese Patent JPH0611429
Kind Code:
A
Abstract:

PURPOSE: To provide a device to examine the bearing force of the ground part where the grounding plate 4 of an outrigger jack 1 is in contact, in advance prior to the crane works or high place operations.

CONSTITUTION: An outrigger jack concerned 1 consists of a guide part 2 dangling on the vehicle A side and an expansion/contraction part 3 which is equipped with a grounding plate 4 at the bottom and guided with possibility of being expanded and contracted in the direction downward in the guide part 2, and the bearing force examining device concerned is to be mounted on the outrigger jack 1 and to sense the bearing force of the ground part where the grounding plate 4 is in contact. The grounding plate 4 is equipped with a penetration sensing tool 6 so that it is movable between the protrusive position at the undersurface of the plate 4 and the non-protrusive position, while the guide part 2 has a penetration sensing tool pressing means 9 furnished with an expansion/contraction rod 9a, whose bottom at the time of elongation is detained with the penetration sensing tool 6 to push it in the direction of protruding.


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Inventors:
TADANO HISASHI
Application Number:
JP11097091A
Publication Date:
January 21, 1994
Filing Date:
April 15, 1991
Export Citation:
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Assignee:
TADANO TEKKOSHO KK
International Classes:
B60S9/02; B66C23/78; B66F7/24; B66F9/24; E02F9/08; G01N3/40; (IPC1-7): G01N3/40; B60S9/02; B66F9/24; E02F9/08