Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1978-01-18
1980-06-17
Kunin, Stephen G.
Material or article handling
Vertically swinging load support
Shovel or fork type
280421, 414607, E02F 396
Patent
active
042081637
ABSTRACT:
A coupling between a tool attachment adapted to be supported on a carrier and a tool mount fitting the tool attachment and adapted to support a tool, the tool mount carrying a fixed latch member and the tool attachment carrying a movable latch member which, when the tool attachment and the tool mount are in engagement, is movable into and out of locking engagement with the fixed latch member; a device for moving the latch member between locking and unlocking positions to thereby couple and decouple, respectively, the tool attachment and the tool mount; a hydraulic control circuit for supplying power to a tool supported on the tool mount, the circuit including a pair of two-part hose couplings, one part of each coupling being stationary on the tool mount and the other part carried on and movable relative to the tool attachment; and a device for moving the movable hose coupling parts relative to the tool attachment, in response to locking and unlocking movement of the movable latch member, in a manner such that during a coupling operation the hose coupling parts of each pair become engaged only after the movable latch member has arrived at a locking position and such that during a decoupling operation the coupling parts of each pair become disengaged before the movable locking member moves out of its locking position.
REFERENCES:
patent: 3243066 (1966-03-01), Gardner
Abraham George F.
Kunin Stephen G.
Renholmens Mekaniska Verkstad AB
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