Front Pin Lock for a Tool Attachment Device

摘要

A quick coupler (1) for attaching a tool (2), comprising an attachment bracket with two parallel attachment pins (3a, 3b), to an earth moving vehicle, where the quick coupler (1) comprises a frame (4) with a first cutout (5) and a second cutout (6) arranged ranged substantially perpendicular to each other, which are adapted to cooperate with the respective attachment pin (3a, 3b) of the tool (2). The quick coupler (1) further comprises at least one, in relation to the frame (4) moveable locking arrangement (9), adapted to delimit the second cutout (6) in a direction parallel to the first cutout (5), whereby one of the attachment pins (3aq, 3b) of the tool is locked in the second cut-out (6) and at least one locking segment (18a, 18b) arranged to be rotated in relation to the frame (4) in at least a first and a second direction between different positions, whereby the locking segment (18a, 18b) in at least one position de-limit the first cut-out (5) and locks the second of the attachment pins (3a, 3b) of the tool.

主权项

1. A quick coupler for attaching a tool, comprising an attachment bracket with two parallel attachment pins, to an earth moving vehicle, wherein the quick coupler comprises
a frame with a first cutout and a second cutout arranged substantially perpendicular to each other, where the respective cutout is adapted to cooperate with the respective attachment pin of the tool, at least one, in relation to the frame moveable locking arrangement, adapted to delimit the second cutout in a direction parallel to the first cutout, whereby one of the attachment pins of the tool is locked up in the cutout, at least one, in the frame arranged, actuator adapted to move the locking arrangement between a first open and a second locked position, and at least one locking piston arranged to move the locking arrangement between an inner and an outer position, at least one locking segment arranged to be rotated in relation to the frame in a first and a second direction between different positions, whereby the locking segment in at least one position delimit the first cut-out, characterized in that the at least one actuator is arranged between the locking arrangement and the at least one locking piston and is arranged to move both the locking arrangement and the at least one locking piston in relation to the frame, that the at least one locking segment is arranged in relation to the locking piston so that the at least one locking segment is prevented to rotate in a first direction when the locking arrangement is in a locked position and is a allowed to rotate in the first direction when the locking arrangement is in an open position, that the at least one locking segment is arranged in relation the locking piston so that the locking segment is allowed to rotate in a second rotation direction when the locking arrangement is in either a locked or an open position, where the at least one locking segment is arranged to rotate in relation to the at least one locking piston.