Excavator tool quick attachment device

Details Excavator tool quick attachment device Excavator tool quick attachment device

2004-09-20

2009-02-24

Hartmann, Gary S (Department: 3671)

Excavating

Combined or convertible

Having quick-connect coupling

Reexamination Certificate

active

07493712

ABSTRACT:
Excavator tool quick attachment device (1) is used to attach a tool to a dipper arm (2) of an excavator. Body member (52) has two receivers (12,14) for tool pins (11,15). Receiver (12) has a movable latch (3) powered by an hydraulic ram (20) for securing and releasing pin (11) and receiver (14) has a movable spring loaded lock (22) for securing and releasing pin (15). A control assembly (21) is connected between latch (3) and lock (22) but only operates to release lock (22) when the device (1) is inverted relative to a normal working position and the hydraulic ram (20) is activated.

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