E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 9/28 (2006.01)
Patent
CA 2714471
A connection for firmly securing an adapter for detachably carrying a replaceable digging tooth at its front end to a lip of an excavating container of excavating equipment. The adapter has an upper leg and a lower leg located proximate respective upper and lower surfaces of the lip. The connection has substantially aligned openings in the legs and the lip, and engagement sections of the adapter legs traverse the opening in the lip proximate and forward of an aft end thereof. A pressure applying unit, such as a hydraulic actuator, is arranged inside the opening and generates a generally horizontally acting force which draws the adapter and the lip towards each other. A stress member, which can be a C-clamp, is operatively coupled to the hydraulic actuator and resiliently deforms relative to its relaxed shape when it is subjected to the horizontally acting force. A spacer, such as a wedge, is inserted between the hydraulic actuator and the openings while the horizontally acting force resiliently deforms the stress member. The wedge is shaped so that upon a reduction or cessation of the horizontally acting force the stress member, e.g. the C-clamp, remains in the resiliently deformed state in which it draws the adapter and the lip towards each other and keeps them immovably secured to each other until the wedge can be withdrawn following a repressurization of the hydraulic actuator.
Bierwith Robert S.
Fetherstonhaugh & Co.
LandOfFree
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