Coupling arrangement

A lock for releasably coupling a wear component to an excavator, the lock comprising a body and a locking member secured to the body for movement between a release position and a locking position, the locking member including a shank having a non-circular cross sectional configuration, the body including a resilient part having a hole for receiving the shank, the resilient part being in generally a relaxed state when the locking member is in the release and locking positions, and the resilient part being in a stretched state when the locking member is moving between the release and locking positions.

A lock for releasably coupling a wear component to a base component for excavating equipment, the wear and base components including generally aligned holes to form a lock receiving opening, the lock comprising a body and a locking member being coupled together to form an integral unit for insertion into the opening along an axis, the locking member being secured to the body for movement limited to rotation about the axis between a release position and a locking position, the body and the locking member cooperatively defining an outline shape with the locking member in the release position for receipt in the lock receiving opening, and the locking member being at least partially outside of the outline shape when the locking member is in the locking position such that at least part of the locking member sets opposite an inner surface of the wear component to prevent removal of the lock from the lock receiving opening.

A lock for releasably coupling a wear component to a mounting portion of an excavator, the wear component and mounting portion each defining an opening that are generally aligned for receiving the lock, the lock comprising:

• a body and a locking member secured to the body for rotation between a release position and a locking position,
• wherein, in the locking position, the body and the locking member bear against a first rearward-facing surface of the opening in the mounting portion and a second forward-facing surface of the opening in the wear component to hold the wear component to the mounting portion,
• the body and the locking member defining a width between the first and second surfaces wherein the width is larger in the locking position than in the release position to tighten the fit of the wear component onto the mounting portion of the excavator.

A lock for releasably coupling a wear component to a base component for excavating equipment, the wear and base components including generally aligned holes to form a lock receiving opening, the lock comprising a body and a locking member rotatably mounted to the body for movement between a release position where the lock can be withdrawn from the lock receiving opening, and a locking position where the lock is prevented from being withdrawn from the lock receiving opening, the locking member including a head for rotating the locking member between the release and locking positions, and the head having a pair of opposite ledges for engagement by a tool for axially pulling the lock from the lock receiving opening.

A lock for releasably coupling a wear component to an excavator, the lock comprising a body and a locking member secured to the body for movement between a release position and a locking position, the locking member including a shank and the body including a resilient part having a hole for receiving the shank, the hole and the shank having conforming polygonal cross sectional shapes, the resilient part being in a first state when the locking member is in the release end locking positions, and the resilient part being in a second state stretched relative to the first state when the locking member is moving between the release and locking positions.

A wear assembly for an excavator comprising:

• a mounting portion of the excavator;
• a wear member shaped to complement the mounting portion for attachment to the excavator, the wear member and mounting portion collectively defining an opening:
• a lock for releasably coupling the wear component to the mounting portion of the excavator, the lock comprising a body and a locking member secured to the body for movement between a release position and a locking position, wherein the body and the locking member each includes a bearing surface, wherein the bearing surfaces face in opposite directions, wherein, in the locking position, one of the bearing surfaces engages the wear component and the other of the bearing surfaces engages the mounting portion of the excavator, wherein the bearing surfaces are spaced apart a first distance in the release position and a second distance in the locking position, and wherein the second distance is larger than the first distance to tighten the fit of the wear component onto the mounting portion of the excavator.

A wear assembly for an excavator comprising

• a base component fixed to the excavator and including a nose,
• a wear component having a socket to receive the nose, and a hole extending through the wear component to open in the socket, the hole having a peripheral outline, and
• a lock for releasably holding the wear component to the base component, the lock including a locking member having a shank and a lateral projection, the locking member being rotatable about a longitudinal axis of the shank between a release position and a locking position with the rotation being free of axial translation, the lateral projection being within the peripheral outline of the hole in the locking position such that the lateral projection is set between the nose and an interior surface of the wear component, and a non-rotating resilient member engaging a side of the shank to resist turning of the locking member between the release and locking positions.

A lock for holding a wear component to a base component that is fixed to an excavator comprising (i) a locking member having a shank and a lateral projection, the locking member being rotatable about a longitudinal axis of the shank between a release position and a locking position with the rotation being free of axial translation, the lateral projection being within the peripheral outline of a hole in the wear component in the release position and outside of the peripheral outline of the hole in the locking position such that the lateral projection is set between the base component and the wear component, and (ii) a non-rotation resilient member engaging a side of the shank to resist turning of the locking member between the release and locking positions.