Wear assembly for an excavating bucket
First Claim
1. A wear assembly for a lip of an excavating bucket comprisinga base fixed to the lip and including a first bearing surface,a wear member including a front working portion and a rear mounting portion, the rear mounting portion including a second bearing surface, anda lock to be received between the first and second bearing surfaces to secure the wear member to the lip, the lock including a body having a passage with an open inlet end, a latch attached to the body for movement between a holding position and a release position, and a wedge having a leading end and a trailing end, the passage including a first thread formation and the wedge including a second thread formation that engages the first thread formation, the wedge tapering toward the leading end and being movably received into the passage of the body through the inlet end, the wedge engaging the latch to move the latch from the release position to the holding position as the leading end of the wedge is moved farther into the passage away from the inlet end, and the wedge being rotated to move the wedge in the passage.
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Accused Products
Abstract
A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib has a rear end that engages the base to hold the rear end of the rib between the base and the lip. The wear member further includes an interior surface that has a front portion formed with a curve to wrap around the digging edge and a plurality of stabilizing surfaces. The lock has a latch and a threaded wedge received into the passage to move the latch to its holding position to maintain the lock in the assembly during use.
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Citations
16 Claims
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1. A wear assembly for a lip of an excavating bucket comprising
a base fixed to the lip and including a first bearing surface, a wear member including a front working portion and a rear mounting portion, the rear mounting portion including a second bearing surface, and a lock to be received between the first and second bearing surfaces to secure the wear member to the lip, the lock including a body having a passage with an open inlet end, a latch attached to the body for movement between a holding position and a release position, and a wedge having a leading end and a trailing end, the passage including a first thread formation and the wedge including a second thread formation that engages the first thread formation, the wedge tapering toward the leading end and being movably received into the passage of the body through the inlet end, the wedge engaging the latch to move the latch from the release position to the holding position as the leading end of the wedge is moved farther into the passage away from the inlet end, and the wedge being rotated to move the wedge in the passage.
- 7. A lock for securing a wear member to excavating equipment comprising a body including a passage with an open inlet end, a latch attached to the body for movement between a holding position and a release position, and a wedge having a leading end and a trailing end, the passage including a first thread formation and the wedge including a second thread formation that engages the first thread formation, the wedge tapering toward the leading end and being movably received into the passage of the body through the inlet end, the wedge engaging the latch to move the latch from the release position to the holding position as the leading end of the wedge is moved farther into the passage away from the inlet end, and the wedge being rotated to move the wedge in the passage.
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13. A lock for securing a wear member to excavating equipment comprising:
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a body including a passage with an open inlet end and at least one helical ridge segment; a wedge axially received into the passage of the body through the inlet end, the wedge having (i) a leading end and a trailing end and tapering toward the leading end, (ii) a helical groove engaging the helical ridge segment in the passage, and (iii) a tool-engaging formation for rotating the wedge in the passage to axially move the wedge in the passage by the engagement of the groove and the ridge; and a latch pivotally attached to the body for movement between a holding position and a release position, the latch having a front surface with a projection for engaging a stop on the wear member to hold the lock in place during use and a rear surface to engage the wedge and be pressed by the wedge into the holding position. - View Dependent Claims (14, 15, 16)
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Specification