Excavating assembly with pivot fastening system

Abstract

A lock assembly includes a lock body with a bore extending from a top surface to a lateral side surface and a pin configured for receipt in the bore. A wear member configured for use with the lock assembly has an upper leg, a passage extending through the upper leg, and a fixation base recess formed into a lower side of the upper leg. The fixation base recess extends laterally between two opposing channels each having a lower surface angled downward toward each other. A fixation base configured for use with the lock assembly has a central opening extending through the top surface and bounded at a front side by a lock wall configured to engage a portion of a lock. Opposing first and second wings extend upward and laterally outward away from the central opening and have a lower surface angled downward toward the central opening.

1 . A lock assembly for securing a wear member to a support structure, comprising:
 a lock body comprising:
 a top surface; 
 a first lateral side surface; and 
 a bore extending linearly along an axis that intersects the top surface and the first lateral side surface; and 
   a pin configured to be received in the bore of the lock body, the pin comprising:
 a head; 
 a tip; and 
 a shaft extending between the head and the tip, the pin having a retracted configuration in which the tip is retained within the bore and a seated configuration in which the shaft extends laterally outward from the bore beyond the first lateral side surface. 
   
     
     
         2 . The lock assembly of  claim 1 , wherein the pin is configured to transition between the retracted and seated configurations by rotation about the axis. 
     
     
         3 . The lock assembly of  claim 2 , wherein the bore of the lock body comprises a first set of threads and the shaft of the pin comprises a second set of threads corresponding to the first set of threads. 
     
     
         4 . The lock assembly of  claim 3 , wherein the lock body further comprises a pin detent mechanism, a portion of the pin detent mechanism extending into the bore, the pin further comprising a first indentation disposed along an upper portion of the second set of threads, the first indentation being configured to receive the portion of the pin detent mechanism when the pin is in the seated configuration. 
     
     
         5 . The lock assembly of  claim 4 , wherein the pin detent mechanism comprises a flexible member and a rigid member secured to the flexible member, the portion of the pin detent mechanism extending into the bore comprising a portion of the rigid member. 
     
     
         6 . The lock assembly of  claim 5 , wherein the pin further comprises a second indentation disposed along a lower portion of the second set of threads, the second indentation being configured to receive the portion of the pin detent mechanism when the pin is in the retracted configuration, wherein engagement of the portion of the pin detent mechanism with the second indentation retains the tip of the pin in the bore and resists rotation of the pin. 
     
     
         7 . The lock assembly of  claim 5 , wherein a first recess is formed into the top surface of the lock body and the bore opens into the first recess. 
     
     
         8 . The lock assembly of  claim 7 , wherein a second recess is formed into the lock body and extends between the bore and the first recess, the second recess configured to receive the flexible member of the pin detent mechanism. 
     
     
         9 . (canceled) 
     
     
         10 . The lock assembly of  claim 1 , wherein the lock body further comprises:
 a second lateral side surface disposed on a side of the lock body opposite the first lateral side surface; and   a bottom surface extending between the first lateral side surface and the second lateral side surface.   
     
     
         11 . (canceled) 
     
     
         12 . The lock assembly of  claim 10 , wherein the first lateral side surface of the lock body is wider than the second lateral side surface. 
     
     
         13 . The lock assembly of  claim 10 , wherein the lock body further comprises a toe extending laterally outward from the second lateral side surface, the toe having an upper surface facing upward and away from the second lateral side surface and a lower surface facing downward and away from the second lateral side surface. 
     
     
         14 - 20 . (canceled) 
     
     
         21 . A wear member assembly, comprising:
 a wear member comprising:
 an upper leg extending rearward away from a leading edge of the wear member, the leading edge configured to engage ground, to a rear surface; 
 a laterally oriented passage extending through the upper leg from a top surface of the upper leg; and 
 a support structure recess formed into a lower side of the upper leg and extending rearward through the rear surface of the upper leg, the support structure recess configured to receive a support structure when the wear member is secured to excavating equipment, the passage extending into the support structure recess; and 
   a lock assembly comprising:
 a lock body comprising:
 a top surface; 
 a first lateral side surface; and 
 a bore extending linearly along an axis that intersects the top surface and the first lateral side surface; and 
 
 a pin configured to be received in the bore of the lock body, the pin comprising:
 a head; 
 a tip; and 
 a shaft extending between the head and the tip, the pin having a retracted configuration in which the tip is retained within the bore and a seated configuration in which the shaft extends laterally outward from the bore beyond the first lateral side surface. 
 
   
     
     
         22 . (canceled) 
     
     
         23 . The wear member assembly of  claim 21 , wherein the lock body further comprises a biased detent mechanism extending from a side of the lock body, the biased detent mechanism comprising a rigid member secured to a flexible member, the flexible member being disposed within a pocket formed into the lock body and the rigid member extending outward away from the pocket. 
     
     
         24 - 26 . (canceled) 
     
     
         27 . The wear member assembly of  claim 21 , wherein the lock body and passage are sized and shaped such that the lock body is installable into the passage in only one orientation about a vertical axis. 
     
     
         28 . (canceled) 
     
     
         29 . The wear member assembly of  claim 21 , wherein the lock body further comprises:
 a front surface;   a bottom surface; and   a rear surface, the front surface being tapered outward from the bottom surface to the top surface of the lock body.   
     
     
         30 . The wear member assembly of  claim 29 , wherein the front surface of the lock body is angled at approximately 1-10° with respect to a vertical plane. 
     
     
         31 . The wear member assembly of  claim 21 , wherein the lock body further comprises:
 a second lateral side surface disposed on a side of the lock body opposite the first lateral side surface; and   a bottom surface extending between the first lateral side surface and the second lateral side surface.   
     
     
         32 . The wear member assembly of  claim 31 , wherein the bottom surface is planar. 
     
     
         33 . The wear member assembly of  claim 31 , wherein the first lateral side surface of the lock body is wider than the second lateral side surface, a first sidewall of the passage has a width corresponding to the first lateral side surface of the lock body and a second sidewall of the passage has a width corresponding to the second lateral side surface of the lock body, the width of the second sidewall of the passage being less than the width of the first lateral side surface of the lock body. 
     
     
         34 . The wear member assembly of  claim 31 , wherein the lock body further comprises a toe extending laterally outward from the second lateral side surface. 
     
     
         35 . The wear member assembly of  claim 31 , wherein the lock body further comprises:
 a front surface extending between the first lateral side surface and the second lateral side surface; and   a rear surface disposed on a side of the lock body opposite the front surface.   
     
     
         36 . The wear member assembly of  claim 35 , wherein at least a portion of the front surface of the lock body and at least a portion of the rear surface of the lock body are angled outward away from one another from the bottom surface of the lock body to the top surface of the lock body. 
     
     
         37 - 39 . (canceled) 
     
     
         40 . The wear member assembly of  claim 21 , wherein when the lock body is seated within the passage of the wear member, the top surface of the lock body is positioned in the passage and a bottom surface of the lock body is substantially flush with a bottom surface of the upper leg of the wear member. 
     
     
         41 - 75 . (canceled) 
     
     
         76 . A wear member assembly comprising:
 a fixation base disposed on a lip and positioned behind a leading edge of the lip, the fixation base comprising:
 a bottom surface; 
 a top surface; 
 a central opening extending through the top surface, wherein the central opening is bounded at a front side by a lock wall and laterally by opposing first and second sidewalls, each of the first and second sidewalls including a lock recess; and 
 opposing first and second wings extending upward and laterally outward away from the central opening; 
   a wear member comprising:
 an upper leg extending rearward away from a leading edge of the wear member, the leading edge configured to engage ground, to a rear surface; 
 a passage extending through the upper leg from a top surface of the upper leg; and 
 a fixation base recess formed into a lower side of the upper leg and extending rearward through the rear surface of the upper leg, the fixation base recess configured to receive a fixation base when the wear member is secured to excavating equipment, the passage extending into the fixation base recess; and 
   a lock assembly comprising:
 a lock body comprising:
 a top surface; 
 a first lateral side surface; and 
 a bore extending linearly along an axis that intersects the top surface and the first lateral side surface; and 
 
 a pin configured to be received in the bore of the lock body, the pin comprising:
 a head; 
 a tip; and 
 a shaft extending between the head and the tip, the pin having a retracted configuration in which the tip is retained within the bore and a seated configuration in which the shaft extends laterally outward from the bore beyond the first lateral side surface; 
 
   wherein the lock assembly is positionable through the top surface of the upper leg of the wear member such that a lower portion of the lock body is disposed in the central opening of the fixation base and an upper portion of the lock body is disposed in the passage of the wear member, and wherein when the pin of the lock assembly is in the seated configuration, the lock assembly is secured in the fixation base with the tip of the pin disposed in the lock recess of the first sidewall and a portion of the lock body opposite the first lateral side surface disposed in the recess of the second sidewall.   
     
     
         77 - 83 . (canceled)