US2023058442A1PendingUtilityA1

Wear member assembly for earth working bucket

30
Assignee: 9257 5810 QUEBEC INCPriority: Feb 5, 2020Filed: Feb 5, 2021Published: Feb 23, 2023
Est. expiryFeb 5, 2040(~13.5 yrs left)· nominal 20-yr term from priority
Inventors:Samuel Baril
E02F 9/2825
30
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A tooth adaptor for a leading edge of excavation equipment has a body having legs defining a cavity, the body adapted to be mounted to the excavation equipment by the leading edge received in the cavity. A tooth interface is at a leading end of the body, a contact surface of the body being defined in the cavity and being configured to be opposite a leading surface of the leading edge and in contact with the leading surface. A boss projects in a trailing direction from the contact surface, wherein at least one of contact surfaces including a slot extending in a leading-to-trailing direction of the tooth adaptor. The slot may define a flaring section in which sidewalks) of the slot diverges from the leading-to-trailing direction. A trailing surface(s) at an end of the legs has a flaring geometry flaring away from the tooth interface.

Claims

exact text as granted — not AI-modified
1 . A tooth adaptor for a leading edge of excavation equipment, comprising a body having legs defining a cavity, the body adapted to be mounted to the excavation equipment by the leading edge received in the cavity, a tooth interface at a leading end of the body, a contact surface of the body being defined in the cavity and being configured to be opposite a leading surface of the leading edge and in contact with the leading surface, a boss projecting in a trailing direction from the contact surface. 
     
     
         2 . The tooth adaptor according to  claim 1 , wherein the boss has an arcuate geometry. 
     
     
         3 . The tooth adaptor according to  claim 2 , wherein the boss has a cylindrical section surface. 
     
     
         4 . The tooth adaptor according to  claim 3 , wherein an axis of the cylindrical section surface is transverse to a leading-to-trailing direction. 
     
     
         5 . The tooth adaptor according to  claim 1 , wherein the contact surface has an arcuate geometry. 
     
     
         6 . The tooth adaptor according to  claim 5 , wherein the contact surface has a cylindrical section surface. 
     
     
         7 . The tooth adaptor according to  claim 1 , wherein the boss has a cylindrical section surface, the contact surface has a cylindrical section surface, and wherein projection of axes of the cylindrical section surfaces are perpendicular to a plane to which a vector of the leading to trailing direction is normal. 
     
     
         8 . The tooth adaptor according to  claim 1 , wherein at least one fillet is a junction between the contact surface and the boss. 
     
     
         9 . The tooth adaptor according to  claim 1 , wherein the tooth adaptor has a monoblock body. 
     
     
         10 . The tooth adaptor according to  claim 1 , wherein the body has a U-shape. 
     
     
         11 .- 12 . (canceled) 
     
     
         13 . A tooth adaptor for a leading edge of excavation equipment, comprising a body having legs defining a cavity, the legs having contact surfaces delimiting the cavity, the body adapted to be mounted to the excavation equipment by the leading edge received in the cavity, a tooth interface at a leading end of the body, wherein at least one of contact surfaces including a slot extending in a leading-to-trailing direction of the tooth adaptor, the slot defining a flaring section in which at least one sidewall of the slot diverges from the leading-to-trailing direction. 
     
     
         14 . The tooth adaptor according to  claim 13 , wherein the at least one sidewall diverges at an angle ranging between 1 and 15 degrees. 
     
     
         15 . The tooth adaptor according to  claim 13 , wherein both of the sidewalls of the slot diverge from the leading-to-trailing direction. 
     
     
         16 . The tooth adaptor according to  claim 13 , wherein the slot extends and opens to a trailing end of the tooth adaptor. 
     
     
         17 . The tooth adaptor according to  claim 13 , wherein the flaring section has a constant depth. 
     
     
         18 . The tooth adaptor according to  claim 13 , wherein the flaring section is adjacent to at least one straight section in which the sidewalls are parallel to the leading-to-trailing direction. 
     
     
         19 . The tooth adaptor according to  claim 13 , wherein both of the contact surfaces have one of the slot. 
     
     
         20 . (canceled) 
     
     
         21 . A tooth adaptor for a leading edge of excavation equipment, comprising a body having legs defining a cavity, the body adapted to be mounted to the excavation equipment by the leading edge received in the cavity, a tooth interface at a leading end of the body, and at least one trailing surface at an end of the legs having a flaring geometry flaring away from the tooth interface. 
     
     
         22 . The tooth adaptor according to  claim 21 , wherein the trailing surface has a cylindrical section surface. 
     
     
         23 . (canceled) 
     
     
         24 . The tooth adaptor according to  claim 21 , wherein both of the legs have the trailing surface with the flaring geometry. 
     
     
         25 .- 28 . (canceled)

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