Bucket adapter with load absorbing means

• US 4,120,105 A
• Filed: 08/15/1977
• Issued: 10/17/1978
• Est. Priority Date: 08/15/1977
• Status: Expired due to Term

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Tractor Co (Caterpillar Incorporated)
• Inventors: Stepe, Visvaldis A.
• Primary Examiner(s): Eickholt, E. H.
• Application Number:
  US05/824,599
• Time in Patent Office: 428 Days
• Field of Search: 37/141 R, 37/141 T, 37/142 R, 37/142 A, 172/681, 172/719, 172/747, 172/753, 172/762, 172/702, 52/758 F
• US Class Current: 37/455
• CPC Class Codes: E02F 9/2825 using adapters

Abstract

A loader bucket having a support plate connected to the bucket base, a reversible cutting edge connected to and extending forwardly of the plate, and a tooth-adapter assembly including an adapter having a rearward portion bifurcated into upper and lower legs with a cavity therebetween to receive the support plate and cutting edge, a load-absorbing shoulder extending integrally from the upper leg into the cavity to abut a forward end of the support plate, and a tooth extending from a forward portion of the adapter.

Claims

1. An earthworking implement, comprising:

(a) a support plate having one forward end;

(b) a cutting edge extending forwardly of said one forward end of said support plate and having one forward cutting end;

(c) a tooth adapter having rearwardly extending upper and lower legs forming a cavity therebetween, said support plate and said cutting edge extending into said cavity, said adapter having an integral load-absorbing shoulder extending into said cavity and abutting said one forward end of said support plate; and

(d) means for securing together said support plate, said cutting edge, and said legs.

2. An earthworking implement according to claim 1 wherein said legs and said cutting edge are shaped to provide clearance in said cavity between said legs and said one forward cutting end of said cutting edge.

3. An earthworking implement according to claim 1 wherein said one forward end of said support plate is relatively blunt and said one end of said cutting edge is relatively sharp.

4. An earthworking implement according to claim 1 wherein said shoulder extends downwardly from said upper leg.

5. An earthworking implement according to claim 1 wherein said support plate and said cutting edge are in surface contact with said cutting edge being beneath said support plate.

6. An earthworking implement according to claim 3 wherein said cutting edge is reversible having another relatively sharp cutting end.

7. An earthworking implement according to claim 1 further comprising a tooth connected to said adapter to extend forwardly therefrom.

8. An earthworking implement according to claim 1 wherein said support plate and said cutting edge extend laterally, and further comprising a plurality of tooth adapters spaced along said plate and said cutting edge.

9. An earthworking implement according to claim 1 wherein said securing means comprises a bolt.

10. An assembly for attachment to an earthworking implement having a support plate and a cutting edge connected to and extending forwardly of said plate, comprising:

(a) an adapter having a rearward portion bifurcated into a first upper leg and a second lower leg with a cavity therebetween for receiving said support plate and said cutting edge, and an integral load-absorbing shoulder extending from one of said legs into said cavity to abut on a forward end of said support plate; and

(b) a tooth extending from a forward portion of said adapter.

11. An assembly according to claim 10 wherein said first leg and said second leg are shaped such that said cavity provides a clearance for a forward end of said cutting edge.

12. An assembly according to claim 11 wherein said shoulder extends downwardly from said first upper leg.

13. An adapter to couple a tooth to an earthworking implement having a support plate with a forward end and a cutting edge connected to and extending forwardly of the plate, comprising:

(a) a forward segment to receive the tooth;

(b) a rearward segment bifurcated into a first upper leg and a second lower leg with a cavity therebetween to receive the support plate and the cutting edge; and

(c) an integral load-absorbing shoulder extending from one of said legs into said cavity to abut the forward end of the support plate.

14. An adapter according to claim 13 wherein said shoulder extends downwardly from said upper leg.

15. An adapter according to claim 13 wherein said shoulder is spaced from a forward end of said cavity, and said cavity is shaped by said first leg and said second leg to receive with clearance the cutting edge between said shoulder and said forward end of said cavity.