Earth moving implement

• US 4,669,947 A
• Filed: 05/30/1985
• Issued: 06/02/1987
• Est. Priority Date: 06/19/1984
• Status: Expired due to Fees

• Current Assignee: J C Bamford Excavators Limited (Transmissions & Engineering Services Netherlands BV)
• Original Assignee: J C Bamford Excavators Limited (Transmissions & Engineering Services Netherlands BV)
• Inventors: Frost, Roger A.
• Primary Examiner(s): Paperner, L. J.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/739,203
• Time in Patent Office: 733 Days
• Field of Search: 414/607, 414/724, 414/912, 414/785, 37/117.5, 37/DIG. 3, 37/DIG. 12
• US Class Current: 414/724
• CPC Class Codes: A01D 87/0053 Tractor-mounted loaders buck-rakes, transporting rakes A01D87/08; manure loaders A01C3/04; fork loaders, fork lifts B66F; earth-moving machines E02F
• CPC Class Codes: E02F 3/401 Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
• CPC Class Codes: Y10S 37/903 Scoop or scraper attachments
• CPC Class Codes: Y10S 414/125 Combined or convertible implements

Abstract

An earth moving implement which, in use, is mounted on a boom which is attached to an excavating or other vehicle, comprises a bucket mounted on a boom of a vehicle, at least one loading fork, a mounting link secured to the bucket for movement between a lower extreme position, and an upper position, the link having first and second abutments, the loading fork being pivotally mounted on the mounting link for movement between an "in use" position when the mounting link is in its lower extreme position, and the fork extends generally forwardly of the bucket, and a part of the fork is in engagement with the first abutment to prevent movement of fork towards the bucket, and a stowed position when the mounting link is is an upper position and a further part of the fork is in engagement with the second abutment of the mounting link to prevent further pivotal movement of the fork relative to the mounting link.

Claims

1. An earth moving implement comprising a bucket, means to mount the bucket on a boom of a vehicle, at least one loading fork comprising first and second arms which are fixed relative to one another, a mounting link, means pivotally securing the mounting link to the bucket for movement between a lower extreme position and an upper position, the mounting link having first and second abutment means, means mounting the loading fork on the mounting link for movement between an "in use" position in which the mounting link is in the lower extreme position and the second arm of the fork extends generally forwardly of the bucket while a part of the first arm of the fork is in engagement with the first abutment means, and a stowed position in which the mounting link is in the upper position and a further part of the first arm of the fork is in engagement with the second abutment means of the mounting link with the second arm of the fork lying generally rearwardly outside of the bucket.

2. An implement according to claim 1 wherein the first and second abutment means comprise alternative parts of a common member which extends parallel to a pivotal axis of the fork on the mounting link.

3. An implement according to claim 1 wherein the lower extreme position of the mounting link is governed by engagement of an abutment surface of the mounting link with a corresponding abutment surface of the bucket.

4. An implement according to claim 1 wherein the means pivotally mounting the first arm of the fork on the mounting link is at a position spaced inwardly from the end of the first arm remote from the second arm, the part of the fork which engages the first abutment, in use, comprising a forwardly facing area of the first arm between the pivotal mounting and the end thereof.

5. An implement according to claim 4 wherein the further part of the fork which engages the second abutment means comprises a further area of the first arm on the same face as the first mentioned forwardly facing area, but spaced further inwardly from the end of the first arm, beyond the pivotal mounting.

6. An implement according to claim 1 wherein when the fork is in its lower extreme position, the first abutment means is located forwardly of, and above, the axis of pivot of the fork to the mounting link, and when the fork is in its stowed position, the second abutment means is located rearwardly of, and below, the axis of pivot of the fork to the mounting link.

7. An implement according to claim 1 wherein means are provided to prevent the mounting link pivoting beyond the generally upwardly extending position when the link is stowed, said preventing means including a third abutment means on the mounting link, which engages an upper part of the bucket, rearwardly of the pivotal mounting of the fork to the bucket.

8. A vehicle having a boom attached thereto, the outer end of which has an earth moving implement mounted thereon, the implement comprising a bucket, means to mount the bucket on a boom of the vehicle, at least one loading fork comprising first and second arms which are fixed relative to one another, a mounting link, means pivotally securing the mounting link to the bucket for movement between a lower extreme position and an upper position, the mounting link having first and second abutment means, means mounting the loading fork on the mounting link for movement between an "in use" position in which the mounting link is in the lower extreme position and the second arm of the fork extends generally forwardly of the bucket whilst a part of the first arm of the fork is in engagement with the first abutment means, and a stowed position in which the mounting link is in the upper position and a further part of the first arm of the fork is in engagement with the second abutment means of the mounting link with the second arm of the fork lying generally rearwardly outside of the bucket.

9. A vehicle according to claim 8 wherein power means are provided to permit of pivoting of the boom relative to the vehicle and pivoting of the implement relative to the boom.