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 Title: |
US3724874:
VEHICLE DRAWBAR ASSEMBLY
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| Country: |
US United States of America
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| Inventor: |
Simpson, Glenn; Pocahontas, IA 50574
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| Assignee: |
None
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| Published / Filed: |
1973-04-03
/ 1971-07-30
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| Application Number: |
US1971000167776
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| IPC Code: |
Advanced:
B60D 1/38;
B62D 53/00;
Core:
B60D 1/00;
more...
IPC-7:
B60D 1/18;
B62D 53/00;
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| U.S. Class: |
Current:
280/408;
180/014.1;
280/478.1;
Original:
280/408;
280/478;
180/014.R;
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| Field of Search: |
280/479 R,477,478 A,408,478 R
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| Priority Number: |
| 1971-07-30 |
US1971000167776 |
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| Abstract: |
A drawbar assembly for hitching two trailers together is composed of the following combination: (1) a hollow, rectangular, drawbar receiver for attaching to the rear axle of the first trailer; (2) a portable drawbar attachable to the tongue of the second trailer and movable into the receiver; and (3) a flexible dragline attachable at one end to the drawbar, thence running through the receiver and under the first trailer and attachable at the other end to a tractor for pulling the drawbar into the receiver; the combination having stopping and locking means for holding the drawbar in the receiver.
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| Attorney, Agent or Firm: |
Story, Roy G. ;
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| Primary / Asst. Examiners: |
Friaglia, Leo;
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| Family: |
None
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First Claim:
Show all 4 claims |
I claim:
1. A vehicle drawbar assembly for connecting a plurality of vehicles used in farming operations, including draft and trailer vehicles for travel in the field or on the road, comprising:
- a hollow, substantially rectangular receiver, having
- open ends and flat walls at the bottom, top and sides; rollers at the rear end, adjacent the bottom and side walls, to guide a drawbar into said receiver; and a locking mechanism at the front end to lock the drawbar in the receiver;
- a drawbar, substantially flat and commensurate in length
- with the receiver, having
- means at the front end for cooperating with the locking mechanism and for fastening to a dragline; and a stop at the rear end to limit the distance the drawbar enters the receiver; and
- a dragline for connecting the drawbar to a draft vehicle, having
- a single, continuous cable of sufficient length to reach from the draft vehicle to the last trailer vehicle; and means at the front end for connecting to said draft vehicle and at the rear end for connecting to the drawbar.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 14 U.S. patent(s) that reference this one
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