Device for connecting an agricultural implement, machine or the like to a tractor
阅读：332发布：2022-01-13
专利汇可以提供Device for connecting an agricultural implement, machine or the like to a tractor专利检索，专利查询，专利分析的服务。并且On the rear end of a tractor a catch bar has its lower end pivotally mounted thereto and an alignment roller is mounted on the upper end of the catch bar. A coupling plate is mounted on the implement to be connected and an aligning hook is secured on the coupling plate to have an opening engagable with the catch bar alignment roller. The coupling plate is aligned with respect to the tractor by the engagement of the alignment roller with the hook and the catch bar is pivoted upwardly to a position whereby the coupling plate is locked to the tractor.，下面是Device for connecting an agricultural implement, machine or the like to a tractor专利的具体信息内容。
1. In a device for connecting an agricultural implement and the like to a tractor vehicle, the combination of a catch bar having its lower end pivotally mounted on the rear of a tractor vehicle and an alignment roller on its upper end, a coupling plate mounted on the implement to be connected, an aligning hook on said coupling plate having an opening engagable with said catch bar alignment roller, and mutually engagable means on said tractor vehicle and coupling plate for locking said coupling plate with respect to said tractor vehicle after connection therebetween.
2. In a device as claimed in claim 1 and side plates on said catch bar to guide laterally the coupling plate.
3. In a device as claimed in claim 1 wherein there are two aligning hooks on said coupling plate, said alignment roller tapering at both ends thereof to engage with said two hooks.
4. In a device as claimed in claim 1 wherein said alignment roller tapers inwardly from both ends toward the center thereof and is engagable with said alignment hook.
5. In a device as claimed in claim 1 wherein said locking means on the tractor vehicle comprises a pair of hooks, said coupling plate having a pair of apertures through which said locking hooks extend when the implement and tRactor vehicle are connected together.
6. In a device as claimed in claim 5 and a pair of locking elements slidable on said locking hooks and positionable in the remaining clearance of said apertures after said locking hooks have been extended therein, and an actuating member connected to said locking elements operable to engage and release said locking elements from said apertures.
7. In a device as claimed in claim 5 and a retaining bar on said catch bar, said locking hooks each having a hook portion which extends over said retaining bar.
8. In a device as claimed in claim 1 and a shaft on the lower end of said catch bar and pivotally mounted on said tractor vehicle, a lever secured to said shaft, and means interconnecting said lever to a lifting means on the tractor so that said catch bar is pivotable by the tractor lifting means.
9. In a device as claimed in claim 1 and horizontal stop bolt means fixedly mounted on the upper portion of siad coupling plate parallel thereto and extending laterally outwardly thereof, second stop bolt means movably mounted on the lower portion of said coupling plate, first and second holding means on said tractor vehicle and receiving said first and second stop bolt means respectively in the coupling position, and locking means for retaining said stop bolt means within the respective holding means.
10. In a device as claimed in claim 9 wherein said catch bar comprises a pair of spaced parallel vertical bars on the rear of the tractor vehicle, said holding means and said locking means being mounted on said bars.
11. In a device as claimed in claim 9 and a linkage system connected to said locking means, and operator means on said linkage system to actuate said locking means.
12. In a device as claimed in claim 11 and a shaft on the lower end of said catch bar and pivotally mounted on said tractor vehicle, a cam plate mounted on said catch bar shaft and having means thereon defining a plurality of engaging positions corresponding to different pivot angles of said catch bar, said cam plate being engagable by said locking means linkage system so that said locking means is in the unlocked position on said holding means while said catch bar is being pivoted upwardly until said coupling plate is in the locked position with respect to said tractor.
13. In a device as claimed in claim 11 wherein said operator means comprises a manually operable handle.
14. In a device as claimed in claim 1 wherein said aligning hook has a triangular shape, said catch bar roller has a cylindrical central portion at both ends of which are conical portions extending into outer cylindrical portions having a larger diameter than said central portion, the edges of said triangular hook being centered between said conical portions when said coupling plate is aligned with said catch bar.
15. In a device as claimed in claim 6 and a retaining bar on said catch bar, said locking hooks each having a hook portion which extends over said retaining bar, a lug guide on the side of each locking hook away from its hook portion and having a vertical slot therein, said locking element slidable on said side of the locking hook and having an inclined slot therein ascending toward the hook portion, said actuating member having a pin thereon extending through said lug guide and locking element slots.
16. In a device as claimed in claim 1 wherein the lower end of said catch bar has a portion curved away from a coupling plate connectable thereto, the catch bar pivot mount being at the lower end of said curved portion, a pair of spaced vertical supports on the rear of the tractor vehicle and said catch bar pivot mount positioned thereon, there being guide slots opening on the bottom edges of said vertical supports outwardly of said pivot mount, the outer edges of the guide slots being parallel to a coupling plate when connected to the tractor, and a cross bar operatively engagable with said slots and adapted for connection to a lifting device on the tractoR.
17. In a device as claimed in claim 1 wherein said coupling plate has side abutment notches, said catch bar having shoulders engagable with said abutment notches.
18. In a device as claimed in claim 1 wherein said coupling plate has a traction jaw thereon.
19. In a device as claimed in claim 11 and a plate on the lower edge of said coupling plate and extending perpendicularly thereto, traction jaw means on said plate, and means in the vicinity of said plate and operable by said linkage system for fixing axially said coupling plate to the tractor vehicle.
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