| 摘要 |
936,708. Securing together rotating parts; ratchet clutches. G. LANE, and WEATHERSEAL Inc. Jan. 24, 1962 [Feb. 28, 1961], No. 2587/62. Class 80 (2). [Also in Group XXXII] Coupling of a hitch between a tractor 1 and an implement 2 automatically produces axial engagement of driving and driven members of a power-take-off system. The tractor hitch member comprises an A- frame 9, 10, supported on links 4, 5, capable of raising or tilting the frame, a hook member 12 and hooks 22 engageable by a lever 24 with pins 23 on the implement hitch member 17. A sleeve 34 rigid with a transverse plate 11 secured to the frame 9, 10 forms a bearing for a sleeve 36, driven through a universal joint 33 from the tractor power-take-off 31a; the sleeve having rigid therewith a thrust bearing plate 37 and a ratchet clutch member 38 provided with axially extending tongues 39 bent out from the member. The sleeve 36 is extended rearwardly by fingers 41a to receive a corresponding ratchet clutch member 57 connected to the implement driven shaft 54 through a splined joint 52. The member 57 is carried in a sleeve 62 rigid with a transverse plate 63 located on the implement hitch A- frame member 16, 17 by lugs 67 and resiliently held thereon, to permit alignment movement, by springs 68. The member 16, 17 is secured to the implement by a bar 19, and may be provided with a ground engaging stand 20 operated by a handle 74. Engagement of the hitch by hooks 12, 22 causes facial engagement of the ratchet clutch members 56, 38 under the loading of springs 68 to transmit drive from tractor to implement; overrun of the implement shaft 54 causing release of the ratchet clutch. |
