초록 ▼

A drive shaft (30), adapted to be connected to the power takeoff shaft (14) of a tractor, comprises a longitudinally extensible shaft (33) including a tapered head (34) that is movable into and out of meshing engagement with a correspondingly shaped socket (50) on the outer end portion (49) of a dri

A drive shaft (30), adapted to be connected to the power takeoff shaft (14) of a tractor, comprises a longitudinally extensible shaft (33) including a tapered head (34) that is movable into and out of meshing engagement with a correspondingly shaped socket (50) on the outer end portion (49) of a driven shaft (48). The driven shaft is carried by an implement (27) and includes an inner end portion (49) connected to the outer, socket equipped end portion by a universal joint (51), the inner end portion being adapted for connection to a mechanism to be driven. A coil compression spring (53), loosely encompassing the universal joint, has opposite ends engaging flanges (54,55) on the inner and outer end portions of the driven shaft to yieldingly hold the driven shaft portions in alignment. A bearing (56) for the outer end portion of the driven shaft is mounted on the implement by mechanism including a spring (60), to enable turns of the tractor and implement.

대표청구항 ▼

Power transmission mechanism comprising: (a) a longitudinally extensible and retractable driving shaft having an outer end portion including a longitudinally outwardly tapering coupling head and an inner end portion; (b) a driven shaft having an inner end portion, an outer portion, and a universal j

Power transmission mechanism comprising: (a) a longitudinally extensible and retractable driving shaft having an outer end portion including a longitudinally outwardly tapering coupling head and an inner end portion; (b) a driven shaft having an inner end portion, an outer portion, and a universal joint connecting said outer end portion to said inner end portion; (c) said inner end portions of said shafts being arranged to be connected, one to a prime mover for rotation, and the other to an apparatus to be driven; (d) said outer end portion of said driven shaft comprising a longitudinally inwardly tapering coupling socket for interfitting reception of the tapered head of said first shaft; (e) yielding means urging said inner and outer end portions of the driven shaft toward axial alignment with each other; (f) and means for imparting extending and retracting movements to said driving shaft to move said head into and out of interfitting driving engagement with said socket, wherein said coupling head has a generally circular cross-sectional configuration and a sprocket element having a plurality of teeth is attached to the outer surface of the coupling head adjacent its widest end, and wherein said coupling socket has a generally circular cross-sectional configuration and at least one engagement finger extending from said coupling socket for reception between an adjacent pair of said teeth.