Ball nut and screw assembly with travel limit stop

Details Ball nut and screw assembly with travel limit stop Ball nut and screw assembly with travel limit stop

1979-09-13

1981-10-20

Husar, C. J.

Machine element or mechanism

Gearing

Directly cooperating gears

74 8915, 411259, F16H 108, F16H 2702, F16H 2920

Patent

active

042953847

ABSTRACT:
This ball nut and screw assembly has a ramplike stop secured to screw shaft. On predetermined linear movement of the ball nut relative to the screw shaft, the balls contained in the ball nut are forced to climb the ramp and are compressively loaded to force radial expansion of the nut and to positively limit ball nut travel. The wedging effect provided by the stop requires additional power to continue movement which cannot be fulfilled by the input.

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patent: 3732744 (1973-05-01), Rowland
patent: 4074585 (1978-02-01), Richaud et al.
patent: 4179944 (1979-12-01), Conner

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