Machine element or mechanism – Gearing – Nonplanetary gearing differential type
Patent
1996-12-30
1999-02-02
Marmor, Charles A.
Machine element or mechanism
Gearing
Nonplanetary gearing differential type
475196, F16H 4820
Patent
active
058650717
ABSTRACT:
A differential gear is capable of differentially setting magnitudes of differential limiting forces depending on directions of rotational force transmission. A rotational force of the input-side rotary element is transmitted by way of rolling elements and grooves to the rotary elements. The rolling elements roll along grooves of the rotary elements while reciprocating within elongated holes of the retainer element, thereby permitting the difference in speeds of rotation between the rotary elements. The differential motions of the rotary elements are limited by axial reaction forces generated between the rotary elements and the grooves. At that time, if the directions of the rotational force transmission between the input-side rotary element and the rotary elements differ from each other, then the magnitudes of the axial reaction forces generated between the rotary elements and the grooves will also be different from each other. Hence, differential limiting forces are generated which differ in magnitude from one another depending on the directions of transmission of rotational forces. According to the present invention, therefore, a small and low-cost configuration is achieved and there can be generated differential limiting forces having any magnitudes which differ between upon the acceleration and deceleration of automobiles. A secure coping will thus be ensured with running performances of automobiles, objects of use and combinations with attached mechanisms, thereby remarkably enhancing utility value as the differential gear having a differential limiting function.
REFERENCES:
patent: 2467870 (1949-04-01), Stephenson
patent: 2642213 (1953-01-01), Schott
patent: 2967438 (1961-01-01), Altmann
patent: 5286239 (1994-02-01), Ito et al.
patent: 5312306 (1994-05-01), Folino
patent: 5540119 (1996-07-01), Hudson
patent: 5577423 (1996-11-01), Mimura
Estremsky Sherry Lynn
Marmor Charles A.
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