Drive unit
First Claim
1. A drive unit comprising:
- a cable possessing connecting portions at both ends,one of the connecting portions inserted into a groove of an output shaft, andanother one of the connecting portions inserted into a groove of an input shaft, wherein rotational torque from the output shaft is transmitted to the input shaft; and
each of the connecting portions possessing an undulating shape with respect to a longitudinal direction of the cable so that each connecting portion comprises at least two projected portions arranged with a predetermined distance therebetween in the longitudinal direction of the cable, wherein two projected portions of the respective connecting portions engage opposed surfaces of the respective grooves to transmit rotation from the output shaft to the input shaft by way of the cable.
1 Assignment
0 Petitions
Accused Products
Abstract
A drive unit includes a cable possessing connecting portions at both ends, one of the connecting portions inserted into a groove of an output shaft at one side, and the other one of the connecting portions inserted into a groove of an input shaft at the other side, wherein rotational torque from the output shaft is transmitted to the input shaft, and at least two projected portions provided on the respective connecting portions and arranged with a predetermined distance therebetween in a longitudinal direction of the cable, wherein the respective connecting portions possess bent-shaped structures and the two projected portions of the respective connecting portions become in contact with opposed surfaces of the respective grooves.
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Citations
19 Claims
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1. A drive unit comprising:
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a cable possessing connecting portions at both ends, one of the connecting portions inserted into a groove of an output shaft, and another one of the connecting portions inserted into a groove of an input shaft, wherein rotational torque from the output shaft is transmitted to the input shaft; and each of the connecting portions possessing an undulating shape with respect to a longitudinal direction of the cable so that each connecting portion comprises at least two projected portions arranged with a predetermined distance therebetween in the longitudinal direction of the cable, wherein two projected portions of the respective connecting portions engage opposed surfaces of the respective grooves to transmit rotation from the output shaft to the input shaft by way of the cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A seat sliding apparatus comprising:
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a pair of lower rails adapted to be secured to a vehicle floor; a pair of upper rails adapted to be fixed to a cushion, each upper rail slidably engaging one of the lower rails; a motor comprising an output shaft provided with a groove; a speed reduction gear comprising an input shaft provided with a groove; a cable comprising opposite end portions each provided with a connecting portion, one of the connecting portions inserted into the groove of the output shaft; another one of the connecting portions inserted into the groove of the input shaft; each of the connecting portions possessing an undulating shape with respect to a longitudinal direction of the cable so that each connecting portion comprises at least two projected portions arranged with a predetermined distance therebetween in the longitudinal direction of the cable, the two projected portions of the respective connecting portions engaging surfaces of the respective grooves sufficient to transmit rotational torque from the output shaft of the motor to the input shaft of the speed reduction gear by way of the cable; and a screw shaft operatively connected to the speed reduction gear to and one of the upper rails. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification