Power seat adjusting apparatus
First Claim
1. A power seat adjusting apparatus comprising a tube type motor body having a yoke formed of a tubular member, output from a motor being reduced and boosted to transmit its power to said tube type motor body so that said motor body itself is rotated, a base with a seat placed thereon being driven upwardly and downwardly by an arm secured to said tube type motor body, wherein rotational force of the output is transformed into propulsion by a wing element provided on a nut which is threadingly engaged with a feed thread mechanism and then reduced and boosted between a spiral groove and a linear groove formed within said body, so that the rotational force is transmitted to said tube type motor body.
1 Assignment
0 Petitions
Accused Products
Abstract
Output reduced by a reduction mechanism A contained within a tube type motor body 5 is transmitted to a threaded shaft 13, and a nut 15 having a wing element 15a for transforming rotation of the threaded shaft 13 to propulsion is threadingly engaged with the threaded shaft 13. Then, reduction and boost is made between a linear groove 16a of a guide member 16 secured to an inner wall of the body 5 and the rotation is transmitted to the body 5 by this rotational force, thereby an arm 17 provided on the body 5 is swung so that a base 3 is adjusted upwardly and downwardly about bearing members 2, 2a mounted on slide rails 1, 1. Owing to this arrangement, since a smaller installation space can be achieved, the apparatus can be made small in size and commonly used for various types of automotive vehicles. Moreover, the apparatus can be unitized. In addition, a high torque transmission is made possible by reduction and boost.
-
Citations
3 Claims
- 1. A power seat adjusting apparatus comprising a tube type motor body having a yoke formed of a tubular member, output from a motor being reduced and boosted to transmit its power to said tube type motor body so that said motor body itself is rotated, a base with a seat placed thereon being driven upwardly and downwardly by an arm secured to said tube type motor body, wherein rotational force of the output is transformed into propulsion by a wing element provided on a nut which is threadingly engaged with a feed thread mechanism and then reduced and boosted between a spiral groove and a linear groove formed within said body, so that the rotational force is transmitted to said tube type motor body.
Specification