Powered six-way seat adjustor and mechanisms therefor

• US 4,880,199 A
• Filed: 07/12/1988
• Issued: 11/14/1989
• Est. Priority Date: 07/13/1987
• Status: Expired due to Term

• Current Assignee: Atoma International, Inc.
• Original Assignee: Magna International Incorporated
• Inventors: Harney, William J. J.
• Primary Examiner(s): CHIN SHUE, ALVIN C
• Application Number:
  US07/217,951
• Time in Patent Office: 490 Days
• Field of Search: 248/396, 248/421, 248/422, 411/522-524, 411/544, 403/228, 297/325
• US Class Current: 248/396
• CPC Class Codes: B60N 2/0224 Non-manual adjustments, e.g. with electrical operation
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/0296 Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms
• CPC Class Codes: B60N 2/067 by linear actuators, e.g. linear screw mechanisms
• CPC Class Codes: B60N 2/1803 with independent front and/or rear adjustment
• CPC Class Codes: B60N 2/1853 Linear actuator, e.g. screw mechanism
• CPC Class Codes: F16H 25/24 Elements essential to such mechanisms, e.g. screws, nuts F16H25/22 takes precedence
• CPC Class Codes: Y10T 74/18616 Single input, plural outputs
• CPC Class Codes: Y10T 74/19814 Integral deformable tangs engaging screw

Abstract

An improved pivot assembly comprising a pivot mechanism upon which a seat adjuster pivots, a bracket mechanism having an elongated slot in which a fastening mechanism for the pivot mechanism is contained, a lining portion affixed to the bracket mechanism the lining portion having flanges extending through the elongated slot laterally away from the lining portion, the flanges having a predetermined curvature, a fastening mechanism passing through the lining portion, bracket mechanism and pivot mechanism, whereby when the fastening mechanism is affixed to the pivot mechanism through the bracket mechanism the flanges of the lining portion are biased against the fastening mechanism, thereby the tolerance of the improved pivot assembly are optimized to allow a minimum of play or chuck amongst the components therefor.

Claims

1. An improved pivot assembly comprising a pivot means upon which a seat adjuster pivots, a bracket means having an elongated slot in which a fastening means for the pivot means is contained, a lining portion affixed to the bracket means the lining portion having flanges extending through the elongated slot laterally away from the lining portion, the flanges having a predetermined curvature, a fastening means passing through the lining portion, bracket means and pivot means, whereby when the fastening means is affixed to the pivot means through the bracket means the flanges of the lining portion are biased against the fastening means, thereby the tolerance of the improved pivot assembly are optimized to allow a minimum of play or chuck amongst the components thereof.

2. The pivot assembly of claim 1 wherein the assembly is used in a vehicle seat.

3. The pivot assembly of claim 1 or 2 wherein the lining portion is affixed to the bracket means by staking, riveting or welding.

4. The pivot assembly of claim 1 or 2 wherein the fastening means is a rivet.

5. The pivot assembly of claim 3 wherein the fastening means is a rivet.