Disc recliner with internal leaf springs

一种斜倚器、板弹簧的技术，应用在盘状斜倚器领域，能够解决致动力不合需要等问题

Inactive Publication Date: 2014-06-11
MAGNA SEATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the shaft is rotated, the spring bias and torque increase such that the actuation force to unlock the disc recliner may become undesirable

Method used

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  • Disc recliner with internal leaf springs
  • Disc recliner with internal leaf springs
  • Disc recliner with internal leaf springs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Referring to the drawings, wherein like reference numerals indicate like or corresponding parts throughout the several views, a seat assembly for use in an automotive vehicle is shown generally at 10 . refer to figure 1 The seat assembly 10 includes a generally horizontal seat cushion 12 and a generally vertical seat back 14 operatively and pivotally coupled to the seat cushion 12 by a recline assembly 16 . The recline assembly 16 includes a pair of spaced and synchronized disc recliners 18 (one disc recliner shown).

[0020] refer to Figure 2 to Figure 6 , the disc recliner 18 is operable between a locked state, in which the disc recliner 18 prevents pivotal movement of the seat back 14 relative to the seat cushion 12, and an unlocked state, , the disc recliner 18 permits pivotal movement of the seat back 14 relative to the seat cushion 12 about a laterally extending axis 20 between an upright sitting position A and a plurality of reclined sitting positions. One of...

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PUM

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Abstract

A disc recliner for a seat assembly includes a guide plate and a tooth plate rotatably coupled to the guide plate. A rotatable shaft moves a pawl between a first position engaging the tooth plate to prevent pivotal movement of the seat back and a second position disengaged with the tooth plate to allow pivotal movement of the seat back. A leaf spring extends between a first end secured to the guide plate and a second end having a convex curve portion engaging a lobe on the shaft. The spring biases the shaft in a first direction to maintain the pawl in the first position. Rotation of the shaft in a second direction moves the pawl from the first position to the second position as the lobe pushes against and rides along the convex curve portion of the spring, thereby controlling an actuation effort of the disc recliner.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 61 / 498,751, filed June 20, 2011, entitled "Disc recliner with Internal Leaf Springs," and filed on August 12, 2011 Priority to U.S. Provisional Application No. 61 / 522,852, entitled "Disc Recliner with Long Arm Internal Leaf Springs," filed on . technical field [0003] The present invention relates to a disc recliner for a vehicle seat assembly that allows pivotal adjustment of the seat back relative to the seat cushion. More specifically, the present invention relates to a disc recliner having an internal leaf spring that provides a hold when the disc recliner is actuated to allow pivotal movement of the seat back relative to the seat cushion. Relatively constant or reduced actuation torque. Background technique [0004] Automotive vehicles typically include one or more seat assemblies having a seat cushion and a seat back for supporting an occupant on the veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C1/026B60N2/20B60N2/225
CPCB60N2/2356B60N2/236A47C1/026B60N2/20B60N2/225
Inventor 魏小军奥马尔·D·塔米
Owner MAGNA SEATING
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