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Self-locking step-by-step mechanism for an adjustment device of a vehicle seat

A technology of step-by-step switching and adjusting equipment, which is applied to vehicle seats, control mechanisms with a single control member, and control mechanisms with a single controlled member, which can solve problems such as the driver not being properly disengaged

Active Publication Date: 2013-07-10
KEIPER (CHANGSHU) SEATING MECHANISMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another situation that can happen is that the drive is not properly disengaged from the transmission that releases the wheel after the working stroke

Method used

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  • Self-locking step-by-step mechanism for an adjustment device of a vehicle seat
  • Self-locking step-by-step mechanism for an adjustment device of a vehicle seat
  • Self-locking step-by-step mechanism for an adjustment device of a vehicle seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The self-locking step-by-step switching mechanism is intended for use in adjustment devices for vehicle seats. Such an adjustment device is, for example, an adjustment device of the backrest relative to the seat frame, a height adjustment device of the front edge of the seat relative to the seat frame or an adjustment device of a rear rocker of the base frame of the motor vehicle seat. These adjustment devices are known to those skilled in the art from the prior art.

[0027] Step-by-step opening and closing mechanism includes clamping roller lock. This will not be discussed in detail below. Clamping roller locks are used as known in the two patent applications mentioned in the introduction. The vise roller lock includes a shaft 20 which is at the same time the shaft of the step-by-step opening and closing mechanism. Furthermore, the vise roller lock includes a release wheel 22 . It is configured as a normal external toothing. Release wheel 22 is rotatable about ax...

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PUM

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Abstract

The self-locking step-by-step mechanism for an adjustment device of a vehicle seat has a clamping roller lock and a step-by-step device. The clamping roller lock has an axis (20) and a release wheel (22) which is rotatable about said axis (20) and has a toothing. The step-by-step device has a) an actuating lever (24) which is mounted pivotably about the axis (20), b) a driver (26) which is mounted on the actuating lever (24) so as to be pivotable about a driver axis (32) and which has two driver regions (28) which interact with the toothing of the release wheel (22) and of which only one is in engagement in each case with the toothing in one direction of rotation of the release wheel (22), of which both are disengaged from the toothing in a central position of the actuating lever (24), and of which one comes into engagement with the toothing and rotates the release wheel (22); when the actuating lever (24) is pivoted out of the central position thereof whereas the other remains disengaged from the toothing, c) a drag lever (34) which has supporting surfaces (62) which enter into contact with the driver (26), and d) a spring (38). The spring (38) has at least one projection (40). The drag lever (34) has at least one indentation (42) which is normally in engagement with the projection (40). The spring (38) is fixed against rotating.

Description

technical field [0001] The invention relates to a self-locking step-by-step switching mechanism for an adjustment device of a vehicle seat, which comprises a clamping roller lock and a step-by-step switching device, wherein the clamping roller lock comprises a shaft and a shaft rotatable around the shaft and comprising teeth The wheel is released, and the step-by-step switching device comprises a) an actuation lever pivotally mounted about the axis, b) a driver mounted on the actuation lever to be pivotable about the drive shaft and having a tooth cooperating with the release wheel of the two drive areas, only one of which engages the toothing in one direction of rotation of the release wheel, and both disengage from the toothing at the center of the actuating lever , while when the actuating lever pivots away from its center position, one of them engages the toothing and rotates to release the wheel, while the other remains disengaged from said toothing, c) the drag lever, wh...

Claims

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Application Information

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IPC IPC(8): B60N2/22B60N2/16B60N2/18B60N2/44G05G7/06B60N2/90
CPCB60N2/943G05G7/06B60N2/16B60N2/18B60N2/22B60N2/224
Inventor U·卡特豪斯
Owner KEIPER (CHANGSHU) SEATING MECHANISMS CO LTD
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