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Actuator

The technology of an actuating device and a driving device, which is applied in hoisting devices, movable seats, transportation and packaging, etc., can solve the problems of preventing further actuation of the actuating device, expensive, high manufacturing cost of electronic control devices, etc., and achieves the elimination of stuck stuck or jammed effect

Inactive Publication Date: 2006-01-18
SCHUKRA GERAETEBAU GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has a disadvantage: a hard stopper may cause the actuation device to jam, hindering or preventing further actuation of the actuation device
However, the electronic control unit is expensive to manufacture and thus relatively expensive

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0021] figure 1 Shown in is a top view of an actuator device according to an embodiment of the present invention. Figure 2 is the corresponding side view.

[0022] figure 1 The actuating device shown in FIG. 2 includes a driving motor 6 , such as an electric motor, whose driving force is transmitted to a gear 1 via a gear 20 . The gear 1 is used to transmit the driving force of the motor 6 to a traction element 5, such as a control cable or an operation cable. Such an operating cable may also in particular be a Bowden cable.

[0023] A drum 2 is mounted coaxially with the gear 1 for winding up traction elements 5 . The drum 2 can be integrally processed with the gear 1 or rigidly connected with the gear 1 in other different ways. Gear 1 and drum 2 comprise a groove 3 in the direction of their axis of rotation and through which a rigid shaft extends.

[0024] Such as figure 1 As shown, the drum 2 comprises a groove 4 in which a thickened end of the traction element 5 can...

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PUM

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Abstract

An actuation device is provided for actuating a traction element (5), the actuation element comprising in particular a pivotally mounted force transmission element (1) for transferring an actuation force to the traction element (5). The force transmission element comprises first stop means (7), the actuation device further comprises second stop means (9), whereby a possible angle of rotation of the force transmission element (1) is limited. The first stop means (7) and / or the second stop means (9) comprise(s) a resilient element. A stop is thereby dampened and when the first stop means (7) butts against the second stop means (9) energy absorbed by the resilient element (7) can be used to assist a movement of the force transmission element (1) in an opposite direction.

Description

technical field [0001] The invention relates to an actuating device for adjusting, ie tensioning or loosening, a traction element, such as a cable or a control cable. Background technique [0002] Such actuating devices are also referred to as actuators and are used, for example, in motor vehicle seats for adjusting the bendable seat back, commonly known as lumbar support. If the corresponding traction elements are tightened, the backrest becomes more curved; when the traction elements are released, the curvature of the backrest decreases. The traction element is for example wound on a drum and can be unrolled from the drum. [0003] In such an actuating device, an adjustment distance must be defined, ie the maximum distance over which the traction element can be shortened and tightened. In the above example of the bendable backrest, this prevents additional loads from the corresponding bending mechanism which could lead to damage. [0004] For this purpose, mechanical st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D5/00B60N2/64
CPCB60N2/22B60N2/66B60N2/6673Y10T74/2048Y10T74/18576B60N2/6671
Inventor 法伊特·施特塞尔马蒂亚斯·维特科夫斯基克劳斯·施韦尔默
Owner SCHUKRA GERAETEBAU GMBH
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