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Tensioner

A tensioning device and pre-tensioning technology, applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of large structure space and increase in size of tensioning device, and achieve the effect of weight saving

Inactive Publication Date: 2016-06-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The known leaf springs for the tensioning device require a large amount of construction space due to their size, whereby the overall size of the tensioning device increases correspondingly

Method used

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Examples

Experimental program
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Embodiment Construction

[0014] FIG. 1 shows a leaf spring known, for example, from publication DE 112006001473T5. The leaf spring is rectangular and prebent in the shape of a bow. In the installed state, the leaf spring is deformed in an opposite bow-shape and thus exerts a pretensioning force on the tensioning rail.

[0015] exist figure 2 A double-armed leaf spring 1 according to the invention is shown in . The two arms 3 of the leaf spring 1 each have a suspension point 4 . The suspension points 4 form end sections of the arms 3 and are substantially at right angles to the arms 3 , wherein the suspension points are each oriented in the direction of the other arm 3 . The suspension points 4 are arranged offset from one another and thus have different distances from the base section 2 of the connecting arm 3 .

[0016] exist image 3 can be seen in side view from figure 2 It can be seen in this view of the leaf spring 1 that the arms 3 have different radii of curvature 8 and different lengths....

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PUM

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Abstract

A tensioning means for tensioning an endless traction means in an engine of a vehicle. The tensioning means having a leaf spring 1 which is arranged between a vehicle mounted locating face and a tensioning rail (7, Figure 4). The leaf spring 1 being installed in a pre-tensioned position and the leaf spring 1 being formed with two arms 3. Suspension points 4 of arms 3 may be arranged offset relative to one another and the arms 3 may be of differing lengths and have different bending radii. Preferably a guide pin (5, Figure 4) is provided on the tensioning means and is laterally encompassed by the leaf spring 1. Optionally the leaf spring 1 has a linear spring characteristic and the arms 3 may be of different width.

Description

technical field [0001] The invention relates to a tensioning device. Background technique [0002] In a force transmission mechanism configured to transmit the rotational motion of the crankshaft to one or more camshafts or other components of a vehicle's internal combustion engine by means of endless traction, such as a chain, the stress on the endless traction mechanism is maintained constant by, The method is: set a tensioning device that applies tension to the endless traction mechanism. The tensioning force transmitted to the endless traction mechanism, for example via a tensioning rail, can be provided, for example, by means of a leaf spring. Such a tensioning device with leaf springs is known from DE 112006001473T5, wherein the leaf springs are here rectangularly embodied and pre-deformed in a bow-shape, so that the leaf springs are deformed opposite to the bow-shape during assembly and thus will pre-deform Tension force is applied to the tension rail. In order to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/08
CPCF16H7/08F16H2007/0804F16H2007/0893
Inventor 彼得·蒂罗勒
Owner SCHAEFFLER TECH AG & CO KG
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