DE102007018968A1 - Plate spring arrangement for piston of switching element, has plate spring whose fingers lie at round wire snap ring, where outer diameter of plate spring that is formed as closed ring lies at piston of switching element - Google Patents

Abstract

The arrangement has a plate spring (2) whose fingers lie at a round wire snap ring (4), where an outer diameter (7) of the plate spring that is formed as a closed ring lies at a piston (1) of a switching element (3). The fingers of the plate spring protrude in a housing through a crest (5), and are supported by the round wire snap ring from inside. Piston fingers (6) for actuating the switching element is gripped between the fingers the plate spring.

Description

The The present invention relates to the arrangement of a plate spring in a piston of a switching element according to the Preamble of claim 1.

From the DE-OS 2124008 is a holder for one or more acting on an axially displaceable component acting springs, in particular for the acting on a pressurizable means of pressure piston ring piston of a friction clutch or brake return springs known. Here, a one- or multi-part, in cross-section double-angle trained support member is provided to support the spring, which is inserted with a leg in a recess of a groove of a stationary component and on the other leg, the spring rests directly or via intermediate links.

Out The prior art is also known, the diaphragm spring with their internal fingers directly on the piston of a switching element to arrange. This creates the disadvantage that the arrangement of Finger the diaphragm spring to a high wear of the piston can lead.

Of the The present invention is therefore based on the object, an arrangement to specify a diaphragm spring in a piston of a switching element by the wear of the piston avoided in a simple manner becomes. Because of the design very little space available is, should the inventive arrangement of Belleville spring a space-saving arrangement of the piston, the piston finger, the diaphragm spring and the snap ring ensure.

These The object is solved by the features of claim 1. Further embodiments and advantages of the invention are apparent from the dependent claims.

Therefore it is proposed the diaphragm spring in comparison with arrangements to arrange inverted according to the prior art; according to the Invention are the fingers of the diaphragm spring on a round wire snap ring on, wherein the outer diameter of the diaphragm spring, as closed ring is executed on the piston of the switching element is applied.

By the concept of the invention is the pressure reduced, resulting in less wear of the piston of the switching element results.

According to the Invention protrude the fingers of the diaphragm spring by crowns in the housing and are stored from the inside with the Runddrahtsprengring. By The round snap ring creates an optimal roll geometry for the actuation of the switching element and thus for moving the diaphragm spring. Furthermore, in the context of an advantageous Training provided that the piston fingers for actuation of the switching element between the fingers of the diaphragm spring, which in an advantageous manner to an extremely compact Construction leads.

The Invention will be described below with reference to the attached FIGURE, which is a schematic sectional view illustrating the Inventive storage is closer, by way of example explained. The cutting planes of the left and right Part of the figure are offset by an angle to each other.

In the attached figure is the piston of the switching element 3 With 1 and the diaphragm spring with 2 designated. According to the invention, the plate spring 2 of the switching element arranged such that the fingers of the plate spring 2 on a round wire snap ring 4 issue; the outside diameter 7 the plate spring 2 , which is designed as a closed ring, is located on the piston 1 at. As can be seen from the figure, the fingers of the diaphragm spring protrude 2 through crowns 5 in the case and from the inside with the round wire snap ring 4 stored. To actuate the switching element engage the piston fingers 6 between the fingers of the diaphragm spring 2 therethrough.

By The invention is an arrangement of the plate spring of a switching element provided, which takes up little space and in a little wear for the piston results.

1

piston

2

Belleville spring

3

switching element

4

Round wire snap ring

5

Crown

6

piston fingers

7

outer diameter the plate spring

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 2124008 A [0002]

Claims (3)

Arrangement of a plate spring in a piston of a switching element, characterized in that the fingers of the plate spring ( 2 ) on a round wire snap ring ( 4 ), wherein the outer diameter ( 7 ) the diaphragm spring ( 2 ), which is designed as a closed ring, on the piston ( 1 ) of the switching element ( 3 ) is present. Arrangement of a plate spring in a piston of a switching element, according to claim 1, characterized in that the fingers of the plate spring ( 2 ) by crowns ( 5 ) protrude into the housing and from the inside with the Runddrahtsprengring ( 4 ) are stored. Arrangement of a plate spring in a piston of a switching element, according to claim 1 or 2, characterized in that the piston fingers ( 6 ) for actuating the switching element ( 3 ) between the fingers of the diaphragm spring ( 2 ).