WO2015003704A1

WO2015003704A1 - Coupling

Info

Publication number: WO2015003704A1
Application number: PCT/DE2014/200300
Authority: WO
Inventors: Timo Blum
Original assignee: Schaeffler Technologies Gmbh & Co. Kg
Priority date: 2013-07-09
Filing date: 2014-07-03
Publication date: 2015-01-15
Also published as: CN105358853B; DE112014003190A5; CN105358853A; DE102014212876A1

Abstract

The invention concerns a coupling with a first coupling element (1) and a second coupling element (4), the first coupling element having an aperture (3) and the second coupling element having a tongue (5), the first coupling element and the second coupling element being connected to each other such that the tongue engages in the aperture and the region of the tongue protruding through the aperture is plastically deformed.

Description

clutch

The invention relates to a clutch, in particular for motor vehicles.

Clutches, in particular for motor vehicles, have a plurality of components that are partially connected to one another. The use of rivet elements has proven to be particularly effective because, in contrast to screwed connections, they are easier to assemble and nevertheless produce permanent connections. Such rivet elements have become known, for example, from DE 10 201 1 01 1 916 A1.

However, the rivet elements used are also to be regarded as additional components that must be procured, provided and assembled, which means an associated effort and associated costs.

It is the object of the invention to provide a coupling which is simplified over the prior art in terms of assembly and reduced in cost.

This object is achieved with the features of claim 1.

An embodiment of the invention relates to a coupling having a first coupling element and a second coupling element, wherein the first coupling element has an opening and the second coupling element has a tongue, wherein the first coupling element and the second coupling element are connected to each other such that the tongue in the opening engages and the protruding through the opening portion of the tongue is plastically deformed. This ensures that the first and the second coupling element without additional elements are positively connected to one another.

It is particularly advantageous if the first coupling element has a slot as an opening. As a result, a tongue tip of a tongue made of a sheet material can be inserted well into the slot and secured by plastic deformation. If the slot is only slightly larger than the tongue tip already a slight deformation of the tongue tip may be sufficient for securing the connection between the two coupling elements. It is also expedient if the second coupling element is one opposite to one

Stop protruding tongue tip has, which is inserted into the opening or the slot to the stop, the tongue tip protrudes from the opening with a supernatant. By the stop on the second coupling element, the insertion depth of the tongue tip is defined and the tongue tip can not engage too deeply in the opening.

In one embodiment of the invention, it is advantageous if the tongue tip is split longitudinally into two tongue wings and the two tongue wings are deformed in opposite directions or in the same direction to secure the tongue in the aperture. Thus, the two tongue wings are bent like two adjacent tabs in the opposite direction, so that they are aligned approximately at right angles to the orientation of the non-bent tongue and rest against the first coupling element. As a result, a secure positive connection is achieved.

It is particularly advantageous if the tongue tip contains one or two lateral slots in the transverse direction, so that the tongue tip is deformed on a side flank or on its side flanks for securing the tongue in the opening. Thus, the tongue tip in a front part, ie in the region of the tip of the tongue, deformable, while the rear portion of the tongue tip can remain undeformed. The deformed region is particularly preferably so deformable that the side edges of the tongue tip are bent and so a positive connection takes place. The slots are placed so that they are at the height that corresponds approximately to the thickness of the material of the first coupling element, so that the projecting over the slots portion of the tongue tip upon insertion of the tongue in the opening with the tongue tip beyond the slots of the Opening protrudes. As a result, the tongue tip can be deformed beyond the slots and the two coupling elements can be positively connected in a simple manner.

It is particularly advantageous if the tongue tip is c-, s- or I-shaped deformed. This is advantageously achieved in that one or both of the side edges of the tongue is or will be deformed.

It is also advantageous if the tongue is rolled at its end region projecting through the opening in such a way that there is a broadening, which in relation to the extent of the Opening is enlarged. This can be achieved by means of a simple Rollierprozesses the positive connection between the coupling elements.

The present invention will be explained in more detail below with reference to preferred exemplary embodiments in conjunction with the associated figures:

Showing:

FIG. 1 shows a first coupling element with an opening,

FIG. 2 shows a second coupling element with a tongue,

3 is a view of the tongue in the opening with plastic deformation,

FIG. 4 shows a side view according to FIG. 3,

FIG. 5 shows a second coupling element with a tongue,

FIG. 6 shows a view of the tongue in the opening with plastic deformation,

FIG. 7 shows a side view according to FIG. 6,

FIG. 8 shows a second coupling element with a tongue,

Figure 9 is a view of a tongue in the opening, and

FIG. 10 shows a side view according to FIG. 9.

1 shows a first coupling element 1 with a laterally projecting projection 2, in which an opening 3 is provided. The opening 3 is formed as a slot which is formed in the transverse direction of the projection 2 along the first coupling element 1. FIG. 2 shows a second coupling element 4, which is formed with a tongue 5. The tongue 5 has a tongue tip 6, which is reduced relative to the foot 9 of the tongue 5 in width. This reduction of the width via a paragraph 7, which also serves as a stop and divided the tongue tip 6 of the foot 9 of the tongue 5.

The tongue tip 6 is divided by means of a slot 8 in two tongue wings 10, 1 1. In the embodiment of FIG. 2, the slot 8 extends along the extent of the tongue 5 or parallel to the longitudinal axis of the tongue 5.

In FIGS. 3 and 4, the tongue tip 6 of the tongue 5 of the second coupling element 4 is inserted into the opening 3 of the first coupling element 1. In this case, opposite the opening projecting tongue wings of the tongue tip 6 are bent in the opposite direction, so that the tongue tip 6 with its tongue wings 10, 1 1 flat against the projection 2 of the first coupling element 1 and a positive connection between the first coupling element 1 and the second Coupling element 4 causes.

FIG. 5 shows a second exemplary embodiment of the invention

Coupling element 20, which is formed with a tongue 21. The tongue 21 has a tongue tip 22, which is reduced with respect to the foot 23 of the tongue 21 in width. This reduction of the width takes place, as in FIG. 2, via a shoulder 24, which also serves as a stop and divides the tongue tip 22 from the foot 23 of the tongue 21.

The tongue tip 22 is divided by means of a slot or, as shown in Figure 5, by means of two slots 25, 26 in a front tongue portion 27 and in a rear tongue portion 28. In this case, the front tongue portion 27 includes the free tip 29 of the tongue tip 22 and the rear tongue portion facing the foot 23 of the tongue 21.

The positioning of the slots 25, 26 is chosen such that the distance between the stop 24 and the slots 25, 26 corresponds approximately to the thickness of the material of the projection 2 of the first coupling element 1. Thus, the tongue tip 22 can engage in the opening 3, wherein the slots protrude slightly from the opening. Thereby, the front tongue portion can be deformed to connect the first coupling member 1 with the second coupling member 20. The deformation of the tongue 21 of the second coupling element 20 takes place in the region of the side flanks 30, 31 of the tongue tip 22 in the region of the front tongue region 27. These are bent substantially parallel to the longitudinal axis of the tongue 21. It is conceivable that only one side edge 30 or both side edges 30, 31 are bent. In Figure 6 it can be seen that both side edges 30, 31 are bent in a S-shape. Alternatively, the two side edges 30, 31 are also bent C-shaped. Alternatively, only one of the side edges 30 or 31 can be bent, so that an approximately I-shaped contour is formed. FIG. 7 shows the arrangement according to FIG. 6 in a side view.

FIG. 8 shows a further exemplary embodiment of a second coupling element 40, which is formed with a tongue 41. The tongue 41 has a tongue tip 42, which is reduced with respect to the foot 43 of the tongue 41 in width. This reduction of the width via a shoulder 44, which also serves as a stop and divides the tongue tip 42 of the foot 43 of the tongue 41.

In FIGS. 9 and 10, the tongue tip 42 of the tongue 41 of the second coupling element 40 is inserted into the opening 3 of the first coupling element 1. In this case, beyond the opening and outstanding portion of the tongue tip 42 is rolled, so that the transverse slot of the tongue tip is widened and so a positive connection is generated.

A coupling element is preferably a pressure plate, a plate spring, a

Clutch cover, a spring, a transport lock, etc. The clutch is a single clutch or a double clutch, in particular a friction clutch.

LIST OF REFERENCE NUMBERS

first coupling element

head Start

opening

second coupling element

tongue

paragraph

slot

foot

tongue wings

second coupling element

tongue

foot

paragraph

slot

front tongue area

rear tongue area

free tip

side flank

second coupling element

tongue

foot

paragraph

Claims

claims

1 . Coupling with a first coupling element (1) and a second coupling element (4,20,40), wherein the first coupling element (1) has an opening (3) and the second coupling element (4,20,40) has a tongue (5,21 , 41), wherein the first coupling element (1) and the second coupling element (4, 20, 40) are connected to one another in such a way that the tongue (5, 21, 41) engages in the opening (3) and that through the opening (3) projecting portion of the tongue (5,21, 41) is plastically deformed.

2. Coupling according to claim 1, characterized in that the first coupling element (1) as an opening (3) has a slot.

3. Coupling according to claim 1 or 2, characterized in that the second coupling element (4,20,40) opposite a stop (7,24,44) protruding tongue tip (6,22,42) of the tongue (5,21, 41), which in the opening (3) or the slot is inserted to the stop, wherein the tongue tip (6,22,42) protrudes from the opening with a supernatant.

4. Coupling according to claim 1, 2 or 3, characterized in that the tongue (5) in the longitudinal direction in two tongue wings (10,11) is divided and for securing the tongue tip (6) in the opening, the two tongue wings (10, 1 1) are deformed in opposite directions or in the same direction.

5. Coupling according to claim 1, 2 or 3, characterized in that the tongue (21) in the transverse direction one or two lateral slots (25,26), so that the tongue tip (22) on a side edge (30,31) or is deformed on its side edges (30,31) for securing the tongue tip (22) in the opening (3).

6. Coupling according to claim 5, characterized in that the tongue tip (22) is c-, s- or I-shaped deformed.

7. Coupling according to claim 1, 2 or 3, characterized in that the tongue tip (42) at its through the opening (3) projecting front tongue area such rol- Neri is that there is a broadening, which is increased in relation to the extent of the opening.