CN105358853B - Clutch device - Google Patents

Abstract

A clutch with a first clutch element (1) and a second clutch element (4), wherein the first clutch element has an opening (3) and the second clutch element has a tongue (5), wherein the first clutch element and The second clutch elements are connected to each other such that the tongue engages into the opening and the area of the tongue protruding through the opening is plastically deformed.

Description

clutch

technical field

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

Background technique

Clutches, in particular for motor vehicles, have a plurality of parts which are partially connected to one another. The use of riveting elements has proven to be particularly effective here, since they can be installed in a more compact form than screw connections and nonetheless result in a durable connection. Such a riveting element is known, for example, from DE 10 2011 011 916 A1.

Of course, the riveting elements used can also be considered as additional components, which have to be procured, provided and installed, which means the effort and costs associated therewith.

Contents of the invention

It is an object of the invention to provide a clutch which is simplified with regard to assembly and reduced in cost compared to the prior art.

This object is achieved by means of the features of claim 1 .

One embodiment of the invention relates to a clutch having a first clutch element with an opening and a second clutch element with a tongue, wherein the first clutch element and the second clutch element are mutually The connection is such that the tongue engages into the opening and the region of the tongue protruding through the opening is plastically deformed. This achieves that the first and the second coupling element can be connected to each other in a form-fitting manner without additional elements.

In this case, it is particularly advantageous if the first coupling element has a gap as an opening. As a result, the tongue tip of the tongue made of sheet metal can be inserted well into the gap and can be fixed by plastic deformation. When the gap is only slightly larger than the tongue tip, a small deformation of the tongue tip can be sufficient to fix the connection between the two clutch elements.

It is also suitable for the second coupling element to have a tongue tip protruding relative to the stop, which tongue tip can be introduced into the opening or gap up to the stop, wherein the tongue tip protrudes from the opening to stick out. The insertion depth of the tongue tip is limited by the stop on the second clutch element and cannot engage too deeply into the opening.

In one embodiment of the invention, it is advantageous that the tongue tip is divided into two tongue wings in the longitudinal direction, and that in order to fix the tongue in the opening, the two tongue wings are direction or deform in the same direction. The two tongue wings are therefore bent in opposite directions, like two adjacent webs, so that they are aligned approximately at right angles to the orientation of the unbent tongue and bear against the first clutch element. As a result, a reliable form-fitting connection is achieved.

Particularly advantageously, the tongue tip comprises one or two lateral slits in transverse direction, so that the tongue tip is deformed on one side or on its sides in order to fix the tongue in the opening . Thus, the tongue tip can be deformed in the front part, ie in the area of the tongue tip, while the rear area of the tongue tip can remain undeformed. In this case, the deformed region is particularly preferably deformable so that the sides of the tongue tip are bent and thus a form-fit connection is achieved. The slot is positioned such that it is at a height approximately corresponding to the thickness of the material of the first clutch element, so that the region of the tip of the tongue protruding from the slot forms a tongue-like shape when the tongue is introduced into the opening. The tip of the piece protrudes from the opening on the other side of the slot. As a result, the tongue tip can be deformed on the other side of the gap and the two clutch elements can be connected in a simple form-fitting manner.

It is particularly advantageous here if the tongue tip is deformed in a c-shaped, s-shaped or l-shaped manner. This is advantageously achieved by deforming one or both sides of the tongue.

It is also advantageous if the tongue is rolled in the region of its end protruding through the opening, so that there is a widening which is enlarged relative to the size of the opening. A form-fitting connection between the clutch elements can thus be achieved by means of a simple rolling process.

Description of drawings

The present invention will be described in detail below in conjunction with the accompanying drawings according to preferred embodiments;

Shown here:

Figure 1 shows a first clutch element with an opening,

Figure 2 shows a second clutch element with a tongue,

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

Figure 4 shows a side view according to Figure 3,

Figure 5 shows a second clutch element with a tongue,

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

Figure 7 shows a side view according to Figure 6,

Figure 8 shows a second clutch element with a tongue,

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

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

Detailed ways

FIG. 1 shows a first clutch element 1 with a laterally protruding projection 2 in which an opening 3 is provided. The opening 3 is here formed as a slot which is formed along the first clutch element 1 in the transverse direction of the projection 2 .

FIG. 2 shows the second clutch element 4 , which is formed with tongues 5 . The tongue 5 has a tongue tip 6 which is reduced in width relative to a base 9 of the tongue 5 . This reduction in width takes place via the shoulder 7 which also serves as a stop and separates the tongue tip 6 from the bottom 9 of the tongue 5 .

The tongue tip 6 is divided into two tongue wings 10 , 11 by means of a slot 8 . In this case, the slot 8 in the exemplary embodiment of FIG. 2 extends along the extension 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 clutch element 4 is inserted into the opening 3 of the first clutch element 1 . In this case, the tongue wings of tongue tip 6 protruding relative to the opening are bent in opposite directions, so that tongue tip 6 with its tongue wings 10 , 11 rests flat against the On the projection 2 of the first clutch element 1 and a positive connection between the first clutch element 1 and the second clutch element 4 is brought about.

FIG. 5 shows a second clutch element 20 in a further embodiment of the invention, which is formed with a tongue 21 . The tongue 21 has a tongue tip 22 which is reduced in width relative to a base 23 of the tongue 21 . This reduction in width also takes place as in FIG. 2 via the shoulder 24 , which also serves as a stop and separates the tongue tip 22 from the base 23 of the tongue 21 .

The tongue tip 22 is divided into a front tongue area and a rear tongue area by means of a slot or, as shown in FIG. 5 , by means of two slots 25 , 26 . In this case, the front tongue region includes the free tip 29 of the tongue tip 22 and the rear tongue region faces the bottom 23 of the tongue 21 .

The positioning of the slots 25 , 26 is selected such that the distance between the stop 24 and the slots 25 , 26 approximately corresponds to the thickness of the material of the projection 2 of the first clutch element 1 . Thus, the tongue tip 22 engages into the opening 3 , wherein the slit protrudes slightly from the opening. As a result, the front tongue region can be deformed in order to connect the first clutch element 1 with the second clutch element 2 .

The deformation of the tongue 21 of the second clutch element 20 takes place here in the area of the sides 30 , 31 of the tongue tip 22 in the area of the front tongue. The sides are curved substantially parallel to the longitudinal axis of the tongue 21 . It can be provided here that only one side 30 or both sides 30 , 31 are curved. It can be seen in FIG. 6 that the two sides 30 , 31 are curved in an S-shape. Alternatively, the two sides 30 , 31 can also be curved in a C-shape. Alternatively, only one side 30 or 31 can also be curved, so that an approximately L-shaped contour results. FIG. 7 shows a side view of the device according to FIG. 6 .

FIG. 8 shows a further exemplary embodiment of a second clutch element 40 which is formed with tongues 41 . The tongue 41 has a tongue tip 42 which is reduced in width relative to a base 43 of the tongue 41 . This reduction in width is achieved via a shoulder 44 which also acts as a stop and separates the tongue tip 42 from the bottom 43 of the tongue 41 .

In FIGS. 9 and 10 , the tongue tip 42 of the tongue 41 of the second clutch element 40 is inserted into the opening 3 of the first clutch element 1 . In this case, the part of the tongue tip 42 which protrudes beyond and protrudes from the opening is rolled, so that the transverse gap of the tongue tip widens and thus produces a form-fit connection.

The clutch element is preferably a pressure plate, disk spring, clutch cover, spring, transport safety device or the like. The clutches here are single clutches or double clutches, such as in particular friction clutches.

List of reference signs:

1 first clutch element

2 protrusions

3 openings

4 Second clutch element

5 Tongues

6 Tongue tip

7 shoulders

8 gaps

9 bottom

10 Tongue wing

11 Tongue wing

20 Second clutch element

21 tongue

22 Tongue tip

23 bottom

24 shoulders

25 gaps

26 gaps

29 Spike of Liberty

30 side

31 side

40 Second clutch element

41 Tongue

42 Tongue tip

43 bottom

44 Shoulder

Claims (5)

1. one kind has the clutch of first clutch element (1) and second clutch element (4,20,40), wherein described first Clutch element (1) has opening (3), and the second clutch element (4,20,40) has tongue (5,21,41), Wherein described first clutch element (1) and the second clutch element (4,20,40) are connected to each other so that the tongue (5,21,41) are joined in the opening (3), and the area stretched out through the opening (3) of the tongue (5,21,41) Domain plastically turns down deformation, the second clutch element (4,20,40) have the tongue (5,21,41) relative to only The tongue tip (6,22,42) that (7,24,44) are stretched out is kept off, the tongue (5) is divided into two tongue wings along the longitudinal direction Portion (10,11), and in order to which the tongue tip (6) is fixed in said opening, two tongue alar parts (10, 11) deformation is turned down in opposite direction or in same direction.

2. clutch according to claim 1, it is characterised in that the first clutch element (1), which has, is used as opening (3) gap.

3. clutch according to claim 1 or 2, it is characterised in that the tongue tip can be incorporated into described open Until the backstop in mouthful (3), wherein the tongue tip (6,22,42) beyond portion from the opening to stretch out.

4. one kind has the clutch of first clutch element (1) and second clutch element (4,20,40), wherein described first Clutch element (1) has opening (3), and the second clutch element (4,20,40) has tongue (5,21,41), Wherein described first clutch element (1) and the second clutch element (4,20,40) are connected to each other so that the tongue (5,21,41) are joined in the opening (3), and the area stretched out through the opening (3) of the tongue (5,21,41) Domain plastically turns down deformation, and the tongue (21) includes one or two lateral gap (25,26) in transverse direction so that The tongue tip (22) turns down deformation so as to by institute on a side (30,31) or on its multiple side (30,31) Tongue tip (22) is stated to be fixed in the opening (3).

5. clutch according to claim 4, it is characterised in that the tongue tip (22) is c-shapely, in s shapes Or L-shaped deform.