TORQUE TRANSMISSION DEVICE

Abstract

A torque transmission device, in particular for a flap of a heating, ventilation, or air conditioning system of a motor vehicle, having a drive lever, an output lever, and having a connecting rod, wherein the drive lever can be rotatably disposed with respect to a first axis and can be connected to a driving element, wherein the output lever can be rotatably disposed with respect to a second axis and can be connected to an element to be driven, wherein the connecting rod is connected in an articulated manner to the drive lever and to the output lever, wherein the connecting rod is formed connected to the drive lever and/or to the output lever by means of a film hinge.

Claims

1. A torque transmission device for a flap of a heating, ventilation, or air conditioning system of a motor vehicle, the torque transmission device comprising: a drive lever; an output lever; and a connecting rod, wherein the drive lever is adapted to be rotatably disposed with respect to a first axis and is connectable to a driving element, wherein the output lever is adapted to be rotatably disposed with respect to a second axis and is connectable to an element to be driven, wherein the connecting rod is connectable in an articulated manner to the drive lever and to the output lever, wherein the connecting rod is formed connected to the drive lever and/or to the output lever via a film hinge.

2. The torque transmission device according to claim 1, wherein the connecting rod is formed connected to the drive lever and to the output lever in each case by a film hinge.

3. The torque transmission device according to claim 1, wherein the connecting rod and the drive lever are formed in one piece or the connecting rod and the output lever are formed in one piece or wherein the connecting rod, the drive lever, and the output lever are formed in one piece.

4. The torque transmission device according to claim 1, wherein the connection, not formed as a film hinge, between the connecting rod and the drive lever or with the output lever is made as a positive connection or by a ball head, pin, bayonet, clip, or plug connection.

5. The torque transmission device according to claim 1, wherein the connecting rod and/or the drive lever and/or the output lever are produced as plastic parts and/or as injection molded parts.

6. The torque transmission device according to claim 1, wherein the drive lever has a receptacle and/or a connecting element for connecting a drive shaft of a driving element.

7. The torque transmission device according to claim 1, wherein the driving element is an actuator, a stepper motor, an electric motor, or a Bowden cable.

8. The torque transmission device according to claim 1, wherein the output lever has a receptacle and/or a connecting element for connecting to an element to be driven, in particular to a flap.

9. A heating, ventilation, or air conditioning system of a motor vehicle comprising a flap for controlling an airflow in an air duct and with a drive motor for actuating the flap, wherein a torque transmission device is provided according to claim 1, wherein the torque transmission device is formed having a drive lever, an output lever, and a connecting rod, wherein the drive lever is rotatably disposed with respect to a first axis and is connected to the drive motor, and wherein the output lever is rotatably disposed with respect to a second axis and is connected to the flap.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0016] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawing which is given by way of illustration only, and thus, are not limitive of the present invention, and the sole FIGURE shows a schematic representation of an exemplary embodiment of a torque transmission device of the invention of a heating, ventilation, or air conditioning system of a motor vehicle.

DETAILED DESCRIPTION

[0017] The FIGURE shows, in a schematic representation, an exemplary embodiment of a torque transmission device 1 of the invention, as it can be used, for example, in a heating, ventilation, or air conditioning system 2 of a motor vehicle. In this regard, the torque transmission device is used to actuate a flap 3 or another element 3 to be driven by means of a driving element 4. Driving element 4 is preferably an electric motor, a pneumatic actuator, a hydraulic actuator, etc.

[0018] Torque transmission device 1, in particular for a flap 3 of a heating, ventilation, or air conditioning system 2 of a motor vehicle, has a drive lever 5, an output lever 6, and a connecting rod 7.

[0019] Drive lever 5 can be rotatably disposed with respect to a first axis 8 and can be connected to driving element 4. Here, the FIGURE only schematically shows the rotatable arrangement with respect to axis 8.

[0020] Output lever 6 can be rotatably disposed with respect to a second axis 9 and can be connected to an element 3 to be driven. Here, the FIGURE only schematically shows the rotatable arrangement with respect to axis 9.

[0021] Connecting rod 7 is connected in an articulated manner to drive lever 5 and to output lever 6. For this purpose, a connecting joint 10, 11 is provided in each case.

[0022] According to the invention, connecting rod 7 is formed connected to drive lever 5 and/or to output lever 6 by means of a film hinge 12. Correspondingly, connecting joint 10 and/or connecting joint 11 or connecting joints 10, 11 are formed as a film hinge 12 or as film hinges 12. In an advantageous embodiment, connecting rod 7 is formed connected to drive lever 5 and to output lever 6 in each case by means of a film hinge 12.

[0023] With this design, connecting rod 7 and drive lever 5 can be formed in one piece or connecting rod 7 and output lever 6 can be formed in one piece or connecting rod 7, drive lever 5, and output lever 6 can be formed together in one piece.

[0024] For the case that both connecting joints 10, 11 are not formed as a film hinge 12, connecting joint 10, 11, which is not formed as a film hinge 12, between connecting rod 7 and drive lever 5 or with output lever 6 can be made as a positive connection, such as, for example, a ball head, pin, bayonet, clip, or plug connection, which is not shown in the FIGURE, however.

[0025] In the exemplary embodiment shown, it is particularly advantageous if connecting rod 7 and/or drive lever 5 and/or output lever 6 are manufactured as plastic parts, in particular as injection molded parts or extruded parts, etc. As a result, an efficient production can be achieved at low cost, wherein film hinge 12 or film hinges 12 can be produced in a very precisely reproducible manner in terms of their wall thickness, which allows the elasticity of film hinge 12 to be well defined.

[0026] The FIGURE shows that drive lever 5 has a receptacle 13 and/or a connecting element for connecting a drive shaft 14 of driving element 4. For this purpose, in the simplest case, drive shaft 14 can be inserted into receptacle 13 and secured by positive-locking measures in order to be able to transmit a torque. An approximately star-shaped inner profile 15 can be seen as positive-locking measures in the FIGURE, which, however, can also be formed as a square profile, or in general as a polygonal profile.

[0027] Output lever 6 is also designed such that it has a receptacle 16 and/or a connecting element for connecting to an element 3 to be driven. In this regard, element 3 to be driven can be a flap which can be connected to output lever 6, for example, via a plug connection. Optionally, output lever 6 could also be designed in one piece with flap 3.

[0028] The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.