DE102012003703A1 - Device for automatically pressing balancing weight used for balancing wheel of motor car, has pressing elements that are pressed with pressing device against balancing weight at predetermined contact pressure - Google Patents

Abstract

The device (12) has pressing elements (18,23) such as roller or roll that are pressed with a pressing device (17) against a balancing weight (11) at a predetermined contact pressure. The balancing weight is pressed at a rim cladding (19) in the region of a wheel rim and/or in the region of a rim hub. A centering device is provided for centering the motor car wheel having an aluminum rim.

Description

Device for the automatic pressing of at least one balancing weight for balancing a motor vehicle wheel with at least one pressing element.

According to the prior art, the balancing weight is glued to a motor vehicle rim. For this purpose, it is previously applied manually on a motor vehicle rim and then pressed with hammer blows on the vehicle rim. Since the hammer blows act only selectively on the balancing weight, they can not press the balancing weight uniformly along the entire adhesive surface. In addition, the balancing weight can bend by the hammer blows, whereby a uniform concern of the balancing weight can be prevented. The balancing weight can thus be released from the vehicle rim over time.

The invention has the object to provide a device with which the balancing weight can be reliably attached to a motor vehicle rim.

The object is achieved by a device for automatic pressing of at least one balancing weight for balancing a motor vehicle wheel with at least one pressing element, which can be pressed against the balancing weight with a specific contact pressure with at least one pressing device. The device can uniformly press the balancing weight over an entire adhesive surface to a motor vehicle rim. The contact pressure generated in this way is well above the producible by hammer blow pressure. In this way, the balancing weight can be reliably attached to the motor vehicle rim. The danger that it dissolves from the vehicle rim is therefore very low.

In a preferred and cost-effective embodiment, the at least one pressing device may have a piston guided in a cylinder. The pressing device can be operated pneumatically. For this purpose, compressed air can act on the piston in the cylinder, so that the pressing device can press the at least one pressing element against the balancing weight. Alternatively, the pressing device can also be operated hydraulically.

The at least one pressing element can be carried out very inexpensively as a roll or roller.

In practice, the at least one balancing weight is preferably attached to a rim casing in the region of a rim edge and / or in the region of a rim hub. Therefore, with the device, the at least one balancing weight is expediently pressed against the rim casing in the region of the rim edge and / or in the region of the rim hub on which the motor vehicle rim can be screwed onto the motor vehicle.

In a preferred embodiment, the device may have three pressing elements for pressing the at least one balance weight in the region of the rim edge and three pressing elements for pressing the at least one balance weight in the region of the rim hub. Thus, a particularly reliable attachment of the balancing weight is ensured, since during the rotation of the motor vehicle wheel designed as rollers or rollers contact rollers roll on the motor vehicle rim and thus several times roll over the balancing weight. In this way, by a rotation of the vehicle wheel, the balancing weight is pressed several times to the motor vehicle rim.

In order to distribute the three pressing elements uniformly in the region of the rim edge and / or in the region of the rim hub, they can be arranged at an angle of 120 ° to one another in the region of the rim edge and / or in the region of the rim hub.

In order to be able to ensure a reliable attachment of the at least one balance weight to the motor vehicle rim, it is helpful if the vehicle wheel is centered in the device before the balancing weight is pressed. For this purpose, the device may have a centering device.

So that the motor vehicle wheel can be rotated in the device, it can have a drive for generating a rotational movement. The drive can preferably be operated pneumatically in order to use an already existing compressed air network. Alternatively, however, hydraulically or electrically operated drives are possible.

Appropriately, the contact pressure with which the at least one balance weight can be pressed against the motor vehicle rim can be set to different values.

In particular, when the motor vehicle rim is an aluminum rim, particularly good results are achieved with the device.

Hereinafter, an embodiment of a device will be explained in more detail with reference to the accompanying drawings.

In detail show:

1 a plan view of the device and a motor vehicle wheel;

2 a longitudinal section through the device.

The 1 and 2 show a schematically illustrated motor vehicle rim 10 a motor vehicle wheel. On the vehicle rim 10 can be raised a not shown here tire casing.

At the vehicle rim 10 are balance weights 11 fastened to balance the vehicle wheel. The balance weights 11 can be in the area of a rim edge 20 or in the area of a rim hub 14 be attached with a tape. First, the balancing weights are prefixed with the adhesive tape at a certain point by being lightly pressed against the vehicle rim by hand.

Subsequently, the balance weights 11 with a device 12 automatically to the vehicle rim 10 be pressed permanently. Before pressing the vehicle wheel by means of a centering device 13 in the device 12 centered. The centering device 13 is designed as a bolt passing through the rim hub 14 is plugged. In order to hold the motor vehicle wheel in the device without any further attachment, it is lying in the device 10 arranged so that it is held in its position by gravity.

Below the centering device 13 a wave 15 provided by means of a drive 16 can be put into a rotary motion.

pressing devices 17 Pressing pressing elements 18 and 23 against a rim 19 , The pressing elements 18 press in the area of the edge of the rim 20 arranged balance weights 11 and the pressing elements 23 press in the area of the rim hub 14 arranged balance weights 11 to the rim 19 ,

For pressing the pressing devices move 17 in the direction of double arrows 21 and the pressing devices in the direction of double arrows 22 , The pressing elements 18 and 23 are designed as roles. For automatic pressing of the balance weights 11 becomes the wave 15 put into the rotary motion. It preferably describes a rotation angle of 180 °. When the wave 15 turns, the pressing elements roll 18 and 23 on the rim 19 from. They also roll over the balance weights 11 , while rolling over against the rim 19 be uniformly pressed over their entire length and width.

After the balancing weights 11 to the rim 19 are pressed, the pressing elements 18 with the pressing devices 17 from the motor vehicle rim 10 lifted. For this purpose, the pressing elements move 18 and the pressing devices 17 along the double arrows 21 and 22 back. Subsequently, the vehicle wheel of the device 12 be removed.

Although at least one embodiment has been described in detail above, it goes without saying that nevertheless a large number of further embodiments exist. It should be emphasized that the at least one embodiment is not intended to limit the scope, scope or exact embodiment of the invention in any way. Instead, the foregoing description is intended to provide those skilled in the art with only a guide to implement at least one embodiment. Of course, many alternatives are possible with regard to the function and the arrangement of the elements described, without departing from the scope of the following claims.

LIST OF REFERENCE NUMBERS

10

Motor vehicle rim

11

balance weight

12

contraption

13

centering

14

rim hub

15

wave

16

drive

17

pressing device

18

presser

19

rims coat

20

rim

21

double arrow

22

double arrow

23

presser

Claims (13)

Contraption ( 12 ) for automatically pressing at least one balancing weight ( 11 ) for balancing a motor vehicle wheel with at least one pressing element ( 18 . 23 ), which is connected to at least one pressing device ( 17 ) against the balancing weight ( 11 ) Can be pressed with a certain contact pressure. Contraption ( 12 ) according to claim 1, wherein the at least one pressing device ( 17 ) has a guided in a cylinder piston. Contraption ( 12 ) according to claim 1 or 2, wherein the at least one pressing element ( 18 . 23 ) is a roll or a roller. Contraption ( 12 ) according to one of claims 1 to 3, wherein the at least one balancing weight ( 11 ) on a rim casing ( 19 ) in the region of a rim edge ( 20 ) and / or in the region of a rim hub ( 14 ), to which the motor vehicle wheel can be screwed onto the motor vehicle, can be pressed on. Contraption ( 12 ) according to claim 4, wherein it has three contact elements ( 18 ) for pressing the at least one balance weight ( 11 ) in the region of the edge of the rim ( 20 ) and three pressing elements ( 18 . 23 ) for pressing the at least one balance weight ( 11 ) in the area of the rim hub ( 14 ) having. Contraption ( 12 ) according to claim 5, wherein the three pressing elements ( 18 ) for pressing the at least one balance weight ( 11 ) in the region of the edge of the rim ( 20 ) are arranged at an angle of 120 ° to each other. Contraption ( 12 ) according to claim 5 or 6, wherein the three pressing elements ( 23 ) for pressing the at least one balance weight ( 11 ) in the area of the rim hub ( 14 ) are arranged at an angle of 120 ° to each other. Contraption ( 12 ) according to one of claims 1 to 7, wherein it has a centering device ( 13 ) for centering the vehicle wheel. Contraption ( 12 ) according to one of claims 1 to 8, wherein the at least one pressing device ( 17 ) is pneumatically operable. Contraption ( 12 ) according to one of claims 1 to 9, wherein it has a drive ( 16 ) for generating a rotational movement. Contraption ( 12 ) according to one of claims 1 to 10, wherein the contact pressure is adjustable to different values. Contraption ( 12 ) according to claim 10 or 11, wherein the drive ( 16 ) is also pneumatically operated. Contraption ( 12 ) according to one of claims 1 to 12, wherein the motor vehicle wheel has an aluminum rim.

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