FI90215C - A device to facilitate the installation and removal of vehicle wheels - Google Patents

Description

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DEVICE FOR EASY INSTALLATION AND REMOVAL OF VEHICLE WHEELS - ANORDNING FOR ATT UNDERLATTA MONTERING OCH DEMONTERING AV FORDONSHJUL

5

The present invention relates to a device for facilitating the installation and removal of vehicle wheels by means of a tool which mechanically tightens and loosens the nuts or bolts of the vehicle wheels.

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As is known, this is a task which involves awkward positions and which has led to various injuries, for example to the back, hand and knees. Wheels, which are slightly heavier than usual, are particularly difficult to lift and install in place to secure the bolts.

The object of the present invention is to provide a device which makes it possible to install and remove the wheels of a vehicle without physical exertion and in a good working position.

20

This object is achieved according to the invention by a device which is characterized by what is defined in the characterizing parts of the appended claims.

In order that the invention may be more readily understood and the advantages provided thereby apparent, the invention will now be described with reference to the accompanying schematic drawing, in which all figures are side views and in which: Figure 1 shows a device according to the invention when moved towards a hub;

Figure 2 shows the device as it lifts the wheel; and Figure 3 shows the removal of a wheel firmly attached to the hub of the wheel.

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When removing or installing a vehicle wheel, the vehicle is usually raised so that all wheels, or at least one wheel at a time, are off the ground or only 5 off the ground.

In order to eliminate the stresses and acute discomfort associated with removing and installing the wheels of a motor vehicle, the disclosed embodiment 10 of the device according to the invention handles a low carriage 1 resting on the wheels 2. The carriage is provided with a substantially vertical support device which is mounted to bend to a limited extent in its lateral direction and in the longitudinal direction of the carriage. The support device has an upper part 4 which is telescopically mounted on the lower part 5 and which is provided at its upper part with a cadence 6. The upper part 4 is mounted with a rotatably pneumatic tool 7 for mechanically tightening and loosening the wheel nuts or bolts. mutterikiristin. The tool is mounted so as to normally point downwards, 20 but can be raised to a position in which it is substantially at right angles to the support device 3, by a strong wire 8 'fixed to the tool and movable by an auxiliary arm 8.

The tool is connected to the pneumatic connection via an actuator 10 located in the cadence 6 by a selection of compressed air lines (not shown).

The lower part 5 of the support device 3 is mounted on a joint 11 and an articulated arm 12 is formed therein. A roller 14 is placed on the rollers 13 against the tool 7, which is to be mounted on the wheel hub 15 of the vehicle, which is provided with bolts 16 into which the fastening holes in the wheel 14 are fitted. This arrangement is effected by braking- 3 o o O Ί! "

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by placing the carriage in place, for which purpose the foot-operated brake arrangement 17 is used, and then the support device is pulled backwards so that the articulated arm raises the rollers and at the same time the wheel 14 to the desired height at the same time as the wheel. the wheel hub bolts 16 (Fig. 2).

The tool 7 is connected to the compressed air line (Fig. 3) by means of a connection 9, after which the tool is raised to the working position by means of the auxiliary arm 8. The tool can then be aligned with the nut or bolt points by tilting the support device sideways and raising or lowering the top of the device. Once the nuts are in place, the tool can be brought into contact with each bolt 16 alternately by moving the support forward.

The nuts are unscrewed in a similar manner, although when the nut is unscrewed, the support device is moved slightly backwards and the auxiliary arm is released so that the tool 7 is pressed down, the nut marked with reference numeral 18 in Fig. 3 usually falling off but to the silo 19.

When all the nuts have been removed, the support device 3 is moved backwards 25 so that the rollers 13 slightly raise the wheel 14, which detaches the wheel from the bolts 16, causing the wheel to fall on the support device 3 or down the tilted tool 7 to the position shown in Fig. 1.

It will be apparent to those skilled in the art that the invention is not limited to the above exemplary embodiments, but may be varied within the scope of the appended claims. Thus, the articulated arm 12 can be omitted and the rollers 13 are selectively mounted on the carriage 1, whereby it is impossible to tilt the carriage around its rear wheels when it is desired to raise the rollers 13. In addition, the device 4 9021 5 according to the invention can be connected to a crane. Compressed air can also be used to lift the rollers 13 instead of the articulated arm 12.

Claims (2)

1. Device may fail to mount and disassemble the wheels of a vehicle using a tool for machine screwing or unscrewing of the nuts or screws of the wheels, comprising a low wave (1) provided with a pivot (13) support for fixing the lower the portion of an upright upright wheel (1 * 0) and a pivotally guided, upwardly directed, upwardly directed city device (3) to which the wheel (14 ·) may be inclined, bounded by the wagon in the longitudinal direction, characterized by the addition of the upwardly directed city device steerable ridge in the transverse direction of the trolley and has an outer portion (4) provided with a handle (6), which is telescopically stored on a lower portion (5) of the city device and supports the tool (7), which by means of the city device (3) years arranged rearwardly in the headland and laterally and seated in turn against the nuts of the wheel (14) without intervening lateral movement of the carriage (1). 2. Device according to claim 1, characterized in that the tool (7) is tilted downwardly by a man-arm (8) arranged on the city device (3). 1 Device according to claim 1 or 2, characterized in that the carriage is connected to a compressed air source, which serves to maneuver the support (13) upwards and downwards and before driving the tool (7).