KR100499776B1 - A wheel lockup device for an automobile - Google Patents

Abstract

The wheel fixing apparatus for a vehicle according to the present invention includes first and second frames that are in close contact with the front and rear wheels of an experimental vehicle, a connection part installed at both ends of the first and second frames and having a screw hole formed therein, and the screw holes. The first and second rotary shafts having a thread formed on the outer circumferential surface to be inserted, the first connecting shaft coupled to the gear between the first and second rotary shafts, respectively, so that the first and second rotary shafts are rotated simultaneously, and the first connecting shaft. Constraining means coupled to restrain the front and rear movement of the first and second frames, and a second connecting shaft coupled to one side of the first connecting shaft by a gear and the handle is formed at the end, the first, second Even when the frame is bitten by the wheels, the wheels can be firmly fixed without causing an unbalanced load, thereby preventing the wheels from rocking due to vibrations during the experiment.

Description

A wheel lockup device for an automobile}

The present invention relates to a wheel fixing device for a vehicle, and more particularly, in order to measure vibrations and noise generated from a brake of a vehicle, by improving a tightening structure so that unbalanced loads are not generated in a frame fixing a wheel that is not measured, an accurate test. This relates to a possible wheel fastener for a vehicle.

In general, the driving test is performed to improve the performance such as braking performance, driving performance, and vehicle durability, and the actual vehicle driving test performed on the road using the actual vehicle and an experiment that is difficult to measure through the actual vehicle driving test are carried out. Or, it is divided into the target driving test that experiments with the actual road and the same driving situation with the vehicle parts.

1 is a configuration diagram showing a typical vehicle driving tester, Figure 2 is a perspective view showing a vehicle wheel fixing apparatus according to the prior art.

As shown in FIGS. 1 and 2, a typical vehicle simulation driving tester is provided with a base plate 10 having a plurality of through holes 12 formed therein and a lower side of the base plate 10. The wheel T1 of the vehicle is supported and rotates by a motor (not shown), and comprises a rotating roller part 20, and drives the motor, thereby causing the wheel T of the vehicle to rub against the rotating roller part 20. Experiment by making the same environment as the driving environment of the actual vehicle by rotating it.

On the other hand, the wheel T2 that is not placed on the rotary roller unit 20 in the vehicle simulated driving tester as described above, the wheel fixing device for fixing the wheel (T2) of the vehicle to prevent the derailment or fluctuations generated during the experiment. 30 is installed.

The wheel fixing device 30 is installed on both ends of the first and second frames 32 and 34 in close contact with the front and rear surfaces of the wheel T2 of the experimental vehicle. And a connection portion 36 having a screw hole formed therein, a rotating shaft 38 formed on the outer circumferential surface to be inserted into the screw hole, and moving the first and second frames 32 and 34 forward and backward when rotated; One end is fixed to the second frame 34 as a bolt B so that the first and second frames 32 and 34 which are moved forward and backward when the rotation shaft 38 rotates are rotated, and the other end is first frame ( It comprises a parallel bar 40 movably inserted into the bracket 44 installed in the 32.

In addition, a plurality of pin holes 42 are formed on one side of the upper surface of the parallel bar 40, and a fixing hole formed to correspond to any one of the pin holes 42 of the pin holes 42 on the upper surface of the bracket 44. 45 is formed so that the fixing pin 46 is inserted and fixed.

Each of the first frame 32 and the second frame 34 is provided with a jig (33) (35) formed in the same shape as the wheel shape so as to increase the area of friction with the wheel of the vehicle on one side, the rotary shaft 38 The handle 39 is formed at one end so that it can be gripped during rotation, it is configured to facilitate the rotation.

Here, the rotation shaft 38 is formed in the direction opposite to the center of the screw thread symmetrically in the opposite direction, and together with the screw thread formed in the screw hole of the connecting portion 36 is formed in the direction opposite to the direction of the screw thread formed on the rotating shaft to Even when the rotation shaft 38 is rotated finely, the movement is configured to have a large effect.

Looking at the action of the vehicle wheel fixing device 30 configured as described above, as shown in the following, the wheel fixing device 30 is seated on the wheel of the vehicle that the experiment is not performed and the experimenter grips the handle 39 and then rotates The first and second frames 32 and 34 are engaged with the wheel T2 to fix the wheel T2 so as not to rotate.

However, the wheel fixing apparatus for a vehicle according to the prior art is installed in such a way that the rotating shaft is biased at one end, and when the rotating shaft is rotated, an unbalanced load is generated between the first and second frames, causing vibration in the vehicle during the driving test. There is a problem.

The present invention has been made in order to solve the above problems of the prior art, the rotating shaft for rotating the vehicle wheels to transport the first and second frames are installed at both ends of the first and second frames, It is an object of the present invention to provide a wheel fixing device for a vehicle that can firmly fix the wheels without generating a load even when two frames are bitten by the wheels.

The vehicle wheel fixing apparatus according to the present invention for solving the above problems is the first and second jig respectively provided with front and rear jig so as to be in close contact before and after the wheel of the experimental vehicle; Connection parts provided at both left and right ends of the first and second frames, respectively, and having screw holes formed therein; First and second rotation shafts disposed between the first and second frames, respectively, and each having a screw thread to be screwed into a screw hole of the connection part; A first connecting shaft disposed between the first and second rotating shafts and coupled to the first and second rotating shafts through first and second bevel gears, respectively, so that the first and second rotating shafts rotate simultaneously; A second connecting shaft connected to the first connecting shaft through a third bevel gear part and provided with a handle; A parallel bar in which the first connecting shaft is rotatably inserted and in which a plurality of pin holes are formed; A bracket installed on an upper surface of the first frame to receive the guide by inserting the parallel bar, and having a fixing hole formed therein; And a fixing pin inserted into one of the fixing hole of the bracket and the pin hole of the parallel bar to fix the distance between the first and second frames.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a wheel fixing apparatus for a vehicle according to the present invention.

As shown in FIG. 3, the wheel fixing apparatus for a vehicle according to the present invention includes first and second frames 72 and 74 in close contact with the front and rear wheels of an experimental vehicle, and the first and second frames 72 ( A connecting portion 76 provided at both ends of the terminal 74 and having a screw hole formed therein, first and second rotary shafts 80 and 82 having threads formed on an outer circumferential surface to be inserted into the screw hole, and the first and second rotary shafts ( The first connecting shaft 84 is coupled between the first gear portion G1 and the second gear portion G2, respectively, between the first and second rotation shafts 80 and 82, respectively. And restraining means (90) coupled to the first connecting shaft (84) to restrain the forward and backward of the first and second frames (72) and (74), and on one side of the first connecting shaft (84). It is configured to include a second connecting shaft 86 coupled to the third gear portion (G3) and the handle 87 is formed at the end.

Here, the first jig 72 and the second frame 74 is provided with front and rear jig 73, 75 formed in the same shape as the wheel shape of the vehicle to increase the area of friction with the wheel on one side.

Meanwhile, the first and second gear parts G1 and G2 connecting the first and second rotational shafts 80 and 82 to the first connection shaft 84 are each formed of a pair of bevel gears that are vertically bited. The first gear part G1 and the second rotation shaft 82 coupled to the first rotation shaft 80 so that the rotation directions of the first and second rotation shafts 80 and 82 may be rotated in the same direction. The second gear portion (G2) is installed in the opposite direction is coupled.

In addition, the third gear portion G3 connecting the first connecting shaft 84 and the second connecting shaft 86 is also composed of a pair of bevel gears that are vertically bitten.

In addition, a plurality of supporters 78 may be installed on the first and second frames 72 and 74 to support the first connection shaft 84 and the first and second rotation shafts 80 and 82. . In addition, the first and second connection shafts 84 and 86 may also be rotatably supported by the supporter 78.

That is, when the knob 87 is rotated, a rotational force is transmitted to the first connecting shaft 84 via the second connecting shaft 86 so that the first rotating shaft 82 and the second rotating shaft 84 are simultaneously. Each front and rear jig (73) (75) of the front and rear of the wheel is rotated and both ends of the first frame (72) and the second frame (74) are moved at the same time to fix the wheel with a constant force Or loosen a fixed wheel.

The first and second rotary shafts 80 and 82 are symmetrically about a central portion thereof, and the threads formed on the outer circumferential surfaces of the first and second rotary shafts 80 and 82 are formed in a reverse direction. The formed threads are formed in a direction corresponding to the threads formed on the first and second rotation shafts 80 and 82, so that the first and second frames 72 are moved even if the first and second rotation shafts 80 and 82 are finely moved. The movement effect of 74 is large.

The restraining means 90 has an insertion hole formed at one end thereof so as to be inserted into the first connecting shaft 84 so that one side of the first connecting shaft 84 is rotatably inserted and a plurality of pinholes 94 at the other end thereof. ) Is formed in the parallel bar 92, and the parallel bar 92 is installed on one side of the upper surface of the first frame 72 so that the guide is inserted into the fixing hole corresponding to any one of the pinhole 94 on the upper surface ( 97 is formed of a bracket 96, the fixing pin 98 is inserted into the pin hole 94 and the fixing hole 97 when the first frame 72 and the second frame 74 is fixed to the Even if the force compressing the wheel is removed, the rear jig (73) 75 is not released before fixing the wheel.

Looking at the action of the wheel fixing device for a vehicle configured as described above are as follows.

First, the vehicle is put into a vehicle simulation driving tester, and the vehicle wheel fixing device 70 is mounted on a wheel on which the vehicle does not perform a driving test to fix the vehicle so as not to move during the driving test.

More specifically, the first frame 72 and the second frame 74 are positioned so that the front and rear jigs 73 and 75 are brought into close contact with the front and rear surfaces of the wheel on which the driving test is not performed. Rotate

In addition, the handle 87 is rotated to rotate the second connecting shaft (86), whereby the third gear portion formed by the rotational force of the second connecting shaft (86) at the end of the second connecting shaft (86) It is transmitted to the first connecting shaft 84 by G3. In addition, the rotational force transmitted to the first connecting shaft 84 rotates the first rotating shaft 80 and the second rotating shaft 82 at the same time.

In this case, the first rotation shaft 80 and the second rotation shaft 82 are rotated by being bitten at the connecting portions provided at both ends of the first frame 72 and the second frame 74, thereby the first frame 72 ) And the second frame 74 is moved and the front and rear jigs 73 and 75 are bitten at the front and the rear of the wheels, respectively.

When the wheel is fixed by the front and rear jig (73, 75) as described above, the pinhole 94 and the bracket of the parallel bar 92 so that the front, rear jig (73, 75) is not loosened by the wheel The fixing pin 98 is inserted into the fixing hole 97 of the 96.

On the other hand, when the driving test of the vehicle is completed, the wheel fixing device 70 is locked in the reverse order to separate from the vehicle.

Although the wheel fixing apparatus for a vehicle according to the present invention has been described with reference to the illustrated drawings as described above, the present invention is not limited by the embodiments and drawings disclosed herein, and various modifications are made by those skilled in the art within the technical scope of the present invention. Of course this can be done.

The wheel fixing apparatus for a vehicle of the present invention configured as described above is coupled to a gear between the first and second rotary shafts, respectively, so that the first and second rotary shafts are simultaneously rotated and coupled to the first connection shaft. And including restraining means for restraining the movement of the first and second frames before and after the first and second frames, so that even when the first and second frames are bitten by the wheels, the wheels are firmly fixed without causing a load. There is an effect that can block the wheel from shaking by the generation of vibration during the experiment.

1 is a configuration diagram showing a typical vehicle driving tester,

Figure 2 is a perspective view of the wheel fixing device 30 for a vehicle according to the prior art,

3 is a perspective view showing a wheel fixing apparatus for a vehicle according to the present invention.

<Explanation of symbols on main parts of the drawings>

70: wheel fixing device 72: the first frame

73: front jig 74: second frame

75: rear jig 76: connection

78: supporter 80: first rotating shaft

82: second rotating shaft 84: first connecting shaft

86: second connecting shaft 87: handle

90: restraining means 92: parallel bars

94: pinhole 96: bracket

97: fixing hole

Claims (2)

First and second frames each provided with front and rear jigs so as to be in close contact with the wheels of the test vehicle before and after; Connection parts provided at both left and right ends of the first and second frames, respectively, and having screw holes formed therein; First and second rotation shafts disposed between the first and second frames, respectively, and each having a screw thread to be screwed into a screw hole of the connection part; A first connecting shaft disposed between the first and second rotating shafts and coupled to the first and second rotating shafts through first and second bevel gears, respectively, so that the first and second rotating shafts rotate simultaneously; A second connecting shaft connected to the first connecting shaft through a third bevel gear part and provided with a handle; A parallel bar in which the first connecting shaft is rotatably inserted and in which a plurality of pin holes are formed; A bracket installed on an upper surface of the first frame to receive the guide by inserting the parallel bar, and having a fixing hole formed therein; And a fixing pin inserted into one of the fixing hole of the bracket and the pin hole of the parallel bar to fix the distance between the first and second frames. The method of claim 1, The first and second connecting shafts and the first, second and third bevel gear parts are provided on an upper surface of the first frame; The first frame is a wheel fixing device for the vehicle, characterized in that at least one support for rotatably supporting at least one of the first, second rotation shaft and the first, second connecting shaft.