JPH08197932A - Vehicle height adjusting method and device - Google Patents

Abstract

PURPOSE: To enable a worker to adjust the vehicle height while confirming the present vehicle height by looking at a display device so as to adjust the vehicle height dimension accurately in a very short time by himself, thereby improving the efficiency of adjusting work by a large margin. CONSTITUTION: Vehicle height detecting rods 13 with detecting needles provided at the lower ends are mounted to lower brackets 21, opposedly to a conductive floor 12, and the vehicle height detecting rods 13 are electrically connected to a display device 14 by electric cords 34 to adjust the vehicle height. When the detecting needles come in contact with the conductive floor 12, an electric circuit is closed to display on the display device 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle height adjusting method and device for a vehicle, and more particularly to a vehicle height detecting rod to which a display device is electrically connected is attached to a lower arm bracket of each wheel. By adjusting the height and operating the display device when the vehicle height dimension of the vehicle is within the allowable dimension, the vehicle height of the vehicle can be adjusted while observing the display device, and the vehicle TECHNICAL FIELD The present invention relates to a vehicle height adjusting method and device for a vehicle capable of adjusting the vehicle height dimension and saving labor.

[0002]

2. Description of the Related Art In the final step of assembling a vehicle, there is a vehicle height adjustment work. Since the adjustment work is performed by independently adjusting the height of each wheel, at least the same work is performed four times. There is a need to do.

That is, if the vehicle height is different for each wheel, the balance of the vehicle is disturbed and the running performance is hindered. Therefore, the dimensions are strictly controlled, and the vehicle heights at four locations are the same within the allowable range. Must be adjusted to be high.

In the conventional vehicle height adjustment work, in FIG. 6, one operator is fitted with the contact point 9a of the height gauge 9 at the center of the portion where the vehicle height is to be set, for example, the connecting point of the lower arm 8L of the lower arm bracket 7. While the height gauge 9 is being monitored, another worker enters below the vehicle and the adjustment arm 4 is screwed to the stud bolt 2 by a stud bolt 2 and a nut 3 fixed to the chassis frame 1 of the vehicle. Adjust by moving as shown by arrows A and B,
The upper arm 8 connected to the torsion bar and the wheel 6 by twisting the torsion bar 5 in the direction of arrow C or D.
U is swung to move the vehicle body relative to the wheels 6 with arrows E,
As shown in F, the height of the connecting point of the lower arm bracket 7 with the lower arm 8L at that time is adjusted by the height gauge 9
The probe 9a of is moved up and down as shown by arrows G and H to measure,
I was adjusting the vehicle height.

In practice, the adjustment arm 4 is loosened by loosening the nut 3.
Every time the vehicle height is adjusted by changing the vehicle height, the vehicle height is raised or lowered in response to a command from the operator who is monitoring the height gauge 9 so that the vehicle height is within a tolerance, for example, within 2 mm. There is.

The above-described vehicle height adjustment work is performed on four wheels in a similar manner. Therefore, when the vehicle heights of the adjusted wheels are adjusted for the other wheels, the center-to-center dimension of the left and right wheels changes, which has an effect. The vehicle height may change in response to this, and after all the wheels have been adjusted, three workers shake the vehicle in the front-rear direction to eliminate the effect of center-to-center dimensional change of the left and right wheels. Was checked again and if it was not within the tolerance, it was readjusted, and the work was inefficient, and there was room for improvement.

In addition, since the position for performing the vehicle height adjustment work and the height gauge 9 are separated from each other, even if at least two workers, usually three workers, pay close attention, each vehicle has about 6 hours. This is a difficult work that requires a lot of work, and has a drawback that the burden on the worker is large.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art. The purpose of the present invention is to electrically conductive a part of the vehicle body for adjusting the vehicle height. By mounting a vehicle height detection rod that is compliant, and when the tip of the vehicle height detection rod comes into contact with the conductive floor, an electrically closed circuit is formed to display, for example, a lamp of a display device by lighting. That is, the vehicle height adjustment work can be performed by one person while looking at the display device, and the work time of the vehicle height adjustment work can be significantly shortened by this.

Still another object is to mount a vehicle height detection rod having a length set to an upper limit dimension and a lower limit dimension of an allowable vehicle height, on a part of a vehicle body for adjusting the vehicle height. By displaying on the display device that the tip of the detection rod has come into contact with the conductive floor, whether the vehicle height is immediately within the permissible dimension or larger than the permissible dimension simply by looking at the display device while the worker is working, It is to make it possible to confirm whether the vehicle is small without leaving the work place, and to facilitate the adjustment work and to adjust the vehicle height with high accuracy.

Still another object is to carry out vehicle height adjustment work by loading each wheel on a vehicle loading platform which is independently reciprocally movable in the width direction of the vehicle, so that the wheel height caused by the vehicle height adjustment is adjusted. This is to make it possible to absorb the change in the center-to-center distance by automatically reciprocating the vehicle loading platform, and by doing this, every time the vehicle height is adjusted, the vehicle is rocked to eliminate the adjustment error. It is unnecessary to improve work efficiency.

Another object is to detect a vehicle height by mounting a rod member whose length can be changed by adjusting the position of the detection needle on an electric insulator which can be screwed to a lower arm bracket of a vehicle. By configuring the rod, it is possible to easily support multiple vehicle heights simply by changing the length of the rod member according to the vehicle height that differs for each vehicle type, and even if there is a vehicle type change, a single vehicle height adjustment is possible. It is to make it possible to deal with the device, and to make it possible to easily attach / detach the vehicle height adjusting device to / from the lower arm bracket by a simple work of screwing by hand.

[0012]

In summary, the method of the present invention (Claim 1) is set so that the length thereof is set to the vehicle height of a part of the vehicle body and is hung from the part of the vehicle body. The vehicle height of the vehicle is adjusted by electrically forming a closed circuit when the conductor comes into contact with the conductive floor and operating the display device to display.

Further, the device of the present invention (claim 2) is a vehicle in which each wheel of the vehicle is loaded and is configured to be reciprocally movable in the left-right direction of the vehicle so as to absorb the variation in the center distance in the width direction of the vehicle. A loading platform, a plurality of conductive floors disposed under a part of the vehicle body corresponding to the wheels of the vehicle, and a length of the vehicle body that is mounted so as to hang from a portion of the vehicle body Of a plurality of vehicle height detection rods, each of which is set to an upper limit dimension and a lower limit dimension of an allowable dimension of a vehicle height, and a vehicle height detection rod provided for each vehicle height detection rod. When the vehicle comes into contact with the conductive floor, an electrically closed circuit is formed to display that the vehicle height detection rod has come into contact with the conductive floor.

The device of the present invention (claim 3) is an electric insulator which can be fixed to a lower arm bracket of a vehicle by a screw, a ring-shaped conductor mounted on the electric insulator, and one end of which is the ring-shaped conductor. And a rod member that is electrically connected to the other end of which a detection needle is provided at the other end so that the position can be adjusted in the length direction.

[0015]

When the vehicle height is adjusted, the two vehicle height detection rods whose lengths are adjusted to the upper and lower limit dimensions of the vehicle height are fixed to the lower arm brackets of the wheels with screws, and the vehicle height detection rods are fixed to the vehicle height detection rods. The electrically connected electrical cord is connected to the connector of the display device to prepare for adjustment.

Then, when the vehicle height is adjusted by operating the adjusting screw by entering the lower part of the vehicle, the vehicle height is detected by adjusting the screw so as to lower the vehicle height when the vehicle height is higher than the allowable dimension. The rod also descends, and the tip of the detection needle of the vehicle height detection rod, which is set to the upper limit of the vehicle height allowable dimension, comes into contact with the conductive floor to close the electric circuit, and the OK lamp of the display device lights up. Notify the worker that the vehicle height is below the upper limit.

When the vehicle height is further lowered by adjusting the screw, the tip of the detection needle of the vehicle height detection rod set to the lower limit of the allowable dimension also comes into contact with the conductive floor to close the electric circuit.
Following the lamp, the NG lamp also lights up to inform the operator that the vehicle height has fallen below the allowable dimension and is below the lower limit dimension.

As described above, the operator only needs to visually check the display state of the display device from a distance while adjusting the screw, and if the two lamps are both lit, the vehicle height is lower than the allowable size. If both the 2 lamps are off, the vehicle height is higher than the allowable dimension. If only the OK lamp is on and the NG lamp is off, the vehicle height is within the allowable dimension tolerance. This can be easily and surely known, and one person can adjust the vehicle height based on this information.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. 1 to 4, a vehicle height adjusting device 10 for a vehicle according to the present invention includes a vehicle loading platform 11, a conductive floor 12, a vehicle height detecting rod 13, and a display device 14.

The vehicle loading platform 11 is a vehicle 1 for adjusting the vehicle height.
5 wheels 16 for loading, each wheel 1
4 vehicle loading stands 1 so that 6 can be loaded independently
1 is independently arranged on a floor 18 made of concrete.

Each vehicle loading platform 11 is a platform made of metal so as to have a strength sufficient to withstand the weight of the vehicle 15, and a base 19 fixed to the floor 18 extends in the left-right direction of the vehicle 15. A rail 19a is provided, a movable table 20 is slidably arranged on the rail 19a, and springs (not shown) for returning the movable table 20 to a central position are provided on the left and right sides of the movable table 20. ing.

Then, each wheel 16 is mounted on each movable table 20.
When the vehicle 15 is loaded with the vehicle and the center distance of the wheels 16 changes, the moving base 20 moves left and right on the rail 19a to absorb the change amount of the center distance.

The conductive floor 12 is a vehicle height detection rod 1 which will be described later.
3 is for operating the display device 14 by closing the electric circuit of the display device 14 by making contact with 3, and is made of an electric conductor, for example, a metal such as copper,
It is arranged on an electrical insulator 22 provided on the floor 18 immediately below the lower arm bracket 21 to form a part of the floor 18 and also a part of an electric detection circuit.

The vehicle height detection rod 13 is mounted on the lower arm bracket 21 to form a part of an electric detection circuit, and has a length adjustable according to the vehicle height. 3, an electrical insulator 23, a ring-shaped conductor 24, and a rod member 25 (25A, 25B) are included.

The electrical insulator 23 is for electrically insulating the vehicle height detection rod 13 from the lower arm bracket 21 when the vehicle height detection rod 13 is attached to the lower arm bracket 21, and is made of a non-conductive material, for example. It is a cylindrical member made of resin, and two grooves 23a are provided on the outer periphery with a space therebetween.
Bushing 2 in which a thumbscrew 26 is inserted
A hole 23b for fitting 8 is provided.

Then, the thumbscrew 26 is inserted through a bush 28 which is rotatably fitted in the hole 23b, and is fixed to the lower arm bracket 21 by screwing.

The ring-shaped conductor 24 is a rod member 25.
A and 25B are attached to the electric insulator 23, and are rings made of a metal such as copper, which is an electric conductor, and are fitted in the grooves 23a of the electric insulator 23, respectively. An L-shaped plate 17 made of an electric conductor such as copper is welded to the ring-shaped conductor 24 by brazing or welding, and the L-shaped plate 17 is attached to the rod members 25A, 25.
A mounting hole (not shown) for fixing B with a screw is provided.

The rod members 25A and 25B are rods made of an electric conductor so that their lengths can be changed according to the vehicle height and form a part of the electric detection circuit. Connection rods 29, 30 having male screws 29a, 30a formed respectively at the ends are fixed, and the connection rod 29 at the upper end is inserted into a mounting hole of the L-shaped plate 17 and fixed to the L-shaped plate 17 by a nut 31. .

Detecting needles 32A and 32B are screwed to the male screw 30a of the connecting rod 30 at the lower end and fixed by a nut 27. The detecting needles 32A and 32B are fixed.
To change the length of the rod members 25A and 25B,
It is configured so that it can respond to changes in vehicle height.

Then, a pair of rod members 25A, 25B set to the upper limit dimension and the lower limit dimension of the vehicle height allowable dimension for one set of vehicle height detection rods 13 are attached to the electric insulator 23. There is.

The display device 14 is for displaying whether or not the detection needles 32A, 32B are in contact with the conductive floor 12, and in FIG. 4, the rod members 25A, 25B are shown.
An electric circuit to which the indicator lamps 33 are electrically connected is housed in the case 35, and the indicator lamps 33 are electrically connected to the rod member 25A set to the upper limit of the vehicle height allowable dimension. The OK lamp 33a and the NG lamp 33b electrically connected to the rod member 25B set to the lower limit of the vehicle height allowable dimension form a pair to form each wheel 16
4 sets of display lamps 33 are provided.

Then, the conductive floor 12 and the detection needle 32 (32A,
32B), copper rod 28, L-shaped plate 17, ring-shaped conductor 2
4, the display lamp 3 connected to the closed electric circuit by the detection needle 32 coming into contact with the conductive floor 12 among the plurality of electric circuits composed of the electric cord 34 and the display lamp 33.
3 is turned on.

The indicator lamp 33 causes the detection needle 32 to be detected by light.
The operator is informed that the contact with the conductive floor 12 has been made. However, the notifying means is not limited to light, and if it can be clearly recognized such as character display, pictorial display and sound, The same effect is exhibited regardless of the type.

For example, by using a liquid crystal display device as the display means, the vehicle height in which both detection needles 32A and 32B set to the upper and lower limit dimensions of the vehicle height are separated from the conductive floor 12 is higher than the allowable dimension. Is too high, it means "N"
Fails when "H" is displayed together with "G" indicating that the vehicle height is higher than the upper limit, and when the vehicle height in which both detection needles 32A and 32B are both in contact with the conductive floor 12 is lower than the allowable dimension. Is displayed together with “NG” indicating that the vehicle height is lower than the lower limit dimension, and the vehicle height in which only the detection needle 32A of the rod member 25A set to the upper limit dimension is in contact with the conductive floor 12 is displayed. If it is within the allowable dimension, an “OK” display indicating acceptance may be displayed to make it easier for the operator to understand.

According to the method of the present invention, the vehicle height detecting rod 1 as a conductor is set so that its length is set to a vehicle height dimension of a part of the vehicle body of the vehicle 15 and is hung from the part of the vehicle body.
3 is a method for adjusting the vehicle height of the vehicle 15 by electrically forming a closed circuit when the vehicle 3 contacts the conductive floor 12 and operating the display device 14 to display.

The present invention is configured as described above,
The operation will be described below. 1 and 5, as a preparatory work for the vehicle height adjusting device 10 of the vehicle, the nut 27 of the vehicle height detecting rod 13 is loosened, the connecting rod 30 is rotated, and the length L ₃ of the rod member 25A from the reference position P is adjusted. The upper limit of the allowable dimension and the length L ₁ of the rod member 25B from the reference position A are adjusted to the lower limit of the allowable dimension, and each electric cord 34 of the display device 14 is connected to a predetermined position.

Since the allowable dimensional tolerance of the vehicle height is ± 1 mm, for example, the difference in length between L ₁ and L ₃ is set to be 2 mm.

The vehicle 15 on which the vehicle height should be adjusted is mounted on the vehicle loading platform 1.
When it is loaded on the vehicle 1, the moving base 20 moves left and right on the rail 19a corresponding to the center distance of the wheels 16 of the vehicle 15 and automatically adjusts to the center distance of the wheels 16.

When the bush 28 of the vehicle height detecting rod 13 is attached to the lower arm bracket 21 with the thumbscrew 26, the electric insulator 23 rotatably fitted to the bush 28 is rotated by the weight of the rod members 25A and 25B. Then, it hangs vertically to the conductive floor 12.

Here, when the vehicle height is higher than the allowable dimension, both the detection needles 32A and 32B are at a high position apart from the conductive floor 12, and therefore the conductive floor 12, the detection needle 32, the copper rod 28 and the L-shape. Plate 17, ring-shaped conductor 24, electric cord 3
Since the electric circuit constituted by 4 and the display lamp 33 is opened between the conductive floor 12 and the detection needle 32, both the OK lamp 33a and the NG lamp 33b are turned off.

When the vehicle height is lowered through the torsion bar 38 by adjusting the adjusting nut 36, the rod member 2 will eventually be released.
The detection needle 32A of 5A contacts the conductive floor 12, the electric circuit is closed, the OK lamp 33a is turned on, and the operator is informed that the vehicle height is within the upper limit tolerance.

When the operator further adjusts the adjusting nut 36 to lower the vehicle height, the detecting needle 32B of the rod member 25B comes into contact with the conductive floor 12 to close the electric circuit, and the NG lamp 33b.
Also lights up to inform the operator that the vehicle height has fallen below the lower limit tolerance.

When the vehicle height at which both the OK lamp 33a and the NG lamp 33b are lit is lower than the lower limit tolerance and the vehicle height is increased by adjusting the adjusting nut 36, first, the detection needle 32B of the rod member 25B is moved. The electric circuit is opened apart from the conductive floor 12, the NG lamp 33b is turned off, and when the vehicle height is further increased, the detection needle 32A of the rod member 25A is separated from the conductive floor 12 to open the electric circuit, and the OK lamp 33a is also turned off. Then, it is displayed that the vehicle height is higher than the allowable upper limit tolerance.

As described above, even if the worker is far from the display device 14, the operator can move from the position where the OK lamp 33a is turned on or off to the upper limit position of the vehicle height, and the NG lamp 33.
Since the lower limit dimension position of the vehicle height can be known from the position where b is turned on or off, the vehicle height is allowed only by adjusting the vehicle height so that the OK lamp 33a is turned on and the NG lamp 33b is turned off. Can be adjusted to within tolerance.

Further, as described above, the operator can know the moment when the vehicle height becomes the upper limit dimension and the lower limit dimension of the permissible dimension by adjustment, so that not only the vehicle height is adjusted to be within the permissible dimension tolerance. By adjusting to an intermediate position between the upper limit dimension and the lower limit dimension, it is possible to adjust near the center of the tolerance, and it is possible to adjust the vehicle height with extremely high accuracy.

When the vehicle height is adjusted, the lower arm bracket 21
Since the center of the wheel 16 changes, the center distance of the wheel 16 changes by that amount.
Since the vehicle 15 is moved upward to absorb the variation, the wheels 16 can be always kept in the same state as when the vehicle is running with the vehicle 15 being stopped, and the vehicle height can be adjusted with high accuracy without error.

[0047]

According to the present invention, a conductive vehicle height detecting rod is hung down and attached to a part of the vehicle body for adjusting the vehicle height as described above, and the tip of the vehicle height detecting rod is placed on the conductive floor. When a contact is made, an electrically closed circuit is formed so that, for example, a lamp of a display device is turned on for display, so that there is an effect that one person can perform vehicle height adjustment work while looking at the display device. As a result, there is an effect that the working time of the vehicle height adjusting work can be significantly shortened.

Further, a vehicle height detecting rod whose length is set to the upper limit and the lower limit of the allowable vehicle height is mounted on a part of the vehicle body for adjusting the vehicle height, and the tip of the vehicle height detecting rod is mounted. Since the display device indicates that the vehicle has touched the conductive floor, it is possible to determine whether the vehicle height is immediately within the allowable dimension, or whether the vehicle height is larger or smaller than the allowable dimension by just looking at the display device while the worker is working. There is an effect that it can be confirmed without leaving the work place, and as a result, the adjustment work can be facilitated and the vehicle height can be adjusted with high accuracy.

Further, since the respective wheels are loaded on the vehicle loading platform which is independently configured to be reciprocally movable in the width direction of the vehicle, the vehicle height adjustment work is performed. Changes in the distance can be absorbed by the vehicle loading platform automatically reciprocating, and as a result, it is possible to eliminate the work of swinging the vehicle each time the vehicle height is adjusted to eliminate adjustment errors, thus improving work efficiency. There is an effect that can improve.

Further, the vehicle height detecting rod is constructed by attaching the rod member whose length can be changed by adjusting the position of the detecting needle to the electric insulator which can be screwed to the lower arm bracket of the vehicle. By changing the length of the rod member according to the vehicle height that differs for each vehicle type, it is possible to easily support multiple vehicle heights, and even if there is a vehicle type change, there is an effect that a single vehicle height adjustment device can handle Further, there is an effect that the vehicle height adjusting device can be easily attached to and detached from the lower arm bracket by a simple work of screwing by hand.

[Brief description of drawings]

1 to 5 relate to an embodiment of the present invention, and FIG. 1 is a partial vertical cross-sectional side view showing a state in which a vehicle height adjusting device is mounted on a vehicle.

FIG. 2 is a partial vertical cross-sectional front view showing a state in which a vehicle height adjusting device is mounted on a vehicle.

FIG. 3 is an enlarged partial vertical sectional view of a vehicle height detection rod.

FIG. 4 is a front view of a display device.

FIG. 5 is an enlarged side view showing the operation of the electric circuit of the vehicle height adjusting device of the vehicle and the vehicle height adjusting device.

FIG. 6 is a partial perspective view showing a vehicle height adjusting method according to a conventional example.

[Explanation of symbols]

 10 vehicle height adjusting device 11 vehicle loading platform 12 conductive floor 13 vehicle height detection rod 14 which is an example of a conductor 14 display device 15 vehicle 16 wheels 21 lower arm bracket 23 which is an example of a part of a vehicle body electric insulator 24 ring-shaped conductor 25A Rod member 25B Rod member 26 Screw 32A Detection needle 32B Detection needle

Claims (3)

[Claims] 1. A closed circuit is electrically established when a conductor is set so that its length is set to a vehicle height of a part of a vehicle body and is hung from a part of the vehicle body when the conductor contacts a conductive floor. A vehicle height adjusting method for a vehicle, wherein the vehicle height is adjusted by forming the display device and operating the display device to display. 2. A vehicle loading platform configured to be loaded with respective wheels of a vehicle so as to be reciprocally movable in the left-right direction of the vehicle and absorbing a variation in a center-to-center distance in a width direction of the wheels, and each of the vehicles. A plurality of conductive floors arranged below a part of the vehicle body corresponding to the wheels, and a permissible dimension of a height of a part of the vehicle body mounted so as to hang from a part of each of the vehicle bodies A plurality of vehicle height detection rods each of which is set to the upper limit dimension and the lower limit dimension of the vehicle, and the vehicle height detection rods are provided for each vehicle height detection rod and are electrically connected when the vehicle height detection rods contact the conductive floor. A vehicle height adjusting device for a vehicle, comprising: a display device that forms a closed circuit to indicate that the vehicle height detecting rod contacts the conductive floor. 3. An electric insulator which can be fixed to a lower arm bracket of a vehicle by screws, a ring-shaped conductor attached to the electric insulator, and one end electrically connected to the ring-shaped conductor. And a rod member provided with a detection needle that is adjustable in position in the longitudinal direction.