JPH0333206B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a vehicle body measurement device in which a base and a weight are suspended from a vehicle body, and the weight shifts from the Z-axis direction of the vehicle body due to the inclination of the vehicle body, causing the position of the relative portion to change. This relates to items that do not cause errors in measurement even if they shift (the present invention does not cover errors that are so precise that they do not affect the measurement of the car body.In addition, the inclination of the car body is within the range that can be considered in normal use. ).

An example of a conventional vehicle body measuring instrument in which a base and a weight are suspended from a vehicle body will be described with reference to FIGS. 1 to 4.

X-axis direction of vehicle body 1 (referring to the longitudinal direction of vehicle body 1)
A vertical beam 2 made of a square pipe extending from the side is provided. The Y-axis direction of the vehicle body 1 has a box-shaped sliding part 3 at the lower center for passing the vertical beam 2, and can slide along the vertical beam 2 while maintaining a right angle to the vertical beam 2. (This refers to the left-right direction of the vehicle body 1.) Three horizontal beams 4 made of square pipes are provided that extend in the left-right direction of the vehicle body 1. A screw hole penetrating vertically is formed in the left and right center of each horizontal bar 4, and a screw handle 6 for stopping the sliding of the horizontal bar 4 by applying pressure to the vertical bar 2 is provided in the screw hole. These vertical bars 2 and horizontal bars 4 constitute a base 7.

One box-shaped moving body 8 that can penetrate the horizontal bar 4 and slide along the horizontal bar 4 is placed on the horizontal bar 4 closest to the front.
Two pieces are provided on each of the other horizontal bars 4. Square holes 10 are provided on the upper and lower surfaces of the movable body 8 of the second and third horizontal bars 4 from the front for passing the hanging body 9 in the Z-axis direction of the vehicle body 1 (referring to the vertical direction of the vehicle body 1). are provided for each.

Each movable body 8 is provided with a plate 14 for pressing the horizontal beam 4 or the hanging body 9 to stop it from sliding, and a screw handle 15 for applying pressure to the plate 14 (see FIG. 3).

The hanging body 9 is composed of a square pipe with a scale (not shown) at the upper end, which has a locking part 11 that can be locked to a vehicle body reference point, and passes through the square hole 10 of the movable body 8 to attach to the vehicle body 1. It extends in the Z-axis direction of the vehicle body 1 and can slide in the Z-axis direction of the vehicle body 1 while maintaining a right angle to the horizontal beam 4.

The locking part 11 is constructed by fixing two leaf springs 12 having a collar at the upper end to the front and rear sides of the upper part of the hanging body 9 back to back. Four hanging bodies 9 with this configuration are provided, and the hanging bodies 9 are connected to four locations that are not in a straight line on the base 7 by the movable bodies 8 of the second and third horizontal bars 4 from the front, and are connected to four locations that are not in a straight line on the base 7. 15, it is fixed at right angles to the base 7.

The top surface of the movable body 8 of the horizontal bar 4 closest to the front has an upper end at a position corresponding to the center position of the square hole 10 on the top surface of the movable body 8 of the second and third horizontal bars 4 from the front. A conical weight, which is the loose reference part 13, is fixed. The movable body 8 is fixed to the horizontal beam by tightening the screw handle 15.

A conical shape having at its upper end a locking tool 16 composed of a rectangular plate-shaped magnet having a protrusion 5 on the upper side that fits into the hole 48 of the vehicle body reference point to be locked, and whose tip is a relative part 17. A weight 19 is provided at the lower end, and a vertically extending weight 19 made of a thin flexible rope 18 is provided between them (see FIG. 4). The locking device 16 is provided with holes 20 and 21 that penetrate vertically and have approximately the same diameter as the rope 18 at the center and a position slightly off the center, and the rope 18 passes through the center hole 20 from bottom to top. Pass through one hole 21 from top to bottom. As a result, holes 20, 2
1 and the rope 18, the rope 18 is held in the locking device 16, and the rope 18 is held in the holes 20, 2.
1, the length of the weight 19 is adjusted.

Next, an example of how to use this vehicle body measurement device will be explained.

The vehicle body 1 is set in an accurate horizontal state as described in the description of the disadvantages of this vehicle body measuring device, which will be described later.

Two suitable sets (i.e. four locations) located symmetrically on the undamaged part of the car body 1
A vehicle body reference point is selected, and a vehicle body reference point located at a damaged part of the vehicle body 1 and whose position is wrapped around the vehicle body reference point is selected. While sliding each horizontal beam 4 and each movable body 8, the second and third points from the front are placed in the same positions as the four normally located vehicle body reference points described in the plan view of the commercially available vehicle body dimension drawing. th horizontal bar 4
The four moving bodies 8 are placed in a vehicle body measuring machine. The movable body 8 having the reference portion 13 of the horizontal beam 4 closest to the front is placed in the vehicle body measuring machine so as to have the same dimensions as the normal arrangement of the vehicle body reference point, which is rotated at the above-mentioned position shown in the same plan view.

The lengths of the four corresponding hanging bodies 9 are set to be the same as the heights from the four normally located vehicle body reference points to the vehicle body reference line shown in the side view of the vehicle body dimension drawing. The length of the corresponding weight 19 is set to be the same as the height from the normal position of the vehicle body reference point around which the above-mentioned position is shown in the same side view to the vehicle body reference line.

By holding the base 7 by hand and delicately adjusting the position and angle of the base 7 integrally with the hanging body 9 back and forth, left and right, and up and down, the locking portion 11 of each hanging body 9 can be adjusted to the required position. Position and lock each vehicle body reference point at a certain position,
The base 7 is suspended from the vehicle body 1. The locking tool 16 is locked to the vehicle body reference point at the above-mentioned position, and the weight 19 is suspended from the vehicle body 1.

At this time, the reference part 13 moves the normal position of the vehicle body reference point, which has been rotated, to the vehicle body by a required distance.
It represents the position moved downward in the Z-axis direction, and the weight is 19
The relative portion 17 represents a position obtained by moving the current position of the vehicle body reference point downward in the Z-axis direction of the vehicle body 1 by the required distance. By looking at which direction and how much the position of the relative part 17 deviates with respect to the reference part 13, it is possible to determine in which direction and by how much the position of the vehicle body reference point has deviated from its normal position. can be known.

Conventional vehicle body measuring machines in which a base and a weight are suspended from the vehicle body have the following drawbacks.

Generally speaking, the floor surface of a workshop such as an auto body repair shop may appear to be a horizontal surface at first glance, but it is not an exact horizontal surface, and is usually somewhat slanted or uneven. When a car body is placed on the floor of such a workshop, although it appears to be in a horizontal state at first glance, it is actually in an inclined state. The weight suspended from such a tilted vehicle body shifts from the Z-axis direction of the vehicle body, and accordingly, the position of the relative portion shifts in front and rear, left and right, or a combination of these directions. For this reason, if measurements are continued as is, errors will occur due to the deviations, making it useless as a vehicle body measuring instrument that requires precision in millimeters.

That is, in order to carry out measurements, it is necessary to set the vehicle body accurately in a horizontal state, which is extremely troublesome and takes a long time. An example of this work is as follows (see Figure 1).

Vehicle body fixing stand 22 whose height can be freely adjusted
Four wheels are prepared, the vehicle body 1 is lifted to a height such that the four wheels of the vehicle body 1 are lifted, and the vehicle body 1 is supported on the four vehicle body fixing stands 22. Measure the inclination of the vehicle body 1 in the X-axis direction while applying a level along the lower surface 23 of the rocker panel of the vehicle body 1 parallel to the vehicle body reference line, and then apply the level across the lower surface 23 of the left and right rocker panels. The inclination of the vehicle body 1 in the Y-axis direction is measured while moving. Based on these measurement results, the heights of the four vehicle body fixing stands 22 are delicately adjusted. By repeating these horizontal measurements and adjusting the height of each vehicle body fixing stand 22 many times, the vehicle body 1 will gradually become accurately horizontal (however, the lower surface 23 of the rocker panel of the vehicle body 1
is located at the lowest point of the vehicle body 1, so
They often get hit and damaged when passing over bumps between the sidewalk and the road or roads with large bumps. In this case, it is difficult to use the lower surface 23 of the rocker panel as a reference, making it extremely difficult to accurately set the vehicle body 1 in a horizontal state. ).

The present invention is a vehicle body measurement device in which a base and a weight are suspended from the vehicle body, and the weight is shifted from the Z-axis direction of the vehicle body due to the inclination of the vehicle body, and the position of the relative portion is changed from front to back, left to right, or a combination thereof. The object of the present invention is to provide a device that does not cause errors in measurement even if it deviates in the specified direction.

A first embodiment of the present invention will be explained based on FIGS. 5 to 8. (The present invention can perform measurements even when the vehicle body 1 is placed on the ground, but it is easy to understand the function. Therefore, in FIG. 5, the vehicle body 1 is placed on a vehicle body fixing stand 22 and shown in an extremely tilted state.)

A base 7 is constituted by vertical beams 2 and horizontal beams 4, similar to the conventional vehicle body measuring machine in which the base and weight are suspended from the vehicle body. Each horizontal bar 4 consists of a horizontal bar 24 closer to the center and a horizontal bar 25 closer to the left and right sides.
The horizontal bar 4 is configured to be expandable and retractable by sliding left and right inside the horizontal bar 24 located near the center. At both ends of each horizontal bar 24 closer to the center, there are horizontal bars 25 closer to the left and right.
A screw handle 26 is provided to stop the sliding.

The hanging body 9 is composed of a square pipe having a locking part 11 at the upper end. The locking portion 11 is composed of a rectangular plate 28 having a projection 27 at the center of the lower side that fits into the hole 48 of the vehicle body reference point to be locked (see FIGS. 7a and 7b).

2nd and 3rd horizontal bars from the front on each side
A square outer frame 29 is provided at the outer end of 5.

The angle of each hanging body 9 with respect to the base 7 can be changed back and forth by the weight of the base 7 according to the inclination angle of the vehicle body 1 on the outer frame 29 of the horizontal crosspiece 25 directly below the locking part 11 of each hanging body 9 and on each left and right side. , angle variable parts 30 and 31 are provided to change the angle in the left and right directions and in a combination of these directions (the angle of the hanging body 9 in the front and back direction with respect to the base 7 is indicated by the arc arrow 32 in the fifth direction).
As shown in the figure. ). The angle variable part 30 directly below the locking part 11 of the hanging body 9 has V-shaped hooks 33 and 34 provided at the center of the upper end of the square pipe and the lower end of the locking part 11, respectively.
(see Figure 7b).

The angle variable portion 31 of the horizontal crosspiece 25 on the left and right side is a square inner frame large enough to fit comfortably inside the outer frame 29.
35 is fixed between the front and rear inner walls of the outer frame 29 with a shaft 46 so as to be rotatable up and down, and the inner frame 36 is fixed to the inner frame 35
It is constructed by fixing a shaft 47 between the left and right inner walls of the body so as to be rotatable up and down (see FIG. 8). The hanging body 9 is passed through the inner frame 36, and the screw handle 37 of the inner frame 36 is tightened to hold the hanging body 9 at an arbitrary position. The base 7 and the hanging body 9 are connected by this angle variable part 31.

A square plate 38 is provided at the outer end of the left and right horizontal bars 25 closest to the front, and is placed at a position corresponding to the center position of the inner frame 36 of the second and third left and right horizontal bars 25 from the front. A dot-like mark that is the reference portion 13 is attached.

A weight 19 similar to the conventional vehicle body measuring machine in which the base and weight are suspended from the vehicle body is provided.

Next, to explain how to use it, as in the case of the conventional car body measuring machine in which the base and the weight are suspended from the car body, the hanging body 9 and the weight 19 are Then, the arrangement and length of the reference portion 13 and the like are set as required, and these are suspended from the vehicle body 1. At this time, even if the vehicle body 1 is tilted, there is no need to set it in an accurate horizontal state, which is different from a conventional vehicle body measuring machine in which a base and a weight are suspended from the vehicle body.

At this time, even if the weight 19 shifts from the Z-axis direction of the vehicle body 1 due to the inclination of the vehicle body 1, and the position of the relative part 17 shifts, the position of the reference part 13 will be in the same direction as the shift, and the position of the reference part 13 will be in the same direction as the shift. automatically shifted by the same distance. In other words, the reference part 13 represents the position where the normal position of the vehicle body reference point, which is twisted, is shifted downward in the vertical direction by a required distance, and the relative part 17 of the weight 19 represents the position where the vehicle body reference point is currently located. It represents a position shifted downward in the vertical direction by the required distance. Then, the relative part 17 with respect to the reference part 13
By looking at how far and in which direction the position of the vehicle body reference point has deviated, it is possible to know in which direction and by how much the position of the vehicle body reference point has deviated from its normal position.

The weight 19 in the first embodiment is a vertically elongated cylindrical weight 39 instead of a conical weight, as shown in FIG. 9, and a line is drawn at an appropriate height on its circumference. The relative portion 17 may be provided by pulling it. In this case, a hole 40 having a diameter slightly larger than the diameter of the cylindrical weight 39 is made in the plate 38 provided on the horizontal crosspiece 25 on the left and right side, and the hole 40 is used as the reference part 13. Further, the structure for changing the length of the weight 19 may not be provided.

To explain how to use it, a cylindrical weight 39
By determining which side of the inner circumferential surface of the hole 40 of the reference part 13 the vehicle body reference point is in contact with, it is possible to know in which direction, front, back, left, or right, the vehicle body reference point is turned.
Further, based on the height difference between the relative portion 17 and the reference portion 13, it is possible to know how much the vehicle body reference point is vertically twisted.

The angle variable section 31 in the first embodiment may have the following configuration (see FIG. 10).

The horizontal bar 4 is composed of a round pipe, and one ring-shaped movable body 8 that slides along the horizontal bar 4 is provided on each side of the horizontal bar 4, and a screw handle 15 for stopping the sliding is provided on the movable body 8. . On the upper part of the moving body 8, two ribs 41 with a hole in the center are installed in parallel in the left-right direction, and the lower end of the hanging body 9 made of a square pipe is fixed thereto, so that the tilt of the vehicle body can be controlled. An angle variable portion 31' is configured to change the angle of each suspended body 9 relative to the base to the left or right using the weight of the base depending on the angle. Also,
By passing the horizontal beam 4 through bearings (not shown) fitted into both ends of a short round pipe 42 fixed to the sliding part 3 that slides along the vertical beam 2, the horizontal beam 4 can be adjusted according to the inclination angle of the vehicle body. An angle variable part 3 that changes the angle of each hanging body 9 with respect to the base back and forth depending on the weight of the base.
1'' is constructed on the side (around) a location at the same height as the connection location between each hanging body 9 and the base.

Next, a second embodiment of the present invention is shown in FIGS. 11 and 12.
This will be explained with reference to the figures.

A rectangular plate-shaped iron base 7 extending in the X-axis and Y-axis directions of the vehicle body is provided. The base 7 is provided with a scale (not shown) consisting of a large number of vertical lines and horizontal lines.

The hanging body 9 has a locking portion 11 that can be locked to a vehicle body reference point.
It is composed of a pipe having a magnet 43 at its upper end and a magnet 43 at its lower end. The pipe consists of a thick pipe 44 threaded on the inner circumferential surface and a thin pipe 45 threaded on the outer circumferential surface (see FIG. 12). Make a part of the thin pipe 45 flat and mark it there (not shown).
By providing a thin pipe in the thick pipe 44 and rotating the thin pipe, the hanging body 9 can be expanded and contracted.

The locking part 11 of the hanging body 9 has a hemispherical collar 49 at the upper end.
A plate-shaped stopper 50 is configured by fixing two leaf springs 12 having a diameter back to back to the upper part of the suspension body 9, and is sandwiched between the two leaf springs 12 to prevent the gap from narrowing. establish. This locking part 11 changes the angle of each hanging body 9 with respect to the base 7 in the hole of the vehicle body reference point by the weight of the base 7 in accordance with the inclination angle of the vehicle body, forward and backward, left and right, and a combination of these directions. This is the angle variable section 30 that allows the angle to be adjusted.

Also, an angle variable part 3 that changes the angle of each hanging body 9 with respect to the base 7 in front and back, left and right, and a combination thereof using the weight of the base 7 according to the inclination angle of the vehicle body.
1 is constructed by providing hooks 51 and 52 facing each other at the lower end of the thick pipe 44 and the upper end of the magnet 43, respectively, and hooking these hooks to each other. Four hanging bodies 9 having such a configuration are provided and connected to four locations on the base 7 that are not in a straight line using magnets 43.

The base 7 has a front-back rail 5 extending in the front-back direction.
3, and a left-right laser oscillator 55 that slides along it and oscillates a laser 54 in the left-right direction. Similarly, a left-right rail 56 extending in the left-right direction is provided, and a front-back laser oscillator 58 that slides along the rail and oscillates a laser 57 in the front-back direction is provided. The reference section 13 is constituted by these lasers 54 and 57.

The weight 19 has a locking tool 16 at its upper end, which is a rectangular plate with a protrusion on the lower side that fits into the hole of the vehicle body reference point to which the weight is to be locked, and a transparent plate with a relative part 17 at an arbitrary location. It is composed of a pipe having a flat plate 59 at its lower end. The weight 19 has a structure similar to that of the hanging body 9 and is expandable and retractable. Hooks 60 and 6 are provided at the lower end of the locking tool 16 and the upper end of the pipe, respectively.
1 facing each other and hook them.

Next, an example of how to use the second embodiment will be explained. A magnet 43 and a laser oscillator 55 at the lower end of each hanging body 9,
58 on the base 7, the suspension body 9 and the reference part 13 are arranged in the vehicle body measuring machine according to the vehicle body dimension drawing, and the suspension body 9 and the weight 19 are set to the required length. In this state, the base 7 and the weight 19 are suspended from the vehicle body as in the first embodiment.

At this time, the laser 5 constituting the reference section 13
By looking at which direction and how much the position of the relative part 17 has shifted with respect to 4 and 57, it is possible to know in which direction and by how much the vehicle body reference point has deviated from its normal position. .

Hooks 51, 52, 60 in the second embodiment,
61 may be replaced with a commercially available universal joint. Further, the angle variable portion 30 that changes the angle of each hanging body 9 with respect to the base 7 in front and back, left and right, and a combination thereof using the weight of the base 7 according to the inclination angle of the vehicle body is similar to the second embodiment. Alternatively, it may be configured in the locking portion 11 itself, or by providing a universal joint or the like below the locking portion 11.

To give an example of the configuration of the angle variable part other than that described in the first embodiment or the second embodiment, a hanging body is constructed with a flexible string, chain, rope, belt, etc., and the part where it is connected to the base. The hanging body directly above the body and the hanging body directly below the points connected to each locking part adjust the angle of each hanging body relative to the base by the weight of the base according to the inclination angle of the vehicle body. It may also be configured as an angle variable section that changes the angle in the direction of the angle.

Further, the angle variable part may be of any type as long as it changes the angle of each suspended body with respect to the base in front and back, left and right, or a combination of these directions using the weight of the base according to the inclination angle of the vehicle body. Good too.

As shown in each of the above embodiments, the angle variable part is usually provided on the side of the connection point between each hanging body and the base, or on the side of a place at the same height, and on the side of each locking part. be.

In the present invention, the base can be normally suspended from the vehicle body by connecting the suspension bodies to three or more locations that are not in a straight line with the base, so the number of suspension bodies may be three or more.

Even if the suspension body and the weight are bent in a dogleg shape, it is sufficient that they eventually extend in the vertical direction. Similarly, the base may be configured to extend in the X-axis and Y-axis directions of the vehicle body.

Depending on how the suspension is arranged, the base may lose its balance, so in that case, a weight may be provided at an appropriate location on the base.

The number of weights, horizontal bars, reference parts, relative parts, movable bodies, etc. may be increased as necessary.

The above-mentioned base, hanging body, weight, etc. may be provided with scales, or the work may be performed by applying a commercially available tape measure or the like without providing a scale. Further, the reference portion or the relative portion may be provided each time by applying a tape measure or the like to the base or weight one by one.

Some car body repair companies only handle specific car models, and in that case, they manufacture suspension bodies, horizontal beams, weights, etc. in the required arrangement and length to suit the car model, and then use them as is. You may also do this. In this case, there is no need for a structure that allows the hanging body or the reference part to be moved back and forth or left and right on the base, or a structure that allows the length of the hanging body and the weight to be adjusted.

The vehicle body measurement device of the present invention, in which a base and a weight are suspended from the vehicle body, changes the angle of each suspended body with respect to the base in front and back, left and right, and a combination of these directions using the weight of the base depending on the inclination angle of the vehicle body. Since the angle variable part is provided, even if the weight shifts from the Z-axis direction of the car body due to the tilt of the car body, and the position of the relative part shifts in front and back, left and right, or a combination of these directions, the position of the reference part remains the same. It will automatically shift in the same direction and by the same distance as that shift. Therefore, there is an outstanding effect that no error occurs in measurement even if the relative portions are misaligned. Therefore, there is an advantage that there is no need to set the vehicle body accurately and horizontally, which is very troublesome and takes a long time.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional car body measurement device with a base and weight hanging from the car body, and Fig. 2 is a perspective view of the same car body measurement device with the car body omitted. Figure 3 is an enlarged side view of the connection point between the base and hanging body in Figure 1, and Figure 4 is an enlarged view of the state in which the weight of Figure 2 is locked in the hole in the vehicle body reference point. FIG. 5 is a side view showing the first embodiment of the present invention suspended from a tilted vehicle body, and FIG. 6 is a perspective view of the same embodiment with the vehicle body omitted. Figure 7a is an enlarged plan view showing the state in which the locking part shown in Figure 6 is locked in the hole of the vehicle body reference point;
Fig. 7b is a side view showing the locking part and the angle variable part immediately below the locking part cut along line A-A in Fig. 7a;
Figure 8 is a partially cutaway plan view showing an enlarged view of the variable angle section and hanging body provided on the horizontal beam in Figure 6, and Figure 9 is an enlarged view of other aspects of the weight and reference part in Figure 6. 10 is a perspective view showing one aspect of the angle variable part, FIG. 11 is a perspective view of a second embodiment of the present invention, and FIG. 12 is an enlarged view of the hanging body in FIG. 11. A side view as shown. 1 is the vehicle body, 2 is the vertical frame, 4 is the horizontal frame, 7 is the base, 9
is a hanging body, 11 is a locking part, 13 is a reference part, 16 is a locking tool, 17 is a relative part, 19 is a weight, 30, 31,
31', 31'' are angle variable parts.

Claims (1)

[Scope of Claims] 1. A suspension that extends in the Z-axis direction of the vehicle body and has locking portions at three or more locations that are not in a straight line on a base that extends in the X-axis and Y-axis directions of the vehicle body and is on one plane. Three or more bodies are connected, each hanging body has a length corresponding to the height from each body reference point to the body reference line, a reference part is provided on the base, and a locking device is attached to the vertical line. In a car body measuring machine in which a base and a weight are suspended from the car body, the weight extending in the direction has a relative part, and the weight of the base is used to adjust the angle of each suspended body with respect to the base back and forth, depending on the inclination angle of the car body. A vehicle body measurement device in which a base and a weight are suspended from a vehicle body, characterized by comprising a variable angle section that changes the angle in left and right directions and in a combination thereof. 2. The base according to claim 1, in which the angle variable part is provided on the side of the connection point between each hanging body and the base, or on the side of a place at the same height as that, and on the side of each locking part; A vehicle body measurement device in which a weight is suspended from the vehicle body. 3. A vehicle body on which the base and weight are suspended from the vehicle body according to claim 1, wherein the angle variable part is a string-like member, a rope-like member, a belt-like member, a universal joint, or a hanger that is hung from each other. Measuring machine.