JPS6242328Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for measuring torsion when correcting torsion of a frame caused by an automobile accident or the like.

The prior art will be explained with reference to FIGS. 1 and 2. In the prior art, a so-called frame gauge 4 is used in which a center rod 3 having a weight 2 is inserted into the longitudinal center of a rod-shaped gauge body 1. As shown in FIG. 2, these frame gauges 4 are hung at intervals along the front-rear direction of the frame 5 of the automobile. When suspending the frame gauge 5, the frame gauge 5 is suspended at symmetrical positions on the frame 5 by means of hanging means 6 having the same length.
Therefore, when the frame 5 is twisted,
As shown in FIG. 2, the positions of the center rods 4 may deviate from each other, or the gauge bodies 1 may not be parallel to each other.

In such prior art, the amount of deviation of each gauge body 1 must be visually measured to adjust the torsion of the frame 5, making it impossible to accurately grasp the degree of torsion.

The present invention aims to solve the above-mentioned technical problems and provide a device that can accurately and easily measure frame torsion.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a plan view of an embodiment of the present invention.
In Figure 3, frame 1 whose torsion is to be measured
1 is indicated by a two-dot chain line, and a case will be described in which the front portion 11a of the frame 11 is deformed due to a car accident. When measuring the torsion at the front portion 11a of the frame 11, the frame 1
A reference measuring means 12 is suspended from a portion 11b corresponding to a portion to be used as a reference, for example, a vehicle interior portion. Further, a laser light source 14 is installed behind the frame 11 (to the right in FIG. 3). The verticality and horizontality of the reference portion 11b are measured by the laser light source 14 and the reference measuring means 12, and the frame 11 is fixed according to these measured values.
Next, a measuring plate 15 is suspended from the frame 11 at the rear of the reference measuring means 12 along the front-rear direction indicated by an arrow 13, and two measurement plates 15 are suspended from the frame 11 at the front part 11a of the frame 11 at intervals along the front-rear direction 13. measurement plates 16, 17 are suspended. These measuring plates 1
5 to 17 are irradiated with laser light from the laser light source 14, the twist in the front portion 11a of the frame 11 is measured.

4 is a front view of the reference measuring means 12, FIG. 5 is a plan view thereof, and FIG. 6 is a right side view of FIG. 5. The reference measuring means 12 includes a support plate 18
and support plates 1 at intervals along the front-rear direction 13.
A plurality of measuring plates 1 (three shown) hanging from 8
9, 20, and 21. The support plate 18 is formed in a substantially cross shape, and includes a vertical portion 22 extending along the front-rear direction 13 and a horizontal portion 23 extending perpendicularly to the center of the vertical portion 22 . A spirit level 24 is fixed on the horizontal portion 23.

The vertical portion 22 has an intersection position with the horizontal portion 23,
Holes are formed in a straight line along the front-rear direction 13 at positions spaced from the intersection position forward and backward.
The upper end of each measuring plate 19-21 is connected to the holding members 25-2.
7, and these clamping members 2
Screw holes corresponding to the holes 5 to 27 are formed.

Each of the measuring plates 19 to 21 is made of a transparent material, such as an acrylic plate, and a vertical line 28 extending vertically is displayed on the surface of the center portion in the width direction. These measurement plates 19 to 21 are connected to each holding member 25 to 27.
The screw holes are made to correspond to the respective holes of the vertical portion 22, and the screw members 29 to 31 are screwed into the screw holes, so that the vertical portion 22 is suspended from the support plate 18. Moreover, each measuring plate 1
9 to 20 are fixed to the support plate 18 so as to form an angle α of, for example, 10 degrees with the front-rear direction 13.

Connecting holes 3 are provided at both ends of the horizontal portion 23 of the support plate 18.
2,33 are formed. These connecting holes 32, 3
3 are connected to hanging means 34, respectively. The hanging means 34 includes a hook member 36 whose one end is connected to the connection holes 32 and 33 and has a locking portion 35 at the other end, and an engagement hole in which the locking portion 35 is engaged in the longitudinal direction. It consists of space ribbons 37 provided at intervals along the length. The upper end of the space ribbon 37 is engaged with the frame 11. By using such a hanging means 34, the frame 11
The reference measuring means 12 can be suspended from the frame 11 with the distances from the horizontal portion 23 to both ends of the horizontal portion 23 being equal. Note that instead of the hanging means 34, a rope of equal length or the like is used to hang the reference measuring means 1.
2 may be suspended.

FIG. 7 is a front view of the measurement plate 15. Measuring plate 1
Reference numeral 5 is made of a transparent material such as an acrylic plate, and is elongated in the lateral direction perpendicular to the front-rear direction 13.
A pair of mutually parallel vertical lines 38a and 38b are displayed on the surface of the central portion in the longitudinal direction of the measuring plate 15,
A transmission hole 39 is located between those vertical lines 38a and 38b.
is formed. On both ends of the measuring plate 15, scales 40 and 41 are provided in the vertical direction in correspondence with each other, and the portions where the scales 40 and 41 are provided have low transparency. Connecting holes 42 and 43 are formed in the upper portions of both ends of the measuring plate 15, respectively, and hanging means similar to the above-mentioned hanging means 34 are connected to these connecting holes 42 and 43.

Regarding the other measuring plates 17 and 18, the measuring plate 15
It is configured in the same way as . Note that the transmission hole 39 does not need to be formed in the measurement plate 18 located at the frontmost position along the front-rear direction 13 .

The laser light source 14 is configured to be able to switchably irradiate a linear laser beam and a laser beam that spreads out in one plane.

In measuring the torsion of the frame 11, the reference measuring means 12 is suspended from mutually corresponding positions on both sides of the reference portion 11b of the frame 11 via the hanging means 34. At this time, use the spirit level 24 to make the support plate 18 horizontal.
Therefore, the frame 11 is fixed so that the reference portion 11b of the frame 11 is kept horizontal. Further, a laser light source 14 is arranged at the rear of the frame 11 along the front-rear direction 13, and a straight line of laser light is emitted from the laser light source 14. The fixed position of the frame 11 is corrected so that this laser beam passes on the vertical line 28 of each measuring plate 19 to 21 of the reference position measuring means 12. Thereby, the center position of the reference portion 11b in the width direction is aligned with the laser beam.

When measuring the reference portion 11b, each of the measurement plates 19 to 21 forms an angle α with respect to the front-rear direction 13, so that diffuse reflection of the laser beam is prevented, and therefore measurement in a bright place is possible. Work becomes easier.

After the measurement and correction work of the reference portion 11b is completed, the measurement plates 15 to 17 are hung at mutually corresponding positions on both sides of the frame 11 with intervals in front and behind the reference measurement means 12. . Next, a linear laser beam is irradiated from the laser light source 14, and the deviation of the center line of the frame 11 is determined by checking whether the laser beam passes through the transmission hole 39 between the vertical lines 38a and 38b of each measurement plate 15. is measured. Therefore, by modifying the frame 11 so that the laser beam passes through the transmission hole 39, the horizontal distortion can be corrected.

After measuring the deviation of the center line, the laser light source 14 irradiates a laser beam that spreads toward the end in a horizontal plane. Then, the torsion in the vertical direction can be measured based on the position where the laser beam passes through the scales 40 and 41 at both ends of each of the measurement plates 15 to 17. Furthermore, since the portions with the scales 40 and 41 have low transparency, the laser beam irradiation position can be reliably recognized even in a bright place. After such measurement work,
The laser beam hits the scales 40, 41 of each measuring plate 15 to 17.
By correcting the frame 11 so that the frame 11 passes through mutually corresponding positions, the vertical twist of the frame 11 is corrected.

In another embodiment of the present invention, the level 24 in the reference measuring means 12 is omitted, and each measuring plate 19 to 21 is
A horizontal line perpendicular to the vertical line 28 may be displayed. By doing so, the horizontality of the reference measuring means 12 and the reference portion 11b can be measured by making the laser beam spread out in the horizontal plane as described above.

FIG. 8 is a plan view of another embodiment of the present invention,
FIG. 9 is a front view of FIG. 8. In this embodiment, the laser light source 14 is integrally supported by the frame 11 via support means 50. Support means 50
is integrally fixed to the disk wheels 51 and 52 of the rear wheels in the embodiment shown in FIGS. 1 to 7, which are integral with the frame 11, and the laser light source 14 is supported by this support means 50. be done.

The support means 50 includes a pair of attachment members 53 and 54 that are integrally attached to the disk wheels 51 and 52.
and from the mounting members 53 and 54 in the front-rear direction 1
A pair of support members 55, 56 extending along 3;
A connecting member 57 that connects the ends of both support members 55 and 56, and a connecting member 57 in the front-rear direction 13 at a position spaced apart along the axis of the connecting member 57 in the center thereof.
The connecting member 57 includes a pair of receiving members 58 and 59 extending in one direction along the axis (left side in FIG. 8), and a receiving member 60 extending in the other direction along the front-rear direction 13 at a central portion along the axis of the connecting member 57.

The mounting members 53 and 54 are disk foils 51 and 5.
2 by bolts 61 and 62. The support members 55, 56 are cylindrical, and the mounting members 53, 54 have support portions 63, 64, respectively, through which one end of each support member 55, 56 is inserted. One end of the supporting members 55, 56 is inserted into the supporting portions 63, 64, and the screw members 65, 56 are inserted into the supporting parts 63, 64.
66. Each other end of the support members 55 and 56 has a cylindrical portion 6 perpendicular to the axis thereof.
7, 68 are provided, and these cylindrical portions 6
Both ends of the cylindrical connecting member 57 are inserted through the holes 7 and 68. Moreover, both ends of the connecting member 57 are fixed by screw members 70 and 71 screwed into the cylindrical parts 67 and 68, respectively.

The laser light source 14 is placed on a support plate 69, and the support plate 69 includes receiving members 58, 59, 60.
Adjustment screws 72, 73, and 74, each having an axis extending vertically, are screwed into corresponding to each free end portion. Further, each free end portion of the receiving members 58 to 60 is provided with a receiving seat 7 for receiving the lower end portion of the adjustment screws 72 to 74.
5 are formed respectively. Therefore, by screwing the adjustment screws 72 to 74 forward and backward, the vertical position of the support plate 69, that is, the laser light source 1 can be adjusted.
The vertical position of 4 can be freely adjusted.

Using such a support means 50, the laser light source 1
4, even if the center line of the frame 11 shifts due to modification work on the frame 11, the laser light source 14 will be displaced integrally with the frame 11, so the laser light source 14 will be aligned with the center line. There is no need to do any work to adjust it.

As described above, according to the present invention, the position where the laser light emitted from the laser light source hits the measurement plate can be clearly determined, and therefore the torsion of the frame can be easily and reliably measured.

[Brief explanation of the drawing]

FIG. 1 is a front view of a frame gauge 4 of the prior art, FIG. 2 is a simplified perspective view showing the frame gauge 4 of FIG. 1 attached to a frame 5, and FIG. 3 is an embodiment of the present invention. 4 is a front view of the reference measuring means 12, FIG. 5 is a plan view of FIG. 4, FIG. 6 is a right side view of FIG. 5, and FIG. 7 is a front view of the measuring plate 15. FIG. 8 is a plan view of another embodiment of the present invention, and FIG. 9 is a front view of FIG. 8. 11...Frame, 12...Reference measurement means, 1
3...Anteroposterior direction, 14...Laser light source, 15-1
7, 19-21... Measuring plate, 50... Supporting means.

Claims (1)

[Claims for Utility Model Registration] (1) A scale or line that is suspended from the widthwise center of the reference part of the automobile frame, allowing light to pass through, and displaying a scale or line for measuring verticality or horizontality. and a reference measuring means having a plurality of measuring plates forming an angle with the longitudinal direction at positions slightly spaced apart from each other along the longitudinal direction of the frame; a plurality of measurement plates each hanging from the center of the frame in the width direction at a position with a gap between the two, each displaying a scale or line for measuring verticality and horizontality while allowing light to pass through the frame; A torsion measuring device for an automobile frame, comprising: a laser light source that emits laser light in a straight line along the front-rear direction or in a shape that spreads toward the end within one plane. (2) A vertical line is displayed at the center of each measurement plate in the width direction, and scales are displayed at mutually corresponding positions in the vertical direction at both ends of the measurement plate; The torsion measuring device for an automobile frame according to claim 1, characterized in that the transparency is suppressed to a low level compared to that of the vehicle frame. (3) The automobile frame torsion measuring device according to claim 1 or 2, wherein the laser light source is supported by support means integrally attached to the frame. .