JPS63165704A - Method of measuring reference point in sheet metal repair of automobile - Google Patents

Abstract

PURPOSE:To enable the simple but accurate measurement of various spots of a body, by a method wherein a recess provided in the central position of the end face of an axle shaft is used as a reference point. CONSTITUTION:First a fitting member 16 is fitted to a clip bolt 27 whereby a wheel is fitted to the end part of an axle shaft 14. Next, the member 16 is made to support a supporting metal fitting 9 through the intermediary of a center bolt 15 which is positioned so that the fore end thereof is stopped by an indent C provided in the central point of the axle shaft 14. Subsequently a bracket 11a provided in this supporting metal fitting 9 is made to bear a longitudinal bar with a length measuring scale 11, and thereby this longitudinal bar is disposed horizontally on the opposite sides of a car body. Moreover, a lateral bar is laid over and disposed between the two longitudinal bars, and an indication rod is set movably on each of the longitudinal bars and the lateral bar. Then, each indication rod is moved to a measuring reference point such as a water draining hole or the like provided in the car body or at the back thereof, and the position of the point is read for measurement by the length measuring scale provided on the longitudinal bar or on the lateral bar.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to sheet metal repairs to restore the body of an automobile that has been deformed due to a collision or the like to its original condition. The present invention relates to a measurement method for measuring dimensions between reference points.

[Prior Art] Conventionally, when restoring and repairing a car that has been deformed due to a collision, in order to measure whether it has been repaired to its original dimensions, a measuring device is used each time a tension is applied between multiple reference points on the bottom of the car body. The dimensions between each reference point were measured using a tape measure, and the surface of the body was also measured using a measuring tape.

Therefore, in particular when measuring the bottom surface, the applicant
As No. 9-152927, he devised and applied for a measuring device consisting of a vertical rod with a length measurement scale displayed on one surface, and a plurality of horizontal rods each having two reference point display rods arranged orthogonally to each other. . This measuring device is used every time the dimensions are measured when repairing the car body.

This method is carried out by crawling into the underside of the vehicle body, moving each reference point display rondo to the reference point, reading the length measurement scale of the horizontal rod at that position, and measuring the difference from the reference dimension.
This is intended to improve work efficiency.

[Problems to be Solved by the Invention] However, when measuring using the measuring device related to the above-mentioned application, it is difficult to determine which reference point to use for measurement, and the measuring device The size itself is approximately the same as the size of the car body to be repaired, and each time it is used, it needs to have a large space around the car body in order to fit under the car body. However, although the efficiency of measurement itself can be improved compared to conventional methods, there are various difficulties in the measurement method and handling of the measuring device itself.

The purpose of the present invention is to set a reference point at the center of the axle end face and measure the distance from there, so that measurements can be easily made at various locations, and without requiring a large space for handling the measuring device. The object of the present invention is to provide a measuring method that can easily measure dimensions accurately.

[Structure of the Invention: In other words, the present invention has a mounting member fixed to a clip bolt that attaches each wheel to the end of an axle, and a tip of the mounting member hits a recess provided at the center point of the axle. By supporting the support metal fittings through the center bolts positioned so that the vertical rods are horizontally positioned on both sides of the vehicle body, the vertical rods with measuring scales are supported on the brackets provided on each of these support metal fittings. Further, a horizontal rod is placed between both vertical rods, and an indicator rod is movably placed on each of the vertical rods and the horizontal rod, so that each indicator rod is provided on the body of the vehicle body or the back surface of the vehicle body. It is measured by moving the measuring point to a measurement reference point such as a drain hole, and reading the position with a length measurement scale provided on the vertical or horizontal rod.

[Function] Utilizing the recess provided at the center of the end face of the axle,
With the concave portion as a reference point, the vertical rods are supported by brackets of support fittings attached to the front and rear adjacent wheels on both sides of the vehicle, and the horizontal rods are supported by being passed between the left and right vertical rods. The instrument is constructed by attaching a plurality of indicator rods to each vertical or horizontal rod, and the starting point of the length measurement scale provided on the surface of the vertical and horizontal rods is aligned with the measurement reference point, and the indicator rod is used to measure the other side. By moving it to a reference point and measuring the distance at that stop position, you can easily measure the difference from the correct distance.

[In the example diagram, 1 is a vertical rod made of square pipe material with a measuring scale displayed by pasting a measuring tape on the surface, and is mainly used along both sides of the vehicle body. An indicator rod 2 is attached slidably on the upper surface of the vertical rod 1. This indicator rod 2 is a support that can be moved up and down along the rod 2a by standing a rod 2a of a required length upright on a branch-shaped base 3 that straddles the vertical rod 1, and loosening a butterfly screw 4 on the rod 2a. body 5
A short rod 6, which is perpendicular to the rod 2a, is supported on the support body 5 so as to be able to slide forward and backward. Further, a cone body 7 is fixed to the tip of the short rod 6. The short rods 6 are also supported at appropriate positions on the support body 5 by butterfly screws 4.

8 is a horizontal rod made of square pipe material with a measuring scale displayed on the surface by pasting a measuring tape on the surface, similar to vertical rod 1, and is used by being stretched between vertical rods 1 and 1 on the side of the car body. It is something.

Reference numeral 2' denotes an indicator rod that slideably moves on the upper surface of the horizontal rod 8. A rod 2'a of a required length is stood upright on a branch-shaped base 3' that straddles the horizontal rod 8, and the rod 2'a is A cone 7' is fixed to the upper end of 'a. First, the vertical rod 1 to which the indicator rod 2 is slidably attached is attached to the front and rear axles 10, 10 on both sides of the vehicle body via the support metal fittings 9, 9, and is supported horizontally. The vertical rod 1 is supported by a hook-shaped bracket lla provided at the lower end of the vertical rod part 11, and is fixed by tightening the side surface with a butterfly screw 4. A plurality of through holes 12 are formed in the vertical rod portion 11, and a screw hole 13 is provided in communication with the side surface of each of these through holes 12.

Usually, the end face of the axle 14 is provided with a recess C indicating its center, and the hole 15 is inserted into any of the through holes 12 so that its tip abuts against the recess C at the center of the end face of the axle 14. It is a center bolt with a conical center point 15 at the tip.
A is provided.

Reference numeral 16 designates a mounting member for fixing the center bolt 15 to the end surface of the axle 14 to which the wheel 10 is mounted via spacers 17 and 17, in order to support the center bolt 15. Book support rod 1ea, 1(
The three square timbers 1 (ib, 16c, 16b) are placed on the ia as a path so that they can be moved up and down, and each square timber L6b, 16
The position is fixed by screwing and tightening the tightening bolt 19 through the female screw hole 18 that abuts the support rods 1ea, 1(ia) in the horizontal direction of c+lGb.

The center bolt 15 is screwed through the female screw hole 20 in the center of the square bar 16c in the middle, and the square bar 16 at the top and bottom positions is inserted.
A through hole 21.21 is opened in the center of b and 16b.

Each of the spacers 17 and 17 has a cylinder 24 protruding from the rear end of the shaft rod 22 of a required length, and has a cylinder 24 having an outer diameter that can be inserted into the through hole 21 and has a female threaded hole 23 inside. A female screw 25 is bored at the front end. 26 is a tightening bolt screwed into the female screw hole 23.

On the other hand, each wheel 10 of the vehicle body is connected to four clip bolts 27 protruding from the end surface of the axle 14 through holes 2 provided in the axle plate 28.
9 is inserted through it and fixed by tightening a nut 30.

Then, the nuts 30 of one set of opposing clip bolts 27 (the ones located in the upper and lower positions in FIG.
Screw them together and place spacers 17. on the top and bottom as shown in Figure 6.
17 is installed and fixed. A through hole 21.21 provided at the center of the square pieces 16b, 16b is inserted into the cylinder 24.24 protruding from the rear end of the spacer 17.17.

The mounting member 16 is fixed by screwing the tightening bolt 26.26 into the female screw hole 23.23 provided in the cylinder 24.24 from the rear surface of the square members 16b, 16b. On the other hand, a center bolt 15 inserted through an arbitrary through hole 12 of the support fitting 9 is screwed into the female threaded hole 20 of the square bar 16c at the center of the mounting member 1G, and a center point 14a provided at the tip of the center bolt 15 is screwed. By colliding with the center concave C at the tip of the axle 14, and fixing the center bolt 15 by screwing the butterfly screw 31 into the screw hole 13 provided on the side surface of the vertical rod portion 11 of the support metal fitting 9, as shown in FIG. As shown, the vertical rod 1 can be maintained horizontally on the outer surface of the vehicle body.

Further, the scale on the vertical rod 1 is graduated with the central recess of the axle 14 as a reference point.

As shown in Figure 5, the vehicle body has front and rear axles of 10°10
Screw jacks 32, 32 are arranged between them, clamping tools 33, 33 that can be tightened are fixed to the upper parts of these screw jacks 32, and the lower edge of the vehicle body is clamped with this clamping tool 33, 33. In this state, the screw shaft of each screw jack 32 is raised, and the entire vehicle body is lifted and supported in a horizontal state. Then, the rear part of the vehicle body is supported and fixed to the tower E via the Cheno D.

In this way, when repairing a concave part of the body by pulling it with the car body fixed horizontally, move the indicator rod 2 placed on the vertical rod 1 attached to the side of the car body along the vertical rod 1. The cone 7 of the short rod 6 attached to the top of the short rod 6 is slid onto the body surface and repaired while checking the condition of the dent.The length to the tip of the short rod 6 is determined by the distance from the reference point. Since the normal protrusion dimension of the body surface is known, adjust to that dimension. In this way, the work is carried out while checking the degree of correction.

Further, FIG. 7 shows an example of use in which length measurement is performed by passing the horizontal rods 8 between the vertical rods 1.1 arranged on both sides of the vehicle body, particularly when repairing deformation in the longitudinal direction of the vehicle body. That is, the vertical rod 1 attached to the front and rear wheels 10, 10 on the left and right sides of the vehicle body.
, 1, respectively, but a plurality of horizontal bars 8 may be supported across the vehicle width direction. At this time, the measuring tape attached to the surface of the side rod 8 aligns the starting point of the length measurement scale with the center of the vehicle width. Then, using the 0 of the tape measure on the vertical rod 1 as a reference, slide the horizontal rod 8 back and forth and hit the cone 7' at the tip of the indicator rod 2 placed on the horizontal rod 8 to a reference point such as a drainage hole on the back side of the car body. This allows corrections to be made while measuring the amount of deformation.

Furthermore, what is shown in FIGS. 3 and 4 is an embodiment of the mounting member 34 that can be used for a vehicle having five clip bolts 27 for mounting the wheel plate 28, which is more than the four in the above embodiment. In this embodiment, the support rod is divided into upper and lower halves, and a square member 34a provided with a through hole 21 through which the cylinder 24 of the spacer 17 is inserted is slidably inserted into the upper support rod 35.35. A square member 34b is fixed to the lower end, and a square member 34b is fixed to the upper end of the lower support rod 36, 36 symmetrically, and the same square member 34a as described above is slidably inserted under the lower support rod 36,36.

Reference numeral 37 designates a shaft cylinder member in which a circular flange plate 39 is fixed concentrically to one end of a cylindrical body 38, and a female threaded hole 40 into which the center bolt 15 is screwed is provided in the center along the axial direction. Hole pitch is 36 concentrically on plate 39
Ten through holes 41 are opened at equal intervals of .degree. Also,
A cylindrical body 3 is provided at the center portion of the square members 34b, 34b whose surfaces face each other.
8 are respectively provided, and a plurality of screw holes 43 are provided concentrically to coincide with the through holes 41. If the two square pieces 34b, 34b and the shaft cylinder member 37 are connected together with the fixing bolt 44, the mounting member 34 will be bent at a constant angle as a whole, and the axle 14 with five clip bolts 27 Even if there is a screw, it can be installed smoothly, and the support fitting 9 and the vertical rod 1 can be installed without any problem.

[Effects of the Invention] As described above, in the method for measuring a measurement reference point in automobile sheet metal repair according to the present invention, a recess provided at the center of an axle is used to define the reference point.

A plurality of indicator rods are attached to a vertical rod with a measuring scale that is supported via a mounting member fixed to a clip bolt that fixes the wheel plate of each axle, and to a horizontal rod that is suspended horizontally on the vertical rod. The measurement is performed by moving the measuring point under the measurement reference point, such as a water drain hole provided on the back of the vehicle body, and reading the position with the length measurement scale provided on the vertical or horizontal rod, so it is difficult to set the reference point. It is extremely easy to use, and only requires the use of compact instruments, allowing measurements to be made easily and accurately in both the longitudinal and width directions of the vehicle, regardless of the location and without occupying space. Moreover, it has the advantage that the instruments used can be stored in an extremely compact form, and it is convenient to move.

[Brief explanation of the drawing]

The figures relate to embodiments of the present invention. Figure 1 is an exploded perspective view of the measuring instrument used in the present invention, Figure 2 is a perspective view of the vertical rod, horizontal rod, and indicator rod, and Figure 3 is the installation. FIG. 4 is a front view showing another embodiment of the member, FIG. 4 is a side view showing the same part in cross section, FIG. 5 is a side view showing the state of use, and FIG. 6 is an enlarged sectional view of the same main part. FIG. 7 is a front view showing the state of use. ■・・・Vertical rod, 2.2'・・・Indicator rod, 8・
...Horizontal rod, 9...Supporting metal fittings, 10...Axle,
11a...Bracket, 14...Axle, 15...
...Center bolt, 16, 34...Mounting member,
27...Clip bolt, C...recess.

Claims (1)

[Claims] A mounting member is fixed to a clip bolt that attaches each wheel to the end of the axle, and a center bolt is positioned on the mounting member so that its tip is stopped by a recess provided at the center point of the axle. In addition to supporting the support metal fittings, vertical rods with measuring scales are supported on the brackets provided on each of these support metal fittings, so that the vertical rods are arranged horizontally on both sides of the vehicle body, and furthermore, a horizontal rod is placed between both vertical rods. Place it across the
An indicator rod is movably placed on each of the vertical and horizontal bars, and each indicator rod is moved to a measurement reference point such as a water drain hole provided on the body or the back of the vehicle body, and the position is set on the vertical bar. Or, a method for measuring a measurement reference point in automobile sheet metal repair, characterized in that reading is performed using a length measurement scale provided on a side rod.