JPH0228498B2 - JIKOSHANOHANKINSHURIHOHO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sheet metal repair method in which an external force such as a tensile force is applied to the body of an automobile that has been deformed due to a collision or the like to restore the body to its original state.

[Prior art and its problems] When repairing a car that has been deformed due to a collision, it is generally done by fixing the car body immovably on the ground and then placing a clamp on the deformed part and pulling it. In order to measure whether the damaged car has been restored to its original dimensions during repair work, it is necessary to apply a tensile measure between multiple reference points on the underfloor of the car and measure the dimensions between each reference point. This was extremely time consuming and inefficient.

[Object and Structure of the Invention] Therefore, the present invention aims to provide a sheet metal repair method that allows the degree of restoration of an accident vehicle to be easily detected during repair. The machine has a plurality of reference point indicators disposed on a machine frame consisting of vertical and horizontal rods so as to be movable vertically and horizontally, and at least one of the reference point indicators has a flexible bar installed vertically. The respective reference point indicators are set in advance at reference positions according to the frame chart determined for each vehicle type of the accident vehicle, and the measuring device is placed under the floor of the accident vehicle, and the floor corresponding to the deformed part of the accident vehicle is placed. The flexible bar is bent at a reference position on the lower surface and its tips are engaged, and as the accident vehicle is corrected with a pulling tool, the flexible bar returns to straight, thereby restoring the accident vehicle. It is characterized by being able to detect the state.

[Example] First, the measuring device used in the present invention will be explained according to FIG. Two horizontal rods 3 orthogonal to the vertical rod 1 are arranged on the rod 1 so as to be movable along the vertical rod 1. That is, the receiving plate 4 is placed on the lower surface of the center of the horizontal rod 3.
is fixed, and two rollers 5 are rotatably supported on the receiving plate 4 so as to sandwich the vertical rod 1 from both sides,
Therefore, the horizontal rod 3 can freely move along the vertical rod 1 while maintaining a state perpendicular to the vertical rod 1. Similar to the surface of the vertical rod 1, a length measurement scale 6 is displayed on the surface of the horizontal rod 3. Reference numeral 7 denotes a reference point display body that is vertically expandable and retractable, and a saddle-shaped base 8 is disposed on the upper surface of the horizontal rod 3 so as to be movable along the horizontal rod 3, and a round pipe 9 is attached to the base 8. A small diameter pipe 10 is loosely fitted into the round pipe 9, a rod 11 is loosely fitted into the small diameter pipe 10, and a cone 1 is attached to the upper end of the rod 11.
2 is fixed. In addition, 13 is the horizontal rod 3 of the base 8.
14 is a thumbscrew provided at the end of the round pipe 9 to stop the expansion and contraction of the small diameter pipe 10; 15 is a thumbscrew provided at the end of the small diameter pipe 10 to stop the rod 11 from expanding and contracting. be. An extension rod 16 is provided at the tip of the horizontal rod 3 so as to be extendable and retractable, and a reference point indicator 7' is also provided at the tip of the extension rod 16. That is, a small-diameter pipe 17 is arranged at the tip of the extension rod 16 so that it can be adjusted up and down by loosening a thumbscrew 18, and a rod 19 is loosely fitted into the small-diameter pipe 17 so as to be extendable and retractable.
A cone 20 is fixed to the upper end of 9. 21 is a thumbscrew provided at the end of the small diameter pipe 17 to stop the rod 19 from expanding and contracting. Note that a length measurement scale 22 is also displayed on the surface of the extension rod 16.

On the other hand, numeral 31 is a square pipe-shaped horizontal support rod that supports the vertical rod 1.
Secure both ends of the Pulleys 32 are provided at both ends of the support horizontal rod 31, and a screw shaft 3 for the supporting leg is provided.
3 is vertically supported and fixed to the upper end of the screw shaft 33.
moves up and down so that its lower end can come into contact with the floor.

However, the measuring device thus constructed is first aligned with each reference point indicator 7, 7' at the measurement reference position of the vehicle according to a frame chart determined for each type of vehicle. To do this, move the horizontal rod 3 in accordance with the measurement scale 2, move the base 8 in accordance with the length measurement scale 6 on the horizontal rod 3, and then move the extension rod 16.
is expanded or contracted in accordance with the length measurement scale 22.

Of the respective reference point indicators 7, 7', at least one reference point indicator corresponding to the deformed part of the accident car is replaced with a coil spring or the like as shown in FIG. A flexible bar 34 is arranged. And each reference point display body 7, 7'
The height of the measuring device is adjusted to match the floor height of the vehicle being repaired, and the measuring device is inserted under the floor of the accident vehicle by rolling the pulley 32. Then, position each reference point indicator 7, 7' directly below the reference position on the underfloor of the accident vehicle (usually the reference position is the drain hole or bolt head on the underside of the car body), and then press the steering wheel. Operate 35 to attach the supporting leg screw shaft 3.
By lowering the pulley 32 and bringing its lower end into contact with the floor surface, the pulley 32 floats above the floor surface to keep the measuring device horizontal and to restrict its free movement. On the other hand, in an accident vehicle that has been deformed due to a collision, the reference position of the underfloor surface of the deformed part is shifted, but in the present invention, the drainage hole 50 of the underfloor surface corresponding to the reference position where the shift occurred is made as shown in FIG. As shown in FIG. 4, the flexible rod 34 is bent to engage a portion of the cone 12 attached to its tip. Then, the deformed part is gripped by the clamp 47 and the chain 49 is strongly pulled with a well-known pulling tool 48 to correct the deformed part.As the deformation is corrected in this way, the flexible bar 34 The restored state of the accident vehicle A can be known from the fact that it returns to a straight position as shown by the chain line in the figure. That is, the flexible rod 34 whose tip is engaged with the reference position on the underfloor surface of the accident vehicle A returns to straight, and the reference position is corrected to the reference position determined by the frame chart. Accident car A
You can know the restoration status of. Therefore, the chain 49 can be pulled with the necessary force while monitoring the restoring state, and the work can be carried out properly.

In this example, a coil spring was used as the flexible bar as shown in Fig. 2, but the present invention does not necessarily require the use of a coil spring in this way, but it is also possible to use other elastically restoring bars. can do.

[Effects of the Invention] Since the restoration state can be easily and reliably monitored one after another, correction work becomes very easy to perform and work efficiency improves.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a perspective view showing an example of a measuring device, Figure 2 is a perspective view of a reference indicator equipped with a flexible bar, Figure 3 is a side view of an accident car undergoing repair work, and Figure 4 is a folded view. It is an explanatory view showing a state where a bent flexible bar returns to a straight state. 1... Vertical rod, 3... Horizontal rod, 7, 7'... Reference point indicator, 34... Flexible bar, 48... Tension tool,
A... Accident car.

Claims (1)

[Claims] 1. The measuring device has a plurality of reference point indicators disposed on a machine frame consisting of vertical and horizontal rods so as to be movable vertically and horizontally, and for at least one of the reference point indicators, a flexible bar is arranged vertically. Each reference point indicator is set in advance at a reference position according to the frame chart determined for each vehicle type of the accident car, and the measuring device is placed under the floor of the accident car, and the measuring device is placed at a position corresponding to the deformed part of the accident car. The flexible bar is bent at a reference position on the underfloor surface of the floor, and its tip is engaged, and as the accident vehicle is corrected with a pulling tool, the flexible bar returns to straight, thereby removing the accident vehicle. A method for repairing sheet metal of an accident vehicle, characterized in that the state of restoration of the vehicle can be detected.