JPH0920214A - Repairing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repairing device for a vehicle of small size and light weight requiring simple and easily carrying and handling and capable of being subjected to much simpler repair work of its body. SOLUTION: With a vehicle repairing device 1 in your hand, a vacuum sucking member 8 is set on a body 13 is such a manner as covering a recess 13a. A seal member 12 is brought in tight contact with the body 13 so as to form a tightly closed space 34. A manual hydraulic pump 27 is operated manually so as to fed work oil to an oil pressure chamber 23 of a hydraulic cylinder 3. Thereby, the pressure in the oil pressure chamber 23 is increased so that both a hydraulic piston 10 and a negative pressure generating piston 6 may move in right direction. Volume inside of the tightly closed space 34 is increased and a negative pressure is generated in the tightly closed space 34. The body 13 is vacuum sucked to the vehicle repairing device 1 side by means of this negative pressure so that a recess 13a part of the body 13 is recovered to its original configuration shown by a two-points dotted line. Thus, the recess 13a is eliminated from the body 13 so that approximately original configuration may be recovered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle repair device for easily repairing a recessed portion of a vehicle body such as an automobile when the body is partially recessed by an external force.

[0002]

2. Description of the Related Art In a vehicle such as an automobile, the body may be dented by an external force applied to the body such as an object hitting the body of the vehicle. When the body is dented in this way, the appearance of the vehicle is impaired. Therefore,
Conventionally, when a dent is formed in the body, the vehicle is transported to a vehicle repair shop, where the body is processed by sheet metal processing etc. so that the dent is eliminated as much as possible, and the body becomes the original shape. Is being repaired. As a result, the body of the vehicle has a good appearance that is almost the same as that before the depression is formed.

When repairing the body,
Conventionally, the working and repair of the body is performed by using a working fluid such as hydraulic pressure or air pressure generated by a power device such as an electric pump.

[0004]

However, in such a conventional vehicle repair apparatus, since the working fluid such as hydraulic pressure and air pressure by the power unit is used, the apparatus is extremely large and heavy. Has become. For this reason,
The conventional vehicle repair device is fixedly installed in the vehicle repair shop and cannot be easily moved. Further, since the device is large, there is a problem that the device is extremely troublesome to handle when performing a repair work.

Further, since the conventional vehicle repair device cannot be moved easily and is troublesome to handle, the repair device cannot be easily operated and the repair work of the body takes a lot of trouble. There is also. In particular, even when the recess of the body is relatively small and can be repaired relatively easily, it takes a lot of time and effort to restore the body.

The present invention has been made in view of the above problems, and an object thereof is to reduce the size and weight of the body so that the repairing work of the body can be performed more easily. To provide a vehicle repair device.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 uses a vacuum suction member applied to a vehicle body, a vacuum suction member supporting the vacuum suction member, and an operation of a vacuum generating piston. It is characterized by comprising a vacuum generating cylinder for generating a negative pressure in the vacuum suction member, a hydraulic cylinder for operating the vacuum generating piston, and a manual hydraulic pump for supplying hydraulic oil to the hydraulic cylinder.

Further, the invention of claim 2 is characterized in that the vacuum generating cylinder and the hydraulic cylinder are arranged on the same axis. Furthermore, the invention of claim 3 is further detachably attached to the vacuum generating piston,
A pulling locking rod having a locking portion and an attachment locking tool temporarily fixed to the vehicle body are provided.

[0009]

According to the present invention having the above-described structure, the bowl-shaped vacuum suction member is held by the vehicle repair device, for example, so as to cover the dent which is the repair portion of the vehicle body. Apply to Manually actuate the hydraulic pump to deliver hydraulic fluid to the hydraulic cylinder. As a result, the hydraulic cylinder operates and the vacuum generating piston operates. By the operation of the vacuum generating piston, the volume of the vacuum suction member in the closed space increases, and a negative pressure is generated in the closed space. This negative pressure causes the body of the vehicle to be vacuum-sucked toward the vehicle repair device, and the recessed portion of the body returns to its original shape. In this way, the body is restored to its original shape without the depression.

In particular, according to the third aspect of the invention, since the recessed portion of the body is also pulled by the pulling force of the pulling locking rod, the recessed portion of the body is more surely restored to the original shape.

In this way, the vehicle repair device is compact and
It is lightweight, easy to carry and handle, saves time and effort for repair work.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a first view of a vehicle repair device according to the present invention.
It is a figure showing an example. As shown in FIG. 1, the vehicle repair apparatus 1 according to the first embodiment includes a negative pressure generating cylinder 2 and a hydraulic cylinder 3. The negative pressure generating cylinder 2 is provided with a housing 5 having an inner hole 4 whose left end is open in the figure, and a negative pressure generating piston 6 is fitted in the inner hole 4 by an O-ring 7 in an airtight and slidable manner. Have been combined. A bowl-shaped vacuum suction member 8 is attached to the left end of the housing 5 by a fastener 9 such as a bolt. In that case, an O-ring 10 seals between the housing 5 and the vacuum suction member 8. This vacuum suction member 8
Is formed of transparent plastic, and a large through hole 11 is formed in the center thereof. Further, a seal member 12 made of rubber or the like is provided at the annular tip of the vacuum suction member 8. The seal member 12 is adapted to be in close contact with the body 13 of the vehicle when the vacuum suction member 8 is applied to the body 13 of the vehicle to ensure airtightness between the vacuum suction member 8 and the body 13.

On the other hand, the hydraulic cylinder 3 is provided with a housing 15 having an inner hole 14, in which the hydraulic piston 1 having a smaller effective pressure receiving area than the negative pressure generating piston 6.
6 is fitted in an O-ring 17 so as to be liquid-tight and slidable. The housing 15 of the hydraulic cylinder 3 is connected by fasteners 18 such as bolts. In that case,
The inner hole 4 of the housing 5 of the negative pressure generating cylinder 2 and the inner hole 14 of the housing 15 of the hydraulic cylinder 3 are arranged on the same axis, and thus the negative pressure generating piston 6
The hydraulic piston 16 is also arranged on the same axis. The negative pressure generating piston 6 and the hydraulic piston 16 are connected to each other by a rod 19 slidably penetrating the housings 5 and 15, so that the pistons 6 and 16 are interlocked with each other. There is. The O-ring 20 holds the space between the rod 19 and the housing 15 in a liquid-tight manner.

The negative pressure generating piston 6 is constantly urged to the left by a spring 21, and the housing 5
The movement to the left is restricted by the stopper 22 provided on the. A hydraulic chamber 23 is defined by a hydraulic piston 16 in the housing 15 of the hydraulic cylinder 3, and the hydraulic chamber 23 is formed in the housing 15.
A hydraulic oil supply / discharge hole 24 for supplying / discharging the hydraulic oil is formed.

Reference numeral 25 is a hole for communicating the rod 19 side of the inner hole 4 with the atmosphere so that the negative pressure piston 6 can smoothly reciprocate, and 26 is a hydraulic piston 16
Is a hole that communicates with the atmosphere on the side opposite to the rod 19 of the inner hole 14 so as to smoothly reciprocate.

Further, the vehicle repair apparatus 1 is provided with a conventionally known manual hydraulic pump 27.
A hydraulic hose 29 is connected to the via a manual control valve 28. At the tip of the hydraulic hose 29, there is provided a connector 30 which is detachably connected to the hydraulic oil supply / discharge hole 24. The manual hydraulic pump 27 also includes a reservoir 31 that stores hydraulic oil. And the operation handle 2
By manually operating 7a, a manual hydraulic pump 27
Is configured to supply the hydraulic oil in the reservoir 31 to the hydraulic hose 29.

The control valve 28 is, for example, as shown in FIG. 1 (b), a check valve 32 for controlling the manual pump 27 from the hydraulic hose 2.
Two positions are provided: a unidirectional flow position I that allows only the flow of the hydraulic oil toward the tip of 9 and a bidirectional flow position II that allows the hydraulic oil to flow in both directions. In that case, a throttle 33 is provided at the bidirectional flow position II so that the hydraulic oil flows in a throttled manner. And the control valve 28
Is normally set to the position I, and is manually set to the position II by operating the operation button 28a.

The operation of the vehicle repair apparatus 1 of the present embodiment thus constructed will be described.

For example, when a recess 13a is formed in the body 13 of an automobile, first, both cylinders 2 of the vehicle repair device 1,
3, the vacuum suction member 8 is applied to the body 13 and pressed against the body 13 so as to cover the recess 13a. At this time, the seal member 12 comes into close contact with the body 13. As a result, a sealed space 34 is formed between the body 13 and the vacuum suction member 8 and the negative pressure generating cylinder 2.

In this state, the operating handle 27a of the manual hydraulic pump 27 is operated to manually operate the manual hydraulic pump 27. In that case, when the repair work is performed by one person, the operating handle 27a is operated by the foot while holding both cylinders 2 and 3. When the repair work is performed by two persons, one person holds both cylinders 2 and 3, and the other person operates the operation handle 27a with hands or feet.

The operating oil in the reservoir 31 of the manual hydraulic pump 27 is operated by operating the operating handle 27a.
It will be sent to 9 people. At this time, since the control valve 28 is set to the position I, the check valve 32 blocks the reverse flow of the hydraulic oil. The hydraulic oil sent to the hydraulic hose 29 is further sent to the hydraulic chamber 23 via the connection tool 30 and the supply / discharge hole 24. As a result, the pressure in the hydraulic chamber 23 rises, and this pressure causes the hydraulic piston 16 to move to the right.

The negative pressure generating piston 6 also moves to the right in conjunction with the movement of the hydraulic piston 16. For this reason, the volume in the closed space 34 increases, and a negative pressure is generated in the closed space 34. Due to this negative pressure, the body 13 is vacuumed toward the vehicle repair device 1 side. At this time,
The reaction force of the vacuum suction force of the vehicle repair device 1 is the vacuum suction member 8
Supported by Further, by operating the manual hydraulic pump 27, the pressure in the hydraulic chamber 23 rises and the negative pressure in the closed space 34 also rises, so that the vacuum suction force of the body 13 also increases. When the negative pressure in the sealed space 34 rises considerably and the vacuum suction force exceeds a predetermined value, the body 1
The concave portion 13a of 3 is vacuumed and deformed to the right as shown by the arrow, and returns to its original shape as shown by the chain double-dashed line. In this way, the body 13 is restored to its original shape without the recess 13a. In that case, since the vacuum suction member 8 is transparent, the body 1 is passed through this vacuum suction member 8.
It is possible to confirm whether or not the dent 13a of 3 has disappeared. When it is confirmed that the recess 13a of the body 13 is removed, the operation of the manual hydraulic pump 27 is stopped and the control valve 2
The operation button 28a of No. 8 is manually operated to set the position to the position II. As a result, the hydraulic oil in the hydraulic chamber 23 of the hydraulic cylinder 3 is discharged toward the reservoir 31. In that case, even if the hydraulic oil has a high pressure, the throttle 33 slowly returns to the reservoir 31. When the hydraulic oil in the hydraulic chamber 23 is discharged and the pressure in the hydraulic chamber 23 becomes atmospheric pressure, the operation button 28a is operated to set the control valve 28 to the position I.

In this way, the vehicle repair apparatus 1 of the present embodiment is provided with the negative pressure generating cylinder 2 and the hydraulic cylinder 3 having a simple structure, and only with the manual hydraulic pump 27. It is simple and can be made small and lightweight. As a result, the vehicle repair device 1 is extremely easy to carry and handle, and the repair work is also simple. Therefore, the recess 13a of the body 13 of the vehicle can be removed easily and in a short time without taking time and effort. Moreover, without using power,
The vehicle can be repaired at low cost.

FIG. 2 is a sectional view showing a second embodiment of the present invention. The same components as those of the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 2, the vehicle repair apparatus 1 according to the second embodiment is provided with a pull locking rod 35 having a locking portion 35a that is bent at a substantially right angle at its tip. And the first
An L-shaped pulling locking rod 35 is screwed onto the negative pressure generating piston 6 of the embodiment and locked by a nut 36 so as to be detachably attached. In addition, the vehicle repair device 1 includes an attachment locking tool 37 that can be engaged with the locking portion 35 a of the pull locking rod 35.

As shown in FIGS. 3 (a) and 3 (b), this attachment locking member 37 includes a mounting portion 37a temporarily fixed to the recess 13a of the vehicle body 13 by welding W and a pull locking rod 35. It has a locking portion 37b with which the locking portion 35a is locked, and is formed in a U shape when viewed from the upper surface. Other configurations are the same as those of the first embodiment.

The operation of the vehicle repair device 1 of the second embodiment thus constructed will be described.

For example, when a recess 13a is formed in the body 13 of an automobile, first, the mounting portion 37a of the mounting locking member 37 is temporarily fixed by welding W at a substantially central position of the recess 13a. This welding W does not cause the attachment locking member 37 to separate from the body 13 when the recess 13a is pulled by the pulling locking rod 35 with a pulling force of a size that can be deformed, as will be described later. After the recess 13a is repaired, the mounting locking member 37 is easily broken by, for example, a lateral shearing force so that the mounting locking member 37 can be easily separated from the body 13.

Next, both cylinders 2 of the vehicle repair device 1,
3, the locking portion 35a of the pulling locking rod 35 is locked to the locking portion 37b of the attachment locking tool 37 as shown in FIG. 2, and the recess 13a is formed in the same manner as in the first embodiment. The vacuum suction member 8 is applied to and pressed against the body 13 so as to cover it. At this time, the seal member 1
2 closely contacts the body 13 to form a closed space 34.

In this state, the manual hydraulic pump 27 is operated in the same manner as in the above-described first embodiment to supply the hydraulic oil to the hydraulic chamber 23, and a pressure is generated in the hydraulic chamber 23. With this pressure, the hydraulic piston 16 and the negative pressure generating piston 6 move to the right, negative pressure is generated in the closed space 34, and the recess 13a of the body 13 is vacuum-sucked to the vehicle repair device 1 side, The pull locking rod 35 pulls the attachment locking tool 13a toward the vehicle repair device 1 side. At this time, the reaction force of the pulling force of the pulling locking rod 35 and the vacuum suction force is
It is supported by the vacuum suction member 8. When the pulling force of the pulling locking rod 35 reaches a predetermined value, the body 13
The depression 13a is deformed to the right as indicated by the arrow, and returns to its original shape as indicated by the chain double-dashed line. At this time, since the recess 13a of the body 13 is also suctioned by the vacuum, the recess 13a of the body 13 can be deformed even if the pulling force of the pull locking rod 35 is not so large. In this way, the body 13 is restored to its original shape without the recess 13a.

When the repair of the recess 13a of the body 13 is completed, the hydraulic oil in the hydraulic chamber 23 is discharged to release the pressure and the engaging portion 35a of the pulling engaging rod 35 is attached as in the first embodiment. The vehicle repair device 1 is removed from the body 13 by disengaging it from the locking portion 37b of the locking tool 37. Finally, the attachment locking member 37 temporarily fixed to the body 13 by the welding W is struck from the lateral direction to apply a predetermined shearing force to break the welded portion, so that the mounting locking member 37 is attached to the body 13.
Separate from Thus, the repair of the body 13 is completed.

In the above-mentioned first and second embodiments,
Although the control valve 28 is provided with the throttle 33, the throttle 33 is not necessarily provided. In addition, the control valve 28
May be a valve of other structure, and if the manual hydraulic pump 27 itself is provided with a backflow mechanism, the control valve 28 is not necessarily provided.

Further, in the above-mentioned second embodiment, the attachment locking device 3
7 is formed in a U shape, but the present invention is not limited to this, and may be formed in, for example, a circular or square annular shape, and has at least the attachment portion 37a and the locking portion 37b. Any shape is acceptable as long as it is

Further, in the above-described second embodiment, the pulling force by the pulling locking rod 35 and the vacuum suction force are used together,
Although the recess 13a of the body 13 is repaired, the recess 13a of the body 13 may be repaired only by the pulling force of the pull locking rod 35. In this case, since the vacuum suction member 8 does not need to form the closed space 34, the vacuum suction member 8 does not need to have a shape that maintains airtightness, and a reaction force support member that can support the reaction force of the pulling force by the pulling locking rod 35. Good. Further, the vacuum generating piston 6 becomes unnecessary, and the pull locking rod 35 may be directly connected to the rod 19.

[0034]

As is apparent from the above description, according to the vehicle repair device of the present invention, the vehicle repair device can be made compact and lightweight. This makes it extremely easy to carry and handle, saves labor for repair work, and simplifies the work. Moreover, the vehicle can be manually and reliably and easily repaired, and since the power is not used, the vehicle can be repaired at low cost.

In particular, according to the third aspect of the invention, since the recessed portion of the body is pulled by the pulling force of the pulling locking rod, the recessed portion of the body can be more reliably returned to its original shape. it can.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a vehicle repair device according to the present invention, (a) is a cross-sectional view thereof, and (b) is a diagram schematically showing an example of a control valve.

FIG. 2 is a sectional view showing a second embodiment of the vehicle repair device according to the present invention.

3A and 3B show an attachment locking tool used in the second embodiment shown in FIG. 2, where FIG. 3A is a front view thereof, and FIG. 3B is a plan view thereof.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle repair device, 2 ... Negative pressure generating cylinder, 3 ... Hydraulic cylinder, 4, 14 ... Inner hole, 5, 15 ... Housing, 6
... Negative pressure generating piston, 7,10,17,20 ... O ring,
8 ... Vacuum suction member, 9, 18 ... Fixing device, 11 ... Through hole,
12 ... Seal member, 13 ... Body, 16 ... Hydraulic piston, 19 ... Rod, 21 ... Spring, 22 ... Stopper, 23 ... Hydraulic chamber, 24 ... Hydraulic oil supply / discharge hole, 25 ... Manual hydraulic pump, 26 ... Control valve, 27 ... Hydraulic hose, 28 ... Connector, 29 ... Reservoir, 30 ... Check valve, 31 ... Throttling, 3
2 ... Sealed space, 33 ... Pulling locking rod, 34 ... Nut, 35 ... Mounting locking tool, 35a ... Mounting part, 35b ... Locking part

Claims (3)

[Claims] 1. A vacuum suction member applied to a vehicle body, a vacuum generation cylinder that supports the vacuum suction member, and that generates a negative pressure in the vacuum suction member by the operation of a vacuum generation piston, and the vacuum generation member. A vehicle repair device comprising a hydraulic cylinder that operates a piston and a manual hydraulic pump that supplies hydraulic oil to the hydraulic cylinder. 2. The vehicle repair apparatus according to claim 1, wherein the vacuum generating cylinder and the hydraulic cylinder are arranged on the same axis. 3. A pull locking rod, which is detachably attached to the vacuum generating piston and has a locking portion,
The vehicle repair device according to claim 1 or 2, further comprising: an attachment locking tool that is temporarily fixed to the vehicle body.