JP3214948U - Indentation repair device for vehicle body - Google Patents

Abstract

An object of the present invention is to make it possible to restore a dent to its original shape by performing a fine adjustment operation while confirming the degree of return to the original shape of the dent from the outside without imposing an extra load on the vehicle body. A guide cylinder 1 is supported upright by a support body 2 that extends around a dent Q of a body P, and a pulling movable pipe 9 that is movable up and down within the guide cylinder 1. The lower end opening of the pulling movable pipe 9 is attached to the inner side of the depression Q range and pulled upward to restore the depression Q to the original shape. The pulling movable pipe 9 can be moved up and down by the rack and pinion mechanism 17 in the guide cylinder 1 and the upper end opening can be connected to the vacuum pump 12. By sucking air by the vacuum pump 12, In addition, a negative pressure is generated, and the traction movable pipe 9 is finely adjusted upward or downward by the rack and pinion mechanism 17. [Selection] Figure 1

Description

  The present invention relates to a dent repairing device for a vehicle body that can easily repair the dent of a vehicle body such as an automobile when the body of the vehicle is dented by an external force.

  In a vehicle such as an automobile, a dent may be generated in the body when an external force is applied to the body such as a vehicle body hitting an obstacle or a falling hail or the like hitting an obstacle. Thus, when a dent arises in a body, the external appearance of a vehicle will be impaired. Therefore, conventionally, when the dent generated in the body is repaired, the dent of the body is returned to the original shape by a vacuum suction force by a negative pressure, for example.

  For example, as disclosed in Patent Document 1, a negative pressure generating cylinder and a hydraulic cylinder are provided, and a bowl-shaped vacuum suction member is applied to the body so as to cover the entire dent that is a repaired portion of the vehicle body. The manual hydraulic pump is manually operated to send hydraulic oil to the hydraulic cylinder, whereby the hydraulic cylinder is operated to operate the vacuum generating piston. Due to the operation of this vacuum generating piston, the volume of the vacuum suction member in the sealed space increases, and the vehicle body is vacuumed by the negative pressure generated in this sealed space, so that the recessed part of the body is restored to its original shape. A vehicle repair device that has been proposed is proposed.

  Further, as disclosed in Patent Document 2, it is composed of a vacuum pad, a vacuum tube, a vacuum pump, and a vacuum regulator having a spherical suction surface. The vacuum pad is applied to the entire recess of the vehicle body. An automobile body repair method using a vacuum technique has been proposed that enables repair even where the curved surface of the vehicle body is different by sucking the entire recess while adjusting the pressure.

  Further, as disclosed in Patent Document 3, a dam is formed by surrounding a recess portion to be repaired with a viscoelastic resin composition, and a space is formed by pressing a plate-like suction cup on the dam. Then, the space is evacuated to repair the dent in the body, and if necessary, the dent is returned to the original shape by applying shock vibration to the suction cup with something like a high frequency vibrator while evacuating the space. Auto body repair methods have been proposed.

Japanese Patent Laid-Open No. 9-20214 JP 2001-347932 A JP 2001-322536 A

  However, in the case of Patent Document 1 and Patent Document 2 described above, since the vacuum suction member or the vacuum pad covers the entire recess, the degree of return to the original shape of the recess cannot be confirmed from the outside. In addition, excessive suction by the vacuum suction member or the vacuum pad may cause an excessive load on the body and may cause the painted surface to peel off.

  Further, when the dent is repaired while adjusting the pressure with a vacuum regulator as in Patent Document 2, the repair work becomes unstable because suction is performed while pressing the vacuum pad by hand.

  In the case of Patent Document 3, a flat suction cup is pressed to make a vacuum state and the body dent is repaired. Therefore, when the vehicle body is a curved surface, it is difficult to repair the dent. Moreover, since the suction cup covers the entire dent, the degree of return to the original shape of the dent cannot be confirmed from the outside, and if the suction cup is subjected to impact vibration with something like a high frequency vibrator, the painted surface of the body May be peeled off.

  Therefore, this device was devised in view of the existing circumstances as described above, and its purpose is to confirm the degree of return to the original shape of the recess from the outside without imposing an extra load on the vehicle body. It is another object of the present invention to provide a vehicle body dent repairing device that can restore a dent to its original shape by performing a fine adjustment operation.

In order to solve the above-described problems, in the present invention, the guide cylinder 1 that is supported upright by the support body 2 that is addressed around the recess Q of the body P, and the traction apparatus that can move up and down within the guide cylinder 1. The movable pipe 9 is provided, and the lower end opening of the movable pulling pipe 9 is attached to the inside of the depression Q range and pulled upward so that the depression Q is restored to the original shape. .
The movable pulling pipe 9 can be moved up and down by a rack and pinion mechanism 17 in the guide cylinder 1 and its upper end opening can be connected to the vacuum pump 12. The lower end opening of the movable pulling pipe 9 is recessed inside the Q range. A negative pressure is generated in the movable pulling pipe 9 by suctioning air with the vacuum pump 12, and the movable pulling pipe 9 is finely adjusted upward or downward by the rack and pinion mechanism 17. It can be.
The rack and pinion mechanism 17 rotates with an operation dial 15 supported along the width direction of the guide cylinder 1 so as to mesh with the rack gear 13 attached along the outer surface length direction of the pulling movable pipe 9. It can consist of the pinion gear 16 provided in the axis | shaft 15a.
At the lower end of the support 2, the suction cup 4 attracted to the body P around the dent Q can be mounted so as to be swingable in the vertical direction and finely adjustable in the height direction.
An annular elastic pad 18 for protecting the body P when being brought into close contact with the recess Q can be detachably attached to the lower end opening of the pulling movable pipe 9.
The lower end opening of the pulling movable pipe 9 can be equipped with an electromagnet 20 that can be in contact with the inside of the dent Q range, and the dent Q is pulled by the magnetic attractive force generated by energizing the electromagnet 20 It can be made to be restored to its original shape.
The electromagnet 20 includes a screw portion 23 to be screwed into a screw groove 21 formed in the lower end opening of the pulling movable pipe 9 and a magnetized portion 22 having a curved surface. Can do.

In the vehicle body dent restoration device according to the present invention configured as described above, the guide tube 1 is supported upright by the support body 2 addressed to the body P around the dent Q.
The pulling movable pipe 9 causes the lower end opening of the pulling movable pipe 9 to be crimped to the recess Q by generating a negative pressure inside the vacuum pump 12.
At this time, the suction cup 4 at the lower end of the support 2 is swingable in the vertical direction and finely adjustable in the height direction, so that the guide cylinder 1 is recessed corresponding to the curved surface of the body P around the Q. Support in the state.
The rack and pinion mechanism 17 pulls the movable pulling pipe 9 upward by rotating the operation dial 15 in a state where the lower end opening is pressed against the concave Q due to negative pressure inside the movable pulling pipe 9, and The support 2 adsorbed to the body P by the suction cup functions as a reaction force against the traction force, and the dent Q can be finely adjusted to return to the original shape.
The elastic pad 18 at the lower end opening of the pulling movable pipe 9 is crushed when the vacuum pad 12 is crushed when a negative pressure is generated inside the pulling movable pipe 9. Thus, the body P when it is brought into close contact with the dent Q is protected at the same time without causing any gap between the movable pipe 9 and the movable pipe 9.
The electromagnet 20 having the curved magnetized portion 22 attached to the lower end opening of the movable pulling pipe 9 has the magnetized portion 22 in contact with the inner side of the concave Q range and then the electromagnet 20. , The pulling movable pipe 9 is pulled upward by the rack and pinion mechanism 17 and attracted to the body P around the recess Q by the suction cup 4. The supported body 2 functions as a reaction force against the traction force, and allows the dent Q to be finely adjusted so as to return to the original shape.
An electromagnet 20 having a screw portion 23 to be screwed into a screw groove 21 at a lower end opening of the pulling movable pipe 9 and a magnetized portion 22 having a curved surface is formed at the lower end of the pulling movable pipe 9. The electromagnet 20 can be attached to and detached from the opening.

  Since the present invention is configured as described above, the dent Q can be adjusted by finely adjusting the degree of return of the dent Q to the original shape from the outside without imposing an extra load on the vehicle body P. Can be reliably restored to its original shape.

  That is, this is provided with a guide cylinder 1 standing upright supported by a support body 2 addressed around the recess Q of the body P, and a pulling movable pipe 9 which can be moved up and down within the guide cylinder 1. This is because the lower end opening of the pulling movable pipe 9 is attached to the inner side of the depression Q range and pulled upward to restore the depression Q to the original shape. As a result, the vacuum suction member, the vacuum pad, the suction cup, etc. cover the entire dent as in the prior art, and the degree of return to the original shape of the dent cannot be confirmed from the outside. Since the pulling movable pipe 9 is in contact with the inside, the degree of return of the recess Q to the original shape can be easily confirmed from the periphery of the contact portion of the pulling movable pipe 9.

  The movable pulling pipe 9 can be moved up and down by a rack and pinion mechanism 17 in the guide cylinder 1 and its upper end opening can be connected to the vacuum pump 12. The lower end opening of the movable pulling pipe 9 is recessed inside the Q range. A negative pressure is generated in the movable pulling pipe 9 by suctioning air with the vacuum pump 12, and the movable pulling pipe 9 is finely adjusted upward or downward by the rack and pinion mechanism 17. Therefore, after the movable pipe for towing 9 is brought into pressure contact with the recess Q by the generation of negative pressure, the rack and pinion mechanism 17 finely adjusts the vertical direction while confirming the degree of return of the recess Q to the original shape from the outside. By operating, the dent Q can be repaired easily without damaging the painted surface of the body P. Incidentally, it is not necessary to polish, grind or refinish the surface after the repair operation. Further, the dent Q can be easily repaired even if the vehicle body P is a curved surface.

  The rack and pinion mechanism 17 rotates with an operation dial 15 supported along the width direction of the guide cylinder 1 so as to mesh with the rack gear 13 attached along the outer surface length direction of the pulling movable pipe 9. Since it is composed of the pinion gear 16 provided on the shaft 15a, fine adjustment in the upward or downward direction of the pulling movable pipe 9 can be reliably performed by the rotation of the operation dial 15.

  Since the suction cup 4 adsorbing to the body P around the recess Q is attached to the lower end of the support 2 so as to be swingable in the vertical direction and finely adjustable in the height direction. Can be supported upright and stably corresponding to the curved surface of the body P around the dent Q, so that the lower end opening of the traction movable pipe 9 can be brought into contact with the inner side of the dent Q without tilting. Can do.

  An annular elastic pad 18 for protecting the body P when it is brought into close contact with the recess Q is detachably attached to the lower opening of the movable pulling pipe 9 so that the vacuum pump 12 can move the movable pulling. When the negative pressure is generated inside the pipe 9, the elastic pad 18 is crushed, so that it is possible to stably hold the elastic pad 18 without causing a gap between the recess Q and the movable pulling pipe 9. In addition, the body P can be protected when the lower end opening of the pulling movable pipe 9 is brought into close contact with the recess Q.

  The lower end opening of the pulling movable pipe 9 can be equipped with an electromagnet 20 that can be in contact with the inside of the dent Q range, and the dent Q is pulled by the magnetic attractive force generated by energizing the electromagnet 20. Since the original shape was to be restored, the dent Q can be restored to the original shape by pulling the pulling movable pipe 9 upward by the rack and pinion mechanism 17 together with the magnetizing force of the electromagnet 20 on the dent Q. Incidentally, when the body P is formed of a ferromagnetic material having a large magnetic permeability excluding a material having a low magnetic permeability such as aluminum, copper, or nickel, the dent Q repair by the electromagnet 20 is effective. .

  Since the electromagnet 20 has the screw part 23 to be screwed into the screw groove 21 formed in the lower end opening of the pulling movable pipe 9 and the magnetized part 22 having a curved surface. The electromagnet 20 can be easily attached to and detached from the lower end opening of the pulling movable pipe 9, and the magnetically attracting portion 22 is brought into contact with the curved inner surface of the recess Q by the magnetic attraction force. The dent Q can be reliably pulled, and the dent Q can be repaired smoothly.

  In addition, the code | symbol attached | subjected in each of the means for solving said subject, and the item of the effect of an invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to the structure and shape shown by these descriptions and reference numerals in the drawings.

It is a perspective view which shows the use condition in one form for implementing this device. It is sectional drawing which shows the use condition at the time of utilizing a negative pressure suction force similarly. It is sectional drawing which shows the modification at the time of utilizing the magnetic attachment force by the electromagnet to a dent.

  An embodiment for carrying out the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the drawings is a guide cylinder constituting a vehicle body dent repairing apparatus according to the present invention. As shown in FIGS. 1 and 2, the guide cylinder 1 is supported upright by a tripod-like support body 2 that is addressed around the recess Q of the body P. The support body 2 has, for example, three leg portions 2A, 2B, 2C formed in a curved arm shape projecting upward, and projects horizontally on the outer wall of the guide tube 1 at intervals of 120 °. One end of each of the leg portions 2A, 2B, 2C is pivotally attached to a bracket 3 having a substantially U-shaped frame shape, which is open at the bottom, via a pivot shaft 3a so as to be swingable in the vertical direction.

  On each leg 2A, 2B, 2C of the support body 2, a suction cup 4 adsorbed on the body P around the recess Q is attached so as to be swingable in the vertical direction and finely adjustable in the height direction. That is, a horizontal support plate 6 that can swing in the vertical direction via a pivot 5 supported at each lower end of the legs 2A, 2B, and 2C is provided, and a screw portion 7 that protrudes upward from the center of the upper surface of the suction cup 4 is provided. Is inserted into the horizontal support plate 6, and the horizontal support plate 6 is held between a pair of upper and lower nuts 8 a and 8 b screwed into the screw portion 7, and the suction cup 4 is adjusted to a predetermined height by adjusting both nuts 8 a and 8 b. It is meant to be fixed.

  When the support body 2 is placed around the dent Q of the body P, the guide cylinder 1 is substantially inside the dent Q range after the legs 2A, 2B, 2C of the support body 2 are opened around the guide cylinder 1. The height direction is finely adjusted by the nuts 8 a and 8 b of the screw portion 7 so as to be arranged vertically, and then the suction cup 4 is attracted to the body P. When not in use, the legs 2A, 2B, 2C can be closed on the guide tube 1 side.

  In the guide cylinder 1, a movable pulling pipe 9 is arranged so as to be slidable in the vertical direction. That is, the rack gear 13 is attached to the outer surface of the movable pulling pipe 9 along the length (up and down) direction, and along the width direction of the guide cylinder 1 in the bracket 14 formed on the outer wall of the guide cylinder 1. The pulling movable pipe 9 can be moved up and down within the guide cylinder 1 by a rack and pinion mechanism 17 in which a pinion gear 16 formed at the center of the supported rotary shaft 15 a with the operation dial 15 is engaged with the rack gear 13.

  And the upper-end opening part of the pulling movable pipe 9 is sealed with the cap 10 with the suction tube 10a, and the suction tube 10a is connected to the vacuum pump 12 which has the plug 11 for power supply connection.

  An elastic pad 18 made of, for example, an annular rubber or the like for protecting the body P when being brought into close contact with the recess Q is detachably attached to the edge of the lower end opening of the pulling movable pipe 9. Then, the elastic pad 18 at the lower end opening of the movable pulling pipe 9 is brought into contact with the inside of the dent Q range and air is sucked by the vacuum pump 12 to generate a negative pressure in the movable pulling pipe 9. The recess Q is restored to its original shape by finely adjusting the movable pulling pipe 9 upward or downward by the rack and pinion mechanism 17.

  Next, an example of use and operation of the best mode configured as described above will be described.

  First, the legs 2A, 2B, 2C of the support 2 are opened around the guide tube 1, and the lower end of the support 2 is arranged so that the guide tube 1 is disposed substantially perpendicular to the substantially central surface of the recess Q. Then, the height direction is finely adjusted by the nuts 8 a and 8 b of the screw portion 7 and is sucked to the body P by the suction cup 4.

  The operation dial 15 of the rack and pinion mechanism 17 is turned to lower the pulling movable pipe 9 in the guide cylinder 1, and the elastic pad 18 at the lower end opening is brought into contact with the inside of the dent Q range.

  Next, the plug 11 is connected to a power source (not shown), and the vacuum pump 12 is driven to suck the air in the pulling movable pipe 9 through the suction tube 10a. As a result, a negative pressure is generated in the pulling movable pipe 9 so that the elastic pad 18 is pressed into the recess Q.

  The operation dial 15 of the rack and pinion mechanism 17 is rotated in the reverse direction (A direction in the figure) to pull the movable pulling pipe 9 in the upward direction (B direction in the figure). At this time, by pulling the pulling movable pipe 9 while finely adjusting with the operation dial 15, the recess Q is surely restored to the original shape.

  FIG. 3 shows a modified example of the embodiment of the present invention in the case where the magnetic force of the electromagnet 20 to the recess Q is used for repair. When the body P is made of a ferromagnetic material having a high magnetic permeability excluding a material having a low magnetic permeability such as aluminum, copper, and nickel, the dent Q repair by the electromagnet 20 is effective.

  In this example, an electromagnet 20 that can contact the inner side of the depression Q range can be attached to the lower end opening of the pulling movable pipe 9, and the depression Q is generated by the magnetic attractive force generated by energization of the electromagnet 20. It is intended to restore the original shape by towing the. Further, the upper end opening of the pulling movable pipe 9 is sealed with a sealing material 19 if necessary.

  Specifically, a female screw groove 21 is formed on, for example, the inner wall of the lower end opening of the pulling movable pipe 9, and the electromagnet 20 includes a male screw portion 23 screwed into the screw groove 21 and a recess Q range. It consists of a curved surface-like magnetized portion 22 that is in contact with the substantially central portion inside.

  A part of the screw portion 23 is exposed downward from the lower end opening of the pulling movable pipe 9. For example, an electric wire 24 is wound around the exposed screw portion 23 in a coil shape, and both ends of the electric wire 24 are transformed. A plug 26 is connected to a power source (not shown) through a device 25.

  In use, first, the plug 26 is connected to a power source, and a predetermined current is passed through the electric wire 24 via the transformer 25. As a result, the magnetized portion 22 and the screw portion 23 of the electromagnet 20 have different magnetic poles, and the body P is magnetized in a reverse polarity by the magnetic pole of the magnetized portion 22 and magnetically attracted.

  In this magnetically attracted state, the operation dial 15 of the rack and pinion mechanism 17 is rotated in the reverse direction (A direction in the figure) to pull the movable pulling pipe 9 in the upward direction (B direction in the figure). At this time, the dent Q is surely restored to the original shape by pulling the pulling movable pipe 9 upward while finely adjusting with the operation dial 15.

  In the illustrated example, the screw portion 23 of the electromagnet 20 is a male type. Instead, the screw portion 23 is a female type, and a male screw groove formed on the outer wall of the lower end opening of the pulling movable pipe 9. 21 may be screwed into the female screw portion 23 of the electromagnet 20.

  In addition to the above-described screw type, for example, an electromagnet is hooked, or a collet chuck (not shown) is used as a coupling tool, for example, and fixed to the lower end opening of the pulling movable pipe 9. It may be what you do.

P ... Body Q ... Recess 1 ... Guide tube 2 ... Supports 2A, 2B, 2C ... Leg 3 ... Bracket 3a ... Axis 4 ... Suction cup 5 ... Axis 6 ... Horizontal support plate 7 ... Screws 8a, 8b ... Nut 9 ... Pulling movable pipe 10 ... Cap 10a ... Suction tube 11 ... Plug 12 ... Vacuum pump 13 ... Rack gear 14 ... Bracket 15 ... Operation dial 15a ... Rotating shaft 16 ... Pinion gear 17 ... Rack and pinion mechanism 18 ... Elastic pad 19 ... Sealing material 20 ... Electromagnet 21 ... Screw groove 22 ... Magnetized part 23 ... Screw part 24 ... Electric wire 25 ... Transformer 26 ... Plug

Claims (7)

  A guide cylinder that is supported upright by a support body that is addressed to the periphery of the body recess, and a movable pulling pipe that can move up and down within the guide cylinder, and the lower end opening of the movable pulling pipe is located inside the recessed range. A dent repairing device for a vehicle body, wherein the dent is repaired to an original shape by being attached to a tow and pulled upward.   The movable pipe for towing can be moved up and down by a rack and pinion mechanism in the guide cylinder, the upper end opening can be connected to a vacuum pump, and the lower end opening of the movable towing pipe is brought into contact with the inside of the recessed range to make a vacuum. The vehicle body according to claim 1, wherein a negative pressure is generated in the movable pulling pipe by sucking air with a pump, and the movable pulling pipe is finely adjusted upward or downward by a rack and pinion mechanism. Recess repair device.   The rack and pinion mechanism is provided on a rack gear attached along the outer surface length direction of the movable pipe for towing, and a rotary shaft with an operation dial supported along the width direction of the guide cylinder so as to mesh with the rack gear. The indentation repair device for a vehicle body according to claim 2, comprising a pinion gear.   2. The vehicle body dent restoration device according to claim 1, wherein a suction cup adsorbing to the body around the dent is attached to the lower end of the support so as to be swingable in the vertical direction and finely adjustable in the height direction.   3. The vehicle body dent repair device according to claim 1, wherein an annular elastic pad for protecting the body when it is brought into close contact with the dent is detachably attached to a lower end opening of the movable pulling pipe.   An electromagnet that can contact the inside of the recessed area can be attached to the opening at the lower end of the pulling movable pipe, and the recess is pulled back to its original shape by the magnetic attraction generated by energizing the electromagnet. The dent repairing device for a vehicle body according to claim 1 made.   7. The dent of a vehicle body according to claim 6, wherein the electromagnet includes a screw portion that is screwed into a screw groove formed in a lower end opening portion of the pulling movable pipe, and a magnetized portion having a curved surface. Repair device.

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