JPS63101151A - Surface treatment method and jig for putty - Google Patents

Abstract

PURPOSE:To enable the easy treatment of the deformed part of a car body with putty by fitting a bracket to both ends of a forming member made of a resilient material and extending in a lengthwise direction, making a span adjustable between the brackets with the turn of an operation rod inserted therein and deforming the forming member to a predetermined radius of curvature. CONSTITUTION:A forming member 10 extending in a lengthwise direction is made of a material having a resilient force such as hard rubber and synthetic resin. Brackets 12 and 13 are fixed to both ends of the member 10 in a lengthwise direction. An internal thread part is formed on one bracket 12 and a through-hole on the other bracket 13. Then, an operation rod 14 having an external thread part to gear with the internal thread part and flanges 24 and 25, is inserted in the through-hole and length between the brackets 12 and 13 is so made as to be freely adjustable with the turn of the rod 14. And the contact part 11 of the forming member 10 is given a predetermined radius of curvature. The deformed part of a damaged car body is repaired with the application of putty to the predetermined radius of curvature twice or more and the putty can be completely dried, thereby enabling the execution of repair work of proper finish and shortening an overall work period.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a surface treatment method and a putty treatment for repairing, for example, an automobile body.

BACKGROUND ART Conventionally, when the body of an automobile becomes dented due to an accident, in order to repair the dented area with putty, first apply so-called rough putty to the dented area in heaps, and apply the putty thus applied to the area. Heat and dry the putty from the surface. After drying, it is polished to the extent that recesses are formed, and intermediate putty is applied in heaps to the polished recesses. The surface of the intermediate putty is dried, and after drying, the surface of the intermediate putty is polished until a depression is formed. A heaping amount of finishing putty is applied to the recesses formed by polishing the intermediate putty, and after application, the finishing putty is heated and dried from the surface. After this drying, the surface of the finishing putty is polished so that it is continuous with the surface around the repaired area in a smooth flat or curved surface. Surface treatment of such recessed areas required a great deal of labor and time.

Problems to be Solved by the Invention In these prior art, putty is dried from the surface.
The finishing putty layer or intermediate putty layer dries first, resulting in a hard surface. Therefore, if the coarse putty layer is insufficiently dried, there is a risk that the lowest coarse putty layer will remain without drying. To solve this problem, it is necessary to gently heat the finished putty layer from the surface side and dry it for a long time, which results in poor workability.

An object of the present invention is to solve the above-mentioned problems and provide a surface treatment method and a putty jig that can complete the work in a short time without requiring much labor.

Means for Solving the Problem of Space m The present invention involves applying soft putty on one surface of a workpiece having a concave portion, and moving a putty jig having an arcuate contact portion over the surface of the putty. to form a shallow depression,
This series of operations is repeated once or multiple times, putty is applied to the resulting recesses, the putty surface is shaped using the putty jig, the layer surface of the object to be treated is heated, and the putty is applied to the recesses. This is a surface treatment method characterized by drying.

Further, the present invention includes means for displacing both longitudinal portions of the shaping member, which is made of a material having elasticity and has a contact portion extending in the longitudinal direction, toward each other and in a direction away from each other. This is a unique putty jig.

According to the present invention, while the putty applied to the depressed area is still in a soft state, the jig having the arc-shaped contact portion is moved to form the depressed area, and this series of operations is performed simply. This is repeated one or more times, then a soft putty is applied, and while the putty is still soft, shaping is performed using a jig having a contact portion.

Finally, the surface of the object to be treated opposite to the surface to which the putty is applied is heated to dry the putty, and then the multiple layers of putty are polished. Therefore, compared to the above-mentioned prior art, the work process is significantly simplified and the work can be completed in a short time.

Embodiment FIG. 1 is a cross-sectional view showing step by step the treatment process of the surface treatment method of the present invention. First, as shown in FIG. In order to increase the adhesion strength between the putty and the surface, rough putty 3 with high viscosity and good adhesion is applied in heaps. Next, the second
Using the putty jig A9 shown in the figure, a recess 4 is formed as shown in FIG. Next, as shown in FIG. 1(3), a recess 6 shallower than the recess 4 is formed using a putty jig 9. Finally, as shown in Figure 1 (4),
Finishing putty 7 is applied with a spray gun, for example, and putty 3.5.7 is heated by heating using a heat source such as far infrared rays from the opposite side of the metal plate 1 to which rough putty 3 was applied, and after drying, the surface is polished. and finish.

FIG. 2 shows a front view of the putty jig 9 of the present invention, and FIG. 13 shows an exploded perspective view. A putty platen 9 is attached to a shaping member 10 having elasticity such as hard rubber or synthetic resin (a platen).
12.13 is fixed, and the operating rod 14 is attached to this platen 12.13.
The radius of curvature of the contact portion 11 is changed by displacement between the platens 12 and 13 by rotating the platen. The end of the shaping member 10 opposite the platen 12.13 is wedge-shaped, tapering away from the platen 12.13, and has a contact surface 22.23. Contact surface 2
The intersection of 2.23 over the entire length of the shaping member 10 in the longitudinal direction is configured as the contact gii.

Length J of the shaping member 10? 1 has a length longer than the range of the recessed portion 2 to be surface treated, and a platen) 12.1
The length 2 of No. 3 has a length such that the shaping member 10 does not curve in the thickness direction when the operating rod 14 is rotated. The bracket 12 has a screw hole 17, and the bracket 13 has a mounting hole 18. At one end of the operating rod 14,
A 7 flange 23 is fixed, and a 7 flange 24 is fixed at a location slightly apart from the 7 flange 23 by the length 2 of the bracket 13 to prevent it from moving in the axial direction of the operating rod into the bracket 13 having the mounting hole 18. 1 = attached, the other end is formed with an external thread, the knob 15 is fixed, and is engaged with the screw hole 17 of the bracket 12.

When using the putty oil tool 9, first bring the contact part 11 into contact with the non-dented surface of the metal plate 1 near the recessed part 2 so that the curvatures of the two match 1, and then rotate the knob 15 so that the contact part 11 The rough putty layer 3 is processed as described above by rotating the primary knob 15 in the opposite direction to make the contact portion 11 protrude greatly.
The intermediate putty layer 5 is processed as described above by increasing the radius of curvature.

By rotating the knob 15 as described above, the radius of curvature of the contact portion 11 can be arbitrarily selected.

Figure 4 shows putty ffi 3.5.7 Putty oil%9 during shaping
FIG. 2 is an enlarged cross-sectional view of the vicinity of the contact surface 11 of FIG.

Generally, when shaping the putty surface with a thin plate, if the plate is applied perpendicularly to the putty surface and slid on the putty surface, the surface will become rough. However, when the thin plate is slid in the direction of movement, the contact surfaces 22 and 23 of the shaping member 10 have a thickness of 20 to 20 mm in the thickness direction of the shaping member 10 in order to obtain an effect of 0 or more, which results in a smooth finished surface. An angle θ of 45° is provided.

FIG. 5 is a diagram showing another configuration for preventing the shaping member 10 from curving in the thickness direction. One or two flexible thin plates 30 are placed inside the shaping member 10 at the contact portion 1.
By embedding the thin plates 30 parallel to 1 and parallel to each other so that the thickness direction of the thin plate 30 is perpendicular to the longitudinal direction of the shaping member 10, it is possible to completely prevent the shaping member 10 from curving in the thickness direction. .

The configuration in which one end of the operating rod 14 is mounted on the bracket 13 having the mounting hole 18 so as not to move in the axial direction of the operating rod, and other configurations are not limited to those described in the above-described embodiments.

Effects As described above, according to the present invention, a plurality of layers of soft putty is applied on one surface of the object to be treated having a concave portion, the other surface of the object to be treated is heated, and the putty is dried. By doing this, the moisture moves from the inside to the surface and the putty gradually dries from the side of the workpiece, so no matter how thick the putty is, it dries completely, and the coarse putty will overlap with the surface of the workpiece. It adheres strongly and dries the putty layer all at once, so the work can be completed in a short time.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the process of the present invention step by step, FIG. 2 is a front view of the putty oil tool 9 of the present invention, and ttS3 is an exploded perspective view of the putty oil tool 9 of the present invention. FIG. 4 is an enlarged sectional view of the vicinity of the contact portion 11 of the putty oil tool when shaping the putty layer, and FIG. 5 is a diagram showing another method for preventing the shaping member 10 from curving. DESCRIPTION OF SYMBOLS 1... Metal plate, 2... Recessed area, 3... Rough putty, 4... Recess, 5... Intermediate putty, 6... Recess, 7
... Finishing putty, 9... Oil tool for putty, 10... Shaping member, 11... Contact part

Claims (2)

[Claims] (1) Applying soft putty on one surface of the object to be treated that has a concave portion, and moving a putty jig having an arcuate contact portion over the surface of the putty to form a shallow concavity; This series of operations is repeated once or multiple times, putty is applied to the resulting recesses, the putty surface is shaped using the putty jig, the other surfaces of the object to be treated are heated, and the putty is applied to the recesses. A surface treatment method characterized by drying. (2) A putty characterized by having means for displacing both longitudinal ends of the shaping member, which is made of a material having elasticity and has a contact portion extending in the longitudinal direction, toward each other and in the direction away from each other. Jig for use.