JP2003038992A - Coating tool for synthetic resin bumper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating tool to be used in common without fabricating the coating tool for every shape of synthetic resin bumpers of automobile. SOLUTION: In the coating tool for the synthetic resin bumper, a support member for supporting the synthetic resin bumper is an elastic plate 1 and has a structure composed of plates 1a for supporting both of nearly end parts of the synthetic bumper at four places in the width direction and plates 1b for supporting both of nearly end parts at four places in the longitudinal direction. Fixing members 2a and 2b for fixing the plates have a position adjusting function, respectively, and the fixing members 2b for the plates 1b for supporting both end parts of the synthetic resin bumper in the longitudinal direction have an inclined angle, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating jig used when coating the surface of a synthetic resin bumper for automobiles.

[0002]

2. Description of the Related Art When coating the surface of a synthetic resin bumper for automobiles, an FRP manufactured according to the shape of the back surface of the synthetic resin bumper, or a coating jig such as a metal rod or plate is used. Painting is done by fitting the synthetic resin bumper.

In particular, when performing baking coating, it is necessary to put the synthetic resin bumper in a baking oven and expose it to high temperatures, and therefore, thermal deformation easily occurs at the contact portion of the synthetic resin bumper that comes into contact with the coating jig. .

For example, when a coating jig is made of a metal rod, the temperature of the rod becomes high in the baking furnace.
The contact portion of the synthetic resin bumper is thermally deformed due to its own weight, and there is a problem that after the baking finish, the deformation remains such that the shape of the coating jig is transferred to the synthetic resin bumper.

In order to prevent thermal deformation of the synthetic resin bumper, a coating jig as shown in FIG. 7, which is made of a plurality of rods so as to conform to the shape of the synthetic resin bumper, is used (see FIG. The middle dotted line is the synthetic resin bumper).

However, since the shape of the automobile bumper differs depending on the vehicle type, it is necessary to prepare a coating jig for each synthetic resin bumper, and since the model change is performed in a relatively short period of time, the coating jig is required each time. It was also necessary to make.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a coating jig which can be shared without producing a coating jig for each synthetic resin bumper.

[0008]

Means for Solving the Problems The inventors of the present invention have used a plate material having elasticity at a portion for supporting a synthetic resin bumper so that even a synthetic resin bumper having a different shape is elastically deformed to have its shape. The present invention has been completed on the finding that they can be followed and that the influence of thermal deformation can be reduced by supporting them on the surface of the plate material.

That is, the present invention provides a coating jig for a synthetic resin bumper, characterized in that the supporting member for supporting the synthetic resin bumper is a plate material having elasticity.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a coating jig of the present invention.

A supporting member for supporting the synthetic resin bumper is a plate member 1 having elasticity, and a plate member 1a for supporting substantially both end portions in the width direction of the synthetic resin bumper at four places and substantially both end portions in the length direction. It is an example which shows the structure which consists of the board | plate material 1b supported at four places.

The plate member 1a, which supports substantially both ends in the width direction at four places, may have a structure in which substantially both ends are supported at two places, but the bumper is usually asymmetric in the width direction. In many cases, the structure of supporting at four places as in this example is more versatile and preferable.

Further, as shown in this example, one end portion of the plate member 1b which supports substantially both end portions in the length direction at four places may be fixed and the other end portion may be free. As described later, the other end may be fixed and the plate member 1b may be held in a substantially circular shape.

The fixing member 2a for fixing the plate member 1a or the fixing member 2b for fixing the plate member 1b may have a structure in which the plate member 1 is sandwiched and tightened and fixed by screws 3 as shown in FIG. As shown in (1), one end of the plate material 1 may not penetrate, and the other end may be clamped and fixed.

In the above example, the structure is such that it is fastened and fixed with screws, but a plurality of holes are provided in the plate member, one hole is provided in the fixing member, and the pins are inserted after adjusting the length of the plate member. The structure may be fixed.

That is, it is sufficient that the fixing member has a function of adjusting the length of the plate material. With this function, even if the width, length, shape, etc. of the synthetic resin bumper are different,
The length of the plate material can be adjusted and used.

The surface of the fixing member that holds the plate member may be provided with an anti-slip member to prevent slipping, or it is preferable to provide an anti-slip structure having irregularities on the surface.

Further, the fixing members 2b of the plate member 1b, which support substantially both ends of the synthetic resin bumper in the length direction, are preferably arranged on the base 4 with an inclination angle.

For example, as shown in FIG. 4, when the synthetic resin bumper is installed on the coating jig, the curved portions on both sides of the bumper and the plate member 1b are smoothly brought into contact with each other so that they can be easily supported. This is because it becomes easy to hold the plate material 1b even when the plate material 1b has a substantially circular shape as shown in FIG.

Therefore, the inclination angle of the fixing member 2b may be in the range of 30 to 60 degrees with respect to the base 4,
The range of 0 to 50 degrees is particularly preferable.

Further, it is preferable that each of the fixing members 2a and 2b has a structure that can be moved on the table 4 so that the position can be adjusted.

By the length adjusting mechanism of the plate member 1 and the position adjusting mechanism of the fixing member, it can be applied to various automobile bumpers.

In the example shown in FIG. 1, the fixing members 2a and 2b can be moved (in the direction of the arrow in the figure) on the plate-like body 5 constituting the table 4, and the space between the plate-like bodies 5 is adjusted ( If a structure is possible (in the direction of the arrow in the drawing), each fixing member has a structure in which the position can be adjusted in both the width direction and the length direction of the synthetic resin bumper.

The material of the elastic plate material is metal, polycarbonate resin, PBT resin, PP.
It is preferable to use a heat resistant synthetic resin such as S resin, PSF resin, PES resin, PEEK resin, or a resin obtained by reinforcing these resins with glass fiber.

The flexural rigidity (longitudinal elastic modulus × second moment of area) of the plate material may be selected so as to be equal to or less than the flexural rigidity of the synthetic resin bumper.

In particular, since the synthetic resin bumper has a high temperature of 80 to 140 ° C. during baking coating, a plate material having a rigidity that is not more than the bending rigidity of the synthetic resin bumper at the temperature during baking coating is selected. Is preferable.

Since the synthetic resin bumper is usually made of polypropylene resin and has a wall thickness of 2 to 4 mm,
For example, when the plate material is made of metal, the above conditions can be satisfied if the plate material has a thickness of 0.3 to 0.8 mm and a width of 5 to 50 mm.

In particular, the wider the plate material is, the larger the contact area with the synthetic resin bumper is, so that the load is dispersed and the thermal deformation of the bumper during baking coating is reduced. Since it is preferable that the width of the plate material is narrow in order to support such a curved surface portion, the width of the plate material is preferably 10 to 20 mm from such a viewpoint.

[0029]

As described in detail above, since the coating jig for the synthetic resin bumper of the present invention is supported by the elastic plate material, the supporting member is elastically deformed even if the synthetic resin bumper has a different shape. And follow that shape,
Applicable to various synthetic resin bumpers (see Figures 4 and 6),
Further, by supporting with a plate material, it is possible to reduce thermal deformation of the synthetic resin bumper during baking coating.

Further, by making it possible to adjust the position of the fixing member for fixing the plate material, the coating jig has excellent versatility, and it is easy to replace or adjust the coating jig even when producing a large number of small quantities. It can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a coating jig for a synthetic resin bumper of the present invention.

FIG. 2 is a schematic view showing an embodiment of a fixing member for fixing a plate material.

FIG. 3 is a schematic view showing another embodiment of a fixing member for fixing a plate material.

FIG. 4 is a schematic view showing states before and after supporting a synthetic resin bumper by a coating jig according to an embodiment of the present invention.

FIG. 5 is a schematic view showing states before and after supporting a synthetic resin bumper by a coating jig according to another embodiment of the present invention.

FIG. 6 is a schematic view showing a state in which synthetic resin bumpers having different lengths are supported by the coating jig shown in FIG.

FIG. 7 is a schematic diagram showing an example of a conventional jig for coating a synthetic resin bumper.

[Explanation of symbols]

1 Elastic plate material 2 Fixing member that fixes the plate material 3 screws 4 units 5 Plate

Claims (5)

[Claims] 1. A jig for coating a synthetic resin bumper, wherein a supporting member for supporting the synthetic resin bumper is an elastic plate material. 2. The jig for coating a synthetic resin bumper according to claim 1, wherein the fixing member for fixing the elastic plate material has a function of adjusting the length of the elastic plate material. 3. The jig for coating a synthetic resin bumper according to claim 1, wherein the fixing member for fixing the elastic plate material has a position adjusting function. 4. The coating of a synthetic resin bumper according to claim 1, wherein the fixing member of the elastic plate material that supports substantially both ends of the synthetic resin bumper in the longitudinal direction has an inclination angle. jig. 5. The jig for coating a synthetic resin bumper according to claim 1, wherein a surface of the fixing member for holding the elastic plate member has a non-slip structure.