JPH0431869Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a bracket structure for a synthetic resin molded product, such as a synthetic resin bumper for an automobile.

[Background of the idea]

An example of a conventional synthetic resin molded product having a bracket structure is shown in FIG. This is a molded product that is entirely made of synthetic resin, and a bracket 2 that projects approximately at right angles is integrally formed on the back side of a plate-shaped portion 1.
A tongue piece 4 with a mounting hole 3 formed therein is formed on one edge of the bracket 2. Furthermore, speaking specifically about this molded product, the thickness a of the bracket 2 is approximately equal to the thickness a of the plate-shaped portion 1 for the necessary strength, so that the separation of this molded product is By cooling after molding, the bracket 2 on the surface of the plate-like part 1 is
A sink mark 5 occurs near the base of the product, as shown by the broken line, and the product value is reduced.

Therefore, in order to prevent the occurrence of such sink marks 5, it is conceivable to make the base of the plate-like part 1 in the bracket 2 a thin wall 6 as shown in FIG. The strength of the boundary between the bracket 2 and bracket 2 is insufficient, and commercialization is therefore impossible.

[Purpose of invention]

The present invention was developed with this in mind, and by forming the bracket thinner in areas where sink marks are likely to occur on the surface of the plate-shaped portion 1, the occurrence of sink marks can be prevented without reducing the strength. However, it is an object of the present invention to provide a bracket structure for synthetic resin molded products that can increase the value of various products.

[Example of idea]

The present invention will be explained in detail below based on the embodiment shown in FIGS. 1 and 2.

Reference numeral 11 denotes a plate-shaped part made of a synthetic resin molded product, and a bracket 12 extending in a right angle direction is integrally formed on the back surface of this plate-shaped part 11. This bracket 12 has a coupling hole 13 for coupling with other members.
A main tongue piece 12a formed by perforating the main tongue piece 12a, and sub tongue piece parts located on both sides of the main tongue piece 12a and formed so that their surfaces are aligned on the same plane as the surface of the main tongue piece 12a. 12b. The wall thickness of the main tongue piece 12a is set to be equal to or slightly thicker than the wall thickness of the plate-like part 11, but the connection base of the main tongue piece 12a to the plate-like part 11 is , recess 14 for reducing wall thickness
is formed. Also, the sub tongue piece part 12
The wall thickness b is set to be thinner than the wall thickness of the main tongue piece 12a.

As described above, the bracket structure in this embodiment has a main tongue portion 12a which is made thick to ensure strength for attachment to other members, and a main tongue portion 12a that protrudes on both sides of the main tongue portion 12a and Since the secondary tongue piece 12b is relatively thin, there is no sink mark at the base of the plate-like part 11 with the secondary tongue piece 12b. It will never occur. Further, a recess 14 is provided at the base of the main tongue portion 12a with the plate-like portion 11.
Since the main tongue portion 12a is thin and formed, sink marks will not occur at the base of the main tongue portion 12a. In addition, this main tongue portion 12a and the plate-like portion 1
Since the joint with 1 is formed in a U-shape as clearly shown in Figure 2, the strength of the joint can be ensured sufficiently, so a synthetic resin molded product with excellent commercial value can be obtained. It has the effect of

[Summary of the idea]

A tongue-shaped bracket 12 is provided on the back side of the plate-shaped portion 11.
The bracket 12 has a main tongue part 12a having a coupling hole 13 with another member, and the plate-shaped part of the main tongue part 12a A recess 14 for thinning is provided on one surface of the connecting base to the portion 11, and one surface on both sides of the main tongue portion 12a is aligned on the same plane as the surface of the main tongue portion having the recess 14. Sub tongue pieces 12b and 12a, which are thinner in thickness than the main tongue piece 12a, are integrally provided so that the plate-shaped part 11 and the main tongue piece 12a are connected to each other by the sub tongue pieces 12b and 12a. This is a bracket structure of a synthetic resin molded product characterized by being bonded together.

[Effect of idea]

Therefore, according to this bracket structure, since the sub tongue portion 12b is relatively thin, no sink marks occur at the base of the plate portion 11 with the sub tongue portion 12b. Also, the main tongue piece 12a
Since the concave portion 14 is formed at the base of the main tongue portion 12a and the main tongue portion 12a is thin, sink marks will not occur at the base of the main tongue portion 12a. Furthermore, since the joint between the main tongue portion 12a and the plate-like portion 11 is formed in a U-shape as clearly shown in FIG. 2, sufficient strength of the joint can be ensured. This has the effect of producing synthetic resin molded products with excellent commercial value.

[Brief explanation of the drawing]

FIG. 1 is a rear perspective view showing an embodiment of the bracket structure according to the present invention, FIG. 2 is a front perspective view thereof, and FIGS. 3 and 4 are perspective views showing respective conventional examples. 11... Plate-shaped part, 12... Bracket, 12a
...Main tongue piece portion, 12b...Sub-tongue piece portion, 13...Mounting hole, 14...Recessed portion.

Claims (1)

[Scope of utility model registration request] A tongue-shaped bracket 12 is provided on the back side of the plate-shaped portion 11.
The bracket 12 has a main tongue part 12a having a coupling hole 13 with another member, and the plate-shaped part of the main tongue part 12a A recess 14 for thinning is provided on one surface of the connecting base to the portion 11, and one surface on both sides of the main tongue portion 12a is aligned on the same plane as the surface of the main tongue portion having the recess 14. Sub tongue pieces 12b, 12b, which are thinner in thickness than the main tongue piece 12a, are integrally provided so that the plate-shaped part 11 and the main tongue piece 12a are connected to each other by the sub tongue pieces 12b, 12b. Bracket structure of synthetic resin molded product characterized by bonding.