Connection structure

Abstract

To provide a connection structure that can prevent an engaging piece from getting out from an engaged hole of a second member when a first member is cold-shrunk.SOLUTION: In a structure connecting a radiator support cover 1 as a first member and a side cover 2 as a second member, the radiator support cover 1 is formed of resin having flexibility, and an engaging piece 3 is disposed on the back surface of the radiator support cover 1. The engaging piece 3 is shaped in a thin plate and disposed to protrude perpendicularly with respect to the back surface. An engaged hole 4 into which the engaging piece 3 is inserted is disposed in the back surface of the side cover 2. A center line 20 along a width direction of the engaging piece 3 is set to be orthogonal to a virtual straight line 30 connecting a center position in the width direction of the engaging piece 3 and a center line 10 of cold shrinkage of the radiator support cover 1.SELECTED DRAWING: Figure 2A

Description

[Technical field]

[0001] The present invention relates to a connection structure for two members. [Background technology]

[0002] For example, paragraph 0021 of Patent Document 1 states that "A locator pin 40 (positioning pin) is provided at approximately the center of the rear surface of main body portion 25 of plate member 5, which positions front bumper main body 4 on the vehicle body, so as to protrude approximately horizontally toward the rear of the vehicle body. Locator pin 40 has protrusions with approximately rectangular cross-sections formed from its axis portion in each of the up, down, left and right directions of the vehicle body so that it has a tapered shape that reduces in diameter toward the tip, and each protrusion is inserted into a positioning hole 41 formed in a predetermined portion of vehicle body panel 11, thereby positioning front bumper main body 4 relative to the vehicle body."

[0003] Furthermore, paragraph 0024 of Patent Document 1 states that "A flexible claw portion 50 is integrally formed on the upper part of locator pin 40, which is inclined from approximately the center between the base end and the portion corresponding to hanging surface portion 46 toward the base end of locator pin 40 so that the position increases upward as it approaches the base end. As shown in FIG. 2, when front bumper 1 is in the correct mounting position on the vehicle body, locator pin 40 is in a state in which claw portion 50 is positioned completely rearward of positioning hole 41 on the vehicle body, and in this state, tip 50a (free end) of claw portion 50 is close to the upper edge of positioning hole 41." [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3868229 (JP 2002-362265 A) Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned Patent Document 1, a claw portion 50 is provided on the locator pin 40 to prevent the locator pin 40 from slipping out of the positioning hole 41 in the penetrating direction of the positioning hole 41. Therefore, there is a concern that it may become difficult to remove the locator pin 40 from the positioning hole 41 in the penetrating direction of the positioning hole 41 when attaching or detaching the plate member 5.

[0006] In view of the above circumstances, an object of the present invention is to provide a connecting structure capable of preventing a locking piece from slipping out of a locked hole of a second member when a first member undergoes cold shrinkage. [Means for solving the problem]

[0007] The present invention is a structure for connecting a first member and a second member, the first member being formed of a flexible resin, a locking piece being provided on one side of the first member, the locking piece being shaped like a thin plate and arranged so as to protrude perpendicularly from the one side, a locking hole being provided on one side of the second member into which the locking piece is inserted, and a center line along the width direction of the locking piece being set so as to be perpendicular to an imaginary straight line connecting the widthwise center position of the locking piece and the center of cold contraction in the first member.

[0008] According to this configuration, when the first member undergoes cold contraction, the locking piece of the first member receives a tensile load toward the center of the cold contraction within the locked hole of the second member.

[0009] As a result, one and the other widthwise ends of the locking piece are pressed against the inner periphery of the locked hole, making it difficult for the locking piece to slip out of the locked hole.

[0010] The present invention is a structure for attaching a radiator support cover to a side cover, the radiator support cover is made of flexible resin, a locking piece is provided on the back surface of the radiator support cover, the locking piece is thin and protrudes perpendicularly from the back surface, the back surface of the side cover is provided with a locking hole into which the locking piece is inserted, the locking hole has a rectangular cross section, the locking piece is set so that its center line along the width direction is aligned with the diagonal line of the locking hole, and the center line along the width direction of the locking piece is set so as to be perpendicular to an imaginary straight line connecting the widthwise center position of the locking piece and the center of cold contraction of the radiator support cover. Effect of the Invention

[0011] According to the present invention, it is possible to provide a connection structure that can prevent the locking piece from coming out of the locked hole of the second member when the first member undergoes cold shrinkage. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a bottom view showing one embodiment of a connection structure according to the present invention. [Figure 2A] 4 is an enlarged schematic view of a left end portion of the radiator support cover. FIG. [Figure 2B] 2B is a cross-sectional view taken along line (2B)-(2B) in FIG. 2A, seen from the direction of the arrows. [Diagram 3] FIG. 11 is a bottom view showing another embodiment of a connecting structure according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

[0014] As shown in FIG. 1, for example, a radiator support cover 1 as a first member disposed at the front of an automobile is attached to the front ends of side covers 2, 2 as second members disposed at the left and right front sides of the automobile.

[0015] The radiator support cover 1 is formed from a flexible resin (such as polypropylene resin).

[0016] Locking pieces 3 are provided at the left and right ends of the rear side of the radiator support cover 1. Meanwhile, locking holes 4 into which the locking pieces 3 are inserted are provided at the left and right ends of the rear side of the side covers 2, 2.

[0017] The locking piece 3 is in the form of a rectangular thin plate, and the locked hole 4 is in the form of a square.

[0018] As shown in FIG. 2A, the locking piece 3 is set so as to be inserted into the locking hole 4 in such a position that a center line 20 along the width direction of the locking piece 3 is aligned with a diagonal line of the locking hole 4.

[0019] The center line 20 along the width direction of the locking piece 3 is set so as to be perpendicular to an imaginary line 30 connecting the center position of the locking piece 3 in the width direction and the center 10 of cold contraction in the radiator support cover 1.

[0020] Incidentally, the center 10 of cold shrinkage in the radiator support cover 1 is the central position in the longitudinal direction and the central position in the width direction of the radiator support cover 1, as shown in FIG.

[0021] Next, a procedure for connecting the radiator support cover 1 to the side cover 2 will be described.

[0022] First, the locking piece 3 of the radiator support cover 1 is inserted downward from above into the locking hole 4 on the back side of the side cover 2. In this state, a gap X is ensured between one corner of one widthwise end of the thin plate-shaped locking piece 3 and a first side 4a of the inner circumference of the locking hole 4 that faces it, and a gap Y is ensured between one corner of the other widthwise end of the thin plate-shaped locking piece 3 and a second side 4b of the inner circumference of the locking hole 4 that faces it.

[0023] In this state where the radiator support cover 1 is connected to the side cover 2, if the radiator support cover 1 undergoes cold shrinkage, the locking pieces 3 will be displaced from the solid line position in Fig. 2B to the two-dot chain line position, and will be deflected by abutting against the first and second sides 4a, 4b of the inner circumference of the locked hole 4. As a result, the locking pieces 3 will be subjected to a tensile load toward the center 10 of cold shrinkage within the locked hole 4, preventing the locking pieces 3 from slipping out of the locked hole 4.

[0024] As described above, according to the embodiment to which the present invention is applied, it is possible to prevent the locking pieces 3 from coming out of the locked holes 4 when the radiator support cover 1 undergoes cold shrinkage.

[0025] The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the claims and a range equivalent to the claims.

[0026] In the above embodiment, the number of locking pieces 3 and locked holes 4 is not particularly limited.

[0027] For example, as shown in Figure 3, in a connection structure between an engine compartment full cover 5 as a first member and a fender side cover 6 as a second member, a locking piece 3 is provided on the engine compartment full cover 5, and a locking hole 4 is provided on the fender side cover 6.

[0028] In this embodiment, the engine compartment full cover 5 is formed into a rectangle when viewed from above, and has locking pieces 3 provided at a total of six locations, including its four corners and each middle point along the longitudinal direction of the left and right sides, and has locking holes 4 provided at three locations on each inner side of the left and right fender side covers 6, for a total of six locations.

[0029] The locking pieces 3 and the locked holes 4 have basically the same configuration as the locking pieces 3 and the locked holes 4 described in the above embodiment. In this embodiment, as in the above embodiment, when the engine compartment full cover 5 cold shrinks, all of the locking pieces 3 are subjected to a tensile load toward the center 10 of cold shrinkage in the corresponding locking holes 4, so that the locking pieces 3 are prevented from slipping out of the locking holes 4. The above actions and effects can be obtained. [Industrial Applicability]

[0030] The present invention can be suitably used in a connection structure for two members. [Explanation of symbols]

[0031] 1 Radiator support cover 2 Side cover 3 Locking piece 4 Locked hole 10 Center of cold shrinkage 20 Center line along the width direction of the locking piece 30 Imaginary Line

Claims

[Claim 1] A structure for connecting a first member and a second member, the first member is made of a flexible resin, and a locking piece is provided on one surface of the first member, the locking piece having a thin plate shape and protruding perpendicularly to the one surface; A locking hole into which the locking piece is inserted is provided on one surface of the second member, A connection structure characterized in that a center line along the width direction of the locking piece is set perpendicular to a virtual line connecting the center position of the locking piece in the width direction and the center of cold contraction in the first member.

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