JP2595100Y2 - Mounting structure for synthetic resin molded products - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a synthetic resin molded article to an object to be applied, for example, when attaching an interior pillar garnish or a door trim board of an automobile to a body panel.

[0002]

2. Description of the Related Art Conventionally, when an interior pillar garnish of an automobile is mounted on a body panel, as shown in FIG.
A garnish a is provided with a clipped insertion port b on one side and a headed cylindrical connector d having a keyhole-shaped clip projecting window c formed on an upper wall, and a clip is inserted into the connector d. A method is known in which the upper clip portion f of the clip e is inserted into the mounting hole (not shown) of the vehicle body panel.

However, in this mounting structure, since the shape of the connection member d is complicated and the molding die is complicated in the projecting formation of the connection member d on the garnish a, the cost is high, and particularly, the cost is high. Since the lower engaging portion g of the clip e inserted and engaged with the connecting member d has a structure in which a ring-shaped engaging concave portion j is formed between the upper and lower two flange portions h and i, the shape of the seat is complicated. Therefore, the mold cost is considerably high, such as a slider is required for the mold for molding the mold.

For this reason, as shown in FIG. 10, a method of spin welding a base end surface of a clip k inserted into and engaged with a mounting hole of a vehicle body panel to a surface of a garnish a has also been adopted.

[0005]

However, when the clip k is welded on the garnish a in this way, heat is generated by the welding, so that the garnish sinks and the like, which impairs the design of the garnish and impairs the appearance. Problems arise.

[0006] The present invention eliminates such disadvantages.
A synthetic resin molded product such as garnish that should be attached to an object to be mounted, such as a car body panel, can be attached to the object to be mounted without causing sink marks, etc., and without impairing its appearance. An object of the present invention is to provide a mounting structure for a synthetic resin molded product which does not increase the cost of a mold and has no disadvantage in cost.

[0007]

According to the present invention, in order to achieve the above object, a clip is inserted into and engaged with a mounting hole of an object to be attached, and a synthetic resin molded article is attached to the object through the clip. In the mounting structure, a columnar or cylindrical mounting boss is integrally protruded on the synthetic resin molded product, and has a connecting portion for connecting and fixing the clip on the distal end side and the boss on the base end side. The inner peripheral surface of the concave portion of the connecting member having a circular or ring-shaped concave portion to be fitted is spin-welded to the outer peripheral surface of the boss, and the clip is connected to a connecting portion of the connecting member. The present invention provides a mounting structure for a synthetic resin molded product, wherein the synthetic resin molded product is mounted on the object by being inserted into and engaged with a mounting hole.

According to another aspect of the present invention, there is provided an attachment structure in which a clip is inserted into and engaged with an attachment hole of an object to be attached to the object through the clip. A cylindrical or cylindrical mounting boss is integrally protruded on the resin molded product, and a circular or ring-shaped concave portion to be fitted to the boss is formed on the base end side of the clip. Is spin-welded with the boss outer peripheral surface,
The present invention provides a mounting structure for a synthetic resin molded product, wherein the clip is inserted into and engaged with a mounting hole of the mounting target, and the synthetic resin molded product is mounted on the mounting target.

[0009]

According to the mounting structure of the present invention, a mounting boss is integrally provided on a synthetic resin molded product such as garnish, and the outer peripheral surface of the boss and the inner peripheral surface of a concave portion provided on the base end side of the connecting member or clip. Since the heat is generated during spin welding, the influence of the heat of welding on the surface of the synthetic resin molded product is small, and sinks may occur on the surface even if the synthetic resin molded product has a thin plate shape. And its design is not impaired.

The mounting boss may have a simple cylindrical or columnar shape into which the circular or ring-shaped concave portion can be fitted, and the mounting boss may be integrally formed with a synthetic resin molded product. It is easy, does not significantly increase the cost of the molding die, and does not complicate the shapes of the connecting members and clips, so that these parts can be manufactured at low cost. Further, since the cylindrical or cylindrical mounting boss is inserted into the circular or ring-shaped concave portion to spin-weld the connecting member or the clip, the connecting member or the clip is easily and accurately positioned and synthesized. It can be attached and fixed to the resin molded product, and the positioning and the welding can be performed almost at the same time, so that the cost can be reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a synthetic resin molded product such as a pillar garnish to be mounted on an object to be mounted such as a body panel of an automobile, and a cylindrical mounting boss 2 is integrally provided on one surface thereof. I have. The outer peripheral surface of the boss 2 has a slightly inclined tapered surface.

In the figure, reference numeral 3 denotes a connecting member made of a synthetic resin. The connecting member 3 has a short-axis headed cylindrical base member 4 and a small-diameter cylindrical member integrally projecting from the center of the front end surface. And a connecting shaft 5. The inside of the headed cylindrical base 4 is formed as a concave portion 6 fitted to the boss 2, and the inner peripheral surface thereof has a tapered surface corresponding to the outer peripheral surface of the boss 2,
A ring-shaped wall portion 7 is integrally protruded from the inner peripheral surface so as to form a space 6a into which the boss 2 is inserted. Further, a ring body 8 is integrally protruded from the upper edge of the side of the base 4 along the circumferential direction. At the distal end of the shaft 5, a substantially frustoconical head connecting portion 9 whose base end is formed slightly larger in diameter than the shaft 5 is integrally provided. The ring body 8 serves as a claw for rotating the connecting member 3 during spin welding, and is cut by, for example, reverse rotation after spin welding.

In the drawing, reference numeral 10 denotes a clip made of synthetic resin which is connected to the connecting member 3 and fixed to an object to be mounted. The clip 10 has a substantially cylindrical clip body 11.
And a large-diameter ring-shaped dish-shaped engaging portion 12 integrally connected to the outer peripheral edge of the base end. The clip body 11
Is formed such that the tip portion is gradually tapered, the inner diameter of the tip portion is formed to be substantially the same as the outer diameter D of the connecting shaft 5 of the connecting member 3, and the axial length of the shaft 5 is It is formed substantially the same as the axial length L. Further, on the distal end surface of the clip body 11, four expanding slits 13 are formed at regular intervals from each other along the axial direction. Furthermore,
On the side of the clip body 11, two U-shaped notch grooves 1 on both sides extending from the base end to the substantially central portion in the axial direction, respectively.
4 and 14 are formed facing each other, and these notch grooves 1
By projecting outwardly both side walls surrounded by 4 and 14, the both side walls are formed as clip portions 15 and 15. The locking portion 12 is formed so that its outer peripheral edge is thin.

When the synthetic resin molded article 1 is attached to the object 16 using the connecting member 3 and the clip 10, the boss 2 of the molded article 1 is attached to the concave portion 6 ( The inner surface of the recess 6 is welded to the outer surface of the boss 2 by spin welding, and the outer surface of the ring-shaped wall 7 is welded to the inner surface of the boss 2 by spin welding. After spin welding, the ring body 8 is cut and removed as described above. On the other hand, the clip main body 11 of the clip 10 is inserted into the mounting hole 17 of the mounted object 16 (the hole diameter is formed substantially equal to the outer diameter of the clip main body 11). At this time, when the clip portions 15, 15 protruding outward from the clip body 11 abut against the peripheral edge of the mounting hole 17, and when the clip body 11 is strongly inserted into the mounting hole 17, the clip portions 15, 15 are When the clip main body 11 passes through the mounting hole 17, the clip portions 15 return to the original state when the clip body 11 passes through the mounting hole 17. Then, the clip 10 is attached to the object 1 in a state where the object 16 is held between the lower end portions of the clip portions 15, 15 and the outer peripheral edge of the ring dish-shaped locking portion 12.
6 is attached. Next, the connecting shaft 5 of the connecting member 3 spin-welded to the boss 2 is attached to the clip body 11.
Then, the head connecting portion 9 is projected from the distal end portion of the clip main body 11 by expanding the distal end portion of the clip main body 11 against its elasticity. When the connecting portion 9 projects, the upper end of the clip main body 11 returns to the original state, whereby the clip 10 is pressed between the lower end surface of the head connecting portion 9 of the connecting member 3 and the base 4. As a result, the connecting member 3 is firmly connected to the clip 10.

According to the above mounting structure, the spin welding of the connecting member 3 to the synthetic resin molded product 1 is performed on the boss 2, so that even if heat is generated during the spin welding, the connection member 3 is applied to the surface of the synthetic resin molded product 1. The influence of heat is small, so that the surface of the synthetic resin molded article 1 does not have sink marks or the like, and its appearance is not impaired.

The boss 2 is formed in a cylindrical shape, and its outer peripheral surface and inner peripheral surface are welded to the inner peripheral surface of the recess 6 and the outer peripheral surface of the ring-shaped wall portion 7, respectively. Is firmly fixed.

Further, as described above, the connecting member 3 and the clip 10 are arranged such that the lower end surface of the head connecting portion 9 of the connecting member 3 presses the distal end surface of the clip body 11 and the base 4 is , And the clip 10 is pressed by the connecting member 3, so that both are firmly connected. Moreover, in this case, a slit 13 for expanding is formed on the distal end surface of the clip main body 11, and the distal end of the clip main body 11 can be cracked, so that the head connecting portion 9 of the connecting member 3 can be easily clipped. The connection member 3 is smoothly and easily and reliably connected to the clip 10 because the connection member 3 protrudes forward through the distal end of the main body 11.

Furthermore, the shape of the boss 2 is cylindrical,
Since the boss 2 has a simple shape, the boss 2 can be formed easily and inexpensively integrally with the synthetic resin molded article 1 without increasing the die cost.
Is simple in shape, and can be manufactured relatively inexpensively. In addition, since the cylindrical boss is fitted into the ring-shaped recess 6 and the connecting member 3 is spin-welded, the connecting member 3 is easily and accurately positioned and attached to the synthetic resin molded article 1. It can be fixed, and the positioning and the welding can be performed almost simultaneously, so that the cost can be reduced.

In the above description, the connecting member 3 is connected to the boss 2
On the other hand, the clip 10 is fixed to the attachment 16 and then the connecting member 3 and the clip 10 are connected. However, the connecting order is of course arbitrary, and the connecting member 3 which has been spin-welded to the boss 2 is formed. Alternatively, the clip 10 may be connected to the mounting member 16 and then the clip 10 may be fixed. Alternatively, the clip 10 may be connected to the connection member 3 and then the connection member 3 may be spin-welded to the boss 2. Good.

In the above-described embodiment, the connecting member 3 and the clip 10 are formed as separate bodies. However, they may be integrated.
A cylindrical body having a shape like the base 4 of the connection member 3 may be continuously provided on the lower surface of the connecting member 3, and the inner peripheral surface of the concave portion of the cylindrical body may be formed by spin welding with the boss 2.

Further, the boss 2, the connecting member 3, the clip 10
The shape and the like may be variously changed within the scope of the present invention.

[0023]

According to the present invention, when a synthetic resin molded product is mounted on an object to be mounted, sinking does not occur even when the spin-welding means is used for the synthetic resin molded product, and the design surface is improved. In addition to being well maintained, the shape of the parts used for mounting is simple, without increasing the cost of the mold, and the connecting members or clips can be easily positioned, and the spin welding can be performed almost simultaneously with the positioning. It is possible to easily and reliably obtain a fixed mounting state without causing a disadvantage in cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the mounting structure of the present invention.

FIG. 2 is a sectional view showing an example of a synthetic resin molded product.

FIG. 3 is a side view showing an example of a connection member with a part thereof in section.

FIG. 4 is a plan view showing an example of a clip.

FIG. 5 is a side view showing a cross section of a part of the clip as viewed from the direction of FIG. 4A.

FIG. 6 is a side view of the clip as viewed from the direction of FIG. 4B.

FIG. 7 is a sectional view taken along line CC of FIG. 5;

FIG. 8 is a sectional view taken along line DD of FIG. 5;

FIG. 9 is a perspective view illustrating an example of a conventional mounting structure.

FIG. 10 is a perspective view illustrating another example of a conventional mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic resin molded product 2 Boss 3 Connection member 4 Base 5 Connection shaft 6 Depression 7 Ring-shaped wall part 8 Ring body 9 Head connection part 10 Clip 11 Clip body 12 Engagement part 13 Slit for expansion 14 Notch groove 15 Clip part 16 Workpiece 17 Mounting hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16B 5/06 B29C 65/06 B60R 13/02

Claims (2)

(57) [Scope of request for utility model registration] 1. A clip (10) is inserted into and engaged with a mounting hole (17) of an object (16), and the synthetic resin molded product (1) is inserted into the object (16) via the clip (10). In the mounting structure for mounting the synthetic resin molded article (1),
A column-shaped or cylindrical mounting boss (2) is integrally protruded therefrom, and a connecting portion (9) for connecting and fixing the clip (10) is provided on the distal end side and the boss (2) is provided on the proximal end side. The inner peripheral surface of the concave portion (6) of the connecting member (3) having the circular or ring-shaped concave portion (6) to be fitted with the second member is spin-welded to the outer peripheral surface of the boss (2), and the connecting member (3) is formed. The clip (10) is connected to the connecting portion (9), and the clip (10) is inserted into and engaged with the mounting hole (17) of the mounting object (16), thereby forming the synthetic resin molded product (1). The above-mentioned mounting object (16)
A mounting structure for a synthetic resin molded product, wherein the mounting structure is attached to a member. 2. A synthetic resin molded product (1) is inserted into and engaged with a mounting hole (17) of an object (16) through the clip (10). In the mounting structure for mounting the synthetic resin molded article (1),
A cylindrical or cylindrical mounting boss (2) is integrally protruded thereon, and a circular or ring-shaped concave portion (6) fitted to the boss (2) at the base end side of the clip (10). And the inner peripheral surface of the concave portion (6) is spin welded to the outer peripheral surface of the boss (2), and the clip (10) is attached to the object (16).
The synthetic resin molded product (1) is attached to the object (16) by being inserted into and engaged with the mounting hole (17).