JPH0356124Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automobile molding that is attached to the side outer panel of an automobile for the purpose of protecting the automobile body, creating a design effect, or the like.

[Prior Art] Conventionally, automotive moldings are generally elongated bodies molded from rubber, plastic, etc., such as body side guard molding 1 attached to the outer side panel of the vehicle body, as shown in FIG. There is. To attach this molding to the outer panel of the vehicle body, adhesive or double-sided adhesive tape is used to attach it. However, since this molding is generally soft and long, it is not easy to decide where to attach it.

In order to facilitate positioning, Japanese Patent Laid-Open No. 58-221739 discloses a molding in which a guide pin is provided protruding from the adhesive surface (FIGS. 6 to 8). This molding includes, for example, guide pins 101 provided at both ends of the molding 100,
Positioning can be performed by fitting the guide pin 101 into a positioning hole 201 bored in the vehicle body outer plate 200. Therefore, positioning can be done easily and reliably. Furthermore, when pasting with adhesive, the molding is fixed by the guide pin, which prevents the molding from slipping off before the adhesive hardens. It's also effective.

[Problems to be Solved by the Invention] As shown in FIGS. 6 and 7, in order to attach the molding 100 having the conventional guide pin 101 described above to the vehicle body outer panel 200, first
Adhesive layer 3 such as adhesive or double-sided tape on the adhesive surface of 0
00, and the guide pin 101 is inserted into the positioning hole 20.
1 and perform positioning. Next, the molding 100 was pressed against the outer panel 200 from one end to the other, thereby bonding the molding 100 to the outer panel 200. However, if the pitch of the positioning hole 200 and the pitch of the guide pin 101 are slightly misaligned due to manufacturing errors,
Alternatively, if the attachment position is slightly shifted, as shown in FIG. 8, the guide pin 101 is fixed in contact with the circumferential wall of the positioning hole 201, so compressive stress is applied to the molding 100. In some cases, a part of the molding 100 swells and spoils its appearance.

The present invention provides a molding that solves this problem.

[Means for Solving the Problems] The automotive molding of the present invention has an adhesive surface to be pasted on the surface of an automobile outer panel, and a positioning hole that protrudes from the adhesive surface and is fitted into a positioning hole drilled in the automobile outer panel. A molding for an automobile has a positioning guide pin that extends from the adhesive surface and has a diameter smaller than the diameter of the positioning hole, and a neck that extends from the neck and has a diameter larger than the diameter of the neck and can fit into the positioning hole. The neck part is characterized by having a length such that when the adhesive surface is attached to the automobile exterior panel, the neck protrudes toward the back side of the automobile exterior panel and the head does not interfere with the automobile exterior panel.

The molding of the present invention has an adhesive surface and a guide pin. Here, the adhesive surface refers to the surface that is attached to the outer panel of the vehicle body using an adhesive, double-sided adhesive tape, or the like. Generally, it corresponds to the back side of the molding body.

The molding body can be formed from rubber, plastic, etc. by extrusion molding or the like, and may be the same as conventional molding bodies.

Guide pins are provided protruding from the bonding surface, and generally two guide pins are provided at both ends of the molding, but if the molding is long, three or more guide pins may be provided at appropriate intervals. This guide pin can be formed from a conventional material such as plastic, and is provided by being molded integrally with the molding or by being fixed to the molding body by adhesive or the like, as in the past.
Further, if the molding has an end cap at the end, a guide pin may be provided protruding from the end cap.

The biggest feature of this invention is the shape of the guide pin. That is, as shown in FIG. 1, for example, the guide pin is composed of a neck 31 continuous to the adhesive surface of the molding, and a head 32 continuous to the neck 31.
The maximum diameter of the neck portion 31 is made smaller than the maximum diameter of the head portion 32.

Conventional guide pins have been cylindrical or bullet-shaped. Therefore, since the base is fixed in contact with the peripheral wall of the positioning hole, compressive stress is applied to the molding body, which may cause swelling. Therefore, in the present invention, the maximum diameter of the neck of the guide pin that comes into contact with the peripheral wall of the positioning hole is made smaller than the maximum diameter of the head.
This prevents compressive stress from acting on the molding body. The shape of the head of the guide pin can be selected from various shapes such as a circular cross section, a square cross section, and an equilateral triangular cross section. The positioning hole provided in the outer panel of the vehicle body is generally circular, and the maximum diameter of the guide pin head is
In order to increase positioning accuracy, it is preferable that the diameter be approximately the same as the diameter of the positioning hole. That is, if the cross section is circular, it is desirable that its diameter be approximately the same as the diameter of the positioning hole, and if the cross section is polygonal, its diagonal line is preferably approximately the same as the diameter of the positioning hole.

The shape of the neck of the guide pin is not particularly limited as long as its maximum diameter is smaller than the maximum diameter of the head. For example, the cross section may be circular, or if the head is polygonal, the corners may be cut out. Further, the difference in diameter is appropriately determined depending on manufacturing accuracy, etc., but it is usually sufficient to set it to about 2 mm. Note that the length of the neck needs to be longer than the distance from the adhesive surface of the molding to the back surface of the skin when the molding is attached to the skin, but it is sufficient to make it slightly longer. . If it is shorter than this, the head will come into contact with the peripheral wall of the positioning hole during pasting, and the effect of the present invention will not be obtained.

The number of guide pins is generally 2, as in the past.
or more. Positioning is impossible with just one piece. If two are provided, it is best to use them at both ends of the molding. Furthermore, providing three or more moldings is particularly effective in the case of long moldings. Although it is preferable to provide neck portions on all of the guide pins, only one of the guide pins, which serves as a reference position when pressing and pasting, may have a conventional shape.

[Operations and Effects of the Invention] In the molding of the present invention, the guide pin has a neck continuous to the adhesive surface and a head having a maximum diameter larger than the neck. This head first fits into the positioning hole, allowing for accurate positioning as in the conventional case. In this state, the molding is adhered to the outer panel by pressing the molding against the outer panel in order from one end to the other. Therefore, the molding is reliably held in a defined position by the guide pin head until it is bonded.

In addition, if the pitch of the positioning hole and the guide pin are slightly misaligned due to manufacturing errors, or if the pasting position is slightly misaligned, please check the alignment between the neck of the guide pin and the positioning hole. The gap with the peripheral wall eliminates the misalignment. Therefore, compressive stress is prevented from acting on the molding body, and the molding can be attached with high precision without causing problems such as swelling.

[Example] A description will be given below based on specific examples.

(Example 1) FIG. 1 shows an automotive molding according to an embodiment of the present invention. This molding is composed of a rubber molding main body 2 and two resin guide pins 3 that are bonded and fixed to the back surfaces (adhesive surfaces) of both ends of the molding main body 2.

The guide pin 3 has a substantially cylindrical shape and is composed of a neck 31 continuous to the molding body 2 and a head 32 coaxially continuous to the neck 31. and neck 3
The diameter of the head 32 is 2 mm smaller than the diameter of the head 32.

A case will be described in which the molding of this embodiment configured as described above is attached to the outer panel of a vehicle body.

First, an adhesive layer 4 is provided on the back surface of the molding body 2 using an adhesive, double-sided tape, or the like. Then, as shown in FIG. 2, this molding is positioned at the attachment position on the vehicle body, and the guide pins 3 on both sides are fitted into the positioning holes 51 of the outer panel 5. This allows for reliable positioning. Note that if the pitch of the two positioning holes 51 and the pitch of the two guide pins 3 are slightly misaligned or the pasting position is slightly misaligned, as shown in FIG. Since the head 31 of the molding 3 contacts the circumferential wall of the positioning hole 51, compressive stress is applied to the molding body 2, which may cause swelling.

Next, by the method shown in FIG. 6, the molding body 2 is pressed against the outer panel 5 from one end to the other end. Then, as shown in FIG. 3, the head 31 of the guide pin 3
protrudes to the back side of the outer plate 5, and the neck portion 32 is located in the positioning hole 51. Here, since the diameter of the neck portion 32 is smaller than the diameter of the head portion 31, a gap is formed between the neck portion 32 and the peripheral wall of the positioning hole 51. Therefore, even if compressive stress is generated in the molding body 2, the stress is almost completely eliminated as the neck portion 32 moves within the positioning hole 51. This eliminates problems such as swelling on the molding surface.

(Embodiment 2) FIG. 4 shows the main parts of a molding according to another embodiment of the present invention. In this molding, the guide pin 6 has a square prism-shaped head 62 having a square pyramid at its tip, and a head 62 having a square pyramid at its tip.
A neck portion 61 having a substantially octagonal shape with a corner portion 63 cut out.
This is the same as in the first embodiment except that it is composed of and.

This guide pin 6 is fitted into a circular positioning hole, and during positioning, the corner 63, which is the maximum diameter of the head 61, comes into contact with the peripheral wall of the positioning hole. When pasting, the neck 6 with the corner 63 cut out
2 ensures a gap between the guide pin 6 and the circumferential wall of the positioning hole, and provides the same effect as the molding of the first embodiment.

[Brief explanation of the drawing]

Figures 1 to 3 relate to a molding according to an embodiment of the present invention. Figure 1 is a perspective view of the main parts thereof, Figure 2 is a sectional view showing the positioning state, and Figure 3 is the pasting. It is a sectional view showing a later state. FIG. 4 is a perspective view showing a guide pin protrusion of a molding according to another embodiment. FIG. 5 is a side view of an automobile equipped with a molding. Figures 6 to 8 relate to conventional moldings; Figure 6 is an explanatory cross-sectional view showing how to attach the molding, Figure 7 is a cross-sectional view showing the positioning state, and Figure 8 is the pasting method. It is a sectional view showing a later state. 1...Mall, 2,100...Mall body,
3,6,101...Guide pin, 4,300...
Adhesive layer, 5,200...Vehicle body outer plate, 31,61...
...Neck, 32,62...Head, 51,201...
Positioning hole.

Claims (1)

[Scope of Claim for Utility Model Registration] An adhesive surface that is attached to the surface of an automobile outer panel; a positioning guide pin that protrudes from the adhesive surface and fits into a positioning hole drilled in the automobile outer panel;
In the automotive molding, the guide pin has a neck extending from the adhesive surface and having a diameter smaller than the diameter of the positioning hole, and a head extending from the neck and having a diameter larger than the diameter of the neck and having a diameter that can fit into the positioning hole. The neck portion has a length such that when the adhesive surface is attached to the automobile exterior panel, the neck portion protrudes toward the back side of the automobile exterior panel and the head does not interfere with the automobile exterior panel. Features a molding for automobiles.