JPH0640032Y2 - Terminal structure of automobile mall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an automobile molding that is mounted on a side surface of a vehicle for decoration and absorption of external force, and in particular, a terminal member formed by injection molding on a terminal portion of a molding body. The present invention relates to a terminal structure of an automobile mall, in which a metal is fixed.

[Prior Art] As a conventional terminal molding method and structure for an automobile molding of this type, a technology disclosed in JP-A-63-151423 can be mentioned.

Further, as a conventional terminal structure of an automobile mall, the techniques shown in FIGS. 5 and 6 are also known.

FIG. 5 is a rear view showing a terminal structure of a conventional automobile molding, and FIG. 6 is a sectional view taken along the line CC of FIG. 5 showing a state of being mounted on a vehicle body.

In the figure, 1 is a molding body formed by extruding a synthetic resin material such as polyvinyl chloride.
The recessed groove 2 is formed so as to extend in the longitudinal direction. The front side of the molding body 1 is a design surface 3, and a decorative metal tape 4 is embedded in the lower portion of the design surface 3.

A terminal member 5 is provided at the terminal portion of the molding body 1 by injection molding a synthetic resin material such as polyvinyl chloride. The terminal member 5 is composed of a terminal piece 6 fixed to the end surface of the molding body 1 and an adhesive support base 7 fixed to the bottom surface of the recessed groove 2 of the molding body 1.
The adhesive support pedestal 7 is formed in a slender shape along the concave groove 2, and an inclined portion 8 is extendedly formed on the side opposite to the end piece. Reference numeral 9 is a runner for connecting the terminal piece 6 and the adhesive support pedestal 7, and reference numeral 10 is a hot water stopper provided continuously to the inclined portion 8 of the adhesive support pedestal 7.

Then, as shown in FIG. 6, the molding body 1 is mounted on the vehicle body 12 of the automobile through the double-sided adhesive tape 11 on the back surface thereof. Further, in order to prevent the terminal portion of the molding body 1 from rising, the adhesive support base 7 of the terminal member 5 is provided.
Is bonded to the vehicle body 12 via an adhesive 13 such as a urethane sealer.

In the conventional terminal structure of the automobile molding configured as described above, the adhesive support pedestal 7 contracts immediately after the injection molding of the terminal member 5, but the inclined portion 8 is formed at the inner end of the adhesive support pedestal 7.
Since the inclined portion 8 is provided, the stress at the time of contraction can be dispersed and absorbed, and the occurrence of sink marks on the design surface 3 of the molding body 1 can be prevented.

[Problems to be solved by the invention] However, according to the conventional terminal structure of the automobile mall,
Since the inclined portion 8 for preventing sink marks is extendedly formed on the adhesive support pedestal 7, as shown in FIG. 5, the adhesive support pedestal 7 is formed.
Not only becomes longer and the molding die for injection molding the terminal member 5 becomes longer, but the amount of resin also increases by the amount corresponding to the inclined portion 8, and the flexibility of the terminal portion of the molding body 1 is impaired. There was an inconvenience.

Further, since the conventional adhesive support pedestal 7 is not provided with a portion for allowing the adhesive to enter therein, an extra adhesive 13
In order to prevent the adhesive from protruding from the upper and lower edges of the molding body 1, it is necessary to reduce the width of the adhesive support pedestal 7 and secure gaps 14 above and below the adhesive absorption base. This has also been a cause of increasing the total length of the adhesive support base 7.

Therefore, the object of the present invention is to reduce the size of the molding die, reduce the amount of resin, and ensure the flexibility of the terminal portion of the molding body, and at the same time, prevent the occurrence of sink marks, and cooperate. Another object of the present invention is to provide a terminal structure of an automobile molding, which can obtain various adhesive strengths and can further prevent the adhesive from protruding.

[Means for Solving the Problems] In order to solve the above problems, the terminal structure of a molding for an automobile according to the present invention is formed by extrusion molding a molding body having a recessed groove on the back surface, and the molding terminal portion of the molding body is formed. A terminal member is molded by injection molding, and the terminal member is composed of a terminal piece fixed to the end face of the molding body and an adhesive support pedestal fixed to the bottom surface of the recessed groove of the molding body. A plurality of ribs are provided at the end of the agent support base on the side opposite to the one end so as to gradually reduce the volume forming the adhesive support base.

[Operation] According to the terminal structure of the automobile molding of the present invention, a plurality of ribs are provided at the end of the adhesive support pedestal on the side opposite to the terminal, and the adhesive enters the recesses between the ribs. Therefore, the adhesive support pedestal can be strongly bonded to the vehicle body through the large bonding area. Therefore, the total length of the adhesive support pedestal can be short, the molding die for injection molding the terminal member can be downsized, the amount of resin can be reduced, and yet the terminal portion of the molding body can be provided with sufficient flexibility. You can

Further, since the wall thickness of the inner end portion of the terminal member becomes thin due to the presence of the concave portion, the stress due to the contraction of the adhesive support pedestal immediately after the injection molding is absorbed in this portion, whereby
There is no risk of sink marks on the design surface of the molding body. Furthermore, since the excess adhesive on the adhesive support pedestal enters the recess, it is possible to reliably prevent the adhesive from protruding from the molding body.

[Embodiment] An embodiment embodying the present invention will be described below with reference to the drawings.

FIG. 1 is a rear view showing a terminal structure of an automobile molding according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1 showing a mounting state on a vehicle body, and FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG. 4, and FIG. 4 is a rear view showing a modified example of the adhesive support base of the present invention. In the figure, the same reference numerals as those of the conventional example indicate the same or corresponding components as those of the conventional example, and the duplicate description will be omitted here.

In the automobile molding of the present embodiment, the metal reinforcing tape 15 is embedded over the entire length of the bottom surface of the recessed groove 2 during extrusion molding of the molding body 1. The terminal piece 6 of the terminal member 5 fixed to the end surface of the molding body 1 is formed with a plurality of recesses 16 into which the adhesive 13 enters in order to strengthen the adhesion of the terminal piece 6 to the vehicle body 12. ing.

On the other hand, the adhesive support base 7 of the terminal member 5 in the present embodiment.
Is formed to be shorter and wider than the conventional example, and the inclined portion 8 (third part) is formed on the inner end portion of the adhesive support base 7.
(See the figure) is formed. A plurality of right-angled triangular ribs 18 are erected on the inclined portion 8 via recesses 17 into which the adhesive 13 enters so as to extend like comb teeth in the longitudinal direction of the molding body 1. The protruding surface of the rib 18 is flush with the protruding surface of the adhesive support pedestal 7, and the adhesive support pedestal 7
The protruding surface, that is, the adhesive adhering surface is set slightly lower than the back surface of the molding body 1.

In the terminal structure of the automobile mall of the present embodiment configured as described above, the mall body 1 is attached to the vehicle body 12 of the automobile through the double-sided adhesive tape 11 on the back surface thereof as shown in FIG. To be done. In order to prevent the terminal portion of the molding body 1 from rising, the terminal piece 6 of the terminal member 5 is
The adhesive support pedestal 7 is adhered to the vehicle body 12 via the adhesive 13.

At this time, since the adhesive agent 13 attached on the terminal piece 6 enters the recessed portion 16, the terminal piece 6 has a large bonding area, and the vehicle body 12
In addition to being firmly adhered, the excess adhesive can be prevented from protruding. Further, since a part of the adhesive 13 adhered on the adhesive support pedestal 7 enters into the recess 17, the adhesive support pedestal 7 is strongly adhered to the vehicle body 12 through a large adhesive area as a whole, and It is also possible to prevent excess adhesive from protruding from the molding body 1. Therefore, in this embodiment, the gaps 14 above and below the adhesive support pedestal 7 can be made narrower than in the conventional case, and the width of the adhesive support pedestal 7 can be increased by that amount to increase the width of the adhesive support pedestal 7. The total length of can be shortened.

In this way, the terminal structure of the automobile mall of this embodiment is
The molding main body 1 having the recessed groove 2 on the back surface is molded by extrusion molding, and the terminal member 5 is molded on the end portion of the molding main body 1 by injection molding.
A terminal piece 6 fixed to the end surface of the mold, and an adhesive support pedestal 7 fixed to the bottom surface of the recessed groove 2 of the molding body 1,
An inclined portion 8 is provided at the inner end of the adhesive support base 7, and a plurality of ribs 18 are erected on the inclined portion 8 via a recess 17 into which the adhesive 13 enters.

Therefore, according to the terminal structure of the automobile molding of the present embodiment, the plurality of ribs 18 are provided on the inclined portion 8 at the inner end of the adhesive support pedestal 7 and are bonded to the recesses 17 between the ribs 18. Agent
Since 13 enters, the adhesive support pedestal 7 can be strongly bonded to the vehicle body 12 through a large bonding area. Therefore, the total length of the adhesive support pedestal 7 may be short, and the terminal member 5
The molding die for injection molding can be downsized, the amount of resin can be reduced, and sufficient flexibility can be imparted to the end portion of the molding body 1.

Further, since the wall thickness of the inner end portion of the terminal member 5 becomes gradually thin due to the existence of the inclined portion 8, the stress due to the contraction of the adhesive support pedestal 7 immediately after the injection molding is dispersed and absorbed in this portion, This eliminates the possibility of sink marks on the design surface 3 of the molding body 1. Furthermore, since the excess adhesive 13 on the adhesive support pedestal 7 enters the recess 17 and does not protrude from the molding body 1, there is no fear of impairing the design of the automobile molding.

By the way, in the above-described embodiment, the plurality of ribs 18 are provided on the inner end of the adhesive support pedestal 7 in the shape of comb teeth, but the present invention is not limited to this, and as shown in FIG. Even when a plurality of ribs 18 are provided in a grid pattern on the inner end portion of the adhesive support base 7 and the recesses 17 are provided between the ribs 18, the same effect as in the above embodiment can be obtained.

Further, in the above embodiment, the inclined portion 8 is formed on the inner end portion of the adhesive support pedestal 7 and the plurality of ribs 18 are erected on the inclined portion 8, but the present invention is not limited to this. Even if the operation is performed by omitting the inclined portion 8, the resin amount at the inner end portion of the adhesive support pedestal decreases as long as there are recesses between the ribs, so that the stress during resin contraction is reduced. Thus, the occurrence of sink marks can be suppressed. However, when the rib 18 is erected on the inclined portion 8 as in the above-described embodiment, it is possible to more reliably prevent the occurrence of sink marks due to the stress dispersion action of the inclined portion 8.

Further, in the above embodiment, the rib 18 is provided only on the inner end portion of the adhesive support pedestal 7, but the rib may be provided over the entire adhesive support pedestal if necessary.

[Advantage of Invention] As described above, the terminal structure of the automobile mall of the present invention is
A molding body having a recessed groove on the back surface is formed by extrusion molding, and a terminal member is formed by injection molding at the terminal portion of the molding body, and the terminal member is fixed to the end surface of the molding body and a molding piece. It is composed of an adhesive support pedestal fixed to the bottom surface of the concave groove of the main body, and the volume forming the adhesive support pedestal is gradually reduced by a plurality of ribs at the end of the adhesive support pedestal on the side opposite to one end. Therefore, the adhesive support pedestal of the terminal member can be strongly adhered to the vehicle body through a large adhesive area. As a result, the total length of the adhesive support pedestal can be short, and the molding die for injection molding the terminal member can be performed. Can be downsized, the amount of resin can be reduced, and moreover, sufficient flexibility can be given to the terminal part of the mall body,
In addition, the stress due to resin shrinkage is absorbed by the inner end of the terminal member, and sink marks on the molding body can be reliably prevented. Furthermore, excess adhesive on the adhesive support pedestal is allowed to enter the recess, This has the effect of preventing the adhesive from squeezing out.

[Brief description of drawings]

FIG. 1 is a rear view showing a terminal structure of an automobile molding according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1 showing a mounting state on a vehicle body, and FIG. FIG. 4 is a back view showing a modified example of the adhesive support pedestal of the present invention, FIG. 5 is a back view showing a terminal structure of a conventional automobile molding, and FIG. 6 is a vehicle body. 5C-C showing the state of attachment to the
It is a line sectional view. In the figure, 1: molding body, 2: concave groove 5: terminal member, 6: terminal piece 7: adhesive support pedestal, 13: adhesive 17: concave portion, 18: rib. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A molding body formed by extruding a synthetic resin material and forming a recessed groove on the back surface; an injection molding of a synthetic resin material; a terminal piece fixed to an end surface of the molding body; And a terminal member formed by continuously forming an adhesive support pedestal fixed to the bottom surface of the recessed groove, wherein the end portion of the adhesive support pedestal on the side opposite to the terminal end is adhesive-supported by a plurality of ribs. A terminal structure for an automobile mall, characterized in that a volume forming a pedestal is gradually reduced.