JP2582633B2 - Locking clips for automotive window moldings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention secures a glass fitted into a window of an automobile to an edge of an opening, and also covers a gap between the opening and the glass. Locking clip for stopping a window molding that also serves as a decoration for use.

[Prior art] The glass housed in the front and rear windows of automobiles generally covers the surrounding area with moldings to stabilize the glass and cover the gaps. However, in the case of window moldings made of synthetic resin, One that is used solely between the window opening and the glass and directly fixes the glass to the window opening, and a retaining clip is attached to the window opening in advance, and this clip is used as a scaffold to Some are inserted into the gaps and are fixed.

The present invention relates to an improvement in a locking clip used in a window molding according to the latter type, and more particularly to an improvement in a locking clip formed by extruding a synthetic resin into a material, similarly to the molding.

The locking clip made of synthetic resin has the advantage that it can be easily fixed along the curved surface even at a bent part such as the corner of the window opening because the rigidity can be arbitrarily selected, but with such flexibility. Locking clips have the drawback of weakly expanding and contracting to heat.

As is well known, this type of locking clip made of synthetic resin is extruded in a molten state, but is placed in a state where it is easily deformed by stress and strain at the time of molding, but is in a place where it is exposed to direct sunlight in use. Therefore, it is used under extremely bad conditions where it is extremely heated due to solar heat in addition to changes in temperature.

For this reason, conventional locking clips are deformed due to stress and strain during molding, and wrinkles are generated in the middle of their length due to thermal expansion during use, impairing the appearance or peeling from the window opening to provide a locking function. There was a problem of losing.

In order to solve these problems, there has been proposed an invention in which a steel wire core material is buried integrally during extrusion molding of the locking clip to suppress expansion and contraction of the locking clip. The thermal expansion and contraction of the clip could not be completely suppressed due to poor familiarity with the clip main body.

For example, Japanese Patent Application Laid-Open No. 63-68421 discloses a technique for filling a difference in the thermal expansion coefficient between a synthetic resin locking clip main body and a steel wire core material in a molding closely related to this kind of locking clip. No. has been proposed earlier.

However, when this is applied to a locking clip, it is necessary to perform special pre-processing on the core material in advance, and the insert of this core material increases rigidity and flexibility, which is one of the characteristics of synthetic resin When it is fixed to the window opening, there is a problem that the adhesiveness is impaired especially at the corners and the like and the film is peeled off.

In addition, in the case of the locking clip, a synthetic resin is used as a material, but polyvinyl chloride is generally selected from the viewpoint of moldability, cost, etc.When inserting a steel wire core material into this, it is There is a drawback in that molding distortion is generated, which forms irregularities on the surface and makes the adhesion of the adhesive tape to the window opening unstable.

[Problems to be Solved by the Invention] The present invention has been developed in order to improve the problems in view of the above-mentioned various problems in embedding a core material for preventing expansion and contraction inside the main body of the locking clip. The present invention is to improve the formability of embedding a core material in a main body of a locking clip formed of a polyvinyl chloride material into a strip shape, and to lock the clip by using the core material after embedding. The flexibility of the main body is not impaired, and the occurrence of unevenness due to the molding strain that appears on the main surface of the clip due to the insert of the core material is prevented, and the bonding surface facing the window opening of the car is smooth and bonded. Facilitates the fastening work with the agent,
In addition, the fastening state is stabilized, and furthermore, the core material to be embedded is integrated with the clip-based polyvinyl chloride, so that the expansion-contraction deformation of the clip-based body due to thermal expansion and contraction can be reliably prevented. is there.

Means for Solving the Problems Based on the above object, the present invention is based on the above object, and forms a belt-shaped clip main body from a material made of polyvinyl chloride, and has one or a plurality of locking projections for hanging a molding on one surface thereof. In a locking clip provided with a strip, a glass fiber for preventing expansion and contraction along the thick portion of the base end portion extending the locking ridge inside the clip main body over the entire length thereof. A core material is embedded.

The core material may be buried one by one at the extended base end of one locking ridge, and furthermore, a plurality of core materials may be buried at a plurality of locations along the plurality of locking ridges to form a clip. May be suppressed over the entire width direction.

In particular, embedding a plurality of core materials in a dispersed manner not only can reliably suppress expansion and contraction due to heat, but also can effectively prevent the occurrence of molding distortion by reducing the thickness of each core material.

[Operation] The present invention embeds the glass fiber core material over the entire length along the length direction of the clip main body as described above,
When heated and expanded by thermal expansion due to temperature rise, direct sunlight, etc., the glass fiber core material with small coefficient of thermal expansion and low elongation will suppress this, and glass fiber Is composed of a collection of long fibers,
Since the material polyvinyl chloride penetrates and integrates between these fibers, it can be reliably suppressed during thermal expansion of the clip. Further, the glass fiber is excellent in stabilization of the product shape because it is familiar with the synthetic resin and generates much less molding distortion than the metal material.

And, since the glass fiber has flexibility and can be arbitrarily bent, it does not prevent the flexibility of the clip main body,
Accordingly, the bent portion of the window opening, particularly, the bent surface of the corner portion is closely followed and closely adhered, and the bonding state by the adhesive can be stabilized.

Hereinafter, features of the present invention will be described in detail based on the illustrated embodiment, and other features will be clarified together.

FIG. 1 is an enlarged side view of a locking clip according to the present invention. FIG. 2 is an explanatory perspective view showing a mutual relationship before a molding is fixed to a window opening of an automobile. The figure is a longitudinal sectional view showing a use state, wherein reference numeral 1 denotes a locking clip according to the present invention, 2 denotes an automobile window opening for directly fastening the locking clip, and 3 denotes a locking clip. This is a molding that is inserted and fixed between the window opening and the glass 4 accommodated in the opening through the opening.

The locking clip 1 is made of polyvinyl chloride as the main body 1a
Is formed in a thin strip, and both side edges 1b and 1c are bent to match the curved surfaces of the inner and outer edges of the upright wall 5 of the window opening 2. On one surface facing the molding 3, three locking projections 6 are provided in parallel with each other in a parallel manner over the entire length thereof. A core member 7 made of glass fiber for preventing expansion and contraction is buried in the thickened portion of the base end portion 6a along the entire length along the length direction.

The locking clip 1 is formed by extruding the main body into a strip shape, and at the same time, each locking ridge 6 is extended, and at the same time, a core material 7 is inserted along the base end 6a having the above-mentioned thickness. The core material 7 made of a bundle of many long fibers is integrally buried in the main body in accordance with polyvinyl chloride.

It is needless to say that the glass fiber core material 7 used here is limited to a thickness not exceeding the thickness of the main body 1a as shown in the figure, but the embedding location, that is, the number of the core material 7 is arbitrary in implementation. Selected. Of course, it is needless to say that, in order to prevent expansion and contraction of the main body, it is preferable to disperse and dispose it evenly over the entire width.

The locking clip 1 formed as described above is coated with an adhesive 8 on one side opposite to the side where the locking ridge 6 is projected, or a double-sided adhesive tape is adhered thereto, and the upright wall portion of the window opening is inserted through this. 5 is adhered and fixed.

FIG. 3 shows a state in which the molding 3 is mounted via the above-mentioned locking clip 1, and after being fixedly adhered to the upright wall 5 with an adhesive 8, the glass 4 is then attached to the window opening 2.
And the lower surface of the peripheral portion is pressed and bonded to the adhesive 9 applied to the edge portion 2a. Before the adhesive is solidified, the leg 3a of the synthetic resin molding 3 is inserted through the gap between the upright wall 5 and the peripheral edge of the glass, and the leg end is pressed into the adhesive 9, and at the same time, the folded shape is formed. The locking claw 3b provided on the lower surface of the peripheral edge of the glass and the locking piece 3c extending in the opposite direction to the locking claw 3b are locked on the locking ridge 6 of the locking clip, and The fastening is completed and the gap between the glass and the window opening is covered.

As described above, the locking clip of the present invention is adhered to the upright wall 5 of the window opening through the above-mentioned adhesive. Since the core 7 buried in the corner portion of the window opening is made of glass fiber and is flexible, it is bent together with the main body 1a and firmly adheres to the bent surface. On the other hand, since the core material itself does not have a repulsive force received from the core material, a stable fixed state without peeling can be obtained.

[Effect of the Invention] As described in detail in the above embodiments, the locking clip of the present invention expands by heating and expands in the length direction due to the small thermal expansion coefficient of the glass fiber core material embedded in the main body. The glass fiber core material is flexible and freely bends, and the curved portion of the window opening follows the clip main body and bends. However, it is completely adhered and does not hinder the fixation by the adhesive or the adhesive, and has no repulsive force after the fixation, so that a stable fixation state can be obtained without acting in a peeling direction. .

The glass fiber core material to be buried is well adapted to the molten polyvinyl chloride that forms the main component at the time of molding and suppresses molding distortion to a small extent. While the expansion and contraction of the clip main body can be completely suppressed, this core material can be minimized in molding distortion generated at the time of extrusion molding because the core material is embedded particularly along the base end portion extending the locking ridge, As a result, the product shape can be stabilized, and in particular, irregularities appearing on the main surface can be suppressed, and the adhesive surface of the window opening to the upright wall can be formed as a smooth surface. There is an advantage that completeness of adhesion can be expected and extremely stable fixation can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a locking clip according to the present invention. FIG. 2 is an exploded perspective view showing a mutual positional relationship before use.
The figure is a longitudinal sectional view for explaining a use state. DESCRIPTION OF SYMBOLS 1 ... Locking clip, 1a ... Locking clip main body 2 ... Window opening, 3 ... Molding 4 ... Glass, 5 ... Standing wall part 6 ... Locking ridge, 7 ... Core material

Claims (1)

(57) [Claims] 1. A belt-shaped main body (1a) is extruded from a polyvinyl chloride material, and one or more molding locking projections (6) are formed on one surface thereof along the longitudinal direction. In a locking clip (1) for an automobile window molding formed over the entire length, the base (1a) has a thickened portion formed by extending the locking ridge (6) on the main body (1a). A locking clip for a molding for an automobile window, wherein a core member (7) made of glass fiber for preventing expansion and contraction is embedded along the entire length (6a).