JPH0536766Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a garnish used to protect, decorate, and seal flanges, corners, joints, protrusions, etc. of automobile bodies, furniture parts, etc. It concerns Ustrip.

Prior Art Generally, conventional garnish strip 7 (first
0 and 11) are a plurality of strips 1 extending in the width direction, as shown in FIGS. 8 and 9.
are arranged at regular intervals in the longitudinal direction, and the core metal 3 is punched out from a metal strip plate in which the widthwise central portions of the strips 1 are integrally connected at one or more joints 2. As shown in FIGS. 10 and 11, the U is embedded in a belt-shaped covering material 4 made of synthetic resin or rubber having longitudinally extending protrusions 5, and the U While bent into a U-shape, target parts 6 such as flanges, corners, mating parts, and protrusions of automobile bodies, furniture parts, etc. are touched with opposing protrusions 5 on the inner surface of the U-shape. It is held in place to protect, decorate, and seal.

Problems that the invention attempts to solve However, the conventional garnish strip 7
In this case, like the other parts, the protrusion 5 is made of the same material as the coating material 4 made of synthetic resin or rubber for embedding the core bar 3, and is manufactured at the same time by the so-called extrusion coating method. Therefore, after long-term use, the force of the protrusions 5 to clamp the target area 6 decreases due to partial stress relaxation or deterioration of the coating material 4, and the garnishing strip 7 may separate from the target area 6. However, there were times when the purpose could not be achieved.

On the other hand, in order to increase the clamping force, the garnishing strip 7 is made of a highly rigid covering material 4.
The resistance when attached to the target site 6 was large, making assembly difficult, and cracks sometimes occurred in the covering material 4 when bending the cross section into a U-shape. Further, when the garnishing strip 7 is attached to the target part 6 which has an undulation, it may be difficult to make it follow the undulation if the coating material 4 has high rigidity.

It is an object of the present invention to provide a garnishing strip which eliminates the above-mentioned drawbacks of the prior art.

Means for solving the problems In order to achieve the above object, this invention provides a method for manufacturing a gypsum-like material, comprising: a plurality of rectangular pieces extending in a width direction and arranged in a longitudinal direction at a fixed interval; a core bar punched out from a metal strip so that the widthwise center portions of the rectangular pieces are integrally connected at one or more joints; the core bar is embedded in a band-shaped covering material made of synthetic resin or rubber; the covering material is bent together with the embedded core bar so that the cross section is substantially U-shaped; and the covering material has two pairs of ridges extending in the longitudinal direction and facing each other; In the garnish strip, the core metal has first protrusions opposed to each other formed by bending each end portion in the width direction of each of the rectangular pieces, and second protrusions opposed to each other formed by cutting and raising a portion of each rectangular piece closer to the joint than each of the first protrusions, the first and second protrusions being embedded in each of the protrusions of the covering material, and holes formed in each rectangular piece by cutting and raising the second protrusions are filled with covering material.

Embodiment An embodiment of this invention will be described with reference to the drawings.

FIG. 1 is a plan view showing a core bar 13 of a garnish strip showing an embodiment of this invention, and FIG. 2 is a sectional view taken along the line A--A in FIG.

The core bar 13 has a plurality of strips 11 extending in the width direction arranged at regular intervals in the longitudinal direction, and the widthwise center portions of the strips 11 are joined together at one (or multiple) joints 12. It is punched out from a metal strip so that it connects to the Here, FIGS. 1 and 2
The core bar 13 shown in the figure is different from the core bar 3 of the conventional garnish strip 7, and each strip-shaped piece 11 thereof is different from the core bar 3 of the conventional garnish strip 7.
The first protrusion 17 is formed by bending each tip in the width direction of the joint part 1 than the first protrusion.
It has a second protrusion 18 formed by cutting and raising each of the strip-shaped portions closer to the second side.

Such a core bar 13 is continuously inserted into the introduction end of a crosshead die or an offset die of an extruder by a method known per se, and is made of synthetic resin or rubber extruded from the extruder in the die. The intermediate product 20 is embedded in the band-shaped covering material 14 as shown in FIG.

Furthermore, following the extrusion coating, an intermediate product 20
A concavo-convex pattern 23 (see FIGS. 3A and 10) for decoration or anti-slip purposes can be provided on the surface portion of the can. This unevenness can be carried out by carving unevenness on the lip of the die, or by pressing the surface portion of the intermediate product 20 with a metal roll having unevenness carved therein immediately after extrusion. It is also possible to print on the surface. Covering material 14
If the intermediate product 20 requires a crosslinking treatment, the intermediate product 20 is subsequently treated with heat or light.

Next, the coating material 14 constituting the intermediate product 20 is
Together with the core metal 13 embedded therein, the garnish strip 10 is bent so as to have a substantially U-shaped cross section, thereby obtaining the garnish strip 10 as shown in FIG.

The covering material 14 of the garnish strip 10 thus formed has two pairs of protrusions extending in the longitudinal direction thereof and facing each other.
In FIG. 4, the protrusions of one pair are marked with the numeral 15.
The other pair of protrusions are shown with reference numeral 16. Furthermore, as shown in FIG.
The protrusions 17 face each other, the other pair of second protrusions 18 also face each other, and these protrusions 17,
18 are embedded in each of the protrusions 15 and 16 of the covering material 14, respectively. Moreover, when the core bar 13 is cut and bent as described above to form the second protrusion 18, the hole 19 (FIG. 3, FIG. 3A) formed in each strip-shaped piece 11 is thereby Covering material 14
is filled.

This garnishing strip 10 has its open end attached to the target area 6 as shown in FIG. The target region 6 is held between the two.

In the above embodiment, the intermediate product 20 is bent into a U-shape with a rounded base (the upper part in FIG. 4), but the base is flat as in the conventional example shown in FIG. It may also be bent into a U-shape similar to a U-shape. In this case, as shown in FIG.
1, or as shown in FIG. 7, if a continuous groove is provided in advance in the metal strip before punching, and the groove 22 is formed in the strip-shaped piece 11 to reduce the thickness, the strip can be bent at a predetermined position. The protrusions and protrusions on both sides can be opposed to each other at accurate positions.

Effects The garnish strip of this invention has the following effects.

The coating material has a pair of protrusions facing each other.
Since the garnish strip has a total of four strips, and a protrusion of the core metal is embedded in each of the protrusions, the garnish strip is stably and firmly attached to the target area, and does not sway due to external force. It does not move and does not leave the target area for long periods of time.

In addition, even if a material with low rigidity is used as the coating material, the protrusions of the core metal are embedded in the protrusions, so after long-term use, the protrusions may become partially weakened due to partial stress relaxation or deterioration of the coating material. The force for clamping the target part is reduced and the garnish strip does not come off from the target part.

Furthermore, if a material with low rigidity is used as the covering material, it will be easier to attach it to the target area, and even if the target area has a ridge, it can be assembled along the ridge.

Furthermore, in order to form the second protrusion, the holes in each strip that were created when the strip was partially cut and bent are also filled with the coating material, so they are bent into a U-shape. At the same time, it is possible to further suppress displacement of the coating material with respect to the core bar.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of a core bar of a garnish strip of this invention, and FIG.
FIG. 3 and FIG. 3A are cross-sectional views of an intermediate product in which the core bar of FIG. 2 is embedded in a covering material. FIG.
FIG. 4 is a cross-sectional view showing an example of the garnish strip of the present invention; FIG. 5 is a cross-sectional view showing the state in which the garnish strip of FIG. 4 is attached to a target part;
FIG. 6 is a plan view showing another embodiment of the core bar;
8 and 9 are cross-sectional views showing another embodiment.
The figure is a plan view of a conventional core bar, and Figs. 10 and 11 are cross-sectional views showing a state in which a conventional garnish strip is attached to a target part. 10... garnish strip, 11... rectangular piece, 12... joint, 13... core bar, 14...
...coating material, 15, 16...ribs, 17...first
Protrusion, 18...second protrusion, 19...hole.

Claims (1)

[Claims for Utility Model Registration] A plurality of strips extending in the width direction are arranged at regular intervals in the longitudinal direction, and the center portions of the strips in the width direction are joined together at one or more joints. A core metal punched out from a metal band plate so as to be connected is embedded in a band-shaped covering material made of synthetic resin or rubber, and the covering material and the core metal embedded therein have a substantially U-shaped cross section. In the garnishing strip, which is bent to form a shape, the covering material has two pairs of protrusions that extend in the longitudinal direction and are opposed to each other, First protrusions facing each other formed by bending each tip in the width direction of the piece, and mutually opposing first protrusions formed by cutting and bending each strip-shaped piece closer to the joint than each first protrusion. and a second protrusion facing each other, the first protrusion and the second protrusion are respectively embedded in each protrusion of the covering material, and formed into each strip-shaped piece by cutting and raising the second protrusion. A garnish strip characterized in that the holes formed in the strip are filled with a covering material.