JP3002805B2 - Weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a weather strip.

[0002]

2. Description of the Related Art Weather strips are used, for example, around the openings of automobile windows and doors to prevent water and dust from entering or to cut off sound. In general, elastic rubber, sponge rubber, or the like is used for the weather strip, and various shapes are available according to functions and intended uses.

FIG. 12 shows a conventional representative weather strip.
And will be described. In the drawing, a strip portion 1 formed on the upper and lower portions of the surface of a plate-shaped base surface 2, a head portion 3 formed on the upper end of the base surface 2, and a metal plate 10 provided on the back surface of the base surface 2 are shown. Are integrally formed by extrusion molding, and then the base surface 2 and the metal plate are pressed by a press machine.
10 are punched out to form cuts 11 at equal pitch intervals in the longitudinal direction of the base surface 2.

On the other hand, as shown in FIG. 13, an angle 12 is attached to a weather strip mounting portion (for example, an opening of an automobile door) of the base material 7, or the base material 7 and the angle 12 are integrally formed. Holes 13 into which the cut and raised portions 11 are inserted are formed in the weather strip mounting surface of the angle 12 at intervals corresponding to the pitch intervals of the cut and raised portions 11.

[0005] Then, as shown in FIG. 14, a cut-and-raised portion 11 provided on the weather strip is inserted into a hole 13 formed in an angle 12, and the inside of the head portion 3 is brought into close contact with the surface of the base material 7. While applying the strip to the substrate 7,
The cut-and-raised portion 11 is bent so as to be caulked so that the weather strip is attached to the opening of the base material 7.

[0006]

In the above conventional weather strip, when the substrate 7 and the angle 12 are separated, the angle 12 is used as a pre-process for attaching the weather strip to the substrate 7. 7 requires a work process, and it is difficult to mount the angle to a part having a complicated shape and a three-dimensional curve such as an opening of a door of an automobile. Therefore, there is a problem to be improved in terms of the efficiency of the operation of attaching the weatherstrip. Further, when the base 7 and the angle 12 are integrated, for example, when the base 7 is formed by a press machine, a press die for pressing the portion of the flange 12 has a complicated shape. Must be performed in a separate press step, and even when the base material 7 is injection-molded, for example, the mold has a complicated shape, and the molding and processing of the base material 7 requires a lot of cost and man-hours. There is a problem that needs to be improved in this regard.

Next, when the weather strip is attached to the base member 7, the cut-and-raised portion 11 is inserted into the hole 13 while the inside of the head portion 3 is kept in close contact with the surface of the base material 7. Since the head 11 must be bent so as to be crimped, the head 3 may rise from the surface of the base 7 depending on the fitting state between the cut-and-raised part 11 and the hole 13. In particular, when attaching the weatherstrip to a part having a complicated shape and a three-dimensional curve, such as an opening of an automobile door, the head 3 should be prevented from rising from the surface of the base material 7. However, it is difficult to insert the cut-and-raised portion 11 into the hole 13 and caulk the cut-and-raised portion 11, and there is a problem to be improved in workability. In addition, when the inner surface of the head 3 is not in close contact with the surface of the base material 7, not only the appearance is poor, but also water may enter through the gap to corrode the base material 7, and the appearance and corrosion There is a problem that needs to be improved.

When a long weather strip is to be attached, a large number of cuts and ridges 11 are also present. Therefore, the large number of cuts and ridges 11 may not match the holes 13 formed in the base material 7. Occurs. In particular, an angle 12 having a complicated shape and a three-dimensional curve, such as an opening of a door of a car, is provided on a weatherstrip.
It is difficult to drill holes 13 that match the 11 pitch intervals, and in some cases, the holes 13 must be drilled due to actual alignment, and there is a problem to be improved in terms of work efficiency. In such a case, it is conceivable to press and cut each time to position the hole 13 formed in the angle 12 of the base material 7 and to position the weather strip 11 in each case. It is unproductive to make the arrangement of the cut and raised 11 correspond to each time it changes, and there is a problem that needs to be improved in terms of productivity. Further, since the cut-and-raised portion 11 is formed by extruding the metal plate 10 integrally with the base surface 2 and then cut and raised by a press machine, a through-hole is also formed in the base surface 2 to impair the appearance and the penetration of the base surface 2. There is a problem that water and dust enter through the hole, and the function as a weather strip is impaired.

Further, in order to make the cut-and-raised portion 11, the metal plate 10
Are extruded integrally, so that the base surface 2 is rich in rigidity but inflexible. For example, it is difficult to mount the base portion 2 to a mounting portion having a complicated shape or a curved surface. There's a problem.

An object of the present invention is to provide a weather strip which solves the above-mentioned problem by eliminating parts corresponding to the above-mentioned conventional angles and eliminating cutting and raising.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a strip portion formed on a base surface of a weather strip and a holding portion formed on a base surface opposite to the surface on which the strip portion is formed. Part, and a head formed by providing a gap for inserting a base material between the holding part, and a rib formed on the base material along the direction of insertion into the gap on the holding part. Are provided with slits for inserting the holes.

The weather strip can be formed integrally with a synthetic resin. Further, the strip portion side may be formed by extruding two layers of soft synthetic resin and the holding portion side by hard synthetic resin. The core may be inserted from the base surface to the head, or the core may be inserted from the base surface to the holding portion. Furthermore, the one that put the core metal from the base surface to the base of the head,
Alternatively, a core may be inserted in the longitudinal direction of the base surface.

[0013]

According to the present invention, the following operations are provided. That is, in the weather strip, a strip portion formed on the surface of the base surface, a head formed on the end of the base surface, and a holding portion formed on the back surface of the base surface are integrally formed by extrusion molding. A gap for inserting the base material is provided between the base and the slit, and the slit is provided in the holding part. The base is inserted into the gap, and the rib of the base is fitted to the slit to fix the holding part to the base. Thereby, even without providing an angle to the base material, it is possible to attach the weather strip in a state where the head is in close contact with the surface of the base material, simplify the mounting shape of the weather strip of the base material, and In addition, it is possible to make the weather strip flexible.

That is, by fixing the holding portion to the base material, the weather strip can be attached without providing an angle to the base material, so that the weather strip can be shifted to an arbitrary position of the mounting portion of the base material. The holding portion can be attached to the substrate without affecting the adhesion between the head and the surface of the substrate.

In the weather strip, a strip portion formed on the surface of the base surface, a head portion formed on an end portion of the base surface and a holding portion formed on the back surface of the base surface are integrally formed by extrusion. Since it is made of synthetic resin, it can be deformed into a complicated shape, such as bending while twisting according to the shape of the weather strip mounting portion of the base material while applying heat to this weather strip in addition to the above action. It is possible to improve the workability of attaching the weather strip.

[0016] Thus, since the same type (weather strip having the same cross-sectional shape) can be adapted to any mounting portion shape of the substrate, the number of types of extrusion molding dies can be reduced, and the cost can be reduced. In addition, since the mounting mode of the holding portion is not limited, the weather strip can be cut in accordance with the shape of the mounting portion of the base material, and the weather strip can be welded or connected with an adhesive. In addition, the weather strip can be selectively used according to the features, and the appearance and the workability of attaching the weather strip can be improved.

In the above-mentioned weather strip, since the strip portion is formed by extruding two layers with a soft synthetic resin and the holding portion with a hard synthetic resin, it is possible to have a certain rigidity as a hard synthetic resin. Since the tip of the head is reinforced with a hard synthetic resin, the tip of the head is prevented from being caught in the gap when the base material is inserted into the gap in addition to the above operation, It is possible to provide a weather strip having features that facilitate the work of attaching the weather strip.

In addition, a two-layer extrusion of a soft synthetic resin and a hard synthetic resin is performed, and a metal core is inserted from the base surface to the head, thereby increasing the rigidity partially from the base surface to the head. By firmly holding the peeling of the part from the base material surface, and giving strength to the lateral force acting on the base surface, the base part of the head is reinforced with hard synthetic resin, It is possible to provide a weather strip having the characteristic that the tip portion is prevented from being caught in the gap when inserted into the gap and the work of attaching the weather strip is facilitated.

In the case of a weather strip formed by extruding two layers, a core is inserted in the longitudinal direction of the base surface, the rigidity is strengthened in the longitudinal direction of the base surface, and the tip of the head is hard-synthesized. It is possible to create a weatherstrip that has the features of reinforcing with resin, preventing the tip of the head from being caught in the gap when inserting the base material into the gap, and facilitating the work of attaching the weatherstrip. become.

Further, by inserting a metal core from the base surface of the weatherstrip extruded to the holding portion to the holding portion, the rigidity of the base surface and the holding portion is strengthened, and the base plate and the holding portion are elongated in the longitudinal direction. It becomes possible to make a weatherstrip having very flexible features.

Also, by inserting a metal core from the base surface of the weatherstrip extruded to the base of the head, rigidity is enhanced from the base surface to the base of the head, and the other portions are made of a soft synthetic resin. Because of this, it is possible to provide a weather strip that is very flexible and has a feature that the holding portion can be freely deformed when the base material is inserted into the gap.

[0022]

An embodiment of the present invention will be described below. FIG. 1 is a perspective view showing a part of a weather strip. The weather strip includes a strip portion 1 formed on a surface of a base surface 2, a head portion 3 formed on an end portion of the base surface 2, and a base. The holding portion 4 formed on the back surface of the surface 2 is integrally formed by extrusion molding. This weather strip is made of a soft synthetic resin by one-layer extrusion molding, the holding portion 4 extends in a direction substantially perpendicular to the base surface 2, and the base material 7 is inserted between the weather strip and the head 3. Gap C is provided.

The gap C is made slightly smaller than the thickness of the substrate 7 so that the head 3 comes into close contact with the surface of the substrate 7. Further, the holding portion 4 is provided with a slit 5, and the slit 5 may be formed at the time of extrusion molding. Since the slit 5 is a soft synthetic resin, the slit 5 can be easily provided on site. Further, the weatherstrip made of the soft synthetic resin extruded with one layer is rich in flexibility and is suitable for mounting on a curved portion having a complicated shape.

Next, in the weather strip shown in FIG. 3, the strip 1 side is a base surface 201 using a soft synthetic resin, and the holding portion 4 side is a base surface 2 using a hard synthetic resin.
It was formed by two-layer extrusion molding of No. 02. That is, the surfaces of the strip portion 1, the base surface 201 and the head 3 are made of soft synthetic resin so as to have a function as a weather strip and a soft touch in design, and the base surface 202, the holding portion 4 and the head 3. The gap C side of No. 3 is made of a hard synthetic resin so as to have the rigidity of the weather strip, and has a certain degree of rigidity even though the surface is soft, so that the attachment to the base material 7 is stabilized. It is.

The gap C is slightly smaller than the thickness of the substrate 7 to such an extent that the inside of the head 3 is in close contact with the surface of the substrate 7. Alternatively, the gap C is formed by making the tip portion 301 of the head 3 somewhat smaller than the thickness of the base material 7 and making the inside of the gap C larger than the thickness of the base material 7 as indicated by the imaginary line 302. Only the portion 301 may be partially adhered to the surface of the base member 7 by utilizing the elastic force of the head 3. Since this weather strip has a certain degree of rigidity as a hard synthetic resin, it is suitable for attachment to straight sections and relatively gentle curved sections. Further, since the head 3 is also extruded in two layers, the tip portion 301 of the head 3 is reinforced with a hard synthetic resin. 3 tip 301
Can be prevented from being caught in the gap C,
The operation of attaching the weather strip can be facilitated.

Next, the weather strip shown in FIG.
In the same manner as the weather strip shown in (1), a two-layer extrusion molding of a soft synthetic resin and a hard synthetic resin (common parts are denoted by the same reference numerals) is performed, and a boundary between the hard synthetic resin and the soft synthetic resin is formed. With a cored bar 203. That is, from the base surfaces 201, 202 to the head 3,
3, the rigidity is further increased from the base surfaces 201, 202 to the head 3 so that the separation of the head 3 from the surface of the substrate 7 is firmly maintained. Therefore, it can be said that this weather strip is preferably applied to a portion where the head 3 is easily peeled and a portion where a force in the direction of arrow A is applied to the base surface 2.

Also, in this weather strip, the tip portion 301 is reinforced with a hard synthetic resin similarly to the weather strip shown in FIG. It is possible to prevent the work from being caught and to facilitate the work of attaching the weather strip. The gap C is formed by making the tip portion 301 of the head 3 slightly smaller than the thickness of the base material 7, and making the inside of the gap C larger than the thickness of the base material 7 as indicated by the imaginary line 302. Only the part of 301 is partially base material 7
May be brought into close contact with the surface of the head using the elastic force of the head 3.

Next, the weather strip shown in FIG.
In the same manner as the weather strip shown in FIG. 4, a two-layer extrusion molding of a soft synthetic resin and a hard synthetic resin (common portions are denoted by the same reference numerals) is different from the weather strip shown in FIG. The core metal 8 on the base surface 202
In the longitudinal direction. Accordingly, the weatherstrip has an increased rigidity in the longitudinal direction of the base surface 202, and is suitable for attachment to a part where such a rigidity is required. Similarly, the gap C between the weather strips is somewhat smaller than the thickness of the base material 7 to such an extent that the inside of the head 3 is in close contact with the surface of the base material 7. Alternatively, the gap C is formed by connecting the tip portion 301 of the head 3 to the base material 7.
, And the inside of the gap C is made larger than the thickness of the base material 7 as shown by the imaginary line 302 so that the tip 3
Only the portion 01 may be partially brought into close contact with the surface of the base member 7 by utilizing the elastic force of the head 3.

Next, the weather strip shown in FIG. 6 is provided with a core 203 extending from the base surface 2 to the holding portion 4 of the weather strip extruded and formed using a soft synthetic resin. The rigidity of the surface 2 and the holding portion 4 is enhanced. That is, since it is a soft synthetic resin, the base surface 2 and the holding portion 4 are very flexible in the longitudinal direction (perpendicular to the paper), but the base surface 2 and the holding portion 4 have a certain degree of rigidity. A force is applied so that the force in the direction of arrow A has a certain strength. Therefore, this weather strip is suitable for use in a part where flexibility is required in the longitudinal direction of the weather strip and a certain strength is required for the force in the direction of arrow A, and the weather strip is rich in flexibility. Therefore, it can be applied to complicated parts and tightly curved parts. 1 and 3 are denoted by the same reference numerals, and description thereof will be omitted.

Next, the weatherstrip shown in FIG. 7 is obtained by inserting a core 203 from the base surface 2 to the base of the head 3 of a weatherstrip extruded with a soft synthetic resin. Thereby, the rigidity is enhanced from the base surface 2 to the base of the head 3. That is, since it is a soft synthetic resin, it is very flexible, and when the base material 7 is inserted into the gap C, the holding portion 4 can be freely deformed. Rather, the holding part 4 is deformed to
To the base material 7. Therefore, the shape of the attachment portion of the weatherstrip is complicated, and the force in the direction of the arrow A must be kept to some extent in the portion where it is difficult to insert the base material 7 into the gap C or at the base of the base surface 2 and the head 3 It is suitable to be used for a part that must be used, and the longitudinal direction of the weather strip is rich in flexibility, so that it can be applied to a part having a complicated shape or a sharply bent part. About the other part, the same code | symbol is attached | subjected to the same part as FIG. 1 and FIG. 3, and the description is abbreviate | omitted.

Further, the weatherstrip shown in FIG. 4 is formed of a single layer of a soft synthetic resin so as to have the characteristics of the single-layer extrusion described with reference to FIGS.
And insert the core 203 from the head 3 to the gap C
When the base material 7 is inserted into the head 3, the tip portion 301 of the head 3 is prevented from being caught in the gap C to improve workability and to give the head 3 some rigidity.
It is also possible to prevent the head 3 from adhering to the surface of the substrate 7 and prevent the head 3 from peeling off. Although not shown in the drawings, the weather strip holder 4 shown in FIGS.
Also, the slits 5 are provided according to the mode of attachment to the substrate 7.

As described above with reference to FIGS. 4 to 7, by inserting the cores 203 and 8 into the weather strip, the rigidity of the weather strip is improved, and the synthetic resin is extruded and solidified. The shrinkage of the synthetic resin during the process is suppressed by the core bars 203 and 8, and the dimensional accuracy of the extruded weather strip can be maintained. The number and thickness of the core bars 203 and 8 are determined in consideration of both the rigidity and the dimensional accuracy of the weather strip.

The operation of the embodiment constructed as described above will now be described. First, the weather strip includes a strip portion 1 formed on the surface of the base surface 2 and a base portion 2.
The head 3 formed at the end of the base and the holding part 4 formed on the back of the base surface 2 are integrally formed by extrusion molding,
Since the gap C into which the base material 7 is inserted is provided between the holding portion 4 and the head portion 3, the base material 7 is inserted into the gap C and the holding portion 4 is fixed to the base material 7. It is possible to attach the weather strip in a state where the head 3 is in close contact with the surface of the base material 7 without providing an angle to the weather strip.

That is, by fixing the holding portion 4 to the base member 7, the weather strip can be attached without providing an angle to the base member 7, and as shown in FIG. 2, a slit 6 made of a synthetic resin having a triangular shape is integrally formed with the weather strip mounting portion of the base material 7 as shown in FIG. 8 and FIG. 7 after inserting the rib 6 into the slit 5 while shifting the weather strip to an arbitrary position of the attachment portion of the base material 7. As shown in FIG. 9, the tip portion 601 of the rib 6 can be melted and welded by (heating) ultrasonic waves.

A gap C is provided. Since the direction in which the base material 7 is inserted into the gap C and the direction in which the rib 6 is inserted into the slit 5 are the same direction, the base material 7 is inserted into the gap C, The ribs 6 can be inserted into the slits 5 while maintaining the state in which the portion 3 is in close contact with the surface of the substrate 7, and the ribs 6 can be inserted without affecting the adhesion between the head 3 and the surface of the substrate 7. The holding portion 4 can be fixed by welding. Further, the rib 6 has a triangular shape in which the side to be inserted into the slit 5 is inclined, and the base material 7 is inserted into the gap C using the surface of the holding portion 4 as a guide surface. Since the ribs 6 are sharp and the tips 601 of the ribs 6 are sharp, the ribs 6 can be melted in a short time to fix the holding portion 4 to the base material 7.

Further, as shown in FIG. 10, a rivet 9 (a screw or a bolt nut may be used instead of the rivet 9).
It is also possible to fix the holding section 4 to the base material 7 by using the adhesive, as shown in FIG.
It is also possible to fix to. Therefore, also in this case, similarly, the holding portion 4 can be fixed by the rivet 9 and the adhesive without affecting the adhesion between the head 3 and the surface of the base material 7. Since the weather strip is made of synthetic resin, the slit 5 can be easily formed on site, and similarly, the through hole of the rivet 9 can be easily formed on site, as shown in FIG. When the holding section 4 is adhered to the base material 7 with an adhesive as described above, no processing is required for the holding section 4. It is possible to attach while shifting to the position of, and in the production of the weather strip, there is no processing limitation due to the attachment mode of the base material 7 as in the conventional cut and raised 11, so that it can be applied to any attachment mode, Weather strips can be standardized, which allows mass production of weather strips.

Then, the weather strip is connected to the base surface 2.
The strip part 1 formed on the surface of the base part 2 and the head part 3 formed on the end of the base surface 2 and the holding part 4 formed on the back surface of the base surface 2 are integrally formed by extrusion molding, and
Since it is made of synthetic resin, while applying heat to this weather strip, the angle α shown in FIGS. 8 and 10 is changed to the angle β shown in FIGS. It is possible to deform into a complicated shape, such as bending while twisting according to the shape, thereby improving the workability of attaching the weatherstrip and reducing the number of types of the weatherstrip.

As a result, the same type (weather strip having the same cross-sectional shape) can be used for any mounting portion shape of the base material 7, so that the number of types of extrusion molding dies can be reduced and the cost can be reduced. In addition, since the mounting mode of the holding portion 4 is not limited, the weather strip can be cut according to the shape of the mounting portion of the base member 7 and the weather strip can be welded or connected with an adhesive. 1, and the weather strip can be selectively used in accordance with the functions and features of the weather strip shown in FIGS.
The appearance and the workability of attaching the weather strip can be improved.

That is, since the weatherstrip shown in FIG. 3 has a certain rigidity as a hard synthetic resin, it is cut and attached according to the length of the linear portion and the relatively gentle curved portion. In addition, since the head 3 is also extruded in two layers, the tip portion 301 of the head 3 is reinforced with a hard synthetic resin. Tip of part 3 301
However, since it is prevented from being caught in the gap C and the work of attaching the weather strip is easy, this weather strip is selected from the viewpoint of applying to as many parts as possible to reduce the number of attachment steps. Can also be used.

In the weather strip shown in FIG. 4, two layers of a soft synthetic resin and a hard synthetic resin are extruded, and a core metal 2 is formed at the boundary between the hard synthetic resin and the soft synthetic resin.
03 is inserted, the rigidity is further increased from the base surfaces 201 and 202 to the head 3 and the separation of the head 3 from the surface of the base material 7 is firmly maintained. It can be cut and attached in accordance with a portion that is likely to occur and a portion where a force in the direction of arrow A is applied to the base surface 2. Also, in this weather strip, the tip portion 301 is reinforced with a hard synthetic resin like the weather strip shown in FIG. 3, so that when the base material 7 is inserted into the gap C, the tip portion 301 gets caught in the gap C. To prevent the weather strip from being easily attached,
This weatherstrip can be selected and used from the viewpoint of reducing the number of mounting steps by applying to as many parts as possible.

In the weather strip shown in FIG. 5, two layers of a soft synthetic resin and a hard synthetic resin are extruded, and the metal core 8 is inserted in the longitudinal direction of the base surface 202. Since the rigidity is strengthened in the direction,
It can be cut and attached to a part where such rigidity is required. Then, similarly to the weather strip shown in FIG. 3, the front end portion 301 of this weather strip is reinforced with a hard synthetic resin, so that the base material 7 is formed.
In order to prevent the front end portion 301 from being caught in the gap C when the cable is inserted into the gap C, the work of attaching the weather strip is easy. Therefore, this weather strip can be selected and used.

Further, in the weather strip shown in FIG. 6, a single layer is extruded using a soft synthetic resin, and a core 203 is provided from the base surface 2 to the holding portion 4 of the weather strip. The rigidity of the surface 2 and the holding portion 4 is enhanced, and the base surface 2 and the holding portion 4 are very flexible in the longitudinal direction (perpendicular to the paper). The rigidity of the strip has a certain strength against the force in the direction of the arrow A. Therefore, flexibility is required in the longitudinal direction of the weather strip, and the strength in the direction of the arrow A has a certain strength. It can be cut and attached to the required parts. In addition, since it is rich in flexibility, it can be cut and attached in accordance with a complicated shape portion or a sharply bent portion.

Further, in the weather strip shown in FIG. 7, a single layer is extruded using a soft synthetic resin, and a core 203 is inserted from the base surface 2 to the base of the head 3 of the weather strip. The rigidity is strengthened from the base surface 2 to the base of the head 3, and the other parts are made of a soft synthetic resin, which is very flexible. Since it can be deformed freely, rather than inserting the base material 7 into the gap C, it is better to deform the holding part 4 and attach the holding part 4 to the base material 7 so that the workability is better. Can be cut and attached, and the shape of the mounting portion of the weather strip is complicated.
The portion where it is difficult to insert the base material 7 into the base, the portion where the base surface 2 and the base of the head 3 must be cut off to some extent in the direction of arrow A, and the longitudinal direction of the weather strip are flexible. It is possible to cut and attach it to a complicated part or a sharply bent part.

In this way, the design can be arbitrarily expanded by appropriately cutting the length to suit the characteristics of each weather strip and by welding and bonding the cut portions with an adhesive. In addition, it is possible to improve the mounting workability. Although the above description has been directed to a synthetic resin, even if a soft rubber or a hard rubber is used, its operation is not changed except for deformation by heat.

[0045]

As described above in detail, according to the present invention, the weather strip has a strip portion formed on the surface of the base surface, a head formed on the end of the base surface, and a holding portion formed on the back surface of the base surface. Are integrally formed by extrusion molding, a gap is provided between the holding section and the head for inserting the base material, and a slit is provided in the holding section. By fixing the holding part to the substrate by fitting to the slit, the weather strip can be attached with the head in close contact with the surface of the substrate without providing an angle to the substrate, In addition to reducing the number of points to reduce the number of mounting steps, simplifying the mounting shape of the base material weatherstrip and reducing the number of processing steps for the base material, and making the weatherstrip flexible, improves mounting workability. It is possible to above.

By fixing the holding portion to the base material, the weather strip can be attached without providing an angle to the base material, so that the weather strip can be shifted to an arbitrary position of the mounting portion of the base material. It can be installed to improve workability, and standardize the weather strip to reduce the number of extrusion dies,
In addition, since mass production is possible, the manufacturing cost of the weather strip can be reduced, and the holding portion can be attached to the base material without affecting the adhesion between the head and the base material surface. The appearance is not impaired, and the mounting workability can be improved.

Further, in the weather strip, a strip formed on the surface of the base surface, a head formed on an end of the base surface and a holding portion formed on the back surface of the base surface are integrally formed by extrusion. And since it is made of synthetic resin, it can be deformed into a complicated shape, such as bending while twisting according to the shape of the weatherstrip mounting part of the base material while applying heat to the weatherstrip. The strip mounting workability can be improved.

As a result, the same type (weather strip having the same cross-sectional shape) can be adapted to any mounting portion shape of the base material, so that the number of types of extrusion molding dies is reduced, and the cost can be reduced. Since the mounting mode of the holding section is not limited, the weather strip can be cut in accordance with the shape of the mounting section of the base material, and the weather strip can be welded or connected with an adhesive. The weather strip can be selectively used according to the condition, and the appearance and the workability of attaching the weather strip can be improved.

In the above-mentioned weather strip, since the strip portion side is extruded with a soft synthetic resin and the holding portion side is extruded with two layers of a hard synthetic resin, it is possible to have a certain rigidity as a hard synthetic resin. Since the tip of the head is reinforced with hard synthetic resin, the tip of the head is prevented from being caught in the gap when inserting the base material into the gap, and the weather strip is attached. It is possible to obtain a weatherstrip that is easy to operate.

Further, by extruding a double layer of a soft synthetic resin and a hard synthetic resin, and by inserting a metal core from the base surface to the head, the rigidity is further increased partially from the base surface to the head. By firmly holding the peeling of the part from the base material surface, and giving strength to the lateral force acting on the base surface, the base part of the head is reinforced with hard synthetic resin, It is possible to obtain a weather strip having a characteristic that the tip portion is prevented from being caught in the gap when inserted into the gap, thereby facilitating the work of attaching the weather strip.

Further, by inserting a metal core in the longitudinal direction of the base surface of the weatherstrip extruded in two layers, the rigidity is enhanced in the longitudinal direction of the base surface, and the tip of the head is reinforced with a hard synthetic resin. When the base material is inserted into the gap, the tip of the head is prevented from being caught in the gap,
It is possible to obtain a weather strip having a feature that the work of attaching the weather strip is facilitated.

Further, by inserting a metal core from the base surface of the weatherstrip extruded to the holding portion to the holding portion, the rigidity of the base surface and the holding portion is strengthened, and the base surface and the holding portion are longitudinally oriented. A weather strip having very flexible features can be obtained.

Further, by inserting a metal core from the base surface of the weatherstrip extruded to the base of the head, the rigidity is enhanced from the base surface to the base of the head, and the other portions are made of a soft synthetic resin. As a result, it is possible to obtain a weather strip which is very flexible and has a feature that the holding portion can be freely deformed when the base material is inserted into the gap.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of an embodiment of the present invention.

FIG. 2 is a perspective view showing a part of a base material.

FIG. 3 is a side view of a weather strip formed by two-layer extrusion.

FIG. 4 is a side view of a weather strip in which a metal core is inserted from a base surface to a head.

FIG. 5 is a side view of a weather strip in which a metal core is inserted in a longitudinal direction of a base surface.

FIG. 6 is a side view of a weatherstrip in which a metal core is inserted from a base surface to a holding portion.

FIG. 7 is a side view of a weatherstrip in which a metal core has been inserted between the base surface and the base of the head.

FIG. 8 is a side view showing a state where the weather strip shown in FIG. 1 is attached to the base material shown in FIG. 2;

FIG. 9 is a side view showing a state where the weather strip shown in FIG. 1 is attached to the base material shown in FIG. 2;

FIG. 10 is a side view showing a state where the weatherstrip is attached to the base material by rivets.

FIG. 11 is a side view showing a state where a weather strip is attached to a base material with an adhesive.

FIG. 12 is a perspective view showing a conventional weather strip.

FIG. 13 is a perspective view of a conventional base material.

14 is a side view showing a state where the weather strip shown in FIG. 12 is attached to the base material shown in FIG.

[Explanation of symbols] 1 strip part 2 base surface 3 head 4 holding part 5 slit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-151120 (JP, A) JP-A-60-55518 (JP, U) JP-A-6-6037 (JP, U) JP-A-7-60 13540 (JP, U) JP-A 64-16418 (JP, U) JP-A 62-12656 (JP, Y2) JP-A 61-30905 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60J 5/00

Claims (7)

(57) [Claims] 1. A base material is inserted between a strip portion formed on a base surface of a weather strip, a holding portion formed on a base surface opposite to a surface on which the strip portion is formed, and the holding portion. The head formed with a gap is integrally formed with the head, and the holding portion is provided with a front part along the direction of insertion into the gap.
A weather strip, wherein a slit for inserting a rib provided on the base material is provided . 2. The weather strip according to claim 1, wherein the weather strip is formed integrally with a synthetic resin. 3. The weather strip according to claim 2, wherein the strip portion is formed by extruding two layers of a soft synthetic resin and the holding portion by a hard synthetic resin. 4. The method of claim 2 or 3 weather strip according to, characterized in that put the metal core from the base surface toward the head. 5. The weather strip according to claim 2, wherein a metal core is inserted from the base surface to the holding portion. 6. The weatherstrip according to claim 2, wherein a core metal is inserted from the base surface to the base of the head. 7. The method of claim 2 or 3 weather strip according to, characterized in that put the metal core in the longitudinal direction of the base surface.