JP2002200944A - Trim insert and trim, and weatherstrip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trim insert, a trim, and a weatherstrip easy in molding, and stably contractible to longitudinal directional compression without practically extending in the longitudinal direction of the trim while securing high strength. SOLUTION: A car inside connecting part 23 and a car outside connecting part 24 for connecting adjacent bone pieces 21 of the insert 15 are formed so as to obliquely extend to the bone pieces 21 in a flat state, and to gradually expansively open over to the other end from the one end. In an acute angle part 26 in a connecting part 25 with the respective connecting parts 23 and 24 in the respective bone pieces 21, a notch 27 is connected to the side edge of the respective connecting parts 23 and 24, and is arranged so that the inner peripheral surface of the notch forms a part of an almost cylindrical surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for a vehicle or the like, a trim used for the weather strip or a decorative material, and a polymer material such as rubber, elastomer, resin or the like for maintaining the shape of the trim. The present invention relates to a trim insert to be buried.

[0002]

2. Description of the Related Art As a trim of this type, a trim body made of a polymer material such as rubber, elastomer, resin, etc.
There is known one in which a sheet metal insert for retaining the shape of the trim main body and securing a holding force of a lip for holding a flange portion of a body described later is embedded. The trim main body is bent in a substantially U-shaped cross section, and a lip is provided on an inner surface of the trim main body for holding a flange portion or the like at an opening of the vehicle. Further, in a weatherstrip that is attached to a flange portion such as a door opening of a body of a vehicle and seals the inside and outside of the vehicle, a hollow seal portion extends outward from an outer surface of the trim body, for example, an outer surface of a side portion. The bulge is formed.

As an insert to be embedded in such a trim, for example, a flat insert in which a plurality of flat rectangular bone pieces are connected by a single bond at the center thereof is known (first conventional example). Constitution). There is also known a flat insert in which a plurality of planar rectangular bone pieces are connected by two bond portions separated by a predetermined distance (second conventional configuration). Further, as shown in FIG. 8A, there is also known an insert 53 in which a meandering wire 51 is tied at predetermined positions by two reinforcing members 52 (third conventional configuration). FIG.
(B) shows a state in which the insert 53 of the third conventional configuration is embedded in a polymer material and bent into a U-shaped cross section. The inserts of the first and second conventional configurations are also embedded in the polymer material and bent into a U-shaped cross section, similarly to the insert 53 of the third conventional configuration.

[0004] In addition to these, for example,
No. 225 also discloses a similar configuration of the insert 60 (fourth conventional configuration). In this insert 60, as shown in FIG. 9A, a first slit 62 is arranged in a central portion of a strip-shaped metal plate 61 in the longitudinal direction of the metal plate 61, and the vicinity of both edges 63. A pair of second
The slits 64 are arranged in a row in the longitudinal direction. Then, by rolling both edge portions 63 of the metal plate 61 with a pair of rollers, as shown in FIG. 9B, each bone fragment 65 is separated, and each bone fragment 65 is connected with an oblique connection link. The inserts 60 connected at 66 are formed.

[0005]

The trim is usually cut into a predetermined length and mounted on a flange portion of a vehicle or the like while being bent along the curvature of the flange portion. Here, in the trim having the insert of the first conventional configuration, although it is possible to bend along the curvature of the flange portion by the bond portion at the center of each bone fragment, on the contrary, the longitudinal length of the trim is changed by this bond portion. Poor contractility and extensibility in the direction. For this reason, in order to prevent a gap from being generated between both ends of the mounted trim, it is necessary to strictly control the length of the trim according to the circumference of the flange portion. In addition, there is a problem that it is difficult to perform mounting when the circumference of the flange portion is longer due to a set of tolerances.

In the trim having the insert of the second conventional structure, generally, after being coated with a polymer material,
At least one of the two bond portions is cut and used.
Thereby, although the followability to the flange portion is ensured, the contraction of the trim in the longitudinal direction is also poor due to the bond portion, and strict control of the trim length is required. On the other hand, in such a trim, when one of the bond portions is cut, a certain degree of extensibility in the longitudinal direction is secured, and the circumference of the flange portion is longer due to a set of tolerances. Can be easily handled.

However, when the trim is mounted on the flange in a state where the trim is extended particularly at a position corresponding to the corner of the body opening, residual stress may be generated in the trim. When such residual stress is present, the trim mounted on the flange portion tends to contract and deform to gradually return to the original extruded state (linear state) due to its own elastic force of the polymer material, and the trim is removed from the flange portion. However, there is a problem that the appearance may be deteriorated due to an inadvertent displacement in the falling direction from the predetermined position.

On the other hand, in the trim having the insert 53 of the third conventional structure, the extension of the trim in the longitudinal direction is restricted by the presence of the reinforcing member 52. In this trim, the contraction in the longitudinal direction is caused by the meandering wire 51.
And the flexure of the struts 52 is allowed. For this reason, by trimming the trim slightly longer than the circumference of the flange portion and mounting it in a slightly contracted state, it is easy to mount it on the flange portion without generating the above-mentioned residual stress or gap. At the same time, the appearance of the trim can be improved.

However, the trim having the insert 53 of the third conventional structure has a problem that the structure of the insert 53 is complicated, the molding is troublesome, and the production cost is increased. Further, since the insert 53 is mainly composed of the meandering wire 51, there is a problem that rigidity tends to be insufficient.

Further, the insert 60 of the fourth conventional configuration is used.
In the trim having the above, the portion corresponding to the second slit 64 of the both edge portions 63 thinned by rolling is used as the insert 60. Thereafter, a trim is formed by coating with a polymer material. Also in this trim, in a state where the insert 60 is bent into a U-shaped cross section,
The connecting link 66 connecting the adjacent bone fragments 65
In the same direction. Thus, when the trim is longitudinally compressed, its coupling link 66
It is deformed in a direction where its inclination becomes slightly larger (approaching the vertical direction crossing the longitudinal direction of the insert). As a result, the distance between adjacent bone fragments 65 is slightly shortened, and the entire trim is contracted.

However, in the insert 60 of the fourth conventional configuration, the connecting link 66 is merely formed to be oblique with respect to the bone fragment 65. For this reason, there has been a problem that the deformation of the coupling link 66 when the trim is compressed in the longitudinal direction is not stable, and the trim shrinkage tends to vary.

The present invention has been made by focusing on such problems existing in the prior art. Its purpose is easy to mold, while ensuring high strength, hardly expands in the longitudinal direction of the trim, and on the contrary, the trim insert and the trim can be contracted stably against the compression in the longitudinal direction, and It is to provide a weather strip.

[0013]

In order to achieve the above object, the present invention according to claim 1 of the present invention embeds a plurality of bone fragments and two adjacent bone fragments embedded in a polymer material of trim. In a sheet metal trim insert having a pair of bond parts interconnected at a predetermined interval, the pair of bond parts extend obliquely with respect to the bone fragments,
It is characterized in that each bond portion is formed so as to gradually expand from one end to the other end, and a cutout portion is provided at at least one acute angle portion in a connection portion of each bond portion with the bone fragment. is there.

In the trim insert according to the first aspect, when the insert is bent in a U-shaped cross section, the bond connecting the adjacent bone fragments is inclined in the same direction with respect to the bone fragments. Become. Therefore, when a compressive force acts in the longitudinal direction of the insert, the bond portion is deformed in a direction in which the inclination becomes closer to the vertical direction. Here, the vertical direction is a direction substantially orthogonal to the longitudinal direction of the insert. Here, a cutout is provided in at least one acute angle portion of the connection portion of each bond with the bone fragment. For this reason, by forming the width of the bond part constant, when the compressive force acts on the insert,
Stress concentrates on the notch, the bond is deformed starting from the notch, and the deformation of the bond becomes stable.
On the other hand, even if a tensile force acts in the longitudinal direction of the insert, the obtuse portion of the connection portion of each bond with the bone fragment becomes a resistance, and the inclination of the bond portion becomes closer to the horizontal direction. Deformation is suppressed. Here, the horizontal direction is a direction substantially along the longitudinal direction of the insert. Thereby, the insert can be made to be contractable with little extension in the longitudinal direction. In addition, this insert can be easily formed by, for example, punching a flat metal plate while ensuring high strength.

According to a second aspect of the present invention, in the first aspect of the invention, the notch is provided on a bone fragment of the acute angle portion, and at least a part of an inner peripheral surface of the notch is provided on the acute side portion. It is characterized in that it is formed so as to be continuous with the side of the bonding portion.

In the trim insert according to the second aspect, in addition to the effects of the first aspect, when a compressive force acts in the longitudinal direction of the insert, the inclination of the bond portion is more reliably reduced. It can be deformed in a direction approaching vertical.

According to a third aspect of the present invention, in the second aspect of the invention, the notch is formed such that an inner peripheral surface thereof forms a part of a substantially cylindrical surface. It is a feature.

In the trim insert according to the third aspect, in addition to the effect of the second aspect, when a compressive force acts in the longitudinal direction of the insert, a part of the inner peripheral surface of the cutout portion. Therefore, the bond portion can be more stably deformed.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the bond portion has an inclination with respect to the bone fragment, which is different from that of the bone fragment. Characterized in that they are formed so as to be alternately inverted through the intermediary.

In the trim insert according to the fourth aspect, in addition to the operation of the invention according to any one of the first to third aspects, the movement of each bone fragment accompanying the deformation of the bond portion. The directions are opposite to each other in adjacent bone fragments. For this reason, when viewed in the longitudinal direction of the insert, the vertical movements of the bone fragments are alternated and cancel each other, so that the amount of deformation of the entire insert can be reduced.

According to a fifth aspect of the present invention, in the first aspect of the present invention, each of the pair of bonding portions is located at a distance from an edge of a bone fragment. Are connected to the bone fragments at different positions.

In the trim insert according to the fifth aspect, in addition to the effect of the invention according to any one of the first to fourth aspects, by adjusting the position of both bond portions, The position of the bending neutral axis in the trim can be controlled. Thereby, for example, even when the present invention is applied to a weather strip in which a large bulging portion such as a seal portion is present on a side portion of the trim, the bending neutral axis is set so as to cancel the inclination of the trim due to deformation of the bulging portion. can do.

According to a sixth aspect of the present invention, there is provided a trim including a trim body made of a polymer material having an insert embedded therein and bent to have a substantially U-shaped cross section. It comprises the insert for trim according to any one of claims 1 to 5.

In the trim according to the sixth aspect, a gap may be formed between both ends of the flange portion without strictly controlling the length of the trim itself with respect to the entire circumference of the flange portion to be mounted. It can be mounted easily and with good appearance.

According to a seventh aspect of the present invention, there is provided a trim body made of a polymer material in which an insert is buried and bent in a substantially U-shaped cross section, and the trim body is swelled from an outer surface of the trim body. In a weather strip provided with a sealing portion, the insert comprises the trim insert according to any one of claims 1 to 5.

In the weather strip according to the seventh aspect, it is possible to easily and beautifully attach the flange to the flange portion without forming a gap between both ends.
Further, when the seal portion is provided on the side portion, it is possible to suppress the occurrence of inclination of the trim main body due to the balance of the entire weather strip.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is embodied in a weather strip having a trim mounted on a flange portion of an opening of a vehicle or the like will be described with reference to FIGS. A description will be given based on FIG.

As shown in FIGS. 1 to 3 and 5, the weather strip 11 is made of a polymer material such as EPDM.
(Ethylene / propylene / diene terpolymer) A trim body 12 having a substantially U-shaped cross section made of solid rubber and a flange holding lip 13 protruding inside the trim body 12 is provided. This flange holding lip 13
Flange part 10c of opening part 10b of body panel 10a etc.
To hold the weather strip 11 on the vehicle body panel. Inside the trim body 12,
An insert 15 made of sheet metal is embedded.

A hollow seal portion 17 elastically abutting against an outer peripheral portion of a door panel (not shown) to seal between the door panel and the vehicle body panel 10a is provided on the outer side of the outer side wall 16a of the trim main body 12. It is bulged out of EPDM sponge rubber. On the other hand, the inner side wall 1 of the trim body 12
6b, a cover lip 1 elastically abutting on a vehicle interior such as a garnish (not shown)
8 are bulged.

When the weather strip 11 is assembled on the vehicle body, the corner 10d of an opening 10b such as a door opening is provided.
2 (see FIG. 2), it is necessary to curve the trim 14 along the curve of the corner portion 10d. For this reason,
The insert 15 is required to have a function of bending three-dimensionally in the longitudinal direction in a bent shape having a substantially U-shaped cross section.

As shown in FIGS.
Is a plurality of bone pieces 21 and slits 22 as punching spaces alternately arranged in the longitudinal direction, which are made of a sheet metal having a predetermined thickness, and a pair of bonding portions connecting the bone pieces 21 to each other. A connecting portion 23 and a vehicle-side connecting portion 24 are provided. Here, in the bent form of the weather strip 11, the inside connecting portion 23 is disposed on the inside side wall 16 b of the trim body 12, and the outside connecting portion 24 is provided on the trim body 1.
2 on the outer side wall 16a.

The inner connecting portion 23 and the outer connecting portion 24 extend obliquely with respect to each of the bone pieces 21 in the plate shape shown in FIG. 4, and gradually expand from one end to the other end. The two adjacent bone fragments 21 are interconnected at a predetermined interval. In other words, the central portion 21a of each bone fragment 21 and each connecting portion 2
The space surrounded by 3 and 24 is formed so as to have a substantially equal leg trapezoidal shape. In addition, this approximately isosceles trapezoid space
It constitutes a part of the slit 22. When the insert 15 is bent into a U-shaped cross section in a state where the insert 15 is embedded in the trim main body 12, the inclination directions of the connecting portions 23 and 24 become the same by making the space into a substantially equilateral trapezoidal shape. It has become. Each of the connecting portions 23 and 24 is formed to have a certain width.

Each of the connecting portions 23 and 24 is
However, they are connected at positions different in distance from the edge 21b of the bone fragment 21, respectively. That is, the distance Lo between the center of gravity Po of the outside connection portion 24 and the extension of the edge 21b of the bone piece 21 is the distance Li between the center of gravity Pi of the inside connection portion 23 and the extension of the edge 21b of the bone piece 21. It is set to be longer.

Here, the center of gravity P of the inside connecting portion 23
i is set to be substantially at the center of the inner side wall 16b in a state where the insert 15 is embedded in the trim main body 12. On the other hand, the center of gravity Po
Is set to be near the base end of the vehicle outer side wall 16a in a state where the insert 15 is embedded in the trim main body 12. A two-dot chain line (see FIG. 5) connecting the centers of gravity of both connecting portions 23 and 24 becomes a bending neutral axis AX when the trim main body 12 is bent along the longitudinal direction in the cross-sectional direction, and this bending neutral axis AX is It is in a tilted state. Here, the trim 1 in a state of being formed on the weather strip 11
4 is bent along the flange 10c in the opening 10b of the vehicle, the trim 14
It is compressed on the center point side of the opening 10b of the vehicle with respect to X,
It is expanded on the outer peripheral side of the opening 10b, and neither compression nor expansion occurs on the bending neutral axis AX. Therefore, trim 14
In FIG. 5, the bending neutral axis AX is bent so as to be horizontal, so that the base end (upper part) of the trim 14 tends to lean to the left. The offset of the outer hollow seal portion 17 with the force of the crushing deformation due to the bending causes the outer hollow seal portion 17 to be substantially perpendicular to the longitudinal direction of the weather strip 11 when mounted on the flange portion 10c.

A notch 27 as a notch is provided in the acute angle portion 26 of the connection portion 25 on each bone piece 21 with each of the connection portions 23 and 24. The notch 27 is formed such that its inner peripheral surface is continuous with the side of each of the connecting portions 23 and 24 and its inner peripheral surface forms a part of a short substantially cylindrical surface in consideration of the thickness of the insert. I have.

Next, a method for manufacturing the weather strip 11 will be described. First, a strip-shaped sheet metal is supplied step by step to a press equipped with a punching die for punching and forming the bone fragment 21, the slit 22, and the two connecting portions 23 and 24, thereby forming the long insert 15. I do.

Next, the elongated insert 15 is supplied to an extruder for extruding the trim 14, the hollow seal portion 17, and the cover lip 18. In this extruder,
The trim body 12 and the flange holding lip 13 are extruded with EPDM solid rubber using the insert 15 as a core material, and the hollow seal portion 17 is extruded with EPDM sponge rubber at the same time. At this time, the trim 14 is extruded in a substantially flat shape by covering the flat insert 15 with the EPDM rubber.
The extruded weather strip 11 is passed through a vulcanization tank to vulcanize the EPDM rubber, and then, in a bending machine, the trim 14 is plastically deformed into a substantially U-shaped cross section, and the weather strip 11 having a cross section shown in FIG. It becomes.

Therefore, according to this embodiment, the following effects can be obtained. (A) In the insert 15 of the weather strip 11 of this embodiment, the inner connecting portion 23 and the outer connecting portion 24 extend obliquely with respect to the bone piece 21 in a flat state, and extend from one end to the other end. It is formed so as to gradually expand. Therefore, in a state where the insert 15 is bent in a U-shaped cross section, the two connecting portions 23 and 24 are inclined in the same direction with respect to the bone fragment 21. Thereby, when a compressive force acts in the longitudinal direction of the insert 15,
As shown by the two-dot chain line in FIG.
It is deformed in a direction in which the inclination becomes slightly large (approaching in a vertical direction perpendicular to the longitudinal direction of the insert 15).
In FIG. 6, for easy understanding, the connecting portion 2
The amount of deformation of 3, 24 and the amount of movement of bone fragment 21 are greatly exaggerated.

Here, each connecting part 2 in each bone fragment 21
A notch 27 is provided in the acute angle portion 26 of the connection portion 25 with the connection 3, 24. In addition, each connecting part 23, 24
Are formed in a constant width. Therefore, when the compressive force acts on the insert 15, stress concentrates on the notch 27, and the two connecting portions 23,
24 is deformed, and the deformation of both connecting portions 23 and 24 becomes stable. On the other hand, even if a pulling force acts on the insert 15 in the longitudinal direction, the obtuse angle portion 28 in the connecting portion 25 between each connecting portion 23, 24 and each bone fragment 21 becomes a resistance, and the inclination in each connecting portion 23, 24 Is reduced (closer to the horizontal direction along the longitudinal direction of the insert 15).

Accordingly, the insert 15 can be made to be only contractible while being hardly extended in the longitudinal direction. In addition, this insert 15
Can be easily formed, for example, by punching a flat metal plate while ensuring high strength.

Then, the trim 14 in which the insert 15 is embedded can secure a high holding force to the opening flange portion and can be contracted stably without substantially extending in the longitudinal direction. Therefore, regardless of the tolerance of the circumferential length of the flange portion 10c of the opening 10b, the trim 14 is cut slightly longer than the circumferential length and slightly contracted, and a gap is formed between both ends of the trim 14. The flange portion 10 of the opening 10b can be easily
c. Further, since the trim 14 is not extended, the flange portion 10c of the opening 10b is formed.
The shrinking stress does not remain in the trim 14 attached to the trim. Thus, the weather strip 11 is prevented from being inadvertently displaced from the flange portion 10c of the opening 10b. Thus, the appearance of the weather strip 11 can be improved.

(B) In the insert 15 of the weatherstrip 11 of this embodiment, the notch 27 is formed by the acute angle portion 26 in the connection portion 25 between the bone fragment 21 and the connecting portions 23 and 24.
Is provided on the side of the bone fragment 21. And the notch 2
7 is formed so as to be continuous with the side of each of the connecting portions 23 and 24. For this reason, when a compressive force acts in the longitudinal direction of the insert 15, the connecting portions 23 and 24 can be more reliably deformed in a direction closer to the vertical with the notch 27 as a starting point.

(C) In the insert 15 of the weather strip 11 of this embodiment, the inner peripheral surface of the notch 27 is formed so as to form a part of a substantially cylindrical surface. For this reason, when a compressive force acts in the longitudinal direction of the insert 15, stress does not concentrate on a part of the inner peripheral surface of the notch 27, and the connecting portions 23 and 24 can be more stably deformed.

(D) In the insert 15 of the weatherstrip 11 of this embodiment, the inboard connecting portion 23 and the outboard connecting portion 24 are attached to the bone piece 21 at different positions from the edge 21b of the bone piece 21, respectively. It is connected.

For this reason, by adjusting the positions of the two connecting portions 23 and 24, the position of the bending neutral axis AX in the trim 14 can be controlled.
Even if a bulge such as 7 exists, the trim 14 can be mounted substantially perpendicular to the longitudinal direction of the weatherstrip 11. Here, in the weather strip 11 of this embodiment, the outer side and the inner side wall 16 of the trim 14 are provided.
a and 16b are provided with a hollow seal portion 17 and a cover lip 18.
There is a large bulging portion. In the presence of such a large bulging portion, if the bulging portion is deformed by bending, such as being crushed, a stress is generated so that the bulging portion returns to its original state. Due to this stress, a force for tilting the trim 14 with respect to the flange portion 10c of the opening 10b is generated. By setting the bending neutral axis AX so as to negate the force to be inclined, in other words, with the inclination opposite to the inclination direction, the inclination of the trim 14 can be suppressed. Therefore, the weather strip 11 can be kept in a stable mounting state.

(Second Embodiment) Next, a second embodiment of the present invention will be described focusing on parts different from the first embodiment.

As shown in FIG. 7, in the insert 31 of this embodiment, the inner connecting portion 23 and the outer connecting portion 24 are provided.
However, it is formed so that the inclination with respect to each bone fragment 21 is alternately reversed via each bone fragment 21. In other words, the plurality of inside connection portions 23 and outside connection portions 24 are formed so as to be continuous in a triangular wave shape.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the effects (a) to (d) described in the first embodiment. (E) In the insert 15 of the weather strip 11 of the present embodiment, the inclination of the two connecting portions 23 and 24 is formed so as to be alternately reversed via the respective bone fragments 21.

For this reason, the moving direction of each bone fragment 21 accompanying the deformation of each connecting portion 23, 24 is
In opposite directions. Therefore, the amount of deformation of the entire insert 15 can be reduced.

(Modification) The embodiment of the present invention may be modified as follows. In the above embodiments, the trim 14 and the hollow seal portion 17 are made of EPDM, but may be made of rubber other than EPDM, a soft resin material such as polyvinyl chloride, a thermoplastic elastomer, or the like.

In each of the above embodiments, the present invention is embodied in the weather strip 11 having the hollow seal portion 17 on the outer side wall 16a of the trim 14 and the cover lip 18 on the inner side wall 16b. May be embodied as a weatherstrip having no hollow, a trim for decoration or the like not having the hollow seal portion 17.

In the above embodiments, the insert 15
Was formed by punching, but it may be formed by, for example, rolling a slitted sheet metal. In the above-described embodiments, the notch 27 is provided at the acute angle portion 26 of the connection portion 25 with each of the bone pieces 21 on both sides of each of the connection portions 23 and 24, but the notch 27 is provided on either one of the connection portions 23 and 24. The notch 27 may be formed only in the acute angle portion 26.

Each connecting portion 2 of the insert 15
3 and 24 may be divided into a plurality of blocks, and the inclination of each of the connecting portions 23 and 24 may be inverted for each block. -The inside connection part 23 and the outside connection part 24 in the insert 15 may be connected to each bone fragment 21 at a position equidistant from the edge 21b of each bone fragment 21.

In each of the above embodiments, the insert 1
Although 5 is made of sheet metal, examples of the sheet metal mentioned here include iron plates, aluminum plates, copper plates, and various alloy plates such as stainless steel.

[0055]

As described in detail above, according to the first aspect of the present invention, it is easy to form and secures high strength, and almost embeds the trim in the longitudinal direction of the trim. It is possible to provide a trim insert that can be contracted and stably attached without being extended.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in (1), when a compressive force acts in the longitudinal direction of the insert, the bond portion can be more reliably deformed in a direction in which the inclination approaches a vertical direction intersecting the longitudinal direction of the insert.

According to the invention described in claim 3, according to claim 2
In addition to the effects of the invention described in the above, when a compressive force is applied in the longitudinal direction of the insert, stress is not concentrated on a part of the inner peripheral surface of the cutout portion, and the bond portion can be more stably deformed. it can.

According to the invention described in claim 4, claim 1 is provided.
In addition to the effects of the invention described in any one of the third to third aspects, the amount of deformation of the entire insert can be reduced. According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, for example, a large bulging portion such as a seal portion exists on the side of the trim. Even when the present invention is applied to a weather strip, the occurrence of the inclination of the trim due to the deformation of the bulging portion due to the bending can be suppressed.

According to the sixth aspect of the present invention, a trim that can be easily and easily mounted on the flange portion is realized. According to the seventh aspect of the present invention, a weather strip that can be easily and easily mounted on the flange portion is realized. Further, it is possible to suppress the occurrence of inclination of the trim main body due to the balance of the entire weather strip.

[Brief description of the drawings]

FIG. 1 is a side view showing a mounting state of a weather strip.

FIG. 2 is a perspective view showing a weather strip attached to a corner portion of a door opening.

FIG. 3 is a perspective view showing a trim insert according to the first embodiment and a form in which a weatherstrip in which the trim insert is embedded is extruded.

FIG. 4 is a plan view showing the insert of FIG. 3 in a flat state;

FIG. 5 is a sectional view showing the weather strip of FIG. 3;

FIG. 6 is a partial side view showing a deformed state of the insert of FIG. 3;

FIG. 7 is a plan view showing the trim insert according to the second embodiment in a flat state;

FIG. 8 (a) is a plan view showing a third conventional trim insert in a flat state, and FIG. 8 (b) is a perspective view showing the insert in a bent state.

9A is a plan view showing a trim insert of a fourth conventional configuration in a state before rolling, and FIG. 9B is a plan view showing the insert after rolling.

[Explanation of symbols]

11 ... weather strip, 12 ... trim body, 14 ... trim, 15, 31 ... insert as trim insert, 16a ... outer side wall as side wall, 16b ... inner side wall as side wall, 21 ... bone fragment, 21b: Edge of bone fragment, 23: Inside connecting portion constituting bond portion, 24 ...
Outer side connecting part constituting a bonding part, 25 ... connecting part, 26
… A sharp corner, 27… Notch as a notch.

Claims (7)

[Claims] 1. A sheet metal trim which is embedded in a polymer material of a trim and includes a plurality of bone fragments and a pair of bonding portions interconnecting two adjacent bone fragments at a predetermined interval. In the insert for, the pair of bond portions, while extending obliquely with respect to the bone fragment, formed so that each bond portion gradually expands from one end to the other end, and the bone fragment of each bond portion A cut insert is provided in at least one acute angle part of the connection part of (1). 2. The notch portion is provided on a bone fragment of the acute angle portion, and at least a part of an inner peripheral surface thereof is formed so as to be continuous with a side of the bond portion. 2. The trim insert according to 1. 3. The notch portion is formed such that an inner peripheral surface thereof forms a part of a substantially cylindrical surface.
The insert for trim according to 1. 4. The bonding part according to claim 1, wherein the bonding portion is formed such that the inclination of the bonding portion with respect to the bone fragment is alternately reversed through each bone fragment. Insert for trim. 5. The bone fragment according to claim 1, wherein the pair of bonding portions are respectively connected to the bone fragment at positions different in distance from the edge of the bone fragment. Insert for trim. 6. A trim provided with a trim body made of a polymer material having an insert embedded therein and bent in a substantially U-shaped cross section, wherein the insert is any one of claims 1 to 5. A trim comprising the insert for trim according to item 6. 7. A weather strip having a trim body made of a polymer material in which an insert is buried and bent to have a substantially U-shaped cross section, and a seal portion bulged from an outer surface of the trim body. A weather strip, wherein the insert comprises the trim insert according to any one of claims 1 to 5.