JP3462164B2 - Method of manufacturing weatherstrip - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention has two different forms.
Long-sized weathers can be obtained by injecting shape material into the same mold.
Connect both ends of the trip intermediate product and attach the weather strip.
The present invention relates to a molding method .

[0002]

2. Description of the Related Art For example, for weather strips of automobiles, a long product formed by extrusion is cut into a predetermined length (the cut product is an "intermediate product of the weather strip"), and both ends thereof are molded. By integrally connecting with each other, a frame shape corresponding to the shape of the mounting portion is formed. In this weather strip, two parts, a hard rubber trim part attached to a vehicle body or a flange part of a door, and a soft rubber tubular seal part that elastically deforms to perform a sealing function, are integrally molded at the time of molding. It

In the above weather strip molding, in order to integrally connect both ends of an intermediate product obtained by cutting a long product into a predetermined length by molding, as shown in FIG. 16, a trim portion T and a tubular seal are formed. Part S is molded separately with different molding materials (hard rubber and soft rubber) (two-color molding)
Sometimes. In this mold molding method, it is necessary to mold twice using two types of molds corresponding to the respective shapes of the trim part T and the tubular seal part S, which increases the manufacturing cost of the mold and the number of molding steps. There was a problem.

It is also possible to inject two kinds of molding materials into the same mold at the same time, and molding the molding materials. However, if the injection balance and the injection speed of each molding material are simply adjusted, FIG.
And, as shown in FIG. 18, at the molding boundary portion (partition portion) B between the trim portion T and the tubular seal portion S, one molding material flows into the molding portion of the other molding material, resulting in appearance. Has a problem in that the appearance becomes poor and the strength of the molding boundary portion B is deteriorated in terms of function.

[0005]

The present invention has two types of differences.
Injection molding compound into the same molding die,
Connect both ends of the intermediate strip to the weather strip.
At the time of molding the upper part, it is necessary to prevent one molding material from flowing into the molding part of the other molding material at the molding boundary portion of two different molding materials, and to connect the weather strip.
The challenge is to improve both the appearance and function of the sequel .

[0006]

The invention according to claim 1 for solving the above-mentioned problems is a flange portion of a vehicle body or a door of a vehicle.
The hard rubber trim that can be attached to the
The soft rubber seal part that performs the sealing function and the longitudinal direction
Long weatherstrip intermediate molded integrally along
Corners formed by injection molding of rubber material between the longitudinal ends of the product
-Form a corner and connect the edges at the corners.
In the following method for producing a weather strip,
The injection mold that forms the
A cavity having a shape corresponding to the inner portion is formed,
The cavity corresponds to the trim section of the corner section.
The first cavity portion that forms the
A second cavity forming a corresponding portion,
The first cavity part and the second cavity part correspond to the trim part
The first portion is continuous at the boundary between the portion and the portion corresponding to the seal portion.
The cavity part is a partition piece set at the boundary part
Each of the divided cavities that are divided into two by
It has a bypass passage connecting two dividing cavities,
Partition piece along the boundary when the mold is open
Set , tighten the mold and set in the mold.
The partition piece put into the first cavity
In the state where it is partitioned into the tee part and the second cavity part,
A hard rubber material is used for the first cavity portion and the second cavity
The soft rubber material is applied to the tee section from different injection gates.
Hard rubber material that is ejected and injected into the first cavity portion
The material must be divided into one of the above two divided cavity parts.
The hard rubber material injected into the cavity part
So that it flows through the channel into the other split cavity.
To form the corner portion and the partition piece
Corresponding part of trim part and sealing part of the corner part
It is characterized by being integrated with and.

According to the first aspect of the invention, the cap in the molding die is
Vity is divided into the first and second cavities by the partition piece.
Because it is divided into tees, each cavity is hard and soft.
Even when injecting different quality rubber materials, there is no odor at each molding boundary.
When one rubber material is
Shape part) and the part corresponding to the trim part
In the first cavity portion that forms the portion,
Of one of the two divided cavities
The hard rubber material injected into the dividing cavity is
It flows into the other dividing cavity through the path passage.

Therefore, the corner-corresponding portion corresponding to the trim portion
Parts and the corresponding seal part are formed respectively.
There is no part to be molded by mixing shaped materials,
It corresponds to the trim part of the corner part of the weather strip which is
The molding boundary between the part and the corresponding seal part becomes clear
The appearance is improved and the functions such as the strength of the molding boundary are improved.
Reserved. In addition, the first key for molding the portion corresponding to the trim part
The cavity part is divided into two dividing cavities with a partition piece.
Even if cut off, the hard rubber material will pass through the bypass passage.
Since all parts are filled, the weather strip
The part corresponding to the trim part of the corner connection part can be formed without any hindrance.
It

The invention of claim 2 is the invention of claim 1.
In the first cavity part partitioned by the partition piece
After injecting hard rubber material, soft in the second cavity
A rubber material is injected, and the invention of claim 3 is a contract
In the invention of claim 1, the first and second cavity portions
Inject hard and soft rubber materials at the same time
It is something. According to the invention of claim 3, two
If different kinds of molding materials are injected into the vity part at the same time, molding time
Is shortened and the molding efficiency is increased.

Further , the invention of claim 4 is based on claims 1 to
In the invention of any one of 3 above, the partition piece is
Any one of the materials forming the trim part or the seal part
Characterized by being formed of the same or equivalent material as
is doing. As a result, the partition piece is
Materially contacts the trim or seal of the
It is worn and integrated .

[0011]

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to Examples.
This will be described in more detail. The embodiment shown in FIGS. 1 to 9 is an example in which the present invention is applied to the molding of the corner portion of the weather strip W. 13 to 15
As shown in Fig. 4, the weather strip W is formed into a frame shape so that both ends of an intermediate product obtained by cutting a long product formed by extrusion into a predetermined length are located at the corners, and the corners are molded. It is connected by. As shown in FIG. 14, the weather strip W includes a hard rubber trim portion T ′ and a soft rubber tubular seal portion S ′.
In order to be attachable to a flange portion (not shown) of the vehicle body, each of the opposing plate portions 51 ′ of the trim portion T ′ having a U-shaped cross section is integrally formed in a sectional view. Lip portions 52 'are provided so as to face each other.
On the other hand, as shown in FIG. 15, the corner connection portion K of the weather strip W has a configuration in which a trim portion T made of hard rubber and a tubular seal portion S made of soft rubber are integrally formed in a sectional view. However, the trim part T of the corner connection part K
No lip portion 52 'is provided on each of the facing plate portions 51, and the tubular seal portion S has a core portion 1 which will be described later.
An opening 53 is provided to allow 8 to be removed. In addition, in FIG. 14, reference numeral 54 denotes a core metal embedded in the trim portion T ′ of the weather strip W.

Next, a molding die D for molding the above-mentioned corner connecting portion K will be described with reference to FIGS. The molding die D includes a fixed die 10 that functions as a die body, a slide core 20 that slides with respect to the fixed die 10, and a direction perpendicular to the sliding direction of the slide core 20 with respect to the fixed die 10. And a movable mold 30 that is movable. The fixed mold 10 is formed by stacking the first to third mold plates 11, 12, and 13 to form the bolt 1
A structure fixed against the substrate 15 via a fixture such as 4, forming surface 16 inside of the first to third in each template 11, 12, 13 (see FIG. 1), the corner connection Part K
It is formed into a concave curved surface corresponding to the curved shape, and at both ends of the molding surface 16, connection end surfaces 17 for connecting both end surfaces of the weather strip W to be connected.
Are provided so as to be orthogonal to the molding surface 16.
By stacking the first to third template plates 11, 12, 13 between them, the opposing plate portions 5 of the trim portion T are provided between them.
Counter plate forming cavity C ₁ a for forming ₁
C ₁ b is formed up and down (see FIG. 6). Also, the third
The mold plate 13 has a core portion 18 formed from the inner molding surface 16 to the upper surface, and both ends of the core portion 18 are protruded from the connection end surfaces 17 by a predetermined length. Both protruding portions (portions indicated by two-dot chain lines in FIGS. 2 and 3) 18a of the center core portion 18 are tubular seal portions at both ends of the weather strip W to be connected at both ends when the corner connection portion K is formed. This is the part inserted into S '.

As shown in FIGS. 2 to 4 and 6, the slide core 20 has a convex curved molding surface 2 at a portion facing the concave curved molding surface 16 of the fixed mold 10.
With the configuration of No. 1, the molding surfaces 16 and 21 are kept facing each other, and each of the forward and backward slides is performed with respect to the fixed mold 10. Also in this slide core 20, connection end faces 22 for connecting both end faces of the weather strip W are provided at both ends of the convex curved molding surface 21 so as to be orthogonal to the molding surface 21. Slide core 2
The molding surface 21 of 0 is the trim portion T of the corner connecting portion K.
And a tubular seal portion molding surface 21b for molding a part of the tubular seal portion S. The connecting portion between the two molding surfaces 21a and 21b is curved in a convex curve. A bent ridge 23 is formed.

Further, as shown in FIGS. 5 to 7, the movable die 30 has most of the tubular seal portion S of the corner connection portion K formed at the portion facing the center portion 18 of the fixed die 10. A molding surface 31 having a concave curved surface for forming is formed. At the time of molding, the movable die 30 comes into close contact with both the fixed die 10 and the slide core 20.

Then, as shown in FIG. 6, the fixed mold 1
0, the slide core 20, and the movable mold 30 are separated from each other, and when they are relatively close to each other and are clamped as shown in FIG. 7, a cavity (molding space) is formed between them. C is formed. The cavity C is composed of a first cavity portion C ₁ for molding the trim portion T of the corner connection portion K and a second cavity portion C ₂ for molding the tubular seal portion S thereof.

According to the present invention , the fixed die 10 and the slide core 20 are provided.
Before the mold is clamped by bringing the movable mold 30 and the movable mold 30 relatively close to each other,
An inlet of the facing plate molding cavity C ₁ b on the side of the two facing plate molding cavities C ₁ a and C ₁ b provided in the fixed mold 10 that is connected to the upper second cavity C _2. A partition piece P curved in a shape corresponding to the shape of the molding surface 16 of the fixed die 10 is set in the portion, and thereafter, the fixed die 10, the slide core 20, and the movable die 30 are relatively brought close to each other. It is characterized by tightening. In the mold-clamped state, the tip end of the curved ridge 23 curved in a convex curve provided on the molding surface 21 of the slide core 20 comes into contact with the partition piece P, and as a result, the cavity C is separated from the partition piece P.
Accordingly, the first and second partitioned into each cavity C _1, C _2, the cavity portions of the first and second C _1, the C _2, material shaping the one no longer flow into the other.

Further, the partition piece P is, after the molding, in order integrated by insert as it is molded portion, forming part material for molding the insert site in (the corner connecting portions K) the same or equivalent material It is preferable to mold by. In the case of this embodiment, the partition piece P
Is a first cavity portion C ₁ which is a molding space for the trim portion T.
Therefore, it is preferable to mold the trim portion T with a hard rubber which is a molding material. Further, as shown in FIG. 3, the fixed die 10, the slide core 20, and the movable die 3
In the state where 0 is clamped, the connection end face 17 of the fixed mold 10
And the connection end face 22 of the slide core 20 are configured to be flush with each other, and both end faces of the partition piece P set at the above-mentioned portion of the fixed mold 10 are also connected to each of the connection end faces 1
It forms the same plane as 7, 22.

Further, as shown in FIGS. 6 and 7, between the first and second mold plates 11 and 12 constituting the fixed mold 10, the first molding is performed in the first cavity portion C ₁ . The first gate G ₁ for injecting (press-fitting and supplying) the material (molten hard rubber) is provided, and in the mold clamped state, the upper surface of the third mold plate 13 of the fixed mold 10 and the movable mold 30.
Between the lower surface of the second gate G ₂ to emit a second molding material (molten soft rubber) is provided in the second cavity portion C _2.

Further, as shown in FIG. 7, a partition piece P is set in the first cavity portion C ₁ for molding the trim portion T of the corner connecting portion K, and the first cavity portion C is set.
Upper and lower opposed plate forming cavities C constituting _1
1 a and C ₁ b are divided by the partition piece P, and the first molding material supplied through the first gate G ₁ is supplied to the upper facing plate molding cavity C ₁ b. Disappear. Therefore, the upper and lower opposing plate portion forming cavity portions C
₁ a, the C ₁ b, Yes and communicated with the bypass passage V, at the time of molding, first molding material is filled into the bypass passage V, the corner connection portion K from the fixed mold 10 is a molded part
When removing, the slight molding portion by the bypass passage V is separated from the corner connecting portion K which is the molding portion.
It

Therefore, as shown in FIG.
_No. 0, the upper facing plate forming cavity C ₁ b
When the fixed piece 10, the slide core 20, and the movable die 30 are integrally assembled and clamped with the partition piece P set in the opening of the fixed die 1, as shown in FIG.
0, the slide core 20, and the cavity C molded by the molding surfaces of the movable die 30 are
A first cavity portion C ₁ for molding the trim portion T,
A second cavity portion C ₂ for molding the tubular seal portion S
It is divided into and separated. Further, as shown in FIG. 3, the connection end surface 17 of the fixed mold 10, the connection end surface 22 of the slide core 20, and the end surface Pa of the partition piece P constitute the same plane, and the cavity is formed in the same plane. Both ends of C are open.

When the fixed die 10, the slide core 20, and the movable die 30 are clamped, the fixed die 10
The projecting portions 18a at both ends of the center core portion 18 project perpendicularly to the connecting end surface 17 of the center core portion 18,
When the protruding portions 18a at both ends of 8 are fitted and inserted into the hollow portion of the tubular seal portion S'of the connection portions at both ends of the weather strip W, the cavity C is formed into the weather strip W.
C that is closed by both ends of the cavity C and is opened to the connection end surface of the molding die D (the surface formed by the connection end surfaces 17 and 22 of the fixed die 10 and the slide core 20).
End face opening and the trim part T'of the weather strip W
And the tubular seal portion S ′ are in a matched state. However, as described above, since the cross-sectional shapes of the corner connecting portion K and the weather strip W do not completely match, the lip portion 52 ′ and the tubular seal which are not provided in the corner connecting portion K of the weather strip W are formed. A part of the portion S ′ contacts the connection end surface 17 of the fixed mold 10.

In the above state, when the molten hard rubber is injected from the first gate G ₁ to the first cavity portion C ₁ and the molten soft rubber is injected from the second gate G ₂ to the second cavity portion C ₂ , As shown in FIGS. 8 and 9, the first
Since the second cavity portions C ₁ and C ₂ are completely separated by the partition piece P, at the molding boundary portion where the partition piece P is set, one molding material is different from the other molding material. Without flowing into the cavity portion (molding space portion), the first and second cavity portions C ₁ and C ₂
Different materials (molten hard rubber and molten soft rubber) are respectively injected. Note that the first cavity portion C ₁ of the upper facing plate portion molding cavity C ₁ a, the molten hard rubber is injected through the bypass passage V from facing plate portion molding cavity C ₁ a lower .

Here, the first and second cavity parts C
Different molding materials may be simultaneously injected into ₁ and C ₂ , or may be injected with a predetermined time lag. However, in the present invention , since the cavity C of the molding die D is completely divided into two by the partition piece P,
Since different molding materials can be simultaneously injected into the _first and _second cavities C ₁ and C ₂ , simultaneous injection is preferable from the viewpoint of improving molding efficiency.

Then, after a predetermined time has elapsed after the injection of the molding material, the slide core 20 is slid in the backward direction and the movable die 30 is separated from the fixed die 10, so that the formed corner connection portion K is formed. Since it remains in the fixed mold 10, when the molded corner connecting portion K is pulled out in the backward direction of the slide core 20, as shown in FIG.
As shown in FIG. 5, the surplus molding portion 41 molded in the bypass passage V is divided into the corner connecting portion K which is a molding portion, remains in the bypass passage V as it is, and is a molding portion. Only the corner connecting portion K is separated from the fixed mold 10, and both ends of the intermediate product of the weather strip having a predetermined length are connected via the corner connecting portion K, and the weather strip W which is a molded product is manufactured. Here, the core portion 18 of the fixed die 10 is composed of a plurality of separable members, and the fixed die 10 is formed into a molding portion (corner connection portion K).
Can also be taken out easily.

As described above, according to the present invention , due to the presence of the partition piece P, one molding material does not flow into the cavity of the other molding material at the molding boundary portion where the partition piece P is set. , The first and second cavities C ₁ and C ₂ are respectively injected with different materials (molten hard rubber and molten soft rubber), so that the appearance of the molding boundary portion is enhanced and the tubular seal portion S is formed. There is no problem such as a decrease in elastic deformation force due to the inflow of molten hard rubber into the, and its function is enhanced.

Further, the partition piece P which has partitioned the cavity C of the molding die D is buried in the trim portion T of the corner connection portion K as it is, and is hardly exposed to the outside. Further, both end surfaces of the partition piece P are connected to and embedded in the trim portion T ′ of the weather strip W. Therefore, even if the partition piece P is embedded in the molded corner connection portion K, there is no problem at all.

[0028]

In the above embodiment, since the partition piece is embedded in the trim portion T of the weather strip W, the material of the partition piece is molded with hard rubber of the same material as the trim portion T. The partition piece may be made of hard rubber and a material having adhesiveness. Further, in order to improve the adhesiveness to the molding material, this partition piece may be coated with an adhesive on the surface, roughened, or molded with a sponge body.

FIG . 11 and FIG. 12 respectively show a molding die D '.
FIG. 6 is a cross-sectional view of the molding part of FIG. This mold D '
Is the structure of the slide core 20 'and the first cavity portion C.
Except for the presence or absence of the bypass passage V in ₁ , all the other configurations are the same as those of the molding die D, and therefore, the same parts as those described above are designated by the same reference numerals to avoid duplication and different. Only the part will be described in detail. That is, the slide core 20 'constituting the molding die D'is vertically divided into two parts at the molding boundary portion between the trim portion T of the corner connecting portion K and the tubular seal portion S, which is a molded product, and slides on the trim portion side. The core portion 20'a and the slide core portion 20'b on the tubular seal portion side are configured to be slidable independently of each other. Therefore, the curved protrusion 23 is integrally provided on the slide core portion 20'b on the tubular seal portion side. Further, in the fixed mold 10 ′ of the molding die D ′, in the first cavity portion C ₁ , the bypass passage V that connects the upper and lower opposing plate portion molding cavity portions C ₁ a and C ₁ b is
Not provided.

In the state shown in FIG. 11, the slide core 20 'has a slide core 2 on the trim side.
0'a is arranged at a regular molding position, and the first cavity portion C ₁ is formed by the molding surfaces of the slide core portion 20'a and the fixed mold 10, and the slide on the tubular seal portion side is provided. The core portion 20'b is slid further forward from the regular molding position, and the tip end surface of the curved bent ridge 23 at the extreme end of the core portion 20'b forms the base portion of the tubular seal portion S on the molding surface 16 of the fixed mold 10. It is in contact with the part to be. This allows
The molding boundary between the trim portion T and the tubular seal portion S is closed by the curved ridge 23 to form a first cavity portion C ₁ for molding the trim portion T. In this state, the first gate is formed. The first molding material (molten hard rubber) is injected from G ₁ into the first cavity C ₁ to mold the trim portion T in advance.

Next, after the first molding material injected into the first cavity portion C ₁ has cooled to a predetermined temperature, as shown in FIG. 12, the slide on the tubular seal portion side which has closed the molding boundary portion. Retract the core part 20'b to the molding position,
The second cavity portion C ₂ is formed. Then, in this state, the second molding material (molten soft rubber) is injected from the second gate G ₂ into the second cavity portion C ₂ to mold the tubular seal portion S. The second cavity portion C ₂ is connected to the molded trim portion T, but since the first molding material that molds the trim portion T is cooled to a predetermined temperature, it is in a molten state. 2. The molding material does not flow into the molded trim portion T, and at the molding boundary portion between the trim portion T and the tubular seal portion S, one molding material does not flow into the molding portion of the other molding material. And a clear molding line appears.

In the present specification, the term "rubber" is not limited to synthetic rubber but includes TPE, resin and the like.

[0034]

INDUSTRIAL APPLICABILITY The present invention provides two types of hard and soft materials.
Inject the rubber material into the same mold to
-Connect both ends of the strip intermediate product and
When molding the corner connection part of the
At the boundary of each cavity that forms the seal part, a partition
Since the base is set and injection molded, two different types of
At the molding boundary of the rubber material, one rubber material
The material is prevented from flowing into the cavity,
Weather strike with enhanced function and appearance
It is possible to mold the cup.

Also, corner connection of weather strip
The first cavity part that molds the part corresponding to the trim part
It is divided into two dividing cavities with a cutting piece.
Even the hard rubber material goes all the way through the bypass passage
Since it is filled in, the part corresponding to the trim part can be formed without hindrance.
Wear.

[Brief description of drawings]

FIG. 1 is a plan view showing a state where a corner connecting portion K of a weather strip W is molded using a molding die D (however, a movable die 30 is removed).

FIG. 2 is a perspective view showing a fixed die 10, a slide core 20, and a partition piece P that form a molding die D.

FIG. 3 is a perspective view showing a state in which a molding die D is integrally assembled and clamped.

FIG. 4 is a perspective view of a slide core 20 constituting a molding die D as viewed from a molding surface 21 side.

FIG. 5 is a perspective view of a movable die 30 that constitutes a molding die D as seen from below.

FIG. 6 is a sectional view of a molding portion of a molding die D in a demolded state.

FIG. 7 is a cross-sectional view taken along line XX of FIG. 1, showing a molding portion of the molding die D in a molding state (mold clamping state).

FIG. 8 is a cross-sectional view showing a flow of a molding material (molten hard rubber) in the first cavity portion C ₁ .

FIG. 9 is a cross-sectional view showing a flow of a molding material (molten soft rubber) in the second cavity portion C ₂ .

FIG. 10 is a cross-sectional view of the molded corner connection portion K.

FIG. 11: The first molding material is injected into the first cavity portion C ₁ in a state where the molding boundary portion between the trim portion T and the tubular sealing portion S is closed by the slide core portion 20′b on the tubular sealing portion side. It is sectional drawing which shows the state.

FIG. 12 is a cross-sectional view showing a state where the slide core portion 20′b on the tubular seal portion side is retracted to a regular molding position and the second molding material is injected into the second cavity portion C ₂ .

FIG. 13 is an overall view of a weather strip W in which a corner connection portion K is molded and formed into a frame shape.

14 is a cross-sectional view taken along the line Y ₁ -Y ₁ of FIG.

15 is a cross-sectional view taken along the line Y ₂ -Y ₂ of FIG.

FIG. 16 is a schematic diagram showing a conventional method for molding a corner connection portion by two types of molding dies.

FIG. 17 is a perspective view mainly showing a molding boundary portion when two types of molding materials are simultaneously injected into the same mold.

FIG. 18 is a cross-sectional view of the same.

[Explanation of symbols]

C: Cavity C ₁ : First Cavity C ₂ : Second Cavity D, D ': Mold K: Corner Connection (Mold) P: Partition Piece S: Tubular Seal of Corner Connection S': Weather Tubular seal portion of strip T: Trim portion of corner connection portion T ': Trim portion of weather strip W: Weather strip (molded product) 20, 20': Slide core 20'a: Slide core portion 20'b on trim side : Slide core part 23 on the tubular seal part side: Curved ridge

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI // B29L 31:30 B60J 5/00 501G (58) Fields surveyed (Int.Cl. ⁷ , DB name) B29C 45/00- 45/84

Claims (4)

(57) [Claims] 1. A vehicle body or a flange portion of a door of a vehicle
A hard rubber trim that can be removed and elastically deforms to seal
The soft rubber seal that performs the function along the longitudinal direction
The length of a long weatherstrip intermediate product integrally molded
A corner is formed between the ends in the hand direction by injection molding a rubber material.
Form and connect the ends together at the corners
In the method of manufacturing a weather strip, the injection mold for forming the corner part is
A cavity with a shape corresponding to the corner is formed.
The cavity against the trim portion of the corner.
A first cavity portion forming a corresponding portion, and the seal
And a second cavity part forming a part corresponding to the part.
The first cavity part and the second cavity part are trim parts.
Continuing at the boundary between the corresponding portion and the seal portion, the first cavity portion is set at the boundary portion.
Each divided cavity part divided into two by the cutting piece
And a bypass passage connecting the two dividing cavities
And a partition panel along the boundary when the mold is open.
The mold, tighten the mold, and tighten the mold.
A cutting piece is used to divide the cavity into the first cavity portion and the first cavity portion.
The first cavity is divided into two cavities.
Hard rubber material in the second part and soft rubber material in the second cavity part.
The hard rubber material injected from the separate injection gates into the first cavity is
Note One of the two divided cavities
The hard rubber material injected into the
So that it will flow into the other dividing cavity.
Corner part and the partition piece.
Between the part corresponding to the trim part and the part corresponding to the seal part
Made of weatherstrip characterized by being integrated
Build method. 2. A weather according to claim 1, wherein said after injection of hard rubber material to the first cavity portion which is partitioned by the partition pieces, by injection of the soft rubber material into the second cavity portion similar Strip manufacturing method. 3. A hard rubber material and a soft material are respectively placed in the first and second cavities partitioned by the partition piece.
The method of manufacturing a weather strip according to claim 1, wherein the rubber material is simultaneously injected. 4. The partition piece is a portion corresponding to the trim portion.
Minute or the material forming the seal-corresponding part
Characterized by being made of the same or equivalent material as one
The weathers according to any one of claims 1 to 3.
Trip manufacturing method.