JP3125551B2 - Glass run and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run attached to a sash provided on a vehicle body or door, and more particularly, to at least two substantially linearly formed extruded portions, The present invention relates to a glass run provided with a mold forming part that interconnects the extruded parts so as to form a predetermined angle.

[0002]

2. Description of the Related Art Generally, a glass run is attached to a sash provided on a vehicle body or a door. A glass seal is formed integrally with the glass run, and the glass seal has a function of sealing between the outside and the inside of the door glass.

Conventionally, for example, as shown in FIG. 11, a glass run 51 is provided with extruded parts 52 and 53 and a mold part 54. That is, the extruded portions 52 and 53 are formed substantially linearly (elongated) by an extruder (not shown). Also, the mold forming part 54 is configured to form the two extruded parts 52 and 53 at a predetermined angle (90 ° in the drawing) and to connect the two 52 and 53 to each other. The mold 55 is formed.

[0004] The mold 55 is a fixed mold 5 located at the lower side of the figure.
6, a core mold 57 located at the center of the figure, a movable mold 58 located at the upper right of the figure, and a slide core 59 located at the left side of the figure.
And a rotary die 60 also located on the left side of the figure. The glass run 51 is formed by these molds 56 to 60.
A cavity 61 for molding the mold molding portion 54 of FIG. Then, the unvulcanized rubber injected into the cavity 61 is vulcanized, so that the mold forming portion 54 is formed.
Is formed. Then, the mold forming portion 54 is attached to a corner portion of the sash.

[0005] However, one corner of the sash is
For example, while being formed strictly at right angles, the mold forming portion 54 is not strictly at right angles due to the convenience of the die, but is formed somewhat curved. Therefore, the glass run 5
In the state where 1 was attached to the sash, there was a possibility that a gap was formed between the sash and the glass run 51 to some extent. As a result, during high-speed driving,
There is a possibility that the air inside the vehicle escapes to the outside of the vehicle and wind noise is generated.

Therefore, conventionally, as a first method for preventing the generation of wind noise, as shown in FIG. 11, an elastic member such as a caulking sponge 62 is adhered to a glass run 51 and the above-mentioned gap is formed. Filling configuration was adopted.

[0007] Alternatively, as a second method, as shown in FIG. 12, at the time of forming the mold, the mold forming section 54 is provided with a portion parallel to the moving direction of the movable mold (in a direction perpendicular to the glass run 51). There is also a method of integrally forming the rib 63 (standing). That is, a configuration is adopted in which the rib 63 is located in the above-described gap.

[0008]

However, in the former first method in the above prior art, it was necessary to separately attach an elastic member such as a caulking sponge 62 . For this reason, the cost is increased by that much, and the attaching work of the glass run 51 is complicated as a whole because the attaching work is separately required.

In the second method, the ribs 63 are erected in a direction perpendicular to the glass run 51.
Even if the rib 63 is attached to the sash, the rib 63 does not bend, and there is a possibility that a sufficient sealing function may not be exhibited. In addition, since the rib 63 that is not easily bent is formed only on the mold forming part 54, there is a possibility that a step may be generated between the rib 63 and the extruded parts 52 and 53 when the rib 63 is attached to the sash. As a result, the wind noise may still be generated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to surely prevent the generation of wind noise during high-speed running. It is an object of the present invention to provide a glass run and a method for manufacturing the same, which can prevent the increase in cost and the complexity of work.

[0011]

In order to achieve the above object, according to a first aspect of the present invention, the side wall portion is formed by extrusion molding.
An extruded part having a base and a substantially U-shaped cross-section and formed in a substantially linear shape, and at least two extruded parts interconnecting each other so as to form a predetermined angle; And a mold forming part formed by a mold molding method so as to have substantially the same cross-sectional shape, and is attached so as to be fitted into a sash provided in a vehicle body or a door, wherein the extruded section and the molding portion, against the inner side surface and the exterior side surface in the peripheral portion of the glass
Each extends from the side wall to touch and seal
The glass run having a glass seal portion made Te, wherein the end face of the base portion is in contact may portion of the end face of the glass of the extruded part and the molding part at the site opposite
The sash is located on the outer surface of the base on the outside of the vehicle.
Seals the gap between the base and the opposing surface at
A sealing lip from the vehicle exterior position on the outer surface of the base of the extrusion molding part and the mold molding part toward the vehicle exterior.
The acute angle I, and has as its gist that are continuously integrally formed over between the two molded parts which are connected to each other.

[0012]

[0013] In the second invention, as to be fitted to a sash provided on the main body or a door of a vehicle
A method for manufacturing a glass run attached to a side wall,
A substantially U-shaped cross section with a base, and a peripheral edge of glass
Forming a substantially linear shape by an extrusion molding an extruded portion having a glass sealing portion formed by each is extended from the side wall to seal in contact with the interior side surface and exterior side surface of the section, at least A step of connecting the two extruded portions so as to form a predetermined angle, and forming a die formed portion having a cross-sectional shape substantially equal to the extruded portion by a die forming method, and At the time of both the steps, the extruded part and the die forming part of the outer surface of the base portion, which is a portion opposite to the inner surface of the base portion, which is a portion that can contact the end surface of the glass , , gap sealing lip for sealing, vehicle outside position of the outer surface of the base portion of the extruded section and the molding portion between the face against the base unit in the sash
It is projected at an acute angle shape toward the vehicle exterior from, and mold growth
And as its gist the concatenating type <br/> formed integrally sealing lips of the two molded parts during the molding of the shaped part.

[0014]

According to the structure of the first aspect of the present invention, the extruded portion of the glass run is formed in a substantially linear shape by an extrusion method, and a substantially linear portion of a sash provided in a vehicle body or a door is mainly provided. Attached to. In addition, the mold section of the glass run connects the two at least two of the extruded sections so as to form a predetermined angle, and has a cross-sectional shape substantially equal to that of the extruded section. Therefore, the glass runs are continuous as a whole. Further, the glass inside and outside of the glass are sealed by the glass seal portions in the extrusion molding portion and the mold molding portion.

According to the present invention, a portion of the extruded portion and the molded portion opposite to the portion with which the glass can abut.
The sash on the outside of the base
A seal lip for sealing a gap between the base portion and an opposing surface is provided at a position outside the vehicle on the outer surface of the base portion.
And the seal lip is formed so as to be continuous and integrated along the direction in which the extruded part and the mold part are connected. ing. For this reason, in places where there is almost no gap, the seal lip can easily be largely bent. Ma
In addition, the sealing lip is
Is more flexible, and further sealing
Is maintained. Further, at corners or the like where the gap is relatively large, the seal lip seals between the sash and the outer surface of the base of the glass run with the amount of deflection of the seal lip being small. Further, since the seal lip is formed continuously and integrally between the two molded portions, there is no step due to the portion without the seal lip, and the generation of a further gap due to the step is suppressed.

In addition, since a member or the like to be separately attached at the time of attachment to the sash is not required at the time of manufacturing, an increase in manufacturing cost and an attaching operation due to the necessity of the separate member are suppressed.

[0017]

[0018] In a second aspect of the present invention, as to be fitted to a sash provided on the main body or a door of a vehicle
Relates glass run being attached to, first, interior side of the glass
The side wall portion to seal in contact with the surface and the vehicle exterior side surface
Extruded portions each having a glass seal portion extending therefrom are formed substantially linearly by an extrusion molding method. Next, the at least two extruded portions are connected so as to form a predetermined angle, and a mold formed portion having a cross section substantially equivalent to the extruded portion is formed by a mold forming method.

In the present invention, in both of the steps, the extruded portion and the die-formed portion are provided with the end faces of the glass.
A portion of the base portion opposite to the inner surface of the base portion which can be in contact with the portion
The vehicle outside position of the outer surface of the base unit is, sea the gap between the surface against the base unit in the sash
Sealing lip for Le is the toward the vehicle outer side from the vehicle outside position of the outer surface of the base portion of the extruded portion and molding unit
It protrudes at an acute angle, and both
The seal lip of the molded part is integrally connected and formed. Therefore, at the time of using and manufacturing the glass run, an operation substantially equivalent to the operation of the first invention is exerted.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 and 3, in a vehicle 2 having a door 1, a glass run 3 made of EPDM (ethylene-propylene-diene copolymer rubber) is attached to the door 1. More specifically, a sash 4 conforming to the outer peripheral shape of the door 1 as shown in FIGS. 8 and 9 is attached to the door 1, and the sash 4 has a substantially U-shaped cross section of the glass run 3. The main body 5 is attached so as to be fitted. The glass run 3 is formed integrally with a glass seal portion 6 extending inward from both ends of the main body portion 5 in addition to the main body portion 5. When the glass (door glass) 7 (see FIG. 8) is closed, the inside and outside of the glass 7 are sealed by the glass seal portions 6. In addition, the glass 7 is provided on the outside of the vehicle in response to a request for improving design (flash surface) in recent years, and is vertically moved at a position as close as possible to the outside surface of the sash 4.

As shown in FIGS. 1 and 3, the glass run 3 is made up of extruded parts 8, 9, 10 and a molded part 11,
12 is provided. That is, the extruded parts 8 to 10
Is formed substantially linearly (in a long shape) by an extruder (not shown). Further, the mold forming portions 11 and 12 are formed by a mold 13 described later so as to connect the adjacent extrusion forming portions 8 to 10. For example, to explain the α portion in the figure, the two extruded portions 8 and 9 are
And the two 8 and 9 form a predetermined angle (90 ° in the figure). The extruded portions 8 to 10 are attached to a substantially linear portion of the sash 4, and the mold portions 11 and 12 are attached to corners of the sash 4.

As shown in FIGS. 1, 4 and 5, in the present embodiment, the extruded parts 8 to 10 and the mold parts 11, 12
On the other hand, the seal lip 14 is formed integrally at an acute angle (toward the upper side in the figure) and continuously. Further, the seal lip 14 is provided at a relatively outer portion corresponding to a portion where the glass 7 can contact.

Next, the molding part 1 of the glass run 3
The mold 13 for forming the molds 1 and 12 will be described.
As shown in FIGS. 6 and 7, the mold 13 includes a fixed mold 21 located at the lower side of the figure, a core mold 22 located at the center of the figure, a movable mold 23 located at the upper right of the figure, and a left side of the figure. , And a rotary mold 25 also located on the left side of the figure. The core mold 22 and the movable mold 23 are arranged so as to be movable in the vertical direction in the figure. The slide core 24 is provided so as to be slidable in the left and right directions in the figure. Further, the rotary mold 25 has a certain point as a center of rotation.
It is provided rotatably in the direction of the arrow in FIG.

The fixed mold 21, the core mold 22,
The movable die 23, the slide core 24 and the rotary die 25
A cavity 26 is formed for molding the mold parts 11 and 12 of the glass run 3. In the present embodiment, the movable mold 23 and the rotary mold 25 form the seal lip 14. In addition,
Since the portion formed by the slide core 24 is just a design surface, the slide core 24 is made of a hard material that is less likely to be damaged than other types. Therefore, irregularities due to scratches are not easily formed on the design surface of the obtained glass run 3.

Next, a method of manufacturing the glass run 3 having the above configuration will be described. First, the extruded parts 8 to 10 are formed by a known extrusion method using an extruder (not shown). At this time, a seal lip 14 is formed at the same time as the main body 5 and the glass seal 6.

Next, these extruded parts 8 to 10 are
3 is set at a predetermined position, and the mold is clamped. Then, an unvulcanized E is applied to the cavity 26 from a gate (not shown).
PDM is injected and vulcanized. Thereafter, after the EPDM is solidified, the molds 21 to 25 are released as shown in FIG. That is, the movable die 23 is moved upward, the rotary die 25 is rotated in the direction of the arrow in the figure, the slide core 24 is moved leftward in the figure, and the core mold 22 is moved upward in the figure. Then, the above-mentioned extrusion molding parts 8 to 10 and the mold molding parts 11, 1
Thus, a glass run 3 obtained by continuously forming 2 is obtained.
At this time, the seal lip 14 in the mold parts 11 and 12 is formed continuously with the seal lip 14 formed in the extrusion parts 8 to 10.

The glass run 3 thus obtained is:
A seal lip 14 is formed integrally with the extruded parts 8 to 10 and the mold parts 11 and 12 at an acute angle in a part opposite to the glass 7. For this reason, especially the extruded part 8
The body part 5 and the sash 4
In places where there is essentially no gap between the seal lip 14 and the seal lip 14, the seal lip 14 can easily be largely bent. In addition, at a portion corresponding to the mold forming portions 11 and 12, the seal lip 14
The sash 4 and the main body 5
Seal between Furthermore, the seal lip 14 is formed continuously with respect to the extruded parts 8 to 10 and the mold parts 11 and 12. For this reason, there is no occurrence of a step due to the presence of the portion without the seal lip 14, and the occurrence of a further gap due to the step is suppressed.

That is, according to the present embodiment, the occurrence of a gap between the main body 5 and the sash 4 can be prevented at any location. As a result, the generation of wind noise during high-speed running can be reliably prevented.

In this embodiment, the seal lip 14
Is provided at a relatively outer portion of the vehicle corresponding to a portion of the glass 7 that can contact. For this reason, the sealing lip 14 becomes more flexible due to the pressing force when the glass 7 comes into contact, and it is possible to further secure the sealing property.

Further, according to the method of manufacturing the glass run 3 of the present embodiment, when manufacturing the mold forming parts 11 and 12 having the seal lip 14 in the mold 13, in particular, the conventional technique is used. Can be formed without increasing the number.

Further, when attaching the glass run 3 to the sash 4, a separate attaching member such as a sponge as in the prior art is not required separately, so that the production due to the necessity of attaching the separate member is required. It is possible to suppress an increase in cost, and it is possible to save labor such as sticking work. As a result, it is possible to prevent an increase in cost and a complicated operation at the time of attachment.

It should be noted that the present invention is not limited to the above-described embodiment, and may be carried out as follows by appropriately changing a part of the configuration without departing from the spirit of the invention. (1) In the above embodiment, the glass run 3 is embodied by the three extrusion parts 8 to 10 and the two mold parts 11 and 12, but the number is not limited. Absent. Therefore, for example, a glass run may be composed of two extruded parts and one die molded part connecting them.

(2) In the above embodiment, the glass run 3 is
Was constructed by PDM, soft polyvinyl chloride, polyblends such as may be composed of a material having its other rubbery elasticity.

(3) In the above embodiment, the glass run 3 is attached to the sash 4 attached to the door 1, but the sash may be provided on the vehicle body.

[0035]

As described above in detail, according to the glass run and the method of manufacturing the same according to the present invention, it is possible to reliably prevent the generation of wind noise during high-speed running. This leads to an excellent effect that the cost can be prevented from increasing and the operation can be prevented from becoming complicated.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a glass run according to an embodiment of the present invention.

FIG. 2 is a side view of the vehicle showing a state in which a glass run is attached in one embodiment.

FIG. 3 is a side view schematically showing a glass run in one embodiment.

FIG. 4 is a sectional view taken along line AA of FIG. 1 in one embodiment.

FIG. 5 is a sectional view taken along the line BB of FIG. 1 in one embodiment.

FIG. 6 is a partial cross-sectional view showing a mold for molding a mold section of a glass run in one embodiment.

FIG. 7 is a partial cross-sectional view of a mold or the like showing a state in which a mold section of a glass run is molded in one embodiment.

FIG. 8 is a cross-sectional view showing a state in which a glass run is attached to a sash in one embodiment.

FIG. 9 is a partial perspective view showing a state in which a glass run is attached to a sash in one embodiment.

FIG. 10 is a partial cross-sectional view showing a mold for forming a glass run mold forming portion in the conventional technique.

FIG. 11 is a partial perspective view showing a state in which a caulking sponge is adhered to a molding part of a glass run in a conventional technique.

FIG. 12 is a partial perspective view showing a state in which a rib is provided upright on a mold portion of a glass run in a conventional technique.

[Explanation of symbols]

1 ... vehicle, 2 ... door, 3 ... glass run, 4 ... sash,
7: Glass, 8, 9, 10 ... Extruded part, 11, 12 ...
Mold forming part, 14 ... seal lip.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) B29D 31/00 B29C 47/58 B60J 1/16

Claims (2)

(57) [Claims] A side wall and a base are provided by an extrusion molding method.
In addition, an extruded part (8, 9, 10) formed in a substantially U-shaped cross section and a substantially linear shape, and at least two extruded parts (8, 9, 10) are mutually connected so that they form a predetermined angle. The mold forming parts (11, 1) formed by a mold forming method so as to be connected and have substantially the same cross-sectional shape as the extruded parts (8, 9, 10).
2), and is attached so as to be fitted into a sash (4) provided on a main body or a door (2) of the vehicle (1), and the extruded portions (8, 9, 10) and metal are provided. In the molded part (11, 12), the periphery of the glass (7)
For sealing contact with the definitive vehicle interior side surface and exterior side surface
In a glass run having a glass seal portion (6) extending from the side wall portion , the extruded portion (8, 9, 10) and the die formed portion (1).
(1) A contactable part of the end face of the glass (7)
It said group and the inner surface of said base portion is a portion on the opposite side
The sash (4) should be
A sealing lip (14) for sealing a gap between the base portion and an opposing surface of the extruded portion (8, 8).
9, 10) and the base part of the mold forming part (11, 12)
The two molded portions (8, 9, 10, 11, 11) are connected to each other at an acute angle from the vehicle exterior position on the outer surface of the vehicle toward the vehicle exterior .
12) A glass run which is continuously and integrally formed between the glass runs. 2. A vehicle (2) provided on a main body or a door (1).
Attached to the sash (4)
A glass run having a substantially U-shaped cross-section including a side wall and a base.
(7) in contact with the inside and outside of the vehicle at the periphery
To extend from the side walls to seal
Extruded part (8,
(9, 10) is formed almost linearly by extrusion.
And at least two of said extruded parts (8, 9, 10)
Interconnect with each other to form a fixed angle, and
It has almost the same cross-sectional shape as the molded parts (8, 9, 10)
Mold forming parts (11, 12) are formed by a mold forming method.
And extruding at the time of both steps.
Of the shape part (8, 9, 10) and the mold part (11, 12)
The base, which is a contactable part of the end face of the glass (7);
Of the outer surface of the base, which is the part opposite to the inner surface of the bottom
The base on the sash (4) is located at the vehicle outside position.
To seal the gap between the part and the opposing surface
A lip (14) is attached to the extruded portions (8, 9, 10) and
Outside of the base of the base of the die and mold forming part (11, 12)
From the side position to the outside of the car at an acute angle, and
Sealing of both molding parts when molding mold parts (11, 12)
The lip (14) is integrally connected and formed.
A method for producing glass runs.