JP3360301B2 - Hood seal member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood seal member for sealing a gap between a front portion of a hood of a vehicle and a radiator grill or a headlamp to prevent wind noise or the like during traveling.

[0002]

2. Description of the Related Art Conventionally, this type of hood seal member is mounted on a hood 101 of a vehicle as shown in FIG. That is, in FIG.
The reinforcing plate 105 fixed to the front part 103 of the first
The hood seal member 107 is attached by a clip 109. The hood seal member 107 includes an attachment base 111 made of solid rubber attached to the reinforcing plate 105 and an elastic sealing portion 113 made of sponge rubber.
The gap between the hood 101 and the upper part of the head lamp 115 or the radiator grill 117 is sealed by the elastic deformation of the elastic sealing portion 113.

In recent years, as shown in FIG. 6, a hood 101 of a vehicle has a central portion 12 of a front portion 103.
There is a style in which 1 is a gentle curved portion 123 and covers about half of the radiator grill 117. The hood 101 is provided with a hood seal member 125 illustrated in FIG.
The following technique is known as a method for forming the hood seal member 125. First, a mounting base 111 made of solid rubber and an elastic sealing part 11 made of sponge rubber are used.
3 is formed by extrusion, and this is used as it is in the direct molding portion 127. Next, the ends of the straight molded portion 127 of the extruded product are inserted into both sides of the mold cavity, and sponge rubber is injected into the cavity formed therebetween to form the curved molded portion 129. (See FIG. 8). However, in the hood seal member 125, since the elastic sealing portion 130 of the bent portion 129 is molded, a step is formed between the hood seal member 125 and the elastic sealing portion 130 of the straight molding portion 127. Curved portion 123 of hood 101
However, there is a problem that the follow-up performance in the above-mentioned method is reduced and the sealing becomes insufficient.

Further, as a technique for solving this problem, there is the following technique. That is, similarly to the above-described prior art, after forming the extruded body (FIG. 10A),
As shown in FIG. 9, a portion 131 (shown by a broken line) of the mounting base 141 is cut out while leaving the elastic sealing portion 113 at a position to be the bent portion 129 (FIG. 10B). Next, the cut portion 131 and its peripheral portion are placed in a mold, and sponge rubber is injected into a part of the cut portion 131 to mold the mounting base 133 (FIG. 10).
(C)). In this hood seal member, the elastic sealing portion 11
Since No. 3 is continuously extruded, the problem of the step at this portion is eliminated. However, in any of the conventional techniques, since the mounting base 133 of the bent portion 129 is made of sponge rubber, it cannot be attached to the reinforcing plate of the hood at this portion in terms of strength. Mounting holes are formed in the mounting bases 111 and 141 made of solid rubber of the directly formed portion 127, and are mounted with clips or the like. As described above, if the bent portion 129 has no attachment portion, there is a problem that the followability to the hood is not good.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a hood seal member excellent in followability to a curved portion of a hood of a vehicle.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has been made to solve the above-mentioned problems. The present invention is directed to a solid rubber mounting base provided at an inner edge of a front portion of a vehicle hood. A hood seal member that seals between the hood and the front portion of the vehicle with an elastic sealing portion made of sponge rubber integrated with the mounting base, and has a linear portion and a curved shape at the front portion of the hood. in hood seal member having a straight shaped section and the music shaped portions each site is attached, the song molding section, said mounting base
Between the elastic sealing portion, the mounting base and the elastic sealing portion.
Between the vehicle and a part of the mounting base
Sponge rubber connection to the curved part of the hood
Part, the mounting base of the bent part and the elastic sealing part
Is a vehicle hood that is integrally formed with the connecting portion when the connecting portion is molded.
Is shaped to match the curve of the card
And that it features a.

[0007]

The hood seal member of the present invention is mounted on the inner edge of the hood of the vehicle at the mounting base made of solid rubber, and the hood seal member is elastically sealed with sponge rubber integrated with the mounting base. Has a function of sealing a gap with the front part of the horn to prevent generation of wind noise and the like. Further, the hood seal member of the present invention has a configuration in which a straight molding portion and a curved molding portion are continuously attached in the longitudinal direction along the linear shape portion and the curved shape portion of the hood. In this hood seal member, a sponge rubber connection portion is formed between the mounting base and the elastic sealing portion at the bent portion. Sand
That is, a part obtained by cutting off a part of the mounting base in the curved part.
A sponge rubber connection is provided at
Of the curved part so that the shape matches the curved part of the
Since the mounting base and the elastic sealing portion are habited, the vehicle
Following the curved shape of the vehicle hood when mounted on the vehicle hood
It can be attached easily. Therefore, since a part of the solid rubber mounting base is left as a mounting portion, the mounting to the vehicle hood can be firmly performed by this mounting portion, and the bent portion of the hood seal member is connected to the vehicle. It can be attached to the curved part of the hood with good followability.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, preferred embodiments of the present invention will be described below. In FIG. 1 and FIG.
Has a function of sealing following the straight and curved portions of the hood 3 of the vehicle, and has a straight forming portion 5 that follows the straight portion of the hood 3 and a curved forming that follows the curved portion. (See FIG. 6). The direct molding portion 5 includes a mounting base 9 made of solid rubber,
It is configured by integrally molding an elastic sealing portion 11 made of sponge rubber. The bent portion 7 includes a mounting base 13 made of solid rubber, an elastic sealing portion 15 made of sponge rubber, and a connection interposed between the mounting base 13 and the elastic sealing portion 15 and made of sponge rubber. And a unit 17. The hood seal member 1 is attached to a reinforcing plate 19 of the hood 3 by a clip 23 passing through a mounting hole 21.
It is fixed by.

Next, a method of manufacturing the hood seal member 1 will be described with reference to FIG. First, the direct molding part 5 is formed by extrusion molding. For the extrusion molding, a crosshead type extruder 41 is used. That is, the cylinders 43 and 45
The so-called co-extrusion is carried out by simultaneously extruding the EPDM material and the sponge rubber material filled in. Thus, the extruded body 47 shown in the figure is extruded. Next, the extruded body 47 is subjected to a vulcanization treatment. In this step, the extruded body 47
To a microwave heating device (UHF) 4 mainly for heating.
9 and mainly by passing through a hot air vulcanizer (HAV) 51 for keeping heat. Subsequently, after passing through the cooling device 53, the hood seal member 1 is cut into a predetermined length to form the directly formed portion 5 of the hood seal member 1.

Next, a step of forming a curved molded part 7 by processing a part of the straight molded part 5 is performed. First, a step of cutting a part of the mounting base 13 of the extruded body 47 (FIG. 4A) is performed. That is, while leaving a part of the elastic sealing part 15 and the mounting base 13, a part 61 to be the connecting part 17 is cut out (FIG. 4B), and a mounting hole 21 (see FIG. 1) is formed in a part of the mounting base 13. ) Is formed. Subsequently, the cut-out portion 61 and its peripheral portion are set in a mold of an injection molding device (not shown). This mold cavity is
Has a shape that conforms to the curve-shaped portion. Next, the mold is heated to a predetermined temperature, and the cut portion 61 of the mounting base 13 is cut.
Next, a sponge rubber connecting portion 17 is formed by injecting an EPDM material to which a foaming agent has been added. Thus, the bent portion 7 of the hood seal member 1 is completed (FIG. 4C).

In the hood seal member 1 of the above embodiment, both the elastic sealing portions 11 and 15 of the straight molding portion 5 and the curved molding portion 7 are elastically deformed, so that a gap between the hood 3 and the upper part of the head lamp or the radiator grille is formed. Although the sealing is performed, since the elastic sealing portions 11 and 15 of the straight molding portion 5 and the curved molding portion 7 are continuously formed by extrusion, there is no step between them, and thus the sealing property at this portion is excellent. ing. Further, in the conventional hood seal member, since it was fixed by the clip only at the directly formed portion, the followability to the hood was not good, but in the hood seal member 1 of the present embodiment, the bent portion 7 was formed of solid rubber. The mounting base 13 is formed as follows.
However, since it is fixed, the followability of the bent portion 7 to the hood 3 is improved. Further, in order to mold the curved portion 7, the extruded body 47 is set in a mold cavity corresponding to the curved portion of the hood 3.
Sponge rubber is injected into the cut-out portion 61 to form the connection portion 17. The connecting portion 17 is attached to the mounting base 13.
And acts as a habit for the elastic sealing portion 15,
The followability of the hood 3 to the curved portion is further improved. In order to form the curved part 7, the extruded body is set in a mold cavity corresponding to the curved part of the hood 3 and about 1 hour.
Since the extruded body 47 is heated to a molding temperature of 40 ° C. to 150 ° C., the extruded body 47 is softened to be a curved molded part 7 having a shape suitable for the mold cavity, and the followability to the hood 3 is further improved. In addition, the hood seal member 1 is cut away leaving only the mounting base 13 including the mounting hole 21, and sponge rubber, which is lighter than solid rubber, is injected into the cut portion 61 to form the connection portion 17. Therefore, weight reduction can be realized.

[0012]

As described above, according to the hood seal member of the present invention, since a part of the mounting base made of solid rubber is left in the bent portion, the mounting to the vehicle hood is performed at this portion. Therefore, the bent portion of the hood seal member can be attached to the curved portion of the hood in close contact with the curved portion. In addition, a sponge rubber connection portion is formed in the bent portion, and the connection portion acts as a habit to the mounting base portion and the elastic sealing portion as a habit to a shape that matches the curved shape portion of the hood. Follow-up performance is further improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a hood seal member according to the present invention in a partially broken manner.

FIG. 2 is a cross-sectional view showing a peripheral portion of a hood of a vehicle equipped with the hood seal member of the embodiment.

FIG. 3 is an explanatory diagram illustrating a manufacturing process of the hood seal member of the embodiment.

FIG. 4 is a sectional view illustrating a hood seal member according to the embodiment.

FIG. 5 is a cross-sectional view showing a peripheral portion of a hood of a vehicle equipped with a conventional hood seal member.

FIG. 6 is an explanatory view showing the appearance of a vehicle equipped with a hood seal member.

FIG. 7 is an explanatory view showing a conventional food seal member with a part cut away.

FIG. 8 is a cross-sectional view showing a bent portion of a conventional hood seal member.

FIG. 9 is an explanatory view showing another conventional hood seal member, partially cut away.

FIG. 10 is a cross-sectional view illustrating another conventional hood seal member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hood seal member 3 Hood 5 Straight molding part 7 Curved molding part 9 Mounting base 11 Elastic sealing part 13 Mounting base 15 Elastic sealing part 17 Connecting part 21 Mounting hole 23 Clip

Claims (1)

(57) [Claims] 1. A mounting base made of solid rubber is mounted on an inner edge of a front part of a hood of a vehicle, and the hood and a front part of the vehicle are connected by an elastic sealing part made of sponge rubber integrated with the mounting base. a hood seal member for sealing between the straight molding portion and song molding are respectively attached to the site of the site and the curve shape of the linear shape in the front portion of the hood
In the hood seal member having a portion , the bent portion, the mounting base, the elastic sealing portion,
Between the mounting base and the elastic sealing portion and of the mounting base;
In the cut-out part, in the curved shape of the vehicle hood
A sponge rubber connection portion is provided so that the connection base portion and the elastic sealing portion of the bent portion are in close contact with each other.
Curved portion of the vehicle hood integrated with the connection during molding
A hood seal member characterized by being habit-formed so as to conform to a shape .