JP2003094952A - Weatherstrip shielding mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the shielding effect of a weatherstrip shield made of rubber to fill a gap between a vehicle body and a door and to enhance the effect of absorbing and suppressing impact and impulsive sound or wind noise when closing the door. SOLUTION: In the weatherstrip shield 13 made of rubber and provided on the vehicle body side 11 or the door side 12 to fill and shield the gap formed between the vehicle body 11 and door 12, a sound absorbing material 14 with a sound absorbing effect is provided in a cavity part inside, and the rubber material 16 of an outer enclosure of the weatherstrip shield is provided with a large number of pores 15 piercing into the inner sound absorbing material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a conventional rubber weatherstrip shield with a sound-absorbing material having a sound-absorbing effect in the inner cavity portion thereof to suppress the generation of noise due to wind noise when a vehicle is traveling, and to absorb or close the door. The present invention relates to a rubber weatherstrip shield mechanism that suppresses absorption of sound generated when closing.

[0002]

2. Description of the Related Art A conventional rubber weatherstrip shield has a hollow inside so as to uniformly fill a gap formed between a vehicle body and a door by utilizing flexibility of rubber. Further, by making the inside of the rubber weatherstrip shield hollow, the weatherstrip shield itself has a cushioning effect to reduce the impact on the vehicle body when the door is closed.

[Problems to be Solved by the Invention]

However, as a structure in which a rubber weatherstrip shield is used to uniformly fill the gap between the vehicle body and the door for shielding, and the inside is hollowed in order to give flexibility to the weatherstrip shield itself. However, if the rubber thickness of this weatherstrip shield is reduced, the gap between the vehicle body and the door is evenly filled, and the denseness of the shield tends to be impaired.
Therefore, it is necessary to increase the thickness of the rubber in order to improve the shielding effect for filling the gap between the vehicle body and the door. Furthermore, with regard to the cushion effect that reduces the impact on the vehicle body when closing the door by the rubber weather strip shield, if the rubber thickness of this weather strip shield is made thin, the repulsive force due to the rubber thickness tends to be lost and the cushion effect tends to be impaired. There is. Therefore, in order to improve the shielding effect, it becomes necessary to increase the thickness of rubber as well. In addition, as a recent trend, development competition is being conducted to reduce the generation of wind noise between the vehicle body and the door, reduce the noise generated when the door is closed, and make the door open and close quietly. The present invention has been made by paying attention to the problems existing in the above conventional techniques. The aim is to evenly fill the gap between the vehicle body and the door to enhance the shielding effect and reduce the generation of wind noise while reducing the noise generated when the door is closed, resulting in a quiet door opening and closing noise. Another object of the present invention is to provide a weatherstrip shield mechanism for an automobile, in which the weatherstrip shield has a sound absorbing effect.

[0004]

According to a first aspect of the present invention, in a rubber weather strip shield provided on a vehicle body side or a door side to shield a gap formed between a vehicle body and a door. , A sound absorbing material having a sound absorbing effect is provided in the inner hollow portion of the rubber weather strip shield having a hollow inside to suppress the generation of noise due to wind noise when the vehicle is traveling. It is characterized in that it is configured to suppress the absorption of the sound.

According to the first aspect of the invention, there is a slight gap between the vehicle body of the automobile and the door. A weatherstrip shield is provided in order to uniformly fill and fill this gap. The weatherstrip shield also has a cushioning effect on the vehicle body when the door is closed. This weather strip shield has a hollow inside, but by installing a sound absorbing material with a sound absorbing effect in the inner hollow part of the weather strip shield and making it a double structure, when the car runs without impairing the shielding effect The sound absorbing material suppresses and absorbs the noise generated by the generated wind noise. Furthermore, the shock absorption effect when the door is closed is improved by the cushioning effect of the sound absorbing material inside the weatherstrip shield having a double structure and the air held in the sound absorbing material.

A second aspect of the present invention is a sound absorbing material having a sound absorbing effect in the inner hollow portion of the rubber weatherstrip shield having a hollow inside, and a foam represented by urethane or polyethylene and melanin. It is characterized by using wood.

According to the second aspect of the invention, the foamed material represented by urethane or polyethylene and melanin, which is one of the sound absorbing materials having a sound absorbing effect, is provided in the inner hollow portion of the rubber strip shield having a hollow inside. Is installed. The appearance of this foam material with a sound absorbing effect is intricate with spaces. The sound or vibration impact sound is confined in the foaming agent with many spaces to weaken the vibration force of the sound, and the uncomfortable sound transmitted through the slight gap between the car body and the door is accurately absorbed and suppressed. . The foaming agent itself is
Since many spaces are intricate, the effect of cushioning effect can be obtained, and when the door is closed, the impact and impact sound on the vehicle body are absorbed and absorbed.

The third aspect of the present invention is typified by a felt material or a PET fiber material as a sound absorbing material having a sound absorbing effect in the inner hollow portion of the rubber weather strip shield having a hollow inside. It is characterized by using a fibrous sound absorbing material.

According to the third aspect of the invention, a fiber represented by a felt material or a PET fiber material, which is one of sound absorbing materials having a sound absorbing effect, is provided in the inner hollow portion of the rubber strip shield having a hollow inside. A sound absorbing material is installed. The appearance of this fibrous sound-absorbing material having a sound-absorbing effect is intricate due to the fact that the space is finely divided. Sound or vibration impact sound is confined in the fiber sound absorbing material with many spaces to weaken the vibration force of the sound and accurately suppress the absorption of uncomfortable sound transmitted through a slight gap between the car body and the door. ing. Since the fiber-based sound absorbing material itself has many intricate spaces, it is possible to obtain a cushioning effect.
When the door is closed, it absorbs impacts and shock noises on the vehicle body.

In a fourth aspect of the present invention, a sound absorbing material having a sound absorbing effect is provided in a hollow portion of the rubber weather strip shield having a hollow inside, and a resin-based foam filling represented by an epoxy resin. It is characterized by using wood.

According to the fourth aspect of the present invention, a resin foam filling material represented by an epoxy resin, which is one of sound absorbing materials having a sound absorbing effect, is provided in the inner hollow portion of the rubber strip shield having a hollow inside. Is installed. The appearance of this resin-based foaming filler having a sound absorbing effect is intricate with spaces. Sound or vibration impact sound is confined in the resin foam filling material with many spaces to weaken the vibration force of the sound and accurately suppress the absorption of unpleasant sound transmitted through the slight gap between the car body and the door. Is going. The resin foam filler itself may have many intricate spaces,
The cushioning effect can also be obtained, and when the door is closed, the impact and impact noise on the vehicle body are absorbed and absorbed.

A fifth aspect of the present invention is characterized in that the rubber weather strip shield itself having a sound absorbing material having a sound absorbing effect inside thereof is provided with a large number of pores penetrating to the inner sound absorbing material.

According to the fifth aspect of the invention, the rubber weatherstrip shield itself, which accommodates the sound absorbing material having the sound absorbing effect inside, is provided with a large number of pores penetrating to the inner sound absorbing material. The large number of pores provided in the weatherstrip shield itself has a kind of air-bleeding action for obtaining a cushioning effect in the weatherstrip shield when the door is closed. In addition, the large number of pores provided in the weatherstrip shield itself is due to the noise or vibration that is transmitted to the inside of the weatherstrip shield while the car is running, such as wind noise, and the impact that occurs when the door is closed. It has a structure that transmits sound and suppresses or reduces absorption.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an automobile weatherstrip shield facility embodying the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, the weather strip shield facility 13 in an automobile is attached to either the vehicle body side 11 or the door side 12 or to both the vehicle body side 11 and the door side 12 with each other. A method is used in which they are arranged so that they cross each other. In FIG. 1 and FIG. 2, for convenience, only the weather strip shield facility 13 at one point is shown, but similar weather strip shield facilities 13 are arranged at other places in the vehicle. Note that FIG. 3 is a partial cross-sectional view of the weather strip shield 13 when the door is open.

As the structure of the weather strip shield equipment installed on the vehicle body of an automobile, the sash portion 12 of the window glass on the door side and the steel sheet 1 on the vehicle body side facing the sash portion 12 are disposed.
1 and the sash portion 12 of the window glass on the former door side
And the weather strip shield 13 for uniformly filling and shielding a small gap generated between the steel plates on the vehicle body side 11 and the latter.

The weather strip shield 13 has an effect of uniformly pressing the rubber when the door 12 is closed to enhance the airtightness, and a cushion effect for the vehicle body by releasing the air pressure from the inside of the weather strip shield when the door 12 is closed. In order to accompany it, innumerable air vents (holes) 15 are provided. Further, as a facility for absorbing and suppressing various sounds or vibrations, a sound absorbing material 14 is embedded in the inner hollow portion of the weather strip shield 13. The weather strip shield 13 has a double structure including an outer rubber material 16 and an inner sound absorbing material 14.

Therefore, when the door is closed,
Next to the steel plate 11 on the vehicle body side, there is a weather strip shield outer rubber material portion 16 and subsequently a sound absorbing material portion 14 embedded in the inner cavity portion, again a weather strip shield outer rubber material portion 16 and a door side sash portion 12.

The material of the sound absorbing material 14 embedded in the inner cavity portion of the weather strip shield 13 is a foam material represented by urethane, polyethylene, melanin or a felt material, or a fiber type sound absorbing material represented by PET fiber material and epoxy. Examples include resin-based foam fillers represented by resins. The specific sound quality or vibration generated due to the difference in the size and shape of the vehicle body changes. In order to cope with the peculiar sound quality or vibration generated due to the difference in the size and shape of the vehicle body, the optimum material of the sound absorbing material 14 is selected from the materials of the various sound absorbing materials described above at the automobile design stage. .

By the way, the weather strip shield 1
Although the rubber material 16 that forms the outer shell of 3 has excellent shielding and cushioning effects that evenly fill the gaps, noise that is transmitted from the outside to the inside of the vehicle such as wind noise generated when the vehicle is running, or impact noise when the door is closed. There is a certain limit to the absorption suppression. Therefore, in order to accurately absorb and process unpleasant sounds to be removed such as wind noise or impact sound that exceeds the limit of absorption suppression in the rubber material 16 that forms the outer shell of the weather strip shield 13,
It is considered that the combined use method in which the sound absorbing material 14 having a high absorption effect is combined is effective.

According to this combined use method, the weather strip shield 13 having a cavity inside and a plurality of pores 15 arranged on the surface and penetrating to the inside are arranged, and sound is absorbed in the portion where the inside is a cavity. The material 14 is embedded and has an integrated structure. Sound absorbing material 1 embedded in the inner cavity
No. 4 is intricate with a small space inside. The numerous intricate spaces have the advantage of serving as a cushioning material that absorbs shocks. The impact generated when the door 12 is closed is weakened by the reaction of the rubber material 16 forming the outer shell of the weather strip shield 13, and at the same time, a two-stage impact mitigation action is exerted by the repulsive force against the expansion and contraction of the sound absorbing material 14 inside. Furthermore, the sound absorbing effect of the sound absorbing material 14 also properly absorbs and suppresses the impact sound generated at this time. That is, the impact and the impact sound generated when the door 12 is closed are transmitted to the weather strip shield 13
The two different materials, that is, the rubber material 16 forming the outer shell and the sound absorbing material 14 on the inner side of the rubber material 16 mutually act to suppress the absorption of impact and impact sound and provide a quiet door 12 opening and closing noise. Furthermore, this combined use method has a structure in which the rubber thickness of the rubber base 16 forming the outer shell of the weather strip shield 13 can be reduced.

The present invention can be embodied in another embodiment shown below.

In the present embodiment, the description has been given to the door of the automobile, but it can also be applied to each seal portion in the engine hood or the trunk which is the opening / closing portion of another automobile. In this case as well, as described above, the weather strip shield having the sound absorbing material 14 embedded in the inner hollow portion is installed at the end of the steel plate. Even in this case, at the same time as the above-described shield effect, the impact and impact sound generated when the door is closed can be suppressed from being absorbed, and a quiet door opening and closing sound can be provided.

[0024]

According to the first aspect of the present invention, the weatherstrip shield is made of rubber and has a double structure in which a sound absorbing material having a sound absorbing effect is embedded in the inner cavity of the weatherstrip shield. Without damaging the shield effect of the shield, it is possible to appropriately suppress the absorption of noise due to wind noise generated when the vehicle is running and to absorb and reduce the shock and impact sound generated when the door is closed.

According to the second aspect of the present invention, a foam material represented by urethane, polyethylene or melanin, which is one of the sound absorbing materials having a sound absorbing effect, is embedded and installed in the inner cavity portion of the rubber strip shield so that the foam is formed. By utilizing the effect of the space that is intricately embedded in the material, it is possible to accurately suppress unpleasant noise such as wind noise that is transmitted through the slight gap between the vehicle body and the door, and to prevent impact on the vehicle body when the door is closed. Impact noise can be absorbed and absorbed.

According to the third aspect of the present invention, a fiber sound absorbing material typified by a felt material or a PET fiber material, which is one of sound absorbing materials having a sound absorbing effect, is embedded and installed in the inner cavity portion of the rubber strip shield. , By utilizing the effect of the space intricately embedded in this fiber-based sound absorbing material, it is possible to accurately absorb and suppress unpleasant noise such as wind noise that is transmitted through a slight gap between the vehicle body and the door when closing the door. It is possible to absorb and absorb the impact and impact sound on the vehicle body.

According to the fourth aspect of the present invention, a resin type foam filler represented by an epoxy resin, which is one of the sound absorbing materials having a sound absorbing effect, is embedded and installed in the inner cavity portion of the rubber strip shield. By utilizing the effect of the space that is finely intricately embedded in the system foam filler, it suppresses the absorption of unpleasant noise such as wind noise that is transmitted through the slight gap between the vehicle body and the door, and it is applied to the vehicle body when the door is closed. It can absorb and absorb the impact and impact sound.

According to the fifth aspect of the invention, the rubber material of the rubber weatherstrip shield is provided with a large number of pores penetrating to the inside sound absorbing material, so that the weatherstrip shield itself has flexibility and a cushioning effect when the door is closed. In addition to noise, wind noise such as wind noise that is transmitted while the vehicle is running or impact noise that occurs when the door is closed is transmitted to the sound absorbing material installed inside the rubber weatherstrip shield and transmitted to the uncomfortable sound. Can be accurately absorbed and suppressed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a vehicle body side facing a door portion to which a rubber weather strip shield embodying the present invention is attached.

FIG. 2 is a schematic configuration diagram of a vehicle body side facing a door portion to which a rubber weather strip shield embodying the present invention is attached.

FIG. 3 is a partial cross-sectional view of a rubber weatherstrip shield embodying the present invention.

[Explanation of symbols]

11 Car body side (steel plate on the car body side) 12 Door side (sash or steel plate) 13 Weatherstrip Shield 14 Sound absorbing material 15 Pores penetrating to sound absorbing material 16 Rubber strip on the outside of the weatherstrip shield

Claims (5)

[Claims] 1. A rubber weather strip shield provided on a vehicle body side or a door side for filling and shielding a gap between a vehicle body and a door, the inside of the rubber weather strip shield having a hollow inside. A series of features characterized in that a sound absorbing material having a sound absorbing effect is provided in the hollow portion to suppress the generation of noise due to wind noise when the vehicle is traveling or to suppress the sound generated when the door is closed. Automotive weatherstrip shield mechanism. 2. A foam material represented by urethane or polyethylene and melanin is used as a sound absorbing material having a sound absorbing effect in the inner hollow portion of the rubber weather strip shield having a hollow inside. The weather strip shield mechanism for an automobile according to 1. 3. A rubber-based weatherstrip shield having a hollow inside uses a fiber-based sound absorbing material typified by a felt material or PET fiber material as a sound absorbing material having a sound absorbing effect in the inner hollow portion of the rubber weather strip shield. The weather strip shield mechanism for an automobile according to claim 1. 4. A resin foam filling material represented by an epoxy resin is used as a sound absorbing material having a sound absorbing effect in the inner hollow portion of the rubber weather strip shield having a hollow inside. The weather strip shield mechanism for an automobile according to 1. 5. The weather according to claim 1, wherein the rubber weatherstrip shield itself having a sound absorbing material having a sound absorbing effect inside thereof is provided with a large number of pores penetrating to the inner sound absorbing material. Strip shield mechanism.