JPH0685153U - Weather strip for car door - Google Patents

Abstract

(57) [Summary] [Purpose] First, it can easily cope with differences in various conditions such as the distance between the door and the opening on the body side around the door, shape, unevenness, and construction, and second, the seal. The position can be set freely, and sealing can be performed with the vertical and vertical sealing pressures. Thirdly, a large sealing pressure can be obtained.
Thirdly, we propose a weatherstrip for an automobile door that can reliably prevent air, wind, water, dust, etc. from entering the room. [Structure] The weather strip 5 is interposed between the door 2 and an opening 4 on the body 3 side around the door 2.
Then, the weather strip 5 has a bag structure into which air can be press-fitted. First, when the air is removed, the weather strip 5 is shrunk to a retracted state where it does not interfere with the opening and closing of the door 2, and the air is removed. When press-fitted, it expands and can be displaced between the closed door 2 and the opening 4 into a sealed state in which a predetermined sealing pressure is mainly sealed in the vertical and vertical directions. There is.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a weather strip for automobile doors. That is, the present invention relates to a weather strip that is sandwiched and interposed between a door and a body-side opening around the door in an automobile.

[0002]

[Prior art]

 FIG. 3 is a front cross-sectional explanatory view for explaining a weather strip of this type of conventional example. As shown in the same figure, the weather strip 1 is attached to, for example, an opening 4 on the body 3 side around the door 2 where the door 2 is opened and closed, and is interposed between the weather strip 1 and the closed door 2. It is used to seal the spaces and prevent air, wind, water, dust, etc. from entering the room from the outside. Conventionally, the weather strip 1 has generally been a drawn product, and a sealing pressure is obtained by the closing force of the door 2 to seal the door 2 and the opening 4 in the opening / closing direction of the door 2, that is, in the lateral direction. It was sealed by pressure, and it was interposed so as to establish an airtight seal between them.

[0003]

[Problems to be solved by the device]

 By the way, in such a conventional example, the following problems have been pointed out. First of all, although the conditions such as the distance, shape, unevenness, and construction between the door 2 and the opening 4 are not constant and are different from each other, the weather strip 1 interposed between them is different. Is a product with a fixed shape and the same cross-section by drawing. Due to such circumstances, conventionally, it has been very difficult to set the seal pressure and design the shape of the weather strip 1, and the seal pressure is not uniform at each place and the variations are conspicuous, and the weather strip 1 fits perfectly between both parties. It was difficult to do so, and there was concern about the sealing, airtightness, and sealing between the two. As a result, the invasion of air, wind, water, dust, etc. from the outside could not be blocked, and it was pointed out that these leaks and invasions.

Secondly, the door 2 is set to have an outer peripheral shape that is one size smaller than the opening 4 in order to ensure the opening / closing property, and accordingly, the installation position of the weather strip 1 is set to the opening / closing position of the door 2. The seal position and the seal line were formed on the outer peripheral edge of the door 2 in the opening / closing direction and in the lateral direction. As described above, conventionally, the position where the weather strip 1 is installed is limited, and this also causes the above-mentioned defects in sealing, airtightness, sealing, etc., which causes invasion of air, wind, water, dust, etc. .

Thirdly, the weather strip 1 obtains the sealing pressure by the closing force of the door 2 as described above, and the sealing pressure in the opening / closing direction / lateral direction of the door 2 causes the gap between the door 2 and the opening 4. It was sealed. However, since the sealing pressure of the weather strip 1 is determined by the closing force and the closing method of the door 2, it is difficult to obtain a large sealing pressure, and the sealing pressure between the door 2 and the opening 4 is inevitably insufficient. However, such a lack of sealing pressure also causes the above-mentioned defects in sealing, airtightness, sealing, etc., and has caused the ingress of air, wind, water, dust, and the like.

In view of such circumstances, the present invention has been made to solve the problems of the above-mentioned conventional example, and adopts a bag structure capable of injecting air, and provides a predetermined retracted state and a sealed state. First, it is possible to easily respond to the differences in conditions such as the distance between the door and the opening, the shape, the unevenness, the construction, etc., and the second is that the seal position can be set freely. It is an object of the present invention to propose a weather strip for an automobile door, which can be sealed by vertical and vertical sealing pressures and thirdly can obtain a large sealing pressure.

[0007]

[Means for Solving the Problems]

 The technical means of the present invention for achieving this object are as follows. That is, the weather strip for the door of this automobile is interposed between the door and the body-side opening around the door. Then, it has a bag structure capable of injecting air. First, when the air is released, it shrinks and becomes a retracted state that is folded to the extent that it does not interfere with the opening and closing of the door, and when air is pressed in. Then, it is inflated to be in a sealed state in which the space between the closed door and the opening is sealed mainly in the longitudinal direction at a predetermined sealing pressure.

[0008]

[Action]

 Since the present invention comprises such means, it operates as follows. When the door is opened or closed, the weather strip is evacuated and retracted to the extent that it does not interfere with the opening and closing of the door. It is inserted between the openings and sealed between them with a predetermined sealing pressure.

Therefore, firstly, although various conditions such as a space, a shape, unevenness, and construction are different between the door and the opening, this weather strip can obtain a sealing pressure by air pressure. Therefore, the sealing pressure is uniform at each location without any variation, and the door and opening are completely fitted to each other, and the both are hermetically sealed.

Secondly, in this weather strip, since the sealing pressure can be obtained by the air pressure, there is no limitation on the insertion position, and the sealing position and the sealing line can be freely set, so that mainly in the vertical and vertical directions. The sealing pressure can seal between the door and the opening. From this aspect, the two can be perfectly fitted to each other to form an airtight seal. Thirdly, since the sealing pressure can be obtained by the air pressure, a large predetermined sealing pressure can be obtained, and from this aspect, the airtight sealing state can be established between the door and the opening.

[0011]

【Example】

 The present invention will be described in detail below based on the embodiments shown in the drawings. 1 and 2 show an embodiment of the present invention, FIG. 1 (1) is an overall side view, and FIG. 1 (2) is an example of a control circuit diagram. 2 (1) is a front cross-sectional explanatory view of the main part in the retracted state, and FIG. 2 (2) is a front cross-sectional explanatory view of the main part in the sealed state.

In automobiles such as passenger cars and trucks, a weather strip 5 is interposed between the door 2 and an opening 4 on the body 3 side around the door 2. In the illustrated example, the opening 4 is provided. A weather strip 5 is attached to the side. The weather strip 5 is made of, for example, rubber and has a bag structure capable of injecting air. As shown in FIG. 1 (1), the weather strip 5 is endless and is provided along the opening edge of the opening 4. There is. Then, as shown in FIG. 2 (1), the weather strip 5 first shrinks when the air is pulled out, and does not interfere with the opening and closing of the door 2 by the opening 4 side. It will be in the retracted state when folded. On the other hand, as shown in FIG. 2 (2), when air is press-fitted, it expands and expands from the opening 4 side to the door 2 side, and between the closed door 2 and the opening 4. The gap is sealed mainly in the vertical direction with a predetermined sealing pressure. In the figure, 6 indicates a cab formed by the body 3, and 7 indicates an inside of the cab 6. The weather strip 5 may not be attached to the opening 4 side as described above, but may be attached to the peripheral edge of the facing door 2 side.

Next, an example of such control of the weather strip 5 will be described in detail with reference to FIG. The weather strip 5 can be displaced between the retracted state and the sealed state as described above, and its control is performed as follows, for example. First, the configuration will be described. Reference numeral 8 is a vehicle-mounted compressor, and high-pressure air is stored in the air tank 9 by the compressor 8. The air pipe 10 is provided between the air tank 9 and the weather strip 5. , Are connected via a solenoid valve 11 for press-fitting, an air tank 12 for reserve, an air hose 13, and the like. A pressure switch 14 is attached to the reserve air tank 12, and a branch pipe 15 whose one end is open is connected to the reserve air tank 12. The branch pipe 15 is provided with a relief solenoid valve 16. Reference numeral 17 denotes a door switch. The door switch 17 is provided on the opening 4 side so as to face the door 2, and detects opening / closing of the door 2. Reference numeral 18 denotes a contact switch. The contact switch 18 is provided in the vicinity of a remote control type handle 19 for locking and unlocking the door 2, and detects an unlocking operation of the handle 19 or an opening operation. 20 is a position switch for switching the electric circuit.

With such a configuration, the weather strip 5 is controlled as follows. First, when the open door 2 is closed, the following occurs. That is, when the door switch 17 detects that the door 2 is closed, the normally-closed solenoid valve 11 for press-fitting is switched to open, so that high-pressure air from the air tank 9 is supplied to the air pipe 10 and the open electromagnetic. It is supplied and pressed into the weather strip 5 through a valve 11, a reserve air tank 12, an air hose 13, and the like. Then, the weather strip 5 expands from the retracted state shown in FIG. 2 (1) to seal the space between the door 2 and the opening 4 at a predetermined sealing pressure, as shown in FIG. 2 (2). It will be in a sealed state. Then, when the pressure switch 14 detects a predetermined seal pressure / air pressure, the position switch 20 switches from the side of the press-fitting solenoid valve 11 to the side of the relief solenoid valve 16 in a conductive manner based on the detection signal. At the same time, the solenoid valve 11 for press-fitting is switched to the closed state, and the air supply from the air tank 9 via the air pipe 10 and the like is cut off.

On the other hand, when the door 2 is thus closed and the weather strip 5 is held in the sealed state shown in FIG. 2 (2), the handle 19 is opened to open the door 2. Then, it becomes as follows. That is, the contact switch 18 detects this and the normally closed relief solenoid valve 16 is immediately switched to open, so that the air press-fitted into the weather strip 5 is replaced by the air hose 13 and the reserve air tank. It is released into the atmosphere through 12, the branch pipe 15, the open solenoid valve 16 and the like. In this way, the weather strip 5 is immediately folded to such an extent that it does not hinder the opening and closing of the door 2 and enters the retracted state shown in FIG. 2 (1), and when the pressure switch 14 detects zero air pressure, Based on the detection signal, the position switch 20 switches from the solenoid valve 16 side to the solenoid valve 11 side so as to be able to conduct, and the solenoid valve 16 switches from open to closed. Then, the door 2 is opened, the door switch 17 detects the opening of the door 2, and the electric circuit is cut off. The weather strip 5 is controlled in this way, for example.

The present invention is configured as described above. Then it becomes as follows. The weather strip 5 for a vehicle door has a bag structure capable of injecting air. Then, when the door 2 is opened and closed, air is evacuated and contracted (see FIG. 2A), and the door 2 is folded to such an extent that it does not interfere with the opening and closing of the door 2. On the other hand, when the door 2 is closed, the weather strip 5 is in a sealed state in which air is pressed into the air tank 9 and expanded (see (2) in FIG. 2), and the closed door 2 and the door 2 are closed. It is sandwiched between the surrounding body 3 and the opening 4 on the side of the body 3 to close and seal them with a predetermined sealing pressure. Then, the following 1st, 2nd and 3rd are obtained.

First, the door 2 and the opening 4 on the body 3 side around the door 2 are different in various conditions such as a space, a shape, unevenness, and construction. This weather strip 5 is in a sealed state in which it is expanded by air pressure to obtain the sealing pressure (see (2) of FIG. 2), and has the same shape and shape as the conventional example of this kind described above. It is not a cross-sectional shape product (see Fig. 3). Therefore, in this weather strip 5, even if the conditions are variously different as described above, the sealing pressure is uniform in each place without variation, and it is possible to easily cope with this, so that the complete seal between the door 2 and the opening 4 can be obtained. It is possible to achieve a hermetically sealed state by securely fitting between the two.

Secondly, the weather strip 5 obtains the sealing pressure by the air pressure, and does not obtain the sealing pressure by the closing force of the door 2 unlike the above-mentioned conventional example of this kind. Therefore, in this weather strip 5, the interposition position and the sealing position / sealing line are not limited, and can be set freely as desired. Mainly in the vertical / longitudinal sealing position / sealing line and sealing pressure, The openings 4 can be hermetically sealed (see FIG. 2 (2)), and also from this surface, the two can be perfectly fitted, and the two can be reliably hermetically sealed to provide an airtight sealed state.

Thirdly, the weather strip 5 obtains the sealing pressure by the air pressure, and does not obtain the sealing pressure by the closing force of the door 2 unlike the above-mentioned conventional example of this kind. A large predetermined sealing pressure can be obtained. Therefore, there is no lack of sealing pressure, and even from this surface, the space between the door 2 and the opening 4 can be surely sealed and an airtight sealing state can be obtained.

[0020]

[Effect of device]

 As described above, the weather strip for an automobile door according to the present invention adopts a bag structure capable of injecting air, and is displaceable between a predetermined retracted state and a sealed state. Demonstrate.

[0021] Firstly, various conditions such as a space, a shape, unevenness, and construction are different between the door and the body-side opening around the door. Even under the conditions, the sealing pressure is uniform and a perfect fit can be achieved between the two. As a result, the two are sealed to maintain an airtight seal, and air, wind, water, dust, etc. can be reliably prevented from entering the room from the outside. Secondly, this weather strip is not limited in the position of insertion, and can be set freely as needed, and it is possible to seal between the two mainly by the vertical and vertical sealing pressures. , It is possible to reliably prevent the entry of dust and the like. Thirdly, in particular, this weather strip can obtain a large sealing pressure and there is no lack of sealing pressure, and air, wind, water, dust, etc. can be surely prevented from entering from that aspect as well. Thus, the effects of the present invention are remarkably great, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

1 shows an embodiment of a weather strip for an automobile door according to the present invention, FIG. 1 (1) is an overall side view, and FIG. 2 (2) is one example of a control circuit diagram.

2A and 2B are front cross-sectional explanatory views of a main part for explaining the operation of the embodiment, FIG. 1A shows a retracted state, and FIG. 2B shows a sealed state.

FIG. 3 is a front cross-sectional explanatory view for explaining this type of conventional example.

[Explanation of symbols] 1 weather strip (conventional example) 2 door 3 body 4 opening 5 weather strip (of this invention) 6 cab 7 indoor 8 compressor 9 air tank 10 air piping 11 solenoid valve 12 air tank 13 air Hose 14 Pressure switch 15 Branch pipe 16 Solenoid valve 17 Door switch 18 Contact switch 19 Handle 20 Position switch

Claims (1)

[Scope of utility model registration request] 1. A weather strip that is interposed between a door and an opening on the body side around the door, and has a bag structure capable of injecting air. First, when the air is deflated, it contracts. Then, the door is retracted to such an extent that it does not interfere with the opening and closing of the door, and when air is pressed in, it expands and extends mainly in the vertical direction between the closed door and the opening. A weather strip for an automobile door, which is in a sealed state of being sealed at a predetermined sealing pressure.