JP2600752Y2 - Weatherstrips for car doors - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for an automobile door. That is, the present invention relates to a weatherstrip that is interposed and interposed between a door and a body-side opening around the door in an automobile.

[0002]

2. Description of the Related Art FIG. 3 is a front sectional view for explaining a conventional weather strip of this kind. As shown in FIG. 1, the weather strip 1 is attached, for example, to an opening 4 on the body 3 side around the door 2 where the door 2 is opened and closed. Is used to prevent air, wind, water, dust and the like from entering the room from outside. Conventionally, the weather strip 1 is generally made of a drawn product. The sealing pressure is obtained by the closing force of the door 2, and the sealing pressure in the opening and closing direction of the door 2, that is, in the lateral direction is obtained between the door 2 and the opening 4. In order to make the airtight seal between them.

[0003]

However, the following problems have been pointed out in such a conventional example. First, the conditions such as the distance between the door 2 and the opening 4, the shape, the unevenness, the installation, etc. are not constant and variously different, whereas the weather strip 1 interposed therebetween is different. It was made of a product with a fixed shape and the same cross-sectional shape by drawing. Under these circumstances, conventionally, it is very difficult to set the sealing pressure and design the shape of the weather strip 1, the sealing pressure is not uniform at each location, and the sealing pressure is not uniform, and the weather strip 1 fits perfectly between the two. It was difficult to seal, airtight and seal between them. As a result, intrusion of air, wind, water, dust and the like from the outside cannot be blocked, and leakage and intrusion of these have been pointed out.

[0004] Second, the door 2 is set to have an outer peripheral shape one size smaller than the opening 4 in order to secure opening / closing properties. In accordance with this, the interposition position of the weather strip 1 hinders opening / closing of the door 2. In the end, the seal position / seal line is formed on the outer peripheral edge of the door 2 on the opening / closing side / lateral direction. As described above, conventionally, the interposition position of the weather strip 1 is limited, and this point also causes the above-described defective sealing, airtightness, sealing, and the like.
Invasion of wind, water, garbage, etc. was caused.

[0005] Third, the weather strip 1 is
Has obtained the sealing pressure by the closing force of the door 2, and sealed between the door 2 and the opening 4 by the sealing pressure in the opening / closing direction and the lateral direction of the door 2. However, the closing force of door 2
Since the sealing pressure of the weather strip 1 is determined by the closing method, it is difficult to obtain a large sealing pressure, and the sealing pressure between the door 2 and the opening 4 is inevitably insufficient. This causes defective sealing, airtightness, sealing, etc., resulting in intrusion of air, wind, water, dust and the like.

The present invention has been made in view of the above circumstances, and has been made to solve the above-mentioned problems of the prior art, and employs a bag structure capable of injecting air and can be displaced between a retracted state and a sealed state. At the same time, such displacement is controlled by a predetermined air pipe, a solenoid valve for press-fitting, an air tank for reserve, a pressure switch, a solenoid valve for release, a door switch, a position switch, a contact switch, and the like. In the first place, it is possible to easily cope with differences in various conditions such as the distance between the door and the opening, the shape, the unevenness, and the construction, and secondly, the seal position can be freely set. Thirdly, weathers for automobile doors can be sealed with vertical and vertical sealing pressures, and thirdly, a large sealing pressure can be obtained, and these can be realized by predetermined control. An object of the present invention is to propose a lip.

[0007]

The technical means of the present invention for achieving this object is as follows. That is, the weather strip for the door of the automobile is interposed between the door and the opening on the body side around the door. And
It has a bag structure that can inject air, and when it is first evacuated, it contracts and retracts to the extent that it does not hinder the opening and closing of the door, and when air is pressed in, it expands. As a result, a sealed state is established in which the space between the closed door and the opening is mainly sealed in the vertical direction with a predetermined sealing pressure.

The displacement between the retracted state and the sealed state of the weather strip is performed by the following control method. That is, between the air tank where high-pressure air is stored and the connection port of the weather strip,
It is connected via an air pipe, a solenoid valve for press fitting, an air tank for reserve, and the like. A pressure switch is attached to the reserve air tank, and a branch pipe having one end opened and provided with a relief solenoid valve is connected to the reserve air tank. After passing through the door switch, the control electric circuit is connected in parallel to the press-fit solenoid valve side and the release solenoid valve side via the contact switch in the electric circuit switching position switch. Forked.

The door switch is provided at the opening on the body side so as to face the door. The door switch detects opening and closing of the door, continues the electric circuit when the door is closed, and opens the door when the door is opened. Cut off the electric circuit. The position switch is
When the pressure switch detects zero air pressure, the solenoid valve for release is switched to the solenoid valve for press-fitting so as to be conductive, and when the pressure switch detects a predetermined seal pressure / air pressure, press-fitting is performed. From the side of the solenoid valve for release to the side of the solenoid valve for release. The contact switch is provided near a remote control type handle that locks and unlocks the door. When the unlocking operation of the handle, that is, the opening operation is detected, the contact switch can be switched to open the release solenoid valve. It has become.

[0010]

The present invention is constituted by such means, and operates as follows. This weatherstrip has a bag structure and is retracted so that the air is evacuated when the door is opened and closed. And an opening on the body side to seal the space with a predetermined sealing pressure. The displacement between the retracted state and the sealed state of the weather strip is controlled and implemented as follows.

First, when the opened door is closed, the following occurs. That is, the door switch detects the door closing and the electric circuit for control is continued, and the position switch for electric circuit switching previously switches the electromagnetic valve side for press-fitting to be conductive. , The solenoid valve for press fitting is switched to open. Therefore, high-pressure air is supplied from the air tank to an air pipe, an open solenoid valve for press-fitting,
It is supplied and pressed into the weather strip via a reserve air tank and the like. Then, the weather strip expands from the retracted state, and seals the space between the door and the opening with a predetermined sealing pressure to be in a sealed state. When the pressure switch reaches a predetermined seal pressure and air pressure, the position switch switches the solenoid valve for press-fitting to the solenoid valve for relieving from the solenoid valve for press-fitting based on the detection signal. Is switched to the closed state, and the supply of air from the air tank via the air pipe or the like is shut off.

On the other hand, when the door is closed and the weatherstrip is held in a sealed state, the door lock handle is firstly unlocked and opened in order to open the door. , As follows: That is, the contact switch detects this, and the normally closed relief solenoid valve is immediately switched to open, so that the air that has been press-fitted into the weather strip,
The air is released to the atmosphere via an air hose, an air tank for reserve, a branch pipe, a solenoid valve for opening relief, and the like. In this way, the weather strip is immediately folded to the extent that it does not hinder the opening and closing of the door, and is in the retracted state. When the pressure switch detects zero air pressure, the position switch switches the release solenoid valve from the release solenoid valve to the conductive solenoid valve based on the detection signal so that the release solenoid valve is open. Switch to closed.
Then, the door is opened, and the door switch detects the door opening, thereby interrupting the control electric circuit. The weatherstrip is controlled in this way.

According to the weather strip for an automobile door, the following first, second, third and fourth conditions are obtained. First, there are various differences between the door and the opening on the body side, such as the spacing, shape, unevenness, and construction. However, since the sealing pressure can be obtained by the air pressure of this weather strip, The sealing pressure is uniform at each location without any variation, and is completely fitted between the door and the opening, so that an airtight seal is established between the two. Secondly, in this weather strip, the sealing pressure is obtained by air pressure, so that the interposition position is not limited and the sealing position and the sealing line can be freely set, so that mainly the sealing pressure in the vertical direction and the vertical direction is reduced. Thus, the space between the door and the opening can be sealed. From this surface, the two can be completely fitted to each other, and the space between them can be hermetically sealed. Third, since the sealing pressure is obtained by the air pressure, a large predetermined sealing pressure can be obtained, and the airtight sealing between the door and the opening can be obtained from this surface. Fourth, these are realized by displacing the weather strip between a retracted state and a sealed state by a predetermined control.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to 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. FIG. 2 (1) is a front sectional explanatory view of a main part in a retracted state, and FIG. 2 (2) is a front sectional explanatory view of a main part in a sealed state.

In a car such as a passenger car or a truck, a weather strip 5 is interposed between the door 2 and an opening 4 around the door 2 on the body 3 side. , A weatherstrip 5 is attached. The weather strip 5 is made of, for example, rubber and has a bag structure into which air can be injected. As shown in FIG. 1A, the weather strip 5 has an endless shape and is provided along the opening edge of the opening 4. ing. Then, as shown in FIG. 2A, when the air is evacuated, the weather strip 5 contracts and folds toward the opening 4 until the weather strip 5 does not hinder the opening and closing of the door 2. Evacuation state. On the other hand, as shown in FIG. 2B, when air is press-fitted, the air expands and expands from the opening 4 side to the door 2 side, and the closed door 2 and the opening 4 The gap therebetween is in a sealed state in which the gap is mainly sealed in the vertical direction with a predetermined sealing pressure. In the drawing, reference numeral 6 denotes a cab formed by the body 3, and reference numeral 7 denotes a room inside the cab 6. The weather strip 5 may be attached to the peripheral edge of the door 2 instead of being attached to the opening 4 in this way.

Next, the control method 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 the control method is as follows. First, in FIG. 1A, reference numeral 8 denotes a compressor mounted on a vehicle, and high-pressure air is stored in an air tank 9 by the compressor 8. They are connected via an air pipe 10, 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 provided in the reserve air tank 12.
Is connected, and a branch pipe 15 having one end opened is connected thereto. 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 side of the opening 4 so as to face the door 2 and detects opening and closing of the door 2. Reference numeral 18 denotes a contact switch. The contact switch 18 is provided near a remote control type handle 19 for locking and unlocking the door 2 and detects an unlocking operation of the handle 19, that is, an opening operation.

As shown in FIG. 1 (2), the electric circuit for control passes through the door switch 17 and then the position switch 20 for electric circuit switching is connected to the side of the solenoid valve 11 for press-fitting. , And is branched in parallel to the relief solenoid valve 16 via the contact switch 18.
The door switch 17 detects opening and closing of the door 2, continues the electric circuit when the door 2 is closed, and shuts off the electric circuit when the door 2 is opened. When the pressure switch 14 detects zero air pressure, the position switch 20 switches from the release solenoid valve 16 side to the press-fit solenoid valve 11 side so that conduction can be conducted. When the air pressure is detected, the side of the solenoid valve 16 for relief is switched from the side of the solenoid valve 11 for press fitting to the side for conduction. Contact switch 18
Is detected when an unlocking operation, that is, an opening operation of the handle 19 is detected, so that the release solenoid valve 16 can be switched to open. The control method of the weather strip 5 is as described above.

The present invention is configured as described above.
Then, it becomes as follows. The weather strip 5 for an automobile door has a bag structure into which air can be injected. Then, at the time of opening / closing operation of the door 2, the air is evacuated to be in a retracted retracted state (see FIG. 2A), and the door 2 is folded to the extent that it does not hinder opening / closing of the door 2. On the other hand, when the door 2 is closed, the weather strip 5 is in a sealed state where the air is press-fitted from the air tank 9 and expanded (see FIG. 2 (2)), and the closed door 2 and the area around the door 2 are closed. Between the opening 4 on the body 3 side,
They are sandwiched and interposed, and they are closed and sealed with a predetermined sealing pressure.

Then, such a weather strip 5
The displacement between the retracted state and the sealed state is controlled as follows.
Will be implemented. First, when the opened door 2 is closed, the following occurs. That is, the door switch 17 detects that the door 2 is closed, the electric circuit for control is continued, and the position switch 20 for electric circuit switching switches the solenoid valve 11 for press-fitting in advance to be conductive. Therefore, the solenoid valve 11 for press-fitting is switched to open based on these. Then, high-pressure air is supplied and pressed into the weather strip 5 from the air tank 9 via an air pipe 10, an open solenoid valve 11, an air tank 12 for reserve, an air hose 13 and the like. Then, the weather strip 5 expands from the retracted state shown in FIG. 2A, and seals the space between the door 2 and the opening 4 with a predetermined sealing pressure, as shown in FIG. 2B. It becomes a seal state. Then, when the pressure switch 14 detects a predetermined seal pressure and air pressure, the position switch 20 switches from the press-fit solenoid valve 11 side to the release solenoid valve 16 side to be conductive based on the detection signal. Instead, the press-fit solenoid valve 11 is switched to the closed state, and the supply of air from the air tank 9 via the air pipe 10 or the like is cut off.

On the other hand, when the door 2 is closed as described above and the weather strip 5 is held in the sealed state shown in FIG.
Prior to this, first, when the handle 19 for locking the door 2 is unlocked / opened, the following operation is performed. 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 that has been press-fitted into the weather strip 5 is removed from the air hose 13 and the reserve air tank. 12. Branch pipe 1
5, is released into the atmosphere via an opening relief solenoid valve 16 and the like. In this way, the weather strip 5 is immediately folded to the extent that it does not hinder the opening and closing of the door 2. Then, the retracted state shown in FIG.
When the pressure switch 14 detects zero air pressure, the position switch 20 switches the release solenoid valve 16 side to the press-fit solenoid valve 11 side based on the detection signal so as to be conductive, and then releases the release solenoid valve 16. Switches from open to closed. Then, the door 2 is opened, and the door switch 17 detects that the door 2 has been opened, so that the control electric circuit is shut off. The weather strip 5 is controlled in this manner.

According to the weather strip for the automobile door 2, the following first, second, third and fourth conditions are obtained. First, the door 2 and the opening 4 on the body 3 side around the door 2 are variously different in terms of spacing, shape, unevenness, installation, and the like. The weather strip 5 is in a sealed state expanded by air pressure, and a sealing pressure is obtained (see FIG. 2 (2)). As shown in FIG. Not (see FIG. 3). Thus, even if the weather strip 5 has various conditions as described above, the sealing pressure is uniform without any variation at each location, and can easily cope with the sealing pressure. And tightly sealed between the two to make an airtight seal state.

Second, the sealing pressure of the weather strip 5 is obtained by air pressure, and the sealing pressure is not obtained by the closing force of the door 2 as in the above-described conventional example. Therefore, in the weather strip 5, the interposition position, the seal position, and the seal line are not limited and can be freely set as appropriate, and the door 2 mainly depends on the vertical and vertical seal positions, the seal line, and the seal pressure.
2 and the opening 4 can be sealed (see FIG. 2 (2)). From this surface as well, the two can be completely fitted to each other, and the two can be securely sealed to form an airtight seal.

Third, the sealing pressure of the weather strip 5 is obtained by the air pressure, and the sealing pressure is not obtained by the closing force of the door 2 as in the above-mentioned conventional example. A large predetermined sealing pressure can be obtained. So there is no shortage of sealing pressure, and from this aspect,
The space between the door 2 and the opening 4 is reliably sealed, and an airtight seal state can be obtained.

Fourth, these are realized by displacing the weather strip 5 having a bag structure between a retracted state and a sealed state by predetermined control.

[0025]

As described above, the weather strip for an automobile door according to the present invention employs a bag structure capable of injecting air, and can be displaced between a retracted state and a sealed state. The displacement is controlled and realized by a predetermined air pipe, press-fit solenoid valve, reserve air tank, pressure switch, release solenoid valve, door switch, position switch, contact switch, etc. Has the following effects.

First, various conditions such as a gap, a shape, unevenness, and construction are different between the door and the opening on the body side around the door. Even at the bottom, the sealing pressure is uniform, and the two can be perfectly fitted. Accordingly, the space between the two can be sealed and maintained in an air-tight state, so that invasion of air, wind, water, dust and the like from the outside to the room can be surely prevented. Secondly, the weatherstrip can be freely set without limitation on the interposition position, and can be sealed between the two mainly by the vertical and vertical sealing pressures. , Dust and the like can be reliably prevented from entering. Third, this weatherstrip
A large sealing pressure can be obtained, and there is no shortage of the sealing pressure. From this aspect, the invasion of air, wind, water, dust and the like can be reliably prevented. Fourth, these are realized by displacing the weather strip having a bag structure between a retracted state and a sealed state by predetermined control. As described above, the effects exhibited by the present invention are remarkable and large, for example, the problems existing in this type of conventional example are eliminated.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a weather strip for an automobile door according to the present invention. FIG. 1 is an explanatory side view of the whole, and FIG. 1 is an example of a control circuit diagram.

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

FIG. 3 is an explanatory front view for explaining a conventional example of this kind.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weather strip (conventional example) 2 Door 3 Body 4 Opening 5 Weather strip (of the present invention) 6 Cab 7 Room 8 Compressor 9 Air tank 10 Air piping 11 Solenoid valve for press fitting 12 Air tank 13 Air hose 14 Pressure switch 15 Branch pipe 16 Solenoid valve for release 17 Door switch 18 Contact switch 19 Handle 20 Position switch

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60R 13/06 B60J 10/08 B60J 5/00 501

Claims (1)

(57) [Scope of request for utility model registration] 1. A weather strip (5) interposed between a door (2) and an opening (4) on the body (3) side around the door (2), wherein the weather strip (5) has a bag structure capable of injecting air, and air is first removed. In this case, the door 2 is retracted to a retracted state that does not obstruct the opening and closing of the door 2, and when air is press-fitted, it expands to close the door 2 and the opening 4. Between the retracted state and the sealed state of the weatherstrip 5 in such a manner that the gap between the sealing state and the retracted state of the weatherstrip 5 is mainly stored in an air tank in which high-pressure air is stored. 9 and a connection port of the weather strip 5 are connected via an air pipe 10, a solenoid valve 11 for press-fitting, an air tank 12 for reserve, and the like.
2, a branch pipe 15 provided with a pressure switch 14 and one end opened and provided with a solenoid valve 16 for release.
After passing through the door switch 17, the control electric circuit is connected to the solenoid valve 11 for press-fitting in the position switch 20 for switching the electric circuit, and is released through the contact switch 18 for contact. The door switch 17 is provided at the opening 4 side of the body 3 so as to face the door 2, and detects opening and closing of the door 2. When the door 2 is closed, the electric circuit is continued, and when the door 2 is opened, the electric circuit is interrupted. When the pressure switch 14 detects zero air pressure, the position switch 20 opens the solenoid valve 16 for release. When the pressure switch 14 detects a predetermined sealing pressure / air pressure from the side of the solenoid valve 11 for press-fitting, the solenoid valve 16 for relieving from the side of the solenoid valve 16 for press-fitting is switched. Can conduct on the side The contact switch 18 is provided in the vicinity of a remote control type handle 19 for locking and unlocking the door 2, and when the unlocking operation of the handle 19, that is, the opening operation is detected, the contact switch 18 continues to be released. Solenoid valve 16
A weatherstrip for an automobile door, wherein the weatherstrip can be switched to open.