KR100746046B1 - The weather strip for automobile - Google Patents

Abstract

The present invention relates to a vehicle weather strip, and more particularly, it is installed in a part requiring a sealing, such as a door, engine room, trunk room, inspection cover, or sun roof, etc. of the vehicle, and weather on each body panel or body panel. In a vehicle weather strip in close contact with a strip to give a sealing effect, the hollow strip of the weather strip or the inside and outside of the body surrounding the hollow portion is formed, the power is supplied or cut off according to a given condition the body panel or the In accordance with the weather strip on the body panel or the weather strip for a vehicle, characterized in that it comprises a close contact member which is adjusted to the degree of the adhesion force in accordance with the change in the running speed of the vehicle or the pressure difference between the inside and outside of the vehicle will be.

The vehicle weather strip of the present invention configured as described above includes the contact member or the towing member having a coercive force or a traction force according to the driving state of the vehicle, and thus the door of the vehicle due to the pressure difference between the inside and the outside of the vehicle due to the high speed driving of the vehicle. By preventing the occurrence of gaps in areas requiring sealing such as engine rooms, trunk rooms, inspection covers, or sun roofs, it blocks noise caused by the inflow and outflow of air through the gaps and various noises transmitted through the air, and prevents dust and rainwater. It prevents the inflow of foreign substances such as the like and at the same time provides the effect of improving the heating and cooling performance of the vehicle by increasing the sealing effect.

Weather strip, permanent magnet, electromagnet, magnetic body, magnetic body encapsulation tube, rheological fluid tube.

Description

Weather strip for vehicles {THE WEATHER STRIP FOR AUTOMOBILE}

1 is a side view schematically showing a side state of a typical vehicle,

2 is a cross-sectional view of a conventional vehicle weather strip as seen from A-A of FIG.

3A and 3B are cross-sectional views of the present weather strip for a vehicle showing a case where the contact member according to the present invention is made of an electromagnet,

4a to 4c is a cross-sectional view of the present weather strip for a vehicle showing a case in which the contact member according to the present invention is made of a magnetic material,

5 is a cross-sectional view of the present weather strip for a vehicle showing a case where the contact member according to the present invention is made of a mixture of magnetic powder and rubber.

6A to 6C are cross-sectional views of the present invention weather strip showing a case where the contact member according to the present invention is made of a magnetic body sealing tube and a rheological fluid tube.

7A to 7C are cross-sectional views of the present invention weather strip showing a state in which a small fin or a separating partition is formed in the magnetic encapsulation tube and the rheological fluid tube as an example of the precipitation preventing means according to the present invention.

8A to 8C are cross-sectional views of the present weather strip for a vehicle in which a plurality of contact members or traction members according to the present invention are installed in parallel.

<Description of the symbols for the main parts of the drawings>

10; Body panel, 30; door,

100; Weatherstrip, 110; Hollow Part,

130; Body, 150; Lip,

170; Support, 200; Contact Member,

201,301; Electromagnet, 203; Magnetic Field,

205; Magnetic body encapsulation tube, 207; Rheological fluid tubes,

209; MR fluid, 217; ER fluid,

213; Small size 휀, 215; Bulkhead,

211; Mixed extrudates, 300; Traction member,

303; Coil, 305; Combination,

307; Permanent magnet.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for a vehicle, comprising a contact member or the towing member having a coercive force or a traction force in accordance with a driving state of a vehicle, thereby providing a door of the vehicle due to a pressure difference between the inside and the outside of the vehicle due to the high speed driving of the vehicle. By preventing the occurrence of gaps in areas requiring sealing such as engine rooms, trunk rooms, inspection covers, or sun roofs, it blocks noise caused by the inflow and outflow of air through the gaps and various noises transmitted through the air, and prevents dust and rainwater. The present invention relates to a vehicle weather strip for preventing the inflow of foreign substances such as the like and improving the cooling and heating performance of the vehicle by increasing the sealing effect.

In general, vehicle weatherstrips require sealing, such as doors, engine rooms, trunk rooms, inspection covers or sun roofs, sliding windows such as RV vehicles or buses, or general windows. Applied to the part.

That is, the vehicle weather strip not only absorbs the shock due to the opening and closing, but also prevents the inflow and outflow of the air where the sealing is required, and removes the gap with the body panel of the vehicle to transmit the noise or the air due to the inflow and outflow of the air. It has the effect of blocking various noises, and blocks foreign substances such as dust and rainwater and performs an effect of improving the heating and cooling performance of the vehicle.

Such a vehicle weather strip is usually made of a rubber (rubber) material, but the structure thereof is slightly different depending on the parts required for sealing, and as a representative example, the weather strip of the door will be described.

That is, as shown in FIG. 2, a hollow portion 110 ′ and a body 130 ′ surrounding the hollow portion 110 ′ and a hollow portion 110 ′ are formed on one side of the hollow portion 110 ′. 10 '), a lip 150', a support 170 'coupled to the inner panel 50' of the door, and a vent-hole for contracting and compressing the hollow portion 110 ' (Not shown) to perform various functions of noise blocking and foreign material blocking as described above.

However, as shown in the solid line of FIG. 2, the weather strip 100 ′ of the conventional door 30 ′ has a structure that is simply pressed by the body panel 10 ′ in a state in which the door 30 ′ is closed ( Of course, when a separate weather strip (not shown) is mounted on the body panel 10 ', the weather strip 100' of the door 30 'closely adheres to a weather strip (not shown) on the body panel. It has a problem that the sealing function between the door 30 ′ and the body panel 10 ′ cannot be sufficiently performed.

In addition, in the stationary state, even if the sealing function is sufficient, a force applied to the weather strip 100 'by the pressure difference between the inside and outside of the vehicle due to the high speed driving of the vehicle may support the weather strip 100'. If it becomes larger, a gap occurs in a close contact surface of the weather strip 100 'and the body panel 10' (or the weather strip 100 'and a weather strip (not shown) on the body panel), Through this, the inflow and outflow of air is made, and accordingly, the intake passage is generated and the inflow passage of various external noises.

In view of these problems, a side weather strip of a car door (Domestic Utility Model No. 20-0144401), a cross-sectional structure of a side weather strip of a car door (Korean Patent No. 10-0189470), a weather strip for a car door (domestic) Utility Model Registration No. 20-0157284), Air Tube Type Door Weather Stripping Device (Domestic Registration Utility Model No. 20-0148103) for Automotive, Weather Stripping Device (Domestic Registration No. 10-0369017) for Automobile Doors and Vehicle Weather Strip Techniques such as an expansion and contraction device (Korean Patent No. 10-0448145) have been proposed.

However, the side weather strip of the automobile door (Domestic Utility Model No. 20-0144401), the cross-sectional structure of the side weather strip of the automobile door (Korean Patent No. 10-0189470), and the weather strip for the automobile door (domestic registration room) Shin-an No. 20-0157284) is a complete air-sealing function by forming a separate second air pocket in the conventional weather strip, adding a lip and tuck, or simply separating the material into a hard material and a soft material. In addition, there is still a problem that the durability is degraded by repeated use, the risk of being damaged by a certain shock or more, and there is still a problem of gap generation due to pressure difference between the inside and outside of the vehicle.

The automotive air tube-type door weather strip device (Domestic Utility Model No. 20-0148103), the weather strip device of the car door (Domestic Patent No. 10-0369017) and the vehicle weather strip expansion and contraction device (domestic registered patent) 10-0448145) is configured to allow the weather strip to expand and contract when the door is opened and closed by forcibly supplying air to the hollow inside the weather strip, but the vent hole formed in the existing weather strip (vent- Holes cannot be installed, which causes a large impact on the weather strip during opening and closing of the door, thereby directly affecting the durability of the weather strip, thereby shortening the life span.

In addition, due to its complicated structure and excessive facilities, it is not only difficult to apply to existing vehicles, but also difficult to maintain and repair in case of partial failure, and it is not easy to replace and replace the weather strip of the existing vehicle. There was a problem that the structural change of must be accompanied by necessity.

In addition, the above-mentioned techniques inevitably consist of a configuration in which air is sequentially supplied to the hollow portion of the weather strip to expand or discharge the air in sequence, and the weather strip is uniformly adhered to or separated from the body panel. It also has the disadvantage of not being able to perform a full sealing function.

That is, in order to improve the opening and closing performance of the door, it is preferable to form less rigidity of the weather strip, but in this case, there is a problem that the sealing effect is lowered due to the pressure difference during high-speed driving of the vehicle. When the rigidity is increased to prevent the deterioration of the sealing effect due to the pressure difference when the vehicle is driven at high speed, the opening and closing performance of the door is significantly reduced.

Therefore, there is a need for a new vehicle weather strip that can solve the above problems by using such variable characteristics.

The present invention was created in view of the above necessity, and has a gap between parts requiring sealing such as doors, engine rooms, trunk rooms, inspection covers, or sun roofs, etc., due to pressure differences inside and outside the vehicle according to high speed driving of the vehicle. It is possible to prevent the occurrence of the noise caused by the flow of air through the gap and various noises transmitted through the air, to block foreign substances such as dust, rain water, etc. to provide a vehicle weather strip for improving the heating and cooling performance of the vehicle The purpose.

In addition, another object of the present invention is to improve the opening and closing performance of the sealing portion as well as the sealing effect of the sealing portion by controlling the adhesion and traction force step by step according to the driving state of the vehicle, that is, the speed of the vehicle or the pressure difference between the inside and outside of the vehicle To provide a vehicle weather strip that maximizes.

In addition, another object of the present invention is to provide a vehicle weather strip that can be easily installed on the weather strip of the existing vehicle without changing the structure of the existing vehicle as well as replaceable with the weather strip of the existing vehicle.

In order to achieve the above object, the present invention is installed in a part requiring a sealing, such as a door, engine room, trunk room, inspection cover or sunroof of the vehicle, and in close contact with the body strip on each part or the weather strip on the body panel. In a vehicle weather strip for imparting a sealing effect, it is formed inside or outside the hollow part of the weather strip or the body surrounding the hollow part, and power is supplied or cut off according to a given condition so that the body panel or the weather on the body panel It is characterized in that the vehicle weather strip characterized in that it comprises a close contact with the strip or in close contact, the adhesion member is adjusted according to the change in the vehicle's running speed or the pressure difference between the inside and outside of the vehicle.

Here, the contact member is preferably made of any one of a magnetic body, an electromagnet, a combination of the magnetic body and the electromagnet or a mixture of magnetic powder and rubber.

In addition, the contact member is preferably made of a magnetic body sealing tube of the magnetic material and the fluid of a certain amount of fine particles mixed.

In addition, the contact member is preferably made of a rheological fluid tube made of MR fluid or ER fluid.

Herein, in order to prevent the solid particles of the magnetic encapsulation tube or the rheological fluid tube from being precipitated, it is preferable that precipitation prevention means are further provided inside and outside the magnetic encapsulation tube or the rheological fluid tube.

On the other hand, a permanent magnet, an electromagnet, a combination of an electromagnet and a magnetic body formed on the body panel or the weather strip on the body panel to face the contact member and capable of supplying a predetermined traction force to the contact member by a magnetic field or an electric field or More preferably, a traction member made of any one of the coils is further provided.

Here, the traction force of the traction member is more preferably supplied or cut off according to a given condition, or adjusted according to the change in the traveling speed of the vehicle or the pressure difference inside and outside the vehicle.

In addition, it is even more preferable to form a plurality of the contact member or the traction member in parallel in order to control the strength of the adhesion force or the traction force in stages.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art within the scope not departing from the technical gist of the present invention. It should be seen that the implementation is within the scope of the present invention.

3A and 3B are cross-sectional views of the present invention weather strip showing a case in which the contact member according to the present invention is made of an electromagnet, and FIGS. 4A to 4C are views showing the case of the contact member according to the present invention made of a magnetic body. 5 is a cross-sectional view of the vehicle weather strip of the present invention showing a case where the contact member according to the present invention is made of a mixture of magnetic powder and rubber, Figure 6a to 6c is a close contact of the magnetic member according to the present invention 7A to 7C are cross-sectional views of the present invention weather strip showing a case consisting of a tube and a rheological fluid tube, and FIGS. 7A to 7C are examples of precipitation preventing means according to the present invention. Is a transverse cross-sectional view of the present vehicle weather strip showing a state in which it is formed, and FIGS. 8A to 8C are close contact according to the present invention. It is sectional drawing of this vehicle weather strip in which a several member or a towing member is installed in parallel. However, for the sake of clarity, the above drawings are illustrated as being limited to the sealing portion between the vehicle weather strip 100 installed on the door 30 of the vehicle and the body panel 10 of the vehicle, and the lead portion is omitted.

First, the vehicle weather strip 100 of the present invention is formed inside and outside of the hollow portion 110 or the body 130 surrounding the hollow portion 110 of the weather strip 100, according to a given condition This supply or cutoff is in close contact with or isolated from the body panel 10 or a weather strip (not shown) on the body panel, or the degree of the adhesion force is changed according to a change in the traveling speed of the vehicle or the pressure difference between the inside and the outside of the vehicle. It comprises a contact member 200 is adjusted.

Here, the contact member 200 may be made of an electromagnet 201, as shown in Figure 3a and 3b. 3A and 3B, the dotted line shows the shape of the door is open, the solid line shows the shape of the door 30 is closed.

More specifically, as shown in FIG. 3A, when the body panel 10 is made of steel 11, the close contact member 200 may be configured as an electromagnet 201, or although not shown in the drawing, the electromagnet 201 may be used. It is preferable to configure the combination 305 of the magnetic body 203.

As such, when the close contact member 200 formed of the electromagnet 201 or the combination 305 of the electromagnet 201 and the magnetic body 203 is mounted on the inner circumferential surface of the hollow part 110 and energized with a constant current, The contact member 200 is in close contact with the body panel 10 in proportion to the strength of the current.

As a result, the present weather strip 100 is also in close contact with the body panel 10 integrally with the contact member 200 to perform the sealing function.

However, even if the close contact member 200 is made of an electromagnet 201 or a combination 305 of the electromagnet 201 and the magnetic body 203, the body panel 10 in close contact with the present weather strip 100 is made of steel. In the case of the aluminum alloy 13 other than (11) (or when the weather strip 100 is in close contact with a weather strip (not shown) on the body panel), the close contact member 200 is connected to the body panel even though there is energization. (10) (or a weather strip (not shown) on the body panel) is not in close contact. Therefore, when the body panel 10 is made of an aluminum alloy 13, as shown in Figure 3b should be provided with a separate traction member 300.

However, the traction member 300 is preferably provided at a position that can correspond to the contact member 200, that is, opposite the contact member 200.

More specifically, the traction member 300 is formed on the inner surface or the outer surface of the body panel 10 (or weather strip (not shown) on the body panel) to correspond to the contact member 200, The permanent magnet 307, the electromagnet 301, the combination of the electromagnet 301 and the magnetic body 203, 305 or any one of the coil 303 is preferred.

Here, the electromagnet 301, the combination 305 of the electromagnet 301 and the magnetic body 203 and the coil 303 of the traction member 300 by the supply / interruption of the power supply and the intensity control of the power supply Although the generation / dissipation of the traction force and the degree of traction force are adjusted, the permanent magnet 307 is capable of maintaining the traction force due to its own characteristics (generating and maintaining a stable magnetic field) without receiving electric energy from the outside. It has the advantage of being able to generate.

However, the permanent magnet 307 is carried out by moving the position inside the body panel 10 or a weather strip on the body panel by a dynamic force such as a link member (not shown) It is desirable to be able to generate or dissipate traction.

On the other hand, a part of the vehicle is provided with a control unit (not shown) for controlling the adhesion or traction of the contact member 200 or the towing member 300 by sensing the traveling speed of the vehicle or the pressure of the inside and outside of the vehicle It is preferable.

The control unit (not shown) serves to control the supply / blocking of power to the contact member 200 or the towing member 300 automatically according to a given condition, that is, an initially set value.

Here, the sensing means (not shown) for detecting the driving speed of the vehicle or the pressure inside and outside the vehicle may use respective sensing sensors. However, when detecting the vehicle speed, the instrument panel of the vehicle may be used without using a separate sensing sensor. This can be easily solved by using a tachometer or ECU terminal. In addition, the above-described control unit (not shown) and the sensing means (not shown) are the same in the following embodiments, of course.

On the other hand, Figures 4a to 4c and 5 is the vehicle weather strip showing the case in which the contact member 200 is made of a magnetic material 203 or a mixture of the magnetic powder and rubber (211) instead of the electromagnet 201 ( As a cross-sectional view of 100, the traction member 300 made of a permanent magnet or an electromagnet 301, or the traction member 300 made of a combination 305 of an electromagnet and a magnetic body or a coil (303 of FIG. 6C) is essential. It should be added and configured.

As described above, the contact member 200 formed of any one of a permanent magnet, an electromagnet, a combination of an electromagnet and a magnetic body, a magnetic body or a mixture of magnetic powder and rubber may have the hollow part (as shown in FIGS. 3 to 5). It may be formed without being attached to the inner surface of the body 110 or the inner surface or the outer surface of the body 130 surrounding the hollow portion 110.

Here, as a specific method for forming the contact member 200 in each place of the weather strip 100, first, the electromagnet 201, the electromagnet 201 and the magnetic body by using an adhesive means such as an adhesive tape or a general adhesive The combination 305 and the magnetic body 203 of 203 are fixed to each location where sealing is required.

In another forming method, the magnetic body 203 is finely powdered and mixed with an adhesive resin, and then fixedly mounted by applying to the outside or inside of the weather strip 100, that is, to each place where sealing is required. . However, it is more preferable to use the thermosetting adhesive resin for which adhesive resin is strong in heat resistance here.

In particular, as shown in Figure 5, when the contact member 200 is made of a mixture of magnetic powder and rubber 211, when the extrusion molding of the present weather strip 100, the magnetic powder in each place where the sealing is required And a method of integrally extruding the contact member 200 made of a mixed extrudates 211 of rubber and rubber. At this time, the skin of the mixed extrudates of the magnetic powder and the rubber may be molded into two layers by extrusion coating with pure rubber.

The application method of the above mounting method is simpler than the method using the adhesive tape, and the work time is also shortened to increase the production efficiency of the present weather strip 100,

The integral extrusion molding method can produce the present weather strip 100 by adding only the attachment step of the above-described magnetic powder and rubber mixed extrudates 211 to the production line of the conventional weather strip 100 '. This is possible, and unlike the method using the adhesive tape and the coating method does not add a separate operation has the advantage of reducing the production cost and maximizing the production efficiency.

However, in the above-described mounting method and integrated extrusion method, both the contact members 200 have a fixing force such that the contact member 200 is not separated or damaged from the weather strip 100 by a force of close contact or traction force according to the driving state of the vehicle. Of course it must be done.

In addition, the contact member 200 or the traction member 300 may be formed to surround the entirety of the hollow portion 110, or may be locally formed only in the region of interest where the inflow of noise or foreign matter is expected. The specific shape of the close contact member 200 made of the electromagnet 201 or the magnetic body 203 may be a band, and the curved shape may be easily formed, and the magnetic body 203 may be a steel band. It can be composed of various wires, wire mesh, etc.

On the other hand, Figure 6a to 6c is a cross-sectional view of the vehicle weather strip 100 of the present invention showing a case in which the contact member 200 according to the present invention made of a magnetic body sealing tube 205 including a magnetic body 203, more specifically FIG. 6A shows that the close contact member 200 is formed of a magnetic body encapsulation tube 205 in which a certain amount of fine particles of magnetic material 203 and a fluid are mixed, and the traction member 300 is composed of an electromagnet 301. 6B illustrates that the close contact member 200 includes a rheological fluid tube 207 made of an MR fluid 209, and the traction member 300 includes a combination 305 of an electromagnet 301 and a magnetic body 203. 6C is a close contact member 200 is made of a rheological fluid tube 207 made of ER fluid 217, the traction member 300 is made of a coil 303.

Here, the installation position of the magnetic encapsulation tube 205 or the rheological fluid tube 207 is the inside or the outer surface of the body 130 surrounding the hollow portion 110 or the hollow portion 110 as described above Is installed on.

More specifically, in the case where the contact member 200 according to the present invention is configured as the rheological fluid tube 207, the MR fluid 209 or the ER fluid 217 of FIGS. 6B and 6C may be subjected to a load of a magnetic field or an electric field. The state is changed from a liquid state to a solid state, and has a unique property of returning to the characteristics of the liquid again when the magnetic field or the electric field is not loaded. As shown in FIG. 6B, the close contact member 200 is connected to the MR fluid 209. In the case of consisting of a rheological fluid tube 207 made of a traction member 300 is composed of an electromagnet 301 or a combination 305 of the electromagnet 301 and the magnetic body 203 is configured to form a magnetic field,

When the close contact member 200 is composed of a rheological fluid tube 207 made of an ER fluid 217 as shown in FIG. 6C, the electric field is formed by forming the towing member 300 as a coil 303.

The reason why the contact member 200 is configured as the rheological fluid tube 207 is to adjust the strength of the magnetic field or the electric field, and in the case of the MR fluid 209, the form adheres directly to the contact member 200. In the case of the ER fluid 217, the viscosity of the ER fluid 217 is changed, so that the ER fluid 217 has an improved adhesion.

On the other hand, the magnetic fluid containing tube 205 including the magnetic body 203 or the rheological fluid tube 207 consisting of the MR fluid 209 or ER fluid 217 is contained in the iron powder, silica There is a fear that a certain precipitation occurs by the solid particles, such as polyurethane, cellulose.

That is, when the precipitation occurs, the degree of the above-mentioned traction force as well as the uniformity of the traction force are also weakened, so that the above-mentioned sealing effect cannot be expected completely, and thus, the precipitation prevention means is preferably provided. As shown in FIG. 7B, one or more small fins 213 or a plurality of separation partitions 215 installed in the magnetic encapsulation tube 205 or the rheological fluid tube 207 may be adopted.

Here, the fin 213 is provided inside the magnetic encapsulation tube 205 or the rheological fluid tube 207 as shown in FIG. 7A to generate a predetermined rotational force to prevent precipitation of solid particles. In FIG. 7A, reference numeral 209 is an MR fluid, and 217 is an ER fluid.

In addition, the separation partition 215 is formed at regular intervals as shown in Figure 7b to be integrally extruded together with the magnetic encapsulation tube 205 or the rheological fluid tube 207 to prevent precipitation of the solid particles. Alternatively, as illustrated in FIG. 7C, the magnetic body encapsulation tube 205 or the rheological fluid tube 207 may be inserted into the body.

Of course, the precipitation preventing means is not limited to the fin 213 and the separating partition 215, it is revealed that it may be configured to circulate the precipitate of the solid particles by receiving a constant circulation force from the external pump.

On the other hand, as shown in Figure 8a to 8c, it is preferable to form a plurality of the contact member 200 or the traction member 300 in parallel in order to control the strength of the adhesion or the traction force in stages.

That is, the adhesion member 200 or the traction member 300 may be formed in plural in parallel to increase the adhesion force or the traction force by a sequential supply of power, in which case the strength of the supplied power is increased. When adjusted, the adhesion and the traction force can be further subdivided and controlled to maximize the sealing effect described above.

Referring to the operation state of the vehicle weather strip 100 of the present invention configured as described above in detail as follows.

First, when the vehicle starts driving and reaches a condition value initially set, the controller (not shown) supplies power to the contact member 200 or the towing member 300 of the vehicle weather strip 100 of the present invention. By supplying or applying dynamic force to generate a constant adhesion or traction, it is possible to prevent the formation of gaps in areas requiring sealing such as doors 30, engine rooms, trunk rooms, inspection covers or sun roofs of vehicles, Shut off the inflow.

However, when the vehicle enters a high-speed driving state, the pressure difference between the inside and the outside of the vehicle becomes severe, thereby forming a gap in the sealing portion again or causing deformation in the weather strip 100, thereby causing various noises as well as the weather. This will cause breakage of the strip 100.

As described above, when the vehicle travels at or above a predetermined speed, the controller (not shown) is connected to the contact member 200 by a signal transmitted from a sensing means (not shown) for detecting the traveling speed or a pressure difference between the inside and the outside. To control the adhesion or traction force of the traction member 300 step by step.

Here, the step of controlling the adhesion or the traction force is made by adjusting the intensity of the power supplied to the adhesion member 200 or the traction member 300, or the adhesion member 200 or the traction member 300 By installing a plurality of parallel to supply the power sequentially or by adjusting the intensity of the supplied power or by applying dynamic force sequentially.

By controlling the strength of the adhesion or the traction force in this manner, it is possible to create a perfect sealing effect during driving, especially during high-speed driving.

On the contrary, when the vehicle speed decreases and the pressure difference between the inside and the outside decreases, the controller (not shown) controls the adhesion or traction force of the contact member 200 or the towing member 300 by a signal of the detection means (not shown). Decrease in stages.

In addition, when the vehicle is stopped, in order to improve the opening and closing performance of the vehicle, the contact force or the traction force is completely eliminated by cutting off the power or dynamic force supplied to the contact member 200 or the towing member 300. Let's go.

Here, the control method for blocking or gradually reducing the adhesion or traction is as described above.

As described above, the hollow portion of the weather strip or the inside and outside of the body surrounding the hollow portion is mounted, the power is supplied or cut off in accordance with a given condition in close contact with or isolated on the body panel of each place, or the running speed of the vehicle Or the vehicle weather strip of the present invention comprising a close contact member which is adjusted to the degree of the contact force in accordance with the change in the pressure difference between the inside and outside of the vehicle provides the following effects.

First, by providing the contact member or the towing member having a coercive force or a traction force in accordance with the driving state of the vehicle, the door, engine room, trunk room, inspection of the vehicle due to the pressure difference inside and outside the vehicle according to the high-speed driving of the vehicle It prevents the occurrence of gaps in the parts requiring sealing such as a cover or a sunroof to block the noises caused by the inflow and outflow of air through the gaps, and to prevent the inflow of foreign substances such as dust and rainwater. Provide effect.

Second, when the body panel is made of steel, the contact member is composed of an electromagnet or a combination of an electromagnet and a magnetic body without providing a separate traction member, thereby greatly simplifying the structure and manufacturing cost as well as maintenance, maintenance and installation costs. It provides a savings effect.

Third, the contact member made of a magnetic material or a mixture of magnetic powder and rubber, etc. is formed inside or outside the present weather strip by the above-described mounting method, application method or integrally extrusion molding method, thereby simplifying work and working time. At the same time, it is possible to use a production line by conventional extrusion as it is, no additional work is required, thereby reducing the production cost and increase the production efficiency, and also has the advantage that can be produced in a large amount of the weather strip.

Fourth, the close contact member is composed of a magnetic material encapsulation tube in which a certain amount of fine particles of magnetic material and fluid are mixed or a rheological fluid tube made of MR fluid or ER fluid, thereby improving the opening and closing performance of the sealing part, and the present weather by high speed driving It provides an effect of maximizing the sealing effect of the sealing portion while preventing unnecessary deformation applied to the strip.

Fifth, the power supply or dynamic power is supplied / blocked according to a given condition, or the power supply or power is adjusted by detecting a change in the traveling speed of the vehicle or the pressure difference inside or outside the vehicle, or the plurality of contact members or the towing members are provided. In parallel, the contact force or the traction force can be appropriately sequentially and stepwise controlled according to the driving state of the vehicle.

Sixth, the contact member or the contact member and the towing member according to the present invention can be laid or replaced without changing the structure of the weather strip of the existing vehicle, so as to reduce manufacturing and installation costs, as well as maintenance and repair costs. Provide significant savings.

Seventh, by maximizing the adhesion of the existing sealing portion of the vehicle to prevent the temperature loss flowing out from the inside of the vehicle to the outside of the vehicle provides an effect of improving the performance of heating and cooling.

In addition, the present invention is not limited to what has been described above and illustrated in the drawings, and of course, more modifications and variations are possible within the scope of the following claims.

Claims (8)

In a vehicle weather strip which is installed at a part requiring a sealing such as a door, an engine room, a trunk room, an inspection cover, or a sun roof of a vehicle, and closely adheres to a body strip of each part or a weather strip on a body panel, A close contact member formed in the inside and the outside of the hollow part of the weather strip or the body surrounding the hollow part, and formed of a magnetic body encapsulation tube in which a certain amount of magnetic material and a fluid are mixed; A traction member which is formed on the body panel or the weather strip on the body panel so as to face the contact member, and comprises one of an electromagnet, a combination of an electromagnet and a magnetic body, and a coil to pull the contact member according to a power supply; Vehicle weather strip characterized in that it comprises a. In a vehicle weather strip which is installed at a part requiring a sealing such as a door, an engine room, a trunk room, an inspection cover, or a sun roof of a vehicle, and closely adheres to a body strip of each part or a weather strip on a body panel, An adhesive member formed inside and outside of the hollow portion of the weather strip or the body surrounding the hollow portion, and formed of a rheological fluid tube made of MR fluid or ER fluid; A traction member which is formed on the body panel or the weather strip on the body panel so as to face the contact member, and comprises one of an electromagnet, a combination of an electromagnet and a magnetic body, and a coil to pull the contact member according to a power supply; Vehicle weather strip characterized in that it comprises a. In a vehicle weather strip which is installed at a part requiring a sealing such as a door, an engine room, a trunk room, an inspection cover, or a sun roof of a vehicle, and closely adheres to a body strip of each part or a weather strip on a body panel, An adhesion member formed integrally with a body surrounding the hollow portion of the weather strip and made of a mixture extruding material of magnetic powder and rubber; A traction member which is formed on the body panel or a weather strip on the body panel so as to face the contact member, and comprises an electromagnet or a combination of an electromagnet and a magnetic material to pull the contact member according to a power supply; Vehicle weather strip characterized in that it comprises a. delete delete delete delete delete

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