JP2007001553A - Weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip with low reaction force and excellent sealing performance in which deformation of a hollow part of the weather strip is slack, stress is not concentrated and deformation property is enhanced. <P>SOLUTION: In the weather strip mounted to a door sill part 1 of a vehicle, a position of a hollow base part 70 for forming the hollow part 60 of the weather strip is arranged above a higher position than a lower end 80 of a door panel. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a weather strip attached to a door sill portion of a vehicle or the like having a tread plate.

  Conventionally, weatherstrips are used in various parts of the vehicle to prevent rainwater from entering or leaking into the vehicle. A weatherstrip that is attached to a door sill portion of a vehicle having a tread plate is shown in FIG. Such an example has been proposed.

  FIG. 2 is a cross-sectional view of a weather strip attached to the door sill portion 1 of FIG. In this example, a sill applique 5 is fitted to a tread plate 2 of a vehicle, and a weather strip 3 is attached to a U-shaped groove constituting the sill applique 5. The weather strip 3 is fixed by elastically contacting the lips 9 and 10 provided in the section with the inner surface of the U-shaped groove constituting the sill applique 5. Further, since the hollow portion 6 of the weather strip 3 may be caught and damaged when getting on and off by a driver or the like, conventionally, the material constituting the hollow portion 6 is composed of a hard material or a flexible material coated with a hard material. Yes.

  However, such a conventional example shown in FIG. 2 has a problem that the reaction force is high and the door closing force is high because the hollow portion 6 is made of a hard material. In addition, when the hard material is deformed at one end, there is a problem that its recoverability is poor and water leakage or the like is concerned. The cause is that the hollow base portion 7 is at a position lower than the lower end portion 8 of the door panel as shown by a broken line in FIG. For this reason, there is a problem that the deformation load is large and the restoration becomes difficult.

  As described above, in the conventional weather strip attached to the door sill portion of the vehicle having the tread plate, the hollow portion 6 is made of a hard material, so that not only the reaction force is high but the door closing force is high. However, when the hard material is deformed at one end, there is a problem that its restoration property is poor and there is a concern about water leakage. Furthermore, since the hollow base portion 7 is located at a position lower than the lower end portion 8 of the door panel, the hollow portion is greatly deformed so as to be crushed. Therefore, there is a problem that the deformation load is large and difficult to restore, and the deformation of the hollow portion is slow. There has been a demand for the development of a weather strip that improves the deformability without stress concentration and has a low reaction force and an excellent sealing performance.

  As a result of intensive studies on the weather strip in view of the above problems, the present inventors have completed the present invention.

  It is an object of the present invention to provide a weather strip that has a mild weather strip hollow portion that is moderately deformed without stress concentration and has a low reaction force and excellent sealing performance.

  1st of this invention is the weather strip attached to the door sill part 1 of a vehicle, Comprising: The position of the hollow root part 70 which forms the hollow part 60 of a weather strip is arrange | positioned in the position higher than the door panel lower end part 80, It is characterized by the above-mentioned. To weather strip.

  A second aspect of the present invention relates to the weather strip according to the first aspect, wherein the hollow upper half 30 is made of a hard material and the hollow lower half 200 is made of a soft material.

  In the weather strip of the present invention, since the position of the hollow base portion 70 forming the hollow portion 60 is located higher than the lower end portion 80 of the door panel, the hollow portion 60 is deformed so that the lip is bent as a whole. Since the deformation of the portion 60 is gradual and the reaction force can be lowered without stress concentration, it has the effect of being flexible and excellent in resilience. Therefore, it also has an effect of having a good sealing property without entering rainwater or leaking water.

  In addition to the structure of the first invention, the weather strip according to the second invention of the present invention has a hollow upper half 30 made of a hard material and a hollow lower half 200 made of a sponge rubber material. The sponge rubber material of the lower half 200 has an excellent effect that the deformability can be further improved and the reaction force can be lowered.

  In addition, the weather strip of the present invention has a hollow lower half portion 200 constituting the hollow portion 60 in the back side of the hollow portion, that is, a hidden position, so that there is no problem of getting caught in getting on and off the automobile, and it is possible to get on and off smoothly. is there.

  Further, the weather strip of the present invention is equivalent to the conventional product in the function of preventing noise due to the hollow shape. On the other hand, a single lip has low reaction force but poor soundproofing, and there is a concern about the rip wave.

    The present invention will be specifically described below, but the present invention is not limited to these descriptions.

  The configuration of the present invention will be described with reference to FIGS. 1, 3, and 4. FIG. FIG. 3 is a cross-sectional view of a weather strip attached to the door sill part 1 of FIG. 1 showing an embodiment of the present invention. FIG. 4 is a modified cross-sectional view of the hollow portion 60 when the door according to the embodiment of the present invention is closed.

  The weather strip according to the present invention is a weather strip that is attached to the door sill portion 1 of the vehicle, and has a configuration in which the position of the hollow root portion 70 that forms the hollow portion 60 of the weather strip is positioned higher than the lower end portion 80 of the door panel. Thus, the position of the hollow base portion 70 forming the hollow portion 60 is configured to be higher than the lower end portion 80 of the door panel, so that the hollow portion 60 is deformed so that the lip is bent as a whole. Deformation is gradual, there is no stress concentration, and the reaction force can be lowered, so that it is flexible and exhibits excellent restorability. Therefore, the door can be opened and closed smoothly, and it has a good sealing property without causing rainwater or the like to enter or leak.

  Further, in the weather strip of the present invention, the hollow upper half 30 constituting the hollow portion 60 is made of a hard material and the hollow lower half 200 is made of a soft material such as a sponge rubber material to improve the deformability. The reaction force can be lowered, and a flexible and excellent restoration property is exhibited.

  In addition, the weather strip of the present invention is configured so that the hollow lower half portion 200 constituting the hollow portion 60 is configured at the back side of the hollow portion, that is, in a hidden position, thereby eliminating the problem of getting on and off the automobile and getting on and off smoothly. Is possible.

  The structure of the weather strip of the present invention will be described in more detail with reference to FIGS. As shown in FIG. 3, the durable and flexible weather strip of the present invention is fitted with a sill applique 50 on a tread plate 20 of a vehicle and attached to a U-shaped groove constituting the sill applique 50. Is done. The hollow mounting portion 110 is configured as follows. First, a bottom wall 111 that can be fixed to the U-shaped bottom of the sill applique 50 with fixing means such as a clip or a double-sided tape, and a lower wall that extends from the lower end of the bottom wall 111 and follows the sill applique 50 112, an upper wall 113 following the applique 50 extending from the upper end of the bottom wall 111, a lower wall 112 and the upper wall 113 are connected to each other, and a hollow portion connecting wall 114 is connected to connect the hollow portion 60. The lip 90, 100 and 101 provided at the end of the weather strip is elastically brought into contact with the inner surface of the U-shaped groove constituting the sill applique 50 to fix the weather strip. In the embodiment of the present invention, since the weather strip is elastically contacted and fixed by the two lips 100 and 101 at the lower part of the weather strip, the weather strip can be fixed more stably.

  Further, when the weather strip of the present invention is assembled to the door sill portion 1 and the door panel 40 is closed, the deformation of the hollow portion 60 is gradual without being crushed and stress concentration does not occur, as shown in FIG. Accordingly, the reaction force can be lowered, the flexible and excellent restoring property can be exhibited, the door can be opened and closed smoothly, and good sealing performance can be obtained without entering rainwater or leaking water.

  In addition, the weather strip of the present invention has a bottom wall 150 that makes the hollow portion 60 abut on the upper end wall (tread plate) of the vehicle body mounting portion, and the bottom of the vehicle while projecting from the lower end portion of the bottom wall 150 toward the lower end portion 80 of the door panel. A hollow upper half 30 that bends in the direction, and a lower lower half 200 that connects the lower end of the bottom wall 150 and the hollow upper half 30 and protrudes to the opposite side of the hollow upper half 30. Yes. By adopting such a configuration, the tendency of the hollow portion 60 to bend toward the vehicle lower side by the door panel lower end portion 80 is further ensured, and the reaction force is low and the sealing performance can be further improved. .

  In addition, the weather strip of the present invention has a configuration in which the hollow upper half is in elastic contact with the door panel. By adopting such a configuration, the tendency of the entire hollow shape to bend toward the lower side of the vehicle becomes more reliable, and the reaction force is low and the sealing performance can be further improved.

  Another embodiment of the present invention is shown in FIGS. As shown in FIGS. 5 and 6, the weather strip of the present invention is only required to have the hollow root portion forming the hollow portion disposed at a position higher than the lower end portion of the door panel. It is not limited to the example.

    The weather strip of FIG. 5 connects the hollow part 60 between the center part and upper end part of the hollow part connection wall 114 of the hollow attachment part 110, and both the hollow upper half part 30 and the hollow lower half part 200 are from the hollow root 70. It is the example of a shape toward the upper side.

    The weather strip of FIG. 6 has a hollow root 70 connected to the vicinity of the connecting portion between the hollow connecting wall 114 and the upper wall 113 of the hollow mounting portion 110, and the hollow connecting portion 70 is connected to the first bent portion 21 of the tread plate 20. Extending along the second bent portion 22, the bottom wall 150, the hollow upper half 30 and the hollow lower half 200 are connected to the tip of the hollow connecting portion 70, and both the hollow upper half 30 and the hollow lower half 200 are connected. This is an example of a shape directed downward from the hollow root 70.

  Further, as described above, in the embodiment example of the weather strip of the present invention, only the example in which the weather strip of the vehicle having the tread plate is attached to the door sill portion is illustrated and described, but the present invention is not limited to this. Although not shown, the present invention can also be applied to the case where the weather strip is attached to the automobile with a double-sided tape or a clip.

  In the weather strip of the present invention as described above, since the position of the hollow base portion 70 forming the hollow portion 60 is arranged above the door panel lower end portion 80, the hollow portion 60 is bent as a whole. Since the deformation of the hollow portion 60 is gentle and the reaction force can be lowered without concentration of stress, it has the effect of being flexible and excellent in resilience. Therefore, it also has an effect of having a good sealing property without entering rainwater or leaking water.

  Further, the weather strip of the present invention comprises the hollow upper half 30 made of a hard material and the hollow lower half 200 made of a soft material such as a sponge rubber material. Has an excellent effect of further improving the deformability and lowering the reaction force.

  In addition, the weather strip of the present invention has a hollow lower half portion 200 constituting the hollow portion 60 in the back side of the hollow portion, that is, a hidden position, so that there is no problem of getting caught in getting on and off the automobile, and it is possible to get on and off smoothly. is there.

It is a sketch of a car. It is sectional drawing of the weather strip which shows a prior art example. It is sectional drawing of the weather strip which shows the example of embodiment of this invention. It is sectional drawing of the weather strip which shows the vehicle assembly state of the embodiment of this invention. It is sectional drawing of the weather strip which shows the other embodiment of this invention. It is sectional drawing of the weather strip which shows the other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door sill part 2 Tread plate 3 Weather strip 4 Door panel 5 Sil applique 6 Hollow part 7 Hollow root part 8 Door panel lower end part 9 Lip 10 Lip 20 Tread plate 30 Hollow upper half part 40 Door panel 50 Sil applique 60 Hollow part 70 Hollow base 80 Door panel lower end 90 Lip 100 Lip 101 Lip 102 Bottom wall 103 Bottom wall upper end 104 Bottom wall lower end 110 Hollow mounting portion 111 Bottom wall 112 Lower wall 113 Upper wall 114 Hollow connection wall 150 Hollow bottom wall 200 Hollow lower half

Claims (2)

  A weather strip that is attached to a door sill portion 1 of a vehicle, wherein a position of a hollow base portion 70 that forms a weather strip hollow portion 60 is located higher than a lower end portion 80 of a door panel.   The weather strip according to claim 1, wherein the hollow upper half 30 is made of a hard material and the hollow lower half 200 is made of a soft material.

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