JP3886861B2 - Wind Mall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wind molding that is attached to an outer peripheral edge of a window glass of a vehicle and closes a gap with an inner peripheral wall surface of a vehicle body opening.
[0002]
[Prior art]
As described in JP-A-10-35272, JP-A-10-53024, and the like, an outer peripheral portion of a wind glass such as a windshield or rear glass of a vehicle such as an automobile is generally provided on a vehicle body. A wind molding for closing the gap with the opening is fixedly attached. The window molding typically has a channel-shaped molding body attached to the outer peripheral edge of the window glass, and projects from the outer peripheral wall portion of the molding main body to the outer peripheral side, and comes into contact with the inner peripheral wall surface of the vehicle body opening. And a thin plate-like seal lip, and each part is extruded by a resin material or a rubber material.
[0003]
[Problems to be solved by the invention]
While the vehicle is running, the space outside the seal lip becomes negative pressure, creating a pressure difference between the inside of the seal lip and the outside of the vehicle. In this case, there is a problem that the seal lip flutters (vibrates) or generates noise such as wind noise.
[0004]
In order to solve such a problem, even if the seal lip is simply formed as a hollow seal body, and the hollow seal body and the inner peripheral wall surface of the vehicle body opening are brought into contact with each other, the gap between the hollow seal body and the inner peripheral wall surface is prevented. The air flow through cannot be sufficiently suppressed, and further improvements are desired.
[0005]
The present invention has been made in view of such problems, and suppresses the flow of air through the gap between the hollow seal body and the inner peripheral wall surface of the vehicle body opening during vehicle travel, and the hollow seal body resulting therefrom The main purpose is to provide a novel wind molding that can satisfactorily suppress fluttering (decrease in sealing performance) and noise generation.
[0006]
[Means for Solving the Problems]
A wind molding according to the present invention includes a molding main body attached along the outer peripheral edge of a window glass of a vehicle, and a hollow seal body projecting in a hollow shape from the outer peripheral wall portion of the molding main body to the outer peripheral side. Yes. The hollow seal body protrudes from the outer peripheral wall portion so as to connect the pair of the outer side piece portion and the inner side piece portion, and the protruding end portion of the outer side piece portion and the protruding end portion of the inner side piece portion. A seal piece connected to the end, and the seal piece comes into surface contact with the inner peripheral wall surface of the vehicle body opening. In the first aspect of the invention, the vehicle outer piece and the vehicle inner piece are substantially parallel to each other, and in a natural length state, the cross section of the seal piece with the vehicle outer piece is substantially V-shaped. The seal piece portion is inclined with respect to the inner peripheral wall surface of the vehicle body opening so that the corner portion of the windshield projects to the outer peripheral side of the window glass, and in the assembled state, the hollow seal body is elastically deformed, and The seal piece part is in surface contact with the inner peripheral wall surface of the vehicle body opening, and the seal piece part is substantially parallel to a part of the outer peripheral wall part of the molding body so that the vehicle outer piece, the vehicle inner piece and the seal are sealed. A hollow space in the hollow seal body defined by the one part and a part of the outer peripheral wall part of the molding body has a substantially parallelogram shape, and a substantially V-shaped cross section between the outer side piece part and the outer peripheral wall part. A drip space is formed .
[0007]
With such a configuration, the hollow seal body is given an appropriate structural strength, and the seal piece is pressed against the inner peripheral wall surface of the vehicle body opening even when the vehicle is traveling at high speed. Adheres well to the wall. For this reason, the air flow which passes through the clearance gap between a hollow seal body and an inner peripheral wall surface is interrupted | blocked, and fluttering of a hollow seal body and generation | occurrence | production of noise can be suppressed reliably.
[0008]
More preferably, the vehicle inner piece and the seal piece are thinner than the vehicle outer piece. In this case, the elastic deformation of the vehicle outer side piece is suppressed, and the vehicle inner side piece and the seal piece are less affected by noise and appearance while suppressing the fluttering of the vehicle outer side piece, which has a large influence on the generation and appearance of noise. Since the thickness is relatively reduced, the weight can be reduced and the material cost can be reduced.
[0009]
More preferably, a root portion connected to the outer peripheral wall portion in the vehicle inner piece portion is formed of the same rubber or resin material as the molding body, and a hollow seal body other than the root portion is the molding body. And a softer rubber or resin material than the base portion. In this way, by relatively hardening the root part of the vehicle interior piece part, it is possible to reliably ensure a gap in the part near the outer peripheral wall part in the hollow space formed inside the hollow seal body, The desired performance as the hollow seal body described above, that is, the structural strength can be ensured reliably.
[0010]
In other words, if all of the hollow seal body including the root portion of the vehicle interior piece is made of a soft material, the root portion is easily elastically deformed, so that the gap is secured. As a result, the desired structural strength cannot be obtained, and as a result, the hollow seal body may not be pressed well against the inner peripheral wall surface of the vehicle body opening.
[0011]
Preferably, it has an extended seal portion that is continuously extended from the seal piece and is in surface contact with the inner peripheral wall surface. In this case, without changing the shape of the hollow space inside the hollow seal body, the surface contact range with the inner peripheral wall surface of the vehicle body opening can be increased to improve the sealing performance.
[0012]
According to a second aspect of the present invention, there is provided a thin-walled portion that is thinned so as to cut out an inner portion of a corner portion having a substantially V-shaped cross section where the seal piece portion and the vehicle outer piece portion are connected to each other from the seal piece portion. It is characterized by being formed over the outer piece.
[0013]
【The invention's effect】
As described above, according to the present invention, an appropriate structural strength is given to the hollow seal body, and the seal piece is pressed against the inner peripheral wall surface of the vehicle body opening even when the vehicle is traveling at high speed. The part adheres well to the inner peripheral wall surface. For this reason, the air flow which passes through the clearance gap between a hollow seal body and an inner peripheral wall surface is interrupted | blocked, and flapping of a hollow seal body, generation | occurrence | production of noise, etc. can be suppressed reliably.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. Referring to FIG. 5, a window molding 10 is attached to the outer peripheral edge of a window glass (front glass) 1 disposed in the vehicle body opening 2 of the vehicle in a so-called fitted-in state. The wind molding 10 typically has a strip shape with a substantially uniform cross-sectional shape that is attached from the upper side 1b to the side sides 1c of the wind glass 1, and is integrally molded with each part using a rubber material or a resin material.
[0015]
Referring to FIG. 1, an inner peripheral wall surface 2 a is formed in the vehicle body opening 2 so as to be bent from the vehicle outer surface 2 b exposed to the vehicle outer side to the vehicle inner side to face the outer peripheral end surface 1 a of the window glass 1. Yes. The inner peripheral wall surface 2 a is inclined with respect to the outer peripheral end surface 1 a of the window glass 1 so that the vehicle outer side (upper side in FIG. 1) is far from the window glass 1. The window molding 10 includes a molding body 11 fixedly attached to the outer peripheral edge of the window glass 1 and a hollow seal projecting in a hollow shape from the outer peripheral wall section 13 of the molding body 11 to the outer peripheral side of the glass (right side in FIG. 1). And a body 12.
[0016]
The molding body 11 protrudes from the both ends of the outer peripheral wall 13 to the inner peripheral side (left side in FIG. 1) of the outer peripheral wall 1 facing and abutting the outer peripheral end surface 1 a of the window glass 1. It has a pair of leg portions 14 and 15 facing and abutting the inner and outer surfaces, and has a substantially channel shape that covers the outer peripheral edge of the window glass 1 from three directions as a whole. The window glass outer peripheral end face 1a and the outer peripheral wall portion 13 are bonded and fixed with an adhesive or the like. In the molding body 11, a cored bar 16 that regulates the expansion and contraction of the wind molding 10 in the longitudinal direction is integrally embedded at the time of extrusion molding.
[0017]
The hollow seal body 12 includes a pair of an outer side piece portion 17 and an inner side piece portion 18 that integrally protrude from the outer peripheral wall portion 13 of the molding body 11 to the outer peripheral side, and the protruding end portions of the two piece portions 17 and 18. A seal piece 19 connected to the projecting ends of the two pieces 17 and 18 so that the seal piece 19 faces the inner peripheral wall surface 2a of the vehicle body opening 2 in the assembled state of the vehicle. Contact. A hollow space 21 is defined by the three pieces 17, 18 and 19 of the hollow seal body 12 and a part 20 of the outer peripheral wall 13 of the molding body 11. Further, a drip space 22 having a substantially V-shaped cross section for receiving rainwater or the like is formed between the vehicle outer side piece portion 17 and the outer peripheral wall portion 13.
[0018]
A hollow seal body 12 indicated by a solid line in FIG. 1 shows a posture in an assembled state (a state where the hollow seal body 12 is in surface contact with the inner peripheral wall surface 2a of the vehicle body opening 2), and the hollow seal body 12 indicated by a broken line in FIG. The posture in a natural length state (a state in which the vehicle body opening 2 is not in contact with the inner peripheral wall surface 2a) is shown. In both the assembled state and the natural length state, the vehicle outer piece 17 and the vehicle inner piece 18 are arranged substantially in parallel. Particularly in the assembled state, the part 20 of the outer peripheral wall 13 and the seal piece 19 are substantially parallel. Therefore, in the assembled state, the hollow space 21 has a substantially parallelogram shape.
[0019]
A hollow seal body 12 indicated by a broken line in FIG. 2 indicates a posture in a steady state (vehicle stopped state), and a hollow seal body 12 indicated by a solid line in FIG. 2 indicates a posture in a vehicle high-speed traveling state. When the vehicle travels at a high speed, the space outside the vehicle with respect to the hollow seal body 12 becomes negative pressure. Therefore, the pressure P1 at the portion outside the vehicle from the hollow seal body 12 is lower than the pressure P2 at the portion inside the vehicle from the hollow seal body 12 and the pressure P3 inside the hollow space 21. For this reason, generally, the hollow seal body 12 flutters so that the corner portion 25 between the vehicle outer side piece portion 17 and the seal piece portion 19 is turned up to the inner peripheral side of the glass (the left side in the figure). Air tends to flow from the inside of the vehicle to the outside of the vehicle through the gap between 19 and the inner peripheral wall surface 2a of the vehicle body opening 2, and this may cause a decrease in sealing performance and noise such as wind noise.
[0020]
On the other hand, in the present embodiment, the vehicle outer piece 17 and the vehicle inner piece 18 are substantially parallel to each other, and the hollow space 21 has a substantially parallelogram shape with excellent structural strength. Due to such structural features of the hollow seal body 12, the seal piece portion 19 and the inner peripheral wall surface 2a are in good contact with each other even when the vehicle is running, and fluttering, noise, etc. of the hollow seal body 12 due to the air flowing through the gap are prevented. It can be surely suppressed.
[0021]
In addition, as shown by the broken line in FIG. 1, the hollow seal body 12 in the natural length state is wrapped to the vehicle body opening 2 side so as to overhang the glass outer peripheral side beyond the inner peripheral wall surface 2a, In particular, the seal piece portion 19 in the natural length state is inclined with respect to the inner peripheral wall surface 2a so that the corner portion 25 protrudes most toward the outer peripheral side of the glass (the right side in FIG. 1). For this reason, the close contact force between the seal piece 19 and the inner peripheral wall surface 2a in the vehicle assembled state is sufficiently secured, and particularly the close contact force of the corner portion 25 is strengthened, so that the phenomenon that the corner portion 25 is turned up is surely suppressed. can do.
[0022]
Further, the vehicle outer side piece portion 17 is curved in a substantially arc shape that bulges convexly toward the vehicle outer side (upper side in the figure). For this reason, as shown by a broken line in FIG. 2, when the hollow seal body 12 is deformed so as to swell when the vehicle is running, the vehicle outer piece 17 is elastically deformed so as to stand up with respect to the inner peripheral wall surface 2a. The vehicle outer side piece 17 is strongly pressed against the inner peripheral wall surface 2a, and the adhesion force thereof is further effectively improved.
[0023]
In addition, the vehicle inner piece 18 and the seal piece 19 are thinner than the vehicle outer piece 17 as a whole. That is, the average thickness b of the vehicle interior piece 18 and the average thickness c of the seal piece 19 are set shorter than the average thickness a of the vehicle exterior piece 17. For this reason, the elastic deformation of the vehicle outer side piece portion 17 is relatively suppressed, and the vehicle having less influence on the fluctuation and noise etc. while effectively suppressing the flapping of the vehicle outer side piece portion 17 and the turning up of the corner portion 25. The inner piece 18 and the seal piece 19 can be relatively thinned to reduce the weight and the cost by reducing the material.
[0024]
Further, in the vehicle interior piece portion 18, a root portion 23 connected to the outer peripheral wall portion 13 is integrally formed of the same relatively hard rubber or resin material as that of the molding body 11. That is, the hollow seal body 12 other than the root portion 23 is formed of a rubber or resin material that is softer than the molding body 11 and the root portion 23. In addition, the vehicle outer side piece portion 17 and the vehicle inner side piece portion 18 have a shape that tapers toward the tip connected to the seal piece portion 19. For this reason, the predetermined gap ΔD can be reliably ensured in the portion of the hollow space 21 near the outer peripheral wall portion 13, and the above-described desired structural strength can be stably obtained. In other words, for example, when the root portion 23 of the vehicle interior piece portion 18 is formed of the same soft material as that of the other hollow seal bodies 12, the portion near the outer peripheral wall portion 13 of the hollow space 21 is crushed. It becomes easy to elastically deform, the above-mentioned gap ΔD cannot be secured, and it becomes difficult to secure the desired structural strength as the hollow seal body 12.
[0025]
Further, an extension seal portion 26 that is in surface contact with the inner peripheral wall surface 2 a of the vehicle body opening 2 is continuously extended from the end portion on the vehicle inner side of the seal piece portion 19 in the hollow seal body 12. By this extended seal portion 26, the surface contact range with the inner peripheral wall surface 2a is expanded without impairing the desired shape (substantially parallelogram shape) of the hollow space 21, and a more stable sealing property can be secured. .
[0026]
The present invention is not limited to the above embodiment. For example, as shown in FIG. 3, a vehicle outer side extension seal portion 27 formed to extend from the vehicle outer end portion of the seal piece portion 19 to the vehicle outer side may be used in combination with the extension seal portion 26 described above. As shown in FIG. 4, only the vehicle exterior extension seal portion 27 may be provided without providing the extension seal portion 26. Similarly to the extension seal portion 26, the vehicle exterior extension seal portion 27 also has a function of expanding the surface contact range with the inner peripheral wall surface 2 a of the vehicle body opening 2 without impairing the intended shape of the hollow seal body 12. is doing.
[0027]
FIGS. 6-10 is sectional drawing which shows the wind molding which concerns on the 2nd Embodiment of this invention. In particular, FIG. 6 corresponds to a free state in which the vehicle body opening 2 is not in contact with the inner peripheral wall surface 2a, FIG. 7 corresponds to a deformation process during the assembly to the vehicle body, and FIG. 8 corresponds to a state after completion of the vehicle body assembly. . In FIG. 10, the solid line represents the assembled state, and the broken line represents the free state.
[0028]
In the wind molding of the second embodiment, the vehicle outer piece 17 and the vehicle inner piece 18 are substantially parallel to each other (the hollow space 21 is substantially a parallelogram), as in the case of the wind molding shown in FIGS. Yes, the vehicle inner piece 18 and the seal piece 19 are thinner than the vehicle outer piece 17, and only the base portion 23 of the vehicle inner piece 18 is hardened in the hollow seal body 12. And, the extended seal part 26 is formed on the seal piece part 19 and has almost all the characteristic shapes and functions described above. Accordingly, the same reference numerals are assigned to the same portions, and redundant description is omitted, and only the characteristic configuration and operational effects of the second embodiment will be described.
[0029]
The corner portion 25 where the vehicle outer side piece portion 17 and the seal piece portion 19 are connected in a substantially V-shaped cross section has a thin portion 28 that is partially thinned so as to cut out the inner portion facing the hollow space 21. The seal piece 19 extends from the vehicle outer piece 17. In other words, as shown in FIG. 9, in the corner portion 25, the inner portion 30 facing the hollow space 21 is thinned (concave) in an arrowhead shape, and the portion remaining on the outer peripheral side is substantially constant in thickness. The thin-walled portion 28 is formed. Therefore, the thin wall portion 28 forms a continuous curved surface whose outer surface is substantially the same as the other general surfaces of the vehicle outer side piece portion 17 and the seal piece portion 19, while its inner side surface is the vehicle outer side. It dents to the outer surface side with respect to the other general surface of the piece 17 and the seal piece 19.
[0030]
Since the thin portion 28 is thinner than the other general portions of the vehicle outer side piece 17 and the seal piece 19, it can be easily and appropriately elastically deformed when assembled to the vehicle body. Specifically, when assembled to the vehicle body, the bending position 29 where the vehicle outer side piece 17 and the seal piece 19 are bent at an acute angle is a position on the vehicle outer side piece 17 side (in a direction far from the seal piece 19). Position) It can move to roll towards 29 ′. As a result, in the state after assembly, the portion along the vehicle outer side piece portion 17 is substantially shorter than the free state before assembly, and is along the seal piece portion 19 in surface contact with the inner peripheral wall surface 2a. The portion will be substantially longer.
[0031]
FIG. 11 shows a seal lip according to a comparative example. This comparative example is different from the second embodiment only in that the thin portion 28 is not formed. The vehicle outer side piece portion 17 is set to be sufficiently long so that the seal piece portion 19 is strongly in close contact with the inner peripheral wall surface 2a when the vehicle body is assembled. In this relationship, in the free state indicated by the broken line, the vehicle outer side piece portion 17 protrudes greatly toward the outer peripheral side as compared with the vehicle inner side piece portion 18. Therefore, in the state assembled to the vehicle body, as shown by the solid line in the figure, the length of the vehicle outer side piece portion 17 is excessive and the vehicle inner side piece portion 18 is in a state of extending substantially linearly, while the vehicle outer side piece portion 17 is. May be excessively rounded upward and cause problems as listed below.
[0032]
{Circle around (1)} The reaction force at the time of assembling becomes excessively high, so that the assembling workability may be deteriorated or the wind glass 1 may be lifted before the adhesive is hardened.
[0033]
(2) Since the vehicle outer side piece 17 protrudes to the vehicle outer side, the water channel 31 formed between the molding body 11 and the inner peripheral wall surface 2a becomes substantially narrow, leading to a decrease in drainage. I will.
[0034]
(3) When the vehicle outer piece 17 is rounded, a V groove 32 having a substantially V-shaped cross section is formed between the vehicle outer piece 17 and the inner peripheral wall surface 2a, and an unpleasant wind noise is generated. There is a fear.
[0035]
In contrast to such a comparative example, according to the wind molding according to the second embodiment provided with the thin-walled portion 28, as described above, the folding position 29 is closer to the vehicle outer side piece portion 17 when assembled to the vehicle body. The thin-walled portion 28 is elastically deformed so as to be shifted to the position 29 ′, whereby the vehicle outer side piece portion 17 is substantially shortened and the seal piece portion 19 is substantially lengthened. Accordingly, the vehicle outer side piece 17 in the state after assembly is held in an appropriate shape without being excessively rounded as in the comparative example, and thus there is no possibility of causing the above problems (1) to (3). . That is, while forming the vehicle outer side piece portion 17 sufficiently long, it is possible to prevent the vehicle outer side piece portion 17 from being excessively rounded in the assembled state, and without damaging the assembly workability. Wind Mall can be set to the desired shape.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a cross-sectional shape of a wind molding according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a cross-sectional shape of the window molding when the vehicle is traveling at high speed.
FIG. 3 is a cross-sectional view of a main part showing another example of the shape of the wind molding.
FIG. 4 is a cross-sectional view of an essential part showing another example of the shape of the wind molding.
FIG. 5 is a perspective view showing the vicinity of a windshield as a windshield of a vehicle.
FIG. 6 is a cross-sectional view of a wind molding according to a second embodiment of the present invention in a free state.
FIG. 7 is a cross-sectional view in the process of assembling the wind molding according to the second embodiment.
FIG. 8 is a cross-sectional view after the wind molding according to the second embodiment is assembled.
FIG. 9 is a cross-sectional view showing a main part of a wind molding according to the second embodiment.
FIG. 10 is a cross-sectional view showing a modification of the wind molding according to the second embodiment.
FIG. 11 is a cross-sectional view showing a wind molding according to a comparative example having no thin portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Window glass 2 ... Car body opening part 2a ... Inner peripheral wall surface 10 ... Wind molding 11 ... Mall main body 12 ... Hollow seal body 13 ... Outer peripheral wall part 17 ... Outer vehicle side part 18 ... Car inner side part 19 ... Sealing piece part 23 ... Root part 25 ... Corner part 26 ... Extension seal part 28 ... Thin part 29, 29 '... Bending position

Claims (6)

A molding body attached along the outer peripheral edge of the windshield of the vehicle, and a hollow seal body projecting in a hollow shape from the outer peripheral wall of the molding body to the outer periphery,
The hollow seal body protrudes from the outer peripheral wall portion so as to connect the pair of the outer side piece portion and the inner side piece portion, and the protruding end portion of the outer side piece portion and the protruding end portion of the inner side piece portion. has a sealing piece to connect to the end portion,
And the vehicle outer piece portion and the interior side piece portion Ri substantially parallel der each other,
In the natural length state, the seal piece portion is an inner peripheral wall surface of the vehicle body opening so that a corner portion having a substantially V-shaped cross section with the vehicle outer side piece portion projects to the outer peripheral side of the window glass. Is inclined with respect to
In the assembled state, the hollow seal body is elastically deformed, the seal piece portion is in surface contact with the inner peripheral wall surface of the vehicle body opening, and the seal piece portion is substantially parallel to a part of the outer peripheral wall portion of the molding body. The hollow space in the hollow seal body defined by the vehicle outer piece, the vehicle inner piece, the seal piece, and a part of the outer peripheral wall of the molding body has a substantially parallelogram shape, and A wind molding characterized in that a drip space having a substantially V-shaped cross section is formed between a vehicle outer side piece and an outer peripheral wall . The window molding according to claim 1, wherein the vehicle inner piece and the seal piece are thinner than the vehicle outer piece. Among the vehicle inner side parts, a root part connected to the outer peripheral wall part is formed of the same rubber or resin material as the molding body, and a hollow seal body other than the root part is formed from the molding body and the root part. The window molding according to claim 1 or 2, wherein the window molding is made of a soft rubber or resin material. The wind molding according to any one of claims 1 to 3, further comprising an extension seal portion that is continuously extended from the seal piece portion and is in surface contact with the inner peripheral wall surface. In the corner portion having a substantially V-shaped cross section where the seal piece portion and the vehicle outer piece portion are connected, a thin wall portion formed so as to cut out the inner portion is formed from the seal piece portion to the vehicle outer piece portion. The wind molding according to any one of claims 1 to 4, wherein The thin-walled portion can be elastically deformed so that a portion along the vehicle outer side piece portion is substantially shortened and a portion along the seal piece portion is substantially long when assembled to the vehicle body. The wind molding as claimed in claim 5, characterized in that:

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