JP2000203273A - Door weatherstrip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door weatherstrip capable of mounting a wind noise preventing member without being affected by variance in mounting on a vehicle, and improving the appearance of a sub-seal part or a main-seal part when a door is closed. SOLUTION: This door weatherstrip 15 is constituted of a main body, a main-seal part 18 brought into close contact with the seal side 17a of a front pillar 17 when a front door 11 is closed, and a sub-seal part 19 brought into close contact with the seal side 17b when the front door 11 is closed. Wind restricting blocks 22, 23 are formed at a groove part 21, which is at a position above the belt line L of a vehicle and between the main-seal part 18 and the sub-seal part 19, in an integrated and facing manner so that a prescribed space may be formed when the door is open. When the door is closed, both the blocks 22, 23 are brought into contact with each other, so that the air flow which entered the groove 21 is blocked by both the blocks.

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 a front door of an automobile, and more particularly, to a double seal type weather strip having a main seal portion and a sub seal portion.

[0002]

2. Description of the Related Art Conventionally, a door weather strip for sealing between a front door and a vehicle body is attached to a periphery of a front door of an automobile. Such a weather strip is configured to have a so-called double sealing function in order to improve the sealing property between the weather strip and the vehicle body.

FIG. 8 is a perspective view showing a structure near the front end of the belt line L in a state where the front door 11 is closed at the door opening. The front door 11 includes a sash 13 that guides the door glass 12 up and down and a door body 14, and a weather strip 15 is mounted on outer peripheral edges of the sash 13 and the door body 14. The weather strip 15 is provided on the main body 16 mounted on the peripheral edge of the front door 11 and on the vehicle body opening edge when the front door is closed, that is, on the sealing surface 17 b of the front pillar 17 when the front door is closed. It is formed of a hollow main seal portion 18 that is in close contact, and a lip-shaped sub-seal portion 19 that protrudes from the main body 16 and is in close contact with the seal surface 17a of the front pillar 17 when the front door 11 is closed. (See JP-A-58-118416.) In this way, the seal between the opening edge of the vehicle body and the front door 11 is more reliably sealed by the two seal members of the main seal portion 18 and the sub seal portion 19. In addition,
In a general door weather strip having a double sealing function, a hollow main seal portion is disposed on the vehicle interior side, and the front end thereof has a front pillar sealing surface (17b) on the vehicle exterior side.
A lip-shaped sub-seal portion that is in close contact with is disposed.

[0004] In the door weather strip 15 having the double sealing function as described above, a groove 21 is formed between a main seal portion 18 and a sub seal portion 19. Therefore, for example, when the automobile travels at high speed, although not shown in FIG. 8, air enters the groove 21 from between the engine hood and the fender or between the fender and the front pillar 17. This air enters the groove 21 from below in FIG. 8 and flows upward in the groove 21. At this time, the lip-shaped sub-seal portion 19 sometimes flutters due to the airflow flowing through the groove portion 21. Then, there is a possibility that abnormal noise is generated due to the fluttering.

[0005] In order to solve the above problem, two measures have conventionally been taken. As a first measure, Japanese Patent Laid-Open No. 9-2
In the weather strip disclosed in Japanese Patent Publication No. 20932, a passing sound preventing wall is provided in a groove portion 21 between a hollow main seal portion 18 disposed on the vehicle interior side and a lip-shaped sub-seal portion 19 disposed on the vehicle exterior side. 41 are provided.

As a second countermeasure, Japanese Utility Model Laid-Open No. 5-28727
As shown by a two-dot chain line in FIG.
A configuration provided with 2, 43 is also proposed.

[0007]

In the above-mentioned first measure,
Since the sound prevention wall 41 of the weather strip is formed over the entire width of the groove 21, the hollow main seal portion 18 abuts against the opening edge of the vehicle body and elastically deforms when the front door 11 is closed. When sealing, the main seal portion 18
Presses the sound prevention wall 41 and further swells the sub-seal portion 19 partially outward. Therefore, there is a problem that the appearance of the sub-seal portion 19 disposed outside the vehicle compartment is impaired and the appearance is poor.

In the second measure, the wind suppression fins 42, 43
Since the vibration itself and the openings are formed between the fins 42 and 43 and the seal portions 19 and 18, the wind flows from the openings to effectively suppress the generation of abnormal noise due to the wind. There was a problem that it could not be realized.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art, to suppress the flow of wind in a groove formed between a main seal portion and a sub seal portion, and to reduce generation of abnormal noise. It is an object of the present invention to provide a door weather strip which can prevent the main seal portion or the sub-seal portion from swelling locally and improve the appearance.

Another object of the present invention is to provide, in addition to the above objects,
An object of the present invention is to provide a door weatherstrip in which a wind suppression member can be provided without being affected by variations in assembly to a front door.

[0011]

To achieve the above object, according to the first aspect of the present invention, a front door (1) is provided.
1) A main body (16) attached to a peripheral portion, and the main body (1)
6) and is formed integrally with the main seal portion (1) which is in close contact with the vehicle body opening edge (17a) when the front door (11) is closed.
8) and a sub-sealing portion (19) integrally formed with the main body (16) and also in close contact with the vehicle body opening edge (17b) when the front door (11) is closed. A pair of wind suppression members (22, 23) positioned in a groove (21) between the main seal portion (18) and the sub seal portion (19) above the belt line (L) of the vehicle. Are integrally formed so that the wind suppression members (22, 23) are separated from each other at a predetermined interval when the front door (11) is opened, and come into contact with each other when the front door (11) is closed.

According to the second aspect of the present invention, in the first aspect, the wind suppressing members (22, 23) are provided with a pair of wind suppressing blocks (22, 23) facing each other at a predetermined interval when the front door (11) is opened. ), The opposing surfaces of both wind suppression blocks are inclined surfaces (22a, 23a) inclined with respect to the longitudinal direction of the groove (21).

According to a third aspect of the present invention, in the first aspect, the pair of wind suppression members (22, 23) are composed of a wind suppression block (22) and a wind suppression fin (23), and The fin (23) is located below the wind suppression block (22), and is configured to be elastically deformed by the air flowing in the groove (21) and to contact the lower end surface of the wind suppression block (22).

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in the side view of the automobile in FIG. 4, the front door 11 mounted in correspondence with the front door opening of the vehicle body includes a sash 13 for guiding a door glass 12 to be able to move up and down, and a door main body 14. 13 and an outer peripheral edge of the door main body 14, a closed annular door weather strip 15 as shown by a chain line.
Is installed.

The perspective view of FIG. 1 is a partial perspective view when the door is closed, showing a state indicated by a circle in FIG. 4, that is, an assembled state of the door weather strip 15 near the front end of the belt line L. . The door weather strip 15 is attached to the periphery of the front door 11, that is, the periphery of the sash 13 and the door body 14 surrounding the door glass 12, by clips (not shown) and / or double-sided adhesive tape. The door weather strip 15 includes a main body 16 mounted on the peripheral edge of the front door 11 and a seal of a front pillar 17 protruding from the vehicle interior side of the main body 16 and serving as an opening edge of the vehicle body when the front door 11 is closed. A hollow main seal portion 18 that seals closely to the surface 17a; a projecting portion protruding forward of the main body 16 in the vehicle, and a front end portion that closely contacts a seal surface 17b of the front pillar 17 when the front door 11 is closed. Lip-shaped sub-seal part 1 for sealing
9. The front pillar 1
A decorative welt 20 is attached to the flange portion 17c inside the vehicle 7.

As shown in FIGS. 1 and 2, the main sealing portion 18 and the sub-sealing portion 19 of the door weather strip 15 are provided.
A groove 21 is formed between the two. Slightly above the belt line L of the groove 21, a wind suppression block 22 as a pair of wind suppression members facing the same height position,
23 are integrally formed so as to protrude. The reason why the air flow is higher than the belt line L is that the wind flowing from between the engine hood and the fender enters the groove 21 so that the wind is sufficiently exerted because the position of the belt line L is sufficient. is there.

The opposing surfaces of the pair of wind suppression blocks 22 and 23 are inclined surfaces 22a and 23a. As shown in FIG. 3, the inclined surfaces 22a and 23a are inclined in the longitudinal direction of the groove 21.

Next, the operation of the door weather strip in this embodiment will be described. FIG. 2 shows a sectional state of the door weather strip 15 when the front door is opened. In this state, the groove 21 between the main seal portion 18 and the sub seal portion 19 is held in a predetermined shape by the elastic restoring force of the seal portion itself. When the front door 11 is closed in this state, the main seal portion 18 and the sub seal portion 19 are elastically deformed as shown in FIG.
The main seal portion 18 is in close contact with the seal surface 17a of the front pillar 17, and the sub-seal portion 19 is in close contact with the seal surface 17b. At this time, the interval between the groove portions 21 between the main seal portion 18 and the sub seal portion 19 is narrowed, and the pair of wind suppression blocks 22 and 23 facing each other at a predetermined interval come into close contact with each other. Therefore, when the front door is closed, the pair of wind suppression blocks 22 and 23 form the groove 21.
Is closed. Therefore, for example, when the vehicle travels at high speed, although not shown in FIG. 1, an air flow (wind) that attempts to enter the groove 21 from between the engine hood and the fender or between the fender and the front pillar 17 is provided. ) Is suppressed.

Next, the effects of the weather strip configured as described above will be listed below. (1) In the above-described embodiment, the pair of wind suppression blocks 22 and 23 are integrated with each other so as to be located in the groove 21 with respect to the main seal portion 18 and the sub seal portion 19, and are opposed to each other at a predetermined interval. Formed. Therefore, when the front door is closed, the main seal portion 18 and the sub-seal portion 19 are elastically deformed, so that the two-wind suppressing blocks 22 and 2 are prevented.
3 are in contact with each other and block the passage of air through the groove 21. Therefore, generation of abnormal noise can be prevented.

When the door is closed, the two blocks 22,
23 contacts with an appropriate pressure, so that it is possible to prevent the sub-seal portion 19 from being locally pushed outward and improve the appearance.

(2) In the above embodiment, the groove 21
When the front door 11 facing the front door 11 is opened, a pair of wind suppression blocks 22 and 23 facing each other are provided at a predetermined interval, so that a gap is formed between the pair of wind suppression blocks 22 and 23 when the front door is opened. You. For this reason, the rainwater accumulated above the blocks 22 and 23 flows down and does not remain in the groove 21.

(3) In the above embodiment, parallel inclined surfaces 22a and 23a which are inclined with respect to the opposing surfaces of the opposing blocks 22 and 23 in the longitudinal direction of the groove 21 are formed. For this reason, even if the wind suppression blocks 22 and 23 are displaced in the longitudinal direction of the groove 21 due to the variation in the assembling of the door weather strip 15 with respect to the peripheral edge of the front door 11, both blocks 22 and 23 are closed when the front door is closed. 23 can be appropriately brought into contact with each other. Assuming that the inclined surfaces 22a and 23a are parallel surfaces that are not inclined, when the two seal portions 18 and 19 are pulled in opposite directions along their longitudinal directions, the parallel surfaces become inclined surfaces. Since the contact is made locally, the contact state is likely to change.

Next, another embodiment of the present invention will be described with reference to FIGS. -Another embodiment shown in FIG.
2 is configured in a block shape, and the other wind suppression member is
The wind suppressing fins 23 are used. The wind suppression fins 23 are slightly separated from the wind suppression block 22 in the longitudinal direction of the groove 21. When the wind blows upward from the groove 21 in the closed state of the front door, the wind suppression fins 23 come into contact with the lower end surface of the wind suppression block 22 to be sealed as shown by the chain line in FIG. The passage is blocked. Thereby, the generation of abnormal noise can be prevented, and the distance G between the wind suppression fin 23 and the wind suppression block 22 is set to a predetermined interval even when the weather strip is manufactured unevenly or the assembly balance is lost. Accordingly, even when the main seal portion 18 and the sub-seal portion 19 are assembled while being displaced in the longitudinal direction, the assembling error is absorbed and the correspondence between the wind suppression block 22 and the wind suppression fin 23 is properly maintained. be able to.

In another embodiment shown in FIG. 6, a pair of wind suppression blocks 22 and 23 are formed such that a slight gap 31 is formed on the bottom side of the groove 21 when the door is closed. As a result, even when the front door is closed, the pair of wind suppression blocks 22 and 23 are in contact with each other so
1 is formed, so that no water remains in the closed state of the front door.

In another embodiment shown in FIG. 7, a tapered concave portion 22b is provided between a pair of blocks 22 and 22, and a tapered convex portion 23b opposed to the concave portion 22b is formed in a block 23. are doing.

The wind suppression blocks 22 and 23 of the present invention may be applied to the door weather strip 15 shown in FIG. 8 in which the main seal portion 18 is located outside the vehicle. In this case, the appearance of the main seal portion 18 can be improved.

In this embodiment, both seal portions 1
Even if the assembly 8 and 19 are assembled in the opposite direction (see the arrow) along the longitudinal direction, the assembly can be absorbed. Further, technical ideas other than the claims grasped from the embodiment will be described below together with their effects.

[1] In the first aspect, a tapered recess 22b is provided in the block 22 as one wind suppression member, and the tapered recess 22b is opposed to the block 22b in the block 23 as the other wind suppression member. Door weather strip having a convex portion 23b.

[0029]

As described above in detail, according to the first to third aspects of the present invention, the flow of wind in the groove formed between the main seal portion and the sub-seal portion is suppressed, thereby generating abnormal noise. Can be prevented, and the appearance can be improved by eliminating local swelling of the main seal portion or the sub seal portion.

According to the second aspect of the present invention, the wind suppression member can be provided without being affected by variations in assembly to the front door.

[Brief description of the drawings]

FIG. 1 is a partial perspective view for explaining a door weather strip embodying the present invention.

FIG. 2 is a partial cross-sectional view showing the door weather strip when the door is opened.

FIG. 3 is a partial cross-sectional view showing the door weather strip when the door is closed.

FIG. 4 is a side view of an automobile.

FIG. 5 is a sectional view of a main part of a door weather strip according to another embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a door weather strip according to another embodiment.

FIG. 7 is a sectional view of a main part of a door weather strip according to another embodiment.

FIG. 8 is a partial perspective view of a door weather strip in a conventional example.

[Explanation of symbols]

11 ... front door, 15 ... door weather strip, 1
6: Main body, 18: Main seal part, 19: Sub seal part, 22, 23 ... Wind suppression block as wind suppression member.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Keiichi Fukushima 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F-term (reference) 3D024 AA06 AB04 AB18 AB24 AB25 AB31 AC05

Claims (3)

[Claims] A body (16) mounted on a peripheral portion of a front door (11); and a body (16) formed integrally with the body (16).
1) A main seal portion (18) that is in close contact with the vehicle body opening edge (17a) when closed, and is formed integrally with the main body (16), and is also formed on the vehicle body opening edge (17b) when the front door (11) is closed. A door weatherstrip provided with a sub-seal portion (19) which is in close contact with the main seal portion (18) and a sub-seal portion (19) located above a belt line (L) of a vehicle. A pair of wind suppression members (2
2, 23) are integrally formed, and both wind suppression members (22, 2) are formed.
3) A door weather strip wherein the front door (11) is spaced apart from the front door (11) at a predetermined interval when the front door (11) is opened, and is in contact with each other when the front door (11) is closed. 2. The wind control member according to claim 1, wherein
A pair of wind suppression blocks (22, 23) facing each other at a predetermined interval when the front door (11) is opened.
A door weather strip in which the opposing surfaces of both wind suppression blocks are inclined surfaces (22a, 23a) inclined with respect to the longitudinal direction of the groove (21). 3. The wind-suppressing fin (23) according to claim 1, wherein the pair of wind-suppressing members (22, 23) comprises a wind-suppressing block (22) and a wind-suppressing fin (23).
Is located below the wind suppression block (22) and has a groove (2).
1) A door weatherstrip configured to be elastically deformed by air flowing through the inside and to contact the lower end surface of the wind suppression block (22).