JP2000351326A - Weather strip for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weather strip for vehicle having a simple and inexpensive configuration, but capable of leading water entering a rail for holding the weather strip to the outside of a compartment surely and reducing assembly man-hours. SOLUTION: A rib for draining water 13 which extends obliquely and downward from an indoor side end part 14 to an outdoor side end part 15 of a bottom face S from an indoor side toward an outdoor side and is arranged in a condition in which both ends P, R of a wall face 13c on an upper side coincide with the indoor side end part 14 and the outdoor side end part 15 of the bottom face S is provided on the bottom face S of a base part fitted in a rail. Moreover, this rib for draining water 13 is integrally formed on the bottom face S of the base part of a weather strip for vehicle 10.

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 vehicle, which seals between a peripheral portion of a door and a peripheral portion of a door opening formed in a body.

[0002]

2. Description of the Related Art In a vehicle such as an automobile, a door (side door or the like) is attached to a door opening provided in a body so as to be openable and closable. A base portion of the weatherstrip is attached to a rail provided on one of the peripheral portion of the door and the peripheral portion of the door opening of the body, and the peripheral portion of the door and the peripheral portion of the door opening are attached by the weatherstrip. Is configured to be sealed.

FIGS. 9 and 10 show an arrangement structure of a conventional weatherstrip 1 for a vehicle (hereinafter simply referred to as a weatherstrip 1). The weatherstrip 1 includes a door 2 for a vehicle. Is mounted on the peripheral portion on the indoor side of the vehicle. That is, the door 2 is formed by joining the door outer panel 2a and the door inner panel 2b into a closed cross-sectional shape.
The base portion (base portion) 1a of the weather strip 1 is held in a state fitted in the rail 3 fixed to the rail 3, and the hollow elastic portion 1 of the weather strip 1 when the door 2 is closed.
When b contacts the side body outer panel 4a constituting the outer surface of the side body 4, the sealing function between the door 2 and the side body 4 is achieved.
When the door 2 is closed, the tongue piece (projection piece) 1c integrally formed with the hollow elastic portion 1b of the weather strip 1 is configured to be interposed between the side body outer panel 4a and the door outer panel 2a. ing.

[0004]

As shown in FIGS. 11 and 12, a weather strip 1 disposed on a peripheral portion of a door 2 has extruded portions 5a and 5a obtained by extrusion.
5a 'and a molded part 5b obtained by molding using a mold
The hollow portion 1d (see FIGS. 9 and 10) is formed in the molded portion 5b disposed at the corner of the door 2.
It is necessary to provide a slit 1e for extracting the core from the hollow portion 1d due to the structure of the molding die for forming the core. Therefore, in practice, a slit 1e communicating with the hollow portion 1d is provided in the base portion 1a of the weather strip 1. Therefore, the base portion 1a of the weather strip 1 is fitted into the rail 3 and the weather strip 1 is
Under the condition that the hollow portion 1d is attached to the peripheral portion of the door 2, the hollow portion 1d in the hollow elastic portion 1b does not have a completely hollow closed cross section as shown in FIG. The cross section has lower rigidity than the hollow portion 1d of 5a, 5a '.

[0005] Therefore, the following inconvenience may occur. That is, when the door 2 is closed, the weather strip 1 is elastically deformed as shown in FIG. 10, but since the base portion 1a is not stable during this elastic deformation, the space between the door inner panel 2b and the weather strip 1 and the rail 3 And the sealing function between the weather strip 1 and the
The outdoor water 6 (see FIG. 12) may enter the region H indicated by cross hatching in FIG. As described above, when the water 6 invades the region H, the invading water 6
12 flows inside the rail 3 within the range of the rail attachment range L shown in FIG. 12, but the water 6 flows toward the indoor side as shown by an arrow α in FIG. May flow into the room.

Therefore, as a countermeasure for preventing such a problem of the conventional weatherstrip 1, as shown in FIGS. 13 and 14, an epto sealer (EPDM rubber foam) 7 is provided on the bottom surface S of the base 1 a of the weatherstrip 1. Paste in a state where it is arranged diagonally from the inside to the outside, and rail 3
There is a method in which the water 6 that has entered inside is guided to the outside of the room along the ept sealer 7 so that the water 6 does not flow from the terminal of the rail 3 to the inside of the room.

However, the conventional countermeasures using the ept sealer 7 have the following problems.
That is, as shown in FIG. 15, the corner 7a at the upper end (indoor side) of the ept sealer 7 is a branch point, and the flow of the water 6 is divided into two directions, the indoor side and the outdoor side, and is divided into the indoor side. Water 6 'may enter the room.
In addition, since the epto-sealer 7 has the property of absorbing water, it is effective for a small amount of water. However, if the large amount of water is contained, the overflowed water 6 ″ may not enter the room. There is. Further, since the operation of attaching the ept sealer 7 to the bottom surface S of the base portion 1a of the weather strip 1 is performed manually after the forming process of the mold forming portion 5b, the number of assembly steps is increased, and the work for attaching to the bottom surface S is also increased. Variations are likely to occur in the application position of the epto-sealer 7 and the quality becomes unstable, which may cause a situation in which the epto-sealer 7 cannot fully exhibit the function of guiding the water 6 to the outdoor side.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has as its object a simple and inexpensive structure, while ensuring that water that has entered the rails for holding a weatherstrip is reliably prevented. It is an object of the present invention to provide a weatherstrip for a vehicle that can be guided to the outside of the vehicle and that requires a small number of assembling steps.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a method in which a vehicle is mounted on a rail provided on one of a peripheral portion of a door and a peripheral portion of a door opening of a body. In a weather strip for a vehicle that seals between both edges, a bottom surface of a base portion fitted to the rail extends obliquely downward from an indoor end to an outdoor end from the indoor side to the outdoor side from the indoor side to the outdoor side, In addition, drain ribs are provided so that both ends of the upper wall face are aligned with the indoor end and the outdoor end of the bottom surface. In the present invention, the drainage rib is formed integrally with the bottom surface of the base portion. Further, in the present invention, the shape of the tip of the drainage rib to be pressed against the inner surface of the rail is circular in cross section.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. In addition, FIG.
8, the same parts as those in FIGS. 9 to 15 are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 shows an automobile 9 having a door (side door) 2, and a vehicle weatherstrip 10 (hereinafter simply referred to as a weatherstrip 10) is provided on the periphery of the door 2 of the automobile 9. ) Are attached around the entire circumference as shown in FIG. As shown in FIG. 3, the upper portion of the above-mentioned weather strip 10 is composed of extruded portions 11a and 11a 'obtained by extrusion and a molded portion 11b obtained by molding using a mold. The base portions of the extruded portions 11a, 11a 'and the molded portion 11b, that is, the base portion 10a of the weather strip 10, are fitted to the rail 3 fixed to the door inner panel 2b in the rail mounting range L shown in FIG. It is held in the state where it was. As a result, the molded portions 11b are respectively curved and arranged along the upper corners of the peripheral portion of the door 2, and the extruded portions 1b are formed.
1a is arranged substantially straight along the upper surface of the peripheral portion of the door 2 between these upper corners, and the extruded portion 11a 'is arranged so as to be gently bent along the rear end portion of the door 2. (FIGS. 2 and 5
reference).

As shown in FIGS. 3 and 4, a base portion 10 of a weather strip 10 fitted to the rail 3 is provided.
In a, a drainage rib 13 is integrally formed on a bottom surface S thereof. More specifically, the drainage rib 13 integrally formed with the bottom surface S is provided with a bottom surface S extending from the indoor side to the outdoor side.
, Extends obliquely downward from the indoor end 14 to the outdoor end 15, and both ends P and R of the upper wall surface 13 c coincide with the indoor end 14 and the outdoor end 15 of the bottom surface S. It is arranged in the state where it was done. Then, both end portions in the longitudinal direction of the drainage rib 13, that is, the upper and lower side end portions 1
The entire surfaces of 3a and 13b are arranged so as to match the indoor end 14 and the outdoor end 15 of the bottom surface S, respectively. Thus, as shown in FIGS. 3 and 7, the upper wall surface 13 c of the drainage rib 13 is inclined at the bottom surface S of the base portion 10 a of the weatherstrip 10 so as to intersect the width direction of the bottom surface S. The wall 1 extends in the width direction and extends across the entire area in the width direction.
The left and right ends of 3c are matched with the indoor end 14 and the outdoor end 15 of the bottom surface S, respectively.

The part where the above-mentioned drainage rib 13 is integrally formed is the bottom surface S of the base part 10a of the molded part 11b which constitutes a part of the weather strip 10, and the longitudinal direction of the molded part 11b. One end of the direction (see FIG. 3). Therefore, the base portion 10a of the weather strip 10
Under the condition that the water is inserted into the rail 3,
Is disposed in the rail 3 at a position near the end of the rail 3 and assembled to the rail 3 in a state where the tip 13d of the drainage rib 13 is crimped to the inner surface (bottom surface) 3a of the rail 3 as shown in FIG. It can be attached.

The shape of the tip 13d of the drainage rib 13 to be pressed against the inner surface 3a of the rail 3 may be rectangular in cross section as shown in FIG. 4, and FIGS. 8 (A) and 8 (B). As shown in FIG.

When the weather strip 10 having such a configuration is used, the drainage rib 13 as described above is integrally formed on the bottom surface S of the base portion 10a of the weather strip 10 instead of the epto sealer 7. Therefore, all of the water 6 that has entered the rail 3 is shown in FIGS.
At the wall 13c of the drainage rib 13 as shown by the arrow β.
, And it is surely guided to the outdoor side. That is, the drainage rib 13 provided on the bottom surface S of the base portion 10a of the weather strip 10 is
Since the entire surface of a is arranged so as to match the indoor side end 14 of the bottom surface S, there is no corner 7a (see FIG. 15) which would occur when using the ept sealer 7 as in the related art. Moreover, since the wall surface 13c of the drainage rib 13 is inclined with respect to the width direction of the bottom surface S and is disposed so as to completely cross the bottom surface S over the entire region in the inclination direction, the water that has entered the rail 3 All 6 are drainage ribs 13
Received by the upper wall surface 13c of the
The water 6 is guided to the outdoor side along c. Since the drain ribs 13 are formed integrally with the weather strip 10, the material of the drain ribs 13 is the same as that of the weather strip 10, so that the water 6 permeates the drain ribs 13. It does not cause any trouble.

The water 6 once guided to the outside of the room in this way
As shown in FIG. 5 and FIG. 6, the door passes through a drainage channel (a passage shown by cross hatching in FIG. 6) 16 formed between the extruded portion 11a 'of the weather strip 10 and the door inner panel 2b. 2 is discharged to the outside at the lower part. Therefore, all of the water 6 that has entered the rail 3 is reliably discharged outside the room without entering the room.

Therefore, the weather strip 1 of the present embodiment is
According to No. 0, the rail 3
Although it has a simple and inexpensive structure in which only the drainage rib 13 for reliably discharging the water that has entered the inside to the outside is prevented, the water that has entered the rail 3 is prevented from entering the room. be able to. In addition, the above-described drainage rib 1
3 is provided on the bottom surface S of the base portion 10a of the weatherstrip 10 by integral molding, so that the work of assembling the drainage rib 13 to the weatherstrip 10 is not required, and the number of assembling steps is reduced. be able to.

Further, when the tip 13d of the drainage rib 13 is formed to have a circular cross section as shown in FIG.
Even if the drainage rib 13 is inclined as shown in FIG. 8B due to a dimensional error or the like when assembling into the rail 3, the contact area of the leading end 13 d of the drainage rib 13 to the inner surface 3 a of the rail 3. Does not change, a stable sealing function can be obtained.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.
Various modifications and changes are possible based on the technical concept of the present invention. For example, in the above-described embodiment, the drainage rib 13 is used.
The drainage rib 13 is provided as a separate part, and the base portion 1 of the weather strip 10 is provided.
It may be attached to the bottom surface S of Oa by means such as sticking. Further, in the above-described embodiment, the case where the base portion 10a of the weather strip 10 is attached to the rail 3 attached to the peripheral portion of the door 2 has been described, but the rail attached to the peripheral portion of the door opening of the body ( It is needless to say that the same configuration as described above can be adopted when the base portion 10a of the weather strip 10 is attached to the weather strip 10 (not shown).

[0020]

According to the first aspect of the present invention, the base extends from the indoor side to the outdoor side and extends obliquely downward from the indoor end to the outdoor end of the bottom surface from the indoor side to the outdoor side. And, since both ends of the upper wall surface are provided with drainage ribs arranged in a state of being matched with the indoor side end and the outdoor end of the bottom surface, from the corners of the epto sealer, etc. Since there is no branch point of water, even if water enters the rail, the water can be reliably guided from the indoor side to the outdoor side along the drainage ribs, and therefore simple and inexpensive. It is possible to prevent intrusion of water into the room even though the vehicle weather strip is simple.

According to the second aspect of the present invention, the drainage rib is formed integrally with the bottom surface of the base.
Eliminating the work of assembling the drainage ribs to the base part eliminates the need for assembling man-hours, and always arranges the drainage ribs to the base part at predetermined positions without causing variations. Therefore, it is possible to provide a weatherstrip for a vehicle having a stable and high-quality drainage function. Further, the cross-sectional shape of the drainage rib can be freely set according to the shape of the rail, and there is an advantage that the degree of freedom in designing the weatherstrip for a vehicle is large.

According to the third aspect of the present invention, since the tip of the drainage rib to be pressed against the inner surface of the rail has a circular cross section, the base is fitted into the rail. In this case, even if the drainage rib is inclined, a part of the tip of the circular cross-section of the drainage rib always comes into contact with the inner surface of the rail and is in a crimped state. Function) can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile provided with a weather strip for a vehicle according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where an automobile door (side door) is opened.

FIG. 3 is a bottom view of an upper portion of a weather strip for a vehicle attached to a peripheral portion of a door.

FIG. 4 is an enlarged sectional view taken along line XX in FIG. 3;

FIG. 5 is a side view of a door for explaining a flow path of water that has entered a rail.

FIG. 6 is an enlarged sectional view taken along line YY in FIG. 5;

FIG. 7 is an enlarged view of a portion indicated by an arrow M in FIG. 3, and is an explanatory diagram showing an operation of guiding water to the outside of the room by a drainage rib.

8A and 8B show a second embodiment of the cross-sectional shape of the drainage rib, and FIG. 8A is a cross-sectional view showing a fitted state when the weather strip is correctly fitted to the rail;
(B) is a cross-sectional view showing a fitted state when the drainage rib is inclined and fitted due to a dimensional error or the like.

FIG. 9 is a cross-sectional view showing an arrangement state of a conventional weather strip for a vehicle attached to a peripheral portion of a door.

FIG. 10 is a cross-sectional view showing a state in which water has entered a rail on which a base portion of the vehicle weather strip is fitted.

FIG. 11 is a bottom view of an upper portion of a conventional weather strip for a vehicle.

FIG. 12 is a side view of a door showing a flow path of water when a conventional weatherstrip for a vehicle is used.

FIG. 13 is a bottom view of an upper portion of a weather strip for a vehicle in which an ept sealer is obliquely attached to a back surface of a base portion.

FIG. 14 is an enlarged sectional view taken along the line ZZ in FIG.

FIG. 15 is an enlarged view of a portion indicated by an arrow N in FIG. 13, and is an explanatory diagram showing a flow path of water when an ept sealer is provided.

[Explanation of symbols]

 2 Door 3 Rail 3a Inner surface (bottom surface) 6 Water 9 Car 10 Weather strip 10a Base 11a, 11a 'Extrusion molding 11b Mold molding 13 Drainage ribs 13a, 13b Side end 13c Wall 13d Tip 13e Root 14e Inside end 15 Outside end 16 Drainage channel S Bottom surface P, R Both ends

Claims (3)

[Claims] 1. A weather strip for a vehicle, which is mounted on a rail provided on one of a peripheral portion of a door and a peripheral portion of a door opening of a body and seals between the two peripheral portions, is fitted into the rail. On the bottom of the base
From the indoor side to the outdoor side, the bottom surface extends diagonally downward from the indoor side end to the outdoor side end, and both ends of the upper wall are matched with the indoor side end and the outdoor end of the bottom surface. A weatherstrip for a vehicle, comprising a drainage rib arranged in an inclined state. 2. The weatherstrip for a vehicle according to claim 1, wherein said drainage rib is formed integrally with a bottom surface of said base portion. 3. The weatherstrip for a vehicle according to claim 1, wherein a shape of a tip end of the drainage rib to be pressed against the inner surface of the rail has a circular cross section.