JPH11208278A - Weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weather strip that can absorb significant variation in fitting of an interior trim and that does not catch in an interior lip. SOLUTION: This weather strip includes an anchor portion U mounted on a flange portion 2 of a vehicle body and a hollow sealing portion S which performs sealing function when elastically deformed. At an interior side of the anchor portion U, an interior lip 13 is arranged in an extending condition which elastically contacts an interior trim T for the purpose of covering a clearance between them. In this case, the interior lip 13 is configured with a main lip portion 13a which is arranged in a diagonally extending condition downward to the interior side of the anchor portion U, and an auxiliary lip portion 13b which is arranged at an edge of the main lip 13a in a diagonally extending condition downward facing the anchor portion U.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip having a structure in which a vehicle interior side lip is provided at a flange portion on a vehicle body side to cover a gap formed between the vehicle interior trim and a vehicle interior trim. It is about.

[0002]

2. Description of the Related Art Generally, a weather strip comprises a substantially U-shaped anchor attached to a flange on the body side of a vehicle, and a hollow seal which elastically deforms to perform a sealing function. The hollow seal portion is elastically contacted with a peripheral portion of doors that are attached to a periphery of the opening of the vehicle through the opening and closes the opening to seal the periphery of the opening.

For example, as shown in FIG. 1, as one of conventional weather strips W ′ attached to a flange at a peripheral edge of a rear opening 1 of a two-box car 10 or the like belonging to a small car, as shown in FIG. Configuration. The weather strip W ′ includes an anchor portion U having a substantially U-shaped cross section attached to the flange portion 2 on the peripheral edge of the rear opening 1 and a hollow seal portion S formed integrally with the anchor portion U. On the outdoor side of the section U, two types of outdoor side lips 11 and 12 which resiliently contact the flange portion 2 and perform a sealing function are provided extending obliquely downward and opposite to each other. A room-side lip 13 ′ elastically contacts the room trim T, which is a room decoration member, and extends obliquely downward to cover a gap formed therebetween.

[0004] The hollow seal portion S and the lips 11, 12, 13 'on the outdoor side and the indoor side are all formed of a soft elastic material such as soft rubber to facilitate elastic deformation. The anchor portion U is formed of hard rubber or the like. The hollow seal portion S is sealed when the peripheral portion of the back door 3 of the two-box car 10 elastically contacts the hollow seal portion S of the weather strip W ′ and the seal portion S is deformed. . The interior trim T has a variation in installation. If the variation is large, as shown by a solid line in FIG. 8, the interior trim T and the interior trim A gap 4 is formed between the lip 13 'and the lip 13', which significantly impairs the appearance. 8, 14 is provided on the inner peripheral surface of the anchor portion U having a substantially U-shaped cross section, and
15 shows a seal lip which is elastically held on both sides of
5 shows a reinforcing metal core embedded in the anchor portion U.

One of the causes of the gap 4 between the interior trim T and the interior lip 13 'in the weather strip W' is that the dispersion of the installation of the interior trim T is too large. This is because the inclined extension angle (θ ′) of the indoor side lip 13 ′ with respect to the anchor portion U, which is directed obliquely downward, is too large. Therefore, as shown in a weather strip W ″ shown in FIG. 9, when the inclination extension angle (θ ″) of the indoor side lip 13 ″ with respect to the anchor portion U, which is directed obliquely downward, is made smaller than the above, the building of the indoor trim T is completed. The range in which the variation in the attachments can be absorbed is increased, and the gap 4 as described above is less likely to be generated.

However, regarding the order of attaching the weather strip and the interior trim to the vehicle body, the interior trim may be attached later, and in this case, as shown in FIGS. A new problem arises in that the indoor side lip 13 "is involved between the weather strip W" and the anchor portion U. For this reason, it is necessary to pull out the trapped indoor lip 13 ″, and this operation is troublesome, and at the same time, there is a possibility that the indoor lip 13 ″ may be damaged.

If the interior lip is made a hollow lip, the above-mentioned entanglement is eliminated even when the interior trim is retrofitted. However, the insertion resistance is reduced by the hollow lip. If is pre-attached, the weatherstrip insertability into the flange portion will be poor, and the hollow lip will be exposed to the indoor side,
The tip has a “bulge”, which makes the appearance worse.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a weather strip which can absorb large variations in the installation of the interior trim and does not involve the interior lip.

[0009]

In order to solve the above-mentioned problems, the present invention employs an anchor portion attached to a flange portion on a vehicle body side, and a hollow seal portion which elastically deforms to perform a sealing function. A main lip portion extending obliquely downward on the indoor side of the anchor portion in a weather strip having an indoor side lip elastically contacting the interior trim on the indoor side of the anchor portion. The interior lip is constituted by two parts, that is, an auxiliary lip portion extending obliquely downward toward the anchor portion at the tip of the main lip portion.

The interior lip is composed of two parts, a main lip part and an auxiliary lip part, and both lip parts are continuously provided at the tip of the main lip part. The auxiliary lip is located farther from the anchor than the free end. For this reason, even when the interior trim is retrofitted, when the interior trim is inserted, the auxiliary lip is elastically deformed by the interior trim so that the intersection angle between the lips becomes small, and the amount of elastic deformation of the auxiliary lip is reduced. Is large, the main lip is also slightly elastically deformed.

As described above, when the end of the interior trim is inserted below the interior lip, the elastic deformation of the auxiliary lip portion is assisted by the insertion of the interior trim, and the space between the interior trim and the anchor portion is increased. Lip does not get caught in the room. Also, when inserting the interior trim, the auxiliary lip part is mainly deformed elastically, and if the amount of elastic deformation is large, the main lip part is also elastically deformed. it can.

If the thickness of the auxiliary lip portion is made smaller than that of the main lip portion, or if the thickness of the auxiliary lip portion is provided at the base of the auxiliary lip portion, the auxiliary lip portion is easily elastically deformed, and the vehicle lip is easily deformed. The insertion resistance of the weather strip to the flange portion on the body side is reduced, and the insertability is improved. As a result, the efficiency of the work of attaching the weatherstrip is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail by way of examples. The same portions as those described in the section of "Prior Art" are denoted by the same reference numerals, and only the characteristic portions of the present invention will be described, avoiding redundant description. 1, 2 boxcar 10 fitted with a weather strip W ₁ to the periphery of the rear opening 1 according to the present invention is a rear perspective view, FIG. 2, the weather strip W ₁ according to the present invention below FIG. 3 is a perspective view seen from FIG.
FIG. 4 is a cross-sectional view showing a state where the interior trim T is attached to the flange portion 2, FIG. 4 is a cross-sectional view showing a state where the interior trim T is attached later, and FIG. It is sectional drawing. Weather strip W ₁ according to the present invention, the weather strip W described above ', W "is different only in the shape of the indoor side lip 13 with respect to. That is, each conventional weather strip W', W" indoor side Each of the lips 13 ′ and 13 ″ is a single plate-shaped single lip, whereas the indoor lip 13 of the weather strip W _{1 according} to the present invention includes a main lip portion 13 a,
It is characterized in that it is constituted by two portions having different functions from the auxiliary lip portion 13b.

That is, the indoor side lip 13 is
Main lip portion 13a provided obliquely downward on the indoor side of the vehicle
And an auxiliary lip portion 13b extending obliquely downward toward the anchor portion U at the tip of the main lip portion 13a.
Consists of three parts. The interior lip 13 itself has a substantially L-shaped cross section, and a main lip portion 13a constituting the same.
And the base end of the auxiliary lip portion 13b are connected to each other in a bent state. With reference to the anchor portion U, the connection between the two lip portions 13a and 13b is established. The provided portion is located farther from the tip (free end) of the auxiliary lip portion 13b. The connecting position of the auxiliary lip portion 13b with respect to the main lip portion 13a is not the tip end portion of the main lip portion 13a, but a portion which is slightly inward from the main lip portion 13a. The outer peripheral surface shape is not continuous. This facilitates the elastic deformation of the auxiliary lip portion 13b with respect to the main lip portion 13a. Further, in the indoor lip 13 of this embodiment, the auxiliary lip portion 13b is formed to be thinner than the main lip portion 13a, and is more easily elastically deformed than the main lip portion 13a.

When the interior trim T is retrofitted, when the end of the interior trim T is inserted below the interior lip 13, as shown in FIG. The auxiliary lip portion 13b is largely elastically deformed by the interior trim T so that the crossing angle of the auxiliary lip portion 13b becomes small. If the amount of elastic deformation of the auxiliary lip portion 13b is large, the main lip portion 13a It is slightly elastically deformed, and by the elastic restoring force of both lip portions 13a and 13b,
Auxiliary lip portion 13b is elastic contact with the interior trim T, the entire interior side lip 13, and an anchor portion U of the weather strip W _1, gap 5 generated between the ends of the indoor trim T is covered (Fig. 5 reference). Also, the indoor lip 13
Of the auxiliary lip portion 13b is inclined obliquely downward in the vicinity of the anchor portion U, so that the insertion of the indoor trim T assists the elastic deformation of the auxiliary lip portion 13b. The indoor side lip 13 does not get caught between the lip 13 and the anchor portion U.

When the leading end of the interior trim T is inserted below the interior lip 13, the auxiliary lip 13b is mainly deformed and elastically deformed to form the main lip 13a.
Is elastically deformed in an auxiliary manner, so that even when the interior trim T is displaced from the regular position, the interior trim T and the anchor portion U can be inserted without involving the interior lip 13. The resulting gap 5 can be covered. That is, it is possible to cope with a large variation in the installation of the interior trim T.

FIGS. 6 (a), 6 (b) and 6 (c) show the indoor lip 13 when the room trim T is higher than the normal position, at the normal position, and when the room trim T is lower than the normal position. It is a figure showing the deformation state of. As shown in this drawing, when the interior trim T is higher than the normal position, the deformation amount of both the auxiliary lip portion 13b and the main lip portion 13a increases, and the rear side of the main lip portion 13a The auxiliary lip portion 13b is overlapped with a slight gap. When the interior trim T is at the proper position, the auxiliary lip portion 13b is bent toward the rear side of the main lip portion 13a, but an appropriate gap is left between the two lip portions 13a and 13b. When the trim T is lower than the normal position, only the tip of the auxiliary lip 13b slightly touches the interior trim T, and the deformation of the other portion of the auxiliary lip 13b and the main lip 13a Is
It is extremely low. In this manner, the auxiliary lip portion 13b and the main lip portion 13a depend on the position of the indoor trim T.
And each have a configuration that deforms by an appropriate amount,
Large variations in the interior trim T can be absorbed.

FIG. 7 shows another weather strip W ₂ according to the present invention. Interior lip 13 of the weather strip W _2, in the same manner as mentioned above, is composed of the main lip portion 13a and the auxiliary lip portion 13b, the auxiliary lip portion 13b is continuously provided on the cutting edge portion of the main lip portion 13a The outer peripheral surface of the continuous portion of both 13a and 13b is continuous, and a stolen portion 16 is provided inside the base end of the auxiliary lip portion 13b. By providing the meat stealing portion 16, the auxiliary lip portion 13 can be attached to the main lip portion 13a.
b is easily elastically deformed.

The indoor side lip of the weather strip according to the present invention has a main lip portion extending obliquely downward to the anchor portion, and a front end portion of the main lip portion facing the anchor portion. Since the gist of the present invention is that the auxiliary lip portion extends obliquely downward, the inclination extension angle (θ ₁ ) of the main lip portion with respect to the anchor portion, and the inclination extension angle of the auxiliary lip portion with respect to the main lip portion The setting angle (θ ₂ ) is appropriately determined within the above-described conditions.

[0020]

As described above, according to the weather strip according to the present invention, even when the interior trim is to be retrofitted, the interior side lip extending to the interior side of the anchor portion is not involved, so that the interior trim can be eliminated. The gap formed between the trim and the anchor portion can be covered, and a large variation in the installation of the indoor trim can be absorbed. In addition, when the weather strip is retrofitted, the auxiliary lip portion constituting the interior lip resiliently contacts the interior trim and is greatly deformed, so that the insertion resistance of the weather strip to the flange portion on the vehicle body side is reduced. As a result, the efficiency of the operation of attaching the weather strip is improved.

[Brief description of the drawings]

1 is a perspective view of the two-box car 10 fitted with a weather strip W ₁ to the periphery of the rear opening 1 from the rear according to the present invention.

It is a perspective view of the weather strip W ₁ from below according to the present invention; FIG.

A 3 is a cross-sectional view of a state where the weather strip W ₁ is attached to the flange portion 2 (X-X line sectional view of FIG. 1).

FIG. 4 is a cross-sectional view showing a part of the interior trim T which is attached later.

FIG. 5 is a cross-sectional view showing a state where the interior trim T is attached.

6 (a), 6 (b) and 6 (c) show the case where the room trim T is higher than the normal position and the case where the room trim T is at the normal position, respectively.
And indoor side lip 1 when lower than the normal position
It is a figure which shows the deformation state of No.3.

FIG. 7 is a cross-sectional view showing a state where another weather strip W ₂ according to the present invention is attached to the flange portion 2.

FIG. 8 shows a conventional weatherstrip W ′ having a flange 2
FIG. 4 is a cross-sectional view of a state in which the device is attached to the device.

FIG. 9 is a cross-sectional view showing a state in which another conventional weatherstrip W ″ is attached to the flange portion 2.

FIG. 10 is a cross-sectional view showing a state in which a room side lip 13 ″ of a conventional weather strip W ″ is being wound by a room trim T.

FIG. 11 is a cross-sectional view showing a state in which a room side lip 13 ″ of a conventional weather strip W ″ is rolled up by a room trim T.

[Explanation of symbols]

S: hollow seal portion T: room trim U: anchor portion W _1, W _2: weather strip 5: the gap between the anchor portion and the interior trim 13: indoor side lip 13a: the indoor side lip main lip portion 13b: chamber Auxiliary lip of inner lip

Claims (3)

[Claims] 1. An anchor portion attached to a flange portion on a body side of a vehicle, and a hollow seal portion which elastically deforms to perform a sealing function. A weatherstrip having an inner lip extending therethrough, wherein the indoor lip comprises a main lip portion extending obliquely downward on the indoor side of the anchor portion, and an anchor at a tip end of the main lip portion. A weatherstrip comprising an auxiliary lip portion extending obliquely downward toward the side of the portion. 2. The weatherstrip according to claim 1, wherein the thickness of the auxiliary lip is smaller than that of the main lip. 3. The weatherstrip according to claim 1, wherein a stolen portion is provided at a root portion of the auxiliary lip portion.