JP3288781B2 - Corner piece glass run - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner piece grass run.

[0002]

2. Description of the Related Art A corner piece used for a front side door of an automobile guides a door glass by a corner piece glass run provided on the rear side of the corner piece, and the tip of each of an inner lip and an outer lip is a door. Close contact with the inside and outside surfaces of the glass ensures watertightness inside and outside the door glass.

As described above, since the corner piece glass run is required to be watertight with respect to the door glass, for example, as shown in FIG. There is one in which the tip of each of the lips 5 abuts to increase the sealing reaction force against the door glass 6 (Japanese Patent Laid-Open No. 4-182107).
Reference).

Further, as shown in FIG. 10, the tip of the inner lip 4 and the outer lip 5 which are in close contact with the door glass 6 are offset to the front and rear, thereby facilitating molding and ensuring an appropriate sealing reaction force to the door glass 6. Some of them are obtained (see Japanese Utility Model Application Laid-Open No. 62-70015).

[0005]

However, in the former corner piece glass run, the core 3 is disposed because the misalignment of the core 3 directly leads to a shape error between the inner lip 4 and the outer lip 5. In such a case, there is a problem that the positioning accuracy must be increased, and as a result, the manufacturing cost increases, which leads to an increase in cost.

In the latter corner piece grass run, there is a problem in that the inner lip 4 and the outer lip 5 have different lengths, so that the appearance is poor.

Accordingly, the present invention provides a corner piece glass run which is easy to manufacture, has good appearance quality, and can improve the sealing performance while absorbing the dimensional variation of the door glass and the like.

A corner piece glass run, which is mounted in a groove of a core metal of a corner piece provided at a door waist portion of a front side door and guides a door glass up and down, has a U-shaped cross section along the shape of the core metal . the tip of the pair of side walls of the glass run body, an inner lip and an outer lip closely to the door glass is formed, in the vicinity of the base portion between the inner lip and the outer lip, the locking is locked to the ends of the core A notch portion is formed on the side wall between each of the locking portions and the bottom portion of the glass run main body, the notch portion being formed so that the side wall can be flexed in and out of the vehicle interior. There the Rukoto housed core inside metal bent in a direction mutually close to each other, the seal portion is Ru <br/> provided closely to the door glass to the portion leading to the locking portion from the notch portion of the side wall.

[0009]

In the case of manufacturing, the inner lip is opened at the notch portion and the outer lip is opened toward the outside of the passenger compartment, thereby facilitating the manufacturing.

In the assembled state, in addition to the inner lip and the outer lip, each seal portion is in close contact with the inner and outer surfaces of the door glass, thereby maintaining watertightness.

On the other hand, when the door glass is obliquely inserted due to improper installation or the like, the force acting on the biased seal portion applies the inner lip or the outer lip to the door glass with the locking portion as a fulcrum. Engages in the pressing direction and increases the sealing reaction force of the inner lip and outer lip.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the door weather strip 7 of the sashless door is provided over the rear, lower, and front sides of the front side door, and a corner piece glass run 8 on the rear side of the corner piece C is provided. And are integrally formed.

As shown in FIGS. 1 and 3, the corner piece glass run 8 is mounted inside a groove of a metal core 9 having a U-shaped cross section, and guides the door glass 10 up and down. The corner piece glass run 8 is formed at the tip of the side wall 12 of the glass run main body 11 having a U-shaped cross section formed along the shape of the cored bar 9. And an outer lip 14. The inner lip 13 and the outer lip 14 are
When they are mounted on the door glass 10, they overlap with each other to apply a predetermined surface pressure to the door glass 10.

Near the base of each of the inner lip 13 and the outer lip 14, a side wall 1 of the glass run main body 11 is provided.
A locking piece 15 is provided as a locking portion that branches forward from (2) and extends forward (FR). A groove formed by the locking piece 15 and the side wall 12 is locked to an end of the cored bar 9. Then, a corner piece glass run 8 is attached to the core 9.
The corner piece cover 16 is attached so as to cover the locking piece 15 from the outside.

On the side wall 12 of the glass run main body 11, between the locking piece 15 and the bottom wall 17 of the glass run main body 11,
Notch portions 18 are provided at the tip end of the side wall 12 of the glass run main body 11 so as to be flexible in the outside direction of the vehicle compartment. The notch portion 18 is provided on the side wall 12 on the inside of the vehicle compartment and on the outside wall of the side wall 12 on the outside of the vehicle compartment. I have. A notch 19 is also provided at a corner between the bottom wall 17 and the side wall 12 of the glass run main body 11.

[0017] Then, mounted by being bent in the direction of the side wall 12 of the glass run body 11 the notches 18 as the starting point mutually close to each other, the back seal portion S of the notch portion 18
As close as possible to the door glass 10.

The notches 18 are provided in the vertical direction as shown in FIG. 3. Each notch 18 is provided at a fixed distance D from the tip of the inner lip 13 and the outer lip 14. The reason why the notch portion 18 is set at a fixed distance D from the tips of the inner lip 13 and the outer lip 14 is as follows. As shown in FIG. 5, the corner piece glass run 8 generally has a greater width in the front-rear direction as it goes downward. For this reason, the tip of the inner lip 13 and the outer lip 14 is fixed at a constant width L as shown in FIGS.
In this case, since the angle θ in FIG. 6 is not equal to the angle θ ′ in FIG. 7, the side wall 12 of the glass run main body 11 has a twisted shape from the upper side to the lower side, and it becomes difficult to process the mold. Therefore, by setting the position of the notch portion 18 at a fixed distance D from the tip of the inner lip 13 and the outer lip 14, the inner lip 1
The distance between the base portion of the glass run 3 and the outer lip 14 (the tip portion is overlapped) can be made constant, and the molding of the side wall 12 of the glass run main body 11 is facilitated.

When manufacturing the corner piece glass run 8, the side walls 12 are set so as to be substantially parallel from the notch portion 18 to the notch portion 19 as shown in FIG. At the base of the lip 13 and the outer lip 14, the inner lip 13 and the outer lip 14 are formed so as to open to the vehicle interior and the outer lip 14 to the vehicle exterior. Then, when this corner piece glass run 8 is mounted on the cored bar 9, as shown in FIG.
In FIG. 8, a bent state is obtained.

According to the structure of the above embodiment, as shown in FIG. 4, the inner lip 13 and the outer lip 14 can be manufactured with the notch portion 18 as a starting point and open to the vehicle interior and the vehicle exterior, respectively. The inner lip 13 and the outer lip 14 can be formed longer, and the sealing reaction force against the door glass 10 can be increased in a state where the inner lip 13 and the outer lip 14 are attached to the groove of the cored bar 9, thereby improving watertightness. In addition, since the inner lip 13 and the outer lip 14 can be formed in an open state as described above, the inner lip and the outer lip can be formed as compared with the related art in which the inner lip and the outer lip are affected by the positioning accuracy of the core. Therefore, the cost of the mold and the production cost can be reduced, and there is no problem in appearance quality.

Here, as shown in FIG.
In the state where 0 is located between the inner lip 13 and the outer lip 14, not only the inner lip 13 and the outer lip 14 but also
Since the seal portion S on the back side of each notch portion 18 is in close contact with the inside of the door glass 10, the outer lip 14 and the door glass 10
Even if water enters from between, the water can be stopped here, and the reliability in terms of watertightness increases.

If the door glass 10 is inclined as shown by a chain line in FIG. 1 due to a variation in the door glass 10 or the door panel, for example, the sealing reaction force of the inner lip 13 is reduced as it is. However, the front end side of the door glass 10 is the sealing portion S on the vehicle interior side.
Is pressed from the back side (indicated by an arrow X), so that the locking pieces 15
The tip of the inner lip 13 is pressed to the outside of the vehicle compartment as indicated by an arrow Y with the base portion of the inner lip 13 as a fulcrum. Accordingly, the sealing reaction force of the inner lip 13 is increased, and does not adversely affect water tightness.

The bottom wall 17 of the glass run main body 11 is provided.
Since the side wall 12 of the glass run main body 11 is not in contact with the metal core 9, the side wall 12 of the glass run main body 11 can easily move at the notch portions 18 and 19.

FIG. 8 shows a second embodiment of the present invention (the same parts as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted). In this embodiment, a seal lip 20 is provided on the inner surface of a side wall 12 on the vehicle cabin side of a glass run main body 11 as a seal portion that is in close contact with a door glass 10. According to this embodiment, there is an effect that the seal lip 20 can make the double seal structure more reliable. The seal lip 20 may be provided also on the side wall 12 outside the vehicle compartment.

[0025]

As described above, according to the present invention, since the side walls are bent in the directions approaching each other starting from the notch, they are housed in the grooves of the metal core, so that during manufacturing, The inner lip and the outer lip can be formed in a state of being opened in a direction separating from each other. Therefore, the inner lip and the outer lip can be lengthened,
As a result, the seal reaction force between the inner lip and the outer lip when mounted in the groove of the cored bar is increased, and the water tightness can be improved, and the length of the inner lip and the outer lip can be made the same to improve the appearance quality. Can be enhanced.

Further, since the seal portion is provided in addition to the inner lip and the outer lip, a double seal structure is formed together with the inner lip or the outer lip, and the reliability in terms of watertightness can be improved.

Since the side wall is bent starting from the notch, the pressing force from the door glass acting on the notch even when the door glass is inserted in an unbalanced state is supported by the locking portion as a fulcrum. Since the lip or the outer lip acts as a pressing force against the door glass, watertightness is enhanced, and therefore, even if there is a variation in the position of the door glass, this can be sufficiently tolerated.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of the present invention at a position along the line AA in FIG. 3;

FIG. 2 is a side view of the door weather strip.

FIG. 3 is a partially enlarged view of FIG. 2 of a corner piece glass run.

FIG. 4 is a cross-sectional view taken along line AA of FIG. 3 after molding.

FIG. 5 is a side view of a corner piece glass run.

FIG. 6 is a sectional view taken along the line BB of FIG. 5;

FIG. 7 is a sectional view taken along the line CC of FIG. 5;

FIG. 8 is a sectional view corresponding to FIG. 1 of another embodiment.

FIG. 9 is a sectional view of a conventional technique.

FIG. 10 is a cross-sectional view of another related art.

[Explanation of symbols]

 Reference Signs List 8 ... Grass piece glass run 9 ... Core metal 11 ... Glass run body 12 ... Side wall 13 ... Inner lip 14 ... Outer lip 15 ... Locking piece (locking portion) 17 ... Bottom wall 18 ... Notch portion C ... Corner piece S ... Seal portion

Claims (1)

(57) [Claims] 1. A mounted on the front side in the groove of the core metal of the corner piece which is provided on the door waist portion of the door in the corner piece glass run for lifting guide the door glass, the cross-section co along the shape of the core metal shaped shaped for glass run body
An inner lip and an outer lip, which are in close contact with the door glass, are formed at the tips of the pair of side walls , and a metal core is provided near the base of the inner lip and the outer lip.
End locking portion is a locking is provided each of the side between the bottom of the engaging portion and the glass run body
The wall formed with the side wall flexible possible notch in the vehicle interior outside direction by Rukoto housed in the notch portion as a starting point bent in a direction mutually proximate said side walls to one another core in metal, the corner piece glass run, wherein a seal portion closely to the door glass to the portion leading to the locking portion from the notch portion of the side wall Ru provided.