JPH06156077A - Seal structure of door glass for automobile - Google Patents

Abstract

PURPOSE:To ensure good sealing action, to satisfy the demand for making the surface flush, and to always attain smooth elevating action by reducing the sliding resistance at the time of moving up and down the door glass. CONSTITUTION:A projecting part 16 having a substantially triangular cross section where the upper end 8b of door glass 8 is pressed is provided on the inner base 11a of a corner part C3 of a main body 11. The projecting part 16 is so formed that its upper face 20 is made to be an acclivity from the cab side to the outdoor side, and formed like a circular arc along the outer peripheral edge of the corner part C2 of the door glass 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sealing structure for an outer peripheral portion of an automobile door glass.

[0002]

2. Description of the Related Art As a conventional sealing structure for a vehicle door glass of this type, for example, one shown in FIG. 4 is known.

To explain the outline, the seal is fitted and held in a window frame 2 which is a sash portion provided on an upper portion of an automobile door body 1 as shown in FIG. 3, and an inner end of the window frame 2 is held. A channel-shaped main body 3 held in a holding groove 2a having a substantially rectangular cross-section formed in a portion of the main body 3 and the inside of the lower end of each of the vehicle outside outer side pieces 4, 5 which are provided so as to face inward. It is mainly composed of a pair of seal lips 6 and 7. The both seal lips 6 and 7 are adapted to sandwich and seal both side surfaces of the outer peripheral portion 8a of the door glass 8 which has entered the main body 3 from below.

[0004]

By the way, the door glass 8 is properly positioned and held in the main body 3 by the elastic reaction force balance between the inner seal lip 6 and the outer seal lip 7. Since the ascending path of the door glass 8 changes intricately and the door glass 8 is bent in a three-dimensional curved shape, the outer peripheral portion 8a has an elastic reaction force of the vehicle interior seal lip 6 at the most ascended position as shown in FIG. There is a possibility that a gap 9 may be generated between the outer surface of the door glass 8 and the outer seal lip 7 of the vehicle by inclining inwardly against the vehicle.

Particularly, a corner C at the front and rear upper ends of the window frame 2
1 and C1, corresponding corners C2 of the door glass 8
Since variations in the bending dimension of C2 are likely to occur, the gap 9 with the vehicle outer seal lip 7 becomes remarkable. As a result, not only the sealing performance between the window frame 2 and the door glass 8 is deteriorated, but also the so-called flash surface for sufficiently reducing the step between the opening edge of the vehicle body and the door glass cannot be satisfied, resulting in a large wind noise. It causes generation and increase of air resistance.

Therefore, for example, as in the technique disclosed in Japanese Utility Model Laid-Open No. 4-70517, Japanese Utility Model Laid-Open No. 2-7124, etc., a lip or a protrusion is provided on the bottom surface of the main body or one side piece on the inside of the vehicle. There is also provided a door glass which is pushed out of the vehicle by the lip and the protrusion. However, since the lip and the projection are formed over the entire inner circumference of the main body, they are always in sliding contact with the door glass, and especially the sliding resistance at the time of ascending and descending due to a drastic trajectory change becomes large, and There is a risk that the smooth lifting and lowering action will be hindered, and each lip and protrusion will be easily worn.

[0007]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art, and is a main body having a substantially U-shaped cross section which is fitted and held in a sash portion provided on an upper portion of a door main body. And a seal lip projecting from the opposing inner end surfaces of the main body and slidingly contacting both side surfaces of the ascending / descending door glass, the corner portion of the main body corresponding to the corner portion of the sash portion. On the inner bottom surface of the, the upper surface is provided with a protruding portion formed in an upward slope along the vehicle outer side, and the protruding portion is formed in a substantially arc shape along the corner portion of the upper end portion of the door glass. It is characterized by that.

[0008]

According to the present invention, when the door glass is lifted and reaches the vicinity of the maximum rise, the upper end of the door glass is guided to the upwardly inclined upper surface while the outer edge of the corner portion is in contact with the upper surface of the protrusion in the main body. While moving, the vehicle moves toward the outside of the vehicle, and the outer surface of the upper end portion uniformly comes into pressure contact with the vehicle outer holding lip. Therefore, it is possible to obtain a good sealing action by the outer-side holding lip and to realize a flash surface.

Moreover, at the most raised position of the door glass, the outer peripheral edge regions of the respective corner portions contact the entire upper surface of the protrusion,
Since the positioning is performed, movement in the front-rear direction of the vehicle body is also regulated, and play is prevented.

Further, since the projections are provided only at the corners of the main body, they are not in contact with the door glass when the door glass is moved up and down, so that sliding resistance is prevented.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 3 shows an automobile door glass seal structure according to the present invention applied to a window frame 2 as a sash portion provided on an upper portion of a door body 1 as in the conventional case.

That is, as shown in FIGS. 1 and 2, the seal includes a rubber main body 11 having a substantially U-shaped cross section and held inside a holding groove 2a of the window frame 2, and a main body 11 inside the vehicle. Side piece 1
2 and a pair of inner and outer seal lips 1 projecting inwardly from the respective tips of the vehicle outer side piece 13 and tip portions 14a and 15a pressing both side surfaces of the outer peripheral portion 8a of the door glass 8.
4 and 15 and projections 16 and 17 provided on the inner bottom surface 11a of the corners C3 and C3 of the main body 11.

The body 11 and the seal lips 14, 15
In contrast, while the straight line portion S corresponding to the straight line portion of the window frame 2 is formed by extrusion molding, the substantially fan-shaped corner portions C3, C3 to which the ends of each straight line portion S are joined are formed by a mold. ing.

The projection 16 has a triangular cross section as shown in FIG. 1 if one side is described for convenience, and is integrally formed at the time of molding the main body 11 and the like.
Is coupled to the bottom surface 11a of the main body 11, and the other side surface 19 is coupled to the inner end surface of the vehicle interior side piece 12.
Then, the upper surface 20 corresponding to the bottom is the one side piece 12 on the inside of the vehicle.
Is formed in an upward slope shape toward the other side 13 on the vehicle outer side.

Further, the projection 16 is extended in an arc shape with a curvature substantially the same as the curvature of the corner portions C2, C2 of the upper end portion 8b of the door glass 8.

Therefore, according to this embodiment, when the door glass 8 is raised and closed, when the door glass 8 reaches the vicinity of the maximum rise, the corner portions C2, C of the upper edge of the inside of the vehicle.
2 abuts on the upper surface 20 of the protrusion 16 from the position indicated by the chain double-dashed line in FIG. 1 and is guided by sliding to the outside of the vehicle along the inclination angle of the upper surface 20. Therefore, the entire upper end portion 8b of the door glass 8 moves and tilts in the vehicle exterior direction, and the outer surface of the upper end portion 8b abuts the vehicle outer seal lip 15a with a uniform pressure. For this reason, a good sealing action can be obtained by the vehicle outer side seal lip 15, and the flash surface can be realized, so that the generation of wind noise and the increase in air resistance during traveling can be suppressed.

Moreover, at the highest position of the door glass 8,
The outer peripheral edge region of each of the corner portions C2, C2 is positioned by abutting on the entire upper surface 20 of the protruding portion 16, so that the door glass 8
Not only the movement in the inside and outside directions of the vehicle but also the movement in the front-back direction of the vehicle body is surely regulated, and it becomes possible to stably support.

Further, the formation positions of the protrusions 16 and 17 are
Since only the corners C3 and C3 of the main body 11 are made, the door glass 8 is not in contact with the door glass 8 at all and is in a non-contact state when the door glass 8 is moved up and down. Therefore, the protrusion 16,
The generation of sliding resistance by 17 is prevented, and the door glass 8
The smooth up and down action can be obtained.

Further, since the projections 16 and 17 can be molded together at the time of molding the main body 11, the molding operation is easy.

The inclination angle of the upper surfaces 20 of the protrusions 16 and 17 is set to such an extent that good slidability of the corner portions C2 and C2 of the door glass 8 can be obtained. Also, the upper surface 20
It is also possible to coat the sliding material on the.

[0022]

As is apparent from the above description, according to the seal structure for an automobile door glass according to the present invention, since the bottom surface of the main body is provided with the projection portion whose upper surface is inclined upward toward the exterior of the vehicle, the door glass is provided. Since the upper end of the door glass can be moved in the outermost direction of the vehicle and brought into contact with the outer seal lip with a uniform pressure, a good sealing action can be obtained and the flash surface can be formed. Will be possible.

Further, since the projection is formed in a substantially arcuate shape along the upper edge corner of the door glass, the projection positions the door glass at the most raised position, thereby reliably restricting the movement in the vehicle longitudinal direction. It will be possible.

Further, since the protrusions are provided only at the corners of the main body, the occurrence of sliding resistance when the door glass is moved up and down is prevented, and a smooth up and down action is always obtained.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line AA of FIG. 2 showing a seal structure of the present invention.

FIG. 2 is a front view of a main part showing a seal structure of the present embodiment.

FIG. 3 is a side view of an automobile door to which this embodiment is applied.

FIG. 4 is a cross-sectional view taken along line BB of FIG. 3 showing a conventional seal structure.

FIG. 5 is a sectional view taken along the line CC of FIG. 3 showing the conventional seal structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door main body 2 ... Window frame (sash part) 8 ... Door glass 8b ... Upper end 11 ... Main body 11a ... Bottom 12 ... Car interior one side piece 13 ... Car exterior other side piece 14 ... Car interior seal lip 15 ... Car exterior Seal lip 16, 17 ... Projection 20 ... Upper surface C1 ... Window frame corner C2 ... Door glass corner C3 ... Main body corner

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location 7447-3D B60J 1/17 J

Claims (1)

[Claims] 1. A main body having a substantially U-shaped cross section which is fitted and held in a sash portion provided on an upper part of a door main body, and both side surfaces of a door glass which are provided so as to project from the inner end surfaces of the main body, which are opposed to each other. A sealing structure having a sealing lip that is in sliding contact with the inside bottom surface of a corner portion of the main body corresponding to the corner portion of the sash portion, and a projection in which an upper surface is formed in an upward slope along the vehicle outer side from the vehicle inner side. A sealing structure for an automobile door glass, characterized in that the protrusion is formed in a substantially arc shape along a corner portion of an upper end portion of the door glass.