JP3484034B2 - Window glass guide support structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide support structure (glass run structure) for automobile window glass.

[0002]

2. Description of the Related Art FIG. 5 is a cross-sectional view of a conventional window glass guide and support structure ("New Car Manual, Bluebird U14 Series Car", issued by Nissan Motor Co., Ltd. January 1996, D-
12). This structure not only guides and supports the side edge of the window glass (hereinafter, simply referred to as “glass”) 1, but also functions to seal the space between the outside A and the inside B of the vehicle, and accommodates the side edge of the glass 1. It has a core material 2 made of a rigid material and having a substantially U-shaped cross section, which is provided with a groove 3. The core material 2 has a bottom wall 2a and both side walls 2b and 2c which form the groove 3.

A solid rubber (solid elastic material) R having a predetermined shape is integrated at a predetermined position on the surface of the core material 2 by extrusion molding the core material 2 as a core metal.
Seal lips 5 and 6 made of the solid rubber R are formed in a cantilever shape at the tips of both side walls 2b and 2c of the core material 2. Seal lips 5, 6 on the outside A side and inside B side of the vehicle
Is from the bases 5a and 6a held on the side walls 2b and 2c,
Tip portion 5b toward outer surface 1a and inner surface 1b of glass 1,
6b is extended to form a curved shape, and the curved tip portions 5b and 6b are brought into close contact with the outer surface 1a and the inner surface 1b of the glass 1 to elastically support the glass 1 while sealing between the outside A and the inside B of the vehicle. There is.

The inner bottom portion of the groove 3 of the core material 2, that is, the bottom wall 2
A cushioning material 7 that receives the side end surface 1e of the glass 1 is provided on a. The cushioning material 7 is made of rubber that is the same as or harder than the solid rubber R described above, and is integrated with the core material 2 together during the extrusion molding.

By the way, in the conventional guide support structure of this type, a large gap is provided between the glass 1 and the core member 2 in order to allow for variations in parts, and the seal lips 5, 6 are provided.
The extension length of the seal lip 5, 6
By reducing the pressing force of the glass 1, the lifting resistance of the glass 1 is reduced.

[0006]

However, if the extending length of the cantilevered seal lips 5, 6 is increased, the force for holding the glass 1 becomes weaker, so that the glass 1 rattles when traveling on a rough road. There is inconvenience. Further, as shown in FIGS. 6 and 7, since the deformation degree of the free end portions 5a and 6a is increased, the tapping sound when the glass 1 hits the seal lips 5 and 6, and the seal lips 5 and 6 The tip portions 5a and 6a are the core material 2
On the other hand, there is a problem that a detachment sound at the time of detaching and attaching is likely to occur largely at places P1 and P2 shown in the figure. Further, since it has a cantilever shape, the shape is complicated and it is difficult to manage the reaction force by extrusion molding. Further, as shown in FIG. 8, since it is difficult to reduce the distance between the cushioning material 7 formed only of solid rubber and the side end surface 1e of the glass 1, there is a problem that a hit sound is generated at the P3 position.

On the other hand, in the above conventional example, the seal lip 5,
Since it has a complicated shape such as a space that is largely intruded inside 6, there is a problem that it is difficult to manage the reaction force of the seal lips 5 and 6 during the extrusion molding.

In consideration of the above circumstances, the present invention can stably support the window glass, solve the problems of hitting sound, releasing sound, and hitting sound, and manage the reaction force of the sealing material. An object of the present invention is to provide a window glass guide support structure that can be facilitated.

[0009]

According to a first aspect of the present invention, there is provided a window glass guiding and supporting structure for guiding a side edge of a window glass so that the side edge of the window glass can be raised and lowered, and a side edge of the window glass. A core material made of a rigid material having a substantially U-shaped cross-section having a groove for accommodating, and having a mountain-shaped cross section which is held on both side walls of the core material and bulged toward the window glass, and near the apex of the mountain-shaped cross section. and a vehicle interior side and exterior seal material of the inner surface and made of an elastic material is brought into close contact with the outer surface of the window glass, the sealing material is a sponge-like
An elastic member made of a solid elastic material and a thin to be brought into close contact with the window glass by being provided as a surface layer material, the prospective portion of the groove, gently inclined toward the interior side
An impact material is provided, and the cushioning material is a sponge-like elastic material,
It consists of a solid elastic material provided as the surface material.
On the surface of the solid elastic material,
It is characterized in that a hard rubber for contacting the edge of the lath is provided .

In this guide support structure, since a seal material having a chevron cross section is adopted, unlike the conventional cantilever type seal lip, there is no free end that can be greatly deformed. Therefore, the problems of hitting sound and releasing sound as in the past are solved. In addition, since the sealing material is composed mainly of sponge-like elastic material and the solid elastic material is arranged only on the surface layer of the window glass or in contact with the outside air, the window glass can be supported without increasing the lifting resistance. You can increase your strength. Further, since the sealing material has a chevron cross section and a simple shape, the reaction force of the sealing material by extrusion molding can be easily managed. Furthermore, in this guide support structure, cushioning material is
Since it is tilted inward, the glass is
When the side end surface of the
Be guided. Molding cushioning material mainly with sponge-like elastic material
Therefore, it is possible to increase the deformable amount of the cushioning material.
It will be easy to do. Receive the edge of the window glass
Adjusting the reaction force when kicking, use solid elastic material and sponge
Can be made of elastic material, edge of window glass
The guide along the inclination of can be made with hard rubber.
It

A second aspect of the present invention is the guide support structure for a window glass according to the first aspect, in which a side surface of the sealing material having the chevron cross section, which is on the inner side when viewed from the inner bottom of the groove of the core material,
The sponge-like elastic material is exposed.

In this guide support structure, since a part of the sponge-like elastic material is exposed, after the sponge-like elastic material contracts, the sponge-like elastic material quickly returns to its original shape, and the followability is improved.

According to a third aspect of the invention, there is provided the window glass guiding and supporting structure according to the second aspect, wherein the exposed portion of the sponge-like elastic material is formed in a concave shape.

In this guide support structure, since the exposed portion of the sponge-like elastic material is formed in a concave shape, it is possible to avoid contact between the sponge-like elastic material and the window glass even during maximum compression.

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

According to the first aspect of the present invention, since the seal material is formed in a chevron shape in cross section, unlike a conventional cantilever type seal lip made of only solid rubber, there is no free end that can be largely deformed. It is possible to solve the problems of tapping sound and release sound. In addition, since the sealing material is composed mainly of sponge-like elastic material and the solid elastic material is arranged only on the surface layer of the window glass or in contact with the outside air, the supporting force for the window glass is increased without increasing the lifting resistance of the window glass. Can be increased. Therefore, the window glass can be stably supported at all times, and the rattling of the window glass when traveling on a bad road can be prevented. Further, since the sealing material has a chevron cross section and a simple shape, it becomes easy to manage the reaction force of the sealing material by extrusion molding, and it is possible to improve the settling phenomenon of the reaction force over time. Furthermore, toward the inside of the car
The slanted cushioning material keeps the glass inside the vehicle during lifting operation.
Since it can be guided, the outside of the car where the seal load is heavy
The surface pressure of the sealing material can be reduced,
It is possible to improve durability. Also, mainly sponge-like elastic materials
Since the cushioning material is molded by using the
Easy to take large, side edge of window glass
Improve the conventional hitting sound by reducing the distance between the surface and the cushioning material
To the displacement of the edge of the window glass while being able to
Follow-up performance and guidance inward in the vehicle width direction are performed more smoothly.
You can make it.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the followability of the sealing material is improved, so compared with the case where the entire surface of the sponge-like elastic material is covered with the solid elastic material. Thus, the window glass can always be stably supported, and rattling of the window glass can be more reliably prevented.

According to the invention of claim 3, in addition to the effect of the invention of claim 2, since the exposed portion of the sponge-like elastic material is formed in a concave shape, the sponge-like elastic material and the window glass are formed even at the time of maximum compression. The contact can be avoided, and the deterioration of the sliding of the window glass can be prevented. That is,
If the shape is not concave, the sponge-like elastic material may bulge from the exposed part that is not constrained by the solid elastic material at the time of maximum compression and contact with the window glass, which may lead to worse sliding of the window glass. By this, swelling can be suppressed, contact between the sponge-like elastic material and the window glass can be avoided, and deterioration of sliding of the window glass can be prevented.

[0024]

[0025]

[0026]

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a window glass guide and support structure according to the embodiment.

This guide support structure has a core member 2 having the same shape as that shown in FIG. At a predetermined position on the surface of the core material 2,
By extruding the core material 2 as a core metal, a solid rubber (solid elastic material) R having a predetermined shape is integrated. Further, at a predetermined position, a sponge (sponge-like elastic body) S is simultaneously extrusion-molded between the back surface of the solid rubber R and the core material 2.

At the tips of the side walls 2b and 2c of the core member 2,
Sealing portions (sealing materials) 15 and 16 having a two-layer structure in which the solid rubber R is a thin surface layer material and the back side is a sponge S as a backup material are formed. Seal part 1
Reference numerals 5 and 16 have a chevron-shaped cross-section that rises from the side walls 2b and 2c. Sealing parts 15, 1 on the outside A side and inside B side of the vehicle
The solid rubber R constituting 6 has a curved shape in which the tip portions 15b and 16b extend from the base portions 15a and 16a held by the side walls 2b and 2c toward the outer surface 1a and the inner surface 1b of the glass 1, Curved tip 1 corresponding to
The outer surface 1a and the inner surface 1b of the glass 1 are brought into close contact with each other by 5b and 16b to seal between the outside A and the inside B of the vehicle. Also,
Since the sponge S exists behind the thin solid rubber R formed in the curved shape, the glass 1 is stably elastically supported.

The solid rubber R of the seal portions 15 and 16 is
It is formed up to a position around the apex of the seal portions 15 and 16 having a chevron cross section, and is located inside thereof, that is, the groove 3 of the core material 2.
The side surface on the inner side when viewed from the inner bottom is a part without the solid rubber R. Therefore, the sponge-like elastic material S is exposed at this portion. These exposed parts 15c, 16c
Is a surface substantially perpendicular to the window glass 1 and is formed in a concave shape.

A dustproof lip 18 is formed on the outside of the seal portion 15 on the outside A side by extending the solid rubber R from the base portion 15a of the seal portion 15. By pressing the tip of the dustproof lip 18 against the outer surface 1a of the glass 1, dust is prevented from entering from the outside and the seal portion 1 is provided.
5 has the function of compensating for the deterioration of wear resistance.

The inner bottom portion of the groove 3 of the core material 2, that is, the bottom wall 2
A cushioning material 17 that receives the side end surface 1e of the glass 1 is provided on a. The cushioning material 17 has a thin cantilevered solid rubber R provided on the upper surface of the sponge S, and a hard rubber 19 harder than the solid rubber R on the upper surface thereof.
Is provided, and the contact portion of the side end surface 1e of the glass 1 is inclined toward the vehicle interior B side. This cushioning material 17
Is also integrated with the core material 2 at the time of extrusion molding.

Next, the operation will be described.

FIG. 2 also shows how the seal portions 15, 16 and the cushioning material 17 are deformed when the glass 1 is displaced from the neutral position shown by the dotted line in each direction.

When the glass 1 is displaced to the outside A side of the vehicle, the outer seal portion 15 is compressed and deformed so that the peaks are crushed, and the elastic reaction force acts on the glass 1. When the glass 1 is displaced toward the vehicle interior B side, the vehicle interior seal portion 16 is compressed and deformed so that the ridges are crushed, and the elastic reaction force acts on the glass 1. Therefore, the glass 1 is supported so as to always return to the neutral position by the force of both seal portions 15 and 16. Further, when the side end surface 1e of the glass 1 hits the cushioning material 17, the cushioning material 17 is compressed and deformed to absorb the contact.

In particular, in this structure, since the seal portions 15 and 16 having a chevron-shaped cross section support the glass 1 while being compressed and deformed, unlike the conventional cantilever-shaped seal lip, a tapping sound and a releasing sound are not generated. . Further, since the seal portions 15 and 16 are mainly composed of the sponge S, and the solid rubber R is arranged in a film shape only on the glass 1 or the surface layer portion in contact with the outside air, the glass 1 does not increase the up-and-down resistance. The supporting power for 1 can be increased. Further, by including the sponge S, the seal portions 15 and 16 have a simple cross-sectional chevron shape, so that it becomes possible to easily manage the reaction force of the seal portions 15 and 16 by extrusion molding, and to reduce the reaction force with time. It is possible to improve the settling phenomenon. Therefore, the glass 1 can always be stably supported, and the rattling of the glass 1 when traveling on a bad road can be prevented.

Further, in the case of this structure, the entire surface of the sponge S is not covered with the solid rubber R but a part of the sponge S is exposed, so that the sponge S quickly returns to its original shape after contraction. As a result, the followability is improved. Therefore, the glass 1 can be supported more stably as compared with the case where the whole is covered with the solid rubber R.

The exposed portions 15c, 16 of the sponge S are also
Since c is formed in a concave shape, sponge S is used even during maximum compression.
It is possible to avoid contact between the glass 1 and the glass 1.

This point is shown in FIG.
Described in.

When the exposed portion 16c has a concave shape as in the present embodiment shown in FIG. 3A, the sponge S of the exposed portion 16c is hidden inside the solid rubber R even if it is compressed and deformed. Therefore, the contact between the sponge S and the glass 1 can be avoided even at the time of maximum compression, but when the exposed portion 26c is not formed in a concave shape like the seal portion 26 shown in FIG. 3B, FIG. As shown in (1), the sponge S swells from the exposed portion at the time of maximum compression and comes into contact with the glass 1, which causes slipping of the glass. Therefore, by making it concave like the present embodiment, it is possible to prevent the slippage of the glass 1 from becoming worse.

Further, in the case of this structure, since the cushioning material 17 is provided so as to be inclined toward the vehicle interior B side, as shown in FIG.
When the side end surface 1e of the glass 1 hits the surface of the hard rubber 19 of the cushioning material 17 during the lifting operation, the glass 1 can be guided to the vehicle interior B side. Moreover, the hard rubber 19 can surely guide the vehicle. Therefore, it is possible to reduce the surface pressure of the seal portion 15 on the outer side of the vehicle, which has a large seal load, and improve the durability of the seal portion 15. Also,
Since the cushioning material 17 is mainly formed of the sponge S, the deformable amount of the cushioning material 17 can be easily increased. Therefore, it is possible to improve the hitting sound when the glass 1 hits the cushioning material 17.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view for explaining the operation of the embodiment of the present invention.

3A is a cross-sectional view of a vehicle interior sealing material according to an embodiment of the present invention, FIG. 3B is a cross-sectional view of a vehicle interior sealing material shown as a comparative example, and FIG. 3C is a problem pointed out in the comparative example. FIG.

FIG. 4 is a sectional view for explaining the operation of the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a conventional example.

FIG. 6 is a cross-sectional view shown to point out a problem of a vehicle interior sealing material in a conventional example.

FIG. 7 is a cross-sectional view shown to point out a problem of a vehicle exterior sealing material in a conventional example.

FIG. 8 is a cross-sectional view shown to point out a problem of the elastic cushioning material in the conventional example.

[Explanation of symbols]

1 window glass 2 core material 2a bottom wall 2b, 2c Side wall 3 grooves 15 Seals on the outside of the car (seal material) 16 Sealing part inside the car (seal material) 15c, 16c Exposed part 17 cushioning material 19 hard rubber A outside the car Inside B R Solid rubber (solid elastic material) S Sponge (sponge-like elastic material)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60J 1/16

Claims (3)

(57) [Claims] 1. A guide support structure for a window glass that guides the side edge of the window glass so as to move up and down and seals the inside and outside of a vehicle compartment. Core material made of a rigid material, and an elastic member that is held on both side walls of the core material and has a chevron cross section that is bulged toward the window glass, and that the apex of the chevron cross section is in close contact with the inner and outer surfaces of the window glass. A sealing material for the vehicle inner side and the vehicle outer side made of a material is provided, and the sealing material is made of a sponge-like elastic material and a thin-walled solid elastic material which is provided as a surface layer material thereof and is brought into close contact with the window glass , A cushioning material that is inclined toward the inside of the vehicle is installed in the internal part of the groove.
The cushioning material is used as a sponge-like elastic material and its surface layer material.
And the window glass on the surface of the solid elastic material.
A window glass guide support structure characterized by the provision of hard rubber that touches the edges of the window. 2. The window glass guide supporting structure according to claim 1, wherein the sponge-like elastic material is exposed on a side surface of the sealing material having the chevron cross section, which is on the inner side when viewed from the inner bottom of the groove of the core material. A structure for guiding and supporting a window glass, which is characterized in that 3. The window glass guide support structure according to claim 2, wherein the exposed portion of the sponge-like elastic material is formed in a concave shape.