JP2002205550A - Glass run and its mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass run for retaining an initial appearance shape. SOLUTION: The glass run 2 comprises a flange storage part 32 (38) in approximately U-shaped cross section having a side wall 22 (24) mounted along a flange 18 between a pair of opposed flanges 18a, 18b provided on a door sash part 10, and a molding portion 30 (36) protruded from the end of the side wall 22 (24). The flange 18 is stored in the flange storage part 32 (38) and the end of the molding portion 30 (36) contacts the flange 18. The flange storage part 32 (38) is formed with a bridging portion 40 (42) which the end of the flange 18 contacts, which is spaced from and opposed to the bottom of the flange storage part 32 (38) and which connects the side wall 22 (24) and the molding portion 30 (36) in the flange storage part 32 (38).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run and its mounting structure.

[0002]

2. Description of the Related Art An up-and-down window glass for a door of an automobile has an outer peripheral edge sealed by a glass run attached to a door sash portion.

[0003] As such a glass run, the one shown in FIG. 9 has been conventionally known (for example, see Japanese Utility Model Publication No. 3-26616).

The glass run 80 has a structure in which a main body portion 81 having a substantially U-shaped cross section is sandwiched and fixed between a pair of opposed flanges 83a and 83b provided on a door sash portion 82. 81 outer side wall 84
The outer flange 83a is accommodated by the outer molding portion 85 protruding from the tip of the outer sidewall 84, and the inner flange 86a of the main body 81 and the tip of the inner sidewall 86 protrude. The vehicle interior flange portion 83b is accommodated by the vehicle interior molding portion 87.

[0005]

Such a glass run 80 is provided with the molding portions 85, 8 in an initial mounting state.
7 are formed so as to abut against the flanges 83a and 83b, respectively. However, when exposed to the hot sun in summer, the shapes of the molding portions 85 and 87 are deformed from the initial state, and the molding portions 85 and 87 are deformed from the initial state. The leading ends of the portions 85 and 87 may be separated from the flanges 83a and 83b, respectively, resulting in a so-called open state.

A gap is provided between a channel 88 connecting the flanges 83a and 83b and a bottom wall 89 of the main body 81 to absorb a dimensional variation between the glass run 80 and the door sash 82. Wind glass 9
When the bottom wall 89 is bent and deformed toward the channel 88 by the contact of the bottom glass 89 with the bottom glass 89, that is, when the window glass 9
Even when 0 protrudes toward the bottom wall 89 (see the window glass 90 and the bottom wall 81 indicated by broken lines in the figure), the shapes of the molding portions 85 and 87 are deformed from the initial state,
The tip of each of the molding portions 85 and 87 is each flange 83
a, 83b, and may be similarly opened.

[0007] Therefore, not only does the exterior shape deteriorate, but also in the exterior molding portion 85 exposed to the outside, there is a danger that water may enter from the opened portion and wind noise is generated. There is a possibility that it will be.

[0008]

SUMMARY OF THE INVENTION Accordingly, the invention according to claim 1 is a glass run which is attached between a pair of opposed flanges provided on a door sash portion and seals an outer peripheral edge of a window glass. A side wall of the glass run along the flange, and a molding portion protruding from a tip of the side wall, the glass run having a substantially U-shaped flange accommodating portion, wherein the flange is accommodated in the flange accommodating portion. , In the flange receiving portion,
A bridging portion facing the bottom of the flange accommodating portion at a distance and connecting the side wall and the molding portion is formed in the flange accommodating portion. When the flange is accommodated in the flange accommodating portion, the tip of the flange abuts on the bridge portion, and the bridge portion bends and deforms toward the bottom of the flange accommodating portion. Then, as the bridge portion bends and deforms, the tip side of the molding portion falls down toward the flange.

A second aspect of the present invention is characterized in that, in the first aspect of the invention, at least two or more bridge portions are formed at intervals in a longitudinal direction of the glass run. I have. By forming the bridge portion, the reaction force from the bridge portion acts on the flange, but by appropriately setting the number of the bridge portions, the reaction force from the bridge portion acting on the flange Is adjusted.

According to a third aspect of the present invention, in the first aspect, a plurality of slits are provided in the bridge portion along a longitudinal direction of the glass run. By forming a bridge,
A reaction force from the bridge portion acts on the flange, but by providing a slit in the bridge portion, the rigidity of the bridge portion can be relatively reduced. That is, by providing the slit, the reaction force acting on the flange from the bridge portion is adjusted.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the cross-section is substantially V-shaped so as to be convex toward the bottom of the flange accommodating portion. It is characterized in that it is formed in a character shape.

According to a fifth aspect of the present invention, in the second aspect of the present invention, the front end of the flange is located between a pair of adjacent bridging portions and fitted to the pair of adjacent bridging portions. It is characterized in that a matching projection is formed. Thus, the flange accommodating portion does not relatively displace from the flange along the glass run longitudinal direction.

According to a sixth aspect of the present invention, in the third aspect of the present invention, a protrusion is formed at a tip end of the flange to be fitted into a slit provided in the bridge portion. Features.

According to a seventh aspect of the present invention, in the fifth or sixth aspect of the present invention, the cross-section is substantially V-shaped so as to be convex toward the bottom of the flange accommodating portion.
It is characterized in that it is formed in a character shape.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a sectional view of a main part of a glass run 2 according to the present invention, and is a sectional view taken along the line AA of FIG.

The outer peripheral edge of the rear portion of the window glass 6 is slidably sealed by a glass run vertical portion 8.
Here, the glass run 2 is made of rubber or a resin material, and is mounted on a door sash 10 along a vehicle body roof from a front pillar, and a glass run upper side 12.
A glass run vertical portion 8 is attached to the door sash portion 10 along the vertical direction of the vehicle, and a glass run corner portion 14 connects one end of the glass run upper side portion 12 and one end of the glass run vertical portion 8.

As shown in FIG. 1, the glass run vertical portion 8 has a main body 16 having a substantially U-shaped cross section mounted between a pair of flanges 18a and 18b opposed to each other. That is, the grass run vertical portion 8 fits into the grass run accommodating portion 20 provided with the inside flange 18b and the outside flange 18a of the door sash portion 10 formed in a frame shape together with the outer panel and the inner panel forming the door body. It is fixed.

In the figure, reference numeral 21 denotes a glass run accommodating section 20.
The channel 21 is connected to the flanges 18a and 18b.

The main body 16 comprises an outer side wall 22 and an inner side wall 24 facing each other, and a bottom wall 26 connecting these side walls 22 and 24.

An outer lip 2 that projects obliquely toward the U-shaped space of the main body 16 is provided at the end of the outer side wall 22.
8 is provided, and an outer molding part 30 that covers the outer flange 18a is provided. That is, the outer flange 18a is housed in the outer flange housing portion 32 including the outer wall 22 and the outer molding portion 30.

An inner lip 34 that projects obliquely into the U-shaped space of the main body 16 is provided at the tip of the inner side wall 24.
An interior molding portion 36 that covers the inside 8b is provided. That is, the inside flange 18b is accommodated in the inside flange accommodation portion 38 having a substantially U-shaped cross section and including the inside wall 24 and the inside molding portion 36.

A thin bridge portion 40 connecting the outer molding portion 30 and the outer side wall 22 is formed in the outer flange housing portion 32. Further, a thin bridge portion 42 for connecting the interior molding portion 36 and the interior side wall 24 is formed in the interior flange housing portion 38.

As shown in FIG. 3, the bridge portions 40 and 42 have a substantially rectangular plate-like cross section, and are spaced apart from and opposed to the bottoms of the flange accommodating portions 32 and 34, respectively. A plurality of slits 44 are provided at predetermined intervals in the lengths 40 and 42 of the glass run vertical portion 8 in the longitudinal direction of the glass run vertical portion 8 in series.

When the glass run vertical portion 8 is attached to the door sash portion 10, each flange 18a,
The tip of 18b abuts against these bridging portions 40 and 42, respectively, and the bridging portions 40 and 42 bend and deform. Here, the flanges 18 will be described in detail.
As shown in FIG. 4, the tips of a and 18b are notched, and a plurality of projections 46 are formed on each of the flanges 18a and 18b. And flange 1
At least one of the plurality of protrusions 46 formed on the flange 8b is engaged with the slit 44 of the bridge portion 40, and at least one of the plurality of protrusions 46 on the flange 18b is It is engaged with the slit 44.
Therefore, the length M of each slit is equal to the length N of the projection 46.
It is set to be longer than

In the glass run vertical portion 8, the main body 1
6. The outer lip 28 and the inner lip 34 are integrally formed by extrusion. Then, the extruded main body 16, outer lip 28 and inner lip 34 are attached to the outer molding section 30, the inner molding 3
6 and both bridge portions 40 and 42 are integrated by die molding.

That is, as shown in FIG. 5, the glass run vertical portion 8 is formed by integrally extruding the main body portion 16, the outer lip 28 and the inner lip 34 with the molds 48 to 5.
5 and cores 56 and 57, and
0, the vehicle interior molding 36 and both bridge portions 40 and 42 are formed by molding.

The outer flange housing portion 32 is formed by the mold 48 and the core 56, and the mold 49 and the core 5
7 form a vehicle interior flange accommodating portion 38.

The cores 56 and 57 have recesses 56 into which the tips of the projections 48a and 49a provided on the dies 48 and 49 are fitted.
a and 57a are formed respectively. These recesses 56
The a and 57a are formed at predetermined intervals along the longitudinal direction of the glass run vertical portion 8, and are formed relatively shallow with respect to the protruding lengths of the projections 48a and 49a. Therefore, between the core 56 and the mold 48 and between the core 57 and the mold 49.
Between them, bridge portions 40 and 42 are formed, respectively.
Each slit 44 is formed by the base end side of the convex portions 48a, 49a that do not fit into the concave portions 56a, 57a.

The glass run vertical portion 8 thus configured
In the sash section 10, the glass run vertical section 8
Is attached, the bridge portions 40 and 42 are connected to the flange 1
The distal ends of the flanges 8a and 18b are pressed and deformed toward the bottom walls of the flange housing portions 32 and 38, respectively.

As the bridge portions 40 and 42 flex as described above, the tip of the outer molding portion 30 falls down toward the outer flange 18a, and the tip of the inner molding portion 36 becomes the inner flange. It falls down toward 18b.

Therefore, even if the entire shape of the glass run vertical portion 8 is deformed from the initial assembled state by, for example, being exposed to the scorching sun in summer, the tip of the outer molding portion 30 is moved from the outer flange 18a to the inner molding portion. It is possible to reliably prevent a so-called mouth opening in which the tip of 36 is separated from the inside flange 18b, and the external shape is not deteriorated. Further, water does not intrude from between the tip of the outer molding portion 30 and the outer flange 18a, and no wind noise is generated from the opened portion.

Similarly, even if the bottom wall 26 is bent and deformed toward the channel 21 by the contact of the window glass 6 with the bottom wall 26 (see the window glass and the bottom wall indicated by broken lines in FIG. 1). That is, it is possible to reliably prevent a so-called mouth opening in which the tip of the outer molding portion 30 is separated from the outer flange 18a and the tip of the inner molding portion 36 is separated from the inner flange 18b.

The projections 46 of the flanges 18a, 18b fit into the slits 44 formed in the bridge portions 40, 42, respectively. The displacement can be reliably prevented.

Further, by providing a plurality of slits 44 in each of the bridging portions 40, 42, the door sash portion 10
When attaching the glass run vertical part 8 to the
The reaction force of the bridge portions 40 and 42 received by the bridge portions 8a and 18b can be reduced, and the workability of attaching the glass run vertical portion 8 to the door sash portion 10 is not impaired.

It is to be noted that all the slits 44 provided in each of the bridging portions 40 and 42 are not necessarily provided with each of the flanges 18.
Since there is no need to engage the projections 46a and 18b, it is not necessary to provide the same number of projections 46 on the flanges 18a and 18b as the number of slits 44 provided on the bridges 40 and 42. In other words, each flange 18a, 18
b are provided on each of the bridge portions 40, 42.
May be provided so as to be equal to or less than the number of the slits 44 provided in the base plate.

Hereinafter, other embodiments according to the present invention will be described. Note that the same components as those in the first embodiment described above are denoted by the same reference numerals as in the first embodiment, and description thereof will be omitted.

FIG. 6 shows a second embodiment of the present invention. The second embodiment has substantially the same configuration as the first embodiment described above, but differs from the first embodiment only in the cross-sectional shape of the bridge portions 58 and 60. That is, the bridging portions 58, 60 are respectively connected to the flange accommodating portions 32, 38.
Is formed so as to be convex toward the bottom portion, and has a constant thickness and a substantially V-shaped cross section.

Therefore, the bridging portions 58, 60 are easily bent and deformed toward the bottoms of the flange accommodating portions 32, 38, and the workability of attaching the glass run vertical portion 8 to the door sash portion 10 is further facilitated.

Note that, also in the second embodiment, the glass run vertical portion 8 has the main body 1 as in the first embodiment.
6. The outer lip 28 and the inner lip 34 are integrally formed by extrusion, and the outer molding portion 30, the inner molding 36
The two bridge portions 58 and 60 are integrated by molding.

FIG. 7 shows a third embodiment of the present invention.

The third embodiment has substantially the same configuration as the first embodiment described above, but differs from the first embodiment only in the bridging portions 62 and 64. That is, the bridge portions 62 and 64 are formed intermittently along the longitudinal direction of the glass run vertical portion 8. In other words, a plurality of bridging portions 62, 64 spaced apart from each other along the longitudinal direction of the glass run vertical portion 8 are formed in each flange accommodating portion 32, 38.

When the glass run vertical portion 8 is attached to the door sash portion 10, the pair of adjacent bridging portions 62, 62 and the pair of adjacent bridging portions 64, 6 are provided.
The four flanges 18a, 18b
Are fitted.

Here, the bridging portions 62, 64 formed in the flange accommodating portions 32, 38 are arranged such that the distance P between the adjacent bridging portions is equal to the longitudinal direction of the glass run vertical portion 8 of each flange 18a, 18b. Is formed so as to be longer than the length N of the protruding portion 46 along.

Note that, also in the third embodiment, the glass run vertical portion 8 is similar to the first embodiment described above.
6. The outer lip 28 and the inner lip 34 are integrally formed by extrusion, and the outer molding portion 30, the inner molding 36
The bridge portions 62 and 64 are integrated by die molding.

In the third embodiment, similarly to the first embodiment, the outer molding portion 30 and the inner molding portion 3 are provided.
The opening of No. 6 is reliably prevented, and the external shape is not deteriorated. Further, water does not intrude from between the tip of the outer molding portion 30 and the outer flange 18a, and no wind noise is generated from the opened portion.

Further, the displacement of the vertical portion 8 of the glass run relative to the door sash portion 10 can be reliably prevented.

In the third embodiment as well, the cross-sectional shape of the bridge portions 62 and 64 is the same as in the second embodiment described above.
It can be formed to have a convex shape toward the bottom of each of the flange accommodating portions 32 and 38 and to have a constant thickness and a substantially V-shaped cross section.

In addition, for each discontinuous portion provided in each flange accommodating portion 32, 38, each flange 1
The projections 46 of the flanges 8a and 18b do not need to be engaged.
It is not necessary to provide for b. In other words, each flange 18
The protrusions 46 provided on the a and 18b may be provided so as to be equal to or less than the number of the discontinuous portions 66 provided on the flange accommodating portions 32 and 38.

In the above-mentioned glass run vertical portion 8 in the first to third embodiments, the main body 16, the outer lip 28, the inner lip 34, the outer molding 30, and the inner molding 36 are integrally formed by extrusion. Then, with respect to this extruded member, only the two bridge portions may be molded using the dies 48 to 55 and the cores 56 and 57 shown in FIG. Furthermore, the whole glass run vertical part 8 is
It is also possible to mold using the molds 48 to 55 and the cores 56 and 57.

FIG. 8 shows a fourth embodiment of the present invention.

The fourth embodiment has substantially the same structure as the above-described first embodiment, but differs from the above-described first embodiment only in the bridging portions 68 and 70. That is, the bridging portions 68 and 70 are formed over the entire length in the longitudinal direction of the glass run vertical portion 8, and are not provided with the slits 44 as in the first embodiment described above, but over the entire length in the longitudinal direction. And have the same cross-sectional shape. In this case, the projection 46 of each flange 18a, 18b does not directly engage with each of the bridging portions 68, 70 along the longitudinal direction of the glass run vertical portion 8, but the glass run vertical portion 8 is extruded. Becomes possible.

In the fourth embodiment, similarly to the first embodiment, the outer molding portion 30 and the inner molding portion 3 are provided.
The opening of No. 6 is reliably prevented, and the external shape is not deteriorated. Further, water does not intrude from between the front end of the outer molding portion 36 and the outer flange 18a, and no wind noise is generated from the opened portion.

Also in the fourth embodiment, the cross-sectional shape of each of the bridging portions 68 and 70 is convex toward the bottom of each of the flange accommodating portions 32 and 38 as in the second embodiment. It can be formed to have a constant thickness and a substantially V-shaped cross section.

In the fourth embodiment, it is not always necessary to provide the projection 46 at the tip of each of the flanges 18a and 18b.

In the first to fourth embodiments described above, the bridge portion is formed in both the outer flange housing portion 32 and the inner flange housing portion 38. Housing part 32 and car interior flange housing part 3
It is not always necessary to provide them on both of them, and it is also possible to provide them on only one of them according to the shape of the glass run vertical portion 8 or the like.

Further, the structure of the glass run upper side portion 12 can be obtained by using the structure of the glass run vertical portion 8 in each of the above-described embodiments.

Further, in each of the above-described embodiments, it is possible to implement even a structure in which the channel 21 is not provided in the door sash portion 10.

[0059]

According to the present invention, the leading end of the flange abuts on the bridging portion provided in the flange accommodating portion, and the bridging portion flexes and deforms, so that the leading end side of the molding portion of the flange accommodating portion is formed. It falls down toward the said flange, and the opening of the said molding part can be prevented reliably.

Further, according to the second and third aspects, the reaction force received by the flange from the bridge portion can be appropriately set, and the workability of mounting the flange to the flange accommodating portion is not impaired. In particular, if the bridge portion is formed as in claim 4, the workability of mounting the flange to the flange accommodating portion is further improved.

Then, according to claims 5 and 6,
The relative displacement of the flange accommodating portion along the longitudinal direction of the glass run with respect to the flange can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a sectional view of a glass run according to the present invention;
Sectional drawing of the glass-run vertical part in an Example.

FIG. 2 is a side view of a front door of the automobile.

FIG. 3 is a perspective view of a glass run vertical portion according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a distal end of a flange constituting a glass run accommodating portion to which the glass run according to the present invention is attached.

FIG. 5 is an explanatory view showing a mold structure when a vertical portion of a glass run is molded in a first embodiment.

FIG. 6 is a sectional view of a vertical portion of a glass run according to a second embodiment of the present invention.

FIG. 7 is a sectional view of a vertical portion of a glass run according to a third embodiment of the present invention.

FIG. 8 is a sectional view of a vertical portion of a glass run according to a fourth embodiment of the present invention.

FIG. 9 is a cross-sectional view of a conventional glass run.

[Explanation of symbols]

 2 ... Glass run 10 ... Door sash part 18 ... Flange 20 ... Glass run accommodation part 22 ... Outside wall 24 ... Inside wall 26 ... Bottom wall 30 ... Outside molding part 32 ... Outside flange accommodation part 36 ... Inside molding part 38 … Car interior flange housing part 40… bridge part 42… bridge part

Claims (7)

[Claims] 1. A glass run that is attached between a pair of opposed flanges provided on a door sash portion and seals an outer peripheral edge of a window glass, wherein a side wall of the glass run along the flange; A glass run having a flange portion having a substantially U-shaped cross-section, comprising a molding portion projecting from a tip end, wherein the flange is accommodated in the flange accommodation portion; wherein the flange accommodation portion has a bottom portion of the flange accommodation portion. A glass run characterized by being formed with a bridging portion that faces away from each other and connects the side wall and the molding portion in the flange accommodating portion. 2. The glass run according to claim 1, wherein at least two bridge portions are formed at intervals in a longitudinal direction of the glass run. 3. The grass run according to claim 1, wherein a plurality of slits are provided in the bridge portion along a longitudinal direction of the grass run. 4. The bridge according to claim 1, wherein the bridge is formed to have a substantially V-shaped cross section so as to project toward the bottom of the flange accommodating portion. The grass run described. 5. The front end of the flange is formed with a protruding portion located between a pair of adjacent bridging portions and fitted to the pair of adjacent bridging portions. 3. The glass run mounting structure according to 2. 6. The glass run mounting structure according to claim 3, wherein a projection is formed at a tip of the flange so as to fit into a slit provided in the bridge. 7. The glass run according to claim 5, wherein the bridge portion is formed to have a substantially V-shaped cross section so as to project toward the bottom of the flange accommodating portion. Mounting structure.