JPH08337120A - Vehicular glass run - Google Patents

Abstract

PURPOSE: To lower cost through reduction of an area required for surface treatment, and maintain the smooth vertical motion of window glass. CONSTITUTION: Bulge sections 16 and 17 projected toward window glass more than others are formed on the area of tips 14 and 15 in contact with window glass. Thus, even when the window glass is laterally dislocated and either the lip 14 or 15 is substantially deformed, due to assembling dispersion, more surface treatment than required is not needed, as only surface of the whole or part of the bulge section 16 or 17 comes in contact with the window glass. According to this construction, a surface treatment area can be reduced, compared with the conventional case, and an unexpected increase in the area of contact with the glass window can be avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run for guiding window glass of an automobile. More specifically, the present invention relates to a glass run for an automobile capable of reducing the range of surface treatment of the contact surface with a window glass.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
As is well known, the door 101 of No. 00 is provided with a window glass 102 that can be raised and lowered, and a window frame 103 is provided to protect the window glass 102 when the window glass 102 is moved up and down.
Although not shown, a groove for a glass run is provided in the window frame 103. For example, as shown in the cross section of FIG. 5 (the window frame is omitted), the window glass 102 is guided when the window glass is moved up and down. In order to prevent rainwater or dust from entering the vehicle from around the window glass 102 or the window glass 102, a glass run 104 formed of an elastic elastic material such as hard rubber or hard synthetic resin is provided inside the window frame 103. It is properly fitted in the groove.

The grass run 104 is provided with side portions 106 and 107 on both sides of an upper bottom portion 105 in the figure. Lips 108 and 109 are provided at the tips of the side portions 106 and 107, respectively, and are formed by appropriately curving and extending toward the inside where both side portions face each other. Lip 108,
The contact surface of the window glass 102 with the window glass 102 is
In order to reduce the friction with, a surface treatment such as urethane coating or flocking is applied.

Then, as shown in FIG. 5, the window glass 102
Is raised, it is placed between the lips 108 and 109 on both sides as shown by the chain double-dashed line in the figure, and the lip 10
8 and 109 elastically deform in a direction in which they are separated from each other, and the tips thereof are pressed against the window glass 102 by the elastic restoring force. This allows the window glass 102 and the lips 108, 1
There is almost no gap between the tip of the 09 and the tip, so that rainwater and dust can be prevented from entering from here, and the sealing property is maintained.

[0005]

DISCLOSURE OF THE INVENTION By the way, the window glass 1
02 naturally has variations in construction,
For example, as shown in FIG. 6, it may be displaced to the outside of the vehicle (arrow A side), or vice versa. When the window glass 102 is laterally displaced in this way, when the conventional glass run 104 is used, the lip 109 on which the window glass 102 is displaced is the window glass 102.
Then, the window glass 102 is deformed by being pushed by and is contacted with the window glass 102 up to the portion close to the protruding base portion. That is, the lip 10
9 contacts the window glass 102 over a wide range. When such a state occurs, there is a problem in that the friction between the window glass 102 and the lip 109 increases, and the lifting operation of the window glass 102 is hindered.

Further, in the conventional glass run 104, even if the window glass 102 is displaced laterally, it can be brought into contact with the window glass 102 so that friction with the lips 108 and 109 and noise can be reduced. It is necessary to perform the surface treatment over a range W having a certain property, that is, a wide range from the tips of the lips 108 and 109 to the vicinity of the roots. However, such a wide range of surface treatment has a problem that the treatment work is troublesome and the cost is increased.

The present invention has been made in view of the above-mentioned problems, and it is possible to maintain the sealing property even when the surface treatment range of the lip is reduced, which enables cost reduction.
Moreover, it is an object of the present invention to provide a glass run for an automobile that can also stabilize the vertical movement of the window glass.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a glass run for guiding a window glass of an automobile, in which a lip facing the window glass is in contact with the window glass at the window glass side. The present invention can be achieved by a glass run for an automobile, characterized in that an overhanging portion projecting toward the window is provided over a predetermined range, and a contact surface of the overhanging portion with the window glass is surface-treated.

[0009]

According to the glass run for an automobile of the present invention, even when the window glass is displaced to the inside or the outside of the vehicle due to the variation in the building, only the protruding portion of the lip contacts the window glass. Therefore, since it is only necessary to perform the surface treatment on the surface of the overhang portion, it is not necessary to perform the surface treatment more than necessary, the surface treatment area can be reduced, and the cost can be reduced. Further, the contact area between the lip and the window glass can be made constant at all times, and since the contact area does not increase more than necessary, it does not hinder the lifting operation of the window glass and keeps the lifting and lowering of the window glass smooth. You can

[0010]

EXAMPLES Examples of glass runs for automobiles according to the present invention will be described below with reference to FIGS. FIG. 1 is a sectional view of a glass run for an automobile according to the present invention, and FIG.
FIG. 3 is a cross-sectional view showing a state where the window glass is arranged at the center of the gap between the lips, and FIG. 3 is a cross-sectional view showing a state where the window glass is laterally displaced from the center of the gap between the lips.

As shown in FIG. 1, a glass run 1 for an automobile according to the present invention is fitted into a window frame 103 of an automobile 100 (FIG. 4), and when the window glass 102 is raised, rainwater, dust and the like are intruded into the interior of the automobile. Used to prevent entry into the. The glass run 1 for automobiles is made of a hard elastic material such as hard rubber or hard synthetic resin, and has a bottom portion 1
Side portions 12 and 13 are provided on both sides of 1. Lips 14 and 15 of appropriate length that bend inward are provided at the tips of the side portions 12 and 13.

On the surfaces of the lips 14 and 15 facing the window glass 102, overhangs 16 and 17 projecting toward the window glass 102 over a predetermined range L1 and L2 (on the surface facing the window glass 102). Is projected to the glass side with a gap.). Although FIG. 2 illustrates the case where the overhanging portions 16 and 17 are thick and stepped, the overhanging portions 16 and 17 are gradually thickened from the root side of the lips 14 and 15 toward the tip side. Alternatively, it can be formed by forming a step shape with the same thickness as other portions. The surfaces of the overhang portions 16 and 17 are subjected to surface treatment such as urethane coating or flocking in order to reduce the coefficient of friction and to minimize the gap with the window glass 102 to improve the sealing property. Further, polyethylene or the like having a small friction coefficient may be laminated by coextrusion on the protruding portion of the lip to be integrated.

In this glass run 1 for an automobile, when the window glass 102 rises as shown in FIG. 2, the center 19 of the window glass 102 is arranged at the center 18 of the interval between the lips 14, 15, that is, When the window glass 102 is placed in a normal position without being displaced, the lips 14 and 15 on both sides are pressed by the window glass 102 in a direction away from each other and elastically deformed, and the elastic restoring force causes the window glass 102 to move. It can be pressed.

At this time, since the projecting portions 16 and 17 project toward the window glass 102 side as compared with the other portions, the window glass 102 comes into contact with the entire surface of the projecting portions 16 and 17 or only a part of the surface thereof. This can prevent rainwater, dust, and the like from entering the vehicle from around the window glass 102.

Further, in the glass run 1 for an automobile, as shown in FIG. 3, when the window glass 102 rises, the center 19 of the window glass 102 is displaced from the center 18 of the interval between the lips 14, 15. May be done. That is, if the window frame 102 or the window glass is displaced (displaced) due to a variation in construction or long-term use, and the window glass 102 is displaced to the outside of the vehicle (arrow A direction side), for example, The outer lip 15 is largely elastically deformed, and the elastic deformation amount of the inner lip 14 is reduced.

In this case, in the conventional case, the lip that has undergone a large elastic deformation hits the window glass 102 and the contact surface becomes considerably wider than when the window glass 102 is in the normal position. In the glass run 1, the whole or a part of the surface of the overhanging portion 17 of the lip 15 which is largely elastically deformed is only in contact with the window glass 102, and the overhanging base portion of the lip 15 is in contact with the window glass. The situation can be avoided.

Therefore, by appropriately setting the ranges L1 and L2 of the projecting portions 16 and 17, even when the window glass 102 is laterally displaced due to the unevenness of the building, the projecting portions 16 and 17 and the window glass 102 are separated from each other. The contact area can be made smaller than in the conventional case. As a result, the area required for the surface treatment can be reduced, and the cost can be reduced. Further, since the contact area with the window glass 102 does not increase more than necessary, an unexpected increase in frictional force can be avoided, and the window glass 102 can be smoothly moved up and down without obstructing the operation.

In the above embodiment, the overhanging portion 16,
The boundary D between 17 and the other part of the lip surface facing the window glass 102 is formed with a gap that rises at a substantially right angle, but the present invention is limited to such a form. However, the structure may be appropriately inclined.
Further, the application site is a roof portion (XX cross section portion) of the vehicle,
The present invention can be applied to both the center pillar portion (Y-Y cross section) and the front pillar portion (ZZ cross section), but is particularly effective when applied to the center pillar portion or the front pillar portion.

[0019]

As described above, according to the glass run for an automobile of the present invention, the protruding portion projecting toward the window glass extends over a predetermined range at the contact portion of the lip facing the window glass with the window glass. The surface of the protruding portion that contacts the window glass is surface-treated. Therefore, according to the glass run for an automobile of the present invention, even when the window glass is laterally displaced due to the unevenness of the building, only the surface of the overhang portion comes into contact with the window glass. It is not necessary to perform surface treatment more than necessary, and the cost can be reduced. In addition, since it is possible to avoid an unexpected increase in the contact area with the window glass and ensure stable contact between the lip and the window glass, it is possible to keep the window glass up and down smoothly without hindering the window glass up and down operation. It will be possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the structure of a glass run for an automobile according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which a window glass is arranged at a regular position.

FIG. 3 is a cross-sectional view showing a state where the window glass is displaced.

FIG. 4 is a side view of an automobile.

5 is a cross-sectional view taken along the line XX of FIG. 4, showing the configuration of a conventional glass run for an automobile.

FIG. 6 is a cross-sectional view showing a state when the window glass of the conventional example is displaced.

[Explanation of symbols]

 1, 104 Automotive glass run 11, 105 Bottom part 12, 13, 106, 107 Side part 14, 15, 108, 109 Lip 16, 17 Overhanging part 18 Center of lip gap 19 Center of window glass 100 Car 101 Door 102 Window glass 103 Window frame A Outer direction of vehicle D Boundary between overhang and other lip surface L1 Overhang range L2 Overhang range W W glass and lip contact range

Claims (1)

[Claims] 1. An automobile glass run for guiding an automobile window glass, wherein a contact portion of a lip facing the window glass with the window glass has an overhanging portion projecting toward the window glass in a predetermined range. A glass run for an automobile, wherein the contact surface of the overhanging portion with the window glass is surface-treated.