JPH0920141A - Door belt molding for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door belt molding for an automobile which prevents the occurrence of squeak. SOLUTION: This door belt molding has a solid lip 11 and a hollow lip 12, which are laid along the top margin of the door body and elastically contact with the door glass going up and down from the door body, and the tip 12a on the side of the door glass 200 of the hollow lip 12 is made projecting. Moreover, the base of 12b of the projecting tip 12a in the hollow lip 12 is made recessed. The recessed base 12b is provided under the projecting tip 12a. By making the tip 12a on the door glass 200 side of the hollow lip 12 projecting, the hollow lip 12 contacts, at a line, with the door glass 200, and the occurrence of squeak can be prevented by suppressing the lip oscillation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door belt molding which is elastically contacted with a door glass at an upper edge portion of a door body such as a side door in a vehicle such as a passenger car.

[0002]

2. Description of the Related Art In a side door or the like in which a door glass is moved up and down from a door body, a rubber door belt molding is generally laid along the upper edge of the door body. The door belt is configured so as to be in close contact with the door glass, and by providing such a door belt molding, rainwater and the like are prevented from entering the door body.

FIG. 3 and FIG. 4 respectively show an example of the structure of a conventional door belt molding and a state when it is used.
In FIG. 3, the door belt molding 1 includes a solid lip (first lip) 2 and a hollow lip (second lip) 3 at the top and bottom, respectively. The door belt molding 1 includes a door outer 101 and a door inner 1 as shown in FIG.
It is laid along the upper edge of the door body 100 made of 02, and the lips 2 and 3 are elastically contacted with the outside of the door glass 200 that moves up and down from the door body 100 as shown in the figure.

[0004]

By the way, in the conventional door belt molding 1, when the door glass 200 is moved up and down,
In particular, the contact portion 3a of the hollow lip 3 shown in FIG. 3 contacts the surface of the door glass 200 to be deformed as shown in FIG. 4, but at this time, a so-called “squeaking” noise of the door belt molding 1 is generated. It may occur. This squeal phenomenon is mainly caused by the vibration of the hollow lip 3 which comes into contact with the ascending / descending door glass 200. In the conventional door belt molding 1, since the contact portion 3a of the hollow lip 3 is in contact with the door glass 200 over a surface, that is, in a wide area, the hollow lip 3 vibrates in a manner substantially proportional to the contact area. It's easy to do. Also, the contact portion 3a of the hollow lip 3
The direct contact with a large area causes vibration, and squeaking easily occurs.

In view of the above points, an object of the present invention is to provide an automobile door belt molding capable of effectively preventing the occurrence of squeal.

[0006]

A door belt molding for an automobile according to the present invention is a door belt molding that is laid along the upper edge of a door body and has a lip that elastically contacts a door glass that moves up and down from the door body. A hollow lip in contact with the door glass is provided, and a front end portion of the hollow lip on the door glass side is formed in a convex shape.

Further, in the automobile door belt molding of the present invention, the base portion of the convex tip end portion of the hollow lip may be formed in a concave shape. Further, in the automobile door belt molding of the present invention, the concave base portion of the hollow lip may be provided below the convex tip portion.

[0008]

According to the present invention, by forming the tip of the hollow lip on the door glass side in a convex shape, the hollow lip makes elastic contact with the door glass almost in line contact only by the convex tip. In this way, it is possible to effectively prevent the squeal from occurring by avoiding the contact of the hollow lip with the surface of the door glass and suppressing the vibration of the lip that causes the squeaking as much as possible.

The base of the convex tip portion of the hollow lip is formed in a concave shape, and the concave base portion is provided below the convex tip portion. By providing the concave base portion together with the convex tip portion in this way, even if the lip bends with respect to the door glass due to a construction error, etc. Line contact is possible.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an automobile door belt molding according to the present invention will be described below with reference to FIGS. 1 and 2 by using the same reference numerals for members substantially the same as or corresponding to those of the conventional example.

FIG. 1 and FIG. 2 respectively show a structural example of the door belt molding 10 in this embodiment and a state when it is used. In FIG. 1, the door belt molding 10
Has a solid lip 11 and a hollow lip 12 at the top and bottom. The door belt molding 10 is laid along the upper edge portion of the door body 100 including the door outer 101 and the door inner 102 as in the case of the conventional example. As shown in FIG. 2, each of the lips 11 and 12 is elastically contacted with the outside of the door glass 200 that moves up and down from the door body 100.

In the door belt molding 10 of this embodiment, the tip portion 12 of the hollow lip 12 on the door glass 200 side.
a is formed in a convex shape. Further, more preferably, the base 12b of the convex tip 12a of the hollow lip 12 is formed in a concave shape. And this concave base 12b is preferably
It is provided below the convex tip portion 12a.

In the door belt molding 10 constructed as above, when the door glass 200 is moved up and down, the hollow lip 12 is deformed by coming into contact with the surface of the door glass 200 as shown in FIG. At this time, the hollow lip 12 is brought into line contact with the door glass 200 by forming the tip portion 12a of the hollow lip 12 on the door glass 200 side in a convex shape. By thus making the hollow lip 12 line contact with the door glass 200, it is difficult to transmit the vibration of the lip 12 that causes a squeal to the root thereof, and it is possible to prevent the squeaking.

By effectively reducing the contact area of the hollow lip 12 with the door glass 200 as described above, it is possible to prevent squeaking. Furthermore, in this case,
A concave base portion 12b is set below the convex tip portion 12a of the hollow lip 12. Such a concave base 12b
By providing the hollow lip 1 due to installation errors, etc.
Even when 2 is bent, the concave base portion 12b can escape the contact with the door glass 200, and therefore,
The door glass 2 is always made only by the tip 12a of the hollow lip 12.
00 in line contact.

[0015]

As described above, according to the present invention, in this type of door belt molding, the hollow lip is provided with the convex tip portion and the concave base portion is provided at a suitable position so that the lip vibration is prevented. Squeaking can be effectively prevented by suppressing it as much as possible. Further, there is an advantage that the hollow lip can always be brought into line contact with each other without being affected by a building error and the like, and an excellent squeal preventing effect is exhibited. Then, by eliminating the squeaking of the hollow lip, it is possible to ensure comfort when riding.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of an automobile door belt molding according to the present invention.

FIG. 2 is a cross-sectional view of a vehicle door belt molding according to an embodiment of the present invention during use.

FIG. 3 is a cross-sectional view of a conventional automobile door belt molding.

FIG. 4 is a cross-sectional view of a conventional automobile door belt molding when in use.

[Explanation of symbols]

 10 Door Belt Mold 11 Solid Lip 12 Hollow Lip 12a Convex Tip 12b Concave Base 12b 100 Door Body 101 Door Outer 102 Door Inner 200 Door Glass

Claims (3)

[Claims] 1. A door belt molding laid along an upper edge of a door body, the door belt molding having a lip elastically contacting a door glass rising and falling from the door body, wherein the door belt molding includes a hollow lip at least in contact with the door glass.
A door belt molding for an automobile, wherein a front end portion of the hollow lip on the door glass side is formed in a convex shape. 2. The door belt molding for an automobile according to claim 1, wherein a base portion of the convex tip portion of the hollow lip is formed in a concave shape. 3. The door belt molding for an automobile according to claim 2, wherein the concave base portion of the hollow lip is provided below the convex tip portion.