JP3370824B2 - Car door belt molding - Google Patents

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 lifted from a door body of an automobile or the like, a rubber door belt molding is laid along the upper edge of the door body, and the door belt molding is used as the door glass. I try to make it adhere to. By providing such a door belt molding, it is possible to prevent rainwater and the like from entering the door body.

FIG. 3 is a sectional view of a conventional automobile door belt molding. FIG. 4 is a cross-sectional view when using a conventional automobile door belt molding. In FIG. 3, the door belt molding 1 has a solid lip (first lip) 2 and a hollow lip (second lip) 3 at the top and bottom, respectively. As shown in FIG. 4, the door belt molding 1 includes a door outer member 101.
The door lip 2 is laid along the upper edge of the door body 100 including the door inner 102, and the solid lip 2 and the hollow lip 3 move up and down from the door body 100 as illustrated.
It is designed to make elastic contact with the outside of 00.

[0004]

By the way, when the door glass 200 is raised and lowered, in the conventional door belt molding 1, the contact portion 3a of the hollow lip 3 comes into contact with the surface of the door glass 200 as shown in FIG. Deform. Since the outer surface of the hollow lip 3 is elastically formed in a loose arc shape as a whole, the contact portion 3a is formed in a relatively wide area. At this time, a so-called "squeaking" noise of the door belt molding 1 may occur. This squeal phenomenon is caused by the hollow lip 3 contacting the ascending / descending door glass 200.
Vibration is the main cause. The conventional door belt molding 1 is formed to be relatively thin as a whole, and the door glass 200
On the other hand, since the contact portion 3a of the hollow lip 3 is in contact with each other as described above, the hollow lip 3 vibrates in a manner substantially proportional to the contact area, and thus the above-mentioned squeaking easily occurs. Was there.

In order to prevent such a squeal, it is considered to prevent vibration of the hollow lip 3 by increasing the thickness of the portion of the hollow lip 3 that elastically contacts the door glass 200 to increase the rigidity. To be However, the bending load of the lip 3 increases due to the increased thickness, which affects the sliding resistance of the door glass. Further, if the wall thickness is increased, the bottom of the lip (that is, the pressing of the lip to the inner side opposite to each other as shown by 3b in FIG. 4) is likely to occur, and in that case, the reaction force to the door glass 200 due to the bottom suddenly increases. It is possible to increase to.

In view of the above points, the present invention prevents the occurrence of squeal, avoids an increase in bending load due to thickening of the lip, and avoids bottoming of the lip. The purpose is to provide a belt molding.

[0007]

In order to achieve the above object, according to the door belt molding for an automobile of claim 1, the door belt molding is laid along the upper edge portion of the door body and lifted up and down from the door body. Has a hollow lip that elastically contacts the door glass,
The door glass side of the hollow lip is formed in the thick portion, the hollow
The lip extends diagonally upward so as to surround the hollow part.
The thick part located on the door glass side and the part on the bottom side are connected.
It is constructed in contact with each other, and is located on the door glass side.
The thick portion is thinned by forming a recess on the outer surface of the central region excluding the base end region and the front end region that comes into contact with the door glass, and is hollow by raising and lowering the door glass.
The part where the part is crushed and the bottom side part is located on the door glass side
It is characterized in that a gouged portion is formed on the inner surface of the central lip on the hollow portion side so as not to bottom . Further, in the automobile door belt molding according to claim 2, the hollowed portion is formed in a central region of a hollow portion-side inner surface of the hollow lip ,
This makes the cross section of the central region look like a gourd.
It is characterized by being configured .

[0008]

According to the present invention, the portion of the hollow lip on the door glass side is formed as a thick portion, and the outer surface of the central region excluding the proximal end region and the distal end region of the thick portion is thinned. As a result, when the door glass moves up and down, the thin portion in the central region of the outer surface of the hollow lip is prevented from coming into contact with the door glass, and only the tip region of the hollow lip is almost in line contact with the door glass to be deformed. . As a result, the cross-sectional deformation of the lip door glass in the up-and-down direction is reduced, and the vibration of the lip is suppressed to prevent squeaking.

Further, by forming a gouged portion on the hollow portion side of the thick portion of the hollow lip, preferably at substantially the center, since this region is thinned, an increase in the bending load of the lip can be avoided. In addition, the bottom of the hollow lip on the opposite side can be eliminated, and the increase of the reaction force on the door glass can be suppressed.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of an automobile door belt molding of the present invention. FIG. 2 is a sectional view of the automobile door belt molding of FIG. 1 when used. In FIG. 1, the door belt molding 10 includes a solid lip 12 and a hollow lip 13 vertically through a connecting portion 11, and a hook portion 14 for engaging with the door outer 101 made of a rubber material. It is formed integrally. 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 12 and 13 is elastically contacted with the outside of the door glass 200 that moves up and down from the door body 100.

Here, the hollow lip 13 is formed by connecting a portion 13a located on the door glass 200 side and a portion 13b on the bottom side so as to surround the hollow portion S in FIG. The portion 13a of the
3a ₁ , a central region 13a ₂ and a tip region 13a ₃ .

In this embodiment, in the portion 13a of the hollow lip 13 located on the door glass side, the proximal end region 13a ₁ and the distal end region 13a ₃ are formed to have a large thickness on the outer surface side. The outer surface side of the central region 13a ₂ is formed thinner than the end regions. That is, as shown in FIG. 1, the outer surface of the central region 13a ₂ is recessed so as to present a gentle concave portion, while the tip region 13 is
a ₃ is formed so as to project to the door glass side, and at this tip end region 13a ₃ , as shown in FIG.
To come into contact with.

Further, in the portion 13a of the hollow lip 13 on the door glass side, a part of the inner surface located on the hollow portion S side is formed as a recessed portion 13a ₄ so as to have a concave shape. The gouged portion 13a ₄ is formed substantially at the center of the inner surface, like the recess of the central region 13a ₂ on the outer surface side. Therefore, the entire shape of the portion 13a on the door glass side of the hollow lip 13 has a constriction at the substantially central portion, and the cross section has a gourd-like shape.

In the door belt molding 10 constructed as above, when the door glass 200 is raised or lowered, the solid lip 12 and the hollow lip 13 come into contact with the surface of the door glass 200 as shown in FIG. To transform. At this time, rainwater or the like is wiped by elastically contacting the door glass 200 at the tip region 13a ₃ of the portion 13a of the thick lip 13 located on the door glass side.
At this time, the central region 13a ₂ on the outer surface side is formed thinner than the other regions, and the outer surface is recessed by presenting a recessed portion, so that the central region 13a ₂ in the central region 13a ₂ is closed.
No contact with 0. Therefore, the hollow lip 12
Has a smaller contact area with the door glass 200 and is elastically contacted by a substantially linear contact, so that vibration of the hollow lip 13 which causes squeaking is less likely to occur, and the thickness of the hollow lip 13 at the base end region 13a ₁ is increased again. Since it is fleshed, it becomes difficult for the vibration to be transmitted to the base end region, and it is possible to effectively prevent squeaking.

Further, in the portion 13a located on the door glass side of the hollow lip 13, since the gouged portion 13a ₄ is formed on the inner surface located on the hollow portion S side, the hollow portion S is moved up and down by the door glass 200. Even if is crushed, it does not bottom to the bottom surface side portion 13b that faces the hollow portion S, and a slight gap A is formed as shown in FIG. 2 to prevent bottoming of the lip. To be done. This makes it possible to prevent the reaction force from increasing on the door glass due to the bottom of the lip even if the door glass is installed with high accuracy. As described above, in addition to being able to prevent vibration caused by the contact of the hollow lip 13 with the door glass 200 to prevent the generation of squeaking, the hollow lip 13 is provided with a gouged portion 13a ₄ on the hollow portion S side. Therefore, even when the hollow lip 13 is bent due to a construction error,
The gouged portion 13a ₄ causes a gap A to eliminate the bottoming of the lip, and it is possible to prevent the deflection load of the lip from increasing.

[0016]

As described above, according to the present invention, in the door belt molding, the central region of the outer surface of the hollow lip on the door glass side is thinned, and the hollowed inner surface is formed with a gouged portion. As a result, the vibration of the lip can be suppressed as much as possible and the squeaking can be effectively prevented. In addition, the rigidity of the hollow lip can be increased by increasing the thickness of the hollow lip while eliminating the bottoming of the lip without being affected by a building error or the like.

[Brief description of drawings]

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

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

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

FIG. 4 is a cross-sectional view when using a conventional automobile door belt molding.

[Explanation of symbols]

10 Door Belt Mold 12 Solid Lip 13 Hollow Lip 13a Portion 13a _{1 of} Hollow Lip Located on Door Glass Side 13a ₂ Base Region of Hollow Lip on Door Glass Side 13a ₂ Central Region 13a _{3 of} Hollow Lip on Door Glass Side portion 100 door body on the bottom side of the gouged portion 13b hollow lip of distal region 13a ₄ of the hollow lip door glass portion in the surface of the door glass portion of the lip 101 Doaauta 102 door inner 200 door glass a gap S hollow portion

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Actual flat 6-67136 (JP, U) Actual flat 5-86632 (JP, U) Actual flat 5-63933 (JP, U) Actual SHO 61- 66012 (JP, U) Actual development Sho 59-110221 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60J 10/04 B60R 13/02 B60R 13/06

Claims (2)

(57) [Claims] 1. A door belt molding laid along an upper edge of a door body, having a hollow lip elastically contacting a door glass rising and falling from the door body, and a door glass side of the hollow lip being a thick portion. And the hollow lip is slanted upward so as to surround the hollow portion.
Thick part located on the side of the door glass and the part on the bottom side
Of the thick portion located on the door glass side , which is configured by connecting the minute and
With thinning by forming a recess on the outer surface of the <br/> central region within the tip region in contact with the proximal region and a door glass was divided, the hollow portion by the lifting of the door glass is ulcers
The part where the bottom side is located on the door glass side
A door belt molding for an automobile, characterized in that a hollow portion is formed on the inner surface of the hollow lip on the hollow portion side so as not to bottom . 2. The hollowed portion is formed in the central region of the inner surface of the hollow lip on the hollow portion side , whereby the central region is cut off.
The door belt molding for an automobile according to claim 1, wherein the surface is configured to have a gourd shape .