JP3159019B2 - Car door glass run - 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 glass run mounted along a door frame of an automobile.

[0002]

2. Description of the Related Art As shown in FIG. 2, a door glass run (hereinafter simply referred to as "glass run") 3 is mounted along the inner periphery of a door frame 2 of a door 1 of an automobile. The glass run 3 includes an extruded member (hereinafter, referred to as a horizontal member) 3A into which an upper edge of the door glass 4 is inserted when the door glass is closed, and an extruded member (hereinafter, referred to as a vertical member) that guides a side edge of the ascending and descending door glass 4. (Referred to as a member) 3B and a molding corner 3C formed by connecting these members by molding.

The horizontal member 3A and the vertical member 3B generally have basically the same structure.
As shown in (A), both side walls 3 of a main body 31 having a U-shaped cross section are shown.
Inner lip 3 sandwiching the door glass from the tip of 2,33
4 and 35 are extended, and are provided so as to extend outward from the front end and cover lips 36 and 37 sandwiching the door frame 2 with the side walls 32 and 33. The molding corner 3C has a structure for smoothly connecting the two members 3A and 3B. The molding corner 3C is formed by setting the ends of the horizontal member 3A and the vertical member 3B in the cavity of the mold with the ends facing each other, and injecting the molding material into the cavity.

Incidentally, it is desirable that the length of the molding corner 3C is as short as possible. The reason is 1
One reason is that the extruded material and the molded material have different colors and luster, so that if the molded corner is large, the appearance is impaired.
Another reason is that the inner lip of the extruded material is subjected to a lubricity treatment by spraying urethane or silicone resin on the glass contact side surface to improve the sliding property of the glass continuously during extrusion. However, lubrication treatment is not generally performed in the corners of the mold because the treatment is difficult. Therefore, if the molding corner is long, the sliding resistance immediately before the door glass is completely closed increases.

On the other hand, in a door frame, it is quite troublesome to bend a corner having a small radius of curvature.
Particularly in a press door, as shown in FIG. 3, there is a limit in narrowing down the inner plate 21 having an uneven surface.
In many cases, it is formed with a larger radius of curvature as shown by the broken line B in FIG.

[0006] In the above-described circumstances, in the molding connection of the corner portion of the glass run, as shown in FIG. 1A, the main body portion 31 including the cover lip 37 on the outside of the vehicle must be formed and connected in a short range. The side wall 32 and the cover lip 36 sandwiching the door frame inner plate 21 are adapted to have a large radius of curvature of the inner plate 21 over a long range while maintaining a good appearance and extending the smoothness processing range. A molded part is formed.

In this case, the horizontal member 3A and the vertical member 3
In FIG. 3B, as shown in FIG. 3, the cover lip 36 is cut from the base in a predetermined range from the base with the cut surface 5 in the vertical direction, and at the base of the inner lip 34, the enlarged side wall 32 'formed by molding is used. The subsequent cover lip 36 'is connected.

[0008]

However, the inner lip 34 of the extruded horizontal member 3A and the vertical member 3B,
Since a slip layer is formed on the surfaces 341 and 351 of the door glass contact side 35 from the root to the tip by spraying a lubricant or the like, the inner lip is formed when the extended side wall 32 'is formed and connected. Incomplete bonding to 34. For this reason, conventionally, the base portion of the inner lip 34 has been shaved with a glider or the like and rough surface processing has been performed before forming and connecting the mold, resulting in poor workability.

Accordingly, the present invention provides a glass-run molding connection structure in which an enlarged side wall on the vehicle interior side can be completely adhered to the base of an inner lip without performing a roughening process as in the prior art. The task was to do.

[0010]

According to the present invention, as shown in FIG. 1, an extruded horizontal member 3A and an extruded member 3B are connected by molding to form a corner 3C, and the molded corner 3C is In a glass run in which the inner side wall and the cover lip have a large radius of curvature in accordance with the inner plate of the door frame, the corner of the glass run which is the root of the cover lip 36 near the ends of the horizontal member 3A and the vertical member 3B. The cover lip 36 is cut off by cutting the portion obliquely, and the enlarged side wall 32 ′ is formed and connected to the oblique cut surface 6 by molding. The connection at the cut surface 6 on which the lubrication treatment has not been performed as described above allows the enlarged side wall 32 ′ to be connected.
Can be completely formed and connected to the horizontal member 3A and the vertical member 3B.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a horizontal member 3A and a vertical member 3B of a glass run 3 mounted on a door frame 2 (FIG. 2) have substantially the same structure, and have a U-shaped cross section. Inner lip 3 sandwiching the periphery of door glass 4 from both sides in opposite directions from both ends of opposed side walls 32 and 33 of portion 31
Cover lips 36, 37 extend outward from the above-mentioned distal end, and the side walls 3 are extended.
2 and 33, the inner plate 21 and the outer plate 22 of the door frame 2
The edge of is sandwiched. Both members 3A and 3B are extruded rubber bodies, and a lubricating layer is formed on the outer surfaces 341 and 351 of the inner lips 34 and 35 by a lubrication treatment performed after the extrusion.

The two members 3A and 3B of the extrusion molding are connected in a corner shape by molding. Mold forming corner 3
C is a rubber material or a thermoplastic elastomer (T) in which the terminal portions of both members 3A and 3B are set to be substantially perpendicular to each other and set in a cavity of a mold, and molded into the cavity.
PE) is formed. In the molded corner 3C, the door frame outer plate sandwiching portion formed by the outer side wall 33 and the cover lip 37 is curved so as to match the radius of curvature of the door frame outer plate 22, and Of the door frame inner plate 21 composed of the side wall 32 'and the cover lip 36'
Curved to match the large radius of curvature of

The details of the connection structure of the molding corner 3C will be described together with the connection method.

Extruded horizontal member 3A and vertical member 3
When forming and connecting B, the cover lip 36 on the inside of the vehicle is cut by a predetermined length from the end cut surface of both members 3A and 3B along the root thereof, and the cover lip 36 is cut vertically at its tip. Thus, the cover lip 36 is cut off. In this case, as shown in FIG. 1B, the cut surfaces are glass runs 3A and 3B from which the inner lip 34 extends.
Is a cut surface 6 cut off obliquely.

Next, the terminal portions of the two members 3A and 3B from which the cover lip 36 has been cut off at the terminal portions in this manner are
The inner lips 34 and 35 are slightly opened so as to be separated from each other, and are opposed to each other in a direction substantially perpendicular to each other, and are set in a cavity of a mold for molding the molding corner portion 3C, and a rubber material or TPE is filled in the cavity. Inject and connect between both terminals.

The molded corners 3C are horizontal members 3A and vertical member 3B, the first molded portion 3C ₁ for connecting the main body 31 including both inner lips 34, 35 and outer cover lip 37, the both members 3A, becomes the inside of the side wall 36 of the 3B both members 3A to form a large radius of curvature to expand the inner diameter side, the second molded portion 3C ₂ connecting the resected portion of the cover lip 36 of 3B The two portions 3C ₁ and 3C ₂ have a structure in which the inner side walls 32 and 32 'are integrated at the center of the corner. Then, portions of the enlarged side wall 32 ′ of the die forming on the side of the horizontal member 3 </ b> A and the vertical member 3 </ b> B are connected by the oblique cut surface 6 from which the cover lip 36 is cut off. The molded cover lip 36 ′ extending from the enlarged side wall 32 ′ has ends on the horizontal and vertical sides connected as ends of the cover lip 36 of the horizontal member 3 A and the vertical member 3 B, respectively.

However, in the above-mentioned glass run 3, when the molded portion is connected to the base portion of the inner lip 34 whose surface has been subjected to the lubrication treatment, the base portion is cut obliquely to perform the lubrication treatment. Since the molded portions are connected by the cut surface 6 which is not cut, complete connection without peeling can be achieved.

[0018]

According to the present invention, in a glass run formed by connecting the extruded members on the horizontal side and the vertical side by molding and forming a corner portion, the extruded members are formed and connected while avoiding the surface-slip-treated portions of both members. Accordingly, the extruded material and the molded connection can be securely bonded.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
1 is a perspective view of a corner portion of the door glass run, FIG. 1B is a cross-sectional view taken along the line IB-IB of FIG. 1A, and FIG.
FIG. 2A is a cross-sectional view taken along the line IC-IC.

FIG. 2 is a front view of an automobile door to which the present invention is applied.

FIG. 3 shows a conventional door glass run I B-I of FIG. 1 (A).
It is sectional drawing in the position along the B line.

[Explanation of symbols]

2 the door frame 21 within plate 22 outer plate 3 door glass run 3A horizontal member 3B vertical member 3C molded corner 3C ₁ first molded portion 3C ₂ second molded portions 32,33 sidewalls 34, 35 inner lip 36 , 37 Cover lip 32 'Enlarged side wall 6 Diagonal cut surface

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 10/04 B60R 13/06

Claims (1)

(57) [Claims] 1. A door glass run which is mounted along a door frame of an automobile in which a radius of curvature of an inner plate at a corner portion is larger than that of an outer plate. An inner lip extending in the opposite direction and sandwiching the peripheral edge of the door glass; and a cover extending from the tip of the both side walls so as to be inverted outward and forming a holding portion for sandwiching the inner plate and the outer plate with the both side walls. With lip,
In a door glass run in which the ends of the horizontal member and the vertical member of the extrusion molding are connected by molding to form a corner portion, the molded corner portion is formed so that the space between both ends follows the corner shape of the inner plate. A first molded portion to be connected, and a holding portion for sandwiching the inner plate in a range from a front position of the terminal of the horizontal member to a position below the terminal of the vertical member, integrally with the first molded portion, to match the curvature of the inner plate. The side wall of the holding portion is constituted by a second molded portion extending in the inner diameter direction, and a connecting portion between the side wall of the second molded portion and the horizontal member and the vertical member is formed by a main body of the two members. The outer surface of the corner from the side wall of the part to the inner lip is cut diagonally, and a second
An automotive door glass run with a structure in which the side walls of the molded part are joined.