JP3680576B2 - Connection structure of automotive glass door run - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door glass run that is mounted along the inner periphery of a door frame of an automobile door, and more particularly to the structure of a connecting portion thereof.
[0002]
[Prior art]
As shown in FIG. 3, along the inner periphery of the door frame 11 of the automobile door 1, the front and rear vertical edges are guided when the door glass 2 is raised and lowered, and the door frame 11 and the door glass are closed when the door glass 2 is closed. A door glass run (hereinafter referred to as a glass run) 5 for sealing between the two peripheral edges is attached.
[0003]
As shown in FIG. 4, the glass run 5 has a substantially U-shaped cross section, and includes seal lips 53 a and 53 b extending in opposite directions from the ends of both side walls 52 a and 52 b extending from both ends of the bottom wall 51 in parallel to each other. It has a basic structure in which the peripheral edge of the door glass 2 is sandwiched from both sides by both seal lips 53a and 53b. The glass run 5 in the illustrated example includes molding lips 54a and 54b that are inverted from the ends of the side walls 52a and 52b and extend along the outer surfaces of the side walls 52a and 52b. The inner peripheral side wall of the door frame 11 is sandwiched between the opposing side walls 52a and 52b.
[0004]
The glass run 5 is manufactured by extrusion molding. However, the connecting corner portions C ₁ and C ₂ between the front and rear vertical frame portions 11A and 11C of the door frame 11 and the horizontal frame portion 11B connecting the upper ends thereof are bent in a letter shape or L shape. When the glass run of extrusion molding is bent so as to follow, the cross-sectional shape is broken. For this reason, the bent corner portion of the glass run is formed by the molded connection portions 6A and 6B. That is, the ends of the two glass run extrusion molding members are set in a mold so as to face each other at a predetermined angle, the molding material is injected into the mold, and the ends are connected in a square shape or an L shape. ing.
[0005]
Further, extension portions 5D and 5E extend from lower terminals before and after the glass run 5 along the door frame 11, and these extension portions 5D and 5E are front and rear channel members 12A installed in the door body 1 in a substantially vertical direction. , 12B. Since the glass run 5 and the extension portions 5D and 5E have slightly different cross-sectional shapes, the glass run 5 and the extension portions 5D and 5E are connected by connecting portions 6C and 6D for molding.
[0006]
[Problems to be solved by the invention]
The glass run is composed of a rubber material such as EPDM rubber, but the extruded member is subjected to a sliding treatment with urethane paint or the like on the sliding portion of the door glass in the process of being continuously drawn after extrusion. Since the connecting portion after the forming member is connected by molding is difficult to perform the slip treatment, the treatment is often omitted. Even if it is lubricated, the binding strength of the treatment agent is weak.
[0007]
For this reason, wear tends to occur on the bottom surface where the outer peripheral end surface of the rough door glass slides in contact with the molding connection part, especially on the door glass surface, noise is generated in long-term use, and the smoothness of raising and lowering the door glass is reduced. There was a fear.
[0008]
Therefore, the present invention has been made with the object of improving the wear resistance of the glass run molding connection portion, particularly the sliding of the bottom glass of the glass run.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided an extruded glass run vertical member which is attached along the vertical frame portion of the door frame and guides the raising and lowering of the door glass, and a door glass which is attached along the horizontal frame portion of the door frame. It provides a connection structure that connects the horizontal member of an extruded glass run that receives its upper edge from the top when closed, and is connected to the upper end of a vertical member whose bottom wall is lubricated. A bottom wall extension is formed by extending the bottom wall in the form of a tongue, and an upper end of a vertical member from which the extension extends and a terminal of a transverse member that is in close proximity to the tip of the bottom wall extension. It connects with a molding member, and it is set as the structure which formed the bottom wall of the connection part substantially by the said bottom wall extension part.
[0010]
Since the bottom wall of the connection portion is formed by the bottom wall extension portion of the extruded member that has been subjected to the sliding treatment, the wear resistance against sliding of the door glass is good.
[0011]
The invention of claim 2 includes a lower end of a vertical member of an extruded glass run along a vertical frame portion of a door frame, and an extruded glass run extension member along a vertical channel member connected to the vertical frame portion. A connection structure for connecting an upper terminal is provided. A bottom wall extension is formed on the lower end of a vertical member by extending the bottom wall in a tongue-like shape, and the extension extends. The lower end of the member and the upper end of the glass run extension member are connected by a molding member, and the bottom wall of the connection part is a vertical cross-section projecting to the back side of the bottom wall, and the upper part consists of the above bottom wall extension part The lower half is made of a molded member.
[0012]
The bottom wall portion made of the molding member of the connecting portion is inclined to the back side and hardly comes into contact with the vertical edge of the door glass, thus preventing wear.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment in which the present invention is applied to the connection of the glass run of the corner portion C ₁ shown in FIG. 3 will be described with reference to FIGS.
[0014]
Extruded glass run vertical member 5A attached along the vertical frame portion 11A on the front side of the door frame 11, and an extruded glass run horizontal member attached along the horizontal frame portion 11B extending from the upper end of the vertical frame portion 11A. It is connected to 5B by a die-formed connecting portion 6A that is bent into a square shape. Each of the vertical member 5A and the horizontal member 5B is made of EPDM rubber and has a basic U-shaped cross section as shown in FIG. 4, and includes a bottom wall 51, left and right side walls 52a and 52b, seal lips 53a and 53b, and a molding lip 54a, 54b. The vertical member 5A and the horizontal member 5B are made of a common material, and in the process of being extruded and taken, the sliding surfaces such as urethane paint are continuously applied to the opposing surfaces of the seal lips 53a and 53b in contact with the door glass 2 and the surface of the bottom wall 51. Lubricating treatment is performed by applying a sex agent.
[0015]
The vertical member 5A and the horizontal member 5B are cut to a predetermined length. In this case, as shown in FIG. 1 (B), the upper end of the vertical member 5A is stepped so that only the bottom wall 51 extends in a tongue-like shape. The lower end of the horizontal member 5B is cut into a flat surface perpendicular to the length direction of the horizontal member 5B. The length of the bottom wall extension 511 is substantially the same as the length of the connecting portion 6A.
[0016]
Both members 5A and 5B are bent with the bottom wall extension 511 of the vertical member 5A bent into a square shape, and the end is placed in close proximity to the bottom wall 51 end of the horizontal member 5B as shown in FIG. 1B. Set the part in the cavity in the unillustrated mold. Then, an EPDM rubber material is injected into the cavity to form a molding connection portion 6A having a cross-sectional shape common to both the members 5A and 5B.
[0017]
FIG. 1A is a perspective view of a connecting portion 6A that is vertically divided as viewed from the opening side. In the connecting portion 6A, the side wall 62a (62b), the seal lip 63a (63b), and the molding lip 64a (64b) are integrally molded with an injection material. Then, both side edges of the bottom wall extension 511 are joined to the molding side wall 62a (62b), and the tip is joined to the end of the bottom wall 51 of the transverse member 5B via the thin molding member 60. Therefore, the bottom wall 61 of the connecting portion 6A is formed by a bottom wall extension 511 of the vertical member 5A which has been substantially extruded and subjected to a sliding treatment.
[0018]
When the door glass 2 is raised and closed, the front edge end surface of the door glass 2 is in sliding contact with the vertical surface of the bottom wall 61 of the connecting portion 6A. However, since the bottom wall 61 is formed of an extrusion molding material and is subjected to a slip treatment, the wear resistance and the slipperiness are maintained for a long time.
[0019]
When the door glass 2 reaches the rising end, the upper edge end surface of the door glass 2 is received by the upper inclined surface of the bottom wall 61 of the connecting portion 6A and the bottom wall 51 surface of the lateral member 5B. Between the tip of the bottom wall extension 511 that forms the bottom wall 61 of the connecting portion 6A and the bottom wall 51 and the terminal of the transverse member 5B, there is a molding member 60 that joins them, Since it is in the position which only receives the upper edge end surface of the door glass 2, abrasion does not arise.
[0020]
Also in L-shaped corner portion C ₂ shown in FIG. 3, the glass along the terminal on the longitudinal member 5C of the glass run 5 along the vertical frame 11C of the rear side of the door frame, the horizontal frame portion 11B of the door frame The rear end of the transverse member 5B of the run 5 is connected by a molding connection portion 6B having a bottom wall extension portion extended from the upper end of the vertical member 5C as a bottom wall.
[0021]
Next, an embodiment in which the present invention is applied to the connection between the vertical member 5A shown in FIG. 3 and the glass run extension member 5D extending into the door body 1 will be described with reference to FIGS.
[0022]
The upper end of the channel member 12A installed in the vertical direction in the door body 1 is connected to the lower end of the vertical frame portion 11A on the front side of the door frame 11 so as to extend it. The lower end of the vertical member 5A of the glass run 5 attached along the vertical frame portion 11A and the upper end of the glass run extension member 5D attached along the channel member 12 are connected by a molding connection portion 6C.
[0023]
The glass run extension member 5D is an extrusion-molded body made of the same material as the extrusion-molding members 5A, 5B, and 5C along the door frame 11, and has substantially the same cross-sectional shape, but does not include a molding lip.
[0024]
The lower end of the vertical member 5A of the glass run 5 is stepped, and a bottom wall extension 512 extending the bottom wall 51 extends in a tongue shape. The length of the bottom wall extension portion 512 is half or slightly shorter than the length of the molded connection portion 6C that connects the vertical member 5A and the glass run extension portion 5D. The upper end of the glass run extension 5D is cut flat.
[0025]
When connecting the vertical member 5A and the glass run extension 5D, the distance between the end of the members 5A and 5D and the end of the bottom wall extension 512 and the end of the glass run extension 5D is longer than the length of the extension 512. Also, the two members 5A and 5D are arranged in a straight line, and the extension portion 512 is bent at the base 50 back side and the extension portion 512 is slightly inclined, with the two members 5A and 5D facing each other with a slightly longer interval. The opposing parts of 5A and 5D are set in the mold cavity. Then, a molding material is injected into the cavity.
[0026]
By regulating the cavity shape, as shown in FIG. 2, the bottom wall 61 is inclined upward and is inclined to the back side of the bottom wall, and is connected to the bottom wall extension 512 of the vertical member 5A in a vertical cross-sectional shape. A molding connection portion 6C is formed which includes a side wall 62 that connects 5A and the side wall 52a (52b) of the glass run extension member 5D and a seal lip 63 that connects the seal lip 53a (53b) of both members 5A and 5D.
[0027]
Thus, since the bottom wall 61 surface of the connection part 6C is formed deeper than the bottom wall general surface, it becomes difficult to contact the front edge of the glass when the door glass 2 is raised and lowered. In addition, when the door glass 2 rises from the descending end position, the corner of the upper end of the front edge is in sliding contact with the root corner 50 of the bottom wall extension 512, but the corner 50 is an extrusion molding material and is slippery. Since the treatment is performed, the wear resistance is good.
[0028]
In addition, the same effect is show | played by also making the connection part 6D of the vertical member 5C of the rear side of the glass run 5 shown in FIG. 3 and the glass run extension member 5E into the structure similar to the connection part 6C. .
[0029]
【The invention's effect】
The present invention relates to an extrusion molding member having a wear resistance superior to that of a molding member at a bottom portion where an edge surface of a door glass is slidably contacted with each other in a molding molding connection portion for connecting ends of extrusion molding members of a glass run. Since it is formed by the extended bottom wall portion, wear at the connecting portion is prevented and smooth glass slidability is maintained, and the durability of the glass run is improved.
[Brief description of the drawings]
FIG. 1 (A) is a partially cutaway perspective view of a door glass run connecting portion according to the present invention, and FIG. 1 (B) is a plan view showing a terminal shape of a door glass run to be connected.
2A is a partially cutaway perspective view of another door glass run connecting portion according to the present invention, and FIG. 2B is a longitudinal sectional view taken along line IIB-IIB in FIG. 2A. It is.
FIG. 3 is a front view of an automobile door equipped with a door glass run.
4 is a view showing a cross-sectional shape of the door glass run along the line IV-IV in FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Automobile door 11 Door frame 2 Door glass 5 Door glass run 5A, 5C Vertical member 5B Horizontal member 5D, 5E Door glass run extension member 51 Bottom wall 511,512 of glass run Bottom wall extension part 6A, 6B, 6C, 6D type Molded connection 61 Bottom wall of molded connection

Claims (2)

A door glass run having a substantially U-shaped cross section that is attached in series along the inner periphery of a door frame (11) of an automobile door, and is a longitudinal member (5A, 5C) before and after extrusion that guides the raising and lowering of the door glass (2). In the door glass run (5) formed by connecting the front end and the front end of the lateral member (5B) of the extrusion molding receiving the upper edge from above when the door glass (2) is closed in a corner shape by molding. In addition, the vertical member (5A, 5C) in which the bottom wall (51) is lubricated has a bottom wall extension (511) in which the bottom wall (51) is extended in a tongue shape from the upper end thereof. The upper end of the vertical member (5A, 5C) that is formed and from which the bottom wall extension (511) extends and the end of the horizontal member (5B) close to and opposed to the tip of the bottom wall extension (511) are molded. It connects with a shaping | molding member (60), and the bottom wall (61) of a connection part (6A, 6B) is substantially said above. Connecting part structure of the door glass run automotive, characterized in that formed on the wall extension (511).   A door glass run having a substantially U-shaped cross-section attached in series along the inner periphery of a door frame (11) of an automobile door, and longitudinal members (5A, 5A, 5C) In a door glass run (5) in which an extruded glass run extension member (5D, 5E) extending into the door body (1) is connected to the lower end of the door body (1) by a molding member, the vertical member (5A, 5C) The lower end is formed with a bottom wall extension (512) in which the bottom wall (51) is extended in a tongue-like shape, and the lower end of the vertical member (5A, 5C) from which the bottom wall extension (512) extends. And the upper end of the glass run extension member (5D, 5E) are connected by a molding member, and the bottom wall (61) of the connection portion (6C, 6D) is formed in a vertical cross-sectional shape projecting to the bottom wall back side, The upper half is made of the bottom wall extension (512), and the lower half is made of a molded member. Connecting part structure of the door glass run automotive, characterized in that the granulation.

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