JP2010173512A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run maintaining the sealability of an interior side seal lip, and positively discharging water stored between an inner side of a door glass and a fore end of the interior side seal lip. <P>SOLUTION: A cutout part for discharging water in which the position of a fore end of an interior side seal lip is formed at the position lower than the position of the fore end of the interior side seal lip of an extruded part is formed on at least one of a front side die forming part for connecting an upper ridge part to a front longitudinal ridge part and a rear side die forming part for connecting the upper ridge part to a rear side longitudinal ridge part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a glass run.

  Generally, a glass run is provided along the inner periphery of a door frame of an automobile. When viewed from the cross-sectional direction, the glass run includes a base portion and a vehicle body side wall portion extending from the base portion and a vehicle body side wall portion and a vehicle outer side wall portion. It has a car outer seal lip. The glass run is attached to an attachment portion (channel portion) in which the main body portion is provided along the inner periphery of the door frame. Then, the door glass is sealed by the both seal lips so that the peripheral portions of the inner and outer surfaces of the door glass are sandwiched.

  In addition, the glass run is composed of an extrusion molding part formed in a substantially linear shape and a mold forming part that connects the extrusion molding parts at a predetermined angle, for example, along the shape of the door frame. The front vertical side, the upper side, and the rear vertical side.

  By the way, the vehicle inner side seal lip and the vehicle outer side seal lip for sealing the inner and outer surfaces of the door glass are produced by extrusion molding of the straight portion of the glass run, and the front end of the door glass has a round shape. It is structured so that water can easily collect between the tip of the seal lip. Further, when high-pressure water directly hits the seal lip portion of the glass run during car washing, water may pass between the door glass and the vehicle outer seal lip. The squeezed water accumulates in a groove formed between the inner surface of the door glass and the tip of the car interior seal lip, and the accumulated water drops when the door is opened, causing discomfort to the passengers. May give.

  As a measure for improving such an event, as shown in FIG. 2 of Patent Document 1, the vehicle inner seal lip is made thinner as it goes to the tip, so that it is trapped between the inner surface of the door glass and the tip of the vehicle inner seal lip. A way to prevent it is possible. However, when the front end of the vehicle interior seal lip is formed thin, a wavy phenomenon at the front end of the seal lip is likely to occur, and there is a concern that the sealing performance may be deteriorated due to this phenomenon.

JP-A-6-179324

  The present invention has been made in view of the above circumstances, and the problem to be solved is that the sealability of the vehicle interior seal lip is maintained and, at the same time, accumulated between the inner surface of the door glass and the tip of the vehicle interior seal lip. It is to provide a glass run that can actively drain water.

  Hereinafter, each means suitable for solving the above-described problem will be described separately. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. A die formed by a molding method to the end of the extrusion molding part so that the extrusion molding part formed by the extrusion molding method and the extrusion molding parts are connected to each other at a predetermined angle. It is composed of a molded part, and the upper side part and the front vertical side part, which are extrusion molded parts, are connected by a mold part, and the upper side part and the rear vertical side part are connected by a mold part, and the vehicle door frame inner periphery A vehicle body side wall portion and a vehicle outer side wall portion, and a vehicle inner side wall portion and a vehicle outer side wall, each of which is attached to a mounting portion provided along the base and has a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from the base portion. A glass run comprising a vehicle inner side seal lip and a vehicle outer side seal lip extending from the substantial tip of the portion to the inside of the main body,
The tip position of the vehicle interior seal lip is at least one of the front mold part that connects the upper side part and the front vertical side part or the rear mold part that connects the upper side part and the rear vertical side part. A glass run having a drainage notch portion formed at a position lower than the tip end position of the vehicle interior seal lip on the upper side.

  According to the means 1, at least one of the front mold part for connecting the upper side part and the front vertical side part or the rear mold part for connecting the upper side part and the rear vertical side part is provided with the vehicle interior seal lip. By having a drainage notch formed at a position where the front end position of the upper side is lower than the front end position of the vehicle inner side seal lip, the vehicle outer side surface of the vehicle inner side seal lip contacts the inner side surface of the door glass. The inner seal lip rises, and the water accumulated in the groove formed by the inner surface of the door glass and the tip of the vehicle inner seal lip is between the vehicle inner seal lip and the vehicle inner side wall from the drainage notch. It drains through the formed groove-shaped part. For this reason, when the door is opened, the water accumulated between the inner surface of the door glass and the front end of the vehicle inner seal lip drips into the vehicle without causing discomfort to the occupant. Further, since it is not necessary to reduce the thickness of the vehicle interior seal lip, the sealing performance is maintained without any problems such as undulations.

  The glass run of the present invention prevents water from dripping into the vehicle when the glass is opened by actively draining the water accumulated between the inner surface of the door glass and the inside seal lip from the notch for drainage. can do. Further, in order to achieve this problem, the tip of the seal lip is not made thin, so that sufficient sealing performance can be maintained without causing the ripple of the seal lip.

It is the front view seen from the passenger compartment outer side which shows schematic structure of a door. It is a general cross section of the glass run in an upper side part. It is a cross section of the glass run in the notch part for drainage. It is the front view seen from the vehicle interior side which shows schematic structure of a back side shaping | molding part. (Example) It is the front view seen from the vehicle interior side which shows schematic structure of a back side shaping | molding part. (Another example)

  Hereinafter, an embodiment will be described with reference to the drawings.

  As shown in FIG. 1, an automobile door 61 (front door in the figure) guides the door glass DG up and down, and when the door glass DG rises and the window is closed, the outer periphery of the door glass DG and the door A glass run 1 for sealing between the frame 62 is provided. More specifically, the glass run 1 is a portion corresponding to the front edge portion of the door glass DG, extending downward from the upper edge portion 2 corresponding to the upper edge portion of the door glass DG and the front end portion of the upper edge portion 2. A rear vertical side portion 4 that extends downward from the rear end portion of the front vertical side portion 3 and the upper side portion 2 and that corresponds to the rear edge portion of the door glass DG is provided. Then, the channel portion DC formed along the inner periphery of the door frame 62, and the inner periphery of the sash portion DS provided in the door panel 63 so as to extend the vertical side portion before and after the channel portion DC downward. The glass run 1 is attached. The glass run 1 is made of EPDM (ethylene-propylene-diene copolymer rubber).

  As shown in FIG. 2, the upper side portion 2 includes a main body portion 11, a vehicle outer side seal lip 12, and a vehicle inner side seal lip 13. The main body 11 includes a base portion 14, a vehicle outer side wall portion 15 and a vehicle inner side wall portion 16 extending from the base portion 14, and has a substantially U-shaped cross section as a whole. The vehicle outer side seal lip 12 extends from substantially the front end of the vehicle outer side wall portion 15 toward the inner peripheral side of the main body portion 11, and the vehicle inner side seal lip 13 extends from the substantially front end of the vehicle inner side wall portion 16 to the inner peripheral side of the main body portion 11. It extends toward. When the door glass DG is closed, the vehicle outer side seal lip 12 is pressed against the outer side surface of the door glass DG, and the vehicle inner side seal lip 13 is pressed against the inner side surface of the door glass DG. Thereby, the vehicle exterior side and vehicle interior side of the door glass DG are each sealed. In addition, an exterior molding lip 17 extending from the exterior sidewall 15 toward the exterior of the vehicle and an interior molding lip 18 extending from the interior sidewall 16 toward the interior of the vehicle are provided.

  The front vertical side 3 and the rear vertical side 4 are also provided with a main body 11 and a pair of seal lips 12 and 13. However, in the glass run 1, the vehicle exterior molding lip 17 and the vehicle interior molding lip 18 are omitted for portions that are disposed in the door panel 63 below the belt line and do not appear in the appearance. Along with the sash portion DS to be attached, miniaturization has been achieved. The vehicle exterior seal lip 12 is configured to be smaller than the vehicle interior seal lip 13. As a result, the door glass DG is brought to the outside of the vehicle, and a flash surface is achieved.

  Next, with reference to FIGS. 3 and 4, the drainage notch 20 formed in the rear mold part 5 that connects the upper side 2 and the rear vertical side 4 will be described. As shown in FIG. 4, the rear mold portion 5 is formed by connecting the upper side portion 2 and the rear vertical side portion 4 that are extruded in a straight line by molding at a predetermined angle. This is the side corner. The rear mold part 5 is formed with a drainage notch 20 on the rear side of the connection surface 6 with the upper side 2. The length L1 of the drainage notch 20 is 10 mm, and the distance L2 between the connection surface 6 and the drainage notch 20 is 3 mm. In addition, a continuous portion of the inboard seal lip 13a of the drainage notch 20 and the seal lip 13 of the upper side 2 has a tapered shape, and an R shape is applied to the corner (gradual deformation). Part). The difference L3 in the tip length between the vehicle inner side seal lip 13a of the drainage cutout portion 20 and the vehicle inner side seal lip 13 of the upper side portion 2 is formed to be 1.5 mm. (See Figure 3)

  The length L1 of the drainage notch 20 is preferably 5 mm or more, and if it is less than 5 mm, the drainage of the water accumulated between the inner side surface of the door glass DG and the vehicle interior seal lip 13 decreases. If the length of the drainage notch is 5 mm or more, the water accumulated between the inner surface of the door glass and the tip of the car interior seal lip will suddenly lose the car weir inside the drainage notch. It can overflow from the drainage notch and can easily flow down into the groove formed between the vehicle inner side seal lip and the vehicle inner side wall. Further, since the longitudinal edge of the drainage notch is located at a portion where the bottom surface of the groove-like portion is downwardly inclined, water from the notch flows down to the groove-like portion, and The vertical side of the groove is dropped to the lower part of the door, and then drained out of the vehicle. The distance L2 between the connection surface 6 and the drainage notch 20 may be 0 mm, but the formability is better when the distance is provided. If the notch for drainage is 3 mm or more away from the connection position between the extrusion-molded part and the mold-molded part, the gradually deformed part can be reliably provided, and stress concentration does not occur. Further, the difference L3 between the front end lengths of the interior seal lip 13a of the drainage notch 20 and the interior seal lip 13 of the upper side 2 may be 1 mm or more, and if it is less than 1 mm, the inner surface of the door glass DG and the vehicle The drainage of the water accumulated between the inner seal lips 13 is reduced.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) Although the formation part of the notch 20 for drainage in the said embodiment is a corner type molding part of the upper side rear part of a front door, it is not limited to this, For example, the upper side of a front door It is good also as providing in the corner part of the front part and the corner part of the upper side part of a rear door.

  (B) In the above embodiment, the drainage notch 20 is formed to have the L1 length, but is not limited to this. For example, as shown in FIG. The front end position of the in-vehicle seal lip 13a can be formed so as not to be restored on the side opposite to the connection surface 6.

  (C) In the above embodiment, the glass run 1 is made of EPDM. However, the glass run 1 may be a different type such as a dynamically crosslinked olefinic thermoplastic elastomer (TPV) or a non-crosslinked olefinic thermoplastic elastomer (TPO). You may comprise by the material of.

DESCRIPTION OF SYMBOLS 1 Glass run 2 Upper side part 3 Front side vertical part 4 Rear side vertical part 5 Rear side molding part 6 Connection surface 11 Main part 12 Car outer side seal lip 13 Car inner side seal lip 13a Car inner side seal lip 14 Base part 15 Car outer side Side wall 16 Car interior side wall 17 Car exterior molding lip 18 Car interior molding lip 20 Drainage notch 61 Automotive door 62 Door frame 63 Door panel DC Channel part DG Door glass DS Sash part

Claims (1)

The extrusion molding part formed by the extrusion molding method is connected to the end of the extrusion molding part by a molding method so that the extrusion molding parts are connected to each other at a predetermined angle. The upper side part and the front vertical side part which are extrusion molding parts are connected by the front mold part, and the upper side part and the rear vertical side part are connected by the rear mold part, A vehicle body portion attached to a mounting portion provided along an inner periphery of a vehicle door frame and having a substantially U-shaped cross section including a base portion, a vehicle inner side wall portion and a vehicle outer side wall portion extending from the base portion; A glass run comprising an inner side seal lip and an outer side seal lip extending from the substantially inner ends of the inner side wall and the outer side wall to the inside of the main body,
At least one of the front mold part that connects the upper side part and the front vertical side part or the rear mold part that connects the upper side part and the rear vertical side part, the vehicle interior seal lip A glass run having a drainage notch formed at a position lower than the tip position of the vehicle interior seal lip on the upper side.

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