JP2006015776A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve sealing property and appearance by preventing deformation of a glass run when raising door glass. <P>SOLUTION: This glass run 10 is formed into a substantially cross-sectional U-shape constituted of a vehicle outside side wall 20, a vehicle inside side wall 30 and a bottom wall 40. The bottom wall 40 is constituted of a bottom wall center part 41 and bottom wall vehicle outside leg part 42 and bottom wall vehicle inside leg part 43 provided at both ends of the width direction of the bottom wall center part 41. The bottom wall 40 integrally forms the bottom wall center part 41 and the bottom wall vehicle outside leg part 42 and bottom wall vehicle inside leg part 43 at both ends of the width direction of the bottom wall center part 41. A reinforcing projecting part 42c is formed on an outside face of the bottom wall vehicle outside leg part 42. The reinforcing projecting part 42 can be abutted on a channel 3 of a door frame 2 when mounting the glass run 10 on the door frame 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automotive glass run that is attached to the inner periphery of a door frame of an automobile door and guides the raising and lowering of the door glass.

As shown in FIG. 4, a glass run 110 for guiding the raising and lowering of the door glass 5 is attached to the inner periphery of the door frame 2 of the door 1 of the automobile. The conventional mounting structure is shown in FIG.
FIG. 5 is a cross-sectional view taken along line AA in FIG.

Conventionally, as shown in FIG. 5, the glass run 110 is attached in the channel 3 of the door frame 2 to guide the raising and lowering of the door glass 5 and to seal between the door glass 5 and the door frame 2. . Furthermore, the glass run 110 is formed by molding the upper side, the front side vertical side, and the rear side vertical side of the door 1 including the straight linear part 111 formed by extrusion molding in accordance with the shape of the door frame 2. Connected at the corner 112.
The seal between the door 1 and the vehicle body is made by a door weather strip 108 attached to the outer periphery of the door frame 2 and / or an opening trim weather strip 109 attached to the flange of the opening of the vehicle body. .

  As shown in FIG. 5, the glass run 110 has a substantially U-shaped cross section including a vehicle outer side wall 120, a vehicle inner side wall 130, and a bottom wall 140. A vehicle outer side seal lip 126 is provided so as to extend from the vicinity of the front end of the vehicle outer side wall 120 toward the inside of the substantially U-shaped cross section. In addition, a vehicle interior side seal lip 136 is also provided on the vehicle interior side wall 130 so as to extend from the vicinity of its front end toward the inside having a substantially U-shaped cross section. Further, a vehicle outer side cover lip 124 extends in the direction of the bottom wall 140 in parallel with the vehicle outer side wall 120 from the vicinity of the front end of the vehicle outer side wall 120, and from the vicinity of the front end of the vehicle inner side wall 130. A vehicle interior cover lip 134 extends in the direction of the bottom wall 140 in parallel with the vehicle interior side wall 130.

  The vehicle outer side wall 120, the vehicle inner side wall 130 and the bottom wall 140 are inserted into the channel 3 provided in the door frame 2, and the outer surface of each wall is in contact with the inner surface of the channel 3. The front end of the outer panel 2c of the door frame 2 is inserted between the vehicle outer side wall 120 and the vehicle outer cover lip 124, and the front end of the inner panel 2d is inserted between the vehicle inner side wall 130 and the vehicle inner cover lip 134. A glass run 110 is held.

The door glass 5 slides on the inside of the glass run 110 having a substantially U-shaped cross section, and the both sides of the end of the glass run 110 are sealed and held by the vehicle exterior seal lip 126 and the vehicle interior seal lip 136. Has been.
When closing the door glass 5, the door glass 5 of the power window rises in the door frame 2, and the upper end of the door glass 5 is inserted into the glass run 110 mounted on the upper side of the door frame 2 and hits the bottom wall 140. At this time, the upward movement of the door glass 5 cannot be completely absorbed, and the front end of the door glass 5 hits the bottom wall 140 and the channel 3 to generate an impact sound, which impairs comfort. Further, when the front end of the door glass 5 hits the bottom wall 140, the deformation of the bottom wall 140 is not stable, the front end of the door glass 5 is shifted in the glass run 110, and the seal lips 126, 136 are deformed, In some cases, the sealing performance deteriorates.

For this reason, a hollow part or a sponge is attached to the bottom wall 140 so as to absorb the impact (see, for example, Patent Documents 1 and 2). However, in order to provide a hollow portion in the bottom wall 140, it is necessary to perform hollow extrusion molding. However, if the hollow portion is simultaneously shaped during extrusion molding, it is difficult to increase the extrusion speed, and productivity is not good. Further, when the sponge is attached, it is necessary to manufacture the sponge separately and adhere it to the bottom wall 140, or simultaneously extrude and vulcanize different materials.
In addition, an attempt has been made to absorb a shock by providing a lip near the bottom wall 140 inside the glass run 110 and applying the tip of the door glass 5 to the lip (see, for example, Patent Document 3). However, in this case, when used for a long time, the lip may be permanently deformed and the impact absorbing effect may be reduced.

In addition, as shown in FIG. 6, when the vehicle outer side wall 120 and the vehicle inner side wall 130 are further extended from the base portion of the bottom wall 140 and the glass run 110 is attached to the channel 3 of the door frame 2, Some have a large gap between the wall 140 and the channel 3. (For example, refer to Patent Document 4).
However, in this case, in order to increase the impact absorption effect and eliminate the impact sound, the extension from the base portion of the vehicle outer side wall 120 and the vehicle inner side wall 130 is lengthened, and the gap between the bottom wall 140 and the channel 3 is increased. It is preferable to make the gap larger. However, when the front end of the door glass 5 pushes the bottom wall 140, the deformation of the bottom wall 140 becomes large, and the vehicle outer side wall 120 and the vehicle inner side wall 130 easily fall to the inside of the glass run 110.

For this reason, the contact between the door glass 5 and the tip of the seal lip becomes abnormal, the sealing performance of the glass run 110 decreases, and a gap is generated between the vehicle outer side wall 120 and the vehicle inner side wall 130 and the door frame 2, Appearance deteriorates.
Japanese Unexamined Patent Publication No. 60-213524 Japanese Utility Model Publication No. 62-413 JP 2002-187432 A Japanese Utility Model Publication No. 5-86641

  For this reason, this invention needed to prevent the deformation | transformation of a door glass at the time of a raise of a door glass, and to improve a sealing performance and aesthetics.

In order to solve the above-mentioned problem, the present invention of claim 1 is attached to the inner periphery of a door frame of an automobile door, and in an automotive glass run for guiding the raising and lowering of the door glass,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the substantially U-shaped cross section. A vehicle outer side seal lip and a vehicle inner side seal lip are provided, and the vehicle outer side seal lip and the vehicle inner side seal lip are used to seal the vehicle outer side surface and the vehicle inner side surface at both ends of the door glass,
The bottom wall is formed by integrally forming a bottom wall car outer leg and a bottom wall car inner leg at both ends in the width direction of the bottom wall center part, and the bottom wall car outer leg and bottom wall car. The side end of the bottom wall central portion is bent and continuous from one end of each inner leg, and the other end of the bottom wall outer leg and the bottom wall inner leg is the root of the outer side wall and Continuing from the base of the inner side wall of the vehicle, a reinforcing protrusion is formed on the outer surface of the outer leg of the bottom wall vehicle so that the reinforcing protrusion can contact the channel of the door frame when the glass run is attached to the door frame. This is a glass run for automobiles.

  In the first aspect of the present invention, the glass run has a substantially U-shaped cross section composed of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall. A vehicle outer side seal lip and a vehicle inner side seal lip extending inwardly of the shape were provided, and the vehicle outer side surface and the vehicle inner side surface of both side ends of the door glass were sealed by the vehicle outer side seal lip and the vehicle inner side seal lip.

  Therefore, when the door is closed, the tip of the door glass can be stored inside the glass run having a substantially U-shaped cross section including the outer side wall, the inner side wall, and the bottom wall, and the door glass is securely held. be able to. The vehicle outer side seal lip and the vehicle inner side seal lip seal the vehicle outer side surface and the vehicle inner side surface at both ends of the door glass, so that the seal lip contacts the door glass as the door glass moves up and down, A seal between the door frame and the door glass can be made by the vehicle inner seal lip.

The bottom wall is formed by integrally forming a bottom wall car outer leg and a bottom wall car inner leg at both ends in the width direction of the bottom wall center part, and the bottom wall car outer leg and bottom wall car. The side end of the bottom wall central portion is bent and continuous from one end of each inner leg, and the other end of the bottom wall outer leg and the bottom wall inner leg is the root of the outer side wall and It is continuous with the base of the vehicle inner side wall.
For this reason, each wall of the glass run can be integrally and continuously formed by the bottom wall car outer leg and the bottom wall car inner leg, and can be formed in a substantially U-shaped cross section. A continuous base portion of the bottom wall vehicle outer leg and the bottom wall vehicle inner leg can abut on the channel of the door frame to hold the center of the bottom wall.
Both ends of the center portion of the bottom wall are continuously bent in the lateral direction from the respective upper ends of the bottom leg of the bottom wall car and the leg of the bottom wall car. For this reason, the both ends of the bottom wall center part can be supported by the bottom wall car outer leg part and the bottom wall car inner leg part, and a space can be provided between the bottom wall center part and the channel.

  A reinforcing protrusion is formed on the outer surface of the outer leg of the bottom wall vehicle so that the reinforcing protrusion can come into contact with the channel of the door frame when the glass run is attached to the door frame. For this reason, the reinforcing protrusion is formed in a portion where the bottom wall vehicle outer leg faces the space formed between the center of the bottom wall and the channel. Then, when the door glass rises and hits the bottom wall of the glass run, the center portion of the bottom wall is deformed, and the force that the bottom leg of the bottom wall car is displaced in the outside direction of the channel acts. At this time, the reinforcing protrusions of the bottom leg of the bottom wall car contact the channel to support it, and the deformation of the center part of the bottom wall is reduced and the sliding resistance between the reinforcing protrusion and the channel reduces the outside of the bottom wall car. It is possible to prevent the leg from being displaced and prevent the vehicle outer side wall from falling into the glass run.

  According to the second aspect of the present invention, a bottom wall lip that abuts the channel is formed from the bottom wall central side portion of the outer surface of the bottom wall vehicle outer leg, and a reinforcing protrusion is provided between the bottom wall lip and the bottom wall vehicle outer leg. It is the glass run for motor vehicles which formed the part.

  According to the second aspect of the present invention, a bottom wall lip that abuts on the channel is formed from the bottom wall center side portion of the outer surface of the bottom wall vehicle outer leg, and a reinforcing projection is provided between the bottom wall lip and the bottom wall vehicle outer leg. Part was formed. For this reason, the bottom wall lip is located in the space formed between the center of the bottom wall and the channel, and the bottom leg of the bottom wall car near the continuous part of the bottom wall center part of the part facing the bottom leg of the bottom wall car. Formed from. Even when the door glass pushes the center of the bottom wall and the center of the bottom wall is deformed, the bottom wall lip can abut the surface of the channel to ensure a seal between the channel and the glass run. Further, when the door glass pushes the bottom wall and the bottom wall is deformed, the sliding resistance between the bottom wall lip and the channel can prevent the bottom wall vehicle outer leg from being displaced. Further, at this time, since the reinforcing protrusion also comes into contact with the channel at the same time, it is possible to prevent the bottom wall vehicle outer leg from being displaced.

  According to a third aspect of the present invention, there is provided a glass run for an automobile in which the bottom wall central portion is bent substantially near the center of the bottom wall central portion so that the vehicle inner side is substantially horizontal to the door glass and the vehicle outer side is inclined upward. .

  According to the third aspect of the present invention, the center portion of the bottom wall of the glass run is bent near the center of the center portion of the bottom wall so that the inside of the vehicle is substantially horizontal with respect to the door glass and the outside of the vehicle is inclined upward. For this reason, when the door glass rises and the front end of the door glass comes into contact with the center of the bottom wall of the glass run, By displacing in the vehicle exterior direction, the outside seal lip of the glass run and the door glass can be brought into close contact with each other. For this reason, the vehicle exterior seal lip can be surely brought into contact with the door glass, and the sealing performance between the door glass and the glass run can be improved.

  Moreover, since the door glass is displaced to the outside of the vehicle, the level difference between the door glass and the door frame can be reduced. In addition, since the vehicle interior seal lip is formed larger than the vehicle exterior seal lip, the vehicle interior seal lip has more room for bending, and even if the door glass is displaced toward the vehicle exterior, the vehicle interior seal lip The tip can follow the door glass, and sealability can be secured.

  The present invention of claim 4 is the glass run for automobiles in which the reinforcing protrusions are formed on the bottom wall car outer leg part and the bottom wall car inner leg part.

  In this invention of Claim 4, since the reinforcement protrusion part was formed in the bottom-wall car outer leg part and the bottom-wall car inner leg part, when the door glass pushes the bottom wall center part, only the bottom-wall car outer leg part. In addition, it is possible to prevent the bottom wall vehicle inner leg from being displaced, and to prevent the vehicle inner side wall from falling into the glass run in the same manner as the vehicle outer side wall, thereby improving the sealing performance and appearance.

  According to the present invention of claim 5, the bottom wall central portion is formed such that the thickness on the vehicle inner side is thicker than the thickness on the vehicle outer side, and the bottom wall central portion and the bottom wall vehicle inner leg are continuously bent. It is the glass run for motor vehicles provided with the notch part in the outer surface.

  In the present invention of claim 5, the thickness of the inner side of the bottom wall is formed thicker than the thickness of the outer side of the vehicle. For this reason, the thickness at the center of the bottom wall is greater than the thickness at the inside of the vehicle, the rigidity at the center of the bottom wall is high, and the tip of the door glass contacts the center of the bottom wall. When this is done, it is harder to deform than the outside of the vehicle, and the tip of the door glass does not displace to the inside of the vehicle, but is surely displaced to the outside of the vehicle, reducing the step between the door glass and the door frame. Therefore, the outer side of the vehicle is deformed at the center of the bottom wall, and the bottom leg of the bottom wall vehicle is easily pushed, and the reinforcing protrusion is provided on the bottom leg of the bottom wall vehicle to ensure the sealing performance and the appearance.

  A notch is provided on the outer surface that is bent and continuous between the inner leg of the bottom wall and the center of the bottom wall, so even if the inner side of the center of the bottom wall is thick, it bends at the notch. The bottom wall car inner leg can be pushed in close contact with the car inner side wall and when the front end of the door glass pushes the center of the bottom wall, The center part of the bottom wall can be easily bent at the notch. For this reason, the vehicle inner side of the center portion of the bottom wall is bent at the notch, and the sealing performance of the vehicle inner side seal lip can be ensured without deforming the base portion of the vehicle inner side wall.

  In the present invention, since the bottom wall portion has a gate shape, it is possible to prevent the generation of impact sound when the door glass is closed. When the glass run was attached to the door frame, a reinforcing projection was formed from the outer surface of the outer leg of the bottom wall car so that it could contact the channel of the door frame, so the door glass rose and hit the bottom wall of the glass run. When pushed up, the reinforcing protrusion of the outer leg of the bottom wall car abuts on the channel to support it, preventing deformation of the outer leg of the bottom wall car, and the sliding resistance between the reinforcing protrusion and the channel. The bottom wall vehicle outer leg can be prevented from being displaced, and the vehicle outer side wall can be prevented from falling.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 4 is a side view of the door 1 of the automobile. FIG. 1 is a cross-sectional view of the door frame 2, and is a cross-sectional view of a portion along the line AA in FIG. FIG. 2 is an enlarged cross-sectional view of a portion of the glass run outside the vehicle. FIG. 3 is a cross-sectional view of the door frame 2 showing another embodiment of the present invention.

  As shown in FIG. 4, a door frame 2 is provided above the belt line of the door 1 of the automobile, and a door glass 5 is attached so as to be movable up and down. That is, a glass run 10 is attached to the inner periphery of the door frame 2 to guide the raising and lowering of the door glass 5 and to seal between the door glass 5 and the door frame 2.

The glass run 10 includes a substantially straight line portion 11 formed by extrusion molding as a whole and a corner portion 12 attached to the corner portion of the door frame 2 and formed by molding by connecting the straight portion 11. .
The straight portion 11 includes a portion attached to the upper side of the door frame 2, a portion attached to the rear side vertical side of the door frame 2, and a portion attached to the front side vertical side of the door frame 2. The door frame 2 to which the straight portion 11 is mounted is provided with a channel 3 having a substantially U-shaped cross section for mounting the glass run 10. The channel 3 may be formed by bending the front end of the door frame 2 into a substantially U-shaped cross section.
The straight portion 11 of the glass run 10 basically has substantially the same U-shaped cross-section in both the portion attached to the upper side portion of the door frame 2 and the portion attached to the vertical side portion.

At the corner portion of the door frame 2, the corner portion 12 of the glass run 10 is formed by molding so as to have a shape corresponding to the door frame 2, and at the same time, the straight portion 11 is connected by the corner portion 12 to form a straight portion. 11 is formed to have substantially the same cross-sectional shape as 11, and is a portion to be mounted on the corner portion 2 b of the door frame 2.
The cross-sectional shape of the straight portion 11 of the glass run 10 attached to the upper side of the door frame 2 is substantially U-shaped in cross section from the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40, as shown in FIG. Is formed.

A vehicle exterior seal lip 26 extends from the vicinity of the front end of the vehicle exterior side wall 20 toward the inside of the substantially U-shaped cross section. Further, the vehicle outer side cover lip 24 extends so as to cover the front end of the outer panel 2 c of the door frame 2 from the front outer surface of the vehicle outer side wall 20. A vehicle interior seal lip 36 extends from the front end of the vehicle interior side wall 30 toward the inside of the substantially U-shaped cross section, and a vehicle interior cover lip 34 extends from the front end outer surface of the vehicle interior side wall 30 to the inner panel 2d. It extends in the end face direction and covers the bent portion of the inner panel 2d.
The front end of the vehicle outer side seal lip 26 and the vehicle inner side seal lip 36 come into contact with the front end of the door glass 5 to seal between the door glass 5 and the door frame 2.

  A vehicle outer side holding lip 22 is provided on the outer surface of the base portion near the connecting portion with the bottom wall 40 of the vehicle outer side wall 20. The vehicle outer side holding lip 22 is locked to the step portion of the vehicle outer side wall of the channel 3 having a substantially U-shaped cross section for mounting the glass run 10 provided on the door frame 2, so that the glass run 10 is detached from the channel 3. In addition, the gap between the inner surface of the vehicle outer side wall of the channel 3 of the door frame 2 and the glass run 10 is sealed.

  The vehicle exterior side wall 20 and the vehicle exterior seal lip 26 are smaller than the vehicle interior side wall 30 and the vehicle interior seal lip 36, respectively, and the vehicle exterior seal lip is smaller and thinner. For this reason, the door glass 5 can be positioned outside the vehicle in the glass run 10, and the level difference between the door glass 5 and the door frame 2 can be reduced. Therefore, generation of air resistance and wind noise is reduced, which is preferable in terms of design.

  Similar to the vehicle outer side wall 20, a vehicle inner side holding lip 32 extends from the outer surface of the vehicle inner side wall 30. When the vehicle interior side wall 30 of the glass run 10 is attached to the vehicle interior side wall of the channel 3, the vehicle interior side wall of the channel 3 has a stepped portion, so that the vehicle interior holding lip 32 is locked to the stepped portion. Thus, the vehicle interior side wall 30 of the glass run 10 can be prevented from coming off the channel 3. The vehicle interior holding lip 32 is in contact with the channel 3 to hold the glass run 10 and seal between the channel 3 and the glass run 10.

  A vehicle interior sub-lip 38 is extended obliquely in parallel with the vehicle interior seal lip 36 at a substantially central portion of the inner surface of the vehicle interior side wall 30. When the door glass 5 enters the inside of the glass run 10 and the vehicle inner side seal lip 36 bends in the vehicle interior direction, the front end of the vehicle inner side seal lip 36 comes into contact with the vehicle inner side sub lip 38, and the vehicle inner side seal lip 36 36 can be prevented from bending excessively.

A low sliding member such as urethane resin or silicone resin is applied to the surfaces of the vehicle exterior seal lip 26 and the vehicle interior seal lip 36 that contact the door glass 5. For this reason, when the door glass 5 slides in the glass run 10, the sliding resistance can be reduced, and the glass run can be prevented from shifting.
Further, a low sliding member such as urethane resin may be attached to the inner surface of the vehicle outer side wall 20 and the rear surface of the vehicle outer seal lip 26. In this case, adhesion between the vehicle outer side seal lip 26 and the vehicle outer side wall 20 can be prevented.
The bottom wall 40 is coated with a low-sliding member such as urethane resin on the inner surface having a substantially U-shaped cross section like the seal lips 26 and 36. For this reason, sliding resistance with the door glass 5 can be reduced.

The bottom wall 40 of the glass run 10 includes a bottom wall central portion 41 at the center, a bottom wall vehicle outer leg portion 42 and a bottom wall vehicle inner leg portion 43 provided at both ends of the bottom wall central portion 41 in the width direction. Is done.
The bottom wall central portion 41 may be formed with a plate-like cross section and a curved central portion that is convex toward the opening direction of the glass run 10 or bent near the center as will be described later. it can.

  One end of the bottom wall vehicle outer leg portion 42 in FIG. 1 is continuously formed with the root portion of the vehicle outer side wall 20, and a thin bottom wall groove portion 46 is formed at a continuous portion with the vehicle outer side wall 20. Has been. For this reason, when the glass run 10 is extruded, the glass run 10 is formed with an opening having a substantially U-shaped cross section, and when mounted, the thin bottom wall groove 46 can be easily bent into a substantially U-shaped cross section. When the glass run 10 is attached to the channel 3 by the bottom wall groove portion 46, the vehicle outer side wall 20 and the bottom wall vehicle outer leg portion 42 are bent in a hairpin shape, and the bottom wall vehicle outer leg portion 42 is In close contact with the base of the vehicle outer side wall 20 as described later. The bottom wall central portion 41 is supported by the bottom wall vehicle outer leg portion 42 and the bottom wall vehicle inner leg portion 43, and a space is formed between the channel 3 and the bottom wall central portion 41.

Reinforcing the outer surface of the bottom wall vehicle outer leg portion 42 at the vehicle inner side end of the portion facing the space formed by the channel 3 and the bottom wall central portion 41, that is, at the front end portion close to the channel 3 inside the vehicle. A protrusion 42c is formed. As shown in FIG. 2, the reinforcing protrusion 42c is formed so as to abut on the channel surface from the bottom wall vehicle outer leg portion 42 at right angles or obliquely. The reinforcing protrusion 42c may be formed in the middle of the outer surface of the bottom wall vehicle outer leg portion 42, or may be formed straight from the continuous portion with the bottom wall central portion 41 toward the channel.
When the glass run 10 is mounted on the door frame 2, the tip of the reinforcing protrusion 42 c can abut on the channel 3 of the door frame 2. When the door glass 5 rises and hits the bottom wall central part 41 of the glass run 10 and the front end of the glass run 10 pushes up the bottom wall central part 41, the reinforcing projection 42c is glass as described below. The deformation of the run 10 can be prevented.

  That is, when the front end of the door glass 5 pushes the bottom wall central portion 41, the bottom wall wall 41 is deformed by the deformation of the bottom wall central portion 41 in the space portion on the vehicle outer side wall of the channel 3 where the vehicle outer side holding lip 22 is locked. The vehicle outer side leg portion 42 pushes the vehicle outer side wall 20, the base portion of the vehicle outer side wall 20 is pushed in and enters, the base portion of the vehicle outer side wall 20 is displaced in the vehicle outer direction, and the tip of the vehicle outer side wall 20 is the glass run 10. The force works in such a direction as to fall inside. At this time, the reinforcing protrusion 42 c of the bottom wall vehicle outer leg 42 is pushed by the tip of the door glass 5 and strongly abuts on the channel 3. The reinforcing protrusion 42c is pushed by the channel 3 to increase the sliding resistance and prevent the bottom wall vehicle outer leg portion 42 from being displaced in the channel 3, so that the bottom wall vehicle outer leg portion 42 is connected to the vehicle outer side wall. The force which pushes 20 can be reduced and the fall of the vehicle outer side wall 20 can be prevented.

  In addition, the surface which faces the vehicle outer side wall 20 of the bottom wall vehicle outer side leg portion 42 is formed in a substantially flat shape and is in close contact with each other. Therefore, as shown in FIGS. 1 and 2, when the front end of the door glass 5 enters the inside of the glass run 10 and the front end of the door glass 5 presses the bottom wall central portion 41, the bottom leg of the bottom wall vehicle The flat surface 42 can press the inner surface of the vehicle outer side wall 20 to prevent the vehicle outer side wall 20 from falling to the inside of the substantially U-shaped cross section of the glass run 5.

  The other end of the inner surface of the bottom wall vehicle outer leg 42 has a bottom wall vehicle outer leg protrusion 42 b that protrudes in parallel along the inner surface of the vehicle outer side wall 20. For this reason, the plane of the bottom wall vehicle outer side leg part 42 and the bottom wall vehicle outer side leg part protrusion part 42b can be supported from the root part of the inner surface of the vehicle outer side wall 20 to near the center. The area where the bottom wall vehicle outer leg portion 42 supports the inner surface of the vehicle outer side wall 20 is large, the inner surface of the vehicle outer side wall 20 can be pushed by the tip of the bottom wall vehicle outer side leg protrusion 42b, and the door glass 5 is the bottom wall. When the center part 41 is pushed, it can prevent reliably that the vehicle outer side wall 20 falls down.

  Similarly to the bottom wall vehicle outer leg portion 42, the bottom wall vehicle inner leg portion 43 is formed such that one end of the bottom wall vehicle inner leg portion 43 is formed continuously with the root portion of the vehicle inner side wall 30. A thin bottom wall groove portion 47 is formed in a continuous portion with 30. Similarly, the surface of the bottom wall vehicle inner leg 43 that faces the vehicle inner side wall 30 is formed in a substantially flat shape. Further, the tip of the bottom wall vehicle inner leg 43 can have a bottom wall vehicle inner leg protrusion 43 b that protrudes in parallel along the inner surface of the vehicle inner side wall 30. For this reason, the bottom wall vehicle inner side leg portion 43 can also prevent the vehicle inner side wall 30 from falling down in the same manner as the bottom wall vehicle outer side leg portion 42.

A reinforcing protrusion 42 c may be formed on the vehicle outer side of the tip portion that contacts the channel 3 of the bottom wall vehicle inner leg portion 43 in the same manner as the bottom wall vehicle outer leg portion 42.
In this case, when the door glass 5 pushes the bottom wall 40, the reinforcing protrusion 42 c prevents not only the bottom wall car outer leg part 42 but also the bottom wall car inner leg part 43 from shifting, and the car outer side wall 20. Similarly to the above, the vehicle interior side wall 30 can be prevented from falling into the glass run 10 to improve the sealing performance and appearance.

  Further, the bottom wall central portion 41 can be formed by being bent near the center thereof. In this case, the inside of the vehicle is formed to be substantially horizontal with respect to the rising direction of the door glass 5, and the outside of the vehicle is inclined upward. And the thickness of the vehicle inner side of the center part 41 of the bottom wall is formed thicker than the thickness of the vehicle outer side. Therefore, the rigidity of the inner side of the bottom wall central portion 41 is high, and when the front end of the door glass 5 comes into contact with the bottom wall central portion 41, the inner side of the vehicle is less likely to be deformed than the outer side of the vehicle. Does not displace inside the car.

  The distance between the rear surface of the bottom wall central portion 41 and the channel 3 of the door frame 2 is preferably larger than the thickness of the bottom wall central portion 41. When the gap is formed large, the door glass 5 rises, and when the tip pushes the bottom wall 40 of the glass run 10, the room for bending the bottom wall central portion 41 of the bottom wall 40 increases, and the door glass 5 rises. Impact can be absorbed, and the generation of impact sound and the like can be prevented.

  In order to reduce the level difference between the door glass 5 and the door frame 2, it is preferable that the door glass 5 is displaced to the outside of the vehicle. Therefore, the inner surface of the bottom wall central portion 41 of the bottom wall 40 is attached to the upper side of the channel 3 of the door frame 2 so as to be inclined so that the vehicle outer side is higher than the vehicle inner side. As shown in FIG. 1, when the door glass 5 rises and the front end pushes the bottom wall central part 41, the front end of the door glass 5 slides on the inner surface of the bottom wall central part 41, The outer side lip 26 of the glass run 10 and the door glass 5 can be brought into close contact with each other, and the sealing performance between the door glass 5 and the glass run 10 can be improved. Moreover, the level | step difference between the door glass 5 and the door frame 2 can be made small.

  Since the vehicle inner side seal lip 36 is formed larger than the vehicle outer side seal lip 26, the vehicle inner side seal lip 60 can be more deformed than the vehicle outer side seal lip 50, and the door glass 5 can be attached to the vehicle. When the outer side is displaced, the front end of the vehicle interior seal lip 36 can easily follow the door glass 5, and the sealing performance can be ensured.

Next, a second embodiment of the present invention is shown in FIG. The second embodiment differs from the first embodiment in the bottom wall lip 49 and the notch 48. For this reason, the description will be focused on the bottom wall lip 49 and the notch 48, and the description of the same parts as those in the first embodiment will be omitted.
The bottom wall lip 49 can be formed obliquely toward the channel 3 from a portion slightly closer to the bottom wall central portion 41 than a portion of the bottom wall vehicle outer leg portion 42 in which the reinforcing protrusion 42c is formed. For this reason, the reinforcement protrusion part 42c will be formed between the bottom wall lip 49 and the bottom wall vehicle outer leg part 42.

When the bottom wall lip 49 is formed, even when the door glass 5 pushes the bottom wall central portion 41 and the bottom wall central portion 41 is deformed, the bottom wall lip 49 continues to abut the surface of the channel 3 and does not leave. The seal between the channel 3 and the glass run 10 can be ensured.
Further, when the door glass 5 pushes the bottom wall central portion 41 and the bottom wall central portion 41 is deformed, the bottom wall lip 49 is also pushed by the surface of the channel 3, so that the gap between the bottom wall lip 49 and the channel 3 is reduced. The sliding resistance can prevent the bottom wall wheel outer leg portion 42 from being displaced.
The tip of the bottom wall lip 49 extends to the point where the extension line of the tip of the door glass 5 reaches the channel 3. When the front end of the door glass 5 pushes the bottom wall central portion 41, the front end of the bottom wall lip 49 and the direction of the pushing force of the door glass 5 coincide with each other, and the front end of the bottom wall lip 49 is surely placed on the surface of the channel. Can touch.

  A cutout portion 48 is provided on the outer surface of the bottom wall vehicle inner leg portion 43 that is bent and continuous with the bottom wall central portion 41. For this reason, even if the inner side of the bottom wall central portion 41 is formed thick in order to increase the rigidity, when the front end of the door glass 5 pushes the bottom wall central portion 41, the bottom wall inner side leg portion 43 is provided. The bottom wall central portion 41 can be easily bent around the notch 48. For this reason, the vehicle inner side of the bottom wall central portion 41 bends at the notch 48, and the bottom wall vehicle inner leg portion 43 is not separated from the vehicle inner side wall 30, and is deformed at the vehicle outer side portion of the bottom wall central portion 41. Can be sealed.

Next, the manufacturing method of the glass run 10 is demonstrated.
In the molding of the glass run 10, the solid material is used for the molding material of the straight portion 11 and the corner portion 12, and synthetic rubber, thermoplastic elastomer, and soft synthetic resin are used. For example, for synthetic rubber, EPDM rubber, For thermoplastic elastomers, olefin-based elastomers are used, and for soft synthetic resins, soft vinyl chloride is used.
The straight part 11 is formed into a linear shape by an extruder and then cut into a predetermined dimension.
In the case of synthetic rubber, it is conveyed to a vulcanizing tank after extrusion and heated by hot air or high frequency to vulcanize. In the case of a thermoplastic elastomer or a soft synthetic resin, it is cooled and solidified without being vulcanized.

  Next, the molding part for forming the corner part 12 is molded by sandwiching the end of the straight part 11 cut to a predetermined size as described above between molds for molding the molding part, A solid material that forms a molded part is injected into the tee. The cross-sectional shape of the molded part is substantially the same as the cross-sectional shape of the extruded part. It is preferable to use the same type of molding material as that used for the extruded part. In the case of a thermoplastic elastomer or a soft synthetic resin, since the injected material is melted when injected into the mold, the extruded part and the molded part are integrally fused by the heat and pressure.

  In the case of synthetic rubber, the mold is heated and vulcanized after being poured into the mold. At this time, since the extrusion molding part and the molding part can be vulcanized and bonded using the same material or the same kind of material, they are integrally fixed. When the extruded part is formed of synthetic rubber, the mold part can be formed of a thermoplastic elastomer.

It is sectional drawing of the glass run which is embodiment of this invention, and is sectional drawing of the part along the AA of FIG. It is an expanded sectional view of the vehicle outside part of the glass run which is an embodiment of the invention. It is sectional drawing of the glass run which is other embodiment of this invention, and is sectional drawing of the part along the AA of FIG. It is a side view of a motor vehicle door. It is sectional drawing of the glass run attached to the conventional door frame, and is sectional drawing of the part along the AA of FIG. It is sectional drawing of the conventional glass run.

Explanation of symbols

2 Door frame 5 Door glass 10 Glass run 11 Straight line portion 12 Corner portion 20 Car outer side wall 30 Car inner side wall 40 Bottom wall 41 Bottom wall center portion 42 Bottom wall vehicle outer leg portion 42c Reinforcement protruding portion 43 Bottom wall vehicle inner leg portion 48 Notch 49 Bottom wall lip

Claims (5)

In an automotive glass run that is attached to the inner periphery of the door frame of an automobile door and guides the raising and lowering of the door glass,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. A vehicle outer side seal lip and a vehicle inner side seal lip are provided, and the vehicle outer side surface and the vehicle inner side surface of both side ends of the door glass are sealed by the vehicle outer side seal lip and the vehicle inner side seal lip,
The bottom wall is integrally formed with a bottom wall central portion, and a bottom wall vehicle outer leg and a bottom wall vehicle inner leg at both ends in the width direction of the bottom wall central portion, The side end of the bottom wall central portion is bent and continuous from one end of each bottom wall vehicle inner leg, and the other end of the bottom wall vehicle outer leg and bottom wall vehicle inner leg is respectively connected to the vehicle. Continuing from the base of the outer side wall and the base of the vehicle inner side wall,
A reinforcing protrusion is formed on the outer surface of the outer leg of the bottom wall vehicle, and the reinforcing protrusion can be brought into contact with a channel of the door frame when the glass run is attached to the door frame. Glass run for automobiles.   A bottom wall lip that abuts on the channel is formed from the bottom wall central portion side portion of the outer surface of the bottom wall vehicle outer leg, and the reinforcing protrusion is disposed between the bottom wall lip and the bottom wall vehicle outer leg. The glass run for automobiles according to claim 1 formed.   3. The automotive vehicle according to claim 1, wherein the central portion of the bottom wall is bent near the center of the central portion of the bottom wall so that the inside of the vehicle is substantially horizontal with respect to the door glass and the outside of the vehicle is inclined upward. Glass run.   The glass run for an automobile according to any one of claims 1 to 3, wherein the reinforcing protrusions are formed on the bottom wall car outer leg part and the bottom wall car inner leg part.   The central portion of the bottom wall is formed such that the thickness on the inner side of the vehicle is thicker than the thickness on the outer side of the vehicle, and a notch is provided on the outer surface that is bent and continuous between the central portion of the bottom wall and the inner leg of the bottom wall. The glass run for automobiles according to any one of claims 1 to 4.

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