JP2021123313A - Glass run for automobile - Google Patents

Abstract

To provide a glass run for automobile in which acoustic insulation between itself and a door glass is improved, and quietness inside an automobile against sounds outside the automobile is improved.SOLUTION: A glass run 20 is attached to an inner peripheral side of a door frame for an automobile door, and has a vertical guide part 21 which guides lifting and lowering of a door glass G that is so provided on the automobile door as to be capable of lifting and lowering. The vertical guide part 21 has: a stem 30; an in-vehicle side wall part 40 extended from an in-vehicle side of the stem 30; an out-vehicle side wall part 60 which is extended from an out-vehicle side of the stem 30, and forms a groove-shaped cross-sectional shape together with the stem 30 and the in-vehicle side wall part 40; inner lips 50, 50 and an outer lip 70 as a seal lip. The seal lip includes a base part 51, 71 which is a root portion with respect to the in-vehicle side wall part 40 or the out-vehicle side wall part 60, and an intermediate part 52, 72 which is so formed as to be thinner than the base part 51, 71, and is so configured as to bring the intermediate part 52, 72 into surface contact with the door glass G.SELECTED DRAWING: Figure 3

Description

The present invention relates to an automobile glass run that is attached to the inner circumference of a door frame of an automobile door and guides the raising and lowering of a vehicle door glass. More specifically, the present invention relates to an automobile glass run that is mounted on a vertical frame portion of a vehicle door frame and has a vertical guide portion that guides the door glass in the vertical direction.

Conventionally, in a vehicle door frame which is a frame constituting an automobile door, a glass run is provided along the inner circumference of the frame. This glass run is a member formed in an elongated shape along the vehicle door frame by an elastic material such as rubber, and is fitted to a door frame having a groove-shaped cross section while holding the peripheral edge of the door glass from inside and outside. Is also configured so that it does not interfere with the raising and lowering of the door glass. Further, the glass run is provided in such a manner that the edge portion of the door glass is sandwiched between the inner and outer seal lips, and has a function of blocking the sound outside the vehicle from the inside of the vehicle.

As a conventional technique relating to such a glass run, for example, there is one disclosed in Patent Document 1.

JP-A-2018-192933

Patent Document 1 describes a vehicle glass run structure in which sealing performance is improved by providing a plurality of seal lips that hold both sides of a vehicle door glass from inside and outside.

However, in the above-mentioned conventional technique, sufficient rigidity cannot be obtained in the seal lip, and the contact between the vehicle door glass and the seal lip is a point contact in the cross-sectional shape, that is, a line contact as the seal lip. Therefore, the sound outside the vehicle easily passes between the glass run and the vehicle door glass, and there is room for improvement in terms of quietness. That is, according to the above-mentioned conventional structure, since the seal lip is in line contact with the surface of the door glass, the sound can easily pass through the contact portion of the seal lip with respect to the door glass, and the sound outside the vehicle can be heard from the glass run. It is difficult to obtain quietness in the car by wrapping around the edge of the door glass sandwiched between the two.

The present invention has been made in view of the above-mentioned problems, and is capable of improving the sound insulation between the door glass and the inside of the vehicle and improving the quietness of the inside of the vehicle with respect to the sound outside the vehicle. The purpose is to provide.

The automobile glass run according to the present invention is attached to the inner peripheral side of the door frame of the automobile door, and has an automobile glass having a vertical guide portion for guiding the raising and lowering of the door glass provided on the automobile door so as to be able to move up and down. The vertical guide portion is a run, the base portion fitted to the door frame, the vehicle inner side wall portion extending from the inside of the vehicle of the base, and the base portion extending from the outside of the vehicle of the base. And the outer side wall of the vehicle having a groove-shaped cross section together with the inner side wall of the vehicle, the inner lip extending diagonally from the inner side wall of the vehicle to the door glass side, and the outer side wall of the vehicle to the door glass side. It has an outer lip that extends diagonally to the door, and at least one of the inner lip and the outer lip has a base portion that is a root portion with respect to the inner side wall portion of the vehicle or the outer side wall portion of the vehicle, and the vertical guide. It is configured to form an intermediate portion of an extended shape in a cross-sectional view of the portion, including an intermediate portion formed thinner than the base portion, and to bring the intermediate portion into surface contact with the door glass.

Further, in the automobile glass run according to another aspect of the present invention, in the automobile glass run, at least one of the inner lip and the outer lip has a tip portion of the vertical guide portion in a cross-sectional view. None It has a tip portion formed thicker than the intermediate portion.

According to the present invention, the sound insulation between the door glass and the door glass can be improved, and the quietness inside the vehicle with respect to the sound outside the vehicle can be improved.

It is a front view which shows the vehicle door provided with the glass run for an automobile which concerns on embodiment of this invention. FIG. 5 is an end view of AA of FIG. 1 schematically showing a main part of a glass run for an automobile according to an embodiment of the present invention in a state where the door glass is removed. It is the AA end view of FIG. 1 which shows typically the main part of the glass run for automobiles which concerns on embodiment of this invention. It is explanatory drawing about the action by the glass run for automobiles which concerns on embodiment of this invention.

The present invention is the shape of a lip portion (seal lip) that serves as a contact portion with respect to the door glass in an automobile glass run provided in a manner in which an edge portion of the door glass is sandwiched between the door frame and the door glass in an automobile door. By devising the above, it is intended to improve the quietness inside the vehicle against the sound outside the vehicle. Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawings below, the same or similar parts are designated by the same reference numerals. However, the drawings are schematic, and the dimensional ratios of each part do not always match the actual ones. In addition, it goes without saying that the dimensional relationships and different parts are included between the drawings.

1 to 3 are diagrams showing a configuration example of an automobile glass run (hereinafter, simply referred to as “glass run”) 20 according to the present embodiment. As shown in FIG. 1, the glass run 20 is attached to the inner peripheral side of the door frame 10 of the vehicle door 1 which is an automobile door, and is provided on the vehicle door 1 so as to be able to move up and down. (Hereinafter, it is simply referred to as "door glass".) It guides the ascent and descent of G.

The vehicle door 1 has a door main body portion 1a which is a portion attached to a vehicle body of an automobile, and a window frame portion 1b formed on the upper side of the door main body portion 1a. The window frame portion 1b has an edge shape substantially following a trapezoidal shape due to the front side, upper side, and rear side edges, and is covered with the door glass G formed of a glass plate together with the upper edge portion of the door body portion 1a. Form a window opening. The door glass G is provided so as to be able to move up and down with respect to the door body 1a by an elevating mechanism using a motor or the like as a drive source so as to appear and disappear from the opening of the upper edge of the door body 1a.

The door frame 10 has vertical frame portions 11 extending in the vertical direction before and after the door frame 10. The vertical frame portion 11 is formed of a plate-shaped member so as to form a predetermined bent shape in a cross-sectional view. As shown in FIG. 2, the vertical frame portion 11 has a base wall 12 extending in the substantially vehicle width direction to form a base of the vertical frame portion 11 in a cross-sectional view (planar cross-sectional view), and the inside of the base wall 12 ( The inner piece 13 extending from the end (inside in the vehicle width direction) toward the front of the vehicle, and the outside extending from the outside (outside in the vehicle width direction) end of the base wall 12 toward the front of the vehicle. It has a piece 16.

The vertical frame portion 11 has a substantially constant cross-sectional shape in the stretching direction, and in the cross-sectional view, the base wall 12, the inner piece 13 and the outer piece 16 are substantially “co” with the door glass G side as the open side. It forms a character. The vertical frame portion 11 shown in FIG. 2 is a vertical frame portion 11 on the rear side of the door frame 10, and the front side is the open side. On the other hand, in the case of the vertical frame portion 11 on the front side of the door frame 10, the shape in the plan sectional view is substantially symmetrical (substantially symmetrical in the drawing) with the aspect shown in FIG. In FIG. 2, the upper side indicated by "OUT" is the outer side in the vehicle width direction, the opposite side is the inner side in the vehicle width direction, the left side indicated by "FR" is the front side of the vehicle, and the opposite side is the rear side of the vehicle. Is.

The inner piece 13 extends forward from the base wall 12 and includes engaging recesses 14 and 15 that engage with the glass run 20. The engaging recesses 14 and 15 have a shape that bulges inward in the vehicle width direction, so that the engaging recesses 14 and 15 follow the extending direction of the vertical frame portion 11 with respect to the inside of the vertical frame portion 11 into which the glass run 20 is fitted. It is formed as a portion forming a groove. The inner piece 13 has two engaging recesses 14 and 15 formed at intervals in the front-rear direction. In the inner piece 13, the rear engaging recess 14 is formed on the base wall 12 side (rear side), and the front engaging recess 15 is engaged in a portion on the front side of the rear engaging recess 14. It is formed so as to form a groove deeper than the joint recess 14.

The outer piece 16 extends forward from the base wall 12 to the vicinity of the end portion of the door panel P along the vehicle door 1, and forms a fitting portion 17 folded inward in the vehicle width direction at the front edge portion. .. The fitting portion 17 forms a majority portion on the front side of the outer piece 16 formed in a substantially planar shape so as to be along the front-rear direction in the cross-sectional view as a whole. In the present embodiment, the outer piece 16 has approximately half the size of the inner piece 13 in the front-rear direction.

The glass run 20 is an integrally molded member formed in an elongated shape along the door frame 10 by an elastic material such as rubber, and is fitted to the door frame 10 having a groove-shaped cross section to form a peripheral portion of the door glass G. It is configured so as not to hinder the raising and lowering of the door glass G while holding it from inside and outside. The glass run 20 has a substantially constant cross-sectional shape in the stretching direction. Further, the glass run 20 is provided in such a manner that the edge portion of the door glass G is sandwiched between the inner and outer seal lips, and has a function of blocking the sound outside the vehicle from the inside of the vehicle.

The glass run 20 is fitted and mounted on the vertical frame portion 11 of the door frame 10, and has a vertical guide portion 21 that guides the door glass G in the vertical direction. The vertical guide portion 21 includes a base portion 30 fitted to the vertical frame portion 11 of the door frame 10, a vehicle inner side wall portion 40 extending from the inside of the base portion 30 (inside in the vehicle width direction) toward the front, and a vehicle inner side wall portion 40. The base portion 30 extends from the outside of the vehicle (outside in the vehicle width direction) toward the front, and has a vehicle outer side wall portion 60 having a groove-shaped cross-sectional shape together with the base portion 30 and the vehicle inner side wall portion 40.

That is, the vertical guide portion 21 of the glass run 20 has a substantially “U” shape with the door glass G side as the open side due to the base portion 30, the vehicle inner side wall portion 40, and the vehicle outer side wall portion 60 in a cross-sectional view. Eggplant. The vertical guide portion 21 shown in FIG. 2 is a vertical guide portion 21 on the rear side of the door frame 10, and the front side is an open side. On the other hand, in the case of the vertical guide portion 21 on the front side of the door frame 10, the shape in the plan sectional view is substantially symmetrical (substantially symmetrical in the drawing) with the aspect shown in FIG.

The vertical guide portion 21 is fitted to the vertical frame portion 11 of the door frame 10 so that its substantially "U" -shaped cross-sectional shape follows the cross-sectional shape of the vertical frame portion 11. .. That is, in the state where the vertical guide portion 21 is fitted to the vertical frame portion 11, the base portion 30, the vehicle inner side wall portion 40, and the vehicle outer side wall portion 60 are attached to the base wall 12, the inner piece 13, and the vertical frame portion 11, respectively. It is in a state along the outer piece 16.

In this embodiment, as shown in FIGS. 1 to 3, regarding the description of the glass run 20, the plan sectional view shape of the vertical frame portion 11 and the vertical guide portion 21 for the rear portion of the door frame 10 is used. However, the front portion of the door frame 10 has a shape substantially anteroposterior symmetry (approximately left-right symmetry in the drawing) with the rear portion of the door frame 10 in a plan sectional view. Further, the door frame 10 has an upper frame portion that connects the upper ends of the front and rear vertical frame portions 11, and the glass run 20 is also provided in the upper frame portion in the same manner as the vertical frame portion 11. There is. In the vertical guide portion 21 corresponding to the front and rear vertical frame portions 11, the glass run 20 receives a sliding action due to the raising and lowering operation of the door glass G while holding the state of sandwiching the door glass G, and is placed on the door frame 10. The upper side portion corresponding to the frame portion is subjected to a sliding action due to the raising and lowering operation of the door glass G as a portion to be inserted and removed from the door glass G.

The glass run 20 has an inner lip 50 that extends diagonally from the side wall portion 40 on the inner side of the vehicle to the door glass G side as a seal lip. The inner lip 50 extends diagonally from the inner side wall portion 40 of the vehicle toward the base portion 30. That is, the inner lip 50 is a plate-shaped portion extending substantially rearward and diagonally outward from the outer surface of the inner side wall portion 40 of the vehicle in the vehicle width direction.

In the present embodiment, two inner lips 50, 50 are provided at predetermined intervals in the front-rear direction. In the front-rear direction, the front inner lip 50 extends from the front edge of the vehicle inner side wall 40, and the rear inner lip 50 extends from the substantially central portion of the vehicle inner side wall 40. .. The front and rear inner lips 50 and 50 have substantially the same shape as each other as a protruding shape (cross-sectional shape) from the inner side wall portion 40 of the vehicle.

The inner lip 50 is configured so that the thickness changes from the base portion 51 to the tip portion 53. The inner lip 50 has a base portion 51 connected to the inner side wall portion 40 of the vehicle as a thick portion, an intermediate portion 52 as a thin portion, and a tip portion 53 as a thick portion.

That is, the inner lip 50 has an intermediate portion between the base portion 51, which is a root portion with respect to the inner side wall portion 40 of the vehicle, and the elongated shape of the vertical guide portion 21 in a cross-sectional view, and is formed thinner than the base portion 51. And the tip portion 53 which forms the tip portion of the vertical guide portion 21 in a cross-sectional view and is formed thicker than the intermediate portion 52. The vertical guide portion 21 is configured so that the intermediate portion 52 of the inner lip 50 is brought into surface contact with the door glass G.

The base portion 51 is gradually increased in thickness from the tip end side of the inner lip 50 to the vehicle inner side wall portion 40 side so as to form a hem-spreading shape in a cross-sectional view. The intermediate portion 52 is a portion that retains the thickness of the front side of the base portion 51 and has a substantially constant plate thickness in a cross-sectional view. The tip portion 53 is a portion in which the plate thickness is gradually increased from the tip side to the tip side of the intermediate portion 52 in a cross-sectional view, and forms a bump-shaped portion at the tip portion of the inner lip 50. As described above, in the cross-sectional view, the inner lip 50 is a relatively thick portion from the base portion 51, which is a relatively thick portion, through the intermediate portion 52, which is a relatively thin portion, from the root side to the tip side. It has a portion 53, and is formed as a portion having a form in which the thickness is smoothly changed in the order of “thick” → “thin” → “thick”.

With this configuration, the inner lip 50 can be bent with the inflection point changing from the thick portion to the thin portion, that is, the connecting portion 54 between the base portion 51 and the intermediate portion 52 as the bending starting point. As shown in FIGS. 2 and 3, the door glass G is inserted between the vehicle inner side wall portion 40 and the vehicle outer side wall portion 60, so that the inner lip 50 is connected to the connecting portion 54 by the contact action of the door glass G. From the connecting portion 54 to the tip portion 53 is tilted toward the inner side wall portion 40 of the vehicle with the bending starting point. At this time, an elastic force is generated in the connecting portion 54 to return to the original state, and the elastic force acts as a force for bringing the intermediate portion 52 and the tip portion 53 into contact with the door glass G.

In this way, the inner lip 50 is configured to be elastically contacted with the door glass G, and further, the inner lip 50 is configured to be bendable starting from the connecting portion 54, thereby realizing surface contact between the inner lip 50 and the door glass G. In the inner lip 50, the relatively thick base portion 51 can obtain high rigidity at the root portion of the inner lip 50, and the relatively thin middle portion 52 can obtain flexibility. Due to the flexibility, substantially the entire intermediate portion 52 can be a contact portion with respect to the door glass G. Thereby, the surface contact action of the inner lip 50 with respect to the door glass G can be obtained.

Further, the inner lip 50 has a relatively thick tip portion 53 at the tip edge portion thereof. According to such a configuration, the rigidity and strength of the tip edge portion of the inner lip 50 can be improved. As a result, in the inner lip 50 that receives the sliding action due to the raising and lowering operation of the door glass G, it is possible to suppress the tip edge portion from being worn out, and it is possible to suppress the deterioration of the inner lip 50.

Further, the vehicle inner side wall portion 40 projects the hook pieces 41 and 42 toward the front of the vehicle inside the vehicle on the inner side in the vehicle width direction. The hook pieces 41 and 42 are formed in a tapered shape from the base portion 43 connected to the vehicle inner side wall portion 40 to the tip portion 44. That is, the hook pieces 41 and 42 are made so that the base portions 43 and 43 are thick and the tip portions 44 and 44 are thin, respectively, so that they are not easily deformed.

The hook pieces 41 and 42 are ridge portions that engage with the engaging recesses 14 and 15 of the vertical frame portion 11, respectively, and are spaced apart in the front-rear direction corresponding to the engaging recesses 14 and 15, respectively. It is formed in two places. That is, the hook piece 41 on the rear side is formed on the base 30 side (rear side), and the hook piece 42 on the front side is from the hook piece 41 at a portion in front of the hook piece 41 on the rear side. Is also formed to form a high ridge. Then, the hook piece 41 on the rear side is located in the engaging recess 14 on the rear side and serves as a locking portion with respect to the engaging recess 14, and the hook piece 42 on the front side is positioned in the engaging recess 15 on the front side. Then, it becomes a locking portion with respect to the engaging recess 15.

The hook pieces 41 and 42 function as a return by forming the door frame 10 and the glass run 20 in a fitted state and projecting diagonally from the inner side wall portion 40 of the vehicle toward the front of the vehicle. However, the glass run 20 is hard to come off from the door frame 10. That is, the hook pieces 41 and 42 are portions that come into contact with the front portions of the engaging recesses 14 and 15, respectively, and the glass run 20 of the glass run 20 in the direction in which the glass run 20 disengages from the door frame 10 with respect to the door frame 10. It functions as a locking part that regulates movement.

Further, in the glass run 20, a covering surface portion 45 is formed on the front edge portion of the vehicle inner side wall portion 40. The covered surface portion 45 is a plate-shaped portion having a curved shape with the front side as a convex side toward the inside in the vehicle width direction from the front edge portion of the vehicle inner side wall portion 40 in a cross-sectional view. In cross-sectional view, the covered surface portion 45, together with the inner lip 50 on the front side, has an umbrella shape that extends inwardly and outwardly from the front edge portion of the inner side wall portion 40 of the vehicle to the front side and is convex to the front side. Forming the part of. The covered surface portion 45 and the inner lip 50 on the front side form a curved surface 45a in which the front surfaces are continuous with each other and the front side is a convex side. The covering surface portion 45 extends inward in the vehicle width direction from the front side of the vehicle inner side wall portion 40, and provides a gap or the like between the component member of the door frame 10 and the glass run 20 on the vehicle width direction outside of the vehicle inner side wall portion 40. It will be the part to be covered from the front side.

Further, the glass run 20 has an outer lip 70 that extends obliquely from the vehicle outer side wall portion 60 to the door glass G side as a seal lip. The outer lip 70 extends diagonally from the outer side wall portion 60 of the vehicle toward the base portion 30. That is, the outer lip 70 is a plate-shaped portion extending substantially rearward and diagonally inward from the inner surface of the outer side wall portion 60 of the vehicle in the vehicle width direction.

In the present embodiment, one outer lip 70 is provided at a substantially central portion in the front-rear direction of the outer side wall portion 60 of the vehicle. The outer lip 70 is formed as a shape portion substantially symmetrical with respect to the rear inner lip 50 of the two inner lips 50, 50 in the vehicle width direction.

The outer lip 70 is configured so that the thickness changes from the base portion 71 to the tip portion 73. The outer lip 70 has a base portion 71 connected to the outer side wall portion 60 of the vehicle as a thick portion, an intermediate portion 72 as a thin portion, and a tip portion 73 as a thick portion.

That is, the outer lip 70 has an intermediate portion between the base portion 71, which is a root portion with respect to the vehicle outer side wall portion 60, and the elongated shape of the vertical guide portion 21 in a cross-sectional view, and is formed thinner than the base portion 71. And the tip portion 73 which forms the tip portion of the vertical guide portion 21 in a cross-sectional view and is formed thicker than the intermediate portion 72. The vertical guide portion 21 is configured so that the intermediate portion 72 of the outer lip 70 is brought into surface contact with the door glass G.

As described above, the outer lip 70, like the inner lip 50, passes from the base portion 71, which is a relatively thick portion, to the intermediate portion 72, which is a relatively thin portion, from the root side to the tip side in the cross-sectional view. It has a tip portion 73 which is a relatively thick portion, and is formed as a portion having a form in which the thickness is smoothly changed from “thick” → “thin” → “thick”.

With this configuration, the outer lip 70 can be bent with the connecting portion 74 between the base portion 71 and the intermediate portion 72 as the bending starting point. As shown in FIGS. 2 and 3, the door glass G is inserted between the vehicle inner side wall portion 40 and the vehicle outer side wall portion 60, so that the outer lip 70 is connected to the connecting portion 74 by the contact action of the door glass G. To the tip portion 73 is tilted toward the outer side wall portion 60 of the vehicle. At this time, an elastic force is generated in the connecting portion 74 to return to the original bent state, and the elastic force acts as a force for bringing the intermediate portion 72 and the tip portion 73 into contact with the door glass G. ..

In this way, the outer lip 70 is configured to be elastically contacted with the door glass G, and further, the outer lip 70 is configured to be bendable starting from the connecting portion 74, thereby realizing surface contact between the outer lip 70 and the door glass G. In the outer lip 70, the relatively thick base 71 can obtain high rigidity at the root portion of the outer lip 70, and the relatively thin middle portion 72 can obtain flexibility. Due to the flexibility, substantially the entire intermediate portion 72 can be a contact portion with respect to the door glass G. Thereby, the surface contact action of the outer lip 70 with respect to the door glass G can be obtained.

Further, the outer lip 70 has a relatively thick tip portion 73 at the tip edge portion thereof. According to such a configuration, the rigidity and strength of the tip edge portion of the outer lip 70 can be improved. As a result, in the outer lip 70 that receives the sliding action due to the raising and lowering operation of the door glass G, it is possible to suppress the tip edge portion from being worn out, and it is possible to suppress the deterioration of the outer lip 70.

Further, the vehicle outer side wall portion 60 has a plurality of positioning protrusions 61 and 62 projecting toward the vehicle outer side on the outer side in the vehicle width direction, and a water stop piece 63 extends from the tip portion.

The positioning protrusion 61 is a ridge portion formed in the middle portion in the front-rear direction of the vehicle outer side wall portion 60, and serves as a locking portion with respect to the tip edge portion of the fitting portion 17 along the outer side of the vehicle outer side wall portion 60. On the outer side of the outer side wall portion 60 of the vehicle in the vehicle width direction, the positioning protrusion 61 has a fitting portion 17 together with a ridge portion 61a formed so as to face the positioning protrusion 61 in the front-rear direction at the rear portion of the outer side wall portion 60 of the vehicle. It forms a recess to be fitted.

A positioning protrusion 62, which is a ridge portion, is formed in front of the positioning protrusion 61. The tip edge portion (front end edge portion) of the door panel P is in contact with a portion between the front and rear positioning protrusions 61 and 62 on the outside of the vehicle outer side wall portion 60 in the vehicle width direction.

The positioning protrusions 61 and 62 are in contact with the fitting portion 17 constituting the door frame 10 and the front end edge of the door panel P to regulate the movement of the glass run 20 in the front-rear direction (horizontal direction in FIG. 3). .. That is, the forward movement of the glass run 20 is restricted by the contact between the front end edge of the door panel P and the positioning protrusion 61. Further, the rearward movement of the glass run 20 is restricted by the contact between the tip end portion of the door panel P and the positioning protrusion 62 and the contact between the fitting portion 17 and the positioning protrusion 61.

Further, in the glass run 20, a water stop piece 63 is extended to the tip edge portion of the outer side wall portion 60 of the vehicle. The water stop piece 63 is a plate-shaped portion extending the front side of the vehicle outer side wall portion 60, and is bent diagonally inward in the vehicle width direction with respect to the main body portion of the vehicle outer side wall portion 60 substantially in the front-rear direction. It is extended. The water stop piece 63 is formed so as to taper from the main body portion side of the vehicle outer side wall portion 60 to the tip edge portion. That is, the water stop piece 63 is tapered in cross-sectional view by gradually reducing the plate thickness from the base portion 64 side to the tip portion 65 side by making the tip portion 65 relatively thin while making the base portion 64 relatively thick. It is formed to form a shape. Due to such a shape, the water stop piece 63 obtains flexibility on the tip portion 65 side while obtaining relatively high rigidity on the base portion 64 side.

The tip edge of the water stop piece 63 is a contact portion with respect to the outer surface of the door glass G in the vehicle width direction. By having the water stop piece 63 in this way, the glass run 20 can surely bring the front edge of the inner side wall portion 40 of the vehicle into contact with the surface of the door glass G, and dust and water from the outside of the vehicle can be removed from the vehicle. Invasion to the inside is reduced as much as possible.

Further, both ends of the base portion 30 in the cross-sectional view of the glass run 20, that is, the corner portions of the vehicle inner side wall portion 40 and the base portion 30, and the inside of the corner portions of the vehicle outer side wall portion 60 and the base portion 30 are viewed in a plan view. The recesses 31 and 32 along a substantially circular shape are formed in the above. The recesses 31 and 32 are groove-shaped portions along the extending direction of the glass run 20. Since the glass run 20 has the recesses 31 and 32, when the glass run 20 is fitted into the door frame 10, the vehicle inner side wall portion 40 and the vehicle outer side wall portion 60 are easily bent inward with respect to the base portion 30, and the glass run 20 can be easily bent inward. It is configured so that it can be transformed into a form that can be fitted.

According to the glass run 20 of the present embodiment having the above configuration, the sound insulation between the door glass G and the glass run 20 can be improved, and the quietness inside the vehicle with respect to the sound outside the vehicle is improved. be able to.

As shown in FIG. 3, a configuration in which a glass run 20 having a substantially “U” shape in a plan sectional view fits the edge of the door glass G in the door frame 10 so as to sandwich the edge of the door glass G. In, the sound outside the vehicle wraps around between the door glass G and the glass run 20 from the outside of the door glass G, and reaches the inside of the vehicle from the inside of the door glass G. That is, as shown by the arrow A1 in FIG. 4, the sound outside the vehicle is heard between the outer surface of the door glass G and the outer side wall portion 60 of the vehicle, between the edge portion of the door glass G and the base portion 30, and the door glass. It follows a path passing between the inner side surface of G and the inner side wall portion 40 of the vehicle to enter the vehicle.

Therefore, according to the glass run 20 according to the present embodiment, since the outer lip 70 and the inner lip 50 can be brought into surface contact with the door glass G, the outer surface of the door glass G and the outer side wall portion 60 of the vehicle can be brought into contact with each other. It is possible to make it difficult for sound to pass between the space and between the inner side surface of the door glass G and the side wall portion 40 inside the vehicle, and it is possible to improve the sound insulation. As a result, it becomes difficult for the sound to pass through the contact portion of the seal lip with respect to the door glass G, and it is possible to prevent the sound outside the vehicle from wrapping around the edge of the door glass G sandwiched between the glass runs 20 and reaching the inside of the vehicle. It can improve the quietness in the car.

Further, the glass run 20 of the present embodiment has relatively thick tip portions 53 and 73 in each of the inner lip 50 and the outer lip 70. According to such a configuration, it is possible to improve the rigidity of the tip edge of each seal lip while obtaining flexibility in the intermediate portion in the extending direction of the seal lip in the cross-sectional view, and the tip is relatively thick. The parts 53 and 73 can act as a barrier in the sound intrusion route outside the vehicle. As a result, the sound insulation of the seal lip can be improved, and the quietness in the vehicle can be effectively improved.

Further, according to the glass run 20 of the present embodiment, the door glass G can be reliably held from inside and outside the vehicle by the surface contact of the inner lip 50 and the outer lip 70 with respect to the door glass G.

Further, as shown in FIG. 3, the hook pieces 41 and 42 of the inner side wall portion 40 of the glass run 20 are engaged with the fitting portions 14 and 15 of the inner piece 13 of the door frame 10, and the outside of the glass run 20 is provided. By engaging the positioning protrusions 61 and 62 of the side wall portion 60 with the fitting portion 17 of the outer piece 16 of the door frame 10 and the edge portion of the door panel P, the glass run 20 is securely positioned and fitted to the door frame 10. Can be made to.

In the fitted state of the glass run 20, the door glass G is repulsively pressed by the intermediate portion 52 which is the thin portion of the inner lips 50 and 50 from the inside, and the intermediate portion 72 which is the thin portion of the outer lip 70 from the outside. Is pressed repulsively by. As a result, even if the door glass G swings left and right while the vehicle is running, the seal lips (inner lip 50, outer lip 70) provided on the inside and outside are suppressed from separating from the door glass G, and the door glass G moves inside and outside. It is held without rattling, and a state in which the door glass G and the glass run 20 are in constant contact can occur. As a result, it is possible to suppress the formation of a gap between the door glass G and the seal lip in the vertical guide portion 21, maintain or improve the quietness inside the vehicle, and dust from the outside of the vehicle. And water can be prevented from entering. Further, the water stop piece 63 of the outer side wall portion 60 of the glass run 20 is in contact with the door glass G to prevent dust and water from entering, and the door glass G and the glass run 20 can always be kept in contact with each other, which is high. Sound insulation is obtained. Further, since the outer lip 70 has a relatively thin intermediate portion 72, it is easily deformed starting from the connecting portion 74, and the operation when the door glass G moves up and down while realizing surface contact with the door glass G is performed. There is no risk of obstruction.

Further, the inner lip 50 and the outer lip 70 are in contact with the door glass G even when the door glass G swings inside and outside the vehicle because the pressure difference between the inside and the outside of the vehicle fluctuates due to a speed change during vehicle traveling. In order to maintain the door glass G, rattling of the door glass G can be suppressed, and rattling noise between the inner lip 50 and the outer lip 70 and the door glass G can be suppressed. As described above, according to the glass run 20 of the present embodiment, the door glass G can be held from the inside by the inner lips 50 and 50, and the outer lip 70 absorbs some displacement, so that the door glass G can be used. The door glass G can be reliably held without rattling.

Regarding the rattling of the door glass G, when sufficient rigidity cannot be obtained for the seal lip of the glass run holding the door glass G, for example, when the vehicle is traveling on a rough road, the door is shaken due to the shaking of the vehicle. The glass G will sway, and a fluttering sound is likely to occur at the support portion of the glass run. The fluttering sound of the door glass G becomes a factor that reduces the quietness in the vehicle.

Therefore, in the glass run 20 of the present embodiment, since the inner lip 50 and the outer lip 70 have relatively thick base portions 51 and 71, the rigidity of the base portion of the seal lip can be improved. As a result, the shaking of the door glass G can be suppressed, and the fluttering noise of the door glass G can be reduced. From such a point as well, according to the glass run 20 according to the present embodiment, it is possible to improve the quietness in the vehicle.

Further, a coating agent containing silicon or the like for reducing the frictional resistance with the door glass G may be applied to the inner peripheral surface of the glass run 20, that is, the portion of the glass run 20 in contact with the door glass G. By applying the coating agent to the inner peripheral surface of the glass run 20, the door glass G can be moved up and down more smoothly in the vertical guide portion 21 while being pressed by the inner lip 50 and the outer lip 70.

The glass run 20 may have a door glass support portion projecting from the base 30 toward the front of the vehicle. The door glass support portion has a substantially rectangular shape in a plan view and can come into contact with the rear end portion G1 of the door glass G to suppress the front-rear swing caused by the door glass G when the vehicle is traveling.

The above-described embodiment of the present invention is an example, and the present invention is not limited to the above-mentioned embodiment. Therefore, it goes without saying that even if the embodiment is other than the above-described embodiment, various changes can be made according to the design and the like as long as the technical idea of the present invention is not deviated.

In the above-described embodiment, the glass run 20 has two inner lips 50 and one outer lip 70 as seal lips, but the number of seal lips is not particularly limited.

Further, in the above-described embodiment, both the inner lip 50 and the outer lip 70 have a relatively thick portion of the base portions 51 and 71, a relatively thin portion of the intermediate portions 52 and 72, and a relatively thick portion. It has tip portions 53 and 73, which are parts of the above, and has a shape in which the wall thickness is changed from "thick" to "thin" to "thick". By adopting the shape as described above, it is possible to obtain the effects of improving the quietness in the vehicle and suppressing the rattling of the door glass G as described above.

G Door glass P Door panel 1 Vehicle door 10 Door frame 11 Vertical frame part 12 Base wall 13 Inner piece 14, 15 Engagement recess 16 Outer piece 17 Fitting part 20 Glass run 21 Vertical guide part 30 Base 31, 32 Fitting recess 40 Car inner side wall 41, 42 Hook piece 43 Base 44 Tip 50, 50 Inner lip 51 Base 52 Middle 53 Tip 54 Connecting 60 Car outer side wall 61, 62 Positioning protrusion 63 Water stop piece 70 Outer lip 71 Base 72 Middle part 73 Tip part 74 Connecting part

Claims (2)

A glass run for automobiles, which is attached to the inner peripheral side of the door frame of an automobile door and has a vertical guide portion for guiding the raising and lowering of the door glass provided on the automobile door so as to be able to move up and down.
The vertical guide portion
The base fitted to the door frame and
The side wall inside the car extending from the inside of the car at the base,
A vehicle outer side wall portion extending from the vehicle outer side of the base portion and forming a groove-shaped cross-sectional shape together with the base portion and the vehicle inner side wall portion.
An inner lip that extends diagonally from the inner side wall of the car to the door glass side,
It has an outer lip that extends diagonally from the outer side wall of the vehicle to the door glass side.
At least one of the inner lip and the outer lip
A base portion that is a root portion with respect to the vehicle inner side wall portion or the vehicle outer side wall portion, and
The vertical guide portion includes an intermediate portion having an extended shape in a cross-sectional view and is formed thinner than the base portion.
An automobile glass run characterized in that the intermediate portion is configured to be in surface contact with the door glass. The first aspect of the present invention is characterized in that at least one of the inner lip and the outer lip has a tip portion formed as a tip portion in a cross-sectional view of the vertical guide portion and is formed thicker than the intermediate portion. The car glass run described.

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