JP2021123314A - Glass run for automobile - Google Patents

Abstract

To provide a glass run for automobile in which deterioration in acoustic insulation between itself and a door glass is suppressed even during high speed travel of a vehicle and so on, 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; an inner lip 90 which is obliquely extended to the door glass G side from the in-vehicle side wall part 40; and a hollow outer lip part 80 which is provided on the door glass G side of the out-vehicle side wall part 60, and forms a closed cross-sectional shape together with the out-vehicle side wall part 60 in a cross-sectional view of the vertical guide part 21.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 glass run structure of a vehicle in which the sealing performance is improved by providing a plurality of sealing lips that hold both sides of the door glass from the inside and outside.

In the door glass support structure by the glass run, for example, when the vehicle is traveling at high speed, the speed difference between the airflow inside and outside the door glass becomes large, and the speed difference of the airflow causes the door glass to move to the outside of the vehicle with respect to the door glass. The power to suck out works. By acting such a force on the door glass, the door glass moves toward the outside of the vehicle while being supported by the glass run. As a result, a gap is created between the door glass and the seal lip (inner lip) inside the glass run.

When a gap is created between the door glass and the inner lip, the seal lip in contact with the door glass is mainly the outer seal lip (outer lip) between the door glass and the glass run, and the door glass becomes The number of seal lips in contact is reduced. Since the seal lip has a function of shielding the outside of the vehicle and the space inside the vehicle in contact with the door glass, when the number of seal lips in contact with the door glass decreases, the portion of the door glass held by the glass run. In, the sound insulation is lowered, and it becomes difficult to obtain quietness inside the vehicle with respect to the sound outside the vehicle.

The present invention has been made in view of the above-mentioned problems, and it is possible to suppress a decrease in sound insulation between the vehicle and the door glass even when the vehicle is traveling at high speed, and the inside of the vehicle is quiet with respect to the sound outside the vehicle. It is an object of the present invention to provide a glass run for automobiles which can improve.

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 car having a groove-shaped cross section together with the inner side wall of the car, the inner lip extending diagonally from the inner side wall of the car to the door glass side, and the door glass side of the outer side wall of the car. It has a hollow outer lip portion having a closed cross-sectional shape together with the vehicle outer side wall portion in a cross-sectional view of the vertical guide portion.

Further, in the automobile glass run according to another aspect of the present invention, in the automobile glass run, the outer lip portion is the outer lip main body portion obliquely extending from the outer side wall portion of the vehicle to the door glass side. A locking portion that is projected from the outer side wall portion of the vehicle and locks the tip edge portion of the outer lip main body portion is included, and the outer lip main body portion is locked to the locking portion. It has a closed cross-sectional shape together with the outer side wall portion of the vehicle in a cross-sectional view of the vertical guide portion.

Further, in the automobile glass run according to another aspect of the present invention, in the automobile glass run, the inner lip is a cross-sectional view of a base portion which is a root portion with respect to the inner side wall portion of the vehicle and a vertical guide portion. The intermediate portion formed in the extending shape of the above and formed thicker than the base portion, and the intermediate portion formed on the tip side in the cross-sectional view of the vertical guide portion and formed thinner than the intermediate portion. It includes a thin portion on the tip side and a tip portion formed to be thicker than the thin portion on the tip side, which is a tip portion in a cross-sectional view of the vertical guide portion.

According to the present invention, it is possible to suppress a decrease in sound insulation between the door glass and the vehicle even when the vehicle is traveling at high speed, and it is possible to improve the quietness inside the vehicle with respect to the sound outside the vehicle.

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. It is the AA end view of FIG. 1 which shows typically the main part in the state which removed the door glass of the glass run for automobiles which concerns on 1st Embodiment of this invention. It is the AA end view of FIG. 1 which shows typically the main part of the glass run for automobiles which concerns on 1st Embodiment of this invention. It is explanatory drawing about the action by the glass run for automobiles which concerns on 1st Embodiment of this invention. It is an end view which shows typically the main part in the state which removed the door glass of the glass run for automobiles which concerns on 2nd Embodiment of this invention. It is an end view which shows typically the main part of the glass run for automobiles which concerns on 2nd 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.

<First Embodiment>
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 first embodiment of the present invention. 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 90 that extends diagonally from the side wall portion 40 inside the vehicle to the door glass G side as a seal lip. The inner lip 90 extends diagonally from the inner side wall portion 40 of the vehicle toward the base portion 30. That is, the inner lip 90 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, one inner lip 90 is provided, and the inner lip 90 extends from the front edge portion of the vehicle inner side wall portion 40.

The inner lip 90 is configured so that the thickness changes from the base portion 91 to the tip portion 92. The inner lip 90 has a base portion 91 connected to the inner side wall portion 40 of the vehicle as a thin portion, an intermediate portion 93 as a thick portion, a tip portion 92 as a thick portion, and between the intermediate portion 93 and the tip portion 92. It is configured to have a thin portion 94 on the tip side. The inner lip 90 is configured so as to be easily deformed as a whole with the relatively thin base 91 as the starting point of bending.

That is, the inner lip 90 has an intermediate portion between the base portion 91, 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 thicker than the base portion 91. And the tip side thin portion 94 formed on the tip side of the vertical guide portion 21 in the cross-sectional view with respect to the intermediate portion 93 and formed thinner than the intermediate portion 93, and the tip portion of the vertical guide portion 21 in the cross-sectional view. Includes a tip portion 92 formed thicker than the tip side thin portion 94. The vertical guide portion 21 is configured so that the tip portion 92 of the inner lip 90 is mainly brought into surface contact with the door glass G.

The thickness of the intermediate portion 93 is gradually reduced from the central portion to the base 91 side and the tip side thin portion 94 side in a cross-sectional view. The tip portion 92 is a portion in which the plate thickness is gradually increased from the tip side thin portion 94 to the tip side in a cross-sectional view, and forms a bump-shaped portion at the tip portion of the inner lip 90.

The glass run 20 is provided as a seal lip on the door glass G side (inside in the vehicle width direction) of the vehicle outer side wall portion 60, and has a closed cross-sectional shape together with the vehicle outer side wall portion 60 in a cross-sectional view of the vertical guide portion 21. It has a shaped outer lip portion 80.

The outer lip portion 80 is formed in the middle portion of the vehicle outer side wall portion 60 in the front-rear direction. The outer lip portion 80 has a lip surface portion 82 which is a plate-shaped portion having a convex curved shape inward while connecting both front and rear edge portions to the vehicle outer side wall portion 60. The hollow portion 81 is formed together with the hollow portion 81. That is, at the forming portion of the outer lip portion 80, the extension direction of the vertical guide portion 21 is set to the tubular axis direction by the intermediate portion in the front-rear direction of the vehicle outer side wall portion 60 and the lip surface portion 82, and the vehicle outer side wall portion 60 is formed. A tubular part that bulges inward in the vehicle width direction is formed. The lip surface portion 82 is formed so that the cross-sectional shape of the hollow portion 81 is a substantially elliptical shape (substantially elongated hole shape) with the longitudinal direction in the front-rear direction.

The lip surface portion 82 has a hem-spreading shape at the base portion with respect to the vehicle outer side wall portion 60 in a cross-sectional view. That is, the lip surface portion 82 has a shape in which the thickness of the lip surface portion 82 is gradually increased from the intermediate portion to the vehicle outer side wall portion 60 side at the base portions on both the front and rear sides thereof in the cross-sectional view.

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 90, is an umbrella-shaped portion having an integral curved shape that is convex to the front side extending inward and outward in the vehicle width direction from the front edge portion of the vehicle inner side wall portion 40. Is forming. The covered surface portion 45 and the inner lip 90 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 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, it is possible to suppress a decrease in sound insulation between the door glass G and the glass run 20 even when the vehicle is traveling at high speed, and the outside of the vehicle It is possible to improve the quietness inside the vehicle against sound.

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 inner side wall portion 40 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 outer side wall portion 60 of the vehicle to enter the vehicle.

Further, in the support structure of the door glass G by the glass run 20, for example, when the vehicle is traveling at high speed, the speed difference between the airflow inside and outside the door glass G becomes large, and a force for sucking the airflow to the outside of the vehicle acts on the door glass G. When such a force acts on the door glass G, a gap is created between the door glass G and the inner lip 90, and the number of seal lips in contact with the door glass G is reduced, which is caused by the glass run 20. The sound insulation property is lowered at the sandwiched portion of the door glass G, and it becomes difficult to obtain quietness inside the vehicle with respect to the sound outside the vehicle.

Therefore, according to the glass run 20 according to the present embodiment, since the seal lip on the outside of the vehicle has a hollow outer lip portion 80 having a closed cross section together with the side wall portion 60 on the outside of the vehicle, the seal lip is used for the door glass G. As the reaction force, the reaction force on the outside of the vehicle can be increased. As a result, the amount of the door glass G sucked out to the outside of the vehicle can be reduced when the vehicle is traveling at high speed, and the sealing property between the door glass G and the inner lip 90 can be ensured. As a result, it is possible to suppress a decrease in sound insulation in the sandwiched portion of the door glass G due to the glass run 20, and it is possible to improve quietness in the vehicle interior.

Further, the outer lip portion 80 is crushed by the door glass G by receiving the insertion of the door glass G as shown in FIG. 3 from the natural state as shown in FIG. 2, and has a cross-sectional shape. The shape of the hollow portion 81 is deformed into an elongated elongated hole shape in the front-rear direction, and substantially the entire intermediate portion of the lip portion 82 is brought into contact with the door glass G, thereby causing a surface contact state with respect to the door glass G. .. The contact area of the outer lip portion 80 with respect to the door glass G increases as the door glass G is sucked out to the outside of the vehicle by the outer lip portion 80 having such a contact mode. Further, front and rear side portions of the contact portion of the outer lip portion 80 with respect to the door glass G, that is, front and rear side portions of the lip portion 82 exist in the form of a double wall between the door glass G and the vehicle outer side wall portion 60. Will be done. From these facts, it is possible to make it difficult for sound to pass between the outer surface of the door glass G and the outer side wall portion 60 of the vehicle, improve the sound insulation, and effectively improve the quietness in the vehicle. be able to.

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 contact of the inner lip 90 with the door glass G and the surface contact of the outer lip portion 80. In particular, the outer lip 80 part is a part that generates a larger reaction force than the fin-shaped seal lip such as the inner lip 90, so when the door glass G is displaced to the outside of the vehicle at high speeds or the like. Also, the door glass G can be reliably held by being deformed following the left-right swing of 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 inner lip 90 from the inside and repulsively pressed by the intermediate portion of the lip surface 82 in the cross-sectional view of the outer lip 80 from the outside. Will be done. As a result, even if the door glass G swings left and right while the vehicle is running, it is suppressed that the seal lips (inner lip 90, outer lip portion 80) provided on the inside and outside are separated from the door glass G, and the door glass G is 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, the inner lip 90 and the outer lip portion 80 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 travel. In order to maintain the above, the rattling of the door glass G can be suppressed, and the rattling noise between the inner lip 90 and the outer lip portion 80 and the door glass G can be suppressed. In particular, even when the door glass G is sucked outward due to the pressure difference between the inside and outside of the vehicle, the outer lip portion 80 resists the displacement of the door glass G to the outside of the vehicle, and the rattling of the door glass G is suppressed. .. As described above, according to the glass run 20 of the present embodiment, the door glass G can be supported from the outside by the reaction force of the outer lip portion 80, and the inner lip 90 absorbs some displacement, so that the door glass The door glass G can be reliably held without the G rattling.

Further, the inner lip 90 of the present embodiment has a relatively thin base portion 91, a relatively thick intermediate portion 93, a thin tip side thin portion 94 that is thinner than the intermediate portion 93, and a relatively thick tip. It has a part 92 and. According to such a configuration, while obtaining flexibility at the root portion of the inner lip 90, relatively high rigidity can be obtained at the intermediate portion in the extending direction of the seal lip in the cross-sectional view, and the inner lip can be obtained. The rigidity of the tip edge portion of the 90 can be improved, and the relatively thick tip portion 92 can act as a barrier in the sound intrusion path 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, the inner lip 90 has a relatively thick tip portion 92 at the tip edge portion thereof. According to such a configuration, the rigidity and strength of the tip edge portion of the inner lip 90 can be improved. As a result, in the inner lip 90 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 90.

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 90 and the outer lip portion 80.

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.

<Second Embodiment>
5 and 6 are views showing a configuration example of the glass run 20 according to the second embodiment of the present invention. In the description of the present embodiment, the same reference numerals will be given to the contents common to the above-described embodiments, and the description thereof will be omitted. This embodiment is different from the first embodiment described above in that the outer lip portion is configured.

As shown in FIGS. 5 and 6, the outer lip portion 100 according to the present embodiment includes an outer lip main body portion 110 extending diagonally from the vehicle outer side wall portion 60 to the door glass G side and a vehicle outer side wall portion 60. Includes a locking protrusion 106 as a locking portion for locking the tip edge of the outer lip body 110. Then, the outer lip portion 100 forms a closed cross-sectional shape together with the vehicle outer side wall portion 60 in the cross-sectional view of the vertical guide portion 21 by locking the outer lip main body portion 110 to the locking protrusion 106.

The outer lip main body 110 extends obliquely from the outer side wall 60 of the vehicle toward the base 30. The thickness of the outer lip main body 110 is substantially constant from the base 101 to the tip 103, which is the root of the outer side wall 60 of the vehicle, and the central portion of the base 101 and the tip 103 in cross-sectional view is the inflection 102. As a whole, it has a curved shape with the inside in the vehicle width direction as the convex side. The outer lip main body 110 has a rising piece 104 from the base 101 to the bending portion 102 and an engaging piece 105 from the bending portion 102 to the tip portion 103, and the outer side wall portion 60 of the vehicle is viewed in cross section. The angle formed by the rising piece 104 and the rising piece 104 is an acute angle, and the angle formed by the rising piece 104 and the engaging piece 105 is an obtuse angle.

The locking protrusion 106 is provided as a receiving portion of the outer lip main body 110 on the door glass G side from a substantially central portion in the front-rear direction of the outer side wall portion 60 of the vehicle. The locking protrusion 106 is a protrusion portion along the extending direction of the vertical guide portion, and on the front side thereof, that is, on the outer lip main body 110 side, together with the vehicle outer side wall 60, the tip 103 of the outer lip main body 110. A groove (recess) for fitting is formed.

The outer lip portion 100 forms a hollow portion 107 together with the vehicle outer side wall portion 60 by engaging the tip portion 103 of the outer lip main body portion 110 with the locking protrusion 106. That is, in the forming portion of the outer lip portion 100, the vertical guide portion is formed by the intermediate portion in the front-rear direction of the vehicle outer side wall portion 60 and the outer lip main body portion 110 in which the tip portion 103 is locked to the locking protrusion 106. The extension direction of 21 is set to the tubular axis direction, and a tubular portion of the outer side wall portion 60 of the vehicle is formed so as to bulge inward in the vehicle width direction. The outer lip main body 110 is formed so that the cross-sectional shape of the hollow portion 107 is a mountain shape with the door glass G side as the top side.

When the door glass G is inserted into the glass run 20, the outer lip portion 100 locks the outer lip main body 110 to the locking protrusion 106 to form a hollow portion 107 (see FIG. 6). Further, the outer lip portion 100 is pressed by the door glass G to deform the cross-sectional shape of the hollow portion 107, causing the outer lip main body portion 110 to be in surface contact with the door glass G.

Further, from the vehicle inner side wall portion 40 of the glass run 20, the inner lip 90 extends diagonally toward the base portion 30 and the tip portion 92 of the inner lip 90 bullets onto the door glass G, as in the first embodiment. I'm in contact. The door glass G is repulsively pressed from the inside of the vehicle by the tip portion 92 of the inner lip 90, and is held without rattling inside or outside.

According to the glass run 20 of the present embodiment having the above-described configuration, it is possible to suppress a decrease in sound insulation between the door glass G and the glass run 20 as in the configuration of the first embodiment. It is possible to improve the quietness inside the vehicle against the sound outside the vehicle. That is, since the outer lip portion 100 having a closed cross section is provided together with the vehicle outer side wall portion 60, the reaction force on the outside of the vehicle can be increased on the door glass G. The amount of suction to the outside can be reduced, and the sealing property between the door glass G and the inner lip 90 can be ensured. As a result, it is possible to suppress a decrease in sound insulation in the sandwiched portion of the door glass G due to the glass run 20, and it is possible to improve quietness in the vehicle interior.

Further, the outer lip portion 100 is pressed by the door glass G and locks the outer lip main body 110 by receiving the insertion of the door glass G as shown in FIG. 6 from the natural state as shown in FIG. It is locked to the protrusion 106 to form the hollow portion 107, and in the cross-sectional shape, the intermediate portion of the outer lip main body 110 is brought into contact with the door glass G to bring the surface contact state with respect to the door glass G. It's happening. As the door glass G is sucked out to the outside of the vehicle by the outer lip portion 100 having such a contact mode, the contact area of the outer lip portion 100 with the door glass G increases. As a result, it is possible to make it difficult for sound to pass between the outer surface of the door glass G and the outer side wall portion 60 of the vehicle, improve the sound insulation, and effectively improve the quietness in the vehicle. can.

Further, according to the glass run 20 of the present embodiment, since the hollow portion 107 is formed by locking the fin-shaped outer lip main body 110 to the locking protrusion 106, the first embodiment Good moldability can be obtained for the outer lip portion 100 as compared with the configuration in which the hollow portion 81 is formed together with the vehicle outer side wall portion 60 in a cross-sectional view in the molded state (natural state) of the glass run 20 like the outer lip portion 80. .. That is, rather than a portion having a closed cross section together with the vehicle outer side wall portion 60 like the lip portion 82 of the first embodiment, the vehicle outer side wall portion 60 is formed in a cross-sectional view like the outer lip main body portion 110 of the present embodiment. On the other hand, a shape portion having one end separated gives a higher degree of freedom in molding. As a result, for example, the shape (for example, plate thickness) of the outer lip main body 110 can be easily adjusted according to the vehicle type, the portion of the glass run 20, and the like, and high versatility can be obtained.

Further, according to the glass run 20 of the present embodiment, there is an advantage that the outer lip portion 100 can be easily cooled in the cooling step of the manufacturing process of the glass run 20 as compared with the outer lip portion 80 of the first embodiment. That is, in the manufacturing process of the glass run 20, after heating and molding an elastic material such as rubber, it is cooled by cooling water in the cooling step, but the outer lip main body 110 is a fin-shaped portion. Therefore, it is easier to obtain the cooling action by the cooling water as compared with the outer lip portion 80 which is closed by the lip portion 82 together with the vehicle outer side wall portion 60.

Each embodiment of the present invention described above is an example, and the present invention is not limited to the above-described embodiment. Therefore, it goes without saying that even in the form other than the above-described embodiments, 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 each of the above-described embodiments, the glass run 20 has one inner lip 90 as a seal lip on the inner side in the vehicle width direction, but the number of inner lips is not particularly limited. For example, the glass run 20 may have a configuration in which two or more inner lips 90 are provided.

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 60 Car outer side wall 61, 62 Positioning protrusion 63 Water stop piece 80 Outer lip 81 Hollow 82 Lip 90 Inner lip 91 Base 92 Tip 93 Middle 94 Tip side thin part 100 Outer lip part 101 Base part 102 Curved part 103 Tip part 104 Rising piece 105 Engagement piece 106 Locking protrusion (locking part)
107 Hollow part 110 Outer lip body part

Claims (3)

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,
An automobile glass provided on the door glass side of the outer side wall portion of the vehicle and having a hollow outer lip portion having a closed cross-sectional shape together with the outer side wall portion of the vehicle in a cross-sectional view of the vertical guide portion. run. The outer lip portion is
The outer lip main body extending diagonally from the outer side wall of the vehicle to the door glass side,
A locking portion that is projected from the outer side wall portion of the vehicle and that locks the tip edge portion of the outer lip main body portion is included.
The automobile use according to claim 1, wherein the outer lip main body portion is locked to the locking portion to form a closed cross-sectional shape together with the vehicle outer side wall portion in a cross-sectional view of the vertical guide portion. Glass run. The inner lip
The base portion, which is the root portion with respect to the inner side wall portion of the vehicle, and
An intermediate portion having an extended shape in a cross-sectional view of the vertical guide portion and formed thicker than the base portion, and an intermediate portion formed thicker than the base portion.
A thin portion on the tip side formed on the tip side of the intermediate portion in a cross-sectional view of the vertical guide portion and formed thinner than the intermediate portion, and a thin portion on the tip side.
The automobile glass run according to claim 1 or 2, wherein the tip portion of the vertical guide portion in a cross-sectional view is included, and the tip portion is formed thicker than the thin portion on the tip side. ..

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