JP7420581B2 - automotive glass run - Google Patents

Description

The present invention relates to an automobile glass run that is attached to the inner periphery of a door frame of an automobile door and guides the raising and lowering of a vehicle door glass. In particular, the present invention relates to a glass run for an automobile that has a vertical guide section that is attached to a vertical frame section of a vehicle door frame and that guides a door glass in the vertical direction.

BACKGROUND ART Conventionally, in a vehicle door frame that is a frame constituting an automobile door, a glass run is provided along the inner periphery of the frame. This glass run is a member made of an elastic material such as rubber and is formed in an elongated shape along the vehicle door frame.It is fitted into the door frame with a grooved cross section and holds the periphery of the door glass from the inside and outside. The structure is also designed so that there is no problem in raising and lowering the door glass. Further, the glass run is provided in such a manner that the edge of the door glass is sandwiched between the inner and outer seal lips, and has the function of blocking sounds from outside the vehicle from inside the vehicle.

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

Japanese Patent Application Publication No. 2018-192933

Patent Document 1 describes a glass run structure for a vehicle that improves sealing performance by providing a plurality of seal lips that hold both sides of a vehicle door glass from the inside and outside.

However, in the above-mentioned conventional technology, 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 for the seal lip. Therefore, sounds from outside the vehicle easily pass between the glass run and the vehicle door glass, and there is room for improvement in terms of quietness. That is, according to the conventional structure described above, since the seal lip is in line contact with the surface of the door glass, sound easily passes through the contact area of the seal lip with the door glass, and the sound from outside the vehicle is transmitted through the glass run. It is difficult to achieve quietness inside the car because the windshield wraps around the edge of the door glass that is sandwiched between the two sides.

The present invention has been made in view of the above-mentioned problems, and provides a glass lamp for an automobile that can improve the sound insulation between the glass lamp and the door glass, and can improve the quietness of the inside of the car against the sounds outside the car. The purpose is to provide

The automotive glass run according to the present invention is attached to the inner peripheral side of a door frame of an automotive door, and has a vertical guide portion that guides the raising and lowering of a door glass that is movably provided on the automotive door. The vertical guide portion includes a base fitted to the door frame, a side wall portion extending from the inside of the vehicle of the base, and a side wall portion of the base extending from the outside of the vehicle. and an outer side wall portion having a groove-shaped cross-sectional shape together with the inner side wall portion, an inner lip extending obliquely from the inner side wall portion toward the door glass, and from the outer side wall portion to the door glass side. an outer lip extending obliquely to the inner lip and the outer lip, at least one of the inner lip and the outer lip having a base portion that is a base portion relative to the inner side wall portion or the outer side wall portion; and an intermediate part formed thinner than the base, the intermediate part being in surface contact with the door glass.

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

According to the present invention, it is possible to improve the sound insulation between the vehicle and the door glass, and it is possible to improve the quietness inside the vehicle relative to the sounds outside the vehicle.

1 is a front view showing a vehicle door equipped with an automotive glass run according to an embodiment of the present invention. FIG. 2 is an end view taken along the line AA in FIG. 1 , schematically showing the main parts of the automotive glass run according to the embodiment of the present invention, with the door glass removed. FIG. 2 is an end view taken along the line AA in FIG. 1 , schematically showing the main parts of the automotive glass run according to the embodiment of the present invention. FIG. 3 is an explanatory diagram of the effect of the automobile glass run according to the embodiment of the present invention.

The present invention provides a glass run for an automobile in which the edge of the door glass is sandwiched between the door frame and the door glass. The aim is to improve the quietness inside the car compared to the sounds outside the car. Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following drawings, the same or similar parts are denoted by the same reference numerals. However, the drawings are schematic and the dimensional ratio of each part does not necessarily match the actual one. Furthermore, it goes without saying that the drawings include mutual dimensional relationships and different parts.

1 to 3 are diagrams showing a configuration example of an automotive 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 a door frame 10 of a vehicle door 1, which is an automobile door, and is a vehicle door glass provided on the vehicle door 1 so as to be movable up and down. (Hereinafter, it will be simply referred to as the "door glass.") It guides the elevation of G.

The vehicle door 1 includes a door main body part 1a that is a part to be attached to the body of an automobile, and a window frame part 1b formed on the upper side of the door main body part 1a. The window frame portion 1b has a substantially trapezoidal edge shape with front, upper, and rear edges, and is covered with a door glass G formed of a glass plate along with the upper edge of the door body portion 1a. form an opening for the window. The door glass G is provided so as to be movable up and down with respect to the door main body 1a by a lifting mechanism using a motor or the like as a drive source so as to appear and retract from an opening at the upper edge of the door main body 1a.

The door frame 10 has vertical frame portions 11 extending in the vertical direction at the front and rear thereof. The vertical frame portion 11 is formed of a plate-like member so as to have a predetermined bent shape when viewed in cross section. As shown in FIG. 2, the vertical frame portion 11 includes a base wall 12 that extends substantially in the vehicle width direction and forms the base of the vertical frame portion 11, and an inner side of the base wall 12 ( An inner piece 13 extends toward the front of the vehicle from the end (inside in the vehicle width direction), and an outer piece 13 extends toward the front of the vehicle from the outside (outside in the vehicle width direction) end of the base wall 12. It has a piece 16.

The vertical frame portion 11 has a substantially constant cross-sectional shape in the extending direction, and in cross-sectional view, the base wall 12, the inner piece 13, and the outer piece 16 form a substantially “column shape” with the door glass G side as the open side. ” form a character. The vertical frame part 11 shown in FIG. 2 is the vertical frame part 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 a plan cross-sectional view is approximately symmetrical from front to back (approximately symmetrical from left to right 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. It is.

The inner piece 13 extends forward from the base wall 12 and includes engagement recesses 14 and 15 that engage with the glass run 20. The engagement recesses 14 and 15 have a shape that bulges toward the inside in the vehicle width direction, so that the engagement recesses 14 and 15 are aligned along 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 part forming a groove. The inner piece 13 has two engagement recesses 14 and 15 formed at intervals in the front-rear direction. In the inner piece 13, the rear engagement recess 14 is formed on the base wall 12 side (rear side), and the front engagement recess 15 is formed at a portion on the front side of the rear engagement recess 14. The groove is formed to be deeper than the mating recess 14.

The outer piece 16 extends forward from the base wall 12 along the vehicle door 1 to near the end of the door panel P, and forms a fitting part 17 that is folded back inward in the vehicle width direction at the front edge. . The fitting portion 17 forms a majority portion on the front side of the outer piece 16, which is generally formed in a planar shape along the front-rear direction in a cross-sectional view. In this 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 made of an elastic material such as rubber and formed in an extending shape along the door frame 10. It is configured so that the door glass G can be raised and lowered without any hindrance while being held from the 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 of the door glass G is sandwiched between inner and outer seal lips, and has a function of blocking sounds from outside the vehicle from inside the vehicle.

The glass run 20 has a vertical guide part 21 that is fitted into the vertical frame part 11 of the door frame 10 and guides the door glass G in the vertical direction. The vertical guide portion 21 includes a base portion 30 that is fitted into the vertical frame portion 11 of the door frame 10, and a vehicle-inside side wall portion 40 that extends forward from the vehicle interior side (vehicle widthwise inner side) of the base portion 30. It has an outer side wall 60 that extends forward from the outer side of the base 30 (outside in the vehicle width direction) and has a groove-shaped cross section together with the base 30 and the inner side wall 40 .

That is, the vertical guide portion 21 of the glass run 20 has a substantially U-shape with the door glass G side being the open side, by the base portion 30, the vehicle inner side wall portion 40, and the vehicle outer side wall portion 60 when viewed in cross section. Eggplant. The vertical guide part 21 shown in FIG. 2 is the rear vertical guide part 21 of the door frame 10, and the front side is the 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 a plan cross-sectional view is approximately symmetrical from front to back (approximately symmetrical from left to right in the drawing) with the aspect shown in FIG.

The vertical guide portion 21 is fitted onto 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 part 21 is fitted to the vertical frame part 11, the base part 30, the inner side wall part 40, and the outer side wall part 60 are connected to the base wall 12, the inner piece 13, and the inner piece 13 of the vertical frame part 11, respectively. It is placed along the outer piece 16.

In addition, in this embodiment, as shown in FIGS. 1 to 3, regarding the explanation of the glass run 20, the planar cross-sectional shape of the vertical frame portion 11 and the vertical guide portion 21 of the rear portion of the door frame 10 is used. However, the front portion of the door frame 10 has a shape that is approximately longitudinally symmetrical (approximately left-right symmetrical in the drawing) with the rear portion of the door frame 10 in a plan cross-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 a glass run 20 is provided in the same manner as the vertical frame portion 11 in this upper frame portion as well. There is. In the vertical guide portions 21 corresponding to the front and rear vertical frame portions 11, the glass run 20 receives a sliding movement due to the vertical movement of the door glass G while holding the door glass G in a sandwiched state. The upper side portion corresponding to the frame portion receives the insertion and removal of the door glass G, and is subjected to sliding movement due to the raising and lowering movement of the door glass G.

The glass run 20 has an inner lip 50 as a seal lip that extends obliquely from the vehicle inner side wall portion 40 toward the door glass G side. The inner lip 50 extends diagonally from the vehicle inner side wall portion 40 toward the base portion 30. In other words, the inner lip 50 is a plate-shaped portion that extends from the outer surface of the inner side wall portion 40 in the vehicle width direction toward the rear diagonally outward direction.

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

The inner lip 50 is configured to have a thickness that changes from the base 51 to the tip 53. The inner lip 50 has a base portion 51 connected to the vehicle inner side wall portion 40 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 includes a base 51 that is a base portion relative to the vehicle inner side wall 40 and an intermediate portion 52 that is thinner than the base 51 and forms an intermediate portion of an extended shape in a cross-sectional view of the vertical guide portion 21 . and a distal end portion 53 which forms the distal end 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 to bring the intermediate portion 52 of the inner lip 50 into surface contact with the door glass G.

The base portion 51 has a thickness that gradually increases from the tip end side of the inner lip 50 to the vehicle inner side wall portion 40 side so as to form a widening shape in a cross-sectional view. The intermediate portion 52 is a portion that maintains the thickness of the tip side of the base portion 51 and has a substantially constant thickness when viewed in cross section. The distal end portion 53 is a portion whose plate thickness gradually increases from the distal side to the distal end side of the intermediate portion 52 in a cross-sectional view, and forms a knob-shaped portion at the distal end portion of the inner lip 50. In this way, in a cross-sectional view, the inner lip 50 extends from the base 51, which is a relatively thick part, to the middle part 52, which is a relatively thin part, and then to the tip, which is a relatively thick part, from the root side to the tip side. It has a portion 53 and is formed as a portion whose thickness changes smoothly from "thick" to "thin" to "thick".

With this configuration, the inner lip 50 can be bent at the inflection point where the thick portion changes to the thin portion, that is, the connecting portion 54 between the base portion 51 and the intermediate portion 52 as a bending starting point. As shown in FIGS. 2 and 3, when the door glass G is inserted between the inside side wall part 40 and the outside side wall part 60, the inner lip 50 is connected to the connecting part 54 by the contact action of the door glass G. From the connecting portion 54 to the tip portion 53 is in a state of being bent toward the vehicle inner side wall portion 40 using the bending point as the bending point. At this time, an elastic force is generated in the connecting portion 54 to return to its original state, and this elastic force acts as a force that causes the intermediate portion 52 and the tip portion 53 to come into contact with the door glass G.

In this way, the inner lip 50 is configured to come into elastic contact with the door glass G, and is further configured to be bent starting from the connecting portion 54, thereby achieving surface contact between the inner lip 50 and the door glass G. In the inner lip 50, high rigidity can be obtained at the base portion of the inner lip 50 due to the relatively thick base portion 51, and flexibility can be obtained from the relatively thin intermediate portion 52. Due to the flexibility, substantially the entire intermediate portion 52 can be used as a contact portion with the door glass G. Thereby, a surface contact effect of the inner lip 50 with the door glass G can be obtained.

Further, the inner lip 50 has a relatively thick tip portion 53 at its tip edge. According to such a configuration, the rigidity and strength of the tip edge of the inner lip 50 can be improved. Thereby, in the inner lip 50 that receives the sliding movement due to the raising and lowering movement of the door glass G, it is possible to suppress the distal end edge from being frayed, and it is possible to suppress the deterioration of the inner lip 50.

Further, the inner side wall portion 40 has hook pieces 41 and 42 protruding toward the front of the vehicle on the inner side in the vehicle width direction. The hook pieces 41 and 42 are tapered from a base 43 connected to the vehicle inner side wall 40 to a tip 44. That is, the hook pieces 41 and 42 have thick base portions 43 and 43 and thin tip portions 44 and 44, respectively, so that they are difficult to deform.

The hook pieces 41 and 42 are projecting portions that engage with the engagement recesses 14 and 15 of the vertical frame portion 11, respectively, and are spaced apart in the front and rear direction corresponding to each engagement recess 14 and 15. It is formed in two places. That is, the rear hook piece 41 is formed on the base 30 side (rear side), and the front hook piece 42 is formed on the front side of the rear hook piece 41 than the hook piece 41. It is also formed to form a high protrusion. The rear hook piece 41 is located within the rear engagement recess 14 and serves as a locking portion for the engagement recess 14, and the front hook piece 42 is positioned within the front engagement recess 15. This serves as a locking portion for the engagement recess 15.

The hook pieces 41 and 42 function as barbs by protruding diagonally from the inside side wall 40 toward the front of the vehicle while creating a fitted state between the door frame 10 and the glass run 20. However, the glass run 20 is configured to be difficult to come off from the door frame 10. In other words, the hook pieces 41 and 42 are the parts that come into contact with the front parts of the engagement recesses 14 and 15, respectively, and the parts of the glass run 20 in the direction in which the glass run 20 comes off from the door frame 10 with respect to the door frame 10. It functions as a locking part that restricts movement.

Further, in the glass run 20, a covering surface portion 45 is formed at the front edge portion of the vehicle inner side wall portion 40. The covering surface portion 45 is a plate-shaped portion having a curved shape with the front side convex toward the inside in the vehicle width direction from the front edge of the vehicle inner side wall portion 40 in a cross-sectional view. The covering surface portion 45 has an umbrella-like integral curved shape extending inwardly and outwardly in the vehicle width direction from the front edge of the vehicle inner side wall portion 40 together with the front inner lip 50 in a cross-sectional view. It forms part of the The covering surface portion 45 and the front inner lip 50 have their front surfaces continuous to form a curved surface 45a with the front side convex. 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 covers the gap between the structural member of the door frame 10 and the glass run 20, etc. on the vehicle width direction inner side of the vehicle inner side wall portion 40. This is the part that covers the front side.

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

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

The outer lip 70 is configured to have a thickness that changes from the base 71 to the tip 73. The outer lip 70 has a base portion 71 connected to the vehicle outer side wall portion 60 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 a base 71 that is a base portion relative to the vehicle outer side wall 60, and an intermediate portion 72 that is thinner than the base 71 and is an intermediate portion of the longitudinal guide portion 21 in an extended shape in a cross-sectional view. and a distal end portion 73 which forms the distal end 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 to bring the intermediate portion 72 of the outer lip 70 into surface contact with the door glass G.

In this way, similarly to the inner lip 50, the outer lip 70 extends from the base 71, which is a relatively thick part, to the middle part 72, which is a relatively thin part, from the root side to the tip side in a cross-sectional view. It has a tip 73 which is a relatively thick part, and is formed as a part whose thickness changes smoothly from "thick" to "thin" to "thick".

With this configuration, the outer lip 70 can be bent using the connecting portion 74 between the base portion 71 and the intermediate portion 72 as a bending point. As shown in FIGS. 2 and 3, when the door glass G is inserted between the inside side wall part 40 and the outside side wall part 60, the outer lip 70 is connected to the connecting part 74 by the contact action of the door glass G. to the tip 73 are in a state of being tilted toward the vehicle outer side wall portion 60 side. At this time, an elastic force is generated in the connecting portion 74 to return to the original bent state, and this elastic force acts as a force that causes the intermediate portion 72 and the tip portion 73 to abut against the door glass G. .

In this way, the outer lip 70 is configured to come into elastic contact with the door glass G, and is further configured to be bent starting from the connecting portion 74, thereby achieving surface contact between the outer lip 70 and the door glass G. In the outer lip 70, the base portion 71 having a relatively thick wall allows high rigidity to be obtained at the root portion of the outer lip 70, and the relatively thin middle portion 72 allows flexibility to be obtained. Due to the flexibility, substantially the entire intermediate portion 72 can be used as a contact portion with the door glass G. Thereby, a surface contact effect of the outer lip 70 with the door glass G can be obtained.

Further, the outer lip 70 has a relatively thick tip portion 73 at its tip edge. According to such a configuration, the rigidity and strength of the tip edge of the outer lip 70 can be improved. Thereby, in the outer lip 70 subjected to sliding movement due to the raising and lowering movement of the door glass G, it is possible to suppress the distal end edge from being frayed, and deterioration of the outer lip 70 can be suppressed.

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

The positioning protrusion 61 is a protruding portion formed at the intermediate portion of the vehicle outer side wall portion 60 in the front-rear direction, and serves as a locking portion for the distal end edge of the fitting portion 17 along the outer side of the vehicle outer side wall portion 60. On the outer side in the vehicle width direction of the outer side wall portion 60, the positioning protrusion 61 has a protrusion 61a formed at the rear of the outer side wall portion 60 so as to face the positioning protrusion 61 in the longitudinal direction, and the fitting portion 17 A fitting recess is formed.

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

The positioning protrusions 61 and 62 restrict movement of the glass run 20 in the front-rear direction (left-right direction in FIG. 3) by contacting the fitting portion 17 that constitutes the door frame 10 and the front edge of the door panel P. . That is, the forward movement of the glass run 20 is restricted by the front edge of the door panel P coming into contact with the positioning protrusion 61. Furthermore, the rearward movement of the glass run 20 is restricted by the contact between the tip of the door panel P and the positioning projection 62 and the contact between the fitting part 17 and the positioning projection 61.

Further, the glass run 20 has a water stopper piece 63 extending from the tip end edge of the vehicle outer side wall portion 60. The water stopper piece 63 is a plate-shaped portion extending from the front side of the vehicle outer side wall portion 60, and is bent obliquely inward in the vehicle width direction with respect to the main body portion of the vehicle outer side wall portion 60 along the approximately longitudinal direction. It is extending. The water stopper piece 63 is formed so as to taper from the main body side of the vehicle outer side wall portion 60 to the tip edge. That is, the water stopper piece 63 has a relatively thick base 64 and a relatively thin tip 65, so that the thickness gradually decreases from the base 64 side to the tip 65 side, and is tapered in cross-sectional view. It is formed into a shape. Due to this shape, the water stopper piece 63 has relatively high rigidity on the base 64 side and flexibility on the tip 65 side.

The water stopper piece 63 has its tip edge as a contact portion with the outer surface of the door glass G in the vehicle width direction. By having the water stopper piece 63 in this manner, the glass run 20 can reliably bring the front edge of the vehicle outer side wall portion 60 into contact with the surface of the door glass G, thereby preventing dust and water from outside the vehicle. Intrusion into the inside of the vehicle is reduced as much as possible.

In addition, on the inside of both ends of the base 30 in a cross-sectional view of the glass run 20, that is, the corner portion formed by the inside side wall portion 40 and the base portion 30, and the corner portion formed between the outside side wall portion 60 and the base portion 30, there is a flat surface. Recesses 31 and 32 are formed to have a substantially circular shape when viewed. The recesses 31 and 32 are groove-shaped portions extending in the direction in which the glass run 20 extends. Since the glass run 20 has the recesses 31 and 32, when the glass run 20 is fitted into the door frame 10, the car inner side wall part 40 and the car outer side wall part 60 can be easily bent inward with respect to the base part 30. It is configured so that it can be transformed into a form that can be inserted.

According to the glass run 20 of this embodiment having the above-described configuration, it is possible to improve the sound insulation between the door glass G and the glass run 20, and improve the quietness inside the vehicle relative to the sounds outside the vehicle. be able to.

As shown in FIG. 3, the edge of the door glass G is fitted into the door frame 10 in such a manner that the glass run 20, which is substantially U-shaped in cross-sectional plan view, sandwiches the edge of the door glass G. In this case, sounds from outside the vehicle go around between the door glass G and the glass run 20 from the outside of the door glass G, and reach the inside of the vehicle from the inside of the door glass G. That is, as shown by arrow A1 in FIG. It follows a route that passes between the inner surface of G and the inner side wall part 40 of the vehicle, and enters the interior of 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 vehicle outer side wall 60 can be brought into contact with each other. It is possible to make it difficult for sound to pass between the inner surface of the door glass G and between the inner surface of the door glass G and the vehicle inner side wall portion 40, thereby improving sound insulation. This makes it difficult for sound to pass through the contact area of the seal lip with the door glass G, and prevents sound from outside the vehicle from going around the edge of the door glass G held between the glass runs 20 and reaching the interior of the vehicle. This makes it possible to improve the quietness inside the vehicle.

Further, the glass run 20 of this embodiment has relatively thick tip portions 53 and 73 on the inner lip 50 and the outer lip 70, respectively. 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 a cross-sectional view, and to improve the rigidity of the tip edge of each seal lip. The portions 53 and 73 can act as a barrier in the path of sound intrusion from outside the vehicle. Thereby, the sound insulation properties of the seal lip can be improved, and the quietness inside the vehicle can be effectively improved.

Moreover, according to the glass run 20 of this embodiment, the surface contact of the inner lip 50 and the outer lip 70 with respect to the door glass G makes it possible to reliably hold the door glass G from inside and outside the vehicle.

Further, as shown in FIG. 3, the hook pieces 41 and 42 of the car-inside side wall part 40 of the glass run 20 are engaged with the fitting parts 14 and 15 of the inner piece 13 of the door frame 10, and the glass run 20 is attached to the car-board side. 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 reliably positioned and fitted to the door frame 10. can be done.

In the fitted state of the glass run 20, the door glass G is elastically pressed from the inside by the middle part 52, which is the thin part of the inner lips 50, 50, and by the middle part 72, which is the thin part of the outer lip 70, from the outside. It is elastically pressed 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 inner and outer sides are prevented from separating from the door glass G, and the door glass G is It is possible to create a state in which the door glass G and the glass run 20 are constantly in contact with each other by being held without rattling. As a result, it is possible to suppress the formation of a gap between the door glass G and the seal lip within the vertical guide portion 21, and it is possible to maintain or improve the quietness inside the vehicle, while also preventing dust from entering the vehicle from outside. and can prevent water from entering. In addition, the water stopper piece 63 on the vehicle outer side wall portion 60 of the glass run 20 comes into elastic 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 maintain contact with each other. Provides sound insulation. In addition, since the outer lip 70 has a relatively thin intermediate portion 72, it is easily deformed starting from the connecting portion 74, and while achieving surface contact with the door glass G, it is difficult to operate when the door glass G moves up and down. There is no risk of interference.

In addition, the inner lip 50 and the outer lip 70 maintain contact with the door glass G even when the air pressure difference between the inside and outside of the vehicle fluctuates due to speed changes when the vehicle is running, and the door glass G swings in and out of the vehicle. Therefore, rattling of the door glass G can be suppressed, and flapping 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 this embodiment, the inner lips 50, 50 can hold the door glass G from the inside, and since the outer lip 70 absorbs some displacement, the door glass G can be held by the inner lips 50, 50. The door glass G can be held securely without rattling.

Regarding the rattling of the door glass G, if the seal lip of the glass run that holds the door glass G does not have sufficient rigidity, for example, when the vehicle is driving on a rough road, the door rattles as the vehicle shakes. The glass G will shake, and a flapping sound will likely occur at the portion supported by the glass run. This flapping sound of the door glass G becomes a factor that reduces the quietness inside the vehicle.

Therefore, in the glass run 20 of this 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. Thereby, the shaking of the door glass G can be suppressed, and the flapping sound of the door glass G can be reduced. From this point of view as well, the glass run 20 according to the present embodiment can improve the quietness inside the vehicle.

Further, a coating agent containing silicon or the like may be applied to the inner circumferential surface of the glass run 20, that is, the contact portion of the glass run 20 with the door glass G in order to reduce the frictional resistance with the door glass G. By applying the coating agent to the inner circumferential 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.

Note that the glass run 20 may have a door glass support portion protruding from the base portion 30 toward the front of the vehicle. The door glass support portion has a generally rectangular shape in plan view and is in contact with the rear end portion G1 of the door glass G, so that it can suppress swinging in the front and rear direction that occurs in the door glass G when the vehicle is running.

The embodiment of the present invention described above is an example, and the present invention is not limited to the embodiment described above. Therefore, it goes without saying that even in forms other than the above-described embodiments, various changes can be made in accordance with the design, etc., as long as they do not deviate from the technical idea of the present invention.

In the embodiment described above, 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 embodiment described above, both the inner lip 50 and the outer lip 70 have base portions 51 and 71 that are relatively thick portions, intermediate portions 52 and 72 that are relatively thin portions, and relatively thick portions. It has tip portions 53, 73 which are parts of By adopting such a shape, it is possible to obtain the effects such as improving the quietness inside the vehicle and suppressing 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 Inner side wall portion 41, 42 Hook piece 43 Base portion 44 Tip portion 50, 50 Inner lip 51 Base portion 52 Intermediate portion 53 Tip portion 54 Connecting portion 60 Outer side wall portion 61, 62 Positioning protrusion 63 Water stopper piece 70 Outer lip 71 Base portion 72 Middle part 73 Tip part 74 Connecting part

Claims (2)

An automobile glass run having a vertical guide portion attached to the inner peripheral side of a door frame of an automobile door and guiding the raising and lowering of a door glass provided on the automobile door so as to be movable up and down,
The vertical guide portion is
a base fitted into the door frame;
an inboard side wall portion extending from the inboard side of the base;
an outer side wall extending from the outer side of the base and having a groove-shaped cross section together with the base and the inner side wall;
an inner lip extending obliquely from the vehicle inner side wall portion toward the door glass;
an outer lip extending obliquely from the vehicle outer side wall portion to the door glass side ;
At least one of the inner lip and the outer lip,
a base portion that is a root portion of the inner side wall portion or the outer side wall portion;
an intermediate portion forming an intermediate portion of the extended shape of the vertical guide portion in a cross-sectional view and formed thinner than the base portion;
The intermediate portion is configured to be in surface contact with the door glass ,
The vehicle outer side wall portion has a water stopper extending on the front side in the extending direction from the base portion, the tip edge of which is a contact portion with the vehicle outer surface of the door glass.
An automotive glass run characterized by: According to claim 1, at least one of the inner lip and the outer lip has a tip portion that forms a tip portion of the vertical guide portion in a cross-sectional view and is formed thicker than the intermediate portion. Automotive glass run as described.

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