Glass run

Abstract

Regarding glass runs that are assembled from the outside of the door frame, the present invention provides a glass run that efficiently dissipates the vibrational energy of the door glass. [Means for solving the problem] The glass run 10 comprises a trim portion 20 attached to the door frame 3 and a glass run portion 30 formed integrally with the trim portion 20. The glass run portion 30 comprises an outer side wall 31 connected to the trim portion 20, an inner side wall 32, an outer sealing lip 33 that abuts the outer and inner sides of the door glass 4, and an inner sealing lip 34. The trim portion 20 includes a hard trim portion 28 with high hardness, and the glass run portion 30 includes a partially hard glass run portion 40. At least when the door glass 4 is closed, the door glass 4 and the glass run portion hard portion 40, and the glass run portion hard portion 40 and the trim portion hard portion 28 are in contact.

Description

Technical Field

[0001] The present invention relates to a glass run disposed on a door frame of an automobile door, and more particularly to a glass run assembled from the outside of the vehicle of the door frame.

Background Art

[0002] Improving the quietness of vehicles such as automobiles enhances the comfort of passengers, so the appeal for improving product power is high. Also, in electric vehicles that are becoming more popular, since the conventionally installed engine is eliminated, the main remaining noises due to the elimination of the engine noise are the road noise and the wind noise become prominent. Therefore, the need for technologies to reduce them is increasing.

[0003] For example, there is known a technique for reducing vibration by using impedance matching that brings the impedance of a glass run closer to the impedance of glass by increasing the rigidity of the glass run (for example, Patent Document 1).

[0004] FIG. 9 shows the technique disclosed in Patent Document 1, which has a bottom wall 200, an outer vehicle side wall 300, and an inner vehicle side wall 400 as basic skeletons, and the basic skeletons are attached to a door frame groove portion 500 formed in a door frame 310, and is a glass run 100 that guides the raising and lowering of a door glass 600. On the inner vehicle side of the outer vehicle side wall 300, there is formed a thick portion 330 that protrudes inward of the vehicle and slidably contacts the door glass 600 and has a higher hardness than the outer vehicle side wall main body portion 320 of the outer vehicle side wall 300.

[0005] Then, by the contact between the thick portion 330 having a high hardness and the door glass 600, it is possible to efficiently propagate the vibration energy of the door glass 600 to the glass run 100 by using impedance matching and reduce the vibration.

[0006] Furthermore, by forming a structure in which the outer side wall 300, which has a high-hardness, thick portion 330, abuts against the door frame groove portion 500, and sandwiches the door glass 600 between the door glass 600 and the door frame groove portion 500, it is possible to increase the rigidity of the outer side wall 300, including the thick portion 330, with respect to the door glass 600 and the door frame groove portion 500, thereby reducing vibration. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2023-53894 [Overview of the project] [Problems that the invention aims to solve]

[0008] Incidentally, in addition to the type of glass run that is assembled into the door frame groove 500 as shown in Figure 9, there is also a so-called hidden type of glass run that, due to vehicle design requirements, covers and conceals a part of the door frame where the outer and inner panels are integrated at their leading edges from the outside of the vehicle.

[0009] The reduction of door glass vibration related to the glass run, which is installed from the outside of the door frame in this type of door frame, has not yet been sufficiently considered. [Means for solving the problem]

[0010] The present invention relates to a glass run that is assembled from the outside of the door frame, and provides a glass run that fully demonstrates the effect of vibration reduction by utilizing impedance matching with the door glass.

[0011] To solve the above problems, the first aspect of the present invention is a glass run that is assembled from the outside of the vehicle to a door frame extending to form a door glass opening of an automobile door, and seals the space between the door frame and the door glass, wherein the glass run comprises a trim portion attached to the outer flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the inner flange portion of the door frame, and sealing the space between the glass run portion and the door glass, wherein the glass run portion comprises an outer side wall connected to the trim portion, an inner side wall, an outer sealing lip that abuts the outer side of the door glass, and an inner sealing lip that abuts the inner side, wherein the trim portion comprises a trim portion hardened portion made of a material with high hardness, in whole or in part, and the glass run portion hardened portion made of a material with high hardness, wherein at least when the door glass is closed, the door glass and the glass run portion hardened portion, and the glass run portion hardened portion and the trim portion hardened portion are in contact.

[0012] In a first aspect of the present invention, the glass run comprises a trim portion attached to the exterior flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the interior flange portion of the door frame to seal the gap between the door glass and the trim portion. The glass run portion comprises an exterior side wall connected to the trim portion, an interior side wall, an exterior sealing lip that abuts the exterior side of the door glass, and an interior sealing lip that abuts the interior side. The trim portion comprises a trim portion hardened, which is made of a material with high hardness in whole or in part, and the glass run portion comprises a glass run portion hardened, which is made of a material with high hardness in part. At least when the door glass is closed, the door glass and the glass run portion hardened come into contact, so that vibrational energy from the door glass can be efficiently transmitted to the glass run portion hardened by utilizing impedance matching.

[0013] Furthermore, since the hardened portion of the glass run and the hardened portion of the trim are in contact, the vibrational energy of the door glass transmitted to the hardened portion of the glass run can be dissipated to the hardened portion of the trim. As a result, even in glass runs that are installed from the outside of the door frame, vibrations of the door glass can be reduced by using impedance matching, which brings the impedance of the glass run closer to the impedance of the glass.

[0014] Furthermore, if the hard portion of the trim is formed to abut against the outer flange portion of the door frame, the vibration energy of the door glass can be further dissipated from the hard portion of the trim to the door frame.

[0015] A second aspect of the present invention is that, in the first aspect, the trim portion hardened portion is a glass run that extends from the outer side wall or the inner side wall of the glass run portion.

[0016] In a glass run that is assembled from the outside of the vehicle to the door frame extending to form the door glass opening of a car door, the trim portion is assembled to the outer flange portion and the inner side wall portion is assembled to the inner flange portion. As a result, the inner side wall is formed to be larger than the outer side wall, and multiple inner seal lips are often formed. Furthermore, the outer side wall is very short, and the outer seal lip formed on the inner side and trim portion side at the tip of the outer side wall does not come into contact with the trim portion.

[0017] In a second aspect of the present invention, the hardened portion of the trim is formed extending from the outer side wall or the inner side wall of the glass run portion. When the hardened portion of the trim is formed extending from the outer side wall of the glass run portion, the hardened portion of the glass run portion can be formed on the outer seal lip, and the hardened portion of the glass run portion of the outer seal lip and the hardened portion of the trim formed extending from the outer side wall can be brought into contact. Therefore, the vibration energy of the door glass can be transmitted from the door glass to the hardened portion of the glass run portion and dissipated from the hardened portion of the glass run portion to the hardened portion of the trim.

[0018] On the other hand, if the hardened portion of the trim extends to the inner side wall of the glass run portion, the hardened portion of the glass run portion can be formed on one of the multiple inner seal lips, particularly one located away from the trim portion, allowing the hardened portion of the glass run portion of the inner seal lip to come into contact with the hardened portion of the trim portion formed on the inner side wall. Therefore, the vibrational energy of the door glass can be transmitted from the door glass to the hardened portion of the glass run portion and dissipated from the hardened portion of the glass run portion to the hardened portion of the trim portion. As a result, vibrations of the door glass can be reduced by using impedance matching, which brings the impedance of the glass run closer to the impedance of the glass.

[0019] A third aspect of the present invention is a glass run that is assembled from the outside of a vehicle to a door frame extending to form a door glass opening of an automobile door, and seals the space between the door frame and the door glass, wherein the glass run comprises a trim portion attached to the outer flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the inner flange portion of the door frame, and sealing the space between the door glass and the trim portion, wherein an insert member with a higher hardness than the trim portion is embedded in the trim portion, at least on the door glass side of the outer flange portion, and the glass run portion comprises an inner side wall connected to the trim portion, and an inner seal lip that abuts against the inner side of the door glass, wherein the tip portion of the inner seal lip is provided with an inner seal lip hard portion with a higher hardness than the inner seal lip excluding the tip portion, wherein at least when the door glass is closed, the door glass and the inner seal lip hard portion, and the inner seal lip hard portion and the trim portion are in contact.

[0020] In a third aspect of the present invention, an insert member with a higher hardness than the trim portion is embedded in the trim portion, at least on the door glass side of the outer flange portion of the vehicle, thereby increasing the rigidity of the trim portion on the door glass side.

[0021] The glass run part includes an inner side wall connected to the trim part and an inner side seal lip that abuts against the inner side of the door glass. The tip part of the inner side seal lip has an inner side seal lip hard part that is harder than the inner side seal lip excluding the tip part. When at least the door glass is closed, the door glass and the inner side seal lip hard part abut against each other. Therefore, by using impedance matching, the vibration energy of the door glass can be efficiently propagated to the inner side seal lip hard part.

[0022] And since the inner side seal lip hard part and the trim part abut against each other, the vibration energy of the door glass propagated to the inner side seal lip hard part can be dissipated to the trim part with increased rigidity. As a result, the vibration of the door glass can be reduced by using impedance matching to make the impedance of the glass run approach the impedance of the glass.

[0023] Here, the "rigidity of the trim part" is represented by the increase amount of the reaction force from the trim part with respect to the change amount of the pressing part when the trim part is pressed. Therefore, by embedding an insert member on the door glass side of the outer side flange part in the trim part, the slope (gradient) in the relationship between displacement and reaction force becomes larger.

[0024] A fourth aspect of the present invention is a glass run that is assembled from the outside of a vehicle to a door frame extending to form a door glass opening of an automobile door, and seals the space between the door frame and the door glass, wherein the glass run comprises a trim portion attached to the outer flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the inner flange portion of the door frame, and sealing the space between the glass run portion and the door glass, wherein the glass run portion comprises an outer side wall connected to the trim portion, and an outer seal lip extending from the outer side wall toward the door glass, wherein an insert member with a higher hardness than the trim portion is embedded in at least the door glass side of the outer flange portion of the trim portion and in the outer side wall, and the tip portion of the outer seal lip is provided with an outer seal lip hard portion with a higher hardness than the outer seal lip excluding the tip portion, wherein at least when the door glass is closed, the door glass and the outer seal lip hard portion, and the outer side wall of the area where the outer seal lip hard portion and the insert member are embedded are in contact.

[0025] In a fourth aspect of the present invention, the glass run comprises a trim portion attached to the exterior flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the interior flange portion of the door frame to seal the gap between the door glass and the trim portion. The glass run portion comprises an exterior side wall connected to the trim portion, and an exterior seal lip extending from the exterior side wall toward the door glass. An insert member with a higher hardness than the trim portion is embedded in at least the door glass side of the exterior flange portion of the trim portion and in the exterior side wall. The tip portion of the exterior seal lip is provided with an exterior seal lip hard portion with a higher hardness than the exterior seal lip excluding the tip portion. At least when the door glass is closed, the door glass and the exterior seal lip hard portion come into contact, so that vibration energy from the door glass can be efficiently transmitted to the lip hard portion by utilizing impedance matching.

[0026] And since the outer vehicle side seal lip rigid portion and the outer vehicle side wall in the region where the insert member is embedded are in contact, the vibration energy of the door glass propagated to the outer vehicle side seal lip rigid portion can be dissipated to the outer vehicle side wall with increased rigidity. As a result, the vibration of the door glass can be reduced by utilizing impedance matching that brings the impedance of the glass run closer to the impedance of the glass.

[0027] A fifth aspect of the present invention is a glass run that is assembled from the outside of the vehicle to a door frame extending so as to form a door glass opening of an automobile door and seals between the door frame and the door glass. The glass run includes a trim portion attached to the outer vehicle side flange portion of the door frame, and a glass run portion formed integrally with the trim portion, attached to the inner vehicle side flange portion of the door frame, and sealing between the glass run portion and the door glass. The glass run portion includes an inner vehicle side wall connected to the trim portion, and an inner vehicle side seal lip extending from the inner vehicle side wall toward the door glass side. At least on the door glass side of the outer vehicle side flange portion of the trim portion and on the inner vehicle side wall, an insert member having a higher hardness than the trim portion is embedded. At the tip of the inner vehicle side seal lip, an inner vehicle side seal lip rigid portion having a higher hardness than the inner vehicle side seal lip except for the tip portion is formed. At least when the door glass is closed, the door glass and the inner vehicle side seal lip rigid portion, and the inner vehicle side wall in the region where the inner vehicle side seal lip rigid portion and the insert member are embedded are in contact.

[0028] In a fifth aspect of the present invention, the glass run comprises a trim portion attached to the exterior flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the interior flange portion of the door frame to seal the gap between the glass run portion and the door glass. The glass run portion comprises an interior side wall connected to the trim portion, and an interior seal lip extending from the interior side wall toward the door glass. An insert member with a higher hardness than the trim portion is embedded in at least the door glass side of the exterior flange portion of the trim portion and in the interior side wall. A hard interior seal lip portion with a higher hardness than the interior seal lip excluding the tip portion is formed at the tip of the interior seal lip. At least when the door glass is closed, the door glass and the hard interior seal lip portion come into contact, so that vibration energy from the door glass can be efficiently transmitted to the hard interior seal lip portion by utilizing impedance matching.

[0029] Furthermore, since the rigid portion of the interior seal lip and the interior side wall of the area where the insert member is embedded are in contact, the vibration energy of the door glass transmitted to the rigid portion of the interior seal lip can be dissipated to the interior side wall, which has increased rigidity. As a result, vibrations of the door glass can be reduced by using impedance matching, which brings the impedance of the glass run closer to the impedance of the glass.

[0030] A sixth aspect of the present invention is that, in the fifth aspect, the insert member is a glass run in the trim portion, having a substantially U-shaped cross-section, and being formed and embedded continuously within the inner side wall from the door glass side of the outer flange portion of the vehicle.

[0031] In a sixth aspect of the present invention, the insert member has a substantially U-shaped cross-section in the trim portion and is formed and embedded continuously from the door glass side of the outer flange portion into the inner side wall of the vehicle. Therefore, the insert member can be manufactured as a single component by extending the substantially U-shaped tip portion into the inner side wall of the vehicle. As a result, the glass run can be extruded efficiently. [Effects of the Invention]

[0032] A glass run is assembled from the outside of the vehicle to a door frame that extends to form a door glass opening of an automobile door, and seals the space between the door frame and the door glass. The glass run comprises a trim portion attached to the outer flange portion of the door frame, and a glass run portion formed integrally with the trim portion and attached to the inner flange portion of the door frame, sealing the space between the glass run portion and the door glass. The glass run portion comprises an outer side wall connected to the trim portion, an inner side wall, an outer sealing lip that abuts the outer side of the door glass, and an inner sealing lip that abuts the inner side. The trim portion comprises a trim portion hardened, made entirely or partially of a highly hard material, and the glass run portion comprises a glass run portion hardened, made partially of a highly hard material. At least when the door glass is closed, the door glass and the glass run portion hardened contact, and by utilizing impedance matching, the vibration energy of the door glass can be efficiently transmitted to the glass run portion hardened through the contact between the door glass and the glass run portion hardened.

[0033] Furthermore, since the hardened portion of the glass run and the hardened portion of the trim are in contact, the vibrational energy of the door glass transmitted to the hardened portion of the glass run can be dissipated to the hardened portion of the trim. As a result, even in glass runs that are installed from the outside of the door frame, vibrations of the door glass can be reduced by using impedance matching, which brings the impedance of the glass run closer to the impedance of the glass. [Brief explanation of the drawing]

[0034] [Figure 1] This is a left side view of a car. [Figure 2] This is an embodiment of the present invention, a front view of a glass run used in the left front door. [Figure 3] This is a first embodiment of the present invention, and is a cross-sectional view AA in Figure 1. [Figure 4] This is a second embodiment of the present invention, shown as a cross-sectional view AA in Figure 1. [Figure 5] This is a third embodiment of the present invention, shown as a cross-sectional view AA in Figure 1. [Figure 6] This is a fourth embodiment of the present invention, shown as a cross-sectional view AA in Figure 1. [Figure 7] This is a fifth embodiment of the present invention, and is a cross-sectional view AA in Figure 1. [Figure 8] This is a sixth embodiment of the present invention, shown as a cross-sectional view AA in Figure 1. [Figure 9] This is a cross-sectional view showing a conventional glass run mounting structure (Patent Document 1). [Modes for carrying out the invention]

[0035] A first embodiment of the present invention will be described with reference to Figures 1 to 3. Figure 1 is a left side view of an automobile. The left front door 1 comprises a door body 2 that constitutes approximately the lower half of the left front door 1, and a door frame 3 (3a, 3b, 3c) that constitutes approximately the upper half. Inside the door body 2, a door glass 4 that moves up and down, and a lifting device (not shown) for moving the door glass 4 up and down can be housed. The present invention is applicable not only to the left front door 1, but also to the right front door and the left and right rear doors. Furthermore, Figures 1 and 2 are also used in the second to sixth embodiments described later.

[0036] (Door frame 3) The door frame 3 functions as a sash that holds the periphery of the door glass 4, and extends to form the door glass opening 7 that is created when the door glass 4 is opened, as shown in Figure 1. The door glass opening 7 formed by the door frame 3 is opened and closed by the door glass 4. The door frame 3 in this embodiment is constructed by combining an outer panel 5 made by press-forming a steel plate or the like, and an inner panel 6, as shown in Figure 3.

[0037] Figure 2 is a front view of the glass run 10 in an embodiment of the present invention. As shown in Figure 2, the glass run 10 comprises an upper edge portion 11, a front vertical edge portion 12, a rear vertical edge portion 13, a front projection portion 14, and a rear projection portion 15. The upper edge portion 11 extends in the front-rear direction along the upper frame portion 3a (Figure 1), which is the upper part of the door frame 3. The front vertical edge portion 12 extends downward from the front end of the upper edge portion 11 along the front frame portion 3b (Figure 1) of the door frame 3. The rear vertical edge portion 13 extends downward from the rear end of the upper edge portion 11 along the rear frame portion 3c (Figure 1) of the door frame 3. The lower parts of the front vertical edge portion 12 and the rear vertical edge portion 13 extend to reach the interior of the door body 2.

[0038] A front corner portion 16 is formed at the boundary between the front of the upper edge portion 11 and the front vertical edge portion 12. The front projection portion 14 protrudes forward from the front corner portion 16 and is inclined overall so that it is positioned lower as it approaches the front end. In addition, a rear corner portion 17 is formed at the boundary between the rear of the upper edge portion 11 and the rear vertical edge portion 13. The rear projection portion 15 protrudes rearward from the rear corner portion 17 along the upper edge portion 3a of the door frame 3. The rear end of the rear projection portion 15 extends until it reaches the rear end of the upper edge portion 3a of the frame.

[0039] Figure 3 is a cross-sectional view of section AA in Figure 1. As shown in Figure 3, the door frame 3 comprises an exterior flange portion 8 extending outward from the vehicle and an interior flange portion 9 protruding into the door glass opening 7 (Figure 1). Since the interior flange portion 9 protrudes into the door glass opening 7, it protrudes downward from the upper edge 3a of the frame in Figure 1.

[0040] On the inner side of the door glass opening 7 in the outer panel 5 that constitutes the door frame 3, an inner outer panel plate portion 5b is formed that extends toward the door glass opening 7. On the inner side of the door glass opening 7 in the inner panel 6, an inner inner panel plate portion 6b is formed that extends toward the door glass opening 7. Furthermore, on the outer side of the door glass opening 7 in the outer panel 5, an outer outer panel plate portion 5a is formed that extends toward the outside of the vehicle. On the outer side of the door glass opening 7 in the inner panel 6, an outer inner panel plate portion 6a is formed that extends toward the outside of the vehicle.

[0041] Then, the inner panel portion 5b of the outer panel 5 and the inner panel portion 6b of the inner panel 6 are joined together in an inward-outward direction to form the inner flange portion 9. In addition, the outer panel portion 5a of the outer panel 5 and the outer panel portion 6a of the inner panel 6 are joined together in an inward-outward direction to form the outer flange portion 8.

[0042] (Glass Run 10) As shown in Figure 3, the glass run 10 attached to the upper frame portion 3a of the door frame 3 comprises a trim portion 20 attached to the outer flange portion 8 of the door frame 3 and a glass run portion 30 attached to the inner flange portion 9 of the door frame 3.

[0043] The trim section 20 comprises a door glass side wall 21 located on the door glass 4 side, a body side wall 22 facing the periphery of the vehicle body opening, and a trim section bottom wall 23 connecting the door glass side wall 21 and the body side wall 22, and has a roughly U-shaped cross-section. The body-side wall 22 of the trim recess 24, which has a roughly U-shaped cross-section, is equipped with three recessed lips 25. The body-side wall 22 is provided with an upper sealing lip 26 that extends outward from the vehicle and toward the periphery of the vehicle body opening, and which contacts the periphery of the vehicle body opening when the left front door 1 is closed. Furthermore, the front end of the body-side wall 22 is provided with a trim portion retaining portion 27.

[0044] The door glass side wall 21, the body side wall 22, and the trim bottom wall 23 of the trim section 20 are made of a material with higher hardness than the material that constitutes the recessed lip 25, the upper seal lip 26, and the trim section holding section 27, and constitute the hard trim section 28.

[0045] As shown in Figure 3, when the outer flange portion 8 is inserted into the trim portion recess 24, the door glass side wall 21 abuts against the outer panel outer plate portion 5a of the outer flange portion 8, and the recess lip 25 abuts against the inner panel outer plate portion 6a of the inner panel 6, sandwiching the outer flange portion 8. In addition, the trim portion holding portion 27 abuts against the outer flange portion 8, sandwiching the outer flange portion 8 with the trim portion 20, and holding the glass run 10 to the door frame 3.

[0046] The glass run section 30 is located below the trim section 20 and comprises an outer side wall 31 and an inner side wall 32 that connect to the door glass side wall 21 of the trim section 20. The outer side wall 31 extends downward. On the other hand, the inner side wall 32 is formed to be larger than the outer side wall 31 and comprises a portion that extends downward and a portion that curves significantly inward from the downward-extending portion. Furthermore, the portion that curves significantly inward is formed to be thicker than the portion that extends downward.

[0047] The vehicle is equipped with an exterior sealing lip 33 that extends from the tip of the exterior side wall 31 toward the interior and toward the door glass side wall 21 of the trim portion 20. Furthermore, the interior side wall 32 is provided with an interior seal lip 34 that extends outward and toward the door glass side wall 21 of the trim portion 20. In this embodiment, the interior seal lip 34 is composed of three parts from the bottom: a first interior seal lip 34a, a second interior seal lip 34b, and a third interior seal lip 34c. The first interior seal lip 34a is formed in a displaced portion between a portion that extends downward and a portion that curves significantly inward.

[0048] The tip of the third interior seal lip 34c is equipped with a hard interior seal lip hard portion 41 (glass run hard portion 40) with high hardness.

[0049] A thin hinge portion 35 is provided at the connection point between the interior side wall 32 and the door glass side wall 21 of the trim portion 20, allowing the interior side wall 32 to rotate around the hinge portion 35 when the glass run portion 30 is installed.

[0050] A contact rib 36 is formed on the inner side of the inner side wall 32 of the vehicle. Furthermore, the interior side wall 32 is thinned at its tip by a stepped portion 37 and is equipped with an interior decorative lip 38 that curves in a key shape.

[0051] As shown in Figure 3, when the interior flange portion 9 is inserted between the stepped portion 37 and the interior decorative lip 38, the tip of the stepped portion 37 abuts against the inner plate portion 5b of the outer panel of the interior flange portion 9, and the interior decorative lip 38 abuts against the inner plate portion 6b of the inner panel, sandwiching the interior flange portion 9. The interior flange portion 9 is then held in place by the glass run portion 30, and the glass run 10 is held in place by the door frame 3. In addition, the contact rib 36 abuts against the outer panel 5.

[0052] In this embodiment, the trim rigid portion 28 and the interior seal lip rigid portion 41 (glass run rigid portion 40) are made of PP (polypropylene), while the trim portion 20 excluding the trim rigid portion 28 and the glass run portion 30 excluding the interior seal lip rigid portion 41 (glass run rigid portion 40) are made of olefin-based thermoplastic elastomer (TPO) with an IRHD (International Rubber Hardness) of 80±5 and manufactured by extrusion molding. The trim rigid portion 28 and the interior seal lip rigid portion 41 (glass run rigid portion 40) may also be made of the same TPO as the other parts; in this case, an IRHD of 100±5 is desirable. Furthermore, other rigid resin materials besides PP, such as olefin-based resins like polystyrene, may also be used.

[0053] When the glass run 10 is assembled to the door frame 3 from the outside of the vehicle and the door glass 4 is closed, the first interior seal lip 34a and the second interior seal lip 34b abut against the interior side of the door glass 4, and the hard interior seal lip portion 41 of the third interior seal lip 34c abuts against the leading edge of the door glass 4 and the hard trim portion 28 (door glass side wall 21) of the trim portion 20.

[0054] Next, a second embodiment of the present invention will be described with reference to Figure 4. Figure 4 is a cross-sectional view AA of Figure 1. The differences between this second embodiment and the first embodiment described above are that, in this second embodiment, firstly, the hardened portion 40 of the glass run is formed at the tip of the outer seal lip 33 and is the outer seal lip hardened portion 42; secondly, the hardened portion 28 of the trim is formed extending partway down the outer side wall 31; and thirdly, the inner seal lip hardened portion 41 is not formed.

[0055] Then, when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the hard part of the exterior seal lip 42 (hard part of the glass run 40) comes into contact with the hard part of the trim 28 that extends partway between the door glass 4 and the exterior side wall 31.

[0056] Next, a third embodiment of the present invention will be described with reference to Figure 5. Figure 5 is a cross-sectional view AA of Figure 1. The differences between this third embodiment and the first embodiment described above are that, in this third embodiment, firstly, the trim portion rigid portion 28 is formed to extend into the interior side wall 32; secondly, a part of the portion of the trim portion rigid portion 28 that extends into the interior side wall 32 is formed to protrude inward; thirdly, the interior seal lip rigid portion 41 (glass run portion rigid portion 40) is formed on the tip side of the second interior seal lip 34b rather than the first interior seal lip 34a; fourthly, the second interior seal lip 34b is formed to be large, its base portion is moved downward, extends outward and toward the trim portion 20, and then bends toward the interior side wall 32 near the interior seal lip rigid portion 41; and fifthly, the first interior seal lip 34a is formed to be small. Furthermore, the fifth difference stems from the fourth difference and is intended to prevent the second interior seal lip 34b and the first interior seal lip 34a from coming into contact with each other.

[0057] When the glass run 10 is assembled to the door frame 3, the inner side projection of the trim rigid portion 28, which extends into the inner side wall 32, contacts the outer panel 5. When the door glass 4 is closed, the inner seal lip rigid portion 41 (glass run rigid portion 40) contacts the door glass 4 near the bend of the second inner seal lip 34b, and its tip contacts the trim rigid portion 28 that extends into the inner side wall 32.

[0058] Next, a fourth embodiment of the present invention will be described with reference to Figure 6. Figure 6 is a cross-sectional view AA of Figure 1. The differences between this fourth embodiment and the first embodiment described above are, firstly, that the trim portion 20 does not have a trim portion hard portion 28, and secondly, that an insert member 50 with a substantially U-shaped cross-section is embedded in the trim portion 20. However, the fact that the vehicle-side seal lip hard portion 41 (glass run portion hard portion 40) is formed on the tip side of the third vehicle-side seal lip 34c remains the same. The insert member 50 was made of a metal material. However, the insert member 50 is not limited to a metal material as long as it is made of a material with a higher hardness than the trim portion 20. Furthermore, the insert member 50 only needs to be embedded in the door glass side wall 21 of the trim portion 20, and its cross-section is not limited to a substantially U-shape.

[0059] Then, when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the hard portion 41 of the interior seal lip 34c of the third interior seal lip abuts against the front end of the door glass 4 and the door glass side wall 21 of the trim portion 20.

[0060] Next, a fifth embodiment of the present invention will be described with reference to Figure 7. Figure 7 is a cross-sectional view of Figure 1, section AA. The differences between this fifth embodiment and the second embodiment described above are that, in this fifth embodiment, firstly, the trim portion 20 and the vehicle exterior side wall 31 are not provided with a trim portion hard portion 28; secondly, an insert member 50 with a substantially U-shaped cross-section is embedded in the trim portion 20; and thirdly, a second insert member 51 is embedded in the vehicle exterior side wall 31.

[0061] Then, when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the hard portion 42 of the exterior seal lip (hard portion 40 of the glass run) comes into contact with the exterior side wall 31 of the area where the door glass 4 and the second insert member 51 are embedded.

[0062] Next, a sixth embodiment of the present invention will be described with reference to Figure 8. Figure 8 is a cross-sectional view AA of Figure 1. The differences between this sixth embodiment and the third embodiment described above are that, in this sixth embodiment, firstly, the trim portion 20 and the interior side wall 32 are not provided with a trim portion rigid portion 28; secondly, an insert member 50 having a substantially U-shaped cross-section is embedded in the trim portion 20; and thirdly, the insert member 50 extends from the tip portion on the door glass side wall 21 side to the interior side wall 32 and is embedded therein.

[0063] Then, when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the hard portion 41 of the interior seal lip (hard portion 40 of the glass run) comes into contact with the door glass 4 near the bent portion of the second interior seal lip 34b, and its tip comes into contact with the interior side wall 32 of the area in which the insert member 50 is embedded.

[0064] As described in detail above, the embodiments of the present invention provide the following effects. (1) In the first embodiment described above, the glass run 10 comprises a trim portion 20 attached to the exterior flange portion 8 of the door frame 3, and a glass run portion 30 formed integrally with the trim portion 20 and attached to the interior flange portion 9 of the door frame 3 to seal the gap between it and the door glass 4. The glass run portion 30 comprises an exterior side wall 31 connected to the trim portion 20, an interior side wall 32, an exterior sealing lip 33 that abuts the exterior side of the door glass 4, and an interior sealing lip 34 that abuts the interior side. The trim portion 20 comprises a door glass side wall 21, a body side wall 22, and a trim portion bottom wall 23 connecting the door glass side wall 21 and the body side wall 22, with a trim portion hard portion 28 made of a high-hardness material. In the glass run section 30, the tip portion of the third interior seal lip 34c of the interior seal lip 34 is equipped with an interior seal lip hard section 41 (glass run section hard section 40) made of a high-hardness material. At least when the door glass 4 is closed, the door glass 4 and the glass run section hard section 40 come into contact. Therefore, even in a glass run 10 of the type that is assembled from the outside of the vehicle to the door frame 3 which extends to form the door glass opening 7 of the left front door 1 and seals the space between the door frame 3 and the door glass 4, the contact between the door glass 4 and the glass run section hard section 40 allows for efficient transmission of vibration energy from the door glass 4 to the glass run section hard section 40 by utilizing impedance matching.

[0065] (2) Furthermore, since the hard part 40 of the glass run and the hard part 28 of the trim are in contact, the vibration energy of the door glass 4 transmitted to the hard part 40 of the glass run can be dissipated to the hard part 28 of the trim. As a result, the vibration of the door glass 4 can be reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0066] (3) Furthermore, in the trim portion 20, the hard portion 28 of the trim portion and the outer flange portion 8 of the door frame 3 come into contact, so the vibration energy of the door glass 4 can be further dissipated from the hard portion 28 of the trim portion to the outer flange portion 8 of the door frame 3. As a result, the vibration of the door glass 4 can be further reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0067] (4) In the second embodiment described above, the hardened portion 40 of the glass run is the hardened portion 42 of the outer seal lip 33 formed at the tip of the outer seal lip, and the hardened portion 28 of the trim extends partway down the outer side wall 31. Therefore, when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the contact between the door glass 4 and the hardened portion 40 of the glass run allows the vibration energy of the door glass 4 to be efficiently transmitted to the hardened portion 40 of the glass run by utilizing impedance matching. Furthermore, since the hardened portion 40 of the glass run contacts the hardened portion 28 of the trim which extends into the outer side wall 31, the vibration energy of the door glass 4 transmitted to the hardened portion 40 of the glass run can be dissipated to the hardened portion 28 of the trim. As a result, the vibration of the door glass 4 can be reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0068] (5) Furthermore, the hard portion 42 of the exterior seal lip is not formed in a part that bends and deforms significantly when the exterior seal lip 33 comes into contact with the door glass 4, so it does not adversely affect the sliding contact with the door glass 4.

[0069] (6) In the third embodiment described above, the hard part of the interior seal lip 41 (hard part of the glass run 40) is formed on the tip side of the second interior seal lip 34b, the second interior seal lip 34b extends outward and toward the trim part 20, then bends toward the interior side wall 32 near the interior seal lip hard part 41, the hard part of the trim part 28 is formed extending partway toward the interior side wall 32, and a part of the portion of the interior side wall 32 of the hard part of the trim part 28 that extends into the interior side wall 32 is formed to protrude toward the interior, so when the glass run 10 is assembled to the door frame 3, the hard part of the trim part 28 and the exterior flange part 8 of the door frame 3 come into contact, and the portion of the interior side wall 32 of the hard part of the trim part 28 that extends into the interior side wall 32 comes into contact with the outer panel 5. When the door glass 4 is closed, the hard part of the interior seal lip 41 (hard part of the glass run 40) comes into contact with the door glass 4 near the bend of the second interior seal lip 34b, allowing the vibration energy of the door glass 4 to be efficiently transmitted to the hard part of the glass run 40 by utilizing impedance matching. Furthermore, since the tip of the hard part of the glass run 40 comes into contact with the hard part of the trim 28 which extends into the interior side wall 32, the vibration energy of the door glass 4 transmitted to the hard part of the glass run 40 can be dissipated to the hard part of the trim 28. As a result, the vibration of the door glass 4 can be reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0070] (7) Furthermore, in the trim portion 20, the hard portion 28 of the trim portion and the outer flange portion 8 of the door frame 3 come into contact, and the hard portion 28 of the trim portion and the outer panel 5 also come into contact, so that the vibration energy of the door glass 4 can be dissipated from the hard portion 28 of the trim portion by the door frame 3.

[0071] (8) In the fourth embodiment described above, an insert member 50 having a substantially U-shaped cross-section is embedded in the trim portion 20, and an interior seal lip rigid portion 41 (glass run rigid portion 40) is formed on the tip side of the third interior seal lip 34c. When the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the interior seal lip rigid portion 41 of the third interior seal lip 34c abuts against the door glass 4 and also abuts against the door glass side wall 21 of the trim portion 20. Therefore, by utilizing impedance matching, the vibration energy of the door glass 4 can be efficiently transmitted to the glass run rigid portion 40. Furthermore, the insert member 50 is embedded in the glass run rigid portion 40, and the vibration can be dissipated to the door glass side wall 21 of the trim portion 20, which has increased rigidity. As a result, vibration of the door glass 4 can be reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0072] (9) In the fifth embodiment described above, an insert member 50 having a substantially U-shaped cross-section is embedded in the trim portion 20, a second insert member 51 is embedded in the outer side wall 31, the hard portion 40 of the glass run is an outer seal lip hard portion 42 formed at the tip of the outer seal lip 33, and when the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the outer seal lip hard portion 42 (glass run hard portion 40) comes into contact with the door glass 4 and the outer side wall 31 in the area where the second insert member 51 is embedded. Therefore, by utilizing impedance matching, the vibration energy of the door glass 4 can be efficiently transmitted to the hard portion 40 of the glass run, and can also be dissipated to the outer side wall 31, which has increased rigidity due to the embedded insert member 50. As a result, vibration of the door glass 4 can be reduced by utilizing impedance matching, which brings the impedance of the glass run 10 closer to the impedance of the door glass 4.

[0073] (10) In the sixth embodiment described above, an insert member 50 having a substantially U-shaped cross-section is embedded in the trim portion 20, and the insert member 50 extends from the tip portion on the door glass side wall 21 side into the interior side wall 32 and is embedded therein. The glass run portion rigid portion 40 is the interior seal lip rigid portion 41 formed at the tip portion of the second interior seal lip 34b of the interior seal lip 34. When the glass run 10 is assembled to the door frame 3 and the door glass 4 is closed, the interior seal lip rigid portion 41 (glass run portion rigid portion 40) comes into contact with the interior side wall 32 in the area where the insert member 50, which extends from the door glass 4, is embedded. By utilizing impedance matching, the vibration energy of the door glass 4 can be efficiently transmitted to the glass run portion rigid portion 40 and dissipated into the interior side wall 32, which has increased rigidity due to the embedded insert member 50.

[0074] (11) Furthermore, since the insert member 50 extends from the tip portion on the door glass side wall 21 side into the interior side wall 32 and is embedded therein, the insert member 50 can be manufactured as a single member extending from a substantially U-shaped tip portion into the interior side wall 32. As a result, the glass run 10 can be extruded efficiently.

[0075] In carrying out the present invention, the invention is not limited to the embodiments described above, and various modifications are possible as long as they do not depart from the purpose of the invention.

[0076] For example, in the first to third embodiments described above, the trim portion 20 is formed by a trim portion hardened portion 28 made of a highly hard material over almost the entire area of ​​the door glass side wall 21, the body side wall 22, and the trim portion bottom wall 23 connecting the door glass side wall 21 and the body side wall 22. However, it is sufficient to form the trim portion hardened portion 28 on at least the area of ​​the door glass side wall 21 that abuts against the glass run portion hardened portion 40. In this case, it is more preferable to provide a through-region on the door glass side wall 21 that abuts against the glass run portion hardened portion 40 and the vehicle exterior flange portion 8.

[0077] For example, in the fifth embodiment described above, the second insert member 51 was embedded separately from the insert member 50 in the outer side wall 31 of the vehicle. However, as long as it can be connected to the insert member 50 embedded in the trim portion 20, it may be embedded as a single component, similar to the sixth embodiment. [Explanation of symbols]

[0078] 3 Door Frame 4 Door Glass 8. Outer flange of the vehicle 9. Inner flange 10 Glass Run 20 Trim section 28 Trim section, hard section 30 Glass run section 40 Glass run section, hard section 41. Hard part of the exterior seal lip 42. Hard part of the interior seal lip 50 Insert members 51 Second insert member

Claims

1. A glass run, which is assembled from the outside of the vehicle to a door frame that extends to form a door glass opening of an automobile door, and which seals the space between the door frame and the door glass, The glass run includes a trim portion attached to the outer flange portion of the door frame, It comprises a glass run portion formed integrally with the trim portion, attached to the interior flange portion of the door frame, and sealing the gap between it and the door glass, The glass run portion comprises an outer side wall connected to the trim portion and an inner side wall, The door glass comprises an exterior sealing lip that abuts against the exterior side of the door glass and an interior sealing lip that abuts against the interior side of the door glass, The trim portion includes a hardened trim portion made of a material with high hardness, either entirely or partially. The glass run portion includes a hardened portion of the glass run portion made of a material with high hardness in part. A glass run characterized in that, at least when the door glass is closed, the door glass and the hardened portion of the glass run, and the hardened portion of the glass run and the hardened portion of the trim are in contact.

2. The glass run according to claim 1, wherein the hardened portion of the trim portion extends to the outer side wall or the inner side wall of the glass run portion.

3. A glass run, which is assembled from the outside of the vehicle to a door frame that extends to form a door glass opening of an automobile door, and which seals the space between the door frame and the door glass, The glass run includes a trim portion attached to the outer flange portion of the door frame, It comprises a glass run portion formed integrally with the trim portion, attached to the interior flange portion of the door frame, and sealing the gap between it and the door glass, In the trim portion, at least on the door glass side of the outer flange portion of the vehicle, an insert member with a higher hardness than the trim portion is embedded. The glass run portion comprises an interior side wall connected to the trim portion, The door glass is equipped with an interior sealing lip that contacts the interior side of the vehicle, The tip portion of the aforementioned interior seal lip is provided with an interior seal lip hardened portion which has a higher hardness than the interior seal lip excluding the tip portion. A glass run characterized in that, at least when the door glass is closed, the door glass and the hardened portion of the interior sealing lip, and the hardened portion of the interior sealing lip and the trim portion come into contact.

4. A glass run, which is assembled from the outside of the vehicle to a door frame that extends to form a door glass opening of an automobile door, and which seals the space between the door frame and the door glass, The glass run includes a trim portion attached to the outer flange portion of the door frame, It comprises a glass run portion formed integrally with the trim portion, attached to the interior flange portion of the door frame, and sealing the gap between it and the door glass, The glass run portion comprises an outer side wall connected to the trim portion and an outer sealing lip extending from the outer side wall toward the door glass. An insert member with a higher hardness than the trim portion is embedded in at least the door glass side of the exterior flange portion of the trim portion and in the exterior side wall of the trim portion. The tip portion of the aforementioned exterior seal lip is provided with an exterior seal lip hardened portion which has a higher hardness than the exterior seal lip excluding the tip portion. A glass run characterized in that, at least when the door glass is closed, the door glass and the hardened portion of the exterior sealing lip, and the hardened portion of the exterior sealing lip and the exterior side wall of the area in which the insert member is embedded come into contact.

5. A glass run, which is assembled from the outside of the vehicle to a door frame that extends to form a door glass opening of an automobile door, and which seals the space between the door frame and the door glass, The glass run includes a trim portion attached to the outer flange portion of the door frame, It comprises a glass run portion formed integrally with the trim portion, attached to the interior flange portion of the door frame, and sealing the gap between it and the door glass, The glass run portion comprises an interior side wall connected to the trim portion, and an interior sealing lip extending from the interior side wall toward the door glass. An insert member with a higher hardness than the trim portion is embedded in at least the door glass side of the outer flange portion of the trim portion and in the inner side wall of the trim portion. The tip portion of the aforementioned interior seal lip has a hardened portion that is harder than the interior seal lip excluding the tip portion. A glass run characterized in that, at least when the door glass is closed, the door glass and the hard portion of the interior sealing lip, and the hard portion of the interior sealing lip and the interior side wall of the area in which the insert member is embedded come into contact.

6. The glass run according to claim 5, wherein the insert member has a substantially U-shaped cross-section in the trim portion, is formed continuously within the inner side wall of the vehicle from the door glass side of the outer flange portion of the vehicle, and is embedded.

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