Glass run for automotive door

Abstract

The present invention relates to a glass run for an automotive door. The glass run (20) includes: a core member (23), a base member (24) provided on the outside of the vehicle body outer side wall portion (21c) and made of a material having a high flexural modulus, and a decorative member (25) fixed to the outside of the vehicle body of the base member (24). When the decorative member is installed on the outside of the vehicle body of the glass run, indentation is suppressed without deteriorating the workability of installation onto the window frame.

Description

Technical Field

[0001] The present invention relates to a glass run for an automobile door, and the automobile door is provided with a door on which the glass run for the automobile door is installed. Background Art

[0002] There is a door provided on the side of an automobile: the door has a window frame that holds the peripheral portion of a window glass. On such a door having a window frame, a glass run is provided for sealing the gap between the window frame and the window glass.

[0003] In Figure 3 the glass run disclosed in Patent Document 1 is installed on the window frame from the outside of the vehicle body. For example, due to the need for vehicle exterior design, sometimes a glass run installed on the window frame from the outside of the vehicle body as disclosed in Patent Document 1 is adopted.

[0004] The decorative portion of the glass run of Patent Document 1 is made of a hard resin, and the decorative portion is composed of a bottom wall located on the outside of the vehicle body and extending in the vertical direction, a glass run side side wall extending from the lower end portion of the bottom wall toward the inside of the vehicle compartment, and a vehicle body side side wall extending from the upper end portion of the bottom wall toward the inside of the vehicle compartment. A strip-shaped decorative member that is long in the front-rear direction is installed on the outer surface of the vehicle body of the bottom wall. The decorative member is composed of a synthetic resin laminated film, a stainless steel thin film, a film having a decorative pattern formed on the surface, and the like.

[0005] Patent Document 1: Japanese Patent Laid-Open Publication No. 2014-196051 Summary of the Invention

[0006] -Technical Problems to be Solved by the Invention-

[0007] The decorative portion disclosed in Patent Document 1 is generally formed by extrusion molding, and thus a linear member formed by extrusion molding is cut into a desired length and used as a part of the glass run. On the other hand, since the window frame is usually bent in accordance with the shape of the vehicle body roof, it is necessary to bend the linear decorative portion corresponding to the bent shape of the window frame and install the decorative portion on the window frame.

[0008] At this time, considering that: since the entire decorative portion of Patent Document 1 is made of a hard resin and is a highly rigid member integrated with the bottom wall, the glass run side side wall, and the vehicle body side side wall, it is difficult to bend when installed on the window frame, and the installation workability is poor.

[0009] Therefore, it can be considered that by embedding a core member inside the decorative portion and making the portion other than the core member of a material having a low bending elastic modulus, the decorative portion can be easily bent when installed on the window frame.

[0010] However, it has become clear that if the installation of the strip-shaped decorative member is considered as in Patent Document 1, the following problems may occur. That is, if a structure in which the core member is buried inside the decorative portion is adopted, the portion of the decorative portion on the vehicle exterior side is made of a material having a much lower rigidity than the core member, and the decorative member is installed on this low-rigidity portion. As a result, since the low-rigidity material is located on the back side of the decorative member, for example, when an object or the like hits the decorative member, the decorative portion cannot suppress the deformation of the decorative member, the amount of deformation of the decorative member increases, and marks (hereinafter referred to as indentations) generated by the deformation are likely to remain on the decorative member. The decorative member is an external component of the vehicle and is easily noticeable, so there is a problem that if indentations remain, it is likely to cause a poor appearance.

[0011] The present invention has been completed to solve the above technical problems, and an object thereof is to suppress the generation of indentations on the decorative member without deteriorating the workability of installing the decorative member on the window frame when the decorative member is installed on the vehicle exterior side of the glass run.

[0012] - Technical solution for solving technical problems -

[0013] In order to achieve the above object, in the present invention, a base member having a high flexural modulus of elasticity is provided on the vehicle exterior side of the decorative portion, and the decorative member is fixed to the base member.

[0014] The invention of the first aspect relates to a glass run for an automobile door, which is installed on a glass run mounting plate portion from the vehicle exterior side, the glass run mounting plate portion being formed at the upper edge portion of the window frame and extending toward the vehicle exterior side, the window frame extending so as to form a window opening in the automobile door, and the glass run for the automobile door sealing a gap between the window frame and the window glass, characterized in that the glass run for the automobile door includes: a decorative portion having an upper wall portion, a lower wall portion, and a vehicle exterior side wall portion, and made of an elastic body, the upper wall portion extending along the upper surface of the glass run mounting plate portion, the lower wall portion extending along the lower surface of the glass run mounting plate portion, the vehicle exterior side wall portion extending downward from the vehicle exterior side of the upper wall portion and connected to the vehicle exterior side of the lower wall portion; a core member buried in the decorative portion; a base member provided on the vehicle exterior side of the vehicle exterior side wall portion and made of a material having a higher flexural modulus of elasticity than the material forming the decorative portion; and a decorative member fixed to the vehicle exterior side of the base member.

[0015] According to this configuration, since the decorative part is made of an elastic body and a core member is embedded in the decorative part, the bending rigidity of the entire decorative part will not be too high and the bending rigidity can be appropriately ensured. In this way, when the glass run is installed on the upper edge part of the window frame, the glass run can easily bend along the shape of the window frame, thus avoiding the deterioration of the installation workability.

[0016] Since the decorative member is fixed to the base member made of a material having a high bending elastic modulus, for example, when an object or the like hits the decorative member, the base member on the back side of the decorative member is not easily deformed, so that the deformation of the decorative member can be suppressed. Therefore, the amount of deformation of the decorative member becomes smaller and it is difficult to form indentations.

[0017] The invention of the second aspect is characterized in that: the bending elastic modulus of the material of the base member is 850 MPa or more.

[0018] That is to say, if the bending elastic modulus of the material of the base member is less than 850 MPa, indentations are likely to be generated when the glass run before being installed on the window frame is processed, or when the glass run is normally used after being installed on the window frame. However, by making the bending elastic modulus 850 MPa or more, almost no indentations will be formed in the above cases except for the behavior of deliberately leaving marks. Even if indentations are formed, they are extremely small indentations that are difficult to distinguish with the naked eye.

[0019] From the viewpoint of suppressing the generation of indentations, the bending elastic modulus of the material of the base member is preferably 900 MPa or more, more preferably 950 MPa or more. The bending elastic modulus of the material of the base member is preferably set to 4500 MPa or less. The reason is that if the bending elastic modulus of the material of the base member exceeds 4500 MPa, the decorative part is difficult to bend when the base member is installed on the window frame.

[0020] The invention of the third aspect is characterized in that: the base member continuously extends in the vehicle front-rear direction and is continuously provided from the upper end part to the lower end part of the vehicle outer side wall part.

[0021] According to this configuration, since the base member is provided to cover most of the vehicle outer side wall part, when the decorative member is provided from the front end part to the rear end part of the vehicle outer side wall part, the generation of indentations of the decorative member can be suppressed in a large range.

[0022] The invention of the fourth aspect is characterized in that: the thickness of the base member is set to 2 mm or less.

[0023] That is to say, if the thickness of the base member exceeds 2 mm, the bending rigidity of the decorative portion becomes too high, and when the decorative portion is attached to the upper edge portion of the window frame, it may be difficult to bend the decorative portion along the shape of the window frame. However, by setting the thickness of the base member to 2 mm or less, it is possible to prevent the bending rigidity of the decorative portion from becoming too high due to the base member, thereby avoiding deterioration of the workability of attaching the decorative portion to the upper edge portion of the window frame.

[0024] The invention according to the fifth aspect is characterized in that: the decorative member is provided on the base member in such a manner as to be continuously fixed from the upper end portion to the lower end portion of the base member.

[0025] That is to say, if the linear decorative portion to which the decorative member is fixed is bent along the shape of the window frame, the length of the portion located on the inner side of the bend becomes shorter than the portion located on the outer side of the bend. As a result, wrinkles may be generated in the portion of the decorative member located on the inner side of the bend. In this configuration, since the decorative member is provided on the base member in such a manner as to be continuously fixed from the upper end portion to the lower end portion of the base member having a high bending rigidity, it is difficult for wrinkles to be generated in the decorative member.

[0026] The invention according to the sixth aspect is characterized in that: the upper end portion and the lower end portion of the base member are bent toward the vehicle interior side.

[0027] According to this configuration, since the upper end portion and the lower end portion of the base member are buried in the vehicle exterior side wall portion of the decorative portion, it is difficult for the upper end portion and the lower end portion of the decorative member fixed to the base member to peel off.

[0028] - Effects of the Invention -

[0029] According to the invention of the first aspect, the core member is buried in the decorative portion made of an elastic body, the base member having a high bending elastic modulus is provided on the vehicle exterior side wall portion of the decorative portion, and the decorative member is fixed to the base member. Therefore, it is possible to suppress the generation of indentations without deteriorating the workability of attaching the decorative portion to the window frame.

[0030] According to the invention of the second aspect, by setting the bending elastic modulus of the material of the base member to 850 MPa or more, it is possible to suppress the generation of indentations under normal conditions.

[0031] According to the invention of the third aspect, since the base member continuously extends in the vehicle front-rear direction and is continuously provided from the upper end portion to the lower end portion of the vehicle exterior side wall portion, it is possible to suppress the generation of indentations in a wide range in the decorative member.

[0032] According to the invention of the fourth aspect, by setting the thickness of the base member to 2 mm or less, it is possible to suppress the generation of indentations in the decorative member, and it is possible to prevent the bending rigidity of the decorative portion from becoming too high, ensuring good workability of attaching the decorative portion to the upper edge portion of the window frame.

[0033] According to the invention of the fifth aspect, since the decorative member is provided on the base member in such a manner as to be continuously fixed from the upper end portion to the lower end portion of the base member, when the linear decorative portion to which the decorative member is fixed is bent along the shape of the window frame, it is difficult for wrinkles to occur on the decorative member, so that the appearance beauty of the vehicle can be made good.

[0034] According to the invention of the sixth aspect, since the upper end portion and the lower end portion of the base member are bent toward the vehicle interior side, peeling of the decorative member can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 FIG. is a view of a vehicle door including a glass run for a vehicle door according to an embodiment as viewed from the outside of the vehicle.

[0036] Figure 2 is along Figure 1 Cross-sectional view taken along line II-II in

[0037] Figure 3 Cross-sectional view of a glass run for a vehicle door before being mounted on a window frame.

[0038] REFERENCE SIGNS

[0039] 1 - Vehicle door; 3 - Window frame; 3c - Upper frame portion; 7 - Window opening; 10 - Glass run mounting plate portion; 21 - Glass run main body (decorative portion); 21a - Upper wall portion; 21b - Lower wall portion; 21c - Outer vehicle side wall portion; 23 - Core member; 24 - Base member; 25 - Decorative member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiments is illustrative only in nature and is not intended to limit the present invention, its application, or its use.

[0041] (Structure of the vehicle door)

[0042] Figure 1 FIG. is a side view of a vehicle door 1 including a glass run 20 for a vehicle door according to an embodiment of the present invention as viewed from the outside of the vehicle. The vehicle door 1 is a front door provided on the front side of the side portion of a vehicle (not shown), and the vehicle door 1 opens and closes an opening portion (not shown) formed on the front side of the side portion of the vehicle. When a rear door is provided on the side portion of the vehicle, the present invention can also be applied to a glass run provided at the rear door, but is not shown.

[0043] It should be noted that in the description of this embodiment, the front side of the vehicle is simply referred to as "front", and the rear side of the vehicle is simply referred to as "rear".

[0044] The vehicle door 1 has a door body 2 that constitutes a substantially lower half of the vehicle door 1 and a window frame 3 that constitutes a substantially upper half. The front end of the door body 2 is mounted on a pillar of the vehicle body via a hinge having a rotating shaft extending in the vertical direction, which is not shown. The door body 2 is composed of an inner panel (not shown) and an outer panel 2a, and the inner panel and the outer panel 2a are made of steel plates or the like. Inside the door body 2, a window glass 4 that performs a lifting and lowering operation and a lifting device (not shown) for causing the window glass 4 to perform a lifting and lowering operation can be accommodated, etc.

[0045] The window frame 3 functions as a frame that holds the peripheral portion of the window glass 4 and extends to form a window opening 7. The window opening 7 formed by the window frame 3 is opened and closed by the window glass 4. As Figure 2 shown, the window frame 3 in this embodiment is constituted by combining a first panel member 5 and a second panel member 6 formed by stamping a steel plate or the like.

[0046] As Figure 1 shown, the window frame 3 is composed of a front side frame portion 3a, a rear side frame portion 3b, and a frame upper edge portion 3c. The front side frame portion 3a protrudes upward from the front part of the upper edge of the door body 2. The rear side frame portion 3b extends upward from the rear part of the upper edge of the door body 2. The rear side frame portion 3b extends to a position higher than the front side frame portion 3a. The frame upper edge portion 3c extends in the front-rear direction from the upper end of the front side frame portion 3a to the upper end of the rear side frame portion 3b along the roof side edge portion (not shown) of the vehicle body. It should be noted that the frame upper edge portion 3c is usually curved, but the shape of the frame upper edge portion 3c is not limited to the shape shown, and it can also be a shape that is curved upward as a whole. Moreover, the position of the curved portion and the inclination angle of the frame upper edge portion 3c can be arbitrarily set according to the roof shape of the vehicle body.

[0047] A door mirror mounting portion 3d for mounting a door mirror (not shown) is provided in front of the front side frame portion 3a of the window frame 3. The upper edge portion of the door mirror mounting portion 3d is connected to the front end portion of the frame upper edge portion 3c of the window frame 3. The door mirror mounting portion 3d is not essential.

[0048] As Figure 2As shown, a glass run channel mounting plate portion 10 extending toward the outside of the vehicle body is formed on the window frame 3. The first panel member 5 and the second panel member 6 constituting the window frame 3 are members that can also be referred to as an inner plate and an outer plate, respectively, and are configured to partition a hollow portion R inside the window frame 3. An outer plate portion 5c extending toward the outside of the vehicle body is formed on a portion of the first panel member 5 located outside the window opening 7. An outer plate portion 6c extending toward the outside of the vehicle body is formed on a portion of the second panel member 6 located outside the window opening 7. And, by overlapping and joining the outer plate portion 5c of the first panel member 5 and the outer plate portion 6c of the second panel member 6 in the vertical direction, a glass run channel mounting plate portion 10 continuously extending in the front-rear direction is thereby constituted.

[0049] (Structure of the glass run channel)

[0050] The glass run channel 20 is assembled to the window frame 3 from the outside of the vehicle body and functions as a seal for sealing the gap between the window frame 3 and the window glass 4.

[0051] The glass run channel 20 is composed of a combination of an extrusion molding portion obtained by extrusion molding and a die molding portion obtained by die molding. As Figure 1 shown, at the boundary portion between the upper edge portion 230 of the glass run channel and the front side glass run channel longitudinal edge portion 210 of the glass run channel 20, the portion sandwiched by the boundary lines L1, L2 (shown by dashed-dotted lines) is the die molding portion. Further, at the boundary portion between the upper edge portion 230 of the glass run channel and the rear side glass run channel longitudinal edge portion 220 of the glass run channel 20, the portion sandwiched by the boundary lines L3, L4 (shown by dashed-dotted lines) is the die molding portion. The portion other than the above-mentioned portions is the extrusion molding portion.

[0052] The upper edge portion 230 of the glass run channel includes: a glass run channel main body (decoration portion) 21 assembled on the glass run channel mounting plate portion 10 of the window frame 3, a core member 23, a base member 24, and a decorative member 25. The glass run channel main body 21 has: an upper wall portion 21a extending along the upper surface of the glass run channel mounting plate portion 10, a lower wall portion 21b extending along the lower surface of the glass run channel mounting plate portion 10, and an outer vehicle body side wall portion 21c extending downward from the outer vehicle body side of the upper wall portion 21a and connected to the outer vehicle body side of the lower wall portion 21b. The outer vehicle body side wall portion 21c is formed to protrude downward from the lower wall portion 21b, and the lower end portion of the outer vehicle body side wall portion 21c is in a positional relationship facing the outer surface of the vehicle body of the window glass 4.

[0053] The glass run channel main body 21 is made of a rubber-like elastic material such as an elastomer and is prone to elastic deformation. The glass run channel main body 21 is the part that does not include the core member 23 described later. Examples of the material for the glass run channel main body 21 include rubbers such as EPDM (ethylene propylene diene monomer rubber), and TPEs (thermoplastic elastomers) such as TPO (olefin) and TPS (styrene). The above-mentioned rubber or TPE can be a sponge material or a solid material.

[0054] An upper sealing lip 25 is integrally formed on the upper surface of the upper wall portion 21a. The upper sealing lip 25 protrudes upward from the upper surface of the upper wall portion 21a and is a part that elastically deforms when contacting a vehicle body panel (not shown) when the vehicle door 1 is in the closed state, so as to seal the gap between the vehicle door 1 and the vehicle body panel. A plurality of protrusions 26 protruding downward are formed on the lower surface of the upper wall portion 21a. These protrusions 26 elastically deform when contacting the upper surface of the glass run channel mounting plate portion 10.

[0055] A lower sealing lip 27 is integrally formed on the lower surface of the lower wall portion 21b. The lower sealing lip 27 contacts the upper end portion of the window glass 4 in the closed state. An inner vehicle sealing lip 28 is integrally formed at the end portion of the lower wall portion 21b on the inner vehicle side. The inner vehicle sealing lip 28 elastically deforms when contacting the inner vehicle surface of the window glass 4 in the closed state.

[0056] An outer vehicle sealing lip 29 is integrally formed at the lower end portion of the outer vehicle side wall portion 21c. The outer vehicle sealing lip 29 elastically deforms when contacting the outer vehicle surface of the window glass 4 in the closed state.

[0057] (Structure of the core member 23)

[0058] The core member 23 is embedded in the glass run channel main body 21. Examples of the material for the core member 23 include hard resins (such as resins mixed with talc and glass fibers), aluminum alloys, steel materials, stainless steels, etc., and it is a high-rigidity material harder than the material of the glass run channel main body 21. The core member 23 has an upper plate portion 23a embedded in the upper wall portion 21a of the glass run channel main body 21, a lower plate portion 23b embedded in the lower wall portion 21b, and a side plate portion 23c embedded in the outer vehicle side wall portion 21c, and the upper plate portion 23a, the lower plate portion 23b, and the side plate portion 23c are formed integrally.

[0059] The upper edge portion 230 of the glass run 20 is an extrusion-molded portion, and thus its formed shape is linear. On the other hand, since the upper edge portion 3c of the window frame 3 is bent as described above, when the upper edge portion 230 of the glass run is mounted on the upper edge portion 3c of the window frame 3, it is necessary to bend the upper edge portion 230 of the glass run to ensure that the shape of the upper edge portion 230 of the glass run corresponds to the shape of the upper edge portion 3c of the window frame. At this time, since not the entire glass run main body 21 is a rigid member, but only the core member 23 is a rigid member, the rigidity of the upper edge portion 230 of the glass run will not be increased above the necessary rigidity, and the upper edge portion 230 of the glass run can have appropriate rigidity. In this way, the force required to bend the upper edge portion 230 of the glass run is small.

[0060] (Structure of the base member 24)

[0061] The base member 24 is provided on the vehicle exterior side of the vehicle exterior side wall portion 21c of the glass run main body 21. It continuously extends from the front end portion to the rear end portion of the vehicle exterior side wall portion 21c in the front-rear direction, and is continuously provided from the upper end portion to the lower end portion of the vehicle exterior side wall portion 21c.

[0062] The flexural modulus of elasticity of the material of the base member 24 is set to be higher than the flexural modulus of elasticity of the material forming the glass run main body 21. Specifically, the flexural modulus of elasticity of the material of the base member 24 is 850 MPa or more. It should be noted that the flexural modulus of elasticity described in this article is the value obtained according to ISO178. As the material capable of obtaining the above flexural modulus of elasticity, for example, a material obtained by mixing talc or glass fiber into polypropylene can be cited. By changing the amount of talc or glass fiber mixed in, the desired flexural modulus of elasticity can be obtained. The material of the base member 24 is not limited to the above materials, and may be a material other than the above materials as long as the desired flexural modulus of elasticity can be obtained. By setting the flexural modulus of elasticity of the material of the base member 24 at 850 MPa or more, indentations are less likely to occur on the decorative member 25 as described below.

[0063] The flexural modulus of elasticity of the material of the base member 24 is preferably 900 MPa or more, and more preferably 950 MPa or more. By increasing the flexural modulus of elasticity of the material of the base member 24, indentations are even less likely to occur on the decorative member 25.

[0064] The flexural modulus of elasticity of the material of the base member 24 is preferably 4500 MPa or less. That is to say, if the flexural modulus of elasticity of the material of the base member 24 exceeds 4500 MPa, the flexural rigidity of the glass run channel main body 21 becomes too high, and when the upper edge portion 230 of the glass run channel is to be installed on the upper edge portion 3c of the window frame 3, the upper edge portion 230 of the glass run channel sometimes becomes difficult to bend along the shape of the upper edge portion 3c of the frame. However, by setting the flexural modulus of elasticity of the material of the base member 24 to 4500 MPa or less, it is possible to prevent the flexural rigidity of the glass run channel main body 21 from becoming too high due to the base member 24, thereby avoiding deterioration of the workability of installation on the upper edge portion 3c of the frame. The flexural modulus of elasticity of the material of the base member 24 is more preferably 3500 MPa or less, and still more preferably 3000 MPa or less. In this way, the workability of installation on the upper edge portion 3c of the frame becomes better.

[0065] The thickness of the base member 24 is set to 2 mm or less. That is to say, if the thickness of the base member 24 exceeds 2 mm, the flexural rigidity of the glass run channel main body 21 becomes too high, and when it is to be installed on the upper edge portion 3c of the window frame 3, it sometimes becomes difficult to bend along the shape of the upper edge portion 3c of the frame. However, by setting the thickness of the base member 24 to 2 mm or less, it is possible to prevent the flexural rigidity of the glass run channel main body 21 from becoming too high due to the base member 24, thereby avoiding deterioration of the workability of installation on the upper edge portion 3c of the frame.

[0066] The thickness of the base member 24 is more preferably 1.5 mm or less. By setting the thickness of the base member 24 to 1.5 mm or less, the flexural rigidity of the glass run channel main body 21 is made appropriate, thereby improving the workability when installing on the upper edge portion 3c of the frame. The thickness of the base member 24 is most preferably 1.0 mm or less. In this way, the workability when installing the glass run channel main body 21 on the upper edge portion 3c of the frame is further improved.

[0067] The upper end portion of the base member 24 is composed of an upper side bent portion 24a that bends toward the vehicle interior side. The lower end portion of the base member 24 is composed of a lower side bent portion 24b that bends toward the vehicle interior side. By bending the upper end portion and the lower end portion of the base member 24 toward the vehicle interior side, the upper end portion and the lower end portion of the base member 24 are buried in the vehicle outer side wall portion 21c.

[0068] The base member 24 is integrated with the glass run channel main body 21 by co-extrusion molding together with the glass run channel main body 21. It should be noted that the base member 24 may not be co-extrusion molded with the glass run channel main body 21, but instead, after the glass run channel main body 21 is extrusion molded, the base member 24 may be fixed on the vehicle outer surface of the vehicle outer side wall portion 21c.

[0069] (Structure of the decorative member 25)

[0070] The decorative member 25 is fixed to the outside of the vehicle compartment of the base member 24, and it is a member constituting the exterior design part of the vehicle. The decorative member 25 can be made of, for example, a sheet or film material with a multi-layer structure having an adhesive layer or a bonding layer provided on the back side of the exterior design layer. The exterior design layer is constituted by, for example, a synthetic resin laminated film, a stainless steel thin film, a metal vapor deposition thin film, a film having a decorative pattern formed on the surface, etc. The exterior design layer can also be constituted by a thin film colored in a desired color. The adhesive layer or the bonding layer only needs to be a layer having adhesiveness or bonding property with respect to the base member 24, and a primer layer may be provided between it and the base member 24. It should be noted that the adhesive layer, the bonding layer, or the primer layer can also be provided on the base member 24.

[0071] In this embodiment, the decorative member 25 is continuously fixed from the upper end portion to the lower end portion of the base member 24. The decorative member 25 is also continuously fixed from the front end portion to the rear end portion of the base member 24. When the base member 24 and the glass run channel main body 21 are extrusion molded together, the decorative member 25 can be continuously provided and attached to the outer surface of the vehicle compartment of the base member 24. It should be noted that after integrating the base member 24 and the glass run channel main body 21, the decorative member 25 can also be attached to the outer surface of the vehicle compartment of the base member 24.

[0072] (Installation procedure of the glass run channel)

[0073] When the upper edge portion 230 of the glass run channel 20 is to be installed on the upper edge portion 3c of the window frame 3, the glass run channel mounting plate portion 10 is inserted between the upper wall portion 21a and the lower wall portion 21b of the upper edge portion 230 of the glass run channel. At this time, by bending the upper edge portion 230 of the glass run channel to ensure that the shape of the upper edge portion 230 of the glass run channel corresponds to the shape of the upper edge portion 3c of the frame, the glass run channel mounting plate portion 10 can be inserted from the front end portion to the rear end portion of the upper edge portion 230 of the glass run channel, and in this way, the upper edge portion 230 of the glass run channel can be installed on the upper edge portion 3c of the frame.

[0074] As described above, when the upper edge portion 230 of the glass run channel is to be bent, since the rigidity of the core member 23 and the rigidity of the base member 24 have been appropriately set, the force required for bending is small, and the installation workability is good.

[0075] At the time of installation, the upper edge portion 230 of the linear glass guide groove to which the decorative member 25 is fixed is bent along the shape of the upper edge portion 3c of the frame, but the length of the portion located on the inner side of the bend (lower side portion) is shorter than that of the portion located on the outer side of the bend (upper side portion). Due to this difference in length, wrinkles may be generated in the portion of the decorative member 25 located on the inner side of the bend (lower side portion), but in the present embodiment, since the decorative member 25 is provided on the base member 24 in such a manner that it is continuously fixed from the upper end portion to the lower end portion of the base member 24 having a high bending rigidity, it is difficult for wrinkles to be generated on the decorative member 25.

[0076] (Effect of suppressing indentation)

[0077] Since the decorative member 25 faces the outside of the vehicle after being installed on the window frame 3, for example, articles or the like are likely to come into contact with the decorative member 25. Since the decorative member 25 is also on the surface before being installed on the window frame 3, articles or the like are also likely to come into contact with the decorative member 25. Since the decorative member 25 is fixed to the base member 24 made of a material having a high bending elastic modulus, for example, when an article or the like comes into contact with the decorative member 25, the base member on the back side of the decorative member 25 is difficult to deform, and thus deformation of the decorative member 25 can be suppressed. Therefore, the amount of deformation of the decorative member 25 becomes smaller, and it is difficult to form indentations.

[0078] The effect of suppressing indentation is particularly remarkable when the bending elastic modulus of the material of the base member 24 is 850 MPa or more, and when it is less than 850 MPa, indentations are likely to remain. This is the result obtained based on testing under general use conditions. As a test method, for example, there is a method of obtaining the relationship between the size and depth of the indentation remaining on the decorative member 25 and the bending elastic modulus of the material of the base member 24 when a hard test body is brought into contact with the decorative member 25 at a specified speed. If the bending elastic modulus of the material of the base member 24 is set to 900 MPa or more, the indentation becomes further smaller; if the bending elastic modulus of the material of the base member 24 is set to 950 MPa or more, the indentation becomes extremely small.

[0079] (Functions and effects of the embodiment)

[0080] As described above, according to this embodiment, the core member 23 is buried in the glass guide groove main body 21 made of an elastic material such as an elastomer, the base member 24 having a high bending elastic modulus is provided on the vehicle outside side wall portion 21c of the glass guide groove main body 21, and the decorative member 25 is fixed to the base member 24, so that it is possible to suppress the generation of indentations without deteriorating the installation workability of the installation to the window frame 3.

[0081] By setting the flexural modulus of elasticity of the material of the base member 24 to 850 MPa or more, it is possible to suppress the generation of indentations under normal conditions. Moreover, since the base member 24 extends continuously in the front-rear direction and is continuously provided from the upper end portion to the lower end portion of the vehicle outer side wall portion 21c, it is possible to suppress the generation of indentations in the decorative member 25 over a wide range.

[0082] Since the upper end portion and the lower end portion of the base member 24 are bent toward the vehicle interior side, it is difficult for an object to come into contact with the upper end portion and the lower end portion of the decorative member 25, thereby suppressing peeling of the decorative member 25.

[0083] The above-described embodiments are merely examples in all respects and should not be construed in a limiting sense. Moreover, modifications and changes within the equivalent scope of the claims are included in the scope of the present invention.

[0084] -Industrial Applicability-

[0085] In summary, the glass run for a vehicle door according to the present invention can be installed on the vehicle door and used.

Claims

1. A glass run for an automotive door, which is mounted on a glass run mounting plate portion from the outside of the vehicle compartment. The glass run mounting plate portion is formed at the upper edge portion of the window frame and extends toward the outside of the vehicle compartment. The window frame extends in such a way as to form a window opening in the automotive door. This glass run for the automotive door seals the gap between the window frame and the window glass. It is characterized in that: The glass run for the automotive door includes: A decorative portion having an upper wall portion, a lower wall portion, and an outside vehicle compartment wall portion, and made of an elastic material. The upper wall portion extends along the upper surface of the glass run mounting plate portion, the lower wall portion extends along the lower surface of the glass run mounting plate portion, and the outside vehicle compartment wall portion extends downward from the outside of the vehicle compartment of the upper wall portion and is connected to the outside of the vehicle compartment of the lower wall portion; A core member buried in the decorative portion; A base member provided on the outside of the vehicle compartment of the outside vehicle compartment wall portion and made of a material having a higher flexural modulus than the material making up the decorative portion; and A decorative member fixed to the outside of the vehicle compartment of the base member, The flexural modulus of the material of the base member is 950 MPa or more and 3000 MPa or less, The thickness of the base member is 1.0 mm or less, The base member made of a material obtained by mixing talc or glass fiber into polypropylene and the decorative portion made of a rubber-like elastic material are extrusion molded together, When the base member and the decorative portion are extrusion molded together, the decorative member is continuously attached to the outside of the vehicle compartment of the base member.

2. The glass run for the automotive door according to claim 1, characterized in that: The base member extends continuously in the vehicle front-rear direction and is continuously provided from the upper end portion to the lower end portion of the outside vehicle compartment wall portion.

3. The glass run for the automotive door according to claim 1, characterized in that: The decorative member is provided on the base member in such a way as to be continuously fixed from the upper end portion to the lower end portion of the base member.

4. The glass run for the automotive door according to claim 1, characterized in that: The upper end portion and the lower end portion of the base member are bent toward the inside of the vehicle compartment.

Images