JP2007161200A - Glass run for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run for an automobile capable of certainly retaining a door glass by preventing displacement and vibration of the door glass and preventing generation of a peeling off sound. <P>SOLUTION: In the glass run for the automobile, on an outdoor side side wall 20 and an indoor side side wall 30 of the glass run 10, an outdoor side seal part 50 and an indoor side seal part 60 respectively extending toward an inner side of approximately U shape cross section of a glass run body 11, are provided. At least the indoor side seal part is formed by an indoor side slide lip 61 having one end extended from a distal end of the indoor side side wall 30; and an indoor side extension lip 63 bent from the other end of the indoor side slide lip and extended to a side surface of the indoor side side wall. A hollow indoor side hollow part 67 is formed by the indoor side slide lip 61, the indoor side extension lip 63 and the indoor side side wall, and a recess/projection surface 34 is formed on an inner surface of the indoor side side wall 30 abutted on the indoor side slide lip 61 or the indoor side extension lip 63. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automotive glass run that is attached to the inner periphery of a door frame of an automobile door, guides the raising and lowering of the door glass, and seals between the door frame and the door glass.

As shown in FIG. 5, a glass run 110 for guiding the raising and lowering of the door glass 5 is attached to the inner periphery of the door frame 2 of the door 1. The conventional cross-sectional structure is shown in FIG. FIG. 6 is a cross-sectional view taken along the line AA of FIG.
Although FIG. 5 shows the front door, the rear door has the same configuration.

  Conventionally, the glass run 110 is attached in the channel 3 of the door frame 2 as shown in FIG. 5, and guides the raising and lowering of the door glass 5 and seals between the door glass 5 and the door frame 2. The glass run 110 is connected by a molded part that forms a linear extruded part formed by extrusion molding in accordance with the shape of the corner part of the door frame 2. The seal between the door 1 and the vehicle body is a door weather strip (not shown) attached to the outer periphery of the door panel and the door frame 2 and / or an opening trim weather attached to the flange of the opening of the vehicle body. It is made by a strip (not shown).

As shown in FIG. 6, the glass run 110 includes a glass run body having a substantially U-shaped cross section including an outer side wall 120, an inner side wall 130, and a bottom wall 140. A vehicle outer side seal lip 150 is provided so as to extend from the vicinity of the front end of the vehicle outer side wall 120 toward the inside of the glass run main body having a substantially U-shaped cross section. In addition, the vehicle interior side wall 130 is also provided with a vehicle interior seal lip 160 extending from the vicinity of the front end thereof toward the inside of the glass run body having a substantially U-shaped cross section. The vehicle outer side wall 120, the vehicle inner side wall 130, and the bottom wall 140 are inserted into the channel 3 of the door frame 2, the outer surfaces thereof are in contact with the inner surface of the channel 3, and the glass run 110 is placed on the inner periphery of the door frame 2. Retained and fitted.
Note that low sliding members such as urethane paint are applied to the surfaces of the vehicle outer side seal lip 150 and the vehicle inner side seal lip 160 and the inner surface of the bottom wall 140.

  The end portion of the door glass 5 slides inside the glass run main body having a substantially U-shaped cross section of the glass run 110, and both side surfaces of the end portion of the door glass 5 are supported by the outer side seal lip 150 and the inner side seal lip 160. It is sealed and held (see, for example, Patent Document 1). Further, even if the door glass 5 vibrates during traveling, the lengths of both the vehicle outer seal lip 150 and the vehicle inner seal lip 160 are prevented so that the vehicle outer seal lip 150 and the vehicle inner seal lip 160 are not separated from the door glass 5. There is also one in which the length is set (for example, see Patent Document 2).

  However, due to ventilation or the like, the door glass 5 may be raised or lowered halfway through the door frame 2. At this time, the door glass 5 is not held on the upper side of the door frame 2, and the door glass 5 is held only by the glass runs 110 on both side ends, so that it vibrates in the lateral direction (vehicle width direction). Sometimes. Further, even when the door glass 5 is fully closed, the door glass 5 is sucked out of the vehicle and displaced outwardly when the automobile travels at a high speed, or due to vibration of the vehicle body when traveling on a rough road or the like. May vibrate (see, for example, Patent Document 2).

  At this time, it is pushed by the vibration of the door glass 5, and the vehicle inner side seal lip 160 and the vehicle outer side seal lip 150 are brought into contact with or separated from the vehicle outer side wall 120 and the vehicle inner side wall 130, respectively. . Further, since the vehicle interior seal lip 160 and the vehicle exterior seal lip 150 have a lip shape, the force to absorb the vibration of the door glass 5 is weak, and the door glass is formed inside the glass run body having a substantially U-shaped cross section. 5 could not be held sufficiently strong.

Therefore, it is also conceivable that the vehicle interior seal lip 160 and the vehicle exterior seal lip 150 are formed hollow with respect to the vehicle interior side wall 130 and the vehicle exterior side wall 120 to hold the door glass 5 with the hollow seal lip. (See, for example, Patent Documents 3 and 4).
However, when sealing with a hollow seal portion, the sliding resistance to the door glass 5 is larger than that of the lip-shaped seal lip, the lifting force of the door glass 5 is increased, and abnormal noise is generated during lifting was there.
Therefore, it has been attempted to form a part of the hollow seal portion so as to be easily bent. However, when the door glass is inserted into the glass run body, the bent seal portion adheres to the side wall of the glass run body. When the door glass is removed, a peeling sound may be generated when the adhered seal part is separated from the side wall.
JP 2000-25462 A JP 2002-19473 A Japanese Utility Model Publication No. 54-81522 Japanese Utility Model Publication No. 51-5123

  Accordingly, an object of the present invention is to provide an automotive glass run that can prevent the door glass from being displaced and vibrate to reliably hold the door glass and prevent the generation of peeling noise. To do.

In order to solve the above-mentioned problems, the present invention of claim 1 is attached to the inner periphery of a door frame of an automobile door, guides the raising and lowering of the door glass, and includes an outer side wall, an inner side wall, and a bottom wall. In a glass run for automobiles equipped with a glass run body having a substantially U-shaped cross section,
The vehicle outer side wall and the vehicle inner side wall are respectively provided with a vehicle outer seal portion and a vehicle inner seal portion that extend toward the inner side of the substantially U-shaped cross section of the glass run body. Seal the outside and inside surfaces of both sides of the door glass inserted inside the glass run body,
At least the vehicle interior seal portion includes an interior sliding lip whose one end extends from the front end of the interior sidewall, and an interior extension extending from the other end of the interior sliding lip to the side surface of the interior sidewall. The vehicle interior sliding lip, the vehicle interior extending lip and the vehicle interior side wall form a hollow vehicle interior hollow portion, and the vehicle interior sliding lip or the vehicle interior extending lip contacts the vehicle. It is the glass run for motor vehicles which formed the uneven surface in the inner surface of an inner side wall.

In the first aspect of the present invention, at least the vehicle inner side seal portion has one end extending from the front end of the vehicle inner side wall and a side surface of the vehicle inner side wall bent from the other end of the vehicle inner side slide lip. It is formed from a vehicle-side extending lip extending to the vehicle.
For this reason, when the door glass comes into contact with the vehicle inner seal portion, the tip of the vehicle inner sliding lip comes into contact with the door glass, and the vehicle inner extended lip supports the tip of the vehicle inner sliding lip. The door glass can be securely held at the tip of the sliding lip inside the vehicle. Therefore, even if the door glass vibrates due to vibration of an automobile or the like, it can be reliably sealed. Further, since the vehicle inner sliding lip is supported by the vehicle inner extending lip, the vehicle inner sliding lip can be prevented from being deformed due to secular change.

  A hollow interior side hollow portion was formed by the interior sliding lip, the interior extension lip, and the interior side wall. For this reason, the door glass can be pushed in the vehicle exterior direction by the vehicle interior seal portion formed in a hollow shape, and the step between the door glass and the door frame can be reduced. Moreover, the aesthetics from the vehicle outer side can be improved.

  Since an uneven surface is formed on the inner surface of the vehicle inner side wall where the vehicle inner sliding lip or the vehicle inner extending lip abuts, even if the vehicle inner sliding lip or the vehicle inner extending lip is pressed against the inner surface of the vehicle inner side wall, The contact area is small and there is no close contact. Therefore, even if the door glass returns to a predetermined position and the lip is separated from the uneven surface, no peeling noise (abnormal noise) is generated.

  According to a second aspect of the present invention, the vehicle interior extending lip is formed thinner than the wall thickness of the vehicle interior sliding lip, and is curved or bent convexly toward the interior of the vehicle interior hollow portion. It is.

  In the present invention of claim 2, the vehicle interior extending lip is formed to be thinner than the wall thickness of the vehicle interior sliding lip, and the vehicle interior extending lip is curved or bent convexly toward the interior of the vehicle interior hollow portion. Therefore, when the door glass pushes the vehicle inner seal part, the vehicle inner extension lip is easily refracted at the convexly curved or bent portion, the vehicle inner seal part is easily deformed, and the vehicle inner slide is formed on the vehicle inner side. The moving lip is easily bent, and the sliding resistance of the door glass can be reduced.

  The present invention of claim 3 is the glass run for automobiles in which the uneven surface on the inner surface of the vehicle inner side wall has a ridge having a substantially triangular cross section.

  According to the third aspect of the present invention, since the uneven surface on the inner surface of the vehicle inner side wall is a ridge having a substantially triangular cross section, the vehicle inner sliding lip or the vehicle inner extended lip is pressed against the inner surface of the vehicle inner side wall. In addition, since the vehicle inner sliding lip or the vehicle inner extending lip is in contact with the apex of the ridge having a substantially triangular cross section, it is possible to make contact in line contact, and the contact area can be extremely reduced. For this reason, the lip does not stick to the inner surface of the vehicle interior side wall, and the lip does not stick, so that no peeling noise is generated when the lip leaves the inner surface.

  According to a fourth aspect of the present invention, there is provided a glass run for automobiles in which low sliding members are provided on the surfaces of the vehicle inner sliding lip and the vehicle outer sliding lip and the inner surface of the bottom wall.

  In the present invention of claim 4, since the low sliding member is provided on the surface of the vehicle inner sliding lip and the vehicle outer sliding lip and the inner surface of the bottom wall, the vehicle inner sliding lip and the vehicle outer sliding lip are provided. The surface can reduce the sliding resistance of the portion in contact with the door glass, and the door glass can be smoothly raised and lowered, and no abnormal noise or vibration is generated by rubbing against the door glass during the raising and lowering. Further, the sliding resistance with the side edge of the door glass can also be reduced on the inner surface of the bottom wall.

  According to the fifth aspect of the present invention, the glass run main body, the vehicle interior seal portion and the vehicle exterior seal portion are formed of a thermoplastic elastomer, and the surface of the vehicle interior slide lip and vehicle exterior slide lip and the inner surface of the bottom wall are low. The sliding member is an automotive glass run formed of a thermoplastic elastomer whose hardness is higher than the hardness of the thermoplastic elastomer of the glass run body.

In the present invention of claim 5, since the glass run main body, the vehicle inner seal portion and the vehicle outer seal portion are formed of a thermoplastic elastomer, there is no need for vulcanization molding, which can be manufactured at low cost and recycled. Is also easy. Moreover, since it can be lightly formed compared with a synthetic rubber, it can contribute to weight reduction of a vehicle.
Since the low sliding member on the inner seal part and the outer seal part and the inner surface of the bottom wall are both made of thermoplastic elastomer, the same type of material is used for the glass run body and the low sliding member. The glass run body and the low-sliding member can be simultaneously formed by extrusion, and the production efficiency is good. Further, the glass run body and the low sliding member can be firmly bonded by coextrusion molding.

  The thermoplastic elastomer of the low-sliding member has a higher hardness than the thermoplastic elastomer of the glass run body because the thermoplastic elastomer of the low-sliding member on the surface of the vehicle inner seal portion, the surface of the vehicle outer seal portion, and the inner surface of the bottom wall has a higher hardness. Is easy to slide with the door glass, and the door glass can be easily raised and lowered. Moreover, since it can shape | mold only by changing the hardness of the same kind of thermoplastic elastomer, shaping | molding is easy.

  According to the sixth aspect of the present invention, the glass run main body, the vehicle inner side seal portion and the vehicle outer side seal portion are formed of synthetic rubber, and the surface of the vehicle inner slide lip and the vehicle outer slide lip and the low slip of the inner surface of the bottom wall are formed. The moving member is a glass run for automobiles formed of a low-sliding coating film or a short fiber that is planted.

In this invention of Claim 6, since the glass run main body, the vehicle inner side seal part, and the vehicle outer side seal part are formed with the synthetic rubber, it is rich in elasticity and can absorb the vibration of a door glass easily. In addition, the door glass is hardly deformed even when used for a long time, and the door glass can be reliably sealed for a long time.
The low sliding member on the inner seal part, the outer seal part surface and the inner surface of the bottom wall is made of a low sliding paint film or a short fiber that has been planted. In this case, the coating is easy and the adhesion of the glass run body with the synthetic rubber is good. When the low-sliding member is made of short fibers with flocking, the surface feels good, and the short fibers that have been flocked with dust or sand particles adhering to the door glass surface can move up and down smoothly. Can do.

  According to a seventh aspect of the present invention, the vehicle outer side seal portion is a glass run for automobiles formed by a seal lip or a hollow seal portion.

  In the present invention of claim 7, since the vehicle exterior seal portion is formed by a seal lip or a hollow seal portion, when it is formed by a seal lip, the door glass is abutted and sealed flexibly, and the door glass is raised and lowered. When it is formed with a hollow seal portion, the door glass can be securely held and sealed.

In the present invention, since the hollow interior side hollow portion is formed by the interior sliding lip, the interior extension lip, and the interior side wall, the door glass is moved outwardly by the hollow interior seal portion. Since it can push and the level | step difference of a door glass and a door frame can be made small, the beauty | look from the vehicle outer side can be improved.
An uneven surface is formed on the inner surface of the vehicle inner side wall where the vehicle inner side sliding lip or the vehicle inner side extending lip abuts. The contact area between the concavo-convex surface and the vehicle inner sliding lip or the vehicle inner extension lip is small on the inner surface of the side wall so that it does not adhere to each other, and no peeling noise is generated.

An embodiment of the present invention will be described with reference to FIGS. 1-4 is sectional drawing of the glass run 10 which is a form of 1st-4th embodiment, respectively. FIG. 5 is a side view of the front door of the automobile.
As shown in FIG. 5, a door frame 2 is provided on an upper portion of a door 1 of an automobile, and a door glass 5 is attached to be movable up and down. That is, a channel 3 is provided on the inner periphery of the door frame 2, and a glass run 10 is attached to the channel 3 to guide the raising and lowering of the door glass 5 and to seal between the door glass 5 and the door frame 2. is doing.

First, a first embodiment will be described with reference to FIG.
The glass run 10 of the first embodiment is attached to a press-type door 1. The glass run 10 includes a substantially linear extruded portion formed by extrusion molding as a whole and a molded portion that is formed by molding and connects the extruded portions. The extruded portion includes a portion attached to the upper side of the door frame 2, a portion attached to the rear side vertical side of the door frame 2, and a portion attached to the front side vertical side of the door frame 2. The mold forming part connects these extrusion-molded parts so as to have a shape corresponding to the door frame 2, and is a part to be attached to a corner part of the door frame 2.

The cross-sectional shape of the extrusion molding part attached to the vertical side of the door frame 2 is shown in FIG. FIG. 1 is a cross-sectional view taken along line AA in FIG. FIG. 1 shows a state in which the door glass 5 is located near the inner center of the glass run body 11.
The glass run body 11 including the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40 is formed in a substantially U-shaped cross section. A vehicle outer side seal portion 50 extends from the front end of the vehicle outer side wall 20 toward the inside of the glass run main body 11 with a substantially U-shaped cross section. It extends in the direction.

  When the glass run 10 is attached to the channel 3 of the door frame 2, the outer side wall of the channel 3 comes into contact with the outer surface of the outer side wall 20. The vehicle outer side wall 20 holds the vehicle outer side wall by the vehicle outer side cover lip 21 and the vehicle outer side wall 20, and the vehicle outer side holding lip 22 abuts against the folded portion of the channel 3 to prevent the vehicle outer side wall 20 from coming off. The glass run 10 and the channel 3 are sealed together with the contact with the inner surface of the glass 3.

A vehicle inner side cover lip 31 and a vehicle inner side holding lip 32 are provided on the outer surface of the vehicle inner side wall 30. The vehicle interior side cover lip 31 and the vehicle interior retention lip 32 hold the vehicle interior side wall 30 of the channel 3 to attach the vehicle interior side wall 30 and seal between the glass run 10 and the channel 3.
When the glass run 10 is attached to the channel 3, the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40 have a substantially U-shaped cross section, and the outer surface is in contact with the inner surface of the channel 3 and is stably held. .

The vehicle interior seal portion 60 is configured by a vehicle interior sliding lip 61 and a vehicle interior extending lip 63, and the vehicle interior sliding lip 61 has a substantially U-shaped cross section of the glass run body 11 from the tip of the vehicle interior side wall 30. It extends in the internal direction. A thin wall portion may be provided at the inner root portion of the vehicle inner sliding lip 61 with the vehicle inner side wall 30. When the thin portion is provided, the inner sliding lip 61 is easily bent. A low sliding member, which will be described later, is continuously provided on the surface of the vehicle inner sliding lip 61, and a low sliding surface 65 of the vehicle inner sliding lip 61 is formed. Since this low sliding member is provided, the raising / lowering of the door glass 5 becomes smoother.
In the embodiment of FIG. 1, as will be described later, a material harder than the material constituting the glass run body 11 is used for the low sliding surface 65 of the vehicle interior seal portion 60.

  A vehicle interior extending lip 63 is bent from the front end of the vehicle interior sliding lip 61 toward the vehicle interior side wall 30, and the bent portion serves as a vehicle interior seal front end 62. The vehicle interior seal front end portion 62 is recessed and thin, and is easily bent as the door glass 5 slides and vibrates. Further, by bending the vehicle interior seal tip 62, the vehicle interior seal tip 62 of the vehicle interior sliding lip 61 of the vehicle interior seal portion 60 can come into contact with the door glass 5 in line contact. Can be moved up and down smoothly.

  When the end portion of the door glass 5 exists inside the glass run main body 11, the vehicle inner side seal front end portion 62 of the vehicle inner side seal portion 60 can abut on the vehicle inner side surface of the door glass 5. Further, the length is set so as not to excessively push the vehicle exterior seal portion 50. Thereby, the door glass 5 and the glass run main body 11 can be reliably sealed, and in a state where the door glass 5 does not exist, it is possible to prevent the door glass 5 and the glass run main body 11 from coming into close contact with each other.

  The vehicle interior extending lip 63 is formed to be curved in the shape of a bow or bent at the center as a whole, and to be convex toward the vehicle interior hollow portion 67. In the first embodiment, the vehicle interior extending lip 63 is continuous with the vehicle interior side wall 30 in the vicinity of the lower portion of the vehicle interior side wall 30 close to the bottom wall 40. As a result, the vehicle interior side sliding portion 61 of the vehicle interior seal portion 60, the vehicle interior extended lip 63 and the vehicle interior side wall 30 form a hollow vehicle interior hollow portion 67. The interior hollow portion 67 is elastically deformed to seal the door glass 5 and to ensure a predetermined holding force. When the door glass 5 approaches the vehicle inner side, the portion of the vehicle inner extending lip 63 is bent or compressed to absorb the displacement and vibration of the door glass 5.

As described above, the vehicle interior extending lip 63 is bent, and when the glass run 10 is further displaced toward the vehicle interior, the bent vehicle interior extending lip 63 contacts the inner surface of the vehicle interior side wall 30.
At this time, an uneven surface is formed on the inner surface of the vehicle interior side wall 30. This uneven surface can form, for example, a vehicle inner side wall inner surface groove 34 that is a fine ridge having a triangular cross section continuous in the longitudinal direction. When the vehicle inner side wall inner surface groove 34 is formed on the inner surface of the vehicle inner side wall 30, the contact area with the vehicle inner extension lip 63 is small and does not adhere, and even if the door glass 5 is separated from the glass run body 11, No peeling noise is generated. The depth of the inner side wall inner surface groove 34 of the vehicle inner side wall is preferably about 0.3 mm, and the groove interval is preferably about 0.6 mm.

Further, when the vehicle inner side wall inner surface groove groove 34 on the inner surface of the vehicle inner side wall 30 has a substantially triangular cross section, the door glass 5 is inserted into the glass run body 11 and the vehicle inner extending lip 63 is formed. Even if it is crimped to the inner surface of the vehicle inner side wall 30, the vehicle inner extending lip 63 contacts the apex of the ridge having a substantially triangular cross section, so that it can come into contact in line contact, and the contact area is extremely reduced. In addition, no peeling noise is generated.
If the vehicle interior extension lip 63 is thin and the vehicle interior sliding lip 61 is strongly pressed against the vehicle interior side wall 30, the vehicle interior slide lip 61 may also be in pressure contact with the inner surface of the vehicle interior side wall 30. For this reason, the vehicle interior side wall inner surface groove 34 of the vehicle interior side wall 30 can be provided at a portion where the vehicle interior extending lip 63 abuts and a portion where the vehicle interior sliding lip 61 abuts.

  The wall thickness of the vehicle interior sliding lip 61 gradually decreases from the vicinity of the base with the vehicle interior side wall 30 to the tip, and is easily bent with respect to the door glass 5. The vehicle interior extension lip 63 is formed thinner than the tip portion of the vehicle interior sliding lip 61. For this reason, when the door glass 5 pushes the vehicle interior seal portion 60, the vehicle interior extending lip 63 bends and bends inwardly of the vehicle interior hollow portion 67, and the vehicle interior sliding lip 61 forms the vehicle interior side. It becomes easy to bend in the side wall 30 direction, and the sliding resistance of the door glass 5 can be reduced. The vehicle interior extending lip 63 has a thickness that can be easily bent when the door glass 5 is inserted. For example, when the thickness is set to 0.8 mm or less, the vehicle interior extending lip 63 can have sufficient flexibility. Incidentally, the wall thickness of the vehicle interior sliding lip 61 is about 1.3 mm at the thick part.

  The vehicle interior sliding lip 61 has a cross-sectional shape that is longer in the width direction and thicker than the vehicle exterior sliding lip 51 described later, so that the vehicle interior seal portion 60 attaches the door glass 5 to the glass run body 11. It can be pushed inward in the car. For this reason, the level | step difference of the vehicle outer surface of the door glass 5 and the door frame 2 can be made small, an air resistance can be reduced and abnormal noise can be prevented, and the appearance of the door outer surface can be improved.

The vehicle outer side seal portion 50 is configured by a vehicle outer side sliding lip 51, and the vehicle outer side sliding lip 51 is extended from the front end of the vehicle outer side wall 20 in an internal direction having a substantially U-shaped cross section of the glass run body 11. Yes. On the surface of the vehicle outer side sliding lip 51, an uneven vehicle outer side sliding lip protrusion 53 is formed. The exterior sliding lip ridge 53 uses a material harder than the material constituting the glass run body 11.
In the present embodiment, the vehicle exterior seal portion 50 is formed in a lip shape, but can also be formed in a hollow shape as described in the second embodiment.

On the inner surface of the bottom wall 40, a bottom wall low sliding surface 42 formed of a low sliding member is formed. When the door glass 5 moves up and down, the tip of the door glass 5 comes into contact with the bottom wall low sliding surface 42 and can be moved up and down smoothly, so that no abnormal noise is generated. The bottom wall low sliding surface 42 is provided with a plurality of bottom wall low sliding surface grooves 43 in the longitudinal direction. Even if dust or dust adheres to the bottom wall low sliding surface 42 by the bottom wall low sliding surface groove 43, it can be discharged.
Bottom wall side end groove portions 41 and 41 are provided at the connecting portions of the vehicle outer side wall 20 and the vehicle inner side wall 30 and the bottom wall 40, respectively. By the bottom wall side end groove portions 41, 41, the vehicle outer side wall 20 and the vehicle inner side wall 30 can be bent flexibly with respect to the bottom wall 40, and the glass run 10 can be easily fitted into the channel 3 of the door frame 2. Can do.

As described above, the surface of the vehicle inner sliding lip 61, the surface of the vehicle outer sliding lip 51, and the bottom wall low sliding surface 42 are formed of a low sliding member.
In the embodiment shown in FIG. 1, the low sliding member is formed of a dynamically cross-linked thermoplastic elastomer (TPV) that is harder than the thermoplastic elastomer that forms the glass run body 11. The glass run body 11 is formed of a dynamically cross-linked thermoplastic elastomer (TPV) that is softer than the low sliding member. When this thermoplastic elastomer is an olefin-based thermoplastic elastomer, for example, a harder thermoplastic elastomer having a rubber content of EPDM of 40% and a resin content of polypropylene of 60% is used. In the case of the above thermoplastic elastomer, for example, a rubber component having 70% EPDM and a resin component having 30% polypropylene can be used.
In addition, when the glass run main body 11 etc. are formed with a thermoplastic elastomer, as mentioned above, it is excellent in terms of productivity and weight reduction.

Next, a second embodiment will be described based on FIG.
Similar to the first embodiment, the glass run 10 of the second embodiment is attached to a press-type door 1. The glass run 10 is a synthetic rubber according to the first embodiment. The shape of the outside seal part 50 is different from the point formed by EPDM. Therefore, a different part from 1st Embodiment is demonstrated and description is abbreviate | omitted about the same part.

The shape of the vehicle outer side seal portion 50 is a lip shape in the first embodiment, whereas the shape of the second embodiment is hollow like the vehicle inner seal portion 60. The vehicle interior seal portion 60 is formed by a vehicle exterior sliding lip 51 and a vehicle exterior extending lip 54, one end of the vehicle exterior sliding lip 51 and the vehicle exterior extending lip 54 are connected, and the other distal end is Each is connected to the inner surface 24 of the vehicle outer side wall 20. Near the center of the vehicle outer extension lip 54, a vehicle outer extension lip bent portion 55 bent in a hollow inner direction is formed.
Since the vehicle exterior seal portion 50 is formed in a hollow shape, the glass run 10 can be reliably held by the vehicle exterior seal portion 50 and the vehicle interior seal portion 60, and the sealing performance is good.

The vehicle outer extending lip 54 is formed thinner than the vehicle outer sliding lip 51. For this reason, when the door glass 5 pushes the vehicle outer side seal portion 50, the vehicle outer side extending lip 54 is bent and bent in the vehicle outer side hollow portion inner direction, and the vehicle outer side sliding lip 51 is bent. It becomes easy to bend in the direction.
In the second embodiment, the glass run main body 11, the vehicle inner side seal portion 60, and the vehicle outer side seal portion 50 are formed of EPDM. This EPDM has a hardness of IRHD of 60 ° to 90 °. Further, urethane paint is applied as a low sliding member.

Nylon short fibers can be planted instead of urethane paint. For this reason, sliding resistance can be reduced similarly to 1st Embodiment.
The low-sliding member can be used as long as it has a low frictional resistance with the door glass 5 other than urethane paint. For example, a TPV sheet, a fluororesin non-woven cloth, a polyethylene sheet, a silicon coat Etc. can be used.

Next, a third embodiment will be described with reference to FIG.
The glass run 10 according to the third embodiment is attached to the sash type door 1 and is different from the first embodiment in that the vehicle interior side wall 30, the vehicle interior seal portion 60, the vehicle exterior side wall 20, and The shape of the vehicle outer side seal portion 50 is different. Therefore, a different part from 1st Embodiment is demonstrated and description is abbreviate | omitted about the same part.

  In the glass run 10 of the third embodiment, the vehicle interior seal portion 60 is composed of a vehicle interior slide lip 61 and a vehicle interior extension lip 63, as in the first embodiment, The moving lip 61 is extended from the front end of the vehicle interior side wall 30 in the internal direction of the substantially U-shaped cross section of the glass run body 11. First, similarly to the embodiment, the glass run main body 11, the vehicle inner side seal portion 60, and the vehicle outer side seal portion 50 are formed of a dynamically crosslinked thermoplastic elastomer (TPV).

  A vehicle interior extending lip 63 is bent from the front end of the vehicle interior sliding lip 61 toward the vehicle interior side wall 30, and the bent portion serves as a vehicle interior seal front end 62. Due to the bending of the vehicle inner seal front end 62, the vicinity of the vehicle inner sliding lip 61 of the vehicle inner seal 60 can come into contact with the door glass 5 in line contact, and the sealing performance is improved. Can be moved up and down smoothly. In the third embodiment, the vehicle interior extending lip 63 is formed to be slightly thinner than the first embodiment.

  The vehicle interior extending lip 63 is continuous with the vehicle interior side wall 30 in the vicinity of the lower portion of the vehicle interior side wall 30. An inboard extension lip bent portion 64 is provided on the surface on the side of the inboard hollow portion 67 slightly closer to the inboard sliding lip 61 side than the center of the inboard extension lip 63. The vehicle interior extension lip 63 is bent at the vehicle interior extension lip bent portion 64.

For this reason, the vehicle interior extending lip 63 is easily bent in the interior direction of the vehicle interior hollow portion 67 around the vehicle interior extending lip bent portion 64, and when the door glass 5 pushes the vehicle interior seal portion 60, The vehicle interior extending lip 63 is bent toward the inside of the vehicle interior hollow portion 67, and the vehicle interior sliding lip 61 is easily bent toward the vehicle interior side wall 30. For this reason, the sliding resistance of the door glass 5 can be reduced. Further, since the vehicle interior extending lip 63 is easily bent, the bending of the vehicle interior sliding lip 61 absorbs the vibration of the door glass 5.
At this time, a vehicle inner side wall inner surface groove 34 is formed on the inner surface of the vehicle inner side wall 30 as in the first embodiment. For this reason, the vehicle interior extending lip 63 and the vehicle interior sliding lip 61 are not in close contact with the inner surface of the vehicle interior side wall 30, and the generation of abnormal noise can be prevented.

  The vehicle interior side cover lip 31 of the vehicle interior side wall 30 covers the front end of the door frame 2 according to the shape of the door frame 2 and extends to the front end of the door frame 2 so as to hold and seal the vehicle interior side wall 30. It is installed. A first vehicle inner side holding lip 32 and a second vehicle inner side holding lip 33 are provided on the outer surface of the vehicle inner side wall 30 so as to be respectively engaged with the recesses of the channel 3.

  The vehicle exterior side wall 20 is formed with a vehicle exterior seal portion 50. In the third embodiment, the vehicle exterior slide lip 51 and the vehicle exterior seal lip 52, which are two seal lips, are formed. Yes. The vehicle outer side sliding lip 51 is formed below the vehicle outer side sealing lip 52, and the surface of the vehicle outer side sealing portion 50 is arranged in the longitudinal direction in the same manner as the vehicle outer side sliding lip 51 of the first embodiment. A vehicle outer sliding lip protrusion 53 is formed. For this reason, when the door glass 5 is inserted in the glass run main body 11, the front-end | tip of the door glass 5 becomes easy to slide.

The vehicle exterior seal portion 50 extends obliquely upward from the front end of the vehicle exterior side wall 20 in the direction of the door glass 5. When the door glass 5 is inserted into the glass run main body 11, the front end of the door glass 5 can abut against the surface of the door glass 5 to be sealed.
Similarly, the vehicle outer side cover lip 21 of the vehicle outer side wall 20 is formed to be small so as to cover the tip of the door frame 2 in accordance with the shape of the door frame 2 and to hold and seal the vehicle outer side wall 20.
A bottom wall low sliding surface 42 and a bottom wall low sliding surface groove 43 are also formed on the inner surface of the bottom wall 40.
As in the first embodiment, the low sliding members formed on the surfaces of the vehicle inner sliding lip 61 and the vehicle outer sliding lip 51 and the inner surface of the bottom wall 40 are hard TPVs.

Next, a fourth embodiment will be described with reference to FIG.
The glass run 10 of the fourth embodiment is attached to the sash type door 1 as in the third embodiment, and is formed of EPDM as in the second embodiment. The surface state of the vehicle outer side sliding lip 51 and the bottom wall 40 is different from the third embodiment. Therefore, a different part from 3rd Embodiment is demonstrated and description is abbreviate | omitted about the same part.

In the fourth embodiment, as in the second embodiment, the glass run main body 11, the vehicle exterior seal portion 50, and the vehicle interior seal portion 60 are formed of EPDM, and the vehicle interior slide lip 61, vehicle exterior slide, Instead of the hard low sliding material, urethane paint is applied to the surfaces of the moving lip 51 and the bottom wall 40. For this reason, the sliding resistance of the surface is low, and when the door glass 5 moves up and down, it can move up and down smoothly.
Further, urethane paint is also applied to the inner surface of the vehicle outer side wall 20. For this reason, even if the vehicle exterior sliding lip 51 is pressure-bonded by the door glass 5, the vehicle exterior sliding lip 51 does not adhere to the inner surface of the vehicle exterior side wall 20, and no peeling noise is generated.

Next, the manufacturing method of the glass run 10 of this invention is demonstrated. The glass run 10 first molds the extruded portion of the straight portion. Extrusion molding is performed using a thermoplastic elastomer or synthetic rubber. The cross-sectional shape of the glass run 10 at the time of extrusion molding is extrusion-molded so that the tip portion which is a substantially U-shaped opening is slightly opened. Thereby, the front ends of the vehicle inner side seal portion 60 and the vehicle outer side seal portion 50 are separated from each other, and the hollow shape can be extruded without contacting each other. Thereby, the hollow vehicle inner side seal part 60 and the vehicle outer side seal part 50 can be extruded into a predetermined shape.
When forming the hollow car inner side seal part 60 and the car outer side seal part 50 by extrusion molding, in order to prevent the hollow part from becoming a negative pressure and crushing at the time of extrusion molding, from the extrusion die to the hollow part. A controlled pressure of air is supplied.

In the case of synthetic rubber, it is conveyed to a vulcanizing tank after extrusion and heated by hot air or high frequency to vulcanize. In the case of a thermoplastic elastomer or a soft synthetic resin, it is cooled and solidified. Thereafter, it is cut to a predetermined length, and the manufacture of the extruded part is completed.
Next, the molding part to be mounted on the corner portion of the door frame 2 is molded by a mold, and the extrusion molding part and the molding part are vulcanized and bonded using the same material or the same type of material. Because it can, it is fixed integrally. In the case of a thermoplastic elastomer or a soft synthetic resin, since the injection material is melted when injected into the mold, the extruded part and the molded part are integrally fused by the heat.

It is sectional drawing of the glass run which is the 1st Embodiment of this invention, and is sectional drawing along the AA of FIG. It is sectional drawing of the glass run which is the 2nd Embodiment of this invention, and is sectional drawing along the AA line of FIG. It is sectional drawing of the glass run which is the 3rd Embodiment of this invention, and is sectional drawing along the AA of FIG. It is sectional drawing of the glass run which is the 4th Embodiment of this invention, and is sectional drawing along the AA of FIG. It is a side view of a motor vehicle door. It is the cross-sectional shape of the conventional glass run. It is the cross-sectional shape of the other conventional glass run.

Explanation of symbols

2 Door frame 5 Door glass 10 Glass run 11 Glass run body 20 Car outer side wall 30 Car inner side wall 34 Car inner side wall inner surface groove 40 Bottom wall 50 Car outer seal part 51 Car outer sliding lip 55 Car outer extending lip 60 Car Inner seal part 61 Car interior sliding lip 62 Car interior seal part bent part 65 Car interior extension lip

Claims (7)

Automotive glass mounted on the inner periphery of a door frame of an automobile door, guiding the raising and lowering of the door glass, and having a glass run body having a substantially U-shaped cross section comprising an outer side wall, an inner side wall, and a bottom wall In the run
The vehicle outer side wall and the vehicle inner side wall are respectively provided with a vehicle outer seal portion and a vehicle inner seal portion that extend toward the inside of the glass run main body having a substantially U-shaped cross section. Sealing the vehicle outer side surface and the vehicle inner side surface of both side ends of the door glass inserted inside the glass run body by the seal part,
At least the vehicle interior seal portion has one end extending from the front end of the vehicle interior side wall and a vehicle interior slide lip that is bent from the other end of the vehicle interior slide lip and extends to the side surface of the vehicle interior side wall. A vehicle interior sliding lip, a vehicle interior extending lip and a vehicle interior side wall to form a hollow vehicle interior hollow portion, and the vehicle interior sliding lip or vehicle interior extending lip. A glass run for automobiles, wherein an uneven surface is formed on the inner surface of the vehicle inner side wall with which the installation lip contacts.   The automobile interior extension lip according to claim 1, wherein the vehicle interior extending lip is formed to be thinner than a wall thickness of the vehicle interior sliding lip and is curved or bent convexly toward the inside of the vehicle interior hollow portion. Glass run.   The glass run for automobiles according to claim 1 or 2, wherein the uneven surface on the inner surface of the vehicle inner side wall is a ridge having a substantially triangular cross section.   The glass run for automobiles according to any one of claims 1 to 3, wherein a low sliding member is provided on a surface of the vehicle interior sliding lip and the vehicle exterior sliding lip and an inner surface of the bottom wall.   The glass run body, the vehicle interior seal portion, and the vehicle exterior seal portion are formed of a thermoplastic elastomer, and the surface of the vehicle interior slide lip and the vehicle exterior slide lip and the inner surface of the bottom wall are low slidable. The glass run for automobiles according to claim 4, wherein the member is formed of a thermoplastic elastomer having a hardness higher than that of the thermoplastic elastomer of the glass run body.   The glass run body, the vehicle interior seal portion, and the vehicle exterior seal portion are made of synthetic rubber, and are low sliding members on the surfaces of the vehicle interior slide lip, the vehicle exterior slide lip, and the inner surface of the bottom wall. The glass run for automobiles according to claim 4, wherein the glass run is formed of a low-sliding coating film or a short fiber that is flocked.   The glass run for automobiles according to any one of claims 1 to 6, wherein the vehicle exterior seal portion is formed of a seal lip or a hollow seal portion.