JP5875765B2 - Glass run channel and glass run channel assembly - Google Patents

Description

  The present invention relates to a glass run channel and a glass run channel assembly used for a front door and a rear door of a vehicle.

For example, in a glass run channel that is mounted on a run frame mounting portion of a window frame provided on the front door or rear door of a vehicle and guides the window plate up and down, the run channel main body that forms the main part includes a base portion, a vehicle interior side, Both side walls on the outside of the vehicle and both seal lips on the inside and outside of the vehicle that can be elastically contacted with both sides of the window plate are provided.
In addition, a structure in which a vehicle outer side holding lip and a vehicle inner side holding lip that can be engaged with the run frame mounting portion of the window frame provided on the vehicle body panel are formed on the outer surfaces of both side walls on the vehicle inner side and the vehicle outer side, respectively. It has been known.
Some glass run channels of this type are formed from a foamed polymer material in order to reduce the weight (for example, see Patent Document 1).
The glass run channel is generally formed by extrusion.
In addition, in order to connect the end portions of the two glass run channels in an integrally continuous manner through the connecting body, the end portions of the two glass run channels are set in an injection mold, A thermoplastic material is injected into the connector to form a connection body. Then, at the same time as forming the connection body, the end portions of the glass run channel are connected to each other via the connection body to manufacture a glass run channel assembly.
Moreover, after setting the terminal part of one glass run channel in a shaping | molding die, a thermoplastic material may be inject | emitted in a shaping | molding die and another member may be formed in the terminal part of the glass run channel.

JP 2009-120048 A

By the way, the glass run channel, which is an extruded product of the foamed polymer material, is superior in terms of weight reduction compared to the non-foamed glass run channel, but weak and inferior in terms of rigidity.
In particular, the vehicle outer side holding lip and the vehicle inner side holding lip are formed to be thinner than the other portions, so that the vehicle outer side holding lip and the vehicle inner side holding lip are more easily deformed than the other portions.
For example, as shown in FIG. 8, after the end 435 of the glass run channel 431 of the foamed polymer material is set in the injection molds 500 and 501, the thermoplastic polymer material 442 is injected into the molds 500 and 501. When the connecting body (or other member) 441 is formed, the outer side and inner side holding lips 460 and 461 of the end 435 of the glass run channel 431 receive the material flow pressure of the injected thermoplastic polymer material 442. It may be deformed unexpectedly.
In this case, as shown in FIG. 7, the connecting body (or other member) 441 in a state where the end portions 435 of the glass run channel 431 and the end portions 460 a and 461 a of the inboard holding lips 460 and 461 remain deformed. It will be joined to the edge part 441a. For this reason, it is peeled off at the joint portion between the end portions 460a and 461a of the vehicle outer side and vehicle inner side holding lips 460 and 461 and the end portion 441a of the connection body (or other member) 441, or the engagement force of the door panel with the window frame is reduced There is a risk of malfunctions such as

  In view of the above problems, an object of the present invention is to provide a glass run channel and a glass run channel assembly that can suppress unexpected deformation of both the holding lip on the outside and the inside of the vehicle while reducing the weight. is there.

In order to solve the above-mentioned problems, a glass run channel according to claim 1 of the present invention is a long and polymer material that is mounted on a run mounting portion of a window frame of a vehicle door and guides the up-and-down movement of the window plate. A glass run channel,
The run channel main body forming the main part of the glass run channel has a base portion provided at a position facing an end face of the window plate,
Both side walls on the vehicle inner side and the vehicle outer side rising from both ends in the width direction of the base part,
Both seal lips on the vehicle inner side and on the vehicle outer side that protrude toward the base portion from the opening side front ends of the both side wall portions and can be elastically contacted with both surfaces of the window plate, respectively.
With
On the outer surfaces of the both side walls on the vehicle inner side and the vehicle outer side, both holding lips on the vehicle inner side and the vehicle outer side that protrude in a direction away from the both side wall portions and can be engaged with the run mounting portion of the window frame are formed. ,
At least one portion of the base portion and the side wall portions is formed of a foamed foamed polymer material,
At least a part including the tip portions of both the inside and outside holding lips of the vehicle is formed of a second polymer material having a lower expansion ratio than the foamed polymer material or not foamed. To do.

According to the said structure, since the run channel main body which makes the main part of a glass run channel is formed from the foamed polymer material, weight reduction can be aimed at favorably compared with the case where it forms from a non-foamed polymer material.
Further, at least a part including the tip portions of the holding lips on both the vehicle inner side and the vehicle outer side is formed of a second polymer material (a polymer material having a lower expansion ratio than the foamed polymer material or not foamed). For this reason, it becomes easy to form both the holding lips on the vehicle inner side and the vehicle outer side in a desired shape as compared with the case where the holding lip is formed from the foamed polymer material.
In addition, at least a part including the front end portions of the holding lips on both the vehicle inner side and the vehicle outer side is formed of the second polymer material and has high rigidity. For this reason, unexpected deformation of both the holding lips on the vehicle inner side and the vehicle outer side can be suppressed even when, for example, the aforementioned connecting body is injection molded.

The glass run channel according to claim 2 is the glass run channel according to claim 1,
The run channel body made of a foamed polymer material has a foaming ratio of 1.20 to 1.80.

  According to the said structure, in addition to the effect of the invention of Claim 1, the weight reduction effect is large by setting the expansion ratio of the run channel body to 1.20 to 1.80.

The glass run channel according to claim 3 is the glass run channel according to claim 1 or 2,
At least one of the holding lips on the vehicle inner side and the vehicle outer side is formed of the second polymer material.

  According to the said structure, in addition to the effect of invention of Claim 1 or 2, the holding lip formed entirely with the 2nd polymer material is still more rigid, and it becomes difficult to produce unexpected deformation | transformation.

The glass run channel according to claim 1 is :
Both vehicle interior and vehicle exterior decoration parts projecting from the opening side tips of both side walls on the vehicle interior and vehicle exterior side opposite to the seal lips on the vehicle interior and vehicle exterior,
The third polymer in which the portion including the tip of at least one of the decorative portions on the vehicle inner side and the vehicle outer side has a lower expansion ratio than the foamed polymer material forming the run channel main body or is not foamed. It is formed of a material.

According to the above configuration, in addition to the above-described effect of claim 1, the portion including the tip of at least one of the decorative portions on the vehicle inner side and the vehicle outer side has a third polymer material (more than the foamed polymer material). because was that have been formed in the expansion ratio is not less than or foamed polymeric material), both the decorative part of the interior side and exterior side is easily shaped to a desired than when formed of foamed polymeric material .
Moreover, the part including the front-end | tip of at least one decoration part among the decoration parts of a vehicle inside and a vehicle exterior is formed from the 3rd polymer material, and its rigidity is high. For this reason, the unexpected deformation | transformation of both the vehicle interior and vehicle exterior decoration parts can be suppressed.

The glass run channel according to claim 4 is the glass run channel according to any one of claims 1 to 3 ,
The second polymer material and the third polymer material are the same polymer material.

According to the said structure, in addition to the effect of the invention as described in any one of Claims 1-3, since the 2nd polymer material and the 3rd polymer material are the same polymer materials, material management is easy. Thus, the effect of reducing the manufacturing cost is great.

The glass run channel according to claim 5 is the glass run channel according to any one of claims 1 to 4 ,
The portions of both the inside and outside seal lips that come into contact with the window plate are made of a foamed polymer material, a second polymer material, and a low friction material having a smaller coefficient of dynamic friction with respect to the window plate and door panel than the third polymer material. Both low friction layers on the vehicle interior and vehicle exterior are formed, respectively.

According to the said structure, in addition to the effect of the invention as described in any one of Claims 1-4, it is a window by the low friction layer formed in the site | part which contacts the window board of both the vehicle inside and vehicle outside seal lips. The frictional force at the time of raising and lowering the plate can be reduced. As a result, the raising / lowering operation of the window plate is smoothed.

The glass run channel assembly according to claim 6 uses at least two glass run channels according to any one of claims 1 to 5 ,
The glass run channels are configured to be integrally and continuously joined by a connecting body.

According to the said structure, the glass run channel assembly of a desired shape and length is easily obtained by joining at least 2 glass run channels together by a connection body integrally.
Moreover, it is also possible to join each end surface firmly by injection-molding a connection body between the opposing end surfaces of at least two glass run channels.
In addition, at least a part including the front end portions of the holding lips on both the vehicle inner side and the vehicle outer side is formed of the second polymer material and has high rigidity. For this reason, the unexpected deformation | transformation of both the holding lip of a vehicle inside and a vehicle outside can be suppressed.
As a result, after the end of the glass run channel is set in an injection mold, a thermoplastic polymer material is injected into the mold to form a connection body. It is possible to suppress a problem that both the holding lips on the outside of the vehicle are deformed unexpectedly due to the material flow pressure of the thermoplastic polymer material. As a result, the opposing end surface of a glass run channel can be favorably connected through a connection body.

It is a side view which simplifies and shows the state by which the glass run channel assembly using the glass run channel which concerns on Example 1 of this invention was each attached to the window frame of the front door, and the window frame of the rear door. It is a side view which similarly shows a glass run channel assembly. FIG. 3 is a cross-sectional view of the glass run channel along the line III-III in FIG. 1. It is a cross-sectional view of the glass run channel which concerns on Example 2 of this invention. It is explanatory drawing which shows the embodiment by which the layered reinforcement layer was formed with the 2nd polymer material on the front end side surface of the vehicle inside holding | maintenance lip. It is explanatory drawing which shows the embodiment by which the whole front-end | tip part of the vehicle inner side holding lip was formed and reinforced with the 2nd polymer material. It is a perspective view which shows the glass run channel assembly joined to the edge part of the connection body in the state in which the edge part of the vehicle outer side or vehicle inner side holding | maintenance lip | rip of the glass run channel formed from the conventional foamed polymer material has deform | transformed. . It is explanatory drawing which shows the state which the holding lip of the edge part of the glass run channel made from a foaming polymer material similarly set in the shaping | molding die of injection molding received the material flow pressure, and was deform | transformed.

  A mode for carrying out the present invention will be described in accordance with an embodiment.

A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, a window frame 20 is integrally formed on a door panel 12 that forms a front door 10 as a vehicle door.
The window frame 20 is formed with a run mounting portion 25 having a stepped shape with a narrow opening side and a wide back side by the outer panel 13 and the inner panel 14 constituting the door panel 12 (see FIG. 3).

  As shown in FIG. 1 and FIG. 2, from a long and polymer material (thermoplastic elastomer material) that is mounted on a window frame 20 of a front door 10 as a vehicle door and guides the window plate 15 to move up and down. The front glass run channel assembly 30 is formed of a first to fourth glass run channels 31, 32, 33, 34 formed in an elongated shape by extrusion molding, and first to third glass run channels formed by injection molding. Connection bodies 41, 42, 43.

The first glass run channel 31 is mounted along the upper side portion and the front oblique side portion of the front door 10.
The rear end of the first glass run channel 31 is connected to the upper end of the second glass run channel 32 by a first connection body (corner connection body) 41. The second glass run channel 32 is mounted along the rear vertical side of the front door 10.
The upper end of the third glass run channel 33 is connected to the front end of the first glass run channel 31 by a second connection body (corner connection body) 42. The third glass run channel 33 is mounted along the front vertical frame portion extending from the rear edge of the front quarter window of the front door 10 to the inside of the door.
The lower end of the second glass run channel 32 is located in the door, and the upper end of the fourth glass run channel 34 is connected to the lower end by a third connector 43. The fourth glass run channel 34 is mounted along the rear vertical frame portion in the door.

Of the first to fourth glass run channels 31 to 34 constituting the glass run channel assembly 30 on the front side, the first glass run channel 31 is constituted by an extruded product having a cross-sectional shape as shown in FIG. Is done.
The run channel main body 50 constituting the main portion of the first glass run channel 31 includes a base portion 51 provided at a position facing the end face of the window plate 15, rising from both ends in the width direction of the base portion 51, and The side wall portion 52 on the vehicle outer side and the side wall portion 53 on the vehicle inner side that constitute a groove that can move up and down at the periphery. The run channel main body 50 protrudes from the vehicle outer side connection portion 56 and the vehicle inner side connection portion 57 at the opening end of the side walls 52 and 53 toward the base portion 51 and elastically contacts both surfaces of the window plate 15. It has a possible vehicle exterior seal lip 62 and vehicle interior seal lip 65.
Further, the run channel main body 50 is located on the opposite side of the both outside and inside seal lips 62 and 65 from both the outside and inside connecting portions 56 and 57 at the opening end of both side walls 52 and 53. The vehicle exterior decoration portion 67 and the vehicle interior decoration portion 68 are provided so as to protrude toward each other and are formed in a folded shape along both side wall portions 52 and 53.
That is, the vehicle exterior decoration portion 67 and the vehicle exterior seal lip 62 and the vehicle interior decoration portion 68 and the vehicle interior seal lip 65 are connected by the vehicle exterior connection portion 56 and the vehicle interior connection portion 57, respectively. .
Each decorative portion 67, 68 and each seal lip 62, 65 have a bending point (typically the thinnest portion in the vicinity of the root portion) that becomes the center of deformation when displaced. The connecting portions 56 and 57 are integrated with the decorative portions 67 and 68 and the seal lips 62 and 65 with each bending point as a boundary.

The run channel body 50 is formed from a foamed polymer material.
Furthermore, it is desirable that the run channel body 50 has an expansion ratio of 1.20 to 1.80 in order to reduce weight and secure sufficient strength.
The foamed polymer material forming the run channel body 50 is preferably blended with 0.5 to 2.0 parts by weight of thermally expandable capsules with respect to 100 parts by weight of the thermoplastic elastomer material.
Further, it is more desirable that the foamed polymer material forming the run channel body 50 is blended with 1.0 part by weight of thermally expandable capsules with respect to 100 parts by weight of the thermoplastic elastomer material.
The run channel main body 50 is preferably closed cells in which the foam cells in the run channel main body 50 are not in communication with the outside air, and further, the closed cells in which the foam cells in the run channel main body 50 are not in communication with each other. It is even more desirable that
The run channel body 50 preferably has a specific gravity of 0.50 to 0.80, more preferably 0.55 to 0.75, and a specific gravity of 0.65. desirable.

In addition, as a thermoplastic elastomer material which is a main component of the run channel main body 50, for example, EPDM (ethylene / propylene / diene copolymer) and PP (polypropylene) are mixed, and a plasticizer, a colorant and the like are mixed therewith. The one containing the additive is used.
The thermally expandable capsule is, for example, a thermally expandable microcapsule (manufactured by Sekisui Chemical Co., Ltd., trade name Advancel, average particle size 22 μm to 32 μm, expansion start temperature 160 ° C. to 180 ° C., both catalog values). Used.

  As shown in FIG. 3, the outer side walls 52 and the outer side walls 53 of the run channel main body 50 are inclined in the direction away from the side walls 52 and 53, respectively. A lip-shaped vehicle outer side holding lip 60 and a vehicle inner side holding lip 61 are formed. The vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 are elastically engaged with the vehicle outer side stepped portion 13a and the vehicle inner side stepped portion 14a of the window frame 20 to prevent them from coming off.

Further, at least a part of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 including the front end portions thereof are the same material as or compatible with the foamed polymer material forming the run channel main body 50 and have a foaming ratio larger than that of the foamed polymer material. Is made of a second polymeric material that is small or unfoamed.
In the first embodiment, the entirety of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 is formed of the second polymer material.
The vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 are formed by coextrusion (two-color molding) simultaneously with the extrusion molding of the run channel main body 50.

Further, in the run channel main body 50, the surface from the front end portion of the vehicle exterior decoration portion 67 to the connection portion 56 outside the vehicle, and the surface from the front end portion of the vehicle interior decoration portion 68 to the connection portion 57 inside the vehicle, A vehicle outer side coating layer 67a and a vehicle inner side coating layer 68a that cover both surfaces are formed.
The vehicle exterior covering layer 67 a of the vehicle exterior decoration portion 67 and the vehicle interior coating layer 68 a of the vehicle interior decoration portion 68 have a third expansion ratio smaller than that of the foamed polymer material forming the run channel body 50 or not foamed. It is made of a polymer material.
Further, in the first embodiment, the vehicle outer side coating layer 67a and the vehicle inner side coating layer 68a are formed so as to be folded back on the back surface beyond the front end portions of the vehicle outer side decoration portion 67 and the vehicle inner side decoration portion 68.
Further, the vehicle outer side coating layer 67a and the vehicle inner side coating layer 68a cover the surfaces of the vehicle outer side decoration portion 67 and the vehicle inner side decoration portion 68 to the middle of the surfaces of the vehicle outer side connection portion 56 and the vehicle inner side connection portion 57, respectively. However, it is preferable that the entire surfaces of the connecting portions 56 and 57 are covered.

Further, in the first embodiment, the low friction layers 63 and 66 on both the vehicle outer side and the vehicle inner side are formed on the surfaces of the vehicle outer seal lip 62 and the vehicle inner seal lip 65 that contact the window plate 15. . Both the low friction layers 63 and 66 are made of the same material as or compatible with the run channel body 50 and are made of a foamed polymer material (run channel body 50), a second polymer material (the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61). ) And the third polymer material (the vehicle outer covering layer 67a and the vehicle inner covering layer 68a) from the low friction material (thermoplastic elastomer material or thermoplastic resin material) having a smaller coefficient of dynamic friction with respect to the window plate 15 and the door panel 12. The main body 50 is formed by coextrusion simultaneously with the extrusion molding.
Further, it is desirable that both the low friction layers 63 and 66 on the vehicle outer side and the vehicle inner side are continuous with both the coating layers 67a and 68a on the vehicle outer side and the vehicle inner side.
In FIGS. 3 and 4, the thickness of each layer is shown in order to clarify the boundary between the low friction layers 63 and 66 on the vehicle outer side and the vehicle inner side and the coating layers 67a and 68a on the vehicle outer side and the vehicle inner side. Is highlighted with a difference.

  Further, in the first embodiment, the low friction material having a smaller dynamic friction coefficient than that of the run channel main body 50 on the opposite surface of the side wall portion 52 on the vehicle outer side and the side wall portion 53 on the vehicle inner side and the bottom surface of the base portion 51 of the run channel main body 50. The low-friction layers 52a, 53a, and 51a are formed by coextrusion (two-color molding) simultaneously with the extrusion molding of the run channel main body 50.

In addition, the main portions of the second, third, and fourth glass run channels 32, 33, and 34 among the first to fourth glass run channels 31 to 34 constituting the front glass run channel assembly 30 are provided. The formed run channel main body is configured in the same manner as the run channel main body 50 forming the main part of the first glass run channel 31 except that the cross-sectional shape is different.
That is, the run channel main body forming the main part of the second, third, and fourth glass run channels 32, 33, and 34 is also formed of a foamed polymer material including a thermoplastic elastomer material and a thermally expandable capsule. It has a myriad of foam cells formed by foam expansion of thermally expandable capsules.
Of the first to fourth glass run channels 31 to 34, two or more glass run channels, for example, the second glass run channel 32 and the third glass run channel 33 have the same cross-sectional shape. You may do it.

  Further, as shown in FIGS. 1 and 2, a long and polymer material (thermoplastic elastomer material) that is attached to a window frame 120 of a rear door 110 as a vehicle door and guides the up-and-down movement of the window plate 115. The rear glass run channel assembly 130 is made up of first to fifth glass run channels 131, 132, 133, 134, 135 formed in an elongated shape by extrusion molding and a first glass run channel formed by injection molding. To fourth connecting bodies 141, 142, 143, 144.

The first glass run channel 131 is mounted along the upper side of the rear door 110.
The rear end of the first glass run channel 131 is connected to the upper end of the second glass run channel 132 by a first connection body (corner connection body) 141. The second glass run channel 132 is mounted along the rear edge of the rear quarter window of the rear door 110.
The upper end of the third glass run channel 133 is connected to the front end of the first glass run channel 131 by a second connection body (corner connection body) 142. The third glass run channel 133 is mounted along the front vertical side portion of the rear door 110.
The upper end of the fourth glass run channel 134 is connected to the lower end of the second glass run channel 132 by the third connector 143. The fourth glass run channel 134 is mounted along the rear vertical frame portion in the door. Further, the upper end of the fifth glass run channel 135 is connected to the lower end of the third glass run channel 133 by a fourth connector 144. The fifth glass run channel 135 is mounted along the front vertical frame portion in the door.

In the first embodiment, among the first to fifth glass run channels 31 to 35 constituting the rear glass run channel assembly 130, the first glass run channel 131 is the front glass run channel group. The first glass run channel 31 of the solid 30 is formed in the same structure (see FIG. 3).
Further, the run channel body constituting the main part of the second to fifth glass run channels 132 to 135 constituting the rear glass run channel assembly 130 is the first glass run channel except that the cross sectional shape is different. The configuration is the same as that of the run channel main body 131.

The glass run channel according to the first embodiment is configured as described above.
Accordingly, the first to fourth glass run channels 31 to 34 constituting the front glass run channel assembly 30 and the first to fifth glass run channels 131 to 135 constituting the rear glass run channel assembly 130. Since the run channel main body 50 that forms the main part is formed of a foamed polymer material including a thermoplastic elastomer material and a thermally expandable capsule, the weight can be reduced favorably compared with a rubber glass run channel. it can.

In addition, at least a part of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 including the distal end portions thereof has a lower foaming ratio or foams than the second polymer material (the foamed polymer material forming the run channel main body 50). Not polymer material).
For this reason, compared with the case where the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 are formed from a foamed polymer material, it becomes easier to form them in a desired shape.
Further, at least a part of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 including the distal end portions are formed of the second polymer material and have high rigidity. For this reason, the unexpected deformation | transformation of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 can be suppressed.

In addition, when the entire vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 are formed of the second polymer material, the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 become more rigid, and unexpected deformation is caused. Less likely to occur.
Moreover, the effect of weight reduction is large by setting the expansion ratio of the run channel main body 50 to 1.20 to 1.80.

Further, as described above, of the vehicle exterior decoration portion 67 and the vehicle interior decoration portion 68, the portion including the tip of at least one decoration portion (both decoration portions 67 and 68 in this embodiment 1) is the third polymer. It is formed of a material (a polymer material having a foaming ratio smaller than that of the foamed polymer material forming the run channel body 50 or not foamed).
That is, in the first embodiment, on the surface from the front end portion of the vehicle exterior decoration portion 67 to the connection portion 56 outside the vehicle, and on the surface from the front end portion of the vehicle interior decoration portion 68 to the connection portion 57 inside the vehicle, A vehicle outer side coating layer 67a and a vehicle inner side coating layer 68a formed of a third polymer material covering both surfaces are provided.
For this reason, it becomes easier to form the vehicle exterior decoration part 67 and the vehicle interior decoration part 68 in a desired shape as compared with the case where the entire interior decoration part 68 is formed from a foamed polymer material.
In addition, since the vehicle exterior decoration portion 67 and the vehicle interior decoration portion 68 have high rigidity due to the vehicle exterior coating layer 67a and the vehicle interior coating layer 68a, unexpected deformation of the vehicle exterior decoration portion 67 and the vehicle interior decoration portion 68 is prevented. Can be suppressed.

  Further, the second polymer material forming the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 and the third polymer material forming the vehicle outer side coating layer 67a and the vehicle inner side coating layer 68a are made of the same polymer material. As a result, material management is facilitated, which is effective in reducing manufacturing costs.

In the first embodiment, as described above, the foamed polymer material, the second polymer material, and the third polymer material are formed on the surfaces of the vehicle exterior seal lip 62 and the vehicle interior seal lip 65 that contact the window plate 15, respectively. Both the low friction layers 63 and 66 on the vehicle outer side and the vehicle inner side made of a low friction material having a smaller dynamic friction coefficient with respect to the window plate 15 and the door panel 12 than the polymer material are formed.
And the frictional force at the time of raising / lowering the window board 15 can be reduced by the low friction layers 63 and 66 on the vehicle outer side and the vehicle inner side. As a result, the raising / lowering operation of the window plate 15 is smoothed.

  In the first embodiment, the second or third polymer material has higher rigidity than the foamed polymer material forming the run channel main body 50, and forms layers and protrusions along the longitudinal direction of the run channel main body 50. doing. Thereby, rigidity (difficult to bend, linearity) in the longitudinal direction of the glass run channel assembly 30 can be ensured, and transportation work, attachment work to a window frame, and the like are facilitated.

Further, the glass run channel assembly having a desired shape and length is obtained by joining the first to fourth glass run channels 31 to 34 together by the first to third connecting bodies 41 to 43. 30 is easily obtained.
Moreover, it is also possible to firmly join each end face by injection molding the first to third connecting bodies 41 to 43 between the opposing end faces of the first to fourth glass run channels 31 to 34. It is.

In addition, when the first to third connecting bodies 41 to 43 are connected to the opposing end surfaces of the first to fourth glass run channels 31 to 34 by injection molding, the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 are used. Is made of the second polymer material and has high rigidity, so that unexpected deformation of the vehicle outer side holding lip 60 and the vehicle inner side holding lip 61 can be suppressed.
That is, two glass run channels of the first to fourth glass run channels 31 to 34, for example, the end portions of the first glass run channel 31 and the second glass run channel 32 are placed in an injection mold. After the thermoplastic resin material is injected into the mold and the first connection body 41 is formed, the vehicle outer side holding lip 60 and the vehicle at the ends of the first and second glass run channels 31 and 32 are formed. A problem that the inner holding lip 61 is deformed unexpectedly due to the material flow pressure of the thermoplastic polymer material can be suppressed. As a result, the opposing end surfaces of the first and second glass run channels 31, 32 can be satisfactorily connected via the first connector 41.

Next, a second embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 4, in the second embodiment, the case where the window frame is formed by a sash type window frame sash is illustrated, and the window frame sash 220 constituting the window frame is a vehicle opening / closing door. It is formed separately from the door panel (front door, rear door, etc.) and is fixed to the door panel. The window frame sash 220 is formed with a run mounting recess 225.

  A glass run channel 231 which is one of a plurality of glass run channels constituting the glass run channel assembly has a run channel main body 250 as a main part thereof, as in the first embodiment. , A base portion 251 provided at a position facing an end face of a window plate (not shown), a side wall portion 252 on the outside of the vehicle, a side wall portion 253 on the inside of the vehicle, and top portions of the opening side tips of these side wall portions 252 and 253. The vehicle has a vehicle outer side seal lip 262 and a vehicle inner side seal lip 265 that protrude from the connecting portions 256 and 257 toward the base portion 251 and can be elastically contacted with both surfaces of the window plate.

Also in the second embodiment, as in the first embodiment, at least a part (the whole holding lip in FIG. 4) including the front end portions of the vehicle outer side holding lip 260 and the vehicle inner side holding lip 261 is the run channel main body. The second polymer material is the same as or compatible with the foamed polymer material forming 250 and has a lower expansion ratio than the foamed polymer material or is not foamed.
Further, the run channel main body 250 is formed so as to protrude from the top connecting portions 256 and 257 at the opening end of the both side walls 252 and 253 toward the opposite side of the seal lips 262 and 265 on the vehicle outer side and the vehicle inner side. The vehicle exterior decoration portion 267 and the vehicle interior decoration portion 268 are provided.

Further, in the run channel main body 250, as in the first embodiment, the surface from the front end portion of the vehicle exterior decoration portion 267 to the connection portion 256 on the vehicle exterior side, and the connection portion 257 on the vehicle interior side from the front end portion of the vehicle interior decoration portion 268. A vehicle outer side coating layer 267a and a vehicle inner side coating layer 268a are formed on the surfaces up to and including these surfaces, respectively.
The vehicle exterior covering layer 267a of the vehicle exterior decoration portion 267 and the vehicle interior coating layer 268a of the vehicle interior decoration portion 268 have a third expansion ratio smaller than that of the foamed polymer material forming the run channel body 250 or not foamed. It is made of a polymer material.
Also in the second embodiment, the outer side covering layer 267a and the inner side covering layer 268a, the outer side decorative part 267 and the inner side decorative part 268 are formed so as to be folded back on the back surface.

  Further, as in the first embodiment, it is desirable in material management and the like that the second polymer material and the third polymer material are the same polymer material.

Also in the second embodiment, the respective surfaces of the seal lips 262 and 265 on both the vehicle outer side and the vehicle inner side which are in contact with the window plates are made of the same material as or compatible with the run channel main body 250 and are made of a foamed polymer material. (Run channel main body 250), the second polymer material (the vehicle outer side holding lip 260 and the vehicle inner side holding lip 261) and the third polymer material (the vehicle outer side coating layer 267a and the vehicle inner side coating layer 268a) than the window plate and the door panel. The low friction layers 263 and 266 on the vehicle outer side and the vehicle inner side made of a low friction material having a small dynamic friction coefficient are formed by coextrusion simultaneously with the extrusion of the run channel main body 250.
Further, it is desirable that the low friction layers 263 and 266 on the vehicle outer side and the vehicle inner side are continuous with the coating layers 267a and 268a on the vehicle outer side and the vehicle inner side.
Further, the low friction layers 252 a, 253 a, and 251 a made of a low friction material having a smaller dynamic friction coefficient than the run channel main body 250 are formed on the opposing surfaces of the side wall portions 252 and 253 and the bottom surface of the base portion 251. It is formed by coextrusion simultaneously with extrusion.
Further, a high friction layer 269 made of a non-foamed (solid) material having a static friction coefficient larger than that of the run channel main body 250 is in contact with the bottom surface of the run mounting recess 225 on the bottom outer surface of the base portion 251. It is formed by coextrusion simultaneously with extrusion.

The run channel body 250 is formed from a foamed polymer material including a thermoplastic elastomer material and a thermally expandable capsule in the same manner as in the first embodiment, and the countless foam formed by the foam expansion of the thermally expandable capsule. Has a cell.
Since other configurations of the second embodiment are configured in the same manner as the first embodiment, the description thereof is omitted.
Therefore, also in this Example 2, there exists an effect similar to Example 1. FIG.

In addition, this invention is not limited to the said Example 1 and 2, In the range which does not deviate from the summary of this invention, it can also be implemented with a various form. For example, in the first embodiment (embodiment 2), the case where the entirety of the vehicle outer side holding lip 60 (260) and the vehicle inner side holding lip 61 (261) is formed of the second polymer material is exemplified. As shown in FIG. 5, a layered reinforcing layer 60 ′ a is formed of the second polymer material on the tip side portion of about ½ of the length of the vehicle outer side holding lip 60 ′ (260 ′), and the vehicle outer side is formed. The retaining lip 60 '(260') may be reinforced. The same applies to the inside holding lip.
Further, as shown in FIG. 6, the entire front end side portion of about ½ of the length of the vehicle outer side holding lip 60 ′ (260 ′) is formed of the second polymer material, and the reinforcing portion 60′b (260′b ) May be formed to reinforce the exterior retaining lip 60 '(260'). The same applies to the inside holding lip.

10 Front door (vehicle door)
15 Window plate 20 Window frame 31 First glass run channel (glass run channel)
32 Second glass run channel (glass run channel)
33 Third glass run channel (glass run channel)
34 Fourth glass run channel (glass run channel)
41 1st connection body (connection body)
42 Second connection body (connection body)
43 3rd connection body (connection body)
50 Run channel main body 51 Base portion 52 Side wall portion on the outside of the vehicle 53 Side wall portion on the inside of the vehicle 60 Retaining lip on the outside of the vehicle 61 Retaining lip on the inside of the vehicle 62 Sealing lip on the inside of the vehicle 65 Sealing lip on the inside of the vehicle 67 Car interior decoration 68a Car interior covering layer

Claims (6)

A glass run channel made of a polymer material that is long and is attached to a run mounting portion of a window frame of a vehicle door and guides the lifting and lowering of a window plate,
The run channel main body forming the main part of the glass run channel has a base portion provided at a position facing an end face of the window plate,
Both side walls on the vehicle inner side and the vehicle outer side rising from both ends in the width direction of the base part,
Both the vehicle inner side and the vehicle outer seal lips that respectively protrude toward the base portion from the opening side front ends of the both side wall portions and can be elastically contacted with both surfaces of the window plate,
On the outer surfaces of the both side walls on the vehicle inner side and the vehicle outer side, both holding lips on the vehicle inner side and the vehicle outer side that protrude in a direction away from the both side wall portions and can be engaged with the run mounting portion of the window frame are formed. ,
At least one portion of the base portion and the side wall portions is formed of a foamed foamed polymer material,
At least a part including the front end portions of both the inside and outside holding lips of the vehicle is formed of a second polymer material having a lower expansion ratio than the foamed polymer material or not foamed ,
Both the vehicle interior and vehicle exterior decoration portions projecting from the opening side ends of both side walls on the vehicle interior and vehicle exterior toward the opposite sides of the seal lips on the vehicle interior and vehicle exterior,
The third polymer in which the portion including the tip of at least one of the decorative portions on the vehicle inner side and the vehicle outer side has a lower expansion ratio than the foamed polymer material forming the run channel main body or is not foamed. Glass run channel characterized by being made of material . The glass run channel according to claim 1,
A run channel body made of a foamed polymer material has a foaming ratio of 1.20 to 1.80, and is a glass run channel. The glass run channel according to claim 1 or 2,
A glass run channel characterized in that at least one of the holding lips inside and outside the vehicle is entirely made of a second polymer material. The glass run channel according to any one of claims 1 to 3 ,
The glass run channel, wherein the second polymer material and the third polymer material are the same polymer material. The glass run channel according to any one of claims 1 to 4 ,
The portions of both the inner and outer seal lips that come into contact with the window plate are made of a foamed polymer material, a second polymer material, and a low friction material having a smaller coefficient of friction with respect to the window plate and the door panel than the third polymer material. A glass run channel in which low friction layers on both the inside and outside of the vehicle are formed. At least two glass run channels according to any one of claims 1 to 5 are used,
The glass run channel assembly is constructed by joining the glass run channels together in a continuous manner by a connecting body.

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