JP2007083903A - Glass run for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run for an automobile capable of being positioned relative to a flange and preventing surface sink on an appearance surface from occurring. <P>SOLUTION: The glass run for the automobile is equipped with a bottom wall 30 and both side walls 10, 20 forming a groove 31 having an approximately U shape cross section guiding door glass 200, both lips 11, 21 which extend from the both side walls 10, 20 folded to the inside, respectively, and slidingly contact with the door glass 200, and both moldings 12, 22 which extend from the side walls 10, 20 folded to the outside, respectively. The glass run 1 for the automobile is mounted to a door sash 300 by a pair of flanges 301, 302 provided on the door sash 300 in flange storage parts 13, 23 formed of the opposing side walls 10, 20 and the moldings 12, 22, respectively. The glass run for the automobile has projections 16, 26 which are projected from the side walls 10, 20 and abut to tips of the flanges 301, 302 in inserting at a position away from bottom surfaces 15, 25 in the flange storage parts 13, 23. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a glass run for an automobile that is fitted to a door sash of an automobile and guides a door glass that moves up and down.

Conventionally, as shown in FIG. 5, a glass run 100 is fitted to a door sash 300 of a front door 400 and a rear door 500 of an automobile to guide a door glass 200 that moves up and down.
The molding part 100a of the glass run 100 is attached to the corner part X of the door sash 300. FIG. 6 is a cross-sectional view showing a mold forming portion 100a of the glass run 100 attached to the corner portion X. As shown in FIG.

The mold forming portion 100a of the glass run 100 has a bottom wall portion 30 and both side wall portions of the vehicle outer side wall portion 10 and the vehicle inner side wall portion 20 extending from both ends of the bottom wall portion 30, and thereby a groove portion having a substantially U-shaped cross section. 31 is formed. The door glass 200 is guided to the groove 31.
Further, a vehicle outer lip portion 11 that bends and extends from the front end of the vehicle outer wall portion 10 to the inside of the groove portion 31, and a vehicle inner lip portion 21 that extends from the front end of the vehicle inner side wall portion 20 to be bent to the inside of the groove portion 31. Both lip portions are formed so as to be in sliding contact with the door glass 200.
Further, an outer-side molding part 12 that extends and bends from the front end of the outer-side wall part 10 to the outer side of the groove part 31, and an inner-side molding part 22 that bends and extends from the front-end part of the inner-side wall part 20 to the outer side of the groove part 31. Both molding parts are formed respectively. A flange housing portion 13 is formed between the vehicle outer side wall portion 10 and the vehicle outer side molding portion 12, and a flange housing portion 23 is formed between the vehicle inner side wall portion 20 and the vehicle inner side molding portion 22.

On the other hand, the door sash 300 is provided with a pair of flanges 301, 302. The flange 301 is inserted from the opening 14 of the flange housing part 13 toward the bottom surface 15, and the flange 302 is inserted into the opening 24 of the flange housing part 23. The glass run 100 is attached to the door sash 300 by being inserted toward the bottom surface 25.
Here, in order to position the glass run 100 with respect to the flanges 301 and 302, thick portions 18 and 28 that are thicker than the surroundings are formed on the bottom surfaces 15 and 25 of the flange housing portions 13 and 23, respectively. The positions of the flanges 301 and 302 are abutted to be regulated.

In addition, as a structure in which the flange of the door sash is inserted into the flange housing portion of the glass run, Patent Document 1 discloses that the front end of the molding portion is provided by providing a bridging portion in the flange housing portion and abutting and bending the front end of the flange. An invention is described in which the opening is prevented.
JP 2002-205550 A

By the way, when manufacturing the mold forming part 100a of the glass run 100 as shown in FIG. 6, although it will mold using a metal mold | die, since the thick parts 18 and 28 are formed, The following problems occur.
That is, when the molding material in the mold is cooled and solidified, the thin part is solidified first, so that the thick part is pulled by the thin part and a so-called sink occurs that the thick part is indented. It ends up. For this reason, sink marks are generated on the outer appearance surfaces of the molding parts 12 and 22 corresponding to the thick parts 18 and 28 and the appearance is poor. In particular, the influence is great in the case of a resin molded product using a thermoplastic elastomer or the like.

  On the other hand, in the invention described in Patent Document 1, although the bottom surface of the flange accommodating portion is not thick, the bridging portion provided in the flange accommodating portion is bent when the tip of the flange comes into contact. Since it is not intended to position the glass run with respect to the flange, it cannot be applied to a molded part as shown in FIG.

  SUMMARY OF THE INVENTION Accordingly, the present invention is to solve the above-described conventional problems, and an automobile capable of positioning with respect to a flange and preventing the appearance of sink marks in a molded part attached to a corner part of a door sash. A glass run is provided.

  In order to solve the above-mentioned conventional problems, the glass run for an automobile according to the first aspect of the present invention includes a bottom wall (30) that forms a groove (31) having a substantially U-shaped cross section for guiding the door glass (200). Both side wall portions (10, 20) extending from both ends of the bottom wall portion (30) and both lip portions which are bent inward from the both side wall portions (10, 20) and extend in sliding contact with the door glass (200). (11, 21) and both molding parts (12, 22) extending outwardly from the both side wall parts (10, 20), respectively, and opposing side wall parts (10, 20) and molding parts (12 , 22) and a pair of flanges (301) provided on the door sash (300) from the openings (14, 24) toward the bottom surface (15, 25). , 302) In the automotive glass run (1) attached to the door sash (300), the molded part (1a) attached to the corner part (X) of the door sash (300) has the inside of the flange accommodating part (13, 23). Protrusions (16, 26) that protrude from the side wall portions (10, 20) and come into contact with the tips of the flanges (301, 302) at the time of insertion are provided at positions away from the bottom surfaces (15, 25). It is characterized by being.

  The invention according to claim 2 is the invention according to claim 1, wherein a plurality of the protrusions (16, 26) are provided at intervals along the longitudinal direction of the mold forming portion (2a). It is characterized by that.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the protrusions (17, 27) extend from the side wall portions (10, 20) to the flange accommodating portions (13, 23). Projecting obliquely in the direction of the opening (14, 24).

  The symbols in parentheses indicate the best mode for carrying out the invention and the corresponding elements or the corresponding matters described in the drawings.

According to the first aspect of the present invention, since the protrusion that protrudes from the side wall portion and comes into contact with the front end of the flange at the time of insertion is provided in the flange accommodating portion formed in the molded portion of the glass run, the front end of the flange The glass run can be positioned with respect to the flange by restricting the position by applying to the protrusion.
Further, since the protrusion is provided at a position away from the bottom surface in the flange housing portion, the bottom surface of the flange housing portion does not become thick. Therefore, it is possible to prevent the appearance of the molding portion from being deteriorated due to sink marks.

  According to the second aspect of the invention, in addition to the function and effect of the first aspect of the invention, a plurality of protrusions are provided at intervals along the longitudinal direction of the molded part. Even if variations occur in the shapes of the flange and the molded part in the part X, the tip of the flange can be properly brought into contact with the protrusion.

  According to the invention described in claim 3, in addition to the function and effect of the invention described in claim 1 or 2, the protrusion protrudes obliquely from the side wall portion toward the opening of the flange accommodating portion. A concave portion is formed between the side wall portion and the projection, and the flange can be brought into contact with the concave portion so as to insert the tip of the flange. Therefore, the tip of the flange does not come off from the protrusion, and the glass run can be reliably positioned with respect to the flange.

  Next, with reference to FIG.1 and FIG.2, the glass run which concerns on Embodiment 1 of this invention is demonstrated. FIG. 1 is a perspective view showing a glass run 1 according to Embodiment 1, and FIG. 2 is an AA enlarged sectional view of FIG.

The glass run 1 according to the first embodiment is fitted to the door sash 300 of the front door 400 and the rear door 500 of the automobile and guides the door glass 200 that moves up and down, as in the conventional example shown in FIG.
FIG. 1 shows a portion of the glass run 1 that is attached to the corner portion X of the door sash 300. Further, in FIG. 1, two triangle marks which are divided into two parts in black and white are shown. The black side shows the mold forming part 1a, and the white side shows the extrusion forming parts 1b and 1c.
Hereinafter, the molded part 1a will be described.

As shown in FIG. 1, the mold forming portion 1 a of the glass run 1 has a bottom wall portion 30, and both side wall portions of the vehicle outer side wall portion 10 and the vehicle interior side wall portion 20 extending from both ends of the bottom wall portion 30, thereby A groove portion 31 having a substantially U-shaped cross section is formed. The door glass 200 is guided to the groove 31.
Further, a vehicle outer lip portion 11 that bends and extends from the front end of the vehicle outer wall portion 10 to the inside of the groove portion 31, and a vehicle inner lip portion 21 that extends from the front end of the vehicle inner side wall portion 20 to be bent to the inside of the groove portion 31. Both lip portions are formed so as to be in sliding contact with the door glass 200.
Further, an outer-side molding part 12 that extends and bends from the front end of the outer-side wall part 10 to the outer side of the groove part 31, and an inner-side molding part 22 that bends and extends from the front-end part of the inner-side wall part 20 to the outer side of the groove part 31. Both molding parts are formed respectively. A flange housing portion 13 is formed between the vehicle outer side wall portion 10 and the vehicle outer side molding portion 12, and a flange housing portion 23 is formed between the vehicle inner side wall portion 20 and the vehicle inner side molding portion 22.

  On the other hand, the door sash 300 is provided with a pair of flanges 301, 302. The flange 301 is inserted from the opening 14 of the flange housing part 13 toward the bottom surface 15, and the flange 302 is inserted into the opening 24 of the flange housing part 23. The glass run 1 is attached to the door sash 300 by being inserted toward the bottom surface 25.

Here, protrusions 16 and 26 are provided at positions away from the bottom surfaces 15 and 25 in the flange accommodating portions 13 and 23 of the mold forming portion 1a. The protrusion 16 protrudes outward (in the direction of the vehicle outer molding portion 12) from the vehicle outer side wall portion 10, and the protrusion 26 protrudes outward (in the direction of the vehicle inner molding portion 22) from the vehicle inner wall portion 20.
Since the protrusions 16 and 26 are located away from the bottom surfaces 15 and 25, the bottom surfaces 15 and 25 and the protrusions 16 and 26 are not integrated to increase the thickness. It is almost the same as the thickness of the lip parts 11 and 21 and the molding parts 12 and 22.

Further, the protrusions 16 and 26 have a substantially triangular shape gradually narrowing from the root portion connected to the side wall portions 10 and 20 toward the tip, and the contact surfaces (upper surfaces) with the tips of the flanges 301 and 302 are formed. The flanges 301 and 302 are substantially perpendicular to the direction of entry.
Of course, the shape of the protrusions 16 and 26 is not limited to this, but such a substantially triangular shape is preferable because deformation at the time of contact with the flanges 301 and 302 can be prevented.

When the flanges 301 and 302 are inserted, the tips of the flanges 301 and 302 are brought into contact with the protrusions 16 and 26, whereby the positional relationship between the mold forming portion 1a and the flanges 301 and 302 is determined and regulated.
Note that it is preferable that the tips of the flanges 301 and 302 are in contact with the root portions of the protrusions 16 and 26 because the positions of the protrusions 16 and 26 can be prevented and the positions thereof can be reliably regulated.

  Further, in the glass run 1, as shown in FIG. 1, the protrusions 16 and 26 are provided over the entire length in the longitudinal direction of the mold forming portion 1a. However, it is not always necessary to provide the entire length, and the position of the mold forming portion 1a can be regulated. It only has to be long.

According to the glass run 1 according to the first embodiment, it protrudes from the side wall portions 10 and 20 into the flange accommodating portions 13 and 23 formed in the mold forming portion 1a of the glass run 1 and contacts the leading ends of the flanges 301 and 302 when inserted. Since the projections 16 and 26 that come into contact with each other are provided, the glass run 1 can be positioned with respect to the flanges 301 and 302 by restricting the position of the flanges 301 and 302 by applying the tips of the flanges 301 and 302 to the projections 16 and 26.
Further, since the protrusions 16 and 26 are provided at positions away from the bottom surfaces 15 and 25 in the flange housing portions 13 and 23, the bottom surfaces 15 and 25 of the flange housing portions 13 and 23 do not become thick. Therefore, it is possible to prevent the appearance of the molding parts 12 and 22 from being sinked and deteriorating in appearance.

  Next, with reference to FIG. 3, the glass run which concerns on Embodiment 2 of this invention is demonstrated. FIG. 3 is a perspective view showing the glass run 2 according to the second embodiment. 3 is the same as FIG. 2 which is an AA enlarged sectional view of FIG.

The glass run 2 according to the second embodiment has substantially the same configuration as the glass run 1 according to the first embodiment, but the formation positions of the protrusions 16 and 26 are different.
That is, in the glass run 1, as shown in FIG. 1, the protrusions 16 and 26 are provided over the entire length in the longitudinal direction of the mold forming portion 1 a, whereas in the glass run 2, as shown in FIG. Three protrusions 16 and 26 are provided at intervals along the longitudinal direction.
By providing the three protrusions 16 and 26 at intervals as described above, the protrusions 16 and 26 can be brought into contact with each other to some extent according to the bending state of the corner portions X of the flanges 301 and 302.
The number of protrusions 16 and 26 is not limited to three, and a plurality of protrusions 16 and 26 may be provided by adjusting as appropriate.

  According to the glass run 2 according to the second embodiment, since the three protrusions 16 and 26 are provided at intervals along the longitudinal direction of the mold forming portion 2a, the flanges 301 and 302 in the corner portion X and the mold forming portion are provided. Even if variations occur in the shape of 2a, the tips of the flanges 301 and 302 can be brought into contact with the protrusions 16 and 26 appropriately.

  Next, with reference to FIG. 4, the glass run which concerns on Embodiment 3 of this invention is demonstrated. FIG. 4 is a cross-sectional view showing the glass run 3 according to the third embodiment, and corresponds to an AA enlarged cross-sectional view of FIG. 1 and a BB enlarged cross-sectional view of FIG.

The glass run 3 according to the third embodiment has substantially the same configuration as the glass run 1 according to the first embodiment, but the shape of the protrusions provided in the flange accommodating portions 13 and 23 is different.
In the glass run 1, as shown in FIG. 2, the protrusions 16 and 26 are formed so that the contact surfaces (upper surfaces) with the tips of the flanges 301 and 302 are substantially perpendicular to the entry direction of the flanges 301 and 302. Has been.

On the other hand, as shown in FIG. 4, in the glass run 3, the protrusions 17 and 27 protrude obliquely from the side wall portions 10 and 20 toward the openings 14 and 24 of the flange housing portions 13 and 23. Therefore, it is oblique to the approach direction of the flanges 301 and 302.
As a result, concave portions are formed between the vehicle outer wall portion 10 and the protrusion 17 and between the vehicle inner wall portion 20 and the protrusion 27, respectively.
The projections 17 and 27 in the glass run 3 are gradually narrowed from the root portions connected to the side wall portions 10 and 20 toward the tip, similarly to the projections 16 and 26 in the glass run 1.

  According to the glass run 3 according to the third embodiment, since the protrusions 17 and 27 project obliquely from the side wall parts 10 and 20 in the direction of the openings 14 and 24 of the flange housing parts 13 and 23, the side wall parts 10 and 20 and the protrusions A concave portion is formed between 17 and 27 and can be brought into contact with the concave portion so as to insert the tips of the flanges 301 and 302. Accordingly, the tips of the flanges 301 and 302 are not detached from the protrusions 17 and 27, and the glass run 3 can be reliably positioned with respect to the flanges 301 and 302.

  In the first to third embodiments, the protrusions are provided on both the vehicle outer wall 10 and the vehicle inner wall 20, but depending on the shape of the glass run or the flange, the protrusion may be provided only on one of them.

It is a perspective view which shows the glass run which concerns on Embodiment 1 of this invention. It is an AA expanded sectional view of FIG. 10 is a perspective view showing a glass run according to Embodiment 2. FIG. It is sectional drawing which shows the glass run which concerns on Embodiment 3. FIG. It is a front view which shows the door of a motor vehicle. It is sectional drawing which shows the glass run which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Glass run 1a Molding part 1b Extrusion part 1c Extrusion part 2 Glass run 2a Molding part 2b Extrusion part 2c Extrusion part 3 Glass run 3a Molding part 10 Car outer wall part 11 Car outer lip part 12 Car outer molding part 13 Flange receiving portion 14 Opening portion 15 Bottom surface 16 Protrusion 17 Protrusion 18 Thick portion 20 Car interior side wall portion 21 Car interior lip portion 22 Car interior rim portion 23 Flange housing portion 24 Opening portion 25 Bottom surface 26 Protrusion 27 Protrusion 28 Thick portion 30 Bottom wall Part 31 Groove part 100 Glass run 100a Molding part 200 Door glass 300 Door sash 301 Flange 302 Flange 400 Front door 500 Rear door

Claims (3)

A bottom wall portion that forms a substantially U-shaped groove for guiding the door glass, both side wall portions that extend from both ends of the bottom wall portion, bend inward from the both side wall portions, and extend in sliding contact with the door glass. Both lip portions and both molding portions extending outwardly from the both side wall portions are provided, and a flange accommodating portion formed by the opposite side wall portion and the molding portion is provided with a door from the opening portion toward the bottom surface. In an automotive glass run that is attached to a door sash by inserting a pair of flanges provided on the sash,
In the mold forming part attached to the corner part of the door sash, a protrusion that protrudes from the side wall part and comes into contact with the front end of the flange when inserted is provided at a position away from the bottom surface in the flange accommodating part. A glass run for automobiles.   2. The glass run for an automobile according to claim 1, wherein a plurality of the protrusions are provided at intervals along the longitudinal direction of the mold forming portion. The glass run for an automobile according to claim 1, wherein the protrusion protrudes obliquely from the side wall portion toward the opening of the flange housing portion.

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