JP5419487B2 - Molding part of glass run - Google Patents

Description

  The present invention relates to a glass run attached to a door sash of an automobile, and more particularly to a mold forming part attached to a corner of the sash.

  When the window glass 2 is assembled to the front door 1 of the automobile as shown in FIG. 1, the window glass 2 is inserted into the door panel 3 from below and pushed in while being turned. Is formed along the shape of the sash 4, the corner a of the window glass 2 interferes with the sash 4 as it is, and the window glass 2 cannot be incorporated.

  Conventionally, as a countermeasure, a gap is provided at the front end of the belt line in the inner panel of the door panel 3 so that the window glass 2 is inserted without being inclined so that the corner a does not interfere with the sash 4 or the window glass 2 As shown by the dotted line in FIG. 2, the corner a is cut into an arc shape or a taper shape so as not to interfere with the sash 4. However, providing the gap in a part of the former inner panel includes the repaired portion. The number of processes increases, resulting in high costs.

  When the corner a of the latter window glass 2 is cut into an arc shape or a taper shape, in order to seal the corner of the window glass 2 when the window glass 2 is closed, as shown in FIGS. The molded part 6 must be formed by extending the side walls 6b and 6c long. In the figure, reference numerals 6d and 6e denote seal lips that elastically contact the window glass when the window glass is closed to seal the window glass. In addition, the triangle mark shown in FIG. 2 shows the molded part 6 on the side of the blacked-out part and the extrusion part 5 on the side of the non-painted part. The same applies to the following drawings.

  The glass run extrusion molding part 5 and the molding part 6 described above are generally molded from a rubber material such as EPDM or a thermoplastic elastomer, but as shown in FIG. 3, the molding part 6 with the side walls 6b and 6c extended is It is difficult to ensure the required rigidity by increasing the size.

  As for the extrusion molding part 5, as shown in FIG. 4, the side walls 5b and 5c are supported by the sash 4 and the garnish 7, but most of the side walls 6b and 6c of the molding part 6 are not supported. Without the necessary rigidity, it is easy to fall to the left and right, and when the window glass is closed, the side wall, in particular, the vehicle outer side wall 6b is wound as shown by the one-dot chain line in FIG. As shown by the two-dot chain line, a problem of opening occurs.

  A glass run having a thick outer lip is known (Patent Document 1). If the thickness of the side walls 6b and 6c of the molded part 6 shown in FIG. 3 is also increased, the rigidity of the side walls increases. Although the above-mentioned problems can be solved, if the wall thickness is increased, “sink”, that is, dents are caused by shrinkage caused by cooling after molding, the appearance is impaired, and if the wall thickness is increased, the flash surface is increased. Therefore, the appearance is poor and abnormal noise such as wind noise is easily generated when the vehicle is running.

  A glass run is also known in which a mandrel is inserted for shape retention, or an insert member 9 made of hard resin is attached to the glass run 8 as shown in FIG. 5 (Patent Document 2). As shown in the figure, a sub glass run 12 is formed on the glass run 11 by molding, and reinforcing ribs are respectively formed on the outside of the vehicle runner side wall 11b of the glass run and on the inside of the lip wall portion 12b of the sub glass run 12 inside the car. It is also known that a plurality of reinforcing ribs 15a and 15b are formed on the inner side of the shielding lip 14b of the sub glass run 12 and the lip-like wall portion 12c on the outside of the vehicle in the direction intersecting the moving direction of the window glass 16, respectively. (Patent Document 3).

Microfilm of Japanese Utility Model No. Sho 63-12897 (Japanese Utility Model Application Publication No. 2-48424) JP-A-9-209648 JP-A-2005-178703

  Inserting the core metal into the glass run as described above or attaching the insert member 9 as shown in FIG. 5 is effective for preventing the side wall from collapsing, but the former is inserted into the glass run. The surface is prone to irregularities due to the cored bar, and there is a problem of deteriorating the appearance of the product. The attachment of the latter insert member 9 increases the rigidity of the glass run and makes it difficult to fit into the sash.

  Further, the glass run as shown in FIG. 6 has the window glass 16 half-opened at the lower end of the inclined window frame portion, and even when the window glass 16 is displaced to the solid line position from the one-dot chain line position in FIG. As shown in the figure, the ribs are not provided until reaching or near the bottom wall 11a of the glass run 11, so that the inside of the side wall is prevented from falling down. Therefore, it is necessary to provide the shielding lips 14a and 14b and sandwich the flange of the window frame portion 17.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a glass run mold-forming part capable of preventing a sidewall from collapsing without providing a shielding lip.

The invention according to claim 1 is a mold forming portion provided at a location corresponding to a cut corner of the upper edge of the window glass in a glass run attached to a sash of an automobile door, the bottom wall, and the bottom wall A vehicle outer side wall and a vehicle inner side wall that are integrally formed on both sides of the vehicle, and a seal lip that extends inward from the tip of each side wall and elastically contacts the window glass when the window glass is closed to seal between the window glass the consists legs glazing opposite direction Ru is projected in the moving direction of opening and closing the bottom wall than the side wall, only the leg portion is fitted into the sash, moreover legs on the extension of the vehicle exterior side wall A vehicle outer wall portion that extends to the vehicle outer wall portion, a vehicle inner wall portion that projects from the vehicle outer wall portion, and both side wall portions that are integrally formed on one side and extend from the one side, and the bottom wall and made of the first rib abutting or on the other side wall portion And wherein the door.

The invention according to claim 2 is characterized in that, in the invention according to claim 1 , the first rib is provided connected to the bottom wall and / or the other wall portion.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein at least one of the both side walls of the vehicle outer side wall and the vehicle inner side wall extends toward the glass run opening from the bottom wall or the vicinity thereof. A second rib to be provided is provided.

According to the first aspect of the present invention, the mold forming portion provided at the portion corresponding to the cut corner of the upper edge of the window glass is provided with a leg portion, and only the leg portion is fitted into the sash and supported. by the, one that has become so that can seal between the window glass corners cut when closing the window glass, lengthen the molded part side wall for sealing between the window glass corners cut However, the side wall is less likely to bend and the side wall is less likely to bend because the side wall is not required to be elongated due to the provision of the leg portions. Further , since the distance between the vehicle outer side wall portion and the vehicle inner side wall portion of the leg portion is held by the first rib, it is possible to perform the attachment by fitting into the sash, and the first rib is connected to the bottom wall and / or The effect of reinforcing the wall portion can be increased by contacting the other wall portion.

As in the invention according to claim 2 , the first ribs connect the both wall portions, whereby the strength of the leg portions is increased and the attachment to the sash can be performed reliably. Also, the increase in weight due to the ribs provided for reinforcement is small.

According to the invention according to claim 3 , the glass run side wall is reinforced by the second rib and has an appropriate rigidity so that it is not caught when the window glass is closed or opened by vibration of the window glass when the vehicle is running. Further, the second rib has an effect such that the increase in weight can be reduced as compared with the case where the second rib is formed with a certain length along the corner as in the insert member 9 shown in FIG.

The figure which shows the aspect when a window glass is integrated in the front door of a motor vehicle. The enlarged view of the a section shown in FIG. Sectional drawing of the conventional shaping | molding part in the AA line of FIG. Sectional drawing of the extrusion molding part engage | inserted by the sash. Sectional drawing of the conventional glass run which attached the insert member. Sectional drawing of another example of the conventional glass run. The perspective view of the shaping | molding part concerning this invention which connected extrusion molding parts. BB sectional drawing of FIG. Sectional drawing of another aspect of the shaping | molding part concerning this invention. Sectional drawing of another aspect of the shaping | molding part concerning this invention.

  Hereinafter, a glass run mold part of an embodiment of the present invention will be described with reference to the drawings. In the figure, the same reference numerals are given to the same structural parts as the mold forming parts shown in FIGS.

  FIG. 7 shows a portion corresponding to a cut corner of the upper edge of the window glass when the window glass 2 is closed, and a mold forming portion 21 that is fitted into the corner of the sash 4 and connects the extrusion forming portions 5 to each other. FIG. 8 shows a cross section taken along line B-B of FIG. 7. The mold forming portion 21 includes a bottom wall 21 a, a vehicle outer side wall 21 b and a vehicle inner side wall 21 c on both sides of the bottom wall, and both side walls. Sealing lips 21d and 21e that extend from the tips of 21b and 21c toward the bottom wall 21a, elastically contact the window glass 2 when the window glass is closed, and seal between the window glass 2, and legs fitted into the sash 4 22, the whole is formed of a rubber material such as EPDM or a thermoplastic elastomer, and the vehicle outer side wall 21 b and the vehicle inner side wall 21 c are respectively sealed lips 21 d and 21 e, that is, glass laths, from the bottom wall 21 a. The second ribs 23 and 24 projecting toward the opening side and facing the opposite side walls face each other, and a plurality of (five places in FIG. 7) along the corner, each side wall 21b at an appropriate interval. And 21c.

  In the illustrated example, the second ribs 23 and 24 are integrally formed on the side walls 21b and 21c, respectively, but may not be provided. When the second ribs 23 and 24 are provided, the ribs may be integrally formed only on one side wall. When the ribs are formed only on one side wall, the ribs are preferably formed on the outer side wall 21b.

  The second ribs 23 and 24 are also preferably formed by molding at the same time as the molding part 21 is molded, and are formed integrally with the side walls 21b and 21c, but are formed in advance separately from the molding part 21. In this case, it can be installed in a mold when the mold forming portion 21 is formed, and can be insert-molded. After the mold forming portion 21 is formed, it is attached to the side walls 21b and 21c, and preferably attached with an adhesive. You can also. The molded part 21 is formed of a rubber material such as EPDM or a thermoplastic elastomer as in the conventional molded part 6, but when the rib is formed in advance and attached by insert molding or adhesive as described above. Alternatively, the second ribs 23 and 24 can be formed using a material different from that of the molded part 21, for example, a hard resin.

  The ribs 23 and 24 are also formed wider than those shown in the drawing, and the ribs 23 and 24 are attached to each other, or the ribs 23 or 24 formed on one side wall are formed wider and the other The side walls 21b and 21c may be connected by ribs, and the ribs connecting the side walls 21b and 21c may be integrally formed at the same time as the molding part is formed. In the latter two cases, the rib is single.

  The leg portion 22 constituting the mold forming portion 21 is flush with the vehicle outer side surface of the vehicle outer side wall 21b and protrudes from the bottom wall 21a on the extension of the side wall 21b in the direction opposite to the vehicle outer side wall 21b. A vehicle outer wall portion 22a having no level difference from the vehicle outer surface 4a of the sash 4 in a state of being attached to the sash 4, and facing the wall portion 22a in the same direction as the vehicle outer wall portion 22a from the bottom wall 21a A vehicle interior side wall portion 22b that protrudes and a first rib 26 that projects from the vehicle exterior wall portion 22a in the same direction as the second rib 23 or 24 and contacts the vehicle interior side wall portion 22b and the bottom wall 21a. ing. The first rib 26 may be provided so as to protrude from the vehicle inner wall portion 22b and come into contact with the vehicle outer wall portion 22a and the bottom wall 21a.

The first rib 26 is also integrally formed with the one wall portion 22a or 22b by molding at the same time as the molding portion 21 is molded. However , the first rib 26 may be attached to the other wall portion 22b or 22a. , the first rib 26 leave separately preformed and molded part 21, and placed in a mold but it may also be insert molded during the molding of the molded portion 21. In this case , the first rib 26 can be formed using a material different from that of the molded part 21, similarly to the second ribs 23 and 24 described above.

  The mold forming part 31 shown in FIG. 9 is different or of the same type as the material forming the mold forming part 31 instead of the first rib 26 between the vehicle outer side wall part 32a and the vehicle inner side wall part 32b of the leg part 32. A filler 33 made of a material is packed and attached with an adhesive. This filler 33 may be insert-molded at the time of molding the molded part, or may be integrally formed at the same time as the molded part is molded.

  The mold forming portion 35 shown in FIG. 10 is formed by forming a hole 38 in the filler 37 constituting the leg portion 36. By forming the hole 38, the weight of the mold forming portion 35 is reduced, and the leg portion 36 is elastic. It is easy to fit into the sash 4 and hold it. The hole 38 may be formed over the entire area of the filler 37 or may be partially formed in the filler 37.

Cutting the corner of the upper edge of the window glass may be required not only for the window glass of the front door as described above but also for the rear door.
Therefore, the present invention can be applied not only to the molded part fitted in the sash at the location corresponding to the cut corner of the upper edge of the windshield, but also to the molded part at the location corresponding to the corner of the rear glass where the corner is cut. it can.

1. · Front door 2 · · Window glass 3 · Door panel 4 · · Sash 5 · · Extruded parts 6, 21, 31, 35 · · Molded parts 22, 32, 36 · · Legs 22a, 32a · · · Car outer wall portions 22b, 32b .. Car inner wall portions 23, 24 .. Second rib 26 .. First rib 33, 37 .. Filler 38.

Claims (3)

Of the glass run attached to the sash 4 of the automobile door, the mold forming portion 21 is provided at a location corresponding to the cut corner of the window glass upper edge, and is integrated with the bottom wall 21a and both sides of the bottom wall 21a. Seals that extend inward from the tip of the side wall 21b and the side wall 21c and the side walls 21b and 21c that are formed and elastically contact the window glass 2 when the window glass is closed to seal between the window glass lip 21d, and 21e, the bottom wall 21a than the side wall 21b, made of legs 22 which the window glass 2 in the opposite direction Ru is projected in the moving direction to open and close the 21c, only the leg portion 22 is fitted into the sash 4 In addition, the leg portion 22 includes a vehicle outer side wall portion 22a extending on the extension of the outer side wall 21b, a vehicle inner side wall portion 22b projecting from the vehicle outer side wall portion 22a, both wall portions 22a, 22b Chi, is integrally formed on one extending from one said, the bottom wall 21a and or molding of the glass run, characterized in that composed of the first rib 26 abutting the other wall. Molded portion of the glass run according to claim 1, characterized in that the first rib 26 is provided by connecting the bottom wall 21a and or other wall 22a, to 22b. Of the both side walls of the vehicle outer side wall 21b and the vehicle inner side wall 21c, at least one side wall is provided with second ribs 23, 24 extending from the bottom wall 21a or the vicinity thereof toward the glass run opening. The mold part of the glass run according to claim 1 or 2 .