JP2014028599A - Glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass run with a simple structure, having flexibility to be expandable and compressible in the inward and outward directions in a width direction of a vehicle, and capable of holding the end part of a door glass sandwiched therein to prevent the door glass from vibrating while traveling when the door glass is closed.SOLUTION: A glass run comprises a glass run body 23 which is constituted with a spring body made of rigid resin such as nylon, the whole body having a substantially W-shaped cross section, and which includes a holding part 22 and engagement wall parts 22b and 22c. The holding part 22 forms a groove with a substantially inverted V-shaped cross section by connecting a pair of leg parts 22a in substantially chevron shapes; and the engagement wall part 22b on the interior of a vehicle and the engaging wall part 22c on the exterior of the vehicle are respectively folded outward of the holding part 22 from the ends of leg parts 22a constituting the holding part 22. When fitting the glass run in a glass run fitting part 14 of a sash 4, the width of the glass run body 23 is compressed by pushing into both engagement wall parts 22b and 22c from both sides to push the glass run body 23 into the glass run engagement part 14.

Description

  The present invention relates to a glass run attached to an automobile door.

  Taking the automobile shown in FIG. 1 as an example, the glass run is provided to guide the raising and lowering of the door glass 3 to the sash or frame around the doors of the front door 1 and the rear door 2, and is usually made of rubber or thermoplastic elastomer. The molded product consists of an extrusion molding part and a mold molding part attached to a corner part. FIG. 2 shows a cross-sectional structure of the extruded portion 5 of the glass run attached to the sash 4 in the cross section taken along the line AA of FIG. 1, and is formed integrally with the bottom wall 6 and both ends of the bottom wall 6. The inner and outer side walls 7 and 8 and the end portions of the side walls 7 and 8 are integrally formed and extend toward the bottom wall 6. When the door glass 9 is closed, the door glass 9 is elasticated from both sides. The inside and outside sealing lips 11 and 12 that support the door glass, and the inside side wall 7 are folded back to the inside of the vehicle to form a sash 4 having a substantially U-shaped cross section. The glass run fitting portion 14 is formed in a flange 15 protruding toward the inner peripheral side from the vehicle inner side edge, and is integrally formed with the cover lip 16 covering the flange 15 and the end of the vehicle outer side wall 8. The outer side of the glass run fitting 14 protrudes outward from the vehicle. It is becoming more and elastically contact cover lip 17. In the figure, reference numeral 18 denotes a sub lip which is provided to suppress rattle noise (glass vibration noise) generated by glass vibration during travel.

  In such a glass run, the side walls 7 and 8 are arranged on the opening side so that the seal lips 11 and 12 do not come into contact with each other at the time of extrusion molding, and so as not to hinder the extraction of the core in the molding part. When the glass run fitting portion 14 is molded in an open unfolded state and mounted and attached to the glass run fitting portion 14, the glass run fitting portion 14 is pushed in with the opening side of the side walls 7, 8 being narrowed and expanded. It is made to hold in close contact with. In addition, although the mold forming part is not shown in the drawing, like the above-described extrusion molding part 5, the bottom wall, the vehicle inner and outer side walls integrally formed at both ends of the bottom wall, and the end of each side wall And a seal lip formed integrally with each other.

  In the conventional glass run described above, when the mold forming part is narrowed when the door is attached to the door sash or the corner of the frame, the mold forming part is not uniformly deformed. Therefore, the entire glass run is not attached to the door sash or frame. It may not follow and may cause mounting failure. In order to solve this problem, a V-shaped expansion / contraction part is formed on the bottom wall part, and at the time of molding, the expansion / contraction part is extended in the vehicle interior / exterior direction so that the seal lips do not come into contact with each other. There has been proposed a glass run that is attached to a glass run fitting portion in a state in which both side wall portions are translated inward at the time of attachment to the telescopic portion and the expansion / contraction portion is contracted (Patent Document 1).

  The seal lip of the glass run has the function of elastically contacting the door glass and sealing between the door glass, and also has the function of sandwiching and supporting the door glass from both sides, but the door glass vibrates during traveling. Oscillating noise called rattle noise may be generated. As a glass run to cope with this problem, a metal channel portion having a substantially U-shaped cross section for a glass run mounted on a door sash, a holding portion having a substantially Ω-shaped cross section for inserting and sandwiching an end portion of the door glass, There has also been proposed a glass run including arm portions that connect both the side walls and the bottom wall of the holding portion and the channel portion (Patent Document 2).

Japanese Patent No. 4270002 JP-A-11-227469

  The present invention has elasticity that can be expanded and contracted in the widthwise direction inside and outside of the vehicle, and when the door glass is closed, in order to prevent vibration of the door glass during traveling, the end portion of the door glass is inserted and clamped The object is to provide a simple glass run of a structure that can.

  The invention according to claim 1 is a glass run attached to a glass run fitting portion formed on a sash or a frame of an automobile door, wherein a pair of leg portions are connected in a substantially chevron shape and a substantially inverted V-shaped cross section A holding portion that inserts and sandwiches the end portion of the door glass at the groove bottom portion, and is folded back to both outsides of the holding portion from the leg end portions of both leg portions constituting the holding portion, and the glass run is made of glass. A glass run body having a generally W-shaped spring body, each having a locking wall portion that is locked to a locked portion of the glass run fitting portion when mounted on the run fitting portion. It has the part.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, a rubber or thermoplastic elastomer cover lip covering the side edge of the glass run fitting portion is integrally formed on the locking wall portion. age,
The invention according to claim 3 is the invention according to claim 2, wherein the cover lip is integrally formed with a seal lip that elastically contacts the door glass from both sides.

  The invention according to claim 4 is the invention according to claim 3, wherein the seal lip on the vehicle exterior side of the seal lip is an outer seal lip extending in a direction opposite to the groove bottom direction of the substantially inverted V-shaped groove. It is characterized by having.

  According to the glass run of the first aspect of the present invention, the glass run is constituted by the basic structure of the holding portion and the locking portion, and the structure is extremely simple and lighter than the glass run shown in FIG. In addition, it is possible to expand or contract the locking wall from both sides by pushing or releasing the locking wall, and when installing it on the glass run fitting, push the locking wall from both sides to It can be easily attached to the glass run fitting part by shrinking in the width direction, and after installation, the door glass end when the door glass is closed by the holding part is inserted and sandwiched to hold the door glass together with the seal To prevent rattle noise.

  According to the glass run of the invention according to claim 2, the cover lip covers the side edge portion of the glass run fitting portion so that the side edge portion is obscured, the appearance is improved, and the holding of the glass run is assisted. The glass run retention becomes stable.

  According to the glass run of the invention which concerns on Claim 3, the sealing performance with a door glass and the retention strength of a door glass improve.

  When driving an automobile door, wind noise is generated when the wind toward the center pillar and the rear pillar is caught between the door glass and the seal lip, especially along the door glass, on the rear side of the front door and the rear side of the rear door. However, as in the glass of the invention according to claim 4, when the vehicle has a seal lip on the outside of the vehicle that extends in the direction opposite to the groove bottom direction of the holding portion, wind travels between the seal lip and the door glass during traveling. It becomes difficult to get caught up and wind noise can be reduced.

A side view of an automobile. Sectional drawing in the AA of FIG. Sectional drawing of the glass run which concerns on this invention in the AA line of FIG. Sectional drawing of another embodiment of the glass run. Sectional drawing of another embodiment of the glass run. Sectional drawing of other embodiment of the glass run.

  Hereinafter, a glass run according to an embodiment of the present invention will be described with reference to the drawings. In the figure, the same components as those shown in FIG.

  The glass run 21 shown in FIG. 3 is attached to the glass run fitting portion 14 formed on the sash 4 in the same manner as the glass run 1 described above. A holding portion 22 forming an inverted V-shaped groove, a locking wall portion 22b on the vehicle inner side and a locking on the vehicle outer side that are folded back from the leg ends of both leg portions 22a forming the holding portion 22 to both outer sides of the holding portion 22, respectively. It consists of a wall portion 22c and a locking lip 22d that protrudes from the vicinity of the top of the holding portion 22 into the glass run fitting portion 14 and bends sideways. A glass run that protrudes and is integrally formed with locking portions 22e and 22f that are engaged with locked portions on both side walls of the glass run fitting portion 14 and is composed of a hard body of a hard resin, and has a substantially W-shaped cross section as a whole. From the main body 23 and the locking wall portion 22b inside the vehicle A cover lip 24 having a substantially U-shaped cross-section formed integrally and projecting toward the inside, and a cover lip 25 having a generally cross-shaped cross-section formed integrally and projecting from the engagement wall portion 22c on the vehicle exterior toward the vehicle exterior. These cover lips 24 and 25 are both made of rubber such as EPDM, which is a rubber-like elastic body, or a thermoplastic elastomer.

  The glass run fitting portion 14 formed on the sash of the automobile door has a concave groove shape, and the side walls on the vehicle inner side and the vehicle outer side constituting the glass run fitting portion 14 are slightly different in shape. It becomes a to-be-latched part provided with 27a, 27b.

  When the glass run 21 is attached to the glass run fitting portion 14 of the sash, both the locking wall portions 22b and 22c are pushed inward from both sides to narrow the width of the glass run main body 23 in the vehicle interior / exterior direction. Push into joint 14. This pushing operation is performed until the locking portions 22e and 22f are locked to the steps 27a and 27b on the inner side and the outer side wall portions of the glass run fitting portion 14 and are prevented from being detached. The inner locking wall portion 22b and the outer locking wall portion 22c are engaged with the locked portions on both side walls of the glass run fitting portion 14, and the locking lip 22d is the bottom of the glass run fitting portion 14. In this case, the holding portion 22 is elastically supported in the vertical direction in FIG.

  As the glass run 21 is pushed in as described above, the cover lip 24 is inserted into the flange 15 and the cover lip 25 elastically contacts the outer edge of the glass run fitting portion 14 so that both side edges of the fitting portion 14 are formed. Covering and improving the appearance, fulfills the function of holding the glass run 21, and stabilizes the holding of the glass run 21.

  When the door glass 9 is closed, the end portion of the door glass is pushed into the substantially inverted V-shaped groove of the holding portion 22 as shown in the drawing, and the holding portion 22 wraps around the end portion of the door glass and holds the door glass 9. .

  The glass run 21 of the above embodiment is formed of a hard resin such as polyethylene, polypropylene, and a thermoplastic elastomer having a hardness of 90A or more, but may be made of metal such as steel, and has a two-layer structure of resin and metal. It may be done. In any case, of the inner surface of the holding portion constituting the substantially inverted V-shaped groove, at least when the door glass is closed, the portion that contacts the door glass edge does not generate a collision sound even if the door glass edge hits. In addition, it is desirable that the door glass is formed of a material having a low sliding resistance so that the door glass can be opened and closed smoothly, or is coated with a resin having a low sliding resistance.

  The glass run 21 of the above embodiment also has cover lips 24 and 25. However, in the glass run of another embodiment, the cover lips 24 and 25 are omitted and only the glass run main body 23 is configured.

  The glass run 31 shown in FIG. 4 is a seal lip that extends inward from the side surfaces 24I and 25I on the inside (glass side) of the cover lips 24 and 25 in the glass run 21 shown in FIG. 32 and 33 are integrally formed, and the seal lips 32 and 33 elastically contact the door glass 9 from both sides to support and seal the door glass 9.

  The glass run 36 shown in FIG. 5 is a glass run 21 shown in FIG. 2 in which the outer side seal lip 33 is extended toward the lower side of the figure opposite to the top of the holding portion 22. Thus, wind noise generated when the door glass 9 is closed and the wind is caught between the door glass 9 and the seal lip 37 can be reduced more than that shown in FIG.

  A glass run 41 shown in FIG. 6 is obtained by integrally forming an outer seal lip 37 shown in FIG. 5 together with a seal lip 33 on the cover lip 25 on the outside of the glass run 31 shown in FIG. 41 also produces the same effect as the glass run 36 shown in FIG. 5, and can reduce wind noise.

In the above embodiment, the glass run on the center pillar side of the front door, which is a cross section taken along the line AA in FIG. 1, is shown, but it is attached not only to the pillar side, but also to the location indicated by B in FIG. You may comprise a glass run similarly to the said glass run.

··· Sash 9 · · Door glass 14 · · Glass run fitting portion 15 · · Flange 21, 31, 36, 41 · · Glass run 22 · · Holding portion 22b · · Locking wall portion 22c on the inside of the vehicle · · · Locking wall portion 22d on the outside of the vehicle..Locking lip 23..Glass run body 24, 25..Cover lip 32, 33, 37..Seal lip

Claims (4)

  A glass run 21, 31, 36, 41 mounted on a glass run fitting 14 formed on a sash 4 or a frame of an automobile door, wherein a pair of leg portions 22a are connected in a substantially chevron shape and the cross section is substantially inverted V The holding part 22 which comprises a shape groove | channel, inserts and clamps the edge part of the door glass 9 in a groove bottom part, and the leg part end of both the leg parts 22a which comprise this holding | maintenance part 22 respectively on both outer sides of the holding part 22 When the glass run 21, 31, 36, 41 is folded and attached to the glass run fitting part 14, the locking wall parts 22 b, 22 c are respectively locked to the locked parts of the glass run fitting part 14. A glass run having a glass run main body 23 that is formed of a spring body having a substantially W-shaped cross section.   2. The glass according to claim 1, wherein said locking wall portions 22b, 22c are integrally formed with cover lips 24, 25 made of rubber or thermoplastic elastomer covering a side edge portion of the glass run fitting portion 14. run.   3. The glass run according to claim 2, wherein seal lips (32, 33) are formed integrally with the cover lips (24, 25) so as to elastically contact the door glass (9) from both sides.   4. The glass run according to claim 3, wherein a seal lip on the vehicle exterior side of the seal lip has an outer seal lip 37 extending in a direction opposite to a groove bottom direction of the substantially inverted V-shaped groove.