JP5939821B2 - Glass run for automobile - Google Patents

Description

  The present invention relates to a glass run attached to a door sash of an automobile and sealing between the door sash and a door glass.

  A glass run for sealing between the door sash and the drag glass is attached to an attachment portion formed on the door sash of the automobile so as to elastically contact the door glass that moves up and down (see, for example, Patent Document 1).

  Conventional glass runs are generally formed of hard rubber or hard resin in order to ensure durability against door glass. Therefore, there is a problem that a so-called bottoming sound is large when the raised door glass hits the glass run in the roof part of the body of the automobile, which gives the user an unpleasant feeling.

  In order to solve these problems, a glass run 20 as shown in FIGS. 2 and 3 has been devised. The glass run 20 shown in FIG. 2 is provided with buffer lips 21 on the inner and outer surfaces of the bottom wall, and the glass run 20 shown in FIG. 3 is provided with buffer lips 21 on the inner surface of the bottom wall and soft on the outer surface. A cushion material 22 made of rubber or soft resin is provided. However, although these glass runs 20 can reduce the bottom sound to some extent, the effect is not sufficient.

  In view of this point, the glass run 30 shown in FIG. 4 is considered. In the glass run 30, the end of the bottom wall 31 on the vehicle exterior side and the indoor side end are connected by a partition wall 32, and a hollow portion 33 is formed between the partition wall 32 and the central portion of the bottom wall 31.

JP 2010-228517 A

  The glass run 30 shown in FIG. 4 has the advantage that the bottomed sound can be reduced as compared with the glass run 20 so far. However, the glass run 30 has a problem that the bottomed sound cannot be effectively reduced when the door glass 12 is unevenly built.

That is, in the glass run 30 includes a hollow portion 33, which is formed between only the central portion of the partition wall 32 and the bottom wall 31, for example, as indicated by the arrows in FIG. 4, with built door glass When it deviates to the vehicle outer side, the upper end of the raised door glass 12 will abut against a portion where the hollow portion 32 does not exist. As a result, a large bottomed sound is generated.

  Further, since the hollow portion 33 formed between the partition wall 32 and only the central portion of the bottom wall 31 is inevitably small, it is difficult to form an extrusion die, and the shape of the hollow portion 33 is difficult to stabilize. There is also a problem. If the shape of the hollow portion 33 is not stable, the bottomed sound cannot be stably reduced.

  The present invention has been devised in view of these problems, and an object thereof is to provide a glass run for an automobile that can effectively reduce the occurrence of bottoming noise.

Definition of Terms in the Specification and Claims The hard material is a solid material or foamed sponge material of rubber or thermoplastic elastomer, and has a higher rigidity than the soft material of the present invention.

  The soft material means a material having a lower rigidity than the hard material of the present invention, which is a solid material or foamed sponge material of rubber or thermoplastic elastomer.

This will be described with reference to FIG. 1 and FIGS. The glass run 1 for an automobile according to claim 1 is attached to an attachment portion 11 having a substantially U-shaped cross section formed on a door sash 10 of an automobile, and stands at least from the bottom wall 2 and the vehicle exterior of the bottom wall 2. The vehicle exterior wall 3 provided, the interior side wall 4 erected from the interior side of the bottom wall 2, the exterior vehicle seal 5 provided on the exterior vehicle wall 3, and the interior seal provided on the interior wall 4 It is provided with a portion 6 and elastically contacts the door glass 12.

At least in the roof portion of the vehicle body, an arc-shaped partition wall that is connected to the base end portion of the vehicle outer side wall 3 and the indoor side end portion of the bottom wall 2 or the base end portion of the indoor side wall and bulges downward. 8, and a swell 8 a that bulges upward is formed at the outer end of the partition wall 8. In order to prevent the exterior wall 3 from being pulled indoors due to the force when the upper end of the door glass 12 is elastically contacted with the partition wall 8, at least the The vehicle outer wall 3 is formed of a hard material S, and an engagement step portion 3 a that engages with the mounting portion 11 is provided on the vehicle outer surface of the vehicle outer wall 3.

  The glass run 1 for an automobile according to a second aspect is the invention according to the first aspect, wherein the outer side of the swell portion 8 a is formed of a hard material S continuously to the outer side wall 3.

A glass run 1 for an automobile according to claim 3 is the invention according to claim 1 or 2, wherein a latching piece portion 7 that engages with the attachment portion 11 is provided on an outer surface of the indoor side wall 4 facing the indoor side. The hooking piece is formed of a hard material S, and the indoor side wall other than the hooking piece is formed of a soft material P.

The automotive glass run 1 according to claim 1 is connected to the base end of the vehicle outer wall 3 and the indoor side end of the bottom wall 2 or the base end of the indoor side wall 4 at least in the roof portion of the vehicle body, An arc-shaped partition wall 8 bulging downward is provided. Since this partition wall 8 is longer on the vehicle exterior side than the conventional partition wall 8 formed by connecting the vehicle outer side end portion and the indoor side end portion of the bottom wall 2, the door glass 12 is caused by, for example, variation in installation, Even if it is provided to be shifted to the outside of the vehicle, its upper end elastically contacts the partition wall 8. Therefore, the generation of bottomed sound can be reliably reduced.

  Moreover, since the shape of the hollow part 9 can be enlarged by providing the partition wall 8 longer than the conventional one, the extrusion die can be easily formed. Thereby, the shape of the hollow part 9 can be stabilized and generation | occurrence | production of a bottomed sound can be reduced stably.

  Further, since the swell portion 8a bulging upward is formed at the vehicle outer end portion of the partition wall 8, the door glass 12 whose upper end is elastically contacted with the partition wall 8 is guided by this swell portion 8a and moves to the vehicle outer side. . As a result, the door glass 12 can be brought close to the outer surface of the door sash 10 so that the so-called roux flush surface of the vehicle body can be achieved, so that the appearance of the automobile can be improved.

  The automotive glass run 1 is extruded in a deployed state in the same manner as a normal glass run, but the swell portion 8a in the deployed state does not bulge upward (see FIG. 8) and is attached to the attachment portion 11. In this state, it bulges upward (see FIG. 5). That is, by forming this undulating portion 8a, the peripheral length of the partition wall 8 is set to be long so as to have a margin, and the undulating portion 8a after installation after extrusion molding in the unfolded state is swelled upward. . Incidentally, if the swell portion 8a is not formed on the partition wall 8, the peripheral length of the partition wall 8 is short and there is no room, so that the central portion of the partition wall 8 abuts against the bottom wall 2 when assembled to the mounting portion 11. It will be greatly dented. As a result, it is not possible to effectively prevent the generation of bottomed sound.

Further, since the vehicle outer wall 3 is formed of the hard material S, the rigidity thereof can be increased, and an engagement step portion 3 a that engages the attachment portion 11 is provided on the vehicle outer surface of the vehicle outer wall 3. Therefore, the glass run 1 can be assembled to the attachment portion 11 in a stable posture. In addition, since the one end part of the partition 8 is connected to the base end part of this vehicle outer side wall 3, the structural strength of the vehicle outer side wall 3 can also be raised. Thereby, the attitude | position in the state which attached the glass run 1 for motor vehicles to the attaching part 11 can be stabilized further, for example, the vehicle outer side wall 3 is chambered by the force at the time of the upper end of the door glass 12 contacting the partition 8 It is possible to prevent a situation in which the appearance and the sealing performance are deteriorated by being pulled inward. In addition, only a part is made of hard material and the others are made of soft material, so it is long and flexible, and it can be bent and folded when carrying or assembling to a car. It is.

  The glass run 1 for an automobile according to claim 2 exhibits the same effect as the invention according to claim 1. Further, since the outside of the swell portion 8a is formed of the hard material S continuously to the vehicle outside wall 3, the swell portion 8a having a shape bulging upward can be formed accurately. Thereby, the glass run 1 can be guided to the vehicle outer side by the swell portion 8a, and the flash surface can be more reliably achieved.

The glass run 1 for an automobile according to claim 3 exhibits the same effect as that of the invention according to claim 1. Further, a latching piece portion 7 that engages with the mounting portion 11 is projected on the outer surface of the indoor side wall 4 facing the indoor side, the latching piece portion 7 is formed of a hard material S, and other than the latching piece portion 7. Since the indoor side wall 4 is made of the soft material P, the glass run 1 can be attached to the attachment portion 11 stably and firmly.

It is a side view which shows the motor vehicle with which the glass run was attached. It shows the glass run which concerns on a prior art example, and is XX sectional drawing of FIG. The glass run which concerns on another prior art example is shown, and it is the XX sectional view taken on the line of FIG. Furthermore, the glass run which concerns on another prior art example is shown, and it is the XX sectional view taken on the line of FIG. The glass run which concerns on 1st embodiment of this invention is shown, and it is XX sectional drawing of FIG. 1 (The state which biased the door glass to the vehicle outer side is shown). It is a principal part enlarged view of FIG. The glass run which concerns on 1st embodiment of this invention is shown, and it is the XX sectional view taken on the line of FIG. 1 (The door glass shows the state which biased to the indoor side). It is sectional drawing which shows the expansion | deployment state of the glass run shown in FIG. The glass run which concerns on 2nd embodiment of this invention is shown, and it is the XX sectional drawing of FIG. It is sectional drawing which shows the expansion | deployment state of the glass run shown in FIG.

  A first embodiment of an automotive glass run 1 according to the present invention is shown in FIGS. 1 and 5 to 8. The glass run 1 is attached to a mounting portion 11 formed on a roof portion of a door sash 10 of an automobile, and is brought into elastic contact (sliding contact) with a door glass 12 that moves up and down, and a gap between the door sash 10 and the glass run 1 is obtained. Seal. The attachment portion 11 has a substantially U-shaped cross section, and includes a vehicle outer side step portion 11a and an indoor side step portion 11b to which the glass run 1 is locked. Note that the top and bottom used in the description of the present embodiment indicates a positional relationship based on a state in which the vehicle body is kept horizontal.

  The glass run 1 according to the present embodiment includes a bottom wall 2, a vehicle outer wall 3, an indoor side wall 4, a vehicle outer seal portion 5, an indoor side seal portion 6, and a latching piece portion 7, and has a substantially U-shaped cross section as a whole. Form.

  The bottom wall 2 is located at the bottom portion of the attachment portion 11 in a state where the bottom wall 2 is attached to the attachment portion 11. The vehicle outer wall 3 is erected from the vehicle outer end portion of the bottom wall 2 and is disposed on the vehicle outer side, and includes an engagement step portion 3a on the vehicle outer surface. The engagement step portion 3 a is engaged with the vehicle outer step portion 11 a of the attachment portion 11. The indoor side wall 4 is erected from the indoor side end of the bottom wall 2 and is disposed on the indoor side.

  The vehicle outer side seal portion 5 has a tongue-like shape protruding from the lower end portion of the vehicle outer side wall 3 toward the indoor side, and its side surface is in elastic contact with the vehicle outer surface of the door glass 12. The indoor side seal portion 6 is a hollow shape provided on the inner surface (the vehicle outer side) of the indoor side wall 4, and the side surface thereof is in elastic contact with the indoor side surface of the door glass 12. The latching piece portion 7 projects from the outer surface (indoor side) on the bottom wall side of the indoor side wall 4, and engages with the indoor side step portion 11 b of the attachment portion 11. In addition, the indoor side seal | sticker part 6 may be not a hollow shape but a tongue piece shape.

  Furthermore, the glass run 1 includes a partition wall 8. One end of the partition wall 8 is connected to the base end of the vehicle outer wall 3 and the other end is connected to the indoor side end of the bottom wall 2 and bulges downward. It is arcuate. In addition, an arcuate swell 8a bulging upward is formed at the vehicle outer end of the partition wall 8. Further, the vehicle outer wall 3 and the retaining piece 7 are formed of a hard material S of rubber or resin, and the other portions are formed of a soft material P of rubber or resin. In this embodiment, the hard material S is a solid material or a sponge material having a specific gravity of 0.7 to 1.1, and the soft material P is a sponge material having a specific gravity of 0.3 to 0.9 (preferably 0.4 to 0.7). It is said.

  Further, the automotive glass run according to the present embodiment is formed of a hard material S that is substantially continuous with the vehicle outer wall 3 on the vehicle outer side of the arcuate swell portion 8a that bulges upward.

  The glass run 1 for an automobile according to this embodiment includes an arc-shaped partition wall 8 that is connected to a base end portion of the vehicle outer side wall 3 and an indoor side end portion of the bottom wall 2 at the roof portion of the vehicle body and bulges downward. Since it is provided, generation | occurrence | production of a bottomed sound can be reduced effectively. That is, the partition wall 8 configured as described above can form the hollow portion 9 over the entire range from the indoor side end portion of the bottom wall 2 to the vehicle outer side portion.

  Therefore, even if the door glass 12 is attached in a state of being biased to the outside of the vehicle, the upper end of the door glass 12 that has moved upward can be reliably brought into elastic contact with the partition wall 8 (see FIGS. 5 and 6). Thereby, generation | occurrence | production of a bottomed sound can be reduced reliably.

  Further, since the swell portion 8a bulging upward is formed at the vehicle outer end portion of the partition wall 8, the door glass 12 inevitably guides to this swell portion 8a when the upper end of the door glass 12 comes into elastic contact with the partition wall 8. Moved to the outside of the car. Thereby, the door glass 12 can be brought close to the outer surface of the door sash 10 to achieve a flash surface, and the appearance of the automobile can be improved.

  Moreover, since the circumferential length of the partition wall 8 has a margin due to the formation of the undulating portion 8a, the partition wall 8 does not pull the vehicle outer side wall 3 to the indoor side when the upper end of the door glass 12 is brought into elastic contact with the partition wall 8. As a result, the flash surface can be maintained satisfactorily.

  On the contrary, when the door glass 12 is attached in a state of being biased toward the indoor side (see FIG. 7), when the upper end of the door glass 12 that has moved up is elastically contacted with the indoor side portion of the partition wall 8, the force causes a circular motion. An arcuate undulation 8a extends linearly. Thereby, since the upper end of the door glass 12 is surely elastically contacted with the partition wall 8, a sound with a bottom can be reduced. At the same time, the vehicle outer wall 3 is not pulled to the indoor side, but is pressed to the outdoor side, so that no gap is formed between the vehicle outer wall 3 and the door sash 10 (attachment portion 11). Thereby, a favorable external appearance property and sealing performance can be maintained.

  In addition, although the glass run 1 for motor vehicles in this embodiment is extrusion-molded in the expansion | deployment state, the wave | undulation part 8a in the expansion | deployment state does not bulge upward (FIG. 8). The partition wall 8 is extruded into a smooth arc without waviness, and only the connecting portion with the vehicle outer wall 3 is a hard material continuously from the vehicle outer wall 3. In other words, it is formed after being attached to the attachment portion 11. By forming approximately half of the swell portion 8a outside the vehicle with the hard material S, the swell portion 8a bulging upward when the glass run 1 is attached to the attachment portion 11 can be easily and accurately formed. (FIGS. 5 and 6). Thereby, the glass run 1 can be guided to the vehicle outer side by the swell portion 8a, and the flash surface can be more reliably achieved.

  Furthermore, since the vehicle outer wall 3 is formed of the hard material S, the automotive glass run 1 can increase its rigidity, and the engagement step portion 3a cannot be pulled out to the vehicle outer step portion 11a of the mounting portion 11. Can be engaged. Thereby, the glass run 1 can be attached to the attachment part 11 stably and firmly.

  Moreover, since the hollow part 9 can be largely formed by connecting the one end part of the partition 8 to the vehicle outer side wall 3, shaping | molding of the die of an extrusion molding becomes easy. Thereby, the shape of the hollow part 9 can be stabilized and generation | occurrence | production of a bottomed sound can be reduced stably.

  Moreover, since the latching piece part 7 is formed of the hard material S and is engaged with the indoor side step part 11b of the attachment base part, the glass run 1 can be attached to the attachment part 11 more stably and firmly.

  Furthermore, since the one end part of the partition wall 8 is connected to the base end part of the vehicle outer wall 3, the structural strength of the vehicle outer wall 3 can be increased. Thereby, the glass run 1 for motor vehicles can be attached to the attaching part 11 more stably and firmly. Thereby, for example, when the upper end of the door glass 12 comes into elastic contact with the partition wall 8, the vehicle outer side wall 3 is pulled to the indoor side by the force, and a gap is formed between the mounting portion 11 and the appearance characteristics. It is possible to prevent such a situation that the sealing performance is lowered.

  A second embodiment of an automotive glass run 1 according to the present invention is shown in FIG. 1, FIG. 9 and FIG. The feature of this glass run 1 is that the entire arcuate swell 8a bulging upward is formed of sponge rubber P.

  Similarly to the first embodiment, the automotive glass run 1 in the present embodiment is extruded in a deployed state, but the undulating portion 8a in the deployed state does not bulge upward (see FIG. 10). After the glass run 1 is attached to the door sash 10, when the door glass 12 pushes up the partition wall 8, the swell portion 8 a is kept in a bulged state. Further, the swell portion 8a can be set to bulge upward when attached to the attachment portion 11, for example, by setting the thickness of the intermediate portion to be thinner than other portions. .

  The glass run 1 for automobiles according to the present embodiment can also exhibit the same effects as the glass run of the first embodiment. Therefore, the bottom sound can be surely reduced, and the glass run 1 can be guided to the outside of the vehicle to achieve a flash surface. In the present embodiment, the indoor side end of the partition wall 8 is connected to the bottom wall 2, but it may be the base end of the indoor side wall 4.

  Moreover, according to this embodiment, although the vehicle exterior wall 3 is made of the hard material S, since the indoor side wall 4 and the bottom wall 2 are made of the soft material P, the long shape is highly flexible and portable. It is also possible to bend and bend it at the time of mounting or mounting on a car.

DESCRIPTION OF SYMBOLS 1 Car glass run 2 Bottom wall 3 Car outer wall 3a Engagement step part 4 Indoor side wall 5 Car outer side seal part 6 Indoor side seal part 7 Latching piece part 8 Bulkhead 8a Swell part 9 Hollow part 10 Door sash 11 Attachment part 11a Car Outside step portion 11b Indoor side step portion 12 Door glass 20 Glass run 21 Buffer lip 22 Cushion material 30 Glass run 31 Bottom wall 32 Partition 33 Hollow portion P Soft material S Hard material

Claims (3)

At least a bottom wall (2) and a vehicle outer wall (3) erected from the vehicle exterior side of the bottom wall, attached to a mounting portion (11) having a substantially U-shaped cross section formed on the door of the vehicle, An indoor side wall (4) erected from the indoor side of the bottom wall, a vehicle outer side seal portion (5) provided on the vehicle outer side wall, and an indoor side seal portion (6) provided on the indoor side wall. A glass run that elastically contacts the door glass (12), at least in the roof portion of the vehicle body, connected to the base end of the vehicle outer wall and the indoor side end of the bottom wall or the base end of the indoor side wall An arc-shaped partition wall (8) that bulges downward is provided, and a swell portion (8a) that bulges upward is formed at the outer end of the partition wall, and the upper end of the door glass is elastic to the partition wall. The outer wall of the vehicle is pulled to the indoor side by the force at the time of contact, and the appearance and sealing properties are degraded. So as to prevent the door, provided at least, the exterior wall so as to form a hard material (S), the engaging step is engaged with the attachment portion to the outer face of the vehicle outer wall (3a) A glass run for automobiles.   The glass run for an automobile according to claim 1, wherein the outside of the swell portion (8a) is formed of a hard material (S) continuously to the outside wall (3). On the outer surface of the indoor side wall (4) facing the indoor side, a latching piece (7) that engages with the mounting portion (11) is projected, and the latching piece is formed of a hard material (S). And the glass run for motor vehicles of Claim 1 or 2 which formed the said indoor side wall other than the said latching piece part with the soft material (P).

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