JP2007076441A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run capable of improving a sound insulation property. <P>SOLUTION: An automobile door is equipped with the glass run 2 corresponding to a door glass G. The glass run 2 is equipped with a main body portion 13 composed of a bottom wall portion 10, and a vehicle inner side wall portion 11 and a vehicle outer side wall portion 12 extending from both ends of the bottom wall portion 10; and a pair of seal lips 14, 15 sealing a clearance with the door glass G. Of a generally C-shaped outer peripheral portion of the main body portion 13, in a cross section longitudinal direction predetermined range W2 of the vehicle inner side wall portion 11, a predetermined section W4 including a connecting portion 11a between the bottom wall portion 10 and the vehicle inner side wall portion 11, a predetermined section W6 including a connecting portion 12a between the bottom wall portion 10 and the vehicle outer side wall portion 12, the sponge rubber layers S1, S2, S3 elastically contacting with a wall portion of the door frame 1a which are opposite to each other are provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a glass run attached to a vehicle door.

  A door for a vehicle such as an automobile is provided with a glass run that slides and seals the periphery of the door glass that moves up and down. The glass run has a substantially U-shaped main body portion comprising a bottom wall portion and a pair of side wall portions extending from both ends of the bottom wall portion, and extends substantially from the front ends of both side wall portions of the main body portion to the inside of the main body portion. And a pair of sealing lips for sealing the glass.

In general, a glass run is made of a solid elastic material having a relatively high rigidity. Therefore, a gap may be formed between the glass run and the door frame during installation due to tolerances in manufacturing the glass run. It was. Therefore, in recent years, in order to prevent a gap between the glass run and the door frame, a lip portion that abuts on the door frame is formed to extend on the door frame facing surface side of the bottom wall portion of the glass run. (See, for example, Patent Document 1).
JP 2003-165340 A

  However, the lip portion as in the prior art is sufficient if it only prevents the ingress of water into the vehicle, but it is insufficient in terms of sound insulation to prevent noise from outside the vehicle.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a glass run capable of improving sound insulation.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. It is attached to the door frame of a vehicle door having a door glass that moves up and down,
A main body portion including a bottom wall portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the bottom wall portion;
A glass run including a pair of seal portions that extend from the vehicle inner side wall portion and the vehicle outer side wall portion to the inside of the main body portion and seal with the door glass,
A sponge elastic material layer elastically contacting the wall portion of the door frame facing the outer peripheral portion is provided in at least a predetermined range of the outer peripheral portion of the vehicle inner side wall portion of the substantially U-shaped outer peripheral portion of the main body portion. A glass run characterized by that.

  According to the above-mentioned means 1, at a predetermined part of the substantially U-shaped outer peripheral part of the main body part, that is, at least in a predetermined range of the outer peripheral part of the vehicle interior side wall part, an elastic force is applied to the wall part of the door frame facing the predetermined part. A sponge elastic material layer in contact therewith is provided. As a result, the gap between the glass run and the door frame can be filled in a relatively wider range than the conventional lip portion. Further, since the sponge elastic material is more flexible than the solid elastic material, it can be easily deformed along the shape of the wall portion when elastically contacting the wall portion of the door frame. Therefore, it is possible to absorb tolerances, attachment errors, and the like at the time of manufacturing the glass run, and to absorb the steps even when there are steps on the wall of the door frame, for example. That is, compared with a lip portion made of a conventional solid elastic material, a gap is less likely to be formed, and adhesion is enhanced. As a result, it is possible to prevent intrusion of noise and the like from the outside of the vehicle and improve sound insulation. In addition, effects such as prevention of water intrusion into the vehicle, absorption of vibration during traveling, and absorption of impact when the door glass is closed and suppression of collision noise can be obtained at portions corresponding to the upper side of the door. If a large number of lip portions made of a solid elastic material are provided to obtain the same effect as described above, the rigidity at the time of mounting the glass run increases, so it is difficult to fit the glass run into the door frame. There is a fear.

  Mean 2. In the substantially U-shaped outer peripheral portion of the main body portion, sponge elasticity that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at or near the connecting portion of the bottom wall portion and the vehicle outer side wall portion. The glass run according to means 1, comprising a material layer.

  According to the above-mentioned means 2, the door facing the outer peripheral portion at the vehicle outer corner portion or the vicinity thereof which is the connecting portion of the bottom wall portion and the vehicle outer side wall portion in the substantially U-shaped outer peripheral portion of the main body portion. A sponge elastic material layer that elastically contacts the wall of the frame is provided. Since a relatively large gap is likely to occur between the outer corner portion of the vehicle and the wall portion of the door frame opposite to the corner portion, the effect of the means 1 can be achieved by filling the gap with a sponge elastic material layer. It can be made more reliable. The same applies to the means 3 to be described later, but more preferably, the sponge elastic material layer is provided from the bottom wall portion side to the vehicle outer side wall portion side across the connecting portion between the bottom wall portion and the vehicle outer side wall portion. It is preferable.

Means 3. It is attached to the door frame of a vehicle door having a door glass that moves up and down,
A main body portion including a bottom wall portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the bottom wall portion;
A glass run including a pair of seal portions extending from the vehicle interior side wall portion and the vehicle exterior side wall portion to the inside of the main body portion and performing sealing with the door glass,
Sponge that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at least in the vicinity of the connecting portion of the bottom wall portion and the outer side wall portion of the main body portion or at the vicinity thereof. A glass run comprising an elastic material layer.

  According to the means 3, the same operational effects as the means 1 can be obtained.

  Means 4. Sponge elasticity that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at or near the connecting portion of the bottom wall portion and the vehicle inner side wall portion at the substantially U-shaped outer peripheral portion of the main body portion. The glass run according to any one of means 1 to 3, further comprising a material layer.

  According to the means 4, the same effects as the means 1 and 2 can be obtained. Further, like the means 2, more preferably, the sponge elastic material layer is provided from the bottom wall portion side to the vehicle inner side wall portion side across the connecting portion of the bottom wall portion and the vehicle inner side wall portion. Is preferred. As one example, for example, a range from the connection portion of the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof to the connection portion of the bottom wall portion and the vehicle inner side wall portion or the vicinity thereof (the cross-sectional length of the bottom wall portion). A material provided with a sponge elastic material layer in the entire direction).

Means 5. In the substantially U-shaped outer peripheral part of the main body part, provided with a locking projection to be locked to the locked part provided on the wall part of the door frame,
The glass run according to any one of means 1 to 4, wherein at least a predetermined range on the locking direction side of the locking projection is a non-formation range of the sponge elastic material layer.

  According to the means 5, a space (non-formation range) is formed on the side of the locking projection (locking direction of the glass run), and the locking projection is more reliably engaged with the locked portion of the door frame. Can be stopped. On the other hand, when there is no space on the locking direction side, it is difficult to lock the locking protrusion. Further, if the locking projection is made of a solid elastic material as in the conventional case, the mounting state can be stabilized as compared with the case where the portion made of a sponge elastic material having low rigidity is used as the locking portion.

  Means 6. The glass run according to any one of means 1 to 5, wherein a panel member outside the vehicle is attached to a door frame made of a bright metal or resin molding member.

  According to the means 6, the glass run is attached to the door frame in which the panel member on the outside of the vehicle is made of a bright metal or resin molding member. In the case of such a structure, since a relatively large gap is likely to be generated between the glass run and the door frame, the effects of the respective means are more exhibited. As an example of such a structure, for example, a structure in which a door frame is composed of a panel member disposed inside the vehicle and a molding member disposed outside the vehicle and covering the panel member from the outside of the vehicle, so-called Hidden type.

Mean 7 In the glass run attached to the door frame having a configuration in which a predetermined fastening member protrudes from the door frame to the main body side of the glass run,
The glass run according to any one of means 1 to 6, wherein a range opposite to the fastening member in a substantially U-shaped outer peripheral portion of the main body is defined as a non-formation range of the sponge elastic material layer. .

  According to the said means 7, it can suppress that the attachment property of a glass run falls also in the glass run attached to the door frame of the structure which the predetermined | prescribed fastening member protruded from the door frame to the glass run side. Examples of the fastening member include a rivet for fastening various members constituting the door frame, a clip for attaching a weather strip to the door frame, and the like.

  Means 8. The glass run according to any one of means 1 to 7, wherein the sponge elastic material layer is integrally formed with the main body.

  According to the means 8, since the sponge elastic material layer is prepared as a separate member in advance and the work process of attaching the sponge elastic material layer with an adhesive or a double-sided tape is not required, the work process can be simplified. Furthermore, it is possible to prevent a problem that the sponge elastic material layer is peeled off.

  Means 9. The glass run according to any one of means 1 to 8, wherein the sponge elastic material layer is made of a highly foamed (low specific gravity) sponge elastic material.

  According to the means 9, the sponge elastic material layer is made of, for example, a highly foamed sponge elastic material (highly foamed sponge rubber) having a specific gravity of 0.1 to 0.3. Thereby, for example, since it is richer in flexibility as compared with the case where it is constituted by a conventional sponge elastic material having a specific gravity of 0.4 to 0.7, the effects of the above-mentioned means are more reliably exhibited. .

  Means 10. The glass run according to any one of means 1 to 9, wherein the main body is made of a solid elastic material (solid rubber).

  According to the above means 10, the main body is made of a solid elastic material. For this reason, a glass run can be hold | maintained in a proper shape, obtaining the effect of each said means.

[First Embodiment]
Hereinafter, a first embodiment will be described in detail with reference to the drawings. As shown in FIG. 1, an automobile door (a front door in the figure: hereinafter simply referred to as “door”) 1 as a vehicle door provided to be openable and closable at an opening of an automobile body as a vehicle body is a door that can be raised and lowered. Corresponding to the outer peripheral shape of the door glass G, a glass run 2 made of EPDM (ethylene-propylene-diene copolymer rubber) is provided.

  The glass run 2 includes an extrusion molding portion 3 corresponding to the upper side portion in the longitudinal direction, extrusion molding portions 4 and 5 corresponding to the front and rear vertical side portions, and ends of the extrusion molding portions 3, 4 and 5. It is comprised from the shaping | molding parts 6 and 7 (part which attached | subjected the dot pattern in FIG. 1) to connect. Each of the extrusion molding portions 3 to 5 is formed in a substantially linear shape (in a long shape) by an extruder (not shown). In addition, the molding parts 6 and 7 are connected and molded by a mold apparatus (not shown) so that the two extrusion molding parts 3 and 4 and the extrusion molding parts 3 and 5 are connected to each other at a predetermined angle. Is done.

  Next, referring to FIG. 2, the configuration of the glass run 2 and the configuration of the door frame 1 a of the door 1 to which the glass run 2 is attached will be described in detail based on the configuration of the upper side portion of the door 1. FIG. 2 is a partial sectional view taken along line JJ of FIG.

  The upper side portion of the door frame 1a includes an inner panel 51 and an outer panel 52 as door panel members disposed inside the door glass G, and a molding member 53 as an exterior member attached to the panels 51 and 52. It is configured. More specifically, the outer side end portion of the outer panel 52 is bent so as to sandwich the outer side end portion of the inner panel 51, thereby forming a flange portion 54 extending in the vehicle outer side direction. . A molding member 53 is attached to the flange 54.

  The molding member 53 is made of bright metal or resin, and includes an attachment portion 53a attached along the flange portion 54, and a vertical wall portion 53b formed along the vertical direction on the vehicle outer side of the attachment portion 53a. I have. Further, a retainer 55 having a substantially C-shaped cross section for mounting a weather strip (not shown) is formed on the upper side of the attachment portion 53a. In the present embodiment, the molding member 53 corresponds to a door panel member (panel member) disposed outside the door glass G.

  And the inner panel 51, the outer panel 52, and the molding member 53 are integrally joined by fixing with the rivet 56 as a fastening member through the hole part 57 formed in the flange part 54 and the attaching part 53a. Yes. The door frame 1a in the present embodiment is of a so-called hidden type in which the outside of the vehicle is covered with a molding member 53, and has a structure in which a substantially U-shaped channel for fitting the glass run 2 is not provided. Yes. Therefore, the glass run 2 is attached between the outer panel 52 and the molding member 53.

  Next, the structure of the upper side part (extrusion molding part) 3 of the glass run 2 is demonstrated. The upper side 3 of the glass run 2 includes a bottom wall 10, a main body 13 having a substantially U-shaped cross section including a vehicle inner side wall 11 and a vehicle outer side wall 12 extending from both ends of the bottom wall 10, and the vehicle inner side. Sealing lips 14 and 15 are provided as a pair of seal portions that extend from the side wall portion 11 and the vehicle outer side wall portion 12 to the inside of the main body portion 13 and seal with the door glass G, respectively. The vehicle outer side wall 12 is formed to be relatively shorter than the vehicle inner side wall 11, and the vehicle outer seal lip 15 is relatively smaller (shorter) than the vehicle inner seal lip 14. ) Is set. Thereby, the vehicle exterior side surface of the molding member 53 (vertical wall portion 53b) can be set short, the appearance is improved, and the flash surface is made to be substantially flush with the vehicle exterior side surface of the door glass G.

  Further, locking lips 21 and 22 as locking protrusions extending outward in the vicinity of the connecting portions 11a and 12a with the bottom wall portion 10 are formed on the vehicle inner side wall portion 11 and the vehicle outer side wall portion 12, respectively. Has been. And in the attachment state of the glass run 2, the latching lip 21 inside a vehicle is latched by the inclination part 52a as a to-be-latched part formed in the outer panel 52. As shown in FIG. On the other hand, the locking lip 22 on the vehicle exterior side is locked to the distal end portion 53c of the vertical wall portion 53b that is bent as a locked portion. Further, a holding lip 25 as a locking projection is formed outwardly in the vicinity of the front end of the vehicle interior side wall 11. And in the attachment state of the glass run 2, the holding lip 25 is latched by the level | step-difference part 52b as a to-be-latched part formed in the outer panel 52. FIG. With these configurations, the main body 13 of the glass run 2 is held inside the door frame 1a.

  Furthermore, in this embodiment, the cross-sectional longitudinal direction predetermined range W2 of the vehicle interior side wall portion 11 of the substantially U-shaped outer peripheral portion of the main body portion 13 and the connecting portion 11a between the bottom wall portion 10 and the vehicle interior side wall portion 11 are included. In the predetermined section W4 and the predetermined section W6 including the connecting portion 12a between the bottom wall portion 10 and the vehicle outer side wall portion 12, each of the wall portions (the outer panel 52 or the molding member 53) of the door frame 1a facing each other is elastically contacted. Sponge rubber layers S1, S2 and S3 are provided as sponge elastic material layers. In the predetermined sections W4 and W6, sponge rubber layers S2 and S3 are provided from the bottom wall 10 side to the tips of the locking lips 21 and 22 across the connecting portions 11a and 12a, respectively.

  On the other hand, the predetermined ranges W3, W7, and W1 below the locking lips 21 and 22 and the holding lip 25 (the locking direction side) are not provided with the sponge rubber layer and are not formed in the sponge rubber layer. ing. As a result, a space is formed below the locking lips 21 and 22 and the holding lip 25, and the door frame 1a can be more securely locked.

  Further, a range W5 opposite to the rivet 56 protruding from the flange portion 54 is also a range in which the sponge rubber layer is not formed because the sponge rubber layer is not provided. Thereby, it is suppressed that the attachment property of the glass run 2 falls.

  As described above, the glass run 2 is made of EPDM. Among them, the main body 13, the seal lips 14 and 15, the locking lips 21 and 22, the holding lip 25 and the like are made of EPDM solid rubber (solid elastic material). On the other hand, the sponge rubber layers S1, S2, and S3 in the present embodiment have a specific gravity of 0.1 to 0.3, which is richer in flexibility than a normal sponge rubber (specific gravity of about 0.4 to 0.7). It is composed of highly foamed EPDM sponge rubber. However, the sponge rubber layers S1, S2, and S3 are integrally formed with the main body 13 when the upper side 3 of the glass run 2 is extruded.

  As described above in detail, in this embodiment, the sponge rubber layers S1, S2, elastically contacting the wall portion of the door frame 1a facing the predetermined portion at a predetermined portion of the substantially U-shaped outer peripheral portion of the main body portion 13. S3 is provided. Thereby, it is possible to fill the gap between the glass run 2 and the door frame 1a in a relatively wider range than the conventional lip portion. Further, since the sponge elastic material is more flexible than the solid elastic material, it can be easily deformed along the shape of the wall portion when elastically contacting the wall portion of the door frame 1a. Therefore, it is possible to absorb tolerances, attachment errors, and the like at the time of manufacturing the glass run 2, and to absorb the step even when there is a step in the wall portion of the door frame 1a. That is, compared with a lip portion made of a conventional solid elastic material, a gap is less likely to be formed, and adhesion is enhanced. As a result, it is possible to prevent intrusion of noise and the like from the outside of the vehicle and improve sound insulation. In addition, it is possible to obtain effects such as prevention of water intrusion into the vehicle, absorption of vibration during traveling, and absorption of impact when the door glass G is closed and suppression of collision noise at a portion corresponding to the upper side of the door 1.

[Second Embodiment]
Hereinafter, a second embodiment will be described with reference to FIG.

  The door frame 80 in the present embodiment is provided with a door channel 81 having a substantially U-shaped cross section, and a glass run 83 is attached to the inner peripheral side of the door channel 81.

  The glass run 83 includes a bottom wall portion 84, a vehicle body side wall portion 85 extending from both ends of the bottom wall portion 84, and a vehicle body side wall portion 85 having a substantially U-shaped cross section, and a vehicle body side wall portion 85. A seal portion 88 extending to the inside of the main body portion 87 and connected to the inside of the bottom wall portion 84 and a seal lip 89 extending from the vehicle outer side wall portion 86 to the inside of the main body portion 87 are provided.

  The seal portion 88 is curved so as to follow the upper end surface of the door glass G and the inner wall portion of the upper edge portion. Further, the hollow portion 90 is formed by the seal portion 88, the bottom wall portion 84, and the vehicle interior side wall portion 85. As a material of the seal portion 88, EPDM sponge rubber having a specific gravity of 0.4 to 0.7 is employed. Then, the vehicle exterior, upper end surface, and vehicle interior of the door glass G are sealed by the seal portion 88 and the seal lip 89.

  Further, locking lips 91 and 92 as locking protrusions extending outward in the vicinity of the connecting portions 85a and 86a with the bottom wall portion 84 are formed on the vehicle interior side wall portion 85 and the vehicle exterior side wall portion 86, respectively. Has been. The locking lips 91 and 92 are locked to the locked portion in the door channel 81, whereby the main body 87 of the glass run 83 is held in the door channel 81.

  Furthermore, in the present embodiment, of the substantially U-shaped outer peripheral portion of the main body 87, the range from the substantially leading end of the locking lip 91 on the vehicle inside to the substantially leading end of the locking lip 92 on the vehicle outside, that is, the bottom wall portion 84. Is provided with a sponge rubber layer S4 as a sponge elastic material layer that elastically contacts the wall of the door channel 81 facing each other. The sponge rubber layer S4 is made of a highly foamed EPDM sponge rubber having a specific gravity of 0.1 to 0.3.

  With such a configuration, the same effect as the first embodiment is achieved.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In each of the above embodiments, the glass run for the front door is embodied. However, the portion of the door in which such a glass run is adopted is not limited at all, and can be applied to, for example, a rear door. . Moreover, you may employ | adopt the said structure not only to the upper side part of a glass run but to the vertical side part of a glass run, for example.

  (B) The formation range of the sponge rubber layer is not limited to the above-described embodiments, and can be appropriately changed according to the shape of the door frame and the mounting structure with the door frame. Therefore, depending on the case, you may provide in the substantially U-shaped outer peripheral part whole region of a main-body part. However, the sponge rubber layer may be provided at least in a predetermined range in the longitudinal direction of the cross section of the vehicle inner side wall, or at least in the vicinity of the connecting portion between the bottom wall and the vehicle outer side wall.

  (C) As an elastic material constituting the glass run in each of the above embodiments, EPDM is employed, but other than that, for example, TPO (olefin thermoplastic elastomer) may be employed.

  (D) As the material of the sponge rubber layer, highly foamed sponge rubber having a specific gravity of 0.1 to 0.3 is adopted, but not limited to this, ordinary sponge rubber having a specific gravity of 0.4 to 0.7 is used. It may be adopted.

It is a front view of the door where a glass run is assembled. FIG. 2 is a partial cross-sectional view taken along the line JJ of FIG. 1 for explaining the glass run and its mounting structure. It is a fragmentary sectional view for demonstrating the glass run and its attachment structure in another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Door, 1a ... Door frame, 2 ... Glass run, 10 ... Bottom wall part, 11 ... Car inner side wall part, 12 ... Car outer side wall part, 13 ... Main-body part, 14, 15 ... Seal lip, 21,22 ... Locking lip, 25 ... holding lip, 51 ... inner panel, 52 ... outer panel, 53 ... molding member, G ... door glass, S1, S2, S3 ... sponge rubber layer.

Claims (9)

It is attached to the door frame of a vehicle door having a door glass that moves up and down,
A main body portion including a bottom wall portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the bottom wall portion;
A glass run including a pair of seal portions extending from the vehicle interior side wall portion and the vehicle exterior side wall portion to the inside of the main body portion and performing sealing with the door glass,
A sponge elastic material layer elastically contacting the wall portion of the door frame facing the outer peripheral portion at least in a predetermined range of the outer peripheral portion of the vehicle inner side wall portion of the substantially U-shaped outer peripheral portion of the main body portion. A glass run characterized by that.   In the substantially U-shaped outer peripheral portion of the main body portion, sponge elasticity that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at or near the connecting portion of the bottom wall portion and the vehicle outer side wall portion. The glass run according to claim 1, further comprising a material layer. It is attached to the door frame of a vehicle door having a door glass that moves up and down,
A main body portion including a bottom wall portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the bottom wall portion;
A glass run including a pair of seal portions extending from the vehicle interior side wall portion and the vehicle exterior side wall portion to the inside of the main body portion and performing sealing with the door glass,
Sponge that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at least in the vicinity of the connecting portion of the bottom wall portion and the outer side wall portion of the main body portion or at the vicinity thereof. A glass run comprising an elastic material layer.   Sponge elasticity that elastically contacts the wall portion of the door frame opposite to the outer peripheral portion at or near the connecting portion of the bottom wall portion and the vehicle inner side wall portion at the substantially U-shaped outer peripheral portion of the main body portion. The glass run according to claim 1, further comprising a material layer. In the substantially U-shaped outer peripheral part of the main body part, provided with a locking projection to be locked to the locked part provided on the wall part of the door frame,
5. The glass run according to claim 1, wherein at least a predetermined range closer to the locking direction than the locking protrusion is a non-formation range of the sponge elastic material layer.   The glass run according to any one of claims 1 to 5, wherein a panel member outside the vehicle is attached to a door frame made of a bright metal or resin molding member. In the glass run attached to the door frame having a configuration in which a predetermined fastening member protrudes from the door frame to the main body side of the glass run,
The glass according to any one of claims 1 to 6, wherein, in the substantially U-shaped outer peripheral portion of the main body portion, a range facing the fastening member is a non-formation range of the sponge elastic material layer. run.   The glass run according to any one of claims 1 to 7, wherein the sponge elastic material layer is integrally formed with the main body. The glass run according to any one of claims 1 to 8, wherein the sponge elastic material layer is made of a highly foamed sponge elastic material.

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