JP2009234521A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run capable of enhancing a sound insulating property and effectively preventing the entry of water into a vehicle without a deterioration of assembly workability and difficulty in manufacturing. <P>SOLUTION: An upper edge part 3 (extrusion molding part) of a glass run 2 is equipped with a cross-sectionally substantially U-shaped body part 13 made up of a bottom wall part 10, a vehicle inside sidewall part 11 and a vehicle outside sidewall part 12 extending from both ends of the bottom wall part 10 and with a pair of seal lips 14, 15, and formed by TPO. In a prescribed section W4 containing a connection part 11a between the bottom wall part 10 and vehicle inside sidewall part 11 and a prescribed section W6 containing a connection part 12a between the bottom wall part 10 and vehicle outside sidewall part 12, the ultra soft material layers S1, S2 coming into elastic contact with a wall part (an outer panel 52 or mold member 53) of a door frame 1a which are opposite to each other are formed by coextrusion molding, and constituted of a massive TPO in the section having IRHD of 20 or less. <P>COPYRIGHT: (C)2010,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 such as TPO (olefinic thermoplastic elastomer) having a relatively high rigidity. Therefore, due to tolerances at the time of glass run manufacture, the glass run and the door frame are There was a possibility that a gap might be formed between them. 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 and Patent Document 2). This lip part is elastically pressed against the door frame to position and prevent the glass run, to prevent water from entering the car and to prevent wind noise from entering, In some cases, the impact noise of the door glass is reduced.
JP 2003-165340 A JP 2005-193903 A

  However, when the lip portion is formed of the same solid TPO as that of the other main body portions in the above-described prior art, the rigidity is too high and the assembly workability may be deteriorated. On the other hand, although it is conceivable to reduce the thickness of the lip portion, there is a limit to reducing the thickness, and there is a possibility that a part of the lip portion may be lost when attempting to reduce the thickness more than necessary. In addition, the thinner the film, the easier it is to deform, but there is also a concern that it will be difficult to return to its original shape once it has been sunk.

  In order to dispel such concerns, it is conceivable to provide a sponge member in place of the lip portion. However, since the sponge member has innumerable holes, it is not always perfect in terms of water intrusion into the vehicle. there is a possibility.

  The present invention has been made in order to solve the above-mentioned problems, and the object thereof is not to improve the sound insulation but also to reduce the assembling workability and the difficulty in manufacturing. Another object of the present invention is to provide a glass run that can effectively prevent water from entering the vehicle.

  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 having an extruded portion made of an olefin-based thermoplastic elastomer, and a pair of seal portions extending from the vehicle inner side wall portion and the vehicle outer side wall portion to the inside of the main body portion and sealing with the door glass. A run,
Of the substantially U-shaped outer peripheral portion of the main body portion of the extrusion molding portion, at least in a predetermined range of the bottom wall portion, the main body portion and the seal portion are formed by simultaneous extrusion molding, and are opposed to the outer peripheral portion. Provide a non-foamed ultra-soft material layer that elastically contacts the wall of the door frame,
A glass run in which the ultra-soft material layer is composed of an olefinic thermoplastic elastomer having an IRHD (= International Rubber Hardness Degrees) of 20 or less.

  According to the above means 1, of the substantially U-shaped outer peripheral portion of the main body portion of the extrusion molding portion, at least a predetermined range of the bottom wall portion is formed by coextrusion molding together with the main body portion and the seal portion, and relative to the outer peripheral portion. A non-foamed ultra-soft material layer is provided which elastically contacts the wall of the door frame facing. For this reason, the glass run can be positioned and retained, water can enter the vehicle, wind noise can be prevented, and the door glass can be struck at the upper edge of the door. It is illustrated. In particular, since the ultra-soft material layer is non-foamed, there is no situation where air bubbles inhale as in the case where a sponge material is provided. In this sense, water can be more reliably prevented from entering the vehicle. it can. In addition, since the ultra-soft material layer is formed of an olefinic thermoplastic elastomer having an IRHD of 20 or less, there is no problem in assembling even if the lip portion is not thinned. For this reason, the assembly workability can be improved without difficulty in manufacturing.

  Mean 2. Of the substantially U-shaped outer peripheral portion of the main body, the connection portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connection portion between the bottom wall portion and the vehicle inner side wall portion or the vicinity thereof The glass run according to means 1, wherein the super soft material layer elastically contacting the wall portion of the door frame opposite to the outer peripheral portion is further provided on at least one of them.

  According to the means 2, of the substantially U-shaped outer peripheral portion of the main body portion, the connecting portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connecting portion between the bottom wall portion and the vehicle inner side wall portion or the same. At least one of the neighborhoods is further provided with an ultra-soft material layer that elastically contacts the wall portion of the door frame facing the outer peripheral portion. In general, since a relatively large gap is likely to be generated between the corner portion 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 the super soft material layer ( In particular, the sound insulation) can be made more reliable.

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 having an extruded portion made of an olefin-based thermoplastic elastomer, and a pair of seal portions extending from the vehicle inner side wall portion and the vehicle outer side wall portion to the inside of the main body portion and sealing with the door glass. A run,
Of the substantially U-shaped outer peripheral portion of the extruded portion, the connecting portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connection between the bottom wall portion and the vehicle inner side wall portion. A non-foamed ultra-soft material layer that is formed by coextrusion molding together with the main body part and the seal part and elastically contacts the wall part of the door frame opposite to the outer peripheral part. ,
A glass run characterized in that the ultra-soft material layer is composed of an olefinic thermoplastic elastomer having an IRHD of 20 or less.

  According to the means 3, of the substantially U-shaped outer peripheral portion of the main body portion, the connecting portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connecting portion between the bottom wall portion and the vehicle inner side wall portion or the same. At least one of the neighborhoods is further provided with an ultra-soft material layer that elastically contacts the wall portion of the door frame facing the outer peripheral portion. In general, a relatively large gap is likely to be generated between the corner portion and the wall portion of the door frame opposite to the corner portion. Therefore, by filling the gap with the super soft material layer, the above means 1 can be efficiently used. The described effects can be achieved.

  Means 4. Of the substantially U-shaped outer peripheral part of the main body part, at least a predetermined range of the vehicle interior side wall part is provided with the super soft material layer elastically contacting the wall part of the door frame facing the outer peripheral part. The glass run according to any one of means 1 to means 3,

  According to the means 4, the super soft material layer is further provided in a predetermined range of the outer peripheral portion of the vehicle inner side wall portion. As a result, the gap between the glass run and the door frame can be filled in a wider range, and the above-described effects can be achieved more reliably.

  Means 5. The glass run according to any one of means 1 to means 4, wherein the super soft material layer has a lump shape in cross section.

  According to the means 5, the super soft material layer has a lump shape, that is, a non-lip shape. Therefore, the super soft material layer having a predetermined shape can be stably extruded, and concerns such as chipping as in the case of forming a thin lip can be eliminated.

  Hereinafter, an 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: simply referred to as “door” in the figure) 1 as a vehicle door that can be opened and closed at an opening of an automobile body as a vehicle body is a door that can be raised and lowered. The glass G and the glass run 2 attached corresponding to the outer peripheral shape of the door glass G are 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, a locking projection 21 is formed on the vehicle outer side wall portion 12 so as to extend outward in the vicinity of the connecting portion 12 a with the bottom wall portion 10. And in the attachment state of the glass run 2, the latching protrusion 21 of a vehicle outer side is latched by the front-end | tip part 53c of the vertical wall part 53b bent as a to-be-latched part. Further, a locking projection 22 is formed outwardly in the vicinity of the tip of the vehicle interior side wall 11. And in the attachment state of the glass run 2, the said latching protrusion 22 is latched by the level | step-difference part 52a as a to-be-latched part formed in the outer panel 52. FIG.

In the present embodiment, the main body 13 and the seal lips 14 and 15 of the extruded portion 3 of the glass run 2 configured as described above are TPO (olefin-based thermoplastics) having a predetermined rigidity (IRHD = about 70). Elastomer).

  Further, in the present embodiment, among the substantially U-shaped outer peripheral portion of the main body portion 13, the predetermined section W4 including the connecting portion 11 a between the bottom wall portion 10 and the vehicle interior side wall portion 11, and the bottom wall portion 10 and the vehicle exterior side. In the predetermined section W6 including the connecting portion 12a with the side wall portion 12, ultra-soft material layers S1 and S2 are provided which are in elastic contact with the wall portion (outer panel 52 or molding member 53) of the door frame 1a facing each other. In the predetermined sections W4 and W6, the super soft material layers S1 and S2 are provided so as to straddle the connecting portions 11a and 12a, respectively (also at least in a predetermined range of the bottom wall portion 10). The super soft material layers S1 and S2 in the present embodiment are formed by coextrusion molding together with the main body 13 and the seal lips 14 and 15, and are composed of TPO of IRHD (= International Rubber Hardness Degrees) 20 or less. Furthermore, in this embodiment, the super soft material layers S1 and S2 have a cross-sectional lump shape, that is, a non-lip shape.

  In particular, the super soft material layer S <b> 1 is configured as a locking protrusion that extends outward in the vicinity of the connecting portion 11 a between the bottom wall portion 10 and the vehicle interior side wall portion 11. And in the attachment state of the glass run 2, super soft material layer S1 is latched by the inclination part 52b as a to-be-latched part formed in the outer panel 52. FIG. Therefore, the locking of the super soft material layer S1 to the inclined portion 52b, the locking of the locking projection 21 to the distal end portion 53c of the vertical wall portion 53b, and the stepped portion of the locking projection 22 The main body portion 13 of the glass run 2 is held inside the door frame 1a by locking to 52a or the like.

  On the other hand, the ultrasoft material layer is not provided in the predetermined ranges W2, W3, and W7 and the range W5 that faces the rivet 56 protruding from the flange portion 54.

  As described above in detail, in the present embodiment, the super soft material layers S1 and S2 that elastically contact the wall portion of the door frame 1a facing the predetermined portion at the predetermined portion of the substantially U-shaped outer peripheral portion of the main body portion 13. Is provided.

  Therefore, the glass run 2 can be positioned and prevented from coming off, and water can enter the vehicle interior and wind noise can be prevented from entering. In addition, in the upper side of the door, it is also possible to reduce the impact sound of the door glass G.

  In particular, since the ultra-soft material layers S1 and S2 in the present embodiment are non-foamed, a situation in which air bubbles suck in water does not occur as in the case where a sponge material is provided. Therefore, it is possible to more reliably prevent water from entering the inside of the vehicle. Further, since the super soft material layers S1 and S2 are formed of TPO of IRHD20 or less, it is not necessary to reduce the thickness as in the lip portion. In fact, in the present embodiment, the super soft material layers S1 and S2 have a cross-sectional shape, that is, a non-lip shape. Therefore, there is no need to worry about chipping due to thinning. Manufacturing is not difficult, and assembly workability can be improved. Thus, in this embodiment, it can be said that the unprecedented special effect that the malfunction at the time of providing a sponge material and a lip material can be solved at once is produced.

  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 the above embodiment, the predetermined section W4 including the connecting portion 11a between the bottom wall portion 10 and the vehicle interior side wall portion 11 among the substantially U-shaped outer peripheral portion of the main body portion 13, and the bottom wall portion 10 and the vehicle In the predetermined section W6 including the connecting portion 12a with the outer side wall portion 12, a configuration in which the super soft material layers S1 and S2 are provided is adopted. On the other hand, as shown in FIG. 3, it is good also as providing super soft material layer S3 elastically contacting the wall part of the door frame 1a which opposes in the cross-sectional longitudinal direction predetermined range W2 of the vehicle interior side wall part 11. As shown in FIG. Thereby, the clearance gap between the glass run 2 and the door frame 1a can be filled in a wider range.

  (B) Moreover, in the said embodiment, the structure which divides | segments and provides the super soft material layers S1 and S2 so that the rivet 56 which protruded from the flange part 54 may be pinched | interposed is employ | adopted. On the other hand, as shown in FIG. 4, it is good also as providing super soft material layer S4 over the wide range of the bottom wall part 10 whole region of the main-body part 13. As shown in FIG.

  In addition, the formation range of the ultra-soft material layer is not limited to the description of the above-described embodiment and the like, 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.

  (C) Although the glass run for the front door has been embodied in the above embodiment, 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.

It is a front view showing a door to which a glass run is assembled in one embodiment. 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. 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, G ... Door glass , S1, S2, S3, S4 ... Super soft material layer.

Claims (5)

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 having an extruded portion made of an olefin-based thermoplastic elastomer, and a pair of seal portions extending from the vehicle inner side wall portion and the vehicle outer side wall portion to the inside of the main body portion and sealing with the door glass. A run,
Of the substantially U-shaped outer peripheral portion of the main body portion of the extrusion molding portion, at least in a predetermined range of the bottom wall portion, the main body portion and the seal portion are formed by simultaneous extrusion molding, and are opposed to the outer peripheral portion. Provide a non-foamed ultra-soft material layer that elastically contacts the wall of the door frame,
A glass run characterized in that the ultra-soft material layer is composed of an olefinic thermoplastic elastomer having an IRHD of 20 or less.   Of the substantially U-shaped outer peripheral portion of the main body, the connection portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connection portion between the bottom wall portion and the vehicle inner side wall portion or the vicinity thereof The glass run according to claim 1, wherein the super soft material layer elastically contacting the wall portion of the door frame opposite to the outer peripheral portion is provided on at least one of the glass run. 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 having an extruded portion made of an olefin-based thermoplastic elastomer, and a pair of seal portions extending from the vehicle inner side wall portion and the vehicle outer side wall portion to the inside of the main body portion and sealing with the door glass. A run,
Of the substantially U-shaped outer peripheral portion of the extruded portion, the connecting portion between the bottom wall portion and the vehicle outer side wall portion or the vicinity thereof, and the connection between the bottom wall portion and the vehicle inner side wall portion. A non-foamed ultra-soft material layer that is formed by coextrusion molding together with the main body part and the seal part and elastically contacts the wall part of the door frame opposite to the outer peripheral part. ,
A glass run characterized in that the ultra-soft material layer is composed of an olefinic thermoplastic elastomer having an IRHD of 20 or less.   Of the substantially U-shaped outer peripheral part of the main body part, at least a predetermined range of the vehicle interior side wall part is provided with the super soft material layer elastically contacting the wall part of the door frame facing the outer peripheral part. The glass run according to any one of claims 1 to 3, wherein:   The glass run according to any one of claims 1 to 4, wherein the ultra-soft material layer has a cross-sectional lump shape.

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