JP4858408B2 - Glass run - Google Patents

Description

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

  In general, a vehicle door such as an automobile is provided with a glass run for sealing a peripheral portion of a sliding door glass. The glass run has a main body portion having a substantially U-shaped cross section, and a pair of seal lips extending inwardly from the front ends of both side walls of the main body portion, and the main body portion is provided on the inner peripheral side of the door frame. It is inserted into the sash. And the vehicle inner side and vehicle outer side surface of the peripheral part of the door glass are sealed by the pair of seal lips.

  In addition, when the corner shape of the door frame is a right angle or an acute angle shape, and the corner portion of the door opening on the body side is gently curved, like the rear upper corner portion of the front door, There is a possibility that a gap is formed between the glass run to be disposed and the weather strip on the body side, resulting in a decrease in appearance quality. For this reason, it is also possible to cover the gap with an extended wall portion extending from the inner side wall of the glass run to the inner peripheral side of the glass run at the corner portion of the glass run to improve the appearance quality (for example, patents) Reference 1).

However, the extension wall portion may follow the movement of the seal lip accompanying, for example, sliding of the door glass, and the tip portion (inner peripheral side edge portion) may be lifted. On the other hand, a locking portion is provided in the vicinity of the distal end portion of the extending wall portion, and the locking portion is locked to an end portion of an interior member such as a garnish to prevent the lifting (for example, , See Patent Document 2).
JP-A-8-295134 JP 2004-50881 A

  However, as with the glass run body, if the extended wall and the locking part are made of a rubber material such as EPDM (ethylene-propylene-diene copolymer) rubber, it deforms when stress is applied. It is easy, and in some cases, the locking portion may be detached from the interior member. For this reason, it is conceivable to form a corner-shaped molded portion having an extending wall portion, a locking portion, and the like with a thermoplastic resin material such as an olefin-based thermoplastic elastomer (TPO). In a relatively thick portion such as the vicinity of the connecting portion with the locking portion, there is a possibility that sink marks may occur on the outside of the extended wall portion, that is, on the design surface during molding due to the characteristics of the material. On the other hand, just by reducing the thickness of the extending wall portion and the locking portion, it is easy to deform when stress is applied, as in the case of forming the rubber material, and the holding force by the locking portion is reduced. Is concerned.

  The present invention has been made to solve the above problems, and its purpose is to provide a glass run capable of suppressing the lifting of the extended wall portion of the corner portion of the glass run and improving the appearance quality. It is to provide.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to a corresponding means are added as needed.

Means 1. It has a door glass that moves up and down, and an interior member is attached along the inside of the door frame. At least a part of the interior member is arranged at an inner peripheral position than the door frame at least at a predetermined corner portion of the door frame. A glass run attached to a vehicle door to be installed,
In a molded part molded by a thermoplastic resin material corresponding to a predetermined corner part of the door frame,
A body portion attached to the sash provided on the inner peripheral side of the door frame, and having a substantially U-shaped cross section comprising a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the base portion;
A pair of seal lips that extend from the front end of the vehicle inner side wall and the vehicle outer side wall to the inside of the main body and seal with the door glass,
An extending wall formed to extend from the front end of the vehicle interior side wall to the inner peripheral side of the corner,
A locking portion that is formed to protrude toward the vehicle inner side in the vicinity of the inner peripheral side edge of the extending wall, and is locked to the edge of the corner of the interior member;
Formed by an inner peripheral side edge of the extension wall and the locking portion, and an insertion recess into which an edge of a corner portion of the interior member is fitted,
The insertion recess is set so that its width is smaller than the thickness of the edge of the corner portion of the interior member,
The locking portion is configured such that a groove portion is formed on the outer peripheral side of the base portion so that the head portion can be tilted to the outer peripheral side, and the edge portion of the corner portion of the interior member is fitted into the fitting portion. The glass run, wherein the head is tilted by a predetermined amount and is in contact with the extended wall portion when fitted in the recess.

  According to the means 1, the groove portion is formed on the outer peripheral side of the root portion of the locking portion, which is a connecting portion between the extending wall portion and the locking portion, so that the base portion of the locking portion is thinned. ing. Thereby, even when the locking portion is formed integrally with the extending wall portion, the portion where the thickness of the extending wall portion becomes thick can be reduced as much as possible. As a result, the influence on the design surface of the extended wall portion such as the occurrence of sink marks is suppressed, and the appearance quality is improved.

  Further, in a state where the edge portion of the corner portion of the interior member is fitted in the fitting recess, the head portion of the locking portion is tilted by a predetermined amount and is in contact with the extending wall portion. Thereby, even if stress is applied to the locking portion, deformation of the locking portion (tilt of the head) is restricted, so that a problem that the locking portion is detached from the interior member is reduced, and the locking state is reduced. Stabilization is achieved. In addition, by adopting such a configuration, it is possible to compensate for a decrease in the rigidity of the locking portion due to the thinning of the root portion, so that the locking portion can be reduced while reducing the thickness of the root portion of the locking portion. It is possible to suppress a decrease in the holding force due to. As a result, it is possible to suppress the rising of the extended wall portion at the corner portion of the glass run and to improve the appearance quality.

  Mean 2. The glass run, wherein a thickness of a base portion of the locking portion is set smaller than a thickness of the extending wall portion.

  According to the said means 2, the said effect is show | played more reliably.

  Means 3. The glass run, wherein a width of the groove is set to be equal to or less than a dimensional difference between a thickness of an edge portion of a corner portion of the interior member and a width of the fitting recess.

  According to the means 3, when the edge of the corner portion of the interior member is fitted into the fitting recess, the head of the locking portion tilts more reliably when the head of the locking portion tilts. It will be in the state contact | abutted.

  Means 4. A tapered surface is formed on the head of the locking portion to guide the end edge to the fitting recess when the edge of the corner portion of the interior member is fitted into the fitting recess. A glass run characterized by

  Since the fitting recess is formed narrower than the thickness of the edge portion of the corner portion of the interior member, there is a possibility that the edge portion is not easily fitted into the fitting recess. By providing a tapered surface on the head of the locking portion, it becomes easy to perform the fitting operation.

  Means 5. The glass run according to claim 1, wherein the locking portion is partially provided in a predetermined circumferential section of the mold forming portion.

  When the locking part is provided in the entire circumferential direction of the mold forming part, the head of the locking part may not be easily tilted. If it provides in part, compared with the case where a latching | locking part is provided in the circumferential direction whole region, generation | occurrence | production of the said malfunction can be reduced. In addition, it is relatively easy to pull out from the mold during manufacturing, and as a result, it is possible to suppress an increase in production cost, an increase in work man-hours, a decrease in productivity, and the like.

  Means 6. The said latching | locking part is continuously formed with respect to the range of 20-50% of the length of the circumferential direction of the inner peripheral side edge of the said extension wall part, The glass characterized by the above-mentioned. run.

  By setting the formation range of the locking portion as described in the means 6, the inner peripheral side edge portion of the extending wall portion is deformed when attached to the sash portion, and the locking portion and the interior member It is possible to more reliably suppress a situation in which the state of engagement with the end edge portion is unstable or the appearance quality is deteriorated. Moreover, since the cross-sectional area including a latching | locking part becomes large about the site | part in which the latching | locking part exists among the inner peripheral side edge parts of an extension wall part, the rigidity of the said part will be improved. That is, according to the means 6, not only the range locked to the end edge of the interior member is widened, but also the range in which the rigidity of the inner peripheral side edge of the extending wall is increased is widened. is there. Therefore, the effect of suppressing deformation of the inner peripheral side edge portion of the extending wall portion is more reliably achieved.

  In addition, since the locking portion is formed continuously, for example, when the locking portion is formed intermittently, deformation stress acts intensively on the portion where the locking portion is not formed. And the situation where the inner peripheral side edge part of an extension wall part will deform | transform can be prevented.

  In addition, since the effect of suppressing the deformation | transformation of the inner peripheral side edge part of an extension wall part is show | played only by having a latching | locking part, as described in the said means 6, a latching | locking part is provided. In the case where it is continuously provided in a relatively wide range of 20% to 50% of the circumferential length of the inner circumferential side edge of the extending wall portion, the locking portion is provided in the circumferential direction of the extending wall portion. Even if only a part of the inner wall member is locked to the edge portion of the interior member, the effect of suppressing the deformation of the inner peripheral side edge portion of the extending wall portion is sufficiently exhibited.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, an automobile door D (a front door in the figure: hereinafter simply referred to as “door”) as a vehicle door is provided with a glass run 1 that seals the peripheral edge of a door glass G that moves up and down. Yes.

  Further, as shown in FIG. 4, a garnish 3 as an interior member is attached along the door frame 2 on the inner side of the door frame 2. In particular, at the rear upper corner of the door frame 2, at least a part of the garnish 3 is located at an inner peripheral position (lower side in FIG. 4) than the door frame 2 so as to cover the peripheral edge of the door opening on the automobile body side. ). More specifically, the garnish 3 includes a side wall portion 4 disposed substantially in parallel with the door glass G at a portion corresponding to the rear upper corner portion of the door frame 2, and an inner peripheral side end portion of the side wall portion 4. An inner wall 5 extending from the (lower side in FIG. 4) toward the vehicle outer side (left side in FIG. 4), an outer wall 6 extending from the corner portion outer peripheral side end (upper side in FIG. 4) of the side wall 4 toward the vehicle outer side, The inner wall portion 5 includes a bent portion 7 formed by bending the outer edge of the vehicle. In addition, the bending part 7 is partially provided so that it may correspond to the latching | locking part 25 of the glass run 1 mentioned later.

  On the other hand, as shown in FIG. 1, the glass run 1 has an extrusion molding portion 10 corresponding to the upper side portion in the longitudinal direction, extrusion molding portions 11 and 12 corresponding to the front and rear vertical side portions, and each extrusion molding portion 10. , 11 and 10 and 12 are formed from mold forming parts 13 and 14 (parts provided with a dotted pattern in FIG. 1) for connecting the end parts. Extrusion molding parts 10-12 are formed in the shape of a straight line with the extrusion molding machine which is not illustrated. In addition, the mold forming sections 13 and 14 are connected and molded by a mold apparatus (not shown) so that the two extrusion molded sections 10 and 11 and the extrusion molded sections 10 and 12 are connected to each other at a predetermined angle. Is done. In the present embodiment, the extrusion molded portions 10 to 12 are formed of EPDM (ethylene-propylene-diene copolymer) solid rubber, and the molded portions 13 and 14 are formed of an olefinic thermoplastic elastomer (TPO). Yes.

  More specifically, as shown in FIG. 2, the glass run 1 is attached to a sash 15 provided on the inner peripheral side of the door frame 2, and extends from the base portion 16 and both ends of the base portion 16. A body portion 20 having a substantially U-shaped cross section comprising a portion 17 and a vehicle outer side wall portion 18, and extending from the front ends of the vehicle inner side wall portion 17 and the vehicle outer side wall portion 18 to the inside of the main body portion 20, and between the door glass G And a pair of sealing lips 21 and 22 for sealing.

  Further, in the vicinity of the rear upper corner portion of the glass run 1 corresponding to the rear upper corner portion of the door frame 2, as shown in FIGS. An extension wall portion 24 that extends to the side, and a projection that protrudes toward the inside of the vehicle in the vicinity of the inner peripheral side edge of the extension wall portion 24 and is engaged with the bent portion 7 of the garnish 3. And a stop portion 25. However, the locking part 25 is provided in the circumferential predetermined section L around the bisector T of the corner formed by the corner part of the molding part 14. In the present embodiment, the size of the predetermined section L is set to one third of the length in the circumferential direction.

  As shown in FIG. 5, the locking portion 25 is formed integrally with the extending wall portion 24, and is formed on the root portion 27 corresponding to the connecting portion with the extending wall portion 24 and on the inner side of the root portion 27. And a head 28 having a substantially triangular cross section. The root portion 27 is thinner and narrower than the head portion 28, and in the present embodiment, the thickness W1 is set to 1.0 mm. On the other hand, the thickness W2 of the general portion of the extending wall portion 24 connected to the root portion 27 is set to 2.2 mm in order to ensure a predetermined rigidity.

  By forming the root portion 27 of the locking portion 25 in a constricted shape, the inner peripheral side edge portion 24a of the extending wall portion 24 and the locking portion are provided on the inner peripheral side (lower side in FIG. 5) of the root portion 27. A fitting recess 30 is formed between the inner peripheral edge 28a of the 25 heads 28. And when the glass run 1 is assembled | attached to the door frame 2, the bending part 7 of the garnish 3 is engage | inserted by this insertion recessed part 30, as shown in FIG. However, the width W3 of the opening of the fitting recess 30 is set to be smaller than the thickness W4 of the bent portion 7 fitted therein.

  On the other hand, on the outer peripheral side (upper side in FIG. 5) of the root portion 27, a groove portion 31 is formed between the general portion of the extending wall portion 24 and the outer peripheral side edge portion 28 b of the head portion 28 of the locking portion 25. . In the present embodiment, the width W5 of the groove portion 31 is set to 1.0 mm, which is the same as the thickness W1 of the root portion 27. By forming the groove portion 31, the head portion 28 of the locking portion 25 can tilt to the outer peripheral side. When the glass run 1 is assembled, as shown in FIG. 6, the bent portion 7 of the garnish 3 is fitted into the fitting recess 30 formed narrower than its own thickness W4. The recessed portion 30 is pushed and widened, the head portion 28 of the locking portion 25 is tilted to the outer peripheral side, and the outer peripheral side edge portion 28 b of the head portion 28 is in contact with the extended wall portion 24.

  In order to make it easy to fit the bent portion 7 of the garnish 3 into the fitting recess 30 formed narrower than its own thickness W4, the head portion 28 of the locking portion 25 is tapered toward the inner peripheral side thereof. A surface 33 is formed. Furthermore, in order to enhance the effect, in the present embodiment, the width W6 is set to a relatively large value of 4.0 mm.

  As described in detail above, in the present embodiment, the groove portion 31 is formed on the outer peripheral side of the root portion 27 of the locking portion 25 that is a connecting portion between the extending wall portion 24 and the locking portion 25, thereby The base portion 27 of the stop portion 25 is thinned. Thereby, even when the latching | locking part 25 is integrally formed in the extension wall part 24, the site | part where the thickness of the said extension wall part 24 becomes thick can be decreased as much as possible. As a result, the influence on the design surface of the extended wall portion 24 such as the occurrence of sink marks is suppressed, and the appearance quality is improved.

  Further, when the bent portion 7 of the garnish 3 is fitted in the fitting recess 30, the head portion 28 of the locking portion 25 tilts by a predetermined amount and comes into contact with the extending wall portion 24, and extends. The bent portion 7 is sandwiched between the wall portion 24 and the locking portion 25. As a result, even if stress is applied to the locking part 25, deformation of the locking part 25 (tilt of the head 28) is restricted, so that the locking part 25 comes off from the bent part 7 of the garnish 3. Problems are also reduced and the locked state is stabilized. By adopting such a configuration, it is possible to compensate for a decrease in the rigidity of the locking portion 25 due to the thinning of the root portion 27. Therefore, while the thickness of the root portion 27 of the locking portion 25 is reduced, A decrease in holding force due to the stop portion 25 can be suppressed. As a result, it is possible to suppress the rising of the extended wall portion 24 and improve the appearance quality.

  Furthermore, since the locking part 25 is partially provided only in the circumferential predetermined section L with the corner bisector T formed by the corner part of the molding part 14 as the center, the locking part 25 is Compared with the case where it is provided in the entire circumferential direction, it is possible to reduce the possibility that the head portion 28 of the locking portion 25 is difficult to tilt. In addition, it is easy to extract from the mold at the time of manufacturing, and as a result, it is possible to suppress an increase in production cost, an increase in work man-hours, a decrease in productivity, and the like.

  Further, the width W5 of the groove portion 31 is set to 1.0 mm, which is the same as the thickness W1 of the root portion 27. For this reason, the head portion 28 of the locking portion 25 is relatively easy to tilt, and it is easy to perform the work of fitting the bent portion 7 of the garnish 3 into the fitting recess 30 and is necessary for forming the groove portion 31. The strength of the mold can be secured.

  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, EPDM rubber is adopted as the material of the extrusion molding parts 10 to 12, but not limited to this, other rubber materials such as styrene butadiene rubber, butadiene rubber, and chloroprene rubber are adopted. Also good. Alternatively, in addition to the rubber material, a resin material such as TPO or soft polyvinyl chloride (PVC) may be employed. On the other hand, TPO is adopted as the material of the molded parts 13 and 14, but is not limited to this, and other thermoplastic resin materials such as PVC may be adopted.

  (B) In the above embodiment, the thickness W1 of the root portion 27 of the locking portion 25 is set to 1.0 mm, and the thickness W2 of the general portion of the extending wall portion 24 connected to the base portion 27 is set to 2.2 mm. The thicknesses W1 and W2 of both are not limited to this. However, in order to obtain the effects of the above-described embodiment more reliably, at least the thickness W1 of the root portion 27 of the locking portion 25 is set to be smaller than the thickness W2 of the general portion of the extending wall portion 24. preferable.

  (C) In the above embodiment, the width W5 of the groove portion 31 is set to 1.0 mm, which is the same as the thickness W1 of the root portion 27 of the locking portion 25, but the width W5 of the groove portion 31 is not limited to this. Absent. For example, the width W5 of the groove 31 is preferably set to be equal to or less than the dimensional difference between the thickness W4 of the bent portion 7 of the garnish 3 and the width W3 of the opening of the fitting recess 30. In this way, when the bent portion 7 of the garnish 3 is fitted into the fitting recess 30 and the head portion 28 of the locking portion 25 is tilted, the outer peripheral side of the head portion 28 of the locking portion 25 is more reliably provided. The end edge portion 28b comes into contact with the extended wall portion 24.

  (D) In the said embodiment, although the head 28 of the latching | locking part 25 becomes cross-sectional substantially triangular shape, the shape of the head 28 is not limited to this. However, in order to obtain the operational effects of the above-described embodiment more reliably, a tapered surface 33 that guides the bent portion 7 of the garnish 3 to the fitting recess 30 is formed on the head portion 28 of the locking portion 25. It is preferable.

  (E) In the above embodiment, the locking portion 25 is provided in the circumferential predetermined section L around the bisector T of the corner formed by the corner portion of the mold forming portion 14. However, the position at which is formed is not limited to this. For example, the size of the predetermined section L may be set in a range of 20% to 10% of the circumferential length. By setting the predetermined section L in this way, the effect of preventing the corner portion from being lifted can be reliably achieved. Moreover, since the cross-sectional area including the latching | locking part 25 becomes large regarding the site | part in which the latching | locking part 25 exists among the inner peripheral side edge parts of the extension wall part 24, the rigidity of the said part is improved. Become. That is, by setting the formation range of the locking portion 25 wide, not only the range locked to the bent portion 7 of the garnish 3 is widened, but also the inner peripheral side edge of the extending wall portion 24. The range in which the rigidity can be increased is widened. Therefore, the effect of suppressing the deformation of the inner peripheral side edge portion of the extending wall portion 24 is more reliably achieved.

  Moreover, it is good also as a structure by which the latching | locking part 25 was provided intermittently with respect to the circumferential direction. However, the locking portion 25 is desirably formed continuously along the inner peripheral side edge of the extending wall portion 24. When the said structure is employ | adopted, the situation where a deformation stress acts intensively with respect to the site | part in which the latching | locking part 25 is not provided, and the inner peripheral side edge part of the extension wall part 24 will deform | transform. Can be prevented.

  In addition, since the effect of suppressing the deformation of the inner peripheral side edge portion of the extension wall portion 24 can be achieved only by the presence of the locking portion 25, the locking portion 25 is extended as described above. In the case where it is continuously provided in a relatively wide range such as 20% to 50% of the circumferential length of the inner peripheral side edge of the exit wall 24, it is locked in the circumferential direction of the extension wall 24. Even if a part of the portion 25 is only locked to the bent portion 7 of the garnish 3, the effect of suppressing the deformation of the inner peripheral side edge portion of the extending wall portion 24 is sufficiently exhibited. .

It is a front view which shows a motor vehicle door. It is the JJ sectional view taken on the line of FIG. 1 which shows a glass run. It is the elements on larger scale around the corner part of a glass run. It is the KK sectional view taken on the line of FIG. 3 which shows a shaping | molding part. It is the elements on larger scale around the front-end | tip part of the extension wall part before a garnish assembly | attachment. It is the elements on larger scale around the front-end | tip part of the extension wall part after a garnish assembly | attachment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Glass run, 2 ... Door frame, 3 ... Garnish, 7 ... Bending part, 14 ... Molding part, 20 ... Main-body part, 24 ... Extension wall part, 25 ... Locking part, 27 ... Root part, 28 DESCRIPTION OF SYMBOLS ... Head part, 30 ... Insertion recessed part, 31 ... Groove part, D ... Automobile door, G ... Door glass, W1 ... Thickness of a root part, W2 ... Thickness of the general part of an extension wall part.

Claims (6)

It has a door glass that moves up and down, and an interior member is attached along the inside of the door frame. At least a part of the interior member is arranged at an inner peripheral position than the door frame at least at a predetermined corner portion of the door frame. A glass run attached to a vehicle door to be installed,
In a molded part molded by a thermoplastic resin material corresponding to a predetermined corner part of the door frame,
A body portion attached to the sash provided on the inner peripheral side of the door frame, and having a substantially U-shaped cross section comprising a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion extending from both ends of the base portion;
A pair of seal lips extending from the front end of the vehicle inner side wall and the vehicle outer side wall to the inside of the main body and sealing with the door glass,
An extending wall formed to extend from the front end of the vehicle interior side wall to the inner peripheral side of the corner,
A locking portion that is formed to protrude toward the vehicle inner side in the vicinity of the inner peripheral side edge of the extending wall, and is locked to the edge of the corner of the interior member;
Formed by an inner peripheral side edge of the extension wall and the locking portion, and an insertion recess into which an edge of a corner portion of the interior member is fitted,
The insertion recess is set so that its width is smaller than the thickness of the edge of the corner portion of the interior member,
The locking portion is configured such that a groove portion is formed on the outer peripheral side of the base portion so that the head portion can be tilted to the outer peripheral side, and the edge portion of the corner portion of the interior member is fitted into the fitting portion. The glass run, wherein the head is tilted by a predetermined amount and is in contact with the extended wall portion when fitted in the recess.   The glass run according to claim 1, wherein a thickness of a root portion of the locking portion is set smaller than a thickness of the extending wall portion.   3. The glass run according to claim 1, wherein a width of the groove is set to be equal to or less than a dimensional difference between a thickness of an edge of a corner of the interior member and a width of the fitting recess. .   A tapered surface is formed on the head of the locking portion to guide the end edge to the fitting recess when the edge of the corner portion of the interior member is fitted into the fitting recess. 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 locking portion is partially provided in a predetermined circumferential section of the mold forming portion.   The locking portion is formed continuously with respect to a range of 20% to 50% of the circumferential length of the inner peripheral edge of the extended wall portion. Item 5. The glass run according to any one of Items 1 to 4.

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