JP2011111106A - Glass run and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run preventing a reduction in slidability of door glass while improving an appearance quality, and to provide a method of manufacturing the same. <P>SOLUTION: The glass run 5 includes a body part 11 including a base part 14 and a pair of side wall parts 15, 16 extended from the base part 14, and formed substantially in a U-shape in cross section, seal lips 12, 13 extended to the inside of the body part 11 from the respective front ends of the side wall parts 15, 16, and a connection part 21 formed substantially in a V-shape in cross section to be protruded to the inner peripheral side of the body part 11 when molded at a position on a vehicle inner side relative to the inner side surface of the door glass G of the base part 14, and the whole area in a longitudinal direction is formed integrally by molding. The connection part 21 includes a first variable part 21a positioned near the door glass G, and a second variable part 21b positioned far, and is formed continuously across the whole area in the longitudinal direction of the glass run 5. Moreover, the first variable part 21a and the second variable part 21b are fixed with their surfaces contacting with each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a glass run and a method for producing the same.

  Generally, a glass run is provided along the inner periphery of a door frame of an automobile. When viewed from the cross-sectional direction, the glass run is provided with a substantially U-shaped main body portion including a base portion, a vehicle inner side wall portion and a vehicle outer side wall portion extending from the base portion, and substantially tip ends of both side wall portions. The vehicle interior seal lip and the vehicle exterior seal lip extending from the vehicle body toward the inside of the main body. The glass run is sealed so that the body portion is attached to a mounting portion provided along the inner periphery of the door frame, and the peripheral portions of the inner and outer surfaces of the door glass moving up and down are sandwiched by both seal lips. .

  The glass run includes an upper side corresponding to the upper edge of the door glass, and a front vertical side and a rear vertical side corresponding to the front and rear vertical edges of the door glass, which are formed in a substantially linear shape. And the mold forming part that connects the ends of the extruded part at a predetermined angle.

  By the way, when the glass run is composed of an extrusion molding part and a molding part, the connecting line between the extrusion molding part and the molding part appears on the appearance, and this may lead to a decrease in appearance quality. There is. In addition, the composition material may be different between the extrusion molding part and the mold molding part, and there is a risk that the surface color and gloss will be greatly different. There is a risk of being invited.

  In addition, the mold forming part corresponding to the corner part of the glass run needs to contain a mold (core) for forming each inner surface of the main body part, the vehicle interior seal lip, and the vehicle exterior seal lip at the time of mold forming. In general, in order to maintain the holding strength of the core, the inner side wall portion and the outer side wall portion of the vehicle are generally formed in an unfolded shape. However, when the vehicle interior side wall portion and the vehicle exterior side wall portion are deformed so as to be narrowed at the time of attachment to the attachment portion, the bending angle (curvature radius), circumference, etc. of the corner portion are based on the stress at that time. May change. In this case, the glass run may not follow the shape of the attachment portion, which may cause deterioration of the attachment state.

  On the other hand, the base portion is provided with a connecting portion that can be expanded and contracted in the vehicle interior / exterior direction, and the whole lengthwise direction is integrally formed by molding while the connecting portion is extended. A glass run is also proposed in which the glass is shrunk (see, for example, Patent Document 1).

JP 2008-149739

  By adopting the technique of Patent Document 1, it is possible to avoid a situation in which a difference in color / gloss partially occurs in the longitudinal direction of the glass run, or that the glass run needs to be developed. However, when the connecting part protrudes from the base part to the inner peripheral side of the main body part, there is a concern that the connecting part comes into contact with the door glass, and there is a risk of causing problems such as reducing the sliding property of the door glass. is there.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a glass run and a method for manufacturing the same that can reliably prevent a decrease in the slidability of the door glass while 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 the means to respond | correspond as needed are added.

Means 1. It has a base portion, a vehicle inner side wall portion and a vehicle outer side wall portion extending from the base portion, has a substantially U-shaped cross section, and is attached to a mounting portion provided along the inner periphery of the vehicle door frame. Main body
A vehicle inner seal lip and a vehicle outer seal lip extending inward of the main body from substantially the front ends of the vehicle inner side wall and the vehicle outer side wall,
It is formed at a position deviating from the facing part of the end face of the door glass in the base part, and at the time of molding, it is provided with a connecting part formed in a substantially V-shaped cross section that is convex on the inner peripheral side of the main body part,
The entire longitudinal direction including the upper side corresponding to the upper edge of the door glass that moves up and down and the front vertical side and rear vertical side corresponding to the front edge and rear edge of the door glass is integrated by molding. Formed into
The connecting portion is composed of a first variable portion located near the opposite portion of the end face of the door glass in the base portion and a second variable portion located far away, and is continuous over the entire longitudinal direction of the main body portion. The glass run is characterized in that the first variable portion and the second variable portion are fixed in contact with each other on the surface.

  According to the means 1, since the entire longitudinal direction of the glass run is integrally formed by molding, for example, a glass run configured by connecting a plurality of molded bodies including an extruded molded body in the longitudinal direction, and In contrast, it is possible to avoid a situation in which a connecting line connecting adjacent molded bodies appears in the appearance. In addition, it is possible to avoid a situation in which a difference in color / gloss partially occurs in the longitudinal direction of the glass run. As a result, the appearance quality is improved.

  Further, by molding the glass run in a shape in which the connecting portion is extended, both the seal lips can be sufficiently separated. For this reason, it is not necessary to set it as the expansion | deployment shape that the front-end | tip of a vehicle inner side wall part and a vehicle outer side wall part spread widely. Accordingly, since it is not necessary to greatly change the cross-sectional shape when attaching to the attachment portion, it is possible to stabilize the attachment state of the glass run to the attachment portion, improve the sealing performance, and the like.

  Furthermore, since the glass run is integrally formed (the base portion, the vehicle inner side wall portion, the vehicle outer side wall portion, the vehicle inner side seal lip, the vehicle outer side seal lip, etc. are formed together through the connecting portion), It is possible to simplify the entire manufacturing facility and improve manufacturing workability. As a result, it is possible to reduce costs and improve productivity. In particular, since the connecting portion is formed in the entire longitudinal direction of the glass run, for example, compared to the configuration described in JP 2008-149739 in which the connecting portion is partially provided in the longitudinal direction of the glass run. When filling the mold cavity with the constituent material, the constituent material is easily spread over the entire cavity. For this reason, improvement of manufacturing workability (shortening of manufacturing time), suppression of molding defects, simplification of a mold apparatus, and the like can be achieved.

  In addition, the connection part is provided in the position remove | deviated from the opposing site | part of the end surface of the door glass in a base part. For this reason, for example, when the connecting portion protrudes from the base portion toward the inner peripheral side of the main body portion, the resistance when the door glass slides increases due to the connecting portion coming into contact with the door glass. It is possible to prevent the risk of inconvenience.

  Moreover, since it cannot attach to an attachment part in the state which a connection part extended, it is necessary to maintain the contraction state of a connection part at the time of attachment to an attachment part, but if a connection part is contracted, the repulsive force by a connection part will arise. Therefore, there is a possibility that the attachment work is relatively difficult. Furthermore, in the state where the base portion is inserted into the attachment portion, it is necessary to release the hand from the base portion, so there is a concern that the connecting portion may be extended and caught on the periphery of the opening portion of the attachment portion, making it difficult to push. On the other hand, according to this means, the 1st variable part and the 2nd variable part which comprise a connection part are mutually fixed. For this reason, the said malfunction can be avoided and the improvement of attachment workability | operativity can be aimed at.

  In addition, since the first variable portion and the second variable portion are fixed to each other, when the glass run is pushed into the mounting portion, the portion on the vehicle inner side wall portion and the portion on the vehicle outer side wall portion side Can be prevented from shifting in the outer peripheral direction of the door glass. Accordingly, it is possible to improve the mounting workability and to attach the glass run to the mounting portion accurately.

  Further, if the base portion is simply squeezed and the connecting portion is contracted, the connecting portion swells so that a hollow portion is formed inside the connecting portion, which may hinder sliding of the door glass. On the other hand, in this means, since the 1st variable part and the 2nd variable part are mutually fixed, the said malfunction can be suppressed. Therefore, it is possible to suppress the risk that the connecting portion comes into contact with the door glass and reduces the sliding property of the door glass.

  Furthermore, for example, when the connecting portion is partially provided in the longitudinal direction of the glass run, in a state where the connecting portion is contracted, the connecting portion is caused by the thickness of the connecting portion or the repulsive force of the connecting portion. There is a possibility that the width of the base portion changes between the existing portion and the non-existing portion (the amount of contraction of the base portion toward the inside and outside of the vehicle changes). On the other hand, according to this means, the connection part is provided in the whole longitudinal direction of the glass run (main body part). For this reason, the lateral width of the base portion can be made substantially uniform throughout the entire length of the glass run, and the attachment state can be stabilized.

  “When molding, the base portion and the connecting portion are integrally formed in an elongated shape, and the connecting portion is contracted, and the first variable portion and the second variable portion are formed. It is good also as attaching to the said attachment part in the state to which the part was fixed. Examples of the fixing method include adhesion using an adhesive, and thermal welding, ultrasonic welding, and the like when the glass run is composed of a dynamically crosslinked olefinic thermoplastic elastomer (TPV). In addition, the "opposite part of the end face of the door glass in the base part" is a position along the inner surface of the door glass from the position of the base part intersecting with the extension line along the outer side face of the door glass. This is the section up to the position that intersects the extension line.

  Mean 2. The glass run according to means 1, wherein the entire surfaces of the first variable portion and the second variable portion facing each other are fixed.

  According to the means 2, the first variable portion and the second variable portion are partially separated (a hollow portion is formed) in a state where the substantially V-shaped connecting portion is contracted (folded). It is possible to prevent a situation in which the connecting portion swells. Accordingly, it is possible to more reliably prevent problems such as the connecting portion coming into contact with the door glass and the sliding performance of the door glass being lowered. It should be noted that “the first variable portion and the second variable portion are formed in a substantially linear shape”.

Means 3. The first variable portion and the second variable portion are formed in a substantially linear shape,
A groove portion is formed along the boundary between the first variable portion and the second variable portion on the inferior angle side of the connecting portion, and the first variable portion and the second variable portion are formed by the groove portion. The glass run according to means 1 or 2, characterized in that the thickness in the vicinity of the boundary with the portion is thinner than other portions.

  According to the means 3, the front end portion side (near the boundary portion between the first variable portion and the second variable portion) of the connecting portion swells by contracting (folding) the substantially V-shaped connecting portion. Can be prevented. Accordingly, it is possible to more reliably prevent problems such as the connecting portion coming into contact with the door glass and the sliding performance of the door glass being lowered.

  Means 4. The base portion includes a vehicle outer base portion and a vehicle inner base portion connected by the connecting portion, and the first variable portion and the vehicle from the mutually opposing surfaces of the vehicle outer base portion and the vehicle inner base portion. Each of the second variable portions extends, and in the fixed state of the first variable portion and the second variable portion, surfaces of the vehicle outer base portion and the vehicle inner base portion that face each other, and the first variable portion The glass run according to any one of means 1 to 3, wherein the second variable portion is in contact with or substantially in contact with the second variable portion.

  According to the means 4, in the fixed state of the first variable portion and the second variable portion (the contracted state of the connecting portion), the mutually facing surfaces of the vehicle outer base portion and the vehicle inner base portion, the first variable portion, The second variable portion abuts or substantially abuts. For this reason, even if the connecting portion tries to tilt when the connecting portion is contracted, the side surfaces of the first variable portion and the second variable portion are in contact with the opposite surfaces of the vehicle outer base portion and the vehicle inner base portion. Tilt is prevented. Therefore, contact between the connecting portion and the door glass can be reliably prevented.

Means 5. A method for producing a glass run according to any one of the above means 1 to 4,
After molding, the entire length of the connecting part is integrally formed with the shape in which the connecting part extends in the vehicle interior / exterior direction, and then the first variable part and the second variable part are fixed to each other in a state where they are in contact with each other. A method for producing a glass run.

  According to the means 5, the glass run in which the effect of each said means is show | played can be obtained reliably. That is, by molding the glass run in a shape in which the connecting portion is elongated, it is possible to suitably perform molding, and after the molding, the connecting portion is contracted to fix the first variable portion and the second variable portion. By doing so, it is possible to improve the mounting workability.

  Means 6. It is molded so that the position of the root portion of the first variable portion and the position of the root portion of the second variable portion in the vehicle interior / external direction are the same in any part in the longitudinal direction of the glass run. The method for producing a glass run according to the means 5 characterized by the above.

  According to the means 6, when the connecting portion is contracted, the first variable portion and the second variable portion are partially separated in the longitudinal direction of the glass run, or the connecting portion is uneven. Such a situation can be prevented.

  Mean 7 The first variable portion and the second variable portion are formed in a substantially linear shape, and hold both side portions of the base portion when the first variable portion and the second variable portion are fixed to each other. A method for producing a glass run according to means 5 or 6.

  According to the means 7, the first variable portion and the second variable portion are linearly formed, and the connecting portion is contracted so that the first variable portion and the second variable portion are not held between the first variable portion and the second variable portion. The first variable portion and the second variable portion can be brought into contact with each other on the surface. Accordingly, it is only necessary to hold the first variable portion and the second variable portion so that both sides of the base portion are sandwiched between the first variable portion and the second variable portion, and workability can be improved. Note that the configuration of the means 3 (a groove portion is formed along the boundary between the first variable portion and the second variable portion on the inferior angle side of the connecting portion, and the groove portion When the first variable portion and the second variable portion are thinner than the other portions, the first variable portion and the second variable portion are more reliably contracted by contracting the connecting portion. The two variable parts can be brought into contact with each other on the surface, and the function and effect of the means 7 can be achieved more reliably.

It is a front schematic diagram which shows schematic structure of a door. It is a front view of a glass run. It is the JJ sectional view taken on the line of FIG. 2 which shows the glass run after attachment. It is the JJ sectional view taken on the line of FIG. 2 which shows the glass run immediately after mold forming. It is the KK sectional view taken on the line of FIG. 2 which shows the glass run after attachment. It is the KK sectional view taken on the line of FIG. 2 which shows the glass run immediately after mold forming. It is the LL sectional view taken on the line of FIG. 2 which shows the glass run after attachment. It is the LL sectional view taken on the line of FIG. 2 which shows the glass run immediately after mold forming. It is the MM sectional view taken on the line of FIG. 2 which shows a glass run. It is the NN sectional view taken on the line of FIG. 2 which shows a glass run. It is the OO sectional view taken on the line of FIG. 2 which shows a glass run. It is the PP sectional view taken on the line of FIG. 2 which shows a glass run.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, a front door (hereinafter simply referred to as “door 1”) that can be opened and closed at an opening for a door of an automobile includes a door glass G that can be raised and lowered, and an outer peripheral shape of the door glass G. And a glass run 5 that guides the raising and lowering of the door glass G and seals between the peripheral edge of the door glass G and the door frame 2.

  As shown in FIG. 2, the glass run 5 is formed on the upper side portion 6 corresponding to the upper edge portion of the door glass G, the front vertical side portion 7 corresponding to the front edge portion of the door glass G, and the rear edge portion of the door glass G. A corresponding rear vertical side portion 8 is formed. In this embodiment, the glass run 5 is integrally formed in the entire length direction including the upper side portion 6, the front vertical side portion 7, and the rear vertical side portion 8 by a mold apparatus (not shown). Then, a sash portion DS having a substantially U-shaped cross section formed along the outer periphery of the window portion W, and a cross section provided in the door panel 3 so as to extend downward in the longitudinal sides before and after the sash portion DS. The glass run 5 is attached to the inner periphery of the U-shaped channel portion DC. In this embodiment, the glass run 5 is comprised by the dynamic bridge | crosslinking type olefin type thermoplastic elastomer (TPV). In the present embodiment, the sash part DS and the channel part DC correspond to the attachment part.

  As shown in FIG. 3, the upper side portion 6 corresponding to the upper edge portion of the door glass G includes a base portion 14, a vehicle outer side wall portion 15 and a vehicle inner side wall portion 16 extending from the base portion 14. A body portion 11 that is substantially U-shaped and is fitted into the sash portion DS, a vehicle outer side seal lip 12 that extends from the tip of the vehicle outer side wall portion 15 toward the vehicle inner side and the base portion 14 side, and a vehicle inner side wall portion 16. And a vehicle inner side seal lip 13 extending toward the vehicle outer side and the base portion 14 side.

  In a state where the window W is closed by the door glass G, the vehicle outer side seal lip 12 is pressed against the outer side surface (vehicle outer side surface) of the door glass G, and the vehicle inner side seal lip 13 is in contact with the inner side of the door glass G. It is in pressure contact with the side surface (surface inside the vehicle). Thereby, the vehicle exterior side and vehicle interior side of the door glass G are each sealed.

  Further, an exterior design lip 17 extending from the exterior side wall 15 toward the exterior of the vehicle and an interior design lip 18 extending from the interior side wall 16 toward the interior of the vehicle are provided. Further, a draining lip 19 that protrudes from the base portion 14 is provided at a vehicle outer side portion of the outer side surface of the base portion 14 (surface on the outer peripheral side of the main body portion 11). The draining lip 19 abuts against the sash portion DS when the glass run 5 is attached, and prevents rainwater and the like from entering the inside of the vehicle through the space between the glass run 5 and the sash portion DS. The vehicle exterior seal lip 12 is smaller (shorter) than the vehicle interior seal lip 13. As a result, the door glass G is brought to the outside of the vehicle and flash surface formation is achieved.

  In the present embodiment, the base portion 14 has a connecting portion 21 formed so that the lateral width of the base portion 14 can be changed between when the mold is molded and when the base portion 14 is attached to the sash portion DS and the channel portion DC. Is provided. The base portion 14 of the present embodiment is divided into a vehicle outer side portion (vehicle outer base portion 14a) and a vehicle inner side portion (vehicle inner base portion 14b) with the connecting portion 21 interposed therebetween. The first variable portion 21a extending from the vehicle inner end surface of the vehicle outer base portion 14a to the inner peripheral side of the main body portion 11, and the first variable portion 21a extending from the vehicle outer end surface of the vehicle inner base portion 14b to the tip edge of the first variable portion 21a. 2 variable part 21b. As shown in FIG. 4, the connecting portion 21 is formed by molding to have a substantially V-shaped cross section that protrudes toward the inner peripheral side of the main body portion 11. ). Moreover, the connection part 21 of this embodiment is a vehicle inner side (extension line along the inner side surface of the door glass G among the base parts 14 so that it may not interfere with the raising / lowering of the door glass G). The connecting portion 21 is configured not to contact the door glass G that has entered the inside of the main body portion 11.

  Further, the first variable portion 21a and the second variable portion 21b extend substantially linearly, and as shown in FIG. 3, when the connecting portion 21 is contracted (folded), the first variable portion 21a and the second variable portion 21b 2 The variable portion 21b is in contact with the surface, and the connecting portion 21 is linear along the inner side surface (vehicle outer surface) of the vehicle inner side wall portion 16 (almost with respect to the inner side surface of the base portion 14). (Vertically). Furthermore, in this embodiment, the 1st variable part 21a and the 2nd variable part 21b are extended from the site | part of the outer peripheral side of the main-body part 11 of the mutually opposing surface among the vehicle outer base part 14a and the vehicle inner base part 14b. In a state where the connecting portion 21 is contracted, the base side portions of the first variable portion 21a and the second variable portion 21b are sandwiched between the vehicle outer base portion 14a and the vehicle inner base portion 14b. .

  In this embodiment, the glass run 5 including the main body 11, the seal lips 12, 13 and the like is integrally molded in a shape in which the connecting portion 21 extends in the vehicle interior / exterior direction. The variable portion 21a and the second variable portion 21b are bonded to each other with an adhesive in a state where the variable portion 21a and the second variable portion 21b are in contact with each other. That is, at the time of molding, the connecting portion 21 is extended and the vehicle outer base portion 14a and the vehicle inner base portion 14b are separated from each other. In the subsequent steps, the first variable portion 21a and the second variable portion 21b are formed. Are fixed to each other, the contracted state of the connecting portion 21 is maintained, and a shape that can be inserted inside the sash portion DS is obtained. In the present embodiment, the adhesive is applied to the entire surfaces of the first variable portion 21a and the second variable portion 21b that face each other, and the entire surfaces of the first variable portion 21a and the second variable portion 21b that face each other. It is glued.

  Moreover, the thickness of the 1st variable part 21a and the 2nd variable part 21b is thinner than other parts (vehicle exterior base part 14a etc.), and is 1.0 mm in this embodiment, respectively. . Furthermore, as shown in FIG. 4, a groove-like portion 24 is formed along the boundary between the first variable portion 21 a and the second variable portion 21 b on the inferior angle side of the connecting portion 21. The thickness of the tip portion (near the boundary between the first variable portion 21a and the second variable portion 21b) is thinner than other portions. Therefore, as shown in FIG. 3, even when the connecting portion 21 is contracted (folded), the tip end portion of the connecting portion 21 (near the boundary portion between the first variable portion 21a and the second variable portion 21b) swells. Instead, the outer surface and the inner surface of the connecting portion 21 are substantially flat.

  Further, as shown in FIG. 5, the rear vertical side portion 8 corresponding to the rear edge portion of the door glass G also includes the main body portion 11, the pair of seal lips 12 and 13, the connecting portion 21, and the like in the same manner as the upper side portion 6. I have. However, the base portion 14 of the rear vertical side portion 8 is formed to be thicker than the base portion 14 of the upper side portion 6. In addition, a concave portion is formed on the outer peripheral surface side of the base portion 14 of the rear vertical side portion 8 so that molding distortion does not occur due to the increase in thickness. Further, the rear vertical side portion 8 is provided with a sub lip 31 extending from the vehicle inner side wall portion 16 to the vehicle outer side and the inner peripheral side of the door frame 2. The sub lip 31 comes into contact with the front end side of the back surface of the vehicle interior seal lip 13 when the vehicle interior seal lip 13 is pushed by the door glass G entering the interior of the main body 11 and displaced toward the vehicle interior. It becomes the structure which supports the door glass G in cooperation with the inner side seal lip 13, and, thereby, the vibration of the door glass G at the time of driving | running | working of a motor vehicle, etc. is suppressed. In addition, the design lips 17 and 18 of the rear vertical side portion 8 are configured to be larger than the design lips 17 and 18 of the upper side portion 6.

  However, in the rear vertical side portion 8, the portion disposed in the door panel 3 (the portion attached to the channel portion DC) is downsized as shown in FIG. Are also omitted.

  Further, the front vertical side portion 7 corresponding to the front edge portion of the door glass G also includes a main body portion 11, a pair of seal lips 12 and 13, a connecting portion 21, and the like, similarly to the upper side portion 6. Of the front vertical side portion 7, the portion disposed in the door panel 3 (the portion attached to the channel portion DC) has the same cross-sectional shape as the rear vertical side portion 8 shown in FIG. 7. Note that the sub lip 31 provided in the portion disposed in the door panel 3 is also moved when the vehicle inner side seal lip 13 is pushed by the door glass G entering the inside of the main body 11 and displaced toward the vehicle inner side. The door glass G is configured to support the door glass G in contact with the front end portion side of the back surface of the inner seal lip 13 in cooperation with the vehicle inner seal lip 13. Vibration is suppressed. However, the sub lip 31 is omitted as shown in FIG. 12 at a portion attached to the sash portion DS above the belt line.

  Moreover, the connection part 21 formed in the upper side part 6, the front vertical side part 7, and the rear vertical side part 8 is unbroken throughout the longitudinal direction of the glass run 5 like the main body part 11 and the seal lips 12, 13 and the like. The first variable portion 21a and the second variable portion 21b are bonded to each other over the entire length of the glass run 5 in the longitudinal direction. Further, the connecting portion 21 is formed in the vehicle interior / external direction at the same position in any position in the longitudinal direction of the glass run 5, and the width of the base portion 14 is the same.

  In addition, as shown in FIG. 9, the upper side portion 6 includes a plurality of locations on the distal end side of the vehicle outer side wall portion 15 and the vehicle outer side seal lip 12 at a predetermined distance from each other in the longitudinal direction of the upper side portion 6. And the built-up part 32a provided so that it may be connected. Further, as shown in FIG. 10, the rear vertical side portion 8 includes a portion on the tip end side of the vehicle outer side wall portion 15 and a root portion side of the vehicle outer seal lip 12 in the vicinity of the boundary portion with the upper side portion. The built-up part 32b provided so that a site | part may be connected is provided. Further, as shown in FIG. 11, the rear vertical side portion 8 includes a vehicle at a portion slightly lower than the central portion in the vertical direction (the central portion in the height direction of the window portion W) among the portions attached to the sash portion DS. A built-up portion 32c is provided so as to connect a portion on the distal end side of the inner side wall portion 16 and a portion on the root portion side of the vehicle interior seal lip 13. As shown in FIG. 12, the front vertical side portion 7 includes a portion on the front end portion side of the vehicle outer side wall portion 15 and a vehicle outer side seal lip 12 at a substantially central portion in the vertical direction among the portions attached to the sash portion DS. The built-up part 32d provided so that it may connect is provided. By providing the built-up portions 32a, 32b, 32c, and 32d in this way, the door glass G that closes the window portion W is inclined as desired (in the vertical direction, tilted upward toward the vehicle interior, and in the front-rear direction). It is adjusted so that it leans toward the inside of the vehicle toward the front.

  Next, the manufacturing method of the glass run 5 is demonstrated. First, a mold of a mold apparatus (not shown) is clamped, and TPV in a plasticized state is injected and filled into a cavity inside the mold by injection means. After the solidification is completed, the mold is opened, and the glass run 5 having the shape in which the connecting portion 21 is extended as shown in FIGS. 4, 6, and 8 is removed from the mold. In the present embodiment, the molding is performed so that the distance between the vehicle outer base portion 14 a and the vehicle inner base portion 14 b is constant in any part in the longitudinal direction of the glass run 5. As described above, the first variable portion 21a and the second variable portion 21b extend from the surfaces of the vehicle outer base portion 14a and the vehicle inner base portion 14b that face each other. The position of the root portion of the variable portion 21a (the connection portion with the vehicle outer base portion 14a) and the position of the root portion of the second variable portion 21b (the connection portion with the vehicle inner base portion 14b) are in the longitudinal direction of the glass run 5. It is the same position in any part. Further, the position of the boundary portion between the first variable portion 21 a and the second variable portion 21 b in the vehicle interior / exterior direction is shaped so as to be the same in any portion of the glass run 5 in the longitudinal direction.

  Thereafter, the first variable portion 21a and the second variable portion 21b are applied to the entire surfaces of the first variable portion 21a and the second variable portion 21b facing each other, the connecting portion 21 is contracted, and the first variable portion 21a and the second variable portion are solidified until the adhesive is solidified. In order to maintain the state in which the surface 21b is in contact with the surface 21b, both sides of the base portion 14 are held so as to be sandwiched. As described above, the glass run 5 is manufactured.

  As described above in detail, according to the present embodiment, since the entire longitudinal direction of the glass run 5 is integrally formed by molding, for example, a plurality of molded bodies including an extruded molded body are connected in the longitudinal direction. Unlike the glass run configured as described above, it is possible to avoid a situation in which a connecting line connecting adjacent molded bodies appears on the appearance. In addition, it is possible to avoid a situation in which a difference in color / gloss partially occurs in the longitudinal direction of the glass run 5. As a result, the appearance quality is improved.

  Further, by molding the glass run 5 in a shape in which the connecting portion 21 is extended, both the seal lips 12 and 13 can be sufficiently separated. For this reason, it is not necessary to set it as the expansion | deployment shape which the front-end | tip of the vehicle inner side wall part 16 and the vehicle outer side wall part 15 spread widely. Accordingly, when attaching to the sash portion DS and the channel portion DC, it is not necessary to greatly change the cross-sectional shape, so that the attachment state of the glass run 5 to the sash portion DS and the channel portion DC is stabilized, and the sealing property is improved. be able to.

  Further, the glass run 5 is integrally formed (the base portion 14, the vehicle interior side wall portion 16, the vehicle exterior side wall portion 15, the vehicle interior seal lip 13, the vehicle exterior seal lip 12, etc. are connected together via the connecting portion 21. Therefore, it is possible to simplify the entire manufacturing facility and improve manufacturing workability, and as a result, it is possible to reduce costs and improve productivity. In particular, since the connecting portion 21 is formed in the entire longitudinal direction of the glass run 5, for example, compared to a configuration in which the connecting portion 21 is partially provided in the longitudinal direction of the glass run 5, When filling the constituent material, it is easy to spread the constituent material over the entire cavity. For this reason, improvement of manufacturing workability (shortening of manufacturing time), suppression of molding defects, simplification of a mold apparatus, and the like can be achieved.

  In addition, the connecting portion 21 has a convex shape on the inner peripheral side of the main body portion 11. For this reason, for example, the connecting part 21 protrudes from the base part 14 of the front vertical side part 7 and the rear vertical side part 8 to the outer peripheral side of the door frame 2, so that the connecting part 21 becomes the sash part DS and the channel part. It is possible to suppress a situation in which the glass run 5 is lifted from the sash portion DS and the channel portion DC due to the repulsive force of the connecting portion 21 while being pressed against the DC (bottom surface). Therefore, by adopting this configuration, the glass run 5 can be suitably used even for an automobile having no space on the outer peripheral side of the door frame 2 at the portion of the sash portion DS where the vertical sides 7 and 8 of the glass run 5 are attached. Can be installed.

  Furthermore, the connection part 21 is provided in the position (the vehicle inner side rather than the inner surface of the door glass G) remove | deviated from the opposing part of the end surface of the door glass G in the base part 14. FIG. For this reason, it is possible to prevent the possibility of causing problems such as an increase in resistance when the door glass G slides due to the connection portion 21 coming into contact with the door glass G. Furthermore, the formation position of the connecting portion 21 in the vehicle interior / exterior direction is constant in any part in the entire longitudinal direction of the glass run 5. For this reason, the situation where it becomes difficult to contract the connecting part 21 because the position of the connecting part 21 is shifted, or the connecting part 21 or the like is deformed into an irregular shape when contracted (folded) can be suppressed. .

  In addition, since the connecting portion 21 cannot be attached to the sash portion DS and the channel portion DC in the extended state, when the first variable portion 21a and the second variable portion 21b are not fixed to each other, the connection to the sash portion DS and the channel portion DC is not possible. Although it is necessary to maintain the contracted state of the connecting portion 21 at the time of attachment, if the connecting portion 21 is contracted, a repulsive force is generated by the connecting portion 21, which may make the attaching operation relatively difficult. Further, in the state where the base portion 14 is inserted into the sash portion DS and the channel portion DC, it is necessary to release the hand from the base portion 14, so that the connecting portion 21 extends and the periphery of the opening portion of the sash portion DS and the channel portion DC. There is also a concern that it will be caught on (the peripheral edge of the inner peripheral side of the door frame 2) and will be difficult to push. On the other hand, according to the present embodiment, since the first variable portion 21a and the second variable portion 21b constituting the connecting portion 21 are fixed to each other, the above-described problem can be avoided, and attachment workability can be improved. Improvements can be made.

  In addition, since the first variable portion 21a and the second variable portion 21b are fixed to each other, when the glass run 5 is pushed into the sash portion DS and the channel portion DC, the portion on the vehicle inner side wall portion 16 side, etc. And the site | part by the side of the vehicle outer side wall part 15 side can prevent the situation where it shifts | deviates in the outer peripheral direction of the door glass G. Therefore, it is possible to improve the mounting workability, and it is possible to accurately attach the glass run 5 to the sash portion DS and the channel portion DC.

  Further, if the base portion 14 is simply narrowed and the connecting portion 21 is contracted, the connecting portion 21 swells so that a hollow portion is formed inside the connecting portion 21, and the sliding of the door glass G or the like may be hindered. There is. On the other hand, in this embodiment, since the 1st variable part 21a and the 2nd variable part 21b are mutually fixed, the said malfunction can be suppressed. Therefore, the possibility that the connecting portion 21 contacts the door glass G and the slidability of the door glass G is reduced can be suppressed.

  Furthermore, for example, when the connecting portion 21 is partially provided in the longitudinal direction of the glass run 5, the connecting portion 21 is contracted due to the thickness of the connecting portion 21 or the repulsive force of the connecting portion 21. Thus, there is a possibility that the lateral width of the base portion 14 changes (the contraction amount of the base portion 14 in the vehicle interior / exit direction changes) between the portion where the connecting portion 21 exists and the portion where the connecting portion 21 does not exist. On the other hand, according to this embodiment, the connection part 21 is provided in the whole longitudinal direction of the glass run 5. For this reason, the lateral width of the base portion 14 can be made substantially uniform over the entire length of the glass run 5, and the attachment state can be stabilized.

  Further, the first variable portion 21a and the second variable portion 21b are bonded (adhered) to each other on the entire surfaces of the first variable portion 21a and the second variable portion 21b that face each other. For this reason, in a state where the substantially V-shaped connecting portion 21 is contracted (folded), the first variable portion 21a and the second variable portion 21b are partially separated (a hollow portion is formed). It is possible to prevent a situation in which the connecting portion 21 swells. Accordingly, the connecting portion 21 comes into contact with the door glass G to reduce the sliding property of the door glass G, or the connecting portion 21 obstructs the operation of the vehicle interior seal lip 13 more reliably. Can be prevented.

  Furthermore, the first variable portion 21a and the second variable portion 21b are formed in a substantially linear shape, and along the boundary portion between the first variable portion 21a and the second variable portion 21b on the inferior angle side of the connecting portion 21. Thus, the groove-like portion 24 is formed, and the groove-like portion 24 makes the thickness near the boundary between the first variable portion 21a and the second variable portion 21b thinner than other portions. For this reason, by contracting (folding) the substantially V-shaped connecting portion 21, the tip end side of the connecting portion 21 (near the boundary between the first variable portion 21a and the second variable portion 21b) swells. The situation can be prevented. Accordingly, the connecting portion 21 comes into contact with the door glass G to reduce the sliding property of the door glass G, or the connecting portion 21 obstructs the operation of the vehicle interior seal lip 13 more reliably. Can be prevented.

  In addition, the first variable portion 21a and the second variable portion 21b respectively extend from the outer peripheral portion of the main body portion 11 of the surfaces of the vehicle outer base portion 14a and the vehicle inner base portion 14b that face each other. In the fixed state of the portion 21a and the second variable portion 21b (the contracted state of the connecting portion 21), the base side portions of the first variable portion 21a and the second variable portion 21b are the vehicle outer base portion 14a and the vehicle inner base. It is comprised so that it may be pinched | interposed into the part 14b. That is, the side surface of the base portion side of the first variable portion 21a and the second variable portion 21b and the vehicle inner end surface of the vehicle outer base portion 14a and the vehicle outer end surface of the vehicle inner base portion 14b abut or substantially abut. It will be. For this reason, even when the connecting portion 21 is tilted when the connecting portion 21 is contracted, the side surfaces of the first variable portion 21a and the second variable portion 21b are in contact with the end surfaces of the vehicle outer base portion 14a and the vehicle inner base portion 14b. Tilt is prevented by touching. Therefore, the contact between the connecting portion 21 and the door glass G can be reliably prevented.

  Further, in the glass run 5, the position of the root portion of the first variable portion 21 a and the position of the root portion of the second variable portion 21 b in the vehicle inside / outside direction are the same position in any part in the longitudinal direction of the glass run 5. Is molded as follows. For this reason, when the connecting portion 21 is contracted, the first variable portion 21a and the second variable portion 21b are partially separated in the longitudinal direction of the glass run 5, or the connecting portion 21 is uneven. It is possible to prevent a situation such as falling.

  Further, the first variable portion 21a and the second variable portion 21b are linearly formed, and a groove portion 24 is formed at the boundary portion between the first variable portion 21a and the second variable portion 21b. By configuring the connection portion 21 to be thin, the first variable portion 21a and the second variable portion 21b can be connected to each other without holding the first variable portion 21a and the second variable portion 21b. The surface can be contacted. Therefore, both sides of the base portion 14 (the vehicle outer end portion of the vehicle outer base portion 14a and the vehicle inner end portion of the vehicle inner base portion 14b) are sandwiched between the first variable portion 21a and the second variable portion 21b. It is sufficient to hold it, and workability can be improved.

  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 first variable portion 21a and the second variable portion 21b are bonded with an adhesive, but the first variable portion 21a and the second variable portion 21b are thermally welded or ultrasonically welded. It may be adhered by, for example.

  Moreover, in the said embodiment, although the glass run 5 is comprised by TPV, by another raw materials, such as ethylene-propylene-diene copolymer rubber (EPDM) and a non-crosslinked olefin type thermoplastic elastomer (TPO), it is. It may be configured. In addition, by comprising the glass run 5 by TPV, it becomes possible to heat-weld or ultrasonically weld the 1st variable part 21a and the 2nd variable part 21b. Further, by adopting an olefin-based thermoplastic elastomer having a viscosity lower than that of EPDM as a constituent material of the glass run 5, it becomes easy to spread the constituent material of the glass run 5 to every corner of the mold cavity. There are effects such as suppressing the complexity of the structure.

  (B) In the above embodiment, the first variable portion 21a and the second variable portion 21b extend from the surfaces of the vehicle outer base portion 14a and the vehicle inner base portion 14b facing each other. The first variable portion 21a and the second variable portion 21b may be configured to extend from the side end portions of the inner side surfaces (the inner peripheral surface of the main body portion 11) of the vehicle outer base portion 14a and the vehicle inner base portion 14b. Good. Furthermore, when employ | adopting the said structure, it is good also as fixing the mutually opposing surfaces among the vehicle outer side base part 14a and the vehicle inner side base part 14b. In this case, variation in cross-sectional shape can be reduced, and the connecting portion 21 can be protected when the vehicle outer base portion 14a and the vehicle inner base portion 14b are pulled in a direction away from each other.

  (C) The built-up portions 32a, 32b, 32c, and 32d for adjusting the inclination of the door glass G when the window portion W is closed can be appropriately changed for each vehicle type. For example, the portions shown in FIGS. It is also possible to omit the built-up portions 32b and 32c. Further, the sub lip 31 provided in the part disposed below the belt line of the rear vertical side part 8 or the front vertical side part 7 does not need to be provided in the entire longitudinal direction of the part, for example, FIG. It is also possible to omit the sub lip 31 at the site shown in FIG.

  (D) In the above embodiment, the glass run 5 for the front door has been described in detail, but it may be applied to a glass run for a rear door or the like.

  DESCRIPTION OF SYMBOLS 1 ... Automobile, 2 ... Door frame, 5 ... Glass run, 6 ... Upper side part, 7 ... Front vertical side part, 8 ... Rear vertical side part, 11 ... Main-body part, 12 ... Car outer side seal lip, 13 ... Car inner side seal Lip, 14 ... Base part, 14a ... Outer base part, 14b ... Car inner base part, 15 ... Car outer side wall part, 16 ... Car inner side wall part, 21 ... Connection part, 21a ... First variable part, 21b ... First 2 variable parts, 24 ... groove-like part, DC ... channel part, DS ... sash part, G ... door glass.

Claims (7)

It has a base portion, a vehicle inner side wall portion and a vehicle outer side wall portion extending from the base portion, has a substantially U-shaped cross section, and is attached to a mounting portion provided along the inner periphery of the vehicle door frame. Main body
A vehicle inner seal lip and a vehicle outer seal lip extending inward of the main body from substantially the front ends of the vehicle inner side wall and the vehicle outer side wall,
It is formed at a position deviating from the facing part of the end face of the door glass in the base part, and at the time of molding, it is provided with a connecting part formed in a substantially V-shaped cross section that is convex on the inner peripheral side of the main body part,
The entire longitudinal direction including the upper side corresponding to the upper edge of the door glass that moves up and down and the front vertical side and rear vertical side corresponding to the front edge and rear edge of the door glass is integrated by molding. Formed into
The connecting portion is composed of a first variable portion located near the opposite portion of the end face of the door glass in the base portion and a second variable portion located far away, and is continuous over the entire longitudinal direction of the main body portion. The glass run is characterized in that the first variable portion and the second variable portion are fixed in contact with each other on the surface.   2. The glass run according to claim 1, wherein an entire surface of the first variable portion and the second variable portion facing each other is fixed. The first variable portion and the second variable portion are formed in a substantially linear shape,
A groove portion is formed along the boundary between the first variable portion and the second variable portion on the inferior angle side of the connecting portion, and the first variable portion and the second variable portion are formed by the groove portion. The glass run according to claim 1 or 2, wherein the thickness near the boundary with the portion is thinner than other portions.   The base portion includes a vehicle outer base portion and a vehicle inner base portion connected by the connecting portion, and the first variable portion and the vehicle from the mutually opposing surfaces of the vehicle outer base portion and the vehicle inner base portion. Each of the second variable portions extends, and in the fixed state of the first variable portion and the second variable portion, surfaces of the vehicle outer base portion and the vehicle inner base portion that face each other, and the first variable portion The glass run according to claim 1, wherein the second variable portion is in contact with or substantially in contact with the second variable portion. The method for producing a glass run according to any one of claims 1 to 4,
After molding, the entire length of the connecting part is integrally formed with the shape in which the connecting part extends in the vehicle interior / exterior direction, and then the first variable part and the second variable part are fixed to each other in a state where they are in contact with each other. A method for producing a glass run.   It is molded so that the position of the root portion of the first variable portion and the position of the root portion of the second variable portion in the vehicle interior / external direction are the same in any part in the longitudinal direction of the glass run. The method for producing a glass run according to claim 5, wherein:   The first variable portion and the second variable portion are formed in a substantially linear shape, and hold both side portions of the base portion when the first variable portion and the second variable portion are fixed to each other. The manufacturing method of the glass run of Claim 5 or 6.

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