JP2005280419A - Glass run and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a glass run capable of realizing rapid enhancement of workability at mounting work of the glass run. <P>SOLUTION: The glass run 1 is mounted to a sash of a vehicle door and is constituted from an extrusion molding part 2 or the like and a mold molding part 5 or the like. The respective molding parts 2 or the like are provided with a body part 13 comprising a base bottom part 10 and side wall parts 11, 12; seal lips 14, 15 for sealing between a door glass and it; and an extension part 16 extensible in the outside/inside direction of the vehicle on the base bottom part 10. At manufacturing of the glass run 1, the extrusion molding part 2 or the like in the state that the extension part 16 firstly maintains the contraction state is molded and it is cut to predetermined length. A joint part is separated at an end of the extrusion molding part 2 or the like to enable the extension part 16 to be extended. The end of the extrusion molding part 2 or the like is set in a metal mold device and the mold molding part 5 or the like is connection-molded. Thereby, the glass run 1 comprising the extrusion molding part 2 or the like in which the extension part is in the contraction state 1 and the mold molding part 5 or the like in which the extension part 16 is in the extension state is obtained. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a glass run attached to a sash provided on a vehicle body or a door and a method for manufacturing the same.

  As shown in FIGS. 5 and 6, the glass run 61 includes a base portion 62, a main body portion 65 including a pair of side wall portions 63 and 64 extending from the base portion 62, and a main body from substantially the distal ends of the side wall portions 63 and 64. It has a pair of seal lips 66 and 67 extending inside the portion 65. The main body 65 is attached to a sash S provided on the main body or door of the vehicle, and the inside and outside of the door glass G are sealed by the pair of seal lips 66 and 67.

  In general, the glass run 61 is divided into an extrusion-molded portion and a mold-molded portion in the longitudinal direction. The extrusion molding part is formed substantially linearly (in a long shape) by an extruder (not shown). The mold forming portion mainly corresponds to the corner portion, and is formed with a predetermined mold so that the two extruded portions are connected to each other at a predetermined angle (for example, 90 degrees).

  Conventionally, as shown in FIG. 5, in both the extruded portion and the molded portion, a state in which a pair of side wall portions 63 and 64 are expanded with respect to the base portion 62, that is, both side wall portions 63 and 64 are connected to the base portion 62. It is molded in a state opened outward from the root of the base. In this case, it is necessary to set a core for defining the inner peripheral surface of the main body 65 and the seal lips 66 and 67 at the time of molding, but in the case of a mold having a cavity in which the seal lips 66 and 67 are close to each other. This is because the holding plate for holding the core cannot have a sufficient thickness unless it is molded in the expanded state.

  As shown in FIG. 6, when the glass run 61 molded in the unfolded state as described above is attached to the sash S, the side wall portions 63 and 64 are narrowed from the unfolded state to the undeployed state. In other words, in the attached state, the side wall portions 63 and 64 are moved inward, and the main body portion 65 has a substantially U-shaped cross section. At this time, when the door glass G is not present, the tip portions of the seal lips 66 and 67 are in contact with each other.

  However, in the above technique, when the mold forming part is narrowed when attaching to the S to the sash, each part of the mold forming part (corner part) is not uniformly deformed, and the bending angle based on the stress at that time (Curvature radius, circumference, etc.) may change. In this case, the overall shape of the glass run 61 may not follow the sash shape, and attachment failure may occur.

  On the other hand, it is conceivable to design the glass run 61 in the unfolded state in anticipation of such a change in angle, etc., but in this case, it is impossible to predict what kind of angle change will occur. Trial and error must be repeated, resulting in a significant increase in design man-hours.

On the other hand, the base portion is formed into a bellows-like stretchable portion that can be stretched in and out of the vehicle, and the stretchable portion that has been stretched before being attached to the sash is shrunk when attached, There is also a glass run that fits into the sash (see, for example, Patent Document 1).
JP-A-9-315161

  However, when attaching the glass run provided with the stretchable part to the sash, the operator sequentially fits each part into the sash while maintaining the contracted state of the stretchable part over the entire length of the glass run. There was a risk that the work would have to be performed and the installation work would be very time consuming.

  The present invention has been made in order to solve the above-mentioned problems, and the purpose thereof is to dramatically improve the workability in attaching the glass run to the sash and to make the molded portion nonuniform. An object of the present invention is to provide a glass run capable of suppressing deformation and suppressing an increase in design man-hours, and a manufacturing method thereof.

  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. Having an extrusion molded part formed by an extrusion molding method and a mold molding part formed by connection at the end of the extrusion molding part by a molding method;
A main body portion that is attached to a vehicle body or a sash provided on a door and has a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion that extend from both ends of the base portion, and the vehicle inner side A pair of seal lips that extend from the front ends of the side wall and the vehicle outer side wall to the inside of the main body and seal with the door glass, and a telescopic part that is formed on the base and can be extended and retracted in the vehicle interior and exterior. A glass run manufacturing method comprising:
An extrusion process for forming the extruded part while maintaining the state in which the stretchable part is contracted in the vehicle interior / exterior direction by an extrusion method,
A cutting step of cutting the extruded portion into a predetermined length;
Unraveling the maintenance of the contracted state of the stretchable part of the end part of the extruded part after cutting, with the stretched part extended, and setting the end of the extruded part to a mold, A method for producing a glass run, comprising: a mold forming step of connecting and molding a mold part having the same cross-sectional shape as an end part of the extrusion part including an expansion / contraction part.

  According to the means 1, there is a glass run comprising an extrusion molding part that maintains the state in which the expansion / contraction part is contracted in the vehicle interior / exterior direction and a mold forming part in a state in which the expansion / contraction part is extended in the vehicle interior / exterior direction. Molded. Therefore, when attaching a glass run that has a telescopic part that can be expanded and contracted in the vehicle in the base part to the sash, the work that the operator fits into the sash while maintaining the contracted state of the elastic part corresponds to the mold part. It is only necessary to perform only a part to be performed, simplification of the mounting operation of the glass run can be achieved, and the workability can be drastically improved.

  Further, at the time of molding, the mold molding part is in a state in which the expansion / contraction part is extended in the vehicle inside / outside direction, and the main body part is in a non-deployed state in a substantially U-shaped cross section, There is an opening between the lips. Therefore, the holding plate for holding the core of the mold can have a sufficient thickness. Moreover, since it is not necessary to squeeze the side wall portion in the mold forming portion from the unfolded state during the mounting operation, the angle, the radius of curvature, the circumferential length, etc. of the mold forming portion do not change before and after the mounting. As a result, non-uniform deformation of the molded part can be suppressed and increase in design man-hours can be suppressed.

Mean 2. In the extrusion molding step, the extruded part is a state in which the base parts opposed to each other with the stretched part facing each other or the stretched part are sandwiched so that the stretched part can maintain the contracted state. Extruded and
The production of the glass run according to means 1, characterized by comprising a releasing step of releasing the joining of the joining portion when the contracted state of the stretchable portion at the end of the extrusion-molded portion is released and extended. Method.

  According to the above means 2, the extrusion-molded part is extrusion-molded in a state in which the opposing parts of the stretchable parts or the base parts opposed to each other across the stretchable part are joined. Therefore, even when the glass run is attached, the contracted state of the stretchable part is easily maintained, and the workability can be further improved.

  Means 3. The method for producing a glass run according to means 1 or 2, wherein the stretchable part has a shape having a hollow part in the contracted state.

  According to the said means 3, since an expansion-contraction part shrink | contracts in the shape which has a hollow part, it will join in the state which was not point contact but point contact. That is, the joint portion becomes relatively thin, and it becomes easy to perform the work (the work in the releasing step) for releasing the contraction state of the expansion / contraction part and the extension state. For example, in the release step, the joint can be released relatively easily by inserting a blade into the hollow portion. As a result, the extension work of the stretchable part becomes relatively easy, and the workability can be further improved. In addition, the amount of protrusion in the direction of the thickness of the base when contracting (for example, the inside of the main body) is suppressed, and a relatively large amount of extension toward the inside and outside of the vehicle (the amount of opening between the seal lips) when extending. Can be obtained.

  Means 4. The method for producing a glass run according to any one of means 1 to 3, wherein the stretchable portion has a convex shape toward the inside of the main pair portion in the contracted state.

  According to the means 4, since the expansion / contraction part contracts so as to be convex toward the inside of the main part, the base part that is opposed to the part of the expansion / contraction part or the part of the expansion / contraction part in the contracted state of the expansion / contraction part The contact portion (joint portion) is directed to the outside of the main body, that is, exposed. Therefore, the extension work of the expansion / contraction part becomes relatively easy, and the workability can be further improved.

  Means 5. In the contracted state, the stretchable part has a shape such that a part of the stretchable part facing each other or a part of the bases in contact with each other across the stretchable part is in one place. A method for producing a glass run according to any one of means 1 to 4.

  According to the above means 5, since the expansion / contraction part is not in contact with a plurality of places as in the case of the bellows shape, the labor for extending the expansion / contraction part is reduced, and the workability can be further improved.

  Means 6. 6. The method for producing a glass run according to any one of means 1 to 5, wherein the mold forming portion constitutes a corner portion of the glass run disposed at a corner portion of the sash.

  According to the above means 6, in the case of the molded part constituting the corner part, the angle of the molded part, the radius of curvature, the circumference, etc. are changed by constricting the side wall part in the developed state. However, since this means does not squeeze the side wall, such a concern can be eliminated from the beginning.

Mean 7 Having an extrusion molded part formed by an extrusion molding method and a mold molding part formed by connection at the end of the extrusion molding part by a molding method;
A main body portion that is attached to a vehicle body or a sash provided on a door and has a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion that extend from both ends of the base portion, and the vehicle inner side A pair of seal lips that extend from the front ends of the side wall and the vehicle outer side wall to the inside of the main body and seal with the door glass, and a telescopic part that is formed on the base and can be extended and retracted in the vehicle interior and exterior. A glass run,
The expansion / contraction part of the extrusion molding part is formed while maintaining the contracted state in the vehicle interior / exterior direction,
At the end of the extrusion molding part, it is connected and formed to the mold molding part in a state where the contraction state of the expansion / contraction part is unwound and extended,
In the molded part, the stretchable part is formed in an extended state,
In the attached state to the sash, the stretchable part at the end of the extruded part and the stretchable part of the mold part are attached in a contracted state.

  According to the means 7, the same effect as that of the means 1 can be obtained.

  Means 8. The means 7 is characterized in that, in the attached state to the sash, the end portions of the extrusion-molded portion and the stretchable portion of the mold-molded portion are in a contracted state, and both end portions thereof contact to form a hollow portion. Glass run.

  According to the means 8, the same effect as the means 3 is obtained.

  Hereinafter, an embodiment will be described with reference to the drawings. In a vehicle having an elevator door glass, as shown in FIG. 1, a glass run 1 made of EPDM (ethylene-propylene-diene copolymer rubber) is attached corresponding to the outer peripheral shape of the door glass. More specifically, the door is provided with a sash S (see FIG. 3) having a substantially U-shaped cross section in accordance with the outer peripheral shape of the door glass, and the glass run 1 of the present embodiment is provided on the sash S. Is installed.

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

  As shown in FIGS. 2 to 4, the extruded portions 2 to 4 and the molded portions 5 and 6 include a base portion 10 attached to the sash S, a vehicle inner side wall portion 11 extending from both ends of the base portion 10, and a vehicle outer side wall. A pair of body parts 13 each having a substantially U-shaped cross-section, and a pair of parts extending from the front end of the vehicle inner side wall part 11 and the vehicle outer side wall part 12 to the inside of the main body part 13 and sealing with the door glass G. Seal lips 14 and 15 are provided.

  The base portion 10 is formed with a stretchable portion 16 that can be stretched in the vehicle interior / exit direction. As shown in FIG. 3, the expansion / contraction part 16 is offset to the vehicle inner side than the portion (range) Y where the end surface of the door glass G abuts or slides in the vehicle interior / exterior direction (left / right direction in FIG. 3). It is provided at the position. In this embodiment, it is provided in the vicinity of the connecting portion with the vehicle interior side wall portion 11. That is, it is formed at a position that does not hinder the contact or sliding of the door glass G.

  The expansion / contraction part 16 is thinner than the thickness of the base part 10, has a curved shape that protrudes toward the inside of the main body part 13, and contracts so that the hollow part 17 is formed when attached to the sash S. It is in a state.

  Next, the structure of the expansion / contraction part 16 before the attachment to the sash S will be described in more detail by taking the extruded part 2 and the molded part 5 as examples. FIG. 2 is a perspective view showing a rear corner portion of the glass run 1 before being attached to the sash S. FIG.

  As shown in the figure, in most of the longitudinal direction of the extrusion molding part 2, the stretchable part 16 is joined with the base parts 10 facing each other with the stretchable part 16 sandwiched so as to maintain a contracted state. There are joints 18 along the longitudinal direction. In addition, since the expansion-contraction part 16 becomes convex toward the inner side of the main part 13 and contracts in and out of the vehicle, in the contracted state of the expansion / contraction part 16, the joint 18 is exposed to the outside of the main body part 13. Yes.

  The joint 18 is formed by either a method of joining and extruding, or immediately after being extruded from an extrusion die, and contacting the part by sizing to form a joint. In any case, the joining portion 18 maintains the contracted state of the stretchable portion 16 regardless of the attachment to the sash S.

  On the other hand, in the mold forming part 6, before the attachment to the sash S, the expansion / contraction part 16 is in an extended state extending in the vehicle interior / exit direction (see FIG. 4). That is, the vehicle interior side wall portion 11 and the vehicle exterior side wall portion 12 are translated to both sides by a dimension corresponding to the extension of the expansion / contraction portion 16 as compared with the extruded portion 2 while the main body portion 13 maintains a substantially U-shaped cross section. It is in a state. As a result, a predetermined opening amount W sufficient to give the holding plate for holding the core, which will be described later, a sufficient thickness is secured.

  In addition, as shown in FIG. 2, the joint 18 is separated in a predetermined section from the end of the extrusion part 2 connected to the mold part 5, so that the expansion / contraction part 16 can be extended, The cross-sectional shape of the end portion of the extrusion-molded portion 2 and the cross-sectional shape of the mold-molded portion 5 to be molded can be matched with each other when set in the mold.

  Note that the joint formed by contact by sizing is easy to separate, and the joint can be torn manually without using a jig. When the joined portion is formed by joining and extruding, it is cut and separated using a tool such as a knife.

  As described above, in the glass run 1 of the present embodiment, the main body 13 of both the extrusion molding part 2 and the mold molding part 5 has a substantially U-shaped cross section in a non-deployed state even before being attached to the sash S. ing. And when attaching the mold molding part 5 and the edge part vicinity of the extrusion molding part 2 to the sash S, the main body is obtained by contracting the telescopic part 16 and moving the vehicle inner side wall part 11 and the vehicle outer side wall part 12 in parallel. The part 13 can be easily fitted into the sash S.

  In addition, since most of the extrusion-molded portion 2 is maintained in the contracted state of the stretchable portion 16, the main body portion 13 can be fitted into the sash S as it is.

  Next, the manufacturing method of the glass run 1 which has said structure is demonstrated. However, for convenience of explanation, the explanation will be made centering on the peripheral part (rear corner part) of the mold part 5 (the other parts are manufactured in the same manner). First, an extrusion molding machine (not shown) is used to perform extrusion molding by a known extrusion molding method, and cut into a predetermined length to mold the extrusion molding parts 2, 3, and 4. At this time, as described above, in the extrusion molding parts 2, 3, and 4, the main body part 13 is molded in a state where the expansion / contraction part 16 is contracted.

  Subsequently, the joining of the joining portion 18 in the vicinity of the end portion on the mold forming portion 5 side of the extrusion molding portion 2 and the extrusion molding portion 4 is released. In this case, since the thickness of the joint portion 18 is sufficiently thin, it can be easily separated manually or using a blade or the like.

  Next, the end portions of the extrusion molding portions 2 and 4 are placed facing the cavities of a mold apparatus (not shown), and the molding portion 5 is molded. At this time, the extrusion molding parts 2 and 4 and the molding part 5 are connected simultaneously. The mold apparatus used for the molding includes a fixed mold, a plurality of movable molds, and a core for defining the inner peripheral surface of the main body 13 and the like, and the core holds the core. The holding plate is extended and formed. When forming the mold forming portion 5, first, the ends of the extrusion forming portions 2 and 4 in which the joint portion 18 is separated and the expansion and contraction portion 16 can be extended in the state where the respective molds are opened. Set in the mold unit. Subsequently, the molds are placed at predetermined positions and the molds are clamped. At this time, a cavity for molding a molded part is formed by each mold. Then, unvulcanized EPDM is injected into the cavity and then vulcanized. Thereafter, each mold is opened, and a glass run 1 in which the mold forming part 5 is connected to the extrusion molding parts 2 and 4 is obtained.

  Then, the glass run 1 is fitted into the sash S. At this time, the expansion / contraction part 16 such as the mold forming part 5 or the like may be in contact with the end part or may be provided with a slight gap.

  As described in detail above, in the present embodiment, the extrusion molding parts 2 to 4 in a state in which the expansion / contraction part 16 is contracted in the vehicle interior / exterior direction and the mold forming part in a state in which the expansion / contraction part 16 is expanded in the vehicle interior / exterior direction. A glass run 1 composed of 5 and 6 is formed. Therefore, when attaching to the sash S, the operator does not need to perform the operation of fitting the sash S into the sash S while maintaining the contracted state of the extendable portion 16. That is, it is only necessary to perform the portions corresponding to the molded portions 5 and 6 and the vicinity thereof. As a result, the mounting operation of the glass run 1 can be simplified, and the workability can be dramatically improved.

  In addition, according to the glass run 1 of the present embodiment, when the molded portions 5 and 6 are not attached to the sash S, the stretchable portion 16 is in an expanded state, and the main body portion 13 is The cross section is substantially U-shaped. For this reason, when it is actually attached to the sash S, there is no need to rotate and squeeze the side wall portions 11 and 12 of the mold forming portions 5 and 6 from the unfolded state. The radius of curvature, circumference, etc. do not change before and after installation. Therefore, it is possible to avoid a problem that the sash S cannot be attached along the shape of the sash S. Further, in designing, it is not necessary to repeat trial and error in anticipation of the above change, so that the design man-hour can be reduced.

  Further, the open amount W is secured between the seal lips 14 and 15 at the time of molding. For this reason, even if the mold forming parts 5 and 6 have a substantially U-shaped cross section in a non-deployed state, the holding plate for holding the core can have a sufficient thickness.

  Moreover, the extrusion molding parts 2-4 are extrusion-molded in the state in which the base parts 10 which oppose on both sides of the expansion-contraction part 16 were joined. Therefore, even when the glass run 1 is attached, the contracted state of the expansion / contraction part 16 is maintained, and further workability can be improved.

  Further, since the hollow portion 17 is formed by the stretchable portion 16, the joint portion 18 becomes relatively thin. Furthermore, in the release step, the joint 18 can be separated relatively easily through the hollow portion 17 (by inserting a blade or the like). Furthermore, the joint portion 18 is exposed outside the main body portion 13. As a result, the separation work becomes relatively easy, and the workability can be further 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 glass run 1 is attached to the sash S provided on the side door, but may be embodied to the glass run 1 attached to the vehicle main body side.

  (B) The shape and configuration of the contraction portion 16 are not limited to the above embodiment. For example, the hollow portion 17 may not be formed in the contracted state. Moreover, you may employ | adopt a bellows-shaped expansion-contraction part. Of course, it is good also as a structure that the expansion-contraction part 16 becomes convex toward the outer side of the main-body part 13. FIG.

  Further, the arrangement position of the expansion / contraction part 16 is not limited to the position offset to the vehicle inner side than the part (range) Y where the end surface of the door glass G abuts or slides in the vehicle interior / exterior direction. The position may be offset to the outside of the vehicle, or may be arranged according to a site (range) Y where the end surface of the door glass G abuts or slides.

  (C) In the above embodiment, the glass run 1 is made of EPDM. However, the glass run 1 may be made of another material such as olefin-based thermoplastic elastomer (TPO) or soft polyvinyl chloride. In addition, when forming with materials, such as TPO, it is not necessary to vulcanize | cure after injection | pouring of the material to a metal mold | die, and shortening of manufacturing time can be aimed at.

It is a figure which shows the whole structure of a glass run. It is a perspective view which shows the corner part of the glass run before attachment. It is the KK sectional view taken on the line of FIG. It is the JJ sectional view taken on the line of FIG. It is sectional drawing which shows the glass run before the attachment in a prior art. It is sectional drawing which shows the glass run after the attachment in a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Glass run, 2, 3, 4 ... Extrusion part, 5, 6 ... Molding part, 10 ... Base part, 11 ... Car inner side wall part, 12 ... Car outer side wall part, 14, 15 ... Seal lip, 16 ... Expandable part, 17 ... Hollow part, 18 ... Joint part, S ... Sash, G ... Door glass, W ... Opening amount.

Claims (8)

Having an extrusion molded part formed by an extrusion molding method and a mold molding part formed by connection at the end of the extrusion molding part by a molding method;
A main body portion that is attached to a vehicle body or a sash provided on a door and has a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion that extend from both ends of the base portion, and the vehicle inner side A pair of seal lips that extend from the front ends of the side wall and the vehicle outer side wall to the inside of the main body and seal with the door glass, and a telescopic part that is formed on the base and can be extended and retracted in the vehicle interior and exterior. A glass run manufacturing method comprising:
An extrusion process for forming the extruded part while maintaining the state in which the stretchable part is contracted in the vehicle interior / exterior direction by an extrusion method,
A cutting step of cutting the extruded portion into a predetermined length;
Unraveling the maintenance of the contracted state of the stretchable part of the end part of the extruded part after cutting, with the stretched part extended, and setting the end of the extruded part to a mold, A method for producing a glass run, comprising: a mold forming step of connecting and molding a mold part having the same cross-sectional shape as an end part of the extrusion part including an expansion / contraction part. In the extrusion molding step, the extruded part is a state in which the base parts opposed to each other with the stretched part facing each other or the stretched part are sandwiched so that the stretched part can maintain the contracted state. Extruded and
2. The glass run according to claim 1, further comprising a releasing step of releasing the joint of the joint when the contracted state of the stretchable part at the end of the extrusion part is unwound and extended. Production method.   The method for producing a glass run according to claim 1, wherein the stretchable portion has a shape having a hollow portion in the contracted state.   The method for producing a glass run according to any one of claims 1 to 3, wherein the stretchable portion has a convex shape toward the inside of the main pair in the contracted state.   In the contracted state, the stretchable part has a shape such that a part of the stretchable part facing each other or a part of the bases in contact with each other across the stretchable part is in one place. The manufacturing method of the glass run in any one of Claims 1 thru | or 4.   6. The method for producing a glass run according to claim 1, wherein the mold forming portion constitutes a corner portion of the glass run disposed at a corner portion of the sash. Having an extrusion molded part formed by an extrusion molding method and a mold molding part formed by connection at the end of the extrusion molding part by a molding method;
A main body portion that is attached to a vehicle body or a sash provided on a door and has a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion that extend from both ends of the base portion, and the vehicle inner side A pair of seal lips that extend from the front ends of the side wall and the vehicle outer side wall to the inside of the main body and seal with the door glass, and a telescopic part that is formed on the base and can be extended and retracted in the vehicle interior and exterior. A glass run,
The expansion / contraction part of the extrusion molding part is formed while maintaining the contracted state in the vehicle interior / exterior direction,
At the end of the extrusion molding part, it is connected and formed to the mold molding part in a state where the contraction state of the expansion / contraction part is unwound and extended,
In the molded part, the stretchable part is formed in an extended state,
In the attached state to the sash, the stretchable part at the end of the extruded part and the stretchable part of the mold part are attached in a contracted state.   The end part of the extrusion molding part and the expansion / contraction part of the mold molding part are in contact with each other in the contracted state to form a hollow part when attached to the sash. The glass run described.

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