JP4385859B2 - Glass run - Google Patents

Description

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

  As shown in FIGS. 8A and 8B, the glass run 61 includes a base portion 62 and a main body portion 65 including a pair of side wall portions 63 and 64 extending from the base portion 62, and the both side wall portions 63 and 64. And a pair of seal lips 66 and 67 extending from the substantially distal end to the inside of the main body 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. 8 (a), a pair of side wall portions 63 and 64 are expanded with respect to the base portion 62 in both the extrusion molding portion and the die molding portion, that is, both side wall portions 63 and 64 are in the base portion. It is molded in a state where it is opened outward from the base portion with the portion 62 as a base point. This is due to the following reason. First, regarding the extrusion molding part, (1) in consideration of applying a predetermined lubricant to the inner peripheral surface of the base part 62 and the sliding surfaces of the glass of the seal lips 66 and 67, the molded part in an unfolded state. (2) If the seal lips 66 and 67 are close to each other, the seal lips 66 and 67 may be connected to each other immediately after molding, and this is to prevent it. On the other hand, with respect to the molded part, it is convenient to (1) make the shape follow the extruded part, and (2) to define the inner peripheral surfaces of the main body 65 and the seal lips 66 and 67 during the molding. It is necessary to set the core, but in the case of a mold having a cavity in which the seal lips 66 and 67 are close to each other, a thickness sufficient for a holding plate for holding the core unless it is molded in the expanded state. It is because it cannot be given.

  When the glass run 61 molded in the unfolded state as described above is attached to the sash S as shown in FIG. 8B, the side walls 63 and 64 are constricted 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 being attached to the sash S, each part of the mold forming part (corner part) is not uniformly deformed, and the bending angle (based on the stress at that time ( The radius of curvature, 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 an unfolded state in anticipation of such changes in angle, etc., but in this case, it is impossible to predict what angle change will occur, so many trials are made. The mistakes 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, in recent years, from the viewpoint of improving the functionality of the glass run, it is currently required to add further functions. However, when an extendable part is provided, for example, the impact noise when the door glass is closed is reduced. It has been difficult to provide other functions such as a lip for the purpose.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a glass run having an additional function in addition to the expansion / contraction function.

  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 body portion attached to a vehicle body or a sash provided on a door, and having a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion substantially orthogonal to the base portion;
A glass run including a pair of seal lips that extend from the vehicle inner side wall and the vehicle outer side wall to the inside of the main body and seals with the door glass,
Formed on the base, or formed so as to connect the base and the vehicle inner side wall or the vehicle outer side wall, and includes an extendable part that allows the main body to expand and contract in the vehicle interior and exterior directions,
In the contracted state of the stretchable part, by configuring the stretchable part itself to have a hollow shape or a lip shape,
Vibration regulation function that regulates lateral movement caused by door glass vibration,
A buffer function that reduces the impact generated between the end surface of the door glass and the bottom surface of the sash when the door glass is closed, and
A glass run having at least one additional function among wind noise suppression functions for suppressing wind noise generated in a gap between the sash and the glass run.

  According to the means 1, even if the glass run is molded with the main body portion having a substantially U-shaped cross section in the non-deployed state, both the seal lips can be formed if the stretchable portion is molded in a state of extending in and out of the vehicle. A glass run having an open space can be obtained. As a result, even when a predetermined lubricant is applied, it can be easily applied to the inner peripheral surface of the base and the sliding surface of the glass of the seal lip, and both the seal lips are connected immediately after molding. The fear can be reduced. In addition, with respect to the molded part, the holding plate for holding the core of the mold can have a sufficient thickness. Furthermore, since it is not necessary to rotate and narrow the side wall portion in the mold forming portion from the unfolded state during the mounting operation, the angle, curvature radius, circumference, etc. of the mold forming portion do not change before and after the attachment. . Therefore, it is possible to avoid the problem that it is impossible to mount the sash along the shape of the sash. 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.

Furthermore, by providing the expansion / contraction part with an additional function in addition to the expansion / contraction function, the functionality of the glass run can be remarkably improved relatively easily.
In particular, as the additional function, by providing a vibration restricting function for restricting the lateral movement due to the vibration of the door glass, the lateral movement due to the vibration of the door glass is restricted, and the sliding or contacting position of the door glass The functionality of the glass run can be improved by increasing the stability of the glass run.
Further, as the additional function, a glass run that reduces a collision sound based on the impact by providing a shock absorbing function that reduces an impact generated between the end surface of the door glass and the bottom surface of the sash when the door glass is closed. The functionality is improved.
Further, as the additional function, by providing a wind noise suppression function that suppresses wind noise generated in the gap between the sash and the glass run, the functionality of the glass run such as suppression of wind noise during traveling is improved. It is done.

Means 2 . The stretchable part is formed at a portion facing the end surface of the door glass of the base at least on the upper side of the glass run ,
In contracted state before Symbol stretchable portion, the base portion of both the opposing sides of the said telescopic portion is in contact, a hollow portion is formed by the collapsible portion in the surface facing the end surface of the door glass of the base unit ,
When the door glass is closed, the end surface of the door glass comes into contact with the hollow portion of the extendable portion, so that the impact generated between the end surface of the door glass and the bottom surface of the sash is reduced. The glass run according to Means 1, wherein

According to the means 2 , the same effect as the means 1 can be achieved, and the impact when the door glass is closed can be absorbed by the elastic force of the expansion / contraction part having the hollow part, and the collision sound based on the impact is reduced. Can be made. That is, the expansion / contraction part has an additional function as a buffer means, and the functionality of the glass run is improved. Moreover, when the said structure is employ | adopted, it also becomes possible to extract the air of a hollow part from the slight clearance gap which the base parts contact | abutted. For this reason, the expansion / contraction part does not take the deformation mode that the expansion / contraction part planned when the end surface of the door glass abuts, as in the case where the hollow part is sealed and the air does not escape. The possibility that the door glass is deformed can be reduced, and as a result, the problem that the door glass is displaced from the predetermined position in the closed state can be reduced. As a result, the contact position of the end surface of the door glass can be stabilized and the sealing performance can be improved. Furthermore, it is possible to omit the step of forming the air vent hole after the extrusion molding when a complete hollow portion is formed in the extrusion molding section or the like.
Moreover, the said expansion-contraction part connects a pair of support part each extended from the opposing surface with the end surface of the door glass in the both base parts which oppose on both sides of the said expansion-contraction part, and the front-end | tip parts of the said support part. It is good also as being comprised from a receiving part.
Thereby, when the end surface of a door glass contact | abuts to an expansion-contraction part, it contact | abuts to the said receiving part. That is, the front end portion of the door glass is held so as to be wrapped in the receiving portion while being supported by the pair of support portions. Therefore, unlike the case where the expansion / contraction part has a substantially circular cross section, the problem that the position of the door glass shifts due to the impact when the door glass abuts is less likely to occur, and the door glass is placed at a predetermined position. Can fit. As a result, it is possible to dramatically improve the positional stability when the door glass is closed.
Moreover, the said receiving part is good also as curving so that it may become concave with respect to the end surface of a door glass.
Thereby, the stability at the time of contact | abutting of the end surface of a door glass increases, and the said effect is further improved.

Means 3 . The extendable portion is formed in said base portion in at least the upper side portion of the glass run, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in a contracted state, it is lip-shaped and protrudes to the inside of the main body, and is configured to be in a state of being arranged between the end surface of the door glass and the base portion facing the end surface,
When the door glass is closed, the impact between the end surface of the door glass and the bottom surface of the sash is reduced by the end surface of the door glass coming into contact with the extendable portion. A glass run according to means 1 characterized.

According to the means 3 , the same effect as that of the means 1 can be achieved, and the impact when the door glass is closed can be absorbed by the expansion and contraction part protruding in a lip shape, and the collision sound based on the impact can be reduced. it can. That is, the expansion / contraction part has an additional function as a buffer means, and the functionality of the glass run is improved.
Moreover, the said expansion-contraction part is good also as a cross-section substantially V shape in the expansion | extension state, and being in the state folded in the contraction state.
Thereby, the expansion / contraction part becomes a lip shape at the time of contraction, and the above-described effect is more reliably exhibited. Moreover, it is good also as the thickness of the one side part of the vehicle inner side or vehicle outer side in an expansion-contraction part being thinner than the thickness of an other side part. In this way, due to the difference in the thickness of each side portion, when the stretchable portion contracts, the thin wall preferentially elastically deforms, so that the stretchable portion can be easily guided to a predetermined contracted state.

Means 4 . The telescopic part is provided so as to connect the vehicle interior side wall part and the base part ,
And the vehicle interior side wall portion and the base portion are spaced apart in the extended state of the telescopic unit, and consists to abut in the contracted state of the stretchable portion,
In the contracted state of the expansion / contraction part, a hollow part is formed by the expansion / contraction part inside the main body part, and the hollow part is located on the vehicle inner side from the door glass, so that the lateral movement due to the vibration of the door glass is performed. The glass run according to means 1, wherein the glass run is regulated .

According to the means 4 , the same effect as that of the means 1 can be achieved, and even when the door glass moves in the lateral direction due to vibration, the positional deviation of the door glass toward the inside of the vehicle can be regulated. As a result, it is possible to improve the flush surface required in recent years, that is, the flushing between the vehicle outer surface of the sash and the vehicle outer surface of the door glass from the viewpoint of improving the appearance quality and the like.
Moreover, the hollow part of the said expansion-contraction part may contact | abut to the back surface of the said seal lip inside a vehicle, and it is good also as a motion to the vehicle inside of the said door glass being controlled with the said seal lip inside the said vehicle.
Thereby, said effect is further heightened.
Moreover, the said expansion-contraction part is good also as elastic contact | abutting so that the stress to a vehicle outer side direction may be applied with respect to the seal lip of the said vehicle inner side.
Thereby, the effect of the said means 11 can be improved greatly by the elastic stress of an expansion-contraction part.
Further, “in the contracted state of the expansion / contraction part, a hollow part is formed by the expansion / contraction part inside the main body part, and the hollow part of the expansion / contraction part abuts on the inner side surface of the door glass when the door glass is closed. ”To restrict lateral movement due to vibration of the door glass.
You may do it. Thereby, while the same effect as the said means 1 is achieved, the position shift to the vehicle inside of a door glass can be controlled. As a result, it is possible to improve the flush surface required in recent years, that is, the flushing between the vehicle outer surface of the sash and the vehicle outer surface of the door glass from the viewpoint of improving the appearance quality and the like. Further, when the door glass is closed, the movement of the door glass is restricted by intentionally contacting the hollow side of the telescopic portion of the upper side of the glass run with the inner side surface of the door glass, and the sliding or contacting position of the door glass The functionality of the glass run can be improved by increasing the stability of the glass run. At this time, a slipping agent may be applied to the stretchable portion to enhance the slidability of the glass. Further, in this case, “the expansion and contraction portion may be in elastic contact with the door glass so as to apply a stress in the vehicle exterior direction”. Thereby, said effect can be improved greatly by the elastic stress of an expansion-contraction part.
Moreover, the said expansion-contraction part is good also as that the one end part is connected with the opposing surface with the end surface of the door glass in the said base part, and the other end part is connected with the wall surface of the said vehicle interior side wall part.
As a result, the hollow portion can be made relatively large as compared with the case where the expansion / contraction portion is connected to the end of the base portion or the side wall portion, and the connection portion between the expansion / contraction portion and the base portion is further outside the vehicle. The door glass can be brought closer to the outside of the vehicle more reliably. As a result, it is possible to further improve the regulation effect.

Means 5 . The extendable portion is formed in the base unit, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in a contracted state, the lip shape is formed and protrudes to the outside of the main body,
In the attached state of the glass run to the sash, the wind noise generated in the gap between the sash and the glass run is suppressed by the expansion and contraction portion coming into contact with the sash. The glass run according to means 1 characterized by the above .

According to the means 5 , the same effect as the means 1 can be achieved, and wind noise generated in the gap between the sash and the glass run can be suppressed.

Means 6 . The extendable portion is formed in said base portion in at least the upper side portion of the glass run, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in the contracted state, it consists of an inner component part that protrudes in a lip shape to the inside of the main body part, and an outer component part that protrudes in a lip shape to the outside of the main body part,
In the attached state of the glass run to the sash, the wind noise generated in the gap between the sash and the glass run is suppressed by the outer component part coming into contact with the sash,
When the door glass is closed, the inner component portion is disposed between the end surface of the door glass and the base portion facing the end surface, and comes into contact with the end surface of the door glass, thereby the end surface of the door glass. The glass run according to means 1, wherein an impact generated between the sash and the bottom surface of the sash is reduced .

According to the means 6, the same effect as the means 1 can be achieved, and the internal component can absorb the impact when the door glass is closed, and the collision sound based on the impact can be reduced. Moreover, the wind noise generated in the gap between the sash and the glass run can be suppressed by the external component.
  In addition, the inner component and the outer component may each have a substantially V-shaped cross section in the extended state, and the expandable portion may be configured to have a substantially pantograph shape (substantially rectangular shape) as a whole. Good.
  Further, the inner component part and the outer component part may be configured such that the thickness of one side of the vehicle inner side or the vehicle outer side is thinner than the thickness of the other side part.
  Thereby, due to the difference in the thickness of each side part, when the expansion / contraction part contracts, the thin wall is preferentially elastically deformed, so that the expansion / contraction part is easily guided to a predetermined contracted state.

Means 7 . The glass run according to any one of means 1 to 6 , wherein the stretchable part is formed thinner than the base part.

According to the means 7 , the stretchable part is easily contracted, and in the contracted state, the shape of the stretchable part, and thus the main body part, is easily maintained in an appropriate shape. As a result, the position of the door glass is stabilized, and the effects of the above means are more reliably exhibited.

Means 8. The stretchable part is extended in the vehicle interior / exit direction, and the main body part is molded in a state of a substantially U-shaped cross section in a non-deployed state,
Any one of means 1 to 7 , wherein the telescopic part is contracted in the vehicle interior / exterior direction, and the main body part is configured to be attached to the sash with a substantially U-shaped cross section in a non-deployed state. The glass run described in 1.

According to the means 8 , at the time of molding the glass run, the expansion / contraction part is extended in the vehicle interior / exterior direction, and the body part is open between the seal lips in a non-deployed state in a substantially U-shaped cross section. . Thereby, as described in the effect of the above means 1, even when a predetermined lubricant is applied, it can be easily applied to the inner peripheral surface of the base portion and the sliding surface of the glass of the seal lip. In addition, the possibility that both seal lips are connected to each other can be reduced. In addition, with respect to the molded part, the holding plate for holding the core of the mold can have a sufficient thickness. Furthermore, since it is not necessary to rotate and narrow the side wall portion in the mold forming portion from the unfolded state during the mounting operation, the angle, curvature radius, circumference, etc. of the mold forming portion do not change before and after the attachment. . Therefore, it is possible to avoid the problem that it is impossible to mount the sash along the shape of the sash. 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.

Means 9 . 9. The glass run according to any one of means 1 to 8 , wherein the mold forming part constitutes a corner part of the glass run arranged at a corner part of the sash.

According to the above means 9 , in the case of the mold forming part constituting the corner part, the angle of the mold forming 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.

[First Embodiment]
First, a first 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. 2B) having a substantially U-shaped cross section in accordance with the outer peripheral shape of the door glass, and the glass of the present embodiment is provided on the sash S. Run 1 is attached.

  The glass run 1 includes an extrusion molding portion 2 corresponding to the upper side portion of the sash S in the longitudinal direction, extrusion molding portions 3 and 4 corresponding to front and rear vertical side portions, and ends of the extrusion molding portions 2, 3 and 4. It is comprised from the shaping | molding parts 5 and 6 (part which attached | subjected the dot pattern in FIG. 1) which connects parts. 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. 2A and 2B, the extruded portions 2 to 4 and the molded portions 5 and 6 include a base portion 10 that is attached to the sash S and a vehicle inner side wall portion that extends from both ends of the base portion 10. 11 and a vehicle body side wall portion 12, and a main body portion 13 having a substantially U-shaped cross section. A pair of seal lips 14 and 15 for sealing is provided.

  Further, the base portion 10 is formed with a stretchable portion 16 that can be stretched in the vehicle interior / exit direction. However, the expansion / contraction part 16 is provided only in the base part 10 of the extrusion molding part 2 corresponding to the upper side part of the glass run 1, and the expansion / contraction part is provided in other parts (extrusion molding parts 3 and 4 and mold forming parts 5 and 6). It is good also as a structure which provided the expansion-contraction part of the form different from 16. FIG.

  More specifically, the stretchable portion 16 is a section Z from the position intersecting with the extension line along the vehicle inner side surface of the door glass G in the base portion 10 to the position intersecting with the extension line along the vehicle outer side surface. It is provided at a portion facing the end surface of the door glass G.

  Moreover, the expansion-contraction part 16 is thinner than the thickness of the base part 10, and each extends from the opposing surface 10a with the end surface of the door glass G in both the base parts 10 which oppose on both sides of the said expansion-contraction part 16. It is comprised from the support part 17 and the receiving part 18 which connects the front-end | tip parts of the support part 17. Both support portions 17 extend from the facing surface 10 a so as to reduce the distance from each other, and the receiving portion 18 is formed to be substantially parallel to the base portion 10.

  Furthermore, a notch 20 is formed inside each corner portion of the support portion 17 and the receiving portion 18, and a notch portion 21 is formed inside each corner portion of the support portion 17 and the base portion 10. Has been. Due to the presence of the notches 20 and 21, bending (bending) deformation is likely to occur at each corner. The receiving portion 18 is curved so as to be concave with respect to the end surface of the door glass G. In addition, an engagement protrusion 22 is provided on one of the contact portions of both base portions 10, and an engagement recess 23 in which the engagement protrusion 22 engages is provided on the other.

  As shown in FIG. 2 (a), the glass run 1 is molded in a state where the extruding parts 2-4 and the mold forming parts 5, 6 are extended in the vehicle interior / exit direction. Therefore, before the attachment to the sash S, the vehicle interior side wall portion 11 and the vehicle exterior side wall portion 12 have dimensions corresponding to the expansion of the expansion and contraction portion 16 while the main body portion 13 maintains a substantially U-shaped cross section in a non-deployed state. A predetermined opening amount W is ensured between the seal lips 14 and 15 in a state of being translated parallel to both sides.

  As shown in FIG. 2B, when the glass run 1 is attached to the sash S, the telescopic portion 16 is contracted to move the vehicle inner side wall portion 11 and the vehicle outer side wall portion 12 in parallel, and the main body portion 13 is not moved. The main body 13 can be easily fitted into the sash S while maintaining the substantially U-shaped cross section of the unfolded state.

  In this state, both base portions 10 facing each other with the expansion / contraction portion 16 in between are in contact with each other, and the engagement protrusion 22 is engaged with the engagement recess 23. And the expansion-contraction part 16 becomes a substantially triangular shape, and the hollow part 25 is formed by the expansion-contraction part 16 in the opposing surface 10a side with the end surface of the door glass G of the base part 10. FIG. Accordingly, the cross-sectional shape of the hollow portion 25 has a substantially triangular shape so as to gradually become wider downward. When the door glass G is closed, the end surface of the door glass G abuts on the expansion / contraction part 16 (receiving part 18).

  As described above in detail, the glass run 1 is formed in a state in which the expansion / contraction part 16 is extended in the vehicle interior / exterior direction and the main body part 13 has a substantially U-shaped cross section in a non-deployed state. The body portion 13 is attached to the sash S in a state where the body portion 13 is contracted in the vehicle interior and exterior direction and has a substantially U-shaped cross section in a non-deployed state. Therefore, when the glass run 1 is formed, the gap between the seal lips 14 and 15 is opened, and a predetermined opening amount W is secured between the seal lips 14 and 15. As a result, even when a predetermined lubricant is applied, it can be easily applied to the inner peripheral surface of the base 10 and the glass sliding surfaces of the seal lips 14 and 15. The possibility that they will be connected can be reduced. Further, with respect to the mold forming portions 5 and 6, the holding plate for holding the core of the mold can have a sufficient thickness. Furthermore, since it is not necessary to rotate and narrow the side wall portions 11 and 12 in the mold forming portions 5 and 6 from the unfolded state at the time of mounting work, the angle, curvature radius, circumference, etc. of the mold forming portions 5 and 6 can be reduced. There is no 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.

  Moreover, the elastic force of the expansion / contraction part 16 having the hollow part 25 can absorb an impact when the door glass G is closed, and a collision sound based on the impact can be reduced. That is, the expansion / contraction part 16 has an additional function (buffer function) as a buffer means, and the functionality of the glass run 1 is improved.

  Further, when the door glass G abuts, the air in the hollow portion 25 escapes through a slight gap where the base portions 10 abut against each other, so that the stretchable portion 16 is deformed as designed, and the door glass G is brought into a predetermined position. It will fit. Further, since the receiving portion 18 is curved so as to be concave with respect to the end surface of the door glass G, the end surface of the door glass G is held so as to be wrapped in the receiving portion 18 when the door glass G abuts. . Further, since the notches 20 and 21 are formed, the stretchable part 16 is easily deformed. With these configurations, it is difficult for the door glass G to be displaced due to an impact at the time of contact, and the door glass G can be stored in a predetermined position. As a result, it is possible to dramatically improve the position stability when the door glass G is closed. Furthermore, it is possible to omit the step of forming the air vent hole after the extrusion molding in the extrusion molding section 2 or the like.

[Second Embodiment]
Next, a second embodiment will be described with reference to the drawings. However, the detailed description of the same components as those in the first embodiment will be omitted, and only the stretchable part and the related parts will be described.

  As shown in FIG. 3A, the glass run 1 is provided with the vehicle interior side wall portion 11 and the base portion 10 spaced apart at the time of molding, and the vehicle interior side wall portion 11 and the base portion 10 are connected to expand and contract. A possible elastic part 31 is provided. And in the expansion | extension state of the expansion-contraction part 31, it is comprised so that the vehicle inner side wall part 11 and the base part 10 may space apart, and it may contact | abut in the contraction state of the expansion / contraction part 31, and the main-body part 13 can extend / contract at least inside and outside a vehicle. It is comprised so that it may become.

  The stretchable portion 31 is thinner than the thickness of the base portion 10, and one end portion thereof is connected to a surface 10 a facing the end surface of the door glass G of the base portion 10, and the other end portion of the vehicle interior side wall portion 11. It is connected to the inner wall.

  When attaching the glass run 1 to the sash S, as shown in FIG. 3 (b), the telescopic part 31 is contracted to move the vehicle inner side wall part 11 and the vehicle outer side wall part 12 in parallel, and the base 10 The vehicle inner end is brought into contact with the vehicle inner side wall 11. Then, the glass run 1 is fitted into the sash S while the main body 13 maintains a substantially U-shaped cross section in the non-deployed state.

  In this state, the hollow portion 32 is formed by the stretchable portion 31 inside the main body portion 13, and when the door glass G is closed, the hollow portion 32 is separated from the door glass G in the upper side portion of the glass run 1. It is located inside the vehicle from the door glass G.

  Accordingly, the door glass G can be contacted via the seal lip 14 on the vehicle inner side only when the door glass G moves in the vehicle inner direction due to vibration, and the positional deviation of the door glass G to the vehicle inner side can be regulated. That is, the expansion / contraction part 31 has a vibration regulating function. In addition, since the movement of the door glass G to the inside of the vehicle is regulated, the outer surface of the sash and the outside of the door glass from the viewpoint of the flash surface that is required in recent years, that is, from the viewpoint of improving the appearance quality, etc. It is possible to set the same level with the surface.

  Further, one end of the extendable portion 31 is connected to the facing surface 10 a of the base portion 10 facing the end surface of the door glass G, and the other end is connected to the inner wall surface of the vehicle interior side wall portion 11. For this reason, compared with the case where the expansion-contraction part is connected with the edge part of the base 10 or the vehicle interior side wall part 11, the hollow part 32 can be made comparatively large, and the improvement of the said control effect is aimed at further. Can do.

  In addition, in the vertical side part (extrusion molding part 3 and 4) of the glass run 1, the hollow part 32 of the expansion-contraction part 31 is the inside of a vehicle inside only when the door glass G moves to the vehicle inside direction during raising / lowering of the door glass G. You may make it contact | abut to the back surface of the seal lip 14, and the motion to the vehicle inner side of the door glass G with the seal lip 14 of the said vehicle inner side may be controlled. In this case, in the normal raising and lowering of the door glass G, the expansion / contraction part 31 is not in contact with the seal lip 14 on the inside of the vehicle, so there is no change in the force applied to the door glass G of the seal lip 14. There is no increase in the lifting load, and the door glass G can be raised and lowered smoothly.

  Further, as shown in FIGS. 4A and 4B, when the telescopic portion 31 is contracted, the inner surface of the door glass 1 so that the elastic portion 31 applies a stress to the door glass G toward the vehicle outer side. You may make it elastically contact. If it does in this way, the function of glass run, such as making the expansion-contraction part 31 contact the door glass G intentionally and restrict | limiting the movement of the door glass G, improving the stability of the sliding or contact position of the door glass G, etc. The improvement of the property is achieved. At this time, a sliding agent may be applied to the stretchable part 31 to enhance the sliding property of the door glass.

[Third Embodiment]
Next, a third embodiment will be described with reference to the drawings.

  At the upper side of the glass run 1, as shown in FIGS. 5 (a) and 5 (b), the base portion 10 is connected to the base portion 10 on the inner side of the portion facing the end surface of the door glass G (section Z). A stretchable portion 41 that can be stretched inward and outward is formed.

  The expansion / contraction part 41 is comprised from the inner variable part 41a connected to the near part of the opposing part with the end surface of the said door glass G, and the outer variable part 41b connected to a distant part, and is a main-body part in the expansion | extension state. 13 has a substantially V-shaped cross section that is convex toward the outside of the vehicle (the seal lip 15), and the entirety thereof is located on the inner side of the main body 13 rather than the facing surface 10a of the base 10 with the end surface of the door glass G. It protrudes. Further, the thickness of the stretchable part 21 is thinner than the thickness of the base part 10.

  As shown in FIG. 5B, when the glass run 1 is attached to the sash S, the telescopic portion 41 is contracted to move the vehicle inner side wall portion 11 and the vehicle outer side wall portion 12 in parallel, and the main body portion 13 is not moved. The main body 13 is fitted into the sash S while maintaining a substantially U-shaped cross-section in the expanded state.

  In this state, the expansion / contraction part 41 is folded so that the inner variable part 41a and the outer variable part 41b are overlapped, and is in a state of protruding into the main body part 13 in a lip shape. And the expansion-contraction part 41 will be in the state distribute | arranged between the end surface of the door glass G, and the opposing surface 10a of the base 10 facing the said end surface. Therefore, when the door glass G is closed, the end surface of the door glass G comes into contact with the expansion / contraction part 41.

  Thereby, the expansion-contraction part 41 can absorb the impact at the time of closing of the door glass G, and the collision sound based on the said impact can be reduced. That is, the expansion / contraction part 41 has an additional function as a buffer means, and the functionality of the glass run 1 is improved.

[Fourth Embodiment]
Next, a fourth embodiment will be described with reference to the drawings.

  In the upper side of the glass run 1, as shown in FIGS. 6 (a) and 6 (b), the base portion 10 is connected to the base portion 10 on the inner side of the portion facing the end surface of the door glass G (section Z). A stretchable portion 43 that can be stretched inward and outward is formed.

  The expansion / contraction part 43 is composed of an inner variable part 43a located near the opposite part of the end face of the door glass G and an outer variable part 43b located far away. It has a substantially inverted V-shaped cross section that protrudes toward the top, and protrudes outside the main body 13. The stretchable portion 43 is thinner than the thickness of the base portion 10 body, and the thickness t of the inner variable portion 43a is thinner than the thickness T of the outer variable portion 43b.

  As shown in FIG. 6B, when the glass run 1 is attached to the sash S, the telescopic portion 43 is contracted to move the vehicle inner side wall portion 11 and the vehicle outer side wall portion 12 in parallel, so that the main body portion 13 is not moved. The main body 13 is fitted into the sash S while maintaining a substantially U-shaped cross-section in the expanded state.

  Due to the difference in wall thickness between the variable parts 43a and 43b, the expansion / contraction part 43 is elastically deformed preferentially when the inner variable part 43a contracts, and tilts in the vehicle outward direction (the left direction in FIG. 6B, etc.). It becomes a state. In this state, the inner variable portion 43a and the outer variable portion 43b are folded so as to overlap with each other, forming a lip shape and projecting to the outside of the main body portion 13. Accordingly, the stretchable portion 43 contacts the sash S when the glass run 1 is attached to the sash S. Thereby, wind noise generated in the gap between the sash S and the glass run 1 can be suppressed. That is, the expansion / contraction part 43 has an additional function called a wind noise suppression function, and the functionality of the glass run 1 is improved.

[Fifth Embodiment]
Next, a fifth embodiment will be described with reference to the drawings.

  In the upper side of the glass run 1, as shown in FIGS. 7A and 7B, the base portion 10 is formed with a stretchable portion 45 that can be stretched in the vehicle interior / exit direction.

  The telescopic part 45 is composed of an inner component part 46 projecting inward of the main body part 13 and an outer component part 47 projecting outward of the main body part 13.

  The inner component part 46 is composed of an inner variable part 46a located near the opposite part of the end face of the door glass G and an outer variable part 46b located far away. It has a substantially V-shaped cross section that is convex toward the top, and protrudes to the inside of the main body 13. In addition, the inner component portion 46 is thinner than the thickness of the base 10 main body, and the thickness t of the inner variable portion 46a is thinner than the thickness T of the outer variable portion 46b.

  Similarly, the outer component part 47 is composed of an inner variable part 47a located near the opposite part of the end face of the door glass G, and an outer variable part 47b located far away. 13 has a substantially inverted V-shaped cross section that protrudes toward the outside of the main body 13 and protrudes outside the main body 13. Further, the outer configuration portion 47 is thinner than the thickness of the base portion 10 main body, and the thickness t of the inner variable portion 47a is thinner than the thickness T of the outer variable portion 47b.

  With the above configuration, the expansion / contraction part 45 has a substantially pantograph shape (substantially square shape) as a whole. Note that an air vent hole (not shown) is provided in the inner variable portion 46a or 47a for allowing the air in the substantially pantograph shape to escape when the telescopic portion 45 is deformed.

  As shown in FIG. 7B, when the glass run 1 is attached to the sash S, the telescopic portion 45 is contracted to move the vehicle inner side wall portion 11 and the vehicle outer side wall portion 12 in parallel, and the main body portion 13 is not moved. The main body 13 is fitted into the sash S while maintaining a substantially U-shaped cross-section in the expanded state.

  Due to the difference in thickness between the inner variable portions 46a and 47a and the outer variable portions 46b and 47b, the inner variable portions 46a and 47a have priority when contracting due to the difference in the thickness of the inner variable portions 46a and 47a. It is elastically deformed and is in a state of being inclined in the vehicle outward direction (the left direction in FIG. 7B, etc.).

  In this state, each of the components 46 and 47 is folded so that the inner variable portion 46a and the outer variable portion 46b, the inner variable portion 47a and the outer variable portion 47b are overlapped, and becomes a lip shape. It will be in the state which protruded in both inside and outside.

  Accordingly, the outer component 47 comes into contact with the sash S when the glass run 1 is attached to the sash S. Thereby, wind noise generated in the gap between the sash S and the glass run 1 can be suppressed. In addition, when the door glass G is closed, the inner component 46 is arranged between the end surface of the door glass G and the facing surface 10a of the base portion 10 facing the end surface. Will come into contact with the inner component 46. Thereby, the internal structure part 46 can absorb the impact at the time of the door glass G closing, and the collision sound based on the said impact can be reduced.

  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 (direction, etc.) of the contraction portion 16 and the like in each embodiment are not limited to the above-described embodiment.

  (C) The shapes and configurations of the engagement protrusions 22 and the engagement recesses 23 in each embodiment are not limited to the above-described embodiments. Of course, it is good also as a structure which abbreviate | omitted the engagement protrusion 22 and the engagement recessed part 23 grade | etc.,. Moreover, it is good also as a structure by which the latching | locking part was provided in one of both engaged, and the to-be-latched part by which the said latching | locking part is latched was provided in the other.

  (D) In the above embodiment, the glass run 1 is made of EPDM, but may be made of another material such as olefin-based thermoplastic elastomer (TPO) or soft polyvinyl chloride.

  (E) In the first embodiment, the expansion / contraction part 16 includes the support part 17 and the receiving part 18, and is formed so that the receiving part 18 is substantially parallel to the base part 10. Is configured such that a hollow portion 25 having a substantially triangular cross section is formed. Not limited to this, for example, there is no bent portion between the connecting portion with one base portion 10 and the connecting portion with the other base portion 10 so that the cross-sectional shape of the formed hollow portion is substantially circular. An elastic part may be adopted.

  Moreover, although the receiving part 18 is curving so that it may become concave with respect to the end surface of the door glass G, it is good not only as this but a structure that the receiving part 18 becomes substantially flat.

  (F) In the fourth and fifth embodiments, the inner variable portion 43a etc. is preferentially elastically deformed due to the difference in thickness between the inner variable portion 43a etc. and the outer variable portion 43b etc. It is comprised so that. Instead of this, or in addition to the notches 20 and 21 in the first embodiment, a notch having a substantially concave cross section as a notch is provided in the vicinity of the root of the inner variable portion 43a, etc. It is good also as a structure which a deformation | transformation of the variable part 43a etc. is encouraged. Of course, the same applies to other embodiments.

It is a figure which shows the whole structure of a glass run. FIG. 2 is a cross-sectional view taken along the line KK of FIG. 1, (a) is a cross-sectional view showing a glass run before attachment in an embodiment, and (b) is a cross-sectional view showing the glass run after attachment. (A) is sectional drawing which shows the glass run before attachment in one Embodiment, (b) is sectional drawing which shows the glass run after attachment. (A) is sectional drawing which shows the glass run before attachment in one Embodiment, (b) is sectional drawing which shows the glass run after attachment. (A) is sectional drawing which shows the glass run before attachment in one Embodiment, (b) is sectional drawing which shows the glass run after attachment. (A) is sectional drawing which shows the glass run before attachment in one Embodiment, (b) is sectional drawing which shows the glass run after attachment. (A) is sectional drawing which shows the glass run before attachment in one Embodiment, (b) is sectional drawing which shows the glass run after attachment. (A) is sectional drawing which shows the glass run before the attachment in a prior art, (b) is sectional drawing which shows the glass run after attachment.

DESCRIPTION OF SYMBOLS 1 ... Glass run, 2, 3, 4 ... Extrusion part, 5, 6 ... Molding part, 10 ... Base part, 10a ... Opposite surface with the end surface of door glass, 11 ... Car inner side wall part, 12 ... Outer side Side wall part, 13 ... main body part, 14, 15 ... seal lip, 16 ... telescopic part, 17 ... support part, 18 ... receiving part, 25 ... hollow part, S ... sash, G ... door glass, W ... opening amount, Z ... Section (opposite part of the end face of the door glass).

Claims (6)

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 body portion attached to a vehicle body or a sash provided on a door, and having a substantially U-shaped cross section including a base portion and a vehicle inner side wall portion and a vehicle outer side wall portion substantially orthogonal to the base portion;
A glass run including a pair of seal lips that extend from the vehicle inner side wall and the vehicle outer side wall to the inside of the main body and seals with the door glass,
Formed on the base, or formed so as to connect the base and the vehicle inner side wall or the vehicle outer side wall, and includes an extendable part that allows the main body to expand and contract in the vehicle interior and exterior directions,
In the contracted state of the stretchable part, by configuring the stretchable part itself to have a hollow shape or a lip shape,
Vibration regulation function that regulates lateral movement caused by door glass vibration,
A buffer function that reduces the impact generated between the end surface of the door glass and the bottom surface of the sash when the door glass is closed, and
A glass run having at least one additional function among wind noise suppression functions for suppressing wind noise generated in a gap between the sash and the glass run. The stretchable part is formed at a portion facing the end surface of the door glass of the base at least on the upper side of the glass run ,
In contracted state before Symbol stretchable portion, the base portion of both the opposing sides of the said telescopic portion is in contact, a hollow portion is formed by the collapsible portion in the surface facing the end surface of the door glass of the base unit ,
When the door glass is closed, the end surface of the door glass comes into contact with the hollow portion of the extendable portion, so that the impact generated between the end surface of the door glass and the bottom surface of the sash is reduced. The glass run according to claim 1, wherein: The extendable portion is formed in said base portion in at least the upper side portion of the glass run, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in a contracted state, it is lip-shaped and protrudes to the inside of the main body, and is configured to be in a state of being arranged between the end surface of the door glass and the base portion facing the end surface,
When the door glass is closed, the impact between the end surface of the door glass and the bottom surface of the sash is reduced by the end surface of the door glass coming into contact with the extendable portion. The glass run of claim 1, wherein The telescopic part is provided so as to connect the vehicle interior side wall part and the base part ,
And the vehicle interior side wall portion and the base portion are spaced apart in the extended state of the telescopic unit, and consists to abut in the contracted state of the stretchable portion,
In the contracted state of the expansion / contraction part, a hollow part is formed by the expansion / contraction part inside the main body part, and the hollow part is located on the vehicle inner side from the door glass, so that the lateral movement due to the vibration of the door glass is performed. The glass run according to claim 1, wherein the glass run is regulated . The extendable portion is formed in the base unit, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in a contracted state, the lip shape is formed and protrudes to the outside of the main body,
In the attached state of the glass run to the sash, the wind noise generated in the gap between the sash and the glass run is suppressed by the expansion and contraction portion coming into contact with the sash. The glass run according to claim 1 . The extendable portion is formed in said base portion in at least the upper side portion of the glass run, or is formed so as to articulate with said vehicle interior side wall portion or the vehicle exterior side wall portion and the base portion Rutotomoni,
At least in the contracted state, it consists of an inner component part that protrudes in a lip shape to the inside of the main body part, and an outer component part that protrudes in a lip shape to the outside of the main body part,
In the attached state of the glass run to the sash, the wind noise generated in the gap between the sash and the glass run is suppressed by the outer component part coming into contact with the sash,
When the door glass is closed, the inner component portion is disposed between the end surface of the door glass and the base portion facing the end surface, and comes into contact with the end surface of the door glass, thereby the end surface of the door glass. The glass run according to claim 1 , wherein an impact generated between the sash and the bottom surface of the sash is reduced .

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