Glass run and waist seal

Abstract

To provide a glass run and a waist seal which are capable of obtaining high vibration suppression effect of a door glass while securing a good ascending property of the door glass.SOLUTION: A glass run and waist seal according to the present invention comprises: an auxiliary member 23 and first and second auxiliary members 33, 34 corresponding to an auxiliary member containing a dilatant fluid. This configuration enables securing smooth rise / fall movement of the door glass DG within an allowable fluctuation range caused by vehicle variation, while enabling reducing or quickly attenuating vibration (amplitude) of the door glass DG with respect to a large (quick) input exceeding the allowable fluctuation range.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a glass run and a waist seal that are applied to an automobile door glass and that are used to slide or hold the door glass. [Background technology]

[0002] To give an overview, a conventional glass run GR has a generally U-shaped base 20 consisting of a base bottom 201, an interior side wall 202, and an exterior side wall 203, as shown in Figure 17, and a pair of seal lips, an interior seal lip 21 and an exterior seal lip 22, extending from the tips of the both side walls 202, 203 respectively toward the inside of the base.

[0003] Furthermore, the conventional glass run GR is provided with a sub-lip 27 on the base 201 side (root side) of the interior side wall 202, which faces the interior seal lip 21 in a free state and is sandwiched between the interior seal lip 21 and the interior side wall 202 when the door glass DG is in a sliding state. That is, according to the conventional glass run GR, when the door glass DG is significantly displaced toward the interior of the vehicle and the interior seal lip 21 is significantly deflected and deformed, the interior seal lip 21 and the sub-lip 27 cooperate to support the door glass DG, thereby suppressing rattling of the door glass DG. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5100029 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional glass run GR, if the reaction force of the sub-lip 27 is increased to suppress the large fluttering of the door glass DG that occurs, for example, when the door is closed with the door glass DG half-open, the vibration of the door glass DG can be effectively suppressed.However, when the position of the door glass DG in the vehicle width direction varies due to variations in the dimensions of the vehicle and door panel, the increased reaction force of the sub-lip 27 causes excessive sliding resistance of the door glass DG, reducing the ability of the door glass DG to be raised and lowered, so there was still room for improvement.

[0006] The present invention was devised with an eye on such technical issues, and aims to provide a glass run and a waist seal that can achieve a high vibration suppression effect for the door glass while ensuring good lifting and lowering ability of the door glass. [Means for solving the problem]

[0007] In one aspect, the glass run of the present invention comprises a base portion having a substantially U-shaped cross section, the base portion consisting of an interior side wall portion and an exterior side wall portion extending from both ends of the base portion in the vehicle width direction, an interior seal lip and an exterior seal lip extending from the tip ends of the both side walls toward the inside of the base and arranged to be in sliding contact with the door glass that moves up and down inside the base along the longitudinal direction of the both side walls, and an auxiliary member formed from a dilatant fluid and abutting against the interior seal lip when the interior seal lip is flexed and deformed toward the interior of the vehicle.

[0008] In this way, the door glass can be supported by the auxiliary member made of dilatant fluid. Therefore, within the range caused by vehicle variations, the dilatant fluid constituting the auxiliary member flexibly deforms, and there is no risk of excessively increasing the sliding resistance of the door glass. This ensures smooth movement of the door glass up and down.

[0009] On the other hand, if the displacement of the door glass exceeds the range caused by the vehicle variations, the dilatant fluid constituting the auxiliary member becomes hard instantaneously, which makes it possible to instantly increase the reaction force of the auxiliary member, thereby reducing and quickly damping the vibration (amplitude) of the door glass.

[0010] Here, as a preferred embodiment of the glass run according to the present invention, it is desirable that the auxiliary member is provided on the inner surface of the interior side wall portion and abuts against the tip end of the interior seal lip when the interior seal lip is flexed and deformed toward the interior of the vehicle.

[0011] In this way, by configuring the auxiliary member to abut against the tip end of the interior seal lip, the interior seal lip does not abut against the auxiliary member when the interior seal lip is positioned on the exterior side of the vehicle, and only abuts against the auxiliary member when the interior seal lip is pressed toward the interior side by a predetermined amount. This makes it possible to reduce the initial reaction force of the interior seal lip, and effectively reduces the sliding resistance of the door glass within a range caused by vehicle variations.

[0012] In addition, as a further preferred embodiment of the glass run according to the present invention, it is desirable that the glass run further comprises a sub-lip extending from the inner surface of the interior side wall portion toward the inside of the base and elastically contacting the interior seal lip when the interior seal lip is flexed and deformed toward the interior of the vehicle, and that the auxiliary member is provided on the surface of the sub-lip facing the interior seal lip and contacting the interior seal lip when the interior seal lip is flexed and deformed toward the interior of the vehicle.

[0013] In this way, by arranging the auxiliary member on the surface of the sub-lip facing the interior seal lip and between the sub-lip and the interior seal lip, it is possible to delay the change in the reaction force of the sub-lip, which prevents the reaction force of the sub-lip from increasing significantly within the range of movement of the door glass in the vehicle width direction due to vehicle variations, and ensures smooth movement of the door glass up and down.

[0014] On the other hand, when a force large enough to exceed the range of movement of the door glass in the vehicle width direction based on the vehicle variations occurs to the interior seal lip, the dilatant fluid constituting the auxiliary member hardens instantaneously, and the deflection deformation of the interior seal lip is transmitted directly to the sub-lip via the auxiliary member, thereby instantaneously increasing the reaction force of the sub-lip and accelerating the change in reaction force of the sub-lip. This reduces the vibration (amplitude) of the door glass and allows it to be quickly damped.

[0015] Furthermore, according to the present invention, since the sub-lip is provided at the base, a reaction force can be generated by the interior seal lip and the sub-lip. While this may increase the vibration (amplitude) of the door glass by the amount of deflection of the sub-lip, the reaction force of the sub-lip acts in addition to the interior seal lip, so that the vibration of the door glass can be more quickly damped and converged.

[0016] In addition, as a further preferred aspect of the glass run according to the present invention, it is desirable that the auxiliary member is provided on the inner surface of the interior side wall portion and abuts against the root portion of the interior seal lip when the interior seal lip is flexed and deformed toward the interior of the vehicle.

[0017] In this way, by disposing the auxiliary member at the base of the interior seal lip, it is possible to increase the initial reaction force of the interior seal lip. In this case, although the initial reaction force of the interior seal lip is increased, the dilatant fluid constituting the auxiliary member flexibly (gently) deforms when the door glass is raised or lowered, so there is no risk of the reaction force increasing significantly within the range of movement of the door glass in the vehicle width direction due to vehicle variations, and it is possible to ensure smooth raising and lowering of the door glass.

[0018] On the other hand, when a large force is applied to the interior seal lip that exceeds the range of movement of the door glass in the vehicle width direction based on the vehicle variations, the dilatant fluid that makes up the auxiliary member instantaneously hardens, instantly increasing the reaction force of the auxiliary member and reducing the vibration (amplitude) of the door glass.In addition, the increase in the initial reaction force has the advantage of effectively suppressing the initial vibration of the door glass in particular.

[0019] In one aspect, the waist seal of the present invention comprises a mounting base attached to an interior door panel or a door trim that covers the interior door panel, a seal lip that extends from the mounting base toward the exterior of the vehicle and makes sliding contact with the door glass to seal between the interior door panel or the door trim and the door glass, and an auxiliary member that is formed from a dilatant fluid and is provided on the exterior side of the mounting base so as to face the seal lip, and that abuts against the seal lip when the seal lip is flexed and deformed toward the interior of the vehicle.

[0020] In this way, the door glass can be supported by the auxiliary member made of dilatant fluid. Therefore, within the range caused by vehicle variations, the dilatant fluid constituting the auxiliary member flexibly deforms, and there is no risk of excessively increasing the sliding resistance of the door glass. This ensures smooth movement of the door glass up and down.

[0021] On the other hand, if the displacement of the door glass exceeds the range caused by the vehicle variations, the dilatant fluid constituting the auxiliary member becomes hard instantaneously, which makes it possible to instantly increase the reaction force of the auxiliary member, thereby reducing and quickly damping the vibration (amplitude) of the door glass.

[0022] Here, as a preferred embodiment of the waist seal according to the present invention, it is desirable that the seal lips are provided in plurality on the vehicle exterior side of the mounting base facing the door glass, along the direction of up and down movement of the door glass, and that the auxiliary members are provided in plurality so as to face each of the seal lips, and abut against each of the seal lips when each of the seal lips is flexed and deformed toward the vehicle interior.

[0023] In this way, multiple auxiliary members are provided facing each seal lip, respectively, and the reaction force of each seal lip when it is deflected can be adjusted by the auxiliary members, thereby ensuring smooth movement of the door glass up and down without significantly increasing the sliding resistance of each seal lip against the door glass.

[0024] On the other hand, even if the displacement of the door glass exceeds the range caused by the vehicle variations, the dilatant fluid constituting each auxiliary member instantly hardens, thereby instantly increasing the reaction force of each auxiliary member, thereby effectively reducing and quickly damping the vibration (amplitude) of the door glass. [Effects of the Invention]

[0025] According to the present invention, the door glass is supported by auxiliary members made of dilatant fluid. Therefore, within a range due to vehicle variations, the dilatant fluid constituting the auxiliary members flexibly deforms, ensuring smooth movement of the door glass up and down. However, when the displacement of the door glass exceeds the range due to vehicle variations, the dilatant fluid constituting each auxiliary member instantaneously hardens, thereby reducing and quickly attenuating the vibration (amplitude) of the door glass. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a front view of a door to which a glass run according to the present invention is attached. [Figure 2]2 is a diagram showing a first embodiment of the glass run according to the present invention, and is a cross-sectional view taken along line AA in FIG. 1. FIG. [Figure 3] 1 is a cross-sectional view of the first embodiment of the waist seal according to the present invention taken along line BB in FIG. 1; [Figure 4] 1A and 1B are diagrams showing the state of the glass run when the door glass vibrates, in which (a) is the state where the door glass is located at the outermost position of the vehicle, (b) is the state where the door glass is located at the center, (c) is the state where the door glass is located at the innermost position of the vehicle within the allowable range of fluctuation, and (d) is the cross-sectional view of the glass run showing the state where the door glass is located at the innermost position of the vehicle. [Figure 5] 3 is a graph showing the reaction force characteristics of the glass run shown in FIG. 2. [Figure 6] 3 is a graph showing the amplitude and attenuation characteristics of the glass run shown in FIG. 2. [Figure 7] FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a modified example of the first embodiment of the glass run according to the present invention. [Figure 8] 1A and 1B are diagrams showing the state of the glass run when the door glass vibrates, in which (a) is the state where the door glass is located at the outermost position of the vehicle, (b) is the state where the door glass is located at the center, (c) is the state where the door glass is located at the innermost position of the vehicle within the allowable range of fluctuation, and (d) is the cross-sectional view of the glass run showing the state where the door glass is located at the innermost position of the vehicle. [Figure 9] 8 is a graph showing the reaction force characteristics of the glass run shown in FIG. 7. [Figure 10] FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a second embodiment of the glass run according to the present invention. [Figure 11] 1A and 1B are diagrams showing the state of the glass run when the door glass vibrates, in which (a) is the state where the door glass is located at the outermost position of the vehicle, (b) is the state where the door glass is located at the center, (c) is the state where the door glass is located at the innermost position of the vehicle within the allowable range of fluctuation, and (d) is the cross-sectional view of the glass run showing the state where the door glass is located at the innermost position of the vehicle. [Figure 12] 11 is a graph showing the reaction force characteristics of the glass run shown in FIG. 10. [Figure 13]11 is a graph showing the amplitude and attenuation characteristics of the glass run shown in FIG. 10. [Figure 14] FIG. 2 is a cross-sectional view of a second embodiment of a waist seal according to the present invention, taken along line BB in FIG. 1. [Figure 15] 1A and 1B are diagrams showing the state of the glass run when the door glass vibrates, in which (a) is the state where the door glass is positioned at the outermost position of the vehicle, (b) is the state where the door glass is positioned at the outermost position of the vehicle within the allowable range of fluctuation, (c) is the state where the door glass is positioned at the center, and (d) is a cross-sectional view of the glass run showing the state where the door glass is positioned at the innermost position of the vehicle. [Figure 16] 1 is a graph showing the reaction force characteristics of a conventional glass run using an auxiliary member made of a sponge material. [Figure 17] 10A and 10B are diagrams showing the state of the glass run when the door glass vibrates, in which (a) is the state where the door glass is positioned at the outermost position of the vehicle, (b) is the state where the door glass is positioned at the center, (c) is the state where the door glass is positioned further inward than the allowable range of movement and the sub-lip is abutting the inner side wall portion of the base, and (d) is a cross-sectional view of the glass run showing the state where the door glass is positioned at the innermost position of the vehicle. [Figure 18] 1 is a graph showing the reaction force characteristics of a conventional glass run using a sub-lip. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, each embodiment in which the glass run and waist seal according to the present invention are applied to an automobile front door (hereinafter simply referred to as "door") 1 will be described in detail with reference to the drawings. For ease of explanation, in each of the following embodiments, the top and bottom of the vehicle body installation state will be used as the reference, and the upper side of FIG. 1, which corresponds to the upper side in the vertical direction, will be defined as "upper," and the lower side of FIG. 1, which corresponds to the lower side in the vertical direction, will be defined as "lower."

[0028] (Door configuration) FIG. 1 shows a front view of a door 1 to which a glass run 2 according to the present invention is attached.

[0029] As shown in Fig. 1, the door 1 has a door body 11 and a door sash 12 that is connected to the door body 11 and extends upward in an arch shape from a door waist portion 13 of the door body 11. A glass opening W is formed between the door body 11 and the door sash 12, and a glass run 2 is attached to the periphery of this glass opening W.

[0030] The glass run 2 has a pair of extruded vertical side portions 2a, 2b and an upper side portion 2c connecting the vertical side portions 2a, 2b, and the vertical side portions 2a, 2b are connected to the upper side portion 2c by molded portions 2d, 2e, respectively. The glass run 2 serves the functions of guiding the door glass DG when it is raised and lowered, absorbing vibrations of the door glass DG when the vehicle is moving and when the door 1 is closed, and ensuring watertight and airtight sealing between the door glass DG and the door sash 12.

[0031] In addition, a pair of waist seals, an inside waist seal (corresponding to the waist seal according to the present invention) 3 and an outside waist seal 4, are arranged on the inside and outside of the door waist opening 130 of the door body 11, facing each other across the door glass DG.

[0032] The door glass DG appears and disappears from the door waist opening 130 that opens upward, and is arranged so as to be movable up and down along the vertical sides 121, 122 of the door sash 12 that extend in the up and down direction. The door glass DG moves up and down based on the power output from a window regulator (see symbol WR in FIG. 3) mounted inside the door main body 11.

[0033] [First embodiment] 2 to 6 show a first embodiment of a glass run and a waist seal according to the present invention.

[0034] (Graslin composition) FIG. 2 is a cross section of the vertical side portion 121 of the glass run 2 according to the first embodiment of the present invention, taken along line AA in FIG.

[0035] 2, the vertical side portion 121 of the door sash 12 has a substantially U-shaped cross section formed by integrally bending a bottom wall 121a, an interior side wall 121b, and an exterior side wall 121c. The interior side wall 121b is connected to an interior door panel (not shown), and the exterior side wall 121c is connected to an exterior door panel (not shown).

[0036] The glass run 2 has a generally U-shaped cross section (transverse cross section) perpendicular to the longitudinal direction, and is formed as a continuous, long, integral piece by extrusion molding a thermoplastic resin such as a thermoplastic elastomer (TPE). The glass run 2 includes a base 20 attached to the door sash 12, and an interior seal lip 21 and an exterior seal lip 22 that extend opposite each other inside the base 20 and elastically contact the interior and exterior sides of the door glass DG, respectively.

[0037] The base 20 has a base bottom 201 fixed to the bottom surface of the door sash, and an interior side wall 202 and an exterior side wall 203 that extend in a substantially straight line and bend from the interior end and exterior end of the base 201, respectively, and these are integrally formed. The base 201 is made of a different material from the interior seal lip 21 and the exterior seal lip 22, specifically, a thermoplastic resin that has relatively higher rigidity than the interior seal lip 21 and the exterior seal lip 22.

[0038] The interior side wall portion 202 has an interior molding lip 204 that is folded back on the outer side of the tip end in the direction opposite to the interior seal lip 21 and that elastically contacts the flange portion 123a of the interior side wall 123 of the door sash 12. Furthermore, the interior side wall portion 202 is provided with an interior holding lip 206 on the outer surface on the base portion 201 side that cooperates with the interior molding lip 204 to hold the flange portion 123a of the interior side wall 123 of the door sash 12 in a clamping state.

[0039] The exterior side wall portion 203 has an exterior molding lip 205 that is folded back on the outer side of the tip end in the direction opposite to the exterior seal lip 22 and that elastically contacts the flange portion 124a of the exterior side wall 124 of the door sash 12. Furthermore, the exterior side wall portion 203 has an exterior holding lip 207 on the outer surface on the base portion 201 side that cooperates with the exterior molding lip 205 to hold the flange portion 124a of the exterior side wall 124 of the door sash 12 in a clamping state.

[0040] The interior seal lip 21 is formed in a folded shape from the inside of the tip end of the interior side wall portion 202 and extends in a curved shape toward the base bottom portion 201. The interior seal lip 21 is formed to be relatively shorter than the interior seal lip 21. On the other hand, the exterior seal lip 22 is formed in a folded shape from the inside of the tip end of the exterior side wall portion 203 so as to face the interior seal lip 21 and extends in a generally straight shape toward the base bottom portion 201. When the door glass DG is lowered, the interior seal lip 21 and the exterior seal lip 22 abut against and face each other as shown by the solid lines in FIG. 2, while when the door glass DG is raised, they are pushed aside by the door glass DG and come into elastic contact with the inner and outer surfaces of the door glass DG as shown by the phantom lines in FIG. 2.

[0041] Further, an auxiliary member 23 is provided on the inner surface of the interior side wall portion 202. The auxiliary member 23 is pushed toward the interior of the vehicle by the door glass DG when the door glass DG rises, and is capable of elastically contacting the tip end of the interior seal lip 21. The auxiliary member 23 is formed integrally with the interior side wall portion 202 using a dilatant fluid, is provided continuously along the longitudinal direction of the interior side wall portion 202, and is formed so that its cross section is substantially rectangular in its free state. Note that the auxiliary member 23 can naturally have any cross-sectional shape depending on the specifications of the glass run 2 (for example, the shape of the interior seal lip 21 and the reaction force characteristics required of the auxiliary member 23), and may be formed integrally with the interior side wall portion 202 by extrusion molding, or may be fixed to the interior side wall portion 202 by a fixing means such as vulcanization adhesion.

[0042] (Waist seal configuration) FIG. 3 is a cross-sectional view showing a first embodiment of the waist seal (interior waist seal 3) according to the present invention, taken along line BB in FIG.

[0043] As shown in Figure 3, an interior waist seal 3, which corresponds to the waist seal according to the present invention, is attached to a door trim 15 that covers an inner door panel 14 of the door panels that form the door waist opening 130. On the other hand, an exterior waist seal 4 that forms a pair with the interior waist seal 3 and seals between the door outer panel 16 and the door glass DG is attached to the door outer panel 16 that forms the door waist opening 130.

[0044] The interior waist seal 3 has an attachment base 30 for attachment to the door trim 15, and a pair of first and second seal lips 31 and 32 that protrude generally parallel to each other in two upper and lower stages from the attachment base 30, and these are integrally formed.

[0045] The mounting base 30 is formed in a generally plate shape from a synthetic resin material that is relatively hard compared to a rubber material, and is attached to the door trim 15 via a clip portion 301 that protrudes and is formed on an inner surface 30a that faces the door trim 15 and is on the side opposite to the first and second seal lips 31, 32. Specifically, the mounting base 30 is attached and fixed to the door trim 15 such that the door trim 15 is sandwiched between the mounting base 30 and the locking protrusion 301b of the clip portion 301 by locking a locking protrusion 301a that is provided in a generally hook shape on the tip side of the shaft portion 301a of the clip portion 301 with the edge of a locking hole (not shown) that is formed through the door trim 15.

[0046] The first seal lip 31 and the second seal lip 32 are both made of a relatively soft foam sponge rubber material and are provided on the outer surface 30b of the mounting base 30 so as to extend obliquely upward. Furthermore, in a free state in which the door glass DG is in a lowered position, the first seal lip 31 and the second seal lip 32 face the first seal lip 41 and the second seal lip 42 of the outer-vehicle waist seal 4 in a non-contact state, as shown by the solid lines in Fig. 3. On the other hand, in a deflected state in which the door glass DG is in a raised position, the first seal lip 31 and the second seal lip 32 are pressed by the door glass DG and come into elastic contact with the inner surface of the door glass DG, as shown by the imaginary lines in Fig. 3.

[0047] Further, a first auxiliary member 33 is provided on the outer surface 30b of the mounting base 30 at a position facing the inner surface of the tip of the first seal lip 31. The first auxiliary member 33 is capable of elastically contacting the tip of the first seal lip 31 that is pushed toward the interior of the vehicle by the door glass DG when the door glass DG rises. Similarly, a second auxiliary member 34 is provided on the outer surface 30b of the mounting base 30 at a position facing the inner surface of the tip of the second seal lip 32. The second auxiliary member 34 is capable of elastically contacting the tip of the second seal lip 32 that is pushed toward the interior of the vehicle by the door glass DG when the door glass DG rises.

[0048] Like the auxiliary member 23, the first auxiliary member 33 and the second auxiliary member 34 are both continuously provided along the longitudinal direction of the mounting base 30 using the same dilatant fluid and are formed integrally with the mounting base 30 by vulcanization bonding or the like. The first auxiliary member 33 and the second auxiliary member 34 are formed so that their cross sections are approximately rectangular in their free state. Note that the first auxiliary member 33 and the second auxiliary member 34 can both adopt any cross-sectional shape depending on the specifications of the interior waist seal 3 (for example, the shapes of the first seal lip 31 and the second seal lip 32, and the reaction force characteristics required of the first auxiliary member 33 and the second auxiliary member 34).

[0049] The vehicle exterior waist seal 4 has an attachment base 40 for attachment to the door outer panel 16, and a pair of first and second seal lips 41 and 42 that protrude generally parallel to each other in two upper and lower stages from the attachment base 40, and these are integrally formed.

[0050] The mounting base 40 is formed from a hard solid rubber material such as EPDM, has an inverted U-shaped cross section, and is attached to the door outer panel 16 by clamping the upper end of the door outer panel 16.

[0051] The first seal lip 41 and the second seal lip 42 are both extruded from a foam sponge rubber material that is softer than the solid rubber material forming the mounting base 40, and are provided so as to extend obliquely upward from the inner surface 40b of the mounting base 40. Furthermore, in a free state in which the door glass DG is lowered, the first seal lip 41 and the second seal lip 42 face the first seal lip 31 and the second seal lip 32 of the interior waist seal 3 in a non-contact state, as shown by the solid lines in Fig. 3. On the other hand, in a deflected and deformed state in which the door glass DG is raised, the first seal lip 41 and the second seal lip 42 are pressed by the door glass DG and come into elastic contact with the outer surface of the door glass DG, as shown by the imaginary lines in Fig. 3.

[0052] (Effects of this embodiment) In the conventional glass run GR, flapping of the door glass DG is suppressed by supporting the interior seal lip 21 in the following manner, for example.

[0053] FIG. 15 is a cross-sectional view showing the state of a conventional glass run GR when the door glass DG vibrates, where (a) shows the state in which the door glass DG is located at the outermost position in the vehicle width direction, (b) shows the state in which the door glass DG is located at the outermost position within the allowable fluctuation range R in the vehicle width direction, (c) shows the state in which the door glass DG is located at the center of the allowable fluctuation range R in the vehicle width direction, and (d) shows the state in which the door glass DG is located at the innermost position in the vehicle width direction. FIG. 16 is a graph showing the reaction force characteristics of a conventional glass run GR with an auxiliary member 26 added, where point a represents the state in FIG. 15(a), point b represents the state in FIG. 15(b), point c represents the state in FIG. 15(c), and point d represents the state in FIG. 15(d). The allowable fluctuation range R shown in FIG. 16 indicates the range in which variation in the door glass DG can be tolerated when the door glass DG moves up and down, including manufacturing and installation errors of the door glass DG. In addition, the solid line L1 shown in Figure 16 indicates the reaction force characteristics of the interior seal lip 21 when the auxiliary member 26 is added, and the imaginary line L2 indicates the reaction force characteristics of the interior seal lip 21 when the auxiliary member 26 is not added.

[0054] In the conventional glass run GR, as one way of suppressing fluttering of the door glass DG, for example, as shown in Figure 15, an auxiliary member 26 made of a sponge material was provided on the inner surface of the interior side wall portion 202 of the vehicle, which elastically contacted the inner surface of the tip of the interior seal lip 21 that was pressed toward the interior of the vehicle by the door glass DG when the door glass DG rose, and provided auxiliary support for the sliding contact of the interior seal lip 21 with the door glass DG.

[0055] In this configuration, by adding the auxiliary member 26, the reaction force of the interior seal lip 21 increases gradually due to the reaction force of the interior seal lip 21 alone until the interior seal lip 21 abuts against the sub-lip 27 (from point a to point b in FIG. 16 ), and after the interior seal lip 21 abuts against the auxiliary member 26 (from point b to point d in FIG. 16 ), the reaction force F of the interior seal lip 21 increases significantly due to the resultant force of the interior seal lip 21 and the auxiliary member 26. In this way, by adding the auxiliary member 26, the timing at which the reaction force F of the interior seal lip 21 increases is accelerated compared to when the auxiliary member 26 is not added, and it becomes possible to quickly suppress fluttering of the door glass DG from a state in which the door glass DG is located within the allowable fluctuation range R.

[0056] However, on the other hand, the addition of the auxiliary member 26 made of a sponge material increases the reaction force F of the interior seal lip 21 when the door glass DG is positioned within the allowable fluctuation range R (see the hatched area H in FIG. 16 ). For this reason, when the position of the door glass DG in the vehicle width direction varies due to, for example, variations in the dimensions of the vehicle or door panel, the increase in the reaction force F of the auxiliary member 26 causes the sliding resistance of the door glass DG to become excessive, resulting in a decrease in the ability of the door glass DG to be raised and lowered, and there is still room for improvement.

[0057] FIG. 17 is a cross-sectional view showing the state of a conventional glass run GR when the door glass DG vibrates, where (a) shows a state in which the door glass DG is located at the outermost position in the vehicle width direction, (b) shows a state in which the door glass DG is located at the center of the allowable fluctuation range R in the vehicle width direction, (c) shows a state in which the door glass DG is located further inward than the allowable fluctuation range R in the vehicle width direction, and (d) shows a state in which the door glass DG is located at the innermost position in the vehicle width direction. FIG. 18 is a graph showing the reaction force characteristics of a conventional glass run GR with a sub-lip 27 added, where point a represents the state in FIG. 17(a), point b represents the state in FIG. 17(b), point c represents the state in FIG. 17(c), and point d represents the state in FIG. 17(d). The allowable fluctuation range R shown in FIG. 18 indicates the range in which variation in the door glass DG can be tolerated during vertical movement, including manufacturing and installation errors of the door glass DG. In addition, the solid line L1 shown in Figure 18 indicates the reaction force characteristics of the interior seal lip 21 when the sub-lip 27 is added, and the imaginary line L2 indicates the reaction force characteristics of the interior seal lip 21 when the sub-lip 27 is not added.

[0058] In addition, in the conventional glass run GR, as another method of suppressing fluttering of the door glass DG, for example, as shown in Figure 17, a sub-lip 27 is provided on the inner surface of the interior side wall portion 202 of the vehicle, which elastically contacts the inner surface of the tip of the interior seal lip 21 that is pressed toward the interior of the vehicle by the door glass DG when the door glass DG rises, and provides auxiliary support for the sliding contact of the interior seal lip 21 with the door glass DG.

[0059] In this configuration, by adding the sub-lip 27, until the interior seal lip 21 abuts against the sub-lip 27 (point a to point b in Figure 18), the reaction force F of the interior seal lip 21 increases gradually due to the reaction force F of the interior seal lip 21 alone, and from after the interior seal lip 21 abuts against the sub-lip 27 until the sub-lip 27 abuts against the interior side wall portion 202 (point b to point c in Figure 18), the reaction force F of the interior seal lip 21 increases by one stage due to the sub-lip 27, and thereafter, after the sub-lip 27 abuts against the interior side wall portion 202 (point c to point d in Figure 18), the reaction force F of the interior seal lip 21 increases by another stage due to the resultant force of the interior seal lip 21 and the sub-lip 27. In this way, by adding the sub-lip 27, the timing at which the reaction force F of the interior seal lip 21 increases is brought forward compared to when the sub-lip 27 is not added, and therefore it is possible to quickly suppress fluttering of the door glass DG from a state in which the door glass DG is positioned within the allowable fluctuation range R. Moreover, with this configuration, the reaction force characteristics of the door glass DG increase in two stages, so it is possible to suppress the increase in the reaction force F of the interior seal lip 21 compared to when the auxiliary member 26 is added.

[0060] However, on the other hand, the addition of the sub-lip 27 increases the reaction force F of the interior seal lip 21 to a certain extent even when the door glass DG is positioned within the allowable fluctuation range R (see the hatched area H in FIG. 18 ). Therefore, even in this embodiment, when the position of the door glass DG in the vehicle width direction varies due to, for example, variations in the dimensions of the vehicle or door panel, the increase in the reaction force F of the sub-lip 27 increases the sliding resistance of the door glass DG, and the ability to move the door glass DG up and down is reduced to a certain extent, so there is still room for improvement.

[0061] 4A and 4B are cross-sectional views showing the state of the glass run GR according to the present embodiment when the door glass DG vibrates, in which (a) shows the state in which the door glass DG is located at the outermost position in the vehicle width direction, (b) shows the state in which the door glass DG is located at the center of the allowable fluctuation range R in the vehicle width direction, (c) shows the state in which the door glass DG is located at the innermost position within the allowable fluctuation range R in the vehicle width direction, and (d) shows the state in which the door glass DG is located at the innermost position in the vehicle width direction. FIG. 5 is a graph showing the reaction force characteristics of the glass run GR according to the present embodiment, with point a representing the state in FIG. 4A, point b representing the state in FIG. 4B, point c representing the state in FIG. 4C, and point d representing the state in FIG. 4D. The allowable fluctuation range R shown in FIG. 5 indicates the range in which variations in the door glass DG can be tolerated during vertical movement, including manufacturing and installation errors of the door glass DG. Further, the solid line L1 shown in Fig. 5 indicates the reaction force characteristics of the interior seal lip 21 according to this embodiment, and the imaginary line L2 indicates the reaction force characteristics of the interior seal lip 21 in a state where the auxiliary member 23 is not added. Fig. 6 is a graph showing the amplitude and damping characteristics of the glass run GR shown in Fig. 2. Note that the solid line L1 shown in Fig. 6 indicates the damping characteristics of the interior seal lip 21 according to this embodiment, and the imaginary line L2 indicates the damping characteristics of the interior seal lip 21 in a state where the auxiliary member 23 is not added.

[0062] As shown in Fig. 4, the glass run GR according to this embodiment supports the door glass DG with an auxiliary member 23 formed of a dilatant fluid. Therefore, as shown in Fig. 5, within the allowable range R of variation due to vehicle variations (points a to c in Fig. 4), the dilatant fluid constituting the auxiliary member 23 flexibly deforms, eliminating the risk of excessively increasing the sliding resistance of the door glass DG. This ensures smooth movement of the door glass DG up and down.

[0063] On the other hand, when a large (fast) input is applied such that the displacement of the door glass DG exceeds the allowable fluctuation range R (point d in FIG. 4), the dilatant fluid constituting the auxiliary member 23 instantaneously hardens, thereby instantaneously increasing the reaction force F of the interior seal lip 21. As a result, as shown in FIG. 6, the glass run GR according to this embodiment, indicated by the solid line L1, can reduce the vibration (amplitude) of the door glass DG by the difference Wx between the amplitude W1 of L1 and the amplitude W2 of L2, compared to the conventional glass run GR, indicated by the imaginary line L2. Furthermore, by reducing the amplitude W1, the convergence time T1 of the amplitude W1 can also be shortened by the difference Tx between the convergence time T1 of L1 and the convergence time T2 of L2.

[0064] As described above, the glass run GR of this embodiment uses the auxiliary member 23 made of dilatant fluid to ensure smooth up and down movement of the door glass DG within the allowable fluctuation range R, while reducing and quickly damping the vibration (amplitude) of the door glass DG in response to large (fast) inputs that exceed the allowable fluctuation range R.

[0065] Furthermore, in this embodiment, as shown in Figure 4, an auxiliary member 23 is provided on the inner surface of the interior side wall portion 202, and is configured to abut against the tip end of the interior seal lip 21 when the interior seal lip 21 is flexed and deformed toward the interior of the vehicle.

[0066] Therefore, when the interior seal lip 21 is located on the exterior side of the vehicle, the interior seal lip 21 does not come into contact with the auxiliary member 23. In other words, in the present embodiment, the interior seal lip 21 comes into contact with the auxiliary member 23 only after being pressed toward the interior side of the vehicle by a predetermined amount. This makes it possible to reduce the initial reaction force of the interior seal lip 21, and effectively reduce the sliding resistance of the door glass DG within the allowable fluctuation range R.

[0067] In addition, in this embodiment, the interior waist seal 3 also has auxiliary members (first and second auxiliary members 33, 34) on the outer surface 30b of the mounting base 30, which are arranged opposite the inner surfaces of the tip ends of the seal lips (first and second seal lips 31, 32) and are capable of elastically contacting the tip ends of the seal lips (first and second seal lips 31, 32).

[0068] As described above, in this embodiment, similar to the glass run GR, auxiliary members (first and second auxiliary members 33, 34) are also arranged on the interior waist seal 3. Therefore, the auxiliary member 23 made of dilatant fluid ensures smooth up and down movement of the door glass DG within the allowable fluctuation range R, while reducing and quickly damping the vibration (amplitude) of the door glass DG in a range beyond the allowable fluctuation range R.

[0069] Moreover, in this embodiment, a plurality of first and second auxiliary members 33, 34 serving as auxiliary members are provided to face the first and second seal lips 31, 32, respectively, and the first and second auxiliary members 33, 34 can adjust the reaction force F when the seal lips 31, 32 are deflected. Therefore, the auxiliary members 33, 34 ensure smooth movement of the door glass DG up and down without significantly increasing the sliding resistance of the door glass DG. Meanwhile, when an input is applied that causes the displacement of the door glass DG to exceed the allowable range R, which is a range due to vehicle variations, the dilatant fluid constituting the auxiliary members 33, 34 momentarily hardens, thereby momentarily increasing the reaction force F of the auxiliary members 33, 34, thereby effectively reducing and quickly damping the vibration (amplitude) of the door glass DG.

[0070] (Variation) 7 to 9 show modified examples of the first embodiment of the glass run according to the present invention. This modified example is mainly characterized by a change in the arrangement of the auxiliary member 23, and other configurations are the same as those of the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed explanations thereof will be omitted.

[0071] (Graslin composition) FIG. 7 shows a cross section of the vertical side portion 121 of the glass run 2 according to a modified example of the first embodiment of the present invention, taken along line AA in FIG.

[0072] 7, in the glass run GR according to this modification, an auxiliary member 23 made of a dilatant fluid and having a substantially rectangular cross section is provided on the inner surface of the interior sidewall portion 202 at a position where it can come into contact with the base portion of the interior seal lip 21 when the interior seal lip 21 is flexibly deformed toward the interior of the vehicle. As with the first embodiment, the specific shape of the auxiliary member 23 can of course be any cross-sectional shape depending on the specifications of the glass run 2 (for example, the shape of the interior seal lip 21 and the reaction force characteristics required of the auxiliary member 23), and the auxiliary member may be formed integrally with the interior sidewall portion 202 by extrusion molding, or may be fixed to the interior sidewall portion 202 by a fixing means such as vulcanization adhesion.

[0073] (Effects of this transformation) 8A and 8B are cross-sectional views showing the state of the glass run GR according to this modified example when the door glass DG vibrates, where (a) shows the state in which the door glass DG is located at the outermost position in the vehicle width direction, (b) shows the state in which the door glass DG is located at the center of the allowable range R of fluctuation in the vehicle width direction, (c) shows the state in which the door glass DG is located at the innermost position within the allowable range R of fluctuation in the vehicle width direction, and (d) shows the state in which the door glass DG is located at the innermost position in the vehicle width direction. FIG. 9 is a graph showing the reaction force characteristics of the glass run GR according to this modified example, where point a indicates the state in FIG. 8A, point b indicates the state in FIG. 8B, point c indicates the state in FIG. 8C, and point d indicates the state in FIG. 8D. The allowable range R of fluctuation shown in FIG. 9 indicates the range in which variation in the door glass DG can be tolerated during vertical movement, including manufacturing and installation errors of the door glass DG. Also, the solid line L1 shown in Figure 9 indicates the reaction force characteristics of the interior seal lip 21 according to this embodiment, and the imaginary line L2 indicates the reaction force characteristics of the interior seal lip 21 in a state in which the auxiliary member 23 is not added.

[0074] As shown in FIG. 8, the glass run GR according to this embodiment supports the door glass DG with an auxiliary member 23 made of a dilatant fluid. Therefore, as shown in FIG. 9, within the allowable range R of variation due to vehicle variations (points a to c in FIG. 8), the dilatant fluid constituting the auxiliary member 23 flexibly deforms, eliminating the risk of excessively increasing the sliding resistance of the door glass DG. This ensures smooth movement of the door glass DG up and down. Meanwhile, in response to a large (fast) input that causes the displacement of the door glass DG to exceed the allowable range R of variation (point d in FIG. 8), the dilatant fluid constituting the auxiliary member 23 momentarily hardens, instantly increasing the reaction force F of the interior seal lip 21 and thereby reducing the vibration (amplitude) of the door glass DG.

[0075] As described above, with the glass run GR of this modified example, as with the first embodiment, the auxiliary member 23 made of dilatant fluid ensures smooth up and down movement of the door glass DG within the allowable fluctuation range R, while reducing and quickly damping the vibration (amplitude) of the door glass DG in response to large (fast) inputs that exceed the allowable fluctuation range R.

[0076] Furthermore, in this modified example, as shown in Figure 8, an auxiliary member 23 is provided on the inner surface of the interior side wall portion 202, and is configured to abut against the root portion of the interior seal lip 21 when the interior seal lip 21 is flexed and deformed toward the interior of the vehicle.

[0077] As a result, the interior seal lip 21 abuts against the auxiliary member 23 when the door glass DG is positioned at the outermost side of the vehicle, thereby increasing the initial reaction force Fs of the interior seal lip 21. On the other hand, the dilatant fluid constituting the auxiliary member 23 flexibly deforms in response to small (gentle) inputs when the door glass DG moves up and down, thereby ensuring smooth movement of the door glass DG up and down. This makes it possible to suppress the initial movement of the door glass DG when it vibrates, and effectively reduce the vibration (amplitude) of the door glass DG, without sacrificing smooth movement of the door glass DG up and down.

[0078] [Second embodiment] (Graslin composition) 10 to 13 show a second embodiment of the glass run according to the present invention. This embodiment mainly adds a sub-lip 27 and arranges an auxiliary member 23 on the sub-lip 27, but other configurations are the same as those of the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

[0079] FIG. 10 shows a cross section of a vertical side portion 121 of a glass run 2 according to a second embodiment of the present invention, taken along line AA in FIG.

[0080] As shown in Figure 10, in the glass run GR of this embodiment, a sub-lip 27 is provided on the inner surface of the interior side wall portion 202 of the vehicle, which elastically contacts the inner surface of the tip of the interior seal lip 21, which is pressed toward the interior of the vehicle by the door glass DG when the door glass DG rises, thereby auxiliary supporting the sliding contact of the interior seal lip 21 with the door glass DG.

[0081] Furthermore, in the glass run GR according to this embodiment, an auxiliary member 23 made of a dilatant fluid similar to that of the first embodiment and having a substantially rectangular cross section is provided on the outer surface of the tip end of the sub-lip 27. Note that, in this embodiment as well, the specific form of the auxiliary member 23 can of course be any cross-sectional shape depending on the specifications of the glass run 2 (for example, the shape of the interior seal lip 21, the reaction force characteristics required of the auxiliary member 23, etc.), as in the first embodiment, and the auxiliary member 23 may be formed integrally with the sub-lip 27 by extrusion molding, or may be fixed to the sub-lip 27 by a fixing means such as vulcanization adhesion.

[0082] (Waist seal configuration) 11 shows a second embodiment of the waist seal according to the present invention. This embodiment is different from the first embodiment in that the configuration of the mounting base 30 is mainly changed, and the other configurations are the same as those of the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed explanations thereof will be omitted.

[0083] FIG. 11 is a cross-sectional view showing a second embodiment of the waist seal (interior waist seal 3) according to the present invention, taken along line BB in FIG.

[0084] As shown in Figure 11, in this embodiment, the mounting base 30 of the interior waist seal 3 is made of a hard solid rubber material such as EPDM, has an inverted U-shaped cross section, and is attached to the door inner panel 14 so as to sandwich the upper end of the door inner panel 14.

[0085] In this embodiment, a hollow seal base 302 extending in the longitudinal direction is provided on the vehicle exterior side of the mounting base 30. A pair of first and second seal lips 31 and 32 are formed on the vehicle exterior side surface of the seal base 302, protruding and formed generally parallel to each other in two upper and lower stages, and are formed integrally with the seal base 302. The first seal lip 31 is provided at the upper end of the inner surface of the seal base 302, and the second seal lip 32 is provided at the lower end of the inner surface of the seal base 302.

[0086] In this embodiment, a sub-lip 35, which extends upward and has a tip end that can elastically contact the door trim 15, is formed integrally with the seal base 302 at the outer end of the upper end of the seal base 302. In other words, the sub-lip 35 elastically contacts the door trim 15, thereby sealing the gap between the door inner panel 14 and the door trim 15.

[0087] Furthermore, in this embodiment, the first auxiliary member 33 that is capable of elastically contacting the first seal lip 31 according to the first embodiment is eliminated on the vehicle exterior side of the seal base 302, and only the second auxiliary member 34 that is capable of elastically contacting the second seal lip 32 is provided. Note that, in this embodiment as well, the specific form of the second auxiliary member 34 can naturally adopt any cross-sectional shape depending on the specifications of the glass run 2 (for example, the shape of the interior seal lip 21, the reaction force characteristics required of the second auxiliary member 33, etc.), as in the first embodiment, and the second auxiliary member 34 may be formed integrally with the seal base 302 by extrusion molding, or may be fixed to the seal base 302 by a fixing means such as vulcanization adhesion.

[0088] On the other hand, the first seal lip 31 does not have the first auxiliary member 33 and is instead configured to be able to abut against the middle portion of the sub-lip 25 that is pushed outward by the elastic contact of the door trim 15. That is, when the door glass DG is displaced significantly toward the interior of the vehicle and the first seal lip 31 is significantly deformed, for example, when the door glass DG vibrates, the first seal lip 31 and the sub-lip 35 cooperate to support the door glass DG, thereby suppressing rattling of the door glass DG. In other words, to suppress vibration of the door glass DG, the interior waist seal 3 may be configured so that one of the multiple seal lips 31, 32 is supported by the sub-lip 35 and the other is supported by an auxiliary member (for example, the second auxiliary member 34).

[0089] (Effects of this embodiment) 12A and 12B are cross-sectional views showing the state of the glass run GR according to this embodiment when the door glass DG vibrates, where (a) shows the state in which the door glass DG is located at the outermost position in the vehicle width direction, (b) shows the state in which the door glass DG is located at the center of the allowable fluctuation range R in the vehicle width direction, (c) shows the state in which the door glass DG is located at the innermost position within the allowable fluctuation range R in the vehicle width direction, and (d) shows the state in which the door glass DG is located at the innermost position in the vehicle width direction. FIG. 13 is a graph showing the reaction force characteristics of the glass run GR according to this embodiment, where point a indicates the state in FIG. 12A, point b indicates the state in FIG. 12B, point c indicates the state in FIG. 12C, and point d indicates the state in FIG. 12D. The allowable fluctuation range R shown in FIG. 13 indicates the range in which variations in the door glass DG can be tolerated during vertical movement, including manufacturing and installation errors of the door glass DG. Further, the solid line L1 shown in Fig. 13 indicates the reaction force characteristics of the interior seal lip 21 according to this embodiment, and the imaginary line L2 indicates the reaction force characteristics of the interior seal lip 21 in a state where the auxiliary member 23 is not added. Fig. 14 shows a graph representing the amplitude and damping characteristics of the glass run GR shown in Fig. 10. Note that the solid line L1 shown in Fig. 14 indicates the damping characteristics of the interior seal lip 21 according to this embodiment, and the imaginary line L2 indicates the damping characteristics of the interior seal lip 21 in a state where the auxiliary member 23 is not added.

[0090] As shown in Fig. 12, the glass run GR according to this embodiment supports the door glass DG by an auxiliary member 23 made of the dilatant fluid and integral with the sub-lip 27. Therefore, as shown in Fig. 13, within the allowable range R of variation due to vehicle variations (points a to c in Fig. 13), the dilatant fluid constituting the auxiliary member 23 flexibly deforms, eliminating the risk of excessively increasing the sliding resistance of the door glass DG. This ensures smooth movement of the door glass DG up and down.

[0091] On the other hand, when a large (fast) input is applied such that the displacement of the door glass DG exceeds the allowable fluctuation range R (point d in FIG. 13 ), the sub-lip 27 flexes and deforms, increasing the reaction force F of the interior seal lip 21 (points c to e in FIG. 13 ). After the sub-lip 27 contacts the interior sidewall portion 202, the dilatant fluid constituting the auxiliary member 23 instantaneously hardens, instantly significantly increasing the reaction force F of the interior seal lip 21. As a result, as shown in FIG. 14 , the glass run GR according to this embodiment, indicated by the solid line L1, can reduce the vibration (amplitude) of the door glass DG by the difference Wx′ between the amplitude W1 of L1 and the amplitude W2 of L2, compared to the conventional glass run GR, indicated by the imaginary line L2. Furthermore, by reducing the amplitude W1, the convergence time T1 of the amplitude W1 can also be shortened by the difference Tx′ between the convergence time T1 of L1 and the convergence time T2 of L2. In particular, in this embodiment, since the auxiliary member 23 is provided on the sub-lip 27, the reaction force F of the sub-lip 27 is added to the hardening phenomenon of the auxiliary member 23, and the damping property of the door glass DG can be improved compared to the first embodiment (Tx>Tx').

[0092] As described above, even with the glass run GR of this embodiment, the auxiliary member 23 made of dilatant fluid ensures smooth up and down movement of the door glass DG within the allowable fluctuation range R, while reducing and quickly damping the vibration (amplitude) of the door glass DG in response to large (fast) inputs that exceed the allowable fluctuation range R.

[0093] Furthermore, in this embodiment, the sub-lip 27 extends from the inner surface of the interior side wall portion 202 toward the inside of the base 20 and elastically abuts against the interior seal lip 21 when the interior seal lip 21 is flexed and deformed toward the interior of the vehicle, and the auxiliary member 23 is provided on the surface of the sub-lip 27 facing the interior seal lip 21 and is configured to abut against the interior seal lip 21 when the interior seal lip 21 is flexed and deformed toward the interior of the vehicle.

[0094] In this way, by arranging the auxiliary member 23 on the surface of the sub-lip 27 facing the interior seal lip 21 and between the sub-lip 27 and the interior seal lip 21, it is possible to delay the change in the reaction force of the sub-lip 27. This prevents the reaction force F of the sub-lip 27 from increasing significantly within the allowable fluctuation range R, and ensures smooth movement of the door glass DG up and down.

[0095] On the other hand, when a large input force that exceeds the allowable fluctuation range R is applied to the interior seal lip 21, the dilatant fluid constituting the auxiliary member 23 instantaneously hardens, and the deflection deformation of the interior seal lip 21 is transmitted directly to the sub-lip 27 via the auxiliary member 23, thereby instantaneously increasing the reaction force F of the sub-lip 27 and accelerating the change in reaction force of the sub-lip 27. This reduces the vibration (amplitude) of the door glass DG and allows it to be quickly damped.

[0096] Furthermore, in this embodiment, the sub-lip 27 is provided on the base 20, so that the reaction force F can be generated by the interior seal lip 21 and the sub-lip 27. As a result, there is a possibility that the vibration (amplitude) of the door glass DG will increase by the amount of flexural deformation of the sub-lip 27, but the reaction force F of the sub-lip 27 acts in addition to the interior seal lip 21, so that the vibration of the door glass DG can be more quickly damped and converged.

[0097] The present invention is not limited to the configuration disclosed in the above embodiment, and specific aspects of the details that are not directly related to the technical features of the present invention, such as the material and shape of the base 20 of the glass run GR, the interior seal lip 21 and the exterior seal lip 22, the material and shape of the mounting base 30 and the first and second seal lips 31, 32 of the interior waist seal 3, and the material and shape of the mounting base 40 and the first and second seal lips 41, 42 of the exterior waist seal 4, can be freely changed depending on the specifications of the vehicle body to which the present invention is applied, within the scope that does not deviate from the intent of the present invention. [Explanation of symbols]

[0098] 1. Door 14...Inside door panel 15...Door trim 16...Outside door panel 2...Graslin 20…Base 201...basal part 202...Inside wall of the vehicle 203...Exterior side wall of the vehicle 21...Inside seal lip 22...Outside seal lip 23...Auxiliary parts 27...Sublip 3...Inside car waist seal (waist seal) 30...Mounting base 31...First seal lip 32...Second seal lip 33...First auxiliary member 34...Second auxiliary member 35...Sublip 4...Exterior waist seal DG...Door glass

Claims

1. a base portion having a substantially U-shaped cross section, the base portion including an interior side wall portion and an exterior side wall portion extending from both ends of the base portion in the vehicle width direction; an interior seal lip and an exterior seal lip extending from the tip ends of the side wall portions toward the inside of the base portion, respectively, and provided to be in sliding contact with the door glass that moves up and down inside the base portion along the longitudinal direction of the side wall portions; an auxiliary member formed of a dilatant fluid and coming into contact with the interior seal lip when the interior seal lip is deflected and deformed toward the interior of the vehicle; and the auxiliary member flexibly deforms the dilatant fluid in response to an input that falls within an allowable fluctuation range, which is an allowable range for fluctuations of the door glass during lifting and lowering, thereby suppressing an increase in the reaction force of the interior seal lip, and the dilatant fluid instantly becomes rigid in response to an input that exceeds the allowable fluctuation range, thereby instantaneously increasing the reaction force of the interior seal lip. A glass run characterized by:

2. The glass run according to claim 1, the auxiliary member is provided on an inner surface of the interior side wall portion and comes into contact with a leading end of the interior seal lip when the interior seal lip is deflected and deformed toward the interior of the vehicle. A glass run characterized by:

3. The glass run according to claim 1, a sub-lip extending from an inner surface of the interior side wall portion toward the inside of the base portion and elastically contacting the interior seal lip when the interior seal lip is flexibly deformed toward the interior of the vehicle, the auxiliary member is provided on a surface of the sub-lip facing the interior seal lip, and comes into contact with the interior seal lip when the interior seal lip is deflected and deformed toward the interior of the vehicle. A glass run characterized by:

4. The glass run according to claim 1, the auxiliary member is provided on an inner surface of the interior side wall portion and comes into contact with a root portion of the interior seal lip when the interior seal lip is deflected and deformed toward the interior of the vehicle. A glass run characterized by:

5. a mounting base that is attached to an interior door panel or a door trim that covers the interior door panel; a seal lip extending from the mounting base toward the vehicle exterior and coming into sliding contact with the door glass that moves up and down to seal between the vehicle interior door panel or the door trim and the door glass; an auxiliary member made of a dilatant fluid, provided on the vehicle exterior side surface of the mounting base so as to face the seal lip, and coming into contact with the seal lip when the seal lip is deflected and deformed toward the vehicle interior; and When an input falls within an allowable fluctuation range, which is an allowable range for fluctuations of the door glass during vertical movement, the dilatant fluid flexibly deforms to suppress an increase in the reaction force of the seal lip, and when an input exceeds the allowable fluctuation range, the dilatant fluid instantly becomes rigid to instantly increase the reaction force of the seal lip. A waist seal characterized by:

6. 6. The waist seal of claim 5, The seal lip is provided on a vehicle exterior side surface of the mounting base facing the door glass along a direction in which the door glass moves up and down. a plurality of the auxiliary members are provided to face each of the seal lips, and come into contact with each of the seal lips when the seal lips are deflected and deformed toward the vehicle interior; A waist seal characterized by:

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