Belt molding for vehicle door

The belt molding for vehicle doors addresses sliding noise and vibration issues by incorporating a skeleton body with notches in the hollow lip, effectively managing lip reaction force and maintaining stable sealing.

JP2026020682APending Publication Date: 2026-02-10TOUWA IND CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
JP2024122141
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

Vehicle door belt moldings experience abnormal sliding noise and door glass vibration issues due to varying compression amounts of the seal lip, especially when using hollow lips, which affect the lip reaction force and holding force.

Method used

The belt molding features a skeleton body with a hollow lip and notch portions that allow for controlled bending, reducing the lip reaction force and preventing abnormal sliding noise while maintaining effective door glass holding.

Benefits of technology

The design suppresses abnormal sliding noise and prevents door glass vibration by managing the lip reaction force through notches, ensuring stable sealing and reduced noise even with high lip reaction forces.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026020682000001_ABST
    Figure 2026020682000001_ABST
Patent Text Reader

Abstract

To suppress sliding noise to a door glass even when a hollow lip is adopted as a seal lip in the first place, and to surely prevent the swing of the door glass even when traveling by increasing the area of the door glass exposed to a window part in the second place.SOLUTION: The hollow lip 12 includes a glass-side hollow lip portion 11b extending upward from a skeleton inner body 12a1 and having a glass sliding contact surface 12a in contact with the door glass 24, and a skeleton body-side hollow lip portion 11b extending from a position above the glass-side hollow lip portion 12a in the skeleton inner body 12a while facing the glass-side hollow lip portion 12b. The skeleton body side hollow lip part side 12b is provided with a first notch part side 12b11 and a second notch part side 12b21 formed to be easily bent by thinning and weakening the wall thickness.SELECTED DRAWING: Figure 2
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a belt molding for a vehicle door that is attached to the upper edge of a door panel of a vehicle door. [Background technology]

[0002] Generally, belt moldings such as outer belt moldings and inner belt moldings are attached to the window portions of door panels of vehicles such as four-wheeled automobiles. The outer belt molding is attached to the upper edge of the door panel on the vehicle's exterior side, while the inner belt molding is attached to the upper edge of the door panel on the vehicle's interior side. Each of these moldings has the function of improving the sealing of the door glass that moves up and down to open and close the door window, as well as suppressing vibration of the door glass.

[0003] Such vehicle door belt moldings typically have a framework that is attached to the door panel and multiple lips that protrude from the framework toward the door glass, and some have been proposed that have hollow lips as sealing lips that come into contact with the door glass to form a seal (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-20141 [Patent Document 2] Japanese Utility Model Application Publication No. 52-2815 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, in a belt molding for a vehicle door, the compression amount (deflection amount) of the seal lip when the door glass is raised or lowered generally varies within a range of approximately 0 to 6.0 mm, taking into consideration variations in the mounting of the molding on the vehicle door and the curvature and size of the door glass that rises and falls. In other words, as the door glass is raised, the tip of the seal lip is gradually pushed toward the outside of the vehicle by the door glass, and when the door glass is raised to a stop and the window is in a fully closed state, it moves a maximum of approximately 6 mm from the window fully open state when the door glass is lowered to the lowest position.

[0006] Therefore, when the seal lip is compressed as the door glass rises, the lip reaction force against the door glass increases suddenly, causing the so-called stick-slip phenomenon at the contact surface between the seal lip and the door glass, resulting in the problem of abnormal sliding noise.In particular, when a hollow lip with high lip reaction force is used as the seal lip, the abnormal sliding noise is likely to occur.

[0007] On the other hand, if the lip reaction force of the seal lip is small, the holding force of the seal lip on the door glass will decrease, causing another problem: the door glass will vibrate more when the vehicle is traveling. This problem of door glass vibrating is not much of a problem when the door glass is lowered, but when the door glass is fully raised and the window is closed, or when a small ventilation gap is left between the top edge of the door glass and the door sash, increasing the area of ​​the door glass exposed to the window, the wind resistance that the door glass experiences will increase, and in such cases, if the holding force of the seal lip on the door glass is weak, the door glass will tend to vibrate more easily.

[0008] Therefore, the present invention has been made to solve these problems, and its object is to provide a belt molding for a vehicle door that, first, suppresses sliding noise against the door glass even when a hollow lip is used as the sealing lip, and second, reliably prevents the door glass from vibrating even when driving with the area of ​​the door glass exposed to the window increased. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the belt molding for a vehicle door of the present invention comprises a skeleton body attached to the upper end of a door panel of a vehicle door, and a hollow lip provided on the skeleton body and in contact with the door glass, the hollow lip having a glass-side hollow lip portion extending from the skeleton body toward the door glass and having a glass-sliding surface in contact with the door glass, and a skeleton-side hollow lip portion extending from a position on the skeleton body above the glass-side hollow lip portion while facing the glass-side hollow lip portion, and the skeleton-side hollow lip portion is provided with a notch portion that makes it easier to bend. Furthermore, in the belt molding for a vehicle door according to the present invention, the skeleton-side hollow lip portion has a skeleton-side hollow lip base portion extending obliquely upward from the skeleton body toward the door glass, and a first notch portion is provided as the notch portion in the skeleton-side hollow lip base portion. Furthermore, in the belt molding for a vehicle door according to the present invention, the skeleton-side hollow lip portion further has a skeleton-side hollow lip upper extension portion that bends toward the skeleton body at the upper end of the skeleton-side hollow lip base portion and extends diagonally upward, and a second notch portion is provided as the notch portion in the skeleton-side hollow lip upper extension portion. Furthermore, in the belt molding of the vehicle door according to the present invention, an upper hollow lip portion is provided between the upper end of the glass-side hollow lip portion and the upper end of the skeleton-side hollow lip portion so as to form a hollow portion, and the upper hollow lip portion is provided with an upper hollow lip skeleton-body abutment surface that abuts against the skeleton when the hollow lip is pushed by the door glass and falls toward the skeleton. Furthermore, the vehicle door belt molding of the present invention is also characterized in that the frame-side hollow lip portion is provided with a frame-side hollow lip curved surface that abuts against the surface of the glass-side hollow lip portion opposite the glass-contacting surface when the hollow lip is pushed by the door glass and falls toward the frame. [Effects of the Invention]

[0010] In the belt molding of the vehicle door of the present invention, when the hollow lip comes into contact with the door glass and is pressed toward the skeleton body, the hollow lip portion on the skeleton body side is easily bent with the notch portion (groove portion) as a bending point, so the lip reaction force, which is the pressing force of the hollow lip against the door glass, can be kept low. Therefore, even when a hollow lip that exerts a relatively high pressing force on the door glass is used as a belt molding for a vehicle door, the notch portion can keep the pressing force of the hollow lip low, thereby reliably preventing the generation of abnormal sliding noise when the door glass is raised and lowered. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side view of a front door of a vehicle on which an outer belt molding according to an embodiment of the present invention is installed. [Figure 2] 2 is a cross-sectional view taken along line AA in FIG. 1 in which the outer belt molding of the embodiment according to the present invention is attached to a door panel and in an unloaded state where it is not in contact with the door glass. [Figure 3] 2 is a cross-sectional view taken along line AA in FIG. 1, illustrating a state in which the outer belt molding of the embodiment according to the present invention is pressed by a door glass and compressed by approximately 1.0 mm. FIG. [Figure 4] 2 is a cross-sectional view taken along line AA in FIG. 1, illustrating a state in which the outer belt molding of the embodiment according to the present invention is pressed by a door glass and compressed by approximately 3.0 mm. FIG. [Figure 5] 2 is a cross-sectional view taken along line AA in FIG. 1, illustrating a state in which the outer belt molding of the embodiment according to the present invention is pressed by the door glass and compressed by approximately 5.0 mm. FIG. [Figure 6] 1A and 1B are cross-sectional views taken along line AA in FIG. 1 showing a state in which a belt molding in which the first notch portion and the second notch portion are omitted is pressed against the door glass and compressed by approximately 5.0 mm as a comparative example of the belt molding of the vehicle door of the embodiment, and FIG. 1A is a cross-sectional view taken along line AA in FIG. 1 showing a state in which an outer belt molding of the embodiment according to the present invention is pressed against the door glass and compressed by approximately 5.0 mm. [Figure 7] 2 is a cross-sectional view taken along line AA in FIG. 1, illustrating a state in which the outer belt molding of the embodiment according to the present invention is pressed by a door glass and compressed by approximately 6.0 mm. FIG. [Figure 8] FIG. 10 is a diagram showing a comparison of a compression load curve α of a hollow lip of an outer belt molding of an embodiment according to the present invention, a compression load curve β of a hollow lip of Comparative Example 1 in which a first notch portion, a second notch portion, etc. are omitted, and a compression load curve γ of Comparative Example 2 in which a seal lip is not a hollow lip. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an outer belt molding 1, which is one embodiment of a belt molding for a vehicle door according to the present invention, will be described with reference to the drawings.

[0013] FIG. 1 is a side view of a front door 2 of a vehicle to which an outer belt molding 1 of this embodiment is attached.

[0014] The outer belt molding 1 of this embodiment is a long member made of resin such as rubber that is attached to the outside of the upper end of a door panel 21 of a vehicle front door 2 having a door glass 24 that rises and falls from the door panel 21 to open and close a window portion 23 between the door panel 21 and a door sash (window frame) 22, as shown in Fig. 1, and is configured by fixing a hollow lip 12, a buffer lip 13, an anti-rotation lip 14, a decorative lip 15, etc. to a skeleton 11 having a cross-sectional shape as shown in Fig. 2. The method for manufacturing the outer belt molding 1, in which the hollow lip 12, buffer lip 13, anti-rotation lip 14, decorative lip 15, etc. are fixed to the skeleton 11, is well known, and therefore description thereof will be omitted.

[0015] (Skeletal body 11) The skeleton 11 is a strength member for ensuring the rigidity of the entire outer belt molding 1, and is formed long and with an inverted U-shaped cross section as a whole from a resin such as a hard resin such as polypropylene or chlorinated PVC, and is configured to fix the outer belt molding 1 to the door panel 21 by sandwiching the door outer panel 21a and the door inner panel 21b of the door panel 21 between the outer skeleton body 11a and the inner skeleton body 11b, respectively, as shown in Fig. 2. Both longitudinal ends of the skeleton 11 are processed and then end caps or the like are attached, although not shown. Each lip portion fixed to the framework 11 is formed from a resin such as a soft resin such as TPO or chlorinated polyvinyl chloride.

[0016] The outer frame body 11a is a frame body integrally formed with a designed upper surface and a designed side surface exposed to the outside of the door panel 21. As shown in FIG. 2, a buffer lip 13, the leading end of which abuts against the door outer panel 21a of the door panel 21, is provided at its lower end, while an anti-rotation lip 14, the leading end of which abuts against the door outer panel 21a of the door panel 21, is provided on the inside of the outer frame body 11a. In addition, a skin portion 11a1 made of a weather-resistant material that has been weather-resistant is provided on the outside of the outer frame body 11a. The door panel 21 is formed by welding three steel panel members, namely, the door outer panel 21a, the door inner panel 21b, and the center panel 21c.

[0017] As shown in Figure 2, the inner skeletal body 11b is composed of an upper inner skeletal body 11b1 that is continuous with the outer skeletal body 11a, an inner skeletal body protrusion 11b2 that protrudes from the lower part of the upper inner skeletal body 11b1 toward the door glass 24 in response to the bulge of the door inner panel 21b toward the door glass 24, and a lower inner skeletal body 11b3 that protrudes toward the door glass 24 more than the upper inner skeletal body 11b1 via the inner skeletal body protrusion 11b2 and then extends downward.

[0018] The upper skeletal inner body 11b1 has a decorative lip 15 fixed to its upper end, while at the boundary with its lower end, which is the skeletal inner protrusion 11b2, a door panel abutment portion 11b11 is provided that protrudes so as to abut against the door inner panel 21b of the door panel 21.

[0019] A hollow lip 12 is fixed to the lower inner skeletal body 11b3 at a predetermined distance in the vertical direction from the decorative lip 15, and a door panel hooking portion 11b31 is provided at the lower end of the lower inner skeletal body 11b3, which is located below the hollow lip 12, and hooks onto the lower end of the door inner panel 21b to prevent the outer belt molding 1 from slipping out.

[0020] (Hollow Lip 12) The hollow lip 12 is fixed to the door glass 24 side of the lower inner skeleton body 11b3 of the inner skeleton body 11b, and is a lip that contacts and seals with the door glass 24 as it moves up and down. It extends while curving upward from approximately the center in the vertical direction of the lower inner skeleton body 11b3, and is located near the boundary between the glass-side hollow lip portion 12a having the glass-contact surface 12a1 that contacts the door glass 24 and the inner skeleton body protrusion portion 11b2 that is the upper part of the lower inner skeleton body 11b3. It has a skeleton-side hollow lip portion 12b that curves and extends upward while facing the glass-side hollow lip portion 12a from the side, and an upper hollow lip portion 12c that is provided between the upper end of the glass-side hollow lip portion 12a and the upper end of the skeleton-side hollow lip portion 12b, and a hollow portion 12d is formed by the glass-side hollow lip portion 12a, the skeleton-side hollow lip portion 12b, the upper hollow lip portion 12c, and the inner skeleton body 11b of the skeleton 11.

[0021] (Glass-side hollow lip portion 12a) The glass-side hollow lip portion 12a is a lip portion having a glass-sliding surface 12a1 that comes into contact with the rising and falling door glass 24, and is curved so as to be convex toward the door glass 24. Two convex portions 12a2 for supporting the position of an application jig (not shown) are provided at the bottom, and serve as markers when installing a flocking adhesive application jig or the like. The fixed portion between the glass-side hollow lip portion 12a and the inner skeletal body 11b is designated as 12a3.

[0022] (Hollow lip portion 12b on the skeleton side) The skeleton-side hollow lip portion 12b extends upward from a position above the lower inner skeleton body 11b3 of the inner skeleton body 11b while facing the glass-side hollow lip portion 12a and continues to the upper hollow lip portion 12c, forming a hollow portion 12d between the glass-side hollow lip portion 12a and the upper hollow lip portion 12c, and has a skeleton-side hollow lip base portion 12b1 and a skeleton-side hollow lip upper extension portion 12b2. In this embodiment, as shown in Figure 2, the skeleton-side hollow lip upper extension portion 12b2 is formed longer than the skeleton-side hollow lip base portion 12b1.

[0023] As shown in Figure 2, the skeleton-side hollow lip base 12b1 is a portion that extends at an angle from the fixing portion 12b3 of the skeleton inner body 11b of the skeleton 11 toward the door glass 24, and a first notch portion 12b11 is provided on the outer surface of the skeleton-side hollow lip base 12b1 near the fixing portion 12b3, i.e., on the side opposite the hollow portion 12d.

[0024] The first notch portion 12b11 is a portion formed by thinning and weakening the thickness (wall thickness) of the hollow lip base portion 12b1 on the frame body side so that it can be easily bent when the hollow lip portion 12a comes into contact with the door glass 24 and is pressed toward the frame body 11. Note that, since Fig. 2 is a cross-sectional view taken along line AA in Fig. 1, the first notch portion 12b11 is provided so as to extend in the longitudinal direction of the outer belt molding 1.

[0025] The upper extension portion 12b2 of the skeleton side hollow lip is a portion that bends from the upper end portion of the skeleton side hollow lip base portion 12b1 toward the skeletal inner body 11b of the skeleton body 11 and extends at an angle toward the skeletal inner body 11b of the skeleton body 11, and has a second notch portion 12b21 on the outer surface near the upper boundary portion 12f of the skeleton side hollow lip described later, which is the boundary portion with the upper hollow lip 12c.

[0026] Similar to the first notch portion 12b11, the second notch portion 12b21 is formed by thinning and weakening the thickness (wall thickness) of the hollow lip upper extension portion 12b2 on the frame body side so that it can be easily bent when the hollow lip portion 12a comes into contact with the door glass 24 and is pressed toward the frame body 11. This second notch portion 12b21 is also provided so as to extend in the longitudinal direction of the outer belt molding 1.

[0027] 2, the frame-side hollow lip base 12b1 and the frame-side hollow lip upper extension 12b2 extend in different directions (angles), so the boundary between the frame-side hollow lip base 12b1 and the frame-side hollow lip upper extension 12b2 is convex toward the hollow portion 12d and curved with a curvature greater than that of the glass-side hollow lip 12a. This curved surface will be referred to as the frame-side hollow lip curved surface 12e.

[0028] (Upper hollow lip portion 12c) The upper hollow lip portion 12c is a lip portion between the upper end of the glass-side hollow lip portion 12a and the upper end of the skeleton-side hollow lip portion 12b, and is curved or bent so as to be concave toward the hollow portion 12d, and is provided with an upper hollow lip skeleton-body abutment surface 12c1 that abuts against the skeleton inner body 11b of the skeleton body 11 when or just before the door glass 24 is completely closed.

[0029] In addition, the boundary portion between the skeleton side hollow lip portion 12b and the upper hollow lip portion 12c, i.e., the boundary portion between the skeleton side hollow lip upper extension portion 12b2 and the upper hollow lip skeleton contact surface 12c1, which is bent so as to be convex toward the skeleton inner body 11b, will be referred to as the skeleton side hollow lip upper boundary portion 12f.

[0030] (Buffer lip 13) The buffer lip 13 is fixed to the lower end of the frame body 11 on the vehicle exterior side and elastically deforms when it comes into contact with the door panel 21. The buffer lip 13 has the main functions of improving the fit of the outer belt molding 1 after it has been attached to the door panel 21 and preventing the outer belt molding 1 from slipping off.

[0031] (Anti-rotation lip 14) The anti-rotation lip 14 is a lip that is fixedly formed on the lower end of the inner surface of the outer skeleton body 11a of the skeleton body 11, and its main functions are to prevent the outer belt molding 1 from coming loose after being attached to the door panel 21 and to suppress the amount of swing in the rotational direction.

[0032] (Design Lip 15) The decorative lip 15 is a lip fixedly formed at the boundary between the outer skeleton body 11a and the inner skeleton body 11b of the skeleton body 11, and has a main design function, such as hiding the groove between the skeleton body 11 and the hollow lip 12, and a function to prevent foreign matter such as dust and water from entering the door panel 21. The decorative lip 15 has a notch 15a for the decorative lip on the door glass 24 side.

[0033] <Movement and effect of the hollow lip 12 of the vehicle door belt molding 1 according to the embodiment> Next, the movement or deformation of the hollow lip 12 when the door glass 24 is raised or lowered in the outer belt molding 1 of the vehicle door of the embodiment configured as above, and the effects thereof will be described.

[0034] (When the hollow lip 12 is pushed by the door glass 24 and moved outward (toward the outside of the vehicle) by 1.0 mm, it is deformed.)

[0035] 3 is a cross-sectional view showing a state in which the hollow lip 12 is pressed by the door glass 24, causing the glass sliding surface 12a1 to move outward (toward the vehicle exterior) by 1.0 mm, compressing the hollow lip 12. In FIG. 3, the shape of the hollow lip 12 indicated by the dashed line shows the shape in an unloaded state in which it is not pressed by the door glass 24, and is the same as the state shown in FIG. 2.

[0036] In this case, in the outer belt molding 1 of the vehicle door of the embodiment, the hollow lip 12 is pressed outward (toward the outside of the vehicle) by the door glass 24, so that the glass-side hollow lip portion 12a bends as a whole, while the skeleton-side hollow lip portion 12b has a first notch portion 12b11 provided in the skeleton-side hollow lip base 12b1, so that the skeleton-side hollow lip base 12b1 does not bend as a whole, but rather the first notch portion 12b11 becomes a tipping point (bending point) and the skeleton-side hollow lip base 12b1 bends significantly and moves toward the door skeleton 11.

[0037] Therefore, the lip reaction force, which is the pressing force of the hollow lip 12 pressing against the door glass 24, can be reduced compared to when the first notch portion 12b11 is not provided in the skeleton-side hollow lip base portion 12b1 of the skeleton-side hollow lip portion 12b.

[0038] In addition, in the outer belt molding 1 of the vehicle door of this embodiment, when the amount of outward displacement of the hollow lip 12 is between 0 and 3.0 mm as shown in Figure 4, which will be described next, the skeleton-side hollow lip portion 12b bends significantly at the first notch portion 12b11 as shown in Figure 3, and the skeleton-side inner body 11b does not abut against the skeleton body 11 as shown in Figure 3, so the lip reaction force, which is the pressing force with which the hollow lip 12 presses against the door glass 24, does not increase significantly.

[0039] As a result, in the outer belt molding 1 of the vehicle door of the embodiment, when the outward displacement of the hollow lip 12 is between 0 and 3.0 mm, it is possible to prevent a sudden change in the lip reaction force in response to a change in the compression amount (deflection amount) of the hollow lip 12 when the door glass 24 is raised and lowered, compared to when the first notch portion 12b11 is not provided in the hollow lip base portion 12b1 on the skeleton body side, thereby suppressing the occurrence of abnormal sliding noise due to stick-slip phenomena, etc.

[0040] (When the hollow lip 12 is pushed by the door glass 24 and moved 3.0 mm outward (towards the outside of the vehicle) and deformed)

[0041] Fig. 4 is a cross-sectional view showing a state in which the hollow lip 12 is further pushed outward (toward the vehicle exterior) as the door glass 24 rises further from the state shown in Fig. 3, causing the glass sliding surface 12a1 to move outward by approximately 3.0 mm, compressing the hollow lip 12. Note that in Fig. 4, the shape of the hollow lip 12 indicated by the dashed dotted line shows the shape in an unloaded state in which it is not pressed by the door glass 24, as in Fig. 3.

[0042] If the door glass 24 rises further and the glass sliding surface 12a1 moves outward (toward the outside of the vehicle) by approximately 3.0 mm, compressing the hollow lip 12, in the hollow lip 12 of the outer belt molding 1 of this embodiment, as described above, the first notch portion 12b11 provided on the outer surface of the skeleton-side hollow lip base 12b1 of the skeleton-side hollow lip portion 12b becomes a bending point (bending point), causing the skeleton-side hollow lip base 12b1 of the skeleton-side hollow lip portion 12b to bend significantly, and the skeleton-side hollow lip upper boundary portion 12f, which is the boundary portion between the skeleton-side hollow lip upper extension portion 12b2 and the upper hollow lip portion 12c2, comes into contact with the upper skeleton inner body 11b1 of the skeleton 11, as shown in Figure 4.

[0043] 3, the upper boundary 12f of the hollow lip on the skeleton body side comes into contact with the upper inner skeletal body 11b1 of the skeleton body 11. Therefore, a reaction force is also generated on the hollow lip 12 from the contact point between the upper boundary 12f of the hollow lip on the skeleton body side and the upper inner skeletal body 11b1, and the lip reaction force, which is the pressing force with which the hollow lip 12 presses the door glass 24, is greater than when the outward displacement of the hollow lip 12 is 0.0 mm or more and less than 3.0 mm.

[0044] However, the first notch portion 12b11 acts as a tipping point (bending point), or fulcrum, causing the skeleton-side hollow lip portion 12b to bend significantly, and a downward force acts on the skeleton-side hollow lip upper boundary portion 12f along the upper skeleton inner body 11b1 of the skeleton 11. Therefore, the reaction force received by the hollow lip 12 from the door glass 24 is not only transmitted to the skeleton inner body 11b1 via the upper hollow lip portion 12c and the skeleton-side hollow lip upper boundary portion 12f, but is also transmitted to the skeleton-side hollow lip upper extension portion 12b2 of the skeleton-side hollow lip portion 12b, which is continuous with the upper hollow lip portion 12c2, via the skeleton-side hollow lip upper boundary portion 12f, causing the skeleton-side hollow lip upper extension portion 12b2 to bend with the second notch portion 12b21 as a tipping point.

[0045] Therefore, when the upper boundary portion 12f of the hollow lip on the skeleton side abuts against the upper skeletal inner body 11b1, the lip reaction force of the hollow lip 12 increases compared to when the upper boundary portion 12f of the hollow lip on the skeleton side does not abut against the upper skeletal inner body 11b1; however, the second notch portion 12b21 becomes a tipping point (bending point) and the upper extension portion 12b2 of the hollow lip on the skeleton side bends, so the lip reaction force can be kept smaller than when the second notch portion 12b21 is not provided.

[0046] As a result, according to the outer belt molding 1 of the vehicle door of the embodiment, even when the upper boundary portion 12f of the skeleton-side hollow lip abuts against the upper inner skeleton body 11b1, the second notch portion 12b21 becomes a tipping point (bending point) and the upper extension portion 12b2 of the skeleton-side hollow lip bends, thereby making it possible to prevent a sudden change in the lip reaction force in response to a change in the compression amount (deflection amount) of the hollow lip 12.In this respect, too, stick-slip phenomena and the like are less likely to occur between the glass sliding surface 12a1 and the door glass 24, thereby suppressing the generation of abnormal sliding noises.

[0047] (When the hollow lip 12 is pushed further outward (toward the outside of the vehicle) by the door glass 24, it is moved outward by 5.0 mm and deformed.)

[0048] Fig. 5 is a cross-sectional view showing a state in which the door glass 24 is further raised from the state shown in Fig. 3, the glass sliding surface 12a1 is moved outward by 5.0 mm from the unloaded state, and the hollow lip 12 is compressed. In Fig. 5, the shape of the hollow lip 12 shown by the dashed line indicates the shape in the unloaded state in which it is not pressed by the door glass 24, as in Figs. 3 and 4.

[0049] 4 and the glass sliding surface 12a1 moves outward (toward the vehicle exterior) by 5.0 mm, in the hollow lip 12 of the outer belt molding 1 of the vehicle door of the embodiment, the first notch 12b11 provided on the outer surface of the frame-body-side hollow lip base 12b1 of the frame-body-side hollow lip portion 12b becomes a tipping point (bending point), causing the frame-body-side hollow lip base 12b1 of the frame-body-side hollow lip portion 12b to bend even more significantly, as in the cases of FIGS. 3 and 4. Note that the state shown in FIG. 5 is a state in which, although the door glass 24 has risen significantly, there is a gap between the upper end of the door glass 24 and the door sash (window frame) 22, preventing the window portion 23 from being completely closed, although this state may vary depending on factors such as variations in the installation of the outer belt molding 1 to the door panel 21. This is the state in which the upper end of the door glass 24 is about to hit the door sash 22 and stop.

[0050] As a result, the skeleton-side hollow lip base 12b1 and the skeleton-side hollow lip upper extension 12b2 bend significantly, so that, as shown in Figure 5, not only the skeleton-side hollow lip upper boundary 12f but also the upper hollow lip skeleton contact surface 12c1 contacts the upper skeleton inner body 11b1 of the skeleton 11, and the skeleton-side hollow lip curved surface 12e between the skeleton-side hollow lip base 12b1 and the skeleton-side hollow lip upper extension 12b2 contacts the opposite (back) surface of the glass-contacting surface 12a1, which is the inner surface of the glass-side hollow lip portion 12a, i.e., the surface on the hollow portion 12d side.

[0051] Therefore, unlike the case where the compression amount of the hollow lip 12 is up to 3.0 mm as shown in Figures 3 and 4, the upper hollow lip skeleton body abutment surface 12c1 abuts against the upper skeleton inner body 11b1 of the skeleton body 11, increasing the reaction force received from the door glass 24 at the upper skeleton inner body 11b1 of the skeleton body 11, and the skeleton side hollow lip curved surface 12e also receives the reaction force from the door glass 24.

[0052] As a result, in the hollow lip 12 of the outer belt molding 1 of the vehicle door of the embodiment, the reaction force from the door glass 24 is received at three points: the fixing portion 12a3 between the glass-side hollow lip portion 12a and the lower inner skeletal body 11b3, the upper inner skeletal body 11b1 of the skeleton body 11 with which the skeleton-side hollow lip upper boundary portion 12f and the upper hollow lip skeleton-body abutment surface 12c1 abut, and the skeleton-side hollow lip curved surface 12e abutting against the glass-side hollow lip portion 12a. As shown in Figure 4, the lip reaction force of the hollow lip 12 increases sharply compared to when the reaction force from the door glass 24 is received at two points: the fixing portion 12a3 between the glass-side hollow lip portion 12a and the lower inner skeletal body 11b3 and the upper inner skeletal body 11b1 of the skeleton body 11 with which the skeleton-side hollow lip upper boundary portion 12f abuts. Therefore, it is possible to strongly press the door glass 24 and reliably prevent the door glass 24 from shaking.

[0053] 5, the amount of compression of the hollow lip 12 is greater than in the case shown in Fig. 3, and therefore the skeleton-side hollow lip 12b bends further at the first notch 12b11 and the second notch 12b21 as bending points, causing the skeleton-side hollow lip upper boundary 12f, which is the boundary between the skeleton-side hollow lip 12b and the upper hollow lip 12c, and the upper hollow lip skeleton-body abutment surface 12c1 to move downward, i.e., slip down, while abutting against the upper inner skeletal body 11b1 of the skeleton 11. The downward slip of the skeleton-side hollow lip upper boundary 12f and the upper hollow lip skeleton-body abutment surface 12c1 will be explained below with reference to Figs. 6(a) and (b) in comparison with Comparative Example 1.

[0054] (Comparison with the outer belt molding 1' of Comparative Example 1 in which the first notch portion 12b11 and the second notch portion 12b21 are omitted) Figure 6(a) is a cross-sectional view showing a state in which the glass-contacting surface 12a1' of the glass-side hollow lip portion 12a' has been moved 5.0 mm outward and compressed by the door glass 24 in the outer belt molding 1' of Comparative Example 1, which is a comparison example 1 of the belt molding 1 of the vehicle door of the embodiment, in which the first notch portion 12b11 and the second notch portion 12b21 have been omitted and the rest of the shape is the same as the cross-sectional shape of the outer belt molding 1 of the vehicle door of the embodiment. Figure 6(b) is the same cross-sectional view as Figure 5, showing a state in which the glass-contacting surface 12a1 of the outer belt molding 1 of the vehicle door of the embodiment has been moved 5.0 mm outward and compressed.

[0055] As shown in Figure 6(a), in the case of the belt molding 1' of Comparative Example 1, the hollow lip 12' does not have the first notch portion 12b11 and the second notch portion 12b21. Therefore, when the hollow lip 12' is pushed outward (towards the outside of the vehicle) by the door glass 24 and moves, increasing its amount of compression (amount of deflection), the entire hollow lip portion 12b' on the frame side bends almost evenly as shown in Figure 6, and no special points like the first notch portion 12b11 and the second notch portion 12b21 are generated in the hollow lip 12' in response to the pressure from the door glass 24 side.

[0056] Therefore, in the outer belt molding 1' of Comparative Example 1, as shown in Figure 6(a), the upper boundary portion 12f' of the hollow lip on the skeleton side, which is the boundary portion between the hollow lip portion 12b on the skeleton side and the upper hollow lip portion 12c, does not slip down along the upper inner skeletal body 11b1' of the skeleton body 11', but abuts firmly against the side surface of the upper inner skeletal body 11b1'.

[0057] As a result, in the outer belt molding 1' of Comparative Example 1 shown in Figure 6(a), the lip deflection load, which is the lip reaction force with which the hollow lip 12' presses the door glass 24, increases more rapidly than in the hollow lip 12 of this embodiment, which is provided with the first notch portion 12b11 and the second notch portion 12b21, making it more likely that abnormal noise will occur when the door glass 24 is raised or lowered.

[0058] In contrast, in the outer belt molding 1 of the vehicle door of the embodiment, as described in Fig. 5, the frame-body-side hollow lip portion 12b bends at the first notch portion 12b11 and the second notch portion 12b21 as bending points, so that the frame-body-side hollow lip upper boundary portion 12f, which is the boundary portion between the frame-body-side hollow lip portion 12b and the upper hollow lip portion 12c, slides downward while abutting against the upper inner-skeleton body 11b1 of the frame body 11. Therefore, in the outer belt molding 1 of the vehicle door of the embodiment, the frame-body-side hollow lip upper boundary portion 12f is shifted downward by α compared to the outer belt molding 1' of Comparative Example 1, in which the first notch portion 12b11 and the second notch portion 12b21 are omitted, as shown in Figs.

[0059] Therefore, in the outer belt molding 1 of the vehicle door of the embodiment, the reaction force received by the upper hollow lip portion 12c of the hollow lip 12 from the door glass 24 is suppressed not only by bending at the first notch portion 12b11 and the second notch portion 12b21, but also by the skeleton-side hollow lip upper boundary portion 12f shifting downward along the upper skeleton inner body 11b1 of the skeleton body 11, compared to the belt molding 1' of Comparative Example 1 in which the first notch portion 12b11 and the second notch portion 12b21 are omitted.

[0060] (When the hollow lip 12 is pushed further outward (toward the outside of the vehicle) by the door glass 24, it is moved outward by 6.0 mm and deformed.)

[0061] Fig. 7 is a cross-sectional view showing a state in which the hollow lip 12 is pressed further outward (toward the vehicle exterior) by the door glass 24, causing the glass-contacting surface 12a1 to move outward by 6.0 mm, compressing the hollow lip 12. Note that in Fig. 7, the shape of the hollow lip 12 indicated by the dashed dotted line shows the shape in an unloaded state in which it is not pressed by the door glass 24, as in Fig. 5 etc. Note that the vicinity of the frame-side hollow lip curved surface 12e abuts against the inner surface of the glass-side hollow lip portion 12a on the side opposite to the glass-contacting surface 12a1, as in the comparative example shown in Fig. 6.

[0062] 7, in which the glass sliding surface 12a1 has moved 6.0 mm outward (toward the vehicle exterior), it is assumed that the upper end of the door glass 24 has come into contact with the door sash 22, stopping its upward movement and completely closing the window 23. In this state, as in FIGS. 5 and 6(b), the hollow lip 12 bends more significantly due to the first notch 12b11 provided on the outer surface of the frame-side hollow lip base 12b1 of the frame-side hollow lip portion 12b, causing the frame-side hollow lip base 12b1 of the frame-side hollow lip portion 12b to bend more significantly, resulting in a greater compression of the hollow lip 12 than in the case shown in FIG.

[0063] Therefore, not only the frame-side hollow lip upper boundary 12f, which is the boundary between the frame-side hollow lip portion 12b and the upper hollow lip portion 12c, but also the upper hollow lip frame-body abutment surface 12c1 of the upper hollow lip portion 12c abuts against the upper frame inner body 11b1 of the frame body 11, and the abutment area increases, and the abutment area of ​​the frame-side hollow lip curved surface 12e with the glass-side hollow lip portion 12a also increases to receive the reaction force from the door glass 24, so that the lip reaction force with which the hollow lip 12 presses against the door glass 24 increases rapidly, making it possible to reliably press the door glass 24 and reliably prevent vibration of the door glass 24. In the state shown in Figure 7, the area of ​​the glass-contact surface 12a1 abutting against the door glass 24 is also maximized.

[0064] In addition, although in Figure 7 the decorative lip 15 is raised upward by the compressed upper hollow lip portion 12c, the state shown in Figure 7 assumes that the door glass 24 is fully raised and stopped, and the window portion 23 is fully closed, so there is no significant problem even if foreign matter such as dust or rainwater accumulates between the raised decorative lip 15 and the upper hollow lip portion 12c.

[0065] <Compression load curves of outer belt molding 1 of vehicle door according to the present embodiment and comparative examples 1 and 2> Next, a comparison will be made between the compression load curve α of the hollow lip of the outer belt molding 1 of the embodiment according to the present invention shown in FIG. 8, the compression load curve β of the hollow lip of Comparative Example 1 in which the first notch portion and the second notch portion, etc. are omitted, and the compression load curve γ of the seal lip of Comparative Example 2 which is not a hollow lip like the decorative lip 15.

[0066] In Figure 8, the horizontal axis shows the amount of compression (deflection) (mm) of the hollow lips of the embodiment and comparative example 1 and the seal lip of comparative example 2 due to the lifting of the door glass 24, and the vertical axis shows the load (N / 100mm) applied to these three lips by the door glass 24.

[0067] The compression load curve β shown in FIG. 8 is a lip compression load curve diagram of the hollow lip of Comparative Example 1 in which the first notch portion 12b11 and the second notch portion 12b21 are omitted.

[0068] In the case of the hollow lip 12' of Comparative Example 1, which does not have the first notch portion 12b11 and the second notch portion 12b21, as explained in Figure 6(a) , when the hollow lip 12' abuts against the door glass 24, the reaction force from the door glass 24 is received by the entire hollow lip 12' as it bends.As a result, as shown by the compression load curve β, the load received by the hollow lip 12' increases almost in proportion to the compression amount up to about 5.0 mm, and increases more rapidly over the entire compression amount (deflection amount) range from 0 to 6.0 mm than the compression load curve α of the hollow lip of the outer belt molding 1 of this embodiment or the compression load curve γ of a sealing lip that is not a hollow lip, such as the decorative lip 15.

[0069] Therefore, in the case of the hollow lip 12' of Comparative Example 1, which does not have the first notch portion 12b11 and the second notch portion 12b21, abnormal sliding noise is likely to occur due to the stick-slip phenomenon or the like in the entire range of compression (deflection) from 0 to 6.0 mm.

[0070] Furthermore, in the case of the seal lip of Comparative Example 2, since it has a cross-sectional shape that is not a hollow lip like the decorative lip 15, as shown by its compression load curve γ, the deflection load value of the seal lip does not increase significantly even when the compression amount (deflection amount) of the lip increases, and is smaller than the compression load curve α of the hollow lip 12 of this embodiment and the compression load curve β of the hollow lip of Comparative Example 1, which omits the first notch portion and second notch portion, etc., over the entire range of compression amount (deflection amount) from 0 to 6.0 mm.

[0071] Therefore, in the case of the seal lip of Comparative Example 2, stick-slip is unlikely to occur between the seal lip and the door glass 24, and sliding noises are unlikely to occur. However, even when the compression amount (deflection amount) of the seal lip exceeds 5.0 mm, the increase in the deflection load value of the lip is small. Therefore, when driving with the door glass 24 fully closed or when driving with a ventilation gap between the upper end of the door glass 24 and the door sash 22, etc., and thereby increasing the area of ​​the door glass 24 exposed to the window portion 23, the door glass 24 tends to shake due to wind resistance, etc., received by the door glass 24.

[0072] In contrast to this, in the hollow lip 12 of the outer belt molding 1 of this embodiment, as described above, the frame-side hollow lip portion 12b of the hollow lip 12 is provided with the first notch portion 12b11 and the second notch portion 12b21 which become the bending points (bending portions). Therefore, when the amount of compression until the frame-side hollow lip curved surface 12e abuts against the glass-side hollow lip portion 12a is around 0 to 5.0 mm, as shown in the compression load curve α of the hollow lip, the load rises at a gentler angle than the compression load curve β of a hollow lip that does not include the first notch portion and the second notch portion, and the load received by the hollow lip 12 does not change suddenly.

[0073] Therefore, in the hollow lip 12 of the outer belt molding 1 of this embodiment, when the compression amount of the hollow lip 12 is within the range of approximately 0 to 5.0 mm due to variations in attachment to the door panel 21 or changes in the distance between the glass surfaces when the door glass 24 is raised or lowered, the lip reaction force does not increase suddenly, just like in the case of a seal lip that is not a hollow lip, such as the decorative lip 15 shown by the compression load curve γ, and the stick-slip phenomenon is less likely to occur, thereby suppressing the generation of abnormal sliding noise when the door glass 24 is raised or lowered.

[0074] Furthermore, when the compression amount (deflection amount) of the hollow lip 12 exceeds 5.0 mm and the window portion 23 of the front door 2 approaches or is fully closed, the hollow lip 12 compresses, causing the upper boundary portion 12f of the hollow lip on the skeleton body side and the skeleton body abutment surface 12c1 of the upper hollow lip to abut against the upper skeleton inner body 11b1, and the curved surface 12e of the hollow lip on the skeleton body side to abut against the glass side hollow lip portion 12a, resulting in three-point support including the fixed portion 12a3 between the base of the glass side hollow lip portion 12a and the lower skeleton inner body 11b3.

[0075] Therefore, in the hollow lip 12 of the outer belt molding 1 of this embodiment, when the lip compression amount (deflection amount) exceeds 5.0 mm, the lip reaction force, which is the deflection load value of the hollow lip 12, increases rapidly, so that the hollow lip 12 presses firmly against the door glass 24, thereby reliably preventing the door glass 24 from vibrating.

[0076] <Summary of the outer belt molding 1 of this embodiment> As described above, the hollow lip 12 of the outer belt molding 1 in an embodiment according to the present invention comprises: a glass-side hollow lip portion 12a that extends upward from the inner skeletal body 11b and has a glass-sliding surface 12a1 that comes into contact with the door glass 24; and a skeleton-side hollow lip portion 12b that extends upward from the inner skeletal body 11b with a gap between it and the glass-side hollow lip portion 12a and forms a hollow portion 12d between itself and the glass-side hollow lip portion 12a, the upper hollow lip 12c, etc.; the skeleton-side hollow lip portion 12b is weakened by reducing its thickness, and is provided with a first notch portion 12b11 and a second notch portion 12b21 as notches that become collapse points (bending points) when pressed against the door glass 24.

[0077] Therefore, when the hollow lip 12 comes into contact with the door glass 24 and is pressed toward the skeleton 11, the first notch portion 12b11 and the second notch portion 12b21 of the skeleton-side hollow lip portion 12b become the tipping points (bending points) and bend, so the compression amount of the hollow lip 12 is small, for example, less than 5.0 mm, and the skeleton-side hollow lip curved surface 12e abuts against the glass-side hollow lip portion 12a, and the skeleton-side hollow lip upper boundary portion 12f and the upper hollow lip skeleton abutment surface 12c1 abut against the upper skeleton inner body 11b1. This reduces the lip reaction force of the hollow lip 12 against the door glass 24, thereby preventing the generation of abnormal sliding noises when the door glass 24 is raised.

[0078] In particular, in the outer belt molding 1 of the embodiment according to the present invention, the skeleton-side hollow lip portion 12b has a skeleton-side hollow lip base 12b1 that extends obliquely from the fixing portion 12b3 of the skeleton inner body 11b of the skeleton 11 toward the door glass 24, and a first notch portion 12b11 is provided in the skeleton-side hollow lip base 12b1.

[0079] Therefore, when the hollow lip 12 comes into contact with the door glass 24 and is pressed toward the skeleton 11, the first notch portion 12b11 becomes the tipping point (bending point) and the skeleton-side hollow lip base portion 12b1 bends significantly before bending at the second notch portion 12b21, thereby reliably reducing the lip reaction force of the hollow lip 12 against the door glass 24 and reliably preventing the occurrence of abnormal sliding noises when the door glass 24 is raised.

[0080] Furthermore, in the outer belt molding 1 of the embodiment according to the present invention, the skeleton-side hollow lip portion 12b has a skeleton-side hollow lip upper extension portion 12b2 that bends toward the skeleton inner body 11b at the upper end of the skeleton-side hollow lip base portion 12b and extends diagonally upward, and a second notch portion 12b21 is provided in the skeleton-side hollow lip upper extension portion 12b2.

[0081] Therefore, when the hollow lip 12 is pressed against the door glass 24 and compressed, and the upper boundary 12f of the hollow lip on the frame body side, which is the boundary between the upper extension 12b2 of the hollow lip on the frame body side and the hollow lip portion 12b on the frame body side, abuts against the upper inner frame body 11b1 of the frame body 11, and a downward stress is applied to the hollow lip portion 12b2 on the frame body side, the second notch 12b21 provided on the upper extension 12b2 of the hollow lip on the frame body side below the upper boundary 12f of the hollow lip on the frame body side falls to the bending point (bending point). ) so that the upper extension 12b2 of the hollow lip on the skeleton side bends and the upper boundary 12f of the hollow lip on the skeleton side shifts down along the upper inner skeletal body 11b1 of the skeleton 11, thereby making it possible to keep the lip reaction force smaller than in the case where the second notch portion 12b21 is not provided. In this respect as well, a sudden change in the lip reaction force in response to a change in the compression amount (deflection amount) of the hollow lip 12 is prevented, and the occurrence of abnormal sliding noise due to the stick-slip phenomenon, etc., can be effectively suppressed.

[0082] Furthermore, the hollow lip 12 of the outer belt molding 1 in an embodiment according to the present invention is provided with an upper hollow lip portion 12c that extends while curving or bending so as to be concave toward the hollow portion 12d between the upper end of the glass-side hollow lip portion 12a and the upper end of the skeleton-side hollow lip portion 12b, and the upper hollow lip portion 12c is provided with an upper hollow lip skeleton-body abutment surface 12c1 that abuts against the skeleton inner body 11b when the hollow lip 12 is pushed by the door glass 24 and falls toward the skeleton 11.

[0083] Therefore, when the door glass 24 rises further and the hollow lip 12 is further compressed, in the hollow lip 12 of the outer belt molding 1 of the vehicle door of the embodiment, the upper hollow lip skeleton body abutment surface 12c1 of the upper hollow lip portion 12c abuts against the upper inner skeleton body 11b1 of the skeleton body 11 and receives a reaction force from the door glass 24, and the lip reaction force of the hollow lip 12 is increased compared to when a part of the hollow lip 12, such as the upper hollow lip skeleton body abutment surface 12c1 of the upper hollow lip portion 12c, does not abut against the upper inner skeleton body 11b1 of the skeleton body 11, so the door glass 24 can be pressed firmly and vibration of the door glass 24 can be reliably prevented.

[0084] Furthermore, the hollow lip 12 of the outer belt molding 1 of the embodiment according to the present invention is provided with a frame-side hollow lip curved surface 12e that abuts against the surface opposite to the glass-contacting surface 12a1 of the glass-side hollow lip portion 12a when the hollow lip 12 is pushed by the door glass 24 and falls toward the frame 11.

[0085] Therefore, in the outer belt molding 1 of the vehicle door of the embodiment, when the window portion 23 is fully closed or immediately before that, when the compression amount of the door glass 24 is in the range of 5.0 to 6.0 mm, the reaction force that the hollow lip 12 receives from the door glass 24 can be received at three points: the fixed portion 12a3 between the glass-side hollow lip portion 12a and the lower inner skeletal body 11b3, the upper inner skeletal body 11b1 of the skeleton body 11 with which the upper hollow lip skeleton-body abutment surface 12c1 abuts, and the skeleton-body-side hollow lip curved surface 12e abutting against the glass-side hollow lip portion 12a. This allows the lip reaction force of the hollow lip 12 to be rapidly increased, thereby increasing the holding force of the door glass 24. This more reliably prevents the door glass 24 from vibrating when driving with an increased area of ​​the door glass exposed to the window, such as when driving with a ventilation gap between the upper end of the door glass 24 and the door sash 22.

[0086] The above describes a preferred embodiment of the present invention with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment, and the shapes and combinations of the components shown in the above-described embodiment are merely examples and can be modified in various ways based on design requirements, etc., within the scope of the spirit of the present invention.

[0087] For example, in the above embodiment, the skeleton-side hollow lip portion 12b of the hollow lip 12 of the outer belt molding 1 is described as having two notches, the first notch portion 12b11 and the second notch portion 12b21. However, in the present invention, it is of course possible to provide the hollow lip 12 with one or more notches other than the first notch portion 12b11 and the second notch portion 12b21, thereby providing three or more notches, or it is even possible to provide only the first notch portion 12b11 and omit the second notch portion 12b21. If the second notch portion 12b21 is omitted, the upper boundary portion 12f of the skeleton-side hollow lip will not bend at the second notch portion 12b21 after abutting against the upper inner skeleton body 11b1 of the skeleton 11, and the lip reaction force will be greater than when the second notch portion 12b21 is provided. Although sliding noise will be more likely to occur, vibration of the door glass 24 can be reliably suppressed. Therefore, the first and second objects of the present invention can be achieved simply by providing the first notch portion 12b11 in the skeleton-side hollow lip portion 12b and devising the shape of the hollow lip 12.

[0088] In the above embodiment, when the hollow lip 12 abuts against the door glass 24 and is compressed, the hollow lip 12 is configured to bend significantly with the first notch portion 12b11 and the second notch portion 12b21 provided in the frame-body-side hollow lip portion 12b of the hollow lip 12 of the outer belt molding 1 as bending points. Therefore, when the amount of compression increases to about 3.0 mm, first, as shown in FIG. 4, the frame-body-side hollow lip upper boundary portion 12f, which is the boundary portion between the frame-body-side hollow lip upper extension portion 12b2 and the upper hollow lip portion 12c, abuts against the upper frame-body inner body 11b1 of the frame body 11, and receives a reaction force from the door glass 24 on the hollow lip 12. When the amount of compression increases from 3.0 mm to about 5.0 mm, the area where the upper hollow lip frame-body abutting surface 12c1 abuts against the upper frame-body inner body 11b1 of the frame body 11 gradually increases, as shown in FIGS. 5 and 7. It has been explained that the skeleton-side hollow lip curved surface 12e between the hollow lip base 12b1 and the skeleton-side hollow lip upper extension 12b2 abuts against the inner surface of the glass-side hollow lip portion 12a, causing the skeleton-side hollow lip curved surface 12e to receive a reaction force from the door glass 24 and increase the lip reaction force, but the present invention is not limited to this. The shape of the hollow lip 12 may be modified so that the skeleton-side hollow lip curved surface 12e abuts against the inner surface of the glass-side hollow lip portion 12a before the skeleton-side hollow lip upper boundary 12f and the upper hollow lip skeleton-body abutment surface 12c1, or it may be configured so that either the skeleton-side hollow lip upper boundary 12f, the upper hollow lip skeleton-body abutment surface 12c1, or the skeleton-side hollow lip curved surface 12e abuts against the inner surface of the upper skeleton inner body 11b1 of the skeleton 11 or the glass-side hollow lip portion 12a, respectively, increasing the lip reaction force. [Explanation of symbols]

[0089] 1 Outerbelt Mall 11 Skeleton 11a Skeletal lateral body 11a1 Epidermis 11b Skeletal medial body 11b1 Upper skeletal medial body 11b11 Door panel contact part 11b2 Medial protrusion of skeletal body 11b3 Lower skeletal medial body 11b31 Door panel latch 12 hollow lip 12a Glass side hollow lip 12a1 Glass sliding surface 12a2 Brush position support convex part 12b Hollow lip part on the skeleton side 12b1 Skeleton side hollow lip base 12b11 First notch 12b2 Upper extension of hollow lip on skeleton side 12b21 Second notch 12c Upper hollow lip 12c1 Upper hollow lip frame body contact surface 12d Hollow part 12e Skeleton side hollow lip curved surface 12f Upper boundary of hollow lip on skeleton side 13 Buffer lip 14 Anti-rotation lip 15 Design Lip 15a Notch for design lip 2. Front door 21 Door Panel 22 Door sash 23 Window 24 Door glass

Claims

1. a framework attached to an upper end of a door panel of a vehicle door; a hollow lip provided on the framework and in contact with the door glass; The hollow lip is a glass-side hollow lip portion extending from the framework toward the door glass and having a glass-sliding surface that comes into contact with the door glass; a skeleton-side hollow lip portion extending from a position above the glass-side hollow lip portion in the skeleton while facing the glass-side hollow lip portion, A belt molding for a vehicle door, wherein the hollow lip portion on the frame body side is provided with a notch portion that facilitates bending.

2. The vehicle door belt molding according to claim 1, The skeleton-side hollow lip portion is A belt molding for a vehicle door, characterized in that it has a skeleton-side hollow lip base portion extending diagonally upward from the skeleton body toward the door glass, and a first notch portion is provided as the notch portion in the skeleton-side hollow lip base portion.

3. 3. The vehicle door belt molding according to claim 2, The vehicle door belt molding is characterized in that the skeleton-side hollow lip portion further has a skeleton-side hollow lip upper extension portion that bends toward the skeleton at the upper end of the skeleton-side hollow lip base portion and extends diagonally upward, and a second notch portion is provided as the notch portion in the skeleton-side hollow lip upper extension portion.

4. The vehicle door belt molding according to claim 2 or 3, an upper hollow lip portion is provided between an upper end of the glass-side hollow lip portion and an upper end of the framework-side hollow lip portion so as to form a hollow portion; The upper hollow lip portion has: A belt molding for a vehicle door, characterized in that an upper hollow lip frame body abutment surface is provided that abuts against the frame body when the hollow lip is pushed by the door glass and falls toward the frame body.

5. The vehicle door belt molding according to claim 2 or 3, The skeleton-side hollow lip portion has A belt molding for a vehicle door is characterized in that when the hollow lip is pushed by the door glass and falls toward the frame body, a frame body side hollow lip curved surface is provided that abuts against the surface of the glass side hollow lip portion opposite the glass sliding surface.

Citation Information

Patent Citations

  • JP1977002815U

  • Door belt molding for automobile

    JP1997020141A