JP2004322957A - Belt line molding for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt line molding excellent in appearance around a seal lip outside of an automobile and sealing properties. <P>SOLUTION: The belt line molding 20 is formed of a hard material, and shaped in a substantially inverse U-shaped cross section consisting of a car outer side sidewall 21, an upper wall 22, and a car inner side sidewall 23. A decoration member 27 is attached to the surface of the outer sidewall, and the side end of the decoration member covers the outer sidewall 21 to the vicinity of the front end. A car outer side seal lip 26 is provided in the front end of the outer sidewall. The seal lip 26 is formed of a soft material with a plurality of bent parts midway. When the belt line molding 20 is attached to an door outer panel 11, the bent part of the seal lip contacts the side end of the decoration member. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a belt line molding attached along an upper edge of a door outer panel of an automobile door.
[0002]
[Prior art]
A belt line molding that covers and decorates and seals between the door glass and the upper edge opening of the automobile door outer panel is attached to the door belt line of the automobile door, that is, the upper edge of the door panel.
The belt line molding is attached to the outer panel of the automobile door to seal the outside of the door glass, and the glass inner molding is attached to the inner panel or the door trim of the automobile door to seal the interior of the door glass.
[0003]
As shown in FIG. 5, the conventional belt line molding 120 is attached to a flange portion 11b provided at the upper end of an outer panel 11 of an automobile door, and has two glass seal lips 130 whose tips abut on the outer surface of the door glass 2. , 131.
The belt line molding 120 has a substantially inverted U-shaped cross-section, and has a substantially inverted U-shaped cross-section including an outer side wall 121, an upper wall 122, and an inner side wall 123. An inner side retaining lip 124 is provided from the inner surface of the outer side wall 121, and an inner side retaining lip 125 is provided from the inner surface of the inner side wall 123, respectively. The flange portion 11b provided at the upper end of the door outer panel 11 is inserted into the inside of a belt line molding 120 having a substantially inverted U-shaped cross section, and the holding lips 124 and 125 abut on both surfaces of the flange portion 11b to form a belt line. The molding 120 is held (for example, see Patent Document 1).
[0004]
A decorative member 127 is integrally attached to the outer surface of the vehicle outer side wall 121. The decorative member 127 is attached to the vehicle exterior side wall 121 simultaneously with or immediately after the extrusion when the belt line molding 120 is formed by the extrusion.
As shown in FIG. 6, an outer seal lip 126 formed of a soft material is provided at the tip of the outer wall 121, that is, at a portion facing the door outer panel 11, and the belt line molding 120 is attached to the flange portion 11 b. At the same time, the space between the belt line molding 120 and the door outer panel 11 is sealed.
[0005]
At this time, the decorative member 127 covers the outer side wall 121 to the side end of the outer side wall 121, that is, the vicinity of the tip of the outer side wall 121 in the width direction, and the side end of the decorative member 127 is It is covered by an outer seal lip 126.
FIG. 6 is an enlarged view of the vicinity of the side end of the vehicle outer side wall 121. As shown in FIG. 6, the outer seal lip 126 is integrally formed near the tip of the outer sidewall 121 by fusing with the outer sidewall 121, and a part thereof covers the side end of the decorative member 127. ing.
[0006]
However, if the adhesion between the outer seal lip 126 and the decorative member 127 is not sufficient, the outer seal lip 126 covers the decorative member 127 when the outer seal lip 126 comes into contact with the door outer panel 11. The outer seal lip 126 is pulled in the direction in which the part opens. For this reason, cracks may be formed between the outer seal lip 126 and the decorative member 127.
As a result, dust or dust or car wax accumulates on the opened portion, which not only impairs the appearance but also causes the decorative member 127 to be peeled off from that portion, the exterior seal lip 126 and the exterior side wall. There was also a risk that a groove would be formed between the groove and 121.
Further, when the outer seal lip 126 abuts on the door outer panel 11, the entire lip only elastically bends, so there is little room to bend and absorb the dimensional variation between the door outer panel 11 and the door outer panel. In some cases, the end of the vehicle-side seal lip 126 may not be able to sufficiently contact the door outer panel 11 due to the variation in the dimension with respect to 11, and the sealing performance may be reduced.
[0007]
[Patent Document 1]
JP-A-7-186235 (page 3-4, FIG. 1)
[0008]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a belt line molding having a good appearance and a good sealing property in the vicinity of a vehicle exterior seal lip.
[0009]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a belt line molding mounted along an upper edge of a door outer panel of an automobile door, wherein the belt line molding is formed of a hard material, The wall has a substantially inverted U-shaped cross section composed of a vehicle inner side wall, and a decorative member is attached to the surface of the vehicle outer side wall, and the side end of the decorative member covers the vehicle outer side wall to near the tip of the vehicle outer side wall. An outer seal lip is provided at the end of the outer side wall to extend downward and seal between the outer side wall and the door outer panel. The outer seal lip is formed of a soft material having a plurality of bent portions in the middle thereof, and a belt line molding is provided. When the lip is attached to the door outer panel, the bent portion of the vehicle-side seal lip abuts on the decorative member side end.
[0010]
According to the first aspect of the present invention, since the belt line molding is formed of a hard material and has a substantially inverted U-shaped cross section including the vehicle outer side wall, the upper wall, and the vehicle inner side wall, the flange portion of the door outer panel is formed. By sandwiching both sides with a hard material having high rigidity, the belt line molding can be held on the flange portion. Therefore, when the core metal is not buried in the belt line molding, the weight can be reduced.
The decorative member is attached to the surface of the vehicle exterior side wall, and the side end of the decoration member covers the vehicle exterior side wall up to the vicinity of the tip of the vehicle exterior side wall, so that a decorative pattern is formed on the belt line that stands out when the belt line molding is attached to the door. Because it can be provided, it is preferable in design, and the decorative member is provided in the width direction up to the vicinity of the tip of the outer side wall, so that when viewed from the outside of the vehicle, the decorative mall is provided over the entire width of the belt line mall in a range visible from the vehicle outside. Since it can be provided, the upper edge of the door outer panel has a good appearance.
[0011]
Since the vehicle exterior seal lip is provided at the end of the vehicle exterior side wall and extends downward to seal between the door outer panel, rainwater or the like can be prevented from entering between the belt line molding and the door outer panel.
Since the outer seal lip is formed of a soft material having a plurality of bent portions in the middle, the outer seal lip is a soft material and rich in elasticity, and is bent at the plurality of bent portions, so that the flexibility of the outer seal lip is improved. Since the entire length of the lip, that is, the amount of deflection of the lip in the vertical direction increases, even if the gap between the outer side wall and the door outer panel varies, the tip of the outer seal lip can always contact the door outer panel, The sealing performance is improved.
[0012]
When the belt line molding is attached to the door outer panel, the bent portion of the outer seal lip comes into contact with the decorative member side end, so that the belt line molding is provided between the bent portion of the outer seal lip and the decorative member. Since there is space when manufacturing the outer seal lip, there is no need to consider the adhesion between the decorative member and the outer seal lip, the forming of the outer seal lip is easy, and the bent portion of the outer seal lip and the decorative member side end. Even if dust or the like accumulates between them, the bent portion and the end portion on the decorative member side are not bonded to each other, so that dust and the like can be easily removed, so that cleaning is easy.
In addition, after the vehicle is mounted, even if the outer seal lip vibrates due to the vibration of the vehicle, the vibration can be absorbed by deformation of the bent portion, and the joining portion between the outer side wall and the outer seal lip. Since stress is not applied to the portion, no crack is generated in this portion.
[0013]
According to the second aspect of the present invention, the bent portion of the outer seal lip has a substantially Z-shaped cross section, and has two bent portions of a first bent portion and a second bent portion in order from the outer side wall. The two bent portions are in contact with the decorative member side end.
[0014]
According to the second aspect of the present invention, the bent portion of the outer seal lip is substantially Z-shaped in cross section, and has two bent portions of a first bent portion and a second bent portion in order from the outer side wall. Therefore, the two bent portions are easily bent, the amount of stroke that can bend in the vertical direction as a whole of the outer seal lip becomes longer, and sufficient sealing is performed even if the gap between the outer seal lip and the door outer panel varies. can do.
When the belt line molding is attached to the door outer panel, since the second bent portion is at an acute angle, the tip of the outer seal lip faces toward the back of the door outer panel and is difficult to see from the outside of the vehicle. The seal lip on the outside of the vehicle is less noticeable, which is preferable in terms of design. Also, since the second bent portion abuts the decorative member side end, the side end of the decorative member can be covered, and the second bent portion can push the seal lip tip to the door outer panel. The performance is improved.
[0015]
According to a third aspect of the present invention, the bent portion of the outer seal lip has a substantially stepped cross section, and has two bent portions of a first bent portion and a second bent portion in order from the outer side wall. The bent portion contacts the decorative member side end.
[0016]
According to the third aspect of the present invention, the bent portion of the outer seal lip has a substantially stepped cross section, and has two bent portions of a first bent portion and a second bent portion in order from the outer side wall, Since the second bent portion has a substantially right angle, the tip of the seal lip can contact the door outer panel at a substantially right angle, and the pressing force of the tip of the seal lip increases, thereby improving the sealing performance.
In addition, since the tip of the seal lip can be directed to the outside of the vehicle, no recess is formed between the tip of the seal lip and the door outer panel, and dust and the like do not accumulate.
[0017]
According to a fourth aspect of the present invention, a glass seal lip is provided integrally on the upper wall or the vehicle inner side wall to slide between the door glass and seal between the door glass and the door outer panel. .
[0018]
According to the fourth aspect of the present invention, the upper wall or the inner side wall is integrally provided with a glass sealing lip that slides with the door glass and seals between the door glass and the door outer panel. Since it is firmly held by the flange part, the door glass can be raised and lowered and the glass sealing lip can always properly contact the door glass, and the glass is closed between the door glass and the door outer panel Sealing can be performed both at the time of elevating and lowering.
[0019]
According to a fifth aspect of the present invention, an outer holding lip is provided on the inner surface of the outer side wall, an inner holding lip is provided on the inner surface of the inner side wall, and the flange is held by the inner holding lip and the outer holding lip. The bent locking portion provided at the tip of the inner side wall is locked to the tip locking portion of the door outer panel.
[0020]
According to the fifth aspect of the present invention, the outer side holding lip is provided on the inner surface of the outer side wall, the inner side holding lip is provided on the inner surface of the inner side wall, and the flange portion is held by the inner side holding lip and the outer side holding lip. Even if the thickness of the flange portion varies, the belt line molding can be held on the flange portion without rolling even if the door glass is moved up and down or sucked out of the vehicle.
Since the bent locking part provided at the tip of the inner side wall is locked to the tip locking part of the door outer panel, when installing the belt line molding, only the flange part needs to be inserted, and after installation, the door glass rises In this case, even if the belt line molding is pulled up due to the sliding resistance of the door glass, the bent locking portion is locked to the leading edge locking portion of the door outer panel, so that it becomes difficult to pull out.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a cross section of the glass outer weather strip according to the embodiment of the present invention, and is a cross sectional view taken along a line AA in FIG.
The belt line molding 20 is attached to the flange portion 11b of the outer panel 11 of the vehicle door 1 provided on the upper edge of the door panel of the vehicle door 1 on which the door glass 2 moves up and down.
[0022]
The belt line molding 20 is formed of a hard material, has a substantially inverted U-shaped cross section, and includes an outer side wall 21, an inner side wall 23, and an upper wall 22.
The outer side wall 21 has an outer side retaining lip 24 on the inner surface having a substantially inverted U-shaped cross section, and the inner surface of the inner side side wall 23 has an inner side retaining lip 25. The lip 25 abuts on both surfaces of the flange portion 11b of the outer panel 11, holds the belt line molding 20, and seals rainwater or the like that has entered the inside of the belt line molding 20.
[0023]
A strip-shaped decorative member 27 is attached to substantially the entire outer surface of the vehicle outer side wall 21. As the decorative member 27, a synthetic resin laminated film having a metallic luster, a stainless steel thin film, a film having a decorative pattern on its surface, or the like can be used. For a synthetic resin laminated film having a metallic luster, for example, a film in which chromium is provided in a thin layer by sputtering via an adhesive layer on a base film made of polypropylene, and a protective film such as polyester is provided thereon may be used. it can.
[0024]
The end of the decorative member 27 on the upper wall 22 side in the width direction covers most of the upper wall 22 and reaches a base of a first glass seal lip 30 described later, and the end of the first glass seal lip 30 is formed. Covered at the root. For this reason, the end of the decorative member 27 on the upper wall 22 side in the width direction is protected by the first glass seal lip 30.
The end of the decorative member 27 on the opening side of the outer side wall 21 in the width direction extends to a position where the end of the opening of the outer side wall 21 is partially covered.
Thus, the surface of the belt line molding 20 that can be seen from the outside of the vehicle can be covered almost entirely with the decorative member, so that the appearance is excellent.
[0025]
As shown in FIG. 2, an outer seal lip 26 is integrally provided at the tip of the opening of the outer side wall 21 below a portion not covered by the decorative member 27.
The vehicle exterior seal lip 26 is formed of a soft material and has a substantially Z-shaped or stepped cross section. The seal lip holding portion 26a and the seal lip first It comprises a bent portion 26b, a seal lip connecting portion 26c, a second seal lip bent portion 26d, and a seal lip tip portion 26e.
[0026]
The seal lip holding portion 26 a is provided so as to extend downward from a portion of the opening of the vehicle exterior side wall 21 which is not covered by the decorative member 27 to a length of about half of the gap with the door outer panel 11. A seal lip first bent portion 26b is provided at a tip of the seal lip holding portion 26a, and a seal lip connecting portion 26c provided continuously with the seal lip first bent portion 26b is substantially horizontally moved to the vehicle outer side surface of the vehicle outer side wall 21. It extends to the outside of the vehicle up to the same or slightly retracted position. From the seal lip second bent portion 26d provided at the tip of the seal lip connecting portion 26c, a seal lip tip portion 26e provided continuously to the seal lip second bent portion 26d is provided so as to extend downward.
[0027]
If the angle between the seal lip first bent portion 26b and the seal lip second bent portion 26d is an acute angle, the cross-sectional shape of the outer seal lip 26 is substantially Z-shaped. It becomes almost step-like. In the case where the cross-sectional shape is substantially Z-shaped, the seal lip tip portion 26e faces the depth direction of the door outer panel 11 and becomes inconspicuous from the outside of the vehicle. When the cross-sectional shape is substantially stair-like, the seal lip tip 26e can abut the door outer panel 11 and the seal lip tip 26e can contact the door outer panel 11 at a substantially right angle. It becomes large, and the sealing property is improved. In addition, since the seal lip tip 26e can be directed to the outside of the vehicle, no recess is formed between the seal lip tip and the door outer panel, and dust and the like do not accumulate.
When the seal lip tip portion 26e of the vehicle exterior seal lip 26 abuts on the door outer panel 11, the seal lip second bent portion 26d abuts the side end of the decorative member 27 on the opening side of the exterior side wall 21 in the width direction, The side end of the decorative member 27 can be covered.
[0028]
As described above, the outer surface of the upper wall 22 is covered with the decorative member 27 over half or more. On the outer surface of the upper wall 22 that is not covered with the decorative member 27, a first glass seal lip 30 is integrally provided diagonally upward. At the joint base 30b of the first glass seal lip 30 with the upper wall 22, the joint base 30b integrally covers the side end of the decorative member 27.
On the lower surface of the first glass seal lip 30, a flocked portion 30a in which short fibers are flocked is provided. The flocked portion 30a contacts the door glass when the door glass 2 moves up and down, so that the sliding resistance with the door glass 2 can be reduced, and the door glass 2 can move up and down smoothly. Instead of the flocking, a material with low sliding resistance can be used on the surface of the first glass seal lip 30, for example, application of urethane paint or silicone paint, welding of polyethylene resin or polypropylene resin, or the like can be applied. .
[0029]
A second glass seal lip 31 is provided on the outer surface of the vehicle interior side wall 23. Similarly to the first glass seal lip 30, the second glass seal lip 31 is integrally provided obliquely upward, and a flocked portion 31a is provided on the lower surface. Thereby, the sliding resistance with the door glass 2 can be reduced. Note that one of the first glass seal lip 30 and the second glass seal lip 31 may be omitted depending on the condition of the vehicle body.
[0030]
In addition, a projection 29 is provided on the outer surface of the inner side wall 23 to prevent the second glass seal lip 31 from falling excessively and the door glass 2 from being pulled out to the outside of the vehicle.
Further, a bent locking portion 28 is provided on the inner surface of the distal end of the vehicle inner side wall 23 obliquely upward toward the opening in a hook shape. When the belt line molding 20 is attached to the flange portion 11b, the distal end locking portion 11c of the flange portion 11b and the bent locking portion 28 are locked, so that the belt line molding 20 can be prevented from coming off when the door glass is moved up and down. .
[0031]
Next, the operation of the vehicle exterior seal lip 26 when the belt line molding 20 is attached to the flange portion 11b will be described.
When the flange portion 11 b is inserted from the opening of the belt line molding 20 and attached, the outer seal lip 26 provided at the tip of the outer sidewall 21 abuts on the door outer panel 11. At this time, first, the seal lip tip portion 26e abuts on the door outer panel 11, the seal lip first bent portion 26b and the seal lip second bent portion 26d bend, and the outer surface of the seal lip second bent portion 26d is a decorative member. 27 is in contact with the side end.
As described above, since the seal lip first bent portion 26b and the seal lip second bent portion 26d are easily bent, even if the seal lip tip portion 26e vibrates between the door outer panel 11 and the seal lip holding portion 26a, Since no stress is applied to the joint with the tip of the outer side wall 21, no crack is generated at the joint.
[0032]
At this time, the side end of the decorative member 27 is covered by the seal lip second bent portion 26d and hidden from the vehicle outside, and the seal lip second bent portion 26d is pressed by the elastic force of the seal lip tip portion 26e. Therefore, it is possible to prevent dust, rainwater, and the like from entering between the seal lip second bent portion 26d and the decorative member 27. Even if it enters, the seal lip second bent portion 26d and the decorative member 27 are not bonded to each other, and can be removed because the seal lip tip portion 26e has elasticity.
Further, since the second bent portion 26d of the seal lip presses the decorative member 27, peeling of the decorative member 27 can be prevented.
[0033]
Next, a method for manufacturing the belt line molding 20 will be described.
The belt line molding 20 is formed by extrusion.
The outer side wall 21, the upper wall 22, and the inner side wall 23 are formed of a hard material. For example, a hard synthetic resin such as polypropylene, a hard olefin-based thermoplastic elastomer (TPO), or a hard solid rubber may be used. it can. As the hard synthetic resin, polypropylene resin, polyethylene resin, nylon resin, vinyl chloride resin and the like can be used. When a hard synthetic resin member is used, the belt line molding 20 has a strong force for gripping the flange portion 11b of the outer panel 11, and there is no need to bury a metal insert. Since there is no metal insert, the weight of the belt line molding 20 can be reduced, and since it is not necessary to remove metal, it is suitable for recycling.
When solid rubber is used, a metal or hard resin core material can be used inside.
[0034]
The first glass seal lip 30, the second glass seal lip 31, and the vehicle exterior seal lip 26 are formed of a soft material. For example, a soft synthetic resin, a soft thermoplastic elastomer (TPO), or a soft rubber is used. Can be.
As the soft rubber, EPDM (ethylene-propylene-diene copolymer), chloroprene rubber or the like can be used, and either a solid type or a foam type can be used. As the thermoplastic elastomer, an olefin-based thermoplastic elastomer, a polyamide-based thermoplastic elastomer, or the like can be used. As the soft synthetic resin, a vinyl chloride resin, a soft polyethylene, or the like can be used.
[0035]
The decorative member 27 can be formed so as to be integrally extruded through an extrusion die simultaneously with the extrusion molding, or formed by pressing the decorative member 27 against the belt line molding 20 immediately after extruding the belt line molding 20 but before cooling. You can also. At this time, since the outer seal lip 26 and the side end of the decorative member 27 are not in contact with each other, the decorative member 27 can be easily attached. When the material of the base film of the decorative member 27 is, for example, polypropylene and the hard material is polypropylene or an olefin-based thermoplastic elastomer, the decorative member 27 is attached to the high-temperature side wall 21 and the upper wall 22 immediately after extrusion. By crimping, it can be easily fused and joined together without an adhesive.
Two types of materials, a soft material and a hard material, are simultaneously extruded using a twin-screw extruder. When a rubber is used, it is vulcanized by a usual method such as hot air vulcanization or high frequency vulcanization using a vulcanization tank after extrusion molding.
[0036]
【The invention's effect】
According to the present invention, since the outer side seal lip having a plurality of bent portions is provided at the end of the outer side wall of the belt line molding having the decorative member, the bent portion presses the side end of the decorative member. It is possible to obtain a belt line molding which is excellent in aesthetic appearance and in which dust and the like do not accumulate in between, and which does not peel off the side end of the decorative member, and which is easy to manufacture.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a mounting state of a belt line molding according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a portion of a front end of an outer side wall and an outer seal lip of a belt line molding according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a tip of an outer side wall of a belt line molding and a part of an outer seal lip showing another embodiment of the present invention.
FIG. 4 is a partial side view of the automobile.
FIG. 5 is a cross-sectional view showing an attached state of a conventional belt line molding.
FIG. 6 is a cross-sectional view showing a front end of an outer side wall of a conventional belt line molding and a portion of an outer seal lip.
[Explanation of symbols]
1 Door 11 Door outer panel 11b Flange section 20 Belt line molding 21 Outer side wall 22 Upper wall 23 Inner side wall 26 Outer side seal lip 26b Seal lip first bent section 26d Seal lip second bent section 26e Seal lip tip section 27 Decorative member 28 Flexure locking part

Claims (5)

In a belt line molding attached along the upper edge of a door outer panel of an automobile door,
The belt line molding is formed of a hard material, and has a substantially inverted U-shaped cross section including a vehicle outer side wall, an upper wall, and a vehicle inner side wall,
A decorative member is attached to the surface of the outer side wall, and the side end of the decorative member covers the outer side wall up to near the tip of the outer side wall,
At the tip of the outer side wall, an outer side seal lip is provided extending downward and sealing between the outer side wall and the door outer panel, and the outer side seal lip is formed of a soft material having a plurality of bent portions in the middle, A belt line molding for an automobile, wherein when the belt line molding is attached to the door outer panel, a bent portion of the outer seal lip abuts on the side of the decorative member. The bent portion of the outer seal lip has a substantially Z-shaped cross section, and has two bent portions of a first bent portion and a second bent portion in order from the end connected to the outer side wall. The automobile belt line molding according to claim 1, wherein a portion abuts on the end portion on the decorative member side. The bent portion of the outer seal lip has a substantially stepped cross section, and has two bent portions of a first bent portion and a second bent portion in order from an end connected to the outer side wall. The belt line molding for an automobile according to claim 1, wherein the abutment comes into contact with the decorative member side end. 4. A glass seal lip integrally provided on the upper wall or the vehicle inner side wall, the glass seal lip sliding with a door glass to seal between the door glass and the door outer panel. 4. A belt line molding for an automobile according to item 1. An outer holding lip is provided on the inner surface of the outer side wall, an inner holding lip is provided on the inner surface of the inner side wall, and the flange is held by the inner holding lip and the outer holding lip. The automobile belt line molding according to any one of claims 1 to 4, wherein a bent locking portion provided at a distal end of the side wall is locked to a distal locking portion of the door outer panel.

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