JP3876492B2 - Automotive door weather strip - Google Patents

Automotive door weather strip Download PDF

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Publication number
JP3876492B2
JP3876492B2 JP20250097A JP20250097A JP3876492B2 JP 3876492 B2 JP3876492 B2 JP 3876492B2 JP 20250097 A JP20250097 A JP 20250097A JP 20250097 A JP20250097 A JP 20250097A JP 3876492 B2 JP3876492 B2 JP 3876492B2
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Japan
Prior art keywords
door
vehicle
weather strip
opening edge
door frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP20250097A
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Japanese (ja)
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JPH1128936A (en
Inventor
満男 浜端
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Publication date
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Priority to JP20250097A priority Critical patent/JP3876492B2/en
Publication of JPH1128936A publication Critical patent/JPH1128936A/en
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Publication of JP3876492B2 publication Critical patent/JP3876492B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00—Sealing arrangements
    • B60J10/20—Sealing arrangements characterised by the shape
    • B60J10/24—Sealing arrangements characterised by the shape having tubular parts
    • B60J10/248—Sealing arrangements characterised by the shape having tubular parts having two or more tubular cavities, e.g. formed by partition walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00—Sealing arrangements
    • B60J10/80—Sealing arrangements specially adapted for opening panels, e.g. doors
    • B60J10/86—Sealing arrangements specially adapted for opening panels, e.g. doors arranged on the opening panel

Description

【０００１】
【発明の属する技術分野】
本発明は自動車ドアのドアフレームに装着されるウエザストリップに関するものである。
【０００２】
【従来の技術】
図２および図３に示すように、ドアフレーム２を備えた自動車ドアの全周にはウエザストリップＷが装着されている。ウエザストリップＷは、ドアフレーム２に装着されて車体のフロントピラー３６またはリヤピラー３８を含むルーフサイド３に沿うドア開口縁に圧接する部分と、その他の部分とは断面形状が相違することから、それぞれ別体の押出成形のウエザストリップＷ1 ，Ｗ2 を型成形で接続している。
【０００３】
図４は、ドアフレーム２に装着されてルーフサイド３に沿うドア開口縁３０に圧接されるウエザストリップの代表例を示すもので、ウエザストリップＷ1 は、ドアフレーム２の端面２１に取付けられる基部５と、基部５から膨出してドア開口縁３０の側面３１に圧接する中空状のメインシール部６と、基部５から伸出して先端がドア開口縁３０の外縁部３２に圧接するリップ状のサブシール部７を備えている。サブシール部７は、その途中から分枝してドアフレーム２の突縁２２の内面に圧接する背面リップ７１を備えている。一方、サブシール部をメインシール部６と同様に断面ほぼ円形の中空状に形成したものもある。
【０００４】
【発明が解決しようとする課題】
ところでリップ状のサブシール部７の先端部は保形性が充分でなく不安定であることから、図５に示すようにドア閉時に車内側へ巻込みが生じることがある。また、サブシール部７の先端部は、ドア建付けのバラツキでドア開口縁３０の外縁部３２とドアフレーム２の外周縁２３を形成する突縁２２の先端との間の隙間幅が小さいと、外縁部３２により押出されて車外側に飛び出した形となることがある。いずれの場合も、シール性能を低下させるとともに、ドアフレーム２まわりの見栄えを損なう。
【０００５】
一方、サブシール部を中空状に形成すると、上記の巻込みや飛び出しは少なくなるが、リップ状のサブシール部に比べドア閉力が増大する。そこでドア閉力を上げたいように中空状のサブシール部全体を薄肉にすると、ドア閉時に不規則に変形し、シール性能が安定しない。
【０００６】
そこで本発明は、不規則な変形が生じず、かつドア閉力をリップタイプと同程度に小さく維持し得る中空状のサブシール部を備えたドアウエザストリップを提供することを目的とするものである。
【０００７】
【課題を解決するための手段】
本発明は、ドアウエザストリップのサブシール部を中空状に形成する。そして、このサブシール部は、車内側の側面部をその中間部分が中空内方向へ膨出する断面ほぼＳ字状に形成するとともに車外側の側面部よりも薄肉に形成し、ドア閉時にドア開口縁の外縁部に当接する頂面部を車外側の側面部よりも薄肉で車内側の側面部よりも厚肉に形成し、かつ頂面部と車外側の側面部との連接部分を、他の部分よりも薄肉に形成する。サブシール部を、このように形成したことで、ドア開口縁に押付けられたときに、規則性をもって車内方向に首振り状に撓む。また、頂面部のドア開口縁への圧接状態は安定である。
【０００８】
【発明の実施の形態】
フロントドアを例にとると、図２および図３に示すように、ドア１の全周には押出成形したスポンジゴムのウエザストリップＷ1 ，Ｗ2 を型成形で接続したウエザストリップＷが一連に取付けられており、ドアフレーム２に取付けたウエザストリップＷ1 が、車体のフロントピラー３６を含むルーフサイド３に沿うドア開口縁に押付けられるようになっている。
【０００９】
図１（Ａ）に示すように、ウエザストリップＷ1 は基部５と、中空状のメインシール部６および同じく中空状のサブシール部８を備えている。基部５は肉抜きとされており、ドアフレーム２の外周端面２１に所定間隔でクリップ止めされるとともに両面接着テープ９により固着されている。メインシール部６はサブシール部８に対して車内側に位置しており、ドア閉時に車体のドア開口縁３０の側面３１に押付けられる。サブシール部８の車外側の側面部８２の根元は基部５の一端に接続し、車内側の側面部８１の根元はメインシール部６の車外側の側面部に接続し、サブシール部８の両側面部８１，８２をつなぐ頂面部８３がドア閉時に車体のドア開口縁３０の外縁部３２で受けられるようになっている。上記車外側の側面部８２の上端部は、ウエザストリップ取付状態でドアフレーム２の突縁２２の先端部内面に当接せしめてある。そして頂面部８３からメインシール部６との接続部に至る車内側の側面部８１は、中間部分が中空内方向へ膨出する断面Ｓ字形としてある。
【００１０】
サブシール部の肉厚は、車外側の側面部８２の根元からドアフレーム突縁２２先端との当接部へ至る間が最も厚くしてある。車内側の側面部８１は薄肉で、変形容易としてある。また、頂面部８３と車外側の側面部８２との連接部分８４も薄肉とし変形容易としてある。頂面部８３の肉厚は、車外側の側面部８２よりも若干薄く、上記連接部分８４および車内側の側面部８１よりも厚くしてある。
【００１１】
ドア閉時、サブシール部８はその頂面部８３が車体のドア開口縁３０の外縁部３２に当接する。そしてドアが完全に閉じられるまでの間、連接部分８４が屈曲し、車内側の側面部８１の中間部分が更に中空内方向へ進入するように撓み、該中間部から連接部分８４に至るサブシール部８の頭部は、若干車内方向に首振り状に傾斜しつつ、つぶれ変形する。この場合、頂面部８３は、連接部分８４および側面部８１よりも厚肉としてあるから、連接部分８４および側面部８１の変形に伴って不規則な変形をすることなく、単に上記外縁部３２の形状に追従して変形する。従ってサブシール部８はドアを閉じるたびに同じ変形を規則的に繰り返す。
【００１２】
しかして、上記ウエザストリップＷ1 においては、車体のドア開口縁３０の外縁部３２と、ドアフレーム２の外周縁２２との間の隙間幅のバラツキは、サブシール部８の上記連接部分８４と側面部８１の変形で吸収される。そしてサブシール部８は上記外縁部３２に押付けられると、車内側へ首振り状に変形するから、上記隙間幅のバラツキにかかわらず、車外方向へ飛び出すことはない。また連接部分８４および側面部８１により撓みやすくしてあるから、ドア閉力を増大させない。更に、リップタイプのサブシール部に対しドア開口縁３０とドアフレーム２との間を遮断する壁（側面部８１，８２）が二重となり、かつドア閉時に側面部８１の中間部分が対向する側面部８２に近接してサブシール部８の頭部が閉断面に近い状態になるため、車外からの遮音性も向上する。
【００１３】
なお、本発明はフロントドアに限らず、リヤドアのドアフレームに取付けられてクォータピラーを含む後部ルーフサイドに沿うドア開口縁に圧接するウエザストリップにも適用され得る。また、ウエザストリップのドアフレームへの取付けは、両面接着テープに限らず、ドアフレームの外周端面にリテーナを設け、あるいは外周端面自体をリテーナ形状に成形し、これ等を介して取付けることもできる。
【００１４】
【発明の効果】
本発明のドアウエザストリップを用いることで、ドアフレームとルーフサイドに沿う車体のドア開口縁との間をドア閉力を上げることなく、またドアウエザストリップに不規則な変形が生じることなく、見栄えよく、かつシール性良好にシールすることができる。
【図面の簡単な説明】
【図１】図１（Ａ）は図２のＡ−Ａ線に沿う位置での本発明のドアウエザストリップの取付状態断面図、図１（Ｂ）はドア閉時における本発明のドアウエザストリップの上記と同位置での変形状態を示す断面図である。
【図２】本発明のドアウエザストリップが適用される自動車の側面図である。
【図３】ドアまわりに取付けられるドアウエザストリップの全体図である。
【図４】従来のドアウエザストリップの図２のＡ−Ａ線に沿う位置での取付状態断面図である。
【図５】ドア閉時における従来のドアウエザストリップの上記と同位置での変形状態を示す断面図である。
【符号の説明】
２ ドアフレーム
３ ルーフサイド
３０ ドア開口縁
３２ 外縁部
Ｗ，Ｗ1 ，Ｗ2 ドアウエザストリップ
５ 基部
６ メインシール部
８ サブシール部
８１ 車内側の側面部
８２ 車外側の側面部
８３ 頂面部
８４ 連接部分[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a weather strip mounted on a door frame of an automobile door.
[0002]
[Prior art]
As shown in FIGS. 2 and 3, a weather strip W is attached to the entire periphery of the automobile door provided with the door frame 2. Since the weather strip W is attached to the door frame 2 and is in pressure contact with the door opening edge along the roof side 3 including the front pillar 36 or the rear pillar 38 of the vehicle body, the other portions have different cross-sectional shapes. Separately formed extrusion weather strips W 1 and W 2 are connected by molding.
[0003]
FIG. 4 shows a typical example of a weather strip that is attached to the door frame 2 and pressed against the door opening edge 30 along the roof side 3. The weather strip W 1 is attached to the end face 21 of the door frame 2. Base 5, a hollow main seal portion 6 that bulges from the base portion 5 and presses against the side surface 31 of the door opening edge 30, and a lip that extends from the base portion 5 and has a tip pressed against the outer edge portion 32 of the door opening edge 30. The sub seal part 7 is provided. The sub seal portion 7 includes a rear lip 71 that branches from the middle of the sub seal portion 7 and presses against the inner surface of the protruding edge 22 of the door frame 2. On the other hand, there is a sub seal portion formed in a hollow shape having a substantially circular cross section, like the main seal portion 6.
[0004]
[Problems to be solved by the invention]
By the way, since the tip end portion of the lip-shaped sub-seal portion 7 is not stable and unstable, the lip-shaped sub seal portion 7 may be wound inside the vehicle when the door is closed as shown in FIG. Further, the tip end portion of the sub seal portion 7 has a small gap width between the outer edge portion 32 of the door opening edge 30 and the tip end of the protruding edge 22 forming the outer peripheral edge 23 of the door frame 2 due to variations in door construction. In some cases, the outer edge portion 32 may be pushed out to the outside of the vehicle. In either case, the sealing performance is deteriorated and the appearance around the door frame 2 is impaired.
[0005]
On the other hand, when the sub-seal portion is formed in a hollow shape, the above-described winding and popping out are reduced, but the door closing force is increased as compared with the lip-shaped sub-seal portion. Therefore, if the entire hollow sub-seal part is made thin so as to increase the door closing force, it is irregularly deformed when the door is closed, and the sealing performance is not stable.
[0006]
Therefore, the present invention has an object of providing a door weather strip having a hollow sub-seal portion that does not cause irregular deformation and can maintain a door closing force as small as a lip type. is there.
[0007]
[Means for Solving the Problems]
In the present invention, the sub seal portion of the door weather strip is formed in a hollow shape. The sub seal portion is formed with a side surface portion on the inner side of the vehicle having a substantially S-shaped cross-section with an intermediate portion bulging in the hollow inward direction and thinner than the side surface portion on the outer side of the vehicle. The top surface portion that contacts the outer edge portion of the edge is formed thinner than the side surface portion outside the vehicle and thicker than the side surface portion inside the vehicle, and the connecting portion between the top surface portion and the side surface portion outside the vehicle is the other portion. Form thinner than. By forming the sub seal part in this way, when pressed against the door opening edge, the sub seal part bends in a swinging manner in the vehicle interior direction with regularity. Moreover, the press-contact state to the door opening edge of a top surface part is stable.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Taking the front door as an example, as shown in FIGS. 2 and 3, a weather strip W is formed by connecting extruded sponge rubber weather strips W 1 , W 2 by molding at the entire periphery of the door 1. The weather strip W 1 attached to the door frame 2 is pressed against the door opening edge along the roof side 3 including the front pillar 36 of the vehicle body.
[0009]
As shown in FIG. 1A, the weather strip W 1 includes a base 5, a hollow main seal portion 6, and a hollow sub seal portion 8. The base 5 is thinned, and is clipped to the outer peripheral end surface 21 of the door frame 2 at a predetermined interval and fixed by a double-sided adhesive tape 9. The main seal portion 6 is located on the vehicle inner side with respect to the sub seal portion 8 and is pressed against the side surface 31 of the door opening edge 30 of the vehicle body when the door is closed. The base of the side surface portion 82 on the vehicle exterior side of the sub seal portion 8 is connected to one end of the base portion 5, and the root of the side surface portion 81 on the vehicle interior side is connected to the side surface portion on the vehicle exterior side of the main seal portion 6. A top surface 83 connecting 81 and 82 is received by the outer edge 32 of the door opening edge 30 of the vehicle body when the door is closed. The upper end portion of the side surface portion 82 outside the vehicle is brought into contact with the inner surface of the distal end portion of the protruding edge 22 of the door frame 2 in a weather strip attached state. The side surface portion 81 on the vehicle inner side extending from the top surface portion 83 to the connection portion with the main seal portion 6 has an S-shaped cross section in which an intermediate portion bulges in the hollow inward direction.
[0010]
The thickness of the sub seal portion is the largest between the base of the side surface portion 82 on the vehicle outer side and the contact portion with the front end of the door frame protruding edge 22. The side part 81 inside the vehicle is thin and easy to deform. Further, the connecting portion 84 between the top surface portion 83 and the side surface portion 82 on the outside of the vehicle is also thin and easy to deform. The thickness of the top surface portion 83 is slightly thinner than the side portion 82 on the outside of the vehicle, and thicker than that of the connecting portion 84 and the side portion 81 on the inside of the vehicle.
[0011]
When the door is closed, the top surface portion 83 of the sub seal portion 8 comes into contact with the outer edge portion 32 of the door opening edge 30 of the vehicle body. Until the door is completely closed, the connecting portion 84 bends and bends so that the intermediate portion of the side surface portion 81 inside the vehicle further enters the hollow inward direction, and the sub seal portion extends from the intermediate portion to the connecting portion 84. The head of 8 is crushed and deformed while slightly tilting in an inward direction. In this case, since the top surface portion 83 is thicker than the connecting portion 84 and the side surface portion 81, the outer edge portion 32 is simply not deformed irregularly with the deformation of the connecting portion 84 and the side surface portion 81. Deforms following the shape. Therefore, the sub seal portion 8 regularly repeats the same deformation every time the door is closed.
[0012]
Thus, in the weather strip W 1 , the gap width variation between the outer edge portion 32 of the door opening edge 30 of the vehicle body and the outer peripheral edge 22 of the door frame 2 is different from that of the connecting portion 84 of the sub seal portion 8. Absorbed by deformation of the side surface portion 81. When the sub seal portion 8 is pressed against the outer edge portion 32, the sub seal portion 8 is deformed in a swinging manner toward the inner side of the vehicle, so that it does not jump out of the vehicle regardless of the gap width variation. Further, since the connecting portion 84 and the side surface portion 81 facilitate bending, the door closing force is not increased. Further, the side wall (side portions 81, 82) that blocks between the door opening edge 30 and the door frame 2 is doubled with respect to the lip type sub-seal portion, and the intermediate portion of the side portion 81 faces when the door is closed. Since the head of the sub seal part 8 is close to the closed section in the vicinity of the part 82, the sound insulation from the outside of the vehicle is also improved.
[0013]
The present invention is not limited to a front door, and can be applied to a weather strip that is attached to a door frame of a rear door and press-contacts a door opening edge along a rear roof side including a quarter pillar. The weather strip can be attached to the door frame not only with the double-sided adhesive tape, but also with a retainer provided on the outer peripheral end surface of the door frame, or the outer peripheral end surface itself can be formed into a retainer shape and attached thereto. .
[0014]
【The invention's effect】
By using the door weather strip according to the present invention, the door weather strip does not increase between the door frame and the door opening edge of the vehicle body along the roof side, and the door weather strip is not irregularly deformed. It can be sealed with good appearance and good sealing properties.
[Brief description of the drawings]
FIG. 1 (A) is a sectional view of the door weather strip of the present invention attached at a position along the line AA in FIG. 2, and FIG. 1 (B) is the door weight of the present invention when the door is closed. It is sectional drawing which shows the deformation | transformation state in the same position as the above of the strip.
FIG. 2 is a side view of an automobile to which the door weather strip of the present invention is applied.
FIG. 3 is an overall view of a door weather strip attached around a door.
4 is a cross-sectional view of a conventional door weather strip attached at a position along the line AA in FIG. 2. FIG.
FIG. 5 is a cross-sectional view showing a deformed state of the conventional door weather strip at the same position as above when the door is closed.
[Explanation of symbols]
2 Door frame 3 Roof side 30 Door opening edge 32 Outer edge portion W, W 1 , W 2 Door weather strip 5 Base portion 6 Main seal portion 8 Sub seal portion 81 Side surface portion on the inside of the vehicle 82 Side surface portion on the outside of the vehicle 83 Top surface portion 84 Connection portion

Claims (1)

自動車のドアフレーム（２）に装着されて、ドアフレーム（２）と車体のルーフサイド（３）に沿うドア開口縁（３０）との間をシールするドアウエザストリップであって、ドア閉時にドア開口縁（３０）の側面に圧接する中空状のメインシール部（６）と、ドア開口縁（３０）の外縁部（３２）とドアフレーム（２）の外周縁との間の隙間をシールするサブシール部（８）を備えたドアウエザストリップ（Ｗ １ ）において、上記サブシール部（８）を中空状に形成し、該サブシール部（８）は、車内側の側面部（８１）をその中間部分が中空内方向へ膨出する断面ほぼＳ字形に形成するとともに車外側の側面部（８２）よりも薄肉に形成し、ドア閉時にドア開口縁（３０）の外縁部（３２）に当接する頂面部（８３）を車外側の側面部（８２）よりも薄肉で車内側の側面部（８１）よりも厚肉に形成し、かつ頂面部（８３）と車外側の側面部（８２）との連接部分（８４）を、他の部分よりも薄肉としたことを特徴とする自動車用ドアウエザストリップ。Is attached to the vehicle door frame (2), a door weather strip for sealing between the door opening edge along the vehicle roof side with the door frame (2) (3) (30), when the door is closed hollow main seal portion pressed against the surface of the door opening edge (30) and (6), sealing the gap between the outer periphery of the outer edge portion of the door opening edge (30) (32) and door frame (2) in door weather strip with sub seal (8) to (W 1), the sub seal (8) is formed in a hollow shape, the sub seal (8) is a side section of the interior side (81) thereof The middle part is formed in a substantially S-shaped cross section that bulges in the hollow, and is thinner than the side part (82) on the outside of the vehicle, and hits the outer edge part (32) of the door opening edge (30) when the door is closed. The top surface part (83) in contact with the side surface part ( 2) is formed thicker than the side portion of the vehicle interior side of a thin (81) than, and the side surface portions of the exterior and the top wall (83) to (82) connecting portions of the (84), than the other portions An automotive door weatherstrip that is also thin.
JP20250097A 1997-07-10 1997-07-10 Automotive door weather strip Expired - Fee Related JP3876492B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20250097A JP3876492B2 (en) 1997-07-10 1997-07-10 Automotive door weather strip

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Application Number Priority Date Filing Date Title
JP20250097A JP3876492B2 (en) 1997-07-10 1997-07-10 Automotive door weather strip

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JPH1128936A JPH1128936A (en) 1999-02-02
JP3876492B2 true JP3876492B2 (en) 2007-01-31

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Publication number Priority date Publication date Assignee Title
JP4344809B2 (en) * 2004-09-02 2009-10-14 豊田合成株式会社 Door weather strip
US20080229670A1 (en) 2007-03-15 2008-09-25 Toyoda Gosei Co., Ltd. Weather strip

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JPH1128936A (en) 1999-02-02

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