JP2019171928A

JP2019171928A - Door weather strip

Info

Publication number: JP2019171928A
Application number: JP2018059398A
Authority: JP
Inventors: 祐哉井村; Yuya Imura; 仁志杉山; Hitoshi Sugiyama; 浩志須川; Hiroshi Sugawa
Original assignee: Toyoda Gosei Co Ltd
Current assignee: Toyoda Gosei Co Ltd
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2019-10-10
Anticipated expiration: 2038-03-27
Also published as: JP6928900B2

Abstract

To provide a door weather strip which is excellent in door closing performance corresponding to weight saving of a door.MEANS FOR SOLVING THE PROBLEM: A hollow seal part 12 of a door weather strip 10 has a cross-sectional shape of a substantially parallelogram which is configured from a bottom wall 14, a first peripheral wall 15, a second peripheral wall 16, and a third peripheral wall 17. An angle α between the bottom wall 14 and the first peripheral wall 15 is an obtuse angle. When closing a door 1, the first peripheral wall 15 is moved so that the angle α between the bottom wall 14 and the first peripheral wall 15 becomes small, and the second peripheral wall 16 and the third peripheral wall 17 are interlocked with this, the cross-sectional shape of the hollow seal part 12 is changed from the substantially parallelogram to a substantially rectangular shape, whereby an area of the hollow seal part 12 is increased and an inner pressure thereof is decreased.SELECTED DRAWING: Figure 4

Description

本発明は、ドア閉時に弾接して自動車の車体とドアとの隙間をシールする自動車用のウェザストリップに関し、特に、ドアの外周に取り付けられるドアウェザストリップに関するものである。 The present invention relates to a weather strip for automobiles that elastically contacts when the door is closed and seals the gap between the automobile body and the door, and more particularly to a door weather strip attached to the outer periphery of the door.

図５に示すように、ドアウェザストリップ１０は、基底部１１Ａと、中空シール部１２と、リップ部１３とを備えている。ドアウェザストリップ１０は、自動車のサイドドア（以下、「ドア」という）の外周部全域に沿って延在する環状の長尺体として構成され、ドアが閉じた状態ではドア開口部の内周部とドアの外周部との間に設けられる。なお、リップ部１３は、ルーフ部のみに配設される。ここで、ドアウェザストリップ１０に関し、実線はドアウェザストリップ１０と車体側アウタパネル４との当接前、破線は車体側アウタパネル４との当接後、すなわち、ドア１を閉じたときの形状を示す。 As shown in FIG. 5, the door weather strip 10 includes a base portion 11 A, a hollow seal portion 12, and a lip portion 13. The door weather strip 10 is configured as an annular long body extending along the entire outer peripheral portion of a side door (hereinafter referred to as “door”) of an automobile, and the inner peripheral portion of the door opening when the door is closed. And the outer periphery of the door. Note that the lip portion 13 is disposed only on the roof portion. Here, regarding the door weather strip 10, the solid line indicates the shape before the door weather strip 10 and the vehicle body side outer panel 4 abut, and the broken line indicates the shape after the vehicle body side outer panel 4 abuts, that is, when the door 1 is closed. .

中空シール部１２は、基底部１１Ａの車室内側からドア開口部２１の内周部へ向けて延出されると共に、ドア閉時にドア開口部２１の内周部に接して車室内と車室外との間をシールする構成とされている。
中空シール部１２はドアウェザストリップ１０の長手方向と同一方向を長手方向とする中空状で形成されている。中空シール部１２の断面はリング状である。 The hollow seal portion 12 extends from the vehicle interior side of the base portion 11A toward the inner peripheral portion of the door opening 21 and contacts the inner peripheral portion of the door opening 21 when the door is closed. It is set as the structure which seals between.
The hollow seal portion 12 is formed in a hollow shape whose longitudinal direction is the same as the longitudinal direction of the door weather strip 10. The cross section of the hollow seal portion 12 is ring-shaped.

中空シール部１２の車室内側壁１２Ａにはそれを貫通するエア抜き部１２Ｈが設けられている。エア抜き部１２Ｈは、中空シール部１２の中空内部１２Ｂと車室内とを連通し、ドアウェザストリップ１０が車体側アウタパネル４に当接して弾性変形したときに、中空内部１２Ｂから車室内へ空気を抜く構成とされている。エア抜き部１２Ｈは、例えば直径２ｍｍ〜４ｍｍの貫通穴により形成されており、１個又はドアウェザストリップ１０の長手方向に沿って一定の間隔で複数個配設されている。 The vehicle interior side wall 12A of the hollow seal portion 12 is provided with an air vent portion 12H penetrating therethrough. The air vent portion 12H communicates the hollow interior 12B of the hollow seal portion 12 and the vehicle interior, and when the door weather strip 10 abuts against the vehicle body side outer panel 4 and is elastically deformed, the air is released from the hollow interior 12B into the vehicle interior. It is configured to be pulled out. The air vents 12 H are formed by through holes having a diameter of 2 mm to 4 mm, for example, and one or a plurality of air vents 12 A are arranged at regular intervals along the longitudinal direction of the door weather strip 10.

リップ部１３は、基底部１１Ａの中空シール部１２よりも車室外側からドア開口部２１の内周部へ向けて延出されると共に、中空シール部１２の車室外側壁１２Ｃと対向して配設され、ドア１を閉じた時に車体側アウタパネル４に弾性変形した状態で接する構成とされている。リップ部１３は、ドアウェザストリップ１０の長手方向と同一方向を長手方向とし、中空シール部１２とは異なって中実かつヒレ状で形成されている（特許文献１参照）。 The lip portion 13 extends from the outer side of the vehicle compartment toward the inner peripheral portion of the door opening 21 than the hollow seal portion 12 of the base portion 11A, and is disposed to face the outer wall 12C of the hollow seal portion 12. When the door 1 is closed, it is configured to come into contact with the vehicle body side outer panel 4 in an elastically deformed state. The lip portion 13 has the same direction as the longitudinal direction of the door weather strip 10 as the longitudinal direction, and is formed in a solid and fin shape unlike the hollow seal portion 12 (see Patent Document 1).

特開２０１５-９６３９４号公報JP 2015-96394 A

ところで、燃費向上のために、車両及びドアの軽量化が進められているが、ドアが軽くなると、ドアを閉じるときの惰性（モーメント）が小さくなるため、従来と同じ速度でドアを閉めても、ドアウェザストリップから受ける反発力が大きく、ドアが閉じ切らないという問題が発生した。 By the way, the weight reduction of vehicles and doors has been promoted to improve fuel efficiency. However, when the doors become lighter, the inertia (moment) when closing the doors becomes smaller, so even if the doors are closed at the same speed as before, The repulsive force received from the door weatherstrip caused a problem that the door did not close.

その対策として、ドアウェザストリップの中空シール部の車内側若しくは／及び車外側の側壁の膜厚を薄くすることや、中空シール部の中空内部の断面積を小さくすることが考えられるが、ドアを閉めた時に、中空内部が圧縮され、ドアが閉まる力に反発するので上記問題の解決にならない。 As countermeasures, it is conceivable to reduce the film thickness of the side wall inside or / and outside of the hollow seal portion of the door weather strip, or to reduce the cross-sectional area of the hollow interior of the hollow seal portion. When closed, the hollow interior is compressed and repels the force of closing the door, so the above problem cannot be solved.

また、中空シール部の付け根部分を他の部分よりも肉薄とし、ドアを閉めるときの中空シール部の移動量を大きくすることが考えられるが、この場合は、ドアが閉じ切らないという問題はなくなるが、ドアを閉めた後の中空シール部の車体側アウタパネルに対する反発力が低下する。 In addition, it is conceivable to make the base part of the hollow seal part thinner than the other parts and increase the amount of movement of the hollow seal part when closing the door, but in this case, the problem that the door does not close completely disappears. However, the repulsive force with respect to the vehicle body side outer panel of a hollow seal part after closing a door falls.

一方、エア抜き部の数を増やすことが考えられるが、エア抜き部形成のための余分な加工工数が発生し、それに伴いドアウェザストリップのコストが上昇する。また、見栄えも悪化する。 On the other hand, although it is conceivable to increase the number of air vents, an extra processing man-hour for forming the air vents is generated, and the cost of the door weather strip increases accordingly. In addition, the appearance also deteriorates.

そこで、本発明は、ドアウェザストリップの中空シール部の形状を工夫することにより、軽量化されたドアに対しても、ドアの閉まり性能を向上させることができ、さらに見栄えもよく、且つ余分な加工工数を発生することのないドアウェザストリップを提供することにある。 Therefore, the present invention can improve the closing performance of the door even for a lightened door by devising the shape of the hollow seal portion of the door weather strip, and it can be further improved in appearance and extra. An object of the present invention is to provide a door weather strip that does not generate processing man-hours.

上記課題を解決するために請求項１の本発明は、自動車のドア外周に取り付けられて自動車の車体とドアとの間をシールするドアウェザストリップであって、ドアウェザストリップは、ドアに取り付けられる取付基部と、車体に当接してドアとの間をシールする中空シール部を有し、中空シール部の内部の断面積は、車体との当接時には、車体との非当接時に比較して大きくなるように変形することを特徴とするドアウェザストリップである。 In order to solve the above-mentioned problem, the present invention of claim 1 is a door weather strip that is attached to the outer periphery of a door of an automobile and seals between the body of the automobile and the door, and the door weather strip is attached to the door. It has a hollow seal part that abuts against the mounting base and seals between the door and the door, and the internal cross-sectional area of the hollow seal part is greater when compared with when not in contact with the vehicle. The door weather strip is characterized by being deformed so as to become large.

請求項１の本発明では、中空シール部の中空内部の断面積は、車体との当接時には、車体との非当接時に比較して増加するように変形するので、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 In the present invention of claim 1, the cross-sectional area of the hollow interior of the hollow seal portion is deformed so as to increase when contacting with the vehicle body as compared with when not contacting with the vehicle body. It reduces, the repulsive force of the door weather strip with respect to a vehicle body is reduced, and a door can be closed reliably.

請求項２の本発明は、中空シール部は、底壁と、車内側に位置する第１周壁と、車外側に位置する第２周壁とを備える略三角形若しく略扇形状の断面形状を有し、底壁と第１周壁のなす角度は鈍角であり、第２周壁は底壁に対して凸状に湾曲しているドアウェザストリップである。ここで、「凸状に湾曲している」とは、底壁から見た時に、第２周壁が盛り上がるように弓形に曲がっていることをいい、第２周壁が全体的に盛り上がるように弓形に曲がっている場合、第２周壁内に弓形に盛り上がるように曲がっている部分を有している場合を含む。また、底壁は取付基部の一部であってもよく、取付基部とは別に形成してもよい。 According to a second aspect of the present invention, the hollow seal portion has a substantially triangular or substantially fan-shaped cross-sectional shape including a bottom wall, a first peripheral wall located inside the vehicle, and a second peripheral wall located outside the vehicle. The angle between the bottom wall and the first peripheral wall is an obtuse angle, and the second peripheral wall is a door weather strip that is convexly curved with respect to the bottom wall. Here, “convexly curved” means that when viewed from the bottom wall, it is bent in an arc shape so that the second peripheral wall rises, and the second peripheral wall is bent in an arc shape so that it rises as a whole. The case where it is bent includes the case where the second peripheral wall has a portion bent so as to rise in an arc shape. Further, the bottom wall may be a part of the mounting base and may be formed separately from the mounting base.

請求項２の本発明では、上記の構造を有することにより、ドアウェザストリップと車体との当接時には、第１周壁が立ち上がり、すなわち、底壁と第１周壁のなす角度が小さくなり、底壁を基準にして、第１周壁の高さが高くなる、且つそれに伴い第２周壁は凸状の湾曲の度合いが大きくなるように変形する。
その結果、中空シール部の中空内部の断面積が車体との非当接時に比較して増加するので、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 In the present invention of claim 2, by having the above-described structure, when the door weather strip and the vehicle body come into contact with each other, the first peripheral wall rises, that is, the angle formed between the bottom wall and the first peripheral wall becomes small. As a reference, the height of the first peripheral wall is increased, and the second peripheral wall is deformed so as to increase the degree of convex curvature.
As a result, since the cross-sectional area of the hollow interior of the hollow seal portion increases as compared to when it is not in contact with the vehicle body, the internal pressure of the hollow seal portion is reduced, the repulsive force of the door weather strip against the vehicle body is reduced, and the door is It can be closed securely.

請求項３の本発明は、中空シール部の第２周壁の内面には、肉薄部を有するドアウェザストリップである。請求項３の本発明では、ドアウェザストリップの中空シール部の第２周壁の内面には、肉薄部を有しているので、ドアウェザストリップと車体との当接時には、第１周壁の立ち上がりに伴い、第２周壁では肉薄部を中心に凸状の湾曲の度合いが大きくなる、すなわち、第２周壁が肉薄部を中心に中空シール部外側に変形する。その結果、中空シール部の断面積が増加し、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 The present invention of claim 3 is a door weather strip having a thin portion on the inner surface of the second peripheral wall of the hollow seal portion. In the third aspect of the present invention, since the inner surface of the second peripheral wall of the hollow seal portion of the door weather strip has a thin portion, when the door weather strip and the vehicle body come into contact with each other, the first peripheral wall rises. Accordingly, the degree of convex curvature is increased around the thin portion in the second peripheral wall, that is, the second peripheral wall is deformed outward from the hollow seal portion around the thin portion. As a result, the cross-sectional area of the hollow seal portion increases, the internal pressure of the hollow seal portion decreases, the repulsive force of the door weather strip against the vehicle body is reduced, and the door can be closed reliably.

また、ドアウェザストリップと車体との当接時には、第２周壁において、常に肉薄部を中心に凸状の湾曲の度合いが大きくなるので、ドアの閉め方の相違や温度、湿度等の環境変化、さらにはドアウェザストリップの経年時においても、ドアウェザストリップと車体との当接時及び当接後のドアウェザストリップの反発力を一定に維持することができる。 In addition, when the door weatherstrip and the vehicle body come into contact with each other, the degree of convex curvature around the thin wall always increases in the second peripheral wall, so the difference in how the door is closed and environmental changes such as temperature and humidity, Furthermore, even when the door weather strip is aged, the repulsive force of the door weather strip can be maintained constant when the door weather strip is in contact with the vehicle body and after the contact.

なお、中空シール部が略三角形若しく略扇形状の断面形状の場合に、第１周壁が大きく立ち上がった場合には、肉薄部を中心にした中空シール部外側に大きく変形し、肉薄部において屈曲し、略三角形若しく略扇形状が略四角形に変形する場合があるが、中空シール部の断面積は増加するので、同様な効果を奏することに変わりはない。 In addition, when the hollow seal portion has a substantially triangular or substantially fan-shaped cross-section, if the first peripheral wall rises greatly, the hollow seal portion largely deforms to the outside of the hollow seal portion centering on the thin portion, and bends at the thin portion. In some cases, the substantially triangular shape or the substantially fan shape may be deformed into a substantially square shape. However, since the cross-sectional area of the hollow seal portion is increased, the same effect can be obtained.

請求項４の本発明は、中空シール部の第２周壁の内面には、ノッチを有するドアウェザストリップである。ここで、「ノッチ」とは、Ｖ字形、Ｕ字形等の切込みや溝のことをいう。請求項４の本発明では、ドアウェザストリップの中空シール部の第２周壁の内面には、ノッチを有しているので、ドアウェザストリップと車体との当接時には、第１周壁が立ち上がり、第２周壁はノッチを中心に中空シール部外側に屈曲し、中空シール部が、略三角形若しく略扇形状から略四角形に変形する。その結果、中空シール部の断面積が増加し、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 The present invention of claim 4 is a door weather strip having a notch on the inner surface of the second peripheral wall of the hollow seal portion. Here, the “notch” refers to a V-shaped or U-shaped cut or groove. In the present invention of claim 4, since the inner surface of the second peripheral wall of the hollow seal portion of the door weather strip has a notch, the first peripheral wall rises when the door weather strip and the vehicle body come into contact with each other. The two peripheral walls are bent outward from the hollow seal portion around the notch, and the hollow seal portion is deformed from a substantially triangular shape or a substantially fan shape to a substantially rectangular shape. As a result, the cross-sectional area of the hollow seal portion increases, the internal pressure of the hollow seal portion decreases, the repulsive force of the door weather strip against the vehicle body is reduced, and the door can be closed reliably.

また、ドアウェザストリップと車体との当接時には、第２周壁において、常にノッチを中心に屈曲するので、ドアの閉め方の相違や温度、湿度等の環境変化、さらにはドアウェザストリップの経年時においても、ドアウェザストリップと車体との当接時及び当接後の車体に対するドアウェザストリップの反発力を一定に維持することができる。 Also, when the door weather strip and the vehicle body come into contact with each other, the second peripheral wall always bends around the notch, so the difference in door closing, environmental changes such as temperature and humidity, and the age of the door weather strip In this case, the repulsive force of the door weather strip with respect to the vehicle body after and after the contact between the door weather strip and the vehicle body can be maintained constant.

請求項５の本発明は、中空シール部は、底壁と、車内側に位置する第１周壁と、第1周壁と連結し、車外側に位置する第２周壁と、第２周壁と連結し、第２周壁の車外側に位置する第３周壁を備える略四角形の断面形状を有し、底壁と第１周壁のなす角度は鈍角であるドアウェザストリップである。 According to a fifth aspect of the present invention, the hollow seal portion is connected to the bottom wall, the first peripheral wall located on the vehicle inner side, the first peripheral wall, the second peripheral wall located on the vehicle outer side, and the second peripheral wall. The door weather strip has a substantially rectangular cross-sectional shape including a third peripheral wall located on the vehicle outer side of the second peripheral wall, and an angle between the bottom wall and the first peripheral wall is an obtuse angle.

請求項５の本発明では、ドアウェザストリップの中空シール部は、底壁と、車内側に位置する第１周壁と、第1周壁と連結し、車外側に位置する第２周壁と、第２周壁と連結し、第２周壁の車外側に位置する第３周壁を備える略四角形の断面形状を有し、底壁と第１周壁のなす角度は鈍角であるので、ドアウェザストリップと車体との当接時には、第１周壁が立ち上がることにより中空シール部の断面積が増加し、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 In the fifth aspect of the present invention, the hollow seal portion of the door weather strip includes the bottom wall, the first peripheral wall located on the inner side of the vehicle, the second peripheral wall located on the outer side of the vehicle connected to the first peripheral wall, and the second wall. It has a substantially rectangular cross-sectional shape that is connected to the peripheral wall and has a third peripheral wall located outside the second peripheral wall, and the angle formed between the bottom wall and the first peripheral wall is an obtuse angle. At the time of contact, the first peripheral wall rises, so that the cross-sectional area of the hollow seal portion increases, the internal pressure of the hollow seal portion decreases, the repulsive force of the door weather strip against the vehicle body is reduced, and the door can be closed reliably. .

請求項６の本発明は、中空シール部は、略平行四辺形の断面形状を有するドアウェザストリップである。請求項６の本発明では、ドアウェザストリップの中空シール部は、略平行四辺形の断面形状を有しているので、ドアウェザストリップと車体との当接時には、中空シール部は第１周壁が立ち上がると共に、略平行四辺形が略長方形に変形する方向に第２周壁と第３周壁が動く。 According to a sixth aspect of the present invention, the hollow seal portion is a door weather strip having a substantially parallelogram cross-sectional shape. In the present invention of claim 6, since the hollow seal portion of the door weather strip has a substantially parallelogram-shaped cross-sectional shape, when the door weather strip is brought into contact with the vehicle body, the hollow seal portion has the first peripheral wall. While standing up, the second peripheral wall and the third peripheral wall move in a direction in which the substantially parallelogram is deformed into a substantially rectangular shape.

その結果、中空シール部を形成する各壁の伸縮を抑えながら中空シール部を変形させることができ、各壁への負荷が最も少ない形で中空シール部の断面積を増加することができるので、中空シール部の内圧の減少により、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。また、中空シール部の耐久性も向上する。 As a result, the hollow seal portion can be deformed while suppressing expansion and contraction of each wall forming the hollow seal portion, and the cross-sectional area of the hollow seal portion can be increased in a form with the least load on each wall. By reducing the internal pressure of the hollow seal portion, the repulsive force of the door weather strip with respect to the vehicle body is reduced, and the door can be reliably closed. Further, the durability of the hollow seal portion is also improved.

なお、底壁と第２周壁、第１周壁と第３周壁が同じ長さの場合は、ひし形になるが、ひし形は当然に平行四辺形に含まれる。また、上記の略長方形には略正方形が含まれる。 In addition, when the bottom wall and the second peripheral wall, and the first peripheral wall and the third peripheral wall have the same length, a rhombus is formed, but the rhombus is naturally included in the parallelogram. Further, the substantially rectangular shape includes a substantially square shape.

請求項７の本発明は、中空シール部の第１周壁は、底壁に対して凹状に湾曲しているドアウェザストリップである。ここで、「凹状に湾曲している」とは、底壁から見た時に、第１周壁が底壁側にへこむように弓形に曲がっていることをいい、第１周壁が全体的に底壁側にへこむように弓形に曲がっている場合、第１周壁内に底壁側にへこむように弓形に曲がっている部分を有している場合を含む。 The present invention of claim 7 is the door weather strip in which the first peripheral wall of the hollow seal portion is curved concavely with respect to the bottom wall. Here, “curved in a concave shape” means that when viewed from the bottom wall, the first peripheral wall is bent in an arch shape so as to be recessed toward the bottom wall, and the first peripheral wall is the bottom wall as a whole. The case where it is bent in an arcuate shape so as to bend toward the side includes the case where the first peripheral wall has a portion bent in an arcuate shape so as to be recessed toward the bottom wall side.

また、中空シール部の第１周壁が底壁に対して凹状に湾曲している場合の、底壁と第１周壁とのなす角度とは、第１周壁と底壁との連結部と、第１周壁と第２周壁との連結部を結んだ直線と底壁とのなす角度をいう。 In addition, the angle formed between the bottom wall and the first peripheral wall when the first peripheral wall of the hollow seal portion is concavely curved with respect to the bottom wall is the connection between the first peripheral wall and the bottom wall, An angle formed by a straight line connecting the connecting portion between the first peripheral wall and the second peripheral wall and the bottom wall.

請求項７の本発明では、中空シール部の第１周壁は、底壁に対して凹状に湾曲しているので、第１周壁が立ち上がる際に、凹状の湾曲の度合いが減少する方向に変形しても、底壁を基準にして第１周壁の高さは確実に高くなる方向に動く。 In the present invention of claim 7, since the first peripheral wall of the hollow seal portion is concavely curved with respect to the bottom wall, the first peripheral wall is deformed in a direction in which the degree of concave curvature decreases when the first peripheral wall rises. However, the height of the first peripheral wall moves in a surely increasing direction with reference to the bottom wall.

その結果、中空シール部の断面積が増加し、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 As a result, the cross-sectional area of the hollow seal portion increases, the internal pressure of the hollow seal portion decreases, the repulsive force of the door weather strip against the vehicle body is reduced, and the door can be closed reliably.

請求項８の本発明は、中空シール部の第１周壁は、中空シール部を形成する他の周壁に比較して厚く形成されているドアウェザストリップである。請求項８の本発明では、第１周壁は、中空シール部を形成する他の周壁に比較して厚く形成されているので、中空シール部と車体が当接するときに、第１周壁は撓みの程度が非常に小さく立ち上がり、底壁を基準にして第１周壁の高さは確実に高くなる。その結果、中空シール部の断面積を確実に増加させることができ、中空シール部の内圧が減少し、車体に対するドアウェザストリップの反発力が低減され、ドアを確実に閉めることができる。 The present invention of claim 8 is a door weather strip in which the first peripheral wall of the hollow seal portion is formed thicker than other peripheral walls forming the hollow seal portion. In the present invention of claim 8, since the first peripheral wall is formed thicker than the other peripheral walls forming the hollow seal portion, the first peripheral wall is bent when the hollow seal portion and the vehicle body come into contact with each other. The degree rises very small, and the height of the first peripheral wall is reliably increased with reference to the bottom wall. As a result, the cross-sectional area of the hollow seal portion can be reliably increased, the internal pressure of the hollow seal portion is reduced, the repulsive force of the door weather strip against the vehicle body is reduced, and the door can be closed reliably.

請求項９の本発明は、中空シール部の第１周壁と第２周壁の頂点部分には、車内側に突出する突起部を形成したドアウェザストリップである。請求項９の本発明では、第１周壁と第２周壁の頂点部分には、車内側に突出する突起部が形成されているので、中空シール部と車体が当接するときには、当接部が厚くなる。 According to a ninth aspect of the present invention, there is provided a door weather strip in which protrusions projecting toward the vehicle interior are formed at the apex portions of the first peripheral wall and the second peripheral wall of the hollow seal portion. According to the ninth aspect of the present invention, since the protrusions projecting toward the vehicle interior are formed at the apex portions of the first peripheral wall and the second peripheral wall, the contact portion is thick when the hollow seal portion and the vehicle body contact each other. Become.

その結果、局所的な圧縮変形を抑制し、中空シール部の車体との接触面積を小さく保つことができ、中空シール部の面圧を高く保つことができるため、確実に車室内と車室外をシールすることができる。 As a result, local compressive deformation can be suppressed, the contact area of the hollow seal portion with the vehicle body can be kept small, and the surface pressure of the hollow seal portion can be kept high. Can be sealed.

ドア閉まりにより中空シール部の断面積が増加するため、中空シール部の内圧が減少し、ドア閉まりに対する車体への中空シール部の反発力が低減されるので、軽量化されたドアに対しても、確実にドアを閉めることができ、ドア閉まり性能が向上する。 Since the cross-sectional area of the hollow seal portion increases due to the door closing, the internal pressure of the hollow seal portion decreases, and the repulsive force of the hollow seal portion to the vehicle body against the door closing is reduced, so even for lighter doors The door can be closed reliably, and the door closing performance is improved.

また、エア抜きの穴の必要もないので見栄えがよい。さらに、エア抜きの穴加工など余分な加工工数が不要になり、ドアウェザストリップのコストダウンにも貢献する。 Also, there is no need for air vent holes, so it looks good. In addition, it eliminates the need for extra processing steps such as drilling holes in the air, contributing to the cost reduction of door weather strips.

さらに、中空シール部の第１周壁と第２周壁の頂点部分には、車内側に突出する突起部を形成し、中空シール部の車体との当接部を厚くすることで、局所的な圧縮変形を抑制することができるので、中空シール部の面圧を高く保つことができるため、確実に車室内と車室外をシールすることができる。 Furthermore, a protrusion projecting toward the vehicle interior is formed at the apex of the first peripheral wall and the second peripheral wall of the hollow seal portion, and the contact portion of the hollow seal portion with the vehicle body is thickened, thereby locally compressing. Since deformation can be suppressed, the surface pressure of the hollow seal portion can be kept high, so that the vehicle interior and the vehicle exterior can be reliably sealed.

本発明の第１の実施形態に係るドアウェザストリップが適用される車両の側面図である。1 is a side view of a vehicle to which a door weather strip according to a first embodiment of the present invention is applied. 車両のドア閉時における図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 1 at the time of the door closing of a vehicle. 本発明の第２の実施形態に係る車両のドア閉時における図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 1 at the time of the door closing of the vehicle which concerns on the 2nd Embodiment of this invention. 本発明の第３の実施形態に係る車両のドア閉時における図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 1 at the time of the door closing of the vehicle which concerns on the 3rd Embodiment of this invention. 従来のドアウェザストリップと自動車のドア及び車体との関係を示す断面図である。It is sectional drawing which shows the relationship between the conventional door weather strip, the door of a motor vehicle, and a vehicle body.

図１と図２を用いて、本発明の第１の実施形態に係るドアウェザストリップ１０について説明する。なお、従来例で示したものと同一部分には同一符号を付した。
（車両の概略構成）
図１で示される自動車は、４ドアタイプである。なお、このタイプに限定されるものではない。また、本実施形態は、自動車の左側前部ドアへの適用例であるが、他のドアであってもよい。 A door weather strip 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In addition, the same code | symbol was attached | subjected to the same part as what was shown in the prior art example.
(Schematic configuration of the vehicle)
The automobile shown in FIG. 1 is a four-door type. It is not limited to this type. Moreover, although this embodiment is an example applied to the left front door of an automobile, other doors may be used.

自動車のドア１と車体開口部周縁との間のシールは、ドアフレーム２等の外周部全域に沿って設けられる環状の長尺体であるドアウェザストリップ１０及び／又は、車体開口部周縁のフランジに取付けられる図示しないオープニングトリムウェザストリップによりなされる。なお、ドアガラス３とドア１との間のシールは、ドアフレーム２の内周のチャンネルに取付けられる図示しないガラスランによってなされる。 The seal between the door 1 of the automobile and the periphery of the opening of the vehicle body is a door weather strip 10 and / or a flange at the periphery of the opening of the vehicle body, which is an annular long body provided along the entire outer periphery of the door frame 2 and the like. It is made by an opening trim weatherstrip (not shown) attached to the frame. The seal between the door glass 3 and the door 1 is made by a glass run (not shown) attached to the inner peripheral channel of the door frame 2.

（ドアウェザストリップ１０とドア１及び車体側アウタパネル４）
図２に示すように、ドアウェザストリップ１０は、取付基部１１Ｂ、中空シール部１２、リップ部１３から構成されている。中空シール部１２は、底壁１４、車内側に位置する第１周壁１５と車外側に位置する第２周壁１６から構成されている。なお、ドアウェザストリップ１０に関し、実線は車体側アウタパネル４との当接前、破線は車体側アウタパネル４との当接後、すなわち、ドア１が閉じたときの形状を示す。 (Door weather strip 10, door 1 and vehicle body side outer panel 4)
As shown in FIG. 2, the door weather strip 10 includes an attachment base portion 11 B, a hollow seal portion 12, and a lip portion 13. The hollow seal portion 12 includes a bottom wall 14, a first peripheral wall 15 located on the vehicle inner side, and a second peripheral wall 16 located on the vehicle outer side. Regarding the door weather strip 10, the solid line indicates the shape before contact with the vehicle body side outer panel 4, and the broken line indicates the shape after contact with the vehicle body side outer panel 4, that is, when the door 1 is closed.

取付基部１１Ｂには、２か所の中空部１１０Ａと中空部１１０Ｂが設けられ、中空部１１０Ａには、孔部１１Ｃが設けられている。また、取付基部１１Ｂの中空シール部１２との反対側の面には、３か所の突状部１９が設けられている。ドアウェザストリップ１０は、クリップ２０によりドアフレーム２のドア側インナパネル２Ｂに固定される。このとき、取付基部１１Ｂの３か所の突状部１９がドア側インナパネル２Ｂに当接する。中空部１１０Ｂは軽量化のために設けられている。 The mounting base portion 11B is provided with two hollow portions 110A and 110B, and the hollow portion 110A is provided with a hole portion 11C. Further, three protruding portions 19 are provided on the surface of the mounting base 11B opposite to the hollow seal portion 12. The door weather strip 10 is fixed to the door side inner panel 2 B of the door frame 2 by a clip 20. At this time, the three protruding portions 19 of the attachment base portion 11B come into contact with the door-side inner panel 2B. The hollow part 110B is provided for weight reduction.

中空シール部１２は、底壁１４、車内側に位置する第１周壁１５と車外側に位置する第２周壁１６から構成され、第２周壁１６は底壁１４に対して凸状に湾曲しており、中空シール部１２は、略扇形の断面形状になっている。なお、第２周壁１６の凸状の湾曲の度合いが小さい場合は、中空シール部１２は、略三角形の断面形状になる。中空シール部１２はドアウェザストリップ１０の長手方向と同一方向を長手方向とする中空状で形成されている。 The hollow seal portion 12 includes a bottom wall 14, a first peripheral wall 15 located on the inner side of the vehicle, and a second peripheral wall 16 located on the outer side of the vehicle. The second peripheral wall 16 is curved in a convex shape with respect to the bottom wall 14. The hollow seal portion 12 has a substantially fan-shaped cross section. When the degree of convex curvature of the second peripheral wall 16 is small, the hollow seal portion 12 has a substantially triangular cross-sectional shape. The hollow seal portion 12 is formed in a hollow shape whose longitudinal direction is the same as the longitudinal direction of the door weather strip 10.

第２周壁１６は、その内面に肉薄部１６Ａを有している。底壁１４と第１周壁１５のなす角度αは鈍角である。なお、第２周壁１６の肉薄部１６Ａを除き、第１周壁１５と第２周壁１６は同じ肉厚である。 The second peripheral wall 16 has a thin portion 16A on its inner surface. The angle α formed by the bottom wall 14 and the first peripheral wall 15 is an obtuse angle. Except for the thin part 16A of the second peripheral wall 16, the first peripheral wall 15 and the second peripheral wall 16 have the same thickness.

リップ部１３は、車体側アウタパネル４に当接するリップ１３Ａ、ドアフレーム２のドア側アウタパネル２Ａに当接するリップ１３Ｂとドアフレーム２のドア側インナパネル２Ｂに当接するリップ１３Ｃから構成される。リップ部１３は、ドアウェザストリップ１０の長手方向と同一方向を長手方向とし、中空シール部１２とは異なって中実かつヒレ状で形成されている。 The lip portion 13 includes a lip 13A that contacts the vehicle body side outer panel 4, a lip 13B that contacts the door side outer panel 2A of the door frame 2, and a lip 13C that contacts the door side inner panel 2B of the door frame 2. The lip portion 13 has a longitudinal direction that is the same as the longitudinal direction of the door weather strip 10, and is formed in a solid and fin shape unlike the hollow seal portion 12.

本実施形態において、ドアウェザストリップ１０はＥＰＤＭのソリッド材を用い、中空シール部１２の第１周壁１５と第２周壁１６はＥＰＤＭのスポンジ材を用いた。なお、第１周壁１５と第２周壁１６もソリッド材を用い、第１周壁１５と第２周壁１６の車体側アウタパネル４側のみにＥＰＤＭのスポンジ材を用いてもよい。また、他のゴム部材でもよく、熱可塑性樹脂を用いてもよい。 In the present embodiment, the door weather strip 10 uses an EPDM solid material, and the first peripheral wall 15 and the second peripheral wall 16 of the hollow seal portion 12 use an EPDM sponge material. The first peripheral wall 15 and the second peripheral wall 16 may be made of a solid material, and an EPDM sponge material may be used only on the vehicle body side outer panel 4 side of the first peripheral wall 15 and the second peripheral wall 16. Moreover, another rubber member may be used and a thermoplastic resin may be used.

図２から明らかなように、ドア１を閉める場合、ドアウェザストリップ１０は実線から破線へと断面形状が変化する。このとき、中空シール部１２においては、第１周壁１５の頂部近辺が車体側アウタパネル４に当接すると、第１周壁１５が立ち上がる、すなわち、底壁１４と第１周壁１５のなす角度αが小さくなるように第１周壁１５が動く。つまり、底壁１４を基準にすれば、第１周壁１５の高さが高くなる。また、それに連動して、第２周壁１６において、肉薄部１６Ａを中心に凸状の湾曲の度合いが大きくなるように、断面形状が略四角形に変形する。 As is apparent from FIG. 2, when the door 1 is closed, the cross-sectional shape of the door weather strip 10 changes from a solid line to a broken line. At this time, in the hollow seal portion 12, when the vicinity of the top portion of the first peripheral wall 15 contacts the vehicle body outer panel 4, the first peripheral wall 15 rises, that is, the angle α formed between the bottom wall 14 and the first peripheral wall 15 is small. The 1st surrounding wall 15 moves so that it may become. That is, if the bottom wall 14 is used as a reference, the height of the first peripheral wall 15 is increased. In conjunction with this, the cross-sectional shape of the second peripheral wall 16 is deformed into a substantially quadrangular shape so that the degree of convex curvature around the thin portion 16A is increased.

その結果、中空シール部１２の中空内部１２Ｂの断面積は、車体側アウタパネル４との非当接時に比較して増加するので、中空内部１２Ｂの内圧が車体側アウタパネル４との非当接時に比較して減少する。したがって、車体側アウタパネル４に対するドアウェザストリップ１０の反発力が低減され、ドア１が軽量化された場合であっても、ドア１を確実に閉めることができる。 As a result, the cross-sectional area of the hollow interior 12B of the hollow seal portion 12 increases as compared with when the vehicle body-side outer panel 4 is not in contact, so that the internal pressure of the hollow interior 12B is compared with when the vehicle body-side outer panel 4 is not in contact. Then decrease. Therefore, even if the repulsive force of the door weather strip 10 with respect to the vehicle body side outer panel 4 is reduced and the door 1 is reduced in weight, the door 1 can be closed reliably.

また、エア抜きの穴の必要もないので見栄えがよい。さらに、エア抜きの穴加工など余分な加工工数が不要になり、ドアウェザストリップ１０のコストダウンにも貢献する。 Also, there is no need for air vent holes, so it looks good. In addition, extra processing steps such as air venting are not required, which contributes to cost reduction of the door weather strip 10.

図３は、本発明の第２の実施形態に係るドアウェザストリップ１０である。第１の実施形態との相違点は、第１に、第１周壁１５に関し、第１の実施形態では直線状であったものが、本第２の実施形態では、凹状に湾曲していることである。第２に、第２周壁１６に関し、第１の実施形態ではその内面に肉薄部１６Ａを有していたが、本第２の実施形態では、肉厚はほぼ均一であり、その内面に断面Ｖ字状のノッチ１６Ｂを有していることである。なお、第１周壁１５と第２周壁１６は同じ肉厚である。 FIG. 3 shows a door weather strip 10 according to a second embodiment of the present invention. The difference from the first embodiment is that the first peripheral wall 15 is linear in the first embodiment, but is concavely curved in the second embodiment. It is. Second, regarding the second peripheral wall 16, the first embodiment has the thin portion 16A on the inner surface, but in the second embodiment, the wall thickness is substantially uniform, and the inner surface has a cross-section V on the inner surface. It has a letter-like notch 16B. The first peripheral wall 15 and the second peripheral wall 16 have the same thickness.

図３から明らかなように、ドア１を閉める場合、ドアウェザストリップ１０は実線から破線へと断面形状が変化する。このとき、中空シール部１２においては、第１周壁１５の頂部近辺が車体側アウタパネル４に当接すると、第１周壁１５は、立ち上がる、すなわち、底壁１４と第１周壁１５のなす角度αが小さくなるように動く。また、第１周壁１５の凹状の湾曲の度合いが減少する方向にも変形する。つまり、底壁１４を基準にすれば、第１周壁１５の高さが高くなる。 As is apparent from FIG. 3, when the door 1 is closed, the cross section of the door weather strip 10 changes from a solid line to a broken line. At this time, in the hollow seal portion 12, when the vicinity of the top portion of the first peripheral wall 15 comes into contact with the vehicle body side outer panel 4, the first peripheral wall 15 rises, that is, the angle α formed between the bottom wall 14 and the first peripheral wall 15. Move to get smaller. Moreover, it deform | transforms also in the direction where the degree of the concave curve of the 1st surrounding wall 15 reduces. That is, if the bottom wall 14 is used as a reference, the height of the first peripheral wall 15 is increased.

一方、第１周壁１５の動きに連動して、第２周壁１６においても、ノッチ１６Ｂを中心に中空シール部１２外側に屈曲し、中空シール部１２が、略三角形若しく略扇形から略四角形に変形する。 On the other hand, in conjunction with the movement of the first peripheral wall 15, the second peripheral wall 16 also bends outward from the hollow seal portion 12 around the notch 16 B, and the hollow seal portion 12 changes from a substantially triangular shape or a substantially sector shape to a substantially square shape. Deform.

なお、断面Ｖ字状のノッチ１６ＢのＶ字の開きの程度は、ドア１が完全に閉じたときに、Ｖ字がちょうど閉じる若しくは依然として若干の空間を有していることがよい。ノッチ１６ＢのＶ字の開きが少ない場合は、ドア１が完全に閉じたときに、ノッチ１６Ｂ部分に過大な負荷がかかるからである。また、これは、ノッチがＶ字状以外の形状の場合も同様である。 The degree of opening of the V-shape of the notch 16B having a V-shaped cross section may be such that when the door 1 is completely closed, the V-shape is just closed or still has some space. This is because when the V-shaped opening of the notch 16B is small, an excessive load is applied to the notch 16B when the door 1 is completely closed. The same applies to the case where the notch has a shape other than the V shape.

図４は、本発明の第３の実施形態に係るドアウェザストリップ１０である。第３の実施形態では、中空シール部１２は、底壁１４、車内側に位置する第１周壁１５、第1周壁と連結し、車外側に位置する第２周壁１６と第２周壁と連結し、第２周壁の車外側に位置する第３周壁１７で構成されている。第１周壁１５、第２周壁１６と第３周壁１７は直線形状であり、断面形状は略平行四辺形になっている。 FIG. 4 shows a door weather strip 10 according to a third embodiment of the present invention. In the third embodiment, the hollow seal portion 12 is connected to the bottom wall 14, the first peripheral wall 15 located on the inner side of the vehicle, and the first peripheral wall, and is connected to the second peripheral wall 16 and the second peripheral wall located on the outer side of the vehicle. The third peripheral wall 17 is located outside the second peripheral wall. The 1st surrounding wall 15, the 2nd surrounding wall 16, and the 3rd surrounding wall 17 are linear shapes, and cross-sectional shape is a substantially parallelogram.

そして、第１周壁１５は、第２周壁１６と第３周壁１７に比較して肉厚になっている。なお、第１周壁１５の肉厚は、底壁１４との連結部分から第２周壁１６との連結部分に至る壁内において均一である。また、第２周壁１６と第３周壁１７の肉厚は同じであり、且つ壁内の肉厚は均一である。 The first peripheral wall 15 is thicker than the second peripheral wall 16 and the third peripheral wall 17. The wall thickness of the first peripheral wall 15 is uniform in the wall from the connecting portion with the bottom wall 14 to the connecting portion with the second peripheral wall 16. Moreover, the thickness of the 2nd surrounding wall 16 and the 3rd surrounding wall 17 is the same, and the thickness in a wall is uniform.

さらに、中空シール部１２の第１周壁１５と第２周壁１６の連結部分の頂点部分には、車内側に突出する突起部１８が形成されている。なお、リップ部１３については、第１の実施形態と同じである。 Furthermore, a projection 18 that protrudes toward the inside of the vehicle is formed at the apex of the connecting portion between the first peripheral wall 15 and the second peripheral wall 16 of the hollow seal portion 12. The lip portion 13 is the same as that in the first embodiment.

図４から明らかなように、ドア１を閉める場合、ドアウェザストリップ１０は実線から破線へと断面形状が変化する。このとき、中空シール部１２においては、第１周壁１５と第２周壁１６の頂点部分に形成された突起部１８が車体側アウタパネル４に当接し、第１周壁１５が立ち上がる、すなわち、底壁１４と第１周壁１５のなす角度αが小さくなるように第１周壁１５が動く。なお、第１周壁１５は他の周壁に比較して肉厚になっているので、撓む程度は非常に小さい。 As is clear from FIG. 4, when the door 1 is closed, the sectional shape of the door weather strip 10 changes from a solid line to a broken line. At this time, in the hollow seal portion 12, the projections 18 formed at the apexes of the first peripheral wall 15 and the second peripheral wall 16 abut against the vehicle body side outer panel 4, and the first peripheral wall 15 rises, that is, the bottom wall 14 The first peripheral wall 15 moves so that the angle α formed by the first peripheral wall 15 becomes smaller. In addition, since the 1st surrounding wall 15 is thick compared with another surrounding wall, the extent to which it bends is very small.

このとき、突起部１８により中空シール部１２の車体側アウタパネル４との当接部が厚くなるので、局所的な圧縮変形を抑制することができ、中空シール部１２の面圧を高く保つことができるため、確実に車室内と車室外をシールすることができる。 At this time, since the protrusion 18 thickens the contact portion of the hollow seal portion 12 with the vehicle body side outer panel 4, local compressive deformation can be suppressed, and the surface pressure of the hollow seal portion 12 can be kept high. Therefore, the interior of the vehicle interior and the exterior of the vehicle interior can be reliably sealed.

また、第１周壁１５の動きに連動し、第２周壁１６と第３周壁１７も動くが、中空シール部１２は略平行四辺形をしているので、中空シール部１２は略長方形に向けて変形する。その際、中空シール部１２を形成する各壁の伸縮を抑えながら中空シール部１２を変形させることができるので、各壁への負荷が最も少ない形で中空シール部１２を変形させることができ、中空シール部１２の耐久性向上にもつながる。 The second peripheral wall 16 and the third peripheral wall 17 also move in conjunction with the movement of the first peripheral wall 15, but the hollow seal portion 12 has a substantially parallelogram shape. Deform. At that time, since the hollow seal portion 12 can be deformed while suppressing expansion and contraction of each wall forming the hollow seal portion 12, the hollow seal portion 12 can be deformed in a form with the least load on each wall, It leads also to the durability improvement of the hollow seal part 12. FIG.

その結果、中空シール部１２の中空内部１２Ｂの断面積は、車体側アウタパネル４との非当接時に比較して増加するので、中空シール部１２の中空内部１２Ｂの内圧が車体側アウタパネル４との非当接時に比較して減少する。したがって、車体側アウタパネル４に対するドアウェザストリップ１０の反発力が低減され、ドア１が軽量化された場合であっても、ドア１を確実に閉めることができる。 As a result, the cross-sectional area of the hollow interior 12B of the hollow seal portion 12 increases as compared to when the hollow interior 12B is not in contact with the vehicle body side outer panel 4, so that the internal pressure of the hollow interior 12B of the hollow seal portion 12 Reduced compared to non-contact. Therefore, even if the repulsive force of the door weather strip 10 with respect to the vehicle body side outer panel 4 is reduced and the door 1 is reduced in weight, the door 1 can be closed reliably.

本発明の実施にあたっては、上記実施形態に限定されるものではなく、本発明の目的を逸脱しない限りにおいて種々の変更が可能である。 In carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

例えば、上記実施形態では、取付基部１１Ｂと中空シール部１２の底壁１４が分離され、取付基部１１Ｂに中空部１１０Ａと中空部１１０Ｂを設けたが、中空部１１０Ａと中空部１１０Ｂを省き、取付基部１１Ｂと中空シール部１２の底壁１４を一体化してもよい。この場合は、中空シール部１２の底壁１４に孔部１１Ｃを設け、中空内部１２Ｂからクリップ２０によりドアフレーム２のドア側インナパネル２Ｂに固定されることになる。 For example, in the above embodiment, the mounting base 11B and the bottom wall 14 of the hollow seal portion 12 are separated, and the mounting base 11B is provided with the hollow portion 110A and the hollow portion 110B, but the hollow portion 110A and the hollow portion 110B are omitted and mounted. The base 11B and the bottom wall 14 of the hollow seal portion 12 may be integrated. In this case, the hole 11 C is provided in the bottom wall 14 of the hollow seal portion 12 and is fixed to the door side inner panel 2 B of the door frame 2 by the clip 20 from the hollow interior 12 B.

また、例えば、中空シール部１２を構成する第１周壁、第２周壁、第３周壁の厚さについては、第１の実施形態及び第２の実施形態では、第１周壁、第２周壁で同じ（第１の実施形態の肉薄部１６Ａを除く）であったが、第３の実施形態と同じく第１周壁を厚くしてもよい。また、第３の実施形態においては、第１周壁を厚く形成したが、第１周壁を第２周壁、第３周壁と同じ厚さにしてもよい。 Further, for example, the thicknesses of the first peripheral wall, the second peripheral wall, and the third peripheral wall constituting the hollow seal portion 12 are the same in the first peripheral wall and the second peripheral wall in the first embodiment and the second embodiment. Although it was (except the thin part 16A of 1st Embodiment), you may make the 1st surrounding wall thick similarly to 3rd Embodiment. In the third embodiment, the first peripheral wall is formed thick. However, the first peripheral wall may have the same thickness as the second peripheral wall and the third peripheral wall.

１ドア
２ドアフレーム
２Ａドア側アウタパネル
２Ｂドア側インナパネル
３ドアガラス
４車体側アウタパネル
１０ドアウェザストリップ
１１Ａ基底部
１１Ｂ取付基部
１１Ｃ孔部
１２中空シール部
１２Ｂ中空内部
１２Ｈエア抜き部
１３リップ部
１４底壁
１５第１周壁
１６第２周壁
１６Ａ肉薄部
１６Ｂノッチ部
１７第３周壁
１８突起部
１９突状部 DESCRIPTION OF SYMBOLS 1 Door 2 Door frame 2A Door side outer panel 2B Door side inner panel 3 Door glass 4 Car body side outer panel 10 Door weather strip 11A Base part 11B Mounting base part 11C Hole part 12 Hollow seal part 12B Hollow inside 12H Air vent part 13 Lip part 14 Bottom Wall 15 First peripheral wall 16 Second peripheral wall 16A Thin portion 16B Notch portion 17 Third peripheral wall 18 Protruding portion 19 Protruding portion

Claims

A door weather strip that is attached to the outer periphery of the door of the automobile and seals between the body of the automobile and the door,
The door weather strip includes an attachment base attached to the door;
A hollow seal portion that contacts the vehicle body and seals between the door and
The door weather strip according to claim 1, wherein a cross-sectional area inside the hollow seal portion is deformed so as to increase when contacting with the vehicle body as compared with when not contacting with the vehicle body.

The hollow seal portion has a substantially triangular or substantially fan-shaped cross-sectional shape including a bottom wall, a first peripheral wall located on the vehicle inner side, and a second peripheral wall located on the vehicle outer side,
The angle formed by the bottom wall and the first peripheral wall is an obtuse angle,
The door weather strip according to claim 1, wherein the second peripheral wall is curved convexly with respect to the bottom wall.

The door weather strip according to claim 2 which has a thin part in the inner surface of said 2nd peripheral wall of said hollow seal part.

The door weather strip according to claim 2, wherein an inner surface of the second peripheral wall of the hollow seal portion has a notch.

The hollow seal portion is connected to the bottom wall, a first peripheral wall located on the inner side of the vehicle, the first peripheral wall, a second peripheral wall located on the outer side of the vehicle, and connected to the second peripheral wall, and the second peripheral wall Having a substantially rectangular cross-sectional shape with a third peripheral wall located outside the vehicle,
The door weather strip according to claim 1, wherein an angle formed by the bottom wall and the first peripheral wall is an obtuse angle.

The door weather strip according to claim 5, wherein the hollow seal portion has a substantially parallelogram-shaped cross-sectional shape.

The door weather strip according to any one of claims 2 to 6, wherein the first peripheral wall of the hollow seal portion is curved concavely with respect to the bottom wall.

The door weather strip according to any one of claims 2 to 7, wherein the first peripheral wall of the hollow seal portion is formed thicker than other peripheral walls forming the hollow seal portion.

9. The door weather strip according to claim 2, wherein a protrusion projecting inward of the vehicle is formed at an apex portion of the first peripheral wall and the second peripheral wall of the hollow seal portion.