JP3928371B2

JP3928371B2 - Side sill structure of automobile

Info

Publication number: JP3928371B2
Application number: JP2001145720A
Authority: JP
Inventors: 勝之安藤
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 2001-05-16
Filing date: 2001-05-16
Publication date: 2007-06-13
Anticipated expiration: 2021-05-16
Also published as: JP2002337748A

Description

【０００１】
【発明の属する技術分野】
この発明は、自動車のサイドシル部構造に関する。
【０００２】
【従来の技術】
従来の自動車のサイドシル部構造としては、図７に示すようなものが知られている（類似技術として、実公昭６１−３４９３５号公報、実公昭６２−３９９８０号公報参照）。
【０００３】
このような従来の自動車のサイドシル部Ｓ１においては、サイドシルアウタ部分４０を他の車体側部外板と一体のボディサイドアウタとして成形可能なように、サイドシルアウタ部分４０の外側部から下部にわたる断面形状を緩やかに湾曲させる必要があった。従って、強度ないし剛性上必要な断面積を確保する為に、図７に二点鎖線で示す矩形状断面ＳＱ等に比べ、断面幅もしくは高さが余分に必要となり、スペース効率上不利となる傾向があった。
【０００４】
そこで、最近は図８に示すように、サイドシルアウタ４２をボディサイドアウタ４４と別体成形し、サイドシルアウタ４２の外側面等でボディサイドアウタ４４と重合して接合する構造も採用されてきている。
【０００５】
【発明が解決しようとする課題】
しかしながら、このようなサイドシル部構造Ｓ２においては、ボディサイドアウタ４４との接合部４５がサイドシルアウタ４２の外側面等外観上目立つ部位に生じることになり、ドアを開けた際の見栄えを確保するために、シルカバー等目隠し用の外装部品４６を追加する必要があった。そのため、コスト上不利となることは勿論、サイドシルアウタ４２外側面をドア４７で覆う外観デザインを採用する場合に、サイドシル４３、外装部品４６、ドア４７の配設スペースを確保し難くなるという問題点があった。
【０００６】
更に、車体塗装工程において、サイドシルアウタ４２とボディサイドアウタ４４との接合面４５に電着塗料Ｐを行き渡らせ防錆性能を確保することが困難であった。例えば図８の様に、サイドシルアウタ４２上面およびボディサイドアウタ４４の対応部分に電着塗料Ｐの通過孔４８、４９を設け、ドア４７とボディサイドアウタ４４との間から入ってきた電着塗料Ｐを通過孔４８、４９から前記接合面４５やサイドシル４３閉断面内に導こうとしても、経路途中のドア内側面５０とサイドシル外側面５１に電着塗料Ｐが付着してしまう為に、充分な電着膜厚を得るのが難しい、という問題点があった。
【０００７】
この発明は、このような従来の技術に着目してなされたものであって、シルカバー等目隠し用の外装部品を追加しなくてもドアを開けた際の見栄えを確保できて、かつ防錆性能を容易に確保できる、自動車のサイドシル構造を提供するものである。
【０００８】
【課題を解決するための手段】
請求項１の発明は、閉断面を有し車両前後方向に延設されたサイドシルと、車体側面を構成し下縁部を前記サイドシルに接合されたボディサイドアウタと、該ボディサイドアウタの下縁部を覆い車体側面のドア開口部を閉成するドアとから成る自動車のサイドシル部構造であって、前記サイドシル外側面下部に、前記ボディサイドアウタ下縁部との接合部が複数箇所設けられ、前記接合部同士の間と、前記サイドシル外側面及び下面とに、それぞれ連通孔が設けられると共に、前記接合部が、前記ボディサイドアウタの下縁部と前記ドアとの隙間をシールするシール部材によって覆われており、前記接合部同士の間の連通孔は、前記ボディサイドアウタ下縁部に設けられた、車体側方から見て上辺よりも下辺が長い等脚台形状の切欠きと、前記サイドシル外側面との隙間からなり、前記サイドシル外側面における前記切欠きに対応する位置には、この切欠きの前縁部及び後縁部に沿った前後一対の凹溝と、これらの凹溝同士の間に形成され、前記ボディサイドアウタ下縁部と略面一となる凸部とが設けられ、前記シール部材は前記凸部に固定されていることを特徴とする。
【００１２】
請求項２の発明は、請求項１に記載の自動車のサイドシル部構造において、前記シール部材の下縁に、前記接合部同士の間の連通孔を下側から覆うリップ部を延設したことを特徴とする。
【００１３】
【発明の効果】
請求項１の発明によれば、サイドシル外側面下部に、ボディサイドアウタ下縁部との接合部が複数箇所設けられ、接合部同士の間と、サイドシル外側面及び下面とに、それぞれ連通孔が設けられているため、車体塗装工程でサイドシル下面の連通孔からサイドシル断面内に浸入した電着塗料は、サイドシル外側面の連通孔からサイドシル外側面とボディサイドアウタ下縁部の内側面との間に浸入し、更にサイドシル外側面下部とボディサイドアウタ下縁部との接合部同士の間に設けられた連通孔から車体外部に抜けることができる。
【００１４】
従って、従来困難であったサイドシル外側面とボディサイドアウタ下縁部の内側面における電着塗装膜厚の確保が容易となり、この部位の防錆性能を確保することができる。
【００１５】
また、サイドシル外側面下部とボディサイドアウタ下縁部との接合部が、ボディサイドアウタの下縁部とドアとの隙間をシールするシール部材によって覆われているため、シルカバー等目隠し用の部品を別に追加しなくてもドアを開けた際の見栄えを確保することができる。
【００１６】
また、請求項１の発明によれば、接合部同士の間の連通孔は、ボディサイドアウタ下縁部に設けられた切欠きと、サイドシル外側面との隙間から成る。このため、ボディサイドアウタ下縁部やサイドシル外側面に余分な孔加工を施さなくても、連通孔を簡便に設けることができる。
【００１７】
さらに、請求項１の発明によれば、サイドシル外側面には、切欠きに対応する位置にボディサイドアウタ下縁部と略面一となる凸部が設けられ、シール部材は凸部に固定されている。このため、ボディサイドアウタ下縁部に取付孔等を設けなくても、ボディサイドアウタ下縁部に沿ってシール部材を確実に固定することができる。また、一定断面のシール部材でシールできるので、押出成形等によりシール部材をコスト的に有利に得ることもできる。
【００１８】
そして、請求項１の発明によれば、凸部には、切欠きの縁部に沿った凹溝が設けられている。このため、サイドシル外側面とボディサイドアウタ下縁部の内側面との間に浸入した電着塗料や水等を、接合部同士の間の連通孔から凹溝に沿って円滑に排出することができる。
【００１９】
請求項２の発明によれば、シール部材の下縁に、接合部同士の間の連通孔を下側から覆うリップ部を延設したため、下側からの洗車水や泥はね等が接合部同士の間の連通孔から内部へ侵入するのを防ぐことができる。
【００２０】
【発明の実施の形態】
以下、本発明の好適な一実施形態を図１〜６に基づいて説明する。尚、従来と共通ないし均等な部分には同一の符号を付し、重複する説明は省略する。また、図１では、見易くするために、シール部材及びドアを省いてある。
【００２１】
まず、構成を説明する。自動車の車体Ｂの両側下部には、それぞれハット形断面を有するシルインナ１とシルアウタ２とを上下のフランジ部で接合することで閉断面に形成されたサイドシル３が車両前後方向に延設されている。
【００２２】
車体Ｂの外側面を構成するボディサイドアウタ４は、その下縁部５をシルアウタ外側面６の下部６ａと複数箇所でスポット溶接接合されて、接合部７…を形成している。このボディサイドアウタ４の下縁部５は、車体Ｂ側面のドア開口部を閉成するドア１０によって覆われている。
【００２３】
ドア１０は、ドアインナ８とドアアウタ９とを接合することで構成されており、これらサイドシル３、ボディサイドアウタ４、ドア１０からサイドシル部Ｓが構成されている。なお、１５は、ドアアウタ下縁９ａを保護及び装飾するドアロアモールである。
【００２４】
ここで、複数箇所の接合部７…同士の間、シルアウタ外側面６及びシルアウタ下面１１に、それぞれ連通孔１２…、１３…、１４…が設けられると共に、接合部７…が、ボディサイドアウタ下縁部５とドアインナ８との隙間をシールするシール部材１６によって覆われている。
【００２５】
本実施形態では、接合部７…同士の間の連通孔１２…は、接合部７…同士の間に１ヶ所おきに設けられた、側方から見て下辺の広い等脚台形状の切欠き１７…と、シルアウタ外側面６との隙間１８…から成っている。
【００２６】
そして、シルアウタ外側面６には、切欠き１７…に対応する前後位置に、ボディサイドアウタ下縁部５と略面一となると共に切欠き１７…より一回り小さな、側方から見て下辺の広い等脚台形状の凸部６ｂ…が設けられている。
【００２７】
本実施形態では、等脚台形状の凸部６ｂ…の中心位置に形成された取付孔１９…に、シール部材１６が、クリップ等公知の止着手段２０により固定されている。
【００２８】
ここで、シルアウタ外側面６及び下面１１にも、切欠き１７…に対応する前後位置、より具体的には、切欠き１７…に対応する凸部６ｂ…に形成された取付孔１９…に対応する前後位置に、それぞれ連通孔１３…及び連通孔１４…が設けられている。
【００２９】
また、凸部６ｂ…には、切欠き１７…の前、後縁部２１…、２２…に沿って斜め前下方、斜め後下方に延びる凹溝２３…、２４…が設けられている。
【００３０】
本実施形態においては、シール部材１６の下縁に、接合部７…同士の間の連通孔１２…、即ち隙間１８…を下側から覆うリップ部２５を延設してある。
【００３１】
次に、以上の様な本実施形態の作用を説明する。
【００３２】
本実施形態の構成によれば、シルアウタ外側面６の下部６ａに、ボディサイドアウタ下縁部５との複数箇所の接合部７…が設けられ、接合部７…同士の間、シルアウタ外側面６及びシルアウタ下面１１とに、それぞれ連通孔１２…、１３…、１４…が設けられているため、車体塗装工程でシルアウタ下面１１の連通孔１４…からサイドシル３断面内に浸入した電着塗料Ｐは、シルアウタ外側面６の連通孔１３…からシルアウタ外側面６とボディサイドアウタ下縁部５の内側面５ａとの間に浸入し、更にサイドシル外側面６の下部６ａとボディサイドアウタ下縁部５との接合部７…同士の間に設けられた連通孔１２…から車体外部に抜けることができる。
【００３３】
従って、従来困難であったシルアウタ外側面６とボディサイドアウタ下縁部５の内側面５ａにおける電着塗装膜厚の確保が容易となり、この部位の防錆性能を確保することができる。
【００３４】
また、シルアウタ外側面６の下部６ａとボディサイドアウタ下縁部５との接合部７…が、ボディサイドアウタ下縁部５とドアインナ８との隙間をシールするシール部材１６によって覆われているため、シルカバー等目隠し用の部品を別に追加しなくてもドア１０を開けた際の見栄えを確保することができる。
【００３５】
そして、接合部７…同士の間の連通孔１２…は、ボディサイドアウタ下縁部５に設けられた切欠き１７…と、シルアウタ外側面６との隙間１８…から成る。このため、ボディサイドアウタ下縁部５やシルアウタ外側面６に余分な孔加工を施さなくても、連通孔１２…を簡便に設けることができる。
【００３６】
特に、本実施形態の構成によれば、シルアウタ外側面６には、切欠き１７…に対応する位置にボディサイドアウタ下縁部５と略面一となる凸部６ｂ…が設けられ、シール部材１６は凸部６ｂ…の中心位置に形成された取付孔１９…に固定されている。
【００３７】
このため、ボディサイドアウタ下縁部５に取付孔等を設けなくても、ボディサイドアウタ下縁部５に沿ってシール部材１６を確実に固定することができる。また、一定断面のシール部材１６でシールできるので、押出成形等によりシール部材１６をコスト的に有利に得ることもできる。
【００３８】
さらに、本実施形態においては、凸部６ｂ…には、切欠き１７…の前、後縁部２１…、２２…に沿った凹溝２３…、２４…が設けられている。このため、シルアウタ外側面６とボディサイドアウタ下縁部５の内側面５ａとの間に浸入した電着塗料Ｐや水等を、接合部７…同士の間の連通孔１２…、即ち隙間１８…から凹溝２３…、２４…に沿って円滑に排出することができる。
【００３９】
さらに、本実施形態の構成によれば、シール部材１６の下縁に、接合部７…同士の間の連通孔１２…を下側から覆うリップ部２５を延設したため、下側からの洗車水や泥はね等が接合部７…同士の間の連通孔１２…、即ち隙間１８…から内部へ侵入するのを防ぐことができる。
【００４０】
なお、本発明は、本実施形態の構成に限定されるものではない。例えば、本実施形態においては、切欠き１７…や凸部６ｂ…を下辺の広い等脚台形状としてあるが、異なる形状としても同等の作用効果が得られる。
【００４１】
同様に、取付孔１９…を凸部６ｂ…の中心位置に形成してあるが、凸部内の他の位置としても同等の作用効果が得られる。
【００４２】
また、本実施形態においては、連通孔１３…、１４…が、シルアウタ外側面６及び下面１１の切欠き１７…に対応する前後位置、より具体的には、切欠き１７…に対応する凸部６ｂ…に形成された取付孔１９…に対応する前後位置に、それぞれ設けられている。この様にすると、電着塗料Ｐのサイドシル３断面内への浸入、及び車体外部への抜けがより円滑に行える利点があるが、本発明としては、連通孔が他の前後位置にあっても別段問題はない。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る、自動車のサイドシル部構造を示す要部（図６のＡ部）斜視図である。
【図２】図１のＢ−Ｂ線に沿う断面図である。
【図３】図１のＣ−Ｃ線に沿う断面図である。
【図４】図１のＤ−Ｄ線に沿う断面図である。
【図５】図１のＥ−Ｅ線に沿う断面図である。
【図６】本発明の一実施形態に係る、自動車の斜視図である。
【図７】従来の自動車のサイドシル部構造を示す、図５相当の概略断面図である。
【図８】従来の他の自動車のサイドシル部構造を示す、図５相当の概略断面図である。
【符号の説明】
３サイドシル
４ボディサイドアウタ
７接合部
１０ドア
１２、１３、１４連通孔
１６シール部材
Ｓサイドシル部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a side sill structure of an automobile.
[0002]
[Prior art]
As a conventional side sill structure of an automobile, a structure as shown in FIG. 7 is known (refer to Japanese Utility Model Publication Nos. 61-34935 and 62-39980 as similar techniques).
[0003]
In such a conventional side sill portion S1 of the automobile, a cross-sectional shape extending from the outer side to the lower side of the side sill outer portion 40 so that the side sill outer portion 40 can be formed as a body side outer integrated with another vehicle body side skin. It was necessary to bend gently. Therefore, in order to ensure the necessary cross-sectional area in terms of strength or rigidity, an extra cross-sectional width or height is required as compared to the rectangular cross-section SQ indicated by a two-dot chain line in FIG. 7, and this tends to be disadvantageous in terms of space efficiency. was there.
[0004]
Therefore, recently, as shown in FIG. 8, a structure has been adopted in which the side sill outer 42 is formed separately from the body side outer 44 and is joined to the body side outer 44 on the outer surface of the side sill outer 42. .
[0005]
[Problems to be solved by the invention]
However, in such a side sill portion structure S2, the joint portion 45 with the body side outer 44 is generated in a conspicuous portion such as the outer side surface of the side sill outer 42, so as to ensure the appearance when the door is opened. In addition, it is necessary to add a blindfold exterior part 46 such as a sill cover. Therefore, in addition to being disadvantageous in terms of cost, when adopting an external design in which the outer surface of the side sill outer 42 is covered with the door 47, it is difficult to secure an arrangement space for the side sill 43, the exterior component 46, and the door 47. was there.
[0006]
Further, in the vehicle body painting process, it is difficult to ensure the rust prevention performance by spreading the electrodeposition paint P on the joint surface 45 between the side sill outer 42 and the body side outer 44. For example, as shown in FIG. 8, through-holes 48 and 49 for the electrodeposition coating P are provided on the upper surface of the side sill outer 42 and the corresponding portions of the body side outer 44, and the electrodeposition coating enters from between the door 47 and the body side outer 44. Even if it is attempted to guide P from the through holes 48 and 49 into the joint surface 45 or the side sill 43 closed cross section, the electrodeposition paint P adheres to the door inner side surface 50 and the side sill outer side surface 51 in the middle of the path. There is a problem that it is difficult to obtain an appropriate electrodeposition film thickness.
[0007]
This invention is made by paying attention to such conventional technology, and can ensure the appearance when the door is opened without adding a blindfold exterior part such as a sill cover, and also has rust prevention performance. The present invention provides a side sill structure of an automobile that can easily secure the above.
[0008]
[Means for Solving the Problems]
The invention of claim 1 includes a side sill having a closed cross section and extending in the vehicle front-rear direction, a body side outer that forms a side surface of the vehicle body, and a lower edge portion is joined to the side sill, and a lower edge of the body side outer Vehicle side sill structure comprising a door that covers the door and closes the door opening on the side of the vehicle body, and a plurality of joints with the lower side edge of the body side outer are provided on the lower side of the side sill outer surface, A communication hole is provided between the joint portions and on the outer side surface and the lower surface of the side sill, and the joint portion is sealed by a seal member that seals a gap between a lower edge portion of the body side outer and the door. covered and, communication holes between each other said joint, said provided in the body side outer lower edge, the lower than the upper side when viewed from the side of the vehicle body is cutout in a long isosceles shape, before A pair of front and rear grooves along the front edge and rear edge of the notch, and a pair of grooves between the grooves are formed at a position corresponding to the notch on the outer surface of the side sill. And a convex part that is substantially flush with the lower edge of the body side outer, and the sealing member is fixed to the convex part .
[0012]
According to a second aspect of the present invention, in the side sill portion structure for an automobile according to the first aspect , a lip portion is provided on the lower edge of the seal member so as to cover the communication hole between the joint portions from below. Features.
[0013]
【The invention's effect】
According to the invention of claim 1, a plurality of joint portions with the body side outer lower edge portion are provided in the lower portion of the side sill outer surface, and the communication holes are provided between the joint portions and between the side sill outer surface and the lower surface. Therefore, the electrodeposition paint that has entered the cross section of the side sill from the communication hole on the bottom surface of the side sill in the car body painting process is between the communication hole on the side sill outer surface and the outer surface of the side sill and the inner surface of the lower edge of the body side outer. It can penetrate to the outside of the vehicle body from the communication hole provided between the joint portions of the side sill outer surface lower part and the body side outer lower edge part.
[0014]
Accordingly, it is easy to ensure the film thickness of the electrodeposition coating on the outer side surface of the side sill and the inner side surface of the lower edge of the body side outer, which has been difficult in the past, and the rust prevention performance of this portion can be ensured.
[0015]
In addition, the joint between the lower part of the outer side surface of the side sill and the lower edge of the body side outer is covered with a sealing member that seals the gap between the lower edge of the body side outer and the door. Even if it is not added separately, the appearance when the door is opened can be secured.
[0016]
According to the first aspect of the present invention, the communication hole between the joint portions is formed by a gap between the notch provided in the lower edge of the body side outer and the side sill outer surface. For this reason, a communication hole can be simply provided even if it does not give extra hole processing to a body side outer lower edge part or a side sill outer side.
[0017]
Further, according to the invention of claim 1 , the side sill outer surface is provided with a convex portion that is substantially flush with the lower edge of the body side outer at a position corresponding to the notch, and the seal member is fixed to the convex portion. ing. For this reason, even if it does not provide a mounting hole etc. in a body side outer lower edge part, a sealing member can be reliably fixed along a body side outer lower edge part. In addition, since sealing can be performed with a sealing member having a constant cross section, the sealing member can be advantageously obtained in terms of cost by extrusion molding or the like.
[0018]
And according to invention of Claim 1 , the convex groove | channel is provided in the convex part along the edge part of a notch. For this reason, it is possible to smoothly discharge the electrodeposition paint, water, and the like that have entered between the outer side surface of the side sill and the inner side surface of the lower edge of the body side outer along the concave groove from the communication hole between the joint portions. it can.
[0019]
According to invention of Claim 2 , since the lip part which covers the communicating hole between joining parts from the lower side was extended in the lower edge of the sealing member, the car-washing water, mud splashes, etc. from the lower part were joined. It is possible to prevent intrusion from the communication hole between them.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to a common or equivalent part conventionally, and the overlapping description is abbreviate | omitted. Further, in FIG. 1, the seal member and the door are omitted for easy viewing.
[0021]
First, the configuration will be described. Side sills 3 formed in a closed cross section by joining a sill inner 1 and a sill outer 2 each having a hat-shaped cross section at the upper and lower flange portions are extended in the vehicle front-rear direction at both lower portions of the body B of the automobile. .
[0022]
The body side outer 4 constituting the outer surface of the vehicle body B has its lower edge portion 5 spot welded to the lower portion 6a of the sill outer outer surface 6 at a plurality of locations to form joint portions 7. The lower edge 5 of the body side outer 4 is covered with a door 10 that closes a door opening on the side of the vehicle body B.
[0023]
The door 10 is configured by joining the door inner 8 and the door outer 9, and the side sill portion S is configured by the side sill 3, the body side outer 4, and the door 10. Reference numeral 15 denotes a door lower molding that protects and decorates the door outer lower edge 9a.
[0024]
Here, communication holes 12, 13, 14, and so on are provided in the sill outer outer surface 6 and the sill outer lower surface 11, respectively, between the plurality of joint portions 7, and the joint portions 7 are provided under the body side outer. It is covered with a seal member 16 that seals the gap between the edge 5 and the door inner 8.
[0025]
In the present embodiment, the communication holes 12 between the joints 7 are provided at every other place between the joints 7 with an isosceles trapezoidal notch having a wide lower side when viewed from the side. 17 and a gap 18 between the outer outer surface 6 of the silouter.
[0026]
The outer side surface 6 of the sill outer is substantially flush with the lower edge 5 of the body side outer at the front and rear positions corresponding to the notches 17 and is slightly smaller than the notches 17. A wide isosceles trapezoidal convex portion 6b is provided.
[0027]
In the present embodiment, the sealing member 16 is fixed to a mounting hole 19 formed at the center position of the isosceles trapezoidal convex portions 6b by a known fastening means 20 such as a clip.
[0028]
Here, the outer outer surface 6 and the lower surface 11 of the sill outer also correspond to the front and rear positions corresponding to the notches 17, more specifically, the mounting holes 19 formed in the convex portions 6 b corresponding to the notches 17. The communication holes 13 and the communication holes 14 are respectively provided at the front and rear positions.
[0029]
Further, the convex portions 6b are provided with concave grooves 23, 24, which extend obliquely forward and downward and obliquely rearward and downward along the front edge and the rear edge portions 21 ... 22 of the notches 17 ....
[0030]
In the present embodiment, a lip portion 25 that covers the communication hole 12 between the joint portions 7, that is, the gap 18, is extended from the lower side to the lower edge of the seal member 16.
[0031]
Next, the operation of the present embodiment as described above will be described.
[0032]
According to the configuration of the present embodiment, the lower portion 6a of the sill outer outer surface 6 is provided with a plurality of joint portions 7 with the body side outer lower edge portion 5, and the sill outer outer surface 6 is between the joint portions 7. , 13..., 14... Are provided in the bottom surface 11 of the sill outer and the electrodeposition paint P that has entered the side sill 3 cross section through the communication holes 14 of the bottom surface 11 of the sill outer in the vehicle body painting process. The outer side surface 6 of the sill outer side 6 enters between the outer side surface 6 of the sill outer side and the inner side surface 5a of the lower side edge 5 of the body side outer, and the lower part 6a of the side sill outer side 6 and the lower side edge 5 of the body side outer Can be pulled out of the vehicle body through the communication holes 12 provided between the joints 7.
[0033]
Therefore, it is easy to secure the electrodeposition coating film thickness on the outer side surface 6 of the sill outer and the inner side surface 5a of the lower side edge 5 of the body side outer, which is difficult in the past, and the rust prevention performance of this part can be ensured.
[0034]
Further, the joint portion 7 between the lower portion 6a of the outer outer outer surface 6 and the body side outer lower edge portion 5 is covered with a seal member 16 that seals the gap between the body side outer lower edge portion 5 and the door inner 8. Further, it is possible to ensure the appearance when the door 10 is opened without adding a blindfolding part such as a sill cover.
[0035]
The communication holes 12 between the joints 7 are formed by gaps 18 between the notches 17 provided in the body side outer lower edge 5 and the outer outer surface 6 of the sill outer. For this reason, the communication holes 12 can be easily provided without performing extra holes on the body side outer lower edge 5 or the sill outer outer surface 6.
[0036]
In particular, according to the configuration of the present embodiment, the outer surface 6 of the sill outer is provided with the convex portions 6b that are substantially flush with the lower side edge 5 of the body side outer at a position corresponding to the notches 17. 16 is fixed to mounting holes 19 formed at the center of the convex portions 6b.
[0037]
For this reason, the seal member 16 can be reliably fixed along the body side outer lower edge portion 5 without providing a mounting hole or the like in the body side outer lower edge portion 5. Further, since sealing can be performed with the sealing member 16 having a constant cross section, the sealing member 16 can be advantageously obtained in terms of cost by extrusion molding or the like.
[0038]
Further, in the present embodiment, the convex portions 6b are provided with concave grooves 23 along the rear edge portions 21... 22. For this reason, the electrodeposition paint P, water, etc. which have entered between the outer side surface 6 of the sill outer outer side and the inner side surface 5a of the body side outer lower edge portion 5 are connected to the communication holes 12 between the joint portions 7. ... can be smoothly discharged along the grooves 23 ..., 24 ....
[0039]
Furthermore, according to the structure of this embodiment, since the lip part 25 which covers the communication hole 12 ... between the junction parts 7 ... from the lower side was extended at the lower edge of the seal member 16, the car wash water from the lower side. It is possible to prevent mud splash and the like from entering the inside through the communication holes 12 between the joints 7, that is, the gaps 18.
[0040]
Note that the present invention is not limited to the configuration of the present embodiment. For example, in the present embodiment, the notches 17 and the convex portions 6b are formed in an isosceles trapezoidal shape with a wide lower side, but equivalent effects can be obtained even if different shapes are used.
[0041]
Similarly, although the mounting holes 19 are formed at the center position of the convex portion 6b, the same function and effect can be obtained at other positions in the convex portion.
[0042]
Further, in the present embodiment, the communication holes 13..., 14... Are front and rear positions corresponding to the notches 17 of the outer outer surface 6 and the lower surface 11, more specifically, convex portions corresponding to the notches 17. Are provided at the front and rear positions corresponding to the mounting holes 19 formed in 6b. In this way, there is an advantage that the electrodeposition paint P can enter the cross-section of the side sill 3 and slip out to the outside of the vehicle body more smoothly. However, according to the present invention, even if the communication hole is at other front and rear positions. There is no particular problem.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part (A part in FIG. 6) showing a side sill part structure of an automobile according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line BB in FIG.
3 is a cross-sectional view taken along the line CC of FIG.
4 is a cross-sectional view taken along line DD in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along the line EE of FIG.
FIG. 6 is a perspective view of an automobile according to an embodiment of the present invention.
FIG. 7 is a schematic cross-sectional view corresponding to FIG. 5, showing a side sill structure of a conventional automobile.
FIG. 8 is a schematic cross-sectional view corresponding to FIG. 5, showing a side sill portion structure of another conventional automobile.
[Explanation of symbols]
3 Side sill 4 Body side outer 7 Joint 10 Door 12, 13, 14 Communication hole 16 Seal member S Side sill

Claims

A side sill having a closed cross section and extending in the vehicle front-rear direction, a body side outer that forms a side surface of the vehicle body and a lower edge portion is joined to the side sill, and a door on the side surface of the vehicle body that covers the lower edge portion of the body side outer A side sill structure of an automobile comprising a door that closes an opening,
In the lower part of the outer side surface of the side sill, a plurality of joint portions with the lower edge of the body side outer are provided,
Communication holes are provided between the joints and on the side sill outer surface and the lower surface, respectively.
The joint is covered with a seal member that seals a gap between a lower edge of the body side outer and the door ;
A communication hole between the joints is formed between an isosceles trapezoidal notch having a lower side longer than an upper side when viewed from the side of the vehicle body, and a side sill outer surface. Consisting of gaps,
A position corresponding to the notch on the outer side surface of the side sill is formed between a pair of front and rear concave grooves along the front edge and the rear edge of the notch, and between the concave grooves, and the body side A side sill portion structure for an automobile, wherein a convex portion that is substantially flush with an outer lower edge portion is provided, and the sealing member is fixed to the convex portion .

The side sill portion structure for an automobile according to claim 1 , wherein a lip portion is provided at a lower edge of the seal member to cover a communication hole between the joint portions from below .