JPH0522373Y2 - - Google Patents

Description

【考案の詳細な説明】 ＜産業上の利用分野＞ 本考案は、ボデイフレームのラーメン構造等の
溶接部に用いられる自動車用溶接補強部材に関す
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a welded reinforcing member for automobiles used in welded parts of rigid frame structures of body frames and the like.

＜従来の技術＞ 近年、高床化、外板のリベツトルス化、窓の大
型化等に対応するため、大型観光バスではボデイ
にスケルトン構造を採用するものが主流となつて
きた。<Conventional Technology> In recent years, in order to accommodate higher floors, riveted outer panels, larger windows, etc., it has become mainstream for large tour buses to adopt a skeleton structure for the body.

スケルトン構造とは、第２図にその斜視を示す
ように鋼材等でボデイの骨格１を形成し、この骨
格１に化粧板としての外板２を貼り付けて完成さ
せるものである。そして、この骨格としては剛性
確保のため、ダイアゴナルメンバを多用したラー
メン構造が一般に用いられている。 The skeleton structure is completed by forming a body skeleton 1 of steel or the like, and attaching an outer panel 2 as a decorative panel to this skeleton 1, as shown in perspective in FIG. In order to ensure rigidity, a rigid frame structure that uses many diagonal members is generally used as this skeleton.

第３図に示したものは、第２図Ａ部詳細であ
り、ボデイレール３と二本のダイアゴナルメンバ
４，５の接合部を拡大したものである。 What is shown in FIG. 3 is a detailed view of part A in FIG. 2, which is an enlarged view of the joint between the body rail 3 and the two diagonal members 4 and 5.

ボデイレール３は異形断面、ダイアゴナルメン
バ４，５は矩形断面の各々管状に形成されてお
り、各ダイアゴナルメンバ４，５の接合端はボデ
イレール３との交角に合わせてカツトされてい
る。ボデイレール３とダイアゴナルメンバ４，５
の接合は突き合せ溶接で行われるが、ダイアゴナ
ルメンバ４，５の端部のみを溶接しただけでは強
度・剛性が不足する。そのため、通常、第３図の
ように穴６ａ（本図では二個）が明けられた溶接
補強部材６が接合部に用いられている。 The body rail 3 is formed into a tubular shape with a modified cross section, and the diagonal members 4 and 5 are each formed into a tubular shape with a rectangular cross section, and the joining ends of each diagonal member 4 and 5 are cut to match the intersection angle with the body rail 3. Body rail 3 and diagonal members 4 and 5
are joined by butt welding, but if only the ends of the diagonal members 4 and 5 are welded, the strength and rigidity will be insufficient. Therefore, as shown in FIG. 3, a welded reinforcing member 6 with holes 6a (two in this figure) is usually used at the joint.

この溶接補強部材６は、ボデイレール３とは断
続すみ肉溶接で、ダイアゴナルメンバ４，５とは
前述した穴６ａを使用した栓溶接で、それぞれ接
合されている。溶接補強部材６とダイアゴナルメ
ンバ４，５との接合を通常のすみ肉溶接ではなく
栓溶接で行うのは、すみ肉溶接ではダイアゴナル
メンバ４，５の溶接部に直線的な熱歪が生じるた
め、亀裂が往々に発生することと、接合力自体も
溶接長を大きくとりにくいため、栓溶接等に比べ
ると小さいこととの二つの理由による。 This welded reinforcing member 6 is joined to the body rail 3 by intermittent fillet welding, and to the diagonal members 4 and 5 by plug welding using the holes 6a described above. The reason why the weld reinforcement member 6 and the diagonal members 4 and 5 are joined by plug welding instead of the usual fillet welding is because fillet welding causes linear thermal strain in the welded parts of the diagonal members 4 and 5. This is due to two reasons: cracks often occur, and the joining force itself is smaller than that of plug welding because it is difficult to increase the welding length.

＜考案が解決しようとする問題点＞ ところで、第２図を参照して解るように、設計
上の必要から、ボデイレール３とダイアゴナルメ
ンバの交角はボデイフレームの各部で種々に異つ
ており、また同一個所に接合されるダイアゴナル
メンバの本数や太さも一定していない。したがつ
て、接合部に用いられる溶接補強部材６は明けら
れるべき穴６ａの個数やピツチあるいは穴径の違
い等から一台の観光バスにおいても数十種用意す
る必要があつた。<Problems to be solved by the invention> By the way, as can be seen with reference to FIG. 2, due to design requirements, the intersection angles between the body rail 3 and the diagonal member vary in various parts of the body frame, and are also the same. The number and thickness of diagonal members joined at each location are also not constant. Therefore, it has been necessary to prepare dozens of types of welded reinforcing members 6 used for the joints even for a single sightseeing bus due to differences in the number, pitch, or diameter of the holes 6a to be drilled.

このことによる問題点としては、溶接補強部材
６の作成・管理工数が大きい外に、ボデイフレー
ム制作時に多種のものから適するものを選びださ
ねばならず、時として誤作の原因となることであ
る。 Problems caused by this are that not only does it require a large amount of man-hours to create and manage the welded reinforcing member 6, but also the need to select a suitable material from a wide variety of materials when producing the body frame, which can sometimes lead to manufacturing errors. be.

＜問題点を解決するための手段＞ そこで、本考案では複数の母材間の接合部に当
て金として用いられる金属板の少なくとも一辺に
連続した波型を形成し、この波型辺を母材の面に
すみ肉溶接するようにしたのである。<Means for solving the problem> Therefore, in the present invention, a continuous wave pattern is formed on at least one side of a metal plate used as a filler at the joint between a plurality of base materials, and this wave-shaped side is connected to the base metal. The fillet weld was made on the surface of the plate.

＜作用＞ ダイアゴナルメンバ等の母材の面に波型辺がす
み肉溶接されるため、栓溶接と同等の溶接強度が
得られ、且つ波型が連続しているため、母材同志
の交角や結合本数が異つた種々の部位に使用でき
る。<Function> Since the corrugated side is fillet welded to the surface of the base metal such as a diagonal member, welding strength equivalent to plug welding can be obtained, and since the corrugation is continuous, the intersection angle between the base metals and Can be used in various locations with different numbers of connections.

＜実施例＞ 第１図には本考案に係る溶接補強部材の一実施
例を示し、その構成と作用を説明する。尚、説明
にあたつては、前述した従来のものと同一の部材
には同一の符号を付し、その説明は省略する。<Example> FIG. 1 shows an example of a welded reinforcing member according to the present invention, and its structure and operation will be explained. Incidentally, in the description, the same members as those of the conventional device described above are given the same reference numerals, and the description thereof will be omitted.

図に示すように、本実施例の溶接補強部材６の
一辺（以下、波型辺６ｂ）は波型に形成されてい
る。この波型辺６ｂは四個の凸部と三個の凹部と
より成つており、ダイアゴナルメンバ４，５にす
み肉溶接されている。そして、溶接部は凸部と凹
部の両方に掛つており、曲線状となつている。 As shown in the figure, one side (hereinafter referred to as the wavy side 6b) of the welding reinforcing member 6 of this embodiment is formed into a wavy shape. This wave-shaped side 6b is made up of four convex portions and three concave portions, and is fillet welded to the diagonal members 4 and 5. The welded portion spans both the convex portion and the concave portion, and has a curved shape.

このため、溶接によつて生じた熱歪も直線的に
ならず、該部に前述したような亀裂が発生するこ
とがない。また、当然のことながら溶接長さは長
くでき、強度的も満足できる。さらに、ボデイレ
ール３とダイアゴナルメンバとの交角やダイアゴ
ナルメンバの太さ等が異つても同一の溶接補強部
材６で対応できるのである。 Therefore, the thermal strain caused by welding is not linear, and cracks as described above do not occur in this part. Furthermore, it goes without saying that the welding length can be increased and the strength can be satisfied. Furthermore, even if the intersection angle between the body rail 3 and the diagonal member, the thickness of the diagonal member, etc. are different, the same welding reinforcing member 6 can be used.

尚、本実施例の溶接補強部材６では、波型辺６
ｂの凸部を四個としたが、凸部の個数やその大き
さ、あるいは波型辺６ｂの長さの違うものを数種
類用意すれば、対応できる接合部の種類は非常に
多くなる。また、一辺だけでなく、二辺以上を波
型辺としてもよい。さらに本考案は観光バスのボ
デイフレーム以外、例えば車両運搬用トラツクの
荷台構造等にも適用できし、軽合金製の骨格に適
用できるように軽合金で作成とてもよい。 In addition, in the welded reinforcing member 6 of this embodiment, the corrugated side 6
Although the number of convex portions b is assumed to be four, if several types of convex portions with different numbers and sizes or different lengths of the wavy sides 6b are prepared, the number of types of joint portions that can be accommodated can be greatly increased. Moreover, not only one side but two or more sides may be wave-shaped sides. Furthermore, the present invention can be applied not only to the body frame of a sightseeing bus, but also to the platform structure of a truck for transporting vehicles, etc., and can be made of light alloy so that it can be applied to a frame made of light alloy.

＜考案の効果＞ 本考案の溶接補強部材によれば、接合部の溶接
強度が充分確保でき、亀裂の発生がない上に、同
一のもので種々の接合部位に対応できるため、当
該部材の作成・管理工数が減少できると共に、使
用時の選択も容易になり、誤作もなくなる。<Effects of the invention> According to the welded reinforcing member of the present invention, sufficient welding strength can be ensured at the joint, no cracks will occur, and the same material can be used for various joints, making it easier to create the member.・In addition to reducing management man-hours, selection during use becomes easier and mistakes are eliminated.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る溶接補強部材を使用した
ボデイフレーム接合部の斜視図であり第３図に対
応している。また、第２図は大型観光バスの部分
断面斜視図であり、第３図は従来のボデイフレー
ム接合部を示す第２図中Ａ部詳細図である。 図中、１はボデイフレーム、２は外板、３はボ
デイレール、４，５はダイアゴナルメンバ、６は
溶接補強部材である。 FIG. 1 is a perspective view of a body frame joint using the welded reinforcing member according to the present invention, and corresponds to FIG. 3. Further, FIG. 2 is a partially sectional perspective view of a large sightseeing bus, and FIG. 3 is a detailed view of section A in FIG. 2 showing a conventional body frame joint. In the figure, 1 is a body frame, 2 is an outer plate, 3 is a body rail, 4 and 5 are diagonal members, and 6 is a welded reinforcing member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の母材間の接合部に当て金として用いられ
る金属板の少なくとも一辺に連続した波型を形成
し、この波型辺を母材の面にすみ肉溶接するよう
にしたことを特徴とする自動車用溶接補強部材。 A continuous wave is formed on at least one side of a metal plate used as a filler at the joint between a plurality of base materials, and this wave-shaped side is fillet welded to the surface of the base metal. Welded reinforcement parts for automobiles.