JP2016082693A

JP2016082693A - Sheath material for wiring harness

Info

Publication number: JP2016082693A
Application number: JP2014211237A
Authority: JP
Inventors: 努大谷; Tsutomu Otani; 敬和榊原; Takakazu Sakakibara
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2014-10-15
Filing date: 2014-10-15
Publication date: 2016-05-16
Anticipated expiration: 2034-10-15
Also published as: JP6245131B2

Abstract

PROBLEM TO BE SOLVED: To prevent generation of warpage or intrusion of foreign substance caused by a bendable cut in a caterpillar type sheath material.SOLUTION: The sheath material comprises a first member and a second member with U-shaped cross sections by continuing upper walls and lower walls in both upper and lower ends of vertical walls. In the first member and the second member, the cuts continued from the vertical wall to the upper wall are provided at intervals in a length direction. A downward step-like projection is provided in the center of a bottom face of a divided piece held between the cuts on the upper wall of the first member. An upward step-like projection is provided in the center of a top face of a divided piece held between the cuts on the upper wall of the second member. The vertical walls of the first member and the second member are disposed oppositely to each other. A bottom face of the upper wall of the first member is placed on the upper wall of the second member and the lower wall of the second member is placed on a top face of the lower wall of the first member, such that the first and second members are assembled in a square cylinder shape. The cuts on the vertical walls of the first and second members are not made opposite to each other but positioned in a staggered arrangement alternately in a length direction, and the step-like projection on the upper wall of the second member is fitted into the cut on the upper wall of the first member.SELECTED DRAWING: Figure 1

Description

本発明はワイヤハーネス用の外装材に関し、詳しくは、キャタピラ型の外装材を改良するものである。 The present invention relates to an outer packaging material for a wire harness, and more particularly, to improve a caterpillar type outer packaging material.

従来、自動車等の車両に配索するワイヤハーネスの電線群は、コルゲートチューブ、プロテクタ等の外装材で外装し、あるいは粘着テープを巻き付けて集束保護している。ワイヤハーネスがスライドシート、スライドドア等に配索され、シートやドアの移動に応じてワイヤハーネスも移動する場合、該ワイヤハーネスの全長を屈曲および伸縮が可能なコルゲートチューブで外装している場合が多い。
前記コルゲートチューブを外装材として用いると、コルゲートチューブは全周のいずれの方向にも屈曲できるため、屈曲方向の規制ができず、周辺機器と接触する恐れがある。さらに、配索スペースが断面四角形状であると、丸型のコルゲートチューブで外装したワイヤハーネスを通すと、配索スペースに挿通できるワイヤハーネスの電線本数が減少し、配索スペースを有効利用できない問題がある。 Conventionally, an electric wire group of a wire harness that is routed in a vehicle such as an automobile is externally covered with an external material such as a corrugated tube or a protector, or is wrapped and protected with an adhesive tape. When a wire harness is routed to a slide seat, a slide door, etc., and the wire harness moves as the seat or door moves, the entire length of the wire harness may be covered with a corrugated tube that can be bent and expanded. Many.
When the corrugated tube is used as an exterior material, the corrugated tube can be bent in any direction of the entire circumference, so that the bending direction cannot be regulated and there is a possibility of contacting with peripheral devices. In addition, if the wiring space has a square cross section, the number of wires in the wire harness that can be inserted into the wiring space decreases when the wire harness covered with a round corrugated tube is passed, and the wiring space cannot be used effectively. There is.

前記問題に対して、本出願人は特開２０１３−４９４０２号公報で図７（Ａ）〜（Ｄ）に示すスライドシート１５０に接続するワイヤハーネス２００の外装材１００として、組立式四角筒状のキャタピラ型の外装材を提供している。該キャタピラ型の外装材１００は図７（Ｂ）に示すように、樹脂製の帯状の平板１０１に長さ方向Ｘに延在する４本の折曲ラインＡ〜Ｄを幅方向Ｙの中間部に間隔をあけて設け、かつ、幅方向の両側縁の一方側に係止突片１０２を設けると共に他方側に係止穴１０３を設け、折曲ラインＡ〜Ｄに沿って折り曲げて四角筒形状とすると共に、係止穴１０３に係止突片１０２を挿入係止して四角筒に保持している。さらに、折曲ラインＡ〜Ｄを結ぶ幅方向に切込ラインＫを長さ方向に間隔をあけて設け、四角筒の３辺１１１、１１２、１１３を分離させている。 With respect to the above problem, the applicant of the present invention has disclosed an assembly-type square cylindrical shape as the exterior material 100 of the wire harness 200 connected to the slide sheet 150 shown in FIGS. 7 (A) to (D) in Japanese Patent Laid-Open No. 2013-49402. Caterpillar-type exterior materials are provided. As shown in FIG. 7B, the caterpillar-type exterior material 100 includes four bent lines A to D extending in the length direction X on a resin-made belt-like flat plate 101 and an intermediate portion in the width direction Y. And is provided with a locking projection piece 102 on one side of both side edges in the width direction and a locking hole 103 on the other side, and is bent along folding lines A to D to form a rectangular cylinder. At the same time, the locking protrusions 102 are inserted and locked in the locking holes 103 and held in the square tube. Further, a cut line K is provided in the width direction connecting the bent lines A to D with a distance in the length direction, and the three sides 111, 112, and 113 of the square tube are separated.

前記のように組み立てた外装材１００は、前記分離された中央の辺１１２と対向する切込ラインＫが無い辺１１４は伸びることができない。よって、図７（Ｃ）（Ｄ）に示すように、ワイヤハーネス２００に外装した外装材１００は、辺１１２が外周側となって一方向きＣ１にのみ屈曲でき、辺１１２が内周側となる他方向きＣ２に屈曲できない。
このように、前記外装材１００は一方向にのみ屈曲できるため、屈曲方向を規制して周辺機器との接触を防止する必要があるワイヤハーネスの外装材として好適に用いられる。かつ、構成が非常に簡単であるため安価に製造できる利点もある。 In the exterior material 100 assembled as described above, the side 114 without the cut line K facing the separated central side 112 cannot extend. Therefore, as shown in FIGS. 7C and 7D, the exterior material 100 sheathed on the wire harness 200 can be bent only in one direction C1 with the side 112 being the outer peripheral side and the side 112 being the inner peripheral side. The other direction C2 cannot be bent.
Thus, since the exterior material 100 can be bent only in one direction, it is suitably used as an exterior material for a wire harness that needs to regulate the bending direction and prevent contact with peripheral devices. In addition, since the structure is very simple, there is an advantage that it can be manufactured at low cost.

特開２０１３−４９４０２号公報JP 2013-49402 A

前記のように、特許文献１のキャタピラ型の外装材１００は、幅方向の切込ラインＫにより一方向に屈曲させることができる利点がある。よって、図８に示すように、スライドシート１５０に接続するスライドシート用のワイヤハーネス２００を外装材１００で外装し、該ワイヤハーネスの上方の一端Ｐ１をスライドシート１５０の下面に固定し、下方の他端Ｐ２をフロア１６０側に固定して用いることができる。 As described above, the caterpillar-type exterior material 100 of Patent Document 1 has an advantage that it can be bent in one direction by the cut line K in the width direction. Therefore, as shown in FIG. 8, the wire harness 200 for the slide sheet connected to the slide sheet 150 is covered with the exterior material 100, and the upper end P <b> 1 of the wire harness is fixed to the lower surface of the slide sheet 150. The other end P2 can be fixed to the floor 160 side.

前記のように、スライドシートとフロアとの間に配索するスライドシート用のワイヤハーネス２００はスライドシート１５０の図中矢印ＦＲで示す前後移動に追従して外装材１００で外装したワイヤハーネスが矢印ｆｒで示す前後方向に移動する。其の際、外装材１００は外周側に切込ラインＫを設けた辺１１２が位置し、スライドシート１５０の下面と対向して位置する。 As described above, the wire harness 200 for the slide sheet routed between the slide sheet and the floor follows the forward / backward movement indicated by the arrow FR of the slide sheet 150 in the drawing, and the wire harness sheathed with the exterior material 100 is an arrow. It moves in the front-rear direction indicated by fr. At that time, the exterior material 100 has a side 112 provided with a cutting line K on the outer peripheral side, and is positioned to face the lower surface of the slide sheet 150.

前記のように、スライドシート１５０の下面と対向する外装材１００の上面に切込ラインＫからなる隙間を挟んで分割した辺１１２が位置すると、スライドシート１５０およびワイヤハーネスの移動時に、外装材１００の内部を挿通するワイヤハーネス２００の電線の反力により、外装材１００の切込ラインＫを挟む両側の辺１１２Ａ、１１２Ｂが図９（Ｂ）に示すように反り上がる現象が発生しやすい。この反り上がりは両側の辺１１２Ａ、１１２Ｂの近接端側が切込ラインＫの隙間に入り込むように下方傾斜し、他端側が上方傾斜する現象により発生する。このような反り上がりが切込ラインＫを挟んで両側の辺１１２に連続して発生すると、図９（Ｃ）の矢印で示すように、外装材１００は矢印で上向きに膨出した状態で反り上がりが発生する恐れがあり、同様に、フロア１６０側でも下向きの辺１１２に下向きの反りが発生する恐れがある。 As described above, when the side 112 divided by the gap formed by the cut line K is located on the upper surface of the exterior material 100 facing the lower surface of the slide sheet 150, the exterior material 100 is moved when the slide sheet 150 and the wire harness are moved. Due to the reaction force of the electric wire of the wire harness 200 that passes through the inside, the sides 112A and 112B on both sides of the cut line K of the exterior material 100 are likely to warp as shown in FIG. 9B. This warping is caused by a phenomenon in which the adjacent end sides of the sides 112A and 112B on both sides are inclined downward so as to enter the gap of the cut line K, and the other end side is inclined upward. When such warping rises continuously on both sides 112 with the cutting line K in between, the exterior material 100 warps in the state of bulging upward as shown by the arrow in FIG. 9C. There is a possibility that a rise will occur, and similarly, a downward warping may occur in the downward side 112 on the floor 160 side as well.

外装材１００で外装したワイヤハーネスを湾曲して配索するスライドシート下面とフロア側の間の配索スペースの上下高さＨは狭いため、外装材１００に上向きの反りが発生するとスライドシートの下面と接触する恐れがあり、下向きの反りが発生するとフロア側部材と接触する恐れがある。このように、外装材１００が周辺部材と接触し、接触した辺が移動不可となると、ワイヤハーネスはスライドシートに追従できなくなるか、外装材１００が破損することになる。
さらに、屈曲時に外周側の切込ラインＫが大きな隙間となり、該隙間から埃、砂等の異物が侵入しやすくなる問題もある。 Since the vertical height H of the routing space between the lower surface of the slide sheet that curves and routes the wire harness sheathed with the exterior material 100 and the floor side is narrow, if the upward warp occurs in the exterior material 100, the lower surface of the slide sheet If there is a downward warping, there is a risk of contact with the floor side member. As described above, when the exterior material 100 comes into contact with the peripheral member and the contacted side cannot move, the wire harness cannot follow the slide sheet or the exterior material 100 is damaged.
In addition, there is a problem that the outer peripheral cutting line K becomes a large gap when bent, and foreign matter such as dust and sand easily enters from the gap.

本発明は前記キャタピラ型の外装材において、屈曲可能とするための幅方向の切り込みを設けながら、該切り込みで分離された隣接辺の間の隙間を無くして、前記反りの発生を防止および異物侵入を防止できるようにすることを課題としている。 The present invention provides the caterpillar-type exterior material, while providing a cut in the width direction to enable bending, eliminating a gap between adjacent sides separated by the cut and preventing the occurrence of the warp and the entry of foreign matter. The problem is to be able to prevent this.

前記課題を解決するため、本発明は、ワイヤハーネスに外装するキャタピラ型の外装材であって、
縦壁の上下両端に上壁と下壁を連続させた断面コ字形状の第１部材と第２部材を備え、前記第１部材および第２部材の縦壁から上壁に連続する切り込みを長さ方向に間隔をあけて設け、かつ、前記第１部材の上壁の前記切り込みに挟まれた分割片の下面中央に下向きの段状突起を設けると共に、前記第２部材の上壁の前記切り込みに挟まれた分割片の上面中央に上向きの段状突起を設け、
前記第１部材と第２部材の縦壁同士を対向配置し、該第１部材の上壁の下面を前記第２部材の上壁に載せると共に、前記第１部材の下壁の上面に前記第２部材の下壁を載せて該第１、第２部材とで四角筒状に組み立て、かつ、
前記第１、第２部材の縦壁の前記切り込みを対向させずに長さ方向に交互に千鳥配置で位置させ、前記第１部材の上壁の前記切り込みに前記第２部材の上壁の前記段状突起を嵌合させて前記切り込みが開いて発生する隙間を前記第２部材の上壁で塞ぐようにし、かつ、前記第１部材の上壁の下向きの前記段状突起を第２部材の上壁の前記切り込みに嵌合させる構成としていることを特徴とするワイヤハーネス用の外装材を提供している。 In order to solve the above-mentioned problem, the present invention is a caterpillar type exterior material to be sheathed on a wire harness,
A first member and a second member having a U-shaped cross section in which an upper wall and a lower wall are continuous at both upper and lower ends of the vertical wall, and a long cut is formed from the vertical wall of the first member and the second member to the upper wall. A stepped protrusion is provided at the center of the lower surface of the divided piece that is provided at an interval in the vertical direction and is sandwiched between the cuts in the upper wall of the first member, and the cut in the upper wall of the second member An upward stepped protrusion is provided at the center of the upper surface of the split piece sandwiched between
The vertical walls of the first member and the second member are opposed to each other, the lower surface of the upper wall of the first member is placed on the upper wall of the second member, and the upper surface of the lower wall of the first member is Put the lower wall of two members and assemble it into a square cylinder with the first and second members, and
The notches of the vertical walls of the first and second members are positioned in a staggered arrangement alternately in the length direction without facing each other, and the notches of the upper wall of the second member are placed in the notches of the upper wall of the first member. A stepped protrusion is fitted to close the gap generated by the opening of the notch with the upper wall of the second member, and the stepped protrusion downward of the upper wall of the first member is connected to the second member. An exterior material for a wire harness is provided that is configured to be fitted into the notch of the upper wall.

前記第１部材および第２部材は樹脂成形品からなり、ワイヤハーネスの電線群を集束保護する必要がある外装領域に連続して外装できる長さを有するものとしている。ワイヤハーネスの電線群は第２部材の縦壁と対向する開口から横入れして挿通し、その後、該第２部材に第１部材を組み合わせて四角筒とし、第１、第２部材の対向する縦壁と上下に重なる上壁および下壁で挿通する電線群を囲んでいる。第１部材と第２部材は長さ方向の両端で引き出されるワイヤハーネスの電線群とテープ巻き固着して、四角筒に組み立てた第１部材と第２部材とを連結固着すると共に、該第１、第２部材と電線群も固着している。即ち、長さ方向の両端を除く部分では、第１部材と第２部材とはテープ巻き等で連結固着しておらず前記切り込みにより分割片を設けることで屈曲自在の機能を持たせている。 The first member and the second member are made of a resin molded product, and have a length capable of being continuously sheathed in an exterior region where it is necessary to focus and protect the electric wire group of the wire harness. The wire group of the wire harness is inserted horizontally through the opening facing the vertical wall of the second member, and then the first member is combined with the second member to form a square tube, and the first and second members face each other. It encloses a group of wires inserted through the upper and lower walls that overlap the vertical wall. The first member and the second member are taped and fixed to the wire harness of the wire harness drawn out at both ends in the length direction, and the first member and the second member assembled into a square tube are connected and fixed, and the first member The second member and the wire group are also fixed. That is, in the portion excluding both ends in the length direction, the first member and the second member are not connected and fixed by tape winding or the like, and have a function of being bent by providing the divided pieces by the cut.

前記本発明のキャタピラ型の外装材では、第１部材および第２部材とも長さ方向に間隔をあけて上壁から縦壁へと連続する切り込みを幅方向に設け、該第１、第２部材を組み合わせて四角筒とした状態で、上壁および左右縦壁の３辺の切り込みで長さ方向に分割片を連続させ、下壁の１辺は切り込みのない連続壁としているため、前記特許文献１で提示したキャタピラ型の外装材と同様に上壁が外周側となって屈曲できるが、内周側の下壁は屈曲できず、屈曲方向を規制できるキャタピラ型の外装材とすることができる。 In the caterpillar-type exterior material of the present invention, both the first member and the second member are provided in the width direction with continuous cuts from the upper wall to the vertical wall at intervals in the length direction. In a state in which a rectangular cylinder is combined, the split pieces are continuous in the length direction by cutting three sides of the upper wall and the left and right vertical walls, and one side of the lower wall is a continuous wall having no cuts. As in the caterpillar type exterior material presented in 1, the upper wall can be bent on the outer peripheral side, but the lower wall on the inner peripheral side cannot be bent, and a caterpillar type external material that can regulate the bending direction can be obtained. .

また、本発明の外装材では、外周側となる第１部材の上壁の切り込みに下面から第２部材の段状突起を嵌合することで、前記切り込みにより生じる隙間を下面側の第２部材の上壁で塞いで無くしている。よって、ワイヤハーネスおよび外装材が湾曲し、切り込みを挟む分割片が離れて隙間ができても、前記段状突起を突出した第２部材の上壁で前記隙間の下面を閉鎖し、上面側の第１部材の切り込みを挟む上壁の両側の分割片の近接側が下向きに傾斜するのを防止できる。その結果、前記図９（Ｂ）（Ｃ）に示すスライド時に反り上がり発生するのを防止できる。 Moreover, in the exterior material of this invention, the clearance gap which arises by the said notch | incision is made into the 2nd member of a lower surface side by fitting the step-shaped protrusion of a 2nd member from the lower surface to the notch of the upper wall of the 1st member which becomes an outer peripheral side. The upper wall is closed and lost. Therefore, even if the wire harness and the exterior material are curved and the split pieces sandwiching the notch are separated and a gap is formed, the lower surface of the gap is closed by the upper wall of the second member protruding the stepped protrusion, It can prevent that the proximity | contact side of the division piece of the both sides of the upper wall which pinches | interposes the notch | incision of a 1st member inclines below. As a result, it is possible to prevent warping from occurring during the slide shown in FIGS. 9B and 9C.

前記本発明のワイヤハーネス用外装材は、自動車に搭載するスライドシートとフロアとの間に配索するスライドシート用のワイヤハーネスの外装材として好適に用いられる。
具体的には、前記スライドシート用のワイヤハーネスは、フロアハーネスの幹線から分岐する枝線からなる電線群、前記枝線にコネクタ接続するを電線群、あるいは前記スライドシート内に配索するシートハーネスからフロア側へ延在させて前記フロアハーネスとコネクタ接続する電線群からなり、スライドシートの下面と車室床面材下方のフロアパネルとの間に前記外装材で外装した状態で横向きＪ形状に配索される。詳細には、スライドシート側との固定点からスライドシート下面に引き出される外装材は、その上壁をスライドシートの下面に沿って後方へと水平方向に延在し、後端側で下方にＵ字状に湾曲した後に前方へ水平に延在し、その先端をフロア側に固定している。 The wire harness exterior material of the present invention is suitably used as an exterior material for a wire harness for a slide sheet routed between a slide sheet mounted on an automobile and a floor.
Specifically, the wire harness for the slide seat is an electric wire group consisting of branch lines branching from a trunk line of a floor harness, an electric wire group for connecting a connector to the branch line, or a seat harness routed in the slide seat It is composed of a group of wires that extend from the floor to the floor harness and is connected to the floor harness, and has a lateral J shape with the exterior covering between the lower surface of the slide seat and the floor panel below the passenger compartment floor covering. Routed. Specifically, the exterior material drawn out from the fixed point on the slide sheet side to the lower surface of the slide sheet extends in the horizontal direction rearward along the lower surface of the slide sheet, and U on the rear end side. After curving in a letter shape, it extends horizontally forward and its tip is fixed to the floor.

前記のように、スライドシートの下面に沿って配索するワイヤハーネスを前記外装材で外装すると、スライドシートの下面に近接して配置される外装材の上壁を直線に保持でき、反り返って上方へ突出して、スライドシートの下面と外装材が接触するのを防止できる。よって、スライドシートの移動にワイヤハーネスをスムーズに追従でき、かつ、スライドシート下方の狭いスペースにワイヤハーネスを配索することができる。 As described above, when the wire harness routed along the lower surface of the slide sheet is packaged with the exterior material, the upper wall of the exterior material arranged close to the lower surface of the slide sheet can be held in a straight line and warped upward. It can protrude to and it can prevent that the lower surface of a slide sheet and an exterior material contact. Therefore, the wire harness can smoothly follow the movement of the slide sheet, and the wire harness can be routed in a narrow space below the slide sheet.

本発明のワイヤハーネス用の外装材は、第１部材および第２部材とも長さ方向に間隔をあけて上壁から縦壁へと連続する切り込みを幅方向に設け、該第１、第２部材を組み合わせて四角筒とした状態で、上壁および左右縦壁の３辺の切り込みで長さ方向に分割片を連続させ、下壁の１辺は切り込みのない連続壁としているため、上壁が外周側となって屈曲できるが、内周側の下壁は屈曲できず、屈曲方向を規制できるキャタピラ型の外装材とすることができる。
また、本発明の外装材では、外周側となる第１部材の上壁の切り込みに下面から第２部材の段状突起を嵌合することで、前記切り込みにより生じる隙間を下面側の第２部材の上壁で塞いで無くしている。よって、ワイヤハーネスおよび外装材が湾曲し、切り込みを挟む分割片が離れて隙間ができても、前記段状突起を突出した第２部材の上壁で前記隙間の下面を閉鎖し、上面側の第１部材の切り込みを挟む上壁の両側の分割片の近接側が下向きに傾斜するのを防止できる。その結果、スライド時に反り上がりが発生するのを防止できる。かつ、切り込みにより空隙が発生しないため、埃や砂等の異物の侵入を防止できる。 An exterior material for a wire harness according to the present invention includes a first member and a second member both of which are provided in the width direction with continuous cuts from the upper wall to the vertical wall at intervals in the length direction. In a state where a square cylinder is combined, the divided pieces are continuous in the length direction by cutting three sides of the upper wall and the left and right vertical walls, and one side of the lower wall is a continuous wall without cutting, so the upper wall is Although it can be bent on the outer peripheral side, the lower wall on the inner peripheral side cannot be bent, and a caterpillar type exterior material that can regulate the bending direction can be obtained.
Moreover, in the exterior material of this invention, the clearance gap which arises by the said notch | incision is made into the 2nd member of a lower surface side by fitting the step-shaped protrusion of a 2nd member from the lower surface to the notch of the upper wall of the 1st member which becomes an outer peripheral side. The upper wall is closed and lost. Therefore, even if the wire harness and the exterior material are curved and the split pieces sandwiching the notch are separated and a gap is formed, the lower surface of the gap is closed by the upper wall of the second member protruding the stepped protrusion, It can prevent that the proximity | contact side of the division piece of the both sides of the upper wall which pinches | interposes the notch | incision of a 1st member inclines below. As a result, it is possible to prevent warping from occurring during sliding. In addition, since no gap is generated by cutting, entry of foreign matter such as dust and sand can be prevented.

本発明のワイヤハーネス用の外装材を示し、（Ａ）は分解斜視図、（Ｂ）は組み立てた状態の斜視図である。The exterior material for wire harnesses of this invention is shown, (A) is an exploded perspective view, (B) is a perspective view of the assembled state. （Ａ）は外装材の第１部材の一部正面図、（Ｂ）は第２部材の一部正面図、（Ｃ）は図１（Ｂ）の正面図である。(A) is a partial front view of the first member of the exterior material, (B) is a partial front view of the second member, and (C) is a front view of FIG. 1 (B). 図２（Ｃ）の拡大図である。FIG. 3 is an enlarged view of FIG. （Ａ）は前記外装材にワイヤハーネスの電線群を挿通している状態の一部斜視図、（Ｂ）は全体正面図である。(A) is a partial perspective view of the state which has penetrated the electric wire group of a wire harness to the said exterior material, (B) is a whole front view. （Ａ）は前記外装材が屈曲した状態を示す一部斜視図、（Ｂ）は（Ａ）の要部拡大図である。(A) is a partial perspective view which shows the state which the said exterior material bent, (B) is a principal part enlarged view of (A). スライドシート用のワイヤハーネスを前記外装材で外装した状態を示し、（Ａ）は概略全体構成図、（Ｂ）は一部拡大斜視図である。The state which coat | covered the wire harness for slide sheets with the said exterior material is shown, (A) is a schematic whole block diagram, (B) is a partially expanded perspective view. （Ａ）〜（Ｄ）は従来例を示す図面である。(A)-(D) are drawings which show a prior art example. 前記従来例の外装材で外装したワイヤハーネスの配索例を示す図面である。It is drawing which shows the wiring example of the wire harness coat | covered with the exterior material of the said prior art example. （Ａ）〜（Ｃ）は前記従来の配索例で生じる問題点を説明する図面である。(A)-(C) are drawings explaining the problem which arises in the said conventional wiring example.

以下、本発明のワイヤハーネス用の外装材の実施形態を図面を参照して説明する。
本発明の外装材は、図１に示すキャタピラ型の外装材１からなる。該外装材１は、縦壁の上下両端に上壁と下壁を連続させたコ字形状の第１部材２と第２部材３とを組み合わせて四角筒とし、該四角筒の内部空間をワイヤハーネス２００（図４に示す）を構成する電線群の挿通路としている。 Hereinafter, an embodiment of an exterior material for a wire harness of the present invention will be described with reference to the drawings.
The exterior material of this invention consists of the caterpillar type exterior material 1 shown in FIG. The exterior material 1 is formed by combining a U-shaped first member 2 and a second member 3 in which an upper wall and a lower wall are continuous at both upper and lower ends of a vertical wall to form a square cylinder, and the internal space of the square cylinder is a wire. It is set as the insertion path of the electric wire group which comprises the harness 200 (shown in FIG. 4).

第１部材２は、縦壁２ａの上端から上壁２ｂ、下端から下壁２ｃが横向きに突設したコ字形状である。縦壁２ａに長さ方向Ｘに一定間隔をあけて上下全長に切り込み２ｄを設け、該切り込み２ｄの上端に連続させて上壁２ｂの突出端へと幅方向Ｙの切り込み２ｅを設けている。即ち、切り込み２ｄと２ｅとからなる連続したＬ形状の切り込みを縦壁２ａから上壁２ｂにかけて設けている。これにより、第１部材２の上壁２ｂは切り込み２ｅを挟む分割片２ｆが長さ方向に並設し、各分割片２ｆは縦壁２ａの切り込み２ｄで分割された分割片２ｇにそれぞれ連続する。即ち、分割片２ｆ、２ｇが連続したＬ字片が長さ方向に並ぶ形状としている。また、上壁２ｂの各分割片２ｆの下面には、その長さ方向の中央位置で段状突起２ｋを切り込み２ｅと平行に突設している。 The first member 2 has a U-shape in which an upper wall 2b is projected from the upper end of the vertical wall 2a and a lower wall 2c is projected from the lower end in a lateral direction. The vertical wall 2a is provided with a notch 2d in the entire length in the longitudinal direction X with a constant interval, and a notch 2e in the width direction Y is provided at the protruding end of the upper wall 2b so as to be continuous with the upper end of the notch 2d. That is, a continuous L-shaped cut made of the cuts 2d and 2e is provided from the vertical wall 2a to the upper wall 2b. As a result, the upper wall 2b of the first member 2 has the split pieces 2f sandwiching the notch 2e arranged in the length direction, and each split piece 2f is continuous with the split pieces 2g divided by the notch 2d of the vertical wall 2a. . In other words, L-shaped pieces having continuous pieces 2f and 2g are arranged in the length direction. Further, on the lower surface of each divided piece 2f of the upper wall 2b, a stepped protrusion 2k is provided in parallel with the notch 2e at the central position in the length direction.

第２部材３は、第１部材２と同様なコ字形状である。即ち、縦壁３ａの上端から上壁３ｂ、下端から下壁３ｃが横向きに突設している。縦壁３ａに長さ方向Ｘに一定間隔をあけて上下全長に切り込み３ｄを設け、該切り込み３ｄの上端に連続させて上壁３ｂの突出端へと切り込み３ｅを設けている。即ち、切り込み３ｄと３ｅとからなる連続したＬ形状の切り込みを縦壁３ａから上壁３ｂにかけて設けている。これにより、第２部材３の上壁３ｂは切り込み３ｅを挟む分割片３ｆが長さ方向に並び、各分割片３ｆは縦壁３ａの切り込み３ｄで分割された分割片３ｇにそれぞれ連続する。即ち、分割片３ｆ、３ｇが連続したＬ字片が長さ方向に並ぶ形状としている。また、上壁３ｂの各分割片３ｆの上面には、その長さ方向の中央位置で段状突起３ｋを切り込み３ｅと平行に突設している。 The second member 3 has a U shape similar to that of the first member 2. That is, the upper wall 3b extends from the upper end of the vertical wall 3a, and the lower wall 3c protrudes from the lower end in the horizontal direction. A notch 3d is provided in the vertical wall 3a at a certain distance in the longitudinal direction X at the entire length, and a notch 3e is provided at the protruding end of the upper wall 3b so as to be continuous with the upper end of the notch 3d. That is, a continuous L-shaped cut made of the cuts 3d and 3e is provided from the vertical wall 3a to the upper wall 3b. As a result, the upper wall 3b of the second member 3 has divided pieces 3f sandwiching the cut 3e in the length direction, and each divided piece 3f is continuous with the divided piece 3g divided by the cut 3d of the vertical wall 3a. That is, the L-shaped pieces in which the divided pieces 3f and 3g are continuous are arranged in the length direction. Further, on the upper surface of each divided piece 3f of the upper wall 3b, a stepped protrusion 3k is provided in parallel with the cut 3e at the center position in the length direction.

第１、第２部材２、３の下壁２ｃ、３ｃには切り込みを設けず、平板状に連続させている。また、縦壁３ａに設けた切り込み３ｄの下端に小円３ｍを設け、切り込み３ｄの先端からの亀裂発生を防止している。 The lower walls 2c and 3c of the first and second members 2 and 3 are not provided with a cut and are continued in a flat plate shape. In addition, a small circle 3m is provided at the lower end of the cut 3d provided in the vertical wall 3a to prevent cracks from occurring at the tip of the cut 3d.

前記第１部材２の切り込み２ｄ、２ｅおよび第２部材３の切り込み３ｄ、３ｅの幅寸法ａは約１ｍｍとしている。また、第１、第２部材２、３の段状突起２ｋ、３ｋの幅ｂは前記幅ａより僅かに小さくし、切り込み２ｅに段状突起３ｋ、切り込み３ｅに段状突起２ｋを挿入すると、隙間なく嵌合できるようにしている。 The width dimension a of the notches 2d and 2e of the first member 2 and the notches 3d and 3e of the second member 3 is about 1 mm. Further, the width b of the stepped protrusions 2k and 3k of the first and second members 2 and 3 is slightly smaller than the width a, and when the stepped protrusion 3k is inserted into the notch 2e and the stepped protrusion 2k is inserted into the notch 3e, It can be fitted with no gap.

また、前記第２部材３の縦壁３ａの上下寸法は第１部材２の縦壁２ａの上下寸法より小さくし、図１（Ｂ）に示すように、前記第１部材２と第２部材３の縦壁２ａと３ａを対向配置し、第１部材２の上壁２ｂの下面を第２部材３の上壁３ｂに載せると共に、第１部材２の下壁２ｃの上面に第２部材３の下壁３ｃを載せて、第１、第２部材２、３を四角筒状に組み立てられるようにしている。 The vertical dimension of the vertical wall 3a of the second member 3 is smaller than the vertical dimension of the vertical wall 2a of the first member 2, and the first member 2 and the second member 3 as shown in FIG. The vertical walls 2a and 3a of the first member 2 are opposed to each other, the lower surface of the upper wall 2b of the first member 2 is placed on the upper wall 3b of the second member 3, and the upper surface of the lower wall 2c of the first member 2 is The lower wall 3c is placed so that the first and second members 2 and 3 can be assembled into a square tube shape.

かつ、組み立て時に、第１部材２の縦壁２ａの切り込み２ｄと第２部材３の縦壁３ａの切り込み３ｄを対向させず、長さ方向Ｘに交互に千鳥配置で位置させ、第１部材２の上壁２ｂの切り込み２ｅに第２部材３の上向きの段状突起３ｋを挿入し、第２部材３の上壁３ｂの切り込み３ｅに第１部材２の下向きの段状突起２ｋを挿入している。このように、四角筒状に組み立てる外装材１の外周側となる上面の切り込み２ｅに段状突起３ｋが嵌合して、図２に示すように、段状突起３ｋを挟む上面の分割片２ｆが直線状となるように保持している。 At the time of assembling, the notches 2d of the vertical wall 2a of the first member 2 and the notches 3d of the vertical wall 3a of the second member 3 are positioned so as to be alternately arranged in a staggered manner in the length direction X, so that the first member 2 An upward stepped protrusion 3k of the second member 3 is inserted into the notch 2e of the upper wall 2b, and a downward stepped protrusion 2k of the first member 2 is inserted into the notch 3e of the upper wall 3b of the second member 3. Yes. In this way, the stepped protrusion 3k is fitted into the notch 2e on the upper surface which is the outer peripheral side of the exterior material 1 assembled into a square tube shape, and as shown in FIG. 2, the divided piece 2f on the upper surface sandwiching the stepped protrusion 3k. Is held in a straight line.

前記第１部材２と第２部材３とから組み立てる外装材１は、ワイヤハーネス２００の電線群を集束保護する必要がある外装領域に連続して外装できる長さとしている。
図４に示すように、外装材１で複数の電線からなるワイヤハーネス２００を外装する作業は、まず、第３部材２に対して縦壁３ａと対向する開口からワイヤハーネス２００の電線を長さ方向に対して直交方向から横入れして、長尺な第２部材３の内部にワイヤハーネス２００を挿通する。ついで、該第２部材３に第１部材２を外嵌して組み合わせ、四角筒とし、第１、第２部材２、３の対向する縦壁２ａ、３ａと上下に重なる上壁２ｂと３ｂおよび下壁２ｃと３ｃでワイヤハーネス２００の電線群を囲んでいる。 The exterior material 1 assembled from the first member 2 and the second member 3 has a length that allows the exterior of the wire group 200 to be continuously exteriorized in an exterior region that needs to be focused and protected.
As shown in FIG. 4, the operation of sheathing the wire harness 200 composed of a plurality of wires with the sheathing material 1 is performed by first extending the wire of the wire harness 200 from the opening facing the vertical wall 3 a with respect to the third member 2. The wire harness 200 is inserted into the interior of the long second member 3 in a direction perpendicular to the direction. Next, the first member 2 is externally fitted and combined with the second member 3 to form a square cylinder, and the upper and lower walls 2b and 3b that vertically overlap the opposing vertical walls 2a and 3a of the first and second members 2 and 3; The lower walls 2c and 3c surround the wire group of the wire harness 200.

図４（Ｂ）に示すように、第１部材２と第２部材３は長さ方向Ｘの両端で引き出されるワイヤハーネス２００の電線群と粘着テープ３０を巻き付けてテープ巻き固着している。これにより、四角筒に組み立てた第１部材２と第２部材３とを連結固着すると共に、該第１、第２部材２、３とワイヤハーネス２００の電線群も固着している。 As shown in FIG. 4 (B), the first member 2 and the second member 3 are wound around a wire group of the wire harness 200 drawn out at both ends in the length direction X and the adhesive tape 30 and fixed with tape. As a result, the first member 2 and the second member 3 assembled in the square tube are connected and fixed, and the first and second members 2 and 3 and the wire group of the wire harness 200 are also fixed.

即ち、長さ方向の両端を除く部分では、第１部材２と第２部材３とはテープ巻き等で連結固着しておらず、前記切り込み２ｄ、２ｅ、３ｄ、３ｅにより長さ方向Ｘに上壁を分割片２ｆ、３ｆで構成し、縦壁を分割片２ｇ、３ｇで構成している。 That is, in the portion excluding both ends in the length direction, the first member 2 and the second member 3 are not connected and fixed by tape winding or the like, and are moved upward in the length direction X by the notches 2d, 2e, 3d, and 3e. The wall is constituted by divided pieces 2f and 3f, and the vertical wall is constituted by divided pieces 2g and 3g.

前記構成とし、上壁を分割片３ｆ、２ｆを千鳥配置で上下に重ね、対向する左右縦壁を分割片２ｇ、３ｇで構成、下壁が切り込みが無い連続部から構成し、図３に示すように、上壁を外周とすると、図中、実線矢印で示すように下向きに曲がるが、点線矢印で示す上向きには曲がらず、外装材１の屈曲方向は一方向に規制される。 The upper wall is composed of the divided pieces 3f and 2f which are vertically stacked in a staggered arrangement, the opposite left and right vertical walls are composed of the divided pieces 2g and 3g, and the lower wall is composed of a continuous portion having no cut, as shown in FIG. Thus, when the upper wall is the outer periphery, it bends downward as indicated by a solid arrow in the figure, but does not bend upward as indicated by a dotted arrow, and the bending direction of the exterior material 1 is restricted to one direction.

また、外装材１は、外周側の上面となる第１部材２の上壁２ｂの切り込み２ｅに下側から第２部材３の段状突起３ｋを挿入して嵌合することで、切り込み２ｅにより分割片２ｆの間に隙間は発生せず、外装材１の上面は図３および図４（Ａ）に示すように直線に保持できる。 Moreover, the exterior material 1 inserts and fits the step-shaped protrusion 3k of the 2nd member 3 from the lower side to the notch 2e of the upper wall 2b of the 1st member 2 used as the upper surface of the outer peripheral side, By the notch 2e There is no gap between the divided pieces 2f, and the upper surface of the exterior material 1 can be held in a straight line as shown in FIGS. 3 and 4A.

一方、外装材１で外装するワイヤハーネス２００の上面が後端から下向きに曲がる力が作用すると、外装材１もワイヤハーネス２００の作動に追従し、図５に示すように、上壁を構成する上面側の上壁２ｂの切り込み２ｅ、下面側の上壁３ｂの切り込み３ｅが開き、隣接する分割片２ｆと２ｆの間、分割片３ｆと３ｆの間が広がる。この状態で、図５（Ｂ）に拡大して示すように、上面側の分割片２ｆと２ｆの間の中央に段状突起３ｋが位置すると共に、段状突起３ｋを挟む分割片３ｆの両側上面が位置し、隣接する分割片２ｆと２ｆの間の拡がった切り込み２ｅを下側の第２部材３の上壁３ｂの分割片３ｆで塞ぎ、空隙を発生させない。これにより、ワイヤハーネス２００の移動時に電線の反力等により、切り込み２ｅを挟む両側の分割片２ｆ、２ｆが前記図９（Ｂ）に示すように、切り込み２ｅに発生する空隙に向けて傾斜するように反り上がろうとしても、空隙が下側の分割片３ｆで塞がれるため、上側の分割片２ｆに反り上がりが発生するのを防止できる。かつ、屈曲時に空隙が発生しないため、空隙から埃や砂等の異物が外装材１の内部に侵入するのを防止できる。 On the other hand, when a force is applied to the upper surface of the wire harness 200 that is sheathed by the exterior material 1 to bend downward from the rear end, the exterior material 1 also follows the operation of the wire harness 200 and constitutes the upper wall as shown in FIG. The notch 2e in the upper wall 2b on the upper surface side and the notch 3e in the upper wall 3b on the lower surface side are opened, and the space between the adjacent divided pieces 2f and 2f and the space between the divided pieces 3f and 3f are widened. In this state, as shown in an enlarged view in FIG. 5 (B), the stepped protrusion 3k is located at the center between the divided pieces 2f and 2f on the upper surface side, and both sides of the divided pieces 3f sandwiching the stepped protrusion 3k. The upper surface is positioned, and the widened notch 2e between the adjacent divided pieces 2f and 2f is closed with the divided pieces 3f of the upper wall 3b of the lower second member 3, so that no gap is generated. Accordingly, the split pieces 2f and 2f on both sides sandwiching the notch 2e are inclined toward the gap generated in the notch 2e as shown in FIG. 9B due to the reaction force of the electric wire when the wire harness 200 is moved. Thus, even if it is going to be warped up, since the gap is closed by the lower divided piece 3f, it is possible to prevent the upper divided piece 2f from warping. In addition, since no gap is generated at the time of bending, it is possible to prevent foreign matters such as dust and sand from entering the exterior material 1 from the gap.

前記外装材１で外装したワイヤハーネス２００を、図６（Ａ）に示すように、自動車に搭載するスライドシート１５０に配索する場合に好適に用いられる。
前記ワイヤハーネス２００はフロアハーネスの幹線から分岐するワイヤハーネスで、該ワイヤハーネス２００の先端をスライドシート１５０の下面に固定し、車室床材１７０の下方で前後方向に直線状に配索した後に後端側で下向きに屈曲した後に前方へ直線状に配索し、言わば、横向きＵ形状に配索して、フロアパネル１６０に固定している。 As shown in FIG. 6 (A), the wire harness 200 sheathed with the exterior material 1 is suitably used when being routed on a slide sheet 150 mounted on an automobile.
The wire harness 200 is a wire harness that branches off from the trunk line of the floor harness. After the front end of the wire harness 200 is fixed to the lower surface of the slide seat 150 and routed linearly in the front-rear direction below the vehicle floor material 170. After being bent downward on the rear end side, it is routed in a straight line forward, that is, it is routed in a U shape in the lateral direction and fixed to the floor panel 160.

スライドシート１５０の前後移動に追従して、外装材１で外装したワイヤハーネス２００の上面は車室床材１７０の下面に沿って前後方向に移動し、ワイヤハーネス２００の下面はフロアパネル１６０に沿って前後方向に移動する。この移動時に外装材１の屈曲面に前記図４に示すように切り込み２ｅをはさむ両側の分割片２ｆに反りが発生するのを防止している。よって、外装材１の上面側に反り上がりが発生せず直線に保持できるため、車室床材１７０への接触およびフロアパネル１６０への接触を防止できる。 Following the back-and-forth movement of the slide sheet 150, the upper surface of the wire harness 200 covered with the exterior material 1 moves in the front-rear direction along the lower surface of the passenger compartment floor material 170, and the lower surface of the wire harness 200 extends along the floor panel 160. To move back and forth. During this movement, warpage is prevented from occurring in the split pieces 2f on both sides of the cut surface 2e sandwiching the notch 2e as shown in FIG. Therefore, since the upper surface side of the exterior material 1 does not warp and can be held in a straight line, the contact with the passenger compartment floor material 170 and the contact with the floor panel 160 can be prevented.

本発明の外装材１は前記スライドシートに配索するワイヤハーネスの外装材に限定されず、他の箇所に屈曲自在に配索されるワイヤハーネスの外装材としても好適に利用できる。 The exterior material 1 of this invention is not limited to the exterior material of the wire harness routed to the said slide sheet, It can utilize suitably also as an exterior material of the wire harness routed flexibly to another location.

１外装材
２第１部材
３第２部材
２ａ、３ａ縦壁
２ｂ、３ｂ上壁
２ｃ、３ｃ下壁
２ｄ、２ｅ、３ｄ、３ｅ切り込み
２ｆ、２ｇ、３ｆ、３ｇ分割片
２ｋ、３ｋ段状突起
１５０スライドシート
１６０フロアパネル
１７０車室床材
２００ワイヤハーネス DESCRIPTION OF SYMBOLS 1 Exterior material 2 1st member 3 2nd member 2a, 3a Vertical wall 2b, 3b Upper wall 2c, 3c Lower wall 2d, 2e, 3d, 3e Cut 2f, 2g, 3f, 3g Dividing piece 2k, 3k Stepped protrusion 150 Slide sheet 160 Floor panel 170 Car floor material 200 Wire harness

Claims

ワイヤハーネスに外装するキャタピラ型の外装材であって、
縦壁の上下両端に上壁と下壁を連続させた断面コ字形状の第１部材と第２部材を備え、前記第１部材および第２部材の縦壁から上壁に連続する切り込みを長さ方向に間隔をあけて設け、かつ、前記第１部材の上壁の前記切り込みに挟まれた分割片の下面中央に下向きの段状突起を設けると共に、前記第２部材の上壁の前記切り込みに挟まれた分割片の上面中央に上向きの段状突起を設け、
前記第１部材と第２部材の縦壁同士を対向配置し、該第１部材の上壁の下面を前記第２部材の上壁に載せると共に、前記第１部材の下壁の上面に前記第２部材の下壁を載せて該第１、第２部材とで四角筒状に組み立て、かつ、
前記第１、第２部材の縦壁の前記切り込みを対向させずに長さ方向に交互に千鳥配置で位置させ、前記第１部材の上壁の前記切り込みに前記第２部材の上壁の前記段状突起を嵌合させて前記切り込みが開いて発生する隙間を前記第２部材の上壁で塞ぐようにし、かつ、前記第１部材の上壁の下向きの前記段状突起を第２部材の上壁の前記切り込みに嵌合させる構成としていることを特徴とするワイヤハーネス用の外装材。 It is a caterpillar type exterior material to be sheathed on a wire harness,
A first member and a second member having a U-shaped cross section in which an upper wall and a lower wall are continuous at both upper and lower ends of the vertical wall, and a long cut is formed from the vertical wall of the first member and the second member to the upper wall. A stepped protrusion is provided at the center of the lower surface of the divided piece that is provided at an interval in the vertical direction and is sandwiched between the cuts in the upper wall of the first member, and the cut in the upper wall of the second member An upward stepped protrusion is provided at the center of the upper surface of the split piece sandwiched between
The vertical walls of the first member and the second member are opposed to each other, the lower surface of the upper wall of the first member is placed on the upper wall of the second member, and the upper surface of the lower wall of the first member is Put the lower wall of two members and assemble it into a square cylinder with the first and second members, and
The notches of the vertical walls of the first and second members are positioned in a staggered arrangement alternately in the length direction without facing each other, and the notches of the upper wall of the second member are placed in the notches of the upper wall of the first member. A stepped protrusion is fitted to close the gap generated by the opening of the notch with the upper wall of the second member, and the stepped protrusion downward of the upper wall of the first member is connected to the second member. An exterior material for a wire harness, which is configured to be fitted into the notch of the upper wall.