JP7261132B6 - electric junction box - Google Patents

electric junction box Download PDF

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JP7261132B6
JP7261132B6 JP2019165626A JP2019165626A JP7261132B6 JP 7261132 B6 JP7261132 B6 JP 7261132B6 JP 2019165626 A JP2019165626 A JP 2019165626A JP 2019165626 A JP2019165626 A JP 2019165626A JP 7261132 B6 JP7261132 B6 JP 7261132B6
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fitting
rotation
fitting part
wall
edge
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JP2021044945A (en
JP7261132B2 (en
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翔 倉田
英樹 河村
稔 梅▲崎▼
純也 増田
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Yazaki Corp
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Description

本発明は、電気接続箱に関する。 The present invention relates to electrical junction boxes.

例えばヒューズやリレー等の電気部品を表面に着脱可能に装着する車載用の電気接続箱が知られている（特許文献１等参照）。この種の電気接続箱には、筐体等の内部に収容される電子部品の収容性を向上させるべく、電子部品が組付けられた接続体を筐体の接続体収容室に上下２段に重ねて配置したものが知られている。 For example, a vehicle-mounted electrical connection box is known in which electrical components such as fuses and relays are detachably mounted on the surface (see Patent Document 1, etc.). In this type of electrical connection box, in order to improve the accommodation of the electronic components housed inside the housing, the connecting body with the electronic components assembled is arranged in two stages, upper and lower, in the connecting body housing chamber of the housing. A stack arrangement is known.

下記の特許文献１には、電子部品及び電子部品の端子に対して電気的に接続される電線を組み付けた接続体と、複数の接続体を互いに間隔を空けた積層状態で収容及び保持する筐体と、を備えた電気接続箱が開示されている。筐体は、接続体を収容及び保持する接続体収容室が形成された収容部材を接続体の層毎に備え、それぞれの収容部材は、隣り合う層の間で、自らが収容及び保持している接続体と共に互いに着脱し得るよう構成されている。 Patent Document 1 below discloses a connection body in which electronic components and electric wires to be electrically connected to terminals of the electronic components are assembled, and a housing that accommodates and holds a plurality of connection bodies in a stacked state spaced apart from each other. An electrical junction box is disclosed that includes a body and a body. The housing includes, for each layer of the connection body, a housing member in which a connection body housing chamber for housing and holding the connection body is formed, and each housing member itself accommodates and holds the connection body between the adjacent layers. It is configured to be detachable from each other with the connecting body.

下層の接続体を収容する収容部材は、積層状態に無い電子部品や接続体等を収容及び保持するための収容室が一体に形成されており、上層の接続体を収容する収容部材（嵌合部品）を着脱し得るように保持する嵌合保持部が筐体の側面に区画形成されている。そして、上層の接続体を収容する収容部材は、該収容部材の外側面を形成する断面略Ｕ字形状の周壁を有し、周壁の両開口端縁が嵌合保持部における両側壁にそれぞれ対向するように組み付けられると共に、周壁の下端縁が嵌合保持部の上端縁（下層の接続体を収容する収容部材の上端縁）に対向するように組み付けられる。この際、上層の接続体を収容する収容部材は、周壁の開口端側を連結する内壁に設けられたガイド部及びロック部からなるロック機構と、嵌合保持部の内壁に設けられたガイド部及びロック部からなるロック機構とによって、下層の接続体に対する積層方向に嵌合されて互いに係合状態（ロック状態）になる。即ち、上層の接続体を収容する収容部材は、筐体の嵌合保持部に対して着脱可能に保持される。 The accommodation member that accommodates the lower-layer connection body is integrally formed with an accommodation chamber for accommodating and holding electronic components and connection bodies that are not in a stacked state. A fitting holding portion for detachably holding a part is formed on the side surface of the housing. The housing member for housing the upper-layer connecting body has a peripheral wall with a substantially U-shaped cross section forming the outer surface of the housing member, and both opening edges of the peripheral wall face both side walls of the fitting and holding portion, respectively. and the lower edge of the peripheral wall is assembled so as to face the upper edge of the fitting holding portion (the upper edge of the housing member that houses the lower-layer connector). At this time, the housing member for housing the upper-layer connecting body includes a lock mechanism including a guide portion and a lock portion provided on the inner wall connecting the opening end side of the peripheral wall, and a guide portion provided on the inner wall of the fitting holding portion. and a lock mechanism including a lock portion, they are engaged with each other (locked state) by being fitted in the stacking direction with respect to the connecting body of the lower layer. That is, the housing member that houses the upper-layer connection body is detachably held by the fitting holding portion of the housing.

特開２０１７－１２７０７８号公報JP 2017-127078 A

ところで、この種の電気接続箱では、上層の接続体を収容する収容部材における周壁の両開口端縁と嵌合保持部における両側壁とのそれぞれ対向部分には、水等の浸入を防ぐ止水構造が設けられることが望ましい。
例えば、図２１に示す収容部材５１０では、周壁５１１の両開口端縁５１２，５１３に沿って設けられ、嵌合保持部における対向する両側壁の側端縁（図示せず）をそれぞれ内外から覆う内側壁５１２ａ，５１３ａ及び外側壁５１２ｂ，５１３ｂを有する止水部５１４，５１５が設けられている。 By the way, in this type of electric junction box, the facing portions of both opening edges of the peripheral wall of the housing member for housing the upper connection body and both side walls of the fitting and holding portion are provided with a waterproofing material for preventing infiltration of water or the like. A structure is preferably provided.
For example, in the housing member 510 shown in FIG. 21, the housing member 510 is provided along both opening edges 512 and 513 of the peripheral wall 511, and covers the side edges (not shown) of the opposite side walls of the fitting and holding portion from inside and outside. Water stop portions 514, 515 having inner walls 512a, 513a and outer walls 512b, 513b are provided.

しかしながら、作業者側からは見えづらい嵌合合わせ部分における収容部材側のロック機構５２５（ガイド部５２１及びロック部５２３）と嵌合保持部側のロック機構（図示せず）を係合状態としつつ、周壁５１１の両開口端縁５１２，５１３における止水部５１４，５１５を嵌合保持部における対向する側壁の側端縁にそれぞれ嵌合させなければならない収容部材５１０の組付け作業は、作業性がよくなかった。 However, while the lock mechanism 525 (the guide portion 521 and the lock portion 523) on the housing member side and the lock mechanism (not shown) on the fitting holding portion side at the fitting portion that is hard to see from the operator side are engaged with each other, , the water stop portions 514 and 515 at both opening edges 512 and 513 of the peripheral wall 511 must be fitted to the side edges of the opposing side walls of the fitting and holding portion, respectively, to assemble the housing member 510. was not good.

また、止水部５１４，５１５における内側壁５１２ａ，５１３ａと外側壁５１２ｂ，５１３ｂとは、嵌合保持部における側壁の側端縁との間に止水構造（迷路構造）を構成するため、開口端縁５１２，５１３の高さ方向（図２１中、高さ方向）に沿ってそれぞれ設けられ、周壁５１１の開口端縁５１２，５１３の延出方向に沿って略平行にそれぞれ延出されている。ここで、周壁の一方の開口端縁５１２及び他方の開口端縁５１３が、延出方向が同じ角度（平行）に延出される場合には、嵌合保持部における側壁の先端側（前方側）から収容部材５１０の止水部５１４，５１５における内側壁５１２ａ，５１３ａと外側壁５１２ｂ，５１３ｂとを嵌挿することができる。 In addition, the inner walls 512a, 513a and the outer walls 512b, 513b of the water stop portions 514, 515 constitute a water stop structure (maze structure) between the side edges of the side walls of the fitting holding portion, so that the opening They are provided along the height direction of the edges 512 and 513 (the height direction in FIG. 21), and extend substantially parallel along the extending direction of the opening edges 512 and 513 of the peripheral wall 511. . Here, when one opening edge 512 and the other opening edge 513 of the peripheral wall are extended at the same angle (parallel), the front end side (front side) of the side wall in the fitting holding portion The inner walls 512a, 513a and the outer walls 512b, 513b of the water stop portions 514, 515 of the housing member 510 can be inserted through the holes.

しかしながら、周壁の一方の開口端縁及び他方の開口端縁が、延出方向が異なる角度に広がってそれぞれ延出される場合には、嵌合保持部における側壁の先端側から収容部材５１０を嵌合すると、少なくとも一方の内側壁５１２ａ，５１３ａが嵌合保持部における対応する側壁に干渉してしまう。そこで、嵌合保持部における側壁の上端側から収容部材５１０の止水部５１４，５１５における内側壁５１２ａ，５１３ａと外側壁５１２ｂ，５１３ｂとを嵌挿しなければならない。その結果、収容部材５１０は、嵌合保持部に対して周壁５１１の開口端縁５１２，５１３の高さに応じた嵌合ストロークの距離Ｓ２が必要になり、収容部材５１０の組付け自由度が低下するという問題もあった。 However, if one opening edge and the other opening edge of the peripheral wall extend at different angles in the extending direction, the housing member 510 is fitted from the tip end side of the side wall in the fitting holding portion. Then, at least one of the inner side walls 512a and 513a interferes with the corresponding side wall of the fitting holding portion. Therefore, the inner walls 512a and 513a and the outer walls 512b and 513b of the waterproof portions 514 and 515 of the housing member 510 must be fitted from the upper end side of the side walls of the fitting and holding portion. As a result, the housing member 510 requires a fitting stroke distance S2 corresponding to the height of the opening edges 512 and 513 of the peripheral wall 511 with respect to the fitting and holding portion, and the mounting freedom of the housing member 510 is increased. There was also the problem of lowering

本発明は上記状況に鑑みてなされたもので、その目的は、筐体の嵌合保持部に嵌合部品を容易に組付けることができる電気接続箱を提供することにある。 SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric connection box in which a fitting component can be easily assembled to a fitting holding portion of a housing.

本発明に係る上記目的は、下記構成により達成される。
（１） 電子部品と前記電子部品に電気的に接続される電線とが組付けられた嵌合部品と、前記嵌合部品を嵌合及び保持する嵌合保持部が上面と側面とに渡って開口された筐体と、前記嵌合保持部を開放して前記側面に形成された開口部の鉛直方向に沿う方向の回転受け縁部及び先端係合縁部と、前記嵌合部品に形成され、前記開口部に対する前記嵌合部品の開放位置で前記回転受け縁部に当接するとともに前記回転受け縁部を中心にこの周りを回ることで前記嵌合部品を旋回させる回転係合部と、前記回転受け縁部に形成され、前記回転受け縁部に沿う前記回転係合部の下方向の移動を旋回途中で規制するとともに前記嵌合部品の閉止位置では前記規制を解除する高さ出し突起と、前記筐体と前記嵌合部品との間に設けられ、前記規制が解除されて下降した前記嵌合部品を前記筐体に係合固定するロック部と、を備えることを特徴とする電気接続箱。 The above objects of the present invention are achieved by the following configurations.
(1) A fitting component in which an electronic component and an electric wire electrically connected to the electronic component are assembled, and a fitting holding portion for fitting and holding the fitting component extend over the upper surface and the side surface. a housing having an opening; a rotation receiving edge portion and a leading end engaging edge portion in a direction along the vertical direction of the opening formed in the side surface by opening the fitting and holding portion; a rotary engaging portion that abuts on the rotation receiving edge portion at the opening position of the fitting component with respect to the opening and rotates around the rotation receiving edge portion to rotate the fitting component; a heightening protrusion formed on the rotation receiving edge for restricting the downward movement of the rotation engaging portion along the rotation receiving edge during turning and releasing the restriction at the closed position of the fitting part; and a locking portion provided between the housing and the fitting part for engaging and fixing the fitting part, which has been lowered after the regulation is released, to the housing. box.

上記（１）の構成の電気接続箱によれば、筐体の嵌合保持部は、筐体の上面の一部と側面とを切り欠いて設けられている。この嵌合保持部には、嵌合部品が一体に嵌合及び保持される。嵌合部品は、電線に接続される電子部品を有している。
筐体は、嵌合保持部が設けられることにより側面に開口部が形成される。嵌合部品は、この開口部から嵌合保持部へ装着される。開口部が形成された側面は、この開口部を挟む両側縁が、鉛直方向に沿う方向の回転受け縁部及び先端係合縁部となる。嵌合部品は、これら回転受け縁部及び先端係合縁部の間に装着される。
組付け時、嵌合部品は、回転受け縁部の延在方向に直交する方向で移動され、開口部に対する嵌合部品の開放位置で回転係合部が回転受け縁部に当接される。即ち、嵌合部品は、回転係合部が平行移動されて回転受け縁部に当接する。回転受け縁部に当接した回転係合部は、回転受け縁部を中心にこの周りを回ることにより嵌合部品を旋回させる。水平方向へ旋回した嵌合部品は、回転半径外端（回転係合部と反対側の端）の回転先端部が、側面の先端係合縁部に係合して旋回が停止し、開口部を塞ぐ（即ち、嵌合する）。
このとき、回転係合部は、回転受け縁部に係合することにより、回転中心に直交する方向の移動が規制されながら回転受け縁部を中心にこの周りを回る。また、回転係合部は、回転受け縁部に沿う下方向の移動が、回転受け縁部に形成された高さ出し突起により規制される。この高さ出し突起による下方向の移動規制は、嵌合部品が開口部を塞ぐ閉止位置で解除される。高さ出し突起による下方向への規制が解除された嵌合部品は、所定の距離（組付ストローク）下降した後、ロック部が係合することにより、筐体に固定される。これにより、嵌合部品は、筐体への装着が完了する。
本構成の電気接続箱では、嵌合部品を筐体の嵌合保持部へ組み付ける際に、開口部の回転受け縁部に、嵌合部品の回転係合部を平行移動して当てることで、回転開始位置を位置決めできる。回転係合部を回転受け縁部にあてがった嵌合部品は、回転中心に直交する方向の移動が規制されながら旋回可能となる。即ち、嵌合部品は、旋回方向の終端が閉止位置となる旋回軌道で旋回がガイドされる。
また、嵌合部品は、高さ出し突起に回転係合部が当たることにより下方向の移動が規制される。即ち、嵌合部品は、回転受け縁部と高さ出し突起とにあてがうことにより、開口部に嵌合する位置への旋回がガイドされる。従来構造のように、嵌合部品を筐体の上方より嵌合保持部へ落とし込んで装着する必要がない。このため、電気接続箱の上方に、嵌合部品を装着するための、嵌合部品の全高に相当する大きな作業空間を確保する必要がない。
電気接続箱は、高さ出し突起による規制が解除されてからロック部が係合する比較的に短い組付ストロークの移動で、組付けを行うことができる。電気接続箱は、組付ストロークが短くなることにより、小さな作業スペースで組付けが可能になるとともに、嵌合部品に接続される電線の余長も短くすることができる。
また、嵌合部品は、回転係合部を、筐体の回転受け縁部に平行移動して当てれば位置決めできる。そこで、仮に視認が困難なエンジンルーム奥側等の作業空間であっても、回転開始位置に容易に位置決めすることができる。回転受け縁部に回転係合部を当接した嵌合部品は、高さ出し突起に当たるまで下降させた後、回転受け縁部を中心にこの周りを旋回するのみで開口部に嵌合するための閉止位置まで確実に移動させることができる。
そして、電気接続箱は、開口部に嵌合する閉止位置まで嵌合部品が旋回されると、高さ出し突起による下方向の規制が解除される。これにより、嵌合部品が正規の閉止位置に取り付けられたことを二重に確認することができる。高さ出し突起による下方向の規制が解除された嵌合部品は、そのまま下方向へ組付ストロークだけ移動するのみでロック部が係合して筐体への固定が完了する。
その結果、電気接続箱によれば、筐体の嵌合保持部に、嵌合部品を容易に、しかも、確実に組付けることができる。 According to the electrical connection box having the configuration (1) above, the fitting holding portion of the housing is provided by cutting out a part of the upper surface and the side surface of the housing. A fitting component is integrally fitted and held in the fitting holding portion. The mating part has an electronic part that is connected to the wire.
The housing is formed with an opening on the side surface by providing the fitting holding portion. The fitting part is attached to the fitting holding part through this opening. As for the side surface on which the opening is formed, both side edges sandwiching the opening serve as the rotation receiving edge and the tip engaging edge in the vertical direction. A fitting is mounted between the rotation receiving edge and the leading engagement edge.
During assembly, the fitting part is moved in a direction perpendicular to the direction in which the rotation receiving edge extends, and the rotation engaging portion is brought into contact with the rotation receiving edge at the opening position of the fitting part with respect to the opening. That is, the fitting part is brought into contact with the rotation receiving edge by translation of the rotation engaging portion. The rotation engaging portion in contact with the rotation receiving edge rotates the fitting component around the rotation receiving edge. In the fitting part turned in the horizontal direction, the rotation tip at the outer end of the rotation radius (the end opposite to the rotation engagement part) engages with the tip engagement edge on the side surface, stopping the rotation and opening the opening. block (i.e., fit).
At this time, the rotation engaging portion revolves around the rotation receiving edge while being restricted from moving in the direction orthogonal to the center of rotation by being engaged with the rotation receiving edge. Further, the downward movement of the rotation engaging portion along the rotation receiving edge is restricted by the heightening projection formed on the rotation receiving edge. The restriction of downward movement by the heightening protrusion is released at the closed position where the fitting part closes the opening. The fitting part, whose downward restriction by the heightening projection is released, descends by a predetermined distance (assembly stroke), and then is fixed to the housing by engaging the lock part. As a result, the fitting component is completely attached to the housing.
In the electrical connection box of this configuration, when the fitting part is assembled to the fitting holding part of the housing, the rotation engaging part of the fitting part is moved parallel to the rotation receiving edge of the opening, The rotation start position can be positioned. The fitting part, in which the rotation engaging part is applied to the rotation receiving edge part, can turn while movement in the direction orthogonal to the center of rotation is restricted. That is, the fitting part is guided to turn on a turning track whose terminal end in the turning direction is at the closed position.
Further, the downward movement of the fitting part is restricted by the contact of the rotary engaging portion with the heightening protrusion. That is, the fitting part is guided to turn to the position where it fits into the opening by abutting the rotation receiving edge and the heightening projection. Unlike the conventional structure, it is not necessary to drop the fitting part into the fitting holding part from above the housing. Therefore, it is not necessary to secure a large working space corresponding to the total height of the fitting parts above the electric connection box for mounting the fitting parts.
The electrical connection box can be assembled by moving a relatively short assembly stroke in which the lock portion is engaged after the restriction by the heightening protrusion is released. By shortening the assembly stroke, the electric connection box can be assembled in a small work space and the excess length of the electric wire connected to the fitting parts can be shortened.
Further, the fitting part can be positioned by moving the rotation engaging portion parallel to the rotation receiving edge portion of the housing. Therefore, even in a work space such as the back side of the engine room where visual recognition is difficult, the rotation start position can be easily positioned. Since the fitting component with the rotation engaging portion in contact with the rotation receiving edge is lowered until it hits the heightening protrusion, it is fitted into the opening only by turning around the rotation receiving edge. can be reliably moved to the closed position.
When the fitting part of the electrical connection box is turned to the closed position where it fits into the opening, the downward restriction by the heightening projection is released. This makes it possible to double check that the fitting part is attached in the proper closed position. The fitting part whose downward restriction by the heightening protrusion is released is moved downward by the assembling stroke, and the locking part is engaged to complete the fixing to the housing.
As a result, according to the electrical connection box, the fitting parts can be easily and reliably assembled to the fitting holding portion of the housing.

（２） 前記回転係合部が、水平断面視略Ｖ字状に形成され、この略Ｖ字状の底部を前記回転受け縁部に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする上記（１）に記載の電気接続箱。 (2) The rotation engaging portion is formed in a substantially V-shaped horizontal cross-sectional view, and rotates around the rotation receiving edge with the bottom of the substantially V-shaped contacting the rotation receiving edge. The electrical connection box according to (1) above, characterized in that:

上記（２）の構成の電気接続箱によれば、嵌合部品の回転係合部が、水平断面視略Ｖ字状のＶ字回転係合部として形成される。Ｖ字回転係合部は、徐々に接近する先当て面と、後当て面とが底部で接続される。Ｖ字回転係合部が当たる回転受け縁部は、筐体の開口部に臨む側面の縁部となる。この縁部の端面は、傾斜面で形成することができる。この場合、Ｖ字回転係合部の底部は、この傾斜面の傾斜方向の長さに相当する平坦面を有する。回転受け縁部とＶ字回転係合部とは、先当て面が側面に当接した状態で、傾斜面が平坦面に当接する。Ｖ字回転係合部の場合、高さ出し突起は、主に先当て面の下端縁を載置するための載置片部となる。この載置片部は、嵌合部品が開口部を閉鎖する閉止位置まで旋回されると、Ｖ字回転係合部から外れる位置に設けられている。載置片部から下端が外れたＶ字回転係合部は、組付ストロークの下降が可能となる。
Ｖ字回転係合部は、先当て面が平面のため、回転受け縁部に当接する際の位置あわせが狙いやすくなる。Ｖ字回転係合部の先当て面を回転受け縁部にあてがった嵌合部品は、Ｖ字の交点を支点に旋回させて開口部に嵌合される。 According to the electrical junction box having the configuration (2) above, the rotary engaging portion of the fitting component is formed as a V-shaped rotary engaging portion having a substantially V-shaped horizontal cross section. In the V-shaped rotary engaging portion, the gradually approaching leading contact surface and the trailing contact surface are connected at the bottom. The rotation receiving edge with which the V-shaped rotation engaging portion abuts is the edge of the side facing the opening of the housing. The end face of this edge can be formed with an inclined surface. In this case, the bottom of the V-shaped rotary engaging portion has a flat surface corresponding to the length of the inclined surface in the inclined direction. The rotation-receiving edge portion and the V-shaped rotation engaging portion are such that the inclined surface abuts the flat surface while the front abutment surface abuts the side surface. In the case of the V-shaped rotary engaging portion, the heightening protrusion serves as a placing piece portion for placing mainly the lower edge of the front contact surface. This mounting piece is provided at a position where it is disengaged from the V-shaped rotary engaging portion when the fitting part is turned to a closing position that closes the opening. The V-shaped rotary engaging portion, the lower end of which is separated from the mounting piece portion, can be lowered in the assembly stroke.
Since the tip contact surface of the V-shaped rotation engaging portion is flat, it is easy to aim for alignment when contacting the rotation receiving edge portion. The fitting part, in which the front abutment surface of the V-shaped rotary engaging portion is applied to the rotation receiving edge, is rotated about the intersection of the V-shaped part as a fulcrum and fitted into the opening.

（３） 前記回転受け縁部が、水平断面視弧状の湾曲起立壁を有し、前記回転係合部が、前記回転受け縁部に沿う軸部を有し、前記軸部を前記湾曲起立壁の内側曲面に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする上記（１）に記載の電気接続箱。 (3) The rotation-receiving edge has an arc-shaped curved upright wall when viewed in horizontal cross-section, the rotation engaging part has a shaft along the rotation-receiving edge, and the shaft is the curved upright wall. The electric connection box according to the above (1), wherein the electric junction box rotates around the rotation receiving edge while coming into contact with the inner curved surface of the.

上記（３）の構成の電気接続箱によれば、筐体の側面に設けられる回転受け縁部が、水平断面視弧状の湾曲起立壁を有する。湾曲起立壁は、回転受け縁部に沿う方向の略円筒形状の下端を除く上側を略半円筒形状に切り欠いて形成される。切り欠かれていない下端は、略円筒形状が残ることにより段部が形成される。この段部は、高さ出し突起となる。即ち、湾曲起立壁は、上側を略半円筒形状に切り欠き、下端を略円筒形状に残すことにより、回転係合部が乗る形状を形成している。
一方、回転係合部は、湾曲起立壁の内側曲面に当接する軸部を有する。軸部は、回転受け縁部に軸線が沿う方向の軸となる。湾曲起立壁の内側曲面と、内側曲面に外周面を当接した軸部とは、一つの回転中心を中心とした同軸に配置される。軸部を湾曲起立壁の内側曲面に当てた嵌合部品は、この回転中心を中心に旋回される。この際、回転係合部は、下端が段部に乗った状態で回転される。
嵌合部品は、旋回されて開口部に嵌合されると、回転係合部の下端が段部から外れる。段部から下端が外れた回転係合部は、組付ストロークの下降が可能となる。湾曲起立壁は、内側曲面に軸部の外周が当たるため、軸部の回転中心ずれを抑制できる。これにより、嵌合部品は、正規の旋回軌道でガイドされ、開口部に嵌合しやすくなる。 According to the electric junction box having the configuration (3) above, the rotation receiving edge portion provided on the side surface of the housing has a curved upright wall that is arc-shaped in horizontal cross-section. The curved upright wall is formed by notching the upper side of the wall except for the lower end of the substantially cylindrical shape in the direction along the rotation receiving edge into a substantially semi-cylindrical shape. The lower end, which is not notched, is formed with a stepped portion by remaining a substantially cylindrical shape. This stepped portion serves as a heightening projection. That is, the curved upright wall has a substantially semi-cylindrical notch on the upper side and a substantially cylindrical lower end to form a shape on which the rotary engaging portion rides.
On the other hand, the rotary engaging portion has a shaft portion that contacts the inner curved surface of the curved upright wall. The shaft serves as an axis in a direction along which the axis line extends along the rotation receiving edge. The inner curved surface of the curved upright wall and the shaft portion whose outer peripheral surface is in contact with the inner curved surface are arranged coaxially about one rotation center. The fitting part whose shaft portion is in contact with the inner curved surface of the curved upright wall is turned around this center of rotation. At this time, the rotary engaging portion is rotated while its lower end rests on the stepped portion.
When the fitting part is turned and fitted into the opening, the lower end of the rotary engaging portion is disengaged from the stepped portion. The rotary engaging portion, the lower end of which is separated from the stepped portion, can be lowered in the assembly stroke. Since the curved upright wall contacts the inner curved surface with the outer periphery of the shaft, it is possible to suppress deviation of the rotation center of the shaft. As a result, the fitting part is guided along a normal turning orbit, making it easier to fit into the opening.

（４） 前記回転受け縁部が、水平断面視略半円筒状の筒壁を有し、前記回転係合部が、前記筒壁に内側曲面を当接する弧状壁部を有し、前記弧状壁部の内側曲面を前記筒壁の外周に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする上記（１）に記載の電気接続箱。 (4) The rotation receiving edge has a substantially semi-cylindrical cylindrical wall when viewed in horizontal cross section, and the rotation engaging portion has an arcuate wall having an inner curved surface in contact with the cylindrical wall. The electric connection box according to the above (1), wherein the inner curved surface of the portion is in contact with the outer circumference of the cylindrical wall and rotates around the rotation receiving edge.

上記（４）の構成の電気接続箱によれば、回転受け縁部が、水平断面視略半円筒状の筒壁を有する。筒壁は、円周方向の一端が、開口部の縁部に接続される。水平断面視略半円筒状の筒壁は、Ｃ字形状となり、Ｃ字の開口部側の一端が、開口部の縁部に沿って接続される。この筒壁の外周は、円周面となっている。即ち、略半割の半円軸が開口部の縁部に沿って設けられている。
一方、回転係合部は、弧状壁部を有する。弧状壁部は、内側曲面を有する。内側曲面は、筒壁の外周面と同一半径の湾曲面となる。弧状壁部は、筒壁の外周方向の長さよりも、円弧方向の長さが短く形成される。即ち、弧状壁部は、内側曲面を筒壁の外周に当接して、この円弧方向の長さが短い分、筒壁の周りを回転が可能となっている。
筒壁と、筒壁の外周に内側曲面を当接した弧状壁部とは、一つの回転中心を中心とした同軸に配置される。弧状壁部を筒壁の外周面に当てた嵌合部品は、この回転中心を中心に旋回される。この際、弧状壁部は、下端が、筒壁の一部分から半径方向外側に突出した支持突起に乗った状態で回転される。
嵌合部品は、旋回されて開口部に嵌合されると、弧状壁部の下端が支持突起から外れる。支持突起から下端が外れた弧状壁部は、組付ストロークの下降が可能となる。
弧状壁部は、内側曲面を筒壁の外周に当てるため、弧状壁部の回転中心ずれを抑制できる。これにより、嵌合部品は、正規の旋回軌道でガイドされ、開口部に嵌合しやすくなる。
また、弧状壁部は、嵌合部品が開口部に嵌合した状態で、筒壁を円周方向の半分以上の長さで覆う。ここで、弧状壁部は、筒壁と同様にＣ字形状となり、Ｃ字の開口部側の一端が嵌合部品に接続される。このため、弧状壁部は、嵌合部品から水平断面視略半円形状となって延出し、筒壁を覆う。即ち、開口部の縁部に設けられた筒壁は、嵌合部品から延出した弧状壁部により連続面で覆われることになる。これにより、嵌合部品に当たった水は、嵌合部品から弧状壁部の表面を流れ、筒壁には直接当たらないように構成されている。その結果、この筒壁と弧状壁部との摺接構造によれば、嵌合部品に当たった水を、開口部に浸入しにくくできる。 According to the electrical connection box having the configuration (4), the rotation receiving edge has a substantially semi-cylindrical cylindrical wall when viewed in horizontal cross section. The cylinder wall is connected at one end in the circumferential direction to the edge of the opening. A substantially semi-cylindrical cylindrical wall in a horizontal cross section has a C shape, and one end of the C shape on the side of the opening is connected along the edge of the opening. The outer circumference of this cylindrical wall is a circular surface. That is, a substantially half-circular axis is provided along the edge of the opening.
On the other hand, the rotary engagement portion has an arcuate wall portion. The arcuate wall has an inner curved surface. The inner curved surface is a curved surface with the same radius as the outer peripheral surface of the cylinder wall. The arc-shaped wall portion is formed so that the length in the arc direction is shorter than the length in the outer peripheral direction of the cylinder wall. That is, the arcuate wall portion abuts the inner curved surface on the outer circumference of the cylinder wall, and is rotatable around the cylinder wall due to the short length in the arc direction.
The cylindrical wall and the arcuate wall portion with the inner curved surface in contact with the outer periphery of the cylindrical wall are arranged coaxially about one rotation center. The fitting part with the arcuate wall portion in contact with the outer peripheral surface of the cylindrical wall is turned around this center of rotation. At this time, the arcuate wall portion is rotated while its lower end rests on a support projection protruding radially outward from a portion of the cylinder wall.
When the fitting part is turned and fitted into the opening, the lower end of the arcuate wall part is disengaged from the supporting projection. The arcuate wall portion, the lower end of which is separated from the support projection, allows the lowering of the assembly stroke.
Since the arcuate wall portion contacts the outer circumference of the cylinder wall with the inner curved surface, it is possible to suppress the deviation of the rotation center of the arcuate wall portion. As a result, the fitting part is guided along a normal turning orbit, making it easier to fit into the opening.
In addition, the arcuate wall portion covers the cylinder wall over half or more in the circumferential direction when the fitting part is fitted in the opening. Here, the arcuate wall portion is C-shaped like the cylindrical wall, and one end of the C-shaped opening portion is connected to the fitting component. For this reason, the arcuate wall portion extends from the fitting part in a substantially semicircular shape in a horizontal cross-sectional view to cover the cylindrical wall. That is, the cylindrical wall provided at the edge of the opening is covered with a continuous surface by the arcuate wall extending from the fitting part. As a result, the water hitting the fitting part flows from the fitting part on the surface of the arcuate wall portion, and does not directly hit the cylindrical wall. As a result, according to this sliding contact structure between the tubular wall and the arcuate wall portion, it is possible to prevent water that hits the fitting part from entering the opening.

（５） 前記筐体の前記先端係合縁部に当接する前記嵌合部品の回転先端部が、前記先端係合縁部の端縁を表裏から挟んで挿入する水平断面視略Ｕ字状の溝部を有することを特徴とする上記（１）～（４）のいずれか一つに記載の電気接続箱。 (5) The rotating tip portion of the fitting part that abuts on the tip engaging edge portion of the housing is substantially U-shaped in horizontal cross-section and is inserted while sandwiching the edge of the tip engaging edge portion from the front and back. The electric connection box according to any one of (1) to (4) above, which has a groove.

上記（５）の構成の電気接続箱によれば、筐体の側面に開口部が開口している。筐体は、開口部を挟む両側縁が、鉛直方向に沿う回転受け縁部と先端係合縁部となる。このうち、筐体の先端係合縁部には、開口部に嵌合した嵌合部品の回転先端部が係合する。先端係合縁部は、筐体の壁端が開口部に臨み、同一の壁厚で開口部の上下方向に延在する縁部となる。
一方、嵌合部品の回転先端部は、水平断面視略Ｕ字状の溝部を有する。溝部は、先端係合縁部の端縁を表裏から挟んで挿入する。溝部は、嵌合部品が旋回されると、筐体の先端係合縁部に接近する。嵌合部品は、回転先端部が先端係合縁部に接近すると、溝部の溝開口に、先端係合縁部が配置される。嵌合部品は、更に旋回されると、開口部に嵌合すると同時に、溝部の内側に先端係合縁部を受け入れる。
溝部は、嵌合部品の回転先端部から旋回方向に突出する一対の平行な離間壁により形成される。溝部は、この一対の離間壁により、先端係合縁部の端縁を表裏から挟む。溝部は、離間壁が、嵌合部品の回転先端部から旋回方向に延出して形成される。このため、回転先端部が旋回しながら溝部の内側に先端係合縁部を受け入れる際、先端係合縁部は離間壁に干渉しにくくなり、溝部は止水に十分な深さを確保することができる。そして、嵌合部品に当たった水は、嵌合部品から離間壁の外面を流れ、溝部内には浸入しにくくなる。また、溝部と先端係合縁部とは、一対の離間壁の間に、先端係合縁部の端縁が挿入されるので、水が浸入しにくい屈曲路（迷路構造）を形成できる。これにより、電気接続箱は、嵌合部品の回転先端部と、筐体の先端係合縁部との間からの水の浸入を抑制することができる。 According to the electrical connection box having the configuration (5) above, the opening is formed in the side surface of the housing. In the case, both side edges sandwiching the opening are the rotation receiving edge and the front end engaging edge along the vertical direction. Of these, the tip engaging edge of the housing is engaged with the rotating tip of the fitting part fitted in the opening. The tip engagement edge is an edge that faces the opening at the wall end of the housing and extends in the vertical direction of the opening with the same wall thickness.
On the other hand, the rotating tip of the fitting part has a substantially U-shaped groove when viewed in horizontal cross section. The groove portion is inserted while sandwiching the edge of the front end engaging edge portion from the front and back. The groove approaches the leading engagement edge of the housing when the mating part is pivoted. The fitting has a leading engagement edge positioned in the channel opening of the channel when the rotating tip approaches the leading engagement edge. The fitting part, when further pivoted, fits into the opening while receiving the leading engagement edge inside the groove.
The groove is formed by a pair of parallel separation walls protruding in the turning direction from the rotating tip of the fitting part. The groove portion sandwiches the edge of the front end engaging edge portion from the front and back sides by the pair of separating walls. The groove is formed by a separation wall extending in the turning direction from the rotating tip of the fitting part. Therefore, when the tip engagement edge is received inside the groove while the rotating tip rotates, the tip engagement edge is less likely to interfere with the separation wall, and the groove must be deep enough to stop water. can be done. Then, the water that hits the fitting part flows from the fitting part on the outer surface of the separation wall, and is less likely to enter the groove. In addition, since the edge of the tip engagement edge is inserted between the pair of separation walls between the groove and the tip engagement edge, a curved path (maze structure) into which water is difficult to enter can be formed. As a result, the electric connection box can suppress the entry of water from between the rotating tip portion of the fitting part and the tip engaging edge portion of the housing.

本発明に係る電気接続箱によれば、筐体の嵌合保持部に嵌合部品を容易に組付けることができる。 According to the electrical junction box of the present invention, fitting parts can be easily assembled to the fitting holding portion of the housing.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

本発明の第１実施形態に係る電気接続箱の分解斜視図である。1 is an exploded perspective view of an electric connection box according to a first embodiment of the present invention; FIG. 図１に示した筐体の嵌合保持部に対し嵌合部品が嵌合途中となった電気接続箱の要部概略平面図である。FIG. 2 is a schematic plan view of a main part of the electric connection box in which the fitting component is in the middle of being fitted to the fitting holding portion of the housing shown in FIG. 1 ; 図２に示した回転受け縁部及び回転係合部の要部拡大図である。FIG. 3 is an enlarged view of a main portion of a rotation receiving edge portion and a rotation engaging portion shown in FIG. 2; 高さ出し突起である載置片部を要部拡大図と共に表した筐体の要部側面図である。FIG. 10 is a side view of the main part of the housing, showing the mounting piece, which is the heightening projection, along with an enlarged view of the main part; ロック部のロック前とロック後を表した筐体及び嵌合部品の要部斜視図である。FIG. 10 is a perspective view of a main part of a housing and a fitting part showing before and after locking of a locking part; 嵌合部品の組付ストロークを表す筐体及び嵌合部品の要部側面図である。FIG. 10 is a side view of the main parts of the housing and the fitting part showing the assembly stroke of the fitting part; 筐体の嵌合保持部に対し嵌合部品が嵌合した電気接続箱の要部概略平面図である。FIG. 4 is a schematic plan view of the main part of the electric connection box in which the fitting part is fitted to the fitting holding portion of the housing; 図７に示した嵌合部品の回転先端部と筐体の先端係合縁部との収まりを表す要部拡大平面図である。FIG. 8 is an enlarged plan view of a main part showing fitting between the rotating tip portion of the fitting part shown in FIG. 7 and the tip engaging edge portion of the housing; 本発明の第２実施形態に係る電気接続箱の分解斜視図である。FIG. 6 is an exploded perspective view of an electric connection box according to a second embodiment of the present invention; 図９に示した筐体の嵌合保持部に対し嵌合部品が嵌合途中となった電気接続箱の要部概略平面図である。FIG. 10 is a schematic plan view of a main portion of the electrical connection box in which the fitting component is in the middle of being fitted to the fitting holding portion of the housing shown in FIG. 9; 図１０に示した回転受け縁部及び回転係合部の要部拡大図である。FIG. 11 is an enlarged view of main parts of the rotation receiving edge portion and the rotation engaging portion shown in FIG. 10; 高さ出し突起である段部を要部拡大図と共に表した筐体の要部側面図である。FIG. 4 is a side view of a main part of a housing, showing a stepped part as a heightening projection together with an enlarged view of the main part; 筐体の嵌合保持部に対し嵌合部品が嵌合した電気接続箱の要部概略平面図である。FIG. 4 is a schematic plan view of the main part of the electric connection box in which the fitting part is fitted to the fitting holding portion of the housing; 本発明の第３実施形態に係る電気接続箱の分解斜視図である。FIG. 11 is an exploded perspective view of an electric connection box according to a third embodiment of the present invention; 図１４に示した筐体の嵌合保持部に対し嵌合部品が嵌合途中となった電気接続箱の要部概略平面図である。FIG. 15 is a schematic plan view of a main part of the electric connection box in which the fitting component is in the middle of being fitted to the fitting holding portion of the housing shown in FIG. 14; 図１５に示した回転受け縁部及び回転係合部の要部拡大図である。FIG. 16 is an enlarged view of main parts of the rotation receiving edge portion and the rotation engaging portion shown in FIG. 15; 図１６に示した筒壁の要部拡大図である。FIG. 17 is an enlarged view of a main part of the cylindrical wall shown in FIG. 16; 図１６に示した筒壁及び弧状壁部の要部平面図である。FIG. 17 is a plan view of the essential parts of the cylindrical wall and the arcuate wall shown in FIG. 16; 高さ出し突起である支持突起を要部拡大図と共に表した筐体の要部側面図である。FIG. 10 is a side view of the main part of the housing, showing the supporting projections, which are the heightening projections, together with an enlarged view of the main part; 筐体の嵌合保持部に対し嵌合部品が嵌合した電気接続箱の要部概略平面図である。FIG. 4 is a schematic plan view of the main part of the electric connection box in which the fitting part is fitted to the fitting holding portion of the housing; 従来の電気接続箱における収容部材（嵌合部品）の嵌合合わせ部分を示す斜視図である。and FIG. 10 is a perspective view showing a fitting portion of a housing member (fitting part) in a conventional electrical connection box.

以下、本発明に係る実施形態を図面を参照して説明する。
図１は、本発明の第１実施形態に係る電気接続箱１の分解斜視図である。
本実施形態に係る電気接続箱１は、例えば、車両に搭載され、図示しない車両の電源（二次電池）と電子機器との間に介在させ、その電源から電子機器への供給電力を調整するものである。この電気接続箱１は、リレーボックス、ヒューズボックス、ジャンクションボックス等と称される場合もある。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of an electrical junction box 1 according to a first embodiment of the invention.
The electric connection box 1 according to the present embodiment is mounted on a vehicle, for example, and is interposed between the power source (secondary battery) of the vehicle (not shown) and an electronic device, and adjusts the power supplied from the power source to the electronic device. It is. This electrical connection box 1 is sometimes called a relay box, a fuse box, a junction box, or the like.

本実施形態に係る電気接続箱１は、図１及び図２に示すように、例えばそれぞれが絶縁樹脂製の筐体１３と、筐体１３の嵌合保持部１５に嵌合保持される嵌合部品１７と、筐体１３の下方開口を覆うロアカバー１９とを備えたケース本体２０内に複数の電子部品３を収容する。筐体１３は、上面と側面とに渡って嵌合保持部１５を開口している。筐体１３及び嵌合部品１７の上方開口は、第１アッパーカバー２１及び第２アッパーカバー２３により覆われる。 As shown in FIGS. 1 and 2, the electrical connection box 1 according to the present embodiment includes, for example, a housing 13 made of an insulating resin and a fitting holding portion 15 of the housing 13 which is fitted and held. A plurality of electronic components 3 are accommodated in a case body 20 having components 17 and a lower cover 19 covering a lower opening of a housing 13. - 特許庁The housing 13 has a fitting holding portion 15 open over the top surface and side surfaces. Upper openings of the housing 13 and fitting parts 17 are covered with a first upper cover 21 and a second upper cover 23 .

ケース本体２０内に収容される電子部品３とは、例えば、リレー、ヒューズやヒュージブルリンク等のことである。電子部品３は、筐体１３の内方に配置されたリレー本体やヒューズ本体等の電子部品本体（図示略）と、その電子部品本体に対して電気的に接続された電気接続部としての複数の端子（図示略）と、を備える。これら電子部品３の端子には、電線５が電気的に接続されている。 The electronic components 3 housed in the case body 20 are, for example, relays, fuses, fusible links, and the like. The electronic component 3 includes an electronic component body (not shown) such as a relay body and a fuse body arranged inside the housing 13, and a plurality of electrical connection portions electrically connected to the electronic component body. and a terminal (not shown). Electrical wires 5 are electrically connected to the terminals of these electronic components 3 .

この電子部品３の端子に対して電気的に接続される電線５は、一方の端部を電子部品３の端子に対して電気的に接続させ、他方の端部を電源（二次電池）や電子機器に対して電気的に接続させるものである。この電線５は、相手側端子（図示略）を介して電子部品３の端子に電気的に接続する。ケース本体２０の筐体１３から引き出された複数本の電線５は、粘着テープやコルゲートチューブ等の外装材７で一纏めに束ねられている。 The electric wire 5 electrically connected to the terminal of the electronic component 3 has one end electrically connected to the terminal of the electronic component 3 and the other end connected to a power supply (secondary battery) or the like. It is to be electrically connected to an electronic device. The electric wire 5 is electrically connected to a terminal of the electronic component 3 via a mating terminal (not shown). A plurality of electric wires 5 pulled out from the housing 13 of the case body 20 are bundled together with an exterior material 7 such as an adhesive tape or a corrugated tube.

本第１実施形態に係る筐体１３は、嵌合部品１７を嵌合保持する嵌合保持部１５（図２参照）と、複数の電子部品３を収容及び保持する複数の電子部品収容室２５，２６とを備える。電子部品収容室２５は、筐体１３の上方開口に露出するように複数の電子部品３が収容配置されている。また、電子部品収容室２６は、嵌合部品１７の下方に配置されるフレーム部２７にも設けられる。フレーム部２７の電子部品収容室２６にも積層状態となるように複数の電子部品３が収容配置されている。勿論、複数の電子部品収容室２５，２６の配置は、これに限らず種々の配置が可能であることは云うまでもない。 The housing 13 according to the first embodiment includes a fitting holding portion 15 (see FIG. 2) that fits and holds the fitting component 17, and a plurality of electronic component storage chambers 25 that accommodate and hold a plurality of electronic components 3. , 26. The electronic component storage chamber 25 accommodates and arranges a plurality of electronic components 3 so as to be exposed to the upper opening of the housing 13 . The electronic component storage chamber 26 is also provided in a frame portion 27 arranged below the fitting component 17 . A plurality of electronic components 3 are also accommodated and arranged in an electronic component accommodation chamber 26 of the frame portion 27 so as to form a stacked state. Needless to say, the arrangement of the plurality of electronic component storage chambers 25 and 26 is not limited to this, and various arrangements are possible.

なお、本明細書の電気接続箱１においては説明の都合上、図１の嵌合部品１７が組付けられる側を前側、その反対側を後側とし、側部固定板２９が設けられている側を左側、その反対側を右側とする。嵌合保持部１５の右斜め前方から水平方向に案内されて嵌合開始位置に達した嵌合部品１７が下方の嵌合完了位置まで案内される嵌合方向（矢印Ａ方向）は、電気接続箱１の上側から下側となる。従って、本明細書中において、前後上下左右の方向は図１に示す矢印の通りとなる。 In the electric connection box 1 of this specification, for convenience of explanation, the side on which the fitting part 17 of FIG. The left side is the left side, and the opposite side is the right side. The fitting direction (arrow A direction) in which the fitting component 17 that has reached the fitting start position by being guided horizontally from the right oblique front of the fitting holding portion 15 is guided to the bottom fitting completion position (direction of arrow A) is the electrical connection direction. From the top of the box 1 to the bottom. Therefore, in this specification, the front, back, up, down, left, and right directions are as indicated by the arrows shown in FIG.

図２に示すように、本第１実施形態に係る嵌合保持部１５は、フレーム部２７の電子部品収容室２６の上方に嵌合部品１７を着脱し得るように嵌合保持するために、筐体１３の側面に区画形成されている。嵌合保持部１５は、電子部品収容室２５を区画形成している筐体１３の両側壁から前側にそれぞれ延設された一方の側壁３１及び他方の側壁３３を有する。 As shown in FIG. 2, the fitting and holding portion 15 according to the first embodiment is designed to fit and hold the fitting component 17 above the electronic component housing chamber 26 of the frame portion 27 so that the fitting component 17 can be attached and detached. A partition is formed on the side surface of the housing 13 . The fitting holding portion 15 has one side wall 31 and the other side wall 33 extending forward from both side walls of the housing 13 defining the electronic component housing chamber 25 .

本第１実施形態に係る電気接続箱１は、上記の筐体１３及び嵌合部品１７に加え、回転受け縁部３５及び先端係合縁部３７と、回転係合部３９と、高さ出し突起４１と、ロック部である第１～第４ロック部５９，６１，６３，６５とを主要な構成として有する。 In addition to the housing 13 and the fitting part 17, the electrical connection box 1 according to the first embodiment includes a rotation receiving edge portion 35, a tip engagement edge portion 37, a rotation engagement portion 39, and a height extension. It has projections 41 and first to fourth locking portions 59, 61, 63, 65 as locking portions as main components.

図２は、図１に示した筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合途中となった電気接続箱１の要部概略平面図である。
回転受け縁部３５は、嵌合保持部１５を開放して側面に形成された開口部４３の一方の鉛直方向に沿う方向の縁部に形成される。本第１実施形態において、回転受け縁部３５は、開口部４３に臨む一方の側壁３１の平坦な縁部となる。この回転受け縁部３５は、嵌合部品１７の回転係合部３９と係合する。回転係合部３９は、回転受け縁部３５を中心にこの周りを回ることで嵌合部品１７を矢印Ｒ方向に旋回させる。 FIG. 2 is a schematic plan view of the essential parts of the electric connection box 1 in which the fitting part 17 is in the middle of being fitted to the fitting holding portion 15 of the housing 13 shown in FIG.
The rotation receiving edge portion 35 is formed at one edge portion along the vertical direction of the opening portion 43 formed on the side surface of the fitting holding portion 15 . In the first embodiment, the rotation receiving edge 35 is a flat edge of one side wall 31 facing the opening 43 . This rotation receiving edge 35 engages with a rotation engaging portion 39 of the fitting part 17 . The rotation engaging portion 39 rotates the fitting part 17 in the arrow R direction by turning around the rotation receiving edge portion 35 .

先端係合縁部３７は、開口部４３の他方の鉛直方向に沿う方向の縁部に形成される。先端係合縁部３７は、開口部４３に臨む他方の側壁３３の平坦な縁部となる。この先端係合縁部３７は、嵌合部品１７の回転先端部４５における後述する溝部８３に挿入される。 The tip engagement edge portion 37 is formed on the other edge portion of the opening portion 43 along the vertical direction. The tip engagement edge 37 forms a flat edge of the other side wall 33 facing the opening 43 . The tip engaging edge 37 is inserted into a groove 83 (described later) in the rotary tip 45 of the fitting part 17 .

図３は、図２に示した回転受け縁部３５及び回転係合部３９の要部拡大図である。
回転係合部３９は、嵌合部品１７に形成され、開口部４３に対する嵌合部品１７の開放位置で回転受け縁部３５に当接する。本第１実施形態において、回転係合部３９は、水平断面視略Ｖ字状のＶ字回転係合部４７として形成される。Ｖ字回転係合部４７は、徐々に接近する先当て面４９と、後当て面５１とが底部５３で接続される。Ｖ字回転係合部４７が当たる回転受け縁部３５は、端面を傾斜面５５で形成することができる。この場合、Ｖ字回転係合部４７の底部５３は、この傾斜面５５の傾斜方向の長さに相当する平坦面を有する。嵌合部品１７は、回転係合部３９における略Ｖ字状の底部５３を、回転受け縁部３５に当接して回転受け縁部３５を中心にこの周りを矢印Ｒ方向で回る。Ｖ字回転係合部４７は、先当て面４９が平面のため、組付け時に、回転受け縁部３５に接近する方向（矢印Ｂ方向）に移動し、回転受け縁部３５に当接する際の位置あわせが狙いやすくなっている。 FIG. 3 is an enlarged view of the main parts of the rotation receiving edge portion 35 and the rotation engaging portion 39 shown in FIG.
The rotation engaging portion 39 is formed on the fitting component 17 and abuts against the rotation receiving edge portion 35 in the open position of the fitting component 17 with respect to the opening 43 . In the first embodiment, the rotary engaging portion 39 is formed as a V-shaped rotary engaging portion 47 having a substantially V-shaped horizontal cross section. The V-shaped rotary engaging portion 47 has a front contact surface 49 gradually approaching and a rear contact surface 51 connected at a bottom portion 53 . The rotation receiving edge 35 with which the V-shaped rotation engaging portion 47 abuts can be formed with an inclined surface 55 at the end surface. In this case, the bottom portion 53 of the V-shaped rotary engaging portion 47 has a flat surface corresponding to the length of the inclined surface 55 in the inclined direction. The fitting part 17 rotates around the rotation receiving edge 35 in the direction of the arrow R while abutting the substantially V-shaped bottom portion 53 of the rotation engaging portion 39 against the rotation receiving edge 35 . Since the front abutting surface 49 of the V-shaped rotation engaging portion 47 is flat, it moves in the direction (arrow B direction) approaching the rotation receiving edge 35 during assembly, and the V-shaped rotation engaging portion 47 contacts the rotation receiving edge 35 . Position alignment is easier to aim.

図４は、高さ出し突起４１である載置片部５７を要部拡大図と共に表した筐体１３の要部側面図である。
高さ出し突起４１は、回転受け縁部３５に形成される。高さ出し突起４１は、回転受け縁部３５に沿う回転係合部３９の下方向の移動を途中で規制する。また、高さ出し突起４１は、嵌合部品１７の閉止位置では、回転係合部３９の下方向の移動規制を解除する。 FIG. 4 is a side view of the main part of the housing 13 showing the mounting piece 57 which is the heightening projection 41 together with an enlarged view of the main part.
The elevation projection 41 is formed on the rotation receiving edge portion 35 . The heightening projection 41 restricts the downward movement of the rotation engaging portion 39 along the rotation receiving edge portion 35 midway. Further, the heightening protrusion 41 releases the downward movement restriction of the rotation engaging portion 39 when the fitting part 17 is in the closed position.

回転係合部３９がＶ字回転係合部４７の場合、高さ出し突起４１は、載置片部５７となる。載置片部５７は、主に先当て面４９の下端縁を載置するため、回転受け縁部３５の側面から突出する。この載置片部５７は、嵌合部品１７が開口部４３を閉鎖する閉止位置まで旋回されると、Ｖ字回転係合部４７から外れる位置に設けられている。載置片部５７から下端が外れたＶ字回転係合部４７は、組付ストロークＳ（図６参照）の下降が可能となる。 When the rotary engaging portion 39 is the V-shaped rotary engaging portion 47 , the heightening projection 41 becomes the mounting piece portion 57 . The mounting piece 57 protrudes from the side surface of the rotation receiving edge 35 in order to mainly mount the lower edge of the front contact surface 49 . The mounting piece portion 57 is provided at a position where it is separated from the V-shaped rotary engaging portion 47 when the fitting part 17 is turned to the closed position for closing the opening portion 43 . The V-shaped rotary engaging portion 47, the lower end of which is separated from the mounting piece portion 57, can be lowered by the assembly stroke S (see FIG. 6).

図５は、ロック部のロック前とロック後を表した筐体１３及び嵌合部品１７の要部斜視図である。
ロック部は、筐体１３と嵌合部品１７との間に渡って設けられる。ロック部は、規制が解除されて下降した嵌合部品１７を、筐体１３に係合固定する。本第１実施形態に係るロック部は、図２に示すように、第１ロック部５９と、第２ロック部６１と、第３ロック部６３と、第４ロック部６５とからなる。第１ロック部５９は、嵌合部品１７の前面に設けられる第１ロック爪６７と、フレーム部２７の前面に設けられる第１ロック受部６９とからなる。第２ロック部６１は、嵌合部品１７の左側面に設けられる第２ロック爪７１と、他方の側壁３３の内面に設けられる第２ロック受部７３とからなる。第３ロック部６３は、嵌合部品１７の左背面に設けられる第３ロック爪７５と、嵌合保持部１５の左奥壁面に設けられる第３ロック受部７７とからなる。第４ロック部６５は、嵌合部品１７の右背面に設けられる第４ロック爪７９と、嵌合保持部１５の右奥壁面に設けられる第４ロック受部８１とからなる。 FIG. 5 is a perspective view of main parts of the housing 13 and the fitting part 17 showing before and after locking of the locking portion.
The lock portion is provided across the housing 13 and the fitting part 17 . The locking portion engages and fixes the fitting part 17 lowered with the release of the regulation to the housing 13 . The locking portion according to the first embodiment includes a first locking portion 59, a second locking portion 61, a third locking portion 63, and a fourth locking portion 65, as shown in FIG. The first lock portion 59 includes a first lock claw 67 provided on the front surface of the fitting part 17 and a first lock receiving portion 69 provided on the front surface of the frame portion 27 . The second lock portion 61 includes a second lock claw 71 provided on the left side surface of the fitting part 17 and a second lock receiving portion 73 provided on the inner surface of the other side wall 33 . The third lock portion 63 includes a third lock claw 75 provided on the left rear surface of the fitting component 17 and a third lock receiving portion 77 provided on the left rear wall surface of the fitting holding portion 15 . The fourth lock portion 65 includes a fourth lock claw 79 provided on the right rear surface of the fitting component 17 and a fourth lock receiving portion 81 provided on the right rear wall surface of the fitting holding portion 15 .

図６は、嵌合部品１７の組付ストロークを表す筐体１３及び嵌合部品１７の要部側面図である。
嵌合部品１７は、旋回組付け時、載置片部５７により下方向の移動が途中で規制される。この位置で、ロック部は、それぞれのロック爪とロック部とが離間して対向配置される。嵌合部品１７は、開口部４３に嵌合する位置へ旋回されると、載置片部５７からＶ字回転係合部４７が外れて規制が解除される。載置片部５７から下端が外れたＶ字回転係合部４７は、組付ストロークＳの下降が可能となる。この組付ストロークＳの移動により、第１ロック部５９、第２ロック部６１、第３ロック部６３及び第４ロック部６５が同時に係合状態となり、嵌合部品１７が筐体１３に固定される。 FIG. 6 is a side view of main parts of the housing 13 and the fitting part 17 showing the assembly stroke of the fitting part 17. FIG.
The downward movement of the fitting part 17 is restricted by the mounting piece 57 during the turning assembly. At this position, the locking portions are arranged to face each other with the respective locking claws and the locking portions spaced apart. When the fitting part 17 is turned to a position where it fits into the opening 43, the V-shaped rotation engaging part 47 is disengaged from the mounting piece 57 and the restriction is released. The V-shaped rotary engaging portion 47, the lower end of which is separated from the mounting piece portion 57, can be lowered by the assembling stroke S. Due to the movement of this assembling stroke S, the first lock portion 59, the second lock portion 61, the third lock portion 63 and the fourth lock portion 65 are simultaneously engaged, and the fitting part 17 is fixed to the housing 13. be.

図７は、筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合した電気接続箱１の要部概略平面図である。
嵌合保持部１５に嵌合部品１７が固定された筐体１３は、嵌合部品１７により嵌合保持部１５の開口部４３が閉鎖される。電気接続箱１は、放水方向が右斜め前方（矢印Ｗ）からとなる車載位置に取り付けられる。放水方向の下流側に位置するＶ字回転係合部４７は、放水方向と反対側にＶ字開口が向くことにより、放水時の水が浸入しにくくなっている。 FIG. 7 is a schematic plan view of the electrical connection box 1 in which the fitting component 17 is fitted to the fitting holding portion 15 of the housing 13. FIG.
In the housing 13 in which the fitting part 17 is fixed to the fitting holding part 15 , the opening part 43 of the fitting holding part 15 is closed by the fitting part 17 . The electric junction box 1 is installed in a vehicle-mounted position so that the direction of water discharge is diagonally forward to the right (arrow W). The V-shaped rotational engaging portion 47 located downstream in the water discharge direction has a V-shaped opening facing the opposite side of the water discharge direction, making it difficult for water to enter during water discharge.

図８は、図７に示した嵌合部品１７の回転先端部４５と筐体１３の先端係合縁部３７との収まりを表す要部拡大平面図である。
また、電気接続箱１は、筐体１３の先端係合縁部３７に当接することとなる嵌合部品１７の回転先端部４５が、溝部８３を有している。この溝部８３は、筐体１３における先端係合縁部３７の端縁を、表裏から挟んで挿入する水平断面視略Ｕ字状に形成されている。筐体１３の先端係合縁部３７は、嵌合部品１７の回転先端部４５に設けられた溝部８３が、矢印Ｗの放水方向から被さるように挿入されるので、放水時の水が浸入しにくくなっている。即ち、電気接続箱１は、嵌合部品１７が装着されることにより、開口部４３の止水性が確保される。なお、図８中の直角に曲がる矢印は、矢印Ｗ方向の放水がエンジンルーム内壁等に当たって、矢印Ｗから垂直方向に派生した水流を示す。 FIG. 8 is an enlarged plan view of a main part showing how the rotating tip portion 45 of the fitting part 17 shown in FIG.
In addition, in the electric connection box 1 , the rotating tip portion 45 of the fitting part 17 that comes into contact with the tip engaging edge portion 37 of the housing 13 has a groove portion 83 . The groove portion 83 is formed in a substantially U-shape in a horizontal cross-sectional view into which the end edge of the front end engaging edge portion 37 of the housing 13 is sandwiched and inserted. The tip engaging edge 37 of the housing 13 is inserted so that the groove 83 provided in the rotating tip 45 of the fitting part 17 is covered from the water discharge direction of the arrow W, so water does not enter when the water is discharged. It's getting harder. That is, the electrical connection box 1 is provided with the fitting part 17 to ensure the water cutoff of the opening 43 . In addition, the arrows that curve at right angles in FIG. 8 indicate the water flow that is derived in the vertical direction from the arrow W when the water discharged in the direction of the arrow W hits the inner wall of the engine room or the like.

次に、上記した第１実施形態に係る電気接続箱１の作用を説明する。
本第１実施形態に係る電気接続箱１では、筐体１３の嵌合保持部１５は、筐体１３の上面の一部と側面とを切り欠いて設けられている。この嵌合保持部１５には、嵌合部品１７が一体に嵌合及び保持される。嵌合部品１７は、電線５に接続される電子部品３を有している。 Next, the operation of the electrical connection box 1 according to the first embodiment will be described.
In the electric connection box 1 according to the first embodiment, the fitting holding portion 15 of the housing 13 is provided by cutting out a part of the upper surface and the side surface of the housing 13 . A fitting component 17 is integrally fitted and held in the fitting holding portion 15 . The fitting part 17 has the electronic part 3 connected to the electric wire 5 .

筐体１３は、嵌合保持部１５が設けられることにより側面に開口部４３が形成される。嵌合部品１７は、この開口部４３から嵌合保持部１５へ装着される。開口部４３が形成された側面は、この開口部４３を挟む両側縁が、鉛直方向に沿う方向の回転受け縁部３５及び先端係合縁部３７となる。嵌合部品１７は、これら回転受け縁部３５及び先端係合縁部３７の間に装着される。 The housing 13 is formed with an opening 43 on the side surface by providing the fitting holding portion 15 . The fitting part 17 is attached to the fitting holding portion 15 through the opening 43 . As for the side surface on which the opening 43 is formed, both side edges sandwiching the opening 43 serve as the rotation receiving edge 35 and the front end engaging edge 37 in the vertical direction. The fitting part 17 is mounted between the rotation receiving edge 35 and the tip engaging edge 37 .

嵌合部品１７は、側面の回転受け縁部３５に当接する回転係合部３９を有する。組付け時、嵌合部品１７は、回転受け縁部３５の延在方向に直交する方向で移動され、開口部４３に対する嵌合部品１７の開放位置で回転係合部３９が回転受け縁部３５に当接される。即ち、嵌合部品１７は、回転係合部３９が平行移動されて回転受け縁部３５に当接する。回転受け縁部３５に当接した回転係合部３９は、回転受け縁部３５を中心にこの周りを回ることにより嵌合部品１７を矢印Ｒ方向に旋回させる。水平方向へ旋回した嵌合部品１７は、回転半径外端（回転係合部３９と反対側の端）に設けられる回転先端部４５が、側面の先端係合縁部３７に係合して旋回が停止し、開口部４３を塞ぐ（即ち、嵌合する）。 The fitting part 17 has a rotation engaging portion 39 that abuts on the rotation receiving edge 35 on the side surface. At the time of assembly, the fitting part 17 is moved in a direction perpendicular to the direction in which the rotation receiving edge 35 extends, and the rotation engaging part 39 engages the rotation receiving edge 35 at the opening position of the fitting part 17 with respect to the opening 43 . is abutted. That is, the fitting part 17 abuts on the rotation receiving edge 35 with the rotation engaging portion 39 translated. The rotation engaging portion 39 in contact with the rotation receiving edge portion 35 rotates the fitting part 17 in the arrow R direction by rotating around the rotation receiving edge portion 35 . The fitting part 17 rotated in the horizontal direction rotates with the rotating tip portion 45 provided at the outer end of the radius of rotation (the end opposite to the rotating engaging portion 39) engaging with the tip engaging edge portion 37 on the side surface. stops and closes (that is, engages) the opening 43 .

このとき、回転係合部３９は、回転受け縁部３５に係合することにより、回転中心に直交する方向の移動が規制されながら回転受け縁部３５を中心にこの周りを回る。また、回転係合部３９は、回転受け縁部３５に沿う下方向の移動が、回転受け縁部３５に形成された高さ出し突起４１により規制される。この高さ出し突起４１による下方向の移動規制は、嵌合部品１７が開口部４３を塞ぐ閉止位置で解除される。高さ出し突起４１による下方向への規制が解除された嵌合部品１７は、所定の距離（組付ストローク）下降した後、ロック部が係合することにより、筐体１３に固定される。これにより、嵌合部品１７は、筐体１３への装着が完了する。 At this time, the rotation engaging portion 39 rotates around the rotation receiving edge portion 35 while being restricted from moving in the direction perpendicular to the center of rotation by being engaged with the rotation receiving edge portion 35 . Further, the downward movement of the rotation engaging portion 39 along the rotation receiving edge portion 35 is restricted by a heightening projection 41 formed on the rotation receiving edge portion 35 . The downward movement restriction by the heightening projection 41 is released at the closed position where the fitting part 17 closes the opening 43 . The fitting part 17, whose downward restriction by the heightening projection 41 is released, descends by a predetermined distance (assembly stroke), and then is fixed to the housing 13 by engaging the lock portion. This completes the attachment of the fitting part 17 to the housing 13 .

本第１実施形態の電気接続箱１では、嵌合部品１７を筐体１３の嵌合保持部１５へ組み付ける際に、開口部４３の回転受け縁部３５に、嵌合部品１７の回転係合部３９を平行移動して当てることで、回転開始位置を位置決めできる。回転係合部３９を回転受け縁部３５にあてがった嵌合部品１７は、回転中心に直交する方向の移動が規制されながら旋回可能となる。即ち、嵌合部品１７は、旋回方向の終端が閉止位置となる旋回軌道で旋回がガイドされるようになされている。 In the electric connection box 1 of the first embodiment, when the fitting part 17 is assembled to the fitting holding part 15 of the housing 13 , the fitting part 17 is rotationally engaged with the rotation receiving edge 35 of the opening 43 . The rotation start position can be positioned by moving the portion 39 in parallel and applying it. The fitting part 17, in which the rotation engaging portion 39 is applied to the rotation receiving edge portion 35, can turn while movement in the direction orthogonal to the center of rotation is restricted. In other words, the fitting part 17 is guided in turning by a turning orbit whose terminal end in the turning direction is at the closed position.

また、嵌合部品１７は、高さ出し突起４１に回転係合部３９が当たることにより下方向の移動が規制される。即ち、嵌合部品１７は、回転受け縁部３５と高さ出し突起４１とにあてがうことにより、開口部４３に嵌合する位置への旋回がガイドされる。従来構造のように、嵌合部品１７を筐体１３の上方より嵌合保持部１５へ落とし込んで装着する必要がない。このため、電気接続箱１の上方に、嵌合部品１７を装着するための、嵌合部品１７の全高に相当する大きな作業空間を確保する必要がない。 Further, the downward movement of the fitting part 17 is restricted when the rotation engaging portion 39 abuts against the heightening projection 41 . That is, the fitting part 17 is guided to turn to the position where it fits into the opening 43 by applying it to the rotation receiving edge 35 and the heightening projection 41 . Unlike the conventional structure, it is not necessary to drop the fitting part 17 into the fitting holding part 15 from above the housing 13 and attach it. Therefore, it is not necessary to secure a large work space corresponding to the total height of the fitting part 17 above the electrical connection box 1 for mounting the fitting part 17 .

電気接続箱１は、高さ出し突起４１による規制が解除されてからロック部が係合する比較的に短い組付ストロークＳの移動で、組付けを行うことができる。電気接続箱１は、組付ストロークＳが短くなることにより、小さな作業スペースで組付けが可能になるとともに、嵌合部品１７に接続される電線５（ワイヤーハーネス等）の余長も短くすることができる。 The electrical connection box 1 can be assembled by moving a relatively short assembly stroke S in which the locking portion is engaged after the regulation by the heightening projection 41 is released. The electrical connection box 1 can be assembled in a small work space by shortening the assembly stroke S, and the excess length of the electric wire 5 (wire harness or the like) connected to the fitting part 17 can be shortened. can be done.

また、嵌合部品１７は、回転係合部３９を、筐体１３の回転受け縁部３５に平行移動して当てれば位置決めできる。そこで、仮に視認が困難なエンジンルーム奥側等の作業空間であっても、回転開始位置に容易に位置決めすることができる。回転受け縁部３５に回転係合部３９を当接した嵌合部品１７は、高さ出し突起４１に当たるまで下降させた後、回転受け縁部３５を中心にこの周りを旋回するのみで開口部４３に嵌合する閉止位置まで確実に移動させることができる。 Further, the fitting part 17 can be positioned by moving the rotation engaging portion 39 parallel to the rotation receiving edge portion 35 of the housing 13 and bringing it into contact with the rotation receiving edge portion 35 . Therefore, even in a work space such as the back side of the engine room where visual recognition is difficult, the rotation start position can be easily positioned. The fitting part 17, with the rotation engaging portion 39 in contact with the rotation receiving edge 35, is lowered until it hits the heightening projection 41, and then only turns around the rotation receiving edge 35 to form the opening. 43 can be securely moved to the closed position.

そして、電気接続箱１は、開口部４３に嵌合する閉止位置まで嵌合部品１７が旋回されると、高さ出し突起４１による下方向の規制が解除される。この解除を知覚することにより、嵌合部品１７が正規の閉止位置に取り付けられたことを二重に確認することができる。高さ出し突起４１による下方向の規制が解除された嵌合部品１７は、そのまま下方向へ組付ストロークＳだけ移動するのみでロック部が係合して筐体１３への固定が完了する。 Then, when the fitting part 17 is turned to the closing position where the electrical junction box 1 is fitted into the opening 43, the downward restriction by the heightening projection 41 is released. By perceiving this release, it is possible to double confirm that the fitting part 17 is mounted in the proper closed position. The fitting part 17, whose downward restriction by the heightening protrusion 41 is released, moves downward only by the assembly stroke S, and the lock part engages to complete the fixing to the housing 13. FIG.

その結果、電気接続箱１では、筐体１３の嵌合保持部１５に、嵌合部品１７を容易に、しかも、確実に組付けることができる。 As a result, in the electric connection box 1, the fitting component 17 can be easily and reliably assembled to the fitting holding portion 15 of the housing 13. As shown in FIG.

そして、本第１実施形態の電気接続箱１では、嵌合部品１７の回転係合部３９が、水平断面視略Ｖ字状のＶ字回転係合部４７として形成される。Ｖ字回転係合部４７は、徐々に接近する先当て面４９と、後当て面５１とが底部５３で接続される。Ｖ字回転係合部４７が当たる回転受け縁部３５は、筐体１３の開口部４３に臨む側面の縁部となる。この縁部の端面は、傾斜面５５で形成することができる。この場合、Ｖ字回転係合部４７の底部５３は、この傾斜面５５の傾斜方向の長さに相当する平坦面を有する。回転受け縁部３５とＶ字回転係合部４７とは、先当て面４９が側面に当接した状態で、傾斜面５５が平坦面に当接して、回転中心のずれが規制される。Ｖ字回転係合部４７の場合、高さ出し突起４１は、主に先当て面４９の下端縁を載置するための載置片部５７となる。この載置片部５７は、嵌合部品１７が開口部４３を閉鎖する閉止位置まで旋回されると、Ｖ字回転係合部４７から外れる位置に設けられている。載置片部５７から下端が外れたＶ字回転係合部４７は、組付ストロークＳの下降が可能となる。 In addition, in the electric junction box 1 of the first embodiment, the rotary engaging portion 39 of the fitting component 17 is formed as a V-shaped rotary engaging portion 47 having a substantially V-shaped horizontal cross section. The V-shaped rotary engaging portion 47 has a front contact surface 49 gradually approaching and a rear contact surface 51 connected at a bottom portion 53 . The rotation receiving edge 35 with which the V-shaped rotation engaging portion 47 abuts is the side edge facing the opening 43 of the housing 13 . The end face of this edge can be formed with an inclined surface 55 . In this case, the bottom portion 53 of the V-shaped rotary engaging portion 47 has a flat surface corresponding to the length of the inclined surface 55 in the inclined direction. The rotation receiving edge portion 35 and the V-shaped rotation engaging portion 47 are in a state in which the tip contact surface 49 is in contact with the side surface, and the inclined surface 55 is in contact with the flat surface, thereby restricting the deviation of the rotation center. In the case of the V-shaped rotary engaging portion 47, the heightening projection 41 mainly serves as a mounting piece portion 57 for mounting the lower edge of the tip contact surface 49 thereon. The mounting piece portion 57 is provided at a position where it is separated from the V-shaped rotary engaging portion 47 when the fitting part 17 is turned to the closed position for closing the opening portion 43 . The V-shaped rotary engaging portion 47, the lower end of which is separated from the mounting piece portion 57, can be lowered by the assembling stroke S.

Ｖ字回転係合部４７は、先当て面４９が平面のため、回転受け縁部３５に当接する際の位置あわせが狙いやすくなる。Ｖ字回転係合部４７の先当て面４９を回転受け縁部３５にあてがった嵌合部品１７は、Ｖ字の交点を支点に旋回させて開口部４３に容易に嵌合できる。 Since the tip contact surface 49 of the V-shaped rotation engaging portion 47 is flat, it is easy to aim for alignment when contacting the rotation receiving edge portion 35 . The fitting part 17 with the tip abutting surface 49 of the V-shaped rotary engaging portion 47 in contact with the rotation receiving edge 35 can be easily fitted into the opening 43 by rotating about the V-shaped intersection as a fulcrum.

また、この電気接続箱１では、筐体１３の側面に開口部４３が開口している。筐体１３は、開口部４３を挟む両側縁が、鉛直方向に沿う回転受け縁部３５と先端係合縁部３７となる。このうち、筐体１３の先端係合縁部３７には、開口部４３に嵌合した嵌合部品１７の回転先端部４５が係合する。先端係合縁部３７は、筐体１３の壁端が開口部４３に臨み、同一の壁厚で開口部４３の上下方向に延在する縁部となる。 Further, in the electric connection box 1, an opening 43 is opened on the side surface of the housing 13. As shown in FIG. Both side edges of the housing 13 sandwiching the opening 43 serve as a rotation receiving edge 35 and a front end engaging edge 37 along the vertical direction. Among them, the tip engaging edge 37 of the housing 13 is engaged with the rotating tip 45 of the fitting part 17 fitted in the opening 43 . The front engaging edge portion 37 is an edge portion in which the wall end of the housing 13 faces the opening portion 43 and extends in the vertical direction of the opening portion 43 with the same wall thickness.

一方、嵌合部品１７の回転先端部４５は、水平断面視略Ｕ字状の溝部８３を有する。溝部８３は、先端係合縁部３７の端縁を表裏から挟んで挿入する。溝部８３は、嵌合部品１７が旋回されると、筐体１３の先端係合縁部３７に接近する。嵌合部品１７は、回転先端部４５が先端係合縁部３７に接近すると、溝部８３の溝開口に、先端係合縁部３７が配置される。嵌合部品１７は、更に旋回されると、開口部４３に嵌合すると同時に、溝部８３の内側に先端係合縁部３７を受け入れる。 On the other hand, the rotating tip portion 45 of the fitting part 17 has a substantially U-shaped groove portion 83 when viewed in horizontal cross section. The groove portion 83 is inserted while sandwiching the edge of the front end engaging edge portion 37 from the front and back. The groove 83 approaches the leading engagement edge 37 of the housing 13 when the fitting 17 is pivoted. The fitting 17 has the tip engaging edge 37 positioned in the slot opening of the slot 83 when the rotating tip 45 approaches the tip engaging edge 37 . When the fitting 17 is pivoted further, it fits into the opening 43 while receiving the leading engagement edge 37 inside the groove 83 .

溝部８３は、嵌合部品１７の回転先端部４５から旋回方向に突出する一対の平行な離間壁により形成される。溝部８３は、この一対の離間壁により、先端係合縁部３７の端縁を表裏から挟む。溝部８３は、離間壁が、嵌合部品１７の回転先端部４５からほぼ旋回方向に延出して形成される。このため、回転先端部４５が旋回しながら溝部８３の内側に先端係合縁部３７を受け入れる際、先端係合縁部３７は離間壁に干渉しにくくなり、溝部８３は止水に十分な深さを確保することができる。そして、嵌合部品１７に当たった水は、嵌合部品１７から離間壁の外面を流れ、溝部８３内には浸入しにくくなる。また、溝部８３と先端係合縁部３７とは、一対の離間壁の間に、先端係合縁部３７の端縁が挿入されるので、水が浸入しにくい屈曲路（迷路構造）を形成できる。これにより、電気接続箱１は、上記した回転受け縁部３５とＶ字回転係合部４７の間、及び回転先端部４５と先端係合縁部３７の間の双方において、矢印Ｗの放水方向からの水の浸入を抑制することができる。 The groove portion 83 is formed by a pair of parallel separation walls protruding from the rotation tip portion 45 of the fitting part 17 in the turning direction. The groove portion 83 sandwiches the edge of the front end engaging edge portion 37 from the front and back sides by the pair of separation walls. The groove portion 83 is formed by a separation wall extending substantially in the turning direction from the rotating distal end portion 45 of the fitting part 17 . Therefore, when the leading end engaging edge portion 37 is received inside the groove portion 83 while the rotary leading end portion 45 is turning, the leading end engaging edge portion 37 is less likely to interfere with the separation wall, and the groove portion 83 is deep enough to stop water. can ensure that Then, the water that hits the fitting part 17 flows from the fitting part 17 on the outer surface of the separation wall and is less likely to enter the groove 83 . In addition, since the edge of the tip engagement edge 37 is inserted between the pair of separation walls, the groove 83 and the tip engagement edge 37 form a curved path (maze structure) that makes it difficult for water to enter. can. As a result, the electric connection box 1 can be discharged in the direction of arrow W both between the rotation receiving edge 35 and the V-shaped rotation engaging portion 47 and between the rotating tip portion 45 and the tip engaging edge 37 . It is possible to suppress the infiltration of water from

次に、本発明の第２実施形態に係る電気接続箱８５について説明する。
図９は、本発明の第２実施形態に係る電気接続箱８５の分解斜視図である。なお、第２実施形態において、第１実施形態で示した部材と同一の部材には同一の符号を付し重複する説明は省略する。
本第２実施形態に係る電気接続箱８５は、回転受け縁部３５が湾曲起立壁８７を有し、回転係合部３９が軸部８９を有する点が第１実施形態と異なる。他の構成は、第１実施形態とほぼ同じである。 Next, an electrical connection box 85 according to a second embodiment of the invention will be described.
FIG. 9 is an exploded perspective view of an electric connection box 85 according to a second embodiment of the invention. In addition, in the second embodiment, the same members as those shown in the first embodiment are denoted by the same reference numerals, and overlapping descriptions are omitted.
The electric connection box 85 according to the second embodiment differs from the first embodiment in that the rotation receiving edge portion 35 has a curved standing wall 87 and the rotation engaging portion 39 has a shaft portion 89 . Other configurations are substantially the same as those of the first embodiment.

図１０は、図９に示した筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合途中となった電気接続箱８５の要部概略平面図である。
回転受け縁部３５は、嵌合保持部１５を開放して側面に形成された開口部４３の一方の鉛直方向に沿う方向の縁部に形成される。第２実施形態において、回転受け縁部３５は、筐体１３の開口部４３に臨む一方の側壁３１の縁部に突出して形成された水平断面視弧状の湾曲起立壁８７を有する。この回転受け縁部３５の湾曲起立壁８７は、嵌合部品１７の回転係合部３９と係合する。 FIG. 10 is a schematic plan view of the electrical connection box 85 in which the fitting part 17 is in the middle of fitting to the fitting holding portion 15 of the housing 13 shown in FIG.
The rotation receiving edge portion 35 is formed at one edge portion along the vertical direction of the opening portion 43 formed on the side surface of the fitting holding portion 15 . In the second embodiment, the rotation receiving edge portion 35 has a curved standing wall 87 that protrudes from the edge portion of one of the side walls 31 facing the opening 43 of the housing 13 and has an arc shape in horizontal cross-section. The curved upright wall 87 of this rotation receiving edge 35 engages with the rotation engaging portion 39 of the fitting part 17 .

一方、嵌合部品１７に設けられる回転係合部３９は、回転受け縁部３５に沿う軸部８９を有する。この軸部８９は、湾曲起立壁８７の内側曲面９１（図１１参照）に当接して回転受け縁部３５を中心にこの周りを回る。 On the other hand, the rotation engaging portion 39 provided on the fitting part 17 has a shaft portion 89 along the rotation receiving edge portion 35 . The shaft portion 89 contacts the inner curved surface 91 (see FIG. 11) of the curved upright wall 87 and rotates around the rotation receiving edge portion 35 .

図１１は、図１０に示した回転受け縁部３５及び回転係合部３９の要部拡大図である。
軸部８９は、外周から半径方向外側に突出して軸部８９に沿って延在する二つの縦壁部９３と縦壁部９５とにより嵌合部品１７に支持されている。先端が軸部８９に接続された縦壁部９３と縦壁部９５は、基端が、嵌合部品１７の外側面から起立して設けられる支持湾曲壁９７の内側曲面９９に接続される。これにより、軸部８９は、支持湾曲壁９７を介して嵌合部品１７の外側面に支持されている。 FIG. 11 is an enlarged view of a main portion of the rotation receiving edge portion 35 and the rotation engaging portion 39 shown in FIG.
The shaft portion 89 is supported on the fitting part 17 by two vertical wall portions 93 and 95 that protrude radially outward from the outer circumference and extend along the shaft portion 89 . The vertical wall portion 93 and the vertical wall portion 95 whose distal ends are connected to the shaft portion 89 are connected, at their proximal ends, to the inner curved surface 99 of the support curved wall 97 provided upright from the outer surface of the fitting part 17 . Thereby, the shaft portion 89 is supported by the outer surface of the fitting part 17 via the support curved wall 97 .

支持湾曲壁９７は、起立先端側が、湾曲起立壁８７の起立先端を覆うように重なる。即ち、湾曲起立壁８７と支持湾曲壁９７とは、先端同士が重なり段差のある略半円筒状となって閉じる。これにより、支持湾曲壁９７は、矢印Ｗ方向の放水による水が、湾曲起立壁８７と軸部８９の間に浸入しにくくなっている。 The support curved wall 97 is overlapped so that the upright tip side of the support curved wall 97 covers the upright tip of the curved upright wall 87 . In other words, the curved upright wall 87 and the curved support wall 97 overlap each other at their tips to form a substantially semi-cylindrical shape with a step and close. As a result, the support curved wall 97 makes it difficult for water discharged in the direction of arrow W to enter between the curved upstanding wall 87 and the shaft portion 89 .

図１２は、高さ出し突起４１である段部１０１を要部拡大図と共に表した筐体１３の要部側面図である。
高さ出し突起４１は、回転受け縁部３５に形成される。高さ出し突起４１は、回転受け縁部３５に沿う回転係合部３９の下方向の移動を途中で規制する。また、高さ出し突起４１は、嵌合部品１７の閉止位置では、回転係合部３９の下方向の移動規制を解除する。 FIG. 12 is a main part side view of the housing 13 showing the stepped part 101 which is the heightening projection 41 together with an enlarged view of the main part.
The elevation projection 41 is formed on the rotation receiving edge portion 35 . The heightening projection 41 restricts the downward movement of the rotation engaging portion 39 along the rotation receiving edge portion 35 midway. Further, the heightening protrusion 41 releases the downward movement restriction of the rotation engaging portion 39 when the fitting part 17 is in the closed position.

回転受け縁部３５が軸部８９の場合、高さ出し突起４１は、段部１０１となる。段部１０１は、湾曲起立壁８７の下端に設けられる。湾曲起立壁８７は、略円筒形状の下端を除く上側を切り欠くことにより、略半円筒形状に形成されている。段部１０１は、この切り欠かれていない略円筒形状の下端において、残された略円筒形状部分として形成される。 When the rotation receiving edge portion 35 is the shaft portion 89 , the heightening projection 41 becomes the stepped portion 101 . The stepped portion 101 is provided at the lower end of the curved standing wall 87 . The curved standing wall 87 is formed in a substantially semi-cylindrical shape by notching the upper side of the substantially cylindrical shape except for the lower end. The stepped portion 101 is formed as a remaining substantially cylindrical portion at the unnotched lower end of the substantially cylindrical shape.

段部１０１は、略円筒形状部分から更に下方に切り込まれる落とし込みスリット１０３を有している。落とし込みスリット１０３は、嵌合部品１７が開口部４３を閉鎖する閉鎖位置まで旋回されると、一方の縦壁部９５が、組付ストロークＳ分落ち込む。即ち、落とし込みスリット１０３は、嵌合部品１７が開口部４３を閉鎖したとき、縦壁部９５と一致する位置に設けられている。段部１０１から外れた縦壁部９５は、落とし込みスリット１０３に落ちることにより、組付ストロークＳの下降が可能となる。なお、他方の縦壁部９３は、下端が縦壁部９５よりも上方に位置するように形成される。縦壁部９３は、縦壁部９５が落とし込みスリット１０３に下降すると、段部１０１に載置されることとなる。 The stepped portion 101 has a drop slit 103 further cut downward from the substantially cylindrical portion. One vertical wall portion 95 of the drop-in slit 103 drops by the assembling stroke S when the fitting part 17 is turned to the closed position to close the opening 43 . That is, the drop-in slit 103 is provided at a position aligned with the vertical wall portion 95 when the fitting part 17 closes the opening portion 43 . The vertical wall portion 95 deviated from the stepped portion 101 falls into the drop-in slit 103, so that the assembling stroke S can be lowered. The other vertical wall portion 93 is formed such that its lower end is located above the vertical wall portion 95 . The vertical wall portion 93 is placed on the stepped portion 101 when the vertical wall portion 95 descends into the drop-in slit 103 .

図１３は、筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合した電気接続箱８５の要部概略平面図である。
嵌合保持部１５に嵌合部品１７が固定された筐体１３は、嵌合部品１７により嵌合保持部１５の開口部４３が閉鎖される。電気接続箱８５は、放水方向が右斜め前方（矢印Ｗ）からとなる車載位置に取り付けられる。放水方向の下流側に位置する支持湾曲壁９７は、放水方向と反対側に内側曲面９９が向くことにより、放水時の水が軸部８９の外周に浸入しにくくなっている。 FIG. 13 is a schematic plan view of the electrical connection box 85 in which the fitting part 17 is fitted to the fitting holding portion 15 of the housing 13. FIG.
In the housing 13 in which the fitting part 17 is fixed to the fitting holding part 15 , the opening part 43 of the fitting holding part 15 is closed by the fitting part 17 . The electrical junction box 85 is installed in a vehicle-mounted position such that water is discharged diagonally from the front right (arrow W). The support curved wall 97 positioned downstream in the water discharge direction has an inner curved surface 99 facing in the direction opposite to the water discharge direction, thereby making it difficult for water to enter the outer circumference of the shaft portion 89 during water discharge.

次に、上記した第２実施形態に係る電気接続箱８５の作用を説明する。
本第２実施形態の電気接続箱１では、筐体１３の側面に設けられる回転受け縁部３５が、水平断面視弧状の湾曲起立壁８７を有する。湾曲起立壁８７は、回転受け縁部３５に沿う方向の略円筒形状の下端を除く上側を略半円筒形状に切り欠いて形成される。切り欠かれていない下端は、略円筒形状が残ることにより段部１０１が形成される。この段部１０１は、更に落とし込みスリット１０３を有する。落とし込みスリット１０３を有したこの段部１０１は、高さ出し突起４１となる。即ち、湾曲起立壁８７は、上側を略半円筒形状に切り欠き、下端を略円筒形状の段部１０１として残し、更に落とし込みスリット１０３を設けている。これにより、湾曲起立壁８７は、回転係合部３９の縦壁部９５が係合及び係合解除可能となる形状に形成されている。 Next, the operation of the electrical connection box 85 according to the second embodiment will be described.
In the electrical connection box 1 of the second embodiment, the rotation receiving edge 35 provided on the side surface of the housing 13 has a curved upright wall 87 that is arcuate in horizontal cross-section. The curved upright wall 87 is formed by notching the upper side of the upper side except for the lower end of the substantially cylindrical shape in the direction along the rotation receiving edge 35 into a substantially semi-cylindrical shape. A stepped portion 101 is formed at the unnotched lower end by leaving a substantially cylindrical shape. This stepped portion 101 further has a drop slit 103 . The stepped portion 101 having the drop-in slit 103 serves as the heightening projection 41 . That is, the curved upright wall 87 has a substantially semi-cylindrical notch on the upper side, a substantially cylindrical stepped portion 101 on the lower end, and a drop slit 103 . Thereby, the curved standing wall 87 is formed in a shape that allows the vertical wall portion 95 of the rotary engaging portion 39 to be engaged and disengaged.

一方、回転係合部３９は、湾曲起立壁８７の内側曲面９１に当接する軸部８９を有する。軸部８９は、回転受け縁部３５に軸線が沿う方向の軸となる。湾曲起立壁８７の内側曲面９１と、内側曲面９１に外周面を当接した軸部８９とは、一つの回転中心を中心とした同軸に配置される。軸部８９を湾曲起立壁８７の内側曲面９１に当てた嵌合部品１７は、この回転中心を中心に旋回される。この際、回転係合部３９は、縦壁部９５の下端が段部１０１に乗った状態で回転される。なお、この状態で縦壁部９３は、段部１０１から浮上している。 On the other hand, the rotary engaging portion 39 has a shaft portion 89 that contacts the inner curved surface 91 of the curved upright wall 87 . The shaft portion 89 serves as a shaft in a direction along which the axis line of the rotation receiving edge portion 35 is aligned. The inner curved surface 91 of the curved rising wall 87 and the shaft portion 89 whose outer peripheral surface is in contact with the inner curved surface 91 are arranged coaxially about one rotation center. The fitting part 17 with the shaft portion 89 in contact with the inner curved surface 91 of the curved upright wall 87 is turned around this center of rotation. At this time, the rotary engaging portion 39 is rotated while the lower end of the vertical wall portion 95 rests on the stepped portion 101 . In this state, the vertical wall portion 93 is floating above the stepped portion 101 .

嵌合部品１７は、旋回されて開口部４３に嵌合されると、回転係合部３９における縦壁部９５の下端が段部１０１から外れて、落とし込みスリット１０３に落ち込む。段部１０１から縦壁部９５が外れた回転係合部３９は、組付ストロークＳ分の下降が可能となる。このとき、縦壁部９３は、段部１０１に当接する。 When the fitting part 17 is turned and fitted into the opening 43 , the lower end of the vertical wall portion 95 of the rotary engaging portion 39 is disengaged from the stepped portion 101 and falls into the dropping slit 103 . The rotary engagement portion 39 with the vertical wall portion 95 separated from the stepped portion 101 can be lowered by the assembling stroke S. At this time, the vertical wall portion 93 contacts the stepped portion 101 .

湾曲起立壁８７は、内側曲面９１に軸部８９の外周が当たるため、軸部８９の回転中心ずれを抑制できる。これにより、嵌合部品１７は、正規の旋回軌道でガイドされ、開口部４３に嵌合しやすくなる。 Since the curved upright wall 87 contacts the inner curved surface 91 with the outer periphery of the shaft portion 89 , it is possible to suppress deviation of the rotation center of the shaft portion 89 . As a result, the fitting part 17 is guided along a normal turning orbit, and can be easily fitted into the opening 43 .

次に、本発明の第３実施形態に係る電気接続箱１０５について説明する。
図１４は、本発明の第３実施形態に係る電気接続箱１０５の分解斜視図である。なお、第３実施形態において、第１実施形態で示した部材と同一の部材には同一の符号を付し重複する説明は省略する。
本第３実施形態に係る電気接続箱１０５は、回転受け縁部３５が筒壁１０７を有し、回転係合部３９が弧状壁部１０９を有する点が第１実施形態と異なる。他の構成は、第１実施形態とほぼ同じである。 Next, an electrical connection box 105 according to a third embodiment of the invention will be described.
FIG. 14 is an exploded perspective view of an electric connection box 105 according to a third embodiment of the invention. In addition, in the third embodiment, members that are the same as those shown in the first embodiment are denoted by the same reference numerals, and overlapping descriptions are omitted.
The electrical connection box 105 according to the third embodiment differs from the first embodiment in that the rotation receiving edge portion 35 has a cylindrical wall 107 and the rotation engaging portion 39 has an arcuate wall portion 109 . Other configurations are substantially the same as those of the first embodiment.

図１５は、図１４に示した筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合途中となった電気接続箱１０５の要部概略平面図である。
回転受け縁部３５は、嵌合保持部１５を開放して側面に形成された開口部４３の一方の鉛直方向に沿う方向の縁部に形成される。第３実施形態において、回転受け縁部３５は、開口部４３に臨む一方の側壁３１の縁部に突出して形成された水平断面視略半円筒状の筒壁１０７を有する。この回転受け縁部３５の筒壁１０７は、嵌合部品１７の回転係合部３９と係合する。 FIG. 15 is a schematic plan view of the electrical connection box 105 in which the fitting part 17 is in the process of being fitted to the fitting holding portion 15 of the housing 13 shown in FIG. 14 .
The rotation receiving edge portion 35 is formed at one edge portion along the vertical direction of the opening portion 43 formed on the side surface of the fitting holding portion 15 . In the third embodiment, the rotation receiving edge portion 35 has a cylinder wall 107 which is substantially semi-cylindrical in horizontal cross-section and which protrudes from the edge portion of one side wall 31 facing the opening portion 43 . The cylindrical wall 107 of the rotation receiving edge 35 engages with the rotation engaging portion 39 of the fitting part 17 .

図１６は、図１５に示した回転受け縁部３５及び回転係合部３９の要部拡大図である。
一方、嵌合部品１７に設けられる回転係合部３９は、回転受け縁部３５に沿う弧状壁部１０９を有する。この弧状壁部１０９は、内側曲面１１１を筒壁１０７の外周に当接して回転受け縁部３５を中心にこの周りを回る。 FIG. 16 is an enlarged view of the main parts of the rotation receiving edge 35 and the rotation engaging portion 39 shown in FIG.
On the other hand, the rotation engaging portion 39 provided on the fitting part 17 has an arcuate wall portion 109 along the rotation receiving edge portion 35 . The arcuate wall portion 109 rotates around the rotation receiving edge portion 35 with the inner curved surface 111 in contact with the outer circumference of the cylinder wall 107 .

図１７は、図１６に示した筒壁１０７の要部拡大図である。
水平断面視略半円筒状の筒壁１０７は、Ｃ字形状となり、Ｃ字の開口部側の一端が、開口部４３の縁部に沿って接続される。この筒壁１０７の外周は、円周面となっている。即ち、略半割の半円軸が開口部４３の縁部に沿って設けられている。 FIG. 17 is an enlarged view of a main part of cylinder wall 107 shown in FIG.
The cylindrical wall 107 , which is approximately semi-cylindrical in horizontal cross-section, has a C shape, and one end of the C shape on the side of the opening is connected along the edge of the opening 43 . The outer circumference of this cylindrical wall 107 is a circular surface. That is, a substantially half-circular shaft is provided along the edge of the opening 43 .

図１８は、図１６に示した筒壁１０７及び弧状壁部１０９の要部平面図である。
回転係合部３９の弧状壁部１０９は、筒壁１０７の外周面と同一半径の内側曲面１１１を有する。弧状壁部１０９は、筒壁１０７の外周方向の長さよりも、円弧方向の長さが短く形成される。即ち、弧状壁部１０９は、内側曲面１１１を筒壁１０７の外周に当接して、この円弧方向の長さが短い分、筒壁１０７の周りを回転が可能となっている。 FIG. 18 is a plan view of essential parts of the cylindrical wall 107 and the arcuate wall portion 109 shown in FIG.
The arcuate wall portion 109 of the rotary engaging portion 39 has an inner curved surface 111 with the same radius as the outer peripheral surface of the tubular wall 107 . The arc-shaped wall portion 109 is formed to have a length in the arc direction shorter than the length in the outer peripheral direction of the cylinder wall 107 . That is, the arcuate wall portion 109 abuts the inner curved surface 111 on the outer circumference of the cylinder wall 107, and is rotatable around the cylinder wall 107 due to the short length in the arc direction.

弧状壁部１０９は、筒壁１０７を外周側から覆って配置される。弧状壁部１０９は、嵌合部品１７から水平断面視略半円形状となって延出し、筒壁１０７を覆う。弧状壁部１０９は、嵌合部品１７が開口部４３を閉鎖したとき、矢印Ｗの放水方向と反対側に筒壁１０７の外周を表出させる。即ち、筒壁１０７の外周と、弧状壁部１０９の内側曲面１１１との間に水が浸入しにくくなっている。 The arcuate wall portion 109 is arranged to cover the cylindrical wall 107 from the outer peripheral side. The arcuate wall portion 109 extends from the fitting part 17 in a substantially semicircular shape in a horizontal cross-sectional view and covers the cylinder wall 107 . The arcuate wall portion 109 exposes the outer periphery of the cylinder wall 107 on the side opposite to the water discharge direction of the arrow W when the fitting part 17 closes the opening 43 . That is, it is difficult for water to enter between the outer circumference of the cylindrical wall 107 and the inner curved surface 111 of the arcuate wall portion 109 .

図１９は、高さ出し突起４１である支持突起１１３を要部拡大図と共に表した筐体１３の要部側面図である。
高さ出し突起４１は、回転受け縁部３５に形成される。高さ出し突起４１は、回転受け縁部３５に沿う回転係合部３９の下方向の移動を途中で規制する。また、高さ出し突起４１は、嵌合部品１７の閉止位置では、回転係合部３９の下方向の移動規制を解除する。 FIG. 19 is a main part side view of the housing 13 showing the support projection 113 which is the heightening projection 41 together with an enlarged view of the main part.
The elevation projection 41 is formed on the rotation receiving edge portion 35 . The heightening projection 41 restricts the downward movement of the rotation engaging portion 39 along the rotation receiving edge portion 35 midway. Further, the heightening protrusion 41 releases the downward movement restriction of the rotation engaging portion 39 when the fitting part 17 is in the closed position.

回転係合部３９が弧状壁部１０９の場合、高さ出し突起４１は、支持突起１１３となる。支持突起１１３は、弧状壁部１０９の下端縁を載置するため、回転受け縁部３５の側面から突出する。この支持突起１１３は、嵌合部品１７が開口部４３を閉鎖する位置まで旋回されると、弧状壁部１０９から外れる位置に設けられている。支持突起１１３から下端が外れた弧状壁部１０９は、組付ストロークＳ（図６参照）の下降が可能となる。 When the rotary engaging portion 39 is the arcuate wall portion 109 , the heightening projection 41 becomes the supporting projection 113 . A support projection 113 protrudes from the side surface of the rotation receiving edge 35 to rest the lower edge of the arcuate wall portion 109 thereon. This support projection 113 is provided at a position where it is disengaged from the arcuate wall portion 109 when the fitting part 17 is turned to a position that closes the opening 43 . The arc-shaped wall portion 109, the lower end of which is separated from the support projection 113, can be lowered by the assembly stroke S (see FIG. 6).

図２０は、筐体１３の嵌合保持部１５に対し嵌合部品１７が嵌合した電気接続箱１０５の要部概略平面図である。
嵌合保持部１５に嵌合部品１７が固定された筐体１３は、嵌合部品１７により嵌合保持部１５の開口部４３が閉鎖される。電気接続箱１０５は、放水方向が右斜め前方（矢印Ｗ）からとなる車載位置に取り付けられる。放水方向の下流側に位置する弧状壁部１０９は、放水方向と反対側に内側曲面１１１の開放側が向くことにより、放水時の水が筒壁１０７の外周と弧状壁部１０９の内側曲面１１１との間に浸入しにくくなっている。 FIG. 20 is a schematic plan view of the electrical connection box 105 in which the fitting part 17 is fitted to the fitting holding portion 15 of the housing 13. FIG.
In the housing 13 in which the fitting part 17 is fixed to the fitting holding part 15 , the opening part 43 of the fitting holding part 15 is closed by the fitting part 17 . The electric junction box 105 is installed in a vehicle-mounted position such that water is discharged diagonally from the front right (arrow W). The arcuate wall portion 109 positioned downstream in the water discharge direction has an open side of the inner curved surface 111 facing the opposite side of the water discharge direction, so that water at the time of water discharge flows between the outer circumference of the tubular wall 107 and the inner curved surface 111 of the arcuate wall portion 109 . It is difficult to penetrate between

次に、上記した第３実施形態に係る電気接続箱１０５の作用を説明する。
この電気接続箱１では、回転受け縁部３５が、水平断面視略半円筒状の筒壁１０７を有する。筒壁１０７は、Ｃ字形状となり、Ｃ字の開口部側の一端が、開口部４３の縁部に接続される。この筒壁１０７の外周は、円周面となっている。 Next, the operation of the electrical connection box 105 according to the third embodiment will be described.
In this electrical connection box 1, the rotation receiving edge portion 35 has a cylinder wall 107 that is substantially semi-cylindrical in horizontal cross-section. The cylindrical wall 107 is C-shaped, and one end of the C-shaped opening is connected to the edge of the opening 43 . The outer circumference of this cylindrical wall 107 is a circular surface.

一方、回転係合部３９は、弧状壁部１０９を有する。弧状壁部１０９は、筒壁１０７の外周方向の長さよりも、円弧方向の長さが短く形成される。これにより、弧状壁部１０９は、筒壁１０７の周りを回転が可能となっている。 On the other hand, the rotary engaging portion 39 has an arcuate wall portion 109 . The arc-shaped wall portion 109 is formed to have a length in the arc direction shorter than the length in the outer peripheral direction of the cylinder wall 107 . This allows the arcuate wall portion 109 to rotate around the tubular wall 107 .

筒壁１０７と、筒壁１０７の外周に内側曲面１１１を当接した弧状壁部１０９とは、一つの回転中心を中心とした同軸に配置される。弧状壁部１０９を筒壁１０７の外周面に当てた嵌合部品１７は、この回転中心を中心に旋回される。この際、弧状壁部１０９は、下端が、筒壁１０７の一部分から半径方向外側に突出した支持突起１１３に乗った状態で回転される。 The cylindrical wall 107 and the arcuate wall portion 109 that abuts the inner curved surface 111 on the outer periphery of the cylindrical wall 107 are arranged coaxially about one rotation center. The fitting part 17 with the arc-shaped wall portion 109 in contact with the outer peripheral surface of the cylinder wall 107 is turned around this center of rotation. At this time, the arcuate wall portion 109 is rotated while its lower end rests on the support projection 113 protruding radially outward from a portion of the cylinder wall 107 .

嵌合部品１７は、旋回されて開口部４３に嵌合されると、弧状壁部１０９の下端が支持突起１１３から外れる。支持突起１１３から下端が外れた弧状壁部１０９は、組付ストロークの下降が可能となる。 When the fitting part 17 is turned and fitted into the opening 43 , the lower end of the arcuate wall portion 109 is disengaged from the support projection 113 . The arc-shaped wall portion 109 whose lower end is separated from the support projection 113 can be lowered in the assembly stroke.

弧状壁部１０９は、内側曲面１１１を筒壁１０７の外周に当てるため、弧状壁部１０９の回転中心ずれを抑制できる。これにより、嵌合部品１７は、正規の旋回軌道でガイドされ、開口部４３に嵌合しやすくなっている。 Since the arcuate wall portion 109 abuts the inner curved surface 111 against the outer circumference of the cylindrical wall 107, the displacement of the rotation center of the arcuate wall portion 109 can be suppressed. As a result, the fitting part 17 is guided along a normal turning orbit and can be easily fitted into the opening 43 .

また、弧状壁部１０９は、嵌合部品１７が開口部４３に嵌合した状態で、筒壁１０７を円周方向の半分以上の長さで覆う。ここで、弧状壁部１０９は、筒壁１０７と同様にＣ字形状となり、Ｃ字の開口部側の一端が嵌合部品１７に接続される。このため、弧状壁部１０９は、嵌合部品１７から水平断面視略半円形状となって延出し、筒壁１０７を覆う。即ち、開口部４３の縁部に設けられた筒壁１０７は、嵌合部品１７から延出した弧状壁部１０９により連続面で覆われることになる。これにより、嵌合部品１７に当たった水は、嵌合部品１７から弧状壁部１０９の表面を流れ、筒壁１０７には直接当たらないように構成されている。その結果、この筒壁１０７と弧状壁部１０９との摺接構造では、嵌合部品１７に当たった水を、開口部４３に浸入しにくくできる。 Further, the arcuate wall portion 109 covers the cylinder wall 107 over half or more of its length in the circumferential direction when the fitting part 17 is fitted in the opening 43 . Here, the arcuate wall portion 109 has a C shape like the cylindrical wall 107 , and one end of the C shape on the opening side is connected to the fitting part 17 . Therefore, the arcuate wall portion 109 extends from the fitting part 17 in a substantially semicircular shape in a horizontal cross-sectional view and covers the cylinder wall 107 . That is, the cylindrical wall 107 provided at the edge of the opening 43 is covered with a continuous surface by the arcuate wall 109 extending from the fitting part 17 . As a result, the water hitting the fitting part 17 flows from the fitting part 17 on the surface of the arcuate wall portion 109 and does not directly hit the cylinder wall 107 . As a result, in this sliding contact structure between the tubular wall 107 and the arcuate wall portion 109 , it is possible to prevent water that hits the fitting part 17 from entering the opening 43 .

従って、本実施形態に係る電気接続箱１、電気接続箱８５及び電気接続箱１０５によれば、筐体１３の嵌合保持部１５に嵌合部品１７を容易に組付けることができる。 Therefore, according to the electrical junction box 1, the electrical junction box 85, and the electrical junction box 105 according to this embodiment, the fitting component 17 can be easily assembled to the fitting holding portion 15 of the housing 13. FIG.

本発明は上記の実施形態に限定されるものではなく、実施形態の各構成を相互に組み合わせることや、明細書の記載、並びに周知の技術に基づいて、当業者が変更、応用することも本発明の予定するところであり、保護を求める範囲に含まれる。 The present invention is not limited to the above-described embodiments, and it is also possible for those skilled in the art to combine each configuration of the embodiments with each other, modify and apply based on the description of the specification and well-known technology. It is intended by the invention and falls within the scope for which protection is sought.

ここで、上述した本発明に係る電気接続箱の実施形態の特徴をそれぞれ以下［１］～［５］に簡潔に纏めて列記する。
［１］ 電子部品（３）と前記電子部品（３）に電気的に接続される電線（５）とが組付けられた嵌合部品（１７）と、前記嵌合部品（１７）を嵌合及び保持する嵌合保持部（１５）が上面と側面とに渡って開口された筐体（１３）と、前記嵌合保持部（１５）を開放して前記側面に形成された開口部（４３）の鉛直方向に沿う方向の回転受け縁部（３５）及び先端係合縁部（３７）と、前記嵌合部品（１７）に形成され、前記開口部（４３）に対する前記嵌合部品（１７）の開放位置で前記回転受け縁部（３５）に当接するとともに前記回転受け縁部（３５）を中心にこの周りを回ることで前記嵌合部品（１７）を旋回させる回転係合部（３９）と、前記回転受け縁部（３５）に形成され、前記回転受け縁部（３５）に沿う前記回転係合部（３９）の下方向の移動を旋回途中で規制するとともに前記嵌合部品（１７）の閉止位置では前記規制を解除する高さ出し突起（４１）と、前記筐体（１３）と前記嵌合部品（１７）との間に設けられ、前記規制が解除されて下降した前記嵌合部品（１７）を前記筐体（１３）に係合固定するロック部（第１～第４ロック部５９，６１，６３，６５）と、を備えることを特徴とする電気接続箱（１）。
［２］ 前記回転係合部（３９）が、水平断面視略Ｖ字状に形成され、この略Ｖ字状の底部を前記回転受け縁部（３５）に当接して前記回転受け縁部（３５）を中心にこの周りを回ることを特徴とする上記［１］に記載の電気接続箱（１，８５，１０５）。
［３］ 前記回転受け縁部（３５）が、水平断面視弧状の湾曲起立壁（８７）を有し、前記回転係合部（３９）が、前記回転受け縁部（３５）に沿う軸部（８９）を有し、前記軸部（８９）を前記湾曲起立壁（８７）の内側曲面（９１）に当接して前記回転受け縁部（３５）を中心にこの周りを回ることを特徴とする上記［１］に記載の電気接続箱（８５）。
［４］ 前記回転受け縁部（３５）が、水平断面視略半円筒状の筒壁（１０７）を有し、前記回転係合部（３９）が、前記筒壁（１０７）に内側曲面（１１１）を当接する弧状壁部（１０９）を有し、前記弧状壁部（１０９）の内側曲面（１１１）を前記筒壁（１０７）の外周に当接して前記回転受け縁部（３５）を中心にこの周りを回ることを特徴とする上記［１］に記載の電気接続箱（１０５）。
［５］ 前記筐体（１３）の前記先端係合縁部（３７）に当接する前記嵌合部品（１７）の回転先端部（４５）が、前記先端係合縁部（３７）の端縁を表裏から挟んで挿入する水平断面視略Ｕ字状の溝部（８３）を有することを特徴とする上記［１］～［４］のいずれか一つに記載の電気接続箱（１，８５，１０５）。 Here, the features of the embodiments of the electrical connection box according to the present invention described above are summarized and listed briefly in [1] to [5] below.
[1] A fitting part (17) in which an electronic part (3) and an electric wire (5) electrically connected to the electronic part (3) are assembled, and the fitting part (17) are fitted together. and a housing (13) in which a fitting holding portion (15) for holding is opened over the upper surface and the side surface, and an opening (43) formed in the side surface by opening the fitting holding portion (15). ) along the vertical direction of the rotation receiving edge (35) and the tip engagement edge (37) and the fitting part (17) formed in the fitting part (17) to the opening (43). ) is in contact with the rotation receiving edge (35) and rotates around the rotation receiving edge (35) to turn the fitting part (17). ) and the fitting part ( 17), the raised protrusion (41) for releasing the regulation is provided between the housing (13) and the fitting part (17), and the regulation is released to lower the height projection (41). An electrical junction box (1) comprising lock portions (first to fourth lock portions 59, 61, 63, 65) for engaging and fixing the fitting part (17) to the housing (13). ).
[2] The rotation engaging portion (39) is formed in a substantially V-shaped horizontal cross-sectional view, and the bottom portion of the substantially V-shaped abuts against the rotation receiving edge (35). 35), the electric connection box (1, 85, 105) according to the above [1], which rotates around this center.
[3] The rotation receiving edge (35) has an arc-shaped curved upright wall (87) when viewed horizontally, and the rotation engaging portion (39) is a shaft along the rotation receiving edge (35). (89), wherein the shaft (89) contacts the inner curved surface (91) of the curved upright wall (87) and revolves around the rotation receiving edge (35). The electric connection box (85) according to the above [1].
[4] The rotation receiving edge (35) has a cylinder wall (107) that is substantially semi-cylindrical in horizontal cross-section, and the rotation engaging part (39) is formed with an inner curved surface (107) on the cylinder wall (107). 111), and the inner curved surface (111) of the arcuate wall (109) abuts against the outer periphery of the cylindrical wall (107) to support the rotation receiving edge (35). The electric connection box (105) according to the above [1], which is characterized by rotating around the center.
[5] The rotating tip (45) of the fitting part (17) contacting the tip engaging edge (37) of the housing (13) is the edge of the tip engaging edge (37). The electrical connection box (1, 85, 85, 85, 85, 85, 85, 105).

１…電気接続箱
３…電子部品
５…電線
１３…筐体
１５…嵌合保持部
１７…嵌合部品
３５…回転受け縁部
３７…先端係合縁部
３９…回転係合部
４１…高さ出し突起
４３…開口部
４５…回転先端部
５３…底部
５９…第１ロック部（ロック部）
６１…第２ロック部（ロック部）
６３…第３ロック部（ロック部）
６５…第４ロック部（ロック部）
８３…溝部 DESCRIPTION OF SYMBOLS 1... Electrical connection box 3... Electronic component 5... Electric wire 13... Case 15... Fitting holding part 17... Fitting part 35... Rotation receiving edge part 37... Tip engagement edge part 39... Rotation engagement part 41... Height Protrusion 43...Opening 45...Rotating tip 53...Bottom 59...First locking part (locking part)
61...Second lock portion (lock portion)
63... Third lock portion (lock portion)
65... Fourth lock portion (lock portion)
83... Grooves

Claims (5)

電子部品と前記電子部品に電気的に接続される電線とが組付けられた嵌合部品と、前記嵌合部品を嵌合及び保持する嵌合保持部が上面と側面とに渡って開口された筐体と、
前記嵌合保持部を開放して前記側面に形成された開口部の鉛直方向に沿う方向の回転受け縁部及び先端係合縁部と、
前記嵌合部品に形成され、前記開口部に対する前記嵌合部品の開放位置で前記回転受け縁部に当接するとともに前記回転受け縁部を中心にこの周りを回ることで前記嵌合部品を旋回させる回転係合部と、
前記回転受け縁部に形成され、前記回転受け縁部に沿う前記回転係合部の下方向の移動を旋回途中で規制するとともに前記嵌合部品の閉止位置では前記規制を解除する高さ出し突起と、
前記筐体と前記嵌合部品との間に設けられ、前記規制が解除されて下降した前記嵌合部品を前記筐体に係合固定するロック部と、
を備えることを特徴とする電気接続箱。 A fitting part in which an electronic part and an electric wire electrically connected to the electronic part are assembled, and a fitting holding part for fitting and holding the fitting part are opened over an upper surface and a side surface. a housing;
a rotation receiving edge portion and a leading end engaging edge portion in a direction along the vertical direction of the opening formed in the side surface by releasing the fitting and holding portion;
formed on the fitting part and abutting against the rotation receiving edge in the open position of the fitting part with respect to the opening and turning around the rotation receiving edge to turn the fitting part; a rotary engagement portion;
A heightening protrusion formed on the rotation receiving edge for restricting the downward movement of the rotation engaging portion along the rotation receiving edge during turning and for releasing the restriction when the fitting part is closed. and,
a locking part provided between the housing and the fitting part for engaging and fixing the fitting part that has been lowered by releasing the restriction to the housing;
An electrical junction box comprising: 前記回転係合部が、水平断面視略Ｖ字状に形成され、この略Ｖ字状の底部を前記回転受け縁部に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする請求項１に記載の電気接続箱。 The rotation engaging portion is formed in a substantially V-shaped horizontal cross-sectional view, and rotates around the rotation receiving edge while the bottom of the substantially V shape abuts against the rotation receiving edge. The electric connection box according to claim 1, wherein 前記回転受け縁部が、水平断面視弧状の湾曲起立壁を有し、
前記回転係合部が、前記回転受け縁部に沿う軸部を有し、前記軸部を前記湾曲起立壁の内側曲面に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする請求項１に記載の電気接続箱。 The rotation receiving edge has an arc-shaped curved standing wall when viewed in horizontal cross section,
The rotation engaging portion has a shaft along the rotation receiving edge, and rotates around the rotation receiving edge while contacting the inner curved surface of the curved upright wall. The electric connection box according to claim 1, wherein 前記回転受け縁部が、水平断面視略半円筒状の筒壁を有し、
前記回転係合部が、前記筒壁に内側曲面を当接する弧状壁部を有し、前記弧状壁部の内側曲面を前記筒壁の外周に当接して前記回転受け縁部を中心にこの周りを回ることを特徴とする請求項１に記載の電気接続箱。 The rotation receiving edge has a substantially semi-cylindrical cylindrical wall in a horizontal cross-sectional view,
The rotation engaging portion has an arcuate wall portion with an inner curved surface in contact with the cylinder wall, and the inner curved surface of the arcuate wall portion is in contact with the outer circumference of the cylinder wall to rotate around the rotation receiving edge portion. 2. The electric connection box according to claim 1, wherein the electric junction box is arranged around the . 前記筐体の前記先端係合縁部に当接する前記嵌合部品の回転先端部が、前記先端係合縁部の端縁を表裏から挟んで挿入する水平断面視略Ｕ字状の溝部を有することを特徴とする請求項１～請求項４のいずれか一項に記載の電気接続箱。 The rotating tip portion of the fitting part that abuts the tip engaging edge portion of the housing has a substantially U-shaped groove in a horizontal cross-sectional view into which the end edge of the tip engaging edge portion is sandwiched from the front and back. The electrical connection box according to any one of claims 1 to 4, characterized in that:
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