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JP2019041516A - Electrical connection box lock structure - Google Patents

Electrical connection box lock structure Download PDF

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Publication number
JP2019041516A
JP2019041516A JP2017162926A JP2017162926A JP2019041516A JP 2019041516 A JP2019041516 A JP 2019041516A JP 2017162926 A JP2017162926 A JP 2017162926A JP 2017162926 A JP2017162926 A JP 2017162926A JP 2019041516 A JP2019041516 A JP 2019041516A
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locked
locking
lock
insertion direction
cover
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JP6937193B2 (en
Inventor
弘 木村
Hiroshi Kimura
弘 木村
清水 一宏
Kazuhiro Shimizu
一宏 清水
康太郎 栗田
Kotaro Kurita
康太郎 栗田
真吾 飯田
Shingo Iida
真吾 飯田
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Sumitomo Wiring Systems Ltd
Suzuki Motor Corp
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Sumitomo Wiring Systems Ltd
Suzuki Motor Corp
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  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Connection Or Junction Boxes (AREA)
  • Fuses (AREA)

Abstract

To attach a locked portion of a counterpart member to a locking portion provided in an existing electrical connection box from the reverse direction.SOLUTION: In a lock structure of an electrical connection box and a mating fixed member, a locking portion provided with a locking claw sandwiched between a pair of guide frames is provided on a housing outer surface of the electrical connection box, and the locking portion is provided with a stopper plate corresponding to the insertion direction of a locked portion of a fixed material at the tip end of a guide frame, and the fixed material is provided with a locked portion that is engaged with the locking portion in a direction opposite to the insertion direction, and the locking portion is provided with a clearance into and with which the stopper plate of the locking portion is inserted and engaged.SELECTED DRAWING: Figure 2

Description

本発明は電気接続箱のロック構造に関し、詳しくは、ヒューズボックス等の電気接続箱とカバー等の被固定材とのロック機構において、電気接続箱の外周に予め設けられているロック部を利用して、該ロック部へのロック方向と逆方向から前記被固定材をロックできるようにするものである。   The present invention relates to a lock structure for an electrical junction box, and more specifically, in a lock mechanism between an electrical junction box such as a fuse box and a fixed material such as a cover, a lock portion provided in advance on the outer periphery of the electrical junction box is used. Thus, the material to be fixed can be locked from the direction opposite to the direction of locking to the lock portion.

車両に配索するワイヤハーネスの電線群はヒューズボックス等の電気接続箱に接続し、該電気接続箱はカバー、ボックスホルダー、車体パネル等の被固定材に固定される。この被固定材へのロック手段は、各種タイプの車両に共用できるように、例えば、図5(A)に示すように、四角形状のヒューズボックス1の4辺の外面にそれぞれスルー形状のロック部2、3、4、5が設けられ、そのうちの3つのロック部2〜4の係止爪2r〜4r(2rと4rは不図示)の傾斜突出部の方向が同一とされ、他の1つのロック部5の係止爪5rの傾斜突出部の方向が逆方向とされている。具体的には、左右2カ所のロック部2と3と下方のロック部4の係止爪2r、3r、4rは前端が突出し、矢印Y1に示すように後方Rから前方Fに向けてカバー等の被固定材の被ロック部が挿入されてロック爪2r〜4rに係止するように設けられている。上方のロック部5の係止爪5rのみ後端が突出し、矢印Y2に示すように前方Fから後方Rに向けて被固定材の被ロック部が挿入されて係止爪5rに係止するように設けられている。   An electric wire group of a wire harness routed in a vehicle is connected to an electric connection box such as a fuse box, and the electric connection box is fixed to a fixed member such as a cover, a box holder, or a vehicle body panel. As shown in FIG. 5 (A), for example, as shown in FIG. 5 (A), the locking means for the material to be fixed can be used for various types of vehicles. 2, 3, 4, and 5 are provided, and the directions of the inclined protrusions of the locking claws 2 r to 4 r (2 r and 4 r are not shown) of the three lock portions 2 to 4 are the same, and the other one The direction of the inclined protrusion of the locking claw 5r of the lock part 5 is the reverse direction. Specifically, the locking claws 2r, 3r, and 4r of the lock portions 2 and 3 at the two left and right and the lock portion 4 at the lower side protrude from the front end, and cover or the like from the rear R toward the front F as indicated by an arrow Y1. The to-be-locked part of the to-be-fixed material is inserted and locked to the lock claws 2r to 4r. The rear end of only the locking claw 5r of the upper locking portion 5 protrudes, and the locked portion of the fixed material is inserted from the front F toward the rear R as shown by the arrow Y2, and locked to the locking claw 5r. Is provided.

前記ロック部の係止爪2r〜5rにロックする図5(B)に示す相手側部材140の被ロック部は、両側のガイド枠150、150の間にU形状の係止片160を可撓自在に連結し、該係止片160の突出端側に係止枠161を設けている。該係止枠161に対して、図5(C)に示すように、係止爪2r〜4rの突出した先端が係止される周知の形状とされている。(特開2000−32628号公報、特開2005−80434号公報等参照)   The locked portion of the mating member 140 shown in FIG. 5B that locks to the locking claws 2r to 5r of the locking portion flexes the U-shaped locking piece 160 between the guide frames 150, 150 on both sides. The locking frame 161 is provided on the protruding end side of the locking piece 160. As shown in FIG. 5C, the locking frame 161 has a known shape in which the protruding tips of the locking claws 2r to 4r are locked. (See JP 2000-32628, JP 2005-80434, etc.)

特開2000−32628号公報JP 2000-32628 A 特開2005−80434号公報JP 2005-80434 A

図6(A)に示すヒューズボックス1において、ワイヤハーネス50の電線群をヒューズボックス1の裏面の後方Rからヒューズボックスの端子収容室に挿入する場合、電線を保護するために、ヒューズボックス1の裏面(後面)にカバー200を配置し、該カバー200を既存のヒューズボックス1の外面に設けられているロック部2〜5を利用して固定することが好ましい。   In the fuse box 1 shown in FIG. 6A, when the wire group of the wire harness 50 is inserted from the rear R of the back surface of the fuse box 1 into the terminal housing chamber of the fuse box, It is preferable to arrange the cover 200 on the back surface (rear surface) and fix the cover 200 using the lock portions 2 to 5 provided on the outer surface of the existing fuse box 1.

この場合、4つのロック部2〜5のうちワイヤハーネス接続側の左辺のロック部2はカバー固定用として利用できず、右辺および上下辺のロック部3、4、5がカバー固定用として利用可能である。右辺および下辺のロック部3、4は後方Rから前方Fに向けて被固定材を矢印Y1方向に挿入係止するため、後方に配置するカバー200の被ロック部の係止枠をロック係止することができる。しかしながら、上辺のロック部5はY2方向の前方から後方へ被固定材の係止枠を挿入するため、後方に配置するカバー200の逆方向となるためロックできず、よって、被ロック部が設けられない。即ち、図6(B)に示すように上辺は逆方向でロック不可の「×」となり、下辺と右辺の2カ所のみがロック可の「◎」となる。   In this case, the lock part 2 on the left side on the wire harness connection side among the four lock parts 2 to 5 cannot be used for fixing the cover, and the lock parts 3, 4 and 5 on the right side and the upper and lower sides can be used for fixing the cover. It is. The lock parts 3 and 4 on the right side and the lower side lock and lock the locking frame of the locked part of the cover 200 arranged at the rear side in order to insert and lock the fixed material in the arrow Y1 direction from the rear R toward the front F. can do. However, since the lock portion 5 on the upper side is inserted in the Y2 direction from the front to the rear in the opposite direction of the cover 200 disposed behind the cover 200 because the locking frame for the fixed material is inserted, it cannot be locked. I can't. That is, as shown in FIG. 6B, the upper side becomes “x” that cannot be locked in the reverse direction, and only two places on the lower side and the right side become “◎” that can be locked.

このように、四角形状のヒューズボックス1の4辺のロック部の右辺と下辺のロック部3と4の2つしか利用できない場合、カバー200の保持力が弱くなる。よって、ワイヤハーネス50の剛性でカバー200が変形し、ヒューズボックス1とカバー200の間に隙間ができ、ワイヤハーネス50が噛み込む恐れがある。また、隙間内でワイヤハーネスが振動しカバー200に衝突して異音が発生する恐れもある。   As described above, when only two of the right side of the four lock portions and the lower lock portions 3 and 4 of the quadrangular fuse box 1 can be used, the holding force of the cover 200 is weakened. Therefore, the cover 200 is deformed by the rigidity of the wire harness 50, and a gap is formed between the fuse box 1 and the cover 200, and the wire harness 50 may be bitten. In addition, the wire harness may vibrate in the gap and may collide with the cover 200 to generate abnormal noise.

前記ヒューズボックス1の上辺のロック部5の方向を逆にすれば、3カ所がロックされ、ヒューズボックス1に対するカバー200の保持力を高めることができる。しかしながら、ロック部5の方向を変えるにはヒューズボックス1を成形する金型を新規に設ける必要があり、製造コストがかかる問題がある。   If the direction of the lock portion 5 on the upper side of the fuse box 1 is reversed, the three places are locked, and the holding force of the cover 200 against the fuse box 1 can be increased. However, in order to change the direction of the lock portion 5, it is necessary to newly provide a mold for forming the fuse box 1, and there is a problem that the manufacturing cost is high.

本発明は前記問題に鑑みてなされたもので、ヒューズボックス等の電気接続箱に固定するカバー等の被固定材に、電気接続箱に設けられているロック部に対して被ロック部の挿入方向が設定方向と逆であっても係止できる被ロック部を設け、ヒューズボックス等の既存の電気接続箱の形状を変えることなく、カバー等の被固定材をロックできるようにすることを課題としている。   The present invention has been made in view of the above-mentioned problem, and in the material to be fixed such as a cover fixed to the electrical connection box such as a fuse box, the insertion direction of the locked part with respect to the lock part provided in the electrical connection box The problem is to provide a locked part that can be locked even if the direction is opposite to the set direction, and to lock a fixed material such as a cover without changing the shape of an existing electrical connection box such as a fuse box. Yes.

前記課題を解決するため、本発明は、電気接続箱と相手方の被固定材のロック構造であって、前記電気接続箱のハウジング外面に一対のガイド枠で挟まれた係止爪を備えたロック部が設けられ、該ロック部は前記被固定材の被ロック部の挿入方向に対応したストッパ板が前記ガイド枠の先端に設けられており、
前記被固定材に前記挿入方向と逆方向から前記ロック部と係止する被ロック部が設けられ、該被ロック部は前記ロック部のストッパ板を嵌め込んで係止する隙間を備えていることを特徴とする電気接続箱のロック構造を提供している。
In order to solve the above-mentioned problems, the present invention provides a lock structure for an electric junction box and a mating member to be fixed, and includes a locking claw sandwiched between a pair of guide frames on the outer surface of the electric junction box housing. A stopper plate corresponding to the insertion direction of the locked portion of the fixed member is provided at the tip of the guide frame,
The locked member is provided with a locked portion that engages with the locking portion from the direction opposite to the insertion direction, and the locked portion has a clearance for engaging and locking the stopper plate of the locking portion. An electrical junction box locking structure is provided.

具体的には、例えば、前記電気接続箱のロック部の係止爪は傾斜突出部からなり、該傾斜突出部の傾斜方向に応じて前記被ロック部の挿入方向が規定されると共に、該挿入方向に応じて前記ストッパ板は前記ガイド枠の挿入方向の前端または後端に設けられており、
前記挿入方向と逆方向から挿入する前記被固定材の被ロック部は、切込部の奥端縁から一対のガイド枠を切込部に向けて突設し、該ガイド枠は上方に突出した摺動部の外面下部から横向き山形状に係止片部が突設し、該係止片部は突出した前端から奥端に向けて外方へ広がる形状とする一方、前記切込部の左右両側を段状係止部が突出した屈折側面とし、該段状係止部と前記係止片部の間には前記ロック部のストッパ板が挿入係止する前記隙間を設けた構成としている。
Specifically, for example, the locking claw of the lock portion of the electrical junction box is composed of an inclined protrusion, and the insertion direction of the locked portion is defined according to the inclination direction of the inclined protrusion, and the insertion According to the direction, the stopper plate is provided at the front end or the rear end in the insertion direction of the guide frame,
The locked portion of the fixed material to be inserted from the direction opposite to the insertion direction is provided with a pair of guide frames projecting from the back end edge of the cut portion toward the cut portion, and the guide frame protrudes upward. A locking piece protrudes from the lower part of the outer surface of the sliding part in a horizontal mountain shape, and the locking piece is shaped to spread outward from the protruding front end toward the back end, while Both sides are formed as refracting side surfaces with protruding stepped locking portions, and the gap for inserting and locking the stopper plate of the locking portion is provided between the stepped locking portion and the locking piece portion.

前記被ロック部はガイド枠を切込部に向けて突出させて可撓性を持たせ、該ガイド枠の摺動部を互いに近接する方向に摘まんで撓ませると、前記係止片部がロック部のストッパ板から外れ、ロック解除できる構成とされている。   The locked part is made flexible by projecting the guide frame toward the notch part, and when the sliding part of the guide frame is pinched in a direction close to each other and bent, the locking piece part is locked. It can be removed from the stopper plate and can be unlocked.

例えば、前記電気接続箱はヒューズボックスからなり、ハウジングの4辺の外面のうちの1辺に前記挿入方向を逆方向とした前記ロック部を備えていると共に他の3辺の外面に前記挿入方向のロック部を備えている一方、
前記被固定材は前記ヒューズボックスの背面に取り付けるカバーからなり、前記逆方向のロック部に係止する前記被ロック部以外の被ロック部は前記ロック部の係止爪に係止する係止枠を備えた既存の形状とし、
前記ヒューズボックスに前記カバーを3辺でロック固定している。
For example, the electrical junction box is formed of a fuse box, and includes the lock portion having the insertion direction opposite to one side of the four outer surfaces of the housing and the insertion direction on the other three outer surfaces. While equipped with a lock part of
The fixed member includes a cover attached to the back surface of the fuse box, and a locked portion other than the locked portion that is locked to the lock portion in the reverse direction is locked to a locking claw of the lock portion. With an existing shape with
The cover is locked and fixed to the fuse box on three sides.

前記電気接続箱は既存のヒューズボックスであり、前記相手方部材の被固定材は前記ヒューズボックスの背面に取り付ける新設のカバーからなり、該カバーの後面板で前記ヒューズボックスの後面を覆い、該後面板の上端から突出する上板部に前記逆方向から挿入する形状の前記ロック部に挿入する前記被ロック部を設け、前記後面板の下端および側端から突出する板部に前記挿入方向のロック部に係止する被ロック部を設けている。   The electrical junction box is an existing fuse box, and the material to be fixed to the counterpart member is a new cover to be attached to the rear surface of the fuse box, the rear face plate of the cover covers the rear face of the fuse box, and the rear face plate An upper plate portion protruding from the upper end of the rear plate is provided with the locked portion to be inserted into the lock portion having a shape to be inserted in the reverse direction, and the locking portion in the insertion direction is provided on the plate portion protruding from the lower end and the side end of the rear plate. A locked portion is provided to be locked.

前記のように、既存のヒューズボックス等の電気接続箱に設けている複数のロック部が、相手方部材の被ロック部の挿入方向を1つだけ相違させて逆方向にしている場合、該電気接続箱に取り付けるカバー等の被告固定材に逆方向から挿入してもロックできる前記被ロック部を設けている。よって、複雑な構造のヒューズボックス等の電気接続箱を新規に設ける必要はなく製造コストを大幅に低減できる。
かつ、前記新設カバーに、既存のヒューズボックスの他のロック部に正規方向から挿入する周知形状の被ロック部を設けるため、ヒューズボックスにカバーを3方向の面でロック結合して安定保持できる。その結果、カバー等の被固定材の変形、ガタ付きを防止でき、ワイヤハーネスの電線の噛み込み発生を防止できる等の利点がある。
As described above, when a plurality of lock portions provided in an electrical junction box such as an existing fuse box are reversed by changing the insertion direction of the locked portion of the counterpart member by one, the electrical connection The locked portion is provided so that it can be locked even if it is inserted in the opposite direction into a defendant fixing material such as a cover attached to the box. Therefore, it is not necessary to newly provide an electric junction box such as a fuse box having a complicated structure, and the manufacturing cost can be greatly reduced.
In addition, since the newly-covered cover is provided with a locked portion having a known shape to be inserted into the other lock portion of the existing fuse box from the normal direction, the cover can be locked and fixed stably in three directions on the fuse box. As a result, there are advantages such as prevention of deformation and backlash of a material to be fixed such as a cover, and prevention of biting of electric wires in the wire harness.

本発明の実施形態を示し、(A)はヒューズボックスからなる電気接続箱とカバーからなる被固定材の斜視図、(B)はヒューズボックスに設けるロック部の要部斜視図、(C)はカバーに設ける係止枠を備えた被ロック部の要部斜視図である。1A and 1B show an embodiment of the present invention, in which FIG. 1A is a perspective view of a material to be fixed consisting of an electrical connection box and a cover made of a fuse box, FIG. It is a principal part perspective view of the to-be-locked part provided with the latching frame provided in a cover. (A)は前記カバーの逆方向からロックする被ロック部の斜視図、(B)は(A)の要部概略平面図である。(A) is a perspective view of the to-be-locked part locked from the reverse direction of the said cover, (B) is a principal part schematic plan view of (A). (A)は前記ヒューズボックスにカバーを固定した状態の斜視図、(B)は(A)のロック部と被ロック部が係止した部分の拡大平面図である。(A) is a perspective view of a state in which a cover is fixed to the fuse box, and (B) is an enlarged plan view of a portion where the lock part and the locked part of (A) are locked. (A)は前記ヒューズボックスをカバーから取り外す工程を示す斜視図、(B)は(A)の要部概略平面図である。(A) is a perspective view which shows the process of removing the said fuse box from a cover, (B) is a principal part schematic plan view of (A). 従来例を示し、(A)はヒューズボックスからなる電気接続箱の斜視図、(B)は相手方部材の被ロック部を示す斜視図、(C)はロック部分を示す概略図である。A conventional example is shown, (A) is a perspective view of an electrical junction box comprising a fuse box, (B) is a perspective view showing a locked part of a counterpart member, and (C) is a schematic view showing a lock part. (A)(B)は前記ヒューズボックスにカバーをロック固定する場合の問題点を示す斜視図である。(A) (B) is a perspective view which shows the problem in the case of locking a cover to the said fuse box.

以下、本発明の実施形態を図面を参照して説明する。
図1乃至図4に本発明の実施形態を示す。
本実施形態で用いる電気接続箱は図5および図6に示す既存のヒューズボックス1であり、該ヒューズボックス1を取り付ける相手方部材の被固定材はヒューズボックス1の後方Rの背面に固定する新設のカバー10である。該カバー10は他のリレーボックス等の電気接続箱も固定して車体パネルに複数の電気接続箱を一括して固定するものであるが、ヒューズボックス1のみを固定して車両パネルに取り付けるものであってもよい。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of the present invention.
The electrical junction box used in the present embodiment is the existing fuse box 1 shown in FIGS. 5 and 6, and the material to be fixed to the counterpart member to which the fuse box 1 is attached is newly installed to be fixed to the rear surface of the rear R of the fuse box 1. Cover 10. The cover 10 also fixes other electrical connection boxes such as other relay boxes and fixes a plurality of electrical connection boxes to the vehicle body panel at a time, but fixes only the fuse box 1 and attaches it to the vehicle panel. There may be.

ヒューズボックス1は前述した如く四角形状のハウジング6の左右上下の4つの辺6a、6b、6d、6cの外面にそれぞれスルー形状のロック部2、3、5、4が設けられている。そのうち左側の辺6aのロック部2、右側の辺6bのロック部3、下辺6cのロック部4の係止爪2r、3r、4rは後方Rから前方Fに向けて矢印Y1方向に相手型の被ロック部が係止されるように前端が突出する傾斜突出部とされている。残りの上辺6dの外面に設けるロック部5のみ前方Fから後方Rの矢印Y2の方向で被ロック部が係止されるようにロック爪5rは後端が突出する傾斜突出部とされている。   As described above, the fuse box 1 is provided with through-shaped lock portions 2, 3, 5, and 4 on the outer surfaces of the four sides 6 a, 6 b, 6 d, and 6 c on the left, right, and upper sides of the rectangular housing 6. Among them, the locking claw 2r, 3r, 4r of the lock part 2 on the left side 6a, the lock part 3 on the right side 6b, and the lock part 4 on the lower side 6c are opposite to each other in the direction of the arrow Y1 from the rear R toward the front F. It is set as the inclination protrusion part which a front end protrudes so that a to-be-locked part may be latched. Only the lock portion 5 provided on the outer surface of the remaining upper side 6d is an inclined protruding portion whose rear end protrudes so that the locked portion is locked in the direction of the arrow Y2 from the front F to the rear R.

詳しくは、各ロック部2〜5は係止爪2r〜5rを挟む両側にL形状のガイド枠2a、3a、4a、5aを左右対称に突設している。後方Rから前方Fへ矢印Y1方向に被ロック部の係止枠を挿入するロック部2、3、4では各ガイド枠2a、3a、4aの前端にそれぞれストッパ板2b、3b、4bを設けている。図1(B)に示すように、矢印Y2の逆方向のロック部5ではガイド枠5aの後端にストッパ板5bを設けている。   Specifically, each of the lock portions 2-5 has L-shaped guide frames 2a, 3a, 4a, 5a projecting symmetrically on both sides of the locking claws 2r-5r. In the lock portions 2, 3 and 4 for inserting the locking frame of the locked portion from the rear R to the front F in the direction of the arrow Y1, stopper plates 2b, 3b and 4b are provided at the front ends of the guide frames 2a, 3a and 4a, respectively. Yes. As shown in FIG. 1B, a stopper plate 5b is provided at the rear end of the guide frame 5a in the lock portion 5 in the reverse direction of the arrow Y2.

前記ヒューズボックス1には図中左側から配索されてくるワイヤハーネス50の電線端末の端子が、ヒューズボックス1の前後方向に貫通する各端子収容室(キャビティ)1a内に後方から挿入係止され、これらの後方の電線を保護するため、ヒューズボックス1の後方にカバー10を取り付け、該カバー10を車体パネル(図示せず)に固定している。   In the fuse box 1, the terminal of the wire end of the wire harness 50 wired from the left side in the drawing is inserted and locked from the rear in each terminal accommodating chamber (cavity) 1a penetrating in the front-rear direction of the fuse box 1. In order to protect these rear wires, a cover 10 is attached to the rear of the fuse box 1, and the cover 10 is fixed to a vehicle body panel (not shown).

カバー10は樹脂成形品からなり、ヒューズボックス1の背面に配線用隙間をあけて被せる後板部11、該後板部11の上端から前方へ突出させた上板部12、後板部11の右側端から前方へ突出させた側板部13、後板部11の下端から前方へ突出させた下板部14を備え、後板部11の左側延在部の先端に側板部を備えている。上板部12にはヒューズボックス1のロック部5と係止する被ロック部15を設けている。また、側板部13および下板部14の内面側にヒューズボックス1のロック部3およびロック部4と係止する被ロック部16、17を設けている。   The cover 10 is made of a resin molded product, and includes a rear plate portion 11 that covers the back surface of the fuse box 1 with a gap for wiring, an upper plate portion 12 that protrudes forward from the upper end of the rear plate portion 11, and a rear plate portion 11. A side plate portion 13 protruding forward from the right end and a lower plate portion 14 protruding forward from the lower end of the rear plate portion 11 are provided, and a side plate portion is provided at the tip of the left extension portion of the rear plate portion 11. The upper plate portion 12 is provided with a locked portion 15 that engages with the lock portion 5 of the fuse box 1. Locked portions 16 and 17 that are engaged with the lock portion 3 and the lock portion 4 of the fuse box 1 are provided on the inner surfaces of the side plate portion 13 and the lower plate portion 14.

被ロック部16、17を係止するヒューズボックス1のロック部3、4は後方Rから前方Fへと矢印Y1方向から挿入係止する形状であるため、矢印Y1方向からロック部3、4に係止する被ロック部16、17は図1(C)に示すような通常の形状で、両側固定部16a、17aの後端からU字状の係止片16b、17bを前方へ延在させ、その前端に係止枠16r、17rを備えている。ロック時には係止枠16r、17rをたわませて係止爪3r、4rを乗り越えさえ、係止爪の前端面を係止枠16r、17rの内端面に係止する構造である。
なお、カバー10の被ロック部16、17を設けた部位の側板部13、下板部14の外面側にそれぞれ車体パネルの係止部と係止するロック部18、19を設けている。
Since the lock portions 3 and 4 of the fuse box 1 that lock the locked portions 16 and 17 are shaped to be inserted and locked from the rear R to the front F from the direction of the arrow Y1, the lock portions 3 and 4 are moved from the direction of the arrow Y1 to the lock portions 3 and 4. The locked portions 16 and 17 to be locked have a normal shape as shown in FIG. 1C, and U-shaped locking pieces 16b and 17b are extended forward from the rear ends of the both side fixing portions 16a and 17a. At the front end, locking frames 16r and 17r are provided. Even when the locking frames 16r and 17r are bent to get over the locking claws 3r and 4r at the time of locking, the front end surfaces of the locking claws are locked to the inner end surfaces of the locking frames 16r and 17r.
Lock portions 18 and 19 are provided on the outer surface side of the side plate portion 13 and the lower plate portion 14 where the locked portions 16 and 17 of the cover 10 are provided.

ヒューズボックス1の上面のロック部5は逆方向Y2から被ロック部を挿入係止する形状とされているため、カバー10の上板部12の被ロック部15は被ロック部16、17と同一方向の被ロック部を形成してもロック部5と係止できない。そのため、被ロック部15をロック部5に対してY1方向からの挿入しても係止できる形状としている。   Since the lock portion 5 on the upper surface of the fuse box 1 is shaped to insert and lock the locked portion from the reverse direction Y2, the locked portion 15 of the upper plate portion 12 of the cover 10 is the same as the locked portions 16 and 17. Even if the locked part in the direction is formed, the lock part 5 cannot be locked. For this reason, the locked portion 15 has a shape that can be locked even when inserted into the lock portion 5 from the Y1 direction.

カバー10の被ロック部15を係止するヒューズボックス1のロック部5は、図1(B)に示すように、L形状の左右のガイド枠5a、5aの横枠部5a2、5a2が対向方向に突出し、後端側で横枠部5a2、5a2から縦枠部5a1、5a1にかけてL形状のストッパ板5b、5bを設け、矢印Y2方向から被係止部が挿入された時に該被係止部のガイド板の先端をストッパ板5b、5bと当接させて停止するものとしている。   As shown in FIG. 1 (B), the lock portion 5 of the fuse box 1 that locks the locked portion 15 of the cover 10 has L-shaped left and right guide frames 5a, 5a and horizontal frame portions 5a2, 5a2 facing each other. And L-shaped stopper plates 5b and 5b are provided from the horizontal frame portions 5a2 and 5a2 to the vertical frame portions 5a1 and 5a1 on the rear end side, and the locked portion is inserted when the locked portion is inserted from the arrow Y2 direction. The tip of the guide plate is brought into contact with the stopper plates 5b and 5b and stopped.

詳しくは、逆方向Y1からロック部5に挿入する被ロック部15では、カバー10の上板部12に前端から凹設した切込部20の奥端縁20aから左右一対のガイド枠21、21を間隔をあけて設けている。該ガイド枠21、21は上方に向けて山形状に突出した摺動部21a、21aの外面下部から横向き山形状に突出した係止片部21b、21bを設けている。該係止片部21bは前端から奥端に向けて外方へ広がる形状としている。また、切込部20の左右両側縁を段状係止部22、22が突出した屈折側面20b、20bとしている。該段状係止部22、22と前記係止片部21b、21bの間には前記ロック部5のストッパ板5b、5bが挿入係止する隙間20c、20cを設けている。   Specifically, in the locked portion 15 to be inserted into the lock portion 5 from the reverse direction Y1, a pair of left and right guide frames 21, 21 from the back end edge 20a of the cut portion 20 provided in the upper plate portion 12 of the cover 10 from the front end. Are provided at intervals. The guide frames 21 and 21 are provided with locking piece portions 21b and 21b protruding in a lateral mountain shape from the lower outer surface of the sliding portions 21a and 21a protruding upward in a mountain shape. The locking piece 21b has a shape that spreads outward from the front end toward the back end. Further, the left and right side edges of the cut portion 20 are formed as refractive side surfaces 20b and 20b from which the stepped locking portions 22 and 22 protrude. Between the stepped locking portions 22 and 22 and the locking piece portions 21b and 21b, gaps 20c and 20c for inserting and locking the stopper plates 5b and 5b of the locking portion 5 are provided.

被ロック部15を前記形状として、ヒューズボックス1のロック部5に相手方となるカバー10の被ロック部15を矢印Y1方向に前進させて係止する際、ヒューズボックス1のガイド枠5aの横枠部5a2の先端にカバー10の被ロック部15の摺動部21aが摺接し、係止片部21bの前端がストッパ板5bの下部からL形状のガイド枠5a内に挿入していく設定としている。かつ、図3(B)に示すように、被ロック部15が前進すると、ロック部5の後端のストッパ板5bの前後両面がカバー10の段状係止部22、22の前端と係止片部21b、21bの後端に当接し、隙間20c、20cに嵌まり込んだ状態で係止される設定としている。   When the locked portion 15 is shaped as described above and the locked portion 15 of the cover 10 that is the counterpart is advanced and locked in the direction of the arrow Y1 to the lock portion 5 of the fuse box 1, the horizontal frame of the guide frame 5a of the fuse box 1 The sliding part 21a of the locked part 15 of the cover 10 is in sliding contact with the tip of the part 5a2, and the front end of the locking piece part 21b is inserted into the L-shaped guide frame 5a from the lower part of the stopper plate 5b. . 3B, when the locked portion 15 moves forward, both front and rear surfaces of the stopper plate 5b at the rear end of the lock portion 5 are locked with the front ends of the stepped locking portions 22 and 22 of the cover 10. It is set to be in contact with the rear ends of the pieces 21b and 21b and locked in a state of being fitted into the gaps 20c and 20c.

被ロック部15とロック部5とのロックを解除するには、図4に示すように、カバー10のガイド枠21、21の摺動部21a、21aの上方突出部分を作業員が指で摘まんで互いに近接する方向に狭めることで、ロック部5のストッパ板5bに対する係止片部21bの係止が解け、ヒューズボックス1を前方またはカバー10を後方へ移動させて固定解除できる。   In order to unlock the locked portion 15 and the lock portion 5, as shown in FIG. 4, the operator grasps the upper protruding portions of the slide portions 21 a and 21 a of the guide frames 21 and 21 of the cover 10 with fingers. By narrowing in the direction close to each other, the locking piece portion 21b is unlocked from the stopper plate 5b of the locking portion 5, and the fuse box 1 can be moved forward or the cover 10 can be moved rearward to release the lock.

前記のように、既存のヒューズボックスに対して、カバー10の被ロック部15を逆方向からロック部5に係止できる形状としている。よって、既存のヒューズボックス1にカバー10を固定する際、該カバー10は後方Rから前方Fに矢印Y1方向で取り付けることができる。
即ち、ヒューズボックス1のロック部5は逆方向Y2から被ロック部が係止される設定とされているが、カバー10の被ロック部15は後方Rから前方Fに矢印Y1方向で移動すると、被ロック部15はロック部5の左右のガイド枠5a、5aの後端のストッパ板5b、5bを被ロック部15の隙間20c、20cに嵌め込んで段状係止部22、22の前端と係止片部21b、21bの後端に当接係止させてロックする。同時に、Y1方向からカバー10の被ロック部16、17がヒューズボックス1のロック部3、4にスムーズに係止することができる。これにより、ヒューズボックス1の上下および右の3面にカバー10がロック結合し、安定保持できる。
As described above, the locked portion 15 of the cover 10 can be locked to the lock portion 5 from the reverse direction with respect to the existing fuse box. Therefore, when fixing the cover 10 to the existing fuse box 1, the cover 10 can be attached from the rear R to the front F in the direction of the arrow Y1.
That is, the lock portion 5 of the fuse box 1 is set to be locked in the reverse direction Y2, but the lock portion 15 of the cover 10 moves from the rear R to the front F in the arrow Y1 direction. The locked portion 15 is configured such that the stopper plates 5b and 5b at the rear ends of the left and right guide frames 5a and 5a of the lock portion 5 are fitted into the gaps 20c and 20c of the locked portion 15 and the front ends of the stepped locking portions 22 and 22 are connected. The locking pieces 21b and 21b are abutted and locked to the rear ends to lock. At the same time, the locked portions 16 and 17 of the cover 10 can be smoothly engaged with the lock portions 3 and 4 of the fuse box 1 from the Y1 direction. As a result, the cover 10 is locked to the upper and lower and right three surfaces of the fuse box 1 and can be stably held.

かつ、カバー10に逆方向から取り付けができる被ロック部15を設けているため、既存のヒューズボックス1を用いても、ワイヤハーネス50の取出口となる左側のロック部2以外の上下および右側のロック部3、4、5を利用してカバー10を取り付けることができる。よって、ヒューズボックス1を新設する必要がなく、大幅のコストダウンを図ることができる。かつ、上下両側および一側の右側で3点支持してカバー10をヒューズボックス1に安定して固定できるため、カバー10の変形、ガタツキがなく、ワイヤハーネス50の噛み込み発生を防止できる。
さらに、前記のように、作業員が指で簡単に解除できるロック構造であるため、ヒューズボックスのロック部およびカバーの被ロック部を破損させることなく固定解除でき、取り外し後も再利用できる。
And since the locked part 15 which can be attached to the cover 10 from the reverse direction is provided, even if the existing fuse box 1 is used, the upper and lower and right side parts other than the left side locking part 2 serving as the outlet of the wire harness 50 are used. The cover 10 can be attached using the lock portions 3, 4, and 5. Therefore, it is not necessary to newly install the fuse box 1, and a significant cost reduction can be achieved. In addition, since the cover 10 can be stably fixed to the fuse box 1 by supporting three points on the upper and lower sides and the right side of one side, the cover 10 can be prevented from being deformed and rattled, and the occurrence of the wire harness 50 can be prevented.
Further, as described above, since the lock structure can be easily released by a worker with a finger, the lock can be released without damaging the lock part of the fuse box and the locked part of the cover, and can be reused after removal.

本発明は前記実施形態に限定されず、電気接続箱に設けられている既存のロック部を利用して他部材をロック固定する場合に利用できる。其の際、ロック部の係止爪を挟む両側のガイド枠の一端のストッパ板を係止する部位を被ロック部に設けることにより、ロック部に対して正規のロック方向と、該ロック方向と反対方向の逆方向から相手側部材に設けた被ロック部を係止できる構造とすればよい。   The present invention is not limited to the above-described embodiment, and can be used when other members are locked and fixed using an existing lock portion provided in the electrical junction box. At that time, by providing a portion to be locked to the stopper plate at one end of the guide frame on both sides sandwiching the locking claw of the lock portion, the normal locking direction with respect to the lock portion, and the lock direction What is necessary is just to set it as the structure which can lock the to-be-locked part provided in the other party member from the reverse direction of the opposite direction.

1 ヒューズボックス
2、3、4、5 ロック部
5a ガイド枠
5b ストッパ板
5r 係止爪
6 ハウジング
10 カバー
11 後板部
12 上板部
13 側板部
14 下板部
15、16、17 被ロック部
20 切込部20
20c 隙間
21 ガイド枠
21a 摺動部
21b 係止片部
22 段状係止部
DESCRIPTION OF SYMBOLS 1 Fuse box 2, 3, 4, 5 Locking part 5a Guide frame 5b Stopper plate 5r Locking claw 6 Housing 10 Cover 11 Rear plate part 12 Upper plate part 13 Side plate part 14 Lower plate part 15, 16, 17 Locked part 20 Cut section 20
20c Clearance 21 Guide frame 21a Sliding part 21b Locking piece 22 Stepped locking part

Claims (3)

電気接続箱と相手方の被固定材のロック構造であって、前記電気接続箱のハウジング外面に一対のガイド枠で挟まれた係止爪を備えたロック部が設けられ、該ロック部は前記被固定材の被ロック部の挿入方向に対応したストッパ板が前記ガイド枠の先端に設けられており、
前記被固定材に前記挿入方向と逆方向から前記ロック部と係止する被ロック部が設けられ、該被ロック部は前記ロック部のストッパ板を嵌め込んで係止する隙間を備えていることを特徴とする電気接続箱のロック構造。
A lock structure of an electric junction box and a mating member to be fixed, wherein a lock portion provided with a locking claw sandwiched between a pair of guide frames is provided on the outer surface of the housing of the electric junction box. A stopper plate corresponding to the insertion direction of the locked portion of the fixing material is provided at the tip of the guide frame,
The locked member is provided with a locked portion that engages with the locking portion from the direction opposite to the insertion direction, and the locked portion has a clearance for engaging and locking the stopper plate of the locking portion. An electrical junction box lock structure.
前記電気接続箱のロック部の係止爪は傾斜突出部からなり、該傾斜突出部の傾斜方向に応じて前記被ロック部の挿入方向が規定されると共に、該挿入方向に応じて前記ストッパ板は前記ガイド枠の挿入方向の前端または後端に設けられており、
前記挿入方向と逆方向から挿入する前記被固定材の被ロック部は、切込部の奥端縁から一対のガイド枠を切込部に向けて突設し、該ガイド枠は上方に突出した摺動部の外面下部から横向き山形状に係止片部が突設し、該係止片部は突出した前端から奥端に向けて外方へ広がる形状とする一方、前記切込部の左右両側を段状係止部が突出した屈折側面とし、該段状係止部と前記係止片部の間には前記ロック部のストッパ板が挿入係止する前記隙間を設けた構成としている請求項1に記載の電気接続箱のロック構造。
The locking claw of the lock portion of the electrical junction box is composed of an inclined protruding portion, and the insertion direction of the locked portion is defined according to the inclination direction of the inclined protruding portion, and the stopper plate according to the insertion direction. Is provided at the front end or rear end in the insertion direction of the guide frame,
The locked portion of the fixed material to be inserted from the direction opposite to the insertion direction is provided with a pair of guide frames projecting from the back end edge of the cut portion toward the cut portion, and the guide frame protrudes upward. A locking piece protrudes from the lower part of the outer surface of the sliding part in a horizontal mountain shape, and the locking piece is shaped to spread outward from the protruding front end toward the back end, while The both sides are bent side surfaces with protruding stepped locking portions, and the gap for inserting and locking the stopper plate of the locking portion is provided between the stepped locking portion and the locking piece portion. Item 10. The electrical junction box lock structure according to Item 1.
前記電気接続箱はヒューズボックスからなり、ハウジングの4辺の外面のうちの1辺に前記挿入方向を逆方向とした前記ロック部を備えていると共に他の3辺の外面に前記挿入方向のロック部を備えている一方、
前記被固定材は前記ヒューズボックスの背面に取り付けるカバーからなり、前記逆方向のロック部に係止する前記被ロック部以外の被ロック部は前記ロック部の係止爪に係止する係止枠を備えた既存の形状とし、
前記ヒューズボックスに前記カバーを3辺でロック固定している請求項1または請求項2に記載の電気接続箱のロック構造。
The electrical junction box is formed of a fuse box, and includes the lock portion with the insertion direction reversed on one side of the four outer surfaces of the housing and the lock in the insertion direction on the other three outer surfaces. While having a part
The fixed member includes a cover attached to the back surface of the fuse box, and a locked portion other than the locked portion that is locked to the lock portion in the reverse direction is locked to a locking claw of the lock portion. With an existing shape with
The lock structure of the electric junction box according to claim 1 or 2, wherein the cover is locked and fixed to the fuse box at three sides.
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