JP2010220451A

JP2010220451A - Locking device

Info

Publication number: JP2010220451A
Application number: JP2009067333A
Authority: JP
Inventors: Toshio Matsutani; 斗志男松谷
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2009-03-19
Filing date: 2009-03-19
Publication date: 2010-09-30

Abstract

PROBLEM TO BE SOLVED: To provide a locking device for locking a locking pawl to a locking frame, which does not produce a gap in the engaging surface, reduces occurrence of rattling, and can be unlocked without using a tool. SOLUTION: In the locking device which is provided for a first member and a second member attached to a wire harness and consisting of resin moldings to be joined together, a locking piece is projected from the second member toward the first member, thickness of the locking piece is decreased gradually toward the tip, so that the outer surface becomes an inclined surface, a locking pawl in the shape of continuous sawtooth is provided in the inclined outer surface, the first member is provided with a movable locked piece in the vertical direction, the inner surface of an upper side of the movable locked piece projecting from a supporting frame toward the upside of the first member side is inclined upward and outward, sawtooth-shaped locking grooves to be engaged with the locking pawl are provided continuously, a portion of the movable locked piece projecting downward from the supporting frame serves as a pressing release portion, and as the locking piece is inserted between the first member and the movable locked piece, the locking pawl is engaged with the locking grooves at a plurality of continuous positions to keep them locked and joined. COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は２つの部材を結合するロック装置に関し、詳しくは、ワイヤハーネスに取り付けられるプロテクタの本体と蓋とを結合するロック装置として好適に用いられるものである。 The present invention relates to a locking device that couples two members, and more specifically, is suitably used as a locking device that couples a main body of a protector attached to a wire harness and a lid.

自動車に配索される電線群の集束体であるワイヤハーネスに外装し、ワイヤハーネスの保護および配索方向を規制する部材として、樹脂成形品の本体と蓋とからなるプロテクタが汎用されている。該プロテクタは断面コ字状の本体内部にワイヤハーネスを貫通した後に、本体に、本体と別体の蓋あるいは本体の一側壁にヒンジ結合した蓋を、本体と蓋とに設けた係止部と被係止部とを結合してロックしている。
また、ワイヤハーネスを接続する電気接続箱においても、本体に分岐接続回路を構成する内部回路体を収容し、蓋を本体にロック結合している。
このようにワイヤハーネスに取り付ける樹脂成形品からなる部材には、ロック装置が設けられていることが多い。 2. Description of the Related Art A protector including a main body and a lid of a resin molded product is widely used as a member that is sheathed on a wire harness that is a focusing body of a group of electric wires that are routed in an automobile and that protects the wire harness and regulates the direction of wiring. The protector has a locking portion provided on the main body and the lid, after passing through the wire harness inside the main body having a U-shaped cross section, and on the main body, a lid separated from the main body or a hinge connected to one side wall of the main body. The locked portion is coupled and locked.
Also in the electrical junction box to which the wire harness is connected, an internal circuit body constituting a branch connection circuit is accommodated in the main body, and a lid is lock-coupled to the main body.
As described above, a member made of a resin molded product attached to the wire harness is often provided with a lock device.

この種のロック装置は、通常、図６に示すように、本体１００の外面から係止枠１０１を突設する一方、蓋１１０の外面から下向きに係止片１１１を突設し、その下端に係止爪１１２を設け、係止爪１１２を係止枠１０１の外枠部１０１ａの下面に係合してロック結合している。
また、前記と同様なロック装置とした特開平５−２５２６３４号公報のロック装置では、図７に示すように、本体１００の周壁には係止枠１０１の上方に凹部１０２を設けている。 As shown in FIG. 6, this type of locking device normally has a locking frame 101 protruding from the outer surface of the main body 100, and a locking piece 111 protruding downward from the outer surface of the lid 110. A locking claw 112 is provided, and the locking claw 112 is engaged with and locked to the lower surface of the outer frame portion 101 a of the locking frame 101.
In the locking device disclosed in Japanese Patent Laid-Open No. 5-252634, which is the same locking device as described above, a recess 102 is provided above the locking frame 101 on the peripheral wall of the main body 100 as shown in FIG.

特開平５−２５２６３４号公報JP-A-5-252634

従来汎用されている図６に示すロック装置では、蓋１１０の係止爪１１２を本体１００の外面１００ａと係止枠１０１の間の空間を通過させる際、係止枠１０１を外方に撓ませて通過させるために、係止爪１１２を係止枠１０１の外枠部１０１ａの下面に係合した状態でクリアランスＣを設けておく必要がある。しかしながら、このクリアランスＣにより、ロック状態でガタ付きが発生し、自動車の走行時にガタ付きにより異音が発生する問題がある。特に、プロテクタを室内側に配置する場合、静寂とする室内に異音が響くことになり、異音の発生を無くすことが求められている。
図７に示す特許文献１のロック装置では、本体１００の上端に凹部１０２を設けることにより、蓋１１０の全体を撓ませて係止爪１１２を本体外面１００ａと係止枠１０１の間の空間を貫通させ、係止爪１１２を係止枠１０１の外枠部１０１ａの下面に係止した状態で蓋１１０を弾性復帰させ、これにより、係止爪と係止枠との係止面にクリアランスを発生させないようにしている。しかしながら、このようにロック結合すると、ロックを解除して蓋１１０を取り外す場合に治具が必要となる問題がある。かつ、ロック状態で凹部１０２からなる切欠部が生じることになり、被水領域に配置すると該凹部１０２から浸水が発生する恐れがある。 In the conventional locking device shown in FIG. 6, when the locking claw 112 of the lid 110 is passed through the space between the outer surface 100a of the main body 100 and the locking frame 101, the locking frame 101 is bent outward. Therefore, it is necessary to provide a clearance C in a state where the locking claw 112 is engaged with the lower surface of the outer frame portion 101a of the locking frame 101. However, this clearance C has a problem that rattling occurs in the locked state, and abnormal noise is generated due to rattling when the vehicle is running. In particular, when the protector is arranged on the indoor side, an abnormal noise will echo in a quiet room, and it is required to eliminate the occurrence of the abnormal noise.
In the locking device disclosed in Patent Document 1 shown in FIG. 7, a recess 102 is provided at the upper end of the main body 100 to bend the entire lid 110 so that the locking claw 112 is provided with a space between the main body outer surface 100 a and the locking frame 101. The lid 110 is elastically restored in a state where the locking claw 112 is locked to the lower surface of the outer frame portion 101a of the locking frame 101, and thereby the clearance between the locking claw and the locking frame is cleared. It is made not to generate. However, such a lock connection has a problem that a jig is required to release the lock and remove the lid 110. In addition, a notch formed of the recess 102 is generated in the locked state, and there is a possibility that water will be generated from the recess 102 when it is disposed in the wet area.

本発明は前記問題に鑑みてなされたもので、係止爪と係止枠との係合面で発生するクリアランスによるガタ付きを減少あるいは無くして異音の発生を抑制し、かつ、ロックを治具を用いることなく解除できるロック装置を提供することを課題としている。 The present invention has been made in view of the above problems, and reduces or eliminates the backlash caused by the clearance generated on the engagement surface between the locking claw and the locking frame to suppress the generation of abnormal noise and to cure the lock. It is an object of the present invention to provide a lock device that can be released without using a tool.

前記課題を解決するため、本発明は、ワイヤハーネスに取り付けられ、互いに結合される樹脂成形品からなる第一部材と第二部材とに設けたロック装置であって、
前記第一部材に向けて前記第二部材から係止片を突設し、該係止片の肉厚を先端に向けて次第に減少して外面を傾斜面とし、該傾斜した外面に鋸歯状に連続する係止爪を設けている一方、
前記第一部材の外面より水平方向の支持枠を突設し、該支持枠の外端に垂直方向の可動被係止片を設け、該可動被係止片は前記支持枠より前記第一部材側の上方に向けて突出する上側部の内面は上方外向きに傾斜させると共に、前記係止爪と係合する鋸歯状の係止溝を連続的に設けると共に、該可動被係止片の前記支持枠より下方へ突出する部分を押圧解除部とし、
前記係止片を前記第一部材と可動被係止片の間に挿入して、連続する複数箇所で前記係止爪と係止溝とを噛み合わせてロック結合すると共に、前記押圧解除部を押すと前記係止爪から係止溝が外れてロック解除できる構成としていることを特徴とするロック装置を提供している。 In order to solve the above problems, the present invention is a locking device provided on a first member and a second member made of a resin molded product attached to a wire harness and bonded to each other,
A locking piece protrudes from the second member toward the first member, and the thickness of the locking piece gradually decreases toward the tip to make the outer surface an inclined surface, and the inclined outer surface has a sawtooth shape. While providing continuous locking claws,
A horizontal support frame protrudes from the outer surface of the first member, and a vertical movable locked piece is provided at an outer end of the support frame, and the movable locked piece is moved from the support frame to the first member. The inner surface of the upper part protruding upward on the side is inclined upward and outward, a serrated locking groove that engages with the locking claw is continuously provided, and the movable locked piece is The part that protrudes downward from the support frame is the pressing release part,
The locking piece is inserted between the first member and the movable locked piece, and the locking claw and the locking groove are meshed and locked at a plurality of continuous locations, and the pressing release portion is There is provided a locking device characterized in that when pressed, the locking groove is released from the locking claw and the lock can be released.

従来のロック装置では、例えば、本体と蓋との２部材とをロック結合する時、一方に設けた１つの係止爪を他方の１つの係止枠に係止して、１カ所で係合して結合しているため、この１カ所の係合面にクリアランスが生じるとロック部にはガタ付きが生じて異音が発生する。これに対して、本発明では、前記のように、係止爪を鋸歯状に連続させると共に、該係止爪と係合させる被係止溝も鋸歯状の係止溝とし、連続した複数箇所で係止爪を係止溝とを係合させることにより、係止爪と係止溝との間のクリアランスの発生を減少または無くすことができ、ロック部のガタ付きによる異音の発生を低減あるいは防止できる。
また、被係止片を前記のように可動被係止片としているため、複数箇所での係止爪と係止溝との係合に要する力を低減できる。
また、可動被係止片の下部の押圧解除部を外部から押すだけでロックを解除でき、ロック解除時に治具を必要としない。 In a conventional locking device, for example, when two members, a main body and a lid, are locked and connected, one locking claw provided on one side is locked to one other locking frame and engaged at one place. Therefore, when a clearance is generated on this one engagement surface, the lock portion is rattled and abnormal noise is generated. On the other hand, in the present invention, as described above, the locking claw is continuous in a sawtooth shape, and the locked groove to be engaged with the locking claw is also a sawtooth locking groove, and a plurality of continuous positions are provided. By engaging the locking claw with the locking groove, the occurrence of clearance between the locking claw and the locking groove can be reduced or eliminated, and the generation of noise due to looseness of the lock part is reduced. Or it can be prevented.
Moreover, since the to-be-latched piece is made into the movable to-be-latched piece as described above, it is possible to reduce the force required to engage the latching claw and the latching groove at a plurality of locations.
In addition, the lock can be released simply by pressing the pressing release portion at the lower part of the movable latching piece from the outside, and no jig is required when releasing the lock.

前記第一部材の外面から前記支持枠および可動被係止片を挟むように両側枠を突設し、可動被係止片の係止溝と係止片の係止爪とが左右方向にずれるのを防止することが好ましい。 Both side frames project from the outer surface of the first member so as to sandwich the support frame and the movable locked piece, and the locking groove of the movable locked piece and the locking claw of the locking piece are shifted in the left-right direction. It is preferable to prevent this.

前記連続する係止溝と係止爪は、いずれも少なくとも３個以上を上下段で連続して設け、該各係止溝および各係止爪は水平面と傾斜面とで囲んだ溝であり、傾斜面は水平面に対して下向き３０〜４５゜で突出し、かつ、連続する前記溝ピッチは３〜４ｍｍとしていることが好ましい。 The continuous locking grooves and the locking claws are each provided with at least three or more continuous in the upper and lower stages, each locking groove and each locking claw being a groove surrounded by a horizontal surface and an inclined surface, It is preferable that the inclined surface protrudes at a downward angle of 30 to 45 ° with respect to the horizontal plane, and the continuous groove pitch is 3 to 4 mm.

前記第一部材と第二部材は、ワイヤハーネスを貫通保護するプロテクタの蓋と本体とからなり、蓋を前記第二部材とし、プロテクタの本体を前記第一部材とし、前記蓋の上壁の外端縁又は蓋の周壁の下端から前記係合片を突設し、前記本体の周壁の外面より前記可動被係止片を突設していることが好ましい。 The first member and the second member include a lid and a main body of a protector that penetrates and protects the wire harness, the lid is the second member, the main body of the protector is the first member, and an outer wall of the lid It is preferable that the engaging piece protrudes from the lower end of the peripheral wall of the end edge or the lid, and the movable locked piece protrudes from the outer surface of the peripheral wall of the main body.

前記プロテクタに限らず、ワイヤハーネスを接続する電気接続箱のケース本体と該ケース本体に取り付ける蓋との間のロック装置にも好適に用いられる。かつ、該電気接続箱やプロテクタに限らず、ワイヤハーネスに取り付ける第一部材と第二部材とをロック結合する組み立て部品に用いることができる。 Not only the protector but also a locking device between a case main body of an electrical junction box to which a wire harness is connected and a lid attached to the case main body is preferably used. And it can use for the assembly component which carries out the lock | rock coupling | bonding of the 1st member attached to a wire harness and a 2nd member not only in this electrical junction box and a protector.

上述したように、本発明のロック装置は、第一部材に鋸歯状の係止溝を設けた可動被係止片を設け、第二部材に前記係止溝と係合する鋸歯状の係止爪を設けた係止片を設け、連続する複数箇所で係止爪と係止溝とを係合してロック部を形成しているため、該ロック部ではガタ付きが発生しにくく、異音の発生を低減または防止できる。
かつ、ロック解除時には可動被係止片を押すだけでロック解除でき、治具を必要としない利点がある。 As described above, in the locking device of the present invention, the movable member to be locked provided with the serrated locking groove is provided on the first member, and the serrated locking that engages the locking groove on the second member. Since the locking piece provided with the claw is provided and the locking claw and the locking groove are engaged with each other at a plurality of continuous positions to form the lock portion, the lock portion is less likely to be rattled. Can be reduced or prevented.
And at the time of unlocking, there is an advantage that the lock can be released simply by pushing the movable locked piece, and no jig is required.

第一実施形態のロック装置を備えたプロテクタを示す概略全体図である。It is a schematic whole figure showing a protector provided with a locking device of a first embodiment. プロテクタの本体と蓋とのロック部分を示し、（Ａ）は拡大斜視図、（Ｂ）は拡大断面図である。The lock | rock part of the main body and lid | cover of a protector is shown, (A) is an expansion perspective view, (B) is an expanded sectional view. （Ａ）は係止片の挿入過程を示す断面図、（Ｂ）はロック時の断面図、（Ｃ）はロック解除時の断面図である。(A) is sectional drawing which shows the insertion process of a locking piece, (B) is sectional drawing at the time of a lock | rock, (C) is sectional drawing at the time of lock release. 第一実施形態の変形例を示す図面である。It is drawing which shows the modification of 1st embodiment. 第二実施形態を示す斜視図である。It is a perspective view which shows 2nd embodiment. 従来例を示す図面である。It is drawing which shows a prior art example. 他の従来例を示す図面である。It is drawing which shows another prior art example.

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３に示す第一本実施形態のロック装置は、自動車に配索するワイヤハーネス１に対して所要箇所に外装するプロテクタ２の本体３と蓋４とのロック装置に関する。本体３が第一部材、蓋４が第二部材に相当し、本体３にワイヤハーネス１を貫通した後に蓋４を被せてロックしている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The locking device of the first embodiment shown in FIG. 1 to FIG. 3 relates to a locking device for the body 3 and the lid 4 of the protector 2 that is sheathed at a required location with respect to the wire harness 1 that is routed in the automobile. The main body 3 corresponds to the first member, and the lid 4 corresponds to the second member. After the wire harness 1 has penetrated the main body 3, the lid 4 is covered and locked.

プロテクタ２の本体３は底壁５と両側の側壁６を備えた断面コ字形状であり、蓋４は本体３の上端開口８を閉鎖する上壁９を有する平板形状であり、本体３および蓋４はいずれも樹脂成形品からなる。 The main body 3 of the protector 2 has a U-shaped cross section with a bottom wall 5 and side walls 6 on both sides, and the lid 4 has a flat plate shape having an upper wall 9 that closes the upper end opening 8 of the main body 3. 4 is a resin molded product.

前記本体３の両側の側壁６の上端に沿って間隔をあけてロック装置の一方部材を構成する可動被係止片１０と支持枠１１を突設している。支持枠１１は側壁６の外面より水平方向に突出し、その先端外面に垂直方向の可動被係止片１０を設けている。可動被係止片１０は支持枠１１より上方に向けて突出する上側部１０ａの内面は上方外向きに傾斜させ、該傾斜面に鋸歯状の係止溝１２を連続的に設けている。この連続的に設けた係止溝１２と側壁６の外面６ａとの間を蓋４から突設する係止片１５の挿入空間１８としている。該可動被係止片１０は支持枠１１より下方へ突出する部分を設け、該部分を押圧解除部１３とし、押圧解除部１３の外面を側壁６側へ押すと、上側部１０ａが支持枠１１との連続部を支点として外方向に回転して前記空間１８を開くようにしている。 A movable locked piece 10 and a support frame 11 are provided projecting from each other along the upper ends of the side walls 6 on both sides of the main body 3 so as to constitute one member of the locking device. The support frame 11 protrudes in the horizontal direction from the outer surface of the side wall 6, and a vertically movable movable locking piece 10 is provided on the outer surface of the tip. The movable locked piece 10 has an inner surface of the upper portion 10a protruding upward from the support frame 11 inclined upward and outward, and a serrated locking groove 12 is continuously provided on the inclined surface. A space 18 between the continuously provided locking groove 12 and the outer surface 6 a of the side wall 6 serves as an insertion space 18 for the locking piece 15 protruding from the lid 4. The movable locked piece 10 is provided with a portion that protrudes downward from the support frame 11, and this portion serves as a press release portion 13. When the outer surface of the press release portion 13 is pushed toward the side wall 6, the upper portion 10 a is The space 18 is opened by rotating outward with the continuous portion as a fulcrum.

また、本体３の側壁６の外面には、前記支持枠１１および可動被係止片１０とは固着せず、挟むように両側枠１４Ａ、１４Ｂを突出し、前記空間１８を囲むようにしている。 Further, the support frame 11 and the movable locked piece 10 are not fixed to the outer surface of the side wall 6 of the main body 3, and both side frames 14 A and 14 B protrude so as to be sandwiched so as to surround the space 18.

一方、蓋４の上壁９の幅方向両端から前記可動被係止片１０と対向する位置に下向きに、ロック装置の他方部材となる係止片１５を突設している。
係止片１５は、本体３の側壁６と接触させる面は垂直面１５ａとする一方、その肉厚を下方先端に向けて次第に減少して外面を傾斜面とし、該傾斜した外面に鋸歯状に連続する係止爪１７を設けている。 On the other hand, a locking piece 15 serving as the other member of the locking device is projected downward from a position opposite to the movable locked piece 10 from both ends in the width direction of the upper wall 9 of the lid 4.
The locking piece 15 has a vertical surface 15a as a surface to be brought into contact with the side wall 6 of the main body 3. On the other hand, the thickness of the locking piece 15 gradually decreases toward the lower tip, and the outer surface becomes an inclined surface. A continuous locking claw 17 is provided.

前記本体３側の鋸歯状に連続した係止溝１２と、蓋４側の鋸歯状に連続した係止爪１７とは互いに連続した複数箇所で係合するように設定している。
本実施形態では係止溝１２および係止爪１７は上下７段としているが、３段以上であれば良い。 The locking groove 12 that is continuous in a sawtooth shape on the side of the main body 3 and the locking claw 17 that is continuous in a sawtooth shape on the side of the lid 4 are set to engage with each other at a plurality of continuous positions.
In the present embodiment, the locking groove 12 and the locking claw 17 have seven steps in the vertical direction, but may be three or more steps.

係止溝１２の各溝１２ａは水平面１２ａ１と傾斜面１２ａ２とで囲んだ形成とし、傾斜面１２ａ２は水平面１２ａ１に対して下向き角度θ１を３０〜４５゜とし、係止溝のピッチは３〜４ｍｍとしている。
係止爪１７の各爪１７ａも水平面１７ａ１と傾斜面１７ａ２とで形成し、傾斜面１７ａ２は水平面１７ａ１に対して下向き角度θ２を３０〜４５゜とし、爪１７ａのピッチは３〜４ｍｍとしている。 Each groove 12a of the locking groove 12 is formed to be surrounded by a horizontal surface 12a1 and an inclined surface 12a2, and the inclined surface 12a2 has a downward angle θ1 of 30 to 45 ° with respect to the horizontal surface 12a1, and the pitch of the locking grooves is 3 to 4 mm. It is said.
Each claw 17a of the locking claw 17 is also formed by a horizontal surface 17a1 and an inclined surface 17a2, and the inclined surface 17a2 has a downward angle θ2 of 30 to 45 ° with respect to the horizontal surface 17a1, and the pitch of the claw 17a is 3 to 4 mm.

図１に示すように、本体３にワイヤハーネス１を貫通した後に、本体３の上端開口８に蓋４を被せて、本体３と蓋４とをロック結合している。ロック方法を以下に説明する。 As shown in FIG. 1, after passing the wire harness 1 through the main body 3, the upper end opening 8 of the main body 3 is covered with a lid 4 to lock the main body 3 and the lid 4. The locking method will be described below.

図３（Ａ）に示すように、本体３の上端開口８に被せた蓋４から下向きに突出する係止片１５を、本体３の両側の側壁６の外面６ａに摺接させて、外面６ａと可動被係止枠１０の間の空間１８に挿入する。該挿入時には係止片１５の挿入側の先端に向けて肉厚を薄くしているため挿入力は軽いが、係止片１５の各係止爪１７は可動被係止片１０の各係止溝１２の傾斜面１２ａ２の突出端を外側へ若干押しながら連続的に乗り越えて下方へ挿入する。蓋４の上壁９の下面が本体３の側壁６の上端面に当接した位置で、下端の係止爪１７ｕが下端の係止溝１２ｕと係合し、各係止爪１７が夫々各係止溝１２と係合し、７箇所で係止爪１７が係止溝１２と係合する。 As shown in FIG. 3A, the locking pieces 15 protruding downward from the lid 4 covering the upper end opening 8 of the main body 3 are brought into sliding contact with the outer surfaces 6a of the side walls 6 on both sides of the main body 3, thereby And is inserted into a space 18 between the movable locked frame 10. At the time of insertion, the insertion force of the locking piece 15 is light because the thickness is reduced toward the insertion-side tip of the locking piece 15, but each locking claw 17 of the locking piece 15 The projecting end of the inclined surface 12a2 of the groove 12 is continuously pushed while being slightly pushed outward and inserted downward. At the position where the lower surface of the upper wall 9 of the lid 4 is in contact with the upper end surface of the side wall 6 of the main body 3, the lower engaging claws 17u are engaged with the lower engaging grooves 12u. The locking claw 17 is engaged with the locking groove 12, and the locking claw 17 is engaged with the locking groove 12 at seven locations.

図３（Ｂ）に示すように、連続した複数段で係止爪１７が係止溝１２に係合するため、係止爪１７を設けた係止片１５は係止溝１２を設けた可動被係止片１０と強固に係合できガタ付きの発生なくロック結合できる。よって、ガタ付きによる異音の発生を無くすことができる。かつ、両側枠１４Ａ、１４Ｂで挟んでいるため、係止爪１７と係止溝１２とはずれて外れることも無い。 As shown in FIG. 3 (B), the locking claw 17 is engaged with the locking groove 12 in a plurality of continuous stages, so that the locking piece 15 provided with the locking claw 17 is movable with the locking groove 12 provided. It can be firmly engaged with the locked piece 10 and can be locked and joined without any play. Therefore, it is possible to eliminate the generation of abnormal noise due to backlash. And since it is pinched | interposed by both-side frame 14A, 14B, the latching claw 17 and the latching groove | channel 12 will not remove | deviate and remove | deviate.

前記のように本体３に蓋４をロック結合した後に、蓋４を本体３から取り外す必要が発生した場合には、可動被係止片１０の下部の押圧解除部１３の外面を側壁６側へ押すと、図３（Ｃ）に示すように、上側部１０ａが支持枠１１との連続部を支点として外方向に回転して空間１８を開く。よって、係止爪１７は係止溝１２から外れるため、係止片１５を上方へと移動させて蓋４を本体３から取り外すことができる。 When the lid 4 needs to be removed from the main body 3 after the lid 4 is locked to the main body 3 as described above, the outer surface of the pressing release portion 13 at the lower part of the movable latching piece 10 is directed to the side wall 6 side. When pushed, as shown in FIG. 3C, the upper portion 10 a rotates outward with the continuous portion with the support frame 11 as a fulcrum, thereby opening the space 18. Therefore, since the locking claw 17 is disengaged from the locking groove 12, the lid 4 can be removed from the main body 3 by moving the locking piece 15 upward.

図４に変形例を示す。
変形例では、蓋４の上壁９の幅方向両側から下向きの周壁２０を設け、該周壁２０の下端から前記係止片１５を突設している。
他の構成および作用は第一実施形態と同一であるため、同一符号を付して説明を省略する。 FIG. 4 shows a modification.
In the modification, a peripheral wall 20 is provided downward from both sides in the width direction of the upper wall 9 of the lid 4, and the locking piece 15 protrudes from the lower end of the peripheral wall 20.
Since other configurations and operations are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

また、前記蓋４は本体３の一方側の側壁と薄肉ヒンジ部を介して一体的に設け、蓋４の幅方向の他端側と本体３の他方側の側壁とに前記係止片と、可動被係止片とを設けてもよく、プロテクタは前記実施形態に限定されない。 Further, the lid 4 is provided integrally with a side wall on one side of the main body 3 via a thin hinge portion, and the locking piece is provided on the other end side in the width direction of the lid 4 and the side wall on the other side of the main body 3; A movable locked piece may be provided, and the protector is not limited to the above embodiment.

図５に第二実施形態を示す。
第二実施形態では、ワイヤハーネス１を接続するジャンクションボックス等の電気接続箱２１のロック装置として、本発明を適用している。
該電気接続箱２１の内部回路材を収容する本体ケース２２に可動被係止片１０を設ける一方、本体ケース２２の上部に被せるカバー２３の周壁２０に前記係止片１５を設けている。この場合、本体ケース２２が第一部材、カバー２３が第二部材となる。
他の構成および作用は第一実施形態と同様であるため、同一符号を付して説明を省略する。 FIG. 5 shows a second embodiment.
In the second embodiment, the present invention is applied as a locking device for an electrical connection box 21 such as a junction box to which the wire harness 1 is connected.
The movable locking piece 10 is provided on the main body case 22 that accommodates the internal circuit material of the electrical connection box 21, while the locking piece 15 is provided on the peripheral wall 20 of the cover 23 that covers the upper portion of the main body case 22. In this case, the main body case 22 is the first member and the cover 23 is the second member.
Since other configurations and operations are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

１ワイヤハーネス
２プロテクタ
３本体（第一部材）
４蓋（第二部材）
６側壁
６ａ外面
１０可動被係止片
１１支持枠
１２係止溝
１３押圧解除部
１５係止片
１７係止爪
１８空間
２１電気接続箱
２２本体ケース
２３カバー 1 Wire harness 2 Protector 3 Body (first member)
4 Lid (second member)
6 Side Wall 6a Outer Surface 10 Movable Locked Piece 11 Support Frame 12 Locking Groove 13 Press Release Portion 15 Locking Piece 17 Locking Claw 18 Space 21 Electrical Connection Box 22 Body Case 23 Cover

Claims

ワイヤハーネスに取り付けられ、互いに結合される樹脂成形品からなる第一部材と第二部材とに設けたロック装置であって、
前記第一部材に向けて前記第二部材から係止片を突設し、該係止片の肉厚を先端に向けて次第に減少して外面を傾斜面とし、該傾斜した外面に鋸歯状に連続する係止爪を設けている一方、
前記第一部材の外面より水平方向の支持枠を突設し、該支持枠の外端に垂直方向の可動被係止片を設け、該可動被係止片は前記支持枠より前記第一部材側の上方に向けて突出する上側部の内面は上方外向きに傾斜させると共に、前記係止爪と係合する鋸歯状の係止溝を連続的に設けると共に、該可動被係止片の前記支持枠より下方へ突出する部分を押圧解除部とし、
前記係止片を前記第一部材と可動被係止片の間に挿入して、連続する複数箇所で前記係止爪と係止溝とを噛み合わせてロック結合すると共に、前記押圧解除部を押すと前記係止爪から係止溝が外れてロック解除できる構成としていることを特徴とするロック装置。 A locking device provided on a first member and a second member made of resin molded products attached to a wire harness and coupled to each other,
A locking piece protrudes from the second member toward the first member, and the thickness of the locking piece gradually decreases toward the tip to make the outer surface an inclined surface, and the inclined outer surface is serrated. While providing continuous locking claws,
A horizontal support frame is projected from the outer surface of the first member, and a vertical movable locked piece is provided at the outer end of the support frame, and the movable locked piece is moved from the support frame to the first member. The inner surface of the upper part protruding upward is inclined upward and outward, and a serrated locking groove that engages with the locking claw is provided continuously, and the movable locked piece is The part that protrudes downward from the support frame is the pressing release part,
The locking piece is inserted between the first member and the movable locked piece, and the locking claw and the locking groove are meshed with each other at a plurality of continuous positions to be locked, and the pressing release portion is A locking device characterized in that when pressed, the locking groove is released from the locking claw and unlocked.

前記連続する係止溝と係止爪は、いずれも少なくとも３個以上を上下段で連続して設け、該各係止溝および各係止爪は水平面と傾斜面とで囲んだ溝であり、傾斜面は水平面に対して下向き３０〜４５゜で突出し、かつ、連続する前記溝ピッチは３〜４ｍｍである請求項１に記載のロック装置。 The continuous locking grooves and the locking claws are each provided with at least three or more continuous in the upper and lower stages, each locking groove and each locking claw being a groove surrounded by a horizontal surface and an inclined surface, The locking device according to claim 1, wherein the inclined surface protrudes at a downward angle of 30 to 45 ° with respect to the horizontal plane, and the continuous groove pitch is 3 to 4 mm.

ワイヤハーネスを貫通保護するプロテクタの蓋を前記第二部材とし、プロテクタの本体を前記第一部材とし、
前記蓋の上壁の外端縁又は蓋の周壁の下端から前記係合片を突設し、前記本体の周壁の外面より前記支持枠を介して可動被係止片を突設している請求項１または請求項２に記載のロック装置。 The lid of the protector that penetrates and protects the wire harness is the second member, the main body of the protector is the first member,
The engaging piece protrudes from the outer edge of the upper wall of the lid or the lower end of the peripheral wall of the lid, and the movable locked piece protrudes from the outer surface of the peripheral wall of the main body via the support frame. The locking device according to claim 1 or 2.