JP2005032557A

JP2005032557A - Combination terminal fittings

Info

Publication number: JP2005032557A
Application number: JP2003196311A
Authority: JP
Inventors: Yujiro Imai; 裕次郎今井
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2003-07-14
Filing date: 2003-07-14
Publication date: 2005-02-03
Anticipated expiration: 2023-07-14
Also published as: JP4340959B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination terminal fitting which is hard to come off in the case the terminal fitting is deformed. <P>SOLUTION: The terminal fittings 1, 2 are respectively provided with plate type mounting parts 3, 24, and both mounting parts 3, 24 are mutually assembled because a coupling part 18 of the mounting part 3 is inserted into a slit 14 installed at one mounting part 24 while both mounting parts 3, 24 are piled on each other in the plate thickness direction. At the inner edge part of the slit 14, a backlash stuffing projection 27 is installed. By this, in the case the terminal fittings 1, 2 are deformed beyond the vicinity of the slit 14, the backlash stuffing projection 27 restricts the backlash of the both mounting parts 3, 24, thereby preventing the assembling of both mounting parts 3, 24, from coming off. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、組合せ端子金具に関する。
【０００２】
【従来の技術】
組合せ端子金具の一例として、図８に示したものが知られている。一方の端子金具１００には、電線Ｗの端部が接続される電線接続部１０１と、図示しないボルトを挿通可能な取付孔１０２を有した略板状の取付部１０３とが設けられている。もう一方の端子金具１０４には、同じく電線Ｗの端部が圧着される電線接続部１０１と、図示しないボルトを挿通可能な取付孔１０２を有した略板状の取付部１０５とが設けられるとともに、先細り状に延出した取付部１０５の先端には連れ回り防止用の回り止め部１０６が下方へ向けて突設されている。両取付部１０３，１０５は取付孔１０２回りが互いにほぼ対称構造となっており、両端子金具１００，１０４の各取付部１０３，１０５には、それぞれ取付孔１０２を挟んだ位置に、係止突起１０７を備えた第１係合部１０８と、係止孔１０９を備えた第２係合部１１０とが段差状に設けられている。また、各係合部１０８，１１０には、それぞれ側方へ開放したスリット１１１，１１２が前後一対ずつ形成されている。
【０００３】
組み付けに際しては、両端子金具１００，１０４を上下に重ねつつ互いの第１係合部１０８を相手側端子金具の取付孔１０２の内側に進入させる。そして、両取付部１０３，１０５を板面に沿って相対的にスライドさせ、スリット１１１に相手側端子金具の第２係合部１１０を、スリット１１２に相手側端子金具の第１係合部１０８をそれぞれ差し込むようにする。これにより、図９及び図１０（Ａ）に示すように、両端子金具１００，１０４が取付孔１０２，１０２を整合させた状態で離脱不能に組み付けられる。
なお、この種の組合せ端子金具の一例として、特許文献１に記載されたものがある。
【０００４】
【特許文献１】
特開平１１−６７３０５号公報
【０００５】
【発明が解決しようとする課題】
上記の組合せ端子金具１００，１０４では、回り止め部１０６や電線接続部１０１等の部位に無理な力が加えられると、例えば図１０（Ｂ）に示すように、その部位がスリット１１１，１１２付近から折れ曲がってしまうことがある。このように変形すると、両端子金具１００，１０４が上下方向（厚み方向）にがたつきを生じるため、係止突起１０７が係止孔１０９より外れて、両端子金具１００，１０４が離脱してしまうおそれがあった。
本発明は、上記事情に鑑みてなされたもので、その目的は、端子金具が変形した場合でも外れにくい組合せ端子金具を提供するところにある。
【０００６】
【課題を解決するための手段】
上記の課題を解決するための請求項１の発明に係る組合せ端子金具は、略板状の取付部を備えた一対の端子金具からなり、前記両取付部を互いに板厚方向に重ねつつ、一方の取付部に設けられたスリットに他方の取付部を差し込むことで、両取付部が互いに組み付けられるようにした組合せ端子金具であって、前記スリットの内側には、相手側に当接してがたつきを規制するがた詰め突起が設けられているところに特徴を有する。
【０００７】
請求項２の発明は、請求項１に記載のものにおいて、前記両端子金具の取付部には、組み付け時に互いに整合するボルト止め用の取付孔がそれぞれ貫通して形成され、前記スリットがその取付孔の周囲に設けられたものであって、前記両端子金具のうちの少なくとも一方の取付部には、取付面側に係止することで、ボルト締め時の連れ回りを規制する回り止め部が延出して設けられるとともに、前記がた詰め突起が前記回り止め部寄り位置に配設されたスリットの内縁部に形成されているところに特徴を有する。
【０００８】
【発明の作用および効果】
請求項１の発明によれば、端子金具がスリットの近傍から変形したような場合でも、がた詰め突起が両取付部間のがたつきを規制するため、両端子金具の組み付けが外れることが防止される。
【０００９】
請求項２の発明によれば、一方の取付部における回り止め部寄り位置に配設されたスリットの内縁部にがた詰め突起が形成されているため、回り止め部側が変形したような場合であっても両取付部間のがたつきを規制でき、よって両端子金具の組み付けが外れることを防止できる。
【００１０】
【発明の実施の形態】
＜第１実施形態＞
次に本発明の第１実施形態について図１から図７を参照して説明する。
本実施形態の組合せ端子金具は、互いに上下に重ね合わせた状態で組み付けられる一対の端子金具１，２から構成されている。両端子金具１，２は、いずれも所定形状に打ち抜いた導電性の金属板材を曲げ加工して形成される。なお、以下の説明においては、図２及び図３の上側を前方とする。また、両端子金具１，２間で同一構造のものについては、同一符号を付して、重複する説明を一部省略する。
【００１１】
上側に組み付けられる端子金具１は、図１及び図２に示すように、板状で角部が円弧状をなす略正方形の取付部３と、この取付部３の後縁右端から後方へ延出する電線接続部４とからなる。電線接続部４は、電線Ｗの芯線をかしめ付ける前側のワイヤバレル４Ａと、電線Ｗの被覆をかしめ付ける後側のインシュレーションバレル４Ｂとをそれぞれ左右一対ずつ上方へ立ち上げて形成されている。取付部３は、左右方向に長い前後一対の平板部５Ｆ，５Ｒと、この平板部５Ｆ，５Ｒの左端部同士を橋渡し状に連結する第１係合部６と、両平板部５Ｆ，５Ｒの右端部同士を橋渡し状に連結する第２係合部７とからなり、これらに囲まれた中央部分には、ボルトを貫通させるための取付孔８が開口されている。両平板部５Ｆ，５Ｒは、同じ高さに位置しており、またそれぞれ第２係合部７付近に接触突起９が下方へ叩き出されて形成されている。
【００１２】
第１係合部６は、より詳細には、前後に長い平板状の第１受け板部１１を備え、その前後両端部が略上下方向に向けて曲げられた一対の連結部１２を介して平板部５Ｆ，５Ｒの左端寄りに連結されており、第１受け板部１１が平板部５Ｆ，５Ｒに対して板厚略一枚分程度低くなるような段差状をなしている。また、第１受け板部１１には、その左端縁から、タブ状の第１差込部１３が板面に沿って突出して形成されている。さらに、この第１差込部１３の前後端縁部と平板部５Ｆ，５Ｒの端縁部と連結部１２とに囲われた領域には、左右方向に延びて右方へ開放するスリット１４が形成されている。また、第１差込部１３の上面には、上方へ叩き出されかつ左方へ向かって下り勾配となる係止突起１５が形成されている。
【００１３】
また、第２係合部７は、より詳細には、前後に長い略平板状の第２受け板部１７を備え、その前後両端部が略上下方向に向けて曲げられた一対の連結部１８を介して平板部５Ｆ，５Ｒの右端に連結されており、第２受け板部１７が平板部５Ｆ，５Ｒに対して板厚略一枚分程度低くなるような段差状をなしている。また、第２受け板部１７には、その左端縁から、平板状の第２差込部１９が板面に沿って突出して形成されている。さらに、この第２差込部１９の前後端縁部と平板部５Ｆ，５Ｒの端縁部と連結部１８とに囲われた領域には、左右方向に延びて右方へ開放するスリット２０が形成されている。また、第２受け板部１７には、長方形の係止孔２１が上下に貫通して形成されており、第２差込部１９の上面にはその左端縁から係止孔２１に至るテーパ面２２が形成されている。
【００１４】
一方、下側に組み付けられる端子金具２は、図１及び図３に示すように、板状をなす取付部２４の後端縁左端部から電線接続部４を延出させたものであり、電線接続部４は、電線Ｗの芯線をかしめ付ける前側のワイヤバレル４Ａと、電線Ｗの被覆をかしめ付ける後側のインシュレーションバレル４Ｂとをそれぞれ左右一対ずつ上方へ立ち上げて形成されている。取付部２４は、前後一対の平板部２５Ｆ，２５Ｒと、この両平板部２５Ｆ，２５Ｒの右端部同士を連結する第１係合部６と、両平板部２５Ｆ，２５Ｒの左端部同士を連結する第２係合部７とを備え、中央に取付孔８を有している。この２つの係合部６，７は、上記端子金具１の係合部６，７を前後方向の軸を中心として１８０°回転させたものであり、両端子金具１，２の取付部３，２４における取付孔８回りの構造は、前後方向の軸に関して概ね対称の関係となっている。また、両平板部２５Ｆ，２５Ｒには、それぞれ第２係合部７付近に接触突起９が上方へ叩き出されて形成されている。また、平板部２５Ｆの前部は、前方へ先細り状に延出しており、その前端部から下方へ板状の回り止め部２６が突出して形成されている。この回り止め部２６は、取付面付近に凹設された溝部（図示せず）に嵌まり込むことで、ボルトを回し付けるときに、端子金具１，２の連れ回りを規制することができるので、ボルト締め操作が容易となる。
【００１５】
さて、両端子金具１，２の各スリット１４にはそれぞれ相手側端子金具の連結部１８を、各スリット２０には相手側の連結部１２を差し込んで係合可能とされ、それぞれのスリット１４，２０の内縁部と差し込まれる連結部１２，１８との間には若干のクリアランスが設定されている。また、端子金具２における平板部２５Ｆ，２５Ｒの端縁部であってスリット１４，２０の内縁部には、それぞれがた詰め突起２７がスリット１４，２０の内側へ突出して形成されており、これらのがた詰め突起２７が差し込まれた連結部１２，１８に対して当接することで、スリット１４，２０内における連結部１２，１８のがたつきが規制されるようになっている。
【００１６】
次に本発明の作用を説明する。
組み付けに際しては、まず、図１に矢線で示すように、端子金具１を端子金具２の上面に重ねつつ両端子金具１，２の第１係合部６をそれぞれ相手側の取付孔８の内側に進入させる。この状態から端子金具１を端子金具２に対して図２の左方向へ板面に沿ってスライドさせると、端子金具１の差込部１３，１９がそれぞれ相手の端子金具２の差込部１３，１９の下側に進入するとともに、各第１差込部１３の係止突起１５が相手側のテーパ面２２に乗り上げて、第１差込部１３が厚み方向に若干撓み変形する。一方で、各接触突起９が相手側の平板部５Ｆ，５Ｒ，２５Ｆ，２５Ｒに当接することで、各平板部５Ｆ，５Ｒ，２５Ｆ，２５Ｒが互いに相手側から若干離間して、両端子金具１，２が互いに反り返るような姿勢に弾性的に変形する。両端子金具１，２をさらにスライドさせると、各差込部１３，１９がそれぞれ相手側の受け板部１１，１７に重なる位置まで差し込まれるとともに、各連結部１２が相手のスリット２０に、各連結部１８が相手のスリット１４に差し込まれる。端子金具１の連結部１２，１８が端子金具２のスリット１４，２０へ進入すると、スリット１４，２０の内縁部に設けられたがた詰め突起２７の先端がその連結部１２，１８に当接して若干押し潰されながら、連結部１２，１８が奥側へ挿入される。
【００１７】
そして、両端子金具１，２が取付孔８，８同士が整合する正規の組み付け位置まで至ると、図４から図６に示すように、厚み方向に撓み変形していた第１差込部１３が復元変形するとともに、係止突起１５が相手側の係止孔２１に嵌合し、これにより両取付部３，２４の逆方向のスライドが規制され、両端子金具１，２が両端子金具１，２が離脱不能に保持される。この正規の組み付け状態では、両端子金具１，２における第１係合部６の第１差込部１３がそれぞれ相手側の第２係合部７の第２受け板部１７の反対面側に差し込まれて、この噛み合いによって両端子金具１，２が厚み方向（上下方向）に離脱することが規制される。また、この組み付け状態においては、側方から見ると、互いのスリット１４，２０内に連結部１２，１８が差し込まれた部分において、両端子金具１，２が交差した形態となっており、また端子金具２におけるスリット１４，２０の内縁部に設けられたがた詰め突起２７が相手側の連結部１２における前面側又は後面側に密着することで、両取付部３，２４のがたつきが規制されている。
【００１８】
上記のようにして組み付けられた端子金具１，２は、回り止め部２６を取付面付近の溝部（図示せず）に嵌め込むとともに、ボルトを両取付孔８に挿通させてねじ締めすることで取り付けられる。この取り付けが完了するまでの間には、両端子金具１，２に無理な力が加えられて端子金具１，２の一部が変形してしまうことが起こり得る。この場合、第１，第２係合部６，７の噛み合い部分は比較的強度が高いため変形を生じにくいことから、平板部５Ｆ，５Ｒ，２５Ｆ，２５Ｒのうちのいずれかが各連結部１２，１８との境界部分を軸として傾くような変形を生じる可能性が比較的高い。一例として図７には、端子金具２の平板部２５Ｆが連結部１２，１８との境界部分から下向きに傾くように変形した状態を示した。この場合には、平板部５Ｆ，２５Ｆの各接触突起９が相手側の平板部５Ｆ，２５Ｆから離間するため、接触突起９による上下方向への変位に対する規制はない状態になる。しかしながら、スリット１４，２０の内縁部に設けられたがた詰め突起２７が、平板部２５Ｆの変形に伴って相手側の連結部１２，１８の外面斜め下に回り込んでおり、かつ同がた詰め突起２７が平板部２５Ｆの変形の軸中心近傍に位置してるため、連結部１２，１８からほとんど離間することなく連結部１２，１８に当接した状態を保つことから、各連結部１２，１８がスリット１４，２０内にほぼ緊密に保持され、よって両取付部３，２４が互いに上下にがたつくことが規制される（たとえがたついたとしてもそのがたつき量は僅かである。）。従って、係止突起１５が相手側の係止孔２１から離脱することが防止され、両係合部６，７の係合状態を維持できる。なお、端子金具２の後端側（電線接続部４及び平板部２５Ｒ）が下側に変形した場合でも上記と同様に、平板部２５Ｒに設けられたがた詰め突起２７により両取付部３，２４のがたつきが規制される。また、端子金具１の平板部５Ｆ，５Ｒが上側に変形した場合にもやはりがた詰め突起２７によって両取付部３，２４のがたつきが規制される。
【００１９】
以上のように本実施形態によれば、端子金具１，２がスリット１４，２０の近傍から変形したような場合でも、がた詰め突起２７が両取付部３，２４のがたつきを規制するため、両端子金具１，２の組み付けが外れることが防止される。
また、一方の取付部２４における回り止め部２６寄り位置に配設されたスリット１４，２０（端子金具２における前側のスリット）の内縁部にがた詰め突起２７が形成されているため、回り止め部２６側が変形した場合であっても両取付部３，２４間のがたつきを規制でき、両端子金具１，２の組み付けが外れることを防止できる。
【００２０】
＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施態様も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
（１）上記実施形態では、一対の端子金具からなる組合せ端子金具を示したが、本発明によれば、組合せ端子金具を３つ以上の端子金具から構成しても良く、例えば各端子金具の取付部を３段以上積み重ねた状態で組み付け、上下に隣り合う取付部間においてがた詰め突起にてがたつきを規制するような構成としても良い。
（２）上記実施形態では、がた詰め突起を一方の端子金具のみに設けたが、がた詰め突起を両方の端子金具に設けても良い。また、がた詰め突起の個数、位置、形状等は適宜変更できる。また、上記実施形態では、がた詰め突起をスリットの内縁部に設けたが、本発明によれば、相手側の連結部にスリットの内縁部に対して当接可能ながた詰め突起を突出して形成しても良い。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る組合せ端子金具の組み付け前の状態を示す斜視図
【図２】上側の端子金具の平面図
【図３】下側の端子金具の平面図
【図４】組合せ端子金具の組み付け後の状態を示す斜視図
【図５】その底面図
【図６】その側面図
【図７】端子金具が変形した状態を示す側面図
【図８】従来例に係る組合せ端子金具の組み付け前の状態を示す斜視図
【図９】従来例に係る組合せ端子金具の組み付け後の状態を示す斜視図
【図１０】（Ａ）従来例に係る組合せ端子金具の係合部分の部分拡大側面図
（Ｂ）端子金具が変形した状態を示す部分拡大側面図
【符号の説明】
１，２…端子金具
３，２４…取付部
６…第１係合部
７…第２係合部
８…取付孔
１４，２０…スリット
２６…回り止め部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combination terminal fitting.
[0002]
[Prior art]
As an example of the combination terminal fitting, one shown in FIG. 8 is known. One terminal fitting 100 is provided with a wire connecting portion 101 to which an end of the wire W is connected and a substantially plate-like mounting portion 103 having a mounting hole 102 through which a bolt (not shown) can be inserted. The other terminal fitting 104 is provided with an electric wire connecting portion 101 to which the end of the electric wire W is crimped and a substantially plate-like attachment portion 105 having an attachment hole 102 through which a bolt (not shown) can be inserted. An anti-rotation portion 106 for preventing rotation is projected downward from the tip of the attachment portion 105 extending in a tapered shape. The both mounting portions 103 and 105 have a substantially symmetrical structure around the mounting hole 102, and the mounting portions 103 and 105 of the both terminal fittings 100 and 104 have locking projections at positions where the mounting hole 102 is sandwiched, respectively. A first engagement portion 108 provided with 107 and a second engagement portion 110 provided with a locking hole 109 are provided in steps. Each of the engaging portions 108 and 110 is formed with a pair of front and rear slits 111 and 112 that are open to the side.
[0003]
At the time of assembly, the first engaging portions 108 are made to enter the insides of the mounting holes 102 of the mating terminal fitting while the two terminal fittings 100 and 104 are stacked one above the other. Then, both mounting portions 103 and 105 are relatively slid along the plate surface, the second engaging portion 110 of the mating terminal fitting is placed in the slit 111, and the first engaging portion 108 of the mating terminal fitting is placed in the slit 112. To be inserted respectively. As a result, as shown in FIGS. 9 and 10A, the two terminal fittings 100, 104 are assembled so as not to be detached with the mounting holes 102, 102 aligned.
In addition, there exists what was described in patent document 1 as an example of this kind of combination terminal metal fitting.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-67305
[Problems to be solved by the invention]
In the combination terminal fittings 100 and 104, when an excessive force is applied to the parts such as the rotation stopper part 106 and the electric wire connection part 101, the part is located near the slits 111 and 112, for example, as shown in FIG. May be bent. When deformed in this way, both the terminal fittings 100 and 104 are wobbled in the vertical direction (thickness direction), so that the locking projection 107 is detached from the locking hole 109 and the both terminal fittings 100 and 104 are detached. There was a risk of it.
This invention is made | formed in view of the said situation, The objective is to provide the combination terminal metal fitting which cannot be removed easily even when a terminal metal fitting deform | transforms.
[0006]
[Means for Solving the Problems]
The combination terminal fitting according to the invention of claim 1 for solving the above-mentioned problem is composed of a pair of terminal fittings provided with substantially plate-like attachment portions, and the two attachment portions are overlapped with each other in the plate thickness direction. A combination terminal fitting in which the other mounting portion is inserted into the slit provided in the mounting portion so that the both mounting portions can be assembled with each other. It is characterized in that it has a padding protrusion that restricts sticking.
[0007]
According to a second aspect of the present invention, in the first aspect of the present invention, the mounting portions of the two terminal fittings are respectively formed with through holes for bolting that are aligned with each other when assembled, and the slits are attached to the mounting portions. It is provided around the hole, and at least one of the two terminal fittings has a non-rotating portion for restricting rotation when tightening the bolt by locking to the mounting surface side. In addition to being provided to extend, the above-mentioned protrusions are characterized in that they are formed on the inner edge portion of the slit disposed near the detent portion.
[0008]
Operation and effect of the invention
According to the invention of claim 1, even when the terminal fitting is deformed from the vicinity of the slit, the backlash projection restricts the rattling between the two mounting portions, so that the assembly of the two terminal fittings can be removed. Is prevented.
[0009]
According to the second aspect of the present invention, since the ratchet projection is formed on the inner edge of the slit disposed at the position close to the detent portion in the one attachment portion, the detent portion side is deformed. Even if it exists, it can control the shakiness between both attachment parts, and can prevent that the assembly | attachment of both terminal metal fittings remove | deviates.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
<First Embodiment>
Next, a first embodiment of the present invention will be described with reference to FIGS.
The combination terminal metal fitting of this embodiment is comprised from a pair of terminal metal fittings 1 and 2 assembled | attached in the state piled up mutually. Both terminal fittings 1 and 2 are formed by bending a conductive metal plate material punched into a predetermined shape. In the following description, the upper side of FIGS. 2 and 3 is the front. Moreover, about the thing of the same structure between both the terminal metal fittings 1 and 2, the same code | symbol is attached | subjected and some description is abbreviate | omitted.
[0011]
As shown in FIG. 1 and FIG. 2, the terminal fitting 1 assembled on the upper side extends substantially rearward from the right end of the rear edge of the mounting portion 3, and a substantially square mounting portion 3 having a plate shape and an arcuate corner. It consists of the electric wire connection part 4 to do. The electric wire connecting portion 4 is formed by raising a front wire barrel 4A for caulking the core wire of the electric wire W and a rear insulation barrel 4B for caulking the coating of the electric wire W one by one to the left and right. The attachment portion 3 includes a pair of front and rear flat plate portions 5F and 5R that are long in the left-right direction, a first engagement portion 6 that connects the left end portions of the flat plate portions 5F and 5R in a bridging manner, and both flat plate portions 5F and 5R. It consists of a second engagement portion 7 that connects the right end portions in a bridging manner, and an attachment hole 8 for allowing the bolt to pass through is opened in a central portion surrounded by these. Both flat plate portions 5F and 5R are located at the same height, and contact protrusions 9 are struck downward in the vicinity of the second engaging portion 7, respectively.
[0012]
More specifically, the first engaging portion 6 includes a first receiving plate portion 11 having a flat plate shape that is long in the front and rear directions, and a pair of connecting portions 12 whose front and rear end portions are bent in a substantially vertical direction. The flat plate portions 5F and 5R are connected to the left end of the flat plate portions 5F and 5R, and the first receiving plate portion 11 has a stepped shape that is approximately one plate lower than the flat plate portions 5F and 5R. Further, the first receiving plate portion 11 is formed with a tab-like first insertion portion 13 protruding from the left end edge along the plate surface. Furthermore, a slit 14 that extends in the left-right direction and opens to the right is formed in a region surrounded by the front and rear end edges of the first insertion part 13, the end edges of the flat plate parts 5F and 5R, and the connecting part 12. Is formed. Further, a locking projection 15 is formed on the upper surface of the first insertion portion 13 so as to be struck upward and to descend to the left.
[0013]
More specifically, the second engaging portion 7 includes a substantially flat second receiving plate portion 17 that is long in the front and rear directions, and a pair of connecting portions 18 whose front and rear end portions are bent in a substantially vertical direction. Are connected to the right ends of the flat plate portions 5F and 5R, and the second receiving plate portion 17 has a stepped shape that is approximately one plate lower than the flat plate portions 5F and 5R. The second receiving plate portion 17 is formed with a flat plate-like second insertion portion 19 protruding from the left end edge along the plate surface. Further, a slit 20 that extends in the left-right direction and opens to the right is formed in a region surrounded by the front and rear end edges of the second insertion part 19, the end edges of the flat plate parts 5F and 5R, and the connecting part 18. Is formed. Further, the second receiving plate portion 17 is formed with a rectangular locking hole 21 penetrating vertically, and the upper surface of the second insertion portion 19 is a tapered surface extending from the left end edge to the locking hole 21. 22 is formed.
[0014]
On the other hand, as shown in FIGS. 1 and 3, the terminal fitting 2 assembled on the lower side is obtained by extending the wire connecting portion 4 from the left end portion of the rear end edge of the mounting portion 24 having a plate shape. The connecting portion 4 is formed by raising a front wire barrel 4A for caulking the core wire of the electric wire W and a rear insulation barrel 4B for caulking the coating of the electric wire W one by one to the left and right. The mounting portion 24 connects the pair of front and rear flat plate portions 25F and 25R, the first engagement portion 6 that connects the right end portions of the flat plate portions 25F and 25R, and the left end portions of the flat plate portions 25F and 25R. The second engagement portion 7 is provided, and a mounting hole 8 is provided at the center. The two engaging portions 6 and 7 are obtained by rotating the engaging portions 6 and 7 of the terminal fitting 1 by 180 ° about the front-rear direction axis, The structure around the mounting hole 8 in 24 is generally symmetrical with respect to the longitudinal axis. Further, on both flat plate portions 25F and 25R, contact protrusions 9 are formed by knocking upward in the vicinity of the second engaging portion 7, respectively. In addition, the front portion of the flat plate portion 25F extends forward in a tapered shape, and a plate-like detent portion 26 projects downward from the front end portion. Since the rotation stopper 26 is fitted into a groove (not shown) recessed near the mounting surface, the rotation of the terminal fittings 1 and 2 can be restricted when the bolt is turned. Bolt tightening operation becomes easy.
[0015]
Now, the connecting portions 18 of the mating terminal fittings are inserted into the respective slits 14 of the two terminal fittings 1 and 2, and the mating connecting portions 12 are inserted into the respective slits 20 so as to be engaged with each other. A slight clearance is set between the inner edge portion 20 and the connecting portions 12 and 18 to be inserted. Further, on the inner edges of the flat plates 25F and 25R in the terminal fitting 2 and on the inner edges of the slits 14 and 20, the padding projections 27 are formed so as to protrude inside the slits 14 and 20, respectively. The backlash of the connecting parts 12, 18 in the slits 14, 20 is regulated by contacting the connecting parts 12, 18 into which the plugging protrusions 27 are inserted.
[0016]
Next, the operation of the present invention will be described.
When assembling, first, as shown by an arrow in FIG. 1, the first engagement portions 6 of the two terminal fittings 1 and 2 are respectively connected to the mating mounting holes 8 while the terminal fitting 1 is overlapped on the upper surface of the terminal fitting 2. Enter inside. When the terminal fitting 1 is slid along the plate surface to the left in FIG. 2 with respect to the terminal fitting 2 from this state, the insertion portions 13 and 19 of the terminal fitting 1 are respectively inserted into the insertion portion 13 of the mating terminal fitting 2. , 19 and the locking projection 15 of each first insertion portion 13 rides on the taper surface 22 on the other side, and the first insertion portion 13 is slightly bent and deformed in the thickness direction. On the other hand, the contact protrusions 9 abut against the mating flat plate portions 5F, 5R, 25F, and 25R, so that the flat plate portions 5F, 5R, 25F, and 25R are slightly separated from the mating side, and the both terminal fittings 1 , 2 are elastically deformed to warp each other. When the terminal fittings 1 and 2 are further slid, the insertion portions 13 and 19 are inserted to the positions where they overlap the mating receiving plate portions 11 and 17, respectively, and the connecting portions 12 are inserted into the mating slits 20 respectively. The connecting portion 18 is inserted into the mating slit 14. When the connecting portions 12 and 18 of the terminal fitting 1 enter the slits 14 and 20 of the terminal fitting 2, the leading ends of the padding protrusions 27 provided on the inner edge portions of the slits 14 and 20 come into contact with the connecting portions 12 and 18. The connecting portions 12 and 18 are inserted to the back side while being slightly crushed.
[0017]
Then, when the terminal fittings 1 and 2 reach the proper assembly position where the mounting holes 8 and 8 are aligned, as shown in FIGS. 4 to 6, the first insertion portion 13 that has been bent and deformed in the thickness direction is formed. Is restored and deformed, and the locking projection 15 is fitted into the mating locking hole 21, thereby restricting the sliding of the mounting portions 3, 24 in the opposite direction. 1 and 2 are held so as not to be detached. In this regular assembly state, the first insertion portion 13 of the first engagement portion 6 in each of the terminal fittings 1 and 2 is on the opposite surface side of the second receiving plate portion 17 of the second engagement portion 7 on the other side. The terminal fittings 1 and 2 are prevented from being detached in the thickness direction (vertical direction) by being inserted and engaged. Further, in this assembled state, when viewed from the side, the terminal fittings 1 and 2 are crossed at the portions where the connecting portions 12 and 18 are inserted into the slits 14 and 20, respectively. The loose projections 27 provided on the inner edge portions of the slits 14 and 20 in the terminal fitting 2 are in close contact with the front surface side or the rear surface side of the connecting portion 12 on the mating side, so that the mounting portions 3 and 24 are not rattled. It is regulated.
[0018]
The terminal fittings 1 and 2 assembled as described above are fitted by fitting the rotation-preventing portion 26 into a groove portion (not shown) in the vicinity of the attachment surface and screwing the bolts through the attachment holes 8. It is attached. Until this attachment is completed, it is possible that an unreasonable force is applied to both the terminal fittings 1 and 2 and a part of the terminal fittings 1 and 2 is deformed. In this case, since the meshing portions of the first and second engaging portions 6 and 7 have relatively high strength and are not easily deformed, any one of the flat plate portions 5F, 5R, 25F, and 25R is connected to each connecting portion 12. , 18 is relatively likely to be deformed with the boundary portion as an axis. As an example, FIG. 7 shows a state in which the flat plate portion 25F of the terminal fitting 2 is deformed so as to be inclined downward from the boundary portion with the connecting portions 12 and 18. In this case, since the contact protrusions 9 of the flat plate portions 5F and 25F are separated from the mating flat plate portions 5F and 25F, there is no restriction on the vertical displacement by the contact protrusions 9. However, the stuffing protrusion 27 provided on the inner edge of the slits 14 and 20 wraps around and obliquely below the outer surface of the mating connecting portions 12 and 18 with the deformation of the flat plate portion 25F. Since the stuffing protrusion 27 is located in the vicinity of the axial center of deformation of the flat plate portion 25F, the contact portions 12 and 18 are kept in contact with the connection portions 12 and 18 without being substantially separated from each other. 18 is held almost tightly in the slits 14 and 20, so that the mounting portions 3 and 24 are restricted from rattling up and down with each other (even if shaky, the amount of rattling is slight). . Accordingly, the locking protrusion 15 is prevented from being detached from the mating locking hole 21, and the engaged state of both the engaging portions 6 and 7 can be maintained. Even when the rear end side of the terminal fitting 2 (the electric wire connecting portion 4 and the flat plate portion 25R) is deformed downward, both the attachment portions 3, 3 are formed by the padding protrusions 27 provided on the flat plate portion 25R in the same manner as described above. The rattling of 24 is regulated. Further, even when the flat plate portions 5F and 5R of the terminal fitting 1 are deformed upward, the backlash of the mounting portions 3 and 24 is restricted by the loosening projection 27.
[0019]
As described above, according to the present embodiment, even when the terminal fittings 1 and 2 are deformed from the vicinity of the slits 14 and 20, the backlash projections 27 regulate the rattling of the mounting portions 3 and 24. Therefore, it is possible to prevent the both terminal fittings 1 and 2 from being detached.
Further, since the loose projections 27 are formed on the inner edge portions of the slits 14 and 20 (the front slits in the terminal fitting 2) disposed near the rotation preventing portion 26 in the one mounting portion 24, the rotation preventing Even when the side of the portion 26 is deformed, rattling between the mounting portions 3 and 24 can be restricted, and assembly of the two terminal fittings 1 and 2 can be prevented from being detached.
[0020]
<Other embodiments>
The present invention is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, a combination terminal fitting made of a pair of terminal fittings has been shown. However, according to the present invention, the combination terminal fitting may be composed of three or more terminal fittings. It is good also as a structure which attaches | assembles in the state which piled up the attachment part three or more steps, and regulates rattling by the backlash projection between the attachment parts adjacent up and down.
(2) In the above embodiment, the backpacking projection is provided only on one terminal fitting, but the backpacking projection may be provided on both terminal fittings. Further, the number, position, shape, and the like of the backpacking protrusions can be changed as appropriate. Further, in the above-described embodiment, the bumping protrusion is provided on the inner edge portion of the slit. However, according to the present invention, the bumping protrusion that can come into contact with the inner edge portion of the slit protrudes to the mating connecting portion. May be formed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state before assembly of a combination terminal fitting according to a first embodiment of the present invention. FIG. 2 is a plan view of an upper terminal fitting. FIG. 3 is a plan view of a lower terminal fitting. 4] Perspective view showing the state after assembly of the terminal fittings [FIG. 5] Bottom view thereof [FIG. 6] Side view thereof [FIG. 7] Side view showing the terminal fittings deformed [FIG. FIG. 9 is a perspective view showing a state after assembly of the combination terminal fitting according to the conventional example. FIG. 10A is an engagement portion of the combination terminal fitting according to the conventional example. (B) Partial enlarged side view showing the deformed terminal fitting
DESCRIPTION OF SYMBOLS 1, 2 ... Terminal metal fittings 3, 24 ... Mounting part 6 ... 1st engaging part 7 ... 2nd engaging part 8 ... Mounting hole 14, 20 ... Slit 26 ... Anti-rotation part

Claims

It consists of a pair of terminal fittings provided with a substantially plate-like attachment part, and both attachments are made by inserting the other attachment part into the slit provided in one attachment part while the two attachment parts overlap each other in the plate thickness direction. A combination terminal fitting that allows parts to be assembled together,
A combination terminal fitting, characterized in that an inner side of the slit is provided with a stuffing protrusion that abuts against the other side and restricts rattling.

The mounting portions of the both terminal fittings are formed with through holes for bolting that match each other when assembled, and the slits are provided around the mounting holes,
At least one of the two terminal fittings is provided with an anti-rotation portion extending to restrict the accompanying rotation at the time of bolt tightening by locking to the attachment surface side, and 2. The combination terminal fitting according to claim 1, wherein the combination terminal fitting is formed at an inner edge portion of a slit disposed near the detent portion.