JP3420207B2 - Cover body with release device and terminal block with release device - Google Patents
Cover body with release device and terminal block with release deviceInfo
- Publication number
- JP3420207B2 JP3420207B2 JP2000356468A JP2000356468A JP3420207B2 JP 3420207 B2 JP3420207 B2 JP 3420207B2 JP 2000356468 A JP2000356468 A JP 2000356468A JP 2000356468 A JP2000356468 A JP 2000356468A JP 3420207 B2 JP3420207 B2 JP 3420207B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- cover body
- shaft
- terminal block
- tightening screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、端子台などに電線
または圧着端子を接続させる締付ねじの弛止装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening screw loosening device for connecting an electric wire or a crimp terminal to a terminal block or the like.
【０００２】[0002]
【従来の技術】従来、各種機器を構成する端子台や表示
灯などには、電線や電線の端部に取付けた圧着端子を、
座金を介して締付ねじ（プラスねじ、マイナスねじを含
む）で締結している。例えば、端子台１は、図１に示す
ごとく、複数の絶縁部片２を所定の長さに形成したガイ
ドレール１５に取付け、連結して形成している。2. Description of the Related Art Conventionally, a terminal block, an indicator light, or the like that constitutes various devices is equipped with an electric wire or a crimp terminal attached to the end of the electric wire.
It is fastened with a tightening screw (including a plus screw and a minus screw) via a washer. For example, as shown in FIG. 1, the terminal block 1 is formed by attaching a plurality of insulating pieces 2 to a guide rail 15 having a predetermined length and connecting them.
【０００３】絶縁部片２は、図２に示すごとく、絶縁性
を有する合成樹脂材により形成され、背面に設けた壁板
部３の上部両側に、例えば必要に応じて取付ける端子カ
バー１７を取付けるため、任意形状をした係止部４、４
をそれぞれ設けてある。さらに、壁板部３の正面略中央
に前方に突出させて設けた仕切部６の下部に端子金具１
０を取付けて両端を掛止させる支持部７、７を形成し、
下端両側にはガイドレール１５を挿通するガイド溝８、
８を設けてある。端子金具１０の略両端にねじ孔（図示
せず）を設け、締付ねじ１３を螺合している。１９は電
線の一端に取付けた圧着端子である。As shown in FIG. 2, the insulating piece 2 is made of a synthetic resin material having an insulating property, and a terminal cover 17 is attached to both sides of the upper portion of the wall plate portion 3 provided on the back surface, for example, if necessary. Therefore, the locking portions 4 and 4 having an arbitrary shape
Are provided respectively. Further, the terminal fitting 1 is provided at a lower portion of the partition portion 6 provided so as to project forward substantially in the center of the front surface of the wall plate portion 3.
0 is attached to form support portions 7 and 7 for hooking both ends,
Guide grooves 8 for inserting the guide rails 15 on both sides of the lower end,
8 is provided. Screw holes (not shown) are provided at substantially both ends of the terminal fitting 10, and the tightening screws 13 are screwed together. Reference numeral 19 is a crimp terminal attached to one end of the electric wire.
【０００４】絶縁部片２に圧着端子１９を取付けるに
は、端子金具１０の締付ねじ１３をいったん外し、圧着
端子１９の孔（図示せず）を端子金具１０のねじ孔と合
致させ、座金１４を介してドライバーなどで締付ねじ１
３で締結している。In order to mount the crimp terminal 19 on the insulating piece 2, the tightening screw 13 of the terminal fitting 10 is once removed, the hole (not shown) of the crimp terminal 19 is aligned with the screw hole of the terminal fitting 10, and the washer is Tightening screw 1 with a screwdriver or the like through 14
It is concluded with 3.
【０００５】前記端子台１の端子金具に取付ける圧着端
子１９は、締付ねじ１３により締結しているため、端子
台１を各種の機器に取付けて使用する場合に、該機器が
受ける振動や衝撃などにより経時的に該締付ねじ１３が
弛むことがある。Since the crimp terminal 19 attached to the terminal fitting of the terminal block 1 is fastened by the tightening screw 13, when the terminal block 1 is attached to various equipment and used, vibration or impact received by the equipment is received. For example, the tightening screw 13 may loosen with time.
【０００６】締付ねじ１３が弛むと電気抵抗が大きくな
って圧着端子１９が熱をもち、時間が経過すると故障や
火災などを起こす原因となる。そのため、各機器に取付
けた端子台は定期的に点検を行い、弛んだ締付ねじを締
直す作業(増締め)を行って機器の故障や事故を防止して
いる。When the tightening screw 13 is loosened, the electric resistance is increased and the crimp terminal 19 is heated, which causes a failure or a fire over time. Therefore, the terminal block attached to each device is regularly inspected and the loosening screws are refastened (re-tightening) to prevent device failures and accidents.
【０００７】[0007]
【発明が解決しようとする課題】前記のように、締付ね
じを具えた端子台を機器に取付けた後、該締付ねじの弛
みを原因とする故障や事故を防止するため、年に何回か
点検を行って締付ねじの増締めを行っている。例えば、
連結端子台の場合は、多数の絶縁部片にそれぞれ取付け
た端子金具に締付ねじで圧着端子を接続している。その
ため、締付ねじの弛みの有無を一つ一つ点検し、必要に
応じて増締め作業を行うため、大変な手間と時間がかか
り非能率的である。このように、多数の締付ねじについ
て点検することは困難であり、年に何回か点検作業を行
わなければならないので大変面倒であると共に、コスト
がかかるという問題点を有していた。As described above, after the terminal block equipped with the tightening screw is attached to the equipment, in order to prevent a failure or an accident caused by the loosening of the tightening screw, Tighten or tighten the tightening screw by checking or turning. For example,
In the case of a connection terminal block, crimp terminals are connected to the terminal fittings attached to a large number of insulating pieces with tightening screws. Therefore, the tightening screws are checked for looseness one by one, and additional tightening work is performed as necessary, which is very time-consuming and inefficient. As described above, it is difficult to inspect a large number of tightening screws, and the inspection work must be performed several times a year, which is very troublesome and costly.
【０００８】そこで本発明は、振動や衝撃などにより機
器に取付けた端子台の締付ねじの弛みを防止することに
より、弛みによる不具合防止や火災発生の防止はもちろ
んのこと、増締め作業を無くして点検作業を少なし、保
守点検を容易にすることを課題とする。Therefore, the present invention prevents loosening of the tightening screw of the terminal block attached to the equipment due to vibration or shock, thereby preventing problems due to loosening and preventing fire from occurring, and eliminating the need for additional tightening work. The task is to reduce inspection work and facilitate maintenance inspection.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記課題を解
決するための手段として、１または２以上の電線または
圧着端子を端子金具に接続する締付ねじを有した端子台
において、両端下部にそれぞれ取外片を設け、その内側
にそれぞれ係止爪を有した基板に、１または２以上設け
た孔部の下側に前方を開放させると共に底面に前方から
Ｕ字溝を形成した収容室を設け、該収容室内には、一方
向にのみ回転する回転軸と、該回転軸の上面に当接させ
て回転軸の逆転を防止する固定片と、前記回転軸および
固定片を下方へ付勢させるばねとを収容してカバー体を
形成してなり、前記端子台の上面に着脱可能に装着した
カバー体の孔部からドライバーを挿入して回転させた回
転軸の下端に設けた突起部を締付ねじのねじ溝部に合致
さることを特徴とする。As a means for solving the above-mentioned problems, the present invention provides a terminal block having tightening screws for connecting one or more electric wires or crimp terminals to terminal fittings. A storage chamber in which a detachment piece is provided in each of the bases, and a front side is opened to the lower side of a hole provided in one or two or more in the substrate having locking claws inside the U-shaped groove from the front side. A rotary shaft that rotates only in one direction, a fixed piece that abuts the upper surface of the rotary shaft to prevent reverse rotation of the rotary shaft, and the rotary shaft and the fixed piece are attached downward. A cover body is formed to accommodate a spring for biasing, and a protrusion provided at the lower end of a rotating shaft rotated by inserting a driver through a hole in the cover body detachably mounted on the upper surface of the terminal block. Is fitted to the thread groove of the tightening screw. That.
【００１０】本発明に係る前記回転軸は、軸部の上面に
プラス形またはマイナス形などの係合部を設け、該軸部
の下面にはプラス形またはマイナス形に形成した突起部
を設けると共に、該軸部の略上方に形成したやや大径な
鍔部の上面にラチェット歯部を形成してある。また、前
記固定片は、外形を角形に形成して前記収容室の内壁面
に掛止させて周方向に固定し、中央に前記回転軸の軸部
を軸支する孔を設け、裏面には前記回転軸のラチェット
歯部と噛合する受歯部を設けて一方向にのみ回転し、逆
方向に回転できない構成にしたことを特徴とするIn the rotary shaft according to the present invention, a plus-type or minus-type engaging portion is provided on the upper surface of the shaft portion, and a plus-type or minus-type protruding portion is provided on the lower surface of the shaft portion. A ratchet tooth portion is formed on the upper surface of a flange portion having a slightly larger diameter formed substantially above the shaft portion. In addition, the fixing piece is formed into a square outer shape and is hooked on an inner wall surface of the storage chamber to be fixed in the circumferential direction. A hole for axially supporting the shaft portion of the rotating shaft is provided in the center, and the back surface is A tooth receiving portion that meshes with the ratchet tooth portion of the rotating shaft is provided to rotate only in one direction and not rotate in the opposite direction.
【００１１】第２の発明は、端子台を構成する絶縁部片
の上部背面に設けた壁板部の上部両側に、カバー体取付
用にそれぞれ爪受部を設けると共に、該絶縁部材に設け
た載置台上に取付けた端子金具の略両端に、頭部にプラ
ス溝またはマイナス溝などのねじ溝を設けた締付ねじを
取付け、両端下部にそれぞれ取外片を設け、その内側に
それぞれ係止爪を有した基板に、１または２以上設けた
孔部の下側に前方を開放させると共に底面に前方からＵ
字溝を形成した収容室を設け、該収容室内に一方向にの
み回転する回転軸と、該回転軸の上面に当接させて回転
軸の逆転を防止する固定片と、前記回転軸および固定片
を下方へ付勢させるばねとを収容してカバー体を形成
し、該カバー体の前記係止爪を前記端子台の爪受部に着
脱可能に係合させ、前記端子台の上面に着脱可能に装着
したカバー体の孔部からドライバーを挿入して回転させ
た回転軸の下端に設けた突起部を締付ねじのねじ溝部に
合致させて前記締付ねじの逆回転を防止させることを特
徴とする。According to a second aspect of the present invention, a claw receiving portion for mounting the cover body is provided on each of both upper sides of a wall plate portion provided on an upper rear surface of an insulating portion piece constituting the terminal block, and the insulating member is provided with the nail receiving portion. Attach tightening screws with screw grooves such as a plus groove or a minus groove on the head to approximately both ends of the terminal metal fittings mounted on the mounting table. In the substrate having the claws, the front side is opened to the lower side of the hole portion provided with one or two or more, and the bottom surface is U-shaped from the front side.
A storage chamber having a groove formed therein is provided, a rotation shaft that rotates only in one direction in the storage chamber, a fixing piece that abuts the upper surface of the rotation shaft to prevent reverse rotation of the rotation shaft, the rotation shaft and the fixed portion. A cover body is formed by accommodating a spring that biases the piece downward, and the locking claw of the cover body is detachably engaged with the claw receiving portion of the terminal block, and is attached to and detached from the upper surface of the terminal block. It is necessary to insert a screwdriver through the hole of the cover body that is mounted so that it can be rotated to match the protrusion on the lower end of the rotating shaft with the thread groove of the tightening screw to prevent reverse rotation of the tightening screw. Characterize.
【００１２】したがって、ばねで付勢させた回転軸を上
方からドライバーで押し下げ、該回転軸の下端に設けた
突起部を、締付ねじの頭部に設けたねじ溝部に合致させ
て、回転軸をラチェト機構により一方向にのみ回転させ
るようにして、逆回転できないようにしてあるので、該
締付ねじの弛みを確実に防止することができる。Therefore, the rotary shaft urged by the spring is pushed down from above by a screwdriver, and the protrusion provided on the lower end of the rotary shaft is matched with the thread groove provided on the head of the tightening screw. Since the ratchet mechanism allows the ratchet mechanism to rotate in only one direction so that it cannot rotate in the reverse direction, it is possible to reliably prevent the tightening screw from loosening.
【００１３】[0013]
【発明の実施の形態】本発明の実施の形態を示す図３か
ら図１０について説明すると、図３は本発明に係る端子
台とカバー体の側面図、図４はカバー体を構成する各部
品の一部省略して分離させた斜視図、図５は基板の断面
図、図６は図５のＡ―Ａ断面図、図７は回転軸の平面
図、図８は回転軸の正面図、図９は固定片の正面図、図
１０は固定片の底面図である。BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIGS. 3 to 10 showing an embodiment of the present invention, FIG. 3 is a side view of a terminal block and a cover body according to the present invention, and FIG. 4 is each component constituting the cover body. 5 is a sectional view of the substrate, FIG. 6 is a sectional view taken along the line AA of FIG. 5, FIG. 7 is a plan view of the rotating shaft, FIG. 8 is a front view of the rotating shaft, 9 is a front view of the fixed piece, and FIG. 10 is a bottom view of the fixed piece.
【００１４】この弛止装置である端子台の上面に着脱可
能に取付ける弛止装置付のカバー体と、上面に前記カバ
ー体を取付けた弛止装置付端子台とについて、以下にま
とめて説明する。A cover body with a loosening device which is detachably attached to the upper surface of the terminal block which is the loosening device, and a terminal block with a loosening device in which the cover body is attached to the upper surface will be collectively described below. .
【００１５】まず図３において、端子台２０を構成する
絶縁部片２１の上部背面側に設けた壁板部２２の上部両
側にそれぞれ爪受部２３を形成し、該壁板部の正面略中
央の上下方向には前方に突出させた仕切部２５を設けて
ある。この仕切部２５の中間に形成した溝部２６内に端
子金具２８を水平方向に収容して取付け、前記絶縁部片
の前面両側に形成した載置台３０、３０の外側に突起を
設け、該端子金具の両端を前記突起に掛止させて取付け
てある。端子金具２８の略両端にはそれぞれ締付ねじを
螺合させるねじ孔（図示せず）を設けてある。First, in FIG. 3, claw receiving portions 23 are formed on both upper sides of a wall plate portion 22 provided on the upper back surface of the insulating portion piece 21 constituting the terminal block 20, and the front surface of the wall plate portion is substantially centered. A partition portion 25 is provided in the up and down direction so as to project forward. Terminal fittings 28 are horizontally accommodated and mounted in a groove portion 26 formed in the middle of the partition portion 25, and projections are provided on the outer sides of the mounting tables 30, 30 formed on both sides of the front surface of the insulating portion piece. Both ends of are attached to the protrusions. Screw holes (not shown) into which fastening screws are screwed are provided at substantially both ends of the terminal fitting 28, respectively.
【００１６】端子金具２８に設けたねじ孔の下部に位置
する載置部３０内にナットを収容し、該載置部にばね室
３２を設けてある。ばね室３２内にはコイルばね３３と
ばね受部３７を収容し、このばね受板３７に連結した軸
部３６の他端に設けた座金部３８のねじ孔（図示せず）
を、前記端子金具２８のねじ孔の上方に位置させてあ
る。この座金部３８のねじ孔には丸座金４０を介して締
付ねじ４２を取付けてあり、該座金部は端子金具に対し
て上下動可能に収容してある。A nut is accommodated in a mounting portion 30 located below a screw hole provided in the terminal fitting 28, and a spring chamber 32 is provided in the mounting portion. A coil spring 33 and a spring receiving portion 37 are housed in the spring chamber 32, and a screw hole (not shown) of a washer portion 38 provided at the other end of the shaft portion 36 connected to the spring receiving plate 37.
Is located above the screw hole of the terminal fitting 28. A tightening screw 42 is attached to the screw hole of the washer portion 38 via a round washer 40, and the washer portion is housed so as to be vertically movable with respect to the terminal fitting.
【００１７】締付ねじ４２の頭部には、プラス形やマイ
ナス形さらには両者を一体に組み合わせた形などの係合
部４３を設けてある。４５、４５は絶縁部片２１の下部
両側に設けたガイド溝で、一方のガイド溝４５を有する
ガイド片４５ａの下部は、絶縁部片２１から離れてある
程度の可撓性を有しているため該ガイド溝４５を外方に
押し広げてガイドレールの横から外せるようにしてあ
る。At the head of the tightening screw 42, an engaging portion 43 of a plus type, a minus type or a combination of the two is provided. Reference numerals 45 and 45 are guide grooves provided on both sides of the lower portion of the insulating portion piece 21, and the lower portion of the guide piece 45a having one guide groove 45 is separated from the insulating portion piece 21 and has a certain degree of flexibility. The guide groove 45 is pushed outward so that it can be removed from the side of the guide rail.
【００１８】図３〜６に示した弛止装置付カバー体５０
は、絶縁性を有する透明または半透明の合成樹脂材によ
り基板５１を形成し、該基板の両端下側には斜め下方に
短い取外片４９、４９を夫々設けてある。この取外片４
９は、たとえば端子台などからカバー体５０を取外すた
めの部片を兼ねている。この取外片４９の内側下方に
は、弾力性を有する係止爪５２、５２をそれぞれ形成し
てある。A cover body 50 with a locking device shown in FIGS.
Has a substrate 51 made of a transparent or semi-transparent synthetic resin material having an insulating property, and short detachment pieces 49, 49 are provided obliquely downward on both lower sides of the substrate. This removal piece 4
The reference numeral 9 also serves as a piece for removing the cover body 50 from a terminal block or the like. Under the inside of the detaching piece 49, elastic locking claws 52, 52 are formed, respectively.
【００１９】基板５１の略両端に対をなす孔部５３、５
３を設け、該孔部の下部に夫々収容室５５を一体に形成
してある。収容室５５は、一方を開放させると共に、該
収容室の底面にも前方からＵ字溝５６を形成してあり、
該収容室の周囲三面は密閉構造である。この収容室内
に、後記する回転軸６０と固定片７０とばね７５を収容
する。さらに、この収容室は上下方向をやや広く形成
し、コイル状のばねを収容して、後記する端子金具の締
付ねじ４２に圧着端子を、１枚ではなく、本実施例のよ
うに２枚取付けても充分なスペースを確保できるように
してある。Holes 53, 5 forming a pair on both ends of the substrate 51.
3 are provided, and the accommodating chambers 55 are integrally formed in the lower portions of the holes. The accommodation chamber 55 has one side open, and a U-shaped groove 56 is formed on the bottom surface of the accommodation chamber 55 from the front side.
The surrounding three surfaces of the storage chamber have a closed structure. A rotary shaft 60, a fixed piece 70, and a spring 75, which will be described later, are housed in this housing chamber. Further, this accommodating chamber is formed to be slightly wider in the vertical direction and accommodates a coil-shaped spring, and a crimping terminal is not provided on the tightening screw 42 of the terminal fitting, which will be described later, instead of one sheet. It is designed so that sufficient space can be secured even if it is installed.
【００２０】図７、８に示した回転軸６０は、略円柱状
に形成した軸部６１の上面中央にドライバーを差し込む
プラス形、マイナス形あるいは両方の形を組み合わせた
形などの係合部６２を設けてある。該係合部は、プラス
形に形成した溝部６２ａの一方を、マイナスドライバー
が係合出来る様に長溝６２ｂに形成してもよい。６５は
前記軸部６１の下面中央に設けた突起部で、前記締付ね
じ４２の頭部に設けたプラス形またはマイナス形などの
形に形成して合致できるように形成してある。The rotating shaft 60 shown in FIGS. 7 and 8 has an engaging portion 62 such as a plus type, a minus type, or a combination of both types in which a driver is inserted in the center of the upper surface of a shaft portion 61 formed in a substantially cylindrical shape. Is provided. The engaging portion may have one of the plus-shaped groove portions 62a formed in the long groove 62b so that a minus driver can engage. Reference numeral 65 denotes a protrusion provided at the center of the lower surface of the shaft portion 61, which is formed in a positive shape or a negative shape provided on the head of the tightening screw 42 so that they can be matched.
【００２１】６７は前記軸部６１の略上部に設けた鍔部
で、前記基板の収容室の底面に形成したＵ字溝５６より
やや大径に形成してあり、該鍔部の上面全体は連続して
ラチェット歯部６８を設けてある、このラチェット歯部
６８を形成する各山の間隔は任意であるが、約１５度の
間隔で形成するの好ましい。該ラチェット歯部６８を形
成する各山の間隔が約１５度より広いと、軸部６１下面
に設けた突起部６５と締付ねじ４２の係合部４３とを合
致させるのが困難となり、また各山の間隔が約１５度よ
り狭まいと十分な山の高さが取れずにラチェット歯部が
外れたり、滑ったりしやすくなることから前記のように
約１５度の間隔が好ましい。回転軸６０の軸部６１の周
面には、該軸部の軽量化と原材料の節約を図るため凹部
６９を設けてある。Reference numeral 67 denotes a flange portion provided substantially above the shaft portion 61, which has a diameter slightly larger than the U-shaped groove 56 formed in the bottom surface of the accommodation chamber of the substrate, and the entire upper surface of the flange portion. The ratchet teeth 68 are continuously provided, and the intervals between the peaks forming the ratchet teeth 68 are arbitrary, but it is preferable to form them at intervals of about 15 degrees. If the intervals between the peaks forming the ratchet tooth portion 68 are wider than about 15 degrees, it becomes difficult to match the protrusion portion 65 provided on the lower surface of the shaft portion 61 with the engaging portion 43 of the tightening screw 42, and If the distance between the peaks is less than about 15 degrees, the height of the peaks cannot be sufficiently secured, and the ratchet teeth are likely to come off or slip, so that the intervals of about 15 degrees are preferable. A concave portion 69 is provided on the peripheral surface of the shaft portion 61 of the rotary shaft 60 in order to reduce the weight of the shaft portion and save the raw material.
【００２２】図９、１０に示したように固定片７０は、
外形を方形等の角形に形成した面取部７１を設け、中央
に前記回転軸６０の軸部６１の上方が挿入できる孔７２
を設けてある。固定片７０の下面には、前記回転軸６０
の鍔部６７に設けたラチェット歯部６８と噛合する受歯
部７３を設けてある。この受歯部７３は固定片７０の下
面全体に設ける必要はなく、孔７２を中心にして対角線
上にそれぞれ約１５度の間隔で片山形に少数設けてあれ
ばよい。As shown in FIGS. 9 and 10, the fixing piece 70 is
A chamfered portion 71 having a rectangular outer shape is provided, and a hole 72 into which the upper portion of the shaft portion 61 of the rotary shaft 60 can be inserted is provided in the center.
Is provided. The rotating shaft 60 is provided on the lower surface of the fixed piece 70.
A tooth receiving portion 73 that meshes with a ratchet tooth portion 68 provided on the collar portion 67 is provided. It is not necessary to provide the tooth receiving portions 73 on the entire lower surface of the fixed piece 70, and it is sufficient that a small number of toothed portions 73 are provided on the diagonal line about the hole 72 at intervals of about 15 degrees in a mountain shape.
【００２３】７５は前記基板５１の下部に設けた収容室
５５内に収容するばねで、コイル状に形成してある。８
０は圧着端子で、電線の一端に取付けられている。８３
は前記締付ねじを締結するドライバーである。Reference numeral 75 denotes a spring housed in a housing chamber 55 provided in the lower part of the substrate 51, which is formed in a coil shape. 8
A crimp terminal 0 is attached to one end of the electric wire. 83
Is a driver for fastening the tightening screw.
【００２４】以下、本発明に係るの実施形態の作用につ
いて説明すると、カバー体５０は、収容室５５内に回転
軸６０と固定片７０とをばね７５で付勢させて互いに当
接させて収容してある。回転軸６０と固定片７０との当
接は、回転軸６０の軸部６１の上端を固定片７０の孔７
２内に挿入させると共に、該固定片の裏面に設けた受歯
部７３と鍔部６７のラチェット歯部６８とを噛合させて
あるため、回転軸６０は一方向にのみ回転するが逆方向
には回転できない構成である。The operation of the embodiment according to the present invention will be described below. In the cover body 50, the rotary shaft 60 and the fixed piece 70 are urged by the spring 75 in the accommodating chamber 55 so that the cover body 50 abuts each other. I am doing it. The abutment of the rotating shaft 60 and the fixed piece 70 is performed by connecting the upper end of the shaft portion 61 of the rotating shaft 60 to the hole 7 of the fixed piece 70.
Since the toothed portion 73 provided on the back surface of the fixed piece and the ratchet toothed portion 68 of the collar portion 67 are engaged with each other, the rotating shaft 60 rotates only in one direction but in the opposite direction. Is a structure that cannot rotate.
【００２５】収容室５５内に収容された固定片７０は、
面取部７１が収容室５５の内壁に掛止されているため回
転せず固定している。一方、回転軸６０は軸部６１の上
端を固定片７０の孔７２内に軸支され、軸部６１の下部
は収容室５５の溝部５６内に位置されて同一軸心上で回
転することができる。The fixed piece 70 housed in the housing chamber 55 is
Since the chamfered portion 71 is hooked on the inner wall of the accommodation chamber 55, it is fixed without rotating. On the other hand, the rotary shaft 60 has the upper end of the shaft portion 61 axially supported in the hole 72 of the fixed piece 70, and the lower portion of the shaft portion 61 is positioned in the groove portion 56 of the accommodation chamber 55 and can rotate on the same axis. it can.
【００２６】回転軸６０の鍔部６７と固定片７０とを上
方からばね７５で付勢することにより、回転軸６０のラ
チェット歯部６８と固定片７０の受歯部７３とは常に当
接しているので、回転軸６０は傾斜面方向（時計方向）
にばね７５の弾発力に抗して上下動しながら回転し、立
上り方向（反時計方向）には互いの山の立上部が当接す
るため逆回転はできない。By urging the flange portion 67 of the rotary shaft 60 and the fixed piece 70 from above with a spring 75, the ratchet tooth portion 68 of the rotary shaft 60 and the tooth receiving portion 73 of the fixed piece 70 are always in contact with each other. Therefore, the rotating shaft 60 is tilted (clockwise)
In addition, the springs 75 rotate while moving up and down against the elastic force of the springs 75, and the rising portions of the mountains contact each other in the rising direction (counterclockwise direction).
【００２７】次いで、カバー体５０を端子台２０に取付
けるには、予め圧着端子８０を締付ねじ４２で端子金具
２８に接続させると共に壁板部２２の上端両側に設けた
爪受部２３、２３に基板５１の係止爪５２を嵌合させる
だけのワンタッチで簡単に装着できる。なお、係止爪５
２の外側には、取外し機能を有した取外片４９、４９を
設けたあるため、何らかの外力が加わっても直接係止爪
５２に外力が加わることがほとんどないので、該係止爪
が破損する事故を防止できる。Next, in order to attach the cover body 50 to the terminal block 20, the crimp terminals 80 are previously connected to the terminal fittings 28 with the tightening screws 42 and the claw receiving portions 23, 23 provided on both sides of the upper end of the wall plate portion 22. It can be easily installed with one touch by simply fitting the locking claws 52 of the substrate 51 to. The locking claw 5
Since the detachment pieces 49, 49 having a detaching function are provided on the outer side of 2, there is almost no external force directly applied to the locking claw 52 even if some external force is applied, so that the locking claw is damaged. You can prevent accidents.
【００２８】このカバー体５０を端子台の壁板部２２の
上部両側に装着し、ドライバー８３の先端をカバー体５
０の孔部５３から挿入し、ついで、固定片７０の孔７２
に挿入して位置している回転軸の上端に設けた係合溝６
２に合致させる。ついで、ドライバー８３を時計方向に
回転させる。The cover body 50 is attached to both upper sides of the wall plate portion 22 of the terminal block, and the tip of the driver 83 is attached to the cover body 5.
0 through the hole 53 and then the hole 72 of the fixing piece 70.
Engaging groove 6 provided at the upper end of the rotating shaft inserted into the
Match 2 Then, the driver 83 is rotated clockwise.
【００２９】ドライバー８３により回転させられた回転
軸６０は、ばね７５の弾発力に抗して上下動しながら固
定片の受歯部７３を超えて回転すると、該回転軸の下端
に設けた突起部６５が任意個所で締付ねじ４２の係合部
４３と合致する。この係合部４３と突起部６５が合致す
ると、回転軸６０がばね７５の弾発力により押し下げら
れて係合部４３と突起部６５とが周方向に固定する（図
１２）。When the rotating shaft 60 rotated by the driver 83 moves up and down against the elastic force of the spring 75 and exceeds the tooth receiving portion 73 of the fixed piece, the rotating shaft 60 is provided at the lower end of the rotating shaft. The protruding portion 65 matches the engaging portion 43 of the tightening screw 42 at an arbitrary position. When the engaging portion 43 and the protruding portion 65 match, the rotating shaft 60 is pushed down by the elastic force of the spring 75, and the engaging portion 43 and the protruding portion 65 are fixed in the circumferential direction (FIG. 12).
【００３０】締付ねじ４２の係合部４３に回転軸６０の
突起部６５が嵌合すると、締付ねじと回転軸とが一体に
なり、振動や衝撃が外部から加わっても締付ねじが反時
計方向、即ち、締結力が弛む方向に回転しようとしても
常にばね７５に付勢された固定片７０の受歯部７３が回
転軸６０のラチェット歯部６８と噛合しているため弛む
ことはない。When the projection portion 65 of the rotary shaft 60 is fitted into the engaging portion 43 of the tightening screw 42, the tightening screw and the rotary shaft are integrated with each other, and the tightening screw can be secured even if vibration or impact is applied from the outside. Even if an attempt is made to rotate in the counterclockwise direction, that is, in the direction in which the fastening force is loosened, the toothed portion 73 of the fixed piece 70, which is always urged by the spring 75, is engaged with the ratchet toothed portion 68 of the rotary shaft 60, and therefore is not loosened. Absent.
【００３１】締付ねじ４２を弛める場合には、カバー体
５０の一端である取付片４９の部分を上方に持ち上げる
だけで、端子台の壁板部２２の爪受部２３から係止爪５
２が簡単に外れて、カバー体５０を外すことができる。
このように、締付ねじの係合部４３から回転軸の突起部
６５を離脱させれば、締付ねじ４２を露出させることが
でき、ドライバーにより回動させて弛めることが出来
る。When the tightening screw 42 is loosened, only the part of the mounting piece 49, which is one end of the cover body 50, is lifted up, and the locking claw 5 is released from the claw receiving part 23 of the wall plate part 22 of the terminal block.
2 can be easily removed, and the cover body 50 can be removed.
In this way, by removing the protrusion 65 of the rotary shaft from the engaging portion 43 of the tightening screw, the tightening screw 42 can be exposed and can be rotated and loosened by the driver.
【００３２】上記において、カバー体５０を複数の締付
ねじを有する連結端子台に取付ける場合について説明し
たが、一つねじを有した端子台（図示せず）の場合に
は、基板の下面に設けた一つの収容室内に回転軸と固定
片とばねとを収容して形成すればよい。さらに、表示灯
の背面に位置した接続部に取付けてある締付ねじの場
合、それぞれ対角線上に締着ねじが位置しても、収容室
をそれぞれ対角線上に設けたカバー体を取付けることが
できるのは勿論である。The case where the cover body 50 is attached to the connection terminal block having a plurality of tightening screws has been described above. However, in the case of a terminal block having one screw (not shown), the cover body 50 is attached to the lower surface of the substrate. The rotary shaft, the fixed piece, and the spring may be housed and formed in the one housing chamber provided. Further, in the case of the tightening screw attached to the connection portion located on the back surface of the indicator light, even if the fastening screw is located on each diagonal line, the cover body having the accommodation chambers provided on each diagonal line can be attached. Of course.
【００３３】[0033]
【発明の効果】第１の発明は、弛止装置を具えたカバー
体のため、弛止装置を必要とする機器、例えば電磁開閉
器やスイッチや電源用機器等のねじ部分の弛止めと、防
塵を兼ねて安全且つ容易に取付けて使用することができ
る。またカバー体は構成が簡単なため安価に製作でき、
通常の端子台などに後から装着させて弛止め機能を具有
させることができる。即ち、端子金具に取付けた締付ね
じのねじ溝部に、カバー体の収容室内に収容させる固定
片と回転軸とを一方向にのみ回転するようにばねで付勢
させて回転軸の下端に設けた突起部を合致させることに
より前記締付ねじの弛みを防止し、増締め作業を不要に
してメンテナンスコストの軽減化を図って弛みによる不
具合を防止できる。The first aspect of the present invention is a cover body having a loosening device, so that a device requiring the loosening device, for example, a screw portion of an electromagnetic switch, a switch, a power supply device, or the like is loosened. It can also be used safely and easily while also being dustproof. In addition, because the cover body has a simple structure, it can be manufactured inexpensively,
It can be attached to an ordinary terminal block or the like later to have a slack prevention function. That is, in the thread groove portion of the tightening screw attached to the terminal fitting, the fixed piece to be housed in the housing chamber of the cover body and the rotating shaft are urged by the spring so as to rotate in only one direction, and are provided at the lower end of the rotating shaft. It is possible to prevent the tightening screw from being loosened by matching the protruding portions, to reduce the maintenance cost by eliminating the need for additional tightening work, and to prevent problems due to loosening.
【００３４】第２の発明は、前記カバー体を具えた弛止
装置付端子台であり、振動などが生じる場所に設置して
使用する端子台の締付ねじの弛みを防止すると共に、埃
の堆積を防ぐことができ、メンテナンスコストの低減化
を図ると共に弛みによる不具合や火災の発生を防止する
ことができる利点がある。A second aspect of the present invention is a terminal block with a loosening device equipped with the cover body, which prevents loosening of a tightening screw of the terminal block which is installed and used in a place where vibration or the like is generated, and prevents dust from being generated. There is an advantage that the accumulation can be prevented, the maintenance cost can be reduced, and the trouble and the fire due to the loosening can be prevented.
【図１】一部省略した従来の端子台の斜視図である。FIG. 1 is a perspective view of a conventional terminal block with a part omitted.
【図２】従来の端子台の正面図である。FIG. 2 is a front view of a conventional terminal block.
【図３】本発明に係る弛止装置をしめすもので、端子台
から弛止装置付カバー体を取外して分離させた状態の正
面図である。FIG. 3 is a front view of the loosening device according to the present invention, showing a state where the loosening device-equipped cover body is detached from the terminal block and separated.
【図４】カバー体を構成する各部品の一部を省略して分
離させた斜視図である。FIG. 4 is a perspective view in which a part of each component constituting the cover body is omitted and separated.
【図５】基板の断面図である。FIG. 5 is a sectional view of a substrate.
【図６】図５のＡ―Ａ断面図である。6 is a cross-sectional view taken along the line AA of FIG.
【図７】回転軸の平面図である。FIG. 7 is a plan view of a rotating shaft.
【図８】回転軸の側面図である。FIG. 8 is a side view of a rotating shaft.
【図９】固定片の側面図である。FIG. 9 is a side view of a fixing piece.
【図１０】固定片の底面図である。FIG. 10 is a bottom view of the fixing piece.
【図１１】ドライバーを回転軸の係合部に係合して一方
向に回動させ、該回転軸の突起部と締付ねじのねじ溝部
に合致させた状態の一部破断した断面図である。FIG. 11 is a partially cutaway cross-sectional view showing a state in which the driver is engaged with the engaging portion of the rotary shaft and rotated in one direction, and is aligned with the protrusion of the rotary shaft and the thread groove of the tightening screw. is there.
【図１２】端子台にカバー体を装着させた状態の断面図
である。FIG. 12 is a cross-sectional view of a state in which a cover body is attached to the terminal block.
【符号の説明】 ２０ 端子台 ２１ 絶縁部片 ２２ 壁板部 ２３ 爪受部 ２８ 端子金具 ３０ 載置部 ４２ 締付ねじ ４３ ねじ溝部 ４９ 取外片 ５０ カバー体 ５１ 基板 ５２ 係止爪 ５３ 孔 ５５ 収容室 ５６ Ｕ字溝 ６０ 回転軸 ６１ 軸部 ６２ 係合部 ６５ 突起部 ６７ 鍔部 ６８ ラチェット歯部 ７０ 固定片 ７２ 孔 ７３ 受歯部 ７５ ばね[Explanation of symbols] 20 terminal block 21 Insulation piece 22 Wall plate 23 Claw receiver 28 terminal fittings 30 Place 42 Tightening screw 43 Thread groove 49 Removal piece 50 cover body 51 substrate 52 Locking claw 53 holes 55 accommodation room 56 U-shaped groove 60 rotation axis 61 Shaft 62 Engagement part 65 Projection 67 Tsubabe 68 Ratchet teeth 70 fixed piece 72 holes 73 Tooth receiving part 75 spring
Claims (4)
端子金具に接続する締付ねじを有した端子台において、 両端下部にそれぞれ取外片を設け、その内側にそれぞれ
係止爪を有した基板に、１または２以上設けた孔部の下
側に前方を開放させると共に底面に前方からＵ字溝を形
成した収容室を設け、 該収容室内には、一方向にのみ回転する回転軸と、該回
転軸の上面に当接させて回転軸の逆転を防止する固定片
と、前記回転軸および固定片を下方へ付勢させるばねと
を収容してカバー体を形成してなり、 前記端子台の上面に着脱可能に装着したカバー体の孔部
からドライバーを挿入して回転させた回転軸の下端に設
けた突起部を締付ねじのねじ溝部に合致さることを特徴
とする弛止装置付のカバー体。1. A terminal block having a tightening screw for connecting one or more electric wires or crimp terminals to a terminal fitting, wherein detaching pieces are provided at lower portions of both ends, and locking claws are provided inside thereof. The substrate is provided with a storage chamber having a U-shaped groove formed in the bottom surface from the front and having a front opening below the hole provided in one or more holes, and a rotation shaft that rotates only in one direction in the storage chamber. A cover body is formed by accommodating a fixing piece that abuts on an upper surface of the rotating shaft to prevent the rotating shaft from being reversely rotated, and a spring that biases the rotating shaft and the fixing piece downward. A locking device characterized in that a protrusion provided on the lower end of a rotating shaft, which is rotated by inserting a driver through a hole of a cover body detachably mounted on the upper surface of a base, is matched with a thread groove portion of a tightening screw. Attached cover body.
たはマイナス形などの係合部を設け、該軸部の下面には
プラス形またはマイナス形に形成した突起部を設けると
共に、該軸部の略上方に形成したやや大径な鍔部の上面
にラチェット歯部を形成したことを特徴とする前記請求
項１記載の弛止装置付のカバー体。2. The rotating shaft is provided with a plus or minus engaging portion on an upper surface of a shaft portion, and a plus or minus protruding portion is provided on a lower surface of the shaft portion. The cover body with a locking device according to claim 1, wherein a ratchet tooth portion is formed on an upper surface of a flange portion having a slightly larger diameter formed substantially above the shaft portion.
記収容室の内壁面に掛止させて周方向に固定し、中央に
前記回転軸の軸部を軸支する孔を設け、裏面には前記回
転軸のラチェット歯部と噛合する受歯部を設けて一方向
にのみ回転し、逆方向に回転できない構成にしたことを
特徴とする請求項１記載の弛止装置付のカバー体。3. The fixing piece is formed in a rectangular outer shape, is hooked on an inner wall surface of the accommodation chamber and fixed in the circumferential direction, and has a hole for supporting the shaft portion of the rotating shaft in the center. 2. The cover with a locking device according to claim 1, wherein a tooth receiving portion that meshes with the ratchet tooth portion of the rotating shaft is provided on the back surface so that it can rotate only in one direction and cannot rotate in the opposite direction. body.
設けた壁板部の上部両側に、カバー体取付用にそれぞれ
爪受部を設けると共に、該絶縁部材に設けた載置台上に
取付けた端子金具の略両端に、頭部にプラス溝またはマ
イナス溝などのねじ溝を設けた締付ねじを取付け、 両端下部にそれぞれ取外片を設け、その内側にそれぞれ
係止爪を有した基板に、１または２以上設けた孔部の下
側に前方を開放させると共に底面に前方からＵ字溝を形
成した収容室を設け、該収容室内に一方向にのみ回転す
る回転軸と、該回転軸の上面に当接させて回転軸の逆転
を防止する固定片と、前記回転軸および固定片を下方へ
付勢させるばねとを収容してカバー体を形成し、該カバ
ー体の前記係止爪を前記端子台の爪受部に着脱可能に係
合させ、 前記端子台の上面に着脱可能に装着したカバー体の孔部
からドライバーを挿入して回転させた回転軸の下端に設
けた突起部を締付ねじのねじ溝部に合致させて前記締付
ねじの逆回転を防止させることを特徴とする弛止装置付
端子台。4. A claw receiving portion for attaching a cover body is provided on each of both upper sides of a wall plate portion provided on an upper rear surface of an insulating portion constituting a terminal block, and is mounted on a mounting table provided on the insulating member. Tightening screws with screw grooves such as a plus groove or a minus groove on the head were attached to both ends of the attached terminal fittings. The substrate is provided with a storage chamber in which a front side is opened below the hole provided in one or two or more and a U-shaped groove is formed in the bottom face from the front side, and a rotation shaft which rotates only in one direction in the storage chamber, A cover body is formed by accommodating a fixing piece that abuts on the upper surface of the rotating shaft to prevent the rotating shaft from rotating in the reverse direction, and a spring that urges the rotating shaft and the fixing piece downward. Removably engage the stop claw with the claw receiving portion of the terminal block, A screwdriver is inserted through the hole of the cover that is detachably attached to the surface, and the protrusion provided on the lower end of the rotating shaft that is rotated matches the screw groove of the tightening screw to prevent the tightening screw from rotating in reverse. A terminal block with a locking device that is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000356468A JP3420207B2 (en) | 2000-11-22 | 2000-11-22 | Cover body with release device and terminal block with release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000356468A JP3420207B2 (en) | 2000-11-22 | 2000-11-22 | Cover body with release device and terminal block with release device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002164097A JP2002164097A (en) | 2002-06-07 |
| JP3420207B2 true JP3420207B2 (en) | 2003-06-23 |
Family
ID=18828714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000356468A Expired - Fee Related JP3420207B2 (en) | 2000-11-22 | 2000-11-22 | Cover body with release device and terminal block with release device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3420207B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100642733B1 (en) | 2005-02-16 | 2006-11-03 | 서일전자 주식회사 | a terminal block fixing structure |
| JP2007128795A (en) * | 2005-11-07 | 2007-05-24 | Fuji Electric Fa Components & Systems Co Ltd | Relay terminal device for circuit breaker |
| JP2014213652A (en) * | 2013-04-23 | 2014-11-17 | 株式会社東海理化電機製作所 | Vehicle mirror device |
-
2000
- 2000-11-22 JP JP2000356468A patent/JP3420207B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002164097A (en) | 2002-06-07 |
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