JP4527577B2 - Terminal block and transformer equipped with this terminal block - Google Patents

Terminal block and transformer equipped with this terminal block Download PDF

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JP4527577B2
JP4527577B2 JP2005086237A JP2005086237A JP4527577B2 JP 4527577 B2 JP4527577 B2 JP 4527577B2 JP 2005086237 A JP2005086237 A JP 2005086237A JP 2005086237 A JP2005086237 A JP 2005086237A JP 4527577 B2 JP4527577 B2 JP 4527577B2
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screw
terminal block
seat surface
winding portion
tension spring
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JP2006269267A (en
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実 河原
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スワロー電機株式会社
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Description

本願発明は、端子台及びこの端子台を備えたトランスに関する。   The present invention relates to a terminal block and a transformer including the terminal block.

電気接続線の端子を固定する端子台において、端子台が備える電気導通板に、電気接続線を固定するネジの装着を容易とするため、例えば特許文献1に見られる電気接続具が提案されている。   In the terminal block for fixing the terminal of the electric connection line, for example, an electric connection tool found in Patent Document 1 has been proposed in order to facilitate mounting of a screw for fixing the electric connection line on the electric conduction plate provided in the terminal block. Yes.

特公平7−60706号公報Japanese Patent Publication No. 7-60706

この電気接続具は、正面に線挿入用開口部と上面に操作用開口部とを有するケーシングと、ケーシング内に設けられた電気導通板と、座面を備え且つ上端にねじ回しを嵌合することが可能な頭部を備えたネジ(ビス)と、線材にて形成された引張コイルバネ(ばね部材)とを備える。上記の電気導通板は、上下に貫通するネジ穴を備え、上記の引張コイルバネは、ケーシング内にて上記の操作用開口部から電気導通板の上方にネジを吊下げるものであり、上記の線挿入開口部より電気導通板の上に電気接続線の端部を挿入し、操作用開口部からねじ回しの先端をケーシング内に挿入してネジを押し下げて電気導通板のネジ穴へネジを螺合することにより、電気接続線を電気導通板に接続することができる。 This electrical connector includes a casing having a line insertion opening on the front surface and an operation opening on the upper surface, an electric conduction plate provided in the casing, a seating surface, and a screwdriver at the upper end. A screw (screw) provided with a head that can be used, and a tension coil spring (spring member) formed of a wire. The electrical conduction plate includes a screw hole penetrating vertically, and the tension coil spring suspends a screw from the operation opening above the electrical conduction plate in the casing. insert the end of the electrical connections from the insertion opening on the electric conductive plate, the tip of the screwdriver from the operation opening by pushing down the screw is inserted into the casing to the screw hole of the electric conduction plate screws The electrical connection line can be connected to the electrical conduction plate by screwing.

上記の特許文献1に示された電気接続具が提案される以前は、電気導通板のネジ穴に螺合することにより電機接続線を電気導通板に固定する上記のネジは、ケーシングと別々にされており、端子の接続に際して、一々、指先で、電機導通板の上に電気接続線を乗せた状態にして、ねじ回しにより、電気導通板のネジ穴へ螺合しなければらなかった。即ち、端子の接続に際して、夫々別体の、電機導通板が設けられたケーシングと、電気接続線と、ネジとを、上記のネジ締めによって一体とする手間を取らなければならなかった。この作業は、小さなネジを所定の向きにしてネジ穴に螺合する際に、手元が狂って、ネジを落っことし、作業を幾度となくやり直す面倒を強いられるものであった。
上記の特許文献1に示された電気接続具は、このような点を改良すべく提案されたものであり、このものにあっては、ネジを、ケーシング内において、予め引張コイルにて電気導通板の上方に固定して吊下げておき、端子の接続に際して、ネジ回しにより上方から下方に向けてねじ回しを押し込むことにて、簡単にネジを電気導通板のネジ穴のある位置に合わせることができ、そのままねじ回しによりネジを旋回して上記のネジ穴へ螺合することができる。このように、この特許文献1に示された電気接続具は、ネジを指先で触れる必要なく、ねじ回しの操作だけで、ネジを電気導通板のネジ穴に装着でき、便利なものとされた。
Before the electrical connector shown in Patent Document 1 is proposed, the screw for fixing the electrical connection line to the electrical conduction plate by screwing into the screw hole of the electrical conduction plate is separated from the casing. Therefore, when connecting the terminals, it was necessary to place the electrical connection line on the electrical conduction plate with a fingertip and to screw into the screw hole of the electrical conduction plate by screwing. That is, when connecting the terminals, it is necessary to take time and effort to integrate the casing, the electrical connection line, and the screw, which are separately provided, with the electric conduction plate, by the above-described screw tightening. In this operation, when a small screw is screwed into a screw hole in a predetermined direction, a hand is out of order, the screw is dropped, and the work is forced to be repeated over and over again.
The electrical connector disclosed in the above-mentioned Patent Document 1 has been proposed in order to improve such a point, and in this case, the screw is electrically connected to the casing in advance by a tension coil. It is fixed to the upper part of the board and hung, and when connecting the terminals, the screwdriver is pushed from the upper side to the lower side by screwing, so that the screw can be easily aligned with the screw holes on the electrical conduction plate. The screw can be turned and screwed into the screw hole as it is. As described above, the electrical connector shown in Patent Document 1 is convenient because the screw can be attached to the screw hole of the electrical conduction plate only by screwing operation without having to touch the screw with a fingertip. .

しかし、一度、ネジ穴にネジを螺合すると、引張コイルバネはネジから外れて、当該引張コイルバネのみがケーシング内に吊下げられた状態となる。このため、一度の接続に使用する場合には、便利であるが、再利用するに際しては、再び引張コイルバネにネジを取り付ける手間を取らねばならなかった。
このように、接続後、引張コイルバネからネジが外れてしまう要因について、引張コイルバネは、上記のネジの円盤状或いは半球状に形成された頭部の座面に下端部分が引っ掛けられてネジを保持するのであるが、線材をつる巻状に形成された引張コイルは、(上記の通り吊下げた状態で)平面視において、線材の各部が円形の輪郭を有し、円形の頭部に引っ掛けても、力が加わることによって、頭部を簡単にすり抜けてネジを脱落させてしまうと考えられる。即ち、平面視円径の線材は、同じく平面視円形のネジ頭部から容易に外れるものとなっているのである。
However, once the screw is screwed into the screw hole, the tension coil spring is detached from the screw, and only the tension coil spring is suspended in the casing. For this reason, it is convenient when used for a single connection, but when reusing it, it has been necessary to take the trouble of attaching a screw to the tension coil spring again.
As described above, regarding the factors that cause the screw to come off from the tension coil spring after connection, the tension coil spring holds the screw by hooking the lower end portion of the head surface formed in the disk shape or hemisphere of the above screw. However, the tension coil formed in a winding shape that hangs the wire rod has a circular outline in a plan view (in the state suspended as described above), and is hooked on the circular head. However, it is thought that by applying force, the head easily slips through and drops the screw. That is, the wire having a circular diameter in plan view can be easily detached from the screw head having a circular shape in plan view.

このような点について、線材が呈する円の径を小さくすれば、ネジの頭部が円形であっても当該頭部から脱落し難くなるのであるが、製造時、引張コイルバネにネジを取り付ける際に、線材の弾力性を利用して、引張コイルバネの下端の径を押し広げて、ネジ頭部を通過させるという取り付け作業を、極めて行い難いものとしてしまう。
また、ネジには、電気導通板と共に電気接続線を挟む座金が装着されており、通常、この座金はネジの軸部のネジ山に係合しているが、ネジに対して回しても旋回するのみでネジ軸の先端(下端)側へ移動しないものが用いられる。これは、当該座金をネジから脱落させないためである。
このため、座金を外して、ネジの頭部と反対側即ちネジの軸側から、ネジに引張コイルバネを嵌めるということはできず、上記の通り、線材が呈する上記円の径をネジの頭部(座面)の径より小さくした場合、ネジに引張コイルバネを装着する術がない。
About such a point, if the diameter of the circle presented by the wire is reduced, it will be difficult to drop off the head even if the head of the screw is circular, but at the time of manufacturing, when attaching the screw to the tension coil spring Using the elasticity of the wire rod, the attachment work of pushing the diameter of the lower end of the tension coil spring and passing it through the screw head is extremely difficult.
In addition, the screw is fitted with a washer that sandwiches the electrical connection line together with the electrical conduction plate. Normally, this washer is engaged with the thread of the shaft portion of the screw, but it can be turned even if it is rotated with respect to the screw. What does not move to the tip (lower end) side of the screw shaft is used. This is to prevent the washer from falling off the screw.
For this reason, it is impossible to remove the washer and fit the tension coil spring to the screw from the side opposite to the screw head, that is, the screw shaft side. When the diameter is smaller than the (seat surface) diameter, there is no way to attach a tension coil spring to the screw.

本願発明は、引張バネにてネジが吊着された端子台において、引張バネ(引張コイルバネ)の形状を工夫することにより、引張バネからネジが外れ難いものととして、上記課題の解決を図るものである。   The present invention aims to solve the above-mentioned problem by devising the shape of the tension spring (tensile coil spring) in the terminal block in which the screw is suspended by the tension spring so that the screw is difficult to be removed from the tension spring. It is.

そこで、本願第1の発明は、正面に線挿入用開口部21と上面に操作用開口部22とを有するケーシング2と、ケーシング2内に設けられた電気導通板3と、軸部40とねじ回しを嵌合することが可能な頭部41とを有するネジ4と、線材を巻いた状態とすることにて形成された引張バネ5とを備え、上記のネジ4について上記頭部41又は座金の装着にて座面を形成するものであり、上記の電気導通板3は、上下に貫通するネジ穴31を備え、上記の引張バネ5は、ケーシング2内にて電気導通板3の上方にネジ4を吊下げるものであり、上記の線挿入開口部21より電気導通板3の上に電気接続線の端部を挿入し、操作用開口部22からねじ回しの先端をケーシング2内に挿入してネジ4を押し下げて電気導通板のネジ穴31へネジ4を螺合することにより、電気接続線を電気導通板3に接続することが可能な端子台1について、次の構成を採るものを提供する。
即ち上記の引張バネ5は、引張バネ5をケーシング内へ固定する固定用巻き部51と、ネジ4の座面と当接してネジ4を保持する保持用巻き部53と、固定用巻き部51と保持用巻き部53との間に介された伸縮巻き部52とを備える。
上記保持用巻き部53は、ネジ4の座面の径よりも大きな径と、ネジ4の座面の径よりも小さな径とを備え、保持用巻き部53の上記何れの径の部分も、ネジ4の軸部40を通すことが可能なものである。
上記の保持用巻き部53の径とは、保持用巻き部53の中心を通る直線(仮想線)の長さをいう。
Therefore, the first invention of the present application is the casing 2 having the line insertion opening 21 on the front surface and the operation opening 22 on the upper surface, the electric conduction plate 3 provided in the casing 2, the shaft portion 40, and the screw. A screw 4 having a head 41 that can be fitted with a rotation; and a tension spring 5 formed by winding the wire. The head 41 or a washer for the screw 4 The electric conduction plate 3 includes a screw hole 31 penetrating vertically, and the tension spring 5 is located above the electric conduction plate 3 in the casing 2. The screw 4 is suspended, and the end of the electrical connection line is inserted on the electrical conduction plate 3 from the opening 21 for wire insertion, and the tip of the screwdriver is inserted into the casing 2 from the opening 22 for operation. Insert the screw 4 and push it down into the screw hole 31 of the electrical conduction plate. By screwing, for the terminal block 1 capable of connecting the electrical connections to the electrical conductive plate 3, provide what adopting the following configuration.
That is, the tension spring 5 includes a fixing winding portion 51 that fixes the tension spring 5 into the casing, a holding winding portion 53 that contacts the seat surface of the screw 4 and holds the screw 4, and a fixing winding portion 51. And a telescopic winding portion 52 interposed between the holding winding portion 53 and the holding winding portion 53.
The holding winding portion 53 has a diameter larger than the diameter of the seating surface of the screw 4 and a diameter smaller than the diameter of the seating surface of the screw 4. The shaft portion 40 of the screw 4 can be passed therethrough.
The diameter of the holding winding portion 53 refers to the length of a straight line (imaginary line) passing through the center of the holding winding portion 53.

本願第2の発明は、上記本願第1の発明にあって、次の端子台を提供する。
即ち、上記のネジ4の座面42の輪郭は、円形であり、上記の引張バネ5を形成する線材は、少なくとも保持用巻き部53において、多角形状に巻かれた状態に形成されたものである。上記の保持用巻き部53は、上記線材の弾性を利用して押し広げることによってネジ4の頭部41側から当該頭部41を超えて座面側に配置することができ、上記ネジ4の座面より小さな径の部分が、座面と当接して、保持用巻き部53からネジ4が脱落するのを防止するものである。
上記の多角形とは、その角が完全に尖ったものに限定するものではなく、角が丸くなっていても、全体の輪郭が円と区別できるものであれば、これを含む。
A second invention of the present application is the first invention of the present application, and provides the following terminal block.
That is, the outline of the seat surface 42 of the screw 4 is circular, and the wire forming the tension spring 5 is formed in a state of being wound in a polygonal shape at least in the holding winding portion 53. is there. The holding winding portion 53 can be arranged on the seat surface side from the head 41 side of the screw 4 beyond the head 41 side by pushing and spreading using the elasticity of the wire. A portion having a smaller diameter than the seating surface is in contact with the seating surface to prevent the screw 4 from falling off the holding winding portion 53.
The above-mentioned polygon is not limited to those whose corners are perfectly pointed, and includes those whose entire contour can be distinguished from a circle even when the corners are rounded.

本願第3の発明では、本願第2の発明にあって、保持用巻き部53が呈する上記の多角形が長方形である端子台を提供する。   According to a third invention of the present application, there is provided a terminal block according to the second invention of the present application, wherein the polygon presented by the holding winding portion 53 is a rectangle.

本願第4の発明は、本願第1の発明にあって、次の構成を備えた端子台を提供する。
即ち、上記のネジ4の座面の輪郭は、円形である。上記の引張バネ5を形成する線材は、少なくとも保持用巻き部53において、長円状に巻かれた状態に形成されたものである。上記の保持用巻き部53は、上記線材の弾性を利用して押し広げることによってネジ4の頭部41側から当該頭部41を超えて座面側に配置することができ、上記ネジ4の座面より径の小さな部分が、座面と当接して、保持用巻き部53からネジが脱落するのを防止する。
A fourth invention of the present application is the first invention of the present application, and provides a terminal block having the following configuration.
That is, the contour of the seat surface of the screw 4 is circular. The wire that forms the tension spring 5 is formed in a state of being wound in an oval shape at least in the holding winding portion 53. The holding winding portion 53 can be arranged on the seat surface side from the head 41 side of the screw 4 beyond the head 41 side by pushing and spreading using the elasticity of the wire. A portion having a smaller diameter than the seat surface comes into contact with the seat surface to prevent the screw from dropping from the holding winding portion 53.

本願第5の発明は、本願第1乃至4の何れかの発明にあって、次の構成を備えた端子台を提供する。
即ち、上記のネジ4には、ネジ4の上記軸部に装着され且つ電気導通板3と共に電気接続線を挟む押圧部材6が設けられ、上記のネジ4には、押圧部材6の上記座面への接近を制限する副座面が設けられたことを特徴とする。
A fifth invention of this application is the invention according to any one of the first to fourth applications of this application, and provides a terminal block having the following configuration.
That is, the screw 4 is provided with a pressing member 6 that is attached to the shaft portion of the screw 4 and sandwiches the electric connection line together with the electric conduction plate 3. The screw 4 has the seating surface of the pressing member 6. A sub-seat surface that restricts access to is provided.

本願第6の発明は、上記本願第1乃至第5の何れかの発明に係る端子台1を備えたトランスを提供する。   A sixth invention of the present application provides a transformer including the terminal block 1 according to any one of the first to fifth inventions of the present application.

本願第1〜6の発明によって、端子台において、引張バネの保持用巻き部に、ネジの座面の径よりも径の大きな部分と、ネジの座面の径よりも径の小さな部分とを設けることにより、当該径の小さな部分が、ネジの座面と当接して、より確実にネジを保持し、引張バネからネジが脱落するのを抑制した。
また、上記の径の大きな部分を形成することにより、製造時に、引張バネに上記ネジを装着するに際して、ネジの頭部側から、ネジの座面に当該径の大きな部分を引っ掛けて、引張バネをネジの頭部へ押し込むことにより、保持用巻き部の上記径の小さな部分の径を押し広げて、ネジ頭部を乗り越えさせることができる。従って、上記の通り、一旦装着したネジが外れ難いにくいにも拘わらず、その装着は、極めて簡単に行うことができる。これによって、接続した電気接続線をネジを緩めて外した後、当該端子台を再利用するとき、ネジは、引張バネに付いた状態を確保することができる。即ち、端子台を再利用する場合においても、ネジを引張バネに装着し直す手間が不要であり、初めて端子台を使用とするときと同様、ねじ回しを操作用開口部より挿入して旋回するのみで、ネジ電気導通板のネジ穴へ螺合することができる。
また、上記の通り、引張バネの形状を工夫することにより、引張バネからネジが外れるのを防止するので、部品点数を増やす必要がなく、製造面において有利である。
上記の本願第2〜4の発明では、保持用巻き部について、上記の、ネジの座面より径の大きな部分と、ネジの座面より径の小さな部分を形成するより具体的な手段を提供し得た。
また、本願第5の発明では、押圧部材によって、電気接続線を、電気導通板に強固に固定できると共に、副座面の形成によって、ネジを締め付けた際に、当該押圧部材とネジ等部の座面とに引張バネの保持用巻き部が挟まれて変形して、引張バネの保持用巻き部がネジの座面から外れるといった事態を抑制した。
本願第6の発明では、トランスにおいて、上記の効果を得た。
According to the first to sixth inventions of the present application, in the terminal block, the holding winding portion of the tension spring is provided with a portion having a diameter larger than the diameter of the screw seat surface and a portion having a diameter smaller than the diameter of the screw seat surface. By providing, the small diameter part contact | abutted with the seat surface of the screw, it hold | maintained the screw more reliably, and it suppressed that the screw fell off from the tension spring.
Further, by forming the large-diameter portion, when the screw is attached to the tension spring at the time of manufacturing, the large-diameter portion is hooked on the seat surface of the screw from the screw head side. Is pushed into the head portion of the screw, the diameter of the small diameter portion of the holding winding portion can be expanded and the screw head can be overcome. Therefore, as described above, although it is difficult to remove the screw once mounted, the mounting can be performed very easily. As a result, when the terminal block is reused after the connected electrical connection line is loosened and removed, the screw can be secured to the tension spring. That is, even when the terminal block is reused, there is no need to reattach the screw to the tension spring, and as with the first use of the terminal block, the screwdriver is inserted through the operation opening and swiveled. only, it can be screwed a screw into the screw hole of the electrical conductive plate.
Further, as described above, by devising the shape of the tension spring, it is possible to prevent the screw from being removed from the tension spring, so that it is not necessary to increase the number of parts, which is advantageous in terms of manufacturing.
In the second to fourth inventions of the present application, the holding winding portion is provided with more specific means for forming the above-mentioned portion having a diameter larger than the screw seat surface and a portion having a diameter smaller than the screw seat surface. It was possible.
Further, in the fifth invention of the present application, the electrical connection line can be firmly fixed to the electrical conduction plate by the pressing member, and when the screw is tightened by forming the sub-seat surface, The holding spring of the tension spring was sandwiched between the seating surface and deformed, and the situation where the holding winding of the tension spring was detached from the seating surface of the screw was suppressed.
In the sixth invention of the present application, the above effect is obtained in the transformer.

以下、図面を参照しつつ、本願発明の好ましい実施の形態について、説明する。図1〜図8へ本願発明の一実施の形態に係るトランスを示す。
図1(A)はこのトランスの全体正面図であり、図1(B)はこのトランスの全体側面図であり、図1(C)はこのトランスの全体平面図である。図2(A)及び(B)は、このトランスに用いられる端子台のケーシングの要部斜視図である。図3(A)は上記端子台のケーシングの上記と他の部位を示す要部側面図であり、図3(B)その底面図であり、図3(C)はその平面図であり、図3(D)はその背面図であり、図3(E)はその正面図である。図4(A)は上記の端子台に用いられるネジの正面図であり、図4(B)は当該ネジに座金が装着された状態を示す正面図である。図5(A)は上記端子台に用いられる引張バネの斜視図であり、図5(B)はその平面図であり、図5(C)は当該バネとネジとの関係を示す説明図である。図6(A)は図5に示す引張バネを図4(B)へ示すネジへ装着した状態を示す斜視図であり、図6(B)は図6(A)に示すネジを図2(A)へ示すケーシングの要部へ装着した状態を示す斜視図である。図7は図6(A)へ示すネジを装着した状態を示す端子台の縦断面図であり、図8はその使用状態を示す縦断面図である。
説明の便宜上、各図中、Uは上方を、Sは下方を、Lは左側を、Rは右側を、Fは前方を、Bは後方を、夫々示している。
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. 1 to 8 show a transformer according to an embodiment of the present invention.
1A is an overall front view of the transformer, FIG. 1B is an overall side view of the transformer, and FIG. 1C is an overall plan view of the transformer. FIGS. 2A and 2B are perspective views of the main part of the casing of the terminal block used in this transformer. FIG. 3A is a side view of the main part showing the above and other parts of the casing of the terminal block, FIG. 3B is a bottom view thereof, and FIG. 3C is a plan view thereof. 3 (D) is a rear view thereof, and FIG. 3 (E) is a front view thereof. FIG. 4A is a front view of a screw used in the terminal block, and FIG. 4B is a front view showing a state where a washer is attached to the screw. FIG. 5A is a perspective view of a tension spring used in the terminal block, FIG. 5B is a plan view thereof, and FIG. 5C is an explanatory diagram showing the relationship between the spring and screws. is there. 6A is a perspective view illustrating a state in which the tension spring illustrated in FIG. 5 is attached to the screw illustrated in FIG. 4B, and FIG. 6B illustrates the screw illustrated in FIG. It is a perspective view which shows the state with which the principal part of the casing shown to A) was mounted | worn. FIG. 7 is a longitudinal sectional view of the terminal block showing a state where the screw shown in FIG. 6 (A) is mounted, and FIG. 8 is a longitudinal sectional view showing the usage state.
For convenience of explanation, in each figure, U indicates the upper side, S indicates the lower side, L indicates the left side, R indicates the right side, F indicates the front side, and B indicates the rear side.

図1に示す通り、このトランスは、トランス本体100と、トランス本体100に取り付けられる端子台1とを備える。
以下、各部の構成について、詳しく説明する。
As shown in FIG. 1, the transformer includes a transformer main body 100 and a terminal block 1 attached to the transformer main body 100.
Hereinafter, the configuration of each unit will be described in detail.

図1(A)〜(C)へ示す通り、上記のトランス本体100は、中空部分を備えたボビン101と、ボビン101の外側に巻かれたコイル102と、ボビン101の中空部分少なくとも内側へ束ねて配された鉄心103と、鉄心固定具104…104と、端子台固定部105,105とを備える。
上記の鉄心固定具104…104は、図1(A)へ示す通り、束ねられた鉄心103(の夫々が同一位置に備える貫通孔)へ通された長ネジと、長ネジと螺合する袋ネジ(一端が開口する軸内部に雌ネジ部が形成されている)とを備える。袋ネジは、長ネジの座面と共にその座面にて鉄心103の束を挟む。
上記の鉄心固定具104は、この実施の形態において、図1(A)へ示す通り、鉄心103に対して、上部の2箇所と、下部の2箇所の、合計4箇所(図1(A)に示すように、正面視した状態において、鉄心の四隅)に取り付けられている。
端子台固定部105は、束ねられた鉄心103の表面において、上記の上部の鉄心固定具104,104間へ水平に渡された、レールである。上記の通り、端子台固定部105の両端は、束ねられた鉄心103と共に鉄心固定具104,104にて当該鉄心103の表面に固定されている。当該鉄心固定具104,104間において、端子台固定部105は、(その長手方向と交差する方向にて切った)断面の形状をL字形とする部分を備える。
上記の端子台1…1は、この端子台固定部105に通されることによって、トランス本体100へ固定される。
上記のトランス本体100として、実開平05−069927号や特開2002−313655号の公報に示すものを採用することができる。
As shown in FIGS. 1A to 1C, the transformer body 100 includes a bobbin 101 having a hollow portion, a coil 102 wound around the outside of the bobbin 101, and at least the inside of the hollow portion of the bobbin 101. A bundle of iron cores 103, iron core fixtures 104 ... 104, and terminal block fixing parts 105, 105 are provided.
As shown in FIG. 1A, the iron core fixtures 104... 104 are a long screw passed through a bundled iron core 103 (through holes provided at the same position) and a bag screwed into the long screw. And a screw (in which a female screw portion is formed inside the shaft having one end opened). The cap screw sandwiches the bundle of iron cores 103 along with the seat surface of the long screw.
As shown in FIG. 1A, the above-described iron core fixture 104 has a total of four locations (two in the upper part and two in the lower part with respect to the iron core 103 (FIG. 1A). As shown in Fig. 4, the iron core is attached to the four corners of the iron core when viewed from the front.
The terminal block fixing portion 105 is a rail that is horizontally passed between the upper iron core fixtures 104 and 104 on the surface of the bundled iron core 103. As described above, both ends of the terminal block fixing portion 105 are fixed to the surface of the iron core 103 by the iron core fixtures 104 and 104 together with the bundled iron core 103. Between the iron core fixtures 104, 104, the terminal block fixing portion 105 includes a portion having an L-shaped cross section (cut in a direction intersecting the longitudinal direction).
The terminal blocks 1... 1 are fixed to the transformer body 100 by passing through the terminal block fixing portion 105.
As the transformer main body 100 , those disclosed in Japanese Utility Model Laid-Open Nos. 05-069927 and 2002-313655 can be employed.

上記の端子台1は、図7へ示す通り、ケーシング2と、電気導通板3と、ネジ4と、引張バネ5とを備える。ここでは、図1(C)において、トランス本体100の前方F側に配置された端子台1を例に採って説明する。
上記のケーシング2は、樹脂にて形成された中空の筐体である。このケーシング2は、図2(A)へ示す通り側板部aと、図3(A)〜(E)へ示す中央部bとを備える。中央部bは、図3(A)〜(E)へ示す通り、水平部b2と、水平部b2前方より下方に伸びる正面部b1とを備える。この正面部b1には、正面部b1の前後に貫通する線挿入用開口部21が設けられている。線挿入用開口部21は、接続線を通すことが可能な大きさ(断面積)を有する。また、上記の水平部b2には、上下に貫通する操作用開口部22が設けられている。操作用開口部22は、ドライバの先端(シャフト)を通すことが可能な内径(断面積)を有する。
また、中央部bには、上記の側板部aへ取り付けるための突起b3…b3が設けられている。
As shown in FIG. 7, the terminal block 1 includes a casing 2, an electrical conduction plate 3, a screw 4, and a tension spring 5. Here, in FIG. 1C, the terminal block 1 arranged on the front F side of the transformer main body 100 will be described as an example.
The casing 2 is a hollow casing made of resin. The casing 2 includes a side plate portion a as shown in FIG. 2 (A) and a central portion b shown in FIGS. 3 (A) to 3 (E). The center part b is provided with the horizontal part b2 and the front part b1 extended below from the front of the horizontal part b2, as shown to FIG. The front part b1 is provided with a line insertion opening 21 penetrating before and after the front part b1. The line insertion opening 21 has a size (cross-sectional area) through which the connection line can pass. The horizontal portion b2 is provided with an operation opening 22 penetrating vertically. The opening 22 for operation has an internal diameter (cross-sectional area) which can let the front-end | tip (shaft) of a driver pass.
Further, the central portion b is provided with protrusions b3... B3 for attaching to the side plate portion a.

図2(A)へ示す通り、上記の側板部aは縦に配される板状体であり、側面には、電気導通板3を支持する第1支持部a1と、引張バネ5を支持する第2支持部a2と、上記トランス本体100の端子台固定部105を通すことが可能なL字貫通孔a3が設けられている。
上記の第1支持部a1は、側板部aより側方(側板部aが中央部bの左側に位置するものである場合右側、逆の場合左側)へ水平に突出する突出部a10と、突出部a10の上部に設けられた凹部a11とを備える。
上記の第2支持部a2は、図2(A)へ示す通り、第1支持部a1の上方に設けられ、側板部aより第1支持部a1と同じ側方へ水平に突出する2つの支持突設部a20,a20を備える。この2つの支持突設部a20,a20は、間隔を開けて、前後に対向して配設されたものであり、夫々対向する面に、溝a21,a21を備える。溝a21,a21は、左右に真っ直ぐ伸びる。
As shown to FIG. 2 (A), said side plate part a is a plate-like body distribute | arranged vertically, and supports the 1st support part a1 which supports the electrical conduction board 3, and the tension | pulling spring 5 on a side surface. An L-shaped through hole a3 through which the second support part a2 and the terminal block fixing part 105 of the transformer main body 100 can pass is provided.
The first support portion a1 has a protrusion a10 that protrudes horizontally from the side plate portion a to the side (the right side when the side plate portion a is located on the left side of the central portion b, and the left side in the opposite case), And a recess a11 provided in the upper part of the part a10.
As shown in FIG. 2 (A), the second support part a2 is provided above the first support part a1, and has two supports protruding horizontally from the side plate part a to the same side as the first support part a1. Projecting portions a20, a20 are provided. The two support projecting portions a20, a20 are disposed facing each other at an interval and are provided with grooves a21, a21 on the opposed surfaces. The grooves a21 and a21 extend straight from side to side.

この実施の形態において、端子台1の夫々は、左右の一方(図1(A)示したものは左側)のみに、側板部aを備えるものであるが、図1へ示す通り、端子台1…1を端子台固定部105へ当該端子台固定部105の長手方向に沿って配列することにより、夫々隣の端子台1の側板部aにて区画されるので、隣接する端子台1,1間の絶縁については問題ない。このため、図2(B)へ示す通り、側板部aの第1及び第2支持部a1,a2が設けられたのと反対側の側面には、隣接する端子台1の側板部aの第1及び第2支持部a1,a2の先端を受容する第1及び第2受容部a4,a5が設けられている。
この実施の形態と異なり、個々の端子台1は、中央部bの左右両側に側板部a,aを備えるものとしても実施可能である。一方、図1へ示す実施の形態において、配列された端子台1…1の列の一方の端に位置する端子台1については、側板部aが片方だけ(例えば左側だけ)では、内部が露出することになるので、当該端子台1bについて、図1(C)へ示す通り、別途の側板部d(上記の左側の側板部aに対して右側用)を用意する。尚、側板部a,dは、図示したものと左右反対であっても実施可能である。
また、側板部aには、中央部bが備える上記突起b3…b3を受容する受容部a6…a6が設けられている。中央bの上記突起b3…b3を側板部aの受容部a6…a6へ挿入することによって、側板部aへ中央部bを取り付けることができる。
In this embodiment, each of the terminal blocks 1 is provided with the side plate portion a on only one of the left and right sides (the one shown in FIG. 1A is the left side), but as shown in FIG. ... 1 are arranged on the terminal block fixing portion 105 along the longitudinal direction of the terminal block fixing portion 105, so that they are partitioned by the side plate portions a of the adjacent terminal blocks 1, so that the adjacent terminal blocks 1, 1 There is no problem with the insulation between them. For this reason, as shown to FIG. 2 (B), the 1st and 2nd support part a1, a2 of the side plate part a is provided in the side surface on the opposite side to the 1st of the side plate part a of the terminal block 1 adjacent. First and second receiving portions a4 and a5 for receiving the tips of the first and second support portions a1 and a2 are provided.
Unlike this embodiment, each terminal block 1 can also be implemented as having side plate portions a and a on both the left and right sides of the central portion b. On the other hand, in the embodiment shown in FIG. 1, with respect to the terminal block 1 positioned at one end of the array of the terminal blocks 1... 1 arranged, if the side plate portion a is only one side (for example, only the left side), the inside is exposed. Therefore, as shown in FIG. 1C, a separate side plate portion d (for the right side with respect to the left side plate portion a) is prepared for the terminal block 1b. The side plate portions a and d can be implemented even if they are opposite to the illustrated one.
Further, the side plate portion a is provided with receiving portions a6... A6 for receiving the projections b3... B3 provided in the central portion b. The central portion b can be attached to the side plate portion a by inserting the protrusions b3... B3 of the central portion b into the receiving portions a6.

上記の電気導通板3は、上下に貫通するネジ穴31を備える金属板である。
図6(B)及び図7へ示す通り、端子台1の上記第1支持部a1に、この電気導通板3が取り付けられる。具体的には、電気導通板3は、第1支持部a1の突出部a10の上に乗せられ、その左右端が上記凹部a11及び第1受容部a4へ挿入されることによって、第1支持部a1へ取り付けられる。
また、上記のネジ4を保持する引張バネ5(図6(A))が、上記第2支持部aに取り付けられる。
図7へ示す通り、第2支持部a2(支持突設部a20,a20の間)は、上記の操作用開口部22の真下に位置する。また、第1支持部a1は、第2支持部a2の下方にあり、電気導通板3の上記ネジ穴31を操作用開口部22の真下に(操作用開口部22と同心に)配置させる。
The electrical conduction plate 3 is a metal plate provided with screw holes 31 penetrating vertically.
As shown in FIGS. 6B and 7, the electrical conduction plate 3 is attached to the first support part a <b> 1 of the terminal block 1. Specifically, the electric conduction plate 3 is placed on the protruding portion a10 of the first support portion a1, and the left and right ends thereof are inserted into the concave portion a11 and the first receiving portion a4, whereby the first support portion. It is attached to a1.
The tensile spring 5 for holding the screw 4 in the (FIG. 6 (A)) is attached to the second support part a 2.
As shown in FIG. 7, the second support part a <b> 2 (between the support projecting parts a <b> 20 and a <b> 20) is located directly below the operation opening 22. The first support part a1 is located below the second support part a2, and the screw hole 31 of the electrical conduction plate 3 is arranged directly below the operation opening 22 (concentrically with the operation opening 22).

以下、このネジ4と、このネジ4を吊下げる引張バネ5とについて、詳述する。
図4(A)へ示す通り、ネジ4は、雄ねじを備える軸部40と、座面42を有し且つ上端にねじ回しを嵌合することが可能な嵌合部を有する頭部41とを備える。頭部41は、平面視円形の輪郭を有する。即ち、その座面42(平面視した頭部41)の輪郭は円形である。図4()へ示す通り、軸部40の上端に上記の頭部41が設けられており、軸部40には、頭部41の上記座面42と別に副座面43が形成されている。
更にネジ4の上記軸部40には、押圧部材6が設けられる。図4(B)へ示す通り、この押圧部材6は、上下に貫通しネジ4の軸部40を通すことが可能な孔60を備えた、座金である。この押圧部材6の孔60の内径よりも上記副座面43の外径のほうが大きい。上記の副座面43は、下方から力を受けて押し上げられた上記押圧部材6が、ネジの頭部42(の座面42)に近づきすぎないように設けられた当接部である。また、押圧部材6の下方への移動について、押圧部材6は、軸部40のネジ山に係合するが、従来周知の方法により軸部40に対して周回させてもネジのピッチに従って下方に自由に移動せず空回りするように形成しておく。これにて、押圧部材6は、軸部40の下方へ脱落しない。
Hereinafter, the screw 4 and the tension spring 5 that suspends the screw 4 will be described in detail.
As shown to FIG. 4 (A), the screw 4 has the axial part 40 provided with an external thread, and the head 41 which has a seating surface 42 and has a fitting part which can fit a screwdriver in an upper end. Prepare. The head 41 has a circular outline in plan view. That is, the contour of the seating surface 42 (head 41 in plan view) is circular. As shows 4 to (A), and said head 41 is provided at the upper end of the shaft portion 40, the shaft portion 40, said bearing surface 42 Separately sub seat surface 43 of the head 41 is formed Yes.
Further, a pressing member 6 is provided on the shaft portion 40 of the screw 4. As shown in FIG. 4 (B), the pressing member 6 is a washer having a hole 60 that penetrates vertically and allows the shaft portion 40 of the screw 4 to pass therethrough. The outer diameter of the sub seat surface 43 is larger than the inner diameter of the hole 60 of the pressing member 6. The sub-seat surface 43 is a contact portion provided so that the pressing member 6 pushed up by receiving a force from below does not come too close to the screw head 42 (the seat surface 42). Further, regarding the downward movement of the pressing member 6, the pressing member 6 engages with the thread of the shaft portion 40. However, even if the pressing member 6 rotates around the shaft portion 40 by a conventionally known method, the pressing member 6 moves downward according to the screw pitch. It is formed so as not to move freely but to rotate freely. Thus, the pressing member 6 does not fall down below the shaft portion 40.

上記の引張バネ5は、1本の金属の線材にて形成された引張りコイルバネである。図5(A)へ示す通り、上方から順に、引張バネ5をケーシング2内へ固定する固定用巻き部51と、伸縮巻き部52と、ネジ4の座面42と当接してネジ4を保持する保持用巻き部53とを備える。
固定用巻き部51は、図5(B)へ示す通り、引張バネ5において、平面視矩形に巻かれた区間であり、4つの直線部分51a…51a(辺)を備える。この実施の形態において、固定用巻き部51は、引張バネ5を形成する線材を、2巻き(2回)矩形に巻くことによって、形成されている。
固定用巻き部51が呈する上記の矩形において、1組の向い合う辺(直線部分51a,51a)間の幅(固定用巻き部51の前後の幅)が、上記第2支持部a2の支持突設部a20、a20に設けられた溝a21,a21(の底)間の幅に対応する。
The tension spring 5 is a tension coil spring formed of a single metal wire. As shown in FIG. 5A, the fixing spring 51 for fixing the tension spring 5 into the casing 2, the expansion / contraction winding 52, and the seat surface 42 of the screw 4 are held in order from above to hold the screw 4. And holding winding portion 53.
As shown in FIG. 5 (B), the fixing winding 51 is a section wound in a rectangular shape in plan view in the tension spring 5, and includes four straight portions 51a ... 51a (sides). In this embodiment, the fixing winding 51 is formed by winding the wire forming the tension spring 5 into a two-turn (twice) rectangle.
In the rectangle presented by the fixing winding portion 51, the width between the pair of opposing sides (straight line portions 51a, 51a) (the width before and after the fixing winding portion 51) is the support protrusion of the second support portion a2. This corresponds to the width between the grooves a21 and a21 (the bottom thereof) provided in the installation portions a20 and a20.

上記伸縮巻き部52は、引張バネ5において、平面視円形に巻かれた区間である。この実施の形態において、伸縮巻き部52は、上記線材を5巻き(5回)巻くことによって、形成されている。
上記の保持用巻き部53は、図5(B)へ示す通り、引張バネ5において、平面視矩形に巻かれた区間であり、4つの直線部分(長辺53a,53a、短辺53b,53b)を備える。この実施の形態において、保持用巻き部53は、引張バネ5を形成する線材を、2巻き(2回)矩形に巻くことによって、形成されている。保持用巻き部53は、上記のネジ4の座面42(頭部41)の径よりも大きな径と、ネジ4の座面42(頭部41)の径よりも小さな径とを備える。ここで、保持用巻き部53について、ネジ4の座面42に対する径の大小というのは、2巻きの夫々について、ネジ4の座面42の径より、大きな径の部分(大径部)と、小さな径の部分(小径部)とが設けられているということである(一方の巻きの径が上記座面42の径より大きく、他方の巻きの径が上記座面42の径より小さいということではない)。
この実施の形態において、図5(B)へ示す通り、引張バネ5を形成する線材は、上記の保持用巻き部53にて、平面視長方形を呈するように巻かれている。即ち、保持用巻き部53の上記各巻き(2巻き)の夫々について、平面視同一の向きに配置された長方形を呈する。
図5(C)は、ネジ4の各部と上記保持用巻き部53との大きさを対比する説明図である。この図5(C)へ示す通り、上記の長方形の長辺53a,53a間の間隔(短辺53bの長さ)は、ネジ4の上記座面42の直径よりも小さく、ネジ4の軸部40の直径よりも大きいかこれと等しい。この長方形の短辺53b,53b間の間隔(長辺53aの長さ)は、ネジ4の上記座面42の直径よりも大きい。即ち、この実施の形態において、長辺53a,53aが上記の小径部を構成し、短辺53b,53bが上記の大径部を構成する。
また、保持用巻き部53の上下の幅は、ネジ4の座面42と副座面43との間の幅と同じかそれよりも小さい。
The Shin Chijimimaki out portion 52, the tension spring 5 is a section wound in circular shape in plan view. In this embodiment, Shin Chijimimaki out portion 52, by winding the wire 5 wound (5 times), is formed.
The holding winding portion 53 is a section wound in a rectangular shape in plan view in the tension spring 5 as shown in FIG. 5 (B), and has four straight portions (long sides 53a and 53a, short sides 53b and 53b). ). In this embodiment, the holding winding portion 53 is formed by winding the wire forming the tension spring 5 into a two-turn (twice) rectangle. The holding winding portion 53 has a diameter larger than the diameter of the seating surface 42 (head 41) of the screw 4 and a diameter smaller than the diameter of the seating surface 42 (head 41) of the screw 4. Here, with respect to the holding winding portion 53, the size of the diameter of the screw 4 with respect to the seating surface 42 is a portion having a larger diameter (large diameter portion) than the diameter of the seating surface 42 of the screw 4 for each of the two turns. is that portion of the smaller diameter and (small diameter portion) is provided (the diameter of one winding is larger than the diameter of the seat surface 42, the diameter of the other winding is smaller than the diameter of the seat surface 42 Not that).
In this embodiment, as shown in FIG. 5B, the wire forming the tension spring 5 is wound around the holding winding portion 53 so as to exhibit a rectangular shape in plan view. That is, each of the above-described windings (two windings) of the holding winding portion 53 has a rectangular shape arranged in the same direction in plan view.
FIG. 5C is an explanatory diagram comparing the size of each part of the screw 4 and the holding winding part 53. As shown in FIG. 5C, the distance between the long sides 53 a and 53 a of the rectangle (the length of the short side 53 b) is smaller than the diameter of the seat surface 42 of the screw 4, and the shaft portion of the screw 4. Greater than or equal to 40 diameters. The interval between the rectangular short sides 53 b and 53 b (the length of the long side 53 a) is larger than the diameter of the seating surface 42 of the screw 4. That is, in this embodiment, the long sides 53a and 53a constitute the small diameter portion, and the short sides 53b and 53b constitute the large diameter portion.
In addition, the vertical width of the holding winding portion 53 is the same as or smaller than the width between the seat surface 42 and the sub seat surface 43 of the screw 4.

製造時において、図6(A)及び図7へ示す通り、上記の図4へ示すネジ4の座面42の下に、上記図5へ示す引張バネ5の保持用巻き部53が位置するよう、引張バネ5へネジ4を装着する。この装着に際して、ネジ4の頭部41側より、引張バネ5の下部の上記保持用巻き部53の長辺53aを、当該頭部41の座面42に引っ掛けて、保持用巻き部53の他の部分を上方よりこの頭部41へ押し付けることにより、長辺53a,53a間の幅を押し広げて、ネジ4の頭部42を乗り越えさせ、保持用巻き部53全体をネジ4の座面42側へ移行させることができる。このように頭部41を乗り越えた後バネ4の弾性によって、保持用巻き部53は、元の状態に戻り、ネジ4の座面42に対して、上記長辺53a,53aが対応する。
そして、図6(B)及び図7へ示すように、引張バネ5の固定用巻き部51の直線部分51aの一つを前記の一方の支持突設部a20の溝a21へ、当該直線部分51aと向かい合う他の直線部分51aを他方の支持突設部a20の溝a21へ挿入する。これによって、固定用巻き部51を第支持部a2へ固定することができ、ケーシング2内にて、電気導通板3のネジ穴31の上方に、ネジ4を吊下げることができる。
図8へ示す通り、上記の線挿入開口部21より電気導通板3の上に電気接続線mの端部を挿入し、操作用開口部22からねじ回し(図示せず。)の先端をケーシング2内に挿入してネジ4を押し下げて電気導通板のネジ穴31へネジ4を螺合することにより、電気接続線mを電気導通板3と押圧部材6とにて挟み、電気接続線mを電気導通板3に接続することができる。
At the time of manufacture, as shown in FIGS. 6A and 7, the holding winding portion 53 of the tension spring 5 shown in FIG. 5 is positioned below the seat surface 42 of the screw 4 shown in FIG. The screw 4 is attached to the tension spring 5. At the time of mounting, the long side 53 a of the holding winding portion 53 below the tension spring 5 is hooked on the seating surface 42 of the head 41 from the head 41 side of the screw 4, and the other of the holding winding portion 53. Is pressed against the head 41 from above to widen the width between the long sides 53a and 53a so as to get over the head 42 of the screw 4 and the entire holding winding 53 is seated on the seat 42 of the screw 4. Can be moved to the side. Thus, the holding winding portion 53 returns to the original state by the elasticity of the rear spring 4 after getting over the head 41, and the long sides 53 a and 53 a correspond to the seating surface 42 of the screw 4.
Then, as shown in FIG. 6B and FIG. 7, one of the straight portions 51a of the fixing winding 51 of the tension spring 5 is inserted into the groove a21 of the one support projecting portion a20. Is inserted into the groove a21 of the other support projecting portion a20. As a result, the fixing winding 51 can be fixed to the second support portion a <b> 2, and the screw 4 can be suspended above the screw hole 31 of the electrical conduction plate 3 in the casing 2.
As shown to FIG. 8, insert the ends of the electrical connecting line m on the electrical conduction plate 3 the line insertion opening 21 of the, the tip of the screwdriver from the operation opening 22 (not shown.) The electrical connection line m is sandwiched between the electrical conduction plate 3 and the pressing member 6 by inserting into the casing 2 and pushing down the screw 4 to screw the screw 4 into the screw hole 31 of the electrical conduction plate. m can be connected to the electrical conduction plate 3.

上記の実施の形態において、固定用巻き部51と保持用巻き部53とは、長方形状に巻かれたものとしたが、長方形に限定するものではなく、例えば正方形状に巻かれたものとしても実施可能である。正方形とした場合、当該正方形の向かい合う頂点間(対角線)の幅が、ネジ4の頭部41の座面42の直径より大きく、向かい合う辺間の幅(辺の長さ)が、ネジ4の頭部41の座面42の直径よりも小さいものとすればよい。
この他、このような四角形に限定するものではなく、他の多角形状に巻かれたものとしても実施可能である。また、固定用巻き部51と保持用巻き部53の巻きの形状については、上記の多角形に限定するものではなく、例えば長円(円弧部分と直線部分とを備えた円)や、その他の直線部分と曲線部分とが複合されたものであっても実施可能である。
このような他の実施の形態について、図9を用いて説明する。図9(A)はこの実施の形態の引張バネ5を示す略底面図であり、図9(B)は、当該引張バネ5にネジ4を装着した状態を示す略平面図であり、図9(C)は図9(B)の略側面図である。
図9(A)〜(C)に示す通り、保持用巻き部53について、線材を長円状に巻いて形成することも可能である(この図9に示す実施の形態では、固定用巻き部51については平面視円弧状に巻かれている)。
この場合、当該長円の長軸の長さを、ネジ4の頭部41の座面42の直径よりも大きいものとし、当該長円の短軸の長さを、ネジ4の頭部41の座面42の直径よりも小さなものとすればよい。この図9に示す実施の形態においても、明示した以外の構成については、上記図1〜図8へ示す実施の形態と同様である。
In the above embodiment, the fixing winding portion 51 and the holding winding portion 53 are wound in a rectangular shape, but are not limited to a rectangular shape. For example, the fixing winding portion 51 and the holding winding portion 53 may be wound in a square shape. It can be implemented. In the case of a square, the width between the opposite vertices (diagonal lines) of the square is larger than the diameter of the seating surface 42 of the head 41 of the screw 4, and the width between the opposite sides (side length) is the head of the screw 4. What is necessary is just to make it smaller than the diameter of the seating surface 42 of the part 41. FIG.
In addition, the present invention is not limited to such a quadrangle, and the present invention can be implemented by winding it in other polygonal shapes. Further, the winding shape of the fixing winding portion 51 and the holding winding portion 53 is not limited to the above polygonal shape. For example, an ellipse (a circle having an arc portion and a straight portion), other Even if the straight line part and the curved line part are combined, the present invention can be implemented.
Such another embodiment will be described with reference to FIG. FIG. 9A is a schematic bottom view showing the tension spring 5 of this embodiment, and FIG. 9B is a schematic plan view showing a state in which the screw 4 is attached to the tension spring 5. FIG. (C) is a schematic side view of FIG. 9 (B).
As shown in FIGS. 9A to 9C, the holding winding portion 53 can be formed by winding a wire rod in an oval shape (in the embodiment shown in FIG. 9, the fixing winding portion). 51 is wound in a circular arc shape in plan view).
In this case, the length of the major axis of the ellipse is larger than the diameter of the seating surface 42 of the head 41 of the screw 4, and the length of the minor axis of the ellipse is set to the length of the head 41 of the screw 4. The diameter may be smaller than the diameter of the seating surface 42. In the embodiment shown in FIG. 9 as well, the configurations other than those specified are the same as those in the embodiment shown in FIGS.

また、引張バネ4の各巻き部51,52,53も、上記の図1〜図8及び図9へ示す実施の形態の巻き数に限定するものではなく、種々変更可能である。また、引張バネ4は、コイルバネに限定するものではなく、竹の子バネ(実開昭63−43362号)であっても実施可能である。
ネジ4の座面42は、ネジ4の頭部41が備えるものとしたが、別途の座金をネジ4に装着することにより、当該座金が座面42を提供するものとしても実施可能である。
更に、上記の実施の形態において、端子台1が備えるケーシング2は、側面部aと中央部bとが別々に形成されて組み合わされるものであった。この他、側面部と中央部とは一体に形成されたものを採用して実施することも可能である。
また、上記の実施の形態において、端子台は、トランスに利用されるものを示した。但し、トランスへの利用に限定ものではなく、その他の電気機器や電気部品、電気接続線同士を電気的に接続する電気接続具に利用することも可能である。
Moreover, each winding part 51,52,53 of the tension spring 4 is not limited to the winding number of embodiment shown to said FIG.1 ~ FIG.8 and FIG.9, It can change variously. Further, the tension spring 4 is not limited to a coil spring, and can be implemented even if it is a bamboo spring (Japanese Utility Model Publication No. 63-43362).
The seat surface 42 of the screw 4 is provided in the head portion 41 of the screw 4, but the present invention can also be implemented by providing a seat surface 42 by attaching a separate washer to the screw 4.
Furthermore, in said embodiment, the casing 2 with which the terminal block 1 is provided was formed by combining the side part a and the central part b separately. In addition, it is also possible to employ a side part and a central part that are integrally formed.
Moreover, in said embodiment, the terminal block showed what was utilized for a transformer. However, the present invention is not limited to use in a transformer, and can be used in other electrical devices, electrical components, and electrical connectors that electrically connect electrical connection lines.

(A)は本願発明に係るトランスの全体正面図であり、(B)はこのトランスの全体側面図であり、(C)はこのトランスの全体平面図である。(A) is the whole front view of the transformer based on this invention, (B) is the whole side view of this transformer, (C) is the whole top view of this transformer. (A)及び(B)は、上記トランスに用いられる端子台のケーシングの要部斜視図である。(A) And (B) is a principal part perspective view of the casing of the terminal block used for the said transformer. (A)は上記端子台のケーシングの上記と他の部位を示す要部側面図であり、(B)その底面図であり、(C)はその平面図であり、(D)はその背面図であり、(E)はその正面図である。(A) is the principal part side view which shows the said and other site | parts of the casing of the said terminal block, (B) It is the bottom view, (C) is the top view, (D) is the back view. (E) is a front view thereof. (A)は上記の端子台に用いられるネジの正面図であり、(B)は当該ネジに座金が装着された状態を示す正面図である。(A) is a front view of the screw used for said terminal block, (B) is a front view which shows the state by which the washer was mounted | worn with the said screw. (A)は上記端子台に用いられる引張バネの斜視図であり、(B)はその平面図であり、(C)はその説明図である。(A) is a perspective view of a tension spring used for the terminal block, (B) is a plan view thereof, and (C) is an explanatory view thereof. (A)は図5に示す引張バネを図4(B)へ示すネジへ装着した状態を示す斜視図であり、(B)は(A)に示す引張バネを図2(A)へ示すケーシングの要部へ装着した状態を示す斜視図である。(A) is a perspective view showing a state where the tension spring shown in FIG. 5 is attached to the screw shown in FIG. 4 (B), and (B) is a casing shown in FIG. 2 (A). It is a perspective view which shows the state with which the principal part was mounted | worn. 図6(A)へ示す引張バネを装着した状態を示す端子台の縦断面図である。It is a longitudinal cross-sectional view of the terminal block which shows the state which mounted | wore the tension | pulling spring shown to FIG. 6 (A). 図7へ示す端子台の使用状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the use condition of the terminal block shown in FIG. (A)は上記バネ4の他の実施の形態を示す略底面図であり、(B)は(A)のバネにネジを装着した状態を示す略平面図であり、(C)は(B)の略側面図である。(A) is a schematic bottom view showing another embodiment of the spring 4, (B) is a schematic plan view showing a state where a screw is attached to the spring of (A), and (C) is (B ) Is a schematic side view.

1 端子台
2 ケーシング
3 電気導通板
4 ネジ
5 引張バネ
51 固定用巻き部
52 伸縮巻き部
53 保持用巻き部
DESCRIPTION OF SYMBOLS 1 Terminal block 2 Casing 3 Electric conduction board 4 Screw 5 Tension spring 51 Fixing winding part 52 Telescopic winding part 53 Holding winding part

Claims (6)

正面に線挿入用開口部と上面に操作用開口部とを有するケーシングと、ケーシング内に設けられた電気導通板と、軸部とねじ回しを嵌合することが可能な頭部とを有するネジと、線材を巻いた状態にすることにて形成された引張バネとを備え、上記のネジについて上記頭部又は座金の装着にて座面を形成するものであり、上記の電気導通板は、上下に貫通するネジ穴を備え、上記の引張バネは、ケーシング内にて電気導通板の上方にネジを吊下げるものであり、上記の線挿入開口部より電気導通板の上に電気接続線の端部を挿入し、操作用開口部からねじ回しの先端をケーシング内に挿入してネジを押し下げて電気導通板のネジ穴へネジを螺合することにより、電気接続線を電気導通板に接続することが可能な端子台において、
上記の引張バネは、引張バネをケーシング内へ固定する固定用巻き部と、ネジの座面と当接してネジを保持する保持用巻き部と、固定用巻き部と保持用巻き部との間に介された伸縮巻き部とを備え、
上記保持用巻き部は、ネジの座面の径よりも大きな径と、ネジの座面の径よりも小さな径とを備え、保持用巻き部の上記何れの径の部分も、ネジの軸部を通すことが可能なものであることを特徴とする端子台。
Screw having a casing having a wire insertion opening on the front surface and an operation opening on the upper surface, an electric conduction plate provided in the casing, and a head portion capable of fitting the shaft portion and a screwdriver. And a tension spring formed by winding the wire, and forming a seating surface by mounting the head or washer for the screw, the electrical conduction plate is with a screw hole penetrating vertically, said tension spring is for suspending the screw above the electrical conduction plate in the casing, electrical connection lines on the electrical conduction plate than a line insertion opening of the Insert the end of the screw into the casing, insert the tip of the screwdriver through the opening for operation into the casing, push down the screw, and screw the screw into the screw hole of the electric conduction plate. In the terminal block that can be connected,
The tension spring includes a fixing winding portion that fixes the tension spring in the casing, a holding winding portion that contacts the seat surface of the screw and holds the screw, and between the fixing winding portion and the holding winding portion. With a stretchable winding part interposed between,
The holding winding part has a diameter larger than the diameter of the screw seating surface and a diameter smaller than the diameter of the screw seating surface. Terminal block characterized by being able to pass through.
上記のネジの座面の輪郭は、円形であり、
上記の引張バネを形成する線材は、少なくとも保持用巻き部において、多角形状に巻かれた状態に形成されたものであり、
上記の保持用巻き部は、上記線材の弾性を利用して押し広げることによってネジの頭部側から当該頭部を超えて座面側に配置することができ、上記ネジの座面より小さな径の部分が、座面と当接して、保持用巻き部からネジが脱落するのを防止するものであることを特徴とする請求項1記載の端子台。
The outline of the bearing surface of the screw is circular,
The wire forming the tension spring is formed in a state of being wound in a polygonal shape at least in the holding winding portion,
The holding winding portion can be arranged on the seat surface side from the head side of the screw to the seat surface side by spreading using the elasticity of the wire, and has a diameter smaller than that of the screw seat surface. The terminal block according to claim 1, wherein the portion is in contact with the seating surface to prevent the screw from falling off from the holding winding portion.
保持用巻き部が呈する上記の多角形は、長方形であることを特徴とする請求項2記載の端子台。   The terminal block according to claim 2, wherein the polygon that the holding winding portion exhibits is a rectangle. 上記のネジの座面の輪郭は、円形であり、
上記の引張バネを形成する線材は、少なくとも保持用巻き部において、長円状に巻かれた状態に形成されたものであり、
上記の保持用巻き部は、上記線材の弾性を利用して押し広げることによってネジの頭部側から当該頭部を超えて座面側に配置することができ、上記ネジの座面より径の小さな部分が、座面と当接して、保持用巻き部からネジが脱落するのを防止するものであることを特徴とする請求項1記載の端子台。
The outline of the bearing surface of the screw is circular,
The wire that forms the tension spring is formed in a state of being wound in an oval shape at least in the holding winding portion,
The holding winding part can be arranged on the seat surface side from the head side of the screw to the seat surface side by pushing and spreading using the elasticity of the wire, and has a diameter larger than the seat surface of the screw. The terminal block according to claim 1, wherein the small portion is in contact with the seat surface to prevent the screw from dropping from the holding winding portion.
上記のネジには、ネジの上記軸部に装着され且つ電気導通板と共に電気接続線を挟む押圧部材が設けられ、
上記のネジには、押圧部材の上記座面への接近を制限する副座面が設けられたことを特徴とする請求項1乃至4の何れかに記載の端子台。
The screw is provided with a pressing member that is attached to the shaft portion of the screw and sandwiches the electrical connection line together with the electrical conduction plate,
The terminal block according to claim 1, wherein the screw is provided with a sub-seat surface that restricts the approach of the pressing member to the seat surface.
請求項1乃至5の何れかに記載の端子台を備えたトランス。
A transformer comprising the terminal block according to claim 1.
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JP2014232612A (en) * 2013-05-28 2014-12-11 スワロー電機株式会社 Terminal block for transformer

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KR101414001B1 (en) 2013-04-23 2014-07-04 서일전자 주식회사 Terminal block with a current transformer

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JPS5361572U (en) * 1976-10-25 1978-05-25
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JPS6343362U (en) * 1986-09-09 1988-03-23
JPH0338624U (en) * 1989-08-25 1991-04-15
JPH04370670A (en) * 1991-06-18 1992-12-24 Mibu Denki Seisakusho:Kk Tool for electric connection
JPH05152016A (en) * 1991-10-01 1993-06-18 Mitsubishi Electric Corp Terminal base

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JPS5361572U (en) * 1976-10-25 1978-05-25
JPS6057068U (en) * 1983-09-20 1985-04-20 三菱電機株式会社 Terminal device for mounting wiring materials
JPS6343362U (en) * 1986-09-09 1988-03-23
JPH0338624U (en) * 1989-08-25 1991-04-15
JPH04370670A (en) * 1991-06-18 1992-12-24 Mibu Denki Seisakusho:Kk Tool for electric connection
JPH05152016A (en) * 1991-10-01 1993-06-18 Mitsubishi Electric Corp Terminal base

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014232612A (en) * 2013-05-28 2014-12-11 スワロー電機株式会社 Terminal block for transformer

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