JP2006153154A - Mounting body and screw fixing nut - Google Patents

Mounting body and screw fixing nut Download PDF

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JP2006153154A
JP2006153154A JP2004345299A JP2004345299A JP2006153154A JP 2006153154 A JP2006153154 A JP 2006153154A JP 2004345299 A JP2004345299 A JP 2004345299A JP 2004345299 A JP2004345299 A JP 2004345299A JP 2006153154 A JP2006153154 A JP 2006153154A
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screw shaft
screw
hole
shaft portion
elastic engagement
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JP4366296B2 (en
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Shohachi Shimizu
昭八 清水
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MIRAI KK
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MIRAI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting body in which a screw fixing nut can be miniaturized and internal space can be widen. <P>SOLUTION: A box 5 for wiring as the mounting body is provided with a peripheral wall 5c to surround the internal space 5b, and a boss 6, 6 located inside the peripheral wall 5c. The boss 6 has an insertion hole 6a inserted by a screw 4 for attaching a wiring accessory 2. A screw fixing nut 7 is housed in the boss 6. The screw fixing nut 7 is made of a plate, and provided with a through hole 7a which communicates with the insertion hole 6a and passed by a screw shank 4a, and elastic engaging pieces 7b, 7b forming extendedly to wind the screw shank 4a passing a through hole 7a so as to form the inner peripheral surface of the through hole 7a. The elastic engaging piece 7b has an engaging part 7c projecting toward the through hole 7a side at the tip portion formed extendedly and engaging with the screw shank 4a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、配線器具等の被取着物が、ビスを用いて取着される取着体、および、その取着体等に設けられて、ビスを固定するためのビス固定ナットに関するものである。   The present invention relates to an attachment body in which an object to be attached such as a wiring device is attached using a screw, and a screw fixing nut for fixing the screw provided on the attachment body or the like. .

従来、建物の壁表側から、被取着物としての配線器具を固定するには、取付け用のビスを、前記配線器具が取着された器具枠に挿通するとともに、壁内に隠蔽もしくは埋設された、取着体としての配線用ボックスの一対のボス部内に収容されたナット、または、そのボックスに取り付けられた、取着体としてのボックスカバーの一対のボス部内に収容されたナットに、前記ビスをねじ込んでいた。   Conventionally, in order to fix a wiring device as an attachment from the front side of a building wall, a mounting screw is inserted into a device frame to which the wiring device is attached and concealed or buried in the wall. The nuts accommodated in the pair of bosses of the wiring box as the attachment body, or the nuts accommodated in the pair of boss portions of the box cover as the attachment body attached to the box, Was screwed in.

しかし、前記ビスによるねじ込み作業は、ビスをドライバーで回転させて締め込んでいかなければならず、大変面倒でかつ時間のかかるものであった。   However, the screwing operation with the screw has to be tightened by rotating the screw with a screwdriver, which is very troublesome and time consuming.

そこで、前記ナットの替わりに、板状のビス固定ナットを用いた配線用ボックス(スイッチボックス)が考案された(例えば、特許文献1参照)。このビス固定ナットには、ビス挿通孔が明けられており、そのビス挿通孔の周囲に、放射状に切れ目が入れられることで、多数のたわみ片が形成されていた。そして、ビスを、ドライバーで回転させることなく、ビス挿通孔に押し込むことで、ビスの山が、たわみ片の先端部分に係合し、こうして、配線器具を配線用ボックスに固定することができた。   Therefore, a wiring box (switch box) using a plate-like screw fixing nut instead of the nut has been devised (see, for example, Patent Document 1). The screw fixing nut has a screw insertion hole, and a large number of flexible pieces are formed by radially cutting off the periphery of the screw insertion hole. Then, by pushing the screw into the screw insertion hole without rotating with a screwdriver, the screw pile engaged with the tip of the flexible piece, and thus the wiring device could be fixed to the wiring box. .

実開昭52−64393号公報Japanese Utility Model Publication No. 52-64393

ところで、前記従来の、取着体としての配線用ボックスにおいては、ビス固定ナットのたわみ片に弾性を付与する必要があることから、そのたわみ片を形成するためのビス挿通孔の全周に設けられた切れ目を、長くしなければならなかった。その結果、前記ビス挿通孔は、切れ目を含めて大径となり、ボス部全体が大型化された。そのため、ボス部が、内部空間に向けて突出して形成されてしまい、大型の配線器具と干渉し、その配線器具の挿入ができない等の問題があった。   By the way, in the conventional wiring box as the attachment body, it is necessary to give elasticity to the flexible piece of the screw fixing nut, so it is provided on the entire circumference of the screw insertion hole for forming the flexible piece. The cuts made had to be lengthened. As a result, the screw insertion hole had a large diameter including the cut, and the entire boss portion was enlarged. For this reason, the boss portion is formed so as to protrude toward the internal space, which interferes with a large-sized wiring device, and there is a problem that the wiring device cannot be inserted.

この発明は、上記した従来の欠点を解決するためになされたものであり、その目的とするところは、ビス固定ナットを小型化することができる、取着体およびビス固定ナットを提供することにある。   The present invention has been made to solve the above-described conventional drawbacks, and an object of the present invention is to provide an attachment body and a screw fixing nut capable of reducing the size of the screw fixing nut. is there.

また、他の目的は、ビス固定ナットを小型化することで、取着体の内部空間を広く取ることができる、取着体およびビス固定ナットを提供することにある。   Another object of the present invention is to provide an attachment body and a screw fixing nut that can take a wide internal space of the attachment body by downsizing the screw fixing nut.

この発明に係る取着体およびビス固定ナットは、前記目的を達成するために、次の構成からなる。すなわち、
請求項1に記載の発明に係る取着体は、配線器具等の被取着物が、ビスを用いて取着される取着体であって、少なくとも一方に開放部を有する内部空間を形成するようにその内部空間を囲む周壁と、前記周壁の内面側に位置するボス部とを備える。ここにおいて、前記ボス部は、前記ビスが前記開放部側から挿入される挿入孔を有する。そして、前記ボス部内には、前記開放部側から前記挿入孔に挿入された前記ビスを固定するためのビス固定ナットが収容される。このビス固定ナットは、板材からなり、前記挿入孔と連通して前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備える。そして、前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられている。そこで、前記挿入孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記挿入孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止する。
In order to achieve the above object, the attachment body and the screw fixing nut according to the present invention have the following configuration. That is,
The attachment body according to the first aspect of the present invention is an attachment body in which an object to be attached such as a wiring device is attached using a screw, and forms an internal space having an open portion at least on one side. As described above, a peripheral wall surrounding the internal space and a boss portion located on the inner surface side of the peripheral wall are provided. Here, the boss part has an insertion hole into which the screw is inserted from the open part side. And the screw fixing nut for fixing the said screw inserted in the said insertion hole from the said open part side is accommodated in the said boss | hub part. The screw fixing nut is made of a plate material, the screw shaft passing through the through hole so as to form a through hole that communicates with the insertion hole and through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole. And an elastic engagement piece extending so as to wrap around the part. The elastic engagement piece is provided with an engagement portion that protrudes toward the through hole side and engages with the screw shaft portion that passes through the through hole at the extended tip portion. Therefore, for the insertion of the screw shaft portion into the insertion hole, the elastic engagement piece is inclined in the insertion direction of the screw shaft portion, or the inclination in the insertion direction is increased. By elastically deforming, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement engaged with the screw shaft portion is prevented from coming off from the insertion hole. The piece is elastically deformed in the removal direction of the elastic engagement piece by pressing the screw shaft portion so as to be elastically deformed so that the inclination in the insertion direction is reduced in the removal direction of the screw shaft portion. Deformation is difficult to prevent the screw shaft portion from moving in the pulling direction.

これにより、この取着体に配線器具等の被取着物を取り付けるには、この取着体のボス部に設けられた挿入孔に、開放部側からビスを押し込むように押圧する。こうすることで、ビス固定ナットに設けられた弾性係合片の先端部分の、通孔側に突出した係合部が、ビス軸部に押圧される。それに共なって、弾性係合片が、ビス軸部の挿入方向へ傾斜するように、あるいは、挿入方向への傾斜が増すように弾性変形して、ビス軸部の、挿入方向への移動が許容されて、このビス軸部は、通孔に挿入される。そして、ビスの押し込みを終えると、弾性係合片の係合部は、ビス軸部と係合し、こうして、ビスが固定され、被取着物は、取着体に取着される。ここにおいて、挿入孔からのビス軸部の抜けに対しては、ビス軸部と係合した弾性係合片が、ビス軸部につられて、その抜け方向へ、すなわち前記挿入方向への傾斜が減ずる方向へ弾性変形しようとして、弾性係合片は、ビス軸部を押圧する。そして、この押圧により、弾性係合片は、前記抜け方向への弾性変形が困難となるとともに、ビス軸部への係合が強固なものとなり、ビスの抜けが阻止される。ここで、ビス固定ナットは、弾性係合片が、ビス軸部が通る通孔の内周面を形成するように、その通孔を通るビス軸部の周囲を巻くようにして延設されている。このように、弾性係合片が、通孔に向かって延設されるのではなく、通孔を通るビス軸部の周囲を巻くようにして延設されることで、これら通孔と弾性係合片とで構成されるビス固定ナットの小型化が可能となる。そして、このように、ボス部内に収容されるビス固定ナットは、小型化が可能なことから、ボス部を小さくして、この取着体の内部空間を広く取ることができる。   Thereby, in order to attach an object to be attached such as a wiring tool to the attachment body, a screw is pushed into the insertion hole provided in the boss portion of the attachment body from the open portion side. By doing so, the engaging portion protruding to the through hole side of the tip end portion of the elastic engaging piece provided on the screw fixing nut is pressed against the screw shaft portion. At the same time, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft part or to increase the inclination in the insertion direction, so that the screw shaft part moves in the insertion direction. The screw shaft portion is allowed to be inserted into the through hole. When the screw is pushed in, the engagement portion of the elastic engagement piece is engaged with the screw shaft portion, and thus the screw is fixed and the adherend is attached to the attachment body. Here, when the screw shaft portion is removed from the insertion hole, the elastic engagement piece engaged with the screw shaft portion is attached to the screw shaft portion, and the inclination in the removal direction, that is, the insertion direction is inclined. The elastic engagement piece presses the screw shaft portion in an attempt to elastically deform in the decreasing direction. By this pressing, the elastic engagement piece becomes difficult to be elastically deformed in the removal direction, and the engagement with the screw shaft portion becomes strong, and the screw is prevented from coming off. Here, the screw fixing nut extends so that the elastic engagement piece winds around the screw shaft portion passing through the through hole so as to form an inner peripheral surface of the through hole through which the screw shaft portion passes. Yes. Thus, the elastic engagement pieces are not extended toward the through holes, but are extended so as to wind around the screw shaft portions passing through the through holes. It is possible to reduce the size of the screw fixing nut composed of the joint piece. And since the screw fixing nut accommodated in a boss | hub part can be reduced in size in this way, a boss | hub part can be made small and the internal space of this attachment body can be taken widely.

また、請求項2に記載の発明に係る取着体は、請求項1に記載の取着体において、前記ビス固定ナットは、前記通孔と前記弾性係合片が設けられた第1板部と、その第1板部の周端の全周あるいはほぼ全周から折れ曲がって形成された第2板部とを備える。こうして、ビス固定ナットが、第1板部の周端の全周あるいはほぼ全周から折れ曲がって形成された第2板部を備えることで、第1板部に設けられた弾性係合片が安定して支持される。   According to a second aspect of the present invention, in the attachment body according to the first aspect, the screw fixing nut includes a first plate portion provided with the through hole and the elastic engagement piece. And a second plate part formed by being bent from the entire circumference or substantially the entire circumference of the peripheral edge of the first plate part. Thus, the screw fixing nut is provided with the second plate part formed by being bent from the entire circumference or substantially the entire circumference of the first plate part, so that the elastic engagement piece provided on the first plate part is stable. To be supported.

また、請求項3に記載の発明に係る取着体は、請求項1または2に記載の取着体において、前記弾性係合片は、三つ設けられ、それら弾性係合片が、前記通孔の中心を対称軸として120度の回転対称の位置に配置されている。このように、三つの弾性係合片を、120度の回転対称の位置に配置することで、ビス軸部と係合する弾性係合片が、そのビス軸部をバランス良く支持し、かつ、弾性係合片の長さを適度に取ることができる。   According to a third aspect of the present invention, there is provided the attachment body according to the first or second aspect, wherein three elastic engagement pieces are provided, and the elastic engagement pieces are provided in the passage. It is arranged at a rotationally symmetric position of 120 degrees with the center of the hole as the symmetry axis. Thus, by arranging the three elastic engagement pieces at a rotationally symmetric position of 120 degrees, the elastic engagement pieces that engage with the screw shaft portion support the screw shaft portion in a balanced manner, and The length of the elastic engagement piece can be appropriately set.

また、請求項4に記載の発明に係る取着体は、請求項1ないし3のいずれか1項に記載の取着体において、前記ビスは右ねじであって、前記弾性係合片は、前記挿入方向から見て、前記通孔を時計回り方向に回る方向に延設されている。これにより、弾性係合片の係合部がビス軸部と係合したときに、前記挿入方向への傾斜による弾性係合片の延設方向が、ビス軸部のねじの螺旋の方向と同じ側となる。したがって、弾性係合片の係合部は、ビス軸部に確実に係合し、ビスの抜けを的確に阻止することができる。   Further, the attachment body according to the invention of claim 4 is the attachment body according to any one of claims 1 to 3, wherein the screw is a right-hand thread, and the elastic engagement piece is As viewed from the insertion direction, the through hole extends in a clockwise direction. Thereby, when the engaging part of the elastic engaging piece is engaged with the screw shaft part, the extending direction of the elastic engaging piece due to the inclination in the inserting direction is the same as the screw direction of the screw of the screw shaft part. Become the side. Therefore, the engaging portion of the elastic engaging piece can reliably engage with the screw shaft portion and accurately prevent the screw from coming off.

また、請求項5に記載の発明に係るビス固定ナットは、配線器具等の被取着物が、ビスを用いて取着される取着体の、少なくとも一方に開放部を有する内部空間を形成するようにその内部空間を囲む周壁の、内面側に位置するボス部内に収容され、前記開放部側から前記ボス部の挿入孔に挿入された前記ビスを固定するためのビス固定ナットである。このビス固定ナットは、板材からなり、前記挿入孔と連通して前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備える。そして、前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられている。そこで、前記挿入孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記挿入孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止する。   In addition, the screw fixing nut according to the invention of claim 5 forms an internal space in which an object to be attached such as a wiring device has an open portion in at least one of the attachments attached using screws. Thus, a screw fixing nut for fixing the screw that is accommodated in the boss portion located on the inner surface side of the peripheral wall surrounding the inner space and inserted into the insertion hole of the boss portion from the open portion side. The screw fixing nut is made of a plate material, the screw shaft passing through the through hole so as to form a through hole communicating with the insertion hole and through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole. And an elastic engagement piece extending so as to wrap around the part. The elastic engagement piece is provided with an engagement portion that protrudes toward the through hole side and engages with the screw shaft portion that passes through the through hole at the extended tip portion. Therefore, for the insertion of the screw shaft portion into the insertion hole, the elastic engagement piece is inclined in the insertion direction of the screw shaft portion, or the inclination in the insertion direction is increased. By elastically deforming, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement engaged with the screw shaft portion is prevented from coming off from the insertion hole. The piece is elastically deformed in the removal direction of the elastic engagement piece by pressing the screw shaft portion so as to be elastically deformed so that the inclination in the insertion direction is reduced in the removal direction of the screw shaft portion. Deformation is difficult to prevent the screw shaft portion from moving in the pulling direction.

これにより、取着体に配線器具等の被取着物を取り付けるには、この取着体のボス部に設けられた挿入孔に、開放部側からビスを押し込むように押圧する。こうすることで、ビス固定ナットに設けられた弾性係合片の先端部分の、通孔側に突出した係合部が、ビス軸部に押圧される。それに共なって、弾性係合片が、ビス軸部の挿入方向へ傾斜するように、あるいは、挿入方向への傾斜が増すように弾性変形して、ビス軸部の、挿入方向への移動が許容されて、このビス軸部は、通孔に挿入される。そして、ビスの押し込みを終えると、弾性係合片の係合部は、ビス軸部と係合し、こうして、ビスが固定され、被取着物は、取着体に取着される。ここにおいて、挿入孔からのビス軸部の抜けに対しては、ビス軸部と係合した弾性係合片が、ビス軸部につられて、その抜け方向へ、すなわち前記挿入方向への傾斜が減ずる方向へ弾性変形しようとして、弾性係合片は、ビス軸部を押圧する。そして、この押圧により、弾性係合片は、前記抜け方向への弾性変形が困難となるとともに、ビス軸部への係合が強固なものとなり、ビスの抜けが阻止される。ここで、ビス固定ナットは、弾性係合片が、ビス軸部が通る通孔の内周面を形成するように、その通孔を通るビス軸部の周囲を巻くようにして延設されている。このように、弾性係合片が、通孔に向かって延設されるのではなく、通孔を通るビス軸部の周囲を巻くようにして延設されることで、これら通孔と弾性係合片とで構成されるビス固定ナットの小型化が可能となる。そして、このように、ボス部内に収容されるビス固定ナットは、小型化が可能なことから、ボス部を小さくして、取着体の内部空間を広く取ることができる。   Thus, in order to attach an object to be attached such as a wiring device to the attachment body, a screw is pushed into the insertion hole provided in the boss portion of the attachment body from the open portion side. By doing so, the engaging portion protruding to the through hole side of the tip end portion of the elastic engaging piece provided on the screw fixing nut is pressed against the screw shaft portion. At the same time, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft part or to increase the inclination in the insertion direction, so that the screw shaft part moves in the insertion direction. The screw shaft portion is allowed to be inserted into the through hole. When the screw is pushed in, the engagement portion of the elastic engagement piece is engaged with the screw shaft portion, and thus the screw is fixed and the adherend is attached to the attachment body. Here, when the screw shaft portion is removed from the insertion hole, the elastic engagement piece engaged with the screw shaft portion is attached to the screw shaft portion, and the inclination in the removal direction, that is, the insertion direction is inclined. The elastic engagement piece presses the screw shaft portion in an attempt to elastically deform in the decreasing direction. By this pressing, the elastic engagement piece becomes difficult to be elastically deformed in the removal direction, and the engagement with the screw shaft portion becomes strong, and the screw is prevented from coming off. Here, the screw fixing nut extends so that the elastic engagement piece winds around the screw shaft portion passing through the through hole so as to form an inner peripheral surface of the through hole through which the screw shaft portion passes. Yes. Thus, the elastic engagement pieces are not extended toward the through holes, but are extended so as to wind around the screw shaft portions passing through the through holes. It is possible to reduce the size of the screw fixing nut composed of the joint piece. And since the screw fixing nut accommodated in a boss | hub part can be reduced in size in this way, a boss | hub part can be made small and the internal space of an attachment body can be taken widely.

また、請求項6に記載の発明に係るビス固定ナットは、ビスと係合してそのビスを固定するためのビス固定ナットである。このビス固定ナットは、板材からなり、前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備える。そして、前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられている。そこで、前記通孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記通孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止する。   The screw fixing nut according to the invention of claim 6 is a screw fixing nut for engaging with the screw and fixing the screw. The screw fixing nut is made of a plate material and is wound around the screw shaft portion passing through the through hole so as to form a through hole through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole. And an elastic engagement piece extended. The elastic engagement piece is provided with an engagement portion that protrudes toward the through hole side and engages with the screw shaft portion that passes through the through hole at the extended tip portion. Therefore, for the insertion of the screw shaft portion into the through hole, the elastic engagement piece is inclined in the insertion direction of the screw shaft portion, or the inclination in the insertion direction is increased. By elastically deforming, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement engaged with the screw shaft portion is prevented from coming off from the through hole. The piece is elastically deformed in the removal direction of the elastic engagement piece by pressing the screw shaft portion so as to be elastically deformed so that the inclination in the insertion direction is reduced in the removal direction of the screw shaft portion. Deformation is difficult to prevent the screw shaft portion from moving in the pulling direction.

これにより、ビスを固定するには、ビス固定ナットに設けられた通孔に、ビスを押し込むように押圧する。こうすることで、ビス固定ナットに設けられた弾性係合片の先端部分の、通孔側に突出した係合部が、ビス軸部に押圧される。それに共なって、弾性係合片が、ビス軸部の挿入方向へ傾斜するように、あるいは、挿入方向への傾斜が増すように弾性変形して、ビス軸部の、挿入方向への移動が許容されて、このビス軸部は、通孔に挿入される。そして、ビスの押し込みを終えると、弾性係合片の係合部は、ビス軸部と係合し、こうして、ビスは固定される。ここにおいて、通孔からのビス軸部の抜けに対しては、ビス軸部と係合した弾性係合片が、ビス軸部につられて、その抜け方向へ、すなわち前記挿入方向への傾斜が減ずる方向へ弾性変形しようとして、弾性係合片は、ビス軸部を押圧する。そして、この押圧により、弾性係合片は、前記抜け方向への弾性変形が困難となるとともに、ビス軸部への係合が強固なものとなり、ビスの抜けが阻止される。ここで、ビス固定ナットは、弾性係合片が、ビス軸部が通る通孔の内周面を形成するように、その通孔を通るビス軸部の周囲を巻くようにして延設されている。このように、弾性係合片が、通孔に向かって延設されるのではなく、通孔を通るビス軸部の周囲を巻くようにして延設されることで、これら通孔と弾性係合片とで構成されるビス固定ナットの小型化が可能となる。   Thereby, in order to fix the screw, the screw is pressed into the through hole provided in the screw fixing nut. By doing so, the engaging portion protruding to the through hole side of the tip end portion of the elastic engaging piece provided on the screw fixing nut is pressed against the screw shaft portion. At the same time, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft part or to increase the inclination in the insertion direction, so that the screw shaft part moves in the insertion direction. The screw shaft portion is allowed to be inserted into the through hole. When the screw is pushed in, the engaging portion of the elastic engagement piece engages with the screw shaft portion, and thus the screw is fixed. Here, when the screw shaft portion is removed from the through hole, the elastic engagement piece engaged with the screw shaft portion is attached to the screw shaft portion, and the inclination in the removal direction, that is, the insertion direction is inclined. The elastic engagement piece presses the screw shaft portion in an attempt to elastically deform in the decreasing direction. By this pressing, the elastic engagement piece becomes difficult to be elastically deformed in the removal direction, and the engagement with the screw shaft portion becomes strong, and the screw is prevented from coming off. Here, the screw fixing nut extends so that the elastic engagement piece winds around the screw shaft portion passing through the through hole so as to form an inner peripheral surface of the through hole through which the screw shaft portion passes. Yes. Thus, the elastic engagement pieces are not extended toward the through holes, but are extended so as to wind around the screw shaft portions passing through the through holes. It is possible to reduce the size of the screw fixing nut composed of the joint piece.

請求項1ないし5に記載の発明に係る取着体およびビス固定ナットによれば、ビス固定ナットの弾性係合片を、通孔に向かって延設するのではなく、通孔を通るビス軸部の周囲を巻くようにして延設することで、これら通孔と弾性係合片とで構成されてボス部内に収容されるビス固定ナットを小型化することができる。そして、この小型化されたビス固定ナットにより、ボス部を小さくして、取着体の内部空間を広く取ることができる。   According to the attachment body and the screw fixing nut according to the first to fifth aspects of the present invention, the elastic engagement piece of the screw fixing nut does not extend toward the through hole, but the screw shaft passes through the through hole. By extending so as to wind around the periphery of the portion, the screw fixing nut configured by these through holes and the elastic engagement pieces and accommodated in the boss portion can be reduced in size. And with this miniaturized screw fixing nut, the boss portion can be made small and the internal space of the attachment body can be widened.

また、請求項6に記載の発明に係るビス固定ナットによれば、弾性係合片を、通孔に向かって延設するのではなく、通孔を通るビス軸部の周囲を巻くようにして延設することで、これら通孔と弾性係合片とで構成されるビス固定ナットを小型化することができる。   Further, according to the screw fixing nut according to the invention of claim 6, the elastic engagement piece is not extended toward the through hole, but is wound around the screw shaft portion passing through the through hole. By extending, the screw fixing nut comprised by these through-holes and an elastic engagement piece can be reduced in size.

以下、この発明に係る取着体およびビス固定ナットを実施するための最良の形態を図面に基づいて説明する。   Hereinafter, the best mode for carrying out an attachment body and a screw fixing nut according to the present invention will be described with reference to the drawings.

図1ないし図5は、本発明の一実施の形態を示す。図中符号1は、建物の壁である。2は、被取着物としての、コンセントとかスイッチ等の配線器具である。3は、その配線器具2を保持する保持材としての保持パネルである。4は、固着具としてのビスである。5は、前記配線器具2がビス4を用いて取着される、取着体としての配線用ボックスである。   1 to 5 show an embodiment of the present invention. Reference numeral 1 in the figure denotes a building wall. Reference numeral 2 denotes a wiring device such as an outlet or a switch as an attachment. Reference numeral 3 denotes a holding panel as a holding material for holding the wiring device 2. 4 is a screw as a fixing tool. Reference numeral 5 denotes a wiring box as an attachment body to which the wiring device 2 is attached using screws 4.

ここで、保持パネル3は、枠状に形成されており、その枠内に、配線器具2が取り付けられる。そして、保持パネル3は、その各側、例えば上下の各側に、ビス4が挿通される孔3aが形成されている。   Here, the holding panel 3 is formed in a frame shape, and the wiring device 2 is attached in the frame. The holding panel 3 is formed with holes 3a through which the screws 4 are inserted on each side thereof, for example, the upper and lower sides.

配線用ボックス5は、一方に開放部5aを有する内部空間5bを形成するようにその内部空間5bを囲む周壁5cと、周壁5cの内面側に位置するボス部6、6とを備えている。そして、ボス部6は、ビス4が前記開放部5a側から挿入される挿入孔6aを有する。ここにおいて、ボス部6内には、前記開放部5a側から挿入孔6aに挿入されたビス4を固定するためのビス固定ナット7が収容されている。このビス固定ナット7は、板材からなり、挿入孔6aと連通して前記ビス4のビス軸部4aが通る通孔7aと、その通孔7aの内周面を形成するように、その通孔7aを通るビス軸部4aの周囲を巻くようにして延設される弾性係合片7bとを備える。弾性係合片7bは、その延設された先端部分に、通孔7a側に突出して、通孔7aを通るビス軸部4aと係合する係合部7cが設けられている。   The wiring box 5 includes a peripheral wall 5c surrounding the internal space 5b so as to form an internal space 5b having an open portion 5a on one side, and bosses 6 and 6 positioned on the inner surface side of the peripheral wall 5c. The boss portion 6 has an insertion hole 6a into which the screw 4 is inserted from the open portion 5a side. Here, a screw fixing nut 7 for fixing the screw 4 inserted into the insertion hole 6a from the open portion 5a side is accommodated in the boss portion 6. The screw fixing nut 7 is made of a plate material, and communicates with the insertion hole 6a so as to form a through hole 7a through which the screw shaft portion 4a of the screw 4 passes and an inner peripheral surface of the through hole 7a. And an elastic engagement piece 7b extending so as to wind around the screw shaft portion 4a passing through 7a. The elastic engaging piece 7b is provided with an engaging portion 7c that protrudes toward the through hole 7a and engages with the screw shaft portion 4a passing through the through hole 7a at the extended tip portion.

そこで、ボス部6の挿入孔6aおよびボス部6内に収容されたビス固定ナット7の通孔7aへのビス軸部4aの挿入に対しては、ビス固定ナット7の弾性係合片7bは、ビス軸部4aの挿入方向Pへ傾斜するように、あるいは、挿入方向Pへの傾斜が増すように(図示実施の形態においては、挿入方向Pへの傾斜が増すように)弾性変形することで、ビス軸部4aの、前記挿入方向Pへの移動を許容する。反対に、挿入孔6aからのビス軸部4aの抜けに対しては、ビス軸部4aと係合した弾性係合片7bが、ビス軸部4aの抜け方向Qへ、前記挿入方向Pへの傾斜が減ずるように弾性変形しようとして、ビス軸部4aを押圧することにより、弾性係合片7bの、前記抜け方向Qへの弾性変形を困難にして、ビス軸部4aの、前記抜け方向Qへの移動を阻止する。   Therefore, for the insertion of the screw shaft portion 4a into the insertion hole 6a of the boss portion 6 and the through hole 7a of the screw fixing nut 7 accommodated in the boss portion 6, the elastic engagement piece 7b of the screw fixing nut 7 is And elastic deformation so that the screw shaft portion 4a is inclined in the insertion direction P or the inclination in the insertion direction P is increased (in the illustrated embodiment, the inclination in the insertion direction P is increased). Thus, the screw shaft 4a is allowed to move in the insertion direction P. On the contrary, when the screw shaft portion 4a is removed from the insertion hole 6a, the elastic engagement piece 7b engaged with the screw shaft portion 4a moves in the removal direction Q of the screw shaft portion 4a in the insertion direction P. By pressing the screw shaft portion 4a in an attempt to be elastically deformed so that the inclination is reduced, it is difficult to elastically deform the elastic engagement piece 7b in the pulling direction Q, and the screw shaft portion 4a has the pulling direction Q. Stop moving to.

具体的には、配線用ボックス5は、合成樹脂製であって、前側に前記開放部5aを備えた箱型形状、例えば直方体形状をしている。そこで、ボス部6は、配線用ボックス5の、例えば上下の各側に、周壁5cから内部空間5b側に突出するようにして形成される。そして、このボス部6に、配線用ボックス5の前側(つまり、前記開放部5a側)から後方に向かって、前記挿入孔6aが形成される。また、ボス部6には、ビス固定ナット7を収容する収容孔6bが、前記挿入孔6aに連通するようにして形成される。詳細には、この収容孔6bは、周壁5cの外面側から挿入孔6aに向かって交差(図示実施の形態においては直交)するように明けられている。   Specifically, the wiring box 5 is made of a synthetic resin and has a box shape with the opening 5a on the front side, for example, a rectangular parallelepiped shape. Therefore, the boss portion 6 is formed on each of the upper and lower sides of the wiring box 5 so as to protrude from the peripheral wall 5c toward the internal space 5b. And the insertion hole 6a is formed in this boss | hub part 6 toward the back from the front side (namely, the said opening part 5a side) of the box 5 for wiring. The boss 6 is formed with an accommodation hole 6b for accommodating the screw fixing nut 7 so as to communicate with the insertion hole 6a. Specifically, the accommodation hole 6b is opened so as to intersect (orthogonally in the illustrated embodiment) from the outer surface side of the peripheral wall 5c toward the insertion hole 6a.

ビス固定ナット7は、前側(つまり、前記開放部5a側)からボス部6の挿入孔6aに挿入されたビス4と係合してそのビス4を固定するためのものであり、前記通孔7aと前記弾性係合片7bが設けられた第1板部8を備える。詳細には、ビス固定ナット7は、ばね性を有する板材、例えば、鋼板とか銅合金板等の金属板からなり、前記第1板部8と、後述する第2板部9とを備える。   The screw fixing nut 7 is engaged with the screw 4 inserted into the insertion hole 6a of the boss portion 6 from the front side (that is, the open portion 5a side) to fix the screw 4, and the through hole 7a and a first plate portion 8 provided with the elastic engagement piece 7b. Specifically, the screw fixing nut 7 is made of a plate material having a spring property, for example, a metal plate such as a steel plate or a copper alloy plate, and includes the first plate portion 8 and a second plate portion 9 described later.

第1板部8は、例えば略六角形状をしており、ボス部6の挿入孔6aと交差(図示実施の形態においては直交)するように位置する。そして、通孔7aは、例えば、第1板部8の中央に明けられており、前記挿入孔6aと連通するように位置する。弾性係合片7bは、第1板部8において、通孔7aから外方側に渦を巻くように延びる切り込み8aと、通孔7aとに挟まれるようにして形成される。こうして、弾性係合片7bは、通孔7aを通るビス軸部4aの周囲を、前記切り込み8aの方向とは反対方向に巻くように延設される。また、弾性係合片7bは、基端側から先端側に向かうにつれて、ビス軸部4aの挿入方向Pに進むように傾斜して形成されている(図4参照)。加えて、弾性係合片7bは、通孔7a側が、その通孔7aから離れた側よりも、前記挿入方向P側となるように傾斜している(図2参照)。そして、図示実施の形態においては、巴形に類似した弾性係合片7bが、三つ設けられ、それら弾性係合片7b、7bが、通孔7aの中心を対称軸として120度の回転対称の位置に渦を巻くように配置されている。ここにおいて、ビス4が右ねじであるのに対し、これら弾性係合片7b、7bは、ビス軸部4aの挿入方向Pから見て、通孔7aを時計回り方向に回る方向に延設されている(図3、図5参照)。   The first plate portion 8 has, for example, a substantially hexagonal shape, and is positioned so as to intersect with the insertion hole 6a of the boss portion 6 (orthogonal in the illustrated embodiment). And the through-hole 7a is opened in the center of the 1st board part 8, for example, and is located so that it may communicate with the said insertion hole 6a. The elastic engagement piece 7b is formed in the first plate portion 8 so as to be sandwiched between a notch 8a extending so as to spiral outward from the through hole 7a and the through hole 7a. Thus, the elastic engagement piece 7b is extended so as to wind around the screw shaft portion 4a passing through the through hole 7a in a direction opposite to the direction of the notch 8a. Further, the elastic engagement piece 7b is formed to be inclined so as to advance in the insertion direction P of the screw shaft portion 4a from the proximal end side toward the distal end side (see FIG. 4). In addition, the elastic engagement piece 7b is inclined so that the through hole 7a side is closer to the insertion direction P side than the side away from the through hole 7a (see FIG. 2). In the illustrated embodiment, three elastic engagement pieces 7b similar to a bowl shape are provided, and these elastic engagement pieces 7b, 7b are rotationally symmetric by 120 degrees with the center of the through hole 7a as the axis of symmetry. It arrange | positions so that a vortex may be wound in the position of. Here, while the screw 4 is a right-hand thread, the elastic engagement pieces 7b and 7b are extended in a direction of turning clockwise through the through hole 7a when viewed from the insertion direction P of the screw shaft portion 4a. (See FIGS. 3 and 5).

第2板部9は、第1板部8の周端の全周あるいはほぼ全周(図示実施の形態においては全周)から、例えばビス軸部4aの挿入方向Pに、直角に折れ曲がって形成されている。すなわち、第1板部8が、略六角形状であるのに対して、この第2板部9は、略六角の筒形状となっている。こうして、ビス固定ナット7は、カップ状に形成されることとなる。   The second plate portion 9 is formed by being bent at a right angle, for example, in the insertion direction P of the screw shaft portion 4a from the entire periphery of the first plate portion 8 or substantially the entire periphery (the entire periphery in the illustrated embodiment). Has been. That is, the first plate portion 8 has a substantially hexagonal shape, whereas the second plate portion 9 has a substantially hexagonal cylindrical shape. Thus, the screw fixing nut 7 is formed in a cup shape.

次に、以上の構成からなる配線用ボックス5およびビス固定ナット7の作用効果について説明する。この配線用ボックス5は、予め、壁1の裏側の柱等に、木ねじ等の固着具により取り付けられている。そこで、この配線用ボックス5に配線器具2を取り付けるには、配線用ボックス5に対応して壁1に明けられた壁孔1a部分における、壁1の表側に、配線器具2を取り付けた保持パネル3を宛がう。その後、ビス4(詳細には、ビス軸部4a)を保持パネル3の孔3aに通し、この配線用ボックス5のボス部6に設けられた挿入孔6aおよびボス部6内に収容されたビス固定ナット7の通孔7aに、前側(すなわち、開放部5a側)からビス4を押し込むように押圧する。こうすることで、ビス固定ナット7に設けられた弾性係合片7b、7bの先端部分の、通孔7a側に突出した係合部7c、7cが、ビス軸部4aに押圧される。それに共なって、弾性係合片7b、7bが、ビス軸部4aの挿入方向Pへ傾斜するように、あるいは、挿入方向Pへの傾斜が増すように(図示実施の形態においては、挿入方向Pへの傾斜が増すように)弾性変形して、ビス軸部4aの、挿入方向Pへの移動が許容されて、このビス軸部4aは、挿入孔6aおよび通孔7aに挿入される。そして、ビス4の押し込みを終えると、弾性係合片7b、7bの係合部7cは、ビス軸部4aと係合し、こうして、ビス4が固定され、配線器具2は、保持パネル3とともに配線用ボックス5に取着される。   Next, the function and effect of the wiring box 5 and the screw fixing nut 7 having the above configuration will be described. The wiring box 5 is previously attached to a column or the like on the back side of the wall 1 with a fixing tool such as a wood screw. Therefore, in order to attach the wiring device 2 to the wiring box 5, a holding panel in which the wiring device 2 is attached to the front side of the wall 1 in the wall hole 1 a portion opened in the wall 1 corresponding to the wiring box 5. 3 is assigned. Thereafter, the screw 4 (specifically, the screw shaft portion 4a) is passed through the hole 3a of the holding panel 3, and the insertion hole 6a provided in the boss portion 6 of the wiring box 5 and the screw accommodated in the boss portion 6 are provided. The screw 4 is pressed into the through hole 7a of the fixing nut 7 from the front side (that is, the open portion 5a side). By doing so, the engaging portions 7c and 7c projecting toward the through hole 7a at the tip portions of the elastic engaging pieces 7b and 7b provided on the screw fixing nut 7 are pressed against the screw shaft portion 4a. At the same time, the elastic engagement pieces 7b, 7b are inclined in the insertion direction P of the screw shaft portion 4a, or the inclination in the insertion direction P is increased (in the illustrated embodiment, the insertion direction). The screw shaft portion 4a is allowed to move in the insertion direction P by being elastically deformed (so that the inclination to P increases), and the screw shaft portion 4a is inserted into the insertion hole 6a and the through hole 7a. When the push-in of the screw 4 is finished, the engagement portion 7c of the elastic engagement piece 7b, 7b is engaged with the screw shaft portion 4a. Thus, the screw 4 is fixed, and the wiring device 2 is fixed together with the holding panel 3. It is attached to the wiring box 5.

ここにおいて、挿入孔6aおよび通孔7aからのビス軸部4aの抜けに対しては、ビス軸部4aと係合した弾性係合片7b、7bが、ビス軸部4aにつられて、その抜け方向Qへ、すなわち前記挿入方向Pへの傾斜が減ずる方向へ弾性変形しようとして、弾性係合片7b、7bは、ビス軸部4aを押圧する。そして、この押圧により、弾性係合片7b、7bは、前記抜け方向Qへの弾性変形が困難となるとともに、ビス軸部4aへの係合が強固なものとなり、ビス4の抜けが阻止される。このように、ビス4をボス部6の挿入孔6a、そして通孔7aに押し込むことで、配線用ボックス5に配線器具2を簡単に固定することができる。しかも、ビス軸部4aの周囲を巻くようにして延設される弾性係合片7b、7bは、ビス4の抜けに対して、ビス軸部4aの周方向に絡み付いて大きな抵抗力を発揮するため、この配線用ボックス5に配線器具2を確実に固定することができる。   In this case, the elastic engagement pieces 7b and 7b engaged with the screw shaft portion 4a are attached to the screw shaft portion 4a so that the screw shaft portion 4a is removed from the insertion hole 6a and the through hole 7a. The elastic engagement pieces 7b and 7b press the screw shaft portion 4a in an attempt to elastically deform in the direction Q, that is, the direction in which the inclination in the insertion direction P is reduced. By this pressing, the elastic engagement pieces 7b and 7b are difficult to be elastically deformed in the removal direction Q, and the engagement with the screw shaft portion 4a becomes strong, and the screw 4 is prevented from coming off. The Thus, the wiring device 2 can be easily fixed to the wiring box 5 by pushing the screw 4 into the insertion hole 6a of the boss portion 6 and the through hole 7a. In addition, the elastic engagement pieces 7b and 7b extending so as to wind around the screw shaft portion 4a are entangled in the circumferential direction of the screw shaft portion 4a and exert a great resistance against the withdrawal of the screw 4. Therefore, the wiring device 2 can be securely fixed to the wiring box 5.

さらに、ビス4は右ねじであって、ビス固定ナット7の弾性係合片7b、7bは、前記挿入方向Pから見て、通孔7aを時計回り方向に回る方向に延設されている。こうすることで、弾性係合片7b、7bの係合部7c、7cがビス軸部4aと係合したときに、前記挿入方向Pへの傾斜による弾性係合片7b、7bの延設方向が、ビス軸部4aのねじの螺旋の方向(図4参照)と同じ側となる。よって、弾性係合片7b、7bの係合部7c、7cは、ビス軸部4aに確実に係合し、ビス4の抜けを的確に阻止することができる。   Further, the screw 4 is a right-hand thread, and the elastic engagement pieces 7b and 7b of the screw fixing nut 7 are extended in a direction of turning clockwise through the through hole 7a when viewed from the insertion direction P. By doing so, when the engaging portions 7c, 7c of the elastic engaging pieces 7b, 7b are engaged with the screw shaft portion 4a, the extending direction of the elastic engaging pieces 7b, 7b due to the inclination in the insertion direction P Is on the same side as the screw spiral direction (see FIG. 4) of the screw shaft portion 4a. Therefore, the engaging portions 7c and 7c of the elastic engaging pieces 7b and 7b can be reliably engaged with the screw shaft portion 4a and the screw 4 can be prevented from coming off accurately.

また、上述のように、ビス固定ナット7は、弾性係合片7bが、ビス軸部4aが通る通孔7aの内周面を形成するように、その通孔7aを通るビス軸部4aの周囲を巻くようにして延設されている。このように、弾性係合片7bが、通孔7aに向かって延設されるのではなく、通孔7aを通るビス軸部4aの周囲を巻くようにして延設されることで、これら通孔7aと弾性係合片7bとで構成されるビス固定ナット7の小型化が可能となる。そして、このように、ボス部6内に収容されるビス固定ナット7を小型化することができることから、ボス部6を小さくして、この配線用ボックス5の内部空間5bを広く取ることができる。したがって、この内部空間5bに大きな配線器具2を収容することができる。   Further, as described above, the screw fixing nut 7 has an elastic engagement piece 7b of the screw shaft portion 4a passing through the through hole 7a so that the inner peripheral surface of the through hole 7a through which the screw shaft portion 4a passes is formed. It extends so as to wind around. Thus, the elastic engagement piece 7b is not extended toward the through hole 7a, but is extended so as to wind around the screw shaft portion 4a passing through the through hole 7a. The screw fixing nut 7 constituted by the hole 7a and the elastic engagement piece 7b can be downsized. And since the screw fixing nut 7 accommodated in the boss | hub part 6 can be reduced in size in this way, the boss | hub part 6 can be made small and the internal space 5b of this wiring box 5 can be taken widely. . Accordingly, the large wiring device 2 can be accommodated in the internal space 5b.

また、ビス固定ナット7は、第1板部8の周端の全周あるいはほぼ全周から折れ曲がって形成された第2板部9を備えることで、第1板部8に設けられた弾性係合片7bが安定して支持される。そして、ビス固定ナット7は、三つの弾性係合片7b、7bが、120度の回転対称の位置に配置されることから、ビス軸部4aと係合する弾性係合片7b、7bが、そのビス軸部4aをバランス良く支持し、かつ、弾性係合片7b、7bの長さを適度に取ることができる。   Further, the screw fixing nut 7 includes a second plate portion 9 formed by being bent from the entire circumference or substantially the entire circumference of the first plate portion 8, so that the elastic engagement provided in the first plate portion 8 is provided. The combined piece 7b is stably supported. And since the three elastic engagement pieces 7b and 7b are arrange | positioned in the rotationally symmetrical position of 120 degree | times, the screw | thread fixing nut 7 has the elastic engagement pieces 7b and 7b engaged with the screw shaft part 4a. The screw shaft portion 4a is supported in a well-balanced manner, and the lengths of the elastic engagement pieces 7b and 7b can be appropriately taken.

ところで、配線用ボックス5に配線器具2を取り付ける際に、配線用ボックス5の挿入孔6aとビス固定ナット7の通孔7aとにビス4のビス軸部4aを押し込んだ後、さらに、そのビス4を、その締め付け方向に回動してもよい。このように、ビス4に回動を加えることで、この配線用ボックス5に配線器具2を強固に固定することが可能となる。   By the way, when the wiring device 2 is attached to the wiring box 5, after the screw shaft portion 4 a of the screw 4 is pushed into the insertion hole 6 a of the wiring box 5 and the through hole 7 a of the screw fixing nut 7, the screw 4 may be rotated in the tightening direction. Thus, by rotating the screw 4, the wiring device 2 can be firmly fixed to the wiring box 5.

反対に、配線用ボックス5から配線器具2を取り外すには、弾性係合片7bが係合したビス4を、その緩み方向に回動する。こうすることで、ビス4は、後退してボス部6(詳細には、挿入孔6a)から取り除かれ、配線器具2は、保持パネル3とともに、配線用ボックス5から取り外される。   On the contrary, in order to remove the wiring device 2 from the wiring box 5, the screw 4 engaged with the elastic engagement piece 7b is rotated in the loosening direction. By doing so, the screw 4 is retracted and removed from the boss portion 6 (specifically, the insertion hole 6a), and the wiring device 2 is removed from the wiring box 5 together with the holding panel 3.

なお、本発明は、上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。例えば、ビス固定ナット7における弾性係合片7bは、切り込み8aによって形成されているが、図6に示すように、切り欠き8bによって形成されても構わない。ここで、この弾性係合片7bは、ビス軸部4aの挿入方向Pから見て、反時計回り方向に回る方向に延設されている。このように、弾性係合片7bは、時計回り方向あるいは反時計回り方向のいずれの方向に延設されても構わない。   In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the elastic engagement piece 7b in the screw fixing nut 7 is formed by the notch 8a, but may be formed by the notch 8b as shown in FIG. Here, this elastic engagement piece 7b is extended in the direction which turns counterclockwise, seeing from the insertion direction P of the screw shaft part 4a. Thus, the elastic engagement piece 7b may be extended in either the clockwise direction or the counterclockwise direction.

また、弾性係合片7bは、三つ設けられているが、その数は三つに限定されるものではなく、幾つであってもよい。   Moreover, although the three elastic engagement pieces 7b are provided, the number is not limited to three and may be any number.

また、弾性係合片7bは、ビス軸部4aが挿入孔6aおよび通孔7aに挿入される前から挿入方向Pに傾斜していてもよいが、ビス軸部4aが挿入される前においては、挿入孔6aの軸方向と直交し、ビス軸部4aを挿入することで、弾性係合片7bが、ビス軸部4aに押されて、そのビス軸部4aの挿入方向Pへ傾斜するように、弾性変形するものであってもよい。   The elastic engagement piece 7b may be inclined in the insertion direction P before the screw shaft portion 4a is inserted into the insertion hole 6a and the through hole 7a, but before the screw shaft portion 4a is inserted. By inserting the screw shaft portion 4a perpendicular to the axial direction of the insertion hole 6a, the elastic engagement piece 7b is pushed by the screw shaft portion 4a and tilted in the insertion direction P of the screw shaft portion 4a. Further, it may be elastically deformed.

また、ビス固定ナット7は、第1板部8と第2板部9とから構成されているが、この第2板部9はなくともよい。   Moreover, although the screw fixing nut 7 is comprised from the 1st board part 8 and the 2nd board part 9, this 2nd board part 9 does not need to be.

また、取着体は、内部空間5bが一方に開放部5aを有する配線用ボックス5等でなくとも、内部空間が一方に開放部を有するとともに他方にも開放する枠状の取着体であってもよい。この枠状の取着体としては、例えば被取着物としての配線器具2が取着されるとともに、配線用ボックスに取り付けられる配線用ボックスカバー等がある。ここで、配線用ボックスカバーとしては、塗代付きのボックスカバーとか板状のボックスカバー等がある。さらに、取着体は、これら配線用ボックス5とか配線用ボックスカバーでなくとも、被取着物がビス4を用いて取着されるものであればどのようなものでもよい。   Further, the attachment body is a frame-like attachment body in which the internal space has an open portion on one side and is open to the other, even if the internal space 5b is not the wiring box 5 having the open portion 5a on one side. May be. As this frame-shaped attachment body, for example, there is a wiring box cover or the like attached to the wiring box while the wiring device 2 as an attachment is attached. Here, as the wiring box cover, there are a box cover with coating, a plate-shaped box cover, and the like. Further, the attachment body is not limited to the wiring box 5 or the wiring box cover, and any attachment body can be used as long as the attachment object is attached using the screws 4.

また、被取着物は、配線器具2でなくとも、例えば、取着体としての配線用ボックス5に取着される配線用ボックスカバーであってもよく、配線器具2に限定されるものではない。   In addition, the attachment object may be a wiring box cover that is attached to the wiring box 5 as the attachment body, and is not limited to the wiring equipment 2, instead of the wiring equipment 2. .

また、ビス固定ナット7は、配線用ボックス5等の取着体のボス部6に収容されて用いられなくとも、一般にビスが用いられる場所であれば、どのような場所に用いられてもよい。   Further, the screw fixing nut 7 may be used in any place as long as the screw is generally used, even if it is not housed in the boss portion 6 of the attachment body such as the wiring box 5 or the like. .

この発明の一実施の形態の、縦断面図である。It is a longitudinal cross-sectional view of one embodiment of this invention. 同じく、図1におけるA部拡大図である。Similarly, it is the A section enlarged view in FIG. 同じく、図2におけるB−B線による断面図である。Similarly, it is sectional drawing by the BB line in FIG. 同じく、図2における、ビス固定ナットの一部を破断したC矢視図である。Similarly, it is C arrow line view which fractured | ruptured a part of screw fixing nut in FIG. 同じく、ビス固定ナットの正面図である。Similarly, it is a front view of a screw fixing nut. この発明の変形形態を示す、ビス固定ナットの正面図である。It is a front view of the screw fixing nut which shows the modification of this invention.

符号の説明Explanation of symbols

2 配線器具(被取着物)
4 ビス
4a ビス軸部
5 配線用ボックス(取着体)
5a 開放部
5b 内部空間
5c 周壁
6 ボス部
6a 挿入孔
7 ビス固定ナット
7a 通孔
7b 弾性係合片
7c 係合部
8 第1板部
9 第2板部
P 挿入方向
Q 抜け方向
2 Wiring equipment (attachment)
4 Screw 4a Screw shaft 5 Wiring box (attachment)
5a Open part 5b Internal space 5c Peripheral wall 6 Boss part 6a Insertion hole 7 Screw fixing nut 7a Through hole 7b Elastic engagement piece 7c Engagement part 8 First plate part 9 Second plate part P Insertion direction Q Removal direction

Claims (6)

配線器具等の被取着物が、ビスを用いて取着される取着体であって、
少なくとも一方に開放部を有する内部空間を形成するようにその内部空間を囲む周壁と、前記周壁の内面側に位置するボス部とを備え、
前記ボス部は、前記ビスが前記開放部側から挿入される挿入孔を有し、
前記ボス部内には、前記開放部側から前記挿入孔に挿入された前記ビスを固定するためのビス固定ナットが収容され、
前記ビス固定ナットは、板材からなり、前記挿入孔と連通して前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備え、
前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられており、
前記挿入孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記挿入孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止することを特徴とする取着体。
The object to be attached such as a wiring device is attached using screws,
A peripheral wall that surrounds the internal space so as to form an internal space having an open portion at least at one side, and a boss portion located on the inner surface side of the peripheral wall,
The boss part has an insertion hole into which the screw is inserted from the open part side,
A screw fixing nut for fixing the screw inserted into the insertion hole from the open part side is accommodated in the boss part,
The screw fixing nut is made of a plate material, the screw shaft passing through the through hole so as to form a through hole that communicates with the insertion hole and through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole. An elastic engagement piece extending so as to wrap around the part,
The elastic engagement piece is provided with an engagement portion that protrudes toward the through-hole side and engages with the screw shaft portion that passes through the through-hole at the extended tip portion.
For the insertion of the screw shaft portion into the insertion hole, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft portion or to increase the inclination in the insertion direction. Thus, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement piece engaged with the screw shaft portion is prevented from coming off from the insertion hole. The elastic engagement piece is elastically deformed in the removal direction by pressing the screw shaft portion in an attempt to elastically deform the screw shaft portion in the removal direction so that the inclination in the insertion direction is reduced. An attachment body, which makes it difficult to prevent the screw shaft portion from moving in the removal direction.
前記ビス固定ナットは、前記通孔と前記弾性係合片が設けられた第1板部と、その第1板部の周端の全周あるいはほぼ全周から折れ曲がって形成された第2板部とを備えることを特徴とする請求項1に記載の取着体。   The screw fixing nut includes a first plate portion provided with the through hole and the elastic engagement piece, and a second plate portion formed by being bent from the entire circumference or substantially the entire circumference of the first plate portion. The attachment body according to claim 1, further comprising: 前記弾性係合片は、三つ設けられ、それら弾性係合片が、前記通孔の中心を対称軸として120度の回転対称の位置に配置されていることを特徴とする請求項1または2に記載の取着体。   3. The elastic engagement pieces are provided in three, and the elastic engagement pieces are arranged at a rotationally symmetric position of 120 degrees with the center of the through hole as the axis of symmetry. The attachment body described in 1. 前記ビスは右ねじであって、
前記弾性係合片は、前記挿入方向から見て、前記通孔を時計回り方向に回る方向に延設されていることを特徴とする請求項1ないし3のいずれか1項に記載の取着体。
The screw is a right-hand thread,
The attachment according to any one of claims 1 to 3, wherein the elastic engagement piece is extended in a direction of turning the through hole in a clockwise direction when viewed from the insertion direction. body.
配線器具等の被取着物が、ビスを用いて取着される取着体の、少なくとも一方に開放部を有する内部空間を形成するようにその内部空間を囲む周壁の、内面側に位置するボス部内に収容され、前記開放部側から前記ボス部の挿入孔に挿入された前記ビスを固定するためのビス固定ナットであって、
板材からなり、前記挿入孔と連通して前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備え、
前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられており、
前記挿入孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記挿入孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止することを特徴とするビス固定ナット。
Boss located on the inner surface side of the peripheral wall surrounding the inner space so as to form an inner space having an open portion in at least one of the attachments to which the attachment object such as a wiring device is attached using screws A screw fixing nut for fixing the screw received in the insertion portion and inserted into the insertion hole of the boss portion from the open portion side,
It is made of a plate material and is wound around the screw shaft portion passing through the through hole so as to form a through hole that communicates with the insertion hole and through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole. An elastic engagement piece extending as
The elastic engagement piece is provided with an engagement portion that protrudes toward the through-hole side and engages with the screw shaft portion that passes through the through-hole at the extended tip portion.
For the insertion of the screw shaft portion into the insertion hole, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft portion or to increase the inclination in the insertion direction. Thus, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement piece engaged with the screw shaft portion is prevented from coming off from the insertion hole. The elastic engagement piece is elastically deformed in the removal direction by pressing the screw shaft portion in an attempt to elastically deform the screw shaft portion in the removal direction so that the inclination in the insertion direction is reduced. A screw fixing nut, which makes it difficult to prevent the screw shaft portion from moving in the removal direction.
ビスと係合してそのビスを固定するためのビス固定ナットであって、
板材からなり、前記ビスのビス軸部が通る通孔と、その通孔の内周面を形成するように、その通孔を通る前記ビス軸部の周囲を巻くようにして延設される弾性係合片とを備え、
前記弾性係合片は、その延設された先端部分に、前記通孔側に突出して、前記通孔を通る前記ビス軸部と係合する係合部が設けられており、
前記通孔への前記ビス軸部の挿入に対しては、前記弾性係合片は、前記ビス軸部の挿入方向へ傾斜するように、あるいは、前記挿入方向への傾斜が増すように弾性変形することで、前記ビス軸部の、前記挿入方向への移動を許容し、前記通孔からの前記ビス軸部の抜けに対しては、前記ビス軸部と係合した前記弾性係合片が、前記ビス軸部の抜け方向へ、前記挿入方向への傾斜が減ずるように弾性変形しようとして、前記ビス軸部を押圧することにより、前記弾性係合片の、前記抜け方向への弾性変形を困難にして、前記ビス軸部の、前記抜け方向への移動を阻止することを特徴とするビス固定ナット。
A screw fixing nut for engaging with a screw to fix the screw,
Elasticity made of a plate material and extending around the screw shaft portion passing through the through hole so as to form a through hole through which the screw shaft portion of the screw passes and an inner peripheral surface of the through hole An engagement piece,
The elastic engagement piece is provided with an engagement portion that protrudes toward the through-hole side and engages with the screw shaft portion that passes through the through-hole at the extended tip portion.
For the insertion of the screw shaft portion into the through hole, the elastic engagement piece is elastically deformed so as to incline in the insertion direction of the screw shaft portion or to increase the inclination in the insertion direction. Thus, the screw shaft portion is allowed to move in the insertion direction, and the elastic engagement piece engaged with the screw shaft portion prevents the screw shaft portion from coming out of the through hole. The elastic engagement piece is elastically deformed in the removal direction by pressing the screw shaft portion so as to be elastically deformed so that the inclination in the insertion direction is reduced in the removal direction of the screw shaft portion. A screw fixing nut, which makes it difficult to prevent the screw shaft portion from moving in the removal direction.
JP2004345299A 2004-11-30 2004-11-30 Attachment body and screw fixing nut Expired - Fee Related JP4366296B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008199718A (en) * 2007-02-09 2008-08-28 Mirai Ind Co Ltd Wiring box and wiring box cover, and screw fixing member for use in wiring box or wiring box cover

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6272657B2 (en) * 2013-04-11 2018-01-31 未来工業株式会社 Bolt cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008199718A (en) * 2007-02-09 2008-08-28 Mirai Ind Co Ltd Wiring box and wiring box cover, and screw fixing member for use in wiring box or wiring box cover

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