JP2012186971A - Bar holder - Google Patents
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- JP2012186971A JP2012186971A JP2011049981A JP2011049981A JP2012186971A JP 2012186971 A JP2012186971 A JP 2012186971A JP 2011049981 A JP2011049981 A JP 2011049981A JP 2011049981 A JP2011049981 A JP 2011049981A JP 2012186971 A JP2012186971 A JP 2012186971A
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Abstract
Description
本発明は、主幹ブレーカに接続された母線バーを支持するバーホルダに関するものである。 The present invention relates to a bar holder that supports a bus bar connected to a main breaker.
配電盤内に配置された複数の負荷に配電を行う構造として、図６に示すように、主幹ブレーカ１に接続された母線バー２に分岐ブレーカを接続して、該分岐ブレーカを介して各負荷に配電を行う構造が多く採用されている（例えば、特許文献１）。 As shown in FIG. 6, a branch breaker is connected to the bus bar 2 connected to the main breaker 1 and distributed to each load through the branch breaker as a structure for distributing power to a plurality of loads arranged in the switchboard. Many structures for power distribution are employed (for example, Patent Document 1).
このような構造において、主幹ブレーカ１に接続された母線バー２の端部は、背面板上に配置されたバーホルダ３により支持される。 In such a structure, the end portion of the bus bar 2 connected to the main breaker 1 is supported by the bar holder 3 disposed on the back plate.
バーホルダ３には、絶縁確保を目的として、バーホルダ３に支持される各母線バー２間に隔壁４が設けられることもある。 In the bar holder 3, a partition wall 4 may be provided between each bus bar 2 supported by the bar holder 3 for the purpose of ensuring insulation.
従来、隔壁４は、バーホルダ３を配電盤内の取付板に取り付ける前段階で、バーホルダ３の裏面側からのねじ止めにより、バーホルダ３に固定される構造が一般的であった。 Conventionally, the partition wall 4 is generally fixed to the bar holder 3 by screwing from the back side of the bar holder 3 before the bar holder 3 is attached to the mounting plate in the switchboard.
しかし、このような構造においては、配電盤内でバーホルダが取り付けられ、更に母線バー２がバーホルダ３に取り付けられている状態で、仕様変更等の事情により、急遽隔壁４の設置が必要になった場合には、配線済みの母線バー２をバーホルダ３から取り外し、母線バー２に設置される分岐バーなども取り外しする必要があり、更にバーホルダ３を配電盤内の取付板から取り外した上で、バーホルダ３への隔壁の設置を行うことが必要となり、隔壁４設置作業が煩雑になり、迅速に対応できないという問題があった。また、表側からのねじ止め方法にすると、ねじを通過させるため、隔壁の口径を広くする必要性があり、口径を広げてしまうと隔壁４間の幅が狭くなってしまい、取り付けられる圧着端子のサイズが小さくする必要性がある。 However, in such a structure, when the bar holder is attached in the switchboard, and the bus bar 2 is attached to the bar holder 3, it is necessary to install the partition wall 4 suddenly due to a change in specifications or the like. In this case, it is necessary to remove the wired bus bar 2 from the bar holder 3 and to remove the branch bar and the like installed on the bus bar 2, and further to the bar holder 3 after removing the bar holder 3 from the mounting plate in the switchboard. It is necessary to install the partition walls, and the work of installing the partition walls 4 becomes complicated, and there is a problem that it is impossible to respond quickly. In addition, if the screwing method from the front side is used, it is necessary to widen the diameter of the partition wall in order to allow the screw to pass through. If the diameter is widened, the width between the partition walls 4 becomes narrow, and the attached crimp terminal There is a need to reduce the size.
本発明の目的は前記の問題を解決し、配電盤内でバーホルダが配電盤内の取付板に取り付けられ、更に母線バーがバーホルダに取り付けられている状態で、仕様変更等の事情により、急遽隔壁の設置が必要になった場合にも、煩雑な作業工程を経ることなく、迅速に隔壁の設置を行うことができるバーホルダを提供することである。 The object of the present invention is to solve the above-mentioned problems, and in the state where the bar holder is attached to the mounting plate in the switchboard and the bus bar is attached to the bar holder, the installation of the partition wall is made suddenly due to changes in specifications, Therefore, it is an object of the present invention to provide a bar holder capable of quickly installing a partition wall without going through a complicated work process even when it becomes necessary.
上記課題を解決するためになされた本発明のバーホルダは、配電盤内で主幹ブレーカに接続された複数の母線バーの他端側を支持するバーホルダであって、該バーホルダは、該母線バーを支持する複数の母線バー支持部を備えるバーホルダ本体と、隣接する母線バー支持部の間に着脱自在に設けた隔壁からなり、バーホルダ本体は、該バーホルダ本体を配電盤内にねじ固定するバーホルダ固定孔と、隔壁とバーホルダ本体の固定時に隔壁固定ねじが挿入される隔壁固定孔を備え、隔壁は、バーホルダ本体を貫通して形成された該バーホルダ固定孔の上端部に嵌入される係止突起を備えることを特徴とするものである。 The bar holder of the present invention made to solve the above problems is a bar holder that supports the other end side of a plurality of bus bar bars connected to the main breaker in the switchboard, and the bar holder supports the bus bar. A bar holder main body having a plurality of bus bar support portions and a partition wall detachably provided between adjacent bus bar support portions. The bar holder main body includes a bar holder fixing hole for fixing the bar holder main body with screws in the switchboard, and a partition wall. And a partition fixing hole into which a partition fixing screw is inserted when the bar holder main body is fixed, and the partition includes a locking projection that is inserted into the upper end portion of the bar holder fixing hole formed through the bar holder body. It is what.
請求項２記載の発明は、請求項１記載のバーホルダにおいて、隔壁は、隔壁本体を貫通して形成された隔壁固定ねじ着脱用貫通孔を備え、該隔壁固定ねじ着脱用貫通孔は、配電盤内で主幹ブレーカ側に向けて配置され、係止突起は、母線バーの他端側に向けて配置されることを特徴とするものである。 According to a second aspect of the present invention, in the bar holder according to the first aspect, the partition includes a partition fixing screw attaching / detaching through hole formed through the partition body, and the partition fixing screw attaching / detaching through hole is provided in the switchboard. And is arranged toward the main breaker side, and the locking projection is arranged toward the other end side of the bus bar.
本発明に係るバーホルダは、該母線バーを支持する複数の母線バー支持部を備えるバーホルダ本体と、隣接する母線バー支持部の間に着脱自在に設けた隔壁からなり、バーホルダ本体は、隔壁とバーホルダ本体の固定時に隔壁側から隔壁固定ねじが挿入される隔壁固定孔を備える構成を有するため、配電盤内でバーホルダが取付バーに取り付けられ、更に母線バーがバーホルダに取り付けられている状態で、仕様変更等の事情により、急遽隔壁の設置が必要になった場合にも、隔壁側から隔壁固定ねじを着脱操作するだけで、簡単に隔壁の設置を行うことができる。また、バーホルダ本体は、該バーホルダ本体を裏面側から配電盤内にねじ固定するバーホルダ固定孔を備え、隔壁は、バーホルダ本体を貫通して形成された該バーホルダ固定孔の上端部に嵌入される係止突起を備える構成を有するため、隔壁とバーホルダ本体とを、該係止突起部と、前記隔壁固定ねじ部との２か所で、十分な強度を持って固定することができる。 The bar holder according to the present invention includes a bar holder body including a plurality of bus bar support portions for supporting the bus bar, and a partition wall detachably provided between adjacent bus bar support portions. The bar holder body includes the partition wall and the bar holder. Changed specifications with a structure that has a partition fixing hole into which a partition fixing screw is inserted from the partition side when fixing the main body, so that the bar holder is attached to the mounting bar and the bus bar is attached to the bar holder in the switchboard Even if it is necessary to install a partition wall suddenly due to such circumstances, the partition wall can be easily installed by simply attaching and detaching the partition wall fixing screw from the partition wall side. The bar holder body includes a bar holder fixing hole for screwing the bar holder body into the switchboard from the back surface side, and the partition wall is engaged with an upper end portion of the bar holder fixing hole formed through the bar holder body. Since it has a structure provided with protrusions, the partition wall and the bar holder main body can be fixed with sufficient strength at two locations of the locking protrusion portion and the partition wall fixing screw portion.
隔壁本体を貫通して形成された隔壁固定ねじ着脱用貫通孔は、隔壁固定ねじが貫通できる口径を確保するため、口孔が大きくなり、母線バーの端部に圧着端子を介して幹線ケーブルを接続する場合には、該圧着端子と隔壁が干渉する問題が生じうるが、請求項２記載の発明によれば、該隔壁固定ねじ着脱用貫通孔を、配電盤内で主幹ブレーカ側に向けて配置する構成により、当該干渉の問題を効果的に回避することができる。 The through hole for attaching / detaching the bulkhead fixing screw formed through the bulkhead body has a large hole to secure a diameter through which the bulkhead fixing screw can pass, and the trunk cable is connected to the end of the bus bar via a crimp terminal. In the case of connection, there may occur a problem that the crimp terminal and the partition interfere with each other. According to the invention of claim 2, the partition fixing screw attaching / detaching through hole is arranged in the switchboard toward the main breaker side. With this configuration, it is possible to effectively avoid the interference problem.
以下に本発明の好ましい実施形態を示す。
図１には主幹ブレーカ１に接続された母線バー２を支持したバーホルダ５の全体説明図を示し、図２にはバーホルダの全体説明図、図３には隔壁およびバーホルダ本体の断面説明図を示している。
Preferred embodiments of the present invention are shown below.
FIG. 1 is an overall explanatory view of a bar holder 5 that supports a bus bar 2 connected to the main breaker 1, FIG. 2 is an overall explanatory view of the bar holder, and FIG. 3 is an explanatory sectional view of a partition wall and a bar holder main body. ing.
母線バー２は、図１に示すように、主幹ブレーカ１の端子部に接続する主幹リードバー（図示しない）を介して主幹ブレーカ１に接続され、母線バー２の他端側はバーホルダ５に支持されている。なお、該母線バー２が接続される主幹ブレーカ１の端子部は、主幹ブレーカ１の電源側／負荷側いずれの端子部でもよい。 As shown in FIG. 1, the bus bar 2 is connected to the main breaker 1 through a main lead bar (not shown) connected to the terminal portion of the main breaker 1, and the other end of the bus bar 2 is supported by the bar holder 5. Has been. Note that the terminal portion of the main breaker 1 to which the bus bar 2 is connected may be either the power source side or load side terminal portion of the main breaker 1.
バーホルダ５は、図２に示すように、バーホルダ本体６と、バーホルダ本体６に着脱可能な隔壁７から構成されている。バーホルダ本体６は、配電盤等の筐体の取付板にねじにより固定されている。 As shown in FIG. 2, the bar holder 5 includes a bar holder main body 6 and a partition wall 7 that can be attached to and detached from the bar holder main body 6. The bar holder body 6 is fixed to a mounting plate of a housing such as a switchboard with screws.
バーホルダ本体６は、母線バー２を支持する母線バー支持部８を備え、母線バー支持部８の高さ位置は、一端を主幹ブレーカ１に接続された母線バー２下面の高さ位置に対応するように構成されている。異なる母線バーの板厚に対応する手段として、必要に応じてスペーサを取り付け、母線バー支持部８の高さを変更することもできる。 The bar holder main body 6 includes a bus bar support portion 8 that supports the bus bar 2, and the height position of the bus bar support portion 8 corresponds to the height position of the lower surface of the bus bar 2 connected to the main breaker 1 at one end. It is configured as follows. As a means corresponding to the thickness of the different bus bar, a spacer can be attached if necessary, and the height of the bus bar support portion 8 can be changed.
母線バー支持部８は、図２および図４に示すように、各相の母線バー支持部８の間に形成された凹溝１２を備え、該凹溝１２に形成された母線バー固定部１３とナット収納部１４とを備えている。 As shown in FIGS. 2 and 4, the bus bar support portion 8 includes concave grooves 12 formed between the bus bar support portions 8 of each phase, and the bus bar fixing portion 13 formed in the concave groove 12. And a nut storage portion 14.
該母線バー固定部１３では、母線バー２とバーホルダ本体６とを位置合わせした後、固定ねじ１５を挿入することにより、図１に示すように母線バー２とバーホルダ本体６とを固定することができる。 In the bus bar fixing portion 13, the bus bar 2 and the bar holder body 6 can be fixed as shown in FIG. 1 by inserting the fixing screw 15 after aligning the bus bar 2 and the bar holder body 6. it can.
ナット収納部１４は、母線バー２と母線バーの長手方向から引き出される幹線ケーブル１６との接続に使用される。幹線ケーブル１６は、図１に示すように、圧着端子１７で母線バーに接続され、ナット収納部１４に収納したナットと、幹線ケーブル１６の圧着端子１７に挿通するボルト１８との組み合わせにより、バーホルダ本体６に固定することができる。 The nut storage portion 14 is used for connection between the bus bar 2 and the trunk cable 16 drawn from the longitudinal direction of the bus bar. As shown in FIG. 1, the trunk cable 16 is connected to the bus bar by a crimping terminal 17, and is combined with a nut housed in the nut housing portion 14 and a bolt 18 inserted into the crimping terminal 17 of the trunk cable 16. It can be fixed to the main body 6.
図２および図４に示すように、バーホルダ本体６の内部には、隣接する母線バー支持部８間に、バーホルダ固定孔１９と隔壁固定孔２０とが形成されている。 As shown in FIGS. 2 and 4, a bar holder fixing hole 19 and a partition fixing hole 20 are formed in the bar holder body 6 between the adjacent bus bar support portions 8.
バーホルダ固定孔１９は、バーホルダ本体６を上下方向に貫通して形成されている。該バーホルダ固定孔１９と、筐体に設置された取付板に形成されたねじ孔部とを位置合わせした後、バーホルダ本体６側から固定ねじを挿入することにより、筐体に設置された取付板にバーホルダ本体６を固定することができる。 The bar holder fixing hole 19 is formed so as to penetrate the bar holder body 6 in the vertical direction. After aligning the bar holder fixing hole 19 and the screw hole formed in the mounting plate installed in the housing, the mounting plate installed in the housing is inserted by inserting a fixing screw from the bar holder body 6 side. The bar holder main body 6 can be fixed to.
隔壁固定孔２０は、隣接する母線バー支持部８間に形成された凹部からなり、隔壁７の固定に使用される。 The partition fixing hole 20 is formed of a recess formed between adjacent bus bar support portions 8 and is used for fixing the partition 7.
図２に示すように、隔壁７は、細壁部２６に、隔壁本体を貫通する隔壁固定ねじ着脱用貫通孔２１と、母線バー２の上部を覆う母線バー保護カバーを固定するための固定孔２７が形成された構造を有している。 As shown in FIG. 2, the partition wall 7 has a fixed hole for fixing a partition wall fixing screw attaching / detaching through hole 21 that penetrates the partition wall body and a bus bar protection cover that covers the top of the bus bar 2 to the narrow wall portion 26. 27 is formed.
隔壁７をバーホルダ本体６に取り付ける際には、隔壁固定孔２０と隔壁固定ねじ着脱用貫通孔２１とを位置合わせした後、隔壁固定ねじ着脱用貫通孔２１の上方から隔壁固定ねじ２２を挿通することにより、隔壁７とバーホルダ本体６とを固定することができる。 When the partition wall 7 is attached to the bar holder body 6, the partition wall fixing hole 20 and the partition wall fixing screw attaching / detaching through hole 21 are aligned, and then the partition wall fixing screw 22 is inserted from above the partition wall fixing screw attaching / detaching through hole 21. Thus, the partition wall 7 and the bar holder body 6 can be fixed.
隔壁固定ねじ着脱用貫通孔２１の下端部には突出孔部２３が形成されている。図３に示すように、バーホルダ本体６には、該突出孔部２３と嵌合する形状の凹部２４が形成されており、突出孔部２３と凹部２４との嵌合構造により、隔壁７とバーホルダ本体６とを、より安定的に固定可能としている。 A protruding hole 23 is formed at the lower end of the partition fixing screw attaching / detaching through hole 21. As shown in FIG. 3, the bar holder body 6 is formed with a recess 24 having a shape that fits into the projecting hole 23, and the partition 7 and the bar holder are formed by the fitting structure of the projecting hole 23 and the recess 24. The main body 6 can be fixed more stably.
隔壁７とバーホルダ本体６とを、更に安定的に固定する手段として、隔壁７には、バーホルダ本体６を貫通して形成されたバーホルダ固定孔１９の上端部に嵌入される係止突起２５を形成している。なお、係止突起２５は突出孔部２３より突出させた形状となっているものである。 As a means for fixing the partition wall 7 and the bar holder body 6 more stably, the partition wall 7 is formed with a locking projection 25 fitted into the upper end portion of the bar holder fixing hole 19 formed through the bar holder body 6. is doing. The locking projection 25 has a shape protruding from the protruding hole 23.
これらの構造は不意の外力、特に圧着端子の締付作業時に働く外力に対して有効であり、隔壁７とバーホルダ本体６との固定状態を安定的に維持することができる。 These structures are effective against an unexpected external force, particularly an external force that acts during the fastening operation of the crimp terminal, and can stably maintain the fixed state between the partition wall 7 and the bar holder body 6.
図５に示すように、隔壁固定ねじ着脱用貫通孔２１は、配電盤内で主幹ブレーカ１側に向けて配置することが好ましい。隔壁７本体を貫通して形成された隔壁固定ねじ着脱用貫通２１孔は、隔壁固定ねじ２２が貫通できる口径を確保するため、口孔が大きくなり、母線バーの端部に圧着端子を介して幹線ケーブルを接続する場合には、該圧着端子と隔壁が干渉するために圧着端子のサイズを小さくする必要があるが該隔壁固定ねじ着脱用貫通孔を、配電盤内で主幹ブレーカ側に向けて配置する構成により、圧着端子のサイズを変更することなく当該干渉の問題を効果的に回避することができる。 As shown in FIG. 5, it is preferable that the partition fixing screw attaching / detaching through-hole 21 is arranged in the switchboard toward the main breaker 1 side. The through-hole 21 for attaching / detaching the partition fixing screw formed through the main body of the partition 7 is large in order to secure a diameter through which the partition fixing screw 22 can pass, and the end of the bus bar is connected via a crimp terminal. When connecting a trunk cable, it is necessary to reduce the size of the crimp terminal because the crimp terminal and the partition interfere with each other, but the through hole for attaching / detaching the partition fixing screw is arranged toward the main breaker side in the switchboard With this configuration, it is possible to effectively avoid the interference problem without changing the size of the crimp terminal.
隔壁７の上面１０は、主幹ブレーカ１の端子カバー取付面９と同一高さに形成され、該隔壁７の上面１０と端子カバー取付面９とに、保護カバー（図示しない）を渡して設け、主幹ブレーカ１の端子部と母線バー２とを同時に被覆することができる。また、隔壁７の上側面部には、溝部１１が形成されており、大型の圧着端子が接続された場合等で各母線バー２間を物理的に絶縁する絶縁壁を設ける場合に、該溝部１１に絶縁壁の端部を引掛けて設置することができる。 The upper surface 10 of the partition wall 7 is formed at the same height as the terminal cover mounting surface 9 of the main breaker 1, and a protective cover (not shown) is provided between the upper surface 10 of the partition wall 7 and the terminal cover mounting surface 9. The terminal portion of the main breaker 1 and the bus bar 2 can be covered at the same time. Further, a groove portion 11 is formed on the upper side surface portion of the partition wall 7, and this groove portion is provided when an insulating wall that physically insulates each bus bar 2 is provided when a large crimp terminal is connected. 11 can be installed by hooking the end of the insulating wall.
また、このようなバーホルダ５においては母線バー２の端部に設けるような構造だけでなく、隔壁７を分離可能に形成することにより、隔壁７を取り外したバーホルダ５を母線バー２の中間に設置する支えとしても利用可能にできるものである。 Further, in such a bar holder 5, not only the structure provided at the end of the bus bar 2 but also the partition 7 is formed so as to be separable so that the bar holder 5 from which the partition 7 is removed is installed in the middle of the bus bar 2. It can also be used as a support.
１ 主幹ブレーカ
２ 母線バー
３ バーホルダ
４ 隔壁
５ バーホルダ
６ バーホルダ本体
７ 隔壁
８ 母線バー支持部
９ 端子カバー取付面
１０ 隔壁の上面
１１ 溝部
１２ 凹溝
１３ 母線バー固定部
１４ ナット収納部
１５ 固定ねじ
１６ 幹線ケーブル
１７ 圧着端子
１８ ボルト
１９ バーホルダ固定孔
２０ 隔壁固定孔
２１ 隔壁固定ねじ着脱用貫通孔
２２ 隔壁固定ねじ
２３ 突出孔部
２４ 凹部
２５ 係止突起
２６ 細壁部
２７ 固定孔
DESCRIPTION OF SYMBOLS 1 Main breaker 2 Bus bar 3 Bar holder 4 Bulkhead 5 Bar holder 6 Bar holder main body 7 Bulkhead 8 Busbar bar support part 9 Terminal cover mounting surface 10 Bulkhead upper surface 11 Groove part 12 Groove part 13 Busbar bar fixing part 14 Nut accommodating part 15 Fixing screw 16 Main line Cable 17 Crimping terminal 18 Bolt 19 Bar holder fixing hole 20 Bulkhead fixing hole 21 Through hole 22 for attaching / detaching the bulkhead fixing screw Bulkhead fixing screw 23 Projection hole 24 Recess 25 Locking protrusion 26 Thin wall 27 Fixed hole
Claims (2)
該バーホルダは、該母線バーを支持する複数の母線バー支持部を備えるバーホルダ本体と、隣接する母線バー支持部の間に着脱自在に設けた隔壁からなり、
バーホルダ本体は、該バーホルダ本体を配電盤内にねじ固定するバーホルダ固定孔と、隔壁とバーホルダ本体の固定時に隔壁固定ねじが挿入される隔壁固定孔を備え、
隔壁は、バーホルダ本体を貫通して形成された該バーホルダ固定孔の上端部に嵌入される係止突起を備えることを特徴とするバーホルダ。 A bar holder that supports the other end side of the plurality of bus bars connected to the main breaker in the switchboard,
The bar holder includes a bar holder body including a plurality of bus bar support portions for supporting the bus bar, and a partition wall provided detachably between adjacent bus bar support portions,
The bar holder body includes a bar holder fixing hole for fixing the bar holder body in the switchboard, and a partition fixing hole into which the partition fixing screw is inserted when the partition wall and the bar holder body are fixed.
The partition wall is provided with a locking projection fitted into an upper end portion of the bar holder fixing hole formed through the bar holder body.
該隔壁固定ねじ着脱用貫通孔は、配電盤内で主幹ブレーカ側に向けて配置され、
係止突起は、母線バーの他端側に向けて配置されることを特徴とするバーホルダ。 The partition wall has a partition wall fixing screw detachable through hole formed through the partition wall body,
The through hole for attaching / detaching the partition wall fixing screw is arranged toward the main breaker side in the switchboard,
The bar protrusion characterized in that the locking protrusion is arranged toward the other end side of the bus bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011049981A JP5720039B2 (en) | 2011-03-08 | 2011-03-08 | Bar holder |
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| JP2011049981A JP5720039B2 (en) | 2011-03-08 | 2011-03-08 | Bar holder |
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| Publication Number | Publication Date |
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| JP2012186971A true JP2012186971A (en) | 2012-09-27 |
| JP5720039B2 JP5720039B2 (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015012696A (en) * | 2013-06-28 | 2015-01-19 | 日東工業株式会社 | Bar holder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162205U (en) * | 1985-03-29 | 1986-10-07 | ||
| WO2006007913A1 (en) * | 2004-07-19 | 2006-01-26 | Rittal Gmbh & Co. Kg | Bus bar support |
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2011
- 2011-03-08 JP JP2011049981A patent/JP5720039B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162205U (en) * | 1985-03-29 | 1986-10-07 | ||
| WO2006007913A1 (en) * | 2004-07-19 | 2006-01-26 | Rittal Gmbh & Co. Kg | Bus bar support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015012696A (en) * | 2013-06-28 | 2015-01-19 | 日東工業株式会社 | Bar holder |
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| JP5720039B2 (en) | 2015-05-20 |
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