JPH0743859Y2 - Lifting device for lighting equipment - Google Patents
Lifting device for lighting equipmentInfo
- Publication number
- JPH0743859Y2 JPH0743859Y2 JP1989060762U JP6076289U JPH0743859Y2 JP H0743859 Y2 JPH0743859 Y2 JP H0743859Y2 JP 1989060762 U JP1989060762 U JP 1989060762U JP 6076289 U JP6076289 U JP 6076289U JP H0743859 Y2 JPH0743859 Y2 JP H0743859Y2
- Authority
- JP
- Japan
- Prior art keywords
- lifting
- lowering
- main body
- mounting base
- lifting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は主として電動式により照明器具等を天井にセッ
トするための昇降装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to an elevating device for electrically setting a lighting fixture or the like on a ceiling.
（従来の技術） 従来、この種昇降装置としては、第４図に示すように照
明器具のような電気器具20を取付けた昇降体21と、昇降
体21を吊設するワイヤロープ22を巻取ル巻取り手段23を
有する昇降装置本体24で構成され、昇降体上面に設けた
電源端子Ｂを昇降装置本体24下面に設けた電源接点Ａに
接触させることで昇降装置本体24から昇降体21の電気器
具20を作動させる電源Ｓを供給するようにした昇降装置
において、昇降装置本体24の下面にアース線に接続され
た接点25を設け、電源端子Ａが電源接点Ｂに接触したと
き、該アース接点25が昇降体21のハウジングに弾接する
ようにしたものである（例えば実公昭63−10583号公報
参照）。(Prior Art) Conventionally, as this type of lifting device, as shown in FIG. 4, a lifting body 21 to which an electric appliance 20 such as a lighting fixture is attached, and a wire rope 22 for suspending the lifting body 21 are wound up. The lifting device body 24 is provided with a winding means 23, and the power supply terminal B provided on the upper surface of the lifting device body is brought into contact with the power supply contact A provided on the lower surface of the lifting device body 24. In the lifting device adapted to supply the power S for operating the electric appliance 20, a contact 25 connected to a ground wire is provided on the lower surface of the lifting device body 24, and when the power supply terminal A contacts the power supply contact B, the grounding is performed. The contact 25 is adapted to elastically contact the housing of the lifting body 21 (see, for example, Japanese Utility Model Publication No. 63-10583).
（考案が解決しようとする課題） しかしながら、従来の構成では、昇降体及び昇降装置本
体ともに特別のアース部品を設ける必要があるので、そ
れだけ加工点数も増え複雑になるという問題を有してい
た。(Problems to be Solved by the Invention) However, in the conventional configuration, since it is necessary to provide a special ground component for both the lifting body and the lifting device body, there is a problem in that the number of processing points increases and becomes complicated.
本考案は、従来の技術の有する問題点に鑑みてなされた
もので、その目的とするところは、特にアース部品を設
けなくても安定的にアースがとれるようにした昇降装置
を提供するものである。The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a lifting device capable of stably grounding without providing a grounding component. is there.
（課題を解決するための手段） 上記目的を達成するために、本考案における昇降装置
は、天井に取付けられた昇降装置本体にワイヤを巻取る
巻取装置と、昇降装置本体下部にワイヤにより上昇・下
降する照明器具等を吊下した昇降体を設け、昇降体の上
部中央に設けたロック棒を、本体側の取付台に設けた案
内筒に挿入してストッパで保持できるようにした昇降装
置において、昇降装置本体の下側に取付けた取付台に対
をなす照明器具等への電源端子を設け、この電源端子に
対応して電源接点を取付けた接点プレートを昇降体の上
面にスプリングにより接点プレートを上方に押し上げる
よう付勢し、その荷重は昇降体が上昇停止した状態で、
前記取付台に設けた案内筒のロック棒出口に前記接点プ
レートが押し付けられてアースが安定的にとれるように
したものである。(Means for Solving the Problems) In order to achieve the above object, the lifting device according to the present invention comprises a winding device that winds a wire around the lifting device body mounted on a ceiling, and a lifting device that lifts the wire to the lower part of the lifting device body.・ An elevating device that is equipped with an elevating body that hangs down lighting fixtures, etc., and a lock rod provided at the center of the upper part of the elevating body can be inserted into a guide tube provided on the mounting base on the main body side and held by a stopper. In this case, a power supply terminal for a lighting fixture, etc., which is paired with a mounting base mounted on the lower side of the lifting device main body, is provided, and a contact plate with a power supply contact corresponding to this power supply terminal is attached to the upper surface of the lifting body by a spring contact. Energize the plate to push it upwards, and its load is when the lifting body stops rising,
The contact plate is pressed against the lock rod outlet of the guide cylinder provided on the mount so that the ground can be stably obtained.
（作用） このように昇降体が上昇停止した状態では、昇降装置本
体に取付けた取付台のロック棒出入口端と、昇降体に取
付けた接点プレートとは押し付けられて接触しているた
め、特別にアース部品を設けなくても昇降体に発生した
地絡電流は昇降装置本体の取付台よりアースへ流れるか
らワイヤが地絡電流によって溶断されることはない。(Operation) When the lifting body stops rising in this way, the lock bar inlet / outlet end of the mounting base mounted on the lifting / lowering device body and the contact plate mounted on the lifting body are pressed and contact with each other. Even if the ground component is not provided, the ground fault current generated in the lifting body flows from the mounting base of the lifting device body to the ground, so that the wire is not blown by the ground fault current.
（実施例） 以下本考案の一実施例を図面により詳細に説明する。Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図は本考案の照明器具を取り除いた引き上げ状態の
昇降装置を示す縦断正面図、第２図は同じく一部切欠側
面図、第３図は要部の拡大正面図である。図に示すよう
に、昇降装置本体１は建物の構造体、例えば天井内にボ
ルト等で水平に取付けられており、モータやワイヤ巻取
ドラム1a等の巻取装置が設けられている。２は昇降体で
ローラ3aを介して昇降装置本体１の中央下面にワイヤ３
で吊り上げられているが、昇降体２の上部中央にはロッ
ク棒４が上方へ突出して設けられている。このロック棒
４は円錐状の頭部4aと棒状の頸部4aを有し、頸部4bには
上下に一定間隔だけ摺動可能で、頭部4aの外径とほぼ外
径のスリーブ4cが取付けられている。また、昇降装置本
体１には上記ロック棒４と相対する位置に取付台５が下
向きに固定され、取付台５にはロック棒４が出入りでき
るようにした案内筒６が一体に設けられ、その根元にロ
ック棒４を保持又は解除できるよう端部の上面が平面で
下部が斜面を有するストッパ７がスプリング８により常
時ロック棒４を挟持できるように付勢されている。また
ストッパ７は昇降体２が上昇停止した状態で、スプリン
グ８（第３図参照）によりロック棒４の頸部4bを挾持し
てストッパ７の上部平面で頭部4aを保持し、昇降体２を
下降せしめるときは、一度昇降体２を上昇せしめスリー
ブ4cによりストッパの下部斜面を広げ、そのまま下降せ
しめると、スリーブ4cは頭部4aと接した状態で下がるの
で、ストッパ７は広げられたままになり昇降体２はその
まま下降し続ける。なお、昇降装置本体１の取付台５の
上部にはスイッチボックス９が取付けられ、前記ロック
棒４によって上下に制御されるスライダ10がリミットス
イッチ11群を動作させて、自動的に昇降体２を上下させ
る。その詳細は同日出願の実用新案登録願（Ａ）に詳述
しており、本考案の要旨でないので省略する。FIG. 1 is a vertical sectional front view showing an elevating device in a pulled-up state in which the lighting fixture of the present invention is removed, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is an enlarged front view of a main part. As shown in the figure, the lifting / lowering device main body 1 is horizontally mounted inside a building structure, for example, a ceiling by bolts or the like, and is provided with a winding device such as a motor or a wire winding drum 1a. Reference numeral 2 denotes an elevating body, and a wire 3 is provided on the lower surface of the center of the elevating device body 1 via a roller 3a.
The lock bar 4 is provided at the center of the upper part of the lifting body 2 so as to project upward. This lock rod 4 has a conical head 4a and a rod-shaped neck 4a, and is slidable vertically on the neck 4b at a constant interval. A sleeve 4c having an outer diameter substantially equal to the outer diameter of the head 4a is provided. Installed. Further, a mounting base 5 is fixed downward at a position facing the lock rod 4 in the lifting / lowering device main body 1, and a guide tube 6 for allowing the lock rod 4 to come in and out is integrally provided on the mounting base 5, and In order to hold or release the lock bar 4 at the base, a stopper 7 having a flat upper surface at the end and an inclined surface at the lower end is urged by a spring 8 so that the lock bar 4 can be always held. Further, the stopper 7 holds the head 4a on the upper plane of the stopper 7 by holding the neck 4b of the lock rod 4 with the spring 8 (see FIG. 3) while the elevator 2 is stopped rising. When lowering, the lifting body 2 is raised once and the lower slope of the stopper is expanded by the sleeve 4c, and when it is lowered as it is, the sleeve 4c lowers in contact with the head 4a, so the stopper 7 remains expanded. The elevating body 2 continues to descend. A switch box 9 is attached to the upper part of the mounting base 5 of the lifting / lowering device main body 1, and a slider 10 vertically controlled by the lock rod 4 operates a limit switch 11 group to automatically move the lifting / lowering body 2 up and down. Move it up and down. Details thereof are described in the utility model registration application (A) filed on the same day, and are omitted because they are not the gist of the present invention.
以上のような構成において、第２図に示すように昇降体
２に吊下した照明器具等への電力供給は取付台５側に取
付けた電源接点A1，A2（図ではA1のみ示す）に対して昇
降体２の上部に設けられた接点プレート12に電源端子
B1，B2（図ではB1のみ示す）を取付け、この接点プレー
ト12をスプリング13によって上方にガイドポスト12aを
介して付勢し、電源接点A1，A2に圧着せしめる。その荷
重は昇降体２が上昇停止時、接点プレート12が本体１側
に取付けた案内筒６のロック棒出入口に圧着するように
作動させる。勿論、取付台５と案内筒６及び接点プレー
ト12は導電性材料を用いて昇降体２に生じた短絡電流を
昇降体２より本体１側へ電流が流れるようにしておくこ
とは当然で、本体１は接地せしめておく。図中14は照明
器具用コードを示す。In the above-mentioned configuration, as shown in FIG. 2, the power supply to the lighting fixtures hung on the lifting body 2 is connected to the power supply contacts A 1 and A 2 (only A 1 is shown in the figure) mounted on the mounting base 5 side. ) To the contact plate 12 provided on the upper part of the lifting body 2
B 1 and B 2 (only B 1 is shown in the figure) are attached, and the contact plate 12 is urged upward by the spring 13 via the guide post 12a to be crimped to the power supply contacts A 1 and A 2 . The load is operated so that the contact plate 12 is pressure-bonded to the lock rod entrance / exit of the guide tube 6 mounted on the main body 1 side when the lifting / lowering body 2 stops rising. Of course, the mounting base 5, the guide tube 6 and the contact plate 12 are made of a conductive material so that the short-circuit current generated in the lifting body 2 can flow from the lifting body 2 to the main body 1 side. Keep 1 grounded. Reference numeral 14 in the figure denotes a lighting equipment cord.
以上のように構成すると、昇降体2,昇降装置本体１共に
特別のアース部品を使用しなくても昇降体２に電源ACの
非接地側が接触して地絡事故が発生しても、地絡電流で
ワイヤ３を介して流れる電流は殆んどなく、昇降装置本
体１を介してアースされる。また、室内競技場等におけ
る照明器具等にボール等が衝突した場合、昇降体２が傾
動し、電源接点A1，A2と電源端子B1，B2の接触が不安定
になることがあっても、接点プレート12がスプリング13
によって本体側の取付台５を押し付けているから、昇降
体２が傾動しても接点プレート12は動かず接触による導
通は常に安定となる。又このような構造上、元来、接点
A1，B1が数対あったとしても平行に同時に接触させるこ
とができる。With the above-described configuration, even if the lifting body 2 and the lifting / lowering device body 1 do not use special grounding parts, even if the lifting / lowering body 2 comes into contact with the ungrounded side of the power supply AC and a ground fault occurs, a ground fault occurs. There is almost no current flowing through the wire 3 and it is grounded via the lifting / lowering device main body 1. In addition, when a ball hits a lighting fixture in an indoor stadium, etc., the lifting body 2 may tilt and the contact between the power contacts A 1 , A 2 and the power terminals B 1 , B 2 may become unstable. However, the contact plate 12
Since the mounting base 5 on the main body side is pressed by the contact plate 12, the contact plate 12 does not move even when the lifting / lowering body 2 tilts, and the conduction by contact is always stable. Also, due to this structure, the contact point is originally
A 1, B 1 can be contacted in parallel at the same time even if there several pairs.
（考案の効果） 本考案は、昇降体が上昇停止した状態で、電源端子を取
付けた接点プレートがスプリングによって取付台のロッ
ク棒出入口に押し付けられているので、昇降体、本体側
共に特別のアース部品を使用しなくても安定したアース
がとれ、その上、接点A,Bはスプリングにより接触して
いるが、例えば照明器具に何かが当って昇降体が傾動
し、接触が不安定になることがあっても接点プレートが
本体側の取付台に押しつけられているから、接点プレー
トは動かずにいる従って接触導通が常に安定である等の
効果がある。(Effect of the Invention) In the present invention, since the contact plate to which the power supply terminal is attached is pressed against the lock rod inlet / outlet of the mounting base by the spring in a state where the lifting / lowering body is lifted and stopped, both the lifting / lowering body and the main body side have a special ground. A stable ground can be obtained without using any parts, and the contacts A and B are in contact with each other by a spring. For example, if something hits the lighting fixture, the elevator body tilts and the contact becomes unstable. However, since the contact plate is pressed against the mounting base on the main body side, the contact plate does not move, so that contact conduction is always stable.
第１図は本考案昇降装置の一実施例を示す照明器具を取
り除いた引き上げ状態を示す縦断正面図、第２図は同じ
く一部切欠側面図、第３図は要部の拡大正面図、第４図
は従来例の概略構成図である。 １…昇降装置本体、２…昇降体、３…ワイヤ、４…ロッ
ク棒、５…取付台、６…案内筒、７…ストッパ、８…ス
プリング、９…スイッチボックス、10…スライダ、11…
リミットスイッチ、12…接点プレート、13…スプリン
グ、14…照明器具用コードFIG. 1 is a vertical sectional front view showing a state in which a lighting fixture is removed showing an embodiment of a lifting device of the present invention, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is an enlarged front view of an essential part. FIG. 4 is a schematic configuration diagram of a conventional example. 1 ... Lifting device main body, 2 ... Lifting body, 3 ... Wire, 4 ... Lock rod, 5 ... Mounting base, 6 ... Guide tube, 7 ... Stopper, 8 ... Spring, 9 ... Switch box, 10 ... Slider, 11 ...
Limit switch, 12 ... Contact plate, 13 ... Spring, 14 ... Light fixture cord
───────────────────────────────────────────────────── フロントページの続き (72)考案者 井上 博文 埼玉県行田市壱里山町１番１号 岩崎電気 株式会社埼玉製作所内 (56)参考文献 実開 昭60−60820（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hirofumi Inoue 1-1 Ichiriyama-cho, Gyoda-shi, Saitama Iwasaki Electric Co., Ltd. Saitama Manufacturing Co., Ltd. (56) Bibliography 60-60820
Claims (1)
巻取る巻取装置と、昇降装置本体下部にワイヤにより上
昇・下降する照明器具等を吊下した昇降体を設け、昇降
体の上部中央に設けたロック棒を、本体側の取付台に設
けた案内筒に挿入してストッパで保持できるようにした
昇降装置において、昇降装置本体の下側に取付けた取付
台に対をなす照明器具等の電源端子を設け、この電源端
子に対応して電源接点を取付けた接点プレートを昇降体
の上面にスプリングにより接点プレートを上方に押し上
げるよう付勢し、その荷重は昇降体が上昇停止した状態
で、前記取付台に設けた案内筒のロック棒出入口に前記
接点プレートが圧着するよう作動し、前記昇降体に生じ
る短絡電流を前記昇降装置本体を介してアースに流すア
ース回路が形成され、アースが安定的にとれるようにし
た照明器具等の昇降装置。1. A winding device for winding a wire on a lifting / lowering device main body mounted on a ceiling, and an elevating / lowering body for suspending a lighting fixture or the like which is lifted / lowered by the wire at the lower part of the lifting / lowering device main body, and an upper / lower part of the lifting / lowering body. In a lifting device in which a lock rod provided at the center is inserted into a guide tube provided on a mounting base on the main body side and can be held by a stopper, a lighting fixture paired with a mounting base mounted on the lower side of the lifting device main body. A power supply terminal such as is provided, and a contact plate corresponding to the power supply terminal is attached to the upper surface of the lifting body by a spring so as to push the contact plate upward, and the load is in a state where the lifting body stops rising. Then, the contact plate is operated so as to be crimped to the lock bar entrance / exit of the guide cylinder provided on the mounting base, and a ground circuit is formed to flow a short-circuit current generated in the lifting body to the ground through the lifting device body. , Grounding lifting device such as a luminaire as take stably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060762U JPH0743859Y2 (en) | 1989-05-25 | 1989-05-25 | Lifting device for lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060762U JPH0743859Y2 (en) | 1989-05-25 | 1989-05-25 | Lifting device for lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150710U JPH02150710U (en) | 1990-12-27 |
| JPH0743859Y2 true JPH0743859Y2 (en) | 1995-10-09 |
Family
ID=31588409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989060762U Expired - Fee Related JPH0743859Y2 (en) | 1989-05-25 | 1989-05-25 | Lifting device for lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743859Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6060820U (en) * | 1983-09-10 | 1985-04-27 | 松下電工株式会社 | lift device |
-
1989
- 1989-05-25 JP JP1989060762U patent/JPH0743859Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02150710U (en) | 1990-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |