JP2012229069A

JP2012229069A - Telescopic column

Info

Publication number: JP2012229069A
Application number: JP2011096992A
Authority: JP
Inventors: Koichi Kaneko; 幸一金子; Eiji Hamashima; 英治浜島; Mitsuhiro Tsuruta; 光浩鶴田; Nagayo Kobayashi; 永世小林
Original assignee: SHONAN KOSAKUSHO KK
Current assignee: SHONAN KOSAKUSHO KK
Priority date: 2011-04-25
Filing date: 2011-04-25
Publication date: 2012-11-22
Anticipated expiration: 2031-04-25
Also published as: JP5938851B2

Abstract

PROBLEM TO BE SOLVED: To provide a telescopic device that includes a means for supplying electric power/transmitting signals within a telescopic column toward the uppermost illumination device or other devices, and allows a smooth upward/downward movement.SOLUTION: The devices are achieved by having a component to become an electric conductor throughout a space between an outer casing and an inner cylinder inside a telescopic column, from the lowermost part to the uppermost part. The electric conductor has an extendable/retractable structure in accordance with the upward/downward movement of the telescopic column. Provided that the electric conductor itself can extend/retract in the same manner as the telescopic column does, instead of an electric wire or the like which is difficult to retract due to loosening and entanglement occurred as it goes down. Further, one or more of the electric conductors are mounted for supplying the electric power and transmitting the signals.

Description

本発明は、照明装置またはその他の装置を、多段式伸縮柱の最上部に設置して、任意の高さに昇降させる伸縮装置に関する。 The present invention relates to a telescopic device in which an illuminating device or other device is installed at the uppermost part of a multistage telescopic column and moved up and down to an arbitrary height.

従来の油圧式伸縮柱は、実用新案第２５４６７９３号に記載されているように、各段には外殻となる外筒とその内部に内筒があり、内筒に圧油を供給・排出して伸縮柱を上昇・下降させる機構が知られている。これを従来例として図１に示す。 As described in Utility Model No. 2546793, a conventional hydraulic telescopic column has an outer cylinder that forms an outer shell and an inner cylinder inside thereof, and supplies and discharges pressure oil to and from the inner cylinder. A mechanism for raising and lowering the telescopic column is known. This is shown in FIG. 1 as a conventional example.

図１は、伸縮柱１の縦断面図で、この場合は最上段５ａの上部に照明装置２が取付けられている。伸縮柱１には最上段５ａと基部（最下段）５ｂを含む各段５の各々に、外筒３の内部中央に内筒４がある構造で、最上段５ａから基部（最下段）５ｂの各段５の内筒４で形成される閉じられた空間に、最下段の固定された基部（最下段）５ｂより、圧油を供給口７から供給することで、その上にある最上段５ａと各段５が上昇し、圧油を排出することで、最上段５ａと各段５が下降する構造となっている。 FIG. 1 is a longitudinal sectional view of the telescopic column 1, and in this case, the lighting device 2 is attached to the upper part of the uppermost stage 5a. The telescopic column 1 has a structure in which each of the stages 5 including the uppermost stage 5a and the base part (lowermost stage) 5b has an inner cylinder 4 in the inner center of the outer cylinder 3, and the upper part 5a to the base part (lowermost stage) 5b. By supplying pressurized oil from a supply port 7 to a closed space formed by the inner cylinder 4 of each stage 5 from a fixed base (lowermost stage) 5b at the lowermost stage, the uppermost stage 5a above it is supplied. As each stage 5 rises and the pressure oil is discharged, the uppermost stage 5a and each stage 5 are lowered.

この場合に最上部に取付けられた照明装置２には、給電等のために電線６が設けられており、伸縮柱１の伸縮により照明装置２も昇降する、このため電線６も照明装置２から吊られた状態で引き回されていた。また、この照明装置２自体も旋回する構造なので、それらの動き全てを考慮して、伸縮時に電線６が円滑に引き回すことが出来るように設置されていた。 In this case, the illuminating device 2 attached to the uppermost portion is provided with an electric wire 6 for power supply and the like, and the illuminating device 2 is also moved up and down by the expansion and contraction of the telescopic column 1. It was drawn around in a suspended state. Moreover, since this illuminating device 2 itself is also a structure which turns, considering all those movements, it was installed so that the electric wire 6 could be smoothly drawn around at the time of expansion / contraction.

実用新案登録第２５４６７９３号Utility model registration No. 2546793

これらの伸縮柱は、次のような改善すべき課題があった。
一般に伸縮柱においては、最上部に取付けられた照明装置またはその他の装置への給電・信号伝達などについて、全く考慮されていなかった。それらは伸縮柱とは無関係に、最上部の装置に電線が設けられ、伸縮柱による装置の昇降に対し、電線が吊られて動く状態であった。したがって、電線は、伸縮柱の最上昇時の長さ以上が必要であるとともに、最下降した状態で弛む分を、例えば伸縮柱を中心に弛めに巻いて置いておくために、十分で最小の範囲を確保して置かなくてはならない欠点があった。さらに、伸縮柱最上部の装置自体が旋回・ふ仰の駆動もするので、それも含めて、伸縮による電線の動きが円滑にできるよう、電線長さや引き回しに十分配慮しなければならない欠点もあった。 These telescopic columns had the following problems to be improved.
In general, in the telescopic column, no consideration has been given to power supply and signal transmission to a lighting device or other device attached to the top. They had an electric wire in the uppermost device irrespective of the telescopic column, and the electric wire was suspended and moved in response to the lifting and lowering of the device by the telescopic column. Therefore, the electric wire needs to be longer than the length when the telescopic column is at the highest position, and is sufficient and minimum to keep the portion that sags in the lowest state, for example, loosely wound around the telescopic column. However, there was a drawback that had to be secured. In addition, since the device at the top of the telescopic column itself also turns and lifts, there is also a drawback that it is necessary to give sufficient consideration to the length and routing of the wire so that the wire can move smoothly due to expansion and contraction. It was.

このとき容易に考えられる方法として、伸縮柱内部に電線を通す方法があるが、最上昇した場合に最長となる電線長さに対して、最下降した場合に弛む分の電線長さの処置方法が問題となる欠点があり、例えばこの弛む分の電線を巻き取るには、別にそのための装置を設けなくてはならない欠点もあった。また油圧式の伸縮柱は中央に圧油が満たされる空間があり、これを避けて電線を伸縮時に弛んだり引っかかったりしないで円滑に動くよう配線することは、極めて困難であるという欠点もあった。 As an easily conceivable method at this time, there is a method of passing an electric wire inside the telescopic column, but a method of treating the length of the wire that is slackened when it is lowered to the longest wire length when it is highest However, for example, in order to wind up the slackened wire, there is a disadvantage that a separate device must be provided. Also, the hydraulic telescopic column has a space filled with pressure oil in the center, and it is extremely difficult to avoid this and to wire the wire smoothly so that it does not loosen or get caught during expansion and contraction. .

本発明の目的は、最上部の照明装置またはその他の装置に対して、給電・信号伝達する手段を伸縮柱の内部に設け、円滑な昇降動作が可能な伸縮装置を提供することにある。 An object of the present invention is to provide a telescopic device capable of smoothly moving up and down by providing a means for supplying power and transmitting signals to the uppermost lighting device or other device inside the telescopic column.

伸縮柱内部の外筒と内筒との間の空間の最下段から最上段に亘り、導電体となる部品を設けることで達成する。導電体は、伸縮柱の上昇・下降の動きに連動して、伸縮可能な構造とすることで達成する。ただし、下降していくに従って弛んだり引っかかったりして、格納に困難が生じる電線等ではなく、導電体自体が伸縮柱と同様に、伸縮できる構造にすることで達成する。さらに、この導電体は、給電や信号の伝達のために、１本以上設けることで達成できるのである。 This is achieved by providing a part that becomes a conductor from the lowest level to the highest level of the space between the outer cylinder and the inner cylinder inside the telescopic column. The electric conductor is achieved by adopting a structure that can be expanded and contracted in conjunction with the upward and downward movement of the telescopic column. However, this is achieved by adopting a structure in which the conductor itself can be expanded and contracted in the same manner as the telescopic column, rather than an electric wire or the like that becomes difficult to store by being loosened or caught as it descends. Furthermore, this conductor can be achieved by providing one or more conductors for power feeding and signal transmission.

本発明は、伸縮柱自体で、最上部の照明装置またはその他の装置への給電及び信号の伝達を行えるので、伸縮柱の最上昇長さ以上必要となる電線を不要にできる効果があるとともに、最下降時の収納状態で伸縮柱を中心に弛めに電線を巻いて置いておくための範囲を確保しておく必要も無くなるので、伸縮装置の設置に必要な範囲を狭くできる効果もある。 Since the present invention can perform power supply and signal transmission to the uppermost illumination device or other device with the telescopic column itself, it has the effect of eliminating the need for electric wires that are longer than the maximum rising length of the telescopic column, Since it is not necessary to secure a range for winding the wire loosely around the telescopic column in the retracted state at the lowest position, the range necessary for installing the telescopic device can be narrowed.

従来例の油圧式伸縮柱の縦断面図Longitudinal section of a conventional hydraulic telescopic column 本発明の伸縮柱の縦断面図Vertical sectional view of the telescopic column of the present invention 本発明の伸縮柱の導電体４本の場合の最上部平面図The top plan view in the case of four conductors of the telescopic column of the present invention 本発明の伸縮柱の導電体８本の場合の最上部平面図The top plan view in the case of eight conductors of the telescopic column of the present invention

伸縮柱内部に設ける導電体は、基部（最下段）から最上段に亘り、伸縮柱が伸縮した場合も設置できる空間として、加圧された液体または気体の充填された内筒の外側と、外殻を形成する外筒の内側との間に設けるのが望ましい。また、導電体の構造は、伸縮柱と連動して伸縮させるので、内筒と同様に、下となる部品の外側に上となる部品が勘合しあって、各々上下にスライドして伸縮する多重の筒状態とするのが望ましく、さらに、この導電体は１本以上設けることが望ましい。 The conductor provided inside the telescopic column extends from the base (lowermost stage) to the uppermost stage as a space that can be installed even when the telescopic column expands and contracts, and the outer side of the inner cylinder filled with pressurized liquid or gas, It is desirable to provide between the inside of the outer cylinder which forms a shell. In addition, the structure of the conductor expands and contracts in conjunction with the telescopic column, so that, like the inner cylinder, the upper part fits into the outside of the lower part and slides up and down to extend and contract each other. It is desirable to have a cylindrical state, and it is desirable to provide one or more conductors.

本発明の一実施例を図２に示す。
伸縮柱１は、最上段５ａから基部（最下段）５ｂまでの各段５とも、外殻となる外筒３とその内部に加圧された液体または気体が充填される内筒４とで成り、この外筒３と内筒４は一体となって伸縮柱１の中心軸方向にスライドする。さらに、最上段５ａは照明装置２またはその他の装置２ａを上部に取付けられる構造で、基部（最下段）５ｂは、伸縮柱１内部に加圧された液体または気体を供給する供給口７と、伸縮柱１自身を固定できる構造を有している。 An embodiment of the present invention is shown in FIG.
The telescopic column 1 is composed of an outer cylinder 3 as an outer shell and an inner cylinder 4 filled with pressurized liquid or gas inside each stage 5 from the uppermost stage 5a to the base (lowermost stage) 5b. The outer cylinder 3 and the inner cylinder 4 are integrally slid in the central axis direction of the telescopic column 1. Further, the uppermost stage 5a has a structure in which the lighting device 2 or other apparatus 2a can be attached to the upper part, and the base (lowermost stage) 5b has a supply port 7 for supplying a pressurized liquid or gas into the telescopic column 1, and The telescopic column 1 itself can be fixed.

ここで、最上段５ａから基部（最下段）５ｂまでの各段５とも、内筒４の外側と外筒３の内側との間に空間がある。そこで導電体８となる部品を最上段５ａから基部（最下段）５ｂまで直線的に設け、電気的に連結させるとともに、伸縮柱１の伸縮動作と連動して伸縮できる構造にしてある。 Here, there is a space between the outer side of the inner cylinder 4 and the inner side of the outer cylinder 3 in each stage 5 from the uppermost stage 5a to the base (lowermost stage) 5b. Therefore, the parts to be the conductors 8 are linearly provided from the uppermost stage 5a to the base part (lowermost stage) 5b, and are electrically connected, and can be expanded and contracted in conjunction with the expansion and contraction operation of the telescopic column 1.

この導電体８が伸縮する構造は、例えば伸縮柱１の内筒４の伸縮構造と同様で、基部（最下段）５ｂに最下部絶縁体９ｂを介して導電棒８ｂが固定され、その上の段には、導電棒８ｂの外側に勘合する大きさの内径を有する導電管８ａ、さらにその上の段には下となる段の導電管８ａの外側に勘合する大きさの内径を有する導電管８ａを組み合せるといった具合にして、各段５に各々の絶縁体９を介して導電管８ａを固定することで、伸縮柱１と連動して伸縮できるようにしてあるとともに、電気的に絶縁されている。ここで、これらの導電体８を形成する導電管８ａと導電棒８ｂ、あるいは、導電管８ａ同士を電気的に導通させるために、ブラシ１１を介在させている。このブラシ１１については、導電棒８ｂまたは導電管８ａと上になる導電管８ａとが容易に摺動できると同時に常に電気的に導通できる構造であれば、適意に決定できる。 The structure in which the conductor 8 expands and contracts is the same as that of the inner cylinder 4 of the telescopic column 1, for example, and the conductive rod 8 b is fixed to the base (lowermost stage) 5 b via the lowermost insulator 9 b, A conductive tube 8a having an inner diameter that fits outside the conductive rod 8b is provided at the stage, and a conductive tube having an inner diameter that fits outside the conductive pipe 8a at the lower stage at the upper stage. 8a is assembled, and the conductive tube 8a is fixed to each stage 5 via each insulator 9, so that it can be expanded and contracted in conjunction with the telescopic column 1 and is electrically insulated. ing. Here, a brush 11 is interposed in order to electrically connect the conductive tube 8a and the conductive rod 8b forming these conductors 8 or the conductive tubes 8a. The brush 11 can be appropriately determined as long as the conductive rod 8b or the conductive tube 8a and the upper conductive tube 8a can slide easily and at the same time can be electrically connected.

導電体８は、最上部の照明装置２またはその他の装置２ａの給電及び信号伝達のため、最上段５ａに最上部絶縁体９ａを介して電極１０を設けてある。これを本発明の伸縮柱の最上部平面図である図３及び図４に示す。図３は導電体８の電極１０を４本設けた場合で、図４は８本設けた場合である。このように最上部に取り付けられる照明装置２またはその他の装置２ａの給電及び信号伝達に必要となる本数の導電体８を設けることができるのである。そして、基部（最下段）５ｂに取付けられたレセプタクル１２の各端子に全ての導電体８のそれぞれが割振られ結線されており、これで給電及び信号伝達を行うのである。 The electric conductor 8 is provided with an electrode 10 on the uppermost stage 5a via the uppermost insulator 9a for power supply and signal transmission of the uppermost lighting device 2 or other apparatus 2a. This is shown in FIGS. 3 and 4 which are top plan views of the telescopic columns of the present invention. FIG. 3 shows a case where four electrodes 10 of the conductor 8 are provided, and FIG. 4 shows a case where eight electrodes 10 are provided. Thus, the number of conductors 8 required for power supply and signal transmission of the lighting device 2 or the other device 2a attached to the top can be provided. All of the conductors 8 are allocated and connected to the terminals of the receptacle 12 attached to the base (bottom stage) 5b, and power supply and signal transmission are performed by this.

本発明によれば、伸縮柱の最上部に取付けられた照明装置またはその他の装置に対する給電・信号伝達機能を伸縮柱内部に有しているので、照明装置またはその他の装置からの電線で、伸縮時の引き回しや処置による多くの問題を皆無にできる。このため、円滑な昇降動作を可能とする伸縮柱を有する伸縮装置としての利用が期待される。 According to the present invention, since the power supply / signal transmission function for the lighting device or other device attached to the top of the telescopic column is provided inside the telescopic column, the electric wire from the lighting device or other device can be expanded and contracted. Many problems due to routing and treatment of time can be eliminated. For this reason, the utilization as an expansion-contraction apparatus which has an expansion-contraction column which enables smooth raising / lowering operation | movement is anticipated.

１伸縮柱
２照明装置
２ａその他の装置
３外筒
４内筒
５各段
５ａ最上段
５ｂ基部（最下段）
６電線
７供給口
８導電体
８ａ導電管
８ｂ導電棒
９絶縁体
９ａ最上部絶縁体
９ｂ最下部絶縁体
１０電極
１１ブラシ
１２レセプタクル
DESCRIPTION OF SYMBOLS 1 Telescopic pillar 2 Illuminating device 2a Other apparatus 3 Outer cylinder 4 Inner cylinder 5 Each stage 5a Top stage 5b Base (bottom stage)
6 Electrical wire 7 Supply port 8 Conductor 8a Conductive tube 8b Conductive rod 9 Insulator 9a Top insulator 9b Bottom insulator 10 Electrode 11 Brush 12 Receptacle

Claims

加圧された液体または気体で伸縮する多段式の伸縮柱において、前記伸縮柱の内部に、前記伸縮柱の伸縮動作と連動して伸縮可能な導電体を１本以上設けてあることを特徴とする伸縮柱。 In the multistage telescopic column that expands and contracts with pressurized liquid or gas, one or more conductors that can expand and contract in conjunction with the expansion and contraction operation of the telescopic column are provided inside the telescopic column. Telescopic column to do.

請求項１にかかげる伸縮柱において、前記伸縮柱の最上部の装置に電源を供給するための前記導電体を１本以上設けてあることを特徴とする伸縮柱。 2. The telescopic column according to claim 1, wherein one or more conductors for supplying power to the uppermost device of the telescopic column are provided.

請求項１にかかげる伸縮柱において、前記伸縮柱の最上部の装置に電気的な信号を伝達するための前記導電体を、１本以上設けてあることを特徴とする伸縮柱。 2. The telescopic column according to claim 1, wherein at least one conductor for transmitting an electrical signal to an uppermost device of the telescopic column is provided.

請求項１にかかげる伸縮柱において、請求項２にかかげる機能と、請求項３にかかげる機能とが共に設けてあることを特徴とする伸縮柱。 The telescopic column according to claim 1, wherein the telescopic column has both the function according to claim 2 and the function according to claim 3.