JPH0570078U - Video projector with lifting device - Google Patents
Video projector with lifting deviceInfo
- Publication number
- JPH0570078U JPH0570078U JP1828292U JP1828292U JPH0570078U JP H0570078 U JPH0570078 U JP H0570078U JP 1828292 U JP1828292 U JP 1828292U JP 1828292 U JP1828292 U JP 1828292U JP H0570078 U JPH0570078 U JP H0570078U
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- Prior art keywords
- video projector
- fixed
- ceiling surface
- pulley
- main body
- Prior art date
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Abstract
(57)【要約】
【目的】 天井面等への取り付け、取り外しを少ない人
数で行うことができ、施工時、および、その後のメンテ
ナンスも容易に行うことができるビデオプロジェクター
とする。
【構成】 天井面等に固定されたビデオプロジェクター
取付部材(1) と；ビデオプロジェクター本体(V) の上面
に設けられ、天井面にある取付部材(1) に連結固定され
る連結部(2) と；天井面等の取付部材(1) の両側に所定
の間隔をおいて固定された固定滑車(3) 、ビデオプロジ
ェクター本体(V) の連結部(2) の両端部に前記固定滑車
(3),(3) に対応して設けられた遊動滑車(4),(4) 、一端
(51)を天井面等に固定されビデオプロジェクター本体
(V) 遊動滑車(4) 、天井面等の固定滑車(3) に順次掛け
廻されて他端を天井面等に取り付けた巻取手段(6) に巻
き取り自在に連結された１本の糸条(5) からなる昇降装
置と、を有する。
(57) [Summary] [Purpose] A video projector that can be attached to and removed from the ceiling surface, etc., with a small number of people, and can be easily maintained during and after construction. [Structure] Video projector mounting member (1) fixed to the ceiling surface and the like; Connection part (2) provided on the upper surface of the video projector body (V) and connected and fixed to the mounting member (1) on the ceiling surface And; fixed pulleys (3) fixed on both sides of the mounting member (1) such as the ceiling surface at a predetermined interval, and the fixed pulleys at both ends of the connecting portion (2) of the video projector body (V).
Floating pulleys (4), (4) provided corresponding to (3), (3), one end
(51) is fixed to the ceiling surface, etc.
(V) A free pulley (4), which is wound around a fixed pulley (3) such as the ceiling surface in sequence, and the other end of which is connected to a winding means (6) attached to the ceiling surface so as to be freely wound And a lifting device composed of a yarn (5).
Description
【０００１】[0001]
本考案は、天井面を構成する躯体構造、あるいは天井面等（以下、「天井面等 」という。）に取り付けられるビデオプロジェクターに関するものである。 The present invention relates to a frame structure that constitutes a ceiling surface, or a video projector that is attached to a ceiling surface or the like (hereinafter referred to as “ceiling surface or the like”).
【０００２】[0002]
従来、ビデオプロジェクターを天井面等に取り付けるには、ビデオプロジェク ターを２〜３人の作業者が持ち、脚立等に登って天井面等に固定されたビデオプ ロジェクターの取付板や、天井面等から垂設されたアンカーボルト等にビデオプ ロジェクターをボルト止め等して取り付けていた。 Conventionally, to attach a video projector to a ceiling surface, etc., two or three workers have video projectors, climb a climber, etc., and attach the video projector to the ceiling surface, etc. The video projector was attached to the vertically installed anchor bolts by bolting it.
【０００３】[0003]
ところが、通常、ビデオプロジェクター自体の重量が５０〜１５０キログラム と非常に重いため、前記のように数人の作業者が共同でこれを支えて脚立等に登 って取り付ける作業は非常に危険であり、また、取付位置を合わせること等も困 難であって、しかもビデオプロジェクターは精密機器であることから、その取扱 には細心の注意が必要であることから、天井面等へのビデオプロジェクターの取 付作業は非常に大変な作業であった。更に、一旦、天井面等に取り付けられたビ デオプロジェクターは定期に、または異常発生時等に、これを天井面等から下ろ して点検、修理を行った後、再び天井面等へ取り付けなければならず、定期点検 あるいは修理の度に前記のような危険でかつ困難な作業を強いられており、天井 面等に取り付けられるビデオプロジェクターのメンテナンスは多くの人手を必要 とし、かつ大変な手間と費用がかかるものであった。 However, since the weight of the video projector itself is usually 50 to 150 kilograms, it is extremely dangerous for several workers to jointly support it and climb it on a stepladder, etc., as described above. Also, it is difficult to match the mounting position, etc. Moreover, since the video projector is a precision device, it is necessary to handle it with extreme caution, so install the video projector on the ceiling surface. The work involved was a very difficult task. In addition, the video projector once installed on the ceiling surface, etc. must be removed from the ceiling surface, etc. periodically for inspection or repair at regular intervals or when an abnormality occurs, and then reattached to the ceiling surface etc. However, the periodical inspection or repair requires the above-mentioned dangerous and difficult work, and the maintenance of the video projector mounted on the ceiling surface requires a lot of manpower and requires a lot of labor and cost. It took a lot of time.
【０００４】 本考案は上記の点に鑑み、天井面等に取り付けられるビデオプロジェクターと して、天井面への取り付け、取り外しを少ない人数で行うことができ、施工時だ けでなく、その後のメンテナンスも容易に行うことができるようになした昇降装 置を有するビデオプロジェクターを提供せんとするものである。In view of the above points, the present invention is a video projector that can be mounted on a ceiling surface, etc., and can be mounted on and removed from the ceiling surface with a small number of people. It is intended to provide a video projector having a lifting device that can be easily performed.
【０００５】[0005]
上記の目的を達成するための本考案に係るビデオプロジェクターは、天井面等 に固定されたビデオプロジェクター取付部材と；前記取付部材に連結固定される 連結部を有するビデオプロジェクター本体と；天井面等に固定された固定滑車と 、ビデオプロジェクター本体に取り付けられた遊動滑車と、一端を天井面等に固 定され、前記ビデオプロジェクター本体の遊動滑車および前記天井面等にある固 定滑車に順次掛け廻され、他端を天井面等に設けられた巻取手段に巻き取り自在 に連結された糸条と、からなる昇降装置と；よりなる構成されている。 A video projector according to the present invention for achieving the above object includes a video projector mounting member fixed to a ceiling surface or the like; a video projector main body having a connecting portion connected and fixed to the mounting member; A fixed pulley that is fixed, a floating pulley that is attached to the video projector main body, and one end that is fixed to the ceiling surface, etc., and then sequentially hung around the floating pulley of the video projector main body and the fixed pulley that is on the ceiling surface. And an elevating device having the other end rotatably connected to a winding means provided on the ceiling surface or the like.
【０００６】 前記昇降装置として、ビデオプロジェクター本体に２個の遊動滑車を取り付け るとともに、天井面等の固定滑車も２個とし、これを一端を天井面等に固定され た１本の糸条で、前記一方の遊動滑車、前記一方の固定滑車、他方の固定滑車、 および他方の遊動滑車に順次掛け廻して、糸条の他端を巻取手段に連結してもよ い。As the lifting device, two floating pulleys are attached to the video projector main body, and two fixed pulleys such as a ceiling surface are also provided, and one end is fixed with one thread fixed to the ceiling surface or the like. The other end of the yarn may be connected to the winding means by sequentially winding the one idle pulley, the one stationary pulley, the other stationary pulley, and the other idle pulley.
【０００７】 また、同様に２個の遊動滑車と、２個の固定滑車を用いた昇降装置の場合に、 ２本の糸条を用い、一端を天井面等に固定された２本の糸条のそれぞれを、各遊 動滑車、および固定滑車に順次掛け廻して、各糸条の他端を巻取手段に連結する ようにしてもよい。Similarly, in the case of an elevating device using two idle pulleys and two fixed pulleys, two yarns are used and two yarns whose one end is fixed to the ceiling surface or the like are used. Alternatively, each of the yarns may be sequentially wound around each idler pulley and the fixed pulley, and the other end of each yarn may be connected to the winding means.
【０００８】 更に、前記のように２本の糸条を用いる場合、２個の巻取手段を用いて各糸条 の他端を各巻取手段のそれぞれに連結してもよい。Further, when two yarns are used as described above, two winding means may be used to connect the other end of each yarn to each winding means.
【０００９】[0009]
上記の本考案に係る昇降装置を有するビデオプロジェクターでは、巻取手段を 利用して糸条を巻き取ることで、ビデオプロジェクターを天井面等に向かって引 き上げることができ、また、巻取手段を逆転させることでビデオプロジェクター を天井面等から下ろすことができる。前記の場合、糸条の他端は天井面等に固定 されていることから、糸条を巻き取ってビデオプロジェクターを引き上げる際に 巻取手段に加わる力はビデオプロジェクター自体の重量の約２０分の１程度で済 み、従来数人で行っていた作業を一人の作業者で行うことが可能となる。 In the video projector having the lifting device according to the present invention, by winding the yarn by using the winding means, the video projector can be pulled up toward the ceiling surface or the like. The video projector can be lowered from the ceiling surface by reversing. In the above case, since the other end of the yarn is fixed to the ceiling surface or the like, the force applied to the winding means when winding the yarn and pulling up the video projector is about 20 minutes of the weight of the video projector itself. Only about 1 is required, and it is possible for one worker to perform the work that was conventionally performed by several people.
【００１０】[0010]
以下、本考案を添付図面の実施例に基づいて説明する。 Hereinafter, the present invention will be described with reference to the embodiments of the accompanying drawings.
【００１１】 図１〜図３は本考案に係る昇降装置を有するビデオプロジェクターの１実施例 を示すものであり、また、図４はこのビデオプロジェクターにおける昇降装置の 概略を示すものである。図中において、符号１は天井面Ａ、あるいは天井面を構 成する躯体構造等に固定されたビデオプロジェクター取付部材、符号２はビデオ プロジェクター本体Ｖの上面に設けられ、前記天井面Ａにある取付部材１に連結 固定される連結部、符号３，３は天井面Ａの前記ビデオプロジェクター本体取付 部材１の両側に所定の間隔をおいて固定された固定滑車、符号４は前記ビデオプ ロジェクター本体Ｖの連結部２の両端部に前記固定滑車３，３に対応して設けら れた遊動滑車であって、更に、符号５はその一端51を天井面Ａに固定されるとと もに、前記ビデオプロジェクター本体Ｖの遊動滑車４、天井面Ａの固定滑車３に 順次掛け廻されて、他端を天井面Ａに取り付けた巻取手段６に巻き取り自在に連 結された１本の糸条であり、前記固定滑車３、遊動滑車４、糸条５および巻取手 段６により、ビデオプロジェクターの昇降装置が構成されている。FIGS. 1 to 3 show an embodiment of a video projector having an elevating device according to the present invention, and FIG. 4 shows an outline of an elevating device in this video projector. In the figure, reference numeral 1 is a video projector mounting member fixed to the ceiling surface A or a frame structure that constitutes the ceiling surface, and reference numeral 2 is provided on the upper surface of the video projector main body V and is mounted on the ceiling surface A. Connection parts to be connected and fixed to the member 1, reference numerals 3 and 3 are fixed pulleys fixed to both sides of the video projector main body mounting member 1 on the ceiling surface A at predetermined intervals, and reference numeral 4 is the video projector main body V. The floating pulleys are provided at both ends of the connecting portion 2 so as to correspond to the fixed pulleys 3 and 3, and the reference numeral 5 has one end 51 fixed to the ceiling surface A and the video. One thread that is wound around the floating pulley 4 of the projector main body V and the fixed pulley 3 of the ceiling surface A in sequence and is connected to the winding means 6 attached to the ceiling surface A in a freely windable manner. Yes, the fixed Car 3, idler pulley 4, the yarn 5 and the take-handle stage 6, a video projector lifting device is constituted.
【００１２】 前記天井面Ａに固定されたビデオプロジェクターの取付部材１は、天井面Ａに ボルトＢ等により固定された基板11から垂設された外筒12と該外筒12の下端から 伸縮自在に内挿した内筒13を固定ネジ14等により固定して、該内筒13下端に取り 付けた取付板15を高さ調節可能としてなる。The mounting member 1 of the video projector fixed to the ceiling surface A is an outer cylinder 12 hung from a substrate 11 fixed to the ceiling surface A by bolts B and the like, and is extendable from the lower end of the outer cylinder 12. The inner cylinder 13 inserted in the inner cylinder 13 is fixed by a fixing screw 14 or the like, and the height of the mounting plate 15 attached to the lower end of the inner cylinder 13 can be adjusted.
【００１３】 前記ビデオプロジェクター本体Ｖの上面に設けられた連結部２は、ビデオプロ ジェクター本体Ｖの上面に固定された断面略Ｕ字形の脚板21の上端間が横杆22に て連結され、該横杆22から断面略Ｕ部形の一対の取付腕23を上向き突設し、各取 付腕23の上端から前後に屈曲形成された各水平辺24部分を前記天井面Ａにあるビ デオプロジェクター取付部材１の取付板15にネジ止め等することにより、ビデオ プロジェクター本体Ｖを天井面Ａの取付部材１に連結固定可能としてなる。The connecting portion 2 provided on the upper surface of the video projector main body V is connected with a horizontal rod 22 between upper ends of a leg plate 21 having a substantially U-shaped cross section fixed to the upper surface of the video projector main body V. A pair of mounting arms 23 each having a substantially U-shaped cross section is projecting upward from the horizontal rod 22, and each horizontal side 24, which is bent forward and backward from the upper end of each mounting arm 23, is a video projector on the ceiling surface A. The video projector main body V can be connected and fixed to the mounting member 1 on the ceiling surface A by screwing or the like to the mounting plate 15 of the mounting member 1.
【００１４】 また、前記ビデオプロジェクター本体Ｖの上面に設けられた連結部２における 横杆22の両端には、ビデオプロジェクター昇降装置を構成する一対の遊動滑車４ ，４が取り付けられており、その上方の天井面Ａには前記遊動滑車４，４に対応 して一対の固定滑車３，３が設けられている。Further, a pair of idler pulleys 4, 4 constituting a video projector lifting device are attached to both ends of the horizontal rod 22 in the connecting portion 2 provided on the upper surface of the video projector main body V, and above them. A pair of fixed pulleys 3 and 3 are provided on the ceiling surface A of the above, corresponding to the floating pulleys 4 and 4.
【００１５】 そして、図４に示すように、天井面Ａにおける取付部材１の側方に一端51を固 定された１本の糸条５は、先ずビデオプロジェクター本体Ｖの一側に取り付けら れた遊動滑車４からこれに対応してその上方の天井面Ａにおける取付部材１の側 方に設けられた一方の固定滑車３に掛けまわされた後、取付部材１の左右前方に 配置された２個の水平な案内滑車７，７により取付部材１の他側に案内され、該 他側の天井面Ａに固定された固定滑車３からその下方に位置するビデオプロジェ クター本体Ｖ他側の遊動滑車４に掛け廻された後、更に天井面Ａに取り付けられ た固定滑車８に掛け廻され、ここから糸条５は取付部材１の後方に取り付けられ た巻取手段６に連結されて、該巻取手段６により巻き取り自在とされている。Then, as shown in FIG. 4, one thread 5 having one end 51 fixed to the side of the mounting member 1 on the ceiling surface A is first attached to one side of the video projector main body V. After being hung from one of the fixed pulleys 3 provided on the side of the mounting member 1 on the ceiling surface A above the floating pulley 4 corresponding thereto, it is arranged on the left and right front sides of the mounting member 1. Each of the horizontal guide pulleys 7, 7 is guided to the other side of the mounting member 1, and from the fixed pulley 3 fixed to the ceiling surface A of the other side, the video projector main body V located below the fixed pulley 3 and the idle pulley of the other side. After being hung around 4, the yarn is further hung around a fixed pulley 8 attached to the ceiling surface A, from which the yarn 5 is connected to a winding means 6 attached to the rear of the attaching member 1, The take-up means 6 allows the film to be wound up freely.
【００１６】 上記のような本考案に係る昇降装置を有するビデオプロジェクターでは、巻取 手段６を利用して糸条５を巻き取り、あるいは巻取手段６を逆転させることでビ デオプロジェクター本体Ｖを昇降させることができ、しかもこの場合、一端51を 天井面Ａに固定した糸条５を一対の固定滑車３および一対の遊動滑車４に掛け廻 してこれを巻取手段６に連結してなることから、巻取手段６で糸条５を巻き取っ てビデオプロジェクター本体Ｖを引き上げるのに要する力は、ビデオプロジェク ター本体Ｖの自重の約２０分の１程度で済み、５０〜１５０キログラムもあるビ デオプロジェクター本体Ｖを２．５〜７．２５キログラム程度の力で天井面等へ 引き上げることができ、従来のように数人で行っていた天井面等へのビデオプロ ジェクター本体Ｖの取り付け作業を、片手で巻取手段６を操作するとともに、他 方の手でビデオプロジェクター本体Ｖを天井面Ａの取付部材１に向かって案内し 、位置合わせをするといった具合に、一人で行うことができる。しかも、本考案 のビデオプロジェクターの場合には、天井面Ａに取り付けた取付部材１とビデオ プロジェクター本体Ｖとは、天井面Ａにある固定滑車３とビデオプロジェクター 本体Ｖに取り付けられた遊動滑車４とが糸条５により所定の位置に案内されるこ とから、取付部材１とビデオプロジェクター本体Ｖとの位置合わせをより簡単に 行うことができ、取付作業は一層容易となる。また、昇降装置自体も天井面Ａに 固定滑車３と巻取手段６とを設け、ビデオプロジェクター本体Ｖ側に遊動滑車４ を設けただけの極めて簡単な構造である。In the video projector having the lifting device according to the present invention as described above, the video projector main body V is formed by winding the yarn 5 using the winding means 6 or reversing the winding means 6. It can be raised and lowered, and in this case, the thread 5 having one end 51 fixed to the ceiling surface A is hung around the pair of fixed pulleys 3 and the pair of idler pulleys 4 and connected to the winding means 6. Therefore, the force required to wind the yarn 5 by the winding means 6 and pull up the video projector main body V is about 1/20 of the own weight of the video projector main body V, which is 50 to 150 kilograms. The video projector main body V can be pulled up to the ceiling surface with a force of 2.5 to 7.25 kilograms, and a video project to the ceiling surface, etc., which has been performed by several people as in the past, can be performed. The operation of attaching the main body V of the projector is performed by operating the winding means 6 with one hand and guiding the main body V of the video projector toward the attachment member 1 on the ceiling surface A with the other hand for alignment. Can be done alone. Moreover, in the case of the video projector of the present invention, the mounting member 1 mounted on the ceiling surface A and the video projector main body V are the fixed pulley 3 on the ceiling surface A and the floating pulley 4 mounted on the video projector main body V. Since the yarn 5 is guided to the predetermined position by the yarn 5, the mounting member 1 and the video projector main body V can be more easily aligned with each other, and the mounting work is further facilitated. Further, the lifting device itself has a very simple structure in which the fixed pulley 3 and the winding means 6 are provided on the ceiling surface A, and the floating pulley 4 is provided on the video projector main body V side.
【００１７】 尚、上記の実施例においては、巻取手段６として手動のウインチ型のものを示 したが、これを電動式の巻取手段と置き換えることができるのは勿論である。ま た、ここでは昇降装置として固定滑車３と遊動滑車４とをそれぞれ２個ずつ用い ているが、これらの固定滑車３と遊動滑車４の数を３個以上としてもよく、また 、この実施例では糸条５を巻取手段６へ案内するための固定滑車８を天井面Ａに １個だけ設けているが、巻取手段６の設置位置に応じて巻取手段６へ糸条５を案 内するための前記固定滑車８の数を増減することができる。In the above embodiment, a manual winch type winding device is shown as the winding device 6, but it goes without saying that it can be replaced with an electric winding device. Further, although two fixed pulleys 3 and two floating pulleys 4 are used as the lifting device here, the number of the fixed pulleys 3 and the number of floating pulleys 4 may be three or more. In the above, only one fixed pulley 8 for guiding the yarn 5 to the winding means 6 is provided on the ceiling surface A, but the yarn 5 is proposed to the winding means 6 according to the installation position of the winding means 6. It is possible to increase or decrease the number of the fixed pulleys 8 to be installed.
【００１８】 更に、図５に示したものは、天井面Ａに取り付けられる取付部材１とビデオプ ロジェクター本体Ｖに設けられる連結部２の他実施例を示すものであって、取付 部材１下端の取付板15の周囲に下方に向かって拡がる案内枠16を周設することに より、該案内枠16にて図６に示すようにビデオプロジェクター本体Ｖの連結部２ との位置合わせを容易化するようにしたものである。更にこの場合に、案内され る取付腕23側の水平辺24にも同様に案内枠25を設けることで、両者の位置合わせ は一層容易となる。また、これらの案内枠16、案内枠25はそれぞれ取付板15、お よび取付腕23の補強部材をも兼ねることで、これらの部材がビデオプロジェクタ ー本体Ｖの重量によってへたるのを防止する効果をも有するのである。また、天 井面Ａに固定されるビデオプロジェクター取付部材１としては、上記実施例のも のに限定されるものではなく、例えば図７に示すように、天井面Ａから垂設した アンカーボルト９・・・に直接ビデオプロジェクター本体Ｖの連結部２を連結固 定するようにしてもよく、天井面Ａの取付部材１とビデオプロジェクター本体Ｖ の連結部２との両者の態様は特に限定されるものではない。Further, FIG. 5 shows another embodiment of the mounting member 1 mounted on the ceiling surface A and the connecting portion 2 provided on the video projector main body V, in which the lower end of the mounting member 1 is mounted. By surrounding a guide frame 16 that spreads downwards around the plate 15, the guide frame 16 facilitates alignment with the connecting portion 2 of the video projector body V as shown in FIG. It is the one. Further, in this case, by similarly providing the guide frame 25 on the horizontal side 24 on the side of the mounting arm 23 to be guided, it becomes easier to position the both. Further, the guide frame 16 and the guide frame 25 also serve as reinforcing members for the mounting plate 15 and the mounting arm 23, respectively, so that these members are prevented from sagging due to the weight of the video projector main body V. It also has Further, the video projector mounting member 1 fixed to the ceiling surface A is not limited to the one in the above embodiment, and for example, as shown in FIG. The connection portion 2 of the video projector main body V 1 may be directly connected and fixed to the ..., and the modes of both the mounting member 1 on the ceiling surface A and the connection portion 2 of the video projector main body V 1 are particularly limited. Not a thing.
【００１９】 また、図８〜図10は、ビデオプロジェクター本体Ｖを昇降するための昇降装置 に、２本の糸条を用いてなる他実施例を示す昇降装置を示すものである。即ち、 図８に示すものは、一端51を天井面等に固定し、ビデオプロジェクター本体の連 結部２両端に設けた一対の遊動滑車４，４から、その上方の天井面等に固定され た一対の固定滑車３，３に掛け廻された２本の糸条５，５の他端を同時に一つの 巻取手段６に連結して、この巻取手段６により両糸条５を同時に巻き取り、ある いは巻取手段６を逆転させることでビデオプロジェクター本体Ｖを昇降可能とし たものである。このように２本の糸条５，５を一つの巻取手段６にて巻き取る場 合には、両糸条５，５間を仕切板で分けて巻取手段６の上下に巻き分けるか、あ るいは、図11に示すように巻取手段６を上下に２分して糸条５，５を上下に巻き 分けて両糸条５の巻取量を等しくすることで、ビデオプロジェクター本体Ｖの傾 きを防止することができる。更に、巻取手段６が回転に応じて上下に揺動するよ うにしておけば、糸条５を巻取手段６の上下に均一に巻き取ることができる。ま た、図９に示したものは、一端51を天井面等に固定し、ビデオプロジェクター本 体の連結部２両端に設けた遊動滑車４，４から、その上方の天井面等に固定され た固定滑車３，３に掛け廻された２本の糸条５，５の他端を、２つの巻取手段６ ，６のそれぞれに連結して、両巻取手段６，６により各糸条５を巻き取り、ある いは巻取手段６，６を逆転させることでビデオプロジェクター本体を昇降可能と したものである。この２つの巻取手段６，６を用いたものでは、例えば図例のよ うに２つの巻取手段６，６間をタイミングベルト10等で関係付けて両者の巻取動 作を同調させることで、ビデオプロジェクター本体Ｖを傾きなく昇降させること ができる。尚、上記の図８〜図９の場合においても、天井面Ａにある固定滑車３ やビデオプロジェクター本体Ｖに取り付けた遊動滑車４、更にはこれらに掛け廻 される糸条５、巻取手段６等の数は適宜増やすことができる。8 to 10 show an elevating device showing another embodiment in which two yarns are used in the elevating device for elevating the video projector main body V. That is, in the structure shown in FIG. 8, one end 51 is fixed to a ceiling surface or the like, and a pair of idler pulleys 4 and 4 provided at both ends of the connecting portion 2 of the video projector main body is fixed to the ceiling surface or the like above it. The other ends of the two yarns 5 and 5 wound around a pair of fixed pulleys 3 and 3 are simultaneously connected to one winding device 6, and the winding device 6 winds both yarns 5 at the same time. Alternatively, the video projector body V can be moved up and down by reversing the winding means 6. When two yarns 5 and 5 are wound by one winding means 6 as described above, whether the two yarns 5 and 5 are divided by a partition plate and whether the two yarns 5 and 5 are wound above and below the winding means 6. Alternatively, as shown in FIG. 11, the winding means 6 is divided into upper and lower parts to wind the yarns 5 and 5 up and down so that the winding amounts of both the yarns 5 are equalized. It is possible to prevent the V from tilting. Furthermore, if the winding means 6 is made to swing up and down according to the rotation, the yarn 5 can be evenly wound up and down on the winding means 6. Further, in the structure shown in FIG. 9, one end 51 is fixed to a ceiling surface or the like, and the floating pulleys 4 and 4 provided at both ends of the connecting portion 2 of the video projector main body are fixed to the ceiling surface or the like above it. The other ends of the two yarns 5 and 5 wound around the fixed pulleys 3 and 3 are connected to the two winding means 6 and 6, respectively, and the yarns 5 and 5 are respectively wound by the winding means 6 and 6. The video projector main body can be moved up and down by winding up or by reversing the winding means 6 and 6. In the case of using the two winding means 6 and 6, for example, by associating the two winding means 6 and 6 with the timing belt 10 or the like as shown in the figure, the two winding operations can be synchronized. The video projector main body V can be raised and lowered without tilting. 8 to 9, the fixed pulley 3 on the ceiling surface A, the idle pulley 4 attached to the video projector main body V, the thread 5 wound around these, and the winding means 6 are also provided. The number of etc. can be appropriately increased.
【００２０】[0020]
上記のように本考案に係る昇降装置を有するビデオプロジェクターでは、天井 面に設けた固定滑車とビデオプロジェクター本体に設けた遊動滑車と、天井面に 設けた巻取手段とからなる簡単な昇降装置を用いることで、従来、数人で行って いた危険で困難なビデオプロジェクターの天井面等への取付作業を一人で安全、 かつ簡単に行うことができ、ビデオプロジェクターの天井面への取付施工時のみ でなく、その後の定期点検、修理等といったビデオプロジェクターのメンテナン スのための作業を簡略化することができ、ビデオプロジェクターの取付工事、お よびその後の維持、管理に要する費用を大幅に軽減することが可能となる。 As described above, in the video projector having the lifting device according to the present invention, a simple lifting device including a fixed pulley provided on the ceiling surface, an idle pulley provided on the video projector main body, and a winding means provided on the ceiling surface is provided. By using it, it is possible for a single person to safely and easily install the video projector on the ceiling surface, etc., which was dangerous and difficult by several people, and only when installing the video projector on the ceiling surface. Not only that, but the work for the maintenance of the video projector such as the periodical inspection and repair after that can be simplified, and the cost required for the installation work of the video projector and the subsequent maintenance and management can be greatly reduced. Is possible.
【図１】本考案に係る昇降装置を有するビデオプロジェ
クターの１実施例の正面図。FIG. 1 is a front view of an embodiment of a video projector having a lifting device according to the present invention.
【図２】前記ビデオプロジェクターの側面図FIG. 2 is a side view of the video projector.
【図３】前記ビデオプロジェクターにおけるビデオプロ
ジェクター本体を除いた部分のの底面図FIG. 3 is a bottom view of a portion of the video projector excluding the video projector body.
【図４】前記ビデオプロジェクターにおける昇降装置の
概略図。FIG. 4 is a schematic view of a lifting device in the video projector.
【図５】天井面の取付部材とビデオプロジェクター本体
の連結部との他実施例を示す要部の斜視図。FIG. 5 is a perspective view of a main part showing another embodiment of a mounting member on a ceiling surface and a connecting part of a video projector main body.
【図６】前記取付部材と連結部との位置合わせの様子を
示す簡略正面図。FIG. 6 is a simplified front view showing how the mounting member and the connecting portion are aligned with each other.
【図７】天井面の取付部材の他実施例を示す要部の斜視
図。FIG. 7 is a perspective view of a main part showing another embodiment of a mounting member for a ceiling surface.
【図８】昇降装置の他実施例を示す簡略平面図。FIG. 8 is a simplified plan view showing another embodiment of the lifting device.
【図９】昇降装置の更に他実施例の簡略平面図。FIG. 9 is a simplified plan view of still another embodiment of the lifting device.
【図10】前記昇降装置を用いたビデオプロジェクターの
天井面への取付方法を示す簡略側面図。FIG. 10 is a simplified side view showing a method of attaching a video projector to the ceiling surface using the lifting device.
【図11】巻取手段の他実施例を示す要部の側面図。FIG. 11 is a side view of the main part showing another embodiment of the winding means.
Ａ 天井面 Ｖ ビデオプロジェクター本体 １ 取付部材 ２ 連結部 ３ 固定滑車 ４ 遊動滑車 ５ 糸条 ６ 巻取手段 ７ 案内滑車 ８ 固定滑車 ９ アンカーボルト A ceiling surface V video projector main body 1 mounting member 2 connecting portion 3 fixed pulley 4 idler pulley 5 thread 6 winding means 7 guide pulley 8 fixed pulley 9 anchor bolt
Claims (4)
ター取付部材と、 前記取付部材に連結固定される連結部を有するビデオプ
ロジェクター本体と、 天井面等に固定された固定滑車と、ビデオプロジェクタ
ー本体に取り付けられた遊動滑車と、一端を天井面等に
固定され、前記ビデオプロジェクター本体の遊動滑車お
よび前記天井面等にある固定滑車に順次掛け廻され、他
端を天井面等に設けられた巻取手段に巻き取り自在に連
結された糸条と、からなる昇降装置と、 よりなる昇降装置を有するビデオプロジェクター。1. A video projector mounting member fixed to a ceiling surface or the like, a video projector main body having a connecting portion connected and fixed to the mounting member, a fixed pulley fixed to the ceiling surface or the like, and a video projector main body. The attached idler pulley is fixed at one end to the ceiling surface, etc., and is sequentially wound around the idler pulley of the video projector main body and the fixed pulley at the ceiling surface, etc., and the other end is provided on the ceiling surface, etc. A video projector having an elevating device including a yarn connected to the device in a windable manner, and an elevating device including the yarn.
に取り付けられた２個の遊動滑車と、天井面等に固定さ
れた２個の固定滑車と、１本の糸条とを有し、一端を天
井面等に固定された糸条が、前記一方の遊動滑車、前記
一方の固定滑車、他方の固定滑車、および他方の遊動滑
車に順次掛け廻されて、糸条の他端が巻取手段に連結さ
れてなる請求項１記載の昇降装置を有するビデオプロジ
ェクター。2. An elevating device has two floating pulleys attached to a video projector main body, two fixed pulleys fixed to a ceiling surface or the like, and one thread, and one end thereof is a ceiling. A yarn fixed to a surface or the like is sequentially wound around the one idle pulley, the one stationary pulley, the other stationary pulley, and the other idle pulley, and the other end of the yarn is connected to the winding means. A video projector having the lifting device according to claim 1.
り付けられた２個の遊動滑車と、天井面等に固定された
２個の固定滑車と、２本の糸条とを有し、一端を天井面
等に固定された２本の糸条のそれぞれが、前記遊動滑
車、および前記固定滑車に順次掛け廻されて、各糸条の
他端が巻取手段に連結されてなる請求項１記載の昇降装
置を有するビデオプロジェクター。3. An elevating device has two floating pulleys attached to a video projector, two fixed pulleys fixed to a ceiling surface or the like, and two yarns, one end of which is the ceiling surface. 2. The elevating and lowering device according to claim 1, wherein each of the two yarns fixed to the same is sequentially wound around the floating pulley and the fixed pulley, and the other end of each yarn is connected to the winding means. Video projector having a device.
本の糸条の他端が、２個の巻取手段のそれぞれに連結さ
れてなる請求項３記載の昇降装置を有するビデオプロジ
ェクター。4. The elevating device has two winding means, and
The video projector having the lifting device according to claim 3, wherein the other end of the yarn of the book is connected to each of the two winding means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1828292U JPH0570078U (en) | 1992-02-26 | 1992-02-26 | Video projector with lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1828292U JPH0570078U (en) | 1992-02-26 | 1992-02-26 | Video projector with lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0570078U true JPH0570078U (en) | 1993-09-21 |
Family
ID=11967284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1828292U Pending JPH0570078U (en) | 1992-02-26 | 1992-02-26 | Video projector with lifting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0570078U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015000503A (en) * | 2013-06-14 | 2015-01-05 | 株式会社シネマ工房 | Lifting device |
| WO2015129565A1 (en) * | 2014-02-26 | 2015-09-03 | ウシオ電機株式会社 | Projector device for digital cinema movie theater |
| JP2015161722A (en) * | 2014-02-26 | 2015-09-07 | ウシオ電機株式会社 | Projector device for digital cinema theater |
| JP2015161721A (en) * | 2014-02-26 | 2015-09-07 | ウシオ電機株式会社 | Projector device for digital cinema theater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251880A (en) * | 1985-08-30 | 1987-03-06 | Sony Corp | Elevating device for projector device |
-
1992
- 1992-02-26 JP JP1828292U patent/JPH0570078U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251880A (en) * | 1985-08-30 | 1987-03-06 | Sony Corp | Elevating device for projector device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015000503A (en) * | 2013-06-14 | 2015-01-05 | 株式会社シネマ工房 | Lifting device |
| WO2015129565A1 (en) * | 2014-02-26 | 2015-09-03 | ウシオ電機株式会社 | Projector device for digital cinema movie theater |
| JP2015161722A (en) * | 2014-02-26 | 2015-09-07 | ウシオ電機株式会社 | Projector device for digital cinema theater |
| JP2015161721A (en) * | 2014-02-26 | 2015-09-07 | ウシオ電機株式会社 | Projector device for digital cinema theater |
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