JP2009125353A - Hanging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make all of traction bodies work even when moving speeds of the traction bodies which are paid out of drums of respective driving sources or are rewound around the drums of the respective driving sources in elevating and lowering hanging materials by synchronously using a plurality of the driving sources do not agree. <P>SOLUTION: In a hanging apparatus which includes the plurality of the driving sources 1 disposed above a stage or the like, the drums 2 driven by the respective driving sources 1, and the plurality of the traction bodies 3 which are paid out synchronously and are rewound in synchronism with respective base ends connected to the drums 2 and is configured to elevate or lower a suspended body (4) extended in a direction of a size of the stage for suspending the hanging materials in hoisting each end of the plurality of the traction bodies 3, a pair of the adjacent traction bodies 3 in the plurality of the traction bodies 3 are coupled to the suspended body (4) through a tilt correcting means 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a suspension device, and more particularly, to an improvement of a suspension device that is installed above a theater stage or the like and lifts a suspended object such as a notebook.

  Various proposals have hitherto been made as a lifting device that is mounted above a theater stage and the like to lift a hanging object such as a notebook. Among them, for example, Patent Document 1 is relatively heavy. A proposal of a suspension device suitable for use in raising and lowering a suspended object is disclosed.

  In other words, the suspension device includes a single drive source disposed on a cage that is disposed above the stage, a drum that is provided and driven by the single drive source, and each drum is provided with a base. It has a plurality of tow bodies that are drawn out while being connected (connected) and wound up, and that extend in the frontage direction of the stage and lifts a suspended body such as a baton that suspends a suspended object. It becomes.

Therefore, in the proposal of this suspension device, a plurality of towed bodies drawn out from or wound by the drum, for example, as long as the speed of the steel cord is the same, the plurality of towed bodies are relatively heavy. The horizont curtain, which is a large suspended object, can be lifted and lowered using a baton.
Japanese Patent Laid-Open No. 2003-236263 (abstract, paragraphs 0009, 0015, 0016, and FIG. 2 in the specification)

  However, there is no problem in the above-described suspension device proposal in that the horizont curtain, which is a relatively heavy suspended object, can be raised and lowered, but there is a risk of minor problems when using this proposal. May be pointed out.

  In other words, when the suspended object is a paddle that is heavier than the horizont curtain, it is necessary to use a traction body or drive source that can resist the increased load. If it is increased, it becomes easy to cause problems such as an unnecessarily increased weight of the entire apparatus and a request for strengthening a spider for example.

  Therefore, if the number of towing bodies is increased and the number of drive sources is increased, the purpose can be achieved without incurring problems such as unnecessarily increasing the weight of the entire device and the demand for strengthening the scissors. Depending on the state of the drive source, there are restrictions on the installation location of the apparatus.

  That is, if a plurality of drive sources are integrated, it is possible to avoid inconsistencies in the moving speeds of the traction members that are fed from the drums or wound around the drums due to drive errors of the respective drive sources.

  However, when a plurality of drive sources are integrated, as described above, there is a risk that the installation location of the apparatus is likely to be limited. Therefore, there is a strategy for synchronously driving a plurality of drive sources while separating them. However, in this case, there is a risk that a discrepancy in the moving speed of the towed body that is fed out from the drum or wound around the drum due to a driving error or the like of each driving source is developed.

  If the moving speeds of the traction bodies fed out from the drums of the plurality of drive sources or wound around the drums do not match, the traction body having a high movement speed is loosened when the suspended object is lowered. It does not function, and when pulling the suspended object, the pulling body having a slow moving speed is loosened and does not function.

  The present invention was devised in view of such a current situation, and an object of the present invention is to feed out a drum of each drive source when lifting a suspended object using a plurality of drive sources synchronously. Or, even if the moving speeds of the traction bodies wound around the drums of the respective drive sources become inconsistent, all the traction bodies can function so that it is optimal for expecting an improvement in their versatility. It is to provide a hanging device.

  In order to achieve the above-described object, the structure of the suspension device according to the present invention is basically driven by a plurality of drive sources disposed above a stage and the like, and provided by each of the plurality of drive sources. A drum and a plurality of tow bodies that are fed out synchronously and wound up synchronously while their respective base ends are connected to the respective drums, and the stage when the tips of the plurality of tow bodies are raised and lowered In a suspension device that lifts and lowers a suspended body that extends in the frontage direction and suspends a suspended object, a pair of adjacent traction bodies among a plurality of traction bodies are covered via an inclination correcting means. It is assumed that it is connected to a suspended body.

  And the inclination correcting means has a connecting member for connecting the tip of the pulling body to both ends or both ends while extending along the axial direction of the suspended body, and the central portion in the axial direction of the connecting member is the lower covering member. It is assumed that it is pivotally attached to the suspended body side.

  Therefore, in the present invention, a pair of adjacent traction bodies among a plurality of traction bodies are connected to the suspended body via the inclination correcting means, so that the suspended body does not tilt. Go up and down.

  And in this invention, the inclination correcting means is provided in the central part in the axial direction of the connecting member that connects the tip of the pulling body to both ends or both ends while extending in the axial direction of the suspended member. And the lower pivoting portion provided on the suspended body and pivoting the upper pivoting portion, the upper pivoting portion in the connecting member is provided on the suspended body. By pivotally attaching to the lower side pivoting portion, the connecting member can move both ends in the vertical direction around the center portion, that is, both sides can swing in the vertical direction.

  Therefore, even if the lifting speed of one of the traction bodies may be different from the movement speed of the other traction body between a pair of adjacent traction bodies whose tips are connected to the connecting material, either One or the other towed body does not sag, functions as a towed body, and the suspended object including the suspended body moves up and down without being inclined.

  In the following, the present invention will be described based on the illustrated embodiment. The suspension device according to the present invention is embodied in a stage space of a theater, for example, and as shown in FIG. A plurality of driving sources 1 arranged in the upper machine room R, drums 2 driven by the driving sources 1, and the respective bases connected to the drums 2 are fed out synchronously and synchronized. And a plurality of tow bodies 3 wound up.

  In the drawing, the drive source 1 and the drum 2 are arranged in a dedicated machine room R that is defined above the sleeves that are both sides in the frontage direction of the stage S that is the left-right direction in the drawing. Considering where the drive source 1 and the drum 2 function, this may be disposed on the scissors D.

  In particular, in many existing theaters and the like, a baton device or the like is provided, so that a kite child D is provided above the stage S. Therefore, as long as the kite child D is equipped, the suspension device of the present invention is disposed. Is possible.

  In addition, when the arrangement place of the drive source 1 and the drum 2 is moved from the top of the scissors D to the machine room R, it is advantageous for the top of the scissors D to enter and pass by an operator such as the back side. The point that D is formed so as to have sufficient mechanical strength to assure entry and passage of the worker, and it is not required to require mechanical strength that also guarantees support of the plurality of driving sources 1 and the drum 2. Will be advantageous.

  In addition, the kite child D is formed so that a large number of band-like spaces appear in the front direction of the stage S by a large number of girders D1 extending in the front direction of the stage S. It is held in a so-called horizontal state by connection of longitudinal members extending in the depth direction, connection to side walls and beams defining the ceiling, and connection of bundle members hanging from the ceiling.

  Therefore, the traction body 3 whose base end is connected to the drum 2 included in the drive source 1 is suspended above the stage S that passes through the belt-like space that appears in the spear child D and is on the front side.

  By the way, although not shown in the drawing, a large number of girders that extend in the depth direction of the stage S are connected to the so-called same level or the like as a spider D. Some have a lattice-like planar shape.

  In this lattice-shaped kite child D, for example, a large number of so-called rectangular spaces of about 10 m / m × 5 m / m continue on the left and right sides. The tip side is suspended above the stage S which is the lower side.

  The drive source 1 and the drum 2 may be disposed in a chamber or a space that separates the sleeve from the wall, although not shown, instead of being disposed in the machine room R.

  The drive source 1 has, for example, a base (or base) 11 fixed to the floor of the machine room R and an electric motor 12 on the base 11 as is often the case. The drum 2 is driven by the electric motor 12.

  By the way, there are a plurality of drive sources 1 in the suspension device of the present invention, and each of them is provided independently. For example, the plurality of drive sources 1 have the same drive shaft in the electric motor 12. Not integrated.

  This is because, as described above, when a plurality of electric motors 12, that is, two electric motors 12, are integrated, there is an advantage that the moving speeds of the respective towing bodies 3 coincide with each other. Inconveniences that make it easier to receive restrictions on the location.

  Therefore, in the suspension device according to the present invention, the plurality of drive sources 1 are arranged independently to make it difficult to be restricted by the installation location in the suspension device, while avoiding a problem when the moving speeds of the traction bodies 3 are inconsistent. For this purpose, an inclination correcting means 5 described later is provided.

  The base 11 is formed to have a strength capable of ensuring self-supporting while the electric motor 12 and the drum 2 are mounted in a fixed state. In many cases, the base 11 is made of steel so as to enable weight reduction. It will be formed into a utilized frame structure.

  The electric motor 12 may have any configuration as long as the drum 2 can be driven, but in many cases, a known structure that is driven by a commercial current will be used.

  Although not shown, the electric motor 12 is connected to a speed reduction mechanism, a speed change mechanism, and a reverse rotation mechanism, a brake mechanism, and the like of the drum 2. In many cases, an alarm mechanism, an emergency stop mechanism, and the like are also provided. Will be done.

  The drum 2 enables forward rotation and reverse rotation while being held on the base 11 as described above, thereby enabling the drawing and winding of the towing body 3. The base ends of each are rooted, that is, fixedly connected.

  And this drum 2 can make the inconsistency of the moving speed in each traction body 3 by winding up and pulling out the traction body 3 without expressing interference between adjacent traction bodies 3 at the time of driving. Eliminate as much as possible.

  In this type of suspension device, the traction body 3 is made of a steel cable (wire), and the base ends of the traction body 3 are connected to a drum 2 described later, so that a plurality of pulleys 31 and 32 are connected. The frame-like body 4 is moved up and down by being drawn out and wound up.

  The tow bodies 3 are wound around the drum 2 as shown in the figure, and each has a different length. , Has a length of about 30 meters or more.

  This is because if the drum 2 is positioned on the kite child D, in many cases, the distance from the floor of the stage S to the kite child D is less than 30 meters. This is because it is sufficient that the tow body 3 has a length of about 30 meters or more even if it is lowered.

  By the way, the suspension device according to the present invention is basically a suspended body that suspends a suspended object, for example, a notebook W, that extends in the frontage direction of the stage when the tips of the plurality of tow bodies 3 are raised and lowered. The frame-like body 4 is moved up and down.

  The frame-like body 4 that is a suspended body is a baton, a bridge, or the like. In particular, the baton is used to suspend a suspended object such as a lighting device, a loudspeaker, or a microphone, and from a single tube in history. However, in recent years, there are those formed in a truss structure so as to be able to hold a suspended object such as a heavy background plate or a horizont curtain that has a relatively large weight.

  The bridge is literally formed like a bridge and holds a suspended object while allowing an operator such as the back to pass inside. Compared to a horizontal curtain such as a notebook W, for example. It is suitable for hanging heavy objects.

  In any case, the suspension device of the present invention suspends and lifts a suspended object that is suspended or held by the frame-like body 4 that is a suspended body formed of a baton or a bridge formed in the above truss structure.

  In the suspension device according to the present invention, a pair of adjacent traction bodies 3 among a plurality of traction bodies 3 are connected to the frame-like body 4 via the inclination correction means 5. Basically, it has a connecting member 51 that extends along the axial direction of the frame-like body 4 and connects the tip of the puller 3 to both ends or both ends, and the center of the connecting member 51 in the axial direction. The part is pivotally attached to the lower frame-like body 4 side.

  And as shown in the figure, the inclination correcting means 5 is an intermediate material disposed below the connecting material 51 so as to be parallel to the connecting material 51 and slightly shorter than the connecting material 51. 52.

  The reason why the intermediate member 52 is formed shorter than the connecting member 51 is that the connecting member 51 does not interfere with the intermediate member 52 when the connecting member 51 is inclined, as will be described later. .

  In the illustrated embodiment, as shown in FIG. 2, the central portion in the axial direction of the connecting member 51 is pivotally attached to the central portion in the axial direction of the intermediate member 52, while the intermediate member 52 has both ends or both end portions. As a result, the connecting member 51 is pivotally attached to the lower frame-like body 4.

  The connecting member 51 and the intermediate member 52 are configured to have a self-supporting property and a mechanical strength that enables the frame-like body 4 to be suspended. For example, a steel pipe having a rectangular cross section, etc. It will be made of a lightweight mold consisting of

  The connecting material 51 and the intermediate material 52 are formed of a lightweight mold material. The connecting material 51 is formed on the lower surface of the central portion, and the intermediate material 52 is formed on the central portion. For example, brackets 51a and 52a formed in a tongue-like shape are respectively held on the upper surface by welding or the like, and both the brackets 51a and 52a are connected by the penetration of the pin 53 so that the pivot between the members 51 and 52 is achieved. Achieving wearing.

  Therefore, as shown by a solid line diagram in FIG. 4, when the tips as the lower ends of a pair of adjacent pullers 3 are connected to both ends or both ends of the connecting member 51. If the lengths of both pulling bodies 3 are the same, the connecting member 51 is maintained in the so-called horizontal state shown in the figure.

  On the other hand, the lengths of the two pulling bodies 3 are different. As shown in a virtual diagram in FIG. 4, the connecting member 51 is inclined in a seesaw manner with the pivot point as a fulcrum, The inclination angle does not become unnecessarily large. Therefore, as long as the connecting material 51 does not interfere with the intermediate material 52, the intermediate material 52 does not incline.

  From the above, in order not to interfere with the intermediate member 52 when the connecting member 51 is inclined, the connecting member 51 may be formed in an arc shape that lifts both ends upward. In addition, the intermediate member may be formed in an arc shape that lowers both ends downward.

  In the suspension device of the present invention formed as described above, a pair of adjacent traction bodies 3 among a plurality of traction bodies 3 is a frame-shaped body that is a suspended body via the inclination correcting means 5. Since the frame-like body 4 is connected to 4, the frame-like body 4 is raised and lowered without being inclined.

  In the suspension device of the present invention, the inclination correcting means 5 has the connecting member 51 that connects the tip of the puller 3 to both ends or both ends while extending along the axial direction of the frame-like body 4. Since the central portion in the axial direction of the connecting material 51 is pivotally attached to the lower frame-like body 4 side, the connecting material 51 can be inclined in a seesaw manner with the pivoting point of the central portion as a fulcrum, When the moving speeds of the pair of tow bodies 3 are different from each other, and thus any one of the tow bodies 3 is slack, the slack of the tow bodies 3 is eliminated by the inclination of the connecting member 51.

  Therefore, a suspended object that is suspended by a plurality of tow bodies 3, for example, a notebook W, is suspended and lifted without tilting the upper end.

  As described above, in the suspension device according to the present invention, in particular, the drive source 1 is set in a fixed state together with the drum 2. However, from the intention of the present invention, although not illustrated, Of course, the drive source 1 may be set to be movable together with the drum 2, and the suspension device may be a baton device due to its configuration.

It is a front view which shows the suspension apparatus by this invention. It is a front view which shows an inclination correction means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive source 2 Drum 3 Pulling body 4 Frame-shaped body which is a suspended body 5 Inclination correction means 11 Base (or base)
12 Electric motor 31, 32 Pulley 51 Tie material 52 Intermediate material D Samurai child R Machine room S Stage (floor)
W

Claims (4)

A plurality of drive sources arranged above the stage, drums driven by the respective drive sources, and a plurality of drums that are fed out synchronously and wound up synchronously with their respective base ends being connected to the drums In a suspension device comprising a plurality of tow bodies, and lifting and lowering a suspended body that extends in the frontage direction of the stage and lifts a suspended object when the tips of the plurality of tow bodies are raised and lowered. A suspension apparatus comprising: a pair of adjacent tow bodies among the tow bodies to be connected to a suspended body through an inclination correcting means. While the inclination correcting means extends along the axial direction of the suspended body, it has a connecting material that connects the tip of the pulling body to both ends or both ends, and the central portion in the axial direction of the connecting material is on the lower suspended body side The suspension device according to claim 1, wherein the suspension device is pivotally attached to the frame. The suspension device according to claim 1, wherein the tow body is made of a steel cable. The suspension device according to claim 1 or 2, wherein the suspended body is a frame-shaped body, and the frame-shaped body is a baton or a bridge.

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