DD250012A1 - TELESCOPE FOR MOUNTING AND ADJUSTING ELEMENTS SUCH AS LOUDSPEAKERS OR OTHER DEVICES - Google Patents

Abstract

The invention is primarily applicable to cultural institutions. The goal and the task are the constant repeatability of the direct position of the elements by means of winds. As means for the vorwaehlbaren Bewegungsablaeufe - tilting and turning of the elements - a decrease in the hoisting ropes and freeing of stored potential energy is required. For this purpose, a tensioned by self-weight of the mutually coupled elements torsion spring is provided and the storage of the individual elements outside the center of gravity in a rocker arm. Due to the spatial swinging out of the tipping ropes a separation of the hoisting ropes is required.

Description

For this 2 pages drawings

field of use

The invention is preferably suitable for theaters, studios or other facilities.

Characteristic of the known technical solutions

By DE-GM 1899 476 ei η telescope is known, with which the lighting unit by means of chassis in the horizontal direction and movable by a rotating mechanism about its axis is pivotable. Chassis, slewing gear and hoist form a structural unit.

A cantilever having a terminal point for the lighting unit, which is outside the telescopic axis, allows the lighting unit to pivot.

The disadvantage is that suspension, slewing and hoist must be driven separately. For this purpose, special additional drives are necessary, the settings are very complicated and complicated. In narrow streets, the telescope is not vertically movable with fixed headlamps, but to readjust after each lowering.

A vertically pivotable and movable transmission element train gem. DD-PS 112573, allows pivoting one or more transmission elements, wherein the pivotally mounted in the telescopic structure pivoting fork can be pivoted about pivot linkage, wire rope and cable drum.

This transmission train does not allow twisting of the entire device. The once set position is not maintained when the transmission elements are pulled into the room ceiling. The loudspeakers can be lowered in the once set position. A further disadvantage is that a fixed preselect ble swivel angle correctable only by linkage change

The aim of the invention ·

The object of the invention is to provide a device and suspension in which the regiemäßig pre-selectable position, such as the speaker is constantly repeatable.

Explanation of the essence of the invention

- The object of the invention is that preselected positions of the speakers or lighting devices are only accessible via a winch without additional equipment at any time.

- The telescope for mounting and adjustment of elements such as speakers or other devices, consists of a on the upper part of the lower part of the telescope interchangeably arranged torsion spring, arranged underneath on a centrally mounted in the telescope guide tube, either right- or left-handed cable drum with the same direction against the torsion spring pulling hoisting ropes and provided on the guide tube fork, in which the elements are tiltably mounted on tilting cables. The elements are tilted and swiveled by the hoist cable guide via shear roller carriers, pulleys and cable drum. The tipping cables are attached to a fixed point on the lowest element and on the vertically movable and with the guide tube co-rotating Kippseilträger. In between, they are guided over tilting pulley pulleys on tilting rocker and fork. _;

embodiment

The inventive solution is explained in more detail with reference to the drawing

 In the drawing shows

Fig. 1: Telescope retracted

Fig. 2: Telescope extended

Fig.3: tilting of the elements

Fig.4: Swivel position of the elements before tipping

For example, the characteristics of the elements 8, such as loudspeakers, determine the desired beam angles in the horizontal and vertical directions. For the smallest ceiling openings a retraction of the elements 8 is possible only in a vertical position. If necessary, drive these elements 8 in their lowest floor plan position through the viewing ceiling. Then they take by gravity the regiemäßig selectable position, height, pan and tilt angle, a, the lowest part of the telescope 1 consists of a bottom open space. The upper area is formed by two transverse bars 3, in which the vertical guide tube 2 is rotatably supported. On the upper transverse bar 3 a torsion spring 4 is interchangeably arranged between the two transverse bars 3, the guide tube 2 carries a cable drum 5 on which both lifting ropes 6 are in the same direction against the Torsion spring 4 pulling, are arranged. The lower crossbar 3 carries in the direction of cable drum 5 two pulleys 7, which can be implemented either from right to left direction. Likewise, the hoisting ropes 6 can be placed on the cable drum 5 for clockwise or counterclockwise rotation.

Below the lower cross bar 3 is vertically movable, co-rotating with the guide tube as Kippseilanschlag the Kippseilträger 10 is provided. On this a roller bearing 13 is rotatably mounted in a self-aligning ball bearing, which is guided in the guide profiles of the telescope 1 against rotation and participates in the vertical movement of the Kippseilträgers 10. The hoisting ropes 6 thus run on the shear roller carrier 13 to the pulleys 7 on the lower cross bar 3 to the cable drum 5. The upper elements is fixed in a rocker arm 9, which is mounted in a fork 14 attached to the guide tube 2. In the tilting rocker 9, the lower element 8 is in turn tiltably mounted. The tilting cables 11 are guided by the Kippseilträger 10 on the Kippseilumlenkrollen 12 to the fixed point on the upper part of the lower element 8. When extending the telescope 1 by gravity, it comes to the next stop the individual parts of the telescope 1 and thus to relieve the hoisting ropes 6 by the amount of the telescope mass.

This relief leads to the relaxation of the torsion spring 4, which places the elements 8 over the guide tube 2 into the pivoting angle preselected by the stop.

Upon further descent of the hoisting ropes 6 slides on the guide tube 2 a swung-Kippseilträger 10 downward. The separate from the hoisting ropes 6 on Kippseilträger 10 tilting cables 11 cause the downward movement of the Kippseilträgers 10 tilting the elements 8 in their preselected position without changing their height. By tightening the hoisting ropes 6 indicated intermediate positions can be approached by means of limit switches, wherein the angle between the two elements 8 remains constant

 If only one tiltable element 8 is arranged per train, the sequence of movements takes place analogously.

Claims (3)

1. telescope for mounting and adjustment of elements ₍ such as speakers or other devices, characterized in that on the upper part of the lowermost part of the telescope (1) a torsion spring (4) is arranged interchangeably, below it on a center in the telescope (1) mounted guide tube (2) an optionally right- or left-handed cable drum (5) with the same direction against the torsion spring (4) pulling hoisting ropes (6) and in a provided on the guide tube (2) fork (14) the elements (8) tiltably mounted are. 2. Telescope according to item 1, characterized in that the elements (8) by means of shear roller carrier (13), pulleys (7) and cable drum (5) guided hoisting ropes (6) are pivoted and tilted. 3. Telescope according to item 1 and 2, characterized in that the elements (8) incorporating tilting cables (11) between a fixed point on the lower element (8) via KippseilumlenkroMen (12) on the tilting rocker (9) and the fork (14) and a tilting cable carrier (10) which is vertically movable in the lowest part of the telescope (1) and rotates with the guide tube (2).