DE3139087A1 - Electronically controlled disco system - Google Patents

Abstract

The invention represents a major aid and constantly reproducible information source at the disc jockey's console. He is more independent in the performance of his job, for example personally welcoming prominent guests. The layout of the system is organised clearly and, as shown, is technically feasible. The mechanical elements are restricted to what is essential, resulting in a compact design and reasonable weight. The principle of the record register permits the use of a high number of records, far in excess of the quoted number of 500 with reasonable dimensions and an affordable price. The invention is an example of how the electronics available today relieve a person of simple and unpleasant activities and the person can concentrate on essential and creative aspects. This also takes computer technology beyond the limits of commercial and technical application and brings it into the entertainments industry, which at the present time is becoming more and more important.

Description

To § 5 description

Electrically controlled disco system Technical area: Mechanical engineering, Electronics In the discotheques, the records are usually made with the help of two Turntable played with a time delay between playback Avoid two records. To do this, it is necessary to first remove the panels from compartments, which usually contain several hundred records, and these from Hand on.

The records are used in this work in discos or similar Amusement halls above average - worn out. Often times they will too with the content of an overturned glass, and often there are also ash particles of cigarettes on the microgrooves.

All of these;: Environmental influences1 do not lead to high wear just cheaper records.

The man or woman at the record player - the so-called disc jockey - Spends a lot of time - looking for the desired record titles and the records to be arranged before the beginning or after the end of each event. As a statistical Average value for the duration of a single can be assumed to be 3 minutes - This means that the disc jockey talks with guests who are known for nightclubs business support, must be limited to a maximum of 2 minutes, because it is necessary start the next record by hand. One way to the toilet is with one Full hall in 3 minutes also not to be created.

Even today there are dance bars where the recorder passes through the old principle of the record changer (the so-called ten-record player) because of Cost saving is replaced. The guests then stand while the record is being changed mostly unsafe on the dance floor.

These problems are with an electronically controlled disco system solvable.

This solves the following tasks: - Relieves the disc jockey of secondary work - Continuous nusik transmission from single records, without delay due to the disc change - - Manual operation by the disc jockey by means of lift control as well as automatic playback of the saved record requests possible - Highest degree of record care by removing environmental influences - - Highest level of information for the disc jockey through coupled with disc selection Issuing of information material about performers, concerts, fun for entertainment of the audience and much more

- Can be used professionally thanks to its large capacity of around 500 Records The electronically controlled disco system is commercially applicable in Discos, dance halls, at fashion shows and also in smaller and therefore cheaper ones Versions in the private sector (in cellar bars or to facilitate the time-consuming Recording of records on tape or cassette).

Figure 1 shows the electronically controlled disco system with a view in Direction of acceleration due to gravity. The system can be found in a record register and divide it into a turntable engine. You can see the whole area Imagine as two equal, superimposed surfaces, if you think of Figure 1 as looks at a surface; but with the restriction that the record register only has an overhead gear motor as a drive. The compartments in which the Records that are placed vertically are connected to a joint with a circumferential Round link chain connected. To simplify matters, the demarcation plates are between the records are omitted in the drawing. The two chains on the left and right are by two sprockets past the record players, vertically after guided above, driven by a geared motor via the upper shaft. On the chains are hung four compartments, with one Capacity of 128 each Records. The compartments become through a twice interrupted forced guidance held horizontally at every location during the cycle.

After choosing a record title, the subject in question will be displayed before the 1st Record player driven and locked there. At the same time the 1st turntable moves in front of the selected compartment, the gripper arm swivels after the register and turntable have come to a standstill takes out the corresponding platter and places it on the platter. The turntable starts up and goes into the "lift position", i.e. the turntable has normal peripheral speed (u = 45 min 1), and the tonearm is above the inlet groove the record. The tonearm is lowered by inputting the "Lift-down" control section and the record is played. In automatic mode, the "lift-down" function occurs after lowering the volume level of the 2nd turntable.

As mentioned above, the turntable drive consists of 2 Turntables that are arranged one above the other.

Each turntable is translated separately by a worm shaft in its level, driven by a gear motor. Through under the case attached wheels, it is guided on two rails (angle iron). The electronic Program, the geared motors receive the control commands, similar to the swivel arm (Gripper arm) and the record register; After the 1st turntable (e.g. the upper) has placed the record, the swivel arm goes outside in the rest position of the register area.

Now the commands of the 2nd disk title are executed: - Register swivels the correct compartment in front of the 2nd turntable - 2nd turntable goes into the desired one Position - After the register and turntable drive have come to a standstill, the Grab arm of the 2nd record player, grabs the record, puts it on and leaves in rest position; the 2nd turntable starts to move to the "lift position".

The playback takes place according to the functions described above.

After gripper arm 2 is in the waiting position, the register rotates again the 1st compartment in front of the 1st turntable and waits (register only rotates if both gripping arms in resting position in standing). When the 1st record has been played goes the tonearm of the 1st turntable returns and switches itself off the end. after the rotation speed of the turntable is zero, takes the gripper arm removes the record from the turntable and places it in the empty and correct one Compartment back. The gripper arm swivels in the rest position, the register and the 1st record player go to the position of the 3rd record request as with the 1st record title.

The reset in the correct compartment is done with an additional Memory, the "reset memory" guarantees Turntable in front of the corresponding compartment during playback only 3 bits (2 bit for the selection of a corresponding compartment, 1 bit for 1st turntable or 2nd Turntable).

When the device is switched off, the electronics ensure that all Records are back in their respective compartments before the supply voltage is switched off. This prevents records from being played the next time you switch on lying on the turntable, about which the electronics "know nothing".

The mechanical part of the system was designed taking into account the weight of the record designed and calculated. Replacing the chains with toothed belts or similar form-fitting shoots are still being worked on.

The electronic part is realized by microprocessors that ensure all functions listed above. The device is operated through a terminal. Additional storage capacity means that each Record any information (which can be read in beforehand) is displayed on the terminal.

The same plant can be made in a similar form with larger dimensions can also be built for maxi singles or long-playing records. Also combinations of the Types of construction are possible, which is still being worked on.

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Claims (1)

To § 4 patent claims: General term: Electronically controlled disco Plant @ The electronic. controlled disco system is thereby marked, that the records after saving the record requests one after the other with two Turntables are played alternately. Due to the constant alternation of two turntables it is possible without time delay, i.e. without interruption, to ensure continuous music transmission with records. That can manually by lift control of the record player or automatically (processing the record title one after the other in the order entered). As soon If one record has expired, the next can be played on the second record player already started. The supply and return of the records will be electronic controlled by microprocessors The record register is characterized by that several (here: 4) compartments with vertically standing records in one before fixable position can be brought so that each record of both (not at the same time from both) turntables. Through the forced guidance, which is interrupted in two places, the compartments are always horizontal during circulation held so that no record can fall out. The compartments are about swivel joints (Plain bearing) soldered to a round link chain. On a construction as a toothed belt drive work is still going on because of a quieter run. Through the two interruptions In the forced guidance, irregularities in the run can occur due to counterweights be balanced on the corresponding side of the subjects.