EP0667111A1 - Présentoir rotatif pour articles, notamment pour enceintes acoustiques - Google Patents

Présentoir rotatif pour articles, notamment pour enceintes acoustiques Download PDF

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Publication number
EP0667111A1
EP0667111A1 EP95101895A EP95101895A EP0667111A1 EP 0667111 A1 EP0667111 A1 EP 0667111A1 EP 95101895 A EP95101895 A EP 95101895A EP 95101895 A EP95101895 A EP 95101895A EP 0667111 A1 EP0667111 A1 EP 0667111A1
Authority
EP
European Patent Office
Prior art keywords
presentation
turntable
switching device
turntable according
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95101895A
Other languages
German (de)
English (en)
Other versions
EP0667111B1 (fr
Inventor
Norman Gerkinsmeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HESSE, ANDREAS
Original Assignee
Hesse Andreas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hesse Andreas filed Critical Hesse Andreas
Publication of EP0667111A1 publication Critical patent/EP0667111A1/fr
Application granted granted Critical
Publication of EP0667111B1 publication Critical patent/EP0667111B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026—Supports for loudspeaker casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart

Definitions

  • the invention relates to a presentation turntable for objects, in particular for loudspeakers, the objects being arranged on a plate and the turntable being rotatable in different positions.
  • the invention has therefore set itself the task of providing a presentation turntable, with the help of which it is possible to present objects professionally, such as listening to loudspeakers in the same position, this presentation turntable being easy to use.
  • the invention is based on a presentation turntable as described at the beginning and suggests that an electrical contact is assigned to the object and the turntable has a switching device with an electrical connection which fixes the table in one position and with the electrical contact Establishes connection. If an object is now selected that is to be presented, this object is brought into the presentation position. A rotary drive is provided for this. So that this presentation position is fixed, a switching device is provided which holds the turntable in the desired position. At the same time, an electrical connection is now made between the electrical contact of the object, for example the loudspeaker box or another electrically switchable device, and the electrical connection of the switching device. This will electrically activate the item. In the case of the example of the loudspeakers, these are then switched on and it is possible to listen to the loudspeakers.
  • two such rotary tables with an identical loudspeaker arrangement are preferably set up, and by rotating the table the desired pair of speakers can be heard in exactly the same position.
  • the buyer is satisfied because he can test different boxes from one place under almost the same conditions; with this professional turntable, the seller can demonstrate his items, for example the loudspeakers, without extensive conversion measures between changing the boxes on the turntable and make connections.
  • the table is rotated by a friction wheel drive with a motor, the drive being connected to a control and the drive positioning the turntable in a position determined by the control.
  • a controller monitors the rotary movement of the turntable.
  • the control monitors the rotary movement of the two rotary tables.
  • the control has, for example, a keypad which can be used to enter which object or which loudspeaker box is to be presented. To increase the ease of use, it is also provided, for example, that this control can be operated using a remote control. Handle bars for manual turning can also be provided for the rotary movement of the turntable.
  • the switching device has a corresponding fixing device, which can be supported by a latching device.
  • the turntable consists of a base plate on which a table top is rotatably mounted on roller bearings about a central axis and the table top carries a socket plate for the electrical contact.
  • the socket plate carries a variety of electrical contacts.
  • the electrical contacts on the circumference of the table top. If a variety of devices are to be demonstrated and presented on the rotary table, a complex adjustment of the individual contacts is necessary. When using a socket plate that carries a large number of electrical contacts, the complex positioning of the individual electrical contacts is eliminated because the socket plate can be worked with exact dimensions without difficulty and a large number of contacts can be provided.
  • a large number of roller bearings are provided for the storage of the turntable, which ensure that the weight set up on the table top is securely supported on the base plate. It is provided here, for example, that the pivot bearings are provided in the outer region of the base plate, in order to prevent the table from tilting sideways due to the weight of the objects.
  • a plug contact consisting of two sockets, is provided as the electrical contact, into which two plug pins of the electrical connection of the switching device, which are seated on a control rod, can be inserted.
  • a plug contact is not only ideally suited for connecting loudspeaker boxes to an amplifier, since this mechanical contact can avoid soldering points which are disadvantageous for the sound impression.
  • the plug contact is also suitable for transmitting high currents at high voltages, which means high power as a result, which is particularly advantageous for the power supply of electricity-intensive objects that are to be presented on the turntable.
  • the socket plate has bores which receive the sockets and the insertable control rod of the switching device and the socket plate has conduit channels for the electrical feed lines. Furthermore, it can be provided that the socket plate has recesses which accommodate further elements of the plug contact.
  • a short-circuit bridge which is provided on the contact and which connects the sockets to one another in the off position, ensures that the loudspeaker boxes that are not in operation do not resonate when presenting loudspeaker boxes. This is particularly advantageous when presenting high-quality boxes, since the listening experience of these boxes is not impaired by the humming of the boxes that are not switched on.
  • the short-circuit bridge is released from the sockets in the on position by the control rod of the switching device.
  • the control rod is extended by the pins, so that when the position of the turntable is fixed, the control rod first releases the shorting bar from the sockets before the pins come into contact with the sockets.
  • the plug contacts on the socket plate are arranged on a circle concentric about the central axis and a linear drive is assigned to each circle, the direction of movement of the linear drive being essentially parallel to the central axis.
  • the socket plate has twelve or sixteen plug contacts per circuit. This makes it possible to switch twelve or sixteen objects or electrical connections, for example.
  • a further linear drive is provided for this additional circuit.
  • a bass trap is provided in the middle of the turntable and the bass trap forms a base for further boxes.
  • This bass trap dampens the low-frequency, standing resonance waves.
  • the bass trap is used for several boxes at the same time, for example.
  • the bass trap has the shape of a cylindrical structure, the upper surface of which can then be used as a further plate for the presentation of objects.
  • this plate can then preferably be used for small objects, for example boxes.
  • the turntable 1 consists essentially of a circular plate on which the speakers 3 are arranged at the edge. As can be seen in Fig. 1, there are 3 handle bars 6 for the manual drive between the boxes. If a motor 4 with toothed belt 5 or a friction wheel drive is used, the handle bars 6 can be omitted.
  • the boxes 3 point outwards with the loudspeakers 16 and are arranged on the edge of the table 1. In this way, a large number of boxes can be accommodated on a turntable 1. In the exemplary embodiment in FIG. 1, eight boxes are arranged on a turntable 1.
  • the turntables 1 are preferably set up in pairs, with an identical arrangement of the boxes 3 being preferred.
  • a control 30 can be used to ensure that the boxes 3 which are switched on are each in exactly the same position.
  • the boxes are switched on and off via the switching device 2 or by the foot switch 17.
  • the controller 30 is also indicated in FIG. 1.
  • the controller 30 is connected to the line 42 with the switching device 2 and to the line 43 with the drive motor 4.
  • the controller 30, which can have a microprocessor, for example, firstly positions the rotary table in the desired position, which can be communicated to the controller 30, for example, via a keypad or a remote control. After this position has been reached, the controller 30 ensures the electrical connection between the electrical contact 44 and the electrical connection 45.
  • the switching device 2 which is shown in more detail in Fig. 3, consists essentially of an electromagnet 18 which actuates the control rod 13.
  • This electromagnet effects a linear drive 31.
  • a servo motor (from model construction) can also serve as the linear drive 31.
  • the control rod 13 carries pins 12, the axis of which runs parallel to the axis of the control rod 13. The control rod 13 protrudes beyond the end of the pins 12.
  • the turntable 1 has bushings 11 for each object, into which the pins 12 can be inserted using the control rod 13.
  • the sockets 11 can be regarded as an electrical contact 44, the plug pins 12 as electrical connections 45.
  • a bore 20 is provided for the control rod 13, in which the short-circuit bridge 14 is seated.
  • the short-circuit bridge 14 connects the plug contacts 10 of each non-switched box 3 in the off position.
  • the extension 21 is first inserted into the bore 20, which meets the short-circuit bridge 14 there and pushes it back against a spring 22.
  • a recess 23 is provided in the turntable 1.
  • the box 3 connected to the plug contacts 10 is now switched on.
  • the switching device 2 is controlled via the electromagnet 18 and can be coupled to the motor 4.
  • a control rod 15 is actuated mechanically via a pedal 24.
  • a lever for manual actuation can also be used.
  • the mode of operation corresponds to the switching device 2, as shown in FIG. 3.
  • Fig. 4 shows the off position
  • the short-circuit bridge is connected to the plug contacts 10
  • Fig. 5 shows the setting with the short-circuit bridge released.
  • the control rod 15 is actuated against the spring 25.
  • the bass trap 9 which dampens the low-frequency resonance waves.
  • the bass trap is used for several boxes 3 at the same time. Additional boxes, preferably smaller ones, can be placed on top of the bass trap. For this purpose, for example, a further contact surface is provided on the bass trap. A separate plug contact is of course provided for each box set up.
  • the table 1 is rotated via the motor 4 and the toothed belts 5.
  • the table 1 is preferably movable in both directions and has 8 rollers 7 on its underside.
  • the table rests on a bearing 26 in the middle.
  • FIG. 1 A further exemplary embodiment of the invention is shown schematically in FIG.
  • the structure is essentially similar to the structure of the rotary tables described above.
  • a table top 34 is rotatably mounted on a base plate 35 about the central axis 32.
  • a bearing 46 is provided for this purpose for the storage of the table top 34.
  • the table top 34 carries a socket plate 33.
  • the socket plate 33 is, for example, fixed here, that is to say it cannot be rotated relative to the table plate 34.
  • the bores 51, the fastening means for example screws, take up.
  • the socket plate 33 can also be glued to the table top 34.
  • the structure of the socket plate 33 is described in FIGS. 7, 8 and 10.
  • the socket plate 33 receives the electrical contacts 44.
  • the switching element 2 after the turntable is positioned, on the one hand fixes the turntable and on the other hand establishes the electrical connection between the electrical contact 44 of the device or object to be switched and the electrical connection 45.
  • the electrical contacts 44 are arranged on the socket plate 33, for example on a concentric circle, and a switching device 2 is provided above the socket plate 33 in this embodiment, which establishes the fixation and electrical connection.
  • the electrical supply lines for the switching device 2, which are not shown in FIG. 6, are passed through a tube 37 which is arranged concentrically on the central axis 32. In the base plate 35 there is also a cable duct 41 which is connected to the inside of the tube 37.
  • the tube 37 carries the switching device 2, whereby it is ensured that the tube 37 and thus also the switching device 2 cannot be rotated.
  • the tube 37 has at its lower end a flange 39 to which, for example, a disk 40 is welded or otherwise fastened. This disc 40 is connected to the base plate 35.
  • the tube 37 carries the switching device 2, the switching device 2 having a linear drive 31.
  • the direction of movement 36 of this linear drive 31 is essentially parallel to the central axis 32.
  • a vertical movement 36 of the linear drive 31 is provided.
  • FIG. 7 shows a top view of the socket plate 33 in one embodiment.
  • This embodiment has a total of twelve connection options or electrical contacts 44. Similar to a quadrant, these contacts 44 are arranged concentrically around the central axis 32. For clarity, only one quadrant of the socket plate has been marked for this.
  • the distance between the individual contacts 44 is therefore 30 °.
  • the mode of operation of the switching device 2 has already been described with FIG. 3.
  • the electrical contacts have essentially three holes. Two further bores 47 are arranged around the centrally arranged bore 20. For example, these three holes are on a straight line.
  • the bore 47 receives the socket 11 of the electrical contact 44.
  • the bore 20 serves as a guide bore for the extension 21 of the electrical connection 45.
  • a cable channel 48 is provided on the underside of the socket plate 33 for each electrical contact 44. This cable duct 48 receives the electrical lines that are connected to the sockets 11.
  • FIG. 10 A further exemplary embodiment of the socket plate 33 is shown in FIG. 10.
  • the division of the underside of the socket plate is only shown in a certain segment for clarity.
  • two circles of electrical contacts 44 were provided.
  • Such a configuration enables a large number of objects to be switched electrically. If, for example, three electrical contacts are provided per quadrant and circle, up to twenty-four electrical objects can be switched in this arrangement. For example, when demonstrating loudspeakers, twenty-four pairs can be demonstrated on two tables.
  • the two circles are arranged concentrically around the central axis 32 of the turntable. It is provided that a separate switching device 2 is provided for the contacts 44 for each circuit.
  • the socket plate 33 is preferably made of polyvinyl chloride plastic (PVC). This material is ideally suited for this, since it is electrically non-conductive and easy to machine.
  • PVC polyvinyl chloride plastic
  • the controller 30 monitors and regulates the positioning and setting or switching the devices 3 on and off. It can be provided here that the controller 30 has a microprocessor. If, for example, a certain device is selected for the demonstration, for example the customer wants a certain loudspeaker box to be demonstrated, the control can be entered directly or, for example, using a remote control, the corresponding number that corresponds to the object to be demonstrated. The controller now determines the shortest path from the current position of the table to the desired position and then disconnects the device that is currently switched on (the linear drive is retracted), after which the table accelerates and brakes continuously along the preselected path.
  • the preselected position As soon as the preselected position has been reached, for example, it can be coded with the aid of a bar code and can also be read out by the control using appropriate means, the position is fixed and the linear drive is activated in such a way that only the short-circuit bridge of the box to be demonstrated is released and then the electrical connection is established.
  • the controller can have an interface that can be connected to a computer.
  • the controller now outputs information corresponding to the device presented via this interface, with further information being displayed in parallel with the demonstration of the device, for example the loudspeaker box, via the connectable computer.
  • control can be used to transmit both low powers, e.g. for loudspeakers, and high powers at high voltages (e.g. mains voltage). This is useful, for example, for the wiring of corresponding electrical devices in the objects to be demonstrated.
  • Fig. 9 the storage of the table top 34 on the base plate 35 is shown in a schematic, ineffective representation.
  • simple roller bearings 49 are provided which take up a high load. These roller bearings 49 are guided in recesses 50 of the base plate 35 and are supported with their axis 52 in paragraphs 53. A large number of these roller bearings 49 are provided on the base plate 35. These roller bearings have a high load capacity of over 100 kilograms and thus guarantee secure support of the table top 34 on the base plate 35.
  • the device to be demonstrated e.g. the loudspeaker box can always be in the same position in the turntable according to the invention.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP95101895A 1994-02-14 1995-02-13 Présentoir rotatif pour articles, notamment pour enceintes acoustiques Expired - Lifetime EP0667111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9402394U DE9402394U1 (de) 1994-02-14 1994-02-14 Drehtisch mit mehreren Lautsprecherboxen
DE9402394U 1994-02-14

Publications (2)

Publication Number Publication Date
EP0667111A1 true EP0667111A1 (fr) 1995-08-16
EP0667111B1 EP0667111B1 (fr) 1997-09-03

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EP95101895A Expired - Lifetime EP0667111B1 (fr) 1994-02-14 1995-02-13 Présentoir rotatif pour articles, notamment pour enceintes acoustiques

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EP (1) EP0667111B1 (fr)
DE (2) DE9402394U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009555A1 (fr) * 1996-08-30 1998-03-12 Sintek International Ab Presentoir en rayonnages
EP1106117A1 (fr) * 1999-12-04 2001-06-13 Taitech International Corporation Etagère de présentation tournante électrique
ES2631827A1 (es) * 2017-03-31 2017-09-05 Universidad De Alicante Dispositivo automático para documentación fotogramétrica de objetos
CN111516978A (zh) * 2020-05-30 2020-08-11 夏喜明 一种泌尿科用标本保存及检验装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725866A1 (fr) * 1994-10-13 1996-04-19 Muller Johannes Haut parleur mobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813339C (de) * 1950-06-10 1951-09-10 Ludwig Scherler Schaufenster
DE3337926A1 (de) * 1983-10-19 1985-05-02 Ulrich 7121 Cleebronn Schlösser Verkaufssystem fuer stereoanlagen-bauteile
FR2620013A1 (fr) * 1987-09-07 1989-03-10 Lequere Eric Presentoir rotatif permettant l'alimentation des appareils electriques ou electroniques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813339C (de) * 1950-06-10 1951-09-10 Ludwig Scherler Schaufenster
DE3337926A1 (de) * 1983-10-19 1985-05-02 Ulrich 7121 Cleebronn Schlösser Verkaufssystem fuer stereoanlagen-bauteile
FR2620013A1 (fr) * 1987-09-07 1989-03-10 Lequere Eric Presentoir rotatif permettant l'alimentation des appareils electriques ou electroniques

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009555A1 (fr) * 1996-08-30 1998-03-12 Sintek International Ab Presentoir en rayonnages
AU718354B2 (en) * 1996-08-30 2000-04-13 Sintek International Ab Shelving stand
CN1123312C (zh) * 1996-08-30 2003-10-08 辛泰克国际Ab 搁架支座
EP1106117A1 (fr) * 1999-12-04 2001-06-13 Taitech International Corporation Etagère de présentation tournante électrique
ES2631827A1 (es) * 2017-03-31 2017-09-05 Universidad De Alicante Dispositivo automático para documentación fotogramétrica de objetos
CN111516978A (zh) * 2020-05-30 2020-08-11 夏喜明 一种泌尿科用标本保存及检验装置

Also Published As

Publication number Publication date
DE9402394U1 (de) 1994-04-07
EP0667111B1 (fr) 1997-09-03
DE59500577D1 (de) 1997-10-09

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