EP1523214A2 - Mechanisches System zur Aufhängung,Verbindung,Absenkung der linearen Anordnungen von Lautsprechernboxen - Google Patents

Mechanisches System zur Aufhängung,Verbindung,Absenkung der linearen Anordnungen von Lautsprechernboxen Download PDF

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Publication number
EP1523214A2
EP1523214A2 EP04425744A EP04425744A EP1523214A2 EP 1523214 A2 EP1523214 A2 EP 1523214A2 EP 04425744 A EP04425744 A EP 04425744A EP 04425744 A EP04425744 A EP 04425744A EP 1523214 A2 EP1523214 A2 EP 1523214A2
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EP
European Patent Office
Prior art keywords
bar
enclosure
hole
enclosures
bars
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.)
Withdrawn
Application number
EP04425744A
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English (en)
French (fr)
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EP1523214A3 (de
Inventor
Guido Noselli
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Outline Di Noselli G & C SNC
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Outline Di Noselli G & C SNC
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Application filed by Outline Di Noselli G & C SNC filed Critical Outline Di Noselli G & C SNC
Publication of EP1523214A2 publication Critical patent/EP1523214A2/de
Publication of EP1523214A3 publication Critical patent/EP1523214A3/de
Withdrawn legal-status Critical Current

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    • 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

Definitions

  • This invention regards the loudspeaker enclosure sector in general and refers in particular to a system for supporting or suspending (supporting a Stacked System or suspending a Flying System), connecting and adjusting the inclination (splay) of multiple loudspeaker enclosure systems, in a line array configuration).
  • a patent by this applicant described among other things a loudspeaker enclosure with a parallelepiped-shaped body, a substantially trapezium-shaped footprint, without a front part, which means that, viewed from the front, it has a centre cavity with sides but open at the top and bottom, in other words unobstructed by walls above or below.
  • At the rear of the cavity there's an emission slot for a high frequency waveguide.
  • the mid and low frequency loudspeakers are mounted in the side walls of the cavity, positioned symmetrically in relation to the emission slot.
  • top and bottom sides in the area corresponding to the front cavity excludes any negative effects, such as interference due to reflections from parallel or diverging surfaces, which these sides would otherwise have formed. This enables a real unbroken sound line to be formed for all frequencies reproduced, in the event of several enclosures being used one above the other (in a line array) and also when the enclosures must be inclined in relation to each other, for vertical coverage requirements.
  • more conventional loudspeaker enclosures with a body or box of any other shape when positioned in line one above the other, may require the splay between them to be adjusted to optimize sound coverage.
  • One aim of the invention is to provide a means with a high load-bearing capacity and guaranteed reliability for supporting and connecting the boxes of several loudspeaker enclosures in line, with the possibility of fine individual adjustment of inclination as required, even with a precision of 1 ⁇ 4 of a degree or less.
  • Another aim of the invention is to provide mechanical means that are not costly to build, but can simplify and facilitate support, lifting, linking and inclination of several loudspeaker enclosures, and allow fine adjustment to be carried out in a simple practical manner.
  • a mechanical connecting system consisting essentially in a pair of link bars for connecting the two sides of loudspeakers enclosures in line (array), starting from a suspension or support frame, the link bars of each two consecutive loudspeaker enclosures being connected to create an oscillation axis orientated transversally to the enclosures' bodies or boxes, and a pair of adjustment bars for rear connection of the enclosures in line and to set and fix the inclination of each enclosure by its oscillation on this rotation axis, created by the link bars.
  • the mechanical system proposed here can be used to support or lift and connect a line (line array) of loudspeaker enclosures 10, each with a body or box 11 with two side walls 12, a possible front cavity 13 with an emission slot at the end, and a rear wall 14, as well as to adjust the inclination between adjacent enclosures.
  • the system essentially includes a main suspension or support frame 15, a pair of link bars 16 to connect the enclosures at the side, a pair of adjustment bars 17 for the enclosures' rear connection and (splay) adjustment, and a support device 18 fitted on the rear wall of the enclosures and intended to hold, as well as lock/unlock, the pair of adjustment bars 17.
  • the main frame 15 can be made from tubular components connected to form a 4-sided structure, and can be connected, for example in telescopic form, to at least one extension frame 15'.
  • the main frame and extension frame are usually fitted with means for connecting a hoist for lifting when the line of enclosures must be suspended.
  • auxiliary bars 19 At the sides of the main frame 15, there are auxiliary bars 19 to connect the first of a line of enclosures; on the sides of the extension frame 18, two additional bars 20 can be fitted, each with a shackle 21 for connecting tie-lines or pull-back cables for the line of enclosures, or two bars 22, each fitted with a flange 23 with two holes for fitting one or two shackles 24, according to needs.
  • the pair of link bars 16 includes, as can be seen in Fig. 3 and 3a of the designs, an internal bar 25, to be fitted (for example with screws) to the relative side wall 12 of the enclosure's body or box, and an external bar 26, which can be fitted with a handle 26'.
  • the internal bar 25 has at least one hole at the top 27, a middle hole 28 and a bottom hole 29, whereas the external bar 26 has a top pin 30, middle pin 31 and bottom pin 32, which can have the same or different lengths.
  • the internal bar 25 is fixed to the body or box 11 level with the emission slot at the end of the enclosure's front cavity.
  • the pair of adjustment bars 17 includes, considering Fig. 4 and 4a of the designs, a left bar 33 and right bar 34, both of which have the same front toothing 35 and are turned through 180° to face each other and mesh into each other. Viewed vertically, the left bar 33 has a top hole 36 and a middle hole 37, whereas the right bar 34 has a slot 38 at its top end, a middle hole 39 and a bottom hole 40.
  • the two adjustment bars 33 and 34 are fitted together, with the possibility of parallel movement, by means of a bolt 41 that passes through the slot 38 of one bar 34 and is screwed into a self-locking nut 42 recessed in the back of the other bar 33 at the height of a hole 43.
  • Support device 18 includes a C-shaped component 44 with a bottom wall, which is fastened vertically, for example using screws, to the rear wall 14 of the body or box of an enclosure, and two side walls forming a channel 45 into which the adjustment bars 17 are fitted.
  • the device 18 also includes a sliding bolt 46, passing through a guide block 47 fitted on one side of the C-shaped component 44 and running crosswise to the parallel walls of this component.
  • the sliding bolt 46 is fitted with a grip knob 48 and can be moved from a retracted unlocked position - Fig. 5b, to a forward locked position -Fig. 5a - normally held by means of a relative return spring 49 and a safety lock, obtained by screwing a part 48' of the knob 48 into a threaded hole 50 in the head plate of the guide block 47.
  • Each loudspeaker enclosure is basically equipped with two pairs of side bars 16, part of which, the internal bar (25) is pre-fixed on the side of the body or box 11, and two pairs of parallel rear adjustment bars 17, each of which has a relative support device 18, which is also pre-fastened to the rear 14 of the body or box.
  • the first enclosure is connected to the main frame 15 by means of the additional bars 19, each fitting into the top hole 27 of the internal bar 25 of the pair of bars 16 and fastened on to the frame 15.
  • the enclosures are then linked in line using the external bar 26 of each pair of link bars 16. This is done by fitting - Fig. 2 and 3a - the top pin 30 and middle pin 31 of each external bar 26 respectively into the middle hole 28 and bottom hole 29 of the internal bar on the uppermost enclosure and its bottom pin 32 into the top hole 27 of the internal bar mounted on the next enclosure down. Once they are connected, the internal 25 and external 26 bars are tightly fastened to prevent them separating.
  • This fastening is carried out by means of a locking element 51 operating like a guillotine on one of the pins (31) of the external bar 26, to prevent it from sliding out of the relative hole (29) in the internal bar 25, said element being held in the locked position by means of a relative spring 52 -Fig. 3.
  • connection of the bottom pin 32 of the external bar with the top hole 27 of an internal bar 25 of the next enclosure forms a oscillation axis, orientated across the body of the enclosure and enabling the inclination of the latter to be adjusted as required
  • Inclination is adjusted by means of the pair of toothed bars 17.
  • One of these bars (for example 33) is fitted to the support device 18 mounted on the body or box of a first enclosure 10, and the other bar 34 fitted to the support device 18 of the next enclosure adjacent to the first one.
  • Bars 33 and 34 are fixed to the relative support device by means of a sliding bolt 46 passing through a hole in the bars in question.
  • the pitch of the teeth of the adjustment bars 33 and 34 is preset in order that moving one bar along the other by one tooth gives a certain variation in the inclination (for example of 0.5°) of one enclosure in relation to the other, in order to precisely set the vertical orientation of the enclosures within a multiple set-up.
  • the pair of linking bars 16 includes an internal bar 125 with a top hole 127 and two front pins (one middle 128 and one bottom 129), whereas the external bar 126 has a top slot 130, a middle slot 131 and a bottom hole 132.
  • the middle pin 128 and bottom pin 129 of the internal bar 125 pass (and can slide) through the top slot 130 and middle slot 131 of the external bar 126 and have a head that keeps the external bar permanently attached to the internal bar.
  • This type of set-up offers the advantage of enabling the external bar (thanks to its slot) to slide along the internal bar fixed to the enclosure and be moved into a retracted position, level with and coinciding with the internal bar, without protruding downwards from the enclosure's body when it's transported and when it's not connected to another one, and in a extended position, protruding downwards from the enclosure's body when it's placed on another one and connected to it.
  • connection of enclosures one above the other is therefore carried out - Fig. 6 - by sliding the external bar of an upper enclosure until its bottom hole 132 coincides with the top hole 127 of the following enclosure's internal bar - Fig. 6a- in order to be able to fit a safety pin 151 into the matching holes, fixing the connection and setting the axis of oscillation of the relative enclosure.
  • the pair of link bars once again includes an internal bar 225 and an external bar 226, which are matched and joined face to face again by means of two front pins, 228 and 229, coming out of the internal bar and fitting into the top slot 230 and middle slot 231 on the external bar 226.
  • the internal bar 225 also has a top hole 227 and bottom hole 227', whereas the external bar 226 has a bottom hole 232.
  • two pins 260 and 260' pass and emerge from the rear outwards. These pins can be moved from a retracted unlocked position, normally held by a return spring 261, 261' for each pin, to a forward locked position controlled by a device 262, mounted on the rear side of the internal bar, which can be used from the outside, from the front of the external bar 226.
  • this device 262 is of the "cremone" type, is controlled by means of a key 263 and manages to move, by means of wedge-shaped link and thrust elements 264, the pins for their movement from the retracted unlocked position to the forward locked position, against the effect of the return springs.
  • the control device 262 includes (in a box 270) a cog - not shown - which is moved by a key that controls two half-shafts 272, facing in opposite directions and each bearing a thrust cam 273 at the level of a corresponding pin 260, 260'. This means that turning the said half-shafts (and with them the thrust cams) results in a corresponding movement of the pins from the retracted unlocked position to the forward locked position against the action of the relative return springs.
  • the two pins can be move simultaneously, or one pin (normally the lower one) can be moved before the other.
  • This staggered movement of the pins 260 and 260' can be achieved, for example, with an appropriate choice of the relative wedge-shaped (264) or cam (273) thrust devices, or by using two pins of different lengths.
  • the external bar 226 can be moved to the level of the internal bar 225, in order to prevent it protruding below the body of the enclosure, to avoid obstructing its transport or standing.
  • the external bar 226 of the uppermost enclosure is moved downward until its bottom hole 232 coincides with the top pin 260 mounted in the internal bar 225 of the enclosure immediately below.
  • the control device 262 is used to move the pins 260, 260' forward into the locked position on the internal bar.
  • the top pin 260 will enter the bottom hole 232 of the external bar 226 of the uppermost enclosure, forming the oscillation axis of one enclosure on the other. So, the bottom pin 260' will enter a slot in the external bar 226 fitted to the internal bar 225 carrying the pins themselves, thus forming the mechanical connection of the adjacent enclosures.
  • control device 262 To disconnect the enclosures later, it is sufficient to carry out the opposite procedure with control device 262 to return the pins to the retracted unlocked position.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP04425744A 2003-10-10 2004-10-05 Mechanisches System zur Aufhängung,Verbindung,Absenkung der linearen Anordnungen von Lautsprechernboxen Withdrawn EP1523214A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS20030094 2003-10-10
ITBS20030094 ITBS20030094A1 (it) 2003-10-10 2003-10-10 Sistema meccanico di sospensione, collegamento ed angolazione di diffusori acustici in linea.

Publications (2)

Publication Number Publication Date
EP1523214A2 true EP1523214A2 (de) 2005-04-13
EP1523214A3 EP1523214A3 (de) 2007-01-03

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Family Applications (1)

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EP04425744A Withdrawn EP1523214A3 (de) 2003-10-10 2004-10-05 Mechanisches System zur Aufhängung,Verbindung,Absenkung der linearen Anordnungen von Lautsprechernboxen

Country Status (2)

Country Link
EP (1) EP1523214A3 (de)
IT (1) ITBS20030094A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7201251B1 (en) * 2002-07-11 2007-04-10 Derrick Lynn Baird Modular speaker cabinet
US8189822B2 (en) 2009-06-18 2012-05-29 Robert Bosch Gmbh Modular, line-array loudspeaker
DE102008017507B4 (de) * 2007-05-04 2012-09-06 Martin Kling Aus mehreren Lautsprechern mit Schnappverbindungen zusammengestellte Lautsprechergruppe
EP3675511A1 (de) * 2018-12-27 2020-07-01 Nexo Verschalung einer lautsprecherbox, die eine verbindungsvorrichtung zu einer anderen lautsprecherbox umfasst, und lautsprecherbox, die eine solche verschalung umfasst
CN112672241A (zh) * 2020-12-17 2021-04-16 斯贝克电子（嘉善）有限公司 一种具有高效吊挂***的组合音箱
US20220178392A1 (en) * 2019-03-29 2022-06-09 L-Acoustics Enclosure fastening module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301897A1 (fr) * 1975-02-22 1976-09-17 Elektroakusztikai Gyar Monture orientable pour transducteurs electroniques
DE4025627A1 (de) * 1989-08-15 1991-02-21 Klipsch & Ass Lautsprechermodul
EP0521655A1 (de) * 1991-06-25 1993-01-07 Yugen Kaisha Taguchi Seisakusho Lautsprecher-Cluster
EP1143765A2 (de) * 2000-04-07 2001-10-10 d & b audiotechnik Aktiengesellschaft Verbindungseinheit zum winkeleinstellbaren Verbinden mindestens zweier Lautsprecherboxen, und entsprechend verbundene Lautsprecherboxen
WO2002067243A2 (en) * 2001-02-20 2002-08-29 Meyer Sound Laboratories, Incorporated Rigging system for loudspeakers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301897A1 (fr) * 1975-02-22 1976-09-17 Elektroakusztikai Gyar Monture orientable pour transducteurs electroniques
DE4025627A1 (de) * 1989-08-15 1991-02-21 Klipsch & Ass Lautsprechermodul
EP0521655A1 (de) * 1991-06-25 1993-01-07 Yugen Kaisha Taguchi Seisakusho Lautsprecher-Cluster
EP1143765A2 (de) * 2000-04-07 2001-10-10 d & b audiotechnik Aktiengesellschaft Verbindungseinheit zum winkeleinstellbaren Verbinden mindestens zweier Lautsprecherboxen, und entsprechend verbundene Lautsprecherboxen
WO2002067243A2 (en) * 2001-02-20 2002-08-29 Meyer Sound Laboratories, Incorporated Rigging system for loudspeakers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7201251B1 (en) * 2002-07-11 2007-04-10 Derrick Lynn Baird Modular speaker cabinet
DE102008017507B4 (de) * 2007-05-04 2012-09-06 Martin Kling Aus mehreren Lautsprechern mit Schnappverbindungen zusammengestellte Lautsprechergruppe
US8189822B2 (en) 2009-06-18 2012-05-29 Robert Bosch Gmbh Modular, line-array loudspeaker
EP3675511A1 (de) * 2018-12-27 2020-07-01 Nexo Verschalung einer lautsprecherbox, die eine verbindungsvorrichtung zu einer anderen lautsprecherbox umfasst, und lautsprecherbox, die eine solche verschalung umfasst
FR3091447A1 (fr) * 2018-12-27 2020-07-03 Nexo Armature d’enceinte acoustique comprenant un dispositif de connexion à une autre enceinte acoustique et enceinte acoustique comportant une telle armature
US10897661B2 (en) 2018-12-27 2021-01-19 Nexo Loudspeaker cabinet frame comprising a connection device for connecting to another loudspeaker cabinet and a loudspeaker cabinet comprising such a frame
US20220178392A1 (en) * 2019-03-29 2022-06-09 L-Acoustics Enclosure fastening module
CN112672241A (zh) * 2020-12-17 2021-04-16 斯贝克电子（嘉善）有限公司 一种具有高效吊挂***的组合音箱
CN112672241B (zh) * 2020-12-17 2022-08-02 斯贝克电子（嘉善）有限公司 一种具有高效吊挂***的组合音箱

Also Published As

Publication number Publication date
EP1523214A3 (de) 2007-01-03
ITBS20030094A1 (it) 2005-04-11

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