WO1998036613A2 - Vorrichtung zur montage wenigstens eines akustischen und/oder optischen bauteils und damit ausgerüstete geräte - Google Patents
Vorrichtung zur montage wenigstens eines akustischen und/oder optischen bauteils und damit ausgerüstete geräte Download PDFInfo
- Publication number
- WO1998036613A2 WO1998036613A2 PCT/DE1998/000439 DE9800439W WO9836613A2 WO 1998036613 A2 WO1998036613 A2 WO 1998036613A2 DE 9800439 W DE9800439 W DE 9800439W WO 9836613 A2 WO9836613 A2 WO 9836613A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- component
- frame
- acoustic
- flat
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Definitions
- the invention relates to a device of the type specified in the preamble of claim 1 and devices equipped with such devices.
- Acoustic and / or optical devices such as CD players and / or recording devices, tape recorders, amplifiers, tuners, Nideo devices etc. are usually with the help of coil springs, rubber buffers, metal cones (spikes) or the like. parked on a pad. This should serve the purpose of protecting the components in the devices from external mechanical influences, e.g. to decouple the structure-borne or airborne noise, vibrations of a mains transformer or the like.
- individual components within a housing construction are sometimes also supported in this way.
- the invention is therefore based on the object of designing the device of the type described at the outset in such a way that it can also be produced in a simple manner by machine and yet has the same positive effect as the known cable suspension.
- the invention has the essential advantage that the flat element can be easily cut to the desired size and connected to the substructure by gluing, welding or otherwise. It does not matter whether the element is designed as a base on which an assembly or a finished one Device is supported, or whether the carrier in turn or the like in a housing. installed or the component is firmly attached to the carrier by means of the element.
- FIG. 1 shows a roughly schematic vertical section of a device according to the invention for mounting a component on a base
- Figure 2 is a plan view of the device of Figure 1 with the component removed.
- FIGS. 1 and 2 a second embodiment of the device according to the invention
- FIG. 5 shows a roughly schematic vertical section of an embodiment of the invention which essentially corresponds to the embodiment according to FIG. 1, but in another application variant;
- FIG. 6 to 8 roughly schematic longitudinal sections through three exemplary embodiments in which the device according to the invention is used to install a component in the substructure of an electroacoustic transducer
- a carrier 2 is arranged on a preferably flat base 1 and is used to mount an acoustic and / or optical component 3 (not shown in more detail).
- acoustic and / or optical is understood for the purposes of the present invention that it is components that are used for the transmission or processing of analog or digital electrical signals, which in the broadest sense in the Recording or reproduction of sound and / or light are involved and / or serve to convert these signals into acoustic and / or optical signals and vice versa.
- components for the purposes of the present invention includes, on the one hand, individual electrical and electronic components and, on the other hand, assemblies produced therefrom, generally referred to as hi-fi components, such as amplifier modules, electroacoustic converters, crossovers, drives of turntables, CD -Recording and / or playback devices and tape recorders or the like as well as complete devices, in particular hi-fi devices such as amplifiers (preamplifiers, power amplifiers), tuners, control devices, loudspeakers, microphones or the like for sound and / or video recordings and - reproductions understood.
- hi-fi components such as amplifier modules, electroacoustic converters, crossovers, drives of turntables, CD -Recording and / or playback devices and tape recorders or the like as well as complete devices, in particular hi-fi devices such as amplifiers (preamplifiers, power amplifiers), tuners, control devices, loudspeakers, microphones or the like for sound and / or video recordings and - reproductions understood.
- the carrier 2 contains an annular frame 4 which is closed in the circumferential direction and which is preferably provided with a flat upper bearing surface 5 and an underside 6 lying parallel to this and resting on the base 1.
- a holder is attached in the form of a flat element, which in a preselected direction, here e.g. in the direction of an axis 8 of the frame 4 which runs perpendicular to the support surface 5, resiliently and in the directions perpendicular thereto, i.e. here parallel to the bearing surface 5, is essentially rigidly attached.
- the element 7 is connected to the carrier 2 in the exemplary embodiment along a circumferential, closed edge section 9.
- a foot 10 is arranged, which here is connected or connectable to the element .7.
- the foot 10 can either be firmly connected to the element 7 by gluing, welding or the like, or detachably with the aid of screw, pin or other connections, an adhesive connection being assumed in FIGS. 1 and 2 for the sake of simplicity , which is currently perceived as the best type of connection.
- the flat element 7 is best made of a textile fabric which has a low bending stiffness in the direction of the axis 8 and has a high tensile strength in all directions perpendicular to it.
- the element 7 is placed in a prestressed state on the carrier 2 or the frame 4 and then attached to the frame 4 while maintaining a preselected prestress.
- edge regions of the element 7 projecting outwards beyond the frame 4 could be loaded with appropriate weights or the like. After later removal of the weights and attachment of the element 7, the edge regions could then be cut off along the circumference of the frame 4.
- Another, currently considered the best type of fastening is to form a circumferential groove in the support surface 5 of the frame 4, to first glue the element 7 to the frame 4 in a circumferential section located radially outside of the groove and then to form an O-ring. The like. Press into the groove to thereby generate a defined bias in the element 7.
- a single carrier 2 is shown with a single foot 10.
- component 3 e.g. an amplifier or tuner, depending on the size and weight can be supported on several such carriers 2 of the type described.
- the prestressing of the element 7 can also be set. The prestress is preferably selected in the order of magnitude of the proportion of the weight of the component 3 which is attributable to the individual element 7, although this is not absolutely necessary.
- the load on the element 7 after the assembly of the component 3 in the direction of the axis 8 should be such that, in the inevitable deflection of the element 7 shown in dashed lines in FIG. 1, neither the component 3, the frame 4 or that Element 7, element 7 touches the base 1.
- a major advantage of the device according to the invention is that the component 3 is suspended from the carrier 2 by means of the element 7 in such a way that it is transverse to the axis 8, i.e. is generally horizontal, essentially rigidly fixed, whereas in the direction of axis 8, i.e. usually vertical, can make slight movements.
- the always desired decoupling from the carrier 2 or from the support 1 is present in the vertical direction as before, while the fixation rigid in the horizontal direction vibrations perpendicular to the axis 8 and thus e.g. essentially prevented parallel to the scanning surface of a compact disc.
- the invention is based on the knowledge that many losses of detailed information in sound or light transmission or conversion must be attributed to the fact that the previous resilient mounting of the components also leads to a self-excited tendency to oscillate perpendicular to axis 8. This can e.g. a consequence of principle-related changes in the speed of a drive.
- FIGS. 3 and 4 differs from that of FIGS. 1 and 2 essentially in that a carrier 14 with a rectangular in plan view
- Frame 15 is provided. This is covered on an upper bearing surface 16 with a flat element 17, which here carries four feet 18 corresponding to the foot 10.
- Each foot 18 is preferably arranged in the region of a corner of the frame 15.
- the frame 15 could of course also be square or circular in plan view, and the strips or bars used to form the frame 15
- Rods can have square cross sections other than those shown. As Fig.
- the frame 4 is shown in a position rotated by 180 ° about a horizontal axis in comparison with FIG. 1.
- a foot 21, shown here rounded and fastened to the element 7, is supported on the base 1, while a component 22 is mounted on the underside 6 (FIG. 1) of the frame 4.
- FIG. 6 shows as an exemplary embodiment a dynamic, electroacoustic transducer system with a so-called cone membrane for complete devices such as conventional amplifiers, record players, CD players or the like, or also parts thereof, such as crossovers, power supplies or the like.
- the system contains, in a manner known per se, a permanent magnet 24 as part of a pot magnet 25 which forms an annular air gap 26 in which a voice coil 27 is mounted so as to be displaceable in the direction of an axis 28.
- a permanent magnet 24 as part of a pot magnet 25 which forms an annular air gap 26 in which a voice coil 27 is mounted so as to be displaceable in the direction of an axis 28.
- a funnel-shaped, mostly conical membrane 29 is rigidly attached to the front end of the voice coil 27 and carries out vibrations in time with the alternating current flowing through the voice coil 27 and generates sound waves in the surrounding air.
- a bracket 30 shown in the right part of FIG. 6 is generally used to center the membrane 29, so that the membrane 29 always remains exactly in the middle of the air gap 26 and does not rub. Transducer systems of this type are generally known and therefore do not need to be explained in more detail to the person skilled in the art.
- the holder 30 consists of an embossed fabric, which is usually impregnated or coated several times for additional stabilization, as a result of which a principle-related and acoustically disadvantageous inertia arises especially in the area of the zero position.
- the holder 30, is replaced analogously to the holders 7 and 19 according to FIGS. 1 to 5 by a holder in the form of a flat element 31, which is shown schematically in the left part of FIG. 6 and in analogy to FIGS. 1 to 5 a support in the form of a frame 32 is attached.
- the frame 32 is in turn mounted on a carrier which here, for example, the magnet arrangement or a is annular base plate 34 of a converter housing 33.
- the acoustic component is thus the membrane 29, and the element 7 is essentially ring-shaped, with its inner peripheral edge being fastened to the membrane 29 and with its outer peripheral edge being fastened to the frame 32 and preloaded accordingly.
- FIG. 7 a converter of a dome loudspeaker which is predominantly suitable for transmitting higher frequencies is shown in FIG. 7.
- the transducer in turn contains a permanent magnet 36 as part of a pot magnet 37, in the air gap 38 of which a voice coil 39 is mounted so as to be displaceable in the direction of an axis 40.
- a diaphragm 41 designed as a spherical cap is generally suspended, as shown in the right part of FIG. 7, with a holder 42 having a bead, which leads to the same problems as the holder 30 of the transducer according to FIG. 6.
- the holder 42 is replaced by a holder in the form of a prestressed, preferably made of a fabric, flat element 43, which is shown in the left part of FIG. 7 and on a carrier 44 connected to the magnet arrangement is attached.
- the element 43 is essentially ring-shaped.
- a further variant of the invention is created, starting from FIG. 7, by the manufacture of the membrane 41 and the element 43 from one piece, wherein a membrane is expediently provided instead of a membrane designed as a spherical cap, which consists of an essentially flat, flat element .
- the membrane would be attached to the carrier 44 in the manner described.
- FIG. 8 shows a dynamic transducer system as used in conventional headphones and microphones.
- the transducer system is provided with a voice coil arrangement 46 configured analogously to FIGS. 6 and 7, which has a magnet system, a voice coil and a membrane attached to it in a manner not shown.
- the voice coil arrangement 46 is screwed, glued or otherwise connected to a rigid bracket 47.
- the voice coil arrangement 46 to a carrier in the form of a frame 49 by means of a holder consisting of a flat element 48 and to connect the frame 49 to the bracket 47 forming the carrier.
- the acoustic component thus consists of the entire voice coil arrangement 46.
- exemplary embodiments are also possible for which this is not the case. It is only important that the holder is firmly connected to the respective carrier on at least two opposite sides. This is shown in FIGS. 9 and 10, in which the same reference numerals as in FIGS. 3 and 4 are used for the same parts.
- the flat element 17 is replaced here by at least one element 51, which is also flat, but strip-shaped, two such elements 51 being present in the exemplary embodiment.
- the “strip shape” results, for example, from the fact that the element 51 is designed in the manner of a band, belt, belt or the like.
- the elements 51 are prestressed in such a way that the described and desired effect results.
- the elements 51 can be fastened to the frame 15, for example with the aid of fastening screws 52, or otherwise connected to it.
- the elements 51 can each have a width that is smaller than half the frame width and can be attached at appropriate distances both from one another and from the associated side parts of the frame 15.
- the feet 18 can be connected to the elements 51 in the same way as with the element 17 3 and 4 to be connected.
- the embodiment shown with reference to FIGS. 9 and 10 allows the pretensioning force to be changed in a simple manner if necessary with the aid of an additional tensioning means.
- This contains e.g. two preferably cylindrical tie rods 53 which extend across the frame 15 and rest with their ends on two opposite side parts of the frame 15.
- the flat elements 51 are by means of the fastening screws 52 e.g. attached to the other two side parts of the frame and placed with a certain pretension over the economy bars 53 in such a way that their pretensioning force takes place by moving the tension bars 53 arranged between their undersides and the top of the frame 15 in one or the other, parallel to the elements 51 Direction can be changed.
- the direction of movement of the tension rods 51 is indicated in FIGS. 9 and 10 by double arrows 54.
- the flat element is designed as a flexible conductive plate and used for mounting at least one electronic component.
- All flexible foils that are already used as printed circuit boards for electrical and electronic components are particularly suitable here as circuit board materials, e.g. are offered on the market by the DuPont company under the "Kapton" brand.
- the element 17 according to FIG. 4 it would be possible, for example, to use the element 17 according to FIG. 4 to receive components in the form of coils and capacitors and to connect them to form a passive crossover or any other circuit, in which case the components consist of individual components and also are hung in the manner described.
- the invention is not limited to the exemplary embodiments described, which can be modified in many ways.
- a fabric for example, a suitably pre-tensioned knitted fabric or a plastic film could also be used be, whereby infinitely thin fabrics or foils would be ideal. In this case, only tensile forces transverse to the selected direction would be effective when the holder was loaded.
- the pretensioning force can be varied within comparatively wide limits, since it is essentially only necessary to prevent the holder from being bent under load except for the base located below it.
- the frames described do not necessarily have to be circular or rectangular or closed. It is particularly important in this context that the bracket analogous to FIGS.
Landscapes
- Mounting Components In General For Electric Apparatus (AREA)
- Optical Communication System (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU67175/98A AU6717598A (en) | 1997-02-17 | 1998-02-13 | Device for mounting at least one acoustic and/or optical component and appliances equipped therewith |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29702707.7 | 1997-02-17 | ||
DE29702707U DE29702707U1 (de) | 1997-02-17 | 1997-02-17 | Vorrichtung zur Montage wenigstens eines akustischen und/oder optischen Bauteils und damit ausgerüstete Geräte |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998036613A2 true WO1998036613A2 (de) | 1998-08-20 |
WO1998036613A3 WO1998036613A3 (de) | 1999-01-14 |
Family
ID=8036037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000439 WO1998036613A2 (de) | 1997-02-17 | 1998-02-13 | Vorrichtung zur montage wenigstens eines akustischen und/oder optischen bauteils und damit ausgerüstete geräte |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU6717598A (de) |
DE (1) | DE29702707U1 (de) |
WO (1) | WO1998036613A2 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4493471A (en) * | 1983-02-14 | 1985-01-15 | Mcinnis Donald E | Sound speaker stand for attenuating vibrations |
FR2600482A1 (fr) * | 1986-06-23 | 1987-12-24 | Sasaki Glass Kk | Systeme de haut-parleur |
GB2231464A (en) * | 1989-05-05 | 1990-11-14 | Linn Prod Ltd | Stand for audio loudspeakers |
EP0520385A2 (de) * | 1991-06-24 | 1992-12-30 | Dieter Pladwig | Anordnung von Lautsprechern |
US5197707A (en) * | 1991-07-29 | 1993-03-30 | Kohan Barry A | Isolation platform and method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54140527A (en) * | 1978-04-24 | 1979-10-31 | Mitsubishi Electric Corp | Speaker box support |
-
1997
- 1997-02-17 DE DE29702707U patent/DE29702707U1/de not_active Expired - Lifetime
-
1998
- 1998-02-13 AU AU67175/98A patent/AU6717598A/en not_active Abandoned
- 1998-02-13 WO PCT/DE1998/000439 patent/WO1998036613A2/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4493471A (en) * | 1983-02-14 | 1985-01-15 | Mcinnis Donald E | Sound speaker stand for attenuating vibrations |
FR2600482A1 (fr) * | 1986-06-23 | 1987-12-24 | Sasaki Glass Kk | Systeme de haut-parleur |
GB2231464A (en) * | 1989-05-05 | 1990-11-14 | Linn Prod Ltd | Stand for audio loudspeakers |
EP0520385A2 (de) * | 1991-06-24 | 1992-12-30 | Dieter Pladwig | Anordnung von Lautsprechern |
US5197707A (en) * | 1991-07-29 | 1993-03-30 | Kohan Barry A | Isolation platform and method |
Also Published As
Publication number | Publication date |
---|---|
WO1998036613A3 (de) | 1999-01-14 |
DE29702707U1 (de) | 1998-06-10 |
AU6717598A (en) | 1998-09-08 |
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