WO2024236830A1 - Support de haut-parleur - Google Patents

Support de haut-parleur Download PDF

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Publication number
WO2024236830A1
WO2024236830A1 PCT/JP2023/032651 JP2023032651W WO2024236830A1 WO 2024236830 A1 WO2024236830 A1 WO 2024236830A1 JP 2023032651 W JP2023032651 W JP 2023032651W WO 2024236830 A1 WO2024236830 A1 WO 2024236830A1
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WO
WIPO (PCT)
Prior art keywords
support
speaker
sand
speaker stand
sound
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.)
Ceased
Application number
PCT/JP2023/032651
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English (en)
Japanese (ja)
Inventor
賢太郎 沖野
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.)
Tiglon Co Ltd
Original Assignee
Tiglon Co Ltd
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 Tiglon Co Ltd filed Critical Tiglon Co Ltd
Publication of WO2024236830A1 publication Critical patent/WO2024236830A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones

Definitions

  • the present invention relates to a speaker stand for mounting speakers.
  • Speaker stands are a type of audio equipment used to place speakers on. However, speaker stands are not simply a means of placing speakers on; they also function as vibration-damping devices that keep the speakers away from the floor or other surface on which they are placed, thereby suppressing the generation of noise caused by resonance. They also function as height adjusters, allowing the speaker to be placed at a listening point that is suitable for the user's (listener/audience's) ears, for example. Although the quality of the vibration-damping function varies depending on the grade of the speaker, speaker stands can be used to adjust the sound quality through this vibration-damping function and height adjustment.
  • a known type of speaker stand is one that mainly consists of a top plate on which the speaker is placed, a support pillar, and a bottom plate.
  • sand or other materials are sometimes filled inside the support pillar to adjust the center of gravity and suppress resonance inside the support pillar (for example, Patent Documents 1 to 5).
  • Patent No. 7261455 JP 2008-211751 A Publicly-known Utility Model Publication No. 54-137339 Publicly-Published Utility Model Application No. 51-11039 Japanese Patent Application Publication No. 08-79867
  • the present invention was made based on these circumstances, and its purpose is to provide a speaker stand with new functions that have never been seen before.
  • the purpose is to realize a new speaker stand (room tuning stand) that combines room tuning with a speaker stand.
  • the gist of the present invention is as follows.
  • the speaker stand of the present invention comprises a top plate on which a speaker is placed, a cylindrical support pillar having an internal cavity and supporting the top plate from below, and a bottom plate on which the support pillar is erected, and further comprises a sound-absorbing material disposed inside the support pillar, a sand-like material filled inside the support pillar, an opening communicating with the cavity inside the support pillar, and a space inside the support pillar communicating from the opening to the sound-absorbing material, and is characterized in that it has an added room tuning function.
  • the speaker stand of the present invention comprises a top plate on which a speaker is placed, a cylindrical support pillar having an internal cavity and supporting the top plate from below, and a bottom plate on which the support pillar is erected, and further comprises a sound-absorbing material disposed on the bottom side inside the support pillar, a sand-like material filled inside the support pillar above the sound-absorbing material, an opening provided on the upper side of the support pillar that communicates with the cavity inside the support pillar, and a space inside the support pillar that communicates from the opening along the inner wall of the support pillar to the sound-absorbing material, and is characterized in that it has an added room tuning function.
  • the sand-like material is filled inside the support in a flexible bag or container.
  • Ribs are provided on the inner wall of the support, and the ribs form a space between the inner wall of the support and the bag or container containing the sand-like material, which space runs along the inner wall of the support and connects to the sound-absorbing member.
  • the support further includes a stopper member disposed above the sand-like material inside the support and applying internal pressure to the sand-like material.
  • a speaker stand is provided with a top plate, support and bottom plate on which speakers are placed. Sound absorbing material is placed inside the support, and sand-like material is filled in.
  • the speaker stand is also configured to have a space that connects from the opening to the sound absorbing material, thereby adding room tuning functionality to the speaker stand. As a result, it is possible to provide a new and unprecedented speaker stand (room tuning stand) that combines room tuning with the speaker stand.
  • FIG. 1 is a perspective view of a speaker stand according to an embodiment of the present invention.
  • 2 is a perspective view showing an opening provided on the upper side of the speaker stand.
  • FIG. FIG. 2 is a diagram showing the internal configuration of the speaker stand.
  • 3A to 3C are cross-sectional views of each part of the support pillar of the speaker stand.
  • 4 is an explanatory diagram of the sand-like material to be filled into the support of the speaker stand.
  • FIG. FIG. 2 is a perspective view showing the speaker stand in use.
  • FIG. 11 is a perspective view of an embodiment in which the speaker stand is used as a room tuning accessory.
  • the speaker stand 1 of this embodiment is mainly composed of a top plate 2, which is a top plate member, a support 3, and a bottom plate 4, which is a bottom plate member.
  • a top plate 2 which is a top plate member
  • a support 3 which is a support 3
  • a bottom plate 4 which is a bottom plate member.
  • the top plate 2 is placed on the top of the speaker stand 1, and the speaker S is placed on its upper surface (see FIG. 6).
  • the top plate 2 is formed from a plate-shaped member with a rectangular planar shape.
  • the planar shape of the top plate 2 may be other than rectangular.
  • the top plate 2 can be preferably made of a laminate of multiple plate-shaped members made of different materials.
  • the top plate 2 is made of an iron plate (steel plate) with a thickness of 6 mm on the upper layer and an aluminum plate with a thickness of 3 mm on the lower layer, which are bonded together. The thickness may be changed as appropriate.
  • the size of the planar shape may also be determined as appropriate to fit the speaker S.
  • the speaker S may be placed directly on the top surface of the top plate 2, or other members may be interposed between them.
  • the other members may be insulators, non-slip spacers, spikes, etc.
  • a means for fixing the speaker S to the top plate 2 may be added.
  • the tabletop 2 is detachably connected to the support 3 by a fixing means.
  • an opening 22 is provided between the tabletop 2 and the support 3 with a spacer 21 interposed therebetween.
  • the support 3 is connected to the center of the back surface of the tabletop 2 via the spacer 21, and supports the tabletop 2 from below.
  • the length of the spacer 22 is set so that the gap between the tabletop 2 and the support 3 is, for example, 10 mm.
  • This opening 22 communicates with a cavity 32 inside the support, which will be described in detail later.
  • An example of a fixing means for fixing the top plate 2 and the support 3 is a screw 23. It is preferable to use a flat head screw so that the head of the screw 23 is not higher than the surface of the top plate 2.
  • An example of a spacer 21 is a tap with a female thread on one end and a male thread on the other end. If the external shape is hexagonal, it is easy to attach with a wrench or the like.
  • the screw 23 is inserted into an opening hole formed in the top plate 2 and screwed into the female thread of the tap as the spacer 21 arranged on the back side of the top plate 2.
  • the top plate 2 and the support 3 are then connected by screwing the male thread of the tap into a screw hole 31 (see FIG. 4(a)) formed in the support 3.
  • the spacer 21 and the screw 23 are preferably made of metal.
  • the support 3 is formed of a cylindrical member with a hollow space 32 inside.
  • Figs. 1 to 4 show the support 3 formed of a cylindrical member with a rectangular prism, but it may be of a shape other than a rectangular prism. Examples of other shapes include a circular cylinder, an elliptical cylinder, a triangular prism, a polygonal prism, and a streamlined cylinder.
  • the orientation of the rectangular prism may also be rotated, for example, by 45 degrees so that the corners face forward.
  • an opening 22 is provided between the top plate 2 and the support 3. Therefore, the hollow space 32 inside the support communicates with the opening 22, and further communicates with the external space via the opening 22.
  • the material of the support 3 is preferably a magnesium alloy. More preferably, it is an alloy in which manganese is mixed into magnesium to improve its strength, or a magnesium alloy (AZ31) containing 3% aluminum and 1% zinc. Supports 3 made of a magnesium alloy have excellent vibration absorption properties.
  • the material of the support 3 is not limited, and other materials may be used. For example, aluminum, iron, wood, etc.
  • an example of the cross-sectional size is 60 mm x 60 mm, and the thickness is 2 to 3 mm.
  • An example of the length of the support 3 is 280 mm to 1100 mm.
  • a variation of support 3 with different lengths, such as 700 mm, 800 mm, and 900 mm may be prepared, and the length may be selected according to the space (such as a room) in which the speaker S is installed.
  • the wall surface (inner wall) inside the support is provided with ribs 33 to suppress standing waves.
  • Standing waves occur in indoor spaces when sound is output from the speaker S, causing the sound to become muffled.
  • Standing waves inside the support also cause resonance inside the support.
  • the ribs 33 to suppress standing waves are preferably formed as fin-shaped ribs 33 that stand up toward the inside, for example, from the upper end to the lower end of the support 3.
  • multiple ribs 23 are arranged so as to be spaced apart on the inner wall of the support 3.
  • four ribs 33 are preferably arranged at equal intervals on each side of the rectangular inner wall.
  • grooves 34 may be formed on the outer surface of the support 3 to enhance the design of the speaker stand 1, for example.
  • the support 3 is formed by integral molding, including the cylindrical support body, the ribs 33, the portion forming the screw holes 31 for connecting the spacer 21, the surface grooves 34, and the like.
  • An example of integral molding is extrusion molding.
  • the bottom plate 4 is disposed at the lower end of the support 3 and serves as a base for erecting the support 3.
  • the bottom plate 4 is formed of a plate-shaped member having a rectangular planar shape.
  • the planar shape of the bottom plate 4 may be other than a rectangular shape.
  • the bottom plate 4 can be preferably configured by laminating a plurality of plate-shaped members of different materials.
  • the bottom plate 4 is configured by laminating an iron plate (steel plate) having a thickness of 9 mm on the upper layer side and an aluminum plate having a thickness of 2 mm on the lower layer side.
  • the thickness and size of the planar shape can be changed as appropriate, but stability can be ensured by making it heavier than the top plate 2.
  • the top plate 2 and the bottom plate 4 are made of a different material from the support 3. It is preferable to raise the bottom plate 4 above the installation surface such as the floor by arranging spikes 41 at the four corners, for example. This suppresses vibration and allows the speaker stand 1 to be installed stably.
  • the bottom plate 4 is detachably connected to the support 3 by a fixing means. There is no opening between the bottom plate 4 and the support 3, and the bottom plate 4 and the support 3 are directly connected. However, a sealant or the like may be sandwiched between them to ensure airtightness.
  • a fixing means for fixing the bottom plate 4 and the support 3 is a screw 23 such as a flat head screw, similar to the top plate 2. The screw 23 is inserted into an opening hole formed in the bottom plate 4 and screwed into a screw hole 31 (see FIG. 4(a) for the shape) formed at the lower end of the support 3, thereby connecting the bottom plate 4 and the support 3 (not shown).
  • sound absorbing material 35, sand material 36, and stopper material 37 are arranged in that order from the bottom side to the top side.
  • the sound absorbing material 35, sand material 36, and stopper material 37 are arranged so that the layers are in contact with each other, but a configuration in which another material is interposed between them is not excluded.
  • the sound-absorbing member 35 is made of a material that has sound-absorbing properties.
  • One example of the material is felt.
  • materials that are also used as room tuning materials are preferable.
  • the felt material used in room tuning materials manufactured by Escart is suitable.
  • the sound-absorbing member 35 is formed into a flat cubic shape. In particular, as shown in FIG. 4(d), it is preferable that the contour is in contact with the tip of the rib 33 inside the support. This allows a space 38 to be secured between the ribs 33. This space 38 acts as a sound propagation space as described later, and in combination with the sound-absorbing properties of the sound-absorbing member 35, the room tuning function is realized.
  • the sound-absorbing member 35 may be a multiple layer of similar shapes stacked one on top of the other, or may be a single member with its thickness adjusted. In the example of FIG. 3, two sound-absorbing members 35 are arranged, but the number may be changed to adjust the room tuning properties. If the support 3 is a quadrangular prism, the preferred shape is a cube, but other shapes such as a cylinder, triangular prism, or polygonal prism may also be used depending on the shape of the support 3.
  • the sand-like material 36 is not directly filled in, but is placed in a bag and filled inside the support.
  • the spaces 38 between the ribs 33 are not filled with the sand-like material 36, and a space 38 that is connected vertically can be secured.
  • this space 38 contributes to realizing the room tuning function.
  • Another advantage of filling the space in a bag is that the speaker stand 1 can be assembled and disassembled without spilling the sand-like material 36.
  • a preferred example of the sand-like material 36 is silica sand, and more preferably, No. 7 silica sand. Of course, fine particles other than silica sand may be used as long as they are sand-like.
  • the bag in which the sand-like material 36 is placed is made of a flexible material. It is preferable that the bag has transparency/semi-transparency so that the sand-like material 36 inside can be seen. Specifically, the bag is made of a resin such as vinyl. As shown in FIG. 5, bags 36a containing the sand-like material 36 may be prepared in different capacities. In the large size bag shown in FIG.
  • the bag 36a is made long and the opening is sealed, for example, by heat sealing, after the sand-like material 36 is placed in the bag.
  • the bag 36a cannot be deformed and it becomes difficult to place the bag 36a inside the support. Therefore, if the bag 36a is filled with about half of its maximum capacity so that the sand-like material 36 can flow inside the bag 36a, it becomes easier to fill the bag 36a as it is inside the support.
  • two bags of large-sized sand are filled inside the support to adjust the center of gravity and suppress resonance inside the support.
  • the small-sized sand which has a roughly rectangular planar shape as shown in FIG.
  • the stopper member 37 holds the bag 36a containing the sand-like material 36 inside the support, preventing the sand-like material 36 and the bag 36a from moving. There is concern that if the sand-like material 36 and the bag 36a move inside the support, it will affect the sound quality. There is also concern that the surface of the bag 36a will rub against the ribs 33 and be torn. For this reason, the stopper member 37 is used to press down from above and apply internal pressure.
  • the stopper member 37 is preferably made of an elastic material. Specifically, it is rubber. As an example, the stopper member 37 is formed into a cubic shape. In particular, as shown in FIG.
  • the contour of the stopper member 37 contacts the tip of the rib 33 inside the support. This allows a space 38 to be secured between the ribs 33. Furthermore, the stopper member 37 is fixed by frictional resistance with the tip of the rib 33, and the state in which the sand-like material 36 is held down can be maintained. In addition, the elasticity of the stopper member 37 makes it easy to remove the sand-like material 36 from inside the support when changing the amount of the sand-like material 36. In the example of FIG. 3, a single stopper member 37 is placed, but members of a similar shape may be stacked one on top of the other.
  • the support 3 is a square prism, a cubic shape is preferable, but other shapes such as a cylindrical shape, a triangular prism, or a polygonal prism may be used depending on the shape of the support 3.
  • the direction of the stopper member 37 may also be the same as that of the sound absorbing member 35, for example. Conversely, the direction of the sound absorbing member 35 may be the same as that of the stopper member 37.
  • the speaker stand 1 described above may be sold as a finished assembled product, or may be sold in a state where each part is disassembled so that the user can assemble it.
  • the user fits the sound absorbing member 35 inside the support 3 from the bottom side, and joins the bottom plate 4 to the support 3.
  • the user fills the support 3 with sand material 36 while it is still in the bag 36a from the top side, and then fits the stopper member 37 and pushes it in with a stick or the like.
  • the amount of sand material 36 filled can be adjusted by the number of bags 36a placed inside the support.
  • the top plate 2 is joined via the spacer 21.
  • the steps are carried out in reverse, but since the sand material 36 is in the bag 36a, it will not spill out, making the work easier.
  • the speaker stand 1 configured as described above has (1) a vibration-damping function that suppresses the generation of noise due to resonance by separating the speaker S from the installation surface such as the floor, (2) a height adjustment function that positions the speaker S at a listening point suitable for the user's ears, and (3) a sound quality adjustment function that adjusts the center of gravity and suppresses resonance inside the pillar by filling the inside of the pillar with sand-like material 36.
  • a vibration-damping function that suppresses the generation of noise due to resonance by separating the speaker S from the installation surface such as the floor
  • a height adjustment function that positions the speaker S at a listening point suitable for the user's ears
  • a sound quality adjustment function that adjusts the center of gravity and suppresses resonance inside the pillar by filling the inside of the pillar with sand-like material 36.
  • the sound output from the speaker S remains as standing waves everywhere in the space (room, etc.) where the speaker S is installed, and in order to absorb this, a separate room tuning material is currently installed to soak up the excess reverberation.
  • effective room tuning materials are often not introduced even if they do improve sound quality for various reasons, such as their large size and space-consuming nature, their high cost, and the fact that they are not desirable for design reasons.
  • the speaker stand 1 of this embodiment is extremely effective as a stand that can solve these current problems.
  • a preferred example of the speaker stand 1 according to the embodiment of the present invention has been described above, but the order of the sound absorbing material 35, sand-like material 36, and stopper material 37 arranged inside the support, and the position of the opening 22 do not necessarily have to be the above-mentioned configuration (order, position).
  • the member on which the speaker is installed is called the "top plate”, but it is sufficient if it has a surface on which the speaker is installed, and for example, a top plate with a three-dimensional shape on the back side is also included.
  • the member on which the support is erected is called the "bottom plate", but it is sufficient if it is a base member on which the support is erected, and a three-dimensional shape is also included in the bottom plate.
  • the rib 33 that suppresses standing waves is used, but another member may be added to ensure the space 38.
  • the opening 22 is formed using the spacer 21, but it is not necessarily required to use the spacer 21 as long as an opening through which sound can propagate is ensured.
  • the speaker stand 1 thus exhibits excellent room tuning capabilities and may be used as a room tuning accessory without installing a speaker S.
  • the speaker stand 1 of this embodiment is an audio accessory that can be used as both a speaker stand and for room tuning.
  • four speaker stands 1 (two sets) may be prepared, with one set used as a stand with a speaker S installed, and another set used as a room tuning accessory without installing a speaker S.
  • the top plate 2 may be formed into a lid-like shape and sold as a room tuning accessory 5.
  • a mesh-like opening 22 may be formed on the surface of the lid-like top plate 2, and the spacer 21 may be omitted.
  • the room tuning accessory 5 according to this embodiment can be expressed as follows. (1) A room tuning accessory including a cylindrical support having an internal cavity and a base member on which the support is erected, A sound absorbing member disposed inside the support; A sand-like material filled inside the support; an opening communicating with the cavity within the strut; A room tuning accessory further comprising: a space inside the pillar, the space communicating from the opening to the sound-absorbing member.
  • a room tuning accessory including a cylindrical support having an internal cavity and a base member on which the support is erected, A sound absorbing member disposed on the bottom side inside the support; A sand-like material is filled above the sound absorbing member inside the support; An opening provided on an upper side of the support and communicating with a cavity inside the support; A room tuning accessory further comprising: a space inside the pillar, the space extending along the inner wall of the pillar from the opening to the sound-absorbing member.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un support de haut-parleur ayant une nouvelle fonction inédite en plus. En particulier, un nouveau support de haut-parleur (support de réglage de pièce) est réalisé dans lequel un réglage de pièce est intégré au support de haut-parleur. La solution porte sur un support de haut-parleur qui comprend : une plaque supérieure sur laquelle un haut-parleur doit être installé ; un pilier de support qui est formé en une forme cylindrique ayant une cavité à l'intérieur de celui-ci et qui supporte la plaque supérieure par en dessous ; et une plaque inférieure sur laquelle le pilier de support est érigé. Le support de haut-parleur est caractérisé en ce qu'il comprend en outre un élément d'absorption sonore disposé à l'intérieur du pilier de support, un matériau sableux chargé à l'intérieur du pilier de support, une ouverture reliée à la cavité dans le pilier de support, et un espace qui relie l'ouverture et l'élément d'absorption sonore dans le pilier de support, et en ayant ajouté à celui-ci une fonction d'accord de pièce.
PCT/JP2023/032651 2023-05-18 2023-09-07 Support de haut-parleur Ceased WO2024236830A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023-082276 2023-05-18
JP2023082276A JP7353697B1 (ja) 2023-05-18 2023-05-18 スピーカースタンド

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WO2024236830A1 true WO2024236830A1 (fr) 2024-11-21

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PCT/JP2023/032651 Ceased WO2024236830A1 (fr) 2023-05-18 2023-09-07 Support de haut-parleur

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WO (1) WO2024236830A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334387U (fr) * 1989-08-11 1991-04-04
JPH08237781A (ja) * 1995-02-27 1996-09-13 Aisin Takaoka Ltd スピーカスタンド
JP2020136852A (ja) * 2019-02-18 2020-08-31 Ｋｒｙｎａ株式会社 スピーカ用スタンド

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334387U (fr) * 1989-08-11 1991-04-04
JPH08237781A (ja) * 1995-02-27 1996-09-13 Aisin Takaoka Ltd スピーカスタンド
JP2020136852A (ja) * 2019-02-18 2020-08-31 Ｋｒｙｎａ株式会社 スピーカ用スタンド

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JP7353697B1 (ja) 2023-10-02

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