JP4161991B2 - Speaker stand - Google Patents

Description

  The present invention relates to a speaker stand in which a speaker system including a cabinet is installed at a position suitable for a user to listen to reproduced sound.

  In conventional speaker stands, the reaction that occurs in the speakers by supporting the cabinet firmly for the purpose of improving the playback sound from the installed speaker system (hereinafter sometimes abbreviated as speakers). Some attempt to suppress vibration due to force (Patent Document 1). In addition, even when firmly supported, the speaker stand is provided with a cushioning material for the purpose of preventing the vibration caused by the reaction force in the speaker system from propagating to the speaker stand and the installed floor. In some speaker stand structures, a material that hardly propagates vibration is used (Patent Document 2).

On the other hand, in the conventional speaker stand, the cabinet is lifted by the attractive force or repulsive force of the magnet in order to prevent vibration, so that the speaker system is softly supported to improve the vibration isolation and the acoustic characteristics. There are some that try to absorb the reaction force by attaching a rotatable car to the installation surface between the speaker system and the speaker stand (Patent Document 3).

Japanese Patent Laid-Open No. 7-7778 (FIG. 1) Japanese Patent Laid-Open No. 6-125591 (FIG. 1) JP 7-174190 A (FIG. 1)

  However, the conventional speaker stand has a problem that it is not sufficient in improving the reproduction sound from the speaker system. The vibration generated in the speaker cabinet and speaker stand has a relationship that affects each other depending on the strength and material of the respective housings, and it can be suppressed and propagated only by supporting it firmly or softly. Cannot be realized, and the reaction force generated in the speaker system cannot be sufficiently absorbed.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention relates to a speaker stand on which a speaker system including a cabinet is installed, and a speaker using a reaction force generated in the speaker system. The object is to provide a speaker stand that improves the playback sound from the system.

  The speaker stand of the present invention includes a mounting portion on which a speaker is placed, a pedestal portion, and a leg portion that connects the mounting portion and the pedestal portion, and the leg portion has a plate-like member having elasticity in the thickness direction. It is constituted by a bent elastic support leg, and the mounting portion swings in one axial direction as the elastic support leg is elastically deformed.

  Preferably, in the speaker stand of the present invention, when a speaker having a weight within a predetermined range is placed on the placement portion, the first swing distance in one axial direction in which the placement portion swings is one. It is longer than the second swing distance in another axial direction orthogonal to the axial direction.

  Preferably, the speaker stand of the present invention has a first oscillation resonance frequency in one axial direction in which the placement unit swings when a speaker having a weight within a predetermined range is placed on the placement unit. 1.0 Hz or more and 10.0 Hz or less, and the second oscillation resonance frequency in the other axis direction orthogonal to the one axis direction is higher than the first oscillation resonance frequency.

  More preferably, in the speaker stand of the present invention, the elastic support leg of the leg portion, the placement portion, and the pedestal portion are integrally configured by bending an elastic plate-like member in the thickness direction.

  More preferably, in the speaker stand of the present invention, the leg portion further includes a support leg composed of a columnar member, and one end of the support leg is fixed to the mounting portion of the elastic support leg, and the other end of the support leg is fixed. The end is fixed to the base portion of the elastic support leg.

  More preferably, the elastic supporting leg of the leg portion includes a through hole in the thickness direction of the plate-like member, and the support leg penetrates the through hole.

  More preferably, in the through hole of the elastic support leg of the leg portion, the elastic support leg and the support leg tightly attach the buffer member.

  More preferably, the leg portion is configured to be able to be fixed by replacing the support leg with another support leg having different elasticity in one axial direction in which the mounting portion swings.

  More preferably, the speaker stand according to the present invention has a first fixing member for fixing the mounting portion of the elastic support leg and the support leg, and a second fixing member for fixing the base portion of the elastic support leg and the support leg. The first fixing member and the second fixing member have a long hole defined in one axial direction in which the mounting portion swings, and are configured to be able to fix the other second support leg. ing.

  More preferably, it further includes a second support leg connected to the first fixing member and the second fixing member, and the second support leg is connected to the first fixing member and the second fixing member through the long hole.

  More preferably, the second support leg includes a first fixing member, a second fixing member, a fixing member fixed to the supporting leg, a movable member connected to the first fixing member and the second fixing member through a long hole, And the elasticity in one axial direction in which the mounting portion of the second support leg swings changes depending on the position at which the movable member is connected to the elongated holes of the first fixing member and the second fixing member.

  The operation of the present invention will be described below.

  The speaker stand of the present invention includes a placement portion on which a speaker is placed, a pedestal portion corresponding to a floor surface to be installed, and a leg portion that connects the placement portion and the pedestal portion, and the leg portion has elasticity. It is comprised by the elastic support leg which bent the shaped member in the thickness direction. The plate member having elasticity constituting the leg is, for example, a metal plate of a cold-rolled steel plate having a uniform thickness. By bending a plate-like member that is wide and long with respect to the plate thickness in the thickness direction, a leg portion having elasticity in one direction defined by the thickness direction, that is, the direction in which the plate-like member is bent is formed. As a result, the mounting portion on which the speaker is placed can swing in one axial direction with the elastic deformation of the elastic support leg.

  That is, in the elastic support leg of the speaker stand, the thickness direction of the long plate-shaped member before bending is a three-dimensional Y-axis direction (the width direction of the plate-shaped member is the X-axis direction and the length direction is the Z-axis direction). As a result of bending the plate-like member, it is easy to swing in the Y-axis direction, which is the bent direction, and is difficult to swing in other axial directions (particularly the X-axis direction) orthogonal to the Y-axis direction. Become. Specifically, the elastic support leg in which the mounting portion on which the speaker is placed and the pedestal portion are integrally formed is, for example, a “Z” shape or “ And the Greek alphabet capital letter “sigma” shape, the mounting part for placing the speaker and the installed speaker system can swing in the Y-axis direction due to the elasticity of the plate-like member Become. This is because when the pedestal part comes into contact with the floor surface, a static frictional force works due to the weight of the speaker system and the speaker stand, and the pedestal part is almost fixed and does not move. Here, since the distance range in which the mounting portion swings is very short, even if the operation of the elastic support leg is close to the operation in which the mounting portion rotates about the pedestal as a fulcrum, It is approximated as an oscillation in the axial direction.

  In the speaker stand of the present invention, when the speaker system is placed so that the vibration direction of the speaker diaphragm included in the speaker system is in the Y-axis direction, the placement portion and The placed speaker system swings in the Y-axis direction most effectively. At this time, the sound reproduced from the speaker system is excited with a sound wave having a frequency corresponding to the oscillation resonance frequency in the Y-axis direction, that is, a very low oscillation resonance frequency of 1.0 Hz to 10.0 Hz. As a result, it is possible to improve the reproduced sound from the audible speaker system by superimposing preferable shaking.

  On the other hand, the swinging of the mounting portion in the X-axis direction orthogonal to the Y-axis direction is suppressed. The swing distance in the Y-axis direction (first swing distance) of the mounting portion of the speaker stand is longer than the swing distance in the X-axis direction (second swing distance), and in the X-axis direction. The second oscillation resonance frequency is higher than the first oscillation resonance frequency in the Y-axis direction. By selecting a method of bending the elastic support leg and a material of the elastic support leg, the first and second oscillation resonance frequencies in the respective axial directions in which the placement unit oscillates, and the first and second The swing distance is controlled. It is preferable that a speaker system having a weight within a predetermined range is placed on the placement portion, and that the range of the oscillation resonance frequency is satisfied within this weight range.

  Furthermore, the leg portion of the speaker stand may further include a support leg formed of a columnar member in addition to the elastic support leg. One end of the support leg is fixed to the mounting portion of the elastic support leg, and the other end is fixed to the base portion of the elastic support leg. Therefore, even if a heavy speaker system is mounted on the mounting portion, the support legs can support the load of the speaker system together with the elastic support legs. At this time, since one end of the support leg is fixed to the mounting portion of the elastic support leg and the other end is fixed to the base portion of the elastic support leg, as the mounting portion of the elastic support leg swings, Can swing. As a result, the speaker stand of the present invention can broaden the applicable range of the weight of the corresponding speaker system, and can improve the reproduced sound from the speaker system by utilizing the reaction force generated in the speaker system.

  The support leg and the elastic support leg only need to have one end of the support leg fixed to the placement part of the elastic support leg and the other end of the support leg fixed to the base part of the elastic support leg. If the elastic support leg of the leg is, for example, the above-mentioned “Z” shape, a through hole may be provided in the middle part of the leg that is slanted of the elastic support leg so that the support leg penetrates. Good. Preferably, in the through hole of the elastic support leg, the support leg is separated from the support leg so that it does not come in contact, or the cushioning member is tightly attached, so that the swinging of the mounting portion of the elastic support leg is not suppressed. Can be provided. Therefore, even when designing with emphasis on the design aesthetics due to the bending of the elastic support legs, the speaker stand of the present invention uses the reaction force generated in the speaker system to improve the reproduction sound from the speaker system. can do.

  Further, the support leg of the speaker stand may be configured so as to be fixed by exchanging it with another support leg having different elasticity in one axial direction in which the mounting portion swings. By exchanging the support legs, the oscillation resonance frequency or the oscillation distance can be adjusted according to the weight of the speaker system placed on the placement section.

  The speaker stand further includes a first fixing member that fixes the mounting portion of the elastic support leg and the support leg, and a second fixing member that fixes the base portion of the elastic support leg and the support leg. The fixing member and the second fixing member may have a long hole defined in one axial direction in which the mounting portion swings, and may be configured to be able to fix another second support leg. Further, the second support leg may be connected to the first fixing member and the second fixing member through the long hole. By fixing the other second support legs, the oscillation resonance frequency or the oscillation distance can be adjusted in accordance with the speaker system placed on the placement section. Further, the second support leg includes a first fixing member, a second fixing member, a fixing member that is fixed to the support leg, and a movable member that is connected to the first fixing member and the second fixing member through a long hole. It may be. Since the elasticity in one axial direction in which the mounting portion of the second support leg swings changes depending on the position at which the second support leg movable member is connected to the elongated holes of the first fixing member and the second fixing member, The resonance frequency or the oscillation distance can be adjusted, and as a result, the reproduced sound from the speaker system can be improved by utilizing the reaction force generated in the speaker system.

  The speaker stand of the present invention can further improve the reproduced sound from the speaker system by utilizing the reaction force generated in the speaker system. A speaker stand that can be applied to speaker systems with a wide range of weights by selecting the shape and material of the elastic support legs, and by providing support legs, but also satisfies the design aesthetics due to the bending of the elastic support legs. Is provided.

  The speaker stand of the present invention has the purpose of improving the reproduced sound from the installed speaker system, and is provided with a mounting unit for mounting the speaker, a pedestal unit corresponding to the floor to be installed, and a mounting unit and a pedestal unit. This is realized by comprising leg portions to be connected, and the leg portions are constituted by elastic support legs obtained by bending a plate member having elasticity in the thickness direction.

  Hereinafter, although the speaker stand by preferable embodiment of this invention is demonstrated, this invention is not limited to these embodiment.

  FIG. 1 is a diagram for explaining a speaker stand 1 according to a preferred embodiment of the present invention. The speaker stand 1 is installed on a floor 3 so that a user (not shown) listens to a reproduced sound of a speaker system 2. It can be installed at a suitable position (height, orientation). In this speaker system 2, a low-pitched sound reproduction speaker 23 is attached to a front plate 21 of a substantially rectangular parallelepiped cabinet 20, and a sound is reproduced when the vibration plate 24 of the low-frequency sound reproduction speaker 23 is displaced back and forth and vibrates. . In the following description, as shown in FIG. 1, the vertical method with respect to the floor surface 3 is the Z-axis direction, and the directions in which the diaphragm 24 of the speaker system 2 vibrates are the Y-axis direction, the Z-axis direction, and the Y-axis direction. The direction in which the speaker stand 1 is viewed from the side at a right angle is the X-axis direction. The speaker system 2 is placed on the placement unit 11 of the speaker stand 1, and the bottom plate 22 of the cabinet 20 is in contact with the placement unit 11. Preferably, the bottom plate 22 of the cabinet 20 and the mounting portion 11 may be fixed by a fastening member such as a screw.

  The speaker stand 1 according to this embodiment includes an elastic support leg 10 and a fixed base plate 14. The elastic support leg 10 is integrally configured by placing a mounting part 11 on which a speaker is placed, an elastic leg part 12, and a pedestal part 13 fixed to a fixed pedestal board 14 by bending a cold-rolled steel sheet. . Here, bending refers to plastic deformation exceeding elastic deformation as a result of bending a planar plate member. If the material is not only a metal plate but also a thermoplastic resin, the plate is formed with a mold. Forming a shape as if the shaped member was bent. The elastic support leg 10 is a cold rolled steel plate having a thickness t = 0.2 mm to 5.0 mm (preferably 2.0 mm to 4.0 mm), which is wider (preferably 10 mm or more) than the plate thickness. Since the plate-shaped member cut into a sufficiently long (preferably 100 mm or more) shape is bent by pressing, bending, or the like, the elastic leg 12 having a length in the Z-axis direction is It has elasticity in the bent direction. Therefore, the elastic support leg 10 has elasticity in one direction defined by the thickness direction of the plate-like member, that is, in the Y-axis direction here. The elastic support leg 10 is hardly deformed in the X-axis direction that is the width direction thereof, but is deformed in the Y-axis direction along with the elastic deformation. Since the pedestal portion 13 of the elastic support leg 10 is fixed to the fixed pedestal plate 14, the placement portion 11 on which the speaker is placed swings in the Y-axis direction together with the speaker system 2.

  In the Y-axis direction in which the diaphragm 24 of the speaker system 1 vibrates, vibrations stronger than those in the X-axis direction and the Z-axis direction are generated due to the reaction to the driving force that displaces and vibrates the diaphragm 24. When this vibration is transmitted to the placement portion 11 of the elastic support leg 10 via the bottom plate 22 of the cabinet 20, the elasticity of the elastic leg portion 12 of the elastic support leg 10 and the placement portion 11 and the placed speaker system 2. Oscillates in the Y-axis direction at an oscillation resonance frequency determined by weight. The oscillation resonance frequency is an extremely low frequency of 1.0 Hz to 10.0 Hz, and the oscillation distance in the Y-axis direction (the position that moves most in the axial direction along with the oscillation and the position that moves most in the other) Is a short distance of 10.0 mm or less. On the other hand, the elastic support leg 10 also swings in the X-axis direction, which is the width direction, but is less likely to swing compared to the Y-axis direction, and the swing distance in the X-axis direction is shorter than that in the Y-axis direction. Become.

  FIG. 2 is a diagram for explaining the effect of the swing of the speaker stand 1 of the present invention in the Y-axis direction. The graph of FIG. 2 (a) shows the reproduction sound pressure frequency characteristic when a 21.2 W band noise signal of 50 Hz or less is applied to the speaker system 2 mounted on the mounting portion 11 of the speaker stand 1 of the present invention. In the graph of FIG. 2 (b), as a comparative example, the speaker system 2 is firmly installed with increased rigidity as a comparative example. In other words, the graph does not swing in the Y-axis direction. ) Reproduction sound pressure frequency characteristics at the speaker stand. In FIG. 2A, a peak (indicated by an arrow in the graph) corresponding to the oscillation resonance frequency in the Y-axis direction of about 3.8 Hz can be seen, while in FIG. Since it is fixed in the axial direction, a peak due to oscillation resonance is not observed in the range of 1.0 to 10.0 Hz. As described above, the speaker stand 1 of the present invention can superimpose a preferable vibration accompanying the low-frequency oscillation resonance frequency on the reproduced sound, and as a result, improves the reproduced sound from the speaker system 2 in terms of hearing. Can do. The weight range of the speaker system 2 on which the speaker stand 1 can be placed matches the range in which the oscillation resonance frequency in the Y-axis direction determined by the elasticity of the elastic support legs is 1.0 Hz or more and 10.0 Hz or less. Is preferred. The oscillation resonance frequency in the X-axis direction determined by the elasticity of the elastic support leg is about 7.0 Hz, which is a higher frequency than the oscillation resonance frequency in the Y-axis direction, and the reproduction sound pressure frequency characteristics of FIG. In the graph, no peak associated with the oscillation in the X-axis direction is observed.

  FIG. 3 is a diagram schematically illustrating another embodiment that the elastic support leg 10 of the speaker stand 1 can take, and in each case, the elastic support leg 10 is viewed from the side in the X-axis direction. When viewed from the X-axis direction, for example, a “Z” shape, a “型” shape, a Greek alphabet capital “sigma” shape, a “self” shape or a “b” shape The R dimension of the curved curved surface and the material width are set in consideration of the plate thickness and the like. It is preferable that the curved surface of the bending has a large R dimension and changes gradually in the adjustment of the oscillating resonance frequency, in the bending processing, and in addition, in the aesthetics of the design. A speaker stand 1 having an excellent design aesthetics is provided by bending the elastic support legs 10. Moreover, the length of the mounting part 11 and the base part 13 can also be set freely. In the elastic support leg 10, it is preferable that the mounting portion 11, the elastic leg portion 12, and the pedestal portion 13 are integrally formed, but a mounting plate (not shown) or a pedestal that constitutes the mounting portion 11. When the base plate 14 constituting the portion 13 is provided, the base plate 14 is not necessarily formed integrally.

  Of course, the shape of the elastic support leg 10 is not limited to the embodiment shown in FIGS. The elastic support leg 10 may be any member as long as the plate-like member is bent in the direction of the plate thickness. As a result, the placement unit 11 and the installed speaker system 2 are uniaxially driven by the elasticity of the plate-like member, that is, the speaker. It is only necessary that the vibration plate of the system can swing in the vibrating direction. By selecting the bending method of the elastic support leg 10 and the material, plate thickness, width, etc. of the elastic support leg 10, the oscillation resonance frequency and the oscillation distance in the Y-axis direction where the mounting portion 11 oscillates are appropriately set. Can be set within a wide range. Further, the speaker stand 1 is not limited to the case where the elastic support leg 10 is provided as in the present embodiment. Even in the case where a plurality of elastic support legs 10 are provided, it is only necessary that the respective swinging directions match.

  4, 5 and 6 are diagrams for explaining a speaker stand according to another preferred embodiment of the present invention. As in the case of the first embodiment, the speaker stand 1 of any of the embodiments includes an elastic support leg 10 and a fixed base plate 14, and the elastic support leg 10 has a placement portion 11 on which the speaker system is placed. And the elastic leg part 12 and the base part 13 fixed to the fixed base board 14 are integrally comprised by bending a cold-rolled steel plate. Furthermore, the leg portion of the speaker stand 1 according to the present embodiment further includes a support leg 15 made of a columnar member in addition to the “second type” elastic support leg 10. The support leg 15 is provided so as to support the load of the speaker system in the vertical direction (Z-axis direction) immediately below the mounting portion 11 of the elastic support leg 10. The support leg 15 has one end fixed to the mounting portion 11 of the elastic support leg 10, and the other end fixed to the pedestal portion 13 of the elastic support leg 10. It passes through a through hole 16 provided in the elastic leg portion 12. Note that the speaker system is not shown in FIGS. 4, 5, and 6.

  Here, the columnar member constituting the columnar leg 15 is a columnar structure having a narrower width than the plate-shaped member constituting the elastic support leg 10, and the material or shape of the columnar leg 15 is not particularly limited. One end of the support leg 15 is fixed to the mounting portion 11 of the elastic support leg 10, and the other end is fixed to the pedestal portion 13 of the elastic support leg 10 to support a load applied to the mounting portion 11 by the speaker system. Specifically, the strut legs 15 are preferably made of a material that has a very small elongation in the length direction but is elastic enough to bend as it becomes longer. In the case of FIG. It is a metal round bar material or a pipe material, and in the case of FIGS. 5 and 6, it is a cold rolled steel plate material made of the same material as the elastic support legs 10. In particular, in the case of FIG. 6, the column base 15 is configured by combining cold-rolled steel plates in a T shape.

In the speaker stand 1 of the present embodiment, the support leg 15 supports the load by the speaker system together with the elastic support leg 10, so that it is possible to cope with a heavier speaker system, and the weight range of the speaker system that can be placed is reduced. Can be enlarged. At this time, the support leg 15 has one end fixed to the mounting portion 11 of the elastic support leg 10 and the other end fixed to the pedestal portion 13 of the elastic support leg 10. Swings in the Y-axis direction as it swings in the Y-axis direction. On the other hand, the movement in the X-axis direction is difficult as in the case of the first embodiment, and the support leg 15 restrains the movement in the Z-axis direction. As a result, the mounting unit 11 and the mounted speaker system are Oscillates best in the Y-axis direction, that is, in the vibration direction of the diaphragm.

  For example, in the case of FIG. 6, the elastic support leg 10 is a plate-like member obtained by cutting a cold-rolled steel plate having a thickness t = 3.0 mm into a width of 126 mm and a length of 1250 mm, and has a substantially “b” shape in the Y-axis direction. Further, the support leg 15 is formed by cutting a cold rolled steel sheet having a thickness t = 3.0 mm into a length of 558 mm with a width of 64 mm or a length of 500 mm with a width of 48 mm. A sheet-shaped member is combined and welded in a T-shape. The support leg 15 is fixed to the mounting part 11 of the elastic support leg 10 and the pedestal part 13 by welding, and is separated from the elastic support leg 10 in the T-shaped through hole 16 as will be described later. . In the speaker stand 1 of the present embodiment, the swing distance in the Y-axis direction when a force of 1 kg is applied in the Y-axis direction is about 2.70 mm, whereas the swing in the X-axis direction with the same force is performed. The moving distance is about 1.54 mm or less. That is, the placement unit 11 and the speaker system 2 are more likely to swing in the Y-axis direction than in the X-axis direction, and the swing distance in the Y-axis direction is longer than the swing distance in the X-axis direction. When the weight of the speaker system 2 is 10.8 kg, the first oscillation resonance frequency in the Y-axis direction of the speaker stand 1 of the present embodiment is about 6.7 Hz, while on the other hand in the X-axis direction. The second oscillation resonance frequency is about 1.4 times higher.

  The support leg 15 passes through the through hole 16 of the elastic support leg 10, and is separated without contacting with the through hole 16. In order to make the mounting portion 11 easily swing in the Y-axis direction, one end of the support leg 15 is fixed to the mounting portion 11 of the elastic support leg 10, and the other end of the support leg 15 is the base of the elastic support leg 10. This is because it is preferable that the elastic support leg 10 and the support leg 15 are not in contact with each other in the through hole 16 of the elastic leg part 12. Therefore, the speaker stand 1 of the present invention can react with the reaction force generated in the speaker system even when the elastic support leg 10 and the support leg 15 are designed to be combined with an emphasis on the design aesthetics due to the bending of the elastic support leg 10. Can be used to improve the playback sound from the speaker system. In the through-hole 16, when there is a possibility that the elastic support leg 10 and the support leg 15 are not sufficiently separated from each other and may come into contact with each other by the swinging of the mounting portion 11, the restriction due to the contact is eased. In order to prevent the generation of abnormal noise due to contact, a buffer member (not shown) may be tightly attached. Specifically, the buffer member may be a porous urethane foam, a rubber such as an elastomer, or a fiber material such as a felt.

  Therefore, even if the elastic support leg 10 has, for example, the above-mentioned “B” shape, the number of the through holes 16 provided in the elastic support leg 10 may not be one but may be plural. The elastic support leg 10 may be provided with the through hole 16 so that the support leg 15 does not pass therethrough. The elastic support leg 10 may have the shape of another embodiment that can be taken by the elastic support leg 10 schematically shown in FIG. 3, and the speaker system is arranged in the vertical direction directly below the mounting portion 11 of the elastic support leg 10. It is also possible to provide a plurality of elastic support legs that have the same axial direction of swinging in a positional relationship that does not come into contact with the support legs 15 that support the load. Provided is a speaker stand that has excellent aesthetics and can improve the reproduced sound from the speaker system to be placed by the bent elastic support legs.

  Further, the support leg 15 of the speaker stand 1 may be configured to be fixed by replacing with another support leg (not shown) having different elasticity in the Y-axis direction in which the mounting portion 11 swings. For example, in the case of FIG. 4, the weight of the speaker system placed on the placement portion is increased and oscillated by replacing the round rod material constituting the support leg 15 with a round bar material having a larger diameter. Even if the resonance frequency is lowered, the oscillation resonance frequency can be adjusted to be higher.

  7 and 8 are views for explaining a speaker stand according to another preferred embodiment of the present invention. As in the case of the second embodiment, the speaker stand 1 of any of the embodiments includes an elastic support leg 10, a fixed base plate 14, and a support leg 15. The mounting portion 11 on which the speaker system is placed, the elastic leg portion 12, and the pedestal portion 13 fixed to the fixed pedestal plate 14 are integrally configured in a “second shape” by bending the cold-rolled steel plate. In addition to the support leg 10, the support leg 15 made of a columnar member is provided to support the load of the speaker system in the vertical direction (Z-axis direction) directly below the mounting portion 11 of the elastic support leg 10. One end is fixed to the mounting portion 11 of the elastic support leg 10, the other end is fixed to the pedestal portion 13 of the elastic support leg 10, and an intermediate portion thereof is connected to the elastic leg portion 12 of the “second type” elastic support leg 10. It passes through the provided through hole 16.

  For example, FIG. 7A is a perspective view of the speaker stand 1, and FIG. 7B is a side view of the speaker stand 1 in the case of FIG. This speaker stand 1 is provided with another second support leg 30 in addition to the speaker stand of FIG. 5 of Embodiment 1, and the support leg 15 and the other second support leg 30 are T-shaped elastic legs. 12 through-holes 16 are penetrated. Here, the second support leg 30 is a plate-like member having the same thickness as the plate-like member constituting the support leg 15, and a first fixing member that fixes the mounting portion 11 of the elastic support leg 10 and the support leg 15 to each other. 31 and a second fixing member 32 that fixes the base portion 13 of the elastic support leg 10 and the support leg 15 to each other. The first fixing member 31 and the second fixing member 32 are substantially L-shaped members and have long holes 33 and 34 defined in the Y-axis direction in which the mounting portion 11 swings. The elastic support legs 10 are welded to the first fixing member 31 and the second fixing member 32, respectively. Further, the second support leg 30, the first fixing member 31 and the second fixing member 32 are fixed by screws passing through the long holes 33 and 34.

  Since the second support leg 30 is fixed to the first fixing member 31 and the second fixing member 32 by screws, the second support leg 30 is replaced with another second support leg having a different size or material in order to adjust the oscillation resonance frequency. Is possible. For example, FIG. 7C is a perspective view when the second support leg 30 of the speaker stand 1 is changed to another second support leg 40 composed of a plate-like member having a wide width in another Y-axis direction. FIG. 7 and FIG. 7D are side views of the speaker stand 1 in the case of FIG. By changing to the other second support leg 40 which is not easily bent in the Y-axis direction, which is the direction in which the mounting portion 11 of the elastic support leg 10 swings, the swing resonance frequency can be adjusted to be higher. In this manner, in addition to the support leg 15, the second support leg 30 or another second support leg 40 is fixed to swing according to a speaker system (not shown) placed on the placement unit 11. The resonance frequency or the oscillation distance can be adjusted.

  Further, by selecting the material and thickness of the plate-like member constituting the second support leg 30, it becomes possible to adjust the oscillation resonance frequency or the oscillation distance, and to improve the reproduction sound from the speaker system. A speaker stand 1 is provided. Further, by changing the position where the second support leg 30 is attached to the first fixing member 31 and the second fixing member 32 in the range where the long holes 33 and 34 are defined, the oscillation resonance frequency or the oscillation distance is also changed. Can be adjusted.

  Further, FIGS. 8A and 8B are side views of another speaker stand 1 capable of adjusting the oscillation resonance frequency or the oscillation distance, and show two cases where the oscillation resonance frequencies are different. Yes. The speaker stand 1 is further provided with a second support leg 50 in the speaker stand 1 of FIG. 5 of the first embodiment, and the second support leg 50 is fixed to the first fixing member 31, the second fixing member 32, and the support leg. And a movable member 50b connected to the first fixing member 31 and the second fixing member 32 through the long hole 33 or 34.

  That is, the fixed member 50a and the movable member 50b are in a relationship in which the plate-like members are slid through the screws passing through the long holes 33 or 34 in an overlapping manner. Therefore, by changing the overlapping width of the fixed member 50a and the movable member 50b, the substantial elasticity (deflection strength) of the second support leg 50 in the Y-axis direction changes, so that the oscillation resonance frequency of the speaker stand 1 and The swing distance is changed. Therefore, it is possible to adjust the oscillation resonance frequency and the oscillation distance without exchanging the second support leg 50, and the reproduction sound from the speaker system can be easily improved. Moreover, the range which can respond also to the speaker system from which weight differs can be made wide.

  The speaker stand of the present invention is not limited to the above embodiment, and can be applied to a speaker system in which the speaker stand is integrally fixed to the cabinet bottom plate. In addition, the speaker stand of the present invention is not limited to the floor surface, and may be attached to a ceiling surface or a wall surface, and is also suitable for a speaker mounting tool on the ceiling surface or the wall surface.

It is a figure explaining the speaker stand by preferable embodiment of this invention. Example 1 It is a figure explaining the effect of the rocking | fluctuation of the speaker stand of this invention. Example 1 It is a figure explaining the other Example which the elastic support leg of the speaker stand of this invention can take. It is a figure explaining the speaker stand by other preferable embodiment of this invention. (Example 2) It is a figure explaining the speaker stand by other preferable embodiment of this invention. (Example 2) It is a figure explaining the speaker stand by other preferable embodiment of this invention. (Example 2) It is a figure explaining the speaker stand by other preferable embodiment of this invention. (Example 3) It is a figure explaining the speaker stand by other preferable embodiment of this invention. (Example 3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Speaker stand 2 Speaker system 3 Floor 10 Elastic support leg 11 Mounting part 12 Elastic leg part 13 Base part 14 Fixed base board 15 Supporting leg board 16 Through-hole 20 Cabinet 21 Front board 22 Bottom board 23 Low sound reproduction speaker 24 Vibration board 30, 40 2nd support leg 31 1st adhering member 32 2nd adhering member 33, 34 Long hole 50 2nd support leg 50a Fixed member 50b Movable member

Claims (9)

A speaker stand comprising: a placement portion on which a speaker is placed; a pedestal portion; and a leg portion that connects the placement portion and the pedestal portion;
The leg portion is integrally constituted by an elastic support leg obtained by bending an elastic plate-like member in the thickness direction, and includes a support leg constituted by a columnar member,
One end of the support leg is fixed to the mounting portion of the elastic support leg, and the other end of the support leg is fixed to the base portion of the elastic support leg;
The mounting portion swings in one axial direction in accordance with elastic deformation of the elastic support leg;
Speaker stand. When a speaker having a weight within a predetermined range is placed on the mounting portion, the first swing distance in one axial direction in which the mounting portion swings is orthogonal to the one axial direction. Longer than the second swing distance in the axial direction,
The speaker stand according to claim 1. When a speaker having a weight within a predetermined range is placed on the mounting portion, the first oscillation resonance frequency in one axial direction in which the mounting portion swings is 1.0 Hz to 10.0 Hz. And the second oscillation resonance frequency in the other axis direction orthogonal to the one axis direction is higher than the first oscillation resonance frequency.
The speaker stand according to claim 1. The elastic support leg of the leg portion includes a through hole in the thickness direction of the plate-like member, and the support leg penetrates the through hole.
Speaker stand according to any one of claims 1 to 3. In the through-hole of the elastic support legs of the leg portion, a speaker stand according to claim 4 and elastic support legs and said strut legs, which Semagi the cushioning member. The leg portion is configured to be able to be fixed by replacing the support leg with another support leg having different elasticity in one axial direction in which the mounting portion swings.
The speaker stand according to any one of claims 1 to 5 . A first fixing member for fixing the mounting portion of the elastic support leg and the support leg; and a second fixing member for fixing the base portion of the elastic support leg and the support leg.
The first fixing member and the second fixing member have a long hole defined in one axial direction in which the mounting portion swings, and are configured to be able to fix another second support leg.
Speaker stand according to any one of claims 1 to 6. The second support leg connected to the first fixing member and the second fixing member,
The second support leg is connected to the first fixing member and the second fixing member through the elongated hole;
The speaker stand according to claim 7 . The second supporting leg is connected to the first fixing member and the second fixing member, the fixing member fixed to the supporting leg, the movable member connected to the first fixing member and the second fixing member through the elongated hole. A member, and
Depending on the position at which the movable member is connected to the elongated holes of the first fixing member and the second fixing member, elasticity in one axial direction in which the mounting portion of the second support leg swings changes.
The speaker stand according to claim 8 .

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