JPH0654089U - Floor-type musical instrument pedestal - Google Patents

Abstract

(57) [Abstract] [Purpose] First, of a floor-standing instrument that can positively adjust the acoustic characteristics and vibration characteristics of the musical instrument by the material and secondly by the contact state with the leg or floor of the musical instrument. The purpose is to provide a pedestal. [Structure] A pedestal 1 interposed between a leg C of a floor-standing musical instrument P and a floor F, which is formed by stacking a plurality of members 2 and 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pedestal of a floor-standing musical instrument such as a piano, a harpsichord, a harpsichord, a contrabass, and a chello.

[0002]

[Prior art]

 For floor-standing instruments such as pianos, casters are attached to the legs of the instrument to allow easy movement of the instrument.On the other hand, in order to keep the instrument stable during performance, there is a gap between the caster and the floor. I try to cover the pedestal. As an example of such a pedestal, a pedestal for a piano as shown in FIG. 15 is known. The pedestal 101 has a bowl-like appearance, and an accommodating portion 102 for accommodating the casters C is formed in a bowl shape in the upper part of the pedestal 101. The pedestal 101 has a circular planar shape, and the accommodating portion 102 is formed in a bowl shape concentrically therewith. That is, the inner surface of the accommodating portion 102 has the deepest curved surface in the center, and the caster C is housed in the accommodating portion 102 and is positioned at the center thereof. On the other hand, the lower surface of the pedestal 101 is a flat surface, and is in solid contact with the floor F.

The pedestal 101 having such an external appearance prevents the piano from rolling and holds it stably, attenuates the vibration of the piano and transmits it to the floor F, and does not damage the floor F. In consideration of the above, solid oak, oak, birch, or a laminate of these is generally used. It is also known that the pedestal 101 made of wood is impregnated with a resin to improve strength and sound attenuation.

[0004]

[Problems to be solved by the device]

 In the conventional pedestal 101 of the floor-standing type musical instrument as described above, although the low-pitched sound is attenuated from the viewpoint of soundproofing the downstairs, the pedestal 101 itself is used to improve the acoustic characteristics of the musical instrument. There is generally no active ingenuity to do so. In other words, a floor-standing instrument of this type is acoustically affected by the state of the floor F on which the instrument is placed, but the acoustic variation and vibration characteristics can be positively adjusted so that the acoustic variation range can be adjusted. A certain pedestal 101 does not exist, and for the one that requires a plurality of pedestals 101 such as a grand piano, only the same pedestal 101 is prepared. Therefore, it has not been possible for the performer to cope with an attempt to produce sound more effectively by the pedestal 101 in consideration of the state of the hall in the performance hall, the state of the floor F, the vibration mode of the musical instrument, and the like.

The present invention has been made in view of the above problems. First, the acoustic characteristics and vibration characteristics of the musical instrument are positively influenced by the material and secondly by the contact state with the leg or the floor of the musical instrument. Its purpose is to provide a pedestal for a floor-standing musical instrument that can be adjusted.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the invention of claim 1 is a pedestal to be interposed between the legs of the floor-standing musical instrument and the floor, and is characterized in that a plurality of members are laminated.

In this case, it is preferable that the plurality of members include a base member and at least one laminated member, and the one laminated member is configured to be detachable from the base member.

According to a third aspect of the present invention, there is provided a pedestal to be interposed between the legs of the floor-standing musical instrument and the floor, wherein the shape of the upper leg accommodation portion on which the legs are placed is not changed. The feature is that it is shaped like a bowl.

Further, the invention of claim 4 is a pedestal interposed between the leg of the floor-standing instrument and the floor, and the lower floor contact portion that comes into contact with the floor is configured to be able to partially contact the floor. Characterized by

[0010]

[Action]

 According to the pedestal of the floor-standing type musical instrument of claim 1, by stacking a plurality of members, it is possible to change the selection of the stacked members, the stacking order, the thickness of each stacked member, and the number of members. You can freely change the attenuation characteristics of the sound transmitted from the musical instrument to the floor according to your preference. That is, the acoustic characteristics of the musical instrument can be adjusted by positively attenuating the low frequency range, the high temperature range, or the desired frequency band.

In this case, the laminated member is detachably attached to the base member so that the laminated member can be attached or detached, or can be replaced with another laminated member made of a different material or the like. Thus, the sound attenuation characteristic can be easily changed, and one pedestal can have a plurality of attenuation characteristics.

Further, according to the pedestal of the floor-standing musical instrument of claim 3, the shape of the leg accommodating portion at the upper part of the pedestal is formed into a non-bowl shape, so that the shape of the leg accommodating portion can be changed appropriately. The state of contact between the leg part of the musical instrument and the leg accommodating part of the pedestal can be point contact, line contact, or surface contact, and the sound propagation from the contact point can be changed depending on the shape of the leg accommodating part. Can be done. That is, if the contact state is point contact, the sound propagates to the pedestal by using the legs of the musical instrument as point sound sources, if it is line contact it propagates as a line sound source, and if it is surface contact, it propagates as a surface sound source. Go on. Also, when there are multiple point sound sources and line sound sources, the sound propagation state is different from the above.

Further, according to the pedestal of the floor-standing type musical instrument of claim 4, when the floor contact portion at the lower part of the pedestal is configured to be partially contactable with the floor, the pedestal is considered to be the sound source with respect to the floor. , It is possible to create a plurality of point sound source-like or line sound source-like states.

[0014]

【Example】

 Hereinafter, a case in which the pedestal of the floor-standing musical instrument according to the embodiment of the present invention is applied to a pedestal for piano will be described with reference to the accompanying drawings. FIG. 1A is a cut side view of the pedestal, and FIG. 1B is a plan view thereof. As shown in the figure, this pedestal 1 is on which the casters C constituting the legs of the Piano P ride, and the pedestal body 2 as a base member and the upper laminated member 3 laminated on the upper surface of the pedestal body 2. It consists of and. The pedestal body 2 has a bowl-like appearance, and an accommodating portion (leg accommodating portion) 4 on which the casters C are placed is formed in a bowl shape in the upper part. The pedestal 1 has a circular planar shape, and the accommodating portion 4 is concentrically formed in a bowl shape. The inner surface of the accommodating portion 4 has the deepest curved surface in the center, and the caster C is housed in the accommodating portion 4 and is positioned at the center thereof. On the other hand, the lower surface of the pedestal 1 is a flat surface, and is set so as to be solid on the floor F.

The pedestal 1 is made of solid wood such as oak, birch, oak, etc. (hardwood), or a laminate of these, as well as those impregnated with various resins, and softwood with resin. It is made of impregnated and compression-hardened wood, plywood, plastic, and rubber.

The upper laminated member 3 is formed in a curved disc shape and is laid on the accommodating portion 4 of the pedestal body 2. The upper laminated member 3 is made of wood, wood plywood, plastic, rubber, metal, other members and their composite materials similar to those of the pedestal body 2, and various kinds of materials having the same shape and various frequency characteristics are prepared. Has been done.

FIG. 2 shows the vibration characteristics of various members. As shown in FIG. 2, the damping performance is good in the order of metal, rubber, and wood in the low frequency range of low frequency, and in the middle frequency range. The damping performance is good in the order of rubber, metal, and wood, and in the high range, rubber, wood, and metal in that order. Therefore, by appropriately combining these materials, the pedestal 1 that can positively attenuate a specific frequency range can be configured. That is, the upper laminated member 3 is configured to be attachable to and detachable from the pedestal body 2, and various types are prepared so that the acoustic characteristics desired by the performer can be obtained. The player can obtain desired acoustic characteristics of the piano P as a whole by exchanging the upper laminated member 3 as appropriate.

As an example of obtaining desired acoustic characteristics of the piano P as a whole, a case as shown in FIG. 3 can be considered. In this performance hall, among the casters C of the piano P arranged at the three locations of X, Y, and Z, the caster C at the X position rides almost above the beam H of the floor F, and the Y position. The caster C located at is slightly separated from the beam H, and the caster C located at the position Z is further separated from the beam H. In this case, the rigidity of the floor F is highest at the X position, and is in the order of the Y position and the Z position. Due to the structure of the floor F, considering the attenuation of the low frequency range that is hard to be attenuated and has an acoustic effect, the X position has a large low frequency attenuation (the low frequency sound is easily shielded), the Y position, It becomes smaller in the order of the Z position (it is difficult to block low frequencies). Therefore, the pedestals 1, 1, 1 arranged at the positions of X, Y, and Z are constructed by those having a low bass attenuation property in the order of X, Y, and Z to balance the bass attenuation characteristics. . Furthermore, considering the vibration mode of the piano, adjust the volume of the low frequency range propagated from the Piano P to the floor F to obtain good acoustic characteristics, or effectively prevent low noise downstairs. To do.

As described above, according to the first embodiment, the pedestal body 2 and the upper laminated member 3 are laminated to form the pedestal 1. By properly selecting and adjusting the thickness of the upper laminated member 3 and the like, it is possible to configure the pedestal 1 that can positively attenuate an arbitrary frequency band. As a result, the player of Piano P can select the pedestal as appropriate in consideration of the structure of the floor F of the performance hall and the arrangement of the piano P to positively produce the acoustic effect. Moreover, since the upper laminated member 3 can be attached to and detached from the pedestal main body 2, if a large number of upper laminated members 3 made of different materials are prepared, finer acoustic adjustment becomes possible.

FIG. 4 shows a cross section of a second embodiment of the present invention. As shown in the figure, on this pedestal 1, dowels 5 and 5 are formed or driven in the accommodating portion 4 of the pedestal body 2, and the upper laminated member is fitted so as to match the dowels 5 and 5. Fitting holes 6a, 6a are formed in the lower part of 6. The upper laminated member 6 is made of the same material as that of the first embodiment, and is laminated on the accommodating portion 4 of the pedestal body 2. In this state, the upper laminated member 6 is detachably attached to the pedestal body 2 and can be attached to the pedestal body 2 by the dowels 5 without being displaced.

FIG. 5 shows a cross section of a third embodiment of the present invention. As shown in the figure, this pedestal 1 is configured by laminating a lower laminated member 7 on the lower side of the pedestal body 2. The lower laminated member 7 is made of the same material as that of the first embodiment, and is adhesively fixed to the lower surface of the pedestal body 2.

FIG. 6 shows a cross section of a fourth embodiment of the present invention. As shown in the figure, in this pedestal 1, the first laminated member 8 and the second laminated member 9 are laminated inside the accommodation portion 4 on the upper side of the pedestal body 2, and the third laminated member 10 is laminated below. Is configured. At least the first laminated member 8 and the second laminated member 9 are made of different materials, and these are adhered to each other and to the pedestal body 2. The third laminated member 10 is adhesively fixed to the lower surface of the base body 2. The first, second and third laminated members 8, 9 and 10 are made of the material shown in the first embodiment, and the stacking order and thickness are taken into consideration so as to have a desired damping characteristic. There is. The first, second and third laminated members 8, 9 and 10 may be configured to be attachable to and detachable from the base body 2.

Next, a fifth embodiment of the present invention will be described with reference to FIG. 7A and 7B are a cross-sectional view and a plan view of the pedestal 1, respectively. As shown in the figure, in this pedestal 1, the accommodating portion 4a of the pedestal main body 2 is formed in a U-shaped cross section and in a plane circular shape. That is, the bottom surface of the accommodating portion 4a is formed flat, and the casters C are placed on the pedestal 1 by line contact.

According to this embodiment, since the caster C and the pedestal 1 are in line contact with each other, the sound (vibration) propagation between the caster C and the pedestal 1 catches the caster C side as a line sound source. It becomes a sound propagation pattern. That is, the sound spreads in an elliptical shape from the contact portion between the caster C and the pedestal 1, propagates in the pedestal 1, and further propagates from the pedestal 1 to the floor F. Therefore, the influence of the contact state between the pedestal 1 and the casters C, the shape of the pedestal main body 2, and the shape of the accommodating portion 4a appears as the damping characteristic of the pedestal 1.

FIGS. 8A and 8B are a sectional view and a plan view of the pedestal 1 according to the sixth embodiment, respectively. As shown in the figure, in this embodiment, the accommodating portion 4b of the pedestal body 2 is formed in a hollow semi-cylindrical shape so that the lower half peripheral portion of the caster C is in full contact with the accommodating portion 4b. . Therefore, the caster C acts as a surface sound source on the pedestal 1, and the sound propagating through the pedestal 1 becomes a propagation pattern different from that in the above-described embodiment.

FIGS. 9A and 9B show a cross-sectional view and a plan view of the pedestal 1 according to the seventh embodiment, respectively. As shown in the figure, in this embodiment, the accommodating portion 4c of the pedestal body 2 is formed in a rectangular flat shape so as to form a "V" groove, and the casters C are provided at two positions in the accommodating portion 4c. It comes in line contact with. In this case, the sound propagating from each line contact portion interferes with each other in the pedestal 1 and is amplified or attenuated to form a special propagation pattern.

FIGS. 10A and 10B are a sectional view and a plan view, respectively, of the pedestal 1 according to the eighth embodiment. As shown in the figure, in this embodiment, the storage portion 4d of the pedestal body 2 is formed in an oval shape so as to form a half-moon groove, and the caster C extends over the upper end of the storage portion 4d. Placed. In this embodiment, the casters C are in line contact with the pedestal 1 at two points, and the accommodating portion 4d is long in the contact line direction. Therefore, in the pedestal 1, the sound is easily attenuated in the contact line direction and is less likely to be attenuated in the direction orthogonal to the contact line direction, resulting in a special propagation pattern.

FIG. 11 is a plan view of the pedestal 1 according to the ninth embodiment. As shown in the figure, in this embodiment, the accommodating portion 4e of the pedestal main body 2 has a triangular planar shape, and the casters C are in line contact with the pedestal 1 at three points.

Next, a tenth embodiment of the present invention will be described with reference to FIG. 12 (a) and 12 (b) respectively show a cross-sectional view and a plan view of the pedestal 1 according to the embodiment of the present invention. As shown in the figure, in this embodiment, the lower surface of the pedestal body 2 is concentrically recessed and formed, leaving a peripheral edge portion (floor contact portion) 11, and the pedestal 1 has a floor F at this peripheral edge portion 11. It comes in contact with. According to this, the pedestal 1 and the floor F are brought into line contact with each other, and a part of the lower surface of the pedestal 1 does not float up from the floor F, so that resonance between the both is effectively prevented. . That is, the sound propagating from the pedestal 1 to the floor F can be adjusted by the contact state between the pedestal 1 and the floor F. Moreover, the pedestal 1 itself can stably support the piano P.

FIGS. 13A and 13B are a sectional view and a plan view of the pedestal according to the eleventh embodiment, respectively. As shown in the figure, in this embodiment, the lower surface of the pedestal main body 2 is formed concentrically with the peripheral portion (floor contact portion) 11 and the central portion (floor contact portion) 12 left behind. The pedestal 1 contacts the floor F at the peripheral edge portion 11 and the central portion 12. According to this, the pedestal 1 acts on the floor F in a line contact manner at its peripheral portion 11 and in a point contact manner at the central portion 12, so that the sound propagates linearly and pointwise. To be done.

FIG. 14 shows a plan view of the pedestal 1 according to the twelfth embodiment. As shown in the figure, in this embodiment, three peripheral edge convex portions (floor contact portions) 13, 13, 13 are formed on the lower surface of the pedestal body 2, and the pedestal 1 is attached to the floor F by the peripheral edge convex portions 13. It comes into contact. According to this, the pedestal 1 comes into point contact with the floor F at three points by the peripheral edge projections 13, 13 and 13, and the pedestal 1 itself is stably placed on the floor F at three points.

In these examples, changing the material of the pedestal, changing the contact state between the pedestal and caster, changing the shape of the pedestal, and changing the contact state between the pedestal and the floor However, it is needless to say that the pedestal may be configured by combining them in combination. It goes without saying that it can also be applied to the pedestal of floor-standing instruments such as harpsichord, harpsichord, double bass, and cello other than piano. However, in such a case, the legs may be composed of spherical casters or other things, but while considering the characteristics of the musical instrument, change the material and shape appropriately according to the above technical concept. To do.

[0033]

[Effect of device]

 As described above, according to the pedestal of the floor-standing instrument of the present invention, the material of the pedestal, the contact state between the pedestal and the legs of the musical instrument, the shape of the pedestal, the contact state between the pedestal and the floor, etc. are positively adjusted. As the sound characteristics and vibration characteristics of the musical instrument are actively adjusted, the variation of the sound is expanded, and the sound condition according to the performer's taste is considered in consideration of the condition of the hall and the condition of the floor. It has the effect of enabling production.

[Brief description of drawings]

FIG. 1 is an external view of a pedestal of a floor-standing musical instrument according to a first embodiment of the present invention.

FIG. 2 is a plan view of a state in which a grand piano is set using the pedestal of the embodiment.

FIG. 3 is a diagram showing vibration characteristics of constituent materials of a pedestal.

FIG. 4 is a cut side view of a pedestal according to a second embodiment.

FIG. 5 is a cut side view of a pedestal according to a third embodiment.

FIG. 6 is a cut side view of a pedestal according to a fourth embodiment.

FIG. 7 is an external view of a pedestal according to a fifth embodiment.

FIG. 8 is an external view of a pedestal according to a sixth embodiment.

FIG. 9 is an external view of a pedestal according to a seventh embodiment.

FIG. 10 is an external view of a pedestal according to an eighth embodiment.

FIG. 11 is a plan view of a pedestal according to a ninth embodiment.

FIG. 12 is an external view of a pedestal according to the tenth embodiment.

FIG. 13 is an external view of a pedestal according to the eleventh embodiment.

FIG. 14 is a plan view of a pedestal according to a twelfth embodiment.

FIG. 15 is an external view of a base of a conventional floor-standing musical instrument.

[Explanation of symbols]

 1 pedestal 2 pedestal body 3 upper laminated member 4 accommodating portion C caster F floor P piano

Claims (4)

[Scope of utility model registration request] 1. A pedestal for a floor-standing musical instrument, wherein the pedestal is interposed between the legs of the floor-standing musical instrument and the floor, and is constructed by laminating a plurality of members. 2. The plurality of members have a base member and at least one laminated member, and the one laminated member is configured to be attachable to and detachable from the base member. The pedestal of the floor-standing instrument described in. 3. A pedestal to be interposed between the leg portion and the floor of a floor-standing instrument, wherein the upper leg portion accommodating portion on which the leg portion is placed has a non-bowl shape. A pedestal of a characteristic floor-standing musical instrument. 4. A pedestal interposed between a leg portion of a floor-standing musical instrument and the floor, the lower floor contact portion contacting the floor,
A pedestal for a floor-standing musical instrument, which is configured so as to be able to partially contact the floor.