JP2008530593A - Drum structure with rotating drum head tuning method and spherical acoustic chamber - Google Patents

Abstract

To provide both an auditory improvement and a visual improvement over prior art instruments, a threaded tuning rim to replace the knob used in conventional drums, a spherical acoustic chamber, Rotation tuning system using Rotational tuning systems use a drum head that is secured to the drum when sandwiched between a threaded drum shell and a threaded rim. The drum is tuned by rotating the rim to increase the pressure acting on the drum head. A further feature of the present invention is a spherical acoustic chamber that replaces the drum shell. A spherical acoustic chamber provides enhanced audio quality and also provides a housing for electronic equipment that is held in the spherical chamber. The spherical acoustic chamber also provides a number of visual improvements that allow for improved drum sound quality and lighting programmed for entertainment purposes.
[Selection] Figure 1

Description

  The present invention relates to musical instruments. Specifically, the present invention relates to a new rotational tuning mechanism for a drum structure using a spherical acoustic chamber that provides both auditory and visual improvements over the prior art.

  This application is entitled "Drum structure with knobless drum head tuning and spherical acoustic chamber" in the name of the inventor Robert Lerner, here named as the sole inventor, on February 4, 2005. US Provisional Patent Application No. 60 / 593,691, filed by name, and inventor Robert Lerner, nominated here as the sole inventor, December 2, 2005 Related to US design patent application No. 29 / 244,051, filed under the name “Shell”, claiming their benefits, and the contents of each of the above applications are specifically incorporated herein by reference in their entirety. .

  In the music industry, drums are used in almost all kinds of music. Some drums are suitable for any kind of music, while others are more suitable for certain kinds of music. As a result, many types of drums have been developed for a wide variety of musical fields. For example, drum sets or drum kits used for rock and roll bands are different from drums used by orchestras and other musical combinations. For these various purposes, a wide variety of drums have been developed, such as bongo, square drum, percussion drum, bass drum, kettle drum, tam tom drum, and timpani drum. Is used to create music. In addition to acoustic drums, many drums have been simulated or augmented by electronics.

  The various drums that have been developed have their own sound quality. As a result, bands and orchestras typically require many types of drums to create the various sounds required for a particular musical work. Depending on the artist's intention, changes in the acoustic quality of a particular instrument improve the properties of a given musical work. It would be desirable to have a way to change the sound quality of an existing drum to produce a specific acoustic effect.

  Another problem with the use of drums is that considerable skill and effort is required to tune correctly. The drum is typically tuned by adjusting a series of knobs disposed around the periphery of the drum head. It would be desirable to have a method for tuning the drum that can be tuned in a shorter time, does not require advanced skills, and can be tuned conveniently.

  The present invention provides a spherical drum having a drum tuning system that uses a threaded tuning rim instead of the knobs used in conventional drums. The spherical acoustic chamber offers both audio and visual improvements over prior art instruments. The tuning system uses a drum head that is secured to a threaded drum shell with a rotating rim. A further feature of the present invention is a spherical acoustic chamber. The spherical acoustic chamber provides excellent auditory quality and is also an electronic device housing that is held in the spherical chamber. The spherical chamber also provides many visual improvements, and the internal lighting can be programmed for entertainment purposes.

  Before describing the drawings in detail, an overview of the system is presented. The present invention provides an improved method of tuning a drum head, along with a spherical acoustic chamber that provides additional options that improve audio quality and are visually pleasing.

  Conventional drums are tuned using a series of knobs attached to a drum shell. In order to properly tune the drum, each of the different knobs must be carefully adjusted to give the drum head the correct tension to provide the desired audio quality. In a preferred embodiment, a prior art drum head (typically composed of a plastic sheet struck with a drum stick and a metal tube frame supporting it) is placed between the rim and the bearing edge of the drum. It is sandwiched between. In a preferred embodiment, the threaded rim and drum head are a single piece. However, they can also be manufactured as separate parts. The rim and drum have a threaded surface so that they can be fixed together. By sandwiching the drum head between the threaded rim and the bearing edge of the threaded drum, the drum is acoustically tuned with equal tension on all sides. Another preferred embodiment provides a new drumhead mounting assembly that allows the drumhead to be screwed directly into a screw on the drum. New drum heads have threads that secure the drum head to the threaded drum and create the correct tension and tone by tightening the drum head evenly and gradually on all sides. This drum head is tuned by turning the threaded part of the drum head to gradually increase the tension.

  An important feature of the present invention is the addition of a spherical acoustic chamber. The drum shell is disposed between the drum head and the spherical acoustic chamber. Alternatively, a one-part design may be used in which the spherical acoustic chamber, shell and bearing edge are molded as a single plastic part. The spherical acoustic chamber provides an improved audio quality that gives it a unique sound no matter what performance parts the musician plays. One reason is that it has been found that spherical acoustic chambers have certain unique acoustic characteristics. Specifically, the spherical acoustic chamber has few interference waves created in the room. As a result, a sound different from that of a conventional drum is produced. In a preferred embodiment, the drum head is placed on the shell and secured with a rim. The shell and rim have a threaded surface that, when rotated, tightens the drum head and tunes it by changing the pressure acting on it. It is this tightening action that actually tunes the drum.

  In addition to the acoustic quality created by the present invention, another important feature of the present invention is that it provides a unique visual appearance. Specifically, drums are often used in sets composed of several independent drums of different sizes. When multiple drums are used, combining spherical acoustic chambers of different sizes can result in a unique visual effect resembling a “molecular” structure. The spherical shape offers another advantage. That is, since the spherical acoustic chamber is dimensionally enhanced, additional features can be added. For example, an internal light can be provided that glows in response to sound that is programmed or produced by the drum. Also, the electronic device may be hidden in the spherical acoustic chamber so that the drum can produce electronic music instead of acoustic music. In addition to lighting, sensors in the drum can control the lighting with music so that when the drum is struck, it can detect when the drum is struck to illuminate the drum. As can be appreciated, in addition to the unique visual appearance of the drums, they also have various built-in functional devices that improve their performance from both an auditory and visual perspective.

  Note that the drum is often made of a material such as wood or metal. Also, different types of drums are often made of different materials. For example, wooden drum rings are commonly used for bass drums, while small drums (ie, tom toms, etc.) typically use metal rims. A drum with a spherical acoustic chamber is not limited in terms of the materials used to make the drum, as compared to any other type of drum. As a result, these drums give artists great freedom about the materials used. The only limitation is the effect of the selected material on the sound produced by the drum.

The rotation tuning and the spherical acoustic chamber have been schematically described above, and the drawings will now be described in more detail.
FIG. 1A is a side view of a preferred embodiment of a drum 1 using a spherical acoustic chamber 2. In this figure, the spherical acoustic chamber 2 has an extension 3 fixed to the drum shell 4. Here, a knob 7 according to the prior art is used to fix the wooden annulus 5. The drum head 6 is fixed between the wooden annulus 5 and the drum shell 4. As can be seen in this figure, the spherical acoustic chamber 2 gives the drum 1 a unique new shape and overall appearance. As will be appreciated by those skilled in the art, a complete drum set with multiple drums 1 will provide a shocking visual appearance to the audience.

  As will be appreciated by those skilled in the art, the size of the spherical drum provided by the present invention varies with the specific type of drum 1. It is assumed that the spherical acoustic chamber 2 can be used with any size or type of drum 1. For example, the spherical acoustic chamber can be used with a bongo, square drum, percussion drum, base drum, kettle drum, or tom drum. As a result, the size of the spherical acoustic chamber 2 varies over a wide range. The diameter dimension of the spherical acoustic chamber 2 typically ranges from 2 feet 6 inches to 1 foot 1 inch. Similarly, in a preferred embodiment, the drum shell 4 is typically about 5 inches in size. The above dimensions suggest how the present invention is implemented. However, it should be understood that the dimensions are not critical and can vary greatly depending on the type of drum and the size of the drum head 6.

  Besides the size, the designer has a considerable number of options in terms of the materials used to make the drum 1. The drum may be made of any suitable transparent, colored material such as wood, metal, glass, plastic (including plastic that glows in the dark), resin, polyethylene, polypropylene, and the like. In fact, any material with suitable acoustic and visual properties can be used. In addition, the spherical acoustic chamber 2 can be decorated with colors, images, lettering, etc. to present a wide variety of visual themes to the audience.

  In addition to the size of the spherical acoustic chamber 2 and the variety of types of materials used to make it, the spherical acoustic chamber 2 can also vary in shape. For the sake of clarity, the present invention is illustrated using a spherical acoustic chamber 2. Although a spherical acoustic chamber 2 is shown in the drawing, it will be appreciated by those skilled in the art that alternative shapes may be used to implement the present invention. The shape may be a perfect sphere, oblate sphere, elliptical sphere, or the like. The acoustic chamber may be a free shape, an irregular shape, or various character shapes. The only limitation is that the spherical acoustic chamber 2 can be attached to a particular drum shell 4 of interest, unless it is made of a single piece (ie, plastic chamber, shell, and bearing edge). is there. For ease of explanation, unless otherwise specified, the term “spherical acoustic chamber” is used herein to refer to any of the above shapes. However, it should be pointed out that an acoustic chamber, which is assumed to be spherical in the general definition of the world, has some kind of unique acoustic characteristics because interference waves are hardly generated.

  FIG. 1B is an end view of a preferred embodiment of the present invention, showing the drum head 6 attached to a wooden annulus 5 and the annulus attached to the spherical acoustic chamber 2. The figure also shows an optional knob 7. In the prior art, the knob 7 is used for tuning the drum 1. In the embodiment shown here, the knob 7 has a decorative value, it is optional to fix the drum head 6 and the wooden ring 5 together, and the drum 1 is used for function or tuning purposes. Not need. As those skilled in the art will appreciate, there are a number of suitable ways to secure the components of the drum 1 together. The only requirement is that it is suitable for the intended purpose. When using the knob 7, the knob can be attached in various ways. For example, the knob can be formed as a part of the wall of the acoustic chamber 2 as an integral attachment to the chamber, or as a conventional knob 7 fixed to the drum shell 4 or the like.

  For the sake of clarity, this figure shows the spherical acoustic chamber 2 as having a larger diameter than the drum shell 4. However, this is not actually a requirement for the practice of the present invention. The diameter of the spherical acoustic chamber 2 may be the same as the diameter of the drum shell 4 or may even be small. As will be appreciated by those skilled in the art, the size of the spherical acoustic chamber 2 may be varied to suit the acoustic and visual design objectives of a particular drum set.

  FIG. 2A shows a preferred embodiment of the drum used in accordance with the present invention. The drum head 6 is attached to the rim 9. In this figure, the position of the female screw 8 provided inside the rim 9 is also shown. When the drum head 6 and the rim 9 are attached to the drum shell 4, the three members are fixed by screwing the female screw 8 to the corresponding male screw on the drum shell 4 side. In the preferred embodiment, the male thread is formed in a threaded collar 12 that is attached to the body of the drum shell 4. In this figure, the bearing edge 11 is also shown. When the drum head is put in place and the rim 9 is screwed into the corresponding male screw 10, the bearing edge 11 limits the distance over which the tuning rim 9 can be screwed. The rim 9 is preferably made of metal. However, other suitable materials may be used. Depending on how much the rim 9 is screwed into the drum shell 4, the pressure applied to the drum head 6 changes, and the drum head 6 is tuned equally on all sides.

  In this configuration, several variations are possible. For example, the threaded collar 12 may be removable so that it can be easily replaced as needed. Similarly, the collar may be permanently attached to the drum shell 4. The bearing edge 11 may be manufactured so as to be replaceable. Screw mounting is just one way to secure the collar 12 to the drum shell 4. For example, you may attach with the groove | channel provided in outer periphery, such as a drum shell / sphere. Similarly, spacers can be used at the contacts between the drum shell / sphere and the collar 12 to minimize contact and minimize acoustic distortion.

  FIG. 2B shows another preferred embodiment of the drum 1 used according to the invention. In this embodiment, the drum head 6 and the rim 9 are manufactured as a single component. This is easily accomplished by extending the tube ring 14 (shown in FIG. 5) so that the threaded inner surface has a collar forming the rim 9. This figure shows the position of the female screw 8 provided inside the drum head 6. When the drum head 6 is attached to the drum shell 4, the drum head 6 is fixed by screwing the female screw 8 with the corresponding male screw 10 on the drum shell 4 side. In the preferred embodiment, the male thread is formed in a threaded collar 12 that is attached to the body of the drum shell 4. This figure also shows the bearing edge 11. When the tube frame 9 is screwed into the corresponding male screw 10, the bearing edge 11 limits the distance over which the metal rim 9 can be screwed. The rim 9 is preferably made of metal. However, other suitable materials may be used. Of course, as will be understood by those skilled in the art, it does not matter whether the metal screw 10 or the female screw 8 is the threaded collar side or the rim 9 side. The important thing is that the two are joined together, the drum head 6 is fixed to the drum 1, and the drum head 6 is tightened to tune the drum 1.

  Typically, the threaded collar 12 is relatively small, on the order of 1.5 inches. However, this depends on the material used and the size of the drum 1. Similarly, the preferred embodiment assumes that the threaded collar is made of metal. However, any other material may be used as long as it is suitable for the intended purpose.

  FIG. 3 is a cross-sectional view of one preferred embodiment of the present invention showing how the drum head 6 is assembled to the drum shell 4. In this figure, the drum head 6 is attached to the drum shell 4. As shown in the figure, the male screw 10 is fixed to the drum shell 4 with a flexible gasket 13 disposed between the metal male screw 10 and the drum shell 4 which is usually made of wood. At the time of assembly, the metal tube frame 14 is attached to the drum head 6 as shown in FIG. Once the drum head 6 is attached to the drum shell 4, the tuning ring 15 is screwed into the male screw 10 until the drum head 6 is securely attached to the drum shell 4.

  As with the other components of the system, the preferred embodiment assumes a tube frame 14 made of metal. However, as will be appreciated by those skilled in the art, any suitable material may be used as long as it is suitable for that purpose. Tube frames are known in the art.

  In this embodiment, it is not necessary to tune the drum 1 by adjusting the knob, as was done in the prior art. In this embodiment, the drum head 6 is tuned by adjusting the tightening of the tuning ring 15 and the male screw 10. Thereby, the method of adjusting the tension of the drum head 6 becomes easier and more convenient. In summary, this rotating drum tuning embodiment is made of metal (or other suitable material). The tuning ring 15 is designed to be screwed onto the outside of the drum shell 4. This eliminates the need to use a knob and provides a simpler and more accurate tuning method for the drum 1. This system is used for both acoustic and electronic drums.

  FIG. 4 shows a cut-away view of a preferred embodiment of the present invention in which the bearing edge 11 is integrally formed with a threaded collar 12. The bearing edge 11 is pressed against the drum head 6 to tune the drum 1. When the rim 9 is tightened, the bearing edge 11 increases the pressure acting on the drum head 6 and changes the acoustic quality of the drum 1. Also shown in this figure is a gasket 13 that reduces noise between the threaded collar 12 and the drum shell 4. Any suitable means such as screws or adhesives may be used to attach the gasket 13 to the threaded collar 12 and drum shell 4.

  FIG. 5 shows the spherical acoustic chamber 2 of a preferred embodiment being attached to the drum head 6 and the tuning ring 15. In this embodiment, the drum head 6 is fixed to the tube frame 14. The tube frame 14 is mounted over the bearing edge 11 and then fixed in place by screwing the tuning ring 15 into the threaded collar 12. A dotted line 8 indicates a threaded portion inside the tuning ring 15 that meshes with the threaded collar 12.

  FIG. 6 is another preferred embodiment of the present invention. In this embodiment, the spherical acoustic chamber 2 has an extension 3 sized to be attached to a threaded collar 12. Further, the edge portion of the extending portion 3 forms a support edge portion 11. The drum head 6 and tuning ring 15 are mounted in the same manner as before.

  FIG. 7 shows a side sectional view of the spherical acoustic chamber 2 of another preferred embodiment. In this embodiment, an optional acoustic element 16 is installed inside the spherical acoustic chamber 2 of the drum 1 in order to create a specific change in the sound produced by the drum 1. Alternatively, the acoustic element 16 may be an integral part of the spherical acoustic chamber 2.

  For ease of illustration, the acoustic element 16 is shown as having a simple conical shape. However, as will be appreciated by those skilled in the art, the acoustic element 16 may have any shape (eg, peaks, valleys, etc.) to produce the desired acoustic effect. Similarly, the material used to make the acoustic element 16 may vary based on the desired acoustic effect. For example, a soft foam material is used to soften or weaken the sound, while a harder material is used to enhance the effect of certain sounds. As a result, the amount of acoustic element 16 used by a particular drum 1 as well as the material used to make it will depend on the intended use of the drum 1. For example, a drum used in a symphony orchestra requires a sound that is substantially different from a drum used in a snake metal rock band.

  In addition to changing the sound by selecting a particular material to make the acoustic element 16, the shape and size of the acoustic element 16 also affect the sound. Similarly, the outer surface of the drum 1 may be modified to include protrusions, fins, etc. to enhance or radiate sound.

  The acoustic element 16 may be permanently attached to the inside of the spherical acoustic chamber 2 or may be an integral part of the spherical acoustic chamber 2. As will be appreciated by those skilled in the art, both may be removably attached so that a musician can remove some or all of the acoustic elements 16 and re-install some or all of the acoustic elements for a particular performance. You may be able to do it. This can be achieved in various ways. For example, the acoustic element 16 can be attached by adhesive, double-sided tape, snap attachment, or other suitable means. Allowing the acoustic element 16 to be removably attached greatly increases the flexibility for the musician of what can be achieved with that particular instrument.

  Another way to change the sonic performance of the drum 1 is to change the material from which the spherical acoustic chamber 2 is made. For example, the spherical acoustic chamber 2 may be made of a material such as plastic or fiberglass from which a certain kind of sound can be obtained. Similarly, the spherical acoustic chamber 2 may be made of other materials such as metals, wood, stone composites, or combinations thereof that produce different types of sounds. When the spherical acoustic chamber 2 is manufactured, even when a specific material such as wood is used, the sound quality varies based on various factors such as thickness, density of wood, and wood type.

  FIG. 8 shows a spherical acoustic chamber 2 of still another preferred embodiment. In this embodiment, a hole 17 is formed in the wall of the spherical acoustic chamber for the purpose of changing the quality of the sound produced by the drum 1. For ease of illustration, the holes 17 are shown as having a simple elliptical shape. However, as can be understood by those skilled in the art, the shape of the hole 17 can be changed according to the effect on the sound quality produced by the drum 1. Similarly, the shape of the holes 17 may vary based on the intended appearance.

  For ease of explanation, each component of the drum 1 is illustrated and described as an individual element. However, as will be appreciated by those skilled in the art, many elements may be molded as a single unit to simplify the manufacturing process. Similarly, the drum may or may not use a rotational tuning system. For example, when using a one-piece plastic molded drum, the knob may be attached to the spherical acoustic chamber. Similarly, the knob or tuning rim may be modified to accommodate a drum 1 having a second or “resonant” drum head. Conversely, if the system is used with a one-piece molded drum (ie, a plastic bearing edge without a wooden shell), an additional lip or collar area is required to accommodate the thread. Become.

  FIG. 9 shows yet another preferred embodiment in which the interior lamp 18 illuminates the spherical acoustic chamber 2 from the inside. The interior lamp 18 is supplied with power from a conventional power source (not shown) via a power cord 19 that connects the interior lamp 18 to the power source. The figure also shows an optional light control device 21, an optional light control device signal wiring 22, and an optional sensor 23.

  The illumination of the interior lamp 18 can be controlled in various ways. For example, the interior lamp 18 in each drum 1 may be kept on from start to finish so that all of the drums are illuminated. Similarly, some interior lights 18 in a given set of drums can be turned off so that only preselected drums are illuminated. Further, the interior lamp 18 of the drum 1 can be dynamically controlled by an optional lamp control device 21 and an optional lamp control device signal wiring 22. When using the optional light control device 21, the control device is pre-programmed so that the drum 1 turns off the interior light 18 in a preset pattern, either alone or in conjunction with other drums 1. You can also. The order of the interior lamp 18 illumination may be stored permanently in the lamp control device 21, may be controlled remotely via the lamp control device signal wiring 22, or the storage device in the lamp control device 21. May be downloaded in order. Since the lighting of the drum 1 can be operated, the artist can adjust the lighting to be suitable for a specific performance.

  Although the preferred embodiment assumes the use of internal lighting, the lamp can also be incorporated into the outer surface of the sphere, as will be appreciated by those skilled in the art. A wide variety of known techniques can be used, such as LEDs, electroluminescent (EL) lamps, and the like. Further, the illumination light may be installed anywhere inside the sphere.

  In addition to the above, the electric light control device 21 may include a sensor 23 for determining when the drum 1 is struck by a musician. Software can be incorporated into the electric light control device 21 so that the electric light control device 18 controls the illumination of the drum 1 using the input data from the sensor 23 so as to synchronize with the sound produced by the drum 1. The illumination can even be changed based on the strength of the impact on the drum 1.

  As will be appreciated by those skilled in the art, the light controller signal wiring 22 is shown as a physical signal wiring, but may be implemented simply as a wireless connection using various available techniques. As will be appreciated by those skilled in the art, the lamp control device 18 allows the musician to dynamically switch from one lighting method to another lighting method via switches, remote control devices, and the like. You may make it with enough intelligence.

  FIG. 10 shows yet another preferred embodiment in which the spherical acoustic chamber 2 has a decorative exterior design incorporating some aesthetic theme. In this embodiment, a pattern is created by sections 24 to 27 colored in different colors. For ease of illustration, this figure shows a simple pattern. However, any aesthetic treatment may be used, as will be appreciated by those skilled in the art. The pattern may be a map of the earth, a personal image, a photographic image, a reproduction of a painting, or any aesthetic process suitable for a particular performance. It is even possible to have a removable aesthetic treatment that can be changed from one show to another.

  The advantages of the embodiments of FIGS. 9-10 can also be combined in various ways. The interior lamp 18 can reinforce the decorative exterior design by illuminating the drum 1 from the inside. The interior lamp 18 need not be limited to a conventional white lamp. For example, the interior lamp 18 may be an ultraviolet lamp designed to react with a decorative design using fluorescent paint. Similarly, the drum may be illuminated with colored light, laser light, or a projected image. This expands the range of possible illumination of the drum 1. The drum 1 need not be used with only one type of paint or one type of lighting. For example, a combination of conventional paint and fluorescent paint, white light (eg, normal visible light spectrum), chromatic light, laser light, and / or ultraviolet light (eg, commonly referred to as black light) You may use it in combination with the interior lamp 18 to produce. The availability of multiple types of lighting can be utilized for a light controller 21 that is programmed to create an entertaining light show associated with a particular musical piece.

  This process allows the image to be changed during the performance. For example, when white light is turned on, the first image applied to the spherical acoustic chamber 2 is visible. If a second image is applied on the spherical acoustic chamber 2 using fluorescent paint, it cannot be seen until the interior lamp 18 incorporating the ultraviolet light bulb is turned on. As a result, an image is displayed when only white light is turned on, a second image is displayed only when ultraviolet light is turned on, and a third image is a combination of white light and ultraviolet light. It will be displayed when both are lit. In addition, the combination of white light and ultraviolet light is enhanced by adding independent chromatic light, laser light, and / or projection images, so that the ability of the light control device 21 is expanded and entertainment is provided via the drum 1. Can be provided. This provides the flexibility for an artist to design a fun program that combines both musical and visual entertainment.

  Although the present invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes can be made in detail without departing from the spirit, scope and teachings of the invention. it can. For example, a spherical acoustic chamber can be used with a conventional tuning system based on a knob. Similarly, the rotational tuning system provided herein can also be used with conventional drums. Accordingly, the invention disclosed herein is to be limited only as specified in the claims.

FIG. 1A is a side view of a preferred embodiment of the present invention showing a drum shell having a spherical acoustic chamber attached to a drum head. FIG. 1B is an edge view of a preferred embodiment of the present invention showing a drum head attached to a drum shell having a spherical acoustic chamber. FIG. 2A shows a preferred embodiment of the present invention in which the drum head is secured to the drum shell by a rim. FIG. 2B illustrates another preferred embodiment of the present invention in which an integral drum head / rim combination is secured to the drum shell. FIG. 2 shows a cross-sectional view of a preferred embodiment of the present invention showing how the drum head is assembled to the drum shell. FIG. 6 is a cut-away view of the edge of the collar shell threaded. Also shown is a bearing edge formed integrally with the threaded collar of this embodiment. A spherical acoustic chamber attached to the drum head and tuning ring is shown. Fig. 5 shows an alternative preferred embodiment in which the spherical acoustic chamber has an extension that forms a bearing edge that is attached to a threaded collar. Fig. 4 shows an alternative preferred embodiment where the acoustic elements are installed inside a spherical acoustic chamber or are shaped inside the drum to create a specific change in the sound produced by the drum. Fig. 4 shows yet another preferred embodiment in which holes are formed in the wall of the spherical acoustic chamber for the purpose of changing the quality of the sound produced by the drum and for decoration purposes. Fig. 6 shows yet another preferred embodiment in which the interior light illuminates the spherical acoustic chamber from the inside. Fig. 4 shows yet another preferred embodiment in which a decorative exterior design is applied to the spherical acoustic chamber.

Claims (20)

In the drum
A spherical acoustic chamber;
Color,
Means for attaching the spherical acoustic chamber to the collar;
A drum head,
A tuning ring, wherein the tuning ring is adjustably engaged with the collar so that by rotating the tuning ring, tension applied to the drum head is adjusted to tune the drum. Drums.   The drum of claim 1, wherein the spherical acoustic chamber is made of wood, metal, plastic, fiberglass, stone composite, or a combination thereof.   The drum of claim 1, wherein a threaded rim is used as a means for attaching the drum head to the threaded collar. When rotating the threaded rim on the threaded collar, the drum head is sandwiched between them, and the tension acting on the drum head increases as it rotates,
4. The drum of claim 3, wherein the drum head is thereby tuned by rotating the drum head over the collar.   The drum of claim 1, further comprising at least one hole in the spherical acoustic chamber having a size sufficient to change an audio quality of sound produced by the drum.   The acoustic element according to claim 1, further comprising at least one acoustic element inside the spherical acoustic chamber, the acoustic element having a shape that changes the acoustic quality of the drum when the drum is struck. Drums.   7. A drum according to claim 6, wherein the acoustic element is made of a material that will soften the sound produced by the drum.   The drum of claim 6, wherein the acoustic element is made of a material that will sharpen the sound produced by the drum.   The drum of claim 1, further comprising an electric lamp.   The drum according to claim 9, further comprising means for controlling the operation of the electric lamp.   11. A drum according to claim 10, further comprising means for manually operating the electric lamp. It further comprises an electric light control device that dynamically controls the operation of the electric light,
The drum according to claim 10, wherein the electric lamp is activated or deactivated in the process of music generation.   13. A drum as claimed in claim 12, wherein the light control device comprises means for executing a pre-programmed set of commands for controlling the operation and deactivation of the light. A lamp control signal wiring for supplying a control signal to the lamp control device;
Accordingly, the drum control device according to claim 12, wherein the lamp control device is dynamically controlled by a signal input via the lamp control device signal wiring.   The spherical acoustic chamber has no internal edges and / or protrusions to prevent the generation of interference waves, or has internal edges and / or protrusions to change the acoustic quality of sound. The drum of claim 6, wherein the drum is a round sphere.   The drum according to claim 12, further comprising a sensor connected to the light control device and providing input data used by the light control device to control illumination of the light to the light control device. . The electric lamp is disposed inside the spherical acoustic chamber;
The drum of claim 12, wherein the aesthetic design on the spherical acoustic chamber is illuminated by the electric light.   The drum of claim 17, wherein the electric light produces white light, ultraviolet light, chromatic light, laser light, internal image projection, or a combination thereof.   19. The drum of claim 18, wherein the aesthetic design on the spherical acoustic chamber is formed of a material that responds to white light, ultraviolet light, or both when illuminated by an electric lamp. A plurality of light sources that independently control the operation of white light, ultraviolet light, chromatic light, laser light, and / or projection images;
At least one light source that illuminates the first image;
And at least one second light source that illuminates the second image,
The drum of claim 12, wherein a plurality of images are dynamically presented by illuminating the aesthetic design with the combination of light sources.

Images