Percussive instrument producing cymatic effects
10621960 ยท 2020-04-14
Inventors
Cpc classification
G10D13/24
PHYSICS
G10D13/08
PHYSICS
International classification
Abstract
A percussive instrument is provided. The percussive instrument includes a drum body and a plurality of tonal elements extending over a bottom surface of the drum body. The tonal elements may be struck or plucked to produce sound. The drum body includes a base and a peripheral wall extending upwardly from the base and has an open end opposite the base through which sound may be projected. The drum body may be filled with liquid to produce cymatic effects when the instrument is played and to provide an additional medium through which sound waves emitted from the tonal elements may pass over or through.
Claims
1. A percussive instrument, comprising: a drum body having an open end for receiving liquid therein, a base opposite the open end, and a peripheral wall extending upwardly from the base; and a plurality of tonal elements secured proximate the open end and extending over a bottom surface of the drum body.
2. The percussive instrument of claim 1, wherein the peripheral wall has a first portion having a diameter greater than the diameter of the base and a second portion interconnecting the first portion and the base.
3. The percussive instrument of claim 1, wherein at least one tonal element within the plurality of tonal elements has a first side of a first length and a second side of a second length different than the first length.
4. The percussive instrument of claim 1, wherein each tonal element within the plurality of tonal elements has a first side and a second side extending parallel to the first side.
5. The percussive instrument of claim 1, wherein the plurality of tonal elements are formed within a single plate secured to the peripheral wall.
6. The percussive instrument of claim 1, wherein the plurality of tonal elements includes a first tonal element extending parallel to a second tonal element.
7. The percussive instrument of claim 1, wherein the plurality of tonal elements comprises a first set of tonal elements and a second set of tonal elements, and wherein the tonal elements of the first set extend towards the tonal elements of the second set.
8. The percussive instrument of claim 1, wherein each tonal element of the plurality of tonal elements has a fixed first end and a free second end having a width, and wherein the width of the second end of at least two tonal elements within the plurality of tonal elements are equal.
9. The percussive instrument of claim 8, wherein the plurality of tonal elements includes a first tonal element and a second tonal element separated by a spacing equal to the width of the first tonal element's second end.
10. The percussive instrument of claim 1, wherein the plurality of tonal elements are of different lengths.
11. The percussive instrument of claim 1, further comprising a protective guard covering at least a portion of the percussive instrument's exterior surface.
12. A percussive instrument, comprising: an integrally formed drum body defined by a base and a peripheral wall extending upwardly from the base, the drum body having an open end opposite the base for receiving a liquid therein; and a plurality of tonal elements secured proximate the open end and extending over one or more portions of a bottom surface of the drum body.
13. The percussive instrument of claim 12, wherein the surface area of the one or more portions of the bottom surface is less than half of the total surface area of the bottom surface.
14. The percussive instrument of claim 12, wherein the plurality of tonal elements are disposed at the same height over the bottom surface.
15. The percussive instrument of claim 12, wherein the plurality of tonal elements includes at least one set of tonal elements, and wherein each tonal element within a set of the at least one set of tonal elements extends in the same direction as the other tonal elements within the set.
16. The percussive instrument of claim 12, wherein each tonal element of the plurality of tonal elements has a fixed first end and a free second end having a width, the width of each second end within the plurality of tonal elements being equal.
17. The percussive instrument of claim 16, wherein the plurality of tonal elements includes at least one set of tonal elements, and wherein a spacing exists between adjacent tonal elements within each set of the at least one set of tonal elements, the spacing being equal to the width.
18. The percussive instrument of claim 12, wherein the peripheral wall has a first portion having a diameter greater than the diameter of the base and a curved second portion interconnecting the first portion and the base.
19. The percussive instrument of claim 12, wherein the drum body comprises metal.
20. The percussive instrument of claim 12, further comprising the liquid disposed within an interior of the drum body.
Description
DESCRIPTION OF THE DRAWINGS
(1) These and other features, aspects, and advantages of the present disclosure will become better understood with regard to the following description, appended claims, and accompanying drawings where:
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DETAILED DESCRIPTION
(10) In the Summary above and in this Detailed Description, and the claims below, and in the accompanying drawings, reference is made to particular features, including method steps, of the invention. It is to be understood that the disclosure of the invention in this specification includes all possible combinations of such particular features. For example, where a particular feature is disclosed in the context of a particular aspect or embodiment of the invention, or a particular claim, that feature can also be used, to the extent possible, in combination with/or in the context of other particular aspects of the embodiments of the invention, and in the invention generally.
(11) The term comprises and grammatical equivalents thereof are used herein to mean that other components, steps, etc. are optionally present. For example, a system comprising components A, B, and C can contain only components A, B, and C, or can contain not only components A, B, and C, but also one or more other components. The term removably secured and grammatical equivalents thereof are used herein to mean the joining of two components in a manner such that the two components are secured together, but may be detached from one another and re-secured together without requiring the use of specialized tools.
(12) Where reference is made herein to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously (except where the context excludes that possibility), and the method can include one or more other steps which are carried out before any of the defined steps, between two of the defined steps, or after all the defined steps (except where the context excludes that possibility).
(13) Turning now to the drawings,
(14) The instrument 100 includes a drum body 105 and a plurality of tonal elements 140. The drum body 105 is defined by a base 110 and a peripheral wall 120 extending upwardly from the base 110. In an embodiment, the drum body 105 may be integrally formed such that the base 110 and peripheral wall 120 are permanently joined together to form a single component of the instrument 100. In other embodiments, the base 110 and peripheral wall 120 may be separate components that are removably secured together to form the drum body 105. In some embodiments, the base 110 and peripheral wall 120 may each retain a generally annular shape so that the drum body 105 forms a cylinder having an open end 150 and an opposite closed end, as shown best in
(15) As shown best in
(16) In other embodiments, the peripheral wall 120 may be devoid of a curved portion and comprise only a straight portion 120B such that the peripheral wall 120 extends straight up from the base 110. In such embodiments, the first diameter D.sub.1 defined by the base 110 and a the second diameter D.sub.2 defined by the peripheral wall 120 are substantially equal. In yet another embodiment, the peripheral wall 120 may comprise only a straight portion 120B that extends from the base 110 in a manner such that the base 110 and peripheral wall 120 form an obtuse or acute angle.
(17) In an embodiment, the drum body 105 is constructed, at least partially, of a metal material. In one such embodiment, the drum body 105 is constructed of a noncorrosive or corrosion-resistant material, such as stainless steel, chrome, aluminum, and the like to prevent rust or other deterioration of the drum body 105. In other embodiments, other materials such as wood, plastic, combinations thereof, or any other material suitable for the applications described herein may be utilized in the construction of the drum body 105. In some embodiments, the drum body 105 may be constructed so that the base 110, or at least a portion thereof, is flexible or semiflexible and acts as a diaphragm when the instrument 100 is played.
(18) Each tonal element within the plurality of tonal elements 140 is configured to vibrate at a frequency within the range of audible frequencies for humans when struck or plucked. Each tonal element within the plurality of tonal elements 140 extends over a portion of a bottom surface of the drum body 105 and has a fixed first end 140A and a free second end 140B. As used herein, the bottom surface of the drum body may include the interior surface of the base 110A alone or, as shown best in
(19) In one embodiment, the plurality of tonal elements 140 are formed within a single plate 130 such that each tonal element of the plurality of tonal elements 140 represents a portion of the plate 130 that was not cut and subsequently removed during manufacture. In an embodiment, the plate 130 is constructed, at least partially, of a metal material. To prevent rust or other deterioration of the plate 130, the plate 130 may, in some embodiments, be constructed of a noncorrosive or corrosion resistant material, such as stainless steel, chrome, aluminum, and the like. In other embodiments, other materials such as wood, plastic, combinations thereof, or any other material suitable for the applications described herein may be utilized for the plate 130. In some embodiments, the plurality of tonal elements 140 may be formed within the plate 130 via laser cutting or water jet cutting a metal plate. The diameter of the plate 130 is equal to or greater than the diameter of the rim 120C of the peripheral wall 120 so that the plate 130 can be disposed on top of and be secured to the rim 120C of the peripheral wall 120, as shown best in
(20) In other embodiments, each tonal element of the plurality of tonal elements 140 may comprise an individual member that is separate from and unconnected to the other tonal elements. In such embodiments, the first end 140A of each tonal element may be secured to the peripheral wall 120 such that each tonal element is generally perpendicular to the peripheral wall 120 at the point of attachment and extends inwardly towards the center of the drum body 105. In one such embodiment, the first end 140A of each tonal element may be secured to the rim 120C of the peripheral wall 120.
(21) As shown best in
(22) When the instrument 100 is assembled, each tonal element of the plurality of tonal elements 140 is preferably secured proximate to the drum body's 105 open end 150. In some embodiments, the tonal elements may be arranged such that the plurality of tonal elements 140 are disposed along the same horizontal plane so that the plurality of tonal elements 140 are disposed at the same height above the bottom surface of the drum body 105. Alternatively, the tonal elements may be disposed at different heights about the plate 130 or secured at different heights about the peripheral wall 120. As shown by at least tonal elements 140F.sub.12 and 140F.sub.13 in
(23) Each tonal element has a first side 140C and a second side 140D. As shown in
(24) In some embodiments, the tonal elements within the plurality of tonal elements 140 may be divided into separate sets, where each set is secured at a different locations around the instrument 100. For instance, as shown in
(25) As further shown in
(26) In some embodiments, the instrument 100 may further comprise a protective guard 135. The protective guard 135 may act as a shock absorber to prevent the drum body 105 or plurality of tonal elements 140 from bending or otherwise deforming in instances where the instrument 100 is dropped or is otherwise subjected to strenuous forces. To this end, the protective guard 135 may be constructed, at least partially, of a rubber or plastic material. Alternatively, the protective guard 135 may be constructed, at least partially, of wood or any other suitable material. In some embodiments, the protective guard 135 may be designed to cover the entirety of the instrument's 100 exterior. In other embodiments, as shown in
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(28) Prior to playing the instrument 100, liquid 300, such as water, may be introduced into the interior of the drum body 105, as shown in
(29) The drum body 105 may be filled within any volume of liquid 300, though the vibrational effect of the drum body 105, and specifically vibration of the base 110, on the liquid 300 may be most discernable when the volume of liquid 300 is such that the base 110 is partially covered or just barely completely covered. As the various tonal elements may vibrate at different frequencies, the vibrations experienced by the drum body 105, and thus patterns or designs within the liquid 300 contained therein, may also vary depending on which tonal elements are struck or plucked. Accordingly, striking or plucking the various tonal elements 140 may cause some of the liquid 300, as shown in
(30) In addition to providing visual patterns or designs, introducing a liquid 300 into the drum body 105 may serve to provide an additional medium through which the sound waves emitted from the tonal elements may pass. When the instrument 100 is played without liquid 300, the sound waves emitted by the striking or plucking of the tonal elements pass through air alone, whereas the sound waves may pass through two mediums when liquid 300 is present in the drum body 105. Because the refractive index of air and a liquid 300, such as water, are generally different, the sound waves may be refracted such that that directional path and wavelength of the sound waves change as they pass from the air to liquid 300, thereby altering the pitch of the sound wave. Depending on the refractive index of the liquid 300 used, the extent to which the sound waves are refracted may vary. By rotating or tilting the drum body 105, users 400 may influence the location at which the liquid 300 pools within the drum body 105. Accordingly, by moving the drum body 105 users 400 may influence the extent to which sound waves emitted from struck or plucked tonal elements 140 pass through the liquid 300. In this way, users 400 may alter the pitch or otherwise affect the sound elicited from the tonal elements while actively playing the instrument 100.
(31) It is understood that versions of the inventive subject matter of the present disclosure may come in different forms and embodiments. Additionally, it is understood that one of skill in the art would appreciate these various forms and embodiments as falling within the scope of the inventive subject matter disclosed herein.