Pitch and sound change coverage of a drum
The pitch and timbre control device addresses issues with existing drumhead covers by using magnets on the resonant head to secure the cover underneath the drum, ensuring secure attachment and precise sound alteration without impairing striking-side performance.
Patent Information
- Application Number
- DE102024117345
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-12-24
AI Technical Summary
Existing drumhead covers that alter the tone and pitch by covering the striking side of the drum can impair sound production, cause stick snagging, and complicate delicate playing techniques, while room acoustics significantly affect drum tone and tuning consistency.
A pitch and timbre control device using magnets attached to the tension hoop of the resonant head, allowing the cover to be placed on the underside of the drum, ensuring secure attachment and minimal vibration interference.
Enables tone and pitch alteration without covering the striking side, preventing stick snagging and maintaining playing precision, while adapting to varying room acoustics with consistent sound quality.
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Abstract
Description
[0001] The invention relates to a pitch and sound change cover for a drum, comprising a drumhead cover and a support on which the drumhead cover is stretched, wherein the drumhead cover has a first surface and a second surface, wherein the first surface is designed such that it faces a drumhead of the drum.
[0002] A drum is a musical instrument belonging to the percussion family. Drums consist of at least one membrane, the so-called drumhead, which is stretched over a drum shell by means of a hoop and is struck either directly with the player's hands or with a drumstick to produce a sound.
[0003] Furthermore, some drums have a drumhead on the underside (also called the batter head) in addition to the drumhead on the striking side. This underside drumhead serves as the resonant head. When the batter head is struck, the air inside the drum vibrates, producing a sound. The resonant head is set into vibration by the vibrating air, resulting in a fuller and longer-lasting sound. The resonant head also influences the tone and timbre of the drum. By adjusting the tension of the resonant head, the sound of the drum set can be altered. A tighter resonant head produces a higher pitch, while a looser one results in a lower pitch. The tuning of the drum can also be changed using the resonant head to adapt to different musical contexts.By changing the tension of the resonant head, the drummer can fine-tune the sound of the drum to achieve the desired sound quality.
[0004] The resonant head of a drum can also have negative effects. Depending on the head manufacturer and model, different and undesirable overtones can be produced, making it difficult for the drummer to achieve the desired tone. Furthermore, tuning the drum becomes more challenging. This can have several causes. On older or very inexpensive drum kits, the bearing edge may be worn or poorly finished during production, or rounded bearing edges may be the reason why the overtones cannot be influenced by tuning and remain. Additionally, many drummers, lacking proper tuning knowledge, cannot tune the head correctly to produce the desired tone or eliminate the troublesome overtones. Therefore, they often look for a quick and easy way to bypass fine-tuning. Moreover, the drum's tone is extremely dependent on the room acoustics.For example, a perfectly tuned drum kit sounds different in a recording studio than in an arena, on an outdoor stage, or in small venues. This is a problem that all drummers face, and they must try to adapt the sound to the given room acoustics.
[0005] To quickly change the tone / sound of a drum, a pitch and tone-altering drumhead cover is known from US 9,159,305 B1. This cover lowers the fundamental pitch, tone, and tuning of the drum. It is placed over the entire surface of the drumhead on the batter side of the drum. The resulting layer between the drumsticks and the drumhead allows the fundamental pitch to be lowered and the pitch, resonance, sustain, overtones, timbre, and overall sound of the drum to be altered. Furthermore, the high frequencies of the drum are also attenuated. This known drumhead cover is used particularly for snare drums.
[0006] While the familiar drumhead cover has proven its worth in principle, it does have its drawbacks. Because the cover is placed on the striking side of the drum, it can impair the drum's sound production. Specifically, the cover can cause too much sound to be absorbed, significantly altering the tone and not just dampening the overtones. Furthermore, the cover on the striking side provides a point of snagging for the drumstick. This can lead to the loss of the stick or at least to the drummer going out of time, putting them under stress as they have to pick up a new stick or are distracted by the out-of-time.Furthermore, a drumhead cover resting on the striking side of the drum also impairs playing techniques that rely on subtle and delicate touches. Subtle playing styles require contact between the drumstick and the drumhead on the striking side to better perceive the rebound.
[0007] The object of the invention is to provide a pitch and timbre control device that overcomes the disadvantages of the prior art. In particular, the pitch and timbre control device should function without covering the drumhead on the striking side.
[0008] This task is solved by the fact that the pitch and sound change cover has at least one magnet and that this magnet is at least one magnet in contact with a magnetic section of a tension hoop of the drum that stretches the drumhead.
[0009] The at least one magnet allows a drumhead cover with its carrier to be placed on the resonant head on the underside of a drum, whereby the at least one magnet then fixes the drumhead cover with its carrier to the tension hoop of the drum and thus prevents the drumhead cover from falling off the underside.
[0010] In an advantageous embodiment, the carrier is a circular ring or a circular ring segment, wherein the at least one magnet is arranged at the outer edge of the circular ring or the circular ring segment. By designing the carrier as a circular ring or circular ring segment, a large free area remains for the drumhead cover stretched onto the carrier. Understandably, the outer radius of the circular ring or the circular ring segment is adapted to an inner radius of the typically round tension hoop. The outer radius of the circular ring or the circular ring segment is designed such that an inner contour of the round tension hoop encloses an outer contour of the circular ring or the circular ring segment. The circular ring or the circular ring segment is thus designed so that it can be arranged within the tension hoop.
[0011] An advantageous embodiment provides that the circular ring or circular ring segment has a layer thickness and that at least one magnet is embedded or attached to the end face formed by this layer at the outer edge of the circular ring or circular ring segment. A magnet embedded or attached to the end face is thus not in contact with the eardrum and therefore does not impair its vibrations.
[0012] It is proposed that the circular ring or circular ring segment consist of a layer of felt, a layer of plastic, a layer of cork, a layer of wood, a layer of metal, a layer of cotton fabric, or a layer formed from an elastic material.
[0013] In one design, the pitch and timbre alteration cover is arranged so that the first surface of the eardrum cover rests on the eardrum. With this arrangement, damping is primarily achieved through direct contact between the eardrum cover and the eardrum.
[0014] In another embodiment, the pitch and timbre alteration cover is arranged such that the first surface of the eardrum cover is positioned at a distance from the eardrum. With this arrangement, damping is primarily achieved by a cavity created by the distance between the eardrum cover and the eardrum. Furthermore, the damping can be influenced by varying the distance between the eardrum cover and the eardrum.
[0015] One design stipulates that the distance between the first surface of the eardrum cover and the eardrum is determined by the thickness d of the substrate. This ensures a uniform distance between the eardrum cover and the eardrum each time the pitch and tone-altering cover is applied.
[0016] Furthermore, it is proposed that at least one magnet be a neodymium magnet, a finished magnet, an AlNiCO magnet, a rare earth magnet, a ceramic magnet, a flexible magnet, a coupled magnet, a permanent magnet with high resistance to demagnetization or a superconducting magnet, and be designed as a magnetic tape, bar magnet, ring magnet, ring segment magnet, magnetic sphere or magnetic closure.
[0017] It is further proposed that the drumhead covering consist of a cotton fabric, a polyester fabric or similar synthetic fabric, a cork layer, a PVC layer, a layer of natural or synthetic rubber, a wood layer or a metal foil.
[0018] In one design, the drumhead is the resonant head of the drum. In this design, the drumhead cover rests on the resonant head.
[0019] Naturally, the pitch and tone alteration cover according to the invention is also applicable for placement on the drumhead. The at least one magnet prevents the drumhead cover from slipping when the drum is played.
[0020] An advantageous embodiment provides that a handle element for gripping the pitch and sound change cover is provided on the carrier.
[0021] Exemplary embodiments of the invention are explained below with reference to the drawings. The drawings show: Fig. 1 a sectional view of an embodiment of the pitch and sound change cover of a drum according to the invention Fig. 2 a detailed representation of section A from Fig. 1 Fig. 3. A view of the second surface of the eardrum covering Fig. 4. A top view of the first surface of the tympanic membrane covering Fig. 5 a detailed presentation according to Fig. 2 of a further version of the pitch and sound change cover
[0022] Fig. Figure 1 shows a sectional view of an embodiment of the pitch and sound alteration cover according to the invention for a drum. The drum has a drum shell 1, a drumhead 2 on a striking side of the drum, a drumhead 3 on a resonant side of the drum, a tension hoop 1a for tensioning the drumhead 2 on the striking side, and a tension hoop 1b for tensioning the drumhead 3 on the resonant side.
[0023] The pitch and timbre alteration cover comprises a drumhead cover 4 and a support 5. The drumhead cover 4 is stretched over the support 5. Furthermore, the drumhead cover 4 has a first surface and a second surface, the first surface facing the drumhead 3 on the resonant side and arranged so that it rests on the drumhead 3 of the resonant side of the drum.
[0024] Fig. Figure 2 shows a detailed view of section A from Fig. 1. Furthermore, the pitch and tone alteration cover has magnets 6 which are in contact with a magnetic section of the tension hoop 1b of the drum, which tensions the drumhead 3 on the resonant side. In the illustrated embodiment, the magnets 6 are designed as bar magnets, one side of which is in contact with the tension hoop 1b. The magnetic force exerts a holding force between the magnets 6 and the tension hoop 1b, thus holding the support 5 with the drumhead cover 4 against the tension hoop 1b.
[0025] Fig. Figure 3 shows a top view of the second surface of the drumhead cover 4. In the illustrated embodiment, the support 5 is designed as a circular segment, with the magnets 6 arranged on the outer edge of this circular segment. In the illustrated embodiment, three bar magnets are provided in the circular segment. The circular segment has a layer thickness d, and the magnets 6 are embedded in the end face 5a formed by this layer at the outer edge of the circular segment. However, the invention is not limited to this. Depending on the total weight of the support 5 and the drumhead cover 4, the number of magnets 6 must be adjusted accordingly. The heavier the total weight, the more magnets 6 must be provided. The magnetic force of the individual magnets 6 themselves must also be taken into account. The stronger the magnetic force of a single magnet 6, the fewer magnets 6 need to be used. As shown in Figure 3, the number of magnets 6 must be adjusted accordingly. Fig. As shown in Figure 3, the distribution of the magnets 6 along the outer edge should preferably be as evenly distributed as possible, so that good fixation of the pitch and sound change coverage is achieved around the circumference.
[0026] A handle element 7 for gripping the pitch and sound alteration cover is provided on the carrier 5. This handle element 7 is, for example, designed as a textile section attached to the carrier 5. This textile section can also be used to attach a label.
[0027] Fig. Figure 4 shows a top view of the first surface of the drumhead cover 4, which rests on the drumhead 3 on the resonant side of the drum.
[0028] The invention is not limited to the embodiment shown. In an embodiment not shown, the circular ring segments can also have a different opening angle. In another embodiment not shown, the support is a circular ring and the magnets 6 are arranged on the outer edge of the circular ring.
[0029] Likewise, the invention is not limited to the magnets 6 being embedded in the end face 5a at the outer edge of the circular ring segment. The magnets 6 can also be attached in other ways. For example, the magnet 6 can be a magnetic strip that rests on the end face. Or the magnets 6 can be designed as magnetic closures that are attached to a surface 5b of the circular ring segment facing away from the drumhead 3.
[0030] The circular ring or ring segment consists of a layer of felt, plastic, cork, wood, metal, cotton fabric, or an elastic material. The magnets can be neodymium magnets, pre-assembled magnets, AlNiCo magnets, rare-earth magnets, ceramic magnets, flexible magnets, coupled magnets, permanent magnets with high resistance to demagnetization, or even superconducting magnets. In addition to the previously mentioned forms such as magnetic strips, bar magnets, or magnetic closures, the magnets can also be designed as ring magnets, ring segment magnets, or magnetic spheres. The drumhead cover consists of cotton fabric, polyester fabric or similar synthetic material, a layer of cork, a layer of PVC, a layer of natural or synthetic rubber, a layer of wood, or a metal foil.
[0031] In other embodiments not shown, the drumhead cover 4 with the support 5 rests on the drumhead 2 of the striking side of the drum.
[0032] Fig. 5 shows a detailed representation according to Fig. 2 of another version of the pitch and tone change cover. Here is one to Fig. Two identical versions of the pitch and tone alteration cover are rotated and thus arranged so that the first surface of the drumhead cover is spaced away from the drumhead. The distance between the first surface of the drumhead cover and the drumhead is determined by the thickness d of the substrate. Reference symbol list 1 drum kettle 1a Tension hoop 1b Tension hoop 2. Eardrum 3. Eardrum 4. Eardrum covering 5 carriers 6 magnets 7 Handle element QUOTES INCLUDED IN THE DESCRIPTION
[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0000] US 9,159,305 B1
[0005]
Claims
[1] Pitch and sound alteration cover of a drum, comprising a drumhead cover and a support on which the drumhead cover is stretched, wherein the drumhead cover has a first surface and a second surface and the first surface is designed to face a drumhead of the drum, characterized by that the pitch and sound alteration cover has at least one magnet and that this magnet is at least one magnet in contact with a magnetic section of a tension hoop of the drum that tensions the drumhead. [2] Pitch and sound change coverage according to claim 1, characterized by that the carrier is a circular ring or a circular ring segment and that at least one magnet is arranged on the outer edge of the circular ring or circular ring segment. [3] Pitch and sound change coverage according to claim 2, characterized bythat the ring or ring segment has a layer thickness d and that at least one magnet is embedded or attached to the end face formed thereby on the outer edge of the ring or ring segment. [4] Pitch and sound change coverage according to claim 3, characterized by that the circular ring or circular ring segment consists of a layer of felt, a layer of plastic, a layer of cork, a layer of wood, a layer of metal, a layer of cotton fabric or a layer formed from an elastic material. [5] Pitch and sound change coverage according to any of the preceding claims, characterized by that the first surface of the eardrum covering rests on the eardrum. [6] Pitch and sound change coverage according to any one of claims 1 to 4, characterized by that the first surface of the eardrum covering is arranged at a distance from the eardrum. [7] Pitch and sound change coverage according to claims 3 and 6, characterized by , that the distance between the first surface of the eardrum covering and the eardrum is determined by the layer thickness d of the support. [8] Pitch and sound change coverage according to one of the preceding claims, characterized by , that at least one magnet is a neodymium magnet, a finished magnet, an AlNiCO magnet, a rare earth magnet, a ceramic magnet, a flexible magnet, a coupled magnet, a permanent magnet with high resistance to demagnetization or a superconducting magnet and is designed as a magnetic tape, bar magnet, ring magnet, ring segment magnet, magnetic sphere or magnetic closure. [9] Pitch and sound change coverage according to any of the preceding claims, characterized bythat the drumhead covering consists of a cotton fabric, a polyester fabric or similar synthetic fabric, a cork layer, a PVC layer, a layer of natural or synthetic rubber, a wood layer or a metal foil. [10] Pitch and sound change coverage according to any of the preceding claims, characterized by , that the drumhead is the batter head or the resonant head of the drum. [11] Pitch and sound change coverage according to one of the preceding claims, characterized by , that a handle element for gripping the pitch and sound change cover is provided on the carrier.
Citation Information
Patent Citations
Sound modification device for percussion instruments
US20110192268A1
Percussion practice aid
US6686526B2
