30 results about "Drumhead" patented technology

A tuning device for a drum includes a drum attachment mechanism having a shell attachment means fixedly attachable to a drum shell and a hoop attachment means for engaging and tensioning a drum head. The drum attachment mechanism further includes at least one non-rotating annular ring with a circumferential slot and a plurality of fasteners forming part of the shell or hoop attachment means. A tuning ring is concentrically disposed between opposing edges of the non-rotating annular ring and is rotatable therewithin. The tuning ring includes a plurality of helical channels that accommodate the fasteners. A tuning tab extends outwardly from the tuning ring through the circumferential slot to control rotation of the tuning ring. Rotation of the tuning ring causes axial movement of the tuning ring and the non-rotating annular ring, thereby increasing or decreasing tension on the drum head.

The invention relates to the technical field of pronunciation control, and provides a non-contact Hall drumhead vibration sensing and intelligent pronunciation control method and system, and the method comprises the steps: collecting an original Hall sensing electric signal generated when a user knocks a drumhead through a Hall sensor array in a drumhead, carrying out the signal preprocessing of the original Hall sensing electric signal, and obtaining a pre-processed signal; a standard Hall sensing electric signal is obtained, physical characteristic parameters are extracted, and a first tympanic membrane tension parameter, a damping coefficient and a striking position are obtained; obtaining an initial tympanic membrane tension parameter through a tympanic membrane stress sensor, carrying out the comparative analysis of the first tympanic membrane tension parameter and the initial tympanic membrane tension parameter, obtaining a tension decay value, and obtaining a pitch parameter based on a pre-constructed tension decay value-pitch mapping relation. According to the invention, through signal preprocessing and physical characteristic parameter extraction, key quantities reflecting the physical state of the tympanic membrane, such as a tympanic membrane tension parameter, a damping coefficient and a striking position, are systematically extracted, and a real and accurate physical basis is provided for sound generation.

A drum assembly that includes a circular frame member that defines a frame opening therein, an upper drum head member secured to the frame member and spanning the frame opening, a lower drum head member positioned below the upper drum head member, secured to the frame member and spanning the frame opening, and a threaded rod assembly extending between the upper drum head member and the lower drum head member. The threaded rod assembly includes an upper threaded member that is threadingly engaged with the upper drum head member. Rotation of the upper threaded member in a predetermined direction moves the upper drum head member away from the lower drum head member, such that tension is increased in the upper drum head member.

The invention belongs to the field of musical instruments, and particularly relates to mute drum leather and a preparation method thereof. The silent drum leather comprises an original sound drum leather layer, and a striking surface of the original sound drum leather layer is provided with a concave-convex structure; the microcellular foaming energy absorption layer and the bottom surface of the acoustic drum skin layer are compounded and are self-bonded into a whole; wherein the microcellular foaming energy absorption layer is of a closed-cell microcellular structure and is used for absorbing vibration energy; the concave-convex structure of the striking surface is used for dispersing sound head energy during striking, and the concave-convex structure and the microcellular foaming energy absorption layer are in synergistic effect to jointly achieve noise reduction and keep the striking touch feeling. According to the mute drum leather, the concave-convex structure is arranged on the striking surface of the original sound drum leather layer to disperse sound head energy, and the thermoplastic polyurethane material microcellular foaming layer is integrally formed on the back surface of the original sound drum leather layer through in-mold foaming to efficiently absorb vibration, so that the striking noise is remarkably reduced, and meanwhile, the real striking touch sense and rebound response are completely reserved.

A drum-mounted furniture-grade speaker driver system comprising at least one drum shell, at least one drumhead, at least one speaker driver, and at least one reinforcement ring. The at least one drumhead is mounted in an opening of the drum shell. The at least one speaker driver is mounted in an opening in the at least one drumhead. The at least one reinforcement ring is sized to span an area between an interior perimeter of the opening in the at least one drumhead and an outer perimeter of the at least one speaker driver. The at least one speaker driver has at least one electronic speaker terminal thereon. A length of speaker wire electrically connects the at least one speaker driver to an amplifier and the amplifier to at least one terminal on an exterior surface of the at least one drum shell.

This percussion instrument aims to improve playability by suppressing changes in the feel of the drumhead caused by the drumhead material. [Solution] The percussion instrument comprises a cylindrical body 10 with an open end 11 on one side in the axial direction to which a head is attached, a rim sensor 3 for detecting a strike to the rim portion corresponding to the open end, a head sensor 4 for detecting a strike to the head, a support portion 20 positioned at a distance inside the body when viewed from the axial direction and at a distance on the other side in the axial direction relative to the head to which the head is attached to support the rim sensor, a plurality of connecting portions 30 extending from the support portion to the body and connecting the support portion and the body, and arranged at a distance in the circumferential direction D3 of the body, and a plurality of openings 50 opening to the other side in the axial direction between each adjacent connecting portion in the circumferential direction. The head sensor is attached to the connecting portion and contacts the head.

The utility model relates to the technical field of percussion instruments, and discloses a music rhythm percussion instrument which comprises a support, the top end of the support is fixedly connected with a bracket, the bracket is internally provided with a drum body, the inner wall of the drum body is fixedly connected with drum leather, and the drum body is internally provided with a volume adjusting mechanism. The volume adjusting mechanism comprises two fixing shells and two supporting plates, and the outer surface of each hand screw is fixedly connected with an auxiliary bearing. According to the music rhythm percussion instrument, through mutual cooperation of the support, the bracket, the drum body, the drum leather, the fixing shell, the supporting block, the hand-screwing screw rod, the top disc, the auxiliary bearing, the non-slip mat, the supporting plate, the fixing cylinder, the sliding rod, the soft bristle plate, the damper and the back-jacking spring, the drum body with the drum leather can be supported by the support and the bracket, so that the hand-screwing screw rod can be conveniently screwed; and under the assistance of the auxiliary bearing, the supporting block can be gradually jacked up in the fixed shell by the jacking disc and the non-slip mat, and the soft bristle plate is gradually close to the drum leather until being gradually clung to the bottom surface of the drum leather.

Drum pedal systems and methods are disclosed herein. Exemplary drum pedal assemblies include a footplate, a hoop clamp disposed at an anterior portion of the footplate, a footboard coupled with the footplate, a drive mechanism in operative association with the footplate and the footboard, and a beater. The lower portion of the beater is coupled with the anterior portion of the footplate via a fixed anterior hinge mechanism that is aligned toward the bottom or lower section of the drumhead.

The application discloses a production and processing device for a flower drum and relates to the technical field of flower drum production and processing. The device comprises a base, a positioning rotating structure, an extension part one, a placing plate, a tensioning structure, a pressing ring, a cutting structure and an extension part two. Two supporting rods are symmetrically fixed on the upper end of the base, and a top plate is fixed on the upper end of the two supporting rods. The positioning rotating structure is arranged on the base and is used for center positioning of a drum body and rotating the drum body after positioning. The tensioning structure can uniformly pull the edge of the drum skin in the direction away from the center port through cooperation of the upper wedge block and the lower wedge block and elastic action of the return spring, so that the drum skin is evenly and tightly covered on the upper end of the drum body. The pressing ring is driven by the extension part two to move downward, further fixes the drum skin and prevents movement or deformation in the subsequent cutting process, so that the tensioning quality and consistency of the drum skin are remarkably improved.

On the support portion 20 of the frame 2, a plurality of hexagonal recesses 20a and through holes 20b are formed, arranged so that their edges are adjacent to each other. This allows a portion of the vibration (sound) from when the drumhead 4 is struck to be released to the outside through the through holes 20b, thus suppressing the echo of the vibration within the frame 2. Furthermore, the rigidity of the support portion 20 (frame 2) can be effectively improved by the bottom wall 20c of the recesses 20a or the side wall 20d dividing the recesses 20a and the through holes 20b. Therefore, the rigidity of the frame 2 can be increased while reducing the volume when the drumhead 4 is struck.

The invention relates to a drumhead vibration conduction piece, a drumhead assembly and an electronic mute drum. The drumhead vibration conduction piece comprises a conduction piece main body and a division baffle ring, the conduction piece main body comprises a variable-caliber ring body and a back cover; the sealing bottom is arranged at the small-diameter end of the variable-caliber ring body; n division baffle rings are arranged at intervals in the direction from the center to the edge of the conduction piece main body, and the n division baffle rings are respectively arranged at positions used for equally dividing the drum surface in the radial direction; the n division baffle rings are used for dividing the hollow part of the conduction piece main body into n + 1 knocking induction cavities; along the axial direction of the conduction piece main body, the upper end of each division baffle ring and the opening at the upper end of the conduction piece main body have the same interval. An airflow through hole is formed in the wall surface, corresponding to part of the knocking induction cavity, of the conduction piece main body. According to the scheme, accurate segmentation of the knocking position of the drumhead can be achieved through the designed drumhead vibration conduction piece, and the problem that in the prior art, the knocking force and the knocking position cannot be accurately obtained is solved.

A wall portion 82 of a wall shape rising from the fixed portion 80 of the mounting member 8 is arranged around the drum sensor 3. Since the wall portion 82 protrudes higher than the cylinder portion 22 to contact the drum 4 (push up the drum 4), the tension of the drum 4 around the drum sensor 3 can be increased. Thus, even in the case where the drum sensor 3 is arranged at an eccentric position on the outer peripheral side of the drum 4, the vibration at the time of striking the drum 4 is easily detected by the drum sensor 3. Therefore, the striking of the drum 4 can be detected with good accuracy.

The utility model relates to an electronic bottom drum with an atmosphere lamp effect, which comprises a drum seat, a drum surface and a drum ring cover, a vibration sensor and a circuit board connected with the vibration sensor are arranged in the drum seat, the drum surface is aligned with the vibration sensor, the electronic bottom drum further comprises an annular lamp panel, a light blocking ring and a light guide ring, a supporting plate is arranged in the light blocking ring and abuts against the vibration sensor, and the light guide ring is arranged in the annular lamp panel. The drum surface covers the front side of the light blocking ring, the light guide ring sleeves the outer side of the light blocking ring, the light guide ring and the light blocking ring define a lamp cavity, the annular lamp panel is placed in the lamp cavity and is connected with the circuit board, and the drum ring cover sleeves the outer side of the light guide ring and is connected with the drum seat. The electronic bottom drum is provided with the LED lamp, the circuit board sends an instruction to the LED lamp to enable the LED lamp to be bright or dark, so that a drummer can recognize whether the drumhead is effectively hit or not, and the electronic bottom drum is quite convenient to use; the light blocking ring is sleeved with the shock absorption layer, the annular lamp panel is tightly arranged on the outer side of the shock absorption layer in a sleeving mode, the LED lamps on the annular lamp panel are not prone to being affected by striking and vibration of the drumstick, and the service life of the LED lamps is long.

1. The name of the design product: drum paper. 2. The use of the design product: the design product is used for loudspeaker drum paper. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The rubber hoop (6) comprises: a hit part (60) disposed on the upper surface of the head (5); a plurality of insertion sections (61a) which protrude further downward than the section to be struck (60); and a hook part (61b) formed so as to extend from the insertion part (61a). In a state in which the insertion part 61a is inserted into the plurality of mounting holes 51 of the head 5, the hooking part 61b is hooked on the lower surface of the head 5, so that a recess for hooking the rubber hoop 6 does not need to be formed in the hoop 7 as in the prior art, and the rubber hoop 6 can be mounted on the upper surface of the head 5. As a result, the thickness of the hoop 7 in the radial direction can be reduced, and the percussion instrument 100 can be reduced in size.

The present disclosure relates to an electronic African drum and a drum head manufacturing process. The electronic African drum comprises a drum body and a drum head, wherein the drum head is made of ETPU materials; the drum head is circular, and a flange and an extension part are arranged on the drum head; an adhesive layer is arranged on one side of the drum head; the drum body also comprises a cavity, in which a supporting component is arranged; the supporting component comprises a metal plate, a buffer and a bracket. The drum head significantly reduces peak instantaneous impact while preserving or approximating traditional tone and tactile feel; the center and edge areas of the drum head are differentiated by a flange structure to produce distinct sounds; the supporting component is abutted against the drum head, reducing deformation and slack during use.

This invention provides an electronic percussion instrument and a method for detecting the impact, which improves the accuracy of impact position detection. Multiple drumhead sensors (4) are arranged on a frame (3) facing the lower surface of the drumhead (6). In a region where the distance from the center of the striking surface (60a) of the drumhead (6) is more than 50% and less than 75% of the radius (R) of the striking surface (60a), the buffers (41) of the multiple drumhead sensors (4) contact the lower surface of the drumhead (6) (diaphragm 60). This makes the sensitivity distribution of the impact on the striking surface (60a) of the drumhead (6) more uniform and suppresses vibrations caused by the drumhead sensors (4) mistakenly detecting that the drum edge (7) has been struck. Therefore, the accuracy of impact position detection is improved.

A sound dampening drumhead made from canvas material. The canvas material is circumferentially stretched and connected to a circular flesh hoop. The sound dampening drumhead is operable to retrofit existing drum shells and reduce drumhead reverberation time and peak volume. Further, the drumhead maintains similar reactivity as traditional drumheads.

The utility model provides a magnetic vibration sorting disc, and belongs to the technical field of visual material taking. Comprising a drum, a material disc, an elastic drum leather located below the material disc and a magnetic force control structure located below the elastic drum leather, the magnetic force control structure comprises a limiting disc which is fixed to the drum and located below the elastic drum leather, a plurality of guide holes are longitudinally formed in the limiting disc, and a sliding block is longitudinally connected below the limiting disc in a sliding mode; permanent magnet columns in one-to-one correspondence with the guide holes are fixedly arranged on the sliding block, and a lifting piece capable of driving the sliding block to do longitudinal reciprocating motion is arranged between the sliding block and the drum; and a plurality of iron balls are arranged between the elastic drum leather and the charging tray. The vibrating device has the advantages of uniform vibration and the like.

The invention relates to a mute drum with double sound pick-ups. The mute drum comprises a shell, a mute drum head, a drum head vibration sensing structure, a buffer supporting structure, a drum head sound pick-up and a drum edge sound pick-up, the mute drum surface is mounted at the upper end of the shell, and the mute drum surface is arranged in a tensioning manner; the drumhead vibration sensing structure is connected with the mute drumhead through a flexible buffer structure and is used for sensing knocking vibration of the mute drumhead in a partitioned manner; the buffer supporting structure is arranged between the drumhead vibration sensing structure and the shell and is used for isolating a vibration conduction path between the drumhead vibration sensing structure and the shell; the drumhead pickup is arranged at the lower end of the drumhead vibration sensing structure; and the drum edge sound pick-up is arranged at the bottom of the shell. According to the scheme, a connecting path between the drum head vibration sensing structure and the shell can be changed into a non-rigid structure, isolation of drum head vibration and drum edge vibration is achieved, cross interference of vibration signals of different paths is effectively avoided, and the problem of crosstalk is fully avoided.

An air and sound conveying means is disclosed achieved by forming a hole 1 through a typical drumkit bass drum shell 2 to allow sound and a puff of air 11 to exit the bass drum toward a microphone 12 to retaining the sound and playability of a bass drum fitted with two full bass drum skins The beautification of said hole can be by an optional grommet 5 of corresponding diameter to said cut hole and can have an outer flange area 17 for the incorporation of instruction or logos to identify its use.

An electronic percussion instrument comprises a drumhead 2 mounted resiliently on a base 6 so as to be movable relative to the base. A plurality of sensors (such as optical or piezo 38 sensors) to det

1. Name of the product in this design: Main body of the drumhead. 2. Purpose of this design: The purpose of this design is to produce a sound when struck. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1. 5. Description of changing states: The reference image shows the storage state in which multiple drumheads of different sizes can be stacked together. 6. Other situations requiring explanation: The A-A sectional view is the sectional view along direction A in the top view; the dashed line area does not require protection.

To provide an elastic component for electronic drums that is highly uniform and precisely molded, a method for manufacturing an elastic component for electronic drums, and an electronic drum. [Solution] An elastic member for an electronic drum, provided between the drumhead and a sensor that detects vibrations of the drumhead, for transmitting vibrations of the drumhead to the sensor, having a single layer of polyurethane foam extending from one end on the drumhead side to the other end on the sensor side, wherein the shape of the cells of the polyurethane foam is substantially spherical.

1. The name of the design product: drum paper (fiber sheet pattern). 2. The use of the design product: the drum paper used in the sound loudspeaker. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses a drum-shaped rattle with a three-dimensional decorative structure, which comprises a drum ring, a handle and a drumstick are connected to the peripheral surface of the drum ring, drum openings are arranged at two ends of the drum ring, drum skins are mounted at the drum openings, and the drum skins are arranged in a transparent manner; the drum further comprises a decoration assembly, the decoration assembly comprises a plurality of decoration pieces arranged at intervals, decoration areas of hollow structures are arranged on the decoration pieces, a plurality of layered fastening blocks arranged around the decoration pieces are arranged on the inner circumferential wall of the drum ring, and fixing grooves matched with the edges of the decoration pieces in an inserted mode are formed in the layered fastening blocks. According to the utility model, the transparent drum leather design is adopted, so that the internal decoration assembly can be clearly visible through the drum leather, the visual stereoscopic impression is enhanced, and the overall aesthetic degree is improved; the decorative assembly is composed of a plurality of decorative sheets, a distinct-level three-dimensional effect can be formed, the overall structural design is ingenious, the transparent drum skin and the three-dimensional decorative assembly are additionally arranged on the basis that the basic structure of a traditional drum-shaped rattle is reserved, and the visual attractiveness of the drum-shaped rattle is greatly improved.

Drum heads including mechanochromic impact sensors are disclosed, along with other live-event memorabilia recording concepts. The sensors are based on core-shell vesicles having a core and a shell material layer at least party surrounding the core. The core includes crystalline polyacetylene. The shell material layer includes silk fibroin. The sensors provide impressively large dynamic range, thereby allowing quantitative measurement of blunt force impact across a new range of forces with a single sensor.

The utility model provides a single-face drum and a drum set. The single-face drum comprises a single-face drum body. A head; the drum pressing ring is used for pressing the drum leather on the top of the single-face drum main body, and the drum leather and the side wall of the single-face drum main body jointly surround to form a drum cavity; and the tightness adjusting device is used for adjusting the tightness among the single-sided drum main body, the drum leather and the drum pressing ring. The single-side drum comprises the single-side drum main body, the drum leather and the drum pressing ring, and the single-side drum main body, the drum leather and the drum pressing ring are locked through the tightness adjusting device, so that the drum pressing ring presses the drum leather on the top of the single-side drum main body to form the drum cavity, and a user can knock the drum leather through a knocking tool such as a wooden stick and the like. The drum pressing ring, the drum leather and the single-sided drum main body form integral resonance, and then required drum sound is emitted, the single-sided drum only comprises the drum leather at the top, the integral size and weight are greatly reduced, the structure is simple, the installation is convenient, the portability is greatly improved, and the single-sided drum is very suitable for being carried by people in a travel process.

This invention provides a noise-reducing musical instrument, comprising a drum plate, a drumhead, and a pressure plate. The bottom of the drum plate has a fixing ring for connecting a fixed support. The pressure plate and the drum plate are connected by a pressure plate fixing screw. The drumhead is clamped and fixed between the pressure plate and the drum plate. A sensor is fixed inside the drum plate below the drumhead to sense the vibration of the drumhead. The invention is characterized by an extended support rod circumferentially arranged on the drum plate. Elastic buffer connectors and lower pressure members are respectively provided on the drum plate and the pressure plate to float and clamp the support rod from both sides. By floating and clamping the support rod from both sides using the elastic buffer connectors and lower pressure members, energy is absorbed, reducing the transmission of impact force to the drum plate and pressure plate, reducing resonance, and lowering noise. This invention has good development prospects.