Abstract: A snare adjustment device includes a snare protection frame having snares connected thereto, a holding body, a slider slidably connected to the holding body and moving the snare protection frame and the snares along with it, a switch member, and a manual lever. The switch member includes a latch section movable by a push section to engage with or disengage from the slider, such that the slider is stopped from or allowed to move, respectively. The manual lever is pivotally connected to the holding body and can be swung up and down for moving the slider. The manual lever includes a lever section, which and the push section of the switch member are protruded beyond a reference side of the holding body. Therefore, a drum player can hit the push and the lever section with a drum stick to quickly switch the snares between a tightened and a loosened state.

Abstract: A strainer assembly is provided for a snare drum having a shell and a bottom drumhead. The strainer assembly comprises a plurality of snare wires, a frame, a control mechanism, and a throw-off mechanism. Both ends of the snare wires are connected to the frame. The control mechanism includes a slidable part connected to a first end of the frame and a first button for controlling the vertical movement of the slidable part. The throw-off mechanism includes a slidable lower part connected to a second end of the frame and a second button for controlling the vertical movement of the slidable lower part.

Abstract: The present invention provides a drum with a lug mechanism, which can adjust the tension of a drumhead mounted on the drum. The lug mechanism can also prevent loosening of a tension-adjusting member of the lug mechanism and enhance resonance of the drum.

Abstract: A supporting leg to support a drum includes a first rod, a second rod, and a third rod. A first angle-adjusting mechanism is provided between the first rod and the second rod to adjust a first angle between the first rod and the second rod. A second angle-adjusting mechanism is provided between the second rod and the third rod to adjust a second angle between the second rod and the third rod. The output sound of the drum can be adjusted by changing the first angle and the second angle.

Abstract: A multi-purpose drum that can be assembled into a floor-tom, a bass drum, or a gong bass drum through different mating parts according to the performance requirements. This multi-purpose drum is lightweight, easy to carry, and quick to assemble.

Abstract: A portable guitar stand has two stand racks, two supporting racks and two holding racks. The stand racks are pivotally connected to each other. The supporting racks are respectively and pivotally connected to the stand racks. The holding racks are respectively and pivotally connected to the stand racks. The holding rack and the supporting rack are pivotally connected to different sides of the corresponding stand rack. When the guitar stand is folded, the stand racks, the supporting racks and the holding racks are parallel to each other. When expanded, the supporting racks and the holding racks, which extend toward different sides, may firmly support the guitar on the guitar stand. When folded, the stand racks, the supporting racks and the holding racks are parallel to each other, thereby lowering the volume of the guitar stand for ease of transportation and storage.

Abstract: A bore-variable leadpipe includes a mouthpiece receiver integrally formed on a tube body of a brass instrument and a mouthpiece adaptor detachably assembled to the mouthpiece receiver. The mouthpiece receiver internally defines a first bore, in which an assembling section, a tapered section and an air-guiding section are sequentially formed. The mouthpiece adaptor has a receiving end for receiving a mouthpiece therein and an assembling end for engaging with the assembling section, and internally defines a second bore between the two ends. When the mouthpiece adaptor is assembled to the mouthpiece receiver, the second and the first bore are aligned and communicable with each other to form a conical passage and a cylindrical passage. The leadpipe can be changed in its bore size by assembling a mouthpiece adaptor of a different bore size to the mouthpiece receiver, so that the same brass instrument can be used with differently sized mouthpieces.

Abstract: A bore-variable leadpipe includes a mouthpiece receiver integrally formed on a tube body of a brass instrument and a mouthpiece adaptor detachably assembled to the mouthpiece receiver. The mouthpiece receiver internally defines a first bore, in which an assembling section, a tapered section and an air-guiding section are sequentially formed. The mouthpiece adaptor has a receiving end for receiving a mouthpiece therein and an assembling end for engaging with the assembling section, and internally defines a second bore between the two ends. When the mouthpiece adaptor is assembled to the mouthpiece receiver, the second and the first bore are aligned and communicable with each other to form a conical passage and a cylindrical passage. The leadpipe can be changed in its bore size by assembling a mouthpiece adaptor of a different bore size to the mouthpiece receiver, so that the same brass instrument can be used with differently sized mouthpieces.

Abstract: A musical drum includes a hollow cylindrical shell; a drumhead tightly stretched over and sealing each end of the shell, so as to form a resonance chamber between the drumheads and the shell; and two counterhoops fixed around the two drumheads to hold them on the shell. The shell is provided on at least one end with a flat contact surface for horizontally contacting with the drumhead. The flat contact surface has a radially outer edge forming a curved surface downward extended to an outer circumferential surface of the shell, and a radially inner edge forming a bevel downward extended to an inner circumferential surface of the shell. With the flat contact surface and the curved surface, the drumheads can be more tightly attached to the shell, allowing the vibration of the drumheads to be efficiently transmitted to the shell to produce more saturated resonant frequency and good sound sustainability.

Abstract: A steplessly adjustable cymbal locating device includes a housing having a first receiving space and a notch; a rotating mechanism having a second receiving space and being clamped in the first receiving space with the housing vertically rotatable relative to the rotating mechanism; a rotating pole partially clamped in the second receiving space with the rotating mechanism horizontally rotatable relative thereto; a fixed pole fixedly assembled to one side of the housing; and an adjustable locking subassembly extended into the housing and the rotating mechanism for selectively pressing the housing, the rotating mechanism and the rotating pole against one another to an immovably state or loosening them from one another to allow stepless adjustment of the locating device in two axis directions. Thus, a cymbal mounted on either the rotating or the fixed pole can be adjusted to any horizontal orientation and vertical angle according to a user's need.

Abstract: A steplessly adjustable cymbal locating device includes a housing having a first receiving space and a notch; a rotating mechanism having a second receiving space and being clamped in the first receiving space with the housing vertically rotatable relative to the rotating mechanism; a rotating pole partially clamped in the second receiving space with the rotating mechanism horizontally rotatable relative thereto; a fixed pole fixedly assembled to one side of the housing; and an adjustable locking subassembly extended into the housing and the rotating mechanism for selectively pressing the housing, the rotating mechanism and the rotating pole against one another to an immovably state or loosening them from one another to allow stepless adjustment of the locating device in two axis directions. Thus, a cymbal mounted on either the rotating or the fixed pole can be adjusted to any horizontal orientation and vertical angle according to a user's need.

Abstract: A quick-release cymbal felt locating device includes a base internally defining a cavity having a front opening, and provided with a first insert hole vertically extended through the cavity and a second insert hole horizontally extended through the cavity; a movable clamping element extending into the cavity via the front opening thereof, and provided with a first communicating hole corresponding to the first insert hole and a second communicating hole corresponding to the second insert hole; and a safety pin transversely extended through the second insert hole and the second communicating hole for restricting or allowing displacement of the movable clamping element relative to the safety pin and the cavity. The first communicating hole and the first insert hole together form a clamping mechanism, with which a user can quickly assemble or disassemble the quick-release cymbal felt locating device to or from a cymbal pole.

Abstract: A quick-release cymbal felt locating device includes a base internally defining a cavity having a front opening, and provided with a first insert hole vertically extended through the cavity and a second insert hole horizontally extended through the cavity; a movable clamping element extending into the cavity via the front opening thereof, and provided with a first communicating hole corresponding to the first insert hole and a second communicating hole corresponding to the second insert hole; and a safety pin transversely extended through the second insert hole and the second communicating hole for restricting or allowing displacement of the movable clamping element relative to the safety pin and the cavity. The first communicating hole and the first insert hole together form a clamping mechanism, with which a user can quickly assemble or disassemble the quick-release cymbal felt locating device to or from a cymbal pole.

Abstract: A cymbal rod adjusting and locating mechanism includes a fixed casing having a pivot hole and a connector connected to a cymbal stand pole; and a movable casing including first and second clamping members for clamping a cymbal rod therebetween. The first clamping member is provided on a surface adjoining the second clamping member with a confining zone having a screw hole, and the second clamping member is correspondingly provided on a surface adjoining the first clamping member with a clamping zone having a through hole. The first and second clamping members are engaged with each other via a guiding mechanism provided between them, and are elastically pushed apart by first elastic elements provided between them. By extending a pressing bolt through the pivot hole and the through hole to screw into the screw hole, the fixed casing and the first and second clamping members are pressed against one another.

Abstract: A slidable wind instrument brace has an adjusting ring, a first abutting block and a second abutting block. The first abutting block and the second abutting block are respectively mounted on two ends of the adjusting ring. The adjusting ring is rotated to drive the first abutting block and the second abutting block to move close to or away from each other. Therefore, a position of the brace is changeable and a wind instrument with the brace can produce different timbres.

Abstract: A musical instrument pedal has a base, two supporting posts, a pedal plate, a shaft, an elevation-angle-adjusting assembly, a chain assembly and two beaters. The pedal plate is mounted pivotally on the base. The shaft is mounted rotatably between the supporting posts. The elevation-angle-adjusting assembly is mounted on the shaft and selectively changes an angle thereof relative to the shaft. The chain assembly connects the pedal plate to the shaft. The beaters are mounted on the shaft. The elevation-angle-adjusting assembly allows users to quickly change an elevation angle of the pedal plate.

Abstract: A pedal has a base, two supporting posts, a pedal plate, a first shaft, a second shaft, a chain assembly and two beaters. The pedal plate is mounted pivotally on the base. The first and second shafts are rotatably mounted respectively on the supporting posts, are connected concentrically together and are capable of rotating independently. The chain assembly connects the pedal plate to the first shaft. The beaters are mounted respectively on the first and second shafts. The concentrically connected first and second shafts serve as a crossbeam between the supporting posts to reinforce the structurally strength of the pedal and obviate additional crossbeams that limit the pivoting range of the pedal.

Abstract: A resilient device for a drum pedal has a resilient member, an upper driven fastener, a lower driven fastener, a stationary fastener, an upper bearing, a connecting fastener and a lower bearing. The resilient member is connected between the upper and lower driven fasteners. The stationary fastener is connected pivotally to the upper driven fastener. The upper bearing is clamped between the stationary fastener and the upper driven fastener. The connecting fastener is connected pivotally to the lower driven fastener. The lower bearing is clamped between the connecting fastener and the lower driven fastener. The upper and lower bearings provide a reduction in friction between the elements so stepping on the pedal is easier and smoother and gives greater control.