Abstract: A foldable stand has a base, a riser, and a switching mechanism. The riser is located on the base. The switching mechanism connects the base and the riser such that the riser selectively pivots relative to the base from an upright position to a folded position. The switching mechanism has a locked status and a released status. In the locked status, the switching mechanism prevents the riser from pivoting relative to the base. In the released status, the switching mechanism allows the riser to pivot relative to the base from an upright position to a folded position. The switching mechanism is configured to be switched from the locked status to the released status by rotation of the riser around a centerline of the riser.

Abstract: A stand adjustment device has a tripod-connecting member, a connecting seat, two clamping plates, a boom-connecting tube, a locking shaft, and a manual operating member. The connecting seat is rotatably located around the tripod-connecting member. The two clamping plates are detachably attached to two opposite sides of the connecting seat respectively. One end of the locking shaft is movably disposed in the boom-connecting tube. The boom is slidably mounted through the boom-connecting tube and the locking shaft. The locking shaft is slidably mounted through the boom-connecting tube, the two clamping plates, and the connecting seat such that the boom-connecting tube is rotatable relative to the connecting seat. The manual operating member and the locking shaft are configured to clamp the boom-connecting tube, the two clamping plates, and the connecting seat therebetween into a locked condition.

Abstract: A multi-functional and extendable mounting stand has a clamp and an extending assembly including at least one coupling joint and at least one extending rod arranged alternately and connected sequentially. Each coupling joint has a first connecting seat, a mounting seat mounted on the first connecting seat, a second connecting seat mounted through the first connecting seat and the mounting seat, and a knob connected to the second connecting seat. At least one ends of the extending rod is connected to at least one ends of the at least one coupling joint. The clamp is connected to one end of the extending assembly. A holder, a lighting apparatus or a recording apparatus is connected to the extending assembly and can be adjusted to a height and an angular position that allow a user to use the holder in a comfortable pose or to the best recoding or lighting position.

Abstract: A saxophone has a body tube, a high-F #structure, and a side-Bb structure. The body tube has a high-F #tone hole and a side-Bb hole. The high-F #structure opens or closes the high-F #tone hole. The side-Bb structure has a side-Bb tone-hole cover, a side-Bb driving assembly, an auxiliary key, and a main key. The main key is separated from the auxiliary key. The auxiliary key is disposed above a high F #key of the high-F #structure along a vertical line. The auxiliary key and the main key are separately arranged around a centerline of the body tube. The auxiliary key and the main key correspond in height position. Both of the auxiliary key and the main key are connected to the side-Bb driving assembly and drive the side-Bb tone-hole cover to close or open the side-Bb tone hole.

Abstract: A strike pad includes a strike layer, a magnet layer, a metal soft sheet, and a base. The magnet layer is provided on a bottom of the strike layer, the metal soft sheet is provided on a top of the base, and then a magnet layer the bottom is magnetically attached to the top of a metal soft sheet. In the above technical solution, a magnet layer is set on the bottom of a strike layer, and a metal soft sheet is set on the top of a base. The user first puts a base on a fixed surface, and then holds a strike layer, facing the magnet layer to a metal. The soft sheet makes the magnet layer adsorb on a metal soft sheet to realize the assembly between the strike layer and a fixing seat; when disassembling, the magnet layer and the metal soft sheet can be separated.

Abstract: A cable-driven beater mechanism for a percussion instrument has a base, a transmission shaft pivotally mounted on the base, a beater connected to the transmission shaft, a cable transmission assembly, a restoring spring and a cable. An elongated guiding slot is formed in the standing plate. The cable transmission assembly is pivotally mounted on the base and protrudes into the guiding slot. The cable and the transmission shaft are connected via the cable transmission assembly. Pulling force from a player is transferred via the cable to pivot the transmission shaft and the beater. The restoring spring returns the transmission shaft and the beater to an original position. The cable moves along a straight line during operation to reduce rubbing and repeated bending of the cable, which prolongs service life of the cable, reduces noise during operation, and allows the beater to respond more swiftly to the pulling force.

Abstract: A drum pedal has a base, a pivoting assembly, a rotating element, a beater holder assembly, a chain assembly, and a foot board. The pivoting assembly is mounted in the base. The rotating element, the beater holder assembly and the chain assembly are mounted in the pivoting assembly. The foot board is mounted between the chain assembly and the base. The base has a resilient element mounted concentric with a shaft of the pivoting assembly. A rotating element receives the resilient element. A torque of the resilient element is evenly matched with a swing caused by the beater holder and the chain assembly. Therefore, the beater holder and the chain assembly return to the original position immediately after the swing. Two drum pedals are manipulated to play respectively, and are connected by a coupling assembly to compose a drum pedal unit.

Abstract: A drum pedal has a base, a pivoting assembly, a rotating element, a beater holder assembly, a chain assembly, and a foot board. The pivoting assembly is mounted in the base. The rotating element, the beater holder assembly and the chain assembly are mounted in the pivoting assembly. The foot board is mounted between the chain assembly and the base. The base has a resilient element mounted concentric with a shaft of the pivoting assembly. A rotating element receives the resilient element. A torque of the resilient element is evenly matched with a swing caused by the beater holder and the chain assembly. Therefore, the beater holder and the chain assembly return to the original position immediately after the swing. Two drum pedals are manipulated to play respectively, and are connected by a coupling assembly to compose a drum pedal unit.

Abstract: An automatic locking guitar holding rack comprises a brace arm, a first movable lock device and a second movable lock device separated from the first movable lock device. The first movable lock device has a first movement portion located on the first holding section, and the second movable lock device has a second movement portion on the second holding section. The first and second movement portions are separated. The first movable lock device is depressible by the head of a guitar to move a first actuation member in a first compression displacement to drive a first confining member to proceed a first swivel displacement. The second movable lock device is depressible by the head of the guitar to move a second actuation member in a second compression displacement to drive a second confining member to proceed a second swivel displacement.

Abstract: An automatic locking guitar holding rack comprises a brace arm, a first movable lock device and a second movable lock device separated from the first movable lock device. The first movable lock device has a first movement portion located on the first holding section, and the second movable lock device has a second movement portion on the second holding section. The first and second movement portions are separated. The first movable lock device is depressible by the head of a guitar to move a first actuation member in a first compression displacement to drive a first confining member to proceed a first swivel displacement. The second movable lock device is depressible by the head of the guitar to move a second actuation member in a second compression displacement to drive a second confining member to proceed a second swivel displacement.

Abstract: A guitar holding rack with an adjustable interval comprises a first brace arm, a second brace arm corresponding to the first brace arm and an interval adjustment unit hinged between the two brace arms. The first and second brace arms have respectively a holding sections spaced from each other to form a holding space to hold the neck of a guitar and to be leaned by the guitar, and an extension section connected to the holding section and spaced from each other by an adjustment gap. The interval adjustment unit is hinged in the adjustment gap and bridges the two extension sections, and also has a first adjustment displacement in which the two holding sections are driven by extension sections inwards toward the holding space and a second adjustment displacement in which the two holding sections are driven by the extension sections outwards from the holding space.

Abstract: A key cup adjustment device for a wind instrument has a hinge rod and a key cup assembly. The key cup assembly is mounted on the hinge rod and has at least one solid arm, a key cup, at least one adjusting arm and at least one abutting unit. The at least one solid arm is mounted securely between the hinge rod and the key cup. The at least one adjusting arm is mounted securely on the at least one solid arm and corresponds to the key cup. The at least one abutting unit is connected to the at least one adjusting arm and can be adjusted to abut the key cup. Therefore, the key cup can close a corresponding tone hole tightly and pitches produced by wind instruments are accurate.

Abstract: A key cup adjustment device for a wind instrument has a hinge rod and a key cup assembly. The key cup assembly is mounted on the hinge rod and has at least one solid arm, a key cup, at least one adjusting arm and at least one abutting unit. The at least one solid arm is mounted securely between the hinge rod and the key cup. The at least one adjusting arm is mounted securely on the at least one solid arm and corresponds to the key cup. The at least one abutting unit is connected to the at least one adjusting arm and can be adjusted to abut the key cup. Therefore, the key cup can close a corresponding tone hole tightly and pitches produced by wind instruments are accurate.

Abstract: A telescopic tube having an outer tube, an adjustable tube, a housing and a locking clamp. The outer tube has a top end. The adjustable tube is mounted slidably in the top end of the outer tube and has multiple locking notches. The housing is attached to the top end of the outer tube, is mounted slidably around the adjustable tube and has a central top hole, a front opening and an inner surface. The locking clamp is mounted movably in the housing and has an elongated through hole, a rear inner surface, a spring and a locking rod. The spring is mounted between the housing and the locking clamp. The locking rod is formed on and protrudes in from the rear inner surface of the elongated through hole and selectively engages a locking notch in the adjustable tube to hold the adjustable tube in place.

Abstract: A xylophone has a frame, multiple spacers, multiple bars, multiple sleeves and multiple fasteners. The frame has two panels and multiple supports. Each support is attached between the two panels and has a top surface and a trough. The trough is longitudinally formed in the top surface of the support. The spacer is mounted in the trough of the support and has multiple protruding mounts. Each bar is mounted between two supports and has two through holes. The sleeves are respectively mounted through the through holes of the bars. Each fastener is mounted through the sleeves and in the protruding mounts of the spacers to fasten the bars on the supports of the frame. Therefore, the spacers are not moved during production for improved production consistency.

Abstract: A fixture adapted to be mounted on a stand for supporting a guitar includes a seat having two compartments, two moving blocks respectively and pivotally received in the two compartments and a resilient member received in the seat to provide recovery force to the two moving blocks after the two moving blocks are pivoted, a cap having two arcuate slots to respectively communicate with the two compartments and two arms to securely connect to a corresponding one of the two moving blocks such that when the arms are moved closer to each other to securely clamp the guitar due to limitation of the two arcuate slots and a weight of the guitar, the two moving blocks are pivoted accordingly and the recovery force from the resilient member is able to push the two moving blocks as well as the two arms back to their original positions.

Abstract: A beater for a bass drum includes a head having an adjustment hole, a shaft rotatably mounted in the head above the adjustment hole, and a stem fixedly connected to the shaft and extended out of the adjustment hole for connection to the pedal drive of a bass drum, wherein the stem can be turned in the adjustment hole within a limited angle to change the contained angle between the head and the stem so that the face of the head can positively fit the head of the bass drum.

Abstract: A snap-fastening structure of a drum comprises a fixing socket disposed laterally on a surface of a drum shell, a drum clasp snap-fastened at a counterhoop, and a link bolt penetrating the drum clasp to join the fixing socket. The drum clasp is a clamp body having a clamp-fastening portion extended downward and folded inward to form a clamping which provides, a firm retention of the drum clasp at the counterhoop and a buffer space for reducing influences to vibration of the batter head for thickening and solidifying the timbre of drumbeats.