Abstract: A tripod has a central post, a primary post lock, a secondary post lock, three legs and three extension arms. The central post has an upper end and a lower end. The primary and secondary post locks are selectively mounted around the central post. The legs are pivotally attached to the primary post lock. The extension arms are pivotally attached to the legs and the secondary post lock. The tripod can be configured with the secondary post lock at the lower end of the central post to form a standing tripod or the primary post at the lower end of the central post for form a level tripod or a standing tripod.

Abstract: A locking device for a telescopic tube assembly having an outer tube and an inner tube slidably received in the outer tube includes a securing ring securable inside the inner tube, a friction element adapted to be securely mounted on one distal end of the inner tube and having legs deformably extending out and a wedge adapted to be selectively and movably received inside the outer tube to force the legs to extend toward an inner periphery of the outer tube so as to increase friction between the legs and the outer tube. Thus movement of the inner tube in the outer tube is selectively controlled.

Abstract: An extension connector has a threaded end formed on a first end of the extension connector for connection with a threaded hole of a receptacle and a threaded hole adapted for connection with a threaded end of a ball linkage such that an angle adjustable cymbal stand is able to extend to any position for connection with a cymbal.

Abstract: An angle adjusting device for a paddle of a cymbal stand includes a pivoting block adapted to be pivotally connected between the two arms of the bracket and connected to the transmission rod, and an adjusting bracket movably connected to the pivoting block and adapted to connect to a distal end of the paddle such that the movement of the adjusting bracket changes an angle of the paddle.

Abstract: A fixture adapted to combine with a paddle assembly includes a pair of rods threadingly extendable into opposite sides of the first distal end of the base, a pair of ribs adapted to be formed on opposite sides of the base, a pair of guiding grooves adapted to be oppositely defined in a bottom portion of the bracket of the drum stand to correspond to and receive therein the pair of ribs and a pair of notches adapted to be oppositely defined in a mediate portion of the bracket of the drum stand to correspond to and receive therein the pair of rods.

Abstract: A chair includes a seat, two legs, two transverse bars, a first cross bar securely and firmly formed on one of the two legs and sandwiched between the two transverse bars and a second cross bar securely and firmly formed on the other one of the two legs and sandwiched between the two transverse bars. The second cross bar has two securing blocks extending out of two distal ends of the second cross bar and into corresponding two securing holes defined in the inner side faces of the two transverse bars so as to secure position of the second cross bar relative to the seat, the two securing blocks being selectively retracted inside the second cross bar and having escaped the corresponding securing holes. The chair height is able to be adjusted by moving the second cross bar to different securing holes.

Abstract: A recovery force adjusting device for a cymbal stand includes a handle, a driving ring movable relative to the column and having a pin extending through the stop, a supporting seat having a cutout and a wedge the supporting seat, a rotating sleeve rotatably and movably sandwiched between the supporting seat and the driving seat and having a first, a second and a third sets of teeth formed on the rotating sleeve and a recovery spring to move the rotating sleeve upward. Due to the misalignment relationship between the wedge and the tooth of the first set of teeth, sliding movement of the wedge along a slope of the corresponding tooth of the first set of teeth forces the rotating sleeve to rotate and thus the position of the driving ring is changed. A compression force to the spring is thus adjusted.

Abstract: A retaining device includes a top clamping seat having arms divergently extending out of the top clamping seat and each arm provided with a claw adjustably connected to the arm, a bottom seat having linkages pivotally extending upward to pivotally connect to mediate portions of the arms, and an adjusting ring adapted to be threadingly connected to the drum stand to abut a side face of the bottom seat to cause the bottom seat to move. Movement of the bottom seat is able to initiate movement of the top clamping seat and thus the claws are able to clamp a drum seated on the drum stand and the adjustability of the claws relative to the arms allows the retaining device to clamp drums of different sizes.

Abstract: The fast-acting clamp for a musical instrument is selectively attached to an extending support and has a bracket, a connector, a threaded rod and a positioning assembly. The bracket is U-shaped. The connector is attached to the bracket. The threaded rod extends through the bracket. The positioning assembly has a base, a primary retainer, a secondary retainer and two springs. The base is attached to the bracket. The primary retainer is mounted pivotally on the base and has a tab, a semicircular notch and two edges. The secondary retainer is mounted pivotally on the base and has a semicircular notch and two edges. The springs connect to the base and the retainers to press the retainers inward. The tab is pressed to release the threaded rod so the fast-acting clamp can be quickly attached to or released from an extending support.

Abstract: A keyboard instrument support has a driving device to control upward and downward movement of inner tubes relative to the outer tubes and a ratchet device to retain the elevation of the inner tubes. The ratchet device is composed of a ratchet alternatively rotated by the driving device and a leverage to abut a ratchet tooth such that after the inner tubes are elevated by the driving device, the abutment of the leverage to the ratchet retains the elevation of the inner tubes.

Abstract: A chair includes a seat, two legs, two transverse bars, a first cross bar securely and firmly formed on one of the two legs and sandwiched between the two transverse bars and a second cross bar securely and firmly formed on the other one of the two legs and sandwiched between the two transverse bars. The second cross bar has two securing blocks extending out of two distal ends of the second cross bar and into corresponding two securing holes defined in the inner side faces of the two transverse bars so as to secure position of the second cross bar relative to the seat, the two securing blocks being selectively retracted inside the second cross bar and having escaped the corresponding securing holes. The chair height is able to be adjusted by moving the second cross bar to different securing holes.

Abstract: A fast release cymbal clamp includes a top pressing member with an extension extending into the assembly block and a handle pivotally connected to the assembly block such that the pivotal movement of the handle is able to force the auxiliary abutting fitting and the C-shaped clamp to engage with the outer periphery of the extension so that the cymbal extended by the extension is securely sandwiched between the upper abutting element and the lower abutting element after the handle is pivoted to engage the auxiliary abutting fitting.

Abstract: An adjustable device includes a first disk mounted on a side of the first stand to have a finger hole to movably receive therein a finger, a second disk mounted on a side of the second stand to combine the first disk and having multiple adjusting holes defined in a peripheral edge of the second disk to allow an extension of the finger and a sliding plate sandwiched between the first disk and the second disk and movable between a first position where a free end of the finger is detachably engaged with a free end of the sliding plate and a second position where the free end of the finger is separated from the sliding plate and is received in a very last adjusting hole of the second disk, in which a relative angle between the first stand and the second stand is maximum.

Abstract: A recovery force adjusting device for a cymbal stand includes a handle, a driving ring movable relative to the column and having a pin extending through the stop, a supporting seat having a cutout and a wedge the supporting seat, a rotating sleeve rotatably and movably sandwiched between the supporting seat and the driving seat and having a first, a second and a third sets of teeth formed on the rotating sleeve and a recovery spring to move the rotating sleeve upward. Due to the misalignment relationship between the wedge and the tooth of the first set of teeth, sliding movement of the wedge along a slope of the corresponding tooth of the first set of teeth forces the rotating sleeve to rotate and thus the position of the driving ring is changed. A compression force to the spring is thus adjusted.

Abstract: An extension connector has a threaded end formed on a first end of the extension connector for connection with a threaded hole of a receptacle and a threaded hole adapted for connection with a threaded end of a ball linkage such that an angle adjustable cymbal stand is able to extend to any position for connection with a cymbal.

Abstract: An adjustable device includes a first disk mounted on a side of the first stand to have a finger hole to movably receive therein a finger, a second disk mounted on a side of the second stand to combine the first disk and having multiple adjusting holes defined in a peripheral edge of the second disk to allow an extension of the finger and a sliding plate sandwiched between the first disk and the second disk and movable between a first position where a free end of the finger is detachably engaged with a free end of the sliding plate and a second position where the free end of the finger is separated from the sliding plate and is received in a very last adjusting hole of the second disk, in which a relative angle between the first stand and the second stand is maximum.

Abstract: A locking device for a telescopic tube assembly having an outer tube and an inner tube slidably received in the outer tube includes a securing ring securable inside the inner tube, a friction element adapted to be securely mounted on one distal end of the inner tube and having legs deformably extending out and a wedge adapted to be selectively and movably received inside the outer tube to force the legs to extend toward an inner periphery of the outer tube so as to increase friction between the legs and the outer tube. Thus movement of the inner tube in the outer tube is selectively controlled.

Abstract: A shockproof microphone support device has a retaining base for retaining on a support rod, a supporting base secured on the retaining base, and a holder assembled on the supporting base by a shockproof strip for receiving a microphone. When the support rod receives a vibration or shock, the vibration passes through the retaining base and the supporting base to the shockproof strip, and then is absorbed by the shockproof strip, whereby potential undesirable noises generating from the microphone are effectively avoided.

Abstract: A locking device has an enclosure partially securely mounted on a peripheral edge of the outer tube and having a lever pivotally connected to the enclosure; and a positioning rod securely connected to a side of the lever to be driven by the lever and having a head formed on a free end of the positioning rod to correspond to one of the adjusting recesses of the inner tube such that pivotal movement of the lever is able to drive the head of the positioning rod to selectively move away from the corresponding adjusting recess to allow the inner tube to move relative to the outer tube.

Abstract: A positioning foot for an instrument stand having legs extending out of the instrument stand, has pads adapted to be respectively mounted on a corresponding free end of the legs, each pad having a through hole defined through the pad and a groove defined in a side face of the pad, and spikes each pivotally received in a corresponding one of the grooves of the pads to be alternatively extended out to engage with a surface to provide a firm grip to the instrument stand.