Abstract: A bearing device for a pedal assembly includes an integrally formed positioning block, a connecting block and a bearing. The connecting block has a connecting hole aligning with a second threaded hole of the positioning block, a second cutout defined in a top side of the connecting block to communicate with a first cutout of the positioning block and an engagement hole defined in a lower portion thereof for engagement with a recoil spring of the pedal assembly. A bearing is securely received in the first cutout and the second cutout. A first threaded bolt is extending through the aligned first threaded hole and the through hole for secure engagement of the bearing inside the positioning block. A second threaded bolt is extending into the aligned connecting hole and the second threaded hole to secure engagement between the positioning block and the connecting block.

Abstract: A supporting stand includes a base, a connection joint having a connection hole, a supporting rod connected to the connection joint, a compressible spring mounted on a free end of the supporting rod and a conical covering movably mounted on top of the supporting rod to sandwich the compressible spring therebetween such that the conical covering is able to adapt to and extend into musical instrument of different dimensions.

Abstract: A holding device for a musical instrument stand has a lower retainer, a turning retainer, an upper retainer, a pivotal pin, a first screw member and a second screw member, and provide a capability of adjustable in length and at angle and retractable to the musical instrument stand.

Abstract: A timpani with a foldable leg assembly has a timpani frame with a bottom, two legs and a bracket assembly. The legs and the bracket assembly are pivotally attached separated from each other to the bottom of the timpani frame. When the timpani needs to be stored or transported, the legs and the bracket assembly can be fold to reduce the overall volume of the timpani and easily transport or store timpani.

Abstract: A device for connecting two drum pedals of a drum includes an outer tube, an inner rod and a resilient strip. The outer tube defines therein an axial hexagonal (tetragonal) hole. A first end of the outer tube forms a recess on a periphery thereof having a plurality of screw holes and a through hole defined from a circumference of the outer tube to the outer surface of the recess. The inner rod is received in the hexagonal hole of the outer tube and defines a cutout in an appropriate position of a circumference thereof. The resilient strip is received in the recess of the outer tube and abuts the inner rod. A first end of the resilient strip has a protrusion integrally extending from one end thereof to be received in the through hole of the outer tube and a second end of the resilient strip is retained by the cutout of the inner rod. With this arrangement, the device for connecting two drum pedals can prevent damage to the inner rod and separation from the outer tube.