In a drum in which a drum head installed on one or both of open ends of a trunk main body that constitutes a drum main body of the drum is tightened by lug bolts and stretched by a hoop, reinforcing rings are provided in anchoring holes that are formed in the hoop for receiving bolt heads of the lug bolts.

A drum cart (1) is provided for mounting and moving a drum (2). The cart included, a stand (3) mounted on two wheels (5). The stand is connected to the drummer by a hip strap. The drum (2) is held around its shell (7) by at least one bracket (6) and is preferably connected to the bracket (6) by two joints (8. The bracket (6) is preferably fastened to the stand (3). The drum is arranged in the stand so that the drummer beats the drum head (14) vertically with both beaters (10).

This invention is related with a drum (1) in washing/drying machines, preferably in front loading in washing machines, rotating with a motor around its central axis inside a tub, manufactured of non-metal a material such as made of plastics, comprising one or more plates (3) manufactured separate from that drum (1), to cover the manufacturing faults such as flash at the edges of drum perforations (2) so as to prevent harm to laundries.

A drum has a shell, a pair of batter heads disposed on two sides of the shell, a pair of collars enclosing the batter heads and surrounding the shell, a pair of positioning hoops surrounding the collars, a large number of connection seats disposed on the shell, a large number of positioning mounts disposed on the positioning hoops, and a large number of positioning fasteners fastening the connection seats and the positioning mounts together. Each of the positioning hoops has an inner curved flan...

A drum main body comprising first, second and third drum body elements of cylindrical shape arranged in axial direction thereof. The third drum body element is interposed between the first and second drum body elements and is connected to rims of the first and second drum body elements by fastening bolts. The first, second and third drum body elements that are arranged in an axial direction thereof can be different from each other in materials and/or structure (depth).

A drum body made of bamboo. A joined board is obtained by joining a plurality of rectangular bamboo elements, which are cut out of bamboo stem, so that the top surfaces and undersurfaces of these bamboo elements are alternately inverted. A laminated board is manufactured by stacking and bonding a plurality of these joined boards, and this laminated board is rolled into a cylindrical shape so as to form the drum body with its both ends opened.

A drum having hidden, drum head tensioning features. The drum features a drum head assembly being positioned within a drum body. The drum head assembly includes a mounting frame having a mounting ring being loosely fitted within the drum body. A number of mounting brackets are affixed at spaced apart locations to the interior of the mounting ring. A number of first threaded fasteners are threadably engaged with the mounting ring and extend radially outward therefrom so as to selectively press ag...

The present invention is related to a drum (1), used in washing machines, preferably laundry machines, into which laundry to be washed is to be placed, capable of performing washing by rotational movement around its central axis, preferably made of plastic, comprising a main body (2) and a rear cover (3), whereby said rear cover (3) comprises a circular edge (10) which surrounds the main body (2) and the main body (2) comprises an edge socket (14) in which the rear cover edge is located, the mai...

An improved drum includes a substantially cylindrical drum shell having a drum head and containing a mechanical voice system including strings, and a mechanical tuning system for adjusting tension of the drum head and the strings, and a spring housing serving as a base of the drum and containing shock absorbers, base extensions for stability, and pedals for mechanical note changes.

The invention relates to drum containers provided with one or more rolling hoops. The drum has a continuous vertical side wall provided with one or more reinforced portions. Each of the reinforced portions is provided with an outwardly convex rolling hoop located between a pair of inwardly concave annular grooves formed in the side wall of the drum. The vertical dimensions of the grooves are at least twice the size of the grooves' depth, while the vertical dimension of the rolling hoop is at lea...