US 9,040,796 B2Granted

Drum

AssigneeRoland Corporation

InventorKiyoshi Yoshino

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Abstract

A drum includes a fixing means for fixing an edge portion of the membrane member; an interval forming means for forming an interval between the edge portion, fixed by the fixing means, and the striking surface of the membrane member in a normal direction of a plane of the striking surface; and contact members in contact with a connection portion of the membrane member, which connects the edge portion and the striking surface. The contact members contact the connection portion respectively at different positions along a circumferential direction of the connection portion. The contact members are in contact with an inner side of the tension ring and are displaced toward a center of the striking surface as the diameter of the circle surrounded by the tension ring is reduced.

Claims20

Dependent claims

A drum adapted to apply tension to a membrane member, used for forming a striking surface, by reducing a diameter of a circle surrounded by a tension ring that is disposed along an outer circumference of the drum, the drum comprising:

a fixing means fixing an edge portion of the membrane member;
an interval forming means forming an interval between the edge portion, fixed by the fixing means, and the striking surface of the membrane member in a normal direction of a plane of the striking surface;
and
a plurality of contact members in contact with a connection portion of the membrane member, which connects the edge portion and the striking surface,
wherein the plurality of contact members is disposed to contact the connection portion respectively at different positions along a circumferential direction of the connection portion, and
the plurality of contact members are in contact with an inner side of the tension ring and are displaced toward a center of the striking surface as the diameter of the circle surrounded by the tension ring is reduced.

3 more elements

A drum, comprising:

a tension ring;
a frame comprising a frame base, a step portion, and a striking surface support portion;
a head comprising a membrane member, and an upper frame and a lower frame sandwiching the membrane member;
and
a plurality of contact members,
wherein the membrane member comprises a striking surface and an edge portion, and a connection portion is formed between the striking surface and the edge portion for connecting the striking surface with the edge portion,
the edge portion of the membrane member is sandwiched by the upper frame and the lower frame, and the lower frame is placed on the frame base,
the step portion is connected with the frame base, and the striking surface support portion is connected with the step portion,
an interval is formed between the striking surface and the edge portion in a normal direction of the striking surface by the striking surface support portion,
inner circumferential surfaces of the plurality of contact members are in contact with the connection portion, and the plurality of contact members contact the connection portion respectively at different positions along a circumferential direction of the connection portion, and
the plurality of contact members are applied with a force toward a center side of the striking surface due to the tension ring.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/247,263Filed 8 Apr 2014
Priority: JP 2013-08468215 Apr 2013
Published: US 2014/0305280 A116 Oct 2014
Granted: 26 May 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G10D 13/16
Details of, or accessories for, percussion musical instruments: tuning devices; Hoops; Lugs
G10D 13/02
General design of percussion musical instruments: drums; Tambourines with drumheads
G10D
Stringed musical instruments

Family

US 2014/0305280 A1Pre-grant publication · published 16 Oct 2014
US 9,040,796 B2This patent

From the US filing history. Foreign family members aren’t listed.

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