Abstract: A resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein the olefinic resin consists of block polypropylene and polyethylene, and wherein a content of the polyethylene in the olefinic resin is greater than or equal to 1% by mass and less than or equal to 10% by mass.

Abstract: By limiting deformation of an upper cover part 41 toward an inner peripheral side through catching between an outer peripheral surface of a bent part 21b and a stopper 46 or by forming an interval between a sensor installation part 21d and the upper cover part 41 to gradually increase from the inner peripheral side toward an outer peripheral side, at the time of being struck from a lateral direction, the upper cover part 41 and the lateral cover part 42 are suppressed from contacting an outer edge of the sensor installation part 21d. Thus, since the protrusion 45 is easily pressed to the edge sensor 5, the sensitivity of the edge sensor 5 with respect to the striking from the lateral direction can be facilitated.

Abstract: An electronic cymbal and a bell part sensor installation method are provided. The electronic cymbal includes: a disk-shaped frame; a frame bell part which is configured at a center of the frame in a top view; a bell part sensor which is attached onto the frame bell part in a circumferential direction and detects a hit on the frame bell part; and a cover which covers the frame and the bell part sensor and has a surface formed as a hit surface, wherein the bell part sensor is separated in at least a radial direction of the frame bell part.

Abstract: Provided are an electronic cymbal and a case attachment method with which even when a case is attached to a frame, the distribution of hit sensitivity against a hit on the frame is uniform. In this electronic cymbal (1), the case (8) is attached to the frame (4) by fitting an outer peripheral hooking section (8b) of a case (8) into an outer peripheral support section (4b) of a frame (4), and fitting an inner peripheral enclosing section (8d) of the case (8) into the inner peripheral side of the frame (4). These components can be mounted without forming a screw hole in the frame (4) and screwing the case (8) and the frame (4). Thus, it is possible to suppress the stress concentration on a specific position of the frame (4) due to the screwing, and to uniformize the distribution of the hit sensitivity on the frame (4).

Abstract: An electronic percussion instrument, a stroke detection device, and a stroke detection method which can improve stroke detection accuracy are provided. A thickness dimension (L2) of an upper cover part (5b1) is approximately constant from the inner circumferential side to the outer circumferential side in a region facing the upper surface of an outer circumferential part (4b3) of the frame bow part (4b) (a concave part formed according to a level difference between a bent part (4b2) and the outer circumferential part (4b3)). Accordingly, the entire upper cover part (5b1) is easily deformed such that it is bent when struck, and thus a protrusion part (5b3) can be securely pressed to an edge sensor (7b) according to deformation of the upper cover part (5b1). Therefore, the accuracy of detection of a stroke applied to the upper cover part (5b1) can be improved.

Abstract: An electronic percussion instrument, a stroke detection device, and a stroke detection method which can improve stroke detection accuracy are provided. A thickness dimension (L2) of an upper cover part (5b1) is approximately constant from the inner circumferential side to the outer circumferential side in a region facing the upper surface of an outer circumferential part (4b3) of the frame bow part (4b) (a concave part formed according to a level difference between a bent part (4b2) and the outer circumferential part (4b3)). Accordingly, the entire upper cover part (5b1) is easily deformed such that it is bent when struck, and thus a protrusion part (5b3) can be securely pressed to an edge sensor (7b) according to deformation of the upper cover part (5b1). Therefore, the accuracy of detection of a stroke applied to the upper cover part (5b1) can be improved.

Abstract: An electronic cymbal and a bell part sensor installation method are provided. The electronic cymbal includes: a disk-shaped frame; a frame bell part which is configured at a center of the frame in a top view; a bell part sensor which is attached onto the frame bell part in a circumferential direction and detects a hit on the frame bell part; and a cover which covers the frame and the bell part sensor and has a surface formed as a hit surface, wherein the bell part sensor is separated in at least a radial direction of the frame bell part.