Abstract: A capacitor 8 is connected in parallel to both ends of two series-connected semiconductor devices 1, the connecting terminals of the capacitor are arranged so that they become immediately close to the terminal positions of the semiconductor devices 1, inductance of a loop circuit comprising the semiconductor devices 1 and capacitors 8 is suppressed o below 250 nH and thus, a semiconductor switching circuit is constructed. Three sets of this semiconductor switching circuit are connected in parallel with each other, both ends of upper and lower series-connected semiconductor devices in the semiconductor switching circuit are made the main circuit inputs or outputs and the intermediate connecting point of the upper and lower semiconductor devices is made the main circuit output or input and using the capacitors 8 as filter capacitors and surge voltage absorbing capacitors and thus, a power converter is constructed by only two kinds of capacitors and semiconductors.

Abstract: In a fishing reel, a handle (A) is mounted on a drive shaft of a take-up drive mechanism. The drive shaft is rotatably supported within a reel main body. The handle includes a handle arm, a T-shaped handle knob supported rotatably on one end portion of the handle arm by a support shaft, a balancer consisting of a balance forming member fixed to the other end portion of the handle arm by another support shaft, and a cap mounted on the handle arm. The handle arm includes a linear portion extending from the center portion of the handle arm toward one end portion thereof, a linear portion extending from the center portion of the handle arm toward the other end portion thereof, a bent portion formed such that it is bent outwardly in the axial direction of the drive shaft, and a linear portion extending from the bent portion.

Abstract: A clutch mechanism of a reel for fishing which can provide a stable winding operation and a comfortable clutch switching operation under a large load. The clutch mechanism is provided between side plates 1a and 1b of a reel main body, and switches a spool between winding and free conditions such that a pinion gear meshing with a drive gear is engaged with and disengaged from a clutch engagement portion rotatable together with the spool with the aid of a clutch plate operable by a switching member. A limiting portion is provided on the switching member to prevent the clutch plate from moving in a direction opposite to the spool at the winding operation.