US Patent No. 10,463,342

ULTRASONIC TRANSDUCER


Patent No. 10,463,342
Issue Date November 05, 2019
Title Ultrasonic Transducer
Inventorship Isao Saeki, Saitama (JP)
Assignee NIHON DEMPA KOGYO CO., LTD., Tokyo (JP)

Claim of US Patent No. 10,463,342

1. An ultrasonic device, comprising:a transducer main body;
a power source, having an output shaft;
a coupling, swingably and loosely fitted between the transducer main body and the output shaft of the power source that swings the transducer main body; and
a flywheel, swingably and loosely fitted to the output shaft of the power source via an oil layer, and is held by a washer,
wherein the coupling comprises:
a first hub, disposed at a side of the transducer main body;
a second hub, disposed at a side of the power source, and the first hub and the second hub are disposed opposed to one another;
a buffer, disposed between the first hub and the second hub, wherein the buffer is configured to reduce generation of vibration and noise from the transducer main body; and
a compression coil spring, disposed between the buffer and the second hub, wherein the compression coil spring axially biases the first hub and the second hub.