ULTRASONIC TRANSMITTING UNIT

摘要

An ultrasonic transmitting unit includes a first vibrating section and a second vibrating section vibrating at the same predetermined frequency with respect to each other. The ultrasonic transmitting unit includes a relay portion transmitting an ultrasonic vibration from the first vibrating section to the second vibrating section and positioned at a position corresponding to one of an antinode position of the vibration in the first vibrating section and a position different from an antinode position and a node position of the vibration in the second vibrating section, and a non-contact vibrating portion extending in the second vibrating section from the relay portion toward a first vibrating section side with being not in contact with the first vibrating section.

主权项

1. An ultrasonic transmitting unit comprising:
a first vibrating section which is configured to transmit an ultrasonic vibration and thereby configured to perform a vibration having an antinode position and a node position at a predetermined frequency; a second vibrating section which is configured to perform a vibration having an antinode position and a node position at the same predetermined frequency as in the first vibrating section, when the ultrasonic vibration is transmitted from the first vibrating section; a relay portion which relays between the first vibrating section and the second vibrating section, and which is configured to transmit the ultrasonic vibration from the first vibrating section to the second vibrating section, the relay portion being positioned at a position corresponding to one of the antinode position of the vibration in the first vibrating section and a position different from the antinode position and, the node position of the vibration in the second vibrating section when the first vibrating section and the second vibrating section vibrate at the predetermined frequency; and a non-contact vibrating portion which is provided in the second vibrating section and extends from the relay portion toward a first vibrating section side in a state that the non-contact vibrating portion is not in contact with the first vibrating section.