Sound outputting device

Abstract

According to an aspect, a sound outputting device includes a front unit, a first side unit, a second side unit, a sound transmitting portion, and a piezoelectric speaker. The first side unit is coupled to one end portion of the front unit. The second side unit is coupled to another end portion of the front unit. The sound transmitting portion is provided in the first side unit for transmitting a sound via cartilage conduction. The piezoelectric speaker vibrates the sound transmitting portion.

What is claimed is: 
     
         1 . A sound outputting device, comprising:
 a front unit configured to be arranged in front of an eye of a user;   a side unit configured to be arranged to an end portion of the front unit and to extend adjacent to one ear of the user;   a piezoelectric speaker configured to be arranged in a part of the side unit and to come in contact with a cartilage around an external auditory canal of an ear of the user.   
     
     
         2 . The sound outputting device according to  claim 1 , wherein
 the part of the side unit is configured to vibrate alternately in a direction toward the user and in a direction away from the user by a vibrations of the piezoelectric speaker.   
     
     
         3 . The sound outputting device according to  claim 1 , wherein
 the piezoelectric speaker has a rod-shape configured such that a direction where the piezoelectric speaker extends substantially coincides with a direction where the side unit in which the piezoelectric speaker is provided extends.   
     
     
         4 . The sound outputting device according to  claim 1 , wherein
 the piezoelectric speaker is configured to transmit a vibration to a tragus of the user by a vibration of the piezoelectric speaker, so as to transmit the sound to the user via cartilage conduction.   
     
     
         5 . The sound outputting device according to  claim 1 , wherein
 the side unit comprising a first portion in which the piezoelectric speaker being arranged, a second portion to be coupled to the front unit, and a cushioning member provided between the first portion and the second portion.   
     
     
         6 . The sound outputting device according to  claim 1 , further comprising a microphone provided in one end portion at a side of the front unit of the side unit, the microphone being arranged to face an opposite side of the user.