Installation structure for acoustic transducer and musical instrument

Patent metadata

Field	Value
Publication number	US-9779711-B2
Application number	US-201515301980-A
Country	US
Kind code	B2
Filing date	Apr 9, 2015
Priority date	Apr 9, 2014
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

An installation structure for an acoustic transducer configured to vibrate a vibrated body in a first direction so as to permit the vibrated body to generate sounds, wherein the acoustic transducer includes: a magnetic-path forming portion that forms a magnetic path; a vibrating unit configured to vibrate in the first direction; and a connecting unit connecting the vibrating unit and the vibrated body to transmit vibration of the vibrating unit to the vibrated body, wherein the magnetic-path forming portion has a through-hole penetrating therethrough in the first direction from a first opening to a second opening, the connecting unit passing through the through-hole, wherein the vibrating unit is disposed on a first-opening side of the magnetic-path forming portion and is fixed to the connecting unit on the first-opening side, and wherein the vibrated body is connected to the connecting unit on a second-opening side of the magnetic-path forming portion.

First claim

The invention claimed is:

1. An installation structure for an acoustic transducer configured to vibrate a vibrated body in a first direction so as to permit the vibrated body to generate sounds,
wherein the acoustic transducer includes:
a magnetic-path forming portion that forms a magnetic path, the magnetic-path forming portion including a first-opening side and a second-opening side, the second opening side located at an opposite end of the magnetic-path forming portion from the first opening-side, wherein the magnetic-path forming portion includes a through-hole penetrating therethrough in the first direction from a first opening on the first-opening side to a second opening on the second-opening side;
a vibrating unit configured to vibrate in the first direction with respect to the magnetic-path forming portion; and
a connecting unit that connects the vibrating unit and the vibrated body to each other, the connecting unit being configured to transmit vibration of the vibrating unit to the vibrated body,

wherein the connecting unit passes through the through-hole,
wherein the vibrating unit is disposed on the first-opening side of the magnetic-path forming portion and the vibrating unit is connected to the connecting unit on the first-opening side of the magnetic-path forming portion, and
wherein the vibrated body is disposed on the second-opening side of the magnetic-path forming portion and connected to the connecting unit on the second-opening side of the magnetic-path forming portion.

2. The installation structure for the acoustic transducer according to claim 1 ,
wherein the vibrating unit is connected to a first protruding portion of the connecting unit that protrudes from the first opening,
wherein the connecting unit includes a second protruding portion that protrudes from the second opening, the second protruding portion including a proximal end and a distal end, the proximal end located closer to the second opening than the distal end; and
wherein the vibrated body is connected to the distal end of the second protruding portion of the connecting unit.

3. The installation structure for the acoustic transducer according to claim 2 , wherein the vibrating unit is removably connected to the first protruding portion.

4. The installation structure for the acoustic transducer according to claim 1 , wherein the vibrating unit is supported by the magnetic-path forming portion through a damper portion on the first-opening side of the magnetic-path forming portion.

5. The installation structure for the acoustic transducer according to claim 2 , wherein the acoustic transducer further includes a restrictor that is held in engagement with the second protruding portion that protrudes from the second opening, the restrictor being configured to restrict a movement of the second protruding portion in a direction intersecting the first direction while allowing a movement of the second protruding portion in the first direction, at a position at which the restrictor is held in engagement with the second protruding portion.

6. The installation structure for the acoustic transducer according to claim 2 , wherein the connecting unit includes a distal joint portion provided at the distal end of the second protruding portion to which the vibrated body is connected, the distal joint portion being configured to allow an axis of the connecting unit to incline with respect to the first direction.

7. The installation structure for the acoustic transducer according to claim 2 ,
wherein the second protruding portion of the connecting unit includes a proximal end portion and a distal end portion, and
wherein the connecting unit includes:
a vibrating-side shaft portion passing through the through-hole of the magnetic-path forming portion and including the first protruding portion and the proximal end portion of the second protruding portion;
a vibrated-side shaft portion protruding from the vibrated body toward the magnetic-path forming portion and including the distal end portion of the second protruding portion; and
an intermediate joint portion connecting the vibrating-side shaft portion and the vibrated-side shaft portion to each other and configured to allow an axis of the vibrating-side shaft portion and an axis of the vibrated-side shaft portion to incline relative to each other.

8. An installation structure for an acoustic transducer configured to vibrate a vibrated body in a first direction so as to permit the vibrated body to generate sounds,
wherein the acoustic transducer includes:
a magnetic-path forming portion that forms a magnetic path, the magnetic-path forming portion including a first-opening side and a second-opening side, the second opening side located at an opposite end of the magnetic-path forming portion from the first opening-side,

wherein the magnetic-path forming portion includes a through-hole penetrating therethrough in the first direction from a first opening on the first-opening side to a second opening on the second-opening side;
a vibrating unit configured to vibrate in the first direction with respect to the magnetic-path forming portion; and
a connecting unit that connects the vibrating unit and the vibrated body to each other, the connecting unit being configured to transmit vibration of the vibrating unit to the vibrated body,

wherein the connecting unit passes through the through-hole,
wherein the connecting unit is connected to the vibrating unit on the first-opening side of the magnetic-path forming portion, and
wherein the connecting unit is connected to the vibrated body on the second-opening side of the magnetic-path forming portion.

9. The installation structure for the acoustic transducer according to claim 8 ,
wherein the vibrating unit is connected to a first protruding portion of the connecting unit that protrudes from the first opening,
wherein the connecting unit includes a second protruding portion that protrudes that protrudes from the second opening, the second protruding portion including a proximal end and a distal end, the proximal end located closer to the second opening than the distal end; and
wherein the vibrated body is connected to the distal end of the second protruding portion of the connecting unit.

10. The installation structure for the acoustic transducer according to claim 9 , wherein the vibrating unit is removably connected to the first protruding portion.

11. The installation structure for the acoustic transducer according to claim 8 , wherein the vibrating unit is supported by the magnetic-path forming portion through a damper portion on the first-opening side of the magnetic-path forming portion.

12. The installation structure for the acoustic transducer according to claim 9 , wherein the acoustic transducer further includes a restrictor that is held in engagement with the second protruding portion that protrudes from the second opening, the restrictor being configured to restrict a movement of the second protruding portion in a direction intersecting the first direction while allowing a movement of the second protruding portion in the first direction, at a position at which the restrictor is held in engagement with the second protruding portion.

13. The installation structure for the acoustic transducer according to claim 9 , wherein the connecting unit includes a distal joint portion provided at the distal end of the second protruding portion to which the vibrated body is connected, the distal joint portion being configured to allow an axis of the connecting unit to incline with respect to the first direction.

14. The installation structure for the acoust

Assignees

• Yamaha Corp

Inventors

• Ohnishi Kenta
• Sumino Shinji

Classifications

• G10C3/06

  Resonating means, e.g. soundboards or resonant strings; Fastenings thereof · CPC title

• G10H1/32

  Constructional details · CPC title

• G10D3/02

  Resonating means, horns or diaphragms · CPC title

• G10H3/146 Primary

  using a membrane, e.g. a drum; Pick-up means for vibrating surfaces, e.g. housing of an instrument · CPC title

• G10K9/13 Primary

  using electromagnetic driving means · CPC title