Pedal device

Patent metadata

Field	Value
Publication number	US-2023419933-A1
Application number	US-202318465379-A
Country	US
Kind code	A1
Filing date	Sep 12, 2023
Priority date	Mar 24, 2021
Publication date	Dec 28, 2023
Grant date	—

Abstract

A pedal device includes a case, a foot lever including a first portion located inside the case and a second portion located outside the case, the foot lever being arranged to be rotatable with respect to the case, a center of rotation of the foot lever being located between the first portion and the second portion, a first sensor detecting a position of the foot lever between a rest position and an end position, and a reaction force member contacting with the foot lever and applying a reaction force while the foot lever rotates from the rest position to the end position, the reaction force member being located corresponding to a portion opposite to the center of rotation of the first portion.

First claim

What is claimed is:

1 . A pedal device for an electronic musical instrument, the pedal device comprising:
a case; a foot lever including a first portion located inside the case and a second portion located outside the case, wherein:
the foot lever is rotatably arranged with respect to the case; and
a center of rotation of the foot lever is located between the first portion and the second portion;
a first sensor configured to detect a position of the foot lever between a rest position and an end position; a first reaction force member that:
contacts the foot lever and applies a reaction force as the foot lever rotates from the rest position to the end position; and
is located in a portion of a side opposite to the center of rotation of the first portion; and
a control unit including a processor configured to, in a state where the first reaction force member is in contact with the foot lever and the detected position of the foot lever:
calibrate the position of the foot lever that changes a performance sound in response to change in the reaction force based on first information set based on a first position of the foot lever and information relating to the position of the foot lever detected by the first sensor.

2 . The pedal device according to claim 1 further comprising:
a memory unit storing the first information,
wherein the control unit is configured to transmit a first signal that changes the performance sound based on the detected first position of the foot lever and the first information stored in the memory unit to a sound source unit including a signal processor.

3 . The pedal device according to claim 2 , wherein the first information is stored according to the detected position of the foot lever.

4 . The pedal device according to claim 1 , further comprising:
a second sensor different from the first sensor and configured to detect the first information, wherein the control unit is configured to transmit a first signal that changes the performance sound based on the detected first position of the foot lever and the detected first information to a sound source unit including a signal processor.

5 . The pedal device according to claim 4 , wherein:
the foot lever further rotates from the first position to a second position corresponding to a preset offset, and the first signal is transmitted after the first sensor detects the second position.

6 . The pedal device according to claim 4 , wherein
the first reaction force member has a center of rotation; and the second sensor acquires the first information based on an amount of rotation of the center of rotation of the reaction force member.

7 . The pedal device according to claim 4 , wherein the control unit stores the first information detected by the second sensor in the memory unit, in a state where a predetermined condition is satisfied.

8 . The pedal device according to claim 4 , wherein the control unit transmits the first signal to the sound source unit, in a state where the detected first position of the foot lever reaches a threshold value of the first sensor and the second sensor does not detect the first information.

9 . The pedal device according to claim 1 , wherein a position of a tip of the second portion in the foot lever, in changing the performance sound, includes a range within 5 mm before and after a position where 0.5 kg or more of a reaction force is applied thereto as a reference.

10 . The pedal device according to claim 1 , wherein the first sensor extracts information relating to a position of the foot lever based on a predetermined condition.

11 . The pedal device according to claim 1 , wherein the first sensor and the reaction force member are arranged on the case, which has an integral structure.

12 . A pedal device for an electronic musical instrument, the pedal device comprising:
a case; a foot lever arranged to be rotatable in the case; a first sensor configured to detect a position of the foot lever between a rest position and an end position; and a first reaction force member contacting the foot lever and applying a reaction force as the foot lever rotates from the rest position to the end position, wherein the first sensor and the first reaction force member are arranged on the case.

13 . The pedal device according to claim 12 , wherein the first sensor and the first reaction force member are arranged adjacent to each other on the same surface of the case.

Assignees

• Yamaha Corp

Inventors

• Yamamoto Shin
• Nishida Kenichi
• Nakamura Ryosuke
• Mizuguchi Takahiro
• Mita Masaaki

Classifications

• G10H1/348 Primary

  Switches actuated by parts of the body other than fingers · CPC title

• G10H2220/281

  with two contacts, switches or sensor triggering levels along the key kinematic path · CPC title

• G10H1/0558

  using variable resistors · CPC title

• G10H2220/391

  Angle sensing for musical purposes, using data from a gyroscope, gyrometer or other angular velocity or angular movement sensing device · CPC title