Unlock instant, AI-driven research and patent intelligence for your innovation.

Keyboard device

A keyboard device and frame technology, applied in the direction of automatic musical instruments, instruments, electroacoustic musical instruments, etc., can solve the problems of the overall large-scale musical instruments

Inactive Publication Date: 2010-08-04
YAMAHA CORP
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem of increasing the size of the entire musical instrument

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Keyboard device
  • Keyboard device
  • Keyboard device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a longitudinal cross-sectional view of the keyboard device according to the present embodiment viewed from the side of the treble part (the right side as viewed from the player). The key 11 is integrally molded from synthetic resin in an elongated shape. The key 11 has a thin upper wall extending in the front-rear direction and thin side walls extending downward from the left and right ends of the upper wall, and is formed in a hollow shape open downward. In addition, the key 11 is supported by the key support part 13 of the frame 12 provided below so that a front-end|tip part and a rear-end part rotation center 14 may be made to swing in an up-down direction.

[0030] The frame 12 is integrally molded of resin so as to extend in the lateral direction (the direction in which the keys are arranged). Such as figure 1 with figure 2 As shown, the frame 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a keyboard device for reducing the height. A fixation holding part (28) for holding a substrate (26) and a movable holding part (29) are respectively integrated on the frame (12). The movable holding part (29) applies an acting force to one side of the fixation holding part (28) to the substrate (26). The substrate (26) is abutted to the fixation holding part (28). The substrate (26) is maintained between a fixation holding part (28) and a movable holding part (29). The movable holding part (29) has a transversally extending deformation part (29b). The deformation part (29b) has a fixed end that can extend in the upper and lower direction and can deforms in the front and rear direction.

Description

technical field [0001] The invention relates to a keyboard device used in electronic keyboard musical instruments such as an electronic organ and an electronic piano. Background technique [0002] Conventionally, as disclosed in Patent Document 1 below, for example, a keyboard device is known in which a board on which a switch for detecting a pressed / released state of a key is arranged is held by the elastic force of a leaf spring. In this keyboard device, the front end of the substrate is abutted against the hook, and the substrate is pressed against the hook by the elastic force of the leaf spring to realize the holding of the substrate. The leaf spring extends downward. In addition, the leaf spring has a fixed end extending laterally, and the leaf spring is deformed rearward when the substrate is mounted. Furthermore, the hook and the leaf spring are integrally formed on the frame. [0003] Patent Document 1: Japanese Patent Application Publication No. 01-51997 [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G10H1/34G10F1/02
Inventor 荒木胜广
Owner YAMAHA CORP