Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Keyboard device

A keyboard device and base component technology, applied in stringed instruments, wind instruments, instruments, etc., can solve the problems of reduced adhesion of adhesive materials, unpleasant players, weak strength of key parts, etc. powerful effect

Inactive Publication Date: 2008-04-02
ROLAND CORP
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the integrally formed key is formed by a kind of resin material, there are problems such as the following: for example, when a hard material is used in order to improve the strength, the key portion of the key pressed by the player lacks hygroscopicity. Hygroscopicity and rough material, the strength of the button part is weak
[0006] However, as a key that uses an adhesive material to bond the two parts of the base member and the plate member, there is such a problem that when the player presses the key strongly, or when a long time passes after bonding, the bonding of the adhesive material Capacities will be reduced causing board parts to peel off
[0007] In addition, since the adhesive is applied between the surface of the base member and the surface of the plate member, there is a problem that when the adhesive is applied unevenly, part of it will be peeled off, resulting in a gap between the base member and the plate member. space between
If a space is formed between the base member and the plate member, abnormal noise will be generated when the player's fingertips touch the keys, giving the player an unpleasant feeling.

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

[0079] Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a diagram showing the structure of a keyboard device 1 according to an embodiment of the present invention. FIG. 1(a) is a top view of the keyboard device 1, and FIG. 1(b) is a side view of the keyboard device 1. In addition, in the following description, the longitudinal direction (arrow X direction) of the white key 2 and the black key 3 is taken as the first direction, and the direction (arrow Y direction) orthogonal to the first direction is taken as the second direction, The height direction (arrow Z direction) of the keyboard device 1 will be described as the third direction.

[0080] As shown in FIG. 1( a ) and FIG. 1( b ), the keyboard device 1 includes a plurality of white keys 2 and black keys 3 that a player presses. The white key 2 and the black key 3 have a swing shaft hole at the rear end side of each key (the left side of the arrow X d...

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 present invention provides a keyboard device, capable of fixing matrix part and plate part hard and reducing abnormity noise generated by key-press. The matrix part (21) is burned together with the plate part through supersonic welding, so as to fix each other hard compared to the condition of connecting through adhesive. Thus, it is able to restrain the matrix part (21) peeling off from the plate part (22) even though executants press key with high power or during a long time. Moreover, as to noses (31a to 31f) of the plate part (22), the occupied ratio of the noses relative to key-press part (2a) is more than that of the noses (31a, 31b) relative to a slightness part (2b), thus the welding connection of the key-press part (2a) is tighter. There is no clearance between the matrix part (21) and the plate part (22), so the key-press part (2a) can restrain the abnormity noise due to key-press.

Description

technical field [0001] The present invention relates to a keyboard device, and in particular, to a keyboard device capable of firmly fixing a base member and a plate member and reducing the generation of abnormal noise when keys are pressed. Background technique [0002] As disclosed in JP-A-49-35209, there is known a keyboard device including a plurality of keys integrally formed of a resin material. Since the integrally formed key is formed by a kind of resin material, there are problems such as the following: for example, when a hard material is used in order to improve the strength, the key portion of the key pressed by the player lacks hygroscopicity. If rough material is used due to its hygroscopicity, the strength of the key portion will be weak. [0003] Therefore, as disclosed in Japanese Patent Laying-Open No. 7-44156, such a key is also known in which a surface member (plate member) made of a sweat-absorbing material is bonded to the key (base member) by an adhes...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G10C3/12G10B3/12
CPCG10C3/12G10C3/125
Inventor 皆川真宇野史郎高田征英
Owner ROLAND CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products