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Support components and keyboard devices

A technology of supporting components and supporting parts, applied in stringed instruments, instruments, etc., which can solve the problems of changing the touch feeling of keys and difficulty in reducing the cost of manufacturing acoustic pianos, etc.

Active Publication Date: 2019-06-14
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the structure of the support assembly is changed, the touch feeling at the time of key operation will be greatly changed
Therefore, it is difficult to reduce the cost of manufacturing acoustic pianos

Method used

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  • Support components and keyboard devices
  • Support components and keyboard devices
  • Support components and keyboard devices

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0039] [Structure of keyboard device 1]

[0040] The keyboard device 1 in one embodiment of the present invention is exemplary, which is obtained by applying an example of the support assembly according to the present invention to an electronic piano. In order to obtain a touch feeling close to that of a grand piano when keys are operated, the electronic piano includes a structure similar to a support assembly included in a grand piano. by using figure 1 , describing the general situation of the keyboard device 1 according to an embodiment of the present invention.

[0041] figure 1 is a side view showing the mechanical structure of a keyboard device according to an embodiment of the present invention. like figure 1 As shown, the keyboard device 1 according to one embodiment of the present invention includes a plurality of keys 110 (eighty-eight keys in this example) and an action mechanism for each key 110 . The action mechanism includes the support assembly 20 , the ham...

no. 2 example

[0078] by reference Figure 6A and Figure 6B The support connection portion 2505A of the jack 250A and the jack support portion 2105A of the support member 210A used in the keyboard device 1A according to the second embodiment of the present invention are described. Figure 6A is an enlarged side view of the supporting part of the ejector rod in the supporting assembly according to one embodiment of the present invention. Figure 6B is a disassembled view of an enlarged side view of a support portion of a mandrel in a support assembly according to an embodiment of the present invention. here, Figure 6A is a side view of the support connection portion 2505A engaging the ram support portion 2105A. Figure 6B is the support connection portion 2505A and the torsion coil spring 280A (only the second arm 2804A is shown in Figure 6A and Figure 6B Middle) Side view when removed from the ram support portion 2105A. It should be noted that, for the convenience of description, t...

no. 3 example

[0089] [Structure of keyboard device 1B]

[0090] Like the keyboard device 1 of the first embodiment, the keyboard device 1B of the third embodiment of the present invention is obtained by applying an example of the support assembly according to the present invention to an electronic piano. The keyboard device 1B is similar to the keyboard device 1, but differs therefrom in the support assembly and the support structure of the support assembly. Also, the keyboard device 1B differs from the keyboard device 1 in the method of adjusting the upward rotation of the tremolo lever provided to the support assembly. In the following description, differences are mainly described, and common parts are not described.

[0091] Figure 7 is a side view showing the structure of a keyboard device according to an embodiment of the present invention. The support assembly 60 is fixed to the support rail 960 . The supporting frame 960 is supported by the bracket 900 . The support assembly 20...

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PUM

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Abstract

The support assembly includes a support that is rotatably disposed relative to the frame; a ram support portion connected to the support; and a ram having a recessed portion in a lower portion of the ram that positions the ram support portion in the recess. a part in which the plunger is rotatably arranged to the support; and an acting part, which is fixed to the plunger and receives downward action. The concave portion has an open end having a width greater than that of the jack support portion. The concave portion may have an open end portion having a width greater than that of the ejector pin support portion.

Description

technical field [0001] The present invention relates to support assemblies for use in keyboard devices. Background technique [0002] Conventional acoustic pianos such as grand pianos and upright pianos are configured with many parts. Also, since assembling these parts is very complicated, the assembling operation takes a long time. Specifically, since the action mechanism provided for each key requires many parts, its assembling operation is very complicated. [0003] For example, in the action mechanism described in Japanese Unexamined Patent Application Publication No. 2005-292361, a plurality of parts operate together, and key operations by key depression and key release are transmitted to hammers. In particular, the support assembly forming part of the operating mechanism operates with the various components assembled together. The support assembly has not only a mechanism for hammer strike by the hammer according to key depression but also an escapement mechanism fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10C3/12G10C3/16
CPCG10C3/12G10C3/16G10C3/18G10C3/22G10C3/24
Inventor 大庭聪斗市来俊介
Owner YAMAHA CORP