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Key for keyboard instrument

Through the design of forming recesses and locking parts on the keyboard instrument keys, the counterweights of elastic materials are used to achieve quick attachment, which solves the problems of cumbersome and high-cost attachment of counterweights in the prior art, and realizes low-cost keyboard instrument keys. The creation and realization of the desired press feeling.

Active Publication Date: 2014-10-01
KAWAI MUSICAL INSTR MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As described above, in the case where the weight is attached to the key body by bonding or insert molding, the operation takes much time and labor, which leads to an increase in manufacturing cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will now be described in detail with reference to the accompanying drawings showing preferred embodiments thereof. Figure 1A Keys for a keyboard musical instrument of an embodiment of the present invention are shown. Key 1 is a white key applied to a keyboard such as an electronic piano, and the keyboard passes in the left and right directions (as in Figure 1A It is formed by arranging many (for example, 88) keys 1 in parallel (together with black keys (not shown)) in the front-rear direction as viewed in the medium. as in Figure 1A As shown in, the key 1 is included in the front-back direction (as in the Figure 1A A key body 2 extending in the left and right direction as viewed in the center) and a counterweight 3 attached to the key body 2 .

[0025] The key body 2 is made of a predetermined kind of synthetic resin such as AS resin or ABS resin and is formed as a molded article having a predetermined shape extending in the front-rear direction...

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PUM

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Abstract

A key for a keyboard instrument, which makes it possible to easily attach a weight to a synthetic resin-made key body while securing a desired touch weight to be given during key depression, and can be manufactured at low costs. The key includes a pivotally movable key body made of a synthetic resin, extending in a front-rear direction, and having a recess open downward, and a weight made of a material whose main component has an elasticity, and attached to the key body in a state received in the recess. The recess has a locking portion formed at an opening edge portion in a manner projecting therefrom such that the locking portion allows the weight to be received into the recess while being elastically deformed when the weight is attached to the key body, and locks the received weight in a state prevented from falling out.

Description

technical field [0001] The present invention relates to a key for a keyboard musical instrument such as an electronic piano, and more particularly to a key for a keyboard musical instrument which is made of synthetic resin and has a weight attached thereto so as to obtain The desired touch weight to give during key presses. Background technique [0002] Conventionally, keys described in, for example, Japanese Laid-Open Patent Publication (Kokai) No. 2009-109601 have been referred to as keys for keyboard musical instruments of the above-mentioned type. A key for a keyboard musical instrument includes a key body (made of synthetic resin) extending in a front-rear direction and having a rear portion thereof pivotally supported, and a weight attached to the key body. The key body is formed such that a transverse cross-section perpendicular to the lengthwise direction has a downwardly open U shape, and a block-shaped weight is bonded to the top of the key body, and left and righ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10C3/12G10H1/34
CPCG10C3/12G10H1/346
Owner KAWAI MUSICAL INSTR MFG CO LTD