Keyboard device for playing music automatically

A keyboard device and automatic performance technology, applied in the direction of automatic musical instruments, stringed instruments, instruments, etc., to achieve the effect of reducing the number of parts, reducing manufacturing errors, and enhancing durability
CN101266783BInactive Publication Date: 2011-11-16YAMAHA CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YAMAHA CORP
Publication Date
2011-11-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention supplies a keyboard device for automatic performance, which reduces the incorrectness of the key drive due to the manufacturing error or time change. A hammer (HM) corresponding to each key (10) is collocated to link with the key (10); a driver (30) is set relatively to each hammer (HM). A projecting driven part, namely a bulge (25) is respectively set downwards at the front lateraland the rear lateral of the base (22) of the hammer (HM). The driver (30) is coiled with a solenoid (32) around the spool (31). The push rod (33) can move to and fro in the spool (31). The disc driving part (34) forms a whole at the upper part of the push rod (33). The upper surface of the driving part (34) forms a flat surface (34a). When the driver (30) drives the hammer (HM), the flat surface (34a) of the driving part (34) resists the top end (25a) of the projecting part (25).
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Description

technical field

[0001] The present invention relates to a keyboard device for automatic performance that utilizes the driving force of a driving member to drive keys. Background technique

[0002] Conventionally, there is known a keyboard device for an automatic performance that realizes an automatic performance by driving keys by pressing the keys using the driving force of a driving member (Patent Document 1 below).

[0003] In the device, the keys can freely swing around the key fulcrum, and corresponding to each key, a solenoid as a driving part is provided. The solenoids are arranged in a staggered manner in two rows along the key arrangement direction. The top end of the push rod arranged inside each solenoid is driven by pushing the lower surface of the rear end portion of the key from bottom to top, thereby driving the corresponding key in the direction of pressing the key.

[0004] Patent Document 1: Japanese Utility Model Patent No. 2555777

[0005] However, due...

Claims

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