A key driving structure for automatic playing piano

Abstract

The invention discloses a key driving structure enabling a player to automatically play piano. The key driving structure comprises two parallel fixing block bars arranged at intervals on two sides of a mounting groove in a central disc of a piano, multiple connection sheets that are adjustably arranged and fixed on the upper ends of the two fixing block bars and arranged in the direction of the mounting groove, and solenoid components that are arranged on the connection sheets, positioned in a gap between the two fixing block bars and used for driving keys on a piano keyboard. One connection sheet is at least provided with one solenoid component. The number of the solenoid components matches that of the keys. Through design of the two fixing block bars, solenoids can be connected and supported steadily. The design of the connection sheets enables the solenoids to be more flexible in position adjusting, and thus the working force bearing intensity and the service life of the solenoids can be effectively improved. Meanwhile, the solenoid components themselves can be adjusted in height through adjustable nuts so as to adapt to more types of keys. Moreover, a mounting pallet is reinforced so that the structure can be connected more stably.

Description

technical field [0001] The invention relates to the technical field of automatic playing pianos, in particular to a key driving structure that can be added to an existing normal piano in an additional installation manner to realize automatic playing. Background technique [0002] In the mid-19th century, American reed organ makers perfected the use of a vacuum to operate the reeds in their organs to produce sound. Many early experiments with player pianos came from the organ industry. This is arguably the earliest pneumatic playing piano. [0003] In 1879, Scientific American magazine showed and illustrated the world's first player piano. This is a device placed in front of the keyboard of a piano or organ that is played pneumatically from what appears to be a scroll of paper. The device is a curiosity at best and probably never made and sold to the public. [0004] The first successful commercial player piano was the Pianola player piano introduced in 1897. When the Ae...

AI Technical Summary

Problems solved by technology

The resulting effect is that the overall height of Yamaha's solenoid structure is increased, so that the lower end protrudes more clearly from the classic outline of the piano. This effect first visually damages the classic outline of the piano. It greatly affects the appearance of the piano, and secondly, this obviously prominent structural design will happen to conflict with the normal pedal lever design of the piano (interference phenomenon). Therefore, in order to avoid this conflict, the design of the pedal lever needs to avoid the protruding here. part, so it is likely to be designed as a multi-bending shape, such as image 3 As shown, the design change of this pedal mechanism is detrimental to its function

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