SUPPORT MECHANISM OF ROTATION COMPONENTS OF KEYBOARD MUSICAL INSTRUMENT AND LUBRICATION METHOD FOR ROTATION COMPONENTS OF KEYBOARD MUSICAL INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a support mechanism of rotation components of a keyboard musical instrument and a lubrication method for the rotation components of the keyboard musical instrument with which a lubricant agent can be efficiently and sufficiently supplied to contact portions of a pivotal section and the rotation components and thereby the lubrication of the rotation components can be sufficiently performed and a manufacture cost can be reduced.

SOLUTION: The rotation component 24 in the support mechanism 1 for the rotation components of the keyboard musical instrument which supports a plurality of the rotation components 24 rotating with a key touch in the state of lining up in the line-up direction of a plurality of keys 23 has a recessed section to be supported 24a and is equipped with the pivotal section 4 which extends in the line-up direction of the plurality of the keys 23 and rotatably supports the rotation component 24 via the section to be supported 24a. The pivotal section 4 has an introducing hole 4a which extends in a longitudinal direction and introduces the lubricant agent and a supply hole 4b which continues with the introducing hole 4a, opens to face the section to be supported 24a and supplies the lubricant agent introduced to the introducing hole 4a to a contact portion 5 to the section to be supported 24a.

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