Title:
締結構造及び鍵盤装置
Document Type and Number:
Japanese Patent JP6747578
Kind Code:
B2
Abstract:
A fastening structure for fastening a to-be-fastened component to a wooden component by using a screw, wherein the wooden component is made of wood having a specific gravity of 0.08 g/cm3to 0.85 g/cm3inclusive, the screw has a nominal diameter of 0.8 mm to 3.5 mm inclusive, and the distance between a neutral position in a longitudinal direction of an effective screw part, which is the portion where the wooden component and a male screw part formed in a shaft part of the screw mesh together, and the surface of the wooden component that comes into contact with the to-be-fastened component is 1 mm to 15 mm inclusive.
Inventors:
Kaoru Fujishiro
Ichiro Osuka
Ichiro Osuka
Application Number:
JP2019506968A
Publication Date:
August 26, 2020
Filing Date:
March 22, 2018
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
F16B5/02; F16B25/00; G10C3/12; G10C9/00
Domestic Patent References:
| JP572919U | ||||
| JP2001317528A | ||||
| JP200127218A |
Attorney, Agent or Firm:
Nishizawa Kazumi
Tomoo Katsumata
Eisuke Ito
Yuko Kashiwano
Tomoo Katsumata
Eisuke Ito
Yuko Kashiwano