Title:
四節回転機構
Document Type and Number:
Japanese Patent JP7448213
Kind Code:
B2
Abstract:
To provide a four-node rotation mechanism that can obtain a deceleration effect both when opening and closing a lid without imposing restrictions on design of the lid.SOLUTION: A four-node rotation mechanism used to open and close a lid, includes: a link, one end of which is connected to a rotary shaft A of the lid; a link b one end of which is connected to a rotary shaft B of the other end of the link a; a link c one end of which is connected to a rotary shaft C of the other end of the link b and provided with a gear at its other end; and a link d one end of which is connected to a rotary shaft D of the gear and the other end of which is a fixed link connected to the rotary shaft A of the lid; and a unidirectional rotary damper which engages with the gear and has viscous resistance to rotation in one direction. And a position of dead center as of when the link c is a prime mover node, is included within a movable range of the lid.SELECTED DRAWING: Figure 3
Inventors:
Shintaro Mezaki
Application Number:
JP2020205041A
Publication Date:
March 12, 2024
Filing Date:
December 10, 2020
Export Citation:
Assignee:
Korg Co., Ltd.
International Classes:
G10H1/32; E05F3/14; E05F5/00; G10B3/00; G10C3/02
Domestic Patent References:
| JP2009114734A |
Foreign References:
| WO2017029878A1 |
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Munehiro Yoshimura
Yukio Nakamura
Munehiro Yoshimura