Title:
BLADE DRIVING DEVICE AND IMAGING APPARATUS INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2023167696
Kind Code:
A
Abstract:
To provide a blade driving device that can prevent rebound of blades when they are stopped, while avoiding an increase in the thickness of the device in a direction along a driving shaft.SOLUTION: A blade driving device 1 comprises: a bottom board 10 that is provided with an opening S; blades 21-24 that are movable between closed positions and open positions; a rotational driving member 50 that is connected to the blades 21-24 and can rotate around a driving shaft 18 to move the blades 21-24 between the closed positions and open positions; a brake member 90 configured to be rotatable near the rotational driving member 50; and a brake pad 100 that is in slide contact with an outer peripheral surface 94A of the brake member 90 to prevent the rotation of the brake member 90 with the friction. The rotational driving member 50 has pushers 54, 55 configured to be brought into contact with the brake member 90 to push the brake member 90 before the end of at least one operation of an opening operation and a closing operation.SELECTED DRAWING: Figure 2
Inventors:
YAMAGUCHI YASUTAKA
Application Number:
JP2022079064A
Publication Date:
November 24, 2023
Filing Date:
May 12, 2022
Export Citation:
Assignee:
NIDEC PREC CORP
International Classes:
G03B9/08
Attorney, Agent or Firm:
Tomohiro Mori