US 2014/0368941 A1 · MIRROR DRIVING DEVICE

Abstract

A mirror driving device includes a lead screw configured to be driven by a drive source, a mirror member configured to be movable between a mirror-down position and a mirror-up position, a mirror driving member configured to rectilinearly move to drive the mirror member between the mirror-down position and the mirror-up position, and a restriction unit configured to switch between a restriction state that restricts a rectilinear movement of the mirror driving member and a restriction release state that releases the restriction state. The restriction unit switches between the restriction state and the restriction release state without allowing the mirror driving member to rectilinearly move when the mirror member is in the mirror-up position or the mirror-down position, and the mirror driving member rectilinearly moves in conjunction with driving of the lead screw after the restriction unit switches from the restriction state to the restriction release state.

Claims13

Dependent claims

A mirror driving device comprising:

a drive source;
a lead screw configured to be driven by the drive source;
a mirror member configured to be movable between a mirror-down position and a mirror-up position;
a mirror driving member configured to rectilinearly move to drive the mirror member between the mirror-down position and the mirror-up position;
and
a restriction unit configured to switch between a restriction state that restricts a rectilinear movement of the mirror driving member and a restriction release state that releases the restriction state,
wherein the restriction unit switches between the restriction state and the restriction release state without allowing the mirror driving member to rectilinearly move when the mirror member is in the mirror-up position or the mirror-down position, and
wherein the mirror driving member rectilinearly moves in conjunction with driving of the lead screw after the restriction unit switches from the restriction state to the restriction release state.

5 more elements

A mirror driving device comprising:

a drive source;
a lead screw configured to be driven by the drive source;
a mirror member configured to be movable between a mirror-down position and a mirror-up position;
a mirror driving member configured to rectilinearly move to drive the mirror member between the mirror-down position and the mirror-up position;
a rotational member meshing with the lead screw and rotatably mounted on the mirror driving member;
and
a restriction member configured to restrict a rectilinear movement of the mirror driving member by engaging with at least a part of the rotational member,
wherein the restriction member allows the rotational member to rotate when the mirror member is in the mirror-up position or the mirror-down position,
wherein, in a case where the mirror member is in the mirror-up position or the mirror-down position, as the lead screw is driven, the rotational member rotates between a restriction position that restricts the rectilinear movement of the mirror driving member and a restriction release position that releases the rectilinear movement from being restricted, and
wherein the rotational member rectilinearly moves together with the mirror driving member when the mirror member is in between the mirror-up position and the mirror-down position.

7 more elements

Dependencies are inferred from the claim text.

Mirror driving device

Life of this patent

Mirror driving device

Life of this patent

Abstract

Claims13