Electric cylinder device and brake fluid pressure control device

Abstract

As an example, an electric cylinder device according to an embodiment includes a housing provided with a cylinder, a piston disposed inside the cylinder, a rotating member that rotates about a rotational axis, a linear motion member attached to the rotating member so as to move in a first direction along the rotational axis or a second direction opposite to the first direction according to rotation of the rotating member, the linear motion member pushing the piston so as to reduce a volume of a liquid chamber of the cylinder by moving in the first direction, and a first engaging portion provided at the piston, a second engaging portion that is provided at the linear motion member and contacts the first engaging portion to restrict a separation of the linear motion member from the piston in the second direction.

Dependencies are inferred from the claim text.