Abstract: The damper device is equipped with: a cylinder unit having a sliding inner wall surface; a piston unit, having a piston head, which has an outer diameter part that slides on the sliding inner wall surface of the cylinder unit, and divides the interior space of the cylinder unit into a first gas chamber and a second gas chamber, a rod extending from the second gas chamber side of the piston head, and a closed-end hole which opens toward the first air chamber side of the piston head and extends through the interior of the rod in the direction of the second air chamber; and a guide shaft affixed to the first gas chamber side of the cylinder unit and equipped with a tip part having an outer circumferential surface that slides on the inner wall surface of the closed-end hole of the piston unit.

Abstract: A carriage-body inclination device (30) has individual inclination units (112, 113) that are provided corresponding to air springs (22, 23), and a control unit (110). The individual inclination unit (112) can sufficiently execute supply or release of air to or from the air spring (22) by driving a control valve (40) and a large-capacity valve (170) using a height difference value which is a difference between a height instruction value provided by the control unit (110) and a height value obtained from a link-lever mechanism (24). The control valve (40) has a two-layer structure of a fixed sleeve (91), a control sleeve (90), and a spool (80). The control sleeve (90) is moved and driven by the link-lever mechanism (24) and a rotation-translation conversion mechanism (44). The spool (80) is moved and driven by a spool actuator (120) according to a set height value.

Abstract: A carriage-body inclination device (30) has individual inclination units (112, 113) that are provided corresponding to air springs (22, 23), and a control unit (110). The individual inclination unit (112) can sufficiently execute supply or release of air to or from the air spring (22) by driving a control valve (40) and a large-capacity valve (170) using a height difference value which is a difference between a height instruction value provided by the control unit (110) and a height value obtained from a link-lever mechanism (24). The control valve (40) has a two-layer structure of a fixed sleeve (91), a control sleeve (90), and a spool (80). The control sleeve (90) is moved and driven by the link-lever mechanism (24) and a rotation-translation conversion mechanism (44). The spool (80) is moved and driven by a spool actuator (120) according to a set height value.