Abstract: Providing an overturn preventing device which can be easily mounted at an appropriate inclination angle. The overturn preventing device includes a damper, a pair of bases, and an angle regulator. The damper is mounted between a top surface of a piece of furniture installed on an installation surface and a ceiling. Both ends of the damper are respectively coupled to the bases so as to be rotatable about respective rotation axes. The first base abuts against the top surface of the furniture and the second base abuts against the ceiling. The angle regulator is attached to the first base. The angle regulator regulates an inclination angle of the damper.

Abstract: Providing a damper which exerts a damping force in an entire stroke range and an overturn preventing device which can successfully prevent an article from overturn by equipment of the damper. The damper includes a cylinder, a rod guide, a piston, a rod, and a cylindrical member. In the damper, a hydraulic fluid and a compressed gas are enclosed in the cylinder. The cylindrical member regulates a position of the piston so that the piston is immersed in the hydraulic fluid enclosed below the gas in a state where a bottom of the cylinder is located lower than an opening and the rod protrudes upward from the cylinder and where central axes of the cylinder and the rod are inclined at a predetermined angle with respect to a horizontal plane.

Abstract: Providing an article equipped with an overturn preventing device, which can add an overturn preventing function to the article itself and can reduce work burdens and management burdens at the time of the mounting. A piece of furniture includes a furniture body to be disposed between an installation surface and a ceiling at a time of installation and an abutting member to be disposed between the ceiling and the furniture body at the time of installation. The furniture further includes an operating part having a damper having two ends one of which is coupled to the furniture body and the other of which is coupled to the abutting member.

Abstract: Providing an overturn preventing device in which a plurality of dampers can be mounted between a top surface of an article and a ceiling and which can suppress increase in working man-hour and increase in an installation space. The overturn preventing device includes a plurality of dampers mounted between a top surface and a piece of furniture installed on an installation surface and a ceiling. The dampers each have first and second ends and all of the first ends are coupled to the article-side base. The second ends of the dampers are coupled to one or a plurality of ceiling-side bases.

Abstract: Providing a construction that can allow a ceiling side base to be relocated easily even after the overturn preventing device has been mounted between a top surface of an article and a ceiling. A grip member is attached to an overturn preventing device including a damper to be mounted between the top surface of the furniture and a pair of bases respectively connected to both ends of the damper. One of the bases abuts against the top surface of the furniture and the other base abuts against the ceiling.

Abstract: Providing an overturn preventing device which can easily be mounted between a top surface of an article and a ceiling. The overturn preventing device includes a damper, a pair of bases and a fixing cord. The damper is mounted between a top surface of a piece of furniture installed on a floor and a ceiling. The bases are respectively coupled to both ends of the damper. The first base abuts against the top surface of the furniture, and the other base abuts against the ceiling. The fixing cord holds the damper in a contracted state in which the damper has a desired length.

Abstract: A single cylinder type hydraulic shock absorber for a vehicle (100) includes a cylinder (1), a free piston (2) that is inserted slidably into the cylinder (1) and delimits a fluid chamber (7) and a gas chamber (8) in the cylinder (1), a piston (3) that is inserted slidably into the cylinder (1) and delimits the fluid chamber (7) into two pressure chambers (7a, 7b), a rod (4), one end of which is connected to the piston (3), and an elastic member (9) that is accommodated in the gas chamber (8) and biases the free piston (2) in the direction of the fluid chamber (7). The elastic member (9) is set such that a spring constant thereof increases during contraction.

Abstract: A shock absorber (100) for suppressing vibration in a vehicle includes a valve disk (1) that delimits the interior of a cylinder (40) in which a working fluid is sealed; a first passage (2a), a second passage (2b) and a third passage (2c), which are disposed in series so as to connect pressure chambers (41, 42) delimited by the valve disk (1); a valve body (10) that selectively opens the first passage (2a) and the second passage (2b); a biasing member (15) that biases the valve body (10) in a direction for closing the first passage (2a) against the pressure in one of the pressure chambers (42); and a bypass passage (10a) that connects the first passage (2a) to the third passage (2c) when the valve body (10), having displaced in accordance with the pressure in the one pressure chamber (42) so as to open the first passage (2a), displaces further so as to close the second passage (2b).

Abstract: A shock absorber (100) for suppressing vibration in a vehicle includes a valve disk (1) that delimits the interior of a cylinder (40) in which a working fluid is sealed; a first passage (2a), a second passage (2b) and a third passage (2c), which are disposed in series so as to connect pressure chambers (41, 42) delimited by the valve disk (1); a valve body (10) that selectively opens the first passage (2a) and the second passage (2b); a biasing member (15) that biases the valve body (10) in a direction for closing the first passage (2a) against the pressure in one of the pressure chambers (42); and a bypass passage (10a) that connects the first passage (2a) to the third passage (2c) when the valve body (10), having displaced in accordance with the pressure in the one pressure chamber (42) so as to open the first passage (2a), displaces further so as to close the second passage (2b).

Abstract: A single cylinder type hydraulic shock absorber for a vehicle (100) includes a cylinder (1), a free piston (2) that is inserted slidably into the cylinder (1) and delimits a fluid chamber (7) and a gas chamber (8) in the cylinder (1), a piston (3) that is inserted slidably into the cylinder (1) and delimits the fluid chamber (7) into two pressure chambers (7a, 7b), a rod (4), one end of which is connected to the piston (3), and an elastic member (9) that is accommodated in the gas chamber (8) and biases the free piston (2) in the direction of the fluid chamber (7). The elastic member (9) is set such that a spring constant thereof increases during contraction.

Abstract: A hydraulic shock absorber comprises a piston 8 fixed to a tip end of a piston rod 1 within a cylinder 15. A port 7 that causes working oil to flow from an oil chamber R into an oil chamber P in accordance with an expansion operation of the piston rod 1 is formed through the piston 8. An expansion damping force generating valve 9 is provided on the oil chamber P side of the piston 8 to apply resistance to the outflow of working oil through the port 7. A defining member 14 keeps the distance between the piston 8 and a nut 13 that is screwed to the piston rod 1 penetrating the piston 8 constant. By disposing the defining member 14 on the outer side of the expansion damping force generating valve 9, ease of assembly and design freedom are ensured in the damping force generating mechanism.