Overturn preventing device

Abstract

Providing an overturn preventing device which can easily determine whether or not the damper is properly mounted. The overturn preventing device is mounted between a top surface of a piece of furniture (an article) and a ceiling. The overturn preventing device includes a damper. The damper includes a cylinder, a rod, a piston and a rod cover. The cylinder encloses a hydraulic fluid (operating liquid) and a gas. The rod is reciprocably inserted into the cylinder. The piston is slidably housed in the cylinder. A proximal end of the rod is coupled to the piston. The rod cover has one of two ends coupled to a distal end side of the rod thereby to be reciprocable together with the rod. The opening side end of the rod cover is located on a side of the bottom side end of the cylinder relative to the opening side end of the cylinder when the piston is immersed in the operating liquid.

1 . An overturn preventing device to be mounted between a top surface of an article installed on an installation surface and a ceiling, the device comprising a damper including:
 a bottomed cylindrical cylinder enclosing an operating liquid and a gas;   a rod protruding upward from one of two ends of the cylinder and inserted into the cylinder to be reciprocable in a central axis direction;   a piston to which a proximal end of the rod is coupled, the piston being housed in the cylinder to be slidable in the central axis direction; and   a rod cover which is cylindrical and extends on a central axis line of the rod, the rod cover having two ends one of which is coupled to a distal end side of the rod thereby to be reciprocable in the central axis direction of the rod together with the rod,   wherein the other end of the rod cover is located on a side of the other end of the cylinder relative to the one end of the cylinder when the piston is immersed in the operating liquid.   
     
     
         2 . The overturn preventing device according to  claim 1 , further comprising:
 a cylinder side base coupled to the other end of the cylinder and configured to abut against the top surface of the article; and   a connecting member connecting the cylinder side base or the cylinder and the rod cover with the damper being contracted.   
     
     
         3 . The overturn preventing device according to  claim 2 , wherein the cylinder side base is coupled to the damper via a rotating shaft rotatably supporting the damper;
 wherein the cylinder side base has a scale indicating an angle about the rotating shaft;   wherein the connecting member is rotatably supported by the rotating shaft thereby to be connected to the cylinder side base; and   wherein the connecting member has a pointer which is rotated with rotation of the connecting member to point to the scale.