| 摘要 |
The present invention relates to a hinge device of a tempered glass door capable of controlling speed for each rotation angle by having a first passage and a second passage on a body to control a rotation speed, being easily and safely opened and closed, bearing heavy load of a glass door, and stopping an open door. The hinge device having the center of rotation of a tempered glass door comprises: a casing buried under a door frame; a body which is installed inside the casing, has a fluid chamber filled with fluid, and has the first and second passages and a hold passage to make the fluid to successively flow according to the rotation angle of the door; a spindle which is installed on the casing and connected with a lower arm provided on a lower side of a glass door; a cam which is installed in the body and rotated by being connected with the spindle when the glass door is opened and closed; a main piston which is provided on one side of a connecting member having a front end attached to the cam and moved when the cam is rotated; and an end plug which has a second piston which supplies the fluid to each passage, successively opens and closes the first and second passages and the hold passage, and moves along with the main piston. The hinge device of a tempered glass door supplies the fluid to each passage by moving the main piston and the second piston according to the opening and closing angle of the glass door. |
