CS201680B1 - Suspension of the swinging door - Google Patents

Description

( ⁵⁴ ) Swing door hinge

BACKGROUND OF THE INVENTION The present invention relates to a hinged door hinge which provides a constant resistance when the door is opened. It automatically resiliently stabilizes the hinged door in the open and closed positions in the other direction.

Previously known swing door hinge designs use two torsion springs, the anti-e torque of which maintains the swing door in the closed position. This arrangement has a disadvantageous course of torque since it generates the greatest moment in the open position of the door and the least moment in the closed position of the door. In this door position, it is desirable that the torque be greatest to prevent the door from automatically opening by drafts. Another disadvantage of the hitherto known embodiment is that the locking in the open position must be carried out by an additional device. This device. As well as the hinged hinges on the sides of the door. Also the noise of these hinges is considerable.

These drawbacks are overcome by the swing door hinge according to the invention. Basically, the pivoting pin is provided with a cam which is locked in the closed position of the door by the pressure of two pulleys whose axes of rotation limit the base of an isosceles triangle at the apex of which is the pivoting pin of the door. The shape of the cam is symmetrical according to the height of the isosceles triangle and its radius ee continuously increases to both sides from the axis of symmetry.

201 000

A cambering angle that forms the cam e eee radius of symmetry. The degree of cam radius increase is given by the stability of the torque exerted by the pressure acting on the cams during door opening. In order to increase the locking position in the closed position of the door, the end is provided with cut-outs in which both rollers engage. When the door is pivoted from the closed position ee always moves one roller away from the cam and the other roller pushes the door back to the closed position by pressing the cam. The rollers are mounted in the bracket e by a spring, the force of which can be varied by raising the bias.

An advantage of the invention is the automatic resilient arrest in both the closed, open position. The locking force can be adjusted both by the depth of the slots in the cam and by the force of the compression spring. A further advantage is the constant resistance when opening the door over the entire range between the two locking positions. The dimensions of the Jeou swing hinge are small so that the entire hinge can be hidden in the horizontal part of the door frame. Noiseless operation and simple design and production are also advantages.

An exemplary embodiment of a hinged door hinge according to the invention is shown in the accompanying drawing, in which Fig. 1 is a front view and Fig. Z is a partial sectional plan view.

The door 1 is rigidly connected, for example by means of pins 2, and a pin which rotates in the housing 4 of the base plate 5. The pivot pin 3 is rigidly connected to a cam 6 on which the rollers 7, 8 rotate ee in the holder 9, The heights of the isosceles form an oeu symmetry of the cam 5 whose radius ee continuously increases to both sides from the oey symmetry with an increasing ee angle that forms the radius and the symmetry axis. The degree of cam radius increase 6 is given by the torque stability exerted by the pressure of one of the rollers 7, 8 during door opening. The cam 6 is provided with stops 10, 11 limiting the opening of the door and notches 12, 13, 14, 15 into which the rollers 7, 8 fit in the closed and open position of the door. The holder 9 is rigidly connected to a rod 18 slidably mounted in housings 17, 18 which are attached to the blanket 5. A pressure spring 19 is mounted on the rod 16 and a fixed support 21 e is displaced by a sliding support 20. The base plate 5 is screwed to the horizontal part of the door frame 24.

The swing door design described above allows both the self-resilient locking of the door in the closed and open position, as well as constant resistance during the opening of the door and its noiseless automatic closing. Due to its small dimensions, the hinge can be engraved in a horizontal, metal frame or wooden floor, and is suitable for both wooden and metal doors.

Claims (6)

PLEASE INVENT Swinging door hinge, characterized in that the pivot bolt (3) is firmly engaged by a cam (6) on which the rollers (7, 8) rotate and in a holder (9) to which a rod (6) is attached 16) and slidably mounted in housings (17, 18) mounted on deats (5) attached to the door frame (24). Swinging door hinge according to claim 1, characterized in that the shape of the cam (6) is symmetrical with respect to the height of the isosceles triangle, at the apex of which o and the pivot pin of the door (3) are limited. Swinging door hinge according to one of Claims 1 and 2, characterized in that the cam radius (6) ee continuously increases not both sides from the angle o of symmetry with increasing angle that forms the radius and axis of symmetry of the cam (6). 4. The swing door hinge according to items 1, 2 and 3, characterized by. That the radius of cam curvature (6) at each point of the cam circumference (6) is given by the constant moment of the radial component of the spring compressive force (19) relative to the cam rotation axis (6). Swinging door hinge according to one of Claims 1 to 4, characterized in that a pressure spring (19) is provided on the rod (16), provided with a fixed support (21) at one end and a sliding support (20) at the other end with a control nut. 23 / and lock nut / 22 / » 6. The swinging door hinge according to claim 1, characterized in that the cam (6) is provided with bumpers (10, 11) for limiting the angle of opening of the doors and notches (12, 13, 14, 15) into which the rollers (7) engage. , 8 / in the closed and open position of the door.