Untitled record

Federtürschließer The subject of the invention is a spring door closer, in which on one of the parts (door frame or door) a forked, rotatably mounted and spring-influenced lever is mounted, which is arranged with an on the other parts, entering the fork slot pin o. The like. occurs when closing the door, the spring (blocking position) triggered and the door tightened, however, turned on opening the door of the fork lever in the receiving position and the spring is set in tension.

In contrast, the invention consists essentially in that is arranged at swing doors of the spring door closer on the narrower face of the door or in the door frame, the fork lever swinging is mounted swinging to both sides and is always influenced by him in the central position compelling springs.

The advantage of the subject invention is essentially due to its simplicity and reliability.

In the drawing, the subject invention is shown in two embodiments. Fig. I shows a side view, Fig. 2 shows a front view along line AB of Fig. I, Fig. 3 shows a similar view in a slightly modified version.

In the frame i, the door 2 turns to both sides. Across from. the hinge is in the frame i, fastened with screws, a housing 3, with a forked lever 4 is rotatably connected and in which two coil springs 5 ​​and 6 are mounted, with their free ends against the short lever arm of the fork lever q. to press. Pins 7 and 8 secured in the wall of the housing 3 limit movement of the free spring ends to the center of the housing.

In the fork-like part of the lever q. engages a fixed to the door 2 pin 9 with roller fo, so that the closed door is held by the said part under influence- the two springs 5 ​​and 6 in the center position. If the door is to one side, z. B. to the right, then takes the pin 9 with role fo the fork-like part of the lever q. against the Kraff of the spring 5 to this side with, in the indicated by dotted lines position, the end of the spring 5 against the front end of the lever q. to come to rest. The spring force acts in the direction of the pivot point of the lever q., So that it stops in this position, even if the door is opened further. The door is now free of any spring force, unless a special closing spring is still available. If this is the case or if the door is tossed by hand, the lever q will catch. the pin 9 with role fo on again, being pushed back by again under the force of the spring 5, which brings the door back to the middle position. When turning the door to the left, the same happens in the opposite direction.

It is also a very common evil in swing doors that they oscillate back and forth by a slight wind or draft, so go partially open and close, so that they do not fulfill their function as zugabschließende doors. The spring door closer according to the invention prevents this, especially when it is equipped with powerful springs, which in addition exert their greatest force on the door in its middle position, in contrast to the known spring door closers.

After Fig. 3, the springs 5 ​​and 6 do not act directly, but with the interposition of the articulated arms ii and i2, whose movement is limited by the block 13, on the lever q .. It is free in the execution of the springs 5 ​​and 6, which can press on any bearing points of the arms ii and 12.

Instead of the articulated arms ii and 12 but also leaf springs can be arranged, which are firmly clamped in its bearing point in a known and conventional manner, thereby achieving an additional spring action and the non-positive effect is increased.