DE45043C - Door locking device with automatic locking device - Google Patents

Description

IMPERIAL

PATENT OFFICE

CLASS 68: Locksmith.

The present invention is characterized in that slamming the door by a braking device that comes into effect shortly before its end, which from one acting on the surface of an eccentric or hebaum-like organ Brake rail exists, is prevented.

Here, a door locking device is used, which consists of one that is opened while the door is being opened the door consists of an automatically tensioned spring at a predetermined point . the closing movement of the door is released, so that as a result of the spring action this Closing the door ended respectively. can be supported.

Fig. Ι shows a front view of the door sleeper and door locking device when the door is closed,

Fig. 2 is a top view of the same,

3 shows a top view of the device with the door almost closed;

Fig. 3a is a front view of the same and

4 is a top view of a modification of the apparatus;

5 shows a diagram of the position of the organs according to FIGS. 3 and 3a.

The door locking device consists of a buffer A rotatably mounted in the stop C and a resilient rail B, which receives the material of the buffer at a desired point of the door's closing movement. The spring D seeks to turn the buffer in the direction indicated by the arrow so that the buffer, in its rest position, presents its greatest radius to the brake rail B when it comes into contact with it.

The resilient rail B lies in its middle part against the outwardly acting helical spring b ¹ and is held in front of it by the head of a screw b ² which is loosely passed through a hole in the rail B and through the strong helical spring έ ¹ and is screwed either on the door wall or on the door, which part then also carries the brake. A second screw b ^% is loosely inserted through a hole at the end of the rail B and is fastened to the same part (door or cover).

With the aid of the screws b ² and b ^s , the rail B can be given any desired inclined position relative to the buffer. In the case of a less great inclination, the buffer surface slides more easily on the brake rail and there is less resistance to the closing movement of the door; if the rail is in a steeper position, the buffer surface slides less easily, so that the closing movement of the door has more resistance to overcome.

During the action of the door locking device, the buffer is rotated about its axis against the force exerted by the helical spring D, so that when the door is opened so wide that the buffer and the brake come into contact, the tension of the spring D turns back Causes buffers on its axis in the normal position,

in which it is brought to a standstill by the adjusting screw α at its stop a ^1. In the arrangement shown in the drawing, the screw a is screwed into the rear part of the buffer, while the stop a ¹ protrudes laterally from the angle C. Of course, the screw can also be attached to the bracket, while the stop can be attached to the back of the buffer. By changing the protrusion of the adjusting screw α , the radius of that part of the buffer which is to come into contact first with the brake is determined and thereby the size of that part of the door closing movement is changed during which the inhibition takes place.

This setting, which is permissible between certain limits, enables a and the same door locking device for doors of different weights.

The brake rail is adjusted by means of the screws b ² and b ³ so that when the door is completely closed the free end of the brake rail assumes its normal position and exerts little pressure on the buffer.

To avoid noise and to reduce the frictional resistance of the brake against the buffer to increase, it is advisable to provide the buffer surface with a leather covering, which can also be placed on the surface of that part of the brake rail, against which the buffer creates. The leather covering on both parts is not excluded to attach.

In the drawing, the buffer surface is covered with a strip α ² made of leather or another suitable material.

The door lock apparatus presupposes the presence of a force which enables the closing movement who seeks to call the door. This force can be produced by a suitable door spring; it recommends but, in connection with the door locking device and the door spring mentioned a second to use the closing of the door with a supporting spring.

This second spring is automatically tensioned at the beginning of the door opening and retains its Tension until it is released at a predetermined point of the door's closing movement after which it utters a force which supports the closing movement of the door and leads to the end.

The additional closing spring E is arranged with its axis in a plane parallel to the plane of movement of the bent lever F. At one end it is connected to the adjusting screw e and at the other end to the lower part of the lever e ^x , the upper end of which is connected to the shorter arm / lever F by the arm G bent in the shape of a hook. The concave side of the curved arm f ^{1 of} the lever F rests against the roller H during the first part of the opening movement of the door.

As a result of this application, the lever F is rotated about its pin F ¹ and the hinge pin g, to which arm G is connected, swings in an arc around F ¹ until the hinge g is in the vertical plane χy laid by the central axis of the spring E, Fig. 5, falls into it, which happens when the door has opened so wide that it shows the end of the curved arm f ¹ ! the roll H has withdrawn, as indicated in FIG.

In this dead center position, the spring E remains tensioned and does not exert any force to close the door until, at a certain point in the closing movement of the door, the convex side of the curved arm f ¹ comes into contact with the adjustable stop /; This brings the lever F out of the dead center position, so that the now released spring E presses the concave side of the arm / ¹ against the roller H and tries to close the door.

In the arrangement shown, the stop / a simple adjusting screw, by adjusting it in a suitable manner, that point in the closing movement of the door can be changed at which the spring E is released and takes effect.

Since the spring E comes into effect only before the door is closed, it is assumed that a spring or some other such organ is used which gives the door the initial closing movement. In the drawing it is indicated that this initial closing movement is produced by the strong spring K , one end of which is connected to the door, the other end of which is connected to the door wall.

The drawings, FIGS. 1, 2 and 3, show the brake on the door wall, the buffer and the spring supporting the closing of the door and its lever attached to the door. The position of these parts can also be reversed without deviating from the essence of the invention, that is, the buffer A, the additional spring E and the lever F can be attached to the door wall, while the brake B and roller H can be attached to the door, as in this case is indicated in FIG.

Claims (2)

Patent claims. ■ i. A door locking device with automatic locking device, characterized by a resilient, inclined rail B on the door wall or on the door and a spring-loaded rail the buffer (A), adjustable in the size of its rotary movement, on the door (Fig. 1, 2 and 3) or on the wall (Fig. 4), which, depending on the inclination of the rail B, slides more or less easily on it and thereby regulates the closing of the door. 2. In the automatic closing device, equipped with a main closing spring K , which works with this locking device, the arrangement of an additional spring E and the parts moving this spring, lever e ¹ , arm G and the curved double lever F, which parts open the spring E by means of roller H at the door Tense and hold taut and release when the door is closed by the adjustable stop / just before the door closes, with spring E and parts e ¹ , G, F on the door and roller H and stop / on the walls (Fig. 1, 2 and 3) or vice versa (Fig. 4) can be arranged. 1 sheet of drawings.