DE295378C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

Automatically closing door locks with one between the door latch and the Bolt-mounted blind trap when closing the door by means of an intermediate lever on the Acts are no longer new.

The parking device of these known locks does not allow the blind trap to put outside activity and to use the lock as an ordinary lock by the

ίο bolt is clamped with the same. Again other locks have the disadvantage that several Parking pins are required, with these pin holes far away from the key plate lie, the door has to be pierced several times, and a special one suitable for these pins Fitting must be arranged next to the key plate. According to the invention, these drawbacks are alleviated by the Drawing for example shown lock eliminated that the release latch with the help one between the keyhole and the follower in one and the same vertical range with them stored key nut is so reset that after one when resetting the If the guard locking device is temporarily tripped, the tripping trap does not Has more influence on the guard locking and the bolt is now permanently with the help of his Key can be closed forwards and backwards.

The subject of the invention is shown in an example in the drawing, namely Fig. ι shows a diagram of the lock with the associated strike plate, Fig. 2 is an interior view of the lock.

FIGS. 3 to ii show for better illustration the sake of the individual tumblers and intermediate levers partly in engagement with the Lock bolt, once in the open position, the second time in the closed position. The drawn Arrows' indicate the respective pressure direction of the springs acting on the tumblers at.

The handle follower α , like the latch δ, is completely independent of the lock bolt c in a known manner.

With the bolt c are tumblers d and f in engagement, of which the tumbler f is triggered when the latch g is pushed back by an intermediate lever β , whereupon the spring-loaded bolt c is thrown forward.

The bolt release latch g can be reset by a nut h to be turned by means of a key and then assumes the position shown in dotted lines in FIG.

Assume that the lock is on a house door and the door is locked is, the mode of operation is, provided that the bolt release latch g is set, so the trap g can come into operation, the following:

After you have pushed back the bolt c of the lock with the key, the door can be opened by pressing down the handle. The latch g, which is pushed back when the door is closed and, as can be seen from the drawing, does not engage in the strike plate, then snaps forward after the door is opened, just like latch b.

If the door is now closed, the latch δ engages in the strike plate of the lock, while the latch g is only pushed back. Here, the lifting cam g _x engages the arm e _{x of} the intermediate lever e , this and also the tumbler f are lifted and thereby the bolt c is triggered and pushed forward as a result of the spring action. Each of the two tumblers is one

ίο assigned different effect; The tumbler f manages the locking of the bolt c in every position, the tumbler d only has to hold the bolt in the closed position (end position), while the intermediate lever e is lifted when the latch g is pushed back and the tumbler f is inevitably carried along by the cam i and thereby the lock bolt c triggers and can snap forward.

When the blind trap g is pushed back, the intermediate lever is lifted up by means of the stops gj e _x , as already mentioned earlier. On the underside of the tumbler f sits a cam i, which engages in a recess e _{4 of} the intermediate lever β , so that when the lever e is lifted, the tumbler f is also lifted, whereby the lock bolt c is triggered and can be thrown forward.

Takes place for the temporary release of the tumbler f in that der'an the underside of the tumbler f cam located i, engaging the intermediate lever e in the recess e ₄ and is released during the return closing of the bolt serves for lifting the tumbler by means of the lever e, and enters the section e ₂ (Fig. 11).

The intermediate lever e has for this purpose an elongated slot e _a , which enables the intermediate lever when turning the key - that is, when closing it - is pushed to the side so far that the recess e _{4 of} the intermediate lever β the cam

Claims (1)

Patent claim: ken i passes with guard locking f without lifting the guard locking too. When the release latch is switched off, the cam i also assumes the position according to FIG. Ii. If the release latch is set to readiness again, a spring acting on the lever e restores the engagement of the recess e _i with the cam i . In Fig. 9, 10 and 11 the intermediate lever ■ is shown again with the tumbler for better illustration, namely Fig. 9 shows the tumbler, Fig. 10 the underlying intermediate lever alone, while in Fig. 11 both parts are superimposed and their interlocking is drawn at the moment when the intermediate lever is pushed to the side. However, if the lock is not to be locked when the door is closed or not to work as an automatically closing lock, the latch g is locked by means of a key and takes the position already mentioned above. Of course, the individual tumblers or intermediate levers can be used at the point of attack also be designed differently in such a way that a chubbing key can be used can. Automatically closing door lock with release latch for the bolt tumbler, characterized in that the release latch can be reset with the aid of a key nut (h) stored between the keyhole and the handle follower in one and the same vertical plane with them in such a way that after the tumbler has been temporarily released, the release latch has no effect the guard locking exercises more and the bolt can then be locked back and forth like an ordinary lock bolt with the help of its key. 1 sheet of drawings.