SU1756513A2 - Lock - Google Patents

Description

The invention relates to staples and is an improvement of the lock according to auth. No. 1694833.

A lock is known, comprising a keyhole body C, a spring-loaded bolt with oblique teeth in the body and a valve in the form of a spring-loaded helical gear mounted parallel to the bolt and between it and the keyhole, and a pressure key with inclined drifts for interacting with the teeth of the bar and the flap .

The disadvantage of the known lock is the absence of fixing the bolt in the locked state. In addition, when moving the flap when unlocking the lock, it is possible to move the bolt by a certain amount due to friction between the flap and the bolt, which can make it difficult to unlock the bolt.

The purpose of the invention is to improve the reliability of locking

This goal is achieved by the fact that the lock is provided with a partition fixed in the housing between the bolt and the flap and having a key hole coaxially with the keyhole.

Fig 1 shows the lock in the open position; figure 2 - the same. in locked position; FIG. 3 shows a lock in a raised position; 4 is the same in the omitted state; figure 5 - the latch, the overall view (rotated 180 °); 6 - lock, isometry.

The lock includes a housing 1 with a keyhole 2, a spring-loaded bolt 3 with oblique teeth 4 and a valve in the form of a spring-loaded helical gear 5 mounted parallel to the bolt between it and the keyhole, and a pressure wrench 6 with inclined beards for interacting with the tooth mi bolt and damper. The lock is equipped with a partition 7 placed between the deadbolt and the flap, and the latch 8 of the deadbolt mounted on

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case. The key is made with a pusher 9 having a smooth area with a rounded end 10.

The retainer is made in the form of a spring-loaded rod, at the end of which, facing the bolt, a bevel 11 is made to interact with the pusher 9 of the key and the protrusion 12, and on the bolt the corresponding dimple 13,

The lock works as follows.

To open the lock, the push key b is inserted into the keyhole 1 of the housing 1. Its inclined smallts are engaged with the helical gear 5, and displaces it. At the same time, the end face 10 of the ejector 9 of the key b interacts with the bevel 11 of the retainer 8, the withdrawal of the protrusion 12 of the retainer from the depression 13 on the bolt. Upon further movement of the key, its barbs interact with the oblique teeth A of the bolt 3, moving it in the direction of unlocking. When the key is moved all the way, the bolt 3 is sunk into the body, unlocking the lock.

The lock is locked in reverse order when the key is removed from the keyhole.

Since the teeth of the bolt 3 and the laths 5 interact with the same key pins, they are made identical. Since the partition 7 is rigidly fixed in the housing 1, the movement of the rail 5 does not affect the position of the bolt 3, which increases the reliability of the lock.

From the inside, the lock is controlled by a handle fixed on the bolt, which is simultaneously a restriction on the bolt stroke.

Unauthorized unlocking of the lock through the keyhole with foreign objects is difficult, since the deadbolt 3 is blocked by the rail 5

Claims (1)

Invention Formula Castle Auth. No. 1694833, characterized in that, in order to increase the reliability of locking, it is provided with a partition fixed in the housing between the deadbolt and the flap and having a key hole coaxial with the keyhole of the housing. Fig 2. -J / 8 / 2 Fig. $ 6 Fig YU AT five