SU1746897A3 - Lock closing mechanism - Google Patents

Abstract

Use: for locking locking devices. The mechanism includes a housing in which a spring-loaded slider with sockets and spring-loaded two shoulders with stops are placed. The closed position is provided due to the action of the spring, which pushes the slider up until it touches the eccentric with the lock shank. In this case, the levers of the levers, pressed by the springs, enter the slider sockets. The pressure key with its protrusions interacts with the levers and removes all the stops from all the nests of the slider. 8 il.

Description

This invention relates to devices that prevent unlocking of locks by an unauthorized person.

A locking mechanism is known, comprising a housing mounted in a sliding housing and a slider spring-loaded relative to it, located in the housing along the slider rotatable spring-loaded levers, each of which is provided with two stops for fixing the slider, and a pressure key with restrictive projections for their simultaneous interaction with levers and securing the release of the slider.

The purpose of the invention is to increase the reliability of locking.

The goal is achieved by the fact that in the locking mechanism of the lock, which includes a housing mounted in a sliding housing and a slider spring-loaded relative to it, located in the housing along the slider, swivel spring-loaded levers, each of which is provided with two stops for fixing the slider, and a pressure wrench with restrictive protrusions for simultaneous

they interact with the levers and unlock the slider, the levers are double-shouldered, the stops of each of them are located at its ends, and the slider has a pair of nests according to the number of levers, while the sockets of each pair are made at its opposite ends to ensure the approach of the stops of the levers when fixing the slider, and the pressure key has a limiter for its longitudinal movement to ensure simultaneous withdrawal of all the stops from the slider sockets when it is released

Figure 1 presents the mechanism, a general view: in figure 2. 3 - the same, without a cover, top view; FIG. 4 is a view A of FIG. 3; figure 5 - section bB in fig.Z; figure 6 - stops; Fig 7 - slider; Fig. 8 shows a variant of the location of the safety lock and the mortise lock.

The mechanism contains a plate 1 .. to one side of which the sleeve 2 is screwed by a nut 3, and on the other side the case 4 is attached, in which the spring-loaded slider 5 and the spring-loaded two-armed levers 6 on the axis 7 are placed. At the end of the slider, a swivel

cl

with

2

about

00

Yu

Vj

00

eccentric 8. which rests on the shank 9 tons of the latch 10 of the mortise lock 11. The slider 5 is spring-loaded 12. The levers are spring-loaded by springs 13 and provided with stops 14 and 15 for fixing the half fastener. To open the mechanism, a push key 16 is used, which is installed in sleeve 2 up to limiter 17 with its limiting protrusions 18. The slider has, according to the number of levers, a pair of sockets 19 and 20, made at its opposite ends to provide stops 14 and 15 of the levers.

The mechanism works as follows.

The mechanism is automatically installed in the initial - closed position due to the spring 12, which tends to push the slider 5 out of the housing 4 until the eccentric 8 touches the shank 9 of the lock 11. At the same time, the thrust levers 6, pressed by the springs 13. fixed by one end on the bracket 21, enter its backsides 15 in the rear sockets 20 sliders 5 and lock the mechanism. Moreover, the pin 21, moving in the groove 22, directs and limits the stroke length of the slider. In this position, the mechanism locks the latch of the lock and does not allow to unlock it (figure 2).

Unlocking is possible in two cases.

1. When the opening lock is inside the room. In this case, to open the lock, it is necessary to turn the eccentric 8 around the axis 23 of the slider 5 until the eccentric touches the shank 9 (FIG. 8) - the upper position of the eccentric is removed. At. this fuse no longer prevents the latch 10 from moving away and the lock opens,

2. When the lock is located outside the room. In this case, to open the lock, it is necessary to insert the key 16 into the vertical slot of the sleeve 2 to the limiter 17. At the same time, the protrusions 18 of the key press the two shoulders levers 6 and turn

each lever is separately around axis 7. Thus, the levers withdraw their rear stops 15 from engagement with the cushion 5. At the same time, in order that the front sockets 19 of the half bushes 5 do not lock it again, their action is limited by the stop 17 and the protrusions 18 of the key 16. When in this way all the stops 14 and 15 are removed from slots 19 and 20 of the slider 5, the mechanism is neutralized and the lock can be unlocked. In this case, the shank of 9 tons of gig of the latch 10 freely moves the half-clip 5. squeezing the spring 12 (FIG. 3).

Using this solution reduces the likelihood of unlocking the locks.

by unauthorized persons due to the presence of a group of two shoulders with locking lugs at both ends of each lever and the need to simultaneously remove all the lugs from engagement with the slider.

In addition, each stop (Fig. 6) can be performed in 25 variants, which provides a large number of combinations.

Claims (1)

Claims The locking mechanism of the lock, comprising a housing mounted in a sliding housing and a slider spring-loaded relative to it, located in the housing along the slider are rotatable spring-loaded levers, each of which is provided with two stops for fixing the slider, and a push key with restrictive projections for their simultaneous engagement with levers and securing the release of the slider, from that to those. that, in order to increase the reliability of locking, the levers are made with two shoulders, the stops of each of them are located at its ends, and the half-liner has a pair of sockets with 1 number of levers, and the sockets each pair is made at its opposite ends to ensure that the stops of the levers approach when the slider is fixed, and the pressure key has a limiter for its longitudinal movement to ensure simultaneous withdrawal of all the stops from the half-shells when it is released. Quit go g / to " 11 About CJ L- N % I J L. O) GO Yu-L s -A 4 -D- / i t & Јg 9 GLF 4ju  # - L№bLl l § 8 5 4 1 ff ABOUT Fig.8