SU1514891A1 - Door lock - Google Patents

Abstract

The invention relates to clamping devices and makes it possible to increase the reliability of a lock. The lock contains the outer and inner handles, the bolt, the locking cam, interacting with the bolt. In the inner handle there is a spring-loaded liner with a radial protrusion on the inner end. In the outer handle is installed in the sleeve cylinder mechanism with a swivel core. When the rotary core of the cylinder mechanism is rotated to one of two fixed positions, the outer and inner handles interact and their kinematic connection with the bolt. 6 Il.

Description

The invention relates to staples and can be used in construction and transport.

The aim of the invention is to increase reliability.

Figure 1 shows a longitudinal section through a lock with an incompletely inserted key ;; Fig. 2 is a section A-A in Fig. 1, the bolt is in the position of the pushed-in latch; fig. 3 - the same, the bolt is in the position of the extended bolt; Fig. 4 is a sectional view BB in Fig. 2, the key is fully inserted into. cylinder mechanism; in FIG. 3 — node I in FIG. 3, the cylinder mechanism is rotated by a key 180; figure 6 - section bb In figure 5.

The lock contains a bolt 2 spring-loaded 3 in the housing 1. A hollow cam 4 communicates with the bolt 2, which is permanently connected to the inner handle 5. A sleeve 6 is mounted in the cavity of the locking cam 4 and fastened in the cavity of the outer handle 7. In the figured the hole of the inner handle 5 is installed insert 8 with a radial protrusion 9 at the end. The insert 8 is spring-loaded by the spring 10 and is able to move axially in the figured hole of the axis of the handle 5 under the action of the rotary cam 11, as well as from the pressure of the end of the key 12 when fully inserted into the cylinder mechanism 13, located in the axial figured hole of the sleeve 6 and interacting with her. The sleeve 6 and the rotatable core of the cylinder mechanism 13 have grooves c and d at the ends, the combination of which, when the rotary core of the cylinder mechanism 13 is rotated, allows the protrusion 9 on the spring-loaded insert 8 to engage with the slots c and d. Crossbar 2 performing the function

SP

(X

f

315

The bolts 14 are spring-loaded with a spring 15. The inner pytJKa 5 and the outer handle 7 co-operate with the locking cam 4, the sleeve 6 and are hinged by means of figured springs 16 in the openings of the rims 17 mounted on the door flap. The bolt 2 locks, enters the aperture of the striker 18 mounted on the door frame.

The lock works as follows When the door is closed due to the force applied to the sash. on the latch (see Figures 1 and 2) - ri- | gel 2, spring loaded | 3, slides along the inclined surface of I latch bar 18, is recessed into housing 1 and when combined: With an opening in the striker 18, under the action of the spring 3 is extended from the housing 1 up to the stop in the latch 14.

i Opening the door closed on the I latch is performed by turning I of the locking cam 4 counterclockwise: arrows (as shown in Fig. 2) from the force applied to the inner handle 5. The bolt 2 is disengaged from the opening of the locking bar 18 due to the interlocking - - The projection on the cam 4 iC by the apadins on the bolt 2, the return of the bolt 2 to the closed locking position (Fig. 2) is performed by the disengagement of the spring 3, and also due to the pressure of the figured springs 16 on the shaped grooves in hub handles 5

; And 7.

When the door is closed on the bolt (see Figures 2 and 3) by turning the locking cam 4 clockwise (as shown in Fig. 2) from the force applied to the inner handle 5, the bolt 2 moves to the position of the extended bolt, as shown in Fig. 3 , due to the interaction of the protrusions on the locking cam 4 with depressions on the bolt 2. With this, before moving the bolt 2, the locking cam 4 releases the bolt 2 from locking with the spring-loaded lock 14 and in the raised position the bolt 2 again locks with the spring-loaded lock 14. At the same time, the bolt 2 is locked in position ii vschvinutogo for owl is accomplished by abutment to start locking cam into the cavities 4 on the girder 2, the state of the lock

5 0 5

0 5 g

0

when the bolt is closed, it is shown in FIG.

The movement of the bolt 2 from the closed bolt position to the closed latch position is carried out in the reverse order.

The outer handle 7, located outside the lockable room, is permanently associated with the sleeve 6, which rotates freely in the axial hole of the locking hook 4 when aligned. depression d at the end of the rotary core of the cylinder mechanism 13 with a depression at the end of the sleeve 6, the radial protrusion 9 on the insert 8 under the action of the spring 10 enters the cavities c and d and kinematically connects the outer handle 7 with the internal handle 5. At the same time, all movements of the crossbar 2 carried by both handles.

When locking the lock from the outside of the room by turning the outer handle 7, the bolt 2 moves to the closed bolt position (see FIG. 3). after which the key 12 through the keyhole in the hub of the outer handle 7 (see FIG. 4) is inserted into the cylinder mechanism 13 all the way into the protrusion 9 on the insert 8, displacing it from the engagement with depressions c and d. Here, the fixed connection between the cylinder mechanism 13 and the sleeve 6 is broken in a known manner. Then, using the key 12, the rotatable core of the cylinder mechanism 13 is rotated in the sleeve 6 to the opposite fixed connection between the rotatable core 4, the cylinder mechanism 13 and the key 12 is taken out from the keyhole. As a consequence, the depressions c and d at the ends of the rotary core of the cylinder mechanism 13 and the bushings 6 are not aligned (see FIG. 3) and the radial protrusion 9 on the insert 8, disengaged from the depressions, abuts under the action of the spring 10 into the ends of the sleeve 6 and the cylinder mechanism 13 (see Fig. 6) and cannot provide a kinematic connection between the outer handle 7 and the inner handle 5, while the outer handle 7 can be rotated without affecting the lock mechanism.

When unlocking the lock from the outer side of the room, the key 12 is inserted as far as it goes into the keyhole in the hub of the outer handle 7, rotates 180, and the valleys c and d on the ends of the rotary core of the cylinder mechanism 13 and the bushings 6 are aligned together after the key 12 is removed from the cylinder mechanism 13 (see Fig. 1), the protrusion 9 of the bush 8 under the action of the spring 10 is buried in the hollows c and d and the kinematic connection of the handles 5 and 7 is restored, after which the outer handle 7 by turning, opens the lock in the direction of unlocking.

By turning the cam 11, the protrusion 9 on the liner 8 is taken out of engagement with depressions c and d, as a result of which the kinematic connection between the inner 5 and outer 7 handles of the lock is broken and the mechanism can be controlled only by the inner handle 5 regardless of the position of the rotary core of the cylinder mechanism 13 turned from the outside of the door with the key 12, or the rotation of the outer handle 1, i.e. The cam 11 is the drive of the device that prevents unlocking and destruction of the lock from the outer side of the door.

Claims (1)

Invention Formula A door lock comprising a housing, a deadbolt, a cam associated with the deadbolt, a pivotally aligned and rotatable inner handle movable axially ABOUT 0 five a connecting element and a cylinder mechanism with an internal rotary core, means for interacting with a connecting element of an internal handle, a key for interacting with a cylinder mechanism, characterized in that, in order to increase reliability, it is provided with an external handle with a cavity that is rotatable on the lock body in which the sleeve inserted into the lock is fixed, the cylinder mechanism is installed in the sleeve and has two fixed positions, the means for interacting with the connecting element are but. on the inner handle of the ends of the sleeve and the rotary core in the form of radial grooves, in the inner handle there is an axial shaped hole in which it is installed with a spring-loaded spring in the axial direction and inserted into the lock with a radial protrusion on its side facing cylinder mechanism butt, and the radial protrusion of the liner has a length not less than the radius of the sleeve and not more than the width of the radial grooves of the sleeve and the rotary core, and on the inside handle en associated with the liner and inserted. in the lock the rotary controlling ku-, lacquer. eleven 17 sixteen 18 ipue.i / I-A sixteen 18 cpus.3 /four (rig 5 srigL 4 8-B AT f (y (rig.b