RU1831557C - Code lock - Google Patents

Abstract

Usage: for locking various objects. Summary of the invention: rollers are placed in the housing, each of which has an annular rim with a slot. Disks with a tooth and a groove are rotatably mounted in the holes of the bolt. Lugs are secured to the bolt to fit into the slots of the crown. On the case there are keys for the grooves of the disks. The bolt is spring-loaded and controlled by a transverse button. The bevel of the button interacts with the inclined wall of the through slot in the deadbolt. To change the code, a spring-loaded button with a step 12 is provided located in the longitudinal slot of the bolt. To increase the reliability of locking, the gap between the housing key and the disk is larger than the gap between the bolt protrusion and the outer diameter of the roller. 3 s.p. f-ly. 3 ill.

Description

The invention relates to hardware products.

The aim of the invention is to increase the reliability of locking, ease of use and simplification of design.

The invention is illustrated in the drawings, wherein FIG. 1 shows a lock in section; in FIG. 2 is a view A in FIG. 1; in FIG. 3 - roller and bolt ring in the code change position.

The combination lock comprises a housing 1 with guides and several holes, located in the guides of the bolt housing 2 with control means and holes, coaxial holes of the housing, rotary rollers 3 installed in the holes of the housing, each of which has an annular rim with slots 4, located in the openings of the bolt disks 5, having a groove 6 on one side and at least one radially directed tooth 7

on the other side, for placing it in the slots of the roller, mounted on the housing of the key 8 to place them in the grooves 6 of the disks when unlocking, latches for the angular position of the rollers, including elastic plates 9 mounted on the housing, and a stop 10. Lugs 11 are provided on the deadbolt to accommodate them in the slots of the rollers when unlocked. The gaps between the keys 8 of the housing and the disks 5 are larger than the gaps between the protrusions 11 of the bolt and the outer diameters of the ring crowns 3 The outer diameters of the ring crowns exceed the diameters of the holes in the bolt. The deadbolt stop is made in the form of a spring-loaded button with a step 12. In the deadbolt there is a longitudinal groove 13 for positioning the button and interaction of the deadbolt with the step 12. The distance between the opposite surfaces of the protrusion 11 of the deadbolt

with

Joint venture

ate 1

With

and tooth 7 of the disk is smaller than the inner diameter of the annular rim of each roller. The elastic plates 9 of the latches of the angular position of the rollers are mounted to interact with the slots 4 of the ring crowns. The bolt control means is made in the form of a transverse button 14 with a bevel 15. In the bolt there is a through slot with an inclined wall 16, and the button 14 is placed in the slot with the possibility of its bevel 15 interacting with the inclined wall 16 of the slot when locking. The bolt 2 is spring-loaded in the unlocking direction by the spring 17.

Combination lock operates as follows.

To lock, set the lock code and press the button 14. In this case, its bevel 15 acts on the inclined wall 16 and, compressing the spring 17, move the bolt 2 to the stop. Then, by rotating the rollers 3, they knock down the lock code and release the button 14. In this case, the spring 17 tends to return the bolt to its original position. However, the discs 5 abut against the keys 8 of the housing 1 and block the deadbolt. In this case, the protrusions 11 of the bolt partially enter into the slots of the 4 rollers. The lock is closed.

To unlock, push the button 14 all the way, the tabs 11 out of the slots 4, and by turning the rollers 3 set the lock code. In this case, the rollers 3, interacting with their slots 4 with the teeth 7, rotate the disks 5 and set them in a position in which their grooves 6 are located opposite the keys 8 of the housing. Then release the button 14 and the spring 17 moves the deadbolt to the stop in the button 10. The lock is open.

To change the code, it is necessary to push button 10 all the way down, while its ledge 12 is located opposite the bolt and it will additionally move to the depth of the ledge 12. In this case, the protrusion 11 and the closest tooth 7 are located inside the gear ring of each roller, i.e. the rollers will not disengage from the disks. After this, by rotating the rollers 3, a new lock code is set and the button 10 is released. Upon subsequent locking, the button 10 is automatically set to its original position.

When trying to select a code, probing is excluded, because protrusions 11 prevent rotation of the rollers while in the slot. When you start on button 14, communication with the deadbolt is lost. This is achieved due to the fact that the gap between the key 8 and the disk 5 is larger than the gap between the protrusion 11 and the outer diameter of the annular ring of the roller 3,

When turning, the rollers 3 are fixed by elastic plates 9. the ends of which enter the slot 4.

The lock has a simple structure and

convenient to maintain when locking, and changing the code.

Claims (4)

SUMMARY OF THE INVENTION 1. A combination lock comprising a housing with rails, a number of holes and dowels on one of the walls, a spring-loaded deadbolt with control means having openings coaxial with the housing openings and protrusions mounted in the openings in the housing guides housing rotary rollers, each of which has an annular rim with slots located in the holes of the bolt disks, each of which has a groove on one side to accommodate the keys of the housing unlocking and at least one longitudinally located tooth, made on its other side for placement in the grooves of the roller, latches of the angular position of the rollers, formed by elastic plates fixed on the body, and a deadbolt stop, in order to increase the reliability of locking ease of use and simplification of design, housing keys are made on its a wall located on the side of the disks and facing the surface of the bolt, the opposite surface with protrusions, the bolt is installed in the middle part of the housing with the possibility of placing its protrusions in the grooves of the rollers when unlocking, with a gap between each key of the housing and the side surface corresponding to it; the disk is larger than the gap between each protrusion of the bolt and the lateral outer surface of the corresponding annular crown of the roller in the closed position of the bolt, and the outer diameters of the ring crowns of the rollers exceed the diameters of the bolt holes, 2. The castle according to claim 1, characterized in that. that the bolt has a longitudinal groove, the bolt emphasis is formed by a spring-loaded button with a ledge placed in the bolt groove to contact its ledge with the groove wall, in this case, the distance between the surfaces of the protrusion of the bolt and the tooth of the disk, which are remote from one another, in the closed position of the bolt is smaller than the inner diameter of the ring rim of each disk. 3, The lock according to claim 1, with the fact that the elastic plates of the latches of the angular position of the rollers are installed with the possibility of placing annular crowns in the slots. 4. The castle according to claim 1, characterized in that. that the bolt control means is made in the form of a button with a bevel installed with the possibility of movement this bolt has a slot for accommodating a button, one of the walls of which is made inclined for contact with the bevel of the button when locking, and is spring-loaded perpendicular to the bolt plane, with a 5 direction unlocking.