RU2024719C1 - Code lock - Google Patents

Abstract

FIELD: locking of doors. SUBSTANCE: code lock comprises hollow body with slots on face cover for control handles and for dialing, locking member in the form of bolt installed in body with a provision for longitudinal motion and having projections, control handle and sectional code discs with slots on internal surface for interaction with bolt projections. Installed between face cover of lock and sectional code discs is a shutter provided with control handle, and slots. Besides, the body accommodates additional locking member installed parallel with the first one so that its projections are capable of interacting with the cutouts of sectional code discs. The latter are disposed between the bolts so that their axes are perpendicular to bolt axes and have hollows for unimpeded travel of bolts. Locking end surfaces of bolts are provided with blocking plates. EFFECT: improved design. 4 dwg

Description

 The invention relates to hardware.

 Known code automatic lock, made on the basis of the cipher suite module (1). The cipher suite module includes a rod with locking tabs and a limit stop placed in brackets with the possibility of longitudinal movement, one of the ends of which is designed to interact with the lock control. Rotary code disks are installed on the rod with code marks on the outer surface and a radial slot for the passage of the protrusions of the rod on the inner surface of each code disk. The tool is equipped with a sleeve mounted on the rod, rigidly connected with a disk adjacent to it.

 Creating a variant of the code is carried out by turning the code sleeve associated with the adjacent disk, one character (number), which are printed on the code disks.

 The disadvantage of the lock made on the basis of the cipher suite module is its low reliability of locking. Since the real mechanism is performed with manufacturing tolerances, when the rod is moved to the unlocked side (with the lock closed), one of the locking protrusions will touch the closest code locking disk to it first. By turning this disk sequentially from label to label, you can feel the slot of the passage of the rod. Thus, it is possible to "touch" sequentially select the location of each code disk required for the passage of the locking rods.

 Known combination lock (2), selected as a prototype. This lock contains a hollow body with slots and a bolt mounted in the housing with the possibility of longitudinal movement and having protrusions and a control handle. The bolt contains composite code disks with slots on the inner surface for interaction with the bolt protrusions. To eliminate the possibility of selecting a “touch” code, the lock is equipped with a “shutter” placed between the case and the composite code disks and made in the form of a rotary sleeve covering the code disks and having windows for providing code dialing and a control handle. Open access to composite code disks corresponds to a fixed deadbolt position.

 The disadvantage of this combination lock is the low reliability of its locking. By applying extra force to the locking part of the bolt, you can push it into the lock, i.e. open without opening the mechanism. In addition, the lock can be opened by depressing the door jamb (since the design of the lock involves a short locking part of the deadbolt).

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

 This goal is achieved by the fact that in the code lock containing a hollow body with slots for control handles and providing a code set, a locking element in the form of a deadbolt mounted in the body with the possibility of longitudinal movement and having projections and a control handle, composite code disks with slots on the inner surfaces for interacting with the bolt protrusions, as well as a “curtain”, placed between the front cover of the lock and code disks, equipped with a control handle fixed to it and slots in the mouth An additional locking element has been updated. The latter is installed parallel to the first and with the possibility of interaction of its protrusions with slots of composite code disks. Composite code disks themselves are made with recesses to ensure the movement of the bolts, are placed between the bolts, and their axes are perpendicular to the axes of the bolts. Each of the bolts has a blocking plate at the end of the locking part.

 The implementation of the lock with two deadbolts, having locking plates at the ends of the locking part, allows for reliable locking, since the possibility of opening the lock by breaking is excluded.

 In addition, reliability is enhanced by the use of two deadbolts, which are opened by separate installation of the code.

 Comparison of the claimed solutions with the prototype revealed the distinguishing features that determine the compliance of this solution with the criterion of "novelty."

 When comparing the claimed solution not only with the prototype, but also with other well-known technical solutions, no solutions having similar characteristics were found, which allows us to conclude that the technical solution meets the criterion of "significant differences".

 Figure 1 presents the combination lock, General view; figure 2 is a section aa in figure 1; figure 3 is a section bB in figure 1; figure 4 - section bb in figure 3.

 The combination lock contains a hollow body 1, in which are installed parallel to each other and with the possibility of longitudinal movement of the bolts 2 and 3. Both bolts have protrusions 4 and are equipped with control handles 5,6, respectively attached to them. The ends of the locking part of the bolt have locking plates 7. Composite code discs 8 are installed between the bolts 2 and 3 so that their axes are perpendicular to the axes of the bolts. Each composite code disk 8 has a slot 9 on the inner surface for interaction with the protrusions 4 of the bolts 2,3 and a recess 10 in the middle part to ensure the progress of the bolts 2,3.

 Between the front cover 11 of the lock and the code disks 8 there is a “shutter” 12, made in the form of a plate and having slots 13 for providing a code set (access to the code disks in the open state) and slots 14, providing a reciprocating rotation of the bolts 2.3 s using the control knob bolts 5.6. "Shutter" 12 is equipped with a control handle 15, mounted on it. Slots 16 and 17 on the front cover of the case have the same purpose as, respectively, the slots 13 and 14 on the “curtain”. The slot 18 on the front cover of the housing is made under the control handle "curtain" 15.

 The castle operates as follows.

 To unlock the lock, use the shutter control handle 15 to open access to the composite code disks, insert the key into the slot 16 of the first code disk so that the ledge on the key falls into the slot 16 and turn the key until its mark coincides with the corresponding code on the front cover set the code of the upper deadbolt for the first code disk. Further, it is similar to set the upper deadbolt code for the remaining code disks. In this case, the protrusions 4 of the upper bolt become opposite the slots 9 of the composite code disks 8. The “shutter” 12 prevents the lock from being opened in this position. It is necessary to close the “blind” 12, thus providing access to the control handle 5 of the upper deadbolt. Next, you need to turn the upper bolt 2 with the control handle 5 until it stops in the vertical direction and move it in the horizontal direction until unlocked. The ledges of the bolt 2 at the same time fall into the slots of the composite code disks 8 corresponding to the bolt 2, allowing free movement of the bolt 2 in the horizontal direction due to the notch 10 between the rings of the composite code disk.

 After opening the upper bolt, it is necessary to sequentially insert the key into the slot 13 of the front cover and set the code of the lower bolt. Next, close the "blind" 12, turn the bolt 3 using the handle of the bolt 6 and open it. The castle is open.

 Closing the lock is carried out in the reverse order. At the same time, the order in which the deadbolt code is entered does not matter. In the closed state, the plates 7 at the ends of the locking part of the bolts 2,3 block them due to the displacement relative to the lining window on the door jamb.

 This implementation of the lock allows, in comparison with the prototype, to significantly increase the reliability of its locking due to the use of two deadbolts, which are opened by separate installation of the code, and the possibility of locking the deadbolts, which excludes their opening by cracking.

Claims (1)

 A CODE LOCK, comprising a hollow body with slots on the front cover for the control handles and providing a code set, a locking element in the form of a deadbolt mounted in the housing with the possibility of longitudinal movement and having projections and a control handle, composite code disks with slots for interacting with the protrusions of the deadbolt, a curtain located between the front cover of the lock and the code disks, having a control handle fixed to it, and slots, characterized in that, in order to increase the reliability of locking, the lock is equipped with an additional locking element installed in the housing parallel to the first with the possibility of interaction of its protrusions with slots of composite code disks placed between the bolts so that their axes are perpendicular to the axes of the bolts, and having recesses to ensure the movement of the bolts, while the latter are equipped with locking plates located on the end of their locking parts.

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