SU1467151A1 - Combination lock - Google Patents

Abstract

The invention relates to secret locks and allows us to increase usability and reduce the dimensions of the lock. In the central opening of the lock body is installed c. Possibility of rotation and longitudinal movement of the shaft with emphasis on the outer end. The coaxial shaft is installed with the possibility of turning and longitudinal movement of the handle, having a recess under the shaft stop and a protrusion for engagement with clamps installed with the possibility of longitudinal movement in the depressions of the sprocket fixed on the shaft. A disk is attached to the inner end of the shaft with an asterisk, which serves to drop the code when interacting with the latches. 4 il.

Description

 The invention relates to secret locks without keys and can be used to lock objects with limited access by persons.

The aim of the invention is to improve the usability and size reduction.

FIG. I depicts a lock, longitudinal section; figure 2 - view And 4G.1; FIG. 3 shows a part of the sweep of the sprocket with its clips in various coded and uncoded positions; figure 4 - the latch.

A combination lock consists of a housing with a central bore; 2 mounted on the door 3. On the inner surface of the housing there are projections 4, between which sprockets 5 are located in the hollows of the sprocket 5; in the central opening of the housing there are design 7 with a protrusion 8 to interact with clamps when

.the cipher. The asterisk 5 is mounted on the square section of the shaft 9 and is fixed against the axial movement of the crankshaft 10. The shaft 9 is located in the central opening of the handle 7 and has an abutment 1I for transmitting the rotational movement from the handle. At the other end of the shaft there is a fixedly mounted disk 12 connected to the drive of the bolt of the lock 13, and the disk 12 serves as a travel stop for the latches 6 when dialing the code. In the transverse channel of the shaft 9 is placed a spring-loaded ball 14 for fixing the shaft 9 with the disk 12 in the position set code.

The clips 6 are made in the form of rectangular plates with a groove offset from the middle by an amount equal to half the stroke of the lock. This achieves that the same latches can be installed as in coded

6 (a) and 6 (c) (FIG. 3) and in the open 6 (b) and 6 (d) positions. Rotation from the handle to the shaft is transmitted by placing the stop 11 in the recess 15 of the handle during its longitudinal movement. The lock works as follows. Turn the handle 7 until the desired letter matches the end of the handle with the mark on the shaft face 9 (the handle protrusion 8 is facing the coded lock) and pushing the handle to move the lock all the way to the disk 12, while the lock groove is installed opposite the shoulder 4 of the case and does not prevent the asterisk 5 from turning. When pressing the open lock, the groove of which coincided with the protrusion of the case, the asterisk 5 locks. To open the lock, you must click on all coded locks without pressing any open retainer. After dialing the code, the handle 7, by pulling it towards itself, is fixed, placing in the recess 15 the shaft stop 11, and turning the handle 7 together with the shaft 9, the asterisk 5 and the drive bolt 13, opening the lock.

The code is reset by axially moving the handle 7 towards itself until it stops, and the disk 12 returns all the latches to their original position. When re-dialing the code, the shaft 9 together with the disk 12 returns to the dialing position.

; The code change is made at sn -: volume of the disk 12 by turning the required lock by 180, for which the protrusion 8 ru 5 0 5

about

five

the knobs push the retainer and insert it into the recess of the sprocket 5 with the other end.

The use of the proposed lock allows for considerable secrecy when locking.

Claims (1)

Invention Formula A code lock, comprising a housing with a central hole, a lid, code dialing means, including a shaft mounted in the central hole with the possibility of turning and longitudinal movement, an asterisk fixed on the shaft, and locking devices installed as long as possible and having grooves, means for resetting the code, including a disk fixed on the shaft coaxially with an asterisk, and a handle mounted coaxially on the shaft with the possibility of rotation and longitudinal movement and having on the inner surface there is a recess, and on the inner end there is a protrusion for interacting with clamps, which is different in that, in order to improve ease of use and size, the handle is installed in the central hole of the housing, and the disk is on the inner end of the shaft, while the surface of the housing is made a protrusion, and at the outer end of the shaft there is an emphasis for placing, respectively, in the slots of the retainers and recess of the handle when the lock is opened. .7 View/ f .2. one fixer Editor A. Shandor Compiled by I.Trigub Tehred A. Kravchuk Order 1177/25 Circulation 39 1 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Proofreader M.Musk Subscription