RU2023124C1 - Code lock - Google Patents

Abstract

FIELD: devices for locking safes, doors of living and service rooms, etc. SUBSTANCE: code lock body has spring-loaded pushing rods with code hollows and orienting section and bolt with recesses. Located on each pushing rod is protective member in form of bead with stop end face which is located between code hollows shifted to one another along axis to thrust the edge of bolt pushing rod recess and to lock the pushing rod from axial displacement. Section, orienting angular position of each rod, is formed by recess located on inner end face of pushing rod and accommodating the end of flexible member spring-loading the pushing rod. EFFECT: higher efficiency. 4 dwg

Description

 The device is designed to lock cabinets, safes, doors of residential and office buildings, etc.

 The closest technical solution to the claimed object in its technical essence is a code lock containing spring-loaded pressure rods with code recesses and an orienting section, a reset tool, a deadbolt with grooves and a deadbolt control unit.

 In FIG. 1 is a cross-sectional view of a combination lock; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 - combination lock, longitudinal section; in FIG. 4 is a section BB in FIG. 3.

 In the housing there are pairs of pressure rods 1 (Fig. 1), with code recesses 2, thrust ends 3, grooves 4, ends of elastic elements 5, pressing pressure rods 1, bolt 6 in the code lock. The pressure rod 1 on the left is depicted in the initial position, and the pressure rod 1 on the right is depressed (with moving it to the stroke). The thrust end 3 of the push rod 1, located in its original position (left), is located above the upper surface 7 of the grooves 8 of the bolt 6.

 Both push rods 1, shown in this section, are located along the code recesses 2 in a position that does not interfere with the movement of the bolt 6 (for unlocking or locking). The ends of the elastic elements 5 are in the grooves 4 of the pressure rods 1 and orient their angular arrangement.

 In FIG. 2 shows a section AA showing the relative position of the pressure rods 1 with the code recesses 2 and the slots 8 of the bolt 6. In this section, the pressure rod 1 is in the pressed position from the top right, the rest are in the initial, unpressed position, the bolt 6 is in the position when its grooves 8 do not interfere with the movement of the pressure rods 1, when pressed on them (in the locked position).

 In Fig.3 shows a longitudinal (along the axis of the pressure rods 1) section, in Fig. 4 is a transverse section BB showing the relative position of the pressure rods 1 and the grooves 8 of the bolt 6, when the dead bolt 6 and the pressure rods 1 are in the initial, not pressed position. In FIG. 3 shows that the thrust ends 3 of the pressure rods 1 are in the same plane with the upper surface 7 of the slots of the bolt 6 and the pressure rods 1 do not have the possibility of axial movement when pressed on them. In addition, in FIG. 3 shows the location of the ends of the elastic elements 5 in the grooves 4 of the pressure rods 1. Shown in FIG. 4 pressure rods 1 along the code recesses 2 are located at the top left and bottom right - in the locking bolt 6 position (the edge of the groove 8 of the bolt 6 abuts against the surface of the pressure rod 1); upper right and lower left - in non-locking bolt 6 position.

 Code lock according to the proposed technical solution works as follows.

 In the locked combination lock, all the pressure rods 1 are in the grooves 8 of the bolt 6 and have the ability to move in the axial direction when pressed on them (figure 2). When the code is set, part of the pressure rods 1 along the code recesses 2 is in the locking bolt 6 position.

 To unlock the code lock are pressed according to the code and held pressed, those push rods 1, which held the bolt 6 in the "Locked" position. After that, all the pressure rods 1 along the code recesses 2 are in a position that does not lock the deadbolt 6, and do not impede the movement of the deadbolt 6 from the "Locked" position to the "Open" position, and vice versa (Fig. 1).

 When trying to determine the code of the locked lock by pressing the bolt 6 and alternately pressing the pressure rods 1, the edges of the corresponding grooves 8 of the bolt 6 reach the stop in those pressure rods 1 that hold the bolt 6 (according to the code) in the locked state.

Since the abutment ends 3 of all the pressure rods 1 are in the same plane as the surface 7 of the grooves 8 of the bolt 6, when you press any of the pressure rods 1, it abuts against the surface 7 of the bolt 6 with the abutment end 3 and cannot move. Therefore, it is impossible to determine the code lock locked alternately pressing the push rods 1 when loosing contact with the bolt 6. Change the code by turning the push rod 1 to ^180.

 This solution allows to simplify the design of the combination lock and to exclude the possibility of determining the code of the locked lock by alternately pressing the push rods 1 while the deadbolt 6 is pressed.

Claims (1)

 A CODE LOCK, comprising a housing located in the housing of the deadbolt with grooves on the side surface, spring-loaded pressure rods interacting with the deadbolt, each of which has code recesses diametrically arranged with an offset along the axis, an orientation section and a longitudinal groove made on the end of the rod located inside the housing , and fixing elements according to the number of pressure rods, made in the form of elastic plates, cantileverly fixed in the housing for contacting the free ends with the orienting sections of the pressure plates rzhnei, characterized in that, in order to increase secrecy and simplify the design, each pressure rod is equipped with an annular protective collar fixed on it between the code recesses with an abutment end, made with the possibility of contact with the surface of the bolt facing the abutment ends of the collars to ensure fixation of the corresponding pressure rod from axial movement when trying to select a code, while the pressure rods are spring-loaded by the free ends of the elastic plates of the fixing elements, and the orienting current of each push rod is formed by its end a longitudinal slot.

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