RU2403359C1 - Cylindrical lock with according key and blank key - Google Patents

Abstract

FIELD: construction. ^ SUBSTANCE: cylindrical lock comprises body and core arranged in it with the possibility of rotation. Core has hole for key arrangement. At one side of key hole, accordingly in core and body there are coaxial openings provided, in which in axial direction there are main crossbars of core and body arranged, being loaded with springs. At the other side of key hole in specified core there is at least one additional unit of crossbars opposite to and coaxially with the main crossbars of core in according hole. Additional unit of crossbars includes pushing crossbar loaded with spring and protruding into key hole. Core grooves are arranged in core. After additional unit of crossbars has been placed in plane perpendicularly to the main axis and parallel to plane passing through axis of additional unit of crossbars, profiled guides are arranged in core grooves. Profiled guides represent an isosceles trapezoid arranged with identical side ledges intended for entry into bores provided longitudinally in body. At least one ledge selectively arranged on large trapezoidal base protrudes into key hole. Additionally in core along lateral side of key hole there are side holes provided, which are connected to plane of key hole at the sharp angle. Side crossbars of core are arranged in side holes of core. Two longitudinal channels inside body have shape that complies with design of side crossbars of core. ^ EFFECT: development of cylindrical lock with according key and blank key to manufacture key with higher secrecy and simple design of lock, increased number of code combinations and possibility to control blank keys and their unauthorised use to make key copies. ^ 9 cl, 8 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a cylindrical lock with an appropriate key and a key blank for creating locking systems with a high degree of secrecy for residential buildings, public and other buildings, as well as cabinets, safes, doors, etc.

BACKGROUND

A cylinder lock with a corresponding key and a key blank are known from the patent BG 61702 B1. The known technical solution contains a cylindrical core mounted rotatably in the housing, having a well designed to accommodate a key therein.

The design includes a series of coaxial holes on one side of the key hole in the housing and in the core, in which in the axial direction there are a number of holes and pins of the core, loaded with springs and configured to move in the axial direction. On the other side of the key hole in the core, there are a number of reciprocal bolts, coaxial to a number of bolts in the housing and the core, located in an additional bolt assembly consisting of bolts loaded with a spring designed to push the key along its axis with at least one built-in movable movable an element that is designed to engage with one of the crossbars of the core.

The corresponding key blank consists of an elongated rod portion located along the main axis, and has first and second opposite flat surfaces connected by side surfaces. On the first wide surface of the key blank, longitudinal guide grooves are made along the first guide axis, which is parallel to the main axis. At least one first built-in movable displaceable element is installed in the elongated shaft portion, located along the first movable axis perpendicular to the axis of the first guide groove and extending from the first flat surface to the second flat surface, which is axially displaced along the first movable axis from the second flat surface inward to the first flat surface so that at least one integrated movable replaceable element is offset relative to the second flat surface spine and protrudes from the first planar surface. On the second wide surface of the key blank, guide grooves are also made along the axis of the second guide groove parallel to the main axis and the axis of the first guide groove. In the elongated portion of the shaft there is at least one second built-in movable replaceable element located along a second movable axis perpendicular to the axis of the second guide groove and parallel to the first movable axis. The movable element is also axially displaced along the second movable axis from the first flat surface to the second flat surface inward of the second flat surface so that when at least one second movable replaceable element is recessed relative to the first flat surface, it protrudes outward second flat surface. A key suitable for a cylindrical lock is made of a key blank, and on both surfaces along the first and second guide axis of the grooves, straight cuts are made defining the desired combination for the key, including movable elements of the desired configuration to provide part of the key combination.

The specified cylindrical lock has the disadvantage that it is vulnerable to cracking, since all decoding elements of the key protruding into the key grooves are loaded with springs, thus allowing them to be quickly overcome and access to the locking cams and, accordingly, unlocking the lock.

SUMMARY OF THE INVENTION

The present invention is directed to the creation of a cylindrical lock with a corresponding key and blanks for manufacturing a key with increased secrecy and at the same time, that the cylindrical lock has an optimal technologically effective simple design along with providing an increased number of code combinations and the ability to control key blanks and their unauthorized use for making copies of the key.

Thus, the present invention provides a cylindrical lock consisting of a housing and a rotatable core having a bore for receiving a key therein. On the one hand, in the key hole and, respectively, in the core and in the housing, coaxial holes are made in which, in the axial direction, the main crossbars of the core and the crossbars of the housing are loaded, loaded with springs. In the core on the other side of the key hole opposite and coaxial to the main crossbars of the core, at least one additional crossbar assembly is located in the corresponding hole, which includes a push bolt loaded with a spring and protruding into the key hole.

In accordance with the present invention, in the core behind the additional bolt assembly in planes perpendicular to the main axis and parallel to the plane passing through the additional bolt assembly, recesses are made in which profiled guides are placed, and the pushing bolt and its corresponding core bolt are made of hardened metal.

In accordance with this invention, the profiled guides are an “isosceles trapezoid” made with identical lateral protrusions designed to fit into the corresponding recesses in the housing, with at least one protrusion selectively located on a large trapezoidal base protrudes into the well for the key. In addition, radial holes are made in the core along the side of the key hole, which are connected at an acute angle with the plane of the key hole, side crossbars of the core are located in the indicated side holes of the core, and two longitudinal grooves inside the casing have a shape corresponding to the design of the side crossbars of the core .

A blank for manufacturing a key corresponding to a cylindrical lock comprises a gripping part, an elongated rod part extending along the main axis and having first and second opposite wide surfaces connected by narrow side surfaces, while longitudinal guides are made on the first wide surface of one side and parallel to the main axis channels and the same longitudinal guide channels are made symmetrically on the second wide surface on the other side parallel to the same main axis, and also containing movable elements inserted into said elongated shaft portion.

According to the present invention, at least one pair of rectangular through holes, which are located symmetrically on both sides of the main axis parallel to the longitudinal axes of the through holes, is made in the elongated core part of the key blank immediately after the gripping part, with a movable element mounted on each the main key crossbar, which is fixed in the transverse hole of the key blank, passing perpendicularly through the middle of a pair of rectangular through holes, and the movable elements are barrel-shaped a body having a central hole through which passes the primary deadbolt key. The movable elements are installed with the possibility of free rotation around the main key beam, and their maximum outer diameter is greater than the thickness (d) of the key blank, but less than 1.5d, while their minimum internal diameter is larger than the diameter of the main key beam. In addition, in accordance with this invention, on the first and second opposite wide surfaces of the key blank opposite the longitudinal guide grooves, but on the other side of the main axis, at least one longitudinal relatively deep wave groove is made, which is open from the outside and expands to the side the end part of the key blank, thus allowing the key to be made from the key blank, which can be used in any of two positions rotated through an angle of 180 °.

A key for a cylindrical lock made of a key blank contains a gripping part, an elongated rod part elongated along the main axis and having first and second opposite flat wide surfaces connected by narrow side surfaces, with longitudinal guide channels being made on the first wide surface on one side and parallel to the main axis, and the same channels are made on the second wide surface symmetrically on the other side of the main axis and parallel to the same main axis. Between these guide channels on both surfaces in a straight line, the main code combination is formed, since movable elements are inserted into the elongated shaft portion.

In accordance with the present invention, in the elongated shaft portion immediately behind the gripping portion, at least one pair of rectangular through holes is made that are symmetrically relative to the main axis parallel to the longitudinal axes of the through holes, with a movable element mounted on each main hole key crossbar, which is fixed in the transverse hole of the key blank, passing through the middle of a pair of rectangular through holes perpendicular to the main axis, these are movable elements have barrel-shaped body with a central hole through which passes the primary deadbolt key. The movable elements are installed with the possibility of free rotation around the main crossbar of the key and their maximum outer diameter is greater than the thickness (d) of the key blank, but less than 1.5d, while their minimum inner diameter is larger than the diameter of the main crossbar of the key. In addition, in accordance with this invention, on the first and second opposite wide surfaces of the key blank opposite the longitudinal guide channels, but on the other side of the main axis, at least one longitudinal relatively deep wave groove is made, which is open from the outside and extends to the side the end part of the key blank, thus allowing you to make a key from a key blank, which can be used in two positions, rotated through an angle of 180 °.

In accordance with the present invention, a cylindrical lock in combination with a corresponding key, which is located in the key hole, provides centering of at least one movable element installed in the key between at least one additional crossbar assembly and the opposite core crossbar, this, each profiled guide engages through its protrusions in a predetermined position with at least one deep wave groove made on the key, while all milled guides are in the core together with all basic and side core bolts.

A cylindrical lock, in accordance with the present invention, is applicable as a lock, made in the form of a double, half cylinder or door knob, padlock and other similar locks, moreover, it can be made in any desired configuration.

Therefore, the advantage of a cylindrical lock with an appropriate key and a key blank in accordance with this invention is the increased number of coding combinations that are four and are made in the coded key, respectively, through combinations of the main and side recesses, as well as movable elements and the wave groove installed in the key, performed on the key, all this together allows you to achieve a locking code combination, which is selectively formed together with the corresponding decoding electronic key elements, the latter placed rationally in a cylindrical lock in order to create a structure as simple as possible, but at the same time technologically advanced.

Another advantage is the use of an additional bolt assembly and an opposite main core bolt for decoding embedded rotary elements in the key, which, in addition to their main functions, also have an anti-burglary function, since the additional bolt assembly is located immediately behind the key hole and its pushing bolt and the opposite The main crossbar of the core is made of hardened metal. At the same time, profiled guide crossbars designed to decode one key combination installed in a selectively manufactured wave groove on the key protrude into the key hole without spring force and move freely in the core, thus further reducing the risk of unauthorized access to the cam lock cylinder using a hack tool. In addition, the key blank attached to the corresponding cylindrical lock cannot be manufactured using conventional common locksmith tools, which provides control over the key blanks and, accordingly, the production of key copies.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is more fully and clearly described below with reference to the accompanying drawings.

Figure 1 is a cross-section of a cylindrical lock with a corresponding key inserted into the key hole.

Figure 2, 3 and 4 are sections of typical parts of a cylindrical lock with a corresponding key inserted into the key hole.

5 is a General view of the key blank for the manufacture of the corresponding key.

Figa and 6B is a General view of the key.

7 is a cross section of a key corresponding to a key blank illustrating inserted movable elements and their assembly assembly.

DETAILED DESCRIPTION OF THE INVENTION

In accordance with the examples, one embodiment of a cylindrical lock with a corresponding key and a blank for making a key is shown, which is shown in FIGS. 1, 2, 3, 4, 5, 6A, 6B, and 7.

The cylinder lock 1 consists of a housing 2 and a core 3 mounted rotatably, said core 3 has a bore 4 for accommodating the key 5. On one side of the bore 4 for the key, respectively, in the core 3 and the housing 2 there are coaxial holes 35 and 36, in which respectively are placed in the axial direction of the main crossbars 6 of the core and the crossbars 7 of the body, loaded with springs 8. The main crossbars 6 of the core are designed for their engagement with the main code combination of recesses 32, made in the form of recesses on wide protrusions vopolozhnyh surfaces 24 and 25 on the respective key 5 of the cylinder lock 1.

In accordance with one embodiment of the present invention, the number of core crossbars 6 of the core is six, but in other embodiments, the number of core crossbars 6 of the core may be greater than or less than six.

In the core 3 on the other side of the key hole 4, a hole 37 is made opposite and coaxial to the pair of holes 35 and 36 when an additional node of the crossbars 9 is located in the specified hole 37, which includes a push bolt 10, loaded with a spring 11 and protruding into the key hole 4 . The push bolt 10 and its corresponding opposite main core bolt 6 are made of hardened metal.

In accordance with this invention, a variant is also possible in which the number of holes 37 corresponding to the additional node of the crossbars 9 is more than one.

In addition, in the core 3 along the key hole 4, side holes 13 of the core are radially made in planes intersecting at an acute angle with the plane of the key hole 4, and side crossbars 14 of the core are located in the said side holes 13 of the core. Inside the housing 2 there are two longitudinal channels 38 and 39, having a shape corresponding to the side crossbars 14 of the core, these longitudinal channels 38 and 39 are designed to block the side crossbars 14 of the core when placing the wrong key inside or removing the wrong key from the cylindrical core 1. In this described embodiment embodiments, the number of side crossbars 14 of the core is five, but in other embodiments, the number may be more or less than five.

In the core 3 behind the additional node of the crossbars 9 in planes perpendicular to the main axis and parallel to the plane passing through the axis of the additional node of the crossbars 9, recesses 15 of the core are made, which include profiled guides 16.

In this preferred embodiment, the number of profiled rails 16 is four, but in other embodiments this number may be more or less than four.

These profiled guides 16 are an “isosceles trapezoid” made with identical lateral protrusions 17, intended to enter the corresponding recesses 18 and 19, made longitudinally in the housing 2, while one selectively protruding 20 protrusion on a large trapezoidal base protrudes into the well 4 the key.

In this described embodiment, the profiled guides 16 have only one protrusion 20 and in the example shown there is only one wave groove 21 on the key 5, which includes the specified protrusion 20. In other embodiments, the number of wave grooves 21 and the corresponding protrusions 20 may be more than one .

Accordingly, the key blank 22 for making the key 5 consists of a gripping portion 34, an elongated rod portion 23 located along the main axis, which has first 24 and second 25 opposite wide flat surfaces connected by narrow side surfaces 26, while on the first wide surface 24 sec on one side and parallel to the main axis, longitudinal guide channels 27 and 27a are made, while the same channels 27 and 27a are made symmetrically on the second wide surface 25 on the other side of the main axis and parallel to flax same major axis. In the elongated core part 23 of the key blank immediately after the gripping part 34, one pair of rectangular through holes 28 is made, which are located symmetrically on two sides of the main axis parallel to the longitudinal axes of the through holes 28. In each of the holes 28, movable elements 12 are installed on the main key bolt 29 while the specified main key bolt 29 is fixed in the key blank 22 in the transverse key hole 30, which passes through the middle of a pair of rectangular through holes 28 transverse to the main axis.

In this described embodiment, one pair of rectangular through holes 28 on the key blank 22 is made, but in other embodiments, the number of rectangular through holes 28 on the key blank 22 may be more than one pair.

The movable elements 12 are barrel-shaped with a central hole 31 through which the main key beam 29 passes. These movable elements 12 are mounted to rotate freely around the key key beam 29, and their maximum outer diameter is greater than the thickness (d) of the key blank 22, but less than 1.5d, while their minimum inner diameter is larger than the diameter of the key key beam 29.

In addition, on the first 24 and second 25 opposite wide flat surfaces of the key blank 22, opposite the guide channels 27 and 27a on the other side of the main axis, a longitudinal relatively deep wave groove 21 is made, which is open from the outside and expands towards the end part of the key blank 22, thus, allowing the key 5 to be made from said key blank 22, which can be used in either of two positions rotated through an angle of 180 °.

The corresponding key 5, made from the key blank 22, consists of a gripping part 34, an elongated rod portion 23 located along the main axis and having the first 24 and second 25 opposite wide wide flat surfaces connected by narrow side surfaces 26, while on the first wide surface 24 on the one hand and parallel to the main axis, longitudinal guide channels 27 and 27a are made, and the same channels 27 and 27a are made on the second wide surface 25 symmetrically and parallel to the same main axis. Between the said guide channels 27 and 27a, on both surfaces in a straight line, the main code combination 32 is made, and on the narrow narrow surfaces 26, the side code combination 33 is made. In the elongated rod portion 23 of the key blank 5, one pair of rectangular through holes is made immediately after the gripping portion 34 28, which are located symmetrically with respect to the main axis parallel to the longitudinal axes of the through holes 28. In each of the holes 28, movable elements 12 are mounted on the main key beam 29 of the key, said axis ovnoy key latch 29 is fixed in the key 5 in a transverse bore 30 which extends through the middle of the pair of rectangular pass holes 28.

In this described embodiment, there is one pair of rectangular through holes 28 on the key 5, but in other embodiments, the number of rectangular through holes 28 may be more than one pair.

The movable elements 12 are barrel-shaped with a central hole 31 through which the main key beam 29 passes. These movable elements 12 are installed with the possibility of free rotation around the main bolt 29 of the key, and their maximum outer diameter is greater than the thickness (d) of the key 5, but less than 1.5d, while their minimum internal diameter is larger than the diameter of the main bolt 29 of the key. In addition, on the first 24 and second 25 opposite flat surfaces of the key 5 opposite the longitudinal guide channels 27 and 27a on the other side of the main axis, a longitudinal relatively deep wave groove 21 is made, which is open from the outside and expands towards the end part of the key 5, thus The key 5 can be used in one of two positions, rotated through an angle of 180 °.

When the corresponding key 5 is located in the cylindrical lock 1, located in the lock bore 4, one of the movable elements 12 installed in the key 5 is centered between the additional crossbar assembly 9 and the opposite main core crossbar 6, after which each profiled guide 16 is located in meshing in a predetermined position with the wave groove 21 made on the key 5, so that all profiled guides 16 are in the core together with all the main crossbars 6 of the core and all side crossbars 14 core.

INDUSTRIAL APPLICABILITY OF THE INVENTION

According to the present invention, a cylindrical lock used with a corresponding key made from a corresponding key blank works as follows:

When placing the corresponding key 5 in the bore 4 for the key of the cylindrical lock 1 in accordance with FIGS. 1, 2, 3, 4, 5, 6A, 6B and 7, the main crossbar 6 of the core, being engaged with the main code combination of the recesses 32 made in in the form of recesses on the first 24 and second 25 wide opposite surfaces of the key 5, it completely enters the core 3, and a cut line 26 is formed between the contacting surfaces of both groups of crossbars - the main crossbars 6 of the core and the crossbars 7 of the housing, so that the core 3 can rotate itself when proper installation on key 5 other decoding combinations. However, if the inserted key 5 does not fit the cylindrical lock 1, the cut-off line 26 is broken due to an incorrect basic code combination of the recesses 32 of the key 5, and even if all other key combinations of the key are correct, rotation of the core 3 and accordingly its unlocking is impossible. If, however, when the key 5 is placed in the key hole 4, the side crossbars 14 of the core enter the recesses on one side code combination of recesses 33 made on the side narrow opposite surfaces 26 of the key 5, so that the side crossbars 14 of the core completely enter the core 3, this allows the key to rotate when correctly installed on the key 5 other decoding combinations. However, if the lateral code combination 33 of the recesses on the key is incorrect, then the corresponding correct side crossbars 14 of the core enter the longitudinal channels 38 and 39 of the housing 2, depending on how the key 5 is inserted into the cylinder lock 1, from the outside or from the inside, and thereby making it impossible to rotate, even if all other key combinations are correct. When placing an inappropriate key outside the cylindrical lock 1, the crossbars 14 are blocked in the longitudinal channel 38, and when placing an inappropriate key from the inside of the cylindrical lock 1, the crossbars 14 are blocked in the longitudinal channel 39. At the same time, immediately when the key 5 is inserted into the key hole 4, the profiled guides 16 through their protrusions 20 are in truncated cones mesh with the wave groove 21 made on the key 5, slide and guided by the wave groove 21 until the key 5 is fully inserted into the cylinder lock 1; while these profiled guides 16 reach a predetermined position in the wave groove 21, completely entering the core 3, thereby allowing its rotation, if the rest of the key combinations of the key are correct. However, if the wave groove 21 present on the key 5 is incorrect, then the correct profiled guides 16 through their lateral left or right protrusions 17 go into the left recess 19 or the right recess 18 of the housing 2, respectively, thereby profiled guides 16 prevent the core 3 from rotating, even if all other combinations of key 5 are correct. In addition, when the key 5 is completely inserted into the cylindrical lock 1, one of the movable elements 12 integrated into the key 5 is centered between the additional node of the crossbars 9 and the opposite main core crossbar 6, after which the pushing crossbar 10, loaded with a spring 11, pushes the built-in movable element 12 until it reaches the position where the end of the corresponding opposite main crossbar 6 of the core is installed along the cut line 26, thus allowing the core 3 to rotate in the housing 2, if all other combinations are key true. However, if there are no built-in movable elements 12 on the key 5, or their sizes are incorrect and do not correspond to their decoding elements in the cylinder lock 1, then the corresponding opposite main core bolt 6 violates the cut line 26, and accordingly the core 3 is blocked and the cylinder lock 1 cannot be open even if the rest of the key combinations are correct.

Claims (9)

1. A cylindrical lock (1) comprising a housing (2) and a core (3) rotatably disposed therein, having a well (4) for accommodating a key (5), on one side of a well (4) for a key, respectively, in the core (3) and housing (2), coaxial holes (35) and (36) are made, in which the main crossbars (6) of the core and the crossbars (7) of the housing, loaded with springs (8), respectively, are located in the axial direction; on the other side of the well (4) for the key in said core (3), at least one additional crossbar assembly (9) is installed opposite and coaxial to the main crossbars (6) of the core in the corresponding hole (37); said additional crossbar assembly (9) includes a pushing crossbar (10) loaded with a spring (11), which protrudes into the key hole (4), characterized in that recesses (15) of the core are made in the core (3) after the additional the crossbar assembly (9) is placed in a plane perpendicular to the main axis and parallel to the plane passing through the axis of the additional crossbar assembly (9), profiled guides (16) appear in the recesses (15) of the core; these profiled guides (16) are an isosceles trapezoid made with identical lateral protrusions (17) designed to enter the corresponding recesses (18) and (19), made longitudinally in the housing (2), with at least one the protrusion (20), selectively located on a large trapezoidal base, protrudes into the well (4) for the key; additionally, in the core (3) along the side of the borehole (4) for the key, side holes (13) are made, which are connected at an acute angle to the plane of the borehole (4) for the key, respectively, side crossbars (14) of the core are located in these side holes (13) the core, and two longitudinal channels (38) and (39) inside the housing (2) have a shape corresponding to the design of the side crossbars (14) of the core. 2. A cylindrical lock according to claim 1, characterized in that the pushing bolt (10) of the additional bolt assembly (9) and its opposite main core bolt (6) are made of hardened metal. 3. A blank (22) for a key (5) corresponding to a cylindrical lock (1), consisting of a gripping part (34), an elongated shaft part (23), which is located along the main axis and forms the first (24) and second (25) opposite flat wide surfaces connected by narrow side surfaces (26), while on the first wide surface (24) longitudinal guide channels (27) and (27a) are made on one side and parallel to the main axis, and the same channels (27) and ( 27a) are symmetrically made on the second wide surface (25) on the other side of the bases axis parallel to the same main axis, while movable elements (12) are installed in the elongated shaft part (23), characterized in that at least one pair is made immediately after the gripping part (34) in the elongated shaft part (23) rectangular through holes (28); said holes (28) are located symmetrically on both sides relative to the main axis parallel to the longitudinal axes of the through holes (28); in each of the holes (28), movable elements (12) are installed on the main key beam (29) of the key, as well as on the first (24) and second (25) opposite wide flat surfaces of the key blank (22), opposite the longitudinal guide channels (27) and (27a) on the other side of the main axis, at least one longitudinal relatively deep wave groove (21) is made, which is open from the outside and expands towards the end part of the key blank (22); thus, a key (5) made from said key blank (22) can be used in one of two positions rotated through an angle of 180 °. 4. The key blank according to claim 3, characterized in that the main key beam (29) of the key is fixed in the key blank (22) and placed in the transverse hole (30) of the key, which passes through a pair of rectangular through holes (28) transverse to the main axis. 5. The key blank according to claims 3 and 4, characterized in that the movable elements (12) have a barrel-shaped shape with a central hole (31) through which the main key beam (29) passes; these movable elements (12) are installed with the possibility of free rotation around the main bolt (29) of the key and their maximum outer diameter is greater than the thickness (d) of the workpiece (22) of the key, but less than 1.5d, while their minimum internal diameter is larger than the diameter main crossbar (29) of a key. 6. A key (5) for a cylindrical lock (1), consisting of a gripping part (34), an elongated rod part (23) located along the main axis and forming the first (24) and second (25) opposite flat wide surfaces connected by narrow lateral surfaces (26), while on the first wide surface (24), on one side and parallel to the main axis, longitudinal guide channels (27) and (27a) are made, and the same channels (27) and (27a) are symmetrically made on the second wide surface (25) on the other side of the main axis parallel to the same main si, between the indicated guide channels (27) and (27a) on both surfaces in a straight line, the main code combination of the recesses (32) is made, while in the elongated shaft part (23) movable elements (12) are installed, characterized in that immediately behind the gripping part (34) in the elongated shaft part (23) has at least one pair of rectangular through holes (28), said holes (28) are symmetrically on both sides relative to the main axis parallel to the longitudinal axes of the through holes (28), each of the holes (28) at movable elements (12) are mounted on the main key bolt (29) of the key, as well as on the first (24) and second (25) opposite wide flat surfaces of the key (5), opposite the longitudinal guide channels (27) and (27a), on the other side at least one longitudinal relatively deep wave groove (21) is made from the main axis, which is open from the outside and expands towards the end part of the key (5), and on both narrow side surfaces (26) a side code combination of recesses (33) is made Thus, key (5) can be used in one of two fields. zheny rotated through an angle of 180 °. 7. A key for a cylindrical lock according to claim 6, characterized in that the main bolt (29) of the key is fixed in the key (5) and placed in the transverse hole (30) of the key, which passes through a pair of rectangular through holes (28) transverse to the main axis . 8. The key according to claims 6 and 7, characterized in that the movable elements (12) have a barrel-shaped shape with a central hole (31) through which the main bolt (29) of the key passes, these movable elements (12) are installed with the possibility of free rotation around the main bolt (29) of the key, and their maximum outer diameter is greater than the thickness (d) of the key (5), but less than 1.5d, while their minimum inner diameter is larger than the diameter of the main bolt (29) of the key. 9. The combination of a cylindrical lock (1) and the corresponding key (5) according to claims 1 and 2, 6 to 8, characterized in that when the key (5) is located in the keyhole (4), at least one the key (5) the movable element (12) is centered between at least one additional node of the bolts (9) and the opposite main bolt (6) of the core, with each profiled guide (16) by means of the protrusion (20) is engaged position with at least one wave groove (21) made on the key (5), while all pros th e guides (16) are in the core (3) together with all main girders (6) and all side core crossbars (14) of the core.

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