ES2198803T3 - CLOSURE DEVICE - Google Patents

Abstract

Symmetrical notches are formed in the narrow sides, main housing section and spine of the key. The key channel (6) extends in the length plane (5) of the lock (1) and at right angles to the cylinder core (4). The key channel side walls (17,18) at the open end of the channel are separated by a distance (16) less than the diameter (19) of the cylinder housing pin (12).

Description

Closing device

The present invention relates to a device lock, comprising a cylinder lock and a flat key reversible, being formed the cylinder lock of a box of cylinder with rotating cylinder core, the cylinder core with an open key channel on the side of the cylinder housing for the introduction of the corresponding reversible flat key and presenting for this the reversible flat key, in two of its opposite sides, cavities of different depths, which in turn boost needle locks and loaded core locks with spring, which are housed in holes, which are aligned of the cylinder housing and the cylinder core.

A solution of this kind is known by the DE 26 58 495 A1. For this, the channel has been arranged properly horizontal in the cylinder core and flat key reversible is equipped, on its two wide sides of the key, with cap shaped cavities. This solution certainly has the advantages of a closing device, resulting from the relevant use for the safety of needle locks and especially the possibility of using a flat key reversible, the lock can be operated in a known way cylinder also with the flat key turned 180º and thus considerably facilitates the handling of the key.

However, it is considered disadvantageous. that in spite of the needle fasteners it should be considered as reduced the safety of opening of the closing device, because the stepped, as for the depth of the cavities, arranged on the wide side of the key, are limited by the thickness of available material of the flat key and with it also only reduced strokes of the needles of the guarantor. Maximum strokes of the guarantor needles are limited by the thickness of the key or the width of the key channel, because the core needles that enter the flat key on the flank and thereby necessarily the pins of the box only slightly enter the holes in the core of the cylinder for blocking its rotation in relation to the box of the cylinder, in such a way that the opening attempts with violence They can be considered as possible. In addition, due to limitations, which exist as regards the staggering of depths, only a reduced permutation, of such that this solution for both facilities and Closing devices can only be created with a wide variety of closures of limited form.

In addition, a solution is known according to the document DE 94 18 309 U1, with a flat key that can be inserted into a closed channel, which has symmetrical cavities on its sides narrow (front and back of the key), the elements clamping have been configured as discs (inserts), which held in an inner cylinder and in turn housed in a box cylindrical rotating. Such devices have the disadvantage principal that they only have reduced security against opening and are unsuitable for the realization of the facilities and closing devices. This is based on the fact that such guarantors of disc cannot be divided into several closing planes such as needle locks. Finally, document DE 44 22 093 C2 gives know a solution in which the flat key is equipped with narrow sides (front of the key) with cavities in shape of closing notches. This key is not used as a key reversible.

The object of the invention is a device for closing of the type previously exposed, by means of great races of the needles of the fasteners, using a reversible flat key and this can increase security against opening and permutation.

According to the invention, this is solved problem with the characteristics of the claim.

The advantages of the present invention consist, in which by the two narrow sides (front and back of the key) the rotary key post allows notches of closing and the course of the channel of the needles of guarantor duly large (core and box needles) since both sides are large sections of the height of the seatpost of key for the realization of the closing notches. Neither do the core needles with the reversible flat key removed can no longer be in contact on the flanks of the key channel, such so that the needles in the box can move deeply in the holes in the cylinder core to block its rotation in relation to the cylinder housing and thus are resistant against violent opening rehearsals. In addition, there is this mode in relation to the deep stepping of the closing notches a larger game space, being able to achieve a permutation major and this solution can also be achieved for installations and closing devices with a great variety. By Last, it is guaranteed by the size ratio adapted between the width of the flanks and the open side of the key channel, with relation to the size of the pins of the box, which after the introduction of the reversible flat key and the consequent rotation of the cylinder core, relative to the case of the cylinder, during the passage of the open side of the key channel to through the area of the needles in the box, they cannot penetrate the key channel, in such a way that a operating capacity of the closing device.

The present invention will be explained below. in more detail in an embodiment example and the Corresponding drawings, which show:

Figure 1, a longitudinal section of the closure device according to the invention along the line A-A in figure 3 with the reversible flat key removed (= locked position) with a side view of the key flat reversible.

Figure 2, a partial longitudinal section of the closure device according to the invention along the line B-B in figure 4, with swivel key inserted (= closing position) in perspective representation.

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de la figura 1 con llave plana reversible extraída (= posición de bloqueo).Figure 3, a cross section of the closure device according to the invention, along the line

 \ hbox {CC} 

of figure 1 with reversible flat key removed (= lock position).

\hbox{D-D}

de la figura 2 con uno llave plana reversible introducida (= posición de cierre).Figure 4, a cross section of the closure device according to the invention along the line

 \ hbox {DD} 

of figure 2 with a reversible flat key inserted (= closing position).

Figure 5, a cross section of the closing device according to the invention after an angle of 180º rotation of the cylinder core in relation to the box of the cylinder.

Figure 1 represents the closing device according to invention. This is formed of a cylinder 1 bolt and of a reversible flat wrench 2. The latter for the improvement of operation can be introduced in two different positions, that is, also rotated 180º, for the actuation of the lock of cylinder 1. The cylinder 1 lock is essentially formed of the cylinder 3 housing and the cylinder core 4 mounted rotating around the axis of rotation 22. In the core of the cylinder 4 is provided, essentially perpendicular to the core of the cylinder 3 and on the side of the cylinder housing, the channel of open key 6 for the seat of the flat key seat 7 reversible 2 corresponding. To do this, the longitudinal plane 5 cut the cylinder housing 3, the rotation axis 22 of the core of the cylinder 4 and runs through the key channel 6 and axes lengths of the core pins of the box 11, 12, of such so that the longitudinal plane 5 is advantageously designed coinciding with the imaginary longitudinal central plane (figures 2 to 5). For this, the cylinder 1 lock is subdivided by this longitudinal central plane in two halves. As they also exist,  however, also the possibility, not represented, of allowing, the passage of the longitudinal center plane displaced, in such a way that it only integrates the axis of rotation 22 of the cylinder core 3.

In the core of cylinder 4 and in the piece bottom 8 of the cylinder housing 3 have been arranged aligned with each other holes 9 or 10, which previously lead several different cross-section planes and are conducted along of the longitudinal plane 5 of the cylinder core 4, which in turn held by the cylinder 3 box and propel the needles of the box 2, such that the pins of the box 12 with the key rotary not introduced 2 enter the holes 9 of the core of the cylinder 4 and thus block it against the rotation of the box of the cylinder. On its open side towards the cylinder housing 3 of the key channel 6, according to figures 3 to 5, the separation (width) 16 between the key channel 6 for the flanks 17, 18 is more reduced in relation to the dimension (for example, diameter) 19 of the pins of the box 12.

In addition, the reversible flat key 2 is provided on its two narrow sides, that is, the front of the key 13 and the back side of key 14 with cavities symmetrically arranged in the configuration of closing notches variables 15, which in turn, in the introduction of post 7 of the reversible flat key 2, in the key channel 6 of the core of the cylinder 4 act together with holes 9, 10 of the core of the cylinder 4 by the cylinder housing 3, and also 5 act together the core needles 11 or guided box needles 12 along the longitudinal plane. This happens, as is known, such that the ends of the cylinder side of the core pins 11 formed with the ends of the side of the cylinder core of the needles of the box 12 form a gasket of common separation 20, which then, along the pivot joint of the core 21, runs between the cylinder housing 3 and the core cylinder 4 (figures 2 and 4).

If now, starting with the key 7, the Figure 1, the reversible flat key 2 is inserted into the channel of key 6, then the closing notches 15 are arranged in the part front 13 of the reversible flat key 2, the latches of the needles, which are the longitudinal plane 5 in the form of core pins 11, and box needles 12, loaded with spring, an extension of the needles 11, 12 takes place in address of the lower part 8 of the cylinder housing 3 in its holes 9, 10. For this the ends directed towards each other of the needles of the core 11 and of the needles of the box 12, positioned in such a way that their separation joints 20 are now found in the area of the rotation joint of the core 21, between the center box 3 and the cylinder core 4, and thus Eliminate rotation lock due to needles in box 12 of the cylinder core 4 relative to the cylinder housing 3 (Figures 2 and 4). If the closing device is activated carried out by the rotation of reversible flat key 2, then it is arrived, after an angle of rotation of 180º (figure 5), of the back of the key 14 to the area of the pins box loaded with spring 12. A penetration of the pins box 12 on the open side of the key channel 6 and a lock of new unwanted closure device, which would also cause a disable that could not be remedied can be excluded with success, because the separation (width) 16 between the key channel 6 on its flanks 17, 18, which limit its open channel, it has set smaller compared to dimension 19 (for example, diameter) of the box pins 12. After continue turning the cylinder core 4 the key channel arrives back to its initial position according to figures 2 and 4 in which the reversible flat key 2 can be removed, thereby cylinder side ends of loaded box pins with spring 12 they move back to the holes 9 of the core of cylinder 4 (see figures 11) and thus ensure they have activate its lock again against the cylinder housing 3.

List of reference signs

one

lock of cylinder

two

flat key reversible

3

box cylinder

4

core of cylinder

5

flat longitudinal

6

channel of key

7

seatpost key

8

piece lower

9

orifice

10

orifice

eleven

needle of core

12

needle of box

13

front of the key

14

back of the key

fifteen

notch of closing

16

separation (width)

17

flank

18

flank

19

dimension

twenty

board of separation

twenty-one

turn board core

22

axis of rotation

Claims (1)

1. Locking device, comprising a cylinder lock (1) and a reversible flat key (2), the cylinder lock (1) being formed by a cylinder housing (3) with rotating cylinder core (4), the cylinder core (4) provided with a key channel (6) open on the side of the cylinder housing for the introduction of the corresponding reversible flat key (2) and presenting the reversible flat key (2) in two from their opposite sides cavities of different depths, which in turn drive the needle latches and the spring-loaded core fasteners (11), which are housed in holes (9, 10), which are aligned, of the case of the cylinder (3) and of the cylinder core (4), characterized in that the reversible flat key (2) is provided on its narrow side, the front part of the key (13) and on the rear part of the key (14), with cavities arranged symmetrically in the form of closing notches (15), which run in the channel of key (6) in the longitudinal plane (5) of the cylindrical lock (1) and thereby essentially perpendicular to the cylinder core of (4), and the flanks (17, 18) located on the open side of the key channel ( 2) at a shorter distance (width) (16) in relation to the dimension (19) of the box needle (12).