KR900008653B1 - Cylinder lock - Google Patents

Abstract

In the cylinder lock, axial slots are provided in the core of the cylinder. These slots either accommodate a springless additional blocking pin or double-arm blocking levers which have on each arm a blocking projection for engagement in each case with one blocking projection recess of the cylinder core borehole. The additional blocking pins and the blocking levers are controlled by lateral surface regions of the key which are varied in level. <IMAGE>

Description

lock

1a shows a side view of a plug in a lock according to the invention;

FIG. 1B is a sectional view taken along line 1a / 1a of FIG. 1A through a lock according to the present invention with the matching key of FIG. 1F inserted; FIG.

FIG. 1C is a cross-sectional view taken along line 1b / 1b of the lock with the registration key of FIG. 1f inserted. FIG.

FIG. 1d is a sectional view taken along line 1a / 1a of the lock in which the mismatching key according to FIG. 1g is inserted.

FIG. 1E is a cross-sectional view taken along line 1b / 1b of the lock in which the mismatching key of FIG. 1g is inserted.

FIG. 2A is a cross-sectional view of another embodiment taken along a line corresponding to line 1a / 1a in which the registration key of FIG. 2G is inserted.

FIG. 2B is a cross-sectional view taken along a line corresponding to line 1b / 1b penetrating the lock of FIG. 2A with the registration key of FIG. 2G inserted; FIG.

FIG. 2C is a cross sectional view at the line 1a / 1a of the lock corresponding to FIGS. 2A and 2B in which the mismatching key of FIG. 2H is inserted;

FIG. 2d is a sectional view taken along the line 1b / 1b through the lock corresponding to FIG. 2a with the mismatching key inserted therein; FIG.

FIG. 2E is a cross-sectional view taken along line 1b / 1b through a lock corresponding to FIGS. 2a and 2b with the master key inserted in FIG. 2i inserted; FIG.

FIG. 2F is a cross sectional view taken along line 1b / 1b through a lock corresponding to FIGS. 2a and 2b with the master key of FIG. 2i inserted; FIG.

3A and 3B are schematic views of two locks forming a combination lock.

3c is a lock master key of FIGS. 3a and 3b.

4a is a sectional view through point G of the lock of FIG. 3a.

4b is a sectional view through point H of the lock of FIG. 3b.

FIG. 5A is a side view of the flat key of FIG. 3A.

FIG. 5B is a side view of the flat key of FIG. 3B.

Figure 5c is a side view of the flat key of Figure 3c.

6 shows a modification of the embodiment of FIGS. 1 and 1a.

7 is a partial cross-sectional view of the embodiment of FIG.

* Explanation of symbols for main parts of the drawings

12: lock plug hole 14: lock plug

16: keyhole 17: key

24: Slot 26: Double Arm Lock

28: adjustment pin 29: adjustment pin hole

30,51: release surface 32: additional locking pin

33,36a, 36b: Yom 34,38: Level change

The present invention relates to a lock case, in particular a HAHN shaped lock case, a lock plug rotatably supported in a lock plug hole in the lock case and having a key hole for receiving a mating key, and a distal pin and plug hole housed in the case hole. Spring-loaded pin tumblers with driven key pins accommodated by teeth on the key blade, arranged axially between successive pin tumblers, adjusted by the level-change side region of the key and inside the lock plug It is about a lock consisting of additional tumblers interacting with grooves on the circumferential surface.

A lock of this structure is known from French publication 2 280 772 (Utility Model Registration No. 74 27 050), wherein the lock plug is axially separated and positioned generally perpendicular to the lock plug axis. They are provided on both sides of the key preserver. These slots are pivotally positioned about a lock lever pivot axis that is substantially parallel to the lock plug axis, with each arm having a lock projection that engages the lock projection recess on the inner circumferential surface of the lock plug hole. Changing the level of adjustment of the locking lever has a single arm that engages the adjustment with the lateral area, is loaded with a spring to maintain the adjustment engagement, and can be doubled to allow both locking projections to be withdrawn from both locking projection grooves by a mating key. Accepts the arm lock lever.

It is known from German Patent Application No. 20 03 059 to provide a lock plug of the type of lock described above with an additional locking pin hole occupied by an additional locking pin without spring, and these additional locks facing the keys. The ends of the pins are adjusted by the level change side region of the key to adjust the additional locking pins and the ends remote from the keyholes interact with the locking pin grooves and cams in the locking pin grooves in the circumferential surface of the lock plug hole respectively. Works. By rotating the lock plug with the mating key, these additional locking pins are released into their respective locking pin recesses.

The problem underlying the present invention is to provide a lock that is more difficult for the inexperienced person to understand and solve, as distinguished from known locks by the widest possible range of modifications for locks of the same basic structure.

In order to solve this problem, a lock of the above type incorporating the features described below is provided.

a) the lock plug is provided with slots located at least one side of the keyhole, preferably axially spaced on either side, substantially perpendicular to the lock plug axis, and b) some of these slots have double lock levers. The dual locking lever is pivotally positioned about a locking lever pivot that is parallel to the lock plug axis and has a locking projection on each arm that engages in a locking projection recess on the inner circumferential surface of the lock plug hole. Locking lever adjustment level with one arm to adjust the adjustment side and spring loaded to maintain the adjustment engagement, with the matching key to be able to withdraw the projection from both locking projection grooves, c) an additional locking pin on the lock plug Holes are provided and each of the additional locking pin holes has an axis approximately in the midplane of the slot, Each slot side is cut into the shape of a cylindrical section, d) at least some of the additional locking pin holes coincident with the slots not occupied by the double arm lock lever are occupied by an additional springless locking pin. And the end of the additional locking pin in contact with the key is adjusted by the level change side region of the key adjusting the additional locking pin, the ends distant from the keyhole being cam-like with additional locking pin recesses on the circumferential surface of the lock case hole respectively. Interactively, the lock plug can be rotated with a key to escape from each additional lock pin recess.

According to one embodiment of the present invention, which is distinguished by the highest degree of security, the two locking lever protrusions simultaneously deviate from each locking protrusion recess at the single angle pivot position of the dual arm locking lever, i.e. The inner circumferential surface and both protrusions lie roughly coincident at the same time. This fact is also suitable for combination locks. Therefore, this embodiment has particularly high security safety because it is difficult to simultaneously move all lock levers to this one angular position where rotation of the lock plug by a needle or the like is possible.

The adjustment engagement between the dual arm lock lever and the lock lever adjustment level change side region of the key is that the adjustment engagement is generated via the adjustment pin, which is accommodated in the adjustment pin hole connecting the keyhole and the respective slot bottoms. . This embodiment makes it possible, in particular, to make the slots in the lock plug simple in shape since the slots themselves do not have to be perpendicular to the keyhole, which offers the advantage of not excessively weakening the lock plugs. In addition, in view of the need for a minimum possible number of different lock elements, embodiments with adjustment pins may have corresponding locking levers and correspondingly varying adjustments to suit the changing release surface of the key level change side region. Open the possibility of deformation by pin length.

In construction with adjusting pins, it is recommended that the adjusting pin hole should have a diameter larger than the width of the slot and that the adjusting pin hole should be cut into the two slot sides by way of a cylindrical part. In this way an extended guide of the adjusting pins is achieved, and therefore undesirable tilting is avoided, and the adjusting pin holes can be drilled to increased diameters in consideration of simple manufacturing.

In order to press the double arm lock lever with a spring, it is further proposed that the double arm lock lever is pressed by a coil press spring received by a spring hole cut into each slot side and / or the slot bottom. This structure is preferable in view of the simple insertion of the lock.

In principle, it is possible for the same level change side area of the key to be used for adjustment of the lock lever and the additional lock pin. However, in order to expand the possibility of deformation of the locking ability of various locks, it is advantageous that the locking lever adjustment level change side area of the key and the additional locking pin adjustment side of the key are placed at different distances from the key or the like. In this case, it is recommended that the lock lever adjustment level change side region of the key be closer to the key or the like than the additional lock pin adjustment level change side region of the key. This embodiment, on the one hand, ensures the extended guidance of the additional locking pins in each additional locking pin hole and on the other hand enables the desired enlargement of the double arm locking lever, in other words, simplifying the operation during assembly. Cause.

In order to harden the manufacture of the lock, it is recommended that several, preferably all slots pass through the slots on at least one side of the hole of the key and have bearing pins common to several dual arm lock levers.

It has already been described above that the uniformity of the dual arm lock levers or the uniformity of the groups of dual arm lock levers present at least in various ways is desirable. The change in the level of the locking lever adjustment The various surface depths of the release surface assigned to each dual arm locking lever of the side region can then be compensated by the adjustment pins of different lengths. A particularly advantageous solution, in which the simplicity of manufacturing and the cost of production are concerned, is achieved if the locking lever adjustment level change side area of the key comprises a release surface with only two different surface depths, and thus two different lengths of adjustment pins are provided. do.

Additional locking pins and thus additional locking pins, to ensure that the adjustment pins and the additional locking pins, if applicable, cannot fall too far or completely into the keyhole and thus do not lose the guide provided by the hole receiving them. It is recommended that the holes and / or the adjustment pins and subsequent adjustment pin holes have a short diameter, each with a small diameter close to the key hole and a large diameter far from the key hole.

The lock according to the invention can, in principle, be made to have the most modified key shape. However, it is recommended that the key be made of flat key, which means that the level change side area is changed to the relationship level by boring or milling the relatively high side areas. Especially suitable for users who want a flat key.

In consideration of providing the widest range of change in the locking capability of the lock of the same basic structure, the flat key can be made of a flat key contoured in cross section, and thus a complementary relative shape is found in the keyhole.

In view of the most rational manufacturing possibilities of the lock, it is recommended that the slots are milled with a side milling cutter. In some cases, this embodiment is readily enabled if the adjustment engagement between the dual arm lock lever and the key side is achieved by the adjustment pin.

In view of the fact that the locking projection groove and the additional locking pin groove are made, it is also proposed that the locking projection groove and the additional locking pin groove are made in a cylinder inserted into the case hole of the lock.

In this case, it is recommended that the cylinder is press-fitted into the case bore to secure the grooves without turning.

In order to simplify production, it is particularly advantageous if the locking projection grooves and / or further locking pin grooves pass through the cylinder at right angles in the radial direction.

It is proposed that the cylinder is closed by a lock plug closure plate at its front end to make the cylinder inaccessible from anywhere and make its shape indistinguishable from conventional locks.

A flat key that allows full use of the possibilities opened by the lock according to the present invention includes a lock lever adjustment level change side region and an additional lock pin adjustment level change side region on at least one side thereof at a different distance from the key or the like. Distinguished by facts The fact that a suitable raw flat key has a molding area that is sufficiently raised to form a lock lever adjustment level change side area at a different distance from the key or the like and a molding area that is sufficiently raised to form an additional locking pin adjustment level change side area. Are distinguished by. In the raised forming area, it is only necessary to form grooves or milling parts in order to change the level. This groove or milling part can be made in the manufacturing plant with a key cutting method certified by the normal method with a normal machine without opening the method to an unapproved key imitation.

The lock of the present invention is suitable for both individual use and combination lock.

For the case in which the locks are used individually, each lock involved is subject to the different shapes of the double arm locking levers and the additional locking pins of the slots and / or to the various shapes of the double arm locking levers and to the By length and / or by varying lengths of additional locking pins and / or by designing lubrication of different pin tumblers and corresponding key blades and / or by designing various shapes of keyholes and corresponding keys. The locks of the basic structure are intended to be distinguished from each other. The basic structure of the lock according to the invention opens the way for much more deformability than conventional locks, relying on too difficult stepped changes in the key shape as a whole and / or additional step changes of bits of pin tumblers as a whole that are difficult. It will be appreciated that it is possible to widen the range of possible deformations through the selective use of dual arm locking levers and locking pins without the need for this.

Therefore, in the construction of a combination lock having a plurality of locks of the type according to the invention, the individual keys are assigned to the individual locks and the master key of the variant capacity is assigned to the plurality of locks, the individual locks being in pin tumblers. Different locks may be distinguished by different beater arrangements and / or by different key shapes and therefore by other keyhole shapes and / or by other additional locking pin arrangements. The range of lock modifications in such combination locks can be extended by changing the position of the double arm lock lever so that the individual locks differ from one another in the multiple locks by changing the occupancy of the slot by the double arm lock lever. It is even possible to use lock levers that can be released at different levels by simultaneously deviating from each locking projection groove within a limited angle range of the locking projection on the locking lever. Thereafter, a release surface is created with at least two surface depths, that is, a shallower surface depth and a deeper surface depth, and the master key has a release surface of average surface depth. In this case, the capacity variant master key (master key-main master key) can be provided in any desired way, and these keys contain a larger range of average levels of adjustment points as the capacity is increased.

The background basic idea of a combination lock based on the principle of a double arm lock lever in which the dual arm lock lever releases the lock plug to rotate in a larger turning range so that the master key can be used is published in French Publication No. 2 280 772 (practical). No. 74 27 050) cannot be deduced and the combination of the principle of the additional locking pin and the principle of the double arm locking lever should be protected independently.

The preferred form of combination lock consisting of a group of locks is distinguished from each other by different positions of the dual arm lock lever, in which at least some of the locks in the group can be released at the same level, and each individual key is released at the same level. Where possible, the locking lever has release surfaces of the same surface depth at the point where the corresponding lock is present, and the master key includes a release surface of the same surface depth for all lock levers that can be released at the same level of some or all locks in the group. Is made. In this embodiment, a locking lever can be used in which both locking lever protrusions deviate from the locking protrusion recess at only one turning point, which feature is of great importance because of the security safety of the lock.

These dual arm locking levers, which are particularly releasable at the same level, are identical in shape and dimension and, where appropriate, interact with the same length adjustment pins.

It is mentioned that the locking projection and the locking pin groove of the circumferential surface of the lock plug hole can always be easily and continuously made into continuous grooves.

It is also mentioned that in the locks of the present invention it is possible to position the additional locking pin adjustment side region of the key so that the key strength does not allow it to be reset at the deepest adjustment point of the continuous groove, as in Federal Republic of Germany Patent No. PS 20 03 059. This can be because the keys can be broken in two or excessively weak.

The accompanying drawings illustrate the invention in an exemplary embodiment.

1A, 1B and 1C, the lock case is provided with reference numeral 10 and is made in the shape of HAHN. The lock case 10 includes a lock plug hole 12 for receiving the lock plug 14. The inner circumferential surface of the lock plug hole is shown by 12a. The lock plug 14 includes a keyhole 16 in which a mating flat key 17 is received. The lock case 10 includes a case hole 18 for receiving the distal pin 19. The lock plug 14 is provided with a plug hole 20 adapted to receive the key pin 21. The key 17 includes a V-cutting key blade 22, which is a key pin and a distal pin 19 at the inner circumferential surface 12a of the lock plug hole 12 so that the lock plug 14 can be rotated. It is intended to align the separation surface between the pins 21. As a result, the upper bits 23 may be aligned between the distal pin 19 and the key pin 21 to enable the rotational action of the lock plug 14, especially when the V cutting level of the key blade is properly changed to the lock. Can be.

The lock plug 14 is made with slots 24 perpendicular to the axis on both sides of the keyhole 16. The slot 24 is milled with a side cutter and has a slot bottom 24a.

The slots 24 have bearing pins 25 passing through them parallel to the lock plug axis and received in corresponding holes in the lock plug. The dual arm levers 26 each comprise two locking projections 26a and 26b, which are respectively mounted on the arms 27a and 27b. The locking projections 26a, 26b are dimensioned to lie in coincidence with the inner circumferential surface 12a at both single angle positions shown in FIGS. 1A and 1B to release the lock plug for rotation. The adjusting pin 28 is adjacent to the arm 27a and displaceably supported in the adjusting pin hole 29 in the lock plug 14. This adjustment pin 28 has an inner end coupled to the key groove 30 in the mating flat key 17. The length of the groove 30 of the flat key 17 is determined by considering the length of the adjustment pin 28 and the shape of the locking lever 26 so that the two locking projections 26a and 26b have an inner circumferential surface 12a of the lock plug hole. ) And are dimensioned so that the lock plug 14 can be rotated.

Each side of the keyhole is provided with several slots 24, each of which is provided in the center between two pin tumblers 19, 21 which continue together in the axial direction.

The slots 24 extend into the stepped additional locking pin holes 31, and the additional locking pin holes are composed of a large diameter portion 31a and a small diameter portion 31b. In the additional locking pin hole 31, an additional locking pin 32 composed of a large diameter locking pin portion 32a and a small diameter locking pin portion 32b is accommodated. The additional locking pin holes 31 pass through the slot bottom 24a, respectively. The additional locking pin 32 has a rounded left inner end against the flat key 17 and a rounded outer end made to engage the locking pin recess 33 of the inner circumferential surface 12a of the lock plug hole 12. . The additional locking pin adjustment level change side regions 34 are aligned on the side of the flat key at the additional locking pin 32 level and engage with these additional locking pins 32, for example by means of a groove. The various levels of additional locking pin adjustment side zones 34 on the key consist of a grooved point and an unopened point as release surfaces. If the groove portion of the key is the same depth and the recesses 33 of the additional locking pin are also the same depth, then all the additional locking pins can be the same length.

In FIG. 1B, the additional locking pin 32 engages the additional locking pin recess 33. Not shown is that the various levels of corresponding side regions 34 on the key 17 include grooves as release surfaces for engagement of the inner ends of the additional locking pins 32, which grooves further lock pins 32. It is even sufficient to fully disengage the radially outer end of the additional locking pin from the locking pin recess 33 when it is pushed inward. When the lock plug 14 is rotated by the flat key 17, the additional locking pin 32 is flat key 17 by cam-like interaction with its outer side and the additional locking pin recess 33. Is pushed into the groove of). Reference numbers 50 are given to the keys and the like.

All slots 24 may be occupied by additional locking pins 32 or locking levers 26. Occupancy by the additional locking pin 32 and the locking lever 26 varies from lock to lock.

The lock lever 26 is pressed counterclockwise by the coil press spring 35, in which way the locking projections 26a, 26b are engaged by the mating flat key 17 to the inner circumferential surface of the cylinder plug hole 12. Set in line with (12a). In the basic position of the lock plug 14 shown in FIG. 1A, the locking projections 26a and 26b face the locking projection grooves 36a and 36b in the inner circumferential surface 12a of the lock plug hole 12.

Since the coil press spring 35 is received by a hole 37 whose diameter is larger than the width 24 of the slot, the side defining surface of the slot 24 is cut inward.

Reference numeral 38 is given to the area of the level change side on the key intended to interact with the adjustment pin 28. The groove 30 is received in these side regions.

FIG. 1f shows a cross sectional view of the leveling flat key 17 at the level of the groove 30 and the level change side region 38.

Figure 1c shows another locking lever that is identical in shape. This lock lever 26 is located at a point where the lock lever adjustment level change side area 38 is not grooved. Thus, a shorter adjustment pin 28 'is inserted at this point, and the locking lever 26 with the locking projections 26a, 26b is again placed coincident with the inner circumferential surface 12a.

Once the mating flat key 17 is inserted, the respective locking projections 26a, 26b of both locking levers 26 are released from engagement with the respective locking projection recesses 36a, 36b. The locking projection grooves 36a and 36b are formed as long grooves in the inner circumferential surface 12a.

If the mismatching key 17 'according to FIG. 1g is inserted, the two locking levers 26 take the position according to FIGS. 1d and 1e, and accordingly, the locking projection 26a according to FIG. The locking projection 26b is engaged with the locking projection groove 36b in accordance with FIG. 1E. Thus, the lock plug 14 is fixed against rotation.

In the embodiment, everything is provided with only two adjustment pins 28, 28 ′. If several slots 24 are occupied by the lock lever 26 and the grooves 30 are all the same length or there are no grooves at the other adjustment points of the level change side area 38, only two adjustment pin lengths are required. Do.

The additional locking pin 32 also acts as a stop if the mismatching key 17 'does not include a groove or too shallow a groove in the position of each additional locking pin.

2A and 2B show a modification. From these figures, it can be seen that the locking levers 126 are dimensioned so that their locking projections 126a, 126b do not engage the locking projection grooves 136a, 136b in a limited turning range. 2a and 2b show a lock with a registration key inserted in accordance with FIG. 2g. Here, it is assumed that slots 124 similar to those of FIGS. 1A and 1B are again occupied by the locking levers, and again long and short adjustment pins 128, 128 ′ are placed in these locking levers, respectively. 2A and 2B, the locking projections 126a and 126b are about the same distance from the inner circumferential surface 112a.

2C and 2D show the angular position of the locking lever 126 when the misaligned key 117 'of FIG. 2H is inserted. Thereafter, the lock plug 114 cannot be rotated.

2a and 2f show the lock according to FIGS. 2a and 2b when the master key according to FIG. 2i is inserted. The key 117 "includes a groove 130" of average depth in all adjustment positions of the lock lever adjustment side region 138 of varying levels so that all lock levers 126 thereof have the lock plug 114 rotated. Where possible. 2E also shows that the upper locking projection 126a is exactly coincident with the inner circumferential surface 112a while the lower locking projection 126b is at a maximum distance from the inner circumferential surface. Conversely, in FIG. 2F the locking projection 126 is at a maximum distance from the inner circumferential surface 112a while the locking projection 126b coincides with the inner circumferential surface 112a.

The softening according to FIG. 2i is the main master key and allows all locking levers 126 to be moved into the release point. This master master key has grooves 130 "of equal depth in the lock lever adjustment level change side region 138 without exception, and these grooves 130" have all lock levers with two protrusions 126a, 16b. 126 are the depths that are moved out of the locking protrusion recesses 136a and 136b. The embodiment according to figures 2a and 2b is particularly suitable for combination locks. In combination locks, the locks may be different, in particular by varying the occupancy of the slot 124 with the lock lever 126 and / or the additional lock pin 132. In addition, it is possible to distinguish through modification of the flat key. Also, as in most cases, a difference in position 23 can occur by varying the various bits according to FIG. 1a.

Obviously, the slot in which the locking lever is present does not need to have an additional locking pin in the selected embodiment according to the figures. However, it is appropriate to place additional locking pins out of the turning range of the locking lever such that there can be additional locking pins, like the locking lever, within each slot.

In the drawing of the key according to FIGS. 1e, 1f and 2g to 2i, the ungrooved adjustment points or release surfaces 51 are shown in bold lines, respectively. However, these adjustment points do not differ in the remaining shape.

3a and 3b schematically show a preferred embodiment of the combination lock as an exemplary embodiment. Similar parts are referred to 200 by the same reference numerals as in FIG. 1a. The letters G and H represent the arrangement for the points G and H, and the letters I and II represent the arrangement for two different locks I and II of the combination lock consisting of only two locks.

According to FIGS. 3A and 4A, the lock has only one locking lever 226GI at point G. FIG. Another lock of FIG. 3b has a single locking lever 226HII according to FIGS. 3b and 4b. The locking levers 226GI, 226HII are similarly dimensioned and each flat to the release level 230GI, and secondly to the release level 230HII via the same length adjustment pins 228GI or 228HII. Touch key 217I or 217II. It can be seen that the locking levers 226GI, 226aHII are placed coincident with the inner circumferential surfaces 212aI, 212aII, respectively. Therefore, there is a mating key in each lock so that each lock plug can be rotated.

It can be seen without difficulty that the key 217II does not fit the lock according to FIG. 3A and, conversely, the key 217I does not fit the lock according to FIG. 3B. In contrast, FIG. 3C shows a master key 217I + II with two release surfaces, namely (230GI + II) and (230HI + II). Therefore, the key 217I + II in FIG. 3C is a master key suitable for both the lock according to FIG. 3A and the lock according to FIG. 3B.

FIG. 3a shows that an additional locking pin 232HI can be placed at point H and FIG. 3b shows that an additional locking pin can be placed at point G. FIG. 5A and 5B show side views of the keys of FIGS. 3A and 3B, respectively. 5A shows the lock lever release surface 230GI in the key lock lever adjustment level change side region 238 and the additional lock pin release surface 250GII in the additional pin adjustment level change side region 234. Thus, the flat key of FIG. 5D shows the lock lever release surface 230H II of the lock lever adjustment level change side region 238 and the additional lock pin reservoir release surface 250G II of the additional lock pin adjustment level change side region 234. Indicates. Thus, the master key of FIG. 5C shows the lever unlocking surfaces 230GI + II and 230HI + II and the additional lock pin unlocking surface of the additional lock pin adjustment level changing side region 234 in the lock lever adjustment level changing side region 238. 250GI + II).

5A-5C also show that shaped parts 251 are provided on the keys 217I, 217II, 217I + II. These molded parts may not be necessarily the same for all three keys.

It is clearly possible to arrange the locking lever at other points of (A) to (H). In addition, locking levers may be provided for each corresponding release surface disposed at the mating key at the associated points of several points A to H in each lock of the combination lock. If no locking lever is provided, additional locking pins may be mounted.

As can be seen from FIGS. 4A and 4B, the locking levers 226GI, 226HII are identical to each other in shape and dimensions, so that at a single angular position they are corresponding locking projection grooves 236aGI, 236bGI, or 236bHII, 236bHII. Do not interlock with each other. In this embodiment, it is necessary that the release surfaces 230GI, 230HII and all other locking lever release surfaces have the same surface depth so that the master key 217I + II can be used. This means that the adjustment pins 228GI, 228HII are also the same length in the entire combination lock.

It is possible that lock levers which can be released at different levels are provided for each lock, for example at the same point. However, within these points it is important that the lock levers are used to distinguish the lock of the combination lock and that the same release surfaces 230GI, 230HII are used to enable the master key.

It will be appreciated that a significant number of possible variations are created by changing the position of the locking levers and the additional locking pins at points A to H. Even the locking pins 232H (Fig. 3a), (232GII; Fig. 3b), (230Ci; Fig. 4a), and (232DII; Fig. 4b) are also unlockable at the same level to enable the master key in this case.

At this point, it should also be appreciated that there may be slots necessary for receiving the locking lever and additional locking pin holes necessary for receiving the additional locking pin at the point where no locking lever and additional locking pins are provided. This means that the lock plugs for all locks are of the same structure, and the individual locks differ from each other only by changing the occupancy of the slot by the locking lever and by changing the occupancy of the additional locking pin hole by the additional locking pin. This is important for factory production unaffected by locks, thereby simplifying for the unskilled.

In an embodiment, the release surfaces 230GI, 230HII, 250HI, 250GII, etc., are each formed with grooves and the depths of the grooves 230GI, 230HII are the same and the depths of the grooves 250HI, 250GII are also the same. Obviously, it is also possible to obtain a release surface by milling the corresponding ribs.

It is also obviously possible to use other distinguishing features to distinguish the locks in one combination lock if the change of the lock based on the locking lever and the additional locking pin is evident in a very large combination lock, for example. For example, the shaping portion 251 of the key according to FIGS. 5a and 5b can be made different, in which case the master key shape is the keyhole of the lock according to FIG. 4a and the lock of the lock according to FIG. 4b. It should be used for a master key according to Figure 5c which can be used for both keyholes. It is also possible to distinguish between locks of a combination lock by changing the height and the number of varying bits of the point 223II or point 223I (FIG. 4A) in the lock according to FIG. 4B. In this case, the key blade V cutting portion of the master key should be formed such that in some locks or all locks of the combination lock, the master key moves the tumbler pin pairs to the release point.

In principle, exclusive use of the various bits 223I, 223II and / or key forming section 251 to distinguish the locks from each other in the combination lock, and the lock lever and It is also possible to use additional locking pins.

6 illustrates an embodiment in which the locking projection grooves 336a and 336b and the additional locking pin grooves 333 are made in the cylinder 353. This cylinder 353 is made of stainless steel and can in particular be pressed into the lock plug hole 312. It is practically simple to make the locking projection grooves 336a and 336b in this way. The fact that the cylinder 353 can be made of stainless steel is generally because the risk of abrasion of the lock is actually reduced compared to a lock in which the locking projection groove and the additional locking pin groove are formed directly in the softer lock case. Is actually advantageous. In this respect, for reasons of manufacture, the lock case is preferably made of a non-ferrous metal material, in particular brass, which is much more sensitive to abrasion than stainless steel. The locking projection groove and the additional locking pin groove can be made to pass through the cylinder 353 vertically, which makes the manufacturing much simpler.

6 also shows that the locking projection grooves 336a, 336b are rounded at the corners 354a, 354b, 354c, 354d, as opposed to other cross-sectional views. This can slide across corners 354a-354d without the risk of the additional locking pin 332 being gripped during rotation of the lock plug by the inserted key when the additional locking pin 332 is flush with the locking lever 326. It is important to ensure that.

FIG. 7 shows that the cylinder 353 is closed by the closure plate 355 of the lock plug 314, which is inaccessible and the shape of the lock from the front is no different from a conventional lock.

Reference is made to FIG. 6 for the concept of HAHN geometry. The HAHN shape of the lock 310 shown in FIG. 6 is shown in the German technical jargon as "HAHN shape".

It has already been mentioned that the additional locking pin hole in the lock plug may exist in any position even if no locking lever and additional locking pin are inserted into the individual lock. This also applies to the locking projection groove and the additional locking pin groove.

6 shows the following points.

The adjustment pin 328 is comprised from the outer side part 328a of a large diameter, and the inner side part 328 of a small diameter. Therefore, the pin hole 329 is comprised by the outer side part 329a of a large diameter, and the inner side part of a small diameter. In this way, it is ensured that the adjustment pin 328 cannot fall into the keyhole 322.

From FIG. 6, it can be seen that the cylinder 353 includes a slot 357. The marginal margin of this slot lies against the support surface 356 of the lock case 310 such that the cylinder 353 is fixed rotatably in the lock case.

Claims (27)

In particular, the lock case 10 having a HAHN shape, the lock plug 14 rotatably supported by the lock plug hole 12 in the lock case 10 and having a key hole 16 for receiving the registration key 17. Spring loaded pin tumblers (19) consisting of spring loaded circular pins required in case holes (18) and driven key pins received therein on plug blade (20) and adjusted by them. , 21), consisting of additional tumblers 26, 32 positioned between the series of pin tumblers 19, 21 in the axial direction, wherein the additional tumblers 26, 32 comprise a level change side region 38 of the key. 34, which is coordinated by 34 and interacts with the recesses 36a, 36b, 33 in the inner circumferential surface 12a of the lock plug hole 12, a) the lock plug has at least one of the keyholes 16 Are preferably spaced axially on both sides of the lock shaft Providing a slotted (24) being positioned to direct; b) Some of the slots 24 accommodate an additional tumbler 26 in the form of a double arm lock lever, the additional tumbler 26 centering on a lock lever pivot 25 parallel to the lock plug axis. On each arm 27a, 27b which is pivotally positioned and engages the locking projections 36a, 36b on the inner circumferential surface 12a of the lock plug hole 12. One arm 27a is in engagement with the locking lever adjustment level changing side region 38 of the key, spring-pressed and both projections 26a, 26b are engaged to engage the engagement key 17 in order to continue this adjustment engagement. Can be withdrawn from both locking projection grooves 36a and 36b by means of; c) the lock plug 14 is provided with additional locking pin holes 31 in which the hole axes are approximately in the middle plane of the slot and are cut into the shape of a cylindrical part in each slot side; d) at least some of the additional locking pin holes 31 coincident with the slots 24 not occupied by the dual arm lock lever tumblers 26, the ends adjacent to the key being The additional locking pin adjustment level change is adjusted by the lateral area 34 and the end far from the keyhole cam-wise interacts with the additional locking pin recess of the circumferential surface 12a of the lock plug hole 12 and the mating key. A lock characterized in that it is occupied by a spring-free additional locking pin-shaped tumbler (32) which can escape from each additional locking pin recess by rotating the lock plug (14). In the lock according to claim 1, each of the two locking lever protrusions 26a, 26b is separated from each locking protrusion recess 36a, 36b in a single angular pivot position of the double arm locking lever tumbler 26. Wherein both projections deviate simultaneously and coincide substantially simultaneously with the inner circumferential surface 12a of the lock plug hole 12. In the lock according to claim 1. The dual arm lock lever tumbler 26 and lock lever adjustment level change side zone 38 are accommodated in an adjustment pin hole 29 that connects each slot bottom 24a with the key hole 16. A lock, characterized in that the adjustment is coupled via (28). Lock according to claim 3, characterized in that the adjustment pin hole (29) has a diameter larger than the width of the slot and is cut into two slot sides by way of a cylindrical compartment. In the lock according to claim 1, a double arm locking lever-type tumbler (26) is received in each slot 24 side surface and a spring hole (37) which is cut into the slot bottom (24a) or one of them. The lock, characterized in that pressed by the coil pressure spring (35). In the lock according to claim 1, the locking lever adjustment level changing side region 38 of the key 17 and the additional locking pin adjustment level changing side region 34 of the key 17 are at different distances from the back of the key. The lock characterized in that it is set. In the lock according to claim 6, the locking lever adjustment level changing side region 38 of the key 17 is more in the key dorsal portion 50 than the additional locking pin adjustment level changing side region 34 of the key 17. A lock characterized by being in close proximity. In the lock according to claim 1, several, preferably all slots 24 are common to several double arm locking lever-type tumblers 26 on at least one side of the keyhole 16. Lock having a through bearing pin (25). Lock according to claim 3, characterized in that all double arm locking lever-type tumblers (26) are of the same construction. 10. In the lock according to claim 9, the different surface depths of the release surfaces 30, 51 assigned to each double arm lock lever tumbler 26 on the lock lever adjustment level change side area 38 are of different lengths. Lock, characterized by compensation pins 28, 28 '. In the lock according to claim 10, adjustment pins 28, 28 ′ having only two different surface depths of the locking level adjustment level change side regions 38 of the key 17 and thus only two lengths differ. Lock provided). In the lock according to claim 1, the additional locking pin-shaped tumbler and thus the additional locking pin holes 31 and / or the adjustment pins 28, 28 ′ and thus the adjustment pin holes 29 have a shortened diameter. Each having a smaller diameter hole portion (31b) near the keyhole and a larger diameter hole portion (31a) away from the keyhole. The lock according to claim 1, characterized in that the key (17) is a flat key. Lock according to claim 13, characterized in that the flat key (17) is contoured with a flat key. 2. The lock according to claim 1, characterized in that the slots (24) have a slot bottom (24a) that is milled and cut by a side milling cutter to be circularly curved. The lock according to claim 1, wherein the locking projection grooves 336a and 336b and the additional locking pin grooves 333 are made in a cylinder 353 which is specifically press-inserted into the case hole 312 of the lock 310. Featuring lock. In the lock according to claim 16, the cylinder 353 is slotted and fixed so as to be rotatable against the stop surface 356 of the lock case 310 at the slot edge thereof. And a lock disposed symmetrically with respect to the longitudinal center plane of the lock case (310). 17. A lock according to claim 16, characterized in that the locking projections (336a, 336b) and / or the additional locking pin grooves (333) are completely radially through the cylinder (353). Lock according to claim 16, characterized in that the cylinder (353) is closed at its front end by a closing plate (355) on the lock plug (314). The lock according to the first aspect, characterized in that the locking lever adjustment level change side zone 38 and the additional locking pin adjustment level change side zone 34 are at different distances from the key back 50 on at least one of the surfaces. Dragon flat key. Each of the molding zones raised enough to form the locking lever adjustment level changing side zone 38 of the flat key and the molding zone sufficiently organic to form an additional locking lever adjustment level changing side zone 34 is different from the key or the like. A blank for the flat key according to claim 20 characterized in that it is carried on a street. In the lock according to claim 1, for the individual use, by differentiating the occupancy of the slots 24 by the double arm locking lever tumblers 26 and the additional locking pin tumblers 32, or by the double arm. By other shapes of the locking lever-type tumblers 26 and, if appropriate, by other lengths of the adjustment pin 28, or by other lengths of the additional locking pin 32, or by another key blade 22. By means of different pin tumblers 19, 21, or by designing the other shape of the keyhole 16 and thus the key 17, which is distinguished from other locks of the same basic type. Lock made. A separate key 117 is assigned to each individual lock and a master key 117 'is assigned to a plurality of locks, the individual locks being assigned to the arrangement of the various other bits 23 in the pin tumblers 19, 21. 20. A combination lock with a plurality of locks according to claim 1, characterized in that it can be distinguished in a plurality of locks by means of various other key contours or by means of various additional locking pin arrangements. . 24. In the combination lock according to claim 23, each of the plurality of locks has a respective locking projection recess in the angular range of the occupied, finite angle values of the slots 124 by the double arm locking levers 126. Release surfaces 130, 151 having locking projections 126a, 126b on locking levers 126 that simultaneously deviate from 136a, 136b, at least two different surface depths, a lower surface depth and a deeper surface depth. A combination lock characterized in that it is different by varying the locking lever adjustment side area 138 of the master key 117 'including the individual key 117 and the adjustment points 130' of the average surface depth. Individual locks are rotatably supported in the lock case 110, in particular the HAHN shaped lock case 110, and the lock plug 114 having a key hole 116 to receive the individual mating key 117. ), Consisting of tumblers 126, which are adjusted by the level change side region 138 of the key 117 and interact with the grooves 136a, 136b in the inner circumferential surface 112a of the case hole 112. In multiple lock combination locks; a) the lock plug 114 is provided with slots 124 on at least one side of the keyhole 116, preferably axially spaced on both sides and positioned substantially perpendicular to the lock axis, b) these At least some of the slots 124 receive double arm locking lever-type tumblers 26, the tumblers 126 being pivotable about a locking lever pivot axis 125 parallel to the lock plug axis. Locking projections 126a, 126b positioned on the respective arms and engaged with the locking projection grooves 136a, 136b on the inner circumferential surface 112a of the case hole 112, and changing the lock lever adjustment level of the key. It has one arm that is in engagement with the lateral area 138 and is spring pressurized to continue this adjustment engagement, and both locking projections 126a, 126b are each lock projection recessed by separate mating keys 117. Can be withdrawn from 136a, 136b, c) The lock lever adjustment level change side region 138 of the individual mating key 117 has release surfaces 130 and 151 of at least two different surface depths which are a shallower surface depth 151 and a deeper surface depth. D) locking lever-type tumblers 126 have a finite angle of angular turning range in which both locking lever locking projections 126a and 126b deviate from the locking projection grooves 136a and 136b, and e) the master key. 117 'is a combination lock with a plurality of locks, characterized in that it has a release surface 130' with an average surface depth. At least some of the locks in the group are distinguished from each other by different positions A to H of the dual arm lock levers 226GI and 226HII, which are releaseable at the same level, and at the same level of each of the keys 217I and 217II. Locks 226GI and 226HII have release surfaces 230GI and 230HII of the same surface depth at points where they are present in the corresponding lock, and the master key 217I + II is unlockable at the same level. Consisting of a group of locks according to claim 2 characterized in that it comprises a release surface 230GI + II, 230HI + II of the same surface depth for all of the lock levers 226GI, 226HII of some or all of the locks. Combination lock. In the combination lock according to claim 26, the locking levers 226GI, 226GII, which serve to distinguish the locks in the lock group, are identical in shape and dimension and, where appropriate, the same number of adjustment pins 228GI, 228HII. Combination lock).

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