DE4219853C1 - Car-steering lock assembly - has coaxial rotary selector ring with shoulder working with driving one on core and control edge for ramp acting against spring catch - Google Patents

Abstract

The cylinder lock (10) has a housing containing a core (11) with tumblers. The core is rotated with a switch by the inserted key between the locking off-position (0) and other angular ones (I - III) in the on-direction (16). A rotary selector ring coaxial to the core has a shoulder working with a driving one on the core in the on-direction, and a control edge for a ramp face on a radial spring catch in the off-direction (17). In the on-direction, the catch has a steep stop on the opposite side to its ramp face acting against one on a radial protrusion, and at the end of a peripheral guide for the catch end. USE/ADVANTAGE - Compact and reliable repeater-start preventer and switch on car.

Description

The invention relates to a steering lock in the preamble of claim 1 specified Art.

Such a steering lock is such. B. known from DE 36 38 429 C2. The steering lock includes a lock cylinder linder, which consists of a cylinder housing and one accommodated therein There is a cylinder core. The cylinder core contains tumblers and is non-rotatably connected to an ignition switch. By means of an inserted The cylinder core can be keyed from a locking zero position can be transferred to other, angularly offset rotary positions.

About the two opposite directions of rotation of the cylinder core To be able to differentiate from one another is to follow, because of the corresponding functions performed on the electrical switch, the following Designation can be used. One facing away from the zero position Rotation is said to be named as "following", while conversely, a movement towards the zero position than in "Switch-off sense" should apply.

If you want the steering lock from damage due to incorrect operation protect, so it depends on the different rotary positions of the cylinder core only in a certain order. A steering lock for motor vehicles has a rotary end position of the cylinder core, which corresponds to a "start" of the starter. This End position is preceded by an intermediate position in which, via the connected electrical switch, the "drive" function of the motor vehicle stuff is turned on. In this case, it depends on the cylinder do not core again from the intermediate position to the To be able to return the end position if the cylinder is in front  core has already been in the end position and in the switch-off direction has reached the intermediate position. Conversely, for example rotation in the switch-on direction starting from the zero position without any problems can be continued from the intermediate position to the end position.

In the known steering lock you built position pegs, spring return conditions as well as repeat locks in the area of the electrical switch a. This prevented a compact structure and trouble-free Mode of operation of the steering lock and the electric switch.

The invention has for its object a steering lock in the Oberbe handle of claim 1 to develop the type that a reliable, has space-saving repeat lock and the electric switch allowed to carry out in small dimensions.

This is according to the invention by the measures listed in the characterizing part of claim 1 achieved, which have the following special meaning.

In the invention, the starter lock is in the lock cylinder integrates and works immediately. All that is required is a switch rings and a suitable profile of the cylinder core, whereby only to be provided a spring-loaded bolt and its locking member need. A locking element normally only serves to secure the position of the cylinder core in different rotary positions, but that fulfills that Locking element in the invention, the other new function with the Switching ring to cooperate to prevent repetition in the to control defined in the manner mentioned. Because the components the invention are inside the lock cylinder, they can attack directly on the cylinder core, on whose locking it is the defined rotation sequence arrives. This ensures reliable Way of working. The electrical switch no longer needs these components and is characterized by small dimensions.

The invention proposes two ways of solving this problem before that in claim 2 on the one hand and in claim 14 on the other hand are explained in more detail, each of these solutions having its own inventive Importance. The solution according to claim 2 stands out due to a particularly space-saving design because of the switching ring  at the top end of the cylinder core under one the cylinder housing overlapping steel cap is arranged. There is a small one axial height. Further advantages are from subclaims 3 to 13 removable, of which the one-piece design of the locking member and the spring-loaded bolt by an angular leaf spring is to be emphasized with cranks. This allows the steering lock realized according to the invention in a very simple and space-saving manner lichen.

The other solution for a reliable starter lock according to Claim 14 is characterized by a particularly robust design. Here is the switching ring with the locking element and the spring-loaded Latch arranged at the lower end of the cylinder core and worried at the same time the coupling with the downstream electrical switch. Vastness Further advantages and measures result from the subclaims 15 to 25, the following description and the drawings.

In the drawings, the invention is in two exemplary embodiments, partially shown schematically. Show it:

Fig. 1 is a side view of the steering lock in dash-dotted lines, indicated mounting location for a steering column casing tube,

Fig. 2 is a cross sectional view through this mounting area as a cladding tube with the lower portion of the steering lock,

Fig. 3, the end-side plan view of the capped steering lock of Fig. 1 with various mutually angularly offset rotational positions of a respective cylinder core,

Fig. 4 shows a longitudinal section through a preassembled of the steering lock of Fig. 1 to 3 prior to its installation in the tubular casing,

Fig. 5 shows the inside view of a integrated in the steering lock of Fig. 4 key withdrawal fuse with a dot-dash lines, cooperating component on the cylinder core,

Fig. 6 is also in longitudinal section, the upper portion of the steering lock of Fig. 4, but along the angled, marked in Fig. 7 with VI-VI section line,

Fig. 7, 8, 9 and 10 by the steering various cross sectional views included in FIG. 4 along the local height different section lines VII-VII, VIII-VIII, IX-IX and XX,

FIGS. 11 and 12 in enlargement, the cross-sectional side view and plan view of an important component of the steering lock of Fig. 4, namely, a switching ring,

Fig. 13, in enlargement, the end view of the used in the steering lock of Fig. 4 cylinder core with graphically highlighted height different profile areas that cooperate with the control ring of Fig. 1 and 12,

Figs. 14 to 18 are schematic plan views of the steering lock of Fig. 4 at distant steel cap in the four in Fig. 3 illustrated rotational positions, that show the functionality of the steering lock at a Anlaßwiederholsperre, the components not directly involved have been omitted,

Fig. 19, the lower portion of the steering lock according to the invention in a second, compared to FIGS . 4 to 18 modified Ausfüh and

Figs. 20 to 24 in a position corresponding to FIGS. 14 to 18, the analog representation of rotational positions of the relevant components of the alternative steering lock shown in Fig. 19.

The steering lock 10 shown in the first embodiment of FIGS. 1 to 18 comprises a lock cylinder which consists of a two-part Zylindergehäu se 21 , 22 and a cylinder core 11 accommodated therein with its tumblers 12 indicated only by dash-dotted lines. The cylinder core 11 has a key channel 13 for receiving a in Fig. 16 angedeu ended wrench 14, with which the cylinder core 11 from the designated in FIG. 3 zero position O in three other during operation of the steering to lock resultant rotational positions I, II and III can be converted whose angular offset can be seen from the angular amounts α, β, γ recognizable in FIG. 3. In addition, there is an assembly position IV to be set in the assembly case of the locking cylinder, which is offset in the opposite direction by an angle of rotation δ of FIG . The cylinder core 11 is provided with a specially profiled front end 15 , which can be seen in FIG. 13 on an enlarged scale, in front of which there is a matching switching ring 30 , the appearance of which can be seen from FIGS. 11 and 12 and its function in connection with FIG. 14 to 18 will be described in detail. The switching ring 30 and the cylinder core 11 with its head-shaped widening located at the upper end 15 are mounted in the upper part 21 of the cylinder housing, namely under a steel cap 23 which closes the steering lock 10 on the end face and which surrounds a circumferential collar of the cylinder housing 21 . Through an opening 28 of the cap, as shown in Fig. 3 shows 11 available to the central region of the cylinder core with its key channel 13 for the wrench 14.

The two parts 21 , 22 of the cylinder housing are plugged into one another and pinned to one another, an electrical switch 20 being held in position between them. The actuating part of the electrical switch 20 having the movable contacts is then coupled in a rotationally fixed manner to the cylinder core 11 . These movable contacts are associated with other fixed contacts in the electrical switch, which take effect in the aforementioned rotation positions O to III and determine various operating states of the motor vehicle. In order to be able to clearly describe the direction of rotation, according to the function of the electrical switch 20, a rotation which is directed away from the zero position O and is marked by the arrow 16 should be referred to as occurring in the "switch-on sense", while vice versa, which relates to the zero position O Directed rotation, according to the counter arrow 17 illustrated in FIG. 3, is to take place in the "switch-off direction". Only in the zero position O can the key 14 be inserted into or removed from the cylinder core 11 , because only then can the tumblers 12 move into the diametrical locking grooves 24 best seen in FIGS . 6 and 8 in the upper housing part 21 due to their tumbler springs . When the key 14 is inserted, the tumblers 12 are sorted by the proper key 14 onto the diameter of the cylinder core 11 . Then the cylinder core 11 can be transferred in the switch-on sense 16 into the further rotary positions I to III.

In the present application on a motor vehicle, a radio is switched on in the first rotational position I via the electrical switch 20 . When turning 16 further into the second rotational position II, the vehicle is in its "travel" function, where the engine is running, if the "ignition" of the engine has previously taken place in the extreme rotational position III via the electric switch 20 . This second rotary position II will hereinafter be referred to as the “intermediate position” and the third rotary position III as the “end position”. In these rotational positions I to III, there are no corresponding locking grooves 24 in the upper housing part 21 , which is why it is not possible to remove the inserted key.

6 and 9 is evidence of FIGS. In the cylinder housing upper part 21 is a two-legged torsion spring 25 which is mounted under pretension in a housing opening 26, to 'rests, while the other leg 25' there with their one legs 25 'having a rotationally fixed manner to the cylinder core connected, best seen in FIG. 9 cooperates nose 18 , for which the upper housing part 21 has a corre sponding ring recess 27 . As can be seen from FIG. 9 in connection with FIG. 3, the torsion spring 25 ensures an independent return position of the cylinder core 11 from the end position III in the switch-off direction 17 to the intermediate position II. In the first rotational position I and in the zero position O this is Torsion spring 25 ineffective. The electrical switch 20 need not have any space for such return springs.

When the steering lock 10 is in operation, it is important to prevent a rotation in the switch-on direction 16 from the intermediate position II into the end position III again if the cylinder core 11 has already been brought into the end position III for the purpose of starting the machine and because of this the effect of the aforementioned compression spring 25 has already been returned to the intermediate position II. This objective is known as the "repeat block". This is to prevent damage to the starter and the components of the motor vehicle interacting therewith. The steering lock 10 according to the invention achieves this in a space-saving manner by an interaction between the cylinder core 11 and the already mentioned switching ring 30 in conjunction with a bolt 41 and a locking member 42 , the structure and function principle of which is best based on the schematic rule's Fig. 14 to 18 can be seen.

Fig. 14 shows the situation in the zero position O resultant. The dashed hatched switching ring 30 is arranged coaxially to the cylinder core 11 and rotatably mounted on this. For this purpose, the upper end face 15 of the cylinder core 11 is profiled in a special way. This initially includes a radial projection 19 which , in this exemplary embodiment, is formed in one piece with the cylinder core 11 and has a convex profile. The radio projection 19 has a stop 43 which projects over the adjacent circumference of the cylinder core 11 and which points in the direction of the arrow shown in FIG. 14 and determining the switch-on direction of rotation 16 . The switching ring 30 is provided with a projecting outer cam 39 just over its circumference, which determines a control edge 33 , which is oriented in the direction of the opposite arrow 17 , in the turn-off direction. Between the switching ring 30 and the cylinder core 11 there is a rotation limit 34 to 36 to be described in more detail; 44 to 45 , the position of which in the zero position O of FIG. 14 has resulted from the preceding operating conditions according to FIG. 18 to be described in more detail. The rotation limit basically consists of an engagement element 34 provided here on the switching ring 30 , which protrudes into a rotary groove 44 belonging to the cylinder core 11 . Due to the aforementioned, previously expired processes, the engaging element 34 with its, seen in the switch-on direction 16 , front shoulder 35 in contact with a front groove limiter 45 , while the rear shoulder 36 through a defined free cut of the rotary groove 44 from the corresponding rear groove limitation 46 is removed. In the zero position O, a specific position of the switching ring 30 is not yet important; for example, the switching ring 30 with its control edge 33 located on the outer cam 39 could also be in contact with the stop 43 of the radial projection 19 .

With the key 14 inserted, the cylinder core 11 can now be moved in the switch-on direction 16 from the zero position O of FIG. 14 to its first rotational position I, which can be seen in FIG. 15 and whose angle of rotation α has already been described in connection with FIG. 3. The rotation of the cylinder core 11 can initially be transferred to the switching ring 30 by friction, which is why it is more or less entrained. Either now, as can be seen from FIG. 15, or during the further rotation 16 , at least at the latest when reaching the intermediate position II of FIG. 16, a steep counter-locking step 31 on the switching ring 30 comes into contact with the locking element 42 already mentioned. Characterized the further driving of the locking ring 30 is first stopped when the cylinder core 11 is further rotated in Einschaltsinn sixteenth Then the stop 43 moves from the radial projection 19 towards the control edge 33 of the ring cam 39 . Until then, as can still be seen from FIG. 15, there was a free gap 40 between the cylinder stop 43 and the cam control edge 33 . When turning further in the switch-on sense 16 , however, the gap 40 closes and it comes to the contact shown in FIG. 16 in a closed joint 40 ', which is to be referred to below briefly as “contact gap”.

If the contact joint 40 'is present, the cylinder core 11 takes the switching ring 30 with the further rotation 16 . Thus, the Radialvor jump 19 also fulfills the function of a "take-along shoulder", while the ring cam 39 acts as an associated "counter shoulder". In the intermediate position II shown in FIG. 16, the cylinder core 11 has already taken the switching ring 30 by a further amount in the switch-on direction 16 . The latching member 42 resting on the front flank 31 is, as illustrated by the arrow 47 in FIG. 15, spring-loaded in the direction of the cylinder axis 50 which is illustrated there and also shown in dash-dotted lines in FIG. 1. With this entrainment, the latching member 42 therefore overcomes a front latching elevation 38 determined by the counter latching shoulder 31 and moves into a latching depression 37 , which is also determined by a further rear latching elevation 38 '. The intermediate position II of the switching ring 30 achieved in this way is thus secured via the latching member 42 . When closing the gap 40 , the above-described engaging element 34 on the switching ring 30 of the rotary limbs tongues has moved into an angularly offset position relative to the rotary groove 44 on the ring side. Because the entrainment between the cylinder core 11 and the switching ring 30 takes place via the contact joint 40 ', however, the rear groove limitation 46 does not yet have to touch the rear shoulder 36 of the engagement element 34 .

The bolt 41 already mentioned above could still be ineffective in the first rotational position of FIG. 15. During the further rotation 16 in the switch-on sense, the bolt 41 came with its bolt end 49 to lie against a here radially profiled slide 51 in the peripheral region of the outer cam 39 . The latch 41 is spring loaded in the direction of the arrow 48 illustrated in FIG. 16 in the direction of the cylinder axis 50 , as a result of which its latch end 49 is slidably guided on the track 51 .

When turning further from the intermediate position II of FIG. 16 in the end position III of FIG. 17 in the switch-on sense 16 , the switching ring 30 is also taken over the described contact joint 40 by the cylinder core 11 . In this case, the bolt end 49 slides over the closed Berührungsfuge 40 'to the radial outer surface 52 of radial projection 19, which thus generates a slideway 51 continue leading slide guide 52 for the latch 41st The bolt 41 is pressed radially away from its spring load 48 and thus strives to move in the direction of the cylinder axis 50 . In this exemplary embodiment, the sliding guide 52 extends, starting from the cylinder stop 43 , in the switch-off direction of rotation 17 , which is likewise illustrated in FIG. 17, while the aforementioned slide track 41 on the switching ring 30 extends from its cam control edge 33 and continues in the switch-on direction of rotation 16 . In the rotation 16 from the intermediate position II of FIG. 16, the locking member 42 , contrary to its spring load 47 , is lifted out of the locking recess 37 and passes over the rear locking elevation 38 'and comes to lie beyond the rear flank 32 there. During further rotation 16 in the direction of the end position III of FIG. 17, the rear flank 32 increasingly moves away from the latching element 42 . The locking member 42 is ineffective.

After the key 14 has been released, the cylinder core 11 is automatically moved backwards in the switch-off direction 17 of FIG. 17 due to the torsion spring 25 acting on it at the beginning. The switching ring 30 can be taken along by frictional engagement, because its engagement element 34 belonging to the rotation limitation is still located in the region of the rear groove limitation 46 of the rotation groove 44 . Such take-back in the opening sense 17 of the switching ring 30 stops in any case, the locking paragraph 32 before this bolt 17 has the bolt 41 in the region of the cylinder-side to 43 comes. The cylinder core 11 can continue to rotate in the opening direction 17 with respect to the stopped switching ring 30 until the torsion spring 25 has turned the cylinder core back into the “intermediate position”, which is shown in FIG. 18. The key 14 is in the same angular position as in FIG. 16, but the switching ring 30 assumes an angularly offset position. During this rotation in the deactivation direction 17 , the cylinder-side stop 43 moves away from the held control edge 33 on the switching ring 30 , which is why the contact is eliminated and in between the gap 40 already described in connection with FIG. 15 again arises. Starting from the end position III of FIG. 17, the locking end 49 slides along the cylinder-side slideway 51 , but snaps radially behind the cylinder-side stop 43 due to the acting spring load 47 . The latch 41 is now radially lowered in the gap 40 . The bolt 41 has a pointing in the power-on direction of rotation 16 steep shock 53 which lies in front of the stop 43 of the convex radial projection 19 and therefore from the intermediate position 11 of FIG. 18 in the final position III of FIG. 17 directed rotation Einschaltsinne 16 basically excludes. A rotation 16 of the cylinder core 11 is blocked. There is a so-called "repeat lock".

Starting from the intermediate position II of FIG. 18, however, a wide rotation in the opening sense 17 can be easily achieved. When turning 17 of the cylinder core 11 , the aforementioned rotation limitation between the cylinder core 11 and the switching ring 30 is effective; The already mentioned and shown in FIG. 18 front groove limitation 45 of the cut rotary groove 44 abuts on the front shoulder 35 of the engaging element 34 and takes the switching ring 30 with it when it is turned off 17 . The until then the locking paragraph 32 from the switching ring 30 engaging locking member 42 is now again, against its Federbela stung 47 , pushed radially away, runs over the rear elevation 38 ', then, during the further rotation 17 also the front locking elevation 38 and falls beyond that located on the switching ring , already described counterrack set 31 radially again.

During this further rotation in the opening sense 17 , the bolt 41 finally comes to rest on the control edge 33 of the switching ring 30 delimiting the gap 40 , but where the blockage described in the switch-on direction of rotation 16 does not take place now. The bolt 41 has one of the control edge 33 facing ramp slope 54 , which is opposite to the above-described bolt joint 53 . The on the Drehbegren voltage 35 , 45 entrained by the cylinder core 11 switching ring 30 moves with its control edge 33 against the run-up slope 54 and lifts the bolt 41 increasingly out of the gap 40 until its bolt end 49 moves back onto the slide 51 , which is in front of the Control edge 33 is located. In the further reverse rotation 17 , the zero position O of FIG. 14 is finally reached again via the first rotational position I of FIG. 15. The movement cycle has closed. The front raster elevation 38 , which is limited by the counter-latching paragraph 31 described, has a greater radial height than the latching paragraph 32 on the rear raster elevation 38 '.

As already mentioned, in the present case the bolt 41 and the latching member 42 are arranged in the area of the upper end 15 of the cylinder core 11 and consist of the two legs 55 , 56 of an integral, angular leaf spring 57 . The one angle leg 56 is held at both ends on stationary bearing points 58 , 59 , the one bearing point 59 acting in the apex area between the two legs 55 , 56 . The locking member 42 arises from a central offset of this leg 56 and its spring load 47 results from a deformation of the leaf spring. The bolt 41 is produced by an offset at the free end of the other angle leg 55 of this leaf spring 57 . His spring-loading 48 results from the bending elasticity of this side only held at the bearing point 59 angle leg 55th The leaf spring 55 , 56 can be accommodated in the height range of the switching ring 30 shown in FIG. 4 at the upper end 15 of the cylinder core 11 , as can be seen from FIG. 7. The leaf spring 57 is located below the steel cap 23 .

In Fig. 7, the concrete configuration of the above-described angle-shaped leaf spring 87 in the cylinder housing shell 21 is shown with its two bearing points 58, 59. The radial projection 19 is still in contact with the ring cam 39 in the zero position O there. The effectiveness of the above-mentioned starting repeat lock begins when the above-described stop 43 has passed through the angular amount α + β shown in FIG. 7, which, as shown in FIG. 3, corresponds to the rotational path between the zero position O and the intermediate position II.

The physical design of the switching ring 30 is seen in FIGS. 11 to. In this case, the engagement element 34 which serves to limit the rotation is formed on the inner surface of the outer cam 39 . The engagement element 34 here consists of a segment which is set somewhat lower than the plane of the ring body, which also applies to the cam 39 according to FIG. 11. In the upper area, the switching ring 30 has a funnel-shaped bevel 60 , into which the steel cap 23 shown in FIG. 4 can engage with its opening edge 28 .

The physical design of the cylinder core 11 belonging to the switching ring of FIGS. 11 and 12 at the upper end 15 is shown in FIG. 13. The rotary groove 44 here consists of a segment cutout, the segment edges 45 , 46 of which form the above-described front and rear groove boundaries of the rotary groove 44 . In FIG. 13, the different height ranges of the cylinder front end 15 are highlighted by different hatching. The dotted, interrupted by the segment section 44 annular surface 61 lies in a central height plane and serves as a support surface for the underside 62 recognizable in FIG. 11. A circular body 63 which engages in the mounting case in the of Fig. 11 and 12 apparent circular opening 64 of the control ring 30 thereby rotationally supporting the control ring 30 to the cylinder core 11, this annular surface 61 rises. The key channel 13 opens out from the front in the axially projecting circular body 63 . The axial height of the circular body 63 ends before the described funnel-shaped bevel 60 of the switching ring 30 , which is why the steel cap 23 can engage with its cap opening 28 in the manner already mentioned, which can be seen in FIG. 4. At its end 15 , the cylinder core 11 is in turn provided with a Positionra ste 65 , which can also be seen in the drawing diagram of FIG. 14 and, as shown in FIG. 15, cooperates with the locking member 42 there and therefore determines this first rotational position I. In the zero position, the locking member 42 is in the region of a curly edge recess 66 of FIG. 13. In the case of the intermediate position II, the locking member 42 is in an edge cutout 67 which can extend into the region of the end position III of FIG. 17 . In the punktschraf fierte annular surface 61, finally, is also, as Fig. 13 shows the Radialvor jump 19 integrated, the stop 43 steeply drops to the above-described cut edge 67 to the located there in the case of assembly, the control edge 33 on the outer cam 39 of the switching ring 30 to cooperate in the manner shown in FIGS . 14 to 18 nen.

In Figs. 19 to 24 an alternative embodiment 10 'of the erfindungsge MAESSEN steering lock is shown, where the same reference numerals as have been described in the first embodiment, the steering lock 10 used to denote corresponding components. Only the most important components are shown schematically. When the steering lock 10 ', the switching ring 30 ' is pot-shaped and arranged at the lower end 29 of the cylinder core 11 there , a pin 68 protruding from the bottom of the pot connected non-rotatably to the cylinder core 11 , which is non-rotatably coupled to an actuator of an electrical switch, not shown is. There are the following further Bauun differences of this steering lock 10 'compared to the previous embodiment 10 .

Rotationally with the cylinder core 11 diametrically continuous radial guides 69 are provided, in which one end of the bolt 41 'and the other a locking member 42 ' are mounted for longitudinal displacement. When turning 16 of the cylinder core 11 , the locking member 42 'and the bolt 41 ' are taken along. While the bolt consists of a longitudinally movable locking bolt 41 ', the locking member is a locking ball 42 ' ausgebil det here. Between the mutually facing inner ends of the locking bolt 41 'and the locking ball 42 ', a spring member 74 is arranged, which presses these two elements diametrically apart. In Fig. 19, which shows the zero position O of the steering lock 10 ', the Riegelbol zen 41 ' and the detent ball 42 'abut against the inner surface 75 and 51 ' of the switching ring 30 'and are therefore in their depressed position.

In this case, the radial projection consists of a Konkavprofil 70 which an only fragmentarily located on the inner surface in Fig. 21 the cylinder housing 20 is shown. This radial projection 70 has a stop 71 , but this is oriented at the steering lock 10 'in the turn-off direction 17 . Opposite the stop 71 , the radial projection 70 is delimited by a counter stop 72 , which is oriented in the direction of rotation 16 when the switch is turned off. The radial projection 70 takes over the steering lock 10 'at the same time the function of an element of a rotation limitation, which is here, however, generated between the switching ring 30 ' and the cylinder housing 21 . The associated rotary groove of this rotation limit here consists of a segment cutout 73 in the switching ring 30 ', one of which, the groove-free cut-out cutout limit 33 ', is also the control edge for the locking bolt 41 '. The opposite cut-out limitation 76 interacts with the counter-stop 72 to limit rotation. The latter is in the zero position O shown in FIG. 20.

By turning the inserted key 14 , starting from the zero position O of Fig. 20, the cylinder core 11 is rotated in the switch-on sense 16 , the locking end 49 'on a slideway 51 ' formed by the inner ring surface of the switching ring 30 'towards it limiting control edge 33 'on the switching ring 30 ' is guided, which is oriented here in the turn-off direction 16 . During this rotation 16 , the first rotary position I shown in FIG. 21 is finally reached, where the detent ball 42 'comes to rest on a rear flank 78 of a radial inner cam 77 pointing in the direction of rotation 17 which is switched off. When turning 16 of the cylinder core 11 , the rotation is transmitted via the locking ball 42 'to the rear flank 78 and thus to the switching ring 30 ', which is why in this steering lock 10 'the locking member 42 ' also the function of a driving shoulder for the switching ring 30 'in the Direction of rotation 16 forms, while the rear flank 68 is the associated counter shoulder.

With this further rotation 16 ', the intermediate position II shown in FIG. 22 is finally reached. About the acting on the inner cam 77 locking ball 42 ', the annular control edge 33 ' has come into contact with the stop 71 of the stationary radial projection 70 . In the rotational position I of Fig. 21 still open gap 40 has been closed increas ingly and has led to the well in this steering lock 10 'entste Henden Berührungsfuge 40'. A further rotation of the switching ring 30 'in the switch-on sense 16 via the intermediate position II of Fig. 22 is stopped.

When turning 16 into the end position III shown in FIG. 23, the detent ball 42 'runs over the rear flank 78 onto the radial inner cam 77 and falls on its front flank 79 pointing in the direction of rotation 16 . A depression provided as a position catch in the inner ring surface 75 in FIG. 20 need not be realized. It is important that the closed contact joint 40 'at the transition to the end position III of Fig. 23, so that the resilient locking end 49 ' of the annular slide 51 'on the slide guide 52 formed by the konka ven inside of the radial projection 70 ' can continue to run. This sliding guide 52 'extends, contrary to the first embodiment of the steering lock 10 , here from the cam-side impact 71 in the direction of the turn-on rotation 16th As can further be seen from FIG. 20, the front and rear flanks 79 , 78 determine an inner cam width 77 ′, which is the same as the angular distance between the end position III of FIG. 23 and the intermediate position II of FIG. 22.

If the cylinder core 11 is turned back from the end position III in Fig. 23 in the switch-off sense 17 , the switching ring 30 'is taken along by the detent ball 42 ' initially resting on the rear flank 79 of its inner cam 77 , while the opposite bolt end 49 'of the locking bolt 41 ' on the slide guide 52 'slides along, which is formed by the radial inner surface of the fixed radial projection 70 . As a result, the control edge 33 'moves away from the stop 71 of the Radialvor jump 70 until finally the cut-out limit 76 pointing in the direction of rotation 17 stops at the counter stop 72 of the Radialvor jump 70 and thus a further rotation 17 of the switching ring 30 ' ends. This again creates a gap 40 between the control side ringseiti gene 33 'and the projection-side stop 71st The bolt bolt 41 'falls into the gap 40 when the intermediate position II shown in FIG. 24 is reached. In these circumstances, a rotation of the cylinder core 11 in the switch-on sense 16 is excluded because the locking bolt 41 'is in front of the stop 71 with a steep push 53 pointing in the direction of rotation 16 and therefore blocks such a rotation 16 . Only rotation in the switch-off sense 17 is possible.

When turning further from the intermediate position II of Fig. 24 in the switch-off sense 17 , the locking bolt 41 'with its here also bevel 54 ' on the control edge 33 'of the switching ring 30 ' ascends and is lifted out of the gap 40 . The switching ring 30 'is stopped in its movement 17 because of the unchanged system of its cut-out limitation 76 on the counter stop 72 . The detent ball 42 'is thereby lifted up over the front flank 79 of the inner cam 77 on the ring side, passes over the inner cam 77 and comes to lie beyond the rear flank 78 on the ring side on the inner ring surface 75 , along which the detent ball 42 ' is again in the zero position O of FIG. 20 can move back. The work cycle is closed.

As can be seen from FIGS. 1 to 10, the steering lock 10 is intended to control a locking pin 90 as a function of the rotational position via a key removal 80 that can best be seen in FIG. 5. As can be seen from Fig. 4, the locking pin 90 in the lower part 22 of the cylinder housing in the direction of arrow 91 leads ge movable. The still to be described special key removal lock 80 ensures that in the zero position O of the cylinder core 11 with the key 14 removed, the locking pin 90 can move into one of several locking receptacles 92 , which, as shown in FIG. 2, are located in the circumferential area of a steering wheel column 93 . Then there is the extended locking position 90 'of the locking bolt shown in broken lines in FIG. 4. In all other rotary positions I to III and with the key still in the zero position O, however, the locking pin is in the extended position 90 shown in FIGS. 2 and 4, where it is drawn into the lower part 22 of the cylinder housing and is opposite the locking receptacle 92 is disengaged. His "release position" is then available.

As already mentioned at the beginning, the steering lock 10 is present as a complete structural unit which, in addition to the cylinder core 11 , the tumblers 12 , the cylinder housing 21 , 22 and the electrical switch 20, also includes the key removal lock 80 and the locking bolt 90 located thereon. This unit is drawn in solid lines in Fig. 1. A steel tube 94 is shown there in dotted lines, which, as can best be seen from FIG. 2, runs transversely to a casing tube 95 surrounding the steering column 93 and is welded there. According to the push arrow 91 in Fig. 1, the lifting movement of the locking pin between a locking and release position 90 ', 90 is oriented in the direction of the cylinder axis 50 . Depending on its rotational positions O to 111 , the cylinder core 11 can control the locking pin 90 via the key withdrawal lock 80 by means of a cam track 100 which is part of a control ring 101 . The control ring 101 is coupled to the cylinder core 11 via a bayonet connection and is rotationally fixed to the cylinder core 11 by means of a spiral tension pin 102 .

To assemble the assembly of Fig. 1 in the steel tube 94 , a push button 103 can be provided in the peripheral region of the upper housing part 21 , the formation and spring loading of which is best seen from Fig. 8 ersicht. This allows the assembly to be snapped into the steel tube 94 , where a recess corresponding to the push button 103 , not shown, is provided. The push button 103 can only be pressed in in a specific rotational position of the cylinder core 11 , for which purpose a recess 104 which can be seen in FIG. 8 is provided in the peripheral region of the cylinder core 11 . In this rotational position of the cylinder core 11 , the recess 104 is aligned with the push button 103 and can only be achieved by inserting the key in the cylinder core 11 and rotating it accordingly. Also for the installation and removal of the cylinder core 11 with its tumblers 12 in the upper housing part 21 a certain, with the associated key 14 executable rotational position of the cylinder core 11 is required, which is designated in Fig. 3 with IV and referred to as the "mounting position" net shall be. This assembly position IV is not easily accessible with the intended, above-described rotary movement 16 , 17 . An opposite rotation by the angle α shown in FIG. 3 is required. The usual range of rotation of the cylinder core 11 is limited to the angular range α, β, γ or the above-described rotational positions O to III. The structural unit of FIG. 1 mounted in the steel tube 94 via the push button 103 is secured by a threaded screw which is screwed into a threaded bore 105 shown in FIGS . 1 and 8. This threaded screw ensures a rattle-free connection of the assembly to the steel tube 94 .

The key withdrawal lock 80 has, as the first, the link 14 engaging link of its link chain a radially guided in the cylinder core th sliding block 81st As can best be seen from FIG. 6, its inner end 82 is supported on the key 14 located in the key channel 13 . The radially outwardly directed outer end 83 of the sliding block 81 interacts with an axial lifting rod 84 which is mounted in a longitudinally displaceable manner in the cylinder housing 21 and which is connected via a telescopic extension 85 to the outer section 86 of a pin slide 86 , 87 . This outer axial section 86 is offset parallel to the cylinder profile of the housing 81 relative to the other, inner axial section 87 , which in turn is connected via a telescopic extension 97 with the ratchet pin 90 , which can also be seen from FIG. 4. The bolt slide 86 , 87 is loaded by a strong compression spring 88 and strives to transfer the locking bolt connected to it in the sense of the push arrow 91 already mentioned in the dash-dot locking position 90 'of FIG. 4. This compression spring 88 engages at one end on the offset of the two bolt slide sections 86 , 87 and is supported at the other end in the cylinder housing 21 .

At the subsection 87 of the bolt slide there is a radial bore 107 , in which a guide pin 110 is received so as to be longitudinally displaceable. In a transverse bore of the guide pin 110 engages the free end of a spring wire 106, the spring-loaded radially the guide pin 110 in the direction of the aforementioned cylinder axis 50 to the inside. The spring wire 106 is received in a corresponding recess in the bolt slide section 87 , which permits the bending movement of the spring wire 106 shown in FIG. 4. In this recess, the guide pin 110 opposite end of the spring wire 106 is fixed in the bolt slide over subsection 87 . Before inserting a key 14 in the cylinder core 11 , the pin slide 86 , 87 is pushed out by its compression spring 88 in the extension direction 91 . Should not be aligned with the locking receiver 92 of the steering column 93 shown in FIG. 2, the locking pin, so it is incident on the intermediate rib radially, wherein the said telescopic boom 97 between the locking bolt 90 and the bolt slide sub-section 87 together quantitative scho ben. The telescopic extension 97 is loaded via an extension spring 96 , the effectiveness of which is limited by bilateral end stops between the two components 87 , 90 . Is by turning the steering column 93 of the locking pin already extended in its extended position with one of the steering column-side locking receptacles 92 in alignment, the extension spring 96 presses the locking pin there into its locked position 90 '.

In this initial position, which characterizes the keyless zero position O, the pin slide 86 , 87 is located at its lower stroke end of its axial movement, which is not shown in detail. The guide pin mounted longitudinally displaceably in the bolt slide subsection 87 is just moved if downward and arrives at its lower stroke end 110 ′ illustrated in phantom in FIGS . 4 and 5. It is pressed due to its Federbela stung 111 radially inward and with the aforementioned cam track 100 in the control ring 101 in engagement. The lifting rod 84 of the key withdrawal lock 80 is located with its upper end face 98 below the outer end 83 of the sliding block 81 . When a key 14 is inserted into the cylinder channel 13 , the sliding block outer end 83 therefore moves over the end face 98 of the lifting rod 84 . When the key 14 is turned in the switch-on direction 16 , the cylinder core 11 takes the sliding block 81 with it. As can be seen from the sectional view of FIG. 7, the lifting rod 84 extends over an initial rotation region 109 indicated there, the meaning of which will be explained in more detail below.

When turning in the switch-on sense 16 , the guide pin is raised from its lower stroke end 110 'over the rising cam track 100 . In Fig. 5 is dash-dotted to the at its lower stroke end 110 'located guide pin a flat development of the cam ring 100 provided with the control ring 101 . In the above-described rotation in the switch-on direction 16 , the control ring 101 moves relative to the guide pin still located at its lower stroke end 110 'and allows it to run onto the cam track 100 increasingly up to its upper stroke end 110 , which is illustrated in FIG. 5 by the movement arrow 112 . In this already explained in connection with FIG. 7 th initial rotation 109 , the end face 98 of the lifting rod 84 is overlapped by the sliding block 81 . The guide pin running onto the cam track 100 takes the bolt slide 86 , 87 axially upward, but this initial stroke is not yet transmitted to the lifting rod 84 connected to it. As long as the sliding block 81 axially engages over the end face 98 or the lifting rod 84 , the telescopic extension 85 located between the upper part of the bolt slide 86 and the lifting rod 84 compensates for this lifting movement. Only after unscrewing from this angular range 109 does the sliding block 81 release the lifting rod 84 . The lifting rod 84 can then slide out by means of a telescopic extension 85 integrated spring 113 to the extent of the end stops provided there between these two components 84 , 86 .

The guide pin 110 'acts as a guide member, which transfers the bolt slide 86 , 87 against its compression spring 88 in its drawn in Fig. 4 drawn upper stroke end 110 when lifting. Already in the intermediate position 11 of the cylinder core 11 , the guide pin 110 has passed through the full height of the cam track 100 and transferred the bolt slide 86 , 87 together with the lifting rod 84 into the upper end of the stroke shown in FIGS . 4 and 5. The locking pin is then brought into the upper release position 90 shown in FIGS. 4 and 5 via the fixed end stops in the region of its telescopic extension 97 .

When the guide pin arrives at its upper stroke end 110 , its pin end has run onto an outer support surface 108 formed by the peripheral region of the cylinder core 11 . The support surface 108 is located above the control ring 101 , the curved path 100 of which opens there. At the transition to its upper stroke end 110 of the guide pin 110 is disengaged from the cam track 100 and is located under the action of its spring load 111 under tension to the support surface 108 radially on. The support surface 108 extends over the angular range α, β, γ of all rotational positions III, II, I up to the zero position O. As long as the key 11 is in place, the guide pin remains at its upper stroke end 110 and is still supported on the support surface 108 when the cylinder core 11 is turned back in the deactivation direction 17 even in the zero position O. When approaching the already repeatedly mentioned initial rotation range 109 of FIG. 7, the sliding sliding block 81 moves with its outer end 83 into a horizontal notch 99 provided in the widened lifting rod 84 , as can be seen from FIG. 6, and stops the lifting rod 84 their upper end of the stroke. Via the end stops of its telescopic extension 85 , the bolt slide 86 , 87 is simultaneously held in its upper stroke position according to FIG. 4 when the key is inserted, and also in the zero position O shown there. The key removal lock 80 ensures that even then the locking bolt in its The upper release layer 90 recognizable from FIG. 4 remains. The compression spring 88 loading the bolt slide 86 , 87 remains compressed.

When the key 14 is removed in the sense of the withdrawal arrow 114 illustrated in FIG. 6, the key channel 13 is free and the sliding block 81 can penetrate with its inner end 82 . This occurs due to the sliding-on inner end 82 by suitable inclined surfaces from the profiled groove 99 generated radial components of the axial thrust arrow pointing in the direction 91 of the compression spring 88th If the lifting rod 84 is free of the sliding block 81 , it is pulled down by the compression spring 88 via the effective end stops of its telescopic extension 85 . That point of the supporting surface 108 in the zero position O of the guide pin 110 is supported entkupplungswirksam on account of its spring loading 11 is limited in axial direction towards the control ring 101 down by a steep slope 116, the apparent to a aligned therewith, best seen in FIG. 10 Hollow 115 heard. The cam track 100 also begins in this depression 115 , as can be seen from FIG. 10. During this downward thrust 91 of the bolt slide valve 86 , 87 , the guide pin is also moved downward and falls into the depression 115 via the steep flank 116 . Due to its Federbela stung 106 then the guide pin 110 'is pressed towards the cylinder axis and is coupled to the cam track 100 beginning there again. By this clutch engagement 110 'in the cam track 100 in the zero setting O the lower stroke end of the pin slide 86 , 87 is determined. The locking bolt connected to it via the telescopic extension 97 with its end stops and its spring 96 is released into its locking position 90 '.

It is important that after key removal 114 from FIG. 6, the guide pin is caught in its position 110 'of FIG. 4 in the trough 115 . In extension direction 91 , it is supported on the cam track 100 , which projects radially beyond the trough 115 . At the opposite end, the cam track 100 , as indicated by dash-dotted lines in FIG. 4, runs to the radial height of the mentioned outer support surface 108 . In the zero position of Fig. 4, the sunken guide pin 110 ', upwards, overlapped by the steep surface 116 . If one then bounces on the locking bolt located in its locking position 90 'in order to set the link chain of the key removal lock 80 in accordance with the spring properties of its compression spring 88 in resonance vibrations, which lift the locking bolt out of the locking groove, this is due to the above-described engagement of the guide pin 110 'Basically excluded sen in the trough 115 . The bolt slide 86 , 87 is blocked and does not allow axial vibrations. There is a reliable "impact protection". The steering lock 10 according to the invention is therefore characterized by a high security against break-ins.

Claims (24)

1. steering lock ( 10 , 10 ') for motor vehicles with a lock cylinder consisting of a cylinder housing ( 21 , 22 ) and a cylinder core ( 11 ) accommodated therein with its tumblers ( 12 ),
which is non-rotatably connected to an electrical switch ( 20 ) and can be rotated by means of an inserted key ( 14 ) from a locking zero position (O) into further angularly offset positions (I to III), namely, with reference to the electrical switch ( 20 ), either in a switch-on direction ( 16 ) directed away from the zero position (O), or in a switch-off sense ( 17 ) directed towards the zero position,
characterized,
that a coaxial to the cylinder core ( 11 ) rotatably mounted switching ring ( 30 , 30 ') on the one hand a counter shoulder ( 33 , 78 ) to a on the cylinder core ( 11 ) located when rotating in the switch-on sense ( 16 ) effective driving shoulder ( 43 , 42 ') and secondly a Steuerkan te (33, 33 ') for a at one against the switching ring (30) radially sprung has upon rotation in Ausschaltsinne (17) effective run-on slope (54) (48) latch (41),
the bolt ( 41 , 41 ') one of its run-up slope ( 54 , 54 ') opposite, when rotating in the switch-on sense ( 16 ) effective steep impact ( 53 , 53 '), which a stop ( 43 , 71 ) of a radial jump ( 19 , 70 ) is opposed,
the radial projection ( 19 , 70 ) from its stop ( 43 , 71 ) in a direction of rotation ( 17 and 16 ) limited, radially projecting sliding guide ( 52 , 52 ') for the spring-loaded ( 48 ) bolt end ( 41 , 41 ') , The sliding guide ( 52 , 52 ') extends in the direction of rotation of the cylinder core ( 11 ) and continues on the switching ring ( 30 , 30 ') in a slideway ( 51 , 51 ') which in the opposite direction ( 16 and 17 ) of the ring-side control edge ( 33 , 33 ') is limited,
the switching ring ( 30 , 30 ') has a latching shoulder ( 32 , 79 ) which can be overcome for a resilient latching member ( 42 , 42 '), the latching member ( 42 , 42 ') when rotating in the opening sense ( 17 ) on the latching shoulder ( 32 , 79 ) rests, the control edge ( 33 , 33 ') on the switching ring ( 30 , 30 ') moves away from the stop ( 43 , 71 ) on the radial projection ( 19 , 70 ) and in between creates a gap ( 40 ) into which the spring-loaded bolt ( 41 , 41 ') in an intermediate position (II) of the cylinder core ( 11 ),
in the intermediate rotary position (II) the impact ( 53 , 53 ') of the bolt ( 41 , 41 ') which has fallen into the gap ( 40 ) is supported on the stop ( 43 , 71 ) of the radial projection ( 19 , 70 ), namely a reverse rotation blocked in the switch-on sense ( 16 ), but permits a further rotation in the switch-off sense ( 17 ) because the run-up slope ( 54 , 54 ') opposite the joint ( 53 , 53 ') on the control edge ( 33 , 33 ') on the switching ring ( 30 , 30 ') runs up and lifts the bolt ( 41 , 41 ') against its spring load ( 48 , 74 ) from the gap ( 40 ) until its bolt end ( 49 , 49 ') turns ( 17 ) to the zero position (O) on the slide ( 51 , 51 ') of the switching ring ( 30 , 30 ') controlled by a rotation limiter ( 34 , 44 ; 70 , 73 ),
and, starting from the zero position (O), meaning when rotating in the turn (16) by means of at a surmountable mating latching shoulder (31; 78) of the switching ring (30, 30 ') abutting detent member (42, 42') of the switching ring (30, 30 ') with its control edge ( 33 , 33 ') against the stop ( 43 ; 71 ) of the radial projection ( 19 , 70 ) is movable and in between creates a closed joint (contact joint 40 ') through which the bolt end when turning ( 16 ) ( 49 , 49 ') from the slide ( 51 , 51 ') of the switching ring ( 30 , 30 ') on the slide guide ( 52 , 52 ') of the radial projection ( 19 , 70 ) slides away,
wherein the radial projection has a convex profile ( 19 ), is rotationally fixed to the cylinder core ( 11 ) and, with its stop ( 43 ), points in the direction of rotation ( 16 ), but its slide guide ( 52 ) for the bolt end, which starts from the stop ( 43 ) ( 49 ) is located on the radial outer surface of its convex profile ( 19 ) and extends in the direction of switch-off ( 17 ),
while the control edge ( 33 ) on the switching ring ( 30 ) is oriented in the direction of switch-off ( 17 ), its slideway ( 51 ) is located on the circumferential surface of the switching ring ( 30 ) and from the control edge ( 33 ) in the direction of switch-on ( 16 ) extends
and both the bolt ( 41 ) and the locking member ( 42 ) are positioned in a stationary manner and are spring-loaded in each case and radially towards the cylinder axis ( 50 ) (cf. FIGS . 1 to 18). 2. Steering lock according to claim 1, characterized in that the stop ( 43 ) on the cylinder core ( 11 ) located radial projection ( 19 ) also the function of the driving shoulder for the switching ring ( 30 ) in the direction of rotation ( 16 ) from an intermediate position (II ) in an end position (III) of the cylinder core ( 11 ), while the associated counter shoulder is formed by the control edge ( 33 ) of the switching ring ( 30 ) which interacts with the bolt ( 41 ) (cf. FIGS. 16, 17). 3. Steering lock according to claim 1 or 2, characterized in that the rotation limit between the switching ring ( 30 ) and the cylinder core ( 11 ) is arranged and from a rotary groove ( 44 ) on the one hand with an engagement element ( 34 ) on the other hand freely cut groove boundaries ( 45 , 46 ) exist (see FIG. 14). 4. Steering lock according to one or more of claims 1 to 3, characterized in that when the cylinder core rotates in the opening sense ( 17 ), the locking member ( 42 ) on the locking ring ( 30 ) located locking shoulder ( 31 ) entraining the switching ring ( 30 ) first stops, while the radial projection ( 19 ) located on the switching ring ( 30 ) can continue to rotate and the contact joint ( 40 ') between the stop ( 43 ) and the control edge ( 33 ) on the stopped switching ring ( 30 ) opens until there, in one Intermediate rotary position (II), the gap ( 40 ) for engaging the spring-loaded ( 48 ) bolt ( 41 ) is created,
and when turning further from the intermediate position (II) in the switch-off position ( 17 ) to the zero position (O) of the cylinder core ( 11 ) via its rotation limitation ( 45 ) the switching ring ( 30 ) is forcibly taken along ( 35 ) and on the one hand the spring-loaded ( 47 ) Latching member ( 42 ) on the ring-shaped locking shoulder ( 32 ) and on the other hand the spring-loaded ( 48 ) latch ( 41 ) lifts over the ring-shaped control edge ( 33 ). 5. Steering lock according to one or more of claims 1 to 4, characterized in that the latching heel is formed by a, in the switching direction ( 17 ) facing rear flank ( 32 ) on the switching ring ( 30 ) and the switching ring ( 30 ) also one in Switching-on direction of rotation ( 16 ) has counter-latching shoulder ( 31 ) against which the resilient latching member abuts upon rotation from the zero position (O) and stops further rotation ( 16 ) until the stop located on the radial projection ( 19 ) of the cylinder core ( 11 ) ( 43 ) touches the control edge ( 33 ) on the switching ring ( 30 ) and thus the gap ( 40 ) is closed (see FIGS. 15, 16). 6. Steering lock according to claim 5, characterized in that between the latching and counter-latching paragraph ( 31 , 32 ) of the switching ring ( 30 ), each separated by a front or rear latching elevation ( 38 , 38 '), a latching recess ( 37 ) for the latching element ( 42 ) is arranged, which determines the intermediate position (II) of the switching ring ( 30 ) when rotating from the zero position (O) in the switch-on sense ( 16 ) (cf. FIG. 16). 7. Steering lock according to claim 6, characterized in that the front grid elevation ( 38 ) has a greater radial height than the rear grid elevation ( 38 ') located on the rear flank ( 32 ) (see FIG. 18). 8. Steering lock according to one or more of claims 1 to 7, characterized in that the cylinder core ( 11 ) has a plurality of positions ( 65 , 66 , 67 ) for the same locking member ( 42 ), which has the zero position (O), the intermediate position Determine (II) and / or the other rotational positions (I; III) (see FIG. 13). 9. Steering lock according to one or more of claims 1 to 8, characterized in that the spring-loaded ( 48 ) bolt ( 41 ) consists of a leaf spring held at one end ( 55 ), the free spring end ( 41 ) is cranked and the inclined ramp ( 54 ) of the bolt, the slide-guided bolt end ( 49 ) and the steep joint ( 53 ) of the bolt forms (see FIG. 14). 10. Steering lock according to one or more of claims 1 to 9, characterized in that the spring-loaded locking member is produced by a central offset ( 42 ) of a leaf spring ( 56 ) which is gripped at both ends (cf. FIG. 14). 11. Steering lock according to claim 9 or 10, characterized in that the locking member ( 42 ) forming leaf spring ( 56 ) is integrally formed with the bolt ( 41 ) generating leaf spring ( 55 ) and from the two legs ( 55 , 56 ) one in the cylinder housing ( 21 ) mounted ( 58, 59 ) angle spring ( 57 ) (see Fig. 14). 12. Steering lock according to one or more of claims 1 to 11, characterized in that the switching ring ( 30 ) on the upper end ( 15 ) of the cylinder core ( 11 ) is mounted and in the region of the control edge ( 33 ) one of the cylinder core ( 11 ) radially has outstanding outer cams ( 39 ) (see FIG. 14). 13. steering lock ( 10 , 10 ') for motor vehicles with a lock cylinder consisting of a cylinder housing ( 21 , 22 ) and a cylinder core ( 11 ) accommodated therein with its tumblers ( 12 ),
which is non-rotatably connected to an electrical switch ( 20 ) and can be rotated by means of an inserted key ( 14 ) from a locking zero position (O) into further, angularly offset rotary positions (I to 111 ), namely, in relation to the electrical switch ( 20 ), either in a switch-on direction ( 16 ) directed away from the zero position (O), or in a switch-off sense ( 17 ) directed towards the zero position,
characterized in that a coaxial to the cylinder core ( 11 ) rotatably mounted switching ring ( 30 , 30 ') on the one hand a counter shoulder ( 33 , 78 ) to a on the cylinder core ( 11 ) located when turning in the engagement sense ( 16 ) effective shoulder ( 43 , 42 ') And, on the other hand, has a control edge ( 33 , 33 ') for a run-up slope ( 54 ) which is effective when rotating in the opening direction ( 17 ) on a radially spring-loaded ( 48 ) bolt ( 41 ) against the switching ring ( 30 ),
the bolt ( 41 , 41 ') one of its run-up slope ( 54 , 54 ') opposite, when rotating in the switch-on sense ( 16 ) effective steep impact ( 53 , 53 '), which a stop ( 43 , 71 ) of a radial jump ( 19 , 70 ) is opposed,
the radial projection ( 19 , 70 ) from its stop ( 43 , 71 ) in a direction of rotation ( 17 and 16 ) limited, radially projecting sliding guide ( 52 , 52 ') for the spring-loaded ( 48 ) bolt end ( 41 , 41 ') , The sliding guide ( 52 , 52 ') extends in the direction of rotation of the cylinder core ( 11 ) and continues on the switching ring ( 30 , 30 ') in a slideway ( 51 , 51 ') which in the opposite direction ( 16 and 17 ) of the ring-side control edge ( 33 , 33 ') is limited,
the switching ring ( 30 , 30 ') has a latching shoulder ( 32 , 79 ) which can be overcome for a resilient latching member ( 42 , 42 '), the latching member ( 42 , 42 ') when rotating in the opening sense ( 17 ) on the latching shoulder ( 32 , 79 ) rests, the control edge ( 33 , 33 ') on the switching ring ( 30 , 30 ') moves away from the stop ( 43 , 71 ) on the radial projection ( 19 , 70 ) and in between creates a gap ( 40 ) into which the spring-loaded bolt ( 41 , 41 ') in an intermediate position (II) of the cylinder core ( 11 ),
in the intermediate rotary position (II) the impact ( 53 , 53 ') of the bolt ( 41 , 41 ') which has fallen into the gap ( 40 ) is supported on the stop ( 43 , 71 ) of the radial projection ( 19 , 70 ), namely a reverse rotation blocked in the switch-on sense ( 16 ), but permits a further rotation in the switch-off sense ( 17 ) because the run-up slope ( 54 , 54 ') opposite the joint ( 53 , 53 ') on the control edge ( 33 , 33 ') on the switching ring ( 30 , 30 ') runs up and lifts the bolt ( 41 , 41 ') against its spring load ( 48 , 74 ) from the gap ( 40 ) until its bolt end ( 49 , 49 ') turns ( 17 ) to the zero position (O) on the slide ( 51 , 51 ') of the switching ring ( 30 , 30 ') controlled by a rotation limiter ( 34 , 44 ; 70 , 73 ),
and, starting from the zero position (O), meaning when rotating in the turn (16) by means of at a surmountable mating latching shoulder (31; 78) of the switching ring (30, 30 ') abutting detent member (42, 42') of the switching ring (30, 30 ') with its control edge ( 33 , 33 ') against the stop ( 43 ; 71 ) of the radial projection ( 19 , 70 ) is movable and in between creates a closed joint (contact joint 40 ') through which the bolt end when turning ( 16 ) ( 49 , 49 ') from the slide ( 51 , 51 ') of the switching ring ( 30 , 30 ') on the slide guide ( 52 , 52 ') of the radial projection ( 19 , 70 ) slides away,
wherein the radial projection has a concave profile ( 70 ), is arranged stationary in the cylinder housing ( 21 ) and with its stop ( 71 ) points in the direction of switch-off ( 17 ), but its sliding guide ( 52 ') starting from the stop ( 71 ) for the Bolt end ( 49 ′) is formed by an inward radial inner surface of the concave profile ( 70 ) facing the cylinder axis ( 50 ) and extends in the direction of rotation ( 16 ),
while the control edge ( 33 ') on the switching ring ( 30 ') is oriented in the direction of switch-on ( 16 ), its slideway ( 51 ') is located on the inner ring surface ( 75 ) of the switching ring ( 30 ') and from the control edge ( 33 ' ) extends in the direction of switch-off ( 17 ),
and both the bolt ( 41 ') and the locking member ( 42 ') with the cylinder core ( 11 ) can also be rotated and are each spring-loaded away from the cylinder axis ( 50 ) (see FIGS. 19, 20). 14. Steering lock according to claim 13, characterized in that the locking member ( 42 ') located on the cylinder core ( 11 ) also forms the function of the driving shoulder for the switching ring ( 30 ) in the on-rotation direction ( 16 ), while the associated counter-shoulder of one , In the direction of rotation ( 17 ) facing rear flank ( 78 ) of a radial inner cam on the ring inner surface ( 75 ) of the switching ring ( 30 ') is formed (see. Fig. 20). 15. Steering lock according to claim 14, characterized in that the inner cam ( 77 ') located on the switching ring ( 30 ') on its opposite side to the rear flank ( 78 ) is limited by a front flank ( 79 ) pointing in the direction of rotation ( 16 ), behind which engages the resilient locking member ( 42 ') and which determines an extreme position of the switching ring ( 30 ) which, when the contact joint ( 40 ') is closed, between the projection-side stop ( 71 ) and the annular control edge ( 33 ') which leads to the zero position (O) opposite end position (III) of the cylinder core ( 11 ) in the cylinder housing ( 21 ) is (see. Fig. 23). 16. Steering lock according to one or more of claims 13 to 15, characterized in that the concave radial projection ( 70 ) at its end opposite the stop ( 71 ) is limited by a counter-stop ( 72 ) pointing in the direction of rotation ( 16 ) and at the same time forms the engagement element ( 70 ) for the rotation limitation of the switching ring ( 30 ),
while the rotary groove of the rotation limit of a segment cut ( 73 ) in the switching ring ( 30 ') is generated, one of which, the groove free cut determining cut-out limit is also the control edge ( 33 ') for the bolt ( 41 '), while the opposite , other cutout limitation ( 76 ) interacts with the counter-stop ( 72 ) to limit rotation (cf. FIG. 20). 17. Steering lock according to one or more of claims 13 to 16, characterized in that the bolt ( 41 ') with respect to the locking member ( 42 ') on the diametrically opposite side of the cylinder core ( 11 ) is located (see. Fig. 20). 18. Steering lock according to one or more of claims 13 to 17, characterized in that the bolt ( 41 ') and the locking member ( 42 ') are each mounted in a rotationally fixed to the cylinder core ( 11 ) connected radial guides ( 69 ) longitudinally displaceable (see. Fig. 20). 19. Steering lock according to claim 18, characterized in that the two radial guides are aligned with one another and form a passage ( 69 ) in which a spring member ( 74 ) between the mutually facing inner ends of the bolt ( 41 ') and the locking member ( 42 ') is arranged and pushes it diametrically apart (see Fig. 20). 20. Steering lock according to one or more of claims 13 to 19, characterized in that upon rotation in the switch-on sense ( 16 ) starting from the zero position (O), the locking member ( 42 ') to the rear flank ( 78 ) from the inner cam ( 77 ) of the switching element ( 30 ') bumps and takes the switching element along when turning, while the locking end ( 49 ') on the inner ring surface ( 52 ') of the switching ring ( 30 ') slides along until the intermediate position (II) is reached, where the limit the segment cutout ( 73 ) at one end de control edge ( 33 ′) touches the stop ( 71 ) on the concave radial projection ( 70 ) and stops the further rotation ( 16 ) of the switching ring,
and (42 '), runs over the inner cam (77) while the locking end (40', the resilient detent member upon further rotation in Einschaltsinne (16)) (40 ') of time (52 on the radial inner surface') of the Konkavprofils (70) continues to slide over the Berührungsfuge until the end position (III) of the cylinder core ( 11 ) is reached, where the resilient locking member ( 42 ') engages behind the front flank ( 79 ) of the inner cam ( 77 ) (see. Fig. 22, 23). 21. Steering lock according to one or more of claims 13 to 20, characterized in that the inner cam ( 77 ) between its front and rear flanks ( 79 , 78 ) has a cam width which is the same as the angular distance between the end position (III) and the intermediate position (II). 22. Steering lock according to one or more of claims 13 to 21, characterized in that the ring inner surface ( 75 ) of the switching ring ( 30 ') has locking recesses for the spring-loaded locking member ( 42 '), which one or more rotational positions of the cylinder core ( 11 ) determines how the intermediate position (II), an assembly position (IV) for the locking cylinder, and possibly the end position (III). 23. Steering lock according to one or more of claims 13 to 22, characterized in that when rotating in the opening sense ( 17 ), which starts from the end position (III), where the locking member ( 24 '), the front flank ( 79 ) on the inner cam ( 77 ) of the switching ring ( 30 ') engages behind, the locking member ( 42 ') also takes the switching ring ( 30 ') with it, while the locking end ( 49 ') slides along the radial inner surface ( 52 ') of the concave profile ( 70 ) and the control edge ( 33 ') of the switching ring ( 30 ') from the stop ( 71 ) of the Radialvor jump ( 70 ) increasingly removed until the cutout direction ( 17 ) pointing other cutout limit ( 76 ) in the switching element ( 30 ') on the counter-stop ( 72 ) of the radial projection ( 70 ) strikes, the entrainment of the switching ring ( 30 ') in the opening sense ( 17 ) ends and the gap ( 40 ) between the ring-shaped control edge ( 33 ') and the projection-side stop ( 71 ) for engaging the spring-loaded bar ls ( 41 ′) arises (intermediate position II),
and when turning further from the intermediate position (II) in the Ausschaltin ne ( 17 ), the spring-loaded locking member ( 42 ') passes over the inner cam ( 77 ) and snaps in front of its rear flank ( 78 ), while the bolt ( 41 ') with its ramp ( 54 ') ) drives up to the control edge on the ring ( 33 '), thereby being lifted out of the gap ( 40 ) and with its locking end ( 49 ') on the inner ring surface ( 51 ') of the switching ring ( 30 ') passed on until the zero position (O) is reached (see Figs. 24, 20). 24. Steering lock according to one or more of claims 1 to 23, characterized in that the switching ring ( 30 ') is mounted on the lower end ( 29 ) of the cylinder core ( 11 ) and in its ring interior of the locking member ( 42 ') and the bolt ( 41 ') are arranged (see. Fig. 19).