FR2657641A1 - LOCK COMPRISING A STATOR AND A FREE MOUNTED ROTOR FORMING IN THE STATOR. - Google Patents

Abstract

The lock comprises a stator (2), a rotor (3) mounted to rotate freely in the stator (2), a member such as a threshing machine (4) provided towards one end of the rotor and a bolt (6) suitable for passing from a deleted position to an active position to ensure the rotary drive of the threshing machine by the rotor. The rotor (3) comprises a housing (8) opening at the end opposite the threshing machine and suitable for receiving a key (7), selection members (9) being provided to pass radially through the wall of the rotor (3 ) and open into the housing so as to cooperate with the key. The bolt (6) is located outside the housing (8) provided in the rotor for the key; means for moving the bolt are provided outside the rotor (3) and are suitable for moving the bolt, when a compliant key has been introduced, to the active position. Means (19) are also provided for returning the bolt to its retracted position when the key is withdrawn.

Description

i

  LOCK COMPRISING A STATOR AND A MOUNTED ROTOR

FREE TO ROTATE IN THE STATOR.

  The invention relates to a lock of the type which includes a stator, a rotor mounted to rotate freely in the stator, a member such as a thresher provided towards one end of the rotor and a bolt suitable for passing from a position. deleted at one

  active position for rotational training

  tion of the thresher by the rotor, this rotor comprising

  a housing opening at the end opposite to the bat-

  teuse and suitable for receiving a key, selection members being arranged radially to the wall of the rotor and opening into the housing so as to

  cooperate with the key so that when a key con-

  shape has been suitably introduced into the rotor housing, the selection members are placed in a position allowing the bolt to move towards its

  active position and drive of the thresher.

  In general, the thresher is used to control a

lock mechanism.

  Such a lock has the advantage of being disengageable, that is to say that during an attempt

  of burglary for example using a key not con-

  shape or a screwdriver blade inserted into the rotor housing, so as to exert a torque on this rotor, the latter will rotate freely in the stator, without driving the thresher, and without

  cause the deterioration of the selection organs.

  The control of the lock will therefore not be ensured and

the lock will not be destroyed.

  Locks of this type are known, including

  ment by FR-A-2 579 655 According to this document, a part, forming a bolt, is mounted in the rotor, and the selection members are arranged in this part and inside the rotor; the sliding of the part to establish the connection in rotation between the rotor and the threshing machine is obtained by the action of the pressure of the tip of the key, introduced into the housing of the rotor, and coming to bear against a stop of the part . The realization of the rotor for such a lock is relatively delicate and the operations of assembling the different elements arranged in the rotor, cooperating with the bolt-forming part, are relatively complicated. Furthermore, the bolt-forming part is accessible from the housing provided for the key in the rotor which facilitates a break-in by pushing on this part in a direction

parallel to the axis of the rotor.

  The invention aims, above all, to provide a lock of the kind defined above, which no longer has, or to a lesser degree, the

  disadvantages mentioned above We wish, in par-

  particular, that the realization of the rotor is simplified and that the bolt is the least accessible possible

from outside the lock.

  According to the invention, a lock of the kind defined above is characterized in that: the bolt is located outside the housing provided in the rotor for the key; means for moving the bolt are provided outside the rotor and are capable of moving the bolt towards the active position, when a conforming key has been introduced; and that means for removing the bolt are further provided to return the bolt to its position

  erased when removing the key.

  According to a first embodiment, the bolt is mounted so as to be able to rotate with the rotor while being able to move in translation, in a direction parallel to that of the axis of the rotor, relative to the latter; the selection members completely pass through the wall of the rotor and protrude outside the rotor; the selection members are capable of retaining in translation the bolt relative to the rotor as long as a conforming key has not been introduced into the rotor; the means for moving the bolt comprise elastic means suitable for moving the bolt when the means for

  selection have been properly deleted.

  The bolt can have the shape of a sensitive block

  completely parallelepipedal, the length of which is oriented parallel to the direction of the axis of the rotor, the bolt comprising, on either side of its length, pins projecting transversely, while the selection members consist of pistons, passing through the rotor wall, provided with

  the outside of the rotor with larger diameter heads

  as long as they are capable of cooperating with the lugs to retain the latch, the latter being released, relatively to the rotor, when the pistons have been moved so that the heads are outside of the engagement with the lugs. The pistons can be returned to their bolt locking position by elastic thrust means provided on the rotor and acting

  radially inward.

  The bolt removal means may comprise a radial finger passing through the bolt and the rotor and each end of which is adapted to cooperate with a ramp, suitably inclined, provided respectively on the key and on the rotor so that a radial displacement finger, commanded by

  key, provokes, by cooperation with the ramp of the

  tor, a longitudinal movement of the finger and the bolt

  against elastic means This finger can com-

  wear a head provided with a groove in which is adapted to engage a circular flange provided at the end of the stator and having a notch at an indexed position of the rotor, so that, during a rotation of the rotor, the bolt retaining finger

  is kept in position away from the rotor axis.

  According to a second embodiment, the bolt can rotate relative to the rotor, and is slidably mounted in the stator, while the selection members are arranged to prevent, when they are not erased by a conforming key, a translation

  of the bolt relative to the rotor, while allowing

  ble a rotation of the rotor relative to the bolt, means for driving in translation of the bolt, in response to a rotation of the rotor, being provided, these drive means being erasable in the case where too strong resistance of the bolt to axial displacement occurs, the rotation of the rotor can then

  be carried out without effect on the bolt.

  The bolt can have the shape of a U whose branches are arranged parallel to the axis of the rotor and come to frame this rotor longitudinally in

  two diametrically opposite zones.

  The erasable drive means of the bolt may comprise, on the side of one of the two elements constituted by the bolt and the rotor, a pin elastically urged in the radial direction and linked to this element, this pin being able to cooperate with a ramp provided on the other element, rotor or bolt, the ramp being inclined relative to the peripheral direction Preferably, the pin is provided on the

bolt and ramp on the rotor.

  The bolt can be independent of the bat-

  teuse, which does not then move in translation relative to the stator; the bolt is immobilized in rotation relative to the stator; a coach is provided at the end of the bolt to establish a rotational connection between the thresher and the rotor when the bolt has been moved in translation, this coach being

  clean, in the disengaged position, to establish a condemnation

  rotation of the thresher relative to the sta-

  tor, in particular thanks to a radial tab cooperating with two respective longitudinal notches provided-

  on the thresher and on the stator.

  Alternatively, the bolt can be secured to the thresher which can move in translation, with

  the bolt, relative to the stator, the threshing machine

  both coupling means in rotation with the

  proper rotor to come into action when this bat-

  teuse was moved in translation following the introduction of a conforming key and a rotation of the rotor. According to a third embodiment, the bolt is tilting and is constituted by a part extending along the length of the rotor, this part being articulated on a longitudinal axis parallel to the axis of the rotor and carried externally by the rotor, the bolt comprising a drive means capable of cooperating with a means complementary to the thresher when a conforming key has been inserted into the rotor

and the bolt has tilted.

  The drive means carried by the bolt can be constituted by a lug located at the end of the bolt, oriented parallel to the axis of the rotor, and suitable for engaging in a circular groove of the thresher, said groove having at the edge a internal radial notch in which said lug can enter when the bolt swivels inwards in response to an appropriate arrangement of the selection members. The selection members can be constituted, in this embodiment, by flakes whose mean plane is orthogonal to the axis of the rotor, these flakes being mounted with a possibility of radial sliding in the rotor, each flake

  comprising at least one notch on a longitudinal edge

  nal, these notches being able to align when a

  compliant key has been inserted into the rotor, the latter

  deny having a clean closure to allow entry of a spout provided on the tilting bolt, the assembly being such that when the notches have been aligned by the introduction of a conforming key, the beak of the bolt can enter these notches which allow the radial tilting of the bolt and the entry of the finger

  drive in the above notch of the thresher.

  According to a fourth embodiment, the bolt is arranged at the end of the rotor, outside this rotor, and comprises a cylindrical skirt covering a rotor body, this skirt being suitable for passing through a radial opening of said rotor, in order to be able to cooperate with the selection members constituted by radially movable pistons provided with grooves, the assembly being such that when a conforming key is introduced into the rotor, the selection members assume positions such that the edge of the skirt cooperates with the grooves of the corresponding selection members, which allows a displacement in translation of the bolt relative to the rotor and a clutch of the rotor with the bolt, and of the bolt with the

  thresher, for the transmission of the rotational movement

tion of the rotor to the thresher.

  Preferably the bolt, according to this variant, comprises ramps capable of controlling, during the movement of translation of the bolt, a radial movement of a corresponding pin capable of releasing in rotation

the thresher relative to the stator.

  According to a fifth embodiment, the rotor comprises a set of locking elements with variable geometry, formed by truncated cones with non-parallel bases, these elements being stressed at

  spacing in the radial direction by elastic means

  ticks provided between two successive locking elements

  these elements forming, by their juxtaposi-

  tion, a frustoconical assembly when a conforming key has been introduced, while the bolt comprises a frustoconical cavity suitable for covering the locking elements and coming to marry the stacking of these elements when a conforming key has been introduced, the bolt being pushed back in translation when the locking elements move away from each other and being moved in the direction of these elements, under the action of elastic means, when a conforming key has been introduced into the housing which passes through the elements rotor; the translational movement of the bolt ensures the clutch in rotation between the bolt and

the thresher.

  A locking member between the thresher and the stator is deleted when a conforming key is inserted into the rotor and the bolt is moved in

translation.

  Whatever the embodiment, a lock according to the invention is suitable for locks intended for the automotive industry as well as

  locks for the building.

  The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below in connection with exemplary embodiments described with reference to the attached drawings, but

which are in no way limiting.

  Figure 1 of these drawings is an axial sectional view of a lock according to a first embodiment of the invention, a conforming key being introduced into the rotor and the bolt being in

active position.

  Figure 2 shows, similarly to Figure 1, the lock when the key has been removed and

  the bolt is in the cleared position.

  Figure 3 is a top view, relative-

  ment in Figure 1, the bolt and the rotor, the stator being shown in section. Figure 4 is a section along the line

IV-IV figure 1.

  Figure 5 is a section along the line

V-V figure 1.

  Figure 6 is a perspective view of the bolt. Figure 7 is an axial section of a second embodiment of the lock according to the invention, the rotor being shown outside, the key being

not introduced.

  Figure 8 is a view similar to Figure 7, but with a conforming key inserted in

the rotor.

  Figure 9 is a view similar to the

  figure 7, with a non-compliant tool or wrench intro-

pick in the rotor.

  Figure 10 is an orthogonal section through

the rotor axis.

  Figure 11 is a top view, related

  in FIG. 7, of a detail of the lock, at the level of the erasable drive means between bolt

and rotor.

  Figure 12 is a simplified section ortho-

  gonal to the axis of the rotor, at the level of the erasable drive means along line XII-XII of

Figure 11.

  Figure 13 shows, in axial section, an alternative embodiment of the lock of Figure 7, the

  key not being inserted into the rotor.

  Figure 14 shows, similarly to Figure 13, the lock while a conforming key has been

introduced into the rotor.

  Figure 15 is a section along the

line XV-XV figure 13.

  Figure 16 is a section along the line XVI-XVI Figure 17, of a third embodiment

  of a lock according to the invention, with tilting bolt.

  Figure 17 is an axial section of the lock

  in Figure 16, the rotor not being cut.

  Figure 18 is a section along XVIII-

  XVIII, figure 19, similar to figure 16, but when a conforming key has been introduced and the bolt has

switched to its active position.

  Figure 19 is an axial section along Figure 18, Figure 20 is a cross section

  according to XX-XX, figure 17 showing the condemnation pawn

  tion in rotation of the thresher relative to the rotor.

  Figure 21 is an elevational view of the

thresher alone.

  Figure 22 is a perspective view of the

  tilting bolt with its drive pin at the end.

  Figure 23 is a section through an axial plane

  vertical of a fourth embodiment of a ver-

rou according to the invention.

  Figure 24 shows, similarly to Figure 23, the lock when a conforming key has been inserted in the rotor, and the bolt has moved

towards its active position.

  Figure 25 is a right side view,

port in Figure 23, of the rotor.

  FIG. 26 is an axial vertical section of a fifth embodiment of the lock according to the invention, a conforming key being introduced into the

  rotor, the bolt having moved to the active position.

  Figure 27, finally, represents, similar-

  ment in Figure 26, the lock, when the key has been removed from the rotor and the bolt is in its

position cleared.

  Referring to Figures 1 to 3 of the

  sins, we can see a lock 1 comprising a stator 2 and a rotor 3 mounted to rotate freely in the stator,

but immobilized in translation.

  A member formed by a thresher 4 is provided towards one end of the rotor 3 The thresher 4 is mounted to rotate freely on an extension 5 of the rotor A rotation link can be established between the thresher 4 and the rotor 3 by a bolt 6 suitable for pass from a cleared position, shown in Figure 2, to an active position, shown in Figure 1 when a conforming key 7 has been inserted into a housing 8 of the rotor 3, this housing opening to

  the end of the rotor opposite the thresher.

  Selection members 9 consisting of pistons 10 are arranged radially to the cylindrical wall of the rotor 3 and open into the housing 8 (see FIG. 2), in the absence of a key When a conforming key 7 is introduced, the members of selection 9 are placed in a position allowing the bolt 6 to move towards its active position and

  thresher drive by the rotor.

  Each piston 10 is provided at its outer radial end, located outside the rotor 3,

  of a head 11 of larger diameter.

  The bolt 6 (see FIG. 6) has the shape of a relatively narrow parallelepipedal block over most of its length oriented parallel to the direction of the axis of the rotor 3 pins 12 project transversely from either side of the longitudinal sides of the bolt 6 The heads 11 of the pins 10

  are suitable for engaging between pins 12 successes

  sifs (see figure 2) when no key is entered

  pick in the housing 8 so as to oppose all movement in translation of the bolt 6 relative to the rotor. As shown in Figure 4, the rotor 3 is mounted in a cylindrical housing of the stator 2 The cross section of the rotor 3 has the form of a sec-

  circular surface area greater than a half

  circle, the rotor 3 thus having a flat surface 13 parallel to its axis The bolt 6 is arranged in

  the free space existing between this face 13 and the

  cylindrical inner face of the stator housing 2.

  The bolt 6 is linked in rotation to the rotor 3 since it is between the face 13 and the zone furthest from the cylindrical surface of the housing of the stator 2, while being able to slide relative to the

rotor.

  The end of the rotor 3 remote from the bat-

  teuse 4 has a transverse wall 14 completing the circular section of this end and closing the free space situated above the face 13 This wall 14 serves to support elastic means 15, in particular formed by two compression springs,

  in parallel, the other end of which is in constant support

  be the bolt 6 These elastic means 15 constitute displacement means P suitable for sliding the bolt 6 for engagement with the thresher 4 when

  the pistons 10 have been suitably cleared.

  The end 16 (see FIG. 6) of the bolt close to the threshing machine is widened while the opposite end 17 of the bolt 6 is formed by a cylindrical sleeve of axis orthogonal to the face 13; this sleeve is closed, against this face 13, by a wall 18 comprising a hole for the passage of a finger 19 which passes through an oblong opening 20 provided in the

rotor wall 3.

  Two wings 21, symmetrical with respect to the mean longitudinal plane of the bolt 6 (see FIG. 1) extend on either side of the cylindrical wall of the sleeve of the end 17 These wings 21, on their face facing the wall 14, are provided with rods 22

  suitable as a guide for the spring 15.

  The pistons 10 are returned to their bolt locking position by elastic thrust means (see FIG. 5) provided in the stator and acting radially inwards. The pistons 10 can be placed symmetrically two by two with respect to the plane vertical longitudinal average of the bolt 6 according to the representation of FIG. 5 The thrust means comprise, for each pair of pistons 10, a plate 23, the plane of which is orthogonal to the axis

  stator This plate forms a kind of balance

  cier, having two rounded protrusions pressing on the heads 11, these protrusions being separated by a concave zone which spans the bolt 6 The plate 23 is slidably mounted radially in an associated housing 24 of the stator A spring 25, placed between the

  bottom of the housing 24 and the convex edge of the plate

  stem 23 away from the pistons 10, push this plate

bowling 23 against the heads 11.

  As visible in the drawings, in particular in FIGS. 4 and 5, the housing 8 of the rotor 3 has a cross section substantially in the form of an H symmetrical with respect to the plane orthogonal to the face 13

  and passing through the axis of the rotor 3 The key 7 has a sec-

  corresponding transverse tion and the two parts

  side of the key corresponding to the vertical branches

  H wedges act against the inner ends of the pistons 10 It should be noted that the lengths of the pistons 10 are not all the same and correspond to particular combinations A compliant key is arranged, according to the lengths of each of the pistons 10 and from their position, so that, after complete insertion of the key, the pistons 10

  are pushed back and the heads 11 are aligned with

  above the pins 12, which releases the bolt 6 because the pins 12 can pass below the heads it inside the pistons 10 The thresher 4 has a notch 26 (FIG. 3) forming a housing suitable for receiving the end 16 of the bolt, which establishes the

  connection in rotation between the rotor 3 and the threshing machine 4.

  A pin 27 mounted sliding radially in the stator 2 is elastically pushed by a spring 28 so as to protrude into this housing 26 when the bolt 6 is removed (see FIG. 2) The pin 27 thus blocks the thresher in rotation relative to the stator 2 in a determined position The return of the thresher relative to stator 2 is ensured by a

  torsion spring 29 in helix arranged around the sta-

  tor 2 and anchored at one end to this stator and to its

  other end on the thresher 4.

  The upper face 30 of the end 16 is inclined so as to push the pin 27 towards

  the outside when the bolt 6 moves towards the bat-

teuse 4.

  The finger 19 constitutes a means of withdrawing the bolt 6 to return this bolt to the erased position, shown in FIG. 2, when the conforming key 7

is removed from the housing 8.

  The outer radial end of the finger 19 has a head 31 in a spherical cap and a groove

  32 between this head and a cylindrical collar

  drique 33 A spring 34 is provided between the bottom wall 18 of the end 17 and the flange 33 so as to push the finger 19 radially outward The stator has a cylindrical cavity of larger diameter, at its end opposite to the thresher 4 The bottom of the cavity 35 remote from the entry of the key comprises, over a limited angular extent, an inclined ramp 36 which approaches the axis of the stator, and ensures a gradual transition between the cylindrical wall of the cavity 35 and that

receiving the rotor 3.

  On either side of the ramp 36, the width of which is at least equal to that of the head 31, extends a circular flange 37 projecting parallel to the axis of the stator in the cylindrical housing 35, this flange 37 being concentric

stator 2.

  When the bolt 6 is in the withdrawn position

  (Figure 2), the groove 32 comes to the right of the neck

  lerette 37 which can engage in this groove.

  The conforming key 7 comprises a notch 38 (FIG. 1) on its face turned towards the finger 19, that is to say on its upper face according to the representation in FIG. 1 This notch 38 is positioned so as to allow the finger 19 to fade inwards, as shown in FIG. 1, by cooperating with the ramp 36, under the action of the thrust of the elastic means 15 The front end of this notch comprises a ramp 39 inclined relative to the axis of the rotor 3 and suitable for cooperating, during the withdrawal of the key, with the rounded internal end of the finger 19 to push it radially outwards against the ramp 36 and thus cause the retraction of the bolt 6 and the compression

elastic means 15.

  The end of the rotor 3, away from the bat-

  teuse 4, is covered by a cap 40.

  That said, the operation of the latch

Figures 1 to 5 is as follows.

  In the closed position, shown on the

  Figure 2, the bolt 6 is set back, the means elas-

  ticks 15 being compressed while the heads 11 are located between the pins 12 The rotor 3 can rotate freely relative to the stator 2 and does not cause

thresher 4.

  If a false key or any other tool is introduced into the accommodation, with a view to break-in,

  a torque exerted on such a tool will cause simple-

  the rotation of the rotor 3, without activating the bat-

  teuse 4 nor the lock mechanism not shown

mandated by this thresher.

  As soon as the rotor 3 has rotated about its axis, relative to the angular position which allows the entry of the end 16 of the bolt into the housing 27, the flange 37 engages in the groove 32 and prevents erasure, radially inward, from finger 19, which keeps the pin 6 in the withdrawn position, even though the heads have escaped, due to the rotation, from the thrust plate 23 and the pistons 10 are in some way floating

in the radial direction.

  When a compliant key 7 is inserted into the housing 8, the pistons 10 are moved and

  their heads are aligned above the pins 12.

  The displacement in translation of the bolt 6, under the action of the thrust of the elastic means 15,

  will be possible when the rotor 3 occupies, relative-

  ment to the stator 2, an angular position such that the head 31 of the finger 19 is located at the right of the ramp 36, and that the end 16 of the bolt is located opposite the housing 26 The displacement in translation of the bolt causes the rise of the locking pin 27 by the inclined face 30, and the descent of the finger 19 for removing the bolt, whose head 31 comes to cooperate with the ramp 36 The position is then that shown

in figure 1.

  A rotation of the key causes the rotation

rotor 3 and thresher 4.

  The return to zero of the thresher 4 is ensured by the spring 29 This return to zero brings back the head 31

  from finger 19 to the right of ramp 36.

  It should be noted that in the active position

  bolt 6 (Figure 1) the pins 12 are at least par-

  partially engaged under the heads 11 and pocket the

  lowering of the pistons 10, radially inwards.

  If the key 7, after resetting the beater 4 to zero, is withdrawn from the rotor 3, the cooperation of the ramp 39 and of the finger 19 causes the rise of this finger 19 whose head 31 comes to cooperate with the ramp 36 in opposite direction This cooperation causes a retraction of the bolt 6 against the elastic means 15, up to

  the position erased in Figure 2 The condemnation pin 27 of the thresher goes back down into the housing

26, as shown in Figure 2.

  It should be noted that the movement caused by the conforming key 7 (translation of the bolt 6 and removal of the key) can only be carried out for the single position

  reset, due to rib or col-

lerette 37 and ramp 36.

  Referring to Figures 7 to 12, we can see another embodiment of a lock according to the invention. Elements identical or playing roles analogous to elements already described with reference to FIGS. 1 to 6 are designated by numerical references equal to the sum of the number 100 and the

  reference used in FIGS. 1 to 6 The description

  tion of such items will not be resumed or will be

performed only succinctly.

  The bolt 106 can rotate relative to the rotor 103, and is slidably mounted in the stator 102

  in a direction parallel to the axis of the stator.

  The bolt 106 has the shape of a U whose branches 41, 42 are arranged parallel to the axis of the stator, these branches having a substantially rectangular cross section and being engaged in diametrically opposite grooves 43 provided in the bore of the stator 102 The bolt 106 is thus locked in rotation relative to the stator 102 The branches 41 and 42 are integral with a bottom 44 constituted by a disc whose outside diameter is equal, apart from the sliding clearance, to the inside diameter of the bore of the stator 102 The internal faces of the branches 41, 42

  consist of portions of cylindrical surfaces

  concave bricks, belonging to a cylinder whose diameter is equal to that of the rotor 103, engaged in

* the space between the branches 41, 42.

  The selection members 109 consist of flakes whose mean plane is orthogonal to the axis of the rotor, these flakes being able to move radially through slots provided in the cylindrical wall of the rotor 103, so as to engage in arcuate grooves such as 45 provided in the inner faces of the branches 41, 42 of the

  bolt Elastic means e (see figure 16) stressed

  cite the glitter 109 to make it sail-

  binds on the outer surface of the rotor 103 Each flake has a rectangular opening f intended to be crossed by a key, flat in the example considered When a conforming key 107 has been introduced (see FIG. 8), the flakes 109 are all erased and no longer protrude from the cylindrical outer surface of the rotor 103 The bolt 106 is then free in translation relative to the rotor 103

and stator 102.

  It should be noted that the grooves 45 open out on each longitudinal section of the branches 41, 42 so that the rotor 103 is free to rotate relative to the bolt 106 and therefore relatively

stator 102.

  The means of displacement in translation P of the bolt 106, in response to a rotation of the rotor 103, can be erased in the case where too strong

  resistance of the bolt 106 to axial movement is mani-

  feste. These displacement means P comprise a pin 46 mounted sliding radially towards the end of the branch 41 of the bolt, and resiliently urged so as to project radially inwards from the space between the branches of the bolt The rotor comprises, on its cylindrical surface, an inclined ramp 47 continuing with a peripheral groove 48 whose mean plane is orthogonal to the axis of the rotor The ramp 47 has substantially the shape of a V whose concavity is turned towards the threshing machine,

  as visible in FIG. 11, this ramp 47 admits

  both an axial plane of symmetry which corresponds to the rest position, or zero position, of the rotor 103 and the threshing machine 104 The pin 46 is engaged in the ramp 47 and is located at the tip of the V in the zero position It should be noted that the housing provided in branch 41 for the head of the pin 46 is deep enough to allow the pin to retreat outward so as to completely clear the space

  inside the branches, and allow the pawn to come out

  shot from ramp 47 or its extension 48.

  The bolt 106 is independent of the thresher 104 which does not move in translation relative to the stator 102 The thresher 104 is mounted free in rotation on the extension 105 which is formed by a part of larger diameter wedged on a cylindrical part of more diameter weak through an opening 49 provided in the disc 44 A trainer in the form of a cylindrical sleeve is provided at the end of the bolt 106 with a zone 52, provided with conjugate flats, provided on the extension 105 The connection in rotation between the extension 105 and the driver 50 is obtained

  when the opening 51 covers the area 52.

  The end of the coach 50 facing the threshing machine 104 has teeth 53 suitable for entering, when the coach 50 is pushed towards the threshing machine, in conjugate notches 54 provided on the threshing machine 104 A compression spring 55 is mounted around extension 105, between threshing machine 104 and coach 50 so as to separate the latter

of the thresher.

  The trainer 50 has a radial tab 56 projecting outwards, at its end facing the threshing machine 104 This tab is engaged

  in a longitudinal notch 57 provided on the bat-

  teuse The outer radial end of the lug 56, when the driver 50 is moved away from the threshing machine 104 (FIG. 7), is engaged in a notch 58 provided at the end of the stator 102 The lug 56 comes out of this notch 58 when the coach 50 is pushed towards the threshing machine 104, as shown in the

figure 8.

  That said, the operation of the latch

Figures 7 to 12 is as follows.

  In the rest position, or zero position, the battery

  teuse 104 is locked in rotation, relative to the stator 102, by the lug 56 engaged simultaneously in the notch 57 of the thresher and in the notch 58 of the stator The bolt 106 is removed from the thresher 104 by

spring 55.

  If a conforming key is introduced into the rotor 103 and the openings f of the flakes 109, the latter are erased and release the flap 106 in

  translation relative to the rotor 103.

  A rotation of the key causes a rotation of the rotor 103 relative to the bolt 106 The cooperation of the pin 46 and the ramp 47 causes a displacement in translation of the bolt 106 towards the threshing machine 104 The bolt 106 pushes the driver 50 towards the threshing machine 104 of so that a rotational connection is established between the rotor 103 and the threshing machine 104 thanks, on the one hand, to the cooperation of the opening 51 and of the part 52 and, on the other hand, of the teeth 53 and of the notches 54 In

  in addition, the thresher 104 is released in relative rotation

  tively to the stator because the tab 56 is released from the notch 58 The end of the advance of the coach 50

  corresponds to the arrival of pawn 46 at the pro level

  length 48 of the ramp Continuing to rotate the rotor 103, using the key, the threshing machine 104 is rotated and the

  lock mechanism, the bolt 106 no longer being stressed

cited in translation.

  The return to zero is ensured by the spring 129. If a non-conforming key, or a tool blade, is inserted into the housing of the rotor, with a view to break-in, at least one of the flakes 109 will not be erased and will oppose a move

  in translation of the bolt 106 relative to the rotor 103.

  When a torque is exerted on the rotor 103, with a view to making it rotate, the cooperation of the pin 46 and the ramp 47 applies the bolt 106 against the flake (s) which have not been erased and which

  oppose the axial advance of the bolt.

  Beyond a certain torque exerted on the rotor 3, the pin 46 will be erased by cooperating with the flared edges (see FIG. 12) of the ramp 47, without the bolt advancing towards the thresher 104 The rotor 103 will then rotate freely, without causing

  the thresher, the pin 46 pressing on the cylinder surface

  outer shell of the rotor 103, as shown in

Figure 9.

  Referring to Figures 13 to 15, we can see an alternative embodiment of the lock of the figures

7 to 12.

  The elements of this lock identical or playing roles analogous to elements of the lock of FIGS. 7 to 12 are designated by references

  Numeric with the digit 2 as the cent digit

  taines, while the tens and units figures are identical to those used in the figures

  7 to 12 The description of these elements will not be

  resumption or will be carried out only succinctly.

  According to the variant of FIGS. 13 to 15, the bolt 206 is integral with the threshing machine 204 which is therefore movable in translation, with the bolt, relative to the

  stator 202 The bolt 206 is free in relative rotation

stator 202.

  We find glitter 209 specific to

  cooperate with grooves 245 provided in the bolt.

  Pawn 246 and ramp 247 are located towards

  the end of the rotor 203 close to the threshing machine 204.

  The means for making the coupling in rotation between the rotor 203 and the thresher 204 comprise, on the side of the thresher, at least one tooth 257 projecting in the longitudinal direction in the direction of the bolt 206, while a notch 252 corresponding to each tooth 257 is provided at the front end of the rotor 203 to receive the

corresponding tooth.

  It should be noted that the ramp 247 is arranged

  in the opposite direction to the ramp 47 of FIG. 7, that is

  that is to say that the ramp 247 has its concavity turned towards

  entering the key As a result, when rotating

  tion of the rotor 203, the bolt 206, if the flakes 209 are erased, moves from left to right

  of FIG. 13, relative to stator 202, that is to say

  say in reverse with respect to the solution of

Figures 7 and 8.

  Indexing of the thresher 204 relative to the stator 202, in the rest position, or zero position, is ensured by a tooth 258 projecting radially outwards at the end of the stator 202 adjacent to the thresher, and by a notch 254 provided on the thresher to receive the tooth 258, when the thresher 204 is moved away from the rotor 203 The tooth 258 and the notch 254 are arranged so as to no longer be engaged when the bolt 206 and the thresher 204 are moved to the rotor 203, as shown in FIG. 14, after rotation of this rotor and

  cooperation of pawn 246 and ramp 247.

  The operation of the lock of Figures 13 to is similar to that described in connection with Figures 7

at 12.

  When a 207 compliant key is entered

  in the rotor housing (see figure 14), the blades

  letters 209 are all erased so that no obs-

  tackle does not oppose the translational movement of the bolt 206 and the threshing machine 204 in a direction parallel to the axis of the rotor, when the latter is turned by the key and that the pin 246 cooperates with the

ramp 247.

  This translational movement ensures the

  release of the threshing machine 204 in rotation, relative-

  ment to the stator 202 by releasing the notch 254 relative to the tooth 258 In addition, the thresher comes into engagement with the rotor 203 by the tooth 257 which engages in the notch 252 so that the rotation of the rotor is transmitted to the thresher 204 which controls

the lock mechanism.

  If a false key or a tool blade is

  introduced into the rotor 203 in order to force the

  rure, at least one glitter 209 is not erased and

  opposes the translational movement of the relative bolt-

  ment to the rotor, which causes the pin 246 to exit from the ramp 247, the edges of which are flared as in the case of FIG. 12 The rotor 203 then turns freely in the stator without causing displacement

of the bolt.

  It should be noted that in the case of FIGS. 13 to 15, the branches of the U formed by the bolt 206 are not engaged in grooves of the stator as in the case of FIGS. 7 to 9, to leave the bolt

free to rotate.

  In the case of FIGS. 7 to 15, the means P ensure the withdrawal of the bolt in its erased position,

  when the rotor 103, 203 returns to the zero position.

  Referring to Figures 16 to 22, we can see a third embodiment of a lock

  according to the invention The elements of this iden-

  ticks or playing roles analogous to elements already described in connection with the preceding figures, are designated by numerical references whose number of hundreds is equal to 3 and whose numbers of tens and units are the same as for

  previous figures The description of these elements does not

  will not be repeated, or will be carried out succinctly.

  According to the embodiment of FIGS. 16 to 19, the bolt 306 is tiltable It is constituted by a part (see FIG. 22) of cylindrical appearance whose generatrices are oriented parallel to the axis of the rotor 303 The cross section of this bolt 306 has substantially the shape of a circular crown arc whose radius of the outer edge is substantially equal to the outer radius of the rotor 303; at one end of this cross section, situated on the right of FIGS. 16 and 18, the bolt 306 comprises a head 59 of larger dimension in the radial direction, projecting inwards by a spout 60, and, towards the outside, by a rounded part 61 At its end facing the threshing machine, the bolt 306 carries, in this part 61, a cylindrical finger 62 projecting relatively to the transverse face of the bolt,

parallel to the generators.

  The longitudinal edge of the bolt 306 opposite the head 59 comprises two notches 63, adjacent to each of the longitudinal ends of the bolt. A bore is provided, in this edge, parallel to the generatrices of the bolt, over the entire length so as to pass through the two notches 63 This bore is suitable for receiving a hinge pin 64 formed by

a cylindrical rod.

  The rotor 303 has on its outer wall, a recess 65 adapted to receive the major part of the bolt 306 Two bearings 66 are provided in this recess 65 to be received in the notches 63, these bearings comprising

  bores for the passage of the rod 64.

  The finger or lug 62 is suitable for being

  engaged in a circular groove 67 provided on the bat-

  teuse 304 and centered on the axis of the rotor 303 The radius of this groove 67 is determined in such a way that, when the finger 62 is engaged in this groove, the

  bolt 306 is held in a raised position vis-

  with respect to the rotor 303, as shown in FIG. 16,

  the spout 60 being spaced apart from the flakes 309.

  A radial notch 68 is provided on the inner edge of the groove 67, to receive the

  finger 62 and thus allow tilting, radial-

  inward, clockwise according to the

  representation of FIGS. 16 and 18, of the bolt 306.

  The rotor 303 has a longitudinal window.

  nale 69 communicating with the housings in which the glitter 309 constituting the

selection bodies.

  Each straw 309 has, on its longitudinal edge facing the blade 306, a notch 70 suitable for receiving the corresponding longitudinal zone

spout 60.

  Elastic means 74 (see FIG. 20) are provided to urge the bolt in rotation towards the inside of the rotor 303, that is to say in the clockwise direction around the rod 64 according to the representation of FIGS. 16 and 18 The notches 70 are arranged in such a way that, when a conforming key has been inserted into the housing of the rotor 303, the notches are aligned in a direction parallel to the axis of the rotor and are located at the right of the spout 60 for

receive it.

  Indexing of the position of the thresher 304 relative to the stator 302 (see FIG. 20) in the rest position or zero position is obtained at

  using a 354 radial mobile locking pin

  lying in a groove 71 provided in the thresher and which communicates with an area of the groove 67, on the side

opposite rotor 303.

  Pawn 354 has a sensitive groove

  ment in an arc 72 suitable for being placed opposite the corresponding area of the groove 67 in order to receive the end of the finger 62 The dimensions of the parts are such that when the finger 62 is engaged in the groove 67, the end outer radial of the pin 354 protrudes beyond the outer contour of the thresher 304 and is engaged in a housing 358 provided on the stator 302 A pusher 73 is disposed in this housing 358 and is pushed by a spring of

  compression 74 which therefore requests the bolt 306 at the bottom

inwardly.

  That said, the operation of the latch

Figures 16 to 22 is as follows.

  When a conforming key 307 is inserted into the rotor, the notches or notches 70 of the flakes 309 align and the bolt 306 can tilt inwards, its beak 60 coming to be housed in the notches 70, while the finger 62 enters the notch 68 This movement of the bolt is helped by the spring 74 which slides, towards the center, the pin 354 in the groove 71 When the bolt occupies the position of FIG. 18, the separation face between the pin 354 and the pusher 73 is located on the cylindrical contact surface between the thresher 304 and the

  stator 302 so that the thresher can turn rela-

  stator by driving pin 354.

  This threshing movement is

  obtained by exerting an appropriate torque on the key

  shape introduced into the rotor, which allows

request the lock.

  The return to zero is ensured by the spring 329 After removal of the key, the bolt 306 is raised, under the action of the flakes 309 pushed outwards by the corresponding springs On

  find the position of figure 16.

  If a non-conforming wrench, or a tool blade, is inserted into the rotor for

  break-in, at least one of the flakes 309 does not come

  dra not in alignment, at its notch, with the other flakes, so that the beak 60 of the bolt remains in abutment on the side of this flake in the raised position of Figure 16 The pin 62 remains

in the throat 67.

  The rotor 303 is free to rotate and can rotate, under the effect of a torque, the finger 62 is

  moving in the throat 67, without causing the bat-

  teuse. According to the embodiment of FIGS. 16 to 22, the means for withdrawing the bolt 306 in its erased (raised) position from FIG. 16 are formed by the inclined surfaces conjugate with the notches 70 and the

  spout 60, combined with the springs e.

  The key used for the lock of Figures 16 to 19, as well as that intended for the lock of

Figures 7 to 10 is a flat wrench.

  Referring to Figures 23 to 25, we can see a fourth embodiment of a lock according to the invention, more particularly intended to operate with a round key.

  Figures 23 to 25 identical or playing analog roles

  gues to elements already described in connection with the preceding figures, are designated by numerical references whose number of hundreds is equal to 4 while the figures of tens and units

  are the same as in the previous figures.

  The description of these elements will not be

  resumption or will be carried out only succinctly.

  The pin 406 is placed at the end of the rotor

  403, outside this rotor The blade 406 has sensi-

  the shape of a cylindrical cap covering the end of the rotor 403 The bolt 406 comprises a cylindrical skirt JA, coaxial with the rotor, engaged in a circular opening 75 provided in a radial extension 76 of the rotor 403 The edge of the skirt i engaged in the opening 75 admits a section in the form of an angle, the apex of which faces the interior of the extension 76 This extension has bores 77 oriented radially opening outwards as well as in the housing 408 intended to receive the key 407. A piston 410 is slidably mounted in each radial bore 77, the piston being biased by a compression spring radially inwardly in order to project, by one end

  rounded, in housing 408 Each piston 410 comprises

  bears on its cylindrical surface a circular groove

  laire 78 V-section, combined with the shape of the edge of the cylindrical skirt i The lengths of the pistons 410 projecting into the housing 408 and the positions

  grooves 78 are chosen to form a com-

  pairing to which the fingerprints provided on a conforming key 407 must correspond so that, when this key has been introduced into the housing 408, as shown in FIG. 24, the grooves 78 all come opposite the edge of the skirt ji which can s 'engage in said grooves, which allows a displacement in translation of the bolt 406 towards the rotor 403. The bottom of the housing 408 comprises a pin 79, provided with two opposite parallel flat faces adapted to cooperate with a conjugate recess 80 provided at the end of the 407 key for rotating drive

rotor 403 from the key.

  The bolt 406 is extended, on the side opposite the rotor, by a cylindrical body 81 of smaller

  diameter which freely rotates through an opening

  ture provided in the thresher 404 This body 81 has on its periphery teeth 452 adapted to cooperate

  with corresponding teeth 457 provided on the bat-

  when the bolt 406 has been pushed back towards the rotor 403 (FIG. 24) by the spring 415 disposed between the thresher and the teeth 452, forming means of displacement P An elastic stop ring 82 is anchored

at the end of the body 81.

  The bolt 406, in its position erased from Figure 23, is free to rotate relative to the rotor 403 To establish a rotational connection, between these two elements, in the position of Figure 24, teeth 83 distributed over the entire circumference are provided inside the skirt i at its base These teeth 83 are intended to engage in corresponding housings 84 provided at the periphery of the rotor 403, when the bolt 406 comes against the rotor 403 by its

translational movement.

  The thresher 404 comprises a sleeve 85 engaged in a cylindrical opening of the stator 402 and surrounding the bolt 406 This sleeve 85 is crossed by holes oriented radially, a pin 454 being engaged in each hole and being biased radially inward by a pusher 473 capable of sliding radially in a housing of the stator 402, while being pushed towards the axis of this stator by a spring 474 The rounded internal end of each finger 454 bears against a frustoconical surface 86 provided as an extension of the external base of the skirt i The set is arranged so that the

  separation surface between finger 454 and pus-

  evening 473 is on the outer cylindrical surface of the sleeve 85 when the bolt 406 has moved towards the rotor 403, as shown in the

  figure 24 Thresher 404 can then turn freely-

relative to stator 402.

  On the other hand, when the bolt 406 occupies its position erased from FIG. 23, the pusher 473 is

  partially engaged in the corresponding hole of the bat-

  teuse 404, which is locked in rotation by

compared to stator 402.

  The return to zero of the lock is ensured by the

torsion spring 429.

  The operation of the lock of FIGS. 23 to

is the next.

  When a conforming key 407 is inserted into the housing 408 (see FIG. 24), the pistons 410 are positioned so that their grooves 78 are opposite the edge of the skirt J The bolt 406 moves to the right under the action of spring 415,

  the edge of the skirt J entering the grooves 78.

  This translational movement of the bolt 406 ensures the engagement of the teeth 452, 457 and therefore the rotational connection of the thresher 404 and the bolt The teeth 83 engage in the housings 84, and ensure

  the rotational connection of the bolt 406 and the rotor 403.

  Simultaneously, the pins 454 have been pushed back by the frustoconical surface 86, which frees the thresher relative to the stator 402. When removing the key 407, the pistons 410 move radially; the cooperation of the inclined surfaces of the groove 78 and the edge of the skirt j, which form the withdrawal means, cause the recoil

  bolt 406 in the cleared position of figure 23.

  If a bad key is inserted into the housing 408, at least one piston 410 will not be correctly pushed back and the edge of the p Ane 406 will not be able to enter the groove 78 of this piston In other words, the bolt 406 will remain in the retracted position

shown in Figure 23.

  The rotor 403 can rotate freely, under the action of a torque exerted on the wrong key, without

  drive the thresher 404 or the lock.

  Referring to Figures 26 and 27, we can see a fifth embodiment of a lock according to the invention The elements of this lock identical or playing roles analogous to elements already described with respect to the previous figures are designated by numerical references whose hundreds digit is 5 and whose tens and units digits are the same as

  in the previous figures The description of these

  items will not be resumed or will only be carried out

succinctly.

  The rotor 503 comprises a set of locking elements 87 a-87 f, six in number in the example considered, with variable geometry Each element such as 87 a, is formed by a truncated cone whose bases are not parallel; at least one of these bases is located in a plane orthogonal to the axis of the stator 502 The base of an element such as 87 b, orthogonal to the axis of the stator is in contact with the base of the neighboring element which is also orthogonal to this axis The other base of each locking element 87 a-87 f inclined with respect to the axis of the stator 502 is in contact with an inclined base of the same

  way of a neighboring element Two elements of condemnation-

  neighboring nation for example, 87 c-87 d are solicited to

  the spacing, in the radial direction, by an elastic means

  tick, in particular formed by a compression spring 88, provided between them Each element 87 b-87 f is crossed by a rectangular passage 89 b89 f whose height is equal to the overall width of the part of the flat key 507 intended for be introduced into the rotor An opening 89 a is also provided in the last interior element 87 a; the height of this opening 89 a can be limited to the height of the end

of key 507.

  The locking elements 87 a-87 f and the conforming key 507 are arranged so that when this key has been inserted into the series of openings 89 a-89 f, a transverse edge of each opening is in abutment against a zone of the key and

  the external surfaces of the elements 87 a-87 f recon-

  set up a frustoconical axis revolution surface

confused with that of stator 502.

  The bolt 506 is formed by a sort of bell which covers the locking elements 87 a-87 f; the bolt 506 has a frustoconical cavity

  of revolution 90 which marries the truncated surface

  conical envelope of the elements 87 a-87 f when the conforming key 507 is inserted The small base of this

  frustoconical cavity is close to the thresher 504.

  The inclination of the surfaces is such that when the key 507 is not introduced into the rotor, the thrust action of the springs 88, which separate the elements

  87 a-87 f, causes the retraction of the bolt 506, towards the bat-

  teuse 504, in the rest position shown on

Figure 27.

  There are teeth 552.557 to establish a rotational connection between the bolt and thresher, when the bolt has moved in translation (Figure 26) away from the thresher Teeth 552 are carried by the extension 581 of the bolt 506 On

  finds the elements of conviction 554, 573 allows-

  both to block the rotation of the relative thresher-

  ment to stator 502 and to release it, by cooperation of pin 554 with the frustoconical outer surface 586

  of bolt 506, when the latter deviates from the bat-

teuse.

  Teeth 91 are provided on the outer edge of the large base of the latch 506 to cooperate with teeth 92 provided on the inner periphery of the large base of a frustoconical part of the stator cavity 502 Teeth 91 and 92 engage in the disengaged position of the bolt, that is to say in the position of FIG. 27 where the bolt is close to the thresher 504 The bolt is then locked in rotation

relative to stator 502.

  The operation of the lock of Figures 26 and 27 is similar to the operation described above. When a conforming key 507 is inserted into the rotor 503, as shown in FIG. 26, the locking elements 87 a-87 f take on a

  position to reconstitute the cut surface

  conical conjugate of the bolt cavity 506 The bolt, under the action of the spring 515, can then move away from the threshing machine 504 and therefore release the teeth 91 from the teeth 92 of the stator In addition, the teeth 552 engage in the teeth 557 establishing the connection in rotation between thresher 504 and bolt 506 Simultaneously, the thresher 504 is released in rotation relative to the stator by

the displacement of the pawn 554.

  When a torque is exerted on the key 507, the latter drives the rotor and the bolt 506 thus

  than the thresher 504, which controls the lock.

  The withdrawal of the conforming key is accompanied by the spacing of the elements 87 a-87 f, under the action of the springs 88 The peripheral frustoconical surface of these elements 87 a-87 f and of the frustoconical cavity 90 form the means of withdrawal; through their cooperation,

  they ensure the retraction of p Ane 506.

  If a dummy key is introduced into the rotor 503, the various elements 87 a-87 f do not take the configuration allowing to reconstitute the frustoconical envelope surface of revolution and the bolt

  506 remains in the vicinity of the thresher 504 A rota-

  the wrong key will simply cause a rotation

  tion of elements 87 a-87 f inside the cavity

tapered latch.

  It should be noted that rotational training

  tion of the bolt by a 507 compliant key involves the end of the key 580 engaged in a conjugate cavity

579 of the bolt.

Claims (13)

  1 Lock comprising a stator, a rotor mounted to rotate freely in the stator, a member such as a thresher provided towards one end of the rotor and a bolt suitable for passing from an erased position to a   active position for rotational training   tion of the thresher by the rotor, this rotor comprising   a housing opening at the end opposite to the bat-   teuse and suitable for receiving a key, selection members being provided to radially pass through the wall of the rotor and open into the housing so as to cooperate with the key so that when a conforming key has been properly inserted into the housing of the rotor , the selection members are placed in a position allowing the bolt to move towards its active position and driving the thresher, characterized in that: the bolt (6, 106, 206, 306, 406, 506) is located outside the housing (8, 108, 208, 308, 408, 508) provided in the rotor for the key; that means for moving (P) the bolt are provided outside the rotor, and suitable for moving the bolt, when a conforming key has been introduced,   towards an active position between the rotor and the bat- teuse,   means (19; P; 60, 70, e; 78, j, 87 a-   87 f, 88, 90) being further provided for returning the bolt to its erased position when the key is removed. 2 Lock according to claim 1, characterized in that the bolt (6) is mounted so as to be able to rotate with the rotor (3) while   able to move in translation, in a direction   tion parallel to that of the axis of the rotor, relative to the latter, the selection members (9) being adapted to retain in translation the blade (6) relative to the rotor as long as a key (7) conforms has not has been introduced into the rotor, while the means of displacement (P) of the bolt are constituted by elastic means (15) suitable for causing the bolt (6) to move when the selection means (9) have been suitably erased.   3 Lock according to claim 2, characterized in that the bolt (6) has the shape of a rectangular block whose length is oriented parallel to the direction of the axis of the rotor, the bolt (6) comprising, from and other of   its length, pins (12) projecting transversely   dirty, while the selection members (9) consist of pistons (10), passing through the wall of the rotor (3), provided outside the rotor with heads (11) of larger diameter, suitable for cooperating with the pins (12) for retaining the bolt, the latter   being released, relative to the rotor, when the pis-   tones (10) have been moved so that the heads (11) are   outside the socket with the pins (12).   4 Lock according to claim 3, characterized in that the pistons (10) are returned to their bolt locking position (6) by elastic pushing means (25) provided on the rotor and acting in the internal radial direction. Lock according to any one of claims 2 to 4, characterized in that the means for returning the bolt to its erased position, when the key is withdrawn, comprise a radial finger (19) passing through the bolt (6) and the rotor (3) and each end of which is adapted to cooperate with an inclined ramp (39, 36) provided respectively on the key (7) and on the stator (2), this finger (19) comprising a head provided with a groove (32) in which a circular collar (37) provided for can engage end of stator.   6 Lock according to claim 1, characterized in that the bolt (106, 206) can rotate relative to the rotor (103, 203) and is slidably mounted in the stator (102, 202), while the selection members (109 , 209) are arranged to prevent, when they are not erased by a conforming key, a translation of the bolt relative to the rotor, while leaving possible rotation of the rotor relative to the bolt, means (P; 46,47; 246 , 247) for translational driving of the bolt, in response to a rotation of the rotor, being provided, these drive means (46, 47; 246, 247) being erasable in the case where too strong resistance of the bolt ( 106, 206) in the axial movement is manifested, the rotation of the rotor (103, 203) can then be carried out without effect on the bolt (106, 206).   7 Lock according to claim 6, characterized in that the bolt (106, 206) has the shape of a U whose branches (41, 42; 241, 242)   are arranged parallel to the rotor axis and come   nent longitudinally frame this rotor (103; 203)   in two diametrically opposite zones.   8 Lock according to claim 6 or 7, characterized in that the erasable drive means of the bolt comprise, on the side of one of the two elements constituted by the bolt (106, 206) or the   rotor (103, 203), a pin (46, 246) biased elas-   tick in the radial direction and linked to this element, this pin (46, 246) being adapted to cooperate with a ramp (47, 247) inclined relative to the peripheral direction, provided on the other element, rotor or bolt.   9 Lock according to any one of the res-   dications 6 to 8, characterized in that the bolt (106) is independent of the threshing machine which is stationary in translation relative to the stator (102), a driver (50) being provided at the end of the bolt to establish a connection in rotation between the threshing machine (104) and the rotor (103) when the bolt has moved in translation, this driver (50) being clean, in   disengaged position, to establish a rotational condemnation   tion of the thresher relative to the stator, in particular thanks to a radial tab (56) cooperating with two   longitudinal slots (57, 58) provided respectively-   on the thresher and on the stator.   Lock according to any one of the res-   dication 6 to 8, characterized by the fact that the bolt (206) is integral with the thresher (204) which moves in translation with the bolt and comprises coupling means (257) with the rotor when it has been moved following rotation of the rotor (203)   after introduction of a compliant key (207). 11 Lock according to claim 1,   characterized by the fact that the bolt (306) is tilted   lant and is constituted by a part extending along the length of the rotor, this part being articulated on a longitudinal axis (64) parallel to the axis of the rotor (303) and carried externally by this rotor (303), the bolt ( 306) comprising a drive means (62) capable of cooperating with a complementary means (68) of the thresher, when a conforming key has been introduced   and that the bolt has tilted, for rotational drive threshing machine.   12 Lock according to claim 11, characterized in that the drive means is constituted by a lug (62) located at the end of the bolt (306), oriented parallel to the axis of the rotor, and suitable for engaging in a circular groove (67) of the thresher, said groove (67) having on the edge an internal radial notch (68) into which said lug (62) can enter when the bolt (306) swings inwards in response to an arrangement   selection bodies (309).   13 Lock according to claim il or 12, characterized in that the selection members consist of flakes (309) whose mean plane is orthogonal to the axis of the rotor, these flakes (309) being mounted with the possibility of sliding   radial in the rotor, each flake (309) comprises   both at least one notch (70) on a longitudinal edge   nal, these notches (70) being able to align when a conforming key (307) has been introduced into the rotor, the latter comprising a window (69) suitable for allowing the entry of a spout (60) of the tilting bolt, the assembly being such that when the notches (70) have been aligned by the introduction of a conforming key, the spout (60) of the bolt can enter these notches, which allows the radial tilting of the bolt and the entry of the drive finger (62) into the notch (68) of the thresher.   14 Lock according to any one of the res-   dications 11 to 13, characterized in that it comprises   door, for the thresher, a locking pin (354), radially movable, provided with a groove (72)   receiving the end of the lug (62), the counter pin   damnation (354) being urged by a pusher (73) disposed in a housing (358) of the stator and pushed by a spring (74).   Lock according to claim 1, characterized in that the bolt (406) is arranged   at the end of the rotor, outside of this rotor, and   carries a cylindrical skirt (j) covering the rotor (403) and passing through a circular opening (75) of this rotor, in order to be able to cooperate with the selection members (409) constituted by pistons (410) movable radially, provided with grooves ( 78), the assembly being such that when a conforming key (407) is inserted into the rotor, the pistons (410) assume positions such that the edge of the skirt (i) of the bolt cooperates with the grooves (78 ) pistons   corresponding, which allows a trans-   lation of the bolt (406) relative to the rotor and a clutch of the rotor with the bolt, and of the bolt with the thresher. 16 Lock according to claim 15, characterized in that the bolt comprises ramps (86) capable of controlling, during the movement of translation of the bolt, a radial movement of a pin   (454) to release in rotation the thresher (404) rela- stator (402).   17 Lock according to claim 1, characterized in that the rotor (503) comprises a set of locking elements (87 a-87 f) with variable geometry, formed by truncated cones with non-parallel bases, stressed at the spacing in the radial direction by elastic means (88) provided between two successive elements, these elements forming, by their juxtaposition, when a conforming key (507) has been introduced, a frustoconical assembly, the bolt (506) comprising a frustoconical cavity (90) covering the locking elements (87 a-87 f) and coming   marry the stacking of these elements when a key   shape has been introduced, the bolt (506) being pushed back in translation when the locking elements deviate from one another and being able to move, in the direction of these elements, under the action of elastic means (P, 515), when the conforming key has been inserted, the translational movement of the bolt ensuring the clutch in rotation between the bolt (506) and the thresher (504).