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EP0088012A1 - Schlüsselloses Kombinationszylinderschloss - Google Patents

Schlüsselloses Kombinationszylinderschloss Download PDF

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Publication number
EP0088012A1
EP0088012A1 EP83400367A EP83400367A EP0088012A1 EP 0088012 A1 EP0088012 A1 EP 0088012A1 EP 83400367 A EP83400367 A EP 83400367A EP 83400367 A EP83400367 A EP 83400367A EP 0088012 A1 EP0088012 A1 EP 0088012A1
Authority
EP
European Patent Office
Prior art keywords
discs
coding
rotor
decoding
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83400367A
Other languages
English (en)
French (fr)
Other versions
EP0088012B1 (de
Inventor
Jacques Peyronnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINILOCK SA
Original Assignee
MINILOCK SA
Initial SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MINILOCK SA, Initial SAS filed Critical MINILOCK SA
Publication of EP0088012A1 publication Critical patent/EP0088012A1/de
Application granted granted Critical
Publication of EP0088012B1 publication Critical patent/EP0088012B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/08—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted for adjusting the discs

Definitions

  • the present invention relates to keyless combination locks, and more precisely a so-called cylinder lock, to keyless combination.
  • Keyless combination locks conventionally consist of a plurality of coaxial coding discs each provided, on the one hand, on their periphery, with a notch intended to receive a blocking element of a bolt, when all the notches discs are aligned, on the other hand with a protruding lug on either side of the plane of the discs; by driving one of the coding discs in rotation, by operating a drive member integral with the latter, the coding pins of the driven disc and of the disc adjacent to it are brought into contact, so as to move in turn the adjacent disc in question, and so on for each of the lock discs, until all the notches of the discs are aligned to receive the element of the latching bolt.
  • the drive member can, when it is pivoted, appropriately, command the withdrawal of the bolt.
  • the relative distribution of the notches and the pins on each of the discs is chosen to be arbitrary, so that it is essential to know "the combination" in order to be able to correctly align the notches of the discs by maneuvering the drive member.
  • key cylinder locks tend to be preferred, in a large number of uses, at the expense of keyless combination locks.
  • These cylinder locks are composed of a stator, a rotor contained in the stator and a blocking element disposed between the rotor and the stator, and capable of being moved between a first position in which the element blocking prevents rotation of the rotor, and a second position allowing movement of the latter.
  • the blocking element is formed by a plurality of flakes, extending perpendicular to the axis of the rotor, offset between them in the rest position, by biasing an elastic member, to protrude at the outside of the rotor.
  • the introduction of the key aims to align all the flakes and cause them to be flush with the stator so as to allow the rotation of the rotor by pivoting the key.
  • a plurality of discs provided with an external notch, and on the other hand, a blocking bar or chuck, which is intended to penetrate into the notches of the discs, when these are aligned.
  • the appropriate key to open the lock is designed to rotate each of the discs by a given angle adequate to align the notches, when turned by a determined angle.
  • the discs being thus aligned, and the blocking bar having penetrated into the notches of the discs, the continuation of the rotation of the key causes the pivoting of the rotor, by carrying a peripheral portion of the discs protruding, in contact with the rotor .
  • the alignment of the notches of the discs is carried out by rotation of the key on a close angle of 90 °, the penetration of the chuck in the notches is carried out following an additional rotation, and finally the rotation of the rotor is carried out by continuing the rotation, the key having brought into contact the peripheral projection of the discs and a corresponding stop provided on the rotor.
  • keyless combination locks generally only allow the movement of a bolt by linear sliding or tilting, but not the complete rotation of one or more turns of an intrinsic operating member of the lock.
  • keyless combination locks are generally only achievable in two positions: an "open” position and a “closed” position. While certain key locks allow several "open” and “closed” positions and can thus lock, for example, rotary switches in a plurality of distinct positions.
  • the present invention now provides a particularly elegant solution to the problem previously posed.
  • the present invention indeed provides a cylinder lock, keyless combination.
  • the lock according to the present invention therefore incorporates the advantages inherent on the one hand to cylinder locks, on the other hand to keyless combination locks.
  • the keyless combination cylinder lock comprises a stator which envelops a rotor and at least one locking element disposed between the rotor and the stator, the locking element being able to be moved between a position locking in which it prohibits rotation of the rotor with respect to the stator, and a neutral position in which it authorizes rotation of the rotor as well as a plurality of coaxial coding discs each having, on their periphery, a notch intended to receive the blocking element, in neutral position, as well as members adapted to drive the rotation of each of the discs when one of the coding discs which is immediately adjacent to it is itself driven in rotation by a given angle, and by the fact that there is further provided a rotary member for decoding the discs cooperating in a first position with one of the discs to cause the rotation of the latter, and axially displaceable by relative to the position it occupies during decoding of the discs, to ensure the rotation of the rotor and the opening of the lock when the not
  • An intermediate disc fixed relative to the rotor, is preferably provided between two adjacent coding discs to avoid friction between them.
  • the coding discs are hollowed out centrally to receive, in crossing, the rotary member for decoding the discs, and the members suitable for driving the rotation of each of the discs are formed by coding pins, projecting on either side of the average plane of each of these.
  • each coding disc is formed of two coaxial circular plates, the inner peripheral surface of one of the plates being complementary to the external peripheral surface of the other plate, so that these can be assembled by interlocking according to a multiplicity of predetermined precise positions, the outer plate of larger diameter having said notch, while the inner plate of smaller diameter carries the coding pin.
  • an elastic element which urges the rotary member for decoding the discs in its position of cooperation with one of the coding discs.
  • the rotary decoding member has on an axial portion of its periphery, a structure complementary to the central recess of the coding disc with which it cooperates or of an intermediate device linked in rotation thereof, with or without loss of travel.
  • the rotary decoding member has, in the vicinity of one of its ends, a structure complementary to a portion of the rotor or to an element integral in rotation with the latter.
  • the rotary disc decoding member must be either pushed back or pulled relative to the position it occupies for decoding the discs, in order to cooperate with the rotor, depending on the embodiment adopted for the rotor and the member. rotary decoding.
  • the lock further comprises a dial comprising angular markers, fixed at the front on the rotary member for decoding the discs.
  • the lock comprises an independent dial intended to cooperate with the rotary member for decoding the discs and which comprises a plurality of angular references.
  • the independent dials consist on the one hand of a central support provided with structures complementary to the front face of the rotary decoding member so as to cooperate with it in a predetermined position , and on the other hand an external ring provided with angular marks, said ring being adjustable in a predetermined position on the periphery of the support.
  • a plurality of housings is provided in the stator, to receive the blocking element. If there is only one housing for the blocking element in the stator, it is advantageous for the latter to be located at the bottom of the stator, so that the blocking element is driven by gravity in its housing in the locked position.
  • a plurality of shallow notches can be provided on the periphery of the discs.
  • the predetermined positions provided on the coding discs for the so-called coding pins are arranged thereon in a manner that is not symmetrical with respect to the notch and the number of these positions is equal to half the total number of positions that pawns are likely to occupy.
  • the keyless combination lock consists of an external stator 10 which houses a rotor 20, a blocking element or lug 30 which, in the locked position, prevents rotation of the rotor 20, a plurality of coding discs ' 40, coaxial, as well as intermediate discs 60 disposed between each of the coding discs 40, a rotary member 70, for decoding the discs, and a spring 80 which biases the member rotary decoding 70 in a position of cooperation with one of the aforementioned coding discs 40.
  • the stator 10 has the general shape of a hollow cylinder. More specifically, the stator 10 is formed of a first section referenced 11 which has a thread on its outer surface, and of a second section 12, of shorter length, extending the first, and of frustoconical envelope tapering towards the front. .
  • the axial recess provided at the inside of the stator 10 has a constant diameter, however the second section 12 of frustoconical envelope has at its front free end, an annular rib 13 on its internal peripheral surface.
  • the annular rib 13 delimits a bearing surface 14 in the form of a crown, directed towards the rear of the stator 10.
  • the diameter of the small circle delimiting the crown which forms the bearing surface 14, defines the diameter of the opening circular 16 of the front face of the stator.
  • the first threaded section 11 of the stator comprises in the vicinity of its rear end, that is to say the end not accessible to the user.
  • an annular groove 15 intended to receive the retaining ring (not shown) for axially locking the rotor in the stator, as will be explained in more detail in the following description.
  • the stator 10 has a groove longitudinal (not shown) which opens inside the axial recess of the stator. The purpose of this groove is to receive the chin 30 in the "locking" position.
  • the depth of the longitudinal groove is such that when the chin is received there, in abutment against the periphery of the coding discs 40, it projects all along the longitudinal groove to penetrate the rotor so as to prevent rotation of the latter, as will be explained in more detail in the remainder of this description.
  • said longitudinal groove has a U-shaped section with divergent branches to facilitate the extraction of the chin 30 when the notches of the discs are aligned and that the rotor 20 is biased in rotation.
  • the rotor 20 of generally cylindrical shape consists of a hollow cylinder 21, obstructed at one of its ends by a rear transverse circular wall 22 which leaves, at the opposite of the aforementioned cylinder 21, an extension 23 of generally cylindrical shape, coaxial with the cylinder 21.
  • the rotor 20 being intended to be slid into the stator 10, it is understood that the external diameter of the cylinder 21 and the diameter of the rear transverse wall 22 must be slightly less than the internal diameter of the stator 10.
  • the length of the cylinder 21 and of said wall rear transverse 22 must be slightly less than the distance defined on the stator between the bearing surface 14 and the annular groove 15 above.
  • the axial extension 23 is intended to receive in rigid fixing any suitable conventional device serving to carry out strictly speaking the closing of the device which it is desired to lock.
  • the axial extension 23 will preferably be of general square or non-cylindrical shape, and threaded so that said suitable closure device can be easily secured to it using a nut-against-system. nut.
  • One of the slots (24) serves as a housing for the projections (62) - intermediate discs (60), as will be described in more detail in the remainder of this description.
  • the other slot (25) serves as a housing for the blocking bar or spur 30.
  • the rotor 20 also has a structure referenced 26 in FIG. 1, complementary to the member 70. This will be described in more detail by the following.
  • the chin 30 can be produced in a conventional manner per se in the form of a cylindrical rod.
  • the diameter and the length of the chin 30 must be adapted on the one hand to penetrate into the slot 25 provided for the latter in the rotor 20, and on the other hand, to be housed in the longitudinal groove of the stator 10 between the bearing surface 14 and the annular groove 15.
  • the chin 30 may take many other forms.
  • the chin 30 can be made in the form of an elongated element of circular or rectangular section, on which are positioned a plurality of lugs in number equal to the number of coding discs (40), and according to a spacing corresponding to the spacing of said coding discs.
  • the chin 30 or locking bar is formed of a single element, so that this element can not be moved to allow the rotation of the rotor 20 only in the case where the assembly coding discs (40) is in a suitable position.
  • the rotary decoding member 70 also has a generally cylindrical shape. More precisely, the rotary decoding member 70 consists of two cylindrical sections 71 and 72 of different diameters, superimposed. The cylindrical section 71 of larger diameter, which constitutes the front portion of the rotary member 70, is provided with a peripheral annular rib 73. The surface 74 in the form of a crown, this peripheral annular rib 73, which is directed towards the front of the rotary decoding member is intended to come into abutment against the bearing surface 14 defined on the stator 10.
  • the outside diameter of the peripheral annular rib 73 be slightly smaller than the internal diameter of the cylinder 21 of the rotor 20, so that the rotary decoding member 70 can be introduced into the rotor 20.
  • the cylindrical section 71 has a diameter slightly less than the circular opening 16 defined at the rib 13, in the frusto-conical section 12 of the stator 10.
  • the surface 78 in the form of e crown of the peripheral annular rib 73, oriented towards the rear of the rotary member of decoding 70 is intended to constitute a bearing surface for a spring 80.
  • the front face of the rotary decoding member 70 must include structures allowing a removable assembly and in a position precise and predetermined angle, of said independent dial, on this member.
  • the structures in question are formed by two holes 76 and 77 complementary to two lugs provided on the dial (90) as will appear on reading the description which follows and as this is in particular shown in FIG. 14.
  • the two holes 76 and 77 can be offset and diametrically opposed, but have different diameters so as to allow the cooperation of the dial 90 and the rotary decoding member 70 only in a single angular position.
  • the two orifices 76 and 77 of the same diameter but in non-diametrically opposite positions. It is likewise possible to provide, that one of the holes is centered and the other eccentric, which allows, as far as or the first lug intended to enter the central hole has a length greater than the second, to carry out a "blind positioning" by insertion of the first lug in the corresponding central hole, and search, by rotation, for the appropriate angular position between the dial and the member 70, the latter being obtained when the second lug enters the corresponding eccentric hole.
  • said structures provided on the front face of the rotary decoding member can take any prismatic shapes provided that they are not symmetrical and in particular be formed projecting from the front face of member 70, and not hollow.
  • the rotary decoding member 70 may include at its rear end a plurality of radial lugs 75 regularly distributed over its periphery (9 in number according to the embodiment shown in Figure 3c, and 5 in Figure 1).
  • the rotary decoding member 70 does not have radial lugs 75 over its entire periphery, but at least one of said lugs must be removed, so as the rotary decoding member 70. can penetrate the coding discs 40, equipped with a coding and drive pin 49, as will be described later.
  • the rotary decoding member 70 must in a given position, ensure the rotation of the rotor 20.
  • Said complementary structure provided on the rotor 20 and shown in FIG. 1 bears the reference 26. More precisely, this structure 26 is constituted by a star-shaped recess (with six branches, according to the embodiment of FIG. 1 regularly distributed) intended to receive the radial lugs 75 of the member rotary decoding 70.
  • the recess 26 must have dimensions slightly greater than the diameter of the portion 72 of the rotary decoding member 70 and the radial lugs 75 which are superimposed thereon.
  • the thin coding discs 40 have on their periphery a notch 41 intended to receive, in the "neutral" position, the blocking bar or chin bar 30.
  • the depth of the notch 41 must be such that when the chin bar has penetrated therein it does not protrusion outside the rotor or at the very least that it allows the rotation of the rotor and that for this it has left the longitudinal groove of the stator.
  • the notches 41 have a U-shaped cross section with divergent branches so as to facilitate the expulsion of the chuck from the notches during the scrambling of the combination.
  • coaxial coding discs 40 comprise members formed of projecting elements on either side, which are adapted to drive the rotation of each of the discs when one of the coding discs which is immediately adjacent to it. is rotated by a given angle. Said projecting members on either side of each disc are distributed at equal distance from the axis of the discs on a given circular perimeter defined on each disc but in variable positions in steps relative to the notch 41.
  • the discs coding must be hollowed centrally at 42, so as to receive, in crossing, the portion 72 of small diameter of the rotary decoding member 70, while being free to rotate relative thereto.
  • one of the coding discs must preferably have a structure complementary to the structures (radial pins 75) provided at the rear part of the section 72 of the rotary decoding member 70, so as to cooperate with it and be driven in rotation, when the rotary decoding member 70 is itself pivoted.
  • the structures (pins 75) being provided on the member 70, over any length; as shown in the figures, it is also possible to give the same structure to all of the coding discs 40.
  • These could for example be hollowed out centrally in the form of a circular orifice 42 into which opens a plurality of radial notches 43, so as to form a star recess.
  • the dage 40 must have an outer diameter smaller than the inner diameter of the cylinder 21 of rotor 20 so that they can be threaded therein.
  • the coding discs 40 also have on their periphery a plurality of notches 44 clearly less deep than the aforementioned notch 41, the notches 44 are intended to disturb the "feel" of the combination.
  • the intermediate discs 60 are also provided with a notch 61 on their periphery, similar to the aforementioned notch 41, for receiving in the neutral position, the blocking bar or stud 30.
  • intermediate discs 60 are thin and have an outside diameter smaller than the inside diameter of the rotor cylinder 21 20.
  • the intermediate discs 60 are provided on their periphery with a radial projection or "tail" 62 intended to penetrate the corresponding housing 24 of the cylinder 21 of the rotor 20.
  • the purpose of the tail 62 is to immobilize the intermediate discs 60 relative to the rotor. To do this, the width of the tail 62 must of course be slightly less than the width of the slot 24 provided at the rotor 20.
  • the role of the intermediate discs 60 is to eliminate any parasitic friction between two adjacent 40 encoding discs.
  • the intermediate discs 60 ensure the spacing of the coding discs between them, so that these can only contact each other through the lateral surfaces of their coding pin 49, without the pins 49 being able to touch the coding discs, axially.
  • the thickness of the intermediate discs 60 is between the projecting height of a pin 49 and twice the height thereof.
  • the intermediate discs 60 are provided with an axial cylindrical recess 63 with a diameter greater than the diameter of the envelope defined by the radial lugs 75 on the rotary decoding member 70 so as to allow the free rotation of the member 70 .
  • the tail 62 is diametrically opposite the notch 61, the intermediate disc 60 having the general shape of a crown.
  • other provisions may also be adopted.
  • a spring 80 intended to be inserted between the bearing surface 78 defined on the peripheral annular rib 73 of the rotary decoding member 70 and the stacking of the interlayer 60 and coding discs 40 threaded on the latter.
  • the purpose of the spring 80 is to urge the rotary member 70 for decoding the discs in a position of cooperation with one of the coding discs.
  • the spring 80 is formed by a compression spring which pushes the member 70 towards the front of the lock.
  • the coding discs 40 are not provided with a star-shaped recess (42, 43) capable of receiving a coding pin in different predetermined positions on a given circular perimeter, but that each coding disc has a plurality of tapped orifices regularly distributed over the perimeter in question and intended to receive coding pins threaded in the appropriate position.
  • each coding disc 40 may be composed of two coaxial circular plates 140 and 145 intended to be assembled by interlocking.
  • the inner peripheral surface 144 of one of the plates (140) being complementary to the outer peripheral surface (147) ; of the other plate (145), so that these can be assembled according to a multiplicity of precise predetermined positions.
  • said inner peripheral 144 and outer 147 surfaces are formed by '' straight teeth.
  • any polygonal shape is acceptable, to avoid the relative rotation of the two parts while allowing assembly by interlocking according to a plurality of predetermined positions.
  • the part 140 of larger diameter comprises on its periphery said notch 141 as well as a plurality of notches 143 of shallow depth intended to disturb the "tatage" of the combination, while part 145 of smaller diameter comprises the coding and drive pin 149 which protrudes on either side perpendicular to its mean plane and is provided with an axial bore 146 of diameter greater than the outside diameter of the member 70 T
  • a coding disc must again have a structure capable of making it integral in rotation with the member 70, with or without loss of travel.
  • the compression spring 80 is disposed between the bearing surface 78 defined on the peripheral annular rib 73 of the rotary member 70 and the stack of coding discs 40 and intermediate discs 60.
  • the compression spring 80 could be disposed between the stack of the aforementioned discs and the rear transverse wall 22 of the rotor. The operation of such a lock would remain identical to the operation previously described. provided that the structure of the member 70 (pins 75) intended to cooperate with a coding disc is disposed at the level of this and that a structure capable of cooperating with the rotor is also provided when the member 70 is moved in translation,
  • the rotary decoding member 70 of the discs 40 should no longer be pushed back to cooperate with the rotor 20 but should be pulled.
  • the action of the spring 80 must of course be opposite to that previously described.
  • a tension spring connected between the rear end of the rotary decoding member 70 and the rotor 20.
  • the structure (lugs 75) of the member 70 cooperating with one decoding discs 40 must of course be adapted accordingly.
  • the elastic element may urge the rotary member for decoding the discs in the position of cooperation with the rotor or a member integral in rotation with the latter. It is then necessary to move the rotary decoding member against the action of the elastic element to cause this member to cooperate, with or without loss of travel, with a coding disc.
  • the spring is shown on the outside of the rotary decoding member 70, it is also possible to guide said spring in an internal cylindrical bore provided for example in section 72 of the the rotary member 70 so that the spring comes to bear on the one hand against the bottom of said bore and on the other hand against the rear transverse wall of the rotor 20.
  • a dial comprising the angular marks, fixed at the front on the rotary member 70 for decoding the discs, to precisely control the pivot angle thereof. It is also possible to provide an independent dial intended to cooperate with the rotary member for decoding the discs and which comprises a plurality of angular references.
  • FIG. 14 Such an independent dial is shown in particular in FIG. 14.
  • This figure indeed shows a dial 90 which is composed on the one hand of a central support 91 provided with structures 95 and 96 complementary to the orifices 76 and 77 of the front face of the rotary decoding member 70 so as to cooperate with the latter in a predetermined angular position.
  • the central support is formed by two coaxial cylindrical sections 92 and 93 joined together.
  • the section 92 of larger diameter is grooved to facilitate handling.
  • the smaller diameter section 93 has on its end face cylindrical projections 95 and 96 of respective diameters 1 slightly smaller than those of the blind holes 76, 77 provided on the front face of the rotary decoding member 70.
  • the dial includes an outer ring 97 provided with angular references 99 schematically represented.
  • the ring 97 is intended to be threaded over the small diameter section 93 of the aforementioned support 91.
  • each of these two elements is provided with an orifice referenced respectively 98 and 94, which are intended to receive a fixing member such as a screw.
  • the orifice 94 provided in the central support 91 will of course be threaded.
  • the same independent dial can be manipulated with the right hand or the left hand by reversing the ring 97 on the support 91.
  • the dial 90 is made completely unusable for a person who does not know the precise precise position between these two elements. This provision limits the risks caused by the loss, theft or copying of such a dial.
  • a dial functionally equivalent to the dial 90 which has just been described can also be fixed permanently on the front face of the member 70, for example by gluing or screwing.
  • a plurality of housings or longitudinal grooves is provided in the stator 10 to receive the chin 30.
  • said housing of the chin 30 in the stator modifies the combination of the lock by incrementing the various digits of the combination, since the latter depends on the position of the stud 30 relative to a fixed external reference mark on the stator.
  • the rotor 20 does not have a housing 26 complementary to the structure (lugs 75) provided on the rear part of the rotary decoding member 70, but that on the other hand this the latter cooperates with a so-called drive disc 50, as shown in FIG. 7, this drive disc is preferably adjacent to the transverse wall 22 of the rotor 20.
  • this disc drive comprises a central recess 52 complementary to the structure provided at the rear part of the rotary member 70.
  • said recess therefore has a star shape whose number of branches 53 depends on the number of lugs 75 of the rotor (in this case the number of pins, plus one).
  • the drive member also comprises, on its periphery, a notch 51 similar to the notches 41 and 61 provided on the coding discs 40 and spacers 60.
  • the drive disc 50 comprises, diametrically opposite the notch 51, a projection or tail 54 similar to the tail 62 described opposite the intermediate discs 60.
  • the width of the tail 54 must be less than the width of the slot 24 provided on the rotor 20 so that the drive discs 50 can be threaded into the rotor 20, the tail 54 taking position in the slot 24 to immobilize the drive disc 50 in rotation relative to the rotor 20.
  • the operation of such a lock is strictly identical to the operation of the lock shown on Figure 1.
  • the spring 80 spreads the pins 75 of the rotary decoding member 70 and the drive disc 50.
  • the orane decoding 70 is then only engaged with the last coding disc 40.
  • the rotary decoding member 70 is moved against the action of the spring 80, the rotary member 70 enters the star housing provided in the drive disc 50, so as to drive the latter and the rotor 20 if the discs 40 have been correctly aligned.
  • a first intermediate disc 60 (not shown in FIG. 1 to simplify the representation) a coding disc 40 comprising a drive and coding pin 49 (the star of the rotary member 70 passes through the female star 42 of the coding disc 40, one of the branches of which is obstructed by a coding pin 49 , a second intermediate disc 60 and a second coding disc 40, and, depending on the number of discs chosen, for example a third intermediate disc 60 and finally a third coding disc 40 - (not shown).
  • the last disc remains integral in rotation of the rotary member 70 by means of the pins 75.
  • a last intermediate disc 60 is then threaded onto the member 70. In FIG. 1, only two coding discs have been shown.
  • the intermediate discs 60 can only rotate with the rotor 20 since the tail 62 enters the slot 24.
  • the intermediate discs thus prevent any parasitic friction between two adjacent coding discs 40.
  • the coding discs 40 ensure the spacing between the coding discs 40.
  • the predetermined positions provided on the coding discs 40 for the so-called coding pins 49, namely the branches 43 of the star recess provided therein are even and arranged in a non-symmetrical manner relative to the notch (1 and the number of these positions is equal to half of the total number of positions that are likely to be occupied by the pawns 4 9.
  • the rotor 20 To make the opening of the lock, the rotor 20 must rotate in the stator. It is initially prevented by the blocking bar or chin 30 which creates an interference between the rotor 20 and the stator 10. It is therefore necessary to allow the rotation of the rotor that the blocking bar 30 enters the notches 41 provided at the level coding discs 40, as well as in the notches 61 provided in the intermediate discs 60, so that the locking bar 30 comes out of the longitudinal groove provided in the stator.
  • the alignment of the coding disks 40 is done by the rotation of the rotary decoding member 70, by controlling the angle of rotation thereof using an optionally removable dial as shown in FIG. 14.
  • This rotary decoding member 70 which constitutes in some way so the axis of the lock is pushed back at rest, towards the front, by the aforementioned spring 80. In this position, the rotary decoding member 70 cooperates only with the rearmost coding disc according to the embodiment shown, and cannot drive the rotor 20. When the rotary decoding member 70 is pushed backwards of the lock, against the action of the spring 80, it enters the housing 26 provided in the rotor 20 and can then drive the latter, if the coding discs have been correctly aligned.
  • a zone of least resistance is preferably provided in the rotary decoding member 70, so that if the coding discs 40 are not correctly aligned and that too much torque is exerted on the rotary decoding member 70, aimed at violating the lock, the axis will break and turn idle.
  • the process of decoding discs is well known in itself to those skilled in the art and will therefore not be explained in detail.
  • combination lock according to the present invention can be opened by rotation of the rotary decoding member 70 and of the rotor 20 in both directions, which is not the case with locks. with classic combinations.
  • the housing of the locking bar or chin 30 provided at the stator 10 has a concavity such that if the notches 41 of the coding discs are aligned, the locking bar is forced into them when the rotor is rotated, to release the latter. It should be noted that in this position, it is impossible to rotate the coding discs 40, since these are immobilized; by the chin 30. This consequently prohibits any pressure on the locking bar 40 in order to feel the notches during the rotation of the discs. On the other hand, the "tatage" of the combination which could be done by trying to feel the notches 41 provided on the coding discs 40, "tatage” which is preferably carried out using the weight of the locking bar , is disturbed by the shallow notches 43. It is understood, of course, that the false notches 43 must have a depth much less than the real notch 41 to prevent the withdrawal of the flange from the longitudinal groove of the stator.
  • the housing of the blocking element or spigot 30 is located at the bottom of the stator, so that the blocking element is driven by gravity in its housing in the stator. and that gravity thus moves the flange 30 away from the coding discs 40. It then becomes completely impossible to feel its contact on the coding discs 40 during the rotation of the latter, which prohibits any "tatage".
  • the first solution consists in swapping the disks 40.
  • the lock has three disks, it suffices to disassemble and reassemble the stack of coding disks 40 in a different order. This way of proceeding gives six possible combinations.
  • the second solution consists in operating a reversal and a permutation of the coding disc 40.
  • Such an arrangement naturally requires that the discs be symmetrical.
  • the coding and driving pin 49 is positioned symmetrically with respect to the notch 41, turning the coding disc 40 is enough to change the relative position between the coding and driving pin 49 and the corresponding notch 41 and therefore suffices to change the coding number of the disc in question.
  • Number of. possible combinations offered through flipping and permutation amounts to 48.
  • each drive and coding pin 49 can be "planted and planted" at will in one of the branches of the star orifice. provided at each coding disc 40.
  • such an arrangement insofar as twenty possible positions of the drive and coding pin 49 are provided on the disc offers eight thousand possible combinations.
  • the number of acceptable combinations for 20 possible positions of the pin 49 on the disc 40 is therefore limited to 6,840 real combinations.
  • discs can be used on which the position of the pin relative to the notch is modified using a changer key. Such discs are classic in themselves.
  • the pins 75 provided on the member 70 may be replaced by other functionally equivalent structures. The essential thing is that in a position of the member 70, one of the coding discs 40 is immobilized in rotation, with or without loss of travel, relative to the latter and the rotor 20 free, while when the member 70 is placed in its second position, the member 70 no longer cooperates with the discs but comes into engagement with the rotor or a drive member thereof.
  • the present invention can be applied to previously existing conventional cylinder locks, in the sense that it is possible to disassemble them, to recover the stator, the rotor, the chin and the intermediate discs and to reassemble the lock according to the present invention by incorporating therein coding discs 40, a decoding member 70, a spring 80 and a drive disc 50.

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  • Lock And Its Accessories (AREA)
  • Rotary Pumps (AREA)
EP19830400367 1982-03-01 1983-02-22 Schlüsselloses Kombinationszylinderschloss Expired EP0088012B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8203335A FR2522352B1 (fr) 1982-03-01 1982-03-01 Serrure a cylindre, a combinaison sans cle
FR8203335 1982-03-01

Publications (2)

Publication Number Publication Date
EP0088012A1 true EP0088012A1 (de) 1983-09-07
EP0088012B1 EP0088012B1 (de) 1986-11-12

Family

ID=9271437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830400367 Expired EP0088012B1 (de) 1982-03-01 1983-02-22 Schlüsselloses Kombinationszylinderschloss

Country Status (4)

Country Link
EP (1) EP0088012B1 (de)
DE (1) DE3367645D1 (de)
ES (1) ES8401174A1 (de)
FR (1) FR2522352B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577268A1 (fr) * 1985-02-08 1986-08-14 Initial Sarl Serrure perfectionnee a cylindre, a combinaison sans cle et outil de changement de combinaison
WO1991018166A1 (en) * 1990-05-21 1991-11-28 Arx Pty. Limited A lock barrel assembly and key therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2192529C1 (ru) * 2001-03-20 2002-11-10 Максимов Александр Иванович Замок кодовый
EP2853661A1 (de) 2013-09-26 2015-04-01 Royal College Of Art Schloss für Fahrrad

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28656C (de) * J. GUYOT in Lyon Buchstaben-Sicherheitsvorrichtung für Schlösser
US1816575A (en) * 1928-01-23 1931-07-28 Dudley Lock Corp Permutation lock for door latches
US4170886A (en) * 1978-06-12 1979-10-16 Cowen Lloyd S Numerical combination replacement for cylinder locks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28565C (de) * F. LANGEN-HAN in Zella, St. Blasii Verschlufsvorrichtung für Gewehre mit umklappbaren Läufen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28656C (de) * J. GUYOT in Lyon Buchstaben-Sicherheitsvorrichtung für Schlösser
US1816575A (en) * 1928-01-23 1931-07-28 Dudley Lock Corp Permutation lock for door latches
US4170886A (en) * 1978-06-12 1979-10-16 Cowen Lloyd S Numerical combination replacement for cylinder locks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577268A1 (fr) * 1985-02-08 1986-08-14 Initial Sarl Serrure perfectionnee a cylindre, a combinaison sans cle et outil de changement de combinaison
EP0192544A1 (de) * 1985-02-08 1986-08-27 Minilock S.A. Schlüsselloses Kombinationszylinderschloss und Werkzeug zur Veränderung der Kombination
US4726204A (en) * 1985-02-08 1988-02-23 Minilock S.A. Key-less combination cylinder lock, and a combination-changing tool
WO1991018166A1 (en) * 1990-05-21 1991-11-28 Arx Pty. Limited A lock barrel assembly and key therefor

Also Published As

Publication number Publication date
ES520162A0 (es) 1983-12-01
DE3367645D1 (en) 1987-01-02
FR2522352A1 (fr) 1983-09-02
ES8401174A1 (es) 1983-12-01
EP0088012B1 (de) 1986-11-12
FR2522352B1 (fr) 1985-12-06

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