EP0006765B1 - Schlösser mit Stiftzuhaltungen - Google Patents

Schlösser mit Stiftzuhaltungen Download PDF

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Publication number
EP0006765B1
EP0006765B1 EP79301277A EP79301277A EP0006765B1 EP 0006765 B1 EP0006765 B1 EP 0006765B1 EP 79301277 A EP79301277 A EP 79301277A EP 79301277 A EP79301277 A EP 79301277A EP 0006765 B1 EP0006765 B1 EP 0006765B1
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EP
European Patent Office
Prior art keywords
sleeve
lock
plug
locking
sleeve member
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.)
Expired
Application number
EP79301277A
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English (en)
French (fr)
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EP0006765A1 (de
Inventor
Brian J. Monahan
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Individual
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Individual
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Publication date
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Priority to AT79301277T priority Critical patent/ATE2348T1/de
Publication of EP0006765A1 publication Critical patent/EP0006765A1/de
Application granted granted Critical
Publication of EP0006765B1 publication Critical patent/EP0006765B1/de
Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/005—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with changeable combinations

Definitions

  • the present invention relates to pin tumbler locks, and more particularly to pin tumbler locks in which the key combination can be changed to and from a multiplicity of different key combinations.
  • One type of lock having provision for changing the key combination is a construction lock as proposed in GB-A 955828.
  • the lock is operable by construction key. After construction is completed and ownership is transferred, it is desired to conveniently and permanently lock out the construction key and provide the occupant with a lock operable only by a unique combination key. Once changed to the occupant key combination, the combination can never thereafter be changed again without removing the lock from its installed position and disassembling the lock.
  • the construction pin tumbler lock employs a concentric ring intermediate a plug member and a housing member of the lock. The concentric ring normally remains stationary within the housing during normal operation and rotation of the plug by the construction or occupant key.
  • a special change key is employed to release the shear interface between the ring and the housing and allow the ring to rotate in conjunction with the plug.
  • the ring is rotated to a predetermined position at which a special chamber in the ring receives a change element in the form of a pin from the locking stack. Once this pin is positioned in the special chamber, it can never thereafter be moved back into the locking stack to regain the original combination.
  • the ring is rotated back to the normal position, the pin is removed from the locking stack, and the combination is permanently changed.
  • the construction key is permanently locked out, and the occupant key has the only correct combination.
  • a key combination changing pin tumbler lock comprising a housing member, a sleeve member movably received within the interior of the housing member, a plug member rotatably received within the interior of the sleeve member, said plug member having a keyway formed therein for receiving a key, a locking stack assembly comprising elements including a driver pin, a locking pin, a change wafer, a tumbler pin and means for biasing said locking stack elements in contacting relation, said housing and sleeve and plug members having bores formed therein in radially aligned relation to receive the elements of the locking stack assembly, and an auxiliary chamber formed in the sleeve member and adapted to receive a change wafer, characterised in that a correct combination key positions the interfaces of said elements of the locking stack at points coincident with shear surfaces between said housing and sleeve and plug members to release both shear surfaces in each instance of normal lock operation by said correct combination key, in that the sle
  • a key adapted for use with the above lock, comprising a generally flat elongated blade portion receivable within the keyway, the blade portion having a lower longitudinally extending and generally straight edge, a bow portion extending from the blade portion and adapted to be grasped to operate said lock, and a stop shoulder arranged to limit insertion of said key into the keyway, characterised by a slot extending into the bow portion in adjacent and offset parallel relation with the lower straight edge of the blade portion, a projection member received with the slot and permanently connected to said key, the projection member extending longitudinally within the plane of the blade portion of said key and being operatively connected to said key for longitudinally reciprocating motion within the plane of the blade portion, and moving means extending from the projection member to be grasped for moving said projection member with longitudinally reciprocating motion, longitudinal movement of said projection member enabling movement of the sleeve member to its combination changing position.
  • two change wafers are position within and continually carried by one of the auxiliary chambers called change wafer chambers.
  • the sleeve member is operatively connected for selective positioning in a combination changing position.
  • the change wafer members are positioned in a radial align- . ment with the bores extending through the plug member and the housing member.
  • at least one change wafer in the change wafer chamber is transferred into the locking stack assembly and a corresponding number of change wafers previously in the locking stack assembly is transferred into the change wafer chamber.
  • the interfaces between at least some of the elements of the locking stack assembly are positioned at different radial depths, thereby resulting in change of the lock combination when the sleeve member is rotated out of the combination changing position into its normal lock operating position.
  • the length relationship of the change wafers and locking pins is such that the overall combined length of the maximum number of change wafers transposable into the locking stack assembly is at least one standard key biting depth interval less than the length of the locking pin.
  • One of the elements of the locking stack assembly may comprise magnetic material to which the other elements of the locking stack assembly are attracted.
  • the magnetic attraction tends to hold the elements of the locking stack together in contacting relation as the key is inserted into the keyway. By holding the elements together, the locking stack elements do not become separated but return to their proper contacting relationship at the shear surfaces for proper lock operation.
  • the lock 40 includes a housing member 41 having a hollow interior opening 42 for receiving a sleeve member 43.
  • the sleeve member 43 is generally of hollow tubular construction and includes a hollow interior 44 for receiving a barrel portion 45 of a plug member 46.
  • the plug member 46 is mounted in the lock 40 for rotational movement relative to the housing 41, and the sleeve member 43 is mounted for both rotational and axial movement relative to the housing and plug members.
  • the shear abutting contact surfaces between the housing member at the interior opening 42 define an outer shear surface of the lock.
  • the abutting contact surfaces between the barrel portion 45 of the plug member and the sleeve member 43 at the interior opening 44 define an inner shear surface of the lock.
  • a keyway 47 is formed axially through the plug member 46 and receives the blade portion 48 of a conventional key 49 having the conventional bitting depths 50 cut in the blade portion 48, as is shown in Figure 21.
  • Elements of a locking stack assembly 51 are received within bores radially extending from the keyway 47 into an encasement portion 52 of the housing member 41.
  • the bores into which the elements of the locking stack assemblies 51 are received are defined by tumbler pinways 53 extending radially through the barrel portion 45 of the plug member, by locking pin chambers 54 extending radially through the sleeve member, and by driver pinways 55 extending radially through the encasement portion 52 of the housing member.
  • the tumbler pinways 53, locking pin chambers 54 and driver pinways 55 are positioned in the members 41, 43 and 46 in radially aligned relationship when the lock is in the locking position.
  • each locking stack assembly includes a tumbler pin 56, a locking pin 57, a driver pin 58, a change wafer 59 and a spring 60 or other means for biasing the elements of the locking stack assembly in radially inward and contacting relationship.
  • bitting depths 50 of the blade portion 48 contact the tumbler pins 56 of each locking stack assembly.
  • the elements of the locking stack assembly are forced radially inward by the bias force of the springs 60.
  • the elements of each locking stack assembly are radially positioned in accordance with the depths of the bittings 50 cut in the key.
  • a proper combination key positions the contacting interfaces of the locking stack elements in a coincidental relation with the inner and outer shear surfaces as the key is rotated. Positioned in this manner, the elements of the locking stack assembly allow the plug member to rotate with respect to the sleeve and housing members by operatively releasing or not blocking the inner shear surface.
  • the outer shear surface is released or not blocked by the elements of the locking stack assembly.
  • means interconnecting the plug, housing and sleeve members move the sleeve member axially with respect to the housing member, and this axial movement releases the outer shear surface as is generally illustrated in Figure 22, to obtain normal lock operation.
  • the sleeve member 43 also includes a plurality of auxiliary chambers 61 also called change wafer chambers 61 extending radially therethrough. Each change wafer chamber 61 is displaced circumferentially and axially with respect to a corresponding locking pin chamber 54. Each of the change wafer chambers contains and carries at least one, but preferably two or more, change wafer elements 59.
  • the lock 40 includes means for allowing movement of the sleeve member to a combination changing position which is axially and rotationally displaced from its normal lock operating position. In the combination changing position, the change wafer chambers 61 are positioned in radial alignment with the driver pinways 55.
  • At least one of the change wafers 59 previously contained within one change wafer chamber 61 is transferred into the locking stack assembly 51 and at least one change wafer previously within the locking stack assembly is transferred into the change wafer chamber 61.
  • the change wafer is transferred into the locking stack assembly at a different position relative to the locking stack elements than the position occupied by the previous change wafer which has been removed from the locking stack assembly. As a result, the relative position of the locking pin in the locking stack assembly is shifted and the key combination of the lock has been changed.
  • the term "axial” or a formative thereof refers to a reference axis around which the plug member and sleeve member rotate.
  • the term “radial” refers to a reference perpendicular with respect to the axial reference.
  • the term “longitudinal” refers to a direction generally parallel to the axial reference.
  • the term “transverse” refers to a reference crosswise to a longitudinal reference.
  • the terms “front” or “forward” or other similar terms refer to a portion of the lock towards the end in which the key is inserted, as is shown in Figure 2.
  • the term “rear” or another similar term refers to the axial and longitudinal portion of the lock opposite to a forward position.
  • the terms “up” and “down” or other similar terms are relative terms and are used in relation to the lock as shown in the drawing.
  • the housing member 41 includes a main cylindrical portion 71 from which the encasement portion 52 extends.
  • the encasement portion 52 is generally of solid rectangular box- like configuration and extends radially outward and up from the cylindrical portion 71.
  • the driver pinways 55 extend radially in parallel relation through the encasement portion and into the interior opening 42.
  • the driver pinways are axially spaced from one another at equal intervals.
  • the radially outward terminal ends of the driver pinways are terminated by a cap member 72 attached to the encasement portion 52.
  • the elements of the locking stack assemblies 51 are inserted into the lock through the open outer ends of the driver pinways before the cap 72 is attached.
  • the driver pinways, the locking pin chambers, change wafer chambers and tumbler pinways are preferably cylindrical in cross section, of uniform diameter, and slightly greater in diameter than the diameter of the locking stack elements received therein.
  • the interior opening 42 of the housing member is generally defined by an inner cylindrical surface 73 which extends axially through the cylindrical portion 71 of the housing member.
  • the inner cylindrical surface 73 defines in part the outer shear surface of the lock.
  • a forward edge 74 of the cylindrical portion 71 extends outward from the inner cylindrical surface 73 and lies in a plane essentially perpendicular with respect to the axial reference.
  • a rear edge generally referenced 75 of the cylindrical portion 71 includes a planar portion 76, a portion defining a locking recess 77 and another portion defining a change recess .78, as is also shown in Figures 28 to 30.
  • the planar portion 76 extends outward from the inner surface 73 and lies in a plane essentially perpendicular to the axial reference.
  • the locking recess portion 77 extends longitudinally forward from the planar portion 76 by a predetermined amount.
  • the locking recess 77 is generally of a rectangular notch form ( Figures 17-18) and extends radially through the cylindrical portion 71 of the housing member.
  • the change recess 78 ( Figures 13-18) extends longitudinally forward of the planar portion 76 by a distance less than the forwardmost longitudinal extension of the locking recess 77.
  • the change recess 78 is circumferentially displaced in next adjoining relationship to the locking recess 77.
  • the change recess is also generally of rectangular notch configuration and extends radially through the cylindrical portion 71.
  • the sleeve member 43 includes an outer surface 80 of essentially cylindrical and axially extending shape.
  • the diameter of the outer surface 80 is slightly less than the diameter of the inner surface 73 of the housing member, thereby allowing the sleeve member to be received in a concentric and closely fitting relationship within the interior opening of the housing member.
  • the fitting relationship is such that both axial and rotational movement of the sleeve member relative to the housing member can be smoothly effected without unnecessary clearance space.
  • the interface between the outer surface 80 of the sleeve member and the inner surface 73 of the housing member defines the outer shear surface of the lock 40.
  • the inner opening 44 of the sleeve member is defined by an inner cylindrical surface 81 extending radially through the sleeve and in coaxial relationship with the outer surface 80.
  • the radial distance between the surfaces 80 and 81 defines the thickness of the sleeve member.
  • the radial thickness of the sleeve member is preferably slightly in excess of the length of a locking pin 57 (see Figures 26 and 27).
  • the actual thickness of the sleeve is determined by the diameter of locking pin and change wafer chambers and the radius of the outer cylindrical surface of the sleeve member.
  • the locking pin chambers 54 and change wafer chambers 61 extend radially completely through the sleeve member and intersect the inner and outer surfaces 81 and 80.
  • the locking pin chambers 54 extend radially parallel to one another and longitudinally in axial alignment.
  • the locking pin chambers are spaced at equal axial intervals equal to the intervals at which the driver pinways 55 are positioned.
  • the change wafer chambers also extend radially parallel to one another and longitudinally in axial alignment at intervals equal to the axial intervals of the driver pinways.
  • Each change wafer chamber 71 is circumferentially and axially spaced with respect to a corresponding locking pin chamber ( Figures 13-18).
  • Flattened surfaces 82 and 83 extend longitudinally through the intersections of the chambers 54 and 61 with the outer surface 80 of the sleeve member.
  • the flattened surfaces 82 and 83 are of essentially the same transverse width as the diameter of the change wafer and locking pin chambers.
  • a front edge generally referenced 84 of the sleeve member is defined by a planar portion 85 and a sleeve actuating notch portion 86, also shown in Figures 13-18.
  • the planar portion 85 extends between surfaces 80 and 81 and lies in a plane essentially perpendicular with respect to the axial reference.
  • the sleeve actuating notch portion 86 includes a flat rearwardmost portion 87 and two oppositely spaced transverse camming surface portions 88 and 89, referenced only in Figure 15.
  • the camming surface portions 88 and 89 extend convergently from the planar portion 85 toward the rearward portion 87.
  • the sleeve actuating notch 86 is essentially circumferentially centered with respect to an axial reference through the centers of the locking pin chambers 54.
  • a rear edge generally referenced 90 of the sleeve member is defined by a planar portion 91 and a sleeve restoring projection 92, also shown in Figures 13-18.
  • the planar portion 91 extends between surfaces 80 and 81 in a plane perpendicular to the axial reference.
  • the sleeve restoring projection 92 extends rearward of the planar portion 91 and includes a rearwardmost flat surface 92 and two transversely opposite spaced camming surfaces 94 and 95 referenced only in Figure 15. The camming surfaces 94 and 95 angle convergently from the planar surface 91 to the projection surface 93.
  • the sleeve restoring projection 92 is essentially circumferentially centered with respect to an axial reference through the locking pin chambers 54.
  • the sleeve member 43 also includes an offset tab portion 96 positioned essentially diametrically opposite the sleeve restoring projection 92, as shown best in Figure 3.
  • the tab portion 96 has a thickness which extends radially outward from the outer surface 80 ( Figure 19).
  • the radial inner surface of the tab portion 96 is approximately coincidental with the outer surface 80 of the sleeve member.
  • the tab portion 96 also extends rearward of the planar portion 91 of the rear edge of the sleeve ( Figures 13-18).
  • the tab 96 includes a rearwardmost flat surface 97 and two transversely opposite camming surfaces 98 and 99 angling divergently outward from the flat surface 97 toward the edge portion 91, referenced only in Figure 14.
  • the plug member 46 is formed by the barrel portion 45 and a flange portion 100 positioned forward of the barrel portion 45.
  • the exterior surface 101 of the barrel portion 45 is essentially of axially extending cylindrical shape.
  • the diameter of the exterior surface is slightly less than the diameter of the inner surface 81 of the sleeve member, such that a close fitting relationship is achieved to allow smooth movement of the barrel portion within the interior opening of the sleeve without unnecessary clearance space.
  • the interface between the outer surface 101 of the barrel portion and the inner surface 81 of the sleeve member defines the inner shear surface of the lock.
  • the flange portion 100 extends radially outward from the barrel portion 45 at the front end of the plug member.
  • the flange portion defines a planar shoulder surface 102 facing rearwardly of the flange and extending in a plane essentially perpendicular with respect to an axial reference.
  • the shoulder surface 102 is adapted to contact the forward edge 74 of the housing member 41 ( Figure 19) and to maintain the plug member in a stationary axial position with respect to the housing member as the plug member is rotated relative to the housing member.
  • the keyway 47 extends axially through the plug member from a forward face 103 of the flange 100 to a rear end 104 of the barrel portion 45.
  • the rear end 104 is defined by a flat surface which extends in a plane perpendicular with respect to an axial reference. As shown in Figures 2, 3, 13 and 19 to 21, a change opening 109 is formed radially outward through the flange 100 from the bottom of the keyway 47. The change opening 109 is important in the combination changing operation, as will be described.
  • the tumbler pinways 53 extend radially in parallel relation with the keyway 47 ( Figure 4) through the barrel portion and intersect the upper outer surface 101.
  • the tumbler pinways 53 are positioned in axial alignment along the plug member and are positioned at axial intervals along the plug member equal to the intervals between corresponding driver pinways 55 and locking pin chambers 54.
  • the driver and tumbler pinways are positioned in circumferential alignment when the shoulder portion 102 contacts the forward edge 74 of the housing member. Therefore, each of the driver pinways 55 is positioned essentially at an equal axial distance from the forward edge 74 of the housing member as a corresponding tumbler pinway 53 is axially positioned from the shoulder surface 102 of the flange 100.
  • the outer surface 101 of the plug member includes a longitudinally extending flat portion 105 ( Figures 28 to 30).
  • the flat portion 105 has transverse width equal to the diameter of the cylindrical tumbler pinways 53 and extends in intersecting relation with the aligned pinways 53.
  • the longitudinal positions of the tumbler pinways are such that each pinway 53 is in parallel alignment with a bitting depth 50 formed on the upper blade portion 48 of a fully inserted key.
  • a sleeve actuating pin member 106 extends radially outward from the flattened surface 105 at a position longitudinally adjacent to the shoulder surface 102.
  • the pin member 106 is centered with the axially aligned centers of the tumbler pinways 53.
  • the pin member 106 is preferably made of hardened steel to deflect drilling through the flange portion of the plug member and along the shear surface of the lock in an attempt to force open the lock.
  • a slot 107 extends transversely of the barrel portion 45 at the rear end 104 of the plug member. The slot 107 is adapted to receive a forward end portion of a tail piece member 108.
  • a tail piece retainer 110 is attached to the rear end 104 of the plug member 46.
  • the tail piece retainer 110 holds the plug member, tail piece, sleeve member and housing member in assembled relationship.
  • the tail piece member operates a conventional bolt or latch, not shown.
  • a slot 111 in the tail piece retainer 110 receives the tail piece member 108 and holds the tail piece member in the slot 107.
  • the tail piece retainer 110 is attached to the end 104 of the plug by screws 112 threaded into threaded bores 113.
  • a lower portion 114 of the slot 111 is in alignment with the keyway 47.
  • the tail piece retainer 110 includes a forward facing shoulder surface 115 extending essentially radially outward from the barrel portion of the plug member in a plane perpendicular with respect to the axial reference.
  • the shoulder surface 115 contacts the rear edge portion 76 of the housing member 41 to hold the plug, sleeve and housing members in assembled relationship.
  • the tail piece retainer 110 rotates with the plug member and the surface 115 prevents axial movement of the plug member with respect to the housing member while allowing rotational movement.
  • the axial distance between the shoulder surface 102 of the flange and the shoulder surface 115 of the tail piece retainer is slightly greater than the axial distance between the front and rear edges 74 and 75 of the housing member, thereby allowing smooth rotational movement while preventing relative axial movement of the plug member relative to the housing member.
  • a sleeve restoring tab 116 projects longitudinally forward from the shoulder surface 115 of the tail piece retainer 110, as is also shown in Figures 13-19.
  • the tail piece retainer 110 is attached to the plug member such that the sleeve restoring tab 116 is an axial alignment with a center line through the tumbler pinways 53 and sleeve actuating pin 106.
  • the sleeve restoring tab 116 is positioned at a radial distance equal to the radial distance of the sleeve member from the center axial reference through the plug member.
  • the thickness of the sleeve restoring tab is no greater than the thickness of the sleeve member.
  • the sleeve restoring tab 116 includes a forward flat surface 117 and two oppositely spaced camming surfaces 118 and 119 converging from the shoulder surface 115 to the forward surface 117, as referenced only in Figure 14.
  • a sleeve rotating notch 120 is formed radially inward of the outer circumferential edge of the tail piece retainer 110 and rearward of the shoulder surface 115.
  • the radial inward depth of the notch 120 extends inward to the outer surface 80 of the sleeve member.
  • the notch 120 includes two circumferentially oppositely spaced camming surfaces 121 and 122, referenced only in Figure 13, which converge rearwardly from the shoulder surface 115 of the tail piece retainer.
  • the notch 120 is located in a predetermined circumferential position on the tail piece retainer to receive a portion of the offset tab portion 96 of the sleeve member when the sleeve member is in or is being rotated to and from the combination changing position ( Figures 16-18).
  • Each of the locking stack assembly elements 56 to 59 is preferably cylindrical in cross-section.
  • the diameter of the each element is slightly less than the diameter of the bores formed radially through the plug, sleeve and housing members, thereby allowing radial movement of the locking stack elements without binding or the like.
  • the axial reference and length dimensions of the locking stack assembly elements extend radially with respect to the lock.
  • the flat interfacing end surfaces of the locking stack elements which abut and contact the flat interfacing end surfaces of the next radially adjacent, locking stack elements are all essentially perpendicular with respect to an axis through each cylindrically shaped element.
  • Chamfered edges 123 are provided between the outer cylindrical surfaces and the interfaces. The purpose of the chamfered edges 123 is to compensate for wear, slight variations in the correct key bitting depths and accumulated manufacturing tolerances in lengths of locking stack elements during lock operation.
  • the length of the driver pins 58 and the tumbler pins 56 may vary in a desired manner.
  • the length of each of the change wafers 59, both within the locking stack assembly 51 and within the change wafer chambers 61 is uniform.
  • the length of the change wafers is equal to an integral multiple of the standard depth interval to which bitting depths are formed in the key.
  • the length of each locking pin 57 is the same and is not greater than radial thickness of the sleeve member 43. Further, the length of each locking pin 57 is an integral number of lengths of a change wafer 59.
  • the length of the locking pins 57 may be somewhat less than the radial thickness of the sleeve member 43.
  • the point where the outside cylindrical surface 101 of the barrel member 45 intersects the flat surface 105 acts as a cam to move the locking pins slightly upward.
  • the slight upward movement, shown in Figure 25, positions the interface or abutting surface between the locking pin 57 and change wafer 59 coincidentally with the outer shear surface thereby allowing release of the outer shear surface.
  • the maximum number of change wafers positioned continually in each change wafer chamber is such that the combined length of the change wafers in the change wafer chamber is equal to the length of a locking pin.
  • the maximum number of change wafers transposable from the change wafer chamber into the locking stack assembly is less than the total number continually received in the change wafer chamber. Consequently, the total combined length of the transposed change wafers is less than the total length of the locking pin, by at least one bitting depth interval.
  • the innermost radial ends 124 of the tumbler pins 56 are rounded or otherwise formed in a suitable manner to contact and seat against the bitting depths 50 formed in the blade portion 48 of a key 49 when fully inserted in the keyway.
  • Shoulder portions 133 and 134 of the key extend transversely outward from the blade portion 48 on opposite sides and shoulder 133 contacts the outer surface 103 of the flange portion 100 of the plug, thereby limiting- the maximum depth to which the key 49 can be longitudinally inserted into the keyway.
  • a bow portion 135 of the key extends from the blade portion to allow the key to be grasped by the fingers of the user.
  • each locking stack assembly is essentially the same as shown in Figures 20 and 21. Uniform locking stack lengths make the lock more difficult to pick since release depths of each locking stack assembly are more difficult to perceive by probing or the like.
  • At least one of the elements of each locking stack assembly comprises permanent magnetic material or material capable of being magnetized as permanent magnetic material.
  • the other elements of the locking stack assembly are formed of material attracted to the permanent magnetic material.
  • the driver pins are formed of the permanent magnetic material or a permalloy such as Alnico because such magnetic material cannot be machined to maintain close length tolerances, as is necessary for the other elements of the locking stack assembly.
  • the remaining elements of the locking stack except the springs are made of a free machining magnetic stainless steel alloy which is attracted by the magnetic flux of the magnetic locking stack element.
  • the purpose of the permanent magnetic element and other elements is to prevent the locking stack elements from separating at the abutting end interface surfaces from one another, except during proper operation of the lock. Slight separation can occur because the locking stack elements bounce up and down over the serrations between bitting depths as the key is inserted and withdrawn.
  • the locking stack elements may hang up and not fully seat on the abutting end surfaces of one another or the tumbler pins may not fully seat on the bitting depths of the key bit.
  • Magnetic attraction insures that the elements of the locking stack assembly are maintained in abutting relationship until the shear surfaces are released by proper lock operation.
  • the magnetic element also enhances the resistance to picking because it is more difficult to separate the elements of the locking stack assembly when they are attracted to one another. In some circumstances, picking a lock can be achieved by probing each locking stack assembly individually while applying rotating torque to the plug to release the locking stack assemblies one at a time. The magnetic element reduces the susceptibility of the lock to this type of picking.
  • All of the locking stack elements of the lock 40 are made of suitable metallic materials, as is apparent to one skilled in the art.
  • the sleeve member 83 is inserted coaxially intermediate the barrel portion 45 of the plug member and the inner cylindrical surface 73 of the housing member.
  • the plug member 46 is inserted from the front edge 74 of the housing member into the interior opening 42.
  • the rearward facing shoulder 102 of the flange portion 100 abuts and contacts the forward edge 74 of the cylindrical portion 71 of the housing member.
  • the forward end of the tail piece member 108 is inserted into the slot 107.
  • the tail piece retainer 108 extends through the slot 111 in the tail piece retainer member 110, and the tail piece retainer is attached to the rear end 104 of the barrel portion of the plug by the screws 112.
  • a proper combination key is inserted in the keyway 47 and the tumbler pins are inserted from the driver pinways 55 into the tumbler pinways 53 of the plug member.
  • the sleeve member is next positioned in the combination changing position, wherein the change wafer chambers are aligned with the driver pinways, and two change wafers 59 are inserted into each of the change wafer chambers 61.
  • the sleeve member is moved to a position wherein the locking pin chambers are aligned with the driver pinways and the remainder of the locking stack elements are inserted.
  • the locking stack assemblies are maintained in position by attaching the cap member 72 over the outer end of the encasement portion 52 of the housing member.
  • the offset tab 96 is received within the locking recess 77 and the forward edge portion 85 is in abutting contact with the shoulder 102 of the flange portion of the plug.
  • the sleeve actuating notch 86 surrounds and receives therein the sleeve actuating pin 106.
  • the radial outward extent of the opening 109 formed radially outward through the flange 100 from the keyway 47 is sufficient to expose an amount of the planar edge portion 85 of the front edge 84 of the sleeve member ( Figures 2 and 19). Other relationships are implicit from the description of structure and operation.
  • Figure 5 illustrates the condition of a lock with an improper key inserted.
  • the locking stack elements have been biased upward or radially outward by the bitting depth 50 of the key.
  • the abutting surface between the locking pin 57 and the change wafer 59 coincides with the inner shear surface. Therefore, the inner shear surface is released and slight rotation of the plug is possible as is shown in Figure 6.
  • the outer shear surface is not released since the driver pin 58 extends through the outer shear surface.
  • the plug member is rotated slightly until the sleeve actuating pin 106 contacts the transverse camming surface 88 ( Figure 15) of the sleeve actuating notch 86. At this point, no further rotation is possible because the outer shear surface is blocked. The blocked outer shear surface prevents the rearward axial movement of the sleeve member; and therefore the lock remains in the locked condition.
  • the sleeve restoring tab 116 moves out of rotational alignment with the sleeve restoring projection 92 to thereby allow axial movement of the sleeve member. It should be further noted that the forward edge of the offset tab portion 96 of the sleeve does not move rearward to a position in which the tab 96 moves completely out of the locking recess 77. Each time the plug is returned to its home position, the sleeve restoring tab 116 contacts the sleeve restoring projection 92 and moves the sleeve member to its axially forward position.
  • the locking recess 77 and tab 96 form one means for preventing rotational movement of the sleeve member relative to the housing member while allowing axial movement of the sleeve member relative to both the housing and plug members.
  • the flange shoulder surface 102 and the surface 115 of the tail piece retainer 110 form means for allowing rotational movement of the plug member relative to the housing member while preventing axial movement of the plug member relative to the housing member.
  • the sleeve member is shifted from its first or forwardmost axial position to a second or intermediate axial position by means of the sleeve actuating pin 106 and the sleeve actuating notch 86.
  • the intermediate axial position defines a normal lock operating postion of the sleeve member.
  • the home position of the plug member defines its first rotational position, and the position at which the sleeve member is shifted to the second axial position is a second rotational position of the plug member.
  • the second rotational position is illustrated in Figures 22 and 23.
  • the sleeve restoring projection 92 and the sleeve restoring tab 116 form one example of means for shifting the sleeve member axially from its second axial position to its first axial position.
  • Changing the combination of the lock proceeds by inserting a proper combination set key, releasing both interfaces and rotating the plug member to a predetermined position shown in Figures 7, 15 and 26, which defines a third rotational position of the plug member.
  • the offset tab 96 is aligned with the sleeve rotating notch 120 in the tail piece retainer 110.
  • a projection member 145 is manually inserted into the change opening 109 to contact the forward edge portion 85 of the sleeve member 43 and move the sleeve member to a rearwardmost axial or third axial position ( Figure 16).
  • the plug member is rotated back from its third rotational position to its first rotational position shown in Figure 8, and the sleeve rotating notch 120 carries the offset tab 96 circumferentially in the change recess 78 ( Figure 17). Rotation of the sleeve thereby occurs, placing the change wafer chambers 61 in radially aligned condition with the tumbler and driver pinways as is shown in Figure 17.
  • the two change wafers in the change wafer chamber are inserted into the locking stack elements between the tumbler pin and the change wafer in the locking stack assembly, as is shown in Figures 8, 9 and 27.
  • the locking pin positioned in the locking pin chamber has been temporarily rotated out of alignment with the driver and tumbler pinways.
  • the new combination key has bitting depths cut to a new combination, the new combination being defined by at least one of the bitting depths on the new key being a depth different from the corresponding bitting depth of the first key by an amount equal to the length of at least one change wafer. Insertion of the new or second key is illustrated in Figure 9.
  • the maximum total combined length of the maximum number of change wafers transposable at a new relative position in the locking stack assembly is the length of one bitting depth interval less than the total length of a locking pin.
  • the new combination or second key is thereafter rotated counterclockwise past the combination changing position as is shown in Figure 10.
  • Rotating the plug counterclockwise causes the sleeve rotating notch 120 to carry the tab 96 back to an aligned positioned with the locking recess 77 ( Figure 18).
  • the camming surfaces 122 ( Figure 12) and 99 ( Figure 14) longitudinally force the tab 96 into the locking recess 77.
  • the key and plug are rotated back to the home position as is shown in Figure 11 and the sleeve restoring tab 116 and sleeve restoring projection 92 force the sleeve member to its axial forward or first position.
  • normal lock operation occurs with the new key in the same manner as has previously occurred with the old key. Removal of the new key from the lock results in a condition illustrated in Figure 12.
  • the sleeve member is moved to a rearwardmost or third axial position, as well as rotated. Rotation occurs from the first or normal locking condition position as is defined when the tab 96 is within the locking recess 77, to a second rotational position where the tab is maximally circumferentially displaced in the change recess 78 ( Figure 17 and Figures 15 and 18).
  • the change recess 78 and the tab 96 comprise one form of means allowing rotation of the sleeve member to a combination changing position.
  • the sleeve rotating notch 120 and the tab 96 form one means for operatively rotating the sleeve member from its first rotational position to its second rotational position, and also for rotating the sleeve member back from the second to the first rotational position.
  • FIG. 20 is one illustration of such a technique wherein more than one change wafer 59 and locking pin 57 have been employed in some of the locking stack assemblies. It should be noted that combination changes for master keys can be effected without affecting pass key depths, and vice versa, in the same manner as combination changes for pass keys.
  • a conventional pass key 49 illustrated in Figure 21 has previously been described in normal operation of the lock 40. It is noted that the pass key 49 includes two transversely spaced shoulder portions 133 and 134 which extend outwardly from the blade portion 48 of the key.
  • the shoulder portion 133 limits the maximum amount of insertion of the key into the keyway 47 upon contacting the front surface 103 of the flange 100.
  • the lower shoulder portion 134 covers the opening 109 in the bottom portion of the keyway.
  • the lower shoulder portion of a conventional pass key prevents exposure of the forward edge of the sleeve 43 through the opening 109 and thus prevents unauthorized change.
  • One form of a set key for changing the combination of the lock 40 requires removal of the lower shoulder portion 134 of a conventional pass key.
  • the lower longitudinal edge of the blade portion 48 extends into the bow portion 135 of the key.
  • a projection member such as a stiff wire or the like can be manually inserted below the blade portion 48 to contact the forward planar edge portion 85 of the sleeve to shift it axially to the rearwardmost axial position preparatory to rotating the sleeve to the combination changing position.
  • FIG. 31 and 32 A preferred form of another type of set key 140 is illustrated in Figures 31 and 32.
  • the key 140 includes an elongated blade portion 141 attached to a bow portion 142.
  • An upper shoulder 143 extends transversely of the blade portion to limit axial insertion of the key in the lock.
  • a projection member 145 is positioned permanently within a slot 144 formed in the bow portion 142.
  • the slot 144 extends in next adjacent and offset parallel relation with the lower straight edge of the blade portion.
  • the projection member 145 is attached to a finger knob member 146 on each transverse side of the bow portion.
  • a rounded boss portion 147 formed on the end of the projection member positioned toward the bow portion extends transversely out of an enlarged slot 148, and the finger knob members 146 are connected to the outer transverse ends of the boss portion, preferably by rivets 150 extending transversely through an opening 151 in the boss portion 147.
  • the finger knob members 146, the boss portion 147 and the enlarged slot 148 define one form of means for permanently affixing the projection member 145 to the key 140. The maximum forward and rearward projection of the projection member is limited by contact of the boss portion with the ends of the enlarged slot 148.
  • the finger knob members are grasped and the projection member 145 is moved toward the rear of the lock.
  • the leading edge 149 of the projection member 145 contacts the forward edge portion 85 of the sleeve member, and further movement of the projection member forces the sleeve member rearwardly ( Figure 16).
  • the sleeve can be rotated to the combination changing position and the combination changing process can proceed as previously described.
  • the projection member 145 can be withdrawn from the opening 109 by moving the finger knob members 146 away from the flange of the lock. It is apparent that the projection member 145 is therefore permanently connected to the key in a manner whereby it may be moved in longitudinally reciprocating motion parallel to and in next adjoining relation with the bit portion of the key, to be inserted into and removed from the opening 109.
  • the lock 40 of the present invention allows relatively rapid and selective change of the key combination without removing the lock from its installed position or replacing parts. Furthermore, more pick-resistant lock action has been secured because of the release of the inner shear surface prior to release of the outer shear surface. Release of the inner shear surface prevents further probing or the like in an attempt to pick or release the outer shear surface.
  • the construction and arrangement of elements within the lock is such that the overall dimensions of the lock can be used in a wide variety of applications.
  • the number of key combinations to which the lock may be changed allow rapid key combination change for operation by different pass keys as well as a number of acceptable key combination changes for master key operation. Ideally, master key bitting depths are cut to lesser depths than pass key bitting depths.
  • the configuration and arrangement of the present lock makes it applicable for use in cylindrical locks, tubular deadlocks, padlocks, mortise and rim cylinders and a variety of other situations.
  • the pin tumbler lock described herein allows rapid and selective change of the lock operating key combination without removing the lock from its installed position and without disassembling or replacing any of the parts of the lock.
  • the lock can be used with conventional keys having bitting depths cut therein in a conventional manner, for use as pass keys and as master keys.
  • the locking combination can be selectively changed for operation by different pass keys while maintaining the lock in condition for operation by at least one master key or a grand master key.
  • the overall outside dimensions of the lock are such as to permit the lock in a wide variety of different applications.
  • the lock has increased resistance to picking or other forms of unauthorised use, and significantly reduces the potential for separation of the locking stack elements upon insertion of a key into the lock.

Landscapes

  • Lock And Its Accessories (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Buckles (AREA)

Claims (11)

1. Schloß (40) mit Stiftzuhaltung und Kodierungsänderung, mit einem Gehäuseteil (41), einem im Inneren des Gehäuseteiles (41) beweglich aufgenommenen Hülsenteil (43), einem im Inneren des Hülsenteiles (43) drehbar aufgenommenen Zylinderteil (46), das einen darin gebildeten Schlüsselschlitz (47) zur Aufnahme eines Schlüssels (49) aufweist, einer Sperrgruppenanordnung (51), die Elemente einschließlich eines Treiberstiftes (58), eines Sperrstiftes (57), eines Wechselplättchens (59), eines Zuhaltestiftes (56) und Mittel (60) zum Vorspannen der Sperrgruppenelemente in gegenseitigem Kontakt, wobei die Gehäuse-, Hülsen-und Zylinderteile (41, 43, 46) darin gebildete, radial zueinander ausgerichtete Bohrungen (55, 54, 53) aufweisen, um die Elemente der Sperrgruppenanordnung (51) aufzunehmen, und mit einer im Hülsenteil (43) gebildeten und zur Aufnahme eines Wechselplättchens (59) eingerichteten Hilfskammer (61), dadurch geKennzeichnet, daß ein Schlüssel mit richtiger Kodierung die Zwischenflächen der Elemente der Sperrgruppe an Punkten, die mit den Grenzflächen zwischen Gehäuse-, Hülsen- und Zylinderteil (41, 43, 46) zusammenfallen, in Position bringt, um beide Grenzflächen bei jeder normalen Schloßbetätigung mit dem Schlüssel mit richtiger Kodierung freizugeben, daß das Hülsenteil (43) relativ zum Zylinder- und zum Gehäuseteil (46, 41) durch Betätigungsmittel (86, 106) und Rückstellmittel (92, 116) axial bewegbar angebracht ist, um das Hülsenteil (43) bei Drehen des Zylinderteiles (46) zur Positionierung der Bohrungen (55, 54, 53) in den Gehäuse-, Hülsen- und Zylinderteilen (41, 43, 46) in die und aus der radialen Ausrichtlage, während der Betätigung mit dem Schlüssel mit richtiger Kodierung, axial zu bewegen, daß mehr als eine Hilfskammer (61) vorgesehen und vollständig radial durch das Hülsenteil (43) hindurchgehend ausgebildet sind, wobei die Hilfskammern in axialer Richtung und in Umfangsrichtung in Abstand von den im Hülsenteil (43) gebildeten Bohrungen (54) angeordnet sind, daß wenigstens eines der Wechselplättchen (59) laufend innerhalb der Hilfskammern (61) im Hülsenteil (43) positioniert ist, und daß eine Änderungseinrichtung (109, 120, 96) zur Positionierung des Hülsenteiles (43) in einer Kodierungsänderungsposition vorgesehen ist, in der die Hilfskammern (61) zur Bohrung (55) im Gehäuseteil (41) radial ausgerichtet sind, um die Kodierung durch Verwendung der Hilfskammern (61) und des Wechselplättchens oder der -plättchen (59) darin zum Wechseln der Position des wenigstens einen Wechselplättchens (59) in der Sperrgruppenanordnung (51) zu ändern, um dadurch die relativen Kontaktpositionen der Elemente in der Sperrgruppenanordnung zu ändern, wobei die Änderungseinrichtung (109, 120, 96) das Hülsenteil (43) nach Beendigung der Kodierungsänderung aus der Kodierungsänderungsposition bewegt.
2. Schloß nach Anspruch 1, dadurch gekennzeichnet, daß das Hülsenteil (43) eine im wesentlichen gleichmäßige radiale Dicke aufweist, die im wesentlichen gleich der Länge des Sperrstiftes (57) der Sperrgruppenanordnung (51) ist, und eine Mehrzahl von Wechselplättchen (59) laufend in einer der Hilfskammern (61) angeordnet ist, wobei jedes Wechselplättchen (59) von derselben Dicke ist und die Gesamtlänge der Mehrzahl der Wechselplättchen (59) in einer der Hilfskammern (61) im wesentlichen gleich der radialen Dicke des Hülsenteiles (43) ist.
3. Schloß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß einer der Treiberstifte (58) oder der Sperrstifte (57) oder der Zuhaltestifte (56) der Sperrgruppenanordnung (51) permanentmagnetisches Material aufweist, andere Elemente der Sperrgruppenanordnung (51) und das oder jedes in einer der Hilfskammern (61) angeordnete Wechselplättchen (59) zum magnetischen Material hin angezogenes Material aufweist, und die Abschnitte des Gehäuseteiles (41), des Hülsenteiles (43) und des Zylinderteiles (46), die allgemein nahe der Kammer (61) und den Bohrungen (55, 54, 53) dieser Teile sind, aus vom magnetischen Material nicht angezogenem Material gebildet sind.
4. Schloß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Änderungseinrichtung eine Änderungsöffnung (109) aufweist, die sich vom Hülsenteil (43) durch das Zylinderteil (46) zu einer Außenfläche des Zylinderteiles (46) und einer Außenfläche des Schlosses erstreckt, wodurch ein Instrument durch die Änderungsöffnung (109) eingeführt werden kann, um das Hülsenteil (43) zu berühren, wobei das Instrument vorzugsweise in Form eines Vorsprunges (145) vorliegt, der von einem Schlüssel (140) derart getragen ist, daß er zur Änderungsöffnung (109) ausgerichtet ist, wenn der Schlüssel (140) in den Schlüsselschlitz (47) des Zylinderteiles (46) eingeführt wird.
5. Schloß nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß erste Verbindungsmittel (100, 71, 110) das Zylinder- und das Gehäuseteil (46, 41) wirkungsmäßig unter Ermöglichung einer Drehbewegung des Zylinderteiles (46) relativ zum Gehäuseteil (41) und unter Verhinderung einer wesentlichen Axialbewegung des Zylinderteiles (46) relativ zum Gehäuseteil (41) verbinden, weiche erste Verbindungsmittel (100, 71, 110) es dem Zylinderteil (46) ermöglichen, eine erste Drehlage und eine zweite, gegenüber der ersten Drehlage verdrehte Drehlage relativ zum Gehäuseteil (41) einzunehmen, daß die Bohrung (54) im Hülsenteil (43) in radialer Ausrichtung zur Bohrung (55) im Gehäuseteil (41) angeordnet ist, wenn das Hülsenteil (43) eine erste Axiallage einnimmt, und die Bohrung (53) im Zylinderteil (46) in radialer Ausrichtung zu den Bohrungen (55, 54) im Gehäuse- und im Hülsenteil (41, 43) angeordnet ist, wenn das Zylinderteil (46) die erste Drehlage und das Hülsenteil (43) eine erste Axiallage einnimmt, wobei die Enden der Sperrgruppenelemente (51) nach Einführen eines Schlüssels mit geeigneter Kodierung in den Schlüsselschlitz (47) und nach Positionierung des Zylinder- und des Hülsenteiles (46, 43) in der ersten Dreh- bzw. der ersten Axiallage im wesentlichen an den inneren und äußeren Grenzflächen des Schlosses vorliegen, wodurch die Betätigung des Schlosses durch Drehen des Zylinderteiles (46) aus seiner ersten Drehlage in seine zweite Drehlage ermöglicht ist, und daß zweite Verbindungsmittel (96, 77) das Hülsen- und das Gehäuseteil (43, 41) wirkungsmäßig unter Ermöglichung einer Axialbewegung des Hülsenteiles (43) aus der ersten Axiallage relativ zum Gehäuseteil (41) in eine zweite Axiallage verbinden, welche zweite Verbindungsmittel (96, 97) auch eine Drehung des Hülsenteiles (43) in den ersten und zweiten Axiallagen relativ zum Gehäuseteil (41) wirkungsmäßig hintanhalten, wobei die Betätigungsmittel (86, 106) das Hülsenteil (43) bei Drehung des Zylinderteiles (46) aus seiner ersten Drehlage in seine zweite Drehlage aus dessen erster Axiallage in dessen zweite Axiallage bewegen, und wobei die Rückstelmittel (92, 116) das Hülsenteil (43) bei Drehung des Zylinderteiles (46) aus seiner zweiten Drehlage in seine erste Drehlage aus dessen zweiter Axiallage in dessen erste Axiallage bewegen.
6. Schloß nach Anspruch 5, dadurch gekennzeichnet, daß das Zylinderteil (46) in eine dritte, gegenüber der ersten und der zweiten Drehlage versetzte Drehlage verdrehbar ist, wobei die zweiten Verbindungsmittel (96, 97) eine Axialbewegung des Hülsenteiles (43) in eine dritte, axial gegenüber der ersten oder der zweiten Axiallage verschobene Axiallage ermöglichen, und daß dritte Verbindungsmittel (96, 78) wirkungsmäßig den zweiten Verbindungsmitteln (96, 97) zugeordnet und wirkungsmäßig mit dem Gehäuse- und dem Hülsenteil (41, 43) unter Ermöglichung einer Drehung des Hülsenteiles (43) in eine zweite Drehlage, wenn das Hülsenteil (43) in seiner dritten Axiallage vorliegt, verbunden ist, wobei sich das Hülsenteil (43), wenn es gleichzeitig in seiner zweiten Dreh- und dritten Axiallage angeordnet ist, in seiner Kodierungsänderungsposition befindet.
7. Schloß nach Anspruch 4 und 6, dadurch gekennzeichnet, daß die Änderungsöffnung (109) eine Bewegung des Hülsenteiles (43) in seine dritte Axiallage ermöglicht, wenn sich das Zylinderteil (46) in seiner dritten Drehlage befindet, wobei das Hülsenteil (43) aus seiner ersten Drehlage in seine zweite Drehlage verdreht wird, wenn das Hülsenteil (43) seine dritte Axiallage einnimmt und das Zylinderteil (46) aus seiner dritten Drehlage in seine erste Drehlage gedreht wird.
8. Schloß nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die ersten Verbindungsmittel einen sich vom Zylinderteil (46) radial auswärts erstreckenden und eine Schulterfläche (102), die ein axiales Ende (74) des Gehäuseteiles (41) berührt, definierenden Flansch (100) aufweist und ein Halteglied (110) am Zylinderteil (46) befestigt ist und sich von diesem Zylinderteil (46) radial auswärts erstreckt, welches Halteglied (110) eine das andere axiale Ende (76) des Gehäuseteiles (41) berührende Schulter (115) definiert, und daß die zweiten Verbindungsmittel eine im Gehäuseteil (41) gebildete Arretierausnehmung (77) und eine versetzte Zunge (96) aufweist, die am Hülsenteil (43) angebracht ist und sich in die Arretierausnehmung (77) erstreckt, wenn sich das Hülsenteil (43) in den ersten und zweiten Axiallagen befindet.
9. Schloß nach Anspruch 5, dadurch gekennzeichnet, daß die Betätigungsmittel ein fest mit dem Zylinderteil (46) verbundenes und sich vom Zylinderteil (46) radial auswärts erstreckendes Betätigungsglied (106) und eine am Hülsenteil (43) zur Berührung des Betätigungsgliedes (106), wenn sich das Zylinder-und das Hülsenteil (46, 43) in der ersten Dreh- bzw. der ersten Axiallage befinden, gebildete Betätigungsstruktur (86) aufweisen, welche wenigstens eine Steuerfläche (88 oder 89) zur wirkungsmäßigen Bewegung des Hülsenteiles (43) in seine zweite Axiallage bei Kontakt mit dem Betätigungsglied (106), wenn das Zylinderteil (46) aus seiner ersten Drehlage in seine zweite Drehlage gedreht wird, aufweist, und daß die Rückstellmittel eine am Zylinderteil (46) angebrachte und mit ihm drehbare Rückstellzunge (116), welche Rückstellzunge (116) wenigstens eine Steuerfläche (118 oder 119) aufweist, und eine Rückstellstruktur (92) aufweist, die mit dem Hülsenteil (43) an einer Position verbunden ist, die diese Rückstellstruktur (92) in axiale Ausrichtung zur und in Kontakt mit der Rückstellzunge (116) bringt, wenn sich das Zylinderteil (46) und das Hülsenteil (43) in der ersten Dreh- bzw. der ersten Axiallage befinden, welche Rückstellstruktur (92) wenigstens eine Steuerfläche (94 oder 95) aufweist, die die Steuerfläche (118 oder 119) der Rückstellzunge (116) berühren kann, wenn sich das Hülsenteil (43) in der zweiten Axiallage befindet und das Zylinderteil (46) in seine erste Drehlage gedreht wird.
10. Schloß nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß eine Mehrzahl von Wechselplättchen (59) laufend in einer der Hilfskammern (61) angeordnet ist und die Sperrgruppenanordnung (51) wenigstens eine Gruppe von Wechselplättchen (59) aufweist, die um eines weniger als die Anzahl der Wechselplättchen (59) in der Hilfskammer (61) enthält, wobei die Längenrelation der Sperrstifte (57) und Wechselplättchen (59) derart ist, daß die Gesamtlänge der Maximalanzahl der von der Hilfskammer (61) in die Sperrgruppenanordnung (51) überführbaren Wechselplättchen (59) zusammen wenigstens um ein Schlüsselzahnungstiefen-Teilungsmaß geringer ist als die Länge des Sperrstiftes (57) der Sperrgruppenanordnung.
11. In einen Schlüsselschlitz eines Schlosses nach einem der Ansprüche 1 bis 10 einführbarer Schlüssel mit einem allgemein flachen, länglichen, im Schlüsselschlitz aufnehmbaren Bart (141) mit einer unteren, sich längserstreckenden und allgemein geraden Kante, einem Sich vom Bart (141) erstreckenden, zur Betätigung des Schlosses ergreifbaren Griff (142) und einer zur Begrenzung der Einführung des Schlüssels in den Schlüsselschlitz vorgesehenen Anschlagschulter (143), gekennzeichnet durch einen sich benachbart der unteren geraden Kante des Bartes (141) parallel dazu und ihr gegenüber versetzt in den Griff (135) erstreckenden Schlitz (144), in dem ein dauernd mit dem Schlüssel verbundener Vorsprung (145) aufgenommen ist, welcher Vorsprung (145) sich innherhalb der Ebene des Bartes (141) des Schlüssels längserstreckt und mit dem Schlüssel in Längsrichtung innerhalb der Ebene des Bartes (48) hin und her beweglich verbunden ist, und durch sich vom Vorsprung (145) erstreckende, zum Hin- und Herbewegen des Vorsprunges (145) in Längsrichtung ergreifbare Bewegungsmittel (146), wobei eine Längsbewegung des Vorsprunges (145) eine Bewegung des Hülsenteiles (43) in seine Kodierungsänderungsposition ermöglicht.
EP79301277A 1978-07-03 1979-07-02 Schlösser mit Stiftzuhaltungen Expired EP0006765B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79301277T ATE2348T1 (de) 1978-07-03 1979-07-02 Schloesser mit stiftzuhaltungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92176978A 1978-07-03 1978-07-03
US921769 1978-07-03

Publications (2)

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EP0006765A1 EP0006765A1 (de) 1980-01-09
EP0006765B1 true EP0006765B1 (de) 1983-01-26

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EP79301277A Expired EP0006765B1 (de) 1978-07-03 1979-07-02 Schlösser mit Stiftzuhaltungen

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EP (1) EP0006765B1 (de)
JP (1) JPS5513395A (de)
AT (1) ATE2348T1 (de)
AU (1) AU529461B2 (de)
CA (1) CA1125046A (de)
DE (1) DE2964603D1 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2022269285A1 (en) * 2021-06-25 2022-12-29 Avantis Hardware Ltd Lock apparatus, parts thereof and method of fitting a lock cylinder

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131771A (en) * 1980-03-19 1981-10-15 Hori Rotsuku Kogyo Kk Variable pin tumbler lock
US4712402A (en) * 1986-06-16 1987-12-15 Monahan Brian J Integrally and sequentially re-keyable lock apparatus and method
US4712401A (en) * 1986-07-02 1987-12-15 Monahan Brian J Randomly and integrally re-keyable lock apparatus and method
US4732023A (en) * 1986-08-15 1988-03-22 Shen Chao C Modifiable cylinder
FR2729699A1 (fr) * 1995-01-19 1996-07-26 Terride Jean Louis Mecanisme de surete programmable pour serrure, cle pour un tel mecanisme de surete et procede de reproduction d'une telle cle
US5752400A (en) * 1996-10-07 1998-05-19 Kim; Kwon W Universal lock and key
WO2014196729A1 (en) * 2013-06-05 2014-12-11 Na Ye Ryong Two way lock and locker including the same

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Publication number Priority date Publication date Assignee Title
US2113007A (en) * 1937-05-17 1938-04-05 Gunnard E Swanson Cylinder lock
US2326358A (en) * 1940-01-23 1943-08-10 Homer L Hull Tumbler type lock
US2427814A (en) * 1941-10-21 1947-09-23 Edward A Schachinger Combination changing lock
US3070987A (en) * 1959-05-27 1963-01-01 American Hardware Corp Locks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022269285A1 (en) * 2021-06-25 2022-12-29 Avantis Hardware Ltd Lock apparatus, parts thereof and method of fitting a lock cylinder

Also Published As

Publication number Publication date
JPS5513395A (en) 1980-01-30
AU529461B2 (en) 1983-06-09
AU4847679A (en) 1980-01-10
ATE2348T1 (de) 1983-02-15
EP0006765A1 (de) 1980-01-09
CA1125046A (en) 1982-06-08
DE2964603D1 (en) 1983-03-03

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