WO2016179631A1 - Serrure et clé pour cette dernière - Google Patents

Serrure et clé pour cette dernière Download PDF

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Publication number
WO2016179631A1
WO2016179631A1 PCT/AU2016/000153 AU2016000153W WO2016179631A1 WO 2016179631 A1 WO2016179631 A1 WO 2016179631A1 AU 2016000153 W AU2016000153 W AU 2016000153W WO 2016179631 A1 WO2016179631 A1 WO 2016179631A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
lock
barrel
arm
housing
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.)
Ceased
Application number
PCT/AU2016/000153
Other languages
English (en)
Inventor
George Stephen Ramsay
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.)
Individual
Original Assignee
Individual
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
Priority claimed from AU2015901753A external-priority patent/AU2015901753A0/en
Application filed by Individual filed Critical Individual
Publication of WO2016179631A1 publication Critical patent/WO2016179631A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
    • E05B29/0013—Cylinder locks and other locks with plate tumblers which are set by pushing the key in with rotating plate tumblers

Definitions

  • the present invention relates to an improved lock and key for use in the improved lock.
  • the present invention relates to pin tumbler lock and to a key for use in a pin tumbler lock.
  • the lock of the present mvention has enhanced security features compared to conventional locks,
  • Pin tumbler locks are widely used in Australia and in other countries. Pin tumbler locks typically have a cylinder assembly that includes a rotatable core or plug or barrel The cylinder assembly includes a housing into which the core or plug or barrel is positioned. In some locks, such as padlocks, the housing also forms the body of the lock.
  • the rotatable barrel and the housing have a series of bores formed therein.
  • the bores in the housing are in alignment with the respective bores in the barrel .
  • Each of me aligned bores carries a barrel pin and a housing pin.
  • the barrel pin and the housing pin contact each other at a shear point or a junction point Springs are used to bias the pins towards the barrel.
  • a key slot is formed in the barrel for the key entry. Insertion of a key having the correct notches or bits aligns the shear point of each set of the housing pins and barrel pins with die rotational part of the barrel in the housing.
  • insertion of the key allows the barrel to rotate in the housing and this allows the locking mechanism to taction.
  • the shear point between at least one set of housing pins and barrel pins moves so that it is located away from the turning diameter of the barrel litis prevents rotation of the barrel.
  • the shear point between at least one set of housing pins and barrel pins is not coincident with the turning diameter of the barrel, thereby prevemting rotation of the barrel.
  • Pin and tumbler locks may have a plurality of pins, with pin and tumbler locks frequently been provided with five or six sets of barrel and housing pins. However, other numbers of pins may be used. As the number of sets of the barrel and housing pins decreases* the number of possible key combinations that can be set also decreases, thereby reducing security of the lock. Lock manufacturers and locksmiths provide such locks as part of a locking product with two or more key s for the owner of the lock to secure their property , The locks can be supplied as individual units, deemed “keyed to differ" or in lots of two or more in which a single key will open two or more locks, deemed to be "keyed alike "
  • Lock manufacturers and locksmiths also build and produce a group of locks fa a customer with series of keys to accommodate the specific needs of the owner and this is normally referred to as a system or master key system.
  • a system or master key system can have a series of level s or groups of keys that can operate the mechanism of the various designated locks within the system. For example, in a unit complex having a number of different units occupied by different occupants, each occupant may have a key that only opens the lock to their unit. However, the superintendent of the unit complex may have a master key that opens all of the locks to each unit.
  • a system or master key system can normally be designed and manufactured to suit most types of locks mat the customer requests.
  • the cuts in the standard key (the valley) that will function the lock cylinder is termed the "bitting "
  • the depth variations of individual bittings in the key is normally about 9 or 10 incremental depths.
  • the depth of individual cuts in the key is designed to match the small precision parts or pin links that are incorporated into the lock system when it is assembled.
  • the possible combination of individual keys for a cottventional standard five pin cylinder lock is in excess of 25,000 and a 6 pin cylinder lock has more than 100,000 possible individual key combinations.
  • Australian patent number 666369 in the name of Master locksmiths Association of Australasia Limited relates to a key actuated pin and tumbler lock having enhanced security.
  • This lock includes a cylindrical core/barrel that is rotatable in a lock housing via a rotational path, a plurality of pin tumblers received in bores in the core/barrel and lock housing, each bore containing a set of pin tumblers comprising one core pin and one housing pin biased towards the core and having a pin junction therebetween and a key slot in the core.
  • the key is provided with suitable bits to enable the pin junctions to align with the rotational path of the core in the lock housing to permit the core to rotate within the housing.
  • the lock also comprises a retaining mechanism in the form of a spring that is biased to engage at least one of the pin tumblers and to resist mo vement of the engaged pin tumbler in either direction in its respective bore until released by insertion of a proper key.
  • a spring has a movable end that comes into contact with a cote pin or a housing pin. If a normal key is insetted, the spring remains in contact with the pin and the spring prevents the pin from moving. If a special key having a lateral wing is inserted into the key slot, the wing causes a ball to move and disengage the end of the spring with the pin. This allows the pins to move to the junction point which, in turn, allows the lock to be operated,
  • the present invention is directed to a pin and tumbler lock which provides for enhanced secority compared to a conventional pin in tumbler lock.
  • the present invention in one form, resides broadly in a lock cylinder having a barrel and a lock housing, the barrel having an arm mounted therein, the arm being biased into contact with the lock housing, the barrel having a key slot for receiving a key, the key including a projection for causing the arm to move out of contact with the lock housing to thereby enable rotation of the barrel in the lock housing,
  • the present invention provides a lock cylinder having a barrel and a lock housing* the barrel having an arm mounted therein, the arm being biased into contact with the lock housing, the arm being movable between a first position in which the arm is in contact with the lock housing and a second position in which the one end of the arm is spaced from the lock housing.
  • the "toek housing” may also be referred to as the "cylinder housing.”
  • the arm has one end that is biased into contact with the lock housing, the one end of the aim being movable such that it is withdrawn from contact with the lock housing.
  • the arm is biased outwardly relative to the barrel, the one end of the arm being biased into contact with the lock housing,
  • lock cy linder is used to refer to the combination of the barrel and the lock housing.
  • the lock cylinder does not need to be cylindrieal in shape. Rather, the term “lock cylmder” is a term of the art that refers to the barrel and the lock housing, In some embodiments, such as in padlocks, the lock housing will form part of the external surface of the lock.
  • the lock housing has a recess for receiving the one end of the arm, the barrel having a key slot for receiving a key, the key including a projection for causing the one end of the arm to move out of the recess in the lock housing to thereby enable rotation of the barrel in the lock housing.
  • the lock cylinder is of the pin and tumbler type.
  • the barrel and the lock housing are provided with aligned bores and that each bore contains a barrel pin and a housing pin, A shear point is located at the junction of the barrel pia and the housing pin in each set of pins.
  • the pins are biased towards the barrel, such as by use of springs .
  • the lock is operated by a key that includes bits that move the housing pin and the locking pin of each set such that the shear point is positioned at the outer diameter of the barrel.
  • the arm is pivotally mounted in the barrel about a pivot point.
  • the arm has the one end and a second end.
  • the key includes a surface that moves the secomd end of the arm to thereby cause the first end of the arm to move about the pivot point and to be withdrawn from contact with the barrel
  • the one end is withdrawn from the recess in the lock housing.
  • the arm may be biased such that the one end of the arm is biased into contact with the lock housing by use of a biasing spring,
  • a resilient biasing member such as a block of rubber or elastomer, may be used to bias the arm.
  • springs are suitably used to bias the arm into contact with the lock housing,
  • a plurality of arms may be provided, each arm betrig biased into contact with the lock housing.
  • the arm is of generally S-shape.
  • the biasing member is mounted between the pivot point of the arm and the one end of the area.
  • a slot is formed in the barrel and the arm is mottnted in the slot.
  • the arm may be mounted to a pivot pin extending through an opening in the arm.
  • the pivot pin may .be located in a bore in the barret
  • the pivot pin may be located in a bore that extends in a direction generally parall el to a longitudinal ax is of the barrel This bore suitably extends inwardly from a rear surface of the barrel
  • front of the barrel is used to denote the end of the barre l where the opening to the key slot can be seen and the term “rear of the barrel” is u sed to denote the end of the barrel that is positioned in the lock housing and not accessible fiora the outside of the lock.
  • the key slot is provided with an opening for receiving a key having a projection with a contact surface for contacting the arm to thereby cause the arm to move out of contact wi th the lock housing.
  • the key has a laterally extending projection mat comes into contact with the arm to thereby cause the arm to move out of contact with the lock housi ng.
  • the laterally extending projection may be in the form of a wing extending from a side of a shank of the key.
  • the contact surface of the key comes into contact with a drive member that, in turn, drives operation of the arm to drive the arm out of contact with the lock housing *
  • the barrel is further provided with one or more protection pins. These pins will be inserted into the barrel to protect the arm ironi compromise when a standard key is inserted into the lock barrel
  • the lock cylinder will include one or more protection pins biased towards the barrel, the lock housing having one or more protection pin recesses for receiving at least part of the protection pins during inserti on of a key, the projection of the key causing the one or more protection pins to extend into the one or more protection pin recesses dining insertion of the key, the projection of the key including one or more recesses that align with the one or more protection pins when the key is rally inserted into the key slot such that the protection pins are biased inwardly towards the barrel and out of the one or more protection pin recesses, the one or more protection pin recesses not preventing rotation of the lock when the key is properly inserted in the key slot.
  • the key for actuating the lock cylinder includes bits for moving the sets of barrel pins and housing pins in a first direction and the projection for moving the arm comprises a projection extending in a different direction to the first direction.
  • the projection for moving the arm comprises a projection extending at right angles to the first direction.
  • the key moves the sets of pins in a generally vertical direction and the projection extends in and generally horizontal direction.
  • the projection of the key may include a contact surface that comes into contact with the arm or with a driving member or a driving mechanism that can drive the arm out of contact with the lock housing.
  • the projection may have one or more recesses located so that the one or more recesses of the projection coincide with the location of any protection pins included in the lock cylinder.
  • the special profile of the key with the side projection is designed to depress and operate the arm in the barrel so that it moves out of contact with the lock/cyiuider housing and permits the barrel to turn
  • a lock system can be designed to have a current standard operate somecylinders in the system that do not have the arm installed into the barrel, whilstlhe special profile keys can work most or all cylinders in the system as required.
  • each unit occupant may be provided with a standard profile key that can operate a front access gate to the unit complex and the fnront door to an occupant's unit.
  • there may be other areas to which the occupants of the units are not allowed access such as an enclosure housing electrical components.
  • the locks used on the enclosure housing electrical components can be in accordance with the present invention and the superintendent (and possibly employees of the electricity supply company) can be provided with special profile keys to enable them to have access to the enclosure *
  • the key slots of all of the barrels and the system will have openings that enable keys having projections to be inserted therein, even if the particular lock does not include the arm in the barrel
  • the special profile key of the superintendent can be inserted into all locks in the system
  • Embedments of the present invention enable the locksmith to produce for the system owner (A) lock products and keys, and that the end user can also source additional products and have those products become an extended part of their own lock system with (B) two or more levels of restricted and unrestricted keys for issue to provide access to their property.
  • a lock system using this product can include locks and keys on a property on level 1 keys, being non- restricted keys where the end user or person can source additional keys without signatory control and other locks on the same property on level 2 keys, being restricted and controlled issue keys for access, that are only available from the originating manufacturer locksmith of the system with a recorded signatory order.
  • the present invention can also provide a system with a mix of lock cylinder/s incorporated into the system that would function on system (B) restricted key s as well as with areas or parts of the sy stem of non-restricted key access, whilst also providing special access to designated locks or areas functioning on the system (A) key.
  • Figure I shows a perspective view of a lock cylinder in accordance with an embodiment of the present invention.
  • Figure 2 shows a perspective view of a lock barrel in accordance with one embodiment of the present invention
  • Figure 3 shows a side elevation of the barrel shown in figure 2, showing the spacing and location of the arms mounted in the barrel;
  • Figure 4 shows a top elevation of the barrel shown in figure 2 showing the standard position of the cylinder pin borings and the special locking arras mounted in the barrel together with the position of the pivot pin for the special locking arms mounted in the barrel;
  • Figoie 5 shows a front section of view of the lock cylinder showing the locking arm in a position that is biased into contact with the lock housing;
  • Figure 6 shows a front sectional view of the lock cylinder showing the locking arm being moved to a position at which it is out of contact with the lock housing following insertion of a correctly profiled key.
  • FIG. 1 shows a lock cylinder 10.
  • the lock cylinder 10 includes a lock housing 12.
  • Lock bousing 12 has a bore formed therein and a lock barrel 14 is fitted into the bore in the lock housing 12.
  • a locking mechanism, generally denoted at 16, is actuated by rotation of the barrel 14.
  • the locking mechanism may be of conventional design and need not be described further. The skilled person will appreciate that the locking mechanism operates a latch, a locking bolt or the like which is used to lock a door or a gate, etc.
  • the barrel 14 includes a key slot 18.
  • the key slot 18 has an opening in the front face 19 of the barrel 14.
  • the barrel 14 is shown in figure 2,
  • the barrel 14 includes six spaced bores 20, 22, 24, 26, 28, 30. These bores come into alignment with a corresponding series of six bores mat are formedin the lock housing 12.
  • the bores each hold a bore pin 32 and a housing pin 34.
  • a shear junction or shear point 36 exists at the point of contact between the bore pin 32 and the housing pin 34. This is best shown in figure 6.
  • a spring 38 biases the pins 32, 34 inwardly towards the bore 14. This arrangement of bores and pins is conventional in pin and tumbler locks and it need not be described further.
  • Figures 3 and 4 show side elevation and top elevation views, respectively, of the barrel.
  • the slots 40, 42 each house an arm 44 (see figures 5 and 6).
  • Arm 44 is of generally S shape.
  • Arm 44 has one end 46 and a second end 48.
  • a pivot pin 50 extends through a bore drilled into the barrel from the rear face 52 of me barrel This is best shown in figure 4.
  • the pivot pin 50 extends through an opening 54 formed in the arm 44.
  • the arm 44 can pivot about the pivot pin 50 extending through opening 54.
  • a biasing spring 56 is mounted between an inner wall 58 of the slot 40, 42 and the arm 44. As can be seen from figures 5 and 6, the biasing spring 56 has one end that contacts the inner wall 58 of the slot. The other end 60 is located in or mounted to a depression 62 formed in the ami 44.
  • the housing 12 that surrounds the barrel 14 includes a recess 64 that receives the one end 46 of the arm 44, as best shown in figure 5.
  • the one end 46 of the arm 44 extends into the recess. Attempts to rotate the barrel 14 will result in the end 46 of the arm 44 coming into contact with the respecti ve shoulders formed by the recessed sides of the recess 46, thereby preventing the barrel from rotating.
  • the arm 44 when a key 66 having a standard pmfile fe inserted into the key slot, the arm 44 remains in the position shown in figure 5 in which the one end 46 is located in the recess 64 in the lock housing 12.
  • the lock cylinder cannot be operated by a key of standard profile, even if the key has appropriate bits to enable the housing pins and bore pins to be moved to a position at which the shear point 36 is located at the j unction between the barrel 14 and the lock housing 12.
  • Figure 6 shows the lock barrel 14 having a key 68 of special profile inserted therein.
  • Key 68 has the same bit profile as the key 66 shown in figure 5, which will ensure correct orientation of the housing pins and bore pins to enable the shear point of the pins to be located at the junction between the barrel 14 of the lock housing 12.
  • the key 68 also includes a laterally extending projection 70 in the form of a wing extending sidewap from the shank of the key 68. Upon insertion of the key 68 into the key slot 18, the outer contacting surface of the projection 70 comes into contact with the second end 48 of the arm 44.
  • additional bores 72, 74 are formed in the barrel 14. As best shown in figure 3, additional bores 72, 74 are located to the front of respective slots 40, 42.
  • the additional bores 72, 74 each house a protective pin 76 (see figure 6).
  • a biasing spring biases the protective pin 76 inwardly towards the barrel As shown in figure 5, the protective pin 76 normaily is seated within the outer diameter of the barrel 14.
  • the housing 12 is provided with a protective pin recess 78 that is in alignment wim the protective pin 76. If a person seeks unauthorised access to the lock by inserting a normal key and inserting a wire through the key slot at the position at which the projection 70 of the correct key the would normally rest, the wire will force the protective pin 76 outwardly so that an end of the protective pin 76 rests in the protective pin recess 78 in the lock housing 12. Therefore, although the wire may be used to actuate the arm 44 and withdraw the one end 46 of arm 44 out of contact with the housing 12, the protective pin 76 will have been pushed into the protective pin recess 78 by the wire. As a result, the protective pin 76 locks the barrel against rotation relative to the housing. This makes picking the lock very difficult
  • the projection 70 of the correct key 68 includes one or more recesses that are positioned such that when the key 68 is fully inserted into the key slot 18, the recesses in the projection 70 house or receive the inner end of the protective pins 76.
  • the outer ends of the protective pins 76 remain located within the diameter of the barrel (and do not extend into the protective pin recesses 78 in the lock honsing 12). In this position, the protective pins do not prevent rotation of the barrel relative to the lock housing,
  • the key 68 may be provided with one or more recesses in the projection 70 in a manner that is simito to that as shown in figure 8 of Australian patent number 666369.
  • the lock cylinder of the present invention provides a lock cylinder of enhanced security.
  • the lock cylinder is desirably suitable for use with a C4 key profile having an additional lateral projection or wing extending along a side thereof.
  • locking arms may provided on both sides of the key slot and the key maybe provided with projections or wings on both sides of the key shank,
  • the key slot suitably includes an opening that is of complimentary shape to keys haying me desired projections or wings thereon.
  • the lock cylinder may be provided with one or more locking arms. In the embodiment shown in the attached figures, the loefc cylinder is provided with two locking arms.
  • Locks cylinders in accordance with the present invention allow lock systems to be implemented in which some locks have lock cylinders in accordance with the present invention and other locks have lock cylinders without the locking arms.
  • a supermtendent may have a key with the lateral projection or wing in order to provide master key access to a number of locks.
  • an occupant may be provided with a lock that does not have a locking arm and a key that does not include the lateral projection or wing.
  • the occupant's key can operate, for example, the front door of the unit that is equipped with a lock without the locking arms.
  • the occupants key cannot operate a secure lock that is fitted with the locking arm, such as a lock fitted to an enclosure housing electrical meters or equipment
  • the superintendent will have a key that has the projection or wing and mis enables the superintendent to operate both the lock to the oeeupanfs unit and the lock to the enclosure hous ing electri cal meters or equipment.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un barillet de serrure et un canon qui fonctionneront et tourneront uniquement lorsque la bonne clé est introduite dans l'ouverture de canon. La clé aura des découpes pour correspondre au mécanisme de broche du barillet de serrure. La clé comporte également une saillie ou aile qui activera et enfoncera un bras pivotant faisant partie de l'ensemble canon qui se verrouille dans le logement de barillet. Les caractéristiques spéciales du clé comportant l'aile et le bras de verrouillage permettent d'obtenir deux (2) niveaux distincts de clés et de barillets de serrure dans une série de serrures ou un système de clé maître. Le niveau un est une clé spéciale comprenant une aile qui est considérée comme limitée et uniquement disponible dans le système de serrure après la présentation d'un ordre écrit. Le niveau deux est une clé standard sans aile qui peut être disponible chez un serrurier ou un centre de découpe de clé quelconque.
PCT/AU2016/000153 2015-05-14 2016-05-04 Serrure et clé pour cette dernière Ceased WO2016179631A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2015901753A AU2015901753A0 (en) 2015-05-14 Lock and Key Therefor
AU2015901753 2015-05-14

Publications (1)

Publication Number Publication Date
WO2016179631A1 true WO2016179631A1 (fr) 2016-11-17

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ID=57247570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2016/000153 Ceased WO2016179631A1 (fr) 2015-05-14 2016-05-04 Serrure et clé pour cette dernière

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WO (1) WO2016179631A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018218301A1 (fr) * 2017-06-02 2018-12-06 Integrated Lock Systems Australia Pty Ltd Serrure et clé pour cette dernière
USD908464S1 (en) 2019-08-14 2021-01-26 Integrated Lock Systems Australia Pty Ltd Key

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638651A (en) * 1985-08-07 1987-01-27 Yale Security Inc. Lock cylinder having two sets of tumblers and key therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638651A (en) * 1985-08-07 1987-01-27 Yale Security Inc. Lock cylinder having two sets of tumblers and key therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018218301A1 (fr) * 2017-06-02 2018-12-06 Integrated Lock Systems Australia Pty Ltd Serrure et clé pour cette dernière
GB2578242A (en) * 2017-06-02 2020-04-22 Integrated Lock Systems Australia Pty Ltd Lock and key therefor
GB2578242B (en) * 2017-06-02 2020-11-18 Integrated Lock Systems Australia Pty Ltd Lock and key therefor
US10890012B2 (en) 2017-06-02 2021-01-12 Integrated Lock Systems Australia Pty Ltd Lock and key therefor
USD908464S1 (en) 2019-08-14 2021-01-26 Integrated Lock Systems Australia Pty Ltd Key

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