EP1997982A1 - Verriegelungsvorrichtung - Google Patents

Verriegelungsvorrichtung Download PDF

Info

Publication number
EP1997982A1
EP1997982A1 EP08251916A EP08251916A EP1997982A1 EP 1997982 A1 EP1997982 A1 EP 1997982A1 EP 08251916 A EP08251916 A EP 08251916A EP 08251916 A EP08251916 A EP 08251916A EP 1997982 A1 EP1997982 A1 EP 1997982A1
Authority
EP
European Patent Office
Prior art keywords
lock
barrel
casing
bores
locking pins
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.)
Withdrawn
Application number
EP08251916A
Other languages
English (en)
French (fr)
Inventor
Nigel Philip Shenton
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.)
Window Fabrication and Fixing Supplies Ltd
Original Assignee
Window Fabrication and Fixing Supplies Ltd
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 Window Fabrication and Fixing Supplies Ltd filed Critical Window Fabrication and Fixing Supplies Ltd
Publication of EP1997982A1 publication Critical patent/EP1997982A1/de
Withdrawn legal-status Critical Current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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
    • 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
    • E05B27/0003—Details
    • E05B27/0017—Tumblers or pins

Definitions

  • This invention relates to a locking device for a closure member such as a door, and in particular, to a locking device which is adapted to prevent forced entry by bumping the lock.
  • Bumping of a lock involves forcing a lock using a key having a number of points corresponding to the number of pins in the lock. This is referred to as a "Bump Key”.
  • the bump key is inserted into the lock, and although the key will not make the lock operational, it provides a bridge between the person trying to bump the lock and the locking pins.
  • the present invention is concerned with providing a means by which the successful bumping of locks can be prevented or at least alleviated.
  • a lock adapted to prevent forcing of the lock, by for example bumping the lock
  • said lock including a key hole to allow insertion of a key to operate the lock, a barrel including a number of bores, a casing including a number of corresponding bores to the bores in the barrel, and a number of locking pins located in said bores of the casing and the barrel to prevent rotation of the barrel with respect the casing unless the locking pins are correctly aligned in the bores wherein each locking pin has at least two component parts so that when the key to operate the lock is inserted in the keyhole the locking pins are depressed and aligned so that the barrel can be rotated with respect to the casing wherein at least one of the locking pins has a component part located in the casing when the lock is capable of being operated that is split into two or more members.
  • the locking pin arrangement also includes a spring member located in the base of the bore of the casing which exerts an upward force on the locking pin arrangement forcing the respective pin members into their normal operational position, so locking the lock, and preventing relative rotation of the barrel and the casing.
  • the basis of the normal operation of the lock of the present invention may be substantially unaffected by the adaptation that has been made to the lock according to the present invention and therefore said invention may also include one or more spring members located to act between the bottom of the bore in the casing and the bottom of the locking pin arrangement located in said bore.
  • the locking pins are formed as two components, an upper and a lower component, with the division between said components being aligned with the division between the barrel and the casing to allow the lock to be operated by insertion of the key in the keyhole.
  • at least one of the upper components of the locking pins is split into two members.
  • At least one of the locking pins has the upper component of the locking pin split into two members.
  • the different construction of the locking pin causes the pin components to behave differently to a single component when bumbed, and it is this variation in the behaviour that allows the invention to work.
  • the action and reaction forces between the adjacent pin components act differently upon application of an impact thereto than a single component.
  • the outcome of the collision between pin components within the bore is thus far less predictable than for a single pin body.
  • the invention may prevent successful bumping of the lock in a satisfactory manner where only one locking pin from a number of locking pins is provided in the form of a plurality of component parts. This alone may provide the necessary added security.
  • a plurality of pins may provided in the form of a plurality of component parts according to a further embodiment.
  • the location of the adapted locking pin or pins along the number of locking pins is substantially immaterial. It is believed that the actual position of the adapted locking pin will also have an effect on the security of the lock and therefore the position.
  • the invention can be further heightened in effect by having the number and position of the adapted locking pins changed and located at random positions.
  • the inertia or movement characteristics of one or more pins or components parts of said pin or pins may be further altered from that of a solid pin body.
  • the shape of the pin body may be non cylindrical and may be substantially I-sbaped in section.
  • the spring tensions and or spring properties may be varied between one or more bores.
  • One or more pins or pin portions may be formed of a material having different characteristics to those of the other pins or pin portions, such as for example a different density.
  • One or more pins or pin portions may be formed of a different material to the material of the other pins or pin portions.
  • One or more pins or pin portions may be formed of a plastic, metal or ceramic.
  • lubricating fluid may be used to unbalance the movement characteristics of the pins in one or more bores. It is possible that a substantially uniform fluid composition may provide different theological properties once applied and thus may affect the reaction of one or more pins or pin elements differently to the others within the lock
  • a lock 1 having a casing 2, a barrel 3 and a series of locking pins 4, labelled A to E.
  • the casing 2 comprises a body having a main body of generally Keyhole shape which has a main bore 5 in the upper section of the body and a first series of five bores 6 extending into the lower section of the body and which bores 6 are arranged in alignment along the length of the main bore 5.
  • the barrel 3 is formed with an elongate circular body and includes a keyhole opening 7 at one end for the insertion of a key 8 to operate the lock and a series of five bores 9 in alignment along the length of the barrel 3.
  • Identifying the counter bores A to E from the key insertion end of the barrel 2 and casing 3 means that in the particular example shown each of the counter bores A, ad C to E is provided with a locking pin arrangement 10.
  • the locking pin arrangement 10 comprises an upper pin member 11 and a lower pin member 12 which are located one above the other in the respective counter bore.
  • the locking pin arragement 10A of the counter bore B of the locking arrangement differs from that of the other locking pin arrangements 10 in that the upper member is further split into two components 11a and 11b forming a three member locking pin. In all other operational features the locking pin arrangement 10A is the same as for the other locking pin arrangements.
  • a spring member 13 is located in the bottom of each of the bores 6 so that it acts against the base of the lower pin member 12 urging the respective locking pin into a normal operational condition that has each of the locking pins 10 extending into the respective bore 9 of the barrel 3 so securing the barrel 3 and the casing 2 against respective rotational movement
  • the locking pin arrangements 10, 10A act to secure the barrel 3 and the casing in position with respect to each other.
  • the pins extend across the interface between the barrel and the casing so as to prevent relative rotation therebetween and operation of the lock is prevented.
  • the lock is secure in such a state.
  • the present invention and in particular the locking pin arrangement 10A is adapted to provide a means for overcoming the problem.
  • the pin members of the locking pin arrangements are jumped and the gentle but insistent pressure applied by the bump key allows the barrel and casing to move relative to one another when the upper pin members 11 clear the separation point between the casing and the barrel. This in turn allows the lock to be bumped clear and operated.
  • the provision of the split upper pin member 11 in one of the bores means that the timing of this bumping and the effect on the locking pins is altered so that when the lock is bumped the lower part 11b of the upper pin member is trapped between the casing 2 and the barrel 3. This prevents the lock being operated.
  • the individual components Upon application of an impact, the individual components will either collide or else move apart dependent the precise nature of the impact force and minutia such as the alignment of the components and instantaneous frictional forces.
  • the resultant reaction force will urge the pins in opposite directions such that a space is formed therebetween.
  • the pins components are extremely unlikely to move in unison to a position in which they are immediately adjacent one another and located above the split between the barrel and casing.
  • one or more pin components can be formed as an anti-pick pin, such that it has a non-uniform cross sectional profile.
  • the anti-pick pin component may have opposing end portions of a first width or diameter and a mid portion of reduced width or diameter such that the pin component is '1' shaped in section. This removes weight from the pin component such that the inertia and movement characteristics of the pin component are altered. Thus when a solid pin components collides with a reduced weight pin component, the two pin components are even less likely to move in unison.
  • the weight of the pin may be offset, for example by moving the central portion of the I section pin off centre. Again this may upset the natural balance of the pin and reduce the likelihood of successful bumping of the lock.
  • one of the upper pin components 11a or 11b could be formed of a different material to that of the other of the upper pin components.
  • Metals of different densities or other material properties could be used, such as, for example, a combination of aluminium and steel pin components.
  • One pin portion could be formed of a plastic material such that its weight and/or frictional properties within the bore are altered compared to the other pin portion.
  • Another option for upsetting the balance of the pins is to use springs having different spring characteristics or else similar springs which are compressed by varying amounts in each cylinder. This may be used in addition to or else instead of the above options.

Landscapes

  • Lock And Its Accessories (AREA)
EP08251916A 2007-05-31 2008-06-02 Verriegelungsvorrichtung Withdrawn EP1997982A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0710341A GB0710341D0 (en) 2007-05-31 2007-05-31 Locking device

Publications (1)

Publication Number Publication Date
EP1997982A1 true EP1997982A1 (de) 2008-12-03

Family

ID=38289564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08251916A Withdrawn EP1997982A1 (de) 2007-05-31 2008-06-02 Verriegelungsvorrichtung

Country Status (2)

Country Link
EP (1) EP1997982A1 (de)
GB (1) GB0710341D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107036509A (zh) * 2017-06-20 2017-08-11 长沙金诺自动化技术有限公司 一种射频同轴连接器尺寸检测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005010302A2 (en) * 2003-07-31 2005-02-03 Moshe Dolev Method and assembly to prevent impact-driven manipulation of cylinder locks
EP1526233A2 (de) * 2003-10-23 2005-04-27 Klaus Noch Schliesszylinder, insbesondere für ein Türschloss
GB2429235A (en) * 2005-08-17 2007-02-21 Jukka Talvio A pin tumber lock and a method for altering a lock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005010302A2 (en) * 2003-07-31 2005-02-03 Moshe Dolev Method and assembly to prevent impact-driven manipulation of cylinder locks
EP1526233A2 (de) * 2003-10-23 2005-04-27 Klaus Noch Schliesszylinder, insbesondere für ein Türschloss
GB2429235A (en) * 2005-08-17 2007-02-21 Jukka Talvio A pin tumber lock and a method for altering a lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107036509A (zh) * 2017-06-20 2017-08-11 长沙金诺自动化技术有限公司 一种射频同轴连接器尺寸检测装置

Also Published As

Publication number Publication date
GB0710341D0 (en) 2007-07-11

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