EP1035278B1 - Tumbler lock-key-assembly - Google Patents

Tumbler lock-key-assembly Download PDF

Info

Publication number
EP1035278B1
EP1035278B1 EP00301854A EP00301854A EP1035278B1 EP 1035278 B1 EP1035278 B1 EP 1035278B1 EP 00301854 A EP00301854 A EP 00301854A EP 00301854 A EP00301854 A EP 00301854A EP 1035278 B1 EP1035278 B1 EP 1035278B1
Authority
EP
European Patent Office
Prior art keywords
key
locking
combination
lock
tumbler
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 - Lifetime
Application number
EP00301854A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1035278A3 (en
EP1035278A2 (en
Inventor
Jouni Haapaniemi
Marko Lindström
Olli Pihlaja
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.)
Bjorkboda Las Oy AB
Original Assignee
Bjorkboda Las Oy AB
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 Bjorkboda Las Oy AB filed Critical Bjorkboda Las Oy AB
Priority to DK00301854T priority Critical patent/DK1035278T3/da
Priority to SI200030698T priority patent/SI1035278T1/xx
Publication of EP1035278A2 publication Critical patent/EP1035278A2/en
Publication of EP1035278A3 publication Critical patent/EP1035278A3/en
Application granted granted Critical
Publication of EP1035278B1 publication Critical patent/EP1035278B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks

Definitions

  • This invention relates to a combination of a disc tumbler lock and a key therefor, the combination being in accordance with the preamble of ensuing claim 1.
  • a lock and key combination similar to the preamble of claim 1 is disclosed in DE-B-1159306.
  • the invention also relates to the key of the combination and a key blank from which such a key is formed.
  • Disc tumbler locks are often used as security locks in doors. While the market is expanding, there is a requirement for there to be a large number of possible different key alternatives for operating such locks. In principle this can be achieved, for example, by increasing the number of tumbler discs in the lock, by increasing the stepping alternatives for combination surface millings or by increasing the number of combination values. However, both the size of the key and the lock must be kept reasonable. Furthermore, decreasing the stepping of milling for its part can cause malfunctions and error openings.
  • the locking channel of the tumbler discs used in these locks has locking branches and a straight connecting branch which extends in the direction of transfer movements of the lock bolt.
  • the lock bolt can then be pressed to its opening position while the locking pin moves directly through the branch of the locking channel in question.
  • An aim of the invention is to provide a new combination of a disc tumbler lock and a key therefor which allows the use of a great number of new key alternatives and which makes it easier to prevent or deter picking of the lock.
  • the key-bit means includes guide means which affect the lock bolt so that, in the final stage of the selecting movement of the tumbler disc, it guides the locking pin into the third branch of the locking channel.
  • the third branch of the locking channel has at least one guiding means for guiding the locking pin at the same time as the transfer movement of the lock bolt and the selecting movement of the tumbler discs are achieved.
  • the movement of the locking pin into the branch which interconnects the locking branches of the locking channel and, in this branch at least, at an early stage of the movement of the locking pin requires simultaneous movement of the tumbler disc.
  • the traditional way of picking a lock by alternately arranging individual tumbler discs of the lock, does not work.
  • the third branch of the locking channel advantageously has a guide surface which is angled or bevelled with regard to the transfer movement of the lock bolt and is arranged to co-operate with the locking pin.
  • the third branch of the locking channel is provided with a protrusion which limits or partially obstructs the width of the channel and which is arranged on the opposite side of the channel to the angled or bevelled guide surface and which, together with this guide surface, affects the locking pin and guides it in the direction of the selecting movement of the tumbler disc.
  • Different key combinations can advantageously be accomplished by varying the shape and/or the size of the guiding means of the third branch of the locking channel of the tumbler disc.
  • the corresponding shapes of the combination surfaces of the key can be changed correspondingly so that combination surfaces of a certain shape accomplish the functional compatibility of the locking pin only with a locking channel provided with guiding means having a certain shape and/or size.
  • the key has an elongate shank and the key-bit means extend in an axial plane containing the elongate axis of the shank and are formed with said combination surfaces, the guide means extending outwardly, perpendicular to the axial plane, further than the key-bit means and are arranged to move the lock bolt and thus the locking pin before finishing the selecting movement of the tumbler discs of the lock.
  • the combination surfaces accomplishing the selecting movement of the tumbler discs are arranged on the key blade on both sides of the guide member in the axial direction of the shank of the key. If there are equal numbers of combination surfaces on both sides of the guide means, the key can advantageously be operated from both sides of the lock.
  • the key-bit means may also include a guide surface independent of the guide means to provide the transfer movements of the lock bolt after the selecting movement of the locking combination.
  • the guide surface and the guide means are suitably arranged in the same cross-sectional plane with regard to the shank of the key.
  • the number of combination alternatives is further increased as the key has two blade parts provided with combination surfaces and positioned symmetrically on both sides of the shank of the key blank.
  • the combination surfaces of the blade parts can mutually be at least partly different either as regards the value of millings or the type of the combination surface.
  • a key blank as claimed in the ensuing claim 13.
  • the guide means is arranged to move the lock bolt of the lock, and thus also the locking pin, before finishing the selecting movement of the tumbler discs of the lock.
  • reference numeral 1 designates a lock casing of a lock for installation on a door or the like and includes a front plate 2 and a lock bolt 3 movable back and forth on operation of a key 8 of the lock between a protruding locked position and a retracted released position.
  • the lock casing 1 preferably has a keyhole 1b at each of its two sides.
  • the key 8 (see Fig. 8) includes a shank 8a having two key-bits in the form of blade parts 8b1 and 8b2.
  • Figs. 8 and 9 there are combination surfaces 8c (8c1, 8c2 etc.) on the key 8 for each tumbler disc 5 and correspondingly the tumbler discs 5 have counter surfaces 5k for the combination surfaces of the key.
  • the tumbler discs 5 move upwards (as viewed in Figs. 1 to 6) guided by pins 9a and 9b of the lock casing against the force of springs 6.
  • the combination surfaces are formed by milling the key-bits of the key.
  • the key 8 has two key-bits or blade parts 8b1 and 8b2. These together with the three locking branches 5a, 5b and 5d of the locking channel provide two protruding positions of different length for the lock bolt 3, which can be obtained with two consecutive selecting movements of the tumbler discs 5 caused by turning the key 8.
  • the blade parts 8b1 and 8b2 of the key are additionally equipped with guide members 8d (8d11 etc.), which act on the guide surfaces 3a1, 3a2, 3b1 and 3b2 of the lock bolt 3 to transfer the lock bolt 3 at the final stage of each selecting movement of the tumbler discs 5 so that the locking pin 4 is guided to the branch 5c of the locking channel or correspondingly to the branch 5e.
  • the blade parts of the key have guide surfaces 8e1 and 8e2 to provide the actual transfer movements of the lock bolt 3 after the selecting movement of the locking combination. For this there are guide surfaces 3a3 and 3b3 in the lock bolt 3.
  • the guide protrusion 8d12 in the key hits the guide surface 3a1 of the lock bolt and starts to move the lock bolt 3 to the right (as viewed in Fig. 2) concurrently as the tumbler discs 5 are moved as a result of being displaced by the combination surfaces of the key.
  • the locking pin 4 is first guided to the branch 5c of the locking channel and from there further onward until the selecting movement of the tumbler discs is finished, assuming that the analogous combination surfaces of the key are correct. Then, in the situation of Fig.
  • the guide surface 8e1 of the key affects the stop surface 3a3 of the lock bolt and moves the lock bolt forward at the same time as the locking pin 4 moves in the branch 5c below the guide protrusion 5g.
  • the transfer of the locking pin 4 through the branch 5c succeeds only with the help of the correct combination of the above-mentioned movements.
  • the guide protrusion 5g would prevent the moving of the locking pin 4 in the branch 5c of the locking channel.
  • the guide surface 5f prevents the transfer of the locking pin 4 in the branch 5c of the locking channel in case the corresponding combination surface of the tumbler disc 5 is incorrect either regarding its combination value or its combination surface type.
  • the locking pin 4 has already moved to the position of the locking branch 5b of the locking channel.
  • the tumbler discs 5 are moved downwards (as viewed in Fig. 4) pressed by the spring 6 at the same time as their guide surfaces 5k and combination surfaces 8c1 still remain in contact with each other.
  • the guide member 8d11 on the other side of the blade 8b1 of the key acts on the guide surface 3a2 of the lock bolt and the guide surface 8e1 of the key correspondingly acts on the guide surface 3a1 of the lock bolt so that they together guide the locking pin 4 past the picking recess 5j located in the locking branch 5b of the locking channel.
  • the locking pin 4 is able to move to the end of the locking branch 5b as is apparent from Fig. 5.
  • the guide surfaces 5f and 5i of the locking channel and the guide protrusions 5g and 5h differ somewhat from each other.

Landscapes

  • Lock And Its Accessories (AREA)
  • Saccharide Compounds (AREA)
  • Casings For Electric Apparatus (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Switches With Compound Operations (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP00301854A 1999-03-10 2000-03-07 Tumbler lock-key-assembly Expired - Lifetime EP1035278B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK00301854T DK1035278T3 (da) 1999-03-10 2000-03-07 Tilholderlåse- og nögleenhed
SI200030698T SI1035278T1 (en) 1999-03-10 2000-03-07 Tumbler lock-key-assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990519 1999-03-10
FI990519A FI114329B (fi) 1999-03-10 1999-03-10 Haittalevylukko-avain-yhdistelmä ja siihen kuuluva avain ja sen aihio

Publications (3)

Publication Number Publication Date
EP1035278A2 EP1035278A2 (en) 2000-09-13
EP1035278A3 EP1035278A3 (en) 2002-01-09
EP1035278B1 true EP1035278B1 (en) 2005-06-01

Family

ID=8554145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00301854A Expired - Lifetime EP1035278B1 (en) 1999-03-10 2000-03-07 Tumbler lock-key-assembly

Country Status (15)

Country Link
EP (1) EP1035278B1 (cs)
AT (1) ATE296935T1 (cs)
CZ (1) CZ298968B6 (cs)
DE (1) DE60020425T2 (cs)
DK (1) DK1035278T3 (cs)
EE (1) EE04687B1 (cs)
ES (1) ES2241551T3 (cs)
FI (1) FI114329B (cs)
HU (1) HU225754B1 (cs)
NO (1) NO20001245L (cs)
PL (1) PL198808B1 (cs)
PT (1) PT1035278E (cs)
RU (1) RU2230865C2 (cs)
SI (1) SI1035278T1 (cs)
UA (1) UA64764C2 (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2461692C2 (ru) * 2007-10-31 2012-09-20 Чиза С.П.А. Устойчивый к взлому замок
ITMI20081838A1 (it) * 2008-10-16 2010-04-17 Inco System S R L Ct Sicure Zza O In For Serratura antimanipolazione, particolarmente del tipo a doppia mappa.
IT1397990B1 (it) * 2010-02-12 2013-02-04 Mottura Serrature Di Sicurezza Serratura di sicurezza.
IT1399264B1 (it) * 2010-03-16 2013-04-11 Mottura Serrature Di Sicurezza Serratura di sicurezza
IT1403933B1 (it) 2011-02-11 2013-11-08 Securemme S R L Serratura di sicurezza
PL131805U1 (pl) * 2023-11-21 2025-05-26 Integer.Pl Spółka Akcyjna Blokada drzwiczek skrytki

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617184B1 (en) * 1993-03-25 1998-11-18 Abloy Security Ltd. Oy Cylinder lock-key-combination

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE136743C (cs) *
FR575788A (fr) * 1924-01-12 1924-08-06 Verrou de sûreté perfectionné
US1960032A (en) * 1932-09-17 1934-05-22 Schmidt Eduard Security lock
DE1159306B (de) * 1962-05-26 1963-12-12 Fliether Fa Karl Zuhaltungsschloss
RU2067651C1 (ru) * 1991-12-27 1996-10-10 Алексей Иванович Затолокин Замок

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617184B1 (en) * 1993-03-25 1998-11-18 Abloy Security Ltd. Oy Cylinder lock-key-combination

Also Published As

Publication number Publication date
ATE296935T1 (de) 2005-06-15
HUP0001131A2 (hu) 2001-05-28
FI114329B (fi) 2004-09-30
FI990519A7 (fi) 2000-09-11
FI990519A0 (fi) 1999-03-10
NO20001245D0 (no) 2000-03-09
DE60020425D1 (de) 2005-07-07
PL338845A1 (en) 2000-09-11
UA64764C2 (uk) 2004-03-15
NO20001245L (no) 2000-09-11
PL198808B1 (pl) 2008-07-31
PT1035278E (pt) 2005-09-30
DE60020425T2 (de) 2006-04-27
HU0001131D0 (en) 2000-05-28
SI1035278T1 (en) 2005-10-31
HU225754B1 (en) 2007-08-28
EE200000200A (et) 2000-10-16
DK1035278T3 (da) 2005-09-05
EP1035278A3 (en) 2002-01-09
ES2241551T3 (es) 2005-11-01
CZ298968B6 (cs) 2008-03-26
RU2230865C2 (ru) 2004-06-20
CZ2000879A3 (cs) 2000-11-15
EP1035278A2 (en) 2000-09-13
EE04687B1 (et) 2006-08-15

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