US3707863A - Cylinder lock - Google Patents

Cylinder lock Download PDF

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Publication number
US3707863A
US3707863A US3707863DA US3707863A US 3707863 A US3707863 A US 3707863A US 3707863D A US3707863D A US 3707863DA US 3707863 A US3707863 A US 3707863A
Authority
US
United States
Prior art keywords
tumblers
key
cylinder
lock
slot
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
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English (en)
Inventor
D Schwab
H Schwab
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.)
Ymos Metallwerke Wolf and Becker GmbH and Co
Original Assignee
Ymos Metallwerke Wolf and Becker GmbH and Co
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 Ymos Metallwerke Wolf and Becker GmbH and Co filed Critical Ymos Metallwerke Wolf and Becker GmbH and Co
Application granted granted Critical
Publication of US3707863A publication Critical patent/US3707863A/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
    • E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7689—Tumblers
    • Y10T70/7695—Plate

Definitions

  • ABSTRACT A cylinder lock has tumblers mounted in two rows, the tumblers being arranged symmetrically in pairs, each pair having one tumbler from each row in a plane, and the tumblers in each pair being mutually offset and displaceable parallel to one another in opposite directions against biassing springs when a key is inserted, whereby protruding parts of the tumblers are withdrawn from recesses in the outer cylinder of the lock to allow the barrel to be turned.
  • the key may be reversible, i.e. the profile on one edge may be a mirror image of that of the other edge about the longitudinal center line of the key.
  • each tumbler may have two key engaging edges, stepped relative to the diametral direction to engage correspondingly stepped key profiles.
  • the invention increases the number of tumblers, and hence the number of alternative key profiles, in a given length of lock compared with conventional locks.
  • the invention relates to a cylinder lock having plate tumblers.
  • the invention provides a lock having two rows of plate tumblers, which are arranged symmetrically in pairs, each pair having one tumbler from each row in a plane, the tumbler of each pair being mutually offset and displaceable parallel to one another in opposite directions.
  • the invention offers the advantage that, compared with previous locks, more tumblers can be accommodated in thelock cylinder over a short or extremely short length, and in addition the lock security and the number of possible locking combinations can be in creased.
  • On deflection of the tumblers in the detent passages they bear against the lateral walls of the barrel and so prevent the lock cylinder from being turned without a key or with the wrong key.
  • the keyway is uninterrupted in the region of the tumbler passages so that deflection of the key is impossible.
  • FIG. 1 shows a view of a lock cylinder
  • FIG. 2 shows a sectional view on the line II-II of FIG. 1, with key withdrawn and tumblers locking;
  • FIG. 3 shows a longitudinal section through the lock cylinder of FIG. 2 with key inserted and tumblers not projecting
  • FIG. 4 shows a reversible key
  • FIG. 5 shows a section on the line V-V of FIG. 2;
  • FIG. 6 shows an end view of a cylinder lock
  • FIG. 7 shows a view corresponding to FIG. 3 for a normal key
  • FIG. 8 shows a non-reversible key
  • FIG. 9 shows an end view of a cylinder lock shown in FIG. 10 shows a view similar to FIGS;
  • FIGS. 10a and 10b show enlarged lengthwise sections of two types'of keys
  • FIGS. ll, 12 and 13 each show a cross-section for a further development of the subject of the invention.
  • FIGS. 14 to 19 represent a further development, namely:
  • FIG. 14 corresponding to FIG. 1
  • FIG. 15 corresponding to FIG. 2
  • FIG. 16 corresponding to FIG. 3
  • FIG. 17 corresponding to FIG. 4
  • FIG. 18 corresponding to FIG. 5
  • FIG. 19 corresponding to FIG. 6;
  • FIGS. 20 to 23 represent a further form of construction, namely:
  • FIG. 20 corresponding to FIG. 2
  • FIG. 21 correspondingto FIG. 3
  • FIG. 22 corresponding to FIG. 4
  • FIG. 23 corresponding to FIG. 5.
  • a lock cylinder 1 is adapted to receive a key 2 in such a manner that flat tumblers 3, 4 in the form of small plates are brought into an unlocking position when the key is inserted (FIG. 3).
  • the tumblers are guided in guide passages or slots 5, 6 which are parallel to one another and which are disposed on either side of the central longitudinal axis of the lock. cylinder, perpendicular to this axis. In the example shown, six pairs of tumblers are provided over the length of the lock cylinder 1.
  • the key 2 comprises symmetrical recesses 8 and projections-9 and is a reversible key.
  • the construction of the tumblers and their mode of operation can best be seen from FIG. 5.
  • the outer cylinder 10 is provided with recesses 11 and 12 to receive the tumblers 4 and with recesses 11a, 12a to receive the tumblers 3 in the locked state, as detent passages.
  • the surfaces of webs l3 and 13a between the recesses 11, 11a and 12, 12a respectively serve as stop surfaces which are machined precisely in alignment.
  • compression springs 14 which bear on the one hand against inserted strips 15 and on the other hand against projections 17 on the tumblers 3, 4.
  • the tumblers each include a step 18, the face of which is pressed against a key under this spring force when the key is inserted.
  • the keyway 16 extends over the entire length of the key passage without interruption. This is rendered possible by the arrangement of the guide passages 5, 6.
  • FIGS. 7 to 9 The embodiment of the invention shown in FIGS. 7 to 9 is adapted for use with a non-reversible, key 2a.
  • parts corresponding to those in the first embodiment are designated by the same reference numerals with the index a.
  • FIG. 12 A possible mirror image" construction in relation to FIG. 11 is illustrated in FIG. 12.
  • the dogs 24 and 25 on the tumblers 3 and 4 and the shoulders 26 and 27 are designed for both directions of rotation.
  • FIG. 13 again shows a different profile of the key 2. It is assumed that the direction of rotation is towards the right.
  • FIGS. 14 to 19 Another form of construction of the invention is illustrated in FIGS. 14 to 19, the purpose of which is to develop the cylinder lock described above so that it permits a large number of variations with a favorable structural length.
  • the lock cylinder remains in one piece. As favorable a load distribution as possible is achieved by the arrangement of the plate tumblers.
  • the plate tumblers are distributed in two rows which are mounted eccentrically and, in addition, are staggered. They are displaceable in opposite directions in relation to one another.
  • a short structural length of the key is particularly important for so-called reversible keys, that is to say those keys wherein it is immaterial with which edge upwards they are introduced into the lock.
  • a lock cylinder 1 to receive the key 2 is constructed so that the plate shaped tumblers 3 and 4 are brought into the unlocked position when the key is inserted (FIG. 19).
  • the tumblers are guided in guide passages 5 and 6 which are parallel to one another but staggered and which are disposed outside the central longitudinal axis of the lock cylinder, perpendicular to this axis.
  • the construction of the tumblers and their mode of operation can be seen from FIGS. 15 to 19.
  • the outer cylinder 10 is provided with recesses 11 and 12 to receive the tumblers 4 and with recesses 11a and 12 a to receive the tumblers 3 (detent passages).
  • the webs 13 or 13a respectively provide stop surfaces for key 2 and tumblers 3, 4.
  • Compression springs 14 are mounted in the guide passages 5, 6 and bear on the one hand against inserted strips 15 and on the other hand against projections 17 of the tumblers 3, 4.
  • the tumblers have a step 18 which is guided by the spring force against the key 2.
  • the key 2 it is possible to construct the key 2 with an optimum width.
  • the construction for master key and subsidiary keys, reversible keys etc. is likewise possible.
  • a further embodiment of the invention relates to a further development of the embodiment shown in FIGS. 14 to 19. This development is illustrated in FIGS. 20 to 23.
  • each edge of the key is milled in two planes so that double the number of steps otherwise possible can be accommodated over a given length of key.
  • the key 2 is milled in two planes on each key edge, namely in the planes E, and E at the upper edge of the key as illustrated in FIG. 23, and in the planes E and E at the lower edge of the key.
  • the steps in the planes E, and E cooperate as a reversible key; furthermore the steps in the planes E and E co-operate as a reversible key.
  • the number of steps in the plane E, and E provides the total number of effective key steps.
  • e tumblers associated with the individual steps of the key are appropriately dimensioned.
  • the short structural length remains unaltered.
  • the construction of the master key and subsidiary keys in the reversible-key system is simplified.
  • a key operable cylinder lock comprising:
  • said inner cylinder including a keyhole extending through the length of said cylinder in a diametrical plane and two rows of spaced crosswise slots of unround cross-section extending through the width of the inner cylinder, said slots being disposed on opposite sides of said keyhole plane parallel thereto, each slot in one row being located in alignment with a slot in the other row to form pairs of slots;
  • tumblers a plurality of elongate tumblers, one for each slot, said tumblers having a peripheral outline matching the cross-sectional outline of the slots and being lengthwise slidable in the same;
  • said outer cylinder having in its inner wall recesses, one for each slot, each of said recesses being disposed to be in registry with the respective slot in a predetermined angular position of the inner cylinder relative to the outer cylinder for receiving a portion of the respective tumbler thereby locking the inner cylinder to the outer cylinder;
  • each of said strips defining in the respective slot a shoulder and each of said tumblers having a laterally protruding nose, each of said springs abutting with its ends against the respective shoulder and nose to bias the tumblers toward the outer cylinder.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US3707863D 1969-11-17 1970-11-10 Cylinder lock Expired - Lifetime US3707863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691957642 DE1957642A1 (de) 1969-11-17 1969-11-17 Zylinderschloss

Publications (1)

Publication Number Publication Date
US3707863A true US3707863A (en) 1973-01-02

Family

ID=5751284

Family Applications (1)

Application Number Title Priority Date Filing Date
US3707863D Expired - Lifetime US3707863A (en) 1969-11-17 1970-11-10 Cylinder lock

Country Status (7)

Country Link
US (1) US3707863A (enExample)
AT (1) AT301381B (enExample)
DE (1) DE1957642A1 (enExample)
FR (1) FR2069499A5 (enExample)
GB (1) GB1282969A (enExample)
NL (1) NL7015841A (enExample)
SE (1) SE382488B (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861181A (en) * 1972-04-22 1975-01-21 Wilmot Breeden Ltd Keys
US3969915A (en) * 1973-09-29 1976-07-20 Volkswagenwerk Aktiengesellschaft Lock
US4069693A (en) * 1974-12-26 1978-01-24 Spalding George T Cylinder lock assembly
US5174141A (en) * 1989-11-10 1992-12-29 Kabushiki Kaisha Tokai Rika Denki Seisakusho Cylinder lock
AU672303B2 (en) * 1994-07-01 1996-09-26 Brian Arthur Cook A key operable locking mechanism
US6101855A (en) * 1998-09-08 2000-08-15 Strattec Security Corporation Key and cylinder lock system
EP1503010A1 (de) * 2003-07-28 2005-02-02 BKS GmbH Schlüssel, Schlüsselrohling und Profilzylinder mit Schlüssel
US20060225471A1 (en) * 2005-02-08 2006-10-12 Fernandez Juan A Cylinder lock assembly
US20080011027A1 (en) * 2004-04-28 2008-01-17 Yu Chun T Padlock
US20080047310A1 (en) * 2006-08-24 2008-02-28 Chun Te Yu Lock core operable by either of two keys
US7392677B1 (en) * 2007-01-23 2008-07-01 Porter Lock Co., Ltd. Lock core structure
FR2933727A1 (fr) * 2008-07-09 2010-01-15 Emka France Cle plate pour serrure conventionnelle
US20100300164A1 (en) * 2009-05-27 2010-12-02 Cheng-Ju Yang Wafer-type Tumbler Cylinder
US20110289990A1 (en) * 2010-05-31 2011-12-01 C. Ed. Schulte Gesellschaft Mit Beschrankter Haftung Zylinderschlossfabrik Method for profiling a flat reversible key, and flat reversible key, based on a flat reversible key profile, which is produced according to the method
US20150075237A1 (en) * 2012-04-25 2015-03-19 Kabushiki Kaisha Honda Lock Cylinder lock
US9181729B2 (en) * 2010-09-07 2015-11-10 Sankyo Kinzoku Co., Ltd. Lock kit and key rotor housed in rotor case

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2533494C3 (de) * 1975-07-26 1980-01-10 Scovill Sicherheitseinrichtungen Gmbh, 5620 Velbert SchlieBzylinder mit Stiftzuhaltungen und Schlüssel
DE2742165C2 (de) * 1977-09-20 1984-10-25 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Schließvorrichtung mit Schließzylinder und Flachschlüssel
DE2745747C3 (de) * 1977-10-11 1982-02-25 Kolb Gmbh & Co, 8065 Erdweg Zylinderkern mit Wendeschlüssel für ein Zylinderschloß
DE2824809C3 (de) * 1978-06-06 1981-08-20 Kolb Gmbh & Co, 8065 Erdweg Zylinderkern für ein Zylinderschloß
DE3212193C2 (de) * 1982-04-01 1985-04-11 Tibbe KG, 8065 Erdweg Schließzylinder, insbesondere für Kraftfahrzeug-Lenkschlösser

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030836A (en) * 1934-03-12 1936-02-11 Dudley Lock Corp Lock
US2155440A (en) * 1937-03-25 1939-04-25 Automatic Instr Company Lock
US3264852A (en) * 1964-01-29 1966-08-09 A & R Wiedemar Cylinder lock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030836A (en) * 1934-03-12 1936-02-11 Dudley Lock Corp Lock
US2155440A (en) * 1937-03-25 1939-04-25 Automatic Instr Company Lock
US3264852A (en) * 1964-01-29 1966-08-09 A & R Wiedemar Cylinder lock

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861181A (en) * 1972-04-22 1975-01-21 Wilmot Breeden Ltd Keys
US3969915A (en) * 1973-09-29 1976-07-20 Volkswagenwerk Aktiengesellschaft Lock
US4069693A (en) * 1974-12-26 1978-01-24 Spalding George T Cylinder lock assembly
US5174141A (en) * 1989-11-10 1992-12-29 Kabushiki Kaisha Tokai Rika Denki Seisakusho Cylinder lock
AU672303B2 (en) * 1994-07-01 1996-09-26 Brian Arthur Cook A key operable locking mechanism
US6101855A (en) * 1998-09-08 2000-08-15 Strattec Security Corporation Key and cylinder lock system
US6109081A (en) * 1998-09-08 2000-08-29 Strattec Security Corporation Key and cylinder lock system
EP1503010A1 (de) * 2003-07-28 2005-02-02 BKS GmbH Schlüssel, Schlüsselrohling und Profilzylinder mit Schlüssel
US20080011027A1 (en) * 2004-04-28 2008-01-17 Yu Chun T Padlock
US7360382B2 (en) * 2005-02-08 2008-04-22 Huf North America Parts Mfg. Corp. Cylinder lock assembly
US20060225471A1 (en) * 2005-02-08 2006-10-12 Fernandez Juan A Cylinder lock assembly
US20080047310A1 (en) * 2006-08-24 2008-02-28 Chun Te Yu Lock core operable by either of two keys
US7392677B1 (en) * 2007-01-23 2008-07-01 Porter Lock Co., Ltd. Lock core structure
US20080173051A1 (en) * 2007-01-23 2008-07-24 Porter Lock Co., Ltd. Lock core structure
FR2933727A1 (fr) * 2008-07-09 2010-01-15 Emka France Cle plate pour serrure conventionnelle
US20100300164A1 (en) * 2009-05-27 2010-12-02 Cheng-Ju Yang Wafer-type Tumbler Cylinder
US7980105B2 (en) * 2009-05-27 2011-07-19 Cheng-Ju Yang Wafer-type tumbler cylinder
US20110289990A1 (en) * 2010-05-31 2011-12-01 C. Ed. Schulte Gesellschaft Mit Beschrankter Haftung Zylinderschlossfabrik Method for profiling a flat reversible key, and flat reversible key, based on a flat reversible key profile, which is produced according to the method
US8919160B2 (en) * 2010-05-31 2014-12-30 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschloßfabrik Method for profiling a flat reversible key, and flat reversible key, based on a flat reversible key profile, which is produced according to the method
US9181729B2 (en) * 2010-09-07 2015-11-10 Sankyo Kinzoku Co., Ltd. Lock kit and key rotor housed in rotor case
US20150075237A1 (en) * 2012-04-25 2015-03-19 Kabushiki Kaisha Honda Lock Cylinder lock

Also Published As

Publication number Publication date
AT301381B (de) 1972-09-11
DE1957642A1 (de) 1971-09-02
SE382488B (sv) 1976-02-02
NL7015841A (enExample) 1971-05-19
GB1282969A (en) 1972-07-26
FR2069499A5 (enExample) 1971-09-03

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