US3548620A - Cam type disc cylinder lock - Google Patents

Cam type disc cylinder lock Download PDF

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Publication number
US3548620A
US3548620A US3548620DA US3548620A US 3548620 A US3548620 A US 3548620A US 3548620D A US3548620D A US 3548620DA US 3548620 A US3548620 A US 3548620A
Authority
US
United States
Prior art keywords
cam
plug
transmission
key
lock
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
Joseph M Genakis
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3548620A publication Critical patent/US3548620A/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
    • E05B21/06—Cylinder locks, e.g. protector locks
    • 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
    • Y10T70/7554—Cylinder type with auxiliary tumblers or wards
    • 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
    • Y10T70/7605—Pin tumblers
    • 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
    • Y10T70/7627—Rotary or swinging tumblers
    • Y10T70/7633—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
    • 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
    • Y10T70/7915—Tampering prevention or attack defeating
    • Y10T70/7932—Anti-pick
    • Y10T70/7944—Guard tumbler

Definitions

  • the lock parts are housed within a cylinder which can be applied to a mortise assembly or to the shell of a knob and in other ways and it has at its forward end a plate having a rotary plug therein with a slot for accepting a key.
  • a cylinder which can be applied to a mortise assembly or to the shell of a knob and in other ways and it has at its forward end a plate having a rotary plug therein with a slot for accepting a key.
  • the plug there are a series of independently movable shoes which are actuated by the wards of the key, the key translating motion to the shoes to make contact with the cam surfaces of a series of cam ovals, there being one of these cam surfaces for each shoe.
  • the cam ovals are relatively turned as the key plug turns under influence of the key, and this in turn rotates a series of setting discs, attached to the cam ovals each of which is provided with a series of shallow and one or more deep notches in its edges. The deep notches must align prior to operation of the lock.
  • a pivoted selector is forced by means of a transmission into the combined aligned notches, and this action causes a dog on the transmission to move into a recess in the plug. Unless the notches are thus aligned, the selector will not push the dog to lock the plug and transmission together.
  • Reverse rotation of the key then causes the now latched transmission to e.g. thrust a bolt home, or to operate a ratchet, etc.
  • FIG. 1 is an exploded perspective view showing the parts of the lock
  • FIG. 2 is a view in elevation illustrating a cam oval
  • FIG. 3 is a sectional perspective view through the housing for the lock
  • FIG. 4 illustrates the locking dog on the transmission device in locking position
  • FIG. 5 is an exploded view on an enlarged scale illustrating the equalizer assembly for the transmission device
  • FIG. 6 illustrates an attachment for the lock
  • FIG. 7 is a section through the lock
  • FIGS. 8, 9, 10 and 11 are views illustrating the action of the transmission device, the keyway, and the dog lock for the transmission and the plug; parts being omitted;
  • FIG. 12 is a top plan view of the retaining lock ring assembly
  • FIG. 13 is a front view of a lock ring and cam oval; I FIG. 14 is an enlarged section through the plug showing a cam;
  • FIG. 15 is a front view of a lock ring, looking in the direction of arrow 15, FIG. 12, and
  • FIG. 16 is a view in side elevation of the lock ring assembly of FIG. 12.
  • a cylinder 10 is provided to house the locking parts, this cylinder being generally hollow and being provided with a forward plate 10a, FIG. 3, to accept and carry a plug 12, this plug being rotated by means of the key and having an end to end key slot for this purpose.
  • the housing 10 is provided with a pair of slots at 14 for the reception of cars 16, 16 on a series of retarding assembly (or retaining lock ring) generally indicated at 18, the parts being held together by means of conventional snap rings or the like, see FIG. 15.
  • Each retarder assembly 18 is provided with a central opening 20 which receives the plug 12 surrounded by a floor 22 and a flange 24, for the reception of a cam oval 26 which has the cam surface as at 28 therein.
  • a ball 32 which may be in the nature of a ball-bearing, and a cam shoe 34 associated with the plug, there being a series of assemblies of this nature arranged on the plug.
  • the ball may be pinched into the shoe.
  • the shoe 34 has an arcuate surface at 36 which is adapted to bear against the cam 28 when the respective ball is elevated by means of the key.
  • Each cam oval is provided with a setting disc 40, these setting discs each being provided with various shallow notches 42, etc., which may be of various widths, etc., and a deep notch 43.
  • a rod-like device which may be termed a selector 44.
  • This has a radial latch 46 on it and an underlying longitudinal member 48 of less radial extent. Normally latch 46 will ride in a trailing manner on the surface of the transmission 60, but when the correct notches 43 are aligned to accept longitudinal member 48, the selector is fixed in position relative thereto.
  • the selector 44 is located in a recess 50 in the housing made for the purpose, and held therein at its ends.
  • a locking disc 51 having a groove 52 and spring type retainer 53, the latter having an aligning ear 54 which may be received in a notch at 56 to hold the same from turning, and mounted on the plug after the locking and retaining disc 51 is the transmission element generally indicated at 60.
  • This transmission 60 is perhaps best shown in FIGS. 1, 4 and 8 to 11. It has a pivoted dog 62 yieldingly held in either of two positions by means of a spring detent 64a acting on notches in one end 64 thereof, FIG. 4, the other end having a downturned portion 63.
  • the end 64 is for engagement in one groove or the other, 68, 71 in the plug 12, for the purpose of locking the transmission 60 with respect to the plug.
  • the grooves 68 and 71 are alike but for individual use for right or left hand motion of the lock operation or cycle. The lock is completely reversible.
  • the transmission can thus be used to slide a bolt, ratchet, or some other locking means, not shown, in a specified direction that either locks it or unlocks it, depending on the subsequent motion of the key.
  • Slot 71 in plug 12, FIG. 1 is used to receive the end 64 of dog 62 when the lock parts are reversed.
  • a cancelling mechanism 82 is set to protruding relation to force the end 63 of the dog 62 in a direction to withdraw the toe thereof from engagement with the plug, thereby releasing the latter from the transmission 60.
  • the retarder cars 16 contain spring detents and 17. Thus this element acts as a detent when one of them is in contact with shoulder 19 and as a brake during the remainder of the cycle.
  • One ear also acts as a positive stop for the entire cam when the plug is being returned to its original position, see FIG. 12.
  • the plug has a pin tumbler mechanism at 90 and 90a which insures the return of the transmission to original or starting position. The key cannot be extracted unless returned to its original position.
  • the novel lock can be keyed for individual or master key combinations. When changing the key, the discs are replaced.
  • a pin tumbler assembly is used to insure the return of the plug to its starting position. This is necessary in conjunction with the cancelling out feature of the dog in the transmission when commencing a new cycle, assuming the correct key was used in opening and closing cycles.
  • a cam type disc cylinder lock comprising a housing, a selector mounted internally with respect to said housing, a key plug mounted in said housing for reception of and turning by a key, a series of cam ovals on the plug, a cam surface on each oval, a setting disc for each cam oval also mounted on the plug, each setting disc being provided with a series of notches in the periphery thereof, a movable cam shoe for each cam oval for selective impingement on the cam surface thereof.
  • the key being arranged to engage and move the cam shoes into engagement with the cam surfaces on the individual cam ovals for turning the latter and the discs for alignment of certain of said notches on said discs,
  • a transmission said transmission being mounted to turn on said plug, and means providing for interengagement between the transmission and the plug, said transmission having a notch receiving the operative member of the selector only when the notches on said setting discs are correctly aligned, whereby the transmission may then be turned by means of the plug under influence of the key, and means on said transmission for moving a member for locking and unlocking under influence of the key.
  • interengaging means comprises a dog pivoted on the transmission and having a portion engageable by the opertive member of said selector for forcing the dog into engagement with the plug when the selector operative member is received in the notch in the transmission.
  • interengaging means comprises a dog pivoted on the transmission and having a portion engageable by the operative member of said selector for forcing the dog into engagement with the plug when the selector operative member is received in the notch in the transmission, and a cancelling mechanism for retracting the dog from the plug upon a certain predetermined manipulation of the key.
  • interengaging means comprises a dog pivoted on the transmission and having a portion engageable by the operative member of said selector for forcing the dog into engagement with the plug when the selector operative member is received in the notch in the transmission, and a cancelling mechanism for retracting the dog from the plug upon a certain predetermined manipulation of the key, said cancelling mechanism being mounted between the transmission and the nearest adjacent disc.
  • interengaging means comprises a dog pivoted on the transmission and having a portion engageable by the operative member of said selector for forcing the dog into engagement with the plug when the selector operative member is received in the notch in the transmission, and a cancelling mechanism for retracting the dog from the plug upon a certain predetermined manipulation of the key, said cancelling mechanism being mounted between the transmission and the nearest adjacent disc, and means to activate and deactivate the cancelling mechanism at certain points in the turning of the key through a complete cycle.
  • the cam type disc cylinder lock of claim 1 including a retarder ring mounted on said plug, said retarder ring having a peripheral flange for the reception of a cam oval, there being a retarder ring for each cam oval, and means on the flange for engaging certain portions of the periphery of the cam ovals for retarding the rotary motion thereof.
  • each cam shoe is radially movable relative to the plug under influence of the key and each shoe includes a ball mounted thereon for engagement by the wards of the key.

Landscapes

  • Lock And Its Accessories (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
US3548620D 1969-01-06 1969-01-06 Cam type disc cylinder lock Expired - Lifetime US3548620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78931669A 1969-01-06 1969-01-06

Publications (1)

Publication Number Publication Date
US3548620A true US3548620A (en) 1970-12-22

Family

ID=25147270

Family Applications (1)

Application Number Title Priority Date Filing Date
US3548620D Expired - Lifetime US3548620A (en) 1969-01-06 1969-01-06 Cam type disc cylinder lock

Country Status (3)

Country Link
US (1) US3548620A (de)
DE (1) DE2000381A1 (de)
GB (1) GB1294364A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693384A (en) * 1970-08-25 1972-09-26 Joseph M Genakis Step cam disc cylinder lock
US4067214A (en) * 1975-06-24 1978-01-10 Franz Kiraly Safety lock
US4895036A (en) * 1984-10-15 1990-01-23 Supra Products, Inc. Key
US5592837A (en) * 1995-09-11 1997-01-14 Universal Lock Pick resistant lock
US6755062B2 (en) * 2002-05-23 2004-06-29 New Lock Security Company, Ltd. Anti-pick mogul deadlock
US20140041426A1 (en) * 2012-08-09 2014-02-13 Ingersoll-Rand Company Disc alignment mechanism
US20160186461A1 (en) * 2014-12-29 2016-06-30 ABUS August Bremicker Söhne KG Lock Cylinder
US10358842B2 (en) 2014-12-29 2019-07-23 ABUS August Bremicker Söhne KG Lock cylinder, key and key blank
US10480215B2 (en) 2012-08-09 2019-11-19 Schlage Lock Company Llc Hybrid lock cylinder
CN111101760A (zh) * 2019-12-16 2020-05-05 佛山市南海区美品五金电器有限公司 一种锁芯及锁具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015735A (en) * 1930-12-04 1935-10-01 Thomalla Theo Safety lock
US2613528A (en) * 1947-02-07 1952-10-14 Addo Ab Cylinder lock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015735A (en) * 1930-12-04 1935-10-01 Thomalla Theo Safety lock
US2613528A (en) * 1947-02-07 1952-10-14 Addo Ab Cylinder lock

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693384A (en) * 1970-08-25 1972-09-26 Joseph M Genakis Step cam disc cylinder lock
US4067214A (en) * 1975-06-24 1978-01-10 Franz Kiraly Safety lock
US4895036A (en) * 1984-10-15 1990-01-23 Supra Products, Inc. Key
US5592837A (en) * 1995-09-11 1997-01-14 Universal Lock Pick resistant lock
US6959570B2 (en) 2002-05-23 2005-11-01 New Security Lock Company, Ltd. Anti-pick mogul deadlock
US20040206143A1 (en) * 2002-05-23 2004-10-21 New Security Lock Company, Ltd Anti-pick mogul deadlock
US6755062B2 (en) * 2002-05-23 2004-06-29 New Lock Security Company, Ltd. Anti-pick mogul deadlock
US20140041426A1 (en) * 2012-08-09 2014-02-13 Ingersoll-Rand Company Disc alignment mechanism
US8881566B2 (en) * 2012-08-09 2014-11-11 Schlage Lock Company Llc Disc alignment mechanism
US9045916B2 (en) 2012-08-09 2015-06-02 Schlage Lock Company Llc Disc alignment mechanism
US10480215B2 (en) 2012-08-09 2019-11-19 Schlage Lock Company Llc Hybrid lock cylinder
US20160186461A1 (en) * 2014-12-29 2016-06-30 ABUS August Bremicker Söhne KG Lock Cylinder
US10006224B2 (en) * 2014-12-29 2018-06-26 ABUS August Bremicker Söhne KG Lock cylinder
US10358842B2 (en) 2014-12-29 2019-07-23 ABUS August Bremicker Söhne KG Lock cylinder, key and key blank
CN111101760A (zh) * 2019-12-16 2020-05-05 佛山市南海区美品五金电器有限公司 一种锁芯及锁具

Also Published As

Publication number Publication date
GB1294364A (en) 1972-10-25
DE2000381A1 (de) 1970-08-27

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