US3851507A - Combination lock - Google Patents

Combination lock Download PDF

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Publication number
US3851507A
US3851507A US00360029A US36002973A US3851507A US 3851507 A US3851507 A US 3851507A US 00360029 A US00360029 A US 00360029A US 36002973 A US36002973 A US 36002973A US 3851507 A US3851507 A US 3851507A
Authority
US
United States
Prior art keywords
ratchet
sleeve
dial
rotatable
rotatable ratchet
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
US00360029A
Other languages
English (en)
Inventor
C Gehrie
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.)
Kidde Inc
Presto Lock Co Inc
Original Assignee
Presto Lock Co Inc
Walter Kidde and Co Inc
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 Presto Lock Co Inc, Walter Kidde and Co Inc filed Critical Presto Lock Co Inc
Priority to US00360029A priority Critical patent/US3851507A/en
Priority to DE2421997A priority patent/DE2421997A1/de
Priority to JP49052935A priority patent/JPS5015700A/ja
Application granted granted Critical
Publication of US3851507A publication Critical patent/US3851507A/en
Assigned to PRESTO LOCK, INC., A CORP. OF NJ reassignment PRESTO LOCK, INC., A CORP. OF NJ ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PRESTO LOCK COMPANY, DIVISION OF WALTER KIDDE & COMPANY, INC., A DE CORP.
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
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/12—Permutation or combination locks; Puzzle locks with tumbler discs on several axes
    • 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
    • Y10T70/7153—Combination
    • Y10T70/7181—Tumbler type
    • Y10T70/7198—Single tumbler set
    • Y10T70/7237—Rotary or swinging tumblers
    • Y10T70/726—Individually set
    • Y10T70/7305—Manually operable
    • 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
    • Y10T70/7153—Combination
    • Y10T70/7322—Permutation
    • Y10T70/7328—Compound tumblers

Definitions

  • ABSTRACT A combination lock is constructed which utilizes a ratchet action principle. A plurality of longitudinally spaced assemblies are cooperable with a manually operable latching slide member.
  • Each assembly is made up of a shaft, a non-rotatable ratchet member, a rotatable dial member, a rotatable ratchet and a sleeve.
  • the sleeve of each assembly has a radial slot.
  • the latching slide member has longitudinally spaced fingers adapted to be received in the radial slot of each sleeve when the fingers and slots are in alignment or when the lock is on combination.” When the lock is off combination a sleeve blocks movement of the slide member to maintain the device in locked condit1on.
  • the essential latching slide member is used to change the relationship of a dial and its respective sleeve to thereby enable one to select a combination of ones own secret choice.
  • Combination locks of the type which permit the selection of a combination of ones own secret choice employ a lever or similar element to enable the separation of sleeves or the like from their respective dials so that the relationship of the sleeves with respect to the dials may be changed.
  • the presence of the lever or a like element seems to invite tampering. It has been found that prospective customers of equipment provided with combination locks, for example luggage or other containers or receptaclesfare tempted to manipulate the locks before becoming familiar with the written instructionswhich accompany the locks. As a result of the tampering, the on combination is lost.
  • the luggage case, receptacle or the like with the lock thereon must be returned to the manufacturer. In addition to the shipping charges, the manufacturer must bear the expense of trying to salvage the locks, if possible.
  • A' primary object of the invention is to overcome or eliminate the foregoing problem.
  • a combination lock made in accordance with the invention is constructed without a lever or any other visible part which may suggest that the lock is of the type which may have the combination set by the user. Only by reading the written instructions may one learn that it is possible to change or setthe combination to a combination of ones own secret choice, and then, how this may be accomplished.
  • Another object of the invention is to provide a combination lock with dials having indicia thereonwherein the dials have magnifying elements related thereto to enable one to very easily read the indicia.
  • a combination lock made in accordance with the invention comprises a plurality of longitudinally spaced assemblies.
  • Each assembly comprises a shaft, a nonrotatable ratchet member, a rotatable dial member, a rotatable ratchet and a sleeve.
  • the dial member has two series of teeth.
  • the rotatable ratchet has two series of teeth, one series being cooperable with the nonrotatable ratchet member and the other series being cooperable with a series of teeth of the dial member.
  • the sleeve has a series of teeth cooperable with the second series of teeth of the dial member.
  • the sleeve has a radial slot.
  • a spring acts to bias the non-rotatable ratchet member, the dial member, ratchet and the sleeve toward one another or into resilient assembled relationship.
  • a manually operable latching slide member is mounted for movement perpendicularly to the longitudinal axis of each of the assembly shafts.
  • the slide member has longitudinally spaced fingers adapted to be received in the radial slot of each sleeve when the lock is on combination), or when the fingers and slots are .in alignment. When the device is locked or off combination, a finger and a slot are out of alignment; the sleeve blocks movement of the latching slide member.
  • the latching slide member is formed for engagement with a hasp in its latched position.
  • the dial member which has the indicia or numbers 0 to 9 thereon, turns with the sleeve because these two components have their teeth in meshing engagement.
  • the latching slide member is manually held in unlatched position against the action of the spring which normally urges the slide member toward latched position.
  • the device is on combination" and the fingers of the latching slide member are held within the slots of the sleeves.
  • each dial may be rotated, or the teeth therof may be cammed with respect to the teeth of the sleeve to thereby change the relationship of the dial with respect to the sleeve.
  • the resilient connection of the dial and sleeve of each assembly which is furnished by the spring acting to urge the parts together, permits the camming action.
  • the combination change is effected from thereadily accessible top side of the lock, and it is accomplished without the inclusion of any element for this purpose.
  • the essential latching slide member is used to set the combination. It is essential that one actually read the written instructions in order to set the combination. Tampering is completely discouraged.
  • dial members' are each formed with the indicia positioned on a diameter other than the diameter which is engaged by the finger to rotate the dial, and such indicia are positioned for viewing through a window provided in the face plate of the-device.
  • a magnifying lens is positioned within each window, whereupon the indicia appear larger and are more easily seen.
  • FIG. 3 is a transverse vertical cross-sectional view taken approximately in the plane of line 3-3 of FIG.
  • FIG. 4 is a longitudinal vertical cross-sectional view taken approximately in the plane of line 4-4 of FIG.
  • FIG. 5 is a view similar to FIG. 4, this view showing the device in on combination or in unlatched and unlocked condition;
  • FIG. 7 is an end view of the dial member
  • FIG. 8 is an end view of the ratchet
  • FIG. 11 is a vertical cross sectional view taken approximately in the plane of line 11-11 of FIG. 7;
  • FIG. 12 is a vertical cross-sectional view taken approximately in the plane of line 12-12 of FIG. 8;
  • FIG. 13 is a vertical cross-sectional view taken approximately in the plane of line 1313 of FIG. 9;
  • FIG. 14 is a vertical cross-sectional view taken approximately in the plane of line 14-14 of FIG. and
  • FIG. 15 is a top plan of the latching slide member.
  • a combination lock A is cooperable with a hasp B.
  • the combination lock comprises a face plate member C secured to a back cover or frame D.
  • Each assembly comprises a shaft F, a non-rotatable ratchet member G, a rotatable dial member H, a rotatable ratchet .l, a sleeve K, and a spring L which acts to resilient maintain the nonrotatable ratchet member, dial member, ratchet and sleeve in assembled relationship.
  • the dial member H has two series of teeth 20 and 22, the teeth 22 are l0 in number and on a diameter which is larger than the diameter upon which the teeth 20 are situated.
  • the rotatable ratchet J (FIGS. 8 and 12) has two series of teeth 24 and 26.
  • the ratchet is in the nature of a ring having teeth on opposite sides.
  • One series of teeth is cooperable with the teeth 28 on the non-rotatable ratchet member G (FIGS. 10 and 14), and the other series of teeth is cooperable with the series of teeth 20 on the dial member H.
  • the sleeve K (FIGS. 9 and 13) has a series of 10 teeth 30 cooperable with the series of teeth 22 of the dial member H. Each sleeve has a radial slot 32.
  • a manually operable plug or latching slide member M is mounted for movement perpendicularly to the longitudinal axis of each of the assembly shafts F.
  • the latching slide member has longitudinally spaced fingers 34 adapted to be received in the radial slot 32 of each sleeve K when the fingers and slots are in alignment as shown in FIG. 5.
  • a sleeve blocks movement of the slide member, as shown in FIG. 4.
  • the latching slide member M is provided with longitudinally spaced notches 36 which are adapted to receive the spaced hook portions 38 of the hasp B when the device is in the latched condition shown in FIG. 4.
  • the combination lock includes three assemblies E.
  • the dial member H of each assembly is provided with indicia or numbers equidistantly spaced about its circumference with the numbers 0 to 9. Where, as illustrated, there are three assemblies, there are 1,000 different possible combinations available. It will be understood that any desired number of assemblies and associated dials may be used to furnish the desired number of combinations.
  • the face plate member C has a top plate portion 40.
  • the top plate portion has a plurality of aligned longitudinally spaced slots 42, one for each of dial member H of each assembly.
  • the top plate portion also is provided with a window 44 transversely spaced from each slot.
  • the face plate member is die cast so that the part may serve a plurality of functions with ease and economy of manufacture.
  • One of the functions of the face plate member is to provide integral spaced pins 46 which bear against ears 48 on each of the ratchet members G to render such members non-rotatable, as shown in FIGS. 4 and 5, while allowing these ratchet members to slide along their respective shafts F when setting the combination, as will be subsequently explained.
  • the non-rotatable ratchet member G is slidable on shaft F, and the non-rotatable ratchet member, dial member H, ratchet .l and sleeve K are related so that the spring L acts to urge the sleeve axially toward the dial member, the non-rotatable ratchet member axially toward the ratchet, and the rotatable ratchet axially toward the dial member.
  • the assembly of these components is preferably maintained in position by forming the face plate member C to furnish spaced bearings for the ends of the shaft F upon which these components are mounted. Accordingly, the face plate member is cast with the requisite number of pairs of opposite open bearings 50, as shown in FIGS. 2 and 6.
  • the frame member D is connected to the face plate member so that in their connection to one another the bearings for each of the shafts are closed or completed.
  • connection of the parts may be accomplished by providing the face plate member with integral connecting studs 52 near one end of the plate and a connecting stud 54 near the opposite end of the part.
  • the latter connecting stud may be extended through an opening 56 in the frame member and then headed over for the connection of the parts to one another.
  • the same kind of connection is made for the studs 52 (not shown).
  • such connections are used to maintain the desired spacing of the face plate portion 40 from the base of the frame member to provide the desired height of the cavity 18.
  • the underside of the top plate portion 40 may be provided with integral connecting studs on the central axis near the extremities of the face plate member so that the entire assembly or combination lock A may be secured to the wall W of a luggage case or the like or to a valance member by extending the connecting studs through aligned openings, and then heading over the ends of the studs, as shown in FIGS. 4 and 5.
  • the described arrangement of components furnishes a true stop position for each number on each dial member, together with a desirable audible clicking sound upon turning of the dial member.
  • the dial member H When the dial member H is rotated in one direction, the teeth 20 are engaged with the teeth of the rotatable ratchet J and the rotatable ratchet rotates with the dial member.
  • the teeth on the opposite side of the rotatable ratchet ride up and down over each tooth of the non-rotatable ratchet member G. There is a clicking sound at each drop, and at the same time, there is a positive stop position for each number and each tooth.
  • the ratchet teeth 20 on the dial member slip with respect to the teeth on the ratchet member, while the teeth of the non-rotating ratchet member and of the ratchet J remain solidly engaged and non-rotating;
  • the dial member and its associated sleeve member are rotatable because there is no direct connection between the dial member and the non-rotating ratchet member.
  • the magnifying lens is made of a clea r resin composition molded to furnish the magnifying property; for example, methyl methacrylate, a styrene compound or other resin composition which is capable of furnishing the magnifying function as known in the art.
  • the windows and the magnifying lenses may be omitted, whereby the numerals would be equidistantly positioned on the diameter 72 of the dial which extends partially out of each slot 42.
  • resilient means N biases or urges the latching slide member M toward latched position.
  • theresilient means is preferably in the form of a bent leaf spring having one end anchored in the face plate member C at 76 and the other end extended through an opening 78 in the latching slide member.
  • the slide member is provided with longitudinally spaced cut-outs 80 into which extend the fingers 34. The cut-outs allow the slide member to clear the assemblies E when the member is moved longitudinally between latched and unlatched positions. As best shown in FIG.
  • the slide member is guided at top and bottom by surfaces provided by the face plate member C and the frame member D and on the sides thereof by surfaces provided by the face plate member at 82 and surfaces 84 provided by the dial members H.
  • the latching slide member may be mounted to provide a dead bolt action, that is, to require manual movement from latched to unlatched position and vice-versa.
  • a puller 86 is positioned on the face plate member and connected to the latching slide member by means 88 extended through an opening 90 in the face plate member, as shown in FIGS. 4 and 5.
  • a slot 92 may also be provided in the non-rotatable ratchet member so that the fingers 34 have a deeper throw or movement, as shown in FIG. 5.
  • the combination may be changed to a combination of ones own secret choice. This is accomplished by grasping the puller and holding the puller in its unlatched position against the action of the spring N. In this position the fingers 34 are positioned within the radial slots 32 of the sleeves K. With the fingers thus. positioned and holding the sleeves, any of the dial members may be rotated with respect to their respective sleeves by a camming action of the teeth which are in engagement with oneanother. Such camming action is permitted because of the resilient connection afforded'by the spring L between the dial and the sleeve of each assembly.
  • the combination change is effected from the readily accessible top side of the lock and it is accomplished without the inclusion of any extraneous, element provided for this purpose.
  • the essential latching member is used to set the combination. One must read the written instructions in order to set the combination.
  • a combination lock comprising a plurality of Iongitudinally spaced assemblies, each assembly comprising a shaft, a non-rotatable ratchet member, a rotatable dial member having two series of teeth, a rotatable ratchet having two series of teeth, one series of teeth of the rotatable ratchet being cooperable with the nonrotatable ratchet member and the other series being cooperable with a series of teeth of the dial member, a sleeve having a series of teeth cooperable with the second series of teeth of the dial member, the sleeve having a radial slot, and a spring resiliently maintaining the non-rotatable ratchet member, dial member, ratchet and sleeve in assembled relationship, and a manually operable latching slide member mounted for movement perpendicularly to the longitudinal axis of each of said assembly shafts, the latching slide member having longitudinally spaced fingers adapted to be received in the radial slot of each sleeve
  • a combination lock according to claim 1 including a face plate member, the face plate member having a plurality of aligned longitudinally spaced slots, a window transversely spaced from each slot extending through the face plate member, the dial members each having a first diameter extending partially through the slots and formed to facilitate rotation of the member, the dial members each having a second and smaller diameter upon which indicia are located, the indicia being in alignment with the respective windows.
  • a combination lock according to claim 4 including a magnifying lens in each of the windows.
  • a combination lock according to claim 6 including a frame member connected to the face plate member, the face plate and frame members being formed to provide bearings for each of the shafts.
  • a combination lock according to claim 10 including a magnifying lens in each of the windows.

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  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Lock And Its Accessories (AREA)
US00360029A 1973-05-14 1973-05-14 Combination lock Expired - Lifetime US3851507A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00360029A US3851507A (en) 1973-05-14 1973-05-14 Combination lock
DE2421997A DE2421997A1 (de) 1973-05-14 1974-05-07 Kombinationsschloss
JP49052935A JPS5015700A (enrdf_load_stackoverflow) 1973-05-14 1974-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00360029A US3851507A (en) 1973-05-14 1973-05-14 Combination lock

Publications (1)

Publication Number Publication Date
US3851507A true US3851507A (en) 1974-12-03

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ID=23416304

Family Applications (1)

Application Number Title Priority Date Filing Date
US00360029A Expired - Lifetime US3851507A (en) 1973-05-14 1973-05-14 Combination lock

Country Status (3)

Country Link
US (1) US3851507A (enrdf_load_stackoverflow)
JP (1) JPS5015700A (enrdf_load_stackoverflow)
DE (1) DE2421997A1 (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114408A (en) * 1977-04-04 1978-09-19 Gee Victor L Gate lock and latch
US4249469A (en) * 1977-06-20 1981-02-10 Crado Devices Limited Safe having combination locking mechanisms
US4287734A (en) * 1977-05-18 1981-09-08 Herriott Leslie V Combination lock mechanism
US4385509A (en) * 1979-11-27 1983-05-31 S. Franzen Sohne (Gmbh & Co.) Permutation lock
US4462232A (en) * 1982-04-20 1984-07-31 Yang Gwo T Combination lock for luggage cases
US4519229A (en) * 1983-02-22 1985-05-28 Yang Yaw Kuen Combination lock
US4669286A (en) * 1985-12-09 1987-06-02 Cheng Ching Yuan Combination changing mechanism and combination lock used said mechanism
EP1256674A3 (de) * 2001-05-09 2003-02-26 Sudhaus GmbH & Co Zahlenschloss
US20040089032A1 (en) * 2002-09-04 2004-05-13 Ling Renny Tse-Haw Combination lock with dial displaying window
US20070137270A1 (en) * 2005-12-20 2007-06-21 Eric Lai Magnifying lens cover for combination padlocks
US20070251282A1 (en) * 2006-04-27 2007-11-01 Chien-Yung Huang Dial for a combination lock
US20090031764A1 (en) * 2007-07-31 2009-02-05 Chien-Yung Huang Padlock having an indicator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312498U (enrdf_load_stackoverflow) * 1976-07-14 1978-02-01
JPS5980054U (ja) * 1982-11-22 1984-05-30 株式会社たんぽぽ ダイヤルロツク
DE3927431A1 (de) * 1989-08-19 1991-02-21 Franzen Soehne S Permutationsschloss fuer koffer, taschen oder dergleichen
DE3927430A1 (de) * 1989-08-19 1991-02-21 Franzen Soehne S Permutationsschloss fuer koffer, taschen oder dergleichen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE272895C (enrdf_load_stackoverflow) *
US347618A (en) * 1886-08-17 Permutation-lock
US1763224A (en) * 1929-10-29 1930-06-10 Wired Radio Inc Frequency-adjusting means for high-frequency signaling systems
US1781510A (en) * 1928-06-29 1930-11-11 Sesamee Company Permutation lock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE272895C (enrdf_load_stackoverflow) *
US347618A (en) * 1886-08-17 Permutation-lock
US1781510A (en) * 1928-06-29 1930-11-11 Sesamee Company Permutation lock
US1763224A (en) * 1929-10-29 1930-06-10 Wired Radio Inc Frequency-adjusting means for high-frequency signaling systems

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114408A (en) * 1977-04-04 1978-09-19 Gee Victor L Gate lock and latch
US4287734A (en) * 1977-05-18 1981-09-08 Herriott Leslie V Combination lock mechanism
US4249469A (en) * 1977-06-20 1981-02-10 Crado Devices Limited Safe having combination locking mechanisms
US4385509A (en) * 1979-11-27 1983-05-31 S. Franzen Sohne (Gmbh & Co.) Permutation lock
US4462232A (en) * 1982-04-20 1984-07-31 Yang Gwo T Combination lock for luggage cases
US4519229A (en) * 1983-02-22 1985-05-28 Yang Yaw Kuen Combination lock
US4669286A (en) * 1985-12-09 1987-06-02 Cheng Ching Yuan Combination changing mechanism and combination lock used said mechanism
EP1256674A3 (de) * 2001-05-09 2003-02-26 Sudhaus GmbH & Co Zahlenschloss
US20040089032A1 (en) * 2002-09-04 2004-05-13 Ling Renny Tse-Haw Combination lock with dial displaying window
US6860126B2 (en) * 2002-09-04 2005-03-01 Renny Tse-Haw Ling Combination lock with dial displaying window
US20070137270A1 (en) * 2005-12-20 2007-06-21 Eric Lai Magnifying lens cover for combination padlocks
US7269985B2 (en) * 2005-12-20 2007-09-18 The Sun Lock Company Ltd. Magnifying lens cover for combination padlocks
US20070251282A1 (en) * 2006-04-27 2007-11-01 Chien-Yung Huang Dial for a combination lock
US7434430B2 (en) * 2006-04-27 2008-10-14 Chien-Yung Huang Dial for a combination lock
US20090031764A1 (en) * 2007-07-31 2009-02-05 Chien-Yung Huang Padlock having an indicator

Also Published As

Publication number Publication date
DE2421997A1 (de) 1974-11-28
JPS5015700A (enrdf_load_stackoverflow) 1975-02-19

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Date Code Title Description
AS Assignment

Owner name: PRESTO LOCK, INC., 100 OUTWATER LANE, GARFIELD, NJ

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PRESTO LOCK COMPANY, DIVISION OF WALTER KIDDE & COMPANY, INC., A DE CORP.;REEL/FRAME:004044/0374

Effective date: 19811201

Owner name: PRESTO LOCK, INC., A CORP. OF NJ, NEW JERSEY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PRESTO LOCK COMPANY, DIVISION OF WALTER KIDDE & COMPANY, INC., A DE CORP.;REEL/FRAME:004044/0374

Effective date: 19811201

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)