US3745798A - Multi digit dial lock - Google Patents

Multi digit dial lock Download PDF

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Publication number
US3745798A
US3745798A US00202523A US3745798DA US3745798A US 3745798 A US3745798 A US 3745798A US 00202523 A US00202523 A US 00202523A US 3745798D A US3745798D A US 3745798DA US 3745798 A US3745798 A US 3745798A
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US
United States
Prior art keywords
lock
digit
toothed wheel
toothed
code
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
US00202523A
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English (en)
Inventor
G Pieddeloup
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Individual
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3745798A publication Critical patent/US3745798A/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
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/0044—Permutation or combination locks; Puzzle locks with telephone-type dial
    • 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
    • Y10T70/7271—Associated movable operator
    • 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

Definitions

  • ABSTRACT A muIti-digit dial lock comprising a number of toothed lll. 70/:ggb7g/73/53 wheels corresponding to the number digits Ofa code 58] Fie'm 286 299 and means for successively rotating each toothed wheel to a predetermined angular position. When all the 70/301 T 9 toothed wheels are positioned at such predetermined Cited angular position, the lock opens automatically.
  • the present invention is an improvement over the device of the above patent in that the toothed wheels themselves are used as coded cams and in that positioning levers for such toothed wheels replace the abovementioned levers thus simplifying the mechanism of the device and lowering the thickness of the mechanism associated with each digit of the code.
  • the multi-digit dial in accordance with the invention thus comprises a number of toothed wheels corresponding to the number of digits of the code, and" means for successively rotating each toothed wheel to a predetermined angular position. When each toothed wheel is positioned at such angular position, the lock opens itself automatically.
  • the means for successively rotating the toothed wheels may include a dial of the telephone type, a disc secured to the dial and operated in a predetermined direction for successively dialing the digits of the code, a spring biasing the disc to a rest position, and a finger engaging a notch in the disc for stopping the return movement of the disc at the rest position.
  • a finger is associated with each toothed wheel and has one end thereof adapted to engage the teeth of the toothed wheel to hold the same at the predetermined angular position.
  • the fingers are pivotally mounted on a shaft and the coded digit of each toothed wheel is formed by one tooth which is less deep than the others.
  • the other end of the fingers are provided with L- shaped slots through which may pass a spring biased bar which is used for automatically opening the look.
  • the means for successively rotating each toothed wheel further comprises an indexing member which is secured at a predetermined angular position with respect to the above-mentioned coded tooth but is slidable radially, and a rod secured to the disc and movable around the outer periphery of the toothed wheels.
  • a spring normally'biases the indexing member out of engagement with the rod but an abutment member is pro- 'vided for successively operating the following indexing member when dialing each digit so as to cause the indexing member to be engaged by the rod for permitting dialing of the next digit.
  • the toothed wheels are rotatably mounted on a shaft and spring means are provided for biasing the toothed wheels back to a rest position against a notch in the abutment member.
  • the angular position of the indexing member on the toothed wheels may be varied with respect to the above-mentioned coded tooth to change the code.
  • Means are also provided for resetting the lock into its rest position prior to dialing the coded digit or during coding thereof if a mistake has been made.
  • FIG. 1 illustrates a schematic perspective exploded view of a multi-digit dial lock in accordance with the invention
  • FIGS. 2 to 5 illustrate section views through FIG. 1 of the drawings for the purpose of showing the operation of the multi-digit dial lock.
  • a lock including a disc 10 secured to a dial 12 by means of a shaft 14.
  • Disc 10 is adapted to be operated in the direction indicated by arrow A by dial l2 and is biased to a rest position by a spring 16.
  • the return movement of disc 10 is stopped by a finger l8 pivotally mounted on a shaft 20 and engaging a notch 22 in the disc.
  • the finger 18 is biased against the outer periphery of the disc 10 by means of a spring 24.
  • the finger 18 is provided with an inverted L-shaped slot 26 through which passes a bar 28 which controls the unlocking of the lock. It will be easily seen, more particularly with reference to FIG.
  • the disc 10 is provided with a driving rod 30 which is arranged to rotate around the periphery of a number of toothed wheels 32 which are rotatably mounted on a shaft 36.
  • the number of toothed wheels corresponds to the number of digits of the code and may, in principle, be unlimited.
  • each digit of the code depends on the number of teeth 38 of the toothed wheels 32. In the example illustrated, there are eleven possible values for each digit of the code, the 12th position being the rest position.
  • the teeth of each toothed wheel are engaged by fingers 40 which rotate around shaft 20 and are biased against the teeth of the toothed wheels by spring 42.
  • Each toothed wheel is. driven by rod 30 through an arrangement including a rod 44 passing through a hole 45 in the toothed wheel and an indexing member 46 when moved into a downward position by an abutment member 48 bearing against a rod 47 secured to the indexing member.
  • the indexing member 46 is moved downwardly against the biasing force of a spring 50 whereas abutment member 48 is biased counterclockwise by means of a spring 51.
  • the toothed wheels 32 are biased into a rest position by means of a spring 52 illustrated schematically and enclosed in a cage 54 secured toshaft 36 and rotatably mounted on rod 44.
  • each abutment member has a notch 56 therein for receiving rod 44 in the rest position and so stop the counterclockwise rotation of the toothed wheels under the action of springs 52. It will also be noted however that notch 56 of the abutment member 48 adjacent to disc 14 is of no use, the function of such first abutment member being only to maintain its adjacent indexing member 46 in a downward position against rod 30 in the rest position so as to permit rod 30 to drive the first toothed wheel 32.
  • the tooth corresponding to the opening code of the lock is not as deep as the other teeth as illustrated by tooth No. 2 of the first toothed wheel and tooth No. 6 of the second toothed wheel.
  • the end of levers 40 which is remote from the toothed wheels 32 is provided with L-shaped slots 58. It will therefore be noted that when the lever 40 rests into a deep tooth 38, as illustrated in FIG. 3, the unlocking bar 28 is in the vertical portion of the L-shaped slot 58 and, consequently, the unlocking bar 28 cannot move to the right to open the lock. On the contrary, when the lever 40 engages a tooth corresponding to the predetermined code, such as illustrated in FIG. 4, the unlocking bar 28 will be permitted to slide into the bottom portion of the L-shaped slot 58 to open the lock.
  • toothed wheels are provided with a number of holes 45 therein and that the code may be changed at will by removing rod 44 from a hole 45 and positioning it into another hole.
  • a lever 60 is coupled with unlocking bar 28 and is provided for rotating levers 40 counterclockwise to free all the toothed wheels. This lever 60 is provided for resetting the lock to a rest position prior to dialing the code or when an error is made in the process of dialing.
  • the indexing member 46 will thus move in the direction of arrow B so as to permit rod 30 to bypass the indexing member 46 if the second digit member of the code is a higher number.
  • the toothed wheel will be maintained at that position by lever 40 while the rod 30 returns to its rest position.
  • the rod 44 which is resting in slot 56 of the second abutment member 48, as illustrated in FIG. 1, goes out of the slot 56.
  • Such second abutment member 48 will thus be pennitted to move downwardly, as indicated by arrow C in FIG. 4, so as to drive indexing member 46 downwardly to cause notch 62 thereof to be engaged by rod 30.
  • the rod 30 returns to its rest position, as illustrated in FIG.
  • the device in accordance with the invention may be used in every case where a bolt or a key lock is used and more particularly when doors or other devices are reserved to predetermined users. Particular applications may be made for the opening of doors, covers, or for the controlling of electrical devices.
  • a multi-digit dial lock comprising: a number of toothed wheels corresponding to the number of digits of a code; means for successively rotating each toothed wheel to a predetermined angular position; means responsive to the positioning of each toothed wheel at said predetermined angular position for unlocking the lock, said means including a dial of the telephone type; a disc secured to said dial and operated in a predetermined direction for successively dialing the digits of a code; a spring biasing said disc back to a rest position, and a finger engaging a notch in said disc for stopping the return movement of said dial at said rest position.
  • a multi-digit dial lock as defined in claim 3, wherein said means for successively rotating each toothed wheel further comprises an indexing member which is secured at a predetermined angular position with respect to said one tooth but is slidable radially a rod secured to said disc and which is movable around the outer periphery of said toothed wheels, and an abutment member for engaging said indexing member with said rod so as to permit said rod to dial the following digit upon return thereof to its rest position.

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  • Lock And Its Accessories (AREA)
  • Toys (AREA)
US00202523A 1970-11-26 1971-11-26 Multi digit dial lock Expired - Lifetime US3745798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7042465A FR2115601A5 (enrdf_load_stackoverflow) 1970-11-26 1970-11-26

Publications (1)

Publication Number Publication Date
US3745798A true US3745798A (en) 1973-07-17

Family

ID=9064750

Family Applications (1)

Application Number Title Priority Date Filing Date
US00202523A Expired - Lifetime US3745798A (en) 1970-11-26 1971-11-26 Multi digit dial lock

Country Status (7)

Country Link
US (1) US3745798A (enrdf_load_stackoverflow)
BE (1) BE775783A (enrdf_load_stackoverflow)
CA (1) CA960056A (enrdf_load_stackoverflow)
DE (1) DE2158368A1 (enrdf_load_stackoverflow)
FR (1) FR2115601A5 (enrdf_load_stackoverflow)
GB (1) GB1375714A (enrdf_load_stackoverflow)
IT (1) IT946084B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048823A (en) * 1976-04-02 1977-09-20 Janos Szova Combination lock
US4732020A (en) * 1983-08-16 1988-03-22 Pieddeloup Georges R Bolt with interchangeable coded informations
US5159333A (en) * 1988-08-16 1992-10-27 Raymond Engineering Inc. Secure code operated device
US10591322B2 (en) * 2015-06-26 2020-03-17 Jinan Richnes Electronic Co.Ltd Through-beam multi-digit dry meter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048823A (en) * 1976-04-02 1977-09-20 Janos Szova Combination lock
US4732020A (en) * 1983-08-16 1988-03-22 Pieddeloup Georges R Bolt with interchangeable coded informations
US5159333A (en) * 1988-08-16 1992-10-27 Raymond Engineering Inc. Secure code operated device
US10591322B2 (en) * 2015-06-26 2020-03-17 Jinan Richnes Electronic Co.Ltd Through-beam multi-digit dry meter

Also Published As

Publication number Publication date
IT946084B (it) 1973-05-21
CA960056A (en) 1974-12-31
DE2158368A1 (de) 1972-06-08
BE775783A (fr) 1972-03-16
GB1375714A (enrdf_load_stackoverflow) 1974-11-27
FR2115601A5 (enrdf_load_stackoverflow) 1972-07-07

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