US3777521A - Tumbler plate lock - Google Patents

Tumbler plate lock Download PDF

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Publication number
US3777521A
US3777521A US00262878A US3777521DA US3777521A US 3777521 A US3777521 A US 3777521A US 00262878 A US00262878 A US 00262878A US 3777521D A US3777521D A US 3777521DA US 3777521 A US3777521 A US 3777521A
Authority
US
United States
Prior art keywords
tumbler
plate
lock
plates
core
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
US00262878A
Other languages
English (en)
Inventor
P Lipschutz
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.)
Valeo Neiman SA
Original Assignee
Societe dExploitation des Brevets Neiman SA
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 Societe dExploitation des Brevets Neiman SA filed Critical Societe dExploitation des Brevets Neiman SA
Application granted granted Critical
Publication of US3777521A publication Critical patent/US3777521A/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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0472—Made of rubber, plastics or the like
    • E05B2015/0479—Made of rubber, plastics or the like of elastic string type
    • 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 lock wherein a flat key acts on tumbler plates, slid able in a core, to slide these several plates in one direction while an elastic biasing element or return spring, surrounding the structure, urges them in the opposite direction.
  • the elastic element can directly contact a small boss on each tumbler plate. It urges each tumbler plate to return in the direction of the plates axis, thereby minimizing looseness of the core and tumbler structure.
  • Tumbler plate locks have encountered difficulty in connection with correct guidance of the tumbler plates.
  • Conventionally these plates have return springs. Because of the geometry of the lock these have been placed on the sides of the tumblers and have therefore produced an eccentric push which tended to rock the tumbler plate in the slide space provided for it, where some clearance always exists particularly after a large number of lock operations.
  • the conventional construction also had the effect that a lateral abutment was necessary for the return spring, on the tumbler plate, thereby reducing the length of its stroke, across the core of the lock.
  • FIG. 1 (prior art) is a cross section through the core of a convention lock
  • FIG. 2 is a generally similar section taken along lines 2--2 in FIG. 3, through a lock constructed according to the invention
  • FIG. 3 is a side view of the lock of FIG. 2;
  • FIG. 4 is a detail from FIG. 2, showing a tumbler plate in shifted potions
  • FIG. 5 is a perspective view of a tumbler for the lock of FIG. 2;
  • FIG. 6 is a perspective view of a modified lock according to the invention.
  • tumbler plate 1 As is shown in FIG. 1 with some exaggeration tumbler plate 1 is disposed in a diametric recess 1a of core 1b. A key hole 1c is provided in a central region of the plate. The key (not shown) acts on a lower surface 1d in the keyhole, whereby it urges plate 1 downwards,
  • Each new tumbler plate 1' has a lateral boss or heel 8, shown as a small tongue stuck out at from the stock of the plate, and elastic rings 4, surrounding suitable portions of the core, push inwardly against the outsides of bosses 8, on the tumbler plates, whereby these plates are urged into their normalpositions, not displaced by key or spring action.
  • each boss is located substantially at, or at least close to, the central axis A of key hole 10. As best shown in FIGS. 4 and 5, the boss is slightly displaced from this axis, whereby a slight lateral push, caused for example by rotary motion, can be compensated.
  • Elastic rings 4 can be replaced by a single, elastic spiral 12, as shown in FIG. 6.
  • tumbler plate 1' can have straight, uninterrupted sidewalls 9, l0, sliding along side walls 5', 6' of the tumbler recess in the core. Wear and tear between walls 9, 5' and 10, 6' is less likely and less concentrated than in FIG. 1, and when some of it occurs nevertheless it is less likely to cause tilting of plate 1 all this by virture of the new, centrally acting return spring 4 or 6.
  • Lock for a flat key comprising a core, tumbler plates therein, and spring means for returning the tumbler plates after displacement by the key, the spring means being of annular form, surrounding the tumbler plates and bearing on substantially central parts of ends of said plates, each plate having a boss, laterally extending from one of the substantially central parts, to be engaged by the spring means.
  • each boss comprises a small heel struck out of the plate.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Springs (AREA)
  • Closures For Containers (AREA)
US00262878A 1971-06-17 1972-06-14 Tumbler plate lock Expired - Lifetime US3777521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7122041A FR2142225A5 (cs) 1971-06-17 1971-06-17

Publications (1)

Publication Number Publication Date
US3777521A true US3777521A (en) 1973-12-11

Family

ID=9078826

Family Applications (1)

Application Number Title Priority Date Filing Date
US00262878A Expired - Lifetime US3777521A (en) 1971-06-17 1972-06-14 Tumbler plate lock

Country Status (10)

Country Link
US (1) US3777521A (cs)
JP (1) JPS5124960B1 (cs)
AR (1) AR193099A1 (cs)
CS (1) CS190368B2 (cs)
DE (1) DE2229096C3 (cs)
ES (1) ES404036A1 (cs)
FR (1) FR2142225A5 (cs)
GB (1) GB1338350A (cs)
IT (1) IT956597B (cs)
SU (1) SU494882A3 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682484A (en) * 1986-04-15 1987-07-28 Yeh Ching Hsuan Tumbler plate cylinder lock

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5362675A (en) * 1976-11-15 1978-06-05 Takinami Hisao Cars for purification and producing fertilizers
JPS53139871U (cs) * 1977-04-11 1978-11-06
JPS58146980U (ja) * 1982-03-30 1983-10-03 稲毛　邦善 分針歯車のスリツプ装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498035A (en) * 1923-05-29 1924-06-17 Yale & Towne Mfg Co Cylinder lock
CH248740A (de) * 1945-08-28 1947-05-31 Huber Max Sicherheitsschloss.
US2829513A (en) * 1952-05-20 1958-04-08 Mefina Sa Security locks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498035A (en) * 1923-05-29 1924-06-17 Yale & Towne Mfg Co Cylinder lock
CH248740A (de) * 1945-08-28 1947-05-31 Huber Max Sicherheitsschloss.
US2829513A (en) * 1952-05-20 1958-04-08 Mefina Sa Security locks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682484A (en) * 1986-04-15 1987-07-28 Yeh Ching Hsuan Tumbler plate cylinder lock

Also Published As

Publication number Publication date
AR193099A1 (es) 1973-03-30
CS190368B2 (en) 1979-05-31
DE2229096C3 (de) 1978-04-27
ES404036A1 (es) 1975-06-01
DE2229096A1 (de) 1972-12-21
DE2229096B2 (de) 1977-09-01
SU494882A3 (ru) 1975-12-05
GB1338350A (en) 1973-11-21
JPS5124960B1 (cs) 1976-07-28
IT956597B (it) 1973-10-10
FR2142225A5 (cs) 1973-01-26

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