US3681956A - Middle plate in a cylinder lock - Google Patents

Middle plate in a cylinder lock Download PDF

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Publication number
US3681956A
US3681956A US88702A US3681956DA US3681956A US 3681956 A US3681956 A US 3681956A US 88702 A US88702 A US 88702A US 3681956D A US3681956D A US 3681956DA US 3681956 A US3681956 A US 3681956A
Authority
US
United States
Prior art keywords
lock
plates
cylinder
detent
middle plate
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
US88702A
Other languages
English (en)
Inventor
Armas Kalvero Niilola
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 US3681956A publication Critical patent/US3681956A/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
    • E05B21/066—Cylinder locks, e.g. protector locks of the rotary-disc tumbler 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
    • Y10T70/7627—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
    • Y10T70/7695—Plate

Definitions

  • Cylinder lock means in this description a lock, where the case of the lock body comprises a cylinder and in this detent plates, turnable by a key, and, supported by these, middle plates. By turning the key, the detent plates turn to an opening position and to a locking position.
  • the middle plates do not take part in the turning movements of the detent plates, on the contrary, they remain in their position with reference to the cylinder. The purpose of the middle plates is that the turning of the detent plates is actuated only by the key and not by the turning of the adjacent detent plate.
  • middle plates Another purpose of the middle plates is to keep the plate pile in axial direction under appropriate pressure so that the detent plates stay in their place when the keyhas been drawn out from the lock. Therefore the middle plates have been made springlike, by giving them a convex disk-like shape and by making them for example of spring bronze.
  • FIG. 1 shows the lock with inserted key in longitudinal section.
  • FIG. 2 shows a crosscut along the line 2-2 in FIG. 1.
  • FIG. 3 shows a crosscut along the line 3--3 in FIG. 1.
  • FIG. 4 shows a middle plate according to the invention, seen in the axial direction of the lock.
  • FIG. 5 shows a projection of the middle plate along the line 5-5 in FIG. 4.
  • the embodiment illustrated by the drawing refers to a so-called cylinder lock, where the cylinder case of the lock body 1 contains a cylinder 2 and in this detent plates 4, turnable by the key 3, and, supported by these detent plates, middle plates 5.
  • a cylinder lock is previously known.
  • the lock is opened and locked by turning the key 3 in one or another direction, whereat the key turns the detent plates 4.
  • the middle plates 5 do not take part in this turning, due to the fact that the part 7 of the peripherical sector is situated in a section of the cylinder 2.
  • the middle plate 5 springlike, by giving it a shape of a cup and by making the middle plate of elastic material, as spring bronze.
  • a middle plate according to the invention involves the fact that the opening 8 in the middle plate is larger than in the known middle plates.
  • the opening 8 stretches outward at the peripherical sector 7, as shown by the reference number 9 in Fig. 4.
  • a lock comprising a lock body, a lock cylinder in the lock body, a plurality of detent plates in the lock cylinder and movable by a key inserted into the lock cylinder, and plates supported by, and intermediate, adjacent ones of the detent plates, each of the intermediate plates comprising a portion located in a sector cam on the outer periphery thereof and being pressed outward from the plane thereof to keep the detent plates in their place.
  • each intermediate plate defines a central opening having an enlarged part adjacent the peripheral cam.

Landscapes

  • Lock And Its Accessories (AREA)
US88702A 1969-11-17 1970-11-12 Middle plate in a cylinder lock Expired - Lifetime US3681956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15729/69A SE333521B (sv) 1969-11-17 1969-11-17

Publications (1)

Publication Number Publication Date
US3681956A true US3681956A (en) 1972-08-08

Family

ID=20301132

Family Applications (1)

Application Number Title Priority Date Filing Date
US88702A Expired - Lifetime US3681956A (en) 1969-11-17 1970-11-12 Middle plate in a cylinder lock

Country Status (4)

Country Link
US (1) US3681956A (sv)
DE (1) DE2038358A1 (sv)
FR (1) FR2069544A5 (sv)
SE (1) SE333521B (sv)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797290A (en) * 1971-07-28 1974-03-19 Ingersoll Locks Ltd Cylinder lock
US3821886A (en) * 1972-03-09 1974-07-02 W Ladewig Pick-proof locks
US3972210A (en) * 1974-09-27 1976-08-03 Oy Wartsila Ab Cylinder lock
US4067214A (en) * 1975-06-24 1978-01-10 Franz Kiraly Safety lock
US4083212A (en) * 1977-05-16 1978-04-11 Sargent & Greenleaf, Inc. Rotary disc tumbler cylinder lock
EP0864715A1 (de) * 1997-03-14 1998-09-16 IKON AKTIENGESELLSCHAFT Präzisionstechnik Schliesszylinder
JP2012207523A (ja) * 2011-03-29 2012-10-25 Abus August Bremicker Soehne Kg ロックシリンダ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI68290C (fi) * 1976-10-04 1985-08-12 Waertsilae Oy Ab Nyckelprofil- och laossystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI22581A (fi) * 1947-02-07 1947-12-17 Tiirikoimaton varmuuslukko
CH266856A (de) * 1948-02-07 1950-02-28 Erkki Salmivuori Johannes Sicherheitsschloss.
FI25706A (fi) * 1948-11-03 1952-04-10 Waertsilae Yhtymae Oy Sylinterilukon haittalevy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI22581A (fi) * 1947-02-07 1947-12-17 Tiirikoimaton varmuuslukko
CH266856A (de) * 1948-02-07 1950-02-28 Erkki Salmivuori Johannes Sicherheitsschloss.
FI25706A (fi) * 1948-11-03 1952-04-10 Waertsilae Yhtymae Oy Sylinterilukon haittalevy

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797290A (en) * 1971-07-28 1974-03-19 Ingersoll Locks Ltd Cylinder lock
US3821886A (en) * 1972-03-09 1974-07-02 W Ladewig Pick-proof locks
US3972210A (en) * 1974-09-27 1976-08-03 Oy Wartsila Ab Cylinder lock
US4067214A (en) * 1975-06-24 1978-01-10 Franz Kiraly Safety lock
US4083212A (en) * 1977-05-16 1978-04-11 Sargent & Greenleaf, Inc. Rotary disc tumbler cylinder lock
EP0864715A1 (de) * 1997-03-14 1998-09-16 IKON AKTIENGESELLSCHAFT Präzisionstechnik Schliesszylinder
JP2012207523A (ja) * 2011-03-29 2012-10-25 Abus August Bremicker Soehne Kg ロックシリンダ

Also Published As

Publication number Publication date
DE2038358A1 (de) 1971-05-27
FR2069544A5 (sv) 1971-09-03
SE333521B (sv) 1971-03-15

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