US3895505A - Door lock - Google Patents

Door lock Download PDF

Info

Publication number
US3895505A
US3895505A US483686A US48368674A US3895505A US 3895505 A US3895505 A US 3895505A US 483686 A US483686 A US 483686A US 48368674 A US48368674 A US 48368674A US 3895505 A US3895505 A US 3895505A
Authority
US
United States
Prior art keywords
bolt
latch
reciprocal
locking bolt
key
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
US483686A
Other languages
English (en)
Inventor
Georg Wasserfaller
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 US3895505A publication Critical patent/US3895505A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1022—Rigid
    • Y10T292/1028—Sliding catch
    • 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
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5226—Combined dead bolt and latching bolt
    • Y10T70/5243—Manually dogged latch bolt

Definitions

  • a door lock has a latch and a bolt reciprocal between [21] Appl' 483686 open and locked positions and a key-operated lock 30 A P D cylinder for reciprocating the bolt between these posi- Forelgn pphcatlfm nomy ata tions.
  • a locking bolt may be depressed into a latch en- June 29, AUStI'la position for the latch in t o ed po 52 US. CL...
  • the present invention relates to improvements in door locks, and more particularly to locks which comprise a latch reciprocal between an open and locked position. a bolt reciprocal between an open and locked position, key-operable means for reciprocating the bolt between the locked and open position. and a locking mechanism including a locking bolt movable between a latch engaging position for holding the latch in the locked position and a position wherein the locking bolt is disengaged from the latch for permitting the latch to be reciprocated into the open position.
  • Door locks of this type have been used widely for the doors of hotel rooms, for instance, and a specific application thereof has been disclosed in Austrian Pat. No. 297,869. In such locks, it is important that the door may be locked from the inside independently of the locking by the locking mechanism of the depressable locking bolt.
  • lever means operably associated with the reciprocal bolt and the movably locking bolt for moving the locking bolt into the disengaged position in response to the key-operated reciprocation of the bolt into the open position thereof.
  • the locking bolt is mounted for movement under pressure in a direction transverse to the direction of reciprocation of the latch.
  • an unlocking lever is mounted for pivoting in response to the keyoperated reciprocation of the reciprocal bolt and the unlocking lever has an end pressing against an end of the locking bolt in response to the reciprocation, the unlocking lever end is preferably beveled.
  • an intermediate lever is arranged for pivoting in response to the key-operated reciprocation of the reciprocal bolt and the unlocking lever is arranged to be pivoted by pivoting of the intermediate lever to press the end of the unlocking lever against the end of the locking bolt.
  • the intermediate lever has a lug for engagement with recesses in the reciprocal bolt.
  • FIG. 1 is a plan view of the door lock according to the preferred embodiment of this invention, with the cover plate removed to illustrate the lock mechanism, and
  • FIG. 2 is a partial section ofa detail of the lock along line Il-II of FIG. 1.
  • the lock is housed in case 1 conventionally comprised of bottom plate or apron 2, a cover plate (not shown) and side wall 3, the lock case being affixed to the door.
  • Latch 4 is mounted in the case, with its tail end 4a defining notch 5 which receives nose or catch 6 of locking member 7 which is rotatable by a door knob (not shown) in the direction of arrow B in a manner to be described hereinbelow.
  • Latch 4 is guided for reciprocation in a direction transverse to the axis of rotation of the door knob and member 7 by pin 8 engaging longitudinal slot 9 in latch portion 4a.
  • a spring 10 is mounted in the case and biases latch 4 counter to the direction of arrow A, the illustrated spring being a spiral spring having one end affixed to the bottom plate of the case and a free end engaged in a recess in the latch.
  • Locking mechanism 14 (more fully shown in FIG. 2) is threadedly mounted in bottom plate 2 and comprises locking bolt which may be pressed inwardly into the lock case.
  • the locking mechanism comprises a housing having an axial bore slidably receiving the bolt.
  • a retaining ball is held in an annular groove in the locking mechanism housing and is inwardly biased into resilient engagement a respective one of two annular grooves in the periphery of'the bolt.
  • the locking bolt Under spring pressure exerted upon the retaining ball, the locking bolt will be held in its two respective operating positions. the ball yielding under axial pressure upon the bolt but snapping into an aligned annular bolt groove when this pressure ceases.
  • the lock also comprises bolt 11 having portion 12 extending into case 1 and defining recesses 13 in the underside of bolt portion 12.
  • the bolt recesses are arranged to cooperate with, and be engaged by, cam or dog 34 of lock cylinder 35.
  • An unlocking lever 17 is mounted in case 1 for pivoting about fulcrum 16, one end 18 of the lever being in engagement with locking bolt 15.
  • Lever portion 19 which engages bolt end 15a is bevelled.
  • Intermediate lever 21 is mounted in case 1 between bolt 11 and unlocking lever 17, lever 21 being pivotal about fulcrum 20.
  • Lever 21 has extension 22 forming knee 36 with the lever, the outer end of lever extension 22 having a guide or camming surface 23.
  • intermediate lever 21 is mounted in a plane below the plane of bolt 11.
  • the arched lever portion has lug 25 arranged to be engaged in recesses 26 in the upper side of bolt 11.
  • a door lock comprising. in combination: I. a latch reciprocal between an open and locked posltron. 2. a bolt reciprocal between an open and locked position, 3. key operable means for reciprocating the bolt between the locked and open position.
  • the door lock of claim 1 wherein the locking bolt is mounted for movement under pressure in a direction transverse to the direction of reciprocation of the latch.
  • the means operably associated with the locking bolt comprises an unlocking lever mounted for pivoting in response to the key-operated reciprocation of the reciprocal bolt, the unlocking lever having an end pressing against an end of the locking bolt in response to the reciprocation.
  • the means operably associated with the reciprocal bolt comprises an intermediate lever. mounted between the reciprocal bolt and the unlocking lever. the intermediate lever being arranged for pivoting in response to the keyop'erated reciprocation of the reciprocal bolt and the unlocking lever being arranged to be pivoted by pivoting of the intermediate lever to press the end of the unlocking lever against the end of the locking bolt.
  • the keyoperable means comprises a lock cylinder and a cam movable by the lock cylinder into a recess in the reciprocal bolt for reciprocation thereof.

Landscapes

  • Lock And Its Accessories (AREA)
US483686A 1973-06-29 1974-06-27 Door lock Expired - Lifetime US3895505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT578973A AT328912B (de) 1973-06-29 1973-06-29 Turschloss

Publications (1)

Publication Number Publication Date
US3895505A true US3895505A (en) 1975-07-22

Family

ID=3579624

Family Applications (1)

Application Number Title Priority Date Filing Date
US483686A Expired - Lifetime US3895505A (en) 1973-06-29 1974-06-27 Door lock

Country Status (6)

Country Link
US (1) US3895505A (en, 2012)
JP (1) JPS5817872B2 (en, 2012)
AT (1) AT328912B (en, 2012)
CH (1) CH564669A5 (en, 2012)
FR (1) FR2235253B3 (en, 2012)
IT (1) IT1014436B (en, 2012)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295349A (en) * 1979-01-15 1981-10-20 Wasserfaller G Door lock
US4479671A (en) * 1980-07-21 1984-10-30 Valli & Colombo S.P.A. Tubular door lock with a catch device
US5791179A (en) * 1996-08-08 1998-08-11 Brask; James E. Remote control motor driven locking mechanism
US5901590A (en) * 1997-11-24 1999-05-11 Lai; Chin-I Interior door lock assembly with a safety device
US20070084257A1 (en) * 2005-10-19 2007-04-19 Claudio Papaiz Handle blocking system
US20080115544A1 (en) * 2006-11-17 2008-05-22 Yao-Kun Yang Lock having slidable box

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU78443A1 (en, 2012) * 1976-11-04 1978-02-16
AT390989B (de) * 1987-07-07 1990-07-25 Evva Werke Tuerschloss mit verschiebbarem riegel und falle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1071266A (en) * 1911-03-29 1913-08-26 Adolf Schwieger Lock.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1071266A (en) * 1911-03-29 1913-08-26 Adolf Schwieger Lock.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295349A (en) * 1979-01-15 1981-10-20 Wasserfaller G Door lock
US4479671A (en) * 1980-07-21 1984-10-30 Valli & Colombo S.P.A. Tubular door lock with a catch device
US5791179A (en) * 1996-08-08 1998-08-11 Brask; James E. Remote control motor driven locking mechanism
US5901590A (en) * 1997-11-24 1999-05-11 Lai; Chin-I Interior door lock assembly with a safety device
US20070084257A1 (en) * 2005-10-19 2007-04-19 Claudio Papaiz Handle blocking system
US20080115544A1 (en) * 2006-11-17 2008-05-22 Yao-Kun Yang Lock having slidable box
US7426841B2 (en) * 2006-11-17 2008-09-23 Yao-Kun Yang Lock having slidable box

Also Published As

Publication number Publication date
AT328912B (de) 1976-04-12
JPS5036300A (en, 2012) 1975-04-05
CH564669A5 (en, 2012) 1975-07-31
IT1014436B (it) 1977-04-20
ATA578973A (de) 1975-06-15
FR2235253B3 (en, 2012) 1977-05-06
JPS5817872B2 (ja) 1983-04-09
FR2235253A1 (en, 2012) 1975-01-24

Similar Documents

Publication Publication Date Title
US3334500A (en) Panic exit door lock having key actuation
US3895505A (en) Door lock
US2769330A (en) Lock having a sliding latch bolt
US2303624A (en) Door lock
FR2319760A1 (fr) Cremone-serrure
US950108A (en) Mortise-lock.
US4295349A (en) Door lock
US1158845A (en) Lock.
US3115357A (en) Hotel room lock
GB256341A (en) Improvements in latches, locks or fastenings for doors and the like
US452738A (en) Latch
US1604946A (en) Lock
US1707215A (en) Mortise knob lock
US36106A (en) Improvement in locks
GB1462351A (en) Latching device
SU927943A1 (ru) Замок дверной врезной
US1138594A (en) Lock.
GB191013127A (en) Improvements in Furniture Locks.
US967461A (en) Door-lock.
GB2039585A (en) Door Lock
GB189815729A (en) Improvements in Locking Devices for Doors and the like.
GB190405389A (en) Improvements in Locks or Latches.
GB190411787A (en) Hand-cuff or Leg-iron
GB167680A (en) Improvements in door-locks
GB190712701A (en) Improvements in Locks and Fastenings for Sliding Doors.