US3505840A - Locks - Google Patents

Locks Download PDF

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Publication number
US3505840A
US3505840A US736085A US3505840DA US3505840A US 3505840 A US3505840 A US 3505840A US 736085 A US736085 A US 736085A US 3505840D A US3505840D A US 3505840DA US 3505840 A US3505840 A US 3505840A
Authority
US
United States
Prior art keywords
lock
bonnet
plungers
cup
tongue
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
US736085A
Other languages
English (en)
Inventor
Felix R Forster
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.)
FELIX R FORSTER
Original Assignee
FELIX R FORSTER
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 FELIX R FORSTER filed Critical FELIX R FORSTER
Application granted granted Critical
Publication of US3505840A publication Critical patent/US3505840A/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
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
    • E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/14—Hood latches
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/43—Rear deck lid latches
    • 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
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1078—Closure
    • 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
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1083—Rigid
    • Y10T292/1089—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
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/696—With movable dog, catch or striker
    • Y10T292/702—Pivoted or swinging
    • 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
    • Y10T70/5611—For control and machine elements
    • Y10T70/5642—Rod
    • 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
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5903—Hood
    • 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

Definitions

  • One part of the lock such as that mounted on the bonnet or hood includes a helically twisted metal tongue whilst the other part mounted on the body of the automobile includes a rotatable member having a slot into which the tongue can engage to rotate the member which on passing two or more given points is prevented from rotation in the opposite direction by spring loaded plungers until the plungers are sequentially released in the correct order.
  • the present invention relates to improvements in locks. More particularly the invention relates to a lock which has to be released by at least two operations, the operations being performed at two distinct localities which help to ensure that the lock cannot be accidentally opened.
  • Such a lock has important applications, more particularly for the securing of automobile bonnets to prevent them being accidentally opened when the vehicle is in motion.
  • the majority of automobiles are fitted with two separate locking devices, the first a spring loaded locking device being capable of release from inside the vehicle and the second a catch arrangement which comes into operation as soon as the spring loaded lock is released, this catch being only releasable from outside the vehicle.
  • the catch ensures that the bonnet cannot be lifted by the wind.
  • the above described lock arrangement has the disadvantage that the manufacturer has to fit and test two sepaate lock devices, and it is therefore an object of the present invention to obviate the above mentioned disadvantage by providing a single lock.
  • a lock formed in two parts for securing together two components to which the respective parts are secured, which when closed can only be opened by performing two or more separate and sequential operations.
  • FIG. 1 is a front elevation of a preferred form of lock as applied to the bonnet of an automobile.
  • FIG. 2 is a plan view of that part of the lock attached to the body of the automobile.
  • the lock comprises two parts, one part attached to the bonnet and the other to the body.
  • the former includes a metal tongue 10 which is evenly twisted along its length in form of a helix through 180.
  • This tongue 10 is bolted to the bonnet 12 by means of a 3,505,840 Ce Patented Apr. 14, 1970 threaded shank 14 to which it is secured and a nut 16.
  • a hood 18 surrounds the upper part of the tongue 10 and is resiliently mounted on the bonnet by means of a spring 20.
  • the other part includes a plate 22 secured to the body out the automobile, and a cup shaped portion 24 having a rectangular slot 26 therein for receiving the tongue 10. In alternative forms the slot may be square or any suitable profile to enable the tongue 10 to engage it for rotation.
  • the cup-shaped portion 24 is adapted to be rotatably mounted within the plate 22 and is provided with a peripheral flange 28 which extends about two thirds the way around the cup-shaped portion.
  • a pair of plungers 30 to 31 spaced apart by in relation to the cup-shaped portion 24 are guided for longitudinal movement towards and away from the centre of the cup-shaped portion and are biased towards its centre by means of springs 32.
  • the ends of the plungers 32 thus engage with the flange 28 and when the cup-shaped portion 24 is rotated clockwise the plungers '30 and 31 in turn move inwards when the edge 29 of flange 28 passes them.
  • the edge 29 passes a plunger, the cup-shaped portion 24 cannot be rotated backwards past that point until the plunger is released from abutment with the edge 29.
  • the lock is in the position shown whenthe bonnet is open and it will be appreciated that mechanism is incorporated to ensure that the angular position of the tongue is in alignment with that of the slot so that the former can enter the latter when the bonnet is closed.
  • the tongue 10 engages with the rectangular slot 26 and rotates the cup-shaped portion 24 clockwise through as the tongue moves into the rectangular slot.
  • the plungers 30 and 31 sequentially, the plungers are urged forwards by means of the springs 32.
  • the flange 28 has been rotated by 180 and the edge 29 is in abutment with the plunger 31.
  • the hood 18 comes down fully over the cup-shaped portion and by means of the spring 20 eliminates any rattle or movement of the bonnet when the automobile is in motion.
  • To release the bonnet lock first the plunger 31 is pulled back which allows the cup-shaped portion 24 to rotate through 90 and then the second plunger 30 is pulled back to completely free the lock.
  • the operating mechanism for the two plungers are located at different positions within the vehicle.
  • a lock comprising in combination, a male element arranged to be mounted on a first component, a female element arranged to be mounted on a second component which is to be releasably secured to said first component, said female element having an aperture configurated for entry of said male element and being angularly displaceabl with reference to the latter between a locking position, an intermediate position and a release position; and releasable first and second arresting means cooperating with.
  • said female element for preventing angular displacement of the same from said locking position, said first and second arresting means being sequentially operable for permitting successive angular displacement of said female element to said intermediate position and to said release position respectively.
  • a lock as defined in claim 4, said female element comprising a part-circular flange projecting radially with reference to said axis of rotation and having a pair of circumferentially spaced radial abutment shoulders extending inwardly from a periphery of said flange; and 15 wherein each of said first and second arresting means abuttingly engages one of said abutment shoulders in response to movement of said female element to said locking position.
  • said first and second arresting means each including a plunger member slidable radially with reference to said axis of rotation between an advanced position in which its leading end abuts against one of said shoulders, and a withdrawn position in which its leading end is retracted radially outwardly of said periphery of said flange; and further comprising biasing means permanently biasing each of said plunger members to said advanced position thereof.

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  • Lock And Its Accessories (AREA)
US736085A 1967-06-12 1968-06-11 Locks Expired - Lifetime US3505840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2693167 1967-06-12

Publications (1)

Publication Number Publication Date
US3505840A true US3505840A (en) 1970-04-14

Family

ID=10251461

Family Applications (1)

Application Number Title Priority Date Filing Date
US736085A Expired - Lifetime US3505840A (en) 1967-06-12 1968-06-11 Locks

Country Status (3)

Country Link
US (1) US3505840A (enrdf_load_stackoverflow)
DE (1) DE1750856A1 (enrdf_load_stackoverflow)
GB (1) GB1229412A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473350B2 (en) * 2019-12-27 2022-10-18 Toyota Motor Engineering & Manufacturing North America, Inc. Vehicle hood locking mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723552A (en) * 1953-07-29 1955-11-15 Dlugatch Meyer Hood latching locking device
DE1139050B (de) * 1959-04-10 1962-10-31 Bror Goete Persson Verschluss fuer Tueren, insbesondere fuer Kraftwagentueren
US3392557A (en) * 1967-05-10 1968-07-16 Solow Joseph Locking device for automobile hoods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723552A (en) * 1953-07-29 1955-11-15 Dlugatch Meyer Hood latching locking device
DE1139050B (de) * 1959-04-10 1962-10-31 Bror Goete Persson Verschluss fuer Tueren, insbesondere fuer Kraftwagentueren
US3392557A (en) * 1967-05-10 1968-07-16 Solow Joseph Locking device for automobile hoods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473350B2 (en) * 2019-12-27 2022-10-18 Toyota Motor Engineering & Manufacturing North America, Inc. Vehicle hood locking mechanism

Also Published As

Publication number Publication date
GB1229412A (enrdf_load_stackoverflow) 1971-04-21
DE1750856A1 (de) 1971-04-29

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