US3207542A - Door latch mechanisms - Google Patents

Door latch mechanisms Download PDF

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Publication number
US3207542A
US3207542A US287009A US28700963A US3207542A US 3207542 A US3207542 A US 3207542A US 287009 A US287009 A US 287009A US 28700963 A US28700963 A US 28700963A US 3207542 A US3207542 A US 3207542A
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US
United States
Prior art keywords
door
latch
jamb
handle
aperture
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
US287009A
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English (en)
Inventor
John W Neufeld
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.)
AGCO Ltd
Original Assignee
Massey Ferguson Ltd
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 Massey Ferguson Ltd filed Critical Massey Ferguson Ltd
Application granted granted Critical
Publication of US3207542A publication Critical patent/US3207542A/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
    • E05B65/00—Locks or fastenings for special use
    • E05B65/02—Locks or fastenings for special use for thin, hollow, or thin-metal wings
    • E05B65/025—Locks or fastenings for special use for thin, hollow, or thin-metal wings for lockers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/24—Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them
    • E05B63/248—Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them the striker being movable for latching, and pushed back by a member on the wing for unlatching, or vice versa
    • 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
    • Y10T292/0801—Multiple
    • Y10T292/0825—Hooked end
    • Y10T292/0826—Operating means
    • Y10T292/0828—Link and lever

Definitions

  • This invention relates to a door latch mechanism for a hingeable door such as a cabinet or locker door, and has for one of its objects the provision of a simple and relatively inexpensive means for latching and unlatching such doors with relatively few working parts.
  • a door latch mechanism for a hingeable door of the type having a front face, a rear face and a cooperating door jamb
  • latch mechanism comprising a pivotable handle associated with the front face of the door, at least one pivotable latch associated with the door jamb and having a substantially hook-shaped forward end projecting beyond the jamb, at least a first latch aperture in the door and located adjacent the rear face thereof, a vertically slidable lock bar mounted adjacent the rear face of the door and substantially in alignment with the jamb when the door is in its closed and latched position, at least a second latch aperture in the lock bar normally in alignment with the first latch aperture and cooperating therewith and, with the latter, being adapted to contain the forward end of the latch member when the door is in its closed position, and linkage means, connected to the handle and to the lock bar, located adjacent the rear face of the door, and adapted, when the door is in its closed and latched position, and when the handle is pivoted, to raise the lock bar
  • linkage means connected to the handle and to
  • FIGURE l is a perspective view of a storage locker with the door thereof in an open unlatched position, and illustrates a preferred embodiment of the door latch mechanism of this invention
  • FIGURE 2 is an enlarged fragmentary perspective view, partly in section and partly broken away to illustrate certain details, of one side wall of the storage locker of FIGURE l including one of the latch members associated therewith in cooperable latching engagement with the door in the closed and latched position of the latter;
  • FIGURE 3 is an enlarged fragmentary view of the rear or inner face of the door of the storage locker, and illustrates the actuating mechanism for the door latch mechamsm;
  • FIGURE 4 is an enlarged fragmentary view of the front or outer face of the door of the storage locker of FIGURE 1, and also illustrates the actuating mechanism for the door latch mechanism;
  • FIGURE 5 is a sectional view taken generally in the horizontal plane of an actuating member of the actuating mechanism illustrated in FIGURE 4;
  • FIGURE 6 is a schematic top plan view of a plurality of the storage lockers of FIGURE 1 arranged in side-byside relation, and illustrates the manner in which the door handles of adjacent lockers cooperate to form a buffer be- ICC tween such doors as upon opening of one of such doors; and
  • FIGURE 7 is an enlarged fragmentary sectional view taken vertically through the door handles illustrated in FIGURE 6 to show the manner in which they engage t0 act as a buifer as aforesaid.
  • a storage locker or cabinet shown in FIGURE l is provided with a door, indicated generally at 1, hingeably mounted to the main body of the locker at 2, said door including a pair of spaced front and rear face panels 3, 4.
  • the end of the door remote from the hingeable mountings 2 forms a guideway 5 adapted to locate a vertically slidable lock bar 6 therein, said bar being provided with a plurality of spaced apertures 7 therein, one for each latch, as will be described hereinafter.
  • the guideway 5 is also provided with a corresponding plurality of vertically spaced apertures 8.
  • Pivotally mounted at 9 on the inner face of one end panel 10 of the locker are a plurality of vertically spaced latches 11, each of which has its forward hooked end 11 projecting through an associated aperture 12 in the door jamb 13.
  • a rectangular box or recess mounted on the inner face of the front panel 3 of the door, fast therewith and in registry with a rectangular opening in said panel, is a rectangular box or recess, indicated generally at 14, the rear wall 15 of said box being provided with a pair of arcuate slots 16, 17 each concentric with a pivot point 18, said slot 16 being of slightly greater length than the slot 17.
  • a lock bracket 19 Projecting through the upper end of the slot 16 and secured to the rear wall 15 is a lock bracket 19 of U-shaped cross-section having a pair of spaced interconnected arms 20.
  • a handle 21 Projecting from the front of the face 15 and located within the box 14, is a handle 21, preferably covered in vinyl plastic, the ends of the handle passing through the rear wall 15 of the box and extending therefrom.
  • the ends of the handle 21 are adapted to pass through a lock bar actuating member indicated generally at 22, and are secured to the latter by means of nuts 23, one said end of the handle 21 forming the pivot point 18.
  • the greater portion of the length of the latch bar actuating member 22 is located on the outside of the rear panel 4 of the door 1 and spacer washers 24 are provided between the rear panel 4 and the latch bar actuating member 22, said washers being disposed about said ends of the handle member 21.
  • One end 25 of the latch bar actuating member 22 is bent at right angles to the main body of the latter and is adapted to project through an aperture 25 formed in the rear panel 4 of the door and through the slot 16, both said end 25 and pair of arms 20 of the lock bracket 19 being provided with an aperture, said apertures being in alignment with one another for the reception of the hasp of a padlock (not shown).
  • the other end 26 of the main body of the latch bar actuating member 22 is bent slightly out of the plane of said main body and extends towards the junction of the rear panel 4 of the door with the latch bar 6 and is located immediately beneath a rubber bumper 27 fast on a bracket 28 secured at 29 to said latch bar 6.
  • the operation of the door latch mechanism is such, assuming that the door is in closed and locked position, that the operator unlocks the padlock and withdraws the hasp from engagement with the corresponding hasp-receiving apertures in arms 20 of the lock bracket 19 as well as the said one end 25 of the latch bar actuating member 22, thereby freeing the latter for movement with respect to said lock bracket 19.
  • the operator grasps the handle 21 and pulls downwardly thereby causing the righthand end (as viewed vin FIGURE 4) of said handle to move downwardly in the slot 17, and causing said handle and said latch bar actuating member 22 to pivot about point 18.
  • the right-hand end (as viewed in FIGURE 3) of said member Z2 thus moves upwardly and, through the interconnections 27, 28 and 29, causes the latch bar 6 to slide upwardly with respect to its guideway 5.
  • each aperture 7 in the latch bar 6 accordingly contacts the angled underface of its associated latch 11 and causes the latter to pivot about its pivot point 9 until each said l-atch 11 assumes the position shown in phantom line in FIGURE 2.
  • the lowermost extremity of the hook-shaped portion 11 of each latch 11 will have been raised a sufiicient amoun-t to clear the bottom of the associated aperture 8 in the guideway 5 as well as the bottom of the associated or cooperating aperture 12 formed in the door jamb, thereby permitting the door 1 to be fully opened.
  • the vertical plane of the handle 21 is arranged so as to be at a slight angle to the Vertical plane of rear wall 15 of the box 14 as well as to the vertical plane of the door so that the lower portion of said handle projects outwardly from the rear wall 15 of the box 14 and slightly from the front panel 3 of the door.
  • a latch mechanism for a cabinet door hinged for movement toward and -away from a cooperating fixed door jamb on the cabinet comprising a hook-shaped latch pivotally mounted on the cabinet and including a portion projecting beyond said jamb and having an inclined surface, means defin-ing a first aperture on said door to latchingly engage said latch with said door closed against said jamb, a lock bar vertically slidably mounted on said door, means defining a second aperture on said lock .bar to receive said portion of -said latch with said door closed against said jamb, and actuating means f mounted on said door and controlling vertical movement of said lock bar, said actuating means being operable with said door closed and latched against said jamb to lift said lock bar, whereby said second aperture engages said inclined surface and pivots said latch out of latching engagement with said first aperture.
  • a latch mechanism according to claim 2 wherein said actuating means comprises a handle including a pair of spaced legs, means pivotally mounting one of said legs on said door for pivotal movement of said handle thereon, an actuating link engageable with said lock .bar to control vert-ical movement thereof, and means connecting said link to said respective legs of said handle for pivotal movement in unison with the latter.
  • a latch mechanism according to claim 3 wherein said door includes front and rear faces, said link being mounted adjacent said rear face, said front face including means defining a recess therein, and said handle being mounted within said recess.
  • a latch mechanism according to claim 3 wherein said door includes front and rear faces, said actuating link being mounted adjacent said rear face, said front face including means defining a recess therein, and -said handle bein-g mounted within said recess and further including a handle bar interconnecting said spaced legs thereof and projecting from said recess just forward of a Vertical plane containing said front face of said door.
  • a latch mechanism according to cl-aim 2 wherein said actuating means comprises a handle including a pair of spaced legs, means pivotally mounting one of said legs on said door for pivotal movement of said handle thereon, an arcuate slot in saidA door receiving the other of said legs and having a center of curvature substantially coincident with the pivot 4axis of said one of said legs, and an actuating link having spaced portions intermediate the ends thereof mounted on said respective legs of said handle for pivotal movement in unison with the latter, one end of said link being engageable with said lock bar to control vertical movement thereof.
  • a latch mechanism further comprising a second arcuate slot in said door receiving the other end of said link an-d having a center of curvature substantially coincident with thepivot axis of said one of said legs lof said handle, and cooperating means on said door adjacent said sec-ond aperture and said other end of said link to receive the hasp of .a padlock to lock said a-ctuat-ing means -in a latch-engaging position.
  • a latch mechanism for a cabinet door hinged for movement toward and away from a cooperating fixed door jamb on the cabinet comprising a plurality of vertically spaced hook-shaped latches pivotally mounted on the cabinet and respectively including forward end portions thereof projecting in front of said jamb and having inclined surfaces, means defining a plurality of vertically spaced first apertures on said door in substantial horizontal alignment with respective ones of said latches to receive and latchingly engage the latter with said door closed against said jamb, a lock bar vertically slidably mounted on said door, means defining a plurality of vertically spaced second apertures on said lock bar in substantial horizontal alignment with respective ones of said first apertures and said latches to receive said forward end portions of the latter with said door closed against said jamb, and actuating means pivotally mounted on said door and controlling vertical movement of said lock bar, said actuating means being operable with said door closed and latched against said jamb to lift said lock bar, whereby said second apertures respectively engage said inclined portions of said latches to
  • said actuating means comprises a generally U-shaped handle including a pair of spaced legs one end of each thereof being joinedby a handle bar, means pivotally mounting the other end of onev of said legs on said door for pivotal movement of said handle thereon, and an actuating link having spaced portions intermediate the ends thereof mounted on said other ends of said respective legs of said handle for pivotal movement in unison with the latter, one end of said link being engageable with said lock bar to control vertical movement thereof.
  • a latch mechanism according to claim 9 wherein said door includes front and rear faces, said actuating link being mounted adjacent said rear face, said front face including means defining a recess therein, said handle being mounted within said recess with said handle bar thereof projecting therefrom just forward of a vertical plane containing said front face of said door.
  • a latch mechanism according to claim 8 wherein said actuating means comprises a generally U-shaped handle and including a pair of spaced legs one end of each thereof being joined by a handle bar, means pivotally mounting the other end of one of said legs on said door for pivotal movement of said handle thereon, a first arcuate slot in said door receiving the other.
  • an actuating link having spaced portions intermediate the ends thereof being mounted on said other ends of said respective legs of said handle for pivotal movement in unison with the latter, one end of said link being engageable with said lock bar to control vertical movement thereof, a second arcuate slot in said door receiving the other end of said link and having a center of curvature substantially coincident with the pivot axis of said one of said legs of said handle, and cooperating means on said door adjacent said second aperture and said other end ⁇ of said link to receive the hasp of a padlock to lock -said actuating means in a latch-engaging position.
  • a door latch mechanism for a hingeable cabinet door, said door having a front face, a rear face and a cooperating door jamb on the cabinet, a pivotable handle associated with said front face, at least one latch pivotally mounted on the cabinet and including a substantially hookshaped portion having an inclined surface projecting beyond said jamb, at least a iirst latch aperture in said door and located adjacent said rear face thereof, a vertically slidable lock bar mounted adjacent the rear ⁇ face of said door and substantially in alignment with said jamb when said door is in its closed and latched position, at least a second latch aperture in said lock bar normally in alignment with said first latch aperture and cooperating therewith and, with the latter, being adapted to contain said hook-shaped portion of said latch member when said door is in its closed position, and linkage means located adjacent said rear face of said door and connected to said handle and to said lock bar, said linkage means being connected to said handle and to said lock bar, when said door is in its closed and latched position and when Isaid handle is pivoted,
  • a second arcuate slot in said rear wall and said rear face said second arcuate slot being greater in length than said first arcuate slot, coaxial therewith and spaced therefrom, a lock-bracket located adjacent the upper end of said second arcuate slot, said lock bracket being located within said recess and projecting forwardly from said rear wall, said lock bracket having a pair of spaced limbs adapted, when said door is in its closed and latched position, to receive and locate therebetween, one end of said linkage means, each said limb and said one end of said linkage means being bored to receive the hasp of a padlock- 15.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Hinges (AREA)
US287009A 1962-06-13 1963-06-11 Door latch mechanisms Expired - Lifetime US3207542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA851405 1962-06-13

Publications (1)

Publication Number Publication Date
US3207542A true US3207542A (en) 1965-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US287009A Expired - Lifetime US3207542A (en) 1962-06-13 1963-06-11 Door latch mechanisms

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US (1) US3207542A (de)
CH (1) CH428484A (de)
GB (1) GB990766A (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1629641A (en) * 1924-08-13 1927-05-24 Berger Mfg Co Lock
US2109516A (en) * 1934-12-13 1938-03-01 Chicago Railway Equipment Co Railway car structure
US2147903A (en) * 1937-01-16 1939-02-21 Durabilt Steel Locker Company Door latch construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1629641A (en) * 1924-08-13 1927-05-24 Berger Mfg Co Lock
US2109516A (en) * 1934-12-13 1938-03-01 Chicago Railway Equipment Co Railway car structure
US2147903A (en) * 1937-01-16 1939-02-21 Durabilt Steel Locker Company Door latch construction

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Publication number Publication date
GB990766A (en) 1965-04-28
CH428484A (de) 1967-01-15

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