EP0153627B1 - Mécanisme caché pour le déverrouillage d'une porte - Google Patents

Mécanisme caché pour le déverrouillage d'une porte Download PDF

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Publication number
EP0153627B1
EP0153627B1 EP19850101284 EP85101284A EP0153627B1 EP 0153627 B1 EP0153627 B1 EP 0153627B1 EP 19850101284 EP19850101284 EP 19850101284 EP 85101284 A EP85101284 A EP 85101284A EP 0153627 B1 EP0153627 B1 EP 0153627B1
Authority
EP
European Patent Office
Prior art keywords
door
latch bolt
release mechanism
keeper
ramped surface
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
Application number
EP19850101284
Other languages
German (de)
English (en)
Other versions
EP0153627A1 (fr
Inventor
Leland J. Hanchett, Jr.
Mark A. Lawrence
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.)
Hanchett Entry Systems Inc
Original Assignee
Hanchett Entry Systems Inc
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 Hanchett Entry Systems Inc filed Critical Hanchett Entry Systems Inc
Publication of EP0153627A1 publication Critical patent/EP0153627A1/fr
Application granted granted Critical
Publication of EP0153627B1 publication Critical patent/EP0153627B1/fr
Expired 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
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate
    • E05B47/0047—Striker rotating about an axis parallel to the wing edge

Definitions

  • This invention relates to security devices, and more particularly to a concealed door release mechanism for doors utilizing latch bolts, of the type indicated in the first part of claim 1 (and likewise known from US-A-4 181 338).
  • US-A-4 181 338 discloses a jamb mounted strike assembly cooperative with door locks or latches having movable latch bolts.
  • the strike assembly is for capturing and securing a door in a closed position over a related doorway and has an inbuilt capability of automatically. releasing the bolt means under impact to provide emergency door opening operation.
  • the object of the invention is to provide a door release mchanism of the type disclosed in US-A-4181 338, which is automatically actuated through operation of a solenoid and which is concealed within a door jamb thereby rendering the release mechanism invulnerable to attack.
  • a door release mechanism for a door having a latch bolt comprising:
  • Door release mechanism 10 is mounted within a strike block 12 which is covered by a strike plate 14.
  • Strike plate 14 includes apertures 16 for mounting strike plate 14 and strike block 12 to a door jamb (not shown).
  • Strike block 12 is mounted to strike plate 14 utilizing screws 20.
  • Strike block 12 receives a latch bolt 22 carried by a door 24 when door 24 is in the closed position.
  • Latch bolt 22 is retracted within door 24 as door 24 is opened.
  • Latch bolt 22 is spring loaded and is extended into strike block 12 when door 24 is closed.
  • a ramped surface 26 Disposed within strike block 12 is a ramped surface 26 over which latch bolt 22 travels. Also included within strike block 12 and disposed within a slot 28 within ramped surface 26 is a keeper mechanism 30. Keeper mechanism 30 is pivotable about pin 32 within strike block 12. As illustrated in Figure 2, keeper mechanism 30 is in the closed position such that latch bolt 22 is positioned below keeper mechanism 30 at the bottom end of ramped surface 26.
  • keeper mechanism 30 Interconnected to strike block 12 is a solenoid 36 which when actuated causes keeper mechanism 30 to be retracted within strike block 12 as latch bolt 22 moves across ramped surface 26 from the bottom end of ramped surface 26 to the top end thereof. Such movment thereby enables door 24 to open. In the open position of door 24, keeper mechanism 30 automatically returns to the position illustrated in Figure 2.
  • a return spring 40 which maintains keeper mechanism 30 in the position as illustrated in Figure 2.
  • keeper mechanism 30 Interconnected to keeper mechanism 30 is a channel-like dogging member 42 which is pivotally interconnected to keeper mechanism 30 via a pin 44. Also mounted on pin 44 is a roller 46. Pivotally interconnected to dogging member 42 is a lever member 48 via a pin 50.
  • solenoid 36 When solenoid 36 is energized, members 42 and 48 pivot to allow keeper mechanism 30 to pivot in a clockwise direction about pin 32.
  • latch bolt 22 moves up ramped surface 26, it is simultaneously forced into door 24 thus releasing door 24 near the end of travel of latch bolt 22.
  • a short continuation of ramped surface 26 is provided by a bevel 56 on the opening in strike plate 14.
  • a slight bevel 22a may be provided on latch bolt 22 to provide a smoother operation of latch bolt 22 as it travels over ramped surface 26.
  • Figure 2 illustrates keeper mechanism 30 in the closed position while Figure 3 illustrates keeper mechanism 30 in the open position.
  • keeper mechanism 30 In the open position of keeper mechanism 30, keeper mechanism 30 is biased to its full counterclockwise position around pin 32 with members42 and 48 horizontally disposed.
  • Return spring 40 biases keeper mechanism 30 to the closed position as illstrated in Figure 2.
  • a bias spring 60 also extends around pin 32 and engages dogging member 42. Bias spring 60 maintains dogging member 42 in its fully counterclockwise position about pin 44.
  • a torsion spring 62 is mounted around pin 50 to hold lever member 48 in its fully clockwise position about pin 50. Torsion spring 62 may be held within a groove in level member 48. Springs 40, 60 and 62, bias keeper mechanism 30, dogging member 42 and lever member 48 in the position shown in Figure 2.
  • a push plunger 66 extends from solenoid 36 into strike block 12 when solenoid 36 is electrically energized.
  • solenoid 36 When solenoid 36 is energized, push plunger 66 engages pin 50 interconnecting dogging member 42 and lever member 48 to allow keeper mechanism 30 to move to a slightly less than perpendicular position within strike block 12.
  • Latch bolt 22 is then free to move up ramped surface 26 and into a fully released condition as illustrated in Figure 3.
  • Roller 46 mounted to pin 44 provides for a smoother operation of keeper mechanism 30 as latch bolt 22 retracts keeper mechanism 30 into strike block 12 out of the path of ramped surface 26 to allow latch bolt 22 to completely retract within door 24.
  • latch bolt 22 Once latch bolt 22 has cleared keeper mechanism 30, keeper mechanism 30 will automatically return to the closed and locked position due to springs 40, 60 and 62 to the position illustrated in Figure 2.
  • strike plate 14 forces latch bolt 22 back into door 24.
  • Latch bolt 22 stays within door 24 until latch bolt 22 has cleared keeper mechanism 30 at which time latch bolt 22 due to the spring loading forces on latch bolt 22 reenters strike block 12 below dogging member 42 as illustrated in Figure 2.
  • a fail-safe operation of the present door release mechanism 10 can be accomplished by changing the operation of solenoid 36 from a push solenoid to a spring loaded pull solenoid.
  • push plunger 66 In the unpowered condition, push plunger 66 is spring loaded to pin 50. When power is applied, push plunger66 moves out of the way and dogging member 42 and lever member 48 are locked.
  • the present invention provides for a door release mechanism that is substantially concealed and not visible when the door is closed.
  • the present release mechanism is automatically actuated through operation of a solenoid thereby rendering the present release mechanism invulnerable to attack.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Claims (4)

1. Mécanisme de libération de porte (10) pour une porte (24) comportant un pêne demi-tour (22), comportant un pêne demi-tour, ce mécanisme comprenant, d'une part, un block de gâche (12) destiné à recevoir le pêne demi-tour (22) et présentant une surface en forme de rampe (26) sur laquelle se déplace ce pêne demi-tour (22), de façon à repousser celui-ci dans la porte afin d'ouvrir ainsi cette dernière, ladite surface en forme de rampe (26) comportant une ouverture fendue, et, d'autre part, une gâche pivotante (30) disposée à l'intérieur de cette ouverture fendue afin d'empêcher le pêne demi-tour (22) de se déplacer sur la surface en forme de rampe (26) dans le but de maintenir la porte dans une position fermée, caractérisé par une pièce d'arrêt (42) montée pivotante sur la gâche, à l'intérieur de l'ouverture fendue, et destinée à coopérer avec le pêne demi-tour (22), une pièce formant levier (48) montée pivotante sur cette pièce d'arrêt (42) et des moyens (36) montés sur le bloc de gâche (12) en vue d'actionner cette pièce formant levier (48), en permettant ainsi à la pièce d'arrêt (42) et à la gâche (30) de pivoter à l'intérieur du block de gâche (12) et de s'effacer de Ijdite ouverture (28).
2. Mécanisme de libération de porte (10) de la revendication 1, caractérisé en outre par des moyens (40, 60) permettant de repousser élastiquement la gâche (30) et la pièce d'arrêt (42) à l'intérieur de l'ouverture fendue (28).
3. Mécanisme de libération de porte de la revendication 2, caractérisé en outre par des moyens (62) permettant de repousser élastiquement la pièce formant levier (48) dans l'alignement de la pièce d'arrêt (42).
4. Mécanisme de libération de porte de la .revendicaion 1, dans lequel les moyens (36) d'actionnement de la pièce formant levier (48) sont constitués par un électro-aimant à plongeur (36).
EP19850101284 1984-02-10 1985-02-07 Mécanisme caché pour le déverrouillage d'une porte Expired EP0153627B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57888684A 1984-02-10 1984-02-10
US578886 1984-02-10

Publications (2)

Publication Number Publication Date
EP0153627A1 EP0153627A1 (fr) 1985-09-04
EP0153627B1 true EP0153627B1 (fr) 1988-09-21

Family

ID=24314714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850101284 Expired EP0153627B1 (fr) 1984-02-10 1985-02-07 Mécanisme caché pour le déverrouillage d'une porte

Country Status (2)

Country Link
EP (1) EP0153627B1 (fr)
DE (1) DE3565145D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9010256D0 (en) * 1990-05-08 1990-06-27 Banham Patent Locks Ltd Locking latches
DE10347528B3 (de) * 2003-10-13 2005-03-17 Eff-Eff Fritz Fuss Gmbh & Co. Kgaa Türöffner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181338A (en) * 1977-06-09 1980-01-01 Sterling John G Strike assembly
GB2111113B (en) * 1981-09-17 1985-08-14 Clarke Instr Limited Striking plate for latches

Also Published As

Publication number Publication date
DE3565145D1 (en) 1988-10-27
EP0153627A1 (fr) 1985-09-04

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