EP0113699A2 - Bolt locking apparatus - Google Patents
Bolt locking apparatus Download PDFInfo
- Publication number
- EP0113699A2 EP0113699A2 EP84300102A EP84300102A EP0113699A2 EP 0113699 A2 EP0113699 A2 EP 0113699A2 EP 84300102 A EP84300102 A EP 84300102A EP 84300102 A EP84300102 A EP 84300102A EP 0113699 A2 EP0113699 A2 EP 0113699A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bolt
- cavity
- locking apparatus
- latch means
- further characterized
- 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.)
- Granted
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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
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0696—Controlling mechanically-operated bolts by electro-magnetically-operated detents locking the bolt by an electromagnet in the striker
Definitions
- This invention relates to bolt locking apparatus for use as the striker component of a latch or lock mechanism.
- the invention is also concerned with a security lock assembly especially suitable for doors.
- the invention provides novel bolt locking apparatus comprising: a striker unit adapted for mounting on a door jamb, which unit defines a cavity to receive a lock bolt, latch means mounted for movement to an operative position protruding into said cavity in which the latch means is engagable with the bolt to prevent its withdrawal from the cavity, and means to drive the latch means to said operative position.
- the apparatus further comprises means responsive to receipt of a lock bolt in the cavity to activate said drive means.
- the responsive means preferably includes a magnetically operable switch mounted adjacent the bolt cavity: it may, for example, comprise a reed switch, advantageously encased in a solid medium behind an inner bounding wall for the bolt cavity.
- the reed would typically then be movable in a small elongate hollow in the medium.
- the bolt is provided with a magnetized element, preferably encased in a spherical or cylindrical core within the bolt.
- the core may be rotatably disposed within the bolt to thwart cutting through of the bolt and/or removal of the magnetized element.
- Said structure may comprise a metal striker plate with a rectangular bolt cavity to receive the lock bolt of a deadbolt mechanism.
- the movable latch means engagable with the bolt may be a pin, rod or the like, e.g., a cylindrical rod, adapted to engage in a hole in the bolt and preferably arranged so that it tends to fall from the bolt cavity under gravity unless held in its operative position.
- a suitable helical spring may be provided to augment the gravity bias on the rod.
- the drive means preferably includes a solenoid which is energizable, preferably in response to receipt of lock bolt in the cavity, to drive the latch means, directly or indirectly, into locking engagement with the bolt and to retain it in such locking engagement.
- the illustrated security lock assembly fitted to a door leaf 6 and door jamb 8, includes a deadbolt latch mechanism 12, having a rectangular bolt 14, in leaf 6, and a striker assembly 16 defining a striker plate 18 and bolt cavity 20, manufactured as a single unit adapted for mounting in the jamb 8. Screw holes 16a are provided for this purpose.
- Deadbolt latch mechanism 12 is of a conventional construction apart from the bolt 14 and, except for this aspect which will be detailed hereinafter, will not be further described. It is represented in Figure 1 by rectangle 12a.
- Striker plate 18 is of L-section steel.
- Bolt cavity 20 is defined by a box protrusion 22 cast intregally with the striker plate.
- the narrower flange 19 of plate 18 carries the usual bolt lead ramp 24 adjacent cavity 20.
- the bolt locking apparatus which constitutes a preferred embodiment of the invention, is mounted behind the striker plate 18.
- the principal components of the apparatus include latch means comprising a slidable bolt locking pin 26, a drive solenoid 28 for the pin, a pair of reed switches 30, 50 encased in a solid resin medium 32 at the rear of bolt cavity 20, and a switching relay 34 operated by reed switch 30 for setting the state of the solenoid and thereby the position of pin 26.
- Reed switch 30, relay 34 and solenoid 28 together constitute means responsive to receipt of the bolt in the cavity to drive pin 26 to an operative position in the cavity in engagement with the bolt 14 to prevent withdrawal of the bolt from the cavity.
- electrical wiring connections are not fully detailed in the drawings, although the leads for reed switches 30, 50 are depicted at 43.
- reed switches 30, 50 comprise respective reeds 31, 51 in elongate hollows 33, 53 extending between contact sets 35, 55 cast in medium 32.
- Medium 32 is fixed behind a back plate 36 for cavity 20 provided by a bracket 38 ( Figure 3).
- Bracket 38 is adjustably mounted by small bolts 39 to a plate 40 projecting integrally from striker plate 18 adjacent cavity 20.
- Media 32 is adhered to bracket 38 and is further retained by return lugs 42 at the top and bottom of plate 36.
- Reeds 31, 51 are of a magnetically sensitive metal and are operated, to open the contacts 35, 55, by a magnetized slug 44 ( Figures 1 and 6) in bolt 14.
- Slug 44 is encased in a spherical core 46, which is in turn freely rotatable with all degrees of freedom, in a complementary cavity in the bolt so that any cutting implement applied to the bolt will in due course strike the sphere and indefinitely rotate it rather than cut it through.
- the core 46 thus thwarts both cutting of the bolt and removal of the magnetized slug.
- Pin 26 is one of a pair 26, 27 fixedly coupled by a horizontal plate 48.
- the pins are firmly but freely slidable through respective apertures in a rearwardly projecting flange 61a behind striker plate 18.
- Pin 26 projects through a matching aperture 25 in box 22 and is slidable upwardly to an operative position in which it firmly engages in a complementary hole 56 in the underside of bolt 14.
- a helical compression spring 62 about pin 26 between box 22 and plate 48 augments the gravity bias.
- the space above cavity 20 is occupied by a small circuit board 66 with multi-point connector 68 and the aforementioned relay 34.
- the contact set 35 of reed switch 30 is connected for operating relay 34.
- the contact set 55 of reed switch 50 is coupled via connector 68 to a remote central monitoring control, not shown, at which the state of the reed switch would be indicated in any suitable manner, such as by a light.
- a third reed switch 70 is mounted to plate 40 under bracket 38 but is mechanically rather than magetically operated.
- the external reed 72 of this switch is engaged by plate 48 as it nears the top of its upward travel and reed switch 70 may thus be employed to indicate at the remote control that pin 26 is in an operative, bolt engaging position.
- the security provisions do not prevent opening the door in an emergency.
- the power may be simultaneously withdrawn from the solenoids of all doorways to permit the withdrawal of the respective bolts from their striker cavities.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Surgical Instruments (AREA)
- Water Treatment By Sorption (AREA)
- Clamps And Clips (AREA)
Abstract
Description
- This invention relates to bolt locking apparatus for use as the striker component of a latch or lock mechanism. In a most suitable application, the invention is also concerned with a security lock assembly especially suitable for doors.
- The invention provides novel bolt locking apparatus comprising: a striker unit adapted for mounting on a door jamb, which unit defines a cavity to receive a lock bolt, latch means mounted for movement to an operative position protruding into said cavity in which the latch means is engagable with the bolt to prevent its withdrawal from the cavity, and means to drive the latch means to said operative position.
- Advantageously, the apparatus further comprises means responsive to receipt of a lock bolt in the cavity to activate said drive means.
- The responsive means preferably includes a magnetically operable switch mounted adjacent the bolt cavity: it may, for example, comprise a reed switch, advantageously encased in a solid medium behind an inner bounding wall for the bolt cavity. The reed would typically then be movable in a small elongate hollow in the medium. For operating the switch, the bolt is provided with a magnetized element, preferably encased in a spherical or cylindrical core within the bolt. The core may be rotatably disposed within the bolt to thwart cutting through of the bolt and/or removal of the magnetized element.
- Said structure may comprise a metal striker plate with a rectangular bolt cavity to receive the lock bolt of a deadbolt mechanism. The movable latch means engagable with the bolt may be a pin, rod or the like, e.g., a cylindrical rod, adapted to engage in a hole in the bolt and preferably arranged so that it tends to fall from the bolt cavity under gravity unless held in its operative position. A suitable helical spring may be provided to augment the gravity bias on the rod.
- The drive means preferably includes a solenoid which is energizable, preferably in response to receipt of lock bolt in the cavity, to drive the latch means, directly or indirectly, into locking engagement with the bolt and to retain it in such locking engagement.
- Further switches are advantageously provided for indicating to a remote control panel whether the bolt is in the cavity and whether the latch means is in its operative position.
- The invention will be further described, by way of example only, with reference to the accompanying drawings, in which:
- Figure 1 is a vertical cross-section through a closed door fitted with a security lock assembly including bolt locking apparatus in accordance with the invention;
- Figure 2 is a rear elevational view of the striker assembly incorporating the bolt locking apparatus;
- Figures 3 and 4 are cross-sections on the lines 3-3 and 4-4 in Figures 2 and 3 respectively;
- Figure 5 is a cross-section on the line 5-5 in Figure 2, but with the locking pin shown retracted; and
- Figure 6 is an enlargement of the central area of Figure 1.
- The illustrated security lock assembly, fitted to a
door leaf 6 and door jamb 8, includes adeadbolt latch mechanism 12, having arectangular bolt 14, inleaf 6, and astriker assembly 16 defining astriker plate 18 andbolt cavity 20, manufactured as a single unit adapted for mounting in the jamb 8.Screw holes 16a are provided for this purpose. -
Deadbolt latch mechanism 12 is of a conventional construction apart from thebolt 14 and, except for this aspect which will be detailed hereinafter, will not be further described. It is represented in Figure 1 by rectangle 12a. -
Striker plate 18 is of L-section steel.Bolt cavity 20 is defined by abox protrusion 22 cast intregally with the striker plate. Thenarrower flange 19 ofplate 18 carries the usualbolt lead ramp 24adjacent cavity 20. - The bolt locking apparatus, which constitutes a preferred embodiment of the invention, is mounted behind the
striker plate 18. The principal components of the apparatus include latch means comprising a slidablebolt locking pin 26, adrive solenoid 28 for the pin, a pair ofreed switches solid resin medium 32 at the rear ofbolt cavity 20, and a switchingrelay 34 operated byreed switch 30 for setting the state of the solenoid and thereby the position ofpin 26.Reed switch 30,relay 34 andsolenoid 28 together constitute means responsive to receipt of the bolt in the cavity to drivepin 26 to an operative position in the cavity in engagement with thebolt 14 to prevent withdrawal of the bolt from the cavity. For enhanced clarity, electrical wiring connections are not fully detailed in the drawings, although the leads forreed switches - With reference in particular to Figure 4, reed switches 30, 50, comprise
respective reeds 31, 51 inelongate hollows medium 32.Medium 32 is fixed behind aback plate 36 forcavity 20 provided by a bracket 38 (Figure 3).Bracket 38 is adjustably mounted bysmall bolts 39 to aplate 40 projecting integrally fromstriker plate 18adjacent cavity 20.Media 32 is adhered tobracket 38 and is further retained by return lugs 42 at the top and bottom ofplate 36. -
Reeds 31, 51 are of a magnetically sensitive metal and are operated, to open thecontacts bolt 14.Slug 44 is encased in aspherical core 46, which is in turn freely rotatable with all degrees of freedom, in a complementary cavity in the bolt so that any cutting implement applied to the bolt will in due course strike the sphere and indefinitely rotate it rather than cut it through. The core 46 thus thwarts both cutting of the bolt and removal of the magnetized slug. -
Pin 26 is one of apair horizontal plate 48. The pins are firmly but freely slidable through respective apertures in arearwardly projecting flange 61a behindstriker plate 18.Pin 26 projects through a matchingaperture 25 inbox 22 and is slidable upwardly to an operative position in which it firmly engages in acomplementary hole 56 in the underside ofbolt 14. When not held in this operative position, the assembly ofpins plate 48 tends to fall under gravity to withdrawpin 26 fromcavity 20. Ahelical compression spring 62 aboutpin 26 betweenbox 22 andplate 48 augments the gravity bias. - The lower end of
pin 27, which is of course shorter thanpin 26, abuts a magneticallysensitive rod 64 which is surrounded by thecoil 29 ofsolenoid 28. When the solenoid is not energized, theenlarged bottom 65 ofrod 64 rests on alower flange 61b behindstriker plate 18. - The space above
cavity 20 is occupied by asmall circuit board 66 withmulti-point connector 68 and theaforementioned relay 34. As already foreshadowed, the contact set 35 ofreed switch 30 is connected for operatingrelay 34. The contact set 55 ofreed switch 50 is coupled viaconnector 68 to a remote central monitoring control, not shown, at which the state of the reed switch would be indicated in any suitable manner, such as by a light. - A
third reed switch 70 is mounted to plate 40 underbracket 38 but is mechanically rather than magetically operated. Theexternal reed 72 of this switch is engaged byplate 48 as it nears the top of its upward travel andreed switch 70 may thus be employed to indicate at the remote control thatpin 26 is in an operative, bolt engaging position. - The operation of the security lock assembly will now be reviewed. When the
door leaf 6 is shut and thebolt 14 thrown, the receipt of the bolt intocavity 20 is sensed by bothreed switches magnetized slug 44 changes the state of the switches.Switch 30 thereby triggers relay 34 to energizesolenoid 28.Rod 64 is propelled upwardly againstpin 27 and thepin 26 thereby driven against gravity andspring 62 into thehole 56.Bolt 14 is thereby positively and physically locked into the striker cavity.Switch 50 will have transmitted a signal to the control monitor 80 to indicate that the bolt has enteredstriker cavity 20, whileplate 48 will have operatedswitch 70 to transmit a further signal confirming thatpin 26 is in its operative position. This action will have taken place entirely automatically and thus any person who has passed through into a security area and shut the door will be trapped in the security area and will only be able to depart on withdrawal of the power supply to the solenoid by appropriate switching at the central control. Moreover, consequent unlocking and withdrawal of the bolt are separately monitored byswitches - It will be noted that the security provisions do not prevent opening the door in an emergency. In the event of a fire or other emergency in an installation with multiple doorways fitted out as illustrated, the power may be simultaneously withdrawn from the solenoids of all doorways to permit the withdrawal of the respective bolts from their striker cavities.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84300102T ATE30616T1 (en) | 1983-01-10 | 1984-01-09 | BOLT INTERLOCKING DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPF754783 | 1983-01-10 | ||
AU7547/83 | 1983-01-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0113699A2 true EP0113699A2 (en) | 1984-07-18 |
EP0113699A3 EP0113699A3 (en) | 1984-12-05 |
EP0113699B1 EP0113699B1 (en) | 1987-11-04 |
Family
ID=3769924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84300102A Expired EP0113699B1 (en) | 1983-01-10 | 1984-01-09 | Bolt locking apparatus |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0113699B1 (en) |
AT (1) | ATE30616T1 (en) |
DE (1) | DE3467206D1 (en) |
GB (1) | GB2133454B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985003971A1 (en) * | 1984-02-29 | 1985-09-12 | Donald Bebbington Smith | Checking devices for fasteners |
GB2228288A (en) * | 1988-12-22 | 1990-08-22 | Electronic Surveillance Produc | Safety lock for remote actuation |
AU687542B2 (en) * | 1994-07-20 | 1998-02-26 | Avedis Mardiryan | Electronic deadlock |
DE19739818A1 (en) * | 1997-09-11 | 1999-03-18 | Kaba Gallenschuetz Gmbh | Door system with door lock |
FR2868459A1 (en) * | 2004-04-05 | 2005-10-07 | Christian Desliens | Panel/drawer locking device for showcase door, has electronic module to trigger time interval and to signal imminence of triggering of alarm device when finger`s presence is not detected so that user closes panel or reads electronic medium |
CN101974989A (en) * | 2010-10-19 | 2011-02-16 | 奇瑞汽车股份有限公司 | Door lock control device and door lock control system having same |
WO2023128938A1 (en) * | 2021-12-28 | 2023-07-06 | Eczacibasi Yapi Gerecleri Sanayi Ve Ticaret Anonim Sirketi | Mechanism enabling a door to be controlled both mechanically and electronically |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE386544C (en) * | 1921-06-19 | 1923-12-11 | Hugo Klostermann | Electromagnetic door lock |
DE433321C (en) * | 1923-08-31 | 1926-09-01 | Internationales Handelsbuero F | Electric lock security |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL152626B (en) * | 1974-06-19 | 1977-03-15 | Salomon Stad | CLOSING BOX WITH MOVABLE BOLT CATCH FOR A DOOR BOLT. |
-
1983
- 1983-05-26 GB GB08314603A patent/GB2133454B/en not_active Expired
-
1984
- 1984-01-09 AT AT84300102T patent/ATE30616T1/en not_active IP Right Cessation
- 1984-01-09 EP EP84300102A patent/EP0113699B1/en not_active Expired
- 1984-01-09 DE DE8484300102T patent/DE3467206D1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE386544C (en) * | 1921-06-19 | 1923-12-11 | Hugo Klostermann | Electromagnetic door lock |
DE433321C (en) * | 1923-08-31 | 1926-09-01 | Internationales Handelsbuero F | Electric lock security |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985003971A1 (en) * | 1984-02-29 | 1985-09-12 | Donald Bebbington Smith | Checking devices for fasteners |
GB2228288A (en) * | 1988-12-22 | 1990-08-22 | Electronic Surveillance Produc | Safety lock for remote actuation |
GB2228288B (en) * | 1988-12-22 | 1993-04-14 | Electronic Surveillance Produc | Lock mechanisms |
AU687542B2 (en) * | 1994-07-20 | 1998-02-26 | Avedis Mardiryan | Electronic deadlock |
DE19739818A1 (en) * | 1997-09-11 | 1999-03-18 | Kaba Gallenschuetz Gmbh | Door system with door lock |
FR2868459A1 (en) * | 2004-04-05 | 2005-10-07 | Christian Desliens | Panel/drawer locking device for showcase door, has electronic module to trigger time interval and to signal imminence of triggering of alarm device when finger`s presence is not detected so that user closes panel or reads electronic medium |
CN101974989A (en) * | 2010-10-19 | 2011-02-16 | 奇瑞汽车股份有限公司 | Door lock control device and door lock control system having same |
CN101974989B (en) * | 2010-10-19 | 2012-09-05 | 奇瑞汽车股份有限公司 | Door lock control device and door lock control system having same |
WO2023128938A1 (en) * | 2021-12-28 | 2023-07-06 | Eczacibasi Yapi Gerecleri Sanayi Ve Ticaret Anonim Sirketi | Mechanism enabling a door to be controlled both mechanically and electronically |
Also Published As
Publication number | Publication date |
---|---|
GB8314603D0 (en) | 1983-06-29 |
ATE30616T1 (en) | 1987-11-15 |
EP0113699A3 (en) | 1984-12-05 |
DE3467206D1 (en) | 1987-12-10 |
GB2133454B (en) | 1986-09-24 |
EP0113699B1 (en) | 1987-11-04 |
GB2133454A (en) | 1984-07-25 |
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