EP0091314A1 - Locking apparatus - Google Patents
Locking apparatus Download PDFInfo
- Publication number
- EP0091314A1 EP0091314A1 EP83301909A EP83301909A EP0091314A1 EP 0091314 A1 EP0091314 A1 EP 0091314A1 EP 83301909 A EP83301909 A EP 83301909A EP 83301909 A EP83301909 A EP 83301909A EP 0091314 A1 EP0091314 A1 EP 0091314A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- locking apparatus
- bolt
- solenoid
- sensor
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B43/00—Time locks
- E05B43/005—Timer devices controlling electrically operated locks
-
- 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
Definitions
- This invention relates to locking apparatus and more especially although not exclusively it relates to locking apparatus suitable for safes and strong rooms.
- Safes and strong rooms although normally locked are nevertheless vulnerable if a key can be procured.
- safes and strong rooms are often fitted with a time lock which prevents the safe or strong room from being opened even with a key, except during a limited time period which is usually during business hours.
- locking apparatus comprises a bolt effective to provide security, an electrically operated locking device effective normally to prevent withdrawal of the bolt, a sensor, and a delay device, the sensor being responsive to operation of the locking apparatus from a locked condition to an unlocked condition such that the sensor causes the locking device to operate after a period of time determined by the delay device so that withdrawal of the bolt is then permitted.
- the sensor may be responsive to a key which is used to operate the locking apparatus from its locked to its unlocked condition.
- the sensor may be responsive to a combination locking mechanism which is used to operate the locking apparatus from its locked condition to its unlocked condition.
- the sensor may comprise a microswitch.
- the electrically operated locking device may comprise a solenoid operated locking member arranged normally to engage for locking purposes with the bolt, but which responsively to energisation of the solenoid is moved so as to permit withdrawal of the bolt.
- the locking member may comprise a latch member, which normally engages for locking purposes with a complementary slot in the bolt but which responsively to energisation of the solenoid is lifted so as to permit withdrawal of the bolt.
- the solenoid may be coupled to indicator means which serves to indicate whether or not the solenoid is energised so that the bolt can be withdrawn.
- the indicator means may comprise an indicator light and/or an audible indicator.
- the audible indicator may be arranged to operate for a brief period only whilst it is possible to withdraw the bolt.
- the solenoid may be fed with power from batteries contained in a battery box.
- the batteries are rechargeable batteries.
- the delay device may comprise an electrical timer.
- the electrical timer may comprise a solid state electrical timer.
- locking apparatus serves to buy time due to the delay between operation of the locking apparatus from a locked condition to an unlocked condition and withdrawal of the bolt to open a safe or the like with which the bolt is operatively associated.
- This delay is likely to unnerve a raider who will not know the delay period and will therefore most likely make off empty handed. Even if the raider knows the delay period, it is unlikely that he will have the time or the nerve to wait ; until the delay period has expired.
- the locking apparatus is provided with over-ride means for preventing operation of the locking apparatus during predeterminable set times.
- the over-ride means can thus be used to prevent the locking apparatus operating at night and at weekends so that a raider cannot kidnap a bank manager, for example, obtain the required key or combination and then have plenty of time during the night or the weekend to wait for the time delay afforded by the locking device to lapse.
- the over-ride means can be any convenient apparatus such for example as a printed circuit board appropriately connected to and forming part of the locking apparatus.
- a safe door 2 is fitted with a locking bolt 4 which enters into a complementary recess (not shown) of a door frame for security purposes.
- the bolt 4 is operatively associated with a bolt withdrawal mechanism (not shown) and a clockwork time lock 6.
- the time lock 6 includes a locking bar 8 which serves to prevent withdrawal of the bolt 4 during specified time periods set on the time lock.
- the time lock 6 operates to enable the bolt 4 to be released, the locking bar 8 is moved in the direction of the arrow 10 but the bolt 4 can still not be moved in the direction of the arrow 12 to be withdrawn, because an electrically operated locking device in the form of a solenoid lock 14 is arranged to retain the bolt 4 in position.
- the solenoid lock 14 comprises a latch plate 16 which normally engages a complementary slot 18 in the bolt 4. However, when a solenoid 20 is energised the latch plate 16 is constrained to move in the direction indicated by arrow 22 so as to release the bolt 4. Relocking of the door 2 causes resetting of the locking apparatus.
- the solenoid 20 of the solenoid lock 14 is arranged to be fed with electrical energy via a timer 24 as shown in Figure 1.
- the timer 24 is arranged to be started into operation consequent upon activation of a sensor in the form of a microswitch 25 which is contained in a lock 26.
- the lock 26 has a keyhole 27 and the microswitch 25 is operated when a key 29 is inserted into the keyhole 27 and turned to move the lock 26 from its locked to its unlocked condition.
- the solenoid 20 is fed with power from rechargeable batteries in a battery box 28, and the operative state of the solenoid 20 is indicated by an indicator light arrangement 30 comprising a red light 32 and a green light 34.
- the green light 34 is lit when the solenoid 20 is operated so that the bolt 4 can be withdrawn and the red light 32 is operated when the bolt 4 is retained by the latch plate 16 which normally falls under gravity into the slot 18.
- a buzzer may be arranged to provide an audible signal when the solenoid 20 is operated and the bolt can be withdrawn.
- the solenoid 20 only operates for a short period of time, for example 15 or 30 seconds and the safe door must be opened in this time. If the safe door is not opened in this time, then the solenoid 20 will cease to operate and the latch plate 16 will fall back into the slot 18 and it will not be possible to open the safe door.
- the key 29 must be re-introduced into the keyhole 27 to restart the entire sequence of operations.
- the solenoid 20 is advantageously arranged to restart its period of operation each time the key 29 is inserted into the keyhole 27.
- timer 24 may provide any predetermined time delay period, for example of from 1 to 15 minutes or more, it is envisaged that the timer 24 might normally provide a delay of approximately 5 minutes.
- the timer 24 may comprise a solid state timer device. By providing an electrical solid state timer, it is possible precisely to set the delay period and the precise delay can easily be altered as may be desired.
- Locking apparatus has the advantage that a predetermined period of time is bought between insertion of a key in the keyhole 26 and the opening of a safe with which the lock is associated, whereby raiders are thwarted.
- the locking apparatus is clearly of great use in banks and post offices and it is particularly advantageous in that one key only is required which serves to release the normal bolt operating mechanism (not shown) and to operate the electrical timer 24.
- a lock as just before described is eminently suitable for safes and strong rooms it is envisaged that locks in accordance with the present invention may be fitted to tills and other secure containers for valuables. The tills and other secure containers may then be fitted with a locking bar.
- the solenoid lock 14 can form part of or can be separate from the time lock 6.
- the locking apparatus is provided with a protector mechanism (not shown) for ensuring that the locking device remains in the desired locking position even if the safe, till or the like is inverted.
- the lock 26 can be a combination operated lock instead of a key operated lock.
- the locking apparatus is provided with over-ride means (not shown) for preventing operation of the locking apparatus during predeterminable set times that may be set by an operator.
- an operator might set the over-ride means so that the locking apparatus cannot be opened during the night and say until 10.00 a.m. the next morning so that a raider cannot kidnap the operator during the night, obtain the key or combination and have the peace of the night to wait for the time delay afforded by the locking device to lapse.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
- This invention relates to locking apparatus and more especially although not exclusively it relates to locking apparatus suitable for safes and strong rooms.
- Safes and strong rooms although normally locked are nevertheless vulnerable if a key can be procured. To prevent a keyholder from being attacked or abducted for the purpose of obtaining a key, safes and strong rooms are often fitted with a time lock which prevents the safe or strong room from being opened even with a key, except during a limited time period which is usually during business hours.
- During business hours however, safes and strong room can be vulnerable to armed raiders prepared to demand a key with threats of violence. Under these circumstances, the time lock if one is provided, will not be in operation and a key holder will normally quite sensibly part with the key whereby the safe or strong room can be opened immediately by the raider. Similarly, if the safe or the strong room is operable by a combination operated lock instead of a key operated lock, then the combination holder will again normally quite sensibly part with the information as to the combination needed.
- It is an object of the present invention to provide a locking system which will buy time without risk to the key or combination holder.
- According to the present invention locking apparatus comprises a bolt effective to provide security, an electrically operated locking device effective normally to prevent withdrawal of the bolt, a sensor, and a delay device, the sensor being responsive to operation of the locking apparatus from a locked condition to an unlocked condition such that the sensor causes the locking device to operate after a period of time determined by the delay device so that withdrawal of the bolt is then permitted.
- The sensor may be responsive to a key which is used to operate the locking apparatus from its locked to its unlocked condition. Alternatively, the sensor may be responsive to a combination locking mechanism which is used to operate the locking apparatus from its locked condition to its unlocked condition.
- The sensor may comprise a microswitch.
- The electrically operated locking device may comprise a solenoid operated locking member arranged normally to engage for locking purposes with the bolt, but which responsively to energisation of the solenoid is moved so as to permit withdrawal of the bolt.
- The locking member may comprise a latch member, which normally engages for locking purposes with a complementary slot in the bolt but which responsively to energisation of the solenoid is lifted so as to permit withdrawal of the bolt.
- The solenoid may be coupled to indicator means which serves to indicate whether or not the solenoid is energised so that the bolt can be withdrawn. The indicator means may comprise an indicator light and/or an audible indicator.
- The audible indicator may be arranged to operate for a brief period only whilst it is possible to withdraw the bolt.
- The solenoid may be fed with power from batteries contained in a battery box. Advantageously, the batteries are rechargeable batteries.
- The delay device may comprise an electrical timer.
- The electrical timer may comprise a solid state electrical timer.
- It will be appreciated that locking apparatus according to the present invention serves to buy time due to the delay between operation of the locking apparatus from a locked condition to an unlocked condition and withdrawal of the bolt to open a safe or the like with which the bolt is operatively associated. This delay is likely to unnerve a raider who will not know the delay period and will therefore most likely make off empty handed. Even if the raider knows the delay period, it is unlikely that he will have the time or the nerve to wait ; until the delay period has expired.
- Advantageously, the locking apparatus is provided with over-ride means for preventing operation of the locking apparatus during predeterminable set times. The over-ride means can thus be used to prevent the locking apparatus operating at night and at weekends so that a raider cannot kidnap a bank manager, for example, obtain the required key or combination and then have plenty of time during the night or the weekend to wait for the time delay afforded by the locking device to lapse. The over-ride means can be any convenient apparatus such for example as a printed circuit board appropriately connected to and forming part of the locking apparatus.
- An embodiment of the invention will now be described solely by way of example with reference to the accompanying drawings in which:
- Figure 1 is a generally schematic diagram of the b a safe door showing a lock and bolt arrangement;
- Figure 2 is a front view of the door shown in Figure 1 showing a battery box and indicator light arrangement; and
- Figure 3 is an enlarged view of a part of the bolt and lock arrangement shown in Figure 1.
- Referring now to Figure 1, a
safe door 2 is fitted with a locking bolt 4 which enters into a complementary recess (not shown) of a door frame for security purposes. The bolt 4 is operatively associated with a bolt withdrawal mechanism (not shown) and aclockwork time lock 6. Thetime lock 6 includes alocking bar 8 which serves to prevent withdrawal of the bolt 4 during specified time periods set on the time lock. When thetime lock 6 operates to enable the bolt 4 to be released, thelocking bar 8 is moved in the direction of thearrow 10 but the bolt 4 can still not be moved in the direction of thearrow 12 to be withdrawn, because an electrically operated locking device in the form of asolenoid lock 14 is arranged to retain the bolt 4 in position. - As shown in Figure 3, the
solenoid lock 14 comprises alatch plate 16 which normally engages acomplementary slot 18 in the bolt 4. However, when asolenoid 20 is energised thelatch plate 16 is constrained to move in the direction indicated byarrow 22 so as to release the bolt 4. Relocking of thedoor 2 causes resetting of the locking apparatus. - The
solenoid 20 of thesolenoid lock 14 is arranged to be fed with electrical energy via atimer 24 as shown in Figure 1. Thetimer 24 is arranged to be started into operation consequent upon activation of a sensor in the form of amicroswitch 25 which is contained in alock 26. Thelock 26 has akeyhole 27 and themicroswitch 25 is operated when akey 29 is inserted into thekeyhole 27 and turned to move thelock 26 from its locked to its unlocked condition. Thesolenoid 20 is fed with power from rechargeable batteries in abattery box 28, and the operative state of thesolenoid 20 is indicated by anindicator light arrangement 30 comprising ared light 32 and agreen light 34. Thegreen light 34 is lit when thesolenoid 20 is operated so that the bolt 4 can be withdrawn and thered light 32 is operated when the bolt 4 is retained by thelatch plate 16 which normally falls under gravity into theslot 18. As an alternative to thelights solenoid 20 is operated and the bolt can be withdrawn. Thesolenoid 20 only operates for a short period of time, for example 15 or 30 seconds and the safe door must be opened in this time. If the safe door is not opened in this time, then thesolenoid 20 will cease to operate and thelatch plate 16 will fall back into theslot 18 and it will not be possible to open the safe door. The key 29 must be re-introduced into thekeyhole 27 to restart the entire sequence of operations. Thesolenoid 20 is advantageously arranged to restart its period of operation each time thekey 29 is inserted into thekeyhole 27. - Although the
timer 24 may provide any predetermined time delay period, for example of from 1 to 15 minutes or more, it is envisaged that thetimer 24 might normally provide a delay of approximately 5 minutes. Thetimer 24 may comprise a solid state timer device. By providing an electrical solid state timer, it is possible precisely to set the delay period and the precise delay can easily be altered as may be desired. - Locking apparatus according to the present invention has the advantage that a predetermined period of time is bought between insertion of a key in the
keyhole 26 and the opening of a safe with which the lock is associated, whereby raiders are thwarted. The locking apparatus is clearly of great use in banks and post offices and it is particularly advantageous in that one key only is required which serves to release the normal bolt operating mechanism (not shown) and to operate theelectrical timer 24. Although a lock as just before described is eminently suitable for safes and strong rooms it is envisaged that locks in accordance with the present invention may be fitted to tills and other secure containers for valuables. The tills and other secure containers may then be fitted with a locking bar. During normal use, they can be left open and they can be closed at the slightest hint of a possible robbery. Reopening of the tills or other secure containers can then easily be effected but it will necessitate waiting for the pre-set time period, which pre-set time period will usually be longer than a raider can safely wait. - It will be appreciated that the
solenoid lock 14 can form part of or can be separate from thetime lock 6. Also advantageously, the locking apparatus is provided with a protector mechanism (not shown) for ensuring that the locking device remains in the desired locking position even if the safe, till or the like is inverted. If desired, thelock 26 can be a combination operated lock instead of a key operated lock. Advantageously, the locking apparatus is provided with over-ride means (not shown) for preventing operation of the locking apparatus during predeterminable set times that may be set by an operator. Thus for example, an operator might set the over-ride means so that the locking apparatus cannot be opened during the night and say until 10.00 a.m. the next morning so that a raider cannot kidnap the operator during the night, obtain the key or combination and have the peace of the night to wait for the time delay afforded by the locking device to lapse.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8210197 | 1982-04-06 | ||
GB8210197 | 1982-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0091314A1 true EP0091314A1 (en) | 1983-10-12 |
EP0091314B1 EP0091314B1 (en) | 1986-07-23 |
Family
ID=10529558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19830301909 Expired EP0091314B1 (en) | 1982-04-06 | 1983-04-05 | Locking apparatus |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0091314B1 (en) |
DE (1) | DE3364642D1 (en) |
GB (1) | GB2117823B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622237A1 (en) * | 1987-10-27 | 1989-04-28 | Stb Microtechniques Sa | CONTROL DEVICE FOR TIMED OPENING OF A SECURITY LOCK |
US5890439A (en) * | 1997-01-21 | 1999-04-06 | Mcgunn; Edward T. | Safe deposit box assembly |
US5979198A (en) * | 1997-09-04 | 1999-11-09 | Sphinx Elektronik Gmbh | Locking mechanism with emergency opening feature useful for a safe or vault |
CN102936979A (en) * | 2012-04-16 | 2013-02-20 | 大连鼎信机电技术有限公司 | Mechanical and electrical integrated interlocking control device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135380B (en) * | 1983-02-11 | 1987-04-01 | Fox & Company Limited Thomas | A time lock |
GB8501148D0 (en) * | 1985-01-17 | 1985-02-20 | Fox Thomas Co Ltd | Building/vehicle with interlocking doors |
US4799719A (en) * | 1987-06-18 | 1989-01-24 | George Wood | Motor operated lock |
FI934580A (en) * | 1993-01-27 | 1994-07-28 | Markku Olavi Korhonen | Safe box with associated disassembly systems and procedures |
BE1010487A6 (en) | 1996-06-11 | 1998-10-06 | Unilin Beheer Bv | FLOOR COATING CONSISTING OF HARD FLOOR PANELS AND METHOD FOR MANUFACTURING SUCH FLOOR PANELS. |
GB2330375B (en) * | 1997-09-15 | 2001-10-10 | Surelock Mcgill Ltd | Lock mechanism |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211361A1 (en) * | 1972-03-09 | 1973-09-27 | Hauni Werke Koerber & Co Kg | SECURITY ARRANGEMENT AT THE ACCESS TO A ROOM CONTAINING VALUABLES |
DE2252985A1 (en) * | 1972-10-28 | 1974-05-09 | Hauni Werke Koerber & Co Kg | SECURITY ARRANGEMENT FOR A DOOR OF A SAFE |
DE7814258U1 (en) * | 1978-02-07 | 1978-10-12 | Lips Vago S.P.A., Cernusco Sul Naviglio, Mailand (Italien) | SAFE WITH COMBINATION LOCK FOR DELAYED UNLOCKING AND HULL SAFETY WARNING SIGNALS |
DE2808391A1 (en) * | 1978-02-27 | 1979-09-06 | Erpelding Karl Heinz | Safe lock with short delay release mechanism - has bolt force-locked to swivel lever on spring-activated timing mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL49707A (en) * | 1976-06-02 | 1978-03-10 | Tamiron Electronics Ltd | Delay-timing device for unlocking safes or the like |
DE2634107C3 (en) * | 1976-07-29 | 1982-01-14 | Theodor Kromer GmbH & Co KG Spezialfabrik für Sicherheitsschlösser, 7801 Umkirch | Time lock |
-
1983
- 1983-04-05 GB GB08309247A patent/GB2117823B/en not_active Expired
- 1983-04-05 DE DE8383301909T patent/DE3364642D1/en not_active Expired
- 1983-04-05 EP EP19830301909 patent/EP0091314B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211361A1 (en) * | 1972-03-09 | 1973-09-27 | Hauni Werke Koerber & Co Kg | SECURITY ARRANGEMENT AT THE ACCESS TO A ROOM CONTAINING VALUABLES |
DE2252985A1 (en) * | 1972-10-28 | 1974-05-09 | Hauni Werke Koerber & Co Kg | SECURITY ARRANGEMENT FOR A DOOR OF A SAFE |
DE7814258U1 (en) * | 1978-02-07 | 1978-10-12 | Lips Vago S.P.A., Cernusco Sul Naviglio, Mailand (Italien) | SAFE WITH COMBINATION LOCK FOR DELAYED UNLOCKING AND HULL SAFETY WARNING SIGNALS |
DE2808391A1 (en) * | 1978-02-27 | 1979-09-06 | Erpelding Karl Heinz | Safe lock with short delay release mechanism - has bolt force-locked to swivel lever on spring-activated timing mechanism |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622237A1 (en) * | 1987-10-27 | 1989-04-28 | Stb Microtechniques Sa | CONTROL DEVICE FOR TIMED OPENING OF A SECURITY LOCK |
WO1989003922A1 (en) * | 1987-10-27 | 1989-05-05 | S.T.B. Microtechniques S.A. | Control device for the delayed opening of a safety lock |
US5890439A (en) * | 1997-01-21 | 1999-04-06 | Mcgunn; Edward T. | Safe deposit box assembly |
US5979198A (en) * | 1997-09-04 | 1999-11-09 | Sphinx Elektronik Gmbh | Locking mechanism with emergency opening feature useful for a safe or vault |
CN102936979A (en) * | 2012-04-16 | 2013-02-20 | 大连鼎信机电技术有限公司 | Mechanical and electrical integrated interlocking control device |
CN102936979B (en) * | 2012-04-16 | 2015-04-15 | 大连鼎信机电技术有限公司 | Mechanical and electrical integrated interlocking control device |
Also Published As
Publication number | Publication date |
---|---|
GB2117823A (en) | 1983-10-19 |
GB8309247D0 (en) | 1983-05-11 |
EP0091314B1 (en) | 1986-07-23 |
DE3364642D1 (en) | 1986-08-28 |
GB2117823B (en) | 1985-06-26 |
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