GB1530591A - Combination of a door frame a door and a door latch - Google Patents
Combination of a door frame a door and a door latchInfo
- Publication number
- GB1530591A GB1530591A GB4894074A GB4894074A GB1530591A GB 1530591 A GB1530591 A GB 1530591A GB 4894074 A GB4894074 A GB 4894074A GB 4894074 A GB4894074 A GB 4894074A GB 1530591 A GB1530591 A GB 1530591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- magnet
- magnets
- poles
- bore
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extensible Doors And Revolving Doors (AREA)
Abstract
1530591 Magnetic door latch TIMBER RESEARCH & DEVELOPMENT ASSOCIATION 12 Nov 1975 [12 Nov 1974] 48940/74 Heading E2A A door (11) is held in its correct closed position by a latch comprising a pair of magnets 14, 15, the magnet 14 being slidable vertically in a bore 16 in the top surface of the door (11) and the magnet 15 being fixed in a bore in a lintel of the door frame (12), (or vice versa) so that the magnets 14, 15 are in alignment when the door (11) is closed centrally in the frame (12) the magnet 14 sliding under the action of the magnetic attractive forces into engagement with magnet 15. The door (11) may be a door opening in one direction only but in the embodiments illustrated the door (11) is a swing door. In the embodiment of Figures 1, 2 the magnets 14, 15 are button magnets, with opposite poles on approximately semicylindrical sections on either side of a slot 17. The slidable magnet 14 is located in bore 16 on a central pin 21 (or alternatively on a pair of non-ferrous vertical pins in side slots in the magnet). If the door swings rapidly there will be insufficient time to lift the magnet 14, but if the door closes slowly like poles of the magnets will first repel each other, and then unlike poles will attract each other to provide a final closing force to the door. In opening the door, the magnetic attractive forces between unlike poles first resists such opening but once the door has started to open the repulsive forces between like poles assists such opening. In the arrangement of Figure 3 the magnet 14 slides in a cup 23 which is itself slidable vertically on the pin 21 in the bore 16, a compression spring 24 urging the magnet against stops (not shown). On either side of the magnet 15 in the lintel is a button 25 which cooperate with bevelled edges 26 of the magnet 14 as the door is closed; the buttons 25 also prevent the door being opened unless a substantial thrust is applied thereto. The buttons (25) can have a steeper curved head away from the magnet (15) (see Figure 4, not shown) or vice versa. Where buttons (25) are used, conventional flat magnets can replace the button magnets. As an alternative to the button a bent leaf spring (28) is pinned to the frame (see Figure 5, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4894074A GB1530591A (en) | 1975-11-12 | 1975-11-12 | Combination of a door frame a door and a door latch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4894074A GB1530591A (en) | 1975-11-12 | 1975-11-12 | Combination of a door frame a door and a door latch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1530591A true GB1530591A (en) | 1978-11-01 |
Family
ID=10450525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4894074A Expired GB1530591A (en) | 1975-11-12 | 1975-11-12 | Combination of a door frame a door and a door latch |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1530591A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4561130A (en) * | 1984-06-05 | 1985-12-31 | Dewey Bumgardner | Toilet seat cover safety latch |
US4840411A (en) * | 1987-02-13 | 1989-06-20 | Harrow Products, Inc. | Electromagnetic shear lock |
US5884683A (en) * | 1997-07-03 | 1999-03-23 | Sears; Michael R. | System for converting sliding doors to hung doors |
EP1048811A1 (en) * | 1999-04-27 | 2000-11-02 | Gerd Tomaschek | System for opening a door |
GB2366832A (en) * | 2000-09-13 | 2002-03-20 | Metal Merlin Ltd | Magnetic fastener |
WO2005090725A1 (en) * | 2004-03-16 | 2005-09-29 | Res S.R.L. | Auxiliary device for bidirectional opening of wings of doors, windows, or the like |
WO2009006888A2 (en) * | 2007-07-12 | 2009-01-15 | Fidlock Gmbh | Magnetic closure with an opening-assisting spring |
WO2009142513A1 (en) * | 2008-05-20 | 2009-11-26 | Roderick Nigel Redgrave | A closure mechanism |
FR2953246A1 (en) * | 2009-11-30 | 2011-06-03 | Jacques Afriat | System for positioning end door of cupboard, has circular magnet placed on structure so that another circular magnet is attracted by former magnet so as to be moved from lower position to raised position and stuck with former magnet |
DE102010044144B3 (en) * | 2010-11-18 | 2012-05-31 | Fidlock Gmbh | closure device |
US20160258200A1 (en) * | 2015-03-04 | 2016-09-08 | Bobrick Washroom Equipment, Inc. | Partition and closing system for partition |
US20170130483A1 (en) * | 2015-11-05 | 2017-05-11 | William Scott Howell | Latch with magnetic hold-open and magnetic hold-close |
WO2017117628A1 (en) * | 2016-01-07 | 2017-07-13 | Hgt Innovations Pty Ltd | A door stop |
EP3499522A1 (en) * | 2017-12-18 | 2019-06-19 | Gunter Höher | Magnetic coupling |
IT201900001531A1 (en) * | 2019-02-01 | 2020-08-01 | Alban Giacomo Spa | Magnetic induction closing device for windows and doors |
IT201900001525A1 (en) * | 2019-02-01 | 2020-08-01 | Alban Giacomo Spa | Window frame, method for making a window frame and magnetic induction closing device for doors and windows |
IT202100012854A1 (en) * | 2021-05-18 | 2021-08-18 | Verum Italy S R L | Improved magnetic door stop system |
-
1975
- 1975-11-12 GB GB4894074A patent/GB1530591A/en not_active Expired
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4561130A (en) * | 1984-06-05 | 1985-12-31 | Dewey Bumgardner | Toilet seat cover safety latch |
US4840411A (en) * | 1987-02-13 | 1989-06-20 | Harrow Products, Inc. | Electromagnetic shear lock |
US5884683A (en) * | 1997-07-03 | 1999-03-23 | Sears; Michael R. | System for converting sliding doors to hung doors |
EP1048811A1 (en) * | 1999-04-27 | 2000-11-02 | Gerd Tomaschek | System for opening a door |
GB2366832A (en) * | 2000-09-13 | 2002-03-20 | Metal Merlin Ltd | Magnetic fastener |
GB2366832B (en) * | 2000-09-13 | 2004-06-23 | Metal Merlin Ltd | Magnetic fasteners |
WO2005090725A1 (en) * | 2004-03-16 | 2005-09-29 | Res S.R.L. | Auxiliary device for bidirectional opening of wings of doors, windows, or the like |
CN101842030B (en) * | 2007-07-12 | 2012-02-22 | 费得洛克有限公司 | Magnetic closure with an opening-assisting spring |
WO2009006888A2 (en) * | 2007-07-12 | 2009-01-15 | Fidlock Gmbh | Magnetic closure with an opening-assisting spring |
WO2009006888A3 (en) * | 2007-07-12 | 2009-08-13 | Fidlock Gmbh | Magnetic closure with an opening-assisting spring |
US8851534B2 (en) | 2007-07-12 | 2014-10-07 | Fidlock Gmbh | Magnetic closure with an opening-assisting spring |
GB2472171B (en) * | 2008-05-20 | 2012-09-26 | Roderick Nigel Redgrave | A closure mechanism |
GB2472171A (en) * | 2008-05-20 | 2011-01-26 | Roderick Nigel Redgrave | A closure mechanism |
AU2009249902B2 (en) * | 2008-05-20 | 2013-08-22 | Roderick Nigel Redgrave | A closure mechanism |
WO2009142513A1 (en) * | 2008-05-20 | 2009-11-26 | Roderick Nigel Redgrave | A closure mechanism |
US8864188B2 (en) | 2008-05-20 | 2014-10-21 | Roderick Nigel Redgrave | Closure mechanism |
FR2953246A1 (en) * | 2009-11-30 | 2011-06-03 | Jacques Afriat | System for positioning end door of cupboard, has circular magnet placed on structure so that another circular magnet is attracted by former magnet so as to be moved from lower position to raised position and stuck with former magnet |
DE102010044144B3 (en) * | 2010-11-18 | 2012-05-31 | Fidlock Gmbh | closure device |
US8739371B2 (en) | 2010-11-18 | 2014-06-03 | Fidlock Gmbh | Locking device |
US9879461B2 (en) * | 2015-03-04 | 2018-01-30 | Bobrick Washroom Equipment, Inc. | Partition and closing system for partition |
US20160258200A1 (en) * | 2015-03-04 | 2016-09-08 | Bobrick Washroom Equipment, Inc. | Partition and closing system for partition |
US20170130483A1 (en) * | 2015-11-05 | 2017-05-11 | William Scott Howell | Latch with magnetic hold-open and magnetic hold-close |
US9963913B2 (en) * | 2015-11-05 | 2018-05-08 | William Scott Howell | Latch with magnetic hold-open and magnetic hold-close |
WO2017117628A1 (en) * | 2016-01-07 | 2017-07-13 | Hgt Innovations Pty Ltd | A door stop |
CN108603390A (en) * | 2016-01-07 | 2018-09-28 | Hgt创新私人公司 | Door shield |
US11187019B2 (en) | 2016-01-07 | 2021-11-30 | Hgt Innovations Pty Ltd | Door stop |
EP3499522A1 (en) * | 2017-12-18 | 2019-06-19 | Gunter Höher | Magnetic coupling |
IT201900001531A1 (en) * | 2019-02-01 | 2020-08-01 | Alban Giacomo Spa | Magnetic induction closing device for windows and doors |
IT201900001525A1 (en) * | 2019-02-01 | 2020-08-01 | Alban Giacomo Spa | Window frame, method for making a window frame and magnetic induction closing device for doors and windows |
IT202100012854A1 (en) * | 2021-05-18 | 2021-08-18 | Verum Italy S R L | Improved magnetic door stop system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |