GB1495393A - Elevator system with object detection means - Google Patents
Elevator system with object detection meansInfo
- Publication number
- GB1495393A GB1495393A GB53092/74A GB5309274A GB1495393A GB 1495393 A GB1495393 A GB 1495393A GB 53092/74 A GB53092/74 A GB 53092/74A GB 5309274 A GB5309274 A GB 5309274A GB 1495393 A GB1495393 A GB 1495393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- switches
- relay
- detectors
- contacts
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
Landscapes
- Elevator Door Apparatuses (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
1495393 Control of D.C. motors WESTING- HOUSE ELECTRIC CORP 9 Dec 1974 [18 Dec 1973] 53092/74 Heading H2J [Also in Division E2] An object detection door control mechanism for a lift car door comprises two object detection means either of which is designed to stop door movement when actuated: the first means involves a radiant energy (preferably infra-red) source (60, 64) mounted on the door and directed at a sill portion 74 of the entranceway and a detector means (62, 66) on the door directed at the sill portion; the second means comprises a ribbon switch (KS1, RS2) located along the door edge. As shown centre-opening sliding doors 5, A5 are moved by an electric motor 25 via a lever-and-link mechanism and each door is provided with detection means as described. The surface of the sill portion 74 is designed to scatter the reflected radiation (i.e. rough bronze or aluminium oxide in epoxy resin binder) and the detector means intercept only that radiation scattered parallel to the door edge. Each detector means includes inner (D2, D4) and outer (D1, D3) detectors which respond to radiation from separate T1, T2, T3, T4 transmitters to define inner R70 and outer R68 beams and as the doors near closure limit switches L1, L2 are actuated in turn by cam C1 to render first the outer, then the inner detectors inoperative. The ribbon switches (Fig. 3) comprise spaced conductors 200, 202 set in a plastics or rubber jacket 204 and are connected (Fig. 4, not shown) such that when pressure on a switch causes contact of the conductors, a relay (222) is de-energized to open contacts 224 controlling the safety relay DR in the motor control circuit shown in Fig. 5. A spacer 208 prevents the switches actuating each other in the closed position. The circuit of Fig. 5 is the same as that described and shown in Fig. 4 of copending application 53091/74 Serial No. 1,495,392, except for the omission of the monitor relay (M) and the sources (120, 122) controlled thereby and the replacement of the detector contacts (C102, C104, C114, C116, C112 C112<SP>1</SP>) and the limit switch (108) by the contacts B1 ... B4 of detectors D1 ... D4 and limit switches L1, L2. The latter detectors and switches are similar to those described in copending application 53093/75 Serial No. 1,495,392, whose motor control circuit omits the ribbon switches and the relay 222, 224. The switches L1, L2 operate sequentially during door closing to cut out detectors D1 ... D4 when the doors reach the point where reflection from the sill will be interrupted by the opposite door section. Opening of contacts 224 de-energizes relay DR to provide back-up protection should the detector system fail in a mode permitting the doors to operate. Contacts 224 may be shunted by switch L2 or may (with member 222) be replaced by a solid state relay.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US425920A US3868000A (en) | 1973-12-18 | 1973-12-18 | Closure system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1495393A true GB1495393A (en) | 1977-12-21 |
Family
ID=23688580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB53092/74A Expired GB1495393A (en) | 1973-12-18 | 1974-12-09 | Elevator system with object detection means |
Country Status (9)
Country | Link |
---|---|
US (1) | US3868000A (en) |
JP (1) | JPS5437741B2 (en) |
BE (1) | BE823496A (en) |
BR (1) | BR7410466D0 (en) |
CA (1) | CA1010584A (en) |
DE (1) | DE2459674A1 (en) |
FR (1) | FR2254508B1 (en) |
GB (1) | GB1495393A (en) |
IT (1) | IT1024060B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277775A (en) * | 1993-05-07 | 1994-11-09 | Hsueh Shou Lu | Safety device for motorized doors |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227592A (en) * | 1978-12-22 | 1980-10-14 | Foreman Floyd L | Duplex door safety recycling system |
US4621452A (en) * | 1985-01-18 | 1986-11-11 | Deeg Wyman L | Powered sliding door safety system |
US4851746A (en) * | 1987-04-15 | 1989-07-25 | Republic Industries, Inc. | Sensing apparatus for automatic door |
US5357183A (en) * | 1992-02-07 | 1994-10-18 | Lin Chii C | Automatic control and safety device for garage door opener |
US5247232A (en) * | 1992-02-07 | 1993-09-21 | Lin Chii C | Automatic garage door control device |
US5656898A (en) * | 1995-07-12 | 1997-08-12 | Kalina; Edward T. | Sliding door apparatus |
JP2003040564A (en) * | 2001-07-26 | 2003-02-13 | Mitsubishi Electric Corp | Elevator car, elevator system, and landing device |
US6689970B2 (en) * | 2001-10-04 | 2004-02-10 | Lester E. Burgess | Pressure actuated switching device and method and system for making same |
US7211975B2 (en) * | 2002-05-10 | 2007-05-01 | Wayne-Dalton Corp. | Motorized barrier operator system adaptable to different safety configurations and methods for programming the same |
ITMI20050343U1 (en) * | 2005-10-03 | 2007-04-04 | Sematic Italia Spa | SAFETY DEVICE FOR LIFT DOORS |
JP2007308929A (en) * | 2006-05-17 | 2007-11-29 | Aisin Seiki Co Ltd | Vehicle door opening/closing control device |
DE202006013337U1 (en) * | 2006-08-30 | 2008-01-03 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | pinch |
JP4933237B2 (en) * | 2006-12-06 | 2012-05-16 | 株式会社日立製作所 | Elevator door equipment |
GB2589113B (en) | 2019-11-20 | 2021-11-17 | Kingsway Enterprises Uk Ltd | Pressure monitor |
GB202018613D0 (en) | 2020-11-26 | 2021-01-13 | Kingsway Enterprises Uk Ltd | Anti-ligature device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1511055A (en) * | 1921-09-29 | 1924-10-07 | James L Entwistle | Circuit closer for car doorways |
US1947079A (en) * | 1929-05-31 | 1934-02-13 | Westinghouse Elec Elevator Co | Safety device for vehicle doors |
US2637878A (en) * | 1949-07-28 | 1953-05-12 | William C Watkins | Combined door and window |
US2953219A (en) * | 1954-12-24 | 1960-09-20 | Westinghouse Electric Corp | Door control apparatus |
US2843690A (en) * | 1956-10-18 | 1958-07-15 | Miller Bros | Safety edge for hangar door |
US3321592A (en) * | 1966-07-21 | 1967-05-23 | Miller Bros | Safety closure edge |
US3627082A (en) * | 1970-04-07 | 1971-12-14 | Westinghouse Electric Corp | Elevator door safety device |
US3710050A (en) * | 1970-09-14 | 1973-01-09 | A Richards | Electronic pressure sensitive switch |
-
1973
- 1973-12-18 US US425920A patent/US3868000A/en not_active Expired - Lifetime
-
1974
- 1974-12-03 CA CA215,161A patent/CA1010584A/en not_active Expired
- 1974-12-09 GB GB53092/74A patent/GB1495393A/en not_active Expired
- 1974-12-16 BR BR10466/74A patent/BR7410466D0/en unknown
- 1974-12-17 DE DE19742459674 patent/DE2459674A1/en active Pending
- 1974-12-17 IT IT41733/74A patent/IT1024060B/en active
- 1974-12-18 JP JP14456674A patent/JPS5437741B2/ja not_active Expired
- 1974-12-18 FR FR7441844A patent/FR2254508B1/fr not_active Expired
- 1974-12-18 BE BE151624A patent/BE823496A/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277775A (en) * | 1993-05-07 | 1994-11-09 | Hsueh Shou Lu | Safety device for motorized doors |
Also Published As
Publication number | Publication date |
---|---|
CA1010584A (en) | 1977-05-17 |
IT1024060B (en) | 1978-06-20 |
BE823496A (en) | 1975-06-18 |
US3868000A (en) | 1975-02-25 |
FR2254508A1 (en) | 1975-07-11 |
DE2459674A1 (en) | 1975-06-26 |
JPS5095942A (en) | 1975-07-30 |
FR2254508B1 (en) | 1977-07-08 |
AU7629174A (en) | 1976-06-17 |
BR7410466D0 (en) | 1975-09-16 |
JPS5437741B2 (en) | 1979-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |