GB1227198A - - Google Patents
Info
- Publication number
- GB1227198A GB1227198A GB1227198DA GB1227198A GB 1227198 A GB1227198 A GB 1227198A GB 1227198D A GB1227198D A GB 1227198DA GB 1227198 A GB1227198 A GB 1227198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- capacitive detector
- oct
- capacitance
- parts
- 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
- 239000004020 conductor Substances 0.000 abstract 6
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/46—Detection using safety edges responsive to changes in electrical capacitance
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators
Landscapes
- Electronic Switches (AREA)
Abstract
1,227,198. Proximity detectors. EXPRESS LIFT CO. Ltd. Oct.24, 1969 [Oct.31, 1968], No.51709/68. Heading G1N. [Also in Divisions E2 and H2] An electric motor closing the sliding door of a lift is reversed when a mechanical or a capacitive detector detects a body in the path of the door. The capacitive detector comprises two vertical parallel conductors embedded in the strip. The capacitance between the two conductors forms one arm of a bridge circuit, the other arms being formed by an adjustable capacitor and the two parts of a tapped inductance or, alternatively, the two parts of a transformer winding. When the conductors approach a body the capacitance between them alters, and a signal appears at the bridge output. The signal is amplified to actuate contact points to reverse the motor. The sensitivity of the capacitive detector may be varied by using conductors of different length, or by using three or more conductors where each pair of conductors has a different spacing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5170968 | 1968-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1227198A true GB1227198A (en) | 1971-04-07 |
Family
ID=10461075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1227198D Expired GB1227198A (en) | 1968-10-31 | 1968-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1227198A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069104A1 (en) * | 2002-02-15 | 2003-08-21 | Wittur S.P.A. | Pinching-prevention device for automatic doors, in particular for lifts and/or elevators |
| CN105971438A (en) * | 2016-06-21 | 2016-09-28 | 宁波中车时代传感技术有限公司 | Transmission mechanism of vehicle door system |
| CN106285280A (en) * | 2015-06-03 | 2017-01-04 | 上海三菱电梯有限公司 | The capacitance type sensor anti-pinch detection device of sliding door |
-
1968
- 1968-10-31 GB GB1227198D patent/GB1227198A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069104A1 (en) * | 2002-02-15 | 2003-08-21 | Wittur S.P.A. | Pinching-prevention device for automatic doors, in particular for lifts and/or elevators |
| CN106285280A (en) * | 2015-06-03 | 2017-01-04 | 上海三菱电梯有限公司 | The capacitance type sensor anti-pinch detection device of sliding door |
| CN106285280B (en) * | 2015-06-03 | 2018-10-19 | 上海三菱电梯有限公司 | The capacitance type sensor anti-pinch detection device of sliding door |
| CN105971438A (en) * | 2016-06-21 | 2016-09-28 | 宁波中车时代传感技术有限公司 | Transmission mechanism of vehicle door system |
| CN105971438B (en) * | 2016-06-21 | 2018-06-22 | 宁波中车时代传感技术有限公司 | A kind of transmission mechanism of door device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |