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WO2003069104A1 - Pinching-prevention device for automatic doors, in particular for lifts and/or elevators - Google Patents

Pinching-prevention device for automatic doors, in particular for lifts and/or elevators Download PDF

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Publication number
WO2003069104A1
WO2003069104A1 PCT/IT2002/000496 IT0200496W WO03069104A1 WO 2003069104 A1 WO2003069104 A1 WO 2003069104A1 IT 0200496 W IT0200496 W IT 0200496W WO 03069104 A1 WO03069104 A1 WO 03069104A1
Authority
WO
WIPO (PCT)
Prior art keywords
pinching
wings
opening
wing
doors
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.)
Ceased
Application number
PCT/IT2002/000496
Other languages
French (fr)
Inventor
Paolo Giorgioni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wittur SpA
Original Assignee
Wittur SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wittur SpA filed Critical Wittur SpA
Priority to EP02760556A priority Critical patent/EP1474582B1/en
Priority to AT02760556T priority patent/ATE294314T1/en
Priority to AU2002326147A priority patent/AU2002326147A1/en
Priority to DE60203946T priority patent/DE60203946T2/en
Publication of WO2003069104A1 publication Critical patent/WO2003069104A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • 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

Definitions

  • the present invention relates to a pinching-prevention device for automatic doors, in particular for lifts and/or elevators of the type comprising one or more sliding wings with telescopic opening or with central opening.
  • known safety devices are destined to prevent accidental pinching of the users, both between the abutment surfaces of the wings during their closure phase, and in the gap present between two wings with telescopic opening or between a sliding wing and a jamb, during the opening of the wings.
  • known devices are generally based on photoelectric cell systems in which the interruption of a light beam reveals the presence of an obstacle between the wings.
  • the use may also be provided, for the same purpose, of pressure sensors that detect the presence of a person between the wings and command the inversion of the motion of the wings themselves and the reopening of the door.
  • the safety device disclosed in the patent for industrial invention IT 1272823.
  • Said device solves the problem of the possible pinching of the users, in particular of their fingers, by using means so shaped as to constitute a movable surface which is positioned between the wing and the external frame or jamb, and which, when impacted, moves activating a device for arresting the actuation of the wing and possibly for inverting the direction of actuation.
  • Said movable surface is preferably obtained with a section bar made of metal or rubber applied to means for connecting with the jamb and able to operate a micro-switch for arresting the actuation of the wing.
  • An aim of the present invention is to eliminate the aforesaid drawbacks by making available a pinching-prevention device for automatic doors, in particular for lifts and/or elevators, that is suitable for being employed, during the closure and/or opening phase, both in doors with centrally opening wings and with telescopically opening wings.
  • Another aim of the present invention is to propose a pinching-prevention device whose shape and dimensions are such as to be suitable for protecting both the gaps between wing and jamb and those between two or more wings.
  • a further aim of the present invention is to obtain a pinching-prevention device that is suitable for being installed on transparent wings, without compromising their appearance.
  • Another aim of the present invention is to provide a pinching-prevention device that is extremely sensitive and allows to invert the motion of the wings in the presence of obstacles, both during the opening phase and during the closing phase of the doors.
  • An additional aim of the present invention is to obtain this in simple and economical fashion.
  • the pinching-prevention device for automatic doors of the present invention which is characterised by the content of the claims set out below and in particular in that it comprises at least a capacitive sensor fastened to wings or positioned in correspondence with an exterior frame or jamb, to prevent the pinching of things or persons during the opening and/or closing of the doors.
  • Figure 1 shows an axonometric view of a wing made of transparent material and provided with a device according to the invention
  • Figure 2 shows an enlarged view of the device shown in Figure 1;
  • Figure 3 shows an axonometric view of a wing made of metallic material and provided with a device according to the invention
  • Figure 4 shows an enlarged view of the wing shown in Figure 3 in which a device according to the invention is noted.
  • the pmching-prevention device according to the invention is globally indicated with the number 1 and originally comprises a capacitive sensor 2 fastened to a shoulder 3 of a wing 4, preferably made of transparent material ( Figures 1 and 2) or of a metallic material ( Figures 3 and 4).
  • a capacitive sensor 2 fastened to a shoulder 3 of a wing 4
  • Figures 3 and 4 preferably made of transparent material
  • Figures 3 and 4 preferably made of transparent material
  • Figures 3 and 4 a metallic material
  • the device 1, installed on a wing as shown in the figures, allows to prevent pinching the users, both during the closure phase of the doors, if the shoulder 3 defines an abutment surface against an external frame or against a corresponding abutment surface belonging to another wing for doors with central opening, and during the opening phase, if the shoulder 3 is superposed to another wing, for sliding doors with telescopic opening.
  • the device 1 prevents the accidental pinching of user's fingers in the gap present between a wing and a jamb or between two sliding wings with telescopic opening.
  • the capacitive sensor 2 is a substantially plate-like or wire-like element connected by means of cables 5 to a battery or to the electrical mains and preferably positioned along an entire development in height of the wing whereon it is installed.
  • Said plate-like or wire-like element is preferably coated with a coating body made, for instance, of metal, wood, ceramic, plastic or glass.
  • the operation of the device 1 is based on the fact that the sensor 2 is able to detect changes in the electric field through the coating body, caused by contact with obstacles, such as a user's body or fingers.
  • the device 1 can be associated to electronic means for controlling and commanding the opening and closing of the doors, typically a known operating panel. In this way, the sensor 2, generating an appropriate electrical signal, allows the operating panel automatically to invert the motion of the doors, making them reopen or re-close depending on the area where the obstacle is located.
  • the capacitive sensor 3 is housed inside a groove 6 and is not directly exposed to contact with any obstacle.
  • the walls of the groove 6 itself define the coating body through which the sensor 2 detects the variation of the electrical field, to signal the presence of an obstacle, both during the opening phase and during the closing phase of the wings.
  • the invention achieves important advantages. First of all, such a device prevents accidental pinching of the users, both during the opening phase and during the closing phase of the doors and applies indifferently to doors with central opening and to sliding doors with telescopic opening.
  • such a device has such dimensions as to be able to protect the gaps between wing and jamb and/or between two or more wings, in order to prevent pinching the fingers of users, and especially of children.
  • such a device can be installed on clear wings, without compromising their appearance.
  • Another advantage is represented by the fact that the capacitive sensor 2 is extremely sensitive and can be associated to an operating panel to allow the inversion of the motion of the wings in the presence of obstacles, both during the opening phase and during the closing phase of the wings.
  • such a device is simple and economical to install.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Elevator Door Apparatuses (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Crushing And Grinding (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

Pinching-prevention device (1) for automatic doors, in particular for lifts and/or elevators, originally comprising at least a capacitive sensor (2) fastened to at least a wing (4) or positioned in correspondence with an external frame or jamb, to prevent the pinching of things or persons during the opening and/or closing phase of the doors.

Description

PINCHING-PREVENTION DEVICE FOR AUTOMATIC DOORS, IN PARTICULAR FOR LIFTS AND/O'RELEVATORS
TECHNICAL FIELD AND BACKGROUND ART. The present invention relates to a pinching-prevention device for automatic doors, in particular for lifts and/or elevators of the type comprising one or more sliding wings with telescopic opening or with central opening. In the field of lifts and elevators, known safety devices are destined to prevent accidental pinching of the users, both between the abutment surfaces of the wings during their closure phase, and in the gap present between two wings with telescopic opening or between a sliding wing and a jamb, during the opening of the wings.
To prevent users from being pinched between the abutment surfaces of the wings during their closure phase, known devices are generally based on photoelectric cell systems in which the interruption of a light beam reveals the presence of an obstacle between the wings.
The use may also be provided, for the same purpose, of pressure sensors that detect the presence of a person between the wings and command the inversion of the motion of the wings themselves and the reopening of the door.
All the devices described above are activated in the closure phase and serve solely to prevent a person from remaining pinched and/or trapped between the wings.
In regard to devices able to prevent the pinching of users in the gap present between two wings with telescopic opening or between a sliding wings and a jamb during the opening phase of the wings themselves, the safety device disclosed in the patent for industrial invention IT 1272823. Said device solves the problem of the possible pinching of the users, in particular of their fingers, by using means so shaped as to constitute a movable surface which is positioned between the wing and the external frame or jamb, and which, when impacted, moves activating a device for arresting the actuation of the wing and possibly for inverting the direction of actuation. Said movable surface is preferably obtained with a section bar made of metal or rubber applied to means for connecting with the jamb and able to operate a micro-switch for arresting the actuation of the wing.
Said device, however, was provided for use between the wing and the jamb, but in the case of doors with multiple wings, in particular with telescopic opening, the problem of pinching could emerge even in the gaps present between two contiguous wings. DISCLOSURE OF INVENTION.
An aim of the present invention is to eliminate the aforesaid drawbacks by making available a pinching-prevention device for automatic doors, in particular for lifts and/or elevators, that is suitable for being employed, during the closure and/or opening phase, both in doors with centrally opening wings and with telescopically opening wings.
Another aim of the present invention is to propose a pinching-prevention device whose shape and dimensions are such as to be suitable for protecting both the gaps between wing and jamb and those between two or more wings. A further aim of the present invention is to obtain a pinching-prevention device that is suitable for being installed on transparent wings, without compromising their appearance.
Another aim of the present invention is to provide a pinching-prevention device that is extremely sensitive and allows to invert the motion of the wings in the presence of obstacles, both during the opening phase and during the closing phase of the doors.
An additional aim of the present invention is to obtain this in simple and economical fashion.
Said aims are fully achieved by the pinching-prevention device for automatic doors of the present invention, which is characterised by the content of the claims set out below and in particular in that it comprises at least a capacitive sensor fastened to wings or positioned in correspondence with an exterior frame or jamb, to prevent the pinching of things or persons during the opening and/or closing of the doors.
BRIEF DESCRIPTION OF DRAWINGS. This and other characteristics shall become more readily apparent from the following description of a preferred embodiment illustrated, purely by way of non limiting example, in the accompanying drawing tables, in which: Figure 1 shows an axonometric view of a wing made of transparent material and provided with a device according to the invention; - Figure 2 shows an enlarged view of the device shown in Figure 1;
Figure 3 shows an axonometric view of a wing made of metallic material and provided with a device according to the invention;
Figure 4 shows an enlarged view of the wing shown in Figure 3 in which a device according to the invention is noted. BEST MODE FOR CARRYING OUT THE INVENTION. With reference to the figures, the pmching-prevention device according to the invention is globally indicated with the number 1 and originally comprises a capacitive sensor 2 fastened to a shoulder 3 of a wing 4, preferably made of transparent material (Figures 1 and 2) or of a metallic material (Figures 3 and 4). In an alternative embodiment (not shown herein), in particular for wings sliding inside a compartment to the rear of an external frame or jamb, the possibility is provided of positioning the sensor 2 on said frame or jamb in correspondence with a gap present between it and the wing itself. The device 1, installed on a wing as shown in the figures, allows to prevent pinching the users, both during the closure phase of the doors, if the shoulder 3 defines an abutment surface against an external frame or against a corresponding abutment surface belonging to another wing for doors with central opening, and during the opening phase, if the shoulder 3 is superposed to another wing, for sliding doors with telescopic opening. In particular, during the opening phase the device 1 prevents the accidental pinching of user's fingers in the gap present between a wing and a jamb or between two sliding wings with telescopic opening.
The capacitive sensor 2 is a substantially plate-like or wire-like element connected by means of cables 5 to a battery or to the electrical mains and preferably positioned along an entire development in height of the wing whereon it is installed.
Said plate-like or wire-like element is preferably coated with a coating body made, for instance, of metal, wood, ceramic, plastic or glass. The operation of the device 1 is based on the fact that the sensor 2 is able to detect changes in the electric field through the coating body, caused by contact with obstacles, such as a user's body or fingers. The device 1 can be associated to electronic means for controlling and commanding the opening and closing of the doors, typically a known operating panel. In this way, the sensor 2, generating an appropriate electrical signal, allows the operating panel automatically to invert the motion of the doors, making them reopen or re-close depending on the area where the obstacle is located. In the embodiment illustrated in Figures 3 and 4, the capacitive sensor 3 is housed inside a groove 6 and is not directly exposed to contact with any obstacle. In this embodiment, the walls of the groove 6 itself define the coating body through which the sensor 2 detects the variation of the electrical field, to signal the presence of an obstacle, both during the opening phase and during the closing phase of the wings. The invention achieves important advantages. First of all, such a device prevents accidental pinching of the users, both during the opening phase and during the closing phase of the doors and applies indifferently to doors with central opening and to sliding doors with telescopic opening. In particular, such a device has such dimensions as to be able to protect the gaps between wing and jamb and/or between two or more wings, in order to prevent pinching the fingers of users, and especially of children.
In the second place, such a device can be installed on clear wings, without compromising their appearance. Another advantage is represented by the fact that the capacitive sensor 2 is extremely sensitive and can be associated to an operating panel to allow the inversion of the motion of the wings in the presence of obstacles, both during the opening phase and during the closing phase of the wings. Advantageously, such a device is simple and economical to install.

Claims

1. Pmching-prevention device ( 1 ) for automatic doors, in particular for lifts and/or elevators, characterised in that it comprises at least a capacitive sensor (2) fastened to wings (4) or positioned in correspondence with an external frame or jamb, to prevent the pinching of things or persons during the opening and/or closing phase of the doors.
2. Device as claimed in claim 1 , characterised in that the capacitive sensor (2) is fastened to at least a sliding wing and positioned in correspondence with an area of superposition between two wings with telescopic opening and/or in correspondence with an external frame or jamb, to prevent the pinching of things or persons during the opening phase.
3. Device as claimed in claim 1 , characterised in that the capacitive sensor (2) is fastened to at least a wing (3) and positioned in correspondence with its abutment surface against an external frame or jamb or against a corresponding abutment surface belonging to another wing in case of wings with central opening, to prevent the pinching of things or persons during the closing phase.
4. Device as claimed in claim 1 , characterised in that the capacitive sensor (2) comprises a substantially plate-like or wire-like element electrically powered by a battery or by electrical mains.
5. Device as claimed in claim 4, characterised in that it comprises a body for coating said plate-like element.
6. Device as claimed in claim 1, characterised in that it comprises electronic means for controlling and commanding the opening and closing of the doors operatively associated to the capacitive sensor (2).
7. Device as claimed in claim 1 , characterised in that at least a wing (3) is made of transparent material.
8. Lift and/or elevator, characterised in that it comprises a pinching- prevention device (1) as claimed in any of the previous claims.
PCT/IT2002/000496 2002-02-15 2002-07-26 Pinching-prevention device for automatic doors, in particular for lifts and/or elevators Ceased WO2003069104A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02760556A EP1474582B1 (en) 2002-02-15 2002-07-26 Pinching-prevention device for automatic doors, in particular for lifts and/or elevators
AT02760556T ATE294314T1 (en) 2002-02-15 2002-07-26 ANTI-PINCHING DEVICE FOR AUTOMATIC DOORS, ESPECIALLY OF ELEVATORS
AU2002326147A AU2002326147A1 (en) 2002-02-15 2002-07-26 Pinching-prevention device for automatic doors, in particular for lifts and/or elevators
DE60203946T DE60203946T2 (en) 2002-02-15 2002-07-26 Ankle protection device for automatic doors, in particular for lifts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPR02U000003 2002-02-15
IT2002PR000003U ITPR20020003U1 (en) 2002-02-15 2002-02-15 ANTI-CRUSHING DEVICE FOR AUTOMATIC DOORS, IN PARTICULAR FOR LIFTS AND / OR ELEVATORS.

Publications (1)

Publication Number Publication Date
WO2003069104A1 true WO2003069104A1 (en) 2003-08-21

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ID=27677472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2002/000496 Ceased WO2003069104A1 (en) 2002-02-15 2002-07-26 Pinching-prevention device for automatic doors, in particular for lifts and/or elevators

Country Status (7)

Country Link
EP (1) EP1474582B1 (en)
AT (1) ATE294314T1 (en)
AU (1) AU2002326147A1 (en)
DE (1) DE60203946T2 (en)
ES (1) ES2242056T3 (en)
IT (1) ITPR20020003U1 (en)
WO (1) WO2003069104A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006031185A1 (en) 2004-09-17 2006-03-23 Electrolux Home Products Corporation N.V. Capacitive sensor system
US8436628B2 (en) 2006-03-17 2013-05-07 Electrolux Home Products Corporation N.V. Door position sensor
US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
US9234979B2 (en) 2009-12-08 2016-01-12 Magna Closures Inc. Wide activation angle pinch sensor section
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
CN112888648A (en) * 2018-10-23 2021-06-01 三菱电机株式会社 Door holding detection device and door device of elevator
US11242226B2 (en) 2018-05-14 2022-02-08 Otis Elevator Company Elevator door safety control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101842985A (en) 2007-08-30 2010-09-22 微-埃普西龙测量技术有限两合公司 Capacitive automatic reversing device and method for operating automatic reversing device
EP3255010A1 (en) 2016-06-10 2017-12-13 Kone Corporation A safety system for sliding elevator doors, an elevator and a method

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GB1227198A (en) * 1968-10-31 1971-04-07
US4240528A (en) * 1977-05-04 1980-12-23 Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft Field sensor
US4753323A (en) * 1986-05-26 1988-06-28 Kone Elevator Gmbh Safety system for closing doors
US4976337A (en) * 1987-06-11 1990-12-11 Formula Systems Limited Proximity detection systems
US5142822A (en) * 1991-08-26 1992-09-01 Atlas Roll-Lite Door Corporation Safety arrangement for automatic door operator
EP0698714A1 (en) * 1994-08-26 1996-02-28 Witronic Elektronische Geräte Gesellschaft M.B.H. Door safety system
EP1044919A1 (en) * 1999-04-13 2000-10-18 L. Hopmann Maschinenfabrik GmbH Elevator door

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
GB1227198A (en) * 1968-10-31 1971-04-07
US4240528A (en) * 1977-05-04 1980-12-23 Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft Field sensor
US4753323A (en) * 1986-05-26 1988-06-28 Kone Elevator Gmbh Safety system for closing doors
US4976337A (en) * 1987-06-11 1990-12-11 Formula Systems Limited Proximity detection systems
US5142822A (en) * 1991-08-26 1992-09-01 Atlas Roll-Lite Door Corporation Safety arrangement for automatic door operator
EP0698714A1 (en) * 1994-08-26 1996-02-28 Witronic Elektronische Geräte Gesellschaft M.B.H. Door safety system
EP1044919A1 (en) * 1999-04-13 2000-10-18 L. Hopmann Maschinenfabrik GmbH Elevator door

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006031185A1 (en) 2004-09-17 2006-03-23 Electrolux Home Products Corporation N.V. Capacitive sensor system
RU2383710C2 (en) * 2004-09-17 2010-03-10 Электролюкс Хоум Продактс Корпорейшн Н.В. Capacitive sensor system
US8049518B2 (en) 2004-09-17 2011-11-01 Electrolux Home Products Corporation N.V. Capacitive sensor system
US8436628B2 (en) 2006-03-17 2013-05-07 Electrolux Home Products Corporation N.V. Door position sensor
US9417099B2 (en) 2009-12-08 2016-08-16 Magna Closures Inc. Wide activation angle pinch sensor section
US9234979B2 (en) 2009-12-08 2016-01-12 Magna Closures Inc. Wide activation angle pinch sensor section
US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
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
US11242226B2 (en) 2018-05-14 2022-02-08 Otis Elevator Company Elevator door safety control
CN112888648A (en) * 2018-10-23 2021-06-01 三菱电机株式会社 Door holding detection device and door device of elevator
US20210179390A1 (en) * 2018-10-23 2021-06-17 Mitsubishi Electric Corporation Door-pinch detection device and elevator door device
CN112888648B (en) * 2018-10-23 2023-03-17 三菱电机株式会社 Door clamping detection device and door device of elevator
US11745984B2 (en) * 2018-10-23 2023-09-05 Mitsubishi Electric Corporation Door-pinch detection device and elevator door device

Also Published As

Publication number Publication date
DE60203946D1 (en) 2005-06-02
ES2242056T3 (en) 2005-11-01
AU2002326147A1 (en) 2003-09-04
DE60203946T2 (en) 2006-02-23
ATE294314T1 (en) 2005-05-15
EP1474582B1 (en) 2005-04-27
EP1474582A1 (en) 2004-11-10
ITPR20020003U1 (en) 2003-08-18

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