CA1304099C - Safety device, particularly for roll-up doors - Google Patents

Safety device, particularly for roll-up doors

Info

Publication number
CA1304099C
CA1304099C CA000547448A CA547448A CA1304099C CA 1304099 C CA1304099 C CA 1304099C CA 000547448 A CA000547448 A CA 000547448A CA 547448 A CA547448 A CA 547448A CA 1304099 C CA1304099 C CA 1304099C
Authority
CA
Canada
Prior art keywords
door
leaf
roll
safety device
emitting means
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 - Fee Related
Application number
CA000547448A
Other languages
French (fr)
Inventor
Nils Hakan Ivar Larsson
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.)
Nomafa AB
Original Assignee
Nomafa AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20365869&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1304099(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nomafa AB filed Critical Nomafa AB
Application granted granted Critical
Publication of CA1304099C publication Critical patent/CA1304099C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • 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
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E05F2015/434—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with optical sensors
    • E05F2015/435—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with optical sensors by interruption of the beam
    • E05F2015/436—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with optical sensors by interruption of the beam the beam being parallel to the wing edge
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/47—Springs; Spring tensioners
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E05Y2600/13—Adjustable or movable by motors, magnets, springs, weights
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • E06B2009/885—Braking mechanism activated by the bottom bar

Abstract

ABSTRACT OF THE DISCLOSURE

A safety device, particularly intended for use in roll-up doors for the purpose of causing reversal of the closing movement of the door when an object is obstructing the path of movement of the door. The device comprises at least one signal emitting means which is arranged to emit a beam of light, a beam of sound or another kind of signalling beams and which is supported by the door-leaf some distance from the door-leaf closing edge. The signalling device emits a beam of light, a beam of sound or a signalling beam of another nature across the width of the door-leaf at such a distance from the lower closing edge of the door-leaf that any object that interrupts the beam emitted by the signalling means causes reversal or standstill of the closing movement of the door-leaf before the edge thereof hits the obstructing object. The signalling means is arranged to be displaced towards the lower closing edge of the door-leaf during the final closing movement of the latter.

Description

~ 30~099 A Safety Device, Particularly for Roll-Up Doors The subiect invention concerns a safety device, which is intended to be used particularly in roll-up doors for the purpose of causing reversal of the closing movement of the door when an object is obstructing its path of movement. The safety device is of the kind comprising at least one signalling means which is arranged to emit a beam of light, a beam of sound or another kind of signalling beam and which is supported by the door leaf some distance from the door leaf closing edge.
One example of prior-art safety devices for doors is formed with a sealing strip which is positioned at the lower edge of the door leaf. The sealing strip consists e.g. of a hollow strip of soft rubber, the ends of which are sealed to enclose a quantity of air in the interior of the strip. Should the door leaf hit an obstacle, while moving downwards into its fully closed position, the air inside the sealing strip is compressed, resulting in actuation of a diaphragm valve to reverse the closing movements of the door leaf. This construction does, however, suffer from the disadvantage that it is comparatively fragile and sensitive, since the slightest leakage makes the device inoperative.
Considering that doors of this kind are frequently damaged, for instance by trucks and other vehicles passing through the doorway, the use of highly sensitive sealing strips i5 not very advisable.
Another serious drawback inherent in this prior-art structure is that reversal of the door leaf movements is not initiated until the leaf hits the object which is obstructing its path of movement.

Og9 In another prior-art structure the problem is solved thereby that instead of enclosing an air cushion inside the lower sealing strip a photoelectric cell is used the beam of which is arranged to pass through the strip. Although this structure is leakage-proof, it still depends on deformation oP the strip for the initiation of the reversal of the door movements.
In accordance with a third prior-art structure which suffers from disadvantages identical with those inherent in the first two prior-art structures discussed in the aforegoing two copper rails are mounted on the strip which rails are kept apart by a spring of a non-conductive material.
Finally, it is also known to use photoelectric cells which are positioned closely above the floor level. Although this structure does not depend on contact between the door leaf and the obstructing 1~ object for its operation persons may easily climb over the beam of the photoelectric cell and the forks of Pork-lift trucks may pass over it, and so the device will fail to operate. This prior-art structure could be combined with any one of the s~ructures referred to in the aforegoing which become operative to reverse the closing movement of the door leaf upon contact with an obstructing object. However, combinations of this kind suffer from the disadvantage that also in such cases contact is required between the door leaf and the obstructing object to make the safety device operative, in addition to which installation thereof is comparatively expensive because of the necessity to double the sensing means.

~.3W~9 The purpose of the subject invention is to provide an efficient safety device which is intended for door leaves and similar structures and which is designed so as to be able to cause reversal of the closing movement of the door leaf without having to touch the object obstructing the path of the movement of the door leaf. In addition, the safey device in accordance with the invention is designed so as to positively exclude the possibility of anyone stepping across it by mistake,which results in failure to initiate operation of the device, and it is also designed to completely relieve the door leaf and effect positive stopping of the door leaf movements within five seconds, thus fulfilling the safety regulations laid down by the authorities.
For this purpose, the safety device in accordance with the invention is characterized therein that the signallig means emits a beam of light or a beam of sound or a slgnalling beam of another nature across the width of the door leaf at such a distance from the lower closing edge of the door leaf that any object that interrupts the beam em;tted by the signall;ng means causes reversal or standstill of the closing movement of the door leaf before the edge thereof hits the obstructing object and therein that the signall;ng means is arranged to be displaced towards the lower closing edge of the door leaf during the final closing movement of the latter.

J~

' ':' ' ;,' ~ 3~ 9~

A particularly advantageous embodiment of the invention will be described in the following with reference to the accompanying drawings, wherein Fig. 1 is a front view of a roll-up door equipped with a safety device in accordance with the invention, Fig. 2 is a lateral, partly broken view of the door which illustrates the device in accordance with the invention on an enlarged scale,supported by a door leaf, and Fig. 3 is a front view of the details in accordance with Fig. 2.
The roll-up door in accordance with the invention and shown in Fig. 1 essentially comprises a roll-up door leaf 1, two posts 2, a lower cross beam 3, an upper cross beam 4 onto which the door-leaf 1 is wound to open the door, a motor 5 to actuate the roll-up movements, and 1~ a safety device 6.
One half of this safety device 6 is shown in detail in Figs.
2 and 3. It essentially comprises a photoelectric cell 7, a displaceable cell support arm 9 which is slidably mounted in a tubular holder 8, a stop limit edge 10 designed to determine the lower position of the arm 9, and an abutment 11 which is designed to abutiiagainst the floor when the door leaf 1 is approaching and in its fully door-closing position. Figs. 2 and 3 illustrate the door leaf 1 in the position it occupies when it is so close to its door-closing position that the abutment 11 hits the floor.

13~4~99 The safety device 6 in accordance with the invention operates in the following manner. When the beam of light extending between the two photoelectric cells 7, one at either side of the door leaf, is interrupted during the closing movement of the door leaf 1 this movement is reversed immediately. The reversal occurs so rapidly that the lower edge of the door leaf 1 will not hit the object that obstructs the path of the beam of light.
In order to allow the photoelectric cells to be mounted at a sufficiently high level above the lower edge of the door leaf 1 without blocking the way when the door is closing, they are displaceable in the direction indicated by arrow A relative to the door leaf 1.
Displacement of the photoelectric cells is achieved by arranging the photoelectric cell support arm 9 in such a manner ~hat it slides freely in the tubular holder 8 which is formed integral with the door leaf 1.
A stopper means or limiting means 10 is attached to the upper end of the support arm 9 in order to retain the latter inside the tubular holder 8 and to ensure that both photoelectric cells 7 assume a ; position at the same level above the lower edge of the door leaf 1.
When the door leaf was progressed so far downwards that the photoelectric cells 7 approach the floor, the abutment 11 hits the floor whereby the arm 9 slides upwards relative to the door leaf.
Furthermore, the device is connected in a manner ensuring that the operation thereof ceases immediately beFore the door leaf reaches it fully closed position. This avoids interruption of the beam of light between the photoelectric cells 7 by means of the sealing strip 12 which is mounted at the lower transverse beam 3 on the lower edge oF
the door leaf 1.

~L3~1D99 Finally, it should be mentioned that the invention is not limited to the embodiment described in the aforegoing but that several embodiments are possible within the scope of the appended claims. For instance it is possible to fit the support arm 9 with a series of vertically positioned photoelectric cells to remove the possibility that an object which is pushed in between the beam o~ light and the lower edge of the door leaf is hit by the door.

Claims (8)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A safety device, particularly intended for use in a roll-up door, said roll-up door including a roll-up door-leaf extending horizontally between two upright posts defining a width for said roll-up door, said roll-up door further including an upper cross beam onto and off of which said door-leaf is wound to open and close said roll-up door respectively, and a lower cross beam connected to a bottom edge of said door-leaf, said bottom edge of said door-leaf being adjacent to a plane base surface when said roll-up door is in a closed position, said safety device comprising at least one signal emitting means which is arranged to emit a signalling beam across the width of the door-leaf at a distance below the lower cross beam on said bottom edge of the door-leaf so that any object, obstructing a movement of the roll-up door into said closed position, interrupts the signalling beam emitted by the signalling means and causes a stopping of the closing movement of the door-leaf before the bottom edge thereof hits said object, characterized therein that the signal emitting means is mounted on a support arm which is slideably mounted in a holder mounted on said lower cross beam, said support arm arranged to abut against said plane base surface upon closing of the door so that the signal emitting means are displaced relatively to and towards the door-leaf to a position at least in level with the bottom edge of said door leaf during the final closing movement thereof.
2. A safety device as claimed in claim 1, characterized therein that the signal emitting means are positioned in vertical alignment with the door-leaf.
3. A safety device as claimed in claim 1, characterized therein that the safety device is arranged to be disconnected when the door reaches a position at a predetermined level above the closed position.
4. A safety device as claimed in claim 1, characterized therein that said signal emitting means are a photoelectric cell.
5. An improved safety device, particularly intended for use in roll-up doors of the kind comprising a door-leaf and an overhead roll-up roller, said door-leaf arranged to be wound onto and off of said roll-up roller for opening and closing movements, respectively, said door-leaf extending horizontally between two upright posts defining a width for said roll-up door, said roll-up door further including a lower cross beam connected to a bottom edge of said door-leaf, said bottom edge of said door-leaf being adjacent to a plane base surface when said roll-up door is in a closed position, said safety device comprising at least one signal emitting means, said means arranged to emit a signalling beam across the width of said door-leaf at a distance below the lower cross beam on said bottom edge of said door-leaf so that any object obstructing a movement of said door into a closed position interrupts said signalling beam emitted by said signal emitting means and causes a stopping of said closing movement of said door-leaf before the bottom edge thereof hits said object, said improved safety device comprising:
a support arm on which said signal emitting means is mounted;
a holder mounted on said lower cross beam and slidingly receiving said support arm therein;

said support arm arranged to abut against said plane base surface upon closing of said door so that said signal emitting means are displaced relatively to and towards said door-leaf to a position at least level with the bottom edge of said door-leaf during the final closing movement thereof.
6. An improved safety device as claimed in claim 5, wherein said signal emitting means are positioned in vertical alignment with said door-leaf.
7. An improved safety device as claimed in claim 5 wherein said signal emitting means are a photoelectric cell.
8. An improved safety device as claimed in claim 5, wherein said safety device is arranged to be disconnected when said door reaches a position at a predetermined level above said closed position.
CA000547448A 1986-10-09 1987-09-21 Safety device, particularly for roll-up doors Expired - Fee Related CA1304099C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604283A SE459873B (en) 1986-10-09 1986-10-09 SAFETY DEVICE, IN PARTICULAR, FOR S ROLLPORTS
SE8604283-5 1986-10-09

Publications (1)

Publication Number Publication Date
CA1304099C true CA1304099C (en) 1992-06-23

Family

ID=20365869

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000547448A Expired - Fee Related CA1304099C (en) 1986-10-09 1987-09-21 Safety device, particularly for roll-up doors

Country Status (13)

Country Link
US (1) US4953608A (en)
EP (1) EP0325602B1 (en)
JP (1) JPH02500530A (en)
AT (1) ATE72286T1 (en)
AU (1) AU595396B2 (en)
BR (1) BR8707808A (en)
CA (1) CA1304099C (en)
DE (3) DE3776576D1 (en)
DK (1) DK155681C (en)
FI (1) FI86458C (en)
NO (1) NO166294C (en)
SE (1) SE459873B (en)
WO (1) WO1988002804A1 (en)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE463628B (en) * 1989-08-04 1990-12-17 Crawford Door Ab SECURITY SYSTEM AT ROOF GATES
ES2053307T3 (en) * 1990-01-26 1994-07-16 Somfy SAFETY DEVICE FOR MOTORIZED ROLLING SHUTTER.
AU7342791A (en) * 1990-02-14 1991-09-03 Frommelt Industries, Inc. Thermal door system
FR2660010B1 (en) * 1990-03-26 1994-05-06 Roland Doitrand SECURITY AND BACKUP DEVICE FOR PARTIALLY OPENING OVERHEAD DOORS OF GARAGES AND THE LIKE.
US5079417A (en) * 1991-02-22 1992-01-07 Link Controls, Inc. Failsafe sensing edge for automatic doors and gates
US5428923A (en) * 1991-02-25 1995-07-04 Gmi Holdings, Inc. Fail safe obstruction detector for door operators and door operator system incorporating such detector
US5191268A (en) * 1991-08-26 1993-03-02 Stanley Home Automation Continuously monitored supplemental obstruction detector for garage door operator
US5319217A (en) * 1992-11-25 1994-06-07 Eastman Kodak Company Door assembly for cassette autoloader
FR2703726B1 (en) * 1993-04-05 1995-06-02 Plumer Sa Motorized roller shutter comprising means delivering an electrical signal representative of the movement of the deck.
US5426293A (en) * 1993-04-29 1995-06-20 Miller Edge Sensing edge having a photoelectric switch positioned therein
US5596840A (en) * 1993-09-15 1997-01-28 Rmt Associates, Inc. Garage door opener with remote safety sensors
US5625980A (en) * 1993-09-15 1997-05-06 Rmt Associates Garage door opener with remote safety sensors
US5493812A (en) * 1993-09-15 1996-02-27 Rmt Associates ge door opener with remote safety sensors
US5450890A (en) * 1993-10-01 1995-09-19 Rite-Hite Corporation Roll-up strip curtain barrier apparatus
US5542463A (en) * 1993-10-01 1996-08-06 Rite-Hite Corporation Roll-up strip curtain barrier apparatus
SE502281C2 (en) * 1994-01-17 1995-09-25 Nomafa Ab Impact resistant gate
EP0671532A1 (en) * 1994-03-09 1995-09-13 W.u.H. Neukirchen GmbH & Co. KG High speed closure means
DE69504798T2 (en) * 1994-11-23 1999-03-11 New Tech Trigger with sliding window driven by an antimodel piston and device for monitoring the feed path of the same
US5712458A (en) * 1995-08-09 1998-01-27 The Peelle Company Door sensor beam
US5743317A (en) * 1996-07-24 1998-04-28 Rite-Hite Corporation Impact detection system for industrial doors
DE19636347C2 (en) * 1996-09-02 2001-09-20 Joerg Brech Device for controlling the closing process of motor-driven components which are essentially translationally adjustable
US5957181A (en) * 1997-03-20 1999-09-28 Ravco Innovations, Inc. Security bar assembly
US6035917A (en) * 1997-03-20 2000-03-14 Ravco Innovations, Inc. Foldable security bar assembly
US6394167B1 (en) 1997-03-20 2002-05-28 Moshe Cohen-Ravid Security bar assembly
IT237463Y1 (en) 1997-04-30 2000-09-13 Campisa Srl QUICK-ACTING DAMPER, IN PARTICULAR FOR OPENING OF INDUSTRIAL BUILDINGS
DE19739544A1 (en) 1997-09-09 1999-03-11 Efaflex Inzeniring D O O Ljubl Safety device for motor-driven systems
DE19739543A1 (en) 1997-09-09 1999-03-11 Efaflex Inzeniring D O O Ljubl Safety device for motorized gates
DE29716966U1 (en) * 1997-09-22 1997-11-13 Schieffer Tor Und Schutzsystem Roller door with a flexible door leaf
US6082046A (en) * 1998-02-25 2000-07-04 Simmons; Kevin A. Overhead door sensor mounting bracket
US6612357B1 (en) 1998-04-27 2003-09-02 Rite-Hite Holding Corporation Impact detection system for industrial doors
US6286257B1 (en) 1999-02-22 2001-09-11 Rytec Corporation Overhead door with dual safety-edge
US6427382B2 (en) 1999-02-22 2002-08-06 Rytec Corporation Dual safety-edge for an overhead door
US6598648B1 (en) * 1999-03-12 2003-07-29 Rite-Hite Holding Corporation Industrial door system responsive to an impact
US8825535B2 (en) 2000-08-24 2014-09-02 Martin Herman Weik, III Management and control system for a designated functional space having at least one portal
US6945303B2 (en) * 2000-08-24 2005-09-20 Weik Iii Martin Herman Intruder, theft and vandalism deterrent management system for controlling a parking area
US8831970B2 (en) 2000-08-24 2014-09-09 Martin Herman Weik, III Virtual attendant system and parking management system
US6484784B1 (en) 2000-08-24 2002-11-26 Weik, Iii Martin Herman Door controlling device
EA004453B1 (en) 2000-09-28 2004-04-29 Равко Инновейшнс Инк. Security barrier endless drive loop lock
US6651385B2 (en) * 2000-10-02 2003-11-25 Miller Edge, Inc. Retractable non-contact sensor system
US6920717B2 (en) * 2000-10-02 2005-07-26 Miller Edge, Inc. Non-contact sensor system and mounting barrier
US6433500B1 (en) * 2001-06-26 2002-08-13 Trw Inc. Vehicle window position sensor
US20050001573A1 (en) * 2002-07-01 2005-01-06 Bearge Miller Non-contact safety system
US8006805B2 (en) 2003-02-24 2011-08-30 The Peelle Company Ltd. Astragal construction
US7045725B2 (en) * 2003-03-25 2006-05-16 Abstract Overhead Door Co., Inc. Safety sensor for power operated overhead door
DE10342302A1 (en) * 2003-09-12 2005-04-14 Petra Rejc Rolling door with collision protection
US7178289B2 (en) * 2003-09-12 2007-02-20 B.E.A. Holdings, Inc. Self-correcting sensor for an entrance
US7157689B1 (en) 2003-10-28 2007-01-02 Fraba Inc. Optical edge sensing system with signal authentication
DE102004014182B4 (en) * 2004-03-23 2007-04-12 Hörmann KG Brockhagen gate
FR2877684B1 (en) * 2004-11-08 2008-08-15 Nergeco Sa FAST DOOR WITH FLEXIBLE CURTAIN
DE102006009713A1 (en) 2005-11-30 2007-06-06 Hörmann KG Antriebstechnik Holding device for a light barrier and use of the same
FR2917116B1 (en) * 2007-06-11 2011-09-16 Nergeco Sa FAST DOOR WITH FLEXIBLE SCREEN
FR2930276B1 (en) * 2008-04-22 2010-05-28 Somfy Sas METHOD FOR SECURELY OPERATING A DOMOTIC SYSTEM
IT1393987B1 (en) * 2008-07-31 2012-05-17 Pl S R L SAFETY DEVICE FOR DOORS WITH VERTICAL DOWNWARD.
IT1394124B1 (en) * 2008-10-22 2012-05-25 Biamonte AUTOMATIC DOOR WITH OPTICAL BARRIER SAFETY DEVICE
CA2750568C (en) * 2009-01-28 2017-11-28 Rytec Corporation Method and device for preventing contamination from a door which opens vertically
DE202009001346U1 (en) 2009-01-31 2009-06-10 Brech, Jörg Leading optical closing edge safety device for gates
DE102010000234B3 (en) 2010-01-27 2011-03-17 Alpha Deuren International Bv sectional
DE102011120668B4 (en) 2011-08-13 2014-10-16 Jörg Brech Leading optical closing edge safety device for gates
ES2378624B1 (en) * 2012-02-14 2012-10-30 Jcm Technologies, S.A. Automatic door system with safety sensor device and procedure for using said system
US9919575B2 (en) * 2013-08-30 2018-03-20 B/E Aerospace, Inc. Device for reversing chiller airflow in an aircraft galley
US10526838B2 (en) 2016-08-05 2020-01-07 Osi Industries, Llc Drainage assembly for an automatic door
DE102020110503A1 (en) * 2020-04-17 2021-10-21 EFAFLEX INŽENIRING d.o.o. Ljubljana Safety device for a lift gate and lift gate with such a safety device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755081A (en) * 1951-10-08 1956-07-17 Johnson Clarence Garage door operators
US2789636A (en) * 1954-08-30 1957-04-23 Julius J Lawick Door operating mechanism
US2909718A (en) * 1955-08-26 1959-10-20 Julius J Lawick Door operating apparatus
US3001038A (en) * 1958-04-14 1961-09-19 Glenn P Gessell Overhead closure safety halting system and actuator therefor
SE386944B (en) * 1972-08-18 1976-08-23 Nordiska Maskinfilt Ab RULLJALUSIPORT
US3903996A (en) * 1973-12-18 1975-09-09 Westinghouse Electric Corp Closure system
US4029176A (en) * 1975-10-06 1977-06-14 Mills Gerald W Doorway safety device
US4102382A (en) * 1977-05-05 1978-07-25 Vesbach Edwin G Overhead door operator
US4274226A (en) * 1979-08-06 1981-06-23 Park Mobile, Inc. Detection of object in path of moving gate
CH653975A5 (en) * 1981-12-03 1986-01-31 Inventio Ag LIGHT BARRIER ON AUTOMATICALLY OPERATED ELEVATOR DOORS.
JPS6138087A (en) * 1984-07-31 1986-02-24 鈴木シヤツタ−工業株式会社 Safety apparatus of electromotive shutter
US4621452A (en) * 1985-01-18 1986-11-11 Deeg Wyman L Powered sliding door safety system

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FI891664A (en) 1989-04-07
ATE72286T1 (en) 1992-02-15
DK255488D0 (en) 1988-05-10
FI891664A0 (en) 1989-04-07
SE459873B (en) 1989-08-14
NO882436L (en) 1988-06-02
JPH02500530A (en) 1990-02-22
DE3776576D1 (en) 1992-03-12
NO166294C (en) 1991-07-03
EP0325602B1 (en) 1992-01-29
EP0325602A1 (en) 1989-08-02
NO166294B (en) 1991-03-18
SE8604283D0 (en) 1986-10-09
WO1988002804A1 (en) 1988-04-21
FI86458C (en) 1992-08-25
AU8030087A (en) 1988-05-06
NO882436D0 (en) 1988-06-02
DE325602T1 (en) 1990-02-08
DK255488A (en) 1988-06-06
DK155681C (en) 1989-09-25
US4953608A (en) 1990-09-04
SE8604283L (en) 1988-04-10
DE8790065U1 (en) 1989-05-24
DK155681B (en) 1989-05-01
BR8707808A (en) 1989-08-15
FI86458B (en) 1992-05-15
AU595396B2 (en) 1990-03-29

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