WO2021146314A1 - Dispositif de sécurité de position de fin de course pour porte roulante - Google Patents

Dispositif de sécurité de position de fin de course pour porte roulante Download PDF

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Publication number
WO2021146314A1
WO2021146314A1 PCT/US2021/013278 US2021013278W WO2021146314A1 WO 2021146314 A1 WO2021146314 A1 WO 2021146314A1 US 2021013278 W US2021013278 W US 2021013278W WO 2021146314 A1 WO2021146314 A1 WO 2021146314A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling door
shaft
door
actuators
safety device
Prior art date
Application number
PCT/US2021/013278
Other languages
English (en)
Inventor
Sebastian Magro
Original Assignee
Alpine Overhead Doors, Inc.
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
Priority claimed from US16/741,073 external-priority patent/US11643849B2/en
Priority claimed from US16/800,761 external-priority patent/US11486195B2/en
Application filed by Alpine Overhead Doors, Inc. filed Critical Alpine Overhead Doors, Inc.
Priority to CA3164663A priority Critical patent/CA3164663A1/fr
Publication of WO2021146314A1 publication Critical patent/WO2021146314A1/fr

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
    • E06B9/68—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
    • 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
    • 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
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • 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
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
    • 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
    • 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
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/35—Position control, detection or monitoring related to specific positions
    • E05Y2400/354—End positions
    • 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
    • E05Y2900/106—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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/689—Control using end switches
    • 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
    • E06B2009/807—Brakes preventing fast screen movement

Definitions

  • the present invention generally relates to rolling doors and, more specifically, a power transfer device fora rolling door operator.
  • Roller shutter doors have been known for some time and are used in a variety of applications. They include such categories as: rolling grille; storm doors; fire and smoke doors; air-leakage doors, counter shutters; and, the like. What they have in common is a construction that allows them to be rolled up onto a drum or tube when in the open position; or, to be unreeled from the drum when the door is being lowered. Theses doors are typically used in commercial establishments to seal or close off large doorways, or bays, and can be operated electrically, manually, or both.
  • Shea there is disclosed a mechanism for controlling the opening and closing of a door such as a fire door.
  • the mechanism controls the speed of the door when it drops under the force of gravity; and, can be electrically, or manually, operated.
  • the problem that Shea was attempting to address was the need for a fire door mechanism that regulates the raising and lowering of the door while effectively controlling the door's movement without the need of springs or similar mechanical means.
  • the speed of the door's drop was under control of a centrifugal governor employing brake shoes.
  • Fan teaches a driving mechanism for roller shutter doors that can be adjusted from outside of the apparatus so as to accommodate doors of different heights.
  • the advantage of Fan is that the mechanism, if either moved from a door of one height to a door of a differing height, or if the door is not of the height for which the factory settings apply, does not have to be disassembled for adjustments.
  • the adjustable control means is disposed within the stationary housing of the apparatus, and extends from within the apparatus to a point outside where it can be manipulated or adjusted as required.
  • Fan addresses a legitimate need, it still leaves unanswered the need to allow the door to move freely into an open position while under control of a governor.
  • Balli an improved power transmission mechanism which works between the drive motor and the operator output shaft is disclosed.
  • the operator unit is adapted to reverse the positions of a manual operator drive and a release mechanism.
  • the advantage provided by Balli is the ability to interchange the operator unit components depending upon the door configuration or application.
  • the drive mechanism can be established as either a right side or a left side mount. Balli still leaves the question of door control after rebounding, or the issue of timer adjusted openings and closings to be addressed.
  • Varley teaches a mechanism that addresses the difficulty of operating a roll-up door manually in those cases where the drive motor is mounted in an assembly that is beyond the easy reach of the user.
  • the mechanism of Varley includes a manual brake release that is foot actuated by a person using an elongated crank handle to manually move the door from an open to closed position or vice versa.
  • a problem left unanswered by Varley is how an operator, under the stress of an emergency, can efficiently disengage the motor drive.
  • the limit switches are mounted inside the motor operator housing and require disassembly of the operator to make any changes or adjustments.
  • U.S. Patent No. 7,878,230 discloses a door release mechanism that it uses an external drop arm to control a governor shaft secured to the sun gear of a planetary gear system.
  • the release of the drop arm from engagement with a rotatable plate secured to the sun gear allows the shaft to freely rotate.
  • This requires an externally mounted drop arm and an externally mounted plate that can rotate at a relatively high speed, both the drop arm and plate being exposed to contaminants and foreign objects that can interfere with their operation.
  • a safety device for a rolling door includes; a limit position safety device for establishing upper and lower limit positions of a rolling door that can be raised when rolled onto a generally horizontal shaft when the shaft rotates in a first direction and lowered when the shaft rotates in an opposing direction.
  • the device comprises two electrical limit switches each actuatable to reflect when an associated limit position of the rolling door has been reached. Actuators are movable to selectively actuate one of the limit switches at associated upper or lower limits positions of the rolling door.
  • Drive gear means directly coupled to the horizontal shaft of the rolling door for moving said actuators in response to movements of the rolling door horizontal shaft, whereby said drive gear means always provides a direct physical connection or link between the rolling door shaft and said actuators to provide reliable indications of the position of the rolling door.
  • FIG. 1 is a side elevational view of one embodiment of the present invention illustrating a hand operated chain assembly to manually operate the operator to raise and lower a rolling door;
  • FIG. 2 is an exploded view of the operator shown in Fig. 1;
  • FIG. 3 is an exploded perspective view of the internal components of the operator shown in Figs. 1 and 2 as viewed from the housing side;
  • Fig. 4 is similar to Fig. 3 shown with the drive gears and the sun gear coupled to each other;
  • Fig. 5 is an exploded perspective view of the device as shown in Fig. 4, as viewed from the direction of the carrier and hub that receive and are connected to the shaft of the rolling door;
  • Fig. 6 is a side elevational view of an alternate embodiment of the operator utilizing twin DC motors to drive the operator;
  • Fig. 7 is an exploded view of the operator shown in Fig. 6;
  • Fig. 8 is an exploded view of a bridge gear box used in conjunction with the operator shown in Fig. 1;
  • FIG. 9 is a side elevational view of a still further embodiment of the invention driven by an external motor
  • Fig. 10 is an exploded view of the operator shown in Fig. 9;
  • Fig. 11 is an exploded view, in elevation of the operator shown in Fig. 4.
  • Fig. 12 is a top plan view of the limit position safety device shown in Figs. 1-3, 5- 7, and 9-11 ;
  • Fig. 13 is a side elevational view of the limit position safety device shown in Fig. 12; and
  • Fig. 14 is an end or side elevational view of the device shown in Figs. 12 and 13.
  • the operator 10 is mounted on a side drive bracket plate 12 secured to a vertical channel or wall angles 14.
  • a rolling door 16 shown in Fig. 2 is typically mounted on a barrel assembly 18 shown in Fig. 3 that defines an axis A and is operated by the controller 10.
  • the fire door operator 10 is used to control a rolling door that can be raised when rolled onto the barrel assembly 18 when the shaft 18a rotates in a first direction and lowered when the shaft rotates in an opposing direction, as is known in the art.
  • the shaft 18a can be any one of a number of different diameters depending on the size and the weight of the rolling door.
  • the operator 10 includes a generally cup-shaped housing 20 has interior space 20a as shown in Fig. 5, mounting flanges 20b and a central opening 20c as shown in Fig. 4
  • the housing forms a peripheral annular wall 20d, a flange 20e with an opening is formed along the periphery as shown, for example, in Fig. 4. While one axial end of the housing 20 is open the other end is substantially closed by a wall 20f formed with at least one lateral opening 20g from the axis A offset, two openings being shown in Fig. 4.
  • the axis A is coextensive with the shaft 18a when assembled and mounted on the shaft.
  • the operator is provided with a main outer gear in the form of an annular ring mounted within the housing 20 for rotation about the axis A and is folmed with exterior teeth 22a and radially inwardly spaced interior teeth 22b.
  • Planet gears 24 are meshed with the interior teeth 22b and a sun gear 26 is meshed with the planet gears 24 for rotation about the axis A.
  • a carrier 32 in the form of a circular plate or disk is fixedly attached to a hub 34 in any conventional manner and shares rotations with the carrier 32.
  • the carrier 32 is also secured to the planetary gears 24, as indicated.
  • the hub 34 can be secured to the shaft 18a in any suitable or conventional manner.
  • the hub 34 includes a mounting plate 34a attachable to the carrier 32 and an annular extension 34b formed at the radial end opposite to the mounting plate with external teeth 34c.
  • a keyway 34d is shown for securing the shaft 18a to the hub 34 for sharing rotations therewith.
  • a locking mechanism 36 is provided for normally locking the main outer or ring gear 22 in relation to the housing 20.
  • the locking device in the example shown, is a rocking arm 36 positioned in proximity to the exterior teeth 22a of the annular ring 22 and provided with locking teeth 36a configured to mesh with the outer or exterior teeth 22a of the main or ring gear 22. In a locking position, the teeth 36a engage the teeth 22a and prevent the ring gear 22 from rotating about the axis A.
  • the rocker arm 36a can be manually or electromechanically urged from its normal biased locking position to move the locking teeth 36a out of engagement with the exterior teeth 22a thereby releasing the outer or gear ring 22.
  • the rocker arm 36 can be controlled manually by a string or pull chain attached to a loop 36b shown in Fig. 4. However, the rocker arm 35 can also be moved from its normally biased position by any known actuating devices, such as solenoids, step motors or the like. When the main outer or ring gear 22 is released it can freely rotate within the housing 20 and is not exposed to contaminants or exterior objects that can potentially interfere with that movement.
  • a direct drive limit switch 38 shown, for example, in Fig. 5.
  • the direct drive limit switch assembly 38 is connected by means of a reduction gear set 40 that includes gears 40a-40c, the gear 40c being directly coupled to the outer or exterior teeth 34c of the hub 34.
  • Rotation of the hub 34 is directly indicative of the rotational speed of the barrel assembly or shaft 18a that, therefore, the speed at which the rolling door or curtain 16 is dropping.
  • the direct drive limit switch 38 is also indicative of the position of the rolling door 16. When the door reaches its upper position or its lower position the drive limit switch 38 generates electrical signals that can be used to stop any motor drive from further attempting to raise a door any higher or dropping it any lower.
  • the limit switch assembly is also discussed in U.S. Patent No. 8,069,896.
  • An important feature of the invention is provision of a slot or opening 20e (Fig. 4) in the housing 20 through which the gear 40a of the direct drive limit switch can extend so that at least a portion of this gear 40a projects below or outside of the housing 20. This allows the direct drive limit switch 38 to be mounted outside of the housing 20 while still maintaining precise information of the movements of the sun gear 26c and the position of the rolling door.
  • An opening 26h is provided in the wall 26d for providing access to the outer teeth 22a of the ring gear 22 when the rocker arm 36 is mounted on the housing 20.
  • an opening 26i is provided on the annular wall 20d to enable the gear train 40 to engage the direct drive limit switch assembly 38 which is likewise mounted exteriorly of the housing 20.
  • a governor 42 that includes a centrifugal mechanism 42a, a shaft 42b and a gear 42c that is always engaged with the outer teeth 22a of the ring gear 22.
  • the shaft 42b extends through an opening in the flange 20e formed on the housing 20.
  • Other braking mechanisms can be used, such as an electromagnetic clutch 60 coupled by means of a chain 62 to a sprocket 64 mounted on a bracket 66.
  • the sprocket 64 is coupled by means of a bearing 70 to a gear 72 that is always engaged with the outer teeth 22a of the ring gear.
  • a gear 72 that is always engaged with the outer teeth 22a of the ring gear.
  • the electromagnetic clutch 60 detects the speed and creates counter force that resists further increases in the speed of the ring gear.
  • Braking devices including viscous governors and other braking devices well known to those in the art can be used with different degrees of advantage.
  • Bridge gear box 50 includes a housing 50a having a cover 50b.
  • a drive shaft 50c is coupled to an idle spur gear 50d meshed with two spur gears 50e and 50f as shown.
  • the spur gears 50e and 50f are coupled to spur gear shafts 50g and 50h, respectively, mounted on bearings 50i and 50j.
  • the drive shaft 50c and gear sprocket 52 are also mounted on a drive shaft bearing 54.
  • rotation of the gear sprocket 52 and the drive shaft 50c transmits rotational torque by means of the spur gear 50d to the spur gears 50e and 50f thereby rotating spur gear shafts 50g and 50h.
  • These are coupled, in turn, to drive gears 30 that are coupled to and transmit rotational forces to the sun gear by way of the outer teeth 26c.
  • each of the gear boxes has a shaft that extends through the openings 26g of the housing and coupled to the drive gears 30 as with the gear shafts 50g, 50h.
  • Other devices can be used such as direct drive chain hoists, reduced drive chain hoists and compound reduction chain hoists.
  • an external motor 56 can be used to drive the chain 46.
  • the motor 56 is electrically coupled to the limit switch assembly 38 to prevent continued rotation of the motor 56 when the limit switches indicate that the door has reached a lower most or an upper most position and, the bridge gear box 50 can be used to transmit the drive power of the motor 56 to the drive gears 30 and, therefore, to the sun gear 26.
  • the motor 56 can be of a third party operator 74, so that the operator of the present invention can be used with third party operators in the aforementioned drive mechanism.
  • the switch 38 includes a metal housing 60.
  • the shape or nature of the housing 60 is not critical although, as shown, it is preferably open to expose the interior of the housing to make it readily accessible for making easy and rapid adjustments
  • the metal housing 60 includes a bottom wall 60a and spaced parallel side walls 60b and 60c as shown.
  • the side walls 60b and 60c rotatably support the gear 40a mounted on a gear or work shaft 62 rotatably mounted on the side walls.
  • the gear or work shaft 62, or at least that portion thereof between the side walls 60b, 60c is provided with an exterior thread and is in the nature of a travel bar or worm drive gear.
  • the gear shaft 62 can be rotatably mounted on the metal housing 60 in any conventional or suitable manner.
  • a bearing 66 may be used to minimize friction.
  • Limit nuts or followers 68, 70 are treadedly meshed with the travel bar 64 to convert the rotational movements of the gear 40a and shaft 62 into linear movements of the limit nuts 68, 70 along the axis AA of the travel bar or worm gear 64. Rotation of the travel bar in one direction results in the limit nuts or followers 68, 70 to linearly move in one direction while a reversal of rotational movement of the gear shaft 62 causes the limit nuts or followers to linearly move in the opposite direction.
  • a micro-switch 72 is mounted proximate to the travel bar 64 as shown and has a lever 74 configured and arranged to engage the nut or follower 68 when the nut 68 is moved to a position to deflect the lever 74 sufficiently to activate the micro-switch 72 and change its state from normally open to normally closed or vice versa.
  • a micro switch 76 is provided with a lever 78 configured and arranged to selectively contact the limit nut or follower 70.
  • the nuts or followers can be manually moved on the travel bar or worm gear 64 to adjust their positions to correspond to the upper and lower limits of the rolling door.
  • An adjuster guide plate 80 can be moved relative to the travel bar 64 to enable the nuts or followers 68, 70 to be manually adjusted. Once placed in their desired positions the guide plate 80 can be secured to the bottom wall 60a while engaging the limit nuts or followers to ensure that they do not move relative to the travel bar or worm gear 64 other than upon rotation of the gear or work shaft 62.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

L'invention concerne un dispositif de sécurité de position de fin de course permettant d'établir des positions de fin de course supérieure et inférieure d'une porte roulante qui peut être levée lorsqu'elle est enroulée sur un arbre généralement horizontal lorsque l'arbre tourne dans une première direction et abaissée lorsque l'arbre tourne dans une direction opposée. Le dispositif comprend deux commutateurs de fin de course électriques pouvant être actionnés chacun pour refléter lorsqu'une position de fin de course associée de la porte roulante a été atteinte. Des actionneurs sont mobiles pour actionner de manière sélective l'un des commutateurs de fin de course à des positions de fin de course supérieure ou inférieure associées de la porte roulante. Des engrenages d'entraînement sont directement accouplés à l'arbre pour déplacer les actionneurs en réponse à des mouvements de l'arbre horizontal de la porte roulante. En conséquence, les engrenages d'entraînement direct fournissent toujours un accouplement ou une liaison physique directe entre l'arbre de porte roulante et les actionneurs pour fournir des indications fiables de la position de la porte roulante.
PCT/US2021/013278 2020-01-13 2021-01-13 Dispositif de sécurité de position de fin de course pour porte roulante WO2021146314A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3164663A CA3164663A1 (fr) 2020-01-13 2021-01-13 Dispositif de securite de position de fin de course pour porte roulante

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16/741,073 2020-01-13
US16/741,073 US11643849B2 (en) 2020-01-13 2020-01-13 Planetary gearbox system
US16/800,761 2020-02-25
US16/800,761 US11486195B2 (en) 2020-01-13 2020-02-25 Limit position safety device for a rolling door

Publications (1)

Publication Number Publication Date
WO2021146314A1 true WO2021146314A1 (fr) 2021-07-22

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ID=76864241

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Application Number Title Priority Date Filing Date
PCT/US2021/013278 WO2021146314A1 (fr) 2020-01-13 2021-01-13 Dispositif de sécurité de position de fin de course pour porte roulante

Country Status (1)

Country Link
WO (1) WO2021146314A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191400074A (en) * 1914-01-01 1914-07-30 Arthur Lloyd Gibson Improvements in or relating to Means for Operating Fire Doors, Shutters and the like.
US2883182A (en) * 1955-03-25 1959-04-21 Liftron Corp Automatic door opener
EP0181260A2 (fr) * 1984-11-05 1986-05-14 Nergeco S.A. Dispositif de fixation et de protection de élément moteur des portes accordéon
EP0374271A1 (fr) * 1988-12-16 1990-06-27 Firma Kurt Berner Dispositif de commande d'une porte coulissant horizontalement sur des poulies le long d'un rail de guidage
US4977704A (en) * 1990-04-23 1990-12-18 Koenig Gordon K Machine shed sliding door operator
KR200238715Y1 (ko) * 2001-02-13 2001-09-28 박덕봉 농수산물 저장용 냉동창고의 도어 개폐 안전제어장치
CN2510896Y (zh) * 2001-10-10 2002-09-11 李宝珍 电动启闭设备的定位调整装置
EP3106598A1 (fr) * 2015-06-16 2016-12-21 Société Innovation du Bâtiment Système d'entraînement d'ouvrant
CN109898949A (zh) * 2019-04-22 2019-06-18 深圳市佳利美电子科技有限公司 一种平移开关结构及其开窗器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191400074A (en) * 1914-01-01 1914-07-30 Arthur Lloyd Gibson Improvements in or relating to Means for Operating Fire Doors, Shutters and the like.
US2883182A (en) * 1955-03-25 1959-04-21 Liftron Corp Automatic door opener
EP0181260A2 (fr) * 1984-11-05 1986-05-14 Nergeco S.A. Dispositif de fixation et de protection de élément moteur des portes accordéon
EP0374271A1 (fr) * 1988-12-16 1990-06-27 Firma Kurt Berner Dispositif de commande d'une porte coulissant horizontalement sur des poulies le long d'un rail de guidage
US4977704A (en) * 1990-04-23 1990-12-18 Koenig Gordon K Machine shed sliding door operator
KR200238715Y1 (ko) * 2001-02-13 2001-09-28 박덕봉 농수산물 저장용 냉동창고의 도어 개폐 안전제어장치
CN2510896Y (zh) * 2001-10-10 2002-09-11 李宝珍 电动启闭设备的定位调整装置
EP3106598A1 (fr) * 2015-06-16 2016-12-21 Société Innovation du Bâtiment Système d'entraînement d'ouvrant
CN109898949A (zh) * 2019-04-22 2019-06-18 深圳市佳利美电子科技有限公司 一种平移开关结构及其开窗器

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