WO2022050932A1 - Dispositif de sécurité de porte de cabine d'ascenseur - Google Patents

Dispositif de sécurité de porte de cabine d'ascenseur Download PDF

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Publication number
WO2022050932A1
WO2022050932A1 PCT/US2020/048900 US2020048900W WO2022050932A1 WO 2022050932 A1 WO2022050932 A1 WO 2022050932A1 US 2020048900 W US2020048900 W US 2020048900W WO 2022050932 A1 WO2022050932 A1 WO 2022050932A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
car door
safety device
door safety
flag
Prior art date
Application number
PCT/US2020/048900
Other languages
English (en)
Inventor
Ricardo MACAREÑO
Nelson Alonso
Original Assignee
Macareno Ricardo
Nelson Alonso
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 Macareno Ricardo, Nelson Alonso filed Critical Macareno Ricardo
Priority to PCT/US2020/048900 priority Critical patent/WO2022050932A1/fr
Publication of WO2022050932A1 publication Critical patent/WO2022050932A1/fr

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
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • 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
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position

Definitions

  • the present invention relates to an elevator car door safety device and more particularly to a door safety device comprising a mounting assembly, a flag engagement assembly, and a locking assembly.
  • the present invention only uses one flag in the the unlocking zone and remains locked without the use of flags if the car doors are opened in a locking zone. This reduces the costs associated with equipment, labor and maintenance.
  • Figure 1 represents an isometric view of an embodiment of car door restrictor 10 wherein flag engagement member 104 can be seen perpendicular flag F.
  • Hook assembly 60 can be seen resting on reset portion 84 while elevator is traveling or at rest in the hoistway without the doors attempted to be open.
  • Figure 2 shows an isometric view of an alternate embodiment of car door safety device 10 wherein sill distance adjustment members 65; 65a have been added to allow users to configure car door safety device 10 to sills of different dimensions.
  • This alternate embodiment also includes top and bottom stopper pins 24 and 26, respectively. Top stopper pin 24 maintains hook assembly 60 at a proper height to enable the reset feature of the present invention.
  • Bottom stopper pin 26 prevents hook assembly 60 from dropping too great a distance that would cause hook 62 to drag across the sill.
  • This alternate embodiment also shows shaft 28 cooperating with bearing sleeve 42 to reduce friction created by lever arm 46. Pad 66 can be seen to reduce the coefficient of friction between hook assembly 60 and locking assembly 80.
  • Figure 3 is an isometric view of another alternate embodiment wherein electric switch assembly 120 is used to disconnect an elevator’s driving means when flag engagement arm 102 falls forward as the door begins to open.
  • Figure 3A is an isometric view of an alternate embodiment wherein switch arm 128 includes a plurality of female switch throughholes 228 to adjust the position of female switch member 122.
  • Flag engagement arm 102 includes male switch throughholes 202 used to adjust the position of male switch member 124 to cooperate with female switch member 122.
  • Figure 4 is an isometric view of another alternate embodiment having a different type of switch. Also shown is an alternate embodiment when sill adjustment members 65; 65a are used to cooperate with shaft 28, allowing hook assembly to be positioned at predetermined distances to cooperate with locking assembly 80.
  • Figure 5 represents an isometric view of another alternate embodiment for hook assembly 60 having a smaller slope at hook distal end 64 and still being able to cooperate with locking assembly 80, thereby reducing the distance hook assembly 60 has to travel before being locked against locking assembly 80 reducing distance elevator doors are allowed to open before being locked.
  • Figure 6 shows an isometric view of another alternate embodiment for elevator car door safety device 10 wherein bottom stopper pin 26 has been removed and roller 200 is used to prevent hook 66 from dragging across the sill.
  • Figure 7 illustrates an isometric view of an alternate embodiment showing fastening means 23 used to mount outer mounting plate 22 to inner mounting plate 122.
  • Side mounting plate 122a can be partially seen perpendicularly mounted to inner mounting plate 122.
  • Multi-speed doors DI and D2 can be seen in the open position.
  • Figure 7A shows an isometric exploded view of the alternate embodiment in figure 7 wherein multispeed doors DI and D2 are in the closed position.
  • Flag engagement arm 102 has not yet engaged flag F.
  • Figure 7B represents an isometric exploded view of inner mounting plate 122 and side mounting plate 122a.
  • Side mounting plate includes slots 124; 124a that permit a user to selectively adjust the mounting of inner mounting plate 122 and side mounting plate 122a depending on the dimensions of the elevator car doors.
  • Fastening members 126; 126a are used to to secure both mounting plates together.
  • Figure 7C shows a top view of the alternate embodiment in figures 7 - 7B wherein doors DI and D2 are in the closed position and the configuration of inner mounting plate 122 and side mounting plate 122a is shown creating a predetermined cavity 121 to receive door D2.
  • Figure 7D is a front view of side mounting plate 122a wherein elevator car doors are in the closed position and elevator door D2 can be seen retracted to be substantially parallel to elevator door DI.
  • Cavity 121 (not shown) is of a predetermined dimension based on the mounting location along slots 124; 124a that cooperates with the width of elevator door D2.
  • Figure 8 is an enlarged isometric view of a cross-section of a previously described alternate embodiment showing sill distance adjustment members 65 and 65a fastened to lever arm assembly 40 using bolts.
  • Figure 9 is isometric view of lever arm assembly 40 showing throughhole 41 wherein sleeve bearing 42 is inserted, which houses shaft 28.
  • Figure 10 represents an isometric view of the present invention wherein the elevator car is in the unlocking zone and flag engagement member 104 has engaged flag F and hook assembly 60 has cleared locking assembly 80, thereby permitting the elevator car doors to fully open.
  • Figure 11 represents an isometric view of the present invention wherein flag engagement member 104 has not engaged flag F and hook assembly 60 has been lodged into locking assembly 80, thereby keeping the elevator car door locked.
  • Figure 12 is a representation of the present invention mounted to the elevator car door and in the reset position as the elevator travels through the hoistway.
  • Figure 12A is a representation of the present invention mounted to the elevator car door as the elevator doors are opened in the unlocking zone.
  • Flag engagement assembly 100 can be seen coming into contact with flag F, thereby keeping hook assembly 60 raised at a height necessary to clear locking assembly 80, thereby allowing the elevator car door to open.
  • Figure 12B is a representation of the present invention mounted to the elevator car door as the elevator doors are opened in the locking zone.
  • Flag engagement assembly 100 does not contact a flag F therefore hook assembly 60 is permitted to be lodged into locking assembly 80.
  • Figure 13 shows an enlarged isometric view of the present invention in the unlocked position and switch assembly 120 in the engaged position thereby activating the elevator’s drive train.
  • Figure 13A shows an enlarged isometric view of the present invention in the locked position and switch assembly 120 disengaged thereby deactivating the elevator’s drive train.
  • Figure 14 shows a partial isometric view of the present invention mounted onto an elevator car door wherein manual release assembly 300 is shown.
  • Figure 15A illustrates an isometric view of the present invention in the locked position with flag engagement assembly 100 inclined without coming into contact with a flag F.
  • Figure 15B is an isometric view of the present invention wherein chain member 310 of manual release assembly 300 is pulled upwards thereby urging flag engagement assembly 100 to remain in the substantially vertical position preventing hook assembly 60 from entering locking assembly 80.
  • This view shows a user such as an emergency personnel manually keeping the present invention in the unlocked position with or without the presence of flag F.
  • Figure 16 shows a front elevational view of the present invention wherein flag engagement assembly 100 is seen rotating towards flag F that will stop the rotation and not allow hook assembly 60 to be locked. However, switch assembly 120 is disconnected so that the elevator does not operate as the elevator doors are permitted to open.
  • Figure 17A represents a front elevational view of the present invention showing its location with respect to the doorjamb and flag F.
  • Figure 17B shows a front elevational view of the car sill adjacent to flag F that is mounted on a hoistway door.
  • Figure 17C is an isometric view of the operating environment of a hoistway showing where flag F can be mounted along a hoistway door that cooperates with flag engagement assembly 100 (not shown).
  • Figure 18 shows an exploded view of the present invention showing its components.
  • Mounting assembly 20 includes mounting plate 22 that is mounted to the car door of an elevator. As shown in figure 1, mounting assembly 20 also includes shaft 28 that protrudes through lever arm assembly 40 allowing lever arm 46 to rotate. As shown in figure 2, mounting assembly also includes top stopper pin 24 that maintains hook assembly 60 from rotating too far back. Locking assembly 80 allows hook assembly to properly reset itself on reset portion 84.
  • mounting assembly 20 also includes bottom stopper pin 26 mounted to mounting plate 22 at a height that prevents hook assembly 60 from rotating freely and becoming a nuisance if the door needs to be removed or opened for emergencies or maintenance.
  • bottom stopper pin 26 can be used to prevent hook assembly 60 from dragging across the sill after clearing locking assembly 80.
  • roller 200 can be used instead of bottom stopper pin 26 to prevent hook assembly 60 from dragging across the sill.
  • shaft 28 can be passed through sleeve bearing 42 to reduce friction, and thus wear and tear, as lever arm 46 rotates. Shaft 28 is inserted through throughholes 41 of lever 46, shown in figure 9.
  • Sleeve bearing 42 encases shaft 28 within throughholes 41. Sleeve bearing 42 reduces the friction between shaft 28 and lever 46 as lever arm assembly 40 rotates.
  • elevator car doors include bumpers or astragals to prevent noise created by the closing door against the strike jamb, if a single-slide or multi-speed door. These bumpers or astragals are also used to limit the noise in center opening doors. In the event that the bumpers or astragals become defective, the elevator car doors close more than they usually would.
  • Top stopper pin 24 accounts for this breakdown possibility and is mounted to mounting plate 20 at a predetermined position so that even if car doors close more than usual, the reset function of hook assembly 60 is unaffected. Top stopper pin 24 is maintained slightly separated from flag engagement arm 102 in the traveling or reset position to account for the possibility of this extra range of motion (due to bumper or astragal failure).
  • lever arm assembly 40 includes lever 46 that rotates about shaft 28.
  • the positioning of shaft 28 and the distance of lever arm 46 have a cooperative relationship so that hook distal end 64 rests on reset portion 84 of locking assembly 80 when car door safety device 10 is in the reset position.
  • Hook assembly 60 includes hook 62 having hook distal end 64 that rests on reset portion 84 when the car door is closed, as previously described.
  • Hook assembly 60 further includes sill distance adjustment members 65; 65a that are adjusted to outwardly extend hook 62 to accommodate the distance between lever arm 46 and the positioning of locking assembly 80 on the elevator sill.
  • pad 66 can be mounted to hook distal end 64 to reduce the coefficient of friction between hook 62 and reset portion 84.
  • locking assembly 80 includes locking cavity 82 that receives hook 62 as it falls forward into the locking position.
  • Locking assembly 80 also includes reset portion 84 upon which hook 62 rests.
  • Reset portion 84 has a sloping gradient that cooperates with the angle of hook distal end 64 to allow hook 62 to slide down when locking and slide up when resetting.
  • the distance between where hook rests on reset portion 84 and locking cavity 82 defines the amount the elevator car door is permitted to open before being restricted.
  • locking assembly 80 also includes locking portion 86 that is kept spaced apart from reset portion 84 by locking cavity 82.
  • Locking cavity 82 is predetermined to be a depth between reset portion 84 and locking portion 86 sufficient to allow enough of hook 62 to come in abutment with locking portion 86 that the opening movement of the car elevator door is restricted.
  • flag engagement assembly 100 includes flag engagement arm 102 that is rigidly and perpendicularly mounted to lever arm 46.
  • Flag engagement assembly 100 also includes flag engagement member 104 that comes into an abutting relationship with a flag F.
  • hook 62 begins to slide down reset portion 84.
  • Flag engagement arm 102 is positioned at a predetermined location on lever arm 46 so that when flag engagement member 104 engages a flag F, lever arm 46 is prevented from rotating further, thereby preventing hook 62 from being lodged into locking cavity 82. The elevator door is then allowed to be opened as hook assembly 60 clears locking assembly 80.
  • lever arm 46 is stopped by bottom stopper pin 26 preventing hook 62 from being dragged across the sill after clearing locking assembly 80. If no flag F is present, flag engagement member 104 continues to fall forward, lever arm 46 continues to rotate urging hook 62 to become journaled between reset portion 84 and locking portion 86 within locking cavity 82, thereby preventing the elevator door from opening any further.
  • Locking assembly 80 is mounted to the elevator sill using anchoring plate 88, having fastening means 89.
  • Fastening means 89 can include bolts, screws, inserts, welding or other similar methods that can achieve the mounting purpose.
  • electric switch assembly 120 can be used to deactivate the elevator’s driving means when the car door is opened.
  • Electric switch assembly 120 includes female switch portion 122 rigidly mounted to switch arm 128 as shown in figure 3.
  • Electric switch assembly 120 also includes male switch portion 124 that is rigidly mounted at a cooperative height along flag engagement arm 102.
  • Electric switch assembly 120 also includes circuit closing pins 126; 126a extending from male switch portion 124 that close or open the circuit that controls the elevator’s driving means. As the elevator car doors are opening and flag engagement arm 102 rotates, male switch portion 124 mounted to flag engagement arm 102 begins to separate from female switch portion 122. This causes circuit closing pins 126; 126a to begin disconnecting from female switch portion 124.
  • the present invention can include switch lever assembly 140 mounted to mounting assembly 20.
  • switch assembly 120 is securely affixed to the present invention so that it does not inadvertently engage or disengage based on vibrations associated with the elevator traveling through the hoistway.
  • Switch lever assembly 140 includes switch lever member 142, rotating fastening member 144, sloping member 146 mounted thereon at a predetermined location, and switch assembly 120 mounted at its distal end. Sloping member 146 includes a thicker portion 146a and a narrower portion 146b.
  • lever arm assembly 40 includes delay adjustment slot 242, delay adjustment members 244a; 244b, and lever extension 246.
  • stopper pin 26 comes in abutting engagement with lever extension 246 to prevent lever arm assembly 40 from over rotation that can cause hook member 62 to slide over and out of locking assembly 80.
  • Lever arm assembly 40 can be mounted to mounting assembly 20 using a ball bearing 149 within a bearing housing with a shaft going through the ball bearing 149 and secured using a locknut.
  • Delay guiding member 248 is mounted to lever arm assembly 40 and is longitudinally disposed therefrom to a length past the bottom of sloping member 146.
  • Delay guiding member 248 includes delay guiding pin 250 extending perpendicularly from its bottom distal end and positioned underneath and against the bottom of sloping member 146. In the present invention’s unlocked position, delay guiding pin 250 is positioned underneath thicker portion 146a.
  • lever arm assembly 40 As the elevator door is opened, lever arm assembly 40 is rotated towards locking assembly 80 and as it rotates, delay guiding member 248 and its associated delay guiding pin 250 are urged along thicker portion 146a towards narrower portion 146b.
  • delay guiding pin 250 slides into narrower portion 146b, switch lever 142 is able to drop thereby disengaging male switch member 124 from female switch member 122 and deactivate the elevator’s drive train.
  • the driving means are deactivated for safety.
  • the amount that the door is allowed to open before switch assembly 120 is deactivated is a function of the distance that delay guiding member 250 has to travel along thicker portion 146a before being underneath narrower portion 146b.
  • an additional adjustment member 65B is used with hook 62 to make it more secure and cancel torqueing that hook 62 would receive.
  • delay adjustment members 244a; 244b can be loosened to allow a user to change the angle of delay guiding member 248. If delay guiding member 248 is tilted towards narrower portion 146b then the delay is reduced thereby reducing the amount the elevator door is allowed to open before the dive train is disconnected. Inversely, if delay guiding member 248 is tilted away from narrower portion 146b then the elevator car doors can be opened wider before the elevator’s drive train is deactivated. This function of delaying the deactivation of the drive train as the elevator car door opens is done irrespective of the presence of a flag F.
  • the elevator car door safety device has several implementations of industrial applicability.
  • the safety may be installed in buildings and areas which utilizes an elevator car, such as malls, small businesses, and hospitals.
  • the door safety device includes flags along a hoistway. Additionally, the device includes a mounting plate with a locking assembly that is mounted to the sill of an elevator car door. This configuration allows the device to be implemented into existing car doors thereby having the ability of increasing the safety viability of existing car doors.
  • the device further includes a flag engagement arm being perpendicular to the plate which engages a flag on the hoistway then the hook is prevented from being lodged into the locking assembly and the car door is permitted to open.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

L'invention divulgue un dispositif de sécurité de porte de cabine d'ascenseur qui utilise des indicateurs le long d'une cage d'ascenseur. Le dispositif de sécurité de porte de cabine d'ascenseur est monté à l'extérieur d'une porte de cabine d'ascenseur à l'aide d'une plaque de montage et comprend un ensemble de verrouillage monté sur le seuil de la porte de cabine d'ascenseur. Le dispositif de verrouillage de porte de cabine comprend un levier muni d'un crochet à son extrémité distale. Le dispositif de sécurité comprend également un bras de prise d'indicateur monté perpendiculairement au levier. Si le bras de prise d'indicateur vient en prise avec un indicateur de la cage d'ascenseur, le crochet ne peut alors pas se loger dans l'ensemble de verrouillage et la porte de cabine est autorisée à s'ouvrir. Inversement, si aucun indicateur n'est en prise, le levier continue à pivoter, poussant le crochet à se loger à l'intérieur de l'ensemble de verrouillage, ce qui permet d'empêcher l'ouverture de la porte de cabine d'ascenseur. Un ensemble commutateur électrique peut être utilisé pour interrompre le déplacement de l'ascenseur.
PCT/US2020/048900 2020-09-01 2020-09-01 Dispositif de sécurité de porte de cabine d'ascenseur WO2022050932A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2020/048900 WO2022050932A1 (fr) 2020-09-01 2020-09-01 Dispositif de sécurité de porte de cabine d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2020/048900 WO2022050932A1 (fr) 2020-09-01 2020-09-01 Dispositif de sécurité de porte de cabine d'ascenseur

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WO2022050932A1 true WO2022050932A1 (fr) 2022-03-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1464871A (en) * 1920-11-23 1923-08-14 Randall Control And Hydrometri Elevator-door-lock-control mechanism
US20020163206A1 (en) * 2001-05-04 2002-11-07 Bass Patrick M. Swinging elevator hatchway door interlock
WO2006097997A1 (fr) * 2005-03-15 2006-09-21 Mitsubishi Electric Corporation Dispositif de synchronisation pour porte de cabine d’ascenseur
WO2016176033A1 (fr) * 2015-04-10 2016-11-03 Macareno Ricardo Verrouillage mutuel de porte de cabine d'ascenseur
US20180265332A1 (en) * 2015-02-13 2018-09-20 Otis Elevator Company Elevator synchronous door knife

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1464871A (en) * 1920-11-23 1923-08-14 Randall Control And Hydrometri Elevator-door-lock-control mechanism
US20020163206A1 (en) * 2001-05-04 2002-11-07 Bass Patrick M. Swinging elevator hatchway door interlock
WO2006097997A1 (fr) * 2005-03-15 2006-09-21 Mitsubishi Electric Corporation Dispositif de synchronisation pour porte de cabine d’ascenseur
US20180265332A1 (en) * 2015-02-13 2018-09-20 Otis Elevator Company Elevator synchronous door knife
WO2016176033A1 (fr) * 2015-04-10 2016-11-03 Macareno Ricardo Verrouillage mutuel de porte de cabine d'ascenseur

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