EP2828459B1 - Mécanisme de levage pour porte escamotable en plafond sectionnelle - Google Patents

Mécanisme de levage pour porte escamotable en plafond sectionnelle Download PDF

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Publication number
EP2828459B1
EP2828459B1 EP13720538.1A EP13720538A EP2828459B1 EP 2828459 B1 EP2828459 B1 EP 2828459B1 EP 13720538 A EP13720538 A EP 13720538A EP 2828459 B1 EP2828459 B1 EP 2828459B1
Authority
EP
European Patent Office
Prior art keywords
shaft
door
sectional
main bodies
cavity
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.)
Active
Application number
EP13720538.1A
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German (de)
English (en)
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EP2828459A1 (fr
Inventor
Giovannantonio Maria GREPPI
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.)
Metallurgica Luigi Pessina Acciai SpA
Original Assignee
Metallurgica Luigi Pessina Acciai SpA
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1276—Counterbalance devices with springs with coiled ribbon springs, e.g. constant force springs
    • E05D13/1284—Counterbalance devices with springs with coiled ribbon springs, e.g. constant force springs specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1269—Spring safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1276—Counterbalance devices with springs with coiled ribbon springs, e.g. constant force springs
    • E05D13/1292—Spring safety devices
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
    • 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
    • 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
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the present invention relates to a mechanism for door lifting systems.
  • the inventive mechanism is particularly used to operate doors for garages, warehouses and the like, where sectional overhead doors are movably supported in suitable guides. It is known that the door can slide on a single generally vertical plane or on non parallel planes, like in the sectional doors. In order to avoid that the door opening and closure operations, when carried out either manually by the user or by motors, require a considerable power, elastic systems are used, applying a suitable load on the door through a cable connection, so as to balance its weight.
  • a torsional spring is wound on the shaft, the ends of the spring being fixed to the corresponding plates.
  • the balancing device is mounted at the door lintel, through support fixed to the wall, allowing free rotation of the shaft on its axis.
  • cables are wound, one end of the cable being connected to the door or to a panel of the door, generally the base or lowest one. Obviously the winding direction of the springs is chosen so as to oppose or balance the door weight, thus making its opening and closure easier.
  • Document US 2782456 discloses a spring balancing system for a window sash allowing to balance the window heavy weight during its operation. To keep the window fixed at any desired position, the balancing mechanism provides for a constant traction obtained through a spiral cable, whose traction is kept constant through a complex system balancing the door weight through further springs, gears and other devices opposing the natural trend of the spring to get released when lifting the window.
  • the present invention relates to a mechanism for a lifting mechanism for sectional devices used in doors or windows, such as sectional overhead doors for garages or lockups. More particularly, the device of the invention was particularly designed for lifting sectional doors and not for balancing movement of window or door sashes. Unlike the known balancing devices, which are complex and bulky systems difficult to be installed, the present invention exploits the natural relief trend of the spring during the lifting operation, allowing to lift the sectional door with a simpler device, without requiring the above mentioned further balancing devices. This inventive device is also easier to be manufactured and installed, being less cumbersome and more versatile to be positioned. In other words, the device of the present invention may be mounted either close or remote to the door lifting position, in view of the possibility to adjust the length of the lifting cables to the room configuration, as it will be better explained hereinafter in the detailed description of the device.
  • an object of the present invention is to provide a mechanism for lifting a sectional door allowing an easy assembling, that can be installed even by one person only.
  • Another object of the present invention is to provide a mechanism for lifting a sectional door allowing a reliable, quick and easy preload adjustment.
  • a further object of the present invention is to provide a mechanism having reduced dimensions and assembling easiness still keeping optimal operative characteristics.
  • Still another object of the present invention is to provide a mechanism for lifting sectional doors which can be industrially manufactured at low costs and very reduced size.
  • an object of the present invention is to provide a mechanism for lifting sectional doors, achieving a high level of safety for the installer in case of fault of one or more components of the device.
  • a lifting system 200 is shown, using a mechanism 100 to drive the garage door, according to a preferred embodiment of the present invention.
  • the lifting system 200 has vertical guides 210 fixed at the piers 320 of the garage entry 340, and horizontal guides 230 fixed on the garages ceiling 330 and connected with the vertical guides 210 by angle guides 220.
  • the overhead door 260 is of the sectional type and therefore comprises a set of panels 262 hinged to one another by hinges 264 and slidable in said guides 210-230 by any known means from a first closure position of entry 340 to a second opening position of entry 340.
  • the mechanism 100 In a central position relative to the lintel, the mechanism 100 is fixed to the ceiling 330. From the mechanism two opposite cables 250 are extending up to fixed points 266 of door 260, preferably on the base panel of the door; at the ends of the lintel 310 two snub pulleys 240 are provided for the cables 250. Referring again to Fig.
  • the mechanism 100 comprises, inside a housing 110, a gear including two main bodies 120; on a portion of the external surface of said bodies 120 there are conjugated profiles 130, namely toothed wheels meshing to one another, the remaining portion 140 of their external surface being provided with grooves for winding of said cables 250; one can also see the lower grooved end 152 of the shafts 150 of the bodies 120, whose axes are indicated with the letter X.
  • Fig. 3 the mechanism 100 is shown in a partially sectioned top view, where one can see the toothed profile 130 of the wheel, the winding of a band-like torsional spring 170, shaft 150, the upper bearing 160 and the upper end 154 of shaft 150. More particularly, in section B-B of Fig. 3a , coupling of two side plates 116 of housing 110 is shown. One can see also holes 115 of connection between upper plate 114 and side plates 116. a similar connection between lower plate 112 and side plates 116 is also provided.
  • the device 100 is always shown as a pair of bodies 120, it has to be pointed out that said bodies or wheels 120 are operating independently, namely each body or wheel 120 acts on one side of the sectional door to be lifted, but they must operate symmetrically and at the same time on the relevant side of the door. Indeed in case of very heavy sectional doors, it is contemplated to use four devices to lift the door.
  • the gear is constituted by coupling two toothed profiles 130 arranged on a horizontal plane; each profile 130 is arranged above the grooved surface 140, which in turn has a diameter lower that the inner diameter of the teeth, so as to avoid interference between winding of cables 250 on each main body 120; said surface 140 is provided with a spiral groove 142 of a predetermined pitch, on which cable 250 may be wound.
  • the toothed profile 130 and the grooved surface 140 are made on the body 120 which is internally hollow.
  • This cavity 190 allows to lodge inside the band torsional spring 170, whose ends 172 and 174 are connected to shaft 150 and to side wall 192 of said cavity 190.
  • Shaft 150 is mounted with its axis X arranged on a vertical plane, through a pair of upper and lower bearings 160, each bearing abutting against a shoulder 156 of shaft 150 and a lower plate 162 through a bend 115 of the upper plate 114.
  • Each lower plate 162 is suitably shaped so as to abut on projections 194 made on side wall 192 of cavity 190.
  • Fig. 4b shows the detail of coupling between housing plate 114 and holding plate 118 fixed to the garage ceiling 330 by usual screw anchors 119.
  • section C-C in Fig. 4b shows the way in which torsional spring 170 is fixed to shaft 150 at its first end 172 and at its second end 174 to wall 192 of the cavity 190.
  • Fig. 5 is a bottom view of a detail of mechanism 100 shown in Fig. 4 , showing the grooved lower end 152 of shaft 150 and a ratchet 180. More particularly the ratchet 180 consists of a saw-toothed wheel 182 keyed on end 152 and a gullet tooth 184 hinged on a bend 113 of lower plate 112 of housing 110. A spring 186 or other elastic element is arranged in such a way to push the gullet tooth 184 to be permanently engaged with the teeth of wheel 182.
  • groove 153 of end 152 of shaft 150 is so designed as to mate with a proper tool (not shown) for adjusting preload of mechanism 100.
  • mechanism 100 is made very much easier in comparison with similar prior art devices.
  • the mechanism 100 of the present invention is fastened to the ceiling by simple screw anchors.
  • the first ends of the lifting cables are fixed to the grooved surfaces and wound around them, while the other ends are fastened at the predetermined positions on the door or its panel.
  • the installer acts with the above mentioned tool on the grooved end of each gear shaft so as to rotate the relevant wheel, load the torsional spring and stretch the cable to a degree which is predetermined according to the construction specifications of the lifting system. Then the installer proceeds in the same way on the other wheel, so as to obtain a balanced tension of both lifting cables.
  • the mechanism of the present invention may comprise more main bodies 120 mutually mated, again by means of conjugated profiles 130.
  • a simple configuration of this kind may provide for the adoption of four main bodies 120 of the same diameter, arranged in series with one another, or each one engaged with the adjacent one. More particularly the grooves 142 for winding the lifting cables, will be made only on the bodies at the ends of said configuration.
  • Use of more toothed wheels may support the correct dimensions of the system when there are considerable loads to be lifted, for instance for hangar doors and the like, where it is necessary to provide for stronger lifting systems and mechanisms.
  • This embodiment also allows to use band springs 170 having different thickness or rigidity of the inner bodies relative to the outer bodies, again for the purpose of manage to the best the load to be lifted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Types And Forms Of Lifts (AREA)
  • Elevator Door Apparatuses (AREA)

Claims (4)

  1. Mécanisme (100) pour l'emploi en particulier dans systèmes de levage des portes sectionnelles comprenant un complexe mécanique incluant au moins une paire des corps principaux indépendants (120) prévus à l'intérieur d'une boîte (110), chaque corps principal (120) étant muni d'une cavité (190) et des profils (130) en dents engrenés entre eux et obtenus sur une partie de la surface latérale des dits corps principaux (120), la partie restante (140) de la dite surface latérale des dits corps principaux (120) étant munie des rainures (142) pour l'enroulement de deux câbles (250) du mécanisme (100) s'étendant dans le sens opposé et ayant un diamètre inférieur au diamètre intérieur des dents du profil (130), un arbre tournant (150) pour chaque corps principal (120) logé dans la cavité (190), un ressort de torsion (170) en bande pour chaque corps principal, avec une première extrémité (172) fixée au dit arbre (150) et une deuxième extrémité (174) fixée à la paroi interne (192) de la cavité (190), et un dispositif de franchissement comprenant un cliquet (180) consistant en une roue (182) à denture en scie, calée à une extrémité inférieurs (152) d'un arbre (150), un dent d'arrêt (184) encharné sur un pli (113) d'une plaque inférieure (112) de la boîte (110), et un organe élastique (186) pour presser le dent d'arrêt (184) à s'engager d'une façon permanente avec les dents de la roue (182), les dits ressorts de torsion en bande (170) étant dans la condition de pleine charge avec la porte fermée, et dans la condition de complète décharge avec la porte complètement ouverte, et la courbe de charge des ressorts de torsion en bande (170) est proportionnelle au poids exercé verticalement par la porte sectionnelle, le dit poids étant variable le long de la verticale pendant le levage de la porte sectionnelle et le poids de la partie de porte déjà levée étant soutenu par des guides horizontaux (230) et non par le ressort de torsion (170) en bande ; les dits deux câbles (250) opposés pouvant s'étendre jusqu'à points fixes (266) prévus sur le panneau de base de la porte sectionnelle, chaque câble extensible (250) étant muni d'une poulie de renvoi (240) du mécanisme (100) qui peut être montée à l'extrémité d'un linteau (310) ; les dits arbres tournants (150) étant montés avec leur axe X disposé dans un plan vertical et chaque arbre (150) étant muni au moins d'une paire des paliers (160) supérieur et inférieur, chaque palier étant maintenu en butée contre un épaulement (156) du dit arbre (150) et contre une plaque inférieure (162) moyennant un pli (115) d'une plaque supérieure (114), la dite plaque inférieure (162) étant façonnée pour reposer sur une saillie (194) de la paroi latérale (192) de la cavité (190).
  2. Mécanisme (100) selon la revendication 1, dont l'organe élastique (186) du cliquet (180) est un ressort.
  3. Mécanisme (100) selon la revendication 1 ou 2, dont l'extrémité (152) de l'arbre (150) est configurée pour l'engagement avec un instrument approprié pour régler le précharge du mécanisme (100).
  4. Mécanisme (100) selon une ou plusieurs revendications précédentes, dont la dite boîte (110) peut s'engager avec une plaque (118) munie des trous en permettant la fixation au mur ou plafond.
EP13720538.1A 2012-03-21 2013-03-20 Mécanisme de levage pour porte escamotable en plafond sectionnelle Active EP2828459B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000440A ITMI20120440A1 (it) 2012-03-21 2012-03-21 Dispositivo di bilanciamento per sistemi di sollevamento porte
PCT/IB2013/000483 WO2013140235A1 (fr) 2012-03-21 2013-03-20 Mécanisme de levage pour porte escamotable en plafond sectionnelle

Publications (2)

Publication Number Publication Date
EP2828459A1 EP2828459A1 (fr) 2015-01-28
EP2828459B1 true EP2828459B1 (fr) 2018-10-24

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Application Number Title Priority Date Filing Date
EP13720538.1A Active EP2828459B1 (fr) 2012-03-21 2013-03-20 Mécanisme de levage pour porte escamotable en plafond sectionnelle

Country Status (3)

Country Link
EP (1) EP2828459B1 (fr)
IT (1) ITMI20120440A1 (fr)
WO (1) WO2013140235A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107818223A (zh) * 2017-11-02 2018-03-20 山东万鑫建设有限公司 地下车库屋盖上安装升降机承载力验算与施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017200279A1 (de) * 2017-01-10 2018-07-12 Käuferle GmbH & Co. KG Vorrichtung für einen Gewichtsausgleich eines Tors
CN115306241B (zh) * 2022-07-08 2023-12-08 上海胜华波汽车电器有限公司 一种玻璃升降器滑块组合结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679659A (en) * 1951-06-16 1954-06-01 Edward L Grupp Sash balance
US2782456A (en) * 1954-04-21 1957-02-26 Mechano Gear Shift Company Heavy duty window balance
US4569490A (en) * 1984-03-28 1986-02-11 Barnes Group, Inc. Counterbalance mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107818223A (zh) * 2017-11-02 2018-03-20 山东万鑫建设有限公司 地下车库屋盖上安装升降机承载力验算与施工方法
CN107818223B (zh) * 2017-11-02 2020-09-01 金瀚建设有限公司 地下车库屋盖上安装升降机承载力验算与施工方法

Also Published As

Publication number Publication date
EP2828459A1 (fr) 2015-01-28
ITMI20120440A1 (it) 2013-09-22
WO2013140235A1 (fr) 2013-09-26

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