EP0393471A1 - Actuating mechanism for counterbalanced up-and-over doors - Google Patents

Actuating mechanism for counterbalanced up-and-over doors Download PDF

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Publication number
EP0393471A1
EP0393471A1 EP90106803A EP90106803A EP0393471A1 EP 0393471 A1 EP0393471 A1 EP 0393471A1 EP 90106803 A EP90106803 A EP 90106803A EP 90106803 A EP90106803 A EP 90106803A EP 0393471 A1 EP0393471 A1 EP 0393471A1
Authority
EP
European Patent Office
Prior art keywords
door
panel
tie rod
plate
console
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.)
Withdrawn
Application number
EP90106803A
Other languages
German (de)
French (fr)
Inventor
Melchiore Bonollo
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.)
B F T Di Bonollo Giancarlo & C SNC
Original Assignee
B F T Di Bonollo Giancarlo & C SNC
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 B F T Di Bonollo Giancarlo & C SNC filed Critical B F T Di Bonollo Giancarlo & C SNC
Publication of EP0393471A1 publication Critical patent/EP0393471A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
    • E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
    • E05F15/684—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts by chains
    • 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
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details 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
    • 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
    • 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

Definitions

  • the present invention relates to a mechanism for maneuvering the opening and closing of balanced overhead doors.
  • the mechanism according to the invention eliminates all the drawbacks previously indicated with the advantage of a very simplified structure and the possibility of using a low power motor which is easily dismantled, which reduces consumption and facilitates assembly. .
  • Two counterweights 8 and 9 are supported by cables which are returned by the pulleys 10 fixed to the upright 4 to be connected to the ends 11 of the panel, near the pivot 2; these counterweights ensure, according to a well known arrangement, the weight of the panel 1 is balanced by facilitating movement.
  • the control mechanism comprises a plate 12 mounted on the panel 1 at an orientation perpendicular to the surface of the latter, which plate extends towards the interior of the room closed by the door.
  • a member 13 driven in rotation by a geared motor 14 fixed to the plate 12.
  • the drive member 13 (pulley or toothed wheel) cooperates with a funicular element which can be formed by a cable or chain 15 fixed by one end at a point 16 provided on the upright 4 and by its opposite end at a point 17 made integral, by a tie rod 18, with the pivot 19; the latter is itself fixed to the console 20 which projects from the upright 4, towards the interior of the room closed by the door.
  • a spring 21, stretched between a fixed point of the console 20 and the tie rod 18, tends to close the angle formed by these two elements.
  • the spring 21 always keeps the cable or chain 15 taut, and this at all the positions of the door, as clearly shown in FIG. 3, 4 and 5.
  • the rollers 24 and 25 permanently maintain the chain 15 applied against the toothed wheel 13, when the door is in the open position (fig. 6) as well as in the closed position (fig. 7) and in in addition to all intermediate positions.
  • the chain 15 undergoes a return against the roller 22 while it is moved away by the roller 23, while in the open position of the door on the contrary, this chain 15 is subjected to a return against the roller 23 without touching the roller 22.
  • the power required to move the tilting panel is very low, especially when the weight of this panel is well balanced by the counterweights 8 and 9, while the control devices, namely the motor and its reducer, are well protected in their envelope and therefore do not require cleaning or handling, thus being capable of operating for a long time without any intervention.

Abstract

The mechanism is mounted on a plate (12) fixed to the door panel (1), and has a pulley (13) driven by a motor-reduction gear unit (14) to displace a cable (15). The cable is attached (16) to the door frame upright (4), and to an arm (18) pivotted from a bracket at the top of the frame. A return spring (21) attached to the arm maintains cable tension. In an alternative form the cable may be replaced by a chain operating in conjunction with toothed sprocket wheels.

Description

La présente invention a pour objet un mécanisme pour la manoeuvre à l'ouverture et à la fermeture des portes basculantes équilibrées.The present invention relates to a mechanism for maneuvering the opening and closing of balanced overhead doors.

On connaît des dispositifs mécaniques propres à amener de la position verticale de fermeture à la position horizontale d'ouverture une porte du type dit "basculant". Ces mécanismes comportent toujours un moto-­réducteur qui commande, par l'intermédiaire d'un accouplement vis sans fin - roue hélicoïdale, le mouvement du panneau.Mechanical devices are known which are capable of bringing from the vertical closed position to the horizontal open position a door of the so-called "tilting" type. These mechanisms always include a gear motor which controls, by means of a worm-helical wheel coupling, the movement of the panel.

Ces mécanismes présentent un certain nombre d'inconvénients notables, tels que les fortes dimensions d'encombrement, la nécessité d'un large siège d'appui et un temps considérable d'installation.These mechanisms have a number of significant drawbacks, such as the large overall dimensions, the need for a large support seat and considerable installation time.

Ces inconvénients ont été partiellement éliminés par le dispositif dé­crit dans le brevet italien No 1 159 772 déposé le 19 Février 1982 par la Demanderesse. Ce brevet propose en fait l'usage d'un mécanisme épicycloïdal pour la commande aussi bien des fermetures coulissantes que des portes basculantes, qui comporte l'avantage d'un encombrement ré­duit, sans toutefois éliminer les autres inconvénients sus-mentionnés.These drawbacks have been partially eliminated by the device described in Italian patent No. 1,159,772 filed February 19, 1982 by the Applicant. This patent in fact proposes the use of an epicyclic mechanism for the control of both sliding closings and overhead doors, which has the advantage of a reduced bulk, without however eliminating the other drawbacks mentioned above.

Le mécanisme suivant l'invention élimine tous les inconvénients précé­demment indiqués avec en outre l'avantage d'une structure très simpli­fiée et la possibilité d'utilisdation d'un moteur à faible puissance et facilement démontable, ce qui réduit la consommation et facilite le montage.The mechanism according to the invention eliminates all the drawbacks previously indicated with the advantage of a very simplified structure and the possibility of using a low power motor which is easily dismantled, which reduces consumption and facilitates assembly. .

D'autres avantages essentiels sont dûs à la présence d'un nombre réduit d'engrenages, ce qui assure un grand silence de fonctionnement du dis­positif ainsi qu'un montage aisé et une longue durée d'utilisation.Other essential advantages are due to the presence of a reduced number of gears, which ensures a great silence of operation of the device as well as an easy assembly and a long service life.

Le mécanisme suivant l'invention est défini à la revendication 1.The mechanism according to the invention is defined in claim 1.

Le mécanisme est illustré sur le dessin annexé dans lequel :

  • La fig. 1 montre en perspective une porte basculante équipée du mécanisme suivant l'invention, lequel a été supposé doté d'un câble de commande.
  • La fig. 2 est une vue schématique de côté du mécanisme, comprenant ici une chaîne de commande, la porte étant montrée en position ou­verte.
  • Les figs. 3, 4 et 5 montrent schématiquement par le côté, aux posi­tions de pleine ouverture, d'ouverture partielle et de fermeture, une porte basculante munie d'un mécanisme à câble de commande sui­vant l'invention.
  • La fig. 6 représente à échelle agrandie le mécanisme de commande du type à chaîne, la porte étant partiellement représentée de côté en position ouverte.
  • La fig. 7 montre le même mécanisme que celui suivant fig. 6, la porte étant en position fermée.
The mechanism is illustrated in the appended drawing in which:
  • Fig. 1 shows in perspective a tilting door equipped with the mechanism according to the invention, which has been assumed to have a control cable.
  • Fig. 2 is a schematic side view of the mechanism, here comprising a control chain, the door being shown in the open position.
  • Figs. 3, 4 and 5 show diagrammatically from the side, in the full opening, partial opening and closing positions, a tilting door provided with a cable control mechanism according to the invention.
  • Fig. 6 shows on an enlarged scale the chain type control mechanism, the door being partially shown from the side in the open position.
  • Fig. 7 shows the same mechanism as that according to FIG. 6, the door being in the closed position.

Dans la forme de réalisation illustrée en fig. 1, on voit le panneau 1 de la porte monté pivotant sur des pivots latéraux 2 mobiles à l'inté­rieur de glissières 3 prévues sur les montants latéraux 4 qui consti­tuent la structure portante de la porte.In the embodiment illustrated in FIG. 1, we see the panel 1 of the door pivotally mounted on lateral pivots 2 movable inside of slides 3 provided on the lateral uprights 4 which constitute the supporting structure of the door.

Le mouvement du panneau 1 est limité par des bras 5, réunis à l'un ou l'autre des pivots 6 qui font saillie latéralement sur ledit panneau 1 et aux pivots 7 fixés au montant 4.The movement of the panel 1 is limited by arms 5, joined to one or the other of the pivots 6 which project laterally on said panel 1 and to the pivots 7 fixed to the upright 4.

Deux contre-poids 8 et 9 sont soutenus par des câbles qui sont renvoyés par les poulies 10 fixées au montant 4 pour être reliés aux extrémités 11 du panneau, à proximité du pivot 2 ; ces contre-poids assurent, sui­vant une disposition bien connue, l'équilibrage du poids du panneau 1 en en facilitant le mouvement.Two counterweights 8 and 9 are supported by cables which are returned by the pulleys 10 fixed to the upright 4 to be connected to the ends 11 of the panel, near the pivot 2; these counterweights ensure, according to a well known arrangement, the weight of the panel 1 is balanced by facilitating movement.

Le mécanisme de commande comprend une platine 12 montée sur le panneau 1 à une orientation perpendiculaire à la surface de celui-ci, laquelle platine s'étend vers l'intérieur du local fermé par la porte. Sur cette platine 12 est montée un organe 13 entraîné en rotation par un moto-ré­ducteur 14 fixé à la platine 12.The control mechanism comprises a plate 12 mounted on the panel 1 at an orientation perpendicular to the surface of the latter, which plate extends towards the interior of the room closed by the door. On this plate 12 is mounted a member 13 driven in rotation by a geared motor 14 fixed to the plate 12.

L'organe d'entraînement 13 (poulie ou roue dentée) coopère avec un élé­ment funiculaire qui peut être formé par un câble ou chaîne 15 fixé par une extrémité en un point 16 prévu sur le montant 4 et par son extrémité opposée en un point 17 rendu solidaire, par un tirant 18, du pivot 19 ; ce dernier est lui-même fixé à la console 20 qui fait saillie sur le montant 4, vers l'intérieur du local fermé par la porte. Un ressort 21, tendu entre un point fixe de la console 20 et le tirant 18, tend à fer­mer l'angle formé par ces deux éléments.The drive member 13 (pulley or toothed wheel) cooperates with a funicular element which can be formed by a cable or chain 15 fixed by one end at a point 16 provided on the upright 4 and by its opposite end at a point 17 made integral, by a tie rod 18, with the pivot 19; the latter is itself fixed to the console 20 which projects from the upright 4, towards the interior of the room closed by the door. A spring 21, stretched between a fixed point of the console 20 and the tie rod 18, tends to close the angle formed by these two elements.

En fig. 2 le mécanisme est illustré avec les mêmes chiffres de référen­ces qu'à la fig. 1, mais la référence 15 désigne ici une chaîne qui re­lie le point 16 solidaire du montant 4 au tirant 18 relié à articulation au pivot 19 porté par la console 20, laquelle est orientée perpendicu­lairement au montant 4.In fig. 2 the mechanism is illustrated with the same reference numbers as in FIG. 1, but the reference 15 designates here a chain which connects the point 16 secured to the upright 4 to the tie rod 18 connected to articulation with the pivot 19 carried by the console 20, which is oriented perpendicular to the upright 4.

En fig. 3, 4 et 5 la porte est représentée respectivement aux positions d'ouverture totale, de fermeture partielle et de fermeture totale, avec le câble 15 toujours appliqué contre la poulie 13 en étant renvoyé par la poulie 22 aussi bien lorsque la porte est à la position ouverte de fig. 3 qu'à la position de semi-fermeture suivant fig. 4, tandis que le­dit câble est renvoyé par la poulie 23 lorsque la porte se trouve à la position fermée de fig. 5.In fig. 3, 4 and 5 the door is shown respectively in the positions of total opening, partial closing and total closing, with the cable 15 still applied against the pulley 13 while being returned by the pulley 22 as well when the door is at the open position of fig. 3 that in the semi-closed position according to fig. 4, while said cable is returned by the pulley 23 when the door is in the closed position of FIG. 5.

En fig. 6 et 7 le mécanisme est illustré de manière plus détaillée avec une chaîne 15 qui est renvoyée sur la roue dentée 22 montée sur un bras de la platine 12 lorsque la porte est ouverte, tandis que ladite chaîne coopère avec la roue dentée 23 (fig. 7) lorsque la porte est fermée. Dans tous les cas cependant, la chaîne 15 est maintenue appliquée contre la roue dentée 13 prévue en saillie sur la platine 12 et mise en rotation par le moto-réducteur 14, et contre les galets 24 et 25 également supportés par la platine 12.In fig. 6 and 7 the mechanism is illustrated in more detail with a chain 15 which is returned to the toothed wheel 22 mounted on an arm of the plate 12 when the door is open, while said chain cooperates with the toothed wheel 23 (fig. 7) when the door is closed. In all cases, however, the chain 15 is kept applied against the toothed wheel 13 projecting from the plate 12 and rotated by the geared motor 14, and against the rollers 24 and 25 also supported by the plate 12.

Le fonctionnement du mécanisme ressort clairement du dessin annexé sur lequel on peut voir qu'en tournant la poulie ou, respectivement, la roue dentée 13 se déplace le long du câble ou de la chaîne 15 tendu entre le tirant 18 et le point 16 (fig. 1) fixé au montant 4, en obligeant le panneau 1 à se soulever à l'ouverture ou à descendre à la fermeture, en fonction du sens de rotation de l'organe 13.The operation of the mechanism is clear from the appended drawing on which it can be seen that by turning the pulley or, respectively, the toothed wheel 13 moves along the cable or chain 15 stretched between the tie rod 18 and the point 16 (fig 1) fixed to the upright 4, forcing the panel 1 to lift when opening or to descend when closing, depending on the direction of rotation of the member 13.

Le ressort 21 maintient toujours tendu le câble ou chaîne 15, et ce à toutes les positions de la porte, comme clairement montré en fig. 3, 4 et 5. Les galets 24 et 25 maintiennent en permanence la chaîne 15 ap­pliquée contre la roue dentée 13, lorsque la porte se trouve à la po­sition ouverte (fig. 6) aussi bien qu'à la position fermée (fig. 7) et en outre à toutes les positions intermédiaires. En position d'ouverture (fig. 6), la chaîne 15 subit un renvoi contre le galet 22 tandis qu'elle est éloignée par le galet 23, alors qu'à la position ouverte de la porte au contraire, cette chaîne 15 est soumise à un renvoi contre le galet 23 sans toucher le galet 22.The spring 21 always keeps the cable or chain 15 taut, and this at all the positions of the door, as clearly shown in FIG. 3, 4 and 5. The rollers 24 and 25 permanently maintain the chain 15 applied against the toothed wheel 13, when the door is in the open position (fig. 6) as well as in the closed position (fig. 7) and in in addition to all intermediate positions. In the open position (fig. 6), the chain 15 undergoes a return against the roller 22 while it is moved away by the roller 23, while in the open position of the door on the contrary, this chain 15 is subjected to a return against the roller 23 without touching the roller 22.

La puissance nécessaire au déplacement du panneau basculant est très ré­duite, notamment lorsque le poids de ce panneau se trouve bien équilibré par les contre-poids 8 et 9, tandis que les appareillages de commande, à savoir le moteur et son réducteur, sont bien protégés dans leur enve­loppe et ne nécessitent donc pas de nettoyage, ni de manutention, en étant ainsi susceptibles de fonctionner longtemps sans aucune interven­tion.The power required to move the tilting panel is very low, especially when the weight of this panel is well balanced by the counterweights 8 and 9, while the control devices, namely the motor and its reducer, are well protected in their envelope and therefore do not require cleaning or handling, thus being capable of operating for a long time without any intervention.

On conçoit sans peine le silence de fonctionnement du mécanisme obtenu par suite de l'accouplement du type à vis sans fin rectifiée couronne en matière plastique, cet accouplement étant entièrement enfermé dans un carter étanche.It is easy to imagine the silence of operation of the mechanism obtained as a result of the coupling of the rectified worm screw type plastic crown, this coupling being entirely enclosed in a sealed casing.

Claims (3)

1. Mécanisme pour la manoeuvre à l'ouverture et à la fermeture, des portes basculantes du type à pivots mobiles à l'intérieur de guides pré­vus sur les montants latéraux du panneau de la porte, et à contre-poids reliés par des câbles et des poulies de renvoi auxdits pivots, caracté­risé en ce qu'il comprend une platine profilée (12) fixée au montant (1) et munie d'un organe (13) qui est entraîné en rotation par un moto-­réducteur (14) et sur lequel est renvoyé un élément funiculaire (15) fixé par une extrémité à un point (16) solidaire de l'un des montants (4) du panneau, et à l'autre extrémité à un tirant (18), lui-même relié à pivotement (en 19) à une console (20) solidaire du montant (4) préci­té, en subissant un renvoi contre des galets (22 et 23) montés sur la platine (12).1. Mechanism for the opening and closing maneuver of swinging doors of the movable pivot type inside guides provided on the lateral uprights of the door panel, and with counterweight connected by cables and return pulleys to said pivots, characterized in that it comprises a profiled plate (12) fixed to the upright (1) and provided with a member (13) which is rotated by a gear motor (14) and on which is returned a funicular element (15) fixed by one end to a point (16) integral with one of the uprights (4) of the panel, and at the other end to a tie rod (18), itself connected to pivoting (in 19) to a console (20) integral with the above-mentioned upright (4), undergoing a deflection against rollers (22 and 23) mounted on the plate (12). 2. Mécanisme suivant la revendication 1, caractérisé en ce que la pla­tine (12) qui fait saillie vers l'intérieur de la porte basculante (1) supporte, en plus de l'organe d'entraînement (13), deux autres galets (22 et 23) au niveau desquels l'élément funiculaire (15) subit un renvoi au cours des mouvements d'abaissement ou d'élévation du panneau (1).2. Mechanism according to claim 1, characterized in that the plate (12) which projects towards the inside of the tilting door (1) supports, in addition to the drive member (13), two other rollers ( 22 and 23) at which the funicular element (15) is deflected during the lowering or raising movements of the panel (1). 3. Mécanisme suivant les revendications 1 ou 2, caractérisé en ce qu'un tirant (18), relié à pivotement (en 19) à une console (20) prévue en saillie à l'intérieur du local fermé par la porte et rendu solidaire de l'un des montants (4), est réuni à une extrémité de l'élément funiculai­re (15) en étant rappelé par un ressort (21) interposé entre ledit ti­rant (18) et la console (20), de manière à assurer la tension permanente du brin de cet élément (15) compris entre l'organe (13) et le tirant (18) au cours de la manoeuvre du panneau (1) à la fermeture ou à l'ou­verture.3. Mechanism according to claims 1 or 2, characterized in that a tie rod (18), pivotally connected (in 19) to a console (20) provided projecting inside the room closed by the door and made integral of one of the uprights (4), is joined at one end of the funicular element (15) being recalled by a spring (21) interposed between said tie rod (18) and the console (20), so as to ensure the permanent tension of the strand of this element (15) between the member (13) and the tie rod (18) during the operation of the panel (1) when closing or opening.
EP90106803A 1989-04-21 1990-04-10 Actuating mechanism for counterbalanced up-and-over doors Withdrawn EP0393471A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8985570A IT1235380B (en) 1989-04-21 1989-04-21 MECHANISM FOR THE MOTORIZATION IN OPENING AND CLOSING OF BALANCED OVERHEAD DOORS.
IT8557089 1989-04-21

Publications (1)

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EP0393471A1 true EP0393471A1 (en) 1990-10-24

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ID=11328262

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Application Number Title Priority Date Filing Date
EP90106803A Withdrawn EP0393471A1 (en) 1989-04-21 1990-04-10 Actuating mechanism for counterbalanced up-and-over doors

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EP (1) EP0393471A1 (en)
IT (1) IT1235380B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004697A4 (en) * 1991-03-08 1993-01-12 Yves Desmet Motorization-mechanism for panel doors
US10980213B2 (en) 2016-04-01 2021-04-20 Delaval Holding Ab Milking module, a milking arrangement, and a method for milking a group of animals

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH507443A (en) * 1968-10-04 1971-05-15 Altrogge Wilhelm Ing Dr Overhead door operator with vertically directed auxiliary power
DE2522384A1 (en) * 1975-05-21 1976-12-02 Martin Brabandt Powered garage door actuator mounted on door - has actuating belt connected to wall and programmed motor switches
GB2074228A (en) * 1980-04-22 1981-10-28 Henderson Group Ltd Pc Door operating mechanism
GB2106589A (en) * 1981-09-22 1983-04-13 Ernest Partsch Drive mechanism for an up-and-over door

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH507443A (en) * 1968-10-04 1971-05-15 Altrogge Wilhelm Ing Dr Overhead door operator with vertically directed auxiliary power
DE2522384A1 (en) * 1975-05-21 1976-12-02 Martin Brabandt Powered garage door actuator mounted on door - has actuating belt connected to wall and programmed motor switches
GB2074228A (en) * 1980-04-22 1981-10-28 Henderson Group Ltd Pc Door operating mechanism
GB2106589A (en) * 1981-09-22 1983-04-13 Ernest Partsch Drive mechanism for an up-and-over door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004697A4 (en) * 1991-03-08 1993-01-12 Yves Desmet Motorization-mechanism for panel doors
US10980213B2 (en) 2016-04-01 2021-04-20 Delaval Holding Ab Milking module, a milking arrangement, and a method for milking a group of animals

Also Published As

Publication number Publication date
IT1235380B (en) 1992-06-30
IT8985570A0 (en) 1989-04-21

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