EP0874122A2 - Gewichtsausgleich- und Führungseinrichtung für Schiebetüren - Google Patents

Gewichtsausgleich- und Führungseinrichtung für Schiebetüren Download PDF

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Publication number
EP0874122A2
EP0874122A2 EP98107211A EP98107211A EP0874122A2 EP 0874122 A2 EP0874122 A2 EP 0874122A2 EP 98107211 A EP98107211 A EP 98107211A EP 98107211 A EP98107211 A EP 98107211A EP 0874122 A2 EP0874122 A2 EP 0874122A2
Authority
EP
European Patent Office
Prior art keywords
balancing
door
guide
tracks
vertically movable
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.)
Granted
Application number
EP98107211A
Other languages
English (en)
French (fr)
Other versions
EP0874122B1 (de
EP0874122A3 (de
Inventor
Oscar Ristolfi
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.)
Individual
Original Assignee
Individual
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 IT97MI000980 external-priority patent/IT1291671B1/it
Priority claimed from IT97MI000403 external-priority patent/IT237546Y1/it
Application filed by Individual filed Critical Individual
Publication of EP0874122A2 publication Critical patent/EP0874122A2/de
Publication of EP0874122A3 publication Critical patent/EP0874122A3/de
Application granted granted Critical
Publication of EP0874122B1 publication Critical patent/EP0874122B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05D13/14—Counterbalance devices with weights
    • E05D13/145—Counterbalance devices with weights specially adapted for overhead wings
    • 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

Definitions

  • the present invention relates to a device for the guiding and balancing of variable loads, and in particular it relates to some improvements to sliding doors which are vertically movable along guiding rails or tracks provided on both sides of an aperture or opening in a wall.
  • sliding door is understood to mean any type of vertically movable partition for the closing of apertures, such as, for example, sectional doors, roll-up doors or entrance doors, shutters and the like, which in general require an upward drawing system designed to allow for a partial or gradual compensation of the weight of the door during movement.
  • the invention relates to possible applications of the above mentioned balancing and/or guiding device and in particular to sectional doors provided with a static balancing device capable of varying its weight, depending on the variation of the door load during raising and lowering, and equipped as well with suitable lateral guides ensuring a higher degree of safety and reliability when the door is in movement.
  • vertically sliding sectional doors are substantially composed of a plurality of transversely extending panels which are hingeably joined to one another and move guided by lateral travel tracks or guides comprising a vertical section connected via a wide curved intermediate part to a rearwardly extending horizontal section, on which the entire weight of the panels or part thereof gradually bears during rising and lowering of the door.
  • a possible drive system for controlling opening and closing of the door must be located at the same height as the balancing springs, that is at a considerable height from the ground, with the serious risk of becoming detached from the supporting wall whenever it is subjected to an excessive force or other unforseen circumstances.
  • spring-type balancing systems is also not very recommendable in many applications, in particular when, for hygienic reasons, suitable covering and protection systems must be used.
  • sectional or vertically sliding doors are mainly used for closing large access openings.
  • they are composed of a plurality of panels provided on the side edges with support wheels sliding on lateral guide tracks which extend vertically upwards from the ground towards the ceiling, where they may continue in a vertical direction or in a substantially horizontal or slightly inclined arrangement so as to enable the door to be raised completely.
  • the door sliding tracks substantially comprise sheet-metal section in the form of channel shaped element laterally arranged to a support member which longitudinally extend for travel of the door.
  • the widthwise dimensions of the tracks must be designed or provided according to the diameter of the support wheels of the door.
  • the thickness of the door panels can vary depending on the structural requirements, for example when it is required to vary the thickness of the thermally insulating inner layer; consequently, the diameter of the support wheels as well as the dimensions of the respective guide tracks must be adapted or varied accordingly.
  • the main object of the present invention is to provide a balancing and guiding device for the drawing-up of variable loads, in particular for the guiding and balancing of vertically movable doors, resulting in an entirely mechanical solution suitable for satisfying a wide range of applicational requirements.
  • a further object of the present invention is to provide a system for the guiding and balancing of a variable load, in particular of vertically movable doors, which is provided with a suitable guiding and protection system during vertical sliding movement of the same balancing device.
  • Yet another object of the present invention is to provide a sectional door combined with a balancing and guiding device mentioned above, which makes use of guiding tracks for the door, which may be suitably protected at least over a vertical portion of the travel path so as to prevent an operator from being injured or foreign objects from entering into the guide tracks themselves, hindering or blocking the sliding movement of the door.
  • Another object of the invention is to provide a guide track for doors and the like, which is able to satisfy the above mentioned requirement for a safety guiding of the door and an easy mounting of the tracks and the door, as well as the removing of the same door from the tracks.
  • variable-weight balancing and guiding system according to claim 1.
  • a sectional sliding door substantially comprises a plurality of panels 10 transversely extending to the door and hingeably connected at the hinge points 11 and provided on the side edges with support wheels 12 allowing them to rotate along horizontal axes and to slide along guide tracks 13 which extend vertically upwards on both sides.
  • each guide track 13 comprises a lower section 13A which extends over a height equal to the overall length of the door, and an upper section 13B which may extend horizontally in a manner per se known as shown with 13C and 13D in Fig. 2.
  • the door is furthermore connected, by cables 14 and 15, to a weight balancing system 16 for raising and lowering assisting the door itself.
  • the balancing device 16 substantially is provided by a counterweight comprising an upper portion 17 of constant and predetermined weight, which is usually less than the maximum weight of the door to be balanced, for example one-half or more and a lower modular portion 18 of variable weight, intended to gradually compensate the variation of the weight to be balanced during upward or downward movement of the door.
  • the upper portion 17 of the counterweight substantially consists of a housing 19 into which a mass of material of predetermined weight is loaded.
  • the housing 19 is in the form of a metallic container provided by four angle-pieces 19' (see also Fig. 7) side arranged at the vertices of a rectangle and suitably welded to a bottom plate 20 and to an upper plate 21 respectively; the plate 21 in turn is provided with a fastening element 22 for connecting the entire counterweight 17, 18 to supporting cables 14, 15 which in turn are connected, via a system of transmission pulleys, to the panels 10 of the door to be balanced.
  • the balancing material inside the container 19 is composed of a plurality of superimposed plates 22 simply threaded between the angle-pieces 19 ' , the number of which can be varied depending on the desired weight portion of the door to be balanced. If desired, it would be also possible to use loose material, for example sand, instead of the plates 22, in which case the container 19 should be designed in a closed configuration having bottom and side walls. In both cases, it is possible to vary or adjust the weight of the upper portion 17 of the balancing device so as to adapt it to different conditions of use.
  • the lower portion 18 is characterized by a gradually variable weight in order to adapt the balancing action to the variation in weight of the door to be compensated as the same door moves along the guide tracks 13, as explained further below.
  • the lower portion 18 of the balancing device comprises a plurality of modular weight members 23 in the form of rectangular plates hingeably connected to one another at 24 on facing sides and to the upper portion 17 of the balancing device, so as to rotate angularly about horizontal hinging axes, transversely arranged to the longitudinal or vertical direction in which the entire counterweight of the balancing device may extend.
  • the plates 23 can rotate angularly with respect to one another between a maximum angularly spaced condition, shown in Fig. 4, and a superimposed condition, shown in Fig. 5.
  • the plates 23 are arranged in the open or angled condition of Fig. 2, forming an angle between adjacent plates of a little less than 180° since a stop element 26 (Fig. 6) is provided in a suitable angular position on each hinge 24 preventing the adjacent plates 23 from assuming a completely aligned or planar arrangement in the vertical direction, which would prevent the balancing device from functioning properly.
  • a stop element 26' for the lower plate 23' (Fig. 4) it is advantageous to provide a stop element 26' for the lower plate 23' (Fig. 4) to be differently positioned so as to keep the plate 23' always in a horizontal disposition in order to facilitate initial resting on the surface 25.
  • the plates 23 being hinged and foldable onto each other in concertina fashion, a different arrangement and a different hinge-type connection can be used; for example, the plates 23 can be kept suitably spaced apart from one another in a horizontal position by connecting them via flexible hinges or in another manner, provided this allows the weight of the plates 23 to be gradually discharged onto a resting surface 25 during lowering of the balancing device, thus compensating accordingly the variation in the weight of the door while moving along the sliding tracks 13.
  • the invention relates to a completely mechanical, static balancing device which is devoid of springs or other actuating parts and which allows extremely quick and simple adaptation to different conditions of use by simply varying and adjusting both the weight of the upper portion 17 and that of the lower modular portion 18.
  • the weight balancing device As shown in Figures 1, 2, 7 and 8, according to another aspect of the present invention, it is possible to provide the weight balancing device with a protective casing which encloses and guides the entire counterweight 17, 18 during its vertical movement; this prevents the counterweight itself from moving laterally and striking objects or persons located nearby during its raising and lowering movements.
  • the entire counterweight is enclosed in a vertical casing 26 of substantially tubular shape formed by two halves 26A and 26B from folded metal sheets; the part 26B of the casing 26 is designed to be fixed to a wall or resting surface while the part 26A is removably fixed to the former so as to provide access to the counterweight sliding inside the protective casing thus formed.
  • the door is substantially composed of a plurality of panels 10 connected to one another via a series of hinges 11 allowing them to rotate with respect to the sliding plane.
  • each track has a lower part 13A which extends vertically upwards from the ground and continues with an upper part 13B which may extend upwardly or be connected via a curved portion 13C to a horizontal guide 13D.
  • the upper panel 10 of the door is connected to the upper portion 17 of the balancing device by means of a pair of steel cables 14, 15 which are deviated by suitable pulleys 30 and 31 mounted on plates 32 and 33 fixed to a wall.
  • the door panels 10 are made of galvanised and painted double sheet-metal 10A, 10B connected by a tubular frame 34; each panel 10 is furthermore provided on each vertical side with a wheel 12 rotatably supported by the panel itself by means of the frame 34.
  • the wheels 12 can be made from plastic material or can be die-cast and mounted on a steel shaft 35 fixed to the frame 34 coplanar with the panel 10, lying in its middle plane.
  • the vertical tracks are made from cold-galvanised and press-folded steel sheet, and have, in the lower section 13A, a sufficiently large width to cover the edge portions of the panels 10 so as to protect an operator or prevent the entry of foreign material or bodies, which could block the sliding movement of the door.
  • the lower part 13A of the tracks 13, viewed in the cross-section of Fig. 9, comprises a guide portion 40 defining a path for the travel movement of the wheels 12, and a protective portion 41 consisting of an extension of the two side walls of the guide portion 40, which laterally extend towards and beyond the side edges of the panels 10; a seal 42 is fitted onto the edges of the guide portion 40 to contact both faces of the panels 10 of the door.
  • a rib 43 in the form of a "V" shaped protrusion is provided inside the two side walls of the track between the guiding portion 40 and the protective portion 41, both in order to reinforce the guide itself and prevent the wheels 12 from escaping outside.
  • the guide track In its upper part 13B, 13C and 13D, as shown in Fig. 10, the guide track has a section of smaller width, similar to the guide portion 40 of the lower track 13A, being devoid of protective portion 41 since the upper part of the track is present at a greater height than that which can be reached by an operator.
  • a damping device for example consisting of a spring or a steel plate, can be provided at the end of the horizontal section 13D of the guide track in order to provide a soft-action stop at the end of the travel path of the door.
  • the tracks 13A may be performed from a single metal sheet duly bent to perform the bottom wall and the shaped side walls to define the guide portion and the protective portion of the track; nevertheless, according to a preferred embodiment of the present invention, the lower portion 13A of each track consists of two separate parts: more precisely, as shown in Fig. 9 it consists of a rear part intended to be fixed to a wall along a side edge of an access opening, and a front part removably fixed to the rear part in an adjustable manner as explained further below.
  • the track 13 is formed by an L-shaped rear part 45 and by an L-shaped front part 46 facing each other to provide a channel shaped track.
  • the two parts 45 and 46 of the track have overlapping flat flanges 45A and 46A defining the bottom wall of the track, and side wings defining the guide portion, the intermediate V-shaped protrusion and the protective portion of the side walls.
  • the ribs or V-shaped protrusions 43 reinforce the track and create a barrier which prevents both any possibility of the wheels 12 from escaping laterally and the entry or forced introduction of objects from the outside into the guiding and sliding channel for the wheels 12 of the door.
  • seals 42 on the inwardly folded edges of the protective portion 41 of each front and rear parts 45 and 46 of the track.
  • the track can be mounted on a wall in an extremely simple manner by firstly fixing the rear part 45 by means of suitable plugs and subsequently fixing the front part 46 to the rear part 16A, for example by screwing in a set of screws into holes in aligned positions of the two bottom flanges 45A and 46A.
  • FIG. 11 A second embodiment for the track 13 is shown in Fig. 11; in the case of Fig. 11, only one part 47 of the track is provided with a rear flange 48, having an outwardly bent edge 49 to connect the same part 47 to a front part 50 of the track having a flat rear portion screwed at 51 to the bent edge 49.
  • a widthwise adjustment of the tract is made possible, for example by disposing a spacer 52 between the flange 49 and the rear edge of the front part 50 as schematically shown in the detail of Figure 12.
  • Fig. 13 relates to a third embodiment of a modified track 13 of Fig. 11, in which the protective portion of the track has been omitted while maintaining the advantage of the two part construction 53, 54 of the track according to the invention.
  • Fig. 14 relates to a fourth solution which maintains the advantage of the track of Fig. 9, providing at the same time reduction in cost, simplification in the design, preventing the wheel 12 from contacting and braking against the bottom wall of the track.
  • Fig. 14 a construction in two parts 55, 56 of the track has been again provided, comprising a guide portion and a protective portion according to the example of Fig. 9.
  • the V-shaped projection 43 has been only provided on the front part 56 of the track, while the rear part 55 of the track is provided with a bevelled corner 57 between the side and bottom walls preventing the wheel 12 to contact and wear against the same bottom of the guide track.
  • a first aspect of the invention relates to a balancing and guiding device for vertically sliding doors, such as sectional doors, rolled-up doors or the like, as well as to sliding doors provided with suitably protected guide tracks in combination with a door drawing system which uses a modular balancing device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Devices For Sliding Doors (AREA)
  • Wing Frames And Configurations (AREA)
  • Hinges (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP98107211A 1997-04-24 1998-04-21 Gewichtsausgleich- und Führungseinrichtung für Schiebetüren Expired - Lifetime EP0874122B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITMI970980 1997-04-24
IT97MI000980 IT1291671B1 (it) 1997-04-24 1997-04-24 Dispositivo di bilanciatura per carichi variabili,e sue applicazioni
IT97MI000403 IT237546Y1 (it) 1997-06-03 1997-06-03 Guida regolabile per portoni scorrevoli verticalmente
ITMI970403U 1997-06-03

Publications (3)

Publication Number Publication Date
EP0874122A2 true EP0874122A2 (de) 1998-10-28
EP0874122A3 EP0874122A3 (de) 2000-04-12
EP0874122B1 EP0874122B1 (de) 2004-09-08

Family

ID=26331470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107211A Expired - Lifetime EP0874122B1 (de) 1997-04-24 1998-04-21 Gewichtsausgleich- und Führungseinrichtung für Schiebetüren

Country Status (4)

Country Link
EP (1) EP0874122B1 (de)
AT (1) ATE275686T1 (de)
DE (1) DE69826056T2 (de)
ES (1) ES2229409T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005059440A1 (de) * 2005-12-13 2007-06-14 Bkb Profil Besitz Gmbh & Co. Kommanditgesellschaft Führungsschiene für eine Schiebetür eines Kraftfahrzeugs sowie Verfahren zu ihrer Herstellung
DE102013009784A1 (de) * 2013-06-12 2014-12-18 Hans-Georg Brühl GmbH Führungsschiene für ein Tor, insbesondere Rolltor, und Tor mit einer solchen Führungsschiene
DE102014225799A1 (de) 2014-12-15 2016-06-16 Hans-Georg Brühl GmbH Maschinenschutztor
DE102018218791B4 (de) * 2018-11-05 2020-07-09 Brühl Safety GmbH Maschinenschutztor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750042A (en) * 1928-04-23 1930-03-11 Brooks B Hoover Carage door
US1940583A (en) * 1929-07-13 1933-12-19 Demeulenaere Marcel Window shutter
US2017012A (en) * 1932-07-05 1935-10-08 Truscon Steel Co Door structure
US3094163A (en) * 1961-10-03 1963-06-18 Crawford Door Co Counterweighted upward acting door
FR2258773A7 (en) * 1974-01-17 1975-08-18 Nones Spa Guide section for counterbalanced garage door - has telescopic post containing a counterweight
US4026343A (en) * 1975-08-21 1977-05-31 James Don E Counterweighted bifold closures
FR2494757A1 (fr) * 1980-11-21 1982-05-28 Trendel Joseph Contrepoids, notamment pour porte basculante de garage
FR2653485A2 (fr) * 1989-08-02 1991-04-26 Doitrand Roland Dispositif de commande et de limitation de la charge des portes basculantes de garages et similaires en vue de leur relevage ou abaissement.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750042A (en) * 1928-04-23 1930-03-11 Brooks B Hoover Carage door
US1940583A (en) * 1929-07-13 1933-12-19 Demeulenaere Marcel Window shutter
US2017012A (en) * 1932-07-05 1935-10-08 Truscon Steel Co Door structure
US3094163A (en) * 1961-10-03 1963-06-18 Crawford Door Co Counterweighted upward acting door
FR2258773A7 (en) * 1974-01-17 1975-08-18 Nones Spa Guide section for counterbalanced garage door - has telescopic post containing a counterweight
US4026343A (en) * 1975-08-21 1977-05-31 James Don E Counterweighted bifold closures
FR2494757A1 (fr) * 1980-11-21 1982-05-28 Trendel Joseph Contrepoids, notamment pour porte basculante de garage
FR2653485A2 (fr) * 1989-08-02 1991-04-26 Doitrand Roland Dispositif de commande et de limitation de la charge des portes basculantes de garages et similaires en vue de leur relevage ou abaissement.

Also Published As

Publication number Publication date
EP0874122B1 (de) 2004-09-08
DE69826056T2 (de) 2005-09-15
ATE275686T1 (de) 2004-09-15
ES2229409T3 (es) 2005-04-16
EP0874122A3 (de) 2000-04-12
DE69826056D1 (de) 2004-10-14

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