EP3243999B1 - Structure for supporting and moving a sheet of an industrial door - Google Patents

Structure for supporting and moving a sheet of an industrial door Download PDF

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Publication number
EP3243999B1
EP3243999B1 EP17170912.4A EP17170912A EP3243999B1 EP 3243999 B1 EP3243999 B1 EP 3243999B1 EP 17170912 A EP17170912 A EP 17170912A EP 3243999 B1 EP3243999 B1 EP 3243999B1
Authority
EP
European Patent Office
Prior art keywords
carriage
sheet
towing
upright
structure according
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
EP17170912.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3243999A1 (en
Inventor
Davide PELLINI
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.)
Apostoli Daniele Srl
Original Assignee
Apostoli Daniele Srl
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 Apostoli Daniele Srl filed Critical Apostoli Daniele Srl
Publication of EP3243999A1 publication Critical patent/EP3243999A1/en
Application granted granted Critical
Publication of EP3243999B1 publication Critical patent/EP3243999B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • 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
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/51—Power-operated mechanisms for wings using fluid-pressure actuators for folding 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/46—Magnets
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • E06B2009/135—Horizontal shutter reinforcements

Definitions

  • the present invention relates to a structure for supporting and moving a sheet of an industrial door and to industrial doors comprising a movable sheet between an extended closed position and a compacted open position of the industrial door.
  • the sheet is compacted by lifting it upwards.
  • the fabric in order to provide the necessary resistance to the force of wind, the fabric is rigidly supported by transverse bars, for example, metal tubes.
  • the ends of these bars are secured to guide carriages that slide vertically along lateral guide uprights.
  • the door is provided with a motor that controls in rotation a horizontal shaft extending over the sheet from one side of the door to the other.
  • a plurality of horizontally equidistant belts supporting the lower stiffening bar.
  • the belts are wound around the horizontal shaft. While lifting the lower bar, the respective guide carriages are supported against the carriages above, towing all or part of the guide carriages upwards until the desired sheet height with respect to the ground is reached.
  • the bars are not rigid enough and at least the lower bar must be replaced by a beam or a reticular structure.
  • EP 2 636 835 A discloses a fire protection gate with a folding wing made up of serially arranged and hingedly connected segments, which are equipped with travelling trolleys seated staggeredly in fixed guide rails, and at least one of the wing's segments is connected to a string-type driving device.
  • GB 2 306 995 A discloses a further structure for supporting and moving a sheet of an industrial door.
  • the object of the present invention is to propose a structure for supporting and moving a sheet of an industrial door able to at least partially overcome the aforementioned disadvantages.
  • an object of the invention is to propose a structure for supporting and moving a sheet having reduced bulk in height.
  • Another object of the invention is to propose a structure for supporting and moving the sheet of an industrial door that does not require the use of heavy and bulky handling apparatus even when the door's width is increased.
  • At 1 is indicated collectively an industrial door provided with a structure for supporting and moving the sheet according to the present invention.
  • the door 1 closes an opening 2, generally rectangular in shape, delimited by two side walls 3 and an upper horizontal wall 4.
  • the door 1 comprises a sheet 10 and a structure 5 for supporting and moving the sheet 10.
  • Such structure 5 is of a type suitable for progressively compacting the sheet 10 by raising its lower edge so as to progressively increase the distance of the sheet from the ground to the door's maximum opening position wherein the sheet is completely shirred beneath the upper horizontal wall 4 of the opening 2.
  • the sheet 10 is furthermore stiffened, i.e. placed in tension, by a plurality of transversal tensioning elements 12 which extend substantially from one side of the sheet 10 to the other.
  • these tensioning elements 12 are positioned in respective pockets - not shown - formed at regular intervals along the entire height of the sheet 10.
  • the structure for supporting and moving 5 comprises two vertical support uprights 20, each adapted to be secured to a respective side wall 3, or to a special support extending from such wall.
  • each vertical support upright 20 has an "H"-shaped cross-section, i.e. formed by a first wall 202 facing the sheet 10 and oriented perpendicularly to the plane whereon the sheet 10 lies when it is fully extended, by a second wall 204 perpendicular to the first and extending from the median line of the first wall 202, and by a third wall 206 parallel to the first and suitable to anchor the upright to the side wall 3.
  • a towing carriage 30 is slidably mounted on each upright 20.
  • towed carriages 50 are slidably mounted on each upright 20.
  • the towed carriages 50 are superposed on each other vertically along each upright 20.
  • the towing carriage 30 is positioned below the lower towed carriage 50.
  • the lower towed carriage 50 is engageable by the towing carriage 30 during the ascent phase of the towing carriage 30 along the respective vertical support upright 20.
  • the towed carriages 50 are identical to each other.
  • Each towing carriage 30 and each towed carriage 50 are provided with sheet connection means 32 suitable for connecting to one end of a respective transverse tensioning element 12 of the sheet.
  • Each towing carriage 30 and each towed carriage 50 is further provided with upright coupling means 34 suitable to transfer the traction load exerted on the carriage by the respective transverse tensioning element 12 onto the respective vertical support upright 20.
  • the structure 5 further comprises, for each line of carriages 30, 50 an upright 20, a carriage pulling device 100 operable to translate vertically.
  • Each pulling device 100 is suitable to pull the towing carriage 30 at least in the downward-facing direction along the vertical support upright 20.
  • Each pulling device 100 is positionable between the respective vertical support upright 20 and the sheet connection means 32.
  • the entire load exerted on the structure 5 by the sheet 10 through the tensioning elements 12 is absorbed by the towing carriages 30 and the towed carriages 50 and transferred by the carriages to the uprights 20 through the upright coupling means 34.
  • the carriage pulling devices 100 are not subject to any traction force and are free to perform only the carriage lifting function.
  • the pulling devices are not subjected to frictional forces derived from the traction load of the sheet.
  • the first vertical wall 202 defines, from the part facing the side wall 3, a carriage support surface 202' orthogonal to the direction of the traction force exerted by the transverse sheet-tensioning elements 12.
  • the upright coupling means 34 comprise at least one coupling wheel 342 arranged so as to roll along the carriage support surface 202'.
  • each carriage 30, 50 is provided with at least one pair of coupling wheels 342, coaxial and parallel to each other.
  • the two wheels 342 of the pair of wheels are separated from the second vertical wall 204 of the upright 20.
  • the towing carriage 30 is provided with two pairs of coupling wheels 342, vertically superposed on each other, so as to increase the load distribution from the carriage 30 to the upright 20.
  • each towing carriage 30 and each towed carriage 50 are also provided with at least one pair of anti-rotation members 36 arranged to skim without contact the opposite sides of the second vertical wall 204 of the upright 20.
  • anti-rotation members 36 are therefore not active during the normal sliding of the carriages, as there is play between them and the second vertical wall 204.
  • the anti-rotation members 36 limit the rotation of the carriages around the vertical sliding axis, thus containing the sliding frictions along the upright 20.
  • the anti-rotation members comprise a pair of opposing wheels 362 parallel to the second vertical wall 204.
  • Each towing carriage 30 and each towed carriage 50 comprises a pair of parallel side plates 38. These plates 38 are parallel to the second vertical wall 204 of the upright 20.
  • first vertical wall 202 of the upright 20 and at least one part of the second vertical wall 204 are interposed between the two plates 38.
  • the two side plates 38 are integral with each other by means of a junction element 40.
  • junction element 40 connects the end portions of the plates 38 which extend towards the sheet 10 beyond the first vertical wall 202.
  • junction element 40 is in the form of a pin which, in addition to performing the function of connecting the plates 38, constitutes an element of the sheet connection means 32.
  • the side plates 38 have, at least superiorly, respective upper bent portions 382 facing each other so as to form a horizontal support surface for the carriage above.
  • bent portions 382 of the plates 38 of the towing carriage 30 form an abutment element by which the pulling device pulls the towing carriage at least from the bottom upwards.
  • the plates 38 of the towing carriage also have similar bent lower portions 384, whereby the pulling device pulls the towing carriage also downwards.
  • the bent portions 382, 384 have a gap 382' which accommodates a respective edge of the first vertical wall 202 of the upright 20.
  • Such geometric coupling between the bent portions and the first vertical wall permits the tilting of the carriages to be limited with respect to a horizontal axis orthogonal to the side plates 38.
  • any jamming of the carriage due to tilting with respect to a horizontal axis orthogonal to the side plates 38 is avoided by the use of at least one second pair of rolling anti-rotation members 36a arranged so as to skim without contact over the side of the first vertical wall 202 of the upright 20 facing the sheet.
  • these second rolling anti-rotation members 36a are therefore not active during the normal sliding of the carriages, as there is play between them and the first vertical wall 202.
  • the second rolling anti-rotation members 36a comprise at least one pair of second opposing wheels 362a, preferably two pairs superposed in height, with an axis parallel to the first vertical wall 202.
  • such second opposing wheels 362a are supported by parallel side plates 38.
  • the second rolling anti-rotation members 36a may then replace the geometric coupling between the bent portions 382 and the first vertical wall 202 described above.
  • each carriage pulling device 100 comprises a tubular element 102 extending substantially for the entire height of the industrial door. This tubular element is suitable to be installed alongside a respective vertical support upright 20.
  • tubular element 102 is supported by the first vertical wall 202 of the respective vertical upright 20, for example by means of two end collars 104 bracketed to the first vertical wall.
  • the tubular element 102 defines an inner chamber 106.
  • the inner chamber 106 preferably extends substantially for the entire length of the tubular element 102.
  • a towing element 108 is housed in the inner chamber 106.
  • the towing element 108 is operable to translate axially within the inner chamber 106.
  • An outer slide 110 is operatively connected to the towing element 108.
  • the outer slide 110 is suitable to slide along the tubular element 102 following the translation of the towing element 108.
  • the outer slide 110 is configured to support the towing carriage 30 at least in the ascent phase.
  • the outer slide 110 has an upper end portion with a transverse footprint such as to abut against the upper bent portions 382 of the parallel side plates 38 of the towing carriage 30.
  • the outer slide 110 also has a lower end portion with a transverse footprint such as to abut against the lower bent portions 384 of the parallel side plates 38 of the towing carriage 30.
  • the outer slide 110 is confined between the bent portions 382, 384 of the towing carriage 30. Consequently, the translation of the slide 110 results in a corresponding translation of the towing carriage 30.
  • the inner chamber 106 forms the chamber of a cylinder fluidically connectable to a control circuit, for example a pneumatic circuit operating with compressed air.
  • a control circuit for example a pneumatic circuit operating with compressed air.
  • the towing element 108 is in the form of a rodless piston which may translate into the inner chamber 106 under the action of a control fluid, such as compressed air.
  • control circuit comprises a compressed air generator 112 and an operable solenoid valve 114 so as to send pressurized air at least into the ascent portion 106' of the inner chamber 106 which, when pressurized, pushes the piston upwards, and discharges the other descent portion 106" of the inner chamber 106.
  • the solenoid valve 114 is operable to send pressurized air also into the descent portion 106" of the inner chamber which, when pressurized, pushes the piston downwards.
  • control circuit further comprises, along the tubes connecting the solenoid valve 114 to the cylinder 102, flow regulators 116 suitable to permit an adjustment of the piston's ascending and descending speeds, and hence of the towing carriage 30.
  • the rodless piston 108 is a magnetic or ferromagnetic piston.
  • the outer slide 110 is made of a magnetic and/or ferromagnetic material so as to be pulled in translation by the magnetic piston without direct physical contact.
  • the tubular element 102 has a circular cross-section
  • the magnetic piston 108 is coaxial to the tubular element and is of a substantially cylindrical shape
  • the outer slide 110 is of a substantially annular shape coaxial to the magnetic piston 108.
  • the magnetic piston 108 comprises at least one central magnetic element 1082 and two end polar expansions 1084.
  • the central magnetic element 1082 has substantially a radial magnetization, i.e. it has a first polarity at least on one of its outer annular portions.
  • the end polar expansions 1084 have a second polarity, opposite the first, at least on one of their outer annular portions.
  • the magnetic piston 108 is, relative to the longitudinal axis, a tripolar unit of the South-North-South or North-South-North type.
  • the outer slide 110 comprises at least one outer magnetic unit 1102 of a substantially annular shape coaxial to the internal magnetic piston unit 108.
  • This external magnetic unit 1102 comprises an annular magnetic element 1104 and a cylindrical polar expansion 1106.
  • the annular magnetic element 1104 surrounds the central magnetic element 1082; the cylindrical pole expansion 1106 surrounds the annular magnetic element 1104 and ends with end flanges 1108 surrounding the end polar expansions 1084.
  • the annular magnetic element 1104 is radially magnetized and has the second polarity on an inner annular portion thereof.
  • the end flanges 1108 have the first polarity at least on an annular portion thereof facing towards the end polar expansions 1084.
  • the annular magnetic element 1104 has an axial extension substantially equal to that of the central magnetic element 1082 and is radially magnetized so as to generate, between said central magnetic element 1082 and the annular magnetic element 1104, a magnetic field with mainly radial lines of force which tend to radially attract the two elements.
  • the cylindrical polar expansion 1106, in contact with the outer surface of the annular magnetic element 1104, has an axial extension greater than that of the annular magnetic element 1104, so that the end flanges 1108, facing radially inwardly, are axially spaced from the side walls of the annular magnetic element 1104.
  • the polarization of these end flanges 1108 opposes that of the inner surface of the annular element 1104 and opposes that of the end polar expansions 1108.
  • the internal magnetic piston 108 Due to the cylindrical configuration and the magnetization of the magnetic piston 108 and the outer slide 110, and due to the circular cross-section of the tubular guide element 102, the internal magnetic piston 108 is practically "suspended", that is, in equilibrium with the forces inside the tubular guide element 102. In this way, the contact and rubbing friction of the two magnetic units with the tubular guide element is minimal, resulting in an advantage with regard to pulling efficiency.
  • the inner and outer polar expansions 1084, 1108 perform primarily the function of flow conveyors of the magnetic field.
  • the lines of force of the magnetic fields generated by the inner and outer magnetic units which are not radially directed and which would therefore be lost, are "captured" by the polar expansions and also directed in a radial direction.
  • the concatenation of the lines of force between the two magnetic groups is thus maximized by the polar expansions, so that the flow of magnetic field dispersed in the environment and thus unusable is reduced to a minimum. This also contributes to increasing the pulling efficiency.
  • the central magnetic element 1082 is obtained by using at least two identical permanent cylindrical magnets 1086 magnetized axially and an intermediate cylindrical polar expansion 1088 placed between one permanent magnet and the other, such permanent cylindrical magnets 1086 being oriented with adjacent poles of the same sign.
  • the central magnetic element 1082 and the end polar expansions 1084 are axially connected by means of a threaded bar.
  • the contact surfaces of the piston and slide with the tubular guide element are covered with respective sliding rings with a low friction coefficient.
  • each pulling device 500 comprises a pulling member 502 integral to the towing carriage 30.
  • the towing member 502 is fixed to a wire or a cable 504.
  • the wire or cable 504 is connected to a winch 506 suitable to be positioned above the industrial door for winding/unwinding the wire or cable 504.
  • the towing member comprises a cross member welded to the two side plates 38 of the towing carriage 30.
  • the bent upper portions 382 of the two plates serve to form an abutment plane for the above towing carriage 50.
  • the winch 506 is operable in rotation by a motor apparatus 508.
  • each winch 506 has its own motor apparatus 508. In this way, the two pulling devices, although synchronized, may be moved independently of each other.
  • the sheet connection means 32 includes a tie-rod 322 suitable for connecting to one end of a sheet-tensioning rope, belt or cable 12.
  • the structure for supporting and moving the sheet described above is particularly suitable for use in combination with sheet-tensioning elements made of ropes, belts or other elements without stiffness or having a much lower stiffness compared to the metal bars or tubes currently used.
  • tensioning elements allow the pulling devices to translate in height also in a non-perfectly synchronized manner.
  • Tensioning elements made with ropes, belts or cables are elements that work in traction which instead do not pose resistance to compression and pose little resistance to torsion.
  • each tensioning element 12 at rest i.e. not subject to the force of the wind, is subjected to the load required to give the sheet the desired geometry in the presence of wind. It should be noted in this regard that, preferably, tie-rods and tensioning elements 12 do not yield axially since they are not elastic.
  • the sheet 10 in the absence of wind, lies in a plane perpendicular to the floor with the tensioning elements 12 lying in their seats and forming a curve facing downward; in the presence of wind, the curves drawn by the tensioning elements rotate in a plane parallel to the floor, giving the sheet the shape of a sail.
  • tensioning elements 12 at rest are then subjected to a suitable pre-tensioning, sized according to the displacement that is desired to be provided to the sheet in the presence of wind.
  • Such pre-tensioning is however chosen in such a way that, in the absence of wind or very low wind, the traction force exerted on the carriages does not generate particularly significant frictions for sliding along the respective uprights.
  • the pulling devices described above permit the tensioning elements to move in height only by acting on their ends, without needing to employ intermediate lifting belts supported by a horizontal shaft extending above the door along its whole width.
  • the supporting and moving structure according to the invention further comprises a sheet-supporting horizontal cross member 300 suitable to be fixed to the wall 4, which upwardly limits the opening of the industrial door and is configured to be fixed to an upper edge of the sheet of the industrial door.
  • An industrial door using the structure for supporting and moving the sheet described above has many advantages.
  • the horizontal shaft for winding/unwinding the sheet lifting belts, the related motor, the support bearings of the shaft end, and the lifting belts are eliminated, resulting in advantages with regard to bulk, production costs, storage, transportation, installation and maintenance.
  • Bar tensioning elements or metal pipes may be replaced with ropes, belts, or cables, which are much lighter, economical and much less bulky to store and transport.
  • the structure particularly in the case of pneumatic drive devices, is very clean and light, while being robust enough to withstand the loads to which the sheet is subjected.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
EP17170912.4A 2016-05-13 2017-05-12 Structure for supporting and moving a sheet of an industrial door Active EP3243999B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUA2016A003426A ITUA20163426A1 (it) 2016-05-13 2016-05-13 Struttura di supporto e movimentazione di un telo per una porta industriale

Publications (2)

Publication Number Publication Date
EP3243999A1 EP3243999A1 (en) 2017-11-15
EP3243999B1 true EP3243999B1 (en) 2020-10-14

Family

ID=56940170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17170912.4A Active EP3243999B1 (en) 2016-05-13 2017-05-12 Structure for supporting and moving a sheet of an industrial door

Country Status (4)

Country Link
EP (1) EP3243999B1 (es)
ES (1) ES2841523T3 (es)
IT (1) ITUA20163426A1 (es)
MA (1) MA45736A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE063884T2 (hu) * 2018-04-05 2024-02-28 Seuster Kg Kapu vezetõ elrendezéssel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572767B1 (fr) * 1984-11-05 1988-04-08 Nergeco Sa Dispositif de fixation et de protection de l'element moteur des portes accordeon
FR2696498B1 (fr) * 1992-10-02 1994-11-25 Nergeco Sa Porte de manutention à rideau souple résistant au vent.
GB9522851D0 (en) * 1995-11-08 1996-01-10 Shaw Stanley R Industrial/commercial door
ITTO20030951A1 (it) * 2003-11-27 2004-02-26 Gianus Spa Sistema di automazione di schermi mobili.
PL219724B1 (pl) * 2012-03-05 2015-07-31 Zenon Małkowski Brama przeciwpożarowa ze skrzydłem łamanym

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP3243999A1 (en) 2017-11-15
ITUA20163426A1 (it) 2017-11-13
MA45736A (fr) 2017-11-15
ES2841523T3 (es) 2021-07-08

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