EP0368239B1 - Guide and actuator assembly for gates - Google Patents

Guide and actuator assembly for gates Download PDF

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Publication number
EP0368239B1
EP0368239B1 EP89120591A EP89120591A EP0368239B1 EP 0368239 B1 EP0368239 B1 EP 0368239B1 EP 89120591 A EP89120591 A EP 89120591A EP 89120591 A EP89120591 A EP 89120591A EP 0368239 B1 EP0368239 B1 EP 0368239B1
Authority
EP
European Patent Office
Prior art keywords
guides
bars
stems
gate assembly
assembly 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.)
Expired
Application number
EP89120591A
Other languages
German (de)
French (fr)
Other versions
EP0368239A1 (en
Inventor
Luciano Gamberini
Loris Puccetti
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0368239A1 publication Critical patent/EP0368239A1/en
Application granted granted Critical
Publication of EP0368239B1 publication Critical patent/EP0368239B1/en
Expired legal-status Critical Current

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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
    • E06B9/0607—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 a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0615—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 a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
    • E06B9/063—Bars or rods perpendicular to the closing direction
    • 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
    • E06B9/0607—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 a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0646—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 a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position
    • E06B9/0653—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 a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position stored side by side in the closing plane

Definitions

  • the present invention relates to a gate assembly comprising a plurality of parallel bars in a guide and actuator.
  • Gates are known which are constituted by vertical bars connected to one another by diagonal elements articulated in the shape of a parallelogram: the gate is arranged between an upper sliding guide and a lower sliding guide, and, when opened, they are packed at one side of the opening in which they are mounted.
  • Horizontally sliding gates of this type have the disadvantage of reducing the width of the gap, window or door in which they are mounted and they are furthermore easily attacked at the sliding couplings with the guides; said guides are in fact usually constituted by profiled elements with a U-shaped cross section, inside which the upper and lower ends of the bars simply slide, and it is easy to force said guides and twist off the ends of said bars.
  • the technical aim of the present invention is to obviate the above described disadvantages by providing a gate assembly comprising a plurality of parallel bars in a guide and actuator by means of which doors and windows are closed in an extremely solid and secure manner and which can be actuated in an extremely rapid manner and without physical strain.
  • an object of the present invention is to achieve the above described aim with a simple structure which is relatively easy to execute in practice, safe in use and effective in operation as well as relatively modest in cost.
  • a gate assembly comprising a plurality of parallel bars in a guide and actuator assembly which includes vertical slide guides, threaded stems rotatably mounted inside each of said guides and connected by kinematic coupling means rotatably actuated by a motor unit, a respective female thread being engaged along each of said stems, said bars being connected to one another by diagonal elements articulated in the shape of a parallelogram, characterized in that said bars (3) are guided with their ends into openings provided at said vertical slide guides and only the last lowest bar is rigidly associated with said female thread.
  • the numeral 1 generally indicates the guide and actuator assembly for a gate 2 according to the invention.
  • the gate 2 is of the type constituted by a plurality of parallel bars 3 which are connected to one another by diagonal elements (not illustrated) articulated in the shape of a parallelogram.
  • each of the bars 3 has respective guide skids 4 which have a T-shaped plan cross section.
  • Each vertical guide 5 comprises profiled elements 6a, 6b, joined by L-shaped elements 6c to define a substantially C-shaped cross section having an opening facing the opening of the opposite vertical guide; the skids 4 are loosely fitted to slide in the openings of the guides 5.
  • Profiled elements 6 are fixed by means of screws 7 to the wall all around the gap, window or door to be closed, and, optionally, a shaped profiled element 8, defining a vertical channel 9 for a blind (not illustrated), may be rigidly associated with said profiled elements 6; an outer wooden frame 10 can be fixed to said shaped profiled element 8, and the window or door is provided with the conventional frame for the glass pane toward the inside of the room.
  • a threaded stem 14 is rotatably mounted inside each of said guides 5 by means of upper bearings 11 and lower bearings 12 which are supported by respective ledges 13 fastened with screws inside the profiled elements.
  • a female thread 15 is threaded onto the stem 14 and is welded to an extension 4a of the skid of the last bar 3a (for example the lower one) of the gate, whereas the first bar 3b of the gate is fixed to the upper beam 17 by means of a bolt which blocks a lateral extension 19 of the bar.
  • the bearing 11 is supported by a ledge 13 which is arranged at a distance from upper beam 17 approximately corresponding to the thickness of the packed bars 3, when the gate is open.
  • the threaded stem 14 is connected to a similar threaded stem 14 of the other side of the window (not illustrated) by kinematic coupling means 20 which, in the case illustrated in the figure, are constituted by toothed sprockets 21 keyed to the lower ends of the stems 14 and connected in pairs by chains 22.
  • Said means 20 are contained inside the lower beam 25 of the window frame and are preferably actuated by means of an electric motor-reducer unit or manually with a crank.
  • the kinematic coupling means 20 are constituted by bevel gears which connect the threaded stems to a horizontal shaft contained in the lower beam 23.
  • the bars 3 of the gate 2 are usually constituted by two profiled elements 3c, 3d which are spaced with U-shaped cross sections, the openings whereof are opposite; parallelogram-shaped diagonal elements are mounted therebetween.
  • the female thread 15 is defined in a small block 29 which is rigidly associated with two parallel arms 30 which are fixed by welding, riveting or the like to the profiled elements 3a and 3b.
  • This embodiment allows to avoid the machinings required to fix the skids to the bars and reduces the weight of the movable parts (there is no longer the skids weight).
  • the upright is eliminated and the threaded stem is mounted between the profiled elements 3a and 3b which, if required, are perforated along vertical axes to allow the loose passage of the threaded stem.
  • opening and closure end stop switches or even mechanical stops constituted by unthreaded terminal regions of the stems (with lower stroke limit springs for the re-engagement of the female threads), or clutches or motor-overload releases are provided.
  • the lower bar can be equipped with a key-lock, for locking it to the lower beam, and the motor switch may be activated by a security key.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Barrages (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Description

  • The present invention relates to a gate assembly comprising a plurality of parallel bars in a guide and actuator.
  • Gates are known which are constituted by vertical bars connected to one another by diagonal elements articulated in the shape of a parallelogram: the gate is arranged between an upper sliding guide and a lower sliding guide, and, when opened, they are packed at one side of the opening in which they are mounted.
  • Horizontally sliding gates of this type have the disadvantage of reducing the width of the gap, window or door in which they are mounted and they are furthermore easily attacked at the sliding couplings with the guides; said guides are in fact usually constituted by profiled elements with a U-shaped cross section, inside which the upper and lower ends of the bars simply slide, and it is easy to force said guides and twist off the ends of said bars.
  • The opening and closure of these gates is furthermore extremely inconvenient and requires some physical strain, so that the user often does not close the gate during short absences and ill-intentioned persons often take advantage of these distractions.
  • A mechanism constituted by a plurality of parallel bars, connected to one another by diagonal elements articulated in the shape of a parallelogram, comprising slide vertical guides for the bars and threaded stems rotatably mounted inside such vertical guides, the stems being connected by kinematic coupling means rotatably actuated by a motor unit, is disclosed in the document US-A-1 650 134.
  • Even if such a system resolves some of the drawbacks of the above mentioned mechanisms, it still presents important disadvantages.
  • Since all bars have to be lowered, one by one, at constant intervals, by threadingly engaging their ends with the rotating stems, it is most important for the good functioning of the mechanism that all the bars should always keep an almost perfect horizontal position, which often does not happen in practice, any other positioning thereof causing the blocking of the mechanism.
  • A further complication results from the fact that the bars should be released from their folded position one by one, at constant intervals, by yieldingly supported maintaining means. Any malfunction of such means due to a weakening of the resilient properties of its elements, or worse, due to their breaking, would obviously nut out of use the whole mechanism.
  • The technical aim of the present invention is to obviate the above described disadvantages by providing a gate assembly comprising a plurality of parallel bars in a guide and actuator by means of which doors and windows are closed in an extremely solid and secure manner and which can be actuated in an extremely rapid manner and without physical strain.
  • Within the scope of this technical aim, an object of the present invention is to achieve the above described aim with a simple structure which is relatively easy to execute in practice, safe in use and effective in operation as well as relatively modest in cost.
  • This aim and this object are achieved by a gate assembly comprising a plurality of parallel bars in a guide and actuator assembly which includes vertical slide guides, threaded stems rotatably mounted inside each of said guides and connected by kinematic coupling means rotatably actuated by a motor unit, a respective female thread being engaged along each of said stems, said bars being connected to one another by diagonal elements articulated in the shape of a parallelogram, characterized in that said bars (3) are guided with their ends into openings provided at said vertical slide guides and only the last lowest bar is rigidly associated with said female thread.
  • Further characteristics will become apparent from the detailed description of a preferred but not exclusive embodiment of a gate assembly according to the invention, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
    • figure 1 ia s partially sectional side view of a guide and actuator assembly for gates according to the invention;
    • figure 2 is an enlarged top view of a detail of said assembly;
    • figure 3 is a top view of a detail of an assembly according to a further aspect of the invention.
  • With reference to the figures, the numeral 1 generally indicates the guide and actuator assembly for a gate 2 according to the invention.
  • The gate 2 is of the type constituted by a plurality of parallel bars 3 which are connected to one another by diagonal elements (not illustrated) articulated in the shape of a parallelogram.
  • At their two ends, each of the bars 3 has respective guide skids 4 which have a T-shaped plan cross section.
  • Two vertical slide guides 5 are provided at each side of the gate, of which just the left one is visible in the figure. Each vertical guide 5 comprises profiled elements 6a, 6b, joined by L-shaped elements 6c to define a substantially C-shaped cross section having an opening facing the opening of the opposite vertical guide; the skids 4 are loosely fitted to slide in the openings of the guides 5.
  • Profiled elements 6 are fixed by means of screws 7 to the wall all around the gap, window or door to be closed, and, optionally, a shaped profiled element 8, defining a vertical channel 9 for a blind (not illustrated), may be rigidly associated with said profiled elements 6; an outer wooden frame 10 can be fixed to said shaped profiled element 8, and the window or door is provided with the conventional frame for the glass pane toward the inside of the room.
  • A threaded stem 14 is rotatably mounted inside each of said guides 5 by means of upper bearings 11 and lower bearings 12 which are supported by respective ledges 13 fastened with screws inside the profiled elements.
  • A female thread 15 is threaded onto the stem 14 and is welded to an extension 4a of the skid of the last bar 3a (for example the lower one) of the gate, whereas the first bar 3b of the gate is fixed to the upper beam 17 by means of a bolt which blocks a lateral extension 19 of the bar.
  • The bearing 11 is supported by a ledge 13 which is arranged at a distance from upper beam 17 approximately corresponding to the thickness of the packed bars 3, when the gate is open.
  • The threaded stem 14 is connected to a similar threaded stem 14 of the other side of the window (not illustrated) by kinematic coupling means 20 which, in the case illustrated in the figure, are constituted by toothed sprockets 21 keyed to the lower ends of the stems 14 and connected in pairs by chains 22.
  • Said means 20 are contained inside the lower beam 25 of the window frame and are preferably actuated by means of an electric motor-reducer unit or manually with a crank.
  • According to a further aspect of the invention, not illustrated in the drawings, the kinematic coupling means 20 are constituted by bevel gears which connect the threaded stems to a horizontal shaft contained in the lower beam 23.
  • Still in a further aspect of the invention, illustrated in figure 3, the fact is exploited that the bars 3 of the gate 2 are usually constituted by two profiled elements 3c, 3d which are spaced with U-shaped cross sections, the openings whereof are opposite; parallelogram-shaped diagonal elements are mounted therebetween.
  • In this case, the guides 5, instead of having a C-shaped cross section with slightly closed openings, as in the assembly described above, have a U-shaped open cross section 26, and an upright 27 is fixed at the opening above and below; said upright is optionally made of two parts assembled by means of screws 28 with a T-shaped cross section which has a wing inserted in the space between the profiled elements 3a and 3b and makes it difficult to force the bars out of the guides.
  • The female thread 15 is defined in a small block 29 which is rigidly associated with two parallel arms 30 which are fixed by welding, riveting or the like to the profiled elements 3a and 3b.
  • This embodiment allows to avoid the machinings required to fix the skids to the bars and reduces the weight of the movable parts (there is no longer the skids weight).
  • In a further embodiment, the upright is eliminated and the threaded stem is mounted between the profiled elements 3a and 3b which, if required, are perforated along vertical axes to allow the loose passage of the threaded stem.
  • In order to avoid undue stresses to the motor, opening and closure end stop switches or even mechanical stops constituted by unthreaded terminal regions of the stems (with lower stroke limit springs for the re-engagement of the female threads), or clutches or motor-overload releases are provided.
  • The operation of the assembly according to the invention is apparent: by rotating the threaded stems in one direction or the other, the female threads lower or rise and simultaneously move the terminal bar so that it remains horizontal: said bar progressively moves the others from a lowered condition, by which the gap, window or door is closed to a raised opening position with the bars packed at the top: the coupling of the skids to the guides is not easily attacked since a sort of forcing-proof engagement is configured between the T of the skid and the C of the guide.
  • It is furthermore difficult to lift the lower bar, which is coupled to the threaded stems at its ends.
  • It should be noted that the bulk of the guides, uprights and beams is extremely small and that the actuation of the assembly is very rapid and easy.
  • Naturally the lower bar can be equipped with a key-lock, for locking it to the lower beam, and the motor switch may be activated by a security key.
  • It has thus been observed that the invention achieves the proposed aim and objects.
  • The invention thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept.
  • All the details are furthermore replaceable with other technically equivalent elements.
  • In practice, the materials employed, as well as the shapes and dimensions, may be any according to the requirements without thereby abandoning the scope of the protection of the appended claims.
  • Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.

Claims (6)

1. Gate assembly comprising a plurality of parallel bars (3) in a guide and actuator which includes vertical slide guides (5,26) threaded stems (14) rotatably mounted inside each of said guides and connected by kinematic coupling means (20,22) rotatably actuated by a motor unit, a respective female thread (15) being engaged along each of said stems (14), said bars (3) being connected to one another by diagonal elements articulated in the shape of a parallelogram, characterized in that said bars (3) are guided with their ends into openings provided at said vertical slide guides (5,26) and only the last lowest bar (3a) is rigidly associated with said female thread (15).
2. Gate assembly according to claim 1, characterized in that a first top bar (3b) of said bars is rigidly associated with a fixed frame (17) of said gate (2).
3. Gate assembly according to claim 1, characterized in that said kinematic coupling means (20) comprises sprockets (21), each of said sprocket being keyed to one end of each of said stems (14), said sprockets being connected to one another in pairs by a chain (22).
4. Gate assembly according to claim 1, characterized in that said kinematic coupling means (20) comprises a shaft which is co-planar and orthogonal to said threaded stems and is connected to said stems by means of bevel gears.
5. Gate assembly according to claim 1, characterized in that each of said parallel bars (3) have, at each end thereof, a skid (4) with a substantially T-shaped cross section, said skid being guided in said opening of said guide which have a substantially C-shaped cross section.
6. Gate assembly according to claim 1, characterized in that each of said parallel bars (3) comprises two opposite spaced profiled elements (3c,3d) having a substantially C-shaped cross sections, and in that uprights (27) provided with a T-shaped wing inserted between the profiled elements of said guides (26) are fixed in openings of said guides (26), said guides having a U-shaped cross section.
EP89120591A 1988-11-11 1989-11-07 Guide and actuator assembly for gates Expired EP0368239B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT365888 1988-11-11
IT8803658A IT1225338B (en) 1988-11-11 1988-11-11 GUIDE AND DRIVE GROUP FOR SAFETY SHUTTER

Publications (2)

Publication Number Publication Date
EP0368239A1 EP0368239A1 (en) 1990-05-16
EP0368239B1 true EP0368239B1 (en) 1992-06-03

Family

ID=11111195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120591A Expired EP0368239B1 (en) 1988-11-11 1989-11-07 Guide and actuator assembly for gates

Country Status (5)

Country Link
EP (1) EP0368239B1 (en)
DE (1) DE68901705T2 (en)
ES (1) ES2033508T3 (en)
GR (1) GR3005277T3 (en)
IT (1) IT1225338B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650134A (en) * 1927-11-22 Guabd mechanism
DE247377C (en) *
FR2557187B1 (en) * 1983-12-26 1988-06-10 Fichet Bauche REINFORCEMENT AND LOCKING DEVICE FOR ARTICULATED AND EXTENSIBLE GRIDS
FR2566453B1 (en) * 1984-06-26 1988-04-29 Fichet Bauche EXTENSIBLE GRID FOR THE PROTECTION OF A BAY

Also Published As

Publication number Publication date
IT8803658A0 (en) 1988-11-11
EP0368239A1 (en) 1990-05-16
ES2033508T3 (en) 1993-03-16
GR3005277T3 (en) 1993-05-24
DE68901705D1 (en) 1992-07-09
IT1225338B (en) 1990-11-13
DE68901705T2 (en) 1992-12-17

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