EP3409874B1 - Station for assembling venetian blinds - Google Patents

Station for assembling venetian blinds Download PDF

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Publication number
EP3409874B1
EP3409874B1 EP18172932.8A EP18172932A EP3409874B1 EP 3409874 B1 EP3409874 B1 EP 3409874B1 EP 18172932 A EP18172932 A EP 18172932A EP 3409874 B1 EP3409874 B1 EP 3409874B1
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EP
European Patent Office
Prior art keywords
assembling station
insertion axis
slat
cable
station 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
EP18172932.8A
Other languages
German (de)
English (en)
French (fr)
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EP3409874A1 (en
Inventor
Sergio Dallan
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.)
Dallan SpA
Original Assignee
Dallan SpA
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.)
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Publication date
Application filed by Dallan SpA filed Critical Dallan SpA
Priority to SI201830055T priority Critical patent/SI3409874T1/sl
Priority to PL18172932T priority patent/PL3409874T3/pl
Publication of EP3409874A1 publication Critical patent/EP3409874A1/en
Application granted granted Critical
Publication of EP3409874B1 publication Critical patent/EP3409874B1/en
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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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/266—Devices or accessories for making or mounting lamellar blinds or parts thereof

Definitions

  • the object of the present invention is an assembling station of Venetian blinds with support half-ladders.
  • Venetian blinds consist of a plurality of slats, arranged parallel to each other and held in position by means of cord support structures, which are essentially of two types.
  • a first type of structure is called a "complete ladder", that is, consisting of two parallel ribs (arranged in the direction of the height of the blind) and by a plurality of crosspieces connecting them at regular distances.
  • Each crosspiece is associated to a slat, in support (if the crosspiece is single) or in insertion (if the crosspiece is multiple).
  • a second type of structure is called "separate ladders" or "half-ladder”, that is, it consists of two cords separated from each other and each provided with a plurality of cord eyelets, distributed at regular distances along the single cord.
  • the support cords are positioned in pairs on opposite sides of the slats, generally transversely aligned.
  • the cords are associated to the slats at the eyelets by means of hooks fixed to the side edges of the slats themselves.
  • the slats L which may have any cross-section, for example in the shape of C, Z or S, must have folded edges T (as shown in Figure 1 ) so as to constitute a reinforced area capable of rigidly supporting a hook.
  • the hooks G can be of many types, but all characterized in that the eyelet is blocked on the hook and not directly on the slat.
  • a very common type of hook is shown in Figure 2 and consists of a U-shaped element, which defines the anchoring portion of the hook to the slat, and an open ring R, which extends from the U-shaped element in an opposite position with respect to the two free ends of the U and at which the eyelet is inserted. The open ring is then closed after the eyelet is inserted.
  • Venetian blinds with support half-ladders are carried out in automated production lines that comprise specific automated assembling stations, in which the individual slats are associated to the support half-ladders and, thus associated, progressively superimposed on one another to form the Venetian blind.
  • Assembling stations which, in addition to inserting the eyelet and closing the ring, also provide for the prior attachment of the hooks to the slats, as illustrated in the European patent EP 2653646 B1 in the name of the same applicant.
  • an assembling station A comprises a plurality of stacking units B distributed along a main axis X, along which the slats are progressively arranged.
  • Each stacking unit A supports a pair of opposing half-ladders in height and is adapted to associate said pair of half-ladders to the single slats which are progressively inserted in the assembling station, by inserting the eyelets and closing the rings, and possibly also by attaching two hooks at a time on the two opposite sides of the single slat.
  • the single slat is simultaneously engaged by all the stacking units B. After being associated to the different pairs of half-ladders, the single slat will be raised upwards, so as to allow the insertion of a new slat and continue to make the Venetian blind.
  • the individual stacking units B are slidably associated with a longitudinal support bar C which develops parallel to the aforesaid main axis X.
  • a longitudinal support bar C which develops parallel to the aforesaid main axis X.
  • a critical assembling step is the insertion of the slats in the assembling station. Because of its weight, the single lamella slat tends to bend between one unit and the other, with the risk that the tip end of the slat itself, lowering with respect to the insertion plane, jams along the insertion path.
  • each stacking unit is provided with a guiding slide D at its inlet.
  • a guiding slide D at its inlet.
  • assembling stations are provided with intermediate supports E for the slat, arranged between one stacking unit and the other.
  • Each support defines a support and sliding plane for the slat, preventing it from bending excessively into the space between one unit and the other.
  • intermediate supports E are slidably associated with the same longitudinal support bar C to which the stacking units B are associated, so that their position can be adapted to the position of the stacking units.
  • these intermediate supports E although fully performing their function, have some limits.
  • a first limit is related to the fact that the intermediate supports are arranged on the same axis of movement of the stacking units and can therefore hinder their freedom of positioning.
  • the stacking units are generally moved in an automated manner by means of a rack, so as to ensure a synchronized and precise positioning thereof; differently, the intermediate supports can only be moved manually, as their precise positioning along the support bar is not necessary. Therefore, during the repositioning of the stacking units, it may be necessary to remove them beforehand. This complicates the operation of the assembling station, extending dead times.
  • a second limit is linked to the size of the aforementioned intermediate supports, which in some cases may be excessive.
  • the object of the present invention is to eliminate in whole or in part the drawbacks of the prior art cited above by providing an assembling station of Venetian blinds with support half-ladders, which allows preventing jamming of the slats during the insertion step without affecting the operation of the assembling station.
  • a further object of the present invention is to provide an assembling station of Venetian blinds with support half-ladders which is easier to manage than similar known assembling stations.
  • a further object of the present invention is to provide an assembling station of Venetian blinds with support half-ladders which is simple and cost-effective to be realized.
  • reference numeral 1 designates as a whole an assembling station of Venetian blinds with support half-ladder according to the invention.
  • the assembling station 1 of Venetian blinds with support half-ladder comprises a plurality of stacking units 10 of slats on support half-ladders.
  • Such stacking units 10 are aligned with each other along an insertion axis X of the slats in the assembling station 1 and are slidably associated with a shared support structure 2 which extends parallel to said insertion axis X.
  • the aforesaid shared support structure 2 consists of a bar which extends parallel to the insertion axis X.
  • the assembling station 1 comprises motorised means for moving one or more of said stacking units 10 along said shared support structure 2 parallel to the insertion axis X.
  • the stacking units 10 can be repositioned along such a support structure 2 adapting its position according to the length of the slats (i.e. the length of the blind to be produced) and/or to the pitch required between a pair of half-ladders and the other.
  • the assembling station 1 can be provided with means for moving the single slat along the insertion axis X.
  • said moving means of the single slat consist of a pair of opposing towing rollers 3 and 4.
  • the assembling station 1 may be adapted to carry out, in addition to insertion of the eyelets of the half-ladders in the open rings of the hooks and the subsequent closing of the rings, also the prior attachment of the hooks to the slats.
  • functionally the aforementioned operations for attaching hooks, inserting eyelet and closing ring are carried out in each of the aforementioned stacking units 10.
  • each of the stacking units 10 is made according to the European patent EP 2653646 B1 in the name of the same applicant, which is herein incorporated as a reference.
  • the assembling station 1 according to the invention may be adapted to perform only the insertion of the eyelets and the subsequent closure of the rings themselves.
  • functionally the aforementioned operations for eyelet insertion and ring closing are carried out in each of the aforementioned stacking units 10.
  • each of said units 10 comprises:
  • the positioning means 13 may consist of a guiding slide 13a (placed at the inlet of the stacking unit 10) and, alternatively or in combination, of a guiding chamfer 13b (obtained directly at the inlet of the working site 11).
  • the aforesaid working site 11 also acts as a sliding seat of the slat L in an insertion step of the slat along the aforesaid insertion axis X inside the assembling station 1.
  • the assembling station 1 according to the invention can be placed in line with a slat manufacturing machine, or it can be placed out of line to avoid slowing down the faster slat manufacturing process.
  • stacking units 10 usable in an assembling station of Venetian blinds with support half-ladders are known to a man skilled in the art and will therefore not be described herein in greater detail.
  • the assembling station 1 comprises a sliding guide 20 for the slat L.
  • This sliding guide passes through the assembling station 1 along the aforesaid insertion axis X and defines a support for the slat L in the empty spaces V between one stacking unit 10 and the other.
  • the aforesaid sliding guide 20 is held suspended between two opposite ends 1', 1" of the assembling station 1 parallel to the insertion axis X.
  • said sliding guide 20 is arranged at a height such as to ensure the entrance of the slat in the stacking units 10 without however interfering with the action of the positioning means 13 of the slat L provided in the stacking units 10.
  • the sliding guide 20 has the function of accompanying the slat in input to each stacking unit, introducing the slat itself in the positioning means 13 and preventing the tip end of the slat itself, by lowering under its own weight, from jamming along the insertion path.
  • the function of correctly positioning the slat L in the working site 11 of each stacking unit 10, instead, is left to the positioning means 13.
  • the stacking unit 10 of the assembling station is slidably associated with the aforementioned sliding guide 20 parallel to the insertion axis X.
  • the aforementioned sliding guide 20 does not in any way affect the freedom of adjustment of the position of the stacking units 10 along the aforesaid insertion axis X.
  • the sliding guide 20 can therefore support the single slat L in the empty spaces V between one stacking unit and the other (avoiding jamming of the slats during the insertion step) and, due to the fact that it is held suspended between the two opposite ends 1', 1" of the assembling station 1 and the fact that the stacking units 10 of the assembling station are slidably associated with the aforementioned sliding guide 20 parallel to the insertion axis X, the sliding guide 20 does not affect on the operation of the assembling station, i.e. the stacking units 10.
  • the repositioning of the stacking units can be carried out without the presence of the sliding guide constituting any constraint or limit. Unlike the prior art solutions, it is therefore not necessary to remove the sliding guide. This simplifies the operation of the assembling station, reducing dead times.
  • the sliding guide 20 being suspended through the assembling station and therefore without intermediate support elements, leaves all the space of the shared support structure free along the insertion axis X for the movement of the stacking units 10. Therefore, in no case, even in the production of blinds with half-ladders arranged at a particularly reduced pitch, it is necessary to remove the sliding guide to free up space available to the stacking units.
  • the assembling station 1 is therefore easier to manage than similar assembling stations of a known type.
  • said sliding guide 20 consists of at least one cable which extends parallel to said insertion axis X through the assembling station 1.
  • the realization of the sliding guide with one or more cables allows combining simplicity, lightness and low production cost.
  • the aforesaid sliding guide 10 consists of a pair of cables 21, 22 which extend parallel to the insertion axis X through the assembling station 1.
  • the presence of two cables, instead of one, allows realizing a more stable support for the slat L during insertion, reducing the risk that the slat L rotates around the insertion axis X.
  • the two cables 21, 22 of the aforesaid pair of cables are mutually spaced transversally with respect to the insertion axis X.
  • the distance between the two cables is less than the width of the slat L.
  • the transverse distance between the two cables 21 and 22 can be adjusted according to the size and shape of the slats which from time to time are processed in the assembling station 1.
  • the aforesaid at least one cable or each cable of the aforesaid pair of cables 21, 22 is made of metal, preferably steel. The realization of the aforesaid cables with steel allows combining resistance to simplicity, lightness and cost-effectiveness of production.
  • each stacking unit 10 comprises a crossing opening 12 for the aforesaid at least one cable or for each cable of the pair of cables 21, 22.
  • a crossing opening 12 extends axially parallel to the insertion axis X.
  • said crossing opening 12 consists of a groove axially open on at least one side.
  • This configuration is advantageous since it allows an easier assembling of the cables in the stacking units 10.
  • this configuration facilitates the replacement of the cables 21, 22 and possibly the replacement of the parts of the single stacking unit 10 affected by the crossing of the cables 21, 22.
  • the aforesaid at least one cable or each cable 21, 22 of the pair of cables is attached at the two opposite ends 21', 21" and 22', 22" thereof to two opposite anchoring structures 31, 32.
  • Each anchoring structure 31, 32 is arranged at one of the two opposite longitudinal ends 1', 1" of the assembling station 1.
  • the single anchoring structures may be mechanically supported by the shared support structure 2 of the assembling station, as shown in Figure 8 , or it may be independent of such a shared support structure 2, as shown in Figure 10 .
  • the position of said two anchoring structures 31, 32 can be adjustable in the height direction with respect to the insertion axis X to adjust the positioning of said cable with respect to the stacking units 10 and to the relative positioning means 13.
  • the position of these two anchoring structures 31, 32 can be adjustable in a transversal direction with respect to the insertion axis X to adjust the positioning of said cable according to the size and/or shape of the slats which from time to time are processed in the assembling station 1.
  • the assembling station 1 comprises means 30 for tightening the aforesaid at least one cable or the pair of cables 21, 22 along a direction parallel to the insertion axis X.
  • the assembling station 1 comprises means 30 for tightening the aforesaid at least one cable or the pair of cables 21, 22 along a direction parallel to the insertion axis X.
  • the tightening means 30 may consist of elastic means, axially aligned with the single cable 21, 22.
  • the tightening means 30 are arranged at one of the aforesaid two opposite anchoring structures 31, 32.
  • the assembling station of Venetian blinds with support half-ladders allows preventing the jamming of the slats during the insertion step without affecting the operation of the assembling station.
  • the assembling station 1 according to the invention is also simpler to manage than similar assembling stations of a known type.
  • the assembling station 1 according to the invention in particular when the sliding guide consists of one or more cables, is simple and cost-effective to be realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
EP18172932.8A 2017-05-31 2018-05-17 Station for assembling venetian blinds Active EP3409874B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201830055T SI3409874T1 (sl) 2017-05-31 2018-05-17 Postaja za montažo žaluzij
PL18172932T PL3409874T3 (pl) 2017-05-31 2018-05-17 Stanowisko do składania żaluzji weneckich

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000059669A IT201700059669A1 (it) 2017-05-31 2017-05-31 Stazione di assemblaggio di tende a veneziana con semiscalette di sostegno

Publications (2)

Publication Number Publication Date
EP3409874A1 EP3409874A1 (en) 2018-12-05
EP3409874B1 true EP3409874B1 (en) 2020-03-25

Family

ID=60294078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18172932.8A Active EP3409874B1 (en) 2017-05-31 2018-05-17 Station for assembling venetian blinds

Country Status (6)

Country Link
EP (1) EP3409874B1 (pt)
ES (1) ES2796557T3 (pt)
IT (1) IT201700059669A1 (pt)
PL (1) PL3409874T3 (pt)
PT (1) PT3409874T (pt)
SI (1) SI3409874T1 (pt)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349730A (en) * 1993-03-09 1994-09-27 Hunter Douglas Inc. Mehtod and apparatus for assembling blinds
ITPD20120061A1 (it) * 2012-03-02 2013-09-03 Dallan Spa Unità di impilatura di lamelle su semiscalette di sostegno per la produzione di tende veneziane e metodo di applicazione combinata di ganci e di semiscalette ad una lamella

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
IT201700059669A1 (it) 2018-12-01
PT3409874T (pt) 2020-06-16
PL3409874T3 (pl) 2020-09-21
EP3409874A1 (en) 2018-12-05
SI3409874T1 (sl) 2020-09-30
ES2796557T3 (es) 2020-11-27

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