EP4026980B1 - Assembly for coupling the shaft of a roller blind to its housing - Google Patents

Assembly for coupling the shaft of a roller blind to its housing Download PDF

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Publication number
EP4026980B1
EP4026980B1 EP21217929.5A EP21217929A EP4026980B1 EP 4026980 B1 EP4026980 B1 EP 4026980B1 EP 21217929 A EP21217929 A EP 21217929A EP 4026980 B1 EP4026980 B1 EP 4026980B1
Authority
EP
European Patent Office
Prior art keywords
ring
assembly
sleeve
arm
movable sleeve
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
EP21217929.5A
Other languages
German (de)
French (fr)
Other versions
EP4026980A1 (en
Inventor
Michal Smierciak
Andrzej Cieslak
Boguslaw Kasinski
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.)
Fakro PP Sp zoo
Original Assignee
Fakro PP Sp zoo
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Publication date
Application filed by Fakro PP Sp zoo filed Critical Fakro PP Sp zoo
Publication of EP4026980A1 publication Critical patent/EP4026980A1/en
Application granted granted Critical
Publication of EP4026980B1 publication Critical patent/EP4026980B1/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
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/50—Bearings specially adapted therefor
    • 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
    • E06B9/40—Roller blinds
    • E06B2009/407—Telescopic roller

Definitions

  • the subject-matter of the invention comprises a coupling assembly for coupling the shaft of a moving blind to its housing.
  • a building opening shading device comprising a winding shaft with a curtain, suspended on two lateral end faces of a box housing using at least one support piece was disclosed in the description of patent EP2918768B1 .
  • the aforementioned support piece is designed for longitudinal movement with respect to the winding shaft, so that it can assume an assembly position or an working position. In the assembly position of the shaft, the support piece at least partially enters it.
  • the device also comprises a securing device for the purpose of securing the shaft against undesirable movement when it is in the working position wherein the support piece is supported on the surface of an end side of the box.
  • the securing device comprises a stop face part of the box housing end face. The stop face is pointing to the outside of the shaft and comprises a counter stop pin protruding towards the shaft.
  • the counter stop pin is in a securing position, where it is located at the height of the stop surface of one support piece sleeve, which prevents or at least limits the support piece from accidentally pushing into the shaft.
  • the stop face together with the counter stop pin is moved so that it is outside of the support piece sleeve stop, which may be telescopically moved to the assembly position where it is inside the shaft.
  • a solution comprising an assembly coupling the moving blind shaft on the moving blind housing, entailing locking the winding shaft movable sleeve with respect to an intermediate sleeve has also been disclosed.
  • the movable sleeve comprises ridges on its circumference and a movable ring which travels along the longitudinal axis of that sleeve, and once aligned with the ridges they press flush against its outer surface allowing the movable sleeve to be pushed into the intermediate sleeve. This operation is carried out during assembly of such a winding shaft inside the shutter box, when the winding shaft has to be shortened in order to seat it on fixed plugs of pre-determined spacing.
  • Document FR 2 934 307 A1 discloses an assembly for coupling the shaft of a moving blind to its housing according to the preamble of claim 1.
  • variable length of the shaft is particularly important for a flush-mounted shutter during its assembly, and particularly during maintenance works, where the assembly cavity for the box and the shaft is of a certain size limiting assembly space.
  • the variable length of the shaft is achieved through the use of the coupling assembly according to claim 1.
  • the essence of the invention comprises an assembly for coupling the shaft of a moving blind to its housing, made out of a movable sleeve and an intermediate sleeve which move relative to each other so that the movable sleeve is at least partially inside the intermediate sleeve and the coupling assembly is in its working position when axial movement of the movable sleeve inside the intermediate sleeve is locked and in an assembly position, when axial movement of the movable sleeve inside the intermediate sleeve is unlocked, wherein a ring is seated on the movable sleeve with at least one arm locking axial movement of the movable sleeve inside the intermediate sleeve in the working position of the coupling assembly where the ring arm is resting on the stop face of the intermediate sleeve and the intermediate sleeve has at least one longitudinal notch for the ring arm, when the coupling assembly is in the assembly position, wherein transition of the assembly from one position
  • the ring arm has one free end and one end permanently attached to the ring, so that the ring turning around the movable sleeve causes the free end of the arm to move around the movable sleeve from the working position to the assembly position.
  • stop faces of the intermediate sleeve for the arm in the coupling assembly working position are on its outside and number no less than the number of ring arms, and the longitudinal notch for the ring arm in the assembly position of the coupling assembly is located between the stop faces.
  • the free end of the ring arm has a foot.
  • the foot of the free end of at least one arm has a rib designed to align in a groove.
  • a flange locking the longitudinal movement of the ring with respect to the movable sleeve.
  • an elastic element in the form of a spring.
  • Box 5 of flush-mounted shutter is seated in a rectangular building opening with shutter guide rails on its side walls.
  • Rotary shaft 6 is mounted in box 5 housing onto which the shutter blind material is wound.
  • Shaft 6 has two holes, where one constitutes an outlet for shutter drive 7 and the other an inlet for the coupling assembly.
  • the coupling assembly facilitates assembly of shutter shaft 6 in box 5 housing.
  • the coupling assembly can assume two opposite positions: working and assembly. In the assembly position, axial movement of the movable sleeve 1 inside the intermediate sleeve 2 is unlocked, so that movable sleeve 1 partially enters intermediate sleeve 2 when a user wants to insert or remove shaft 6 into the box housing.
  • Spring 4 is located between the sleeves, and, once the force causing movable sleeve 1 to enter intermediate sleeve 2 is removed, it forces movable sleeve 1 to return to its starting position. Whereas the working position of the coupling assembly is achieved when axial movement of movable sleeve 1 in intermediate sleeve 2 is locked. Locking sleeve axial movement is achieved via ring 3 seated on movable sleeve 1 which has flange 13 preventing ring 3 moving along movable sleeve 1.
  • Ring 3 has at least one arm 31 locking the axial movement of movable sleeve 1 in intermediate sleeve 2, and the said arm 31 with its foot 311 in the working position is resting on stop face 21 of intermediate sleeve 2 and intermediate sleeve 2 has at least longitudinal notch 22 for ring 3 arm 31, when the coupling assembly is in the assembly position.
  • the said stop faces 21 of the intermediate sleeve are on its outside and number no less than the number of ring 3 arms, and longitudinal notch 22 for ring 3 arm 31 is located between stop faces 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Description

  • The subject-matter of the invention comprises a coupling assembly for coupling the shaft of a moving blind to its housing.
  • A building opening shading device comprising a winding shaft with a curtain, suspended on two lateral end faces of a box housing using at least one support piece was disclosed in the description of patent EP2918768B1 . The aforementioned support piece is designed for longitudinal movement with respect to the winding shaft, so that it can assume an assembly position or an working position. In the assembly position of the shaft, the support piece at least partially enters it. The device also comprises a securing device for the purpose of securing the shaft against undesirable movement when it is in the working position wherein the support piece is supported on the surface of an end side of the box. The securing device comprises a stop face part of the box housing end face. The stop face is pointing to the outside of the shaft and comprises a counter stop pin protruding towards the shaft. The counter stop pin is in a securing position, where it is located at the height of the stop surface of one support piece sleeve, which prevents or at least limits the support piece from accidentally pushing into the shaft. In order to unlock the securing device, the stop face together with the counter stop pin is moved so that it is outside of the support piece sleeve stop, which may be telescopically moved to the assembly position where it is inside the shaft.
  • A solution comprising an assembly coupling the moving blind shaft on the moving blind housing, entailing locking the winding shaft movable sleeve with respect to an intermediate sleeve has also been disclosed. The movable sleeve comprises ridges on its circumference and a movable ring which travels along the longitudinal axis of that sleeve, and once aligned with the ridges they press flush against its outer surface allowing the movable sleeve to be pushed into the intermediate sleeve. This operation is carried out during assembly of such a winding shaft inside the shutter box, when the winding shaft has to be shortened in order to seat it on fixed plugs of pre-determined spacing. Document FR 2 934 307 A1 discloses an assembly for coupling the shaft of a moving blind to its housing according to the preamble of claim 1.
  • The use of a moving blind shaft of variable length is particularly important for a flush-mounted shutter during its assembly, and particularly during maintenance works, where the assembly cavity for the box and the shaft is of a certain size limiting assembly space. The variable length of the shaft is achieved through the use of the coupling assembly according to claim 1.
  • One of the problems seen in inventions disclosed to date is the unwanted and uncontrolled movement of elements comprising the flush-mounted shutter shaft, during transport for example, which can cause damage to the movable blind shutter. Introduction of an assembly coupling the shaft of a moving blind to its housing according to claim 1 eliminates this problem by securing the movable sleeve against uncontrolled movements into and out of the inside of an intermediate sleeve seated in the moving blind shaft tube.
  • The essence of the invention comprises an assembly for coupling the shaft of a moving blind to its housing, made out of a movable sleeve and an intermediate sleeve which move relative to each other so that the movable sleeve is at least partially inside the intermediate sleeve and the coupling assembly is in its working position when axial movement of the movable sleeve inside the intermediate sleeve is locked and in an assembly position, when axial movement of the movable sleeve inside the intermediate sleeve is unlocked, wherein a ring is seated on the movable sleeve with at least one arm locking axial movement of the movable sleeve inside the intermediate sleeve in the working position of the coupling assembly where the ring arm is resting on the stop face of the intermediate sleeve and the intermediate sleeve has at least one longitudinal notch for the ring arm, when the coupling assembly is in the assembly position, wherein transition of the assembly from one position to the other takes place by revolving the ring around the movable sleeve so that the free end of the ring arm either rests on the stop face or enters the longitudinal notch.
  • Preferably the ring arm has one free end and one end permanently attached to the ring, so that the ring turning around the movable sleeve causes the free end of the arm to move around the movable sleeve from the working position to the assembly position.
  • Preferably there are no less crosswise ridges on the outer surface of the movable sleeve than the number of ring arms, with a pilot groove for the ring arm in between them.
  • Preferably the stop faces of the intermediate sleeve for the arm in the coupling assembly working position are on its outside and number no less than the number of ring arms, and the longitudinal notch for the ring arm in the assembly position of the coupling assembly is located between the stop faces.
  • Preferably the free end of the ring arm has a foot.
  • Preferably the foot of the free end of at least one arm has a rib designed to align in a groove.
  • Preferably on the movable sleeve circumference there is a flange locking the longitudinal movement of the ring with respect to the movable sleeve.
  • Preferably between the movable sleeve and the intermediate sleeve there is an elastic element in the form of a spring.
  • The illustration depicts the invention, with given figures showing the following:
    • Fig. 1 exploded view of the coupling assembly,
    • Fig. 2 spatial view of the intermediate sleeve,
    • Fig. 3 spatial view of the movable sleeve,
    • Fig. 4 spatial view of the ring and arms,
    • Fig. 5 longitudinal section of the coupling assembly,
    • Fig. 6 spatial view of the coupling assembly,
    • Fig. 7 longitudinal section of the winding shaft with the coupling assembly seated in a shutter box.
  • Box 5 of flush-mounted shutter is seated in a rectangular building opening with shutter guide rails on its side walls. Rotary shaft 6 is mounted in box 5 housing onto which the shutter blind material is wound. Shaft 6 has two holes, where one constitutes an outlet for shutter drive 7 and the other an inlet for the coupling assembly. The coupling assembly facilitates assembly of shutter shaft 6 in box 5 housing. The coupling assembly can assume two opposite positions: working and assembly. In the assembly position, axial movement of the movable sleeve 1 inside the intermediate sleeve 2 is unlocked, so that movable sleeve 1 partially enters intermediate sleeve 2 when a user wants to insert or remove shaft 6 into the box housing. Spring 4 is located between the sleeves, and, once the force causing movable sleeve 1 to enter intermediate sleeve 2 is removed, it forces movable sleeve 1 to return to its starting position. Whereas the working position of the coupling assembly is achieved when axial movement of movable sleeve 1 in intermediate sleeve 2 is locked. Locking sleeve axial movement is achieved via ring 3 seated on movable sleeve 1 which has flange 13 preventing ring 3 moving along movable sleeve 1. Ring 3 has at least one arm 31 locking the axial movement of movable sleeve 1 in intermediate sleeve 2, and the said arm 31 with its foot 311 in the working position is resting on stop face 21 of intermediate sleeve 2 and intermediate sleeve 2 has at least longitudinal notch 22 for ring 3 arm 31, when the coupling assembly is in the assembly position. The said stop faces 21 of the intermediate sleeve are on its outside and number no less than the number of ring 3 arms, and longitudinal notch 22 for ring 3 arm 31 is located between stop faces 21. Transition of the coupling assembly from one position to the other takes place by ring 3 revolving around the movable sleeve so that the free end of ring arm 31 rests on stop face 21 or enters longitudinal notch 22. Ring 3 on movable sleeve 1 assumes its position on account of grooves 12 between crosswise ridges 11 on the outer surface of movable sleeve 1 which number no less than the number of ring arms 31. To that end foot 311 of the free ring arm end has rib 312 designed to enter groove 12.

Claims (8)

  1. Assembly for coupling the shaft of a moving blind to its housing, made out of a movable sleeve (1) and an intermediate sleeve (2) which move relative to each other so that the movable sleeve (1) is at least partially inside the intermediate sleeve (2) and the coupling assembly is in its working position when axial movement of the movable (1) sleeve inside the intermediate sleeve (2) is locked and in an assembly position, when axial movement of the movable sleeve (1) inside the intermediate sleeve (2) is unlocked, wherein the assembly further comprises a ring (3) which is seated on the movable sleeve (11), wherein the ring (3) comprises at least one arm (31) locking axial movement of the movable sleeve (1) inside the intermediate sleeve (2) in the working position of the coupling assembly, characterized in that in said working position the ring (3) arm (31) is resting on a stop face (21) of the intermediate sleeve (2) and the intermediate sleeve (2) has at least one longitudinal notch (22) for the ring (3) arm (31), when the coupling assembly is in the assembly position, wherein transition of the assembly from one position to the other takes place by revolving the ring (3) around the movable sleeve (1) so that the free end of the ring arm (31) either rests on the stop face (21) or enters the longitudinal notch (22).
  2. Assembly according to claim 1, characterized in that the arm (31) has one free end and one end permanently attached to the ring, so that the ring turning around the movable sleeve causes the free end of the arm (31) to move around the movable sleeve (1) from the working position to the assembly position.
  3. Assembly according to claim 1 or claim 2, characterized in that there are no less crosswise ridges (11) on the outer surface of the movable sleeve (1) than the number of ring arms (31), with a pilot groove (12) for the ring arm (31) in between them.
  4. Assembly according to claim 1 or claim 2, characterized in that the stop faces (21) of the intermediate sleeve (2) for the arm (31) in the coupling assembly working position are on its outside and their number is no less than the number of the ring (3) arms, and the longitudinal notch (22) for the ring arm (31) in the assembly position of the coupling assembly is located between the stop faces (21).
  5. Assembly according to claim 1 or claim 2, characterized in that the free end of the ring arm has a foot (311).
  6. Assembly according to claim 5, characterized in that the foot (311) of the free end of at least one ring arm has a rib (312) designed to align in a groove (12).
  7. Assembly according to claim 1, characterized in that on the movable sleeve (1) circumference there is a flange (13) locking the longitudinal movement of the ring (3) with respect to the movable sleeve (2).
  8. Assembly according to claim 1, characterized in that between the movable sleeve (1) and the intermediate sleeve (2) there is an elastic element (4) in the form of a spring.
EP21217929.5A 2021-01-12 2021-12-28 Assembly for coupling the shaft of a roller blind to its housing Active EP4026980B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL436651A PL244187B1 (en) 2021-01-12 2021-01-12 Assembly for coupling the shaft of movable curtain to its body

Publications (2)

Publication Number Publication Date
EP4026980A1 EP4026980A1 (en) 2022-07-13
EP4026980B1 true EP4026980B1 (en) 2024-01-10

Family

ID=79024646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21217929.5A Active EP4026980B1 (en) 2021-01-12 2021-12-28 Assembly for coupling the shaft of a roller blind to its housing

Country Status (2)

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EP (1) EP4026980B1 (en)
PL (1) PL244187B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936106B1 (en) * 2006-12-14 2016-03-16 Hunter Douglas Industries B.V. Mounting system for a roller blind
DK2260169T3 (en) * 2008-03-03 2018-05-07 Hunter Douglas Ind Switzerland Adjustable blinds
FR2934307B1 (en) * 2008-07-28 2012-10-19 Soprofen INSTALLATION OF ROLLER SHUTTER AXLE WINDING TELESCOPIC APRON
DE102014003499A1 (en) 2014-03-14 2015-09-17 Roma Kg Building opening shading device

Also Published As

Publication number Publication date
PL244187B1 (en) 2023-12-11
EP4026980A1 (en) 2022-07-13
PL436651A1 (en) 2022-07-18

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