EP4083361A1 - Dispositif pliant pour une porte pliante et mobilier pourvu de porte pliante - Google Patents

Dispositif pliant pour une porte pliante et mobilier pourvu de porte pliante Download PDF

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Publication number
EP4083361A1
EP4083361A1 EP21170978.7A EP21170978A EP4083361A1 EP 4083361 A1 EP4083361 A1 EP 4083361A1 EP 21170978 A EP21170978 A EP 21170978A EP 4083361 A1 EP4083361 A1 EP 4083361A1
Authority
EP
European Patent Office
Prior art keywords
bearing
door
folding
coupling
wing
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.)
Withdrawn
Application number
EP21170978.7A
Other languages
German (de)
English (en)
Inventor
Fabrice BÜHLER
Raffael STUCKI
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.)
Hawa Sliding Solutions AG
Original Assignee
Hawa Sliding Solutions AG
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 Hawa Sliding Solutions AG filed Critical Hawa Sliding Solutions AG
Priority to EP21170978.7A priority Critical patent/EP4083361A1/fr
Publication of EP4083361A1 publication Critical patent/EP4083361A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/1066—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/26—Suspension arrangements for wings for folding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/56—Suspension arrangements for wings with successive different movements
    • E05D15/58—Suspension arrangements for wings with successive different movements with both swinging and sliding movements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/422—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening
    • E05Y2201/426—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets
    • E05Y2900/212—Doors disappearing in pockets in the furniture body

Definitions

  • the invention relates to a folding device for a folding door, in particular a folding sliding door, and a piece of furniture with a folding door, in particular a folding sliding door, which is provided with a folding device.
  • Sliding doors are often used to close off openings in rooms or pieces of furniture, which are moved into a door compartment or into a parking space after the opening has been released, so as not to be a nuisance.
  • the US8336972B2 discloses a piece of furniture with a door compartment in which a displacement device is provided, by means of which the sliding door can be displaced within the door compartment.
  • the displacement device comprises a holding device in the form of a pair of scissors, by means of which a stop profile connected to the sliding door is held in a vertical orientation.
  • the displacement device also includes running rails, along which the stop profile is mounted in a displaceable manner by means of drives and can be pushed into the door compartment with practically no resistance.
  • the US9284761B2 discloses a piece of furniture with a displacement device by means of which a folding door can be displaced into a door compartment.
  • the folding door comprises two door elements, of which the first door element is connected at the front to a carriage that can be moved along a running rail that has two rail sections that are aligned perpendicular to one another and are connected to one another by a curved section, one of which is guided into the door compartment.
  • the second door panel is connected to the back with a stop profile, for example, according to the by a holding device US8336972B2 is held vertically.
  • the folding door is extended from the door compartment and unfolded. In the closed position, the door elements are aligned in a planar manner with respect to one another. In order to open the piece of furniture, the folding door is folded shut again, with the door elements assuming an angle not equal to 180° in an open position and being retracted into the door compartment, preferably aligned parallel to one another.
  • the JP2011162994A discloses a folding device which assists the unfolding of a folding door and is provided with a lever arm which is rotatably attached to a first door panel, is supported by a spring and is provided with a roller at an end piece which abuts the second door panel.
  • the DE202018100262U1 discloses a folding device which assists in the closing of a folding door and is provided with a lever arm which is rotatably attached to a first door panel, supported by a spring and guided with an end piece in a guide mounted on the second door panel.
  • the US2018119470A1 discloses another folding device which includes a pivoted lever arm and which assists in the folding of a folding door.
  • a hinge provided with a spring is also known, by means of which door elements which are connected to one another in an articulated manner are rotated either into the open position or into the closed position after a central position has been exceeded.
  • the hinge is elaborately designed and requires fitting elements that are to be mounted on the upper edges of the door elements.
  • the present invention is therefore based on the object of creating an improved folding device by means of which a folding door can be folded or guided into a closed position or into an open position. Furthermore, a piece of furniture is to be created with a folding door that is equipped with the folding device.
  • the folding device should be simple in construction and easy to assemble. Furthermore, the folding device should be compact with small dimensions and take up little space.
  • the folding device should be able to be modified with little effort, so that the folding device can bring the folding door either from the closed position into an open position or from an open position into the closed position.
  • the folding device should include a locking device which the planar aligned door elements in the holds closed position.
  • the locking of the door elements in the closed position should be canceled by pressing the door elements.
  • the folding device should preferably simultaneously fulfill a hinge function, so that the door elements can be connected to one another in an articulated manner solely by at least two folding devices.
  • the piece of furniture equipped with at least one folding device should be easy to use and should not be subject to any significant restrictions with regard to the interior space.
  • the door elements are to be released from the closed position in a simple manner and automatically moved as far as possible into an open position.
  • the folding device intended for a folding door in particular a folding sliding door, having a first and a second door element which are hinged to one another, comprises a first coupling wing which is connected to the first door element and a second coupling wing which is connected to the second door element is connected to a coupling shaft, through which the two coupling wings are articulated to each other, and with a mechanical energy store which acts on the two coupling wings.
  • the two coupling wings each have a first wing part, which is provided for connection to the associated door element, and a second wing part and a wing shaft, which articulately connects the first and second wing parts that correspond to one another, and that a bearing body is provided , which holds a bearing element for holding the coupling shaft and at least one bearing piston, which is surrounded by a helical spring that serves as an energy store, and which bearing body is articulated by the two coupling wings to a loading carriage, which has a bearing opening for receiving the at least one bearing piston and which is mounted in an axially displaceable manner on the at least one bearing piston.
  • the first door element of the folding door is connected by stop hinges, for example to a structural element such as a side wall or partition of the piece of furniture or to a stop profile that is held in a displaceable manner.
  • Two bearing pistons aligned parallel to one another are preferably held displaceably by the bearing body and give the folding device increased stability.
  • Bearing bushes are preferably held in the bearing openings of the loading carriage, which ensure that the loading carriage is always held in an axially displaceable manner, aligned parallel to the bearing body.
  • the coupling wings are preferably folded up and down symmetrically to one another.
  • the loading carriage is moved back and forth along the bearing piston and the energy store is charged or discharged or the coil springs are tensioned or relaxed.
  • the energy store is charged when the loading carriage travels in the direction of the bearing body.
  • the door elements are transferred into the closed position in which they are aligned in a planar manner and are preferably locked by means of a locking device.
  • the locking device is preferably integrated into the folding device, but can also be mounted externally, e.g.
  • the loading carriage is pushed back by the compressive force exerted by the coil springs and returned to the starting position.
  • the first wing parts and thus the two door elements are rotated against one another and preferably aligned in parallel.
  • the compression springs are held by the bearing pistons between the bearing body and the loading carriage and do not have to be fastened in order to develop the desired effect.
  • the helical springs are designed as tension springs and have one end piece connected to the bearing body and the other end piece connected to the loading carriage, the energy store is charged when the loading carriage travels in the direction away from the bearing body and is discharged again when it travels back in the direction of the bearing body .
  • the energy store is therefore charged after the folding or the parallel alignment of the door elements, which is why the folding door is automatically partially or fully converted into the closed position after moving out of the door compartment the door elements are aligned parallel to each other. In this case, there is no need for locking since the energy store is discharged.
  • the function of the folding device according to the invention can therefore be advantageously changed and adapted to the wishes of the user by a simple modification, by using the helical springs either as compression springs or tension springs.
  • first wing part of each coupling wing is connected to the coupling shaft with at least one first bearing element and to the wing shaft with at least one second bearing element
  • second wing part of each coupling wing is connected to the wing shaft with at least one first bearing element and with at least a second bearing element is connected to a carriage shaft which is provided on the loading carriage separately or jointly for each coupling wing.
  • the bearing body preferably comprises two bearing feet, each holding a bearing piston and delimiting a bearing space through which the coupling shaft passes and in which the first bearing elements of the first wing parts are connected to the coupling shaft. In this way, a compact construction of the folding device is realized.
  • the folding device can be used in pieces of furniture in which separate locking devices are provided. It is preferably provided that the folding device comprises a locking device which can preferably be locked by moving the storage body and the loading carriage together and which can be unlocked again by moving the storage body and the loading carriage together.
  • the bearing body has a closure body which has a closure groove on one or both sides, into which a closure element that is connected to the loading carriage engages when the bearing body and the loading carriage move together.
  • the locking groove preferably runs around a central locking part and is designed in such a way that the associated locking element is guided cyclically around the locking part in the same direction during movements of the loading carriage and engages once in a locking area with each rotation and is released from the locking area again.
  • the folding door of a piece of furniture can advantageously be equipped with one or more folding devices according to the invention.
  • the folding devices can perform the hinge function of the folding door alone or in combination with conventional hinges.
  • the folding device can be provided with a compression spring or a tension spring according to the desired function.
  • a locking device is preferably provided which can be unlocked by pressing on the door elements.
  • the locking device is preferably integrated into the folding device, but can also be mounted externally, e.g.
  • the at least one folding door can be provided with a pulling device according to the invention, by means of which the folding door can be automatically transferred from the closed position into an open position, optionally with the door elements being aligned in parallel.
  • the traction device comprises a first traction device mountable on the first door panel and a second traction device mountable on the second door panel, and a traction cable by which the first and second traction device units are connected to each other.
  • the first pulling device unit has a first pulling device body provided for mounting on the first door element and a tension spring mounted in the first pulling device body, which has a first end piece with a first holding element mounted on a first end of the first pulling device body and which has a second end piece with a first end piece of the traction cable, which is guided via a first deflection element mounted on a second end of the first traction device body to the second traction device unit, which has a second traction device body provided for installation on the second door element, on which a second holding element is mounted at a first end to which the traction cable is connected.
  • a first end piece of a spring bar for example a leaf spring, is mounted on a second end of the second pulling device body, which has an exposed second Has end piece, of which a second deflection element is held, via which the traction cable is guided to the second holding element.
  • the traction device units are mounted horizontally or perpendicularly to the hinge axis of the folding door. So that the traction device units do not collide when the door elements are folded together, they are preferably arranged offset one above the other vertically or parallel to the hinge axis of the folding door.
  • the first pulling device unit is mounted on the first door element in such a way that the first holding element faces the hinge axis of the folding door and the first deflection element faces away from the hinge axis
  • the preferably horizontally aligned second pulling device unit is mounted on the second door element in such a way that the spring rod with the second deflection element faces the hinge axis of the folding door and the second retaining element faces away from the hinge axis, the first retaining element being connected via the tension spring to the tension cable, which is connected via the first deflection element and the second deflection element, such as an eyelet or a pulley , is guided to the second holding element.
  • the door elements are rotated against one another at an accelerated rate.
  • the spring rod if necessary the leaf spring, is first pulled outwards at the front.
  • the force in the pull cable is reduced so that the pull cable is guided by the spring bar against the associated door element.
  • At least one of the deflection elements is preferably a deflection roller which is held by a deflection bearing.
  • the deflection bearing is preferably held by means of a pivot bearing so that it can be rotated upwards or downwards. By tipping the deflection roller downwards or upwards, the traction cable is automatically guided past the first traction device unit at the top or bottom when the door elements are folded together.
  • the first and/or the second holding element is preferably held by a holding carriage which can be displaced and locked along a holding rail.
  • the traction cable can therefore be pretensioned as required, so that on the one hand the force required for planar alignment of the door elements in the closed position is not too high and on the other hand the force to unfold the door elements into the open position is sufficiently high.
  • the traction cable preferably runs parallel thereto and does not exert any torque on the door elements.
  • the door elements are fixed in the closed position and can be secured with simple means.
  • the folding door can now be opened by means of the folding device described or in a simple manner by means of an externally mounted spring, for example a leaf spring or a spiral spring.
  • an externally mounted spring for example a leaf spring or a spiral spring.
  • the pulling device and the folding device can advantageously be combined with one another. Provision can be made for the door elements to be rotated from the closed position into an open position by the pulling device and then converted into a parallel alignment by the folding device. Alternatively, it can be provided that the pulling device is provided for moving the door elements from the closed position into an open position and the folding device is provided for unfolding the door elements aligned parallel to one another.
  • FIG. 1 shows a piece of furniture 1 according to the invention in the form of a cupboard 1 with a first door compartment 10, from which a folding door 11 has been pulled out, and a second door compartment 10, into which a one-piece sliding door 11 has been pushed.
  • the folding door 11 has a first and a second door element 111, 112, which are connected to one another by at least one folding device 2 according to the invention.
  • the folding door 11 is unfolded, so that the door elements 111, 112 are aligned in one plane and cover two-thirds of the cabinet opening 100.
  • the piece of furniture for example a cupboard, has side walls 12, a top panel 14, a bottom panel 15 and partitions 13, which each delimit a door compartment 10 with a side wall 12.
  • the trailing edge of the first door element 111 when the sliding door 11 is extended is connected by stop hinges 55 to a stop profile 5 which, while being vertically aligned, can be displaced within the door compartment 10 .
  • the leading edge of the first door element 111 is connected by at least one folding device 2 according to the invention and optionally door hinges 119 to the trailing edge of the second door element 112, the leading edge of which is connected at the top to a front running gear 73 (see also Figure 3a ).
  • the front drive 73 is guided in a rail 93, the one along the front of the cabinet 1 of 1 has running front section 932, which are connected on both sides by curve sections 933 with door compartment sections 931, which extend into the door compartments 10.
  • the metal stop profile 5 is provided with a cross-sectional profile that allows the mentioned hinges 55 and bearing devices 412, 421 and drives 71, 72 to be installed in a simple manner and preferably to be held in a form-fitting manner.
  • the stop profile 5 is connected to a holding device 4 in the form of a scissors cross, which holds the stop profile 5 vertically aligned and displaceable.
  • the scissor cross 4 comprises a first scissor arm 41 and a second scissor arm 42 which are rotatably connected to one another by a scissor joint 43 .
  • the ends of the scissor arms 41 , 42 facing the stop profile 5 are connected to the bearing devices 412 , 421 on the stop profile 5 .
  • the ends of the scissor arms 41, 42 that are remote from the stop profile 5 are connected to bearing devices 411, 422 that are stationarily mounted in the cabinet 1.
  • the lower ends of the scissor arms 41, 42 are rotatably, but not slidably, supported by the lower bearing devices 412, 422.
  • the upper ends of the scissor arms 41, 42 are supported by the upper bearing devices 411, 421 in a rotatable and vertically displaceable manner.
  • the upper ends of the scissor arms 41, 42 can move accordingly, with the stop profile 5 always being held in a vertical orientation.
  • the upper end piece of the stop profile 5 is connected to an upper guide mechanism 71 which is slidably mounted on an upper guide rail 21 .
  • the lower end piece of the stop profile 5 is connected to a lower guide mechanism 72, which is slidably mounted on a lower guide rail.
  • the guide rails 21, 22 are aligned parallel to one another and perpendicular to the stop profile 5 and are connected, for example, directly or indirectly to the top panel 14, the bottom panel 15, a side wall 12 and/or an intermediate wall 13.
  • drive devices 96, 98 can be provided, by means of which the stop profile 5 and the sliding door 11 connected to it can be correspondingly displaced.
  • damping devices 95 which are mounted inside the door compartment 10, for example on a rear wall, partition wall or side wall of the cabinet 1 and which catch the sliding door 11 in an end position.
  • Figure 3a shows a part of the displacement device 9 of FIG 2 with a view of the entrance of the first door compartment 10, with the first door element 111, which is connected to the trailing edge inside the door compartment 10 with the stop profile 5, and the second door element 112, which is connected to the front drive with the leading edge by a drive hinge 77 73 is connected, which is held within a curved section 933 of the running rail 93.
  • the movements of the trailing edge of the first door element 111 and the leading edge of the second door element 112 when entering and exiting the door compartment 10 are shown with two arrow lines M11, M12.
  • Figure 3b shows the front drive 73 of FIG Figure 3a with a segment of the running rail 93, which has a rail foot 938 and a guide channel 939.
  • the front running gear 73 has a running gear body 730 which holds a roller 731 that has fallen onto the rail foot 938 and two guide rollers 732 guided in the guide channel 939 .
  • a coupling element or a coupling bolt 733 is mounted in the carriage body 730, by means of which a coupling arm 734 is held and optionally adjustable in height.
  • the linkage arm 734 supports a deck hinge 77 mounted on the leading edge of the second door panel 112. As shown in FIG.
  • the door elements 111, 112 are equipped with the folding device 2 and a pulling device 3, and are connected to one another by an optional door hinge 119.
  • the folding device 2 and the pulling device 3 complement each other advantageously, but can also be used independently of one another.
  • the folding door 11 depending on the configuration of the folding device 2 from the closed position 1 in an open position, for example 2 or 3 or from the open position of eg from 2 or 3 into the closed position of 1 be transferred.
  • the folding door 11 can be moved from the closed position of 1 into an open position (see e.g 3 ) are transferred.
  • the traction device 3 comprises a first traction device unit 31, which is mounted on the first door element 111, and a second traction device unit 32, which is parallel to the hinge axis x of the folding door 11 in relation to the first traction device unit 31 and displaced downwards on the second door element 112.
  • the first hitch unit 31 has an elongated first hitch body 310 bolted to the first door panel 111 .
  • a first holding element or a first holding pin 311 is held at an end of the first pulling device body 310 which faces the hinge axis x.
  • a first end piece 3121 of a tension spring 312 is suspended in the first retaining bolt 311 , the second end piece 3122 of which is connected to the tension cable 33 , which is guided to the second tension device unit 32 via a first deflection element 313 .
  • the pull rope is in 4 and in figure 5 shown in phantom.
  • the first deflection element 313 is held at an end of the first traction device body 310 which faces away from the hinge axis x.
  • the first deflection element 313 is a deflection roller which is rotatably held by a deflection bearing 3130 .
  • the deflection bearing 3130 is held by a rotary bearing 3131 in such a way that it can tilt downwards or can be rotated downwards by the traction cable 33 during the folding process.
  • the second hitch assembly 32 includes an elongated second hitch body 320 that bolts to the second door panel 112 is.
  • a spring rod in the form of a leaf spring 324 protrudes from the pulling device body 23, which is connected to a second deflection element 325 on the front near the hinge axis x.
  • the rear end of the leaf spring 324 is held in the hitch body 320 by a jig 3249 .
  • the second deflection element 325 forms an eyelet through which the traction cable 33 is guided to a second holding element 321 which is held at an end of the second traction device unit 32 remote from the hinge axis x.
  • the second holding element 321, for example a bolt is preferably held by a holding carriage 322, which can be displaced and fixed along a carriage track 323. By moving the holding carriage 322, the tension spring 312 can be pretensioned as required.
  • the two traction device units 31, 32 are rotated apart, as a result of which the tension spring 312 is tensioned.
  • the traction cable 33 is aligned parallel to the door elements 111, 112, which is why, despite the high spring force of the tensioned tension spring 312, only a very small torque is exerted on the door elements 111, 112.
  • the folding door 11 can therefore be fixed in the closed position in a simple manner.
  • a spring element is preferably provided, which can be tensioned by pressure and subsequently pushes the door elements 111, 112 out at the edges facing one another so far that this is caused by the pull cable 33 Torque now for folding the door elements 111, 112 is sufficient.
  • this initial ejection function is performed by a folding device 2, which is provided with a mechanical energy store that can be charged and locked by pressing the folding door 11 and unlocked again by pressing the folding door 11 again, as described below .
  • Each of the hinges 119 and each of the folding devices 2 can have its own coupling shaft 81 .
  • the hinges 119 and/or the folding devices 2, on the other hand, can have a common coupling shaft.
  • figure 5 shows the folding door 11 of 4 in the position of Figure 3a with the partially shown first door element 111 and the second door element 112, which are aligned almost parallel to each other and between which the folding device 2 and the pulling device 3 are arranged.
  • the first pulling device unit 31 lies above the second pulling device unit 32, as a result of which the two door elements 111, 112 can be aligned parallel to one another.
  • the first deflection roller 313 has tilted downwards.
  • the second deflection element 325 can also be a roller, which is held by means of a deflection bearing 3250, which is optionally connected to the front end of the leaf spring 324 by a pivot bearing 3251.
  • the front end piece of the leaf spring 324 is designed in the shape of a fork, so that a roller can be held by means of a bearing shaft which is connected to the fork ends of the leaf spring 324 .
  • Figure 6a shows the folding device 2 of FIG 4 and figure 5 in exploded view.
  • FIGS. 7a and 7b show the folding device 2 in different states with the assembled device parts 21, 22A, 22B, 23 connected to one another by a coupling shaft 81, two vane shafts 82A, 82B and two carriage shafts 83A, 83B.
  • the folding device 2 comprises a first coupling wing 22A, which can be connected to the first door element 111, and a second coupling wing 22B, which can be connected to the second door element 112, and a coupling shaft 81, by which the two coupling wings 22A, 22B are connected to one another in an articulated manner .
  • a mechanical energy storage in the configuration of two coil springs 27 is provided on the two Coupling wings 22A, 22B can act.
  • the folding device 2 is symmetrical, which is why the description of one side of the folding device 2 with the first coupling wing 22A also applies to the other side of the folding device 2 with the second coupling wing 22B. In the exploded view of Figure 6a however, all parts of the device are shown individually, which is why the description of the folding device according to Figure 7a and Figure 7b also on the Figure 6a is referenced.
  • the two coupling wings 22A, 22B each have a first wing part 221A; 221B for connection to the associated first or second door panel 111; 112 is provided, and a second wing portion 222A; 222B and a vane shaft 82A, 82B having the first and second vane parts 221A, 222A; 221B, 222B hinged together.
  • the first wing parts 221A; 221B are provided with openings 2210 through which mounting screws can be guided, by means of which the folding device 2 is connected to the two door elements 111, 112.
  • a bearing body 21 is also provided, which has bearing elements 211 for holding the coupling shaft 81 and holds two bearing pistons 26, which are each surrounded by a coil spring 27, which serve as an energy store.
  • the bearing body 21 is articulated to a loading carriage 23 on both sides by the two coupling wings 22A, 22B.
  • the plate-shaped loading carriage 23 has bearing openings 230 for receiving the bearing pistons 26 .
  • Bearing bushes 25 are inserted into the bearing openings 230 and ensure precise guidance of the bearing pistons 26 or precise alignment of the loading carriage 23 .
  • the loading carriage 23 is therefore mounted on the bearing piston 26 so that it can be displaced axially against the bearing body 21 .
  • the first wing part 221A; 221B of each coupling vane 22A, 22B is connected to the coupling shaft 81 by two first bearing elements 2211 and to the vane shaft 82A, 82B by a second bearing element 2212.
  • the second wing part 222A; 222B of each coupling wing 22A, 22B is connected to the wing shaft 82A, 82B by two first bearing elements 2221 and to a carriage shaft 83A, 83B by two second bearing elements 2222.
  • the carriage shafts 83A, 83B are supported separately from each other in bearing members 231A, 231B on opposite sides of the loading carriage 23. As shown in FIG.
  • Figure 6a and Figure 7b also show that the bearing elements 211 of the bearing body 21 are designed as bearing feet, each of which holds one of the bearing pistons 26 and delimits a bearing space 210 through which the coupling shaft 81 passes and in which the overlapping first bearing elements 2211 of the first wing parts 221A; 221B and connected to the coupling shaft 81.
  • the folding device 2 comprises a locking device which can be locked by moving the bearing body 21 and the loading carriage 23 together and which can be unlocked again by moving the bearing body 21 and the loading carriage 23 together.
  • the folding device 2 is preferably locked when the energy storage device is charged, in order to prevent it from being discharged and the door elements 111, 112 from moving undesirably.
  • the locking device comprises a locking body 212 which is part of the bearing body 21 and faces the loading carriage 23 .
  • the closure body 212 has one or both sides (see Figure 6b ) a locking groove 6A, 6B, in each of which a locking element 28A; 28B, which is connected to the loading carriage 23, engages when the bearing body 21 and the loading carriage 23 are moved together.
  • the two locking grooves 6A, 6B are formed as mirror images, so that the two locking elements 28A; 28B are always coaxially aligned and parallel to each other.
  • Each locking groove 6A, 6B encloses a central locking part 66 which has a detent depression 661 .
  • the locking groove 6A, 6B and the locking part 66 are designed in such a way that the associated locking element 28A; 28B when the loading carriage 23 moves within the locking groove 6A, 6B cyclically in the same direction around the locking part 66 and engages once in the detent depression 661 with each revolution and is released again from the detent depression 661 when the loading carriage 23 moves further relative to the bearing body 21 becomes.
  • the flanks of the locking groove 6A, 6B and, if applicable, the shape of the locking element 28A; 28B are selected in such a way that the closure element 28A; 28B retreating in the locking groove 6A, 6B is always prevented.
  • the locking groove 6A, 6B has an entry area 61 into which the locking element 28A; 28B can enter and exit again.
  • the entrance region 61 is adjoined by a lead region 62, which opens into a catch region 63 that runs inclined upwards, in which the closure element 28A; 28B retreat and into the detent depression 661 can occur, in which the closure element 28A; 28B is held positively on the one hand by the force of the coil springs 27 and on the other hand by the shape of the closure part 66 or the detent recess 661 until a further mutual displacement of the loading carriage 23 relative to the bearing body 21 follows.
  • the closure element 28A; 28B is raised from the detent depression 661 and guided further along the locking groove 6A, 6B through a return area 64 into the entry area 61 of the locking groove 6A, 6B, where it is released again from the locking body 212.
  • closure elements 28A, 28B are mutually aligned end pieces of a closure rod 28 which, in this preferred embodiment, is at least approximately rectangular in shape and is mounted on the loading carriage 23 by means of a retaining clip 238 and assembly screws 239 .
  • the locking bar 28 has a center piece 28C which is held at the rear of the loading carriage 23 by the retaining bracket 238 such that the side arms are directed through slots in the loading carriage 23 forwards against the bearing body 21 (see the dot-dash line).
  • Figure 7a shows the folding device 2 of FIG Figure 6a with a view of the loading carriage 23 in a state with door elements 111, 112 aligned parallel to one another according to figure 5 (Left); with door elements 111, 112 developed against one another according to FIG 4 (middle) and with planar aligned door elements 111, 112 according to FIG 1 (to the right).
  • Figure 7b shows the folding device 2 in the states of FIG Figure 7a with a view of the bearing body 21 in a state with planar aligned door elements 111, 112 according to 1 (left), in accordance with door elements 111, 112 unwound against one another 4 (centre) and with door elements 111, 112 aligned parallel to one another according to FIG figure 5 (to the right).
  • the first end piece of each coil spring 27 rests on the bearing body 21 and the second end piece of each coil spring 27 on the loading carriage 23.
  • the helical springs 27 are designed as compression springs, the end pieces of the helical springs 27 are automatically pressed against the bearing body 21 and the loading carriage 23 .
  • the helical springs 27 are provided as tension springs, the end pieces of the helical springs 27 are firmly connected to the bearing body 21 on the one hand and to the loading carriage 23 on the other hand.
  • the last turn of the helical springs 27 is firmly clamped by a fixing bracket which is screwed to the bearing body 21 or the loading carriage 23 .
  • the loading carriage 23 is permanently pushed away, with the folding device 2 rotating the door elements 111, 112 in opposite directions after they have been unlocked. Once this state as it is in figure 5 is shown is reached, the energy store or the coil springs 27 are discharged and must be reloaded by manual mutual rotation of the door elements 111, 112.
  • the loading carriage 23 is permanently pulled against the bearing body 21, with the folding device 2 rotating the door elements 111, 112 apart after they have been released.
  • the coil springs 27 are therefore loaded or tensioned, and discharged with a rotation to the closed position of 1 (please refer Figure 7b , the folding device 2) shown on the left is reached.
  • the energy store or the coil springs 27 are discharged and must be reloaded by manual mutual rotation of the door elements 111, 112.
  • the prestressing of the helical springs 27 can be adjusted in preferred configurations of the folding device 2 .
  • the bearing pistons 26 are preferably provided with a thread in the area of the bearing body 21 which holds an adjusting nut which can be turned against the associated helical spring 27 .
  • the figures 8a to 8f show the folding device 2 of FIG Figure 6a without the coupling wings 22A, 22B in different locking positions, in which the locking elements 28A, 28B the locking groove 6A; 6B go through.
  • the coil springs 27 are designed as compression springs.
EP21170978.7A 2021-04-28 2021-04-28 Dispositif pliant pour une porte pliante et mobilier pourvu de porte pliante Withdrawn EP4083361A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21170978.7A EP4083361A1 (fr) 2021-04-28 2021-04-28 Dispositif pliant pour une porte pliante et mobilier pourvu de porte pliante

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Application Number Priority Date Filing Date Title
EP21170978.7A EP4083361A1 (fr) 2021-04-28 2021-04-28 Dispositif pliant pour une porte pliante et mobilier pourvu de porte pliante

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EP4083361A1 true EP4083361A1 (fr) 2022-11-02

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846868A (en) 1972-09-19 1974-11-12 Acme General Corp Hinge for door with hollow stile
JP2011162994A (ja) 2010-02-09 2011-08-25 Daiken Corp 折り戸
US8336972B2 (en) 2009-04-28 2012-12-25 Hawa Ag Displacement device for pivotally held separation elements and article of furniture
US9284761B2 (en) 2012-12-05 2016-03-15 Hawa Ag Displacement device for slidable and turnable separation elements and functional entity
DE202018100262U1 (de) 2017-01-25 2018-01-23 Julius Blum Gmbh Ausstoßvorrichtung für eine Falttür oder Falt-Schiebe-Tür
US20180119470A1 (en) 2015-06-29 2018-05-03 Julius Blum Gmbh Ejection device for a folding door or folding-sliding door
US20200063482A1 (en) * 2017-05-11 2020-02-27 Julius Blum Gmbh Ejecting device for a folding door

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846868A (en) 1972-09-19 1974-11-12 Acme General Corp Hinge for door with hollow stile
US8336972B2 (en) 2009-04-28 2012-12-25 Hawa Ag Displacement device for pivotally held separation elements and article of furniture
JP2011162994A (ja) 2010-02-09 2011-08-25 Daiken Corp 折り戸
US9284761B2 (en) 2012-12-05 2016-03-15 Hawa Ag Displacement device for slidable and turnable separation elements and functional entity
US20180119470A1 (en) 2015-06-29 2018-05-03 Julius Blum Gmbh Ejection device for a folding door or folding-sliding door
DE202018100262U1 (de) 2017-01-25 2018-01-23 Julius Blum Gmbh Ausstoßvorrichtung für eine Falttür oder Falt-Schiebe-Tür
US20200063482A1 (en) * 2017-05-11 2020-02-27 Julius Blum Gmbh Ejecting device for a folding door

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