EP4665939A1

EP4665939A1 - Method for assembling a spiral track arrangement of a spiral door operator system, spiral track arrangement and corresponding spiral door operator system

Info

Publication number: EP4665939A1
Application number: EP24703755.9A
Authority: EP
Inventors: Friedhelm Frede
Original assignee: Assa Abloy Entrance Systems AB
Current assignee: Assa Abloy Entrance Systems AB
Priority date: 2023-02-17
Filing date: 2024-02-06
Publication date: 2025-12-24
Also published as: CN120712398A; WO2024170334A1

Abstract

ASSA ABLOY Entrance systems AB has developed a guiding arrangement method for assembling of a spiral track arrangement (TA) for a spiral door operator system (S) comprising: a first and second frame section (12, 14) at opposite sides (I, II) of an opening (O); a door (20) arranged to be moved between an open and closed position; a first and second protruding track member (100) running along said first and second frame sections (12, 14), wherein said protruding track members (100) comprise a straight track (110) and a spiral track (120), frame sections (12, 14) comprising a plate element (300) for said spiral tracks (120). Said spiral door operator system further 10 comprises a first and second set of guiding members (200) distributed along and attached to said door (20) and configured to guidingly engage with said first and second protruding track members (100). The method comprises the steps of: providing (S1) a spiral slot (S300) onto said plate element (300); and, applying (S2) a track (120) to said spiral slot (S300) so as to connect said spiral track (120) to said plate element (300). The present invention also relates to a spiral track arrangement (TA), and a spiral door operator system (S).

Description

METHOD FOR ASSEMBLING A SPIRAL TRACK ARRANGEMENT OF A SPIRAL DOOR OPERATOR SYSTEM, SPIRAL

TRACK ARRANGEMENT AND CORRESPONDING SPIRAL DOOR OPERATOR SYSTEM

TECHNICAL FIELD

The present invention relates to a method for assembling a spiral track arrangement for a door operator system. The present invention also relates to a spiral track arrangement for a door operator system. The present invention also relates to a door operator system comprising such a spiral track arrangement.

BACKGROUND

In order to facilitate high speed closing of opening, door operator systems with doors being configured to be operated at high speed are provided. One of the most used principals to operate a rigid exterior high-speed door of a door operator system is a spiral door system. Such a door comprises a plurality of interconnected sections so as to allow change of direction of the door. Such a door may e.g. comprise a curtain made of a plurality of rigid slats that are connected by rigid hinges. The door curtain moves on both sides in vertical side tracks.

Over lintel the track change to a spiral contour so that the movement of the door changes from a vertical movement into a spiral movement. To open the door the door curtain is lifted or pulled on both sides upwards into the spiral track and downwards out of the spiral track into the closed position. The door operator system comprises a guiding arrangement comprising rollers arranged in connection to the hinges of the door sections, said rollers being configured to run in a U-tracks of said side tracks. By thus utilizing roller, low friction of the guiding arrangement is facilitated and thereby high-speed movement of the door. The width of the inside U-track needs to be wider than the roller diameter too ensures that the rollers do not clamp. On the other hand, the gap between the U-track and the roller should not be too wide to reduce noise.

Such spiral-U-tracks are expensive to produce. Usually the spiral U-track is made of two aluminium profiles that are bent into the spiral shape and fixed on side head plates. This is time consuming and expensive.

Moreover, rollers are subjected to a lot of wear. Depending on if the roller touches one or the other of the inner U-track surfaces the roller turns right hand or left hand. If the door curtain shakes or works under changing pressure/wind direction the rollers switch, touching the surfaces of the U-track and have to abruptly change turning direction.

Once the door sections are moving in the overhead spiral track, the rollers run in the upper tracks on the inner U-track-surface and on the lower track on the outer U-track-surface, creating wear and noises. This means many rollers switch a few times their rotating direction. It is important that the rollers do run on a defined lane in the U-track and that the door sections are not allowed to move more than a few millimetres to right hand or left hand.

DE 20 2018 101 842 U1 discloses a guiding arrangement comprising a protruding spiral track and guide member comprising roller pairs, said guide members being arranged in connection to hinges between the door sections of the door, wherein the rollers of the respective roller pairs are configured to run on opposite sides of the protruding track. The protruding track comprising the spiral track is made of an aluminum extrusion, which is expensive to produce, to bend and to fix on the side head plates.

There is thus a need to provide a spiral track arrangement for a door operator system which facilitates easy and quick manufacturing/assembling, which is cost-efficient, and facilitates providing high speed door movement, low noise operation, and low wear during guiding of the door. OBJECT OF THE INVENTION

An object of the present invention is to provide a method for assembling a spiral track arrangement for a door operator system, which facilitates easy and cost-efficient assembling, and which facilitates providing high speed door movement, low noise during operation, low wear.

Another object of the present invention is to provide a spiral track arrangement for a door operator system, which is cost-efficient, and which facilitates providing high speed door movement, low noise during operation, low wear.

Another object of the present invention is to provide a door operator system comprising such a spiral track arrangement.

SUMMARY OF THE INVENTION

These and other objects, apparent from the following description, are achieved by a method for assembling a spiral track arrangement for a door operator system, a spiral track arrangement for a door operator system, and a door operator system, as set out in the appended independent claims. Preferred embodiments of the guiding member are defined in appended dependent claims.

Specifically, an object of the invention is achieved by a method for assembling of a spiral track for a spiral door operator system. The spiral door operator system is configured for opening and closing an opening. The spiral door operator system comprises a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side. The spiral door operator system comprises a door arranged to be moved between an open position and a closed position, the door being movably arranged in connection to the door frame; wherein the door comprises a plurality of interconnected sections so as to allow spiral movement of the door. The spiral door operator system comprises a first protruding track member configured to run along said first frame section, and a second protruding track member configured to run along said second frame section, wherein the first and second protruding track members comprise a straight track for straight guiding of said door, in connection to said opening, and a spiral track for spiral guiding of said door, said first and second frame sections comprising a plate element for said spiral tracks. The spiral door operator system comprises a first set of guiding members distributed along and attached to said door and configured to giudingly engage with said first protruding track member; and a second set of guiding members distributed along and attached to said door and configured to giudingly engage with said second protruding track member. The method comprises the steps of: providing a spiral slot onto said plate element; and, applying a track to said spiral slot so that said track is connected to said plate element as a spiral track.

Hereby a spiral track may be quickly and easily connected to the respective plate element so that a spiral track arrangement may be easily and cost- efficiently assembled for providing said spiral door operator system. Such an assembled spiral track arrangement facilitates guiding by means of a set of guiding members thus connected to said door and guidingly engaged to protruding track members comprising spiral tracks of said spiral track arrangement. Thus, hereby easy and cost-efficient assembling of spiral track arrangement of spiral door operator system is provided, which facilitates providing high speed door movement, low noise during operation and low wear.

The track which is applied to the spiral slot so as to connect said spiral track to said plate element may also be denoted strip. The track, which is formed to a spiral track either prior to applying it to said slot or in connection to applying it to said track, has a longitudinal extension, a transversal extension orthogonal to said longitudinal extension, and a thickness which has an extension essentially orthogonal to its longitudinal and transversal extension. The transversal extension of the track corresponds to the protruding extension when connected to the plate element. Said spiral track has opposite side, wherein the thickness of said spiral track corresponds to the shortest distance between said opposite sides. The thickness of said spiral track is slightly smaller than the width of said spiral slot so as to allow said track to be fit within said spiral slot. The final spiral shape is obtained when said spiral track has been applied to said spiral slot, e.g. through pushing and bending. The track or strip from which said spiral track is provided is made from a stiff and rigid material having flexible properties so that it can be bent into said spiral shape without breaking. The material of said track may be steel, stainless steel, plastic, wood or the like. Preferably said track is a sheet metal strip. The thickness of the spiral track may depend on material properties. According to an aspect the thickness of the spiral track may be in the range of 1 -4 mm, preferably in the range of 1 .5-3 mm, and the spiral slot may be approximately 0.2-1 .5 preferably 0.3-1 mm wider. Said plate element may be made of any suitable material, preferably a sheet metal material. Said spiral slot provided on said plate element may be obtained by laser-cutting, plasma-cutting, water beam cutting or stamping, preferably stamping.

According to an embodiment the method further comprises the step of, prior to connecting said track to said spiral slot, bending a track into a spiral shape so as to provide said spirally shaped spiral track. By thus pre-bending a track, i.e. a strip, into a spiral shape so that a spiral track adapted to be applied to said spiral slot of said plate element is provided, quick, easy and efficient assembly for providing said spiral track arrangement is facilitated.

According to an embodiment of the method, the step of providing a spiral slot to said plate element comprises stamping said plate element. Hereby quick, easy and efficient provision of said spiral slot to said plate element is facilitated.

According to an embodiment of the method, the plate element of said first and second frame sections has a front side and an opposite rear side, wherein the step of providing a spiral slot to said plate element comprises providing said spiral slot through said plate element so that said spiral slot provides an opening from the front side to the rear side of said plate element. By thus providing said spiral slot through said plate element from the front end to and through the rear end, quick, easy and efficient connection of said spiral track to said plate element is facilitated.

According to an embodiment of the method, the step of applying the track to said spiral slot so that said track is connected to said plate element as a spiral track comprises attaching a reinforcement arrangement on the rear side and applying said spiral track to said spiral slot on the front side of said plate element so that a connection portion of said spiral track is allowed through to the rear side of said spiral slot and connects with said reinforcement arrangement and a guiding portion of said spiral track protrudes from said front side. Hereby robust and stable connection of said spiral track to said plate element is easily and efficiently obtained.

According to an embodiment of the method, the step of connecting a portion of said spiral track with said reinforcement arrangement comprises introducing portions of said, from the rear side of said plate element protruding connection portion of said spiral track into cuts of said reinforcement arrangement facing said rear side. Hereby robust and stable connection of said spiral track to said plate element is easily and efficiently obtained.

According to an embodiment the method further comprises, prior to applying the track to said spiral slot, providing a set of openings distributed around a connection portion said spiral track on the side of said spiral track; wherein the step of applying said track to said spiral slot is performed on the front side of said plate element so that said connection portion of said spiral track with said set of openings is allowed through to the rear side of said spiral slot, the method further comprising the step of applying position holding members to openings of said set of openings so as to facilitate holding said spiral track in position at said plate element. Hereby robust and stable connection of said spiral track to said plate element is easily and efficiently obtained.

According to an embodiment of the method, the spiral track is made of a sheet metal strip. Hereby is facilitated, easy, quick and efficient provision of a spiral track for a spiral track arrangement which is robust and which facilitates high speed door movement.

Specifically, an object of the invention is achieved by a spiral track arrangement of for a spiral door operator system. The spiral door operator system is configured for opening and closing an opening. The spiral door operator system comprises a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side. The spiral door operator system comprises a door arranged to be moved between an open position and a closed position, the door being movably arranged in connection to the door frame; wherein the door comprises a plurality of interconnected sections so as to allow spiral movement of the door. The spiral door operator system comprises a first protruding track member configured to run along said first frame section, and a second protruding track member configured to run along said second frame section, wherein the first and second protruding track members comprise a straight track for straight guiding of said door, in connection to said opening, and a spiral track for spiral guiding of said door, said first and second frame sections comprising a plate element for said spiral tracks. The spiral door operator system comprises a first set of guiding members distributed along and attached to said door and configured to giudingly engage with said first protruding track member; and a second set of guiding members distributed along and attached to said door and configured to giudingly engage with said second protruding track member. Said spiral track arrangement comprises: said spiral tracks; a plate element of said first frame section and a plate element of said second frame section. The respective plate element is provided with a spiral slot, wherein said spiral tracks are connected to said plate elements via application of said spiral tracks to said spiral slots.

According to an embodiment of the spiral track arrangement, said spiral tracks are provided by pre-bent strips bent into a spiral shape.

According to an embodiment of the spiral track arrangement, the spiral slot of the respective plate element stamped slots provided through stamping of said plate elements.

According to an embodiment of the spiral track arrangement, the plate element of said first and second frame sections has a front side and an opposite rear side, said plate elements, when assembled, being configured to be arranged so that the front side of the plate element of the first frame section and the front side of the plate element of the second frame section face towards each other, wherein said spiral slot is a slot provided through said plate element so that said spiral slot provides an opening from the front side to the rear side of said plate element.

According to an embodiment, the spiral track arrangement further comprises a reinforcement arrangement attached on the rear side of said plate elements, wherein a connection portion of said, at said spiral slot provided, spiral track, projecting outwardly from said rear side of said plate element, is connected to said reinforcement arrangement, wherein a remaining guiding portion of said spiral track is configured to protrude from said front side for engagement with said gliding members.

According to an embodiment of the spiral track arrangement, parts of the, from the rear side of said plate element protruding connection portion of said spiral track are configured to be closely received within cuts of said at least one reinforcement arrangement facing said rear side of said plate element.

According to an embodiment of the spiral track arrangement, said spiral tracks comprise a set of openings distributed on the side of around said from the rear side of said plate element protruding connection portion of said spiral tracks, said spiral track arrangement further comprising a set of position holding members applied to openings of said set of openings so as to facilitate holding said spiral track in position at said plate element.

According to an embodiment of the spiral track arrangement, said spiral track is made of a sheet metal strip.

The spiral track arrangement according to the present disclosure has the advantages according to the corresponding method as set out herein.

A spiral door operator system. The spiral door operator system is configured for opening and closing an opening. The spiral door operator system comprises a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side. The spiral door operator system comprises a door arranged to be moved between an open position and a closed position, the door being movably arranged in connection to the door frame; wherein the door comprises a plurality of interconnected sections so as to allow spiral movement of the door. The spiral door operator system comprises a first protruding track member configured to run along said first frame section, and a second protruding track member configured to run along said second frame section, wherein the first and second protruding track members comprise a straight track for straight guiding of said door, in connection to said opening, and a spiral track for spiral guiding of said door, said first and second frame sections comprising a plate element for said spiral tracks. The spiral door operator system comprises a first set of guiding members distributed along and attached to said door and configured to giudingly engage with said first protruding track member; and a second set of guiding members distributed along and attached to said door and configured to giudingly engage with said second protruding track member. Said spiral door operator system comprises spiral track arrangement as set out herein. According to an embodiment of the spiral door operator system, said sets of guiding members comprises one or more sliding members configured to at least partly surround and slidingly engage with said protruding track member and/or one or more slide-roller members having a sliding element and an opposite roller member and being configured to at least partly surround said protruding track member so that said sliding element slidingly engages with one side and said roller member roll ingly engages with an opposite side of said protruding track member, and/or one or more double roller members having opposite rollers arranged so that one roller roll ingly engages with one side and the opposite roller rollingly engages with an opposite side of said protruding track member.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present disclosure reference is made to the following detailed description when read in conjunction with the accompanying drawings, wherein like reference characters refer to like parts throughout the several views, and in which:

Fig. 1 schematically illustrates a front view of a spiral door operator system with a guiding arrangement configured to guide a door, the door being in a closed position, according to an embodiment of the present disclosure;

Fig. 2a schematically illustrates a side view of a part of the spiral door operator system in fig. 1 , with the door in the closed position, according to an embodiment of the present disclosure;

Fig. 2b schematically illustrates a side view of the part of the spiral door operator in fig. 2a with the door in the open position, according to an embodiment of the present disclosure;

Fig. 3 schematically illustrates a side view of a portion of a guiding arrangement with guiding members connected to a door, each guiding member having a sliding element and an opposite roller member, said guiding members being guidingly engaged to spiral track of a protruding track member, the spiral track being part of a spiral track arrangement, according to an embodiment of the present disclosure;

Fig. 4 schematically illustrates a perspective view of a plate element of a spiral track arrangement, said plate element having a spiral slot, according to an embodiment of the present disclosure;

Fig. 5a schematically illustrates a perspective view of a spiral track of a spiral track arrangement, according to an embodiment of the present disclosure;

Fig. 5b schematically illustrates a perspective view of a portion of a spiral track, e.g. the spiral track in fig. 5a, of a spiral track arrangement, according to an embodiment of the present disclosure;

Fig. 6a schematically illustrates a perspective view of a spiral track arrangement, viewed from the front side of the plate element in fig. 4, with the spiral track in fig. 5a arranged in connection to the spiral slot of the plate element, wherein a guiding portion of said spiral track is protruding outwardly from said front side, according to an embodiment of the present disclosure;

Fig. 6b schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 6a, according to an embodiment of the present disclosure;

Fig. 7 schematically illustrates a perspective view of the spiral track arrangement in fig. 6a, viewed from the rear side of the plate element, wherein a connection portion of said spiral track is protruding outwardly from said rear side, according to an embodiment of the present disclosure;

Fig. 8 schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 6a, viewed from the rear side of the plate element, according to an embodiment of the present disclosure; Fig. 9a schematically illustrates a perspective view of the spiral track arrangement in fig. 6a, viewed from the rear side of the plate element, said spiral track arrangement comprising a reinforcement arrangement attached on said rear side for connecting said spiral track to said plate element, according to an embodiment of the present disclosure;

Fig. 9b schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 9a, according to an embodiment of the present disclosure;

Fig. 10a schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 7, said spiral track arrangement comprising a position holding member for holding said spiral track in position at said plate element, according to an embodiment of the present disclosure;

Fig. 10b schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 7, said spiral track arrangement comprising a position holding member for holding said spiral track in position at said plate element, according to an embodiment of the present disclosure;

Fig. 11 schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 7, said spiral track arrangement comprising a position holding member for holding said spiral track in position at said plate element, according to an embodiment of the present disclosure;

Fig. 12 schematically illustrates a flowchart of a method for assembling a spiral track arrangement for a spiral door operator system, according to an embodiment of the present disclosure; and,

Fig. 13 schematically illustrates a flowchart of a method for assembling a spiral track arrangement for a spiral door operator system, according to an embodiment of the present disclosure. DETAILED DESCRIPTION

Embodiments of the invention will now be described with reference to the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments and aspects set forth herein; rather, these embodiments and aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The terminology used in the detailed description of the particular embodiments/aspects illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like numbers refer to like elements.

The door operator system according to the present disclosure is a door operator system having a door comprising a plurality of horizontal and interconnected sections arranged to be connected to the door frame of the door operator system. The door operator system according to the present disclosure is according to an aspect a door operator system where the door, in the closed position is arranged with a substantially straight extension along the opening, e.g. vertical, horizontal or with a certain angle, and when moved to the open position is subjected to a spiral direction change so that the door, in the closed position is spirally assembled. The door operator system according to the present disclosure is according to an aspect a door operator system where the door, in the closed position is arranged substantially vertical, and in the open position is spirally assembled.

The door according to the present disclosure may be any suitable door such as an industrial door.

Fig. 1 schematically illustrates a front view of a spiral door operator system S for opening and closing an opening 0, according to an aspect of the present disclosure. The spiral door operator system S is arranged to be installed in said opening 0, which, according to an aspect of the present disclosure may be defined by a wall and a ground/floor.

The spiral door operator system I comprises a door frame 10. Said door frame 10 comprises a first frame section 12 at a first side I of the opening 0 and a second frame section 14 at a second side II of the opening 0 opposite the first side I.

The spiral door operator system I further comprises a door 20 arranged to be moved between an open position and closed position. The door 20 is configured to be movably arranged in connection to the door frame 10.

Fig. 2a schematically illustrates a side view of a part of the spiral door operator system S in fig. 1 , with the door 20 in the closed position, according to an embodiment of the present disclosure; and, fig. 2b schematically illustrates a side view of the part of the spiral door operator in fig. 2a with the door in the open position, according to an embodiment of the present disclosure.

Said first frame section 12 comprises a first frame section portion 12-1 arranged for straight, here vertical, movement of the door 20, and a second frame section portion 12-2 for spiral movement of the door 20.

Said second frame section 14 comprises a second frame section portion 14-1 arranged for straight, here vertical, movement of the door 20, and a second frame section portion 14-2 for spiral movement of the door 20.

According to an aspect of the present disclosure, said second frame section portion 12-2 of said first frame section 12 and said second frame section portion 14-2 of said second frame section 14 are assembled together so that, for this exemplary spiral door operator system S, a head frame unit comprising said second frame section portions 12-2, 14-2.

According to an aspect of the present disclosure, said first frame section portion 12-1 of said first frame section 12 and said first frame section portion second frame section portions 12-2, 14-2 during assembly. According to an aspect of the present disclosure, said first frame section portion 12-1 of said first frame section 12 is a first column 12-1 and said first frame section portion 14-1 of said second frame section 14 is a second column 12-2. Said head frame unit comprising said second frame section portions 12-2, 14-2 is configured to be arranged above said first and second columns 12-1 , 12-2 so that said second frame section portion 12-2 of said first frame section 12 is arranged above said first column 12, and said second frame section portion 14-2 of said second frame section 14 is arranged above said second column 14.

Said spiral door 20 has opposite sides 20a, 20b, a first side 20a facing towards said first frame section 12, and a second short side 20b facing towards said second frame section 14, see fig. 1. Said door 20 has a first end side 20c, which in the closed position, for a door being vertically arranged in the closed position, as illustrated in fig. 1 , is the upper end side 20c, and an opposite end side 20d, which in the closed position is the lowest most side 20d, see fig. 1 .

The spiral door 20 comprises a plurality of interconnected sections 22 so as to allow change of direction of the door 20 during movement between said open position and closed position. Said interconnected sections 22 may also be denoted panels or lamellas. Said interconnected sections 22, when said door 20 is arranged in connection to said door frame 10, are configured to extend transversely between said first frame section 12 and opposite second frame section 14. Said interconnected sections 22 may also be denoted interconnected door sections 22.

Said interconnected sections 22 have opposite short sides 22a, 22b, a first short side 22a facing towards said first frame section 12, and a second short side 22b facing towards said second frame section 14. Said interconnected sections 22 have opposite long sides 22c, 22d running transversely between said frame sections 12, 14. Said interconnected sections 22 are arranged adjacent to each other and interconnected to each other in connection to the long sides 22c, 22d. Said first short sides 22a of the interconnected sections 22 form the first side 20a of the door, and said second short sides 22b of the interconnected sections 22 form the second side 20b of the door 20.

Said interconnected sections 22 are interconnected to each other so that they may pivot relative to each other in connection to adjacent long sides of adjacent sections 22. Said interconnected sections 22 are interconnected to each other via interconnections at adjacent sections, e.g. hinge members, so as to facilitate pivoting relative to each other. Said interconnections, e.g. hinge members, may facilitate pivoting about a transversal axis.

The spiral door operator system S further comprises a door movement arrangement for moving said door 20 between said open and closed position. According to an aspect of the present disclosure, said door movement arrangement comprises a first transmission member, not shown, configured to be arranged in connection to said first side I and a second transmission member, configured to be arranged in connection to said second side II. Said transmission members are configured to be connected to the door 20 at the respective side and configured to be movable so as to move said door 20 between said open and closed position. Said transmission members may e.g. be chains, belts or the like.

According to the exemplary embodiment of the door operator system S illustrated in fig. 1 , said door movement arrangement comprises a drive unit D for moving said door by means of said transmission members. According to an aspect of the present disclosure, said drive unit D comprises an electric motor.

According to an aspect of the present disclosure, the door operator system S comprises a roller 40, e.g. a transmission drum. According to an aspect of the present disclosure, said transmission members are connected to the drive unit D, wherein said drive unit D is configured to rotate said roller 40 about an axis X so as to facilitate moving the door 20 between said open and closed position. According to an aspect of the present disclosure, the door operator system S may comprise a control unit C for facilitating control of operation of said door operator system S, comprising controlling said drive unit D.

The door operator system S comprises a guiding arrangement A configured to facilitate guiding of the door 20 of the door operator system S when the door is moved between said open and closed position.

Said guiding arrangement A comprises a first protruding track member 100 configured to run along said first frame section 12, and a second protruding track member 100 configured to run along said second frame section 14.

According to an aspect of the present disclosure, as illustrated in e.g. fig. 1 , and fig. 2a-b, said first protruding track member 100 is arranged in connection to said first frame section 12 at said first side I so that it protrudes transversely towards said second frame section 14, and said second protruding track member 100 is arranged in connection to said second frame section 14 at said opposite second side II so that it protrudes transversely towards said first frame section 14 and hence said first protruding track member 100. The respective protruding track member has a protruding direction which is transversal.

According to the embodiment illustrated in e.g. fig. 1 and 2a-b, the first protruding track member 100 and second protruding track member 100 comprise a straight track 110 for straight guiding of said door 20 in connection to said opening O, and a spiral track 120 for guiding said door 20 so that said door 20 may be spirally assembled in the open position. Said straight tracks 110 are according to the embodiment illustrated in e.g. fig. 1 and 2a-b vertical tracks 110.

The respective protruding track member 100 has a longitudinal extension which is essentially orthogonal to its protruding direction. The respective protruding track member 100 has a thickness having an extension which is essentially orthogonal to its protruding direction and essentially orthogonal to its longitudinal extension. The respective protruding track member 100 has opposite sides, wherein the thickness of the respective protruding track member 100 corresponds to the shortest distance between said opposite sides.

The vertical track 110 of the first protruding track member 100 is configured to be arranged in connection to or constitute a portion of the first frame section portion 12-1 of the first frame section 12. The vertical track 110 of the second protruding track member 100 is configured to be arranged in connection to or constitute a portion of the first frame section portion 14-1 of the second frame section 14.

According to an aspect of the present disclosure, as illustrated in e.g. fig. 1 , the respective vertical track of the protruding track member 100, configured to run in connection to the respective frame section portion 12-1 , 14-1 , is configured to protrude from a portion 12p, 14p of said frame section portion 12-1 , 14-1 . According to an aspect of the present disclosure, said portions 12p, 14p constitute portions of the frame sections 12, 14 to which said protruding track member 100 is configured to be attached. According to an aspect of the present disclosure, said portions 12p, 14p of the respective frame section portion 12-1 , 14-1 constitute an integrated portion of said vertical track 110 of said protruding track member 100, wherein said vertical track 110 of said protruding track member 100 comprises a protruding portion and a nonprotruding portion, wherein, according to an aspect, said protruding portion is essentially orthogonal to said non-protruding portion.

The spiral track 120 of the first protruding track member 100 is configured to be arranged in connection to or constitute a portion of the second frame section portion 12-2 of the first frame section 12. The spiral track 120 of the second protruding track member 100 is configured to be arranged in connection to or constitute a portion of the second frame section portion 14-2 of the second frame section 14. Said second frame section portion 12-2 of the first frame section 12 comprises a plate element 300 for the spiral track 120 of the first protruding track member 100. Said spiral track 120 of the first protruding track member 100 is configured to be connected to said plate element of said second frame section portion 12- 2 of the first frame section 12. Said second frame section portion 14-2 of the second frame section 14 comprises a plate element 300 for the spiral track 120 of the second protruding track member 100. Said spiral track 120 of the second protruding track member 100 is configured to be connected to said plate element of said second frame section portion 14-2 of the second frame section 14.

According to an aspect of the present disclosure said spiral track 120 connected to said plate element 300 provides or is comprised in a spiral track arrangement TA. According to an aspect of the present disclosure said spiral track 120 connected to said plate element 300 for the second frame section portion 12-2 of the first frame section 12 provides or is comprised in a spiral track arrangement TA. According to an aspect of the present disclosure said spiral track 120 connected to said plate element 300 for the second frame section portion 14-2 of the second frame section 14 provides or is comprised in a spiral track arrangement TA. According to an aspect of the present disclosure, said spiral track arrangement TA comprises said spiral track 120 and said plate element 300 for the respective second frame section portion 12- 2, 14-2.

The plate element 300 of said second frame section portion 12-2 of said first frame section 12 has a front side 300f and an opposite rear side 300r. The plate element 300 of said second frame section portion 14-2 of said second frame section 14 has a front side 300f and an opposite rear side 300r. The spiral track 120 for the respective plate element 300 is configured to protrude from the front side 300f. The front sides 300f of the plate elements 300 are configured to face each other. The plate elements 300 are configured to be arranged so that the front side 300f of the plate element 300 of the first frame section 12 and the front side 300f of the plate element 300 of the second frame section face towards each other, i.e. face towards said opening 0 in the transversal direction, so that the spiral track 120 of the first protruding track member 100 and the spiral track 120 of the second protruding track member 100 protrudes towards each other, when said spiral tracks 120 are connected to said plate elements 300.

Said plate element 300, separately illustrated e.g. in fig. 4, said spiral track 120, separately illustrated e.g. in fig. 5a-b, and said spiral track arrangement TA, illustrated e.g. in fig. 6a-b, 7, 8, 9a-b and 10a-b, are described in more detail below with reference to said figures.

According to an aspect of the present disclosure, the respective protruding track member 100, configured to run in connection to the respective frame section 12, 14, are sheet metal strips.

According to an aspect of the present disclosure, the second frame section portion 12-2, 14-2 of the first and second frame sections 12, 14 comprises said plate elements 300, said plate elements 300 having a plate configuration.

Said spiral door operator system S further comprises a first set of guiding members 200 distributed along and attached to said door 20 and configured to guidingly engage with said first protruding track member 100.

Said spiral door operator system S further comprises a second set of guiding members 200 distributed along and attached to said door 20 and configured to guidingly engage with said second protruding track member 100.

The respective guiding member 200 is pivotably connected to said door 20 so as to facilitate said change of direction of the door 20, i.e. change from straight movement to spiral movement, when sliding along said protruding track members 100 during movement between said open position and closed position. According to an aspect of the present disclosure, said protruding track members 100 and said set of guiding members 200 are comprised in a guiding arrangement A configured to facilitate guiding of a door of the door operator system S when the door is moved between an open and closed position, see e.g. fig. 1.

Fig. 3 schematically illustrates a side view of a portion of a guiding arrangement with guiding members 200 pivotably connected to a door 20 about an axis X2 and being guidingly engaged to a spiral track 120 of the protruding track member 100, a part of the spiral track 120 being shown. Said guiding members are guidingly engaged to said spiral track 120 of said protruding track member 100 for guiding door sections 22 of the door 20 along said protruding track member 100.

Said set of guiding members 200 may comprise any suitable guiding member for facilitating said guiding. Thus, said spiral track 120 according to the present disclosure is configured to receive any suitable guiding member 200 for being guided along said spiral track 120 during door movement.

According to an aspect of the present disclosure said sets of guiding members 200 comprises one or more sliding members 200 configured to at least partly surround and slidingly engage with said spiral track 120 of said protruding track member 100, one such sliding member 200, i.e. the centre one, being shown in fig. 3.

According to an aspect of the present disclosure said sets of guiding members 200 comprises one or more slide-roller members having a sliding element 210 and an opposite roller member 220 and being configured to at least partly surround said protruding track member 100, here the spiral track 120 of the protruding track member 100, so that said sliding element 210 slidingly engages with one side and said roller member 220 rollingly engages with an opposite side of a pair of opposite sides 100o, 100i of said protruding track member. In fig. 3 two such slide-roller members 200 are shown, one with the sliding element 210 facing the inner side 10Oi and the roller member 220 facing the outer side 100o of said opposite sides 100o, 10Oi of said protruding track member 100 and the other with the sliding element 210 facing the outer side 100o and the roller member 220 facing the inner side 10Oi of said opposite sides 100o, 10Oi of said protruding track member 100.

According to an aspect of the present disclosure said sets of guiding members 200 comprises one or more double roller members, not shown, having opposite rollers arranged so that one roller roll ingly engages with one side and the opposite roller rollingly engages with an opposite side of said protruding track member.

Thus, the spiral door operator system S, i.e. the guiding arrangement A of the spiral door operator system S, may comprise sets of guiding members 200 comprising one or more such sliding members 200 and/or one or more such slide-roller members 200 and/or one or more double roller members.

Fig. 4 schematically illustrates a perspective view of a plate element 300 of a spiral track arrangement, according to an aspect of the present disclosure.

Said plate element 300 has a front side 300f and an opposite rear side 300r. Said plate element 300 has a flat configuration. Said plate element 300 has a thickness T 1 , see also fig. 8.

Said plate element has a spiral slot S300. According to an aspect of the present disclosure, said spiral slot S300 on said plate element 300 has been provided through stamping. Thus, said plate element 300 has been stamped so as to provide a spiral slot S300 on said plate element 300. Stamping facilitates easy and efficient provision of said spiral slot S300. Said spiral slot S300 may alternatively be provided through laser-cutting, plasma-cutting or water beam cutting.

Said spiral slot S300 is a slot provided through said plate element 300 so that said spiral slot S300 provides an opening from the front side 300f to and through the rear side 300r of said plate element 300. Said spiral slot S300 has a width W1. Said spiral slot S300 may also be denoted spiral cut or spiral groove.

Fig. 5a schematically illustrates a perspective view of a spiral track 120 of a spiral track arrangement, according to an embodiment of the present disclosure; and, fig. 5b schematically illustrates a perspective view of a portion of the spiral track 120 in fig. 5a, according to an embodiment of the present disclosure.

The spiral track 120 has a longitudinal extension L, a transversal extension P orthogonal to said longitudinal extension L, and a thickness T2 which has an extension essentially orthogonal to the longitudinal extension L and transversal extension P of the spiral track 120. The transversal extension P of the spiral track 120 corresponds to the protruding extension P of the spiral track 120, when connected to the plate element 300, see e.g. fig. 6a, 7 and 8.

Said spiral track 120 has opposite sides 120o, 120i. The thickness T2 of said spiral track 120 corresponds to the shortest distance between said opposite sides 120o, 120i. Said opposite sides 120o, 10Oi of said spiral track 120 are according to an aspect denoted outer side 120o and inner side 120i, where said outer side 120o is the side facing outwardly, i.e. providing the outer curve, of said spirally shaped spiral track 120 of said protruding track member 100.

According to an aspect the thickness of the spiral track 120 may be in the range of 1 -4 mm, preferably in the range of 1.5-3 mm, and the spiral slot 120 may be approximately 0.2-1 .5 preferably 0.3-1 mm wider. Said spiral track may be made of any material suitable for bending into a spiral shape and connect to said spiral slot S300. Preferably said spiral track is made of a sheet metal strip. The thickness of the spiral track 120. may depend on the material.

Said spiral track 120 has opposite longitudinal edges 120f, 120r running in the longitudinal extension L of said spiral track 120. Said opposite longitudinal edges 120f, 120r comprises a front edge 120f configured, when said spiral track 120 is connected to the plate element 300, to face outwardly from the front side 300f of said plate element and a rear edge 120r configured, when said spiral track 120 is connected to the plate element 300, to face outwardly from the rear side 300r of the plate element 300. Said spiral track 120 has a width H corresponding to the distance between said front edge 120f and said rear edge 120r, see also fig. 8.

Said spiral track 120 has a first end portion 120-1 configured to be arranged in line with the straight track 110 of said protruding track member 100 so as to facilitate guiding movement of guiding members 200 in the transmission between the straight track 110 and the spiral track 120. Said spiral track 120 has a second end portion 120-2 configured to be the inner most end of the spiral track 120.

The thickness T2 of said spiral track 120 is slightly smaller than the width W1 of said spiral slot S300 so as to allow said spiral track to be fit within said spiral slot S300.

Said spiral track 120 comprises a set of openings H120 distributed around said spiral track 120, on the side of said, from the rear side 300r of said plate element 300, protruding connection portion 124 of said spiral tracks 120. Said set of opening H120 are openings through said spiral track 120 from one of said opposite sides 120o, 120i to and through the other side. Said set of openings H120 and their intended purpose is described in more detail with reference to e.g. fig. 8, 10a-b and 11 .

The final spiral shape is obtained when said spiral track has been applied to said spiral slot, e.g. through pushing and bending. The track or strip from which said spiral track 120 is provided is made from a stiff and rigid material having flexible properties so that it can be bent into said spiral shape without breaking. The material of said track may be steel, stainless steel, plastic, wood or the like. Preferably said spiral track 120 is made from a sheet metal strip. Fig. 6a schematically illustrates a perspective view of a spiral track arrangement TA, viewed from the front side 300f of the plate element 300 in fig. 4, with the spiral track 120 in fig. 5a arranged in connection to the spiral slot S300 of the plate element 300, according to an aspect of the present disclosure. Fig. 6b schematically illustrates a perspective view of a portion of the spiral track arrangement TA in fig. 6a. Fig. 7 schematically illustrates a perspective view of the spiral track arrangement TA in fig. 6a, viewed from the rear side 300r of the plate element 300. Fig. 8 schematically illustrates a perspective view of a portion of the spiral track arrangement TA in fig. 6a, viewed from the rear side 300r of the plate element 300.

As illustrated in e.g. fig. 6a-b, the spiral track 120 is applied to said spiral slot S300 so that a portion 122, here denoted guiding portion 122, of said spiral track 120, is protruding outwardly from said front side 300f of said plate element 300.

As illustrated in e.g. fig. 7 and 8, the spiral track 120 is applied to said spiral slot S300 so that a portion 124, here denoted connection portion 124, of said spiral track 120, is protruding outwardly from said rear side 300r of said plate element 300.

As illustrated in fig. 8, said guiding portion 122 of said spiral track 120 is configured to protrude a distance H1 from said front side 300f of said plate element 300, and said connection portion 124 of said spiral track 120 is configured to protrude a distance H2 from said rear side 300r of said plate element 300. According to an aspect of the present disclosure, said distance H1 is greater than said distance H2. According to another aspect of the present disclosure, the distance H2 is greater than said distance H1 , not shown, which may facilitate increased stiffness of the spiral track arrangement.

As illustrated in fig. 6a-b, the length or extension of said spiral track 120 is slightly shorter than the length or extension of said spiral slot S300 so that said second end portion 120-2, configured to be the inner most end of the spiral track 120, ends prior to the inner most end of the spiral slot S300.

Fig. 9a schematically illustrates a perspective view of the spiral track arrangement TA in fig. 6a, viewed from the rear side 300r of the plate element 300, and fig. 9b schematically illustrates a perspective view of a portion of the spiral track arrangement in fig. 9a.

As illustrated in fig. 9a-b, said spiral track arrangement Ta comprises a reinforcement arrangement 400 attached on said rear side 300r of said plate element 300 for connecting said spiral track 120 to said plate element 300.

Said reinforcement arrangement 400 may be attached to said rear side 300r of said plate element 300 in any suitable way. Said reinforcement arrangement 400 is according to an aspect of the present disclosure configured to be attached to said rear side 300r of said plate element 300 by means of joint members such as e.g. screw joint members.

Said reinforcement arrangement 400, when attached to said rear side 300r of said plate element 300, is configured to be arranged in connection to and thus covering at least parts of said spiral slot S300 of said plate element 300.

According to an aspect of the present disclosure, said reinforcement arrangement 400 comprises a set of cuts C1 configured to face said rear side 300r of said plate element 300 when said reinforcement arrangement 400 is attached to said rear side 300r of said plate element 300. Said cuts C1 of said reinforcement arrangement 400 are configured to be distributed on said reinforcement arrangement 400 so that, when said reinforcement arrangement 400 is attached to said rear side 300r of said plate element 300, said set of cuts C1 are aligned with slot portions of said spiral slot S300.

Thus, said cuts C1 of said reinforcement arrangement 400 are configured to be distributed on said reinforcement arrangement 400 so that, when said reinforcement arrangement 400 is attached to said rear side 300r of said plate element 300, can receive said connection portion 124. The depth of said set of cuts C1 essentially corresponds to the protruding distance H2 of said connection portion 124. Thus, said set of cuts C1 are configured to act as stops for said spiral track 120, when said spiral track 120 is applied from said front side 300f on said spiral slot S300, so that said spiral track 120 is only allowed to protrude from said rear side 300r said distance H2.

Said reinforcement arrangement 400 may be configured in any suitable way. In the embodiment illustrated in fig. 9a-b, said reinforcement arrangement 400 comprises reinforcement members 410, 420, 430, here three reinforcement members 410, 420, 430. Said reinforcement members 410, 420, 430 comprises a first reinforcement member 410, a second reinforcement member 420 and a third reinforcement member 430. Said reinforcement members 410, 420, 430 are here provided as beams having longitudinal edge sections running parallel to each other and being connected by transversal connectors, said edge sections comprising cuts C1 of said set of cuts C1. Here, said first reinforcement member 410 is running along the rear side 300r of the plate element 300 from one side to the other, crossing portions of said spiral slot S300, wherein said second reinforcement member 420 and said third reinforcement member 430 are running along the rear side 300r on the respective side of said first reinforcement member 410, in a longitudinal direction of extension essentially orthogonal to the longitudinal direction of extension of said first reinforcement member 410.

Parts of said, from the rear side 300r of the plate element 300 protruding connection portion 124 of said spiral track 120 are configured to be closely received within said cuts C1 of said reinforcement arrangement 400 facing said rear side 300f of said plate element 300.

Fig. 10a-b and fig. 11 schematically illustrates a perspective view of different embodiments of a portion of the spiral track arrangement TA in fig. 7, where said spiral track arrangement TA comprises a set of position holding members 500, one position holding member 500 being shown, for holding said spiral track 120 in position at said plate element 300.

As mentioned above, with reference to fig. 5a-b, said spiral track 120 comprises a set of openings H120 distributed around said spiral track 120, on the side of said, from the rear side 300r of said plate element 300, protruding connection portion 124 of said spiral tracks 120. Said set of opening H120 are openings through said spiral track 120 from one of said opposite sides 120o, 120i to and through the other side. Said set of openings H120 are configured to be arranged at said connection portion 124 close to the rear side 300r of said plate element 300, when said spiral track 120 is applied to said spiral slot S300 of said plate element 300, see e.g. fig. 8. Said opening H120 arranged at said connection portion 124 close to the rear side 300r have, according to an aspect, a width or extension extending in the longitudinal direction of extension of said spiral track 120, i.e. connection portion 124 of said spiral track 120.

According to an aspect of the present disclosure, said spiral track 120 comprises another set of openings 0120 distributed around said spiral track 120, on the side of said, from the rear side 300r of said plate element 300, protruding connection portion 124 of said spiral tracks 120. These openings are, according to an aspect, circular openings being arranged at said connection portion 124 between said rear side 300r of said plate element 300 and said rear edge 120r of said spiral track 120, see e.g. fig. 8.

Fig. 10a schematically illustrates a perspective view of a portion of the spiral track arrangement TA in fig. 7, said spiral track arrangement TA comprising a position holding member 500 for holding said spiral track 120 in position at said plate element 300, according to an embodiment of the present disclosure. In this embodiment, said position holding member 500 comprises a plug member 510 configured to be arranged through said opening H 120 so that it engages with said rear side 300r of said plate element 300, providing fixation of said spiral track 120 in connection to said plate element 300. Said plug member 510 may comprise a pasty material which is applied in the opening H120, and which then becomes hardened. Such a pasty material of the plug member 510 may be hot glue, acrylic, silicone or the like. Said plug member 510 may comprise a rubber element.

Said set of holding members 500 of said spiral track arrangement TA may comprise a set of such plug members 510 distributed around said connection portion 124 of said spiral track 120 in connection to said openings H120.

Fig. 10b schematically illustrates a perspective view of a portion of the spiral track arrangement TA in fig. 7, said spiral track arrangement TA comprising a position holding member 500 for holding said spiral track 120 in position at said plate element 300, according to an embodiment of the present disclosure. In this embodiment, said position holding member 500 comprises an L-shaped attachment member 520.

Said L-shaped attachment member 520 comprises a first attachment portion 522 configured to be connected to said connection portion 124 of said spiral track 120 via an opening 0120, and a second attachment portion 524 configured to be connected to the rear side 300r of said plate element 300. Said L-shaped attachment member 520 may comprise joint members such as screw joint members for attaching said first attachment portion 522 to said connection portion 124 via said opening 0120 and attaching said second attachment portion 524 to said rear side 300f of said plate element 300.

Said set of holding members 500 of said spiral track arrangement TA may comprise a set of such L-shaped attachment members 520 distributed around said connection portion 124 of said spiral track 120 in connection to said opening 0120.

Fig. 11 schematically illustrates a perspective view of a portion of the spiral track arrangement TA in fig. 7, said spiral track arrangement TA comprising a position holding member 500 for holding said spiral track 120 in position at said plate element 300, according to an embodiment of the present disclosure. In this embodiment, said position holding member 500 comprises a clip element 530 configured to be arranged through said opening H 120 so that it engages with said rear side 300r of said plate element 300, providing fixation of said spiral track 120 in connection to said plate element 300.

Said set of holding members 500 of said spiral track arrangement TA may comprise a set of such clip element 530 distributed around said connection portion 124 of said spiral track 120 in connection to said openings H120.

The spiral track arrangement TA of the spiral door operator system S is, according to an aspect of the present disclosure, configured to be assembled with a method M1 for assembling a spiral track arrangement TA for a spiral door operator system S.

Fig. 12 schematically illustrates a flowchart of a method M1 for assembling a spiral track arrangement for a spiral door operator system, according to an aspect of the present disclosure.

The spiral door operator system comprises a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side. The spiral door operator system comprises a door arranged to be moved between an open position and a closed position, the door being movably arranged in connection to the door frame; wherein the door comprises a plurality of interconnected sections so as to allow spiral movement of the door. The spiral door operator system comprises a first protruding track member configured to run along said first frame section, and a second protruding track member configured to run along said second frame section, wherein the first and second protruding track members comprise a straight track for straight guiding of said door, in connection to said opening, and a spiral track for spiral guiding of said door, said first and second frame sections comprising a plate element for said spiral tracks. The spiral door operator system comprises a first set of guiding members distributed along and attached to said door and configured to giudingly engage with said first protruding track member; and a second set of guiding members distributed along and attached to said door and configured to giudingly engage with said second protruding track member. The spiral door operator system may be any suitable spiral door operator system. The spiral door operator system may a spiral door operator system according to fig. 1 .

According to an aspect, the method M1 comprises a step S1. In this step, a spiral slot is provided onto said plate element.

According to an aspect, the method M1 comprises a step S1. In this step, a track is applied to said spiral slot so that said track is connected to said plate element as a spiral track.

Fig. 13 schematically illustrates a flowchart of a method for assembling a spiral track arrangement for a spiral door operator system, according to an embodiment of the present disclosure.

The spiral door operator system comprises a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side. The spiral door operator system comprises a door arranged to be moved between an open position and a closed position, the door being movably arranged in connection to the door frame; wherein the door comprises a plurality of interconnected sections so as to allow spiral movement of the door. The spiral door operator system comprises a first protruding track member configured to run along said first frame section, and a second protruding track member configured to run along said second frame section, wherein the first and second protruding track members comprise a straight track for straight guiding of said door, in connection to said opening, and a spiral track for spiral guiding of said door, said first and second frame sections comprising a plate element for said spiral tracks. The respective plate element has a front side and a rear side. The spiral door operator system comprises a first set of guiding members distributed along and attached to said door and configured to giudingly engage with said first protruding track member; and a second set of guiding members distributed along and attached to said door and configured to giudingly engage with said second protruding track member. The spiral door operator system may be any suitable spiral door operator system. The spiral door operator system may a spiral door operator system according to fig. 1 .

According to an aspect, the method M2 comprises a step S11 a. In this step, a spiral slot is provided onto and through said plate element. According to an aspect of the present disclosure, said step S1 1a of providing a spiral slot to said plate element comprises stamping said plate element so that said slot is provided from the front side to and through the rear side of said plate element.

According to an aspect, the method M2 comprises a step S11 b. In this step, a strip is bent into a spirally shaped spiral track.

Step S11 a and step S11 b may be performed one before the other or at the same time.

According to an aspect, the method M2 comprises a step S12. In this step, a reinforcement arrangement is attached on the rear side of the plate element.

According to an aspect, the method M2 comprises a step S13. In this step, said spirally shaped spiral track is applied to said spiral slot so that a portion of said spiral track is allowed through said slot and connects with the reinforcement arrangement. According to an aspect of the present disclosure, the step of connecting a portion of said spiral track with said reinforcement arrangement comprises introducing connection portions of said, from the rear side of said plate element protruding connection portion of said spiral track into cuts of said reinforcement arrangement facing said rear side.

According to an aspect, the method M2 may comprise a step, not shown in fig. 13, following step S13, the step comprising applying position holding members to openings of a set of openings distributed around said connection portion of said spiral track so as to facilitate holding said spiral track in position at said plate element.

The description of the aspects of the disclosure provided herein has been presented for purposes of illustration. The description is not intended to be exhaustive or to limit aspects of the disclosure to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of various alternatives to the provided aspects of the disclosure. The examples discussed herein were chosen and described in order to explain the principles and the nature of various aspects of the disclosure and its practical application to enable one skilled in the art to utilize the aspects of the disclosure in various manners and with various modifications as are suited to the particular use contemplated. The features of the aspects of the disclosure described herein may be combined in all possible combinations of methods, apparatus, modules, systems, and computer program products. It should be appreciated that the aspects of the disclosure presented herein may be practiced in any suitable combination with each other.

Claims

1. A method for assembling of a spiral track arrangement (TA) for a spiral door operator system (S), the spiral door operator system (S) being configured for opening and closing an opening (0), the spiral door operator system comprising: a door frame (10) comprising a first frame section (12) at a first side (I) of the opening (0) and a second frame section (14) at a second side (II) of the opening (0) opposite the first side (I); a door (20) arranged to be moved between an open position and a closed position, the door (20) being movably arranged in connection to the doorframe (10); wherein the door (20) comprises a plurality of interconnected sections (22) so as to allow spiral movement of the door (20), a first protruding track member (100) configured to run along said first frame section (12), and a second protruding track member (100) configured to run along said second frame section (14), wherein the first and second protruding track members (100) comprise a straight track (110) for straight guiding of said door (20), in connection to said opening (O), and a spiral track (120) for spiral guiding of said door (20), said first and second frame sections (12, 14) comprising a plate element (300) for said spiral tracks (120); a first set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said first protruding track member (100); and a second set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said second protruding track member (100), wherein said method comprises the steps of:

- providing (S1 ) a spiral slot (S300) onto said plate element (300); and,

- applying (S2) a track to said spiral slot (S300) so that said track is connected to said plate element (300) as a spiral track (120).

2. The method according to claim 1 , further comprising the step of, prior to connecting said track (120) to said spiral slot (S300), bending said track into a spiral shape so as to provide said spirally shaped spiral track (120).

3. The method according to claim 1 or 2, wherein the step of providing a spiral slot (S300) to said plate element (300) comprises stamping said plate element (300).

4. The method according to any of claims 1-3, wherein the plate element (300) of said first and second frame sections (12, 14) has a front side (300f) and an opposite rear side (300r), wherein the step of providing a spiral slot (S300) to said plate element (300) comprises providing said spiral slot (S300) through said plate element (300) so that said spiral slot (S300) provides an opening from the front side (300f) to the rear side (300r) of said plate element (300).

5. The method according to claim 4, wherein the step of applying (S2) the track to said spiral slot (S300) so that said track is connected to said plate element (300) as a spiral track (120) comprises attaching a reinforcement arrangement (400) on the rear side and applying said spiral track (120) to said spiral slot (S300) on the front side (300f) of said plate element (300) so that a connection portion (124) of said spiral track (120) is allowed through to the rear side (300r) of said spiral slot (S300) and connects with said reinforcement arrangement (400) and a guiding portion (122) of said spiral track (120) protrudes from said front side (300f).

6. The method according to claim 5, wherein the step of connecting a portion of said spiral track (120) with said reinforcement arrangement (400) comprises introducing portions of said, from the rear side of said plate element (300) protruding connection portion (124) of said spiral track into cuts (C1 ) of said reinforcement arrangement (400) facing said rear side (12-2r, 14-2r).

7. The method according to any of claim 4-6, the method comprising, prior to applying (S2) the track to said spiral slot (S300), providing a set of openings (H120, 0120) distributed around a connection portion (124) said spiral track (120) on the side of said spiral track (120); wherein the step of applying said track to said spiral slot (S300) is performed on the front side (300f) of said plate element (300) so that said connection portion (124) of said spiral track (120) with said set of openings (H120, 0120) is allowed through to the rear side (300r) of said spiral slot (S300), the method further comprising the step of applying position holding members (500) to openings of said set of openings (H120, 0120) so as to facilitate holding said spiral track (120) in position at said plate element (300).

8. The method according to any of claims 1 -7, wherein said spiral track (120) is made of a sheet metal strip.

9. A spiral track arrangement (TA) of a spiral door operator system (S), the spiral door operator system (S) being configured for opening and closing an opening (O), the spiral door operator system comprising: a door frame (10) comprising a first frame section (12) at a first side (I) of the opening (O) and a second frame section (14) at a second side (II) of the opening (0) opposite the first side (I); a door (20) arranged to be moved between an open position and a closed position, the door (20) being movably arranged in connection to the doorframe (10); wherein the door (20) comprises a plurality of interconnected sections (22) so as to allow spiral movement of the door (20), a first protruding track member (100) configured to run along said first frame section (12), and a second protruding track member (100) configured to run along said second frame section (14), wherein the first and second protruding track members (100) comprise a straight track (110) for straight guiding of said door (20), in connection to said opening (O), and a spiral track (120) for spiral guiding of said door (20); a first set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said first protruding track member (100); and a second set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said second protruding track member (100), wherein said spiral track arrangement (TA) comprises: said spiral tracks (120); and, a plate element (300) of said first frame section (12) and a plate element (300) of said second frame section (14); wherein the respective plate element (300) is provided with a spiral slot (S300), wherein said spiral tracks (120) are connected to said plate elements (300) via application of said spiral tracks (120) to said spiral slots (S300).

10. The spiral track arrangement according to claim 9, wherein said spiral tracks (120) are provided by pre-bent strips bent into a spiral shape.

11 . The spiral track arrangement according to claim 9 or 10, wherein the spiral slot (S300) of the respective plate element (300) stamped slots (S300) provided through stamping of said plate elements (300).

12. The spiral track arrangement according to any of claims 9-11 , wherein the plate element (300) of said first and second frame sections (12, 14) has a front side (300f) and an opposite rear side (300r), said plate elements (300), when assembled, being configured to be arranged so that the front side (300f) of the plate element (300) of the first frame section (12) and the front side (300f) of the plate element (300) of the second frame section (14) face towards each other, wherein said spiral slot (S300) is a slot provided through said plate element (300) so that said spiral slot (S300) provides an opening from the front side (300f) to the rear side (300r) of said plate element (300).

13. The spiral track arrangement according to claim 12, further comprising a reinforcement arrangement (400) attached on the rear side (300r) of said plate elements (300), wherein a connection portion (124) of said, at said spiral slot (S300) provided, spiral track (120), projecting outwardly from said rear side (300r) of said plate element (300), is connected to said reinforcement arrangement (400), wherein a remaining guiding portion (122) of said spiral track (120) is configured to protrude from said front side (300f) for engagement with said gliding members (200).

14. The spiral track arrangement according to claim 13, wherein parts of the, from the rear side of said plate element (300) protruding connection portion (124) of said spiral track (120) are configured to be closely received within cuts (C1 ) of said at least one reinforcement arrangement (400) facing said rear side (300f) of said plate element (300).

15. The spiral track arrangement according to any of claims 12-14, wherein said spiral tracks (120) comprise a set of openings (H120, 0120) distributed on the side of around said from the rear side (300r) of said plate element (300) protruding connection portion (124) of said spiral tracks (120), said spiral track arrangement further comprising a set of position holding members (500) applied to openings of said set of openings (H120, 0120) so as to facilitate holding said spiral track (120) in position at said plate element (300).

16. The spiral track arrangement according to any of claims 9-15, wherein said spiral track (120) is made of a sheet metal strip.

17. A spiral door operator system (S), the spiral door operator system (S) being configured for opening and closing an opening (O), the spiral door operator system comprising: a door frame (10) comprising a first frame section (12) at a first side (I) of the opening (O) and a second frame section (14) at a second side (II) of the opening (O) opposite the first side (I); a door (20) arranged to be moved between an open position and a closed position, the door (20) being movably arranged in connection to the doorframe (10); wherein the door (20) comprises a plurality of interconnected sections (22) so as to allow spiral movement of the door (20), a first protruding track member (100) configured to run along said first frame section (12), and a second protruding track member (100) configured to run along said second frame section (14), wherein the first and second protruding track members (100) comprise a straight track (110) for straight guiding of said door (20), in connection to said opening (O), and a spiral track (120) for spiral guiding of said door (20); a first set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said first protruding track member (100); and a second set of guiding members (200) distributed along and attached to said door (20) and configured to giudingly engage with said second protruding track member (100), wherein said spiral door operator system comprises a spiral track arrangement (TA) according to any of claims 9-16.

18. The spiral door operator system according to claim 17, wherein said sets of guiding members (200) comprises one or more sliding members configured to at least partly surround and slidingly engage with said protruding track member (100) and/or one or more slide-roller members having a sliding element and an opposite roller member and being configured to at least partly surround said protruding track member (100) so that said sliding element slidingly engages with one side and said roller member rollingly engages with an opposite side of said protruding track member, and/or one or more double roller members having opposite rollers arranged so that one roller rollingly engages with one side and the opposite roller rollingly engages with an opposite side of said protruding track member.