EP4665938A1

EP4665938A1 - Guiding arrangement for a door operator system

Info

Publication number: EP4665938A1
Application number: EP24703541.3A
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: CN120693443A; WO2024170335A1

Abstract

A guiding arrangement (A) for a door operator system (S) comprising: a first frame section (12) at a first side I and a second frame section (14) at a second side (II) of an opening (0); a door (20) arranged to be moved between an open and closed position. The door (20) comprises a plurality of interconnected sections (22) so as to allow change of direction of the door (20) during door movement. Said guiding arrangement (A) comprises a first and second protruding track member (100) running along said first and second frame sections (12, 14). Said guiding arrangement further comprises a first and second set of sliding members (200) distributed along and attached to said door (20) and configured to slidingly engage with said first and second protruding track members (100). The respective sliding member (200) is pivotably connected to said door (20) so as to facilitate said change of direction of the door (20) when sliding along said protruding track members (100) during movement between said open position and closed position.

Description

GUIDING ARRANGEMENT FOR A DOOR OPERATOR SYSTEM

TECHNICAL FIELD

The present invention relates to a guiding arrangement for a door operator system. The guiding arrangement is configured to facilitate guiding of a door of the door operator system when the door is moved between an open and closed position. The present invention also relates to a door operator system comprising such a guiding arrangement. The present invention also relates to a sliding member of such a guiding 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. 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 roller pairs 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 in order to prevent changing the rotating direction of the rollers. Thus, utilizing pairs of rollers instead of single rollers increase costs, and the rollers may still be subjected to wear, and result in undesired noises.

There is thus a need to provide a guiding arrangement for a door operator system which may provide high speed door movement, which is cost-efficient, facilitates low noise operation, and low wear during guiding of the door.

OBJECT OF THE INVENTION

An object of the present invention is to provide guiding arrangement configured to guide a door of a door operator system when the door is moved between an open and closed position, which guiding arrangement facilitates high speed door movement, low noise during operation, low wear, and is cost-efficient.

Another object of the present invention is to provide a sliding member of such a guiding arrangement.

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

SUMMARY OF THE INVENTION

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

Specifically, an object of the invention is achieved by a guiding arrangement for a door operator system. The door operator system is configured for opening and closing an opening. The 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 door operator system further 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. The door comprises a plurality of interconnected sections so as to allow change of direction of the door during movement between said open position and closed position. Said guiding arrangement 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. Said guiding arrangement further comprises a first set of sliding members configured to be distributed along and attached to said door and configured to slidingly engage with said first protruding track member; and a second set of sliding members configured to be distributed along and attached to said door and configured to slidingly engage with said second protruding track member. The respective sliding member is configured to be pivotably connected to said door so as to facilitate said change of direction of the door when sliding along said protruding track members during movement between said open position and closed position. According to an aspect, said sliding members are pivotably connected to said door via a hinge member connecting adjacent door sections. According to an aspect, said hinge member is configured to provide interconnection between door sections of said door for facilitating mutual pivoting of adjacent door sections.

By providing such a guiding arrangement with sliding members pivotably connected to said door and slidingly engaged to such protruding track members, a guiding arrangement, for a door operator system, with low wear is facilitated. Further, a guiding arrangement, for a door operator system, which is cost-efficient is facilitated. Further, a guiding arrangement for a door operator system which, during door movement, facilitates low noise is provided. Further, a guiding arrangement for a door operator system which facilitates high speed door movement is provided.

According to an aspect of the present disclosure, the sliding member, when connected to a door and being slidingly engaged to a protruding track member, has a width having a main direction of extension corresponding to the longitudinal extension of the protruding track member, and a length having a main direction of extension corresponding to the transversal extension of the door. According to an aspect of the present disclosure, the sliding member, when connected to a door and being slidingly engaged to a protruding track member, is configured to be arranged and transversely extend in its length direction between a door side of the door and a frame section.

According to an embodiment of the guiding arrangement, the respective sliding member is configured to be rotatably attached to said door about an axis. Hereby said change of direction, e.g. spiral movement, of the door when sliding along said protruding track members during door movement is facilitated. According to an aspect of the present disclosure, the respective sliding member is configured to be rotatably connected to said door, e.g. via a hinge member, about an axis so that it is allowed to pivot/rotate relative to said door, and relative to said hinge member, if connected via a hinge member.

According to an embodiment of the guiding arrangement, the respective sliding member is configured to be attached in connection to interconnections of said interconnected sections to said door. Hereby said change of direction, e.g. spiral movement, of the door when sliding along said protruding track members during door movement is facilitated.

According to an embodiment of the guiding arrangement, the first and second protruding track member comprises a straight track for straight guiding of said door, by means of said sliding members, in connection to said opening, and a curved track for guiding said door, by means of said sliding members, so that said direction change of said door is provided.

According to an embodiment of the guiding arrangement, said curved track of the first and second protruding track member is a spiral track configured to allow the door, by means of said pivotably connected sliding members, during movement to an open position, to be spirally assembled. Such a protruding spiral track may have a spiral shape with an essentially circular configuration or a spiral shape with an essentially oval configuration.

According to an embodiment of the guiding arrangement, said first protruding track member is configured to be arranged in connection to said first frame section at said first side so that it protrudes transversely towards said second frame section, and said second protruding track member is configured to be arranged in connection to said second frame section at said opposite second side so that it protrudes transversely towards said first frame section and hence said first protruding track member. Hereby easy and robust guiding by means of said sliding members is facilitated. According to an embodiment of the guiding arrangement, the respective sliding member comprises or is made of a low friction material, for example low friction plastic. Hereby sliding against said protruding track members by means of, to said protruding track members, slidingly engaged sliding members, is facilitated, which further facilitates high speed door movement. Hereby no additional lubricant is required.

According to an embodiment of the guiding arrangement, the respective sliding member comprises sliding surfaces, said sliding surfaces being configured to facilitate sliding of said sliding member relative to said protruding track member when said sliding surfaces of said track member engages with said protruding track member during door movement. According to an aspect of the present disclosure, said sliding surfaces are made of said low friction material. Hereby sliding against said protruding track members by means of, to said protruding track members, slidingly engaged sliding members, is facilitated, which further facilitates high speed door movement.

According to an embodiment of the guiding arrangement, said sliding surfaces of said sliding members have a convex configuration. Hereby the risk of clamping during door movement may be efficiently reduced. According to an aspect of the present disclosure, said sliding surfaces have a convex configuration so as to facilitate sliding of said sliding member relative to said protruding track member and prevent clamping when said sliding surfaces of said track member engages with said protruding track member during door movement.

According to an embodiment of the guiding arrangement, the respective protruding track member, configured to run in connection to the respective frame section, is configured to protrude from a portion of said frame section, wherein the respective sliding member, when attached to the door and slidingly engaged to the protruding track member, is arranged at a distance from said portion. Hereby wear may be further reduced in that said sliding members, during normal operation involving door movement, are not in contact with said portion of the frame section from which said protruding track members are configured to protrude. Further, high speed door movement is facilitated in that said sliding members, being slidingly engaged with said protruding track members, during normal operation involving door movement, are not in contact with said portion of the frame section from which said protruding track members are configured to protrude.

According to an embodiment of the guiding arrangement, the respective sliding member, when attached to the door and slidingly engaged to the protruding track member, is allowed to transversely move relative to said protruding track member towards and contact said portion of said frame section, wherein said sliding member comprises at an end portion of said sliding member facing said portion so that, should said track member engage with said portion of said frame section, said sliding surface is configured to contact said portion so that sliding of said sliding member along said frame section is facilitated during door movement. According to an aspect of the present disclosure, said at least one sliding surface is made of said low friction material. Thus, if the door, due to transversal door movement, would move towards a frame section, said sliding surface configured to face said frame section will contact a contact surface of said portion of said frame section, so that sliding of said sliding member along said frame section is facilitated during door movement.

According to an embodiment, the guiding arrangement further comprises a connection arrangement for facilitating pivotable connection of the respective sliding member to the door, said connection arrangement comprising a first joint member and a second joint member, wherein the respective sliding member is attached to the door via said first joint member connected to the door and said second joint member connected to said sliding member and coaxially attached to said first joint member so that said sliding member is allowed to rotate about said axis. Hereby robust, easy and efficient connection of said sliding member to the door, e.g. via a hinge member, is facilitated, so that said pivoting, i.e. rotation, of said sliding member is facilitated. Said first joint member is according to an aspect a nut member and said second joint member a screw member.

According to an embodiment of the guiding arrangement, said connection arrangement comprises a connection opening in the respective sliding member, said connection opening being configured to face towards the door when the sliding member is attached to the door, wherein said first joint member comprises a tube portion configured to be closely received within said connection opening, said connection opening comprising an inner sliding surface configured to be in contact with said tube portion of said first joint member so as to facilitate pivoting of said sliding member about said axis. Hereby robust, easy and efficient connection of said sliding member so that said pivoting, i.e. rotation, of said sliding member is facilitated.

According to an embodiment of the guiding arrangement, a portion of said second joint member is arranged to run within said connection opening and tube portion to a space, said second joint member comprising an end portion arranged within said space so as to prevent movement of said sliding member away from said door in the axial direction relative to said connection opening. Hereby prevention of movement of said sliding member away from said door in the axial direction is easily and efficiently facilitated.

According to an embodiment of the guiding arrangement, a portion of said first joint member is arranged between an end portion of said sliding member facing said door and said door so as to prevent movement of said sliding member towards said door. Hereby prevention of movement of said sliding member towards said door in the axial direction is easily and efficiently facilitated.

According to an embodiment of the guiding arrangement, the respective protruding track member, configured to run in connection to the respective frame section, is provided by a single track, wherein the respective sliding member comprises a recess configured to at least partly surround a portion of said protruding track member when said sliding member is slidingly engaged to said protruding track member. Thus, said sliding member is configured to at least partly surround a portion of said protruding track member when said sliding member is slidingly engaged to said protruding track member. Thus, said recess of said sliding member is configured to receive a portion of said protruding track member when said sliding member is slidingly engaged to said protruding track member. Hereby robust, easy and efficient sliding, by means of said sliding member, is facilitated. By thus providing a protruding track member as a single track, a cost-efficient guiding arrangement is facilitated.

According to an embodiment of the guiding arrangement, the width of said recess of said sliding member is wider than the thickness of said protruding track member so that said sliding member is allowed to pivot when said sliding member slides in an arced path of said protruding track member during door movement. Thus, the shortest distance between opposite sides of said recess is greater than the thickness of said protruding track member, i.e. the thickness of said protruding single track. Thus, said protruding single track has opposite sides, wherein one of said opposite side of said recess is configured to face and engage with one of said sides of said protruding single track and the other of said opposite side of said recess is configured to face and engage with the other of said sides of said protruding single track. Hereby robust, easy and efficient sliding, by means of said sliding member, is facilitated both during straight, e.g. vertical guiding and during curved, e.g. spiral, guiding during door movement.

According to an embodiment of the guiding arrangement, said recess is configured to extend along the width of said sliding member from one side of said sliding member to the other, said extension of the recess, when said sliding member is slidingly engaged to said protruding track member, corresponding to the longitudinal extension of the portion of the protruding track member to which said sliding member is slidingly engaged, said recess comprising a central opening with a width greater than the width of the portion of the recess running from the respective side of said sliding member in the width direction towards said central opening. Hereby the width of the sliding member, and hence the extension of the recess in the direction along the protruding track member, may be extended and still facilitate said curved, e.g. spiral, guiding during door movement, thus facilitating a more stable guiding of said door. The longitudinal extension of said protruding track member is orthogonal to the protruding extension of said protruding track member.

According to an embodiment of the guiding arrangement, said sliding member is formed by a first sliding member part and a second sliding member part configured to be attached to said first sliding member part, said sliding member parts being shaped such that, when they are attached to each other, said recess is provided. Hereby said sliding member, with said recess, may be easily and efficiently constructed. Hereby said sliding member may be easily and efficiently assembled.

According to an embodiment of the guiding arrangement, the respective protruding track member, configured to run in connection to the respective frame section, is provided by a pair of protruding tracks running parallel at a distance from each other, wherein the respective sliding member comprises a sliding portion configured to be closely received between said pair of protruding tracks of said protruding track member when said sliding member is slidingly engaged to said protruding track member. Hereby robust, easy and efficient sliding, by means of said sliding member, is facilitated.

According to an embodiment of the guiding arrangement, the distance between said pair of protruding tracks of said protruding track member is greater than the width of said sliding portion of said sliding member so that said sliding member is allowed to pivot when said protruding track member slides in an arced path of said protruding track member during door movement. Hereby robust, easy and efficient sliding, by means of said sliding member, is facilitated both during straight, e.g. vertical, guiding and during curved, e.g. spiral, guiding during door movement. According to an embodiment of the guiding arrangement, said pair of protruding tracks of the respective protruding track member, configured to run in connection to the respective frame section, is configured to protrude from a portion of said frame section, wherein the respective sliding member, when attached to the door and slidingly engaged to the protruding track member, is arranged so that an end portion of said sliding member facing said portion is arranged at a distance from said portion, wherein said pair of protruding tracks have end portions with end surfaces, wherein the sliding member has a width which is wider than the width providing a protrusion with a contact surface configured be arranged at a distance from and face the end surface of one or both of said pair of protruding tracks, said distance being shorter than the distance between the end portion of said sliding member and said portion, so that, should a transversal movement of said sliding member towards said portion occur, said protrusion will act as a stop so that said contact surface contacts the end surface of one or both of said pair of protruding tracks so that sliding of said sliding member along said frame section is facilitated during door movement. By thus preventing said sliding member to contact said portion from which said protruding track member is protruding, and instead contacts said one or both of said end surfaces of said pair of protruding tracks, the torque force is substantially reduced, and may reduce the forces on the door significantly since friction is on said contact surface(s).

According to an embodiment of the guiding arrangement, the respective sliding member comprises a sliding member body and at least one sliding element, wherein at least one of said at least one sliding element is an integrated part of said sliding member body or a part connected to said sliding member body., Hereby efficient sliding is facilitated. According to an aspect of the present disclosure, said at one sliding element is made of a low friction material, for example low friction plastic. According to an aspect, said sliding member body is made of a low friction material, with said at least one sliding element being an integrated part. According to an aspect, said sliding member body is made of another material, e.g. a material facilitating a robust connection to said door and/or a robust configuration for sliding operation, and said at least one sliding element is made of a low friction material and being connected to said sliding member body.

According to an embodiment of the guiding arrangement, said sliding member comprises one or more reinforcement parts configured to be arranged in connection to said sliding member body so as to reinforce said sliding member. Hereby a more robust sliding member may be provided.

Specifically, an object of the invention is achieved by a door operator system, the door operator system being configured for opening and closing an opening, the door operator system comprising: 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; 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 change of direction of the door during movement between said open position and closed position; and, a guiding arrangement a set out herein.

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 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 guiding arrangement of a door operator system with the door in the closed position, according to an embodiment of the present disclosure;

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

Fig. 3a schematically illustrates a perspective view of a portion of a guiding arrangement and a pair of door sections of a door, the door sections being guided by means of sliding members slidingly engaged to a protruding track member, according to an embodiment of the present disclosure;

Fig. 3b schematically illustrates a perspective view of a portion of the portion of the guiding arrangement in fig. 3a, according to an embodiment of the present disclosure;

Fig. 4 schematically illustrates a side view of a portion of a guiding arrangement with sliding members guiding door sections of a door along an arc-shaped protruding track member, according to an embodiment of the present disclosure;

Fig. 5 schematically illustrates a side view of a sliding member and protruding track member in fig. 4, according to an embodiment of the present disclosure;

Fig. 6a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member being a single track, according to an embodiment of the present disclosure;

Fig. 6b schematically illustrates a top cross-sectional view of a portion of fig. 6a with the sliding member slidingly engaged to the protruding track member, according to an embodiment of the present disclosure;

Fig. 7 schematically illustrates a top cross-sectional view of a sliding member connected to a door by means of connection arrangement and being slidingly engaged to a protruding track member, according to an embodiment of the present disclosure;

Fig. 8 schematically illustrates a top cross-sectional view of a sliding member connected to a door by means of connection arrangement and being slidingly engaged to a protruding track member, according to an embodiment of the present disclosure;

Fig. 9a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member provided by a pair of tracks, according to an embodiment of the present disclosure;

Fig. 9b schematically illustrates a top cross-sectional view of a portion of fig. 9a with the sliding member slidingly engaged to the protruding track member, according to an embodiment of the present disclosure;

Fig. 10 schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member being a single track, according to an embodiment of the present disclosure;

Fig. 11 schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member being a single track, the sliding member being reinforced by reinforcement part, according to an embodiment of the present disclosure;

Fig. 12a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member being a single track, the sliding member being reinforced by reinforcement part, according to an embodiment of the present disclosure;

Fig. 12b schematically illustrates a top cross-sectional view of a portion of fig. 12a with the sliding member slidingly engaged to the protruding track member, according to an embodiment of the present disclosure; Fig. 13a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member provided by a pair of tracks, the sliding member being reinforced by reinforcement part, according to an embodiment of the present disclosure;

Fig. 13b schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member provided by a pair of tracks, the sliding member being reinforced by reinforcement part, according to an embodiment of the present disclosure;

Fig. 14 schematically illustrates a top cross-sectional view of a sliding member, made of two sliding member parts, connected to a door and being slidingly engaged to a protruding track member being a single track, according to an embodiment of the present disclosure;

Fig. 15 schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track with a transmission member connected to the door and configured to be driven so as to move the door, according to an embodiment of the present disclosure;

Fig. 16a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member being a single track, the sliding surfaces having a convex configuration, according to an embodiment of the present disclosure;

Fig. 16b schematically illustrates a top cross-sectional view of a portion of fig. 16a with the sliding member slidingly engaged to the protruding track member, where the door has been subjected to a force so that the door and hence the sliding member has an angle relative to the protruding direction of said protruding track member according to an embodiment of the present disclosure;

Fig. 17a schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member provided by a pair of tracks, according to an embodiment of the present disclosure;

Fig. 17b schematically illustrates a top cross-sectional view of a sliding member connected to a door and being slidingly engaged to a protruding track member provided by a pair of tracks, according to an embodiment of the present disclosure;

Fig. 18 schematically illustrates a perspective view of sliding member made of two sliding member parts assembled together, according to an embodiment of the present disclosure; and,

Fig. 19 schematically illustrates a perspective view of sliding member in fig. 18 with the two sliding member parts disassembled, 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 at least one direction change. 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 operator system according to the present disclosure may alternatively be a door operator system where the door, in the closed position is arranged substantially vertical, and in the open position is arranged in an inclined position relative to said vertical position, e.g. a horizontal position or a position with an angle between said vertical position and said horizontal position.

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 door operator system S for opening and closing an opening 0, according to an aspect of the present disclosure.

The door operator system S is arranged to be installed in, or in front of, said opening 0, which, according to an aspect of the present disclosure may be defined by a wall and a ground/floor.

The 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 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 guiding arrangement of a door operator system, e.g. the door operator system S in fig. 1 , with the door 20 in the closed position, according to an aspect of the present disclosure; and fig. 2b schematically illustrates a side view of the guiding arrangement in fig. 2a with the door 20 in the open position, according to an aspect of the present disclosure.

The door operator system S is a spiral door operator system where the door 20, in the closed position, is arranged substantially vertical, see fig. 2a, and in the open position is spirally assembled, see fig. 2b.

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.

Said 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 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 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 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 an aspect of the present disclosure, as illustrated in e.g. fig. 1 , the respective protruding track member 100, configured to run in connection to the respective frame section 12, 14, is configured to protrude from a portion 12p, 14p of said frame section 12, 14. Said portion 12p, 14p may be denoted frame section portion 12p, 14p. According to an aspect of the present disclosure, said frame section 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 frame section portions 12p, 14p constitute an integrated portion of said protruding track member 100, wherein said protruding track member 100 comprises a protruding portion and a non-protruding portion, see e.g. fig. 6a-b where said protruding track member 100 has an L-shape.

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 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 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. 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. The respective protruding track member 100, configured to run in connection to the respective frame section 12, 14, may be provided and assembled in any suitable way by means of any suitable material.

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 alternative aspect, the respective protruding track member 100, configured to run in connection to the respective frame section 12, 14, are aluminium profiles.

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 plate elements having a plate configuration.

According to an aspect of the present disclosure, the spiral tracks 120 of the first and second protruding track members 100 are sheet metal strips which have been bent into a spiral shape, prior to attachment to said second frame section portion 12-2, 14-2, e.g. plate elements, of the first and second frame sections 12, 14.

Said guiding arrangement A further comprises a first set of sliding members 200 distributed along and attached to said door 20 and configured to slidingly engage with said first protruding track member 100.

Said guiding arrangement A further comprises a second set of sliding members 200 distributed along and attached to said door 20 and configured to slidingly engage with said second protruding track member 100.

The respective sliding member 200 is pivotably connected to said door 20 so as to facilitate said change of direction of the door 20 when sliding along said protruding track members 100 during movement between said open position and closed position.

Fig. 3a schematically illustrates a perspective view of a portion of a guiding arrangement of a door operator system S, e.g. according to fig. 1 , and a pair of door sections 22 of a door 20, according to an aspect of the present disclosure. The door sections 22 are guided by means of sliding members 200 slidingly engaged to a protruding track member 100, the guiding arrangement comprising said sliding members 200 and protruding track member 100. Fig. 3b schematically illustrates a perspective view of a portion of the portion of the guiding arrangement in fig. 3a, showing part of a door section 22 to which a sliding member 200 is pivotably attached, said sliding member 200 being slidingly connected to said protruding track member 100.

Fig. 4 schematically illustrates a side view of a portion of a guiding arrangement with sliding members 200 guiding door sections 22 of a door along an arc-shaped protruding track member 100, according to an aspect of the present disclosure. Fig. 5 schematically illustrates a side view of a sliding member 200 and protruding track member 100 in fig. 4.

Fig. 6a, 7, 8, 9a, 10, 11 , 12a, 13a-b, 14, 15, 16a-b and 17a-b schematically illustrates a top cross-sectional view of different embodiments of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100. The sliding member 200 comprises a sliding member body 220 and at least one sliding element 210, wherein at least one of said at least one sliding element 210 is an integrated part of said sliding member body 220 or a part connected to said sliding member body 220.

According to an aspect of the present disclosure, the sliding member 200 according to the present disclosure, when connected to a door 20 and being slidingly engaged to a protruding track member 100, has a width, e.g. a width W as illustrated e.g. in fig. 5 and fig. 18, having a main direction of extension corresponding to the longitudinal extension of the protruding track member 100.

According to an aspect of the present disclosure, the sliding member 200 according to the present disclosure, when connected to a door 20 and being slidingly engaged to a protruding track member 100, has a length, e.g. a length L as illustrated e.g. in fig. 6a and fig. 18, having a main direction of extension corresponding to the transversal extension of the door 20, i.e. the transversal direction between said first frame section 12 and second frame section 14 of the door operator system S. According to an aspect of the present disclosure, the main direction of extension of the length L of the sliding member 200, when connected to a door 20 and being slidingly engaged to a protruding track member 100, essentially corresponds to, i.e. is parallel to, the axial direction of the axis X2 about which said sliding member 200 is configured to pivot during door operation. According to an aspect of the present disclosure, the sliding member 200, when connected to a door 20 and being slidingly engaged to a protruding track member 100, is configured to be arranged and transversely extend in its length direction between a door side 20a, 20b and a frame section 12, 14.

According to an aspect of the present disclosure, the sliding member 200 according to the present disclosure, when connected to a door 20 and being slidingly engaged to a protruding track member 100, has a height, e.g. height H as illustrated e.g. in fig. 5, 6a and fig. 18, having a main direction of extension essentially orthogonal to the width W and length L1 of said sliding member 200. The height may also be denoted thickness.

The height may vary in the length direction and/or the width direction of the sliding member 200. The width may vary in the length direction and/or the height direction of the sliding member 200. The length may vary in the width direction and/or the height direction of the sliding member 200.

Fig. 6a schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door and being slidingly engaged to a protruding track member 100 being a single track, and fig. 6b schematically illustrates a top cross-sectional view of a portion of fig. 6a with the sliding member 200 slidingly engaged to the protruding track member 100, according to an embodiment of the present disclosure. According to an aspect, the protruding track member 100 in fig. 6a-b is the straight track 110 of the protruding track member 100, and thus, in e.g. fig. 6a, the sliding member 200 is positioned in the vertical part, i.e. being slidingly engaged with the straight track 110 of the protruding track, for vertical guiding of the door during door movement.

Said sliding member 200 is configured to be connected to the door 20 via a hinge member 50. Said hinge member 50 is configured to provide interconnection between door sections 22 of said door 20 for facilitating mutual pivoting of adjacent door sections 22. According to an aspect of the present disclosure, said door sections 22 are hinged with each other by means of hinge members 50. Said door section 22, in this embodiment, comprises an end cap 22E. The hinge member 50 is here attached to said door section 22 via said end cab 22E.

According to an aspect of the present disclosure, the sliding member 200, when connected to a door 20 and being slidingly engaged to a protruding track member 100, is configured to be arranged and transversely extend in its length direction between a door side of the door 20 and a frame section, see e.g. fig. 3a-b, 6a, 7, 8, 9a, 10, 11 , 12a, 13a-b, 14, 15 and 16a-b. According to an aspect of the present disclosure, the sliding member 200, when connected to a door 20 via a hinge member 50 and being slidingly engaged to a protruding track member 100, is configured to be arranged and transversely extend in its length direction between said hinge member 50 and a frame section, see e.g. fig. see e.g. fig. 6a, 7, 8, 9a, 10, 11 , 12a, 13a-b, 14, 15 and 16a-b. The sliding member 200 according to the present disclosure is intended to slidingly engage with protruding track member 100 having a protruding direction which is transversal, i.e. configured to extend in the transversal direction from a frame section towards the opening.

The protruding track member 100 is provided by a single track 100. The sliding member 200 comprises a recess 200R, see also e.g. fig. 5, configured to at least partly surround a portion of said protruding track member 100 when said sliding member 200 is slidingly engaged to said protruding track member 100, as illustrated in fig. 6b.

According to an aspect of the present disclosure, said recess 200R is provided by oppositely arranged sliding elements 210 of said sliding member 200. Thus, according to an aspect of the present disclosure, said sliding member 200 comprises a pair of sliding elements 210 oppositely arranged at a distance so as to provide said recess 200R. According to an aspect of the present disclosure, said pair of sliding elements 210 are integrated portions of said sliding member 200.

According to an aspect of the present disclosure, the respective sliding element 210 has a length, here length L1 , having a main direction of extension corresponding to the main direction of extension of the length L of said sliding member 200.

According to an aspect of the present disclosure, the respective sliding element 210 has a width having a main direction of extension corresponding to the main direction of extension of the width W of said sliding member 200, see e.g. fig. 18.

According to an aspect of the present disclosure, the respective sliding element 210 has an inner side 21 Oi, see e.g. fig. 18. The inner side 21 Oi of one of the sliding elements 210 is configured to face the inner side of the other of the sliding element 210 so that said recess 200R or a part of said recess 200R is formed.

According to an aspect of the present disclosure illustrated in fig. 6a-b, the sliding member 200 is made of a low friction material 21 OF, for example low friction plastic. The low friction plastic material is according to an aspect of the present disclosure ultra-high molecular polyethylene (PE-UHMW). In the embodiment illustrated in fig. 6a-b, said sliding member body 220 is made of a low friction material 21 OF, said sliding elements 210 being an integrated part of said sliding member body 220.

Said sliding member 200 comprises sliding surfaces 210a, 210b made of said low friction material 21 OF. Said sliding surfaces 210a, 210b are surfaces of said recess 200R. Said sliding surfaces 210a, 210b are configured to facilitate sliding of said sliding member 200 relative to said protruding track member 100 when said sliding surfaces 210a, 210b of said track member 200 engage with said protruding track member 100, i.e. contact surfaces of said protruding track member 100, during door movement.

Said recess 200R comprises a first sliding surface 210a and an opposite second sliding surface 210b facing the first sliding surfaces 210a. Said first sliding surface 210a is configured to slidingly engage with a first side of said single protruding track member 100 and said opposite second sliding surface 210b is configured to slidingly engage with an opposite second side of said single protruding track member 100. According to an aspect of the present disclosure, one of said sliding elements 210 comprises said first sliding surface 210a and the other of said sliding elements 210 comprises said second sliding surface 210b. Said first and second sliding surfaces 210a, 210b are configured to be arranged at and be at least parts of said inner side 21 Oi of the respective sliding element 210.

The protruding track member 100 illustrated in fig. 6a-b is configured to run in connection to the first frame section 12, and is configured to protrude from a frame section portion 12p of said first frame section 12. According to this exemplary embodiment, said frame section portion 12p constitutes an integrated portion of said protruding track member 100, where said protruding track member 100 has an L-shape. According to an aspect of the present disclosure, said protruding track member 100 illustrated in fig. 6a-b is the vertical track 110. The sliding member 200, when attached to the door and slidingly engaged to the protruding track member 100, is arranged at a distance D5 from said portion 12p. According to an aspect of the present disclosure, the sliding member 200 has a first side 200-1 , also denoted first end portion 200-1 , and an opposite second side 200-2, also denoted second end portion 200-2, wherein, when attached to the door and slidingly engaged to the protruding track member 100, the first side 200-1 is configured to face towards the portion 12p of said first frame section 12 and the second side 200-2 is configured to face towards the door 20. During normal operation involving door movement between said open and closed position, the sliding member 200 will only slide against said protruding track member 200, and not be in contact with said portion 12p of said first frame section 12, facilitating said sliding and hence door movement. According to an aspect of the present disclosure, the shortest distance between the first side 200-1 and the opposite second end side 200-2 are constitute the length L of said sliding member 200.

According to an aspect of the present disclosure, the sliding member 200, when attached to the door 20 and slidingly engaged to the protruding track member 100, is allowed to transversely move relative to said protruding track member 100 towards and may contact said portion 12p. Such a transversal movement comprises transversal movement of the door 20 so that said sliding member 200 moves towards said portion 12p.

Said sliding member 200 comprises a sliding surface 210c at said first side 200-1 facing said portion 12p. Said sliding surface 210c is made of said low friction material 21 OF. Should said track member 200 engage with said portion 12p of said first frame section 12 from which said protruding track member 100 is protruding, e.g. due to transversal door movement, said sliding surface 210c will contact said portion 12p, i.e. a contact surface of said portion 12p, so that sliding of said sliding member 200 along said frame section 12 is facilitated during door movement. Fig. 7 schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 by means of connection arrangement and being slidingly engaged to a protruding track member, according to an embodiment of the present disclosure. The sliding member and the connection to the door and protruding track member 100 corresponds, according to an aspect to fig. 6a-b.

Said connection arrangement comprises a first joint member J1 and a second joint member J2. The sliding member 200 is attached to the door 20 via said first joint member J1 connected to the door 20 and said second joint member J2 connected to said sliding member 200 and coaxially attached to said first joint member J1 so that said sliding member 200 is allowed to rotate about said axis X2.

Said first joint member J1 is configured to be connected to the door 20 via a hinge member 50. Said hinge member 50 is configured to provide interconnection between door sections 22 of said door 20 for facilitating mutual pivoting of adjacent door sections 22. Said hinge member 50 may further, according to an aspect, be pivotably connected to another hinge member 150 for an adjacent door section.

Said connection arrangement comprises a connection opening 2100 in the sliding member 200. Said connection opening 2100 is configured to face towards the door 20 when the sliding member 200 is attached to the door 20. Said connection opening 2100 is configured to face towards the hinge member 50 when the sliding member 200 is attached to the door 20 via said hinge member 50. Said connection opening 2100 is configured to face away from the protruding track member 100 when the sliding member 200 is attached to the door 20 and slidingly engaged with said protruding track member 100.

Said connection opening 2100 has an axial extension corresponding to the axis X2 about which said sliding member 200 is configured to pivot. The axial direction of said axis X2 is, in fig. 7, not directly towards said door 20, but the wording that said connection opening 2100 is facing said door 20 should be interpreted broadly, i.e. that the connection opening 21 OO faces in the direction where said door 20 is located. Said connection opening 2100 has a circular cross section, having a centre axis corresponding to the axis X2 about which sliding member 200 is configured to pivot.

Said first joint member J1 comprises a first portion J1 a configured to be arranged between the second end portion 200-2 of said sliding member 200, facing said door 20, and said door 20 so as to prevent movement of said sliding member 200 towards said door 20. According to an aspect, said first portion J1a is configured to be arranged between said second end portion 200-2 of said sliding member 200, facing said hinge member 50 connected to said door 20, and said hinge member 50 so as to prevent movement of said sliding member 200 towards said door 20.

Said first portion J1 a is configured to be wider than said connection opening 2100 so that a part of said first portion J1 a faces at least a part of said end portion 200-2 of said sliding member 200 so as to prevent movement of said sliding member 200 towards said door 20.

Said first joint member J1 comprises a tube portion J1 b configured to be closely received within said connection opening 2100. Said connection opening has a circular cross section. Said connection opening 2100 comprises an inner sliding surface 21 Od configured to be in contact with said tube portion J1 b of said first joint member J1 so as to facilitate pivoting of said sliding member 200 about said axis X2. Said inner sliding surface 21 Od of said connection opening 2100 is according to an aspect made of said low friction material 21 OF.

According to an aspect of the present disclosure, a portion J2b of said second joint member J2 is arranged to run within said connection opening 2100 and tube portion J1 b to a space 200S. Said second joint member J2 comprises an end portion J2a arranged within said space so as to prevent movement of said sliding member 200 away from said door 20 in the axial direction relative to said connection opening 2100.

Thus, connection opening 2100, running in the axial direction about which said sliding member 200 is allowed to pivot, within said sliding member 200, from said second end portion 200-2 towards said first end portion 200-1 , wherein said connection opening transfers into said space 200S, said space being wider in the direction orthogonal to said axial extension than the width, i.e. diameter, of said connection opening 2100, wherein said end portion J2b of said second joint member J2 has a width which is wider than the width of said connection opening 21 OO so that an outer portion of said end portion J2b faces a transition portion of the transition from said connection opening 2100 to said space 200S, facilitating said prevention of movement of said sliding member 200 away from said door 20 in the axial direction relative to said connection opening 21 OO. According to an aspect, said space has a circular cross section.

According to an aspect of the present disclosure, illustrated in fig. 7, said connection arrangement comprises a third joint member J3. Said third joint member J3 is arranged and coaxially attached to said first joint member J1 so that said door 20 is connected to said first joint member J1. Said third joint member J3 is, according to the embodiment in fig. 7, connected to said first joint member J1 via said hinge member 50. Said third joint member J3 has a first portion J3a configured to prevent movement away from the door 20, and a second portion J3b configured to provide connection to said first joint member J1 .

According to an aspect of the present disclosure, said first joint member J1 is a nut member J1 with inner threads, said second joint member J2 is a screw member J2 with outer threads configured to engage with said nut member J1 within said connection opening 21 OO and said third joint member J3 is a screw member with outer threads configured to engage with said nut member J1 between said door 20, i.e. said hinge member 50, and said sliding member 200.

According to an aspect of the present disclosure, said end portion J2a of said second joint member J2 is a screw head J2a, and said portion J2b is a threaded screw portion configured to engage with inner threads of said tube portion J1 b of said nut member J1 within said connection opening 2100.

According to an aspect of the present disclosure, said end portion J3a of said third joint member J3 is a screw head J3a, and said second portion J3b is a threaded screw portion configured to engage with inner threads of said first portion J1 a of said nut member J1 between said door 20, i.e. said hinge member 50, and said sliding member 200.

Fig. 8 schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door by means of connection arrangement and being slidingly engaged to a protruding track member, according to an embodiment of the present disclosure.

Fig. 8 differs from fig. 7 only with regard to the connection arrangement. The connection arrangement in fig. 8 differs from the connection arrangement in fig. 7 in that, instead of said third joint member providing connection between door 20 and first joint member J1 via said hinge member 50, the first joint member J1 is attached to the door 20 via the hinge member 50 by direct attachment means 50A, e.g. by means of welding. Thus, in the connection arrangement in fig. 8, the first joint member is attached, e.g. welded, to the hinge member 50.

Fig. 10 schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 being a single track, according to an embodiment of the present disclosure. Fig. 10 differs from fig. 6a in that the protruding track member 100 in fig. 10 is the spiral track 120 of the protruding track member 100, and thus, in e.g. fig. 10, the sliding member 200 is positioned in the spiral part, i.e. being slidingly engaged with the spiral track 120 of the protruding track member 100, for spiral guiding of the door during door movement. According to an aspect of the present disclosure, said frame section portion 12p here constitute a portion of the frame section 12, e.g. a portion of a plate member of the frame section 12, to which said protruding track member 100 is configured to be attached.

Fig. 11 schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 being a single track. In the embodiment illustrated in fig. 11 , said sliding member body 220 is made of a low friction material 21 OF, said sliding elements 210 being an integrated part of said sliding member body 220.

Fig. 11 differs from fig. 6a in that the sliding member body 220 of the sliding member 200 has been reinforced by reinforcement part 230, according to an embodiment of the present disclosure. Said reinforcement part 230 is here a reinforcement part 230 at least partly surrounding the low friction material 21 OF of said sliding member body 220 of the sliding member 200 so as to provide reinforcement to said sliding member 200. Said reinforcement part 230 is according to an aspect made of metal. Said reinforcement part 230 is according to an aspect shaped as a housing for housing said part of said sliding member 200 shaped with said low friction material 21 OF.

Fig. 12a schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 being a single track, and fig. 12b schematically illustrates a top cross-sectional view of a portion of fig. 12a with the sliding member 200 slidingly engaged to the protruding track member 100, according to an embodiment of the present disclosure. Fig. 12a differs from fig. 10 in that the sliding member body 220 is made of another material, e.g. a material facilitating a robust connection to said door and/or a robust configuration for sliding operation, and said at sliding elements 210 are made of a low friction material and are connected to said sliding member body 220.. To the sliding member body 220, sliding elements 210 in the shape of sliding plates 212, 214 are provided and attached so as to form said recess 200R. Said sliding plates are arranged so that said sliding surfaces 210a, 210b of said recess 200R are provided. According to an aspect of the present disclosure, said sliding plates 212, 214 constitute said sliding elements 210 of said sliding member 200.

Fig. 14 schematically illustrates a top cross-sectional view of a sliding member, 200 made of two sliding member parts 200A, 200B, connected to a door 20 and being slidingly engaged to a protruding track member 100 being a single track, according to an embodiment of the present disclosure. The sliding member parts 200A, 200B are configured to be connected to each other by means of one or more joint members J4, e.g. screw members J4. See fig. 18 and 19 for an embodiment of such a two-part sliding member. The sliding member 200 described in e.g. fig. 6a-b, 7, 8 and fig. 10 and 11 may also be made of two sliding member parts.

Fig. 15 schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 with a transmission member T1 connected to the door 20 and configured to be driven so as to move the door, according to an embodiment of the present disclosure.

Said transmission member T1 is connected to the door 20 via a lifting bracket 500. Said lifting bracket 500 is according to an aspect connected to the lower most door section 22 of the door sections 22 of said door 22. There is a corresponding transmission member on the opposite side, not shown. Said transmission member T1 is connected to the lifting bracket 500 via a chain connector 500A and configured to be movable via a guide member 400 so as to move said door 20 between said open and closed position. Said transmission member T1 may e.g. be a chain, a belt or the like. By utilizing a sliding member 200 instead of a roller for guiding the door, a more compact lifting bracket is facilitated, i.e. the width W1 between the lifting bracket and the chain connector in the direction orthogonal to the transversal direction and the vertical direction may be reduced.

Fig. 16a-b schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door and being slidingly engaged to a protruding track member 100 being a single track, according to an embodiment of the present disclosure. Fig. 16a-b differs from fig. 6a-b in that the sliding surfaces 210a, 210b have a convex configuration. Fig. 16b schematically illustrates the top cross-sectional view of fig. 16a with the sliding member 200 slidingly engaged to the protruding track member 100, where the door 20 has been subjected to a force so that the door 20 and hence the sliding member 200 has an angle [3 relative to the protruding direction of said protruding track member 100 according to an embodiment of the present disclosure.

Said first sliding surface 210a and an opposite second sliding surface 210b facing the first sliding surfaces 210a have a convex configuration. According to an aspect of the present disclosure, said sliding surfaces 210a, 210b have an arc-shaped configuration. According to an aspect of the present disclosure, said opposite sliding surfaces 210a, 210b within said recess 200R have a convex configuration so that the distance between said sliding surfaces 210a, 210b at the first side and in the transversal direction of extension of the recess towards the opposite second side 200-2 decreases and is shortest essentially half way and then increases from half way in the direction towards the second side 200-2 until the end of the opposite sliding surfaces 210a, 210b. The transversal extension of said opposite sliding surfaces 210a, 210b corresponds to the protruding direction of said single protruding track member 100. According to an aspect of the present disclosure, said sliding surfaces 210a, 210b have an arced shape, running in the length direction of said opposite sliding elements 210 of said sliding member 200.

All of the embodiments of said sliding member 200 may have sliding surfaces with such a convex, e.g. arc-shaped, configuration.

By thus providing sliding surfaces 210a, 210b having a convex configuration, the risk of clamping during operation of said door operation system, e.g. due to door movement as illustrated in fig. 16b, may be efficiently reduced.

Fig. 9a schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 provided by a pair of tracks 100A, 100B, and fig. 9b schematically illustrates a top cross-sectional view of a portion of fig. 9a with the sliding member 200 slidingly engaged to the protruding track member 100, according to an aspect of the present disclosure.

In the embodiment illustrated in fig. 9a-b, said sliding member body 220 is made of a low friction material 21 OF, said sliding element 210 being an integrated part of said sliding member body 220.

According to the embodiment illustrated in fig. 13a-b, the protruding track member 100, configured to run in connection to the frame section 12, is provided by a pair of protruding tracks 100A, 100B running parallel at a distance D3 from each other. The sliding member 200 comprises a sliding portion 202 configured to be closely received between said pair of protruding tracks 100A, 100B of said protruding track member 100 when said sliding member 200 is slidingly engaged to said protruding track member 100, as illustrated in fig. 13b.

According to an aspect of the present disclosure, the distance D3 between said pair of protruding tracks 100A, 100B of said protruding track member 100 is greater than the width D4 of said sliding portion 202 of said sliding member 200 so that said sliding member 200 is allowed to pivot when said protruding track member 100 slides in an arced path of said protruding track member 100 during door movement.

Said sliding member 200 comprises sliding surfaces 210a, 210b made of said low friction material 21 OF. Said sliding surfaces 210a, 210b are outer sliding surfaces 210a, 210b on opposite sides, said outer sliding surfaces 210a, 210b being configured to face inner sides100i of said protruding tracks 100A, 100B. The outer sliding surface 210a is configured to face an inner side of said protruding track 100A and the outer sliding surface 210b is configured to face an inner side of said protruding track 100B. Said sliding surfaces 210a, 210b are configured to facilitate sliding of said sliding member 200 relative to said protruding track member 100, i.e. relative to said protruding tracks 100A, 100B of said protruding track member 100, when said sliding surfaces 210a, 210b of said track member 200 engage with said protruding track member 100, i.e. contact surfaces of said protruding track member 100, during door movement.

According to an aspect of the present disclosure, said sliding surfaces 210a, 210b in e.g. fig. 9a-b and 13a-b may have a convex configuration for the same purpose, i.e. reduce risk of clamping, as in fig. 16a-b.

The protruding tracks 100A, 100B of said protruding track member 100 illustrated in fig. 13a-b are configured to run in connection to the first frame section 12, and are configured to protrude from a portion 12p of said first frame section 12.

The sliding member 200, when attached to the door and slidingly engaged to the protruding track member 100, i.e. protruding tracks 100A, 100B, is arranged at a distance D5 from said portion 12p. According to an aspect of the present disclosure, the sliding member 200 has a first side 200-1 , also denoted first end portion 200-1 , and an opposite second side 200-2, also denoted second end portion 200-2, wherein, when attached to the door and slidingly engaged to the protruding track member 100, the first side 200-1 is configured to face towards the portion 12p of said first frame section 12 and the second side 200-2 is configured to face towards the door 20. During normal operation involving door movement between said open and closed position, the sliding member 200 will only slide against said protruding track member 200, and not be in contact with said portion 12p of said first frame section 12, facilitating said sliding and hence door movement.

According to an aspect of the present disclosure, the sliding member 200, when attached to the door 20 and slidingly engaged to the protruding track member 100, is allowed to transversely move relative to said protruding track member 100 towards and may contact said portion 12p. Such a transversal movement comprises transversal movement of the door 20 to which said sliding member is connected so that said sliding member 200 moves towards said portion 12p.

Said sliding member 200 comprises a sliding surface 210c at said first side 200-1 facing said portion 12p. Said sliding surface 210c is made of said low friction material 21 OF. Should said track member 200 engage with said portion 12p of said first frame section 12 from which said pair of protruding tracks 100A, 100B are protruding, e.g. due to transversal door movement, said sliding surface 210c will contact said portion 12p, i.e. a contact surface of said portion 12p, so that sliding of said sliding member 200 along said frame section 12 is facilitated during door movement.

According to an aspect of the present disclosure, the sliding member 200 in fig. 9a-b is configured to be connected to the door 20 by means of a connection arrangement essentially corresponding to the connection arrangement in e.g. fig. 7, thus comprising e.g. said first joint member J1 and said connection opening 2100. The sliding member 200 in fig. 9a-b may also be configured to be connected to the door 20 by means of a connection arrangement according to fig. 8. Fig. 13a schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 provided by a pair of tracks 100A, 100B.

Fig. 13a differs from fig. 9a-b in that the sliding member body 220 is made of another material, e.g. a material facilitating a robust connection to said door and/or a robust configuration for sliding operation, and said at sliding element 210 is made of a low friction material and are connected to said sliding member body 220. To this framework shaped sliding member body 220, a sliding element 210 is provided and attached so as to provide said outer sliding surfaces 210a, 210b facing inner sides of said pair of tracks 100A, 100B, and said sliding surface 210c at said first side 200-1 facing said portion 12p. Said sliding element 210 is arranged to surround at least a front portion of said sliding member 200 configured to be slidingly engaged with said protruding track member 100 provided by a pair of tracks 100A, 100B.

Fig. 13b schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door and being slidingly engaged to a protruding track member 100 provided by a pair of tracks 100A, 100B.

Fig. 13b differs from fig. 13a in that, to the framework shaped sliding member body 220, sliding elements 210 in the shape of sliding plates 218, 219 are provided and attached to the sliding member body 220 on the respective sides facing the respective inner side of said pair of tracks 100A, 100B. Said sliding plates 218, 219 are arranged so at to provide said outer sliding surfaces 210a, 210b facing inner sides of said pair of tracks 100A, 100B. Said sliding plates are arranged so at to provide said outer sliding surfaces 210a, 210b are further arranged to that they protrude from the side of the sliding member body 220 facing said portion 12p from which said pair of tracks 100A, 100B protrude, so that they are closer to said portion 12p, the end of the respective sliding plate 218, 219 providing said sliding surface 210c. According to an aspect of the present disclosure, said sliding plates 218, 219 constitute sliding elements 210 of said sliding member 200. According to an aspect of the present disclosure illustrated in fig. 13a-b, the sliding element(s) 210 of said sliding member 200 is made of a low friction material 21 OF, for example low friction plastic. The low friction plastic material is according to an aspect of the present disclosure ultra-high molecular polyethylene (PE-UHMW).

Fig. 17a schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 provided by a pair of tracks 100A, 100B, according to an embodiment of the present disclosure.

Fig. 17a differs from fig. 9a-b by the configuration and shape of the pair of tracks 100A, 100B and the configuration and shape of the sliding member 200.

According to this embodiment, said pair of protruding tracks 100A, 100B of the protruding track member 100, configured to run in connection to the frame section 12, is configured to protrude from a portion 12p of said frame section 12. The sliding member 200, when attached to the door and slidingly engaged to the protruding track member 100, is arranged so that an end portion 200-1 of said sliding member 200 facing said portion 12p is arranged at a distance D5 from said portion 12p.

Said pair of protruding tracks 100A, 100B have end portions 100A1 , 100B1 with end surfaces. According to an aspect, the width or thickness of the respective protruding track 100A, 100B may be required to be greater than in the embodiment in fig. 9a-b in order to provide said end portions 100A1 , 100B1 with end surfaces.

The sliding member 200 has a width D4-1 which is wider than the width D4 providing a protrusion 204, 206 with a contact surface 204a, 206a configured be arranged at a distance D6 from and face the end surface of both of said pair of protruding tracks 100A, 100B. According to an aspect of the present disclosure, the protrusion having the width D4 and having the sliding surfaces 210a, 210b configured to facilitate sliding against inner sides 100i of said pair of protruding tracks 100A, 100B, constitute a sliding element 210.

Said distance D6 is shorter than the distance D5 between the end portion of said sliding member 200 and said portion 12p, so that, should a transversal movement of said track member 200 towards said portion 12p occur, said protrusion will act as a stop so that said contact surface 204a, 206a contacts the end surface of both of said pair of protruding tracks so that sliding of said sliding member 200 along said frame section 12 is facilitated during door movement.

Fig. 17b schematically illustrates a top cross-sectional view of a sliding member 200 connected to a door 20 and being slidingly engaged to a protruding track member 100 provided by a pair of tracks 100A, 100B, according to an embodiment of the present disclosure.

Fig. 17b differs from fig. 17a mainly in that the sliding member 200 only has one protrusion 204. Thus, the sliding member 200 has a width D4-2 which is wider than the width D4 providing a protrusion 204 with a contact surface 204a configured be arranged at a distance D6 from and face the end surface of one of said pair of protruding tracks 100A, 100B.

Said distance D6 is shorter than the distance D5 between the end portion of said sliding member 200 and said portion 12p, so that, should a transversal movement of said track member 200 towards said portion 12p occur, said protrusion 204 will act as a stop so that said contact surface 204acontacts the end surface of one of said pair of protruding tracks 100A, 100B so that sliding of said sliding member 200 along said frame section 12 is facilitated during door movement.

Fig. 5 schematically illustrates a side view of a portion of a guiding arrangement with a sliding member 200 guiding door sections of a door along an arc-shaped protruding track member 100, according to an aspect of the present disclosure. See also fig. 4. The protruding track member 100 is a single protruding track. The arc-shaped protruding track member 100 illustrated in fig. 4 and 5 is according to an aspect a spiral track 120 for guiding said door 20 so that said door 20 may be spirally assembled in the open position.

Fig. 18 schematically illustrates a perspective view of sliding member 200 made of two sliding member parts 200A, 200B assembled together, and, fig. 19 schematically illustrates a perspective view of the sliding member 200 in fig. 18 with the two sliding member parts 200A, 200B disassembled, according to an aspect of the present disclosure. The sliding member 200 in fig. 5 may be any suitable sliding member 200. The sliding member 200 in fig. 5 may be a sliding member 200 made of two sliding member parts 200A, 200B assembled together, e.g. in accordance with fig. 18. The sliding member 200 in fig. 5 may be a sliding member 200 may be a single sliding member 200 made of a low friction material or comprising a low friction material.

As illustrated in e.g. fig. 6b and fig. 18, the sliding member 200 has a first side 200-1 configured, when the sliding member 200 is slidingly engaged to said protruding track member 100, to face towards the portion 12p from which said protruding track member 100 is protruding and an opposite second side 200- 2 configured to face towards the door 20, i.e. towards the hinge member 50 to which said sliding member 200 is intended to be connected.

As illustrated in e.g. fig. 5, fig. 6b and fig. 18, the sliding member 200 has a third side 200-3 configured, when the sliding member 200 is slidingly engaged to said protruding track member 100, to face in a direction orthogonal to the extension of said protruding track member 100 outwardly when the protruding track member curves, and an opposite fourth side 200-4.

As illustrated in e.g. fig. 5 and fig. 18, the sliding member 200 has a fifth side 200-5 configured, when the sliding member 200 is slidingly engaged to said protruding track member 100, to face upwardly in the direction of extension of said protruding track member 100, when the protruding track member runs vertically, and an opposite sixth side 200-6. The sliding member 200 configured to slidingly engage with a protruding track member 100 being a single track comprises a recess 200R configured to at least partly surround a portion of said protruding track member 100 when said sliding member 200 is slidingly engaged to said protruding track member 100, see e.g. fig. 5, fig. 6b and fig. 18.

The recess 200R of the sliding member 200 is configured to extend from the first side 200-1 transversally towards the second side 200-2. According to an aspect of the present disclosure the recess 200R is configured to extend transversally from said first side 200-1 and transfer into a space 200S, as described above e.g. with reference to fig. 7. The space 200S may be such that an end portion of said protruding track member 100 may extend into said space 200S when said sliding member 200 is slidingly engaged to said protruding track member 100. The recess 200R thus has a certain depth for receiving the protruding track member 100. Said recess 200R is configured to extend along the length L of said sliding member 200 from said first side 200- 1 to said space 200S. Said recess 200R is thus configured to extend in the length extension of said sliding member 200. Said recess 200R is configured to extend along the length L1 of said sliding elements 210, see e.g. fig. 6b.

The recess 200R of the sliding member 200 is configured to extend from the fifth side 200-5 to and though the opposite sixth side 200-6 so that, when said sliding member 200 is slidingly engaged to said protruding track member 100, said recess 200R is extending along the longitudinal extension of said protruding track member 100, see e.g. fig. 5. The recess 200R thus has a longitudinal extension. The distance between the fifth side 200-5 and sixth side 200-6 provides a width W, which corresponds to a longitudinal extension portion of said protruding track member 100 with which said sliding member 200 is engaged during door movement. Said recess 200R is thus configured to extend along the width W of said sliding member 200 from one side of said sliding member 200 to the other. Said recess 200R is thus configured to extend in the width extension of said sliding member 200. The width D2 of said recess 200R of said sliding member 200 is wider than the thickness D1 of said protruding track member 100 so that said sliding member 200 is allowed to pivot when said protruding track member 100 slides in an arced path of said protruding track member 100 during door movement, see e.g. fig. 5.

Said recess 200R comprises a central opening 2000 with a width greater than the width D2 of the portion of the recess 200R running from the respective side of said sliding member 200 in the width direction towards said central opening 2000. Said recess 200R in the longitudinal extension has a first longitudinally extending portion extending from the fifth side 200-5 with a width D2 and a second longitudinally extending portion extending from the sixth side 200-6, towards the first longitudinally extending portion, with a width D2, and between said first and second longitudinally extending portions, a central opening 2000. Said central opening 2000 is configured to run centrally from said first side 200-1 transversally towards said second side 200-2. Said central opening 2000 is configured to run centrally from said first side 200-1 in the length extension of said sliding member 200. Said central opening 2000 has an arcshaped cross section. Said longitudinally extending recess 200R provides a straight slot from said fifth side 200-5, transfers into an arced extension in a central part and then back to a straight slot towards and through said sixth side 200-6.

Said recess 200R has opposite inner sides 21 Oi. Said opposite sliding elements 210 of said sliding member 200 has opposite inner sides 21 Oi. The inner side 21 Oi of one of the sliding elements 210 is configured to face the inner side of the other of the sliding element 210 so that said recess 200R or a part of said recess 200R is formed. The respective inner side 21 Oi has a width extension extending along the width W of said sliding member 200 and a length extension extending along the length L1 of the sliding element 210 of the sliding member. The inner sides 21 Oi of a first of the sliding elements 210 has a central arc-shaped slot, e.g. half-pipe, centrally arranged relative to the width W of the sliding member 200 and configured to run in the length direction of the sliding element 210 and further has sliding surfaces 210a running on each side of the arc-shaped slot, e.g. half-pipe, and the inner side 21 Oi of a second of the sliding elements 210, oppositely arranged to, i.e. facing the, inner side 21 Oi of the first sliding element 210, has a corresponding arc-shaped slot facing the arc shaped slot of the first sliding element 210 so that said opening 2000 is provided, and sliding surfaces 210b facing the sliding surfaces 210a of said first sliding element 210.

According to an aspect of the present disclosure, said recess 200R has a wider curved inlet, with opposite curves C1 , C2 at the fifth side 200-5, a wider curved inlet, with opposite curves C3, C4 at the sixth side 200-6, and with opposite curves C5, C6, C7, C8 in connection to the transitions from the first and second longitudinally extending portions to the central opening 2000.

According to an aspect of the present disclosure, as illustrated in e.g. fig. 2a- b, said protruding track members 100, comprises a straight track 110 for straight, e.g. vertical, guiding of said door 20, by means of said sliding members 200, and a curved track 120, e.g. spiral track 120, for guiding said door 20, by means of said sliding members 200. According to an aspect of the present disclosure, said vertical track 110 and spiral track 120 are assembled as separate parts to the frame sections 12, 14, wherein there will be a transition between the vertical track 110 and the spiral track 120. By thus providing said curves C1 , C2, C3, C4, C5, C6, C7, C8 in connection to said recess 200R of the respective sliding member 200, the transition between said vertical track 110 and spiral track 120 for said sliding members 200 slidingly engaged to said protruding track member 100 during door movement between said open position and closed position will be facilitated, e.g. smoother. According to an aspect of the present disclosure, the transition between said vertical track 110 and spiral track 120 is adapted for further facilitating passage of said sliding member 200. According to an aspect of the present disclosure, the end portion of the vertical track 110 facing the end portion of the spiral track 120, providing said transition between said vertical track 110 and spiral track 120, may be adapted by having a slight tapering towards each other.

According to an aspect of the present disclosure, as illustrated in fig. 18 and 19, said sliding member 200 is formed by a first sliding member part 200A and a second sliding member part 200B configured to be attached to said first sliding member part 200A. Said sliding member parts 200A, 200B are shaped such that, when they are attached to each other, said recess 200R is provided. Said sliding member parts 200A, 200B are shaped such that, when they are attached to each other, said recess 200R with said central opening 2000 is provided. According to an aspect of the present disclosure, said first sliding member part 200A and second sliding member part 200B attached to each other forms said sliding member body 220.

Said sliding member 200 is configured to be divided in a plane essentially corresponding to the extension of the recess 200R, so that, when disassembled, said first sliding member part 200A, on the opposite side to the third side 200-3, comprises the sliding surface 210a, and the second sliding member part 200B, on the opposite side to the fourth side 200-4, comprises the sliding surface 210b.

Said first sliding member part 200A, on the opposite side to the third side 200- 3, comprises a half-pipe running from the first side 200-1 to the second side 200-2, said half-pipe comprising a first half-pipe part running from said first side 200-1 towards a centre part, configured to constitute part of said opening 2000 and space 200S, and a second half-pipe part running from said centre part towards said second side 200-2, configured to constitute part of said connection opening 2100, said first half-pipe part being wider than said second half-pipe part.

Said second sliding member part 200B, on the opposite side to the fourth side 200-4, comprises a half-pipe running from the first side 200-1 to the second side 200-2, said half-pipe comprising a first half-pipe part running from said first side 200-1 towards a centre part, configured to constitute part of said opening 2000 and space 200S, and a second half-pipe part running from said centre part towards said second side 200-2, configured to constitute part of said connection opening 2100, said first half-pipe part being wider than said second half-pipe part.

According to an aspect of the present disclosure, said opening 2000, space 200S and connection opening 2100 are coaxially arranged such that, when said sliding member 200 is connected to a door and slidingly engaged to a protruding track member 100, said axis X2 about which said sliding member 200 may be pivoted has an extension corresponding to the axial extension of said coaxially arranged opening 2000, space 200S and connection opening 2100.

Said first sliding member part 200A and second sliding member part 200B are configured to be assembled together by means of joints member J4, J5, see fig. 19.

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 guiding arrangement (A) for a door operator system (S), the door operator system (S) being configured for opening and closing an opening (0), the 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 change of direction of the door (20) during movement between said open position and closed position, wherein 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); a first set of sliding members (200) configured to be distributed along and attached to said door (20) and configured to slidingly engage with said first protruding track member (100); and a second set of sliding members (200) configured to be distributed along and attached to said door (20) and configured to slidingly engage with said second protruding track member (100), wherein the respective sliding member (200) is configured to be pivotably connected to said door (20) so as to facilitate said change of direction of the door (20) when sliding along said protruding track members (100) during door movement between said open position and closed position.

2. The guiding arrangement according to claim 1 , wherein the respective sliding member (200) is rotatably attached to said door (20) about an axis (X2).

3. The guiding arrangement according to claim 1 or 2, wherein the respective sliding member (200) is configured to be attached in connection to interconnections of said interconnected sections to said door (20).

4. The guiding arrangement according to any of claims 1 -3, wherein the first and second protruding track member (100) comprises a straight track (110) for straight guiding of said door (20), by means of said sliding members (200), in connection to said opening (O), and a curved track (120) for guiding said door (20), by means of said sliding members (200), so that said direction change of said door (20) is provided.

5. The guiding arrangement according to claim 4, wherein said curved track (120) of the first and second protruding track member (100) is a spiral track (120) configured to allow the door (20), by means of said pivotably connected sliding members (200), during movement to an open position, to be spirally assembled.

6. The guiding arrangement according to any of claims 1 -5, wherein said first protruding track member (100) is configured to be 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 configured to be 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).

7. The guiding arrangement according to any of claims 1 -6, wherein the respective sliding member (200) comprises or is made of a low friction material (21 OF), for example low friction plastic.

8. The guiding arrangement according to claim 7, wherein the respective sliding member (200) comprises sliding surfaces (210a, 210b), said sliding surfaces (210a, 210b) being configured to facilitate sliding of said sliding member (200) relative to said protruding track member (100) when said sliding surfaces (210a, 210b) of said track member (200) engage with said protruding track member (100) during door movement.

9. The guiding arrangement according to claim 8, wherein said sliding surfaces (210a, 210b) have a convex configuration.

10. The guiding arrangement according to any of claims 7-9, wherein the respective protruding track member (100), configured to run in connection to the respective frame section (12, 14), is configured to protrude from a portion (12p, 14p) of said frame section (12, 14), wherein the respective sliding member (200), when attached to the door and slidingly engaged to the protruding track member (100), is configured to be arranged at a distance (D5) from said portion (12p, 14p).

11. The guiding arrangement according to claim 10, wherein the respective sliding member (200), when attached to the door and slidingly engaged to the protruding track member (100), is allowed to transversely move relative to said protruding track member (100) towards and contact said portion (12p, 14p), wherein said sliding member (200) comprises at least one sliding surface (210c) at an end portion of said sliding member (200) facing said portion (12p, 14p) so that, should said track member (200) engage with said portion (12p, 14p), said sliding surface contacts said portion (12p, 14p) so that sliding of said sliding member (200) along said frame section (12, 14) is facilitated during door movement.

12. The guiding arrangement according to any of claims 1 -11 , further comprising a connection arrangement for facilitating pivotable connection of the respective sliding member (200) to the door, said connection arrangement comprising a first joint member (J1 ) and a second joint member (J2), wherein the respective sliding member (200) is attached to the door (20) via said first joint member (J1 ) connected to the door (20) and said second joint member (J2) connected to said sliding member (200) and coaxially attached to said first joint member (J1 ) so that said sliding member (200) is allowed to rotate about said axis (X2).

13. The guiding arrangement according to claim 12, when claim 12 depends on any of claims 7-11 , wherein said connection arrangement comprises a connection opening (2100) in the respective sliding member (200), said connection opening (2100) being configured to face towards the door (20) when the sliding member (200) is attached to the door (20), wherein said first joint member (J1 ) comprises a tube portion (J1 b) configured to be closely received within said connection opening (2100), said connection opening (2100) comprising an inner sliding surface (21 Od) configured to be in contact with said tube portion (J1 b) of said first joint member (J1 ) so as to facilitate pivoting of said sliding member (200) about said axis (X2).

14. The guiding arrangement according to claim 13, wherein a portion (J2b) of said second joint member (J2) is arranged to run within said connection opening (2100) and tube portion (J1 b) to a space (200S), said second joint member (J2) comprising an end portion (J2a) arranged within said space so as to prevent movement of said sliding member (200) away from said door (20) in the axial direction relative to said connection opening (2100).

15. The guiding arrangement according to any of claims 12-14, wherein a portion (J1 a) of said first joint member (J1 ) is arranged between an end portion of said sliding member (200) facing said door (20) and said door (20) so as to prevent movement of said sliding member (200) towards said door (20).

16. The guiding arrangement according to any of claims 1 -15, wherein the respective protruding track member (100), configured to run in connection to the respective frame section (12, 14), is provided by a single track (100), wherein the respective sliding member (200) comprises a recess (200R) configured to at least partly surround a portion of said protruding track member (100) when said sliding member (200) is slidingly engaged to said protruding track member (100).

17. The guiding arrangement according to claim 16, wherein the width (D2) of said recess (200R) of said sliding member (200) is wider than the thickness (D1 ) of said protruding track member (100) so that said sliding member (200) is allowed to pivot when said sliding member (200) slides in an arced path of said protruding track member (100) during door movement.

18. The guiding arrangement according to claim 16 or 17, wherein said recess (200R) is configured to extend along the width (W1 ) of said sliding member (200) from one side of said sliding member (200) to the other, said extension of the recess (200R), when said sliding member (200) is slidingly engaged to said protruding track member (100), corresponding to the extension of the portion of the protruding track member (100) to which said sliding member (200) is slidingly engaged, said recess (200R) comprising a central opening (2000) with a width greater than the width (D2) of the portion of the recess (200R) running from the respective side (200-5, 200-6) of said sliding member (200) in the width direction towards said central opening (2000).

19. The guiding arrangement according to any of claims 16-18, wherein said sliding member (200) is formed by a first sliding member part (200A) and a second sliding member part (200B) configured to be attached to said first sliding member part (200A), said sliding member parts (200A, 200B) being shaped such that, when they are attached to each other, said recess (200R) is provided.

20. The guiding arrangement according to any of claims 1 -15, wherein the respective protruding track member (100), configured to run in connection to the respective frame section (12, 14), is provided by a pair of protruding tracks (100A, 100B) running parallel at a distance (D3) from each other, wherein the respective sliding member (200) comprises a sliding portion (202) configured to be closely received between said pair of protruding tracks (100A, 100B) of said protruding track member (100) when said sliding member (200) is slidingly engaged to said protruding track member (100).

21 . The guiding arrangement according to claim 20, wherein the distance (D3) between said pair of protruding tracks (100A, 100B) of said protruding track member (100) is greater than the width (D4) of said sliding portion (202) of said sliding member (200) so that said sliding member (200) is allowed to pivot when said protruding track member (100) slides in an arced path of said protruding track member (100) during door movement.

22. The guiding arrangement according to claim 21 , wherein said pair of protruding tracks (100A, 100B) of the respective protruding track member (100), configured to run in connection to the respective frame section (12, 14), is configured to protrude from a portion (12p, 14p) of said frame section (12, 14), wherein the respective sliding member (200), when attached to the door and slidingly engaged to the protruding track member (100), is arranged so that an end portion of said sliding member (200) facing said portion (12p, 14p) is arranged at a distance (D5) from said portion (12p, 14p), wherein said pair of protruding tracks (100A, 100B) have end portions (100A1 , 100B1 ) with end surfaces, wherein the sliding member (200) has a width (D4-1 , D4-2) which is wider than the width (D4) providing a protrusion (204, 206) with a contact surface (204a, 206a) configured be arranged at a distance (D6) from and face the end surface of one or both of said pair of protruding tracks, said distance (D6) being shorter than the distance (D5) between the end portion of said sliding member (200) and said portion (12p, 14p), so that, should a transversal movement of said sliding member (200) towards said portion (12p, 14p) occur, said protrusion will act as a stop so that said contact surface (204a, 206a) contacts the end surface of one or both of said pair of protruding tracks so that sliding of said sliding member (200) along said frame section (12, 14) is facilitated during door movement.

23. The guiding arrangement according to any of claims 1 -22, wherein the respective sliding member (200) comprises a sliding member body (220) and at least one sliding element (210), wherein at least one of said at least one sliding element (210) is an integrated part of said sliding member body (220) or a part connected to said sliding member body (220).

24. The guiding arrangement according to claim 23, wherein said sliding member (200) comprises one or more reinforcement parts (230) configured to be arranged in connection to said sliding member body (220) so as to reinforce said sliding member (200).

25. A sliding member (200) of the guiding arrangement (A) according to any of claims 1 -24.

26. A door operator system (S), the door operator system (S) being configured for opening and closing an opening (O), the 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 change of direction of the door (20) during movement between said open position and closed position; and, a guiding arrangement (A) according to any of claims 1 -24.