Segmented door with sidewalk

Abstract

A segmented door (1) with a sidewalk comprises:-a support structure; -a main door (2) comprising a plurality of panels (3) constrained to the support structure in a movable manner between a closed position and an open position; a pedestrian door (4) defined by one openable portion (5) of each panel (3) hinged to a base portion (6) of the corresponding panel (3); locking means (7) located between the base portion (6) and the openable portion (5) of each panel (3); and-automatic movement means (8) operatively connected to the locking means (7) and configured to automatically move the locking means (7) to the released configuration when the main door (2) is in the closed position and to automatically move the locking means (7) to the locked configuration when the main door (2) is not in the closed position.

Description

Technical Field

[0001] The present invention relates to a sectional door with a walkway.

[0002] Preferably, the sectional door of the invention is intended to be installed where the opening of a garage compartment is located.

[0003] However, it cannot be excluded that the sectional door could be installed where another type of compartment or room would be located. Background Art

[0004] Several types of doors are known, in particular for opening and closing garage compartments.

[0005] The first type is an overhead door, which involves the use of a door leaf that moves relative to a fixed frame via a system of pivot arms, hinges and counterweights.

[0006] Another type is a sectional door, which comprises a door leaf defined by a plurality of horizontal panels arranged in series and hinged to each other by hinges allowing rotation between adjacent panels along respective axes.

[0007] The panels are mounted transversely to a support structure including a pair of vertical posts that allow the sectional door to move between a closed position, in which the panels are in a vertical position to close the compartment opening, and an open position, in which the panels are arranged horizontally to leave the compartment opening open.

[0008] An example of this type of door is described in patent IT 1420181, which describes in particular a sectional door equipped with a walkway.

[0009] A pedestrian door is generally understood to mean a small pedestrian door, smaller in size than a door, intended primarily to allow passage without the need to fully open the door.

[0010] The small pedestrian door shown in patent IT 1420181 is made from a reduced portion of a corresponding segmented door panel.

[0011] These reduced portions, besides being hinged in turn to each other along horizontal axes, are also hinged vertically to the remainder of the corresponding panel to allow a small pedestrian door to be opened relative to the door.

[0012] However, there are different types of sectional doors in which the panels making up the door are released from each other, ie are not hinged or connected to each other.

[0013] In this type of door, the panels are substantially independently connected to the supporting structure and perform different movements to switch between the closed position and the open position.

[0014] These types of sectional doors do present some problems, in particular relating to the fact that a possible small pedestrian door cut into the panel is not supported by the horizontal hinges of the panel, as is the case with the sectional door shown in patent document IT 1420181.

[0015] Therefore, when the panel is arranged obliquely with respect to the vertical direction, ie when the door is displaced from the closed position, gravity acts on the reduced portion, which may cause the small pedestrian door to open accidentally. Summary of the invention

[0016] Therefore, the main object of the present invention is to design a sectional door with a walkway which is capable of avoiding any accidental opening of the small pedestrian door.

[0017] Another object of the present invention is to devise a sectional door with a walkway which makes it possible to overcome the drawbacks of the prior art within the framework of a simple, rational, easy to use and effective as well as economical solution.

[0018] The above-mentioned object is achieved by a sectional door with a walkway having the features of claim 1 . BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features and advantages of the invention will become more apparent from the description of a preferred but non-exclusive embodiment of a sectional door with a walkway, which is illustrated by way of schematic but non-limiting example in the accompanying drawings, in which:

[0020] - Figure 1 is a perspective view and a detailed view of a sectional door in a closed position according to the present invention;

[0021] - Figure 2 and Figure 3 is a perspective and detailed view of a sectional door in an intermediate position during movement between a closed position and an open position;

[0022] - Figure 4 is a detailed view of the locking and moving devices of the sectional door. DETAILED DESCRIPTION

[0023] With particular reference to these drawings, reference numeral 1 denotes a sectional door with a walkway.

[0024] The sectional door 1 is intended to be installed at a location where an entrance A to a room is located, such as a garage compartment, to open / close the entrance A.

[0025] To this end, the sectional door 1 comprises a supporting structure (not shown in the figures) which can be located at the entrance A of the room.

[0026] The sectional door 1 further comprises a main door 2 comprising a plurality of panels 3 which are movably constrained to a support structure between a closed position in which the panels 3 are arranged one on top of another in a substantially vertical position to close the entrance and an open position in which the panels 3 are arranged substantially horizontally to leave the entrance open.

[0027] The main door 2 is thus associated with the support structure in a movable manner between a closed position, in which the panel 3 is lowered to close the entrance A, and an open position, in which the panel 3 is in a raised position and leaves the entrance A open.

[0028] To enable this movement, the support structure comprises, for example, slide rails attached to the room wall.The support structure of the sectional door 1 is known in the prior art and will therefore not be described in detail in the remainder of this specification.

[0029] Figure 1 The main door 2 is shown in a closed position, wherein the panels 3 are arranged substantially vertically, aligned with each other and lying in the same substantially vertical plane.

[0030] on the other hand, Figure 2 and Figure 3 The main door 2 is shown moving from the closed position, and thus two intermediate positions of the main door 2 during the movement of the main door 2 between the closed position and the open position are shown.

[0031] It can be seen from these figures that, in positions other than the closed position, the panel 3 of the main door 2 is arranged inclined relative to the vertical direction.

[0032] Furthermore, the sectional door 1 comprises a pedestrian door 4 which is defined by at least one openable portion 5 of each panel 3 .

[0033] The openable portion 5 is hinged to a base portion 6 of the respective panel 3 in a movably manner between an open position and a closed position.

[0034] The pedestrian door 4 is adapted to close / open an entrance defined in the main door 2. As will be described in detail later in the specification, the pedestrian door 4 is constituted by an openable portion 5 of the panel 3 when the panel 3 is arranged in a closed position.

[0035] Advantageously, the sectional door 1 comprises locking means 7 situated between the base portion 6 and the openable portion 5 of each panel 3 .

[0036] The locking device 7 is movable between a locked configuration and a released configuration.

[0037] In particular, in the locked configuration, the locking device 7 is adapted to lock the openable part 5 to prevent it from moving from the closed position to the open position.

[0038] In the released configuration, the locking means are adapted to unlock the openable part 5 so that it can be moved from the closed position to the open position.

[0039] In practice, the locking device 7 implements a safety system that allows the pedestrian door 4 to be locked in the closed position, preventing the pedestrian door 4 from opening when the panel 3 is in an inclined position relative to the vertical position.

[0040] In fact, in the inclined position, the openable parts 5 are subject to the force of gravity which tends to move them from the closed position to the open position.

[0041] Conveniently, the sectional door 1 comprises automatic movement means 8 operatively connected to the locking means 7 and adapted to automatically move the locking means 7 to the released configuration when the main door 2 is in the closed position and to automatically move the locking means 7 to the locked configuration when the main door 2 is not in the closed position.

[0042] This convenient design prevents the pedestrian door 4 from being accidentally opened when the panel 3 and the openable portion 5 are arranged tilted relative to the vertical direction.

[0043] The automatic moving device 8 automatically operates according to the position of the panel 3, so that when the panel 3 is upright, that is, in the closed position, the pedestrian door 4 is opened, and when the panel 3 is tilted relative to the vertical direction, that is, when they are not in the closed position, the pedestrian door 4 is locked.

[0044] The plurality of panels 3 comprises at least first and second panels 3a, 3b, wherein in the closed position they are arranged adjacent to each other at respective contact edges 9.

[0045] Each panel 3 comprises at least one contact edge 9 which, in the closed position, comes into contact with a contact edge 9 of another adjacent panel 3 , thereby closing the main door 2 .

[0046] from Figure 3 It can be seen that the panels 3 of the main door 2 are separated from each other.

[0047] In the process of switching the main door 2 from the closed position to the open position, the contact edges 9 of the two panels 3a, 3b, or generally the contact edges 9 of two adjacent panels 3, move away from each other; and in the process of switching the main door 2 from the open position to the closed position, the contact edges 9 move closer to each other.

[0048] When the main door 2 moves from the open position to the closed position, the contact edges 9 move closer to each other to contact each other and close the entrance.

[0049] When the main door 2 moves from the closed position to the open position, the contact edges 9 move away from each other by being spaced apart from each other.

[0050] This away / closing movement is like Figure 1 , Figure 2 and Figure 3 Shown in sequence, a first part of the movement of the panel 3 from the closed position to the open position can be seen.

[0051] In the embodiment shown in the figures, the main door 2 comprises a pair of panels 3, namely a first panel and a second panel 3a, 3b.

[0052] According to one or more embodiments, the main door 2 comprises a greater number of panels 3. In this case, the first and second panels 3a, 3b preferably represent a pair of panels adjacent to each other.

[0053] Each contact edge 9 is arranged substantially horizontally.

[0054] Preferably, each panel 3 has a substantially rectangular or square shape with a pair of horizontal edges 9 , 12 opposite each other, at least one of which corresponds to the contact edge 9 , and a pair of vertical edges 10 , 11 opposite each other and located between the pair of horizontal edges 9 , 12 .

[0055] When the main door 2 is in the closed position, the vertical edges 10, 11 are arranged substantially vertically, and when the main door 2 is in the open position, the vertical edges 10, 11 are arranged substantially horizontally.

[0056] In the case where the panel 3 is located between a pair of panels 3 , its two horizontal edges 9 , 12 correspond to the contact edges 9 .

[0057] Furthermore, each panel 3 comprises a respective inner surface 13 which, at least in the closed position, faces the interior of the room.

[0058] Furthermore, each panel 3 comprises an outer surface 14 opposite the inner surface and facing towards the outside of the room, at least in the closed position.

[0059] As can be seen from the figure, each panel 3 has a substantially flat shape.

[0060] In the closed position, the panels 3 are aligned with each other, with their transverse directions being arranged substantially parallel and aligned with each other, ie substantially perpendicular.

[0061] On the other hand, the longitudinal direction of the panel is arranged substantially horizontally.

[0062] The panel 3 comprises a base part 6 to which the openable part 5 is hinged about an axis of rotation substantially parallel to the panel itself.

[0063] Preferably, the axis of rotation is substantially parallel to the transverse direction of the panel 3 and is substantially vertical when the main door 2 is in the closed position.

[0064] In the embodiment shown in the figures, the openable part 5 is arranged substantially in the middle of the base part 6 .

[0065] Specifically, the base portion 6 includes a first portion 6a and an opposite second portion 6b, the openable portion 5 is hinged to the first portion 6a, and the openable portion 5 moves away from / closer to the second portion 6b to switch between the closed position and the open position.

[0066] Preferably, the pedestrian door 4 can be opened toward the interior of the room.

[0067] Each openable part 5 is hinged to the base part 6 by hinge means, which are configured to allow the openable part 5 to be rotated inwardly into the room during switching from the closed position to the open position.

[0068] from Figure 1 It can be seen that in the closed position, the openable part 5 and the base part 6 are aligned in the same plane.

[0069] The pedestrian door 4 includes a peripheral frame 16 having at least one pair of uprights 17 facing each other.

[0070] The uprights 17 extend parallel to each other and are arranged substantially vertically when the main door is in the closed position.

[0071] Each upright 17 comprises a plurality of mutually separated parts 17a, 17b, each of which is arranged on one of the openable parts 5 in such a way that the openable parts are aligned with each other when the main door 2 is in the closed position.

[0072] Furthermore, the perimeter frame 16 comprises a pair of cross beams 18 extending transversely between the two uprights 17 .

[0073] In particular, the cross members 18 are arranged substantially parallel to one another and substantially horizontally.

[0074] Furthermore, the sectional door 1 comprises a counter-frame 19 associated with the base part 6, to which the pedestrian door 4 is connected.

[0075] The secondary frame 19 includes a pair of uprights 15 which are arranged substantially vertically when the main door is in the closed position.

[0076] Similar to the peripheral frame 16 , each upright 15 of the subframe 19 includes a plurality of parts separated from each other, each of which is arranged on one of the panels 3 .

[0077] The peripheral frame 16 is mounted to the sub-frame 19 .

[0078] Specifically, at least one column 17 of the peripheral frame 16 is mounted to one column 15 of the sub-frame 19 .

[0079] Conveniently, the pedestrian door 4 comprises, in addition to the locking means, a handle and latch system 20 of known type.

[0080] like Figure 4 As can be seen in detail in FIG. 1 , the locking device 7 comprises at least one locking element 21 which is connected to one of the base part 6 or the openable part 5 of at least one panel 3 .

[0081] The locking element 21 can be moved along the locking direction V1 between a locking configuration and a release configuration, in which the locking element 21 moves closer to the base part 6 or the other of the openable parts 5 to constrain them together, and in the release configuration, the locking element 21 moves away from the base part 6 or the other of the openable parts 5 to release the latter from each other.

[0082] Specifically, in the locked configuration, the locking element 21 comes to rest against the other of the base part 6 or the openable part 5 to block it.

[0083] In this configuration, the locking element 21 is preferably fitted into a seat made on the other of the base part 6 or the openable part 5 .

[0084] The locking direction V1 is substantially parallel to the transverse direction, ie the horizontal direction.

[0085] Suitably, the locking device 7 comprises at least one sliding seat 22 associated with at least one of the base part 6 or the openable part 5 .

[0086] The sliding seat 22 is configured to accommodate the locking element 21 in a movably manner between a locked configuration and a released configuration.

[0087] Specifically, the sliding seat 22 is configured to allow the locking element 21 to slide along the locking direction V1 .

[0088] Preferably, the sliding seat 22 comprises at least a first extension 22a associated with one of the base part 6 or the openable part 5 and a second extension associated with the other of the base part 6 or the openable part 5 .

[0089] The first extension and the second extension are positioned such that, when the openable part 5 is in the closed position, they are arranged aligned with each other along the locking direction V1 to allow the locking element 21 to slide.

[0090] Preferably, the sliding seat 22 is manufactured partly on the secondary frame 19 and partly on the peripheral frame 16 .

[0091] In the released configuration, the locking element 21 is not fitted in the second extension and is retracted in the first extension 22a. In the locked configuration, the locking element 21 is fitted in the second extension, binding the openable part 5 to the base part 6.

[0092] Preferably, the locking element 21 is in an elongated, pin-like shape.

[0093] In the embodiment shown in the figures, the locking element 21 is connected to the base part 6 and can be moved along a locking direction V1 towards and away from the openable part 5 .

[0094] Suitably, the automatic movement device 8 is configured to switch the movement of the main door 2 from the open position to the closed position and vice versa.

[0095] Specifically, the automatic moving device 8 converts the movement of the main door 2 from the open position to the closed position into the movement of the locking device 7 from the locked configuration to the released configuration.

[0096] Conversely, the automatic moving device 8 converts the movement of the main door 2 from the closed position to the open position into the movement of the locking device 7 from the released configuration to the locked configuration.

[0097] To this end, the automatic moving device 8 is at least partially located between the first and second panels 3a, 3b, close to the contact edge 9, so as to convert the approaching and moving away movements of the contact edge 9 into the movement of the locking device 7 from the locking configuration to the releasing configuration and from the releasing configuration to the locking configuration respectively.

[0098] In practice, the automatic movement means 8 are configured to convert the approaching movement of the contact edge 9 into a movement of the locking means 7 from the locking configuration to the released configuration.

[0099] Conversely, the automatic movement device 8 is configured to convert a moving away movement of the contact edge 9 into a movement of the locking device 7 from the released configuration to the locked configuration.

[0100] Conveniently, the automatic movement means 8 comprise at least one movement assembly 23 associated with at least one panel 3 .

[0101] Such a moving assembly 23 is operatively connected to the locking element 21 so as to move it along the locking direction V1 .

[0102] from Figure 4 As can be seen in FIG. 2 , the moving assembly 23 comprises at least one activation element 24 which is connected to at least one panel 3 in a movably manner along an activation direction V2.

[0103] During the movement between the closed position and the open position, the activation element 24 is moved in the activation direction V2 due to the associated movement of the panel 3 .

[0104] Suitably, the automatic movement device 8 comprises at least one movement transmission system 25 between the activation element 24 and the locking element 21 .

[0105] The motion transmission system 25 is configured to convert a movement of the activation element 24 along the activation direction V2 into a movement of the locking element 21 along the locking direction V1 .

[0106] The activation element 24 moving in the activation direction V2 drives the motion transmission system 25 which in turn operates the locking element 21 to move it in the locking direction V1 .

[0107] Suitably, the activation direction V2 is substantially parallel to the longitudinal direction of the panel 3 .

[0108] The activation direction V2 is transverse to the locking direction V1 .

[0109] When the panel 3 is arranged in the closed position, ie vertically, the activation direction V2 is substantially vertical.

[0110] This arrangement of the activation direction V2 allows the activation element 24 to be moved by means of an approaching / removing movement of the panel 3 .

[0111] As can be seen in the figure, the activation element 24 comprises an abutment surface 26 facing the other panel 3 .

[0112] The abutment surface 26 is adapted to abut against another abutment surface 26 arranged on the other panel 3 to move the activation element 24 in a first manner along the activation direction V2.

[0113] In practice, the abutment surfaces 26 come into contact with one another in order to convert a movement of the panel 3 towards one another into a movement of the activation element 24 along the activation direction V2 .

[0114] Preferably, such engagement between the abutment surfaces 26 is achieved by direct contact therebetween.

[0115] However, it cannot be excluded that engagement may take place by means of additional elements and / or forces operating between the abutment surfaces 26 , such as magnetic forces for example.

[0116] from Figure 4 As can be seen, the activation element 24 has a generally elongated shape and extends between a pair of end portions.

[0117] Preferably, the abutment surface 26 is arranged at one of the ends.

[0118] The automatic moving device 8 comprises a holding body 28 attached to the panel 3 .

[0119] The holding body 28 defines a receiving seat suitable for receiving the activation element 24 in a sliding manner along the activation direction V2 .

[0120] Suitably, the moving assembly 23 comprises an elastic element 29 located between the panel 3 and the activation element 24 .

[0121] The elastic element 29 is configured to exert an elastic force at least partially along the activation direction V2 in a second manner opposite to the first manner.

[0122] Specifically, the elastic element 29 is configured to be elastically deformed when the activation element 24 moves in a first manner, so that it is loaded and exerts an elastic force in an opposite direction.

[0123] With this convenient design, when the main door 2 moves from the open position to the closed position, the activation element 24 moves in the first manner along the activation direction V2 through the pressure exerted by the interaction between the abutting surfaces, causing the elastic element 29 to be elastically deformed.

[0124] On the other hand, when the main door 2 moves from the closed position to the open position, the pressure exerted on the activation element 24 by the engagement of the abutment surface 26 decreases, and the elastic element 29 exerts an elastic force so as to move the activation element 24 in the second manner.

[0125] from Figure 4 It can be seen that one end of the elastic element is attached to the panel 3 , in particular to a stop surface arranged on the panel 3 , and the other end is attached to the end of the activation element 24 .

[0126] This end is opposite to the end at which the abutment surface 26 is arranged.

[0127] Preferably, the elastic element 29 is of spring type.

[0128] Suitably, the motion transfer system 25 is adapted to convert movement of the activation element 24 in a first manner into movement of the locking element 21 from the locked configuration to the released configuration.

[0129] Conversely, the motion transmission system 25 is adapted to convert a movement of the activation element in the second manner into a movement of the locking element 21 from the released configuration to the locked configuration.

[0130] This convenient design allows the resilient element 29 to be used to maintain the locking element 21 in the locked configuration when the main door 2 is not in the closed position.

[0131] Suitably, the motion transmission system 25 comprises a knee link 30 provided with at least one lever 31 articulated to the panel 3 about a first articulation axis X1 .

[0132] The lever 31 is connected to the activating element 24 so as to be driven by the activating element 24 to rotate about the first articulation axis X1 during the movement of the activating element 24 in the activating direction V2 .

[0133] Furthermore, the knee link 30 comprises a connecting rod 32 which is articulated to the lever 31 and the locking element 21 about the second articulation axis X2 and the third articulation axis X3 , respectively.

[0134] The locking direction V1 is substantially parallel to the longitudinal direction of the panel 3, whereas the activation direction V2 is substantially parallel to the transverse direction of the panel.

[0135] The locking direction V1 and the activation direction V2 are perpendicular to each other.

[0136] Specifically, the locking direction V1 and the activation direction V2 are perpendicular to each other and parallel to the panel 3 .

[0137] In order to transmit the movement from the activation element 24 to the locking element 21 , the articulation axes X1 , X2 , X3 of the knee link 30 are perpendicular to the panel 3 .

[0138] The activation element 24 , due to its movement in the activation direction V2 , drives the lever 31 to rotate about the first articulation axis X1 .

[0139] The connecting rod 32 converts the rotation of the lever 31 into a linear movement of the locking element 21 so as to move it in the locking direction V1.

[0140] Conveniently, the lever 31 is connected to the connecting rod 32 at one end and to the activating element 24 at the other end.

[0141] At the end connected to the activation element 24 , ie at its second portion 34 , the lever 31 has a connection element 35 provided with a substantially cam-like shape allowing a linear movement of the activation element 24 to be converted into a rotational movement of the lever 31 .

[0142] Furthermore, the activation element 24 has a recess 36 on which the connecting element 35 is mounted.

[0143] from Figure 4 It can be seen that the lever 31 is substantially in a “V” shape and comprises a first portion 33 and a second portion 34 which are inclined with respect to each other.

[0144] The parts 33 , 34 are connected to one another at an apex and are hinged about a first hinge axis X to the panel 3 .

[0145] The first portion 33 is hinged to the connecting rod 32 , whereas the second portion 34 is connected to the activating element 24 .

[0146] The connecting rod 32 has a substantially linear shape and includes a pair of ends, one end being hinged to the lever 31 and the other end being hinged to the locking member 21 .

[0147] As described above, the pedestrian door 4 is defined by a plurality of openable portions 5 .

[0148] Conveniently, the locking device 7 operates on each openable portion 5. To this end, the locking device 7 comprises a plurality of locking elements 21, each of which is associated with a respective panel 3 of the plurality of panels 3.

[0149] The automatic moving device 8 thus comprises a plurality of moving assemblies 23 , each of which is associated with a respective locking element 21 .

[0150] The locking device 7 comprises at least first and second locking elements 21a, 21b, which are associated with the first and second panels 3a, 3b, respectively.

[0151] The automatic moving device 8 comprises at least first and second moving assemblies 23a, 23b, which are associated with the first and second panels 3a, 3b, respectively.

[0152] The two moving assemblies 23a, 23b are connected to the respective locking elements 21a, 21b.

[0153] Conveniently, the first and second moving assemblies 23a, 23b are configured to operate in cooperation with each other so as to convert movement of the main door 2 from the open position to the closed position into movement of the locking device 7 from the locked configuration to the released configuration, and vice versa.

[0154] In order to perform such a joint operation, the abutment surface 26 of the first moving component 23a and the abutment surface 26 of the second moving component 23b abut against each other during the movement of the main door 2 from the open position to the closed position.

[0155] In fact, the abutment surface 26 of the moving component 23 projects from its corresponding contact edge 9 so as to face the other abutment surface 26 .

[0156] When the main door 2 moves from the open position to the closed position, the abutment surfaces 26 engage with each other to move the corresponding activation element 24 along the corresponding activation direction V2 , thereby compressing the corresponding elastic element 29 .

[0157] Conveniently, at least one abutment surface 26 has a substantially hemispherical shape and the other abutment surface 26 has a substantially flat shape.

[0158] This convenient design makes it possible to create a curved surface that facilitates the abutment between the abutment surfaces 26 during the rotation of one of the panels 3 between the horizontal position and the vertical position, and vice versa.

[0159] Preferably, the abutment surface 26 associated with the upper panel 3 is hemispherical, whereas the abutment surface 26 associated with the lower panel 3 is flat.

[0160] In the embodiment shown in the figures, the locking device 7 comprises a plurality of pairs of locking elements 21 , one pair being associated with each panel 3 .

[0161] One of the pair of locking elements 21 is located between the openable portion 5 and a first portion of the base portion 6 , while the other of the pair of locking elements is located between the openable portion and a second portion of the base portion 6 .

[0162] The automatic moving device 8 thus comprises a plurality of pairs of moving assemblies 23 , one pair being associated with each panel 3 .

[0163] Each set of a pair of moving assemblies 23 is operatively connected to one element of a pair of locking elements 21 .

[0164] In particular, the locking device 7 comprises a pair of first locking elements 21a associated with the first panel 3a and a pair of second locking elements 21b associated with the second panel 3b.

[0165] Thus, the automatic moving device 8 comprises a pair of first moving assemblies 23a associated with the first panel 3a and a pair of second moving assemblies 23b associated with the second panel 3b.

[0166] It has been established in practice that the described invention achieves the intended objects, particular emphasis being placed on the fact that the sectional door according to the invention prevents an unintentional opening of the walkway.

Claims

1. A sectional door (1) with a walkway, comprising: - a supporting structure which can be positioned at the entrance to the room; - a main door (2) comprising at least a plurality of panels (3) movably restrained to the support structure, moving between the following positions: - a closed position, in which the panels (3) are arranged one on top of the other in a substantially vertical position so as to close the access opening, and - an open position, in which the panel (3) is arranged substantially horizontally so that the inlet is open; - a pedestrian door (4) defined by at least one openable portion (5) of each of said panels (3), said openable portion (5) being hinged to a base portion (6) of said respective panel (3) in a movable manner between an open position and a closed position; Characterized in that the sectional door (1) comprises: - locking means (7) located between said base (6) and said openable portion (5) of each said panel (3), said locking means (7) being movable between a locked configuration and a released configuration; and - An automatic moving device (8) operably connected to the locking device (7) and configured to automatically move the locking device (7) to the released configuration when the main door (2) is in the closed position, and to automatically move the locking device (7) to the locked configuration when the main door (2) is not in the closed position.

2. The sectional door (1) according to claim 1, characterized in that The plurality of panels (3) include at least a first panel and a second panel (3a, 3b), wherein in the closed position, the first panel and the second panel are arranged adjacent to each other at respective contact edges (9), wherein the contact edges (9) move closer to each other during switching of the main door (2) from the open position to the closed position, and wherein the contact edges (9) move away from each other during switching of the main door (2) from the closed position to the open position.

3. The sectional door (1) according to claim 2, characterized in that The automatic moving device (8) is at least partially located between the first panel and the second panel (3a, 3b), close to the contact edge (9), so as to convert the approaching and moving away movements of the contact edge into the movement of the locking device (7) from the locking configuration to the releasing configuration and from the releasing configuration to the locking configuration respectively.

4. Sectional door (1) according to one or more of the preceding claims, characterized in that The locking device (7) comprises at least one locking element (21) connected to one of the base part (6) and the openable part (5) of at least one of the panels (3), the locking element (21) being movable along a locking direction (V1) between the following configurations: - the locking configuration, wherein the locking element (21) moves close to the other of the base part (6) or the openable part (5) to constrain the latter to each other, and - the release configuration, wherein the locking element (21) is moved away from the other of the base part (6) or the openable part (5) to release the latter from each other.

5. The sectional door (1) according to claim 4, characterized in that The automatic moving device (8) comprises at least one moving assembly (23) associated with at least one of the panels (3), The moving component (23) comprises: - at least one activation element (24) connected to at least one of said panels (3) in a movable manner along an activation direction (V2); - at least one motion transmission system (25) located between the activation element (24) and the locking element (21) and configured to convert the movement of the activation element (24) along the activation direction (V2) into the movement of the locking element (21) along the locking direction (V1).

6. The sectional door (1) according to claim 5, characterized in that The activation element (24) comprises an abutment surface (26), which faces another panel of the panel (3) and is suitable for abutting against another abutment surface (26) arranged on the other panel (3) so as to move the activation element (24) along the activation direction (V2) in a first manner.

7. The sectional door (1) according to claim 6, characterized in that The moving assembly (23) comprises an elastic element (29) located between the panel (3) and the activation element (24), and the elastic element (28) is configured to apply an elastic force at least partially along the activation direction (V2) in a second manner opposite to the first manner.

8. Sectional door (1) according to one or more of claims 5-7, characterized in that The motion transmission system (25) comprises a knee-shaped connecting rod (30), wherein the knee-shaped connecting rod is provided with at least: - a lever (31) articulated to the panel (3) about a first articulation axis (X1) and connected to the activation element (24) so ​​as to be driven in rotation by the activation element (24) during the movement of the activation element (24) in the activation direction (V2), and - a connecting rod (32) articulated to the lever (31) and the locking element (21) about a second articulation axis (X2) and a third articulation axis (X3), respectively.

9. Sectional door (1) according to one or more of claims 5-8, characterized in that: - said locking device (7) comprises at least a first locking element and a second locking element (21), respectively associated with said first and second panels (3a, 3b); as well as - said automatic moving device (8) comprises at least a first moving assembly and a second moving assembly (23a, 23b), respectively associated with said first and second panels (3).

10. The sectional door (1) according to claim 9, characterized in that During the process of the main door (2) moving from the open position to the closed position, the abutment surfaces (26) of the first movable component (23a) and the second movable component (23b) face each other to abut against each other, and at least one of the abutment surfaces (26) has a substantially hemispherical shape.

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