Slat formed by folding and including profiles with folded edges for engaging the locking element of the slat

Abstract

A slat (1) for a sunshade (100), comprises: a base wall (10) elongated along a longitudinal direction (L) between a first end (10A) and a second end (10B), each configured to connect to a movement mechanism (106) of the sunshade, the base wall (10) comprising an outer surface (101) and an inner surface (102), opposite the outer surface (101); a first projection (11) rising from the inner surface (102); a second projection (12) rising from the inner surface (102) and spaced apart from the first projection (11) along a transverse direction (T), perpendicular to the longitudinal direction (L). The first and second projections (11, 12) are configured to receive and engage a connection element between the slat (1) and the movement mechanism (106) of the sunshade. The first projection (11) and the second projection (12) comprise a respective first layer (111, 121) and a respective second layer (112, 122), placed side-by-side along the transverse direction (T), to form the corresponding first and second projections (11, 12).

Description

[0001] The present invention relates to a slat for a sunshade.

[0002] The slats for a sunshade are devices used to partially or entirely screen the light rays filtering through windows, and it is possible to adjust the brightness level of an internal environment based on their inclination.

[0003] The slats for a sunshade are part of a sunshade apparatus. A sunshade apparatus further comprises a movement mechanism, configured to engage with the slats by means of connection elements, and an actuator to move the slats.

[0004] The sunshade slats are devices which are orientable about an inclination axis, parallel to a longitudinal direction, along which they have their maximum extension. The slats may be oriented between a first limit position (maximum opening position), in which they are parallel and perpendicular to the vertical direction, and a second limit position (closing position), in which they are substantially parallel to each other and parallel to the vertical direction. In the second limit position, the slats are also in mutual contact.

[0005] The slat for a sunshade comprises a base wall extended in a longitudinal direction between a first end and a second end. The base wall of said slat comprises an outer surface and an inner surface. On the respective inner surface, two projections rise along a direction normal to the surface itself. The first and second projections are configured to receive in engagement the connection element between the slat and the movement mechanism. The connection element comprises a pin, which is inserted into the projection, and subsequently is locked by means of a metal clip.

[0006] In this field, the use of slats, also known as sunshade louvers, and of guide systems for said louvers necessary for their movement along a preferential direction is already known. A document showing such a solution is document ITBO20120588A1, to the same Applicant. The system by means of which the louver is connected to the connecting mechanism comprises a first locking element, by means of which the slat is fastened to the first movement element and a second locking element, by means of which the slat is fastened to the second movement element.

[0007] This connection system, although it allows the slats to be connected rapidly with a relatively simple solution, is not flexible. Indeed, the locking elements of this solution may not be coupled or adapted to be coupled to different types of movement elements and are, therefore, not applicable to all types of sunshade equipment.

[0008] A document showing a flexible solution is document EP3237714B1, to the same Applicant. In this case, the louver connected to the connecting mechanism comprises an integrated guide, a movement element, a locking mechanism coupled to the louver guide, configured to assume an inactive state, in which it does not interfere with the movement element, and an active state, in which it interferes at least partially with the movement element to lock it with respect to the slat, and an elastic structure, having a non-interference configuration with the movement element and a second configuration, in which it is operatively active on the movement element to apply a force perpendicular to a contact surface between the louver and the movement element itself, and characterized in that it has an elastic element interposed between the movement element and the locking mechanism positioned in the active position to generate the aforesaid force.

[0009] The slats of the sunshade are made by means of a mechanical extrusion process. Such a production process is an industrial plastic deformation process which allows making a slat with constant section, namely with a single layer.

[0010] However, such a method has disadvantages because it does not allow cutting the slats to size, generating waste, in addition to the fact that it is a relatively energy intensive manufacturing method.

[0011] It is an object of the present invention to make available a slat for a sunshade and a method for making the slat which solve the problems of the background art mentioned above.

[0012] Said object is fully achieved by the folded slat for a sunshade and by the method for making the folded slat for a sunshade, object of the present invention, which is characterized by the content of the claims set forth below.

[0013] According to an aspect of the present description, the present invention provides a slat for a sunshade.

[0014] The slat for a sunshade comprises a base wall. The respective base wall is elongated along a longitudinal direction. The base wall is defined by a first end and by a second end in the longitudinal direction. The base wall is configured to connect to a movement mechanism of the sunshade. The base wall comprises an outer surface. The base wall comprises an inner surface. The respective inner surface is opposite the outer surface.

[0015] The slat for a sunshade comprises a first projection. The respective first projection rises from said inner surface. The first projection is configured to receive a connection element in engagement. The respective connection element connects the slat and the movement mechanism of the sunshade. The slat for a sunshade comprises a second projection. The respective second projection extends from the said inner surface. The second projection is spaced apart from the first projection along a transverse direction. Said transverse direction is perpendicular to the longitudinal direction.

[0016] The second projection is configured to receive in engagement a connection element. The respective connection element connects the slat and the movement mechanism of the sunshade.

[0017] In an embodiment, the first and / or the second projections of the slat comprise a respective first layer and a respective second layer. The first and the second layers are partially spaced apart from each other along the transverse direction. The first and the second layers form the corresponding first and / or second projections.

[0018] The creation of the first and the second projections with respectively a first layer and a second layer, makes it possible to make the slat by folding a flat metal sheet, with the relative advantages that are those of cutting to size without material waste, while maintaining an adequate, sufficient strength of the projection.

[0019] In an embodiment, the first projection of the slat comprises a first end.

[0020] In an embodiment, the first projection of the slat comprises a second end.

[0021] In an embodiment, the first layer and the second layer of the first projection are defined by a coupling wall. The respective coupling wall is folded to define a curved connection, at the respective second end of the first projection.

[0022] In an embodiment, the second projection of the slat comprises a first end. In an embodiment, the second projection of the slat comprises a second end.

[0023] In an embodiment, the first layer and the second layer of the second projection are defined by a coupling wall. The respective coupling wall is folded to define a curved connection, at the respective second end of the second projection.

[0024] Advantageously, the coupling walls and the curved connections of the respective first and second projections make it possible to obtain the slat with a particularly efficient process that does not require welding but exclusively the folding of the metal sheet.

[0025] In an embodiment, the base wall of the slat is made in material continuity. In an embodiment, the coupling walls that define the first and second projections are made in material continuity.

[0026] Advantageously, by making the base wall and of the coupling walls in material continuity makes it possible to reduce material waste during the production process of the slat.

[0027] Advantageously, making the base wall and of the coupling walls in material continuity facilitates and speeds up the production process of the slat.

[0028] Advantageously, making the base wall and the coupling walls in material continuity makes it possible to obtain a sunshade slat with high strength.

[0029] In an embodiment, the first projection of the slat for a sunshade comprises a first portion. The respective first portion is joined to the base wall. The first portion of the first projection is raised along a first elevation direction. The first elevation direction of the first projection rises from the base wall of the slat.

[0030] In an embodiment, the first projection of the slat for a sunshade comprises a curved portion. The respective curved portion is joined to the said first portion of the first projection.

[0031] In an embodiment, the first projection of the slat for a sunshade comprises a second portion. The respective second portion of the first projection extends along a second elevation direction. The second elevation direction of the first projection extends upward from the base wall of the slat. The second portion of the first projection extends between the curved portion and up to the second end of the respective first projection.

[0032] The first elevation direction of the first projection is inclined with respect to the second elevation direction of the first projection.

[0033] In an embodiment, the second projection of the slat for a sunshade comprises a first portion. The respective first portion is joined to the base wall. The first portion of the second projection is elevated along a first elevation direction. The first elevation direction of the second projection rises from the base wall of the slat.

[0034] In an embodiment, the second projection of the slat for a sunshade comprises a curved portion. The respective curved portion is joined to the said first portion of the second projection.

[0035] In an embodiment, the second projection of the slat for a sunshade comprises a second portion. The respective second portion of the second projection extends along a second elevation direction. The second elevation direction of the second projection rises from the base wall of the slat. The second portion of the second projection extends between the curved portion up to the second end of the respective second projection.

[0036] The first elevation direction of the second projection is inclined with respect to the second direction of the second projection.

[0037] Advantageously, the configuration of the respective first and second projections makes it possible to achieve a solid anchoring for the connection element of the sunshade.

[0038] The curved profiles of the first and second projection make it possible to obtain an engagement which is free of sharp edges and, therefore, of strain concentration, increasing its mechanical strength.

[0039] In an embodiment, the first elevation direction of the first projection and the respective second elevation direction of the first projection are mutually inclined. The first elevation direction of the first projection and the respective second elevation direction of the first projection define a first inclination angle.

[0040] According to an embodiment, the first inclination angle is comprised between 15° and 180°.

[0041] According to an embodiment, the first inclination angle is comprised between 15° and 90°.

[0042] According to an embodiment, the first inclination angle is comprised between 90° and 180°.

[0043] According to an embodiment, the first inclination angle is comprised between 30° and 180°.

[0044] According to an embodiment, the first inclination angle is comprised between 45° and 180°.

[0045] According to an embodiment, the first inclination angle is comprised between 110° and 140°.

[0046] In an embodiment, the first elevation direction of the second projection and the respective second elevation direction of the second projection are mutually inclined. The first elevation direction of the second projection and the respective second elevation direction of the second projection define a second inclination angle.

[0047] According to an embodiment, the second inclination angle is between 15° and 180°.

[0048] According to an embodiment, the second inclination angle is between 15° and 90°.

[0049] According to an embodiment, the second inclination angle is between 90° and 180°.

[0050] According to an embodiment, the second inclination angle is between 30° and 180°.

[0051] According to an embodiment, the second inclination angle is between 45° and 180°.

[0052] According to an embodiment, the second inclination angle is between 110° and 140°.

[0053] Embodiments of the slat in which the range of the first and / or of the second inclination angle is between 15° and 180° provide a range of angles in which the solution functions adequately.

[0054] The embodiment of the slat in which the range of the first and / or of the second inclination angle is comprised between 15° and 90° gives an excellent retention of the engagement, at the expense of a greater stress applied on the first and / or on the second projection.

[0055] The embodiment of the slat in which the range of the first and / or of the second inclination angle is between 90° and 180°, a solution in obtained with a less solid engagement but the stresses on the first and / or on the second projection are more contained, to the advantage of the durability of the slat.

[0056] The embodiment of the slat in which the range of the first and / or of the second inclination angle is comprised between 100° and 140° constitutes the best tradeoff between the stresses of the projections and the solidity of the engagement.

[0057] In an embodiment, the first projection of the slat for a sunshade extends along a first projection direction. The respective first projection direction is rectilinear. The first projection direction is inclined with respect to the transverse direction. The inclination between the first projection direction and the transverse direction defines a first engagement angle. The respective first engagement angle is between 15° and 165° respectively.

[0058] In an embodiment, the first projection direction coincides with the first elevation direction of the first projection.

[0059] In an embodiment, the second projection of the slat for a sunshade extends along a second projection direction. The respective second projection direction is rectilinear. The second projection direction is inclined with respect to the transverse direction. The inclination between the second projection direction and the transverse direction defines a second gripping angle. The respective second gripping angle is respectively comprised between 15° and 165°.

[0060] In an embodiment, the second projection direction coincides with the first elevation direction of the second projection.

[0061] Advantageously, the claimed values of the first gripping angle and of the second gripping angle give an excellent tradeoff between ease of manufacture, mechanical resistance and stability of the coupling.

[0062] In an embodiment, the first gripping angle and the second gripping angle are comprised between 0° and 90°.

[0063] The present embodiment makes it possible to create a groove between the first and second projections. The respective groove makes it possible to insert and longitudinally extract the respective connection element.

[0064] Advantageously, insertion and longitudinal extraction of the connection element allows the locking of the connection element without the aid of a locking element, e.g. a metal clip.

[0065] In an embodiment, the first gripping angle and the second gripping angle are between 90° and 180°.

[0066] The present embodiment allows the insertion and extraction of the connection element in a direction normal to the slat.

[0067] The respective connection element is inserted into the groove which is formed between the first and the second projections.

[0068] Advantageously, the insertion and extraction of the connection element in a direction normal to the slat may require locking of the connection element with the aid of a locking element, e.g., a metal clip.

[0069] In an embodiment, the slat for a sunshade comprises different transverse portions. The slat for a sunshade comprises a flat transverse portion. The respective flat transverse portion comprises a first transverse end. The flat transverse portion comprises a second transverse end. The first projection is comprised in the flat transverse portion. The second projection is comprised in the flat transverse portion.

[0070] The slat for a sunshade comprises a first inclined portion. The respective first inclined portion is inclined with respect to the flat transverse portion. The first inclined portion comprises a first transverse end. The first inclined portion comprises a second transverse end. The respective second transverse end is connected to the first transverse end of the flat transverse portion.

[0071] The slat for a sunshade comprises a second inclined portion. The respective second inclined portion is inclined with respect to the flat transverse portion. The second inclined portion comprises a first transverse end. The second inclined portion comprises a second transverse end. The respective second transverse end is connected to the second transverse end of the flat transverse portion.

[0072] According to a further embodiment, the slat for a sunshade comprises a second flat transverse portion. The second flat portion comprises a first transverse end. The respective first transverse end is connected to the second transverse end of the second inclined portion. The second flat portion comprises a second transverse end.

[0073] In an embodiment, at the respective first transverse end of the first inclined portion a first curl is present.

[0074] In an embodiment, at the respective second transverse end of the second inclined portion a second curl is present.

[0075] In a further embodiment, at the respective second transverse end of the second flat portion a second curl is present.

[0076] Advantageously, the first and second curl create a stable interlocking between consecutive slats.

[0077] In an embodiment, the sunshade comprises a plurality of slats. The respective plurality of slats is configured to be moved in an adjustment direction. The respective adjustment direction is perpendicular to the longitudinal direction. The adjustment direction is perpendicular to the transverse direction. The plurality of slats is configured to be fixed with respect to a movement in the longitudinal direction.

[0078] In this embodiment, the sunshade comprises a movement mechanism. The respective movement mechanism is configured to transmit a movement to said plurality of slats. The transmission of movement to the plurality of slats occurs along an adjustment direction.

[0079] In this embodiment, the sunshade comprises a plurality of connection elements. Said plurality of connection elements is configured so as to connect respectively said plurality of slats to said movement mechanism. The single connection element comprises a pin.

[0080] In this embodiment, the sunshade comprises an actuator. The respective actuator is associated with said movement mechanism to move it.

[0081] According to an aspect of the present description, the present invention also provides a mechanical processing method for making the folded slat for a sunshade.

[0082] The method for making the folded slat comprises a step of arranging a flat slat on the dedicated machine. The respective flat slat is elongated along a longitudinal direction. The flat slat is defined by a first end in the longitudinal direction. The flat slat is defined by a second end in the longitudinal direction. The flat slat comprises an inner surface. The flat slat comprises an outer surface.

[0083] The method for making the folded slat comprises a first step of folding the flat slat. The respective first folding occurs at a first transverse folding position. The first folding forms the first projection. The first projection rises out of the slat inner surface. The first projection includes a first layer. The first projection includes a second layer. The respective first layer and the respective second layer are placed side-by-side along a transverse direction. The respective transverse direction is perpendicular to the longitudinal direction.

[0084] The method for making of the folded slat comprises a second step of folding of the flat slat. The respective second folding occurs at a second transverse folding position. The respective second transverse folding position is spaced apart from the first transverse folding position along the transverse direction. The second folding of the slat forms the second projection. The second projection rises exiting from the slat inner surface. The second projection includes a first layer. The second projection includes a second layer. The respective first layer and the respective second layer are placed side-by-side along the transverse direction.

[0085] Advantageously, the method for making a folded slat reduces production scrap.

[0086] Advantageously, the method for making a folded slat optimizes the process of mechanical processing of the slat itself.

[0087] Advantageously, the method for making a folded slat facilitates and speeds up the process of mechanical processing of the slat itself. Advantageously, the method for making a folded slat makes it possible to achieve an engagement between the slat and the connection element, which is highly resistant.

[0088] In an embodiment, the method for making a folded slat comprises a step of cutting of a continuous metal sheet coil. The respective continuous metal sheet coil is cut to size to obtain a solid slat. The flat sheet-metal is cut transversely to obtain a predetermined longitudinal length.

[0089] Advantageously, the step of cutting for making a flat slat allows reducing the material waste.

[0090] This and other features will be more apparent from the following description of a preferred embodiment, shown merely by way of nonlimiting example in the accompanying drawings, in which: figure 1 shows a view of a sunshade; figure 2 shows a view of a folded slat for a sunshade; figure 3 shows a side view of a folded slat for a sunshade; figure 3A shows a side view of the first curl of the folded slat for a sunshade; figure 3B shows a side view of the first projection of the folded slat for a sunshade; figure 3C shows a side view of the second projection of the folded slat for a sunshade; figure 3D shows a side view of the second curl of the folded slat for a sunshade; figure 4 shows a side view of the folded slat for a sunshade in a further embodiment; figure 5 shows a side view of the folded slat for a sunshade in a further embodiment; figure 6 shows a side view of a continuous metal sheet coil used in the method of making a folded slat for a sunshade; figure 6A shows a side view of a flat sheet for making a folded slat for a sunshade; figure 6B shows a first step of folding of the flat sheet for making a folded slat for a sunshade; figure 6C shows a second step of folding of the flat sheet for making a folded slat for a sunshade; figure 7 shows a view of a continuous sheet-metal coil used in the method for making a folded slat for a sunshade; figure 7A shows a view of a flat sheet for making a folded slat for a sunshade; figure 7B shows a first step of folding the flat sheet for making a folded slat for a sunshade; figure 7C shows a second step of folding the flat sheet for making a folded slat for a sunshade;

[0091] In the present description, reference numeral 1 has been used to indicate overall a folded slat for a sunshade, hereinafter referred to for simplicity as "folded slat 1".

[0092] The sunshade 100 comprises a plurality of slats 105, a movement mechanism 106, a plurality of connection elements 103 and an actuator 104.

[0093] The plurality of slats 105 is connected to the sunshade 100 by means of the plurality of connection elements 103. The plurality of connection elements 103 is, in turn, connected to the movement mechanism 106.

[0094] The plurality of slats 105 is configured to be moved in an adjustment direction R perpendicular to a longitudinal direction L and to a transverse direction T, respectively. The plurality of slats 105 is configured to be fixed with respect to movement in the longitudinal direction L.

[0095] The plurality of connection elements 103 is configured so as to connect the plurality of slats 105 to the movement mechanism 106, respectively.

[0096] The movement mechanism 106 is configured to transmit a movement to the plurality of slats 105. The transmission of movement to the plurality of slats 105 occurs along the adjustment direction R.

[0097] The actuator 104 is connected to the movement mechanism 106 to move it.

[0098] The folded slat 1 comprises a base wall 10 elongated along a longitudinal direction L. The base wall 10 is defined by a first end 10A and by a second end 10B in the longitudinal direction L. The base wall 10 comprises an outer surface 101 and an inner surface 102. The respective inner surface 102 is opposite the outer surface 101. The inner surface 102 of the base wall 10 comprises a first projection 11 and a second projection 12. The first projection 11 and second projection 12 extend from said inner surface 102 along a normal direction N respectively perpendicular to the longitudinal direction L. The second projection 12 is spaced apart from the first projection 11 along the transverse direction T perpendicular to the longitudinal direction L and to the normal direction N, respectively.

[0099] The first projection 11 and the second projection 12 are configured to receive in engagement a connection element of the plurality of connection elements 103.

[0100] In an embodiment, the folded slat 1 comprises a flat transverse portion 21, a first inclined portion 31, and a second inclined portion 32.

[0101] The flat transverse portion 21 comprises a first transverse end 211 and a second transverse end 212. The first projection 11 and the second projection 12 are included in the flat transverse portion 21.

[0102] The first inclined portion 31 is inclined with respect to the flat transverse portion 21. The first inclined portion 31 comprises a first transverse end 311 and a second transverse end 312. The second transverse end 312 is connected to the first transverse end 211 of the flat transverse portion 21. The second inclined portion 32 is inclined with respect to the flat transverse portion 21. The second inclined portion 32 comprises a first transverse end 321 and a second transverse end 322. The second transverse end 322 is connected to the second transverse end 212 of the flat transverse portion 21.

[0103] According to a further embodiment, the folded slat 1 comprises a second flat transverse portion 22. The second flat transverse portion 22 comprises a first transverse end 221 and a second transverse end 222. The first transverse end 221 is connected to the second transverse end 322 of the second inclined portion 32.

[0104] In an embodiment, the first projection 11 comprises a first end 11A and a second end 11B. The first projection 11 comprises a first layer 111 and a second layer 112, which are partially spaced apart from each other along the transverse direction T.

[0105] In an embodiment, the first layer 111 and the second layer 112 at the first end 11A are partially spaced apart along the direction T.

[0106] In an embodiment, the first layer 111 and the second layer 112 at the first end 11A are superimposed along the direction T.

[0107] In an embodiment, the first layer 111 and the second layer 112 at the second end 11B are superimposed.

[0108] In an embodiment, the first layer 111 and the second layer 112 are defined by a coupling wall 100A. The coupling wall 100A is folded to define a curved connection R1, at the second end 11B.

[0109] In an embodiment, the first projection 11 comprises a first portion 113 joined to the base wall 10. The first portion 113 comprises both the first layer 111 and the second layer 112. The first portion 113 extends along a first elevation direction DE11. The first elevation direction DE11 rises from the base wall 10.

[0110] In an embodiment, the first projection 11 comprises a curved portion 114 joined to the first portion 113. The curved portion 114 comprises both the first layer 111 and the second layer 112.

[0111] In an embodiment, the first projection 11 comprises a second portion 115 joined to the curved portion 114. The second portion 115 comprises both the first layer 111 and the second layer 112. The second portion 115 extends from the curved portion 114 to the second end 11B. The second portion 115 extends along a second elevation direction DE21. The second elevation direction DE21 rises from the base wall 10. The second elevation direction DE21 and the first elevation direction DE11 are respectively inclined to define a first inclination angle β.

[0112] According to an embodiment, the first inclination angle β is comprised between 15° and 180°.

[0113] According to an embodiment, the first inclination angle β is comprised between 15° and 90°.

[0114] According to an embodiment, the first inclination angle β is comprised between 90° and 180°.

[0115] According to an embodiment, the first inclination angle β is comprised between 30° and 180°.

[0116] According to an embodiment, the first inclination angle β is comprised between 45° and 180°.

[0117] According to an embodiment, the first inclination angle β is comprised between 110° and 140°.

[0118] In an embodiment, the second projection 12 comprises a first end 12A and a second end 12B. The second projection 12 comprises a first layer 121 and a second layer 122, which are partially spaced apart from each other along the transverse direction T.

[0119] In an embodiment, the first layer 121 and the second layer 122 at the first end 12A are partially spaced apart along the direction T.

[0120] In an embodiment, the first layer 121 and the second layer 122 at the first end 12A are superimposed along the direction T.

[0121] In an embodiment, the first layer 121 and the second layer 122 at the second end 12B are superimposed.

[0122] In an embodiment, the first layer 121 and the second layer 122 are defined by a coupling wall 100A. The coupling wall 100A is folded to define a curved connection R2, at the second end 12B.

[0123] In an embodiment, the second projection 12 comprises a first portion 123 joined to the base wall 10. The first portion 123 comprises both the first layer 121 and the second layer 122. The first portion 123 extends along a first elevation direction DE12. The first elevation direction DE12 rises from the base wall 10.

[0124] In an embodiment, the second projection 12 comprises a curved portion 124 joined to the first portion 123. The curved portion 124 comprises both the first layer 121 and the second layer 122.

[0125] In an embodiment, the second projection 12 comprises a second portion 125 joined to the curved portion 124. The second portion 125 comprises both the first layer 121 and the second layer 122. The second portion 125 extends from the curved portion 124 to the second end 12B. The second portion 125 extends along a second elevation direction DE22. The second elevation direction DE22 rises from the base wall 10. The second elevation direction DE22 and the first elevation direction DE12 are respectively inclined to define a second inclination angle γ.

[0126] According to an embodiment, the second inclination angle γ is comprised between 15° and 180°.

[0127] According to an embodiment, the second inclination angle γ is comprised between 15° and 90°.

[0128] According to an embodiment, the second inclination angle γ is comprised between 90° and 180°.

[0129] According to an embodiment, the second inclination angle γ is comprised between 30° and 180°.

[0130] According to an embodiment, the second inclination angle γ is comprised between 45° and 180°.

[0131] According to an embodiment, the second inclination angle γ is comprised between 110° and 140°.

[0132] Advantageously, the first inclination angle β and the second inclination angle γ define the tradeoff between the stresses of the projections 11, 12 and the solidity of the anchoring.

[0133] In an embodiment, the folded slat 1 comprises a first curl A1. The first curl A1 is located at the first transverse end 311 of the first inclined portion 31. In an embodiment, the folded slat 1 comprises a second curl A2.

[0134] In an embodiment, the second curl A2 is located at the second transverse end 222 of the second flat transverse portion 22.

[0135] In an embodiment, the second curl A2 is located at the second transverse end 322 of the second inclined portion 32.

[0136] In an embodiment, the first projection 11 extends along a first projection direction DP1. The first projection direction DP1 is rectilinear and inclined with respect to the transverse direction T.

[0137] In an embodiment, the first projection direction DP1 coincides with the first elevation direction DE11 of the first projection 11.

[0138] The inclination between the first projection direction DP1 and the transverse direction T defines a first gripping angle α.

[0139] In an embodiment, the first gripping angle α is between 0° and 90° respectively.

[0140] In an embodiment, the first gripping angle α is between 90° and 180° respectively.

[0141] In an embodiment, the second projection 12 extends along a second projection direction DP2. The second projection direction DP2 is rectilinear and inclined with respect to the transverse direction T.

[0142] In an embodiment, the second projection direction DP2 coincides with the first elevation direction DE12 of the second projection 12.

[0143] The inclination between the second projection direction DP2 and the transverse direction T defines a second gripping angle θ.

[0144] In an embodiment, the second gripping angle θ is respectively comprised between 0° and 90°.

[0145] In an embodiment, the second gripping angle θ is respectively comprised between 90° and 180°.

[0146] In an embodiment, the first projection 11 and the second projection 12 define a groove S.

[0147] In an embodiment, the groove S allows insertion and extraction in the longitudinal direction L of a connection element of the plurality of connection elements 103.

[0148] Advantageously, the insertion and extraction mode of a connection element of the plurality of connection elements 103 into the groove S in the longitudinal direction L allows the locking of the connection element without the aid of a locking element, e.g. e a metal clip.

[0149] In an embodiment, the groove S allows the insertion and extraction in the normal direction N of a connection element of the plurality of connection elements 103.

[0150] Advantageously, the insertion and extraction mode of a connection element of the plurality of connection elements 103 into the groove S in the normal direction N may require locking the connection element with the aid of a locking element, e.g., a metal clip.

[0151] In an embodiment, a continuous metal sheet coil 200 is transversely cut to size to obtain a solid slat 2. The flat slat 2 is elongated along a longitudinal direction L and is defined by a first end 20A and by a second end 20B. The flat slat 2 comprises an inner surface 402 and an outer surface 401.

[0152] In an embodiment, the mechanical method for making the folded slat 1 comprises a first step of folding of the flat slat 2. The first step of folding occurs at a first transverse folding position 201. The first step of folding forms the first projection 11, which rises out of the inner surface 402 of the slat.

[0153] In an embodiment, the first projection 11 formed in the flat slat 2 is equivalent to the first projection 11 present in the folded slat 1, therefore reference is made to the previously illustrated embodiments for a detailed description of the features related to the first projection 11.

[0154] In an embodiment, the mechanical method for making the folded slat 1 comprises a second step of folding of the flat slat 2. The second step of folding occurs at a second transverse folding position 202. The respective second transverse folding position 202 is spaced apart from the first transverse folding position 201 along the transverse direction T. The second step of folding forms the second projection 12 which rises exiting from the inner surface 402 of the slat.

[0155] In an embodiment, the second projection 12 formed in the flat slat 2 is equivalent to the second projection 12 present in the folded slat 1, therefore reference is made to the embodiments previously illustrated for a detailed description of the features related to the second projection 12 According to an embodiment, at the end of the second step of folding the slat, the inner surface 402 and the outer surface 401 of the flat slat 2 coincide with the respective inner surface 102 and the respective outer surface 101 of the folded slat 1.

[0156] Advantageously, the method for making a folded slat 1 reduces production waste.

[0157] Advantageously, the method for making a folded slat 1 optimizes, facilitates and speeds up the process of mechanically processing the slat itself.

[0158] Advantageously, the method for making a folded slat 1 makes it possible to achieve a very strong engagement between the slat and the connection element.

Claims

1. A slat (1) for a sunshade (100), comprising: - a base wall (10) elongated along a longitudinal direction (L) between a first end (10A) and a second end (10B), each configured to connect to a movement mechanism (106) of the sunshade, the base wall (10) comprising an outer surface (101) and an inner surface (102), opposite the outer surface (101); - a first projection (11) rising from the inner surface (102); - a second projection (12) rising from the inner surface (102) and spaced apart from the first projection (11) along a transverse direction (T), perpendicular to the longitudinal direction (L); the first and second projections (11, 12) being configured to receive and engage a connection element between the slat (1) and the movement mechanism (106) of the sunshade, characterized in that the first projection (11) and the second projection (12) comprise a respective first layer (111, 121) and a respective second layer (112, 122), placed side-by-side each other along the transverse direction (T), to form the corresponding first and second projections (11, 12).

2. A slat (1) according to claim 1, wherein the first and second projections (11, 12) comprise a respective first end (11A, 12A) and a respective second end (11B, 12B), wherein each of said first layer (111, 121) and second layer (112, 122) is defined by a respective coupling wall (100A, 100B), folded to define a curved junction (R1, R2) at the respective second end (11B, 12B) of the first and second projections (11, 12).

3. A slat (1) according to claim 2, wherein the base wall (10) and the coupling walls (100A, 100B) are made in material continuity.

4. A slat (1) according to any one of the preceding claims, wherein each of said first and second projections (11, 12) comprises: - a first portion (113, 123), connected to the base wall (10) and rising along a respective first elevation direction (DE11, DE12); - a curved portion (114, 124), connected to the first portion (113, 123); - a second portion (115, 125), extending along a respective second elevation direction (DE21, DE22) between the curved portion (114, 124) up to the second end (11B, 12B) of the respective first and second projections (11, 12); wherein the first elevation direction (DE11, DE12) is inclined with respect to the corresponding second elevation direction (DE21, DE22).

5. A slat (1) according to claim 4, wherein the first and second elevation directions (DE11, DE21) of the first projection (11) are inclined to each other to define a first inclination angle (β) comprised between 15° and 180°.

6. A slat (1) according to claim 4 or 5, wherein the first and second elevation directions (DE12, DE22) of the second projection (12) are inclined with respect to each other to define a second inclination angle (γ) comprised between 15° and 180°.

7. A slat (1) according to any one of the preceding claims, wherein the first projection (11) extends along a respective first projection direction (DP1), rectilinear and inclined with respect to the transverse direction (T), to define a first gripping angle (α), comprised between 15° and 165° respectively, and wherein the second projection (12) extends along a respective second projection direction (DP2), rectilinear and inclined with respect to the transverse direction (T), to define a second gripping angle (θ), comprised between 15° and 165° respectively.

8. A slat (1) according to claim 7, wherein the first gripping angle (α) and the second gripping angle (θ) are comprised between 0 and 90°.

9. A slat (1) according to claim 7, wherein the first gripping angle (α) and the second gripping angle (θ) are comprised between 90 and 180°.

10. A slat (1) according to any one of the preceding claims, comprising: - a flat transverse portion (21), including a first transverse end (211) and a second transverse end (212); - a first inclined portion (31), including a respective first transverse end (311) and second transverse end (312), connected to the first transverse end (211) of the flat transverse portion (21) and inclined with respect to the flat transverse portion (21), - a second inclined portion (32), including a respective first transverse end (321) and second transverse end (322), connected to the second transverse end (212) of the flat transverse portion (21) and inclined with respect to the flat transverse portion (21).

11. A slat (1) according to claim 10, wherein the first transverse end (311) of the first inclined portion (31) includes a first curl (A1), and wherein the second transverse end (322) of the second inclined portion (32) includes a second curl (A2).

12. A sunshade (100) comprising: - a plurality of slats (105), according to any one of the preceding claims, configured to be moved along an adjustment direction (R); - a movement mechanism (106), configured to transmit a movement along the adjustment direction (R) to the plurality of slats (105); - a plurality of connection elements (103), each configured to connect a respective slat of said plurality to the movement mechanism (106); - an actuator (104), associated with the movement mechanism (106) to move it; wherein the adjustment direction (R) is perpendicular both to the longitudinal direction (L) and the transverse direction (T), respectively.

13. A method for producing a slat (1), comprising the following steps: - preparing a flat metal sheet (2), elongated mainly along a longitudinal direction, comprising an inner surface (402) and an outer surface (401); - first folding of the flat metal sheet (2), at a first transverse folding position (201), to form a first projection (11), rising out of the inner surface (402), including a first layer (111) and a second layer (112), placed side-by-side along a transverse direction (T), perpendicular to the longitudinal direction (L), - second folding of the flat metal sheet (2), at a second transverse folding position (202), spaced apart from the first transverse folding position (201), along the transverse direction (T) to form a second projection (12), rising out of the inner surface (402) and including a first layer (121) and a second layer (122), placed side-by-side along the transverse direction (T).

14. A method according to claim 13, wherein the flat metal sheet (2) is a continuous metal sheet coil (200), and wherein the method comprises a step of cutting to size the flat metal sheet (2), wherein the sheet is transversely cut to obtain a predetermined longitudinal length.

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