Assembly comprising a base and a screen, and method for mounting a screen onto a base

Abstract

An assembly comprises a base (20) and a screen (10). This assembly includes a locking member (30) configured to move, relative to the base (20) and relative to the screen (10), between a first position, in which the locking member (30) allows relative movement of the screen (10) and the base (20), and a second position (shown as a dashed line in the diagram), in which the locking member (30) holds the screen (10) and the base (20) together. The assembly is further configured to hold the locking member (30) in the second position by means of an attractive force exerted by a permanent magnet (26). Diagram for diagram: Figure 1

Description

Title of the invention: Assembly comprising a base and a screen, and method for mounting a screen on a base. Technical field of the invention

[0001] The present invention relates to the technical field of mounting removable screens.

[0002] It relates in particular to an assembly comprising a base and a screen, as well as a method of mounting a screen on a base. State of the art

[0003] Assembly solutions for a screen and a base are known in which the screen and the base are held in an assembled position by means of a locking clip or by magnetism acting between the screen and the base. The screen is a device configured to provide an electronic visual display.

[0004] An example of such an assembly is illustrated in Figures 6 and 7.

[0005] In this example, the screen 510 has a longitudinal groove 512 intended to accommodate a guide element 522 formed on the base 520. The cooperation between the guide element 522 and the longitudinal groove 512 makes it possible to establish a sliding connection when the screen 510 is brought closer to the base 520 and the guide element 522 is inserted into the longitudinal groove 512.

[0006] During the translational movement permitted by this sliding connection, a rear wall 516 of the screen 510 spreads apart (in its position illustrated in dotted lines in [Fig.7]) an elastic tab 524 carrying a lug 526 (forming a retaining clip as explained below), which allows the translational movement up to a stop.

[0007] The rear wall 516 has a slight indentation defining an edge 514 perpendicular to the rear wall 516 and situated so that, when the screen 510 comes to rest on the base 520 as indicated above, the elastic tab 524 returns to the rest position and the lug 526 cooperates with the edge 514 so as to retain the screen 510 in its assembled position on the base 520.

[0008] In order to simplify the mounting of the screen on the base, it is generally proposed that the screen be brought into its assembled position on the base by a simple movement of the screen relative to the base and that the retaining means are put in place automatically upon arrival in the assembled position, hence the choice of the techniques mentioned above (locking clip, reciprocal magnetization).

[0009] The dimensioning of such restraint means is, however, quite delicate since the force exerted by the restraint means must be sufficient to guarantee the position assembled without making it too difficult to remove the retaining means when the user wants to separate the screen from the base. Presentation of the invention

[0010] In this context, the present invention proposes an assembly comprising a base and a screen, said assembly comprising a locking member configured to move, relative to the base and relative to the screen, between a first position, in which the locking member allows relative movement of the screen and the base, and a second position, in which the locking member holds the screen and the base together, the assembly being configured to maintain the locking member in the second position under the effect of an attractive force exerted by a permanent magnet.

[0011] Such a locking device thus allows, depending on its position, either to ensure the retention of the screen on the base in an assembled position, or to allow the disassembly of the assembly by permitting a relative movement of the screen and the base.

[0012] The locking member is furthermore held in its position of retaining the screen on the base by simple means, which also allow easy movement of the locking member from the second position to the first position when it is desired to allow relative movement of the screen and the base to disassemble the assembly.

[0013] The locking member can, for example, be movably mounted on the screen, or alternatively on the base, and then be held in contact with the base, or alternatively with the screen, by the effect of said attractive force. In other words, in some embodiments, the locking member can be movably mounted on the screen and held in contact with the base by the effect of said attractive force. In other embodiments, the locking member can be movably mounted on the base and held in contact with the screen by the effect of said attractive force.

[0014] According to other conceivable features, the locking member can be movably mounted on the screen, or alternatively on the base, and can then cooperate in the second position with a locking relief carried by the base, or alternatively by the screen. In other words, in some embodiments, the locking member can be movably mounted on the screen and can cooperate in the second position with a locking relief carried by the base. In other embodiments, the locking member can be movably mounted on the base and can cooperate in the second position with a locking relief carried by the screen.

[0015] The locking relief is for example a locking notch or other suitable surface, for example a side face of a protruding stud.

[0016] It can then be foreseen, for example, that the retaining force exerted by the locking member on the locking relief is orthogonal to the attractive force exerted by the permanent magnet.

[0017] In some embodiments, the base and the screen are shaped to cooperate by allowing relative movement along a one-degree-of-freedom joint (such as a sliding joint or a pivot joint).

[0018] In this case, the locking member can be configured to eliminate said degree of freedom in the second position. A part of the locking member can, for example, come to abut against a corresponding part (such as the aforementioned locking relief) of the screen or the base.

[0019] The base and the screen are configured for example to move relative to each other (for example by being in contact with each other) until they reach an assembled position.

[0020] As will be apparent from certain examples described below, the assembly can then be configured to allow movement of the locking member from the first position to the second position under the effect of said attractive force when the base and the screen are in the assembled position.

[0021] The locking member is thus moved from the first position to the second position under the effect of this attractive force (and therefore without the need for user intervention) as soon as the base and the screen reach the assembled position.

[0022] According to another conceivable possibility, the assembly is configured so that the relative movement of the base and the screen to the assembled position places the locking member in its second position.

[0023] In this case, the locking mechanism is directly in its locked position as soon as the base and the screen reach the assembled position, without the user needing to perform any other manipulation.

[0024] The assembly may also include means for limiting the movement of the locking member relative to the base or the screen. This makes it possible, in particular, to prevent the locking member from adopting unnecessary, potentially inconvenient positions.

[0025] In some embodiments, the locking member is mounted to rotate freely on the base or on the screen between the first position and the second position.

[0026] In other embodiments, the locking member is mounted movable in translation on the base or screen between the first position and the second position.

[0027] The invention also proposes a method for mounting a screen on a base, comprising the following steps:

[0028] - positioning of the screen relative to the base in an assembled position;

[0029] - movement of a locking member to a position in which The locking mechanism is held by an attractive force exerted by a permanent magnet and retains the screen and base in the assembled position.

[0030] According to one possibility, this movement of the locking member is carried out under the effect of said attractive force.

[0031] According to another possibility, the screen and the base are brought into the assembled position by a relative displacement which places the locking member in its position of retaining the screen on the base in the assembled position.

[0032] Of course, the various features, variants, and embodiments of the invention can be combined in various ways, provided they are not incompatible or mutually exclusive. Detailed description of the invention

[0033] In addition, various other features of the invention become apparent from the attached description made with reference to the drawings which illustrate non-limiting embodiments of the invention and where:

[0034] [Fig. 1] represents a first example of a screen-base assembly conforming to the teachings of the invention;

[0035] [Fig.2] represents a second example of a screen-base assembly conforming to the teachings of the invention;

[0036] [Fig.3] represents a third example of a screen-base assembly conforming to the teachings of the invention;

[0037] [Fig.4] schematically represents a fourth example of assembling a screen and a base according to the teachings of the invention, in a relative position of the screen and the base;

[0038] [Fig.5] schematically represents the fourth example of assembly in another relative position of the screen and the base;

[0039] [Fig.6] represents a screen and base assembly as proposed in the prior art; and

[0040] [Fig.7] represents the whole of [Fig.6] in assembled position.

[0041] Several possible embodiments are now described for an assembly comprising a screen and a base.

[0042] Such an assembly can be used in association with a cycle, for example a pedal-assisted cycle such as a pedal-assisted bicycle (commonly referred to as an "electrically assisted bicycle").

[0043] Alternatively, such an assembly could be used with another type of vehicle, such as a moped or a motorcycle.

[0044] The screen has a display surface designed to display information relating to the operation of the vehicle (for example, the instantaneous speed of the vehicle and / or odometer), as well as possibly other information (e.g. time and / or date).

[0045] When the vehicle is powered at least in part by an electric motor (as is the case for a pedal-assisted cycle), information relating to the operation of the vehicle includes, for example, a state of charge of the battery supplying this electric motor.

[0046] The screen may further include a control interface. Such a control interface may include at least one control button (such as a power button) and / or touch sensors in the case of a touchscreen. The control interface may, in some cases, allow control of the screen itself (for example, selecting a display configuration) and / or control of certain vehicle functions (for example, controlling the degree of pedal assistance provided by the electric motor in the case of a pedal-assisted cycle).

[0047] Fig. 1 represents a first example of such an assembly comprising a screen 10 and a base 20.

[0048] The screen 10 comprises a first main face (or front face) 12 comprising the display surface and a second main face 14 (or rear face) opposite the first main face 12 (and here parallel to the first main face 12).

[0049] The assembly of [Fig.1] further includes a flap 30 forming a locking element for the screen 10 and the base 20 in an assembled position, as explained below.

[0050] The flap 30 is made of ferromagnetic material, for example steel.

[0051] As can be seen in [Fig.1], the flap 30 is mounted movable in rotation on the screen 10 between a first position, in which the flap 30 extends parallel to (and here in contact with) the second main face 14, and a second position (represented in dotted lines in [Fig.1]), in which the flap 30 is inclined relative to the second main face 14.

[0052] The second main face 14 also includes a recess 16 within which extends a beam 18 (the beam 18 being for example fixed to two lateral edges, not shown, of the recess 16).

[0053] The flap 30 has a free end 32 located opposite the axis of rotation of the flap 30, and includes a flat part 33 which extends between the axis of rotation and the free end 32, and an arm 34 which extends at least in part between the beam 18 and a bottom wall 17 of the recess 16.

[0054] The beam 18 thus forms a stop for the shutter 30 in its rotational movement (which limits the travel of the shutter 30, here to a movement between its first and second positions). Specifically, the arm 34 of the shutter 30 comes in contact with the beam 18 when the shutter 30 is in its second position whereas, in the example described above, the arm 34 of the shutter 30 extends along the bottom wall 17 of the recess 16 when the shutter 30 is in its first position.

[0055] The base 20 has a recess 22 designed to accommodate a portion of the flap 30 (here the flat portion 33), as explained below. An edge of this recess 22 defines a locking notch 24 against which the free end 32 comes into contact when the base 20 and the screen 10 are assembled, the flap 30 being in its second position.

[0056] The base 20 carries a permanent magnet 26 in a region located opposite the flap 30 (here of the flat part 33) when the base 20 and the screen 10 are assembled, here at the level of the recess 22.

[0057] For mounting the screen 10 in the base 20, the screen 10 is moved relative to the base 20, here according to a translational movement (schematized by the arrow T in [Fig.1]) made possible by a sliding connection between the screen 10 and the base 20 (the screen 10 and the base 20 being shaped to allow this sliding connection, for example in practice thanks to the cooperation of ribs provided on the screen 10 with respective grooves of the base 20, as illustrated in the figures 6 and 7 already described).

[0058] This movement (here, translation) occurs until the screen 10 and the base 20 are assembled (where the screen 10 comes to rest against the base 20 in the direction and sense of translation T). In this assembled position, the second main face 14 faces the base 20 (specifically, here, the face of the base 20 with the recess 22).

[0059] During the translational movement, the locking notch 24 is in contact with the flat part 33 of the flap 30 so that the flap 30 is in its first position. In other words, during the translational movement, the base 20 (here the locking notch 24) holds the flap 30 in its first position (preventing its rotational movement to its second position).

[0060] On the other hand, when the screen 10 and the base 20 are in the assembled position (i.e. at the end of the aforementioned translational movement T), the flat part 33 is located opposite the recess 22 so that the attractive force exerted by the permanent magnet 26 on the flap 30 drives the flap 30 (here by rotation) towards and up to its second position, where the flat part 33 of the flap 30 is in contact with the bottom of the recess 22 (and, here, with the permanent magnet 26).

[0061] The free end 32 of the flap 30 is then opposite (and here in contact with) the locking notch 24 which thus forms a stop for the screen 10 - flap 30 assembly according to the direction of the translation T (in the opposite direction to this translation T).

[0062] In the present example, as is clear from the preceding explanation, the passage of the flap 30 from its first position (in which the screen 10 and the base 20 can be moved relative to each other) to its second locking position of the The assembled position is achieved under the effect of the attractive force exerted by the permanent magnet 26, without user intervention, which simplifies the handling when mounting the screen 10 on the base 20.

[0063] The attractive force exerted by the permanent magnet 26 maintains the flap 30 in its second position, in which the flap 30 retains the screen 10 in its assembled position relative to the base 20 (the flap 30 forming here, as explained above, a stop in the direction of the relative movement between the screen 10 and the base 20 allowed by the sliding connection between the screen 10 and the base 20).

[0064] The assembled position of the screen 10 and the base 20 is therefore locked by means of the flap 30.

[0065] In this situation, the holding force exerted by the flap 30 on the locking notch 24 is therefore orthogonal to the attractive force exerted by the permanent magnet 26 on the flap 30. This makes it possible to dimension these two forces independently during the design and thus to guarantee good retention of the screen 10 on the base 20 without making it difficult to remove the screen 10 from the base 20.

[0066] In this regard, for the dismantling of the screen 10 relative to the base 20, the user moves the flap 30 (here by action on the arm 34) from its second position to its first position, by exerting a force against the force of attraction exerted by the permanent magnet 26 on the flap 30.

[0067] In its first position, the flap 30 no longer interferes with the locking notch 24 and thus allows a relative movement of the screen 10 and the base 20, here according to a translational movement (in the opposite direction to the arrow T shown on [Fig.1]) until it allows a separation of the screen 10 and the base 20 (out of the aforementioned sliding connection between the screen 10 and the base 20).

[0068] Fig. 2 represents a second example of an assembly comprising a screen 110 and a base 120.

[0069] In this second example, the screen 110 comprises a first main face (or front face) 112 comprising the display surface and a second main face 114 (or rear face) opposite the first main face 112 (and here parallel to the first main face 112).

[0070] The second main face 114 has a recess 116, one edge of which defines a locking notch 117, used as explained later.

[0071] The screen 110 also includes a permanent magnet 118 located at the recess 116 (the permanent magnet 118 being flush here with the bottom surface of the recess 116).

[0072] The assembly of [Fig.2] further includes a flap 130 forming a locking element for the screen 110 and the base 120 in an assembled position, as explained below.

[0073] The flap 130 is made of ferromagnetic material, for example steel.

[0074] The flap 130 comprises three parts (each being generally flat in shape):

[0075] - a locking part 132;

[0076] - a connecting part 134; and

[0077] - a gripping part 136.

[0078] The locking part 132 is connected to the gripping part 136 via the connecting part 134. Specifically here, the locking part 132 is connected to the connecting part 134 by a first angled part and / or the gripping part 136 is connected to the connecting part 134 by a second angled part.

[0079] In the example described, the locking part 132 and the gripping part 136 extend parallel to each other, and each extends perpendicularly to the connecting part 134.

[0080] The base 120 has a housing 122, formed here in the face of the base 120 facing the screen 110 in the assembled position of the screen 110 and the base 120, this housing 122 being intended to accommodate the locking part 132 of the flap 130 in at least one relative position of the flap 130 and the base 120.

[0081] As can be seen in [Fig.2], in the assembled position of the screen 110 and the base 120, the second main face 114 of the screen 110 faces the base 120, the recess 116 being further located opposite the housing 122.

[0082] The base 120 also includes a through opening 124 leading on one side into the housing 122 and on the other side into the face of the base 120 opposite to the face containing the housing 122.

[0083] The through opening 124 accommodates the connecting part 134 of the shutter 130 and is configured (due to its extension being less than that of the connecting part 134) to allow translational movement of the shutter 130 between a first position, in which the locking part 132 of the shutter 130 extends into the housing 122, and a second position (represented in dotted lines on [Fig.2]), in which the locking part 132 of the shutter 130 protrudes out of the housing 122 and then extends, if the screen 110 and the base 120 are assembled, into the recess 116.

[0084] Thus, in this second position, the locking part 132 comes into contact with the locking notch 117 so as to retain the screen 110 relative to the base 120.

[0085] The flap 130 is also held in this second position by the force of attraction exerted by the permanent magnet 118 on the flap 130 (specifically here on the locking part 132).

[0086] In the assembled position of the screen 110 and the base 120, the translational movement of the flap 130 relative to the base 120 (and consequently relative to the screen 110) is made in a direction perpendicular to the first main face 112 and / or to the second main face 114 of the screen 110.

[0087] Thanks to the shape of the flap 130 described above (and the configuration of the base 120 on which the flap 130 is mounted), the translational movement of the flap 130 relative to the base 120 is limited:

[0088] - in one direction, through the contact of the locking part 132 and the base 120 (specifically here by the contact of the locking part 132 and the bottom surface of the housing 122, that is to say that the wall forming the housing 122 forms a stop for the shutter 130);

[0089] - in the opposite direction, by the contact of the gripping part 136 and the base 130 (specifically here by the contact of the gripping part 136 and a part 126 of the face opposite the housing 122, this part thus forming another stop for the shutter 130).

[0090] The base 120 and the screen 110 are shaped (for example by means of ribs on one of the elements cooperating with grooves on the other element, as illustrated in Figures 6 and 7) so that they can be placed in contact with each other while allowing relative movement along a sliding joint (along the direction T' illustrated by an arrow in [Fig.2]).

[0091] To mount the screen 110 onto the base 120, these two elements are engaged in this sliding joint, and then the screen 110 is moved relative to the base 120 according to the translational movement T' permitted by this sliding joint until the assembled position of the screen 110 and the base 120 is reached (position shown in [Fig. 2]). The translational movement T' is, for example, stopped in the assembled position by means of a stop (not shown).

[0092] During this translational movement, the flap 130 is in its first position and the locking part 132 of the flap 130 is therefore located in the housing 122 and does not protrude from the face of the base 120 facing the screen 110 (so as not to hinder this translational movement and to allow the relative movement between the screen 110 and the base 120 leading these two elements into their assembled position).

[0093] When the base 120 and the screen 110 arrive in their assembled position (following the aforementioned translational movement), the recess 116 is located opposite the housing 122 and the flap 130 can therefore move towards the screen 110 under the effect of the attractive force exerted by the permanent magnet 118 on the flap 130 (here on the locking part 132 of the flap 130), the locking part 132 coming out of the housing 122 to reach the recess 116.

[0094] The movement of the flap 130 under the effect of the attractive force exerted by the permanent magnet 118 continues until the locking part 132 of the flap 130 come into contact with the screen 110 (specifically here in contact with the bottom surface of the recess 116) and, here, in contact with the permanent magnet 118.

[0095] The flap 130 thus arrives in its second position (locking position) without user intervention.

[0096] The attractive force exerted by the permanent magnet 118 then holds the flap 130 in its second position, the locking part 132 being located in the recess 116 and thus in contact with the locking notch 117 so as to form a stop for the screen 110 in the opposite direction to the arrow T' and to retain the screen 110 in its assembled position relative to the base 120.

[0097] As with the first embodiment, the holding force exerted by the flap 130 (here precisely by the locking part 132) on the locking notch 117 is orthogonal to the attractive force exerted by the permanent magnet 118 on the flap 130 (here precisely on the locking part 132), which makes it possible to obtain both a solid locking and easy disassembly, as explained above.

[0098] For the dismantling of the screen 110 relative to the base 120, the user exerts on the gripping part 136 of the flap 130 a force opposite to the force exerted by the permanent magnet 118 on the flap 130 so as to move the flap 130 from its second position to its first position, in which the locking part 132 is located in the housing 122 (without protruding from the face of the base 120 turned towards the screen 110) and thus allows the movement of the screen 110 relative to the base 120 in a translational movement in the opposite direction to the arrow T' shown in [Fig.2], which allows the separation of the screen 110 and the base 120.

[0099] Fig. 3 represents a third example of an assembly comprising a screen 210 and a base 220.

[0100] In this third example, the screen 210 comprises a first main face (or front face) 212 comprising the display surface and a second main face 214 (or rear face) opposite the first main face 212 (and here parallel to the first main face 112).

[0101] The screen 210 also includes a side wall 213 connecting the first main face 212 and the second main face 214, and forming part of the edge of the screen 210.

[0102] Furthermore, in this third example, the base 220 defines a recess designed to receive at least part of the screen 210 and of which a bottom wall 222 is in contact with the second main face 214 when the screen 210 and the base 220 are assembled as shown in [Fig.3].

[0103] The screen 210 has a side wall 236 opposite the side wall 213. The side wall 236 forms another part of the edge of the screen 210. The side wall 236 is provided with a domed protrusion 238.

[0104] The base 220 has at the bottom wall 222 a shoulder with a cavity 240. The cavity 240 is configured to receive the domed protrusion 238.

[0105] The cooperation of form between the convex protrusion 238 and the cavity 240 allows a relative rotational movement between the screen 210 and the base 220.

[0106] In the example described, the screen 210 and the base 220 further include means for ensuring (here by complementary shape) the correct positioning of the screen 210 relative to the base 220 in their assembled position. For example, a lug 215 protrudes from the second main face 214 so as to cooperate with a recess 223 formed in the back wall 222 when the screen 210 and the base 220 are in the assembled position.

[0107] The screen 210 also carries a permanent magnet 216 at the level of the side wall 213, that is to say here at the level of the side wall 213 opposite the side wall 236 carrying the domed protrusion 238.

[0108] The assembly of [Fig. 3] also includes a flap 230 rotatably mounted on the base 220 and forming a locking element as explained below. The flap 230 is here made of a ferromagnetic material (for example, steel).

[0109] The base 220 includes a wall 224 (inclined relative to the side wall 213 carrying the permanent magnet 216 when the screen 210 and the base 220 are in the assembled position) which limits the rotational movement of the flap 230 away from the screen 210 (when the screen 210 and the base 220 are assembled).

[0110] When the shutter 230 is in a first position (represented in dotted lines on the [Fig.3]) in which the shutter 230 is against the wall 224, it does not interact with the screen 210 when the screen 210 is positioned in the recess of the base 220, the second main face 214 being in contact with the back wall 222.

[0111] Thus, when the flap 230 is in its first position (in contact with the wall 224), the screen 210 can be positioned by the user in its assembled position relative to the base 220 (shown in [Fig. 3]), in particular here by means of a rotational movement of the screen 210 relative to the base 220 (this rotational movement occurring until the assembled position of the screen 210 and the base 220 is reached in which the second main face 214 is in contact with the back wall 222). In this assembled position of the screen 210 and the base 220, the lug 215 is positioned in the recess 223.

[0112] The flap 230 can then be moved by rotation (towards the screen 210) to a second position in which an edge 232 of a window formed in the flap 230 cooperates with a locking notch 218 protruding from the side wall 213 carrying the permanent magnet 216, so as to retain the screen 210 in its assembled position relative to the base 220, here because the edge 232 of the window formed in the flap 230 rests on the locking notch 218 and therefore prevents movement of rotation of screen 210 relative to base 220 which would move screen 210 away from base 220.

[0113] The movement of the flap 230 from its first position to its second position can be carried out by the user. However, in some embodiments, the attractive force of the permanent magnet 216 may be sufficient to move the flap 230 from the first position to the second position when the screen 210 reaches its assembled position relative to the base 220, in which case user intervention is not required to lock the assembly of the screen 210 and the base 220 using the flap 230.

[0114] In the example described, as seen in [Fig.3], when the flap 230 is in the second position, part of the flap 230 is in contact with the side wall 213 of the screen 210 and, here, in contact with the permanent magnet 216.

[0115] The flap 230 is held in the second position by the attractive force exerted by the permanent magnet 216. As indicated above, in the described example, the flap 230 is in contact with the permanent magnet 216 in the second position. However, alternatively, the permanent magnet 216 could be separated from the flap 230 by a partition (for example, an outer wall of the screen 210) in the second position of the flap 230, which would also allow the flap 230 to be held in the second position (in which the flap 230 locks the assembled position of the screen 210 and the base 220) by the attractive force exerted by the permanent magnet 216 on the flap 230.

[0116] As explained above, the edge 232 of the window formed in the flap 230 retains the locking notch 218 to prevent the screen 210 from rotating relative to the base 220 (rotation otherwise permitted by the cavity 240 formed in the base 220 and the complementary convex protrusion 238 formed in the screen 210). The retaining force exerted by this edge 232 on the locking notch 218 therefore extends here along the plane of the side wall 213 (and perpendicular to the first main face 212 and / or the second main face 212) and is thus orthogonal to the attractive force exerted by the permanent magnet 216 on the flap 230 (specifically on the part of the flap 230 in contact with the side wall 213).

[0117] As explained previously, this makes it possible to decouple the force which holds the assembled screen-base together and the force required to separate them (here by moving the flap 230 away from the screen 210 and therefore from the permanent magnet 216 as explained now).

[0118] The flap 230 includes a gripping part 234 which here includes a free end of the flap 230 and extends at least partly away from the screen 210 when the flap 230 is in the second position.

[0119] The user can thus exert force on this gripping part 234 opposite to the attractive force exerted by the permanent magnet 216 on the flap 230, until the flap 230 is brought into the first position (here, for example, in contact with the wall 224). As explained above, in the first position of the flap 230, the screen 210 can be moved relative to the base 220 (here by rotation in the opposite direction to the rotation used to bring the screen 210 into the assembled position relative to the base 220) so as to leave the assembled position, which allows the screen 210 and the base 220 to be separated.

[0120] Figures 4 and 5 schematically represent a fourth example of assembling a screen and a base.

[0121] In this example, the screen 310 has (for example on its rear face opposite its front face bearing the display surface) protruding studs 312 intended to cooperate respectively with grooves 322 formed in the base 320. Preferably, the protruding studs 312 and the grooves 322 form annular sectors respectively.

[0122] The grooves 322, in the form of annular sectors, extend over certain parts of a ring around a mounting axis (axis perpendicular to the plane of Figures 4 and 5). The protruding studs 312 are dimensioned to be inserted into one of the grooves 322, each occupying only a part of the groove.

[0123] The protruding studs 312 and the grooves 322 are shaped to allow rotational guidance of the screen 310 relative to the base 320 around the aforementioned mounting axis.

[0124] In the position illustrated in [Fig.4], the user can bring the screen 310 closer to the base 320 (according to a translational movement along the mounting axis), which at a certain time causes the protruding studs 312 to be inserted into the grooves 322.

[0125] Once the protruding studs 312 are against the bottom of the grooves 322, the user can rotate (according to the arrow R shown in [Fig.4]) the screen 310 (relative to the base 320) around the mounting axis (thanks to the guidance made possible by the cooperation of the protruding studs 312 and the grooves 322) to an assembled position shown in [Fig.5] (defined for example here by cooperation of at least one protruding stud 312 with an end wall 323 of the corresponding groove 322).

[0126] The axis of rotation of the screen 310 (relative to the base 320) allowing it to reach the assembled position is therefore here perpendicular to the face of the base 320 facing the rear face of the screen 310, that is to say perpendicular to each of the main faces (front face bearing the display surface and rear face) of the screen 310 during rotation and in the assembled position.

[0127] In the assembled position shown in [Fig. 5], axial immobilization means (not shown, for example a finger formed on the base 320) coming progressively engage in a complementary housing of the screen 310 during the rotation movement R) prevent the relative movement of the screen 310 and the base 320 in translation along the mounting axis.

[0128] The assembly shown in Figures 4 and 5 comprises a latch 330 rotatably mounted on the base 320 about an axis parallel to the aforementioned mounting axis. The latch 330 has a locking notch 332.

[0129] In the example described, the latch 330 comprises a mounting part 334 (carrying the axis of rotation relative to the base), a gripping part 336 and a central part 338 connecting the mounting part 334 and the gripping part 336. The central part 338 here carries the locking notch 332.

[0130] Furthermore, a lug 324 is provided here on the base 320, forming a stop for the latch 330 in its rotational movement, moving it away from the grooves 322 in order to limit this rotational movement and thus prevent the latch 330 from reaching positions that are useless for operation and potentially troublesome.

[0131] The latch 330 is for example made of ferromagnetic material (here steel).

[0132] During the rotation R of the screen 310 relative to the base 320 to move from the from the position illustrated in [Fig.4] to the assembled position illustrated in [Fig.5], one of the protruding studs 312 moves (here lifts) the latch 330 into a first position, in particular here by pressing an external circumferential surface of the protruding stud 312 on the locking notch 332 (upwards in figures 4 and 5), so as to allow the passage of this protruding stud 312 (guided in one of the grooves 322). In other words, during the rotation R of the screen 310 relative to the base 320, the latch 330 pivots slightly around its axis of rotation (by cooperation of the shapes of the latch 330 and the protruding stud 312) until a first position (represented in [Fig.4]) in order to allow the continuation of this rotation movement of the screen 310 relative to the base 320 until the assembled position (represented in [Fig.5]).

[0133] The positioning of the locking notch 332 (on the latch 330) and the positioning of the aforementioned protruding stud 312 (on the screen 310) are such that, in the assembled position of the screen 310 and the base 320 illustrated in [Fig. 5], the locking notch 332 no longer moves the latch 330 towards the first position, so that the latch 330 can instead be positioned in a second position (here under the effect of the attractive force of a permanent magnet 314 mentioned later) where the locking notch 332 cooperates with a lateral face 313 of the protruding stud 312 so as to retain the screen 310 and the base 320 in the assembled position (here by preventing rotation of the screen 310 relative to the base 320 in the opposite direction to the direction of rotation R allowing access the assembled position).

[0134] In the present embodiment, this is therefore the relative movement of the base 320 and the screen 310 (here by rotational movement R) until the assembled position combined with the attractive force of the magnet 314 which places the latch 330 in its second position (represented in [Fig.5]).

[0135] The screen 310 further includes a permanent magnet 314 positioned to exert an attractive force on the latch 330 (here on the gripping part 336 of the latch 330), the latch 330 being for example here in contact with the permanent magnet 314, when the screen 310 and the base 320 are in the assembled position and the latch 330 is in the second position (retaining position of the screen 310 relative to the base 320).

[0136] The latch 330 is thus held in the second position by the force of attraction exerted by the permanent magnet 314.

[0137] The permanent magnet 314 is also positioned here so that the attractive force exerted by the permanent magnet 314 on the latch 330 is orthogonal to the retaining force exerted by the locking member 330 (here specifically by the locking notch 332) on the screen 310 (here specifically on the relevant protruding stud 312). This attractive force and this retaining force are each orthogonal to the aforementioned mounting axis. In other words, this attractive force and this retaining force each extend parallel to the main faces (rear face and front face) of the screen 310.

[0138] To remove the screen 310 from the base 320, the user moves the latch 330 in the opposite direction to the attractive force exerted by the permanent magnet 314 on the latch 330 (the latch 330 being thus moved upwards in the example of [Fig.5]), so that the latch 330 moves from the second position to the first position, in which the locking notch 332 no longer prevents the rotation of the screen 310 relative to the base 320 in the direction allowing the screen 310 to be returned to its position illustrated in [Fig.4] (i.e. in the opposite direction to the rotation R).

[0139] The user can thus rotate the screen 310 (relative to the base 320) from its assembled position (illustrated in [Fig.5]) to its position illustrated in [Fig.4], where the user can then separate the screen 210 from the base 220 by translational movement along the mounting axis.

[0140] As the various examples presented above demonstrate, the locking member (flap 30, 130, 230 or latch 330) can have various shapes. The locking member is not necessarily lever-shaped. For example, according to one embodiment of the example in [Fig. 2], the connecting part of the locking member could be a cylindrical piece, possibly made of plastic, mounted to slide within a cylindrical hole in the base, and onto which the two other parts (locking part and gripping part) are mounted.

[0141] Examples of embodiments in which the locking member (flap 30, 130, 230 or latch 330) is made of ferromagnetic material have been described above. and in which a permanent magnet is carried by the screen or by the base so as to allow the locking member to be held in a locked position (i.e. retaining the screen on the base in an assembled position) under the effect of an attractive force exerted by this permanent magnet.

[0142] According to possible variants, the locking member could carry a permanent magnet or be made of magnetic material (i.e. form a magnet).

[0143] The base or screen could then include a part made of ferromagnetic material, so as to allow the establishment of the aforementioned attractive force between the permanent magnet carried (or formed) by the locking member and this part made of ferromagnetic material and thus maintain the locking member in the locked position.

[0144] According to another possibility, the base or the screen could include another permanent magnet configured to attract the permanent magnet carried (or formed) by the locking member and the holding of the locking member in the locked position would then be ensured by the force of attraction between these two permanent magnets.

Claims

Demands

1. Assembly comprising a base (20; 120; 220; 320) and a screen (10; 110; 210; 310), said assembly comprising a locking member (30; 130; 230; 330) configured to move, relative to the base (20; 120; 220; 320) and relative to the screen (10; 110; 210; 310), between a first position, in which the locking member (30; 130; 230; 330) allows relative movement of the screen (10; 110; 210; 310) and the base (20; 120; 220; 320), and a second position, in which the locking member (30; 130; 230; 330) retains assembled the screen (10; 110; 210; 310) and the base (20; 120; 220; 320), the assembly being configured to maintain the locking member (30; 130; 230; 330) in the second position under the effect of an attractive force exerted by a permanent magnet (26; 118; 216; 314).

2. Assembly according to claim 1, wherein the locking member (30; 130; 230; 330) is movably mounted on the screen (10), alternatively on the base (120; 220; 320), and is held in contact with the base (20), alternatively with the screen (110;210;310), under the effect of said attractive force.

3. Assembly according to claim 1 or 2, wherein the locking member (30; 130; 230; 330) is movably mounted on the screen (10), alternatively on the base (120; 220; 320), and cooperates in the second position with a locking relief (24; 117; 218; 313) carried by the base (20), alternatively by the screen (110; 210; 310).

4. Assembly according to claim 3, wherein the retaining force exerted by the locking member (30; 130; 230; 330) on the locking relief (24; 117; 218; 313) is orthogonal to the attractive force exerted by the permanent magnet (26; 118; 216; 314).

5. Assembly according to any one of claims 1 to 4, wherein the base (20; 120; 220; 320) and the screen (10; 110; 210; 310) are shaped to cooperate by allowing relative movement along a one-degree-of-freedom link.

6. Assembly according to claim 5, wherein the locking member (30; 130; 230; 330) is configured to remove said degree of freedom in the second position.

7. Assembly according to any one of claims 1 to 6, wherein the base (20; 120; 220; 320) and the screen (10; 110; 210; 310) are configured to move relative to each other until they reach an assembled position.

8. Assembly according to claim 7, configured to permit movement of the locking member (30; 130; 230) from the first position to the second position under the effect of said attractive force when the base (20; 120; 220) and the screen (10; 110; 210) are in the assembled position.

9. Assembly according to claim 7, configured so that the relative movement of the base (320) and the screen (310) to the assembled position places the locking member (330) in its second position.

10. Assembly according to any one of claims 1 to 9, comprising means (18; 126; 224; 324) for limiting the movement of the locking member relative to the base (120; 220; 320) or to the screen (10).

11. Assembly according to any one of claims 1 to 10, wherein the locking member (30; 230; 330) is mounted movably in rotation on the base (220; 320) or on the screen (10) between the first position and the second position.

12. Assembly according to any one of claims 1 to 10, wherein the locking member (130) is mounted movably in translation on the base (120) or the screen between the first position and the second position.

13. Method of mounting a screen (10; 110; 210; 310) on a base (20; 120; 220; 320), comprising the following steps: - positioning the screen (10;110;210;310) relative to the base (20; 120; 220; 320) in an assembled position; - movement of a locking member (30; 130; 230; 330) to a position in which the locking member (30; 130; 230; 330) is held by an attractive force exerted by a permanent magnet (26; 118; 216; 314) and holds the screen (10; 110; 210; 310) on the base (20; 120; 220; 320) in the assembled position.

14. Method according to claim 13, wherein said displacement of the locking member (30; 130; 230) is carried out under the effect of said attractive force.

15. A method according to claim 13, wherein the screen (310) and the base (320) are brought into the assembled position by a relative displacement which places the locking member (330) in its screen retention position (310) on the base (320) in the assembled position.

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