TANGIBLE CONTROL DEVICE WITH VARIABLE GEOMETRY

Abstract

The present invention relates to a tangible control device (10) for controlling a variable data item, comprising an interface (11) capable of rotation about a central axis for a first control of variable data item, this interface comprising a frame (12) and a slider (13) supported by the frame (12), the slider being movable along the frame (12) for a second control of variable data item. The frame (12) comprises a series of segments (20a, 20b, 20c, 20d), each segment being articulated with the segment adjacent to it by means of a hinge axis to allow angular displacement of one relative to the other. The tangible control device (10) comprises an electromechanical actuator (40) for controlling the variable geometry which comprises an electric motor and a cascade of gears. Figure for the abstract: Fig. 25

Description

Title of the invention: TANGIBLE CONTROL DEVICE WITH VARIABLE GEOMETRY TECHNICAL FIELD OF THE INVENTION

[0001] The present invention relates to a tangible control device, in particular a tangible control device with variable geometry. TECHNICAL BACKGROUND

[0002] A tangible control device, also called a tangible user interface, is a device through which a user can interact with digital information by means of a physical object.

[0003] Tangible control devices such as push buttons, rotary knobs (knobs or dials) or linear sliders began to be used even before the invention of computers. Rotary knobs allow relative angular control with dynamic gain and require little space. Linear knobs require more space, but allow absolute linear control and can be grouped together to be adjusted and controlled simultaneously.

[0004] When comparing tangible control devices to their graphical counterparts, they do not require visual attention, minimize the number of gestures, improve the speed and accuracy of settings. However, they lack flexibility. For example, a graphical list can be easily transformed into a drop-down menu when space is lacking on the screen, or the size of a graphical linear button can be increased to increase the precision of control. This is impossible with tangible control devices. They lack flexibility in their shapes and functionality.

[0005] This lack of flexibility causes several problems for users. In particular, they must make a trade-off between space and functionality: if the user needs several functionalities, he will have as many tangible control devices as functionalities, and therefore need as much space. In a limited space, he will have to choose a subset of these devices which may not be suitable for all situations. This problem is even more serious when users have to deal with a large quantity of devices, as with mixing desks.

[0006] To overcome the lack of flexibility of tangible control devices, a device called "KnobSlider" has been developed, described for example in the document Hyunyoung Kim, Céline Coutrix, Anne Roudaut. KnobSlider: Design of a Shape-Changing UI for Parameter Control. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, Apr 2018, Montreal QC, France, pp.1-13. This device uses physical deformation to transform a rotary knob into a linear knob on demand, allowing the combination of their respective advantages: a rotary knob allows relative control with dynamic gain, occupies less area, and can have higher resolution compared to a linear knob. A linear knob allows absolute linear control, provides a haptic indication of the value of the controlled parameter, and allows for the control of up to four sliders simultaneously with one hand.

[0007] Such a device 1 of the “KnobSlider” type is illustrated in Figures 1 to 6.

[0008] As illustrated in Figures 1 and 4, the device 1 is in a configuration of type linear knob in which a slider 2 is used. This configuration can for example be used by an engineer as a slider to roughly control the volume of a sound. The operation of a central button 3 (figures 2 and 5) allows the device to be transformed into a rotary knob type configuration (figures 3 and 6) which allows finer adjustment of the sound volume.

[0009] The device comprises six triangular blocks 4 in the form of prisms and which are connected to each other. When folded, the prisms 4 form a hexagonal button. When unfolded, the prisms 4 are aligned, thus forming a connected surface. The cursor 2 can move along the surface.

[0010] To open / close each hinge between two blocks 4, a servomotor is incorporated into each hinge between two blocks 4. To detect the value in rotary knob configuration or linear knob configuration, a clickable button is placed at the base of the center of a sensor 5. The sensor 5 is connected to a lower central gear 6 and the upper central gear 7, and is used for both the linear configuration and the rotary configuration. When the joints are closed, the ends 8 of the blocks 4 lock with the lower central gear 6, leading to the “rotary knob” configuration. The rotation of the knob (the set of blocks 4) by the user propagates to the axis of the sensor 5 and the device operates as a rotary knob. When the joints are open, the device operates in the “linear knob” configuration.In this configuration, the center block is supported by the lower center gear 6, but rotation of the center block does not affect the gear. Instead, the movement of the slider 2 is transmitted to the upper center gear 7 via a timing belt 9.

[0011] This device, however, has the disadvantage that its size is too large because it requires a motor for each block so as to allow it to be folded onto the previous block. The presence of these motors prevents the size desired by users from being achieved.

[0012] The present invention aims to remedy these drawbacks. Statement of the invention

[0013] To this end, the invention relates to a tangible control device for controlling variable data, comprising an interface capable of rotation around a central axis for a first control of variable data, this interface comprising a chassis and a cursor supported by the chassis, the cursor being movable along the chassis for a second control of variable data; in which the chassis has variable geometry by comprising a series of segments extending successively and articulated two by two, the series of segments being bounded by two terminating segments, each segment extending in a respective direction while being articulated with the segment adjacent to it by means of an articulation axis to allow an angular displacement of one relative to the other between: - a deployed position in which the segments extend in line with each other in the same linear direction, and - a folded position in which a pivot angle is formed between the direction of extension of one and the direction of the other; the tangible control device being characterized in that it comprises an electromechanical actuator for controlling the variable geometry of the chassis between the deployed position of the segments and the folded position of the segments, this actuator comprising an electric motor and a cascade of gears including: - a set of first supported toothed wheels, each movable in rotation around one of the separate articulation axes; - a set of supported intermediate gears each rotatable about a respective axis carried by a segment, each first toothed wheel being coupled in rotation with the first toothed wheel adjacent to it by at least one intermediate gear; wherein one gear of the gear cascade is rotated by the electric motor; and in which the cascade of gears is bounded by the first toothed wheels mounted so as to be movable in rotation each around the axis of articulation between a termination segment and a segment adjacent to it, one of which meshes with a first member blocked in rotation, and the other is either the toothed wheel driven in rotation by the electric motor or meshes with a second member blocked in rotation.

[0014] The invention also relates to a device thus defined, in which the series of segments comprises a central segment which is centered on the axis, this central segment being extended by two branches on either side of its articulated ends, the branches each comprising at least one segment articulated with the central segment.

[0015] The invention also relates to a device thus defined, in which the branches are similar, and in which the segments comprise stop surfaces, the stop surfaces of two adjacent segments cooperating two by two to limit the relative pivoting of one with respect to the other.

[0016] The invention also relates to a device thus defined, in which the linear extent of the segments and their respective stop surfaces are defined so that the chassis: - extends in a rectilinear direction in the deployed position of the segments; - has a polygonal outline in the folded position of the segments.

[0017] The invention also relates to a device thus defined, comprising an electromechanical actuator for moving the cursor along the chassis of the interface.

[0018] The invention also relates to a device thus defined, in which the slider movement actuator comprises an electric motor and a transmission mechanism, this transmission mechanism comprising a pair of pulleys each supported by a distinct termination segment of the interface, and a first belt cooperating with the pulleys, in which one of the pulleys is a driving pulley driven in rotation by the electric motor; in which the slider is attached at a point on the first belt, between the two pulleys, to be moved along the chassis when the driving pulley is rotated by the electric motor.

[0019] The invention also relates to a device thus defined, further comprising an interface support integral in rotation with the interface around the central axis, and a device body on which the interface support is mounted in rotation around the central axis.

[0020] The invention also relates to a device thus defined, in which the electric motor of the electromechanical actuator for controlling the variable geometry of the chassis is carried by the interface support; and in which said electric motor rotates a motor output shaft coupled to one of the gears of the cascade of gears which are carried by the central segment.

[0021] The invention also relates to a device thus defined, in which the electric motor of the electromechanical actuator for moving the cursor is carried by the interface support; and wherein said actuator further comprises a second belt which cooperates with a motor output shaft driven by said electric motor, this second belt forming a return by cooperating with the motor output shaft and the driving pulley.

[0022] The invention also relates to a device thus defined, in which the segments each comprise fins for guiding the slider along the chassis.

[0023] The invention also relates to a device thus defined, in which a flexible guide extends along the frame while being carried by the segments to guide the moving slider. Brief description of the drawings

[0024] Other advantages and particularities of the present invention will result from the description which follows, given by way of non-limiting example and made with reference to the appended figures:

[0025] [Fig.l], already described, is a general perspective view of a tangible control device of the state of the art, in a linear configuration of the device;

[0026] [Fig.2], already described, is a general perspective view of the device of [Fig.l], in an intermediate configuration;

[0027] [Fig.3], already described, is a general perspective view of the device of [Fig.l], in a rotating configuration of the device of the invention;

[0028] [Fig.4], already described, is a perspective view of the device illustrated in [Fig.l];

[0029] [Fig.5], already described, is a top view of the device illustrated in [Fig.2];

[0030] [Fig.6], already described, is a top view of the device illustrated in [Fig.3];

[0031] [Fig.7] is a general perspective view of a tangible control device according to the invention, comprising an interface provided with a slider, an interface support and a device body on which the interface support is pivotally mounted;

[0032] [Fig.8] illustrates a mode of use of the device according to the invention equipping a table;

[0033] [Fig.9], [Fig.10] and [Fig.11] correspond to partial exploded views of a chassis of the interface comprising articulated segments;

[0034] [Fig. 12a], [Fig. 12b] and [Fig. 12c] illustrate in perspective the pivoting dynamics of a secondary mobile segment relative to a central segment of the interface frame;

[0035] [Fig. 13a] and [Fig. 13b] illustrate in perspective the pivoting dynamics of a tertiary mobile segment relative to the secondary mobile segment of [Fig. 12a], [Fig. 12b] and [Fig. 12c];

[0036] [Fig. 14a] and [Fig. 14b] illustrate in perspective the pivoting dynamics of a terminating mobile segment relative to the tertiary mobile segment of [Fig. 13a] and [Fig.13b];

[0037] [Fig. 15] is a vertical sectional view of the interface frame, in the folded configuration of the movable segments;

[0038] [Fig. 16a] is a top view of the interface frame, in a deployed configuration of the movable segments;

[0039] [Fig. 16b] is a perspective view of the tangible control device equipping a table according to figure [Fig.8], in a deployed configuration of the movable segments;

[0040] [Fig. 17] is a top view of the interface chassis, in a transient configuration;

[0041] [Fig. 18a] is a top view of the interface frame, in a folded configuration of the movable segments;

[0042] [Fig. 18b] is a perspective view of the tangible control device equipping a table according to figure [Fig.8], in a folded configuration of the movable segments;

[0043] [Fig. 19] and [Fig.20] illustrate the cooperation between the interface chassis and a kinematic chain of an electromechanical actuator for controlling the geometric configuration of this chassis;

[0044] [Fig.21], [Fig.22], [Fig.23], [Fig.24] and [Fig.25] are general perspective views or interface detail illustrating an electromechanical belt actuator for automated cursor movement;

[0045] [Fig.26] and [Fig.27] are vertical sectional views of the tangible control device which illustrate an arrangement of the electric motors, one of which constitutes the electrometric actuator for controlling the geometric configuration of the chassis and the other of which constitutes the electrometric actuator for automated movement of the cursor; DETAILED DESCRIPTION OF THE INVENTION

[0046] In the following, identical, similar or analogous elements will be designated by the same reference numbers.

[0047] [Fig.7] illustrates a tangible control device 10 according to the invention. This tangible control device comprises an interface 11, an interface support 14 secured to the interface 11, and a device body 15 on which the interface support 14 is pivotally mounted.

[0048] The device body 15 provides a support role for the tangible control device 10. In the example of the figures, the device body 15 comprises a foot 16, of disc shape, intended to be placed on a support surface and a tubular part 17 with a central axis of revolution AZ of vertical orientation which extends the foot in a direction SI of elevation. The tubular part 17 forms a sleeve for integrating a rotating motor 18.

[0049] In more detail, the rotating motor 18 comprises a fixed part 18a integrated in the tubular part 17 and a part 18b movable in rotation relative to the fixed part which is crimped in the interface support 14. This movable part 18b is centered on the central axis AZ to allow rotation of the interface support 14 around this axis.

[0050] The interface support 14 is in the form of a housing arranged vertically between the device body 15 and the interface 11.

[0051] The interface 11 corresponds to the part of the control device with which a user is intended to physically interact. The interface 11 comprises a frame 12 extending in a plane normal to the central axis AZ, and on which a slider 13 is slidably mounted.

[0052] In practice, the interface support 14 and the device body 15 are judiciously masked when the tangible control device 10 is installed operationally. As a non-limiting example, with reference to [Fig.8], an orifice O may be formed in a plate P, for example of a mixing table, so as to allow the interface support 14 to extend through and thus position the interface 11 flush with the plate P.

[0053] In the context of the invention, the aim is to use the interface 11 as: - a rotary button, allowing the control of an associated variable data item by means of an angular displacement, noted 0 in [Fig.8], jointly between the interface 11 and the interface support 14 around the central axis AZ; and - linear button, allowing the variable data to be controlled by means of a movement, noted V, of the cursor 13 along the chassis 12.

[0054] In order to make the use of the interface as ergonomic as possible depending on the type of use desired, the frame 12 of the interface 11 is derived from the association of several segments 20 articulated two by two. This arrangement makes it possible to give the frame 12, and more generally the interface 11, a variable geometry.

[0055] A particularity of the invention relates to the architecture of the segments. The chassis comprises a central segment 20a fixed relative to the interface support 14, on either side of which extend a first and a second branch B1, B2 which are each formed of consecutive mobile segments.

[0056] In the example of the figures, the branches B1, B2 each comprise three mobile segments 20b, 20c and 20d respectively designated by secondary, tertiary and termination segments. The mobile segments 20b, 20c, 20d extend orthogonally to the vertical direction and each have a degree of freedom in rotation relative to the directly adjacent segment around a vertical axis articulation pin.

[0057] In the following, the morphology and relative arrangement of the segments will be described by considering their destination orientation, normal to the central axis AZ.

[0058] The main segment 20a and the movable segments 20b, 20c, 20d each comprise a respective body 21a, 21b, 21c and 21d. Considering the elevation direction SI, the segment bodies comprise top and bottom faces which are oriented normal to the vertical direction and flank faces which connect the top and bottom faces. All of the segments are advantageously shaped so as to have thicknesses, measured vertically between the top and bottom faces, which are substantially equivalent so as to be able to align the top or bottom faces in the same plane.

[0059] The secondary 20b, tertiary 20c and termination 20d mobile segments of the first branch B1 have morphologies similar respectively to the secondary, tertiary and termination mobile segments of the second branch B2. On this basis, the central segment 20a and the mobile segments 20b, 20c, 20d of the first branch B1 will be described with reference to FIGS. 9 to 15. This teaching is directly applicable to the segments of the second branch B2.

[0060] The body 21a of the main segment 20a extends linearly from a first end 21al from which the first branch B1 extends, to a second end 21a2 which is extended by the second branch B2. The body 21a extends orthogonally to the vertical central axis AZ, being arranged so that its central region coincides with the central axis AZ.

[0061] The main segment 20a further comprises a pair of fins 22a which vertically extend the top face. They are provided to jointly ensure the translational guidance V of the slider 13 along the body 21a.

[0062] The first and second ends 21al, 21a2 of the body 21a of the main segment 20a are in the form of circular contour yokes. These yokes are formed of two circular contour tabs arranged vertically opposite one another.

[0063] The tabs of each end 21al, 21a2 are spaced apart from each other in the vertical direction so as to define a gap, identified respectively by lal and Ia2. Advantageously, the vertically measured thickness of each of the tabs of each end 21al, 21a2 corresponds substantially to one third of the overall thickness of the body 21a, and the gap lal, Ia2 defined between them extends along the remaining middle third of the body.

[0064] Furthermore, the tabs are each provided with an orifice which is formed transversely in the vertical direction and coincides with the center of the circular contour of the corresponding ends 21al, 21a2. As understood, the orifices of the tabs of the same end are formed coaxially.

[0065] As regards the secondary segment 20b, its body 21b extends linearly while being extended vertically at the level of its top face by a pair of fins 22b provided to jointly ensure the translational guidance V of the cursor 13. The body is linearly delimited by a first end 23b and a second end 24b.

[0066] The first end 23b of the secondary segment 20b is in the form of a tongue whose contour corresponds to that of the theoretical circular contour of the first end 21 al of the main segment 20a, from which a peripheral annular portion has been removed. Shaped to cooperate with this first end 21 al of the body 21a of the main segment 20a in order to constitute an articulation, the first end 23b: - has a thickness corresponding to the gap lal, namely a value corresponding to one third of the thickness of the body 21b; - extends vertically at the middle third of the thickness of the body 21b; and - is provided with an orifice which is formed transversely in the vertical direction and centered on the theoretical circular contour on the basis of which the shape of the tongue 23b is defined.

[0067] As understood, the first end 23b of the secondary segment 20b and the first end 21al of the main segment 20a respectively form male and female portions of a cylindrical yoke joint.

[0068] The assembly of the secondary segment 20b with the main segment 20a then consists of integrating the first end 23b within the gap lal, by aligning the orifices so as to allow the engagement of an articulation pin, denoted Plab, extending vertically along an axis denoted AZlab.

[0069] The radial pivoting of the secondary segment 20b relative to the main segment 20a, around the axis AZlab, is limited between: - a deployed position illustrated in [Fig. 12a], in which the secondary segment 20b extends in the extension of the main segment 20a, following the same direction of linear extension; and - a folded position in which the direction of extension of the secondary segment 20b and that of the main segment 20a form a pivot angle aab, marked in [Fig.l2c].

[0070] The linear position of the secondary segment 20b corresponds to a support of a stop surface 26b of the secondary segment 20b against a corresponding stop surface 26a 1 of the main segment 20a. The stop surface 26b of the secondary segment 20b corresponds to a delimiting surface of the tongue 23b. The stop surface 26al of the main segment 20a is defined by a vertical protrusion (visible in hatching in [Fig. 15] for illustration purposes) which connects the tongues of the yoke 21al within the gap lal. As understood, the stop surfaces 26b and 26al are radially superimposable around the axis AZlab.

[0071] Additionally, the folded position of the secondary segment 20b corresponds to a support of a stop surface 27b of the secondary segment 20b against a corresponding stop surface 27al of the main segment 20a. The stop surface 27b of the secondary segment 20b corresponds to a delimiting surface of the tab 23b, and the stop surface 26al of the main segment 20a is defined by the vertical protrusion which connects the tabs of the yoke 21al within the gap 1al.

[0072] The stop surfaces 27al and 27b are shaped so that the value of the pivot angle aab marking the folded position is equal to 120°.

[0073] It should be noted that the bodies 21a, 21b of the main and secondary segments have indentations, identified by 28b and 28a 1, formed at the level of the flank surfaces oriented obliquely opposite one another when the secondary segment 20b pivots. These indentations 28b and 28al result from a material recess in the bodies 21a, 21b which allows the stop surfaces 27al and 27b to bear against one another.

[0074] In the example of the figures, the footprints 28b and 28al are complementary in shape so as to engage against each other in the folded position of the secondary segment 20b, thus forming complementary stop surfaces.

[0075] However, the invention is not limited to this condition of form, an arrangement in which the footprints 28a 1 and 28b are not complementary in shape can also be retained provided that they extend at a distance from each other in the folded position of the secondary segment 20b. It is clearly understood that a bearing of the stop surfaces 27a 1 and 27b against each other would be hindered in the opposite case.

[0076] Concerning the second end 24b of the body 21b of the secondary segment 20b, it has a morphology similar to the first end 21al of the body 21a of the main segment 20a. It is in the form of a yoke consisting of two tabs with a circular outline which are spaced apart and arranged facing each other in the vertical direction. The tabs delimit a gap Ib. Advantageously, the vertically measured thickness of each tab corresponds substantially to a third of the overall thickness of the body 21b, and additionally the gap Ib defined between them extends along the residual middle third.

[0077] Furthermore, the tabs are each provided with an orifice which is formed transversely in the vertical direction. These orifices are aligned vertically by being formed in the center of the circular contour of the tabs so as to receive a hinge pin, denoted Plbc, ensuring a pivot connection with the tertiary segment 20c.

[0078] As regards the tertiary segment 20c, it has a shape generally similar to that of the secondary segment 20b. Its body 21c extends linearly from a first end 23c provided to cooperate with the secondary segment 20b and a second end 24c provided to cooperate with the termination segment 20d. A pair of fins 22c vertically extend the top face of the body 21c provided to jointly ensure the translational guidance V of the cursor 13 along the body 21c of the tertiary segment.

[0079] The first end 23c of the body 21c of the tertiary segment 20c is in the form of a tongue provided with a vertical through-orifice, in the same way as for the first end 23b of the body 21b of the secondary segment 20b. It is intended to be housed in the gap Ib defined by the second end 24b of the body 21b of the secondary segment 20b so as to constitute a cylindrical clevis joint by aligning the corresponding orifices of the tongues and inserting them through a joint pin Plbc with a vertical axis denoted AZlbc.

[0080] The radial pivoting of the tertiary segment 20c relative to the secondary segment 20b, around the axis AZlbc, is limited between: - a deployed position illustrated in [Fig. 13a], in which the tertiary segment 20c extends in the extension of the secondary segment 20b, following the same direction of linear extent; and - a folded position in which the direction of extension of the tertiary segment 20c and that of the secondary segment 20b form a pivot angle abc, marked in [Fig.l3b],

[0081] Note that the pivoting of the tertiary segment 20c relative to the secondary segment 20b from the deployed position to the folded position is carried out in the same trigonometric direction as the pivoting of the secondary segment 20b relative to the main segment 20a.

[0082] In the same way as in the case of pivoting of the secondary segment 20b relative to the main segment 20a, the deployed position of the tertiary segment 20c corresponds to abutment of a stop surface 30c of the tertiary segment 20c against a corresponding stop surface 30b of the secondary segment 20b. The stop surface 30c of the tertiary segment 20c corresponds to a delimitation surface of the first end tab 23c. The stop surface 30b of the secondary segment 20b is defined by a vertical protrusion (marked in hatching in [Fig. 15]) which connects the tabs of the yoke 24b within the gap 1b.

[0083] The folded position of the tertiary segment 20c corresponds to a support of a stop surface 31c of the tertiary segment 20c against a corresponding stop surface 31b of the secondary segment 20b. The stop surface 31c of the tertiary segment 20c corresponds to a delimiting surface of the tab 23c, and the stop surface 26al of the main segment 20a is defined by the vertical protrusion which connects the tabs of the yoke 21al within the gap 1a.

[0084] Unlike the stop surfaces 27al and 27b which condition the value of the pivot angle aab of the folded position of the secondary segment 20b relative to the main segment 20a at 120°, the stop surfaces 31c and 31b are shaped so that the angle value abc is equal to 60°. This difference in angle value between abc and aab is translated in particular in practice by an arc length of the vertical protrusion of the secondary segment 20b, which connects the tabs of the yoke 24b within the gap 1b, greater than the arc length of the vertical protrusion of the main segment 20a which connects the tabs of the yoke 21al within the gap 1al. This particularity is visible in [Fig. 15].

[0085] As understood, the association of the pivot angle aab at 120, defined between the orientations of the secondary segment 20b in the folded position and of the main segment 20a, and of the angle abc at 60° defined between the orientations of the tertiary segment 20c and of the secondary segment 20b in the folded position, leads to a parallelism of the tertiary segment with the main segment.

[0086] The second end 24c of the body 21c of the tertiary segment 20c corresponds strictly to the second end 24b of the body 21b of the secondary segment 20b. It is in the form of a cylindrical yoke formed of two vertically facing tabs which define a gap 1e. These tabs are each provided with a vertically directed through orifice for the insertion of a Foot articulation pin making it possible to ensure a pivot connection with the termination segment 20d.

[0087] Furthermore, the bodies 21b, 21c of the secondary and tertiary segments comprise indentations, identified by 32b and 32c, formed at the level of the flank surfaces which are found obliquely facing each other when the tertiary segment 20c pivots. These indentations 32b and 32c correspond in practice to a removal of material along the plane of the stop surfaces 31b and 31c so as to allow contact against each other of these stop surfaces in the folded position of the tertiary segment 20c.

[0088] Finally, the termination segment 20d comprises a body 21d extending linearly from a first end 23d intended to cooperate with the tertiary segment 20c and a second end 24d intended to cooperate with the main segment 20a.

[0089] A pair of fins 22d vertically extend the top face of the body 21c provided to jointly ensure the translational guidance V of the cursor 13 along the body 21c of the tertiary segment

[0090] In the same way as for the tertiary segment 20c, the first end 23d of the termination segment is in the form of a tab provided with a vertical through orifice. It is intended to be housed in the gap defined by the second end 24c of the body 21c of the tertiary segment 20c so as to constitute a cylindrical clevis joint by aligning the corresponding orifices of tabs and insertion through a hinge pin Vertical axis foot noted AZlcd.

[0091] The radial pivoting of the termination segment 20d relative to the tertiary segment 20c, around the axis AZlcd, is limited between: - a deployed position illustrated in [Fig. 14a], in which the termination segment 20d extends in the extension of the tertiary segment 20c, following the same direction of linear extent; and - a folded position in which the direction of extension of the termination segment 20d and that of the tertiary segment 20c form a pivot angle acd, marked in [Fig.14b].

[0092] The transition from the deployed position to the folded position of the termination segment 20d relative to the tertiary segment 20b is carried out in the same trigonometric direction as the pivoting of the tertiary segment 20c relative to the secondary segment 20b and as the pivoting of the secondary segment 20b relative to the main segment 20a.

[0093] Stop surfaces 33d and 34d of the termination segment 20d and stop surfaces 33c and 34c of the tertiary segment are distinguished, which are provided to come into contact two by two respectively in the deployed position and in the folded position of the termination segment 20d. In a manner analogous to the morphology of the secondary and tertiary segments: - the stop surfaces 33d and 34d of the termination segment 20d correspond to delimiting surfaces of the first end tab 23d; and - the associated stop surfaces 33c and 34c of the tertiary segment 20d are defined by a vertical protrusion (marked in hatching in [Fig. 15]) which connects the tabs of the second end yoke 24c within the gap 1c.

[0094] Furthermore, the stop surfaces 34c and 34d are shaped so that the angle value acd, formed at their contact between the directions of extent of the tertiary and termination segments 20c, 20d, is equal to 60°.

[0095] Furthermore, it is provided according to the invention that the rods Plbc and Foot extend at an isodistance from the central axis AZ in the folded position of the secondary and tertiary segments. On the basis of this dimensioning rule, a pivot angle value acd of 60° induces an alignment of the body of the termination segment with the second end 21a2. In order to satisfy the angle value acd of 60°, the second end 24d of the termination segment is in the form of a mortise with an arc-shaped contour which forms the negative of the circular contour of the second end yoke 21a2 of the main segment 20a.

[0096] As understood, this second end 24d of termination segment 20d is shaped to bear against the second end 21a2 of segment main following its contour when the termination segment 20d is in the folded position.

[0097] Additionally, the bodies 21a and 21d of the main and termination segments 20a, 20d each comprise a recess 36al, 36d at the level of the flank surfaces which are obliquely opposite each other when the termination segment 20d pivots. In the same way as the respective recesses 28b and 28al of the secondary and main segments, these recesses 36al, 36b result from a material recess in the bodies 21a, 21d which allows the stop surfaces 34c, 34d to bear against each other in the folded position of the termination segment 20d.

[0098] In the example of the figures, the indentations 36al, 36b are complementary in shape so as to engage against each other in the folded position of the termination segment 20d, thus forming complementary stop surfaces. It should be noted, however, that, similarly to the indentations 28b and 28al secondary and main segments, the indentations 36al, 36b are not limited to this condition of shape. An arrangement in which the indentations 36al, 36b are not complementary in shape can be retained, provided that they extend at a distance from each other in the folded position of the termination segment 20d.

[0099] It follows overall from the above that the first branch B1 can be controlled between: - a so-called deployed configuration, marked by a deployed position of all the mobile segments 20b, 20c, 20d which extend linearly in the same direction; and - a so-called folded configuration resulting from the combination of the folded positions of all the mobile segments 20b, 20c, 20d which each extend relative to the preceding segment, forming a pivot angle.

[0100] It results from all the geometric conditions described, namely the angle value aab of 120°, the angle values ​​abc and acd at 60°, the parallelism of the tertiary segment 20c with the main segment 20a, and the iso-distance between the rods Plbc, Pied and the central axis AZ, that the contour formed by the association of the main segment 20a and the first branch B1 in the folded configuration corresponds to an isosceles trapezoid. We thus distinguish an angle ada of 120° which is defined between the directions of extents of the main segment 20a and the termination segment 20d in the folded position.

[0101] With reference to [Fig. 15], the second branch B2 has an arrangement identical to that of the first branch B1 at the start of the second end 21a2 of the main segment. The associated pivot pins and axes are identified by the same reference signs as those corresponding to the first branch, with the difference of a hint: “1” to refer to the first branch B1 and “2” to refer to the second branch B2.

[0102] In the same way as the first branch B1, this second branch B2 can be controlled between: - a deployed configuration, marked by a deployed position of all the mobile segments 20b, 20c, 20d which extend linearly in the same direction; and - a so-called folded configuration resulting from the combination of the folded positions of all the mobile segments 20b, 20c, 20d which each extend relative to the preceding segment by forming an angle.

[0103] The movable segments 20b, 20c, 20d of the second branch B2 pivot from the deployed position to the folded position in the same trigonometric direction as the movable segments 20b, 20c, 20d of the first branch B1. This particularity is notably permitted by the specific morphology of the central segment 20a which follows a central symmetry with respect to the central axis AZ. The body 21a of the central segment 20a thus comprises indentations 28a2, 36a2 which correspond to the indentations 28al, 36a 1 arranged on the opposite flank surface, to allow the folded position of the secondary and tertiary segments 20b, 20d.

[0104] The contour formed by the association of the main segment 20a and the second branch B2 in the folded configuration corresponds to an isosceles trapezoid of orientation opposite to that defined by the association of the main segment 20a and the first branch B1 in the folded configuration.

[0105] When the branches B1 and B2 are both in the folded configuration, two pairs of secondary segments 20b and termination 20d are distinguished, each belonging to a separate branch, which jointly form an angle adb of 120°. In such a case, it is understood that the chassis has a generally hexagonal shape.

[0106] In view of the above, the chassis 12 becomes controllable in shape between a linear deployed configuration, in which the branches B1 and B2 are deployed, and a folded configuration in a polygonal hexagon shape, in which the branches B1, B2 are folded.

[0107] In the deployed configuration, illustrated in Figures 16a and 16b, all of the segments constituting the frame 12 extend in the same linear direction, orthogonal to the vertical direction. In particular, the fins 22 of each segment are shaped at the same height and extend parallel while being arranged at an isodistance from a median plane of the corresponding segment body. With this arrangement, there follows an alignment of the fins along two parallel lines L1, L2, allowing use of the interface as a linear button by means of the displacement rectilinear V of the cursor 13 along the fins to control the value of an associated variable data.

[0108] In more detail, the slider 13 comprises a platform 13a having the shape of a rectangular parallelepiped of which two opposite edges are extended perpendicularly by legs 13b. The slider 13 is dimensioned so that the extent of the platform 13a measured between the legs 13b is greater than the distance measured between each pair of fins of a segment. With this arrangement, the slider 13 can be positioned so as to overlap the fins 22 which together form a rail. The platform 13a rests vertically on the fins while the legs 13b extend parallel to the fins while being arranged externally to the inter-fin space.

[0109] With reference to Figures 17, 18a and 18b, the folded configuration may be suitably adopted when the device 10 is used as an AZ axis rotary knob. This configuration has the advantage of being compact, which is both more suitable for a user to grip compared to the deployed configuration, and reduces the angular control travel. As understood, the shape of the frame 12 in the folded configuration is as similar as possible to that of a conventional circular contour rotary knob, of the potentiometer type.

[0110] From the deployed form, the transition to the folded form consists of pivoting the mobile segments 20a, 20b, 20c of the branches B1, B2 in the same trigonometric direction relative to the previous segment, considering an order starting with the central segment. In the example of [Fig. 17], the direction of folding of the chassis 12, noted C, corresponds to the clockwise direction, but it is understood that the invention is not limited to this particularity. In practice, the morphology of the segments can be reversed so as to change the direction of pivoting without departing from the scope of the invention.

[0111] During the transition between the deployed and folded configuration, the cursor 13 is advantageously placed at the central segment 20a, and more particularly centered on the central axis AZ. This aspect has an operational safety component in that an overlap of the cursor at the level of an articulation pin would lead to an unexpected blocking, which is thereby avoided. Also, from an operational point of view, it is judicious to perform a reset of the variable data before the transition from a linear control by the cursor to a rotary control by means of a joint rotation of the interface 11 and the support 14 around the central axis AZ.

[0112] Another feature of the invention lies in the control of the configuration transition of the chassis 12. The idea behind this feature is to provide a solution which allows a combined pivoting of all the mobile segments at by means of the same energy source. In this regard, the tangible control device 10 according to the invention comprises an electromechanical actuator 40 for deploying / folding the chassis 12.

[0113] With reference to figures 11 and 12, this electromechanical actuator 40 comprises an electric motor and a kinematic chain 41 which is in the form of a cascade of gears arranged flush with the underside of the chassis 12.

[0114] In more detail, the kinematic chain 41 is presented in the form of an association between: - a first movement Ml associated with the first branch B1 of the chassis 12; - a second movement M2 associated with the second branch B2 of the chassis 12; and - a bridge M3 which connects the first and second movements Ml, M2.

[0115] The first movement Ml includes: - a first batch of toothed wheels 44ab, 44bc, 44cd which are mounted mobile in rotation each around one of the articulation pins Plab, Plbc, Pied ensuring the pivoting of the segments of the first branch B1; and - a second set of toothed wheels 46b, 46c, called intermediate, which are mounted so as to be mobile in rotation each around an intermediate rod Tlb, Tic of vertical orientation, one of which is carried by the secondary segment and the other carried by the tertiary segment of the first branch B1; and - a 48d termination gear mounted fixed in rotation on the 20d termination segment of the first branch B1 by means of a Tld termination rod.

[0116] The toothed wheels of the second batch are arranged between two toothed wheels of the first batch to mesh with them. In this respect, the intermediate rods Tlb and Tl are each arranged in an orifice formed in the corresponding body 21b, 21c of the secondary 20b and tertiary 20c segments. Each of these orifices is formed both in alignment and at an iso-distance from the two articulation pins with which the segment cooperates.

[0117] In detail, we distinguish: - an intermediate toothed wheel 46b which meshes with the toothed wheels 44ab and 44bc which are mounted to be mobile in rotation respectively around the articulation pins Plab and Plbc associated with the articulations on either side of the secondary segment 20b; and - an intermediate toothed wheel 46c which meshes with the toothed wheels 44bc and 44cd which are mounted to be mobile in rotation respectively around the articulation pins Plbc and Pied associated with the articulations on either side of the tertiary segment 20c.

[0118] In the example of the figures, the toothed wheels of the first and second batches extend in the same plane orthogonal to the axis AZ and are advantageously dimensioned so as to have the same primitive diameter. The termination gear 48d extends in this same plane, opposite the underside of the chassis. The face of the underside of the chassis corresponds to the association of the top faces of the segments of which it is made.

[0119] As regards this termination gear 48d, it is rigidly carried by the termination pin Tld embedded in an orifice formed in the body 21d of the termination segment. The termination gear 48d and the orifice which accommodates the termination rod Tld are shaped so that this termination gear 48d meshes with the toothed wheel 44cd of the first batch which is mounted to move in rotation around the articulation pin Foot provided between the tertiary segments 20c and termination 20d.

[0120] This results in a continuity of meshing along the branch Bl, from the toothed wheel 44ab at the interface between the central segment 20a and the secondary segment 20b, to the terminating gear 48d.

[0121] The second movement M2 is analogous to the first movement ML. The pins associated with the toothed wheels 46 of the second batch and with the termination gear 48d are identified by the same reference signs as those of the first branch Bl, with the difference of an index: “1” for the first branch and “2” for the second branch.

[0122] The bridge M3, which connects the first and second movements M1, M2, comprises: - a central toothed wheel 50a carried by a central rod T0 pivotally mounted in an orifice passing through the body 21a of central segment 20a whose axis coincides with the central axis AZ of vertical orientation; - two pinions 52al, 52a2 located on either side of the central toothed wheel 50a. These two pinions 52al, 52a2 are each carried by an intermediate rod TOal, T0a2 pivotally mounted in a corresponding orifice which is formed passing vertically through the body 21a of the central segment 20a.

[0123] The orifices in which the intermediate rods TOal, T0a2 are mounted are formed in alignment with the central rod T0 with the articulation pins Plab which ensure the pivoting of the respective secondary segment 20b of the first and second branches B1, B2. Also, these orifices are arranged at an iso-distance from the central rod T0 and the adjacent pivoting articulation pin Plab.

[0124] On this basis, the pinions 52al, 52a2 are sized to mesh both the central toothed wheel 50a and a separate toothed wheel 44ab, either of the first movement M1 or of the second movement M2.

[0125] With this arrangement, the bridge M3 guarantees continuity of meshing of the gear cascade along the chassis 12, ensuring the rotational coupling of the gears of the first and second movements M1, M2.

[0126] As seen in detail in [Fig.20], the terminating gears 48d are in the form of toothed wheels from which a circular segment has been removed. This circular segment is intentionally removed in order to avoid contact of the terminating gears 48d against one of the other toothed wheels of the chain, in particular against the toothed wheel 44ab which is opposite in the folded configuration of the chassis 12.

[0127] It should be noted that the 48d termination gears are not limited to this particular architecture. In practice, the 48d termination gears can be substituted by any member locked in rotation and capable of meshing with the adjacent 44cd toothed wheel.

[0128] From a kinematic point of view, given that the terminating gears 48d are locked in rotation, a rotation of the toothed wheels 44, 46 of the first and second movements M1, M2 can be permitted only if an angular displacement is possible of the toothed wheels relative to each other. This is the principle on which the deployment / folding of the chassis according to the invention is based.

[0129] From the folded configuration of the chassis 12, with reference to [Fig.20], the transmission of a rotation denoted RI from the central toothed wheel 50a to the toothed wheels 44ab is made possible by means of the pivoting of the secondary segments 20b around the respective articulation pins Plab, P2ab. In practice, the intermediate toothed wheel 46b moves along the profile of the toothed wheel 44ab, carrying the pivoting of the secondary segment, as illustrated by an arrow.

[0130] In the same way, the transmission of the rotation RI to the toothed wheels 44bc is made possible by a displacement of the intermediate toothed wheels 46c along their profile, which causes the pivoting of the corresponding tertiary segment 20c. This pivoting is indicated by an arrow in [Fig.20].

[0131] Similarly, the transmission of the rotation RI to the toothed wheels 44cd is made possible by a displacement of the end toothed wheels 46c along their profile. The displacement of the end toothed wheel 46c on the periphery of the adjacent toothed wheel 44cd requires the pivoting of the corresponding end segment 20c around the Foot articulation pin, P2cd. This pivoting is indicated by an arrow in [Fig.20].

[0132] As understood, the deployment of the chassis is made possible by means of a rotation of a toothed wheel which is transmitted along the kinematic chain by the pivoting of the movable segments 20b, 20c, 20d.

[0133] In the context of the illustrated example, the deployment of the chassis 12 begins with a simultaneous pivoting of the mobile segments 20b, 20c and 20d, and ends with an isolated pivoting of the secondary segments 20b. This kinematic particularity results from the identical dimensioning of the toothed wheels 44, 46 and the value of the pivoting angles. Indeed, given that the tertiary and termination segments pivot at 60° relative to the tertiary and secondary segments respectively, while the secondary segment pivots at 120° relative to the main segment 20a, it follows that the tertiary 20c and termination 20d segments are deployed before the secondary segment 20b. When the secondary segment 20b is the only one to pivot in such a case, the other gear wheels 44, 46 act in the same way as the termination gear wheel 48d, namely are locked in rotation.

[0134] The folding of the chassis 12 follows an inverse logic, by imposing a rotation on the central toothed wheel 50a in the opposite direction to the RL direction.

[0135] It should be noted that the rotation RI has been arbitrarily imposed on the central toothed wheel 50a as an example. It should be noted that in this example, one of the central toothed wheel 50a, the toothed wheels 44ab and the pinions 52al, 52a2, can be driving, namely imposing the rotation. In a preferred embodiment of the invention, it is the pinion 52a2 which is driving, namely motorized by the electric motor which is judiciously carried by the interface support 14.

[0136] In view of the above, the kinematic chain 41 allows control of the geometric configuration of the interface 11 by means of rotation of a single gear. The electromechanical actuator for deploying / folding the interface 11 thus requires a single electric motor. This results in a limitation of the electrical consumption, the size and the mass in comparison with an arrangement requiring several electric motors.

[0137] According to another aspect of the invention, it is intended that the slider 13 can slide along the chassis 12 manually by a user, but also without intervention from a user, in an automated manner. In the same way, it is intended that the interface 11 can rotate around the central axis AZ in an automated or manual manner.

[0138] With regard to the automated movement of the cursor 13, the tangible control device 10 according to the invention further comprises an electromechanical actuator 55 for moving the cursor 13 which is specifically adapted to the variable geometry of the chassis 12. This actuator 55 comprises an electric motor 56 and a transmission mechanism 57.

[0139] The transmission mechanism 57 is in the form of a stepped system, comprising a first belt system 58 dedicated to moving the cursor 13 along the chassis 12, and a second belt system 59 which acts as a mechanical return, transmitting to the first belt system 58 a rotation taken from the output of the electric motor 56.

[0140] In more detail with reference to Figures 21 to 25, the first belt system 58 comprises a first belt 60 and a pair of pulleys 61, 62 which limit the extent of the belt 60.

[0141] The pulleys 61, 62 extend flush with the top face of the chassis 12, being advantageously mounted to rotate freely around the pins Foot, P2cd for articulation of the termination segments 20d relative to the tertiary segments 20c. The invention is however not limited to this arrangement, the pulleys being able to be mounted to rotate on separate axes of vertical orientation which are carried by the chassis 12.

[0142] In the deployed configuration of the interface 11, the belt is shaped to extend tautly between the pulleys 61, 62, along the linear extent of the chassis 12.

[0143] In the example of the figures, we distinguish a first pulley 61 carried by the termination segment 20d of the first branch B1, and a second pulley 62 carried by the termination segment 20d of the second branch B2.

[0144] The second pulley 62 has grooves that protrude from its outer surface to cooperate by form complementarity with teeth formed on the first belt 60. The first pulley advantageously has a smooth outer surface. With this arrangement, a rotation of the first pulley 61 causes a rotation of the belt 60 which slides on the outer surface of the first pulley. A grooved outer surface of the first pulley 61 can be retained, inducing a rotational coupling with the second pulley 62 via the first belt 60.

[0145] The slider 13 is attached at a point on the belt 60, between the pulleys 61, 62, so that the rotation of the belt 60 causes the slider 13 to slide towards one or other of these pulleys 61, 62 depending on the direction of rotation adopted.

[0146] The second belt system 59 comprises a second belt 66 which cooperates with the second pulley 62 of the first belt system 58, and a motor pinion 67. The second belt 66 of the second system is shaped to extend tautly between the second pulley 62 and the motor pinion 67.

[0147] The motor pinion 67 is driven in rotation by the electric motor 56. The second belt 66, driven in rotation by the motor pinion 67, imposes its rotation on the second pulley 62 of the first belt system 58. This results in a rotation of the first belt 60 to move the cursor 13.

[0148] A circumferential protrusion 68 is advantageously formed on the external surface of the second pulley 62 to vertically delimit two spaces for passage of the belts 60, 61 to prevent them from rubbing against each other, and hindering their operation.

[0149] The transmission mechanism 57 is particularly adapted to the variable geometry of the chassis 12. The first and second belts 60, 66, due to their flexibility, can follow the pivoting of the mobile segments 20a, 20b, 20c.

[0150] In the example of the figures, the fins 22a, 22b, 22c and 22d do not form a continuity of material along the entire linear extent of the frame 12. This This particularity results from a functional constraint of the belts of the transmission mechanism 57 described according to the invention.

[0151] In more detail, the segments are devoid of fins at the yoke ends, on the side of the flank surfaces which come obliquely opposite each other in the folded position. Otherwise, the fins would intersect the belts 60, 66, which could lead to friction leading to their premature aging, or even their blocking, as suggested in [Fig.25].

[0152] To satisfy the control of the guidance of the cursor 13 along the chassis despite this discontinuity of fins 22, it is provided according to the invention to dimension the legs 13b so that they extend over a length greater than the maximum distance measured between two successive fins, namely between two adjacent segments. It is understood that the legs 13b of the cursor 13 are always guided, at least partially, each by one or more fins along the travel of the cursor 13 along the chassis to avoid loosening.

[0153] With reference to figures 26 and 27, the motors of the actuator 40 for controlling the variable geometry of the chassis 12 and of the electromechanical actuator 55 for moving the cursor 13 are advantageously fixed to the interface support 14, in alignment with the central segment 20a.

[0154] The electric motor of the electromechanical actuator 40 for controlling the variable geometry of the chassis 12, marked 70, rotates a motor output shaft 71. This motor 70 is embedded in a first housing 73 of the interface support 14. The motor 70 and the associated first housing 73 are dimensioned so that the motor output shaft 71 extends in vertical alignment with the intermediate rod TOal which carries the pinion 52al. The motor output shaft 71 is coupled to the intermediate rod TOal so as to rotate the pinion 52al in one direction or the other during a step of deploying / folding the chassis 12.

[0155] The electric motor 56 of the electromechanical actuator 55 for moving the cursor 13 drives a motor output shaft 75 in rotation. In the same way as the motor 70 of the electromechanical actuator 40 for controlling the variable geometry of the chassis 12, the motor 56 is embedded in a second housing 76 of the interface support 14. The motor 56 and the second housing 76 are dimensioned so that the motor output shaft 75 extends coaxially with the intermediate rod T0a2 which carries the pinion 52a2.

[0156] The arrangement of the motors 56 and 70 described on the basis of Figures 26 and 27 corresponds to the preferred arrangement according to the invention. With this solution, the output shafts 71, 75 of the motors 70, 56 pass through the central segment 20a of the chassis 12 at two orifices arranged on either side of the central rod T0. This feature allows: - a rotational coupling of the chassis 12 with the interface support 14 without requiring a specific rotational coupling member; and - to ensure the balance of the tangible control device 10, the center of mass of which is centered on the AZ axis.

[0157] Nevertheless, a different arrangement of the electric motors 56, 70 is permitted according to the invention, which induces a different location of the motor pinion 67 or even the rotation by the motor 70 of a different toothed wheel. In such a case, the electric motors 56, 70 can be carried by the segments 20a, 20b, 20c, 20d of the chassis 12.

[0158] With regard to the automated angular displacement of the interface 11 around the central axis AZ, the motor 18 already described is advantageously arranged in the device body 15 to drive the interface support 14 in rotation around the central axis AZ. The rotation of the interface support 14 causes the rotation of the interface 11.

[0159] In practice, to satisfy the dual condition of manual and automatic control of either the rotation of the interface 11 around the central axis AZ, or of movement of the cursor 13 along the interface 11, the motors which are associated with their actuation are each equipped with an encoder.

[0160] Encoders allow: - to control the operation of the associated motor by sending an instruction, and - to measure the linear displacement of the cursor 13 or the angular displacement of the interface 11 depending on the motor considered, when a variation of variable data is manually carried out by the user.

[0161] The tangible control device 10 according to the invention cooperates with the external control and data processing unit, by means of an electrical harness H visible in [Fig.7]. A rotating contact, not shown, is in particular provided at the level of the motor 18, ensuring the rotation of the interface support 14, to allow passage of the harness cables without hindering rotation.

[0162] The tangible control device 10 according to the invention has been described on the basis of the figures as comprising an interface frame 12 provided with a fixed segment 20 and movable segments constituting analogous branches B1, B2 which deploy linearly or fold to form a hexagon.

[0163] It should be noted firstly that the chassis 12 according to the invention is not limited to this particular arrangement.

[0164] On the one hand, it is not restricted to forcing a hexagon in a folded configuration, and consequently is not limited to the number and morphology of the segments that compose it. In practice, the frame 12 can form any type of polygon, for example a square which requires: - branches with two mobile segments; and - a different geometric conformation of the segments to define stop surfaces allowing either an inter-mobile segment pivot of 90°, or a pivot between the central segment and the directly adjacent mobile segment of 135°.

[0165] It should be noted that the chassis 12 is also not restricted to forming a polygon in a folded configuration, any shape with a closed or open contour being able to be retained by those skilled in the art. In practice, this means that the invention is not limited to the condition of providing a pivoting of the segments in the same trigonometric direction. This feature suggests the integration of idler wheels in the kinematic chain 41, aimed at reversing the direction of rotation of pivoting of a segment considered. As understood, the kinematic chain is not limited to the arrangement described on the basis of the drawings. Additional toothed wheels can be integrated along the kinematic chain to modulate the direction of pivoting of the movable segments as long as a continuity of meshing between the toothed wheels is maintained.

[0166] In practice, any gear of the kinematic chain 41 can be motorized by the motor 70 of the actuator 40. One of the gears which limit the kinematic chain 41 can in particular be used, which means that it is not made fixed in rotation unlike the other.

[0167] Also, a different shape of chassis 12 can result in a length of the segments, and a primitive diameter of gears of the kinematic chain 41, which are different. Indeed, the segments and the gears have been described so as to result in a hexagonal shape of chassis 12. In general, the invention is not limited to the actuator 40, nor to the shape of the segments described on the basis of the appended figures.

[0168] Furthermore, the variable geometry has been explained as the transition from a configuration in which the segments extend linearly in the same direction to a configuration in which they extend in different directions. The linear configuration is required if a rectilinear movement of the cursor 13 is desired. However, a movement of the cursor along the frame 12 whose shape is not strictly linear, for example left or serpentine, could be retained. A non-linear shape of the frame 12 may in particular be of interest for defining positioning markers for the cursor 13 which are associated with target values ​​of variable data. Setting the value of the variable data to a target value is therefore easier for the user.

[0169] As understood, the chassis may adopt in operation any shape within the spectrum defined between its folded shape and its deployed shape.

[0170] The chassis 12 has been described as comprising a central segment 20a, fixed relative to the interface support 14 and centered on the central axis AZ, on either side from which extend branches B1, B2 of movable segments. A different arrangement may be retained in which it is not a central segment which is fixed relative to the interface support 14. For example, the chassis 12 may be bounded by termination segments, one of which is fixed relative to the interface support 14.

[0171] Finally, it should be noted that the invention is not limited to the geometric description of the cursor 13 and the fins 22 of the segments, nor to the electromechanical actuator 55 for moving this cursor 13. In practice, the belts 60, 66 can be substituted by chains while retaining the same actuation and the same flexibility. The transmission mechanism 57 of the actuator 55 can also be substituted by another mechanism, for example a rack and pinion mechanism, without departing from the scope of the invention.

[0172] Finally, the fins 22 may be substituted by another means for guiding the cursor 13, which may in particular be more suitable for moving this cursor along the chassis 12 when it does not extend linearly. By way of non-limiting example, the fins 22 may be replaced by a flexible guide which extends along the chassis 13 while being carried by the segments. Such a guide is advantageously deformable so as to follow the pivoting of the segments without discontinuity. The morphology of the cursor 13 may be modified to adapt to the chosen guiding means.

Claims

1. Claims Tangible control device (10) for controlling variable data, comprising an interface (11) capable of rotation around a central axis (AZ) for a first control of variable data, this interface comprising a chassis (12) and a cursor (13) supported by the chassis (12), the cursor being movable along the chassis (12) for a second control of variable data; in which the chassis (12) has variable geometry by comprising a series of segments (20a, 20b, 20c, 20d) extending successively and articulated two by two, the series of segments (20a, 20b, 20c, 20d) being bounded by two terminating segments (20d), each segment (20a, 20b, 20c, 20d) extending in a respective direction while being articulated with the segment adjacent to it by means of an articulation axis (Plab, Plbc, Pied, P2ab, P2bc, P2cd) to allow an angular displacement of one relative to the other between: - a deployed position in which the segments (20a, 20b, 20c, 20d) extend in line with each other in the same linear direction, and - a folded position in which a pivot angle (aab, abc, acd) is formed between the direction of extension of one and the direction of the other; the tangible control device (10) further comprising an electromechanical actuator (40) for controlling the variable geometry of the chassis (12) between the deployed position of the segments and the folded position of the segments, this actuator (40) comprising an electric motor (70); the tangible control device (10) being characterized in that the electromechanical actuator (40) for controlling the variable geometry of the chassis (12) comprises a cascade of gears (44, 46, 50a, 52) including: - a set of first toothed wheels (44ab, 44bc, 44cd) supported mobile in rotation each around one of the articulation axes (Plab, Plbc, Pied, P2ab, P2bc, P2cd) distinct; - a set of intermediate gears (46b, 46c, 50a, 52a2, 52al) supported mobile in rotation each around a respective axis (Tlb, T2b, Tic, T2c, T0, TOal, T0a2) carried by a segment (20a, 20b, 20c, 20d), each first gear wheel (44ab, 44bc, 44cd) being rotatably coupled to the first gear wheel (44ab, 44bc, 44cd) adjacent thereto by at least one intermediate gear (46b, 46c, 50a, 52a2, 52al); wherein one gear of the gear cascade (44, 46, 50a, 52) is rotated by the electric motor (70); and in which the cascade of gears (44, 46, 50a, 52) is bounded by the first toothed wheels (44cd) each mounted to be movable in rotation around the articulation axis (Foot, P2cd) between a termination segment (20d) and a segment (20c) adjacent thereto, one of which meshes with a first member (48d) locked in rotation, and the other is either the toothed wheel driven in rotation by the electric motor (70) or meshes with a second member (48d) locked in rotation.

2. Device (10) according to claim 1, in which the series of segments (20a, 20b, 20c, 20d) comprises a central segment (20a) which is centered on the axis (AZ), this central segment (20a) being extended by two branches (Bl, B2) on either side of its articulated ends, the branches (Bl, B2) each comprising at least one segment (20b, 20c, 20d) articulated with the central segment (20a).

3. Device according to claim 2, in which the branches (B1, B2) are analogous, and in which the segments (20a, 20b, 20c, 20d) comprise stop surfaces (26a1, 26a2, 26b, 27a1, 27b, 30b, 30c, 31b, 31c, 33c, 33d, 344c, 34d), the stop surfaces of two adjacent segments cooperating two by two to limit the relative pivoting of one with respect to the other.

4. Device according to claim 3, in which the linear extent of the segments (20a, 20b, 20c, 20d) and their respective stop surfaces (26al, 26a2, 26b, 27al, 27b, 30b, 30c, 31b, 31c, 33c, 33d, 344c, 34d) are defined so that the frame (12): - extends in a rectilinear direction in the deployed position of the segments; - has a polygonal outline in the folded position of the segments.

5. Device (10) according to any one of the preceding claims, comprising an electromechanical actuator (55) for moving the cursor (13) along the frame (12) of the interface (H).

6. Device (10) according to claim 5, wherein the actuator (55) for moving the slider (13) comprises an electric motor (56) and a transmission mechanism (57), this transmission mechanism (57) comprising a pair of pulleys (61, 62) each supported by a termination segment (20d) distinct from the interface (11), and a first belt (60) cooperating with the pulleys, wherein one of the pulleys (61, 62) is a driving pulley (62) driven in rotation by the electric motor (56); wherein the slider (13) is attached at a point on the first belt (60), between the two pulleys (61, 62), to be moved along the chassis when the driving pulley (62) is rotated by the electric motor (56).

7. Device (10) according to any one of the preceding claims, further comprising an interface support (14) integral in rotation with the interface (11) around the central axis (AZ), and a device body (15) on which the interface support (14) is mounted in rotation around the central axis (AZ).

8. Device (10) according to claim 7 together with claim 2, in which the electric motor (70) of the electromechanical actuator (40) for controlling the variable geometry of the chassis (12) is carried by the interface support (14); and in which said electric motor (70) rotates a motor output shaft (71) coupled to one of the gears (44ab, 52al, 50a, 52a2) of the cascade of gears which are carried by the central segment (20a).

9. Device (10) according to claim 7 together with claim 6, in which the electric motor (56) of the electromechanical actuator (55) for moving the cursor (13) is carried by the interface support (14); and in which said actuator (55) further comprises a second belt (66) which cooperates with a motor output shaft (71) driven by said electric motor (56), this second belt (66) forming a return by cooperating with the motor output shaft (71) and the driving pulley (62).

10. Device (10) according to one of the preceding claims, in which the segments (20a, 20b, 20c, 20d) each comprise guide fins (22) of the slider (13) along the chassis (12).

11. Device (10) according to any one of claims 1 to 9, in which a flexible guide extends along the frame (12) being carried by the segments (20a, 20b, 20c, 20d) to guide the slider (13) in movement.