WO2018224446A1 - Dispositif de liaison mecanique et de transmission optique et/ou electrique et/ou fluidique entre un premier element et un deuxieme element - Google Patents
Dispositif de liaison mecanique et de transmission optique et/ou electrique et/ou fluidique entre un premier element et un deuxieme element Download PDFInfo
- Publication number
- WO2018224446A1 WO2018224446A1 PCT/EP2018/064640 EP2018064640W WO2018224446A1 WO 2018224446 A1 WO2018224446 A1 WO 2018224446A1 EP 2018064640 W EP2018064640 W EP 2018064640W WO 2018224446 A1 WO2018224446 A1 WO 2018224446A1
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- WIPO (PCT)
- Prior art keywords
- transmission
- connection
- optical
- electrical
- connecting portion
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
- H01R35/02—Flexible line connectors without frictional contact members
Definitions
- the present invention relates to the field of motion transmission, in particular that of the ball joint links between a first element and a second element.
- part B only partially surrounds the spherical portion, and only the opposite side to ferrule C. Also, this patent does not disclose a configuration according to which a second connection portion intended to be attached to a second element is disposed at least partly between a first connection portion and a first connecting member.
- the invention thus has, according to a first of its aspects, and mechanical connection device and optical transmission and / or electrical and / or fluidic between a first element and a second element, comprising:
- first junction member connected optically and / or electrically and / or in fluidic relation with the first element, and mounted on the first connection part,
- connection part intended to be fixed to the second element, arranged at least partly between the first connection part and the first connecting member and defining a ball joint connection between the first and second elements
- a second junction member connected optically and / or electrically and / or in fluidic relation with the second element, arranged in the second connection part,
- the first and second connecting members being configured to allow optical and / or electrical and / or fluid transmission from one to the other.
- the device according to the invention allows a transmission at the same time mechanical, optical, electrical and fluidic between the first and second elements.
- optical, electrical and fluidic contacts can be synchronized with the mechanical transmission of motion.
- the first connecting member and the second connecting member may both be arranged in the second connecting portion.
- the second connection portion is in a movable embodiment with respect to the first connection portion with three degrees of freedom.
- the second connection portion may be rotatable about an axis Z of the first connecting portion by an angle greater than 180 °, better than 210 °, in particular 360 °. In one embodiment, the second connection portion may be completely free to rotate about the Z axis of the first connection portion.
- the Z axis may be a central axis for the first connection portion, including an axis of symmetry thereof.
- the second connecting portion may be rotatable about at least one axis X perpendicular to the Z axis by a maximum angle strictly greater than 0 °, better than 10 °, or even greater than 20 °, or even around several X axes perpendicular to the Z axis.
- the X axes can form a plane P perpendicular to the Z axis.
- the maximum angle can for example be of the order of 22.5 °, but the configuration of the device could be modified so that this maximum angle is different without departing from the scope of the present invention. This maximum angle is still called the deflection angle for the device.
- the second connection portion can be rotatable about several X axes all perpendicular to the Z axis by an angle strictly greater than 0 °, better than 10 °, or even greater than 20 °, even an infinity of X axes forming the plane P perpendicular to the axis Z.
- the first connecting portion may include a concave portion, and the second connecting portion may have an opposite outer concavity.
- the second connection part can thus be partially arranged in the first connection part.
- the concave portion of the first connecting portion may have an at least partially spherical inner surface and the second connecting portion may include an at least partially spherical outer surface.
- the inner surface of the first connecting portion may have a generally annular shape, which may form a portion of a first sphere extending 360 ° about a central axis Z and extend in an angular portion between two angles a and ⁇ measured from the center of the first sphere perpendicular to the central axis Z.
- the angle may be between 1 and 45 °, better between 2 ° and 35 °, or between 3 ° and 25 °.
- the angle ⁇ may be between 10 and 90 °, 90 ° excluded value, better between 15 ° and 75 °, or between 20 ° and 65 °.
- the first sphere may have a radius R1 between 6 and 500 mm, better still between 10 and 250 mm, for example being of the order of 20 mm.
- the outer surface of the second connecting portion may have a generally annular shape, which may form a second sphere portion extending 360 ° about a central axis Y of the second connecting portion and extend into a portion angle between two angles ⁇ and ⁇ measured from the center of the second sphere perpendicular to the central axis Y.
- the angle ⁇ may be between 10 and 80, better between 20 ° and 70 °, or even between 30 ° and 60 °.
- the angle ⁇ can be between -60 ° and 60 °, better between -50 ° and 50 °, or between -40 ° and 40 °.
- the second sphere may have a radius R 2 of between 6 and 500 mm, better still between 10 and 250 mm, being for example of the order of 20 mm.
- the first and second spheres may have a common center. Their rays may differ by a few hundredths of a millimeter.
- R1-R2 is between 0.01 and 2 mm, or even between 0.02 and 1.5 mm, and more preferably between 0.03 and 1 mm.
- the first connecting member may comprise a convex portion, and the second connecting portion may have an opposite inner concavity.
- the first connecting member can thus be partially arranged in the second connection portion.
- the second connecting portion may have an at least partially spherical inner surface and the first connecting member may include an at least partially spherical outer surface.
- the inner surface of the second connecting portion may have a generally annular shape, which may form a portion of a third sphere extending 360 ° about the central axis Y and extend in an angular portion between two angles ⁇ and ⁇ described above.
- the third sphere may have a radius R 3 of between 4 and 480 mm, better still between 10 and 300 mm, being for example of the order of 18 mm.
- the outer surface of the first joint member may have a generally annular shape, which may form a fourth sphere portion extending 360 ° about the central axis Z and extend in an angular portion between the two angles a and ⁇ described above.
- the fourth sphere may have a radius R 4 of between 4 and 480 mm, better still between 10 and 300 mm, being for example of the order of 18 mm.
- the third and fourth spheres may have a common center. Their rays may differ by a few tenths of a millimeter.
- R 3 -R 4 is between 0.01 and 2 mm, or even between 0.02 and 1.5 mm, better still between 0.03 and 1 mm.
- the second connecting portion may include an inner surface having a radial groove extending over at least a portion of the height of the inner surface.
- the radial groove extends in one embodiment in a plane containing the central axis Y of the second connection portion.
- the second connecting member may comprise a rotary plate equipped with a lug intended to be received in the radial groove of the second connection portion.
- the rotary plate may be of generally discoidal shape, extending substantially flat, according to the aforementioned plane P. It can be rotatable about the aforementioned Z axis of the first connecting portion by an angle greater than 180 °, better than 210 °, in particular 360 °.
- the rotational movement of the rotating plate around the Z axis can be transmitted to the second connection part, and vice versa, thanks to the cooperation of the lug in the radial groove.
- the rotating plate remains parallel to the plane P, the lug of the rotary plate moving in the radial groove during a displacement of the second connecting portion about the X axes and the plane P.
- the device according to the invention can be used as a universal joint between two non-aligned rotary axes. Such a seal also allows sealed electrical and / or internal optical junctions.
- the second connection portion may be devoid of the aforementioned radial groove, and the second connecting member be devoid of the aforementioned pin.
- the second connecting portion and the second connecting member may be interconnected by a synchronizing rod to ensure the transmission of the rotational movement of the rotary plate of the second connecting member about the Z axis to the second part connection, and vice versa.
- the rod can be fixed by a ball joint connection on the one hand to the second connecting portion and on the other hand to the second connecting member.
- the ball joint can be sealed, so as to also allow a fluid connection in the connecting rod, as will be seen later.
- the connecting rod can be hollow. It may comprise in this case a first connecting rod portion and a second link portion connected in translation junction, limited in stroke and sealed, so as to allow the fluid connection in the connecting rod.
- the first and second connecting members may each comprise an electrical current collector.
- Each of the transmission collectors may comprise at least two tracks for electrical transmission. One of the tracks allows the transmission of the mass and the other of the electric current.
- Each of the collectors may for example comprise between 2 and 20 tracks, or even between 4 and 12 tracks, for example 6 tracks or 8 tracks.
- the transmitters can be configured to achieve a high data rate.
- the tracks of each of the two transmission collectors can be circular and concentric.
- each of the two transmission collectors may have a generally planar and discoidal shape.
- Both transmitters may have the same number of tracks with the same pattern. They are symmetrical to each other with respect to the plane P.
- the two collectors of transmission are movable in rotation relative to each other about the Z axis, but fixed relative to the plane P. They can be of generally discoidal shape and extend substantially plane, parallel to the one to the other according to plan P.
- the second transmission manifold is in one embodiment attached to the rotary plate.
- the device may comprise a plurality of balls disposed between the first transmission collector of the first connecting member and the second transmission collector of the second connecting member to allow electrical transmission between the first and second collectors.
- the balls comprise at least one electrically conductive coating. They may in particular be made of an electrically conductive material, for example stainless steel or brass or copper, this list not being limiting.
- the use of beads reduces or even advantageously remove friction.
- the device may comprise between 6 and 200 balls, better between 8 and 120 balls, or even between 12 and 36 balls.
- Each track of a connector may be in contact with between 3 and 36 balls, better between 5 and 8 balls, or even between 9 and 18 balls.
- the balls may in particular be retained in a holding part.
- the retaining piece may take the form of a generally discoidal plate, which is pierced with orifices in which the balls may be arranged.
- the holding piece is fixed to the second joining member, for example by snapping.
- the transmission collectors and the balls could be arranged in a tubular rather than a planar manner.
- the invention further relates, independently or in combination with the foregoing, according to another of its aspects, a device for mechanical connection and optical and / or electrical and / or fluidic transmission between a first element and a second element, comprising:
- first junction member connected optically and / or electrically and / or in fluidic relation with the first element, and mounted on the first connection part,
- connection part intended to be fixed to the second element, arranged at least partly between the first connection part and the first junction member and being able to define a ball joint connection between the first and second elements
- a second junction member connected optically and / or electrically and / or in fluidic relation with the second element, arranged in the second connection part,
- first and second connecting members being configurable to allow optical and / or electrical and / or fluid transmission from one to the other
- the two first and second junction members each having an electrical current collector, a plurality of balls being disposed between the first transmission collector of the first connecting member and the second transmission collector of the second connecting member to allow a electrical transmission between the first and second collectors.
- the electrical transmission between the two transmission connectors could be performed without beads, but for example by means of blades having a spring effect, including a blade per track, or brushes.
- the first connection portion may comprise a first receiving electrical connector receiving the electrical data of the first element.
- the first electrical receiving connector may be of generally discoidal shape and extend substantially flat, according to the plane P.
- the second connection portion may include a second receiving electrical connector receiving the electrical data of the second element.
- the second electrical receiving connector may include electrical connection hoses connecting it to the second transmission connector.
- the second electrical receiving connector may be of generally discoidal shape and extend substantially flat, in a plane Q perpendicular to the central axis Y.
- An electrical track can be configured to allow the passage of a current of the order of a few amperes, for example between 0.5 and 10 A, better between 1 and 6 A, or even between 1.5 and 4 A, being for example of the order of 2 A.
- the device may be configured to allow optical transmission between the first and second elements.
- the device may comprise for this purpose an optical ring disposed on one of the connecting members, the optical ring may have a surface state to keep the same intensity and the same speed of light in rotation when one of the organs junction is rotated relative to the other.
- the optical ring may have undergone an appropriate gradient evolutionary surface treatment, with a variation of opacity.
- Such a configuration eliminates the periodicity in reception.
- the optical processing of the optical ring can be chosen to obtain a continuous output signal.
- an electronic recording of this curve can be performed to smooth the output signal.
- the state of the surface, the shape of the surface and the density of the material of the optical ring are chosen to allow the transmission of light with sufficient synchronization.
- the optical ring may be of generally annular shape and extend substantially flat, parallel to the plane P.
- the device may comprise two optical rings arranged opposite each other, parallel to the plane P, one on each of the two connecting members.
- the optical rings may have a shape configured to allow light to enter the ring through a disk-shaped inlet, the light then distributing over the entire surface of the ring having a shape. annular. Such a configuration of the optical rings then allows the optical transmission to the second ring-shaped ring, and the reconcentration of the light to a disk-shaped output.
- the disk-shaped inlet and outlet may be relatively pointwise with respect to the annular transmission surface between the two rings.
- the light beam between the first and second rings can thus be of annular cross section.
- the same optical ring may comprise one or more input and / or output, in particular disk-shaped, allowing the arrival and the output of the light.
- the transmission can be entirely optically performed only, namely that the light can be transmitted directly from a first optical fiber leading from the first element, then through the optical ring and then transmitted directly to a second optical fiber. leading to the second element, or reciprocally.
- the first and second optical fibers may be flexible, so as not to prevent relative rotation of the connecting members. In one embodiment, one may be fixed and the other may be flexible.
- the transmission can be performed both optically and electrically.
- the device may comprise at least one transmitter and an optical receiver for optical-electrical or electrical-optical or electrical-optical-electrical transmission or optical-electronic-optical transmission between the two transmission collectors.
- each transmission collector may comprise an optical transceiver, which may each be arranged facing the aforementioned optical ring.
- the device can be configured to allow fluid transmission between the first and second elements.
- the transmitted fluid may be gaseous, for example air, or liquid, for example water or oil.
- the fluid can flow in one place or alternatively in two different places.
- the fluid may circulate for example in the center of the device, the fluid flow then being axial, or on the side, the fluid flow is then eccentric.
- the device may comprise a hollow central shaft for the passage of the fluid.
- the device may comprise an eccentric fluid passage, equipped with appropriate seals.
- the fluidic junction is configured to be sealed.
- the device may comprise a rod fixed by a ball joint connection on the one hand to the second connection portion and on the other hand to the second connecting member, as mentioned above, configured to allow the fluid connection.
- the rod is hollow, having a first hollow rod portion and a second hollow rod portion which are connected in translation junction, limited in stroke and sealed, so as to allow the circulation of the fluid in the connecting rod.
- the first connecting rod portion may be configured to slide partially into the second connecting rod portion.
- the device according to the invention can be configured to be sufficiently sealed. By “sufficient sealing” is meant that the seal must be such that the electrical and / or optical connections can take place in the device satisfactorily.
- the device according to the invention can still have a seal allowing a fluidic transmission, so as to ensure a fluid relationship between the first and second elements, as described above.
- the sealing of the device may for example have a sufficient degree of protection, for example IP67.
- the first and second connection portions are configured to provide internal sealing of the device.
- the device may include a seal disposed between the first and second connection portions. It may be made of a thermoplastic material, for example EPDM or PTFE. Its hardness can be for example of the order of 30 to 70 Shore A or 40 to 60 Shore D.
- At least one of the first and second connection parts may be made of a thermoplastic material, for example POM (Polyoxymethyl).
- the electrical and optical contacts are preferably synchronized at the input and output of the device.
- the device can have a generally circular shape. It may have a larger transverse dimension, in particular a diameter, for example between 50 and 1000 mm, better still between 60 and 800 mm, and even between 80 and 500 mm, better still between 100 and 140 mm, being, for example, order of 120 mm.
- the device may also comprise one or more sensors, for example one or more ultrasonic sensors, or one or more infrared sensors. Such sensors can be used to play a role of collision avoidance, or tracking in space.
- the invention further relates to an assembly comprising a plurality of devices as described above, coupled to each other, one of the first connection portion or the second connection portion of a first device forming the first element for a second adjacent device.
- Two adjacent devices may be interconnected each by their first connection part, or alternatively each by their second connection part, or alternatively one by its first connection part and the other by its second connection part. .
- the devices can be arranged in any direction.
- Such an assembly makes it possible to increase the possible angle of deflection, insofar as the angles of movement of each device add to each other.
- Two adjacent devices can be coupled together by an assembly ring, to ensure the maintenance of the two consecutive connection parts of one and the other of the devices.
- Each of the first and second connection portions may include snap-on tabs for securing a connection portion to another.
- the latching lugs may all be identical, except to provide a coding system to ensure the correct orientation of the connection parts relative to the Z axis. All the latching lugs may be of identical shape, except one, to this effect.
- the assembly may further comprise one or more accessories coupled to a device. It may be mechanical or electrical accessories, such as for example an Ethernet jack, a USB socket, an optical fiber, a motorized telescopic arm, this list is not limiting.
- An assembly and a device according to the invention can be used in all the technical fields in which an electrical transmission device and / or optical and / or fluidic articulated without limit of rotation can be useful, and in particular in the industrial field, for a production or assembly line, in the field of robotics, for an articulated arm, or ink in the field of home automation for data transfer and lighting, this list not being limiting.
- FIG. 1 is a schematic and partial perspective view of a device according to the invention, - Figure 2 is an exploded view,
- FIGS. 3a and 3b are views according to the arrows A and B of FIGS. 1 and 2,
- FIG. 4 is a schematic and partial cross-sectional view along IV-IV of the device of FIGS. 1, 2, 3a and 3b;
- FIGS. 4a to 4c are detail views of FIG. 4,
- FIG. 5 is a schematic and partial perspective view of the first connection portion of the device of FIGS. 1 to 4,
- FIG. 6 is an exploded view
- FIG. 7 is a view along arrow VII of FIGS. 5 and 6,
- FIG. 8 is a cross-sectional view along VIII-VIII
- FIG. 9 is an exploded view, schematic and partial, of the second connection portion of the device of FIGS. 1 to 4,
- FIG. 10 is a view along the arrow X of FIG. 9,
- FIG. 11 is a cross-sectional view along XI-XI
- FIG. 12 is a schematic and partial perspective view of the first connecting member of the device of FIGS. 1 to 4,
- FIGS. 14a and 14b are views according to the arrows A and B of FIGS.
- FIG. 15 is a cross-sectional view along XV-XV, diagrammatic and partial, of the device of FIGS. 12, 13, 14a and 14b,
- FIGS. 16a and 16b are diagrammatic and partial perspective views of the second connecting member of the device of FIGS. 1 to 4,
- FIGS. 17a and 17b are views according to the arrows A and B of FIGS. 16a and 16b,
- FIG. 18 is a schematic and partial cross-sectional view along XVIII-XVIII of the device of FIGS. 16a, 16b, 17a and 17b,
- FIG. 20 is a schematic and partial perspective view of the optical transmission of the device of FIGS. 1 to 4,
- FIG. 20a is a view along arrow A
- FIG. 20b is a cross section along BB
- FIGS. 20c and 20d are detailed views of FIG. 20b
- FIGS. 21a and 21b are perspective views from above and from below of one of the connecting members
- FIGS. 22a and 22b are perspective views from above and below the other of the connecting members
- FIG. 23a is a view
- FIGS. 23c and 23d are detail views of FIG. 23b.
- FIG. 23e is a perspective view of an embodiment variant of optical rings
- FIG. 23 f is an exploded view
- FIG. 23g is a view from above
- FIG. 23h is a view in longitudinal section
- FIG. 24 is a schematic and partial perspective view of an assembly according to the invention.
- FIG. 25 is a perspective view, schematic and partial, of an alternative embodiment
- FIG. 26 is an exploded view
- FIG. 27 is a view along arrow XXVII of FIGS. 25 and 26;
- FIG. 28 is a cross-sectional view along XXVIII-XXVIII,
- FIG. 29a is a view from above, similar to FIG. 4, of an alternative embodiment
- FIG. 29b is a cross-sectional view along B-B
- FIG. 30 is a perspective view of an alternative embodiment, FIG. 3 is a view from above,
- FIGS. 3a and 3d are detailed views
- FIG. 32a is a perspective view of the connecting rod of FIG. 30,
- FIG. 32b is a cross-sectional view along B-B
- FIG. 33 is a view similar to FIG. 4 of an alternative embodiment
- FIG. 33a is a view along the arrow A.
- FIGS. 1 to 19 show a device 1 for mechanical connection and optical and electrical transmission and between a first element E1 and a second element E2, which are indicated in dotted lines in FIG.
- the device comprises a first connection portion 10 intended to be fixed to the first element El, and a second connection portion 20 intended to be fixed to the second element E2.
- the device further comprises a first junction member 30 optically and electrically connected to the first element, and mounted on the first connection portion, as can be seen in FIG. 2, and a second junction member 40 connected optically and electrically. with the second element E2, arranged in the second connection part 20.
- the second connection portion 20 is disposed at least partly between the first connection portion 10 and the first connecting member 30, as can be seen in FIG. 4.
- the two connection portions 10 and 20 define a ball joint connection between the first and second elements El and E2, thanks to their specific form which will be described below.
- first and second connecting members 30 and 40 are configured to allow optical and electrical transmission from one to the other, so that the device 1 allows a transmission at the same time mechanical, optical and electrical between the first and second elements E1 and E2.
- the first connecting member and the second connecting member are both arranged in the second connecting portion 20.
- the second connection portion 20 is movable relative to the first connection portion 10 in three degrees of freedom.
- the second connecting portion 20 is rotatable about an axis Z of the first connecting portion 10 at an angle of 360 °.
- the second connection portion 20 is completely free to rotate about the Z axis of the first connection portion 10.
- the Z axis is a central axis for the first connection portion 10.
- connection portion is rotatable about all X axes perpendicular to the Z axis of a maximum deflection angle of the order of 22.5 °.
- the X axes form a plane P perpendicular to the Z axis, which is the plane of Figures 3a, 3b and 7.
- the first connection portion 10 comprises a concave portion 1 1.
- This concave portion 1 1 has an interior surface that is at least partially spherical.
- the inner surface of the first connecting portion has a generally annular shape, which forms a portion of a first sphere extending 360 ° about the central axis Z and extends in an angular portion between two angles a and ⁇ measured from the center of the first sphere perpendicularly with respect to the central axis Z, as illustrated in FIG. 8.
- the angle a is for example of the order of 12.5 °.
- the angle ⁇ is for example of the order of 25 °.
- the first sphere has a radius Ri, for example of the order of 20 mm.
- the second connection portion 20 has an outer concavity opposed to the concavity of the concave portion 1 1.
- the second connection portion is thus partially disposed in the first connection portion.
- the second connecting portion 20 has an outer surface 21 at least partially spherical, which has a generally annular shape, and which forms a second sphere portion extending 360 ° about a central axis Y of the second connecting portion 20 and extends in an angular portion between two angles ⁇ and ⁇ measured from the center of the second sphere perpendicular to the central axis Y, as can be seen in Figure 1 1.
- the angle ⁇ is for example of the order of 50 °.
- the angle ⁇ is for example of the order of 5 °.
- the second sphere has a radius P 2 for example of the order of 20 mm.
- the first connecting member 30 has a convex portion 31, which takes the form of a partially spherical outer surface.
- the outer surface of the first joint member 30 is generally annular in shape, which forms a fourth sphere portion extending 360 ° about the central axis Z and extends in an angular portion between the two angles a and ⁇ described above.
- the fourth sphere has a radius R 4 of the order of 18 mm.
- the second connecting portion 20 has an opposite inner concavity, which has the shape of an inner surface 22 partially spherical.
- the first connecting member can thus be partially arranged in the second connecting part, as can be seen in FIG. 4.
- the inner surface of the second part of the connection 20 has a generally annular shape, which forms a portion of a third sphere extending 360 ° about the central axis Y and extends in an angular portion between the two angles ⁇ and ⁇ described above.
- the third sphere has a radius R 3 of the order of 18 mm.
- Such a configuration makes it possible to ensure the possibility of rotation of the second connection portion 20 between the first connection portion 10 and the first connecting member 30.
- the second connection portion has an inner surface 22 having a radial groove 24 extending over at least a portion of the height of the inner surface 22.
- the radial groove 24 s extends in a plane containing the central axis Y of the second connection part, as can be seen in FIG.
- the second connecting member comprises, as illustrated in Figures 16a to 19, a rotary plate 42 equipped with a lug 43 to be received in the radial groove 24 of the second connecting portion 20.
- the rotary plate 42 is of discoidal general shape, extending substantially flat, according to the plane P supra. It is rotatable about the aforementioned Z axis of the first connection portion 10 at an angle of 360 °.
- the rotational movement of the rotary plate around the Z axis can be transmitted to the second connection part, and vice versa, thanks to the cooperation of the lug 43 in the radial groove 24.
- the rotary plate remains parallel in the plane P, the lug of the rotary plate moving in the radial groove during a displacement of the second connection portion about the X axes and the plane P.
- the device is configured to allow electrical transmission between the first and second elements E1 and E2.
- the first and second connecting members 30 and 40 each comprise an electrical current collector, respectively 35 and 45.
- the second transmission collector 46 is fixed to the rotary plate 45, as can be seen on FIG. Figure 16a.
- Each of the two transmission collectors 36, 46 has a generally planar and discoidal shape.
- Each of the transmission manifolds 35, 45 comprises six tracks for electrical transmission, respectively 36 and 46, as illustrated in Figures 12, 13, 14a on the one hand, and 22a on the other hand.
- One of the tracks allows the transmission of the mass and the others of the electric current.
- the tracks 36 and 46 of each of the two transmission collectors 35 and 45 are circular and concentric.
- the two transmission collectors 35, 45 have the same number of tracks with the same drawing. They are symmetrical to one another with respect to the plane P.
- the two transmission collectors are movable in rotation with respect to each other about the Z axis, but fixed with respect to the plane P. They are of discoidal general shape and extend substantially plane parallel to each other along the plane P.
- the device comprises a plurality of balls 50 arranged between the first transmission collector 35 of the first connecting member 30 and the second transmission collector 45 of the second connecting member. 40, which are retained in a holding member 52, as illustrated in Figures 16a and 19.
- the balls 50 comprise at least one electrically conductive coating. They may in particular be made of an electrically conductive material, for example stainless steel.
- the holding piece 52 has the form of a discoid-shaped plate, which is pierced with orifices 53 in which the balls 50 are arranged.
- the first connection part 10 comprises a first electrical receiving connector 15 receiving the electrical data of the first element El, visible in FIGS. 3b, 6 and 7.
- the first electrical receiving connector 15 is of discoidal general shape and is extends substantially flat, according to plane P.
- the second connection portion 20 comprises a second electrical receiving connector 25 receiving the electrical data of the second element E2.
- the second electrical receiving connector 25 is generally discoidal in shape and extends substantially flat, in a plane Q perpendicular to the central axis Y.
- the plane Q is the plane of Figures 17a and 17b.
- the second electrical receiving connector 25 has electrical junction hoses 27 connecting it to the second transmission connector 45.
- the device is also configured to allow optical transmission between the first and second elements E1 and E2.
- the device comprises for this purpose an optical ring 60 disposed on one of the connecting members 30 or 40, namely on the first connecting member 30, as shown in more detail in Figures 20 to 23d.
- the optical ring 60 is generally annular in shape and extends substantially flat, parallel to the plane P.
- the light is led to or from the optical ring 60 by two optical fibers 61, as illustrated in FIG. 20 for example .
- the device further comprises two optical transceivers 62 and 63, each on one of the transmission collectors, which are each arranged opposite said optical ring 60.
- the optical transmission can be done by means of two optical rings 60 arranged face to face.
- Each optical ring 60 has a shape configured to allow light to enter the ring through a disk-shaped inlet 64, the light then being distributed over the entire surface 65 of the ring having an annular shape. Then there is an optical transmission to the second annular ring 60, and the reconcentration of the light to a disk-shaped output 66.
- Each optical ring 60 has undergone n external dispersion surface treatment, so as to allow internal radiation. All the outer surfaces of the optical rings 60, apart from the entrances 64 and exit 66, may be coated with an opaque diffusing material, for example of the aluminide, silvering or other type. The internal radiation is thus transmitted only between the input 64 and output 66 and the annular beam.
- the invention also relates to an assembly 5 comprising four devices 1 as described above, coupled to each other, as illustrated by way of example in FIG. 24.
- the first connection portion 10 of the first device 1 forms the first element for the second adjacent device.
- the first device 1 is connected to the second device 1, one by its first connection part 10 and the other by its second connection part 20.
- the second and third adjacent devices 1 are interconnected each by their first connecting part 10, and the third and fourth adjacent devices 1 by their second connecting part 20. Two adjacent devices are coupled together by an assembly ring 70, to ensure the maintenance of the two consecutive connection parts of one and the other of the devices.
- Each of the first and second connection portions has snap tabs 72 for attachment of one connecting portion to another.
- the latching lugs may all be identical, except to provide a coding system to ensure the correct orientation of the connection parts with respect to the Z axis.
- FIGS. 25 to 28 show an embodiment comprising five transmission tracks 36, 46, the tracks each having the shape of a ring whose inner surface is a portion of a cone, as visible on Figure 26, between which are disposed balls 50 retained in a holding member 52, as in a bearing. There are thus 5 holding pieces 52 housing 5 sets of balls 50.
- the current is fed to each of the tracks by axial rods 37, 47, passing inside the tracks or outside.
- FIGS. 29a and 29b illustrate the possibility of connecting the second connection portion 20 and the second connecting member 40 by means of a synchronization link 80 making it possible to transmit the rotation movement of the plate. rotating the second connecting member about the Z axis to the second connecting portion, and vice versa.
- the rod can be fixed by a ball joint connection on the one hand to the second connecting portion and on the other hand to the second connecting member.
- the device according to the invention can alternatively still allow a mechanical connection and optical, electrical and fluidic transmissions.
- FIGS. 30 to 32b also illustrate another exemplary embodiment, also comprising a connecting rod 80, in which the ball joint is leaktight, so as to also allow a fluid connection in the connecting rod.
- the rod 80 is hollow, and in this case comprises a first connecting rod portion 81 and a second rod portion 82 connected in translation junction, limited in stroke and sealed, allow the fluid connection in the connecting rod 80.
- the first connecting rod portion 81 is configured to slide partly in the second connecting rod portion 82.
- This example also differs from the embodiment of FIGS. 1 to 19 by the value of the angles a and ⁇ and ⁇ and ⁇ .
- FIGS. 33 to 33e further illustrate an embodiment variant configured to allow optical, electrical and fluidic transmissions simultaneously or successively.
- the device comprises a connecting rod 80 of fluid tight connection, forming a fluid path F.
- the device may also comprise one or more sensors, for example one or more ultrasonic sensors, or one or more infrared sensors. Such sensors can make it possible to play a role of anticoUision, or even of locating in space.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Optical Couplings Of Light Guides (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18727038.4A EP3635885A1 (fr) | 2017-06-09 | 2018-06-04 | Dispositif de liaison mecanique et de transmission optique et/ou electrique et/ou fluidique entre un premier element et un deuxieme element |
CN201880038240.7A CN110771068A (zh) | 2017-06-09 | 2018-06-04 | 在第一元件和第二元件之间的用于机械连接以及用于光传输和/或电传输和/或流体传输的装置 |
JP2019568195A JP2020522659A (ja) | 2017-06-09 | 2018-06-04 | 第1の要素と第2の要素の間の機械的連結のための、並びに、光学的および/または電気的および/または流体伝達のための装置 |
US16/620,201 US11063401B2 (en) | 2017-06-09 | 2018-06-04 | Device for mechanical connection and for optical and/or electrical and/or fluid transmission between a first element and a second element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1755174 | 2017-06-09 | ||
FR1755174A FR3067419B1 (fr) | 2017-06-09 | 2017-06-09 | Dispositif de liaison mecanique et de transmission optique et/ou electrique et/ou fluidique |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018224446A1 true WO2018224446A1 (fr) | 2018-12-13 |
Family
ID=60080912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/064640 WO2018224446A1 (fr) | 2017-06-09 | 2018-06-04 | Dispositif de liaison mecanique et de transmission optique et/ou electrique et/ou fluidique entre un premier element et un deuxieme element |
Country Status (6)
Country | Link |
---|---|
US (1) | US11063401B2 (fr) |
EP (1) | EP3635885A1 (fr) |
JP (1) | JP2020522659A (fr) |
CN (1) | CN110771068A (fr) |
FR (1) | FR3067419B1 (fr) |
WO (1) | WO2018224446A1 (fr) |
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EP2073408A1 (fr) * | 2007-12-17 | 2009-06-24 | Siemens Aktiengesellschaft | Dispositif de transmission de signaux lumineux et procédé correspondant |
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GB8629400D0 (en) * | 1986-12-09 | 1987-01-21 | Engis Ltd | Lapping apparatus |
US5085492A (en) * | 1990-10-01 | 1992-02-04 | Iris Medical Instruments, Inc. | Optical fiber with electrical encoding |
US5897417A (en) * | 1995-12-11 | 1999-04-27 | Primordial, Llc | Construction system |
AU2656400A (en) * | 1999-03-02 | 2000-09-21 | Huber & Suhner Ag | Coaxial connection for a printed circuit board |
JP2003066286A (ja) * | 2001-08-24 | 2003-03-05 | Citizen Electronics Co Ltd | 双方向光伝送デバイス |
CN1497239A (zh) * | 2002-10-10 | 2004-05-19 | 日立工机株式会社 | 光束分离单元、光束发射角度补偿光学单元和激光标记装置 |
DE10310134B3 (de) * | 2003-03-07 | 2004-09-30 | Era-Contact Gmbh | Optische Signalkupplung |
CN100544414C (zh) * | 2003-12-26 | 2009-09-23 | 株式会社尼康 | 可佩戴显示单元、耳机和设有它们的系统 |
JP2006113280A (ja) * | 2004-10-14 | 2006-04-27 | Okano Electric Wire Co Ltd | 光モジュール |
US7854614B2 (en) * | 2007-12-14 | 2010-12-21 | Robb John R | Multi-contact universally jointed power and/or signal connector devices |
JP5159507B2 (ja) * | 2008-06-20 | 2013-03-06 | キヤノン株式会社 | カップリング部材の取り外し方法、カップリング部材の取り付け方法、及び、電子写真感光体ドラムユニット |
EP2330965B1 (fr) * | 2008-09-05 | 2018-07-11 | Carnegie Mellon University | Dispositif endoscopique à liaisons multiples avec assemblage distal sphérique |
WO2010052280A1 (fr) * | 2008-11-06 | 2010-05-14 | Mec A/S | Interrupteur électrique |
DE202009005546U1 (de) * | 2009-04-16 | 2009-06-18 | Igus Gmbh | Kabelführung |
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2018
- 2018-06-04 JP JP2019568195A patent/JP2020522659A/ja active Pending
- 2018-06-04 CN CN201880038240.7A patent/CN110771068A/zh active Pending
- 2018-06-04 EP EP18727038.4A patent/EP3635885A1/fr not_active Withdrawn
- 2018-06-04 WO PCT/EP2018/064640 patent/WO2018224446A1/fr active Application Filing
- 2018-06-04 US US16/620,201 patent/US11063401B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
FR3067419A1 (fr) | 2018-12-14 |
US20200099187A1 (en) | 2020-03-26 |
JP2020522659A (ja) | 2020-07-30 |
CN110771068A (zh) | 2020-02-07 |
US11063401B2 (en) | 2021-07-13 |
FR3067419B1 (fr) | 2019-07-19 |
EP3635885A1 (fr) | 2020-04-15 |
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