EP4191796A1 - Tastenanordnung zum automatischen trennen von anschlüssen, gerätemechanismus mit dieser anordnung und verfahren zur herstellung der anordnung - Google Patents

Tastenanordnung zum automatischen trennen von anschlüssen, gerätemechanismus mit dieser anordnung und verfahren zur herstellung der anordnung Download PDF

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Publication number
EP4191796A1
EP4191796A1 EP22205814.1A EP22205814A EP4191796A1 EP 4191796 A1 EP4191796 A1 EP 4191796A1 EP 22205814 A EP22205814 A EP 22205814A EP 4191796 A1 EP4191796 A1 EP 4191796A1
Authority
EP
European Patent Office
Prior art keywords
key
section
rotation shaft
rotation
keys
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22205814.1A
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English (en)
French (fr)
Inventor
Simon DELMAS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP4191796A1 publication Critical patent/EP4191796A1/de
Pending legal-status Critical Current

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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/78—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring

Definitions

  • the present invention relates to a key system for unlocking the automatic terminals provided in a fitting mechanism. It also relates to a fitting mechanism incorporating this system as well as a method of manufacturing this system.
  • the invention relates more particularly to a system of keys for disconnecting automatic terminals in a fitting mechanism, which comprises a plurality of keys attached to a common element.
  • the present invention proposes a system of several keys connected together, which guarantees the independence of the keys and which does not constrain the order of assembly of the mechanism. 'equipment.
  • a system of keys as described in the introduction in which the common element is a rotation shaft divided into sections which are connected two by two by connecting zones, each key being linked by in a rigid manner to a distinct section so that the direct actuation by a user of any one of the keys causes the rotation around its longitudinal axis of the section to which this key is attached, to move the said key according to a determined angular displacement constituting the operational stroke of said key, and in which each connecting zone is arranged so that the rotation of a section, generated by the direct actuation of the attached key, keeps each adjacent section immobile or causes an incident rotation of each adjacent section around of its longitudinal axis to move the adjacent key attached to this section along an incident angular movement much less than the operational stroke of said adjacent key.
  • each key is fixed with respect to the section to which it is rigidly linked, so that when the key is directly actuated by a user, it is the assembly formed by the key and the section which is set in motion.
  • the angular displacement of the key actuated by the user depends directly on the force of action of the user on this key.
  • the operational travel of the key corresponds to a minimum angular displacement of the key which is sufficient to unlock the automatic terminal with which this key is associated.
  • connection zone between two adjacent sections of the rotation shaft allows the separation of the rotation between these two sections.
  • connection zone prevents a key other than that which is actuated directly by the user from unlocking the automatic terminal with which this other key is associated.
  • system according to the invention provides for all the keys to be integral with the rotation shaft. This configuration facilitates the installation of the system in the base of the fitting mechanism, in a single step, and avoids losing the individual keys, which are often of small dimensions.
  • the common tree is also in one piece. It is therefore one-piece. Preferably, it is formed in one piece with the keys. It is advantageously made of one and the same material, typically a plastic material.
  • the term “widely” used in the expression "move the adjacent key attached to this section following an incident angular displacement much less than the operational stroke of said adjacent key” indicates that the incident angular displacement is sufficiently far from the stroke operational in such a way that the movement of the adjacent key never results in the unlocking of the automatic terminal with which this adjacent key is associated.
  • the incident angular deflection will be at least 5% less than the operational travel.
  • the term "automatic terminal” means a terminal whose electrical connection is automatic, that is to say the tightening of a connection element, generally the stripped core of a conductor electrical, is ensured by an automatic clamping blade having a spring effect which automatically compresses, without the intervention of any installer, the connection element against a conductive wall of the terminal.
  • the actuation of a key causes a rotation of the section to which this key is linked, which rotation allows the disconnection element associated with this key to unlock the automatic terminal, it that is to say to act against the automatic clamping blade to be able to release the connection element introduced into the terminal. It is only thanks to the particular connection zone of the key system according to the invention that the rotation of this section does not cause a rotation of the adjacent section which would be sufficient to unlock the neighboring automatic terminal. Thus, in the fitting mechanism according to the invention, an installer is assured that the actuation of each key only unlocks the automatic terminal with which this key is associated.
  • the key system mounted in the insulating base is a system in which each connection zone is shaped to be received and kept adjusted in the insulating base.
  • connection zone By “adjusted” is meant the fact that there is as little clearance as possible between each connection zone received in the insulating base and the insulating base itself. Preferably, it is considered that there is no play at all between each connection zone and the insulating base. Thus, once the system has been assembled and held in an adjusted manner in the insulating base, each connection zone cannot move in the insulating base.
  • the base is shaped to receive the system according to the invention so that each connecting zone of said system, formed by a part of the rotation shaft, is at least partly coincident with a zone for maintaining the system in the insulating base.
  • Such an advantageous fitting mechanism is easy and quick to assemble insofar as the system and the insulating base are shaped relative to each other to correspond.
  • the system can be assembled on the insulating base in a single step, and without constraint on the moment of assembly of the automatic bollards in the base.
  • the invention finally relates to a method for manufacturing a system according to the invention, according to which an injection molding of at least one thermoplastic material is carried out in order to manufacture in one piece each key with the rotation shaft section to which it is rigidly bound.
  • the system according to the invention can take varied and possibly complex shapes while being obtained quickly, simply and inexpensively, by molding.
  • the trim materializes and delimits an insertion well into which a user can insert an electrical plug for the purpose of supplying current to an electrical appliance connected to said plug.
  • the device support is used for mounting the insulating base of the current outlet mechanism 1 either in an electrical box (not shown) embedded or attached projecting from any wall, or in a trunking (not shown).
  • fitting mechanism according to the invention is of another type, for example an electric switch mechanism.
  • the current outlet mechanism 1 comprises an insulating base 10 which houses a plurality of electrical connection terminals 2, 3.
  • the base 10 here has a generally parallelepipedic shape.
  • This base 10 comprises, on the one hand, a bottom wall 12 on the inner face of which are made slots intended to receive the electrical connection terminals 2, 3, and, on the other hand, a side wall 11 which is rises from this bottom wall 12 and which delimits, at the front, a reception opening 15 (see figure 7 ) intended to receive the trim.
  • the insulating base 10 thus forms a box, open at the front.
  • the base 10 of the current outlet mechanism 1 more specifically comprises three slots 13, 14 (see figure 4 And 5 ) to accommodate three electrical connection terminals 2, 3: two side locations 13 intended to receive two female terminals 2 and a central location 14 intended to receive a male terminal 3.
  • the electrical connection terminals are adapted to establish electrical contact between electrical conductors from the electrical network and conductive elements of the electrical plug plugged into the insertion well of the trim.
  • female terminals refers to the electrical connection terminals 2, the functional part of which comprises a reception cell 2A (see figure 6 ) intended to receive a connection pin of the electrical plug
  • the electrical connection terminal 3 whose functional part comprises an electrical contact element, such as a ground pin 3A (see figure 6 And 7 ), intended to protrude into the insertion well of the trim to fit into a socket of the electrical plug.
  • the 3A ground pin is generally that of a Franco-Belgian type socket.
  • the electrical contact element of a male terminal could be formed by a lyre, as is conventionally the case in a German standard socket outlet (type F).
  • the electrical connection terminals 2, 3 will be referred to as “terminals 2, 3”.
  • each terminal 2, 3 is more precisely accessible via a pair of insertion openings 18 provided in the bottom wall 12 of the base 10.
  • One of the insertion openings of each pair of insertion openings 18 is intended for the passage of the stripped core of an electrical conductor coming from the network carrying the current from neutral, phase, or connected to earth, up to a conductive cage of terminal 2, 3 (see figure 8 ), the other opening of the pair of insertion openings 18 being provided for the passage of a tapping conductor of this terminal 2, 3.
  • Each terminal 2, 3 is here “automatically connected” insofar as the clamping of the stripped core of the electrical conductor in the conductive cage of said terminal 2, 3 is ensured by an automatic clamping blade 4 (see figure 8 ) having a spring effect which automatically compresses said stripped core against a conductive wall of the conductive cage, without the intervention of any installer.
  • "Automatic" terminals are in some ways opposed to “screw” terminals for which an installer must act on a screw to tighten the stripped core of the electrical conductor against the conductive wall of the terminal's conductive cage.
  • the socket mechanism 1 also comprises an insulating cover 20, received in the base 10 so as to extend to the border between a rear part of the said base 10, which receives the terminals 2, 3 in their location 13, 14 respectively, and a front part of the base 10, which is intended to receive the insertion well of the trim.
  • cover 20 forms an intermediate bottom of base 10 which encloses terminals 2, 3 in their respective locations 13, 14.
  • the cover 20 is here formed by a generally rectangular plate whose front face is generally flat and extends substantially parallel to the bottom wall 12 of the base 10 and to the plane defined by the reception opening 15 (see figure 8 ). As shown in figure 6 , the cover 20 is pierced with three passage openings 25, 26 which extend opposite the functional parts of the terminals 2, 3: one of the passage openings 26 is intended to let the earth pin 3A of the male terminal 3 so that it extends into the insertion well of the trim, and the two other passage openings 25 are intended to let the pins of the electrical plug pass so that they can come into contact with the corresponding 2A reception sockets of the female terminals 2.
  • the current take-off mechanism 1 represented on the figure 6 also comprises a shutter 30 mounted to move between, on the one hand, a closed position in which it prohibits access to the female phase and neutral terminals 2, by interposing itself between the passage openings 25 of the cover 20 and the mouth of the corresponding reception cells of the female terminals 2, and, on the other hand, an open position in which it allows this access.
  • the shutter 30 thus protects the user from a possible electrical contact with the conductive elements housed in the rear part of the base 10 of the socket mechanism 1.
  • the current outlet mechanism 1 finally comprises a system 100 of keys for disconnecting its automatic terminals 2, 3.
  • each key 110, 120 of this system 100 is placed outside the base 10 opposite a window 19 of said base 10 (see figure 4 , 6 And 8 ) so that a disconnection element 111, 121 with which this key 110, 120 is provided passes through said window 19 and is positioned opposite the automatic clamping blade 4 of one of the terminals 2, 3 (see figure 8 ).
  • Voluntary (and direct) actuation of one of the keys 110, 120 to move it by a distance greater than or equal to its operational stroke, causes the displacement of the disconnection element 111, 121 which then opposes the thrust force exerted by the automatic clamping blade 4 of the terminal 2, 3.
  • the voluntary (and direct) actuation of the key 110, 120 makes it possible to disconnect the terminal 2, 3 by releasing the stripped core of the electrical conductor which was clamped in the conductive cage of terminal 2, 3 by the automatic clamping blade 4.
  • the key system 100 is, as such, part of the invention, and will be better described below with reference to the figures 1 to 3 .
  • the system 100 according to the invention will be described ready to be used in the socket mechanism 1 described above.
  • the terms “front” and “rear” are defined with respect to the gaze of the user turned towards the socket mechanism 1 when holding the socket mechanism 1 so that the reception opening 15 of the base 10 is placed at the top, the bottom wall 12 of the base 10 is placed at the bottom, and the side wall 11 of the base 10 in which the windows 19 are formed is placed facing it.
  • the term “front” designates the side of an element facing the user, opposite the base, while the term rear designates the side of an element facing the base 10.
  • “abo” the side of an element facing upwards, in the direction of the reception opening 15 of the base 10
  • “below” designates the side of an element facing the opposite, it that is to say facing the bottom of the base 10.
  • the system 100 here comprises two side keys 110 and a central key 120, attached to a common element which takes the form of a rotation shaft 130.
  • the system according to the invention is a single piece.
  • This configuration in which the keys 110, 120 are inseparable from the rotation shaft 130 facilitates the installation of the system in the base of the fitting mechanism, in a single step.
  • This one-piece configuration of the system 100 also avoids losing the keys 110, 120, which are often of small dimensions.
  • Each key 110, 120 of the system 100 comprises a plate 112, 122 generally flat, provided with a front face (clearly visible on the figure 1 ), facing the user, and a rear face (clearly visible on the figure 2 ) opposite the front face, which rear face is the one facing towards the base 10 when the system 100 is in place in the socket mechanism 1.
  • the front face of the plate 112, 122 may optionally bear visual indications allowing the user to know which terminal is placed behind the key 110, 120.
  • the front face of the central key 120 carries a visual indication 125 indicating that it is intended to be associated, in the socket mechanism 1, with the earth terminal 3.
  • each plate being of a different color, for example a blue plate for the button associated with the neutral terminal, a red plate for the button plate associated with the phase terminal and a green plate for the button associated with the earth terminal.
  • the rear face of the plate 112, 122 is that which carries the disconnection element 111, 121 of the key 110, 120 (see figure 2 And 3 ), intended to interact with the automatic clamping blade 4 of the terminal 2, 3.
  • This disconnection element 111, 121 here takes the form of a pin which extends generally perpendicular to a mean extension plane of the plate 112, 122.
  • the rotation shaft 130 to which the keys 110, 120 are linked is divided into sections 131, 132, and each key 110, 120 is rigidly linked to a section 131, 132 distinct from the rotation shaft 130.
  • the rotation shaft 130 of the system 100 here comprises two lateral sections 131 to which the side keys 110 are respectively linked, and a central section 132 to which the central key 120 is linked.
  • Each section 131, 132 has a generally cylindrical shape and is 'extends along a longitudinal axis L1, L2 (see figure 1 And 3 ).
  • the rigid link between each key 110, 120 and its section 131, 132 is formed by a link 135 (see figures 1 and 2 ) generally parallelepipedic whose section and the material in which it is formed guarantee rigidity.
  • the link 135 extends globally along a transverse axis T of the section 131, 132 to which it is connected, this transverse axis T being perpendicular to the longitudinal axis L1, L2 of said section 131, 132 (see figure 1 ).
  • the longitudinal and transverse axes L1, L2, T define the mean plane of extension of the plate 112, 122 of the key 110, 120 which is connected to said section 131, 132.
  • the link 135 connecting the key 110, 120 to its section 131, 132 is more specifically arranged in the median transverse plane of the section 131, 132, which is the plane perpendicular to the longitudinal axis L1, L2 of extension of the section 131, 132 and which cuts the section 131, 132 into two equal parts.
  • the rigid link 135 between each key 110; 120 and its section 131, 132 implies that the direct actuation by the user of any one of the keys 110, 120 causes the rotation, around its longitudinal axis L1, L2, of said section 131, 132 to which this key 110, 120 is attached, to move said key 110, 120 along a determined angular displacement.
  • each key 110, 120 is fixed with respect to the section 131, 132 to which it is rigidly linked, the direct actuation of the key 110, 120, by the user, sets the assembly formed by the key in motion. 110, 120 and the section 131, 132.
  • the angular displacement of the key 110, 120 thus generated around the longitudinal axis L1, L2 of the section 131, 132 to which it is linked depends directly on the force of action of the user on the key 110, 120.
  • the angular deflection of the key which corresponds to the operational stroke of said key 110, 120 is the minimum angular deflection of this key 110, 120 which is sufficient to unlock the terminal 2, 3 associated with this key 110, 120, that is to say to separate the automatic clamping blade 4 from the terminal 2, 3 of the conductive wall against which it naturally exerts its clamping action and against which it tends to come back.
  • the system 100 is said to be “pushy” insofar as the user must exert a pushing action on the front face of the plate of any of the keys to disconnect the terminal associated with this key 110, 120.
  • the system it is entirely possible for the system to be "pull-bar", that is to say that the user must exert a pulling action on any of the keys to disconnect the terminal associated with this key.
  • a mixed system which is both push and pull, each key being associated either with a disconnection mechanism by pushing action, or with a disconnection mechanism by pulling action.
  • the sections 131, 132 of the rotation shaft 130 are, remarkably, connected in pairs by connection zones 133, and each connection zone 133 is arranged so that the rotation of a section 131, 132, generated by the direct actuation of the key 110, 120 attached to this section 131, 132, keeps each adjacent section immobile, or causes an incident rotation of each adjacent section around its longitudinal axis L1, L2 to move the adjacent key attached to each adjacent section following an incident angular movement much less than the operational stroke of said adjacent key.
  • each connecting zone 133 is a physical part which forms a material and solid link between two adjacent sections 131, 132.
  • each connection zone 133 is an integral part of the rotation shaft 130.
  • a connection zone 133 is not constituted by an empty space or a "gap" separating two sections 131, 132.
  • connection zone 133 between two sections 131, 132 guarantees the independence of the keys 110, 120 of the system 100, which amounts to saying that it guarantees that the direct actuation of one of the keys makes it possible to unlock only the associated terminal. to this key, without inducing the unlocking of the other terminal(s) operable by the system, in particular that of the adjacent terminals.
  • the connecting zones 133 can be shaped in several different ways, described below.
  • the central section 132 of the rotation shaft 130 is intended to rotate around a first axis of rotation R2 (merged with the longitudinal axis L2) and the two lateral sections 131 of the rotation shaft 130 are intended to rotate around a second axis of rotation R1 (merged with the longitudinal axis L1), parallel and distinct from the first axis of rotation R2.
  • the sections 131, 132 therefore extend staggered from each other (see picture 3 ).
  • the central key 120 and the side keys 110 respectively linked to these sections 131, 132 are thus themselves offset along an antero-posterior axis (which extends from front to back), so that, always in top view , the free end of the disconnection elements 111 of the side keys 110 is located farther from the user than the free end of the disconnection element 121 of the central key 120 (see picture 3 ).
  • the front face of the pads 112 of the side keys 110 is set back, further from the user, than the front face of the pad 122 of the central key 120. This arrangement guarantees, despite the small dimensions of the pads 112, 122 of keys 110, 120, that the user presses the front face of a single plate 112, 122 when he wishes to actuate one of the keys 110, 120 of the system 100.
  • connection zone 133 comprises, on the one hand, a generally cylindrical central part 133A (see figure 2 And 3 ), which extends along a longitudinal axis L3 (see picture 3 ) parallel to the longitudinal axes L1, L2 of the sections 131, 132, and, on the other hand, two lateral parts 133B, 133C which extend on either side of this central part 133A, obliquely towards the section 131, 132 to which each of these side parts 133B, 133C is attached.
  • the central part 133A of the connection zone 133 is more particularly shaped to be received and held in an adjusted manner in the base 10 of the current pickup mechanism 1, at the level of a clamping cradle 17A (see figure 4 ) of this base 10.
  • a clamping cradle 17A see figure 4
  • the central part 133A is assembled by force in the clamping cradle 17A, for example by pressing, during the assembly of the system 100 on the base 10.
  • the clamping cradle 17A prevents the part central 133A of the corresponding connection zone 133 to be able to move in the base 10.
  • connection zone 133 When one of the keys 110, 120 of the system 100 is directly actuated by the user, the connection zone 133 is adapted, by the adjusted maintenance of its central part 133A in the clamping cradle 17A, to buttress when the operational stroke of said key 110, 120 is reached.
  • the connection zone 133 thus braced limits (or even prevents) the rotation of the section adjacent to the section 131, 132 to which the key 110, 120 actuated is linked, so that the induced rotation of said adjacent section does not allow the clamping blade to be moved.
  • automatic 4 of the neighboring terminal 2, 3 from a sufficient distance to disconnect said neighboring terminal 2, 3.
  • the connection zone 133 which arches, the key(s) adjacent to that which is actuated by the user does not move or moves little enough not to be operational(s).
  • At least one of the connecting zones between two adjacent sections is formed in a material with lower resistance to torsion than the rest of the rotation shaft.
  • the energy associated with the rotation of a section, generated by the direct actuation of the key attached to this section, is then totally absorbed. or in part, by the connection zone which twists, so that this energy does not propagate (or propagates little) on the adjacent section.
  • the direct actuation of a key does not induce any rotation of the adjacent section or, at the very least, limits this induced rotation so that the travel of the adjacent key is less than the operational travel of this key. adjacent.
  • the rotation shaft 130 of the system 100 further comprises at least two holding zones 134 by which said system 100 is intended to be held in the base 10 of the current take-off mechanism 1.
  • two holding zones 134 are partially coincident with the connecting zones 133 of the sections 131, 132. These two holding zones 134 are more precisely formed by the central parts 133A ( see figures 3 and 4 ) connecting zones 133, intended to be received in an adjusted manner in the clamping cradles 17A of the base 10 (see figure 4 And 5 ).
  • each additional holding zone 136 comprises more precisely, on the one hand, a recessed notch 136A in the rear of the rotation shaft 130, that is to say on the side of the rotation shaft 130 generally parallel to the rear face of the plates 112, 122 of the keys 110, 120, and, on the other hand, a bump 136B projecting forwards from the rotation shaft 130, that is to say on the side of the rotation shaft 130 generally parallel to the front face of said plates 112, 122.
  • Additional holding zones 136 are intended to be positioned in cradles 17B of the base 10 of the current take-off mechanism 1, which cradles 17B are shaped so that part of the base 10 enters the notch 136A of the holding zone 136 (see figure 4 And 5 ).
  • the configuration of the additional holding zones 136 in hollows and bumps makes it possible to maintain the offset of the axes of rotations R1, R2 of the sections 131, 132 of the rotation shaft 130 while limiting the antero-posterior offset of the additional holding zones 136 relative to the other holding areas 134 of the system 100.
  • the offset of the axes of rotation R1, R2 of the sections 131, 132, combined with the positioning of the holding zones 134, 136 (and therefore the positioning of the central parts 133A of the connecting zones 133) allow, for an operational stroke of a side key 110 equivalent to an angular deflection of 17°, to contain the incident angular deflection of the central key 120 to 4°.
  • At least one of the keys are also provided with a clamping element 115 intended to limit the travel of said key 110 when it is actuated.
  • the clamping element 115 extends from the rear face of the wafer 112 of the key 110, in a direction perpendicular to the mean plane of extension of the wafer 112.
  • the clamping element 115 comprises more precisely two studs 115, arranged on either side of the disconnection element 111, 121.
  • the studs 115 of the clamping element are intended to come into abutment against the external face of a portion 11A of the side wall 11 of the base 10 (see figure 6 ). It is when this stop is reached by the studs 115 that the user is assured that the operational travel of the side key 110 has been reached.
  • the rotation shaft 130 finally comprises, at each of its ends, an anti-vibration element 139.
  • the anti-vibration element 139 forms an end piece at each end of the rotation shaft 130 (see figures 1 to 3 ).
  • the anti-vibration element 139 takes the form of an asymmetrical ovoid element, with a front part 139A having a size smaller than the size of a rear part 139B of said element (see figures 1 and 2 ).
  • This anti-vibration element 139 is intended to be received in a corresponding notch 5 of the base 10 (see figure 4 And 5 ) so as to prevent the system 100 from changing orientation during the assembly of the socket mechanism 1.
  • the various elements included in the fitting mechanism 1 (see figure 6 ), in particular the base 10, the cover 20, the shutter 30, the system 100, and the terminals 2, 3 are obtained separately, then assembled together to form the socket mechanism 1.
  • the socket mechanism 1 shown in the figure 6 we begin by assembling the system 100 on the base 10 (see figure 4 ). To do this, the system 100 is introduced into the base 10 via the reception opening 15 of said base 10, so that, on the one hand, the pads 112, 122 of the keys 110, 120 are inserted into openings 7, 8 provided in the base 10 and that the disconnection elements 111, 121 enter the corresponding windows 19 of the base which open into said openings 7, 8, and, on the other hand, that the holding zones 134, 136 enter in force in the cradles 17A, 17B of the base 10 (see figure 5 ). The anti-vibration elements 119 of the system 100 are then received in their respective notches 5 (see figure 5 ).
  • the terminals 2, 3 are then assembled in the corresponding slots 13, 14 of the base 10. During this insertion, the terminals 2, 3 push on the disconnection elements 111, 121 of the keys 110, 120. However, this insertion does not does not pivot the entire system 100, the orientation of which is maintained thanks to the anti-vibration elements 119 in engagement with the notches 5.
  • each disconnection element 111, 121 When the terminals 2, 3 are in place in the base 10, the free end of each disconnection element 111, 121 does not interact with the automatic clamping blade 4 of the corresponding terminal 2, 3 as long as this terminal 2, 3 is not connected to the network (see figure 8 ). It is only when said terminal 2, 3 is connected to its electrical conductor that the automatic clamping blade 4 is positioned in contact with the free end of the disconnection element 111, 121. It is in this position that the actuation of one of the keys by direct pressing of the user on the key 110, 120 makes it possible to disconnect the corresponding terminal 2, 3, without the rotation possibly induced on the nearest adjacent key being sufficient to in turn move the automatic clamping blade 4 of the neighboring terminal 2, 3, to the point of disconnecting this neighboring terminal.
  • the base 10, the cover 20, the shutter 30, and the system 100 are obtained by molding a thermoplastic material which is chosen to be a good electrical insulator and to be sufficiently rigid and to have a desired mechanical strength.
  • Each element can be formed from its own thermoplastic material, identical to or different from that of the other elements.
  • Each element may itself be formed from a plurality of different thermoplastic materials capable of being molded.
  • System 100 can be formed from three different thermoplastic materials which have identical formulations, except for their pigmentation which differs so that each key 110, 120 of the system 100 has a different color.
  • system 100 according to the invention is obtained according to a manufacturing process which forms part of the invention.
  • thermoplastic material is carried out to manufacture in one piece each key 110, 120 with the section 131, 132 of rotation shaft 130 to which it is rigidly linked.
  • the system 100 comprises three keys 110, 120, three injections are made here, at three distinct points of the mould. For example, the three injections are carried out simultaneously or almost simultaneously. It is then necessary to make sure of the place where the two weld lines are positioned between the different flows of material, so as to guarantee that these places are indeed located in the connection zones between two adjacent sections.
  • This first embodiment is found in the system 100 represented on the figure 9 , in which the weld line S between the flows of injected material is positioned in the middle of each central part 133A of the connecting zone 133 between two adjacent sections 131, 132.
  • the weld line S is a section of the shaft of rotation 130 of the system 100 which is more fragile than the rest of the rotation shaft 130 so that, the repeated actuation of the keys 110, 120, combined with the connection zone 133 which bows, risks to break the system 100 at the level of this weld line S.
  • each connection zone 133 guarantees that this weld line S is found at the heart of one of the cradles clamping 17A of the base 10, so that, even if the system 100 breaks at the weld line S, the rotation shaft 130 remains held in the clamping cradle 17A, on either side of the line of welding S, and each key 110, 120 then remains operational, held in the base 10.
  • the injection points are ideally located at similar places in the mold, along the median transverse axis T of the sections 131, 132 correspondents.
  • the injection points are positioned on top of the rotation shaft 130, in alignment with the link 135 connecting the section 131, 132 to its button 110, 120 (see the arrows F1 on the figures 1 and 2 ).
  • Another possible example is to position the injection points at the junction between the disconnection element 111, 121 and the rear face of each plate 112, 122 (see the arrows F2 on the figure 2 ).
  • thermoplastic materials are injected to form the system 100 according to the first embodiment of the method
  • those skilled in the art will be able to adjust the arrangement of the injection points and/or the moment of injection of the thermoplastic materials, depending on the speed of movement of each thermoplastic material in the mold so that the weld line S between the different flows of thermoplastic material is always in the connection zone 133, preferably in the center of the central part 133A of said connection zone 133
  • the speed of movement of the thermoplastic material depends in particular on the viscosity of this material.
  • the method it is planned to carry out an injection molding of a first part of the system 100 comprising a key connected to its rotation shaft section, then to carry out on this first molding an overmolding by injection of a second part of the system 100 comprising a key linked to its rotation shaft section 130, so that the first and second parts of the system 100 are connected to each other at the level of the rotation shaft 130, in the connecting zone 133 between said sections.
  • the system 100 comprises three keys 110, 120, it is considered that the molding of the first part 100A of the system corresponds to the molding of a central part of the system 100.
  • the overmolding of two second parts 100B of the system 100 on either side of the first part 100A.
  • the second parts 100B are identical and correspond to the side parts of the system 100 (see figures 10 and 11 ).
  • the first part 100A of the system 100 comprises a first piece of the rotation shaft 130 which includes the central section 132 linked to the central key 120, and, on either side of said central section 132, a part of each of the connecting zones 133 by which this central section 132 is linked to the lateral sections 131.
  • Each second part 100B of the system comprises for its part a second piece of the rotation shaft 130 which includes the lateral section 131 linked to its side key 110, as well as, at one end of this lateral section 131, part of the connection zone 133 provided between this lateral section 131 and the central section 132, and, at the other end of this lateral section 131, the anti- vibration 139, and one of the holding zones 136 of the system 100.
  • the first piece of rotation shaft 130 molded with the first part 100A of the system 100 comprises, at each end by which it is intended to be linked to the second piece of rotation shaft 130 of one of the second parts 100B of the system 100, hooking means 137A, 137B intended to promote the hooking of the thermoplastic material during the overmolding of said second part 100B.
  • the second piece of rotation shaft 130 includes, of course, attachment means 138A, 138B which are of complementary shape to that of the attachment means 137A, 137B of the first piece.
  • a first example of attachment means of complementary shapes is visible on the figure 10 , in the form of a spherical groove 137B receiving a spherical stud 138B.
  • a second example of attachment means of complementary shapes is visible on the figure 11 , in the form of hooking lugs 137A, 138A.
  • the junction between the first and second pieces of the rotation shaft 130, coming from the first and second parts 100A, 100B of the system 100 is a fragile zone of the rotation shaft 130, which risks breaking during multiple actuations of the keys 110, 120 of the latter.
  • the fact of providing that the attachment means 137A, 137B, 138A, 138B of complementary shapes are located in the central part 133A of the connection zone 133 guarantees that, even in the event of the rotation shaft 130 of the system 100 breaking at this junction, it will still be held in the clamping cradle 17A of the base 10, on either side of the broken junction and each key 110, 120 will then remain operational, held in the base 10.
  • each section of the rotation shaft has a separate axis of rotation, instead, as is the case in the example shown, that the two lateral sections have the same axis of rotation.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP22205814.1A 2021-12-06 2022-11-07 Tastenanordnung zum automatischen trennen von anschlüssen, gerätemechanismus mit dieser anordnung und verfahren zur herstellung der anordnung Pending EP4191796A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2113022A FR3130081A1 (fr) 2021-12-06 2021-12-06 Système de touches pour la déconnexion de bornes automatiques, mécanisme d’appareillage comportant ce système, et procédé de fabrication de ce système.

Publications (1)

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EP4191796A1 true EP4191796A1 (de) 2023-06-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20013652U1 (de) * 2000-08-09 2001-12-13 Adels-Contact Elektrotechnische Fabrik GmbH & Co KG, 51469 Bergisch Gladbach Elektrische Klemmeneinrichtung
US20130143427A1 (en) * 2011-12-01 2013-06-06 Schneider Electric USA, Inc. Electrical wire and sheet-metal connector
DE102015118032A1 (de) * 2015-10-22 2017-04-27 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE202017100907U1 (de) * 2017-02-20 2018-05-24 Electro Terminal Gmbh & Co Kg Klemme
EP3522303A1 (de) 2018-02-05 2019-08-07 Schneider Electric Industries SAS Anschlussblock
EP3657605A1 (de) * 2018-11-22 2020-05-27 Dinkle Enterprise Co., Ltd. Klemmleiste mit seitlichen elastischen griffen
EP3836315A1 (de) * 2019-12-10 2021-06-16 Legrand France Steckdose

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20013652U1 (de) * 2000-08-09 2001-12-13 Adels-Contact Elektrotechnische Fabrik GmbH & Co KG, 51469 Bergisch Gladbach Elektrische Klemmeneinrichtung
US20130143427A1 (en) * 2011-12-01 2013-06-06 Schneider Electric USA, Inc. Electrical wire and sheet-metal connector
DE102015118032A1 (de) * 2015-10-22 2017-04-27 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE202017100907U1 (de) * 2017-02-20 2018-05-24 Electro Terminal Gmbh & Co Kg Klemme
EP3522303A1 (de) 2018-02-05 2019-08-07 Schneider Electric Industries SAS Anschlussblock
EP3657605A1 (de) * 2018-11-22 2020-05-27 Dinkle Enterprise Co., Ltd. Klemmleiste mit seitlichen elastischen griffen
EP3836315A1 (de) * 2019-12-10 2021-06-16 Legrand France Steckdose

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