ES2592627T3 - Power outlet equipped with two shutters - Google Patents

Abstract

Power outlet (1) comprising: - a box (10) housing at least two connection terminals (20, 30), - a trim (100) mounted on the front of the box (10) and presenting two access openings (172, 173) to said connection terminals (20, 30), - a rear shutter (60) comprising two wings (62, 63), which is movable between a closed position in which its wings (62, 63) are interposed between the access openings (172, 173) and said connection terminals (20, 30) to prevent access to said connection terminals (20, 30) and an open position in which the separated from said access openings (172, 173) to allow this access, characterized in that it comprises a front shutter (150), different from the rear shutter (60) and comprising two wings (152, 153), which is movable between a closed position in which its wings (152, 153) are interposed between the access openings (172, 173) and said connection terminals (20, 30) to prevent access to said edges connection points (20, 30) and an opening position in which they are separated from said access openings (172, 173) to allow this access, and because the rear shutter (60) and the front shutter (150) are respectively fixed to said box (10) and to said trim (100), so that when the trim (100) is removed from the box (10), the front shutter (150) remains assembled to the trim (100) and the rear shutter (60) remain assembled to box (10).

Description

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Power outlet equipped with two shutters.

Technical field to which the invention relates

The present invention generally relates to the safety of electrical installations.

It refers more particularly to an outlet as defined in the preamble of claim 1. Prior art

From the FR 2 886 775 an electrical outlet such as the one mentioned above is known, in which the bezel defines a receiving cavity of an electrical plug and comprises a moving flap in translation in the cavity. When no electrical plug is inserted into the outlet, this mobility allows the lid to remain aesthetically flush with the wall on which the outlet is installed.

In this document, the box is intended to house a cradle that is open at the front and that receives the rear shutter. The cradle rests again against the back face of the bezel, so that the back shutter is held in the cradle by the back face of the bezel itself.

Currently, some beauties of different types are proposed, which in particular have different colors. It often happens that the user wishes to change the bezel of a wall outlet already installed in a wall to adapt it, for example, to a new color of wall paint.

In the case of the aforementioned power outlet, if the user removes the bezel, it therefore releases direct access to the connection terminals.

Thus, if the user wishes to change the bezel of the power outlet, it is previously necessary to cut the power supply from the power outlet, to remove the power outlet from its wall bracket, which disengaged the bezel from the box, keeping this last horizontally, so that the rear shutter does not come out of the box, and then replace this bezel with a new trim of the appropriate color.

It is therefore understood that the beautification change operation is long and annoying to perform.

On the other hand, it is known from document FR 2 833 111, an outlet cover comprising a bezel that has a reception socket of an electric plug, a polarization plug that is fixed at the back of the bottom of the cavity, a support that "borders the rear face" of the bottom of the cavity, a shutter comprising two wings that each have a flat part and a ramp, and that is mounted mobile in a housing provided in the hollow in the rear part of the support, and a plate that closes in the rear part the housing delimited by the support.

In this document, the shutter is therefore mounted in solidarity with the insulating box.

On the other hand, FR 2 833 111 is known as an outlet cover comprising a bezel that has a reception socket of an electric plug, a polarization plug that is fixed at the rear of the bottom of the cavity, a support that borders the rear face of the bottom of the cavity, a shutter comprising two wings and which is mounted mobile in a housing provided in the recess in the back of the support, and a plate that closes in the part rear the housing delimited by the support.

It is also known from document FR 2 876 508 an outlet comprising a box that houses two connection terminals, and a trim that has a receiving cavity of an electrical outlet. In an embodiment of this outlet, a shutter is provided that is housed in the box itself, under the lid. In another mode, the shutter is mounted mobile between two plates fixed in the box.

Finally, it is known from WO 2010076906 an outlet comprising a socket that delimits an insertion cavity of an electrical plug and that supports in its bottom a terminal strip, a guide that then extends to the center of the cavity and that is fixed to the terminal strip, a shutter that is mounted in rotation on the glutton, and a bezel comprising a circular face inserted into the cavity delimited by the socket and a rod that extends at the rear of the face and which is inserted in the guide to guide the sliding of the bezel in the cavity.

Object of the invention

In order to remedy the aforementioned drawback of the prior art, the present invention proposes a

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new modular and evolutionary outlet.

More particularly, an outlet as defined in claim 1 is proposed according to the invention.

It should be noted, first, that the adjective "solidary" is used in claim 1 to mean that if the bezel is removed from the box, the rear shutter remains housed in the box, whatever the position of the latter, and the front shutter remains attached to the bezel, regardless of the position of the latter.

The solidarity of the rear shutter to the box thus prevents the rear shutter from falling out of the box during disassembly of the bezel. It also allows the rear shutter to remain active even when the bezel is removed. In this way, the bezel can be disassembled when the power outlet is still electrically powered and is upright on a wall.

When the rear shutter is then positioned at a distance from the bezel, a space appears between the wings of the back shutter and the openings provided in the bezel for the passage of the plugs of an electrical plug. This space may, in particular, be important when the bottom of the receiving cavity is movably mounted on the side wall of the cavity.

The front shutter, which is located directly at the rear of the openings provided in the trim, then prevents dust particles from entering the box through this space.

The solidarity of the front shutter to the bezel allows, on the other hand, to prevent the front shutter from falling during disassembly of the bezel.

Other advantageous and non-limiting characteristics of the outlet according to the invention are defined in claims 2 to 15.

Detailed description of an embodiment example

The following description, in connection with the accompanying drawings, given by way of non-limiting examples, will make it well understood what the invention consists of and how it can be carried out.

In the attached drawings:

- Figure 1 is a schematic semi-exploded perspective view of the outlet according to the invention;

- figure 2 is an exploded perspective schematic view of the embellisher of the outlet of figures 1;

- Figure 3 is a schematic perspective view of the base of the bezel of Figure 2;

- Figure 4 is a schematic perspective view of the front plug of the outlet of Figure 1;

- Figure 5 is a schematic perspective view of the main spring of the outlet of Figure 1;

- Figures 6 and 7 are schematic perspective views of the outlet of Figure 1, in which the movable wing of the bezel is respectively shown in the waiting position and in the inserted position;

- Figures 8 and 9 are schematic views in section according to planes A-A and B-B of Figures 6 and 7; Y

- Figure 10 is a schematic sectional view of the outlet of Figure 7 in which the movable fin is in the inserted position and the rear shutter is in a tilted position.

In the description, the terms "front" and "rear" will respectively designate the side of the user-oriented electrical equipment, when this equipment is used, and the opposite side. By way of example, when the electrical equipment is installed on a wall wall of a room, the front part of an element of the electrical equipment will designate the side of this element that is turned towards the interior of the room, and the rear part will designate the side of this element that is turned towards the outside of the room.

In Fig. 1, a power outlet 1 is shown comprising a receiving cavity 101 that allows receiving an electrical plug for the connection of this electrical plug to the local electrical network.

As will be explained in more detail in the rest of this description, the outlet 1 represented in the figures

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It is adapted to be housed in an electrical box (not shown) embedded or applied in cantilever on any wall. As a vantage point, it may be an electrical outlet located at the end of an extension or also an electrical outlet belonging to a terminal block. The principle of the invention described herein would then not be modified.

As Figure 1 shows, this outlet 1 comprises a box 10 closed at the front by a trim 100 to delimit with it a receiving housing 15 of at least two connection terminals 20, 30.

To allow the electrical plug to be connected to this outlet 1, the bezel 100 has at least two access openings to the connection terminals 20, 30.

For the electrical safety of the outlet 1, and in order, in particular, to prevent a child from inserting a pencil into one or the other of the connection terminals 20, 30, the box 10 houses a rear shutter 60 comprising two wings 62, 63 and which is movable between a closed position in which its wings 62, 63 are interposed between the access openings of the bezel 100 and said connection terminals 20, 30 to prevent access to said connection terminals 20 , 30, and an opening position in which they are separated from said access openings to allow this access.

According to particularly advantageous features of the invention, this rear shutter 60 is in solidarity with the case 10, and the power outlet 1 comprises a front shutter 150 comprising two wings 152, 153 (Figure 2), which is in solidarity with the bezel 100 and which is movable between a closing position in which its wings 152, 153 are interposed between the access openings provided in the bezel 100 and said connection terminals 20, 30 to prevent access to said connection terminals 20, 30, and an opening position in which they are separated from said access openings to allow this access.

By "solidarity" is meant that the front shutter 150 is attached to the bezel 100 and that the back shutter 60 is attached to the case 10 such that, when the bezel 100 is removed from the case 10, the front shutter 150 remains assembled. in the bezel 100 and the rear shutter 60 remains assembled in the case 10.

Thanks to these characteristics, the rear shutter 60 thus retains its electrical protection function when the bezel 100 is removed from the box 10. The assembly and reassembly of the outlet 1 are, on the other hand, easier.

In the embodiment of the invention represented in the figures, the box 10 has an overall shape of a rectangular parallelepiped open at the front.

As shown in FIG. 1, it thus comprises a bottom 11 bordered by a side wall 12 having four sides, opposite two by two, which rise from the bottom 11 substantially perpendicular to it.

Two opposite sides of the side wall 12 of the box 10 have, in the third part approximately its height, a backrest 17. These two backs 17 together induce a widening of the section of the box 10 forward.

This box 10 comprises, on the other hand, mounting means on a frame-shaped equipment support (not shown), which in turn is arranged to be fixed in the electrical box.

These mounting means comprise, on the one hand, a peripheral track 13 that borders the edge of the front opening of the box 10 and which is adapted to rest against the front face of the equipment support and, on the other hand, a fitting means 14 which are arranged on two opposite sides of its side wall 12 and which are adapted to engage the rear face of the equipment support.

The box 10 also comprises two internal partitions 16 that rise from its bottom 11, orthogonally thereto, by a third of its height.

These two internal partitions 16 extend in parallel, such that their leading edges 16A extend from the top of one of the backrests 17 to above the other of the backrests 17 of the box 10.

The case 10 is made in this case in one piece with its internal partitions 16 and its mounting means, of insulating material, for example by molding a plastic material.

As shown in Figure 1, the two internal partitions 16 delimit with the side wall 12 of the box 10 three receiving housings of the connection terminals 20, 30, 40 of the outlet 1.

In fact, three connection terminals are provided in this case, including two identical phase 20 and neutral 30 terminals, and one earth terminal 40.

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As they are represented, these connection terminals conform to the Franco-Belgian standard. As a variant, these connection terminals could conform to another standard, for example the Germanic "shuko" standard, without affecting the operation of the present invention.

Each of these connection terminals 20, 30, 40 comprises a metal socket 22, 32, 42 by which it is fixed to the box 10 and connected to the local electrical network, and a functional part by which the electrical plug can be connect to outlet 1.

The functional parts of the phase and neutral terminals 20, 30, each thus comprise two metal sheets folded in such a way that they delimit between each other a receiving socket 21, 31 of a plug of the electrical plug.

The functional part of the earth terminal 40 comprises, in turn, a cylindrical pin 41 that rises from its metal socket 42.

As shown in FIG. 1, the rear shutter 60 is mounted mobile in translation in the box 10 along a transverse axis A2 parallel to the front edges 16A of the internal partitions 16 of the box 10, to close or open the access to phase 20 and neutral 30 terminals.

This rear shutter 60 has a global rectangular plate shape, with a groove 61 in the center of one of its longitudinal edges 67B.

The two wings 62, 63 of this rear shutter 60 are then defined on either side of this groove 61.

To prevent access to phase 20 and neutral 30 terminals when the rear shutter 60 is in the closed position, the wings 62, 63 of this rear shutter 60 are interposed between the access openings of the bezel 100 and the phase terminals 20 and neutral 30 housed in box 10.

To open the access to these terminals, the rear shutter 60 is moved along the transverse axis A2 until its wings 62, 63 release the passage towards the phase 20 and neutral 30 terminals.

The rear shutter 60 is supported by its rear face on the front edges 16A of the two internal partitions 16 of the box 10, although they extend parallel to the bottom 11 of this box 10. It is arranged in the box 10 such that its two lateral edges 66A, 66B extend parallel to the internal partitions 16. This rear shutter 60 comprises means for guiding in translation along the transverse axis A2.

These guiding means are formed herein by two ribs 68 provided in cantilever of their rear face, at a distance between them equal to approximately the distance between the outer faces of the two internal partitions 16 of the box 10.

Thanks to these guiding means, the rear shutter 60 is perfectly guided in translation along these internal partitions 16.

The box 10 comprises, on the other hand, first stop means, which allow to block the translation of the rear shutter 60 towards its opening position, when tilted, and a second stop means which allow to block the translation of the rear shutter 60 towards its closing position, when it closes again.

These first and second stop means will be described in more detail in the continuation of this description.

For its drag from its closed position to its open position, when the electric plug is inserted into the socket 1, the rear plug 60 has two inclined sides 64, 65 on its two wings 62, 63.

These two inclined sides 64, 65 are arranged on either side of the groove 61, along the longitudinal edge 67B corresponding to the rear shutter 60, such that they are interposed between the access openings provided in the bezel 100 and the phase 20 and neutral terminals 30 housed in the case 10 when the rear shutter 60 is in the closed position.

The inclination of these inclined sides 64, 65 is provided in such a way that, when the plugs of the electric plug are inserted through the access openings provided in the bezel 100 and are supported on these inclined sides, they cause the rear shutter to move 60 towards its opening position, which allows these plugs to freely access the phase 20 and neutral 30 terminals of the outlet 1.

In order for the rear shutter 60 to return to the closed position, when the plugs of the electric plug are removed from the outlet 1, elastic return means 50 of this rear shutter 60 are provided.

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These return means comprise, in this case, a compression spring 50 that is based on a groove provided in the front face of one of the backrests 17 of the case 10 and that is interposed between the inner face of the side wall 12 of the box 10 and a projection (not visible) provided on the rear face of the rear shutter 60.

To lock the rear shutter 60 in the closed position when an element is introduced through only one of the access openings provided in the bezel 100, this rear shutter 60 is movably mounted in the box 10 about at less an axis parallel to said transverse axis A2 and means for blocking the shutter are provided when inclined.

In this case, mobile is more precisely mounted in tilting around two different axes and parallel to the transverse axis A2.

For this, it is provided on either side of the front edges 16A of the internal partitions 16 of the box 10, recesses that allow the rear shutter 60 to swing from one side or the other of these front edges 16A, from a position straight parallel to the bottom 11 of the box 10 (figure 9) to one or the other of the two tilted positions (figure 10).

To limit its tilting, the rear shutter 60 comprises teeth 69 protruding from its side edges 66A, 66B, which are adapted to rest against the leading edges of supplementary partitions 18 provided in the box 10.

To prevent the rear shutter 60 from entering the opening position when it is tilted, the front edges of these supplementary partitions 18 have pins 19 (visible in Figure 8) protruding forward, which allow the teeth 69 of the rear shutter 60 to be locked. along the transverse axis A2. These pins 19 form in this case the first stop means.

In order not to interfere with the teeth 69 of the rear shutter 60 when it is in a straight position, these pins 19 have reduced heights that leave the rear shutter 60 free to slide into its open position.

In this way, the rear shutter 60 releases access to the phase 20 and neutral 30 terminals only when the two plugs of the electrical plug are simultaneously inserted into the outlet 1.

The rear shutter 60 is in this case made of a single piece by molding an insulating plastic material.

As shown in FIG. 1, a cassette 80 is provided on the other hand, designed to keep the rear shutter 60 in support on its rear face against the free edges 16A of the internal partitions 16 of the box 10.

This cassette 80, made of insulating material, comprises a rectangular front wall 81 that extends parallel to the bottom 11 of the box 10, and a ledge 85 that borders this front wall 81.

This front wall 81 and this edging edge 85 thus form a housing for the rear shutter 60, which is designed to keep the latter in support against the front edges 16A of the internal partitions 16 of the box 10, without thereby impeding mobility in translation of this shutter along the transverse axis A2.

The front wall 81 of this cassette has three openings 82, 83, 84, located on the axis of the access openings provided in the bezel 100, for the passage of the cylindrical pin 41 of the earth terminal 40 and for the passage of the electrical plug plugs.

The caedizo edge 85 of the cassette 80 is provided to rest, on the other hand, by its free rear edge on the front faces of the backrests 17 of the case 10 and on the front edges of the supplementary partitions 18.

This cassette 80 comprises, on the other hand, fixing means to the box 10.

These fixing means are formed in this case by four anti-tearing hooks 86 located in the four corners of the cassette 80, which extend in the extension of the edging edge 85 and which are folded in a forward U, to cooperate by engaging with ribs 12A provided protruding from the inner face of the side wall 12 of the box 10.

As Figure 1 shows well, to ensure good coupling and good maintenance of the anti-tear hooks 86 on the ribs 12A, the latter are each bordered by two flanks that extend orthogonally to the corresponding side of the side wall 12 from the box 10.

The second stop means which allow to block the travel in translation of the rear shutter 60, when it passes to its closed position, are supported by this cassette 80.

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These second stop means in particular in this case comprise ribs 80 (not visible) protruding from the rear face of the front wall 31 of the cassette 80, against which one of the longitudinal edges 67B of the rear shutter 60 rests when the shutter It is in the closed position.

The bezel 100 and the front shutter 150 are shown in detail in Figure 2.

The trim 100 in this case comprises two parts, a socket 110 and a mobile flap 170 movable mounted on the socket 110.

The socket 110 comprises a cylindrical side wall 112 of revolution around the insertion axis A1, which is open forward and which is closed at the rear by a bottom wall 111 to delimit an insertion cavity 101 of the electrical outlet.

As shown in Figure 3, the bottom wall 111 has two openings 118 for the passage of the plugs of the electrical plug in the phase 20 and neutral terminals 30 and an opening 118A for the passage of the cylindrical pin 41 of the terminal block. earth 40.

As shown in Figure 2, the side wall 112 is externally bordered at its front end by an annular flange 114, in turn bordered by a ledge edge 115 arranged to rest on the front face of the peripheral passage 13 of the box 10.

The base 110 of the bezel 100 then comprises mounting means on the box 10, which in particular allow the caedizo edge 115 of the base 110 to be held in support against the front face of the peripheral passage 13 of the box 10.

These mounting means comprise in this case two protruding elements 119 (see Figure 8) of the outer face of the side wall 112 of the socket 110, which are located opposite to the coupling axis A1 and which are adapted to engage on the coupling areas provided in correspondence with the side wall 12 of the box 10.

As shown in FIG. 2, the mobile flap 170 comprises, in turn, a disk-shaped main plate 171, the dimensions of which are provided so that the section of the insertion cavity 101 is formed and thus forms the bottom of this cavity.

The three access openings 172, 173, 174 mentioned above provided in the bezel 100 are made in this main plate 171. Its dimensions and positions are adjusted to allow the passage of the plugs of the electrical plug.

This mobile flap 170 is mounted mobile in translation in this insertion cavity 101 along the insertion axis A1, between two end positions represented in Figures 6 and 7.

As Figure 2 shows, the main plate 171 is partially bordered by a sliding wall 175 designed to be applied against the inner face of the side wall 112 of the socket 110 in order to guide the translation of the moving flap 170 along this side wall 112, between its two extreme positions.

In one of these extreme positions, referred to below as the inserted position (Figures 7 and 9), the main plate 171 of the movable flap 170 extends behind the front face of the annular flange 114 of the socket 110 of the bezel 100.

In this introduced position, the rear edge of the sliding wall 175 of the mobile fin 170 abuts against the bottom wall 111 of the socket 110. The access openings 172, 173 provided in the mobile fin 170 for the passage of the pins of the The electric plug extends in the vicinity of the wings 62, 63 of the rear shutter 60, and the cylindrical pin 41 of the ground terminal 40 passes through the access opening 174 of the moving flap 170.

In another extreme position, referred to below as the waiting position (Figures 6 and 8), the main plate 171 of the movable flap 170 extends flush with the front face of the annular flange 114 of the socket 110 of the bezel 100.

As Figures 2 and 8 show, in order to lock the main plate 171 butt forward when it is moved from its inserted position to its waiting position, the movable flap 170 comprises two tabs 176 that extend in the extension of the cavity wall 175, backwards, in a length greater than the distance that separates the two extreme positions of the mobile fin 170.

These two tabs 176 each have an outer face arranged to be applied against the inner face of the side wall 112 of the socket 110, and an inner face that carries, in the vicinity of the free end of the tongue 176, a retaining tooth 177.

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The bottom wall 111 of the socket 110 has, in correspondence, two slots 116 (Figures 3 and 8) into which the two tabs 176 are inserted.

In this way, the two retaining teeth 177 abut against the rear face of the bottom wall 111 of the socket 110 when the mobile fin 170 reaches its waiting position, which allows the mobile fin 170 to be retained in this position.

As shown in Figure 2, the front shutter 150 is mounted mobile in rotation with respect to the bezel 100 around the introduction axis A1, to close or open the access to the phase 20 and neutral 30 terminals.

This front shutter 150 has, for this purpose, a T-shape, with a tubular shaft foot 151 confused with the coupling shaft A1, topped with a rectangular flat plate 156 extending in an orthogonal plane to this coupling shaft A1 .

The two wings 152, 153 of this front shutter 150 are then formed by the two ends of this flat plate 156.

These wings 152, 153 are arranged with respect to each other in such a way that they interpose between the access openings 172, 173 of the moving flap 170 and the phase 20 and neutral terminals 30 housed in the case 10 to prevent the access to these terminals when the front shutter 150 is in the closed position.

To allow access to these terminals, the front shutter 150 rotates around the coupling shaft A1 until its wings 152, 153 completely free the passage to the phase 20 and neutral 30 terminals.

The socket 110 comprises rotating guiding means of the front shutter 150 about the coupling shaft A1.

These guiding means are formed in this case by a tubular shaft 113 that is extruded from the center of the bottom wall 111 of the socket 110, towards the rear, and which has an internal diameter approximately equal to the diameter of the foot 151 of the front shutter 150. This tubular shaft 113 is closed in this case at the rear and open at the front to allow the foot 151 of the front plug 150 to be inserted into it.

Thanks to these guiding means, the front shutter 150 is perfectly guided in rotation and in translation relative to the bezel 100 along the coupling shaft A1.

The socket 110 on the other hand comprises stop means which allow to block the rotation of the front shutter 150 both in one direction (in the closed position) and in the other direction (in the open position).

As Figure 3 shows, these stop means in the open position in this case comprise two opposite grooves 117 that extend in the recess the side wall of the tubular shaft 113, parallel to the coupling shaft A1, and which have cross sections trapezoidal

As Figure 4 shows, the foot 151 of the front shutter 150 corresponds to two opposite ribs 157 that extend in projection of the side wall of the foot 151, parallel to the coupling axis A1, and which have trapezoidal cross sections of reduced widths with respect to those of the grooves 117.

The widths of the ribs 157 and grooves 117 are provided, more precisely, such that the lateral faces of the ribs 157 of the foot 157 of the front shutter 150 abut against the inner lateral faces of the grooves 117 of the tubular shaft 113 of the socket 110 when the front shutter 150 reaches its open position.

As it appears in Figure 8, the stop means of the front shutter 150 in the closed position are, in turn, formed by ribs 179 which are provided protruding from the rear face of the main wall 171 of the mobile fin 170, and against which the longitudinal edges of the front shutter 150 are supported when the shutter is in the closed position.

As Figure 2 shows, for its drag in rotation from its closed position to its opening position when the electric plug is inserted into the outlet 1, the front shutter 150 has two inclined sides on its two wings 152, 153 154, 155.

These two inclined sides 154, 155 are located on the wings 152, 153 in such a way that they interpose between the access openings 172, 173 of the moving flap 170 and the phase 20 and neutral terminals 30 housed in the box 10 when the front shutter 150 is in the closed position.

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They are arranged on either side of the coupling shaft A1 and each lead to one of the longitudinal edges of the flat plate 156.

The inclination of these inclined sides 154, 155 is provided in such a way that, when the plugs of the electric plug are inserted through the access openings 172, 173, and are supported on these inclined sides, they cause the front shutter to rotate 150 towards its opening position, which allows these plugs to freely access the phase 20 and neutral 30 terminals of the outlet 1.

As Figure 4 shows, these inclined sides generate excess thicknesses on the rear faces of the wings 152, 153 of the front shutter 150.

In order to avoid that, when the moving flap 170 is in the inserted position, the wings 152, 153 of the front shutter 150 do not interfere with the bottom wall 111 of the socket 110 of the trim, the openings 118 provided in this bottom wall 111 They are widened. They are in this case sufficiently widened so that said excess thicknesses can move freely when the front shutter 50 rotates between its open and closed positions.

Here, advantageously, the front shutter 150 comprises means for locking the moving flap 170 in the waiting position, which are unlocked only in favor of the movement of the front shutter 150 from its closed position towards its opening position.

These locking means allow a simple support on the moving flap 170 to push it back when the front shutter 150 is still in the closed position.

In this case, these locking means are formed by the rear end faces 157A of the ribs 157 provided along the foot 151 of the front shutter 150 (Figure 2), which are adapted to rest against the bottom wall 111 when the front shutter 150 is in the closed position and when, with the moving flap 170 in the waiting position, an effort is applied to the front face of its main wall 171.

These ribs 157 are, however, oriented in such a way that, when the front shutter 170 has turned to the open position, they are located in the axis of the grooves 117 of the tubular shaft 113 of the socket 110, so that they can be introduced in them and thus release the mobility of introduction of the mobile fin 170.

The front shutter 150 is made herein in one piece by molding a material

insulating plastic

As Figure 2 shows, so that the front shutter 150 returns to the closed position when the plugs of the electric plug are removed from the outlet 1, elastic return means 130 of this front shutter 150 are provided.

In this case, advantageously, these return means 130 also allow the mobile flap 170 to be returned to the

waiting position

As shown in Figures 2 and 5, these return means comprise for this a single main compression and torsion spring 130, which is inserted inside the tubular foot 151 of the front plug 150 and thus interposes between the bottom of the tubular shaft 113 of the socket 110 and the part of the rear face of the flat plate 156 containing the front end of the foot 151 of the front plug 150.

This main spring 130 then acts in compression to maintain the front face of the flat plate 156 of the front shutter 150 in support against the rear face of the main wall 171 of the moving flap 170 and thus return the moving flap 170 to the position of wait when no effort is exerted on it.

The ends 131, 132 of this main spring 130 are, on the other hand, locked respectively in rotation around the coupling shaft A1 with respect to the front plug 150 and with respect to the socket 110.

To this end, they are retracted to extend according to a diameter of the main spring 130. Correspondingly, the bottom of the tubular shaft 113 of the socket 110 and said part of the rear face of the flat plate 156 of the front plug 150 each have two ribs 113A , 151A delimiting each other a receiving slot of the corresponding end 131, 132 of the main spring 130.

This main spring 130 then acts in torsion around the coupling shaft A1, to return the front shutter 150 to the closed position when no effort is exerted on it.

The movements of the different components of the outlet 1 during the insertion of an electrical plug into the Insert cavity 101 of this outlet 1 can be described in reference to Figures 6 to 9.

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Initially, as shown in Figures 6 and 8, the moving flap 170 is held in a waiting position by the main spring 130.

The front shutter 150, which is held in the closed position by the main spring 130, then prevents dust particles from entering the interior of the outlet 1 and prevents simple support on the main wall 171 of the fin mobile 170 causes the introduction of the latter into the insertion cavity 101.

The rear shutter 60 is, in turn, held in the closed position by the spring 50.

Then, when a user inserts an electrical plug into the outlet 1, the plugs of this electrical plug pass through the access openings 172, 173 of the moving flap 170 and rest against the inclined sides 154, 155 of the front shutter 150, which causes the latter to turn. The ribs 157 of the front shutter 150 are then located in the axis of the grooves 117 provided along the tubular shaft 113 of the base of the trim 100.

The electrical plug is then free to penetrate deeper into the outlet 1, until its socket comes to rest against the front face of the moving flap 170 and pushes the latter towards its inserted position (see Figures 7 and 9 ).

When this movement takes place, the plugs of the electrical plug pass through the openings 82, 83 of the cassette 80 and rest against the inclined sides 64, 65 of the rear shutter 60, which causes the latter to slide.

The electrical plug is then free to penetrate deeper into the outlet 1, until its plugs are hooked into the socket 21, 31 of the phase 20 and neutral 30 terminals.

The removal of the electrical plug out of the outlet causes the inverse movement of the different components of this outlet 1, in particular thanks to the springs 50, 130.

Finally, it should be noted that during disassembly of the bezel 100, the rear shutter 60 remains integral with the case 10, in the sense that the cassette 80 retains it in position to ensure the electrical safety of the outlet 1. The front shutter 150 remains, in turn, in solidarity with the bezel 100, which facilitates the disassembly of the latter.

As a variant, it may be provided that the bezel is devoid of a mobile fin. In this variant, the front shutter can then, for example, be held integral to the bezel by a cassette fitted at the rear of the bottom of the receiving cavity.

Claims (14)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 1. Power outlet (1) comprising: - a box (10) that houses at least two connection terminals (20, 30), - a trim (100) mounted on the front of the box (10) and having two access openings (172, 173) to said connection terminals (20, 30), - a rear shutter (60) comprising two wings (62, 63), which is movable between a closed position in which its wings (62, 63) interpose between the access openings (172, 173) and said terminals connection (20, 30) to prevent access to said connection terminals (20, 30) and an opening position in which they are separated from said access openings (172, 173) to allow this access, characterized in that it comprises a front shutter (150), different from the rear shutter (60) and comprising two wings (152, 153), which is movable between a closed position in which its wings (152, 153) are interposed between the access openings (172, 173) and said connection terminals (20, 30) to prevent access to said connection terminals (20, 30) and an opening position in which they are separated from said access openings (172 , 173) to allow this access, and whereby the rear shutter (60) and the front shutter (150) are respectively connected to said box (10) and to said bezel (100), so that when the bezel (100) is disassembled from the box (10), the front shutter (150) remains assembled to the bezel (100) and the rear shutter (60) remains assembled to the case (10). 2. Power outlet (1) according to the preceding claim, wherein one of the front and rear shutters (60, 150) is mobile in rotation between its open position and its closed position, while the other is mobile in translation between its opening position and its closing position. 3. Power outlet (1) according to one of the preceding claims, wherein said bezel (100) understands: - a socket (110) comprising mounting means on the box (10) and having a side wall (112) that delimits an insertion cavity (101) of an electric plug along a coupling shaft (A1), Y - a movable flap (170) mounted movable in translation with respect to the side wall (112) of the socket (110) along said coupling axis (A1), in which said access openings (172, 173) are provided, and which forms the movable bottom of said insertion cavity (101). 4. Power outlet (1) according to the preceding claim, wherein said front shutter (150) is mounted mobile in rotation with respect to the bezel (100) around the insertion axis (A1), to close or open the access to said connection terminals (20, 30). 5. Power outlet (1) according to the preceding claim, wherein return means (130) of said front shutter (150) are provided in the closed position. 6. Power outlet (1) according to one of claims 4 and 5, wherein said movable flap (170) is between an inserted position and a waiting position, the front shutter (150) comprises locking means of the mobile fin (170) in the waiting position, which are unlocked in favor of the mobility of the front shutter (150) from its closed position to its open position. 7. Power outlet (1) according to one of claims 3 to 6, wherein the socket (110) comprises, at the rear of its side wall (112), a bottom wall (111) having openings of passage (118) of the plugs of the electrical plug in said connection terminals (20, 30), and in which said front plug (150) is interposed between the movable flap (170) and the bottom wall (111) of the trim (100). 8. Power outlet (1) according to the preceding claim, wherein return means (130) of said front shutter (150) are provided in support against the moving flap (170). 9. Power outlet (1) according to one of the two preceding claims, wherein the bottom wall (111) of the socket (110) carries a shaft (113) closed at the rear by a bottom, and in which said front shutter (150) comprises a foot (151) mounted mobile in translation and rotation in the shaft (113) along said coupling shaft (A1). 10. Power outlet (1) according to claims 5, 8 and 9, wherein said return means of said shutter front (150) against the moving flap (170) and said return means of said front shutter (150) in the closed position comprise a single spring (130), interposed between the bottom of the shaft (113) of the socket (110) and the foot (151) of the front shutter (150), and whose ends (131, 132) are respectively locked in rotation with respect to the front shutter (150) and with respect to the bezel (100). 5 11. Power outlet (1) according to one of the preceding claims, wherein said rear shutter (60) is movable in translation in the housing (10) along a transverse axis (A2) inclined or orthogonal to said coupling shaft (A1), to close or open access to said connection terminals (20, 30). 12. Power outlet (1) according to the preceding claim, wherein return means (50) of said rear shutter (60) to the closed position. 13. Power outlet (1) according to one of the two preceding claims, wherein said rear shutter (60) is movably mounted in the box (10) around an axis parallel to said transverse axis (A2), between 15 a straight position and two tilted positions, and in which the box (10) comprises stop means (19) adapted to block said translation of the rear shutter (60) when the latter is in a tilted position. 14. Power outlet (1) according to the preceding claim, wherein said rear shutter (60) is movably mounted around two different axes and parallel to the transverse axis (A2). twenty 15. Power outlet (1) according to the preceding claim, wherein said box (10) comprises two parallel ribs (16) whose free edges extend parallel to said transverse axis (A2), and wherein said rear shutter ( 60) rest on its back face on these two parallel ribs (16).