ES2257174B1 - PLUG BASE WITH SECURITY SHUTTER AND MULTIFUNCTIONAL FRAME. - Google Patents

Abstract

Plug base with safety shutter and multifunctional frame. Plug base, with safety shutter located inside the cover (2) of transparent and colored dielectric material of the base body (1) and with multifunctional frame (3) that allows its application to the configurations of use "bipolar", type " French "and type" schuko "by 180º rotation on the vertical imaginary axis, having a system of embedding inside said base body (1), for electrical conductors of equal or different diameter (6) (6a), providing the contact bodies (5) necessary for the correct arrangement of the plugs and corresponding earth connections in the different configurations mentioned, being the safety shutter (9), linearly movable when the two pins of a plug (12) are connected in unison on it ), overcoming the action of the spring (10) which, when removing said pins, will return the shutter to its closed position, the frame (3) also having vertical tabs (32) to be introduced In the corresponding housings (37), being separated from the body (1) according to its position after the aforementioned 180º turn and allowing the corresponding configuration to be installed.

Description

Plug base with safety shutter and multifunctional rack.

The present invention patent makes reference to a plug base with safety shutter and frame multifunctional, for low voltage electrical installations, preferably domestic or commercial, and whose characteristics Essentials are described below.

At present, it is an unavoidable requirement, attending to the practical imposition of offering modular elements for any type of electrical installations and respecting always the safety regulations and operation, that the various electrical mechanisms offer the possibility of being used for different configurations of service with a minimum change of elements, which may be easily replaced, with minimal cost, immediately, without having to proceed to change all of the components, just by incorporating or replacing some of them, or by changing their position.

All of this must obviously have an impact on processing costs, stock storage and maintenance, since it will only be necessary to manufacture a certain number of certain components, the remaining ones being valid for the different configurations that you plan to use, in this case, as the plug base object of the present patent of invention.

State of the art

Shutter devices of safety for plug base that need to be installed in the cover of the set, which occurs in the Spanish Utility Model U 200001679 and whose characteristics are efficient but cannot fit Install it on the base cover of the plug.

Another similar case but for air base of plug is described in Spanish utility model U 200301008 as well as in the U 200301010 presenting its security elements so that they are placed in the lid of the set.

Essential characteristics of the invention

The invention described has as essential feature special structure of the base body of the mechanism, which allows its use in applications diverse by only changing a minimum of components, as well as the special configuration of the cover of the mentioned base body, which allows the installation of a safety shutter device inside said cover, when, in other existing models, these shutter devices are placed on the outer cover of the set.

It is also an essential feature of the invention, the shape of the metal frame where the mechanism is subject, which allows its use, without changing it, for the different configurations that the plug base will offer object of this invention, which will be described below and that they are, the bipolar plug configuration, the so-called "type French ", and the so-called" schuko "base, frame that, by this characteristic, it receives the denomination of "multifunctional".

Finally, it will be highlighted in this description with detail the system of embornado of which the set is endowed, located all of it in the socket, which facilitates carrying out the emborning action, while allowing to perform, in each contact body, the electrical cable clamping diameter different, without the need to change the component any.

Description of the invention

As indicated above, the basis of plug provided with safety shutter and whose frame multifunctional allows adaptation to three different plug configurations, it is essentially characterized by next:

It presents a novel security device, located on the cover of the base body of the device, constituted by a shutter and a spring-spring.

The aforementioned cover is presented with transparent and colored dielectric material for the purpose of safety when handling, green in the case describe. This color will indicate to the user the existence of the shutter device in said cover, not being it is necessary that the plug base cover is mounted so that The device incorporates the necessary and regulated security.

Inside the base body cover is incorporates the shutter and spring-spring; he shutter system is of the type of guide, moving the shutter linearly.

As regards the multifunctional frame, This plug base component is identical for all three configurations indicated above.

to)

For the bipolar configuration, in which the plug base has only the two holes for the introduction of the two pins  cylindrical plug plugs, holes arranged in the device cover as well as on the body cover base;

b)

For the configuration called "French" type, in which the device is provided with the grounding contact and the corresponding vertical cylindrical grounding pin, popup through the device cover; Y

C)

Finally, for the configuration known as "schuko", in which the device has a grounding contact, provided with two upper legs lateral, symmetrical, with the corresponding contact spring and The two buttons.

The frame is the same, as indicated, for these three configurations, placing themselves in their normal position for the bipolar and "French" type, while for the type "Schuko" must be turned by 180º. In all these three realizations the frame will be fixed in its working position by proper placement of the appropriate tabs of fixation.

Finally, the plug base object of the This invention patent presents a particular provision inside, especially the contact bodies for make the emborning by tightening by screw, and whose essential feature is to allow the emborning of two electrical conductors of different diameter in the same body of contact, without changing any element, may also present as a variant, contact bodies without screws, provided with contact sheets, also highlighting that in the "French" type contacts, as in the configuration "schuko", contact bodies are not required to take earth, since it is the same base body that supplies this guiding function

In order to describe with the maximum detail all the components of the plug base object of the present invention, as well as referring to each one of them, attached a series of drawings in which they have represented, in all their configurations, the base mentioned, by way of practical example of embodiment, not limiting

List of descriptive drawings

In these drawings,

Figure 1 is a perspective view, with all its components exploding, from the plug base in its bipolar and screw-in configuration;

Figure 2 is a perspective view and also exploding, from the base in the type configuration "French", and screwed;

Figure 3 is a perspective view and in explosion, from the base in the "schuko" type configuration and screwed out;

Figure 4 represents, also in perspective and explosion, the base in the bipolar configuration, with flanged fast, no screw;

Figure 5 is the perspective view and in explosion of the base in its "French" type configuration, with fast embossing, without screw;

Figure 6 draws, in perspective and in explosion, the base in its configuration "schuko", with embornado fast, no screw;

Figure 7 is a perspective view of the body of the plug base, in its bipolar configuration, with the different components mounted on it;

Figure 8 is a plan view corresponding to the previous figure;

Figure 9 is a detail, sectioned according to CC of the area of placement of the contact body in the body of the base, according to the previous figure;

Figure 10 is a detail, corresponding to the Figure 8, by section BB;

Figure 11 is a perspective view, by way of of explosion, of the elements that make up the contact body for screw connection;

Figure 12 is a plan view of said contact body, for screw connection, according to previous figure;

Figure 13 corresponds to section AA of the figure 12;

Figure 14 is an elevation view of the section BB corresponding to figure 12;

Figure 15 is a detail, on a larger scale, of the screw contact, located in position on the support of the screw contact;

Figure 16 is a detail, corresponding to the previous figure, with the contact support already folded over the own contact;

Figure 17 is an elevation view, according to the CC section of Figure 12, of the contact body;

Figure 18 is a sectional view of the body of contact, by section AA, according to figure 12, showing two cable ties, both of the same diameter;

Figure 19 draws identical body section contact, according to the previous figure, showing two wires bolts of different diameter;

Figure 20 is a perspective view of the base cover;

Figure 21 represents the same cover of the base, plan view and side and front elevations, according to the sections AA, CC and BB;

Figure 22 draws the cover of the figures 20 and 21, seen below and open, in the first sequence of the assembly of the shutter mechanism, which is observed in explosion;

Figure 23 draws, in perspective, the second Sealing mechanism mounting sequence, according to the previous figure;

Figure 24 also shows in perspective the cover with the shutter mounted, and closed;

Figure 25 draws in section the beginning of the sequence of how the shutter acts, taking as reference section CC of figure 21, showing the spike of the plug approaching;

Figure 26 draws the following sequence, according to the previous figure, with the spike affecting the shutter;

Figure 27 draws the end of the sequence, with the shutter already apart and the pin penetrating towards the inside of the base;

Figure 28 shows, in perspective and in explosion part of the base, in its bipolar configuration, in the variant of the sealing mechanism located on the cover of the set;

Figure 29 draws, on a larger scale, the components of the sealing mechanism of Figure 28;

Figures 30 and 31 draw in perspective, the body of the base of the plug, with the frame placed on it, and showing the action of the claw, in the closed position, (figure 30), and in an open position, when the drive screw, (figure 31);

Figure 32 is a perspective view of the base body with the frame positioned on it, in the bipolar and French type configurations;

Figure 33 is a perspective view, corresponding to that of the previous figure, with the frame already placed on the base body;

Figure 34 is a detail of Figure 33, a larger scale, showing the placement of the frame tabs in the indicated place of the base body;

Figure 35 represents the configuration "schuko" and the 180º turn that is necessary to give to the frame for correct placement on the base body;

Figure 36 is a view corresponding to the of the previous figure, with the frame already placed on the body base; Y

Figure 37 is a detail, on a larger scale, of the placement of the frame tabs in the indicated place of the base body, according to the previous figure.

According to the drawings, the plug base with safety shutter and multifunctional frame, for low voltage electrical installations, object of the present invention is characterized in that it is constituted by a body base (1), provided with a cover (2) and on which the multifunctional frame (3), finally placing the cover (4) of the set.

Inside the base body (1) are accommodation for placement, perfectly fixed, of the contact bodies (5), in which they will be wrapped, in each of them, two electrical conductors (6), while in the part central is the pin (5a), which has the function of allow threading on the cover fixing screw of the bipolar plug, as well as the fixing of the contact socket ground and cover in executions "schuko" and type "French".

Outside the mentioned base body (1) the fixing claws (7) are located for fixing the set against the walls of the cavity where it will be placed in the recessed shape. These claws, in figures 1 to 6 and 28, are they represent exploded, as an explosion, while in the Figures 30 and 31, are drawn in the non-acting position and of performance, respectively.

The cover (2) of the base body (1) has a flip cover (8), as shown in Figures 20 to 24. Inside the cover are located the shutter (9) together with its spring-spring (10). Figures 22 a 24 show a sequence of the mentioned installation shutter and its spring-spring, seen the cover (2) below, with its lid open (8) and the shutter (9) and the spring-spring (10) separated, exploding, in the figure 22.

In figure 23 the shutter (9) and the spring-spring (10) already in place, with the cover (8) starting the folding for closing, closing completed in full as shown in figure 24.

In said figures, as well as in figures 20 and 21, the circular holes (11) are observed for the passage of the cylindrical pins (12) of the plug, as well as the holes central side (13), for the passage of the vertical cylindrical spike (14) for grounding in the "French" type configuration, and the side hole (15), for the passage of the corresponding side legs (16) of the earth connection in the configuration "schuko."

These circular holes (11), for the passage of the pins (12), correspond to those that the lid has folding (8), indicated by reference (17), and they are all located so that the shutter (9), placed in place Initial, close the access through them, being located just in that place the inclined ramps (18) that the mentioned one possesses shutter (9).

Thus arranged the cover assembly (2), in the moment when the pins (12) of the plug press the unison on the mentioned inclined ramps (18), will be caused, as a result of the originating force, the displacement in linear sense of the shutter (9), overcoming the resistant action of the spring-spring (10). This displacement makes that the access holes (11) remain free, allowing the advance into the base body (1) of the pins (12) of the plug

When removing said pins (12), when separated the base plug, the spring-spring (10) causes the shutter to move (9), returning it to its initial position where it obstructs the passage inwards, acting Again as a security element.

The structure of the base body (1) allows, as practical variant of implementation, provide the device with a shutter mechanism, of an already known type, which is located in the inside of the cover (2) of the body (1), unlike the hitherto known embodiments in which this shutter mechanism It was located inside the cover (4) of the assembly.

In this way, when presenting the mechanism shutter as a basic element of the configuration provided with the same, it will not be necessary to vary said base body (1), nor its cover (4), neither the frame (3), nor the contacts (5). It will be enough only by replacing the cover (2) of the body (1) with the cover (2a), prepared to locate inside the various components of the shutter mechanism (Figures 28 and 29), components that are: the support (38) of the rotating shutter (39), together with the spring (40) and the shutter cover (41), accessible to the pins (12) of the plug

Inside the base body (1) is located the device of embornado, characteristic of the base object of the present invention

This device consists of bodies of contact (5) which are fixed in their corresponding base body housing (1) thanks to the elasticity of its back, finished in tongues folded towards the interior (19), defining at the same time the accommodation (20) by where the pins (12) of the plug will be inserted, as well as the driver positioning zone (21) for embedding in the contacts (Figs. 7 and 8).

In the configuration of the plug base with screw contact, are located inside the contact body (5), screw contact support (22), together with the screw contact (23).

This support (22), as seen in the Figures 15 and 16, fold their fins in the form of fins (22a), in the moment of assembly, on the contact itself (23), hugging it and forming a block that allows the tilting of said contact (23) in order that they can be emborn, when activated suitably on the screw (24), the electrical conductors, in number of two, being able to be of equal or even diameters different (6) and (6a) (Figs. 18 and 19), without the need to perform change of any component, thanks to the aforementioned tilting of the aforementioned contact (23).

Each contact body (5) has, in its part upper and on both sides, highlights significantly cylindrical (25), made by drawing, which begin with funnels (26) in the form of a funnel, whose purpose is to facilitate the introduction, placement and electrical conductors (6), as they serve perfectly guide. This is clearly seen in the figure eleven.

The projections (25) have an interruption (25 '), as also shown in Figure 11, whose function is ensure the driver's good contact with the contact body and prevent the driver from sliding backwards because of a own traction

This upper part of the contact body (5) ends in an inward bend (27) (Fig. 17) whose function is to serve as a stop during the introduction and placement of the corresponding electrical conductor (6) to be packed.

Since the cover (2) of the base body (1) is will elaborate, as previously indicated, in material transparent dielectric, the operator can observe and follow the course of the operation of embornado, with the consequent advantage in the practice that this implies.

A variant embodiment, in any of its configurations, of the plug base, is the placement in the contact bodies (5) of a rapid embossing device, consisting of contact springs (28) (visible in the Figs. 4, 5 and 6), which will be operated by buttons external (29), located above the contact body (5), of so that by pressing said buttons, by simple pressing manual, lowering of the upper part of the corresponding contact spring (28), allowing to place in that free space that is created, the end of the electric conductor (6) that you want to embroider, no matter whether it is of a different diameter (6) or (6a), which will be perfectly subject when the pressure ceases on said contact spring (28), which will return to its position initial, imprisoning the electric conductor (6).

It is essential feature of the plug base object of the present invention the fact that, by means of a minimum variation of its components, may offer some configurations other than bipolar, and that will be described at continuation. These different configurations will be the type "French" and the "Schuko" type.

According to figures 1 and 4, the Bipolar configuration consists of using the base to receive bipolar plug plugs, that is, with two pins cylindrical (12).

In this configuration, above the body base (1), with its cover (2), the frame (3) and the assembly cover (4), which will be equipped with holes (11) for the correct and easy passage of the two pins (12) of the plug.

In the "French" type configuration, such as depicted in figures 2 and 5, inside the body base (1) is located the contact (30) of the earth, in its case, with its screw (24 ') and the corresponding contact of screw (23) and contact support (22). On the back end of said grounding contact (30) the pin is fixed vertical cylindrical (14) grounding for said base type "French".

In that same configuration, on the base body (1), with its cover (2), the frame (3) and the cover are located (4a), provided with the necessary holes for its function.

Finally, in the "schuko" type configuration, according to figures 3 and 6, the grounding contact (31) is located inside the base body (1), of special and concrete characteristics for said configuration, provided with two lateral (16), symmetrical and vertical legs, which will appear through the corresponding openings that the lid (4b) has in this configuration, lid that closes the assembly, above the frame (3) and the body (1) with its
cover (2).

It is precisely in this type configuration "schuko" in which the frame (3) will be positioned so different from that of the two previous configurations, for correct use, without the need to change the component  any.

The multifunctional frame (3), characteristic of the plug base object of the present invention, characterized in that it has vertical tabs (32) (visible more clearly in Figs. 32 to 36), provided at its edges of some highlights: a protrusion similar to a tab square (33), (see Fig. 32) located in the central part of the lateral recess (34), and a socket (35), as a terminal of the lateral recess (36) (see Fig. 35), located on the other edge of the tab (32).

Thus arranged the frame elements (3), at the time it must be installed for the use of the plug base in bipolar and French configurations, it position on the base body (1) as drawn in the Figures 32 and 33, so that the tab (33) stops at the inside the accommodation area (37) that has the base body (1) at their angles, leaving the frame (3) at a distance and default base body (1). Figure 34 is a detail to greater scale of the placement of said tab (32).

In the event that the use is for the "schuko" type configuration, the frame (3) will be turned on direction of circular rotation, around the imaginary axis vertical (EE) of the set, turn that will be, specifically, 180º in its totality, and illustrated by the arrow drawn in the figure 35

By this turn, the vertical tab (32) It will be located in the accommodation area (37) resting on the fitting (35), thus being said frame (3) more separated from the base body (1), as drawn in figures 35 to 37, at a default distance and necessary for such configuration concrete, of "schuko".

Described sufficiently the object of the present invention, it should be noted that the variations that may be in dimensions, shapes, external appearance and types of materials used in the practical realization of the plug base that described, will not affect the essentiality of the invention, summed up in the claims that follow.

Claims (15)

1. Plug base with safety shutter and multifunctional frame, applicable to low voltage electrical installations, of the type consisting of a base body (1) with its cover (2), frame (3) and cover (4), and appropriate contact bodies (5), essentially characterized by being provided with a safety shutter mechanism, arranged in the cover (2) of the base body (1), thereby ensuring protection, although the mounting of the base (3) is not finished, and specifically the cover (4) of the assembly is not yet installed. 2. Plug base with safety shutter and multifunctional frame, according to the preceding claim and whose metal frame (3), on which the device assembly is fixed is used interchangeably in the configurations of the base for use as "bipolar", of the "French" type and of the "schuko" type, characterized in that said metal frame (3) has vertical tabs (32), provided at its edges with a shoulder (33) similar to a substantially square flange, located in the central part of the lateral recess (34), and a socket (35), as a terminal of the lateral recess (36) located on the other edge of the flange (32), which rest on the fittings (35) of the base body ( 1), the frame (3) being located at the predetermined distance and necessary for the "French type" and "bipolar" configurations, while, by a 180 ° rotation, in rotation with respect to the vertical imaginary axis of the assembly, said frame (3) will support these vertical tabs (32) on the corresponding fittings of the base body (1) thus being located at the predetermined distance and necessary for the "schuko type" configuration. 3. Plug base with safety shutter and multifunctional frame, according to claim 1, characterized by having a flanging system located inside the base body (1), which allows the immediate placement and without variation of any element, of conductors electrical of the same or different diameter (6) and (6a), which will be wrapped, as needed, individually or in pairs in each contact body (5). 4. Plug base with safety shutter and multifunctional frame, according to claims 1 and 2, characterized in that the bipolar type configuration is constituted by the base body (1), inside which the contact bodies (5) are located, with corresponding contacts (23), clamping and contact screws (24) and a screw contact support (22), and by the body cover (2), inside which the safety shutter mechanism, the frame is arranged (3) and the cover (4) of the assembly, complete with fixing claws (7) from the base body (1) to the anchoring place. 5. Plug base with safety shutter and multifunctional frame, according to claims 1, 2 and 4, characterized in that in the "French" type configuration, it is constituted by the same components as the "bipolar" configuration of the previous claim, adding the appropriate ground contact (30), whose fixation is by riveting on the base body (1), by means of the rivet (5a), the screw (24 ') and its contact (23), as well as the contact support screw (22), in addition to the cylindrical grounding pin (14), adapting the upper face of its cover (4a) to this configuration, by means of the necessary openings (17) for the passage of the pins (12) of the plug and the outlet of the cylindrical pin (14). 6. Plug base with safety shutter and multifunctional frame, according to claims 1, 2 and 4, characterized in that in the "schuko" type configuration, it is constituted by the same components of the "bipolar" configuration of claim 4, suppressing the pin (14) and incorporating the grounding contact "schuko" (31), whose fixation is by riveting on the base body (1) by means of the rivet (5a), the screw (24 ') and its contact (23 ), as well as the screw contact support (22), in addition to two symmetrical ground side legs (16), adapting the upper face of its cover (4b) to this configuration through the openings necessary for the passage of the pins (12) of the plug and the outlet of the two lateral earthing legs (16). 7. Plug base with safety shutter and multifunctional frame, according to claims 1 and 4, characterized in that each contact body (5) is fixed in the corresponding housing of the base body (1) thanks to the elasticity of the back, in the form of tabs (19), folded inwards, configuring the necessary housing (20) where the appropriate pins will be introduced and made, the respective pins of the plug (12), as well as configure the place (21) for the positioning of the contacts of embornado. 8. Plug base with safety shutter and multifunctional frame, according to claims 4 to 7, characterized in that the structure of the contact bodies (5) for screw-in (24) allows the support (22) to be located inside of screw contact, as well as the screw contact (23), said support (22) bending through its fins (22a), on the contact (23), thus forming a block that allows said contact (23) to swing on its housing inside said contact body (5), in order to accept bolts of different diameters of electrical conductors (6) and (6a). 9. Plug base with safety shutter and multifunctional frame, according to claims 7 and 8, characterized in that the upper part of each contact body (5) has, on both sides, substantially cylindrical projections (25), formed by drawing , as well as funnels (26) in the form of a funnel, in order to facilitate the placement and embedding of the corresponding electric conductor (6) as a guide, finishing said upper part in an inward bending (27) that serves as a stop when placing said electrical conductor (6), visible operation since the cover (2) of the base body (1) will be made, preferably with transparent and colored dielectric material. 10. Plug base with safety shutter and multifunctional frame, according to claim 2, characterized in that the contact bodies (5) may present, as a variant of embodiment and in any of the configurations, a fast, consistent screwless system in the arrangement of contact springs (28) preferably semi-divided, inside said body (5), together with buttons (29), for external actuation on said contact springs (28), allowing, by simple pressure, the rapid flanging of a pair of electrical conductors (6) in each body (5), even of different diameters (6) and (6a). 11. Plug base with safety shutter and multifunctional frame according to claim 1, characterized in that the safety shutter mechanism is constituted by the shutter element (9), movable in a linear direction inside the cover (2) of the base body (1) where it is located, and a spring-spring (10) that keeps said shutter (9) in the safety closing position, preventing access of any object into the holes (11) that has the cover (2) and where the pins (12) of the plug must be inserted. 12. Plug base with safety shutter and multifunctional frame, according to claims 1 and 11, characterized in that the shutter (9) has two inclined ramp areas (18), located on its upper face and coinciding with the holes (11 ) of access of the pins (12) of the plug from the cover (4) of the assembly, so that when pressing both pins (12) in unison on the mentioned inclined ramps (18), it is caused, as a result of the force originated, the linear displacement of the shutter (9), overcoming the resistant action of the spring-spring (10) and allowing, immediately afterwards, the advance towards the inside of said pins (12) to the corresponding contacts, when leaving the holes of access, returning the shutter (9) to its initial safety position when the pins (12) of the plug are removed. 13. Plug base with safety shutter and multifunctional frame, according to claims 1, 11 and 12, characterized in that the cover (2) of the base body (1) has a hinged cover (8), provided with holes (17), which, when opened, exposes the inside of said cover (2), allowing the correct placement of the plug (9) and the spring-spring (10) in its housing, proceeding to the folding and closing of said cover (8) in order to keep the shutter (9) and spring-spring (10) correctly positioned in the safety position, that is to say, the access to the interior of the base body (1) is prevented by the mentioned holes (11) and the corresponding ones (17) of said flip cover (8), which said dejection makes them coincide. 14. Plug base with safety shutter and multifunctional frame, according to claims 1 and 11, characterized in that the shutter mechanism can be located, as a variant, next to the assembly cover (4), thanks to the structure of the base body (1 ) which, by changing its cover (2a) can accommodate the support piece (38) of a rotating shutter (39) and its spring (40), together with the shutter cover (41). 15. Plug base with safety shutter and multifunctional frame, according to claims 1 and 2, characterized in that said multifunctional frame (3), usable for the three configurations described, has two vertical flanges (32) on its two sides. they will introduce into the corresponding housings (37) of the base body (1), butt with substantially square tabs (33) of the lateral recess (34), thus being said frame (3), fixed on the base body (1) and at a certain distance, the necessary one for the correct disposition of the diverse components of the set in its bipolar and "French" configurations, it is enough to position said frame (3), giving it a 180º rotation, so that the vertical flange (32) is introduced in the housing (37), resting on a socket (35) of said lateral recess (36) on the other side of the flange (32), so that the multifunctional frame (3) will be at a greater distance of the base body (1), according to the space necessary for the arrangement of the various components in the "schuko" configuration.