EP3797455A1 - Manually tightened adapter for plugs for civil and industrial use - Google Patents

Manually tightened adapter for plugs for civil and industrial use

Info

Publication number
EP3797455A1
EP3797455A1 EP19730225.0A EP19730225A EP3797455A1 EP 3797455 A1 EP3797455 A1 EP 3797455A1 EP 19730225 A EP19730225 A EP 19730225A EP 3797455 A1 EP3797455 A1 EP 3797455A1
Authority
EP
European Patent Office
Prior art keywords
adapter
half shells
suited
electrical sockets
industrial electrical
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.)
Granted
Application number
EP19730225.0A
Other languages
German (de)
French (fr)
Other versions
EP3797455B1 (en
Inventor
Fabio Luise
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.)
Fanton SpA
Original Assignee
Fanton SpA
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 Fanton SpA filed Critical Fanton SpA
Publication of EP3797455A1 publication Critical patent/EP3797455A1/en
Application granted granted Critical
Publication of EP3797455B1 publication Critical patent/EP3797455B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/59—Threaded ferrule or bolt operating in a direction parallel to the cable or wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable

Definitions

  • the present patent concerns electrical devices and more specifically it concerns an adapter for electric plugs for civil use and industrial sockets.
  • the known adapters are made up of a main body, provided with a front portion comprising the pins that are typical of standardized industrial plugs and with a socket for the insertion of a plug of the type for civil applications in the rear portion.
  • the adapters are covered by shells intended to protect the contacts according to the currently applied standards for industrial plugs and sockets.
  • the patent EP 2852010 Al concerns an adapter device for electrical plugs for industrial applications, comprising a plug body provided with connectors for an electrical plug, a protective shell coupled with the plug body, wherein the shape and size of said protective shell are such as to completely cover both the connectors and said electrical plug when the latter is fitted in the connectors.
  • the shell is constituted by two half-shells suited to be constrained to each other in order to define the protective shell, which is provided with an opening for the passage of the power cable with the electrical plug at the level of the rear end opposite the one intended to be coupled with the plug body.
  • Said half shells are furthermore provided with through holes for the insertion of tightening screws.
  • Said holes for the insertion of tightening screws are distributed on said half shells both on the end intended to be coupled with the plug body and on the opposite end provided with an opening for the passage of the power cable.
  • the patent EP 1538712 A2 concerns an electrical connector comprising a casing with an internal plug and a protective shell made up of two half shells suited to be joined to each other in order to enclose said casing.
  • a nut is used in order to fix the half shells to each other, said nut consisting of an internally threaded circular body suited to be screwed on the threaded ends of said half shells. Therefore, in order to obtain the connection, it is necessary to previously fit the nut on the cable, and the nut cannot be removed any more without disassembling the plug.
  • the patent DE 9309840 U 1 concerns a cable clamp offering the advantage that, after being installed for the first time, it can be replaced in case of damage.
  • the cable clamp is constituted by a collar made up of two semi-circular halves inside which there is an elastic bushing, also made up of two halves, wherein the two opposite ends of said collar are externally threaded, and wherein a nut is screwed on one of said ends, said nut being in turn made up of two substantially semi-circular halves, internally threaded and externally shaped with a polygonal outline suited to be coupled with matching screwing tools.
  • This type of cable clamps always requires the use of an interposed elastic element forming a sealing ring.
  • a new adapter which among its main parts includes a centre body and at least two or more half shells that are suited to be connected to one another in order to obtain a tight chamber, and wherein said shells, once the plug for civil applications has been inserted in them, are locked at the rear by screwing a threaded ring nut in the shape of a cap or a dome thereon, and wherein said threaded ring nut guarantees that the plug cable is locked and that said half shells are tight.
  • said half shells which once joined form said closed chamber enclosing the plug, have a first end suited to be constrained to the centre body and a second opposite end, from which the cable exits and which is externally threaded in order to ensure that said threaded ring nut, in turn consisting of at least two complementary parts suited to be connected to form the ring nut itself, can be screwed thereon.
  • Said first end of the half shells is configured in such a way that it can be hinged to said centre body or at least partially inserted in said centre body or is both hinged to and at least partially inserted in said centre body.
  • connection of said half shells to the centre body is of the reversible type, does not require the use of screws or adhesive materials and furthermore, thanks to the special configuration of said first end of the half shells, guarantees tightness.
  • Said second end is especially configured with an external thread for screwing said ring nut that can be directly mounted around the cable, thus with no need to remove the plug. Furthermore, said second end is configured with inner hooks that act directly on the cable and that, due to the tightening of the ring nut, clamp the cable and prevent it from coming off.
  • Figure 1 shows an exploded view of the new adapter when open, with its parts separated, so that it is easier to understand how it is configured and how it works.
  • Figure 2 shows an exploded view of the new adapter when open and with its parts hooked to each other.
  • Figure 3 shows an exploded view of the threaded fixing cap or dome-shaped element.
  • Figure 4 shows a side view of the new adapter when closed.
  • Figure 5 shows a side view of the sealing rubber element placed inside the terminal thread.
  • the new adapter comprises a main body A, in turn comprising a circular wall Al designed to protect the pins suited to be inserted in plugs of the industrial type, a stop ring A2, a cylindrical centre body A3 containing the plug A5, which can be of the Schuko type or of the Italian type with aligned holes or of the universal type or of any other standard type for civil applications.
  • Said centre body A3 comprises two projections A4, preferably arranged in a diametrically opposite position, each equipped with a pin for the insertion of hooks BC1, BC2 that are integral with the corresponding half shells Bl, B2.
  • Said half shells Bl, B2, which are preferably conical in shape, are suited to create the chamber that contains the plug S of the electric tool or household appliance.
  • the edges Bl l, B12, B21, B22 of said shells Bl, B2 are complementary to each other, meaning that they are of the male/female coupling type, with a centre wall positioned between two corresponding side walls.
  • Each of said half shells Bl, B2 comprises, on the side opposite the edge intended to be joined to the centre body A3, an externally threaded semi-circular wall BF1, BF2, in such a way that it can be coupled with the other half shell and form a threaded cylinder.
  • inner coupling devices BEG1, BEG2 are provided to lock the power cable of the plug S.
  • said coupling devices BEG1, BEG2 with hook shaped terminal part are arranged on the head of the parts BF1, BF2.
  • the device comprises also a tightening element C, made up of two semi-circular parts Cl, C2, each provided with a toothed projection Cl 3, C23 suited to be inserted in apposite seats Cl 4, C24 in the corresponding adjacent part C2, Cl, thus creating an internally threaded ring nut in the shape of a cap or a dome suited to be screwed on the thread BF1, BF2 created by said semi-cylindrical elements and wherein, during the screwing step, as the inner conical wall Cl 5, C25 advances, pressure is exerted towards the inside of said hook-shaped elements BEG1, BEG2, which rest against the power cable.
  • a tightening element C made up of two semi-circular parts Cl, C2, each provided with a toothed projection Cl 3, C23 suited to be inserted in apposite seats Cl 4, C24 in the corresponding adjacent part C2, Cl, thus creating an internally threaded ring nut in the shape of a cap or a dome suited to be screwed on the thread
  • the protective compartment for the plug is closed by coupling two half shells Bl, B2 that form the terminal threaded cylinder BF1, BF2 on which the cap or dome-shaped element C is screwed, which in turn is made up of two semi-circular parts Cl, C2, hinged or suited to be hinged to each other at one end or in any case connected or suited to be connected to each other in a preferably reversible manner and which, once coupled together, constitute a single tightening element, like a ring nut, which will be screwed on the threaded ends BF1, BF2 of the two half shells, thus closing the adapter around the plug S and locking it.
  • Said cap or dome-shaped element C comprises two preferably identical semi-circular parts, each provided with an inner thread CF and an outer knurl CZ.
  • Said cap or dome shaped tightening element can be opened and divided in two, being formed by two semi circular parts Cl, C2 suited to be coupled to each other; in this way it is possible to release the cap or dome-shaped element from the cable of the plug S.
  • a rubber element G serving as a seal between the half shells and the cable, wherein said rubber element G is positioned on the inside BFI2 of the end of the two half shells Bl, B2 at the level of the terminal thread BF1, BF2.
  • said two or more parts Cl, C2 of the cap or dome-shaped tightening element C are made integral to each other through the use of an external binding element, such as a toothed clamp, an elastic clamp or other equivalent means.
  • an external binding element such as a toothed clamp, an elastic clamp or other equivalent means.
  • Figure 6 shows that said tightening element C can comprise a flexible connection element, or arch, AR between said parts Cl, C2 that are internally threaded CF1, CF2.
  • the new adapter for electrical sockets can be conveniently used by professional operators who often need to connect their equipment to industrial plugs or domestic sockets, according to the place where they are working, which can vary even in the same day.
  • Another important characteristic lies in that all the elements can be easily produced at limited costs, since they are moulded plastic elements without internal partitions affecting the plug.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Dowels (AREA)

Abstract

The invention is a new adapter for industrial electrical sockets, comprising a main body (A) provided with pins suited to be inserted in an industrial socket, a centre body (A3) comprising a socket (A5) provided with holes according to the civil construction standards, at least two half shells (B1, B2) suited to contain a plug (S) of the type used in civil buildings and comprising coupling devices (BC1, BC2) for coupling them to said centre body (A3) and an opposite terminal threaded portion (BF1, BF2) suited to interact with a tightening element, which in turn comprises at least two parts (C1, C2) that are internally threaded (CF1, CF2) and connected or suited to be connected to each other in such a way as to form a tightening element (C) in the shape of a dome or cap.

Description

MANUALLY TIGHTENED ADAPTER FOR PLUGS FOR CIVIL AND INDUSTRIAL
USE
DESCRIPTION
The present patent concerns electrical devices and more specifically it concerns an adapter for electric plugs for civil use and industrial sockets.
Electrical plugs for use in civil buildings are known, both of the Schuko type and of the Italian type with three aligned pins, which are commonly used to connect to the power mains household appliances such as vacuum cleaners, air conditioners, refrigerators, and so on, as well as tools such as drills, electric saws or any other electric tool needed for different applications in civil buildings where corresponding sockets are provided.
Industrial plugs and sockets are also known, which are safer, so that they can be used both indoors and outdoors, as they can be exposed to weather agents.
These industrial plugs and sockets usually comply with the European standard EN 60309- 1
If said electric tools or appliances need to be used both in domestic and in industrial environments, it is necessary to modify the plug, so that it is suitable for use both with sockets for civil buildings and with industrial single-phase sockets.
It is also known that it is not possible to modify the plug of an electrical device or of an electrical piece of equipment in general, for example a household appliance or a tool such as a drill, since the removal of the plug voids the manufacturer’s guarantee.
For this reason, professional operators, who use their equipment both in civil and in industrial environments, are forced to use two different devices or to resort to special adapters which are not always used correctly.
The known adapters are made up of a main body, provided with a front portion comprising the pins that are typical of standardized industrial plugs and with a socket for the insertion of a plug of the type for civil applications in the rear portion.
Furthermore, said adapters are covered by shells intended to protect the contacts according to the currently applied standards for industrial plugs and sockets. The patent EP 2852010 Al concerns an adapter device for electrical plugs for industrial applications, comprising a plug body provided with connectors for an electrical plug, a protective shell coupled with the plug body, wherein the shape and size of said protective shell are such as to completely cover both the connectors and said electrical plug when the latter is fitted in the connectors.
More specifically, the shell is constituted by two half-shells suited to be constrained to each other in order to define the protective shell, which is provided with an opening for the passage of the power cable with the electrical plug at the level of the rear end opposite the one intended to be coupled with the plug body. Said half shells are furthermore provided with through holes for the insertion of tightening screws. Said holes for the insertion of tightening screws are distributed on said half shells both on the end intended to be coupled with the plug body and on the opposite end provided with an opening for the passage of the power cable.
The assembly of said half shell thus requires the use of specific tools and tightening screws, which must be used in order to ensure the tightness of the shell.
The patent EP 1538712 A2 concerns an electrical connector comprising a casing with an internal plug and a protective shell made up of two half shells suited to be joined to each other in order to enclose said casing.
The document explains that a nut is used in order to fix the half shells to each other, said nut consisting of an internally threaded circular body suited to be screwed on the threaded ends of said half shells. Therefore, in order to obtain the connection, it is necessary to previously fit the nut on the cable, and the nut cannot be removed any more without disassembling the plug.
The opposite ends of said half shells, instead, are constrained to the body of the casing, for example by means of an adhesive material or by simply juxtaposing them. The use of an adhesive material does not allow the half shells to be joined and separated when necessary, while their simple juxtaposition does not ensure tightness.
The patent DE 9309840 U 1 concerns a cable clamp offering the advantage that, after being installed for the first time, it can be replaced in case of damage. The cable clamp is constituted by a collar made up of two semi-circular halves inside which there is an elastic bushing, also made up of two halves, wherein the two opposite ends of said collar are externally threaded, and wherein a nut is screwed on one of said ends, said nut being in turn made up of two substantially semi-circular halves, internally threaded and externally shaped with a polygonal outline suited to be coupled with matching screwing tools.
This type of cable clamps always requires the use of an interposed elastic element forming a sealing ring.
It is the object of the present invention to provide an adapter that complies with the European standard and can offer the required degree of safety.
It is another object of the present invention to provide an adapter that can be easily applied and removed without using tools, such as pliers or screwdrivers, etc., in order to favour the double use of the plug for civil applications.
It is another object of the present invention to guarantee the perfect adhesion of the plug to the inner socket, in order to ensure that the adapter can be extracted from the industrial socket without disconnecting the plug from the socket.
It is another object of the present invention to provide an adapter in which both the annular part and the edges of each half shell are tight as required by the regulations in force.
For this reason, a new adapter has been designed, which among its main parts includes a centre body and at least two or more half shells that are suited to be connected to one another in order to obtain a tight chamber, and wherein said shells, once the plug for civil applications has been inserted in them, are locked at the rear by screwing a threaded ring nut in the shape of a cap or a dome thereon, and wherein said threaded ring nut guarantees that the plug cable is locked and that said half shells are tight.
In further detail, said half shells, which once joined form said closed chamber enclosing the plug, have a first end suited to be constrained to the centre body and a second opposite end, from which the cable exits and which is externally threaded in order to ensure that said threaded ring nut, in turn consisting of at least two complementary parts suited to be connected to form the ring nut itself, can be screwed thereon.
Said first end of the half shells is configured in such a way that it can be hinged to said centre body or at least partially inserted in said centre body or is both hinged to and at least partially inserted in said centre body.
An important aspect of the new adapter lies in that the connection of said half shells to the centre body is of the reversible type, does not require the use of screws or adhesive materials and furthermore, thanks to the special configuration of said first end of the half shells, guarantees tightness.
Said second end, instead, is especially configured with an external thread for screwing said ring nut that can be directly mounted around the cable, thus with no need to remove the plug. Furthermore, said second end is configured with inner hooks that act directly on the cable and that, due to the tightening of the ring nut, clamp the cable and prevent it from coming off.
The characteristics of the new adapter are highlighted in greater detail in the following description, with reference to the attached drawings that are enclosed hereto by way of non-limiting example.
Figure 1 shows an exploded view of the new adapter when open, with its parts separated, so that it is easier to understand how it is configured and how it works.
Figure 2 shows an exploded view of the new adapter when open and with its parts hooked to each other.
Figure 3 shows an exploded view of the threaded fixing cap or dome-shaped element. Figure 4 shows a side view of the new adapter when closed.
Figure 5 shows a side view of the sealing rubber element placed inside the terminal thread. The new adapter comprises a main body A, in turn comprising a circular wall Al designed to protect the pins suited to be inserted in plugs of the industrial type, a stop ring A2, a cylindrical centre body A3 containing the plug A5, which can be of the Schuko type or of the Italian type with aligned holes or of the universal type or of any other standard type for civil applications.
Said centre body A3 comprises two projections A4, preferably arranged in a diametrically opposite position, each equipped with a pin for the insertion of hooks BC1, BC2 that are integral with the corresponding half shells Bl, B2. Said half shells Bl, B2, which are preferably conical in shape, are suited to create the chamber that contains the plug S of the electric tool or household appliance. The edges Bl l, B12, B21, B22 of said shells Bl, B2 are complementary to each other, meaning that they are of the male/female coupling type, with a centre wall positioned between two corresponding side walls.
Even the semi-circular edges B13, B23 of the two half shells Bl, B2 are inserted in the sides present on the edge A6 of the centre body A3.
Each of said half shells Bl, B2 comprises, on the side opposite the edge intended to be joined to the centre body A3, an externally threaded semi-circular wall BF1, BF2, in such a way that it can be coupled with the other half shell and form a threaded cylinder. In proximity to said threaded cylinder, formed by said two threaded half cylinders BF1, BF2 coupled together, inner coupling devices BEG1, BEG2 are provided to lock the power cable of the plug S.
In this case, according to the invention, said coupling devices BEG1, BEG2 with hook shaped terminal part are arranged on the head of the parts BF1, BF2.
The device comprises also a tightening element C, made up of two semi-circular parts Cl, C2, each provided with a toothed projection Cl 3, C23 suited to be inserted in apposite seats Cl 4, C24 in the corresponding adjacent part C2, Cl, thus creating an internally threaded ring nut in the shape of a cap or a dome suited to be screwed on the thread BF1, BF2 created by said semi-cylindrical elements and wherein, during the screwing step, as the inner conical wall Cl 5, C25 advances, pressure is exerted towards the inside of said hook-shaped elements BEG1, BEG2, which rest against the power cable.
According to the description provided above, it is possible to apply the electrical plug S, of the type for civil applications, directly in the holes A5 of the body A3; successively, after inserting the hooks BC1, BC2 of the half shells Bl, B2 in the couplings A4 provided on one side and on the opposite side of the body A3, each of said half shells Bl, B2 is rotated until coupling the edges Bl l, B12, B21, B22 together and closing the two half shells Bl, B2 completely.
According to the invention, the protective compartment for the plug is closed by coupling two half shells Bl, B2 that form the terminal threaded cylinder BF1, BF2 on which the cap or dome-shaped element C is screwed, which in turn is made up of two semi-circular parts Cl, C2, hinged or suited to be hinged to each other at one end or in any case connected or suited to be connected to each other in a preferably reversible manner and which, once coupled together, constitute a single tightening element, like a ring nut, which will be screwed on the threaded ends BF1, BF2 of the two half shells, thus closing the adapter around the plug S and locking it.
Said cap or dome-shaped element C comprises two preferably identical semi-circular parts, each provided with an inner thread CF and an outer knurl CZ. Said cap or dome shaped tightening element can be opened and divided in two, being formed by two semi circular parts Cl, C2 suited to be coupled to each other; in this way it is possible to release the cap or dome-shaped element from the cable of the plug S.
According to the invention, furthermore, there is a rubber element G serving as a seal between the half shells and the cable, wherein said rubber element G is positioned on the inside BFI2 of the end of the two half shells Bl, B2 at the level of the terminal thread BF1, BF2.
According to the invention, said two or more parts Cl, C2 of the cap or dome-shaped tightening element C are made integral to each other through the use of an external binding element, such as a toothed clamp, an elastic clamp or other equivalent means. Figure 6, for example, shows that said tightening element C can comprise a flexible connection element, or arch, AR between said parts Cl, C2 that are internally threaded CF1, CF2.
To withdraw the plug, it is sufficient to unscrew the ring nut or the cap or dome-shaped tightening element, causing the two half shells to be opened and thus releasing the power cable, which makes it possible to disconnect the plug and the cable from the body of the adapter.
The advantages offered by this solution can be easily understood: first of all, it is possible to connect and remove the plug to/from the adapter with no need to use tools such as screwdrivers or pliers; secondly, it is sufficient to turn the dome-shaped element manually as if it were a normal cap until it comes off and to disassemble it and then open the two half shells.
The new adapter for electrical sockets can be conveniently used by professional operators who often need to connect their equipment to industrial plugs or domestic sockets, according to the place where they are working, which can vary even in the same day. Another important characteristic lies in that all the elements can be easily produced at limited costs, since they are moulded plastic elements without internal partitions affecting the plug.
These are the schematic outlines that are sufficient for the expert in the art to carry out the invention; therefore, on practical application, variant embodiments may be produced that do not affect the substance of the innovative concept introduced herein.
Therefore, with reference to the above description and the attached drawings, the following claims are expressed.

Claims

1. Adapter for industrial electrical sockets, comprising a main body (A) provided with pins designed to be inserted in an industrial socket, a substantially cylindrical body (Al) intended to protect said pins and a centre body (A3) comprising a socket (A5) provided with holes according to the civil construction standards, and wherein said pins are electrically connected to said socket, characterized in that it comprises:
• at least two half shells (B 1, B2) suited to contain a plug (S) of the type suited to be used in civil buildings, and wherein each of said half shells (Bl, B2) comprises a first end configured to be reversibly joined to said centre body (A3) and a second opposite threaded end (BF1, BF2) suited to interact with a tightening element (C);
• at least one tightening element (C) comprising at least two parts (Cl, C2) that are internally threaded (CF1, CF2) and connected or suited to be connected to each other in such a way as to form said substantially circular tightening element (C) in the shape of a dome or a cap with conical taper (Cl 5),
and wherein screwing said tightening element (C) on said externally threaded end (BF1, BF2) of said half shells (Bl, B2) closes the two half shells (Bl, B2) and locks the electric cable of the plug (S) on said half shells (Bl, B2),
and wherein said first end of said half shells (Bl, B2) is configured to be hinged to said centre body (A3) or to be at least partially inserted in said centre body (C3) or to be both hinged to and at least partially inserted in said centre body (C3).
2. Adapter for industrial electrical sockets according to claim 1, characterized in that the semi-circular edges (B13, B23) of the two half shells (Bl, B2) become engaged with the edge (A6) of the centre body (A3) for the purpose of obtaining a tight coupling.
3. Adapter for industrial electrical sockets according to claim 1 or 2, characterized in that said half shells (Bl, B2) are hinged to the edge (A6) of said centre body (A3) by means of one or more coupling devices (BC1, BC2) positioned in proximity to the edges (B13, B23) and suited to become engaged with corresponding holding devices (A4) positioned in proximity to the edge (A6) of said body (A3).
4. Adapter for industrial electrical sockets according to claim 3, characterized in that said coupling devices (BC1, BC2) can be selectively released from said holding devices (A4).
5. Adapter for industrial electrical sockets according to claim 1, characterized in that said tightening element (C), comprising said parts (Cl, C2) internally threaded (CF1, CF2), comprises mutual and reversible coupling devices (C13, C14, C23, C24) suited to form said substantially circular tightening element (C) in the shape of a dome or a cap with conical taper (Cl 5, C25).
6. Adapter for industrial electrical sockets according to claims 1 or 5, characterized in that said tightening element (C) comprises a flexible connection element, or arch, between said parts (Cl, C2) that are internally threaded (CF1, CF2).
7. Adapter for industrial electrical sockets according to claim 1, characterized in that said tightening element (C) comprises at least two parts (Cl, C2) that are internally threaded (CF1, CF2) and are reversibly constrained to each other by means of a further binding element.
8. Adapter for industrial electrical sockets according to the preceding claims, characterized in that said second end (BF1, BF2) of said half shells (Bl, B2) comprises coupling elements or hooks (BU1, BU2) or projections which are integral with said half shells (Bl, B2) and whose ends rest on said conical taper (Cl 5, C25) of said tightening element (C), in such a way that when it is screwed said hooks (BU1, BU2) lock said cable in said adapter.
9. Adapter for industrial electrical sockets according to the preceding claims, characterized in that the edges (Bl 1, B12, B21, B22) of said half shells (Bl, B2) are complementary to each other, meaning that they are of the male/female coupling type with a centre wall that is positioned between two corresponding side walls of the edge of the opposite half shell, in order to obtain the tight coupling of the two half shells (Bl, B2).
10. Adapter for industrial electrical sockets according to the preceding claims, characterized in that the external surface of the cap or dome (C) is partially or completely knurled (CZ) for the purpose of improving the grip of the hand on the cap (C) itself.
11. Adapter for industrial electrical sockets according to the preceding claims, characterized in that it comprises a rubber element (G) which is substantially cylindrical in shape and is positioned inside the compartment (BFI1, BFI2) at the level of the terminal thread (BF1, BF2) so as to obtain a tight closure on the electric cable.
EP19730225.0A 2018-05-23 2019-05-22 Manually tightened adapter for plugs for civil and industrial use Active EP3797455B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000005635A IT201800005635A1 (en) 2018-05-23 2018-05-23 ADAPTER FOR CIVIL AND INDUSTRIAL PLUGS WITH MANUAL TIGHTENING
PCT/IB2019/054226 WO2019224738A1 (en) 2018-05-23 2019-05-22 Manually tightened adapter for plugs for civil and industrial use

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EP3797455A1 true EP3797455A1 (en) 2021-03-31
EP3797455B1 EP3797455B1 (en) 2022-01-19

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EP19730225.0A Active EP3797455B1 (en) 2018-05-23 2019-05-22 Manually tightened adapter for plugs for civil and industrial use

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EP (1) EP3797455B1 (en)
IT (1) IT201800005635A1 (en)
WO (1) WO2019224738A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11658438B1 (en) * 2021-12-17 2023-05-23 Shpp Global Technologies B.V. Electrical connector with integrated sealing mechanism

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309840U1 (en) * 1993-07-02 1993-09-02 Pflitsch Gmbh & Co Kg Device for the sealed laying of pipes, lines and the like.
US6234823B1 (en) * 1999-03-29 2001-05-22 Paul Martin Fuess Plug adapter having eccentric ring driving cord retention wedge
DE10356167A1 (en) * 2003-12-02 2005-07-07 Bosch Rexroth Ag Fully insulated connector
FR2965036B1 (en) * 2010-09-21 2012-10-19 Souriau DEVICE FOR SEALING A PITCH BY A BEAM OF PIPES AND METHOD FOR MOUNTING SUCH A DEVICE
ITMI20130315U1 (en) * 2013-09-20 2015-03-21 Renato Rosi ADAPTER DEVICE FOR INDUSTRIAL ELECTRICAL SOCKETS

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WO2019224738A1 (en) 2019-11-28
IT201800005635A1 (en) 2019-11-23
EP3797455B1 (en) 2022-01-19

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