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Title:
SECURITY SYSTEM ALLOWING ELECTRICITY POWER TRANSFER FROM A FIXED PANEL TO A MOBILE PLATFORM COMPOSED OF A HOSE CUFF SET IN A COAXIAL CABLE AND /OR OF POWER (VARIABLE VOLTAGE) AND/OR MASS, THAT IS INSERTED THROUGH AN INTERLOCKING SYSTEM OF A MECHANIC JUNCTION FINALIZED TO THE PREVENTION OF ACCIDENTS DERIVING FROM THE ACCIDENTAL DETACHMENT OF THE SUPPORTING CABLE
Document Type and Number:
WIPO Patent Application WO/2020/255110
Kind Code:
A1
Abstract:
The 'security system allows electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable'. The innovation combined by a bayonet system and the semi-rotation of the two components guarantee both the continuity of elctric power flow as well as the minimization of possible disconnections of the two components.

Inventors:
NISOLI LUCA (IT)
Application Number:
IB2020/057481
Publication Date:
December 24, 2020
Filing Date:
August 07, 2020
Export Citation:
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Assignee:
NWORLD S R L (IT)
International Classes:
H01R4/00; H01R13/213; H01R13/625; H01R13/639
Foreign References:
US20170294741A12017-10-12
US20090275246A12009-11-05
Attorney, Agent or Firm:
STUDIO LEGALE MASSOCIATI-AVV.STEFANIA SIRONI (IT)
Download PDF:
Claims:
CLAIMS

No.1 The‘ security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable’ is characterized by the fact that it consists of two components (device and junction) and is equipped by: - an interlocking system that allows the coupling of the device to the mechanical junction positioned on the support, with the sole rotation of a ring nut integrated in the device in which the cable for the electric power transfer is inserted; and - a locking mechanism that generates an elastic charge by deforming the bezel itself and blocks the entire system by means of two snap teeth and a harmonic spring.

No.2 The‘security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable’ as in the previous claim, is characterized by the fact that the mechanism of rotation and pressure of the ring nut (or even of the entire sleeve) placed on the device where the cable is engaged, already inserted in the stop, allows the fastening to the joint by means of the axial rotation of this one that goes under pressure and deforms itself, without the aid of any other tools.

No.3 The‘ security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable’ as in the previous claim, is characterized by the fact that the mechanical joint is equipped with a threaded screw which, when the ring nut is rotated, generates an assembly preload guaranteeing the coupling of the surfaces.

No.4 The“ security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable”, as in the previous claim, is characterized by the fact that it consists of a ring nut (or sleeve) equipped with two screw teeth that are positioned with blocking effect on the joint by engaging an anchor system.

No.5 The“ security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable”, as in the previous claim, is characterized by the fact that the sleeve or ring nut that composes it is equipped with two keys pushed by a spring that blocks the system without the aid of additional tools.

No.6 The“ security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable”, as in the previous claim, is characterized by the fact that the sleeve is engaged the size can be separated from it only by pressing the two keys equipped with harmonic spring and by the rotation in the direction of release.

AMENDED CLAIMS

received by the International Bureau on 16 November 2020

AMENDED CLAIMS

1. 1. A " security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power ( variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable ", is characterised by the fact that a coaxial cable connection is created, i.e. a system composed of two independent cable sections that need to be connected axially to each other in order to transmit current and signals. To make this connection, the system adopted consists of two different sleeves placed on the two ends of the cables so as to connect a first section that mounts a device connected to a fixed panel, electrical control panel, or a junction applied on a mobile platform intended as a transportable electrical control unit as if it were a case, and a second section that mounts another sleeve applied on a cable used to transport electricity.

Both ends are equipped with a mechanical interlocking system composed of geometries that allow the two elements to coalesce with the sole rotation of a ring nut integrated in the device in which the cable for current transfer is inserted. The two mechanical joints are engaged by means of a bayonet mechanism that generates the first locking phase with an elastic charge. The structure generated by the geometries of the interlocking teeth that couple with the surfaces of the corresponding joint in which the teeth are housed, creating a play of dimensional tolerances, makes it possible to guarantee adhesion between the two components to the structure of the joint. The second characteristic phase of the clamping is carried out by means of two keys operated by a harmonic spring in order to guarantee the certain position of the entire system and avoid disconnection. .

2. A "security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and/or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable”, as claimed above, is characterised by the fact that, the geometries of the teeth built on the sleeve enter the corresponding joint by exerting only hand pressure and find adhesion together with a rotation movement as the corresponding geometries built in the joint have the conformation of two wedge-shaped grooves built in the other half of the joint to accommodate and be coupled to the shapes of the teeth while maintaining a dimensional tolerance in the coupling such as to generate/induce a mechanical effort so that the two positive and negative surfaces come into forced contact with each other without breaking and remaining adherent. The height of the tine is built with an increasing dimension that varies by 0.5 millimetres, so as to generate a deformation inside the slot triggering the elastic pressure of the material.

3. A "security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and/or of power (variable voltage ) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable ", as claimed above, is characterised by the fact that the sleeve in its entirety is composed of two joints that both have a component called ring-nut in which the mechanical principle of coupling between positive and negative takes place. Precisely the positive part of a ring-nut is made up of wedge-shaped teeth, while the corresponding negative part of the other ring-nut is made up of grooves that welcome the teeth in the assembly creating a joint. The joint determines a coupling according to the mechanical principle of preload, i.e. the pressure of one surface on the other such as to create a forced union.

4. A " security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and/or of power (variable voltage ) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable", as claimed above, is characterised by the fact that the blocking effect is generated by the engagement of the two tines in the corresponding slots that determine the certain position inside the grooves, thus engaging the harmonic springs positioned under the two keys.

5. A "security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and/or of power (variable voltage) and/or mass, that is inserted through an inter locking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable ", as claimed above, is characterised by the fact that the ring nut is also equipped with two keys that are triggered by two harmonic springs when the teeth reach the end of the path generated inside the corresponding slots. This mechanism, i.e. the dual function of keys and teeth, allows the joint to be disconnected using both hands.

Description:
TITLE

Security system allowing electricity power transfer from a fixed panel to a mobile platform composed of a hose cuff set in a coaxial cable and /or of power (variable voltage) and/or mass, that is inserted through an interlocking system of a mechanic junction finalized to the prevention of accidents deriving from the accidental detachment of the supporting cable

DESCRIPTION

The present invention has as its object a mechanical joint which, combined with a cuff, allows the cables used for electric power transfer to be joined to a pre-existing support.

The invention is designed to be used in platforms and shipyards. In particular, in such places, in order to allow the operators to carry out their welding and carpentry tasks, it is necessary to transfer the electric power from the pre-existing fixed panel to the place of intervention. The connections known so far have the disadvantage of not allowing a strong and efficient anchoring and, in case of accidental movement of the joint, they do not guarantee a constant flow of energy, necessary to carry out complete welds. In addition, the connectors on the market, precisely because of the system used, only allow the use of ground wires and therefore very bulky.

Often during welding operations, the technician has to overcome the problem of accidental unhooking of the cuff, either due to the method of attachment to the mobile platform, or due to the obstruction of the voluminous cable used, by means of approximate mechanisms and with fallback devices that do not guarantee safety at work and in the yard (even from vibrations).

The junctions on the market cause accidents, unhooking with particular ease, having in use simple- beating interlocking systems. These systems are in fact constrained by the weight and size of the ground wire connected by means of a hose cuff, which makes it not easy - if not impossible - to rotate and interlock with any joint.

The invention overcomes this inconvenience by applying a bayonet coupling system with semi- rotation combined with a lock and release by means of safety snap buttons equipped with harmonic spring that allow to join coaxial cables used for electric power transfer to the support.

In an advantageous situation, this system prevents accidental detachment of the power cable from the supports or other cable trunks. In fact, the release takes place after manual and voluntary operation by the operator who, pressing simultaneously the two keys, must rotate the sleeve for its complete disconnection. The system also allows the transfer by means of coaxial cables which by their nature are much more manageable than those used until now.

In particular, the invention makes it possible to connect the sleeve to the mechanical joint installed on the support by means of a rotating ring nut in the blocking direction marked by the word‘close’ on the cuff. Once the two pieces are engaged, the security of the power transfer is guaranteed as well as the impossibility of the closing mechanism accidentally detaching.

Precisely, once the two pieces have been engaged, in order to separate them again, it is necessary to press the two buttons equipped with harmonic spring on the sleeve. The locking mechanism illustrated in this way, once engaged, does not allow the connector to turn in the ring nut to be extracted, except through the voluntary intervention of the technician who must press the keys and simultaneously turn in the direction of release (open).

The invention will now be explained with reference to the attached drawings, which show its details in the form of assembled item and also in the individual form of each component.

Table 1 (with A-B-C-D figures) shows the components of the invention.

The lateral projection of the entire assembled sleeve is represented in figure B.

The axonometric figure D shows the sleeve and the mechanical joint before engagement. In the same figure it is shown the coupling mechanism by means of rotation of the ring nut that engages in the joint.

Table 2 shows the two-dimensional sections of the sleeve.

In figure E, detail 2, the teeth of the button and the snap-on harmonic springs that allow the sleeve to be locked are highlighted.

In section F, it is shown the locking mechanism as engaged when the operator inserts the sleeve into the mechanical joint. From the same figure, it is possible to understand the mechanism of engagement of the invention and in particular how, rotating the ring nut in the indicated locking direction (close), it is engaged, by means of the double bayonet system and snap teeth of the keys, to the joint.

In figure E, table 2, component 5 is represented, which acts as a button and overhangs a harmonic spring, technically giving the sleeve the possibility to disengage only by voluntary intervention of the mechanical joint.

Figure E, position 7, shows how the system allows all its components and the pre-existing support to be locked and held firmly together, guaranteeing greater efficiency of power transfer during the welding use phase.

The aforesaid section E must also be compared with that of table 4 in order to understand the operating mechanism of the locking system, and in particular how, by fixing the central body of the connector, in which the cable is housed, in position 1 and engaging it in position 2 with locking effect, the screw named VI (figure E table 2) enters position 7 until it reaches the body in position 1 previously named (table 4 ) determining the lock.

In figure E it is also visible the snap button that allows, thanks to the spring that presses it, to hold the position 3 together with the position 7, definitively locking the piece in the anti-blocking position (close) and guaranteeing ergonomics to the grip and safety in the unlocking engagement phase, by inserting the position 1 in the position 2 that in its internal diaphysis has a stop, definitively locking the components.

In figure M, in detail 4 of table 3, it is shown how the mechanical joint that makes up the security system can be quickly mounted, by means of a threaded screw system, on control panels already on the market, on pre-existing welding generators as well as on possible mobile supports for different industrial sectors, in particular the naval one, thus allowing the rapid installation of the security system.