FR2545288A1 - BIPOLAR ADAPTER STRUCTURE FOR MULTIPOLAR ELECTRIC LINES OF THE SHIELD TYPE AS PART OF INSTALLATIONS FOR INTERIOR LIGHTING - Google Patents

Abstract

THE INVENTION CONCERNS A BIPOLAR ADAPTER STRUCTURE FOR MULTIPOLAR ELECTRIC LINES 1 OF THE SHIELDED TYPE EASILY ENGAGED IN A PROFILE 2 WITH A "U" SECTION AND MOUNTED INTERNALLY WITH TWO SERIES OF ELECTRIC CONDUCTORS 7A, 7B MAKING AROUND FACE, THIS ADAPTER STRUCTURE 12 INCLUDING A BUTTERFLY ELEMENT 20 EQUIPPED WITH A CONTROL HANDLE 22 ENSURING, on the one hand, the FIXING OF THE ADAPTER STRUCTURE 12 IN THE PROFILE 2 AND, ON THE OTHER HAND, THE ELECTRICAL CONNECTION BETWEEN ELECTRIC CONDUCTORS 7A, 7B AND THE CONTACTS PROVIDED INSIDE THE ADAPTER STRUCTURE 12.

Description

The present invention relates to a bipolar adapter structure

  for multipole electrical lines of the shielded type, forming part of interior lighting installations, comprising a first contact box body able to easily engage in a profile of an inverted U-shaped cross-section, internally furnished with two series facing electrical conductors; a second junction box body connected to a lighting unit, integral with said first boot body and intended to remain outside the section; a group of three contacts protruding from the same side of the first box body, these contacts being able to move towards the conductors by the cams of a vertically movable shaft arranged perpendicularly

  said drivers; actuators for actuating the control shaft

  of and blocking it in the chosen position and organs of

  blocking of the adapter structure on the profile.

  As we know, a bipolar adapter for power lines

  multipole type shielded is a device that fits

  in the profile supporting the power line and which allows a connection

  with the conductors of the latter Then carrying out the necessary connections of the electrical cables of a lighting unit with

  the adapter's wire clamps, the user can mount this light unit

rage on the adapter itself.

  Therefore, thanks to these adapters, the lighting units can

  be put in place on points of the line that are better suited to the requirements

these users.

  Currently, bipolar adapters of the type mentioned more

  top are present on the market under many embodiments.

  All these adapters are formed in essence of a first box body

  containing the contacts and a second connected box body inferiorly

  the first, which includes the control and locking devices,

  as well as the organs for connection to the lighting unit.

  The first box body is designed to be fully inserted into the section provided with the power line, while the second

  body is intended to protrude completely beyond the profile.

  This second box body, either by its own constitution, or

  the complexity of the construction of the enforcement and

  mentioned above, is a rather

  brante and of a poor maneuverability.

  The main object of the present invention is to eliminate at least the aforesaid drawbacks by providing a bipolar adapter for multipolar power lines of the shielded type, which is structured to be much less cumbersome than known adapters, at least in As regards the connection box body which projects out of the profile. Another important object of the present invention is to provide an adapter and its components structurally more simplified so that, on the one hand, can be reduced the colts of the construction and that, on the other hand, can be facilitated the use of the adapter by

the user.

  These goals, as well as other goals, will be better

  course of the description which follows, are achieved in accordance with the invention

  by a bipolar adapter structure for power lines

  multipoles of the armored type as part of a lighting installation.

  rage of interiors, which is characterized in that the setting bodies

  in action include a joystick with a blind hole,

  one end of the shaft which controls the output of the contacts, and peripherally provided with a recess in which a stop tooth formed on a movable pusher vertically is easily engaged by opposing elastic members, said contacts being generally arranged in axial alignment and cooperating with L-shaped plates for training

  clamps for clamping the electric cables of the lighting unit.

  Other features and advantages of the present invention are

  clear from the detailed description of an example of

  preferred, but not exclusive, embodiment of a bipolar adapter structure

  for multipolar power lines of the shielded type, description

  set out below with reference to the attached drawings, given as

  purely indicative, but not limiting, and in which -

  FIG. 1 shows in cross-section a multipolar electrical line

  the shielded type o is inserted the adapter according to the invention;

  Figures 2 and 3 are perspective views respectively of a c 6-

  and on the other side of the adapter designed according to an exemplary embodiment

preferred;

  FIG. 4 is a frontal and elevational view of the components

  the adapter shown in the previous figures and shown on an enlarged scale; and

  Figure 5 is a perspective view of the partially open adapter.

  Referring to the figures and the first of the particular one, -3 -

  the number 1 in the assembly means a multi-line

  polar, in the specific hexapolar case, of the armored type This line

  consists of a section 2 of anodized aluminum with a cross-section of

  This U-shaped section 2 is provided at the top of a pair of hook-shaped projections 3 which serve to fix this profile in the housing.

use cal.

  Inside, the profile 2 is provided with two pairs of upper projections 4 and two pairs of lower projections 5, the latter in the form of hooks, to allow-the housing of two continuous support elements 6 of dielectric material, for example polyvinyl chloride.

  The support elements 6 develop longitudinally - at the expense of

  2 of the profile and are provided with respective seats 6a and 6b,

  facing each other, in order to allow the housing of the conductive

  longitudinal electric motors 7a and 7b, three of which are

each support element 6.

  After mounting in the profile 2, the electrical conductors 7a and 7b face each other reciprocally and are accessible via longitudinal slots 8a, 8b, oriented each

towards the inside of the profile 2.

  In addition, in its upper internal part, the profile 2 is endowed

  a seat 9 developing longitudinally, able to accommodate a

  Finally, the two lower edges are denoted by 11

  section 2 which delimit the open space By referring to

  present in particular in FIGS. 2 to 5, the number 12 indicates in the

  seems an adapter structure that consists of a first body of

  contact box 51 and a second sub-terminal box body

52.

  The first box body 51 is made to engage easily with

  in the profile 2, while the second box body 52 is

  designed to be attached to a lighting unit not shown in the figures.

  The contact box body 51 is provided with a three-aperture throat 13, 14 and 15 with three respective contacts 16, 17 and 18,

  arranged axially in alignment and intended to come into contact

  electrical tact respectively and alternatively with the conductors 7 a

  and 7b, depending on the side on which is arranged the adapter 12 to -in-

  2 is a slot formed on both sides of the first contact boot body 51 and provided to allow the exit of the body members.

  blocking the adapter 12 on the profile 2.

  These members consist essentially of a butterfly element externally fixed on another element 21 integrally connected to a control lever 22 Between the sleeve 21 and the lever 22, it has been drilled

  a blind hole 23 which serves to accommodate a control shaft 24 equipped with a

  preferably a cam 25 and a dual cam member 26.

  The handle 22 is integral, in the direction of rotation, with the shaft 24 and the double-cam member 26, while it is movable at 4 along the proper axis for reasons which will be cleared below. Referring in particular to FIGS. 4 and 5, the contact 16 is created by a terminal rim formed in an elastic metal blade

  27 secured by its opposite end to the contact box body 51

  by means of a screw 28 The aforementioned end of the blade 27 cooperates, with the aid of a screw 29, with a plate 30 similar to an L to constitute a locking wire clamp of an electric cable present on the The light unit 27 is constantly engaged with the cam 25 mentioned above, made of insulating material and provided on the control shaft 24. By analogy with the contact 16> the contacts 17 and 18 are composed of

  also edges respectively created at the end of a blade metal-

  elastic band 31 designed in U and fixed on the box body 51 by means of

a pair of screws 62 and 63.

  The elastic metal blade 31 has an extension 31a intended to cooperate, with the aid of a screw 32, with another plate 33 shaped L to form a wire clamp able to clamp the other cable not shown,

connected to the lighting unit.

  By alternating up and down movement, the organ to be

  double cam 26 puts one of the two cams connected to it in contact al-

  ternatively with the portion of the blade 31 provided with the contact 17 or with the

  part of the same blade with the contact 18 In this way, it is pos-

  sible to get out through the opening 14 or 15 the contact chosen for a

determined use.

  Referring in particular to FIG. 4, the handle 22 is peripherally provided with a recess 34 in which it easily engages

  a tooth 35 formed on the pusher 36 -

  This pusher 36 is mounted on a suitable seat 37 located in -

  the first box body 51 and is pushed down by a spring

  licoidal 38 disposed on the seat 37 himself.

  Referring again particularly to FIGS. 4 and 5, there is provided,

  for contact with the earth conductor 10, a blade 39 of which -extremely

  The other end of the blade 39 is associated with a clamping element 41 supported by a screw 42, which is pushed upwards by a spring 40 mounted in a suitable housing formed in the upper end of the contact box body. disposed on a seat 43, so that even under conditions of maximum unscrewing, the screw 42 and the clamping element 41, which together form a real and clean thread clamp,

  can not fall inside or outside the adapter.

  Reference is now made to FIG.

  For the choice of the contact 17 or 18 to be used, there is provided, in the contact box body 51, an opening 44 of which partially leave the cams of the double cam member 26 Always referring to this

  same figure, is designated by 45 a flexible tongue protruding from

  actually beyond the second box body 52 and serving to prevent,

  with the butterfly 20, the actuation of the locking members of the adapter

  on the profile when said adapter is separated from this profile.

  When, on the contrary, the adapter is inserted into the profile, because of the pressure exerted by the lower edge 11 of said profile on

  the flexible tongue 45, the latter is lowered thereby making the papill

  lon 20 free to turn and fix the adapter on the 2 Fina-

  46 is a hollow part of the second connection box body 52, the inside of which is accessible via a hole 47 made in the lower part to allow the introduction of the electrical cables of the control unit. lighting to be put in place in the

wire clamp of the adapter.

  After having described the adapter according to the invention, for the most part in the structural sense, its operation is explained below.

extremely simple.

  The adapter 12 can be inserted into the profile 2 according to two posi-

  turned 180 degrees between them.

  The connection to the conductors 7b is made accessible in the first

  In the first position, the connection to the leads 7a is made accessible in the other position, while the connection to the ground conductor 10

  is, in a way, guaranteed in both positions.

  With regard to the other contacts, while the connection of the contact 16 with one of the conductors 7a and 7b is forced to establish,

  a choice is made among the other drivers 7a or 7b by moving ver-

  tically the double cam member 26 in order to successively

  contact 17 or contact 18 -

  The adapter is introduced into the profile 2 on the desired side, the pushchair 36 occupying a raised position and the lever 22 being disposed

  as shown in Figure 5 In this way, the joystick is free to perform

  its rotational movements and can be rotated in such a way that

  cams corresponding to the shaft 24 and the double cam member 26 have

  exert pressure on contacts 16 and 17 or 18 through

  respective blades 27 and 31 At the same time, the butterfly 20

  turns, which blocks the adapter on the profile At this time, the

  evening 36 is triggered automatically and brings the tooth 35 into the recess 34, so that the electrical contact with the conductors of the line

  remains established without the possibility of accidental or involuntary

  The adapter according to the present invention thus meets the proposed goals of considerable structural simplification, which reduces

  construction costs and congestion, in particular with regard to

  surrounds the second box body 52 which remains outside the section 2.

  Of course, many changes and modifications of the adapter structure according to the present invention can be made without

  however, to leave the framework of the latter.

-7 -

Claims (3)

claims,   1 Bipolar adapter structure for power lines   multipoles of the armored type, forming part of lighting installations.   interior-rage, comprising a first contact-box body able to easily engage in a profile of an inverted U-shaped cross-section, provided internally with two series facing each other of electrical conductors;   a second junction box body connected to a lighting unit   rage, integral with said first body of box and intended to remain outside   a group of three contacts protruding from the same side of the first box body, these contacts being controlled to move towards the drivers by the cams of a movable control shaft.   vertically and arranged perpendicularly to the said contacts,   the activation and disabling of the control shaft   in the chosen position and the locking members of the adaptive structure   an actuator on the profile, characterized in that the actuating members comprise a control lever (22) provided with a blind hole (23), rigidly inserting an end of the shaft (24) which controls the contacts, and peripherally provided with a recess (34) in which   easily engages a stop tooth (35) formed on a movable pusher (36)   vertically by opposing elastic members, said contacts   (16, 17, 18) being generally axially aligned and cooperating with each other.   with L-shaped plates (30) for the formation of wire clamps   electrical cables provided on the lighting unit.   2 adapter structure according to claim 1, characterized in that the second box body (52) is provided, in the partially projecting state, with a flexible tongue (45) which, when the adapter (12) is separated from the profile (2), prevents the actuation of the locking members   the adapter (12) on said profile (2).   Adapter structure according to claim 1, characterized   in that the resilient members provided for opposing the green movement   of the pusher consist of a helical spring (38) housed in the   same seat (37) as that of the pusher (36).