FR2655487A1 - APPARATUS FOR ELECTRICAL INSTALLATION. - Google Patents

Abstract

This device is intended to be hung and fixed to bus bars (40) by means of hooks in its housing. The hooks used are independent of the housing (10). The height of an arm of these hooks (20), L-shaped, corresponds to the thickness of the bar (40) on which it will be placed. Sets of hooks of different heights allow the device to be attached to bus bars of different thicknesses. Application in particular to the fixing and connection of apparatus for electrical installation on bus bars.

Description

The present invention relates to an apparatus for installation

  electric, which can be hung and fixed by means of hooks from its case to bars of a set of

  The invention thus also aims at providing a

  device for fixing a device housing for installation

electric on bus bars.

  Devices of this kind can be supports

  of jumper fuses, adapter adapters

  In some bus bar sets, the bars have between them a fixed center distance, to which the arrangement of the hooks of the apparatus is adapted. The bars of these sets always have the same input. axes, but can

  have different thicknesses, there are difficulties

  to design the apparatus for installation or

  if they are intended to be used

  This is why known installation devices have on their casing clamping hooks adjustable perpendicularly to the bars, applied and locked against the opposite face of the bars by means of a bushing.

  adjusting screw, as described in the DE-B-

  3 309 360 But when laying the device on the bars

  omnibus, the mounting time of these hooks is consid-

  As, moreover, the tightening of these hooks

  also establishes an electrical contact between the omni-

  bus and the contact bars arranged in the housing of

  the device, it is also not certain that a good

  electrical contact is established with all bus bars if the adjustment screws are not sufficiently locked. Also known installation devices including hooks for attaching them to bus bars

  are integrally formed on the casing But this implies

  that it is necessary, for each thickness of the bus bars, specific devices whose openings of the hooks are adapted to the respective bars.

  A large number of types of these devices are required.

  The present invention aims to provide an apparatus for electrical installation of the above kind, which

  can be mounted simply and quickly on

  omnibus by ensuring a direct electrical contact with all the bars and which is easily usable in sets of bus bars having the same spacing, but different thicknesses. According to the invention, different hooks, independent of the housing of the apparatus, are respectively

  adapted to the various thicknesses of the bus bars and can

  can be fixed removably, directly to the housing; or

  many hook elements, all identical and interchangeable

  gables ("universal" or "standardized" hooks) combined with cleats adapted to the various thicknesses of the bars

  omnibus, can be fixed removably to the housing.

  It is possible to adapt the device to the thickness of the bus bars of a game, simply by replacing the

  hooks or cleats As then the opening of crochets

  chets always corresponds to the thickness of the bars, just hook the device to these bars to ensure the

  electrical contact with all these bars.

  In one embodiment, the hooks are L-shaped, of which one of the arms has a hole for a fixing screw, which can be screwed into a receiving hole in the housing, the distance between the underside of the this housing and the other arm, which is applied against the opposite side of the bar, being adapted

  to the thickness of the respective bar, so as to

  kill stocks of hooks corresponding to each thickness. It is also possible to adapt the hooks to the various thicknesses of the bus bars, by means of hook elements formed of a single branch applying against the opposite side of the bar and by connecting to the housing elements all identical associated with cleats

  adapted to the thickness of the respective bus bars,

  with a hole for passing a fastening screw which can be screwed into a

  receiving hole in the housing.

  In order to further improve the electrical contact, the hook arm which is applied against the other side of the bus bar may comprise, on the side of this bar, a T-section, recessed housing, oriented in the lengthwise direction. bars, which houses an elastic lamella

  bandaged, inserted perpendicular to these bars.

  This elastic lamella can be inserted more easily

  in his dwelling if one side of it,

  perpendicular to the bars, is closed by means of a partition. To allow to fix hooks or cleats

  the housing in the correct orientation, this housing can

  to wear, around its hole of housing of the screw, a

  U-shaped tubing, which surrounds and immobilizes in rotation a

  complementary shoulder of these hooks or cleats.

  In order to improve the contact of the hooks composed of a hook element and a cleat, the housing of this element may comprise a groove, oriented in the direction of the length of the bus bars, and in which is retained an end of an elastic strip disposed perpendicularly to these bars, the other end of this strip forming a plate pierced with a hole, the fixing screw immobilizes between the hook element and the cleat. In order for the hook element and the cleat to have correct relative orientations, this standardized element, in the form of an arm that bears against the opposite side of the bar, may comprise on the side of the cleat a protuberance

  U-shape which forms a housing intended to immobilize

  a shoulder formed on the adjacent side of this cleat.

  In addition, in order to facilitate assembly, the

  The fastening plate of the elastic lamella may be retained on a collar of the element-hook, penetrating into

  a cavity complementary to the adjacent face of the cleat.

  According to another characteristic, the end of the passage hole of the fastening screw in the element-hook

  can be flared in cone forming a countersink in the-

  the countersunk head of this screw can be embedded. The invention will now be described in a manner

  more detailed with the help of different examples of

  presented in a non-limitative manner and shown in the drawings in which: Figure 1 is a detail section showing the

  removable attachment of an L-shaped hook of a first

  on the housing of an appliance for electrical installation; Figure 2 shows the housing fixing area; Figure 3 is a section through the line III-III of Figure 2; Figure 4 is a section through the line IV-IV of Figure 5, the hook of Figure 1; Figure 5 shows the side facing the housing of the hook of Figure 4; Figure 6 is a section, similar to that of Figure 1, of a hook L of a second dimension; Figure 7 is a detail section of the attachment

  removable, to the housing of a device for electrical installation

  a hook composed of a standardized element and a cleat of a first dimension; Figure 8 is a section of the batten of Figure 7; Figure 9 is a top view of the face, facing the housing, of the batten shown in Figure 8; Figure 10 is a section of the standardized hook member, shown in Figure 7; Figure 11 is a top view of the face, facing the cleat, thecrochet element according to Figure 10; Figure 12 is a section of the attachment, removable on the housing of an apparatus for electrical installation, a hook composed of a standardized member and a batten of a second dimension; Figure 13 is a section of the batten according to Figure 12; and Fig. 14 is a sectional view of the standardized hook member identical to that shown in Figs.

and 11.

  The nature of the apparatus for installation, be it a fuse holder, a support or connection adapter or a device adapter, does not play any role in the invention. Therefore, it has not been shown a part of the housing 10 of this apparatus, the bottom of which is placed on bus bars 40 of a busbar and is in the plane of the part or upper face of these bars At the location of each bar 40, the housing is pierced with a receiving hole 11, which serves to place a hook 20 or 20 'as shown in Figures 1 and 6 These

  L-hooks 20 and 20 'are suitable for different thicknesses

  rents, for example 5 and 10 mm, respective bars 40

  and 41 The side of the hooks 20 or 20 'facing the

  below the housing 10 has a shoulder 27, which is housed in the correct orientation and immobilized in rotation in a housing of the housing 10 (Figures 4 and 5) This housing is formed by a U-shaped protuberance of the housing 10, which is formed by ribs 12, 13 and 14 grouped around the hole 11 (FIGS. 2 and 3) The hole 21 or 21 ', which allows the respective fixing screw 30 or 30' to pass through,

  passes in this shoulder 27 hooks 20 or 20 '.

  The end of this hole 21 or 21 'opposite the housing 10, is flared forming a countersink 22 or 22', in which is embedded the countersunk head of this screw 30 or 30 'The arms of the hooks 20 or 20', in which passes the hole 21 or 21 ', is adapted to the thickness of the busbar 40 or 41 respectively, so that the arm 23 or 23' is applied against the opposite side of this bar The length of the screws 30 and ' is adapted to the height of the hooks 20 or 20 'so that they can be screwed into the hole 11 of the housing, as shown by the sections according to Figures 1 and 6 The arm 23 or 23' has a housing 24 or 24 T-section detalised, oriented in the direction of the bars, 41 and closed at one end by a partition 28 or 28 ', that limits the insertion amplitude of an elastic strip 31 This strip 31 is placed bandaged in the 24 or 24 'housing so as to project from the arm 23 or 23' The ends of said lamella 31 are inserted in grooves 25, 26; 25 ', 26' of this housing 24 or 24 ', so that the blade 31 is retained captively in the arm 23 or 23' respectively, but can be deformed, so as to compensate for the tolerances when the device is

  attached to busbar 40 or 41, and to ensure sufficient blocking

  The slat 31 is perpendicular to the bars 40, 41.

  As shown in FIGS. 7 to 14, it is also possible to use hook elements 20 "which are all identical (standardized), which constitute only the arm which bears against the opposite side of the bar 40 or 41.

  different cleats 33 and 33 'assume adaptation to

  40 or 41 of different thicknesses The U-shaped protuberance of the housing 10, formed by the rods or ribs 12, 13 and 14, maintains the shoulder 35 or 35 'of the cleat 33 or 33'

  in the correct position preventing it from turning.

  The standardized 20 "hook element is thus immobilized and fixed

  in the exact position at the cleat 33 or 33 'The protu

  rance 34 or 34 'of the batten 33 or 33' respectively is housed in the correct orientation and immobilized in the housing

  of the adjacent face of the hook member 20 ".

  This housing is delimited by the U-shaped protuberance, whose edges 27 "and 28" are visible in the figures and 11 The fastening screw 30 or 30 'passes through the aligned holes 21 "and 36 or 36'. The shoulder 35 or 35 'of the cleat 33 or 33' serves, with the housing formed by the ribs 12, 13 and 14, to fix and immobilize the respective batten on the housing 10 On the side of this housing, the hook element 20 "still includes in its housing 24 "an elastic strip 31 ', one end of which is held in a groove 26", formed in this housing 24 "in the direction of the length of the bus bars 40 and 41 The other end of this resilient strip 31' forms the mounting plate 32, which is pierced with a hole for accommodating the collar 29 "of the hook member 20" The blade 31 can be easily attached to the element 20 "and be locked between the latter and the bracket 33 or 33 'respectively, when the fastening screw 30 or 30' applies the composite hook against the housing 10 The collar 29 "of the element 20" is

  inserted into a recess 37 or 371 of the corresponding

  The standard 20 "hook element can be used

  for any busbar Cleats 33 or 33 ',

  The invention is not limited to bus bars 40, 41 of two different thicknesses. It is necessary to prepare, for each thickness of the bars, a stock of corresponding cleats It is the same for the hooks of the embodiment according to Figures 1 to 6, which are differentiated by the dimensions of the pierced arm of

hole 11.

  It goes without saying that it is possible, without departing from the scope of the invention, to make modifications to the apparatus for electrical installation and hooks

represented and described.

Claims (11)

  1 Apparatus for electrical installation, capable of   to be hung and attached to bars of an omni   nibus by means of hooks in its casing, a device   characterized in that different hooks (20, 20 '), not secured to the housing (10), are adapted to the different thicknesses of the bus bars (40, 41) and can be   fixed directly and removably to the housing (10).   2 Apparatus according to claim 1, characterized in that elements hooks (20 ") identical (standardized), associated with cleats (33, 33 ') adapted to the different thicknesses of the bus bars (40, 41), can be fixed removably to the housing (10).   3 Apparatus according to claim 1, characterized in that the hooks (20, 20 ') have the shape of L, an arm is pierced with a hole (21, 21') for the passage of a screw (30, 30). '), which can be screwed into a receiving hole (11) in the housing (10), and that the distance between the underside of the housing (10) and the other arm (23, 23 '), which is applied against the opposite side of the respective bus bar (40, 41), is   adapted to the thickness of this bar.   Apparatus according to claim 2, characterized in that the hook members (20 ") form only one arm, which bears against the opposite side of the respective bus bar (40, 41); "), all identical, can be fixed to the housing (10) by being   associated with a respective cleat (33, 33 ') adapted to the thickness   of said bar (40, 41), and said hook members (20 ") and the cleats (33, 33 ') each being pierced with a hole (21', 36; 36 ') for passing a screw ( 30, 30 ') which can be screwed into a hole (11) of   receiving arranged in the housing (10).   Apparatus according to claim 3, characterized in that the hooks (20, 20 ') have, on their side facing the bus bar (40, 41) of their arms (23, 23'), which is applied against the side opposite this bar (40, 41) is a T-shaped, relieved housing (24, 24 ') which is oriented in the longitudinal direction of the bars (40, 41) and which houses an elastic lamella (31) bandaged, inserted   perpendicular to these bars (40, 41).   Apparatus according to claim 5, characterized in that the housing (24, 24 ') is closed by means of a   partition (28), on a side perpendicular to the omnidirectional bars bus (40, 41).   Apparatus according to any one of the claims   characterized in that the housing (10) has a U-shaped protuberance (12, 13, 14) around the screw receiving hole (11), which surrounds and immobilizes   in rotation a shoulder (27, 27 '; 35, 35') complements   the hook (20, 20 ') or the cleat (33, 33') respectively.   8 Apparatus according to claim 4, characterized in that the standard member (20 "), in the form of an arm (23") pressing against the opposite side of the bus bars (40, 41), has, on the side facing the cleat (33, 33 '), a U-shaped protrusion (38, 38') which forms a housing (24 ") for rotatably immobilizing a shoulder (34,   34 ') formed on the adjacent side of the cleat (33, 33').   Apparatus according to claim 8, characterized in that   what the housing (24 ") of the hook element (20") com-   carries a groove (26 "), which is oriented in the direction of the length of the bus bars (40, 41) and in which is retained an end of a resilient strip (31 ') bandaged, arranged perpendicular to these bars (40). , 41),   the other end of this lamella (31 ') forming a flat   fastener (32 ') which is pierced with a hole and which is immobilized by means of the fixing screw (30, 30')   between the hook element (20 ") and the cleat (33, 33 ').   Apparatus according to one of claims 8 and 9, characterized   characterized in that the plate (32 ') for fastening the elastic strip (31') is retained on a collar (29 ") of   the hook element (20 "), this collar penetrating into a recess   complementary element on the adjacent side of the cleat (33, 33 ').   Apparatus according to any one of the claims   previous arrangements, characterized in that the hole (21, 21 ', 21 ") pierced in the hook (20, 20') or in the hook member (20") to allow passage of the screw (30, 30 '), tapers into a cone forming a countersink (22, 22', 22 "), which houses the countersunk head of the screw (30, ') thus recessed.