CA1179434A - Switch with several layers of cross points - Google Patents
Switch with several layers of cross pointsInfo
- Publication number
- CA1179434A CA1179434A CA000374939A CA374939A CA1179434A CA 1179434 A CA1179434 A CA 1179434A CA 000374939 A CA000374939 A CA 000374939A CA 374939 A CA374939 A CA 374939A CA 1179434 A CA1179434 A CA 1179434A
- Authority
- CA
- Canada
- Prior art keywords
- wires
- groove
- switch according
- plugs
- grooves
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/207—Cross-bar layouts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/14—Distribution frames
- H04Q1/145—Distribution frames with switches arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A SWITCH WITH SEVERAL LAYERS OF CROSSING POINTS
ABSTRACT OF THE DISCLOSURE
A switch with several layers of crossing points which is particularly useful in telephone switching offices, in which switch selection may be effected by coordinates. The switch is composed of several layers of parallel wires oriented in a first direction, and of several second layers of wires oriented in a direction perpendicular to the first layers. The first and second layers are piled up in an intercalated manner, each layer of wires being supported by a frame of insulating material. A
crossing point is constituted by two wires located in two neighboring layers, and a conductor surface of a plug, the height of its conductor surface being sufficient electrically to connect a segment of wire of the upper layer to a segment of the perpendicular wire of the lower layer. Each first layer is constituted by a plurality of row wires of uneven ranks and a plurality of row wires of even ranks. Each second layer is constituted by a plurality of column wires of uneven ranks and by a plurality of column wires of even ranks. The row wires and the column wires of uneven ranks form a first matrix, and the row wires and column wires of even ranks form a second matrix.
ABSTRACT OF THE DISCLOSURE
A switch with several layers of crossing points which is particularly useful in telephone switching offices, in which switch selection may be effected by coordinates. The switch is composed of several layers of parallel wires oriented in a first direction, and of several second layers of wires oriented in a direction perpendicular to the first layers. The first and second layers are piled up in an intercalated manner, each layer of wires being supported by a frame of insulating material. A
crossing point is constituted by two wires located in two neighboring layers, and a conductor surface of a plug, the height of its conductor surface being sufficient electrically to connect a segment of wire of the upper layer to a segment of the perpendicular wire of the lower layer. Each first layer is constituted by a plurality of row wires of uneven ranks and a plurality of row wires of even ranks. Each second layer is constituted by a plurality of column wires of uneven ranks and by a plurality of column wires of even ranks. The row wires and the column wires of uneven ranks form a first matrix, and the row wires and column wires of even ranks form a second matrix.
Description
3~
01 The present invention relates to a 02 matrix-type switch with several layers of crossing 03 points especially usable in telephone or other 04 distributors, or in similar devices. It relates to 05 such a switch with selection by coordinates.
06 The switch described in Canadian Patent 07 Application 358,076, filed August 12, 1980 assigned to 08 the same assignee as the present application, is 09 formed of several first layers of parallel wires, oriented in a first direction, and of several second 11 layers of wires oriented in a direction perpendicular 12 to the first layers, the first and the second layers 13 oE wires being intercalated relative to one another.
14 Each layer of wires is supported by a grid of insulating material with a square mesh. Each mesh has 16 a conductor wire running through it, which wire is 17 parallel to one of its sides. The grids of the second 18 layers are angularly shifted by one quarter of a 19 rotation, all in the same direction, relative to the grids of the first layers. One crossing point is 21 constituted by two superposed adjacent meshes and a 22 conductor surface of a plug the axis of which is 23 perpendicular to the plane of the layers, and which is 24 plugged into the meshes of the crossing point and which makes it possible electrically to connect the 26 wire segment of the upper mesh to the wire segment of 27 the lower mesh. Each plug plugged into a pile of 28 crossing points is fitted with as many conductor 29 cylindrical rings as there are crossin~ points being superposed. Each ring has a height chosen to 31 constitute the conductor surface of a single crossing 32 point. In some cases, the conductor surface of the 33 plugs are constituted only by ring sectors and the 34 plugs comprise crescent-shaped heads the horns (points) of which cooperate with the flexible teeth of 36 the selection bars which can be deformed by the teeth ~7~
01 of the work bars. The selection and work bars are 02 crossed. Each selection bar can be pushed in one 03 direction this determining, wi-th a working work bar, 04 the rotation of a plug head by one quarter of a 05 rotation in one direction, and can be pulled in the 06 other direction, that determining, with a working 07 adjacent work bar, the rotation of the same head by 08 one quarter of a rotation in the other direction. The 09 rotation in one direction or in the other causes the conductor sectors of the rings of the plug to set or 11 to break the connections of the piled-up crossing 12 pointsO In the other case, the conductor surfaces of 13 the rings are constituted by complete circular rings 14 and the closing or the opening of the crossing points is obtained by displacing the plugs in a direction 16 perpendicular to the plane of the layers, either in 17 one direction or in the other.
18 Thus, in the switch described in Canadian 19 Patent Application 358,076 in each couple of grids required to form a crossing point, a plug is wedged by 21 the two sides of the insulating superposed meshes, by 22 the wire of a mesh which constitutes a third side, and 23 by the perpendicular wire of the other mesh which 24 cons~itutes the fourth side. The plug thus is held in place by two rigid sides and by two flexible sides.
26 The space existing between the conductors and the 27 sides of the adjacent meshes are wasted. As, in 28 addition, the widths of the mesh sides are relatively 29 more important than that of the conductor wires, there results (from that arrangement) that, in a grid, more 31 than half the useful surface is lost.
32 One object of the present invention 3~ consists in providing for a switch with several layers 34 of crossing points, similar to the one described in Canadian Patent Application 358,076, but in which the 36 space actually used is practically double that of the 37 former switch.
-01 Another object of the present invention 02 consi.sts in providing for a switch in which the 03 con-tact points of the plugs are in a position of 04 equilibrium, whatever their state.
05 Another object of the invention consists 06 in providing for a switch in which -the plugs have, 07 relative to the s-tep (pitch) of the layers of wires, a 08 diameter relatively larger than do those used in the 09 switches described in the above-mentioned main patent and the first certificate of addition.
11 ~nother object of the invention consists 12 in providing for a switch which makes it possible to 13 execute folded matrices.
1~ Another object of the presen~ invention consists in prov.iding for a plug head having a 16 structure, and for a governing member making it 17 possible to group all of the plug heads at the top of 18 the pile, that reducing the relative volume occupied 19 by -the governing device and thus increasing the possi-bi~ities of connection at the level of the openings.
21 Another object o the invention consists 22 in providing for a plug head governing member such 23 that accessibleness is rendered possible over a single 24 face of the pile.
According to a characteristic of the 26 invention, there is provided for a switch comprising 27 several layers of parailel wires oriented in a ~irst 28 direction, and several layers of parallel wires 29 oriented in a direction perpendicular to the first one, the first and second layers being piled up in an inter-31 calated manner. Each layer of wires is supported by a 32 frame of insulating material. A crossing point is 33 constituted by two wires located in two neighboring 34 layers and a conductor surface of a plug, the height of the conductor surface being sufficient electrically to 36 connect a segment of wire of the upper layer to a 37 segment of the perpendicular wire of the lower layer.
38 Each first layer is constituted by a plurality of row 39 wires oE uneven rank and by a plurality of row wires ~0 - 3 ~
~'7 ~
of even rank, each s0cond layer being for~ed by a plurality of column wires of uneven rank forr,~ig a first matrix and by a plurality of col~nn wires of even rank forming a second matrix, first crossing points being formed by the row and colwnn wires of the first matrix, (by) conductor surfaces of first plugs which are wedsed between said row and column wires of the first matrix, and the row and column wires of the sarne rank Or the second matrix, second crossing points being formed by the row and colwnn wires of the second matrix and conductor surfaces of second plugs which are wedged between said row and colurnn wires of the second matrix and the row and column wires of upper ranks of the first matrix, the first and second plugs having a diameter uhich is superior to the mesh side of the wire layers, each conductor area of ~ plug compr-ising a first and a second contact surfaces galvanically connected tog~ether, the an,ular positions of the first and of the second contact surfaces being shifted by 90, and their axial distances being equal to those of t~o adjacent layers.
According to another ch~racteristic, the conductor surfaces present the shape of an L in ~rhich the base of the L corresponds to a 90 arc, and the height o~ the L (corresponds) to the distance between the layers in one direction and the layers in the other direction.
According to another characteristic, the first plugs have their heads at the top of the switch~ and the second plug9 have their head at the bottom of the pile-up.
.
~ccording to another characteristic, each la-.er of wires is placed, without any blocking~ in grooves provided for in the OpDOSite sides of a frame of plastic ~aterialO
5.
~ccording to another characteristic, each frame is fitted with first slits on two opposite sides, which support the conductors (wires) and with second slits on the two other opposite sides, the pile-up being constituted by frames alternately shifted by 90, the second slits of an upper frame being positioned over the oonductors or wires placed in the first slits of the lower adjacent frame hccording to another characteristic of the present invention, there is provided for a switch in ~nich each plug head is co~posed of a low cam-chaoed part comprising two arcs of cercles of different diameters joined by segments and surmounted by an upper part in the shape of a crank oresentin, at its end a vertical indentation, said indentation forming a gear surface for a vertical flexible finger carried by a governing rod of a switching member, the guiding module of the governing member having lug pieces against which one or the other of the cam se~ments and/or one or the other side Or the cranks come to hit According to another characteristic, the heads of all of theplugs are placed on a same side of the pile-up of crossing points.
Accordin~ to another characteristic, the length of the cranks is greater than the side of the squares formed by the layers of wires, the large diameter of the ca~s being slightly inrerior to said side of the squares~
~ccording to another characteristic3 the active end of each governing rod is flexible and it has, at the point of suspension of the vertical flexible fin er, a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove presenting a concave up-turned curvature, the rod being connected to ~eans for translation displacement which cause the 3~
01 stud to describe the groove, in one direction or in 02 the other, at each switching, the high points of the 03 groove being at a level such that the low end of the 04 finger will be above the cranks, while the low zone of 05 the groove is at a level such that said low end 06 engages the indenta~ion of a crank.
07 According to another characteristic, a row 08 of lug pieces out of two is eliminated, and the 09 switching member comprises two parallel governing rods.
11 The above-indicated characteristics of the 12 invention, as well as other, will appear more clearly 13 upon reading of the following description of examples 14 of execution, said description being given relative to 15 the attached drawing in which:
16 Figure 1 is a schema-tic view from the top 17 of a switch according to the present invention.
18 Figure 2 is a schematic view of a crossing 19 point of the switch in Figure 1, in a larger scale.
Figures 3a to 3d are schematic views meant 21 to illustrate the operation of the switch in Figure 1.
22 Figure 4 is a schematic view, in 23 perspective, of a group of plugs used in the switch in 24 Figure 1.
Figure 5 is a perspective view, partly 26 torn, of a switching unit in which ~here axe used 27 switches according to Figure 1.
28 Figure 6 is a perspective view of the unit 29 in Figure 5, the various elements (of same) being 30 fitted into one another.
31 Figures 7A and 7B are schematic views 32 which illustrate a variation of operation.
- \
~igures 8a to 8c respectively are elevatedJ plane and end views of the active part o the switching governing member and of plug heads~ according to the present invention.
Fi~ures 9a to 9c are schematic views which show the changes of state of a , _ switching plug head, and Figure 10 is an enlarged ~iew of the plug head ~ (2~2) and of t~o of the three lug pieces located in its immediate vicinity, The switching element, partially represented in Figure 1, comprises a first matrix of conductor wires formed by a layer of ro~ wires Hl~l, Hl.2 etc., and by a layer of column wires Vl.l, Vl.2, etc., and a second matrix of conductor wires formed of a laver of row wires H2.1, H2.2, etc., and of a layer of column wires V2.1, V2.2, etc. Layers Hl and H2 of row wires are in a same horizontal plane, the wires of one layer being alternated with the wires of the other layer. Layers Vl and V2 of ~olumn wires also are in a same horizontal plane, but which is different from that of layers Hl and H2, the wires of layers Vl and V2 also being alternated. In practice, layers Hl and H2 are on one side of an insulating frame Cl, while layers Vl and V2 are on the other side of the frame. The edges of frame Cl are fitted, on one side, with notches 1 which are parallel to layers Hl and H2, into which there are inserted the ends of the wires of those layers, and, on the other side, with notches 1 parallel to layers Vl and V2 to maintain the ends of the wires of those layers. It must be noted that the wires are not blocked in notches 1. Between notches 1, the frames present inward turned swellings 2.
The first and the second matrices of conductor wires form, -together~
a matrix of squares D(Hl.p.H2.q;Vl.r.V2.s) in which Hl.p, H2.q, Vl.r and V2.s ~7~
~ .
are the references of the wires forming the square. In practice, p and q can differ only by one unit, and the same is true for r and 9.
Squares D for which p and q are equal, as are r and 9~ are fitted with plugs F (p,r). Squares D for which q is inferior to p and s is inferior to r are fitted with plugs F'(p,r). Thus there has been sho-~n, in Figure 1 the plug F~l.l) in the square formed by the wires Hl.l, H2.1, n.l and V2.1, plug F(1,2) in the square formed by the wires Hl.l, H2.1., Vl.2 and V2.2, plug F(2,1) in the square ormed by the wires Hl.2, H2.2, n.l and V2.13 plug F(2,2) in the square forrned by the wires ~1.2, H2.2, Vl.2, and ~2.2, etc. In the same manner t~ere has been shown Plug F'(2,2) in the square defined by the wires Hl.2, H2.1, Vl.2 and V2.1~ plug F~(3,2) in the square defined by the wires Hl.3,H2.2, V1.2 and V2.1, etc.
As an example, as shown in Figure 2, plug F'(2~2)~ which comprises as the other plùgs a conductor area or surlace 3~ has a diameter slightly greater than the side of the square in which it is lodged, that is to sa~ a diameter which is ~reater than one half of the step or pitch of a layer of wires.
Therefore it deforrns the square into a drum as also do the four plugs F(l,l), F(1,2), F(2,1) and F(2,2) adjacent (to it). As plugs F~ the plu~s F' are arranged in a quincuncial manner each wire is alternately bent in one direc-tion and in the other. It must be noted that swellin7s 2, which form semi-circles toward the insida, play the part of plu~s for the wires ~hich are adjacent to the ed~es of the frame.
It must be noted that there is thus obtained a uniform distribution of the contact pressures between the surfaces of the plugs and the conductor wires.
When the plug is rotated inside its square in order to set or to brake electric continuities, the distribution of the pressures is not modified.
3 ~
01 Several layers of row and column wires can be 02 superposed. There results from that that the cylinder 03 oE each plug is interwoven with four, eight, twelve, 04 sixteen or more bent wires or beams, depending on the 05 number of layers. That structure makes it possible to 06 ahsorb the possible size deviations which may affect 07 the diameters of the plugs, on the four arrows or 08 more, without for as much disturbing the functioning 09 of the adjacent plugs.
In addition, it appears that the elements 11 of the switch reach a state of auto-equilibrium only 12 at the contacts of the conductor wires and of the 13 plugs.
14 Figure 3a represents the two adjacent plugs F(2,1) and F'(2,2), as well as the conductors 16 H2.1, Hl.2, H2.2, Vl.l, V2.1 and V1.2 which are 17 interwoven with them. Plug F(2,1) comprises a 18 conductor surface 3 shaped like an L, the upper part 19 of the L being at the level of the column conductors while the bottom of the L is at the level of the row 21 conductors. The height of a surface therefore is 22 approximately equal to the diffexence of level between 23 the upper adge of the column conductors and the lower
01 The present invention relates to a 02 matrix-type switch with several layers of crossing 03 points especially usable in telephone or other 04 distributors, or in similar devices. It relates to 05 such a switch with selection by coordinates.
06 The switch described in Canadian Patent 07 Application 358,076, filed August 12, 1980 assigned to 08 the same assignee as the present application, is 09 formed of several first layers of parallel wires, oriented in a first direction, and of several second 11 layers of wires oriented in a direction perpendicular 12 to the first layers, the first and the second layers 13 oE wires being intercalated relative to one another.
14 Each layer of wires is supported by a grid of insulating material with a square mesh. Each mesh has 16 a conductor wire running through it, which wire is 17 parallel to one of its sides. The grids of the second 18 layers are angularly shifted by one quarter of a 19 rotation, all in the same direction, relative to the grids of the first layers. One crossing point is 21 constituted by two superposed adjacent meshes and a 22 conductor surface of a plug the axis of which is 23 perpendicular to the plane of the layers, and which is 24 plugged into the meshes of the crossing point and which makes it possible electrically to connect the 26 wire segment of the upper mesh to the wire segment of 27 the lower mesh. Each plug plugged into a pile of 28 crossing points is fitted with as many conductor 29 cylindrical rings as there are crossin~ points being superposed. Each ring has a height chosen to 31 constitute the conductor surface of a single crossing 32 point. In some cases, the conductor surface of the 33 plugs are constituted only by ring sectors and the 34 plugs comprise crescent-shaped heads the horns (points) of which cooperate with the flexible teeth of 36 the selection bars which can be deformed by the teeth ~7~
01 of the work bars. The selection and work bars are 02 crossed. Each selection bar can be pushed in one 03 direction this determining, wi-th a working work bar, 04 the rotation of a plug head by one quarter of a 05 rotation in one direction, and can be pulled in the 06 other direction, that determining, with a working 07 adjacent work bar, the rotation of the same head by 08 one quarter of a rotation in the other direction. The 09 rotation in one direction or in the other causes the conductor sectors of the rings of the plug to set or 11 to break the connections of the piled-up crossing 12 pointsO In the other case, the conductor surfaces of 13 the rings are constituted by complete circular rings 14 and the closing or the opening of the crossing points is obtained by displacing the plugs in a direction 16 perpendicular to the plane of the layers, either in 17 one direction or in the other.
18 Thus, in the switch described in Canadian 19 Patent Application 358,076 in each couple of grids required to form a crossing point, a plug is wedged by 21 the two sides of the insulating superposed meshes, by 22 the wire of a mesh which constitutes a third side, and 23 by the perpendicular wire of the other mesh which 24 cons~itutes the fourth side. The plug thus is held in place by two rigid sides and by two flexible sides.
26 The space existing between the conductors and the 27 sides of the adjacent meshes are wasted. As, in 28 addition, the widths of the mesh sides are relatively 29 more important than that of the conductor wires, there results (from that arrangement) that, in a grid, more 31 than half the useful surface is lost.
32 One object of the present invention 3~ consists in providing for a switch with several layers 34 of crossing points, similar to the one described in Canadian Patent Application 358,076, but in which the 36 space actually used is practically double that of the 37 former switch.
-01 Another object of the present invention 02 consi.sts in providing for a switch in which the 03 con-tact points of the plugs are in a position of 04 equilibrium, whatever their state.
05 Another object of the invention consists 06 in providing for a switch in which -the plugs have, 07 relative to the s-tep (pitch) of the layers of wires, a 08 diameter relatively larger than do those used in the 09 switches described in the above-mentioned main patent and the first certificate of addition.
11 ~nother object of the invention consists 12 in providing for a switch which makes it possible to 13 execute folded matrices.
1~ Another object of the presen~ invention consists in prov.iding for a plug head having a 16 structure, and for a governing member making it 17 possible to group all of the plug heads at the top of 18 the pile, that reducing the relative volume occupied 19 by -the governing device and thus increasing the possi-bi~ities of connection at the level of the openings.
21 Another object o the invention consists 22 in providing for a plug head governing member such 23 that accessibleness is rendered possible over a single 24 face of the pile.
According to a characteristic of the 26 invention, there is provided for a switch comprising 27 several layers of parailel wires oriented in a ~irst 28 direction, and several layers of parallel wires 29 oriented in a direction perpendicular to the first one, the first and second layers being piled up in an inter-31 calated manner. Each layer of wires is supported by a 32 frame of insulating material. A crossing point is 33 constituted by two wires located in two neighboring 34 layers and a conductor surface of a plug, the height of the conductor surface being sufficient electrically to 36 connect a segment of wire of the upper layer to a 37 segment of the perpendicular wire of the lower layer.
38 Each first layer is constituted by a plurality of row 39 wires oE uneven rank and by a plurality of row wires ~0 - 3 ~
~'7 ~
of even rank, each s0cond layer being for~ed by a plurality of column wires of uneven rank forr,~ig a first matrix and by a plurality of col~nn wires of even rank forming a second matrix, first crossing points being formed by the row and colwnn wires of the first matrix, (by) conductor surfaces of first plugs which are wedsed between said row and column wires of the first matrix, and the row and column wires of the sarne rank Or the second matrix, second crossing points being formed by the row and colwnn wires of the second matrix and conductor surfaces of second plugs which are wedged between said row and colurnn wires of the second matrix and the row and column wires of upper ranks of the first matrix, the first and second plugs having a diameter uhich is superior to the mesh side of the wire layers, each conductor area of ~ plug compr-ising a first and a second contact surfaces galvanically connected tog~ether, the an,ular positions of the first and of the second contact surfaces being shifted by 90, and their axial distances being equal to those of t~o adjacent layers.
According to another ch~racteristic, the conductor surfaces present the shape of an L in ~rhich the base of the L corresponds to a 90 arc, and the height o~ the L (corresponds) to the distance between the layers in one direction and the layers in the other direction.
According to another characteristic, the first plugs have their heads at the top of the switch~ and the second plug9 have their head at the bottom of the pile-up.
.
~ccording to another characteristic, each la-.er of wires is placed, without any blocking~ in grooves provided for in the OpDOSite sides of a frame of plastic ~aterialO
5.
~ccording to another characteristic, each frame is fitted with first slits on two opposite sides, which support the conductors (wires) and with second slits on the two other opposite sides, the pile-up being constituted by frames alternately shifted by 90, the second slits of an upper frame being positioned over the oonductors or wires placed in the first slits of the lower adjacent frame hccording to another characteristic of the present invention, there is provided for a switch in ~nich each plug head is co~posed of a low cam-chaoed part comprising two arcs of cercles of different diameters joined by segments and surmounted by an upper part in the shape of a crank oresentin, at its end a vertical indentation, said indentation forming a gear surface for a vertical flexible finger carried by a governing rod of a switching member, the guiding module of the governing member having lug pieces against which one or the other of the cam se~ments and/or one or the other side Or the cranks come to hit According to another characteristic, the heads of all of theplugs are placed on a same side of the pile-up of crossing points.
Accordin~ to another characteristic, the length of the cranks is greater than the side of the squares formed by the layers of wires, the large diameter of the ca~s being slightly inrerior to said side of the squares~
~ccording to another characteristic3 the active end of each governing rod is flexible and it has, at the point of suspension of the vertical flexible fin er, a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove presenting a concave up-turned curvature, the rod being connected to ~eans for translation displacement which cause the 3~
01 stud to describe the groove, in one direction or in 02 the other, at each switching, the high points of the 03 groove being at a level such that the low end of the 04 finger will be above the cranks, while the low zone of 05 the groove is at a level such that said low end 06 engages the indenta~ion of a crank.
07 According to another characteristic, a row 08 of lug pieces out of two is eliminated, and the 09 switching member comprises two parallel governing rods.
11 The above-indicated characteristics of the 12 invention, as well as other, will appear more clearly 13 upon reading of the following description of examples 14 of execution, said description being given relative to 15 the attached drawing in which:
16 Figure 1 is a schema-tic view from the top 17 of a switch according to the present invention.
18 Figure 2 is a schematic view of a crossing 19 point of the switch in Figure 1, in a larger scale.
Figures 3a to 3d are schematic views meant 21 to illustrate the operation of the switch in Figure 1.
22 Figure 4 is a schematic view, in 23 perspective, of a group of plugs used in the switch in 24 Figure 1.
Figure 5 is a perspective view, partly 26 torn, of a switching unit in which ~here axe used 27 switches according to Figure 1.
28 Figure 6 is a perspective view of the unit 29 in Figure 5, the various elements (of same) being 30 fitted into one another.
31 Figures 7A and 7B are schematic views 32 which illustrate a variation of operation.
- \
~igures 8a to 8c respectively are elevatedJ plane and end views of the active part o the switching governing member and of plug heads~ according to the present invention.
Fi~ures 9a to 9c are schematic views which show the changes of state of a , _ switching plug head, and Figure 10 is an enlarged ~iew of the plug head ~ (2~2) and of t~o of the three lug pieces located in its immediate vicinity, The switching element, partially represented in Figure 1, comprises a first matrix of conductor wires formed by a layer of ro~ wires Hl~l, Hl.2 etc., and by a layer of column wires Vl.l, Vl.2, etc., and a second matrix of conductor wires formed of a laver of row wires H2.1, H2.2, etc., and of a layer of column wires V2.1, V2.2, etc. Layers Hl and H2 of row wires are in a same horizontal plane, the wires of one layer being alternated with the wires of the other layer. Layers Vl and V2 of ~olumn wires also are in a same horizontal plane, but which is different from that of layers Hl and H2, the wires of layers Vl and V2 also being alternated. In practice, layers Hl and H2 are on one side of an insulating frame Cl, while layers Vl and V2 are on the other side of the frame. The edges of frame Cl are fitted, on one side, with notches 1 which are parallel to layers Hl and H2, into which there are inserted the ends of the wires of those layers, and, on the other side, with notches 1 parallel to layers Vl and V2 to maintain the ends of the wires of those layers. It must be noted that the wires are not blocked in notches 1. Between notches 1, the frames present inward turned swellings 2.
The first and the second matrices of conductor wires form, -together~
a matrix of squares D(Hl.p.H2.q;Vl.r.V2.s) in which Hl.p, H2.q, Vl.r and V2.s ~7~
~ .
are the references of the wires forming the square. In practice, p and q can differ only by one unit, and the same is true for r and 9.
Squares D for which p and q are equal, as are r and 9~ are fitted with plugs F (p,r). Squares D for which q is inferior to p and s is inferior to r are fitted with plugs F'(p,r). Thus there has been sho-~n, in Figure 1 the plug F~l.l) in the square formed by the wires Hl.l, H2.1, n.l and V2.1, plug F(1,2) in the square formed by the wires Hl.l, H2.1., Vl.2 and V2.2, plug F(2,1) in the square ormed by the wires Hl.2, H2.2, n.l and V2.13 plug F(2,2) in the square forrned by the wires ~1.2, H2.2, Vl.2, and ~2.2, etc. In the same manner t~ere has been shown Plug F'(2,2) in the square defined by the wires Hl.2, H2.1, Vl.2 and V2.1~ plug F~(3,2) in the square defined by the wires Hl.3,H2.2, V1.2 and V2.1, etc.
As an example, as shown in Figure 2, plug F'(2~2)~ which comprises as the other plùgs a conductor area or surlace 3~ has a diameter slightly greater than the side of the square in which it is lodged, that is to sa~ a diameter which is ~reater than one half of the step or pitch of a layer of wires.
Therefore it deforrns the square into a drum as also do the four plugs F(l,l), F(1,2), F(2,1) and F(2,2) adjacent (to it). As plugs F~ the plu~s F' are arranged in a quincuncial manner each wire is alternately bent in one direc-tion and in the other. It must be noted that swellin7s 2, which form semi-circles toward the insida, play the part of plu~s for the wires ~hich are adjacent to the ed~es of the frame.
It must be noted that there is thus obtained a uniform distribution of the contact pressures between the surfaces of the plugs and the conductor wires.
When the plug is rotated inside its square in order to set or to brake electric continuities, the distribution of the pressures is not modified.
3 ~
01 Several layers of row and column wires can be 02 superposed. There results from that that the cylinder 03 oE each plug is interwoven with four, eight, twelve, 04 sixteen or more bent wires or beams, depending on the 05 number of layers. That structure makes it possible to 06 ahsorb the possible size deviations which may affect 07 the diameters of the plugs, on the four arrows or 08 more, without for as much disturbing the functioning 09 of the adjacent plugs.
In addition, it appears that the elements 11 of the switch reach a state of auto-equilibrium only 12 at the contacts of the conductor wires and of the 13 plugs.
14 Figure 3a represents the two adjacent plugs F(2,1) and F'(2,2), as well as the conductors 16 H2.1, Hl.2, H2.2, Vl.l, V2.1 and V1.2 which are 17 interwoven with them. Plug F(2,1) comprises a 18 conductor surface 3 shaped like an L, the upper part 19 of the L being at the level of the column conductors while the bottom of the L is at the level of the row 21 conductors. The height of a surface therefore is 22 approximately equal to the diffexence of level between 23 the upper adge of the column conductors and the lower
2~ edge of the row conductors. The length of the L's foot is of the order of one quarter the circumference 26 of the plug. In the position indicated in Figure 3a, 27 plug F(2,1) is assumed to be in its rest position or 28 state "0". Indeed, surface 2 is in contact with 29 conductor H2.2, but it is insulated from conductors Vl.l and V2.1. No current can pass through plug 31 F(2.1).
32 Plug F(2,2) also comprises a conductor 33 surface 3', which is identical with area 3 and located 34 at the same level. In the position indicated in Figure 3a, plug F'(2,2) also is in its postion of rest 36 or state "0". Area or surface 3' is in contact with 37 conductor Hl.2, but it is insulated from conductors 38 V2.1 and V2.2. No current can pass through plug 39 F'(2,2).
_ 9 _ ~1.. ' lOo In Figures 3a to 3d there have been represented slits 4 and 4' at the top Or the plugs, those slits simply having as their purpose to schematically represent a means to caus~ the plugs to rotate by means of a screw-driver.
Of course> in a practical form of execution the plugs comprise heads having a rnore elaborate shape and which make~ it possible to ca~se their rotation by means of switching members.
In Figure 3_, it is assumed that plug Fl(2,2) has been made to rotate in the counter-clockwise direction, by one quarter of a rotation, as indicated by arrow Pl. The position of plug F(2,1) has not been modi~ied. Surface
32 Plug F(2,2) also comprises a conductor 33 surface 3', which is identical with area 3 and located 34 at the same level. In the position indicated in Figure 3a, plug F'(2,2) also is in its postion of rest 36 or state "0". Area or surface 3' is in contact with 37 conductor Hl.2, but it is insulated from conductors 38 V2.1 and V2.2. No current can pass through plug 39 F'(2,2).
_ 9 _ ~1.. ' lOo In Figures 3a to 3d there have been represented slits 4 and 4' at the top Or the plugs, those slits simply having as their purpose to schematically represent a means to caus~ the plugs to rotate by means of a screw-driver.
Of course> in a practical form of execution the plugs comprise heads having a rnore elaborate shape and which make~ it possible to ca~se their rotation by means of switching members.
In Figure 3_, it is assumed that plug Fl(2,2) has been made to rotate in the counter-clockwise direction, by one quarter of a rotation, as indicated by arrow Pl. The position of plug F(2,1) has not been modi~ied. Surface
3' of plug F(2,2) now has its upoer part in contact with conductor H21, that establishing an electric circuit between Vl 2 to H2.1, through 3~.
The crosslng point is closed. Plug ~'(2.2) is at work or in state ~1", while plug F(2.1) still is in state "O".
In Figure 3c, it has been assumed that plug F(2~1) has been made to counter-rotate in a/cloclcwise direction, by one auarter of a rotation, as indicated by arrow P2. The position of plug F'(2.2) has remained that represented in Figure 3b. Sur~ace 3 ~f plug F(2,1) now has its upper part in contact ~th conductor V2.1~ and its lower part in contact with conductor Hl.2~
this establishing an electric circuit between V2.1 and Hl.2, through 3. The ~rossing point now i9 closed. Plug F(2,1) is working or it is in state "1", as is plug r '(2,2) In Fi~ure 3d, it has been assumed that plug F'(2,2) has been ~ade to rotate in the direction of the hand of a clock, by one quarter of a rotation, as indicated by arrow P3. The position of plug F(2,1) has not been modified relative to that in Figure 3c~ Therefore, plug F'(2~2) ras taken bac~ the position it had in Figure 3_, that is to say it has . ` -11 .
come back to skate "O", plug F(2,1) remaining in the state "1".
In order to cause plug F(2~1) to change to state "O", it is sufficient, as indicated by arrow P~ in Figure 3a, to cause it to rotate by one quarter of a rotation in a cloc~Jise direction.
The switchings which have just been described relative to Figures 3a to 3d indicate that there exists no interaction between the plugs having reference markings F and those having reference markings ~l.
The perspective view in Figure ~ shows, as an example, the Tour plugs F'~2,2), F'(2,3), F'(3,2) and F'(3,3) the governing heads 5~ of which are at the bottom, and plu~ F(2,2~the ~overning head 5 of which is at the top. There have also been represented some of the conductors of the two layers with which those plu~s can close contacts, that is to say, for the uooer layer, conductors Xl.2, H2.2, Vl,2 and ~2.2 and, for the lower layer, conductors Xl.2, K2.2, Ul.2 and U2.2, the latter ones being deduced from the first ones by simple translation.
Arrow F(2,2) comprises a cylindrical body 6 fitted l~qth a head 5, the entire complex 5,6 being of insulating plastic material. Body 6 is fitted ~ith c ontact small blades 3 in a nu~ber equal to the number of layers of the switch. Said small blades 3 present the sha~e of an ~, as already described relative to ~iO~ures 3_ to 3d.
Head 5 co~prises a cylindrical lower part 7 and an upper part in the form of a circular sector 8J which presents a c~lindrical swelling~in its center~ The center of the sylindrical swelling 9 has~ above it, a small knob (pion) 10 in the form of a cone. Of course, the body 6 of the plug, , ~ . .. . ... .
01 the cylinder of 7, that of 9 and cone 10 rotate around 02 the aame axis. The sectorial part 8 is limited by 03 planes 11 and 12 which together form an angle at the 04 center slightly inferior to 180.
05 Plug head 5 is meant to be used with a 06 switching member of the type of that described in the 07 Canadian patent application, indicated above.
08 At the opposite (end) of head 5, stem or 09 body 6 ends with a co-axial cylindrical projection 13 the diameter o~ which is definitely inferior to that 11 of said body.
12 All of the plugs bearing reference marking 13 F are identical to plug F(2,2), which has just been 14 described. Plugs having reference marking F' have their bodies 6' and their small contact blades 3' 16 which can be deduced from the translation of body 6 17 and of small blades 3. Heads 5' can be deduced from 18 heads 5 by symmetry, relative to the median plane 19 perpendicular to the axes of the plugs.
In Figure 4, plugs F(2,2), F'(2,2), 21 F'(3,2) and F'(3,3) are assumed to be in the "0"
22 state, while plug F'(2,3) is assumed to be in state 23 "1". Therefore, plug F'(2,3) presents a current 24 pas~age from respectively conductors Vl.3 and Ul.3 respectively to conductors Hl,2 and Kl,2 as indicated 26 by arrows P6 and P7.
27 Figure 5 schematically represents, in 28 partially torn view, the elements of a unit of pile-up 29 of switches according to the invention, associated with governing elements. That complex comprises a 31 governing module cover 14, a group of F' plugs, an 32 upper panel 15, a first supporting grid 16, a second 33 supporting grid 17, a third supporting grid 18 fitted 34 into a fourth ~6 ..~' , ,,~
1 i h ~
supporting grid3 a lower panel 20J a group of F plugs, and a governing module cover 21.
Supporting grid 16 is formed by a rectangular frame comprising two parallel narrow sides 22 and 23, and two parallel wide sides 24 and 25, perpendicular to the first ones. The cross section of sides 22 and 23 presents the shape of a square one horizontal arm 26 of which is relatively long and thick relative to the vertical arm 27. In addition, arm 26 carries an upward projecting part 28. The cross-section of sides 24 and 25 also presents the form of a square the horizontal arm 29 of which is identical to arm 26 and the vertical arm 30 of ~lhich is identical to arm 27. ~rm 29 also carries an opward porjecting ?art 31.
Arms 26 and 29 f~f~ a practically tapproximateLy) square fra~e the internal edges of ~hich are joined by a series of equidistant bars 32 at 45 and by a series of equidistant bars at 135. Bars 32 and 33 have a height equal to the thickness of arms 26 and 29; they are peroendicular to one another;
they form the grid properly s?eaking into ~hich plugs F and ~ are pushed.
The ~5 rotation of the grid relative to the alig~ments of the plugs F
and F' ensure the quincuncial arrange~ent represented in Figure 1. The squares of the grid of bars 32 and 33 have a side the length of which is slightly superior to the diameter of the plug bodies, so that the latter can be loiged into them with an aopreciable play.
Arms 27 and 30 for~, under arms 26 and 20, a ledge (rim (?) the height of which is equal to that of the projecting parts 2~ and 31. Projecting parts 28 and 31 form an upward-turned edge, while the edge formed by 27 and 30 iS turned downward, the arran~ement of those edges bein7 such that the one formed by 27 and 30 fits around the one formed by 2~ and 31. In .
- ~ -3 ~
14.
addition~ the upper edge formed by the pro~ectin~ parts of sides 22 and 23 presents grooves 34 the pitch of which i9 that of the conductors (wires) of the switch. The upper edge formed by the parts projecting fro~ sides 24 and 25 does not present any grooves. The lower edge formed by arms 30 tand 27 ~) of sides 24 and 25 aLso comprise~grooves 35 the pitch of which is that of the ~res or conductors of the switch. Ths upper ~dge formed by arms 27 of sides 22 and 23 does not comprise any grooves.
Finally, edges 24 and 25 comprise horizontal edges 38 the upper face of which is lined up with that of arms 29 and the thickness of which is appreciably smaller than that of 29. Those edges 35 make it possible to separate the lay~rsor external ends of the conductors or wires.
~rid 17 is identical to grid 16, but it is shifted by 90 relative to the latter. Said angular shift is translated by alignments between grooves 35 Or grid 17 and grooves 34 of grid 163 and so forth in the pile up.
There has been represente~ grid 18 which is identical with grid 16 and oriented9 it~ with a few vertical wires Vl.l~ V2.1, Vl.2 and V2.2 placed in the corresponding ~rooves 34. The ~edian plane of conductors (wires) Vl.l, and V2.1 passes throu~h the center of the corresponding scuares formed by bars 32 a~d 33. The distance between n.l and V2.1 is, as indicated relative to ~igure 1, slightly inferior to the diameter OL the plugs body.
The representation of grids 18 and 19 also shows how said grids fit on top of each other, grid 19 being shifted by 90 relative to grid 18. It also shows the ends of the horizontal wires Hl.l, H2.1, Hl.2, and H2.2 fitted into ~rooves 35 of grid 18 and grooves 34 of grid 19. ~s an exa~ple, 15, a terminal 37 is affixed to the end of conductor (wire~ H191~ said terminal 37 bein~ provided so that it can be connected to the corresponding wire of a cable.
Panel 15 is a part which practically presents the shape of the part of grid 16 located below the level of the upper edges of bars 32 and 33, minus edges 36g but over which there is a square plate pierced with a series o~
holes 38 and 39.
Holes 38 are provided to run through them the bodies of plugs F'~ and holes 39 zre provided to receive the cylindrical studs or projections 13 of plugs F
Panel 20 is a simpLe square pla~e provided to be inscribed inside the perimeter formed by ed~e 27-30 of grid 19, immediately above it. It comprises series of holes ~0 and 41. Holes 40 are provided to receive the cylindrical studs or projections of plugs F' and holes 40 to receive plugs F.
Cover 1~ comprises as many grooves 42 the step or pitch of ~lich is that of plugs F~ and which are oriented in the same direction as the rows of F~ plugs, or even in the direction Or the hori~ontal conductors (wires).
The height of grooves ~2 is equal to the hei~ht of a plug head, pl~ the height of a commutation (sl~itching) member~ The bottom of partitions 43 which define the grooves, as well as that of external walls 4~, come in contact with the upper face of panel 15, running between the plugs.
Cover 21 is simi~ar to cover 1~, with grooves oriented in the same direction, However, in the described exa~ple, it comprises an additional groove because plugs F are more numerous that plugs F'.
01 Figure 6 shows the whole of the elements 02 in ~'igure 5, fi-tted into one another, plugs F and F' 03 being set in place in the inside. There can be noted 04 the compactness of the whole which practically 05 comprises twice the number of crossing points, 06 relative to the switches described in Canadian patent 07 application 358,076.
08 Of course, in Figure 5, there has been 09 shown a switch which comprises only two layers of crossing points for the sole purpose of simplifying 11 the drawing, it being understood that a switch would 12 comprise, in practice, x layers of crossing points, x 13 varying from 2 to 7 for applications to 14 telecommunications.
Figures 7A to 7~ represent a variation in 16 the governing device of the plugs, relative to the 17 governing device described relative to Figures 3A to 18 3D. In Figure 7A, plugs F(2,1) and F'(2,2) both are l9 in the "0" state. In Figures 7B, plug F'(2,2) has been made to rotate by one quarter of a rotation in 21 the direction of arrow P'2 which is the reverse of the 22 direction of arrow P2 in Figure 3B. It can be seen 23 that arrow F'(2,2) establishes an electric circuit 24 between V2.1 and Hl.2, through surEace 3'. Plug F'(2,2) has changed to state "l". In Figure 3C, plug 26 F(2,1) is made to rotate in the direction of arrow 27 P'3, the reverse direction -from arrow P3. Figure 3C, 2~ that causing plug F(2,1) to change to state "l", etc.
29 In that way, there are obtained different switchings by causing the plugs to rotate in one direction or in 31 the other, this offering a remarkable flexibility of 32 use.
33 Figures 8a to 8c represent a switching 34 member 45 introduced in a groove 46 of a cover 47 to switch by rotation one of the plugs of the associated 36 pile, that is, for example, plug G(2,2). Figure 8a is 37 a section view 17.
along line VIIIa- VIIIa in Figure 8c; Figure 8b is a section view along line VIIIb-VIIIb in Figure 8a~ and Figure 8c is a vertical section view along line VIIIc-VIIIc in Figure 8b Plug G(2~2) comprises a cylindrical body 48, similar to body 6, fitted with a head ~9 which is different from head 5, the entire complex ~8 and 49 being made of insulating plastic material. Body 48 is fitted with small contact blades 50, in a n~ber equal to the number of layers Or the switch.
Those small blades 50 have a shape which is approximately that of an S
and they work, as will be seen below, in the manner already described relative to Figures 3A to 3D.
Head 49 of plug G~2,2), Figure 10, comprises a lower part 51 in the shape of a ca~n, and a higher part 52 in the form of a crank which presents at its end a vertical cut out 53 Cam 51 is limited by the arc of a circle 54 the an~le at the center of ~Jhich is close to 2~0, and of larger diameter, and (by) an arc of a circle 55 the angle at the center of which is close to 120 and of smaller diameter, arcs 54 and 55 being joined by straight (ri$ht ?) segments 56 and 57 which are lined up. Crank 52 is solidary of cam 51, and it has at its top a cone-shaped projection 58. Arcs 54, 55, body 48 and projection 58 have the same axis of revolution, axis 59.
Grooves 46 of cover 47 a~æ defined by vertical partitions which are either perforated or continuous, partitions 60, which are solidary of the upper plate of the cover and the lo~er free ed~es of which each have a series of lug pieces B(n,p), in ~ich n and p correspond to the indeces of the plug ~ith ~hich the lug~is associated. The whole complex of lug pieces B(n,p) therefore presents a quincuncial shape as does that the the whole cor?lex of plugs. The horizontal section of a lug piece B(n,p) , ,,jl. ` ~
~'7 presents a six-sided polyeonal shape one long side 61 of which is parallel to the direction of partitions 60, two equal sides 62 and 63 which are adjacent and perpendicular to 61~ two oblique sides 6~ and 65 respectively adjacent to 62 and to 63, and a small side b6 which joins the ends cf b~ and of 65 and which is parallel to 60a The distance between the sides 61 and 66 is greater than the thickness of partition 60~ and the diference in length is distributed on each side of said partition.
The angles of sides 64 and 65 are such that, when head 49 is made to rotate in one direction, segment 56 comes to hit (apply as a lug piece) against side 6~, and tnat, when head ~9 is made to rotate in the other direction~
the segment comes to hit (apply as a lug piece) against side 65~ In addition, the section of lug piece Btn,p) comprises an axis of symmetry which is perpendicular to 60 and ~lich runs through axis 59 of plug G(n,p).
Switchin~ member 45 is composed of a U-shaped profile 67 the U of which is ~ownward turned and the width of wnich is equal to that of a groove 46 The end 68 of the profile is be~elled to render easier the introduction o~ the member into a groove. In profile 67, there is lodged a slide 69 the body 70 of which occupies the free space inside the U and which ends with a flexible rod or stem 71 the section of which is definitely smaller, and which occupies, in the state of rest, an upper part of the volume defined by the UD As shown in Figures 9a to 9c, rod or stem 71 has an approximately square section; it prese.~s, moving upward and seen from the top, a first elbow 72 to the right, then a straight part 73 and, finally, a second elbow 7~ sy~etrical with the first one. On straight part 73, toward the outside, there is fixed a stud 7~ which is engaged in a groove 76 o~ the corresponding lateral wall of profile 67. Under the straight 3~
19.
part 73 there is set a relatively long and flexible finger 77, Groove 76 presents the shape of an arc of circle the concave side of ~hich is upward turnedD
The length of finger 77 and the level cf the high points of groove 76 are such that it is possible, when stud 75 is in one of the high points of 76, to move member 45 in a groove ~6, without modifying the positions of the plug heads which are located under the end of finger 77. The low level (the level of the bottom) of the arc of groove 76 is such that, when slide 69 is moved relative to profile 67, the end of finger 77 moves downward enou3h to engage ln the vertical notch or cut-out 53 of a crank 52.
Figure 9a scne~atically shows the slide 69 beyond plu3 head G(2,2).
Fi,ure 9b shows the intermediary position of slide 69 during the s~itching, in the direction of arrow F4 (P4 ?~, of the head. Finger 77 has moved downward, it has engaged in cut-out 53 and therefore has caused the head to rotate by ~. In that position, rod or stem 71 is subjected to a torsion ~hich can be seen in Figure 8c, which represents that state. Figure 9c shows the final position of the switching, in which stud 75 has gone up at the other end of groove 76. Fin3er 77 again is completely above the heads, this making possible the ~ithdrawal of switching member 45~
In order to perform the switching in the opposite or reverse d rection o~ arrow F~ there would~ta~en, as initial position, that represented in Figure 5c and~ as final position, that represented in Fi~ure 9a, the intermedia~y position still bein3 that in Fi~ure 9b~
rigure 8a shows how the movements of the cranks and of the cams of the plu3 heads are limited by lug pieces B(n,p), each allowed rotation being over 90 in one direction or in the other, that corresponding to the :
20.
f`unctioning in Figu~es 3a to 3d. It will be noted that in the course o~
the rotation of G(2~2)J its crank 52 passes above parts 51 of the neigh-boring heads (G'(3,2) and G'(3,3). In practice, the level of the lower plane of crank 52 can be slightly abo~e the level of the upper plane of part 51. Thus, in the course of the rotation, there is no contact between the elements of the nei~hborin7 heads. Crank 52 has as its object to lengthen the lever arm on which fin~er 77 acts, that is to say to lessen the effort supplied by said fin7er.
Fi~ure 8b shows slide 69 in dash-dot lines, in the position represented in ~i~ure 9a, and in fin~ ;ine in the position represented in Figure 9b and in heavy line in the position represented in Fi~ure gc, the numerical references of the elements of the slide being in~icated only for the fine line drawin7. The plane view in Figure 8b especially shows the di~ferent positions 77a, 77b and 77c of finJer 77 at different stages of the switchingO
their It will also be noted~ in Fi7ure 8a~ that in ~ rest position, the plug heads have two bearing surfaces, one by an ed~e of cam 51, the other by an edge of cranX 52, on two lug pieces B(n,p). In one variation of execution~ one row out OL t~-o of lug pieces B(n,p) is eliminated, in that case we have two shifted rows of plug heads. At rest, ~or one row of plug heads3 the bearing sur~ace is located between one edge of crank and one lug piece and, for the other row, between a cam ed~e and a lug piece. It is then possible to use a switchin~ member the ~dth of which is appro~imately double that of ~ember 45, and ~hich contains two slides respectively allocated to the one and to the other row of plug heads.
Fi~ures 9a to 9c also show an example of execution Or a contact 50 which~
01 instead of having the already described L shape, 02 presents the shape of an S. The upper part of the S
03 can come in contact with the conductor of the layer 04 located at the lowest level and which is perpendicular 05 to the first layer. The intermediary part between the 06 zones of contact properly speaking of the S, is 07 radially fitted into the body of -the plug.
The crosslng point is closed. Plug ~'(2.2) is at work or in state ~1", while plug F(2.1) still is in state "O".
In Figure 3c, it has been assumed that plug F(2~1) has been made to counter-rotate in a/cloclcwise direction, by one auarter of a rotation, as indicated by arrow P2. The position of plug F'(2.2) has remained that represented in Figure 3b. Sur~ace 3 ~f plug F(2,1) now has its upper part in contact ~th conductor V2.1~ and its lower part in contact with conductor Hl.2~
this establishing an electric circuit between V2.1 and Hl.2, through 3. The ~rossing point now i9 closed. Plug F(2,1) is working or it is in state "1", as is plug r '(2,2) In Fi~ure 3d, it has been assumed that plug F'(2,2) has been ~ade to rotate in the direction of the hand of a clock, by one quarter of a rotation, as indicated by arrow P3. The position of plug F(2,1) has not been modified relative to that in Figure 3c~ Therefore, plug F'(2~2) ras taken bac~ the position it had in Figure 3_, that is to say it has . ` -11 .
come back to skate "O", plug F(2,1) remaining in the state "1".
In order to cause plug F(2~1) to change to state "O", it is sufficient, as indicated by arrow P~ in Figure 3a, to cause it to rotate by one quarter of a rotation in a cloc~Jise direction.
The switchings which have just been described relative to Figures 3a to 3d indicate that there exists no interaction between the plugs having reference markings F and those having reference markings ~l.
The perspective view in Figure ~ shows, as an example, the Tour plugs F'~2,2), F'(2,3), F'(3,2) and F'(3,3) the governing heads 5~ of which are at the bottom, and plu~ F(2,2~the ~overning head 5 of which is at the top. There have also been represented some of the conductors of the two layers with which those plu~s can close contacts, that is to say, for the uooer layer, conductors Xl.2, H2.2, Vl,2 and ~2.2 and, for the lower layer, conductors Xl.2, K2.2, Ul.2 and U2.2, the latter ones being deduced from the first ones by simple translation.
Arrow F(2,2) comprises a cylindrical body 6 fitted l~qth a head 5, the entire complex 5,6 being of insulating plastic material. Body 6 is fitted ~ith c ontact small blades 3 in a nu~ber equal to the number of layers of the switch. Said small blades 3 present the sha~e of an ~, as already described relative to ~iO~ures 3_ to 3d.
Head 5 co~prises a cylindrical lower part 7 and an upper part in the form of a circular sector 8J which presents a c~lindrical swelling~in its center~ The center of the sylindrical swelling 9 has~ above it, a small knob (pion) 10 in the form of a cone. Of course, the body 6 of the plug, , ~ . .. . ... .
01 the cylinder of 7, that of 9 and cone 10 rotate around 02 the aame axis. The sectorial part 8 is limited by 03 planes 11 and 12 which together form an angle at the 04 center slightly inferior to 180.
05 Plug head 5 is meant to be used with a 06 switching member of the type of that described in the 07 Canadian patent application, indicated above.
08 At the opposite (end) of head 5, stem or 09 body 6 ends with a co-axial cylindrical projection 13 the diameter o~ which is definitely inferior to that 11 of said body.
12 All of the plugs bearing reference marking 13 F are identical to plug F(2,2), which has just been 14 described. Plugs having reference marking F' have their bodies 6' and their small contact blades 3' 16 which can be deduced from the translation of body 6 17 and of small blades 3. Heads 5' can be deduced from 18 heads 5 by symmetry, relative to the median plane 19 perpendicular to the axes of the plugs.
In Figure 4, plugs F(2,2), F'(2,2), 21 F'(3,2) and F'(3,3) are assumed to be in the "0"
22 state, while plug F'(2,3) is assumed to be in state 23 "1". Therefore, plug F'(2,3) presents a current 24 pas~age from respectively conductors Vl.3 and Ul.3 respectively to conductors Hl,2 and Kl,2 as indicated 26 by arrows P6 and P7.
27 Figure 5 schematically represents, in 28 partially torn view, the elements of a unit of pile-up 29 of switches according to the invention, associated with governing elements. That complex comprises a 31 governing module cover 14, a group of F' plugs, an 32 upper panel 15, a first supporting grid 16, a second 33 supporting grid 17, a third supporting grid 18 fitted 34 into a fourth ~6 ..~' , ,,~
1 i h ~
supporting grid3 a lower panel 20J a group of F plugs, and a governing module cover 21.
Supporting grid 16 is formed by a rectangular frame comprising two parallel narrow sides 22 and 23, and two parallel wide sides 24 and 25, perpendicular to the first ones. The cross section of sides 22 and 23 presents the shape of a square one horizontal arm 26 of which is relatively long and thick relative to the vertical arm 27. In addition, arm 26 carries an upward projecting part 28. The cross-section of sides 24 and 25 also presents the form of a square the horizontal arm 29 of which is identical to arm 26 and the vertical arm 30 of ~lhich is identical to arm 27. ~rm 29 also carries an opward porjecting ?art 31.
Arms 26 and 29 f~f~ a practically tapproximateLy) square fra~e the internal edges of ~hich are joined by a series of equidistant bars 32 at 45 and by a series of equidistant bars at 135. Bars 32 and 33 have a height equal to the thickness of arms 26 and 29; they are peroendicular to one another;
they form the grid properly s?eaking into ~hich plugs F and ~ are pushed.
The ~5 rotation of the grid relative to the alig~ments of the plugs F
and F' ensure the quincuncial arrange~ent represented in Figure 1. The squares of the grid of bars 32 and 33 have a side the length of which is slightly superior to the diameter of the plug bodies, so that the latter can be loiged into them with an aopreciable play.
Arms 27 and 30 for~, under arms 26 and 20, a ledge (rim (?) the height of which is equal to that of the projecting parts 2~ and 31. Projecting parts 28 and 31 form an upward-turned edge, while the edge formed by 27 and 30 iS turned downward, the arran~ement of those edges bein7 such that the one formed by 27 and 30 fits around the one formed by 2~ and 31. In .
- ~ -3 ~
14.
addition~ the upper edge formed by the pro~ectin~ parts of sides 22 and 23 presents grooves 34 the pitch of which i9 that of the conductors (wires) of the switch. The upper edge formed by the parts projecting fro~ sides 24 and 25 does not present any grooves. The lower edge formed by arms 30 tand 27 ~) of sides 24 and 25 aLso comprise~grooves 35 the pitch of which is that of the ~res or conductors of the switch. Ths upper ~dge formed by arms 27 of sides 22 and 23 does not comprise any grooves.
Finally, edges 24 and 25 comprise horizontal edges 38 the upper face of which is lined up with that of arms 29 and the thickness of which is appreciably smaller than that of 29. Those edges 35 make it possible to separate the lay~rsor external ends of the conductors or wires.
~rid 17 is identical to grid 16, but it is shifted by 90 relative to the latter. Said angular shift is translated by alignments between grooves 35 Or grid 17 and grooves 34 of grid 163 and so forth in the pile up.
There has been represente~ grid 18 which is identical with grid 16 and oriented9 it~ with a few vertical wires Vl.l~ V2.1, Vl.2 and V2.2 placed in the corresponding ~rooves 34. The ~edian plane of conductors (wires) Vl.l, and V2.1 passes throu~h the center of the corresponding scuares formed by bars 32 a~d 33. The distance between n.l and V2.1 is, as indicated relative to ~igure 1, slightly inferior to the diameter OL the plugs body.
The representation of grids 18 and 19 also shows how said grids fit on top of each other, grid 19 being shifted by 90 relative to grid 18. It also shows the ends of the horizontal wires Hl.l, H2.1, Hl.2, and H2.2 fitted into ~rooves 35 of grid 18 and grooves 34 of grid 19. ~s an exa~ple, 15, a terminal 37 is affixed to the end of conductor (wire~ H191~ said terminal 37 bein~ provided so that it can be connected to the corresponding wire of a cable.
Panel 15 is a part which practically presents the shape of the part of grid 16 located below the level of the upper edges of bars 32 and 33, minus edges 36g but over which there is a square plate pierced with a series o~
holes 38 and 39.
Holes 38 are provided to run through them the bodies of plugs F'~ and holes 39 zre provided to receive the cylindrical studs or projections 13 of plugs F
Panel 20 is a simpLe square pla~e provided to be inscribed inside the perimeter formed by ed~e 27-30 of grid 19, immediately above it. It comprises series of holes ~0 and 41. Holes 40 are provided to receive the cylindrical studs or projections of plugs F' and holes 40 to receive plugs F.
Cover 1~ comprises as many grooves 42 the step or pitch of ~lich is that of plugs F~ and which are oriented in the same direction as the rows of F~ plugs, or even in the direction Or the hori~ontal conductors (wires).
The height of grooves ~2 is equal to the hei~ht of a plug head, pl~ the height of a commutation (sl~itching) member~ The bottom of partitions 43 which define the grooves, as well as that of external walls 4~, come in contact with the upper face of panel 15, running between the plugs.
Cover 21 is simi~ar to cover 1~, with grooves oriented in the same direction, However, in the described exa~ple, it comprises an additional groove because plugs F are more numerous that plugs F'.
01 Figure 6 shows the whole of the elements 02 in ~'igure 5, fi-tted into one another, plugs F and F' 03 being set in place in the inside. There can be noted 04 the compactness of the whole which practically 05 comprises twice the number of crossing points, 06 relative to the switches described in Canadian patent 07 application 358,076.
08 Of course, in Figure 5, there has been 09 shown a switch which comprises only two layers of crossing points for the sole purpose of simplifying 11 the drawing, it being understood that a switch would 12 comprise, in practice, x layers of crossing points, x 13 varying from 2 to 7 for applications to 14 telecommunications.
Figures 7A to 7~ represent a variation in 16 the governing device of the plugs, relative to the 17 governing device described relative to Figures 3A to 18 3D. In Figure 7A, plugs F(2,1) and F'(2,2) both are l9 in the "0" state. In Figures 7B, plug F'(2,2) has been made to rotate by one quarter of a rotation in 21 the direction of arrow P'2 which is the reverse of the 22 direction of arrow P2 in Figure 3B. It can be seen 23 that arrow F'(2,2) establishes an electric circuit 24 between V2.1 and Hl.2, through surEace 3'. Plug F'(2,2) has changed to state "l". In Figure 3C, plug 26 F(2,1) is made to rotate in the direction of arrow 27 P'3, the reverse direction -from arrow P3. Figure 3C, 2~ that causing plug F(2,1) to change to state "l", etc.
29 In that way, there are obtained different switchings by causing the plugs to rotate in one direction or in 31 the other, this offering a remarkable flexibility of 32 use.
33 Figures 8a to 8c represent a switching 34 member 45 introduced in a groove 46 of a cover 47 to switch by rotation one of the plugs of the associated 36 pile, that is, for example, plug G(2,2). Figure 8a is 37 a section view 17.
along line VIIIa- VIIIa in Figure 8c; Figure 8b is a section view along line VIIIb-VIIIb in Figure 8a~ and Figure 8c is a vertical section view along line VIIIc-VIIIc in Figure 8b Plug G(2~2) comprises a cylindrical body 48, similar to body 6, fitted with a head ~9 which is different from head 5, the entire complex ~8 and 49 being made of insulating plastic material. Body 48 is fitted with small contact blades 50, in a n~ber equal to the number of layers Or the switch.
Those small blades 50 have a shape which is approximately that of an S
and they work, as will be seen below, in the manner already described relative to Figures 3A to 3D.
Head 49 of plug G~2,2), Figure 10, comprises a lower part 51 in the shape of a ca~n, and a higher part 52 in the form of a crank which presents at its end a vertical cut out 53 Cam 51 is limited by the arc of a circle 54 the an~le at the center of ~Jhich is close to 2~0, and of larger diameter, and (by) an arc of a circle 55 the angle at the center of which is close to 120 and of smaller diameter, arcs 54 and 55 being joined by straight (ri$ht ?) segments 56 and 57 which are lined up. Crank 52 is solidary of cam 51, and it has at its top a cone-shaped projection 58. Arcs 54, 55, body 48 and projection 58 have the same axis of revolution, axis 59.
Grooves 46 of cover 47 a~æ defined by vertical partitions which are either perforated or continuous, partitions 60, which are solidary of the upper plate of the cover and the lo~er free ed~es of which each have a series of lug pieces B(n,p), in ~ich n and p correspond to the indeces of the plug ~ith ~hich the lug~is associated. The whole complex of lug pieces B(n,p) therefore presents a quincuncial shape as does that the the whole cor?lex of plugs. The horizontal section of a lug piece B(n,p) , ,,jl. ` ~
~'7 presents a six-sided polyeonal shape one long side 61 of which is parallel to the direction of partitions 60, two equal sides 62 and 63 which are adjacent and perpendicular to 61~ two oblique sides 6~ and 65 respectively adjacent to 62 and to 63, and a small side b6 which joins the ends cf b~ and of 65 and which is parallel to 60a The distance between the sides 61 and 66 is greater than the thickness of partition 60~ and the diference in length is distributed on each side of said partition.
The angles of sides 64 and 65 are such that, when head 49 is made to rotate in one direction, segment 56 comes to hit (apply as a lug piece) against side 6~, and tnat, when head ~9 is made to rotate in the other direction~
the segment comes to hit (apply as a lug piece) against side 65~ In addition, the section of lug piece Btn,p) comprises an axis of symmetry which is perpendicular to 60 and ~lich runs through axis 59 of plug G(n,p).
Switchin~ member 45 is composed of a U-shaped profile 67 the U of which is ~ownward turned and the width of wnich is equal to that of a groove 46 The end 68 of the profile is be~elled to render easier the introduction o~ the member into a groove. In profile 67, there is lodged a slide 69 the body 70 of which occupies the free space inside the U and which ends with a flexible rod or stem 71 the section of which is definitely smaller, and which occupies, in the state of rest, an upper part of the volume defined by the UD As shown in Figures 9a to 9c, rod or stem 71 has an approximately square section; it prese.~s, moving upward and seen from the top, a first elbow 72 to the right, then a straight part 73 and, finally, a second elbow 7~ sy~etrical with the first one. On straight part 73, toward the outside, there is fixed a stud 7~ which is engaged in a groove 76 o~ the corresponding lateral wall of profile 67. Under the straight 3~
19.
part 73 there is set a relatively long and flexible finger 77, Groove 76 presents the shape of an arc of circle the concave side of ~hich is upward turnedD
The length of finger 77 and the level cf the high points of groove 76 are such that it is possible, when stud 75 is in one of the high points of 76, to move member 45 in a groove ~6, without modifying the positions of the plug heads which are located under the end of finger 77. The low level (the level of the bottom) of the arc of groove 76 is such that, when slide 69 is moved relative to profile 67, the end of finger 77 moves downward enou3h to engage ln the vertical notch or cut-out 53 of a crank 52.
Figure 9a scne~atically shows the slide 69 beyond plu3 head G(2,2).
Fi,ure 9b shows the intermediary position of slide 69 during the s~itching, in the direction of arrow F4 (P4 ?~, of the head. Finger 77 has moved downward, it has engaged in cut-out 53 and therefore has caused the head to rotate by ~. In that position, rod or stem 71 is subjected to a torsion ~hich can be seen in Figure 8c, which represents that state. Figure 9c shows the final position of the switching, in which stud 75 has gone up at the other end of groove 76. Fin3er 77 again is completely above the heads, this making possible the ~ithdrawal of switching member 45~
In order to perform the switching in the opposite or reverse d rection o~ arrow F~ there would~ta~en, as initial position, that represented in Figure 5c and~ as final position, that represented in Fi~ure 9a, the intermedia~y position still bein3 that in Fi~ure 9b~
rigure 8a shows how the movements of the cranks and of the cams of the plu3 heads are limited by lug pieces B(n,p), each allowed rotation being over 90 in one direction or in the other, that corresponding to the :
20.
f`unctioning in Figu~es 3a to 3d. It will be noted that in the course o~
the rotation of G(2~2)J its crank 52 passes above parts 51 of the neigh-boring heads (G'(3,2) and G'(3,3). In practice, the level of the lower plane of crank 52 can be slightly abo~e the level of the upper plane of part 51. Thus, in the course of the rotation, there is no contact between the elements of the nei~hborin7 heads. Crank 52 has as its object to lengthen the lever arm on which fin~er 77 acts, that is to say to lessen the effort supplied by said fin7er.
Fi~ure 8b shows slide 69 in dash-dot lines, in the position represented in ~i~ure 9a, and in fin~ ;ine in the position represented in Figure 9b and in heavy line in the position represented in Fi~ure gc, the numerical references of the elements of the slide being in~icated only for the fine line drawin7. The plane view in Figure 8b especially shows the di~ferent positions 77a, 77b and 77c of finJer 77 at different stages of the switchingO
their It will also be noted~ in Fi7ure 8a~ that in ~ rest position, the plug heads have two bearing surfaces, one by an ed~e of cam 51, the other by an edge of cranX 52, on two lug pieces B(n,p). In one variation of execution~ one row out OL t~-o of lug pieces B(n,p) is eliminated, in that case we have two shifted rows of plug heads. At rest, ~or one row of plug heads3 the bearing sur~ace is located between one edge of crank and one lug piece and, for the other row, between a cam ed~e and a lug piece. It is then possible to use a switchin~ member the ~dth of which is appro~imately double that of ~ember 45, and ~hich contains two slides respectively allocated to the one and to the other row of plug heads.
Fi~ures 9a to 9c also show an example of execution Or a contact 50 which~
01 instead of having the already described L shape, 02 presents the shape of an S. The upper part of the S
03 can come in contact with the conductor of the layer 04 located at the lowest level and which is perpendicular 05 to the first layer. The intermediary part between the 06 zones of contact properly speaking of the S, is 07 radially fitted into the body of -the plug.
Claims (36)
1. A switch with several layers of crossing points which is composed of several layers of parallel wires oriented in a first direction, and of several second layers of wires, oriented in a direction perpendicular to the first layers, the first and second layers being piled up in an intercalated manner, each layer of wires being supported by a frame of insulating material, a crossing point being constituted by two wires located in two neighboring layers, and a conductor surface of a plug, the height of the conductor surface being sufficient electrically to connect a segment of wire of the upper layer to a segment of the perpendicular wire of the lower layer, each first layer being constituted by a plurality of row wires of uneven ranks and a plurality of row wires of even ranks each second layer being constituted by a plurality of column wires of uneven ranks and by a plurality of column wires of even ranks, the row wires and the column wires of uneven ranks forming a first matrix, and the row wires and column wires of even ranks forming a second matrix, first crossing points being formed by the row and column wires of the first matrix, by conductor surfaces of first plugs which are wedged between said row and column wires of the first matrix and the row and column wires of the second matrix; second crossing points being constituted by the row and column wires of the second matrix and by conductor surfaces of second plugs which are wedged between said row and column wires of the second matrix and the row and column wires of upper ranks of the first matrix, the first and the second plugs having a largest diameter on the side of the meshes of the wire layers, each conductor surface of a plug comprising a first and a second contact surface galvanically connected together, the angular positions of the first and second contact surfaces being shifted by 90° and their axial distances being equal to those of two adjacent layers.
2. A switch according to claim 1, in which the conductor surfaces present the shape of an L the base of which corresponds to a 90° arc, and the height of the L corresponding to the distance between the layers of one direction and the layers of the other direction.
3. A switch according to claim 1, in which the first plugs have their heads at the top of the switch and the second plugs have their heads at the bottom of the pile.
4. A switch according to one of claim 1, 2 or 3, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material.
5. A switch according to one of claim 1, 2 or 3, in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame.
6. A switch according to one of claim 1, 2 or 3, in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
7. A switch according to claim 1, in which the conductor surfaces present the shape of an L the base of which corresponds to a 90° arc, and the height of the L corresponding to the distance between the layers of one direction and the layers of the other direction, and in which the first plugs have their heads at the top of the switch and the second plugs have their heads at the bottom of the pile.
8. A switch according to claim 7, in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame.
9. A switch according to claim 7, in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
10. A switch according to claim 7, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material.
11. A switch according to claim 7, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, and in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame.
12. A switch according to claim 7, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, and in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame.
13. A switch according to one of claims l, 2 or 3, in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame, and in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
14. A switch according to claim 7, in which each frame has first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame, and in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
15. A switch according to one of claims 1, 2 or 3, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, and in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
16. A switch according to claim 7, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, and in which the edges of the frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
17. A switch according to one of claims 1, 2 or 3, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, each frame having first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame, and in which the edges of frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
18. A switch according to claim 7, in which each layer of wires is placed, without any blocking, into grooves provided for in the opposite sides of a frame made of plastic material, each frame having first grooves on two opposite sides which support the conductors, and second grooves under the other two opposite sides, the pile-up being constituted by frames alternately shifted by 90°, the second grooves of an upper frame being placed on the conductors placed in the first slits of the lower adjacent frame, and in which the edges of frames alternately present, between two conductors or wires, either a straight part or a hollowed-out part or a projecting part presenting the shape of a half circle, the diameter of which is practically equal to that of the plugs.
19. A switch according to claim 1, in which each plug head is composed of a lower part presenting the form of a cam with two arcs of a circle of different diameter, joined by segments and over which there is a higher part shaped like a crank, which presents at its end a vertical cut out or notch, said notch being a gear surface for a vertical flexible finger carried by a governing rod of a switching member, the guiding module of the switching member having on it lug pieces against which one or the other of the segments of the cams, and/or one or the other side (or sides) of the cranks hit.
20. A switch according to claim 19, in which the heads of all of the plugs are arranged on a same side of the pile-up of crossing points.
21. A switch according to claim 19, in which the length of the cranks is greater than the side of the squares formed by the layers of wires, the larger diameter of the cams being slightly inferior to said side of the squares.
22. A switch according to one of claims 19, 20 or 21, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of the crank.
23. A switch according to one of claims 19, 20 or 21, in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods.
24. A switch according to one of claims 19, 20 or 21, in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
25. A switch according to claim 19, in which the heads of all of the plugs are arranged on a same side of the pile-up of crossing points, and in which the length of the cranks is greater than the side of the squares formed by the layers of wires, the larger diameter of the cams being slightly inferior to said side of the squares.
26. A switch according to claim 25, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of the crank.
27. A switch according to claim 25, in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods.
28. A switch according to claim 25, in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
29. A switch according to one of claims 19, 20 or 21, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, and in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods.
30. A switch according to claim 25, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, and in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods.
31. A switch according to claim 19, 20 or 21, in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
32. A switch according to claim 25, in which one row of lug pieces out of two is eliminated, and the switching member comprises two parallel governing rods, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
33. A switch according to one of claims 19, 20 or 21, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
34. A switch according to claim 25, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
35. A switch according to one of claims 19, 20 or 21, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at each switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, one row of lug pieces out of two being eliminated, the switching member comprising two parallel governing rods, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
36. A switch according to claim 25, in which the active end of each governing rod is flexible and has, at the point of suspension of the vertical flexible finger a stud which is engaged in a groove dug in a vertical wall of the switching member, the groove having an upward concave curvature, a rod being connected to means for displacement in translation which causes a stud to run over the groove, in one direction or in the other, at switching, the high points of the groove being at a level such that the low end of the finger will be above the cranks while the low zone of the groove is at a level such that said low end of the finger will engage notch of a crank, one row of lug pieces out of two being eliminated, the switching member comprising two parallel governing rods, and in which the conductor surfaces of the contacts of the plugs present the shape of an S, one conductor surface being constituted by the upper part of the S and the other conductor surface by the lower part of the S, the intermediary part of the S being fitted into the body of the plug.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8008935A FR2480495A2 (en) | 1980-04-15 | 1980-04-15 | SWITCH HAS MULTIPLE LAYERS OF CROSS POINTS |
| FR8008935 | 1980-04-15 | ||
| FR8027561 | 1980-12-18 | ||
| FR8027561A FR2496975A2 (en) | 1980-12-18 | 1980-12-18 | Multilayer crosspoint matrix switch with co=ordinate selection - has pin contact points in state-independent equilibrium positions within two matrices formed by columns and rows of wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1179434A true CA1179434A (en) | 1984-12-11 |
Family
ID=26221729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000374939A Expired CA1179434A (en) | 1980-04-15 | 1981-04-08 | Switch with several layers of cross points |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0038256B1 (en) |
| CA (1) | CA1179434A (en) |
| DE (1) | DE3169640D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544004A (en) * | 1993-10-14 | 1996-08-06 | Nippon Telegraph And Telephone Corporation | Pin-board matrix switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1457726A (en) * | 1964-10-02 | 1966-01-24 | Interconnection matrix | |
| CA1159977A (en) * | 1979-08-16 | 1984-01-03 | Andre Frances | Commutator with several layers of crossing points |
-
1981
- 1981-04-08 CA CA000374939A patent/CA1179434A/en not_active Expired
- 1981-04-09 DE DE8181400568T patent/DE3169640D1/en not_active Expired
- 1981-04-09 EP EP81400568A patent/EP0038256B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0038256A1 (en) | 1981-10-21 |
| DE3169640D1 (en) | 1985-05-09 |
| EP0038256B1 (en) | 1985-04-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |