DE1065057B - Cabling of a plurality of surface-side parallel mounting plates for electrical items - Google Patents

Description

GERMAN

The main patent 1 027 278 relates to the arrangement of a plurality of mounting plates in FIG a housing or frame for receiving electrical items, in which the individual mounting plates are suspended that they are out of their operating position in which they are parallel and close to each other on the surface are arranged, are pivotable into a second, similar and perpendicular to the first position. Included the electrical equipment must have a connection to the fixed rack cable or to others have swiveling facilities.

Arrangements are known in which the frame cable is firmly connected at one end to the frame and is guided at the other end through the hollow axis of rotation to the pivotable device, where the individual conductors are firmly connected to the terminals. Furthermore, an arrangement is known in which the frame cable is cranked in a U-shape, one leg end of the cable being attached to the frame and the other leg end to the pivotable device close to and parallel to the axis of rotation leads and is in turn attached to the terminals of the device with its individual conductors. The cable hangs freely between the spaced-apart attachment points and is activated during the pivoting movement in the first case twisted, in the second case it suffers torsion and bending. Both types of Cable guide protrudes the cable under the pivoting devices down, so that more Space is required than is needed for the pivoting devices alone. These well-known Cable guides are not applicable to arrangements as described in the main patent. There several mounting plates are swiveled around the same axis. Thereby are necessarily the connection terminals of the cable are sometimes far away from the pivot axis. A cable guide using the methods described above would result in a considerable increase in the size of the case as well result in excessive movement of the ladder. Are the swiveling mounting plates suspended individually and if a partial strand of the frame cable leads to each of them, there is an additional risk of entanglement of the individual cable strands. In both cases the conductors and especially the ones connected to the terminals too much stress on soldered conductor ends.

The invention relates to the cabling of a plurality of mounting plates according to the main patent, and it avoids these disadvantages in that, according to the invention, each mounting plate on its pivot axis The nearby end face has a wire holding device on which the individual lead wires are held loosely in such a way that both the lead wires of the rack cable and those Cabling of a plurality on the surface side

lying parallel to each other
Mounting plates for individual electrical parts

Addendum to patent 1,027,278

Applicant:
International

Standard Electric Corporation,
New York, NY (V. St. A.)

Representative: Dipl.-Ing. H. Ciaessen, patent attorney,
Stuttgart-Zuffenhausen, Hellmuth-Hirth-Str. 42

Claimed priority:
Great Britain 14 July 1953

Percy A. Childs and Maurice C. Branch, London,
have been named as inventors

of the individual parts with one another on the wire holding device located next to the pivot axis and are held on the one that is assigned to the mounting plate of the individual parts to be connected.

The advantage of the invention is that the bending force is reduced by the loose mounting of the lead wires can attack on a relatively large length of wire and that thereby the risk of a Wire breakage is reduced to a minimum.

The figure shows a section from the rear of the arrangement described in the main patent. There are shown three mounting plates I ₁ 2, 3 rotatable about common pivot pins 4. A wire holding device 6, 7, 8 consisting of a strip of insulating material is attached to the end face of each mounting plate. The strips of insulating material have holes arranged in pairs through which the conductors for connecting terminals and frame cables are looped. The conductor 12 leads from the frame cable 11 to the terminal 21 of the mounting plate 1 and is looped through the holes 24 and 25 of the wire holding device 6. A second conductor 13 leads from the frame cable 11 through

909 627/316

Claims (3)

Holes 26 and 27 in strip 6 and through holes 28 and 29 in strip 7 to terminal 22 of mounting plate 2. A third conductor 14 leads from rack cable 11 through holes 30 and 31 in strip 6 and through holes 32 and 33 in the strip 8 to terminal 23 of mounting plate 3. A fourth conductor 15 leads from terminal 34 of mounting plate 1 through holes 36 and 37 in strip 6 and holes 38 and 39 in strip 7 to terminal 35 of mounting plate 2. A fifth conductor 16 leads from the terminal 40 of the mounting plate 1 through holes 44 and 45 in the strip 6 and through holes 46 and 47 in the strip 8 to the terminal 41 of the mounting plate 3. A sixth conductor leads from the terminal 42 on the mounting plate 2 through holes 48 and 49 in the strip 7, holes 50 and 51 in strip 6 and holes 52 and 53 in strip 8 to terminal 43 on mounting plate 3. Since all of the conductors emanating from frame cable 11 are attached to the wire holding device (strip 6) of the assembly closest to the common axis of rotation eplatte are intercepted, the movement of ladders as a result of the pivoting of all or part of the mounting plates is reduced to the smallest possible extent. Since the conductors also connect the terminals of the mounting plates 2 and 3, are guided over the wire holding device 6 located near the pivot axis, a long, sagging loop of connecting conductors is avoided, as is the case with a direct connection of the terminals because of the large relative movement between the rear sides the mounting plates 2 and 3 would only be necessary when pivoting one plate. Because the conductors are each passed through two holes in the strip, they are held securely on the strip, so that no harmful pull can be carried out on the soldered connections on the terminals. Patent claims: 1. Cabling of a plurality of mounting plates lying parallel to one another on the surface side for electrical items that are rotatable about a common pivot axis that always the Mounting plates that are further away from the swivel axis are swiveled out first, according to patent 1 027 278, characterized in that each mounting plate (1, 2, 3) on its Pivot axis (4) near the end face has a wire holding device (6, 7 ', 8) on which the individual lead wires (12 to 17) are held loosely in such a way that both the lead wires (12, 13, 14) of the frame cable as well as those (15, 16, 17) of the individual parts with one another on the wire holding device (6) located next to the pivot axis (4) and on that one (7, 8), which is assigned to the mounting plate of the individual parts to be connected, held are. 2. Cabling according to claim 1, characterized in that the frame cable (11) along the Pivot axis (4) and runs closely adjacent to her. 3. Cabling according to claim 1 and 2, characterized in that the wire holding device (6, 7, 8) consists of pairs of holes having strips of insulating material through which, if necessary, the Lead wires are looped through. Considered publications:
U.S. Patent No. 2,253,700. 1 sheet of drawings © 909 627/316 9.59