DE1958109C - Twistable parallel wire line - Google Patents

Description

The invention is based on a rotatable Paralleldr.htleitung with two or more, π parallel at a distance from the arranged ladders. .

In high-frequency technology often w the etc. for Spe.sung of antennas. Koax.alkabeln addition, so-called symmetrical parallel wire lines ver-.e ^g friend. whose conductors are kept at a constant parallel distance from one another in order to maintain a predetermined wave resistance. Up to now, the conductors have either consisted of strands or ropes, which are composed of several individual wires, or, in the case of rigid installations, of wires in connection with rotatable shortwave antennas, in which the actual antenna element is to be rotated 360 ^ or more with respect to a stationary support part. For such purposes, the previously common parallel wire lines are not usable as antenna feed lines, since they are exposed to large bending and torsional stresses even at very small pivot angles and fatigue fractures occur even with a small number of alternating left and right turns. The greater the diameter of the individual conductors, the greater the risk. Also with special ropes. which avoid twisting in or against the direction of lay of the Eio-IdChj, this prob.em gen in d ^ JJ ^

hen the P ^{a al} ' ^t .' ^dr ^ f ^c _{also the} Längenän ^ can ^ h dje ^^ llroh _ ^ ^^ ^ ^

V Hrehen occur By Langsschhtze ■ - ,. ■: Vcrdrehen ^a J ^{tr "ltn} _{e dcm that the Insi} chverdrei" corrugated pipes can ^auLera Torsionsbeanspnichur:

^{ζϋ "ιζΙιοΗ"} ^^ _{Γ ϊ η} f _"t he practice it has h, r ⁶ also iei extremely frequent Be, · ^you or and. -.

ⁿ S ^{s to} ^ i _{do Ausgesta} gen of erf :: -

^ ^CITC ^ "° p" _a ii _c | wireline result: "s according to the parallel delivery _B

the "" ^ P ^^ _{in the focussing on} hand sclu-DeE findungJ ^ d> mg ^^

malischer /.uciinungtn

F. g.l ze g «A ^

dimensions ^parallel r f ^h ''''""
that of two ^

Figures 2-4 show
their support.

F. gl ^Z ^ ^l / L ⁿ ^
and 2 existing ones
mansch indicated
4 lk

an inventions _verb , ._

Divide. Head ur.J

parallel ladders

f -

mansch g.

rate 3 and 4 electric

the device 4 can

tenne act, d> e against

rotatable in a horizontal plane s

introduced support 7 includes which on the opposite of the slot 6 inside of the corrugated pipe 5, for example by a welded or Luiver connection 8. is attached. The outer end is ir. An insulator 9 attached, which in turn on a Ring 10 made of metal or an insulating material is attached and so the two supports? the opposite Holds corrugated pipes 5 at a constant distance.

If a relatively thick support compared to the width of the slot 6? should be used, it has proved to be advantageous to widen the slot in the area of this support 7, like this, n 1-. G. 2 is indicated by the broadening Il

In the example shown there are only two opposite conductors shown can "also three-, four- or secnsnrah leituneen can be built in this way. A leThem Potenual lying head of such MdirdrahUeituneen can also be made directly through metallic crossbones over the supports? mite.nandcr be connected.

1 sheet of drawings

Claims (4)

1 Twistable parallel wire line mn two or more parallel and spaced apart arranged ladders, characterized that the head (1. 2) i ,. Corrugated tubes (5) are slotted in the longitudinal direction. 2Γ parallel wire line according to claim 1. characterized «Indicates that the conductors (1. 2) are held by, 0 supports (7), which are held by the slot (6) are guided into the corrugated pipe interior and fastened there. 3. Parallel wire line according to claim 2, characterized in this way. that at the point of entry » _{5 of} the support (7) into the inside of the corrugated pipe the slot (6) is broadened (broadening UV 4. Panel wire line according to claim 2 or?. characterized in that the supports (7) by means of insulators (9) on one of the conductors benden ring (10) are attached. The outer conductor should be designed as a corrugated tube, so that Kabef η g -ssen limits bendable and also SSK Sehnbar or --n-npr ^ ar "j (German ^usage " ^S £ n" ^e 'closed corrugated pipes pre-cut at the υ ⁿ ° -ζ _lane axis twisted but cannot be turned around will. ·.,. _{also known sc} hon, at emem k-_ts is. aπ ^ _{wj in the} outer conductor from ax.alkabel ein Lang: s ^ _{SQ that a sol} . Correct dimensions ™ ξ ^η high-frequency line ver ^ches / ^abe ! jr / ^ n (German utility model £ _{t also} already a coaxial cable; ^ tubular interior unJ known. ne> u printed part from one Outer conductor η * .η. ^ΑΓ "" - _{t so there on the} outside. single Υ * ⁵ ν £ ^% _15Κηι . the büdenden by the after \ ™ ". ^{a Lang} _n ^SC S _be renzt vvird the inside u, v inner g '° g ^ENCN j ^ei" "fallopian tube half saddle Mute bar in the;? the' nnenM Patent 763 6 51. , hurry ^over f ^e ^ ⁿ _h ^ _{d it is} not about waves-η both cases are _n ^ ^^^ ^. -hutze this known Koxialkabel are provided to s _e m purpose other than Langsschhtze l, ·; the corrugated pipes according to the invention. Through the corrugated pipes in an inventive Parallel wire lines are subject to bending stress :::