DE7424987U - Telescopic antenna with spherical locking joint - Google Patents

Description

RICHARD HIRSGHMAM ', ■' ·, '■'""",' ^: ·

Radiotechnisohes Werk ,, ',. ■''Sssli ^ er ^ aen IfJ, 7.1 ^ 74 Ilr. at. TPA / Dr.Fz / J '\

I9

Ottilienstrasse I9

Sebrauohsinusterregistration

. ". Telescopic antenna with spherical locking joint" Telescopic antennas according to the generic term of the Sohutz claim 1 have been known for a long time in the literature and in practice. For example, in German utility model specification 1 699, a telescopic antenna with a locking joint is described which can be held in place in a plane in various angular positions relative to the mounting surface Adjustability without the use of tools and with a holding force that can be determined by the structural design. However, this adjustability is only possible in one plane with all itast joints of the known telescopic antennas. This disadvantage, which weighs particularly difficult when installing on motor vehicles, because the different types of vehicles have different angles of inclination of the body panel at the electrically favorable mounting points, is articulated when using balls, such as sin for telescopic antennas, z.3. au3 from the German Gm-scripts 1 357 068 and 1 927 664 are known, since these can be pivoted in all directions. On the other hand, ball joints have the serious disadvantage that they have to be clamped in a certain position in order to be fixed Its angular position to the mounting surface "If the clamp is tightened strongly to avoid this undesirable property, it can only be adjusted by hand with the use of force, which inevitably means heavy wear on the joint, or only with the help of tools, which is laborious and expensive is. If, however, one succeeds in optimally adjusting such a ball joint, it will nevertheless become so immobile due to dirt and corrosion in the course of time that the last-mentioned disadvantages cannot be avoided.

The Nouoruiir '·; is the task to be ridden, und · ... ■ !: V ^ rmeidun ^ · ά <> ι · named Naclri oilo in the simplest and most cost-saving way possible Way a robust, au el ·, with constant strong ür och Ut "berm ;;. ··: cm Permanently functionally reliable telescopic antenna according to learn the generic term

-JO-

of the protection claim 1 to create.

According to the innovation, this task is carried out by di ^ im kennaeichr. :,.at Part of this claim specified structural measures solves ge.

It is thus achieved in a simple and elegant way that the advantages of both are achieved according to the respective requirement Constructions - the locking mechanism as well as the ball joint «come into play».

Advantageous embodiments of the object of Schutzan spriachs 1 are the sub-claims refer _e For example, an embodiment according to claim 4 particularly expedient vzi.l in it are due to the all-round Rastbarkeit no longer necessary directions Klemmein ~ »

Figures 1 and 2 or «4 and 5 show two exemplary embodiments of the renewal according to the swivel joint for telescopic antennas in part sectional views,

In Fig. 3 is a variant of the embodiment according to the Fig «1 and 2 shown.

An embodiment according to FIG. 1 is useful in cases in although a ball joint is favorable during assembly for one-time adjustment to differently inclined body parts, after that however, for the user of the antenna an adjustment with detent is only required in one plane »

The spherical swivel joint 1, which carries the telescope 2, can be clamped with the screw 3 and the nut 4 between the jaws 5 of the foot piece 6 and in the plane of the screw axis the angle (X pivotable «

The axis of the screw 3 is also the axis of rotation of the Rastver position with which the Nei. ^r tion of the telescope in 3o - steps

is adjustable by a total of 18o. There are also q.uer for the direction of adjustment in the surface of the swivel joint 1 in each case

3o ° offset notches 7 attached. Engages in one of them under pressure, the saddle-shaped elevation 8 of the band spring 9 serving as a locking element, which with an angled end Io is fixed in a recess Ii of the base 6.

The holding force of the detent depends on the bias of the Rastelenentofj 9 and the configurations of the elevation 8 and the Notch 7 al,

In clor variant after Fi £. 3, the band spring 9 is provided by a helical spring inserted in one embodiment: i:; iunr 12 of the base 6 ;;: · ■■! : '- i>.) rjr-.ttelfb'rmige elevation 8 replaced by a cap 14,

which has the same concave curvature in longitudinal section as that in the saddle-shaped elevation 8 is shown in FIG. Legs 15 rubbing off from the cap 14 are in the screwdriver. feather 13 plugged in,

The embodiment according to FIGS. 4 and 5 is suitable for all conceivable practical cases because of the all-round pivotability. Here the spherical swivel joint 16 is not clamped on the telescope 17, but _{held movably between the jaws 18 of a bracket 19 f} which is fastened with a screw 2o in the foot piece 21. The clamping screw 22 is used to set a desired frictional resistance during the rotary movement «)

The inclination of the telescope 17 is corresponding to the number of trough-shaped depressions 23 in corresponding locking steps (here e.g. 22.5) adjustable by hand in all directions within certain limit angles. For this purpose, a ball 24 is through a Compression spring 26 inserted into a recess 25 of the foot piece 21 is pressed into the depressions 23. The pressure of the spring 26 can adjustable by a screwed into the recess 25 disk be.

In both exemplary embodiments, the holding force of the detent is such that the telescope 2 can just be easily adjusted by hand, but is not adjusted by driving vibrations »

Claims (2)

Sohutganaprüoha It telescopic antenna, preferably for mounting on motor vehicles, with a foot piece and a swivel joint for aligning the telescope in different angular positions on the foot piece or where to the mounting surface, characterized in that the Swivel joint & ball-shaped and for certain angles of inclination of the telescope (^ i? jrastable is formed » 2. Telescopic antenna according to claim 1, characterized in that ± n the surface of the spherical swivel joint (l; 16) recesses (7, 2> 2) are attached, in which a locking element maintained in the foot piece (9 »1J / 14» - 2 «4/2/5") can be locked under pressure _e 3 «telescopic antenna according to claim 2, characterized in that the recesses (7) are made as elongated notches along a main circle and q> they run on this » 4. Telescopic antenna according to claim 2, characterized in that the recesses (2 ^) are trough-shaped and are evenly distributed over the hemispherical surface facing the locking element (24/26) _e Telescopic antenna according to claim 3, characterized in that the latching element (9) is designed as a ribbon spring which, with the one angled end (lo), is inserted into a recess (ll) in the foot piece (6) and with a saddle-shaped elevation ( 8) engages resiliently in the notches (7) of the spherical swivel joint (l) ₉ 6β telescopic antenna! "According to claim 2, characterized in that the locking element (lj / l4, Μ / 2 $) as in a % L · Foot piece ^ ÄlJ introduced compression spring (j $, Ü6j with a holding part (Hf, 2 * Ψ) resting on the free end, which engages in the recesses (7, ZJ) of the spherical swivel joint (1 / 26J » 7, telescopic antenna according to claim 6, characterized in that the holding part is a ball (2Λ / ·), 8 ₀ telescopic antenna according to claim 6, characterized in that the holding part is designed as the free end & pr cap (lty) with fastening tongues {45 ) which are inserted into the compression spring (15).