DE1941463U - EXTENDABLE MAST. - Google Patents

Description

Usage registration

Diplc "Ing _o Alexander Hahn" 6241 Sohnei Waidhohletraße 1

Retractable ¥ .az ~~.

A jack has already been proposed, the special cortex of which lies in the fact that the support arm of the jack, which is inserted into an eyelet of a Xraftfaarsiru & ss, is attached to a carriage * which slides on the elßsr ¥ ¥ ierfeßnt ™ Stü.tS3 and grips it ε where si, jh . -aur eiixsr surface represents square = pillar 8i, ae fell off, a.ie at both ends Laiafsapfen with g-sgeaübsr the role of larger diameter == has _{f you} see, aiii in B ^ ekan of the slide in aeai split angle s- ur ¥ iei »kant ~ stütse arranged et'A Lauif laugh from ti tut κ en ₉ whereby this Üolle can be rotated by a handle ^ The slide has on both sides. surface opening? _{s of} those, the square statae facing away fiäade'r carry the running surfaces. In addition, the sledge has on the sloping surface of the support opposite - it is on its upper and lower seed * runjralisten _? welnhe prevent tilting of the slide = Most. "Olle this case has a tail to which the hand drive, for example © ine Handkurbelg angreifte Inside the carriage is a spring arranged _a holding role in ihrer.oberen position" but no particular pressure of the Roll created on its tread · =

The jack support is naturally still during operation »since everything is firmly supported on the ground» while the carriage loaded with the motor vehicle is moved up and down »These jacks have proven themselves perfectly in many trials and in an official test

The task of the invention is to correct this

a new field of application to tap ^ merely by the relative movement reversed we j, the carriage being mounted fixed and the support moved up and down wircU In this way, this device sum extension suitable location independent poles _$ said carriage by 180 ° on a tripod or a similar frame is stored and the support, which is divided into individual sections, can be moved up and down by turning the should ο the mast consists of individual sections? which are shorter than the height of the tripod carrying the carriage and which are coupled together practically seamlessly one after the other by suitable couplings j as soon as the end of the previous section is close under the carriage holder o When the mast has reached the desired height, it becomes untex - the letste Teiletüek hitched a © support alarm panel and then the mast something _s zurückgekurbelt until the support Platt © firmly on the ground set up Optionally, the Holle by suitable _©? ., each W & ohsi & nn common funds will be secured in any position _r "The support can have different cross-section * ISTJ While erschnitt with a jack, a rectangular Jn cheaper, is in here a long Käst a round cross-section cheaper J) ementspreei -.. end receives the

To Ή2-2629 Dr ₀ H ₀ Bo from 6 ₀ 4.

Rolling roller has an oppositely curved shape corresponding to this round cross-section

In jacks was predicted that the diameter of the drive pin to be greater * ala the diameter of the rolling roller j wherein the torque reference was made to the Game ₀ When Aufwärtsbe- S of the carriage movement under a heavy load, such a larger diameter Laufaapfen mutatis = fully j because when the Abwälsroll® is turned counterclockwise, the slide body is lifted from the trunnions * The larger its diameter _s mn, the greater the torque ο On the other hand, the force ratio _{f is} also memo. the journals have the same or even smaller diameter than the Abwälsroll®, still completely sufficient to lift the loads that are here and there, because essentially the lever arm on which the force acts _? cUho so the length of the hand crank is decisive »With a car jack, the carriage usually only needs a distance of 10 to 20 cm surüoksnilegen, ³ Q that the speed is not a big deal ο Ψβϊμ but * wi® in the present Pail when extending masts, for example 25 to 30 m an equal rotation · = number employed would _f so the extension would take excessively long period ₀ Off diesera reason it is gweckmäßigj, einsuschalten an appropriate ratio between crank and rolling roller _o

In the drawing is an exemplary embodiment of the

Invention dai ^a asked

Figo 1 shows schematically an antenna mast in

half extended position _f

To H 2-2629 Dr ₀ H ₀ B from 6 _O 4 »1

Figo 2 shows on an enlarged scale the carriage with its holder and the attachment of a Rohrabsohßittes _o

The carriage 2 with the rolling roller, which is designed in exactly the same way as a jack, is firmly mounted on a storage block 2d. This storage block has three eyes 2i% to which the three feet 2a, 2fe _P 2c are hinged, and tucks have support plates at their lower ends with thorns o The mast itself consists of the individual Rohrabach _{sections 1 8} 1b etc. to ISo The lowest pipe section 1 carries a Etütisplatte la with a generally gripping the earth Bora- On the uppermost pipe section 1z is in the embodiment shown = example, an antenna 17 is attached of course, this tower can serve various purposes "-aasteile the .Antenne 17 can a _e B _e j signal lamps spotlight? i'ertiaiagerij, automatic cameras or a basket for people to be attached - on the storage clot 2d - is a bracket 2 @ attached _? the Lagerbaekea for a gear 15 wear _? on whose axis the hand crank 13? 14 sitate Over the roller 9 ″ creamed on the head and the toothed wheel 15 runs a chain i'5a _c Instead of the hand crank 13-14, a pedal bearing like a bicycle _{can also be provided, f} with an additional seat on the bearing block 2d Depending on the number of the individual pipe sections, which in practice have a length of about 3 mm, a socket has been hooked into the pipe wall and three support feet 2a, 21) _{p anchored in the ground by means of pegs} 2c aind "so dimensioned that the height of the camp clot 2d above ground is greater _? than the length of a pipe section

For H2-2629 Dr.fi. B of April 6, 1966

After setting up the tripod, a pipe section =>. According to Fig. 2, section 1b - pushed from below through the storage blocks 2d into the carriage ο Then the roller 9 is rotated clockwise via the drive = and see in the same way as with a jack the pipe 1b pushes upwards ₀ As soon as its bottom end only protrudes from the bearing block 2d, the next pipe section - according to FIG Since the two pipe sections have exactly the same diameter _? their outer surfaces practically seamlessly merge into one another ₀ Hunmore the plugged in © tube 1 can be cranked up using the roller 9 ο the support plate 1a is then set under the last pipe section and the mast is cranked back so far ρ Isis the support plate firmly "on the ground on sit st ο the coupling of the tubes can even "= naturally in many other species take place ,. the skilled person for this are various possible = keiien open" only essential _s is that the tubes pass seamlessly into one another _"? and that both Zugals pressure forces v taken up by the clutch / ground könnenc the rest corresponds to the function entirely of the apparatus as b @ i a jack "of the sub-= difference is necessary only _for the fact that determines here the turned through 180 ° carriage and the pipe is slidably "While with a jack the support is fixed and the slide can be moved"

H2-2629 Dr.Hο B from 6 «4c 1966

Claims (1)

S c h u t ζ a η s κ r ü c h e ι 1.) Sliding on a support and encompassing it _? in which a role is stored _? which form during it by a manual drive members rotation on a surface of the support rolls and having at both ends of drive journals _g relying on in baking dee carriage at an acute angle to the support arranged running surfaces support ,, characterized marked in "= zeeihnet ^ <iaD the Schiitton (2) the other way around on a tripod (2a, 2Ij ₅ , 2c) or a similar frame and which is divided into sections © Stütae {1} can be moved up and down 2o) Device according to claim I ₈ , characterized thereby sucks? that the mast is made up of one part (1 - 1 a) _f the lcür-Eer are than the height of the triple foot (2a ₉ 2bρ 2c) carrying the carriage (2) and which are successively susammeiige'cuppelt practically seamlessly by suitable couplings (18) be _? as soon as the previous section with its KMe is just below the bracket (2ü) of the slide (2) 3o) device according to claims 1 vmd, 2 _? , characterized _f that at the lower end of the last Teilatüokes (1) a support plate (1a) ankuppelbai? is _o To H2-2629 Dr.R ₀ B of 6 ₀ 4ο 1 $ 66 4 o) Device according to claims 1 to 3, characterized in that the support (1) has a round cross-section and the rolling roller (9) has an oppositely curved shape corresponding to _{this cross-section o} 5e) device according to claims 1 to 4? through this characterized ^ that the journals of the Afowälz · = roll (9) have the same or smaller diameter as the roll _c β ©) Provision according to anrpruo & sn 1 "to 5 _S gekennsöichtiat _a « iaS a ^ / isciien clsr Abw (9) and. the .iißtri'3ös} cirl> al (14) sin Überstriübe {15} indicated Dr ₀ Ro B foai δ _β 4ο 1966