DE1699487U - SELF-LOCKING WINDING AND UNWINDING DEVICE FOR THE DRAWBAR OF BLINDOWS, ROLLING CURTAINS OR. DGL. - Google Patents

Description

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May 10th

Carl Götae sea ,, Manufacture * Düsseldorf _f BrSeratlieratraie 196 »

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The invention relates to a self-locking open and

for ias Zugo »ga» το »£ e & ouele &». BollToap · «the like with a fröiaffieli di« Utorersöits with the drive element, for example a hand crank, which is mounted in a stationary housing dge & toa »

the 'known winches aimex type will hold the sum

sided

or ratchet wheels that work together with ratchets.

three Erstgesa & ßea Amordaungta Jhabea dea laoÄteil that they in Äwfbatt «md i» dta? Manufacture naistäjidlioli and expensive would be deat auoli etttxaiifailig · In the case of nit Sperrädeam amsgestattetta WiBdea t »estekt wiedtrua dtr illetaad» that the Speasraiag gate to the Herttnt # r3. So two-handed operation "with a very specific sequence of the eiBKeInea ^ nd handles necessary" so that fcei Betätipaag äer "Talousie dwroli! Fageiibie leiüM geraaolit" 3 £ iJaaiien _for ά & β the life time a $ x Aalage

»Self-locking Au * ·« ad
i & t · * ♦ ». # ...» · *

Apart from that, the clasp cleans during the cranking up The blinds noise, which was annoying in the case of the shutters will.

The invention is based on the object of creating a winch which, with the simplest, robust construction, works absolutely reliably and when it is incorrectly operated, even when it is used by the inexperienced, a "Wiolttig is fex" 0Vf <generally this © förtellhaftea Big ^ nsoliaftea extsielt contact without "read it to necessary i? ary, the Gesamtabmeesungen and order dimensions of the winds to increase.

The novelty of the invention consists in the fact that the hand crank is pivotably connected to the drum axis, in such a way that it sioSi fceim toslasse »after the effect of a power · preaching trip of a Federt Hleir locking means» it eiae »abutment3? to

The blocking means Itir the crank can wciü in many ways way Training »« s ^ Besoade eiafaeli wij? D dea? Structure iadessea when &,% e locking means consist on the one hand of buckles on the crank arm and on the other hand of a perforated ring arranged concentrically to the drum axis on the end wall of the winch housing.

When winds after the invention of SChv / enkweg dex crank In Siø & TUAG the fröBöaelaö & se for is thus exploited the liielclaufsicherung. As long as a force acts on the crank, that is to say, the crank is turned, a spring is forced under

¹¹ Self-locking take-up and take-off device. ·····. ⁿ

Tension is set and at the same time the locking pin on the crank is swiveled out of the area of the perforated crane The crank can now be turned freely in both directions, i.e. the blinds are raised or lowered depending on the need · On the other hand, if you let go of the crank », the pretensioned spring for the crank with its locking bolt immediately falls into one of the holes of the Loohkranaes and is thus determined * Bine the help of the second hand has therefore become unnecessary and incorrect operation due to the inevitable mode of action is completely excluded.

Further details of the invention are based on the drawing explained as an exemplary embodiment

in Fig. 1 the new winch in longitudinal section and

2 in a tiny overall view

shows.

In the example shown, the winch initially consists of the winch housing, which in turn consists of the fastening flange 1, the front flange 2 and the daswieohengeeehalten, at 3 recessed pipe section 4 composed. The mentioned Parts are firmly connected to each other with screws 5 · Lightweight rotatably in the winch housing the Aufeugsorgan, a.B. a Tape, winding and unwinding winch drum 6. The latter is via a sinkhole 7 or a grooved pin, a wedge or the like. firmly connected to the drum axis 8 «

"Self-locking winding and unwinding device ··. . "

According to the invention, the free end 9 of this axis is in the Durohmesser Reinforced and provided with an outwardly open Sohlita 10, in which the d «r is correspondingly flattened at 11 Arm 12 of the hand crank 13 is pivotably arranged · The pivot point of the crank is formed by a bolt 14, the is arranged eccentrically to the drum axis in order to provide enough space to accommodate a compression spring 15 au soh, which in turn tends to move the crank in the direction of arrow 16, i. so swivel so that the locking pin 17 seated near the free end of the crank arm 12 when the crank is released in one of the holes 18 of the end flange 2 arranged in the circle of rotation of the locking bolt, and thus the crank, like that Figure 2 leigt, able to determine. In the opposite Sohwenkrichtung, so when operating the winch, is the The pivoting path of the crank is limited by a nose 19 which then rests against the front end 9 of the drum axis from the outside. This position is illustrated in FIG.

As calibrated from the description and the drawing without further details Explanation results, the advantages already listed are made using simple, technical means, i.e. under achieved little structural effort, so that the end result is a winch that is easy and cheap to manufacture satisfies all conditions occurring in the construction of blinds in a particularly advantageous manner. When it comes down to it, the perforated wreath 18 To make it invisible from the outside, you can use the front flange 2 by a rotatably arranged around the collar 9, not shown

Aufnad
contraption ...*..,.,."

Sheet metal disc or the like. Cover that only has a single hole for dta passage of the Sperrliolaena 17 "has» The length of this The bolt or tie thickness of the cover plate must then be matched be, d & ö dta? Spoaerbolsen lasts 1 "dies" Sßlieil> e p «Xt is» the latter is also included when the hand crank is turned tows

(?. Ig E) to prevent unintentional disengagement of the locking pin If out his] »Lochkranß and thus a iatspeswea the winch when gßgm to mature counter-thrusting Ütm pivoted-hand crank with certainty can mm the | 13 subsequent ä» ie s & f & Handle Lever arm hand crank, detachable train. On the locked winch Cfig * 2} Meifc * das »malt dem ÄbÄteta * des Qid & ft * £ U8 d # * crank only the short lever arm with the locking bolt 1 * 7 and the compression spring 15 exist. However, this makes it impossible to unlock the winch, for example by playing children, which, due to the short crank arm that is still available, would have to exert a considerable amount of force to overcome the spring tension 15 and thus the backstop of the winch cancel,. .

Claims

Claims (2)

P * Π DE1 Π - 4 π TiQ Auf- «ad Expires 1 ·. device ····. ···. ·· * claims 1.) Self-locking winding and unwinding device for the pulling element rm blinds, roll-up curtains or the like. With a drum rotatably mounted in a stationary housing, which in turn is frictionally connected to the aluminum drive organ, beiafielsweäe · “iatr j ^ adteel» »!, ireay ^ iimdeii tst _t dadua? eli g «* indicates that the hand crank (12, 13) is pivotably connected to the drum axis (8) in such a way that when you let go of the action of an energy store, TTöarssugswölse« tatsr spring 0 * 9} * ttfetj »it öiae» ortef eet «n Widtrlag®» «» vexxiegeSa 2.) winch according to AES ^ mioh 1, characterized in that the locking means consist on the one hand of a locking bolt (17) seated on the crank arm and on the other hand of a perforated crane (18) arranged concentrically to the drum axis on the end wall (2) of the winch housing. dt »MspaiiieÄöa 1 imd 2 * dadmroJi that the St & me & de (9) of the froiaiaelaoJist old one soiillt »(1ö) attsgeatetzt let« Sa dem the arm (12) Hand crank arranged over an eccentrically ssur Tromelachae The pivot pin (14) would be pivotable and in the auoh which determines the automatic », the crank causing feder (15) Back atiöea hia -reirdeelet «ateafgebafaßht is # "Self-locking winding and unwinding device * .. * 4.) Winch according to claims 1 to 3, characterized in that that the outer enduro knife of the front end (9) of the drum " axis serves as a stop surface for a nose (19) «which limits the swiveling path of the crank when the winch is operated · 5 x) A winch according to claims 1 to A, characterized in that the longer, SiOH adjoining the handle (13) lever arm of the crank handle releasably * n with the teüx * eT _f detecting the winch causing lever arm of the hand crank is connected ο