DE7715613U1 - RETRACTABLE CURTAIN FOR THEATER STAGES, SPORTS HALLS OR DGL. - Google Patents

Description

Pull-up curtain for theater stages, sports halls or the like.

The invention relates to a aufiiehbären curtain for theaters, sports halls or the like., Is old ewei attached at regular height intervals Durah Queraohnüre connected Torhang "web © n _v between the lower ends of a Raffaehiene, and with a motor-driven winding shaft for connected to the Raffschiene traction belts or like

With d @ n known curtains the Aufwiekelwalle is as rigid, mostly one-piece unit and attached to eshreren Points distributed over its length supported by pivot bearings on the ceiling structure. But bigger in buildings Deek span one of its parts of the ceiling sinkhole, for example the binders, often rigid and uneven

7715613 6/29/7B

ί ■

a shaft supported on many parts can pass through it be sown with strong bending stresses »something au one Difficult to open the partition curtain and even a · « Bruoh the pick! Wave can lead.

The invention therefore has the task of creating a separating gate slope su create, with which «the bending stress and the resulting risk of bruising from the Aufwiek ©! wave are largely eliminated.

discs? Äüxg »bö is» 6ffiuuuägSgSiää.B

that the winding shaft consists of a plurality of shaft accessories consists, which by Kreusgelankige or guiamielastisohe connecting links are coupled with each other * Vorsugs ^ eiae consists the take-up shaft alternating from shaft sections supported at both ends in pivot bearings, which take-up rollers for the pulling straps, and from non-supported Wallenab-BChnitten. Such a winding shaft can also be used with Subsequent subsidence or sagging of D © oköakonetruktlonstteile adjust in sections to the respective position of their »bearing parts, with the articulated or gUBMielastic connecting links compensate Siegeaosente and the risk of excessive bending stress Eliminate the winding wave * In the subclaims are Different types of usable connections members specified

7715613 06/29/78

Even if the measures according to the invention eliminate the risk of bruising of the take-up shaft to the greatest possible extent, for safety reasons it is advisable to "provide the curtain with an interception device" attached ratchet wheel and a pawl controlled depending on the centrifugal force, which "engages the ratchet wheel when a certain winding 1-shaft speed is exceeded, so that the open" wiokel shaft is blocked from rotation "Ia normal operation, the winder shaft is through the ■ The self-locking gears of their notorious drive mechanism should be held in place. If, however, parts of the gearing such as chains or chain wheels break or break, the winding shaft can rotate freely and a raised curtain would suddenly tumble close to one of the drives of the winding shaft portion · _e arranged rapidly blocked which the winding shaft when the transmission should lose its self-holding function. The known arrangement, however, offers no fall protection in the event that the winding shaft itself breaks, since in the known arrangement the only interception device can only rotate the shaft bridge on which it is arranged, while the other shaft bridge can rotate freely so that the would fall from this carried section of the partition curtain

7715613 06/29/78

■ · ■

■ «I

The invention is therefore still based on the further object to train the generic curtain in such a way that he even if the take-up shaft breaks over its full length against Abetrarc is secured. To solve this problem is therefore provided that the take-up shaft on both of them. End «it each is provided with an interception device, each one Centrifugal force controlled, attached to the winding shaft ·· have ratchet wheel. This measure ensures that in the event of a break in the take-up shaft, regardless of the location of the break point, each shaft bridge is always broken • An interception device remains assigned so that the entire curtain is not only in the event of a »breakage of gear parts, but Even in the event of a break, the coiled He is secured against falling down 1st. This safety measure according to the invention is not only applicable to the winding © consisting of shaft sections Ilen but also in the case of one-piece take-up shafts The advantage described is applicable, which is why independent protection is sought for this measure.

D @ r the subject of the invention is based on the Drawing shown in more detail, in which show:

i * ig · 1 in a simplified, perspective illustration a section of a standard curtain 8 in the lowered state,

7715613 06/29/78

»· * · P · · fft ·

ι · ■ (L · * · ■ '<■

I I

Fig. 2 A cross-section of one attached to a hall ceiling Partition curtain in the open state,

Fig. 3 in a schematic representation the

wave dta curtain according to the invention,

4 shows a universal joint as a first embodiment.

for a connecting link between swti sections the take-up shaft,

a claw coupling as a second example for the connecting links between d «n Shaft sections,

6, 7 »S and 9 detailed drawings for the claw coupling

after Mg. 5.

iig.10 another exemplary embodiment for the connecting links between shaft sections,

Fig. 11 a front view of the connecting link ffig. 10 and

* 12 an interception device to secure the partition curtain against falling in the event of a break the wound up hey.

7715613 06/29/78

* · ■ <· · t in t «· · e ·

111! · ■ · ■ · · · ο,

6 -

Figs. 1 and 2 aeigen one of two curtain webs. 1, 2, e.g. made of artificial leather, existing curtain. The curtain webs 1, 2 and attached at their upper end via strips 3 »4 on the deeke side and connected to each other by cross cords 5 provided at regular height intervals and divided into levels, the cross cords 5 each being attached to reinforcement alelets 6, 7 4-person curtain sheet above the two On the curtain side there is a winding shaft _{8 that can be driven by an electric motor and} carries the take-up roller for tension belts drawn in dash-dotted lines, which are passed between the two curtain lengths 1, 2 and are fastened at their lower end to a rail 11. The Tlaff rail is in turn connected to the lower edges of the curtain sheet 1, 2. When pulling up the tension straps 10, the Haff rail 11 successively strikes the tiered cross cords 5, so that the curtain webs I ₁ 2 in the fully opened state of the in ^ ig ig ig 8 are held. The winding shaft 8 is blocked from rotation by its self-locking gear 12.

flg. 2 shows an example of a ceiling construction in which the Aufwickelwell © 8 in pillow block bearings 13 on the support frame or mounting rails 14 is mounted, which in turn at * wei adjacent binders 15, 16 are stored. A durohang

7715613 06/29/78

· Ψ * lift

· «·» Ο · til

the binder 15 »16 would have a corresponding threading ■ it may have a large bending load with a one-tick opening » Wieke! shaft 8, whereby the winding shaft 8, above all · » after frequent opening and lowering of the curtain, scald could·

In order to avoid these difficulties, the invention is based on that disclosed in Pig. 3, shown schematically, "winding shaft" is provided, which consists of shaft sections 18, 19t, 20, 21 which are each coupled to one another by means of compensating elements 22 for bending. While the cuts 19 are supported at both ends in bearings 23 on the Boekenkonstrüktion and carry two winding reels for the train, those in between are bsw. Adjacent cells sections 18 are not supported on the shaft and they also do not carry any take-up rolls. The company 12 attacks the central shaft section 20, which is designed to be curved as the shaft section 18, 19, but is supported at both ends in pivot bearings 23 analogously to the shaft section 19. The shaft sections 18 to 21 can, as a result of the compensating connecting links 22, be inclined at an angle to one another in accordance with the suspension of the roof structure, so that the shaft sections of Bi "g" ~ © ntlastst "

7715613 06/29/78

It "■ ·" <

Oeaiäß Flg. 4 the connecting links can be used as a joint 2 * be formed, the halves of which near auß © a each end in sockets 25, 26 into which the shaft aabaeanitte 18 to 21 can be inserted, one of which is non-rotatable © Connection dev®d®r through fretting, screwing or welding can be produced «

According to the embodiment example near the Pig · 5% is 9, the connecting members can be Hauenkupplunge »27, welebe« u «swoi on the stem side a with axially interlocking claws 28, 29 provided EtipplungshSlften 30, 31, swisohca deaea an eterafömdger, elastic buffer body 32 is inserted axial dimensioning large? than the axial siagriff length of the claws · The two halves of the clutch can thus be inclined relative to one another according to their axial distance A. On their outside, the two claw halves are connected to one another by a wire rope or a resilient bracket 33. The coupling halves 30, 31 are each connected in a _{rotationally fixed manner by screws 54, 55 to the adjoining W 9} HQa sections 18, 19 Spring clips ensure that the two coupling units © a cannot be pulled apart accidentally *

The Tig 10 and 11 show a further exemplary embodiment for the connecting links swisohen iwei shaft absefenivfeeB 16, 19, which are suitable here as tubes. This · V «rbiadungs-

7715613 06/29/78

SI *

• tec nt ία β *

member 36 "" is a Gunmischisk 37, which is close to yours catch on the one hand along a diagonal old «strip» shaped flange 38 and on the other hand along a 90 ° Versetstan diagonal attached to another flange piece 39 is · The yiansehsttieke each point on their A «8« nside · «La® Flansehmiffe 40, 41 on, in soft the wave sectionon ' 18, 19 inserted and please let the screw · '» feolsen 42, 43 are attached. The two floneohatüoke each provided with an aittigen bore and a safety tube 44 is dureheetst, which duroh di # Sohraubung rigid ait of one wave section 19 1st while there is some radial play free in the old other shaft section 18 protrudes loosely. Sas security? tube 44 still holds the shaft hub 18 even if the ** ue »disk 39 should tear out»

As can be seen from Fig. 3, the winding shaft 17 is provided at both ends with an intercepting device 45, those on the ceilings and on the side, relatively courses ^ ellan sections 21 are attached.

The interception device 43 has a ratchet wheel 46 and a control disk 47 rigidly connected to it, which are driven by the winding shaft 17 30% through the S "fceuesa © heib · 47

7715613 06/29/78

ti ι

JOOlII. , _t «

- 10 -

is moved up and down. The locking lug 51 dips between the teeth of the ratchet wheel 46 "without touching them. When a maximum speed is exceeded, the Taefcroll 50 lifts off so that the locking lug 51 engages in a blocking manner in the ratchet wheel both Abi'angvorriohtuneen 45 jointly block the winding shaft 17 so that the high-sucked ^x racing curtain cannot bump into it. Should the winding shaft break at any point, each shaft break piece is either old from one or the other intercepting device 4> 5, so that even in such a jail the dividing curtain remains secured against falling over its full length »

7715613 06/29/78

Claims (8)

Patent attorney ······ ·· ·· · ·· Oipl.-Phys, Rudolf Peerbooms 56 Wuppertal - Barmen Friedrich-Engels-Allee 349/351 P / H 2618/77 / Tel. 556147 Sclmt z claims 1. Extendable curtain for theater stages, sports halls or the like, with two curtain panels connected at regular height intervals by cross cords, between the lower ends of which a gathering rail is attached, and with a motor-driven winding shaft for tension belts or the like connected to the gathering rail, characterized in that the winding shaft (1?) from a plurality of shaft sections (18, 19), which by universal joint or rubber-elastic connecting members (22) are coupled together. 2. Partition curtain according to claim 1, characterized in that that the winding shaft (17) alternately consists of shaft sections (19) supported by both ends in pivot bearings (23) » which take-up rollers (9) for the suction belts (10) and consists of non-supported shaft sections (18). 3. Partition curtain according to claims 1 and 2, characterized in that that the connecting links between the shaft sections are universal joints (24 ·). 7715613 06/29/78 ff ftf » β Ρ 99 0 9 · · · · ■ · · ■ · * · ft 4. Partition curtain according to claims 1 and 2, thereby gekenaeeiohnet, that the connecting members are claw couplings (27), which from two front end with axially intermesh end claws (28, 29) provided coupling halves (30, 31) exist, between which a star-shaped, elastic buffer body (32) is inserted, the axial dimension of which is greater than the axial length of engagement of the claws. 5 · Partition curtain according to claim 4, characterized in that it is leaned, that the two claw halves (30, 31) on their outside by a wire rope or a resilient one Brackets (33) are tied together 6 · Partition curtain according to claims 1 and 2, characterized in that that the connecting links (36) each have a Guiami disk (37), which β near its circumference on the one hand along a diagonal on a paddling piece (38) of a shaft section (19) and on the other hand along a diagonal offset by 90 ° on a flange piece (39) of the other shaft section (18) is attached. 7715613 06/29/78 2 H St. 'J 7 · Partition curtain according to claim 6, characterized in that that the flange cover (38, 39) »la strip-shaped · Plates formed and with one the end of a shaft section a female sleeve (40, 41) τβρββhen are. 8. Partition curtain according to claim 7 »characterized in that that the flange pieces (38, 39) are provided with a central bore and that the sleeves (40, 41) are adjacent Flange pieces enclose a safety tube piece (44), which is rigidly connected to one (41) of the sleeves and from the other sleeve (40), or from the » their associated tubular shaft section (18) is received without connection with radial play. 9 «Partition curtain, in particular according to claim 1, characterized in that that the winding shaft (17) is provided with an intercepting device (45) at both ends each has a centrifugal force-controlled ratchet wheel (46) attached to the winding shaft exhibit. 7715613 06/29/78