DE1908997A1 - Mechanical device for shading, covering and darkening greenhouses - Google Patents

Description

Mechanical device for shading, covering and darkening greenhouses

Addition to the main patent application under file number P 1 582 759.5 from 2I.IO.I967

Patent application for Willi Hanselmann

6852 Hockenheim Haydnstr. 7th

The main patent application is for a mechanical one Device that makes it possible, on the one hand, to provide windproof external shading both as sun protection and as protection against hail in the summer months, on the other hand a cover against frost in the winter months or to temporarily darken Short-day plants, in a short time over the glass fronts (roof and Side fronts) of a greenhouse. The main patent application was based on a mechanical device for shading, covering and darkening greenhouses whose roofs and side walls are glazed and on or to which the mechanical device itself is attached directly.

The invention relates to further possible applications and embodiments of such a mechanical device, the advantages of which over the application and design according to the main patent application can be seen in the fact that, on the one hand, the risk of excessive tension and wear of the material for shading, etc., is substantially reduced, a direct one irradiating the sun is prevented by the open air and the other hand, a significant cheapening of öewächshaus-Eretellungskosten is achieved and a driving with transport carts, tractors NSIT plow ηηά cutter is made possible "feemäß the invention it is proposed to provide a rectangular frame, which is preferably in Leiohtbauweise a, ns Aluminum profiles are welded together, extends in length from the ashmter edge bie to the ridge and is preferably 3 m in width

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This frame receives on one side the mechanical device part for winding and unwinding the material for shading, etc., and on the other opposite side the mechanical device part for winding and unwinding the pull ropes. Frame and mechanical device thus form an independent unit for placing on a gable roof side of the greenhouse, whereby it is proposed that the frame side lying on the lower roof edge of the greenhouse be rotatably mounted on the roof edge itself, the ventilation blades of the greenhouse in the frame legs and left or on the right then further frame units including mech. Uncouple the device in order to be able to operate the device for shading etc. together on all frame units lined up together. The replacement of the different cover material for shading or darkening can easily be done with the frame units removed.

According to the invention, it is also proposed to provide the greenhouse only in a frame structure without glazing it either on the roof or on the side walls. In place of the glazing, mechanical devices are attached that cover the side walls and the roof with covering material in several strips or leave the cultivated area completely uncovered in warm rain as well as in the cultivated time with frost and snow. Such an application applies to greenhouses both with gable roofs and with arched roofs, in particular for more or less large hobby greenhouses, the costs of which can be reduced enormously as a result. It is advisable to provide a single mech "device for rolling up and unrolling the covering material" over the entire length of the greenhouse an easy ¹ run is achieved and, on the other hand, the crosswind has as little attack as possible before it is offered.

Figure 1 shows an example of a heliaenabdeekoinhsit on one side of a greenhouse glass roof in a cut-off, for which various details are drawn in Figures S to 5.
The frame 1 of the roof cover is & n its .unteren end © in äos »

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Storage 2 rotatably mounted. In the upper area of the frame is provided with dovetail-like guides on both sides, in which guide rollers 5, which are mounted on the lower edge of the ventilation blades 4, run along when they are lifted and secure the frame $ * y possibly further lifting by the wind.

The frame structure 1 offers the possibility of a more or less wide wire mesh 5 or wire bracing below and above of the roofing material. Spacer tubes 6 provide additional stiffening of the frame 1 at intervals of approx. Wire mesh or bracing and spacer tubes secure the covering material 7 before sagging, for example when there is snow load, and inflation when there is a build-up of wind or a storm.

Figure 4 and 5 shows the coupling of the winding tubes 8 for Winding and unwinding of the pull cables 9 from the mech. Contraption. The winding tube 8, which is on the pivoting frame 1 in bearing 10 is rotatably mounted, is extended with a stepped bolt 11 and connect with a coupling sleeve 12 with pins 15 and Secured with split pins 14.

In picture 6 is an embodiment of a greenhouse frame construction shown in cross section without glazing on the one mech. Device for rolling up and down the roof and side wall cover is appropriate.

Figure 7 shows an enlarged view of the unwinding and winding device including a walkable rain gutter and condensation trap.

The greenhouse frame construction with supports 15 made of pipe or Profile iron, stiffened with cross struts 16, carry a rain gutter 19 by means of small struts 17 and bracket 18 over the whole The length of the greenhouse runs with a slight slope. The condensation that forms on the inside every now and then becomes with a Schwitzwaseerfangrinne 20 discharged.

The roof ribs 21, supported with struts 17 and bracket 18, span the entire width of the greenhouse and in a moderate arc the task of carrying the plastic or fabric roof covering 7. In order to counteract the latter when pulling over, little sliding resistance For the roof ribs 21, preferably drawn pro-

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to use film material with their known smooth surfaces and / or to equip them with rollers at intervals.

According to the width of the cover material, for example with Jm is suggested, bearing blocks 22 in 3m intervals in the gutter 19 attached, the ihereits the winding tube 23 (for the cover material 7) is rotatably mounted take up. The example shows one of many possible rotatable bearings by means of three (plastic) rollers 24 die wear the tube 23 and even on both sides by means of a Bolts are stored in the bearing block 22

To seal the gap that arises when the roof covering is unwound from the pipe 23, an elastic band with an arcuate profile is used Rail 25 recommended, e.g. plastic, diesel growing Winding diameter is pressed elastically against the roof ribs 21. Instead of a spiral spring in the tube 23 for the Tensioning and the automatic rewinding of the cover 7 is provided a weight 26 which is attached to a rope or a Chain generates the rewinding torque on tube 23. For the same purpose, for example, a leaf spiral spring in the form a large clock spring - are provided. For winding up the pull cords 27 * of which at least 2 pieces per cover width a winding tube 28 is necessary, which is rotatably supported at intervals on brackets 29 and by means of a chain drive 30 and hand crank 31 can be operated. The breakthrough 32 in the gutter side wall is preferably with a lined rounded eyelet. On the winding tube are in appropriate Sprinkling nozzles are attached at intervals and the winding tube itself is provided with a water connection quick coupling at one end, whereas the other end is locked.

Figure 6 to 10 shows a schematic cross section with details a non-glazed small or hobby greenhouse frame construction with gable roof including a mech. Device for uncovering and covering the roof surfaces.

Both roof surfaces are jointly supported by a rotatably mounted in the gable, the tension cables 27 winding winding tube 28 with the Covering material 7 for shading, etc. coated. The cover mat for 7

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is like in picture 1 with a wire bracing 5 and spacer tubes 6 protected against sagging and swelling. The tube 23 on the cover material by means of a leaf spiral spring 32 7 is rewound automatically, is rotatably mounted on a bearing block on the greenhouse side wall, the side walls 35 and the gable ends are firmly braced with covering material.

Figure 11 shows a welded to a frame profile 36 on the Ends rolled U-profile 37 for guiding the on the long side of the cover material 7 attached pull cord 27 with accordingly possible expansion of the cover material.

Figure 12 with section B-B, shown in Figure 13, shows two Z-profiles 38 which are resilient in an M-profile 39 by means of leaf are resiliently supported (shown in the end position) around the cover material 7 according to its coefficient of expansion To keep temperature fluctuations under tension.

Finally, Figure 14 shows a small or hobby greenhouse frame structure in cross-section without glazing of the roof surfaces, although the automatic rewinding of the cover material 7 is used on the roller 23 by means of a spring or weight, pulling it off the roller 23 and covering the sides of the greenhouse roof but is done by hand, with the filstab 41 stiffened beginning of the cover 7 on both sides in, the retraction blocking grooves42 at any height. For sealing the two profile bars 4l with the ridge profile 43 a soft, elastic rubber hose 44 is proposed Suspend under the ridge profile 43, which is compressed when the profile rods 41 are hung into the lateral grooves 42 will.

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Claims (12)

Claims 1. Device for shading, covering and / or darkening greenhouses by means of foils according to patent application under file number P 582 759.5, characterized in that the device is not attached directly to greenhouses themselves but to a frame structure 1, the limited area with foil or similar . is mechanically coated and is attached as an independent unit for shading, etc., on (\ em greenhouse roof. 2. Apparatus according to claim 1, characterized in that the frame structure is pivoted at the lower end of the roof. 3. Device according to claims 1 and 2, characterized in that that the frame structure by means of rollers, slide rails or elements serving the same purpose, which are attached to the ventilation blades, are raised when the ventilation blades are opened and be guided. 4. Device according to claims Ibis 3, characterized in that that the rollers, slide rails or the like run in a captive or dovetail groove or , slide, so that a protection against further unwanted Swiveling up the frame structure is given. 5 · Device according to one or more of claims 1 to 4, characterized in that two or more frame structures are mounted next to each other on one or both halves of the greenhouse and the traction cable pulleys coupled to one another for joint actuation are. 6. The device according to claim 1, characterized < that non-glazed greenhouse frame structures with arched roofs or gable roofs both sides odei> are spanned separately with or without side walls with the film, the Mets oazum shading. 7.Vorrichtung according to claim 1 and 6, characterized _s that for generating the rewinding torque on the slide FoHe —7— 009838/0904 winding roll a rope is wound on that has a weight hanging on it. 8. The device according to claim 1, characterized in that the Foil material gets a thickening at the lateral ends and is trapped in a profile, and there is enough play around for heat expansion. 9 · Device according to claim 8, characterized in that the Compaction by wrapping traction ropes around the film and gluing or welding is achieved with the same. 10. The device according to one or more of claims Ibis 9 *, characterized in that the profile that guides the film with the thickened ends is ^{elastically cushioned in a second n} profile by means of leaf springs or the like material around the film in the event of a change in temperature due to temperature differences to keep. 11. Device according to one or more of claims 1 to 10, characterized in that above and / or below the film or the like a wire mesh or wire bracing and / or pipes are attached to prevent any sagging or puffing of the film. 12. The device according to one or more of claims 6 to 11, characterized in that the roof ribs at intervals are equipped with idlers. For this purpose ÖBlatt drawings. Hockenheim, February 20, 1969 009838/0904