DK148251B - CLOSING MECHANISM FOR UNDER A ROOF OF ROOF HANGED GARMENTS - Google Patents

Description

in 148251

The present invention relates to a closure mechanism for curtains and of the kind set forth in the preamble of claim 1.

In Danish Patent Application No. 118/81, a curtain for light and / or heat shielding is known, which curtain is preferably arranged under a roof slidably between an open position and a closed position. When this known curtain is pulled, its individual curtain parts are mutually sealed by means of an edge joint consisting of a longitudinally suspended flexible membrane and a cooperating rectilinear body accommodating the leading edge of a curtain. When the curtains are pulled away, the curtains of the curtain hang loosely on the other side of the rectilinear body. As the rectilinear body fills approx.

10-15 cm, and the hanging hangers will be 20 cm or more, this subtracted curtain will fill over 30 cm in the longitudinal direction of the greenhouse. This limits the opening of the illumination so that the amount of incident light is also limited.

From DE publication publication 29 08 330 there is known a jealousy with mutually parallel slats which can be swiveled; horizontal horizontal equidistant axes intended for installation under a greenhouse roof. In the subtracted state, the slats are pressed against a greenhouse wall by means of a weight hanging from the curtain's pulling mechanism.

Furthermore, from Danish Patent Specification No. 108,537 a closure mechanism for curtains for a greenhouse is known. This closure mechanism consists of two horizontally suspended curtain parts, the opposite edges of the curtain parts being slidably suspended on fixed suspension members and connected to pulling means adapted to move the curtain parts towards and away from each other. Both curtain sides have a tab along the front edges in the form of a downward seam of fabric. One of these strips of fabric has across the strip and along its free.

2 148251 edge extending stiffening rods. The pull means of this curtain pair are connected to the strip at locations located below the leading edge. One tab strip has stiffening tubes along both of its long edges to which the transverse stiffening bars are connected.

This closure mechanism is suitable for two curtain sections that are pulled towards each other, but are not immediately suitable for mutually arranged curtain sections, all of which are pulled in the same direction for mutual sealing between the front and rear edges.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple and inexpensive closure mechanism of the type mentioned in the first paragraph, which by simple means ensures a close closure between the leading edge and the back edge of two curtain parts pulled in the same direction, while at the same time ensuring that the curtains' rolls in the subtracted position fill as little as possible.

This object is met by the fact that the closure mechanism mentioned above is peculiar to that of the characterizing part of claim 1. Hereby it is obtained that the trailing edge strut and the extending fabric web between these extending fabric webs are raised to engage the downwardly sloping fabric web-shaped tab to form a seal, and in addition, when each curtain part's pulleys, when the curtain is pulled, are pressed against it by the the rear pulling member towards the rollers tilted rear edge struts.

The interference can be either by a front downward short tab being gripped by a longer rear tab, whereby the front tab will be on top of the rear tab, or by a shorter rear tab pressing against a center region of a front tab.

Practical embodiments of the claim 1 are set forth in the characterizing part of the dependent claims, in particular, the characterizing part of claim 5, specifying a preferred embodiment which partly ensures an effective mutual closure between the front and rear parts. the rear tab, while at the same time ensuring, by means of leading edge struts, that the rollers with the curtain parts in the subtracted position are further compressed so that they do not fill more than approx. 10-12 cm, thereby increasing the exposed brightness of the window and reducing the shadow effect.

Below, exemplary embodiments of the closure mechanism according to the invention are described on the basis of the drawing, in which FIG. Fig. 1 is a plan view of a section through two curtain sections, the shape of which is indicated and whose front and rear fabric tabs are closed together by means of the closing mechanism according to the invention, the parts essential to the closing mechanism being drawn in full line; 2 shows a curtain part pulled away and compressed by means of the closing mechanism according to the invention, and FIG. 3 is a front view.

In the specification and claims, the words "front", "rear" and similar designations are used for the parts which are front and rear respectively when the curtain parts are pulled, while the word "transverse" and corresponding designations are used to denote parts which are perpendicular in the direction of the curtains' direction of travel. X all the figures have the same reference numerals used for corresponding parts.

The closure mechanism 1 shown in FIG. 1 is particularly intended for use in connection with curtains suspended under sloping glass roofs (not shown), especially greenhouses, and preferably at rallies with and close below the glass roofs. A number of parallel-extending curtain parts 2, 3, of which only two are shown, are suspended by means of hooks 5 in horizontal supporting threads 4. Other hanging means may also be used instead of the hooks 5. At the leading edge of each curtain pair, a transverse extending rod 7. is inserted in a barrel 35. The bar 7 and the barrel 6 are placed under an open eye 8 by an open eye 8 of a number of leading edge struts 9, of which only one is shown. Each leading edge strut 9 has an upper plate-shaped portion 10 with the narrow edges facing forward and backward, while the lower portion with the eye is rotated such that this portion has an extension in the transverse direction.

Each leading edge strut 9 is suspended in a diagrammatically shown running cat 11, which can be displaced over the return run 13 of a pulling wire 12. Each leading edge strut 9 is pivotally suspended in the running cat 11 via a lower shaft 14 located in the bottom of the running cat which is passed through an upper hole. in the front strut 9. Also other simple, pivotable suspensions may be conceived.

In the upper part of the leading edge strut 10 there is a distance below the upper hole two at the same distance from this string holes 15, 16, through which a string 17 retained or bonded in the string holes 17, the front part 21 of the string is secured to a front pulling member 18, and the trailing portion 22 of the leash is attached to a rear pulling member 19. The pulling means 18, 19 are secured at a spaced distance a to the draw bar 20 of the pulling wire 12.

The distance a, the length of the forward portion 21 of the string 17 and the rear portion 22 and the position of the string holes 15, 16 in the part 10 are adjusted such that as the pull race 2Q moves in the direction of the arrow b, the front portion 21 is tightened, thereby pulling the front strut 9 and pivoting them slightly forward upwardly about the transverse shaft 14 to a slightly inclined forward and upward position, whereby the curtain part is pulled forward while the running cat 11 follows along with the return run 13 towards its direction of movement, arrow c.

Within the rear tab 23 of each curtain portion 2 in the form of a downwardly sloping fabric web is arranged a transverse thread 24. A plurality of trailing edge struts 25 are suspended on the thread 24 by a hook-shaped portion 26. Each downward trailing longitudinal portion 27 of each trailing edge is curved slightly backward. and the tab 23 of the rear portion 35 of the curtain portion is clamped around the portions 26 and 27 and is clamped in a bend 28 at the lower end of the longitudinal portion 26. In the rear tab 23 a non-stiffened bar may not be inserted in a running bar not shown.

To the front of the hook portion 26 there are e.g. by means of a clamping means 29 or by other means attached a hairpin-like bracket 30, the legs 31, 32 of which are guided around the drawbar 20 for a purpose explained in more detail below.

In addition to the portions described so far, the closure mechanism 1 comprises a plurality of abutment means 33, only one of which is shown, which is fixedly positioned on the return 13 of the pull wire 12 for displacement therewith. Each abutment member 33 is positioned on the return bar so that, when the curtain portions 2, 3 are nearly pulled from or off, it is positioned between pull means 18, 19.

The closure mechanism 1 operates as follows. When the curtain is pulled and when the front tab 34 of the curtain part 3, which is a transverse fabric web, is being pulled out fully in the direction of arrow b, the impact member 33 will hit the trolley 11 and carry it backwards with the return run 13. the forward pulling means 18 will still be momentarily advanced by the pull race 20, the leading part 21 of the cord 17 will pull in the part 10 of the front strut 9 and swing the front strut forward and upward as shown in FIG. 1. Since the bottom of the front strut eye 8 with the struts 9, 25 hanging vertically, is preferably located slightly higher than the lower bend of the rear edge strut 25, the eye 8 with the web of the wrapped curtain fabric (tab 34) will hit the curtain fabric web (tab 23) which is clamped out on the long curved part of the rear strut 25. Substantially at the same time as the abutment member 33 hits the running cat 11, the front pulling member 18 will hit the hoop 30, thereby tilting the trailing edge strut 25 rearward about its suspension point on the wire 24.

In this way, the rear edge struts 25 arranged on a row of the transverse thread 24 will lift the entire tab 23 under the corresponding tab 34 of the curtain part 3 mounted on a number of the front struts 9, thereby forming a close closure between the curtain parts, so that cold air from the space between the curtain and the windows cannot flow out, but form a relatively quiet, insulating air layer as the tab stretched on the rear edge strut is clamped against the strut.

When the curtain is pulled off, the pull wire 20 moves in the direction of arrow c. This first relieves the pressure on the hoop 30, so that the trailing edge stiffener can gradually swing to its vertical position in the direction of arrow d. slackening of the front 21, whereby the leading edge 9 during the retraction is pivoted in the direction of arrow e until it takes a vertical or inclined downward, rearward position. During the further backward pull, the row of leading edge struts gradually pushes the curtains of the curtain part 3 together to eventually push all the curtains of the curtain part together against the rear edge strut. This means that a curtain part covering the gap between two rafters (not shown) in a greenhouse (not shown) after compression of its rollers only fills approx. 10 cm in the longitudinal direction of the greenhouse and thus do not fill substantially more or even less than the latches, cf. 2nd

The presently preferred and most secure embodiment is described above. However, other embodiments are also apparent to those skilled in the art. Thus, in a simpler embodiment not shown, the leading edge strut 9, the stop member 33 and the running cat 11 can be completely omitted. In this case, the transverse rod 7 is preferably also disposed in the barrel 6 of the front of the curtain part 3 in the subtracted condition, downwardly extending tab 34, and the front and rear portions 21, 22 of the cord 17 are connected to the front hook 5 of the carrier wire 4 or to a not shown. rod placed in a running gear not shown next to the first hook 5. If the front tab 34 e.g. is approximately. half as long as the rear tab 23, the row of trailing edge struts 25 and the intermittent curtain webs intervene below the barrel 6 with the bar 7 and lift the front tab 34 to form a good seal. If the front tab 34 is longer than the rear tab 23, the bend 28 of the rear edge strut 25 and the intermediate edge seam of the curtain web will press against the front tab 34, e.g. essentially in the middle of this, thereby creating a seal. During the subtraction of the curtains, the rear pulling member 19, while pulling in the front hook 5, in the final phase strikes the hoop 30 and thereby guides the hoop backward and flips the rear edge strut 25 forward against the rollers so that they are pressed together against it.

To further simplify the construction, the rod 7 may optionally be replaced by a chain of lead weights or may be omitted entirely.

The draw bar 20 of the pull wire 12 and return run 13 at one end of the housing are passed around a drive drum 40 driven by a motor 39 for retraction of the pull bar 20, while the pull wire run at the other end is guided around a non-running wheel. The motor 39 is e.g. carried on a bracket 41 which e.g. is attached to the gable wall of the house.

In one embodiment, the motor 39 is connected via the conduit 42 to a control means 43, e.g. an electrical control circuit. This is programmed for in the daytime and when the curtain

Claims (9)

The parts are subtracted from, by means of the motor, the throttle 20 and the rear throttle member to adjust the inclination of the rear edge strut 25 and thus the rollers 35 relative to the vertical, so that the rollers are substantially parallel to the incident sun rays so that these shadows are as small as possible. 1. Curtain closure mechanism, e.g. for insulating and / or darkening curtains for a greenhouse, consisting of a number of parallels under a roof of a series of suspended curtain parts (2, 3), the trailing edges of which are retained and the leading edges of which can be moved back and forth by a fixed path for engagement with a positioned in front of the rear edge of the curtain, which curtain members are suspended on carrier threads (4) running parallel to the direction of preference and connected to a truss mechanism (12, 13, 20, 18, 19) arranged to thread the curtain parts to and from, characterized in that each curtain part (2, 3) has a front (34) as well as a rear (23), in the subtracted substantially substantially downwardly guided tab in the form of fabric webs, that a number of each with each rear tab (23) is fixed with one another spacers (25) which are pivotally mounted on a transverse thread (24) extending behind the curtains (2, 3) extending rearwardly (24), and that each rear strut (25) is extended upwardly with a locking means (30) designed and placed to, when a front pulling member (18) below the curtain pair. the projection (2, 3) of the rear tab (23) engages the front pull member (18) fixedly mounted on a draw bar (20), which is connected to the front support means (2) of each curtain pair (2, 3). 5 or 9) so that each trailing edge strut (25) and thus each rear tab (23) is tilted backward and upward to engage the corresponding front tab (34) of each curtain part (2,3) when the curtains are pulled 25251 and, when the curtain parts are pulled, engage with a rear pulling member (19) fixed to the draw bar to tilt the rear edge strut (25) downwards and forwards. Closure mechanism according to claim 1, characterized in that each trailing edge strut (25) has a hook-shaped part (26) suspended on the transverse thread (24) and a long part (27) which is preferably curved backwards in the direction away from the associated curtain part (2). Closure mechanism according to claim 2, characterized in that the rear tab (23) of the curtain part (2) is clamped around the hook-shaped part (26) and down along the rear side of the long part (27), at whose lower end it is clamped in a folding (28). Closing mechanism according to claim 3, characterized in that the engaging means (30) is a hairpin-shaped brace, the legs (31, 32) of which are attached to the front of the hook-shaped part (26). Closure mechanism according to claim 1 and one or more of the subsequent claims, characterized in that the lower edge of the front tab (34) of each curtain pair (2, 3) is held in a leading edge strut (9) pivotally suspended in a on the return wire (13) of the pull wire, a slidably mounted carrier part, preferably a running cat (11), which at its upper part (10) is connected via a cord (17) to both the front and rear pulling means (18 and 19, respectively) at its upper part (10). ) and that a stop means (33) is fixedly fixed on the return passage (13). positioned to engage the support portion (11) when the curtain part in question is almost completely pulled. A closing mechanism according to claim 5, characterized in that the leading edge strut (9) is hinged to the downwardly directed portion of the running cat (11) through a hole (14) through a hole in the upper part (10) of the leading edge strut, in which a distance from the transverse shaft (148261). For example, two lacing holes (15, 16) are formed in which the lanyard is secured and wherein the lanyard (21) and rear (22) of the lanyard are attached to the forward and rearward pulling members (18 and 19, respectively). A closure mechanism according to claims 5 and 6, characterized in that a rod (7) is preferably inserted at the same or a short distance from the carrier wire (6) in the lower edge of the front tab (34). 4) than the lower edge of the rear tab (23) at the bend (28). Closure mechanism according to claim 5, characterized in that the distance (a) between the pulling means (18 and 19), the length of the lead part (17) and the rear part (21 and 22, respectively) and the position of the string holes (15, 16) are adjusted so that that when the pull thread (20) of the pull wire (12) moves in a direction (arrow b) to pull the curtain part (3), the front part (21) will be tightened so that the leading edge strut (9) will pivot slightly forward and upward in it. the last stage of the displacement, when the running cat (11) strikes the abutment member (33), to swing further upwards, while the rear edge strut (25) is pivoted rearwardly upwards under the front strut (9) by means of the front throttle (18) and the hoop (30). ), and as the draw bar (20) moves in the opposite direction (arrow c), the rear portion (22) will tighten and pull the front brace (9) backward to an obliquely downward, rearward position, in which the front brace (9) gradually depresses the curtain portion (3). ) rollers (35) together against the curtain part (3). rear edge stiffer. Closure mechanism according to claim 1, characterized in that the distance (a) between the pulling means (18 and 19) and the length of the string (17) to a front hook (5) connected to the rear part (21 and 22, respectively) is adjusted so that that when the pull thread (20) of the pull thread (12) moves in a direction (arrow b) to pull the curtain part (3), the front part will be tightened and pull the curtain by the hook (5), whereby the front pulling member (18) in the last phase of the cover, the brace (30) of the rear strut (25) strikes