EP1097652B1 - Free-arm canopy - Google Patents

Description

The invention relates to a free-arm umbrella, but primarily not exclusively intended as a parasol. The known free arm screens have a decentralized mast and an umbrella cloth made by radial umbrella struts and is attached to the support struts hinged to it. At the lower ends of the A strut slide is articulated freely to support struts. The screen is with its umbrella crown or with an entire umbrella strut on a bracket attached, which in turn on the mast standing next to the umbrella over a Slider sleeve is articulated in height, the boom on a hinge strut is suspended, which is articulated at the top of the mast. At down pulled slide sleeve of the boom shows this almost vertically upwards and is, so to speak, on the mast. When the slide sleeve is raised, the boom becomes outwards, swung away from the mast, and then points obliquely upwards. The The screen is then opened by pulling a line. This line is off the mast led over the outrigger to the umbrella crown, and from there down to the open hanging from the lower ends of the support struts. By pulling the slider is pulled up on the line and over one on the underside of the umbrella crown molded on which he by means of a Pawl engages. The umbrella cloth is now stretched. To close the umbrella the pawl lock on the screen slide is released and after that the Umbrella can be folded. By lowering the slide sleeve on The boom is finally retracted.

Those free arm umbrellas where the umbrella as a whole matches its The umbrella crown is hung on the boom, have the disadvantage that the Umbrella axis of the clamped umbrella always runs vertically and the The screen cannot be tilted towards the sun. In the event of, where the umbrella is attached to one of its umbrella struts on the boom by adjusting the boom inclination, at least the inclination of the open one Umbrella allows in one plane, namely about the pivot axis of the Boom. The tilting of the open umbrella is in other directions however not possible.

Furthermore, a free arm screen according to the preamble of claim 1 known from US 5 937 882 A.

The object of the present invention is to provide such a free arm screen to develop further so that the open umbrella also around the longitudinal axis the boom is pivotable, and further that the whole umbrella structure is significantly simplified by fewer parts than in previous designs are necessary and thus the manufacturing costs are reduced. Is further it is the task of a special version of this umbrella, the erection and opening the umbrella.

This task is solved by a free arm screen with radial screen struts, hinged support struts and one freely hinged to the support struts Umbrella stick slide, as well as a decentralized, outside the umbrella standing mast, which is characterized by the fact that one of the umbrella struts is constructed as a boom and with its outer end height adjustable on Mast is articulated, and on its top via an articulated strut with the mast tip is connected, this screen strut between the screen cloth edge and the mast has a swivel, and the hinge strut via a pivot hinge is connected to the shield strut such that this shield strut around the axis between the swivel joint and the swivel hinge can be swiveled. The advanced task of creating such an umbrella, which is special easy to set up and open, is a free arm screen after the independent claim, but additionally with the features of Claim 2 or 3 solved, or even with the features of both claims simultaneously.

In the drawings, one version of this free arm screen is shown in different Views shown and it is described in detail below and its function and handling is explained.

Figur 1:

Den Freiarmschirm mit aufgespanntem Schirm in fast horizontaler Lage des Schirmes;

Figur 2:

Den Freiarmschirm mit aufgespanntem Schirm in geneigter Position, etwas aufgeschwenkt in der Schwenkebene des Auslegers;

Figur 3:

Den Freiarmschirm mit aufgespanntem Schirm in geneigter Position von hinten gesehen, wobei der Schirm um die Längsachse des Auslegers geschwenkt ist;

Figur 4:

Eine Detailansicht von Mast, Ausleger-Schirmstrebe und Gelenkstrebe, mit dem aufgespannten Schirmtuch;

Figur 5:

Eine Detailansicht von Schirmkrone und Schieber, mit den daran angelenkten Schirmstreben und Stützstreben;

Figur 6:

Die Schirmkrone mit den Schirmstreben und dem Ausleger von oben gesehen in einer Draufsicht;

Figur 7:

Einen Freiarmschirm mit Zugfeder zur Unterstützung des Ausfahrens der Ausleger-Schirmstrebe;

Figur 8:

Einen Freiarmschirm mit Zugfeder zur Unterstützung des Aufspannen des Schirmes.

It shows:

Figure 1:

The free-arm umbrella with the umbrella open in an almost horizontal position of the umbrella;

Figure 2:

The free arm parasol with the parasol open in an inclined position, slightly swung open in the pivoting plane of the boom;

Figure 3:

The free arm parasol with the parasol open in an inclined position seen from behind, the parasol being pivoted about the longitudinal axis of the boom;

Figure 4:

A detailed view of the mast, outrigger umbrella strut and articulated strut, with the open umbrella cover;

Figure 5:

A detailed view of the umbrella crown and slide, with the attached umbrella struts and support struts;

Figure 6:

The umbrella crown with the umbrella struts and the bracket seen from above in a plan view;

Figure 7:

A free arm umbrella with tension spring to support the extension of the outrigger umbrella strut;

Figure 8:

A free arm umbrella with tension spring to support the opening of the umbrella.

The essential elements of this free arm screen are shown in Figure 1. It has a decentralized mast 1, on which a 2 of the shield struts 6 is adjustable in height as a boom 2 via a slide sleeve 3. This Shield strut 2 or this arm 2 is further via an articulated strut 4 hinged at the top of mast 1. The screen cloth 5 is radial in number Umbrella struts 2.6 stretched, for which purpose support struts 7 in the usual way are available, at the ends of a cantilever slide 8 articulated is. However, the screen has no actual umbrella stick. Rather, the Umbrella crown 9 only a downwardly projecting pin 10 is arranged over the the slider 8 is turned over in the open state of the screen. The different Umbrella struts 2.6 are advantageously made from square steel profiles, which are slightly curved, the one shield strut 2 acting as the extension arm 2 acts, is reinforced by a steel profile of larger dimensions is made. Instead of square profiles, circular tubes can also be used or profiles of other cross sections can be used.

The whole screen is essentially the one acting as boom 2 Shield brace 2 worn. Figure 2 now shows how the screen is inclined Can take position. For this purpose, the slide sleeve 3 on the mast 1 is down postponed. So that the slide sleeve 3 in different, finely graduated heights can be locked on the mast 1, it has a spring-loaded locking pin, which in corresponding Engages in locking holes in mast 1. To move the slide sleeve 3 this locking pin can be released, after which the slide sleeve 3 along the Mastens 1 is slidable. Starting from the position as shown in Figure 1 So the slide sleeve 3 was moved down, which is now shown Inclination of the screen. The hinge strut 4 is here in a fixed position hinged to the mast tip 11, but can be as described later also be articulated on the mast 1. So if the sun The peak is reached during the course of the day, the screen is shown as in FIG. 1 used in an almost horizontal position. The sun is leaning against the Horizon, so the shade of the screen can be cast by tilting the screen can be enlarged by inclining the screen as shown in FIG.

In Figure 3 you can now see the free arm umbrella with the umbrella open in another inclined position seen from behind, namely the screen is pivoted about the longitudinal axis of the boom 2. This pivotability is new and allows the umbrella to be much better at the different locations and adjust sun positions. For example, is there a table in the garden that the mast is not placed on that side of the table facing the sun can be, a screen that allows only in the swivel plane of the boom is not inclined to create a shadow cast that really does Covers table. So if in Figure 2 the table is under the umbrella, and the The sun shines in exactly from the left and also because of the advanced evening hour is already low on the horizon, the screen in the picture should continue to counter left shifted. If this is not possible due to the location, it is the umbrella is not useful. It is only when he is so inclined beyond that can be, as shown in Figure 3. Especially in such cases as just now then it is possible to use the umbrella mast 1 in the direction of the sun seen here from the side of the table, so in Figure 2, in which the Sun shines from the left, seen towards the drawing sheet behind or in front of the table, which is there under the umbrella roof. Although in Figure 3 the sun shines in from the left, so the table is behind the mast 1 and the mast 1 is seen from the sun on the right of the table. By Thanks to the new construction, the screen can be swiveled sideways as in Figure 3 can therefore show the shadow cast even when the sun is low and limited space can be set so that the table Sitting people actually sit in the shade of the umbrella. In FIG. 3 the screen is tilted slightly to the left. It is also possible to use the Umbrella in the opposite direction of rotation, i.e. towards the right pivot. This swivel range in the transverse direction can be easily make up about 100 ° or more. The focus of the umbrella itself remains seen along the boom 2 always very close to the effective Swivel axis, so that hardly any larger torques occur in the transverse direction and thus the stability of the free arm screen is guaranteed. The screen can can also be fixed in any transverse position using a locking screw.

FIG. 4 shows a detailed view of mast 1, bracket shield strut 2 and articulated strut 4, with the stretched umbrella cloth 5. On top of the outrigger shield strut 2, a swivel hinge 12 is attached, on which the articulated strut 4 is hinged. Where the boom shield strut 2 the slide sleeve 3 is articulated, there is a swivel joint 13 the cantilever brace 2 ends of a sleeve 14, in which a round rod or fits a bolt 15 which is pivotable here in the plane of the drawing is articulated on two ears 16 protruding from the slide sleeve 3. The The swivel joint 13 has a locking screw 17 with a grip wheel 18. In every desired locking position, this locking screw 17 can be tightened so that it fixes this position. The grip wheel 18 with its approximately Palm-sized diameter allows the locking screw 17 without Tighten tool with sufficient torque. If the boom shield strut 2 is rotated or the screen in the transverse direction is pivoted, the boom shield strut 2 rotates on the one hand Rotation axis of the swivel joint formed by the bolt 15 and the bush 14 13, and on the other hand it pivots about the hinge axis of the pivot hinge 12. The screen cloth 5 lies on the outrigger screen strut 2 as well as on all of them other shield struts 6. It is tensioned by the support struts 7 spread-apart shield struts 2.6. These support struts 7 are on the The underside of the shield struts 2.6 is articulated to articulation elements 19 provided there.

In Figure 5 is a detailed view of the umbrella crown 9 and umbrella stick slide 8 with the umbrella struts 2.6 hinged to the umbrella crown 9, and the to see these supporting struts 7. The is also shown Cable 20, which is elegantly guided here in the interior of the cantilever brace 2 and deflected via the roller 21 and then through a recess in the profile the boom shield strut 2 is guided down to the slide 8. In here shown open state of the screen is the slider 8 over the Pin 10 slipped, which is attached to the underside of the screen crown 9. The slider 8 snaps onto the pin 10 by means of a special, spring-loaded Jack 22 on. If the umbrella is to be folded, it will initiated by loosening the pawl 22 provided on the slide 8, after which the Slider 8 on the pin 10 slips down slightly. Afterwards the cable pull becomes 20 solved, and the slide 8 then moves further down, slips off the Pin 10 and the screen closes completely, after which the slide 8 hanging freely is articulated only at the lower ends of the support struts 7.

Finally, FIG. 6 shows the screen crown 9 with the screen struts 6 and the shield strut 2, which also acts as a boom 2, seen from above in a top view. As you can see here, the boom shield strut 2 is made stronger, because she has to carry the whole umbrella and the bank initiate and hold. From the outside, however, the screen looks extremely simple and straightforward, especially because the boom 2 is not visible at all, but only the mast 1 and the cross strut 4, and of course the umbrella cloth 5, as is clear from FIGS. 1 and 2. Because one of the If the umbrella struts are constructed as a boom, an otherwise manufactured one falls Outrigger away, and at the same time the screen looks more elegant from the outside, because none disturbing linkage around an outside.

Another setting option of the screen can be realized by that not only the slide sleeve 3 on the mast 1 is adjustable in height, but also the sleeve 23, which is arranged on the mast tip 11, and on which the Cross strut 4 is articulated, as shown in Figure 4. If this sleeve 23 is also adjustable in height, in the same or similar manner as that Slider sleeve 3, the entire screen on mast 1 can be adjusted in height become. This is particularly useful when the sun is low.

A particularly advantageous embodiment is shown in FIG. 7. Here is between the height-adjustable slide sleeve 3 and the hinge strut 4 in the In the vicinity of their linkage to the cantilever umbrella strut, a tension spring 24 used. Now that the umbrella has been cleared, that is its outrigger umbrella strut retracted, this tension spring is tensioned. For setting up the It is therefore only necessary to open the outrigger somewhat swivel, and the extension of the boom continues by virtue of this Tension spring by itself. The slide sleeve 3 is from its lower position when the boom shield strut 2 is retracted along the decentralized mast 1 to pulled up in the area of their locking position. Now she just has to go little effort moved into the desired end position and locked there become.

Furthermore, it is particularly advantageous if, as shown in FIG. 8, also between at least one support strut 7 in the region of its articulation to the Shield strut 2 and the shield strut 2 itself in the region of their articulation to the Umbrella crown 9 a tension spring 25 is inserted. In a not shown here Variant can be one or more tension springs in the same way between the other support struts 7 and shield struts 6 can be installed. This tension spring as shown here as an example helps to open the screen cloth 5. When Extending the boom shield strut 2, the shield remains initially closed and due to the geometry of the umbrella rod, the tension spring 25th curious; excited. The screen is secured in this closed position. After this The fuse is now released from this tension spring 25 by itself spanned by the umbrella stick 8 from its position folded umbrella by pivoting the support strut 7 to the Umbrella strut 2 by force of this tensioned spring 25 in the area of it Locking position pulled against the umbrella crown 9 down. You pull at the end something else on the cable 20, so the umbrella stick slide 8 snaps in his End position and the screen cloth 5 is stretched.

Folding the canopy and retracting the outrigger canopy strut 2 is extremely simple despite the acting spring forces. With little The canopy can be exerted after releasing the locking mechanism of the cane slide 8 can be closed first, which is done simply by grabbing one Umbrella strut 6 is closed, the tension spring 25 being tensioned further. Then the slide sleeve 3 is unlocked on the mast and on the mast 1 against the acting spring force pushed down until the boom shield strut 2 gripped can be and can be pivoted towards the mast 1. In the retracted position of the boom shield strut 2 is finally secured.

The springs 24, 25 can be steel springs or gas springs, and their Spring forces are to be interpreted in such a way that the forces acting on the screen due to Collapse gravity and retract the boom a little more than neutralized so that the glider with a slight excess of force slowly opens. Conversely, the screen can therefore be closed with little effort and the boom shield strut can be retracted.

Overall, this cantilever offers the simplest and most user-friendly Construction a hitherto unknown variability in terms of its adjustment options in height, lateral and longitudinal inclination, as well as a unique comfortable operation, which thanks to the spring force used only one requires very little effort.

Claims (9)

1. Free-arm shade with radial shade ribs (6), support ribs (7) attached to the latter, and a shade rod slide (8) that is freely attached to the support ribs, as well as a decentral pole (1) standing outside the shade, whereby one of the shade ribs is constructed as a side arm (2), which is vertically displaceably attached to pole (1) by its outer end, and is connected to pole tip (11) on its top side by means of an articulated rib (4), characterised in that this shade rib (2) has a pivot joint (13) between the edge of the shade fabric and pole (1), and articulated rib (4) is connected to shade rib (2) via a pivot hinge (12) in such a way that this shade rib (2) can be pivoted around the axis between pivot joint (13) and pivot hinge (12).
2. The free-arm shade of claim 1, characterised in that a tension spring (24) is deployed between the vertically adjustable sliding sleeve (3) and the articulated rib (4) in the vicinity of where the latter is connected to the side arm-shade rib (2), and, when the shade is opened, sliding sleeve (3) is pulled upwards by virtue of the spring force of tension spring (24), out of the position it occupies when side arm-shade rib (2) is retracted, and along decentral pole (1) into the region of its blocking position.
3. The free-arm shade of one of the preceding claims, characterised in that, between at least one support rib (7) in the vicinity of where the latter is connected to shade rib (2,6) and shade rib (2,6) itself in the vicinity of where the latter is connected to shade crown (9), a tension spring (25) is deployed, which, when the shade is opened, moves shade rod slide (8) upwards by virtue of its spring force, out of its position when the shade is closed, towards shade crown (9) and into the vicinity of its blocking position as support rib (7) is moved towards shade rib (2,6).
4. The free-arm shade of one of claims 2 or 3, characterised in that the tension springs are steel springs.
5. The free-arm shade of one of the preceding claims, characterised in that the tension springs are gas springs.
6. The free-arm shade of one of the preceding claims, characterised in that pivot joint (13) can be blocked in varying rotated positions by means of a clamping screw (17).
7. The free-arm shade of one of the preceding claims, characterised in that pivot joint (13) comprises a collar (14) and a bolt (15) that fits inside it, with the wall of the collar being pierced by a clamping screw (17) with a grip handle (18).
8. The free-arm shade of one of the preceding claims, characterised in that all the shade ribs (6) are curved square profiles, with the shade rib (6) that functions as side arm (2) being of a stronger design than the other shade ribs (6).
9. The free-arm shade of one of the preceding claims, characterised in that the articulated rib (4) is vertically displaceably attached to pole (1) by means of a sliding sleeve (23).

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