EP1820416A1 - Roof-like screen - Google Patents

Abstract

The protective screen has two changeable screens (1,2) and is roof like. One screen is arranged adjacent to another screen .The distance (f1) from the common ground level (8) to the arm point (G*) of one screen in the closed condition is 98 percent. The distance (f2) from the common ground level (8) to the arm point (G*') of another screen in the closed condition is 102 percent.

Description

The invention relates to a roof-like shield having at least a first convertible screen and at least a second convertible screen, wherein each of the first screen adjacent to the second screen is arranged, wherein the screens each comprise a mast, a driven linkage and a foldable membrane, wherein in the maximum folded state of the screens, the membrane adjacent umbrellas are arranged vertically above one another and horizontally overlapping in their edge regions, wherein the linkage comprises at least three articulated arms, each articulated at an articulation point on the mast inner arm portion and a radially thereto away from the mast outwardly outer arm portion having an arm tip, wherein the outer arm portion is pivotally connected to a support rod which is mounted below the pivot point of the inner arm portion at a pivot point on the mast, and wherein the inner arm portion in a An articulation point is pivotally connected to a drive strut, which is mounted above the articulation point of the inner arm portion of a mast longitudinally movable linkage drive.

Such a shield is already known WO 89/00225 and serve as sun or rain protection. By folding the membrane, the screens can be brought from an open to a closed state, wherein the transfer can be carried out by means of the linear drive. The known shield comprises a plurality of adjacent screens which are arranged in raster-shaped rows and columns next to one another, so that the edges of the membrane in the opened state abut each other approximately. However, the known shields have the disadvantage that rain can penetrate at the edges of the individual umbrellas.

For bridging a corner of an angular shield construction looks like WO 89/00225 known arrangement additional screens before, whose membrane is lower or higher than that of the other umbrellas and these overlap in the region of the corner. Due to the overlapping of the umbrellas, rain or solar radiation can be effectively shielded in these corner areas. However, due to the different heights of the individual screens, in particular in the closed state of the screens, an unaesthetic appearance results.

The object of the invention is in contrast to propose a shield, the screens have a uniform appearance in the closed state and ensure a large rain tightness in the open state.

This object is achieved in that the distance from a common ground level to the arm tip of the first screen in the closed state is at least 98%, but at most 102% of the distance from the common ground level to the arm tip of the second screen in the closed state, and that at least two lengths of the elements: outer arm sections, inner arm sections, support bars and mast heights from the ground level to the point of articulation of the support bars on the mast, for adjacent umbrellas are respectively different and in the range of the following length ratios: a1 / a2 from 1.0 to 1.06; b1 / b2 from 0.93 to 1.00; c1 / c2 from 0.95 to 1.05; d1 / d2 from 1.0 to 1.05; where a1, a2 is the length of the outer arm sections, b1, b2 is the length of the inner arm sections, c1, c2 is the length of the support bars, and d1, d2 are the mast heights from ground level to the point of articulation of the support bars on the respective mast in the maximum open state for two adjacent screens mean.

The fact that the distances of the arm tips of the adjacent screens from a common floor level in the closed state differ by a maximum of 2% creates the impression that they are two identical umbrellas, which is perceived as aesthetically pleasing. At the same time it is ensured in the shield according to the invention that in the open state, the membrane of adjacent umbrellas overlap each other to ensure the greatest possible protection against sunlight and rain. The edges of the membrane of adjacent screens are thus in the open state in different horizontal planes (height levels). This requires a different construction of the linkage of adjacent screens. Here, a plurality of embodiments is conceivable, in which, however, always at least two of the above-mentioned elements for adjacent screens differ, so that the ratios of the lengths of mutually corresponding elements of adjacent screens are in said areas. The inventive shortening or lengthening of the elements of the second screen with respect to those of the first screen amount to less than or equal to a few percent, but are crucial to realize an overlap of the membrane of adjacent screens in the open state with a uniform appearance of the screens in the closed state.

Existing systems can easily be retrofitted by equipping each second screen of the existing system with appropriately dimensioned arm sections and support posts.

In a preferred embodiment, the length of the support bar of the first screen is less than the length of the support bar of the second screen. The pivot point of the support bar of the first screen on the mast is then higher than that of the second screen to ensure an overlap of the membrane.

Preferably, the mast height from the ground level to the point of articulation of the support bar of the first screen is at least 102.5%, but not more than 104.5% of the mast height from the ground level to the point of articulation of the support bar of the second screen.

In a further specific embodiment of the shield according to the invention, the length of the outer arm portion of the first screen is at least 100.5%, but at most 104.0% of the length of the outer arm portion of the second screen.

In addition, it may be advantageous if the length of the inner arm portion of the first screen is at least 96%, but not more than 98% of the length of the inner arm portion of the second screen. In this way, for example, an increase in the linkage can be compensated by extending the support rod.

In a preferred embodiment of the shield according to the invention, the membrane of the screens in the clamped state on a polygonal, in particular a rectangular, preferably a square outer contour.

This is particularly advantageous when the membrane of the umbrellas have a 4-fold symmetrical outer contour, and the screens each have 4 diagonal arms in the 4 diagonal directions and 4 center arms in the offset by 45 ° to the directions of the center of the membrane, the lengths of the diagonal arms are chosen so that when overlapping adjacent umbrellas in the edge region of the Membrane the ends of the diagonal arms of diagonally opposite screens do not touch. In this way, on the one hand, a large-area overlap can be realized, on the other hand it is possible to construct a shield with a plurality of overlapping umbrellas, wherein only umbrellas with two different height levels of the membrane are needed. The 4-fold symmetrical outer contour of the screens is particularly suitable for rectangular shields.

In a particularly preferred embodiment of the shielding according to the invention, a passive arm is articulated on the outer arm sections to the left and right in each case, which extends at an angle from the outer arm section to the edge region of the membrane when the shield is opened. In this way, the edge length of the membrane can be shortened and an approximately square contour of the membrane edge can be realized. This in turn makes it possible to increase the distance of the masts of adjacent screens with overlapping membranes from those of shields without passive arms, so that the shield according to the invention can cover a larger area. At the same distance of the screen masts, the embodiment of the invention has a greater overlap than a comparable shield without passive arms.

A special embodiment provides that at least some of the screens are rotatable about a vertical axis of rotation extending through the mast. These rotatable screens can be used with appropriate shaping of the membrane for the purpose of ventilation. The umbrella arms can be part of the ventilation device. Thus, both the ventilation and the shadow can be effected by the screens according to the invention.

In a preferred embodiment, the linkage drive comprises a telescopic linear drive running in the mast, which is preferably spindle-driven or hydraulically moved.

In a specific embodiment, lighting elements and / or loudspeakers and / or climate-influencing devices are provided on the mast at a distance from the ground, which devices are preferably each mounted at a certain same height above the common ground level. As a result, a lighting and / or sound of the covered space can be realized in a visually appealing form.

Further advantages of the invention will become apparent from the description and the drawings. Likewise, the features mentioned above and those listed further can be used individually or in any combination. The embodiments shown and described are not to be understood as exhaustive enumeration, but rather have exemplary character for the description of the invention.

Fig. 1

eine schematische Darstellung der Anordnung der einzelnen Elemente einer erfindungsgemäßen Ausführungsform mit zwei Schirmen mit geöffneten und geschlossenem Gestänge;

Fig. 2a

eine maßstabsgetreue Darstellung eines Diagonalarms des ersten Schirms einer bevorzugten Ausführungsform der erfindungsgemäßen Abschirmung;

Fig. 2b

eine maßstabsgetreue Darstellung eines Diagonalarms des zweiten Schirms einer bevorzugten Ausführungsform der erfindungsgemäßen Abschirmung; und

Fig. 3

eine schematische Aufsicht einer erfindungsgemäßen Abschirmung mit vier Schirmen im geöffneten Zustand.

Show it:

Fig. 1

a schematic representation of the arrangement of the individual elements of an embodiment according to the invention with two screens with open and closed linkage;

Fig. 2a

a true to scale representation of a Diagonalarms the first screen of a preferred embodiment of the shield according to the invention;

Fig. 2b

a true to scale representation of a Diagonalarms the second screen of a preferred embodiment of the shield according to the invention; and

Fig. 3

a schematic plan view of a shield according to the invention with four umbrellas in the open state.

The screens 1, 2 shown in Fig. 1 each comprise a mast 3, 3 ', to each of which a linkage is attached. In the side view of the linkage shown are shown facing arms of the linkage in the open state, while the opposite arms of the linkage are shown in the closed state. The arms of the screens 1, 2 each comprise an inner arm section 4, 4 ' with a length b1, b2 and an outer arm section 5, 5' with a length a1, a2. The inner arm portions 4 are hinged to the masts 3 of the respective screen 1, 2. At the inner arm sections 4, 4 ', the outer arm sections 5, 5' in the articulation points F, F 'are articulated radially outwardly away from the masts 3, 3'. The shown, facing each other outer arm portions 5, 5 'of the two screens 1, 2 overlap in the open state in the region of the arm tip G, G' , the arm tip G of the first screen 1 above the arm tip G 'of the second screen 2 to lie comes. The offset of the heights of the arm tips G, G 'in the open state thereby moves in the range of 0.5 meters to a few meters. The positions G *, G * 'of the arm tips in the closed state, however, are at the same height level, so that the distance f1, f2 of the positions G *, G *' of the arm tips to a common ground level 8 in the closed state for both screens 1, 2 are equal to a few millimeters. When considering the spacings of the elements of the overlapping screens, a uniform (level or averaged) ground level 8 is assumed here. However, the umbrellas themselves can also be set up on an uneven surface. The outer arm portions 5, 5 'are each pivotally connected to a support rod 6, 6 ' of lengths c1, c2 , which are attached to articulation points C, C 'of the masts 3, 3'. In addition, the inner arm portions 4, 4 'in articulation points D, D' with drive struts 7, 7 'are connected, above the articulation points B, B' of the inner arm sections 4, 4 'at a pivot point A, A' at one in the Mast 3, 3 'longitudinally movable linkage drive (not shown) is mounted.
2a, 2b show a concrete embodiment of a Diagonalarms 9 of the first screen 1 and a Diagonalarms 9 'of the second screen 2 of a preferred inventive shield with the corresponding dimensions of the individual elements. In this preferred embodiment, the length c1 of the support rod of the first screen 1 is smaller than the length c2 of the support rod of the second screen 2. The distance d1 of the Anchor point C of the first screen to the common ground level 8 is greater than the corresponding distance d2 of the Anlenkpunkts C 'of the second screen 2. By this raising the pivot point C of the support rod 6 of the first screen 1 is at the same distance f1, f2 of the arm tips to the ground level 8 in the closed state of the screens a different height of the arm tips G, G 'achieved in the open state, so that the membrane 10 , 10 ' of the two screens overlap in this area. However, by simultaneously extending the outer arm portions 5 of the first screen 1 and / or shortening the inner arm portions 4 of the first screen 1 from those of the second screen 2, it is also possible for the heights of the hinge points C, C 'of the support rods 6, 6' of the two Bring umbrellas 1, 2 back to a common height level (not shown).

In the shielding according to the invention, the lengths a1, a2, b1, b2, c1, c2, d1, d2 are coordinated so that the distances f1, f2 of the arm tips in the closed state of the common ground level 8 are approximately equal, so that the viewer closed state of the two umbrellas 1, 2 gives the impression that it is two identical umbrellas.

The embodiment shown in FIGS. 2a, 2b represents only a very specific example. There are many possibilities for matching the lengths of the individual components of the linkage. However, it is not necessary to provide different lengths of corresponding elements for the two screens 1, 2 differently (as in the example of Fig. 2a, 2b). It is only decisive that always at least two mutually corresponding lengths of the two screens 1, 2 differ from each other and their relationship to one another in the above-mentioned areas. The exact ratios of the lengths of corresponding components depends inter alia on the desired height offset of the arm tips G, G 'in the open state of the screens 1, 2 and on the distance of the screens 1, 2 to each other and can be calculated with the aid of simulation software.

The specified ratios of the lengths of the different components of adjacent screens apply to both central arms 11, 11 ' and for the diagonal arms 9, 9'. However, the aspect ratios of the individual sections of the diagonal arms and the center arms may differ within the ranges indicated.

Fig. 3 shows a plan view of a shield according to the invention with four screens in the open state. The shield according to the invention comprises in each case two first screens 1 and two second screens 2. The membranes 10, 10 'of the screens 1, 2 have an almost square outer contour, so that a rectangular shielding can be realized easily. This is made possible, in particular, by additional passive arms 12, 12 ' which are articulated on the diagonal arms 9, 9' and center arms 11, 11 'on the left and on the right and on opening the screens 1, 2 at an angle from the outer arm portion to the edge area of the Membrane 10, 10 'extends. As a result, a reduction of the edge length of the membrane 10, 10 'and thus a minimization of the diaphragm support values is achieved. The first screens 1 are respectively arranged adjacent to two second screens 2, so that the first screens 1 are diagonally opposite each other and almost touching the arm tips of arm portions facing each other. In this case, the membrane 10 of the first screens overlap the membrane 10 'of the second screens in the edge region. Overall, a shield is formed, which has only a small star-shaped slot 13 at the corners of the diagonal arms and, despite a uniform visual appearance in the closed state ensures optimized protection against sun and rain.

LIST OF REFERENCE NUMBERS

1

first screen

2

second screen

3, 3 '

mast

4, 4 '

inner arm section

5, 5 '

outer arm section

6, 6 '

support staff

7, 7 '

spur stay

8th

ground level

9.9 '

Diagonalarm

10, 10 '

membrane

11, 11 '

center arm

12, 12 '

Passivarm

13

slot

A

Connecting point of the drive strut on the mast of the first screen

A '

Connecting point of the drive strut on the mast of the second screen

B

Point of articulation of the inner arm section on the mast of the first screen

B '

Point of articulation of the inner arm section on the mast of the second screen

C

Point of articulation of the support rod on the mast of the first screen

C '

Point of articulation of the support rod on the mast of the second screen

D

Link point of the drive strut to the inner arm portion of the first screen

D '

An articulation point of the drive strut to the inner arm portion of the second screen

F

Anchor point of the support rod on the outer arm portion of the first screen

F '

Anchor point of the support rod on the outer arm portion of the second screen

G

Arm tip of the first screen in the open state

G'

Arm tip of the second screen in the opened state

G*

Arm tip of the first screen in the closed state

G*'

Arm tip of the second screen in the closed state

a1

Length of the outer arm portions of the first screen

a2

Length of the outer arm portions of the second screen

b1

Length of the inner arm portions of the first screen

b2

Length of the inner arm portions of the second screen ten

c1

Length of the support bars of the first screen

c2

Length of the support bars of the second screen

d1

Mast height of the first screen

d2

Mast height of the second screen

f1

Distance from the floor to the arm tip of the first screen in the closed state

f2

Distance from the floor to the arm tip of the second screen in the closed state

Claims (11)

Roof-like shield having at least a first convertible screen (1) and at least one second convertible screen (2), wherein in each case the first screen is arranged adjacent to the second screen,
wherein the screens each comprise a mast (3, 3 '), a driven linkage and a foldable membrane (10, 10'), wherein in the maximum unfolded state of the screens (1, 2) the membrane (10, 10 ') of adjacent screens (1, 2) are arranged vertically above one another and horizontally overlapping in their edge regions,
wherein the linkage comprises at least three articulated arms each having an inner arm portion (4, 4 ') hinged to the mast (3, 3') at an articulation point (B, B ') and an outer linkage hinged radially outwardly from the mast Arm portion (5, 5 ') having an arm tip (G, G'),
the outer arm section (5, 5 ') being articulated to a support bar (6, 6') which is located below the pivot point (B, B ') of the inner arm section (4, 4') at the pivot point (C, C ') attached to the mast (3, 3 '), and
the inner arm section (4, 4 ') being articulated at a pivot point (D, D') to a drive strut (7, 7 ') which is above the pivot point (B, B') of the inner arm section (4, 4 '). ) is mounted on a boom drive movable in the mast (3, 3 '),
characterized,
that the distance (f1) from a common ground level (8) to the arm tip (G *) of the first screen (1) in the closed state at least 98%, but at most 102% of the distance (f2) from the common ground level (8) to the arm tip ( G * ') of the second screen (2) is in the closed state, and
that at least two lengths of the elements: outer arm portions (5, 5 '), the inner arm (4, 4'), support bars (6, 6 ') and the mast height (d1, d2) to the articulation point (from ground level (8) C C ') of the support rods on the mast (3, 3'), for adjacent screens (1, 2) are each different and are in the range of the following length ratios: a1 / a2 from 1.0 to 1.06; b1 / b2 from 0.93 to 1.00; c1 / c2 from 0.95 to 1.05; d1 / d2 from 1.0 to 1.05; in which
a1, a2 is the length of the outer arm sections,
b1, b2 the length of the inner arm sections,
c1, c2 the length of the support rods and
d1, d2 mean the mast heights from the ground level to the articulation point (C, C ') of the support rods on the respective mast in the maximum open state for two adjacent screens. Shielding according to claim 1, characterized in that the length c1 of the support bar (6) of the first screen (1) is smaller than the length c2 of the support bar (6 ') of the second screen (2). Shielding according to one of the preceding claims, characterized in that the mast height (d1) from the ground level (8) to the articulation point (C) of the support bar (6) of the first screen (1) at least 102.5%, but at most 104.5% of the mast height (d2 ) from the ground level to the point of articulation (C ') of the support bar (6') of the second screen. Shielding according to one of the preceding claims, characterized in that the length (a1) of the outer arm portion (5) of the first screen (1) at least 100.5%, but at most 104.0% of the length (a2) of the outer arm portion (5 ') of the second Umbrella (2) is. Shielding according to one of the preceding claims, characterized in that the length (b1) of the inner arm portion (4) of the first screen (1) at least 96%, but at most 98% of the length (b2) of the inner arm portion (4 ') of the second Umbrella (2) is. Shielding according to one of the preceding claims, characterized in that the membranes (10, 10 ') of the sheds (1, 2) in the clamped state have a polygonal, in particular a rectangular, preferably a square outer contour. Shielding according to one of the preceding claims, characterized in that the membranes (10, 10 ') of the sheds (1, 2) have a 4-fold symmetrical outer contour, that the sheds (1, 2) each have 4 diagonal arms (9, 9'). ) in the 4 diagonal directions as well as 4 center arms (11, 11 ') in the directions of the lateral centers of the membranes (10, 10') offset by 45 °, and in that the lengths of the diagonal arms (9, 9 ') are chosen such that in the case of overlapping of adjacent screens (1, 2) in the edge region of the membrane (10, 10 '), the ends of the diagonal arms (9, 9') of diagonally opposite screens (1, 2) do not touch one another. Shielding according to one of the preceding claims, characterized in that a passive arm (12, 12 ') is hinged to the outer arm sections (5, 5') on the left and right, which at opening of the screen (1, 2) at an angle from the outer arm portion (5, 5 ') away to the edge region of the membrane (10, 10') extends. Shielding according to one of the preceding claims, characterized in that at least some of the sheds (1, 2) are rotatable about a vertical axis of rotation extending through the mast (3, 3 '). Shielding according to one of the preceding claims, characterized in that the linkage drive in the mast (3, 3 ') extending telescopic linear drive comprises, which is preferably spindle-driven or hydraulically moved. Shielding according to one of the preceding claims, characterized in that provided on the mast (3, 3 ') at a distance from the floor lighting fixtures and / or speakers and / or climate influencing facilities, which are preferably mounted in each case at a certain same height above the common ground level ,

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