WO2010130729A1

WO2010130729A1 - Free-standing umbrella having a cooling apparatus

Info

Publication number: WO2010130729A1
Application number: PCT/EP2010/056448
Authority: WO
Inventors: Klaus Becher
Original assignee: Becher Textil- Und Stahlbau Gmbh
Priority date: 2009-05-13
Filing date: 2010-05-11
Publication date: 2010-11-18
Also published as: DE102009021186A1; EP2429329A1; US20120103376A1

Abstract

In order to use a free-standing umbrella, in particular a garden umbrella, patio umbrella or the like, which has a canopy (1) supported by a central or eccentric upright tube (3), in countries having hot climates, a cooling apparatus which is integrated into the upright tube is provided, comprising a liquid connection (14) disposed in the bottom region of the upright tube (3), a liquid feed line (15) extending along the upright tube (3), and at least one spray nozzle (16) which is disposed underneath the canopy (1), is connected to the feed line (15), and allows liquid that is fed at a defined pressure by way of the feed line (15) to be sprayed in small droplets such that the droplets evaporate at a certain temperature in the region underneath the canopy (1).

Description

UMBRELLA WITH COOLING DEVICE

The invention relates to a beach umbrella, in particular parasol, garden umbrella, patio umbrella or the like, which has an umbrella roof carried by a centric or eccentric standpipe.

In such a screen, the canopy can be fixedly mounted on the standpipe of the column without being foldable or collapsible. In other types of umbrellas, the canopy can be made foldable or collapsible, with a slidable along the stand tube runner is usually provided with the hinged to roof bars of the canopy support struts are hinged.

Umbrellas z. B. are used in the catering and hotel industry, usually have larger umbrella diameter of 4 m and beyond and should be suitable for all weather conditions and protect from sun, wind and rain. It is also desirable to make the stay of people under the umbrella as comfortable as possible. For this purpose, it is known to equip screens with additional equipment, such as radiant heaters and lights.

The present invention has for its object to develop a screen so that it can also be used in countries with hot climate, especially in subtropical, tropical and equatorial zones.

The object is achieved in that a cooling device is integrated in a stand of the type mentioned, with a lower portion of the standpipe arranged liquid connection, a liquid inlet extending along the standpipe and at least one arranged below the umbrella and connected to the supply line spray nozzle, with the supplied under a certain pressure via the supply line liquid in small droplets is sprayed, so that the droplets at a certain temperature in the range evaporate below the screen roof.

Due to the evaporation of the liquid sprayed or atomised below the canopy, evaporative cooling of the surrounding air takes place. By designing the spray nozzle and choosing the pressure of the liquid to be sprayed, the size and distribution of the droplets in the area below the canopy can be adjusted. Depending on the air temperature, the evaporative cooling of the surrounding air can then be regulated. The size and distribution of the droplets sprayed through the at least one nozzle, depending on the air temperature, must be such that the droplets in the upper area of the space below the canopy evaporate to allow falling droplets to contact the person or objects under the umbrella avoid.

The cooling device is preferably designed so that drinking water can be used as the liquid. In particular, the at least one spray nozzle can be designed so that the drinking water can be supplied under a relatively low pressure of between 3 and 100 bar, preferably 4 and 10 bar, and the liquid connection is thus suitable for connection to an external drinking water line. Any excessively low pressure may be increased by means of an upstream boost pump, while any excessively high pressure may be reduced by means of an intermediate reduce valve. Any hygienic and operational (coarse particles,

Kalkansatz) Obstacles, which may consist in the fact that the operation of the cooling device externally fed water from a medical or technical point of view is unsuitable, can be met by upstream filter systems, such as. B. in hospitals and hospitals.

In a preferred embodiment of the invention, a centric distribution system of the liquid to be sprayed is provided around the standpipe of the umbrella. For this purpose, a ring distribution system for the liquid around the standpipe can be arranged below the canopy, which is connected to the supply line and has a plurality of distributed around its circumference branch lines, which are each connected to a spray nozzle.

The ring distribution system can be arranged in larger umbrellas with appropriately sized standpipe also within the standpipe. Under certain circumstances, the spray nozzles may be at least partially within the standpipe.

In this way, an approximately uniform spraying of the liquid through the spray nozzles is achieved with a screen substantially rotationally symmetrical about the standpipe. Of course, in the case of asymmetrical screen construction, an optimal space spraying can take place by means of a suitable arrangement and length of the branch line.

In a preferred embodiment, the ring distribution system has an annular channel in which the liquid feed line opens and from which the branch lines emanate.

The ring distribution system can for this purpose have two abutting ring distribution consoles, wherein the annular channel is formed as an annular groove in the other ring distribution panel facing end side of at least one of the ring distribution consoles. To seal the annular channel between the two

Ring distribution panels may conveniently be arranged on both sides of the channel annular grooves for receiving O-rings.

In a particularly simple embodiment, the grooves for the O-rings are formed in the relevant end face of one of the ring distribution consoles the channel 'for the liquid and in the opposite end face of the other ring distribution console.

In a foldable or collapsible umbrella, which has a slidable along the stand tube runner, are articulatedly connected to the roof bars of the canopy support struts, it is expediently provided that the screen construction designed and the ring distribution between runners and canopy is arranged so that Closing the screen in the folded or folded position is not hindered, d. that is, no part of the cooling device needs to be removed or removed for the closure of the screen. In particular, the spray nozzles can be arranged between the support struts, so that they come to lie on folding the screen between them and thereby the screen can be closed as far as a screen without the ring distribution system according to the invention with the spray nozzles.

In such a screen, the runner for lifting or locking in its upper position may be connected to a support rod or a tether, which runs above the rotor along the standpipe. By pulling on the support rod or the tether of the runner can be raised and locked by locking the support rod or the tether in its upper position. Such a tether may be attached at one end to the rotor or above the rotor on the standpipe and be guided over one or more rollers. In such a screen, the ring distribution system is also so between the rotor and the support struts arranged so that a complete closing of the screen in the folded or collapsed position is not hindered.

In another embodiment of the umbrella, the roof bars may be hinged to a telescopically displaceable relative to the standpipe, carrying a crown stick, crown and runners arranged when opening and closing the screen in a row at least one above the rotor, at one end hinged to the Standpipe and at the other end articulated with a roof bar connected deflecting strut move in opposite directions. In this embodiment, the ring distribution system according to the invention between the support strut and the at least one deflecting strut is arranged so that a complete closing of the screen in the folded or collapsed position is not affected.

In a particularly advantageous development of such a umbrella, the runner for locking in its upper position at one end of a preferably a support rod or a tether having first holding device releasably fastened, the other end is attached to the crown or at the top of the movable floor part. The ring distribution system expediently has a passage opening or a lateral slot through which the holding rod or the tether is movably guided.

In a further development of such a screen construction, in particular for large umbrellas, it is advantageous to provide a second retaining device or holding rope having a holding device, which is fastened at one end to the upper region of the standpipe and at the other end with the rotor detachably fastened. This second holding device is used after attachment of the first holding device on the rotor for subsequent tightening of the membrane of the canopy. Conveniently, the second support rod or the second tether over a Tension lever lock set on the runner. Likewise, the first support rod or the first tether can be fixed via a tension lever lock on the runner.

When using a second support rod or a second tether this can be guided by a second passage opening or a second lateral slot in the ring distribution system movable.

In a particularly advantageous embodiment of the invention, the liquid supply line is arranged so that it extends within the column. It then expediently emerges from the standpipe below an outer ring distribution system and is connected to the annular channel via an external connection. The fluid connection is arranged outside at the bottom of the standpipe or below the standpipe.

In an above-mentioned umbrella with counter-rotating crown and runner and a crown carrying, telescopically in the standpipe extending from above into the floor part, the standpipe and / or the floor part are profiled so that they at least one existing between the floor part and the standpipe Have along the standpipe extending chamber through which the liquid supply line passes.

In an advantageous embodiment of the invention, four to sixteen spray nozzles are arranged around the standpipe at approximately equal angles between adjacent spray nozzles. This ensures a largely uniform spraying of the liquid around the standpipe of the umbrella. It may also be possible to use more than sixteen spray nozzles.

The spray nozzles have at their end atomizer nozzles, which are aligned to the canopy so that they form an angle of 0 ° to 45 ° relative to the horizontal. Optionally, the direction of the atomizer nozzles can also point upwards over an angle of 45 °. In some circumstances, the Atomizer nozzles directed downwards.

More preferably, the direction of the axis of the spray is not intended to be directed in a direction below the periphery of the canopy, so that the cooling effect by adiabatic evaporation takes effect substantially within the bounded by the canopy and a limited by the periphery of the canopy horizontal space limited space. In positive terms, the spraying direction of the spray nozzles should be set to the outer edge of the canopy or above it. The spray angle is thus to be selected depending on the height of the arrangement of the spray nozzles relative to the outer edge of the screen.

More preferably, the range of the spray is to be set so that a wetting of the canopy is largely avoided.

As spraying nozzles come into question, through which the water is expelled under high pressure with division into small droplets. Alternatively, other spray systems, such. B electrostatic spray systems that do not require high pressure can be used. The spraying range of the spraying system should be at least two thirds of the shield radius or the distance between the shield axis and the outer edge of the canopy.

Depending on the outside temperature and humidity, the amount of spray sprayed through the entirety of the spray nozzles may be between 1 and 5 liters per square meter of the area and hour covered by the canopy.

According to the invention it is possible to create a climate below the screen, which has an up to 1O ⁰ C lower temperature than the environment without the clothing is wetted by situated under the screen people. The

Atomizing nozzles may be formed so that the liquid sprayed through them preferably forms a conical or fan-shaped cloud. In some circumstances, the cloud may be in Depending on the design of the atomizer nozzles also have a different geometry.

The problem underlying the invention is achieved by a

Method for cooling the air below the canopy of a beach umbrella, in particular garden umbrella, patio umbrella or the like, wherein the canopy is supported by a centric or eccentric standpipe, achieved in that the

Liquid is sprayed or atomized below the canopy in small droplets, so that they evaporate at a certain temperature in the area below the canopy.

The liquid brought to the evaporation is preferably supplied to the screen in the lower region of the standpipe or below the standpipe, guided along the standpipe to an area below the canopy and sprayed or atomized from there in directions distributed around the circumference of the standpipe.

In an advantageous development of the method, the direction in which the liquid is sprayed or atomized forms an angle between 0 ° and 45 ° with respect to the horizontal, directed towards the canopy.

A preferred embodiment of the invention will be described in more detail below with reference to the drawing.

In the drawing show:

Fig.l a side view of a screen in the open position,

Fig. 2 shows details of the screen shown in Figure 1 on a larger scale and

3 is a cross-sectional view along the line III-III in Figure 2. Fig. 1 shows essentially an overall view of the considered embodiment of a standing screen. In this umbrella, the canopy 1, of which only the roof bars 2 are shown, supported by a centric standpipe 3.

It is a collapsible umbrella, which has a slidable along the standpipe 3 runners 4, with the hinged to the roof bars 2 of the canopy 1 support struts 5 are hinged.

As is also apparent from Fig. 1, the hinged to the roof bars 2 crown 6 of the screen is supported by a stick part 7, which is guided telescopically in the standpipe 3. By means of at one end hingedly connected to the standpipe 3 and at its other end hingedly connected to a respective roof bar 2 deflecting struts 8 crown 6 and runners 4 move in opposite directions when opening and closing the screen.

To lock the rotor 4 in its upper position, a parallel to the standpipe 3 extending first support rod 9 is provided, which is fixed at its upper end to the crown 6 and at its lower end via a first Spannhebelverschlύss 10 on the rotor 4 is detachably fastened.

For subsequent tensioning of the (not shown in the drawing) membrane of the canopy 1, a second support rod 11 is provided, which is attached at its one end to the upper portion of the standpipe 3 and at its other end via a second clamping lever lock 12 on the rotor 4 releasably fastened is.

The standpipe 3, which is in the form of a metal tube, is inserted into a receiving quiver 13, likewise designed as a metal tube, which is connected in its lower region (not shown in the drawing) to an umbrella stand or fixed in the base region. 1, a cooling device is integrated, which has a liquid connection 14 arranged in the lower region of the standpipe 3, a liquid feed line 15 running along the standpipe 3 and a ring distribution system 17 connected to a plurality of spray nozzles 16.

The standing screen shown in FIG. 1 is provided with a suitable lighting device 18 in addition to the cooling device. It may also be equipped with other ancillary equipment, such as heating and sound transmission systems.

The cooling device is shown in more detail in FIG. 2.

Fig. 2 shows a broken section of the area of the pedestal 3, on or in which the cooling device is arranged.

The liquid connection 14 arranged outside the standpipe 3 in its lower region is fastened by means of a torque support 19 to the receiving quiver 13 for the standpipe 3. It is connected via a designed as a quick coupling coupling device 20 with an external drinking water pipe 21. The coupling device 20 is connected upstream of a mechanically or electromechanically actuated shut-off / control valve 22, with which the drinking water supply can be shut off or regulated.

The liquid connection 14 is connected via an adapter 23 and an angle screw 24, preferably in cutting ring design, with the liquid supply line 15 leading to the ring distribution system 17.

As shown in the upper part of Fig. 2, the flowing within the standpipe 3 liquid supply line 15, which preferably consists of stainless steel, opens into the ring distribution system 17. This consists of two adjacent annular distributor brackets 25 and 26, which Compression fittings 27 are connected together.

The attached ring distribution panels 25 and 26 are fixed to the standpipe by screws 28.

In the upper ring manifold bracket 25, an annular channel 29 is formed on its lower ring manifold panel 26 opposite end face. For sealing the annular channel 29 between the two

Ring distributor panels 25 and 26 has the lower

Ring distributor console 26 at its upper ring distributor console 25 opposite end side at both

Side of the channel 29 annular grooves 30 for receiving preferably closed O-rings on.

As can be further seen from Fig. 2, the liquid supply line 15 passes below the ring distribution system 17 through an opening 31 out of the standpipe 3 and is connected via an angle screw 32, preferably a swivel or swivel in Schneidringausführung, with the annular channel 29. For this purpose, the lower annular distributor bracket 26 at its upper ring distributor panel 25 opposite end face between the annular grooves 30 on an outlet opening for the supplied liquid, which is opposite to the annular channel 29.

As can be seen in more detail from the top view of the ring distribution system 17 according to FIG. 3, eight spray nozzles 16 are arranged around the standpipe 3 at equal angular intervals with the ring distribution system 17. The spray nozzles 16 are each connected with an angle screw 33 to the annular channel 29 in the upper annular distribution console 25.

The spray nozzles 16 have at the end of a nozzle feed line 34 a spray nozzle. 35, which, like the nozzle feed line 34, preferably made of stainless steel. The nozzle feed line 34 with the seated at its end

Atomizer nozzle 35 are directed at an angle of about 30 ° relative to the horizontal upward to the canopy.

As is apparent from Fig. 3, the standpipe 3 is formed as a profiled metal tube with internally facing struts 36. Between the braces 36 chambers 37 are formed, which can serve to receive in the interior of the standpipe 3 along the same guided lines.

In the chamber 37 shown on the right in FIG. 3, the liquid supply line 15 runs.

The stock part 7 connected to the crown 6 (not shown in FIG. 3) extends partly within the standpipe 3 with an outer diameter determined by the diagonal spacing of the struts 36. The chambers 37 are therefore arranged between the standpipe 3 and the telescopically guided therein stock part 7, so that the lines, in particular the liquid supply line 15, can be laid freely between the standpipe 3 and the stock part 7.

3, through openings 38 are provided in the two ring distribution consoles 25 and 26 in the longitudinal direction of the standpipe 3, through which the first support rod 9 and the second support rod 11 (see FIG are guided displaceably.

As shown in Fig. 3, the outer contour of the two ring manifolds 25 and 26 of the ring distribution system 17 is formed so that its radial extent around the standpipe 3 taking into account the structural arrangement of the connection of the liquid supply line 15 to the annular channel 29, the spray nozzles 16 and the passage openings 38 is kept as low as possible. As a result, the ring distribution system 17 with the spray nozzles 16 connected thereto does not hinder the folding of the screen into its own completely closed position.

The spray nozzles 16 are arranged around the ring distribution system 17 and the standpipe 3 so as to be circumferentially located between the support struts so as to be sandwiched there between when the umbrella is folded in. Thus, the ring distribution system 17 does not need to be removed from the standpipe 3 to completely close the screen.

standing umbrella

LIST OF REFERENCE NUMBERS

1 umbrella roof

2 roof bar

3 standpipe

4 runners

5 support strut

6 crown

7 floor part

8 deflecting strut

9 first handrail

10 first cocking lever lock

11 second handrail

12 second cocking lever lock

13 pick quivers

14 fluid connection

15 fluid supply

16 spray nozzle

17 Ring distribution system

18 lighting device

19 torque arm

20 coupling device

21 Drinking water pipe

22 control valve

23 adapters

24 angle screw connection

25 ring distribution console

26 ring distribution console

27 compression fitting

28 screw

29 channel groove

opening

Elbow screw

Nozzle feed line

atomizer

brace

chambers

Through opening

Claims

claims

1. umbrella, in particular beach umbrella, garden umbrella,

Terrace shade or the like, which has a canopy (1) carried by a centric or eccentric standpipe (3), characterized by a cooling device with a liquid connection (14) arranged in the lower region of the standpipe (3), along the standpipe (3) extending liquid supply line (15) and at least one below the canopy (1) arranged and with the supply line (15) connected to the spray nozzle (16), with the under a certain pressure via the supply line (15) supplied liquid can be sprayed in small droplets, so that evaporate the droplets at a certain temperature in the area below the canopy (1).

2. Umbrella according to claim 1, d a d u r c h e k e n e c e n e s t, d a s s as a liquid drinking water can be used and the liquid connection (14) is designed for connection to a drinking water line.

3. umbrella according to claim 1 or 2, characterized in that around the standpipe (3) below the canopy (1) a ring distribution system (17) is arranged for the liquid, which is connected to the supply line (15) and several around its circumference having distributed branch lines, each connected to a spray nozzle (16) are.

4. The umbrella according to claim 3, wherein the ring distribution system (17) has an annular channel (29), into which the supply line (15) opens and from which the branch lines emanate.

5. Umbrella according to claim 4, characterized in that the ring distribution system (17) _ two adjacent annular distributor brackets (25, 26), wherein the annular channel (29) as an annular groove in the other ring distributor console (26) facing end side of at least one of Ring distribution panels (25) is formed.

6. A parachute according to claim 5, characterized in that on both sides of the annular channel (29) annular grooves (30) for receiving O-rings are arranged.

7. The umbrella according to claim 6, wherein the annular channel (29) is formed in the end face of one of the ring distributor consoles (25) and the annular grooves (30) are formed in the opposite end face of the other ring distributor console (26).

8. umbrella according to one of claims 3-7, charac- terized in that it is designed as a foldable or collapsible screen having a longitudinally of the standpipe (3) slidable rotor (4), with the roof bars (2) of the canopy (2) 1) hinged support struts (5) are hinged, and which is designed so that the ring distribution system (17) between the rotor (4) and canopy (1) is arranged without closing the screen in the folded or hinder folded position.

9. umbrella according to claim 8, characterized in that the rotor (4) is connected for lifting and / or locking in its upper position with a support rod or a tether, or the above the rotor (4) along the Standrόhrs (3) runs, and the ring distribution system (17) between the rotor (4) and the support struts (5) is arranged so that a complete closing of the screen in the folded or folded position is not hindered.

10. umbrella according to claim 8, characterized in that the roof bars (2) on a relative to the standpipe (3) telescopically displaceable, a crown (6) carrying the floor part (7) are articulated, said crown (6) and runners (4) itself when opening and closing the screen as a result of at least one arranged above the rotor (4), at one end pivotally connected to the standpipe (3) and at the other end articulated to a roof bar (2) connected in opposite directions strut (8) and the ring distribution system (17 ) between the support struts (5) and the at least one deflecting strut (8) is arranged so that a complete closing of the screen in the folded or collapsed position is not impaired.

11. umbrella according to claim 10, characterized in that the rotor (4) for locking in its upper position at one end of a support rod (9) or a tether is detachably fastened, whose or the other end to the crown (6) or on upper portion of the sliding stock portion (7) is fixed, and the ring distribution system (17) has a through hole (38) or a side slot has / through which or the holding rod (9) and the tether is movably guided.

12. A parachute according to any one of claims 1-11, wherein a liquid feed (15) extends within the standpipe (3).

13. A screen as claimed in any of claims 1-12, wherein four to sixteen spray nozzles (16) are disposed about the standpipe (3) at approximately equal angles between adjacent spray nozzles (16).

14. The umbrella according to claim 1, wherein the spray nozzles (16) have an atomizer nozzle (35) at the end of a nozzle feed line (34).

15. Method for cooling the air below the canopy

(1) a standing umbrella, in particular a garden umbrella, patio umbrella or the like, wherein the canopy (1) is supported by a centric or eccentric standpipe (3), characterized in that the liquid below the canopy (1) is sprayed or atomized in small droplets, so that they evaporate at a certain temperature in the area below the canopy (1).

16. The method according to claim 15, characterized in that the liquid supplied to the screen in the lower region of the standpipe (3) or below the standpipe (3), along the standpipe (3) to an area below the canopy (1) and passed from there sprayed in from around the circumference of the standpipe (3) distributed directions or ^'is atomized.

17. A method ^"according to claim 15 or 16, characterized in that said the direction in which the liquid is atomized or sprayed, forms an angle between 0 ° and 45 ° relative to the horizontal, to the canopy (1) towards.