US20220395737A1 - Pool for performing physical activity in counter-current regime - Google Patents
Pool for performing physical activity in counter-current regime Download PDFInfo
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- US20220395737A1 US20220395737A1 US17/775,553 US202017775553A US2022395737A1 US 20220395737 A1 US20220395737 A1 US 20220395737A1 US 202017775553 A US202017775553 A US 202017775553A US 2022395737 A1 US2022395737 A1 US 2022395737A1
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- United States
- Prior art keywords
- section
- swimming
- platform
- propulsion
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 230000037081 physical activity Effects 0.000 title claims abstract description 15
- 230000009182 swimming Effects 0.000 claims abstract description 88
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 101150114468 TUB1 gene Proteins 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/12—Arrangements in swimming pools for teaching swimming or for training
- A63B69/125—Devices for generating a current of water in swimming pools
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
- A63B21/0084—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters by moving the surrounding water
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/60—Apparatus used in water
Definitions
- the present invention relates to a tank configured to generate a flow of water inside it to perform physical activity in so-called “counter-current” conditions.
- tanks or pools for swimming or more generally training in so-called “counter-current” conditions that is, wherein a user is hit by a moving fluid against which to oppose, for example by walking or swimming, is widespread.
- the counter-current tanks allow physical activity to be carried out in a limited space compared to that necessary otherwise in a traditional type tank.
- a counter-current tank is configured to generate and maintain in circulation a flow of water along a ring path through the use of propulsion elements, such as a propeller immersed in water that can be rotated by a motor.
- the tank has sections in succession to each other and in mutual fluid communication, configured to guide the flow of water along a propulsion section, wherein the propulsion members are present, up to a use section, accessible to a user, into which the water flow is introduced.
- the propulsion section and the use section are mutually connected by means of elbow fittings, to form a closed loop or substantially ring path, by means of suitable connecting sections.
- the counter-current tanks of the known art suffer from some drawbacks with reference, in particular, to the presence of turbulence of the flow along the use section or, again, to the pressure drops along the loop path.
- the head losses reduce the overall efficiency of the tank, understood as the ability to generate a ring flow and keep it constant during the use of the tank itself.
- a turbulent flow has a chaotic course, whirling without follow ordered trajectories as in the case of a laminar fluid.
- the difficulty of generating a laminar motion and keeping it constant along the section of use is more noticeable in the tanks that have small dimensions, since the perturbations due to the connection sections between the use section and the propulsion section occur with greater intensity.
- the object of the present invention is to provide in a simple and efficient way a tank configured to force a water flow inside it along at least one loop path, to allow the execution of physical activity in counter-current conditions, that is to say in contrast to a current of water that at least partially hits a user inside the tank.
- a further object of the present invention is to allow a safe use of the tub as well as to make it safe during the period of non-use.
- Another purpose of the present invention is to provide a tank configured to perform counter-current physical activity of optimized dimensions, as part of a solution with reduced overall dimensions compared to those of the prior art solutions.
- a further object of the present invention is to provide a tank that can be used for carrying out different activities in counter-current conditions and, for this purpose, configured to house any equipment necessary for performing specific counter-current activity.
- a specific object of the present invention is a tank configured to perform physical activity in a counter-current regime comprising a swimming section, a propulsion section along which a fluid is forced, wherein the swimming section and the at least one propulsion section extend along a longitudinal direction, at least a first connecting section and at least a second connecting section for the connection, in fluid communication, of respective ends of the swimming section and of the propulsion section so as to define at least one ring path along which the fluid, a platform interposed between the at least one first connecting section and the at least one second connecting section, wherein the at least one first connecting section comprises a plurality of first curved channels, the at least one second connecting section comprises a plurality of second curved channels, wherein the platform can be movable between an intermediate lowered position, wherein is distal from an access opening to the swimming section and a raised position wherein it hermetically closes the opening preventing access to the swimming section, wherein the platform is optionally movable in a lowered position, in abutment or substantially in abut
- the at least one first connecting section can comprise a plurality of first curved channels with an increasing section starting from the at least one propulsion section towards the swimming section and wherein the at least one second section of connection can comprise a plurality of second curved channels with a decreasing section starting from the swimming section to the at least one propulsion section.
- the at least one first connecting section can comprise a plurality of first curved walls shaped like a “C” or “U” placed one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section.
- the at least one second connecting section can comprise a plurality of second curved walls shaped like a “C” or “U”, arranged one inside the other, mutually decentralized and with their respective concavities facing the swimming section and the at least one propulsion section.
- the tank can comprise at least a first deflector arranged at the at least one first connecting section and a second deflector located at the at least one second connecting section, wherein the first deflector and the second deflector are configured to reduce turbulence or detachment phenomenon of the flow at the end of the platform.
- the tank can comprise propulsion members configured to impart a momentum to a fluid included in the tank, wherein the propulsion members comprise at least one propeller operatively connected to a motor for its rotation drive, wherein the at least one propeller is arranged along the at least one second connecting section, below the platform.
- the platform when placed in the intermediate lowered position can define a separation diaphragm between the swim section and the propulsion section, keeping separate a flow which is forced along the swimming section and a flow which is forced along the propulsion section in counter-current with respect to the flow along the swimming section.
- the first deflector can be arranged along the at least one first connecting section, inside a cavity delimited by a first internal curved wall included in the at least one first connecting section, and the second deflector can be placed along the at least one second connecting section inside a cavity delimited by a second internal curved wall comprised in the at least one second connecting section.
- the first deflector can be connected to the first grid and the second deflector can be connected to the second grid.
- the first deflector has a cross section with a decreasing path along the longitudinal direction with a direction starting from the at least one first connecting portion towards the swimming section.
- the first deflector has a cross section configured as an ogive or drop element or a hydrodynamic element equipped with a rounded end placed inside the first internal curved wall, followed by it along the longitudinal direction with the direction of flow advancement, a descending portion that connects to the platform.
- the platform, the first deflector and the second deflector are mutually connected to define a single body comprised along the swimming section, movable between the lowered position and the raised position.
- the tank according to the invention allows to generate a laminar flow inside it as part of a solution with optimized overall dimensions.
- the tank according to the present invention also includes a section of use, i.e. the section along which a user can access, which has large dimensions compared to the overall dimensions of the tank itself.
- the tank according to the present invention is configured to ensure high safety not only during its operation but also during inactivity periods.
- FIG. 1 shows a schematic perspective view of a tank according to the invention in an operational configuration
- FIG. 2 shows a perspective view from above of a tank according to the invention
- FIG. 3 shows a sectional side view of the tank according to the invention, in a further operational configuration
- FIG. 4 shows a perspective view from above of the tank of FIG. 3 ;
- FIG. 5 shows a top view of the tank of FIG. 1 ;
- FIG. 6 shows a perspective view from above of a further embodiment of the tank according to the invention.
- FIG. 7 shows a top view of the tank of FIG. 6 ;
- FIG. 8 shows a side sectional view of the tank of FIG. 7 ;
- FIGS. 9 and 10 shows further components of the tank according to the invention.
- FIG. 11 shows a further version of the tank according to the present invention.
- FIG. 12 shows some possible uses of the tank according to the present invention.
- the tank according to the invention is configured to generate and maintain a flow of water inside it, along at least a loop or substantially loop path.
- FIGS. 1 to 5 an embodiment of the tank according to the invention is illustrated, indicated as a whole with the reference number 1 .
- the tank 1 comprises a use section or swimming section 2 , inside which it is possible to carry out a physical activity in counter-current, a propulsion section 3 , along which the fluid is forced, at least a first connecting section 4 and at least a second connecting section 5 for the connection, in fluid communication, of respective ends of the swimming section 2 and of the propulsion section 3 so as to define at least one loop path along which to push a fluid.
- the tank 1 at a top portion, defines an opening 6 for accessing the use or swimming section 2 of the same tank 1 (see, for example, FIGS. 1 and 2 ).
- the use or swimming section 2 and the propulsion section 3 are positioned one above the other or, in other words, the swimming section 2 starts from a top portion of the tank 1 , while the propulsion 3 starts from a portion of the bottom of the tank 1 .
- FIG. 12 illustrates equipment for carrying out activities such as hydrorunning, platform 32 or hydrobike, bicycle 33 ).
- the swimming section 2 and the propulsion section 3 extend along a longitudinal direction 7 of the tank 1 (see, for example, FIG. 1 ).
- the swimming section 2 and the propulsion section 3 have a linear development.
- the swimming section 2 is separated from the propulsion section 3 by a platform 8 , which acts as a support base along the swimming section 2 itself.
- the platform 8 is interposed between the at least one first connecting section 4 and the at least one second connecting section 5 (see for example FIG. 1 ).
- the platform 8 is configured to act as a mobile diaphragm to divide two counter-current flows present along respective sections of the tank 1 , i.e. the flow of water along the swimming section 2 and that present along the propulsion section 3
- the mobility of the platform 8 allows the tub 1 to assume different operating configurations, as better described below.
- the at least one first connecting section 4 is configured to cause an inversion of the direction of advance of the fluid between the propulsion section 3 and the swimming section 2 .
- the at least one first connecting section 4 comprises a plurality of partitions or curved walls shaped like a “C” or “U” or similarly, arranged one inside the other, mutually spaced and decentralized and with their respective concavities facing the swimming section 2 and the propulsion 3 .
- the at least one first connecting section 4 includes four first curved walls 9 , 10 , 11 and 12 with increasing size starting from a first internal curved wall 9 towards a first external curved wall 12 .
- the first curved walls 9 , 10 , 11 , 12 delimit inside at least a first connecting section 4 of the first curved channels for the passage, inside them, of respective water flows.
- Each first curved channel has a respective inlet section, interposed between the at least one first connecting section 4 and the propulsion section 3 , and a respective outlet section, interposed between the at least one first connecting section 4 and the section swimming 2 .
- each first curved channel has a smaller width than that of the respective outlet section.
- each first curved channel has an increasing variable section starting from the inlet section towards the respective outlet section (see FIGS. 1 and 3 ).
- each first curved channel has an increasing section along the direction of flow within at least one first connecting section 4 , starting from the propulsion section 3 towards the swimming section 2 .
- amplitude refers to the area of the cross section with respect to the direction of advancement of the fluid within the first curved channels.
- the at least one first connecting section 4 allows to divert and convey the flow coming from the propulsion section 3 towards the swimming section 2 , in order to limit the turbulence present in the flow outcoming from the propulsion section 3 .
- the at least one second connecting section 5 has a similar conformation to that described in relation to the at least one first connecting section 4 .
- the at least one second connecting section 5 is configured to cause an inversion of the direction of advancement of the fluid between the swimming section 2 and the propulsion section 3 and comprises a plurality of curved walls or walls shaped like a “C” or “U” shaped one inside the other, mutually spaced, with the respective concavities facing towards the swimming section 2 and the propulsion section 3 and, therefore, opposed to the concavities delimited along the at least one first connecting section 4 .
- the at least one second connecting section 5 includes four second curved walls 13 , 14 , 15 , 16 with an increasing size starting from a second internal curved wall 13 towards a second external curved wall 16 .
- the second curved walls 13 , 14 , 15 , 16 delimit inside the at least one second connecting section 5 of the second curved channels for the passage of respective water flows, each of which has a respective inlet section, interposed between the swimming section 2 and the at least one second connecting section 5 and a respective outlet section, interposed between the at least one second connecting section 5 and the propulsion section 3 .
- the inlet section has a greater amplitude than that of the respective outlet section.
- each second curved channel has a decreasing variable section starting from the inlet section towards the respective outlet section (see FIGS. 1 and 3 ) or, in other words, along the direction of the flow inside the tank 1 , starting from the swimming section 2 towards the propulsion section 3 .
- the at least one first connecting section 4 and the at least one second connecting section 5 each comprise four baffles or curved walls, although it is understood that further versions are possible comprising a different number of curved walls according to specifications requirements, for example as a function of the dimensions of the at least one first connecting section 4 or of the at least one second connecting section 5 (or more generally of the tank 1 ).
- the tank 1 comprises propulsion members configured to impart a momentum to a fluid comprised in the tank 1 , pushing it along at least one closed path, preferably in a loop.
- the propulsion members comprise at least one propulsive propeller 17 operatively connected to a respective motor 18 for its rotation drive (see FIG. 1 wherein two propellers are shown schematically represented as two cylindrical bodies or FIG. 3 wherein a schematic sectional view of a propeller is shown).
- the tank 1 comprises two propellers 17 arranged along a direction transverse to the direction of advance of the flow. It is understood that the total number of propulsive propellers 17 can vary according to the dimensions of the tank 1 .
- the propulsion members are arranged at the propulsion section 3 or along it, according to specific use requirements.
- the propulsion members are positioned outside the plan area of the swimming section 2 .
- the propulsion members are arranged outside the plan encumbrance of the platform 8 , so as not to interfere with the movement of the itself.
- the tank 1 comprises a first grid 19 , interposed between the at least one first connecting section 4 , the swimming section 2 and a second grid 20 interposed between the swimming section 2 and at least one second connecting section 5 .
- the first grate 19 and the second grate 20 are provided respectively to uniform the flow entering the swimming section 2 and that leaving it. Furthermore, the second grid 20 prevents a user from being sucked into the at least one second connecting section 5 , in favour of safe operation of the tank 1 .
- the tank 1 comprises a first deflector 21 and at least a second deflector 22 arranged at respective end portions of the platform 8 .
- the first deflector 21 is arranged along the at least one first connecting section 4 , inside the cavity delimited by the first internal curved wall 7
- the second deflector 22 is arranged along the at least one second connecting section 5 , inside the cavity delimited by the second internal curved wall 13 .
- the first deflector 21 is connected to the first grid 19 and therefore kept in position inside the first internal curved wall 9 .
- the second deflector 22 is connected to the second grid 20 and kept firmly in position within the second internal curved wall 13 .
- the first deflector 21 and the second deflector 22 are configured to uniform flow, reducing turbulence, at the internal portion respectively of the at least one first curved section 4 and of the at least one second curved section 5 .
- the first deflector 21 has a cross section with a decreasing path along the direction 7 , with a direction starting from the at least one first connecting section 4 towards the swimming section 2 , so as to reduce turbulence and pressure drops at one end of the platform 8 close to the at least one first connecting section 4 .
- the first deflector 21 has a cross section configured as an ogive or drop element or, more generally, a hydrodynamic element provided with a rounded end, in particular the end which is arranged inside the first internal curved wall 9 , followed by, along the flow forward direction, a descending, ramp portion, which is connected, at the opposite end, to the platform 8 .
- This conformation allows to avoid a detachment of the flow at the initial end of the platform 8 , in order to reduce turbulence at the internal curved wall 9 or to avoid cavitation phenomena.
- the second deflector 22 has a proximal end to the second rounded internal curved shaped wall 13 , to favor the deviation of the flow along the at least one second connecting section 5 .
- the propulsion members comprise one or more centrifugal pumps, schematically indicated with 30 , which suck water from the tank 1 , taking it from the at least one second connecting section 5 and delivering it under pressure at the propulsion section 3 , through suitably oriented nozzles, provided with Venturi tubes 31 to increase the flow rate.
- the platform 8 is mobile between a lowered, intermediate lowered position, wherein it is distal from the opening 6 and arranged at a base portion of the tank 1 (see FIGS. 1 and 2 ) and a raised position, wherein it acts as a sealing the opening 6 (see FIGS. 3 , 4 and 11 .
- the platform 8 is shown in the raised position with solid lines and in the lowered position with dashed lines).
- the platform 8 placed in the intermediate lowered position acts as a separation element, or rather acts as a separation diaphragm, between the swimming section 2 and the propulsion section 3 , delimiting the swimming section 2 below and guaranteeing a support for a user inside the latter.
- the tank 1 can be used to perform activities such as water aerobics, hydrospinning, hydrorunning or the like (see FIG. 12 ).
- the platform 8 arranged in the raised position provides a closing element for the tank 1 , preventing access to the swimming section 2 .
- sealing elements which are configured to selectively abut against the edges of the platform 8 and thus guarantee the sealing of the closure which can be obtained by means of the platform 8 itself.
- the platform 8 arranged in the raised position, can be walked on so that, when not in use, it does not limit the space available in the environment wherein the tank 1 is installed, for example a gym of a cruise ship.
- the platform 8 placed in the raised position to hermetically close the opening 6 the water from escaping from the tank 1 is prevented, for example following the movement of the boat wherein the tank 1 is installed. Furthermore, with the platform 8 in the raised position to hermetically close the opening 6 , the accidental entry of water into the tank 1 itself is prevented, for example if the tank 1 is installed on a covered deck subject to flooding, to the advantage of safety of use of the tank 1 itself.
- first deflector 21 and the second deflector 22 can each comprise a respective shaped portion configured to meet, by means of shape coupling, with respective end portions of the platform 8 (see for example FIG. 3 ).
- the first deflector 21 can comprise an abutment portion which extends along the longitudinal development direction 7 , inside the swimming section 2 , and defines an abutment or a sealing lip which can be housed, by coupling shape, in a respective seat provided at one end of the platform 8 .
- the second deflector 22 can comprise a respective abutment portion which extends along the longitudinal development direction 7 , inside the swimming section 2 and defines an abutment or a sealing lip which can be housed by means of a shape coupling in a respective seat made at one end of the platform 8 opposite to that which can be connected to the first deflector 21 (see FIG. 3 ).
- a tight barrier between the swimming section 2 and the propulsion section 3 is guaranteed, avoiding the generation of fluid leaks and, consequently, turbulence at the connection portions between both the first deflector 21 , the second deflector 22 and the platform 8 .
- the presence of a mobile platform 8 together with the presence of a first grid 19 and a second grid 20 provides an additional safety element in the use of the tub 1 itself.
- the tank 1 comprises movement members configured to selectively move the platform 8 between the lowered and raised positions and intermediate positions.
- the moving parts have been purposely omitted in order not to interfere with the intelligibility of the same, while they have been illustrated through discontinuous lines in the attached FIGS. 9 and 10 .
- the movement members comprise at least one motor unit 23 operatively connected to the platform 8 by means of motion transmission members and guide members configured to guide the platform 8 during its movement.
- the motor unit 23 can be installed centrally along the platform 8 , below it, and the motion transmission members can comprise a first transmission shaft 24 and a second transmission shaft 25 which are mirror-like to each other with respect to the motor unit 23 and connected to a power output of the latter by means of a transmission joint.
- first transmission shaft 24 is connected, by means of a gearing 26 , to a first axle 27 located at one end of the platform 8
- second transmission shaft 25 is connected, by means of a respective gearing 28 , to a second axle 29 located at the opposite end of the platform 8 (see FIG. 11 ).
- the first axle 27 is configured to engage respective first racks (schematically illustrated in FIG. 9 by means of dashed lines), meshing with them by means of pinions.
- the first racks act as guide members for moving the platform 8 .
- the second axle 29 is configured to engage respective second racks (see FIG. 9 ) at the opposite ends, distal from the gearing, engaging them by means of pinions.
- the second racks act as guide members for moving the platform 8 along the swimming section 2 .
- the movement members described above allow to obtain a smooth movement of the platform 8 , preventing it from tilting, jamming, during the movement between the lowered and raised positions, and vice versa.
- the moving members of the platform 8 can be configured in a different way and include, for example, motion transmission members provided with ropes and return pulleys operatively connected to a motor unit and to the platform 8 , to obtain the movement of the latter along a guide between a lowered position and a raised position following the actuation of the motor unit itself.
- the moving members and in particular the motor unit 23 , are arranged below the platform 8 , so as not to clutter up the swimming section 2 .
- the moving members can be installed within the thickness of the platform 8 , so as not to create an encumbrance below it, i.e. in the space present between the platform 8 and the bottom portion of the tank 1 .
- FIGS. 6 to 8 illustrate a further embodiment of the tank according to the present invention, indicated as a whole with 100 .
- the tank 100 differs from the previous embodiments in relation to the presence of two closed paths, preferably loop-shaped, side by side, along which respective water flows are forced.
- the tank 100 includes two propulsion sections 103 , 103 ′ which are arranged on opposite sides of the swimming section 102 .
- the tank 100 comprises a first separating wall 140 which extends between the at least one first connecting section 104 and the at least one second connecting section 105 and is configured to separate the first propulsion section 103 from the section swimming pool 102 and a second separating wall 141 which extends between the at least one first connecting section 104 and the at least one second connecting section 105 and is configured to separate the second propulsion section 103 ′ from the swimming section 102 .
- the swimming section 102 is laterally delimited between the first grate 119 , the second grate 120 , the first separating wall 140 and the second separating wall 141 and below by the platform 108 .
- the swimming section 102 as well as the two propulsion sections 103 , 103 ′ extend for the entire height of the tank 100 , intended as a dimension along the direction of movement of the platform 108 .
- the platform 108 is interposed between the at least one first connecting section 104 and the at least one second connecting section 105 (see for example FIG. 6 ).
- the tank 100 comprises a first grid 119 configured to separate the at least one first connecting section 104 from the swimming section 102 and the at least one first connecting section 104 from the propulsion section 103 .
- the tank 100 also includes a second grid 120 to separate the at least one second connecting section 105 from the swimming section 102 .
- the tank 100 comprises members for moving the platform 108 between the lowered position, the intermediate lowered position and the raised position according to the methods described, by way of example, in relation to the previous embodiment to which reference is made.
- the tank 100 comprises two first connecting sections 104 and two second connecting sections 105 for the mutual connection between a first propulsion section 103 and a portion of the swimming section 102 and between a second propulsion section 103 ′ and a portion of the swimming section 102 (see FIG. 7 ).
- the tank 100 in plan, has a symmetrical conformation with respect to the longitudinal development direction 107 .
- the first propulsion section 103 and the second propulsion section 103 ′ each comprise a respective propeller 117 although it is understood that alternative embodiments comprising two or more propulsion propellers 117 along each propulsion section 103 , 103 ′ are possible.
- the tank 100 comprises a platform 108 which, in turn, is provided with a first deflector 121 and a second deflector 122 mutually connected to the platform 108 itself, to form a single and movable body.
- the platform 108 is movable relative to the opening 106 between a lowered position, wherein it defines a bottom for the swimming section 102 , an intermediate lowered position, wherein it is spaced from the bottom of the tub 100 and a raised position wherein it acts by closing for the opening 106 itself, preventing access to the swimming section 102 and providing a support surface that can be walked on when the tank 100 is not in use, in accordance with what is described in relation to the previous embodiment, to which reference is made.
- the two first connecting sections 104 and the two second connecting sections 105 are configured to eliminate or reduce as much as possible the effect of the turbulence caused by the propulsion members along the propulsion sections 103 , 103 ′, so to obtain a laminar or substantially laminar flow along the swimming section 102 , similarly to the previous embodiment.
- a tank 1 , 100 according to the invention is able to achieve the intended purposes, generating and maintaining a laminar flow at a use or swimming section 2 , 102 .
- the tank 1 , 100 allows to optimize the flow characteristics, obtaining a laminar regime along the swimming section 2 , 102 as part of a solution with reduced dimensions and safe use.
- the possibility of moving the platform 8 , 108 along the swimming section 2 , 102 allows the tank 1 , 100 to be used to perform swimming activities in counter-current or as well as further activities such as, for example, water aerobics, hydrobike or hydrorunning.
- the platform 8 , 108 can be lowered until it is brought in correspondence with the base or substantially in correspondence with the base of the tank 1 , 100 , thus acting itself as a support surface along which to arrange the tools necessary for carrying out the aforementioned physical activities.
- the platform 8 , 108 placed in this configuration, it is possible to activate the propulsion members in reverse, to generate propulsion with an opposite direction (counter-current) with respect to the orientation of any tools present inside the swimming section 2 , 102 , to allow the performance of physical activity in counter-current conditions or for specific needs of use.
- the flow can be pushed starting from the propulsion section 3 , 103 , 103 ′ towards the at least one second connecting section 5 , 105 , introduced into the swimming section 2 , 102 and then introduced into the at least one first connecting section 4 , 104 to then reach the at least one propulsion section 3 , 103 , 103 ′ again.
- the platform 8 , 108 in addition to acting as a closing element of the tank 1 , 100 or as a support surface, when arranged in the lowered position, to mutually divide the swimming section 2 , 102 and the propulsion section 3 , 103 , 103 ′, acts as a dividing diaphragm between two branches of the flow inside the tank 1 , 100 .
- the platform 8 , 108 performs a triple function, albeit within the context of an overall simple and easy to use technical solution.
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- Devices For Medical Bathing And Washing (AREA)
Abstract
A tank (1, 100) configured to carry out physical activity in a counter-current regime comprises a swimming section (2, 102), at least one propulsion section (3, 103, 103′) along which a fluid is forced, at least a first section connecting section (4, 104) and at least a second connecting section (5, 105) for the connection of respective ends of the swimming section (2, 102) and of the propulsion section (3, 103, 103′) at least one long fluid propulsion loop path, wherein the at least one first connecting section (4, 104) comprises a plurality of first curved channels and the at least one second connecting section (5, 105) comprises a plurality of second curved channels and wherein the platform (8, 108) is movable.
Description
- The present invention relates to a tank configured to generate a flow of water inside it to perform physical activity in so-called “counter-current” conditions.
- Nowadays, the use of tanks or pools for swimming or more generally training in so-called “counter-current” conditions, that is, wherein a user is hit by a moving fluid against which to oppose, for example by walking or swimming, is widespread.
- The counter-current tanks allow physical activity to be carried out in a limited space compared to that necessary otherwise in a traditional type tank.
- In general, a counter-current tank is configured to generate and maintain in circulation a flow of water along a ring path through the use of propulsion elements, such as a propeller immersed in water that can be rotated by a motor.
- The tank has sections in succession to each other and in mutual fluid communication, configured to guide the flow of water along a propulsion section, wherein the propulsion members are present, up to a use section, accessible to a user, into which the water flow is introduced.
- The propulsion section and the use section are mutually connected by means of elbow fittings, to form a closed loop or substantially ring path, by means of suitable connecting sections.
- U.S. Pat. Nos. 2,035,835 and 5,005,228 describe some examples of tanks for counter-current swimming.
- The counter-current tanks of the known art suffer from some drawbacks with reference, in particular, to the presence of turbulence of the flow along the use section or, again, to the pressure drops along the loop path.
- These turbulences do not allow the correct execution of physical activity, as the user not only finds himself having to counter the current that hits him but must necessarily continue to compensate his own arrangement to face the turbulence of the flow.
- In addition, the head losses reduce the overall efficiency of the tank, understood as the ability to generate a ring flow and keep it constant during the use of the tank itself.
- As is well known, in fact, a turbulent flow has a chaotic course, whirling without follow ordered trajectories as in the case of a laminar fluid.
- Keeping the flow motion constant and uniform along the section of use is necessary to provide ideal conditions of use for a user. In practice, at the use section, the motion of the fluid must be maintained in a laminar regime or as close as possible to the laminar regime to generate a uniform current.
- The difficulty of generating a laminar motion and keeping it constant along the section of use is more noticeable in the tanks that have small dimensions, since the perturbations due to the connection sections between the use section and the propulsion section occur with greater intensity.
- The solutions of the prior art do not allow to guarantee a laminar motion of the flow along the section of use with reference in particular to small tanks, which can be installed in boats or for use in closed environments such as gyms or similar or, again, which can be installed in domestic environments.
- The object of the present invention is to provide in a simple and efficient way a tank configured to force a water flow inside it along at least one loop path, to allow the execution of physical activity in counter-current conditions, that is to say in contrast to a current of water that at least partially hits a user inside the tank.
- A further object of the present invention is to allow a safe use of the tub as well as to make it safe during the period of non-use.
- Another purpose of the present invention is to provide a tank configured to perform counter-current physical activity of optimized dimensions, as part of a solution with reduced overall dimensions compared to those of the prior art solutions.
- A further object of the present invention is to provide a tank that can be used for carrying out different activities in counter-current conditions and, for this purpose, configured to house any equipment necessary for performing specific counter-current activity.
- A specific object of the present invention is a tank configured to perform physical activity in a counter-current regime comprising a swimming section, a propulsion section along which a fluid is forced, wherein the swimming section and the at least one propulsion section extend along a longitudinal direction, at least a first connecting section and at least a second connecting section for the connection, in fluid communication, of respective ends of the swimming section and of the propulsion section so as to define at least one ring path along which the fluid, a platform interposed between the at least one first connecting section and the at least one second connecting section, wherein the at least one first connecting section comprises a plurality of first curved channels, the at least one second connecting section comprises a plurality of second curved channels, wherein the platform can be movable between an intermediate lowered position, wherein is distal from an access opening to the swimming section and a raised position wherein it hermetically closes the opening preventing access to the swimming section, wherein the platform is optionally movable in a lowered position, in abutment or substantially in abutment against a bottom portion of the tank to act as a support surface.
- According to another aspect of the invention, the at least one first connecting section can comprise a plurality of first curved channels with an increasing section starting from the at least one propulsion section towards the swimming section and wherein the at least one second section of connection can comprise a plurality of second curved channels with a decreasing section starting from the swimming section to the at least one propulsion section.
- According to a further aspect of the present invention, the at least one first connecting section can comprise a plurality of first curved walls shaped like a “C” or “U” placed one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section.
- According to an additional aspect of the present invention, the at least one second connecting section can comprise a plurality of second curved walls shaped like a “C” or “U”, arranged one inside the other, mutually decentralized and with their respective concavities facing the swimming section and the at least one propulsion section.
- According to another aspect of the present invention, the tank can comprise at least a first deflector arranged at the at least one first connecting section and a second deflector located at the at least one second connecting section, wherein the first deflector and the second deflector are configured to reduce turbulence or detachment phenomenon of the flow at the end of the platform.
- According to a further aspect of the present invention, the tank can comprise propulsion members configured to impart a momentum to a fluid included in the tank, wherein the propulsion members comprise at least one propeller operatively connected to a motor for its rotation drive, wherein the at least one propeller is arranged along the at least one second connecting section, below the platform.
- According to an additional aspect of the present invention, the platform when placed in the intermediate lowered position can define a separation diaphragm between the swim section and the propulsion section, keeping separate a flow which is forced along the swimming section and a flow which is forced along the propulsion section in counter-current with respect to the flow along the swimming section.
- According to another aspect of the present invention, the first deflector can be arranged along the at least one first connecting section, inside a cavity delimited by a first internal curved wall included in the at least one first connecting section, and the second deflector can be placed along the at least one second connecting section inside a cavity delimited by a second internal curved wall comprised in the at least one second connecting section.
- According to a further aspect of the present invention, the first deflector can be connected to the first grid and the second deflector can be connected to the second grid.
- According to an additional aspect of the present invention, the first deflector has a cross section with a decreasing path along the longitudinal direction with a direction starting from the at least one first connecting portion towards the swimming section.
- According to another aspect of the present invention, the first deflector has a cross section configured as an ogive or drop element or a hydrodynamic element equipped with a rounded end placed inside the first internal curved wall, followed by it along the longitudinal direction with the direction of flow advancement, a descending portion that connects to the platform.
- According to a further aspect of the present invention, the platform, the first deflector and the second deflector are mutually connected to define a single body comprised along the swimming section, movable between the lowered position and the raised position.
- The advantages offered by the tank according to the invention are evident.
- In particular, the tank according to the invention allows to generate a laminar flow inside it as part of a solution with optimized overall dimensions.
- The tank according to the present invention also includes a section of use, i.e. the section along which a user can access, which has large dimensions compared to the overall dimensions of the tank itself.
- Furthermore, the tank according to the present invention is configured to ensure high safety not only during its operation but also during inactivity periods.
- The present invention will now be described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the Figures of the attached drawings, wherein:
-
FIG. 1 shows a schematic perspective view of a tank according to the invention in an operational configuration; -
FIG. 2 shows a perspective view from above of a tank according to the invention; -
FIG. 3 shows a sectional side view of the tank according to the invention, in a further operational configuration; -
FIG. 4 shows a perspective view from above of the tank ofFIG. 3 ; -
FIG. 5 shows a top view of the tank ofFIG. 1 ; -
FIG. 6 shows a perspective view from above of a further embodiment of the tank according to the invention; -
FIG. 7 shows a top view of the tank ofFIG. 6 ; -
FIG. 8 shows a side sectional view of the tank ofFIG. 7 ; -
FIGS. 9 and 10 shows further components of the tank according to the invention; -
FIG. 11 shows a further version of the tank according to the present invention; -
FIG. 12 shows some possible uses of the tank according to the present invention. - With reference to the attached Figures, it should be noted that the tank according to the invention is configured to generate and maintain a flow of water inside it, along at least a loop or substantially loop path.
- With reference to
FIGS. 1 to 5 , an embodiment of the tank according to the invention is illustrated, indicated as a whole with thereference number 1. - The
tank 1 comprises a use section orswimming section 2, inside which it is possible to carry out a physical activity in counter-current, apropulsion section 3, along which the fluid is forced, at least a first connectingsection 4 and at least a second connectingsection 5 for the connection, in fluid communication, of respective ends of theswimming section 2 and of thepropulsion section 3 so as to define at least one loop path along which to push a fluid. - The
tank 1, at a top portion, defines anopening 6 for accessing the use orswimming section 2 of the same tank 1 (see, for example,FIGS. 1 and 2 ). - In particular, the use or
swimming section 2 and thepropulsion section 3 are positioned one above the other or, in other words, theswimming section 2 starts from a top portion of thetank 1, while thepropulsion 3 starts from a portion of the bottom of thetank 1. - In the following description reference will be made to a physical activity such as swimming, although it is understood that the
tank 1 can also be used for the execution of a different physical activity, such as walking or pedaling or further counter-current exercises without any limitation (seeFIG. 12 illustrates equipment for carrying out activities such as hydrorunning,platform 32 or hydrobike, bicycle 33). - The
swimming section 2 and thepropulsion section 3 extend along alongitudinal direction 7 of the tank 1 (see, for example,FIG. 1 ). - Preferably, the
swimming section 2 and thepropulsion section 3 have a linear development. - The
swimming section 2 is separated from thepropulsion section 3 by aplatform 8, which acts as a support base along theswimming section 2 itself. - The
platform 8 is interposed between the at least one first connectingsection 4 and the at least one second connecting section 5 (see for exampleFIG. 1 ). - The
platform 8, moreover, is configured to act as a mobile diaphragm to divide two counter-current flows present along respective sections of thetank 1, i.e. the flow of water along theswimming section 2 and that present along thepropulsion section 3 The mobility of theplatform 8 allows thetub 1 to assume different operating configurations, as better described below. - The at least one first connecting
section 4 is configured to cause an inversion of the direction of advance of the fluid between thepropulsion section 3 and theswimming section 2. In this regard, it should be noted that the at least one first connectingsection 4 comprises a plurality of partitions or curved walls shaped like a “C” or “U” or similarly, arranged one inside the other, mutually spaced and decentralized and with their respective concavities facing theswimming section 2 and thepropulsion 3. - With reference to what is illustrated in the attached Figures, the at least one first connecting
section 4 includes four firstcurved walls curved wall 9 towards a first externalcurved wall 12. - The first
curved walls section 4 of the first curved channels for the passage, inside them, of respective water flows. Each first curved channel has a respective inlet section, interposed between the at least one first connectingsection 4 and thepropulsion section 3, and a respective outlet section, interposed between the at least one first connectingsection 4 and thesection swimming 2. - It should be noted that for each first curved channel, the inlet section has a smaller width than that of the respective outlet section. In practice, each first curved channel has an increasing variable section starting from the inlet section towards the respective outlet section (see
FIGS. 1 and 3 ). In other words, each first curved channel has an increasing section along the direction of flow within at least one first connectingsection 4, starting from thepropulsion section 3 towards theswimming section 2. - The term amplitude refers to the area of the cross section with respect to the direction of advancement of the fluid within the first curved channels.
- The at least one first connecting
section 4 allows to divert and convey the flow coming from thepropulsion section 3 towards theswimming section 2, in order to limit the turbulence present in the flow outcoming from thepropulsion section 3. - The at least one second connecting
section 5 has a similar conformation to that described in relation to the at least one first connectingsection 4. - In particular, the at least one second connecting
section 5 is configured to cause an inversion of the direction of advancement of the fluid between theswimming section 2 and thepropulsion section 3 and comprises a plurality of curved walls or walls shaped like a “C” or “U” shaped one inside the other, mutually spaced, with the respective concavities facing towards theswimming section 2 and thepropulsion section 3 and, therefore, opposed to the concavities delimited along the at least one first connectingsection 4. - With reference to what is illustrated in the attached Figures, the at least one second connecting
section 5 includes four secondcurved walls curved wall 13 towards a second externalcurved wall 16. - The second
curved walls section 5 of the second curved channels for the passage of respective water flows, each of which has a respective inlet section, interposed between theswimming section 2 and the at least one second connectingsection 5 and a respective outlet section, interposed between the at least one second connectingsection 5 and thepropulsion section 3. - It should be noted that for each second curved channel, the inlet section has a greater amplitude than that of the respective outlet section.
- In practice, each second curved channel has a decreasing variable section starting from the inlet section towards the respective outlet section (see
FIGS. 1 and 3 ) or, in other words, along the direction of the flow inside thetank 1, starting from theswimming section 2 towards thepropulsion section 3. - In the attached
FIGS. 1-5 the at least one first connectingsection 4 and the at least one second connectingsection 5 each comprise four baffles or curved walls, although it is understood that further versions are possible comprising a different number of curved walls according to specifications requirements, for example as a function of the dimensions of the at least one first connectingsection 4 or of the at least one second connecting section 5 (or more generally of the tank 1). - The
tank 1 comprises propulsion members configured to impart a momentum to a fluid comprised in thetank 1, pushing it along at least one closed path, preferably in a loop. - According to a preferred embodiment, the propulsion members comprise at least one
propulsive propeller 17 operatively connected to arespective motor 18 for its rotation drive (seeFIG. 1 wherein two propellers are shown schematically represented as two cylindrical bodies orFIG. 3 wherein a schematic sectional view of a propeller is shown). - Preferably, the
tank 1 comprises twopropellers 17 arranged along a direction transverse to the direction of advance of the flow. It is understood that the total number ofpropulsive propellers 17 can vary according to the dimensions of thetank 1. - The propulsion members are arranged at the
propulsion section 3 or along it, according to specific use requirements. - Preferably, the propulsion members are positioned outside the plan area of the
swimming section 2. In particular, the propulsion members are arranged outside the plan encumbrance of theplatform 8, so as not to interfere with the movement of the itself. - The
tank 1 comprises afirst grid 19, interposed between the at least one first connectingsection 4, theswimming section 2 and asecond grid 20 interposed between theswimming section 2 and at least one second connectingsection 5. - The
first grate 19 and thesecond grate 20 are provided respectively to uniform the flow entering theswimming section 2 and that leaving it. Furthermore, thesecond grid 20 prevents a user from being sucked into the at least one second connectingsection 5, in favour of safe operation of thetank 1. - The
tank 1 comprises afirst deflector 21 and at least asecond deflector 22 arranged at respective end portions of theplatform 8. - According to the embodiment illustrated in the attached
FIGS. 1 to 5 , thefirst deflector 21 is arranged along the at least one first connectingsection 4, inside the cavity delimited by the first internalcurved wall 7, while thesecond deflector 22 is arranged along the at least one second connectingsection 5, inside the cavity delimited by the second internalcurved wall 13. - More in detail, the
first deflector 21 is connected to thefirst grid 19 and therefore kept in position inside the first internalcurved wall 9. - Similarly, the
second deflector 22 is connected to thesecond grid 20 and kept firmly in position within the second internalcurved wall 13. - The
first deflector 21 and thesecond deflector 22 are configured to uniform flow, reducing turbulence, at the internal portion respectively of the at least one firstcurved section 4 and of the at least one secondcurved section 5. - The
first deflector 21 has a cross section with a decreasing path along thedirection 7, with a direction starting from the at least one first connectingsection 4 towards theswimming section 2, so as to reduce turbulence and pressure drops at one end of theplatform 8 close to the at least one first connectingsection 4. - According to a preferred embodiment, the
first deflector 21 has a cross section configured as an ogive or drop element or, more generally, a hydrodynamic element provided with a rounded end, in particular the end which is arranged inside the first internalcurved wall 9, followed by, along the flow forward direction, a descending, ramp portion, which is connected, at the opposite end, to theplatform 8. - This conformation allows to avoid a detachment of the flow at the initial end of the
platform 8, in order to reduce turbulence at the internalcurved wall 9 or to avoid cavitation phenomena. - The
second deflector 22 has a proximal end to the second rounded internal curved shapedwall 13, to favor the deviation of the flow along the at least one second connectingsection 5. - According to an alternative embodiment illustrated by way of example in the attached
FIG. 11 , the propulsion members comprise one or more centrifugal pumps, schematically indicated with 30, which suck water from thetank 1, taking it from the at least one second connectingsection 5 and delivering it under pressure at thepropulsion section 3, through suitably oriented nozzles, provided withVenturi tubes 31 to increase the flow rate. - The
platform 8 is mobile between a lowered, intermediate lowered position, wherein it is distal from theopening 6 and arranged at a base portion of the tank 1 (seeFIGS. 1 and 2 ) and a raised position, wherein it acts as a sealing the opening 6 (seeFIGS. 3, 4 and 11 . In particular, in the attachedFIG. 11 , theplatform 8 is shown in the raised position with solid lines and in the lowered position with dashed lines). - The
platform 8 placed in the intermediate lowered position acts as a separation element, or rather acts as a separation diaphragm, between theswimming section 2 and thepropulsion section 3, delimiting theswimming section 2 below and guaranteeing a support for a user inside the latter. - With the
platform 8 arranged in the completely lowered or substantially completely lowered position, on the other hand, thetank 1 can be used to perform activities such as water aerobics, hydrospinning, hydrorunning or the like (seeFIG. 12 ). - The
platform 8 arranged in the raised position provides a closing element for thetank 1, preventing access to theswimming section 2. In this regard, along the top portion of thetank 1, at the perimeter of theopening 6, are provided sealing elements which are configured to selectively abut against the edges of theplatform 8 and thus guarantee the sealing of the closure which can be obtained by means of theplatform 8 itself. - Selectively closing the access to the
swimming section 2 of thetank 1 allows the safe use of thetank 1 itself, for example in boats, to prevent the use of thetank 1 or, more generally, to prevent access and prevent a user may accidentally fall intotank 1. Not only that, theplatform 8, arranged in the raised position, can be walked on so that, when not in use, it does not limit the space available in the environment wherein thetank 1 is installed, for example a gym of a cruise ship. - Furthermore, with the
platform 8 placed in the raised position to hermetically close theopening 6, the water from escaping from thetank 1 is prevented, for example following the movement of the boat wherein thetank 1 is installed. Furthermore, with theplatform 8 in the raised position to hermetically close theopening 6, the accidental entry of water into thetank 1 itself is prevented, for example if thetank 1 is installed on a covered deck subject to flooding, to the advantage of safety of use of thetank 1 itself. - It should be noted that, with reference to the embodiment illustrated in the attached
FIGS. 1-5 , thefirst deflector 21 and thesecond deflector 22 can each comprise a respective shaped portion configured to meet, by means of shape coupling, with respective end portions of the platform 8 (see for exampleFIG. 3 ). - By way of non-limiting example, the
first deflector 21 can comprise an abutment portion which extends along thelongitudinal development direction 7, inside theswimming section 2, and defines an abutment or a sealing lip which can be housed, by coupling shape, in a respective seat provided at one end of theplatform 8. Similarly, thesecond deflector 22 can comprise a respective abutment portion which extends along thelongitudinal development direction 7, inside theswimming section 2 and defines an abutment or a sealing lip which can be housed by means of a shape coupling in a respective seat made at one end of theplatform 8 opposite to that which can be connected to the first deflector 21 (seeFIG. 3 ). - This shape connection between the
first deflector 21 and theplatform 8, as well as between thesecond deflector 22 and theplatform 8, allows to obtain a sealed connection between thefirst deflector 21 itself, thesecond deflector 22 and theplatform 8. As a fact, with theplatform 8 in the lowered position, a tight barrier between theswimming section 2 and thepropulsion section 3 is guaranteed, avoiding the generation of fluid leaks and, consequently, turbulence at the connection portions between both thefirst deflector 21, thesecond deflector 22 and theplatform 8. - In the
tank 1 according to the invention, the presence of amobile platform 8, together with the presence of afirst grid 19 and asecond grid 20 provides an additional safety element in the use of thetub 1 itself. - The
tank 1 comprises movement members configured to selectively move theplatform 8 between the lowered and raised positions and intermediate positions. - In the attached
FIGS. 1 to 5 , the moving parts have been purposely omitted in order not to interfere with the intelligibility of the same, while they have been illustrated through discontinuous lines in the attachedFIGS. 9 and 10 . - The movement members comprise at least one
motor unit 23 operatively connected to theplatform 8 by means of motion transmission members and guide members configured to guide theplatform 8 during its movement. - By way of non-limiting example, the
motor unit 23 can be installed centrally along theplatform 8, below it, and the motion transmission members can comprise afirst transmission shaft 24 and asecond transmission shaft 25 which are mirror-like to each other with respect to themotor unit 23 and connected to a power output of the latter by means of a transmission joint. - In turn, the
first transmission shaft 24 is connected, by means of agearing 26, to afirst axle 27 located at one end of theplatform 8, and thesecond transmission shaft 25 is connected, by means of arespective gearing 28, to asecond axle 29 located at the opposite end of the platform 8 (seeFIG. 11 ). - The
first axle 27 is configured to engage respective first racks (schematically illustrated inFIG. 9 by means of dashed lines), meshing with them by means of pinions. The first racks act as guide members for moving theplatform 8. - Similarly, the
second axle 29 is configured to engage respective second racks (see FIG. 9) at the opposite ends, distal from the gearing, engaging them by means of pinions. The second racks act as guide members for moving theplatform 8 along theswimming section 2. - It should be noted that the movement members described above allow to obtain a smooth movement of the
platform 8, preventing it from tilting, jamming, during the movement between the lowered and raised positions, and vice versa. - According to alternative embodiments, not shown in the attached figures, the moving members of the
platform 8 can be configured in a different way and include, for example, motion transmission members provided with ropes and return pulleys operatively connected to a motor unit and to theplatform 8, to obtain the movement of the latter along a guide between a lowered position and a raised position following the actuation of the motor unit itself. - As mentioned, the moving members, and in particular the
motor unit 23, are arranged below theplatform 8, so as not to clutter up theswimming section 2. Optionally, the moving members can be installed within the thickness of theplatform 8, so as not to create an encumbrance below it, i.e. in the space present between theplatform 8 and the bottom portion of thetank 1. - The attached
FIGS. 6 to 8 illustrate a further embodiment of the tank according to the present invention, indicated as a whole with 100. - In the following, the same reference numbers increased by a further hundred units will be used to indicate the components corresponding to the previous embodiment.
- The
tank 100 differs from the previous embodiments in relation to the presence of two closed paths, preferably loop-shaped, side by side, along which respective water flows are forced. - In this regard, the
tank 100 includes twopropulsion sections swimming section 102. - More in detail, the
tank 100 comprises afirst separating wall 140 which extends between the at least one first connectingsection 104 and the at least one second connectingsection 105 and is configured to separate thefirst propulsion section 103 from thesection swimming pool 102 and asecond separating wall 141 which extends between the at least one first connectingsection 104 and the at least one second connectingsection 105 and is configured to separate thesecond propulsion section 103′ from theswimming section 102. - In fact, the
swimming section 102 is laterally delimited between thefirst grate 119, thesecond grate 120, thefirst separating wall 140 and thesecond separating wall 141 and below by theplatform 108. - The
swimming section 102, as well as the twopropulsion sections tank 100, intended as a dimension along the direction of movement of theplatform 108. - The
platform 108 is interposed between the at least one first connectingsection 104 and the at least one second connecting section 105 (see for exampleFIG. 6 ). - Similarly to what has been described in relation to the previous embodiment, the
tank 100 comprises afirst grid 119 configured to separate the at least one first connectingsection 104 from theswimming section 102 and the at least one first connectingsection 104 from thepropulsion section 103. - The
tank 100 also includes asecond grid 120 to separate the at least one second connectingsection 105 from theswimming section 102. - The
tank 100 comprises members for moving theplatform 108 between the lowered position, the intermediate lowered position and the raised position according to the methods described, by way of example, in relation to the previous embodiment to which reference is made. - The
tank 100 comprises two first connectingsections 104 and two second connectingsections 105 for the mutual connection between afirst propulsion section 103 and a portion of theswimming section 102 and between asecond propulsion section 103′ and a portion of the swimming section 102 (seeFIG. 7 ). - In particular, it should be noted that the
tank 100, in plan, has a symmetrical conformation with respect to thelongitudinal development direction 107. - In fact, in the
tank 100 there are a first loop flow and a second ring flow which meet along theswimming section 102 with the same direction of advance (seeFIG. 7 wherein the trend of each of the two flows is highlighted by arrows). - According to a preferred embodiment, the
first propulsion section 103 and thesecond propulsion section 103′ each comprise arespective propeller 117 although it is understood that alternative embodiments comprising two ormore propulsion propellers 117 along eachpropulsion section - The
tank 100 comprises aplatform 108 which, in turn, is provided with afirst deflector 121 and asecond deflector 122 mutually connected to theplatform 108 itself, to form a single and movable body. - In particular, the
platform 108 is movable relative to theopening 106 between a lowered position, wherein it defines a bottom for theswimming section 102, an intermediate lowered position, wherein it is spaced from the bottom of thetub 100 and a raised position wherein it acts by closing for theopening 106 itself, preventing access to theswimming section 102 and providing a support surface that can be walked on when thetank 100 is not in use, in accordance with what is described in relation to the previous embodiment, to which reference is made. - It should be noted that also the two first connecting
sections 104 and the two second connectingsections 105 are configured to eliminate or reduce as much as possible the effect of the turbulence caused by the propulsion members along thepropulsion sections swimming section 102, similarly to the previous embodiment. - The person skilled in the art will easily understand how a
tank swimming section - Compared to the solutions of the known art which provide for a recirculation of the water inside the tank, to allow training in “counter-current” conditions, the
tank swimming section - In fact, the presence of a
mobile platform opening swimming section tank - Furthermore, the possibility of moving the
platform swimming section tank platform tank - According to a version of the present invention, preferably with the
platform swimming section - In practice, the flow can be pushed starting from the
propulsion section section swimming section section propulsion section - The possible presence of a turbulent flow along the
swimming section platform tank - Furthermore, it is highlighted how the
platform tank swimming section propulsion section tank - In fact, the
platform - In the foregoing, the preferred embodiments have been described and variants of the present invention have been suggested, but it is to be understood that those skilled in the art will be able to make modifications and changes without thereby departing from the relative scope of protection, as defined by the claims attached.
Claims (14)
1. A tank configured to perform physical activity in counter-current regime comprising a swimming section, at least one propulsion section along which a fluid is forced, wherein the swimming section and the at least one propulsion section develop along a longitudinal direction, at least a first connecting section and at least a second connecting section for the connection, in fluid communication, of respective ends of the swimming section and the at least one propulsion section so as to define at least one loop path along which to force the fluid, a platform interposed between the at least a first connecting section and the at least a second connecting section, wherein the at least one first connecting section comprises a plurality of first curved channels, the at least one second connecting section comprises a plurality of second curved channels, and wherein the platform is movable between an intermediate lowered position wherein is distal from an access opening to the swimming section and a raised position wherein it hermetically closes the opening preventing access to the swimming section, wherein optionally the platform is movable in a lowered position, in abutment or substantially in abutment against the bottom portion of the tank to act as a support surface.
2. The tank according to claim 1 , wherein the at least one first connecting section comprises a plurality first curved channels with an increasing section starting from the at least one propulsion section towards the swimming section and wherein the at least one second connecting section comprises a plurality of second curved channels with a decreasing section starting from the swimming section towards the at least one propulsion section.
3. The tank according to claim 1 , wherein the at least one first connecting section comprises a plurality of first curved walls “C-shaped” or “U-shaped”, arranged one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section.
4. The tank according to claim 1 , wherein the at least one second connecting section comprises a plurality of first curved walls “C-shaped” or “U-shaped”, arranged one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section.
5. The tank according to claim 1 , comprising at least one first baffle arranged at the at least one first connecting section and a second baffle arranged at the at least one second connecting section, wherein the first baffle and the second baffle are configured to reduce turbulence or detachment of the flow at respective opposite ends of the platform.
6. The tank according to claim 1 , comprising propulsion members configured to impart a momentum to a fluid comprised in the tank, wherein the propulsion members comprise at least one propeller operatively connected to a motor for its operation in rotation, wherein the at least one propeller is arranged along the at least one second connecting section, below the platform.
7. The tank according to claim 1 , wherein the platform arranged in the intermediate lowered position defines a diaphragm for separating the swimming section and the at least one propulsion section, keeping a flow which is forced along the swimming section and a flow which is forced along the at least one propulsion section in counter-current with respect to the flow along the swimming section separated to each other.
8. The tank according to claim 5 , wherein the first baffle is provided along the at least one first connecting section, inside a cavity delimited by a first internal curved wall comprised in the at least one first connecting section, and the second baffle is arranged along the at least one second connecting section inside a cavity delimited by a second internal curved wall comprised in the at least one second connecting section.
9. The tank according to claim 8 , wherein the first baffle is connected to the first grid and wherein the second baffle is connected to the second grid.
10. The tank according to claim 8 , wherein the first baffle has a cross section with a decreasing shape along the longitudinal direction from the at least a first connecting portion to the swimming section.
11. The tank according to claim 8 , wherein the first baffle has a cross-section configured as an ogive or drop-shaped element or a hydrodynamic element provided with a rounded end arranged inside the first inner curved wall, to which a descending portion which is connected to the platform follows, along the longitudinal direction with the flow forward direction.
12. The tank according to claim 5 , wherein the platform, the first baffle and the second baffle are connected to each other to define a single body comprised along the swimming section, movable between the lowered position and the raised position.
13. The tank according to claim 1 , comprising movement members configured to selectively move the platform between the lowered and raised positions and intermediate positions.
14. The tank according to claim 13 , wherein the movement members comprise a motor unit operatively connected to the platform by means of motion transmission members and guide members configured to guide the platform during its movement.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102019000021990A IT201900021990A1 (en) | 2019-11-22 | 2019-11-22 | TANK TO PERFORM PHYSICAL ACTIVITIES IN COUNTERCURRENT |
IT102019000021990 | 2019-11-22 | ||
PCT/IB2020/060756 WO2021099913A1 (en) | 2019-11-22 | 2020-11-16 | Pool for performing physical activity in counter-current regime |
Publications (1)
Publication Number | Publication Date |
---|---|
US20220395737A1 true US20220395737A1 (en) | 2022-12-15 |
Family
ID=70154868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/775,553 Abandoned US20220395737A1 (en) | 2019-11-22 | 2020-11-16 | Pool for performing physical activity in counter-current regime |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220395737A1 (en) |
EP (1) | EP4061497A1 (en) |
IT (1) | IT201900021990A1 (en) |
WO (1) | WO2021099913A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070271693A1 (en) * | 2004-09-24 | 2007-11-29 | Yotsuyanagi Co., Ltd. | Movable Floor Pool and Method of Cleaning Movable Floor Pool |
US8739322B2 (en) * | 2009-02-24 | 2014-06-03 | Georg Hof | Flow channel in which water is caused to flow by means of a delivery device disposed in a circulation line |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2035835A (en) | 1934-09-29 | 1936-03-31 | Raber Heinrich | Swimming bath |
DE2237800A1 (en) * | 1972-08-01 | 1974-02-14 | Rupert Burgmair | SPACE-SAVING HOME POOL |
US5005228A (en) | 1985-09-10 | 1991-04-09 | Swimex Systems, Inc. | Flow controlling |
JPH0257276A (en) * | 1988-08-22 | 1990-02-27 | Ishikawajima Harima Heavy Ind Co Ltd | Round current type water tank |
KR900003499A (en) * | 1988-08-31 | 1990-03-26 | 이나바 고오사꾸 | Upper Water Flow Circulation Pool |
FR2702508B1 (en) * | 1993-03-08 | 1995-05-24 | France Reval | Device for training and / or re-educating people in an aquatic environment and associated re-education method. |
CN1084422C (en) * | 1995-12-31 | 2002-05-08 | 许青 | Counter-current swimming pool |
US8074304B1 (en) * | 2008-04-11 | 2011-12-13 | Snyder Christa J | Aqua therapy and recreation spa with interchangeable exercise equipment |
-
2019
- 2019-11-22 IT IT102019000021990A patent/IT201900021990A1/en unknown
-
2020
- 2020-11-16 EP EP20824635.5A patent/EP4061497A1/en not_active Withdrawn
- 2020-11-16 US US17/775,553 patent/US20220395737A1/en not_active Abandoned
- 2020-11-16 WO PCT/IB2020/060756 patent/WO2021099913A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070271693A1 (en) * | 2004-09-24 | 2007-11-29 | Yotsuyanagi Co., Ltd. | Movable Floor Pool and Method of Cleaning Movable Floor Pool |
US8739322B2 (en) * | 2009-02-24 | 2014-06-03 | Georg Hof | Flow channel in which water is caused to flow by means of a delivery device disposed in a circulation line |
Also Published As
Publication number | Publication date |
---|---|
IT201900021990A1 (en) | 2021-05-22 |
EP4061497A1 (en) | 2022-09-28 |
WO2021099913A1 (en) | 2021-05-27 |
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