AU2014201228B2 - Physical Exercise Training Techniques - Google Patents

Abstract

The present invention relates to a cover assembly including a frame including at least one inflatable portion. The inflatable portion has an inner bladder and an outer sleeve. At least one cover is supported by the frame to define a chamber. Adjustment means is provided for adjusting the air conditions (e.g. pressure or oxygen content) of the pressure chamber. 0 VA

Description

VA PHYSICAL EXERCISE TRAINING TECHNIQUES TECHNICAL FIELD

[0001] The present invention generally relates to physical exercise training. The present invention has particular, although not exclusive application to swimming.

BACKGROUND

[0002] The reference to any prior art in this specification is not, and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge.

[0003] Elite sports is a serious business with athletes seeking every opportunity to gain a competitive edge over their rivals. Altitude training can be undertaken prior to major competitions whereby some endurance athletes train for several weeks in the mountains at high altitude. However, amateur athletes are often unable to afford the time and money involved with such altitude training.

[0004] A solution to this problem is disclosed in PCT/AU2012/000523 which involves the use of an assembly with a frame which has at least one inflatable portion and least one cover being supported by the frame to define a chamber. The oxygen level inside the chamber can be adjusted to simulate high altitude conditions. The frame is typically made of Poly Vinyl Chloride (PVC). The cover is usually made of transparent plastic. However, there are several problems with the manufacture of these assemblies.

[0005] The strength of the frame is directly related to the amount of pressure inside the inflatable portions of the assembly. The frame will be stronger if it has a greater level of inflation. However, if the frame is over-inflated, it will burst at the seams.

[0006] Prior art frames only have a narrow pressure tolerance range. If a user inflates the frame to the maximum level and then leaves the assembly in the sun, the heat can cause the gas in the frame to expand to the point where the frame bursts.

[0007] The larger the inflatable module, the more PVC is required to achieve structural stability of the frame. The diameter of the inflatable portions of the frame must be increased to spread an increased load over a greater area. This increases the weight of the assembly, which increases shipping costs. It also makes the collapsed assembly less compact and less portable. In addition, it also increases the cost of production of the assembly.

[0008] A bulky frame also decreases the aesthetic appeal of the assembly. A large proportion of the transparent cover can be obscured by a bulky frame, which minimizes the amount of light which enters the assembly. This can decrease the enjoyment of an athlete who may train in the assembly for several hours per day.

[0009] It is an object of the present invention to overcome or substantially ameliorate the above mentioned problems with prior art assemblies.

SUMMARY OF THE INVENTION

[0010] According to one aspect of the present invention, there is provided a cover assembly including:

a frame including at least one inflatable portion, the inflatable portion having an inner bladder and an outer sleeve;

at least one cover for being supported by the frame to define a chamber; and

adjustment means for facilitating adjustment of the air conditions in the chamber compared with air conditions external the chamber.

[0011] The cover may cover an exercise training area.

[0012] The frame may be formed from an interconnected three-dimensional (3D) lattice of inflatable tubes. The frame may include wall frame portions. Each wall frame portion form a single-dimensional array. The frame may include roof portion. The roof portion form a rectangular multi-dimensional array.

[0013] The cover may include a single sheet or multiple sheets of material for affixing to the frame. The cover may include removable side panels of material for affixing within endless side portions of the frame. The cover may partition internal wall frame portions. The material may be air impervious and formed from transparent polymeric material. The cover may be affixed to the frame using a hook-and-loop (e.g. VelcroTM) fastening arrangement.

[0014] The exercise training area may include one or more training lanes. The lanes may be swimming or running lanes. Each wall portion may be aligned along a side of a training lane.

[0015] The cover assembly may further include one or more end strip doors. Each strip door may include a number of hanging PVC strips.

[0016] The frame may include a plurality of handles to facilitate handling when deflated. The frame may include a plurality of fastening means to which backstroke flags can be transversely fastened across the assembly. Each fastening means may include a ring.

[0017] The assembly may further include one or more conduits for conveying pressurised air into or out of the cover assembly. The assembly may further include a pump for pumping air in or out of the conduits. The assembly may further include suspension means for suspending the conduits. In use, the training cover assembly may form at least one internal pressurized chamber.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient information for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding Summary of the Invention in any way. The Detailed Description will make reference to a number of drawings as follows:

[0019] Figure la is a side view of a swimming pool cover assembly in accordance with an embodiment of the present invention;

[0020] Figure lb is a upper perspective view of the swimming pool cover assembly of Figure la;

[0021] Figure le is a lower perspective view of the swimming pool cover assembly of Figure la;

[0022] Figure ld is an end view of the swimming pool cover assembly of Figure la;

[0023] Figure 2 is a perspective view of a bed cover assembly in accordance with another embodiment of the present invention;

[0024] Figure 3 is a perspective view of a seat cover assembly in accordance with another embodiment of the present invention; and

[0025] Figure 4 is a perspective view of inflatable dome cover assembly including the swimming pool cover assembly of Figure 1.

[0026] Figure 5 shows a perspective view of an assembly according to an embodiment of the present invention, comprising a bladder, outer sleeve and casing connecting a frame to a cover.

[0027] Figure 6 shows a close up view of the casing of Figure 5.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0028] According to an embodiment of the present invention, there is provided a cover assembly 2 which forms a pressurized chamber for swimming training as shown in Figure 1. The swimming pool cover assembly 2 includes an inflatable frame 4 formed from an interconnected three-dimensional (3D) lattice of inflatable tubes. The cover assembly 2 further includes a cover 6 supported by the frame 4 to cover a swimming pool (not shown). The cover 6 partitions off the pool from its surrounds so that the chamber can be pressurized to simulate altitude training. Advantageously, the cover assembly 2 can be conveniently set up at a local pool to enable athletes to altitude train without needing to go to the trouble and expense of traveling to the mountains.

[0029] The entire frame 4 can be inflated at a single inflation point as the inflatable tubes are in fluid communication with each other. As can best be seen in Figure 1c, the frame 4 includes three wall frame portions 8a, 8b, 8c with each wall frame portion 8 forming a single-dimensional array. Each adjacent pair of wall frame portions 8 are aligned along the sides of a respective swimming lane. As can best be seen in Figure 1b, the frame 2 also includes an inflatable roof portion 10 forming a rectangular multi-dimensional array.

[0030] The cover 6 includes multiple panels of sheet material for releasably affixing with a hook-and-loop (e.g. VelcroTM) fastening arrangement tothe top and sides of the frame 4. In particular, the cover 6 includes a roof sheet 12 for covering the roof portion 10 and removable side panels 14 for affixing within endless rectangular portions of the external and internal (i.e. partitioning) wall frame portions 8. The sheet material is air impervious and formed from transparent polymeric or plastic material.

[0031] The cover assembly 2 further includes four strip doors 26 at its end and in register with the swimming lanes. Each strip door 26 includes a number of hanging PVC strips 28. In addition, some of the side panels 14 can have entry/exit slits 30 which can be releasably closed with a hook-and-loop (e.g. VelcroTM) fastening arrangement.

[0032] The frame 4 includes handles 32 to facilitate handling when the fame 4 is deflated. The handles are located at the corners of each endless rectangular portion of the external wall frame portions 8a, 8c. The frame 4 includes fastening rings 34 through which backstroke flags can be transversely fed and fastened across the inside of the cover assembly 2. The inflatable frame 4 is formed by stitching, gluing or thermal welding polyvinyl chloride polyvinyl chloride (PVC) material together. In practice, a blower can be continually required to inflate the inflatable frame 4 as air leaks from the frame 4.

[0033] The cover assembly 2 further includes conduits 50 suspended in the pressure chamber from the top of respective wall frame portions 8. The conduits convey air into and out of the cover assembly 2 to adjust the air conditions within the internal chamber as required to simulate altitude (e.g. up to 3.5 km above sea level). The cover assembly 2 further includes a pump 52 for pumping air in or out of the internal chamber via the conduits 50. Typically, the pump 52 is a blower and blows air of reduced oxygen content (compared with the surrounding atmosphere) into the chamber. However, the internal air pressure of the chamber is only slightly greater than the external atmospheric pressure. In this manner, the blower takes in air from the surrounding atmosphere, and adjusts the oxygen content in the air, before providing the air into the chamber.

[0034] The cover assembly 2 as long enough to completely cover a 25 metre or 50 metre swimming pool. The separation between each adjacent pair of wall frame portions 8 accommodates a swimming lane.

[0035] Figure 2 shows a bed cover assembly 200 in which a king sized bed or exercise bike can be located. The bed cover assembly 200 includes an inflatable frame 202. The frame 202 is rectangular and a leg portion 204 of the frame includes a valve 206 through which air can be pumped during inflation. An oversized sheet cover 208 is sealingly fastened along each inflatable straight portion of the frame 202, and rests on the ground adjacent the frame 202 to facilitate sealing of the internal pressure chamber. Advantageously, the pressure chamber does not have an internal floor which could otherwise be breached by a leg of the bed.

[0036] The cover 208 is fitted with a one-way valve 210 (i.e. pressure adjustment means) for facilitating adjustment of the pressure in the pressure chamber with a connected pump. The cover 208 also includes a pair of re-sealable zip or loop-and-hook entrances 212a, 212b to gain access to the chamber.

[0037] Figure 3 shows a seat (e.g. lounge chair or couch) cover assembly 300. The assembly includes an inflatable frame 302 having a square base portion and two crisscrossed arch portions. Anchor lugs 304 are located at each corner of the base portion, and handles 306 extend from the frame 302 to facilitate handling.

[0038] The cover assembly 300 includes a transparent sheet cover 308 sealingly fastened along each inflatable portion of the frame 202. In addition, a transparent sheet floor 309 is sealingly fastened along each straight inflatable portion of the base of the frame 202. The cover 308 also includes a pair of re-sealable zip or loop-and-hook entrances 310a, 310b to gain access to the sealed internal chamber. A valve is provided in the cover 308 to facilitate pressurizing the chamber with an external vacuum pump.

[0039] Advantageously, the embodiments of Figures 2 and 3 enable athletes to undergo altitude conditioning when relaxing at home in bed or on a seat, or using an exercise bike.

[0040] Figure 4 shows an inflatable dome cover assembly 400 including dome lattice framework 402 which can be provided over the swimming pool cover assembly 2. The framework 402 includes a number of arched and straight inflatable portions which are in fluid communication with each other. Individual roof panels 404 can be fitted within each cell of the lattice framework 402. Alternatively, a flaccid sheet cover can cover the framework 402. The dome cover assembly 400 further includes a built-in pump storage container 406 for containing the pump 52. In turn, the pump fills the inflatable portions of the framework 402 and swimming pool cover assembly 2, and adjusts the oxygen content and pressure inside the chambers within the swimming pool cover assembly 2.

[0041] A person skilled in the art will appreciate that many embodiments and variations can be made without departing from the ambit of the present invention.

[0042] In the preferred embodiment, the pump adjusted the pressure and oxygen content of the air in the chamber. In a further embodiment, the pump may also adjust the humidity, temperature or other like air conditions.

[0043] In one embodiment, the inflatable tubes (i.e. portions) of the frame 4 may be partitioned into isolated sections which are separately inflatable so that a puncture or leak in one section will not result in deflation of the other sections.

[0044] In one embodiment, the cover 6 can consist of a single sheet of material.

[0045] In one embodiment, the cover assembly 2 can be located over a running track to cover running lanes. The cover assembly 2 may be a 45m x 1.6m x 2.2m long unit designed for hypoxic sprint training. In one embodiment, the present invention can be utilised in an animal exercise training area for training animals such as horses.

[0046] In one embodiment, the cover assembly 2 includes at least one internal partition to form more than one internal pressure chamber in register with respective lanes, with each chamber able to be kept at a different pressure.

[0047] Figure 5 shows an assembly 500 according to another embodiment of the present invention. The assembly 500 has an internal bladder 502, which can be made from rubber (e.g. Latex TM), or any other material which is stretchable and airtight. The internal bladder 502 is positioned within a sleeve 504, which prevents the over-inflation of the internal bladder 502 and forms the frame of the assembly 500. A cover 506 is held in position on the frame of the assembly 500 by means of a casing 508, which is shown in more detail in Figure 6.

[0048] The bladder 502 is constructed in one piece. However, it can also be constructed in separate sections. The advantage a one piece bladder is that there is single inflation point 510 for the user. Nevertheless, the advantage of having separate sections is that if there is a puncture in one section, other sections of the cover assembly do not deflate. Simple frames typically have one bladder and more complex frames typically have multiple bladders.

[0049] The sections of bladder 502 can be joined together at junctions by heat welding. A metal ring (not shown) can temporarily fed into the bladder 502 where two sections are to be welded together to open the bladder and provide a backing for the heat weld. The metal ring can then be manually extracted from the bladder 502 after the junction has been welded.

[0050] The bladder 502 is sown into the sleeve 504. However, the bladder could be wrapped inside the sleeve and joined together using Velcro TM, for example. The site of the join is a weak-point in the sleeve. A sown join is stronger than a Velcro or zipped join.

[0051] The cover 506 is placed over the frame of the assembly 500. A zip 514 can close the casing 508 over the bladder 502 to hold the frame in a fixed position relative to the cover 506. The casing 508 is attached to the cover 506 using glue or a heat weld.

[0052] In other embodiments of the invention, the cover could be glued to the frame in sections or attached by VelcroTM to the frame in sections and the casing could also encase the frame using Velcro TMjoins or stitching.

[0053] An advantage of the present invention over the prior art is that the bladder 502 can be inflated at high pressure, which creates greater rigidity and strength to the frame. The bladder 502 is prevented from bursting by the sleeve 504. In prior art embodiments of the invention, the frame can only be inflated to a relatively low pressure otherwise the frame will burst. The combination of the bladder 502 and the sleeve 504 enable a smaller diameter frame to be constructed, which decreases the overall weight of the structure.

[0054] A significant reduction in diameter can be achieved using the bladder 502 and sleeve 504. For example, the diameter of the support members of the present invention may be 50% of the diameter of a prior art support member shown in Figure 4. The present invention therefore uses less fabric than the prior art, which decreases the weight of the assembly and the cost of its production.

[0055] The assembly of Figure 2 may have a recommended inflation level of 7 kPa, for example. However, the embodiment of the invention shown in figure 5 may have a recommended inflation level of 40 kPa. Increasing the pressure increases the strength of the frame. Prior art assemblies are not designed to withstand high pressure and therefore the strength of those assemblies has greater limitations. The embodiment of the invention shown in Figure 5 is designed to take a higher pressure than the embodiment of Figure 2.

[0056] The sleeve 504 is made out of a polyester fabric. The fabric must be very strong to hold the bladder. In some cases, two sheets of polyester fabric are joined together to increase the strength the sleeve.

[0057] The bladder 502 has a relief valve 512 (see Figure 5) to prevent the accidental over inflation of the assembly 500. A bladder 502 which is over-inflated could burst or break the seams of the sleeve 504. The valve 512 can bleed excess air out of the bladder 502 until a predetermined pressure is reached and then the valve 512 will close. Large assemblies placed outdoors absorb a lot of heat, which expands the gas inside the frame of the assembly and may significantly increase the pressure. The relief valve 512 ameliorates this problem.

[0058] In compliance with the statute, the invention has been described in language more or less specific to structural or methodical features. It is to be understood that the invention is not limited to specific features shown or described since the means herein described comprises preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims appropriately interpreted by those skilled in the art.

Claims (19)

1. An athlete conditioning cover assembly including:

a frame including at least one inflatable portion, the inflatable portion having an inner bladder and an outer sleeve;

at least one cover for being supported by the frame to define a chamber; and

adjustment means for adjusting oxygen content of air in the chamber compared with air external the chamber.

2. A cover assembly as claimed in claim 1, wherein the frame is formed from an interconnected three-dimensional (3D) lattice of inflatable tubes.

3. A cover assembly as claimed in claim 1, wherein the frame includes wall frame portions with each wall frame portion forming a single-dimensional array.

4. A cover assembly as claimed in claim 1, wherein the frame includes a roof portion forming a rectangular multi-dimensional array.

5. A cover assembly as claimed in claim 1, wherein the cover includes a single sheet or multiple sheets of material for affixing to the frame.

6. A cover assembly as claimed in claim 5, wherein the material is formed from polymeric material and is affixed to the frame using a hook-and-loop fastening arrangement.

7. A cover assembly as claimed in claim 1, wherein the cover includes removable side panels of material for affixing to endless side portions of the frame.

8. A cover assembly as claimed in claim 1, including a partition for partitioning the inside of the assembly into respective chambers.

9. A cover assembly as claimed in claim 1, wherein the cover is dimensioned to cover an exercise training area including one or more training lanes.

10. A cover assembly as claimed in claim 9 and dimensioned to completely cover at least one swimming lane of a 25 metre or 50 metre pool.

11. A cover assembly as claimed in claim 9, wherein adjacent pairs of wall frame portions of the frame can be aligned along the sides of a respective training lane.

12. A cover assembly as claimed in claim 1, further including one or more end strip doors with each strip door including a number of hanging strips.

13. A cover assembly as claimed in claim 1, wherein the frame includes handles to facilitate handling of the frame when deflated.

14. A cover assembly as claimed in claim 1, wherein the frame includes fastening means to which backstroke flags can be transversely fastened across the assembly.

15. A cover assembly as claimed in claim 1, wherein the adjustment means includes one or more conduits for conveying air into or out of the chamber.

16. A cover assembly as claimed in claim 1, wherein the adjustment means includes a valve in fluid communication with the chamber.

17. A cover assembly as claimed in claim 1, wherein said cover is oversized to facilitate sealing of the chamber adjacent the frame.

18. A cover assembly as claimed in claim 1, further including a bed, seat or exercise bike within the chamber, and/or a floor sealably engaged with the frame, and/or an inflatable dome lattice framework for covering the frame.

19. A cover assembly as claimed in claim 1, wherein the cover includes at least one re sealable entrance to gain access to the chamber.