WO2001060465A1 - Bottom fixing strip for flexible wall enclosure - Google Patents
Bottom fixing strip for flexible wall enclosure Download PDFInfo
- Publication number
- WO2001060465A1 WO2001060465A1 PCT/AU2001/000146 AU0100146W WO0160465A1 WO 2001060465 A1 WO2001060465 A1 WO 2001060465A1 AU 0100146 W AU0100146 W AU 0100146W WO 0160465 A1 WO0160465 A1 WO 0160465A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- flexible
- strip
- enclosure
- flexible wall
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/022—Backstops, cages, enclosures or the like, e.g. for spectator protection, for arresting balls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/322—Stretching devices
Abstract
A fixing arrangement, and a flexible wall enclosure having such a fixing arrangement, which can enable simpler tensioning or maintenance of tension in a flexible wall of the enclosure, having a fixing strip (10, 12) for the bottom edge (16) of a flexible wall (15) of an enclosure, the fixing strip including a flexible strip for extending along a length of the bottom edge of the flexible wall; a plurality of attachments (25, 26) provided along the length of the flexible strip for selectively releasably attaching the bottom edge of the flexible wall to the strip thereby enabling initial tensioning of the flexible wall and engagement of the attachments to maintain the wall in its tensioned state and thereby also enabling subsequent further or re-tensioning of the flexible wall to maintain or increase the tension in the wall; and fastening means (30, 32) for fastening the flexible strip to the ground.
Description
BOTTOM FIXING STRIP FOR FLEXIBLE WALL ENCLOSURE
This invention relates to enclosures for enclosing an open space, such as an enclosure construction for enclosing a sporting court or arena, and particularly to details of the system
for fixing the walls of the enclosure. Although the invention has been particularly developed for use in the construction,
maintenance and functioning of "taut net enclosed sports courts" (TNESCs) and the
invention will be primarily described in relation to use in such enclosures, the invention may
also be applicable in other fields such as in relation to enclosures used in industrial
applications, for mining or agricultural work sites, or for enclosing other sites such as
emergency rescue sites, police investigation sites, and archeological sites.
TNESCs have been used in Australia and other countries for some years. They are
used as enclosures for various sports including indoor cricket, netball and soccer. They have
also been adapted for outdoor use.
The walls and ceilings of TNECs are made of high strength polymer netting usually
adapted from the type used for commercial fishing. The spun polymer cord used in the nets
is approximately 2mm in diameter. The cord is woven into an approximately square
arrangement of cells whose side length is 30mm-40mm. In the walls of TNESCs the square
cells are usually set on a diagonal giving the appearance of diamond shaped cells i.e. squares
rotated 45°.
The net walls and ceiling of the courts are held under tension by the action of cables
and springs located at the top of the walls.
The bottom edges of the walls are normally sewn to a cable which is in turn attached
to the floor at approximately 500mm centres. Net walls constructed in this way are subject to
rapid wear at the base as a result of players standing on and accidentally kicking the bottom
of the wall.
To aid installation, the net enclosures are usually prefabricated by cutting to size and
joining to the various cables which form the base and tops of the walls and the edges of the
ceiling.
During installation, the floor cable is usually fixed in position first and the walls and
ceiling lifted into position. This is an often difficult operation requiring considerable force.
Net tension is maintained by periodically tightening the springs at the top of the net.
This method has the disadvantage of allowing the net wall to gradually stretch higher
possibly interfering with lighting or building elements.
It is an object of the present invention to provide a fixing system for the bottom edge
of a flexible wall enclosure, and also to provide an enclosure having such a fixing system,
which is effective and can be relatively simple to use.
It is a further preferred object to provide a fixing arrangement, and a flexible wall
enclosure having such a fixing arrangement, which can enable simpler tensioning or
maintenance of tension in a flexible wall of the enclosure.
It is a further object of the present invention in a second aspect to provide a method of
providing and maintaining a tensioned flexible wall in an enclosure construction in an
effective and preferably simple manner.
According to a first aspect of the present invention there is provided a fixing strip for
the bottom edge of a flexible wall of an enclosure, the fixing strip including:
a flexible strip for extending along a length of the bottom edge of the flexible wall; a
plurality of attachments provided along the length of the flexible strip for selectively
releasably attaching the bottom edge of the flexible wall to the strip thereby enabling initial
j
tensioning of the flexible wall and engagement of the attachments to maintain the wall in its
tensioned state and thereby also enabling subsequent further or re -tensioning of the flexible wall to maintain or increase the tension in the wall; and fastening means for fastening the
flexible strip to the ground.
The attachments provided along the length of the flexible strip may comprise hooks
which are provided at spaced intervals along the length of the strip, the hooks facing in a
downwards direction in use, the bottom edge of the flexible wall having a plurality of
apertures so that the hooks can be selectively releasably engaged with the apertures in the
bottom edge of the wall to thereby retain the flexible wall under tension. The hooks are
preferably provided so that each hook faces outwardly relative to the inside of the enclosure
whereby people within the enclosure do not contact the point of the hook by contacting the
flexible strip from within the enclosure. The flexible wall, or at least the bottom edge
thereof, may be a flexible net and the apertures therein may comprise the open cells in the
netting material of which the net is composed.
The flexible strip may include a flexible belt which in use extends along the bottom
edge of the flexible wall and lies in a generally upright plane, the belt having an upper edge
where the plurality of the attachments are provided for releasably attaching the bottom edge
of the flexible wall and having a lower edge where the fastening means for fastening the
flexible strip to the ground are provided.
Preferably the fastening means for fastening the flexible strip to the ground comprises
hook formations which face outwardly relative to the inside of the enclosure, the hook
formations being arranged to releasably receive therein a cable which in use extends along
the ground and is held under tension and secured against being lifted from or being moved
substantially across the surface of the ground.
In one alternative possible embodiment, the fastening means for fastening the flexible
strip to the ground includes a plurality of individual fasteners provided at spaced intervals along the flexible strip and for being fastened directly to the ground. In this embodiment
each of the individual fasteners may be capable of flexing or hinging movement so as to yield with any flexing movement of the strip caused in use by lateral force being applied to
the strip.
The invention also provides an enclosure construction having at least one flexible
wall defining a side or end wall of the enclosure, the flexible wall having a bottom edge
extending along adjacent to the ground and being releasably attached to a fixing strip
according to the first aspect of the invention with the fixing strip in turn being fastened to the
ground by its fastening means so as to thereby retain the bottom edge of the flexible wall, the
flexible wall having a top edge portion, the enclosure construction further including
tensioning means applying tension to the flexible wall through attachment of the tensioning
means to the top edge portion.
In such an enclosure construction, the tensioning means may include tensioning
spring means provided at locations along the top edge portion of the wall, the tensioning
spring means applying tensile forces to the wall by acting between the top edge portion and
respective fixed points.
The enclosure construction may further include a structural frame of the enclosure,
the flexible wall being spaced inwardly from the frame relative to the inside area of the
enclosure so that a person contacting the tensioned flexible wall from inside of the enclosure
will be restrained by the wall against coming into contact with the frame, the tensioning
spring means acting between the fixed points which are provided by the frame and the top
edge portion of the wall.
According to a second aspect of the present invention there is provided a method of providing and maintaining a tensioned flexible wall in an enclosure construction having at least one flexible wall defining a side or end wall of the enclosure, the flexible wall having a
bottom edge extending along adjacent to the ground and having a top edge portion,
the method including the steps of:
providing a fixing strip which includes: a flexible strip extending along a length of the
bottom edge of the flexible wall; a plurality of attachments provided along the length of the
flexible strip for selectively releasably attaching the bottom edge of the flexible wall to the
strip: and fastening means for fastening the flexible strip to the ground,
tensioning the wall by applying a downward force at the bottom edge of the wall
and/or by applying an upward force at the top edge portion of the wall,
attaching the bottom edge of the wall to the fixing strip by means of the releasable
attachments provided along the fixing strip, and
fastening the fixing strip to the ground by means of the fastening means.
Possible and preferred features of the present invention will now be described with
particular reference to the accompanying drawings. However it is to be understood that the
features illustrated in and described with reference to the drawings are not to be construed as
limiting on the scope of the invention. In the drawings:
Fig. 1 shows an elevational view of a fixing strip according an embodiment of the
present invention in use.
Fig. 2 is a sectional view along the line II-II of Fig 1 , and
Fig. 3 is a view (similar to Fig. 2) of an alternative fastening means.
Referring to the drawings, the fixing strip 10 is used for fixing the bottom edge 16
(which expression is intended to cover not merely the extreme peripheral edge but also an
edge region) of the net wall 15. The net wall 15 extends vertically to define a wall or end of
an enclosure which has a frame 20 (only a small part of which is shown schematically) and. at the upper edge 17 of the wall 15 there are provided tensioning spring means 21 which
apply upward tensioning force to the wall 15. The fixing strip 10 includes a flexible strip, e.g. formed from a flexible belt 12 such as a fibre reinforced PVC belt. The belt 12 in use lies in a generally upright plane and has an
upper edge 13 where a plurality of attachments 25 are provided for releasably attaching the
bottom edge 16 of the wall 15 to the strip 1 1. The belt 12 can also be considered as a kick
band against which players using the enclosure as a sporting court or the like can impact
with reduced risk of injury and without damaging the wall.
The kick band can be formed from a tough and strong material such as fibre
reinforced PVC industrial belting usually but not necessarily from 100mm to 200mm in
width (high).
The attachments 25 comprise hooks 26 provided at spaced intervals along the top
edge 13 of the strip 11. The hooks 26 face in a downwards direction so that the hooks can
be selectively releasably engaged with the apertures 18, constituted by the open cells in the
netting material of which the wall 15 is composed. This enables the wall 15 to be retained
under tension. As shown in Fig 2, the hooks 26 face outwardly relatively to the inside of the
enclosure which in Fig 2 would be to the left side of the wall 15 so that players within the
enclosure will not contact the points 27 of the hooks 26 by contacting the strip 1 1 from
within the enclosure. As readily seen in the drawings, the hooks 26 can be retained in the
flexible strip 1 1 by having outwardly and upwardly directed hook formations 28 at their
lower ends passing through reinforced eyelets 29 spaced generally centrally in height along
the belt 12. It will be appreciated however that the attachment of the hooks 26 to the strip 11
could be achieved in other ways, preferably so that the form of attachment does not present a
shaip or dangerous surface on the inside of the enclosure.
During the first erection or assembly of the flexible wall enclosure, the extreme
bottom edges of the net wall 15 can be attached to the fixing strip 10 by means of the hooks
25 as shown in the drawings. The desired level of tension in the wall 15 can be achieved by adjustment of the tensioning spring means 21 at the top edge 17. However, after some time
period, the netting material can stretch and hence the desired level of tension within the wall
is not maintained. To restore the desired level of tension, the bottom edge 16 of the wall 15
can be disengaged from the attaching hooks 26 and by applying downward tension to the
bottom edge 16, the level of tension in the wall can be increased to the desired level
whereupon the hooks 26 are re-engaged with apertures 18 at a higher level in the bottom
edge 16. That is, for example, the higher level vertices 19a, 19b etc. of the open cells of the
net can be pulled down for engagement with the attaching hooks 25.
The fixing strip 10 also includes fastening means 30 for fastening the strip 10 to the
ground, the fastening means 30 being provided at the lower edge 14 of the strip 1 1. In the
illustrated embodiment the fastening means 30 comprises hook formations 31 which face
outwardly relative to the inside of the enclosure and upwardly, the hook formations 31
releasably receiving therein the cable 32 which in use extends along the ground and is held
under tension and is secured in a convenient manner against being lifted from or being
moved across the surface of the ground. The hook formations 31 can be attached to the belt
12 by smooth dome headed rivets 33 on the inside of the enclosure to avoid any potentially
injurious projection on that side of the belt 12.
The alternative fastening means 30 shown in Fig 3 comprises individual fasteners 35
provided, like the hook formations 31. at spaced intervals along the strip 10 and for being
fastened directly to the ground. The individual fasteners 35 are capable of flexing or hinging
movement, e.g. by being made of a strong flexible material, such as PVC strap so that it can
yield with any flexing movement of the strip 1 1 caused in use by lateral force applied to the
strip, e.g. by a player engaged in sporting activity within the enclosure coming into contact
with the fixing strip 10. As shown in Fig 3. the fastener 35 can be directly anchored to the
ground by anchor bolt 36 passing through washer 37. through the strap and into the ground.
In a yet further embodiment, which is not illustrated, the strip 1 1 may be attached to a
rigid structural element at the base of the frame of the enclosure, thereby avoiding the need to fasten directly to the floor, either by means of the individual fasteners 35 or by means of
the cable 32 being anchored to the floor.
The method of providing and maintaining a tensioned flexible wall in an enclosure
construction according to the second aspect of the present invention can be understood in its
preferred aspects from the preceding description in conjunction with the drawings.
It will be seen that the preferred embodiment of the invention described and
illustrated in relation to the drawings can have a number of functional and constructional
advantages including:
(a) the tension in the flexible wall can be adjusted simply by pulling the net wall
downwardly onto the hooks provided by the fixing strip;
(b) by enabling adjustment of tension in the net at the lower edge of the wall, the
top edges of the walls can be maintained at a constant height and clearance from adjacent
structures;
(c) the installation and periodic maintenance of the tensioned wall is considerably
simplified since the lower edge of the wall is hooked down after the top of the wall and
ceiling of the enclosure are already located in position;
(d) the problem of considerable damage or wear at the lower edge of the wall can be reduced as the netting material is replaced by the tougher belt at the floor level and up to a height of perhaps 100mm to 200mm above the floor.
It is to be understood that various alterations, modifications and/or additions may be
made to the features of the possible and preferred embodiment(s) of the invention as herein described without departing from the spirit and scope of the invention.
Claims
1. A fixing strip for the bottom edge of a flexible wall of an enclosure, the fixing strip
including: a flexible strip for extending along a length of the bottom edge of the flexible wall; a
plurality of attachments provided along the length of the flexible strip for selectively releasably attaching the bottom edge of the flexible wall to the strip thereby enabling initial
tensioning of the flexible wall and engagement of the attachments to maintain the wall in its
tensioned state and thereby also enabling subsequent further or re-tensioning of the flexible
wall to maintain or increase the tension in the wall; and fastening means for fastening the
flexible strip to the ground.
2. A fixing strip as claimed in claim 1 wherein the attachments provided along the
length of the flexible strip comprise hooks which are provided at spaced intervals along the
length of the strip, the hooks facing in a downwards direction in use, the bottom edge of the
flexible wall having a plurality of apertures so that the hooks can be selectively releasably
engaged with the apertures in the bottom edge of the wall to thereby retain the flexible wall
under tension.
3. A fixing strip as claimed in claim 2 wherein the hooks are provided so that each hook
faces outwardly relative to the inside of the enclosure whereby people within the enclosure
do not contact the point of the hook by contacting the flexible strip from within the
enclosure.
4. A fixing strip as claimed in claim 2 or 3 wherein the flexible wall, or at least the
bottom edge thereof, is a flexible net and the apertures therein comprise the open cells in the
netting material of which the net is composed.
5. A fixing strip as claimed in any one of the preceding claims wherein the flexible strip
includes a flexible belt which in use extends along the bottom edge of the flexible wall and
lies in a generally upright plane, the belt having an upper edge where the plurality of the
attachments are provided for releasably attaching the bottom edge of the flexible wall and having a lower edge where the fastening means for fastening the flexible strip to the ground
are provided.
6. A fixing strip as claimed in any one of the preceding claims wherein the fastening
means for fastening the flexible strip to the ground comprises hook formations which face
outwardly relative to the inside of the enclosure, the hook formations being arranged to
releasably receive therein a cable which in use extends along the ground and is held under
tension and secured against being lifted from or being moved substantially across the surface
of the ground.
7. A fixing strip as claimed in any one of claims 1 to 5 wherein the fastening means for
fastening the flexible strip to the ground includes a plurality of individual fasteners provided
at spaced intervals along the flexible strip and for being fastened directly to the ground.
8. A fixing strip as claimed in claim 7 wherein each of the individual fasteners is
capable of flexing or hinging movement so as to yield with any flexing movement of the
strip caused in use by lateral force being applied to the strip.
9. An enclosure construction having at least one flexible wall defining a side or end wall
of the enclosure, the flexible wall having a bottom edge extending along adjacent to the
ground and being releasably attached to a fixing strip as claimed in any one of the preceding
claims with the fixing strip in turn being fastened to the ground by its fastening means so as
to thereby retain the bottom edge of the flexible wall, the flexible wall having a top edge portion, the enclosure construction further including tensioning means applying tension to
the flexible wall through attachment of the tensioning means to the top edge portion.
10. An enclosure construction as claimed in claim 9 wherein the tensioning means
includes tensioning spring means provided at locations along the top edge portion of the
wall, the tensioning spring means applying tensile forces to the wall by acting between the
top edge portion and respective fixed points.
1 1. An enclosure construction as claimed in claim 10 and further including a structural frame of the enclosure, the flexible wall being spaced inwardly from the frame relative to the
inside area of the enclosure so that a person contacting the tensioned flexible wall from
inside of the enclosure will be restrained by the wall against coming into contact with the
frame, the tensioning spring means acting between the fixed points which are provided by
the frame and the top edge portion of the wall.
12. A method of providing and maintaining a tensioned flexible wall in an enclosure
construction having at least one flexible wall defining a side or end wall of the enclosure, the
flexible wall having a bottom edge extending along adjacent to the ground and having a top
edge portion,
the method including the steps of:
providing a fixing strip which includes: a flexible strip extending along a length of the
bottom edge of the flexible wall: a plurality of attachments provided along the length of the
flexible strip for selectively releasably attaching the bottom edge of the flexible wall to the
strip; and fastening means for fastening the flexible strip to the ground,
tensioning the wall by applying a downward force at the bottom edge of the wall
and/or by applying an upward force at the top edge portion of the wall, attaching the bottom edge of the wall to the fixing strip by means of the releasable attachments provided along the fixing strip, and
fastening the fixing strip to the ground by means of the fastening means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2001237110A AU2001237110A1 (en) | 2000-02-15 | 2001-02-15 | Bottom fixing strip for flexible wall enclosure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPQ5591 | 2000-02-15 | ||
| AUPQ5591A AUPQ559100A0 (en) | 2000-02-15 | 2000-02-15 | Kick band and net tension device for taut net enclosed sports court |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001060465A1 true WO2001060465A1 (en) | 2001-08-23 |
Family
ID=3819707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AU2001/000146 WO2001060465A1 (en) | 2000-02-15 | 2001-02-15 | Bottom fixing strip for flexible wall enclosure |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AUPQ559100A0 (en) |
| WO (1) | WO2001060465A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1036106C2 (en) * | 2008-10-22 | 2009-07-20 | Ijslander B V | Ball catcher for use in soccer game, has horizontal beams placed between pillars to form frame, where flexible cables are stretched between beams to form flexible wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082271A (en) * | 1976-04-29 | 1978-04-04 | Arthur Lee Martin | Tennis practice and teaching rebounder |
| DE2819935A1 (en) * | 1978-05-06 | 1979-11-15 | Dieter W Gauss | Tubular holding for resilient net fencing - has supporting tube and clamping profile joined by screws after stretching |
| AU3006289A (en) * | 1988-02-22 | 1989-06-08 | Kruger Enterprises Pty Ltd. | Shade cloth connectors |
| US4887626A (en) * | 1987-01-30 | 1989-12-19 | Pierre Dalo | Stretched cloth fixing device |
| US5393051A (en) * | 1992-06-30 | 1995-02-28 | Forster Inc. | Adjustable net |
-
2000
- 2000-02-15 AU AUPQ5591A patent/AUPQ559100A0/en not_active Abandoned
-
2001
- 2001-02-15 WO PCT/AU2001/000146 patent/WO2001060465A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082271A (en) * | 1976-04-29 | 1978-04-04 | Arthur Lee Martin | Tennis practice and teaching rebounder |
| DE2819935A1 (en) * | 1978-05-06 | 1979-11-15 | Dieter W Gauss | Tubular holding for resilient net fencing - has supporting tube and clamping profile joined by screws after stretching |
| US4887626A (en) * | 1987-01-30 | 1989-12-19 | Pierre Dalo | Stretched cloth fixing device |
| AU3006289A (en) * | 1988-02-22 | 1989-06-08 | Kruger Enterprises Pty Ltd. | Shade cloth connectors |
| US5393051A (en) * | 1992-06-30 | 1995-02-28 | Forster Inc. | Adjustable net |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1036106C2 (en) * | 2008-10-22 | 2009-07-20 | Ijslander B V | Ball catcher for use in soccer game, has horizontal beams placed between pillars to form frame, where flexible cables are stretched between beams to form flexible wall |
Also Published As
| Publication number | Publication date |
|---|---|
| AUPQ559100A0 (en) | 2000-03-09 |
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