Note: Descriptions are shown in the official language in which they were submitted.
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WATER SLIDE
Related Application
The application is a divisional application of Canadian
Patent application no. 2,690,687 and claims priority from therein.
Field
The invention relates in general to water slide rides, and
more particularly, to a water slide ride having a sliding wall.
Background
Water slides are popular ride attractions for water parks,
theme parks, family entertainment centers and destination resorts.
Water slides not only offer welcome relief from the summer heat,
they also provide an exciting and entertaining diversion from
conventional pool and/or ocean bathing activities.
In one type of water slide, a bather or rider slides his
body and/or a flexible riding mat, tube or raft ("ride vehicle") along a
downward-inclined sliding surface defined by a flume or water channel
that bends, twists and turns following a predetermined ride path. The
flume also typically carries a flow of water from a starting pool at
some desired higher elevation to a landing pool or run-out at a desired
lower elevation. The water is typically continuously recirculated from
the lower elevation to the higher elevation using one or more pumps and
then continuously falls with gravity from the higher elevation to the
lower elevation flowing along the slide/flume path. The water provides
cooling fun for the ride participants, and also provides a lubricious
film or fluid between the rider/vehicle and the ride surface so as to
increase the speed of the rider down the flume path.
The popularity of water slides has increased dramatically
over the years, as they have proliferated and evolved into
ever larger and more exciting rides. For example,
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see U.S. patent no. 6,857,964, issued on April 22, 2004, entitled
"Reducing Radius Slide Feature". Nevertheless, park patrons
continue to demand and seek out more and more exciting and
stimulating ride experiences. Thus, there is an ever present
demand and need for different and more exciting water slide
designs that offer riders a new and unique ride experience and
that give park owners the ability to draw larger and larger
crowds to their parks.
Summary of the Invention
According to a broad aspect, a slide feature adapted to
carry one or more riders and/or ride vehicles sliding thereon
comprises: a sliding surface having an entry end and an exit end;
the sliding surface comprising a wall defined by a portion of a
side of a funnel shape, tilted sideways, the wall comprising a
top and a bottom; the bottom of the wall comprising a lowermost
surface of the sliding surface and being horizontal or descending
from the entry end to the exit end; the top of the wall curving
upward from the lowermost surface past an angle of 90 degrees to
the horizontal; wherein a radius of curvature of the sliding
surface tapers from the entry end to the exit end.
In some embodiments, the radius of curvature of the
sliding surface at the entry end is substantially larger than the
radius of curvature of the sliding surface at the exit end.
In some embodiments, the entry end of the sliding
surface further comprises an entry slide portion adapted to
direct the riders/vehicles onto the sliding surface with
sufficient tangential and axial velocity components for at least
some of the riders/vehicles to travel up the wall at least
partially above an angle of 90 degrees to the horizontal.
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In some embodiments, the funnel shape is a right
angle funnel shape.
In some embodiments, the entry end of the sliding
surface further comprises an entry slide portion adapted to
direct the riders/vehicles onto the sliding surface with
predetermined expected tangential and axial velocity
components.
In some embodiments, the slide feature further
comprises an entry at the entry end and an exit at the exit end
wherein the exit is less than 1/2 of the width of the lowermost
surface of the wall.
In some embodiments, the exit is less than 1/3 of the
width of the lowermost surface of the wall.
In some embodiments, the entry is less than 1/3 of
the width of the lowermost surface of the wall.
In some embodiments, the top of the wall is
substantially ellipsoid.
In some embodiments, the top of the wall is
substantially linear.
In some embodiments, the sliding surface further
comprises an outwardly curved safety wall along at least a
portion of the wall for retaining riders/vehicles on the
sliding surface.
In some embodiments, the radius of curvature of the
sliding surface at the entry end is between about 10 and 50
feet.
In some embodiments, the radius of curvature of the
sliding surface at the entry end is about 30 feet.
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In some embodiments, the radius of curvature of the
sliding surface at the exit end is between about 2 and 10 feet.
In some embodiments, the radius of curvature of the
sliding surface at the exit end is about 6 feet.
In some embodiments, the ratio of the radius of
curvature of the entry end and the exit end is between about
8:1 and 3:1.
In some embodiments, the ratio of the radius of
curvature of the entry end and the exit end is between about
6:1 and 4:1.
In some embodiments, the ratio of the radius of
curvature of the entry end and the exit end is about 5:1.
In some embodiments, the lowermost surface of the
sliding surface is inclined from horizontal descending from the
entry end to the exit end at an angle of between about 0 and 30
degrees from horizontal.
In some embodiments, the lowermost surface of the
sliding surface is inclined from horizontal descending from the
entry end to the exit end at an angle of about 5 degrees from
horizontal.
In some embodiments, the height of the wall is about
40 feet.
According to a broad aspect, a slide feature adapted
to carry one or more riders and/or ride vehicles sliding
thereon comprises a curved sliding wall having an entry end, an
exit end, a bottom and a top, the sliding wall being horizontal
or tilted downward from the entry end to the exit end at an
angle relative to horizontal, a.longitudinal axis extending
along the bottom of the sliding wall, an equator line on the
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sliding wall, the longitudinal axis and the equator line defining a
plurality of pairs of points separated by a semi-circular arc of
90 degrees, wherein the semi-circular arcs have a radius of
curvature that reduces from the entry end to the exit end of the
slide feature.
In some embodiments, at least some riders and/or ride
vehicles have sufficient velocity to travel at least partially above
the equator line.
According to a broad aspect, a slide feature adapted to
carry one or more riders and/or ride vehicles sliding thereon
comprises: a sliding surface having an entry at a first end and an
exit at a second end; the sliding surface comprising a wall having a
top end and a bottom end; the bottom end of the wall comprising a
lowermost surface of the sliding surface and being horizontal or
descending from the entry end to the exit end, the lowermost surface
having a width; the top of the wall curving upward from the
lowermost surface past an angle of 90 degrees to the horizontal;
wherein a radius of curvature of the sliding surface decreases from
the entry end to the exit end; and wherein the exit is less than 1/3
of the width of the lowermost surface of the wall.
In some embodiments, the entry is less than 1/3 of the
length of the lowermost surface of the wall.
In some embodiments, the length of the lowermost surface
is about 40 feet and the width of the exit is about 14 feet.
According to a broad aspect, a slide feature adapted to
carry one or more riders and/or ride vehicles sliding thereon
comprises: a sliding surface defining a predetermined forward slide
path; the sliding surface comprising an entry, a first portion, a
second portion and an exit; the first portion being upwardly
inclined from the entry, laterally curved outward and extending
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forwardly; the second portion being downwardly inclined to the exit,
laterally curved outward opposite to the first portion and extending
forwardly; wherein the first portion connects to the second portion
which is forward of the first portion.
In some embodiments, the first portion is upwardly
inclined at a 4 to 12 percent slope and the second portion is
downwardly inclined at a 4 to 12 percent slope.
In some embodiments, the first portion and the second
portion together define an S-type curve.
In some embodiments, the sliding surface has a curved
concave cross section with side walls to guide the rider along the
ride path.
In some embodiments, the incline and curvature of the
sliding surfaces are adapted to cause at least some of the riders
and/or ride vehicles to travel at least partly on the side walls.
Brief Description of the Drawings
Embodiments will now be described with reference to the
attached drawings in which:
Figure 1 is a perspective view of a water slide feature
according to a first embodiment;
Figure 2 is a front view thereof;
Figure 3 is a side view thereof;
Figure 4 is a perspective view of a water slide
incorporating the water slide feature of the first embodiment;
Figure 5 is a front view of a water slide feature
according to a second embodiment;
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Figure 6 is a side view of a water slide feature
according to a third embodiment; and
Figure 7 is a top view of the water slide feature of
Figure 6.
Detailed Description
Figures 1, 2 and 3 depict a water slide feature 10.
The water slide feature 10 includes a sliding surface 12. The
sliding surface 12 has an entry 14 and an exit 16. The entry
14 is at an entry end 15 of the sliding surface 12 and the exit
16 is at and opposite exit end 17 of the sliding surface 12.
The entry 14 and the exit 16 are both positioned on the same
side of the sliding surface 12. In other words, the entry 14
and the exit 16 lie substantially in opposite directions but
may be angled outward. For example, the entry 14 may be angled
approximately 10 to 15 degrees outward from the entry end 15
and the exit 16 may be angled about 5 degrees outward from the
exit end 17.
The sliding surface 12 comprises a wall 18. The wall
18 includes a bottom 20, and equator line 22 and a top 24. A
cone or funnel shape 26 in stippled lines has been added to
Figure 1 to aid in describing the shape of the sliding surface
12. It will be understood that the complete cone or funnel
shape 26 is not part of the water slide feature 10. The water
slide feature 10 comprises only what is shown in solid lines.
The funnel shape 26 tapers from a wide end 28 to a
narrow end 30. In this embodiment, the funnel shape 26 is a
right angle funnel shape; however, non-right angle funnel
shapes may form the basis of the shape of the sliding surface
12 of the water slide feature 10. The wide end 28 of the
funnel shape 26 is at the entry end 15 of the sliding surface
12 and the narrower end 30 of the funnel shape 26 is at the
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exit end 17 of the sliding surface 12. The shape of the wall
18 is defined by the shape of the funnel shape 26. In
particular, the wall 18 follows a shape which is a portion of
the shape of the funnel shape 26. The wall 18 starts at a
longitudinal axis defined by the bottom 20, which is a line
down a side of the funnel shape 26. The wall 18 extends up
following a side of the funnel shape 26 up past a 90 degree
angle to the horizontal which may also be at a 90 degree angle
to the longitudinal axis. For example, the wall may encompass
an approximately 105 degree portion of the funnel shape 26. In
the present embodiment, which is based on a right angle funnel,
the longitudinal axis 20 and the equator line 22 define a
plurality of pairs of points separated by a semi-circular arc
of 90 degrees. The semi-circular arcs have a radius of
curvature that reduces from the entry end 15 to the exit end 17
of the slide feature 10.
The bottom 20 is a lowest edge of the wall 18. The
bottom 20 may be inclined slightly downward from the entry end
15 to the exit end 17 as best can be seen in Figures 2 and 3.
In some embodiments, the lowermost surface of the sliding
surface is inclined from horizontal descending from the entry
end to the exit end at an angle of between 0 and 45 degrees
from the horizontal. In some embodiments, the angle is about 5
degrees.
From the bottom 20 the wall 18 curves upward along a
shape defined by the side of the funnel shape 26 up to a top
24. The entire shape of the wall 18 may be defined by the
shape of the funnel shape 26. It will be appreciated, however,
that the wall 18 is not the entire length of the side of the
funnel shape 26. The wall 18 is only a portion of the side of
the funnel shape 26.
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The wall 18 extends past the equator line 22. The
equator line 22 defines a line upon which the wall 18 is at a
90 degree angle or perpendicular to the horizontal. Above the
equator line 22, as the wall 18 follows the funnel shape 26,
the wall 18 curves inward and is at an angle of more than 90
degrees to the horizontal.
The funnel shape 26 has an axis of curvature 32. The
axis of curvature 32 is the geometric axis of curvature about
which the funnel shape 26 is curved. In a right angle funnel,
the axis extends through the centre of the funnel. It will be
appreciated that, because the wall 18 is a portion of the
funnel shape 26, the wall 18 also curves about the same axis of
curvature 32. A distance 25 (see Figure 3) from the wall 18 to
the axis of curvature 32 is the radius of curvature. It will
be appreciated that the radius of curvature decreases from the
wide end 28 to the narrow end 30 of the funnel shape.
Consequently, the radius of curvature decreases from the entry
end 15 to the exit end 17 of the sliding surface 12. The wall
18 therefore defines a reducing radius slide feature.
This reducing radius of the slide feature 10 helps to
maintain the rider on the water slide feature 10 in contact
with the water slide even when the rider travels above the
equator line 22.
In this embodiment, the rider is accelerated and
directed onto the sliding surface 12 through the downwardly
inclined slide portion to the entry 14 by gravity. The path
the riders will travel over the wall 18 will depend on a number
of factors such as their weight and their distribution of their
mass. In some embodiments the riders may travel in a ride
vehicle, for example, a raft for one to six people or more. In
other embodiments, the riders may body slide without a raft.
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In Figure 2, a first ride path 34 and a second ride
path 36 are marked. These ride paths 34 and 36 are exemplary
ride paths only. In both ride paths 34 and 36, the rider
enters the sliding surface 12 through the entry 14 at the entry
end 15. The rider then travels across the bottom 20 of the
wall 18 then up the wall 18 while simultaneously travelling
laterally across the wall 18. The rider then reaches a high
point and begins to travel down the wall 18 while still
traveling laterally across the wall 18 from the entry end 15
towards the exit end 17 and then out through the exit 16 at the
exit end 17. On the first ride path 34, the rider does not
travel above the equator 22 and on the second ride path 36 the
rider does travel above the equator 22 and thus travels above a
90 degree angle with the horizontal. In other words, the rider
travels through the vertical when travelling the second ride
path 36. The riders are continuously moving on the wall 18.
The riders do not stall or stop at the maximum height of travel
because the riders are always moving across the wall 18 on a
continuously curving path.
The ride paths 34 and 36 are not pre-selected. The
path the rider travels will depend on a variety of factors;
however, the ride path is predictable to the extent that the
reducing radius shape of the wall 18 ensures that the riders
will stay on the wall 18 irrespective of whether or not they
travel above the equator line 22. Also, both ride paths direct
the rider to the exit 16.
In this embodiment, the wall 18 has a partially
ellipsoid, side and top perimeter as best seen in Figure 2.
Around the side and top perimeter is a safety lip 38. The
safety lip 38 has a concave semi-circular cross-section with a
radius of curvature of, for example, 2 feet. The rider will
not normally ride on the safety lip 38. The safety lip 38 is
provided only for safety reasons and may be omitted.
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In this embodiment, the size of the water slide
feature 10 is based on a funnel shape which has a diameter at
the wide end 20 of 100 feet. In other words, a radius of
curvature of 10 to 50 feet and may be about 30 feet. The
funnel shape 26 tapers to a diameter of 4 to 20 feet at the
exit or, in other words, a radius of curvature of 2 to 10 feet
and may be about 6 feet. The radius of curvature of the
sliding surface at the entry end may be substantially larger
than the radius of curvature of the sliding surface of the exit
end. The ratio of the radius of curvature of the entry end to
the exit end may be between 8:1 and 3:1 or between 6:1 and 4:1
or about 5:1.
The predictability of the slide path means that a
narrower exit may be used then could be used on a non-reduced
radius wall. For example, in one embodiment, the width of the
wall 18 at the bottom 20 from the entry end 15 to the exit end
17 is approximately 40 feet and the entry 14 and the exit 16
are approximately 14 feet wide. This means that the entry 14
and the exit 16 are less than one half, and even less than one
third of the width of the wall 18. In such an embodiment, the
height of the wall from the bottom to the top may be
approximately 40 feet.
Figure 4 depicts a water slide 50 incorporating the
water slide feature 10 of Figures 1 to 3. The water slide 50
incoLporates an.entrance opening 48, an entry slide portion 52
and an exit slide portion 54. In this embodiment, the riders
travel on a raft 56. The raft 56 is an example of a six person
raft. The riders have been omitted for simplicity. Raft 56
enters the water slide from a platform at the entrance opening
48 and travels through the entry slide portion 52. The entry
portion 52 may include loops or be straight. In this
embodiment, the entry slide portion 52 is downwardly inclined
such that the raft 56 accelerates under gravity. The raft 56
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then enters the slide feature 10 through the entry 14. The
raft then travels up the wall 18 and then back down and exits
the water slide feature 10 through the exit 16. The rider then
travels along the exit slide portion 54 and exits the water
slide 50 into a pool 60. Although not depicted, it will be
understood that the water slide 50 is lubricated with water.
The water may be supplied from the top and/or sprayed or
otherwise added to the water slide 50, including the water
slide feature 10 at appropriate locations.
In this embodiment, the entry slide portion 52 has a
sufficient height and is angled to direct the rider/vehicles
onto the sliding surface with sufficient tangential and axial
velocity components for at least some of the riders/vehicles to
travel up the wall 18 at least partially above the equator line
22 and thus above an angle of 90 degrees to the horizontal.
Figure 5 shows another embodiment of the invention.
This embodiment will only be described to the extent that it
differs from the embodiment of Figures 1 to 4.
Figure 5 depicts a water slide feature 70. The water
slide feature 70 includes an entry 74 and an exit 76. The
entry 74 is adjacent in entry end 75 and the exit 76 is
adjacent an opposite exit end 75. A wall 78 extends between
the entry end 75 and the exit end 77. The wall 78 has a bottom
80, an equator line 82 and a top 84. As with the first
embodiment, the shape of the wall 78 follows the 'shape of a
portion of funnel shape. The present embodiment differs from
the first embodiment in that the portion of the funnel shape is
a larger portion such that the wall 78 extends higher and has a
substantially squared perimeter and the top 84 in linear. As
in the first embodiment, the bottom 80 is the lowest point of
the wall 78 and may be inclined downwardly from the entry 74 to
the exit 76. In this embodiment, the wall 78 extends upward
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further beyond the equator line 82 (the line at which the wall 78
is at a 90 degree angle to the horizontal) then in the first
embodiment. This permits the safety wall to be omitted from the
top of the water slide in this embodiment. Instead, in this
embodiment, inwardly curved safety walls 88 are found only along
the sides of the wall 78. Additionally, in this embodiment, the
riders are accelerated along a horizontal entry portion which
connects to the entry 74 and accelerates the rider up the
wall 18. This may, for example, constitute a linear induction
motor system.
Although the illustrated embodiments show a wall
defined by the shape of a funnel, for the portions of the wall
which the rider will not travel on, there may be holes cut or
other wall shapes that may deviate from the funnel shape. For
example, a wave shape could be added at the top 84.
In some embodiments, the lowermost surface of the wall
may not include the lowermost portion of the funnel shape. The
lowermost surface of the wall could begin part way up the side of
the funnel. In such embodiments, the equator line will still be
90 degrees to the horizontal but the angle between the lowermost
surface and the equator line may be less than 90 degrees. This
could be the case, for example, if a linear induction motor were
used to accelerate a raft up an entry onto the wall as described
in U.S. patent application no. 11/681,720, filed March 2, 2007,
entitled "Linear Motor Driven Waterslide Ride and Method".
In Figure 4, the exit slide portion 54 is a generally
downwardly sloping flume type slide portion. However, other
exits portions are possible. The exit from the water slide
feature 10 of Figures 1 to 4 or the exit from the water slide
feature 70 of Figure 5 could lead into a horizontal slide
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portion or an upwardly inclined slide portion that may be flume
type or may be open, such as a mirror image of the slide
feature 10 or 70. Figures 6 and 7 depict a curving angled
slide feature 90 which may be the exit slide portion from the
slide feature 10 or 70 or may form a portion of any water
slide.
Turning first to the side view depicted in Figure 6,
the curving angled slide feature 90 includes an entrance 92, an
upwardly angled section 94, a transition section 96, a
downwardly angled section 98 and an exit 100. The curving
angled slide feature 90 has a sliding surface 102. In this
embodiment, the upward incline of the upwardly angled section
94 is an approximately 7 percent rise and the decline of the
downwardly angled section 98 is approximately the same.
However, the angle of incline may differ and be, for example 4
to 12 percent or more or less with an incline and subsequent
decline of 3 to 12 feet over its length. Also the angle of
incline and the angle of decline need not be the same and need
not be constant over the entire length. For example, the
section 98 may be horizontal. The transition section 96 is the
section at which the upward angle changes to horizontal and
then goes to the declined angle.
Turning to Figure 7, a top view of the curving angled
slide feature 90 is shown. From this view it can be seen that
in addition to angling upward and downwards, the curving angled
slide feature 90 also curves laterally outward and inward in an
S-type curve. In particular, starting at the entrance 92, the
upwardly angled section 94 curves outward in one direction to a
maximum outward curve 104 and then curves back inward. The
curving angled slide feature 90 straightens out briefly in the
transition section 96. The downwardly angled section 98 then
curves outward to a maximum outward curve 104 in an opposite
direction to the curve in the upwardly angled section 94 and
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then back in to finish at the exit 100. The degree of
curvature may vary and may differ between the angled sections
94 and 96. The angled sections 94 and 96 may also be of
differing lengths and the entrance 92 and the exit 100 may be
at differing vertical heights.
The sliding surface 102 may be a flume type sliding
surface. Such a slide surface is concave with upwardly curving
side walls. In some embodiments, the cross section across the
sliding surface 102 may be elliptical, may be semicircular, may
have a compound radius made up of four curvatures or more, or
may be more squared as long as there is a bottom surface for a
rider to slide on and side walls to direct the rider along the
sliding path. The sliding surface 102 is lubricated with water
which may enter and exit through the entrance 92 and the exit
100 or may be otherwise sprayed or introduced to the sliding
surface 102.
The height of the side walls will depend on various
factors including the incline and decline angles and the speed
at which the rider enters the curving angled slide feature 90.
It will be appreciated, that with an elliptical or semicircular
cross-section, the rider may ride part of the way up the side
walls, particularly at the bend in the outward curves 104 and
106. The side walls may therefore be higher at these
locations. For example, the side wall may generally be 3 to 5
feet in height but may gradually increase .around on the outer
side of the curves to reach 9 feet at the maximum outward
curves 104 and 106.
Numerous modifications and variations of the present
invention are possible in light of the above teachings. It is
therefore to be understood that within the scope of the
appended claims, the invention may be practiced otherwise than
as specifically described herein.
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