close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3082453

код для вставки
March 26, 1963
1'. KIMURA
AQUA-SLED
Filed June 6, 1960
3,082,443
United States Patent O ” ice
2
I
3,082,443
AQUA-SLE!)
Tal; Kimura, ’Tiifá W. 56th St., Los Angeles 37, Calif.
Fiied .lune 6, 196i), Ser. No. 34,302
4 Ciaims. (Cl. 9-31ê)
This invention relates to aquaplanes and, more particu
larly, to an aqua-sled which can be towed along the sur
face of a body of water.
An aquaplane is a platform attached -by ropes astern
of a powerboat, on which a person may ride as it is towed
3,082,443
Patented Mar. 26, 1963
Further advantages and features of this invention will
become apparent upon consideration of the following de
scription when read in conjunction with the drawing
wherein:
FIGURE 1 is a top view of the aqua-sled of this inven
tion;
FIGURE 2 is a side view of the aqua-sled of this inven
tion;
FIGURE 3 is a rear view of the aqua-sled of this inven
tion taken along lines 3_3 of FIGURE 2;
FIGURE 4 is a partial sectional view of the aqua-sled
of this invention taken along lines 4-4- in FIGURE l;
rapidly over the water. As with a hydroplane, the dy
namic reaction of the water supports the aquaplane and
its passenger when the aquaplane is in high speed motion.
The popularity of aquaplanes and of water skies has been
rapidly increasing throughout the world even though con
and
FIGURE 5 i-s a pictorial view of the aqua~sled of this
invention illustrating the positions of two persons on the
siderable skill is required for utilizing such apparatus.
Referring to FIGURES 1 through 5, the aqua-sled 10
aqua-sled.
Many persons cannot participate in such water sports
because of the demanding skills required. The ditiicul
is a towed vehicle and includes a centrally located body
section '38 and two wings 15 and 16 which are contiguous
ties Iarise because aquaplanes and water skies are not suf 20 with the ‘body section 3S and extend from opposite sides
ñciently buoyant at slow speeds or at standstill to support
of the body section y38. The wings 15 fand 16 taper
a person on them in position for utilizing the apparatus.
forwardly, as illustrated in FIGURE l, toward the body
Moreover, at high speeds when the dynamic reaction of
sec-tion 3S. The nose of the body `section 38 is somewhat
the water provides for suflicient buoyancy, the stability
V-shaped so that the aqua-.sled 1t) forms an overall rough
of such apparatus is exceedingly poor causing even Skilled 25 V-shape in horizontal cross-section at its front. Except
persons to often fall into the water. Though >these dif
for the tapered portions of the wings 15 and 16 and the
iiculties increase the challenge for some persons, they
V-shaped nose of the body section 38, the sides of the
body section 3S and the edges of the wings are subst-an
prevent many others from even attempting such water
tially parallel.
sports. People who are not athletic, who are elderly or
The aqua-sled 10 may be made of an upper and a lower
very young, or Who are poor swimmers all do not par 30
ticipate in such water sports.
In a specific illustrative embodiment of this invention,
a buoyant and highly stable aqua-sled is provided. The
aqua-sled is highly buoyant so that it can readily sup
shell or section which are joined at a seam 25.
The two
shells may be made of reinforced plastic. The shells are
quite sturdy land retain their shape when subjected to
from the water surface when the aqua-sled is being towed.
considerable :dynamic pressures as »the aqua-sled 10 is
towed at a high rate along the water surface.
The upper and lower sections forming the aqua-sled
10 are joined along the edges of the wings 15 and 16 at
the seam 25. As illustrated particularly in FIGURE 4,
In the specific illustrative embodiment, the aqua-sled
the seam 2S is made of a metallic member 21 bent in
port a few hundred pounds even when it is not being
towed. The dynamic reaction of water tends to increase
the buoyancy eñect to raise the nose of the aqua-sled
has two seats deiined by a body section. The body is 40 an S shape to engage the ends of the upper and lower
sections. A cherry rivet 1‘9 is pulled through the mem
quite narrow and is contiguous with a pair of wings that
serve `both as foot rests and as stabilizers to prevent roll
ber 21 and the ends of the two sections. Adhesive is
or rotation of the aqua-sled about its longitudinal axis.
applied to the ends of the upper and lower sections so
' that the seam 25 hermetically seals the two sections.
Two persons may be seated in the respective seats with
The seam 25 runs around the entire aqua-sled 10 to seal
their feet about the `sides of the narrow body section and
supported on the stabilizing wings. The wings are slanted
ofr” the air space between the two sections. The space
between the two sections may be ñlled with a plastic foam
upwardly toward the front of the sled so as to develop
or other buoyant material. In the event of a leak, the
the dynamic water reaction, and also so as to block the
aqua-sled 1i)l then still retains :substantial buoyancy. Due
rushing water from passing lbetween the feet of the pas
sengers and the wing. A V-shaped tow lie is coupled
to either side of the body section near the lleading edges
to the sealed off interior, the aqua-sled 10 is quite buoyant
and even though relatively small, illustratively eight feet
long and a width of 34 inches across wing tips, it readily
supports weigh-ts exceeding a few hundred pounds.
single tow lie may be used. Longitudinally along the
The bottom of the aqua-sled toward the stern may be
bottom of the aqua-sled a number of keels, integral with
the body section and wings, are provided to stabilize the 55 substantially ñat as depicted particularly in FIGURE 3.
aqua-sled against skidding or transverse sliding move
The bottom of the aqua-sled toward the bow tapers up
ments.
wardly. Three keels 26 run longitudinally along the bot
tom of the aqua-sled 10 and are integral with the bottom
The body section and winffs may be made of two pieces
of the wings to reduce any tendencies to roll although a
of Fiberglas reinforced plastic joined around the wings
section of the aqua-sled 10 although more or fewer keels
person in the seat.
body section 38 stabilize the aqua-sled against rolling or
rotation about the longitudinal axis of the aqua-sled 10.
edges and front and back of the body section to provide 60 may be provided. The keels 2.6 `stabilize the aqua-sled
for a hollow structure. Handles are provided on the
against lskidding or sidewise movements. The wings 15
body section in front of each seat for self stabilizing the
a-nd 16 extending from the opposite sides of the narrow
Due to the buoyancy and stabilization features, the
aqua-sled is quite safe and does not require any skill or
coordination from its passengers. They need only hold
onto the handle in front of the seat and keep their feet
on the stabilizing wings. The thrills and excitements
associated with aquaplaning and water skiing are, accord 70
ingly, safely achieved yso that even non-swimmers can
readily utilize the aqua~sled.
The forward [portions of the'wings 15 =and 16 are tilted
upwardly at a small angle to form a slanted surface for
meeting the waves as the aqua-sled 10 is towed. The
bend in the wings 15 is depicted particularly in FIGURE
2. The wing configuration provides for maximum plan
ing ability -with full utilization of the dynamic reaction
of the water against the wings 15 and 16. Fur-ther, the
8,082,443
4
Water is prevented from rushing against the feet of the
the body for most of the length of the wing, a portion of
riders on the wings 15 and i6.
each said wing bottom surface near said nose portion
The body section 38 along the center of the aqua-sled
being inclined upwardly from the body bottom surface,
10 defines two contoured or bucket seats 12 and 13
each said wing having a portion near said nose portion
spaced longitudinally along the section 33. The seats 12
tapering inwardly and forwardly toward said nose por
and 13 are quite narrow Vso that the feet of the aqua
tion from the lateral extremity of that wing; means on
sled rider extend forward at the sides of the section 38.
said body for attaching a tow rope; and said body having
The position of the seated riders relative to the body sec
means for accommodating at least one occupant.
tion 38`and the wings 15 and 16 is illustrated in FIG
3. An aqua-sled for towing comprising an elongated
URE 5. The upper surfaces of the Wings 15 and 16 may 10 body and a pair of wings; said 4body having a nose portion
serve as foot rests for the persons on the `sled 1d having
integral contoured foot rests 32 and 33 for seat 13 and
foot rests 34 and 35 for the seat 12. These foot rests
may be provided as integral parts of the upper section of
the two section-s forming the aqua-sled 10.
on one end, a stern portion at the other end, and a pair
of longitudinal side portions; said nose portion having a
bottom surface tapering upwardly and side surfaces taper
ing together at that end of said body; said body having a
15 bottom surface extending from the said nose portion bot
The persons on the aqua-sled It) maintain their stability
tom surface to the said stern portion, at least one keel
by resting or bracing their feet on the foot rests 32 through
projecting downwardly from said bottom surfaces and
35 o'n the wings 15 and 16 Vand by holding hand bars 28
extending substantially the length of said bottom surfaces;
and 29 respectively positioned adjacent the two seats 12
each of said wings projecting laterally from one of said
yand 13. The hand bar 28 is positioned on the body sec 20 longitudinal side portions of the body, each said wing ex
tion 38 in front of the seat 12 and the hand bar 29 is
tending longitudinally from the stern toa loca-tion on said
positioned on the body section 38 in front of the seat 13.
body near the juncture of said nose portion with said
'I'he aqua-sled 10 is towed by a U-line 40 attached to the
body, each said wing having a bottom surface joined with
body section 38 near the front edges of the wings 15 and
and comprising a lateral extension of the said bottom
16 adjacent their juncture with the body section 38.V The 25 surface of the body for most of the length of the wing, a
utilization of U-line 40 provides for two spaced apart tow
portion of each said wing bottom surface near said nose
points to increase the stability of the aqua-sled against
portion being inclined upwardly from the body bottom
rolling although a single tow rope attached at a single
point may be used. The tendency to roll is increased if a
single central tow point is used.
v
surface; means on said body for attaching a tow rope;
and said body having means for accommodating at least
30 one occupant.
In this manner, a highly stable and safe aqua-sled is
provided made of reinforced plastic sections sealed to
provide high buoyancy. The aqua-sled 10 »has relatively
few protrusions and no sharp protrusion which can be
4. An aqua-sled for towing comprising an elongated
body and a pair of wings; said body having a nose por
tion on one end, a stern portion at the other end, and a
pair of longitudinal side portions; said nose portion hav
highly dangerous in the event of rolling.
35 ing a bottom surface tapering upwardly and side surfaces
Although this invention has been disclosed and illus
tapering together at that end of said body; said body hav
trated with reference to particular applications, the prin
ing a bottom surface extending from the said nose portion
ciples involved are susceptible of numerous other appli
bottom surface to the said stern portion, at least one keel
cations which will be apparent to persons skilled in the
projecting downwardly from said bottom surfaces and
40
art. The invention is, therefore, to be limited only as
extending substantially the length of said bottom surfaces;
indicated by the scope of the appended claims.
each of said wings projecting laterally from one of said
I claim:
v
longitudinal side portions of the body, each said wing ex
1. An aqua-sled for towing comprising an elongated
tending longitudinally from the Stern to a location on
body and a pair of wings; said body having a nose portion
said body near the juncture of said nose portion with said
on one end, a stern portion at the other end, and a pair 45 body, each said wing having a bottom surface joined with
of longitudinal side portions; said nose portion having a
and comprising a lateral extension of the said bottom
bottom surface tapering upwardly and side surfaces taper
surface of the body for -most of the length of the wing,
ing together at that end of said body; said body having a
a portion of each said wing bottom` surface near said nose
Ibottom surface extending from the said nose portion bot
portion being inclined upwardly from the body bottom
tom surface to the said stern portion; each of said wings 50 surface, a keel projecting downwardly from said bottom
projecting laterally from one of said longitudinal side
surface of each wing and extending at least a portion of
portions of the body, each said wing extending longitudi
the length of said wing; means on said body for attaching
nally from the stern to a 2location on said body near the
a tow rope; land said body having means for accommo
juncture of said nose portion with said body, each said
dating at least one occupant.
wing having a bottom surface joined with and comprising 55
a lateral extension of the said bottom surface of the body
for most of the length of the wing, a portion of each said
wing bottom surface near said nose portion being inclined
upwardly from the body bottom surface; means on said
body for attaching a tow rope; and said body having 60
References Cited in the ñle of this patent
UNITED STATES PATENTS
1,023,601
1,222,114
1,356,013
1,758,289
1,953,359
Simpson _____________ __ Apr. 16,
McCarty et al. ________ __ Apr. 10,
Ranlett ______________ __ Oct. 19,
Loy ________________ __ Mar. 13,
Marsh _______________ __ Apr. 3,
2,286,350
2,389,001
2,389,729
Drake _______________ __ June 16,
Schatz ______________ __ Nov. 13,
Hou-land ____________ __ Nov. 27,
2,482,074
2,616,715
Stephens _____________ __ Sept. 13,
Billings ______________ __ Nov. 4,
portions of the body, each said wing extending longitu
2,685,696
2,716,246
2,802,222
Oscanyan ____________ __ Aug. 10, 1954
Billingham ___________ __ Aug. 3G, 1955
Chapman ____________ __ Aug. 13, 1957
dinally from the stern to a location on said body near
2,817,101
Chaffee _____________ __ Dec. 24, 1957
the juncture of said nose portion with said body, each
said wing having a bottom surface joined with and com
prising a lateral extension of the said bottom Surface of 75
2,865,032
Moody ______________ __ Dec. 23, 1958
2,909,140
2,958,875
Kiekhaefer ___________ __ Oct. 20, 1959
McClain _____________ __ Nov. 8, 1960
means for accommodating at least one occupant.
2. An aqua-sled for towing comprising an elongated
body and a pair of wings; said body having a nose portion
on one end,'a stern portion at the other end, and a pair
of longitudinal side portions; said nose portion having a 65
bottom surface tapering upwardly and side surfaces taper
ing together at that end of said body; said body having a
bottom surface extending from the said nose portion bot
tom surface to the said stern portion; each of said wings
projecting laterally from one of said longitudinal side 70
1912
1917
192()
1930
1934
1942
1945
1945
1949
1952
Документ
Категория
Без категории
Просмотров
0
Размер файла
429 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа