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Патент USA US3079895

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March 5,: 1963
T. c. COOKE
WATER SKIING APPARATUS
Filed April 27, 1961
3,079,835
p
United States Patent
1
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Patented Mar. 5, 19?3
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ture of FIG. 1, with the control line in fully extended
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3,079,885
position asinFlGS. 1 and 2; and
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WATER SKHNG APPARATUS
Theodore (IkCooke, Swampscott, Mass.
Filed Apr. 27,1961, Ser. No. 196,114
8 Claims. (Ci. ‘IE-4.1)
._ FIG. 7 is a detail like that of FIG. 6 but'with the con
troluline in partially shortened condition as in FIG. 3.
;The power unit, preferably an outboard motor 13, is
lMy invention relates .to improved Watercraft remote
controls by means of which a water skier can safely and
practicably control his towing craft, both as to steering
and as to power changes.
.
Water skiing is a popularsport which has grownvat a
mounted on the transom of a small watercraft 1t), pref.
erably a catamaran, in the usual manner. vAccording to
the present invention, the motor 13 is preferably modi?ed
so that its power control means, including its “olf” switch
10 11, starter button 17 and throttle arm 15, is located on
top-of the unit generally on the horizontal axis of trans
phenomenal rate in recent years. Unfortunately, in .the
versely extending steeringlbars 12 provided on the motor
orthodox manner of water skiing, it has been necessary to
.13 and as near the vertical pivot axis 18 of the motor as
is possible. The ‘power controlmeans arm 15 is loaded
use a boat which can be operated safely only by using
two persons, one who must look forward to operate the 15 by a spring 14 ina direction towards it low power and stop
directionpthatris, toward its ‘,‘off” switch 11 so that the
boat and another who must look backwardto observe the
motor normally remains cit.‘ Ann 15 is moved in the op
skier being towed. As a result, there have been attempts
posite direction by a control line 19 which extends astern
to. devise remote control means whereby the operators of
of the-boat to a connection atthe center 21 of the trans
the boat may be eliminated, but these attempts, although
useful in theory, have been impractical, in that hereto 20 verse handle bar 22. The control line 19 is ?xedly at
tached at its outboard end generally centrally of the
fore lmown devices have been too complicated and ex
handle .bar- at 21 and at its inboard end to-the power con
pensive for theaverage water skier.
trolnrm 15 at its end 16. The bar 22, preferably, is
Ivly invention solves the problems noted above by pro
bouyant so as to be easily retrievable in the event it falls
vidingsimple remote control means for a towing water
.
craft to permit one-man water skiing.
25 into the .water.
The towing or steering lines 2t) are attached to the
Additionally, my invention has'for its. object to provide
steering bars 12 mounted on the motor 13. The steering
remote means for starting and shutting olf the power unit
lines .20 run astern to the handle bar 22 ‘and are attached
of the tow craft, as well as controlling its power to in
thereto in such a manner as to leave the handle bar ro
crease or decrease speed.
Another object of my invention is to provide a “dead 30 tatable withinthe attaching-devices 23. This may be ac~
man” control whereby the power unit will be shut o?
automatically in the event that the skier falls or other
wise drops the handle bar.
>
. Still another object of my invention is to provide con
rol means which are inexpensive and exceedingly simple
to use so that the average vwater skier can use it.
My invention consists'of apower unit, such as an out
board motor installed in a watercraft in a conventional
complished by using metal rings 23 formed about grooves
in, the handle bar 22,01" other suitable means- The
distance between the handle bar 22 and steering bars 12
is ?xed and so de?nes a ?xed distance between the motor
pivot 18 and the central pivot at. 21 of bar 22. The
distance between the handle bar 22 and the end 16 of
arm 15is variable,- as the control line 19 can be wound
up on the handle bar to shorten it and so move control
manner for pivotal movement about a vertical axis, and
power and steering control means therefor including a
transverse operator handle bar to be grasped by the water
skier. Brie?y, the control of the invention includes a
means 15 in opposition to the spring 14 away from “oli”
shortening the steering lines. Also, provided is a control
This makes it possible remotely to start the power unit by
rotating handle‘ bar‘ 22 to wind up control line 19 and
then pulling sharply on the bar to engage the starter
switch 11 toward its engine operating positions at starter
button 17 and beyond.
.
.
s
1
'Thus, the arm 15 in its closed position as shown in
FIGS. 1 and 2 contacts “0d” switch 11, ‘but as it moves
pair of steering lines connected to the watercraft steer
forward it ?rst turns on said switch, next contacts starter
ing means, which lines run astern where they are con
nected to the transverse handle bar in such a manner that 45 button 17 to start motor 13 and thenoperates as the usual
throttle control .to increase power to a maximum value.
the bar is rotatable without winding up or otherwise
line ?xedly attached generally centrally of the handlebar
and to the power control means of the power unit in
such a manner that rotation of the bar will wind up and
so shorten the control line to operate the power unit as
desired as to start and stop it and to change its power as
desired.
For the purpose of explaining further objects and
features of the invention, reference is now made to the
following detailed descripution of a preferred embodi
ment thereof together with the accompanying drawings,
button 17 with arm 15.
.,
.
.
.
.
It should be here noted that the reasonI place the
power control means 15 as near the pivot 18 as possible
is so that the change of distance of the power control
arm 15 relative to the handle bar 22 is minimized as. the
handle 'bar- 22.is moved to steer‘the watercraft 19. Like
Wise, the power control arm 15 is placed on the horizontal
axis of the steering bars 22 to minimize the change of
distance of the power control arm 15 relative to the handle
wherein:
bar 22 which would otherwise be encountered as the
FIG. 1 is a side view of the structure of the invention;
FIG. 2 is a plan view of the structure of FIG. 1 in 60 handle bar is raised or lowered.
straight ahead steering position with the control line in
fully extended position;
In practice, the water skier, having placed the water
craft in the water and having put on his water skis, stands
in a position in which the tow lines 2%} are fully extended
FIG. 3 is a top view of the structure of FIG. 1 in a
and taut. Then the handle bar 22 is rotated either
turned steering condition with the control line in partially
65 clockwise or counter-clockwise, as preferred, about its
shortened condition;
horizontal axis thereby winding the control line 19 onto
FIG. 4 is a partial rear view of the structure of FIG. 1;
the handle bar. This procedure is continued until the
FIG. 5 is a cross-sectional detail of the connection of
power control arm 15 permits the “off” switch 11 to be
the steering lines to the transverse handle bar of the
turned “on” and meets the button 17 of the automatic
structure of FIG. 1;
70 starting means. Once the motor 13 is started, the con
FIG. 6 is a cross-sectional detail of the connection of
trol line 19 is further wound upon the handle bar 22
the control line to the transverse handle bar of the struc~
until the power control means 15 is advanced su?iciently ‘
.1
3,079,835
3
to cause the power unit 13 to propel the watercraft 10
and the skier forward. If greater speed is desired, the
power control arm 15 is further advanced by continuing "
the rotation of handle bar 22 until the speed considered
desirable is attained. By rotating the handle bar 22 in
' the‘ opposite direction, the spring 14, which urges the
power control arm 15 to an “off” position, is‘permitted
partially or compietely to shut oi the power, thus re
dncing or stopping all forward propulsion. In any event,
said movable element has an intermediate starting posi
tion between its most and least extended positions.
4. Water skiing apparatus for use with a motor pro
pelled watercraft having motor control means and steer
ing means, including: a transverse operator bar adapted
to be held by a water skier; a pair of transversely spaced
extended steering lines rotatably mounted at their out
board ends on said bar in spaced positions adjacent the
ends of said bar and at their inboard ends connected
should the skier fall or for any reason release his grip 10 to said steering ,means for operating said steering means
on the handle bar, the spring 14 will urge the power
control arm‘ 15 to an “016” position and thus completely
shut down the power unit. The starting procedure can
then be repeated.
-
in opposite senses by moving one end of said bar a pre
determined distance outboard while moving the other
end of said bar said predetermined distance inboard to
maintain the pivot point of said bar midway between said
To steer the watercraft, thehandle bar '22 is rotated 15 lines at a predetermined ?xed distance from said'wateri ’
about a vertical axis at its central point 21, thus exert
craft; and a control line mounted at its outboard end to
ing a force in the same direction on the steering bars
the pivot point of said bar and at its inboard end to pow
12 through the steering lines 29 which rotates the power
er control means, said control line being ?xedly at
unit 13 or other rotatable steering device about its pivot
tached to said transverse bar to be wound around said
1.8. In this manner, the power unit, is moved to con 20 bar upon rotation of said bar while said steering lines
.trol the direction of the watercraft 10 Without a?ecting
rotate freely on said line to maintain the pivot point of
the setting of power control arm 15.
'
said bar at ‘said ?xed distance while shortening said mo
Thus, my‘ invention offers a simpler, safer and more
tor control line by rotation of said bar to move the in
reliable way to control the power unit than the prior art.
board end of said control line relatively to said ?xed
Remote means are provided to start, stop and control 25 distance to operate said power control means.
the power of the power unit. “Dead-man” control is
5. Water skiing apparatus as claimed in claim 4 where
provided.
My invention is inexpensive and compact.
in said power control meansincludes a movable ele
ment connected to said motor control line, said element
that various modi?cations, within the spirit of the in
in the most extended position of said control line oper
vention and the scope of the appended claims, will occur 30 ating to stop the motor of said watercraft and in suc
to those skilled in the art.
cessively less extended throttling position successively
I claim:
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to increase the power of said motor.
Moreover, its use is easy to teach. It is further apparent
1. Water skiing apparatus having control means,
adapted to regulate the pivotally mounted outboard
- 6. Water skiing apparatus as claimed in claim 5 where
in said movable element has an intermediate motor start
marine engine power unit of a power driven watercraft 35 ing position between the stop position and the throttling
inclding: a transverse handle bar, adapted to be held
position.
[by a water skier, of ?xed distance relative to said power
' 7. vWater skiing apparatus as claimed in claim 4 where
unit; power control means, having a movable element
in said movable element is mounted at the pivot point
which in its most extended position operates to stop the
vof said steering means and on the horizontal axis of said
power unit, and in successively less extended positions
operates successively to increase the power of said pow
er unit, said power control means being mounted at
the pivot point of said pivotally mounted power unit
steering bars.
'
8. Water skiing apparatus as claimed in claim 4 where
in the motor of said watercraft is an outboard motor
pivotally mounted for rotation about a vertical axis for
and on the horizontal axis of steering bars which are
steering control of said watercraft, said motor including
?xedly attached to said pivotally mounted power'unit; 45 a transverse steering bar, and a motor control having
a spring, ?xediyattached at its inboard end to the power
unit and at its outboard end to the power control means,
said spring urging said power control means to its most
spring means urging said control to a stop position
away from a motor throttling position, said steering lines
being attached to opposite ends of said motor bar to
extended position; a control line ?xedly attached at its
de?ne said ?xed distance between said motor pivot point
outboard end to the pivot point of said handle bar, so 50 and the pivot point of said transverse operator bar, and
that it may be wound thereon, and ?xedly attached at its
said motor control line being attached to said motor con
. inboard end to said power control means.
trol in opposition to said spring means to move said
2. Water skiing apparatus as claimed in claim 1 with
motor control away from its stop position to its throttling
steering means, including: a pair of transversely spaced
position upon rotation of said operatorbar to wind up
55
steering lines rotatably attached at their outboard ends
said motor control line thereon.
to said handle bar and ?xedly attached at their inboard
ends to said steering bars; steering bars ?xedly attached
References Cited in the ?le of this patent - V v
to said steering lines and to said pivotally mounted
UNITED STATES PATENTS
power unit; said steering lines also de?ning the ?xed
distance between said handle bar and said power unit. 60 2,451,781
Steele ______________ _._ Oct. .19, 1948
3. Water skiing apparatus as claimed in claim 1 wherein
2,972,326
Simpson ____________ __ Feb. 21, 1961
‘wa.s
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