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Патент USA US3079627

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March 5, 1963
B. F. BRASCH
3,079,617
SLED OR BOAT
Filed March 30, 1960
3 Sheets-Sheet 1
/SI
BI
25
INVENTOR.
BENJAMIN FT BRASCH
BY
AT T0 RN EY
March 5, 1963
3,079,617
B. F. BRASCH
SLEDv 0R BOAT
Filed March 30, 1960
3 Sheets-Sheet 2
INVENTOR.
BENJAMIN F. BRASCH
BY
ATTORNEY
March 5, 1963
a. F. BRASCH
3,079,617
SLED 0R BOAT
Filed March 30, 1960
’
3 Sheets-Sheet 3
||| Hill" \\ \\ \ \\\
INVENTOR.
BENJAMIN F. BRASCH
ByfkM AT T0 RN EX
ice
'7 aired grates Fat
d?lihbl?
Patented Mar. 5, 1953
1
2
3,ll79,617
Benjamin F. Brasch, Purina, Ohio, assignor to Blazon,
ease of attachment of the pan as to a platform 12, and
flange 11 may be interrupted at 13 to provide an addi
tional ?ange to receive va hollow cantilever beam 14 to
support the platform. The central runner 10 may be
SLED 6R BOAT
Inca, Akron, Ghio, a corporation of @hio
Filed Mar. 30, 1960, Ser. No. 18,679
9 Claims. (Ci. 9-310)
atiixed to the platform 12 as by bolts (not shown).
The platform 12, which could be one molded piece but
which is shown in FIGS. l-4 as an assembly of two
slightly angled sheets conveniently of ply-wood, has the
The present invention relates to a passenger carrying
vehicle which is slideably movable over water, snow,
10
or ice.
overall pattern of a delta Wing and at either side of a
normally vertical plane or center line 15 drag devices
Heretofore, sleds or toboggans of the type having a
main central ski and parallel outboard skis or runners
such as oppositely angled skis 16 are affixed beneath
the platform at outboard corners thereof.
have been known. See, for example, US. Patent
386,414-Pusey. One disadvantage of such arrangement
At the front of the vehicle, a rigidly mounted handle
17 may be provided just forward of a mast hole 18 with
has been that it necessitates an excessive sidewise tilt of 15 said hole located above a mast step plate 19 for receiv
ing a mast for sailing when that is desired. ~
7
vehicle to obtain a relatively small amount of turn, or
For maximum maneuverability, while at the same-time
preventing skidding, the pan or shell forming the cen
tral runner 10 is bottom edge rounded as at 21, 22, ad
simple and inexpensive means ‘for overcoming the above 20 jacent the front or how of the vehicle (see FIG. 3)‘ and
mentioned difficulties.
may also have a small center runner 23 (which may be
just a protrusion of the pan as stamped), while toward
Another object of the invention is to provide a novel
sled or tcbog?an readily maneuvered by mere lateral
the rear and adjacent the outrigger skis 16, these curves
sometimes tilting merely puts the sled on two runners
with no turning action at all.
It is an object of the present invention to provide "
shifting of the load carried thereby.
Another object of the invention is to provide a readily
have individually coalesced into sharp points 24, 25, lo
controllable While safe and practical central runner sled
of the pan 10 (see FIG. 4).
cated on either side of an upwardly .arcuate bottom 26
having a minimum number of parts (and no moving ~
> -
‘
During the operation with the combined main cen
tral runner rounded edges fore and small central runner
parts) and consequent low cost of manufacture.
Anot..er object of the invention is to provide a sturdy
sharp edges fore (as seen in FIG. 3) and the main cen
vehicle of one piece construction, suitable for use by one 30 tral runner sharp edges aft (FIG. 4), sharp’edges front
and back prevent skids on ice but Without restricting turns
or two persons in either an upright sitting position or because any sharp edge of the small central forward por
lying face downward.
Broadly, in accordance with one aspect of the present
tion of the central ski will'be removed from the sliding
medium during turns, the central sharp edge becoming
invention, I meet these and other objects by providing a
sled having a main central ski and two oppositely ar- '
ineffective as the vehicle is rolled over on rounded edge
ranged outboard drag devices of less effective depth. In
accordance with a preferred embodiment, the drag de
21 or 22.
vices are skis each afiixed at an angle so that a plane '
slamming) may be provided in the platform at 31, 32
and when the occupant is sitting down facing the front,
-
~
- If desired, hand holes (as for holding ‘ for belly
through the longitudinal center line of each outboard ski,
if extended, will intersect a plane through the vehicle
longitudinal center line, and thus through the central ski.
This provides an entirely different turning principle
he may use additional hand holes 33, 34 and, where pos
sible, a hand hole such‘ as 33 is protected from the snow,
ice, ‘water, etc. by structural parts such as 14, 16.
In a modi?cation as shown in FIG. 5, the platform
than those heretofore known because the ‘outboard device,
which is activated by platform tilting, provides a_ substan
assembly 12 is provided with oppositely located drag de
tial force when it engages a sliding medium thereby creat
vices one of which is shown at 36. With this embodi
ment, each drag device takes the form of a simple
bracket fastened to the bottom of the platform 12 assem
bly with the engaging surface of said bracket fashioned
,to provide a substantial drag force such as by corruga
tions 37 preferably with the corrugations at an angle
with respect to a line running fore and aft of the vehicle,
and preferably, also, with the bottom ends of the brackets
ing a substantial turning moment without necessitating ,
excessive tilt of the vehicle. Thus a simpler, more con
trollable ski sled is provided.
>
Other objects and advantages will become apparent
and the invention may be better understood from con
sideration of the following description taken in connec
tion with the accompanying drawing, in which:
FIG. 1 is a top view of a device constructed in accord- '
ance with the invention;
PEG. 2 is a side elevation of the device shown in 7
PEG. 1;
FIG. 3 is a cross-sectional View on the line 3—-3 of
FIG. 2;
FIG. 4 is a cross-sectional view on the line 4»—4 of
FIG. 2;
FIG. 5 is an upwardly viewed corner portion illustrat- '
ing a modi?cation;
FIG. 6 is a diagrammatic top or bottom view includ
ing a force diagram illustrating operation of a device as
in FiGl or 7;
PEG. 7 is a perspective view of an alternate con
(that is, the bottoms of the corrugations if any) angled
downward with respect to the platform portion, for ex
ample so that a plane in which they fall will intersect a
plane containing the bottom of the central runner, so as
to provide maximum area of drag device contact with
sliding medium during turning as is the case for the
arrangement of FIGS. l-4 and 7, also, and with such an
arrangement it is not necessary to “angle” the bracket it
60 self with respect to a line running fore and aft.
If the vehicle is to be used on water, the end of mem
bers 10 and 14 (see FIGS. 14) may be enclosed and
seams‘to be relied upon for buoyancy made Water tight
so that the vehicle will float when the vehicle is sta
65 tionary, or when it is being brought up to planing speed
as by initial towing with a motor boat. However, if the
vehicle is to be used only on’ snow and ice, this is not
FIG. 8 is an exploded view of a ski useful, for example,
essential and an end such as the end 38 of member '14 in
as shown at 16 in FIGS. 1, 2 and 4.
In FIGS. 1,-4, I have shown a pan-like central runner ' FIG. 2 may be left open to reduce weight. '
19 which may be made of aluminum or other material. 70
FIG. 6-includes a force diagram from which it is seen
struction;
If desired, the pan top may be ?anged at 11 to provide ‘j
that with forward motion in the direction of arrow 61,
,
7
..
,7
.,
s,079,e17
4
' 3
as soon as the sled, for example of FIGS. 1-4, is laterally
tilted to engage one drag device 16, a drag force repre
" q sented by, the», arrow 62 resolves-into a perpendicular
'; ; component 63 and a drag ski angle component represented
shy-the arrow 64 both of which will cause turning with
" serve to 'keep'water, snow ‘or iceout' 'ofthe “inside” of
respect to an ,assumedcenter of gravity (of sled- plus load)
~ bodiments, various modi?cations may obviously be made
atap_oint;65.~
v
~-
I
-;
_
>
the sub-combination. Water is not so likely to enter from
above (through hand holes 33, 34 in FIG. 1) because the
platform 10 usually'planes above the water.
While I have illustrated ‘and. described particular em
without departing from, the truejrspirit and scope of the
_
invention which is intended'to be de?nedby the appended
thelarrangement of FIG. 7 the entire sled is formed
~
claims taken with all reasonable equivalents.
-' , as; one drawn, stamped or molded: piece asofmetal or
plastic,_-with indentations andconvolutions of thispiece
10,
‘ gformingaif‘pan” type central runner 70 convex '(viewed , a > 1. Avehicle having a ‘platform portion, a depending
.Lclairnzl,
_
_
V
.
central’ runner secured to said platform portion and having
~ _‘ J; from the bottom) infront and-concave (‘from the bottom)
at least one bottom.,surface, andfa vpair ofvldraig devices
,a?ixed to the'platform and" oppositely disposed one on
back-,2, platform 72;~transverse.r_stiiiening (cantilever)
corrugations p74,» and angled [outboard runners 76 which
vare , again assumed: raised-{as is bottom Surfaces) wlth
yrespectto central runner;v(bottomgsurfaces); ,
.~,
eitherside of, said central runner, ‘said dragdevices each
having a bottom surfacelyingin a plane whichiis elevated
15 '
-~;;With a one piece arrangementv as in .516. '_I_, it is not : i relative to the bottom surface of the central runner, and
necessary to‘;separatelylattach ‘drag’ devices‘jto platform, , I said dragidevices each configured and’ arranged; at an
‘» -.' f-lbutwhere separate elementsare-used, as in FIGS. 1 and 2, .v ' angle with respect to a fore and aftli'ne through the central
i
they can easily be attached- by heatfusion, or bolts, rivets
runner 'to provide, during vehicle. travel ._in thelongitu
20
and the like, particularly if thetski's and otherunderparts ;e dinal direction of the central runnerdandlateral tilting to
are provided‘lwithptop ?anges asrindicated by the double , engage, withthe supporting medium one or the other of
' the drag devices,'rnore resistance to ‘sliding: than the re
_ “appears that ski 16 tapers, downwardly forwardly; but ~ . sistance provided by said central runner; ',
v . -
-2.lA,vehicle ,as in claim 1 further’ characterized by
actually;- it'isithe, downward taper. inwardly,_’toward the :
' longitudinal center-ro‘flthevehicle, rather than'forwardly "the drag devices being brackets ‘having endsJwhieh are
~ which is; important becauseiit is desired'thatv the. ski (or ->;,angled- downward with respect to the platform portion and
vhavingbottoms whichrare corrugated at an’ang'lewith
other drag'devic‘e) contactlthe.sliding'mediumihrough- '
1 respect‘ to a line extending fore and aft'of the vvehicle.
~ .~_; out thejwholeeifective'bottom‘area 'ofuthe dragj device .
hen'the'vehiele is ‘tilted, in ‘the,’ direction'ofisuch-device.
.
v
,.
.
a
_
so
‘
manufacturing costs, to provide buoyancy when the device
‘bent updrag devicesinight :be used .at the rearaof the ,
is. used in watergand' to provide ashlongrstructnrel with
zi',wvivehicle,v;the:iriainidea being that the drag device will
lcontact the- slidingmedium with an appreciable surface
Ivy/hen the vehicle is-tilted-inits direction” ,
3. A vehiclefas in ‘clai'rnl further characteriiéd‘by the
. ,central runner ‘being formed as a, panwhereby'toreduce
vNtuner'ous medi?cationsarepossibleand'insteadgof SklS,
"a minimum amount'of' material.‘v , , _ .
35 "
4.7a vehicle as in claim 1 further'characterizeidéby the
(With any of the arrangementsit-is,a>characteristic of ._ , platform portion comprising a pair of plywood wings each
;-;,;the_ present invention thati during vehicle ljtravel in the " ?aring upward from a longitudinal axis through the cen
direction of the central runner and subsequently lateral
tilting to engage one or 'thelotherrof. the drag devices, the
; drag device;williprovide,‘more-resistance to-slidingjthan
tral runner.
I
-
'
I
i_
V
.2
l
e
l
l 5-. A sled .or, ski runner havinga front a‘iida back‘a'nd a
40] surface, which adjacent thefront is. convert when viewed
l'from'the bottom to provide QIiibQQId rounded e'dgfe's'iu the
_ "the resistance provided by, the central runner,‘- thus causing ,
foregportion, with this con?gurationfchanging‘ ,‘aft ‘into a
- ‘ turns while preventing spilling. I This-effect canybe greatly
afaided bribe-shape of: thevcéntrallpan from-which the L concave. surface as ‘viewed from the bottdni vtepr'ovide
céntral.~iwlinerédepsndle
ithelvehicle is tilted;- ihis " ’ sharp outboard edgesadjacent therr'ear, Dime device, the
_ , ‘,centr'al'parif can actfasjaicam, elevating :thecentral‘runner
.
a
,
_
45~
front portion also having’ a's'mallcentral runner‘having
from-the sliding medium and eliminating the possibility of l “sharp edges,lwhereby the sharpedges ‘front and back may
, turn resistance from central runnerr Irr effect, then, the “
' front of thepan skids around ‘on the front curved por
.preventlrside. skids except, when vthe runner Iisflaterally
3i tilted to‘ remove the small, central runner from engagement
l, ,tion (of bilge rather than keel) when a side mounted _' ., with a sliding medium and instead engage ‘said sliding
V ,drag,deviceengageswthe medium on- which theyehicle is
,7
_
v.
traveling.
__
~
_,
v‘
'
-
I,
.
,7
'
50 medium with a rounded edge, adjacent the vfront for
l
_.turning.
H6. A_Vvehiclefor ‘use on a. slidingpmedium, said vea
Andanoutstanding characteristic shown ingthe drawings , . l
hi'clehaving a, triangular outline in planjviewf'andbolm
prisinga platform portion forzrecelivinlg' a loadlduring
_ ' isthat the drag devices may have bottom sliding medium
contacting surfaces lyingin planes which are angled so
that, if extended, they will intersect a plane de?ned by
55
' the bottom surface of the central runner;
‘I , Of course, any turned up front end ski or skate might a:
b'e'expected to provide some turning force (if its mate is
not active) but a ski which is angled‘ in accordance with
- the disclosure in FIGS. 1:4 and 7 or a simple bracket as
turning and 2. depending centralportionfformed Kas'a pan
open at the top, the platform extending ‘from each side
:of but notiover thecentral pan so that the pan
a de
pression to accommodate a rider while'the' platform ex
tending to either side provides wings to which-lithe rider
may shift weight for making turns, the platform wing por
60
,-shown in-EIG. 5,, will provide ‘a'great dealrmore turning » . | tions, having drag, deviceslocated on’ opposite ‘sides of
, wvforceand thus a more rapid and-more controllable turn ‘‘ the pan and depending ‘from the platform wings, said
and, at'least withitheconstruction of FIGS. 1-4, the sled , T. .drag devices having bottom surfaces which er'cept during
vismuch saferhthan center plus outboard runner sleds ' such weight shifting and turning. are elevated with re
.-
' heretofore known ?rst because there will. be little tend
,
V
i
t
.
'65
- -ency forjany outrigger skitodig in and ?iptheyehicle, <
i
spect to the bottom surface of th'e'pan'.
t ;. 7 ., A vehicle as in claim 5 further vcharacterize'd'.iby the
and secondly because it. is not necessary to laterally tilt " central pan itself having a depending’ centbalrunner-hav
y if the'vehic'le so 'far'flor ‘a predetermined turn ‘and, this , vJing abottom surface and the (planes in 'whiehthe bottom
surfaces of the drag devices fall'being angled .to the plane
1 minimizes the chance of upset; a.
~_ »; -_ l
_, ,
7'
,' In-FIG; 8, the exploded .view shows one form ‘of drag 7.0 .of the bottom surfaceiofthe central runner: sov that’ said
? device(sirnilar "to, each ski. 16 in FIGS. 1, >2 and .4) where
,--__-with
a sheet
topmetal.
?anges-‘1&1(farfasteninglas-tqaalatfmrn)
centralportion 10,0} is provided at each and
end .1 ‘
drag device bottom planes, if extended, will iintersect
.thergplane ofthefbottom surface of thecentral'wrunner,
1 :wherebygt
, 01 provide; maitimum‘area, of _, drag device con
tact ‘with sliding medium ‘during turning.
provided at‘each side with side ?anges 102 useful for
S. A vehicle for use as a sled and the like having a‘
fastening on side plates 103 which, after assembly, can 75
5
3,079,617
platform portion and depending from said platform por
tion a longitudinally extending central pan the width of
which is appreciably less than the width of the platform
portion, a central runner depending from the central pan
and extending longitudinally With the parts con?gured
and arranged so that the central pan may act as a cam
eliminating the possibility of turn resistance from the cen
tral runner when the vehicle is tilted by elevating the cen
tral runner from the supporting medium and further
characterized by the pan having curved edges at least
at the fore part of the vehicle, the platform having drag
devices located on opposite sides of the pan whereby the
front of the pan may skid around on a front curved edge
thereof when the drag device is engaged.
9. A vehicle having a platform, a downwardly depend
ing central runner a?ixed to said platform, a pair of down
wardly depending devices a?‘med to the platform one on
6
to a line running fore and aft through the central run
ner, the bottoms of said corrugations lying in a plane
which is elevated with respect to the bottom of the central
runner.
References Cited in the ?le of this patent
UNITED STATES PATENTS
664,215
1,222,114
1,758,289
2,151,836
2,443,348
2,841,406
2,918,684
2,931,332
2,950,922
each side of the central runner and each having a bot.
Hickson ____________ __ Dec. 18,
McCarthy ___________ __ Apr. 10,
Loy _________________ __ May 13,
Bugatti ______________ __ Mar. 28,
Flajole ______________ __ June 15,
Brandon ______________ __ July 1,
Sackett ______________ ___ Dec. 29,
Hebrank ______________ __ Apr. 5,
Rudine ______________ _._ Aug. 30,
1900
1917
1930
1939
1948
1958
1959
1960
1960
FOREIGN PATENTS
tom surface formed of corrugations angled with respect
399,760
Great Britain _________ .._ Oct. 12, 1933*
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