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Патент USA US3037794

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J1me 5, 1962
Filed Nov. 22, 1960
2 S‘heets-Sheet 1
Filed Nov. 22, 1960
2 Sheets—Sheet 2
my M
United States Patent 0
Patented June 5, 1962
Daniel S. Williams, 394 Spruce St., Pottstown, Pa.
Filed Nov. 22, 1960, Ser. No. 70,950 ‘
use by small or young children learning to skate, and
wherein the skate can be used indoors or outdoors, and
the various parts of the skate are adapted to be made of
a suitable material such as a tough colorful plastic of a
3 Claims. (Cl. 280—11.26)
suitable composition. One of the skates is indicated
generally by the numeral 30, FIGURE 1, and it is to be
This invention relates to a roller skate, and more par
ticularly to a roller skate having an improved mechanism
understood that a pair of the skates 30 are adapted to
be used and each has the same construction and each in
for permitting adjustment between the heel member and
cludes a heel member 31 as well as a sole member or toe
sole member so that the roller skate can be readily and 10 member 32. The heel member 31 is shaped to include
conveniently adjusted to the desired length as desired or
a horizontally disposed base portion 33, FIGURE 2, and
The primary object of this invention is to provide a
roller skate which is adapted to be made of strong light
weight plastic material and wherein the roller skate is
especially suitable for use by young children since the
roller skate of the present invention embodies a novel
adjusting mechanism which permits the child to readily
adjust the skate to the desired length without requiring
the use of any special wrench or the like, or without re
quiring assistance from an adult or other person.
A further object of the invention is to provide a roller
skate which includes a safety back brake which will help
prevent the child using the skates from falling back
wards, forward or turning the ankle, and wherein the
skates of the present invention include a unique adjustable
locking mechanism that permits the user such as a small
child to position the heel and toe members at the proper
location, and wherein after the parts have been adjusted
depending from the base portion 33 and secured thereto
or formed integral therewith is a generally V-shaped
cradle 34 which has a rear axle 35 extending through the
lower portion thereof. A pair of rear wheels 36 are
mounted on the outer ends of the axle 35 as shown in the
The skate 30 further includes a ?anged section which is
indicated generally by’ the numeral 37, and the ?anged
20 section 37 depends from the base portion of the heel
member and as shown in the drawings the ?anged sec—
tion 37 has its lower edge as, indicated by the numeral
38 normally spaced above a surface such as a ?oor sur
face 39 whereby the ?anged section will provide a safety
feature that will help prevent a child from falling back
wards, forward, turning an ankle or the like. The ?anged
section 37 is shaped to include spaced apart side portions
40 which are cut away as at 42 so as to provide clearance
for the wheels 36, and the ?anged section 37 also in
to the desired location, they will remain in that location or 30 cludes a rear portion 43 which is provided with an arcu
position until the child desires to again adjust the length
of the roller skates.
Still another object is to provide such roller skates that
are economical to manufacture and ef?cient in operation
and which are rugged in structure and foolproof in use.
These and other objects of the invention will become
apparent from a reading of the following speci?cation and
ate recess 44.
Extending upwardly from the base portion 33 and
a?ixed thereto or formed integral therewith is a pair of
spaced apart apertured brackets 45, and the numeral 46
indicates a strap which may be made of a suitable ?ex
ible plastic material. The retaining strap 46 is provided
with a plurality of notches or teeth 47 on one end portion
claims, taken with the accompanying drawings, wherein
thereof, while the other end of the strap 46 is provided
like parts are referred to and indicated by like reference
with slots or openings 48 and 49 for receiving the toothed
characters and wherein:
40 portion 47 so that the strap can be maintained in its
FIGURE 1 is a top plan view illustrating a roller skate
proper position on the child’s ankle or foot.
constructed according to the present invention.
The side portions 40 are further provided with upper
FIGURE 2 is a sectional view taken on the line 2-2
skirt portions 41 which are arranged in a generally raised
of FIGURE 1.
position above the rear wheels 36.
FIGURE 3 is a bottom plan view of the roller skate of
The heel member 31 further includes a vertically dis
the present invention, with parts broken away and in
posed end portion 50, FIGURE 10, and the end portion
'50 is shaped to include an intermediate enlarged rounded
FIGURE 4 is a sectional view taken on the lines 4—4
section 51 as well as upper portions 52 of reduced size.
of FIGURE 2.
Vertically disposed spaced parallel brace pieces 53 ex
FIGURE 5 is a view generally similar to FIGURE 4
tend between the rounded section 51 and the cradle 34 and
but showing the parts in a different or adjusted position.
are secured thereto or formed integral therewith so as '
FIGURE 6 is a fragmentary perspective view showing
to help maintain the parts in their proper spaced posi
a portion of the shank with the external threads or ribs
tion or location. There are also provided inclined or an
FIGURE 7 is a fragmentary perspective View showing
a portion of the barrel or tube.
FIGURE 8 is a transverse sectional view illustrating the
locking mechanism of the present invention and showing
the tube with the shank therein and illustrating the parts
gularly arranged brace members 54 which extend between
the brace pieces 53 and the skirt portions 41 and which
are secured thereto, and the numeral 55 designates each of
a pair of spaced parallel vertically disposed brace ele
ments which are secured between the brace members 54
and the enlarged rounded section 51 of the end portion
in unlocked position so that relative movement between 60 50 whereby a rugged construction is provided that pro
the tube and shank can take place.
vides support for the various parts such as the horizon
FIGURE 9 is a view similar to FIGURE 8 but show
tally disposed hollow tubular shank 56. The shank 56
ing the parts in locked position.
FIGURE 10 is a sectional view taken on the line
10-10 of FIGURE 2.
FIGURE 11 is a sectional view‘ taken on the line
11-11 of FIGURE 2.
FIGURE 12 is a sectional view generally similar to
FIGURES 8 and 9, but illustrating a modi?cation.
forms part ‘of an adjustable locking mechanism that is
indicated generally by the numeral ‘57, and the locking
65 mechanism 57 further includes a hollow tube or barrel
58 as later described in this application. ‘As shown in
FIGURE 6 for example the shank '56 includes two groups
or sets of threads or ribs and each group of ribs is indi
cated generally by the numeral 59 and it will be seen that
Referring in detail to the drawings, and more particu
each group 59 embodies a plurality of spaced parallel
larly to FIGURES 1 through 11 of the drawings, there is
arcuate ribs 60which distend an arc of approximately
illustrated a roller skate which is especially suitable for
180°. The ribs'60 are adapted to be provided with slight
surfaces as indicated
the i v to be made of tough unbreakable plastic material and
numeral 61, and each pair of adjacent or continuous ribs _ the skates are appealing in'appearance and also incor
porate or embody certain functional features which are
7 60 de?nes therebctween a'groove 62. The shank 56 is
1y’ ?attenedmoutst.edges 9r,
/ .
believed to be advantageous. The skates can be used in
doors or outdoors and arestrong and light in weight and
the skates include (the ‘?anged section 37 which has its
turmergproridéd with @ Paiwtdiametriwh OPPOSed 1°11
situdinallysatsnding- shannds ,Qf _-I§¢@s§es. 63,, smiths
pair, of, 5 groups woftiribs 59 are ; separated - by, the._ pair vof.
Ihe Shank
-‘ > . a:
loweredget38=garrangedijust above the ?oor surface or
other surface 39m which the skates are being used so
‘in mime-lat
iibitiéniiiiihic? '.
that the ?anged'section 37 Will function as‘ a safety factor
~ iszsrnooth and free'of threadsgor ribs.,,,, t,
ASLShnWn .in ‘the 1 drawings the gsole WW1‘??? 1
orsafctybaek brake ‘whereby in the eventthe child or
which isnprovidedjwith
antunsendins generallypiece
9 is?‘
user starts to fall'jbackwardsor to the side, the edges?’
iivill shove: into engagement with the ‘floor surface'i39 in
toe-:piece. 6,6’, adiacentithe iront thereohwand vdepe ing
order lto'help iria'intai'n the child upright;
vCallydisposed sidemsmbers 6,1, .6291; Qfthe Side;
_, a \
" "
Thegjsiltate includes the sole ‘membe'r‘32which‘ ‘is pro
vid'ed‘with ‘generally ‘closed toe piecef66‘ that is secured
to or ‘formedrlintegral‘with the base piece 65,, and the
‘ 67.;being tshaped .‘to include ,amgenerally tnanguhlarlyr
niece 66 is ‘iadapteid'fto snugly receiv'eftherein the toe por
den‘ of the‘child’s:shoeorfoohahd‘ as shown in the draw‘
are idinediat-lthehrlower?surfacesribynan await CIQSS? , .
> piece 69,;and'1he numeral. 7i1indi9at¢safronta1d€ which * ingsfthere is provided on the ‘rear intermediate portion
7 extends between the side sections 68 and the ax
"0, his
oil-the’ ‘toe piece ‘66, a generallycircular enlangeni'ent 7_8.
v'lThisiprojection'or portion 78 helps guidethe childisshoe
a pain-of; front wheels thaounted theme ,>
’ zirinto the toefp'ortionb? ‘and exerts a wedging
so thatthe skate can be worn more comfortably '
are! Withlithefolllldedssec?bn 53st)? ills-hm liqf?ttlklsil’ » V
and the. shank?éimdapted tqteljesscpe intdthehollqw ' and ‘with ‘less , likelihoodfo'f accidental disengagement of
5 One end orrhesihaaa 56 is secured.tQ-Qr?ifmaiinte:
- when‘; and theiubet5trisr?xectly shunted to the-lower
the shoe'frornthe"skate{,'As shownfin the drawings the
‘gear bortionrof'th‘e ‘toe pieCe6'6'isopen so, that the jchild’s
' surfaced thebase piece 5., the tube's?,1hsinshollowand
h vin'gjits; end;v .open whereby- the ,‘shank156 . can head
shoecan I?t' therein, and ‘the‘entire' front'of‘the‘toe piece
69 ’ A
also .securedto the
tend‘, p'or
tiqnzsfr thumbs. 58:9riOnnedintégra1therewith was to
helpqbracezandsupport the :tube 758,-’ [and the numeral 72'
indicates a horizontallytdisposed; brace ,whichrextends
f'jThe'sk’ate includes the novel locking'rnechanism which
by the nunier'al 57 sorthat the child
30 isrnamnwgmanry
using the skates can readily adjust, the skates'to thenc
siredfjor required length without‘ requiring any special
pull‘or'fwithout requiring outside assistance andv the'lock
between the. sidev sections v36488,,and theybvracer'n is also
secured to the lower portion of the tube SSj-wherebythe f ' ing'mech'a'nism‘ is constructed intsuch a manner that'a'fter
35 it‘ ‘has been adjusted: it"will have‘ aten‘denc'yto remain
tube :WiH‘-.b¢\-PIOP¢Y1Y Supported and-maintained inihe
desired location, Dianietricallyr opposed lbrace-arrnsu’lli
extend bstwesn theinnsrr surface/810i tthetsids sadism-68
stationary in the desired position. The locking mecha
nisnijembodiesgthe‘ shank "56 ‘which is secured to or
forrhed‘ integral‘ with the rOllnded ‘section '51 on the end
and the Souter, surface ofgthe ‘tube 158 was shown’. in
ll in orderto' ?urther'strengthenjand bracethetad¢ f 5' of the heel i'nernber 31, and‘this shank‘ 56 is of a diameter
so ‘that’ it can swivel andmove longitudinally'viwithin, the
jacent elementsj, : ,
hollow"'tube’58, the'tube St’vbeing'?Xedly secured to the
it‘ tube 58 is
~ I
rectedordinwardlydisposed diametrically .jopposeditongues
As showngin th drawingsthe tube isliprovided
sole member 32’. ‘ Theshank 56 include'sithe two {groups
of‘n'bs or ‘threads 59 which'eachcmb'ody ‘the spaced
' parallel larcuate rib members ‘60, yan'dthe ?bfmer'nbers
' or protuberanesjkl,‘ FIGURE 7,
inwardly, ), disposed , thickened ,shoulders‘ or , portions ~.j75
60 'arespacedfrornLeach other‘ so as ‘to , provide grooves
62 therebetween, and there ‘are also .provided the longitu
dinally‘extending‘channels 63. The shank 56 includes
'the smooth portion “which is free of ribs and this
‘ surfacesg?l and "(6V willfpr'ovide':awslight carnrning or
hedging‘, action in lo‘rderwtor jhelp prevent-accidental,r9: ' ' smooth portionfhelps provide _a guiding'velementas for
when initially inserting the shank into tube 58.,
tatipn-br ‘shifting ?fths thank and’ tube relative-to reach 50 example‘
When thelength of the skates is being changed, or
b?iérisffgmltlieir adiilstedlpssitimtt However, tibiae/edg
adjusted, the 'parts'are‘arr'anged so that the 1pair of chan
action a can be’ overcomelby. applying manual Lpressure
have opposed flat surfaces _76_‘ for, coac‘tion with-the
?at surfaces 61 of therigbs v60. sotthat ‘these: coactingg?at
oi the members-31211.1 ?an-that .thee?ectivelength of
‘ nels 63, are in alignment or registry .with the hair of in
isiHuStIateda Slight'mosii?ca?qnr'ofithe tidiustabléllock
shank can be moved in or out of thetube as desired, and
after the?ishankz and tube/have been positioned at the
wardlyvidisno'seditongue's 1410a the'tub‘e '58 whereby the
thearjdllzerjskate cangbe adjusted as‘ desired by the child,
IJReferring nowQto‘ 'FIGUREJVZ of the ‘drawings there’
ing. mechanism which isg-indicated generally .jbyethe numer
desired location ‘relative to each other, the heel member
31 and’, sole member=32 can be turned slightly so as to
57f has generally thesanne construction and operation. as ‘ ‘ cause the tongues 74 tobe moved out of registry‘with
til75t7§~a?d it Willis Seen thattheléckins mechanism 7
the ‘previously, describedilockingarnechanismr 57. 'How
60 the channels :63: Wherebyrno further longitudinal relative
‘ever, the locking, rne‘chanisrn 57.’, includes a shank-56f
whichv ‘I is ‘provided with diametrically “opposed. longitudi
nally: extending: channels-_63v'_ for at timesjreceiving the
tongues '74 of the tube 58 asjfor, example when the length I
the? roller ,skatelis .tofbe eidjustedand in,,addition the
shank- 5:6,’,-v itlcluqes tworvsmuns. 9f .arcuate spaced parallel
ribs'59' ‘which, are vseparated from cachother as,vat-_;7l7‘,
whereasthe ribs :60 shownfintvFlGllRE 6 extend through
, from. the foregoing, :ity is apparent that there, hasgbecn
V .7
the channels 63, the'tongues’will move into engagement
'i'In the
parts areeshown
ribsi601in locked
’ position
sothat no further lengthwise‘ adjustment‘of‘the skates
1.2lth€rib$;59’; enlyzextend . ,
thrpugh?anaarcvqf -_.aPPrOKimate1M Slightly less. than 90?, '
movementbetween the shank and‘, tube can take'place.
When ‘the lugs or tongues 74 move ‘out of engagement with
can occur,‘ While in FIGURE 5 the parts are shown in a
difierent positionwherein the tongues ‘74_ are in registry
70 with the channels 63 so that with the partsin the position
of FIGURE .5. the length ofhthe skates can be varied or
regulatedv as desired. In FIGURE ‘8 the. tongues74 are
ineregistry with the channels 63 ‘so that themechanism S7
use by’ small children
,jwhich areespecially
skate. and wherein'sub
suitable for
is in unlocked position whereby thez-lengthvof thel'skates
stantifally all ofthepartsofithe' rollerlskate‘s are adapted
75 cangbe'changedor varied," while'in- FIGURES the
tongues 74 are out of registry with the channels 63 so
that the skates will be locked.
The ribs 60 are adapted to be provided with outer
?attened surfaces 62, and the tube 58 has inner ?attened
surfaces 76 so that for example as shown in FIGURE
8 when the ?at surfaces 61 and 76 are contiguous to each
other there will be no camming or wedging action, while
when the parts are in the position of FIGURE 9, outer
edge portions of the ribs 60 will snugly engage the flat
URE 6, and wherein the back portion of the skate is
different as for example as shown in the left side portions
of FIGURES 2 and 3 of the drawings, and the skate
embodies or utilizes wheels which are small in diameter,
and also it is to be noted that the toe piece 66 is of a
generally closed construction at its front portion, and the
toe piece 66 is provided with the projection or enlarge
ment 78 thereon, and this construction of the toe piece
insures that there will be a better ?t of the child’s shoe
surfaces 76 so ‘as to exert a holding or wedging action 10 in the skate.
which will help prevent the shank from accidentally ro
tating or turning from its locked position. However, this
holding action can be overcome by the child applying
manual pressure to the parts such as the members 31
Minor changes in shape, size and rearrangement of de
tails coming within the ?eld of invention claimed may
be resorted to in ‘actual practice, if desired.
What is claimed is:
and 32 so that the lengthwise adjustment of the skates 15
1. In a roller skate, a heel member and a sole member,
can take place when desired. In effect by providing the
means adjustable connecting said heel member and sole
slightly flattened surfaces 61 on the shank 56, it will be
member together, said means embodying a hollow tube
seen that the distance between the pair of ?at surfaces or
a?ixed to one of said members *and said tube being pro
sections 61 will be slightly less than the distance or length
vided with a pair of inwardly disposed diametrically op
between points spaced 90° from the ?at surfaces 61 so 20 posed tongues, a shank a?ixed to the other of said mem
that when the ?at surfaces ‘61 are contiguous to the
?attened shoulders 76, there will be no wedging action,
bers, and said shank being provided with diametrically
opposed spaced apart channels ‘for selectively receiving
but when the shank 56 is turned a quarter turn or ap
therein said tongues, an external portion of said shank
proximately ‘ninety degrees, the ?at surfaces 61 will be
having two groups of arcuate ribs, adjacent ribs de?ning
moved away from the ?at shoulders 76 so that the high 25 therebetween grooves for selectively receiving therein said
points on the shank 56 will engage the ?at shoulders 76
tongues, said two groups of the ribs being separated by
to exert the previously described oamming or holding
said channels, said tube being provided with inwardly
disposed shoulders which are provided with ?attened sur
The notched or toothed portion 47 of the strap '46 is
faces, and said ribs having flat surfaces mounted for move
adapted to engage the openings 48 and 49 whereby the 30 ment into and out of a position contiguous to the ?attened
strap can be maintained in its desired position.
surfaces of said shoulders.
The shank 56 is rigidly affixed to or formed integral
2. Ina roller skate, a heel member and a sole member,
with the end portions 50, and the braces 53, 54 and 55
means adjustably connecting said heel member and sole
are arranged in such a manner that the shank will be sup
member together, said means embodying a hollow tube
ported in the necessary horizontal position whereby the
a?ixed to one of said members and said tube being pro
proper alignment can be maintained or insured between
vided with a pair of inwardly disposed diametrically op
the shank and tube of the locking mechanism. Similarly
posed tongues, a shank a?ixed to the other of said mem
the tube 58 is ?rmly a?ixed to the various parts of the
bers, and said shank being provided with diametrically
sole member 32 as previously stated so that the tube
opposed spaced apart channels for selectively receiving
58 will likewise be properly held in the correct position
therein said tongues, an external portion of said shank
for coaction with the shank of the heel member 31.
having two groups of arcuate ribs, adjacent ribs de?ning
The parts can be made of any suitable material and in
therebetween grooves for selectively receiving therein said
di?erent shapes or sizes.
tongues, said two groups of ribs being separated by said
An important aspect or feature of the present invention
channels, said tube being provided with spaced apart
is the unique adjustable locking mechanism as previously 45 diametrically opposed shoulders that have ?at surfaces
described. With the present invention a small child can
thereon, and said ribs having flat surfaces mounted for
properly position the parts so as to adjust the length as
movement into and out of a position contiguous to the
desired, and it is only necessary to move the sole member
?at surfaces of the shoulders, the tongues of the tube
and heel member relative to each other by a twisting
being interposed between the shoulders of the tube, said
action so that the tongues are in registry with the channels, 50 channels having their longitudinal axes arranged at right
and then the members can be adjusted to the desired
angles with respect to the longitudinal axes of the grooves.
length whereby afterwards the heel member and sole
3. In a roller skate, a heel member and a sole member,
member can be returned to their normal position so that
said heel member including a horizontally disposed base
the base portion 33 ‘and base piece ‘65 are co-planar
portion, a V-shaped cradle depending from said heel
whereby the skate will be in the desired locked position. 55 member, a horizontally disposed rear axle mounted in
The upper surfaces of the base portion 33 and base piece
said cradle, rear wheels'connected to the ends of said
65 are adapted to be roughened so as to help prevent
axle, a ?anged section depending from said heel member
slippage between the child’s shoe and these parts, and
and said ?anged section having its lower end terminating
this roughened surface is indicated generally by the nu
at a point just above the lower periphery of the rear
meral 79 in FIGURE 11. The locking mechanism is 60 wheels, said ?anged section including spaced apart side
constructed so that the parts can be readily ‘and easily
portions which are cut away to provide clearance for the
adjusted even by a small child, and the skates can be made
rear wheels, the side portions further embodying upper
inexpensively by utilizing plastic materials for the various
skirt portions, said ?anged section further including a rear
parts. In addition the skate incorporates the safety fea
portion provided with an arcuate recess, apertured brack
tures as previously stated such as the safety brake which 65 ets extending upwardly from the rear of the heel mem
includes the ?anged section 37. When the heel member
ber, a strap extending through said apertured brackets, a
and toe member are aligned they will be locked, as for
vertically disposed end portion depending from the front
example whenthe parts are in the position shown in
of the heel member, said, end portion including an inter
mediate enlarged rounded section and upper portions of
It is to be noted that according ‘to the present invention 70 reduced size, vertically disposed spaced parallel brace
there has been provided an improved roller skate which
pieces extending between said cradle and the rounded
differs from prior roller skates by including or embody
section and ai?xed thereto, inclined brace members ex
ing a di?erent strap, and wherein there is provided a
tending between said brace pieces and said skirt portions,
different locking mechanism which includes the straight
spaced apart brace elements extending between said brace
spaced parallel grooves, as for example as shown in FIG 75 members and end portion and secured thereto, a hori
=zontal1y disposed-hollow: shank 'a?ix'ed' .to v the intermediate
enlargedrounded section of said end--portion,- saidsli'ank
having: on its. exterior‘ two 1 groups n of spaced‘ apart ‘arcu'ate
.ribs; ‘there *being- groov'esnde?ned? between. adjacent‘ - ribs,
"the ends-‘oft the; ribs being'separated'from teachcotberv-lby
diametrically~._opposed longitudinally'lextending ‘channels,
said‘ribs having-?attened {outer-"surfaces. thereon,; said
:shzink further‘ including ‘ a smooth outer 'end- portion'iree
said‘ arms‘lextendingrbetween said triangular sections and
tube and secured thereto, a- pair/‘of‘ diametrically opposed
tongues Iprojeeting inwardly from an end of saidv tube for
:selectively1z'lengaging, the grooves; and , channels of ;the
jshanki-theinterior of’ the, tube being proyided With‘dia
metrically ‘opposed; thickened-shoulders’ having‘ ?at sur
faces, th'e?ab‘surfaces vof?the ribs, being mountedfor
‘movement;towardshandl away from the ?at surfacesof
:ofiribs; ‘said hole member; further including va horizontally
the should
disposed base piece'having an upstanding generally closed :10 if
toe'zpiece adjacent; the front thereof, aglpairi .of :spa‘ced
apart side;members,dependingifrom said :base piece, and
said side members .:including3 enlarged agenerallyiriangular
a ReferencesCitedin the y?lefof'thispatentv
vmrwsgms PATENTS "
shaped sections which are joined atltheinlowe'r surfaces
:by > art-jarcuatev crosspiece, a front‘ axle “extending between
7 said 1 triangular. shaped I'sections - andsarranged .;above ‘ said
' .crosspiece, ‘5 front Ext/heels’ - journaled= on ‘the :ends @ofe said‘
~~front :a'xle, a horizontally disposedopena endedytube, ifor
ndjuvstably: receiving "therein “said Eshank, end isaidytube
having ratportion: :thereof "a?ixed to: the lower; surface. of
saidbasepiece,saidrtube beingvalsoga?ixedito said cross
7 -,pi'ece~,::a horizontally;disposed-brace ; extending ‘between
;_named brace being 'also , af?xed to; said- tnbegldia'metrically
lopposed arnisfpositioned'above saidlast normed brace and P25
Great Britain __'___
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