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Патент USA US3091206

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May 28, 1963
J. c. HIRSCH
3,091,196
TABLE TENNIS TABLE
Filed Jan. 12, 1962
'IHIII 1
IN van-r02
JAMES C. HIRSCH
enemas
Patented May 28, 1963
2
forming pieces to permit the latter to be pivoted about
3,091,196
longitudinally spaced points into a pyramid structure.
_
TABLE TENNIS TABLE
Cross members preferably interconnect the corresponding
James C. Hirsch, Highland Park, Ill., assignor to Klauher
leg-forming portions of the leg-forming pieces and are
Games, Inc., Chicago, 11]., a corporation of Illinois
5 positioned to engage the table halves when they are pivoted
Filed Jan. 12, 1962, Ser. No. 165,897
into a pyramid structure. A single person can easily
pivot either table half into a stable upright position by
grasping the outer end thereof and lifting it up to pivot
The present invention relates to table tennis tables,
and more particularly to an improvement in the table
the same upon the associated pivot bolts. The table half
tennis table disclosed in my U.S. Patent No. 2,911,217, 10 is pivoted into a position somewhat beyond the vertical
granted November 3, 1959. The table tennis table dis
where the then bottom portion of the table half engages
one of the cross members which prevents the table half
closed in this patent comprises two table halves which are
from moving beyond this point. The weight of the table
swingable into an upright position where the table halves
half maintains itself ‘against the latter cross member.
form a compact stable pyramid structure supported upon
rollers, enabling the table assembly to be readily moved 15 When both table halves are pivoted into an upright posi
about to facilitate storage thereof when not in use. The
tion, they form a stable pyramid structure. A tie-rod or
structure for enabling the table halves to be folded into
the like is secured between the table halves to prevent
a pyramid structure comprises roller-carrying members
the accidental reverse swinging of the table halves away
from the cross members to a point beyond the vertical
connected between the tops of the table halves and sup
porting the same for relatively pivotal movement about 20 where they can fall under their own weight.
8 Claims. (Cl. 108-112)
relatively widely spaced horizontal lateral axis.
Other objects, advantages and features of the invention
will become apparent upon making reference to the speci
are relatively short members which, in the set up or un
?cation to follow, the claims and the drawings wherein:
folded condition of the table assembly, are spaced sub
FIG. 1 is a perspective view of the table tennis table
stantially above the floor, the inner ends of the table 25 assembly of the present invention in a set up condition
halves being supported by separate foldable legs at the
where it forms a normal, full-sized table tennis table;
inner ends of the tables. In folding the table assembly
FIG. 2 is ‘an enlarged fragmentary plan view, partly
broken away, of the table assembly shown in FIG. 1, and
into a pyramid structure, the latter legs are folded
to permit the inner ends of the tables to drop to a point
illustrates the manner in which the inner ends of the
near the floor level where the rollers of the roller-carry 30 table halves are interconnected;
ing members engage the ?oor. Then the table halves
FIG. 3 is an enlarged exploded view of one of the leg
The roller-carrying members disclosed in this patent
are pivoted upon the roller-carrying members into an
forming members and the adjacent portions of the table
upright pyramid structure where the structure is securely
maintained by connecting the upper ends of the tables
halves to which it is connected;
FIG. 4 is a side elevational view showing one of the
together.
35 table halves folded up to form a ball return wall;
It is an object of the present invention to provide an
FIG. 5 is a fragmentary side elevational view through
improvement in vthe type of table tennis table assembly
the table assembly where both table halves are in an up
disclosed in the above-mentioned patent, which im
standing position and are interconnected by a tie-rod;
provement permits the table assembly to be folded into a
and
pyramid structure with much greater case than is possible 40
FIG. 6 is a sectional view through FIG. 5, taken
with the table structure disclosed in this patent. A fur~
substantially along the line 5—5 therein.
ther object of the invention is to provide a table tennis
Referring now to the drawings, the table tennis table
table as just described wherein either table half can be
assembly comprises a pair of identical table halves 2-2
stably supported in an upright position where it can be
each comprising a rectangular table top 4 having the di
45 mensions of one-half of a conventional table tennis table
tice by himself. A related object of the invention is to
top, and including the usual longitudinal center line 6
provide a table tennis table assembly as just described
suitably marked on the top thereof. Each table top is
which does not require the aforesaid foldable legs at the
made of a sheet of plywood, composition board 4a or
inner ends of the table halves. A still further object of
the like having rim members 4b depending from the
the present invention is to provide a table tennis table 50 margins thereof. Each of the table halves further in
assembly as just described which is extremely sturdy
cludes a pair of legs 8-8 at the outer corners thereof
and comprises simple, inexpensive parts which can be
which are folda-ble along the adjacent sides of the table
shipped in a compact knock—down condition and which
top, in the manner commonly found ‘in card tables and
can easily be assembled into an integral foldable as
the like.
sembly.
‘In accordance with the present invention, the table
In accordance with one aspect of the present inven
tennis table assembly additionally includes a pair of leg
tion, the foldable legs on the inner ends of the table
forming pieces Ill-46 positioned on opposite sides of the
halves described in my patent are replaced by a leg struc
inner ends of the table halves. These leg-forming pieces
ture extending on the outside of the table halves and in
perform a multitude of functions, among them being the
used ‘as a ball return wall permitting one person to prac
terconnecting and supporting the inner ends of the table 60 securing together and supporting of the table halves 2--2
halves in a normal horizontal playing position. In its
in a horizontal playing position shown in FIG. 1 and
preferred form, the leg structure includes a pair of in
the formation of a pivot support for the two table halves
verted U-shaped leg-forming pieces on opposite sides of
enabling them to be easily swung by a single person into
the table halves and each having longitudinally spaced
a stable folded pyramid structure shown in FIG. 5. Also,
vertical leg-forming portions extending substantially for 65 in
a manner to be described the leg-forming pieces have
the full height of the table, and having rollers on the
‘a pair of cross members 11—11 extending transversely
bottom thereof and an upper bridging portion extending
therebetween permitting either table half to be moved
preferably along and between the sides of the table halves
into a self-supporting upstanding position shown in FIG.
at the inner ends thereof. A pair of longitudinally spaced
pivot bolts or the like pivotally interconnect the bridging 70 4, where the table half acts as a ball return wall permit
ting one player to practice by himself. The cross mem
portions of the leg-forming pieces and the table halves
bers also maintain both table halves in their pyramid
at points inwardly of the leg-forming portions of the leg
3,091,196
3
4
,
forming position and form a rigid integral roller frame
structure.
As illustrated, each of the leg-forming pieces 10-10
comprises a short, generally inverted U-shaped member
which is preferably a bent metal tube having depending
leg-forming portions Illa-10a and a bridging portion
10b ?xing the spacing between the leg-forming portions
table top on the fly, the ball then bouncing back upon the
other horizontal table top to simulate the return of the
ball by the opposing player.
It is apparent from the ‘description of the invention
given above, that the table assembly of the present inven—
tion is an exceedingly simple, stable, and compact ar
rangement considering all of the advantages thereof‘ and
so that the latter can fit through an average sized door
, uses to which the assembly can be put. Also, the assem
way when oriented across the doorway. Rollers 14-14
" bly is so constructed that it can be packaged and shipped
are attached to the bottoms of the leg-forming portions 10 in an un-assembled or knocked-down condition, greatly
Illa-10a, the rollers preferably being of the universal
facilitating the shipping and handling thereof enroute
type where the rollers are freely pivotable about a ver
to the ultimate consumer. Moreover, due to the manner
tical axis in the usual and well known way for universal
in which the table halves are assembled, ‘women and
rollers. Each of the bridging portions 10b of each of
older children can readily set the table up into'a playing
the leg-forming pieces ‘10 is secured to and supports the 15 condition shown in FIG. 1 or fold it up into a storage con
contiguous upper side portions of the table tops 4-4
dition. Because of the extreme simplicity of the roller
in a horizontal plane when the table halves are positioned
in juxtaposed set up relation by means including pivot
carrying leg-forming pieces 10-10, it is apparent that
the manufacturing cost of the table assembly having the
bolts 20-20 passing through longitudinally spaced holes
advantages of the present invention is not very much
21-211 in the bridging portion 10b and corresponding 20 greater than the manufacturing cost of an ordinary non
oversized holes 21’-21' in the rim members 4b-4b of
the table tops. Wing nuts 22-22 thread over the inner
ends of the bolts to tie the leg-forming pieces 10-10 and
the table tops together. For reasons to be explained, the
holes 21 and 21’ are located inwardly of the leg-forming 25
portions 10a-10a of the leg-forming pieces 10-10‘.
When the table is set up as shown in FIG. 1, the inner
portable table tennis table assembly. '
It should be understood that numerous modi?cations
may be made of the preferred embodiment of the inven
tion above described without deviating from the broader
aspects of the invention.
What I claim as new and desire to protect by Letters
Patent of the United States is:
‘
ends of the table tops 4-4 are in contact, and the wing
1. A table tennis table assembly comprising: a pair
nuts 22-22 are tightened securely to ?x the table halves
of table halves having table tops which form a table tennis
in their juxtaposed normal playing positions. The axes 30 table when positioned in horizontal juxtaposed relation,
of the pivot bolts 20-20 attached to each table top are
and leg support structure for supporting said table halves
in lateral alignment and are widely spaced apart. When
in said horizontal juxtaposed relation and also in a storage
the nuts 22 are loosened, the oversized holes 21'-21'
position where the table halves extend upwardly and in
permit the table tops to be pulled apart a small distance
wardly to form a pyramid structure, said leg structure
35
to permit one table top to be pivoted about its aligned
comprising leg-forming portions on each side of the table
pivot bolts.
A not 23 is connected in any suitable way to the bridging
portions 10b-10b of the leg-forming pieces 10-10, as
by frame posts 24-24 ?tting into slots 24'-24? in the
halves, said leg-forming portions resting on the lloor in
the normal playing position of the table and supporting
at least the inner ends of said table halves in a horizontal
playing position, means for supporting each of said table
40
bridging portions 10b-10b.
'
halves for pivotal movement upon said leg structure, about
The aforesaid cross members 11-11 extend between
horizontal transversely aligned pivot axes positioned sub
and are clamped or otherwise secured between the upper
sections of the corresponding leg-forming portions of the
pieces 10-10, to form a rigid roller support structure.
stantially outwardly of the inner ends of the table halves,
involved when in a horizontal playing position and at
substantially ?xed elevations near the upper extremities
As illustrated in the drawings, the ends of each of the 45 of said leg-forming portions of the leg snructure, and
cross members curve around the leg-forming portions
stop means located outwardly of the pivot axes of each
10a-10a and are clamped thereto by clamp plates 13-13
table half for engaging the bottom end portions ofrthe.
associated table half when the outer end thereof is pivoted
When the wing nuts 22-22 are loosened and one of
upwardly and inwardly beyond the vertical, to, hold the
the table tops is pivoted upwardly about the axes ‘of their 50 table half in an upwardly and, inwardly inclined posi
respective pivot bolts 20-20 to a point where it passes
tion, independentlyof the other table half.
beyond the vertical, the weight of thejtable top will_ bias
2. A table tennisvtable assembly comprising: a pair of
the then lower. end of the table top against the adjacent
table halves having table tops which form a table tennis
cross member '11 positioned outwardly of the latter pivot
table when positioned in. horizontal juxtaposed relation,
and bolt and nut ‘assemblies 15-15.
bolt so that the table top remains. in an upwardly and 55 and leg support structure for supporting said table halves
inwardly inclined position. The outer legs 8-8 may be
folded before or after the table top is raised. The fold
ing of a single table top as just described forms, a self
in said horizontal juxtaposed relation and also in a storage.
position where the table halves extend upwardly and in-.
wardly to form a pyramidal structure, said leg structure
practicing table. The other table top may be raised into"
comprising a pair of longitudinally-spaced leg-forming
a similar self-supported upwardly and inwardly extending 60 portions on each side of the table. halves and located out
position to complete a pyramidal table top structure
wardly of the, inner ends of the table halves when they
which provides appreciable stability. The upper endsof
are in said juxtaposed relation, said leg-forming portions
the table tops may be securely locked together into the
resting on the ?oor in the normal playing position of the
pyramidal shape by any suitable means, such as by a
table assembly and supporting at least the inner ends of
65
wire rod 25 having inturned ends 26-26 press ?tted into
said table halves in a horizontal playing position, bridging
holes 27-27 in the side rim members 4b-4b of the
portions interconnecting the leg-forming portions on each
table tops. In the folded condition of the tablelassembly
side of the table assembly to ?x the longitudinal spacing
it can be \wheeled through a doorway by orienting the
thereof, and means for supporting each of saidtable
same so that the leg-forming piece 10-10 extend across
70 halves for pivotal movement upon said leg structure about
the doorway. To set up the table tennis table assembly,
horizontal transversely aligned pivot axes positioned sub
the setup process just described is reversed.
stantially outwardly of the inner ends of the table halves
In using the table assembly as a self-practicing table
involved when in a horizontal playing position andat sub
with only one table top in an upstanding position as shown
stantial-ly ?xed elevations near the upper extremities of
in FIG, 4, the ball is hit so as to strike the upturned 75 said leg-forming portions of the leg structure, and stop
3,091,196
I
5
means engaging the outwardly facing sides of the bottom
portions ‘of the table ‘halves when the outer ends thereof
are pivoted upwardly and inwardly beyond the vertical,
to hold the table halves individually in upwardly and in
wardly inclined positions where they form a pyramid
structure.
3. A table tennis table assembly comprising: a pair oi:
table halves having table tops which form a table tennis
table when positioned in horizontal juxtaposed relation,
tween and along the sides of the table tops when in said
horizontal juxtaposed relation, means pivotally supporting
each of said table tops upon said bridging portions of the
inverted U-shaped members for movement about hori
zontal transversely aligned axes, stop means extending
between the corresponding leg-forming portions of said
inverted U-shaped members and located outwardly of
said pivot axes for engaging the bottom ends of the asso
ciated table tops when the outer ends of the table tops are
and leg support structure for supporting said table halves 10 pivoted upwardly and inwardly beyond the vertical, and
means for supporting the outer ends of the table tops in a
in said horizontal juxtaposed relation and also in a storage
horizontal position comprising foldable legs in the outer
position where the tables halves extend upwardly and
corners of the table tops.
inwardly to form a pyramidal structure, said leg structure
6. A table tennis table assembly comprising: a pair
comprising a pair of longitudinally-spaced leg-forming
portions on each side of the table halves and located out 15 of table halves having table tops which form a table
tennis table when positioned in horizontal juxtaposed rela
wardly of the inner ends of the table halves when they
tion, and leg support structure for supporting said table
are in said juxtaposed relation, said leg-forming portions
halves in said horizontal juxtaposed relation and also in
resting on the ?oor in the normal playing position of the
a storage position where the table halves extend upwardly
table assembly and supporting at least the inner ends of
and inwardly to form a pyramid structure, said leg struc
said table halves in a horizontal playing position, bridging
ture comprising leg-forming port-ions on each side of the
portions interconnecting the leg-forming portions on each
table halves, means for supporting each of said table
side of the table assembly to ?x the longitudinal spacing
halves for pivotal movement upon said leg support struc
thereof, and means for supporting each of said table halves
ture about horizontal transversely aligned pivot axes posi
for pivotal movement upon said leg structure about hori
zontal transversely aligned pivot axes positioned substan 25 tioned outwardly of the inner ends of the table halves
involved when in a horizontal playing position, and stop
tially outwardly of the inner ends of the table halves in
means located outwardly of the pivot axes of each table
volved when in a horizontal playing position and at sub
half for engaging the bottom end portions of the asso
stantially ?xed elevations near the upper extremities of
ciated table half when the outer end thereof is pivoted
said leg-forming portions of the leg structure, and means
comprising cross members located outwardly of said pivot 30 upwardly and inwardly beyond the vertical, to hold the
table half in an upwardly and inwardly inclined position
axes and extending between the corresponding leg-forming
independently of the other table half.
portions of the leg structure opposite each table half for
7. A table tennis table assembly comprising: a pair
engaging the bottom portions of the table halves when the
of table halves having table tops which form a table tennis
outer ends thereof are pivoted upwardly and inwardly
beyond the vertical to hold the table halves in upwardly 35 table when positioned in horizontal juxtaposed relation,
and leg support structure for supporting said table halves
and inwardly inclined positions where they form a pyramid
in said horizontal juxtaposed relation and also in a storage
structure.
position where the table halves extend upwardly and in
4. A table tennis table assembly comprising: a pair
wardly to form a pyramidal structure, said leg structure
of table of table halves having table tops which form a
table tennis table when positioned in horizontal juxtaposed 40 comprising a pair of longitudinally-spaced leg-forming
portions on each side of the table halves and located out
relation, and leg support structure for supporting said
wardly of the inner ends of the table halves when they are
table halves in said horizontal juxtaposed relation and
in said juxtaposed relation, said leg-forming portions sup
also in a storage position where the table halves extending
upwardly and inwardly to ‘form a pyramidal structure, said 45 porting at least the inner ends of said table halves in a
leg structure comprising a pair of inverted U-shaped mem
bers on opposite sides of said table halves and each includ
horizontal playing position, bridging portions intercon
necting the leg-forming portions on each side of the
table assembly to ?x the longitudinal spacing thereof, and
means for supporting each of said table halves for pivotal
the ?oor and supporting said table tops in said horizontal
movement upon said leg structure about horizontal trans
juxtaposed relation, and a horizontal bridging portion
versely aligned pivot axis positioned substantially out
extending between and along the sides of the table tops
wardly
of the inner ends of the table halves involved when
when in said horizontal juxtaposed relation, means pivot
in a horizontal playing position and near the upper ex
ally supporting each of said table tops upon said bridging
tremities of said legeforming portions of the leg structure,
portions of the inverted U-shaped members for movement
about horizontal transversely aligned axes, and stop means 55 and stop means engaging the outwardly facing sides of the
bottom portions of the table halves when the outer ends
extending between the corresponding leg-forming portions
thereof are pivoted upwardly and inwardly beyond the
of said inverted U-shaped members and located outwardly
vertical, to hold the table halves individually in upwardly
of said pivot axes for engaging the bottom ends of the
and inwardly inclined positions where they form a pyramid
associated table tops when the outer ends of the table
ing a pair of depending leg-forming portions for engaging
tops are pivoted upwardly and inwardly beyond the 60 structure.
8. The table tennis table assembly of claim 6 wherein
the stop means for each table hal-f comprise means pro
5. A table tennis table assembly comprising: a pair of
jecting laterally inwardly from each leg-forming portion
table halves having table tops which form a table tennis
which means engages the outwardly facing side of said
table when positioned in horizontal juxtaposed relation,
and leg support structure for supporting said table halves 65 bottom end portion of the associated table half.
vertical.
in said horizontal juxtaposed relation and also in a storage
position where the table halves extending upwardly and
inwardly to form a pyramidal structure, said leg structure
comprising a pair of inverted U-shaped members on op
References Cited in the ?le of this patent
UNITED STATES PATENTS
posite sides of said table halves and each including a pair 70
of depending leg-forming portions for engaging the floor
2,545,064
2,792,270
2,901,304
and supporting said table tops in said horizontal juxtaposed
relation, and a horizontal bridging portion extending be
2,911,217
2,978,754
Alch ________________ __ Mar. 13,
Anderson ____________ .... May 14,
Fihe ________________ __ Aug. 25,
Hirsch et a1 ____________ __ Nov. 3,
1951
1957
1959
1959
Wilson _______________ __ Apr. 11, 1961
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