US3477716A

US3477716A - Cantilevered ball cushion

Info

Publication number: US3477716A
Application number: US625137A
Authority: US
Inventors: Louis Bender
Original assignee: STANDARD PLASTIC PRODUCTS Inc
Current assignee: STANDARD PLASTIC PRODUCTS Inc
Priority date: 1965-03-15
Filing date: 1967-03-22
Publication date: 1969-11-11
Anticipated expiration: 1986-11-11
Also published as: US3319958A

Description

Nov. 11, 1969 i 1 .BENDER 3,477,716

CANTILEVERED BALL CUSHION Original Filed March l5, 1965 3 Sheetssheet l 58 56 x28 48 g/v-M 62 40 126 62 fx"r s 13o 6o i 64 66 64 66 ,N7 raf* Eff 5 o 6e as 74 :Nvamoa Louls BENDEP BY fr r ATTORNEYS.

Nov. 11, 1969 L. BENDER 3,477,716

CANTILEVERED BALL CUSHION 3 Sheets-Sheet Original Filed March l5, 1965 INVENTOR LOUIS BENDER BY AT TOR NEYS.

Nov. 11, 1969 L. BENDER CANTILEVERED BALL CUSHION Original Filed March l5. 1965 3 Sheets-Sheet .3

INVENTOR LOUIS BENDER BY n .lf q '/'7 V ATTORNEYS.

United States Patent 3,477,716 CANTILEVERED BALL CUSHION Louis Bender, Plainfield, NJ., assigner to Standard Plastic Products, Inc., South Plainfield, NJ., a corporation of New Jersey Original application Mar. 15, 1965, Ser. No. 439,901, now

Patent No. 3,319,958, dated May 16, 1967. Divided and this application Mar. 22, 1967, Ser. No. 625,137

Int. Cl. A63d 15/06 U.S. Cl. 273-9 1 Claim ABSTRACT OF THE DISCLOSURE4 A resilient cushion for a pool table having a base of substantial cross-section which is pressfittable in a groove surrounding the table playing area and a downwardly arcuately extending lip integral with said base and ex tending away therefrom over the edge of the playing area.

CRossREFERENcE To RELATED APPLICATIONS `This application is a division of copending U.S. applica-l tion Ser. No. 439,901 filed by me on Mar. 15, 1965 for Pool Table With Hollow `Reinforcing Rim Constituting Pocket Connected Ball Conveying Means, now Patent 3,319,958. l

BACKGROUND OF THE INVENTION Field of the invention v The present invention relates to a resilient cushion for a pool table.

SUMMARY The pool table cushion comprises a main body portion of resilient material which is press ittable into a groove surrounding the edge of the playing surface of the pool table. Protruding from the upper edge of the vertical surface closest to the playing area is an inwardly `and downwardly extending resilient lip that extends over the playing area and serves as the cushion.

BRIEF DESCRIPTION OF DRAWINGS DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the dawings in detail, and particularly to FIG. 1 thereof, the pool table embodying the present invention is generally designated by the reference numeral 10. Pool table 10 includes a base 12 and a foldable or collapsible leg support structure 14. The base 12 is made of an upper portion 16 and a lower portion 18 which are `joined together in a manner to be described hereinafter. The leg support structure 14 consists -of two pairs of interconnected legs one pair being designated by the reference numeral 20 and the other by the reference numeral 22. Leg pair 20 includes two

legs

24 and 26 which are integrally joined at their tops by a cross piece 148 (FIG. 3). Leg pair 22 includes two

legs

28 and 30 which are integrally joined at their tops by a cross piece 156.

Legs

24 and 26 are bracedon each other by

tie rods

32 and 34 and legs V28 and 30 are braced on each 3,477,716 Patented Nov. 11, 1969 ICC other by

tie rods

36 and 38. The manner of securing the pairs of legs to the table 'base 12 will be described subsequently in this specification.

As previously stated, the base 12 of pool table 1l)` comprises an upper portion 16 and lower portion 18. Both upper and

lower portions

16 and 18 are preferably vacuum formed from a suitable thermoplastic material such as, for example, polymethylmethacrylate; vinyls such as polyvinylchloride, vinylchloride, vinyl acetate copolymer; acrylonitrile-butadiene-styrene plastics; syrene homopolymers andcopolymers; polyolens such as polyethylene, polypropylene, all/of which may be filled or unfilled, and other suitable thermoplastic materials. The presently preferred material is styrene.

Portions

16 and 18 could be otherwise formed such as by injection molding. As seen in FIG. 2, the upper portion 16 is provided with a rectangular planar surface portion 40 with an upwardly extending concave peripheral marginal portion 42. The peripheral marginal portion 42 isi'formed by an upwardly vertically extending marginal wall 44 which is bent into a short downwardly extending wall 46 that terminates in a horizontal surface 48 of short extent that is ntegrai with another upwardly extending wall 50. The

portions

46, 48 and 50 define a recess 52 for receiving the bumper 54to be described in greater detail hereinafter. The ups wardly extending peripherally continuous wall 50 terminates at its upper edge in an outwardly and downwardly extending surface 56 which at its lower edge (which is substantially coplanar with surface 40) is provided with an outwardly bent peripherally continuous marginal flange 58.

The lower base portion 18 includes a rectangular, horizontal surface portion 60 which is broken by a number of longitudinally extending V-shaped grooves 62 which are vacuum formed in the bottom portion 18 as by providing two downwardly and inwardly extending

groove Wall portions

64 and 66 which terminate in an integrally formed horizontal groove bottom 68. As shown in FIGS. 3 and 4, there are eight longitudinally extending grooves 62 although any suitable member may be provided. The purpose of the longitudinally extending grooves 62 in the bottom horizontal surface 60 is to stiften the bottom horizontal surface 60 against flexure in the longitudinal direction. The horizontal surface 60 is of substantially the same marginal extent as upper horizontal surface 40 and is surrounded by a downwardly extending concave peripherally continuous marginal portion 61 of line width as top concave portion 42. Concave portion 61 includes a downwardly extending wall portion which curves at its bottom into a horizontally extending track forming portion 72. The left hand end of the track portion 72 as viewed in FIG. 2 is integrally connected with a downwardy extending wall 74 which in turn is integrally connected with the outer wall 76 having at its upper edge an outwardly extending iiange 78 in surface-to-surface relation with the flange 58. The downwardly extending portion 74 and the lower part of the outer wall 76 of bottom 18 form a skirt 80, the purpose of which is to give a uniform height to the entire base 12 ofthe pool table 10 notwithstanding the fact that portion 72 of the base 18 slants from the rear end of the table to the front. This slanted track is designated on one side of the central receiving portion or station 82 by the reference numeral 84 and on the other side by the reference numeral 86.

As best seen in FIGS. 5 and 6, the central ball receiving recess or station 82 is formed substantially wholly in the bottom 18 of base 12 and has a base portion 88 and a rear wall portion 91 both of which are formed integrally with the bottom 18. The base 88 is shown disposed below the bottom of the skirt 810 formed by the downwardly extending wall portion 74 and the outer wall 76. A large aperture 90 is provided in the side wall 76 of the ,front 92 of base 12, which aperture 90 is` adapted'toermit the insertion of a players hand for the removal of balls from ball receiving station 82. It will be seen that the

ball tracks

84 and 86 are in direct `communication with the central ball receiving station 82 and, as will be understood more fully hereinafter, las

balls move down the tracks S4 and 86 they will drop into the central ball receiving station 82 (FIG. 4). As seen in FIG. 1, inthe top portion 16 of base 12, principally in the upwardly extending marginal concave portion 42, are six ball receiving apertures or

pockets

94, 96, 98, 100, 102 and 104,`a small portion of each of which is provided in the horizontal surface 40 of top portion 16. That part of each of the pockets 94 to 104 inclusive which extend through the marginal concave portion 42 of top 16 are defined by arcuate vertically extending

Walls

106, 108, 110, 112, 114 and 116, respectively. Each of the apertures 94 to 104, when the base is assembled in the manner to be described hereinafter, is in register with

track

84 or 86 in the bottom part 18.

As is customary with all quality pool tables, cushions are provided along the -marginal wall 44 of the playing surface of the pool table to permit balls impinging against said marginal wall to bounce therefrom in accordance with the play of the game. One of the major problems that has been encountered in previous inexpensive pool tables is that of obtaining suiiicient bounce or resiliency in the cushions. In accordance with the present invention the cushions 54 are made of a suitable highly resilient material such as rubber or neoprene or, preferably, ethylene copolymer in an extruded form having a substantially rectangular base portion 118 with an inwardly directed horizontal portion 120 which terminates in a downwardly curving lip 122 located to fend a ball 124 off from the wall 44 and to impart to any ball impinging thereagainst substantial bounce. Of course, the cushion could be injection molded. The rectangularly cross sectioned base portion 118 is of slightly larger transverse dimension than the width of the bumper receiving cavity 52 so that when it is forced into the cavity 52, it will remain so positioned by virtue of friction. That is, it is press-fitted into cavity or groove 52. Of course, other means of securing the bumper to the table may be employed such as adhesives, staples, screws, etc. Moreover, base portion 118 need not be solid as shown. It should be grooved if desired.

Pocket deilectors

107, 109, 111, 113, 115 and 117 may be provided at the upper edge of each of the arcuate downwardly extending wall portions 106 to 116 respectively surrounding the pockets 94 to 104,l respectively, which deflectors are shaped to deflect any ball impinging thereagainst downwardly to insure that a ball being hit into a pocket will not bounce out of that pocket. To provide a suitable surface for the pool playing a piece of felt is glued to the upper surface of horizontal base portion 40 and, preferably, to the upwardly extending vertical marginal wall portion 44. The felt surface is shown in FIGS. 1, 2 and 5 and is designated by the reference numeral 126.

To construct a pool table base 12 in accordance with the aforedescribed structure, a sheet of suitable thermoplastic material is placed in a mold for forming the top part 16, the sheet of thermoplastic material is heated and a vacuum is drawn to cause the upper part 16 to be formed as previously described. After cooling and removal from the mold, the six apertures 94 to 104 defining the pockets are punched out of the sheet. Thereafter, the felt which has been precut to conform to the shape of the rectangular playing surface, as modied by the pockets 94 to 104, is laid over the surface which has been theretofore suitably coated with an adhesive and is accordingly glued to the top surface of horizontal support 40 and to the vertically extending marginal wall 44. Then the cushions 54 are placed between the

pockets

94 and 96, '96 and 98, 98 and 100, 100 and 102, 102 and 104, and 104 and 94 by pressing their rectangular base 4 portions54 into. the recessV 52Vin the concave part 42 of the upper base portion 16. The arcuate downwardly acting

deectors

107, 109, 111, 113, 115 and 117 are similarly connected around their associated pockets.

In a parallel operation, the bottom part 18 of base 12 is also vacuum-formedv in a'conventional manner from a thermoplastic sheet-in accordance with the aforedescribed construction. Afterremoval from the vacuum `forming mold, the aperture in the central ball receiving station 82 is punched or otherwise cut out of the front wall of the bottom part 18, that is, wall 92.

In accordance with the present invention the upper and

lower parts

16 and 18 are now joined. The joining of these two parts is accomplished by coating the lower surface of horizontal portion 40 and, if desired, the upper surface of horizontal portion 60, with a suitable adhesive such as, for example, epoxy, rubber resin contact cement, and so forth. After the adhesive is applied to portion 40, the horizontal portion 60 of bottom part 18 is pressed into adhering relation therewith, the two parts ybeing aligned so that their outwardly extending ilangesSS and 78 are in register around the entire periphery'of the table base 12. At the completion of the gluing step the top and

bottom portions

16 and 18, respectively, are joined at their anges 58 and 78 in any suitable fashion such as by adhesives or rivets or the like. Preferably, however, the joining of these two flanges is accomplished by means of staples 128. After stapling

ofthe flanges

58 and 78 around the entire marginal extent thereof is accomplished, a resilient protector with a V-shaped cross section may be disposed about both joined flanges to provide for protection and improved appearance. This V-shaped member is herein designated by the reference numeral 130. Of course, other means, such as metal channels, may be employed to cover the

connected flanges

58 and 78.

By providing two relatively thin plastic sheets in laminar adhering relation, as is true of the

parts

40 and 60 of the top and

bottom portions

16 and 18 of base 12, and by surrounding these glued together surfaces by a hollow marginal box-like portion 132 defined by the upwardly extending concave portion 42 of top 16 and the downwardly extending concave portion 61 of the bottom 18 which portion 61 is defined by the

wall portions

70, 72, 74 and 76 previously described, a construction is achieved which yields great rigidity of the playing surface of the pool table, notwithstanding the considerable ilexibility of the component parts. This rigidity is not materially weakened by the provision of the apertures 94 to 104 for the pockets of the pool table nor by the provision of the aperture 90 for the central ball receiving station in the bottom of the base 12.

As previously noted, the pockets 94 to 104 register with the tracks 84 and `86. It has also previously been stated that the

tracks

84 and 86 slope toward the central ball receiving station 82. That is, the

tracks

84 and 86 slope from the rear 134 of the table to the front 920i the table so that balls dropping into, for example, the pocket will drop into the track 86 which slopes toward the central ball receiving station 82 whereby to cause the ball to roll down the track 86 and into said ball receiving station.

A suitable scoring means may be provided on the table 10. As shown in FIG. 5 the scoring means 125 are disposed at the front 92 on upwardly extending concave portion 42. Scoring means includes two rotatable discs 127 with indicia 0 to 9 on each and an index means to indicate the appropriate numerical indicia. Other scoring means rnay be employed.

Referring to FIGS. 4 and 5, in accordance with another feature of the present invention, the transverse `rigidity of the base 12 can be increased by the provision of several transversely extending grooves in a manner similar to the longitudinal grooves 62 previously described. The transverse grooves are here shown as four in number,

and are designated by the

reference numerals

136, 138, 140 and 142. It will be seen that

grooves

136 and 138 are in the nature of a closely spaced pair with an upwardly extending depression or recess 144 therebetween. Likewise, the

grooves

140 and 142 are a closely spaced pair with a recess 146 therebetween. The

recesses

144 and 146 may be employed as a means for attaching the leg pairs 20 and 22 to the bottom of the base 12. This is most conveniently effected by forming the

legs

24 and 26 as the vertically extending parts of integral U-shaped leg assembly 20 having a horizontal part 148, which horizontal part 148 lits into the groove 144 with some clearance and which is held in the groove for rotation as by two

straps

150 and 152 both of which are connected to the bottoms of

transverse grooves

136 and 138 by any suitable means such as by bent over upstruck portions, or rivets or the like. Such connecting means is designated by the reference numeral 154. Likewise, the

legs

28 and 30 are vertically extending parts of a U-shaped leg assembly 22 in which the horizontal portion is designated by the reference numeral 156 which horizontal part is received with some clearance inside of the space 146 between the two

transverse grooves

140 and 142. Suitable strap means 158 and 160 overlie the horizontal portion 156 of the U-shaped leg assembly to hold the horizontal part 156 in the recess 146 for rotation therein. The straps are connected by means 154 previously described.

It will be seen that the two leg assemblies are pivotally mounted on the base 12 of the pool table. This provides for a complete collapse of the pool table if desired. However, when the pool table is to be in useable condition with the legs in the condition shown in FIG. 1, means must be provided to releasably hold the two leg assemblies in such condition. These means are angularly extending

rods

162, 164, 166 and 168 which are pivotally connected respectively to the

legs

24, 26, 28 and 30. The free ends of each of the rods 162 to 168 are provided with transversely inturned portions 170 which are adapted to lit into apertures 172 in the vertically extending part of angle brackets 174 secured to the bottom surface of horizontal portion 60 of the bottom part 18 of base 12. As shown herein the means for securing the angle brackets 174 are rivets 176 although, clearly, other securing means could be employed. Thus, it will be seen that When it is desired to set up the pool table for use the U-shaped leg assemblies are pivoted to a right angle position relative to the base 12 in which position the

rods

162, 164, 166 and 168 are exed to permit their inwardly bent end portions 170 to come into register with the apertures 172 in the angle brackets 174 and thereupon are guided through said apertures under the urging of the resiliency of the rods themselves. With the in bent end portions so disposed in the apertures 172 the legs are held in fixed vertical position. When, however, it is desired to put the table away, as in a closet or the like, all that need be done is to flex the inturned end portions 170 of the rods 162 to 168 out of the apertures 172 of the angle brackets 174 thereby unlocking the legs and permitting the folding of the legs into substantial surface-to-surface relation with the bottom of base 12. It should be noted that in accordance with the presently preferred construction, each of the legs 24 to 30 inclusive is provided with an adjustable foot 178 which is threadedly mounted in a suitable fixture 180 pressed into the bottom of each of the legs. By providing the adjustable feet y178 good leveling can be achieved for the playing surface of the table.

Of course, if desired, the leg assembly v14 can be completely deleted without departing from the present invention. That is to say, the base 12 can be employed by itself as on a suitable support such as a kitchen table or the like.

From the foregoing description it will be seen that I have devised a novel pool table which is comprised mainly of two thin sheets of relatively flexible thermoplastic material which have been vacuum formed. When the vacuum formed sheets are joined together, they form a central planar support surface and a box-like marginal portion surrounding the support surface. The assembled structure is extremely rigid and substantially non-warping. This construction is inexpensive to fabricate and extremely light weight thereby making it readily portable or storable. In addition, I have provided a new and improved cushion for a pool table, which bumper gives substantial bounce due to its special lip construction. Further, I have provided means for stiffening my table construction by providing longitudinal ridges and transverse ridges, the latter of which also provide means for mounting folding legs thereon. All of these features are accomplished with a minimum of labor and materials in an inexpensive fashion to yield a very low cost, light weight, readily portable, readily storable pool table.

While I have shown and described the preferred form of the present invention and have suggested modifications therein, other changes and modifications may be made therein within the scope of the appended claim without departing from the spirit and scope of this invention.

What is claimed is:

1. In combination, a playing table comprising a playing surface and a raised marginal edge portion surrounding said surface, said raised marginal edge portion having a longitudinally extending recess therein, and a cushion consisting only of a base disposed in said recess and a downwardly arcuately extending cantilevered lip integral with said base and extending away from substantially the top of said base.

References Cited UNITED STATES PATENTS 951,410 3/1910 Victor 273-9 1,169,585 1/1916 Whelan 1 273-9 3,337,216 8/1967 Miller et al. 273-8 X ANTON O. OECHSLE, Primary Examiner THOMAS ZACK, Assistant Examiner