US2549197A

US2549197A - Striking bag bladder

Info

Publication number: US2549197A
Application number: US751077A
Authority: US
Inventors: John P Hayes
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-05-28
Filing date: 1947-05-28
Publication date: 1951-04-17
Anticipated expiration: 1968-04-17

Description

April 17, 1951 P, HAYE 2,549,197

STRIKING BAG BLADDER Filed May 28, 1947 Patented Apr. 17, 1951 UNITED STATES PATENT OFFICE STRIKING BAG BLADDER John P. Hayes, Los Angeles, Calif.

Application May 28, 1947, Serial No. 751,077

1 Claim.

My invention relates generally to play and exercise balls, and more particularly to the leather covered tether balls having an inflatable inner member generally termed a bladder.

Most of the covered tether balls now on the market have a leather strap or extension to which the suspension cord is fastened, with the ends of said strap loop secured by stitching to the lining between the leather cover and bladder, or to a leather disc beneath said lining, with the leather cover having a laced slit which enables the disc to be inserted between the cover and bladder and then laced in.

These constructions have certain disadvantages, viz, the tendency of the strap to pull from its fastenings due to strain developed when the ball is struck, also the breaking Of the lacing which permits the disc to be pulled out.

It is the principal object of my invention to provide simple, strong and efficient means for connecting the suspension cord to the ball, so as to withstand heavy strains tending to break or separate such connection, and which connections means is constructed so as to enable the bladder to be readily placed inside and removed from its cover.

My invention also contemplates the use of an all rubber ball or bladder disposed within and secured by cement or vulcanization to a snug fitting cover of rubber, as well as to a cover of leather, or the like.

My present invention includes an inflatable ball or bladder similar to that shown in U. S. Patent #2,184,453 issued to me December 26, 1939, and further, is an improvement on the Play and Exercising Ball disclosed in my co-pending application for U. S. Letters Patent filed April 15, 1947, Ser. No. 741,565, now abandoned.

With the foregoing and othe objects in view, my invention consists in certain novel features of construction and arrangement of parts which will be hereinafter more fully described and claimed and illustrated in the accompanying drawing, in which:

Fig. 1 is a side elevational view of my improved play and exercising ball.

Fig. 2 is a plan view of the ball with parts broken away.

Fig. 3 is an enlarged vertical section taken on the line 3--3 of Fig. 1.

Figs. 4 and 5 are sectional views similar to Fig. 3 and showing modified constructions of the ball.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment of my invention, l 0 designates an inflatable rubber ball or bladder, from the top of which projects upward a short cylindrical wall ll.

Formed integral with the ball within said wall is a stud I? in which is embedded a coil l3 of wire terminating at an eye I4 above said stud, which eye provides a point offattachment for the ball suspension member l5, preferably .cord orthong.

The construction just described is practically identical with that disclosed in my aforesaid pending application Ser. No. 741,565, now abandoned.

Ball Ill is provided with a snug fitting cover 16, preferably leather and having a lining Ill, of soft flexible material such as fabric or felt.

Formed in cover I B and its lining is an aperture !8, through which wall ll, projects with a snug fit and disposed against the underside of the lining around said aperture, is a reinforcing washer-like member I 9 of strong, flexible material such as fabricated rubber or rubberized fabric.

This member I9 is secured to cover It and its lining H by a row or rows of stitching 20, disposed adjacent and parallel with the edge of aperture l8 and to further secure said member 19, its upper surface is coated with rubber cement of the self vulcanizing type.

Before bladder 10 is inserted through opening I8, the underface of reinforcing ring I9, and/or the surface of said bladder, adjacent wall II, is coated with self vulcanizing cement, and thus, when said bladder is inflated, strong cemented joints of considerable area will be produced between both faces of ring l9, and the contacting faces of the cover and bladder.

Thus a circular zone of greatly increased strength is provided between the anchorage for the suspension member 15, and the ball comprising parts l0, l6 and I1 and which improved structure minimizes tendency of the ball to break away from its suspension member, eliminates repairs and materially prolongs the life or period of service of the ball.

In Fig. 4, I have shown an inflatable ball or bladder 2| of rubber, to the top of which is cemented or vulcanized a concave-convex disc 22 of rubber, and the upper face of the latter, outside a centrally arranged upstanding circular wall 23 which incloses a stud 24 and eye 25, is cemented or vulcanized to the underface of a covering member 26, preferably rubber.

Thus that portion of the completed ball is greatly reinforced and strengthened below and surrounding the point of anchorage for the ball suspension member.

In Fig. 5, an upstanding circular wall 2! surrounding a stud 28 and eye 29, formed integral with the top of an inflatable ball or bladder 30 and a reinforcing ring 3! of rubberized fabric or the like, is cemented or vulcanized to the underface of a covering ball 32 of rubber, adjacent the aperture 33 for wall 21 and the underlying outer surface of bladder 30.

A source of considerable trouble with single walled tether balls, is the rapid development of checks and cracks under severe strains, for when the check or crack passes completely through the wall, the ball collapses, thus putting it out It will be understood that minor changes in the size, form and construction of the various parts of my improved play and exercising ball maybe madeiand substituted for those herein 4 shown and described without departing from the spirit of the invention, the scope of which is set forth in the appended claim.

I claim as my invention:

In a play or exercise ball, an inflatable bladder, an integral lug on top of said bladder, a suspension cord attaching member having its lower portion embedded in said lug and its upper portion projecting above said lug and a hand and knuckle protective wall integral with and projecting upwardly from the top of said bladder around said lug and said attaching member.

JOHN P. HAYES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 580,157 Frazier Apr. 6, 1897 600,777 Frazier Mar. 15, 1898 663,690 Whitely et al Dec. 11, 1900 788,245 Burtt Apr. 25, 1905 1,513,523 Rothhirsch Oct. 28, 1924 1,690,162 Fitzpatrick Nov. 6, 1928 2,186,016 Evans Jan. 9, 1940 2,186,403 Bullis et al Jan. 9, 1940 2,435,864 Adams Feb. 10, 1948