Drum hoop

Abstract

A drum hoop for a musical drum, at times referred to as a "counter hoop," which hoop includes a reinforcing channel member and a reinforcing rim. The drum counter hoop retains a drum head with an associated locking member, or ring, by fastening lugs or the like secured to the drum shell and by suitable fastening means such as threaded bolts with nut-type heads thereon, sometimes referred to as tension screws, or rods, which engage with the hoop. The lugs are internally threaded or provided with extensions for threads to engage with the bolts. The drum hoop and drum shell are, therefore, provided with means for adjusting or changing the tension of the drum head by tightening or loosening the bolts which changes the position of the hoop and the drum head locking member with respect to the drum shell. The reinforced construction permits the drum head to be provided with a very high tension without bending or breaking the drum hoop.

What is claimed is: .[.1. A counter hoop for a musical drum, said drum comprising 
     
        to said tensioning means..]. .[.2.  A counter hoop as claimed in claim 1 wherein reinforcing means are provided for said outer channel..]. .[.3. A counter hoop as claimed in claim 2 wherein a plurality of apertures are formed in the body portion of the hoop through which a plurality of threaded bolts extend to engage a like plurality of threaded members which 
     
     
        are fixed relative to the drum shell..]. 4. A counter hoop as claimed in claim .[.3.]. .Iadd.9 .Iaddend.wherein .Iadd.a .Iaddend.nut-like .[.members are.]. .Iadd.member is .Iaddend.secured to the top of .Iadd.each of .Iaddend.the bolts and .[.include.]. .Iadd.includes .Iaddend.a lower, substantially flat surface and a .Iadd.corresponding .Iaddend.substantially flat surface formed on said .Iadd.main .Iaddend.body .[.portion.]. of the hoop with which said flat .[.surfaces.]. .Iadd.surface .Iaddend.of said nut-like .[.members engage.]. .Iadd.member engages.Iaddend.. .[.5. A counter hoop as claimed in claim 3 wherein said apertures are positioned so as not to pass through 
     
     
        said reinforcing means..]. 6. A counter hoop as claimed in claim .[.2.]. .Iadd.9 .Iaddend.said outer channel reinforcing means comprises a plurality of cross connections which are case integrally therewith. .[.7. A counter hoop as claimed in claim 1 wherein a plurality of apertures are formed in the body portion of the hoop through which a plurality of threaded bolts extend to engage a like plurality of threaded members which are fixed relative to the drum shell..]. .[.8. A counter hoop as claimed in claim 1 wherein said hoop is formed with an integral reinforcing member extending outwardly therefrom in a direction generally opposite to said 
     
     
        pair of extensions..]. .Iadd.9.  A musical drum comprising a flexible and tensionable drum head including a peripheral edge,   a locking ring secured to the peripheral edge of the drum head,   a shell having at least one surface, said drum head lying in contact with said one surface and held tightly thereagainst when the drum is assembled,   adjustable head tensioning means for varying the tension of the drum head by drawing it over said one shell contact surface, comprising:   a counterhoop comprising an annular main body having first and second radially spaced annular extensions extending from said main body in the same axial direction, said first and second extensions and a first portion of said main body defining an outer channel, said second extension and a second portion of said main body defining an inner channel,   said first extension having a smooth outer surface substantially free of protuberances extending therefrom,   said second extension, together with said second main body portion and the drum shell being in substantial flat surface bearing engagement with three sides of said locking ring to prevent rotation of the same when tension is applied to said tensioning means, and   reinforcing means extending in said outer channel between said first and second extensions thereof at circumferentially spaced positions about said hoop, a plurality of holes formed in said first body portion of the hoop through which a plurality of threaded bolts extend to engage a like plurality of threaded members which are fixed relative to the shell, said reinforcing means being circumferentially spaced one from the other so that holes equally spaced one from the other about said hoop and numbering eight, ten or twelve may be provided without interfering with said   
     
     
        reinforcing means. .Iaddend. .Iadd.10.  A counter hoop as claimed in claim 
     
     
        9 wherein the number of apertures is eight. .Iaddend. .Iadd.11.  A counter hoop as claimed in claim 9 wherein the number of apertures is ten. .Iaddend. .Iadd.12. A counter hoop as claimed in claim 9 wherein the number of apertures is twelve. .Iaddend.