B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
B24D 11/02 - Backings, e.g. foils, webs, mesh fabrics
B24D 13/02 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery
B24D 13/14 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face
B24D 13/12 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
B24D 15/04 - Hand tools or other devices for non-rotary grinding, polishing, or stropping resilientHand tools or other devices for non-rotary grinding, polishing, or stropping with resiliently-mounted operative surface
The invention relates to a portable sports device and particularly a training device for muscle building, with at least one handle and a centrifugal mass operatively connected thereto and mounted on a shaft, which is rotatable by pulling a pull rope fixed to and wound up on the shaft, and with at least one removable additional mass element arrangeable on the centrifugal mass, the at least one additional mass element being configured in the form of a circular ring piece or a circular segment piece.
A63B 21/045 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters having torsion element
A63B 21/00 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
A63B 23/035 - Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
A63B 21/075 - Dumb-bells, bar-bells or the like with variable weights
A63B 71/00 - Games or sports accessories not covered in groups
A63B 21/068 - User-manipulated weights using user's body weight
A63B 21/16 - Supports for anchoring force-resisters
A tool has disks or ring disks arranged for metal-cutting, which are stacked on top of each other in an overlapping fashion and engage into each other at their incisions which reach from the outer circumference up to the center point of the disks or the inner circumference of the ring disks. The incisions of the directly adjacent disks or ring disks are respectively angularly offset by 360°/n, with n being the number of the disks or ring disks. A production method is also provided for such a tool, in which the disks or ring disks are incised up to the center point or inner circumference, are completely slid into each other at the incisions, folded towards one another and displaced until an angular offset of the incisions of 360°/n is produced.
The invention relates to a tool with disks or ring disks arranged for metal- cutting, which are stacked on top of each other in an overlapping fashion and engage into each other at their incisions which reach from the outer circumference up to the center point of the disks or the inner circumference of the ring disks. The incisions of the directly adjacent disks or ring disks are respectively angularly offset by 360°/.eta., with n being the number of the disks or ring disks. The invention further relates to a production method for such a tool, in which the disks or ring disks are incised up to the center point or inner circumference, are completely slid into each other at the incisions, folded towards one another and displaced until an angular offset of the incisions of 360°/.eta. is produced.
B26D 1/14 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
6.
GRINDING OR POLISHING DISC HAVING A THREADED INSERT
The grinding or polishing disc according to the invention has a through- opening in which a threaded insert is inserted via a press fit. The threaded insert has an inner thread as a through--thread for receiving the spindle of a drive motor. The joined threaded insert eliminates the need for a clamping nut or for the production of an inner thread in the carrier disc of the grinding or polishing disc.
patents
