Patent ID: 8187106

Claim:
A coupling device for transmitting a torque from a first shaft to a second shaft, the coupling device comprising: the first shaft with a first end section having radially opposite, radially extending outward projections; the second shaft with a second end section having radially opposite, radially inward recesses, wherein the first shaft is axially opposite the second shaft; and a coupling member having coupling projections and/or recesses, wherein the projections and/or recesses of the first and second end sections are respectively configured to engage with at least one of the coupling projections and/or recesses, wherein the coupling projections and/or recesses corresponding: to the first end section are arranged at a displacement of about 90° relative to the coupling projections and/or recesses corresponding to the second end section and the coupling member at least partially surrounds the first and second end sections, and wherein the first and second end sections are disposed axially directly opposite to each other, and the coupling member is positionally fixed by the first and second end sections; and wherein a first side of the coupling member facing the first shaft is positionally fixed by the projections of the first end section, and a second side of the coupling member facing the second shaft is at least partially positionally fixed by abutting the second end section.