Rotation sensor and coupling for rotation sensor

摘要

A coupling (20) includes a first coupling member (21), a second coupling member (22), and a third coupling member (23) being located in between the first coupling member (21) and the second coupling member (22). The third coupling member (23) has formed thereon a first pair of connecting elements (24) diametrically opposed to one another and defining a first axis, and further has formed thereon a second pair of connecting elements (25) diametrically opposed to one another and defining a second axis that is substantially perpendicular to the first axis. The first coupling member (21) has formed thereon a third pair of connecting elements (26) configured to conform to the first pair of connecting elements (24) of the third coupling (23) member. Formed on the second coupling member (22) is a fourth pair of connecting elements (27) configured to conform to the second pair of connecting elements (25) of the third coupling member (23).