Mounting arrangement for a position locating system

DETAILED DESCRIPTION The above-stated problems and relates problems of the prior art solved with the principles of the present mounting arrangement.
The rigid body having the exposed touch surface to which the localized force is applied has an associated member for reducing the area of the force to a predetermined point of action, the point of action being a predetermined point of support about which that support exerts no moment.
This may be accomplished in one embodiment of the present invention by forming this member as a pointed member or as a member for receiving the point of a pointed member.
The unassociated member is then associated with the force sensing device.
"Associated with," as used here and in the specification and claims, is defined to mean "either an integral part of or adapted to be joined to.
" A biasing spring holds the pointed member in registration with the receiving member, but it will be subsequently demonstrated that the calculation of the coordinates in this embodiment is independent of the spring constant of the biasing spring.
While the embodiment under discussion comprises a pointed member and a receiving member held in registration by a biasing spring, other embodiments may be employed having no biasing spring.
In a similar manner to the embodiment under discussion, these embodiments provide support to the rigid body having the exposed touch surface such that no undesirable moments are created.
An undesirable moment is a moment which a support exerts about itself.
In accordance with the principles of the present invention, the area of the force sensing device is effectively reduced to the predetermined point of action increasing the accuracy of the measurement of the location of the touch.
Any undesirable moment exerted by the mounting arrangement is eliminated.
Also, the lengths of the moment arms from the point of location of the applied force to the points of action of the applied force are definite.
Furthermore, it is desirable that the points of action be placed in the plane of the exposed touch surface