Patent ID: 9200969
Filing Date: 2015-12-01
Classification: G01L

Abstract:
1. A force sensor comprising: a planar pedestal member having an axis perpendicular to a plane of said planar pedestal member; an action member arranged so as to face said pedestal member, said action member configured to be displaced relative to said pedestal member by an exerted external force; a displacement detecting unit configured to detect a displacement of said action member relative to said pedestal member; a rigid member arranged so as to face said pedestal member; at least three columnar elastic members arranged at intervals about the axis and extending in a direction perpendicular to said pedestal member, said at least three columnar elastic members connecting said pedestal member and said rigid member; and elastic units arranged around the axis at intervals and connecting said action member and said rigid member, wherein each of said elastic units includes a pair of beam-shaped elastic members extending in a direction parallel to the plane of said pedestal member, and each of the pairs of beam-shaped elastic members com rises two leaf springs.