Acceleration detecting device

摘要

An acceleration detecting device is provided with a mass body (1) having a through hole (1a) and a sliding shaft (2) passing through the through hole (1a) and sliding the mass body (1) and is constituted such that the slicing shaft (2) comes in contact with the through hole (1a) at two points (3a) and (3b) to support the mass body (1). When the through hole (1a) is circular in cross section, the cross section of the sliding shaft (2) is formed in the shape of an ellipse elongated in the lateral direction or in the shape of an oblong circle elongated in the lateral direction.