Patent ID: 7178260

Claim:
A measuring head comprising: a seesaw member having a contact at an end and rotatably supported by a fulcrum member as supporting point; an urging member which urges the seesaw member in one direction; a detector provided on an opposite side to the contact through the fulcrum member in between, which detects a displacement amount of the contact by detecting the displacement amount of the seesaw member; and a unit damper apparatus which absorbs an impact and a vibration conveyed from the contact to the seesaw member, wherein: the damper apparatus adds constant rotation resistance to the seesaw member; wherein the damper apparatus is comprised of: an orifice plate fixed on a measuring head proper and having an orifice formed at its center; a bellows having one closed end and the other open end, the latter connected to the orifice plate; and a connecting rod which couples the seesaw member to the closed end of the bellows.