20130136440 | TRIPODHEAD - In the tripod head, the resilient force adjusting mechanism includes a rotating operation part, a cam coupled to the rotating operation part and slides with the rotation of the rotating operation part, and a cam follower coming into contact with the cam surfaces of the cam, and the cam follower is supported by a counterbalancing mechanism, and the counterbalancing mechanism is configured in such a manner that the magnitude of the resilient force to be imparted on the spring is variable in accordance with the position where the cam follower comes into contact with the cam. | 05-30-2013 |