Heiwa Seiki Kogyo Co., Ltd.

Nobuyuki Hida

A joint portion for angle adjustment arranged between a leg base portion and a leg support member of an imaging equipment-grade tripod includes a joint fixation member with a joint, a pole member having an upper end connected by the joint of the joint fixation member a lower end connected to the leg base portion, a sleeve provided below the joint fixation member and fitting to the joint fixation member, and a coil spring wound around a central axis of the pole member and pressing the sleeve upward. With the joint portion being fixed by fitting between the joint fixation member and the sleeve, the sleeve is pressed downward to release the fitting between the joint fixation member and the sleeve, so that the joint portion is released.

Joint fixation mechanism for leg support member

An attachment portion of a tripod is formed with an opening that penetrates in a longitudinal direction of the tripod, the rail member of the shooting sliding device is provided with an adapter for attachment to the tripod, a first contact surface between the adapter and the rail member is a flat surface, a second contact surface between the adapter and the tripod has a curved surface, an attaching female screw is embedded at the center of the attachment side of the tripod in the second contact surface, the tightening handle has a grip, and a male screw projecting from one end of the grip, the adapter is placed on the attachment portion of the tripod, the male screw of the tightening handle is screwed into the female screw embedded in the adapter through the opening of the attachment portion of the tripod, the curved surface of the second contact surface of the adapter and the curved surface on the inner side of the attachment portion of the tripod come into surface-contact with each other and come into contact with each other under pressure, and the shooting sliding device is attached and fixed to the tripod.

Tripod apparatus

A tripod head comprising a resilient force adjusting mechanism which includes a rotating operation part, a cam which is coupled to the rotating operation part and slides with the rotation of the rotating operation part, and a cam follower coming into contact with cam surfaces of the cam, wherein the cam follower is supported by a counterbalancing mechanism, and the counterbalancing mechanism is configured in such a manner that the magnitude of a resilient force to be imparted on the spring is variable in accordance with a position where the cam follower comes into contact with the cam.

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Saitama, Japan

Nobuyuki Hida