초록 ▼

A camera crane includes an arm having a back section, a middle section telescopically extendible into and out of the back section, and a front section telescopically extendible into and out of the middle section. A camera platform is pivotally attached at or near the front end of the front section.

A camera crane includes an arm having a back section, a middle section telescopically extendible into and out of the back section, and a front section telescopically extendible into and out of the middle section. A camera platform is pivotally attached at or near the front end of the front section. A counterweight is movable along the back section. An arm support can support the back section at two or more positions. Consequently the pivot axis of the arm can be shifted to the front or rear, to change rear clearance requirements, counterweight requirements, and the reach of the arm. An electronic controller is linked to a motor and a sensor on a camera head, with the motor acting to keep the head level.

대표청구항 ▼

The invention claimed is: 1. A camera crane comprising:an arm having a first section, a second section telescopically extendible into and out of the first section, and a third section telescopically extendible into and out of the second section;a camera platform at a front end of the third section;a

The invention claimed is: 1. A camera crane comprising:an arm having a first section, a second section telescopically extendible into and out of the first section, and a third section telescopically extendible into and out of the second section;a camera platform at a front end of the third section;a counterweight movable along the first section;the first section having a longitudinal axis and first side and a second side, with first and second attachment elements, on each of the first and second sides, spaced apart from each other along the longitudinal axis of the first section,an arm support, and a pivot joint for attaching the first section of the arm to the arm support at a first position using the first attachment elements, and with the first section attachable to the arm support at a second position using the second attachment elements, to allow the arm to shift position in a longitudinal direction relative to the arm support.