초록 ▼

A camera crane has a spring balancing system for better maintaining the crane arm in balance as the crane arm is raised and lowered a spring link is pivotally attached to a support frame on a pivot access. Spring posts are attached to the crane arm section. Springs extend from the spring link to the

A camera crane has a spring balancing system for better maintaining the crane arm in balance as the crane arm is raised and lowered a spring link is pivotally attached to a support frame on a pivot access. Spring posts are attached to the crane arm section. Springs extend from the spring link to the spring posts. As the crane arm is raised, the springs exert a counterbalancing force. The spring balancing system can be disengaged by removing a pin extending through the spring link into the support.

대표청구항 ▼

1. A camera crane comprising:a support frame; a crane arm section pivotally mounted on the support frame at a pivot location; a spring link attached to the support frame adjacent to the pivot location; a spring post attached to the crane arm section; and at least one spring attached to the spring po

1. A camera crane comprising:a support frame; a crane arm section pivotally mounted on the support frame at a pivot location; a spring link attached to the support frame adjacent to the pivot location; a spring post attached to the crane arm section; and at least one spring attached to the spring post and to the spring link.