Safety barrier for loading dock lift

A safety barrier for a lift platform that moves between a bottom position and an upper position, said safety barrier comprises:

• a) a gate, defining a first plane, comprising at least one or more members, wherein the gate, when in use, opens and closes in the first plane;
• and a cam surface adapted to engage a cam assembly wherein the cam surface defines a second plane that transects the first plane;
• b) a mount that mounts to the lift platform, wherein the mount has a mounting pin that rotatably mounts the gate;
• wherein the mounting pin defines an axis and the gate rotates about the axis in a first direction in the first plane and in a second direction in the first plane, wherein the second direction is opposite the first direction;
• c) an upright post assembly having an upright post mounted to a non-movable surface, and the cam assembly that comprises a cam or roller;
• wherein when the lift platform moves to the bottom position, the cam or roller engages the cam surface and the gate rotates in the first direction about the axis in the first plane into an open position, and wherein when the lift platform moves to the upper position, the cam or roller engages the cam surface of the gate and the gate rotates about the axis in the first plane in the second direction into a closed position, as the lift platform is moved between said bottom position and said upper position.

A safety barrier for a lift platform that moves between a bottom position and an upper position, said safety barrier comprises:

• a) a gate having at least a first member and a second member extending between at least a first crossbar and a second crossbar;
• wherein the first member and the second member are essentially parallel and define a first plane;
• wherein the gate has a cam surface that defines a second plane that transects the first plane, and engages a cam or roller;
• b) a mount having an upper portion and a lower portion;
• said upper portion comprises a mounting pin and the lower portion of the mount is secured to the lift platform;
• and the mounting pin rotatably mounts the gate to the upper portion of the mount;
• wherein the mounting pin defines an axis and the gate rotates about the axis in a first direction in the first plane and in a second direction in the first plane, wherein the second direction is opposite the first direction;
• c) an upright post having an upper end and a lower end, said upper end of the upright post is configured to receive a cam assembly and said lower end of the upright post is mounted to a non-movable surface;
• d) the cam assembly having a cam pin and the cam or roller, wherein the cam assembly is attached to the upper end of the upright post;
• wherein when the lift platform moves to the bottom position, the cam or roller engages the cam surface and the gate rotates in the first direction about the axis in the first plane into an open position, and wherein when the lift platform moves to the upper position, the cam or roller engages the cam surface of the gate and the gate rotates about the axis in the first plane in the second direction into a closed position, as the lift platform is moved between said bottom position and said upper position.