Rear Support Leg

General

The support legs are welded to the bottom plate and make an integrated part of the AGV structure.

Rear wheel

The rear wheels are mounted in the support legs and are covered.

Guide Antennas

In an AGV used for inductive wire guided systems is a rear guide antenna located behind the rear wheel. A front leg antenna is located in front of the support leg. The rear leg antenna is used for guiding in reverse travel, and the front leg antenna for guiding in forward travel. Some AGVs may have guide antennas in both support legs to simplify the floor installation.

Rear Bumper

At the rear end of each support leg is a rear bumper located. The rear bumper is a spring mounted plastic plate. The plate is made in durable plastic and activates sensors when obstructed by an object.

The rear bumper may also carry additional sensors, such as miniature photocells used for load detection.

Additional Photocells

The picture to the right is from the left support leg of an FLA AGV. This AGV includes both a deepstack and an edge detecting photocell.

Edge Detecting Photocell

This photocell is a pair of transmitter and receiver mounted to give a beam across the rear end of the AGV. It is used both during pick and drop to detect the edge of a load.

Deepstack Photocell

This is a proximity sensing photocell which detects the load at 0.3 - 1 meter in rear of the AGV. It is used during deepstack drop when the AGV reverses to find the load on the floor. It can also be used to reduce the reverse speed when approaching a load on the floor.