Abstract: A power rail is mounted on the face of storage system support columns. The power from the rail is transmitted to the equipment using a right angle, low clearance power rail trolley. The towing device is mounted to the side of the moving equipment. The device incorporates a new low profile trolley and towing arm attachment to permit mounting inches from the floor surface. The towing device includes a pair of pin engagement guide fingers that provide tolerance for traveling misalignments between the moving equipment and the stationary power rail. When an obstruction is encountered, power to drive the traveling stacker-retriever is cut off. The trolley engagement unit is mounted on a lateral swivel arm, the towing arm. The swivel arm mount has a mechanical overload spring pin detent. If a mechanical overload is detected, the swivel arm disengages from the spring pin detent, causing a limit switch to signal an emergency stop condition to disconnect motive power and to stop the moving equipment.

Abstract: An automated storage facility includes a storage and retrieval system and a floor inventory management system. The storage and retrieval system uniquely palletizes bossies and stores palletized bossies and palletized stacks of cases together in the same storage and retrieval system. The system provides order picking of stacked cases for movement out of the storage retrieval system into an accumulator, and retrieving bossie carts from the storage and retrieval system while concurrently receiving and storing new pallets of stacked cases and new pallets with loaded bossies. It provides acceptance of loaded bossie cart-bearing pallets and discharging of loaded bossie cart pallets at one level while storing the pallets with the bossie carts throughout the storage system. Pallets with stacks of cases are delivered to order pick lanes for picking stacks from the pallets, while case stacks on conveyors are accumulated on pallets and accepted for storage on another level.