Abstract: In one example, a mother cart is provided that is suitable for transporting a daughter cart. The mother cart includes a base frame having a group of wheels configured to allow the mother cart to be moved. The base frame, in turn, includes a loading bay for receiving the daughter cart, and a support surface for supporting the daughter cart. Finally, the base frame includes a primary restraint mechanism for engaging and securing the daughter cart in the loading bay.

Abstract: In one example, a mother cart is provided that is suitable for transporting a daughter cart. The mother cart includes a base frame having a group of wheels configured to allow the mother cart to be moved. The base frame, in turn, includes a loading bay for receiving the daughter cart, and a support surface for supporting the daughter cart. Finally, the base frame includes a primary restraint mechanism for engaging and securing the daughter cart in the loading bay.

Abstract: In one example, a mother cart is provided that is suitable for transporting a daughter cart. The mother cart includes a lower frame, an upper frame connected to the lower frame, and the lower frame includes wheels configured to allow the mother cart to be moved. The lower frame also includes support guides configured to support the daughter cart in a raised position to provide a predetermined ground clearance, and the lower frame has two open sides so as to provide for two-way loading and unloading of the daughter cart on the mother cart.

Abstract: A latch and fail-safe mechanism suitable for use with an industrial cart, dolly, trailer or other types mobile platforms or carriers. According to an embodiment, the latch comprises a housing or enclosure, a latch mechanism, a hitch hook and a fail-safe mechanism. The housing includes a back-plate configured to attach the latch to amounting bracket or frame plate on the cart. The latch mechanism is operatively coupled to the hitch hook and configured to bias the hitch hook in a closed or engaging position. The fail-safe mechanism is operatively coupled to the hitch hook and configured to bias and maintain the hitch hook in the closed position in the event of failure of the latch mechanism.

Abstract: The invention relates to the field of material handling or logistic equipment in particular, relates to turntables, which can be used especially for automation of production line, assembly assistance, linefeeading and synchronous manufacturing. A high precision positioning powered turntable and its controlling method are disclosed herewithin, based on slewing ring bearing having an integral gear on the inner ring, and positively driven by a gear motor. A plurality of sensors and sensor flags are installed for monitoring position of the turntable top structure for controlling acceleration, deceleration and stopping. A controller, such as a programmable logic controller, is used for monitoring the position of the turntable top structure tlirough the plurality of sensors, and decides how it operates a motor drive, such as variable frequency drive, of the gearmotor for controlling the acceleration, deceleration and stopping of the turntable.