| 摘要 |
<p>A trolley (1) for customer use in a retail outlet such as a supermarket comprises a frame (24) and a container (32) which is capable of limited vertical movement relatively to the frame (24). In use, a customer selects goods for sale and places them in the container (32) recording each item, for example, by means of a bar-code reader (3), which generates a total weight for the selected items. When selection is complete, the customer positions the trolley (1) in weighing apparatus (18) which has latching means (65) for retaining the trolley (1) in the weighing apparatus. A weighing device (58) is raised to take the weight of a container (32) and the goods contained in it. If the measured weight by the weighing device (58) matches that recorded by the bar-code reader (3), the customer can pay for the goods without individual checking of the selected items.</p> |
