| 摘要 |
A shopping cart with a signalling device for indicating the presence of a load on the lower tray. The signalling device includes an elongated rigid member connected between the lower tray and the shopping cart basket, a second member secured to the basket with a portion slideably connected with the upper end of the rigid member. Either the rigid member or the second member includes a signal portion which when exposed, indicates the presence of a load on the lower tray. The signalling device also includes means for maintaining the lower tray in an upper position in the absence of a load and for permitting movement to a lower position when a load is placed on the lower tray.
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