Abstract: A securing device (1) for carts having a chain (82) with a first end secured to a screw (7) mounted on a cart, a first key secured to a second end of the chain (82), a coin receptor for releasing and retaining an introduced coin (50, 51), and additional apparatus for coupling and uncoupling the cart to and from another parked cart. When a second key (8') secured to the other parked cart is introduced into the securing device (1) to couple and securely hold the cart to the other parked cart, a coin (50, 51) from the coin receptor of the cart is released and the cart can be uncoupled from the other parked cart by introducing a next coin (50, 51) into the coin receptor thereby releasing the second key (8') while the next coin (50, 51) is retained in the coin receptor.

Abstract: A safety device for connecting orderly positioned shopping carts to each other includes a token extractor comprising a control key device which is insertably-releasable from the shopping cart and carries an insert having a token-receiving slot. An encoding ring is positioned on the upper surface of the grip of the cart. A releasing member is resiliently suspended on the cart and serves for connecting one cart to a neighboring cart when the releasing member of one cart is inserted into the encoding ring of the neighboring shopping cart. The releasing element is provided with coding markings and can be inserted into the encoding ring of the neighboring shopping cart in a plurality of various positions corresponding to the markings on the releasing element whereby the shopping carts of one supermarket can be distinguished from the shopping carts of another supermarket located at the same shopping plaza.