Securing device for carts

A securing device (11) 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 said chain (82),
• coin receiving means for releasing and retaining an introduced coin (50, 51),
• means engaged to said coin receiving means for coupling and uncoupling said cart to and from another parked cart,
• wherein a second key (8') secured to said other parked cart is introduced into said securing device (1) to couple and securely hold said cart to said other parked cart,
• wherein introducing said second key (8') further releases a coin (50, 51) retained in said coin receiving means of said cart and
• wherein said cart can be uncoupled from said other parked cart by introducing a next coin (50, 51) into said coin receiving means thereby releasing said second key (8') while said next coin (50, 51) is retained in said coin receiving means,
• said means engaged to said coin receiving means for coupling and uncoupling comprising:
• a pivotable locking part (2) for lockingly engaging said second key (8'),
• a spring returned part (3) biased toward said coin receiving means for maintaining said locking part (2) in engagement with said second key (8') and releasing said next coin,
• wherein introduction of said second key (8') causes said second key to engage and pivotably urge said locking part (2) into locking engagement with said second key (8') and permits said spring returned part (3) to move toward said coin receiving means, releasing said next coin and engaging said locking part (2) to maintain said locking part (2) in locking engagement with said second key (8').