Abstract: A coupling device for restraining belts, particularly for children's safety seats for motor-vehicles, which includes a body intended to be connected to at least one belt branch and a pair of tongue elements intended to be connected to respective belt branches, each tongue element including an attachment portion for connection with the respective belt branch and a stem portion arranged to be received and locked in the body and forming a catch tooth for locking the tongue element in the body. Each tongue element further comprises a metal insert wholly covered by a plastic or rubber housing or coating to protect user from burning from the coupling device which has been exposed to the sun.

Abstract: A coupling device (20) for restraining belts, particularly for children safety seats for motor-vehicles, comprises a body (21) intended to be connected to at least one belt branch and a pair of tongue elements (10) intended to be connected each to a respective belt branch. Each tongue element (10) includes an attachment portion (10b) for connection with the respective belt branch and a stem portion (10a) arranged to be received and locked in the body (21) and forming a catch tooth (10c) for locking the tongue element (10) in the body (21). Each tongue element (10) further comprises a metal insert (12) wholly covered by a plastic or rubber housing or coating. Thus, the risk of burnings in case of the coupling device being handled after the vehicle has been left in the sun for a long time is prevented.