Patent ID: 8177303

Claim:
A seatbelt adjusting device for a safety seat having a backrest and a seatbelt connected to the backrest, said seatbelt adjusting device comprising: a guiding track adapted to be secured to the backrest, extending in a first direction, having first and second ends opposite to each other in the first direction, and provided with a plurality of first engaging members that are arranged along the first direction; a belt-connecting slider mounted on said guiding track, adapted to be connected to the seatbelt, and being slidable on said guiding track in the first direction for adjusting the seatbelt; an actuator provided with a second engaging member and mounted movably on said belt-connecting slider so as to be co-slidable with said belt-connecting slider on said guiding track to align said second engaging member with one of said first engaging members, said actuator being operable to move relative to said belt-connecting slider between an engaging position, in which said second engaging member engages with one of said first engaging members, thereby preventing sliding movement of said belt-connecting slider on said guiding track, and a disengaging position, in which said second engaging member is disengaged from said first engaging members, thereby permitting sliding movement of said belt-connecting slider on said guiding track; an urging member biasing said actuator toward said engaging position; wherein the first engaging members are a plurality of first teeth, and the second engaging member is a second tooth; wherein said guiding track includes a pair of parallel rails that are opposite to each other in a second direction transverse to the first direction, at least one of said rails being formed with said first teeth projecting therefrom and aligned with each other, said belt-connecting slider being mounted slidably on said rails, when said actuator is disposed at said engaging position, said second tooth is disposed in one of said engaging grooves in said at least one of said rails; wherein said rails cooperatively define a trough therebetween, said belt-connecting slider includes a central part that is received in said trough, and a pair of wings opposite to each other in the second direction and projecting outwardly from said central part; and wherein each of said wings defines a guiding groove extending in the first direction for respective said rails extending therethrough so as to permit sliding movement of said belt-connecting slider on said rails.