Patent ID: 8523199

Claim:
A headrest-adjusting mechanism adapted for use with a stroller, the stroller including a headrest-supporting tube and a backrest-supporting tube, said headrest-adjusting mechanism being adapted to be connected between the headrest-supporting tube and the backrest supporting tube in such a manner to allow for rotation of the headrest-supporting tube relative to the backrest-supporting tube from a usable position to a folded position in a predetermined direction, said headrest-adjusting mechanism comprising: a first pivot member adapted to be connected to the headrest-supporting tube and including a first pivot body, said first pivot body having an inner side surface formed with a first retaining groove, and a first position-limiting groove in spatial communication with said first retaining groove; a second pivot member pivotally connected to said first pivot member, said second pivot member being adapted to be connected to the backrest-supporting tube and including a second pivot body, said second pivot body having an inner side surface formed with a second retaining groove, and a second position-limiting groove in spatial communication with said second retaining groove; a position-limiting member disposed movably within an assembly of said first and second retaining grooves and having at least one locking portion, said position-limiting member being biased to a position wherein said locking portion of said position-limiting member is disposed within said first position-limiting groove in said first pivot member and said second position-limiting groove in said second pivot member to lock said first and second pivot members relative to each other, said locking portion of said position-limiting member as a whole being removable from said first position-limiting groove so as to induce for rotation of the headrest-supporting tube relative to the backrest-supporting tube from said usable position to said folded position; and a resilient member disposed within said second retaining groove in said second pivot member for biasing said position-limiting member away from said second pivot member, and a pushbutton operable to translate along an axis to thereby push and remove said locking portion of said position limiting member from said first position-limiting groove so as to allow for relative rotation between said first and second pivot members.