| 摘要 |
14 An adjustable reclining mechanism for a seat back of a baby stroller includes a seat back that is hinged to a stroller frame having opposed sides anda cross bar extending between the opposed sides above the seat back. A flexible web or belt extends from a medial portion of the upper edge of the seatback. Secured to the cross bar is a buckle that includes one end adapted to pivot freely about the cross bar, and an opposed tab end to facilitate manipulation of the buckle. The buckle includes a planar member having a pair of adjacent slots disposed to receive the belt extending from the seat back. The web is frictionally immobilized by the buckle when the planar member is disposed generally vertically. When the planar member is rotated to a substantially horizontal disposition, the belt is free to translate through the slots of the buckle. The weight of the seat back and the child supported thereby is transferred through the belt and the buckle to the cross bar of the stroller. The belt tension pulls the planar buckle member into a generally vertical disposition, thereby locking the belt in the buckle and holding the seat back ina reclining or upright position determined by the length of belt extending from the buckle to the seat back. To adjust the angle of reclination of the seat back, the user engages the tab of the buckle to rotate the buckle toward horizontal and free the belt to translate through the slots of the buckle. The belt end maybe pulled to shorten the length of belt extending from the buckle to the seat back and raise the seat back toward an upright position. To further recline the seat back, the user supports the seat back with one hand to permit the seat backto tilt back safely while the buckle is held in the horizontal position with theother hand.
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