Swing having seat units with tiltable backrests

摘要

A swing includes two seat units swingably connected to an upright support frame through suspending members. Each seat unit includes a seat frame disposed between inner and outer side frames, and a backrest frame pivoted to the seat frame. Inner and outer engaging plates are fixed respectively to the inner and outer side frames, and are each formed with a plurality of intercommunicated engaging grooves. Inner and outer operating arms are respectively disposed adjacent to the engaging plates. Each of the operating arms has a rear arm section pivoted to the backrest frame and a front arm section formed with an engaging tongue that engages a selected one of the engaging grooves in the respective engaging plate.