Child safety seat

摘要

A child safety seat is provided with a backrest including two parallel recesses on a back; a headrest including a sliding plate in the recesses; a cover plate secured to the headrest; an adjustment handle slidably secured to the headrest and including opposite first and second wedges; a belt member fastened between the backrest and the cover plate; spring biased first and second retaining members fastened between the first and second wedges; a first adjustment member pivotably secured to the first retaining member and including first teeth, and a first lever proximate the first wedge; a second adjustment member pivotably secured to the second retaining member and including second teeth, and a second lever proximate the second wedge. The belt member passes between the first teeth and the first retaining member, and between the second teeth and the second retaining member.

主权项

1. A child safety seat comprising:
a backrest (3) including two parallel recesses (30) longitudinally disposed on a back; a headrest (1) including a downward extending sliding plate (10) slidably disposed in the recesses (30); a cover plate (8) secured to the headrest (1); an adjustment handle (5) slidably secured to the headrest (1) and including a first wedge (50) and an opposite second wedge (52) both on a lower portion; a belt member (7) having a bottom end secured to the backrest (3) and a top end secured to the cover plate (8); first and second retaining members (9, 11) disposed proximate a lower edge of the cover plate (8) and fastened by and between the first and second wedges (50, 52); a first adjustment member (13) pivotably secured to the first retaining member (9) and including a plurality of first teeth (130) inclined in a first direction, and a first lever (132) proximate the first wedge (50); a second adjustment member (15) pivotably secured to the second retaining member (11) and including a plurality of second teeth (150) inclined in a second direction opposite to the first direction, and a second lever (152) proximate the second wedge (52); a first torsion spring (17) pivotably secured to the first retaining member (9); and a second torsion spring (19) pivotably secured to the second retaining member (11); wherein the belt member (7) passes between the first teeth (130) and a base (90) of the first retaining member (9), and between the second teeth (150) and a base (110) of the second retaining member (11).