Collapsible shade for head chair

In a foldable headrest of the type having a first opened and second folded position including a first molded integral one-piece rectangular frame having upper and lower parallel ends and connecting parallel side legs, a second molded integral one-piece rectangular frame having upper and lower parallel ends and connecting parallel side legs, said second rectangular frame being rotatably coupled to the first rectangular frame, a first fabric panel having two ends, one end being connected to said first frame upper end and the other end connected to said second frame upper end, a second fabric panel having two ends, one end being connected to said first frame lower end and the other end connected to said second frame lower end, and said panels being of a length so that when said frames are in said opened positions, said panels will be substantially taut;

• the improvement comprising
• a collapsible sunshade adapted to be secured to the headrest including:
• a first and a second support arm rotatably coupled at their lower ends for swinging about a first axis, said first and second support arm being movable between a first position in which the first and second support arms are generally parallel to each other and a second position in which the first and second arm form an acute angle with respect to each other;
• a first and second rib rotatably coupled to respective outer ends of the first and second support arm;
• a flexible panel disposed between the first and second ribs;
• means coupled to the first and second support arms for parallely extending the ribs from a position in which the first and second ribs lie generally parallel to the first and second support arms to a position in which the ribs are in a transverse relationship to the support arms as the support arms are moved from the first position to the second position;
• and
• means for securing the collapsible sunshade to the foldable headrest.

In a foldable headrest of the type having a first opened and second folded position including a first molded integral one-piece rectangular frame having upper and lower parallel ends and connecting parallel side legs, a second molded integral one-piece rectangular frame having upper and lower parallel ends and connecting parallel side legs, said second rectangular frame being rotatably coupled to the first rectangular frame, a first fabric panel having two ends, one end being connected to said first frame upper end and the other end connected to said second frame upper end, a second fabric panel having two ends, one end being connected to said first frame lower end and the other end connected to said second frame lower end, and said panels being of a length so that when said frames are in said opened positions, said panels will be substantially taut;

• the improvement comprising
• a collapsible sunshade adapted to be secured to the headrest including:
• a first and a second support arm rotatably coupled at their lower ends for swinging about a first axis;
• a first and second rib rotatably coupled to respective outer ends of the first and second support arm;
• a flexible panel disposed between the first and second ribs;
• means for parallely extending the ribs in a transverse relationship to the support arms that includes
• a) at least one lever arm coupled to the first support arm and extending radially from the first axis;
• and
• b) a pushrod having a first end coupled to the lever arm and a second end coupled to the rib that is disposed at the end of the second support arm;
• and
• means for securing the collapsible sunshade to the foldable headrest.

A collapsible sunshade comprising:

• securing means for connecting the sunshade to an object;
• a trunion rotatably connected to the securing means, the trunion including an outwardly extending post and a key disposed at an end of the post, the key having a first end with a first shape and a second end with a second shape different from the first shape;
• a pair of support arms having a flexible shade secured thereto, each support arm having a keyway, the keyway being adapted to cooperate with the key disposed at the end of the post;
• and
• one or more spring washers disposed over the post;
• wherein the support arms are secured to the trunion by passing the key through the keyways and rotating the key with respect to the keyways.