Abstract: A chair arm-mounted tray apparatus for mounting on arms of a chair for supporting an item includes an item support deck for supporting an item; and a deck support frame fastened to the support deck, the deck support frame including a chair arm engaging structure for removably securing the apparatus to chair arms, and including laterally spaced apart frame arms removably secured to chair arms by the chair arm engaging structure; the chair arm engaging structure including first and second arm straddles, each of the first and second arm straddles including a substantially U-shaped member including two spaced-apart arm straddle tines defining a set of tines for fitting around one of the chair arms, including a clutch pivot joint at which the given arm straddle connects to the corresponding frame arm.

Abstract: A chair arm-mounted tray apparatus for mounting on arms of a chair for supporting an item includes an item support deck for supporting an item; and a deck support frame fastened to the support deck, the deck support frame including a chair arm engaging structure for removably securing the apparatus to chair arms, and including laterally spaced apart frame arms removably secured to chair arms by the chair arm engaging structure; the chair arm engaging structure including first and second arm straddles, each of the first and second arm straddles including a substantially U-shaped member including two spaced-apart arm straddle tines defining a set of tines for fitting around one of the chair arms, including a clutch pivot joint at which the given arm straddle connects to the corresponding frame arm.

Abstract: A chair arm-mounted tray apparatus for mounting on chair arms of a chair having a chair seat, for supporting an item includes an item support deck for supporting an item; and a deck support frame fastened to the support deck, the deck support frame having a chair arm engaging mechanism for removably securing the apparatus to the arms of a chair; so that the deck support frame positions the deck forwardly of the chair at an adjustable height and at an adjustable orientation relative to horizontal. The deck support frame preferably includes two parallel and laterally spaced apart telescoping frame arms removably secured to the chair arms by the chair arm engaging mechanism, the frame arms each having a frame arm forward end adjacent to the deck and a frame arm rearward end adjacent to the chair.