Abstract: A system for a two-shelf, single-assembly tray that is mountable to a circular steering wheel with an inner diameter portion above a vehicle's floorboard at an angle, wherein the angle between the vehicle's floorboard and a plane formed by a circle of the steering wheel is less than 60°, the system comprising a structure having a first side, a second side, and an outer periphery. The structure of this tray further comprises two folds defining three main facets and is constrained within the steering wheel by a plurality of constraining elements. The first constraining element is a type of simple support by the steering wheel on one side of a tongue. The second constraining element is an adjustable strap wrapped around the steering wheel, where the strap incorporates a strip of rigid backing board with a length that is 40-80% of the length of the strap.

Abstract: A system for a two-shelf, single-assembly tray that is mountable to a circular steering wheel with an inner diameter portion above a vehicle's floorboard at an angle, wherein the angle between the vehicle's floorboard and a plane formed by a circle of the steering wheel is less than 60°, the system comprising a structure having a first side, a second side, and an outer periphery. The structure of this tray further comprises two folds defining three main facets and is constrained within the steering wheel by a plurality of constraining elements. The first constraining element is a type of simple support by the steering wheel on one side of a tongue. The second constraining element is an adjustable strap wrapped around the steering wheel, where the strap incorporates a strip of rigid backing board with a length that is 40-80% of the length of the strap.

Abstract: A tray assembly adapted for mounting on the top portion of a steering wheel comprising a foldable, backboard having one or more rigid panels wherein the sole or top-most panel of said backboard incorporates a steering wheel attachment, one or more rigid shelf panels, said steering wheel attachment is made of an elastic material connected to the top portion said backboard to form a securement pouch that slides on or over and fully conforms to the shape of said steering wheel. An alternative tray assembly embodiment comprising three rigid panels wherein an upper level panel closest to the 12 o'clock position of the steering wheel is connected at its lower edge to the top edge of a substantially vertical panel, said vertical panel connected at its lower edge to the top edge of a lower level panel closest to the 6 o'clock position of said steering wheel.

Abstract: A tray assembly adapted for mounting on the top portion of a steering wheel comprising a foldable, backboard having one or more rigid panels wherein the sole or top-most panel of said backboard incorporates a steering wheel attachment, one or more rigid shelf panels, said steering wheel attachment is made of an elastic material connected to the top portion said backboard to form a securement pouch that slides on or over and fully conforms to the shape of said steering wheel. An alternative tray assembly embodiment comprising three rigid panels wherein an upper level panel closest to the 12 o'clock position of the steering wheel is connected at its lower edge to the top edge of a substantially vertical panel, said vertical panel connected at its lower edge to the top edge of a lower level panel closest to the 6 o'clock position of said steering wheel.

Abstract: A tray assembly adapted for mounting on the top portion of a steering wheel comprising a foldable, backboard having one or more rigid panels wherein the sole or top-most panel of said backboard incorporates a steering wheel attachment, one or more rigid shelf panels, said steering wheel attachment is made of an elastic material connected to the top portion said backboard to form a securement pouch that slides on or over and fully conforms to the shape of said steering wheel. An alternative tray assembly embodiment comprising three rigid panels wherein an upper level panel closest to the 12 o'clock position of the steering wheel is connected at its lower edge to the top edge of a substantially vertical panel, said vertical panel connected at its lower edge to the top edge of a lower level panel closest to the 6 o'clock position of said steering wheel.