Trundles and Pin-Wheels.If a wheel or trundle have cylindrical pins or staves for teeth, the faces of the teeth of a wheel suitable for driving it are described by first tracing external epicycloids, by rolling the pitch-circle of the pin-wheel or trundle on the pitch-circle of the driving-wheel, with the centre of a stave for a tracing-point, and then drawing curves parallel to, and within the epicycloids, at a distance from them equal to the radius of a stave.
A trundle bunk bed actually looks like a typical double bunk bed with a full-length drawer underneath the floor height bunk bed.
trundle round while we watch and relax.
Often disguised as drawers, the trundle bed slides easily out from under the daybed and back in again, saving a lot of space while providing extra sleeping space for guests or children.
Therefore, the actual size of the complete trundle bed is similar to a regular mattress and box spring bed set.