Stepping vehicle

A vehicle comprising:

• a first substantially horizontal mounting;
• a second substantially horizontal mounting beneath the first mounting;
• pivot means by which the 1st and 2nd mountings are pivotally interconnected;
• means for rotating the mountings relative to each other about the pivot through at least about 45.degree.;
• substantially horizontal, first and second mounting extensions, each comprising front and rear portions and slidably mounted on, respectively, the first and second mountings for longitudinal motion relative to the mountings;
• means for reciprocally sliding each substantially horizontal mounting extension longitudinally relative to its associated mounting, and
• first and second sets of supports for alternately supporting the mountings above the ground and that include ground engaging members and that are connected, respectively, to the first and second mounting extensions at the ends of the extensions distant from the mountings,
• means for raising and lowering the ground engaging members of one set above or below the ground engaging members of the other set whereby each set of supports may alternately serve as a load bearing set of supports that support the mounting above the ground and the ground engaging members of which are in a load bearing contact with the ground,
• and in which a work platform is secured on the first or second mountings for substantially horizontal movement with the mountings and the pivot,
• and the means for sliding the mounting extensions comprise
• means for sliding the mounting extension connected to the load bearing supports in a first direction relative to its associated mounting and thereby moving the pivot in a second opposite, direction relative to the load bearing supports, and
• means for simultaneously sliding the other mounting extension relative to its associated mounting in the said second direction.