WORK PLATFORM WITH EXTENSION DECK AND WORK STEP
A self-propelled aerial work platform apparatus includes a chassis and elevating work platform with operator controls thereon. The work platform includes a main deck, an extension deck and a storable work step at one end of the extension deck to allow a worker to access utilities through openings in drop ceilings. The step and attached legs are moveable together from a horizontal work position of the step to a vertically extending storage position with step and legs alongside the step close to guardrails at the end of the extension deck.
1 . A work platform for use in aerial work platform apparatus, said work platform comprising a main deck, an extension deck supported on said main deck, said extension deck having a floor, guardrails and a work step, said step being moveable from a work position in which it is horizontally oriented above said floor to a storage position when not in use.
2 . The work platform of claim 1 , including at least one hinge connecting said step to support structure on said extension deck.
3 . The work platform of claim 2 , further including at least one step support leg and a hinge connecting said step to said support leg.
4 . The work platform of claim 3 , including two of said support legs and hinges, said hinges connecting said support legs to spaced sides of said step thereby permitting said legs to pivot alongside said step from a step support position into a vertically extending storage position of said step and legs.
5 . The work platform of claim 4 , wherein said floor of said extension deck includes retainers for securing ends of said legs when said step is in said work position.
6 . The work platform of claim 5 , wherein said guardrails on said extension deck include upper sections moveable from lowered storage positions to elevated safe height positions.
7 . The work platform of claim 6 , wherein said upper guardrail sections include legs telescopically received in legs of lower guardrail sections.
8 . An aerial work platform apparatus comprising:
a) a self-propelled chassis;
b) a work platform operably supported by said chassis for elevation to a work position;
c) a lift mechanism on said chassis operably connected to said work platform for elevating said platform to a work elevation;
d) controls on said work platform accessible to an operator on said platform for moving the apparatus and for elevating and lowering said work platform; and
e) said work platform including a main deck, an extension deck supported on said main deck, said extension deck having a floor, guardrails and a and a work step, said step being pivotally moveable from a horizontally oriented work position to a vertically oriented storage position.
9 . The apparatus of claim 8 , including at least one hinge connecting said step to a horizontally extending cross brace at one end of said extension deck.
10 . The apparatus of claim 9 , further including at least one step support leg and a hinge connecting said step to said support leg.
11 . The apparatus of claim 10 , including two of said support legs and hinges connecting said support legs to spaced sides of said step thereby permitting said legs to pivot alongside said step from a step support position into a vertically extending storage position of said step and legs.
12 . The apparatus of claim 11 , wherein said floor of said extension deck includes retainers for securing ends of said support legs in position when said step is in said work position.
13 . The apparatus of claim 12 , wherein said retainers comprise apertures for receiving portions of said support legs when said step is in said work position.
14 . The apparatus of claim 13 , wherein said guardrails on said extension deck include upper sections moveable from lowered storage positions to elevated safe height positions.
15 . The apparatus of claim 14 , wherein said upper guardrail sections include legs telescopically received in vertically extending legs of lower guardrail sections.
16 . The apparatus of claim 15 , wherein said lift mechanism is a scissors mechanism.