Mobile observation platform assembly
AssigneeMary Ann Lopacki
InventorEdwin Francis Lopacki
Life of this patent
Estimating the term…
Abstract
A mobile observation stand assembly includes a platform that may be in a lowered position for transport and an elevated position for use in a desired location. The assembly includes a base supported by a wheel and axle assembly, with an articulated anterior frame and an articulated posterior frame attached to the base. The posterior and anterior frames each include a basal frame and a principal frame that are jointed by a rollover lock joint that allows for pivotal movement. A leveraging cam is attached to the posterior frame, with the cam supporting the anterior frame during repositioning of the assembly.
Claims18
An articulated observation platform assembly positionable between an extended position and a retracted position, said assembly comprising:
- a base having a proximal side and a distal side;
- a collapsible anterior frame attached to said proximal side of said base, said interior frame including
- a basal frontal frame member comprising two support rods joined by a first connecting brace, each support rod having a subjacent end and a superjacent end, wherein said subjacent end of each said support rod is pivotally connected to said proximal side of said base;
- a principal frontal frame member comprising two L-shaped arms joined by a second connecting brace, each L-shaped arm having a first end and a second end, wherein said first end of each said L-shaped arm is pivotally connected to said superjacent end of one said support rod;
- a collapsible posterior frame attached to said distal side of said base;
- a pair of leverage cams attached to said collapsible posterior frame, wherein said leverage cams engage said anterior frame when said posterior frame is moved between the extended position and the retracted position;
- and
- an observation platform pivotally attached to said posterior frame, wherein said observation platform is connected to said anterior frame when said assembly is in the extended position.
A method for retracting an observation stand assembly comprising the steps of:
- a. providing an anterior frame having a centrally located joint separating a basal frontal frame member and a principal frontal frame member, said basal frontal frame member being substantially aligned with said principal frontal frame member, and said basal frontal frame member being connected to a proximal side of a base;
- b. providing a posterior frame having a centrally located joint separating a basal rear frame member and a principal rear frame member, said basal rear frame member being substantially aligned with said principal rear frame member, and said basal rear frame member being connected to a distal side of said base;
- c. providing a pair of leveraging cams attached to said principal rear frame member;
- d. disconnecting said principal frontal frame member from said principal rear frame member;
- e. pivoting said posterior frame such that said principal rear frame member is unaligned with said basal rear frame member;
- f. engaging said anterior frame with said leveraging cams;
- g. pivoting said anterior frame such that said principal frontal frame member is unaligned with said basal frontal frame member;
- and
- h. cooperatively lowering said anterior frame and said posterior frame onto said base.
An observation stand assembly collapsible from an extended position to a retracted position, said assembly comprising:
- a base having a proximal side and a distal side;
- a basal rear frame member having a subjacent end and a superjacent end, wherein said subjacent end of said basal rear frame is connected to said distal side of said base;
- a principal rear frame member having a junior end and a senior end, wherein said junior end of said principal rear frame member is pivotally connected to said superjacent end of said basal rear frame member;
- a first pair of rollover lock joints connected between said basal rear frame member and said principal rear frame member;
- a basal frontal frame member having a subjacent end and a superjacent end, wherein said subjacent end of said basal frontal frame is connected to said proximal side of said base;
- a principal frontal frame member having a junior end and a senior end, wherein said junior end of said principal frontal frame member is pivotally connected to said superjacent end of said basal frontal frame member;
- a second pair of rollover lock joints connected between said basal frontal frame member and said principal frontal frame member;
- and
- a pair of lifting cams attached to said principal rear frame member, each lifting cam positioned on said principal rear frame member to engage said principal frontal frame member and said basal frontal frame member during repositioning of said observation stand assembly.
Dependencies are inferred from the claim text.