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US 2022/0220790 A1Published application
Structure access system
AssigneeDjr Farms LLC
InventorsDee Loy RUPP, Scott FUHRIMAN, Jerry RHODES
Life of this patent
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Abstract
A structure access system that allows a user at ground level to open and close a traditionally ladder-accessed entrance on the top of a structure like a silo through a pivotable lever-controlled linkage that includes elongate members joined by a rocker arm configured to translate vertical movement into angled movement to open and close the top entrance.
Claims15
A structure access system comprising:
- a pivotable lever;
- a first elongate member with first and second ends, the first elongate member pivotally attached to the pivotable lever at the first elongate member first end;
- a rocker arm pivotally attached to the first elongate member second end;
- a second elongate member with first and second ends, the second elongate member pivotally attached to the rocker arm at the second member first end;
- and
- an entrance mount to which the second elongate member is pivotally attached at the second member second end, the entrance mount attached to a structure entrance that is above a user's ground-standing reach.
3 more elements
A structure access system comprising:
- a pivotable lever;
- a first rigid elongate member with first and second ends, the first rigid elongate member pivotally attached to the pivotable lever at the first rigid elongate member first end;
- a rocker arm pivotally attached to the first rigid elongate member second end;
- a second rigid elongate member with first and second ends, the second rigid elongate member pivotally attached to the rocker arm at the second rigid elongate member first end;
- and
- a top entrance mount to which the second rigid elongate member is pivotally attached at the second member second end, the top entrance mount attached to a structure entrance that is above a user's ground-standing reach;
- and
- wherein the rocker arm is generally isosceles triangle-shaped with a first base angle, second base angle, and a vertex angle, the rocker arm further having
- a first connection adjacent to the first base angle that pivotally attaches the rocker arm to a structure for storing bulk material;
- a second connection adjacent to the vertex angle that pivotally attaches the rocker arm to the first rigid elongate member;
- and
- a third connection adjacent to the second base angle that pivotally attaches the rocker arm to the second rigid elongate member.
9 more elements
An aftermarket structure access system configured to provide access to a structure for storing bulk material comprising:
- a pivotable lever having a first position for opening an entrance to the structure for storing bulk materials and a second position for closing the entrance to the structure for storing bulk material, the entrance above a user's ground-standing reach;
- a first rigid elongate member with first and second ends, the first rigid elongate member pivotally attached to the pivotable lever at the first rigid elongate member first end;
- a rocker arm pivotally attached to the first rigid elongate member second end;
- a second rigid elongate member with first and second ends, the second rigid elongate member pivotally attached to the rocker arm at the second rigid elongate member first end;
- a top access mount to which the second rigid elongate member is pivotally attached at the second rigid elongate member second end, the top access mount attached to the entrance;
- wherein the rocker arm is generally isosceles triangle-shaped with a first base angle, second base angle, and a vertex angle, the rocker arm further having
- a first connection adjacent to the first base angle that pivotally attaches the rocker arm to the structure for storing bulk materials, the rocker arm pivotable about the first connection;
- a second connection adjacent to the vertex angle that pivotally attaches the rocker arm to the first rigid elongate member;
- and
- a third connection adjacent to the second base angle that pivotally attaches the rocker arm to the second rigid elongate member;
- the rocker arm configured to translate vertical movement from the first rigid elongate member to an angle that is less than 90 degrees.
8 more elements
Dependencies are inferred from the claim text.