Scissor stack assembly

A scissor stack assembly for raising a load between a collapsed position and a raised position, comprising:

• a right bottom arm comprising a tube with connecting pins extending inwardly proximate opposite ends of tube;
• and a retaining pin extending inward at a central location along the length of the tube;
• a left bottom arm comprising a tube with connecting pins extending inwardly proximate opposite ends of tube, and a retaining pin extending inward at a central location along the length of the tube;
• a first cylinder arm positioned between the right and left bottom arms, the first cylinder arm connected to the right and left bottom arms at the retaining pins of the arms;
• a plurality of right inner and outer arms operably connected to the right bottom arm, the plurality of right inner and outer arms retained to each other at retaining pins extending from and affixed to a central location along the length of each of the outer arms and through an aperture at a central location of each of the inner arms such that the pins do not rotate relative to the outer arms;
• a plurality of left inner and outer arms operably connected to the left bottom arm, the plurality of left inner and outer arms retained to each other at retaining pins extending from and non-rotationally affixed to a central location along the length of each of the said left outer arms and through, an aperture at a central location of each of the said left inner arms;
• at least one wire form comprising a piece of wire having a loop at a first end which attached to a cap and a hook at a second end, said wire form configured to aid in routing a hose;
• a second cylinder arm operably connected between the plurality of right inner and outer arms and the plurality of left inner and outer arms;
• and a cylinder positioned between the first and second cylinder arms;
• wherein each retaining pin extends through one outer arm and one inner arm.

A method of routing a cable or hose from a lower end of a scissor stacking assembly to an upper end of the assembly, comprising:

• providing a scissor stack assembly including a plurality of inner and outer arms connected to one another, a retainer pin extending from the outer arms through an aperture in the inner arms to retain the arms together, and a plurality of crosstubes extending from a right side of the assembly to a left side;
• connecting a plurality of wire forms from one of the plurality of crosstubes to one of the plurality of retaining pins along an inside of an outer or inner arm from the lower end of the assembly to the upper end of the assembly;
• and
• attaching a cable or hose to the plurality of wire forms from the lower end of the assembly to the upper end of the assembly.

A scissor stack assembly, comprising:

• a right side comprising a plurality of outer arms including connecting pins extending from opposite ends of the arms and a retaining pin extending from a central location along the length of the arm, and a plurality of inner arms connected to the outer arms, the inner arms including connecting apertures at opposite ends of the arms and a retaining aperture at a central location along the length of the arm;
• wherein the retaining pins are configured to be inserted through the retaining apertures and the connecting pins are configured to be inserted through the connecting apertures, said retaining pins being affixed to the outer arms such that the pins do not rotate relative to the outer arms;
• a left side comprising a plurality of outer arms including connecting pins extending from opposite ends of the arms and a retaining pin extending from a central location along the length of the arm, and a plurality of inner arms connected to the outer arms, the inner arms including connecting apertures at opposite ends of said inner arms and a retaining aperture at a central location along the length of the arm;
• wherein the retaining pins are configured to be inserted through the retaining apertures and the connecting pins are configured to be inserted through the connecting apertures;
• a plurality of retaining caps covering a portion of the retaining pins to hold the inner and outer arms together;
• means for securing the caps to the retaining pins, inserted through both the cap and retaining pin;
• a plurality of crosstubes extending from the plurality of connecting pins of the right side to the plurality of connecting pins on the left side;
• a cylinder operably connected to the right and left sides to extend and retract the assembly between a collapsed position and a raised position;
• and
• a plurality of wire forms attached to the plurality of crosstubes and caps configured to aid in the routing of a hose.