Foot operated electrical control

An apparatus for a foot operated mechanism comprising:

• a base member having side walls defining a top opening cavity,
• a first shaft rotatably mounted in said side walls of said base member,
• a treadle member mounted to said first shaft and arranged to rotate said first shaft when depressed by foot pressure,
• an electrical element having a rotatable operating shaft secured to said base member in said cavity,
• an operating arm having a first end and a free end, said operating arm mounted to said first shaft at said first end, said free end extends toward said electrical element operating shaft, said free end including a surface defined between upper and lower edges,
• a cord of predetermined length connected to said operating arm and extending over said surface, said cord spirally wrapped a plurality of times about said electrical element operating shaft,
• wherein said treadle member has a top foot engaging portion and side walls depending there from, said treadle member side walls having channels defined therein with walls extending outwardly from said treadle member side walls, openings defined through said channels intermediate the ends thereof for the ends of said first shaft, said ends of said first shaft receiving a pin there through of a length sufficient to engage the walls extending outwardly from said treadle member side walls and defining said channels on either side of said first shaft.

An apparatus for a foot operated mechanism comprising:

• a base member having side walls defining a top opening cavity,
• a first shaft rotatably mounted in said side walls of said base member,
• a treadle member mounted to said first shaft and arranged to rotate said first shaft when depressed by foot pressure,
• an electrical element having a rotatable operating shaft secured to said base member in said cavity,
• an operating arm having a first end and a free end, said operating arm mounted to said first shaft at said first end, said free end extends toward said electrical element operating shaft, said free end including a surface defined between upper and lower edges,
• a cord of predetermined length connected to said operating arm and extending over said surface, said cord spirally wrapped a plurality of times about said electrical element operating shaft,
• wherein said operating arm has a long leg and a short leg, said surface being defined on said long leg at the free end thereof substantially perpendicular to said long leg, a guide way for said cord defined on said upper edge, an end of said cord being connected to said short leg.

An apparatus for a foot operated mechanism comprising:

• a base member having side walls defining a top opening cavity,
• a first shaft rotatably mounted in said side walls of said base member,
• a treadle member having treadle member side walls,
• an electrical element having a rotatable operating shaft secured to said base member in said cavity,
• an operating arm having a first end and a free end, said operating arm mounted to said first shaft at said first end, said free end extends toward said electrical element operating shaft, said free end including a surface defined between upper and lower edges,
• a cord of predetermined length connected to said operating arm and extending over said surface, said cord spirally wrapped a plurality of times about said electrical element operating shaft, and
• an aperture adjacent the lower edge of said surface and an end of said cord is anchored at said aperture.

An apparatus for a foot operated mechanism comprising:

• a base member having side walls defining a top opening cavity,
• a first shaft rotatably mounted in said side walls of said base member,
• a treadle member mounted to said first shaft and arranged to rotate said first shaft when depressed by foot pressure,
• an electrical element having a rotatable operating shaft secured to said base member in said cavity,
• an operating arm having a first end and a free end, said operating arm mounted to said first shaft at said first end, said free end extends toward said electrical element operating shaft, said free end including a surface defined between upper and lower edges,
• a cord of predetermined length connected to said operating arm and extending over said surface, said cord spirally wrapped a plurality of times about said electrical element operating shaft,
• wherein said first shaft is frictionally engaged by braking means secured to said base member, said braking means determining the foot pressure necessary to rotate said first shaft and acting to hold said first shaft in a position determined by applied foot pressure on said treadle member.

An apparatus for a foot operated mechanism comprising:

• a base member having side walls containing an electrical element,
• a shaft journaled in said side walls,
• a treadle member having a top foot engaging portion and side walls depending from said top portion, said treadle member side walls having channels defined therein with walls extending outwardly from said treadle member side walls,
• openings for the ends of said shaft defined intermediate the ends of said channels, said each end of said shaft receiving a pin therethrough of a length sufficient to engage the walls extending outwardly from said treadle member side walls and defining said channels on either side of said shaft.