Roof edge safety system

In combination, a building and a roof edge safety system,

• said building comprising:
• at least one elevational wall;
• at least one roof adjoining said at least one elevational wall;
• and
• a parapet adjoining with and elevated with respect to said at least one roof and said at least one elevational wall, said parapet having at least two separate parapet elevational surfaces rising above said roof and meeting at a parapet top;
• said roof edge safety system comprising:
• at least one roof edge safety support having
• an edge clamp spanning said parapet top and applying a clamping force to said at least two separate parapet elevational surfaces, said edge clamp comprising
• a first contact pressing along a first force vector against a first one of said at least two separate parapet elevational surfaces, and
• a second contact and a third contact each pressing against a second one of said at least two separate parapet elevational surfaces along and thereby defining a second force vector, said second force vector equal in magnitude and opposed in direction to said first force vector,
• a clamp driver generating said clamping force, and
• a standard coupled adjacent to a first terminus to and rising from said edge clamp and extending therefrom to a top elevation above said parapet top and having at least one rope guide;
• and
• a tensioned cable passing through said at least one rope guide;
• wherein said edge clamp further comprises a bifurcated clamp leg supporting said second contact and said third contact;
• wherein said second contact and said third contact each define a contact surface that is coplanar with the other within a bifurcated contact plane, and
• wherein a line originating within said bifurcated contact plane equidistant between said second and third contacts and terminating with said contact surface of said first contact defines a clamping force axis;
• and
• wherein said standard is pivotal about a standard pivot axis that is transverse to clamping force axis, and said standard extends elevationally below said standard pivot axis, and
• wherein said clamp driver further comprises a force applied to said standard above said standard pivot axis.

In combination, a building and a roof edge safety system,

• said building comprising:
• at least one elevational wall;
• at least one roof adjoining said at least one elevational wall;
• and
• a parapet adjoining with and elevated with respect to said at least one roof and said at least one elevational wall, said parapet having at least two separate parapet elevational surfaces rising above said roof and meeting at a parapet top;
• said roof edge safety system comprising:
• at least one roof edge safety support having
• an edge clamp spanning said parapet top and applying a clamping force to said at least two separate parapet elevational surfaces, said edge clamp comprising
• a first contact pressing along a first force vector against a first one of said at least two separate parapet elevational surfaces, and
• a second contact and a third contact each pressing against a second one of said at least two separate parapet elevational surfaces along and thereby defining a second force vector, said second force vector equal in magnitude and opposed in direction to said first force vector,
• a clamp driver generating said clamping force, and
• a standard coupled adjacent to a first terminus to and rising from said edge clamp and extending therefrom to a top elevation above said parapet top and having at least one rope guide;
• and
• a tensioned cable passing through said at least one rope guide;
• wherein said edge clamp further comprises a bifurcated clamp leg supporting said second contact and said third contact;
• and
• wherein said second contact and said third contact each define a contact surface that is perpendicular with the other.

In combination, a building and a roof edge safety system,

• said building comprising:
• at least one elevational wall;
• at least one roof adjoining said at least one elevational wall;
• and
• a parapet adjoining with and elevated with respect to said at least one roof and said at least one elevational wall, said parapet having at least two separate parapet elevational surfaces rising above said roof and meeting at a parapet top;
• said roof edge safety system comprising:
• at least one roof edge safety support having
• an edge clamp spanning said parapet top and applying a clamping force to said at least two separate parapet elevational surfaces, said edge clamp comprising
• a first contact pressing along a first force vector against a first one of said at least two separate parapet elevational surfaces, and
• a second contact and a third contact each pressing against a second one of said at least two separate parapet elevational surfaces along and thereby defining a second force vector, said second force vector equal in magnitude and opposed in direction to said first force vector,
• a clamp driver generating said clamping force, and
• a standard coupled adjacent to a first terminus to and rising from said edge clamp and extending therefrom to a top elevation above said parapet top and having at least one rope guide;
• and
• a tensioned cable passing through said at least one rope guide;
• wherein said edge clamp further comprises a bifurcated clamp leg supporting said second contact and said third contact;
• and
• wherein said first contact comprises a horizontal plane cross-section that defines an arc.

In combination, a building and a roof edge safety system,

• said building comprising:
• at least one elevational wall;
• at least one roof adjoining said at least one elevational wall;
• and
• a parapet adjoining with and elevated with respect to said at least one roof and said at least one elevational wall, said parapet having at least two separate parapet elevational surfaces rising above said roof and meeting at a parapet top;
• said roof edge safety system comprising:
• at least one roof edge safety support having
• an edge clamp spanning said parapet top and applying a clamping force to said at least two separate parapet elevational surfaces, said edge clamp comprising
• a first contact pressing along a first force vector against a first one of said at least two separate parapet elevational surfaces, and
• a second contact and a third contact each pressing against a second one of said at least two separate parapet elevational surfaces along and thereby defining a second force vector, said second force vector equal in magnitude and opposed in direction to said first force vector,
• a clamp driver generating said clamping force, and
• a standard coupled adjacent to a first terminus to and rising from said edge clamp and extending therefrom to a top elevation above said parapet top and having at least one rope guide;
• and
• a tensioned cable passing through said at least one rope guide;
• wherein said at least one rope guide further comprises a cable roller pivotal about a cable roller pivotal axis generally parallel to a longitudinal axis of said standard.

In combination, a building and a roof edge safety system,

• said building comprising:
• at least one elevational wall;
• at least one roof adjoining said at least one elevational wall;
• and
• a parapet adjoining with and elevated with respect to said at least one roof and said at least one elevational wall, said parapet having at least two separate parapet elevational surfaces rising above said roof and meeting at a parapet top;
• said roof edge safety system comprising:
• at least one roof edge safety support having
• an edge clamp spanning said parapet top and applying a clamping force to said at least two separate parapet elevational surfaces, said edge clamp comprising
• a first contact pressing along a first force vector against a first one of said at least two separate parapet elevational surfaces, and
• a second contact and a third contact each pressing against a second one of said at least two separate parapet elevational surfaces along and thereby defining a second force vector, said second force vector equal in magnitude and opposed in direction to said first force vector,
• a clamp driver generating said clamping force, and
• a standard coupled adjacent to a first terminus to and rising from said edge clamp and extending therefrom to a top elevation above said parapet top and having at least one rope guide;
• and
• a tensioned cable passing through said at least one rope guide;
• wherein said roof edge safety system further comprises a second roof edge safety support spaced apart from and rigidly coupled to said at least one roof edge safety support by a support arm;
• wherein said at least one roof edge safety support edge clamp further comprises a bifurcated clamp leg supporting said second contact and said third contact,
• wherein said second contact and said third contact each define a contact surface that is coplanar with the other within a bifurcated contact plane, and said bifurcated contact plane is parallel to and offset from a plane defined by a contact surface of said first contact, and
• wherein a line originating within said bifurcated contact plane equidistant between said second and third contacts and terminating with said contact surface of said first contact defines a clamping force axis,
• wherein said second roof edge safety support edge clamp further comprises a second roof edge safety support bifurcated clamp leg supporting a second roof edge safety support second contact and a second roof edge safety support third contact, and
• wherein said second roof edge safety support second contact and said second roof edge safety support third contact each define a contact surface that is perpendicular with the other.