Guard rail system

An apparatus comprising a modular barricade, said modular barricade comprising:

• a rail,
• first and second posts,
• first and second couplings that receive corresponding first and second ends of said rail,
• rail fasteners that attach said ends of said rail to said first and second couplings, and
• post fasteners that attach said first coupling to said first post and said second coupling to said second post,
• wherein each of said first and second couplings comprises a housing that defines a chamber that receives said rail and an internal support that extends through said chamber and into said rail,
• wherein at least two of said rail fasteners pass through said housing, through said rail, and through said internal support, and
• wherein a plane perpendicular to said internal support bisects said housing, wherein said housing has an open end that receives said rail, wherein said housing comprises a distal portion, wherein a portion of said housing in said distal portion of said housing is closer to said open end than to said plane, and wherein said rail fasteners pass through said distal portion.

An apparatus comprising a modular barricade, said modular barricade comprising:

• a rail,
• first and second posts,
• first and second couplings that receive corresponding first and second ends of said rail,
• rail fasteners that attach said ends of said rail to said first and second couplings, and
• post fasteners that attach said first coupling to said first post and said second coupling to said second post,
• wherein each of said first and second couplings comprises a housing that defines a chamber that receives said rail and an internal support that extends through said chamber and into said rail,
• wherein at least two of said rail fasteners pass through said housing, through said rail, and through said internal support, and
• wherein said post fastener comprises a nut, a resilient washer, and threaded screw that passes through said washer and engages said nut.

An apparatus comprising a modular barricade, said modular barricade comprising:

• a rail,
• first and second posts,
• first and second couplings that receive corresponding first and second ends of said rail,
• rail fasteners that attach said ends of said rail to said first and second couplings, and
• post fasteners that attach said first coupling to said first post and said second coupling to said second post,
• wherein each of said first and second couplings comprises a housing that defines a chamber that receives said rail and an internal support that extends through said chamber and into said rail,
• wherein at least two of said rail fasteners pass through said housing, through said rail, and through said internal support, and
• wherein said post fastener comprises a shaft having a cam that protrudes from the shaft and a receiver that receives said cam to cause attachment between said coupling and said post.

An apparatus comprising a modular barricade, said modular barricade comprising:

• a rail,
• first and second posts,
• first and second couplings that receive corresponding first and second ends of said rail,
• rail fasteners that attach said ends of said rail to said first and second couplings, and
• post fasteners that attach said first coupling to said first post and said second coupling to said second post,
• wherein each of said first and second couplings comprises a housing that defines a chamber that receives said rail and an internal support that extends through said chamber and into said rail,
• wherein at least two of said rail fasteners pass through said housing, through said rail, and through said internal support, and
• wherein said post comprises a lower section, an upper section, and a coupling sleeve having a bottom portion and a top portion, wherein said bottom portion is within a recess in a top end of said lower section, wherein said top portion is within a recess in a bottom end of said upper section, and wherein said sleeve is connected to said upper section and to said lower section.

An apparatus comprising a modular barricade, said modular barricade comprising:

• a rail,
• first and second posts,
• first and second couplings that receive corresponding first and second ends of said rail,
• rail fasteners that attach said ends of said rail to said first and second couplings, and
• post fasteners that attach said first coupling to said first post and said second coupling to said second post,
• wherein each of said first and second couplings comprises a housing that defines a chamber that receives said rail and an internal support that extends through said chamber and into said rail,
• wherein at least two of said rail fasteners pass through said housing, through said rail, and through said internal support, and
• the modular barricade further comprising an anchor that comprises a resilient material and first and second anchor halves, each having a slot, wherein said slots, when said first and second halves have been joined, accommodate a flange that extends radially from a distal end of said post, wherein said resilient material is disposed such that, upon deformation thereof, said resilient material exerts a force that restores the post to its vertical orientation.