Vehicle security barrier

Claim 2

A vehicle security barrier for selectively prohibiting a vehicle from accessing a preselected area and for otherwise controlling vehicular traffic, said vehicle security barrier comprising: a base defining a travelway over which said vehicle can be driven, said base comprising a forward end portion defining an entryway whereby said vehicle enters onto said travelway and a rearward end portion defining a travelway exit whereby said vehicle selectively exits said travelway; a security gate pivotally mounted on said base for being selectively raised to obstruct said travelway and prohibit said vehicle from exiting said travelway via said travelway exit, said security gate having an outboard edge; gate support means for bracing said gate upon said gate pivoting to a preselected vehicle impact position, said gate support means having at least one sacrificial gate support arm having first and second end portions, said first end portion being pivotally secured to said gate and said second end portion movably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the movement of said second end portion of said sacrificial support arm when said gate is in said preselected vehicle impact position, said gate support means further having a primary gate support means for terminating the further movement of said security gate when said gate is forced to a preselected position beyond said vehicle impact position; and reciprocal actuating means for selectively raising and lowering said security gate.

Claim 3

The vehicle security barrier of claim 1 wherein said gate support arm is pivotally secured to said gate proximate said outboard edge.

Claim 4

The vehicle security barrier of claim 1 wherein said travelway comprises a top cover plate secured to said security gate.

Claim 5

The vehicle security barrier of claim 3 further comprising at least one support arm pivotally secured to an underside of said top cover plate and pivotally secured to said base for selectively lifting said cover plate from said base as said gate is selectively raised to said vehicle impact position.

Claim 6

A vehicle security barrier for selectively prohibiting a vehicle from accessing a preselected area and for otherwise controlling vehicular traffic, said vehicle security barrier comprising: a base defining a travelway over which said vehicle can be driven, said base comprising a forward end portion defining an entryway whereby said vehicle enters onto said travelway and a rearward end portion defining a travelway exit whereby said vehicle selectively exits said travelway; a security gate pivotally mounted on said base for being selectively raised to obstruct said travelway and prohibit said vehicle from exiting said travelway via said travelway exit, said security gate having an outboard edge; gate support means for bracing said gate upon said gate pivoting to a preselected vehicle impact position, said gate support means having at least one sacrificial gate support arm having first and second end portions, said first end portion being pivotally secured to said gate and said second end portion movably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the movement of said second end portion of said sacrificial support arm when said gate is in said preselected vehicle impact position, said gate support means further having at least one primary gate support arm having first and second end portions, said first end portion being pivotally secured to said gate and said second end portion movably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the movement of said second end portion of said primary support arm when said gate is forced to a preselected position beyond said vehicle impact position; and reciprocal actuating means for selectively raising and lowering said security gate.

Claim 7

A vehicle security barrier for selectively prohibiting a vehicle from accessing a preselected area and for otherwise controlling vehicular traffic, said vehicle security barrier comprising: a base defining a travelway over which said vehicle can be driven, said base comprising a forward end portion defining an entryway whereby said vehicle enters onto said travelway and a rearward end portion defining a travelway exit whereby said vehicle selectively exits said travelway; a security gate pivotally mounted on said base for being selectively raised to obstruct said travelway and prohibit said vehicle from exiting said travelway via said travelway exit, said security gate having an outboard edge; gate support means for bracing said gate upon said gate pivoting to a preselected vehicle impact position, said gate support means having at least one sacrificial gate support arm having first and second end portions, said first end portion being pivotally secured to said gate and said second end portion movably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the movement of said second end portion of said sacrificial support arm when said gate is in said preselected vehicle impact position, said gate support means further having at least one primary gate support arm having first and second end portions, said first end portion being pivotally secured to said gate and said second end portion movably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the movement of said second end portion of said primary support arm when said gate is forced to a preselected position beyond said vehicle impact position; and reciprocal actuating means for selectively raising and lowering said security gate.

Claim 8

The vehicle security barrier of claim 5 wherein said gate support means further comprises at least one caster secured to said second end portions of said sacrificial and primary support arms for rollably engaging said base.

Claim 9

The vehicle security barrier of claim 5 wherein said travelway comprises a top cover plate secured to said security gate.

Claim 10

The vehicle security barrier of claim 7 further comprising at least one support arm pivotally secured to an underside of said top cover plate and pivotally secured to said base for selectively lifting said cover plate from said base as said gate is selectively raised to said vehicle impact position.

Claim 11

The vehicle security barrier of claim 5 wherein said primary and secondary gate support arms are pivotally secured to said gate proximate said outboard edge.

Claim 12

A vehicle security barrier for selectively prohibiting a vehicle from accessing a preselected area and for otherwise controlling vehicular traffic, said vehicle security barrier comprising: a base defining a travelway over which said vehicle can be driven, said base comprising a forward end portion defining an entryway whereby said vehicle enters onto said travelway and a rearward end portion defining a travelway exit whereby said vehicle selectively exits said travelway; a security gate pivotally mounted on said base for being selectively raised to obstruct said travelway and prohibit said vehicle from exiting said travelway via said travelway exit, said security gate having an outboard edge; said travelway comprising a top cover plate secured to said security gate; at least one top cover plate support arm pivotally secured to an underside of said top cover plate and pivotally secured to said base for selectively lifting said cover plate from said base as said gate is selectively raised to a preselected vehicle impact position; gate support means for bracing said gate upon said gate pivoting to said preselected vehicle impact position, said gate support means having at least one sacrificial gate support arm having first and second end portions, said first end portion being pivotally secured to said gate proximate said outboard edge, said sacrificial gate support arm further having at least one caster secured to said second end portion for rollably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the rolling movement of said second end portion of said sacrificial support arm when said gate is in said preselected vehicle impact position, said gate support means further having at least one primary gate support arm having first and second end portions, said first end portion being pivotally secured to said gate proximate said outboard edge, said primary gate support arm further having at least one caster secured to said second end portion for rollably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the rolling movement of said second end portion of said primary support arm when said gate is forced to a preselected position beyond said vehicle impact position; and reciprocal actuating means for selectively raising and lowering said security gate.

Claim 13

A vehicle security barrier for selectively prohibiting a vehicle from accessing a preselected area and for otherwise controlling vehicular traffic, said vehicle security barrier comprising: a base defining a travelway over which said vehicle can be driven, said base comprising a forward end portion defining an entryway whereby said vehicle enters onto said travelway and a rearward end portion defining a travelway exit whereby said vehicle selectively exits said travelway; a security gate pivotally mounted on said base for being selectively raised to obstruct said travelway and prohibit said vehicle from exiting said travelway via said travelway exit, said security gate having an outboard edge; said travelway comprising a top cover plate secured to said security gate; at least one top cover plate support arm pivotally secured to an underside of said top cover plate and pivotally secured to said base for selectively lifting said cover plate from said base as said gate is selectively raised to a preselected vehicle impact position; gate support means for bracing said gate upon said gate pivoting to said preselected vehicle impact position, said gate support means having at least one sacrificial gate support arm having first and second end portions, said first end portion being pivotally secured to said gate proximate said outboard edge, said sacrificial gate support arm further having at least one caster secured to said second end portion for rollably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the rolling movement of said second end portion of said sacrificial support arm when said gate is in said preselected vehicle impact position, said gate support means further having at least one primary gate support arm having first and second end portions, said first end portion being pivotally secured to said gate proximate said outboard edge, said primary gate support arm further having at least one caster secured to said second end portion for rollably engaging said base, said gate support means further having at least one stop member secured to said base for terminating the rolling movement of said second end portion of said primary support arm when said gate is forced to a preselected position beyond said vehicle impact position; and reciprocal actuating means for selectively raising and lowering said security gate.