US 5,228,237 AGranted

Vehicle barrier

OwnerRalph G. Nasatkainventor

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Abstract

A vehicle barrier includes a barrier plate pivotally attached to a base support for movement between a horizontal non-operative position and an angularly operative position, a brace extending rearwardly from a pivotal support secured to a rear surface of the barrier plate and spaced from a barrier pivot disposed on a front of the base support, a brace stop device mounted on a rear of the base support, and operating mechanisms for raising and lowering the barrier gate and associated brace from horizontal non-operative positions to angularly operative positions and vice-versa. When the barrier plate is in its angularly operative position, a rear end of the brace abuts the brace stop device so that the brace is in an inclined position. The brace lies in a substantially horizontal plane and is out of engagement with the brace stop device when the barrier gate is in its horizontal non-operative position.

Claims15

Dependent claims

A vehicle barrier for roadways or the like comprising:

a) a base support having a front, a rear, support pivot means disposed on said front, and brace stop means mounted on said rear;
b) a barrier gate having front and rear surfaces, said barrier gate being pivotally attached to said support pivot means for movement between a horizontal not-operative position and an angularly operative position;
c) barrier pivot means disposed on said barrier gate and spaced a substantial distance from said support pivot means;
d) a brace extending from said barrier pivot means rearwardly thereof;
e) said brace lying in a substantially horizontal plane when said barrier gate is in said horizontal non-operative position and out of engagement with said brace stop means, and said brace being in an inclined position when said barrier gate is in said angularly operative position and a rear end of said brace abuts said stop means;
f) a housing disposed adjacent an end of said base support and having a front facing said barrier gate;
g) means for raising and lowering said barrier gate from said horizontal, non-operative position to said angularly operative position and vice-versa, said raising and lowering means being disposed within said housing;
h) said raising and lowering means including:
i) a cylinder having a piston for generating extension and retraction forces;
ii) said cylinder being mounted on a floor of said housing for pivotal movement;
iii) said piston having a free end pivotally coupled to said barrier gate;
iv) counterbalance means, said counterbalance means including a spring;
v) one end of said spring being attached to a support mounted on said floor of said housing;
and
vi) the other end of said spring being coupled to said barrier gate so that said spring dampens any extension force causing said barrier gate to move to said horizontal, non-operative position.

12 more elements

A vehicle barrier for roadways or the like comprising:

a) a base support having a front, a rear, support pivot means disposed on said front, and brace stop means mounted on said rear;
b) a barrier gate having front and rear surfaces, said barrier gate being pivotally attached to said support pivot means for movement between a horizontal non-operative position and an angularly operative position;
c) barrier pivot means disposed on said barrier gate and spaced a substantial distance from said support pivot means;
d) a brace extending from said barrier pivot means rearwardly thereof;
e) said brace lying in a substantially horizontal plane when said barrier gate is in said horizontal non-operative position and out of engagement with said brace stop means, and said brace being in an inclined position when said barrier gate is in said angularly operative position and a rear end of said brace abuts said stop means;
f) means for raising and lowering said barrier gate from said horizontal, non-operative position to said angularly operative position and vice-versa;
g) said barrier pivot means are secured to said rear surface of said barrier gate;
h) a plurality of braces;
i) a plurality of associated barrier pivot means and brace stop means are spaced along said barrier gate and base support, respectively;
j) a plurality of reinforcing plates secured to said barrier gate rear surface;
and
k) said reinforcing plates being disposed adjacent sides of said barrier pivot means and extending between a bottom edge of said barrier pivot means and a top edge of said barrier gate.

9 more elements

Dependencies are inferred from the claim text.