Combined vehicle barrier

A vehicle barrier for positioning on a roadway or the like comprising:

• a) a support plate adapted for placement across a roadway;
• b) a plurality of tread support means formed in series on said support plate with a space between adjacent tread support means;
• c) said tread support means including:
• i) a row of spaced tread blocks mounted in series on said support plate;
• and
• ii) each tread block having a height slightly greater than the diameter of each spike;
• d) a rod having a row of spikes attached thereto and being rotatably disposed across said support plate so that said spikes are movably received between respective spaced tread support means;
• e) tensioning means, coupled to an end of said rod, for maintaining said row of spikes in a first position extending above said spaced tread support means and forming an acute angle with said support plate;
• f) means for lowering said row of spikes into a second position between said spaced tread support means;
• and
• g) whereby said row of spikes in said first position rotate downwardly into said second position when impacted by a vehicle approaching said barrier from one direction but are maintained in said first position by said tensioning means when impacted by a vehicle approaching from the other direction.

A combined barrier for controlling vehicle traffic comprising:

• a) a vehicle barrier for positioning on a roadway including:
• i) a support plate adapted for placement across a roadway;
• ii) a plurality of tread support means formed in series on said support plate with a space between adjacent tread support means;
• iii) a rod having a row of spikes attached thereto and being rotatably disposed across said support plate so that said spikes are movably received between respective spaced tread support means;
• iv) tensioning means, coupled to an end of said rod, for maintaining said row of spikes in a first position extending above said tread support means plates and forming an acute angle with said support plate;
• v) said tensioning means including a counter spring fixed at one end to an immovable member, the other end of which is coupled to said interconnecting means;
• vi) means for lowering said row of spikes into a second position between said spaced tread support means;
• and
• b) a housing disposed adjacent an end of said support plate;
• c) swinging gate means mounted to said housing above said vehicle barrier for movement between open and closed positions;
• d) means, disposed within said housing and coupled to said swinging gate means and said tensioning means, for interconnecting the movement of said swinging gate means with the movement of said row of spikes;
• e) operating means, in communication with said interconnecting means, for moving said swinging gate means and said row of spikes in unison between an open or second position and a closed or first position;
• and
• f) said operating means including:
• i) a motor;
• and
• ii) cylinder means, driven by said motor, for imparting motion to said interconnecting means thereby causing said swinging gate means and row of spikes to move.

A vehicle barrier assembly comprising:

• a) a barrier support housing having upper and lower sections;
• b) a shaft rotatably journalled in said housing upper section and having one end extending outwardly from said housing and the other end positioned inside said housing;
• c) a gate arm rotatably mounted on said one end of said shaft and movable between horizontal and vertical positions;
• d) said other end of said shaft having a lever secured thereto and rotatably with said shaft;
• e) said lever arm having a first end;
• f) drive means in said housing connected to said shaft for moving said gate arm between said vertical and said horizontal positions;
• g) gate arm counter balance spring means in said housing having first and second ends;
• h) said gate arm counter balance spring means extending downwardly from said upper section into said lower section and having its first end secured to said first end of said lever arm;
• i) said lower section of said housing including spring tension adjustment means;
• j) said spring tension adjustment means connected to said second end of said gate arm counter balance spring means for adjustably tensioning said counter balance spring means;
• and
• k) said drive means and said gate arm counter balance spring means working in cooperation with each other whereby a minimum amount of energy will be required by said drive means to raise said gate arm to a vertical position.