Retractable speed bump
OwnerClinton C. Thompsoninventor
Life of this patent
Estimating the term…
Abstract
A motorized retractable speed bump or warning device wherein the raising and lowering of the retractile is controlled by multiple remote means from signals generated by traffic conditions. The motorized retractable speed bump, wherein a retractile comprising of bi-folding hinged plates, which are elevated to present a visible obstruction to motor vehicles, and a position restraining device, operated by rotary and or linear motor drive means, by on/off manual push button switching, or through a series of Programmable Logic Controllers, by way of analog or digital signals emanating from permanently mounted speed detecting devices.
Claims7
A motorized retractable speed bump, comprising:
- first and second interlocking rectangular bump plates, said bump plates hingedly connected together along their longitudinal edges by a plurality of roll hinges;
- a first and a second guide pin longitudinally extending from said first bump plate, said first and said second guide pins located at opposite ends of said first bump plate;
- a shaft extending longitudinally below and fixedly attached to said second bump plate;
- a first motorized linear actuator;
- an actuating arm having a first and a second end, said arm fixedly attached at said first end to said shaft and rotatably attached at said second end to said first motorized linear actuator;
- a trough container, said container having a curved surface extending longitudinally therein, and a pair of channelled slots for slidably receiving said first and said second guide pins;
- wherein said shaft extends longitudinally through said container and supports said second bump plate, said plurality of roll hinges slidably engages said curved surface said first bump plate being supported by said plurality of roll hinges and by said guide pins inserted into said channelled slots;
- and wherein when said first motorized linear actuator is activated, said actuator arm turns said shaft causing said second bump plate to move in the direction of said shaft rotation and causing said plurality of roll hinges to move upwardly along said curved surface causing said first and said second bump plates to hinge about said plurality of roll hinges to form an angularly raised surface above said trough container.
Dependencies are inferred from the claim text.