| 摘要 |
PURPOSE:To enable to perform a safe unning of a car and to improve a working precision of a device, by a method wherein a weight, answering to a centrifugal force, is fitted in a cylinder, and an electric switch is located at the moving are of the weight. CONSTITUTION:A weight 2, being of a metal ball, slidably is fitted in a cylinder 1, and is positioned between the nip formed by springs 3 and 4 secured to the cylinder 1. When a car is approaching a curve of a road, the weight 2 moves in an outward direction of a curve running from a center point position P through a centrifugal force against a balancing force, produced by the springs 3 and 4, corresponding to radius of curvature and a running speed. If the weight 2 reaches a microswitch 5b through said movement, the weight 2 contacts a sensing projection in the cylinder 1, and presses it to close the switch 5b. This causes operating of a buzzer 8 to sound an alarm. |
