Abstract
In a car crush, in order to reduce a shock to a baby being laid in a child bed in a vehicle, it is necessary to control the impulsive force to be constant and under the allowable value. Therefore, it is proposed that an inverted pendulum style active child bed, which reduces the impulsive force affecting the bad in a car crush and is made the force to work perpendicularly with the bed. The effectiveness of the inverted pendulum style is confirmed by the simulation using the mechanism analysis software. As the result, it is clarified that the force affecting the bed is controlled to the constant desired value depending the collision velocity, and the maximum force can be reduced in comparison with the case in which the bed is being fixed at the sheet.