The Original Intention of RV Seat Modification

1. The seat is a large component in the car compartment, so in practical use, its volume should be as small as possible, the weight should be light, and the cost should be low.

2. Because it is a component that supports the human body, to ensure safety, it must meet the requirements of various standards and regulations (shape, size, strength, etc.).

3. The seat should give the occupants a good sense of static pressure, so that the occupants can maintain a natural viewing posture with less muscle activity, and at the same time, the distribution of body pressure should not hinder blood circulation or accelerate fatigue. Therefore, it is necessary to properly select seat springs and cushioning materials, and use seat adjustment devices and backrest tilt adjustment devices to adjust the height and front and rear position of the seat to make its function reasonable.

4. The seat cushion surface must firmly support the ischial tuberosity of the seated person, and the front angle of the seat cushion should not support the thigh. The seat back must be able to withstand the reaction force of the brake pedal, and the backrest should not be tired after a long period of forward bending.

5. The seat cushion tilt angle can be adjusted to adjust the angle of the lower limbs of the human body. The driver can change his posture according to different driving conditions, just like driving in the city and on the dedicated road for automobiles. In this way, the center of gravity of the human body can easily pass through the rotation axis of the waist joint (in this state, the muscles do less work).

6. In order to reduce the relative vibration between the seated person and the seat back, a spring system should be used.

7. The distance from the brake pedal and the clutch pedal to the seat should be equal to the distance and angle of the feet moving the pedal to the bottom.