October 22, 2021

A column

What is an A-pillar?

In car magazines and car guides, we often see "A-pillars," "B-pillars," and "C-pillars." Among them, the A pillar refers to the pillar between the windshield and the left front door.

In fact, the A-pillars, B-pillars, and C-pillars of automobiles have their own different functions, but at the same time they have their own contradictions, such as the contradiction between the visual field and stiffness of the A-pillar, and the contradiction between the rigidity and convenience of the B-pillar.

Why does A column affect vision?

It may be that drivers will have a feeling that if the driver's perspective does not block the view, the wide feeling actually explains a comfort problem, but it seems to be a contradiction to the car designer. Under normal circumstances, when the driver passes through the line of sight at the A-pillar, the overlapping angle of the eyes is 5-6 degrees. If the angle is set according to the driver's comfort, the smaller the overlap angle, the better. The thinner the A-pillar, the better. In the eyes of the designer, it is necessary to have a balance problem. Obviously he has to ensure the high rigidity of the A-pillar to reduce the risk of safety. From this perspective, the smaller the A-pillar, the better.

Extending --- A-pillar, B-pillar and C-pillar A-pillars between the engine room and the cockpit, and above the left and right rearview mirrors, will block some of your turning horizons, especially the left turn, so the discussion is more.

Between the front seat and the back seat of the cockpit, the B-pillar is the longitudinal bar between the two doors on both sides. It extends from the roof to the bottom of the car. From the inside, the seat belt is on the B-pillar.

The C-pillars are on both sides of the backrest headrest.

A-pillars, B-pillars, and C-pillars are all major parts of the structural strength of the supporting vehicle.

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