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The B-pillar is located between a vehicle's front and rear side glass, where it serves as a structural support of its roof. [4] The C-pillar is the rearmost on two- and four-door sedans and hatchbacks. [5] The D-pillar is the rearmost pillar on larger four-door vehicles such as station wagons and full-sized SUVs.
The configuration of a car body is typically determined by the layout of the engine, passenger and luggage compartments, which can be shared or separately articulated. A key design feature is the car's roof-supporting pillars , designated from front to rear of the car as A-pillar, B-pillar, C-pillar and D-pillar.
In some cars, the windshield is fillet with the roof-line with a big radius. A fillet round A-pillar can give a tall driver visibility problems. Also sometimes the A-pillar can block the driver from seeing motorcyclists. Also, the B-pillar can block the vision of a tall driver in small 4-door cars. Turning your head reduces blind spot
Ladder frame pickup truck chassis holds the vehicle's engine, drivetrain, suspension, and wheels The unibody - for the unitized body - is also a form of a frame. A vehicle frame, also historically known as its chassis, is the main supporting structure of a motor vehicle to which all other components are attached, comparable to the skeleton of an organism.
Quarter glass (or quarter light) on automobiles and closed carriages may be a side window in the front door or located on each side of the car just forward of the rear-facing rear window of the vehicle. [1] Only some cars have them. In some cases, the fixed quarter glass may set in the corner or "C-pillar" of the vehicle.
Three-box form Alfa Romeo Giulia (Type 105) sedan/saloon Three-box form A categorization based on overall form design using rough rectangle volumes. In the case of the three-box form, there is a "box" delineating a separate volume from the a-pillar forward, a second box comprising the passenger volume, and third box comprising the trunk area—e.g., a Sedan.
The chassis essentially functions as a more extensive pillar bedding, providing a metal-on-metal bearing surface that has reduced shifting potential under the stress of recoil. A barreled action bedded into a metal chassis would theoretically operate more consistently during repeated firing, resulting in better precision .
Backbone tube chassis is a type of automobile construction chassis that is similar to the body-on-frame design. Instead of a two-dimensional ladder-type structure , it consists of a strong tubular backbone (usually rectangular in cross section ) that connects the front and rear suspension attachment areas.