When the Ford Expedition liftgate is open, the pressurized lifting struts are visible. The liftgate has a center latch mechanism, located low along the floorline.
The Dutch doors of this GM Safari minivan open up the lower portion of the rear of the vehicle. The half door on the driver's side closes first and latches into the floor. The half door on the passenger's side then closes and latches to the left half door.
The full doors on this Tahoe have fixed glass panels in their upper half. The passenger rear door opens first then the driver?s side full door can be released. GM refers to this design as the "cargo door" option.
The tailgate feature shown on a GMC Blazer secures on two safety latches positioned along each side. The center handle that releases both latches to open the tailgate is mounted on the inside panel.
The Toyota 4Runner is an example of a vehicle with a power rear window that lowers into the tailgate. Once lowered, the tailgate can be opened outward.
Land Rover's Discovery SUV is just one example of a vehicle with a large-size full door at the rear. This door pivots on the hinges visible near the passenger rear taillight area.
The lift window or lift glass of a Mercury Mountaineer shows how one end of the lifting struts are secured directly to the glass. If the glass were to break, a compressed strut will expand quickly.
The tailgate of the Avalanche SUV can be opened and the bed cover removed. Inside the passenger compartment, the rear seats can be pivoted forward and the rear-window glass panel removed to transform the vehicle into a pickup truck.
Subject: Rear Design Features of Vehicles: Part 1
Topic: Identifying Rear Design Features of Vehicles
Objective: Identify by name the operating features found at the rear of selected vehicles and how those features operate.
Task: Given pictures of the rear of vehicles, identify the design features by name and explain how the rear of the vehicle opens under normal conditions.
Access pathways to reach the interior of a vehicle at a crash scene include doors, windows, windshield and the body of the vehicle. Side doors are used most often to reach those inside. If the vehicle is a sport utility vehicle (SUV), minivan, hatchback sedan or station wagon, access may be gained through the rear of the vehicle as well. With over 180 different makes and models of vehicles produced this current model year, it is important that responders recognize what design features are at the rear of a vehicle and how those features operate.
At a crash, if access the patients or a pathway to extricate them will be through the rear of the vehicle, the first step is to understand how the features operate normally. Vehicle terminology describing these rear design features is presented to assist in standardizing this aspect of vehicle rescue training:
· A lift window is a glass window, hinged at the roofline, that opens upward. This provides an opening of the upper half, 50%, of the rear. A lift window can be framed or unframed tempered glass. It is also called a lift glass by some automakers.
· A power window is a retractable window glass that lowers inside a tailgate. When lowered, the power window provides approximately a 50% opening across the top of the tailgate.
· A lift gate is a full-height one-piece unit, hinged at the roofline, that opens upward. This provides an opening of 100% of the rear of the vehicle.
· A tailgate is a one-piece unit, hinged along the floorline, that opens out and down. When open, a tailgate provides a 50% opening along the lower half of the rear of the vehicle.