By john. Door. Published at Saturday, November 26th, 2016 - 00:34:13 AM.
Sliding door (car) : A sliding door is a type of door is mounted on or suspended from a track for the door to slide, usually horizontally. It is a feature predominately relegated to minibuses and buses to provide a large entrance or exit for passengers without obstructing the adjacent pathway between the vehicle and any adjoining object or the side(s) of passenger and commercial vans so as to allow a larger unobstructed access to the interior for loading and unloading. Sliding doors are often used in mini MPVs such as the Toyota Porte and Peugeot 1007 and Renault Kangoo, but are more commonly used in full-sized MPVs like the Toyota Previa, the Citroën C8, the Peugeot 807, the Chrysler Voyager and the Kia Sedona. Their use has increased over the years as MPVs have increased in popularity, because it gives easy access and makes parking in tight spaces possible. The most common type of sliding door, that has a three-point suspension and opens outwards, then runs along the side of the vehicle, was introduced in 1964 by Volkswagen AG as an option on its Type 2 vans.
Building access Since at least medieval times there have been hinges to draw bridges for defensive purposes for fortified buildings. Hinges are used in contemporary architecture where building settlement can be expected over the life of the building. For example, the Dakin Building in Brisbane, California, was designed with its entrance ramp on a large hinge to allow settlement of the building built on piles over bay mud. This device was effective until October 2006, when it was replaced due to damage and excessive ramp slope.
Sliding glass door : A sliding glass door or patio door, is a type of sliding door in architecture and construction, is a large glass window opening in a structure that provide door access from a room to the outdoors, fresh air, and copious natural light. A sliding glass door is usually considered a single unit consisting of two panel sections, one being fixed and one a being mobile to slide open. Another design, a wall sized glass pocket door has one or more panels movable and sliding into wall pockets, completely disappearing for a wide open indoor-outdoor room experience. The sliding glass door was introduced as a significant element of pre-war International style architecture in Europe and North America. Their precedent is the sliding Shōjiand Fusuma panel door in traditional Japanese architecture. The post-war building boom in modernist and Mid-century modern styles, and on to suburban ranch-style tract houses, multi-unit housing, and hotel-motelchains has made them a standard element in residential and hospitality building construction in many regions and countries.
Vehicle door parts : Door locks and latches : Most vehicle doors are secured closed to the vehicle body with latches which may be locked to prevent unauthorized access from the exterior. There are a variety of car door locking systems. Door locks may be manually, or automatically operated, and may be centrally or individually operated. Also, they may be operated by remote control, with the transmitter often integrated into the main vehicle access / ignition key. Additionally, rear passenger doors are frequently fitted with child safety locks to prevent children from exiting the vehicle unless the door is opened from the exterior. These are also frequently used on police cars, to prevent suspect criminals from escaping whilst in police custody. Vehicle door latches on practically all vehicles today are usually operated by use of a handle which requires the user to pull, lift, or tug - with some force towards themselves rather than push. There is a reason for this. As late as the 1970s, some vehicles used exposed push buttons to operate the door latch, such as certain Opel models. The unfortunate side effect of this design was that external objects which touched a vehicle during a spinout could trigger the latch; the door would pop open and eject the vehicle occupants. A death which occurred exactly that way led to the landmark legal case of Daly v. General Motors Corp., 20 Cal. 3d 725 (1978), in which the Supreme Court of California merged strict product liability with comparative fault, and thereby affirmed the right of General Motors to introduce evidence that decedent Kirk Daly flew out of his Opel not only because the door popped open, but because he was intoxicated and not wearing a seat belt. Door switch : Door switches are simple on/off mechanisms connected to the interior light (dome light), and may also be connected to a warning light, speaker or other device, to inform the driver when the door is not closed. The door light is standard equipment on all cars. In American cars from the 1950s-1990s, they had buzzers or door dingers that sounded, along with the check light, whenever any door is open. Windows : Most vehicle doors have windows, and most of these may be opened to various extents. Most car door windows retract downwards into the body of the doors, and are opened either with a manual crank, or switchable electrical motor (electric car windows other than the drivers window can usually be controlled at both the door itself and centrally by an additional control at the drivers position). In the past, certain retracting windows were operated by direct (up or down) pressure, and were held in the up position by friction instead of by an internal lift mechanism. Other cars, particularly older US-manufactured vans, have hinged windows with a folded lever mechanism to push and hold the window out from its closed position. Door brakes or stays : Vehicle doors often include brakes, or stays, that slow the door down just before it closes, and also prevent the door opening further than its design specification. The current trend is to have a three-stage door brake. Door brakes exist because the doors on the first vehicles were heavy, so they had to be pushed hard to make them close. Soon after, automotive manufacturers managed to construct lighter doors, but users were used to closing doors with force so doors quickly became damaged. Door brakes were then introduced to slow down the door just before the door closed to prevent damage; these soon became standard. Door categorization : Hatchback and estate or station wagon bodies are sold as three-door or five-door models. In these cases, the rear hatch is classified as a door; this is because it enters the passenger compartment. With other vehicles such as saloons or sedans and coupés, the boot/trunk lid is not counted as a door by definition because it is for a separate storage compartment - these cars are sold as two-door or four-door. This system is mainly used in Europe, and is less common in North America. In Europe, the American-style labelling is occasionally used. Usually in North America, cars are only sold as two-door or four-door models. This American-style labelling only includes the passengers and drivers doors, and not hatches on hatchbacks and station wagons. This has led to many not understanding that hatches are counted as doors in Europe, whilst the lids to sealed trunks arent. Being doored : Some cyclists refer to colliding with an open car door as being door checked. This usually happens when the cyclist is riding alongside a row of parallel-parked cars, and a driver suddenly opens his or her door immediately in front of the cyclist without first looking to see if it is safe to do so. Major advancements have been made to allow visual recognition of a partially opened vehicle door to provide a degree of warning to cyclists and motor vehicle drivers particularly at night. See US Patent No. 9,469,246.
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