By john. Door. Published at Monday, November 28th, 2016 - 17:24:13 PM.
Car Door General design : Unlike other types of doors, the exterior side of the vehicle door contrasts in its design and finish from its interior side (the interior part is typically equipped with a door card (in British English) or a door panel (in American English) that has decorative and functional features. The exterior side of the door is designed of steel or other material like the rest of the vehicles exterior. In addition, its decorative appearance, typically colored with a design, is intended to match with the rest of the vehicles exterior, the central purpose being to add to the overall aesthetic appeal of the vehicle exterior. A vehicle typically has two types of doors: front doors and rear doors. Loosely related are: vehicle hoodsand vehicle trunk lids. There are also doors known as a hatch (see door categorization below) A major safety issue with opened vehicle doors is the assumption at night vehicle doors can provide a warning to other vehicle drivers. Unfortunately it is estimated over 50 percent of all vehicle doors have nothing applied to the interior of the vehicle door such as light and/or a reflector. Unfortunately these devices need not meet any US Federal Motor Vehicle Safety Standards since no standards apply. To make matters worse it was reported by the Fatal Accident Reporting System that in the year 2014 not one single death was reported with a person outside the opened vehicle door at night in the entire United States of America. New safety technology such as providing to the lower interior edge of the vehicle door a highly reflective tape provides the ability of other vehicle drivers to see the opened vehicle door at night ( see US Patent No. 9,308,859 for details including diagrams of a typical application ).
Types of mechanism Door : Hinged doors Most doors are hinged along one side to allow the door to pivot away from the doorway in one direction, but not the other. The axis of rotation is usually vertical. In some cases, such as hinged garage doors, the axis may be horizontal, above the door opening. Doors can be hinged so that the axis of rotation is not in the plane of the door to reduce the space required on the side to which the door opens. This requires a mechanism so that the axis of rotation is on the side other than that in which the door opens. This is sometimes the case in trains or airplanes, such as for the door to the toilet, which opens inward. Most doors are hinged along one side to allow the door to pivot away from the doorway in one direction, but not the other. The axis of rotation is usually vertical. In some cases, such as hinged garage doors, the axis may be horizontal, above the door opening. Doors can be hinged so that the axis of rotation is not in the plane of the door to reduce the space required on the side to which the door opens. This requires a mechanism so that the axis of rotation is on the side other than that in which the door opens. This is sometimes the case in trains or airplanes, such as for the door to the toilet, which opens inward. Rotating doors A revolving door has several wings or leaves, generally four, radiating from a central shaft, forming compartments that rotate about a vertical axis. A revolving door allows people to pass in both directions without colliding, and forms an airlock maintaining a seal between inside and out. A pivot door, instead of hinges, is supported on a bearing some distance away from the edge, so that there is more or less of a gap on the pivot side as well as the opening side. In some cases the pivot is central, creating two equal openings. High-speed door A high-speed door is a very fast door some with opening speeds of up to 4 m/s, mainly used in the industrial sector where the speed of a door has an effect on production logistics, temperature and pressure control. high-speed clean room doors are used in pharmaceutical industries for the special curtain and stainless steel frames. They guarantee the tightness of all accesses. The powerful high-speed doors have a smooth surface structure and no protruding edges. Therefore, they can be easily cleaned and depositing of particles is largely excluded. High-speed doors are made to handle a high number of openings, generally more than 200,000 a year. They need to be built with heavy-duty parts and counterbalance systems for speed enhancement and emergency opening function. The door curtain was originally made of PVC, but was later also developed in aluminium and acrylic glass sections. High Speed refrigeration and cold room doors with excellent insulation values was also introduced with the Green and Energy saving requirements. In North America, the Door and Access Systems Manufacturing Association (DASMA) defines high-performance doors as non-residential, powered doors, characterized by rolling, folding, sliding or swinging action, that are either high-cycle (minimum 100 cycles/day) or high-speed (minimum 20 inches(508 mm)/second), and two out of three of the following: made-to-order for exact size and custom features, designed to be able to withstand equipment impact (break-away if accidentally hit by vehicle) or designed to sustain heavy usage with minimal maintenance. Automatic Door Automatically opening doors are powered open and closed either by electricity, spring, or both. There are several methods by which an automatically opening door is activated: A sensor detects traffic is approaching. Sensors for automatic doors are generally: A pressure sensor – e.g., a floor mat which reacts to the pressure of someone standing on it. An infrared curtain or beam which shines invisible light onto sensors; if someone or something blocks the beam the door is triggered open. A motion sensor which uses low-power microwave radar for the same effect. A remote sensor (e.g. based on infrared or radio waves) can be triggered by a portable remote control, or is installed inside a vehicle. These are popular for garage doors. A switch is operated manually, perhaps after security checks. This can be a push button switch or a swipe card. The act of pushing or pulling the door triggers the open and close cycle. These are also known as power-assisted doors. In addition to activation sensors automatically opening doors are generally fitted with safety sensors. These are usually an infrared curtain or beam, but can be a pressure mat fitted on the swing side of the door. The purpose of the safety sensor is to prevent the door from colliding with an object in its path by stopping or slowing its motion.A mechanism is set in modern automatic doors to ensure that door will be in open state in case of power failure. Others Up-and-over or overhead doors are often used in garages. Instead of hinges it has a mechanism, often counterbalanced or sprung, that allows it to be lifted so that it rests horizontally above the opening. A roller shutter or sectional overhead door is one variant of this type. A tambour door or roller door is an up-and-over door made of narrow horizontal slats and rolls up and down by sliding along vertical tracks and is typically found in entertainment centres and cabinets. Inward opening doors are doors that can only be opened (or forced open) from outside a building. Such doors pose a substantial fire risk to occupants of occupied buildings when they are locked. As such doors can only be forced open from the outside, building occupants would be prevented from escaping. In commercial and retail situations manufacturers have included in the design a mechanism that allows an inward opening door to be pushed open outwards in the event of an emergency (which is often a regulatory requirement). This is known as a breakaway feature. Pushing the door outward at its closed position, through a switch mechanism, disconnects power to the latch and allows the door to swing outward. Upon returning the door to the closed position, power is restored. Rebated doors, a term chiefly used in Britain, are double doors having a lip or overlap (i.e. a Rabbet) on the vertical edge(s) where they meet. Fire-rating can be achieved with an applied edge-guard or astragal molding on the meeting stile, in accordance with the American Fire door. Evolution Door is a trackless door that moves in the same closure level as a sliding door. The system is an invention of the Austrian artist Klemens Torggler. It is a further development of the Drehplattentür [de] that normally consists of two rotatable, connected panels which move to each other when opening.
Spacecraft People have developed a variety of self-actuating, self-locking hinge designs for spacecraft deployable structures such as solar array panels, synthetic aperture radar antennas, booms, radiators, etc.
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.
Any content, trademark’s, or other material that might be found on the PapihillsTour.com website that is not PapihillsTour.com’s property remains the copyright of its respective owner/s. In no way does PapihillsTour.com claim ownership or responsibility for such items, and you should seek legal consent for any use of such materials from its owner.