Door Handles. Monday , September 10th , 2018 - 18:23:59 PM
Door handle is an ambiguous term, and includes door latches, bars, and knobs. Depending on the geographical location and its place in time, they vary in design, form and materials. The only constant is its function: an attachment used to open or close a door. The earliest doors extant are approximately 5000 years old. Door handles, as devices to manipulate a gateway, became a necessity shortly after the invention of the pivoting mechanism. To most, pivots are simply known as hinges, however, there are nearly as many hinge designs and configurations as there are handles. The simplest handle is a pull - or push - projection on the side opposite the hinge. The placement of the handle is generally where it will provide an optimal mechanical advantage; most doors operating as second class levers. Doors with centre pulls or rings, or a pivot point in a location other than one edge of the door, use first or third class lever principles.
The second facet of the design of door handles is that they should be simple in design both in shape and size so that they are do not protrude and catch people as they pass by. The shape should be such that it is easy to operate, in most kitchens they work by a straight pull with the door being held in position by a magnetic door catch and the design should reflect this. The pattern should not include grooves or crevices where dirt can collect and cause problems.
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