Hanging the door.WHEN IT COMES TO HANGING A DOOR, everything hinges Hinges may refer to:
[ILLUSTRATION OMITTED] The familiar architectural hinges, seen most often on standard interior and exterior doors, are available in standard and heavy weight construction with ball bearings ball bearings n → roulement m à billes , as well as plain bearings and concealed con·ceal tr.v. con·cealed, con·ceal·ing, con·ceals To keep from being seen, found, observed, or discovered; hide. See Synonyms at hide1. bearings. Continuous hinges are used for heavier doors with higher frequency and for greater safety or a smoother appearance. Pivots are found on heavy doors and where their specific aesthetic benefits are desired. Architectural Hinges Standard weight architectural hinges with plain bearings are the choice for standard weight doors that are used infrequently in·fre·quent adj. 1. Not occurring regularly; occasional or rare: an infrequent guest. 2. , such as on a closet or office door. For medium frequency applications, standard weight hinges with concealed or ball bearings should be used. Heavy weight hinges with ball bearings are the choice for heavy-weight doors or high-frequency usage. [ILLUSTRATION OMITTED] Considerations for determining hinge hinge n. A jointed or flexible device that allows the turning or pivoting of a part, such as a door or lid, on a stationary frame. hinge see hinge joint. weight and bearing type include the weight of the door, frequency of use, frame type and other door hardware. For example, ball bearing or concealed bearing hinges should always be used for doors equipped with door closers and on all fire-rated openings. Heavy-weight and high-frequency doors should always use heavy-weight hinges with either concealed or ball bearings. Hinge size depends on door width, door thickness, weight and clearance. Consult the manufacturer's catalog catalog, descriptive list, on cards or in a book, of the contents of a library. Assurbanipal's library at Nineveh was cataloged on shelves of slate. The first known subject catalog was compiled by Callimachus at the Alexandrian Library in the 3d cent. B.C. for specific guidelines guidelines, n.pl a set of standards, criteria, or specifications to be used or followed in the performance of certain tasks. . Table I gives some guidelines for frequency of door usage. Hinge material will also depend on the application. Plated or painted steel hinges can be used on interior doors in non-corrosive areas, as well as interior labeled doors. Stainless steel stainless steel: see steel. stainless steel Any of a family of alloy steels usually containing 10–30% chromium. The presence of chromium, together with low carbon content, gives remarkable resistance to corrosion and heat. can also be used for the latter application. For interior doors in corrosive corrosive /cor·ro·sive/ (kor-o´siv) producing gradual destruction, as of a metal by electrochemical reaction or of the tissues by the action of a strong acid or alkali; an agent that so acts. atmospheres and for exterior doors, stainless steel, brass or bronze should be selected. Special options available include spring hinges to close lighter weight doors automatically, electified hinges to transfer power from the frame to door-mounted electrified hardware, offset swing-clear designs, and 3- or 5-knuckle construction. [ILLUSTRATION OMITTED] Continuous Hinges Continuous hinges distribute the weight of the door along the entire length of the frame, reducing the high amount of stress usually placed upon the traditional top butt hinge butt hinge n. A hinge composed of two plates attached to abutting surfaces of a door and door jamb and joined by a pin. [From butt2.] Noun 1. . This prevents hinge failure and keeps the door in constant alignment, eliminating the chance of door sag. These characteristics make continuous hinges well-suited for high use/high traffic doors. The design of a continuous hinge also eliminates the gap between the door and frame, which prevents fingers from being pinched pinch v. pinched, pinch·ing, pinch·es v.tr. 1. To squeeze between the thumb and a finger, the jaws of a tool, or other edges. 2. . This makes it safer than traditional hinges, especially in schools or other facilities where small children are present. Two types of continuos hinge are commonly available. Continuous geared hinges, usually made of aluminum, utilize a single gear section for the leaf and a separate gear section for the frame side of the door. The two sections are held together by a full-length cover channel and rotate on a series of bearings. Pin-and-barrel hinges resemble traditional hinges because both types have a center pin and rolled knuckles. However, a continuous pin-and-barrel hinge stretches along the entire length of the frame, so it provides the support, alignment and safety for the full height of the door. These hinges typically are available in stainless steel or primed steel to fit specific applications. As with conventional hinges, continuous hinges are available in a variety of configurations, including full mortise, full surface, swing clear, concealed, and others. Pivots Pivots typically are used with very large or heavy doors because the door rests on the bottom pivot, reducing the stress on the frame and distributing its weight throughout the floor and structure. In some cases pivots also are used as an aesthetic option, especially center and pocket pivots that minimize hardware or door intrusion into an area. Pocket pivots are used on pocket door corridor applications commonly found in hospitals, hotels and high-rise buildings high-rise building Multistory building taller than the maximum height people are willing to walk up, thus requiring vertical mechanical transportation. The introduction of safe passenger elevators made practical the erection of buildings more than four or five stories tall. . They allow the door to be flush To empty the contents of a memory buffer. See buffer. Flush Elizabeth Barrett Browning’s spaniel, subject of a biography. [Br. Lit.: Woolf Flush in Barnhart, 446] See : Dogs (data) flush with the pocket of the corridor when in the open position, which keeps the door out of traffic's way. As with hinges, pivots are available with power transfer capabilities, with conductors that typically carry low-voltage adj. 1. (Electricity) subjected to or capable of operating under relative low voltage, usually considered as no greater than 250 volts. Contrasted with high-voltage nt>. Adj. 1. power and signal circuits to operate and control electrified exit devices or other door-mounted electrified hardware. [ILLUSTRATION OMITTED] The final choice of how a door will be hung can be somewhat subjective, but a thoughtful analysis of door weight, usage and special conditions will narrow the choices down and make the final selection easier. While the basic application conditions must be satisfied, other factors such as aesthetics aesthetics (ĕsthĕt`ĭks), the branch of philosophy that is concerned with the nature of art and the criteria of artistic judgment. , user safety or environmental conditions also may influence the decision. In the end, the correct choice of a hinge or pivot will increase the life of a door and its components, minimize maintenance and repairs, and often help beautify the opening.
GUIDELINES FOR FREQUENCY OF DOOR USAGE:
Build Type Daily Yearly Hinge Type
Usage Usage
High Frequency/ Heavy Weight Door Heavy Weight
Large Department Store Entrance 5,000 1,825,000
Hospital Corridor and Surgical Doors 5,000 1,825,000
Large Office Building Entrance 4,000 1,460,000
School Entrance 1,250 456,250
School Toilet Door 1,250 456,250
Office Stairwell 500 182,500
Office Building Toilet Door 400 146,000
Medium Frequency/ Medium Weight Door Standard
Weight
School Corridor Door 100 36,500
Hospital Consultation Rooms 100 36,500
Office Building Corridor Door 80 29,200
Store Toilet Door 60 21,900
Storage Room 50 18,250
Low Frequency /Light Door Plain Bearing
Residential Entrance 30 10,950
Interior Residential 20 7,300
About the Author: Jon JON Jonah JON Jesus of Nazareth JON Job Order Number JON Johnston Island, US, Outlying Islands (Airport Code) Dilley is the Product Manager of the Trim and Accessories Business Unit for Ingersoll Rand Ingersoll Rand (NYSE: IR) is a diversified industrial firm founded in 1871. The Ingersoll Rand name came into use in 1905 through the combination of Ingersoll-Sargeant Drill Company and Rand Drill Company. Security Technologies. |
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