Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Having plural hinge axes
Patent
1992-11-25
1995-05-02
Larson, Lowell A.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Having plural hinge axes
16288, 1602291, E05D 1532
Patent
active
054107792
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to the appliances for hinged joints of suspension members and, more specifically, to the hinges, used to connect such structural components as door wings and window panes, parts of sliding partitions and various moving and transformable structures, including those used in construction, stage sceneries, arrangement of easy compartment replanning, technical and household articles and the like.
PRIOR ART
Known in the art is a hinge comprising stationary and moving parts, connected by means of flexible joints. A joining component represents a spring-loaded rod free to move in the axial direction, joined with tile moving part by means of a flexible joint (the USSR Author's Certificate No. 462922). This hinge does not project beyond the suspension members, but it ensures turning only through 180.degree.. Such a hinge is complicated to produce and has a limited strength.
Known are flexible joints for connecting two suspension members, described, for instance, in the U.S. Pat. Nos. 2,135,280, 2,178,271, 2,694,216. The design of said appliances involves the use of hinge-and-lever mechanisms for connecting with each other joining components, attached to the suspension members. Herein in all the known appliances of the type there is only one axis of symmetry, located between two parts of the mechanism and running through the central axle of rotation, connecting two levers which are provided with additional levers of another length (the U.S. Pat. Nos. 2,133,528, 2,694,216) or additional sliding axles (the U.S. Pat. No. 2,178,271), connecting levers with joining components. Upon turning of the suspension members through any angle, the levers protrude beyond the limits of the suspension members.
In the known hinges, the joining components are linked with each other by four levers, mounted for movement in the plane of rotation of the joining components and connected by means of five axles of rotation normal to the indicated plane of rotation. In this case a complicated hinge-and-lever system is derived which requires production of connecting levers of at least two sizes. The reliability of such a system is also not high. This is a result of a great number of hinge joints in the system (five axles connecting levers with each other and with joining components). Thereto, since levers project beyond the suspension members upon turning, they are subject to bending strain under the effect of the weight of the suspension members, which is extremely undesirable as it requires an increase in the rigidity of the levers either by increasing the cross-section area or by using more rigorous materials for production.
The main drawback of the hinges described above is the possibility of only a limited reciprocal turn of the suspension members and only to one side through 180.degree. (the U.S. Pat. Nos. 2,178,271, 2,694,216)or through 90.degree. (the U.S. Pat. No. 2,135,280).
The fact that levers extend beyond the suspension members during their turning reduces the aesthetic appearance of the hinge and makes it unsafe, especially when it is necessary to mount extra levers in the middle portion of the suspension members for heavy door wings, for instance. Since, as a result of carelessness, people may be injured by protruding parts of the levers.
DISCLOSURE OF THE INVENTION
The invention is based on the object of making a hinge-and-lever mechanism of a hinge for connecting suspension members so as to ensure a turning of one of the suspension members to both sides or a reciprocal turning of suspension members through 180.degree. as well as a turn of one of the suspension members relative to the other through 360.degree. with a minimum number of structural elements of the hinge and their connections and with no projection of the levers beyond the suspension members upon turning the latter, therethrough offering a possibility of self-return of the suspension members to the initial position after the aforeindicated turning of the connected suspension members.
Said object is realized in the
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Esman Igor I.
Gleb Anatoly K.
Gurley Donald M.
Larson Lowell A.
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