Abstract:
Two hinge members are pivotally mounted about edges of a clamp. Thrust bearings are disposed in recesses in both hinge members for preventing relative movement between the hinge members along the clamp length. Antirotation portions of the bearings resist rotation of the bearings caused by torque produced by the hinge members on the bearings. In one embodiment, the clamp has a longitudinal key that is engaged within a keyway in the bearings that prevents bearing rotation. In another embodiment, the bearings have a longitudinal free extension on at least one side of a bearing body. The extensions increase the effective length of the bearings, limiting rotation. The extensions are preferably meshable with other bearings for transferring torque between adjacent bearings, or bearings may overlap the extensions. More preferably, the extensions are lockable to other bearings. The clamp may have notches extending between its walls and a clamp base such that the clamp base remains unaltered upon bending of the walls. Additionally, the thrust bearings may have lateral free extensions that increase the width of the bearing and that have a smaller width once mounted within the clamp to reduce gaps therebetween.
Abstract:
A pinned hinge comprising with first and second hinged members respectively including first and second leaves. The leaves have knuckles that define first bores that extend through the knuckles in a longitudinal direction. A pin is received within the bores of both leaves, pivotably joining the leaves. A cover, defining a longitudinal channel, surrounds the knuckles, protecting them. The leaves are operatively connected to the cover such that pivotal movement of the leaves displaces the cover with respect to the pin. Shanks connecting the knuckles to leaf bodies preferably have at least a double bend to retard interference between the cover and the leaves during pivoting. In one embodiment, the knuckles have gear sectors meshed with racks in the cover. In another embodiment, leaf springs operatively connect the cover to the leaves. Further embodiments include a seal disposed for sealing the cover to the hinged members when the hinge is closed. End caps block the ends of the cover. Preferably, one of these caps has a lubricant port for feeding lubricant into the channel. A cross guide, such as a cross pin, may be provided to guide the cover with respect to the pin. Some embodiments have a biasing member that pivotally biases the leaves in response to a relative position of the cover with respect to the pin.
Abstract:
A pinless hinge structure having two hinge members which are rotatable relative to each other through an angle greater than 180 degrees. The hinge members are rotatably joined along their adjacent longitudinal edges by mutually intermeshed gear segments which are maintained in rotatable association by a clamp member. Each hinge member is further configured with a leg segment extending outwardly from each gear segment. The leg segments and the clamp member are configured to allow the hinge members to rotatably traverse a greater than 180 degree arcuate path of travel relative to each other.
Abstract:
A pinless hinge structure having two hinge members which are rotatably joined for movement between open and closed positions. The hinge members have longitudinally extending gear segments which intermesh with an interior surface on a clamp member such that each hinge member moves about an axis of rotation which shifts as a function of the position of the hinge members. A thrust bearing assembly inhibits relative longitudinal movement between the hinge members and the clamp member.
Abstract:
A thrust bearing assembly for a pinless hinge structure having two longitudinally extending hinge members which are rotatory joined to each other and a longitudinally extending clamp member. The thrust bearing assembly includes a thrust bearing member having multiple bearing support surfaces which are longitudinally joined to each other. Each bearing surface is preferably non metallic and extends laterally across adjacent longitudinal edges of the hinge members to inhibit relative longitudinal movement between the hinge members.
Abstract:
A pinless hinge structure including a pair of longitudinally extending hinge members which are rotatably joined to each other and a longitudinally extending clamp member for maintaining said hinge member in rotatable association relative to each other. A torsion spring engages each hinge member and provides a self-operating feature to the hinge structure.
Abstract:
A multiple piece thrust bearing assembly for a hinge structure having two hinge members and a clamp member. The hinge members are rotatably joined along their adjacent longitudinally extending edges by intermeshing gear segments which are held together by the clamp member to permit smooth and uniform movement of the hinge members. The multi-piece thrust bearing assembly of the present invention comprises a thrust bearing member and bearing inserts arranged between the thrust bearing member and each of the hinge members for improving durability of the thrust bearing assembly and, thereby, the hinge structure. The thrust bearing member of the bearing assembly is formed from a non-metallic material which extends laterally across the hinge members to inhibit their longitudinal movement relative to each other. A first or upper pair of non-metallic bearing inserts are arranged between an upper bearing surface of the thrust bearing member and each of the hinge members to reduce frictional sliding contact therebetween. A second or lower pair of non-metallic bearing inserts are arranged between a lower bearing surface of the thrust bearing and each of the hinge members to further reduce frictional sliding contact therebetween.
Abstract:
A continuous, hinge having a longitudinally supported portion and a longitudinally free end. Supports in the supported portion prevent relative sliding between pivotable hinge members. Relative longitudinal sliding between hinge members in the free end is unrestricted. In a pinless embodiment, geared hinge members are meshed and held together by a clamp. The supports comprise thrust bearings that engage laterally extending surfaces in recesses in gear segments of the hinge members. In a pinned embodiment, a continuous pin extends through aligned knuckles. The knuckles of one hinge member in the supported portion longitudinally support adjacent knuckles of the other hinge member.
Abstract:
A gear hinge has a bearing fitted into opposed notches which open out of the meshed gear segments for the leaves. The bearing has blocks provided with knuckles which interlock to prevent the blocks, and the leaves as well, from moving longitudinally with respect to each other.
Abstract:
A thrust bearing assembly for a hinge structure having two geared hinge members and a clamp member. The geared hinge members are maintained in rotatable, intermeshing relation along their adjacent longitudinally extending edges by the clamp members to permit smooth and uniform movement of the hinge structure. The thrust bearing assembly of the present invention includes a pair of non-metallic interconnected inserts arranged in side-by-side order to extend laterally across and inhibit relative longitudinal movements between the hinge members. The interconnected inserts are configured to facilitate their insertion in and removal from the hinge structure while maintaining the hinge members in mesh.