A door hinge has a first leaf assembly having a base frame, a second leaf assembly, and a link assembly connecting the leaf assemblies pivotally to each other. A first end of the link is pivoted on the seat block in the first leaf assembly. The seat block is movable in the base frame for adjustment in a first direction, and a guide formation preventing movement of the seat block in a second direction relative to the base frame.

A hinge has first and second leaf assemblies pivoted on each other and a link assembly interconnecting the first and second leaf assemblies. At least one of the first and second leaf assemblies has upper and lower mounts forming a cavity in which a respective end of the link assembly is pivoted, and at least one of the mounts of the one leaf assembly is formed with a recess opening into the cavity. According to the invention a body of foaming fire-protection material is provided in the recess so that when heated the body expands and fills the cavity with fire-protective foam.

A hinge for a door or window has a door or window and a frame. The hinge has a first and a second hinge leaf pivotably connectable to each other. The first hinge leaf is connectable to the door/window or frame. The second hinge leaf is adjustably connectable to a base in turn connectable to the other of said door/window or frame. The second hinge leaf extends from the base in a first direction and the hinge comprises an adjustment mechanism with a cam and follower configured so that rotating the cam moves the second hinge leaf, relative to the base, in the first direction.

Hinge (10) includes first case (11) having an insertion hole through which a first hinge shaft (17) is inserted and a guide groove guiding first link shaft (23), second case (12) having a first insertion hole and a second insertion hole through which second hinge shaft (19) and third hinge shaft (21) are respectively inserted and a guide groove guiding second link shaft (25), and a link mechanism that maintains intervals between first hinge shaft (17), second link shaft (25) and center shaft (27), intervals between second hinge shaft (19), first link shaft (23), and center shaft (27), and intervals between third hinge shaft (21), first link shaft (23), and center shaft (27), and a first member and a second member are supported with first case (11) and second case (12) respectively such that the first member and the second member are rotatable about a virtual rotation axis.

In one example, a friction hinge includes a link connected to a slide slot of a first base with a movable shaft and connected to a base friction mechanism of a second base with a link friction mechanism, where the link includes a joint positioned between the movable shaft and the link friction mechanism. In another example, a friction hinge system includes a first link connected to a first slide slot of a first base with a first movable shaft and connected to a first base friction mechanism of a second base with a first link friction mechanism, a second link connected to a second slide slot of the second base with a second movable shaft and connected to a second base friction mechanism of the first base with a second link friction mechanism, and a joint shaft to connect the first link to the second link at a joint.

A door hinge has first and second leaf assemblies. The first assembly is formed with a longitudinal guide groove. First and second links are connected to each other for relative pivoting about a vertical axis. The first link is pivoted in a longitudinally displaceable slide in the groove. This slide has a length longitudinally of the guide groove and a width transversely of the guide groove. The ratio of the length to the width of the slide is at least 2:1.

A folding door system comprising a concealed hinge, a first frame, and a second frame. The concealed hinge comprises a first hinge block having a slot formed therein and defining a first sliding portion, a second hinge block having a slot formed therein and defining a second sliding portion, a first linkage having a first connection pivotally secured to the first hinge block and a second connection slidably and pivotally secured within the second sliding portion, and a second linkage pivotally connected to the first linkage and having a third connection pivotally secured to the second hinge block and a fourth connection slidably and pivotally secured within the first sliding portion. The first hinge block is mounted to a side face of the first frame and the second hinge block is mounted to a side face of the second frame.

An adjustable hidden or invisible hinge for mounting a door-panel or window sash to a frame is provided that is useable for either rebated or flush mount applications using the same hinge. This is possible due to the use of two different types of arm systems that connect the frame part of the hinge to the sash or door part. These include a rotational lever arm system that allows for 180° guided rotational movement which is combined with a translational arm system that at the same time superimposes a translational movement of the sash movable body relative to the sash body.

A dampened hinge construction for braking pivoting movement of one structure relative to another. The dampened hinge construction can be utilized in a folding table assembly in an aircraft passenger suite including a base panel and at least one folding panel pivotally attached to the base panel by multiple dampened hinges. Each dampened hinge includes a first assembly attachable to a first structure and a second assembly attachable to a second structure such that the first structure is pivotable relative to the second structure between a first condition and a second condition, such as a folded condition and a planar condition, and at least one damper that brakes pivoting movement of the first structure relative to the second structure as the first condition or second condition is approached.

A dampened hinge construction for braking pivoting movement of one structure relative to another. The dampened hinge construction can be utilized in a folding table assembly in an aircraft passenger suite including a base panel and at least one folding panel pivotally attached to the base panel by multiple dampened hinges. Each dampened hinge includes a first assembly attachable to a first structure and a second assembly attachable to a second structure such that the first structure is pivotable relative to the second structure between a first condition and a second condition, such as a folded condition and a planar condition, and at least one damper that brakes pivoting movement of the first structure relative to the second structure as the first condition or second condition is approached.