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 hydraulic hinge comprising a fixed element anchorable to a stationary support structure and a movable element anchorable to a closing element. The fixed and movable elements are mutually coupled in such a way that the latter rotates with respect to the former about a first longitudinal axis between an open position and a closed position. One of the fixed element and the movable elements includes at least one working chamber defining a second longitudinal axis, which comprises at least one portion which includes: a plunger member sliding along the second axis and a working fluid to hydraulically dampen the movement of the movable element. The plunger member is mutually connected with one of the fixed element and the movable element so that the rotation of the latter corresponds to the sliding of the former.

A hinge includes a fixed seat mounted on the cabinet, a movable seat mounted on the door, and a linkage assembly hinged between the fixed and movable seats. One of the movable or fixed seat is provided with a guide groove that cooperates with the linkage assembly, at least one portion of the guide groove is a curved groove. This configuration allows for the control of the door's movement trajectory according to specific needs.

A hinge for recessed installation between a door frame and a door panel that has first and second housings adapted for recessing in the door frame and an edge of the door panel, a pair of links having ends pivoted in the housings and pivoted together about a vertical axis extending in a vertical direction perpendicular to mutually perpendicular first and second horizontal directions, and two supports in the second housing in which the respective ends of the links are pivoted. A vertical connector body to which the supports are fixed is limitedly vertically movable in the first housing along with the supports and links. Respective pairs of guide faces on the connector body spaced apart in the vertical direction flank each of the supports.

A hydraulic hinge comprising a fixed element anchorable to a stationary support structure and a movable element anchorable to a closing element. The fixed and movable elements are mutually coupled in such a way that the latter rotates with respect to the former about a first longitudinal axis between an open position and a closed position. One of the fixed element and the movable elements includes at least one working chamber defining a second longitudinal axis, which comprises at least one portion which includes: a plunger member sliding along the second axis and a working fluid to hydraulically dampen the movement of the movable element. The plunger member is mutually connected with one of the fixed element and the movable element so that the rotation of the latter corresponds to the sliding of the former and vice-versa.

A vehicle pop-up hood device includes: a hinge base that is fixed to a vehicle body; a first arm that is pivotably connected to the hinge base; and a second arm that is fixed to a vehicle rear side end portion of a front hood and is pivotably connected to the first arm. Further, the vehicle pop-up hood device includes: an actuator that is provided between the first arm and the second arm, and that, by being operated, pivots the second arm with respect to the first arm; and a connecting portion that, at a time of completion of operation of the actuator, is set in an operating state in which the connecting portion restricts movement of the second arm with respect to the hinge base.

A concealed hinge for a turn-tilt window with a fixed frame and leaf includes of a pair of scissors with a first arm and second arm, that are connected by a central hinge and which are hingeably connected by a first end to a mounting slat that is intended to be mounted on the frame, and have a hinge at a second end for coupling to the leaf. The first arm is connected by its first end to the mounting slat with a fixed frame hinge with a peg fastened to the mounting slat and the second arm is connected by its first end to the mounting slat by a shiftable frame hinge with a peg that is shiftably affixed in a guide slot of the mounting slat, whereby in the closed situation of the scissors, the mounting slat serves as a support for the tilting movement of these scissors.

A hinge has two housings adapted to be recessed in a door frame and a door edge and a link assembly extending between the housings and having ends pivoted in the housings. A vertically shiftable support body in one of the housings has a row of teeth extending horizontally in a first direction. A bearing block sitting on the support body forms a pivot for the respective end of the link assembly. A screw extending through the bearing block and threaded into the support body is tightenable to bear on and fix the bearing block on the support body. A gear captured in the seat of the bearing block meshes with the row of teeth and is rotatable to shift the bearing block on the support body in the first horizontal direction in an untightened condition of the screw.

A vehicle pop-up hood device includes: a hinge base that is fixed to a vehicle body; a first arm that is pivotably connected to the hinge base; and a second arm that is fixed to a vehicle rear side end portion of a front hood and is pivotably connected to the first arm. Further, the vehicle pop-up hood device includes: an actuator that is provided between the first arm and the second arm, and that, by being operated, pivots the second arm with respect to the first arm; and a connecting portion that, at a time of completion of operation of the actuator, is set in an operating state in which the connecting portion restricts movement of the second arm with respect to the hinge base.

A pivoting mechanism, including a first bracket, a second bracket, at least one first crank, and at least one second crank, is provided. The first bracket connecting a first body of an electronic device has a first slot. The second bracket connecting a second body has a second slot. The first crank has a first end slidably and rotatably coupled to the first slot, a second end pivoted to the second bracket, and a first pivoting portion. The second crank has a third end slidably and rotatably coupled to the second slot, a fourth end pivoted to the first bracket, and a second pivoting portion. The first and second pivoting portions are connected to form a rotation center, such that the first and second cranks are rotated about the rotation center and the first and second ends slide in the first and second slots respectively.