Systems and devices to control rotational and/or arcuate motion are provided herein. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door by employing a shear thickening fluid. In some examples, a door closure system is configured to replace a conventional door hinge and to control motion of the door by employing two opposing springs.

Systems and devices to control rotational and/or arcuate motion are provided herein. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door by employing a shear thickening fluid. In some examples, a door closure system is configured to replace a conventional door hinge and to control motion of the door by employing two opposing springs.

Systems and devices to control rotational and/or arcuate motion are provided herein. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door. In some examples, a hinge system is configured to replace a conventional door hinge and to control motion of the door by employing a shear thickening fluid. In some examples, a door closure system is configured to replace a conventional door hinge and to control motion of the door by employing two opposing springs.

A hinged device with dampening of the opening (A) and/or closing (C) end strokes of a door of an appliance includes a first element (3) to be fixed to a body and a second element (5) to be fixed to the door of the appliance and hinged by a hinge pin (7) so that the door rotates along the opening (A) and closing (C) end strokes and an intermediate (I) stroke around the hinge pin (7). The device includes a cradle (11) sliding into the first element (3) and a connecting rod (13) connected to the cradle (11) and to the second element (5) for translation, following the door rotation, of the cradle (11) that slidably houses a damper (21) of variable length and provided with sliding members (25, 27) sliding into first slots (31) of the cradle (11) and into second slots (33) of the first element (3).

A hinged device with dampening of the opening (A) and/or closing (C) end strokes of a door of an appliance includes a first element (3) to be fixed to a body and a second element (5) to be fixed to the door of the appliance and hinged by a hinge pin (7) so that the door rotates along the opening (A) and closing (C) end strokes and an intermediate (I) stroke around the hinge pin (7). The device includes a cradle (11) sliding into the first element (3) and a connecting rod (13) connected to the cradle (11) and to the second element (5) for translation, following the door rotation, of the cradle (11) that slidably houses a damper (21) of variable length and provided with sliding members (25, 27) sliding into first slots (31) of the cradle (11) and into second slots (33) of the first element (3).

A fire protection fastening device for fastening a door actuator, includes a frame with a back side, which is to be oriented to a mounting surface, in particular to a door, casing or wall, wherein a mounting axis is defined vertically to the back side. The frame is formed for arrangement between a door actuator and the mounting surface or is an integral component of the door actuator (102), at least one reaction chamber formed in the frame, wherein the frame delimits the reaction chamber on the entire circumference. The reaction chamber is open on the back side and/or on a front side of the frame opposite the back side. The device further includes a drive element made from thermally intumescent material disposed in the reaction chamber and, when activated, is formed for pushing away the door actuator from the mounting surface.

A door closer diagnostics system including a door closer, a server, and a mobile device having a display and at least one sensor. The mobile device is configured to (i) generate, by the at least one sensor, motion data indicative of motion of the door as the door is moved from an open position to a closed position, and (ii) transmit the motion data to the server. The server is configured to analyze the motion data to (i) determine a duration the door was in each of a plurality of door movement zones between the open and closed positions, (ii) determine at least one adjustment to the door closer for a successful installation of the door closer based on the duration the door was in each of the door movement zones, and (iii) transmit at least one installation instruction corresponding with the at least one adjustment to the mobile device.

A door closer diagnostics system including a door closer, a server, and a mobile device having a display and at least one sensor. The mobile device is configured to (i) generate, by the at least one sensor, motion data indicative of motion of the door as the door is moved from an open position to a closed position, and (ii) transmit the motion data to the server. The server is configured to analyze the motion data to (i) determine a duration the door was in each of a plurality of door movement zones between the open and closed positions, (ii) determine at least one adjustment to the door closer for a successful installation of the door closer based on the duration the door was in each of the door movement zones, and (iii) transmit at least one installation instruction corresponding with the at least one adjustment to the mobile device.

A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed; an auxiliary liquid chamber having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has a substantially circular surface forming a wall portion of the main liquid chamber. An opening portion at one end of the orifice passage is formed in the circular surface. The opening portion is formed to extend from an outer edge portion to a central portion of the circular surface.

A door closer diagnostics system including a door closer, a server, and a mobile device having a display and at least one sensor. The mobile device is configured to (i) generate, by the at least one sensor, motion data indicative of motion of the door as the door is moved from an open position to a closed position, and (ii) transmit the motion data to the server. The server is configured to analyze the motion data to (i) determine a duration the door was in each of a plurality of door movement zones between the open and closed positions, (ii) determine at least one adjustment to the door closer for a successful installation of the door closer based on the duration the door was in each of the door movement zones, and (iii) transmit at least one installation instruction corresponding with the at least one adjustment to the mobile device.