Abstract: A patch fitting for a glass door includes a mount for being mounted on a floor, a shaft connected with the mount, a clamping seat pivotally connected with the shaft, and a piston unit installed inside the clamping seat. When the glass door is sweeping to open or close, the clamping seat will turn along with the sweeping movement of the glass door about the shaft and the piston unit will be pushed by an eccentric cam of the shaft to press the hydraulic oil contained in the clamping seat so as to provide a damping resistance in response to the sweeping movement of the glass door. The patch fitting can be easily installed on the floor by a simple work.

Abstract: Provided is a heating cooker which allows a door on a cooking chamber to be opened without direct handling of the door by a user. The heating cooker includes a body having a cooking chamber defined therein, a door hingably mounted to the body to open and close the cooking chamber, a door holder positioned in the body to hold the door and keep the cooking chamber closed by the door, and a hinge part connected between the door and the body to guide rotation of the door such that when the door is released from the door holder, the door is automatically opened.

Abstract: A door closer, in particular a hinge door closer, having a free-swing function, including a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and which is embodied as a sliding-coupling which exclusively transmits compressive forces between the closer spring and the piston assembly, and a hydraulic lock compartment adapted to lock the closer spring.

Abstract: A door closer comprises a spindle journaled in a housing and connected to turn with a door. Upon rotation of the spindle, a cam carried by the spindle effects linear movement of a slide assembly relative to the housing. A piston is connected with the slide assembly. Passages are provided in the housing to permit flow of fluid in the housing in response to movement of the piston. A spring assembly disposed outside of the housing is connected to the piston. Rotation of the spindle and cam during door opening moves the slide assembly, thereby compressing the spring assembly for storing energy for urging the piston and the slide assembly in the opposite door closing direction.

Abstract: An example furniture hinge includes a saddle supporting the damping cylinder that engages a first mounting edge of the supporting arm from behind. A locking element supported movably on the saddle has a laterally protruding mounting lug, which in a locking position engages a second mounting edge of the supporting arm from behind. The second mounting edge is oriented counter to the first mounting edge.

Abstract: A door closer comprises a spindle journaled in a housing and connected to turn with a door. Upon rotation of the spindle, a cam carried by the spindle effects linear movement of a slide assembly relative to the housing. A piston is connected with the slide assembly. Passages are provided in the housing to permit flow of fluid in the housing in response to movement of the piston. A spring assembly disposed outside of the housing is connected to the piston. Rotation of the spindle and cam during door opening moves the slide assembly, thereby compressing the spring assembly for storing energy for urging the piston and the slide assembly in the opposite door closing direction.

Abstract: A door closer includes a casing having a hydraulic cylinder in which a coupling block is received, and a first tunnel and a second tunnel are in communication with the hydraulic cylinder. A passage is in communication between the first and second tunnels so as to allow the hydraulic oil to flow between the two tunnels. The coupling block includes a pivot shaft for being connected to a door. A first rod and a second rod are pivotably connected to the coupling block and respectively inserted in the first and second tunnels. A threaded rod is connected to a distal end of the first rod and a first spring is mounted to the first rod and the threaded rod. A sleeve is threadedly engaged with the threaded rod and an operation rod is securely connected to the sleeve so that when rotating the operation rod, the first spring is adjusted by moving the sleeve relative to the threaded rod.

Abstract: A closure mechanism for hinged devices having an upper member and a lower member. The closure mechanism includes a track disposed on the upper member and at least one support arm pivotally attached to the lower member. A biasing element is adapted to urge the support arm to engage the upper member and urge it to pivot to an open configuration. The arm includes a contact element that engages the track such that an upper end of the arm moves along the track as the upper member pivots to an open position. The arm includes a hook that engages a positive stop to prevent over-rotation of the arm. In other embodiments of the closure mechanism, the arm is pivotally attached to the upper member and moves against the lower member, and the biasing element extends between the arm and either the upper member or the lower member.

Abstract: A door closer includes a closer casing, a pivot unit, and a length-variable damping cylinder. The pivot unit includes a pivot axle, a cam member, and a cam follower member. The pivot axle has a drive end portion that extends into and that is retained rotatably in the closer casing, and a coupling end portion that extends out of the closer casing. The cam member is mounted co-rotatably on the drive end portion of the pivot axle. The cam follower member is disposed in the closer casing, and is acted upon by the cam member. The damping cylinder is disposed in the closer casing, and has one end coupled to the cam follower member and an opposite end anchored to the closer casing.

Abstract: A door closer includes a casing having a recess in which a base is received, and a first cylinder and a second cylinder are in communication with the recess. A passage is in communication between the first and second cylinders so as to allow the hydraulic oil to flow between the two cylinders. The base includes a driving shaft for being connected to a door. A first rod and a second rod are pivotably connected to the base and respectively inserted in the first and second cylinders. A threaded rod is connected to a distal end of the first rod and a first spring is mounted to the first rod and the threaded rod. A sleeve is threadedly engaged with the threaded rod and an operation rod is securely connected to the sleeve so that when rotating the operation rod, the first spring is adjusted by moving the sleeve relative to the threaded rod.

Abstract: An automatic closing door hinge, an automatic closing door mechanism, and a hinge of the automatic closing door mechanism, for smoothly opening a door or closing, with damping, a door. For example, an automatic door closing mechanism has a hinge having a pair of wing plates one of which has a cylinder in a circular cylindrical form received therein a piston, the other wing plate fixing an upper portion of an operation rod engaged with the piston, the piston being to be advanced and retracted through the operation rod associatively with a rotation of the other wing plate. The automatic closing door mechanism comprises a cam formed on the piston. An engaging part provided in the operation rod and movable in the cam. The cam and the engaging part engaging between the piston and the operation rod. A sphere arranged in a recess formed in an outer surface of the piston. A recess groove formed lengthwise in the cylinder. The sphere rolls along the recess groove, to allow the piston to slide within the cylinder.

Abstract: The present invention relates to an improved structure of hydraulic door closer for easier operation and effectively eliminate oil leakage that allows fast adjustment of the of the spring load to the status of expected door closing speed by having provided on one connecting rod in a linkage base a pressure regulation mechanism for varying spring load, and having a rotation rod used to drive the spring in said mechanism to forthwith expose outside a flange of a hydraulic cylinder so to facilitate spring load regulation directly by turning of the rotation rod.

Abstract: A damper for a pivot door has a piston movably received inside the damper and having a first channel and a second channel respectively and selectively communicating with a space full of hydraulic oil, such that the movement of the piston is able to be slowed by the interchange of the communication of the first channel and the space and the second channel and the space. Thus, the movement of the pivot door is slowed.

Abstract: A door closer actuated by an eccentric cam plate includes a one-piece piston that is displaced axially by the rotation of the eccentric cam plate. The one-piece piston includes a damping piston portion located axially on one side of the eccentric cam plate and a spring support element located on the opposite side of the eccentric cam plate. The one-piece piston incorporates in a unitary piece both functions of a separate damping piston and spring support element to increase the relative efficiency of the door closer.

Abstract: Disclosed herein is a device for closing swinging doors which is mounted in a door frame and has an elongated housing with a spindle rotatably mounted in one end thereof by which the door closer is secured to a door. A cylinder is interiorly formed in the other end of the housing and has a piston disposed therein. The piston rod extends from the cylinder and is secured at its extended end to a pair of flat carrier plates which are slidably mounted within the housing about the spindle and biased to maintain the door in a closed position. Camming surfaces are carried by the spindle which cooperate with a pair of cam followers carried by the carrier plates to hold the door in an open position. Valve means communicating with the cylinder are provided to permit fluid flow from one end of the cylinder to the other about the piston for controlling the rate of travel of the piston within the cylinder and thereby regulate the rate of movement of the door as it is being opened, closed and latched.