An apparatus combining a door hinge and a door closer is provided. In one embodiment, the hinge provides a variable hydraulic damping speed control with spring action closing, as well as an optional stop action. In one embodiment, the hinge of the present invention includes an adjustable compression spring to operate the opening and closing of the door. After the door has closed to approximately 20 degrees or so, the hydraulic component of the door may then control the speed of the door preferably from approximately 20 degrees until closed. The hydraulic component can also be adjusted to vary the speed and force of the door opening and closing. A pair of magnets may be present in the control cylinder of the hinge to provide more force to complete the closing function. Additionally, a stop function allows for the door to remain open and in place in one embodiment.

An apparatus combining a door hinge and a door closer is provided. In one embodiment, the hinge provides a variable hydraulic damping speed control with spring action closing, as well as an optional stop action. In one embodiment, the hinge of the present invention includes an adjustable compression spring to operate the opening and closing of the door. After the door has closed to approximately 20 degrees or so, the hydraulic component of the door may then control the speed of the door preferably from approximately 20 degrees until closed. The hydraulic component can also be adjusted to vary the speed and force of the door opening and closing. A pair of magnets may be present in the control cylinder of the hinge to provide more force to complete the closing function. Additionally, a stop function allows for the door to remain open and in place in one embodiment.

The present invention provides a hinge for opening/closing a door, comprising: left and right plates respectively coupled to the door and a door frame; a main housing formed in the center of any one of the left and right plates; upper and lower auxiliary housings respectively formed at the top and the bottom of the other of the left and right plates; a support member coupled to and linked with the main housing by penetrating into any one of the upper and lower auxiliary housings; a guide member coupled to and linked with the other of the upper and lower auxiliary housings, formed by inserting a portion thereof into the main housing, and having a screw hole for adjustment; an adjustment member having a screw bar for adjustment and a screw bar for fixing, which are formed to have different screwing directions as a right-handed screw and a left-handed screw, and having an adjustment space for interference prevention between the screw bar for adjustment and the screw bar for fixing; a fixing member for fixing the adjustment member by closely attaching, to the guide member through the adjustment space, the screw bar for fixing the adjustment member; and a twist spring connectedly provided between the support member and the adjustment member so as to change the strength of elasticity by the rotation of the adjustment member.

An adjustable-angle positioning and self-closing hinge has two hinge leaves, a fixing pin, a screw knuckle, a screw ring, a fixing base, and an adjusting base; each leaf of the hinge comprises a knuckle and a leaf fastened outside the knuckle; the fixing pin has a threaded pin; the screw knuckle is fastened inside the knuckle of one of the hinge leaves, the fixing base is fastened inside the knuckle of one of the hinge leaves, and the screw knuckle and the fixing base are spaced separately; between the screw knuckle and fixing base in the knuckles of the two hinge leaves are disposed the fixing pin, the screw ring, two magnets, springs, and the adjusting base; the threaded pin of the fixing pin is screwed to the screw knuckle; a first spring abuts between the fixing pin and the front ring edge and gasket of a cup body.

A gate is mounted on a hinge to pivot about a pivot axis between opened and closed positions. A latch is mounted for movement relative to the gate to retain the gate in a closed and locked position

A rebounding pivot module includes a mounting shaft, and a bouncing device set including a barrel having one end tooth shaped, a connecting tube mounted in the other end of the barrel, a connection rod connected to the connecting tube, a socket and a first guide block mounted onto the connection rod, the first guide block having one end beveled, a bouncing barrel mounted around the connecting rod, a second guide block supported on an elastic member in the bouncing barrel and defining therein a guide hole and having one end tooth shaped and abutted at the beveled edge of the first guide block, and a lock device fastened to connection rod that is inserted through the second guide block, the elastic member and the through hole of the bouncing barrel to lock the bouncing barrel to the connection rod.

A pivot hinge includes a spring housing with a central tube, a spring assembly, an upper mounting plate, and a lower mounting plate. The bottom end includes a knurled outer surface. A stop cam is positioned about the knurled outer surface and has an inner surface that conform to the knurled outer surface so that it may be positioned in a plurality of rotatable positions relative to the central tube. The stop cam also has an exterior surface which includes a detent. The different rotational positions of the stop cam upon the knurled outer surface changes the relative position of the detent in relationship to the central tube. A cam follower assembly is coupled to the lower mounting plate and has a cam follower plate with a cam follower that rides upon the stop cam and engages the detent recess to hold the door in an open position.

A hinge device for adjusting a position of a door, includes a first member attached to a main body, a second member rotatable about a rotation axis with respect to the first member, a returner adapted to return the second member to a predetermined position, a base attachable to the door to be swingable about the rotation axis with respect to the second member, and a position adjusting member allowing an angle formed between the second member and the base around the rotation axis to be adjusted.

A hinge device is configured to apply an urging force to a case for returning the case to its neutral position. The hinge device comprises a first and a second contact portion, the case with a cylindrical portion1, a coil spring fitted in the cylindrical portion1 of the case, a shaft inserted inside the coil spring, and a shaft member having a first and a second engaging portion fixed to the shaft in anti-rotatable. The first and second contact portion are formed integral with the cylindrical portion1.

In a hinge device comprising a first member attached to a main body, a second member attachable to a door and rotatable about a vertical rotation axis with respect to the first member, a cam provided in the first member, and a linear damper provided in the second member and actuatable by the cam, the linear damper is disposed below the lower surface of the door.