A refrigerator includes a cabinet forming a storage space; a door configured to open and close the cabinet; a hinge configured to connect the door and the cabinet and to support the door to be rotatable; and a damping mechanism providing a damping force to the door while the door rotates in a closing direction after opening the door, in which the damping force of the damping mechanism varies during a door closing process.

A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body to rotate between the open and the closed positions of the shutter; a cam element unitary with the pivot; a plunger element sliding in the working chamber and having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

A hinge device includes a fixed element, a movable element and a slider housed in a working chamber and coupled to a pivot, so that a rotation of the movable element corresponds to the sliding of the slider. The working chamber includes an end cap and a working fluid and is divided into first and second variable volume compartment by a plunger member of the slider. A hydraulic circuit includes a first duct passing through an end cap that is in fluid communication with the first and second compartments and has an elongated tubular wall extending within the working chamber, and the interspace between the working chamber and the elongated tubular wall. The plunger member is tightly inserted in the elongated tubular wall, which includes a first peripheral conduit having a first and a second port in fluid communication with the first and respectively second compartment through the first duct.

A door closer capable of adjusting door closing speed, includes a pneumatic cylinder on the door frame, a hydraulic cylinder on the door, and a lever. One end of the lever is movably connected to the pneumatic cylinder, and the other end is connected to the hydraulic cylinder. The pneumatic cylinder includes a sliding rail, and a sliding member cooperated with the sliding rail. A hermetic chamber is formed by the sliding member and the sliding rail. An adjusting valve, for adjusting the air exhaust of the hermetic chamber, is provided on a wall of the hermetic chamber.

The present invention discloses a spindle with speed adjustment and automatic return device, included set up one resilient component, one cylinder, also one spindle and one cam of the same spindle on a base, between the cam and the resilient component set up one slider component, and one first rack set up on the slider component, both side of the cylinder set up with one cylinder rod and one flow adjustment valve, and one second rack set up on the cylinder rod, one gear set meshed in between the first rack and the second rack; the cam can follow spindle rotation and drive slider component move to the resilient component, to bring the first rack through gear set to drive the cylinder rod by the second rack, to make the cylinder through flow adjustment valve to suck the medium.

A bearing arrangement for a door, in particular for refrigerators or freezers, comprises a bearing pin for rotatably bearing the door, a closing device by means of which the door can be moved over a certain pivoting region in the closing direction through the force of a force accumulator, and a damper for damping a pivoting movement of the door over at least one pivoting region, and the closing device and the damper are oriented in a substantially perpendicular plane with respect to the axis of rotation of the bearing pin, wherein, to move the closing device, a first curved guide which can be moved by the bearing pin is provided and, to move the damper, a second curved guide which can be moved by the bearing pin is provided. As a result, the bearing arrangement can have a particularly compact design, the bearing arrangement being used in particular in a refrigerator or freezer.

A hydraulic door closer is disclosed. The hydraulic door closer may include a top cap surrounded by an O-ring that is located at the top of the hydraulic door closer housing opposite a spindle to seal the hydraulic fluid within the housing. In addition to or in lieu of the top cap design, the door closer may include a locking washer to secure the valves to the housing; epoxy and an O-ring at the interface between the top cap and the housing of the door closer; use of a dual-walled rubber seal around the spindle; use of dual O-rings on each valve stems; use of caps that are made of the same material as the housing instead of aluminum and use of epoxy on the end caps; and/or use of backcheck with an adjustable spring.

A pneumatic door closer includes a rotary energy-storing mechanism including a housing and a driving mechanism. The driving mechanism includes a cylinder, a second piston assembly and a sealing element, the sealing element is in an air tight connection with the cylinder and the second piston assembly, to form a closed space filled with high pressure gas in the cylinder. The second piston assembly drives the closed space into a first air chamber and a second air chamber in communication with each other. The driving mechanism also includes a first piston assembly connected to the second piston assembly. The pneumatic door closer also includes a transmission mechanism having one end received in the housing and another end connected to the door frame.

A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body; a cam element unitary with the pivot; a plunger element sliding in the working chamber, the plunger element having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The hinge body has a substantially plate-like shape. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body to rotate between the open and the closed positions of the shutter; a cam element unitary with the pivot; a plunger element sliding in the working chamber and having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.