Dampened hinge

• US 9,995,075 B2
• Filed: 09/06/2017
• Issued: 06/12/2018
• Est. Priority Date: 09/09/2016
• Status: Active Grant

• Current Assignee: Nuova Star SpA
• Original Assignee: Nuova Star SpA
• Inventors: Vanini, Marco
• Primary Examiner(s): Mah, Chuck
• Application Number:
  US15/696,652
• Publication Number:
  US 20180073291A1
• Time in Patent Office: 279 Days
• CPC Class Codes: E05D 3/18 with sliding pins or guides
• CPC Class Codes: E05F 1/1246 with a coil spring perpendicular to the pivot axis
• CPC Class Codes: E05F 3/02 with pneumatic piston brakes rotary type E05F3/14
• CPC Class Codes: E05F 3/10 with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
• CPC Class Codes: E05F 3/20 in hinges
• CPC Class Codes: E05F 5/00 Braking devices, e.g. checks; Stops; Buffers construction of pneumatic or liquid braking devices E05F3/00; braking devices, buffers or end stops on drawers for tables, cabinets or like furniture A47B88/473; combined with devices for holding wings open E05C17/00; devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing E05C17/04
• CPC Class Codes: E05F 5/02 specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
• CPC Class Codes: E05F 5/10 with piston brakes
• CPC Class Codes: E05Y 2600/53 Snapping
• CPC Class Codes: E05Y 2900/30 for domestic appliances
• CPC Class Codes: E05Y 2900/308 for ovens

Abstract

A hinge for doors of appliances, including a box-shaped element and a first lever pivoted on the box-shaped element by a first pin; one of the box-shaped element or the first lever being fixable to a frame and the other fixable to a door, to make the door tiltably movable relative to the frame between a closed position and an open position; a first elastic device supported by the box-shaped element for applying an elastic action on the first lever, a rod for connecting the first lever to the first elastic device, the connecting rod being positioned in a slidable fashion inside the box-shaped element; a damping member for applying a damping action during the reciprocal motion of the first lever and the box-shaped element, in the proximity of reaching the closed position; a cartridge containing the hydraulic damping member, the cartridge being fixed to the box-shaped element.

Claims

1. A hinge for a door of an electrical household appliance, comprising:

a box-shaped element;

a pivot;

a first lever pivotably supported on the box-shaped element by the pivot;

one of either the box-shaped element or the first lever being fixable to a frame of the household electrical appliance and the other of either the box-shaped element or the first lever being fixable to the door, to make the door tiltably movable relative to the frame between a closed position and an open position;

a first elastic device supported by the box-shaped element for applying an elastic action on the first lever,

a connecting link connecting the first lever to the first elastic device, the connecting link being slidably positioned inside the box-shaped element;

a hydraulic damper for applying a damping action during reciprocal motion of the first lever and the box-shaped element in a proximity of the closed position;

a cartridge containing the hydraulic damper, the cartridge being fixed to the box-shaped element;

an actuating mechanism for actuating the hydraulic damper, the actuating mechanism including a rocker lever supported by the connecting link and a contact portion fixed to the box-shaped element, the rocker lever including first arm for engaging and actuating the hydraulic damper and a second arm for engaging the contact portion, wherein the reciprocal motion of the first lever and the box-shaped element in the proximity of the closed position causes a relative motion between the contact portion and the hydraulic damper such that the contact portion causes movement of the rocker lever to actuate the hydraulic damper.

2. The hinge according to claim 1, wherein the connecting link is box-shaped and is housed slidably inside the box-shaped element.

3. The hinge according to claim 2, and further comprising a rocker pin, wherein the connecting link has side walls facing each other, wherein the rocker pin is fixed to the connecting link side walls facing each other and the rocker lever is pivotably mounted on the rocker pin.

4. The hinge according to claim 1, and further comprising a second elastic device for applying an elastic action on the first lever, wherein the connecting link supports the second elastic device.

5. The hinge according to claim 3, wherein the cartridge includes respective lateral tabs for centering relative to the box-shaped element.

6. The hinge according to claim 5, wherein the cartridge includes a base, wherein the base includes two elements for snap-on fastening inserted in housings formed on the box-shaped element.

7. The hinge according to claim 6, wherein the contact portion is formed on the box-shaped element.

8. The hinge according to claim 6, wherein the contact portion is formed on the cartridge and fixed to the box-shaped element.

9. The hinge according to claim 1, wherein the first elastic device is a spring.

10. The hinge according to claim 9, wherein the connecting link is box-shaped and is housed slidably inside the box-shaped element.

11. The hinge according to claim 10, wherein the cartridge includes respective lateral tabs for centering relative to the box-shaped element.

12. The hinge according to claim 11, wherein the cartridge includes a base, wherein the base includes two elements for snap-on fastening inserted in housings formed on the box-shaped element.

13. The hinge according to claim 12, wherein the contact portion is formed on the box-shaped element.

14. The hinge according to claim 12, wherein the contact portion is formed on the cartridge and fixed to the box-shaped element.

15. The hinge according to claim 1, wherein the cartridge includes respective lateral tabs for centering relative to the box-shaped element.

16. The hinge according to claim 15, wherein the cartridge includes a base, wherein the base includes two elements for snap-on fastening inserted in housings formed on the box-shaped element.

17. The hinge according to claim 1, wherein the cartridge includes a base, wherein the base includes two elements for snap-on fastening inserted in housings formed on the box-shaped element.

18. The hinge according to claim 1, wherein the contact portion is formed on the box-shaped element.

19. The hinge according to claim 1, wherein the contact portion is formed on the cartridge and fixed to the box-shaped element.

20. The hinge according to claim 1, and further comprising a rocker pin, wherein the connecting link has side walls facing each other, wherein the rocker pin is fixed to the connecting link side walls facing each other and the rocker lever is pivotably mounted on the rocker pin.