Assembly for moving a door of a piece of furniture

• US 10,519,707 B2
• Filed: 11/30/2016
• Issued: 12/31/2019
• Est. Priority Date: 11/30/2015
• Status: Active Grant

• Current Assignee: Hettich-Oni GmbH & Co KG
• Original Assignee: Hettich-Oni GmbH & Co KG
• Inventors: Cappellotto, Leandro
• Primary Examiner(s): Redman, Jerry E
• Application Number:
  US15/778,417
• Publication Number:
  US 20180347251A1
• Time in Patent Office: 1,126 Days
• Field of Search: 49246, 49247, 49250, 49251
• CPC Class Codes: E05D 15/40 supported on arms movable in vertical planes
• CPC Class Codes: E05D 15/46 with two pairs of pivoted arms
• CPC Class Codes: E05D 3/12 with two parallel pins and one arm
• CPC Class Codes: E05F 1/14 with double-acting springs, e.g. for closing and opening or checking and closing no material
• CPC Class Codes: E05F 15/614 operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05Y 2800/238 of springs and transmissions
• CPC Class Codes: E05Y 2800/242 arranged in parallel relationship
• CPC Class Codes: E05Y 2900/20 for furnitures, e.g. cabinets

Abstract

An assembly for moving a door of a piece of furniture, the assembly being adapted to move between a retracted configuration and an extended configuration so as to drive the door respectively between a closing position and an opening position. In particular, the assembly comprises a first arm adapted to be rotatably coupled with a first end to the side around a first rotational axis, a second arm articulated with a first end to a second end of the first arm around a second rotational axis, a third arm articulated to a second end of the second arm around a third rotational axis, the third arm being able to be attached to the door, and guiding means for guiding the roto-translatory motion of the door between the closing position and the opening position.

Claims

1. An assembly (100) for moving a door (A) of a piece of furniture (M) comprising at least one side (S), said assembly (100) being adapted to move between a retracted configuration and an extended configuration via a driving and retaining means so as to drive said door (A) respectively between a closing position, wherein said door (A) lies essentially on a vertical plane, and an opening position, wherein said door (A) is cantilevered with respect to said side (S), according to a roto-translatory motion, wherein the assembly further comprises

a first arm (1) adapted to be rotatably coupled with a first end (1A) to said side (S) around a first rotational axis,

a second arm (8) articulated with a first end (8A) to a second end (1B) of said first arm (1) around a second rotational axis,

a third arm (10) articulated to a second end (8B) of said second arm (8) around a third rotational axis, said third arm (10) being configured to be connected with said door (A),

guiding means (6, 11) being provided for guiding said roto-translatory motion of said door (A) between said closing position and said opening position,

wherein the driving and retaining means (7) is arranged and configured for driving the opening movement of said door (A) and retaining said door (A) in the opening position when said assembly (100) is in the extended configuration, and returning said door (A) towards the closing position and retaining said door (A) in the closing position when said assembly (100) is in the retracted configuration,

wherein the driving and retaining means (7) comprise preloaded elastic means hinged with a first end (7A) coaxially to said first arm (1) around said first rotational axis, and with an opposite end (7B) to said second arm (8), and

wherein in a passage between said retracted configuration and said extended configuration, said assembly (100) rotates around said first rotational axis, forming a fixed center of rotation, said second and third rotational axes forming instant centers of rotation, movable together with a respective one of the arms (1, 8, 10).

2. The assembly (100) according to claim 1, wherein at least one of the first rotational axis, the second rotational axis or the third rotational axis is provided by a pin.

3. The assembly (100) according to claim 1, wherein said elastic means comprise a plurality of helical springs, housed inside a containing member (9) formed by a first and a second containing portions (9A, 9B), separated from each other and arranged at respective ends (7A, 7B) of said plurality of helical springs.

4. The assembly (100) according to claim 1, further comprising adjusting means (70) for adjusting the preload of said elastic means, comprising at least one adjusting screw (71) integral with first abutment means (72) and coaxially insertable from a first end (7A) of said elastic means (7), said adjusting screw (71) being adapted to cooperate with a corresponding engaging body (73) coaxially insertable from said second end (7B) of said elastic means (7) and integral with second abutment means (91) to compress or decompress said elastic means (7) between said first and said second abutment means (72, 91).

5. The assembly (100) according to claim 1, wherein said guiding means (6, 11) comprise a first tie rod (6) articulated with a first end (6A) about a fourth rotational axis associable with said side (S) and with the opposite end (6B) being connectable to said second arm (8) around a fifth rotational axis, and a second tie rod (11) articulated with a first end (11A) to the second end (1B) of said first arm (1) about a sixth rotational axis, and with the opposite end (11B) being connected to said first end (10A) of said third arm (10) about a seventh rotational axis.

6. The assembly (100) according to claim 5, wherein at least one of the fourth rotational axis, the fifth rotational axis or the sixth rotational axis is provided by a pin.

7. The assembly (100) according to claim 1, wherein said first arm (1), said second arm (8) and said third arm (10) are formed by box-shaped rigid hollow bodies, housing at least said guiding means (6,11) and said driving and retaining means (7).

8. The assembly (100) according to claim 1, comprising dampening means (15) for dampening and controlling movement of said door (A) in the passage from said opening position to the closing position.

9. The assembly (100) according to claim 1, wherein actuating means (200) are associated with said assembly (100) through transmission means (150) to facilitate movement of said door (A), said actuating means (200) comprising at least one electric motor (21, 22) associated with said side (S), said transmission means (150) comprising at least one toothed wheel (18, 19) adapted to rotatably transmit motion imparted by said at least one electric motor (21, 22) to a corresponding toothed wheel (20) mounted coaxially to said first rotational axis and integral with said first arm (1).

10. An arrangement comprising the assembly according to claim 1, and further comprising the piece of furniture (M) provided with the at least a side (S) and the door (A).