JP-2026514537-A - Rocking furniture component with power synchronization mechanism

Abstract

The furniture components may include a seat base, a seat assembly, a leg rest platform, a drive rod, and a sequencing mechanism. The seat assembly is movable relative to the seat base. The leg rest platform is coupled to the seat assembly. The drive rod is rotatable relative to the seat assembly, and the rotation of the drive rod moves the seat assembly and the leg rest platform. The sequencing mechanism includes a cam attached to the drive rod and a driven wheel attached to the seat assembly. The cam is configured to prevent the seat assembly from moving between a first reclining position and a second reclining position while the seat assembly moves between a first tilting position and a second tilting position, and while the leg rest platform moves between a first leg rest position and a second leg rest position.

Inventors

• ラポワント，ラリー・ピィ

Assignees

• レイジーボーイ・インコーポレイテッド

Dates

Publication Date

20260511

Application Date

20240417

Priority Date

20230504

Claims (20)

1. Furniture components, Seat base and, The furniture member further comprises a seat assembly that is movable relative to the seat base, the seat assembly being movable between a first reclining position and a second reclining position, the seat assembly being movable between a first inclined position and a second inclined position, and the furniture member further comprises A leg rest platform is coupled to the seat assembly and is movable between a first leg rest position and a second leg rest position, The seat assembly is further provided with a drive rod that is rotatable relative to the seat assembly, the rotation of which moves the seat assembly from the first inclined position to the second inclined position and the leg rest platform from the first leg rest position to the second leg rest position, and the furniture member further, The sequencing mechanism includes a cam attached to the drive rod and a driven wheel attached to the seat assembly, A furniture member wherein the cam is configured to prevent the seat assembly from moving between the first reclining position and the second reclining position while the seat assembly moves between the first inclined position and the second inclined position, and while the leg rest platform moves between the first leg rest position and the second leg rest position.
2. The furniture member according to claim 1, wherein the rotation of the drive rod causes the first surface of the cam to contact the driven wheel, and the subsequent rotation of the drive rod causes the second surface of the cam to contact the driven wheel.
3. When the first surface of the cam contacts the driven wheel, the sequencing mechanism is configured to prevent the seat assembly from reclining from the first reclining position to the second reclining position. The furniture member according to claim 2, wherein when the second surface of the cam contacts the driven wheel, the sequencing mechanism is configured to allow the seat assembly to recline from the first reclining position to the second reclining position.
4. The furniture member according to claim 1, further comprising a motor that supplies power to the rotation of the drive rod.
5. The operation of the motor controls the movement of the seat assembly to achieve an intermediate position between the first reclining position and the second reclining position, and an intermediate position between the first tilt position and the second tilt position. The furniture member according to claim 4, wherein the operation of the motor controls the movement of the leg rest platform to achieve an intermediate position between the first leg rest position and the second leg rest position.
6. A rail attached to the motor, A sliding carriage attached to the drive rod and coupled to the rail, The furniture member according to claim 4, further comprising a support rod that is rotatable with respect to the seat assembly and coupled to the motor.
7. The motor drives the sliding carriage to slide along the rail, and at the same time rotates the drive rod, The furniture member according to claim 6, wherein the rotation of the drive rod simultaneously moves the seat assembly between the first inclined position and the second inclined position, and simultaneously moves the leg rest platform between the first leg rest position and the second leg rest position.
8. The motor drives the rail to slide against the sliding carriage, and at the same time rotates the support rod. The furniture member according to claim 6, wherein the rotation of the support rod moves the seat assembly between the first reclining position and the second reclining position.
9. The furniture member according to claim 1, further comprising a tilting linkage mechanism including a clevis driven and engaged with the drive rod, and a wheel support panel rotatably mounted on the seat base.
10. The furniture member according to claim 9, wherein the rotation of the drive rod drives the clevis to rotate the wheel support panel, and the rotation of the wheel support panel moves the seat assembly between the first and second inclined positions relative to the seat base.
11. The aforementioned inclined linkage mechanism is The inclined linkage mechanism includes a first link rotatably mounted to the clevis and the wheel support panel, the first link being movable independently of the clevis, and further, The furniture member according to claim 9, comprising a second link rotatably mounted to the wheel support panel, wherein the second link has a driven wheel extending from the second link.
12. The seat assembly is pivotable between a first pivot position and a second pivot position, and as the seat assembly moves between the first pivot position and the second pivot position, the first and second links and the wheel support panel rotate simultaneously. The furniture member according to claim 11, wherein when the leg rest platform is in the first leg rest position, the seat assembly is pivotable between the first pivot position and the second pivot position.
13. The furniture member according to claim 12, wherein when the driven wheel contacts the wheel support panel, the seat assembly is in the first swinging position and is restricted from further swinging in the rearward direction.
14. The furniture member according to claim 12, wherein when the first link contacts the clevis, the seat assembly is in the second swinging position and is restricted from further swinging in the forward direction.
15. Furniture components, Seat base and, The furniture member further comprises a seat assembly that is movable relative to the seat base, the seat assembly being movable between an upright position and a reclined position, the seat assembly being movable between a reference tilt position and a reclined position, and the furniture member further The seat assembly is coupled to a leg rest platform, the leg rest platform being movable between a retracted position and an extended position, and the furniture member further comprises The seat assembly is provided with a rotatable drive rod, the rotation of which moves the leg rest platform from the stowed position to the deployed position, and the furniture member further, The seat assembly is provided with a rotatable support rod, the rotation of which moves the seat assembly between the upright position and the reclining position, and the furniture member further, The inclined linkage mechanism includes a set of linkages attached to the drive rod and the support rod, a first cam attached to the drive rod, a first driven wheel movable to make rolling contact with the first cam, and a wheel support panel rotatably mounted on the seat base. A furniture member wherein the inclined linkage mechanism is configured to allow the seat assembly to move simultaneously between the reference inclined position and the reclined position while the leg rest platform moves between the stowed position and the deployed position, and the seat assembly moves between the upright position and the reclined position.
16. The sequencing mechanism further includes a second cam attached to the drive rod and a second driven wheel attached to the seat assembly, The furniture member according to claim 15, wherein the second cam includes a first surface, a second surface, and a third surface.
17. The furniture member according to claim 16, wherein when the first surface of the second cam contacts the second driven wheel, the second cam is configured to prevent the seat assembly from moving between the upright position and the reclined position.
18. The furniture member according to claim 16, wherein when the second surface of the second cam contacts the second driven wheel, the second cam is configured to allow the seat assembly to move between the upright position and the reclined position.
19. The furniture component according to claim 15, further comprising a motor that supplies power to the rotation of the drive rod.
20. The operation of the motor controls the movement of the seat assembly to achieve an intermediate position between the upright position and the reclining position, and an intermediate position between the reference tilt position and the reclined position. The furniture member according to claim 19, wherein the operation of the motor controls the movement of the leg rest platform to achieve an intermediate position between the stowed position and the deployed position.

Description

Cross-reference to related applications: This application claims priority to U.S. Patent Application No. 18/143,240, filed on 4 May 2023. The entire disclosure of the above application is incorporated herein by reference. Field: This disclosure relates to furniture components, and more specifically to rocking furniture components having a power synchronization mechanism. Background This section provides background information related to this disclosure and is not necessarily prior art. Furniture components such as chairs, sofas, two-seater sofas, and modular furniture may include a backrest that can move between an upright and reclined position relative to the seat base using a reclining mechanism. In addition, some furniture components include a leg rest mechanism that allows the occupant to move the leg rest platform between a retracted and extended position to support the occupant's legs and/or feet. Furthermore, some furniture components include a rocker mechanism that allows the occupant to swing the furniture component between a reclined and a forward-tilted position. However, the individual operation of the recliner, leg rest, and rocker mechanisms, as well as the number of adjustable positions, can be cumbersome for the person seated in the furniture. This disclosure provides a synchronization mechanism that synchronizes the recliner, tilt, and leg rest movements of the furniture component, allowing the person seated to easily find a desired comfortable position without individually operating the recliner, leg rest, and rocker mechanisms. Overview This section provides a general overview of this disclosure and is not a comprehensive disclosure of its entire scope or all of its features. This is a perspective view of a furniture component showing a seat assembly at a first synchronized position relating to the principle of this disclosure.This is a side view of a furniture component showing the seat assembly in a rearward tilted and rearward swinging position.This is a side view of a furniture component showing the seat assembly in a forward-tilted and forward-swinging position.This is a side view of a furniture component showing the seat assembly in a second synchronized position.This is a side view of a furniture component showing the seat assembly in the third synchronized position.This is a side view of a furniture component showing the seat assembly in the fourth synchronized position.This is a partial perspective view of the synchronization mechanism for furniture components.This is a partial perspective view of the synchronization mechanism.This is an exploded view of the synchronization mechanism.This is a perspective view of the drive actuator assembly of the synchronous mechanism, with the synchronous mechanism in the position shown in Figure 1.This is a perspective view of the drive actuator assembly of the synchronous mechanism, with the synchronous mechanism in the position shown in Figure 6.This is a perspective view of the inclined linkage assembly of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 1.This is a perspective view of the inclined linkage assembly of the synchronization mechanism, with the synchronization mechanism in the positions shown in Figures 2 and 6.This is a perspective view of the inclined linkage assembly of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 3.This is a perspective view of the leg rest mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 1.This is a perspective view of the leg rest mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 6.This is a perspective view of the sequencing mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 1.This is a perspective view of the sequencing mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 6.This is a side view of the inclined linkage assembly of a furniture component, with the inclined linkage assembly in the position shown in Figure 1.This is a side view of the inclined linkage assembly of a furniture member, with the inclined linkage assembly in the position shown in Figures 2 and 6.This is a side view of the inclined linkage assembly of a furniture component, with the inclined linkage assembly in the position shown in Figure 3.This is a perspective view of the synchronization mechanism in the position shown in Figure 1.This is a perspective view of the synchronization mechanism in the position shown in Figure 4.This is a perspective view of the synchronization mechanism in the position shown in Figure 5.This is a perspective view of the synchronization mechanism in the position shown in Figure 6.This is a perspective view of another furniture component showing a seat assembly at a