Rocking furniture component with power synchronization mechanism
The synchronization mechanism in furniture components addresses the cumbersome operation of recliner, legrest, and rocker mechanisms by integrating motor-powered synchronized movements for reclining, tilting, and leg rest positions, improving user comfort.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LA Z BOY INC
- Filing Date
- 2024-04-17
- Publication Date
- 2026-05-11
AI Technical Summary
Operating recliner, legrest, and rocker mechanisms in furniture individually can be cumbersome and require multiple adjustments to find a comfortable position.
A synchronization mechanism that integrates a seat assembly, leg rest platform, and drive rod, allowing synchronized movement between reclining, tilting, and leg rest positions using a cam and driven wheel configuration powered by a motor.
Facilitates easy finding of a comfortable position by synchronizing reclining, tilting, and leg rest movements without manual operation, enhancing user convenience.
Smart Images

Figure 2026514537000001_ABST
Abstract
Description
Technical Field
[0001] Cross - Reference to Related Applications This application claims priority to U.S. Patent Application No. 18 / 143,240, filed May 4, 2023. The entire disclosure of the above application is incorporated herein by reference.
[0002] Field The present disclosure relates to furniture members, and more particularly to locking furniture members having a power synchronization mechanism.
Background Art
[0003] Background This section provides background information related to the present disclosure and is not necessarily prior art.
[0004] Furniture members such as chairs, sofas, loveseats, modular furniture, etc. may include a backrest that is movable between an upright position and a reclining position relative to the seat bottom using a recliner mechanism. In addition, some furniture members include a legrest mechanism that allows a seated person of the furniture member to move a legrest platform between a retracted position and an extended position to support the seated person's legs and / or feet. Further, some furniture members include a rocker mechanism that allows a seated person of the furniture member to rock the furniture member between a reclined position and a forward - tilted position.
[0005] However, operating the recliner mechanism, legrest mechanism, and rocker mechanism individually, and the number of adjustable positions can be cumbersome for the seated person of the furniture member. The present disclosure provides a synchronization mechanism that synchronizes the reclining, tilting, and legrest movements of a furniture member to easily find a desired comfortable position without the seated person having to operate the recliner mechanism, legrest mechanism, and rocker mechanism individually.
Summary of the Invention
[0006] Summary This section provides a general overview of this disclosure and does not constitute a comprehensive disclosure of its entirety or all of its features. [Means for solving the problem]
[0007] This disclosure provides a furniture component which may include a seat base, a seat assembly, a leg rest platform, a drive rod, and a sequencing mechanism. The seat assembly may be movable relative to the seat base. The seat assembly may be movable between a first reclining position and a second reclining position, and may be movable between a first tilting position and a second tilting position. The leg rest platform may be coupled to the seat assembly and be movable between a first leg rest position and a second leg rest position. The drive rod may be rotatable relative to the seat assembly. Rotation of the drive rod may move the seat assembly from the first tilting position to the second tilting position, and may move the leg rest platform from the first leg rest position to the second leg rest position. The sequencing mechanism may include a cam attached to the drive rod and a driven wheel attached to the seat assembly. The cam may be configured to prevent the seat assembly from moving between the first and second reclining positions while the seat assembly is moving between the first and second tilting positions, and while the leg rest platform is moving between the first and second leg rest positions.
[0008] In some configurations of the furniture components described in the above paragraph, 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.
[0009] In some configurations of the furniture components described in any of the paragraphs above, 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. When the second surface of the cam contacts the driven wheel, the sequencing mechanism is configured to allow the seat assembly to reclining from the first reclining position to the second reclining position.
[0010] In some configurations of the furniture components described in any of the paragraphs above, the furniture component includes a motor that powers the rotation of the drive rod.
[0011] In some configurations of the furniture components described in any of the paragraphs above, 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 tilting position and the second tilting position. The motor also 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.
[0012] In some configurations of the furniture components described in any of the paragraphs above, the furniture component includes a rail, a sliding carriage, and a support rod. The rail is attached to the motor. The sliding carriage is attached to the drive rod and is coupled to the rail. The support rod is rotatable relative to the seat assembly and is coupled to the motor.
[0013] In some configurations of the furniture components described in any of the paragraphs above, the motor drives the sliding carriage to slide along the rail and simultaneously rotates the drive rod. The rotation of the drive rod simultaneously moves the seat assembly between the first tilt position and the second tilt position, and simultaneously moves the leg rest platform between the first leg rest position and the second leg rest position.
[0014] In some configurations of the furniture components described in the paragraph above, the motor drives the rail to slide relative to the sliding carriage and simultaneously rotates the support rod. The rotation of the support rod moves the seat assembly between the first reclining position and the second reclining position.
[0015] In some configurations of the furniture member described in any of the paragraphs above, the furniture member includes a tilt linkage mechanism. The tilt linkage mechanism includes a clevis driven-engaged to the drive rod and a wheel support panel rotatably mounted to the seat base.
[0016] In some configurations of the furniture components described in any of the paragraphs above, 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 inclined position and the second inclined position relative to the seat base.
[0017] In some configurations of the furniture components described in any of the paragraphs above, the inclined linkage mechanism includes a first link rotatably mounted to the clevis and the wheel support panel. The first link is movable independently of the clevis. The inclined linkage mechanism includes a second link rotatably mounted to the wheel support panel, the second link having a driven wheel extending from the second link.
[0018] In some configurations of the furniture components described in any of the paragraphs above, the seat assembly is pivotable between a first pivot position and a second pivot position. 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. 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.
[0019] In some configurations of the furniture components described in any of the paragraphs above, when the driven wheel contacts the wheel support panel, the seat assembly is in the first swinging position and is restricted from swinging further in the rearward direction.
[0020] In some configurations of the furniture components described in any of the paragraphs above, when the first link contacts the clevis, the seat assembly is in the second swinging position and is restricted from swinging further forward.
[0021] This disclosure provides a furniture component which may include a seat base, a seat assembly, a leg rest platform, a drive rod, a support rod, and a tilt linkage mechanism. The seat assembly may be movable relative to the seat base. The seat assembly may be movable between an upright position and a reclined position, and may be movable between a reference tilt position and a reclined position. The leg rest platform may be coupled to the seat assembly. The leg rest platform may be movable between a retracted position and an extended position. The drive rod may be rotatable relative to the seat assembly. Rotation of the drive rod moves the leg rest platform from the retracted position to the extended position. The support rod may be rotatable relative to the seat assembly. Rotation of the support rod moves the seat assembly between the upright position and the reclined position. The tilt linkage mechanism may include 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 roll into contact with the first cam, and a wheel support panel rotatably mounted on the seat base. The tilt linkage mechanism may be configured to allow the seat assembly to move simultaneously between the reference tilt 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.
[0022] In some configurations of the furniture components described in the above paragraph, the furniture components may include a sequencing mechanism. The sequencing mechanism includes a second cam attached to the drive rod and a second driven wheel attached to the seat assembly. The second cam includes a first surface, a second surface, and a third surface.
[0023] In some configurations of the furniture member of any of the above paragraphs, 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 reclining position.
[0024] In some configurations of the furniture member of any of the above paragraphs, 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 reclining position.
[0025] In some configurations of the furniture member of any of the above paragraphs, the furniture member may include a motor that supplies power to the rotation of the drive rod.
[0026] In some configurations of the furniture member of any of the above paragraphs, 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 rear tilt position. The operation of the motor controls the movement of the legrest platform to achieve an intermediate position between the storage position and the deployed position.
[0027] In some configurations of the furniture member of any of the above paragraphs, the furniture member may include a rail attached to the motor and a sliding carriage attached to the drive rod.
[0028] In some configurations of the furniture member of any of the above paragraphs, the motor first drives the sliding carriage to slide along the rail and simultaneously rotates the drive rod. The motor then drives the rail to slide relative to the sliding carriage and simultaneously rotates the support rod.
[0029] In some configurations of the furniture components described in any of the paragraphs above, the set of linkages of the inclined linkage mechanism includes a first link coupled to the support rod and a second link coupled to the drive rod.
[0030] In some configurations of the furniture components described in any of the paragraphs above, the rotation of the first cam causes the first cam to contact the first driven wheel, and at the same time drives the set of linkages to move the seat assembly from the reference tilt position to the rear tilt position.
[0031] In some configurations of the furniture components described in any of the paragraphs above, the seat assembly is sequenced to move from a first synchronized position to a second synchronized position, and from a third synchronized position to a fourth synchronized position. When the seat assembly moves between the first synchronized position and the fourth synchronized position, the seat assembly moves between the reference tilted position and the reclined position, and the leg rest platform moves between the retracted position and the extended position. When the seat assembly moves between the second synchronized position and the fourth synchronized position, the seat assembly moves between the upright position and the reclined position.
[0032] In some configurations of the furniture components described in any of the paragraphs above, the seat assembly is pivotable between a rearward pivot position and a forward pivot position. As the seat assembly moves between the rearward pivot position and the forward pivot position, the linkage set and the wheel support panel rotate simultaneously. When the leg rest platform is in the retracted position, the seat assembly pivots freely between the forward pivot position and the rearward pivot position. When the leg rest platform is in the deployed position, the seat assembly is restricted from pivoting between the forward pivot position and the rearward pivot position. In some configurations of the furniture components described in any of the paragraphs above, when the first driven wheel contacts the wheel support panel, the seat assembly is in the rearward pivot position and is restricted from further pivoting in the rearward direction.
[0033] In some configurations of the furniture components described in any of the paragraphs above, when the first driven wheel contacts the first cam, the seat assembly is in the forward swing position and is restricted from swinging further forward.
[0034] Further areas of applicability will become apparent from the descriptions provided herein. The descriptions and examples in this summary are for illustrative purposes only and are not intended to limit the scope of this disclosure.
[0035] The drawings described herein are intended to illustrate selected embodiments only, and not to limit the scope of this disclosure, and do not represent all possible realizations. [Brief explanation of the drawing]
[0036] [Figure 1] 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. [Figure 2] This is a side view of a furniture component showing the seat assembly in a rearward tilted and rearward swinging position. [Figure 3] This is a side view of a furniture component showing the seat assembly in a forward-tilted and forward-swinging position. [Figure 4] This is a side view of a furniture component showing the seat assembly in a second synchronized position. [Figure 5] This is a side view of a furniture component showing the seat assembly in the third synchronized position. [Figure 6] This is a side view of a furniture component showing the seat assembly in the fourth synchronization position. [Figure 7] This is a partial perspective view of the synchronization mechanism for furniture components. [Figure 8] This is a partial perspective view of the synchronization mechanism. [Figure 9] This is an exploded view of the synchronization mechanism. [Figure 10] 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. [Figure 11] 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. [Figure 12] 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. [Figure 13] 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. [Figure 14] 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. [Figure 15] 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. [Figure 16] 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. [Figure 17] This is a perspective view of the sequencing mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 1. [Figure 18] This is a perspective view of the sequencing mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 6. [Figure 19] 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. [Figure 20] 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. [Figure 21] 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. [Figure 22] This is a perspective view of the synchronization mechanism in the position shown in Figure 1. [Figure 23] This is a perspective view of the synchronization mechanism in the position shown in Figure 4. [Figure 24] This is a perspective view of the synchronization mechanism in the position shown in Figure 5. [Figure 25] This is a perspective view of the synchronization mechanism in the position shown in Figure 6. [Figure 26] This is a perspective view of another furniture component showing a seat assembly at a first synchronized position relating to the principle of this disclosure. [Figure 27] This is a perspective view of a furniture component showing the seat assembly in a first synchronized position. [Figure 28] This is a side view of a furniture component showing the seat assembly in the rearward swinging position. [Figure 29] This is a side view of a furniture component showing the seat assembly in a forward-swinging position. [Figure 30] This is a side view of a furniture component showing the synchronization mechanism at the second synchronization position. [Figure 31] This is a side view of a furniture component showing the synchronization mechanism at the third synchronization position. [Figure 32] This is a side view of a furniture component showing the synchronization mechanism at the fourth synchronization position. [Figure 33] This is an exploded view of the synchronization mechanism for furniture components. [Figure 34] This is a perspective view of the inclined linkage mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 26. [Figure 35] This is a perspective view of the inclined linkage mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 28. [Figure 36] This is a perspective view of the inclined linkage mechanism of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 29. [Figure 37] This is a perspective view of the sequencing assembly of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 25. [Figure 38] This is a perspective view of the sequencing assembly of the synchronization mechanism, with the synchronization mechanism in the position shown in Figure 28. [Figure 39] 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 26. [Figure 40] 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 28. [Figure 41]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 29. [Figure 42] This is a perspective view of the synchronization mechanism in the position shown in Figure 26. [Figure 43] This is a perspective view of the synchronization mechanism in the position shown in Figure 30. [Figure 44] This is a perspective view of the synchronization mechanism in the position shown in Figure 31. [Figure 45] This is a perspective view of the synchronization mechanism in the position shown in Figure 32. [Modes for carrying out the invention]
[0037] The corresponding reference numbers indicate the corresponding parts throughout several figures in the drawing. Detailed explanation Here, exemplary embodiments will be described in more detail with reference to the attached drawings.
[0038] Exemplary embodiments are provided to fully convey the completeness and scope of this disclosure to those skilled in the art. Numerous specific details, such as examples of specific components, apparatus, and methods, are provided to facilitate a full understanding of the embodiments of this disclosure. It will be apparent to those skilled in the art that these specific details are not required, that the exemplary embodiments may be embodied in many different forms, and that they should not be construed as limiting the scope of this disclosure. In some exemplary embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
[0039] The terms used herein are intended solely to describe specific exemplary embodiments and are not intended to be limiting. The singular forms “a,” “an,” and “the” used herein may also be intended to include the plural, unless the context clearly indicates otherwise. The words “comprises,” “comprising,” “including,” and “having” are inclusive; they indicate the presence of the features, elements, steps, actions, elements, and / or components described, but do not exclude the presence or addition of one or more other features, integers, steps, actions, elements, components, and / or groups thereof. The method steps, processes, and actions described herein should not be interpreted as necessarily having to be performed in a specific order described or illustrated, unless specifically identified as such. It should also be understood that additional or alternative steps may be used.
[0040] When an element or layer is described as "on top of," "engaged to," "connected to," or "bonded to" another element or layer, it may be immediately on top of the other element or layer, directly engaged to, directly connected to, or directly bonded to, or intervening to, another element or layer. Conversely, when an element is described as "immediately on top of," "directly engaged to," "directly connected to," or "directly bonded to," an intervening element or layer is not required. Other words used to describe relationships between elements (e.g., "between" vs. "directly between," "adjacent" vs. "directly adjacent") should be interpreted similarly. As used herein, the term "and / or" encompasses any combination of one or more of the associated enumerated items.
[0041] The terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, layers, and / or sections, but these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used solely to distinguish one element, component, region, layer, or section from another region, layer, or section. When used herein, the terms "first," "second," etc., and other numerical terms do not implicitly indicate a sequence or order unless specifically stated in the context. Accordingly, the following first element, component, region, layer, or section may be referred to as the second element, component, region, layer, or section without departing from the teaching of the exemplary embodiments.
[0042] Spatially relative terms (such as “inside,” “outside,” “down,” “below,” “bottom,” “up,” and “top”) may be used herein to facilitate the description of the relationship between one element or feature shown in a figure and another element or feature. Spatially relative terms may be intended to encompass various orientations of the device in use or operation, in addition to the orientation shown in the figure. For example, if the device in the figure is turned upside down, an element described as being “below” or “below” another element or feature would become “above” that other element or feature. Thus, the exemplary term “down” may encompass both upward and downward orientations. The device may be oriented in a different direction (rotated 90 degrees or oriented in any other direction), and the spatially relative descriptors used herein may be interpreted accordingly.
[0043] Referring to Figures 1 to 25, a furniture component 50 is provided which may include a seat base 60 and a seat assembly 52. The furniture component 50 may also include a drive actuator mechanism 54, a pair of tilt linkage mechanisms 55, a leg rest mechanism 56, and a pair of sequencing mechanisms 58 (collectively referred to as the synchronous mechanism). As will be described in more detail below, the seat assembly 52 is movable relative to the seat base 60. The seat assembly 52 can swing forward and backward between a first swing position or reference swing position (Figure 1), a second swing position or rearward swing position (Figure 2), and a third swing position or forward swing position (Figure 3). In addition, the seat assembly 52 can move between a first synchronous position (Figure 1), a second synchronous position or first intermediate position (Figure 4), a third synchronous position or second intermediate position (Figure 5), and a fourth synchronous position (Figure 6).
[0044] The seat assembly 52 can swing between a first swing position, a second swing position, and a third swing position, independently of the seat assembly 52 moving between a first synchronous position, a second synchronous position, a third synchronous position, and a fourth synchronous position. More specifically, the swinging of the seat assembly 52 between the first swing position, the second swing position, and the third swing position is performed manually by a seated person sitting in the seat assembly 52. The movement of the seat assembly 52 between the first synchronous position, the second synchronous position, the third synchronous position, and the fourth synchronous position is performed electrically by a motor (e.g., motor 126). When the seat assembly 52 moves from the first synchronized position (Figure 1) to the fourth synchronized position (Figure 6), the seat assembly 52 tilts from the reference tilted position to the reclined position, reclines from the upright position or the first reclined position to the reclined position or the second reclined position, and the leg rest mechanism 56 moves from the retracted position to the extended position. When the seat assembly 52 returns from the fourth synchronized position (Figure 6) to the first synchronized position (Figure 1), the seat assembly 52 tilts from the reclined position to the reference tilted position, returns from the reclined position to the upright position, and the leg rest mechanism 56 returns from the extended position to the retracted position.
[0045] Referring to Figures 1 to 6, the seat assembly 52 may include a seat frame assembly 62, a backrest assembly 64, a seat bottom assembly 66, and a rocker assembly 68 (Figures 4 to 6). The seat frame assembly 62 may include a pair of armrest frames 70, a pair of side support panels 72, and a front support panel 74. The armrest frames 70 may be positioned on both sides of the seat bottom assembly 66. The side support panels 72 may be attached to the armrest frames 70. The front support panel 74 may extend between the pair of side support panels 72.
[0046] As shown in Figure 1, the backrest assembly 64 may be rotatably coupled to the seat bottom assembly 66 by a pair of linkages 78, allowing the backrest assembly 64 to rotate relative to the seat bottom assembly 66. The backrest assembly 64 may include a pair of spaced-apart first panels 80 and a second panel 82 extending transversely between the pair of first panels 80.
[0047] The seat bottom assembly 66 may include a pair of first support beams 84 and a pair of second support beams 86. Each of the first support beams 84 may extend between a front end 85 and a rear end 87 opposite the front end 85. The front end 85 may be positioned near the front support panel 74, and the rear end 87 may be positioned near the backrest assembly 64. One of the second support beams 86 may be attached to the pair of first support beams 84 at the front end 85. The other of the second support beams 86 may be attached to the pair of first support beams 84 at the rear end 87. Thus, the pair of first support beams 84 and the pair of second support beams 86 may cooperate to substantially form a frame for the seat bottom assembly 66 that can support, for example, a seat cushion (not shown), a seat bottom spring (not shown), and / or a seat bottom slat (not shown).
[0048] A pair of linkages 78 can attach a pair of first panels 80 of the backrest assembly 64 to a pair of first support beams 84 of the seat bottom assembly 66, respectively. More specifically, a pair of linkages 78 can attach a pair of first panels 80 to the rear ends 87 of the pair of first support beams 84. The pair of linkages 78 can support the movement of the backrest assembly 64 and the seat bottom assembly 66 between an upright position and a reclined position.
[0049] As shown in Figures 7 and 8, the seat base 60 may include a pair of side support members 92, a first transverse member 94, and a second transverse member 96. Each of the side support members 92 may be positioned adjacent to its respective side support panel 72. The side support members 92 may extend between a first end 98 and a second end 100 opposite the first end 98. The first transverse member 94 may extend between the pair of side support members 92 and be positioned adjacent to the first end 98. The second transverse member 96 may extend between the pair of side support members 92 and be spaced apart from the first transverse member 94. The second transverse member 96 may be positioned adjacent to the second end 100. The side support members 92 and the first and second transverse members 94 and 96 may be fixed to each other. In other words, the seat base 60 may be a freestanding base frame for a furniture member 50.
[0050] As shown in Figures 7 and 8, the rocker assembly 68 may include a pair of rocker members 88 and a pair of rocker spring assemblies 90. The rocker members 88 may be mounted on the seat frame assembly 62 and can support the seat assembly 52 for rocking motion relative to the seat base 60 between a reference rocking position or reference tilt position (Figure 1), a rearward rocking position (Figure 2) or rearward tilt position (Figure 6), and a forward rocking position (Figure 3). In the configuration shown in the figures, one of the rocker members 88 may be attached to a first side support panel 72 of the side support panels 72 and a first rocker spring assembly 90 of the rocker spring assembly 90. A second rocker member 88 may be attached to a second side support panel 72 of the side support panels 72 and a second rocker spring assembly 90 of the rocker spring assembly 90. The bottom surface 102 of the rocker member 88 may be formed in a curved shape so that it can roll and come into contact with each of the side support members 92 of the seat base 60.
[0051] Each of the rocker spring assemblies 90 may be mirror images of one another. Continuing with reference to Figure 8, each rocker spring assembly 90 may include a first spring 104, a second spring 106, a first mounting bracket 108, and a second mounting bracket 110. The first mounting bracket 108 may be fixedly attached to a rocker member 88 or a seat frame assembly 62 (e.g., a side support panel 72). The second mounting bracket 110 may be fixedly attached to a seat base 60 (e.g., a side support member 92 of the seat base 60). The first and second springs 104, 106 may be positioned between the first mounting bracket 108 and the second mounting bracket 110 and attached to the first and second mounting brackets 108, 110.
[0052] As shown in Figures 7 to 11, the drive actuator mechanism 54 may include a drive rod 120, a first support rod 122, a second support rod 124, a motor 126, a drive assembly 128, a rail 130, a sliding carriage 132, and a cam 134. The drive actuator mechanism 54 may be positioned equidistant between the side support members 92 of the seat base 60. The drive actuator mechanism 54 is movable between a first position (Figure 10) and a second position (Figure 11). The first position of the drive actuator mechanism 54 corresponds to when the seat assembly 52 is in a first synchronous position (Figure 1). The second position of the drive actuator mechanism 54 corresponds to when the seat assembly 52 is in a fourth synchronous position (Figure 6).
[0053] As shown in Figures 7 and 9, the drive rod 120 may include a first rod end 136 and a second rod end 138 opposite the first rod end 136. The drive rod 120 may be rotatably supported by the seat frame assembly 62. The first and second rod ends 136, 138 of the drive rod 120 may be received by the respective side support panels 72 of the seat frame assembly 62. The drive rod 120 may have a square cross-sectional shape. Alternatively, the drive rod 120 may have any other preferred cross-sectional shape.
[0054] As shown in Figures 7 and 9, the first support rod 122 may include a first rod end 140 and a second rod end 142 opposite to the first rod end 140. The first and second rod ends 140, 142 of the first support rod 122 may be received by the respective side support panels 72 of the seat frame assembly 62. The first support rod 122 may have a circular cross-sectional shape. Alternatively, the drive rod 120 may have any other suitable cross-sectional shape.
[0055] As shown in Figures 10-11, the brace member 144 can support the drive rod 120 and the first support rod 122. The brace member 144 includes a first member end 146 and a second member end 148 opposite the first member end 146. The first member end 146 of the brace member 144 can be fixedly attached to the front support panel 74 (Figure 1) of the seat frame assembly 62. The second member end 148 of the brace member 144 can receive the drive rod 120 so that the drive rod 120 is rotatable relative to the brace member 144. A recess 150 may be provided between the first member end 144 and the second member end 146 that receive the first support rod 122.
[0056] As shown in Figures 7 and 9, the second support rod 124 may include a first rod end 152 and a second rod end 154 opposite to the first rod end 152. The first and second rod ends 152, 154 of the second support rod 124 may be received by the respective side support panels 72 of the seat frame assembly 62. The second support rod 124 may have a circular cross-sectional shape. Alternatively, the second support rod 124 may have any other suitable cross-sectional shape.
[0057] As shown in Figure 8, the motor 126 may be an AC or DC electric motor and may be operably connected to the drive assembly 128. The drive assembly 128 may be rotatably mounted to the second support rod 124 using a connecting bracket 156 and a support link 158. The connecting bracket 156 may be fixedly mounted to the drive assembly 128 and may extend toward the second transverse member 96 of the seat base 60. The support link 158 may include a rear wall 160 and opposing side walls 162 that cooperate to substantially form a U-shape. In addition, the support link 158 may extend between a first end 164 and a second end 166 opposite the first end 164. The first end 164 of the support link 158 may be attached to the second support rod 124. More specifically, the side walls 162 of the support link 158 may transversely receive a portion of the second support rod 124. The second end 166 of the support link 159 can receive a connecting bracket 156 between the side walls 162. A mechanical fastener 170 can pass through the side wall 162 of the support link 158 and the connecting bracket 156 in order to rotatably attach the support link 158 to the connecting bracket 156.
[0058] As shown in Figures 10-11, the rail 130 may extend between a first end 172 and a second end 174 opposite the first end 172. The first end 172 of the rail 130 may be positioned near the front support panel 74 (Figure 8). The second end 174 of the rail 130 may be housed at least partially within the drive assembly 128. A bracket 176 may be positioned at the first end 172 of the rail 130. The bracket 176 may include a rear wall 178 and an opposing side wall 180 extending from the rear wall 178 to substantially form a U-shape. The rear wall 178 of the bracket 176 may abut against the first end 172 of the rail 130. The side wall 180 may be positioned beside the rail 130. A rod 182 may pass through the opposing side wall 180 of the bracket 176. A pair of driven wheels 184 may be positioned at the opposing ends of the rod 182, and the pair of driven wheels 184 may be positioned outside the side wall 180 of the bracket 176.
[0059] The sliding carriage 132 is slidably positioned and supported on the rail 130. The sliding carriage 132 is configured to slide in either the forward direction (i.e., towards the first end 172 of the rail 130) or the backward or reverse direction (i.e., towards the second end 174 of the rail 130). As shown in Figure 10, the sliding carriage 132 can be positioned at the second end 174 of the rail 130 when the seat assembly 52 is in a first synchronous position (Figure 1). As shown in Figure 11, the sliding carriage 132 is positioned at the first end 172 of the rail 130 when the seat assembly 52 is in a fourth synchronous position (Figure 6). Thus, the sliding carriage 132 slides between the first end 172 and the second end 174 of the rail 130.
[0060] As shown in Figures 10-11, the sliding carriage 132 is connected to the drive rod 120 using a first pair of links 186 and a second pair of links 188 positioned on opposite sides of the sliding carriage 132. The first pair of links 186 may be fixedly attached to the sliding carriage 132. The second pair of links 188 may include a first end 190 rotatably coupled to the first pair of links 186 and a second end 192 that is drive-engaged to the drive rod 120. More specifically, the second end 192 of the link 188 may include an aperture 194 that receives the drive rod 120 and is shaped to conform to the cross-sectional shape of the drive rod 120. In addition, the second end 192 of the link 188 may include a flange 196. The flange 196 may be positioned near the drive rod 120 and fixedly attached to the drive rod 120 using a mechanical fastener 198.
[0061] The cam 134 can be fixedly attached to the brace member 144 using a connecting link 200 and a connecting bracket 202. The connecting link 200 can be fixedly attached to the brace member 144 and the front support panel 74 (Figure 8) at opposing ends. The connecting bracket 202 can be fixedly attached to the connecting link 200. The cam 134 may include a first side 204, a second side 206, and a third side 208 that cooperate to substantially form a triangle. The first side 204 of the cam 134 is curved and formed in a substantially convex configuration. The second side 206 of the cam 134 is also curved and formed in a substantially concave configuration. The third side 208 of the cam 134 connects the first and second sides 204,206 of the cam 134 at opposing ends and is formed in a substantially flat configuration.
[0062] The driven wheel 184 may be supported on the cam 134. As shown in Figure 10, when the seat assembly 52 is in a first synchronous position (Figure 1), the driven wheel 184 may contact the first side 204 of the cam 134 at a position adjacent to the third side 208 of the cam 134. As shown in Figure 11, when the seat assembly 52 is in a fourth synchronous position (Figure 6), the driven wheel 184 may contact the second side 206 of the cam 134 at a position adjacent to the third side 208 of the cam 134. Thus, the driven wheel 184 is configured to roll leaning against the first and second sides 204, 206 of the cam 134. The cam 134 may be made of a polymer material such as polyoxymethylene, a composite material, a metallic material, or any other suitable material.
[0063] As shown in Figures 9 and 12-14, each of the inclined linkage mechanisms 55 may include a clevis 225, a first link 226, a second link 228, a third link 230, a wheel support panel 232, and a mounting bracket 234. A pair of inclined linkage mechanisms 55 are positioned on opposite sides of the drive actuator mechanism 54, and each of the inclined linkage mechanisms 55 is mirror-image of the others. Only one inclined linkage mechanism 55 is shown in the figures. The inclined linkage mechanism 55 is movable between a first position (Figure 12), a second position (Figure 13), and a third position (Figure 14). The first position of the inclined linkage mechanism 55 corresponds when the seat assembly 52 is in the reference swing position or reference inclined position (Figure 1). The second position of the inclined linkage mechanism 55 corresponds when the seat assembly 52 is in the rearward swing position (Figure 2) or rearward tilt position (Figure 6). The third position of the inclined linkage mechanism 55 corresponds to when the seat assembly is in the forward swing position (Figure 3).
[0064] As shown in Figures 12 to 14, the clevis 225 of the inclined linkage mechanism 55 can be driven-engaged to the drive rod 120. The clevis 225 may include a rear wall 236 and opposing side walls 238 that cooperate to substantially form a U-shape. The drive rod 120 may pass transversely through the side walls 238. The rear wall 236 of the clevis 225 may include a recess 240. In addition, a pair of spacers 242 may be positioned outside the side walls 238 of the clevis 225.
[0065] The first link 226 may include a first end 244 attached to the drive rod 120 and a second end 246 rotatably attached to the second link 228. The first end 244 of the first link 226 may be positioned between the side walls 238 of the clevis 225. In addition, the second link 228 may include a first end 248 rotatably attached to the first link 226 and a second end 250 rotatably attached to the third link 230. In the example shown in the figure, the second link 228 is substantially L-shaped. However, the second link 228 may have any other preferred shape.
[0066] The third link 230 includes a first end 252 attached to the first support rod 122 and a second end 254 rotatably attached to the second end 250 of the second link 228. The second end 250 of the second link 228 and the second end 254 of the third link 230 are rotatably attached to the wheel support panel 232 using a common mechanical fastener 256. A driven wheel 258 may extend from the third link 230. The driven wheel 258 may include a base 260 fixed to the third link 230 and a contact surface 262 of the driven wheel 258 that can roll in contact with the wheel support panel 232.
[0067] The wheel support panel 232 extends between a first end 264 rotatably mounted to the second and third links 228, 230 and a second end 266 rotatably mounted to the mounting bracket 234 (or the first transverse member 94 of the seat base 60). A common mechanical fastener 256 passes through the wheel support panel 232 and is positioned adjacent to the first end 264 of the wheel support panel 232. The wheel support panel 232 may be made of a polymer material (e.g., polyoxymethylene), a composite material, a metallic material, or any other suitable material.
[0068] The mounting bracket 234 is fixedly attached to the first transverse member 94 of the seat base 60. The mounting bracket 234 includes a rear wall 268 that abuts against the seat base 60 and opposing side walls 270 that extend from the rear wall 268 to substantially form a U-shape. The second end 266 of the wheel support panel 232 is positioned between the side walls 270 of the mounting bracket 234. A mechanical fastener 272 penetrates transversely through the side walls 270 of the mounting bracket 234 and the wheel support panel 232.
[0069] As shown in Figures 9 and 15-16, the leg rest mechanism 56 may include a pair of drive links 290, a pair of support links 292, a pair of pantograph linkages 294, and a leg rest platform 296 (Figure 8). The pair of drive links 290, the pair of support links 292, and the pair of pantograph linkages 294 are located at opposing ends of the leg rest platform 296. Each of the drive links 290, the support links 292, and the pantograph linkages 294 is mirror-image of the others. Only one drive link 290, one support link 292, and one pantograph linkage 294 are shown in the figures.
[0070] The leg rest mechanism 56 is movable between a first position or retracted position (Figure 15) and a second position or extended position (Figure 16). The retracted position of the leg rest mechanism 56 corresponds to when the seat assembly 52 is in a first synchronized position (Figure 1). The extended position of the leg rest mechanism 56 corresponds to when the seat assembly 52 is in a fourth synchronized position (Figure 6). As will be described in more detail below, the rotation of the drive rod 120 moves the pantograph linkage 294 between a retracted position (Figure 15) and an extended position (Figure 16). While the leg rest mechanism 56 is in the extended position, the occupant can rest their legs and / or feet on the leg rest platform 296 (Figure 8).
[0071] A pair of drive links 290 may be positioned at the first rod end 136 and the second rod end 138 of the drive rod 120. As shown in Figures 15-16, each drive link 290 may include a first wall 298, a second wall 300, and a third wall 302 that cooperate to form a U-shape. The first wall 298 may be positioned adjacent to the side support panel 72 (Figure 7) that receives the drive rod 120. The first wall 298 may include an aperture 304 that receives the drive rod 120. The second wall 300 may extend inward from the first wall 298 and be positioned in parallel next to the drive rod 120. The third wall 302 may extend from the second wall 300. In other words, the first and third walls 298, 302 extend from opposing ends of the second wall 300 and cooperate to substantially form a U-shape. The third wall 302 may include a proximal end 306 attached to the second wall 300 and a distal end 308 opposite the proximal end 306. The drive rod 120 may pass through the proximal end 306 of the third wall 302 so that the drive link 290 is driven into the drive rod 120. The pantograph linkage 294 may be rotatably attached to the distal end 308 of the third wall 302. In addition, a projection 310 may be positioned adjacent to the distal end 308 and may extend toward the pantograph linkage 294. The projection 310 is configured to support the attachment of the pantograph linkage 294 and the drive link 290.
[0072] A pair of support links 292 may be positioned inside a pair of drive links 290. Each of the support links 292 may include a first wall 314 and a second wall 316 that cooperate to substantially form an L-shape. The first wall 314 may be positioned in parallel with the drive rod 120 and spaced apart from the second wall 300 of the drive link 290. A mechanical fastener 318 may pass through the first wall 314 and the drive rod 120 to securely attach the first wall 314 to the drive rod 120. The second wall 316 may include a proximal end 320 and a distal end 322 opposite the proximal end 320. The drive rod 120 may pass through the proximal end 320 of the second wall 316 so that the second wall 316 is driven into the drive rod 120.
[0073] A support tube 324 may be positioned at the distal end 322 of the second wall 316. The support tube 324 may include a body 326 and a pair of hooks 328 extending from opposing longitudinal ends of the body 326. The body 326 may be formed in a tubular configuration and positioned substantially perpendicular to the third wall 302 of the drive link 290. One hook 328 may be coupled to the distal end 322 of the second wall 316 of the support link 292, and the second hook 328 of the hooks 328 may be coupled to the third wall 302 of the drive link 290.
[0074] As shown in Figures 15 and 16, each of the pantograph linkages 294 may include a first support link 330, a swing link 332, a second support link 334, a transverse link 336, a third support link 338, and a bracket link 340. The first end 342 of the first support link 330 may be rotatably coupled to the distal end 308 of the drive link 290. The second end 344 of the first support link 330 is rotatably coupled to the first end 346 of the transverse link 336. The intermediate portion 348 of the first support link 330 (located between the first and second ends of the first support link 330) is rotatably coupled to the intermediate portion 350 of the swing link 332. The first end 352 of the swing link 332 may be rotatably coupled to the first support rod 122. The first end 352 may be formed as a hook. The second end 354 of the swing link 332 may be rotatably coupled to the first end 356 of the second support link 334. The second end 358 of the second support link 334 is rotatably coupled to the first end 360 of the bracket link 340. The middle section 362 of the second support link 334 is rotatably coupled to the middle section 364 of the transverse link 336. The second end 366 of the transverse link 336 is rotatably coupled to the first end 368 of the third support link 338. The second end 370 of the third support link 338 is rotatably coupled to the second end 372 of the bracket link 340. The leg rest platform 296 (Figure 8) may be fixedly attached to the bracket link 340.
[0075] As shown in Figures 9 and 17-18, each of the sequencing mechanisms 58 may include a slotted member 380, a cam 382, a first linkage 384, and a second linkage 386. A pair of sequencing mechanisms 58 may be located outside the leg rest mechanism 56. The sequencing mechanisms 58 may be mirror images of each other. Only one sequencing mechanism 58 is shown in the figures. The sequencing mechanism 58 is movable between a first position (Figure 17) and a second position (Figure 18). The first position of the sequencing mechanism 58 corresponds when the seat assembly 52 is in a first synchronous position (Figure 1). The second position of the sequencing mechanism 58 corresponds when the seat assembly 52 is in a fourth synchronous position (Figure 6).
[0076] As shown in Figure 7, the slotted member 380 may be positioned inside the first support beam 84 of the seat bottom assembly 66. The slotted member 380 may be fixedly attached to the first support beam 84 at the first end 85. More specifically, the slotted member 380 may include one or more flanges 388 (Figures 17-18) extending below the first support beam 84, and a mechanical fastener (not shown) may extend through one or more flanges 388 into the first support beam 84 for fixedly attaching the slotted member 380 to the seat bottom assembly 66. In addition, the slotted member 380 may include a slot 390 (Figure 18) positioned at a certain angle to the seat bottom assembly 66.
[0077] As shown in Figures 17-18, the cam 382 may be rotatably coupled to the slotted member 380. The cam 382 may include a first side 392, a second side 394, and a third side 396 that cooperate to substantially form a triangle. The first side 392 and the second side 394 of the cam 382 may be curved and formed in a substantially convex configuration. The third side 396 of the cam 382 may be substantially flat. A projection 398 may be formed between the first side 392 and the third side 396 of the cam 382. The first support rod 122 may extend through the projection 398 into the slot 390 of the slotted member 380. The cam 382 may be made of a polymer material such as polyoxymethylene, a composite material, a metallic material, or any other suitable material.
[0078] The first linkage 384 may include a first drive link 400, a second drive link 402, and a connecting link 404. The first drive link 400 may include an aperture 406 that is molded to match the cross-sectional shape of the drive rod 120. The drive rod 120 may pass through the aperture 406 so that the first drive link 400 is driven-engaged to the drive rod 120.
[0079] The second drive link 402 may include a first wall 410 and a second wall 412 that cooperate to substantially form an L-shape. The first wall 410 is positioned beside the drive rod 120 and, more specifically, may abut against the drive rod 120. One or more mechanical fasteners 414 may extend through the first wall 410 into the drive rod 120 to permanently attach the second drive link 402 to the drive rod 120. The second wall 412 of the second drive link 402 may be positioned along the drive rod 120 at a distance from the first drive link 400 and may be substantially parallel to the first drive link 400.
[0080] The connecting link 404 may include a first end 418 rotatably mounted on the cam 382 and a second end 420 rotatably mounted on the first and second drive links 400, 402. More specifically, the first end 418 of the connecting link 404 may be rotatably mounted on the cam 382 at a position between the first side 392 and the second side 394 of the cam 382. The second end 420 of the connecting link 404 may be positioned between the first drive link 400 and the second wall 412 of the second drive link 402. A mechanical fastener 422 may pass through the first drive link 400, the second end 420 of the connecting link 404, and the second wall 412 of the second drive link 402 in order to rotatably mount the connecting link 404 to the first and second drive links 400, 402.
[0081] The second linkage 386 may include a first link 424, a second link 426, and a driven wheel 428. The first link 424 may include a first end 430 and a second end 432 opposite to the first end 430. The first end 430 may include an aperture 439 that receives the second support rod 124 so that the first link 424 can be fixedly attached to the second support rod 124. The second end 432 may be rotatably coupled to the second link 426. The second link 426 may include a first end 434 and a second end 436 opposite to the first end 434. The first end 434 is attached to the driven wheel 428. The first and second links 424 and 426 can be rotatably mounted using mechanical fasteners 438 that pass through the second end 432 of the first link 424 and the second end 436 of the second link 426.
[0082] The support plate 440 may be positioned adjacent to the slotted member 380. The support plate 440 may be fixedly attached to the first support beam 84 (Figure 7) of the seat bottom assembly 66. The first end 434 of the second link 426 may be fixedly attached to the support plate 440. A mounting bracket 442 may be positioned on the first end 434 of the second link 426, and the mounting bracket 442 may be fixedly attached to the support plate 440. The mounting bracket 442 may extend above the driven wheel 428. A mechanical fastener 444 may extend through the driven wheel 428 into the support plate 440 so that the driven wheel 428 is rotatable relative to the support plate 440 and the mounting bracket 442.
[0083] The driven wheel 428 can roll leaning against the second and third sides 394, 396 of the cam 382. As shown in Figure 17, the driven wheel 428 can contact the second side 394 of the cam 382 when the seat assembly 52 is in the first synchronized position (Figure 1). As shown in Figure 18, the driven wheel 428 can contact the third side 396 of the cam 382, and more specifically, the projection 398, when the seat assembly 52 is in the fourth synchronized position (Figure 2).
[0084] Now, with reference to Figures 1 to 25, the operation of the furniture component 50 will be explained. As shown in Figures 1-3 and 19-21, the seat assembly 52 can swing between a reference swing position (Figures 1 and 19), a rearward swing position (Figures 2 and 20), and a forward swing position (Figures 3 and 21) when the leg rest mechanism 56 is in the retracted position. The seat assembly 52 can be manually moved between the reference swing position, the rearward swing position, and the forward swing position by a sitter sitting on the furniture member 50. To move the seat assembly 52 from the reference swing position to the rearward swing position, the sitter can apply force to the backrest assembly 64 in a rearward direction (for example, towards the rear end 450 of the furniture member 50). As a result, the backrest assembly 64 swings rearward, and at the same time, the seat bottom assembly 66 swings rearward relative to the seat base 60. The movement of the seat bottom assembly 66 relative to the seat base 60 simultaneously moves the first and second springs 104 and 106 of the rocker spring assembly 90, causing them to bend backward.
[0085] In addition, the rearward movement of the seat bottom assembly 66 simultaneously moves the first support rod 122 in the corresponding direction. Since the third link 230 is attached to the first support rod 122, the movement of the first support rod 122 moves the first end 252 of the third link 230 in the corresponding direction, thereby rotating the second end 254 of the third link 230 forward (for example, toward the front end 452 of the furniture member 50). The second end 254 of the third link 230 is attached to the wheel support panel 232, simultaneously rotating the first end 264 of the wheel support panel 232 forward. The movement of the wheel support panel 232 simultaneously moves the second link 228 and the first link 226 in the corresponding directions.
[0086] As the wheel support panel 232 continues to move, it comes into contact with the contact surface 262 of the driven wheel 258. This contact between the wheel support panel 232 and the driven wheel 258 restricts the wheel support panel 232 from rotating further forward toward the front support panel 74, thereby restricting the seat assembly 52 from moving further backward. In other words, when the wheel support panel 232 is in contact with the contact surface 262 of the driven wheel 258, the seat assembly 52 is in a fully backward-swinging position.
[0087] To move the seat assembly 52 from the reference swing position to the forward swing position, the seated person may apply a forward force to the seat bottom assembly 66. As a result, the backrest assembly 64 swings forward, simultaneously causing the seat bottom assembly 66 to swing forward relative to the seat base 60. The movement of the seat bottom assembly 66 relative to the seat base 60 simultaneously moves the first and second springs 104 and 106 of the rocker spring assembly 90, causing them to bend forward.
[0088] In addition, the forward movement of the seat bottom assembly 66 simultaneously moves the first support rod 122 in the corresponding direction. Since the third link 230 is attached to the first support rod 122, the movement of the first support rod 122 moves the first end 252 of the third link 230 in the corresponding direction, thereby moving the second end 254 of the third link 230 rearward. The second end 254 of the third link 230 is attached to the wheel support panel 232, and simultaneously rotates the wheel support panel 232 rearward. In addition, the movement of the second end 254 of the third link 230 rotates the second link 228 rearward. Since the first end 248 of the second link 228 is attached to the second end 246 of the first link 226, the movement of the second link 228 drives the first link 226 to rotate around the drive rod 120. As the first link 226 continues to rotate, its first end 244 contacts the clevis 225, more specifically the rear wall 236 of the clevis 225. Thereafter, the clevis 225 restricts further rotation of the first link 226 and restricts the seat assembly 52 from moving further forward. In other words, when the first end 244 of the first link 226 contacts the rear wall 236 of the clevis 225, the seat assembly 52 is in a fully forward-swinging position.
[0089] Those skilled in the art will understand that the seat assembly 52 can move from the forward swing position to the rearward swing position, and vice versa. In addition, the seat assembly 52 can move from any position between the reference swing position, the forward swing position, and the rearward swing position towards either the forward swing position or the rearward swing position.
[0090] As shown in Figures 22 to 25, the seat assembly 52 can move between a first synchronous position (Figure 22), a second synchronous position (Figure 23), a third synchronous position (Figure 24), and a fourth synchronous position (Figure 25). To move the seat assembly 52 from the first synchronous position to the fourth synchronous position, the occupant of the furniture member 50 can operate a user control unit (e.g., a switch, knob, and / or button) to cause the motor 126 to move the drive actuator mechanism 54 from the first position (Figure 22) to the second position (Figure 25). More specifically, the motor 126 of the drive actuator mechanism 54 drives the sliding carriage 132 to move along the rail 130 from the second end 174 of the rail 130 to the first end 172 of the rail 130.
[0091] From the first synchronized position (Figure 22) to the second synchronized position (Figure 23), the sliding carriage 132 slides from the second end 174 of the rail 130 toward the first end 172 of the rail 130. As the sliding carriage 132 moves along the rail 130, the first and second pairs of links 186, 188 drive the rotation of the drive rod 120. The rotation of the drive rod 120 simultaneously rotates the clevis 225 of the inclined linkage mechanism 55, so that the clevis 225 contacts the first link 226 when the seat assembly 52 is in the second synchronized position. The rotation of the clevis 225 rotates the first link 226 and the second link 228, thereby rotating the third link 230 and the wheel support panel 232. Since the third link 230 is supported by the first support rod 122, the rotation of the wheel support panel 232 and the third link 230 causes the seat assembly 52 to move from the reference swing position towards the rear swing position.
[0092] In addition, the rotation of the drive rod 120 simultaneously rotates the drive link 290 of the leg rest mechanism 56, and in response, the pantograph linkage 294 begins to expand. Finally, the rotation of the drive rod 120 simultaneously rotates the first linkage 384 in the corresponding direction. The rotation of the first linkage 384 rotates the cam 382, and as a result, the driven wheel 428 of the sequencing mechanism 58 rolls against the second side 394 of the cam 382.
[0093] From the second synchronization position (Figure 23) to the third synchronization position (Figure 24), the sliding carriage 132 continues to slide toward the first end 172 of the rail 130, further rotating the drive rod 120. Since the sliding carriage 132 is attached to the drive rod 120, the sliding carriage 132 and the rail 130 rotate simultaneously with the drive rod 120.
[0094] Further rotation of the drive rod 120 simultaneously further rotates the clevis 225 of the inclined linkage mechanism 55, which in turn drives the rotation of the first, second, and third links 226, 228, and 230, thereby rotating the wheel support panel 232 to the second position (Figure 13) when the seat assembly 52 is in the third synchronous position. The rotation of the wheel support panel 232 and the third link 230 further inclins the seat assembly 52 rearward, positioning the seat assembly 52 in the rearward swing position (Figure 2).
[0095] In addition, further rotation of the drive rod 120 simultaneously causes further rotation of the drive link 290, so that when the seat assembly 52 is in the third synchronous position, the leg rest mechanism 56 (i.e., the pantograph linkage 294) is positioned in the deployed position.
[0096] In addition, further rotation of the drive rod 120 simultaneously rotates the first linkage 384 of the sequencing mechanism 58 in the corresponding direction. The rotation of the first linkage 384 rotates the cam 382, so that the driven wheel 428 contacts the third side 396 of the cam 382 when the seat assembly 52 is in the third synchronous position.
[0097] When the pantograph linkage 294 is fully extended to the extended position (Figure 16), the drive rod 120 is restricted from further rotation. The motor 126 then moves the rail 130 backward, causing the first end 172 of the rail 130 to slide toward the sliding carriage 132. In response, when the seat assembly 52 is in the third synchronous position, the driven wheel 184 of the drive actuator mechanism 54 contacts the cam 134. The backward movement of the rail 130 rotates the support link 158 and, simultaneously, the second support rod 124.
[0098] The rotation of the second support rod 124 rotates the second linkage 386. More specifically, the rotation of the second support rod 124 simultaneously rotates the first link 424 because the second support rod 124 is fixedly attached to the first link 424. The movement of the first link 424 moves the second link 426 forward. Since the second link 426 is fixedly attached to the seat bottom assembly 66, the movement of the second link 426 causes the seat assembly 52 to move from the upright position towards the reclined position. Thus, the seat bottom assembly 66 moves forward. As the seat bottom assembly 66 moves forward, the slotted member 380 slides in a corresponding direction relative to the first support rod 122 and the cam 382. Since the driven wheel 428 is fixedly attached to the seat bottom assembly 66, the driven wheel 428 moves forward and rolls against the third side 396 of the cam 382. Since the third side 396 of the cam 382 is substantially flat, the cam 382 allows the driven wheel 428 and the seat bottom assembly 66 to move, and as a result the seat assembly 52 begins to recline from the upright position toward the reclined position.
[0099] From the third synchronous position (Figure 24) to the fourth synchronous position (Figure 25), the motor 126 continues to move the rail 130 backward. The driven wheel 184 makes rolling contact with the second side 206 of the cam 134 to guide the movement of the rail 130. When the seat assembly 52 is in the fourth synchronous position, the first end 172 of the rail 130 reaches the sliding carriage 132. Further movement of the rail 130 causes the support link 158 to rotate further, and simultaneously, the second support rod 124 to rotate further. Further rotation of the second support rod 124 causes the second linkage 386 to rotate further. In response, the seat bottom assembly 66 and the slotted member 380 continue to move forward. Since the driven wheel 428 is fixedly attached to the seat bottom assembly 66, the driven wheel 428 continues to move forward, and as a result, when the seat assembly 52 is in the fourth synchronous position, the driven wheel 428 contacts the projection 398. Thus, the seat assembly 52 continues to recline and is positioned in the reclined position.
[0100] As shown in Figures 22 to 25, the seat assembly 52 first moves the leg rest mechanism 56 from the retracted position to the extended position, and then moves the seat assembly 52 to the reclined position. More specifically, the motor 126 provides a 5.5-inch stroke for moving the leg rest mechanism 56 from the retracted position to the extended position and a 3.5-inch stroke for moving the seat assembly 52 from the upright position to the reclined position. In some configurations, there may be a transition period during which the seat assembly 52 begins to move from the upright position when the leg rest mechanism 56 moves to the extended position. In addition, the tilt linkage mechanism 55 moves the seat assembly 52 from the reference swing position to the rear swing position simultaneously with the movement of the leg rest mechanism 56 from the retracted position to the deployed position.
[0101] Another furniture component 550 is provided with reference to Figures 26 to 45. The furniture component 550 may include a seat base 560, a seat assembly 552, a drive actuator mechanism 554, a pair of tilt linkage mechanisms 555, a leg rest mechanism 556, and a pair of sequencing mechanisms 558. As will be described in more detail below, the seat assembly 552 is movable relative to the seat base 560. The seat assembly 552 can swing forward and backward between a first swing position or reference swing position (Figure 26), a second swing position or rearward swing position (Figure 28), and a third swing position or forward swing position (Figure 29). In addition, the seat assembly 552 can move between a first synchronous position (Figure 1), a second synchronous position or first intermediate position (Figure 30), a third synchronous position or second intermediate position (Figure 31), and a fourth synchronous position (Figure 32).
[0102] The seat base 560, seat assembly 552, drive actuator mechanism 554, and leg rest mechanism 556 may be identical or substantially similar to the seat base 60, seat assembly 52, drive actuator mechanism 54, and leg rest mechanism 56 of the furniture member 50. For example, the seat assembly 552 may include a backrest assembly 551 and a seat bottom assembly 553. Therefore, the seat base 560, seat assembly 552, drive actuator mechanism 554, and leg rest mechanism 556, as well as their respective operations, will not be described in detail again.
[0103] The drive actuator mechanism 554 may include a drive rod 562, a first support rod 564, a second support rod 566, and a motor 568. The drive actuator mechanism 554 is movable between a first position (Figure 26) and a second position (Figure 32). The first position of the drive actuator mechanism 554 corresponds to when the seat assembly 552 is in a first synchronous position (Figure 26). The second position of the drive actuator mechanism 554 corresponds to when the seat assembly 552 is in a fourth synchronous position (Figure 32). Similarly, the leg rest mechanism 556 is movable between a first leg rest position or retracted position (Figure 26) and a second leg rest position or extended position (Figure 32). The retracted position of the leg rest mechanism 556 corresponds to when the seat assembly 552 is in a first synchronous position (Figure 26). The deployed position of the leg rest mechanism 556 corresponds to when the seat assembly 552 is in the extended position (Figure 32).
[0104] As shown in Figure 33, and further with reference to Figures 34-36, each of the inclined linkage mechanisms 555 may include a set of linkages 570, a cam 572, a wheel support panel 574, and a mounting bracket 576. A pair of inclined linkage mechanisms 555 may be positioned on opposing sides of the drive actuator mechanism 554. The inclined linkage mechanisms 555 may be mirror images of each other. Only one inclined linkage mechanism 555 is shown in the figure. The inclined linkage mechanism 555 is movable between a first position (Figure 34), a second position (Figure 35), and a third position (Figure 36). The first position of the inclined linkage mechanism 555 corresponds when the seat assembly 552 is in a first synchronous position (Figure 26) and a reference swing position (Figure 26). The second position of the inclined linkage mechanism 555 corresponds when the seat assembly 552 is in a fourth synchronous position (Figure 32) and a rearward swing position (Figure 28). The third position of the inclined linkage mechanism 555 corresponds to when the seat assembly 552 is in the forward swing position (Figure 29).
[0105] The linkage 570 may include a first link 580, a second link 582, a third link 584, a fourth link 586, a fifth link 588, and a sixth link 590. The first end 592 of the first link 580 may receive a second support rod 566, and the second end 594 of the first link 580 may be rotatably attached to the first end 596 of the second link 582. The second end 598 of the second link 582 may be rotatably attached to the first end 600 of the third link 584. The second end 602 of the third link 584 may be rotatably attached to the first end 604 of the fourth link 586. The drive rod 120 may pass through the intermediate portion 606 of the third link 584 (located between the first and second ends). The second end 608 of the fourth link 586 may be rotatably attached to the first end 610 of the fifth link 588. A first driven wheel 612 may be positioned on the second end 608 of the fourth link 586 and the first end 610 of the fifth link 588. The second end 614 of the fifth link 588 may be rotatably attached to the first support rod 564. The first end 616 of the sixth link 590 may be rotatably attached to the first support rod 564 and positioned inside the second end 614 of the fifth link 588. A second driven wheel 618 may be positioned on the second end 620 of the sixth link 590. A pair of recesses 622 may be formed on the opposing longitudinal sides 624 of the sixth link 590. A pair of recesses 622 may be positioned in the intermediate portion 626 of the sixth link 590 (located between the first end 616 and the second end 620). The recesses 622 may be formed in a partially circular shape so that at least one of the recesses 622 can receive the first driven wheel 612.
[0106] The cam 572 may be fixedly mounted to the drive rod 562 and positioned inward from the linkage 570. More specifically, a connecting bracket 630 may be used to fix the cam 572 to the drive rod 562. The connecting bracket 630 may include a rear wall 632 and an opposing side wall 634 extending from the rear wall 632 and cooperating with the rear wall 632 to substantially form a U-shape. The cam 572 may be positioned between the side walls 634 of the connecting bracket 630. The drive rod 562 may be positioned between the cam 572 and the rear wall 632 of the connecting bracket 630. One or more mechanical fasteners 636 may pass through the side walls 634 of the connecting bracket 630 and the cam 572. In addition, a mechanical fastener 638 may extend through the rear wall 632 of the connecting bracket 630 and the drive rod 562 into the cam 572. A spacer 640 may be placed between the connecting bracket 630 and the third link 584 of the linkage 570.
[0107] The cam 572 may include a first side 642 and a second side 644 that cooperate to substantially form an enclosed U-shape. The first side 642 of the cam 572 may be curved and substantially form a U-shape. The second side 644 of the cam 572 may be substantially flat and cooperate with the first side 642 of the cam 572. The rear wall 632 of the connecting bracket 630 and the drive rod 562 may be positioned adjacent to the second side 644 of the cam 572. The cam 572 may be made of a polymer material (e.g., polyoxymethylene), a composite material, a metallic material, or any other suitable material.
[0108] The wheel support panel 574 may extend between a first end 650 and a second end 652 opposite the first end 650. The first end 650 of the wheel support panel 574 may be rotatably mounted to the sixth link 590 at a position between the middle portion 626 and the second end 620 of the sixth link 590. The second end 652 of the wheel support panel 574 may be rotatably mounted to the seat base 560 using a mounting bracket 576. The wheel support panel 574 may include a recess 654 which may be located near the first end 650 of the wheel support panel 574. The recess 654 may be formed on a side surface 656 of the wheel support panel 574 adjacent to the second driven wheel 618. The recess 654 may be formed in a partially circular shape so that the recess 654 can receive the second driven wheel 618. The wheel support panel 574 may be made of a polymer material (e.g., polyoxymethylene), a composite material, a metallic material, or any other suitable material.
[0109] The mounting bracket 576 can be fixedly attached to the seat base 560. The mounting bracket 576 may include a rear wall 660 that abuts against the seat base 560 and opposing side walls 662 that cooperate with the rear wall 660 to substantially form a U-shape. The second end 652 of the wheel support panel 574 is positioned between the side walls 662 of the mounting bracket 576. A mechanical fastener 664 penetrates transversely through the side walls 662 of the mounting bracket 576 and the wheel support panel 574 in order to rotatably attach the wheel support panel 574 to the mounting bracket 576.
[0110] As shown in Figures 33 and 37-38, each of the sequencing mechanisms 558 may include a slotted member 680, a cam 682, a first linkage 684, and a second linkage 686. A pair of sequencing mechanisms 558 may be positioned outside a pair of leg rest mechanisms 556. The sequencing mechanisms 558 may be mirror images of each other. Only one sequencing mechanism 558 is shown in the figures. The sequencing mechanism 558 is movable between a first position (Figure 37) and a second position (Figure 38). The first position of the sequencing mechanism 558 corresponds when the seat assembly 552 is in a first synchronized position (Figure 26). The second position of the sequencing mechanism 558 corresponds when the seat assembly 552 is in a fourth synchronized position (Figure 32).
[0111] The slotted member 680, the cam 682, and the first linkage 684 may be identical or substantially similar to the slotted member 380, the cam 382, and the first linkage 384 of the sequencing mechanism 58. Therefore, the slotted member 680, the cam 682, and the first linkage 684 will not be described in detail again.
[0112] The slotted member 680 may include a slot 688. A cam 682 may be rotatably coupled to the slotted member 680. The cam 682 may include a first side 690, a second side 692, and a third side 694 that cooperate to substantially form a triangle. A projection 696 may be formed between the first side 690 and the third side 694 of the cam 682. A first support rod 564 may extend through the projection 696 into the slot 688 of the slotted member 680.
[0113] The first linkage 684 may include a first drive link 698, a second drive link 700, and a connecting link 702. The drive rod 562 may pass through the first drive link 698, and the second drive link 700 may be attached to the drive rod 562. Thus, the first and second drive links 698,700 are drive-engaged to the drive rod 562. The connecting link 702 may include a first end 704 rotatably mounted on the cam 682 and a second end 706 rotatably mounted on the first and second drive links 698,700. More specifically, the first end 704 of the connecting link 702 may be fixedly attached to the cam 682 at a position between the first side 690 and the second side 692 of the cam 682. The second end 706 of the connecting link 702 can be positioned between the first drive link 698 and the second drive link 700.
[0114] The driven wheel 710 may be coupled to the cam 682 and secured to the seat assembly 552 using a mounting bracket 712. A mechanical fastener 714 may pass through the driven wheel 710. The driven wheel 710 may roll-engage with the second and third sides 692, 694 of the cam 682. As shown in Figure 37, the driven wheel 710 may contact the second side 692 of the cam 682 when the seat assembly 552 is in a first synchronous position. As shown in Figure 38, the driven wheel 710 may contact the third side 694 of the cam 682, and more specifically, abut against the projection 696, when the seat assembly 552 is in a fourth synchronous position.
[0115] The second linkage 686 may include a first link 720, a second link 722, and a mounting bracket 724. The first link 720 may include a first end 726 and a second end 728 opposite the first end 726. The first end 726 may receive and be fixedly attached to the second support rod 566. The second end 728 may be rotatably attached to the second link 722. The second link 722 may include a first end 730 rotatably attached to the mounting bracket 724 and a second end 732 rotatably attached to the second end 728 of the first link 720. The mounting bracket 724 may be fixedly attached to the seat assembly 552.
[0116] Now, with reference to Figures 26 to 45, the operation of the furniture component 550 will be explained. As shown in Figures 26 and 28-29, the seat assembly 552 can swing between a reference swing position (Figure 26), a rearward swing position (Figure 28), and a forward swing position (Figure 29) when the leg rest mechanism 556 is in the stowed position. In one example, when the seat assembly 552 is in the rearward swing position, the seat assembly 552 may be positioned approximately 15 degrees rearward relative to the reference swing position, and when the seat assembly 552 is in the forward swing position, the seat assembly 552 may be positioned approximately 7.5 degrees forward relative to the reference swing position.
[0117] The seat assembly 552 can be moved manually by a occupant sitting in the furniture member 550. To move the seat assembly 552 from the reference swing position to the rear swing position, the occupant can apply force to the backrest assembly 551 in a rearward direction (for example, toward the rear end 740 of the furniture member 550). As a result, the backrest assembly 551 swings rearward, simultaneously causing the seat bottom assembly 553 to swing rearward relative to the seat base 560. The movement of the seat bottom assembly 553 moves the first support rod 564 in a corresponding direction. Since the sixth link 590 is attached to the first support rod 564, the movement of the first support rod 564 rotates the sixth link 590 around its first end 616, thereby rotating the wheel support panel 574 forward around its second end 652 (for example, toward the front end 742 of the furniture member 550).
[0118] In addition, the movement of the first support rod 564 causes the fifth link 588 to rotate at its second end 614. Since the fifth link 588 is attached to the fourth link 586, the fourth link 586 is attached to the third link 584, the third link is attached to the second link 582, and the second link 582 is attached to the first link 580, the movement of the fifth link 588 simultaneously causes the fourth, third, second, and first links 586, 584, 582, and 580 to move in the corresponding directions.
[0119] As the sixth link 590 and the wheel support panel 574 continue to move, the second driven wheel 618 contacts the recess 654 of the wheel support panel 574. The contact between the second driven wheel 618 and the recess 654 restricts the sixth link 590 from moving further, thereby restricting the seat assembly 552 from moving further rearward. In other words, when the second driven wheel 618 contacts the recess 654 of the wheel support panel 574, the seat assembly 552 is in the fully rearward swing position.
[0120] To move the seat assembly 552 from the reference swing position to the forward swing position, the seated person may apply a forward force to the seat bottom assembly 553. As a result, the seat assembly 552 swings forward relative to the seat base 560. The movement of the seat assembly 552, more specifically the seat bottom assembly 553, simultaneously moves the first support rod 564 in the corresponding direction. Since the sixth link 590 is attached to the first support rod 564, the movement of the first support rod 564 rotates the sixth link 590 upward (for example, toward the seat bottom assembly 553) around the first end 616 of the sixth link 590.
[0121] In addition, the movement of the first support rod 564 causes the fifth link 588 to rotate upward around its second end 614. Since the fifth link 588 is attached to the fourth link 586, the fourth link 586 is attached to the third link 584, the third link is attached to the second link 582, and the second link 582 is attached to the first link 580, the movement of the fifth link 588 simultaneously causes the fourth, third, second, and first links 586, 584, 582, and 580 to move in the corresponding directions.
[0122] As the sixth link 590 and wheel support panel 574 continue to move, the first driven wheel 612 contacts the recess 622 of the sixth link 590, and the second driven wheel 618 contacts the first side 642 of the cam 572. Thus, the first and second driven wheels 612,618 restrict further movement of the fifth and sixth links 588,590, respectively, and thus restrict the seat assembly 552 from moving further forward. In other words, when the first driven wheel 612 contacts the recess 6222 of the sixth link 590 and the second driven wheel 618 contacts the first side 642 of the cam 572, the seat assembly 552 is in the fully forward swing position.
[0123] Those skilled in the art will understand that the seat assembly 552 can move from a forward swing position to a backward swing position, and vice versa. In addition, the seat assembly 552 can move from any position between the reference swing position, the forward swing position, and the backward swing position towards either the forward swing position or the backward swing position.
[0124] From the first synchronous position (Figure 42) to the second synchronous position (Figure 43), the motor 568 drives the rotation of the drive rod 562. The rotation of the drive rod 562 simultaneously rotates the linkage 570 and the cam 572. The rotation of the cam 572 brings the cam 572 into contact with the second driven wheel 618, and rotates the sixth link 590. The rotation of the sixth link 590 rotates the wheel support panel 574, and as a result, the seat assembly 552 begins to move from the reference swing position and begins to tilt toward the rear swing position. In addition, the rotation of the drive rod 562 moves the leg rest mechanism 556 from the retracted position and begins to extend toward the deployed position. Finally, the rotation of the drive rod 562 rotates the first linkage 684 of the sequencing mechanism 558, thereby rotating the cam 682. Since the driven wheel 710 is in contact with the second side 692 of the cam 682, the seat assembly 552 is restricted from moving from the upright position to the reclined position.
[0125] From the second synchronous position (Figure 43) to the third synchronous position (Figure 44), the motor 568 further drives the rotation of the drive rod 562. The further rotation of the drive rod 562 simultaneously sets the linkage 570, further rotates the cam 572, and thereby further rotates the wheel support panel 574. Thus, the seat assembly 552 continues to tilt toward the rearward swing position. In addition, the further rotation of the drive rod 562 continues to extend the leg rest mechanism 556 toward the extended position. In one example, when the seat assembly 552 is in the third synchronous position, the seat assembly 552 is positioned with a body tilt of approximately 9 degrees relative to the reference swing position.
[0126] Further rotation of the drive rod 562 also rotates the first linkage 684 of the sequencing mechanism 558, thereby rotating the cam 682. The driven wheel 710 (Figure 44) begins to contact the third side 694 of the cam 682, thus allowing the seat assembly 552 to move from the upright position and begin to recline. More specifically, the rotation of the drive rod 562 rotates the third link 584 of the tilting linkage mechanism 555, which in turn rotates the first and second links 580, 582. The rotation of the first link 580 rotates the second support rod 566, and the rotation of the second support rod 566 causes the seat assembly 552 to begin reclining. This is because the first and second links 720, 722 of the second linkage 686 are attached to the seat assembly 552 using mounting brackets 724.
[0127] From the third synchronous position (Figure 44) to the fourth synchronous position (Figure 45), the motor 568 further drives the rotation of the drive rod 562, and in addition, drives the rotation of the second support rod 566. The further rotation of the drive rod 562 simultaneously sets the linkage 570, further rotates the cam 572, and thereby further rotates the wheel support panel 574. Thus, the seat assembly 552 is positioned in the rearward swing position when the tilt linkage mechanism 555 is in the second position. In addition, further rotation of the drive rod 562 causes the leg rest mechanism 556 to be positioned in the extended position. Finally, further rotation of the drive rod 562 rotates the first linkage 684 of the sequencing mechanism 558, and thereby rotates the cam 682. The driven wheel 710 continues to roll, leaning against the third side 694 of the cam 682, thereby allowing the seat assembly 552 to continue to recline. The motor 568 of the drive actuator mechanism 554 drives the rotation of the second support rod 566. The rotation of the second support rod 566 drives the rotation of the second linkage 686, which in turn drives the seat assembly 552 to be positioned in the reclined position when the sequencing mechanism 558 is in the second position.
[0128] As shown in Figures 42 to 45, the seat assembly 552 first moves the leg rest mechanism 556 from a first synchronous position to a fourth synchronous position, and then moves the seat assembly 552 from an upright position to a reclined position. In some configurations, there may be a transition period in which the seat assembly 552 begins to move from the upright position when the leg rest mechanism 556 moves to the extended position.
[0129] In addition, the tilt linkage mechanism 555 moves the seat assembly 552 from the reference swing position to the rear swing position simultaneously with the movement of the leg rest mechanism 56 from the retracted position to the extended position and the movement of the seat assembly 552 from the upright position to the reclined position. More specifically, when the leg rest mechanism 556 is in the extended position, the seat assembly 552 is positioned with a body tilt of approximately 9 degrees relative to the reference swing position, and when the seat assembly is in the reclined position, it is positioned with a body tilt of approximately 14 degrees relative to the reference swing position.
[0130] The above-described embodiments are provided for illustrative and explanatory purposes only. They are not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are not generally limited to that particular embodiment and, where appropriate, are interchangeable and usable in selected embodiments, even without specific notation or description. Furthermore, individual elements or features of a particular embodiment may be modified in various ways. Such modifications should not be considered deviations from the disclosure, and all such modifications are intended to be within the scope of the disclosure.
Claims
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 brings the first surface of the cam into contact with the driven wheel, and the subsequent rotation of the drive rod brings the second surface of the cam into contact with 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 tilting position and the second tilting 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 an inclined 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 inclined position and the second inclined position with respect 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 swinging further 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 swinging further forward.
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 member 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.
21. A rail attached to the motor, The furniture member according to claim 19, further comprising a sliding carriage attached to the drive rod.
22. The motor first drives the sliding carriage to slide along the rail, and at the same time rotates the drive rod, The furniture member according to claim 21, wherein the motor then drives the rail to slide relative to the sliding carriage and simultaneously rotates the support rod.
23. The furniture member according to claim 15, wherein the set of linkages of the inclined linkage mechanism includes a first link coupled to the support rod and a second link coupled to the drive rod.
24. The furniture member according to claim 15, wherein the rotation of the first cam brings the first cam into contact with the first driven wheel and simultaneously drives the set of linkages to move the seat assembly from the reference inclined position to the rear inclined position.
25. The seat assembly is sequenced to move from a first synchronization position to a second synchronization position, and from a third synchronization position to a fourth synchronization position. When the seat assembly moves between the first synchronized position and the fourth synchronized position, the seat assembly moves between the reference tilted position and the reclined position, and the leg rest platform moves between the stowed position and the deployed position. The furniture member according to claim 15, wherein when the seat assembly moves between the second synchronous position and the fourth synchronous position, the seat assembly moves between the upright position and the reclining position.
26. The seat assembly is pivotable between a rearward pivot position and a forward pivot position, and as the seat assembly moves between the rearward pivot position and the forward pivot position, the linkage set and the wheel support panel rotate simultaneously. When the leg rest platform is in the accommodating position, the seat assembly swings freely between the forward swinging position and the rearward swinging position. The furniture member according to claim 15, wherein when the leg rest platform is in the deployed position, the seat assembly is restricted from swinging between the forward swing position and the rearward swing position.
27. The furniture member according to claim 26, wherein when the first driven wheel contacts the wheel support panel, the seat assembly is in the rearward swing position and is restricted from swinging further in the rearward direction.
28. The furniture member according to claim 26, wherein when the first driven wheel contacts the first cam, the seat assembly is in the forward swing position and is restricted from swinging further in the forward direction.