Patent Application
20110304193
This invention relates generally to seating units, and relates more particularly to reclining seating units with gliding capability.
Recliner chairs and other reclining seating units have proven to be popular with consumers. These seating units typically move from an upright position, in which the backrest is generally upright, to one or more reclined positions, in which the backrest pivots to be less upright. The movement of the seating unit between the upright and reclined positions is typically controlled by a pair of matching reclining mechanisms that are attached to the seat, backrest and base of the chair.
One particularly popular reclining chair is the so-called “wall-proximity” chair. In a conventional reclining chair, as the backrest moves to the reclined position, the upper end of the backrest moves rearwardly relative to the base of the chair. As a result, typically the chair cannot be positioned such that the backrest is adjacent a wall, as the reclining backrest would strike the wall and thereby be prevented from fully reclining. A “wall-proximity” reclining chair includes some type of mechanism (typically either a linkage or a set of wheels that roll on a track) that move the seat of the chair forward relative to the base to provide additional room for the backrest to recline. Typically, such chairs are configured so that the seat and backrest move forward relative to the base when the chair moves from an upright position to a partially reclined “TV” position, in which the footrest is extended. The seat and backrest then move farther forward relative to the base as the chair from the TV position to its fully reclined position. Exemplary wall-proximity chairs are illustrated in U.S. Pat. Nos. 4,077,663 to Cycowicz et al., 4,337,977 to Rogers et al., 4,531,778 to Rogers, 4,805,960 to Tacker, 5,588,710 to Wiecek, and 5,992,930 to LaPointe et al., and in U.S. Patent Publication No. 20080036248 to Murphy et al., the disclosures of each of which are hereby incorporated herein in their entireties. A typical wall-proximity chair in its upright position can be placed with the backrest within 3 to 4 inches of an adjacent wall and still avoid striking the adjacent wall when moved to the fully reclined position.
One potential shortcoming of wall-proximity chairs is that the wall-proximity mechanism or wheel/rail system is typically somewhat complex, with multiple interconnected intricate parts. As such, production of these mechanisms can be relatively expensive. Consequently, it would be desirable to provide a relatively uncomplicated and inexpensive wall-proximity mechanism.
As a first aspect, embodiments of the present invention are directed to a seating unit. The seating unit comprises: a base configured to rest on an underlying surface; a seat; a backrest; an ottoman; and a reclining mechanism attached to the base, seat, backrest and the ottoman. The reclining mechanism comprises a series of pivotally interconnected links configured and arranged to control the movement of the seating unit between an upright position, in which the seat is generally horizontally disposed and positioned above the base, the backrest defines a first backrest angle relative to horizontal and is positioned above a rear portion of the base, and the ottoman is positioned below the seat and above a forward portion of the base, a TV position, in which the ottoman is generally horizontally disposed and positioned forwardly of the base and the seat, and a fully reclined position, in which the backrest defines a second angle relative to horizontal that is less than the first angle. The backrest and seat are substantially stationary relative to the base as the seating unit moves between the upright and fully reclined positions. An uppermost portion of the backrest moves no more than 4 inches rearward relative to the base as the seating unit moves from the TV position to the fully reclined position. In this configuration, the seating unit can provide wall-proximity capability.
As a second aspect, embodiments of the present invention are directed to a seating unit, comprising: a base configured to rest on an underlying surface; a seat; a backrest; an ottoman; and a reclining mechanism attached to the base, seat, backrest and ottoman. The reclining mechanism comprises a series of pivotally interconnected links configured and arranged to control the movement of the seating unit between an upright position, in which the seat is generally horizontally disposed and positioned above the base, the backrest defines a first backrest angle relative to horizontal and is positioned above a rear portion of the base, and the ottoman is positioned below the seat and above a forward portion of the base, a TV position, in which the ottoman is generally horizontally disposed and positioned forwardly of the base and the seat, and a fully reclined position, in which the backrest defines a second angle relative to horizontal that is less than the first angle. The backrest and seat are substantially stationary relative to the base as the seating unit moves between the upright and fully reclined positions. An uppermost portion of the backrest moves no more than 3 inches rearward relative to the base as the seating unit moves from the TV position to the fully reclined position. The seat moves upwardly between about 3 and 6 inches relative to the base when the seating unit moves between the TV and fully reclined positions.
As a third aspect, embodiments of the present invention are directed to a seating unit, comprising: a base configured to rest on an underlying surface; a seat; a backrest; an ottoman; a reclining mechanism attached to the base, seat, backrest and ottoman; and a linear actuator attached to the reclining mechanism to drive the seating unit between the upright, TV and fully reclined positions. The reclining mechanism comprises a series of pivotally interconnected links configured and arranged to control the movement of the seating unit between an upright position, in which the seat is generally horizontally disposed and positioned above the base, the backrest defines a first backrest angle relative to horizontal and is positioned above a rear portion of the base, and the ottoman is positioned below the seat and above a forward portion of the base, a TV position, in which the ottoman is generally horizontally disposed and positioned forwardly of the base and the seat, and a fully reclined position, in which the backrest defines a second angle relative to horizontal that is less than the first angle. An uppermost portion of the backrest moves no more than 4 inches rearward relative to the base as the seating unit moves from the TV position to the fully reclined position.
The present invention now is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Like numbers refer to like elements throughout. In the figures, the thickness of certain lines, layers, components, elements or features may be exaggerated for clarity. Broken lines illustrate optional features or operations unless specified otherwise.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the specification and relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. Well-known functions or constructions may not be described in detail for brevity and/or clarity.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. As used herein, phrases such as “between X and Y” and “between about X and Y” should be interpreted to include X and Y. As used herein, phrases such as “between about X and Y” mean “between about X and about Y.” As used herein, phrases such as “from about X to Y” mean “from about X to about Y.”
It will be understood that when an element is referred to as being “on”, “attached” to, “connected” to, “coupled” with, “contacting”, etc., another element, it can be directly on, attached to, connected to, coupled with or contacting the other element or intervening elements may also be present. In contrast, when an element is referred to as being, for example, “directly on”, “directly attached” to, “directly connected” to, “directly coupled” with or “directly contacting” another element, there are no intervening elements present. It will also be appreciated by those of skill in the art that references to a structure or feature that is disposed “adjacent” another feature may have portions that overlap or underlie the adjacent feature.
This invention is directed to seating units that have a frame, a seat portion, and a backrest. As used herein, the terms “forward”, “forwardly”, and “front” and derivatives thereof refer to the direction defined by a vector extending from the backrest toward the seat parallel to the underlying surface. Conversely, the terms “rearward”, “rearwardly”, and derivatives thereof refer to the direction directly opposite the forward direction; the rearward direction is defined by a vector that extends from the seat toward the backrest parallel to the underlying surface. The terms “lateral,” “laterally”, and derivatives thereof refer to the direction parallel with the floor, perpendicular to the forward and rearward directions, and extending away from a plane bisecting the seating units between their armrests. The terms “medial,” “inward,” “inboard,” and derivatives thereof refer to the direction that is the converse of the lateral direction, i.e., the direction parallel with the floor, perpendicular to the forward direction, and extending from the periphery of the seating units toward the aforementioned bisecting plane.
The seating units illustrated and described herein comprise a plurality of pivotally interconnected links. Those skilled in this art will appreciate that the pivots between links can take a variety of configurations, such as pivot pins, rivets, bolt and nut combinations, and the like, any of which would be suitable for use with the present invention. Also, the shapes of the links may vary as desired, as may the locations of certain of the pivots. Moreover, in some instances combinations of pivot points may be replaced by equivalent structures, such as “slider-crank” configurations, like those described in B. Paul, Kinematics and Dynamics of Planar Machinery 4-21 (1979).
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The base 12 includes arms 14 on opposite sides thereof. Referring to
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Either of the seats 18 and backrests 22 can be moved to TV or fully reclined positions independently of the other seat 18/backrest 22. To move one of the sections of the love seat 10 from the upright position to the TV position of
In the TV position, the front and rear ottomans 24a, 24b are positioned forward of the seat 18 and are generally horizontally disposed. However, the seat 18 and backrest 22 are substantially stationary relative to each other or to the base 12 as the seating unit 10 moves between the upright and TV positions.
To move a section of the love seat 10 from the TV position to the fully reclined position of
The ability of the power unit 90 to move forwardly with the rear swing link 38 enables the reclining mechanism 30 to be relatively simple even though it can provide wall-proximity capability. Because the power unit 90 moves with the rear swing link 38, the rear swing link 38 can be coupled with the backpost 50 with just the recline link 54. This capability is typically much more complicated and requires more moving parts, particularly in seating units in which actuation of the seating unit occurs via a handle or the like that extends through the arm of the seating unit, as such a handle typically cannot move relative to the arm.
The seat 18 and backrest 22 can be returned to the TV and upright position by activating the motor 92 of the power unit 90 to reverse its direction, thereby retracting the rod 96 into the sleeve 94. The links of the reclining mechanism 30 reverse the movements described above in returning to the TV and upright position.
The foregoing embodiments are illustrative of the present invention, and are not to be construed as limiting thereof. Although exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.
