The present application is directed to a suspension chair and, separately, to modular furniture arrangements incorporating a chair, together with methods for the arrangement and assembly thereof.
Various types of suspension seating arrangements are well known. Typically, such arrangements provide a flexible suspension member that it tensioned between two or more support members. The suspension member may directly support the body of the user, or may be covered by a fabric layer. Due to the linear nature of the tension vectors applied in such suspension members, such arrangements are generally not suitable for seating systems providing orthogonal back supports, and do not provide any transitional support between such supports.
In addition, the support members typically provide a “hard” point at the side edge of the seating arrangement. As such, any configuration wherein such seating arrangements are positioned adjacent one another provides intermittent hard points that limit the comfort and use of the configuration.
In another aspect, office “side” chairs are typically configured with a pair of armrests, or no armrests. In either case, the office chair, if associated with a worksurface, such as a desk, must either be moved by the user to gain proximity to the worksurface, wherein the user may be trapped by the armrests, or in the absence of such arms fails to provide any support for the user's arms when situated by a worksurface. Moreover, the upper surfaces of armrests, when so configured, typically do not mate with or transition to the worksurface, thereby leading to pinch points, uneven surfaces and/or other obstacles.
Besides not being suitable for use with a worksurface, such office chairs may also not be suitable for modular use, for example to provide various community seating configurations.
Briefly stated, in one aspect, one embodiment of a suspension chair includes a first back support portion having a first linear support surface extending along a first direction and a second back support portion having a second linear support surface extending along a second direction, wherein the second direction is substantially perpendicular to the first direction. A third back support portion includes an outwardly facing concave surface transitioning between the first and second back support portions. The first and second back support portions include first and second suspension elements extending in the first and second directions respectively. The first and second suspension elements are tensioned so as to provide first and second normal biasing forces to the first and second body support portions.
In another aspect, one embodiment of a suspension chair includes a base, a fixed support supported by the base and defining an upper portion of a back, and a side support supported by the base and pivotable about a horizontal axis. The side support has a front surface and an upper portion moveable toward and away from the upper portion of the fixed support. A fabric layer covers at least a portion of the fixed support and a front surface of the side support.
In another aspect, one embodiment of a furniture arrangement includes a first chair having a first side surface lying in a first substantially vertical plane. The first side surface is defined in part by a first fixed support defining an upper portion of a first back and a first side support pivotable about a horizontal axis. The first side support has an upper portion moveable toward and away from the upper portion of the first fixed support. A second chair has a second side surface lying in a second substantially vertical plane, wherein the second side surface is defined in part by a second fixed support defining an upper portion of a second back and a second side support pivotable about the horizontal axis. The second side support has an upper portion moveable toward and away from the upper portion of the second fixed support. The first and second chairs are positioned such that the first and second sides are adjacent.
In yet another aspect, one embodiment of a furniture arrangement includes a worksurface having a side edge and opposite front and rear edges. The worksurface is vertically spaced so as to define leg space beneath each of the front and rear edges. A chair is positioned adjacent the rear edge and includes a backrest defined by first and second back support portions extending in first and second directions, wherein the first and second back support portions are substantially perpendicular. The first back support portion has an end positioned adjacent the rear edge such that the second back support portion is spaced from the rear edge and defines an ingress/egress opening between the second back support portion and the rear edge. The first and second back support portions and the rear edge define a U-shaped occupancy space in plan view.
In yet another aspect, a modular furniture kit includes at least four chairs each having a backrest defined by first and second back support portions extending in first and second directions, wherein said first and second directions are substantially perpendicular, wherein a rear surface of each of the first and second back supports are substantially linear in the first and second directions. An upper surface of each of the first and second back supports includes a planar armrest surface. The chairs are capable of being arranged in each of at least a first and second configuration. The first configuration includes a pair of the chairs arranged with the rear surfaces lying adjacent such that the planar armrests define a T-shape in plan view. The second configuration includes four of the chairs arranged with the rear surfaces lying adjacent such that the planar armrests define a X-shape in plan view.
The various aspects and embodiments provide significant advantages over other chair, furniture arrangements and modular furniture kits. For example and without limitation, in one embodiment, the chair is configured with a unique suspension back that provides a biasing force in orthogonal directions. In addition, in one embodiment, a chair may be arranged relative to a worksurface to provide a supportive and integrated interface that avoids the need to move the chair. In addition, the various chairs may be easily reconfigured to provide different seating configurations suitable for the desired environment.
The present embodiments of the invention, together with further objects and advantages, will be best understood by reference to the following detailed description taken in conjunction with the accompanying drawings.
The terms “top,” “upper,” “bottom” and “lower” are intended to indicate directions when viewing a chair or desk when positioned for use. It should be understood that the term “plurality,” as used herein, means two or more. The term “coupled” means connected to or engaged with, whether directly or indirectly, for example with an intervening member, and does not require the engagement to be fixed or permanent, although it may be fixed or permanent. The term “transverse” means extending across an axis, including without limitation substantially perpendicular to an axis. It should be understood that the use of numerical terms “first,” “second,” “third,” etc., as used herein does not refer to any particular sequence or order of components; for example “first” and “second” portions may refer to any sequence of such portions, and is not limited to the first and second portions of a particular configuration unless otherwise specified.
Referring to
The fixed support 12 includes a pair of side members 22, 24 fixedly connected to the base and extending upwardly therefrom. The side members may be angled rearwardly relative to a vertical axis at an angle .alpha., or may be oriented within a vertical plane. The angle .alpha. of inclination is in range of 9-14 degrees. An intermediate or center support 26 may also be angled along a diagonal direction extending from a front to a rear corner of the base, or may be vertically oriented. An upper portion 28 is connected to the side members 22 and center support 26. The upper portion 28 is configured as a horizontal platform in one embodiment, with linear rear edges 30, 32 forming a right angle and linear front edges 34, 36 lying perpendicular to one another, with a curved transition portion 38 extending therebetween. The upper portion surface includes side edges 40, 42 lying perpendicular to one another, and connecting the rear and front edges 30, 34, 32, 36. The upper portion platform 28 defines an armrest and has a width War suitable for supporting an arm of a user, or otherwise providing a planar support surface. The platform 28 may be made of a fabricated steel frame. The platform is covered by a fabric layer, as further explained below, but may also include a cushion layer 33, such as foam, and/or an additional translucent spacer layer.
The base 10 defines a second platform 46, or shelf, vertically spaced from and directly underlying the upper portion, or armrest, with linear rear edges 48, 50 forming a right angle and directly underlying the rear edges 30, 32 of the upper portion in one embodiment. The platform, or perimeter block, may be made of expanded polypropylene foam (EPP) in one embodiment, or a sheetmetal frame, and supports the cushion and/or suspension, and connects to the frame. As shown in
A first back support portion 72 has a first linear support surface 78 extending along a first direction 84. A second back support portion 74 has a second linear support surface 80 extending along a second direction 86, with the second direction 86 being substantially perpendicular to the first direction 84. A third back support portion 76 has an outwardly facing concave support surface 82 transitioning between the first and second back support portions. The first, second and third back support portions 72, 74, 76 extend between the seat 4 and the upper portion 28 of the fixed support. As shown in
The first and second side support elements 104, 106 are positioned adjacent to define a side edge 108, 110 of respective ones of the first and second body support portions, which are coplanar with and define sides 16 and 18 of the chair and side edges 40, 42 of the upper platform 28. In this regard, it should be understood that the suspension elements, including back and seat elements, in some Figures are shown in an exploded configuration without attachment, and they are therefore are not elongated due to a lack of tension being applied thereto. The side support elements 104, 106 support one end 96 or edge of the suspension elements as just discussed. Opposite ends 98 of the suspension elements are connected to the center support 26. Alternatively, two or more of the suspension elements 88, 90, 92 may be integrally formed, with opposite ends 96 thereof coupled to the side support elements 104, 106 and with a middle region wrapped around the center support 26, with tension vectors being applied in perpendicular directions 84, 86 between the center support 26 and the first and second side support elements 104, 106.
Referring to
In one embodiment, the first and second side support elements 104, 106 are pivotable about first and second axes extending in the first and second directions 84, 86 respectively. The term pivotable refers to the support elements being directly pivotable about an axis, such as pin, or pivotable about a virtual axis, for example by way of the support elements bending or flexing, with the bottom end thereof being fixedly attached to the base. First and second brace members 108, 110 have a first end 124 connected to and bracing the first and second side support elements 104, 106 in the first and second directions 84, 86 against tension forces applied by the first and second suspension elements 88, 90. The brace members 108, 110 have opposite end portions 126 connected to the center support 26, and/or to the fixed upper portion 28. In one embodiment, the connection of the end portion allows for rotation of the brace member as the opposite end thereof moves with the side supports. For example the ends 126 of the brace members may be pivotally connected to the fixed upper portion with pivot pads 120. In one embodiment, the upper portion 130 of the side support elements 104, 106 are curved and define a curved transition or shoulder region between the linear support surfaces 72, 74 and the horizontal platform 28. The side support elements may include a curved flange 133 that mates with a brace member and is secured thereto with fasteners 135. The platform 28 may also have a front curved lip 132. The side members 22, 24 and the side support elements 104, 106 may be aligned, with a gap 134 formed therebetween, such that the side support elements 104, 106 may be pivoted (e.g., by bending) rearwardly toward the side supports 22, 24. The brace members 108, 110 have end portions with a corresponding curved portion 124 to mate with the upper portion of the side support elements, with the brace members being secured to the side supports with a plurality of fasteners. It should be understood that the members may be joined by welding, tabs, or other known and suitable connection devices. The back portion includes a bottom frame member 136, and three straps or stanchions, which are connected to the base frame 52.
A fabric layer 140, such as a knit fabric, covers and is supported by the first and second suspension elements 88, 90 and also covers the fixed support platform 28 so as to provide a uniform and continuous appearance to the back support. In various embodiments, the fabric layer 140 may be in direct contact with said first and second suspension elements, or may have a cushion, such as foam or clear spacer material, interposed therebetween. As shown in
In operation, a user may be seated in the chair 1 and lean against the first and second back support portions 72, 74, with the suspension elements 88, 90 biasing the user in a direction normal thereto. The side support elements 104, 106 flex or bend, i.e., pivot about a virtual axis, such that the upper portion 130 of the side support moves toward and away from the fixed support 28. For example, in one embodiment, the upper portion moves about 1 inch, although in various embodiments the upper portion may move between 0.25 inches and 2.00 inches.
In various embodiments, a chair, or bench, may be made with a linear back, each side of which has a flexible side support element 104, 106. When two chairs are arranged side by side, the adjacent flexible side support elements 104, 106 give way and avoid applying a hard point to the user. This may be important in the situation where a pair of modular chairs are arranged side by side as shown in
Referring to
Referring to
In operation, a chair 2 is positioned adjacent the rear edge 208 of the worksurface as shown in
Referring to
Referring to
In another embodiment, at least one table 300 having an upper worksurface 302 lying substantially coplanar with the upper surfaces of the planar armrest platforms 28 is positioned between pairs of chairs arranged in either the T-shaped configuration or the U-shaped configuration.
In another embodiment, a pair of chairs 2 are arranged with the rear surfaces 30, 48, 32, 50 lying adjacent such that the planar armrests define a Z-shape in plan view. In another embodiment, the tables 400 are positioned adjacent the rear surfaces 30, 48, 32, 50 of each of the first and second back supports such that one of the chairs and the pair of tables define a V-shape in plan view. In another embodiment, one table 400 is positioned adjacent a rear surface 30, 48 of a first back support, and another table 400 is positioned adjacent a side 16, 18 of a seat of the chair, wherein the chair and the pair of tables define a V-shape in plan view.
As shown in
Although the present invention has been described with reference to preferred embodiments, those skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. As such, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting and that it is the appended claims, including all equivalents thereof, which are intended to define the scope of the invention.
This application is a divisional of U.S. patent application Ser. No. 14/213,425, filed Mar. 14, 2014, now U.S. Pat. No. 9,414,673, which claims the benefit of U.S. Provisional Application No. 61/791,874, filed Mar. 15, 2013, the entire disclosures of both of which are hereby incorporated herein by reference.
Number | Date | Country | |
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61791874 | Mar 2013 | US |
Number | Date | Country | |
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Parent | 14213425 | Mar 2014 | US |
Child | 15238160 | US |