The present invention relates to a seating structure, and in particular, to a seating structure, such as a chair.
In one aspect, the invention provides, a seating structure including a base, a seat supported by the base, and a backrest supported by the base. The backrest includes a rear backrest section and a front backrest section coupled to the rear backrest section to define a gap therebetween. The gap extends around at least part of a perimeter of the backrest. The backrest further includes a fabric layer covering the front backrest section. A portion of the fabric layer is received in the gap.
In another aspect, the invention provides, a seating structure including a base, a seat supported by the base, and a backrest supported by the base. The backrest includes a rigid substrate having a front side, a rear side, and an edge. The backrest also includes a border element coupled to the front side of the rigid substrate. The border element extends outwardly beyond the edge of the rigid substrate to at least partially define a gap. The backrest further includes a front foam layer overlaying the border element and the front side of the rigid substrate and a fabric layer covering the front foam layer. A portion of the fabric layer is received in the gap.
In another aspect, the invention provides, a seating structure including a base, a seat supported by the base, and a backrest supported by the base. The backrest includes a rigid substrate having a front side, a rear side, and a perimeter edge defined between the front and rear sides. The backrest also includes a front backrest section coupled to the front side of the rigid substrate. A portion of the front backrest section extends outwardly beyond the perimeter edge of the rigid substrate. The backrest further includes a rear backrest section coupled to the rear side of the rigid substrate. A portion of the rear backrest section extends outwardly beyond the perimeter edge of the rigid substrate to define a gap between the front backrest section and the rear backrest section. The backrest also includes a fabric layer covering the front backrest section, the rear backrest sections, or both, wherein a portion of the fabric layer is received in the gap.
Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
To avoid crowding the drawings with reference numbers for different ends, sides, etc. of parts of the chair, it will be presumed that one of ordinary skill will read this disclosure with the ordinary meaning of directional and positional terms in mind. Throughout this disclosure, for example, the terms “left,” “right,” “rear,” “front,” “forward,” and “rearward” are used from the perspective of an occupant or user seated in the chair. Terms such as “top” and “bottom” are used with respect to the intended ordinary condition of the chair. The term “above” means that one component is positioned higher than another with necessarily being in the same vertical plane. The term “vertically above” means that one component is higher than another thing and in the same vertical plane. “Below” means a component is lower than another component, whereas “vertically below” means that the component is lower and also within the same vertical plane as the other component.
The illustrated base 14 includes a tilt mechanism 30 (
The seat 18 is coupled to the tilt mechanism 30 above the support column 34. The illustrated seat 18 includes a skirt 50 and a cushion 54 supported by the skirt 50. In the illustrated embodiment, the cushion 54 is a foam cushion covered by a fabric or textile material. In other embodiments, the seat 18 may include suspension material instead of the cushion 54 to support a user. In addition, the seat 18 may have various shapes and forms to provide different aesthetic appearances of the seating structure 10.
The seating structure 10 also includes a pair of armrests 58. The illustrated armrests 58 are coupled to the seat 18. In other embodiments, the armrests 58 may be coupled to other portions of the seating structure 10. In the illustrated embodiments, the armrests 58 are disposed over side uprights 62 so that the side uprights 62 are received within a cavity of the armrests 58. The side uprights 62 extend from the skirt 50 of the seat 18. Each armrest 58 includes an arm support 66 that may include a foam padding to provide cushion to a user's arms when sitting in the seating structure 10. In various embodiments, the armrests 58 are vertically adjustable, by way of the armrests 58 moving relative to the side uprights 62. The armrests 58 may have various shapes and forms to provide different aesthetic appearances of the seating structure 10. The armrests 58 may also be omitted from the seating structure 10.
The backrest 22 is coupled to the skirt 50 through a bracket (not shown) extending from the skirt 50. The backrest 22 includes a plurality of backrest segments 70. In the illustrated embodiment, the backrest 22 includes three backrest segments (i.e., a top or first segment 70a, a middle or second segment 70b, and a bottom or third segment 70c). In other embodiments, the backrest 22 may include more than three backrest segment 70, or less than three backrest segments 70, such as the seating 210 structure shown in
With reference to
The front section 74 of each backrest segment 70 includes the rigid substrate 82, a border element 102, a first foam layer 106, and a first fabric layer 108. The rear section 78 of each backrest segment 70 includes the rigid substrate 82, a second foam layer 112, and a second fabric layer 116. The rigid substrate 82 may be considered part of either the front section 74 or the rear section 78 of the backrest 22 or as a separate component from the front and rear sections 74, 78.
With reference to
With continued reference to
With reference back to
The second foam layer 112 of each backrest segment 70 is coupled to the rear side 90 of the rigid substrate 82 using fasteners, adhesives, or the like. Specifically, the second foam layer 112 includes projections 117 that are received in locating holes 118 (
In the illustrated embodiment, the first foam layer 106 is a softer foam, while the second foam layer 112 is a more rigid foam. For example, the first foam layer 106 is made of polyurethane (PU), and the second foam layer 112 may be made from expanded polypropylene (EPP). As such, the first foam layer 106 is softer than the second foam layer 112. In some embodiments, the first and second foam layers 106, 112 may be made from the same material and have the same softness. In other embodiments, the first and second foam layers 106, 112 may be made from other materials. In some embodiments, the second foam layer 112 may be made of a non-foam material. For example, the second foam layer 112 may be replaced by a body having the desired shape and contour, but made of a different material (e.g., wood, blow molded plastic, etc.).
In the illustrated embodiment, the first and second fabric layers 108, 116 are a knit material, such as a 3D knit fabric. In other embodiments, the first and second fabric layers 108, 116 may be a woven material. In other embodiments, the first and second fabric layers 108, 116 may be a different arrangement or formed of different materials or combinations of materials. Further, the first and second fabric layers 108, 116 may be made from the same material. Alternatively, the first and second fabric layers 108, 116 may be made from different materials. The first and second fabric layers 108, 116 may include a variety of patterns, colors, styles, or images that improve the aesthetics of the seating structure 10. In the illustrated embodiment, edges 132 (
Together, the components of the front section 74 (i.e., the border element 102 and the first foam layer 106) of each backrest segment 70 that extend outwardly from the perimeter edge 94 of the rigid substrate 82 and the components of the rear section 78 (i.e., second foam layer 112) of each backrest segments 70 that extend outwardly from the perimeter edge 94 of the rigid substrate 82 define a gap 120 (
When assembling the seating structure 10, the gap 120 provides a relief for the outside seams 136 of the first and second fabric layers 108, 116 to be tucked into around the perimeter edge 94 of the rigid substrate 82. In other words, when the first and second fabric layers 108 are being positioned over the backrest 22, the outside seams 136 formed by the first and second fabric layers 108, 116 are tucked into the gap 120 or recesses 98. The edges 132 of the first and second fabric layers 108, 116 may be tucked simultaneously or together (e.g., when the edges 132 of the fabric layers 108, 116 are coupled together), or may be tucked independently of each other. In some embodiments, a tool may be used to help push the edges 132 of the fabric layers 108, 116 into the gap 120. Further, as the first and second fabric layers 108, 116 are tucked into the recesses 98, the hook and loop strips 128 on the inside seams 136 of the first and second fabric layers 108, 116 are coupled to the hook and loop strips 128 on both the front side 86 and the rear side 90 of the rigid substrate 82. Specifically, the hook and loop strips 128 on the horizontal, inside seams 136 of the first fabric layer 108 are coupled to the hook and loop strips 128 on the profile strips 124. The profile strips 124 distance the first fabric layer 108 away from the front side 86 of the rigid substrate 82 to allow the hook and loop strips 128 to couple together. Tucking the edges 132 of the first and second fabric layers 108, 116 helps tighten the fabric layers 108, 116 to reduce wrinkles on the surfaces of the fabric layers 108, 116. The edges 132 of the fabric layers 108, 116 may be held within the gap 120 simply by friction. In some embodiments, the edges 132 of the fabric layers 108, 116 may also be secured within the gap 120 using fasteners, adhesives, or other suitable means known in the art.
Providing the border elements 102 on the front section 74 of the backrest 22 helps maintain the shape of the backrest 22 when using a softer foam layer such as polyurethane foam (i.e., the first foam layer 106). In addition, the border element 102 helps maintain the rigidity of the first foam layer 106 to keep it from deteriorating over time. Further, the border element 102 assists in creating the gap 120 between the front and rear sections 74, 78 of the backrest 22. The gap 120 provides a relief to any additional fabric not required to cover the front or rear sections 74, 78 of the backrest 22. As such, the gap 120 facilitates easier assembling of the seating structure 10 by not requiring a fitted fabric layer for each different section. In some embodiments, the seat 18 may be designed similar to the backrest 22. Specifically, the seat 18 may include a rigid substrate, a top section, a bottom section and a gap defined therebetween to receive a fabric layer.
Various features and advantages are set forth in the following claims.