US20060071532A1 - Seat device for a chair - Google Patents
Seat device for a chair Download PDFInfo
- Publication number
- US20060071532A1 US20060071532A1 US10/958,310 US95831004A US2006071532A1 US 20060071532 A1 US20060071532 A1 US 20060071532A1 US 95831004 A US95831004 A US 95831004A US 2006071532 A1 US2006071532 A1 US 2006071532A1
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- US
- United States
- Prior art keywords
- outer sheet
- sheet layers
- entire area
- sheet layer
- layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/28—Seat parts with tensioned springs, e.g. of flat type
- A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
Definitions
- the invention relates to a seat device, more particularly to a seat device for a chair.
- a conventional seat cushion 11 , 11 ′ for a chair assembly 1 , 1 ′ is generally supported by a leg assembly 12 , 12 ′.
- the seat cushion 11 shown in FIG. 1 is made by covering a cotton layer 111 with a synthetic leather 112 , thereby providing comfort to a user.
- the seat cushion 11 ′ shown in FIG. 2 is made by molding a fabric sheet into a bowl-shaped fabric cushion 113 , which corresponds to the sitting posture of a user. The fabric cushion 113 is then mounted detachably on a main frame 13 of a modular chair assembly 1 ′.
- the conventional seat cushion 11 eventually becomes permanently deformed over time, and therefore becomes uncomfortable to use.
- the fabric cushion 113 since it is made of a non-stretchable fabric material, it cannot match the body shape of each user, and is thus uncomfortable to sit on. Furthermore, since the fabric cushion 113 is not ergonomically sound, the user may suffer body fatigue and pain during long use of the fabric cushion 113 , and in the worst case, the pain may be severe and the spinal cord may even be injured.
- the object of the present invention is to provide a seat device for a chair that may lay flat in the absence of an external force.
- Another object of the present invention is to provide a seat device for a chair that is comfortable to sit on.
- a seat device for a chair comprises at least two outer sheet layers made of a stretchable elastic textile material, an inner sheet layer of a textile material sandwiched by the outer sheet layers, and an attachment member.
- Each of the outer sheet layers has a first marginal part surrounding substantially an entire area of a corresponding one of the outer sheet layers.
- the inner sheet layer has a second marginal part surrounding substantially an entire area of the inner sheet layer and secured to the first marginal parts.
- the attachment member is associated with the first and second marginal parts, and is adapted to be mounted on the chair.
- the entire area of the inner sheet layer is larger than the entire area of the outer sheet layers so that the inner sheet layer creases when the outer sheet layers lay flat.
- the inner and outer sheet layers form a concaved configuration when a pressure is exerted on the inner and outer sheet layers along a direction transverse to the inner and outer sheet layers.
- FIG. 1 is a schematic side view of a chair incorporating a conventional seat cushion
- FIG. 2 is a schematic side view of a chair incorporating another conventional seat cushion
- FIG. 3 is a perspective view of a modular chair assembly incorporating the preferred embodiment of a seat device of the present invention
- FIG. 4 is an exploded perspective view of the preferred embodiment
- FIG. 5 is an exploded perspective view of the seat device of the present invention in an alternative embodiment
- FIG. 6 is a schematic side view of FIG. 3 ;
- FIG. 7 is a view similar to FIG. 6 , but illustrating the seat device of the present invention in a state of use.
- a seat device 3 is adapted to be mounted on a modular chair assembly 2 .
- the seat device 3 may also be applied to an office chair, a dining chair, etc., and should not be limited to the disclosed embodiment.
- the modular chair assembly 2 includes a ring-shaped main frame 21 , which is made up of a plurality of detachable connecting rods 211 , two substantially U-shaped legs 22 supporting the main frame 21 on a supporting surface, such as the ground, and a plurality of link units 23 interconnecting the main frame 21 and the legs 22 .
- the seat device 3 of the present invention is adapted to be mounted on the main frame 21 of the modular chair assembly 2 , and includes two outer sheet layers 31 , and an inner sheet layer 32 sandwiched by the outer sheet layers 31 .
- each of the outer sheet layers 31 is made of a stretchable elastic textile material.
- the stretchable elastic textile material includes elastomeric polyurethane fibers, and such a material is well known under the trademark “Spandex.”
- the outer sheet layers 31 should not be limited to this embodiment, and may be any other suitable stretchable elastic textile material.
- Each outer sheet layer 31 has a first marginal part 311 surrounding substantially an entire area of a corresponding outer sheet layer 31 .
- the inner sheet layer 32 is made of a textile material, which is not elastic or which is comparatively less elastic than the outer sheet layers 31 .
- the textile material in this embodiment, includes polyethylene terephthalate fibers (Trade Mark “Tetoron,” by Toray Industries Inc.).
- the inner sheet layer 32 has a second marginal part 321 surrounding substantially an entire area of the inner sheet layer 32 .
- the second marginal part 321 is sewn to the first marginal parts 311 .
- the entire area of the inner sheet layer 32 is larger than the entire area of a respective outer sheet layer 31 so that the inner sheet layer 32 creases when the outer sheet layers 31 lay flat.
- the inner and outer sheet layers 32 , 31 When a pressure is exerted on the inner and outer sheet layers 32 , 31 along a direction transverse to the inner and outer sheet layers 32 , 31 , the inner and outer sheet layers 32 , 31 form a concaved configuration.
- the inner sheet layer 32 is substantially bowl-shaped.
- the inner and outer sheet layers 32 , 31 are provided with an attachment member 34 , which is adapted to be mounted on the modular chair assembly 2 .
- the attachment member 34 is formed as a plurality of spaced-apart sleeve portions 342 at the first and second marginal parts 311 , 321 for insertion of the corresponding connecting rods 211 therethrough.
- the sleeve portions 342 are in the form of tubular members and are formed by sewing together the first and second marginal parts 311 , 321 .
- the connecting rods 211 are inserted respectively into the sleeve portions 342 , two ends of each connecting rod 211 are exposed outwardly of the respective sleeve portion 342 so as to connect with the legs 22 through the link units 23 .
- a plurality of male and female snap fasteners 33 are attached to the first and second marginal parts 311 , 321 , as shown in FIG. 5 .
- the sleeve portions 342 of the attachment member 34 are formed when the first and second marginal parts 311 , 321 are folded and the male and female snap fasteners 33 are interengaged, so that the seat device 3 can be mounted detachably on the modular chair assembly 2 . Since the connection of the seat device 3 to the modular chair assembly 2 may be performed using a variety of methods, it should not be limited to those disclosed in the embodiments.
- the outer sheet layers 31 lay flat, while the inner sheet layer 32 is in a creased state.
- the outer sheet layers 31 are stretched elastically due to the weight of the user, and the inner sheet layer 32 is spread from a creased state to a smooth state so that the outer and inner sheet layers 31 , 32 form a concaved configuration, such as a bowl-shaped configuration.
- the inner sheet layer 32 serves to support and add strength to the outer sheet layers 31 .
- the seat device 3 of the present invention is made circular so as to match the shape of the modular chair assembly 2 .
- it may be made non-circular in other embodiments, and should not be limited to the disclosed preferred embodiment.
- the seat device 3 of the present invention is ergonomically friendly, so that the feeling of fatigue by the user following long periods of sitting can be minimized, thereby preventing any injury to the spinal cord of the user. Furthermore, since the components used to assemble the seat device 3 are simple, production costs are minimized. Finally, the seat device 3 of the present invention is applicable to different kinds of chairs since it utilizes a simple mounting method.
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
- 1. Field of the Invention
- The invention relates to a seat device, more particularly to a seat device for a chair.
- 2. Description of the Related Art
- Referring to
FIGS. 1 and 2 , aconventional seat cushion chair assembly leg assembly seat cushion 11 shown inFIG. 1 is made by covering acotton layer 111 with asynthetic leather 112, thereby providing comfort to a user. Theseat cushion 11′ shown inFIG. 2 is made by molding a fabric sheet into a bowl-shaped fabric cushion 113, which corresponds to the sitting posture of a user. Thefabric cushion 113 is then mounted detachably on amain frame 13 of amodular chair assembly 1′. - Because the
synthetic leather 112 and thecotton layer 111 are easily deformed due to different loads they bear, theconventional seat cushion 11 eventually becomes permanently deformed over time, and therefore becomes uncomfortable to use. As to thefabric cushion 113, since it is made of a non-stretchable fabric material, it cannot match the body shape of each user, and is thus uncomfortable to sit on. Furthermore, since thefabric cushion 113 is not ergonomically sound, the user may suffer body fatigue and pain during long use of thefabric cushion 113, and in the worst case, the pain may be severe and the spinal cord may even be injured. - Therefore, the object of the present invention is to provide a seat device for a chair that may lay flat in the absence of an external force.
- Another object of the present invention is to provide a seat device for a chair that is comfortable to sit on.
- According to this invention, a seat device for a chair comprises at least two outer sheet layers made of a stretchable elastic textile material, an inner sheet layer of a textile material sandwiched by the outer sheet layers, and an attachment member. Each of the outer sheet layers has a first marginal part surrounding substantially an entire area of a corresponding one of the outer sheet layers. The inner sheet layer has a second marginal part surrounding substantially an entire area of the inner sheet layer and secured to the first marginal parts. The attachment member is associated with the first and second marginal parts, and is adapted to be mounted on the chair. The entire area of the inner sheet layer is larger than the entire area of the outer sheet layers so that the inner sheet layer creases when the outer sheet layers lay flat. The inner and outer sheet layers form a concaved configuration when a pressure is exerted on the inner and outer sheet layers along a direction transverse to the inner and outer sheet layers.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
-
FIG. 1 is a schematic side view of a chair incorporating a conventional seat cushion; -
FIG. 2 is a schematic side view of a chair incorporating another conventional seat cushion; -
FIG. 3 is a perspective view of a modular chair assembly incorporating the preferred embodiment of a seat device of the present invention; -
FIG. 4 is an exploded perspective view of the preferred embodiment; -
FIG. 5 is an exploded perspective view of the seat device of the present invention in an alternative embodiment; -
FIG. 6 is a schematic side view ofFIG. 3 ; and -
FIG. 7 is a view similar toFIG. 6 , but illustrating the seat device of the present invention in a state of use. - Referring to
FIGS. 3 and 4 , the preferred embodiment of aseat device 3 according to the present invention is adapted to be mounted on amodular chair assembly 2. Theseat device 3 may also be applied to an office chair, a dining chair, etc., and should not be limited to the disclosed embodiment. - The
modular chair assembly 2 includes a ring-shapedmain frame 21, which is made up of a plurality of detachable connectingrods 211, two substantially U-shapedlegs 22 supporting themain frame 21 on a supporting surface, such as the ground, and a plurality oflink units 23 interconnecting themain frame 21 and thelegs 22. - The
seat device 3 of the present invention is adapted to be mounted on themain frame 21 of themodular chair assembly 2, and includes twoouter sheet layers 31, and aninner sheet layer 32 sandwiched by theouter sheet layers 31. In this embodiment, each of theouter sheet layers 31 is made of a stretchable elastic textile material. The stretchable elastic textile material includes elastomeric polyurethane fibers, and such a material is well known under the trademark “Spandex.” However, theouter sheet layers 31 should not be limited to this embodiment, and may be any other suitable stretchable elastic textile material. Eachouter sheet layer 31 has a firstmarginal part 311 surrounding substantially an entire area of a correspondingouter sheet layer 31. - The
inner sheet layer 32 is made of a textile material, which is not elastic or which is comparatively less elastic than theouter sheet layers 31. The textile material, in this embodiment, includes polyethylene terephthalate fibers (Trade Mark “Tetoron,” by Toray Industries Inc.). Theinner sheet layer 32 has a secondmarginal part 321 surrounding substantially an entire area of theinner sheet layer 32. The secondmarginal part 321 is sewn to the firstmarginal parts 311. The entire area of theinner sheet layer 32 is larger than the entire area of a respectiveouter sheet layer 31 so that theinner sheet layer 32 creases when theouter sheet layers 31 lay flat. When a pressure is exerted on the inner andouter sheet layers outer sheet layers outer sheet layers inner sheet layer 32 is substantially bowl-shaped. - The inner and
outer sheet layers attachment member 34, which is adapted to be mounted on themodular chair assembly 2. In this embodiment, theattachment member 34 is formed as a plurality of spaced-apartsleeve portions 342 at the first and secondmarginal parts corresponding connecting rods 211 therethrough. - To enable the
seat device 3 to be detachably mounted on themodular chair assembly 2, during production, thesleeve portions 342 are in the form of tubular members and are formed by sewing together the first and secondmarginal parts rods 211 are inserted respectively into thesleeve portions 342, two ends of each connectingrod 211 are exposed outwardly of therespective sleeve portion 342 so as to connect with thelegs 22 through thelink units 23. - In an alternative embodiment, a plurality of male and
female snap fasteners 33 are attached to the first and secondmarginal parts FIG. 5 . Thesleeve portions 342 of theattachment member 34 are formed when the first and secondmarginal parts female snap fasteners 33 are interengaged, so that theseat device 3 can be mounted detachably on themodular chair assembly 2. Since the connection of theseat device 3 to themodular chair assembly 2 may be performed using a variety of methods, it should not be limited to those disclosed in the embodiments. - Referring to
FIGS. 6 and 7 , when theseat device 3 is mounted on themain frame 21 of themodular chair assembly 2, theouter sheet layers 31 lay flat, while theinner sheet layer 32 is in a creased state. When a user, shown in phantom lines inFIG. 7 , sits on theseat device 3, theouter sheet layers 31 are stretched elastically due to the weight of the user, and theinner sheet layer 32 is spread from a creased state to a smooth state so that the outer andinner sheet layers outer sheet layers 31 are elastic, they can deform according to the body shape and weight of the user to thereby provide comfort to the user. Theinner sheet layer 32 serves to support and add strength to theouter sheet layers 31. When the user stands up from thechair assembly 2, the outer andinner sheet layers - The
seat device 3 of the present invention is made circular so as to match the shape of themodular chair assembly 2. However, it may be made non-circular in other embodiments, and should not be limited to the disclosed preferred embodiment. - From the aforementioned description of the preferred embodiment, it is apparent that the
seat device 3 of the present invention is ergonomically friendly, so that the feeling of fatigue by the user following long periods of sitting can be minimized, thereby preventing any injury to the spinal cord of the user. Furthermore, since the components used to assemble theseat device 3 are simple, production costs are minimized. Finally, theseat device 3 of the present invention is applicable to different kinds of chairs since it utilizes a simple mounting method. - While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/958,310 US7011374B1 (en) | 2004-10-05 | 2004-10-05 | Seat device for a chair |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/958,310 US7011374B1 (en) | 2004-10-05 | 2004-10-05 | Seat device for a chair |
Publications (2)
Publication Number | Publication Date |
---|---|
US7011374B1 US7011374B1 (en) | 2006-03-14 |
US20060071532A1 true US20060071532A1 (en) | 2006-04-06 |
Family
ID=35998684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/958,310 Expired - Fee Related US7011374B1 (en) | 2004-10-05 | 2004-10-05 | Seat device for a chair |
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US (1) | US7011374B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130305583A1 (en) * | 2012-05-21 | 2013-11-21 | Daniel Isaac DREIBAND | Firearm magazine catch apparatus |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD755549S1 (en) * | 2014-08-15 | 2016-05-10 | Idea Nuova, Inc. | Checkered saucer chair |
USD761605S1 (en) | 2014-08-15 | 2016-07-19 | Idea Nuova, Inc. | Webbed saucer chair with seat pad |
US20160066695A1 (en) * | 2014-09-05 | 2016-03-10 | Zenithen USA LLC d/b/a Z Company | Elastic belt chair rest part |
USD756155S1 (en) * | 2014-10-15 | 2016-05-17 | Idea Nuova, Inc. | Woven chair |
USD755551S1 (en) * | 2014-12-02 | 2016-05-10 | Idea Nuova, Inc. | Wicker web chair |
USD756156S1 (en) * | 2014-12-02 | 2016-05-17 | Idea Nuova, Inc. | Wicker saucer lounge chair |
USD755552S1 (en) * | 2014-12-02 | 2016-05-10 | Idea Nuova, Inc. | Wicker saucer chair |
USD752890S1 (en) | 2015-01-08 | 2016-04-05 | Idea Nuova, Inc. | Foldable club chair |
USD756141S1 (en) * | 2015-02-11 | 2016-05-17 | Idea Nuova, Inc. | Saucer chair with seat pad |
USD834866S1 (en) * | 2016-09-23 | 2018-12-04 | W. K. Wu Products Inc. | Partial design of chair |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1450951A (en) * | 1919-07-22 | 1923-04-10 | Heenan & Froude Ltd | Wet-filter screen |
US2127710A (en) * | 1937-02-01 | 1938-08-23 | Ralph B Baker | Furniture construction |
US5747140A (en) * | 1995-03-25 | 1998-05-05 | Heerklotz; Siegfried | Flat upholstered body |
US6152534A (en) * | 1998-03-19 | 2000-11-28 | Ts Tech Co., Ltd. | Seat having seating face made of sheet resilient material |
US6193318B1 (en) * | 1998-06-25 | 2001-02-27 | Daimlerchrysler Ag | Seat arrangement |
-
2004
- 2004-10-05 US US10/958,310 patent/US7011374B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1450951A (en) * | 1919-07-22 | 1923-04-10 | Heenan & Froude Ltd | Wet-filter screen |
US2127710A (en) * | 1937-02-01 | 1938-08-23 | Ralph B Baker | Furniture construction |
US5747140A (en) * | 1995-03-25 | 1998-05-05 | Heerklotz; Siegfried | Flat upholstered body |
US6152534A (en) * | 1998-03-19 | 2000-11-28 | Ts Tech Co., Ltd. | Seat having seating face made of sheet resilient material |
US6193318B1 (en) * | 1998-06-25 | 2001-02-27 | Daimlerchrysler Ag | Seat arrangement |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130305583A1 (en) * | 2012-05-21 | 2013-11-21 | Daniel Isaac DREIBAND | Firearm magazine catch apparatus |
US9010010B2 (en) * | 2012-05-21 | 2015-04-21 | Daniel Isaac DREIBAND | Firearm magazine catch apparatus |
Also Published As
Publication number | Publication date |
---|---|
US7011374B1 (en) | 2006-03-14 |
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Owner name: HABITEX CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HSIEH, DUAN-CHENG;REEL/FRAME:015873/0268 Effective date: 20040920 |
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LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.) |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20180314 |