Seat device for a chair
a seat and chair technology, applied in the field of seat devices, can solve the problems of user fatigue and pain, uncomfortable sitting, and uncomfortable use, and achieve the effect of improving comfort and convenien
Inactive Publication Date: 2006-04-06
HABITEX
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- Abstract
- Description
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- Application Information
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Benefits of technology
[0006] 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.
Problems solved by technology
Because the synthetic leather 112 and the cotton layer 111 are easily deformed due to different loads they bear, the conventional seat cushion 11 eventually becomes permanently deformed over time, and therefore becomes uncomfortable to use.
As to 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.
Method used
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Embodiment Construction
[0017] Referring to FIGS. 3 and 4, the preferred embodiment of a seat device 3 according to the present invention 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.
[0018] 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.
[0019] 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. In this embodiment, each of the outer sheet layers 31 is made of a stretchable elastic textile material. The stretchable...
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A seat device for a chair includes at least two outer sheet layers made of a stretchable elastic textile material, and an inner sheet layer of a textile material sandwiched by the outer sheet layers. The inner sheet layer has a second marginal part surrounding substantially an entire area thereof and secured to first marginal parts of the outer sheet layers. An 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 that of a respective outer sheet layer 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 same.
Description
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a seat device, more particularly to a seat device for a chair. [0003] 2. Description of the Related Art [0004] Referring to FIGS. 1 and 2, 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′. [0005] Because the synthetic leather 112 and the cotton layer 111 are easily deformed due to different loads they bear, the conventional seat cushion 11 eventually becomes permanently deformed over time, and therefore becomes uncomfortable to use....
Claims
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IPC IPC(8): A47C7/02
CPCA47C5/04A47C7/282
Inventor HSIEH, DUAN-CHENG
Owner HABITEX