Abstract:
A storable structure of the table and chair includes a tabletop and at least one chair member positioned adjacent the tabletop. Each of the at least one chair member includes a chair, a lifting device and a sliding device. The lifting device connects to the chair for vertically moving the chair. The sliding device connects to the lifting device and the tabletop. The chair slides horizontally via the sliding device for storage under the tabletop.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a storable structure of table and chair, and more particularly to a structure for storage at least one chair under a table and lifting or lowering the chair from the floor. 
         [0003]    2. Description of Related Art 
         [0004]    A conventional combination table and chairs in accordance with the prior art comprises a table which is supported by support members extending from the table beyond the plane of the table and connecting with the chair members, with the points of connection of the support members to the table and chairs lying substantially in a common vertical plane. The chair seat members are mounted for movement in all directions in the plane of the seat. 
         [0005]    However, the prior art suffered from several disadvantages. Due to the complicated structure of the combination table and chairs, the chairs are not able to be moved freely on the floor. For the reason, a user can not easily move the chair to a suitable position from the edge of the table. Moreover it is inefficient and difficult to detach the chairs from the table since many tubular supports are used in the combination of the table and chairs. Therefore this is not convenient to store the chairs and save the space. 
         [0006]    The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional combination table and chairs. 
       SUMMARY OF THE INVENTION 
       [0007]    The main objective of the present invention is to provide an improved storable structure of table and chair, 
         [0008]    To achieve the objective, the storable structure of the table and chair includes a tabletop and at least one chair member positioned adjacent the tabletop. Each of the at least one chair member includes a chair, a lifting device and a sliding device. The lifting device connects to the chair for vertically lifting or lowering the chair. When a force is applied downwardly to the chair, the chair is lowered to adapt to abut against a floor so as to be sat stably by a person, and when the force is released, the chair is lifted upwardly by the lifting device. The sliding device which connects to the lifting device and the tabletop has a guild rail and a cantilever, the guide way is attached underneath the tabletop. The cantilever connects the chair and the guide rail. The chair slides horizontally along the guide rail so as to be storable under the tabletop. 
         [0009]    Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]      FIG. 1  is a perspective view of a preferred embodiment of the storable structure of table and chair as the chair is stored under the tabletop; 
           [0011]      FIG. 2  is a side view of the preferred embodiment of the storable structure of table and chair as the chair is stored under the tabletop; 
           [0012]      FIG. 3  is an operational perspective view of the preferred embodiment of the storable structure of table and chair as the chair is pulled out and a force is applied on the chair; 
           [0013]      FIG. 4  is an operational side view of the preferred embodiment of the storable structure of table and chair as the chair is pulled out and a force is applied on the chair; 
           [0014]      FIG. 5  is a perspective view of a second embodiment of the storable structure of table and chair; and 
           [0015]      FIG. 6  is a perspective view of a third embodiment of the storable structure of table and chair. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0016]    Referring to the drawings and initially to  FIGS. 1-4 , a storable structure of table and chair in accordance with a preferred embodiment of the present invention comprises a tabletop  10  and at least one chair member  2  which positions adjacent the tabletop  10 . 
         [0017]    Each of the at least one chair member  2  comprises a chair  20  and a lifting device  40  movably connected to the chair  20 . The chair  20  comprises a seat  21  and a chair base  22  having an upper end pivotally attached to the seat  21 . The chair base  22  has a support post  221  which one end is used to vertically support the seat  21  thereatop and the other end is mounted on a support base  222 . The chair  20  has a plurality of casters  223  underneath the support base  222  for abutting against a floor. Therefore the chair  20  moves freely on the floor via the casters  223 . 
         [0018]    The lifting device  40  movably connected to the chair base  22  is a spring member. The lifting device  40  comprises a vertical sleeve  41  sleeved on the support post  221  and having a receiving space  44  defined between the support post  221  and the vertical sleeve  41 . The lifting device  40  further includes a spring  43  and a flange  42  which both are accommodated in the receiving space  44 . The spring  43  is compressible and sleeved on the support post  221 . One end of the spring  43  abuts against a bottom of the flange  42  and the other end of the spring  43  abuts against an inner bottom of the vertical sleeve  41 . The flange  42  is fixed to the support post  221  and thereby moves upwardly or downwardly with the chair  20 . When a force is applied downwardly, the chair  20  is lowered to abut against the floor. The chair  20  is lifted upwardly by the spring  43  when the force is released. 
         [0019]    The chair member  2  further comprises a sliding device  30  connected to the lifting device  40  and the tabletop  10 . The sliding device  30  comprises a guide rail  31  attached beneath the tabletop  10  and a cantilever  32  connected to the guide rail  31  and the lifting device  40 . The guide rail  31  has a T-shaped groove  311  forming at least one opening outwardly to the edge of the tabletop  10 . The cantilever  31  has a first portion  321  corresponding to the T-shaped groove  311 , a vertical portion  323  and a second portion  322 . Both end of the vertical portion  323  respectively connect to the first portion  321  and the second portion  322  in an L shape, and thus the first portion  321  is perpendicular to the second portion  322 . The first portion  321  is parallelly received in the T-shaped groove  311  and slidably moves along the T-shaped groove  311 . The second portion  322  attaches to the vertical sleeve  41  for supporting the chair  20  away from the floor. Thereby the chair  20  slidably moves along the guild rail  31  relatively to the tabletop  10 . 
         [0020]    As shown in  FIGS. 1-2 , the vertical sleeve  41  of the lifting device  40  is supported by the cantilever  32 , and the spring  43  is in unloaded condition. Therefore the chair  20  is held away from the floor by the cantilever  32 . Furthermore the chair  20  slidably moves along the guide rail  31  by the sliding device  30  for storage under the tabletop  10 . 
         [0021]    As shown in  FIGS. 3-4 , when a force is applied downwardly on the seat  21 , the flange  42  descends and thus compresses the spring  43 . The chair  20  moves downwardly to abut against the floor so as to be sat stably by a person. The spring  43  is compressed between the flange  42  and the inner bottom of the vertical sleeve  41  which is held by the cantilever  32 . When the force is released, the spring  43  pushes the flange  42  upwardly, and thus the chair  20  is lifted by the spring  43 . 
         [0022]    Furthermore, the lifting device  40  is adjustable by different loading. Thereby the chair  20  is suitable for persons in different weight. 
         [0023]    In another embodiment, the lifting device  40  may be a pneumatic cylinder or a set of worm and gear. 
         [0024]      FIG. 5  shows a second embodiment of a storable structure of table and chair according to the present invention. The elements and effects of the second embodiment which are the same with the preferred embodiment are not described, only the differences are described. The tabletop  10  is configured in a shape of square, rectangular, or other configurations. In this embodiment, the tabletop  10  is in the shape of square, and disposed four chair members  2  at four sides of the tabletop  10  respectively. And each of the chair members  2  has the chair  20  with a rest back  23 . The chair  20  is stored under the tabletop  10  and the rest back  23  of the chair  20  abuts against the edge of the tabletop  10 . 
         [0025]      FIG. 6  is a general illustration of a third embodiment of a storable structure of table and chair. The elements and effects of the third embodiment which are the same with the preferred embodiment are not described, only the differences are described. The tabletop  10  is configured in a round shape. Ten chair members  2  are disposed to surround the tabletop  10 , and each of the seats  21  is configured in a round shape. 
         [0026]    Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.