Chair

Abstract

The present claimed invention intends to newly provide a convenient chair that is structurally easy to arrange an operating lever and that is easy for a seated person to see a position of the operating lever. The chair is so arranged that multiple seat support frames 41 extend from a center portion of a leg support post 3 toward a direction to be directed away gradually, undersurfaces of edge portions of a seat 1 are supported by distal end portions of the seat support frames 41 , a portion locating both below the seat 1 and between the seat support frames 41, 41 lying next to each other is left open so that the portion can be used as a function adjusting space A 1 through A 3 where an operating part is arranged.

1 . A chair wherein
 multiple seat support frames extend from a center portion of a leg support post toward a direction to be directed away gradually, undersurfaces of edge portions of a seat are supported by distal end portions of the seat support frames, a portion locating both below the seat and between the seat support frames lying next to each other is left open so that the portion can be used as a function adjusting space where an operating part is arranged.   
   
   
       2 . The chair described in  claim 1 , wherein the seat support frames extend radially and support corner portions of the seat, and at least the front below of the seat and the right and left below of the seat are left open. 
   
   
       3 . The chair described in  claim 2 , wherein undersurfaces of corner portions of the seat frame are supported by the four seat support frames. 
   
   
       4 . A chair wherein
 a chair body with an armrest is supported by a seat support structure, the seat support structure is so arranged that multiple seat support frames extend from a center portion of a leg support post toward four corners of a seat and an undersurface of the seat is supported by distal end portions of the seat support frames, an operating part is mounted on a portion near an extending end of at least either one of the two seat support frames locating at the front so that a space surrounding the seat support frame can be used as a function adjusting space.   
   
   
       5 . A chair wherein
 a chair body with an armrest is supported by a seat support structure, the armrest is connected to a back with a rear end part of the armrest extending inward in a plain view, the seat support structure is so arranged that multiple seat support frames extend from a center portion of a leg support post toward four corners of a seat and an undersurface of the seat is supported by distal end portions of the seat support frames, an operating part is mounted on a portion locating both below the rear end part of the armrest and at least either one of the two seat support frames locating at the rear so that a space surrounding the seat support frame can be used as a function adjusting space.   
   
   
       6 . The chair described in any one of  claims 1 - 5 , wherein at least a part of a seat is transparent or translucent so that a position of the operating part arranged in the function adjusting space is visible from the above. 
   
   
       7 . The chair described in any one of  claims 1 - 5 , wherein at least a part of a seat is transparent or translucent so that each position of all of the operating parts arranged in the function adjusting space is visible from the above. 
   
   
       8 . The chair described in  claim 6 , wherein also a general picture of a function of the operating part arranged in the function adjusting space is visible from the above. 
   
   
       9 . The chair described in  claim 6 , wherein the seat has an opening at an inner side of the seat frame and generally whole of the function adjusting space including the operating part is visible through the opening. 
   
   
       10 . The chair described in  claim 6 , wherein at least a part of the operating part is arranged at a portion which is invisible without taking a look at from below on the condition that the seat is opaque, and the operating part is visible through the seat that is transparent or translucent. 
   
   
       11 . The chair described in  claim 6 , wherein the seat is translucent with a mesh member set up inside the seat frame.