Sitting posture assistance device

Abstract

Provided is a sitting posture assistance device that does not readily inhibit body movement. A sitting posture assistance device is an assistance device that assists a person's posture when sitting, and is provided with a supporting part. The supporting part is configured to extend along the spine so as to support the spine of a person who is in a sitting posture from behind. The supporting part has a curved shape corresponding to the curve of the spine.

1 . A sitting posture assistance device comprising:
 a supporting part configured to extend along a spine of a person who is in a sitting posture so as to support the spine from behind,   wherein the supporting part has a curved shape corresponding to a curve of the spine.   
     
     
         2 . The sitting posture assistance device according to  claim 1 , wherein the curved shape of the supporting part is elastically deformable. 
     
     
         3 . The sitting posture assistance device according to  claim 1 , wherein the supporting part has shape memory. 
     
     
         4 . The sitting posture assistance device according to  claim 1 , wherein a groove portion configured to extend in a direction in which the supporting part extends is formed in a surface of the supporting part that opposes the spine. 
     
     
         5 . The sitting posture assistance device according to  claim 4 , wherein the groove portion has a width from 1 cm to 3 cm inclusive. 
     
     
         6 . The sitting posture assistance device according to  claim 1 , wherein the supporting part has a width from 5 cm to 10 cm inclusive. 
     
     
         7 . The sitting posture assistance device according to  claim 1 , wherein the supporting part has a length of 30 cm or more. 
     
     
         8 . The sitting posture assistance device according to  claim 1 ,
 wherein the supporting part consists of a plurality of unit parts coupled in a direction in which the supporting part extends, and   the unit parts that are adjacent are turnable with respect to each other about an axis parallel to a right-left direction of a body.   
     
     
         9 . The sitting posture assistance device according to  claim 1 , comprising a latching part configured to be attached to the supporting part and to latch onto a backrest of a chair. 
     
     
         10 . The sitting posture assistance device according to  claim 9 , wherein an attachment position of the latching part to the supporting part is variable. 
     
     
         11 . The sitting posture assistance device according to  claim 9 , wherein the latching part is attachable and detachable with respect to the supporting part. 
     
     
         12 . The sitting posture assistance device according to  claim 1 , comprising a fixing part configured to be connected to a lower end of the supporting part and to be interposed between a posterior of the person who is in the sitting posture and a seating surface. 
     
     
         13 . The sitting posture assistance device according to  claim 12 , wherein the fixing part is foldable with respect to the supporting part. 
     
     
         14 . The sitting posture assistance device according to  claim 12 , wherein the fixing part has a greater width than the supporting part. 
     
     
         15 . The sitting posture assistance device according to  claim 12 , wherein the fixing part has a smaller thickness than the supporting part. 
     
     
         16 . The sitting posture assistance device according to  claim 12 , wherein the fixing part is attachable and detachable with respect to the supporting part.