| 摘要 |
<P>PROBLEM TO BE SOLVED: To adjust an amount of air inside an airbag with a sitter sitting down without feeling troublesome in a chair which has a lumber support device equipped with the airbag for changing a pressure sensing state in a waist part of a backrest, a pump for supplying this airbag with air, and a release valve for bleeding the air of the airbag to the outside. <P>SOLUTION: There is prepared the chair which includes a lumbar support device 311 equipped with an airbag 337 for changing the pressure sensing state in the waist part of the backrest, a pump 339 for supplying this airbag 337 with air, a release valve 363 for bleeding the air of the airbag 337 to the outside, and a lumbar support operating lever 341 serving as a common operating lever which activates the pump 339 when the operation of a first mode is applied, and switches the release valve 363 to a bleeding state when the operation of a second mode is applied. <P>COPYRIGHT: (C)2012,JPO&INPIT |
