| 摘要 |
PROBLEM TO BE SOLVED: To provide a chair which comprises an option body mounted attachably and detachably to a backrest, and can reduce a number of parts needed to attach the option body.SOLUTION: A chair C comprises a resin backrest 3 having multiple holes in intermediate part, and an option body 5 mounted attachably and detachably to the backrest 3. The option body 5 possesses a hooking unit hooking on a hole by sliding to the backrest 3, and a self-locking means self-locking by hooking on the hole in a phase that the hooking unit hooks on the hole. |
