The idea of developing an Uchiwa into Sensu was inspired from a things that were made by tying wooden strips together (like a present day memo pad) with thread through holes in the end of the wooden strips.
扇子の着想は、一説には、木簡（今で言うメモ帳のような物）を束ねて一端に穴を開け、紐などで繋いだ物が起源であるとされる。