Age-mise (揚げみせ)

http://blogimg.goo.ne.jp/user_image/46/e5/27dc708d600973a0b42cb8e8fb7e623e.jpg
http://blogimg.goo.ne.jp/user_image/46/e5/27dc708d600973a0b42cb8e8fb7e623e.jpg

They are also called battari shōgi (バッタリ床机) in everyday language, due to the sound they make when they are folded down. 

Age-mise were added after the Ōnin war (1467–1477) and were originally used as outside shelves to present the handicraft or merchandise sold by the owner's business and could be folded up when not in use. By the 1920s, however, due to a constant decline in traditionally run businesses, they came to be used as benches. There, the people living in the house would sit and enjoy the evening cool in the summer while chatting. Nowadays, there are only few houses left in Kyōto which still feature an age-mise.