Abstract: An elevation mechanism for elevating a support member (7) of a picker (6) is suspended at its both ends by strings (17, 18). The strings (17, 18) are stretched to a pull-driving portion disposed at the back of aligned positions of information-storage regular articles (2) and in an upper portion of an information reader (5) through guide rollers (21, 22, 23, 24) located in an upper part of a housing (1).