Abstract: A head drum device of the present invention prevents a magnetic tape (2) from clinging to the head drum device (3) due to electrostatic charge by using a carbon-containing synthetic resin as the material of an upper drum (33) in order to reduce the manufacturing cost for the upper drum. Also, setting the outside diameter of the upper drum (33) smaller than that of an intermediate drum (32) eliminates the need for a high-level of manufacturing precision in the manufacture of the upper drum (33). Thus, it is possible to reduce the manufacturing cost for the upper drum (33).

Abstract: A magnetic recording and reproducing apparatus which allows a reduction in the necessary space by attaching a rotary head cylinder unit (5) onto a chassis 6 through leaf springs (23) using set screws (22). The rotary head cylinder unit (5) can be fixed onto the chassis (6) with a certain load without causing distortion of the rotary head cylinder unit. Integration of two or more leaf springs (131) improves efficiency in assembling the apparatus and reduces the number of components.