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.

Featured is a magnetic drum assembly including a rotary drum supporting a magnetic head for recording/reproducing information on a magnetic tape and a stationary drum secured to a base of a magnetic recording/reproducing device. In one aspect of the invention, the stationary drum is molded from a resin material together with a metal material partially embedded and partially exposed and being secured at the exposed part of the metal to the base of the magnetic recording/ reproducing device. In an...

A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjac...

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). ...

A tape guiding drum for a magnetic recording and reproducing apparatus including a rotary magnetic head, a lower drum having a cylindrical tape guide surface formed on the upper peripheral portion thereon, and an upper drum having a cylindrical tape guide surface on the lower peripheral portion thereof and disposed above the lower drum so as to leave a slit between the drums, the rotary magnetic head being provided within the slit and the tape being obliquely run around the drums, straddling the...

A magnetic tape guide drum for a magnetic video recording and playback apparatus has a rotary magnetic head and is adapted for guiding a magnetic tape traveling spirally about the drum. The drum includes a rotary drum portion, a stationary drum portion and a shaft secured to the rotary drum portion and supported rotatably by the stationary drum portion for rotating the rotary drum portion. A grounding device is provided in the stationary drum portion and held in sliding contact with the peripher...

A magnetic tape recording and reproducing apparatus such as a VTR apparatus has a chassis, a head drum, and a pair of tape loading members movable on the chassis for keeping a magnetic tape in contact with a peripheral surface of the head drum along a tape path extending over an angular interval. A head drum base for use in the magnetic tape recording and reproducing apparatus comprises a head drum mount adapted to be fastened to the chassis for mounting the head drum thereon, and a pair of stop...

In a tape loading mechanism, a guide groove is formed in a main plate and a drum base that defines the path of a movable tape guide. Each of the main plate and the drum base is provided with a step portion in the thickness direction at a joining area where the drum base is joined to the main plate. These step portions overlap with each other. By using this joining method, a die cast drum base can be thinned so that the dimensional accuracy is improved and a movable tape guide can be moved smooth...

A head drum assembly for use in a video cassette recorder ("VCR") includes a rotary drum, a stationary drum, a rotary transformer including a rotor and a stator transformers, and an amplifier. The amplifier is mounted onto an inner bottom surface of the stationary drum and is electrically connected to a second winding coils of the stator transformer.

The rotary head scanner of a helical scan magnetic tape recording/reproducing apparatus includes a carrier which supports the fixed drum or drums of the scanner by means of full radius contact between the drum and the carrier. A rotary head scanner includes upper and lower stationary drums and a head wheel rotably mounted in a slot between the stationary drums. The head wheel includes one or more magnetic heads mounted on the periphery of the head wheel. The rotating heads record on and reproduc...