Abstract: A structure for preventing the dislocation of a spring is provided in an optical disk cartridge wherein a shutter (23) is opened and closed in accordance with a sliding movement of a sliding jig (24) provided in the inner portion of the shutter and joined to the spring contacting portions of cartridge case via a spring (27). The spring contacting portions of the cases consist of the surfaces of a contacting wall (32), and upper (33) and lower (34) walls extending from the contacting wall, the lower wall being provided with a spring dislocation preventing projection (36).

Abstract: A book case type optical disk storage container adapted to house a cartridge type optical disk with its shutter opened, the container being characterized in that one storage surface of the container is provided with a shutter stopper for keeping the shutter open, and a projection for supporting an optical disk base rotatably, the other storage surface being provided with a disk rotating jig and a disk base cleaning device. A structure for preventing the dislocation of a spring is provided in the optical disk cartridge wherein a shutter is opened and closed in accordance with a sliding movement of a sliding jig provided in the inner portion of the shutter and joined to the spring contacting portions of cartridge case via a spring. The spring contacting portions of the cases consist of the surfaces of a contacting wall, and upper and lower walls extending from the contacting wall, the lower wall being provided with a spring dislocation preventing projection.

Abstract: A ticket issuing device for a ticket machine according to the present invention comprises a holding plate for receiving thereon tickets fed one by one from a data writing station by a feeding mechanism and for temporarily holding the tickets in a layered condition thereon, a receiving plate located adjacent a ticket issuing port, and an operating member for discharging tickets on the holding plate onto the receiving plate when an issuing signal is issued. Thus, a plurality of tickets can be discharged at a time onto the receiving plate, thereby giving facilities to a person who tries to receive the tickets. The device further comprises a transferrer constituted by electromagnets, the holding plates, and a mechanism interconnecting them which operates when an issue stopping signal is issued to transfer tickets on the holding plate toward a storage. Thus, tickets to be withdrawn are automatically transferred into the storage, thereby giving facilities to a withdrawing person.

Abstract: A head retainer for retaining a magnetic head is mounted to a carrier adapted to reciprocate toward a center of a driving shaft for driving a magnetic disc and includes an azimuth adjusting mechanism for varying a direction of the head retainer with respect to a rotative axis parallel to the driving shaft and a head orientation adjusting mechanism for letting the head retainer approach to or move away from the magnetic disc and incline relative to the same plane as the magnetic disc. With this arrangement, when a position and orientation of the magnetic head are varied during or after assembling of the device, such variation may be accurately corrected.

Abstract: A magnetic disk driving device in which, by closure of an outer cover, a magnetic disk is press-fitted on a spindle by push members without producing any play and the rotating surface of the magnetic disk is fixed by a regulating member. By clamping of the outer cover, which is effected when the outer cover has reached the position closest to a base and then slightly retreated therefrom, the push members are separated from the magnetic disk by means of relative movement of the outer cover and a plate with the positional relationship between the magnetic disk and the regulating member kept as it is.

Abstract: The sheet supply device comprises a sheet stocker including a lifting table mounted for up and down movement with a large number of sheets accumulated in layers thereon which sheets are different in thickness between opposite sides thereof and a paper feed roller for contacting with an uppermost one of the sheets, a string having one end fastened to each of opposite sides of the lifting table corresponding to the opposite sides of the sheets providing the difference in thickness, a first take-up drum or drums located corresponding to the thicker side of the sheets and each having the other end of the string corresponding to the thicker side of the sheets fastened thereto, a second take-up drum or drums located corresponding to the thinner side of the sheets and each having the other end of the string corresponding to the thinner side of the sheets fastened thereto.