Abstract: To change a case with easy operation from a sale case state engaging with a recording medium to a rental case state accommodating the recording medium in an inner case protruded from a case ceiling side as to be capable of being nipped out, recording medium accommodation means is so constituted as to fix and hold the recording medium to a recording medium engagement member, and the inner case accommodation means accommodating the recording medium is constituted in such a manner as to open and release the recording medium engagement member from a base body, to engage the recording medium engagement means with a ceiling member loosely fitted to a cover of the case, to move the ceiling member loosely fitted to the ceiling side of the cover along a groove of the cover and to fit it loosely near to the bottom surface of the cover and to accommodate the inner case accommodating the recording medium from the ceiling portion so released into the case.

Abstract: Disclosed is an antitheft type of disk container and an associated unlocking tool. The disk container comprises a container body having a disk space and a locking space defined therein, a cover plate hinged to the container body to open and close the disk and locking spaces, and a lock plate to be inserted in the locking space. The unlocking tool has a magnet installed therein. The container body and cover plate are provided with engagement portions in the form of projection or recess, and the lock plate is provided with counter engagement portions in the form of recess or projection, thereby preventing the cover plate from opening by making the engagement portions of the container body and cover plate engage with the counter engagement portions of the lock plate when the cover plate closes the container body with the lock plate inserted in the locking space.

Abstract: Disclosed is an antitheft type of disk container and an associated unlocking tool. The disk container comprises a container body having a disk space and a locking space defined therein, a cover plate hinged to the container body to open and close the disk and locking spaces, and a lock plate to be inserted in the locking space. The unlocking tool has a magnet installed therein. The container body and cover plate are provided with engagement portions in the form of projection or recess, and the lock plate is provided with counter engagement portions in the form of recess or projection, thereby preventing the cover plate from opening by making the engagement portions of the container body and cover plate engage with the counter engagement portions of the lock plate when the cover plate closes the container body with the lock plate inserted in the locking space.

Abstract: A cutting apparatus for cutting a piece of large-sized, printed paper as large as the multiple of a piece of small-sized paper into the multiple number of pieces of small-sized paper each having letters and/or pictures printed thereon such as name cards. The cutting apparatus has two pairs of parallel-arranged rods rotatably supported in its casing. The first pair of parallel-arranged rods has paired sharp blades fixed thereto at a relatively large interval whereas the second pair of parallel-arranged rods has paired sharp blades fixed thereto at a relatively small interval. The two parallel-arranged rods each of the first and second pairs are separated such a predetermined distance as to allow the paired sharp blades to rub circumferentially on each other. A handle is rotatably fixed to the casing, and operatively connected to the two pairs of parallel-arranged rods for turning the paired rods in opposite directions.