Abstract: There is disclosed a solder ball pitcher supplying a large number of solder balls stored in a solder ball housing chamber in a row into a solder ball supply passage unit through a taper portion, and then delivers the solder balls in sequence through a solder ball supply opening at the tip end of the solder ball supply passage unit by a swing motion of the release link in case of allowing a release lever reciprocated by a pusher and a compressive coil spring to translate by a parallel link composed of the release link and a follower link.

Abstract: There is disclosed a solder ball pitcher supplying a large number of solder balls stored in a solder ball housing chamber in a row into a solder ball supply passage unit through a taper portion, and then delivers the solder balls in sequence through a solder ball supply opening at the tip end of the solder ball supply passage unit by a swing motion of the release link in case of allowing a release lever reciprocated by a pusher and a compressive coil spring to translate by a parallel link composed of the release link and a follower link.

Abstract: In a disk storage having a front loading structure, a disk tray can smoothly move between a first position and a second position. The disk tray has a tray panel with a surface corresponding to an opening of a storage body. Since the surface is larger than the opening, this disk storage has a dustproof function superior to the conventional one. In addition, since an elastic member is provided generally around the opening, the tray panel will not get damaged even when the tray panel encloses the opening. The storage body may comprise cooling means for preventing the rising of the internal temperature thereof, so that malfunctioning of the parts can be prevented and the life of each part can be extended. The elastic member may comprise a sponge.