Abstract: A disk apparatus has a slider cam, disk tray, and reproducing assembly. The slider cam has a cam groove. The slider cam moves between a first position and a second position, to retract a disk tray into the apparatus and extend from the apparatus, respectively. The reproducing assembly has a cam follower guided in the cam groove to move between a reproducing position and a non-reproducing position. The cam groove has first, second, and third grooves. The third groove connects the first and second grooves together. The first groove has a groove wall that extends substantially perpendicularly to the axis. The cam follower moves along the first groove to collide against the wall when a shock is given to the apparatus during transportation, thereby preventing the disk tray from popping out of the apparatus inadvertently.

Abstract: A disk apparatus has a slider cam, disk tray, and reproducing assembly. The slider cam has a cam groove. The slider cam moves between a first position and a second position, to retract a disk tray into the apparatus and extend from the apparatus, respectively. The reproducing assembly has a cam follower guided in the cam groove to move between a reproducing position and a non-reproducing position. The cam groove has first, second, and third grooves. The third groove connects the first and second grooves together. The first groove has a groove wall that extends substantially perpendicularly to the axis. The cam follower moves along the first groove to collide against the wall when a shock is given to the apparatus during transportation, thereby preventing the disk tray from popping out of the apparatus inadvertently.

Abstract: A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

Abstract: A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on said disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

Abstract: A turntable is a table mounted to a shaft (4) of a spindle motor and the turntable supports a laminated disc thereon and drives the disc in rotation. The laminated disc includes a lower disc and an upper disc stacked on the lower disc, and is supported on a disc-supporting surface. When the disc is loaded on the turntable, a fitting member fits into the center hole of the laminated disc for centering the laminated disc with respect to the shaft. The fitting member fits the center hole of the lower disc when the laminated disc is supported on the disc-supporting surface. The turntable may include a tapered member which guides the laminated disc to the disc-supporting surface. The laminated disc includes lower and upper discs each having an edge which defines the center hole. The corners of the edges are cut away along a circumference of the center hole. The upper and lower discs are placed together so that the cut-away corner directly face each other.

Abstract: A magnetic recording/reproducing apparatus being able to use a normal-sized cassette and a small sized cassette according to a user's selection. The apparatus comprises a supply reel stand for engaging with a supply reel; a supply reel stand base for supporting the supply reel stand; a take-up reel stand for engaging with a take-up reel; a take-up reel stand base for supporting the take-up reel stand; a reel stand displacing mechanism for displacing the supply reel stand base and the take-up reel stand base according to a size of the normal-sized cassette and a size of the small sized cassette. The reel stand displacing mechanism displaces the supply reel stand base and the take-up reel stand base by using a drive force transmitted from the tape loading mechanism.