Abstract: A method of assembling a magnetic tape cartridge where an opening, through which a magnetic tape is drawn out, is provided in part of a sidewall of a cartridge case across a lower half and an upper half of the cartridge case. A slide door that opens and closes the opening is mounted between guide portions provided in the cartridge lower and upper halves, while stressing the slide door with a spring member toward a position in which the opening is closed. During mounting, the slide door is stressed with the spring member toward the position in which the opening is closed by fitting a lower edge of the slide door into the guide portion of the lower half A mounting position of the slide door is retained by holding an end of the slide door facing a direction in which the slide door moves to close the opening.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.

Abstract: A magnetic tape cartridge comprises: a reel 2 around which a magnetic tape MT is wound; a cartridge case 1 for accommodating the reel 2 in a locked state; and a release pad 5 inserted into a cup-shaped hub 2A of the reel 2 in a locked state of the reel 2. The release pad 5 includes a pad body 5A having a plurality of corners to be faced proximately to the inner peripheral surface 2C of the cup-shaped hub 2A, and a plurality of lock releasing pins 5B projecting downwardly from a bottom surface of the pad body 5A at the respective corners and inserted through a bottom surface of the cup-shaped hub 2A. The release pad 5 is provided with a flank 5E extending from each corner downwardly through the respective lock release pin 5B so that an assembling clearance is formed with respect to an inner periphery of a flange 2G position in an open side of the cup-shaped hub 2A.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The cartridge having an assembly support device that guides a distal end of a spring support rod onto a support rod receiving block when the slide door is fitted in a lower half of the cartridge case. A proximal end of the spring support rod projects from the slide door, and a compression coil spring is wound around the spring support rod.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.

Abstract: A magnetic tape cartridge comprises: a reel 2 around which a magnetic tape MT is wounded; a cartridge case 1 for accommodating the reel 2 in a locked state; and a release pad 5 inserted into a cup-shaped hub 2A of the reel 2 and releasing the locked state of the reel 2. The release pad 5 includes a pad body 5A having a plurality of corners to be faced proximately to the inner peripheral surface 2C of the cup-shaped hub 2A, and a plurality of lock releasing pins 5B projecting downwardly from a bottom surface of the pad body 5A at the respective corners and inserted through a bottom surface of the cup-shaped hub 2A. The release pad 5 is provided with a flank 5E extending from each corner downwardly through the respective lock releasing pin 5B so that an assembling clearance is formed with respect to an inner periphery of a flange 2G positioned in an open side of the cup-shaped hub 2A.

Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.