Disk cartridge shutter door opener

An opener on a chucking plate inside a disk reader for opening the shutter door of a disk cartridge, comprising:

• a first pin and a second pin fastened to the chucking plate;
• an opener beam having a first end and a second end, wherein the first end forms a pivot point with the first pin so that the opener beam is able to rotate about the pivot point;
• a slot beam having a first end, a second end and a slot, wherein the second pin passes through the slot so that the slot beam is able to slide relative to the second pin, and furthermore the second end is coupled to a section of the opener beam between its two ends;
• a connecting beam whose ends join with the first end of the opener beam and the first end of the slot beam, respectively;
• and
• an extensible element with one end fastened to the opener beam while another end is fastened to the chucking plate.

An opener on a chucking plate inside a disk reader for opening the shutter door of a disk cartridge, comprising:

• a first pin and a second pin fastened to the chucking plate;
• an opener beam having a first end, a second end and a slot, wherein the first pin passes through the slot so that the opener beam is able to slide relative to the first pin;
• a slot beam having a first end, a second end and a slot, wherein the second pin passes through the slot so that the slot beam is able to slide relative to the second pin, and furthermore the second end is coupled to a section of the opener beam between its two ends;
• and
• an extensible element with one end fastened to the opener beam while another end is fastened to the chucking plate.