Medium cassette and image forming apparatus

摘要

A medium cassette is configured to be held and attached to a main body of an image forming apparatus so that the medium cassette slides in an insertion direction or a pullout direction relative to the image forming apparatus. The medium cassette includes a rear side guide for guiding a medium to be placed at a rear side in the pullout direction; a locking member disposed to be able to engage with a body of the medium cassette for regulating a position of the rear side guide relative to the body of the medium cassette; and a movement conversion member for converting a movement of the rear side guide generated by an impact when the medium cassette is attached to the body of the image forming apparatus to a movement of the locking member in a direction that the locking member engages with the body of the medium cassette.

主权项

1. A medium cassette to be attached to a main body of an image forming apparatus so that the medium cassette slides in an insertion direction or a pullout direction relative to the image forming apparatus, comprising:
a rear side guide for guiding a medium to be placed at a rear side in the pullout direction; a locking member disposed to be able to engage with a body of the medium cassette for regulating a position of the rear side guide relative to the body of the medium cassette; and a movement conversion member for converting a movement of the rear side guide generated by an impact when the medium cassette is attached to the main body of the image forming apparatus to a movement of the locking member in a direction that the locking member engages with the body of the medium cassette, wherein said locking member includes an engaging portion at a position where the engaging portion can engage with the body of the medium cassette, said engaging portion includes a first teeth portion having a first pitch, said body of the medium cassette includes a rack extending in the insertion direction thereof and capable of engaging with the engaging portion, said rack includes a second teeth portion having a second pitch greater than the first pitch, and said engaging portion is arranged so that a plurality of teeth of the first teeth portion is situated between two teeth of the second teeth portion of the rack.