Paper feeding cassette and paper feeding device
View Patent ↗An aspect of the invention provides a paper feeding cassette that comprises a cassette body; a front face wall disposed at a front end of the cassette body so as to be elevated from a bottom wall of the cassette body; a medium-stacking member disposed so as to be swingable about a support shaft relative to the cassette body by using the support shaft as a swinging center, the medium-stacking member configured to have a medium thereon stacked inside the cassette body; and a biasing unit configured to bias the medium-stacking member so as to bring the medium into contact with a feeder, wherein the front face wall comprises a face which regulates the medium along a trajectory drawn by a front end of the medium-stacking member in accordance with a swinging movement of the medium-stacking member.
1. A paper feeding cassette, comprising:
a cassette body;
a front face wall disposed at a front end of the cassette body so as to be elevated from a bottom wall of the cassette body;
a medium-stacking member disposed so as to be swingable about a support shaft relative to the cassette body by using the support shaft as a swinging center, the medium-stacking member configured to have a medium thereon stacked inside the cassette body; and
a biasing unit configured to bias the medium-stacking member so as to bring the medium into contact with a feeder,
wherein the front face wall comprises a face which regulates the medium along a trajectory drawn by a front end of the medium-stacking member in accordance with a swinging movement of the medium-stacking member;
wherein the front face wall comprises a face having a radius of curvature substantially equal to a radius of curvature of the trajectory drawn by the front end of the medium-stacking member in accordance with the swinging movement of the medium-stacking member.
2. The paper feeding cassette of claim 1 , wherein the radius of curvature of the trajectory drawn by the front end of the medium-stacking member is a distance between the support shaft and a position where a leading end of a lowermost medium stacked on the medium-stacking member comes in contact with the front face wall.
3. The paper feeding cassette of claim 1 , wherein a distance from the support shaft to a lowest point of the front face wall is substantially equal to a distance from the support shaft to the front face wall that is in parallel to the medium-stacking member.
4. The paper feeding cassette of claim 1 , wherein the front face wall is inclined in a portion higher than a height from the medium-stacking member to the support shaft.
5. A paper feeding device, comprising:
a body including
a feeder configured to feed a medium; and
a paper feeding cassette detachably provided to the body, the paper feeding cassette including:
a cassette body;
a front face wall disposed at a front end of the cassette body so as to be elevated from a bottom wall of the cassette body;
a medium-stacking member disposed so as to be swingable about a support shaft relative to the cassette body by using the support shaft as a swinging center, the medium-stacking member configured to have a medium thereon stacked inside the cassette body; and
a biasing unit configured to bias the medium-stacking member so as to bring the medium into contact with the feeder,
wherein the front face wall comprises a face which regulates the medium along a trajectory drawn by a front end of the medium-stacking member in accordance with a swinging movement of the medium-stacking member;
wherein the front face wall comprises a face having a radius of curvature substantially equal to a radius of curvature of the trajectory drawn by the front end of the medium-stacking member in accordance with the swinging movement of the medium-stacking member.