Ink cartridge and mount/demount mechanism for the same
AssigneeRiso Kagaku Corporation
InventorsHirotaka Tominaga, Norihisa Shimamura
Life of this patent
Estimating the term…
Abstract
An ink cartridge includes: an ink storage container configured to store ink; a socket portion provided at one end of the ink storage container and configured to be fitted to and detached from a joint portion of a printing machine; an ink supply port provided in the socket portion; an inside plug configured to seal an ink passage to the ink supply port by using a biasing force coming from a direction of the ink storage container; and an inside plug lock portion configured to lock the inside plug at a position where the inside plug is pressed by an insertion shaft, and maintain a locked state of the inside plug independently of a retreating of the insertion shaft to a retreat position after a locking of the inside plug.
Claims8
An ink cartridge comprising:
- an ink storage container configured to store ink;
- a socket portion provided at one end of the ink storage container and configured to be fitted to and detached from a joint portion of a printing machine;
- an ink supply port provided in the socket portion;
- an inside plug configured to seal an ink passage to the ink supply port by using a biasing force coming from a direction of the ink storage container;
- and
- an inside plug lock portion configured to lock the inside plug at a position where the inside plug is pressed by an insertion shaft, and maintain a locked state of the inside plug independently of a retreating of the insertion shaft to a retreat position after a locking of the inside plug, the insertion shaft being capable of advancing and retreating between a pressing portion and the retreat portion, the pressing portion being a position where the insertion shaft presses the inside plug against the biasing force and thereby unseals the ink passage when the socket portion and the joint portion are fitted to each other, the retreat position being a position where the insertion shaft retreats to outside of the ink supply port.
An ink cartridge mount/demount mechanism comprising:
- a joint portion provided in a printing machine;
- and
- a socket portion provided on a distal end side of an ink cartridge,
- the joint portion and the socket portion configured such that the socket portion is detachably fitted to the joint portion and ink in an ink storage container attached to a rear end side of the socket portion is supplied to the printing machine from the socket portion via the joint portion, wherein
- the joint portion includes:
- a joint body provided to face the socket portion;
- and
- an insertion shaft capable of advancing and retreating between a pressing position of pressing the socket portion by protruding forward in the joint body and a retreat position retreating to a position rearward of the pressing position, and
- the socket portion including:
- a socket body including an ink supply port on a side of the socket body facing the joint body;
- an inside plug housed in the socket body to seal an ink passage to the ink supply port by using a biasing force coming from a direction of the ink storage container and configured to unseal the ink passage by staying at a position where the inside plug is pressed by the insertion shaft at the pressing position against the biasing force when the socket portion is fitted to the joint body;
- and
- an inside plug lock portion configured to lock the inside plug at the position where the inside plug is pressed by the insertion shaft, and maintain a locked state of the inside plug independently of a retreating of the insertion shaft to a retreat position outside of the ink supply port after a locking of the inside plug.
Dependencies are inferred from the claim text.