Cap apparatus for liquid jetting head and liquid jetting apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsTatsuya Shindo, Takamasa Usui
Life of this patent
Estimating the term…
Abstract
A cap apparatus includes a cap which seals nozzles of a liquid jetting head, an absorber which is accommodated tightly inside the cap, a cap holder which is accommodated tightly inside the cap, and a holder which has a holding body which makes a contact with an upper surface of the absorber, a pin which is protruded downward from the holding main portion, and an engaging portion which is provided on a front end of the pin. Through holes which make the cap, the absorber, and the cap holder communicate, are formed in the cap, the absorber, and the cap holder. Since the through holes function as a passage, it is possible to improve an assembling workability of the cap apparatus.
Claims18
A cap apparatus which covers a nozzle surface, of a liquid jetting head, in which a plurality of nozzles jetting a liquid is formed, the cap apparatus comprising:
- a cap holder which includes a first recess formed therein, and a first through hole formed in a bottom of the first recess;
- a cap which is accommodated inside the first recess to seal the nozzle surface, which is formed by an elastic member having a second recess formed therein, and which has a second through hole communicating with the first through hole and formed in a bottom of the second recess;
- an absorber which is accommodated inside the second recess of the cap to absorb the liquid, and which includes a third through hole communicating with the first through hole and the second through hole and formed to penetrate through a lower surface up to an upper surface of the absorber, the lower surface facing the bottom of the second recess;
- and
- a holding member which holds the absorber and the cap and which has a contacting portion which makes a contact with the upper surface of the absorber, a pin which protrudes from the contacting portion, and an engaging portion which is provided on a front end of the pin;
- wherein the pin is inserted through the second through hole and the third through hole, and the engaging portion is engaged with the first through hole, so that the absorber and the cap are clamped between the contacting portion and the cap holder.
A liquid jetting apparatus which jets a liquid, comprising:
- a liquid jetting head having a nozzle surface in which a plurality of nozzles jetting a liquid is formed;
- a cap apparatus covering a nozzle surface of the liquid jetting head and including:
- a cap holder which includes a first recess formed therein, and a first through hole formed in a bottom of the first recess;
- a cap which is accommodated inside the first recess to seal the nozzle surface, which is formed by an elastic member having a second recess formed therein, and which has a second through hole communicating with the first through hole and formed in a bottom of the second recess;
- an absorber which is accommodated inside the second recess of the cap to absorb the liquid, and which includes a third through hole communicating with the first through hole and the second through hole and formed to penetrate through a lower surface up to an upper surface of the absorber, the lower surface facing the bottom of the second recess;
- and
- a holding member which holds the absorber and the cap and which has a contacting portion which makes a contact with the upper surface of the absorber, a pin which protrudes from the contacting portion, and an engaging portion which is provided on a front end of the pin;
- and
- a suction unit which generates a negative pressure;
- wherein the pin is inserted through the second through hole and the third through hole, and the engaging portion is engaged with the first through hole, so that the absorber and the cap are clamped between the contacting portion and the cap holder;
- wherein a suction hole which propagates the negative pressure to a space which is sealed by the liquid jetting head and the cap body is formed penetrating through the bottom of the first recess of the cap holder and the bottom of the second recess of the cap body;
- and
- wherein the suction unit is connected to the suction hole.
Dependencies are inferred from the claim text.