JP3156855U - Cap member - Google Patents

Abstract

Provided is a cap member capable of stably filling ink without leaking outside when filling ink. A cap member (1) includes a lid member (2) covering an ink supply port of an ink storage container for storing ink, and engaging portions (6, 7) for positioning the ink storage container. A through hole 5 that communicates with the mouth and penetrates from one end of the lid member 2 to the other end, and a plug member that can be attached to and detached from the through hole 5 are provided. [Selection] Figure 1

Description

  The present invention relates to a cap member as a jig for sealing an ink supply port of an ink storage container for storing ink and filling the ink.

  In recent years, many types of ink storage containers used in inkjet printers have been sold.

Patent Document 1 states that “a first storage chamber having an air communication port for storing a negative pressure generating member and obtaining communication with the atmosphere, and a minute communication portion provided at a position away from the air communication port. A second storage chamber for directly storing ink to be supplied to the first storage chamber in a substantially sealed state, but communicating with the first storage chamber only through the first storage chamber. An ink refilling port for refilling ink that enables ink refilling to the ink jet cartridge from the second storage chamber, and a sealing member removable from the ink refilling port An ink jet cartridge characterized by comprising:

In paragraph [0211] of the document, “an ink refilling container having an bellows structure having an ink injection nozzle filled with ink in the second storage chamber in FIG. 45 and ink 9 for refilling” is shown. The ink refill port is an example in which an opening larger than the outer diameter of the ink injection nozzle is formed, and Fig. 47b shows an opening equal to or slightly smaller than the outer diameter of the ink injection nozzle. In any case, when the ink is refilled, the ink is preferably filled into the second storage chamber. ”Ink of the bellows structure is described. The refilling container 48 indicates that the ink is dropped from the ink refilling port or the bellows is crushed to press-fit the ink.

In Patent Document 2, in the paragraph [0013], an ink cartridge simple filling unit that connects an ink bottle filled with ink to an air hole, sucks the ink bottle from an ink supply port with a syringe, decompresses the ink, and fills the ink container with ink. Is disclosed.

Japanese Patent No. 3224443 Japanese Patent Application No. 2006-139398 (P0011)

However, when the inventor fills the ink storage container with the ink filled in the bellows container according to Patent Document 1, the ink adhering to the periphery of the ink filling hole overflows with the air coming out of the ink chamber, and the Occasionally, there was a phenomenon that contaminated the equipment. That is, the present inventor has found that there is a problem in the air discharging method when ink is dropped or pressed into the sealed container from the small hole as in the above document.

  The inventor is composed of two chambers, an ink chamber filled with ink and a negative pressure material chamber in which a negative pressure generating member is inserted, and an air hole and an ink supply port are provided on the negative pressure material chamber side. When the ink supply port is sucked into the ink cartridge with a syringe according to Patent Document 2 and ink is filled into the ink cartridge from the air hole, the negative pressure material chamber is filled with ink before the ink chamber is filled with ink, If ink is sucked into the cylinder of the syringe and the ink chamber is not sufficiently filled with ink, and the ink cartridge filled with ink in this way is mounted on the printer and the ink supply port is turned downward, the ink supply I found that there was a problem of ink leaking from the mouth.

An object of the present invention is to provide a cap member that can be filled without leaking the ink when the ink storage container such as the two-in storage container described in Patent Document 1 is filled without leaking to the outside and can be sealed. Is to provide.

As a result of intensive studies to achieve the above object, the ink container of the present invention has been completed. That is, the present invention is as follows.
(1) A cap member having a lid member that covers an ink supply port of an ink storage container that stores ink and an engaging portion that positions the ink storage container,
The cap member includes a through hole that communicates with the ink supply port and penetrates from one end to the other end of the lid member, and a cap member that is detachable from the through hole. Element.
(2) The ink storage container is generally box-shaped in which an upper surface, a bottom surface, a front surface, a rear surface, and a pair of side surfaces connecting these are configured as main surfaces, the first locking member positioned on the rear surface side, A second locking member located on the front surface side, a negative pressure chamber having an atmospheric hole for introducing air and containing a negative pressure generating member, an ink filling hole for filling ink, and adjacent to the negative pressure chamber. And an ink chamber that is a space for storing ink, a partition wall that partitions the negative pressure chamber and the ink chamber, and a communication portion that communicates the negative pressure chamber and the ink chamber, and the ink supply port is , A container that protrudes outward from the negative pressure chamber side of the bottom surface and is filled with a porous member,
The above-mentioned (1), wherein the engaging portion includes a first engaging portion that engages with the first locking member, and a second engaging portion that engages with the second locking member. ) Cap member.
(3) In the above (2), the cap member includes a storage portion that covers the lower surface and the entire bottom surface of the front surface, the rear surface, and the pair of side surfaces, and stores the storage container. Cap member.
(4) Positioned within the plane parallel to the bottom surface of the ink storage container and engaged with the ink storage container and outside the extension lines of the two sides of each of the four corners of the projection surface vertically below the bottom surface. The cap member according to (2) or (3), wherein the cap member includes a leg portion including a supporting point.

According to the cap member of the present invention (1), the ink supply port of the ink storage container and the lid member of the cap member are closely engaged with each other in a state where the ink storage container is positioned by removing the stopper member. For this reason, the ink can be easily and leaked into the ink chamber through the through hole, the ink supply port, the negative pressure material chamber, and the communication portion by reducing the pressure inside the ink storage container while ensuring the communication state to the outside. It is possible to fill without. The cap member functions as a sealing member for the ink supply port in the state where the plug member is mounted, particularly in the conventional two-chamber structure type ink storage container. In other words, the cap member is an excellent member having two functions, that is, a function of ink filling and a function as a sealing member of the ink storage container.

According to the present invention (2), the first latching portion and the second latching portion of the ink storage container engage with the first engagement portion and the second engagement portion of the cap member, so that the ink storage container When filling ink, the ink container can be stabilized and filled with ink.

According to the present invention (3), the cap member accommodates the entire lower part of the ink storage container in the storage portion, whereby the side surface and the bottom surface of the ink storage container are supported by the cap member, and the first and second engaging portions In cooperation, the ink container and the cap member can be more stably engaged.

According to the present invention (4), the leg of the cap member has a fulcrum on the outside of the two extension lines of each of the four corners of the projection surface vertically below the bottom surface of the ink container, so that the cap is placed on the flat plate. The member can be stably stepped and can be stably stepped against the pressing force from the upper part of the ink storage container attached to the cap member.

It is a top perspective view of the cap member of the present invention. It is a lower perspective view of the cap member of the present invention. It is a side view of the cap member of this invention. It is a top view of the state which mounted | wore the cap member of the cap member of this invention. It is a top view in the state where the plug member of the cap member of the present invention was removed. In the back view of the cap member of the present invention, It is a reverse view of the state which removed the plug member of the cap member of this invention. It is a front view of the cap member of the present invention. It is a rear view of the cap member of the present invention. It is a plane enlarged view of a lid member. It is a BB arrow line view of a lid member. It is an AA arrow directional view of the cap member of the present invention. It is a perspective view of the ink storage container of this embodiment. It is a back surface perspective view of the ink storage container of this embodiment. It is a longitudinal cross-sectional schematic diagram of the ink storage container of this embodiment. 3 is a front perspective view of the cap member according to the present invention with an ink storage container attached thereto. FIG. 4 is a rear perspective view of the cap member according to the present invention with an ink storage container attached thereto. It is the figure before mounting | wearing with the cap member of this invention with which the ink storage container was mounted | worn, and the jig | tool set for filling an ink storage container with ink. It is a figure of the state which mounted | wore the cap member of this invention with which the ink storage container was mounted | worn with the jig | tool set for filling an ink storage container with ink.

  Hereinafter, an embodiment of a cap member of the present invention will be described with reference to the drawings. However, the present invention is not limited to this embodiment.

  The cap member 1 according to the present embodiment is shown in FIGS. 1 to 10, the ink container 20 is used in FIGS. 11 and 13, and the cap member 1 and the ink container are engaged in FIGS. 14a and 14b. The state of filling the ink storage container 20 with ink is shown in FIGS.

The cap member 1 of the present invention generally includes a front wall 11, a rear wall 12, a bottom wall 13, a right side wall 14, and a left side wall 15. The central recess is a housing portion 8 for housing the ink storage container 20, and the bottom wall 13 of the storage portion 8 is supported by contacting the bottom surface 30 of the ink storage container 20 to reinforce the cap member 1. An elastic lid member 2 that seals the ink supply port 26 at a further recessed position near the rear in the longitudinal direction, and the rear wall 12 of the cap member 1 receives the protruding first locking portion 21 of the ink storage container 20 for engagement. Claw-shaped second engaging portion 7 that engages with the upper surface of the protruding portion of the ink container 20 that extends obliquely upward from above the front wall 11 of the cap member 1. , Is formed. The material constituting the cap member 1 is not particularly limited as long as the shape can be maintained, but the ink storage container 20 is slid and mounted on the storage portion, and is fitted into the first and second engagement portions to be engaged. Therefore, the cap member preferably has some flexibility, and in that sense, a resin molded product is desirable. In addition, although the 1st engaging part 6 is formed with one hole in this figure, it is also possible to provide two or more in order to improve the stability of engagement.

FIG. 1 is a perspective view of the cap member 1 in a normal posture, and FIG. 2 is a rear perspective view of the cap member 1. The cap member 1 has fulcrums 9 that stably support the cap member 1 on a flat plate at the corners of the front and rear and left and right side surfaces 11, 12, 14 and 15. When the cap member 1 is placed in a normal posture, the fulcrum 9 is formed at the lowermost part of the cap member 1. Further, the fulcrum and the fulcrum may be integrated by a ridge or a plane.

8 to 10 are diagrams related to the lid member. As shown in FIG. 9 (cross-sectional view: BB arrow view), the lid member 2 has a protruding portion 3 below the dotted line and a through hole 5 penetrating from the front side to the back side at the center. A convex portion 17 is provided at the tip of the back side of the lid member to make it difficult for the lid member 2 to come off the cap member 1. Since the lid member 2 is made of silicon rubber and has elasticity, it can be sealed tightly against the ink supply port 26 of the ink storage container 20. Silicone rubber is suitable as a material for the lid member 2 that comes into contact with ink because it has good durability against ink containing alcohol.

FIG. 11 is a perspective view of the ink storage container 20, FIG. 12 is a rear perspective view of the ink storage container 20, and FIG. 13 is a schematic side sectional view of the ink storage container 20. The ink storage container 20 has a substantially box shape in which an upper surface 29, a bottom surface 30, a front surface 27, a rear surface 28, a right side surface 31 and a left side surface 32 are configured as main surfaces, and a first locking member 21 positioned on the rear surface 28, A projecting second locking member 22 located on the front surface 27 side, a negative pressure material chamber 33 having an atmospheric hole 24 for introducing atmospheric air and containing a negative pressure generating member, and an ink filling hole 24 for filling ink. An ink chamber 34 that is located adjacent to the negative pressure material chamber 33 and stores ink, a partition wall 35 that partitions the negative pressure material chamber 33 and the ink chamber 34, the negative pressure material chamber 33, and the ink chamber. The ink supply port 26 is a container that protrudes outward from the negative pressure material chamber 33 side of the bottom surface 30 and is filled with a porous member.

14A and 14B are views showing a state in which the ink storage container 20 is mounted on the cap member 1. FIG. The lower part of the front surface 27, the rear surface 28, the right side surface 31, the left side surface 32 and the entire bottom surface 30 of the ink storage container 20 are inserted into the storage portion 8, and the first locking portion 21 of the ink storage container 20 is the cap member 1. The second engagement portion 22 of the ink storage container 20 is engaged with the second engagement portion 7 of the cap member 1, whereby the surface 2 a of the lid member 2 is in contact with the ink storage container. The ink supply ports 26 are sealed in close contact with the 20 ink supply ports 26.

  The procedure for mounting the ink container 20 on the cap member 1 is as follows. The first locking part 21 is inserted into the first engaging part 6. While pressing the ink supply port 26 of the ink storage container against the surface 2a of the lid portion 2, the front surface of the ink storage container is rotated downward, and the upper surface 22a of the protruding portion of the second locking portion 22 enters the lower surface 7a of the second engaging portion. At this point, the ink supply port 26 comes into close contact with the surface 2a of the elastic lid portion 2 to seal the ink supply port 22, and the engagement between the ink storage container 20 and the cap member 1 is completed.

FIG. 15 is a view of the cap member 1 of the present invention with the ink storage container 20 mounted thereon and a set of jigs for filling the ink storage container 20 with ink before mounting. The ink bottle 41 is an ink storage tank for filling the ink storage container 20 with ink. The ink introduction tube member 40 includes an ink introduction tube 40 a, a bottle side nozzle 40 b for connecting to the ink bottle 41, and a cap side nozzle 40 c for connecting to the cap member 1. The syringe 42 is a syringe 42 for suctioning the inside of the ink storage container 20 from the ink filling hole 24 under reduced pressure. The plug member 4 is a plug for sealing the through hole 5 of the lid member 2, and is used for sealing the air hole 23 when filling ink.

FIG. 16 is a view showing a state in which a set of jigs for filling the ink storage container 20 with ink is mounted on the cap member 1 of the present invention. The air hole 23 of the ink storage container 20 is sealed by the stopper member 4, and the ink bottle 41, the ink introduction tube member 40, the cap member 1, the ink storage container 20, and the syringe 42 are in close contact with each other. When the piston of the syringe 42 is pulled from this state, the inside of the ink storage container 20 is decompressed, and the ink 43 is introduced from the ink bottle 41 into the ink storage container 20 via the ink introduction tube member 40. When the ink level in the ink chamber 34 reaches a height equivalent to the upper surface of the negative pressure material in the negative pressure material chamber 33, the suction by the syringe is stopped, the air hole 23 is opened, then the syringe 42 is removed, and the air hole 23 and After sealing the ink filling hole 24, the cap side nozzle 40c inserted in the through hole 5 is removed, and the cap member 1 and the ink storage container 20 are separated.

DESCRIPTION OF SYMBOLS 1 Cap member 2 Lid member 2a Lid member surface 3 Protrusion part 4 Plug member 5 Through-hole 6 1st engaging part 7 2nd engaging part 7a 2nd engaging part lower surface 8 Container 9 Support point 10 Leg part 11 Front wall 12 Rear wall 13 Bottom wall 14 Right side wall 15 Left side wall 16 Rib 20 Ink storage container 21 First locking portion 22 Second locking portion 22a
23 Air hole 24 Ink filling hole 24a Ink filling hole plug member 25 Communication hole 26 Ink supply port 27 Front surface 28 Rear surface 29 Upper surface 30 Bottom surface 31 Right side surface 32 Left side surface 33 Negative pressure material chamber 34 Ink chamber 35 Partition wall 40 Ink introduction pipe member 40a Ink introduction tube 40b Bottle side nozzle 40c Cap side nozzle 41 Ink bottle 42 Syringe 43 Ink

Claims (4)

A cap member having a lid member that covers an ink supply port of an ink storage container that stores ink, and an engaging portion that positions the ink storage container;
The cap member includes a through hole that communicates with the ink supply port and penetrates from one end to the other end of the lid member, and a cap member that is detachable from the through hole. Element. The ink container is generally box-shaped with a top surface, a bottom surface, a front surface, a rear surface, and a pair of side surfaces connecting these as main surfaces, a first locking member located on the rear surface side, and a front surface side. A second locking member that is positioned; a negative pressure chamber that has an air hole for introducing air; and that houses a negative pressure generating member; and an ink filling hole that is filled with ink, and is positioned adjacent to the negative pressure chamber. An ink chamber that is a space for storing ink, a partition wall that partitions the negative pressure chamber and the ink chamber, and a communication portion that communicates the negative pressure chamber and the ink chamber, and the ink supply port includes the bottom surface A container that protrudes outward from the negative pressure chamber side and is filled with a porous member,
The said engaging part was equipped with the 1st engaging part engaged with the said 1st latching member, and the 2nd engaging part engaged with the said 2nd latching member, The said engaging part is characterized by the above-mentioned. The cap member according to the above. 3. The cap according to claim 2, wherein the cap member includes an accommodating portion that covers the front surface, the rear surface, the lower portion of each of the pair of side surfaces, and the entire bottom surface and accommodates the accommodating container. Element. A fulcrum located in the plane parallel to the bottom surface of the ink storage container and engaged with the ink storage container and outside the extended lines of two sides of each of the four corners of the projection surface vertically below the bottom surface. The cap member according to claim 2, further comprising a leg portion including the cap member.

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