JP2005059586A - Valve device and liquid ejection apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the degree of freedom of the material, and downsize and simplify the structure of a valve device provided, for example, in the middle of a channel of a liquid supply tube. <P>SOLUTION: A connection member 25 of an inkjet recording apparatus comprises a channel forming member 51 and a rotatable member 53. In the channel forming member 51, a second through channel 67 is formed, and a slidable member 89 slidable in the second through channel 67 is provided. The rotatable member 53 is fixed so as to be rotatable relative to the channel forming member 51, and has a permanent magnet 105. When the rotatable member 53 is positioned at a first position, by virtue of the attraction power between the permanent magnet 105 and a magnetic portion 93 of the slidable member 89, the slidable member 89 is spaced away from a step 80 in the second through channel 67. As a result, the second through channel 67 is caused to be in a communication state. When the rotatable member 53 is positioned at a second position, the attraction power is reduced, and the slidable member 89 abuts the step 80 by virtue of biasing force of a first spring member 91. As a result, the second through channel 67 is caused to be in a non-communication state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a valve device and a liquid ejecting apparatus.

  Conventionally, an ink jet recording apparatus has been widely used as a liquid ejecting apparatus that ejects liquid onto a target. Specifically, the ink jet recording apparatus includes a carriage, a recording head mounted on the carriage, and an ink cartridge that stores ink as a liquid. Then, while moving the carriage relative to the recording medium, ink is supplied from the ink cartridge to the recording head, and ink is ejected from the nozzles formed on the recording head, whereby printing is performed on the recording medium. It was like that.

  In such an ink jet recording apparatus, an ink cartridge is not mounted on the carriage in order to reduce a load on the carriage or to reduce the size and thickness of the apparatus (so-called off-carriage type). There was something to do. The ink in the ink cartridge is supplied to the recording head through a flexible ink supply tube.

  The ink cartridge may be removed from the ink supply tube when it is replaced with a new one. As a result, the flow path from the ink supply tube to the recording head is opened to the atmosphere, and the ink remaining in the ink supply tube can leak out from the ink supply tube or be dried. There was sex.

  Therefore, a valve device is provided in the middle of the flow path of the ink supply tube, and when the ink cartridge is replaced, the valve device is closed to prevent leakage of ink from the ink supply tube or drying of the ink. It was known to prevent.

  In addition, it was possible to use the valve apparatus currently disclosed by patent document 1 as such a valve apparatus. Specifically, this valve device includes a flow path formed inside the valve body and a valve body (valve member) made of a magnetic material, and the valve body abuts on a valve seat provided in the middle of the flow path. Further, opening and closing control of the flow path is performed by being separated. The valve body is provided with a film-like member that is elastically deformed along the fluid moving direction, and the valve body is fixed to the film-like member.

Further, the valve body is made of a magnetic material having a high magnetic permeability, and an excitation coil is wound around the outer periphery. And by exciting the exciting coil, it was possible to generate a repulsive force between the valve body and the valve seat, and to separate the valve body and the valve seat so as to open the flow path. . On the other hand, when the excitation to the exciting coil is stopped, the valve body is moved by the elastic return of the membrane member and the pressure of the fluid, and the valve body and the valve seat are brought into contact with each other so that the flow path is closed. It was.
JP 2000-81162 A

By the way, in the said conventional valve apparatus, while the valve body was a magnetic body, the valve seat had to be comprised with the magnetic material which has a high magnetic permeability. For this reason, in this valve device, the material of the valve body and the valve seat is limited, the material does not have a degree of freedom of selection, and may cause a restriction on the design of the valve device. Further, this valve device has a problem that an exciting coil needs to be wound around the outer periphery of the valve main body, and the structure of the device becomes complicated and large. Further, since the valve body is driven by energizing the exciting coil, the drive of the valve body is limited, for example, the valve body cannot be driven when the ink jet recording apparatus is not energized. There was a problem that the degree of freedom decreased.

  The present invention is made to solve the above-mentioned problems, and a first object of the present invention is to increase the degree of freedom of the material of a valve device provided in the middle of the flow path of the liquid supply tube. At the same time, it is an object to provide a valve device and a liquid ejecting apparatus capable of miniaturizing and simplifying the structure.

  A second object of the present invention is to provide a valve device and a liquid ejecting apparatus that can increase the degree of freedom in driving the valve device provided in the middle of the flow path of the liquid supply tube.

  In the valve device of the present invention, the flow path forming member is provided with a flow path for guiding each of the plurality of liquids stored in the liquid storage means, and each of the flow paths is based on the attachment / detachment operation of the liquid storage means. A valve body that allows each channel to be opened and closed simultaneously was provided.

  According to the present invention, the flow path for guiding each liquid stored in the liquid storage means formed in the flow path forming member can be opened and closed simultaneously by the valve body in the attaching / detaching operation of the liquid storage means. The structure can be reduced in size and simplified.

  In this valve device, the flow path forming member constitutes a connection member that removably connects a liquid storage means storing a plurality of liquids, and the flow paths are focused on one end of the connection member. The valve bodies were provided in the respective flow paths at the locations.

  According to this, by attaching / detaching the liquid storage means to / from the connection member, the flow paths can be opened / closed simultaneously at one end of the connection member where the flow paths converge. In other words, since the valve bodies are gathered at the converging portions, the structure for simultaneously operating the valve bodies can be reduced in size and simplified, and can be provided without taking up space.

  The present invention includes a valve seat provided in the middle of the flow path formed in the flow path forming member, and a first magnetic body located at least in part in the flow path, toward the valve seat. In a valve device provided with a valve body capable of closing the flow path by moving in the positive direction and the negative direction to be separated, the valve apparatus has a magnet and is rotatable relative to the flow path forming member. A rotation member that can move from a first position to a second position by rotation, wherein the first position is determined by the attraction force acting between the magnet and the first magnetic body. The position where the body can move in the positive direction or the negative direction is the second position, and the second position is a position where the valve body does not move in the positive direction or the negative direction due to the suction force.

  Therefore, according to the present invention, the rotating member can reciprocate between the first position and the second position by rotating. Then, when the rotating member is located at the first position, the attractive force between the magnet of the rotating member and the first magnetic body of the valve body is increased, and the valve body is moved in the positive direction or the negative direction. It became possible to move. Further, since the rotating member is located at the second position, the attractive force between the magnet and the first magnetic body is reduced, and the valve body is prevented from moving in the positive direction or the negative direction.

Therefore, the valve element moves in the positive direction or the negative direction due to the rotation of the rotation member, and the valve device can be opened and closed. As a result, for example, compared with the case where the magnet is moved linearly, the moving range of the magnet is reduced, and the size of the entire valve device can be reduced. Furthermore, the accuracy in mass production is improved as compared with the case of moving in a straight line. In addition, since only the valve seat and the valve body are positioned in the flow path, and the magnet does not need to be provided in the flow path, the magnet is made of a material that takes into account deterioration due to fluid flowing in the flow path, etc. This increases the degree of freedom in material selection.

In this valve device, the valve body includes first biasing means that biases the valve body in a direction opposite to a direction sucked by the suction force.
According to this, the valve body is always urged in the direction opposite to the suction force by the first urging means. Accordingly, the valve body moves in the positive direction or the negative direction by the suction force when the rotating member is located at the first position, and the valve body moves when the rotating member is located at the second position. By one urging means, it is surely moved in the direction opposite to the moving direction by the suction force. As a result, the valve body can be moved more reliably based on the movement of the rotating member.

In this valve device, the valve body is formed of an elastic material at a contact portion with the valve seat.
According to this, when the valve body moves in the forward direction, the adhesion between the valve seat and the valve body is increased when the valve body comes into contact with the valve seat. Therefore, the valve device can be opened and closed more reliably.

The valve device includes a second urging unit that urges the rotating member to be located at either the first position or the second position.
According to this, by rotating the rotating member only in the direction opposite to the direction urged by the second urging means, the returning force of the second urging means is utilized to rotate. The member can be reciprocated between the first position and the second position. As a result, the rotation member can be easily driven, and the structure can be simplified.

In this valve device, the valve body is integrally provided with a guide portion that abuts against the inner wall surface of the flow path.
According to this, a valve body comes to move in the state guided by the guide part, and the movement of a valve body is stabilized. As a result, the opening and closing of the valve device is stabilized.

  In this valve device, the rotating member has a second position at a position facing the first magnetic body across the permanent magnet when the rotating member is positioned at the first position. A magnetic material was provided.

  According to this, the second magnetic body functions as a so-called back yoke, and the attractive force generated between the permanent magnet and the first magnetic body can be effectively increased.

Therefore, the present invention is formed in the liquid storage unit formed in the liquid storage unit that stores the liquid, the liquid jet head that jets the liquid from the nozzle to the target, the flow path forming member, and the flow path forming member. In a liquid ejecting apparatus comprising a flow path for guiding the liquid from the means to the liquid ejecting head, a valve seat provided in the middle of the flow path, and located in the flow path, at least partially A first magnetic body, having a valve body capable of closing the flow path by moving in a positive direction toward the valve seat and a negative direction away from the valve seat; and a magnet; A rotation member that is rotatable relative to the first position, and is movable from the first position to the second position by rotation. The first position is between the magnet and the first magnetic body. The valve element moves in the positive direction due to the suction force acting on the Are possible with a position, the second position, by the suction force, the valve body is a position that does not move to the positive direction or the negative direction.

  According to the present invention, the rotating member can reciprocate between the first position and the second position by rotating. And since a rotation member is located in a 1st position, the attraction force between the magnet of a rotation member and the 1st magnetic body of a valve body increases, and a valve body can move to a positive direction. It was made to become. Further, since the rotating member is located at the second position, the attractive force between the magnet and the first magnetic body is reduced, and the valve body is prevented from moving in the positive direction.

  Accordingly, the valve body may or may not move in the forward direction due to the rotation of the rotating member, and the flow path in the flow path forming member may not be blocked. As a result, when the liquid storage means and the flow path are separated, the flow path is closed so that the liquid can be prevented from leaking from the flow path or the liquid being dried. Become.

  At this time, the valve device can reduce the size of the valve device in the liquid ejecting apparatus because the moving range of the magnet becomes smaller than when the magnet is moved along a straight line, for example. it can. In addition, since only the valve seat and the valve body are positioned in the flow path, and the magnet does not need to be provided in the flow path, the magnet is made of a material that takes into account deterioration due to fluid flowing in the flow path, etc. This increases the degree of freedom in material selection.

  In the liquid ejecting apparatus, the flow path forming member includes a groove forming member in which a groove is formed, and a film material that forms the flow path by sealing the groove. In the path forming member, when the rotating member is positioned at the first position, the path forming member is provided at a position interposed between the magnet and the valve body.

  According to this, when the flow path is configured by the groove formed in the groove forming member and the film material, and the rotating member is located at the first position, the film material is interposed between the magnet and the valve body. Intervened. Therefore, the distance between the magnet and the valve body can be shortened, and the magnetic force by the magnet can be easily transmitted to the valve body. As a result, the energy efficiency when the valve body is attracted by the magnet is improved.

  In the liquid ejecting apparatus, the flow path forming member includes a hollow needle portion communicating with the flow path at an end portion on the liquid storage means side, and the needle portion is inserted into the liquid storage means. Accordingly, the liquid storage means is provided with a liquid supply port capable of supplying the liquid in the liquid storage means to the flow path, and the rotating member is configured so that the liquid storage means is not inserted into the liquid supply port. By moving from the insertion position to the insertion position where the needle portion is inserted into the liquid supply port, the liquid storage means is pressed so as to move from the second position to the first position. It is provided at a position.

  According to this, the rotating member is moved from the second position to the first position by inserting the needle portion into the liquid supply port of the liquid storage means. As a result, the flow path is in communication. In other words, by inserting or not inserting the needle portion into the liquid supply port of the liquid storage means, the flow path can be in a communication state or a non-communication state. Therefore, it is not necessary to drive the valve device using a driving device such as an actuator in order to make the flow path in a communicating state or non-communicating state, and the entire device can be simplified. Further, even when the liquid ejecting apparatus is in a non-energized state, the valve device can be driven, and the degree of freedom in driving the valve device can be increased.

  Further, when the liquid storage means is in the non-insertion position, the flow path is in a non-communication state, and when the liquid storage means is in the insertion position, the flow path is in a communication state and the liquid storage means is connected to the flow path. When there is not, it can prevent effectively that a liquid leaks from a flow path, or a liquid dries.

  In the liquid ejecting apparatus, the liquid ejecting apparatus includes a restricting unit that is movable to a restricting position that restricts the movement of the rotating member so as to be positioned at the second position and a non-regulating position that does not restrict the movement of the rotating member. The regulating means abuts on the liquid storing means, and the liquid storing means moves from the liquid storing means to the non-regulating position by moving from the non-inserting position to the inserting position. It is possible to receive such a pressing force.

  According to this, when the liquid storage means is located at the non-insertion position, the restricting means restricts the rotating member to be located at the second position. Further, when the liquid storage means is located at the insertion position, the movement of the rotating member is not restricted by the restriction means. Therefore, when the liquid storage means is in the non-insertion position, the turning member is reliably positioned at the second position by the restriction means, and the flow path can be brought into a non-communication state. As a result, when the liquid storage means is not connected to the flow path, it is possible to more reliably prevent the liquid from leaking from the flow path or the liquid from drying.

  In this liquid ejecting apparatus, the restricting means includes a shaft portion, one side portion sandwiching the coaxial portion, and the other side portion, and is rotatable relative to the flow path forming member around the shaft portion. The one side portion is provided so as to abut against the rotating member when the restricting means is located at the restricting position, and to restrict movement so that the rotating member is located at the first position. The other side portion is provided so as to receive the pressing force from the liquid storing means.

  According to this, the restricting means receives the pressing force from the liquid storing means at the other side portion and is rotated. Then, the restricting means restricts the movement of the rotating member via one side portion by turning. Therefore, for example, even if the moving direction of the rotating member is different from the direction of the pressing force of the liquid storage means, the direction of the one side portion and the other side portion of the regulating means is set to the respective directions. By providing it in a suitable direction, the pressing force of the liquid storage means can be reliably converted into the movement of the rotating member. Therefore, when designing the liquid ejecting apparatus, it is not necessary to unify the insertion direction of the liquid storage means and the moving direction of the rotating part, and the degree of freedom of the layout of the liquid ejecting apparatus can be improved, and the entire apparatus Can be miniaturized.

The liquid ejecting apparatus includes a third urging unit that urges the restricting unit to be positioned at the restricting position.
According to this, the restricting means is pressed by the liquid storage means only in the direction opposite to the direction urged by the third urging means, thereby utilizing the restoring force of the third urging means. Thus, the restricting means can be reciprocated between the restricted position and the non-restricted position. As a result, the regulating means can be easily driven and the structure can be simplified.

  The liquid ejecting apparatus includes a second urging unit that urges the rotating member so as to be positioned at the first position, and the second urging unit is more powerful than the third urging unit. The biasing force is small.

  According to this, by rotating the rotating member only in the direction opposite to the direction urged by the second urging means, the returning force of the second urging means is utilized to rotate. The member can be reciprocated between the first position and the second position. As a result, the rotation member can be easily driven, and the structure can be simplified. Further, since the second urging means has a smaller urging force than the third urging means, the second urging means of the rotating member prevents the restriction of the turning member by the restricting means from being released. be able to.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, an ink jet recording apparatus 11 as a liquid ejecting apparatus according to this embodiment includes a main body case 12, a platen 13, a guide shaft 14, a carriage 15, and a recording head 20 as a liquid ejecting head. Further, the ink jet recording apparatus 11 includes a supply tube 22, an ink cartridge 23 as a liquid storage unit, and a connection member 25.

  The main body case 12 is a box having a substantially rectangular parallelepiped shape, and a cartridge holder 12a having a substantially rectangular parallelepiped shape is formed on one side of the front surface shown in FIG. In the present embodiment, the longitudinal direction of the main body case 12, that is, the direction along the arrow direction shown in FIG.

  The platen 13 is installed in the main body case 12 along the main scanning direction, and serves as a member for supporting the recording paper P as a target sent out through paper feeding means (not shown). Yes. In this embodiment, it is assumed that the recording paper P is sent out in a direction orthogonal to the main scanning direction, that is, in the sub-scanning direction.

  The guide shaft 14 is formed in a rod shape and is installed in the main body case 12 along the main scanning direction. The carriage 15 is inserted so as to be relatively movable with respect to the guide shaft 14 at a position facing the platen 13 and can reciprocate in the main scanning direction.

  The carriage 15 is connected to a carriage motor (not shown) via a timing belt (not shown). The carriage motor is supported by the main body case 12, and when the carriage motor is driven, the carriage 15 is driven via the timing belt, and the carriage 15 reciprocates along the guide shaft 14, that is, in the main scanning direction. Is done.

  The recording head 20 is provided on a surface of the carriage 15 that faces the platen 13 and includes a plurality of nozzles (not shown) for ejecting ink as liquid toward the platen 13 side.

  The supply tube 22 is a flexible tube, and six tubes are provided corresponding to the color of the ink. One end of the supply tube 22 is connected to a connection member 25 described later. The other end of the supply tube 22 is connected to the recording head 20 via a damper or the like.

  The ink cartridge 23 can be attached to and detached from the cartridge holder 12a. As shown in FIGS. 2 and 3, the ink cartridge 23 includes an ink storage container 31 and six ink packs 33 accommodated in the ink storage container 31.

  The ink storage container 31 includes a box-shaped case main body portion 35 whose upper portion is open, and a substantially plate-shaped lid portion 37 that covers the opening of the case main body portion 35. As shown in FIG. 2, six ink outlets 39 are provided side by side on the front surface 31 a of the ink storage container 31, and the ink storage container 31 is connected to the inner and outer sides via the ink outlet 39. Are communicated.

  As shown in FIG. 3, the ink pack 33 includes a bag portion 41 and an ink outlet member 43. The bag part 41 is formed in a bag shape by thermally welding four sides of two laminated films. In the present embodiment, as the laminate film, for example, a film obtained by vapor-depositing aluminum on a polyethylene film having gas barrier properties can be used.

  The bag portion 41 is filled with ink. In the present embodiment, each of the six ink packs 33 includes cyan ink, magenta ink, yellow ink, light cyan ink, light magenta ink, and black ink. It is assumed that the six colors of ink are filled.

  The ink lead-out member 43 is formed in a substantially cylindrical shape, and an ink lead-out path 43a as a liquid supply path is formed inside the ink lead-out member 43. The ink lead-out member 43 is fixed to the bag portion 41 so as to be sandwiched between the laminate films on one side of the bag portion 41, one end is located inside the bag portion 41, and the other end is the bag portion. 41 is exposed to the outside.

  The ink lead-out member 43 includes an open / close valve (not shown) in the ink lead-out path 43a, and the open / close valve opens when an object is inserted into the ink lead-out path 43a from the outside of the ink pack 33. It is formed so that the ink inside the ink pack 33 can flow out to the outside. Furthermore, this on-off valve is closed when no object is inserted from the outside of the ink pack 33 with respect to the ink outlet path 43a, so that the ink inside the ink pack 33 does not leak to the outside. ing.

  The ink pack 33 configured as described above is arranged in the ink storage container 31 such that the ink outlet path 43a of the ink outlet member 43 communicates with the six ink outlets of the ink storage container 31. Is housed in.

  As shown in FIG. 1, the connecting member 25 is provided in the ink jet recording apparatus 11 so as to be positioned on the back side of the cartridge holder 12 a and is supported by the main body case 12 and the like. As shown in FIGS. 4 and 5, the connection member 25 includes a flow path forming member 51, a rotating member 53, and a regulating member 55 as a regulating means.

  As shown in FIG. 4, the flow path forming member 51 includes a groove forming member 57 formed in a substantially rectangular parallelepiped shape and a film material 59. The groove forming member 57 has six needle portions 61 protruding from one side surface 57a. In FIG. 4, only three of the six needle portions 61 are shown for convenience. And the needle part 61 is formed in the substantially taper shape which becomes thin toward the front-end | tip, and is formed so that it may become hollow shape. Further, the needle portion 61 is formed in a size that can be inserted into the ink outlet path 43 a of the ink cartridge 23. In the groove forming member 57, six first through passages 63 are formed from the tip of the needle portion 61 toward the other side surface 57b.

  As shown in FIG. 5, the other side surface 57b of the groove forming member 57 is provided with six circular concave portions 65 formed in a circular cross section in the lower portion shown in FIG. ing. The circular recesses 65 are communicated with the six first through passages 63 in a one-to-one relationship.

  Further, as shown in FIGS. 6 and 7, the groove forming member 57 is disposed on the left side of the groove forming member 57 shown in FIG. 5 from the other side surface 57b side (see FIG. 6) to the one side surface 57a side (see FIG. 7). Six second through passages 67 are formed so as to penetrate through to). And in this embodiment, the 2nd penetration channel 67 is provided in slot forming member 57 in the state where it was arranged so that it might become parallel to each other so that it might become 3 rows and 2 rows. The details of the second through channel 67 will be described later.

As shown in FIGS. 5 and 6, the groove forming member 57 includes six grooves so as to connect the circular recess 65 and the second through passage 67 in a one-to-one relationship. 69 is formed. These six grooves 69 are formed on the groove forming member 57 so as to follow different paths.

  As shown in FIG. 8, the second through passage 67 includes a large inner diameter portion 71, a medium inner diameter portion 73, a small inner diameter portion 75, and a lead-out portion 77 in this order from the other side surface 57b to the one side surface 57a. The large inner diameter portion 71 is a channel having the largest inner diameter in the second through channel 67. The medium inner diameter portion 73 is a flow path having a slightly smaller inner diameter than the large inner diameter portion 71. Further, the inner diameter portion 73 is partially formed with a communication groove 73a along the flow direction on the inner wall thereof.

  The small inner diameter portion 75 is a flow path having a smaller inner diameter than the medium inner diameter portion 73. Further, a step 80 as a valve seat is formed between the medium inner diameter portion 73 and the small inner diameter portion 75.

  A cylindrical lead-out member 83 projects from the groove forming member 57 so as to surround the small inner diameter portion 75 on the side surface 57a side. The lead-out portion 77 is formed inside the lead-out member 83. The outlet members 83 are connected to one end of the supply tube 22 (see FIG. 1) one by one corresponding to the ink color.

  A valve device 85 is fitted in the second through passage 67 configured as described above. Specifically, the valve device 85 includes a guide member 87, a sliding member 89 as a valve body, and a first spring member 91 as first urging means. As shown in FIGS. 8 and 9, the guide member 87 is formed in a substantially cylindrical shape, and is fitted into the large inner diameter portion 71 of the second through passage 67 so as to be fitted. As shown in FIG. 8, the guide member 87 has an annular recess 87a formed on the side surface 57a.

  As shown in FIGS. 8 and 9, the sliding member 89 includes a magnetic body portion 93 as a first magnetic body and a seal portion 95 as a contact portion, and the inside of the inner diameter portion 73 is arranged in the axial direction. It is provided so that it can slide along.

  Specifically, the magnetic body portion 93 is formed in a substantially cylindrical shape, and is fitted into the guide member 87 in the second through passage 67 so as to be a clearance fit. Further, the magnetic body portion 93 includes a flange portion 93a as a guide portion having an outer diameter slightly smaller than the inner diameter of the intermediate inner diameter portion 73, and the magnetic body portion 93 is interposed through the flange portion 93a. The inner wall surface of the inner diameter portion 73 is in contact with the clearance fit. As a result, the magnetic body portion 93 is restricted from moving in the radial direction by the flange portion 93a.

  Further, as shown in FIG. 8, the magnetic body portion 93 has an engaging convex portion 93b protruding toward the one side surface 57a. The magnetic part 93 configured as described above is formed of a magnetic material, for example, a material such as SUS430 or SUS410L.

  The seal portion 95 is formed in a substantially cylindrical shape having an outer diameter smaller than that of the flange portion 93a. The seal portion 95 includes an engagement recess 95a on the other side surface 57b side. By engaging the engagement protrusion 93b of the magnetic body portion 93 with the engagement recess 95a, the seal portion 95 is engaged with the magnetic body portion 93. It is fixed against. And the seal | sticker part 95 is provided with the cyclic | annular contact | adherence part 95b which protrudes toward the one side surface 57a side.

It should be noted that the seal portion 95 abuts on the step 80 between the inner diameter portion 73 and the small inner diameter portion 75 of the second through-flow passage 67 so that the medium inner diameter portion 73 and the small inner diameter portion 75 are not in communication. State. The seal portion 95 is formed of an elastic material such as an elastomer, CR rubber, silicon rubber, butyl rubber, NBR, or the like.

  The first spring member 91 is a compression spring and is interposed between the guide member 87 and the sliding member 89. Specifically, one end of the first spring member 91 is in contact with the recess 87 a of the guide member 87, and the other end is in contact with the flange portion 93 a of the sliding member 89. Therefore, the guide member 87 and the sliding member 89 are urged away by the first spring member 91. As described above, the guide member 87 is fixed so as to be tightly fitted to the second through-flow passage 67, so that it slides when no force is applied from the outside. The member 89 is moved to the step 80 side by the urging force of the first spring member 91.

  That is, in a state where no force is applied from the outside, the seal portion 95 of the sliding member 89 and the step 80 are in contact with each other, and the second through flow passage 67 is maintained in a non-communication state. It has become so. Further, the sliding member 89 is moved away from the step 80 against the urging force of the first spring member 91, so that the communication groove 73 a and the small groove are formed in the second through passage 67. A series of flow paths is formed by the inner diameter portion 75 and the lead-out portion 77. Therefore, by moving the sliding member 89 against the urging force of the first spring member 91 or not moving it, the second through channel 67 can be in a communication state. , Or become out of communication.

  As shown in FIGS. 4 to 6 and 8, the film material 59 is formed of a material having a high gas barrier property, and is attached to the other side surface 57 b of the groove forming member 57 by thermal welding. Then, as shown in FIG. 5, the circular recess 65 and the groove 69 formed in the groove forming member 57 are covered with the film material 59, and six guide streams corresponding to the color of the ink are covered. A path 101 is formed.

  That is, the flow path forming member 51 configured as described above includes the first through flow path 63 (see FIG. 4), the guide flow path 101 (see FIG. 5), and the second through flow path 67 (see FIG. 8). 6) are formed without overlapping each other. In addition, the ink for each color supplied from the ink cartridge 23 can be supplied to the supply tube 22 by this flow path.

  As shown in FIG. 10, the rotation member 53 includes a main body 103, a permanent magnet 105 as a magnet, and a plate material 107 as a second magnetic body. The main body 103 is formed in a substantially flat plate shape, and a plate material recess 108 having a substantially rectangular cross section is formed on one side surface 103a thereof.

  The main body 103 is further provided with six magnet recesses 109 having a square cross section so as to be further provided from the plate recesses 108. In the present embodiment, these magnet recesses 109 are arranged in three rows and two rows in the same manner as the second through flow passage 67 formed in the flow passage forming member 51. They are provided on the main body 103 in a lined-up state. The intervals of the magnet recesses 109 are the same as those of the second through flow path 67.

  Further, two plate material convex portions 111 are formed on the main body portion 103 so as to project outward from the plate material concave portion 108. Further, an arm 113 is extended downward from the main body 103, and protrudes in the opposite direction to the protruding direction of the plate projection 111 at the end. A cylindrical shaft portion 115 is formed. In addition, a spring locking portion 116 is formed in the main body 103 above the plate material recess 108.

  In the present embodiment, six permanent magnets 105 are provided, are formed in a substantially square plate shape, and are fitted to the magnet recesses 109 one by one. The plate material 107 is formed in a substantially rectangular plate shape by a magnetic material such as magnetic soft iron, and two through holes 107a are formed at the center thereof. The plate material 107 is attached to the main body portion 103 by fitting into the plate material recess 108. At this time, the plate material convex portion 111 of the main body portion 103 is inserted into the through hole 107 a of the plate material 107. The permanent magnet 105 is fixed to the main body 103 so as to be sandwiched between the main body 103 and the plate material 107.

  As shown in FIGS. 5 and 11, the rotating member 53 configured as described above is attached so that the shaft 115 can rotate with respect to a bearing (not shown) of the flow path forming member 51. Thus, the shaft 115 is fixed so as to be rotatable about the rotation center. At this time, the rotating member 53 is attached so that a surface (not shown) opposite to the one side surface 103a of the main body 103 faces the other side surface 57b of the groove forming member 57. ing.

  That is, the rotation member 53 is rotatable relative to the flow path forming member 51 in the direction of the arrow shown in FIGS. 5 and 11 and the direction opposite to the arrow direction. And in this embodiment, the position when the rotation member 53 is located as shown in FIG. 11 is a first position, and the position when it is located as shown in FIG. 5 is a second position. . The rotating member 53 can reciprocate between the first position and the second position.

  As shown in FIG. 11, the first position is the second position of the flow path forming member 51 as shown in FIG. 12, when the rotating member 53 is located at the first position. The through flow path 67 and the permanent magnet 105 of the rotating member 53 are positioned so as to overlap in the sliding direction of the sliding member 89 (see FIG. 8). In addition, the first position is the attraction acting between the magnetic body portion 93 (see FIG. 8) of the sliding member 89 and the permanent magnet 105 when the positions of the permanent magnet 105 and the sliding member 89 overlap. It is also a position where the sliding member 89 moves to the permanent magnet 105 side against the urging force of the first spring member 91 (see FIG. 8) by force.

  Further, as shown in FIG. 5, the second position means that when the rotation member 53 is located at the second position, as shown in FIG. The permanent magnet 105 is positioned so as not to overlap in the sliding direction of the sliding member 89. In addition, the second position is an attractive force that acts between the magnetic body portion 93 of the sliding member 89 and the permanent magnet 105 by preventing the positions of the permanent magnet 105 and the sliding member 89 from overlapping each other. Therefore, the sliding member 89 is also in a position where it cannot move to the permanent magnet 105 side against the biasing force of the first spring member 91.

  That is, as the rotating member 53 reciprocates between the first position and the second position, the sliding member 89 resists the biasing force of the first spring member 91 and the permanent magnet 105. Move to the side or not.

  And in this embodiment, as shown in FIG.5 and FIG.11, the said spring latching | locking part 116 of the rotation member 53, and the hook part 119 (refer FIG. 11) formed in the flow-path formation member 51, Are connected via the second spring member 121. The second spring member 121 is a tension spring, and the rotating member 53 is urged by the second spring member 121 so as to be positioned at the first position. That is, the rotating member 53 is positioned at the first position in a state where no force is applied from the outside.

As shown in FIGS. 4 and 7, the regulating member 55 includes a shaft portion 123, one side portion 125, and the other side portion 127. The shaft portion 123 is formed in a substantially cylindrical shape, and as shown in FIG. 7, the upper end and the lower end thereof are rotatably supported by bearings 131 and 132 formed in the flow path forming member 51, respectively. Thereby, it is attached to the flow path forming member 51 so as to be relatively rotatable.

  As shown in FIG. 4, the one side portion 125 and the other side portion 127 are provided so as to extend from the shaft portion 123 along the radial direction of the shaft portion 123, respectively. And the other side portion 127 is approximately 90 degrees. The restricting member 55 can be rotated in the direction of the arrow shown in FIG. 4 and the direction opposite to the direction of the arrow with the shaft portion 123 as the center of rotation.

  Therefore, the restriction member 55 can reciprocate between the restriction position shown in FIG. 4 and the non-restriction position shown in FIG. As shown in FIG. 4, the restriction position means that when the restriction member 55 is located at this restriction position, the rotating member 53 is located at the second position by the one side portion 125. It is a position where the movement is restricted. At this time, the other side portion 127 is positioned such that its end portion protrudes from one side surface 57 a of the groove forming member 57.

  Further, as shown in FIG. 14, the non-restricted position means that when the restricting member 55 is located at this non-restricted position, the rotating member 53 is located at the second position by the one side portion 125. In this way, the movement is not restricted. At this time, the other side portion 127 is positioned such that its end portion does not protrude from the one side surface 57 a of the groove forming member 57.

  As shown in FIG. 4, a third spring member 133 as a third biasing unit is interposed between the other side portion 127 of the regulating member 55 and the flow path forming member 51. The third spring member 133 is a compression spring, and the regulating member 55 is urged by the third spring member 133 so as to be positioned at the regulating position. The biasing force of the third spring member 133 is larger than that of the second spring member 121 (see FIG. 11). Therefore, in a state where no force is applied from the outside, the restricting member 55 is positioned at the restricting position by the urging force of the third spring member 133, so that the rotating member 53 is in the second position. The movement is restricted to be located in

  In the present embodiment, the valve device is configured by the rotating member 53, the regulating member 55, the step 80, the sliding member 89, the first spring member 91, the second spring member 121, and the third spring member 133. It is assumed that

  Further, the other side portion 127 of the regulating member 55 is inserted into the ink lead-out member 43 (see FIG. 3) of the ink cartridge 23 so that the needle portion 61 of the connecting member 25 is inserted, whereby the front surface 31a ( 2), the position is such that it is pressed along the insertion direction.

Next, the operation of the ink jet recording apparatus 11 configured as described above will be described.
As shown in FIGS. 4 and 5, when the ink cartridge 23 is not attached to the connecting member 25, no force is applied to the regulating member 55 from the outside. Therefore, the restricting member 55 is located at the restricting position by the urging force of the third spring member 133, and the rotating member 53 is also located at the second position.

As a result, since the rotation member 53 is located at the second position, as shown in FIG. 13, the second through flow path 67 and the permanent magnet 105 are in a positional relationship such that they do not overlap with each other. As shown in FIG. 8, the sliding member 89 cannot move to the permanent magnet 105 side against the biasing force of the first spring member 91.

  Accordingly, the sliding member 89 is in contact with the step 80, and the second through passage 67 is in a non-communication state. As a result, the supply tube 22 is not released to the atmosphere via the connection member 25, and it is possible to prevent the ink from leaking out from the connection member 25 or the ink from drying. That is, in a state in which the ink cartridge 23 is not attached to the connection member 25, the second through flow path 67 in the connection member 25 is in a non-communication state, and ink leakage or ink drying in the supply tube 22 or the like. Is effectively prevented.

  Next, when the ink cartridge 23 is attached to the connection member 25, as shown in FIG. 4, the needle portion of the connection member 25 with respect to the ink lead-out member 43 (see FIG. 3) of the ink cartridge 23. 61 is inserted. Then, as shown in FIG. 14, the regulating member 55 is rotated when the other side portion 127 is pressed by the front surface 31 a of the ink cartridge 23, and is positioned at the non-regulating position.

  As a result, as shown in FIG. 11, the rotating member 53 rotates so as to be positioned at the first position by the urging force of the second spring member 121. Therefore, the rotation member 53 comes to be located at the first position, and as shown in FIG. 12, the second through flow path 67 and the permanent magnet 105 are in a positional relationship. As a result, as shown in FIG. 15, the sliding member 89 moves toward the permanent magnet 105 against the biasing force of the first spring member 91 by the attractive force acting between the permanent magnet 105 and the sliding member 89. become.

  Accordingly, the sliding member 89 is separated from the step 80, and the second through flow path 67 is in a communication state. As a result, the entire area from the ink cartridge 23 to the supply tube 22 is brought into communication. In this state, in the ink jet recording apparatus 11, printing is performed on the recording paper P by driving the carriage motor, the recording head 20, the paper feeding unit, and the like based on the print data. .

  In the present embodiment, as shown in FIG. 15, the plate member 107 of the rotating member 53 is located at a position facing the sliding member 89 with the permanent magnet 105 interposed therebetween. The plate member 107 functions as a so-called back yoke, and the attractive force between the permanent magnet 105 and the sliding member 89 is increased.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the rotation member 53 can reciprocate between the first position and the second position by rotating about the shaft 115 as the rotation center. I made it. Since the rotating member 53 is located at the first position, the attractive force between the permanent magnet 105 of the rotating member 53 and the magnetic body portion 93 of the sliding member 89 is increased, and the sliding member 89 is It can be moved in a direction away from the step 80. Further, since the rotating member 53 is located at the second position, the attractive force between the permanent magnet 105 and the magnetic body portion 93 is reduced, and the sliding member 89 moves away from the step 80. And not moved.

  Accordingly, the rotation of the rotation member 53 prevents the sliding member 89 from moving in a direction away from the step 80, and the second through flow path 67 is in a communication state or a non-communication state. Can be. For example, compared with the case where the permanent magnet 105 is moved linearly, the moving range of the permanent magnet 105 can be reduced, and the overall size of the ink jet recording apparatus 11 can be reduced. In addition, the accuracy of mass production is improved as compared with the case where the permanent magnet 105 is moved linearly.

  (2) In the above embodiment, the permanent magnet 105 provided on the rotating member 53 is positioned outside the flow path forming member 51. Therefore, the permanent magnet 105 can be prevented from being placed in the environment of ink flowing in the flow path formed in the flow path forming member 51, and the permanent magnet 105 is made of a material that takes into account deterioration due to ink or the like. There is no need to. As a result, the degree of freedom in selecting the material of the permanent magnet 105 can be increased.

  (3) In the above embodiment, the sliding member 89 is urged by the first spring member 91 in the direction in which the sliding member 89 comes into contact with the step 80. Therefore, the sliding member 89 is maintained in a state of contacting the step 80 by the urging force of the first spring member 91 except when the rotating member 53 is located at the first position. As a result, the sliding member 89 can be moved more reliably based on the movement of the rotating member 53.

  (4) In the embodiment described above, the sliding member 89 is provided with the seal portion 95 at the portion that contacts the step 80. Therefore, the adhesiveness when the sliding member 89 contacts the step 80 is increased. As a result, the second through channel 67 can be switched between communication and non-communication more reliably.

  (5) In the embodiment described above, the rotating member 53 is urged by the second spring member 121 so as to be positioned at the first position. Therefore, by pressing the rotating member 53 only in the direction in which the rotating member 53 is positioned at the second position, the rotating member 53 is set to the first position by using the return force of the second spring member 121. It is possible to reciprocate between the second position. As a result, the rotation member 53 can be easily driven, and the structure can be simplified.

  (6) In the embodiment described above, the sliding member 89 is provided with the flange portion 93a. The flange portion 93a is brought into contact with the inner wall surface of the second through passage 67 in a clearance fit state. Accordingly, the sliding member 89 moves in the second through passage 67 while being guided by the flange portion 93a, and the movement is stabilized. As a result, switching between communication and non-communication of the second through passage 67 is stabilized.

  (7) In the embodiment described above, the flow path forming member 51 includes the groove forming member 57 and the film material 59. When the rotating member 53 is located at the first position, the film material 59 is interposed between the permanent magnet 105 and the sliding member 89. Therefore, the distance between the permanent magnet 105 and the sliding member 89 can be shortened, and the magnetic force generated by the permanent magnet 105 can be easily transmitted to the sliding member 89. As a result, the energy efficiency when the sliding member 89 is attracted by the permanent magnet 105 is improved.

  (8) In the above embodiment, the rotation member 53 is moved from the second position to the first position via the restriction member 55 by moving the ink cartridge 23 from the non-insertion position to the insertion position. It was made to be. Therefore, by moving the ink cartridge 23 from the non-insertion position to the insertion position, the communication and non-communication of the second through channel 67 can be switched. Therefore, it is not necessary to use a driving device such as an actuator in order to switch between communication and non-communication of the second through passage 67, and the entire device can be simplified. Further, even when the ink jet recording apparatus 11 is in a non-energized state, the communication and non-communication of the second through channel 67 can be switched, and the communication and non-communication of the second through channel 67 are switched. The degree of freedom in driving can be increased.

(9) In the above embodiment, when the ink cartridge 23 is in the non-insertion position, the second through passage 67 is in a non-communication state, and when the ink cartridge 23 is in the insertion position, the second penetration The flow path 67 is in a communication state. Therefore, when the ink cartridge 23 is not connected to the connection member 25, the supply tube 22 can be prevented from being opened to the atmosphere, and ink can leak out from the supply tube 22 or ink can be discharged. Drying can be effectively prevented.

  (10) In the above embodiment, when the ink cartridge 23 is in the non-insertion position, the rotation member 53 is restricted by the restriction member 55 so as to be located in the second position. Therefore, when the ink cartridge 23 is in the non-insertion position, the second through channel 67 can be maintained in a non-communication state. As a result, when the ink cartridge 23 is not connected to the connection member 25, the ink in the supply tube 22 can be more reliably prevented from leaking out or being dried.

  (11) In the above embodiment, the regulating member 55 includes the shaft portion 123, the one side portion 125, and the other side portion 127, and the one side portion 125 and the other side portion 127 form an angle of approximately 90 degrees. It was made to provide. When the restricting member 55 receives a pressing force from the ink cartridge 23 via the other side portion 127, the restricting member 55 rotates around the shaft portion 123, and restricts the movement of the rotating member 53 by the one side portion 125. It was made to cancel. Therefore, even if the pressing direction of the ink cartridge 23 and the moving direction of the rotating member 53 do not coincide with each other, the pressing force of the ink cartridge 23 is converted into the movement of the rotating member 53 by the regulating member 55. Can do. Therefore, it is not necessary to unify the insertion direction of the ink cartridge 23 and the movement direction of the rotating member 53 when designing the ink jet recording apparatus 11, and the degree of freedom in layout of the ink jet recording apparatus 11 is improved. Can do. As a result, the entire apparatus can be reduced in size.

  (12) In the above embodiment, the restriction member 55 is urged by the third spring member 133 so as to be positioned at the restriction position. Therefore, the regulating member 55 is pressed by the ink cartridge 23 only in the direction opposite to the urging direction by the third spring member 133, and the regulating member 55 is utilized by utilizing the restoring force of the third spring member 133. Can be reciprocated between the restricted position and the non-restricted position. As a result, the driving of the restricting member 55 becomes easy, and the structure can be simplified.

  (13) In the embodiment described above, the third spring member 133 that biases the restricting member 55 is a spring having a larger biasing force than the second spring member 121 that biases the rotating member 53. . Therefore, the regulating member 55 can reliably position the rotating member 53 at the second position when the ink cartridge 23 is located at the non-insertion position.

  (14) In the above embodiment, the side opposite to each needle portion 61 of each guide channel 101 formed on the channel forming member 51 is focused on one end of the channel forming member 51 (connecting member 25). Then, sliding members 89 are provided in the respective flow paths at the converged portions, that is, in the second through flow paths 67 connected to the lead-out member 83. Accordingly, since the plurality of sliding members 89 are collected at one end of the flow path forming member 51 (connecting member 25), a structure (the rotating member 53, the regulating member 55, etc.) for simultaneously operating the sliding members 89 is provided. It can be reduced in size and simplified, and can be provided without taking up space.

  (15) In the above embodiment, the guide cartridges 101 that respectively guide the ink supplied from the ink cartridges 23 formed on the channel forming member 51 are opened and closed simultaneously by attaching and detaching the ink cartridges 23. Therefore, it is not necessary to provide a special structure for the opening / closing operation, and the structure can be reduced in size and simplified.

In addition, you may change the said embodiment as follows.
In the above embodiment, the permanent magnet 105 is formed to have a substantially square plate shape, but may be changed to other shapes.

  In the above embodiment, six permanent magnets 105 are provided on one rotating member 53 so as to be integrally rotated. Alternatively, a plurality of rotating members 53 including the permanent magnets 105 may be provided, and each may be individually rotated.

  In the above embodiment, the sliding member 89 includes the magnetic body portion 93 and the seal portion 95. Alternatively, all of the sliding member 89 may be formed by the magnetic body portion 93.

In the above embodiment, the sliding member 89 includes the flange portion 93a. However, the sliding member 89 may not include the flange portion 93a.
In the above embodiment, the plate member 107 is provided on the rotating member 53. Alternatively, the plate material 107 may not be provided.

  In the above embodiment, in the flow path forming member 51, the film material 59 is interposed between the permanent magnet 105 and the sliding member 89 when the rotating member 53 is located at the first position. I did it. A member other than the film material 59 may be interposed.

  In the above-described embodiment, the rotation member 53 receives a pressing force based on the movement between the non-insertion position and the insertion position of the ink cartridge 23, and between the first position and the second position. It was moved. Alternatively, the rotating member 53 may be moved between the first position and the second position by receiving another pressing force.

  Further, as another pressing force, even when the ink cartridge 23 is located at the insertion position, even when the force enables the rotation member 53 to move between the first position and the second position. Good. This makes it possible to switch the second through flow path 67 between the communication state and the non-communication state in a state where the ink cartridge 23 is located at the insertion position. Then, the valve device can be made to function as a choke valve used for removing bubbles or the like remaining in the supply tube 22.

In the above embodiment, the restriction member 55 is provided, but it may not be provided. In such a case, the ink cartridge 23 moves between the non-insertion position and the insertion position, so that the rotating member 53 receives a direct pressing force from the ink cartridge 23, and the first position and You may make it change to the structure which reciprocates between 2nd positions.

  In the above embodiment, the restriction member 55 is configured by the shaft portion 123, the one side portion 125, and the other side portion 127. As long as it is possible to restrict the movement of the rotation member 53 based on the pressing force received from the ink cartridge 23, other configurations may be employed.

  In the above embodiment, the first spring member 91 is embodied as the first biasing means. This may be embodied in other urging means that urges the sliding member 89 to abut against the step 80.

  In the above embodiment, the second spring member 121 is embodied as the second urging means. This may be embodied in other urging means for urging the rotating member 53 so as to be positioned at the first position.

In the above embodiment, the third spring member 133 is embodied as the third urging means. This may be embodied in other urging means for urging the restricting member 55 so as to be positioned at the restricting position.

  In the above embodiment, the sliding member 89 is biased by the first spring member 91 so as to contact the step 80. Alternatively, the first spring member 91 may not be provided. In such a case, a spring member that biases the sliding member 89 away from the step 80 may be provided.

  In the above embodiment, the rotating member 53 is urged by the second spring member 121 so as to be positioned at the first position. Alternatively, the second spring member 121 may not be provided. In such a case, a spring member that biases the rotating member 53 so as to be positioned at the second position may be provided.

  In the above embodiment, the restriction member 55 is urged so as to be positioned at the restriction position by the third spring member 133. Alternatively, the third spring member 133 may not be provided. And in such a case, you may make it provide the spring member which urges | biases the control member 55 so that it may be located in a non-control position.

  In the embodiment described above, the ink jet recording apparatus 11 (including printing apparatuses such as a fax machine and a copier) that ejects ink has been described as the liquid ejecting apparatus. This may be embodied in a liquid ejecting apparatus that ejects another liquid. For example, as a liquid ejecting apparatus that ejects another liquid, a liquid ejecting apparatus that ejects a liquid such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL display, and a surface emitting display, or a living body used for biochip manufacturing It may be a liquid ejecting apparatus that ejects organic matter or a sample ejecting apparatus as a precision pipette.

  In the above embodiment, the valve device is constituted by the rotating member 53, the regulating member 55, the step 80, the sliding member 89, the first spring member 91, the second spring member 121, and the third spring member 133. It was made to be. As long as the rotation member 53, the level | step difference 80, and the sliding member 89 are provided, you may make it change so that it may become another structure. In addition, the valve device is provided between the supply tube 22 and the ink cartridge 23 of the ink jet recording apparatus 11, but may be embodied as a valve device provided in other portions.

1 is a perspective view of an ink jet recording apparatus according to an embodiment. Similarly, a perspective view of an ink cartridge. Similarly, sectional drawing of an ink cartridge. Similarly, the partial top view of a connection member. Similarly, the rear view of a connection member. Similarly, the partial rear view of a connection member. Similarly, the partial front view of a connection member. Similarly, the fragmentary sectional view of a connection member. Similarly, the perspective view of a guide member and a sliding member. Similarly, the exploded perspective view of a rotation member. Similarly, the partial rear view of a connection member. Similarly, the conceptual diagram which shows the positional relationship of a 2nd penetration channel and a permanent magnet. Similarly, the conceptual diagram which shows the positional relationship of a 2nd penetration channel and a permanent magnet. Similarly, the top view of an ink cartridge and a connection member. The figure explaining the effect | action of a connection member similarly.

Explanation of symbols

  P: a recording sheet as a target, 11: an ink jet recording apparatus as a liquid ejecting apparatus, 20 ... a recording head as a liquid ejecting head, 23 ... an ink cartridge as a liquid storage means, 25 ... a connecting member, 43a ... a liquid supply port As an ink lead-out path, 51: a flow path forming member, 53: a rotating member, 55: a regulating member as a regulating means, 57: a groove forming member, 59: a film material, 61: a needle portion, 63: a flow path The first through flow path, 67 ... the second through flow path constituting the flow path, 69 ... the groove, 80 ... the step as the valve seat, 89 ... the sliding member as the valve body, 91 ... the first attachment First spring member as a biasing means, 93... Magnetic body portion as a first magnetic body, 93 a... Flange portion as a guide portion, 95... Seal portion as a contact portion, 101. Flow path, 105 ... Magnet Permanent magnet 107, plate material as second magnetic body, 121, second spring member as second urging means, 123, shaft portion, 125, one side portion, 127, other side portion, 133 is a third spring member as third urging means.

Claims (15)

The flow path forming member is provided with a flow path for guiding each of the plurality of liquids stored in the liquid storage means, and each of the flow paths is simultaneously opened and closed based on the attachment / detachment operation of the liquid storage means. A valve device characterized in that a valve body is provided. The valve device according to claim 1,
The flow path forming member constitutes a connecting member that removably connects a liquid storing means storing a plurality of liquids,
A valve device characterized in that each of the flow paths is focused on one end of the connecting member, and the valve body is provided in each of the flow paths at the focused location. A valve seat provided in the middle of the flow path formed in the flow path forming member, and a first magnetic body located at least in part in the flow path, and in a positive direction and spaced toward the valve seat In the valve device comprising a valve body capable of closing the flow path by moving in the negative direction
A rotation member that has a magnet and is rotatable relative to the flow path forming member and movable from the first position to the second position by rotation;
The first position is:
A position at which the valve body is movable in the positive direction or the negative direction by an attractive force acting between the magnet and the first magnetic body;
The second position is
The valve device, wherein the valve body is at a position where the valve body does not move in the positive direction or the negative direction due to the suction force. The valve device according to claim 3,
A valve device comprising a first urging means for urging the valve body in a direction opposite to a direction attracted by the suction force. The valve device according to claim 3 or 4,
In the valve body, a contact portion with the valve seat is formed of an elastic material. In the valve apparatus as described in any one of Claims 3-5,
A valve device comprising: a second urging unit that urges the rotating member to be positioned at either the first position or the second position. In the valve apparatus as described in any one of Claims 3-6,
The valve device, wherein the valve body is integrally provided with a guide portion that abuts against an inner wall surface of the flow path. In the valve apparatus as described in any one of Claims 3-7,
The rotating member is
A valve device comprising a second magnetic body at a position facing the first magnetic body across the magnet when the rotating member is positioned at the first position. . Liquid storage means for storing liquid;
A liquid ejecting head that ejects the liquid from a nozzle to a target;
A flow path forming member;
In the liquid ejecting apparatus including the flow path that is formed in the flow path forming member and that guides the liquid from the liquid storage unit to the liquid ejecting head.
A valve seat provided in the middle of the flow path;
A valve body that is located in the flow path, includes a first magnetic body at least in part, and moves in a positive direction toward the valve seat and in a negative direction away from the valve seat, thereby closing the flow path;
A rotation member that has a magnet and is rotatable relative to the flow path forming member and is movable from the first position to the second position by rotation;
The first position is:
A position where the valve body is movable in the positive direction by an attractive force acting between the magnet and the first magnetic body;
The second position is
The liquid ejecting apparatus according to claim 1, wherein the valve body is in a position where the valve body does not move in the positive direction or the negative direction due to the suction force. The liquid ejecting apparatus according to claim 9, wherein
The flow path forming member includes a groove forming member in which a groove is formed, and a film material that forms the flow path by sealing the groove,
The film material is provided in a position in the flow path forming member such that the film member is interposed between the magnet and the valve body when the rotating member is located at the first position. A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 9 or 10,
The flow path forming member is:
A hollow needle portion communicating with the flow path is provided at an end portion on the liquid storage means side,
The liquid storage means is
A liquid supply port capable of supplying the liquid in the liquid storage means to the flow path by inserting the needle portion;
The rotating member is
The liquid storage means moves from a non-insertion position where the needle portion is not inserted into the liquid supply port to an insertion position where the needle portion is inserted into the liquid supply port. A liquid ejecting apparatus, wherein the liquid ejecting apparatus is provided at a position to be pressed so as to move from the second position to the first position. The liquid ejecting apparatus according to claim 11,
A regulation means capable of moving between a regulation position that regulates movement so that the rotation member is positioned at the second position and a non-regulation position that does not regulate movement of the rotation member;
The restricting means abuts on the liquid storing means, and the liquid storing means moves from the liquid storing means to the non-regulating position by moving from the non-inserting position to the inserting position. A liquid ejecting apparatus provided to be capable of receiving such a pressing force. The liquid ejecting apparatus according to claim 12,
The restricting means includes a shaft portion, one side portion sandwiching the coaxial portion and the other side portion, and is rotatable relative to the flow path forming member around the shaft portion,
The one side portion is provided so as to abut against the rotating member when the restricting means is located at the restricting position, and to restrict movement so that the rotating member is located at the first position. ,
The liquid ejecting apparatus according to claim 1, wherein the other side portion is provided so as to be able to receive the pressing force from the liquid storage means. The liquid ejecting apparatus according to claim 12 or 13,
A liquid ejecting apparatus comprising: a third urging unit that urges the restricting unit to be positioned at the restricting position. The liquid ejecting apparatus according to claim 14,
Second urging means for urging the rotating member to be positioned at the first position;
The liquid ejecting apparatus according to claim 1, wherein the second urging unit has a smaller urging force than the third urging unit.

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