JP4389587B2 - Tube valve and head cleaning device - Google Patents

Description

  The present invention relates to a tube valve and a head cleaning device.

In the conventional tube valve, the tube is crushed at a predetermined location on the tube through which the fluid flows, and the fluid flow path is closed (see, for example, Patent Document 1).
However, the tube valve described in Patent Document 1 has a drawback in that a large driving force is required and power consumption is large because the tube is crushed to close the flow path.

JP-A-8-189573

  An object of the present invention is a tube valve that can be driven with a small driving force with a simple configuration and can reduce power consumption. Furthermore, in addition to this, a tube valve and a head that can be reduced in size and weight. It is to provide a cleaning device.

Such an object is achieved by the present invention described below.
The tube valve of the present invention has a flow path through which a fluid is circulated, and can be closed by bending the tube, and at least a part of the tube is curved,
An opening / closing mechanism is provided that bends the tube to close the flow path at a curved portion of the tube and releases the bending of the tube to open the flow path.

According to this invention, since the tube is bent to close the fluid flow path, the flow path is reliably opened and closed with a small driving force compared to a tube valve that closes the flow path by crushing the tube with an external force. can do. Thereby, power consumption can be reduced.
Moreover, since the tube is bent to close the fluid flow path at the curved portion of the tube, the flow path can be opened and closed more easily and reliably.
In addition, a tube valve with a simple configuration can be realized.

In the tube valve of the present invention, it is preferable that the opening / closing mechanism is configured to open and close the flow path at one place of the tube.
Thereby, a structure can be simplified more.
In the tube valve according to the present invention, the opening / closing mechanism includes a rotating part that has a cam part and is rotatably provided, and the cam part acts by the rotation of the rotating body to bend the tube. Is preferred.
Thereby, a flow path can be opened and closed smoothly.

In the tube valve of the present invention, it is preferable to have guide means for regulating the bending direction of the tube.
Thereby, a tube can be bent appropriately and a fluid channel can be closed more certainly.
In the tube valve of the present invention, it is preferable that the guide means includes a movable body that is movably provided and has a support portion that supports the tube in the vicinity of a portion where the tube is bent.
As a result, direct contact between the tube and the opening / closing mechanism is prevented, and damage to the tube due to contact with the opening / closing mechanism is prevented.

The tube valve of the present invention includes a movable body that is movably provided and has a support portion that supports the tube and a contact portion that contacts the cam portion of the rotating body in the vicinity of a portion where the tube is bent.
It is preferable that the rotation of the rotating body causes the cam portion to press the contact portion of the moving body so that the moving body moves and the tube is bent.
Thereby, a tube can be bent appropriately and a fluid channel can be closed more certainly. Further, direct contact between the tube and the opening / closing mechanism is prevented, and breakage of the tube due to contact with the opening / closing mechanism is prevented.

The tube valve of the present invention has a flow path for circulating a fluid therein, and a plurality of tubes capable of closing the flow path by bending,
An actuator; a plurality of opening / closing means corresponding to the plurality of tubes; and a power transmission mechanism for transmitting a driving force of the actuator to the opening / closing means and interlocking the opening / closing means. And an opening / closing mechanism for bending the tubes to close the flow paths and releasing the bending of the tubes to open the flow paths.

According to this invention, since the tube is bent to close the fluid flow path, the flow path is reliably opened and closed with a small driving force compared to a tube valve that closes the flow path by crushing the tube with an external force. can do. Thereby, power consumption can be reduced.
In addition, a plurality of flow paths can be opened and closed, and a reduction in size and weight can be achieved.
In addition, a tube valve with a simple configuration can be realized.

The tube valve according to the present invention includes a plurality of stacked substrates corresponding to the plurality of tubes, and each of the tubes is positioned so that a portion where the tube is bent is positioned on the corresponding substrate. It is preferable to be installed on the substrate.
Thereby, it can be made more compact.
In the tube valve of the present invention, it is preferable that one actuator is provided.
Thereby, further size reduction and weight reduction can be achieved.
In the tube valve of the present invention, it is preferable that each of the tubes is provided so that at least a part thereof is curved, and the flow path is closed by being bent at the curved portion.
Thereby, a flow path can be opened and closed more easily and reliably.

In the tube valve of the present invention, it is preferable that the opening / closing mechanism is configured to selectively open or close only the flow paths of one or more predetermined tubes among the tubes.
Thereby, it is possible to freely take a state where only the flow path of the predetermined (specific) tube is opened and a state where only the flow path of the predetermined (specific) tube is closed.

In the tube valve of the present invention, it is preferable that the opening / closing mechanism is configured to open or close the flow paths of all the tubes.
Thereby, the state where the flow paths of all the tubes are opened and the state where the flow paths of all the tubes are closed can be taken freely.
In the tube valve of the present invention, the opening / closing mechanism includes a first mode in which only one or two or more predetermined tube flow paths among the tubes can be selectively opened or closed, and all of the tubes. It is preferable to have a second mode in which the flow path can be opened or closed.
Thereby, versatility becomes wide.
In the tube valve according to the present invention, each of the opening / closing means has a cam part and includes a rotatable rotating body, and the cam part acts by rotation of the rotating body so that the tube It is preferably bent.
Thereby, a flow path can be opened and closed smoothly.

In the tube valve of the present invention, it is preferable that the rotation center axes of the respective rotating bodies substantially coincide.
Thereby, a structure can be simplified more.
In the tube valve of the present invention, it is preferable to have guide means for regulating the bending direction of the tube.
Thereby, a tube can be bent appropriately and a fluid channel can be closed more certainly.

In the tube valve of the present invention, it is preferable that the guide means includes a movable body that is movably provided and has a support portion that supports the tube in the vicinity of a portion where the tube is bent.
This prevents direct contact between the tube and the opening / closing means, and prevents damage to the tube due to contact with the opening / closing means.

In the tube valve of the present invention, the contact corresponding to the plurality of tubes and provided so as to be movable, and in contact with the support portion for supporting the tube and the cam portion of the rotating body in the vicinity of the bent portion of the tube. A plurality of moving bodies having a portion,
It is preferable that the cam portion presses the contact portion of the moving body by the rotation of each rotating body, and the moving body moves to bend the tube.
Thereby, a tube can be bent appropriately and a fluid channel can be closed more certainly. Further, direct contact between the tube and the opening / closing means is prevented, and breakage of the tube due to contact with the opening / closing means is prevented.

In the tube valve of the present invention, it is preferable that the tube is restored from a bent state by its own restoring force and the flow path is opened.
Thereby, a structure can be simplified more and weight reduction can be achieved.
In the tube valve of the present invention, it is preferable to have a restoration assisting means for assisting the restoration of the tube.
Thereby, a tube can be restored more reliably and a flow path can be opened.

The head cleaning device of the present invention is a head cleaning device for cleaning the head of a printer,
When cleaning the head, a receiving portion that is detachably attached to the head and receives ink discharged from the nozzle of the head;
A pump for sucking ink from the nozzles of the head through the receiving portion;
It is provided with the tube valve of this invention provided in the flow path between the said pump and the said receiving part.

Hereinafter, a tube valve and a head cleaning device of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
(First embodiment)
1 is a perspective view showing a first embodiment of the tube valve of the present invention, FIG. 2 is a plan view of the tube valve shown in FIG. 1, and FIG. 3 is a side view (right side view) of the tube valve shown in FIG. ).

  In the tube valve 1 shown in these drawings, a fluid flow path is constituted by the lumen of the tube (tubular member) 6, and the tube 6 is provided so that a part (one portion) is bent (bent). The tube 6 is bent (bent) at one portion of the tube 6 to close (seal) the fluid flow path, and the bending of the tube 6 is released to open (open) the flow path. It is characterized in that That is, the tube valve 1 is provided with a portion (opening / closing part) for opening and closing the flow path in the tube 6, and the tube 6 is bent at the opening and closing part to close the flow path. Is released and the flow path is opened (opened). Hereinafter, description will be given based on the drawings.

  As shown in FIGS. 1 to 3, the tube valve 1 includes a flexible (recoverable) tube 6, a frame (substrate) 2, a rotating body 3, and a motor (actuator) 5 as a driving source. And a guide (guide means) 7 which is a moving body. The rotating body 3 and the motor 5 constitute a main part of an opening / closing mechanism that bends the tube 6 to close the flow path and releases the bending of the tube 6 to open the flow path.

The frame 2 is configured by a plate-like member having a substantially rectangular shape in plan view, and has a concave portion 21 having a predetermined shape on the left side in FIG. In this recess 21, the rotating body 3, the tube 6 and the guide 7 are accommodated, and these are arranged on substantially the same plane. Thereby, the relative positional relationship and displacement direction of the rotating body 3, the tube 6, and the guide 7 are regulated.
Further, a cover 22 is attached to the frame 2 from the left side in FIG. 3 in a state where the rotating body 3, the tube 6 and the guide 7 are accommodated in the recess 21. As a result, the rotating body 3, the tube 6 and the guide 7 are held in the concave portion 21 of the frame 2, and the protrusion of these is prevented.
A cylindrical portion 23 is provided on the right side of the frame 2 in FIG. The motor 5 is accommodated in the cylindrical portion 23.
The constituent material of the frame 2 is not particularly limited, but various resin materials are preferable. By using a resin material, the weight can be reduced.

The rotating body 3 is a planar cam, and is configured by a disk member having a substantially semicircular shape in plan view. The outer peripheral portion of the rotating body 3 is a cam portion, that is, the outer peripheral surface constitutes a cam surface. The rotating body 3 is accommodated in the recess 21 of the frame 2 so as to be rotatable substantially parallel to the frame 2.
The rotating body 3 is fixed to the shaft portion 53 of the motor 5, and a driving force (rotational force) is applied from the motor 5 to the rotating body 3 through the shaft portion 53. Thereby, the rotating body 3 rotates with the shaft portion 53 as the rotation axis, and the outer peripheral surface (cam surface) acts on the guide 7, and the guide 7 corresponds to the peripheral surface shape (cam surface) of the rotating body 3. Perform periodic motion (reciprocating motion). As a result, the tube 6 is bent (bent), and the bending is released (restored). The relationship between the rotation of the rotating body 3 and the bending of the tube 6 will be described later.
Moreover, the outer peripheral surface of the rotary body 3 is formed smoothly. That is, the corners of the semicircle are rounded. Thereby, the rotating body 3 is prevented from being caught on the guide 7 when the tube valve 1 is driven (actuated), and can be driven more smoothly.

The phase (rotation angle) of the rotating body 3 is controlled by driving control of the motor 5.
In addition, although the constituent material of the rotary body 3 is not specifically limited, various resin materials are preferable. By using a resin material, the weight can be reduced.
The front end side of the motor 5 is inserted into the tubular portion 23 of the frame 2, and is fastened by the fixing ring 52 from the outer periphery of the tubular portion 23 at the body portion 51 to be fixed to the frame 2. Further, the shaft portion 53 of the motor 5 is inserted through the frame 2, and the rotating body 3 is fixed to the distal end side of the shaft portion 53 (see FIGS. 1 and 3). Thereby, the motor 5 rotates the rotating body 3 from the right side of the frame 2 in FIG.

As the motor 5, for example, a stepping motor, a DC motor with an encoder, or the like is preferably used. Thereby, control of the phase (rotation angle) of the rotary body 3 can be performed easily and reliably.
It is also preferable to use a motor with a speed reducer having a planetary gear or the like as the motor 5. Thereby, the motor 5 rotates at a low speed without providing a speed reduction mechanism separately, and a high torque is obtained.
It should be noted that another form of motor may be used as the motor 5, and another form of actuator may be used instead of the motor 5.

  The tube 6 is a tubular member having flexibility (softness) that can be easily bent by an external force and a restoring property that restores the original shape when the external force is released. That is, the tube 6 can be easily bent by a force (load) from a direction (radial direction) substantially perpendicular to the longitudinal direction, and can be restored to its original shape when the force is released. It is like that.

The lumen of the tube 6 constitutes a flow path through which fluid flows. In addition, the fluid which distribute | circulates is not specifically limited, For example, various gas, various liquids, etc. are mentioned.
Further, when the tube 6 is bent (when the bending amount reaches a predetermined amount), the flow path is closed, and when the bend is released (when restored to the original shape), the flow path is opened. Yes.
In addition, the restoring force of the tube 6 is so large that the pressure in a flow path is high.

The constituent material of the tube 6 is not particularly limited, and examples thereof include various rubber materials such as silicone rubber and various resin materials such as various thermoplastic elastomers, and among these, the bending property and the resilience are excellent. Thus, various rubber materials and elastic materials such as various thermoplastic elastomers are preferable.
In the illustrated example, one end 61 of the tube 6 is connected to the high pressure side, and the other end 62 is connected to the low pressure side. When the flow path of the tube 6 is open, the fluid flows in the tube 6 from the end 61 side (high pressure side) to the end 62 side (low pressure side). Note that one end 61 of the tube 6 may be connected to the low pressure side, and the other end 62 may be connected to the high pressure side.

Further, the frame 6 is arranged such that one of the tubes 6 is located on the upper side in FIG. 2 (projects from the upper side in FIG. 2) and the other is located on the lower side in FIG. 2 (projects from the lower side in FIG. 2). Is accommodated (attached) in the recess 21. In this case, the tube 6 is disposed on the left side of the frame 2 in FIG. 2, that is, on the left side of the rotating body 3 in FIG. 2.
The tube 6 has a bent portion (bent portion) 64 bent (curved) in a substantially U shape (see FIG. 5). The tube 6 is bent at the bent portion 64, and the flow is reduced. The path is closed, the tube 6 is released from bending, and the flow path is opened.

Here, the tube 6 is disposed such that the bent portion 64 is located on the rotation locus of the outer peripheral surface of the rotating body 3.
When the rotating body 3 rotates, the tube 6 is pushed in by receiving an external force from the outer peripheral surface of the rotating body 3 on the protruding side (the side with the semicircular arc) via a guide 7 which will be described later. And bends in an approximately M shape (see FIG. 2). Thereby, the flow path is closed at the bent portion 64. In this case, bent portions are formed at two locations on the upper and lower sides of the guide 7 in the figure, but the flow path is closed at least at one of the bent portions. Further, the flow path may be closed at the same time at the two bent portions. Moreover, you may be comprised so that it may be bent so that only one folding part may be formed instead of M shape.
Further, when the rotating body 3 rotates and the outer peripheral surface of the flat side (the side without the semicircular chord) moves to a predetermined position, the tube 6 removes the external force from the rotating body 3 and the self Restoration is performed by restoring force (elastic force), and the flow path is opened (see FIG. 5).

As described above, the tube 6 receives the external force from the outer peripheral surface of the rotating body 3 at the bending portion 64 by the rotation of the rotating body 3 and is restored to the bent state, that is, the state where the flow path is closed. The state where the flow path is opened can be taken. Then, by stopping the rotating body 3 at a predetermined phase (position), it is possible to maintain (maintain) the state at that time (the state where the flow path is closed or the state where the flow path is opened).
Further, the tube 6 is held (supported) and guided by the guide 7 which is a moving body at the bent portion 64.

The guide 7 is generally T-shaped as a whole, and includes a cylindrical holding portion (supporting portion) 71 and a rod-shaped slide portion 72 provided substantially perpendicular to the holding portion 71. The tube 6 is inserted into the holding portion 71 of the guide 7 and is held (supported) by the holding portion 71.
Further, on the rotating body 3 side of the holding portion 71, a convex portion (contact portion) 74 having a tip surface curved in a substantially arc shape is formed. The convex portion 74 abuts (contacts) the outer peripheral portion (cam portion) of the rotating body 3, that is, the outer peripheral surface (cam surface). Thereby, a necessary and sufficient gap is formed between the outer peripheral surface of the rotating body 3 and the tube 6, and contact between the rotating body 3 and the tube 6 is prevented. Therefore, damage to the tube 6 due to contact with the rotating body 3 when the tube valve 1 is driven can be prevented more reliably.

  The guide 7 is accommodated in the recess 21 of the frame 2. The concave portion 21 of the frame 2 is formed in a groove shape corresponding to the slide portion 72 at a portion where the slide portion 72 of the guide 7 is disposed (accommodated), and the slide direction (movement direction) of the slide portion 72 is determined. regulate. The guide 7 slides in the radial direction of the rotating body 3 with respect to the frame 2 along the concave portion 21. That is, when the tube valve 1 is driven, the rotational motion of the rotating body 3 is converted into the linear motion of the guide 7 in the radial direction of the rotating body 3 by the outer peripheral surface of the rotating body 3, the guide 7 and the recess 21. .

The guide 7 linearly reciprocates in the plane of the frame 2 to regulate the bending direction of the tube 6 so that the bent portion 64 of the tube 6 is bent into a substantially M shape and then restored. To do. Thereby, the flow path in the tube 6 can be reliably opened and closed.
In addition, although the constituent material of the guide 7 is not specifically limited, various resin materials are preferable. By using a resin material, the weight can be reduced.

Next, the operation (operation) of the tube valve 1 will be described.
4, 5 and 6 are plan views of the tube valve shown in FIG. That is, FIG. 4, FIG. 5 and FIG. 6 respectively show a state in which the tube valve 1 shown in FIG. 2 is in an initial state, and the rotating body 3 is rotated 90 degrees clockwise from the initial state (FIG. 4) and 180 degrees. The state (FIG. 5) and the state rotated by 270 degrees (FIG. 6) are shown.

When the tube valve 1 is driven, the motor 5 is driven and the rotating body 3 rotates clockwise in the figure. Further, the drive control of the tube valve 1 is performed by the drive control of the motor 5.
In this tube valve 1, in the initial state shown in FIG. 2, the projecting side of the rotating body 3 (side with the semicircular arc) faces the bent portion 64 side of the tube 6, and the flat side (semicircular string) (The side not present) is directed to the opposite side of the bent portion 64.
In this state, the bent portion 64 of the tube 6 is bent in an approximately M shape, and the flow path is closed.

Next, when the rotating body 3 is rotated 90 degrees clockwise, as shown in FIG. 4, the bent portion 64 is bent and the state where the flow path is closed is maintained.
Next, when the rotating body 3 further rotates 90 degrees clockwise (180 degrees from the initial state shown in FIG. 2), the rotating body 3 releases the bending of the bent portion 64 as shown in FIG. That is, the flat side of the rotating body 3 faces the bent portion 64 side of the tube 6, the pressure from the rotating body 3 to the guide 7 is released, and the bent portion 64 is restored by its own restoring force, and the flow path of the bent portion 64 is restored. Is released.
As a result, the high-pressure side fluid flows from the high-pressure end 61 toward the low-pressure side through the flow path in the tube 6 and is discharged from the low-pressure end 62.

Next, when the rotating body 3 further rotates 90 degrees clockwise (270 degrees from the initial state shown in FIG. 2), as shown in FIG. 6, the rotating body 3 bends the bent portion 64 in a substantially M shape. . As a result, the flow path is closed at the bent portion 64.
Next, when the rotating body 3 further rotates 90 degrees clockwise (one rotation from the initial state shown in FIG. 2), the initial state shown in FIG. 2 is restored. That is, the state where the bent portion 64 is bent and the flow path is closed is maintained.

  As described above, in the tube valve 1, by the rotation of the rotating body 3, the bent portion 64 of the tube 6 can be bent, the flow path can be closed, the bending can be released, and the flow path can be opened. In other words, the bent portion 64 of the tube 6 can be bent and restored, that is, the channel is closed and the channel is opened. Then, by stopping the rotating body 3 at a predetermined phase (position), it is possible to maintain (maintain) the state at that time (the state where the flow path is closed or the state where the flow path is opened).

As described above, according to the tube valve 1, the tube 6 is bent to close the fluid flow path, so that the tube valve 1 is smaller than a tube valve that closes the flow path by crushing the tube 6 with an external force. The flow path can be reliably opened and closed by the driving force.
In addition, the tube valve 1 has an advantage that the energy (power consumption) required for driving is small as compared with a conventional electromagnetic valve or a tube valve of a type in which the tube 6 is crushed to close the flow path.

  Further, in this tube valve 1, by stopping the rotating body 3, it is possible to maintain a state where the flow path is closed or a state where the flow path is opened. Power is required only when changing from a closed state to a state where the flow path is open, or when changing from a state where the flow path is open to a state where the flow path is closed. Further reduction can be achieved.

Further, in this tube valve 1, since the tube 6 is bent at the bent portion 64 of the tube 6 to close the fluid flow path, the tube 6 can be bent easily and reliably and the bending can be released. (The channel can be opened and closed).
Moreover, in this tube valve 1, since the flow path is opened and closed at one place of the tube 6 using a single rotating body 3 having a cam portion, the number of parts is small, the structure is simple, the size is reduced, It is advantageous for weight reduction, and can perform open / close control easily and reliably.

Further, in the tube valve 1, the weight can be further reduced by forming a portion other than the motor 5 from a resin material.
Further, in the tube valve 1, the tube 6 can be easily arranged. That is, the tube 6 can be accommodated in the frame 2 without being cut and the cover 22 can be attached, so that there is an advantage that it can be retrofitted to the existing tube 6.

(Second Embodiment)
Next, a second embodiment of the tube valve of the present invention will be described.
FIG. 7 is a plan view showing a second embodiment of the tube valve of the present invention.
Hereinafter, the tube valve 1 of the second embodiment will be described with a focus on the differences from the first embodiment described above, and description of similar matters will be omitted.

As shown in FIG. 7, the tube valve 1 of the second embodiment is characterized in that it has a restoration assisting means for assisting the restoration of the tube 6. That is, the tube valve 1 has a spring (elastic member) 73 as a restoration assisting means at the end of the slide portion 72 of the guide 7.
The spring 73 is installed in a slightly contracted state, and biases the guide 7 toward the rotating body 3 (left side in FIG. 7) by its restoring force (elastic force).

In this tube valve 1, when the guide 7 is pressed by the rotating body 3 and the tube 6 is bent in a substantially M shape at the bent portion 64, the spring 73 further contracts. Thereafter, when the rotating body 3 rotates, as shown in FIG. 7, the guide 7 is pressed to the left in FIG. 7 by the restoring force of the tube 6 and the restoring force (elastic force) of the spring 73. Is restored, and the flow path of the bent portion 64 is opened.
Thus, according to this tube valve 1, the action of the spring 73 can restore the tube 6 more reliably and open the flow path.
Moreover, in this tube valve 1, the effect similar to 1st Embodiment mentioned above is acquired.
This embodiment can also be applied to each of the fourth and subsequent embodiments described later.

(Third embodiment)
Next, a third embodiment of the tube valve of the present invention will be described.
FIG. 8 is a plan view showing a third embodiment of the tube valve of the present invention.
Hereinafter, the tube valve 1 of the third embodiment will be described focusing on the differences from the first embodiment described above, and the description of the same matters will be omitted.

As shown in FIG. 8, the tube valve 1 of the third embodiment is characterized in that an electromagnetic actuator 4 for moving the guide 7 is provided as an actuator of the opening / closing mechanism.
The actuator 4 has a permanent magnet 41 and a pair of electromagnets 42 and 43 installed on both sides of the permanent magnet 41 via the permanent magnet 41.
The permanent magnet 41 has a rod shape, and is magnetized so that one end side (upper side in FIG. 8) is an N pole and the other end side (lower side in FIG. 8) is an S pole. In addition, one end of the permanent magnet 41 is fixed to the base end (the end opposite to the holding portion 71) of the slide portion 72 of the guide 7.

The electromagnets 42 and 43 are fixedly installed on the frame 2, respectively. Further, the electromagnet 42 is disposed on the left side of the permanent magnet 41 in FIG. 8, and the electromagnet 43 is disposed on the right side of the permanent magnet 41 in FIG. 8.
Each of the electromagnets 42 and 43 has an iron core 44 that is substantially U-shaped in plan view, and a coil 45 that is wound around the iron core 44. The iron core 44 of the electromagnet 42 and the iron core 44 of the electromagnet 43 are installed in such a posture that their tip surfaces face each other.

The coil 45 of the electromagnet 42 and the coil 45 of the electromagnet 43 are composed of one winding 46 and are wound in opposite directions. For this reason, when a current is passed through the coils 45 of the electromagnets 42 and 43 via the winding 46, the iron cores 44 of the electromagnets 42 and 43 are excited so that their polarities are opposite to each other.
That is, when a current is passed through the winding 46 in a predetermined direction by an energization circuit (not shown), the iron core 44 of the electromagnet 42 has an S pole on one end side (upper side in FIG. 8) and an N pole on the other end side. Conversely, the iron core 44 of the electromagnet 43 is excited so that one end side (upper side in FIG. 8) is an N pole and the other end side is an S pole.
Further, when a current is passed through the winding 46 in the opposite direction by the energizing circuit, the iron core 44 of the electromagnet 42 has an N pole on one end side (upper side in FIG. 8) and an S pole on the other end side. Conversely, the iron core 44 of the electromagnet 43 is excited so that one end side (upper side in FIG. 8) is the S pole and the other end side is the N pole.

Next, the operation of the tube valve 1 will be described.
In a state where the winding 46 is not energized, the permanent magnet 41 is attracted to the iron core 44 of one of the electromagnets 42 and 43 by its magnetic force.
In the illustrated example, the permanent magnet 41 is attracted to the iron core 44 of the electromagnet 43 by its magnetic force. In this state, the bent portion 64 of the tube 6 is bent in an approximately M shape, and the flow path is closed.

Next, when a current is passed through the winding 46 in a predetermined direction, the iron core 44 of the electromagnet 42 is excited so that one end side (upper side in FIG. 8) becomes the S pole and the other end side becomes the N pole. The iron core 44 of 43 is excited so that one end side (upper side in FIG. 8) is an N pole and the other end side is an S pole.
Thereby, the permanent magnet 41 receives an attracting force from the iron core 44 of the electromagnet 42, receives a repulsive force from the iron core 44 of the electromagnet 43, moves to the electromagnet 42 side, and is attracted to the iron core 44 by a magnetic force. At this time, the guide 7 moves to the electromagnet 42 side together with the permanent magnet 41, whereby the bent portion 64 is restored (the bending is released) and the flow path is opened.
Thereafter, even when the energization to the winding 46 is stopped, the permanent magnet 41 is attracted to the iron core 44 of the electromagnet 42 by the magnetic force. Thereby, the bending of the bent portion 64 is released, and the state where the flow path is opened is maintained. Thereby, power consumption can be reduced.

Next, when a current is passed through the winding 46 in the opposite direction, the iron core 44 of the electromagnet 42 is excited so that one end side (upper side in FIG. 8) is an N pole and the other end side is an S pole. The iron core 44 of the electromagnet 43 is excited so that one end side (upper side in FIG. 8) is an S pole and the other end side is an N pole.
Thereby, the permanent magnet 41 receives an attracting force from the iron core 44 of the electromagnet 43, receives a repulsive force from the iron core 44 of the electromagnet 42, moves to the electromagnet 43 side, and is attracted to the iron core 44 by a magnetic force. At this time, the guide 7 moves to the electromagnet 43 side together with the permanent magnet 41, whereby the bent portion 64 is bent and the flow path is closed.
Thereafter, even when the energization to the winding 46 is stopped, the permanent magnet 41 is attracted to the iron core 44 of the electromagnet 43 by the magnetic force. As a result, the bent portion 64 is bent and the state where the flow path is closed is maintained. Thereby, power consumption can be reduced.
According to this tube valve 1, the same effect as the first embodiment described above can be obtained.

(Fourth embodiment)
Next, a fourth embodiment of the tube valve of the present invention will be described.
FIG. 9 is a perspective view showing a fourth embodiment of the tube valve of the present invention, and FIG. 10 is a view (perspective view and plan view) showing a rotating body of the tube valve shown in FIG. In this case, FIG. 10A is a perspective view seen from the back side of the rotating body, FIG. 10B is a plan view of the rotating body, and FIG. Each perspective view is shown.
Hereinafter, the tube valve 1 of the fourth embodiment will be described with a focus on the differences from the first embodiment described above, and description of similar matters will be omitted.

As shown in these drawings, the tube valve 1 of the fourth embodiment is a quadruple type, and the four tubes 6 and each tube 6 are bent to close each flow path, and the bending of each tube 6 is released. And an opening / closing mechanism that opens each flow path. The opening / closing mechanism transmits a single motor 5, four opening / closing means, a driving force of the motor 5 to each opening / closing means, and each opening / closing means. It is characterized by having a power transmission mechanism to be interlocked.
That is, as shown in FIG. 9, the tube valve 1 of the fourth embodiment has a single motor 5 and four unit units 10.
The basic configuration of each unit 10 is substantially the same as that of the tube valve 1 of the first embodiment except for the motor 5 except for the rotating body 3.

  As shown in FIG. 10, a shaft 31 having a substantially rectangular shape in plan view (cross section) is formed at a position corresponding to the shaft portion 53 of the motor 5 on one surface of the rotating body 3 of the unit unit 10. A concave portion 32 having a substantially quadrangular shape in plan view (cross section) is formed at a position corresponding to the shaft 31 on the other surface. The size of the recess 32 is set to be slightly larger than the shaft 31 so that the shaft 31 of another rotating body 3 can be inserted therein. Further, the shaft 31 and the concave portion 32 are formed so that their corners substantially coincide with each other.

  As shown in FIG. 9, the frames 2 of the unit units 10 are stacked (fixed) so as to be substantially parallel to each other and the corners of the unit units 10 substantially coincide with each other. In this case, in the illustrated example, the frames 2 of the unit units 10 are stacked at a predetermined interval. However, the present invention is not limited thereto, and for example, the frames 2 of the adjacent unit units 10 may be brought into close contact with each other. . By laminating each frame 2, it can be made more compact.

Further, the shaft 31 of each rotating body 3 is inserted into the recess 32 of the adjacent rotating body 3 and is fitted in the recess 32. Further, a shaft substantially the same as the shaft 31 is fixed to the distal end portion of the shaft portion 53 of the motor 5, and the shaft is inserted into the concave portion 32 of the rotating body 3 of the rightmost unit unit 10 in FIG. And is fitted (fixed) into the recess 32. Thus, the rotation center axes of the respective rotating bodies 3 are substantially coincident.
Each rotating body 3 is provided such that the phase of the predetermined rotating body 3 is different from the phases of the other rotating bodies 3.

  That is, in the state shown in FIG. 9, the rotating body 3 of the leftmost unit unit 10 in FIG. 9 is installed in the posture shown in FIG. 4, and the rotating body 3 of the second unit unit 10 from the left in FIG. 5 is installed in the posture shown in FIG. 5, and the rotating unit 3 of the third unit unit 10 from the left in FIG. 9 is installed in the posture shown in FIG. 6, and the rotation of the rightmost unit unit 10 in FIG. The body 3 is installed in the posture shown in FIG.

A driving force (rotational force) is applied to each rotating body 3 from the motor 5 via the shaft provided at the tip of the shaft portion 53 of the motor 5 or the shaft 31 of the rotating body 3. That is, by driving the motor 5, each rotating body 3 rotates in conjunction with each other while maintaining the phase difference.
The rotating body 3 constitutes the main part of the opening / closing means in the unit unit 10, and the shaft 31 and the recess 32 of the rotating body 3 constitute the main part of the power transmission mechanism.

In this tube valve 1, only one predetermined (specific) tube 6 among the four tubes 6 can selectively restore the bent portion 64 and open the flow path. In other words, only the three predetermined (specific) tubes 6 can be selectively bent and the flow path can be closed.
That is, in the state shown in FIG. 9, only the flow paths of the tubes 6 of the second unit unit 10 from the left in FIG. 9 are opened, and the flow paths of the tubes 6 of the remaining three unit units 10 are all closed. Yes.

Next, when each rotating body 3 rotates 90 degrees clockwise, the flow path of the tube 6 of the second unit unit 10 from the left is closed, and the flow path of the tube 6 of the leftmost unit unit 10 is opened. .
Next, when each rotating body 3 further rotates 90 degrees clockwise, only the flow path of the tube 6 of the rightmost unit unit 10 in FIG. 9 is opened, and the flow paths of the tubes 6 of the remaining three unit units 10. Are all closed.

Next, when each rotating body 3 further rotates 90 degrees clockwise, the flow path of the tube 6 of the third unit unit 10 from the left is opened, and the flow paths of the tubes 6 of the remaining three unit units 10 are closed. Is done.
According to this tube valve 1, the same effect as the first embodiment described above can be obtained.
And in this tube valve 1, by the drive of the single motor 5, the four rotary bodies 3 rotate in conjunction, only the flow path of one predetermined tube 6 is opened among the four tubes 6, A state in which the remaining three tubes 6 are closed can be realized for the tubes 6 of each unit.

In particular, when the phase of the rotating body 3 (rotation angle) can be grasped as the motor 5, for example, when a stepping motor, a DC motor with an encoder, or the like is used, the tube of the desired unit unit 10 is surely obtained. Only 6 channels can be opened.
In addition, the tube valve 1 can be reduced in size and weight.
In addition, in this embodiment, it is comprised so that only the flow path of one predetermined tube 6 among the four tubes 6 can be open | released, or only the flow path of three predetermined tubes 6 can be selectively closed. However, the present invention is not limited to this. For example, only the flow paths of two or more predetermined tubes 6 may be selectively opened.

Moreover, in this invention, the flow path of the tube 6 of all the unit units 10 may be comprised so that it may be open | released or closed simultaneously.
In the present invention, the number of tube valve unit units 10 (tubes 6) is not limited to four (four), but may be two, three, or five or more.
In the present invention, for example, in the case of four stations, the shape of the shaft 31 and the recess 32 of the rotating body 3 in a plan view is a quadrangle. The number of rotating bodies 3 (unit units 10) to be interlocked can be adjusted by adjusting the number of corners of the polygonal shaft 31 and the recess 32, such as a triangular shape.

Further, in the present invention, for example, the shape of the shaft 31 and the recess 32 of the rotating body 3 in a quadruple shape is a pentagon, and a phase for closing the tubes 6 of all the unit units 10 can be added. .
Further, in the present invention, for example, a dodecagonal shaft 31 is used, and selection such as 2, 3, 4, 6, or 12 can be performed at the time of assembly.
Moreover, in this invention, the rotary body 3 of the several unit unit 10 can also be made into the same phase, and can also be combined.

(Application example of tube valve)
Next, as an application example of the tube valve of the present invention, when the tube valve of the present invention is applied to a valve of a head cleaning device that cleans the head of a printer such as an ink jet printer (ink jet printer), for example, An embodiment of a head cleaning device provided with the tube valve of the present invention will be described.

FIG. 11 is a diagram schematically showing an embodiment of a head cleaning device including the tube valve shown in FIG.
As shown in FIG. 11, the head cleaning device 200 is provided in four cap-shaped receiving portions 210, a pump 220, a waste liquid portion 230, and a flow path (line) between the pump 220 and each receiving portion 210. The tube valve 1 of the fourth embodiment shown in FIG. 9 is provided.

Each of the receiving portions 210 is detachably attached to the head 300 when cleaning the head 300 of the printer, and receives ink discharged from the corresponding nozzle 310 of the head 300.
One end side of each tube 6 of the tube valve 1 is connected to the corresponding receiving part 210, and the other end side is connected to the flow path on the pump 220 side.

The pump 220 sucks (cleans) ink from each nozzle 310 of the head 300 via each receiving portion 210. By this suction processing (pumping processing), for example, ink clogging of the head 300 can be eliminated. For example, a tube pump or the like can be used as the pump 220.
The ink sucked by the pump 220 is discharged (discharged) from each receiving part 210 to the waste liquid part 230 through the flow path in each tube 6 of the tube valve 1 and the flow path in the subsequent stage.

  Here, when there is no valve between the head 300 and the pump 220, the tube pump (pump 220) tends to increase in size with the increase in the size of the head 300, and the volume of the tube of the tube pump increases. Power consumption increases. In addition, when the head is clogged, the ink is simultaneously sucked from all the nozzles 310 and is discharged, so that the wasteful ink increases.

According to the head cleaning device 200 of the present embodiment, when the tube valve 1 whose phase is known is used, for example, if only the nozzle 310 that discharges ink of a predetermined color of the head 300 is clogged, that color Cleaning can be performed by opening only the flow path (valve) of the bent portion 64 of the tube 6 in the unit unit 10 corresponding to the nozzle 310 that ejects ink.
Thereby, the pump 220 can be reduced in size and power consumption can be reduced. In addition, the amount of wasted ink can be reduced.

Further, even when the tube valve 1 whose phase is unknown is used, each of the rotating bodies 3 of the tube valve 1 is rotated while operating the pump 220, so that the flow path (valve) of the bent portion 64 of each tube 6 is 1. By sequentially opening them one by one, the load on the pump 220 can be reduced.
Thereby, the pump 220 can be reduced in size, power consumption can be reduced, and the entire head cleaning device 200 can be reduced in size.
In this embodiment, the case where the tube valve 1 of the fourth embodiment is applied to a valve of a head cleaning device has been described. However, the tube valve 1 of another embodiment can also be applied to a valve of a head cleaning device. .

(Fifth embodiment)
Next, a fifth embodiment of the tube valve of the present invention will be described.
12 is a perspective view showing a fifth embodiment of the tube valve of the present invention, FIG. 13 is a perspective view showing a rotating body of the tube valve shown in FIG. 12, and FIG. 14 is a rotating body of the tube valve shown in FIG. FIG. In this case, FIG. 13A shows a perspective view seen from the back side of the rotating body, and FIG. 13B shows a perspective view seen from the front side of the rotating body. 14A shows a rotating body of the third unit unit from the left in FIG. 12, FIG. 14B shows a rotating body of the second unit unit from the left in FIG. 12, and FIG. FIG. 12C shows the rotating bodies of the leftmost unit unit in FIG.

Hereinafter, the tube valve 1 of the fifth embodiment will be described focusing on the differences from the above-described fourth embodiment, and description of similar matters will be omitted.
As shown in these drawings, in the tube valve 1 of the fifth embodiment, the opening / closing mechanism is a first that can selectively open or close only the flow path of a predetermined (specific) tube 6 among the tubes 6. And a second mode in which the flow paths of all the tubes 6 can be opened or closed.
That is, the configuration of the tube valve 1 of the fifth embodiment is substantially the same as that of the tube valve 1 of the fourth embodiment described above, except for the rotating body 3.

  As shown in FIG. 13, a shaft 31 having a substantially circular shape in plan view (cross section) is formed at a position corresponding to the shaft portion 53 of the motor 5 on one surface of the rotating body 3 of the unit unit 10. A recess 32 having a substantially circular shape in plan view (transverse section) is formed at a position corresponding to the shaft 31 on the other surface. The size of the recess 32 is slightly larger than that of the shaft 31 so that the shaft 31 of the other rotating body 3 is inserted therein and the other rotating body 3 can smoothly rotate with respect to the one rotating body 3. Is set.

Further, a pin 33 is formed in the vicinity of the shaft 31 on the surface of the rotating body 3 where the shaft 31 is formed, and the surface of the rotating body 3 on the side where the recessed portion 32 is formed. In the vicinity of 32, a groove 34 into which the pin 33 of another rotating body 3 is inserted is formed. The pattern of the groove 34 has an arc shape centered on the central axis of the recess 32 (axis 31) in plan view.
However, the pin 33 is not formed only on the rotating body 3 of the leftmost unit unit 10 in FIG. Moreover, the groove | channel 34 is not formed only in the rotary body 3 of the rightmost unit unit 10 in FIG.

The shaft 31 of each rotating body 3 is inserted into the recess 32 of the adjacent rotating body 3. Thereby, each rotary body 3 can rotate with respect to the adjacent rotary body 3 around the shaft 31 as a rotation axis.
Further, the shaft portion 53 of the motor 5 is inserted and fixed in the concave portion 32 of the rotating body 3 of the rightmost unit unit 10 in FIG.

  Further, the pin 33 of each rotating body 3 is inserted into the groove 34 of the adjacent rotating body 3 and can slide along the groove 34.

In addition, the formation range (angle) of the groove 34 of each rotating body 3 differs by approximately 90 degrees at the central angle.
That is, as shown in FIG. 14C, the groove 34 of the rotating body 3 of the leftmost unit unit 10 in FIG. 12 is formed at approximately 270 degrees at the central angle, as shown in FIG. In addition, the groove 34 of the rotating body 3 of the second unit unit 10 from the left in FIG. 12 is formed at a central angle by approximately 180 degrees, and as shown in FIG. The groove 34 of the rotating body 3 of the second unit unit 10 is formed by approximately 90 degrees at the central angle.

  In the tube valve 1, only the rotating body 3 of the rightmost unit unit 10 in FIG. 12 is directly driven and rotated by driving the motor 5. Then, the driving force is transmitted from the rotating body 3 of the rightmost unit unit 10 in FIG. 12 to the rotating body 3 of the third unit unit 10 from the left in FIG. 12, and the third unit unit 10 from the left in FIG. Transmission of driving force from the rotating body 3 to the rotating body 3 of the second unit unit 10 from the left in FIG. 12, from the rotating body 3 of the second unit unit 10 from the left in FIG. 12 to the leftmost unit unit in FIG. Transmission of the driving force to the ten rotating bodies 3 is performed by the pin 33 of one rotating body 3 and the groove 34 of the other rotating body 3, respectively. Therefore, the main part of the power transmission mechanism is configured by the pin 33 and the groove 34 of the rotating body 3.

  When the rotating body 3 of the rightmost unit unit 10 in FIG. 12 rotates clockwise, the pin 33 slides along the groove 34 of the rotating body 3 of the third unit unit 10 from the left in FIG. When the rotating body 3 rotates 90 degrees clockwise, the pin 33 comes into contact with one end of the groove 34 of the other (driven side) rotating body 3, and the driving force is applied from the pin 33 to the driven side rotating body 3. Is transmitted. Thereby, the rotating body 3 of the third unit unit 10 from the left in FIG. 12 also rotates clockwise. In this state, the phase difference between the rotating body 3 of the rightmost unit unit 10 in FIG. 12 and the rotating body 3 of the third unit unit 10 from the left in FIG. 12 is 90 degrees.

Further, when the rotating body 3 of the rightmost unit unit 10 in FIG. 12 rotates counterclockwise from the above state, the pin 33 is inserted into the groove 34 of the rotating body 3 of the third unit unit 10 from the left in FIG. And slides in the opposite direction. When the rotating body 3 rotates 90 degrees counterclockwise, the pin 33 comes into contact with the other end of the groove 34 of the other (driven side) rotating body 3, and the pin 33 contacts the driven side rotating body 3. Driving force is transmitted. Thereby, the rotating body 3 of the third unit unit 10 from the left in FIG. 12 also rotates counterclockwise. In this state, the rotator 3 of the rightmost unit unit 10 in FIG. 12 and the rotator 3 of the third unit unit 10 from the left in FIG. 12 have the same phase.
Accordingly, the first mode in which the flow path of the tube 6 of the rightmost unit unit 10 in FIG. 12 and the flow path of the tube 6 of the third unit unit 10 from the left in FIG. It is possible to select the second mode in which only one is opened or closed.

Hereinafter, transmission of driving force from the rotating body 3 of the third unit unit 10 from the left in FIG. 12 to the rotating body 3 of the second unit unit 10 from the left in FIG. 12, the second unit unit from the left in FIG. The transmission of the driving force from the 10 rotating bodies 3 to the rotating body 3 of the leftmost unit unit 10 in FIG. 12 is the same as described above.
For example, when the rotator 3 of the rightmost unit unit 10 in FIG. 12 rotates more than 270 degrees clockwise, the phase of the rotator 3 of each unit unit 10 is in the same direction with respect to the adjacent rotators 3. Shift by 90 degrees.

Further, when the rotator 3 of the rightmost unit unit 10 in FIG. 12 rotates 270 degrees or more counterclockwise from the above state, all the rotators 3 of each unit unit 10 have the same phase.
Thereby, the first mode in which the flow paths of the tubes 6 of all the unit units 10 are simultaneously opened and closed, and the second mode in which only the flow paths of the tubes 6 of the predetermined one or two or more units 10 are opened and closed. You can choose.

In this case, in the first mode, a state where the flow paths of the tubes 6 of all the unit units 10 are opened and a state where the flow paths of the tubes 6 of all the unit units 10 are closed can be taken.
On the other hand, in the second mode, only the flow paths of the tubes 6 of the predetermined one or two or more units 10 are opened, and only the flow paths of the tubes 6 of the predetermined one or two or more units 10 are opened. The closed state and the closed state of the flow paths of the tubes 6 of all the unit units 10 can be taken.
Moreover, according to this tube valve 1, the effect similar to 4th Embodiment mentioned above is also acquired.

(Sixth embodiment)
Next, a sixth embodiment of the tube valve of the present invention will be described.
FIG. 15 and FIG. 16 are perspective views showing a rotating body in the sixth embodiment of the tube valve of the present invention. In this case, FIG. 15A shows a perspective view seen from the back side of the rotating body, and FIG. 16B shows a perspective view seen from the front side of the rotating body.

Hereinafter, the tube valve 1 of the sixth embodiment will be described with a focus on differences from the above-described fifth embodiment, and description of similar matters will be omitted.
As shown in these drawings, in the tube valve 1 of the sixth embodiment, each rotating body 3 is configured to be set and manufactured using a common member (part) at the time of assembly. It has the characteristics.
That is, as shown in FIG. 15, the rotating body 3 includes three concave portions 35 a into which pins 33 can be mounted (inserted) in the vicinity of the shaft 31 on the surface of the rotating body 3 on which the shaft 31 is formed. , 35b and 35c are formed.

The recesses 35a, 35b and 35c are arranged in parallel along the radial direction of the rotating body 3 at a predetermined interval. Moreover, each recessed part 35a, 35b, and 35c is arrange | positioned in order of the recessed part 35c, 35b, 35a toward the outer peripheral side from the axis | shaft 31 side. As shown in FIG. 16, the pin 33 is manufactured as a separate body, and is inserted into one of the recesses 35a, 35b, and 35c and fixed.
Further, as shown in FIG. 15, three grooves 34 a and 34 b into which the pins 33 of the other rotators 3 are inserted in the vicinity of the recesses 32 on the surface of the rotator 3 on which the recesses 32 are formed. And 34c are formed.

The patterns of the grooves 34a, 34b, and 34c each have an arc shape centering on the central axis of the recess 32 (the shaft 31) in plan view, and the grooves 34a, 34b, and 34c are formed concentrically. .
Further, the formation ranges (angles) of the grooves 34a, 34b, and 34c are different from each other by about 90 at the central angle.

That is, the most central groove 34c is formed at a central angle of approximately 270 degrees, and the outer groove 34b of the groove 34c is formed at a central angle of approximately 180 degrees, and the outer groove 34a of the groove 34b. Are formed at a central angle of approximately 90 degrees.
As a result, the pins 33 mounted in the recesses 35a, 35b, and 35c of the rotating body 3 are inserted into the grooves 34a, 34b, and 34c of the adjacent rotating bodies 3, respectively.
Therefore, when the tube valve 1 of the fifth embodiment described above is used as the rotating body 3 of the rightmost unit unit 10 in FIG. 12, the pin 33 is inserted into the recess 35a of the rotating body 3 as shown in FIG. , Stick.

When the tube valve 1 of the fifth embodiment is used as the rotating body 3 of the third unit unit 10 from the left in FIG. 12, the pin 33 is inserted into the concave portion 35 b of the rotating body 3 and fixed.
When the tube valve 1 according to the fifth embodiment is used as the rotating body 3 of the second unit unit 10 from the left in FIG. 12, the pin 33 is inserted into the concave portion 35 c of the rotating body 3 and fixed.

Further, when the tube valve 1 of the fifth embodiment described above is used as the rotating body 3 of the leftmost unit unit 10 in FIG. 12, it is not necessary to insert the pin 33.
According to this tube valve 1, the same effect as the fifth embodiment described above can be obtained.
And in this tube valve 1, since each rotary body 3 can be set and manufactured using a common member (part) at the time of an assembly, respectively, a number of parts can be reduced and manufacturing cost can be reduced. be able to.

As described above, the present invention has been described based on the illustrated embodiment. However, the present invention is not limited to this, and the configuration of each unit can be replaced with any configuration having the same function. . In addition, any other component may be added to the present invention.
Further, the present invention may be a combination of any two or more configurations (features) of the above embodiments.

In the above embodiment, the main part of the opening / closing mechanism is configured by the rotating body 3 having the cam portion, the motor 5, and the electromagnetic actuator. However, the present invention is not limited thereto, and for example, the rotating body Instead of 3, a crank mechanism or the like may be used.
Moreover, in this invention, you may be comprised so that the flow path in a tube can be opened and closed in two or more places of a tube.
Moreover, the use of the tube valve of the present invention is not particularly limited, and can be applied to, for example, various devices that control fluid (liquid, gas, etc.). As a specific example, the tube valve of the present invention can be used, for example, as a valve of a device for mixing medicines, fragrances and the like in addition to the above-described head cleaning device for cleaning the printer head.

It is a perspective view which shows 1st Embodiment of the tube valve of this invention. It is a top view of the tube valve shown in FIG. It is a side view of the tube valve shown in FIG. It is a top view of the tube valve shown in FIG. It is a top view of the tube valve shown in FIG. It is a top view of the tube valve shown in FIG. It is a top view which shows 2nd Embodiment of the tube valve of this invention. It is a top view which shows 3rd Embodiment of the tube valve of this invention. It is a perspective view which shows 4th Embodiment of the tube valve of this invention. It is a figure (perspective view, top view) which shows the rotary body of the tube valve shown in FIG. It is a figure which shows typically embodiment of the head cleaning apparatus provided with the tube valve shown in FIG. It is a perspective view which shows 5th Embodiment of the tube valve of this invention. It is a perspective view which shows the rotary body of the tube valve shown in FIG. It is a top view which shows the rotary body of the tube valve shown in FIG. It is a perspective view which shows the rotary body in 6th Embodiment of the tube valve of this invention. It is a perspective view which shows the rotary body in 6th Embodiment of the tube valve of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Tube valve 2 ... Frame 3 ... Rotating body 4 ... Actuator 5 ... Motor 6 ... Tube 7 ... Guide 10 ... Tube valve unit unit 21 ... Recess 22 ... Cover 23 ... Cylindrical part 31 ... Shaft 32 ... Recess 33 ... Pin 34 34a, 34b, 34c ... grooves 35a, 35b, 35c ... concave portion 41 ... permanent magnet 42, 43 ... electromagnet 44 ... iron core 45 ... coil 46 ... winding 51 ... trunk 52 ... fixing ring 53 ... shaft 61, 62 ... End part 64 ... Bending part 71 ... Holding part 72 ... Slide part 73 ... Spring 74 ... Convex part 200 ... Head cleaning device 210 ... Receiving part 220 ... Pump 230 ... Waste liquid part 300 ... Head 310 ... Nozzle

Claims (6)

A tube having a flow path for circulating a fluid therein, the flow path can be closed by being bent, and a tube provided so as to be at least partially curved;
A rotating body having a cam portion and provided rotatably;
In the curved part of the tube, the cam part acts by the rotation of the rotating body to close the flow path by bending the tube, and to open and close the flow path by releasing the bending of the tube A tube valve comprising a mechanism. The tube valve according to claim 1 , further comprising guide means for restricting a bending direction of the tube. A movable body that is movably provided and includes a support portion that supports the tube in the vicinity of a portion where the tube is bent and a contact portion that contacts the cam portion of the rotating body;
Wherein by rotation of the rotary member, the cam portion presses the contact portion of the movable body, the tube valve according to claim 1, wherein the moving body is bent moves the tube. The tube valve according to any one of claims 1 to 3, wherein the tube is restored from a bent state by its own restoring force and the flow path is opened. The tube valve according to claim 4 , further comprising a restoration assisting unit for assisting restoration of the tube. A head cleaning device for cleaning a head of a printer,
When cleaning the head, a receiving portion that is detachably attached to the head and receives ink discharged from the nozzle of the head;
A pump for sucking ink from the nozzles of the head through the receiving portion;
A head cleaning device comprising: the tube valve according to claim 1 , which is provided in a flow path between the pump and the receiving portion.

Images