JPH0438590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an inkjet recording device, and more particularly to an inkjet recording device in which an ink storage container portion for supplying ink has been improved.

Prior Art Inkjet recording devices have excellent features such as being fast and quiet, being able to print on plain paper, and being able to easily print in color.

However, since liquid is used as the recording medium, if the ink is not handled properly, the ink can contaminate the inside and outside of the apparatus, including the operator.

Therefore, in order to prevent such drawbacks, an ink bag made of a flexible material that is flexible enough to respond to atmospheric pressure is used as an ink storage container, and this ink bag is housed in a rigid container. Therefore, a type that is easy to handle has been adopted.

Such an ink bag has a sealing part made of an elastic material that can be penetrated by a needle or the like, a hollow needle is provided in the ink supply section of the device, and the hollow needle is made of the elastic material. By penetrating the sealing portion, an ink supply path from the ink bag is configured.

A conventional example of such a structure is shown in FIG. 1st
In the figure, the reference numeral 1 indicates an inkjet nozzle, which is made of glass or the like.

A piezo element 2 is wound around the outer peripheral surface of the tip of the inkjet nozzle 1, and by applying a pulse signal that is a printing command to this element, the piezo element 2 is bent and vibrated, and the inkjet nozzle Printing is performed by causing a volume change with respect to 1 and ejecting ink droplets from the tip of the inkjet nozzle 1 toward the recording paper 3.

A platen 4 which also serves as a paper feed roller is disposed opposite the inkjet nozzle 1, and the recording paper 3 is guided between the platen 4 and pinch rollers 5 and 6.

On the other hand, the inkjet nozzle 1 is provided on a support member 7, and the support member 7 is fixed on a carriage 8. . This carriage 8 moves along guide bars 9, 9 in the main scanning direction.

On the other hand, the reference numeral 10 indicates an ink bag, the inside of which is filled with ink 11.

The ink bag 10 is formed into a bag shape by using a single sheet or a composite sheet of polyethylene, vinylidene chloride, aluminum foil, or the like.

One end of a tube 12 is fixed to the distal end of the ink bag 10, and the other end of the tube 12 is fitted and fixed to a sealing part 13 made of an elastic member.

The sealing part 13 is made of a material with excellent chemical resistance and flexibility, such as silicone rubber or butyl rubber, and the ink outlet hole 14 formed in the sealing part 13 is always closed. This prevents the ink 11 from flowing out from the ink bag 10.

On the other hand, what is indicated by the reference numeral 15 is a hollow needle, one end of which is fixed to the fixing member 16.
6 is fixed on the bottom plate 17.

A flexible tube 1 is connected between one end of the hollow needle 15 and the inkjet nozzle 1.
8.

By the way, the ink bag 10 is housed in a case 19, and the sealing part 13 is fixed to the tip of the case 19. By the way, a lid 21 that can be opened and closed is rotatably attached to the front side of the cover 20 of the inkjet recording apparatus via a shaft 22.

Moreover, what is indicated by the reference numeral 21a is a partition plate that is provided in the device housing and regulates the upper side of the accommodation space of the case 19.

By the way, when the above structure is adopted, when the case 19 is attached, the lid 21
, the user manually inserts the case 19 into the interior with the sealing part 13 on the tip side, and inserts the hollow needle 15 into the case 19 by hand.
The tube must be inserted into the sealing portion 13 to establish communication with the tube 12 and supply ink.

However, since there is only a storage space for the case 19 on the device side, and the installation is only done by hand, the hollow needle 15 may not be properly inserted when the case 19 is pushed in, depending on individual differences between users. It is unknown to what extent it penetrates into the sealing part 13.

Therefore, some users stop inserting the case 19 immediately after feeling the resistance of the hollow needle 15 being inserted into the hollow needle, and the hollow needle 15 does not reach the tube 12 and ink is not supplied.

Furthermore, if the case 19 is not pushed in in a straight line and is pushed in crookedly, the hollow needle 15 will not reach the ink outlet hole 14 of the sealing part 13, and in this case as well, it will be impossible to draw out the ink. Become.

In this way, case 1
9 is inserted differently, and in the worst case, it will not be possible to supply ink at all.

Furthermore, the only way to attach the case 19 is to open the lid 21 and install it horizontally, and it is completely impossible to attach the case 19 from vertically upward as shown by arrow A in FIG.

Purpose The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and it is possible to realize a complete ink supply state without changing the mounting stroke of the case depending on individual differences, and also to be able to realize a complete ink supply state from the vertical direction. The object of the present invention is to provide an inkjet recording device that can also be equipped with a case.

Embodiments Hereinafter, details of the present invention will be explained based on embodiments shown in the drawings.

First Embodiment FIG. 2 explains one embodiment of the present invention.
In the figure, the same or corresponding parts as those in FIG.

In FIG. 2, the reference numeral 23 indicates a slide member, and this slide member 23 has a U-shaped cross section and has left and right sides 23a, 23a.
A stopper 23b is formed on the front edge to prevent the case 19 from coming off backward.

Further, a pair of left and right guide plates 24 and 25 are protruded on the bottom plate 17 of the device, and these guide plates 24,
25, the slide member 23 is guided with the case 19 housed therein.

By the way, what is indicated by the reference numeral 26 is a connecting lever formed in an arc shape, one end of which is fixed to approximately the center of the side surface of the lid 21 by a pin 21b, and the other end is fixed to the side plate 23a by a pin 23c. It is rotatably mounted.

Next, the operation of this embodiment configured as described above will be explained with reference to FIGS. 3a and 3b.

Figure 3a shows the case 19 being installed.
At this time, the lid 21 is open and the slide member 2
3 is pulled out to the front.

In this state, attach the case 19 into the slide member 23 with the sealing part 13 at the tip, push it slightly into the device with your finger, and when it reaches a position where you can close the lid 21, release your hand and close the lid 21. .

Then, as shown in FIG. 3b, the slide member 23
is pressed by the lid 21, and the hollow needle 15 is pressed into the sealing part 1.
3 It starts to be inserted inside.

When the lid 21 is completely closed, the connecting lever 26 is in a substantially horizontal state, and the slide member 23 is completely pushed into the insertion range, so that the hollow needle 19 is inserted into the tube 12 on the ink bag 11 side.
It will be firmly inserted inside.

In this way, the closing operation of the lid 21 does not cause individual differences, and the ink can be reliably supplied.

Second Embodiment FIGS. 4a and 4b illustrate another embodiment of the present invention. In this embodiment, a frame body is formed on the bottom plate 17 as a substantially U-shaped frame when viewed from above. A slide frame 27 is provided, and the hollow needle 1 is mounted on this slide frame 27.
5 fixed members 16 are fixed.

On the other hand, a crank lever 29 formed in a substantially dogleg shape is rotatably supported via a pin 28 on the side walls defining the left and right sides of the space into which the case 19 is inserted.

One end of the crank lever 29 is rotatably connected to the inner end of the link lever 30 via a pin 29a.

Also, the other end of the crank lever 29 has a pin 29b.
This pin 29b is inserted into a long hole 2 formed vertically along the side wall of the slide frame 27.
It is slidably fitted into 7a.

The other end of the link lever 30 is rotatably connected to the lid 21 via a pin 30a.

Next, the operation of this embodiment configured as above will be explained.

When the case 19 is attached, the lid 21 is opened. When the lid 21 is opened, the link lever 30 moves the lid 2
Since the crank lever 29 is pulled to the 1 side, the crank lever 29 is rotated counterclockwise in the figure around the pin 28.
As a result, the pin 29b moves up in the elongated hole 27a, the slide frame 27 is moved in a direction away from the lid 21, and the hollow needle 15 is also moved together.

In this state, insert the case 19 into the housing part and
When the lid 21 is closed as shown in Figure b, the link lever 30 is pushed, so the crank lever 2
9 is rotated clockwise around pin 28,
The pin 29b moves below the elongated hole 27a.

With this operation, the slide frame 27 is pulled toward the lid 21, and as a result, the hollow needle 15 pierces into the sealing portion 13 and communicates with the ink bag side.

Even if such a structure is adopted, a reliable ink supply state can be realized by the closing operation of the lid 21 without causing individual differences.

Third Embodiment FIGS. 5a and 5b illustrate still another embodiment of the present invention. In this embodiment, the cover 20 is opened and closed at a position corresponding to the part to which the case 19 is attached. A flexible lid 31 is provided.

This lid 31 is rotatably supported by a shaft 32 on the cover 20 side. The lower end portion of the lid 31 is formed in an arc shape, and a gear 31a is formed in this portion.

A gear 33 that meshes with this gear 31a is rotatably supported on the device side, and this gear 33 meshes with a rack gear 34a formed on the upper surface of a slide member 34 to which the hollow needle 15 is fixed.

When such a structure is adopted, the case 19 can be vertically attached to and detached from above by opening the lid 31 with respect to the housing portion. The rear end of the case 19 is regulated by a side wall 20a, and the front end is regulated by a partition wall 20b.

The hollow needle 15 is inserted into the partition wall 20b and the through hole 2
0c is formed.

Next, the operation of this embodiment configured as above will be explained.

When the case 19 is attached, the lid 31 is opened as shown in FIG. 5a.

In this state, as the lid 31 is rotated clockwise in FIG. 5a, the gear 33 is rotated counterclockwise, and the slide member 34 is moved away from the partition wall 20b.

Therefore, the hollow needle 15 is located away from the partition wall 20b. Therefore, the case 19 can be attached and detached freely.

When the lid 31 is closed after the case 19 is installed, the gear 33 is rotated clockwise, so the slide member 34 is rotated through the rack gear 34a.
moves to the case 19 side, and the hollow needle 15 moves to the through hole 20.
The tube 1 is inserted into the sealing part 13 through c.
2, and an ink supply state is realized.

Fourth Embodiment FIGS. 6a and 6b illustrate still another embodiment of the present invention. In this embodiment, the case 19 is removably fitted into the slide frame 35.

The slide frame 35 has a side wall 35a in contact with the tip thereof, and a rack gear 35b is formed at the upper edge of the side wall 35a, and this rack gear 35b is connected to a gear 31a formed at the lower end of the lid 31.
It meshes with.

Since this embodiment is configured as described above,
When the lid 31 is opened, the slide frame 35 is moved away from the hollow needle 15 via the rack gear 35b as shown in FIG. 6a.

In this state, the case 19 can be freely attached and detached.

On the other hand, when the lid 31 is closed, the rack gear 3
5b, the slide frame 35 moves toward the hollow needle 15, and the hollow needle 15 is inserted into the sealing portion 13 and fitted into the tube 12 of the ink bag 10, thereby achieving an ink supply state.

Even if such a structure is adopted, simply by closing the lid 31, the ink supply state can be reliably realized, and the case 19 can be attached and detached in the vertical direction.

Effects As is clear from the above description, according to the present invention, complete penetration of the sealing portion of the hollow needle can be achieved by closing the lid of the part that accommodates the case in which the ink bag is housed. Therefore, there is no installation error due to individual differences, and the ink supply state can be reliably realized.

Further, when the lid is provided on the upper side, the case containing the ink bag can be attached and detached from the vertical direction.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional side view of the main parts to explain the conventional structure, Figs. 2 and 3 are illustrative of the first embodiment of the present invention, Fig. 2 is a perspective view, and Figs. 3 a and b.
4A and 4B are side views illustrating the operation of the second embodiment of the present invention, and 5A and 5B are side views illustrating the third embodiment of the present invention. Figures 6a and 6b are side views illustrating a fourth embodiment of the present invention. 10...ink bag, 11...ink, 12...
Tube, 13... Sealing part, 15... Hollow needle, 1
8...Flexible tube, 19...Case,
23...Slide member, 26...Connection lever, 2
7, 35...Slide frame, 29...Crank lever, 30...Link lever.

Claims (1)

[Claims] 1. An inkjet recording device comprising a hollow needle connected to the inkjet nozzle side and a case containing an ink bag having a sealing portion made of an elastic member into which the hollow needle is inserted. In the device, a case storage section is provided on the device main body side, and a lid that can be opened and closed is provided facing the storage section, and the hollow needle and the sealing section are moved relative to each other in conjunction with the closing operation of the lid. An inkjet recording device characterized in that the hollow needle and the sealing portion are arranged so that they are close to each other and are relatively separated from each other in conjunction with an opening operation. 2. The inkjet recording device according to claim 1, characterized in that a hollow needle is provided on the side of the member that moves in conjunction with the opening and closing operations of the lid. 3. The inkjet recording device according to claim 1, wherein a case containing an ink bag is attached to a member that moves in conjunction with opening and closing operations of the lid.