JPS6311343A - Ink supply apparatus - Google Patents

Abstract

PURPOSE:To facilitate the mounting of the title apparatus, to prevent the leakage of ink and to obtain a certain ink communication state, by mounting a supply pipe having a leading end part breaking a seal film by its own revolution and a support member supporting the supply pipe with respect to an ink receiving part in a freely revolvable manner. CONSTITUTION:A back case 6 containing an ink receiving bag body 5 and a groove 4-2 for guiding a support member 3-1 is provided to the end surface of the cover 4 which blocks the opening part of the back case 6. The opening surface of an ink supply port 4-1 making the insertion and revolution of a supply pipe 8 free on the bag body 5 is set so as to have inclination with respect to the insert direction of the supply pipe 8 and a seal film is mounted to the opening surface so as to close the same. The leading end part of the ink supply pipe 8 is formed to the opening surface opposed to the seal film 11 and, since the seal film is broken when said leading end part is rotated by 90 deg., ink can be supplied to an ink emitting orifice 2-1 through the ink supply pipe 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ink supply device, and more particularly to an ink supply device suitable for application to an inkjet printer that uses ink as a recording material.

[Prior Art] Conventional inkjet printers include a head that ejects ink onto a recording medium and an ink supply device that serves as an ink supply source for the head, which are separately provided at separate locations, with a gap between them. Some are connected via an ink supply system including a communication member such as a supply pipe.

However, such inkjet printers generally require long supply pipes, which not only creates complications in piping, but also tends to cause ink vapor deposition and air infiltration.

In contrast, the present applicant has disclosed in Japanese Patent Application No. 60-91236 an ink sheller printer in which a head and an ink supply source are formed as an integral member. This patent application No. 60-91236 not only eliminates the above-mentioned problems such as ink evaporation and air inclusion, but also
Although it has the advantage that the ink supply system including the head and ink supply source is easy to handle because no piping is required, the ink consumption increases and the amount of ink remaining in the ink supply source is small or empty. In this case, the head, which is more expensive than the members constituting the ink supply source, such as the ink storage bag, is also replaced at the same time, which poses a cost problem.

[Problems to be Solved by the Invention] Therefore, the ink supply source can be attached to the head so that an integrated assembly is formed in the attached state, and only the ink supply source is connected when the ink is consumed. I can think of making it replaceable. However, in such cases, when connecting the head and the ink supply source, it is necessary to ensure ease of installation, prevention of ink leakage during installation or replacement, and reliable ink communication in the installed state. . These are various points that need to be ensured even when the ink supply system and the ink supply source are connected in a printer in which the ink supply source and the head are separately provided at separate positions.

In view of the above-mentioned problems, the invention of the tree is to provide a system that is easy to install on the head or the ink supply system leading to the head, does not cause ink leakage during installation or replacement, and ensures reliable ink communication when installed. An object of the present invention is to provide an ink supply device that can obtain the status.

Another object of the invention is to provide an ink supply device that can reduce the running cost of an inkjet printer.

[Means for Solving the Problems] An ink storage portion having a supply port for supplying ink and sealing the supply port with a sealing film, and a supply pipe inserted into the supply port, the supply pipe being The present invention is characterized in that it includes a supply pipe having a tip portion that ruptures the sealing film when rotated, and a support member that rotatably supports the supply pipe with respect to the ink storage portion.

[Function 1] According to the present invention, when an ink supply tube is inserted into an ink supply port and rotated, its tip portion ruptures a sealing membrane in accordance with the rotation.

Further, since the support member rotatably supports the supply pipe, even after the sealing film ruptures, the ink supply pipe does not come off the supply port and the ink does not leak.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the configuration of an embodiment of the present invention.

2 is a recording head plate having an ink discharge port 2-1. Reference numeral 3 denotes a front case to which the recording head plate 2 is attached, and when the front case 3 is attached to a cover 4, which will be described later, a support member 3-1 (shown in the second figure) that supports the rotation of the front case 3 and an ink ejecting member are attached. It has an ink supply pipe 8 that communicates with the outlet 2-1.

An O-ring 7 is provided on the outer surface of the ink supply pipe 8, and when the supply pipe 8 is inserted into the ink supply port 4-1 provided in the cover 4, the ink supply pipe 8 is connected to the outside from the ink supply port 4-1. Prevent ink leakage.

Reference numeral 4 denotes a cover that closes the openings of the bag 5 that stores ink and the back case 6 that stores the bag 5. A groove 4-2 for guiding the support member 3-1 is provided in the end face of the cover 4. Further, the opening surface of the ink supply port 4 - 1 on the bag body 5 side, through which the supply tube 8 can be freely inserted and rotated, is set to be inclined with respect to the insertion direction of the supply tube 8 . A seal fJ@11 is attached to the opening surface to seal the ink until the supply pipe 8 is attached so as to close this opening surface.

The tip of the ink supply tube 8 has an opening surface that faces the sealing film 11 at a predetermined distance as shown in FIG. 1 when the ink supply tube is inserted into the ink supply port 4-1. It is formed.

FIG. 2 shows the state of ink in the embodiment of the present invention.

In FIG. 2, the front case 3 is in a state rotated by 90 degrees from the state shown in FIG. When the tip of the ink supply tube 8 rotates 90 degrees from the state shown in the first figure, this tip comes into contact with the sealing film 11 and breaks the seal, so that the ink contained in the bag body 5 is transferred to the supply tube 8. The ink can be supplied to the ink ejection port 2-1 through the ink. Furthermore, when the front case 3 is installed, the support member 3-1 rotates along the groove 4-2, so the rotation is supported, and after the front case 3 is installed, the support member 3-1 prevents the front case 3 from being attached or detached. be able to.

3 to 5 show the mounting operation of the front case 3 in the embodiment of the present invention.

With the supporting member 3-1 turned sideways as shown in FIG.
Insert into 1. Next, when the front case 3 is rotated so that the support member 3-1 follows the groove 4-2 until the support member 3-1 faces upward as shown in FIG. 5, the sealing film 11 is broken and the ink is supplied. becomes possible.

Although the embodiment of the present invention shows an example in which the front case 3 is rotated by 90 degrees, it may be rotated by a desired angle such as 180' or 360 degrees. Further, the shape of the tip of the supply pipe 8 is not limited to the blade shape, but may be a key shape as shown in FIG. 6 or a pointed shape as shown in FIG. 7.

As explained above, according to the present invention, the sealing film 11 is cut out by the rotation of the supply pipe 8, so the shape of the cutout is more beautiful than that obtained by simply inserting the supply pipe, and the cutout area is also made uniform. The amount of ink supplied also becomes uniform. Further, since the front case 3 is securely attached even during ink supply, there is no fear of ink leakage due to attachment and detachment of the front case 3.

[Effects of the Invention] As described above, according to the present invention, it is easy to install the head or the ink supply system leading to the head, and
It is possible to realize an ink supply device that does not cause ink leakage during installation or replacement, and can ensure reliable ink communication when installed.

Furthermore, when the present invention is directly coupled to a head, there is no need to replace the head, so the running cost of the inkjet printer can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the configuration of the embodiment of the present invention, Fig. 2 is a side view showing the ink supply state in the embodiment of the invention, and Figs. 3 to 5 are the mounting operation in the embodiment of the invention. FIG. 6(A) is a side view showing an example of the tip shape of the supply pipe 8 in the embodiment of the present invention; FIG. 6(B) is a front view of FIG. 6(A); FIG. 7(A) is a side view showing an example of the tip shape of the supply pipe 8 in the embodiment of the present invention, and FIG. 7(B) is a front view of FIG. 6. 2... Recording head l' plate, 2-1... Ink discharge port, 3... Front plate, 3-1... Support member, 4... Cover, 4-1... Ink supply Mouth, 4-2...Groove, 5...Bag body, 6...Back case, 8...Ink supply pipe 11...Sealing film. ” (Sanshi Akihiro) at night 'JiL Kanshinga's striped dancing tun map No. 3
Figure 4: A total of 111 vines, 8 canes, and 1 f. 8 voluptuous valley pipes and 1 female thirst
Figure 7 of Inutsu Ichizun/Takuji Meimeidan = ``Continuation 1i T1 Yosho (Method) % formula % 2, Name of the invention Ink supply device 3, Relationship with the person making the amendment Patent application Person (ioo) Canon Co., Ltd. 4, Agent address: 3rd floor, Seiko Building 6, 5-1-31 Akasaka, Minato-ku, Tokyo (03) 588-1201 (Representative) +1-
1 5. Supplementary IF Order [Attachment 1 September 311, 1985 (Delivery 11 September 30, 1986) 6. Full text of the subject specification of Supplement 1F and all drawings 7, Supplement 1] and an engraving of the drawing plans (procedural amendments dated October 23, 1986)

Claims (1)

[Scope of Claims] An ink storage portion having a supply port for supplying ink, the supply port being sealed with a sealing film, and a supply pipe inserted into the supply port, the supply pipe being rotated. An ink supply comprising: a supply pipe having a tip that ruptures the sealing film by moving the supply pipe; and a support member rotatably supporting the supply pipe with respect to the ink storage section. Device.