JPS60154274A - Toner cartridge of developing device for copying machine - Google Patents

Abstract

PURPOSE:To prevent toner from scattering out of a machine during the replacement of a cartridge by fixing an external cylinder to the cylindrical guide of a toner supplementing device without reference to the rotation of the internal cylinder when the cartridge is inserted. CONSTITUTION:The principal part of the toner cartridge 13 consists of the external cylinder 15 which has an opening 14 for toner discharging lengthwise and the internal cylinder 17 which is fitted rotatably in the external cylinder 15 and has an opening 16 aligned to said opening part 14 lengthwise. The opening part 16 of the internal cylinder 17 is formed to at least the same and same size with the opening 14 of the external cylinder 15, and normally positioned in the opposite direction in which its position is not coincident with that of the opening 14. Further, a knob for rotating the cylinder 17 in the external cylinder 15 is formed at one end of the internal cylinder 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a toner cartridge that is replaceably inserted into a toner supply device for a developing machine in an electronic copying machine.

[Prior art]

As shown in FIG. 1, a conventional toner cartridge of this type has a toner supply device ( In this case, as shown in Fig. 2, the conventional cartridge of this type has a toner (4).
A square toner cartridge (7) with a seal (6) attached to the opening of the rectangular box-shaped cartridge body (5) that houses the toner cartridge (7).
), as shown in FIG. 8, an opening (9) for toner discharge is formed in the longitudinal direction of the cylindrical cartridge body (8) that accommodates the toner (4), and this opening (9) is sealed ( 1 [
A cylindrical toner cartridge aυ was used.

However, in the former, that is, the square toner cartridge (7), the toner hopper (
8a) is inserted along the upper guide (8b) of the cartridge body (5). The seal (6) is peeled off from the cartridge (5a), and the toner (4) in the cartridge body (5) is released into the opening (5a).
) to the toner roller/< (3B) to the developing machine (2)
(See Figures 1, 4, and 5). However, since toner that was in contact with the seal (6) is attached to one side of the seal (6), the seal (6)
When the toner (4) was pulled out of the machine, there was a risk that the toner (4) would be scattered outside the machine together with the seal (6). Furthermore, when the toner cartridge (7) is replaced, clothes and the human body are often contaminated by the toner (4) remaining in the empty toner cartridge.

On the other hand, the latter, that is, the cylindrical toner cartridge (11)
In this case, the seal (10
), there is a risk of the toner (4) scattering when peeling off the toner cartridge (11).
After inserting J into the guide 0, insert the cartridge body (8
) by rotating the knob (8a) provided at the end of the cartridge body (8), the opening (9) of the cartridge body (8) is directed to the lower surface C2, and the toner (4) in the cartridge body (8) is transferred to the toner hopper (8a). ), but (
(See Figures 6 and 7), when replacing an empty toner cartridge, the toner (4) that has suddenly adhered to the guide α adheres to the outer surface of the cartridge body (8).
There was a problem that clothes and the human body were contaminated by this.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to prevent toner from scattering outside the machine when inserting a toner cartridge or replacing an empty toner cartridge, and to prevent toner from scattering on clothes or the human body. An object of the present invention is to provide a toner cartridge for a developing machine for a copying machine, which is characterized by being able to prevent contamination.

[Structure of the invention]

That is, the gist of the present invention is to provide a toner cartridge that is replaceably inserted into a toner supply device for a developing machine in an electronic copying machine, which comprises an external cylinder having an opening for discharging toner in its longitudinal direction; , inside this external cylinder (
and an inner cylinder for toner storage, which is fitted so as to be rotatable twice and has an opening at least the same size as the width of the opening in the longitudinal direction, and when inserted into the toner supply device, the outer cylinder is inserted into the inner cylinder. It is fixed to the cylindrical guide of the toner supply device without following the rotation of the toner cartridge, and the openings of the inner and outer cylinders are placed in mismatched positions when inserting a toner cartridge or replacing an empty toner cartridge.
From 2, it prevents toner from scattering outside the machine (2,
The present invention relates to a toner cartridge for a developing machine for a copying machine, which is characterized by preventing toner from contaminating clothes and the human body.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 8 is a perspective view showing a part of the toner cartridge of the present invention in cross section. The main part is constituted by an inner cylinder α5) which houses the toner (4), which is rotatably fitted in the outer cylinder α5), and has an opening 0e in the longitudinal direction that can match the opening Q4). ing. In this case, the inner cylinder (one opening + II) has at least the same size as the width of the outer cylinder (two openings), and is usually located in the opposite direction that does not coincide with the position of the opening. Further, a knob (181) is formed at one end of the inner cylinder αη for rotating the inner cylinder aη with respect to the outer cylinder α9.

Note that when applying pressure when filling the toner (4) into the inner cylinder αη, it is desirable to attach a seal (not shown) to the opening (opening) of the outer cylinder (151).

Further, after the external cylinder Q51 is guided and inserted into the cylindrical guide 0 above the toner hopper (8&) of the toner supply device (3), the cylindrical guide ( In this case, as a means for fixing the outer cylinder α9 and the cylindrical guide Q2, for example, the outer surface of the outer cylinder αω and the cylindrical guide a
The insertion side end of the outer cylinder a9 and the end of the cylindrical guide a2 form a concave part and a convex part (A) that engage with each other. Any structure is conceivable, such as one in which the concave portion and the convex portion (a) are sometimes engaged to prevent rotation of the external cylinder Q51 (see FIG. 9).

In order to insert the toner cartridge of the present invention configured as described above into the toner supply device (3), as shown in FIG.
7) opening (161 in reverse combination state (2) and
After inserting the opening (141) of the external cylinder a9 downward into the cylinder guide (121), open the internal cylinder aη by rotating the internal cylinder (1?) with one knob (old). 161 facing downward and aligning with the opening +14J of the outer cylinder 0ω (see Fig. 11).
) falls into the toner hopper (8a), and the developing machine (2
).

Ru.

Next, when replacing the empty toner cartridge,
As shown in Figure 2 (2. Rotate the inner cylinder with the nip (181) as described above, and place the toner cartridge in a position where the openings of the outer cylinder and the inner cylinder surface (αe) do not match. Just pull it out from the guide 02, and insert a new toner cartridge twice (as described above).

Therefore, when inserting the toner cartridge,
The stored toner (4) does not leak to the outside, and even when replacing an empty toner cartridge, the remaining toner (4) in the cartridge does not leak to the outside, so toner does not cause damage to clothes or the human body. Contamination can be prevented.

[Effects of the Invention] As described above, according to the toner cartridge of the present invention, the toner cartridge includes an external cylinder having an opening in the longitudinal direction, and a toner cartridge rotatably fitted into the external cylinder, and having an opening in the longitudinal direction. It has a double structure with an inner cylinder having a matching opening in the longitudinal direction, and when inserted into the toner supply device,
Because the outer cylinder does not follow the rotation of the inner cylinder (= cylinder guide of the toner supply device) and is fixed, toner may scatter outside the machine when inserting a toner cartridge or replacing an empty toner cartridge. It has remarkable utility value because it has excellent effects such as preventing toner from contaminating the clothes and human body of workers.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an example of a developing machine of an electronic copying machine;
FIG. 8 is a perspective view of a conventional cylindrical toner cartridge; FIGS. 4 and 5 are sectional views showing the conventional square toner cartridge in an inserted state; FIG. 7 and 7 are sectional views of main parts showing the inserted state of a conventional cylindrical toner cartridge, No. 8- is a perspective view showing a part of the toner cartridge of the present invention in cross section, and No. 9
The figure is an exploded perspective view showing an example of the retaining state of the outer cylinder upper cylindrical guide in the present invention, FIGS. 10 and 11 are sectional views showing the procedure for inserting the toner cartridge, and FIG. 12 is an empty toner cartridge. FIG. 3 is a cross-sectional view of the state before replacement. Description of symbols (2)...Developer (3)...Toner supply device (B&)...Toner hopper (4)
...Toner (12...Cylindrical guide 0ω
......Toner discharge opening......External cylinder Ql...Opening Qη...Inner cylinder Q
l...Knob αω...Engagement recess (A)
... Engaging protrusion patent applicant Fuji Xerox Co., Ltd. agent Tomohiro Donakamura, patent attorney Katsuo Naruse) 1ζQA- "ψ

Claims (1)

[Claims] Replaceable toner supply device for developing machine in electronic copying machine , an inner cylinder for toner storage having an opening in the longitudinal direction at least the same size as the width of the toner discharge opening, and when inserted into the toner supply device, the outer cylinder is rotated by the rotation of the inner cylinder. A toner cartridge for a developing machine for a copying machine, which is fixed to a cylindrical guide of a toner supply device without following the toner cartridge.