JPS60233677A - Toner supplying device - Google Patents

Abstract

PURPOSE:To prevent securely staining in a machine, etc., due to a toner leak by sealing the part between the toner supply port of a toner container and a conveying member with a sealing member when the toner container is fitted to the toner supplying device and toner is supplied. CONSTITUTION:The device consists of the conveying member 10 which conveys toner 9 from the toner container 7 to a development container 8 and the sealing member 11 which prevents toner from leaking from the container 7 during toner conveyance. Then, a seal 12 stuck on the toner supply port 13 of the container 7 is peeled off, an auger 15 is inserted into the supply port 13 along a toner receiver 17, and the container 7 is attached to the sealing member 11. At this time, the opening edge part of the supply port 13 is fitted tightly around a contact part 18 to seal the opening part of the supply port 13 with the sealing part 19 of a base part 16 facing it. Then, the container 7 is inverted and held fixedly in a latch mechanism manually, and the auger 15 is rotated to convey and supply the toner 9 in the container 7 into the development container 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a toner supply device for a copying machine that supplies toner by attaching a toner container filled with toner. The present invention relates to a toner supply device that can prevent the interior of the machine from being soiled due to toner scattering from the toner supply port when toner is supplied.

[Prior art]

Conventionally, various types of toner supply devices have been proposed in which a toner container filled with toner is attached to a main body of the toner supply device to supply toner.

For example, as shown in FIG.
) from the toner supply port (1a) to this toner supply port (1a
) Peel off the seal (2) that was blocking the toner supply device (3), insert it into the toner supply device (3), rotate it, and install it to supply toner. There is a known type in which toner is supplied by peeling off the seal (5) from the toner supply port (4a) of the toner container (4), turning it upside down, and attaching it to the toner supply device (6). ing.

However, the former type has a toner container fi
When attaching the + to the accommodating part (8a) of the toner supply device (3) and supplying toner, the light and fine toner in the toner container fII is slightly removed between the accommodating part (8a) and the toner container (1). This has become a problem as it can leak to the outside through gaps and stain the outside.

Furthermore, in the latter type, the toner supply port (4a) of the toner container (4) is opened, and the toner container (4) is turned half a turn before being attached to the toner supply device (6). If this work is not done carefully, the toner in the toner container (4) may drip out from the toner supply port (pith) and stain the outside, making this work difficult for inexperienced operators. It is.

[Purpose of the invention]

The present invention aims to eliminate the problems described in 1. in the conventional toner supply device of a copying machine, and more specifically, when a toner container is attached to the toner supply device to supply toner. Another object of the present invention is to provide a toner supply device in which the toner in a toner container does not leak to the outside from a toner supply port and contaminate the inside of the machine.

[Structure of the invention]

That is, the present invention provides a toner supply device for a copying machine that has a toner supply port sealed with a seal or the like and supplies toner from a toner container filled with toner to a developer container. The toner container is equipped with a conveyance member that is inserted into the toner supply port, and a sealing member that seals between the conveyance member and the toner supply port, and the toner container is attached to the toner supply device, and the toner container is When the toner in the toner container is extracted to the outside and transported into the developer container by the inserted transport member, the sealing member seals the space between the toner supply port of the toner container and the transport member, and the toner is removed. This reliably prevents contamination of the inside of the machine due to toner leakage from the supply port.

〔Example〕

The present invention will be described below based on embodiments shown in the accompanying drawings.

8 and 4 show a toner supply device for a copying machine to which the present invention is applied, and this toner supply device includes:
The toner (9) is transferred from the toner container (7) into the developer container (8).
), and a contact member 0 that prevents toner from leaking from the toner container (7) during toner transportation.
1).

The toner container (7) is made of cardboard or the like and is shaped like a box, and the toner (9) is filled inside the toner container (7). Additionally, on the upper side of the container (7), there is a toner supply port (opening closed with a seal (1) when not in use).
13) is provided. Then, the above toner container (7
) to the toner supply device, be sure to attach the above seal (1) to the toner supply device.
21 to open the toner supply port (13) and attach it to this toner supply device. Also, when the toner (9) in the toner container (7) is empty, this toner container (7) can be removed and disposed of outside the machine.

The conveying member (10) is inserted into the toner supply port (131) of the toner container (7), and the toner container (7)
The toner (8) inside is extracted to the outside and conveyed into the developer container (8). In this embodiment, the shaft (14)
The auger Q51 has a spiral rotor blade that rotates around 1, and conveys toner by the rotational force of the rotor blade, the toner supply port 03 of the toner container (7), and the developer container (
Base part 06) that communicates with the supply port (8a) of 8)
and a toner receiver (1η) which is attached to the outside of the auger (15) along the shaft (141) and is rotatable with respect to the base (16) in order to assist the conveyance of the toner (8) by the auger (15). The base end of the shaft (1Φ) is connected to a drive source such as a motor (not shown).

By the way, the toner receiver (1η) of the conveying member (10) also has a function as a guide member for guiding the auger (15) when it is inserted into the toner container (7), and in this embodiment, Although it is configured to rotate around an axis (141), the present invention is not particularly limited thereto.

The sealing member (Ill) is a member that seals between the transport member 00 and the toner supply port (13) to prevent toner from leaking, and in this embodiment, the transport member 00
) also serves as the sealing member (111).In other words, the sealing member 011 has a contact portion that is in close contact with the opening edge of the toner supply port (13) on the base end side of the toner receiver (1η), and a contact portion that is in close contact with the opening edge of the toner supply port (13). The end face (
16a), and a sealing part (19) for sealing the opening of the toner supply port 03) from the outside. Then, while the sealing part (191) seals the toner supply port (13) from the outside, the close contact part (181) seals the toner supply port (13) from the outside.
) A retaining groove (2) is formed at the opening edge of the toner container (7) so that the toner container (7) can rotate integrally with the toner container (7). In addition, the base end side close contact portion (181) of the toner receiver 0η engages with the retaining groove 11, and when the toner receiver 0η rotates, the base end 06
A retaining protrusion ■υ is provided which rotates while slidingly contacting the end face α6a) of the sealing portion (1g).

Note that the sealing member (10) is not limited to the one used in this embodiment, and may be of various types, such as one that is provided integrally with the opening of the toner supply port of the toner container.

Further, in this embodiment, the toner supply device is of a type in which the main body of the toner container (7) is manually rotated and held and fixed at a predetermined position by a launch mechanism (not shown). For example, the rotation of the toner container (7) may be performed automatically. In addition to this, for example, it is also possible to adopt a configuration in which the toner container is not rotated but is connected to the toner supply device in an inverted state with the toner supply port located at the bottom. That is, the toner container is directly connected and fixed to the sealing member without removing the seal of the toner supply port, the opening edge of the toner supply port is sealed by the sealing member, and then the toner supply port is opened in this sealed state. The conveying member may be inserted into the toner container by breaking through the seal.

Therefore, the toner supply device of this embodiment includes a toner container (7).
When installing the toner supply port (13), first remove the sticker (12) affixed to the toner supply port (13) of the toner container (7), and insert the auger (
Attach the toner container (7) to the sealing member (11) by inserting the toner container (15) into the sealing member (11), and fit the opening edge of the toner supply port (13) into tight contact with the contact portion Q8). 13) is sealed by a sealing part (19) of the base (16) facing the opening. Then, in this sealed state, as shown in FIG. 5, the toner container (7) is manually reversed and turned upside down, and held and fixed by a latch mechanism not shown.

After attaching the toner container (7) to the toner supply device in this way, when the copy start button (not shown) is operated to start the copy operation, the motor (circuit) etc. are activated and the toner container (7) is activated. 7) The auger (15) inserted into the toner container (7) starts rotating, and the toner (9) in the toner container (7) is conveyed and supplied into the developer container (8) by the auger [151].

As described above, when this embodiment is used, when the toner container (7) is inverted/upside down and fixed to the toner supply device, the space between the toner supply port (13) and the sealing part (19) is sealed. This ensures that toner leakage is prevented.

Furthermore, when this embodiment is used, the toner in the toner container (7) is transported into the developer container (8) while the space between the toner supply port (13) and the contact portion (18) remains sealed. Since the toner (9) is supplied, the toner (9) will not leak during transportation and supply.

〔Effect of the invention〕

As described above, when the toner supply device of the present invention is used, when the toner container is attached to the toner supply device and toner is supplied, there is a sealing member between the toner supply port of the toner container and the conveying member. Since it is sealed, it is possible to reliably prevent the interior of the machine from being contaminated due to toner leakage.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing a conventional toner supply device;
FIG. 2 is a schematic sectional view showing another conventional toner supply device, FIG. 3 is an explanatory diagram showing a toner supply device according to the present invention, and FIG. 4 is a toner supply device of FIG. FIG. 5 is a schematic cross-sectional view when the container is attached, and FIG. 5 is a schematic cross-sectional view when the toner supply device of FIG. 3 is operated. Code explanation +11 (41+71...Toner container (LA)
(4aX13)......Toner supply port +21 (5
1 (121... Seal (10)...
Conveyance member (11)...Sealing member 05)...
... Auger (18) ... Close contact part (19)
... Blockade Department Patent Applicant Fuji Cellosox Co., Ltd. Agent Tomohiro Nakamura Patent Attorney Katsuo Naruse Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In a toner supply device of a copying machine that has a toner supply port sealed with a seal or the like and supplies toner from a toner container filled with toner to a developer container, the toner supply device is inserted into the toner supply port of the toner container, and is inserted into the toner supply port of the toner container. A toner supply device comprising: a conveyance member that extracts toner from a toner container to the outside and conveys it into a developer container; and a sealing member that seals between the conveyance member and the toner supply port.