JPS62200377A - Toner repienishing cartridge - Google Patents

Abstract

PURPOSE:To prevent the periphery from being contaminated by a toner before and after loading a cartridge, by covering the cartridge whose aperture part is closed tightly by a sheet, by a cover body being freely slidable, and providing a stopper for controlling its slide, on the cover body. CONSTITUTION:The aperture of a cartridge body 15 for containing a toner is covered with a sheet 22, its extended part 23 is turned back and stuck by a label (a), a guide part 17 is inserted into the rail part 25 of a cover body 24 and the body 15 is stored. At the time of loading the body 15 to a copying machine 13, the cover body 24 is removed in advance, but it is controlled by a stopper so that the sheet is not peeled off by removing the cover body in the opposite direction by mistake. After the body is loaded, the sheet 22 is drawn off and the toner is replenished, and at the time of drawing out the empty body 15, the body 15 can be drawn out without making it overrun by inserting the cover body 24 and setting it integrally with the body, therefore, it does not occur that the periphery is contaminated by the toner. Accordingly, the contamination by the toner before and after loading the cartridge can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cartridge for replenishing toner to a developing device such as an electrostatographic copying machine or a facsimile machine.

[Conventional technology]

As a cartridge for toner replenishment, it is easy to replenish the toner inside the cartridge body to the toner replenishing part of the developing device, and when the empty cartridge body is taken out of the device, the remaining toner inside the cartridge body can be removed from the device. An easy-to-use device that can prevent the device from falling and scattering around it has been proposed in Japanese Utility Model Application Publication No. 59-41364.

As shown in FIG. 11, this toner replenishment cartridge has a toner replenishment port 14 on both sides of the cartridge main body 15.
A flexible sheet 2 is provided with guide members 17 and 18 for regulating the insertion/removal direction, and the toner supply port 14 is removable.
2, and the sheet 22 is folded back toward the rear in the cartridge insertion direction to form a sheet peeling member 23, and the sheet peeling member 23 and the sheet 22 are slidable along the guide members 17 and 18. lid body 24
The cartridge main body 15 is placed in the toner replenishing section of the developing device with the lid body 24 removed, and the sheet 22 is peeled off via the sheet peeling member 23. Cartridge body 1
The toner in the cartridge body 15 can be replenished, and the toner supply port 1 of the cartridge main body 15 can be refilled by aligning the lid body 24 to a predetermined position.
4 with the lid body 24 to close the cartridge body 15.
By pulling out the empty cartridge body 15, the empty cartridge body 15 can be taken out without causing the residual toner inside the cartridge body 15 to fall and scatter around the device.
It is extremely easy to use.

[Problem that the invention attempts to solve]

However, there was some room for improvement in terms of ease of handling.

That is, the conventional toner replenishment cartridge A includes a cartridge body 1 covered with a sheet 22 with a sheet peeling member.
5, the lid 24 that covers the sheet 22 can slide in any direction in the cartridge insertion/removal direction, so if you are not very careful when removing the lid 24, as shown in FIG. The lid body 24 may be slid in the sheet peeling direction, which may cause the toner supply port 1
If the sheet 22 that seals the lid 24 is opened, or if the folded end of the sheet 22 is touched together with the lid 24 when the lid 24 is removed, the sheet 22 may be unsealed. This has the disadvantage that the toner tends to fall and scatter unexpectedly.

Furthermore, when the empty cartridge body 15 is pulled out, as shown in FIG. Mouth 14
As a result, the residual toner inside the cartridge body 15 falls and scatters as a result of being opened on the overrun side.

The present invention provides a toner replenishing cartridge which is a simple improvement, eliminates the above-mentioned conventional drawbacks, and has excellent functions in terms of handling.

Means for Solving Problem c] In order to achieve the above object, the present invention includes a cartridge main body having an insertion/extraction operation tool, with guide members for regulating the insertion/extraction direction being provided on both sides of the toner replenishment port. , the toner supply port is sealed with a peelable flexible sheet, and a sheet peeling member is connected to the front side of the sheet in the cartridge insertion direction, and the sheet peeling member is folded back toward the insertion/removal operation tool. In the toner replenishment cartridge, the sheet peeling member and the sheet are covered by a lid that can freely slide along the guide member, and the sheet peeling member covers the sheet with the sheet peeling member covered by the lid. The present invention is characterized in that the lid is provided with a stopper member that restricts the sliding of the lid in the peeling direction.

[Effect]

According to the above characteristic configuration, the function of the stopper member makes it impossible to slide the lid in the sheet peeling direction in the above-mentioned covered state by the lid, and it is possible to prevent unexpected sheet peeling.

Also, when the empty cartridge main body is extracted using the lid, the stopper member functions to prevent the empty cartridge main body from overrunning the lid.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross section of a toner supply cartridge A, and FIG.
3 and 3 show the details of the developing device, which consists of a developing case 2 with an opening corresponding to the photoreceptor 1, a developing sleeve 3, and two rotary agitators. tools 4 and 5, and a toner replenishing roller 6 made of a sponge or the like.
At the same time, a partition plate 8 is provided which allows the developer after cutting the ears by the ear cutting plate 7 to flow back toward the stirring tool 5 on the side of the toner replenishment roller 6, and the toner replenishment roller 6 is connected to a toner flow opening. 9, and the toner replenishment hopper l
O is fitted into the upper opening side of the developing case 2, and an opening 12 is provided at one end side, and the toner replenishing section 11
A cartridge case 13 is provided to cover the upper opening of the toner replenishment hopper 10, and a cartridge main body 15 of a toner replenishment cartridge A, the specific structure of which will be explained next, can be freely inserted and removed. The toner replenishing device B to be provided is mainly composed of a toner replenishing roller 6, a toner replenishing hopper 10, and a cartridge case 13.

As shown in FIG. 7, the toner supply cartridge A is composed of a cartridge body 15 and a lid 24. As shown in FIG. One cartridge main body 15 is long in the axial direction of the toner replenishing roller 6, and substantially matches the inner surface shape of the cartridge case 13, and has a toner replenishing port 14 on the lower side when set in the toner replenishing section 11. Position to,
Further, a toner supply port 16 is provided in series, and rib-like members 17 to 20 are provided extending around the circumference of the toner supply port 14, and more specifically, the width of the toner supply port 14 among the rib-like members 17 to 20 is Those on both sides of the direction are guide members 17 and 18 for regulating the insertion and removal direction of the toner replenishment cartridge A in the axial direction of the toner replenishment roller 6, and a rib-like member 19 on the opposite side from the toner supply port 16. An operating tool 21 for inserting and removing the cartridge is provided on the upper surface, and the toner supply port 14 is sealed with a releasable flexible sheet 22, and the front side of the sheet 22 in the cartridge insertion direction (
A sheet peeling member 23 that is an extension of the sheet 22 itself is provided continuously on the side opposite to the insertion/removal operation tool 21, and the end portion of the sheet peeling member 23 is folded back toward the insertion/removal operation tool 21 side. A label a or the like is attached to the upper surface of the rib-like member 19. The outer surface of each bent corner of the cartridge body 15 is formed into a cam surface d in the actual image.

On the other hand, a rail portion 25.25 into which the guide member 17.18 is slidably fitted is connected to the lid body 24 having a shape corresponding to the outer periphery of the rib-like members 17 to 20. .25 opening on one end.

b is formed to expand outward so as to facilitate fitting of the guide members 17, 18, and the rail portions 25, 2
5, the outer end (
Or, as described later based on FIGS. 8 and 9,
A stopper member 26 that comes into contact with the outer end of the rib-like member 19 on the side of the toner supply chamber 16 is continuously provided.

Then, the lid body 24 is externally fitted onto the guide member 17.18 from the side where the sheet peeling member 23 is folded back, and the lid body 24 is slid until the stopper member 26 comes into contact with the outer end of the rib-like member 20. Then, the sheet 22 and the sheet peeling member 23 are covered with the lid 24, and the lid 24 is covered with the sheet 22 and the sheet peeling member 23.
4, the cartridge main body 15 is filled with replenishing toner from the toner supply port 16, and a cap 31 is attached thereto, thereby constructing a toner replenishing cartridge A as a product.

According to this configuration, as shown in FIG. 7, when loading the cartridge main body 15 into the toner replenishing section 11, the stopper member 26 acts to cause the removal direction of the lid body 24 to be aligned with the peeling direction of the sheet peeling member 23. Since the seat 2 is restricted in the opposite direction, removing the cover 24 may cause the seat 2 to
There is no risk of peeling off 2.

It should be noted that the cartridge main body 15 and the member (1
6 to 21) and the lid body 24 are each made of hard or semi-hard synthetic resin.

Now, returning to FIG. 3 and as shown in FIGS. 4 to 8, on the top plate portion 13a on the opening 12 side of the cartridge case 13 that houses the toner replenishment cartridge A,
In addition to providing two slits c and c in the cartridge insertion/removal direction, a member 13b which can be freely bent in the vertical direction between the slits c and c is extended outward, as will become clear in the description below. As can be seen, the extended portion forms an operating tool 27 for releasing the removal stop.

5, when the cartridge main body 15 with the lid 24 removed is inserted into the predetermined position of the toner replenishing section 11, the cam portion at the upper corner on the front end side in the cartridge removal direction A retaining member 28 that abuts slightly below d and prevents the cartridge main body 15 from being removed is attached to the member 1 between the slits c and c.
3b, and as is clear in FIG. As the cartridge main body 15 is deflected downward by an amount corresponding to the thickness of the sheet 22 and the sheet peeling member 23, the removal preventing portion e of the removal preventing member 28 is activated by the cam at the upper corner of the front end side in the cartridge removal direction. Part d
It is set so that it comes into contact with.

Furthermore, from the retaining member 28 to the operating tool 27 side,
A ridge g formed on the slope r on the side of the operation tool 27 is continuously provided so as to receive the cartridge main body I5, and as shown in FIG. The guide member 17 of the cartridge main body I5 in the state.
18 is fitted into the guide rail 29, 29 formed between the toner hopper 10 and the cartridge case 13, and when the cartridge main body 15 is inserted into the toner supply section 11, the upper corner of the front end example in the cartridge insertion direction The cam portion d contacts the inclined surface r of the ridge portion g, and the operating tool 27, the inter-slit member 13b, and the retaining member 28 are bent and deformed in the removal release direction, that is, upward, and the cartridge main body 15 is removed from the toner. It can be inserted into the supply section 11.

Then, as shown in FIG. 5, the cartridge body 15 is inserted into the toner supply section 11 at a predetermined position where the rib-like member 20 at the front in the insertion direction of the cartridge body 15 comes into contact with the rising stopper 30 of the toner supply hopper 10. In this state, the retaining member 28 returns to the initial position, and the retaining member 28 comes into contact with a slightly lower part of the cam portion d at the upper corner of the front end side of the cartridge main body 15 in the cartridge extracting direction, and the retaining member 28 returns to the initial position. 15 is prevented from being removed from the toner supply section 11.

In this state, as shown in FIG. 7, by peeling off the label a and pulling out the sheet IFIIg1 member 23, the sheet 22 that is tightly attached around the toner supply port 14 of the cartridge body 15 is peeled off, and the cartridge body 15 stored toners are replenished into the flopper 10, and as described above, when the sheet 22 is peeled off, the removal preventing portion e of the removal preventing member 28 is located at the upper corner of the front end side in the cartridge removal direction. The cam part d is in contact with the cam part d, and when replenishing the toner to the omputer 10, as shown in FIGS. When a force is applied to the cam part d, the removal prevention member 28 is moved in the release release direction, so that the empty cartridge main body 15 can be easily removed without requiring any special release operation. It is.

However, if necessary, the removal can be stopped and released using the operating tool 27.

When removing the empty cartridge main body 15, the lid body 24 that was removed and stored from the toner replenishment cartridge A during the previous toner replenishment can be reused, or the Using the lid 24 removed from the cartridge A, remove the rail portion 25.2 on the opposite side of the stopper member 26.
5 into the rib-like member 19 on the insertion/ejection operation tool 21 side of the empty cartridge main body 15, and while supporting and holding the lid 24, pull the insertion/ejection operation tool 21 toward you. , so that the toner supply port 14 of the empty cartridge main body 15 is relatively covered with the lid 24, and the empty cartridge main body 15 is closed with the lid 24 until the rib-like member 19 comes into contact with the stopper member 26. The empty cartridge main body 15 is pulled out from the toner supply section 11 without overrunning the empty cartridge main body 24, and as shown in FIG. Therefore, the empty cartridge main body 15 can be easily handled and extracted.

The subsequent insertion of the cartridge main body 15 into the toner replenishing section 11 for toner replenishment can be performed by the same means as described above.

Although the peeling member 23 of the sheet 22 was formed by extending the sheet 22 itself, the peeling member 23 of the sheet 22
It is possible to change the method by joining a tape string-like thing separate from the sheet 22 to the sheet 22.

Further, a cam portion d is formed at the upper corner of the front end side of the cartridge main body 15 in the cartridge removal direction, so that when the cartridge main body 15 is removed after the sheet is peeled off, the removal prevention member 28 is moved in the removal prevention direction. However, as shown in FIG.
The cam portion d may be formed on the side, or the cam portion d may be provided on both the retaining member 28 and the cartridge body 15.

〔Effect of the invention〕

As explained above, according to the toner replenishment cartridge of the present invention, when the lid covers the sheet and the sheet peeling member, it is impossible to slide the lid in the sheet peeling direction. Since the removal direction of the lid body from the cartridge body is limited to the opposite side to the sheet peeling direction, it is possible to reliably eliminate the situation where the sheet is accidentally peeled off when the lid body is removed. When the empty cartridge body is removed using the lid, the stopper member that regulates the removal direction of the lid functions effectively to reliably prevent the empty cartridge from overrunning the lid. As a result, it is possible to reliably prevent the residual toner inside the empty cartridge main body from falling and scattering around the VT position, and as a whole, it is possible to prevent the residual toner in the empty cartridge main body from falling and scattering around the VT position. The problem was easily solved.

[Brief explanation of drawings]

1 to 1O show embodiments of the present invention, FIG. 1 is a longitudinal sectional view of a toner replenishment cartridge, FIG. 2 is a longitudinal sectional view of a developing device, and FIG. 3 is a longitudinal sectional view of the main parts of the developing device. Exploded perspective view,
FIG. 4 is an explanatory diagram of inserting the cartridge body into the toner replenishing section, FIG. 5 is a sectional view of the cartridge body in a state where removal is prevented, and FIG. 6 is an explanatory diagram of extracting the empty cartridge body.
FIG. 7 is a perspective view showing the insertion of the cartridge body into the toner supply section, FIG. 8 is a perspective view showing the removal of the empty cartridge body from the toner supply section, and FIG. 9 is a vertical cross-sectional view of the empty cartridge body extracted. , FIG. 10 is a partial sectional view showing a cam portion of another embodiment. 11 to 13 are longitudinal sectional views of the conventional example. 14... Toner supply port, 15... Cartridge body, 17° 18... Guide member, 22... Sheet, 2
3... Sheet peeling member, 24... Lid body, 26...
Stopper member.

Claims (1)

[Claims] In addition to providing guide members for regulating the insertion/removal direction on both sides of the toner replenishment port of the cartridge body equipped with the insertion/removal operating tool,
sealing the toner supply port with a removable flexible sheet;
Further, a sheet peeling member is provided in series on the front side of the sheet in the cartridge insertion direction, and the sheet peeling member is folded back toward the insertion/removal operation tool to slide the sheet peeling member and the sheet along the guide member. In the toner replenishment cartridge which is covered by a flexible lid, a stopper member for restricting the sliding of the lid in the sheet peeling direction by the sheet peeling member when the sheet peeling member and the sheet are covered by the lid; A toner replenishment cartridge characterized by being provided in a lid body.