JPH0631485Y2 - Copier toner cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a toner cartridge which can be freely put in and taken out from a toner supply unit of an electrophotographic copying machine and in which toner as a developer is enclosed.

<Prior Art> Generally, as shown in FIG. 5, a toner cartridge having a toner supply unit of an electrophotographic copying machine, in which toner as a developer is enclosed, is a box type toner cartridge. An opening 3 for the outlet of the toner 2 is formed on the lower surface of the main body 1, and a film band 4 for sealing the opening 3 in a peelable manner is provided.

Conventionally, in order to peel off the film band 4 when the toner 2 is supplied to a developing tank or the like, a pull-out portion 4a that can be pulled out to the outside of the main body is secured at the end of the film band 4.
Then, the film band 4 can be peeled from the main body 1 by holding the pull-out portion 4a by hand and pulling it.

That is, one end portion 4b of the film strip 4 in the strip direction is strongly adhered to the opening peripheral edge portion from the one opening edge 3a of the opening 3 to the other opening edge 3b by gluing or the like.

Then, the film band 4 is folded back by 180 ° in the direction of the one side opening edge from the bonding portion with the other side opening edge 3b, and its end is bent upward by 90 ° at the position outside the one side opening edge 3a. . The end portion of the film strip 4 passes through the guide chamber 5 through the lower end opening 5a of the film guide chamber 5 formed on one side of the main body 1 and is exposed to the outside of the main body through the upper opening 5b of the guide chamber 5 to form a drawer portion 4a. Has been done.

In the above conventional structure, when the handle portion 4a is pulled, the film band 4 starts to be peeled from the other side opening edge 3b. After that, it is peeled from the opening edge in the direction of the opening edge on one side. Then, finally, the one side opening edge 3a is peeled off. The peeled film band 4 successively passes through the guide chamber 5 and is drawn out from the upper opening 5b, and finally is completely separated from the main body 1.

<Problems to be Solved by the Invention> However, with the above configuration, an extremely strong force is required when pulling the film strip 4 by hand when peeling. In addition, since the toner is pulled by a strong force, the reaction force causes the toner to spill out of the toner cartridge and stain the inside of the copying machine with the toner, or when the film band is exposed to the outside, the toner adhered to the film band is removed. In some cases, the user's careless touch may stain hands, clothes, and other parts with toner.

In view of the above-mentioned problems, an object of the present invention is to provide a copying machine capable of easily peeling off a film band and performing reliable peeling without exposing the film band to the outside and confirming the peeling. To provide a toner cartridge.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention provides a toner cartridge body (10) in which a housing portion for housing toner is formed, and a toner cartridge body formed on one side surface of the toner cartridge body. The toner supply opening (11) is sealed so that it can be peeled off, and a film strip (12) having a different color portion (21A) indicating the end of winding at the sealed one side end, and the toner of the film strip. A winding shaft (13) rotatably supported by the toner cartridge body to wind the film band by fixing the other end that does not close the supply opening.
And a winding handle (14) for applying a large rotational moment to the winding shaft, a guide chamber that covers the winding shaft and the film band when the winding shaft is peeled off and is wound around the winding shaft. A cover (10a) forming a part of the toner cartridge body forming (17) and a transparent body (22) through which the winding shaft can be seen are arranged at least in a portion of the cover facing the winding shaft. A toner cartridge comprising: a confirmation unit (C) for confirming the end of winding, which is composed of the transparent body and the different color portion of the film band.

<Operation> According to the toner cartridge of the present invention having the above-described configuration, when the toner in the developing device is used up, the toner cartridge body (10) containing new toner is mounted in the toner supply unit of the developing device body.

In this state, when the handle (14) is first rotated in the winding direction, the winding shaft (13) is rotated. Since the gripping tool (14) applies a large rotational moment to the winding shaft (13), even if the winding operation force is small, a pulling force is applied to the film band (12) to open the toner supply opening (11). ) Film band (1
Take up 2) on the take-up shaft (13) and gradually peel it off. The winding state at this time is that the rotating winding shaft (13) is made transparent (22).
Since it can be seen through, the state can be confirmed. In this case, the film strip (12) that is peeled off and wound up is
Since the inside of the (17) is guided and the winding portion is not particularly exposed, there is no danger of toner scattering and toner adhesion.

Further, since the winding shaft (13) is rotated by the gripping tool (14), the operation force for peeling off the film band (12) may be very small, so an unreasonable force is applied to the toner cartridge body (10). In addition, the toner does not spill out to the outside due to toner scattering.

Further, by seeing through the transparent body (22) and checking the different color portion (21A) showing the final winding portion formed on the film band (12), it can be recognized that the winding operation is completed. All you have to do is complete it at a time, and you can avoid doing unwieldy operations.

<Embodiment> Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.

FIG. 1 is a vertical sectional side view of a toner cartridge of a copying machine according to an embodiment of the present invention, FIG. 2 is a vertical sectional front view of a toner cartridge of the copying machine, and FIG. FIG. 4B is a front view showing the posture, FIG. 4B is a front view showing the standby posture of the handle, and FIG. 4 is a plan view of the film band showing the winding end confirmation means.

As shown in the drawings, in the present invention, a toner cartridge having a toner supply unit U for supplying toner to a developing tank of an electrophotographic copying machine and having a toner T as a developer enclosed therein is hollow. A film strip 12 is provided for releasably sealing the toner supply opening 11 formed on the lower surface of one side of the box-shaped toner cartridge body 10.

A film stripping take-up shaft 13 is attached to the other end of the film band 12, and the take-up shaft 13 is rotatably supported by the toner cartridge main body 10 and is attached to the take-up shaft 13. A winding handle 14 that gives a large rotation moment is provided so as to be switchable between a winding posture A and a standby posture B, and a winding end confirmation means C is formed at one end of the film band 12.

As shown in FIG. 2, the interior of the toner cartridge main body 10 is provided with a partition wall 15 having a chamber 16 having the opening 11 on the surface in which the toner T is enclosed, and a film band containing the winding shaft 13. It is divided into a winding guide room 17.

The lower end edge 15a of the partition wall 15 has the same height as the lower end of the peripheral wall of the main body 10.

The rectangular opening 1 is arranged at the lower end of the toner chamber 16, and the opening peripheral edge including the partition wall lower end edge 15a is a film band attachment portion 18.

One end of the film strip 12 for the long strip in the strip direction is strongly bonded to the film strip mounting portion 18 by gluing or the like to form an opening sealing portion 19.

The film strip 12 is folded back 180 ° toward the guide chamber from the left end of the sealing portion 19 and then folded upward by 90 ° along the partition wall 15 below the guide chamber 17.
Here, the film band 12 is fitted into the guide chamber 17 through the lower end opening 17a of the guide chamber 17.

The winding shaft 13 is horizontally arranged at the top of the guide chamber 17 in the front-rear direction. Both ends of the winding shaft 13 are rotatably fitted in the front and rear vertical walls of the main body 10. Also,
One end 13a of the winding shaft 13 is formed to have a large diameter to prevent the winding shaft from slipping off, and the other end 13b is formed in an annular shape and has a handle attachment circular hole 20 in the center. The other end of the film band 12 in the band direction is fixed to the winding shaft 13 so as to be wound up.

The handle 14 is a large-diameter annular ring, which penetrates the mounting circular hole 20 by loose fitting. The handle 14 is shown in FIG. 3 (b).
As shown in FIG. 3, a waiting posture B hanging from the circular hole 20 by its own weight, and a winding position which is lifted upward as shown in FIG. It can be switched to the taking position A.

Further, the partition wall side end portion 21 of the sealing portion 19 of the film band 12 is formed with a different color portion 21A having a color tone different from that of other portions due to coating or the like, as shown by the diagonal lines in FIG. .

On the other hand, in FIG. 2, the right side wall 10a of the toner cartridge main body 10 which covers the winding shaft 13 and the film strip 12 in the winding process so as to be housed therein and forms the winding guide chamber 17 is provided. is doing. This cover 10a
A transparent body 22 made of plastic or the like is provided at a portion facing the winding shaft 13 so that the winding shaft 13 inside the cover 10a can be seen through. Therefore, the process of winding the film strip 12 wound around the winding shaft 13 can be visually observed on the transparent body 22 of the cover 10a.

The winding completion confirmation means C includes a different color portion 21A formed on the end portion 21 of the film band 12 and the transparent body 22.
It is composed of and.

In the above configuration, when the toner T is supplied to the developing tank or the like, the toner cartridge main body 10 is attached to the toner supply unit U of the copying machine.

Then, the user holds the gripping tool 14, switches from the standby position B to the winding position A, and twists and rotates it with an appropriate force. Then, since the distance between the engaging portion of the handle 14 with the winding shaft 13 and the force point is large, a large rotational moment acts with a small force.
Therefore, the winding shaft 13 rotates in the rotation direction of the handle 14, so that the film band 12 is pulled. Due to its tensile force,
The sealing portion 19 is gradually peeled from the left end of the film band attachment portion 18. Along with this, the film strip 12 slides upward in the guide chamber 17 and is gradually taken up by the take-up shaft 13.

When the gripping tool 14 is turned around and the winding shaft 13 is continuously rotated, the sealing portion 19 is completely peeled off from the mounting portion 18 until the opening 11 is fully opened, and the toner T flows out therefrom. Finally, the winding shaft 13 is in a state in which the film strip 12 is completely wound up.

Further, at this time, the color tone of the tip portion 21 of the sealing portion 19 of the film band 12 can be visually observed from the transparent body 22, so that the completion of winding can be confirmed.

When the handle 14 is released after the winding is completed, the handle 14 is switched to the standby position B by its own weight. Therefore, the handle 14 after being used for winding is in a state of being hung on the winding shaft 13, does not travel to the toner cartridge body 10, and does not occupy a space, so that it is not an obstacle. Also,
Especially when performing color development, the toner supply unit U
It is convenient to move, transport, and store the developing tank and the like when it is equipped with the supply unit U.

Further, if the toner supply unit U or the developing tank provided with the toner supply unit U has a spatial allowance, the winding shaft 13 and the gripping tool 14 may be integrally formed instead of separate members. in this case,
Although a little space is required, the operability of the winding shaft 13 is improved.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, the handle 14 is not limited to the annular ring as in the above-described embodiment, but may be a rod-shaped member that is attachable to and detachable from the circular hole 20 of the other end 13b of the winding shaft 13. In this case, the rod-shaped material may be inserted into the circular hole 20 at the time of winding, and the both sides of the circular material may be rotated.

The take-up shaft 13 does not necessarily have to be arranged at the uppermost part of the guide chamber 17, but may be arranged at any position in the guide chamber 17 in accordance with the shape of the toner supply unit U and the like. .

Further, the transparent body 22, which is a component of the winding completion confirmation means C, may be provided on the upper surface of the main body 10 or the like at a position where the winding shaft 13 can be seen from the outside.

<Effect of the Invention> According to the toner cartridge of the present invention, since an unreasonable force does not act on the toner cartridge body when the film strip is peeled off, toner spillage from the toner cartridge body due to toner scattering due to the repulsion Disappear.

Further, since the film strip after peeling is not exposed to the outside, it is possible to prevent the film strip from being contaminated by the toner attached to the film strip.

Further, in the final state of peeling the film strip, since the different color portion formed on the film strip can be seen through and recognized, the peeling operation is not completed halfway, and after the peeling operation is surely performed, the film strip is removed. The peeling operation of can be completed, and useless operation can be avoided.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a toner cartridge of a copying machine according to an embodiment of the present invention, FIG. 2 is a vertical sectional front view of a toner cartridge of the copying machine, and FIG. FIG. 4B is a front view showing the attitude, FIG. 4B is a front view showing the standby position of the gripping tool, FIG. 4 is a plan view of the film band showing the winding end confirmation means, and FIG. FIG. 3 is a vertical sectional front view of the toner cartridge. 10: Main body, 11: Opening, 12: Film band, 13: Winding shaft, 13b: Other end, 14: Handle, 15: Partition wall, 1
6: Toner chamber, 17: Guide chamber, 17a: Opening, 18: Film band mounting part, 19: Sealing part, 20: Circular hole, 21: Tip part, 22: Transparent body, A: Winding posture, B: Standby Posture, C: winding end confirmation means, T: toner, U: toner supply unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Saint Toshige Shigeru 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within Sharp Corporation (72) Jinichi Nagata 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within Sharp Co., Ltd. (56) Bibliographic Reference Sho 61-117170 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A toner cartridge main body (10) in which a storage portion for storing toner is formed, and a toner supply opening (11) formed on one side surface of the toner cartridge main body are releasably sealed, The film band (12) having a different color part (21A) indicating the end of winding at the closed one side end and the other end of the film band that does not close the toner supply opening are fixed and the film band is wound. A winding shaft (13) rotatably supported by the toner cartridge body for
And a winding handle (14) for applying a large rotational moment to the winding shaft, a guide chamber that covers the winding shaft and the film band when the winding shaft is peeled off and is wound around the winding shaft. A cover (10a) forming a part of the toner cartridge body forming (17) and a transparent body (22) through which the winding shaft can be seen are arranged at least in a portion of the cover facing the winding shaft. A toner cartridge for a copying machine, comprising: a confirming unit (C) for confirming the end of winding, which comprises the transparent body and the different color portion of the film band.