JPH0622850Y2 - Developer storage cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a developer accommodating cartridge, and more particularly to a developer accommodating cartridge to be supplied to an electrostatic recording device such as a copying machine or a facsimile.

(B) Conventional Technology As a method of supplying toner (developer) from the outside to a developing device of a copying machine, a method of using a toner cartridge has been widely adopted. Specifically, for example,
The toner cartridge is configured by filling a cylindrical container with toner and sealing the opening of the container with tape. Therefore, when supplying toner to the developing device of the copying machine, the worker first peels off the tape to open the opening portion of the cartridge, and then inserts the cartridge into the toner supply opening of the copying machine, and then the opening portion. Rotate so that it faces downward. Therefore, depending on the operation of the operator, the toner may be scattered to the outside, or the toner may be attached to the back of the tape, so that the clothes of the operator may be contaminated through the tape.

To solve these problems, it has been proposed that when a cartridge is inserted into a toner supply port of a copying machine, a tape can be opened to seal the opening while the cartridge is being inserted (Actual Development Sho 57. -103450 gazette). In addition, it has been proposed that the opening of the cartridge is sealed with a tape from the inside, and one end of the tape can be pulled to the outside from a slit formed in the cartridge (Shokai Sho-50-7).
See Japanese Patent No. 4347).

(C) Problems to be solved by the device However, in the above-mentioned cartridge, the area of the tape to be opened is large, and accordingly, the amount of toner adhered to the tape is large, and thus the toner is scattered to the outside during the tape opening operation. There is a problem in that the amount of toner to be used also increases.

(D) Means for Solving Problems and Actions Thereof The present invention is directed to a container main body for accommodating a developer, a closing member for closing an opening formed in the container main body, and a thin string-like closing member. Is attached to and pulls its tip toward you,
A developer accommodating cartridge comprising a cutting line formed in the closing member, and a string body capable of forming a developer discharging opening in the closing member, which allows discharging the developer through the opening.

That is, according to this invention, a specific thin string body is attached to the closing member that closes the opening of the container body, and by pulling the string body, the closing member itself is not peeled, but the thin string body is closed only by peeling. Since the opening for discharging the developer can be formed in the member, it is possible to almost prevent the contamination of the hand or clothes when the developer is put into the electrostatic recording device.

Here, in order for the string body to form the developer discharging opening in the closing member, it is preferable to form the following cutting line in the closing member. That is, the cutting line is a substantially U-shaped one corresponding to each side of the opening of the container main body, and particularly when the opening of the container main body is rectangular, one long side of the opening of the container main body and this long side A substantially U-shaped cutting line corresponding to the following two short sides is preferably mentioned.

In particular, as in the embodiment shown in FIG. 1 described later, the string body is attached along the part of the closure member (the back surface) that does not come into contact with the developer, that is, the part slightly outside the part that comes into contact with each side of the opening of the container body. This is preferable because it is possible to prevent the developer from adhering to the stretched string.

As a further different cutting line, when the opening of the container main body is rectangular, the straight line portion corresponding to the center line in the longitudinal direction of the opening and the radiation from each end of the straight line portion to the opposite short side ends of the opening, respectively. You may employ what consists of a linear part.

Examples of the closing member that can be used in this invention include paper, plastic film, cellophane, and the like. Of course, this blocking member does not break during setting, that is, during manufacturing, transportation, and setting in the developer input port of the electrostatic recording device, and on the other hand, strength enough to easily form a cutting line by pulling the string body. is necessary.

Strings that can be used in the present invention include fiber thread, synthetic resin thread, thin synthetic resin tape, and the like. Of course, the string body needs to have a strength that does not break even if the rear part of the string body is attached to the closing member and the tip of the string body is pulled from the surface to cut the closing member. Here, the attachment means that the string body is attached to a predetermined position of the closing member (for example, substantially U-shaped).
In addition, it means that the string body is fixed so as not to be displaced from the closing member by the pulling operation. Specifically, for example, the string body is adhered to the back surface of the closing member, or the adhesive force increases the strength of the closing member. In the case of turning, it is adhered to the surface of the closing member.

(E) Embodiment The present invention will be described in detail based on the embodiment shown in the drawings. The invention is not limited to this.

1 and 2, a developer accommodating cartridge 1 is a cardboard container having a cylindrical shape that can be inserted into a developer input port 2 of a copying machine, and having a long hole 4 in a barrel wall 3 parallel to the center line. Body 5
And the developer (toner) 6 stored in the container body.
And a lid 7 made of synthetic resin for closing the openings at both ends of the container body 5.
(8, not shown), a closure paper 9 attached to the surface of the body wall 3 to close the long hole 4 of the container body 5, and an adhesive (for example, a synthetic rubber adhesive) on the back surface of the closure paper 9 made of cotton thread. ), And pulling the tip portion 10 toward you, the sticking lines 14, 15 in a substantially U shape corresponding to both short sides 11 and 12 and one long side 13 of the long hole 4 of the container body 5. A cutting line along the line 16 can be formed, whereby the stored developer discharging opening 17 is formed.
It mainly consists of the operating thread 18 as a string body capable of forming the. In addition, 19 is a handle formed integrally with the lid body 2,
Reference numeral 0 denotes a projection for positioning when engaging with the developer inlet 2, 2
Reference numeral 4 denotes a back surface of the closing paper 9, which is a metal rod-shaped weight bonded to the inside of the long hole 4.

Thus, the operating thread 18 is adhered to the back surface of the closure paper 9 from the rear end 22 to the front part 15 corresponding to the short side 12 of the long hole 4 and then to the part 16 corresponding to the long side 13, and then only the front surface. Jump out as loop 23. And again the operation thread 18
Is adhered to the back surface of the closure paper 9 at the rear portion 14 corresponding to the short side 11, and then pops out to the front side, and the loop 23
To reach the front end portion 10 on the front side.

It should be noted that the portions 14 and 15 of the sticking line of the operation thread 18 are both slightly inclined so that the closure paper 9 can be sequentially cut by a tensile force.

Here, the method of using the cartridge 1 will be described with particular reference to FIG.

First, the cartridge 1 is inserted into the developer input port 2 so that the protrusion 20 thereof is along the engaging groove 21 of the developer input port 2 of the copying machine, and then rotated by the handle 19. In this state, the elongated hole 4 of the container body 5 faces downward as shown in FIG.

Then, when the tip portion 10 of the operating thread 18 is pulled toward you,
Cutting lines are formed on the closure paper 9 in the order of the sticking lines 14, 16 and 15. The closure paper 9 thus cut in a substantially U-shape is easily rotated and opened by the weight 24 on the back surface thereof about the line connecting the ends of the cutting lines, and the opening is made through the long hole 4 of the container body 5. The stored developer 6 is dropped into the developing chamber 25 from the section. Of course, the developer in the developing chamber 25 is the developing roller 2
6 is supplied to the photosensitive drum 27.

As described above, the developer 6 is supplied into the developing chamber 25 into the cartridge 1 only by the pulling operation of the tip portion 10 of the operating thread 18, and at that time, the operating thread 18 hardly touches the developing developer 6, so that I can't help cleaning my clothes.

Unlike the above embodiment, as shown in FIG. 3, the operating thread 18a
It is also possible to form the rear part of the fork into two legs. That is, the rear portion of the operating thread 18a is branched into the adhering portion 14a corresponding to the short side 11a, the adhering portion 16a corresponding to the long side 13a, and the adhering portion 15a corresponding to the short side 12a. The attached portion 1 is pulled by pulling the tip portion 10a of 18a.
4a forms the cutting line on the closure paper 9a first and separates from the other portions 15a and 16a.

Further, unlike the above-described embodiment, the cutting line of the closing member 9b is substantially omitted as shown in FIGS. It can also be formed into a shape. That is, the operation string 18
b is a straight line portion 28b corresponding to the center line in the longitudinal direction of the rectangular opening 6b of the container body 5b, and radial straight line portions 29b and 30b facing from the rear end of this straight line portion to both ends of the short side of the opening 6b. Similarly, the triangular portion 31b extending from the front end to the front side (front side) has the radial straight line portions 29b and 30.
It mainly consists of a triangular portion 32b connecting b and a tip portion 33b which returns from the triangular portion and extends forward. Then, the linear portions 28b, the radial linear portions 29b and 30b, and the triangular portion 31b are attached to the back surface of the closing member 9b.

Incidentally, at the time of pulling the string body 18b, the radial linear portions 29b,
In order to smoothly cut the closing paper 9b by 30b, the closing paper 9b is provided with cuts S corresponding to both side edges of the radial linear portions 29b and 30b.

Thus, when the tip portion 33b of the string body 18b is turned upside down as shown in FIG. 4 (the developer storage cartridge 1b is inserted into the developer input port and rotated 180 °), the closing paper is pulled. Abbreviated to 9b -Shaped cutting line (slit) is formed, thereby forming an opening corresponding to the opening 4b of the container body 5b, and the developer 6b is easily lowered and supplied into the developing chamber.

The cartridge as described above may be commonly referred to as a process cartridge or a process unit, as shown in FIGS. That is, the cartridge 5c having the same structure as the cartridge 1b is used as the photosensitive drum 2 of the copying machine.
c, the developing device 35c, and the cleaning device are integrated, and when the string body is pulled toward you, the closing member 9c
A cutting line is formed on the sheet, and the stored developer is supplied to the phenomenon device 35c. When the life of the supplied developer reaches the end, the life of the photoconductor drum 2c is also adjusted.
It is used together with the developing device 35c and the cleaning device 34c for processing.

(F) Effect of the device According to this device, the developer discharging opening can be formed in the closing member only by peeling the thin string body instead of peeling the closing member itself. In doing so, it is possible to almost prevent the toner from scattering to the surroundings.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an explanatory view for explaining an operating method of the embodiment, FIG. 3 is a view corresponding to FIG. 1 of another embodiment, and FIG. FIG. 5 is an exploded perspective view of still another embodiment, FIG. 5 is an exploded perspective view thereof, and FIG. 6 is a structural explanatory view showing an example of use in a copying machine having substantially the same structure as the embodiment of FIG. FIG. 7 is an enlarged view of a main part of the explanatory diagram. 1 ... Developer storage cartridge, 2 ... developer inlet, 3 ... body wall, 4 ... long hole, 5 ... container body, 6 ... developer, 7 ... lid, 9 ... closed Paper, 10 ... Tip, 17 ... Developer discharge opening, 18 ... Operation thread.

Claims (3)

[Scope of utility model registration request] 1. A container main body for accommodating a developer, a closing member for closing an opening formed in the container main body, and a thin string-like member attached to the closing member and pulling its tip toward you to form a closing member. A developer accommodating cartridge comprising a string body, which is capable of forming a developer discharge opening through which a cutting line is formed and through which an developer can be discharged through an opening. 2. The developer accommodating cartridge according to claim 1, wherein the cutting line has a substantially U-shape corresponding to each side of the opening of the container body. 3. The container body has a rectangular opening, and the cutting line has a straight line portion corresponding to the longitudinal centerline of the opening,
2. The developer accommodating cartridge according to claim 1, wherein the developer model storage cartridge is formed of radial straight line portions extending from respective ends of the straight line portion to opposite short side ends of the opening.