JP2000238864A - Powder filling container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder filling container which can prevent a filler object from leaking, and at the same time, is excellent in recycling of the container, and of which the manufacture is easy as well. SOLUTION: This powder filling container in which a powder is filled, is equipped with a container main body 1 constituting a plurality of container sections which are divided at least into two, and a lid body 2, elastic body particles 1b and 2b which are respectively provided on bonding surfaces 1a and 2a being bonded to each other of the plurality of container sections, and a screw member 3 which detachably press-fixes the bonding surfaces 1a and 2a on which the elastic body particles 1b and 2b are provided, to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder filling container for filling powder such as a toner and a carrier, and more particularly, to preventing powder charged in at least two divided powder containers from leaking from a divided surface. The present invention relates to a powder filling container in which the prevention is performed.

[0002]

2. Description of the Related Art In an image forming apparatus such as a copying machine, a facsimile, a printer, etc., a developer accommodating container is provided as a means for supplying a developer to a developing section. Conventionally, as shown in FIG. 11, such a developer accommodating container has a projection provided on a joint surface of a container main body and a joint surface of a lid body welded or bonded by heat welding such as ultrasonic welding. It is configured.

As shown in FIG. 10, a sealing member made of a band-like elastic material such as malt prene, felt, packing or the like is sandwiched between the container body and the lid and joined. It is constituted by.

[0004]

However, when a sealing material having elasticity is sandwiched between the container body and the lid, the band-shaped sealing material is bonded to the joining surface with a double-sided tape or the like. If the bonding or the fitting is misaligned, the subsequent correction is difficult and the bonding skill is required, and the number of bonding steps is large. Furthermore, when the container body and the lid are reused, there is a problem that the sealing material such as malt prene and felt cannot be reused due to damage or dirt, and is discarded. Further, when the container is fixed by heat welding or bonding, there is a problem that the container cannot be disassembled and reused, and is discarded.

Accordingly, an object of the present invention is to provide a powder-filled container which can prevent leakage of the filling material, is excellent in reusing the container, and is easy to manufacture.

[0006]

According to a first aspect of the present invention, there is provided a powder filling container for filling a powder, comprising: a plurality of container portions divided into at least two parts; A powder-filled container comprising: elastic particles provided on joint surfaces to be joined to each other; and crimping means for detachably attaching the joint surfaces provided with the elastic particles to each other. According to this configuration, the leakage of the filler can be prevented by the elastic particles, the container is excellent in reuse, and the production is easy.

According to a second aspect of the present invention, in the powder filled container according to the first aspect, the elastic particles are bonded to a joint surface. With this configuration, attachment of the elastic particles is easy.

According to a third aspect of the present invention, in the powder filling container according to the first aspect, the joint surface has a flexible weir. With this configuration, even when the distance between the container body and the lid is large, the container can be hermetically sealed.

According to a fourth aspect of the present invention, in a powder filling container for filling powder, at least one of a plurality of divided container portions and a joining surface of the plurality of container portions joined to each other is provided. Powder filling, comprising: a flexible weir; and crimping means for removably crimping the pair of joining surfaces to each other, wherein the flexible weir is configured to deform in and out of the container. Container. In this configuration, the leakage of the filler can be prevented by the flexible weir,
Excellent container reuse and easy manufacturing.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are diagrams showing a developer-filled container according to a first embodiment of the present invention, wherein FIG. 1A is a perspective view, FIG. 1B is a front view, and FIG. 1C is an enlarged sectional view of a joint. 2A and 2B are cross-sectional views illustrating a joint of the developer-filled container in FIG. 1, in which FIG. 2A is before contact of the joint and FIG.

As shown in FIGS. 1 (A), 1 (B) and 1 (C), the developer-filled container according to the first embodiment is, in this embodiment, divided into two parts, that is, a container body 1. And the lid 2, the joint surface 1 a of the container body 1 and the joint surface 2 of the lid 2
and a screw member 3 which is a crimping means for detachably crimping a. It should be noted that a clip or the like can be used other than the screw member 3 as the crimping means.

As shown in FIG. 1 (C), the developer-filled container further has elastic particles 1b adhered to the joint surface 1a of the container body 1 via an adhesive, and the joint surface 2a of the lid 2 Also, the elastic particles 2b are bonded via an adhesive.

In the developer-filled container shown in FIG. 1, after the powder such as toner and carrier is filled in the container main body 1, the container shown in FIG.
As shown in (A), the joint surface 1a of the container body 1 and the lid 2
When the container body 1 and the lid 2 are pressed toward the joint surface in a state where the joint surface 2a is opposed to the joint surface 2a, the elastic particles 1b and 2b are deformed as shown in FIG. Adhere,
The developer-filled container is sealed, and the container body 1 and the lid 2 are connected to each other with the screw member 3 to maintain the close contact state. As in this embodiment, the flat joining surfaces 1a,
The one in which the elastic particles 1b and 2b are bonded to 2a is used when the gap between the container body 1 and the lid 2 is small.

According to the developer-filled container of the first embodiment, since the elastic particles 1b and 2b are adhered to the joint,
Compared with the case where a conventional band-shaped sealing material is adhered, there is no displacement and no position correction is required, so that manufacturing is easy.

When the container body 1 and the lid 2 are reused, no sealing material such as maltprene or felt is used, so that there is an advantage that the reuse is easy and the amount of waste is extremely small.

Further, by removing the screw member 3, the developer-filled container can be disassembled and reused, and will not be discarded.

FIGS. 3A and 3B are views showing a developer-filled container according to a second embodiment of the present invention, wherein FIG. 3A is a front view and FIG.
Is a cross-sectional view of the joint, and FIG. 4C is an enlarged cross-sectional view of the flexible weir.

As shown in FIG. 3A, the developer-filled container according to the second embodiment comprises a container body 21 and a lid 22.
And the joining surface 21a of the container body 21 and the joining surface 2 of the lid 22
Screw member 2 serving as a crimping means for detachably crimping 2a
3 is provided.

As shown in FIG. 3B, the developer-filled container is further provided with a flexible weir 2 on a joint surface 21 a of the container body 21.
1c is provided. This flexible weir 21c is shown in FIG.
As shown in (C), the tip surface 21d is formed so as to be inclined so as to face outward. Therefore, when the flexible weir 21c is pressed against the joint surface 22a of the lid 22, the flexible weir 21c is deformed toward the inside of the container and hermetically seals the inside of the container. Since the flexible weir 21c is deformed toward the inside of the container in this manner, the height of the flexible weir 21c can be increased without the flexible weir 21c protruding outside the container. As in this embodiment, the flexible dam 21c is formed on the joint surface 21a.
It is used when the gap with 2 is large.

According to the developer-filled container of the second embodiment, since the flexible weir 21c is provided at the joint, the position is shifted as compared with the case where the conventional band-shaped sealing material is adhered. It is easy to manufacture because there is no need to correct the position.

When the container body 21 and the lid 22 are reused,
Since no sealing material such as moltoprene, felt or the like is used, there is an advantage that reuse is easy and wastes can be extremely reduced.

Further, by removing the screw member 23, the developer filled container can be disassembled and reused, and will not be discarded.

FIGS. 4A and 4B are views showing a container main body of a developer filling container according to a third embodiment of the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a side view. 5A and 5B are views showing a joint portion of the developer-filled container of FIG. 4, wherein FIG. 5A shows a state before the flexible weir contacts the lid, FIG. 5B shows a state immediately after the contact, and FIG. Note that, in the third embodiment, the shape of the lid is the same as that of the first embodiment.

As shown in FIGS. 4A, 4B and 5,
The developer-filled container according to the third embodiment includes a container body 31.
And a cover 2 and crimping means (not shown) for detachably pressing the joint surface of the container body 31 and the joint surface of the cover 2. As this crimping means, for example, the same one as the screw member shown in FIG. 1 can be used.

This developer filled container further includes a container body 3
A flexible weir 31c is provided on the joint surface of the first member. As shown in FIGS. 4 and 5, the flexible weir 31c is formed so as to be inclined such that the distal end face 31d faces inward. Therefore, as will be described later, when the flexible weir 31c is pressed against the joint surface of the lid 2, the flexible weir 31c is elastically deformed toward the outside of the container and seals the inside of the container. As described above, since the flexible weir 31c can be deformed toward the outside of the container, there is an advantage that the inside of the container can be maintained at a negative pressure, and the adhesion can be improved. However, in this case, it is desirable that the height of the flexible weir 31c be a length that does not protrude outside the container.

In the developer-filled container shown in FIGS. 4 and 5, after the container body is filled with powder such as toner and carrier, the container shown in FIG.
As shown in FIG. 5A, when the joining surface of the container body 31 and the joining surface of the lid 2 are brought into contact with each other as shown in FIG. When it comes into contact with the joint surface of the body 2 and is pressurized as shown in FIG.
1c is elastically deformed toward the outside of the container, and comes into close contact with this elastic force. By bringing the container main body 31 and the lid 2 into close contact with each other in this manner, the developer-filled container is closed, and the container main body and the lid can be kept in close contact by connecting the container main body and the lid with a screw member.

According to the developer-filled container of the third embodiment, the flexible weir 31c is provided at the joint, so that the position is shifted as compared with the case where the conventional band-shaped sealing material is bonded. It is easy to manufacture because there is no need to correct the position.

When the container body 31 and the lid 2 are reused, no sealing material such as maltprene or felt is used, so that there is an advantage that reuse is easy and wastes can be extremely reduced.

Further, by removing the screw member, the developer filled container can be disassembled and reused, and will not be discarded.

FIG. 6 is a view showing a modification of the flexible weir.
As shown in FIG. 6 (A), a flexible weir 61c is provided at the inner end of the joining surface of the container body 61, and an inclined surface 62c is formed at the inner end of the joining surface of the lid 62. Body 62
And the area of contact with the metal can be increased, and high hermeticity can be obtained.

As shown in FIG. 6B, a concave portion 6 is formed in the lid 64 corresponding to the flexible weir 63c of the container body 63.
By forming 4c, it is possible to prevent the flexible weir 63c from protruding into and out of the container.

Further, as shown in FIG.
5c is composed of a separate member from the container body 65,
By fitting into the concave portion 65d, the flexible weir 65c can be made of a material different from that of the container body 65, and an optimal elastic body can be used.

FIG. 7 is a view showing another modification of the flexible weir. As shown in FIG. 7A, the joining surface 7 of the container body 71
By providing the gradient θ1 on the upper surface of the flexible weir 71c provided in 1a, the deformation direction of the flexible weir 71c can be controlled as described above. That is, in the case of FIG. 7A, the flexible weir 71c can be deformed clockwise.

As shown in FIG. 7 (B), the deformation direction of the flexible weir 72c can also be controlled by forming the upper surface of the flexible weir 72c provided on the joint surface 72a of the container body 72 into an arc-shaped cross section. be able to. That is, in the case of FIG. 7B, the flexible weir 72c can be deformed clockwise.

As shown in FIG. 7 (C), the inner surface of a flexible weir 73c provided on the joint surface 73a of the container body 73 and the joint surface 73
a, the outer surface of the flexible weir 73c and the joint surface 73a.
By changing the angle of the flexible weir 73c
Can control the direction of deformation. That is, in the case of FIG. 7C, it can be deformed in a smaller angle, that is, clockwise. Further, as shown in FIG. 7 (E), by greatly changing the angle θ3 between the outer surface of the flexible weir 74c provided on the joint surface 74a of the container main body 74 and the joint surface 74a, it is possible to largely deform.

As shown in FIG. 7 (D), the upper surface of the flexible weir 72c is formed in an arc-shaped cross section, and the angle θ2 between the side opposite to the arc-shaped portion and the joining surface 72a is set to an acute angle. By doing so, the amount of deformation and the direction of deformation can be adjusted according to the material used.

FIG. 8 is a view showing another modification of the flexible weir. As shown in FIGS. 8A, 8B, and 8C, a flexible weir 71 provided on the joint surface of the container bodies 71, 73, and 61.
The joints may be formed by combining c, 73c, 61c and the elastic particles 1b. In FIG. 8A,
FIG. 8B shows the case where the flexible weir 73c and the elastic particle 1b of FIG. 7C are combined with the flexible weir 21c and the elastic particle 1b of the embodiment of FIG. FIG. 8C shows a case where the flexible weir 61c and the elastic particles 1b shown in FIG. 6A are combined. In this way, by combining the flexible weir and the elastic particles, a sufficient hermeticity can be maintained even if the gap between the container body and the lid is large. In addition, a flexible dam and elastic particles other than those exemplified in FIG. 8 can be combined.

FIG. 9 is an enlarged sectional view showing the structure of the elastic particles. As shown in FIG. 9A, the elastic particles 1b and 2b described above may have a solid structure.
As shown in (B), it may be hollow, and is appropriately selected depending on the material to be used or the like so as to obtain a desired elastic force. Further, the same elastic particles on the container body side and the same elastic particles on the lid body may be used, or different elastic particles may be used.

In the above embodiment, the case where the flexible weir is provided on the joint surface on the container body side has been described. However, the flexible weir may be provided on the joint surface on the lid body side.

The present invention is not limited to the above embodiment. That is, various modifications can be made without departing from the gist of the present invention.

[0041]

As described above, according to the first aspect of the present invention, in a powder filling container for filling powder, a plurality of container portions divided into at least two parts, and the plurality of container portions are separated from each other. Since the elastic particles provided on the joining surfaces to be joined and the pressing means for detachably attaching the joining surfaces provided with the elastic particles to each other are provided, leakage of the filler can be prevented by the elastic particles. Excellent in container reuse and easy to manufacture.

According to the invention of claim 2, according to claim 1,
In the powder filled container described in (1), the elastic particles are adhered to the joint surface, so that the elastic particles can be easily attached.

According to the invention of claim 3, according to claim 1,
In the powder-filled container described in the above, since the joining surface has a flexible weir, it can be hermetically sealed even when the distance between the container body and the lid is large.

According to the fourth aspect of the present invention, in a powder filling container for filling powder, at least one of a plurality of divided container portions and a joining surface of the plurality of container portions joined to each other. A flexible weir provided with, and a crimping means for detachably crimping the pair of joining surfaces to each other,
Since the flexible weir is configured to be deformed toward the inside and outside of the container, leakage of the filling material can be prevented by the flexible weir, and the container is excellent in reuse and easy to manufacture.

[Brief description of the drawings]

FIGS. 1A and 1B are views showing a developer-filled container according to a first embodiment of the present invention, wherein FIG. 1A is a perspective view, FIG.
(C) is an enlarged sectional view of the joint.

FIGS. 2A and 2B are cross-sectional views showing a joint portion of the developer-filled container of FIG. 1, wherein FIG.

3A and 3B are views showing a developer-filled container according to a second embodiment of the present invention, wherein FIG. 3A is a front view, FIG. 3B is a cross-sectional view of a joint, and FIG. FIG.

4A and 4B are diagrams illustrating a container body of a developer-filled container according to a third embodiment of the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a side view.

5A and 5B are views showing a joint portion of the developer-filled container of FIG. 4, wherein FIG. 5A shows a state before the flexible weir contacts the lid, FIG. 5B shows a state immediately after the contact, and FIG. It is.

FIG. 6 is a view showing a modified example of a flexible weir.

FIG. 7 is a view showing another modification of the flexible weir.

FIG. 8 is a view showing another modification of the flexible weir.

FIG. 9 is an enlarged sectional view showing the structure of an elastic particle.

FIG. 10 is a view showing a conventional developer storage container.

FIG. 11 is a view showing another conventional developer storage container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid 1a Joining surface 2a Joining surface 1b Elastic particle 2b Elastic particle 3 Screw member (compression bonding means) 21c Flexible weir

Claims (4)

[Claims] 1. A powder filling container for filling powder,
A plurality of container parts divided into at least two parts, elastic particles respectively provided on joining surfaces of the plurality of container parts joined to each other, and crimping means for detachably joining the joining surfaces provided with the elastic particles to each other; A powder-filled container comprising: 2. The powder-filled container according to claim 1, wherein the elastic particles are adhered to a joint surface. 3. The powder-filled container according to claim 1, wherein the joining surface has a flexible weir. 4. A powder filling container for filling powder,
A plurality of container parts divided into at least two parts, a flexible weir provided on at least one of joining surfaces of the plurality of container parts joined to each other, and crimping means for detachably crimping the pair of joining surfaces to each other, The said flexible weir is comprised so that it may deform | transform toward the inside and outside of a container, The powder filling container characterized by the above-mentioned.