JPS6114849B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composition for a fluid moving agitator.

As used herein, the term fluid includes fluids and powders.

A fluid moving stirring device is known in which a plurality of flat plates are fixed on a shaft at an angle with respect to the shaft, and are rotated around the axis to stir or move and convey the fluid. ing. FIGS. 1 and 2 each show a typical example of such a fluid moving agitator. In the example shown in FIG. 1, a plurality of flat plates 2-1, 2-2, ......, 2-i, ...... are formed into bent pieces, inclined to the axis 1, and screwed. ing. In the example shown in FIG. 2, the flat plates 3-1, 3-2, etc. are formed into an elliptical shape and integrally formed with a short hollow cylinder. The flat plate is inclined with respect to the hollow cylinder, and by fitting and screwing these onto the shaft 1, a fluid stirring device is constructed.

By installing these fluid stirring devices in the fluid and rotating them around the shaft 1, the fluid can be stirred by the flat plates 2-i, 3-1, 3-2, etc. can be stirred.

In order to manufacture such a fluid stirring device, each flat plate must be formed into a predetermined shape and fixed one by one to the shaft while determining the position, which makes the manufacturing process cumbersome. It has the disadvantage of being.

It also has the function of transporting fluids in the axial direction. When manufacturing a fluid moving device, a plurality of flat plates must be arranged in a spiral manner around the shaft. Using a flat plate 2-i as shown in FIG.
The production of such a fluid moving device requires more troublesome work than the production of the fluid stirring device described above, and it is difficult to make such a fluid moving device by using a flat plate 3-1 as shown in Fig. 2. cannot constitute the fluid moving device described above.

An object of the present invention is to provide a fluid stirring device and a fluid moving device that can be easily configured, and that are easy to manufacture.
It is an object of the present invention to provide a composition for a fluid moving agitator that is inexpensive to manufacture.

Hereinafter, the present invention will be described by way of examples with reference to the drawings.

FIG. 3 shows an example of the shape of a fluid stirring tool constructed from the fluid moving stirring tool component according to the present invention. The fluid stirring tool 10 is functionally the same as the fluid stirring tool shown in FIG.

The shape of the fluid moving agitator component constituting the fluid agitator 10 is specified by the shape of the fluid agitator 10, so below, first, the shape of the fluid agitator 10 will be explained. .

The fluid stirring tool 10 includes a shaft portion 11 and a plurality of flat plate portions 12. The shaft portion 11 has a hollow cylinder shape, and the flat plate portion 12 has the same oval shape. The plurality of plane plate parts 12 are parallel to each other, and further, the directions of their long axes are parallel to each other and are inclined with respect to the shaft part 11. This can also be expressed as follows. That is, the normal line of the plane plate part 12 to the axis of the shaft part 11 is inclined with respect to the axis line and parallel to each other, and the long axis of the plane plate part 12 is a specific line that includes the normal line and the axis line. is on the plane of Here, the plane plate part 1
2, the normal line to the axis refers to the normal line erected to the plane at the intersection of the plane determined by the plane plate part 12 and the axis.

The planar plate portions 12 are equally spaced from each other. Moreover, the inclination of the plane plate part 12 with respect to the axis is determined so that the orthogonal projection of the plane plate part 12 onto a plane perpendicular to the axis becomes circular.

Figure 4 shows a fluid stirring device 1 as shown in Figure 3.
1 shows a component for a fluid moving agitator (hereinafter referred to as a component) that constitutes 0.

The components 10a and 10b have the shape shown in FIG. 3 divided into two by a plane including the axis of the shaft portion 11 and the long axis of the flat plate portion 12, and are each integrally molded using a mold. be done. The material may be metal or resin.

5 and 5 show a plan view and a right side view of the structure 10a, and FIG. 5 shows a plan view and a right side view of the structure 10b.

The shape of the components 10a, 10b is selected as described above because, in the case of the two-part shape shown in FIG. 3, the components 10a, 10b obtained by the above division are
This is because the shape of 10b is the easiest to cut out. In the case of two or more divisions, a shape that can be easily cut out can be obtained by first dividing it along the two-part plane, and then dividing the divided pieces along a plane that intersects the two-part plane and passes through the axis. The number of divisions is 2 or 4
Division would be practical.

The components 10a and 10b can be manufactured very easily using molds, and by combining them, the shape shown in FIG. 3 can be obtained, so it is the same as the fluid stirring tool shown in FIG. This means that a functional fluid stirring tool can be manufactured much more easily than with conventional manufacturing methods.

In FIG. 4, holes indicated by symbols VH1 and VH2 are long holes for screwing. Component 10a,
To construct a fluid stirring tool using 10b,
These are combined into the shape shown in FIG. 3, a cylindrical support shaft is fitted into the shaft part, and the components 10a, All you need to do is screw 10b. The position of the structure in the axial direction can be finely adjusted depending on the size of the elongated hole VH1.

As shown in FIG. 6, when two components 10a are combined, a fluid moving tool having the function of moving and conveying a fluid in the axial direction can be constructed.

FIG. 6 is a plan view and a right side view.
Of course, combining two components 10a means combining the component 10a and other components of the same shape, and the other components in the figure are designated by the reference numeral 10a. , and the component 10a. In addition, in the figure, SL indicates a cylindrical support shaft, and symbol V indicates a screw.

Furthermore, as shown in FIG. 7, if the fluid moving device made of the combination of components 10a and the fluid moving device made of the combination of components 10b are connected in a line, the fluid can be moved with respect to the connecting portion. , it is possible to construct a fluid moving device that has the function of being able to move and convey in mutually opposite directions.

FIG. 8 shows an example of the use of a fluid moving device and a fluid stirring device constructed from the composition according to the present invention.
That is, the figure shows a well-known magnetic brush developing device in an electrophotographic reproduction machine. In the figure, numeral 20 is a photoreceptor, numeral 21 is a developer tank, numeral 22 is a pumping roller, numeral 23 is a magnetic brush roller, numeral 24 is a separator, numeral 25 is a developer stirring device, and numeral 26 is a developer moving device. are shown respectively.

The developer D is pumped up from the bottom of the developer tank 21 by the pumping roller 22 and supplied to the magnetic brush roller 23 . The magnetic brush roller 23 transports the supplied developer D, supplies it to the electrostatic latent image formed on the photoreceptor 20 in the developing section, and visualizes the electrostatic latent image. The developer D that has contributed to the development is separated from the magnetic brush roller 23 by the separator 24 and collected into the developer tank 21 .

The developer stirring tool 25 is constituted by a combination of components 10a and 10b, and stirs the developer D falling from the separator 24 into the developer tank 21 by rotating in the direction of the arrow.

The developer moving device 26 is configured as shown in FIG. 7, and by rotating in the direction of the arrow, it moves to the center of the developer tank 21, that is, the center of the magnetic brush roller 23. The developer D is moved and collected toward the area where the image is to be removed.

The base shape that defines the shape of the composition is
The shape is not limited to that shown in FIG. For example, the shapes of the flat plate parts do not all have to be the same,
They do not need to be parallel to each other, nor do they need to be equally spaced. Further, the shape of the shaft portion does not need to be a hollow cylinder.

However, since the composition according to the present invention is molded using a mold, the above-mentioned original shape has
Naturally, there are limits. In other words, in order for a component to be molded using a mold, the original shape must be
The shape of the plurality of plane plates relative to the axis must be such that the normals of these plane plates to the axis lie on a certain coplanar plane together with the axis. With such a shape, it is always possible to divide the pieces into shapes that are easy to die out.

The shape and size of the flat plates, the angle of inclination with respect to the axis, the distance between the flat plates, etc. may be freely set according to the purpose within the above-mentioned limits.

In addition, there may be many types of components,
A fluid moving device, a stirring device, or a fluid moving and stirring device may be configured by combining different types of components.

[Brief explanation of the drawing]

1 and 2 are perspective views showing two typical examples of conventionally known fluid stirring tools, and FIG. 3 shows one shape of a fluid stirring tool constructed from the composition according to the present invention. FIG. 4 is a perspective view showing two examples of the structure according to the present invention according to their shapes; FIG. 5 is a plan view and a right side view of the structure shown in FIG. 6 is a plan view and a right side view showing an example of a fluid moving device constructed using the composition according to the present invention, and FIG. FIG. 8 is a plan view showing an example of the present invention, and FIG. 8 is a side view showing an example of the use of a fluid stirring device and a fluid moving device constructed of the composition of the present invention. 11...Shaft part, 12...Plane plate part, 10a, 1
0b...Component, SL...Cylinder-shaped support shaft.

Claims (1)

[Claims] 1. A plurality of flat plates on one axis,
The shape of the piece to be divided obtained by dividing the shape formed by arranging the normal lines so that they are all on the same plane into multiple partial shapes that are easy to die out by a plane passing through the axis. A component for a fluid moving stirring device that is integrally molded using a mold. 2. The structure for a fluid moving stirring device according to claim 1, wherein the plurality of flat plates have the same shape and are arranged at equal intervals on an axis. 3. The structure for a fluid moving stirring device according to claim 1 or 2, characterized in that the plurality of flat plates are arranged at the same angle of inclination with respect to the axis. 4. The composition for a fluid moving agitator according to claim 1, 2, or 3, wherein the plurality of flat plates have an elliptical shape. 5 In claim 2, the shape of the plurality of plane plates is elliptical, and these plane plates are
A composition for a fluid moving stirring device, characterized in that it is arranged on an axis so that the projection onto a plane perpendicular to the axis is circular. 6. The composition for a fluid moving stirring device according to claim 5, characterized in that the plurality of flat plates are parallel to each other. 7 In claim 1 or 2 or 3 or 4 or 5 or 6, multiple divisions are defined as two or more divisions based on the specific same plane.
A composition for a fluid moving stirring device, characterized in that it is divided into four parts, or further divided into four parts by a second plane orthogonal to the above-mentioned plane and the above-mentioned plane. 8 In claim 1 or 2 or 3 or 4 or 5 or 6 or 7, the shaft is hollow cylindrical, and the structure is a cylindrical support shaft. A composition for a fluid moving stirring device, characterized in that it can be fastened with a screw. 9. The structure for a fluid moving agitator according to claim 8, wherein the screw hole is an elongated hole elongated in the axial direction.