JPH0680269A - Paper sheet conveying roller and separating plate - Google Patents

Abstract

PURPOSE:To obtain a roller which has a necessary hardness and an improved antifriction property, by covering the surface of a foaming body made in a specific hardness by converting its foaming magnification, with an antifriction rubber. CONSTITUTION:On the surface of a foaming body 3 made in a specific hardness by converting its foaming magnification, an antifriction rubber 4 is adhered thinly or fitting-adhered to form a paper sheets conveying roller 1 and a separating plate 2. The separating plate 2 is made by foaming a polyurethan in about 1.5 times, for example, it is cut in a plate form, and an urethane rubber having an antifriction property is weakened with toluene or the like, and attached 0.1 to 2mm to the uneven parts of the surface. After that, a heating is applied to vulcanize so as to smooth the surface. And urethane rubber sheets with an antifriction property are stuck with an adhesive, an adhesive tape 5, or the like. Consequently, it is unnecessary to give the antifriction property to the whole body of the foaming body 3, and a specific hardness of conveying roller 1 and a rubber separating plate 2 can be provided easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet conveying roller and a separating plate.

[0002]

2. Description of the Related Art The components for separating standard paper and banknotes are
When a roller and rubber plate (separation plate) are combined, paper is conveyed by the roller, and when two or more sheets are sent, a mechanism is used to stop the sheet by the frictional force of the rubber plate so that only one sheet passes. Has become.

[0003]

For the purpose of the mechanism for carrying and separating these paper sheets, the rollers and the separating plates are required to have a rubber having a low hardness to a high hardness depending on the paper quality and the mechanism. for that reason,
It was necessary to mix the rubber of the roller and the separating plate for each hardness. That is, the above-mentioned conventional technique has the following problems.

(1) The rubber used for the roller and the separating plate must have a low to high hardness compounding due to the nature of the paper sheet and the mechanism for conveying and separating the paper sheet.

(2) It is said that rubber having a particularly low hardness generally wears more than rubber having a high hardness due to contact with paper. Further, the type of low hardness rubber is limited.

(3) Since the gap between the roller and the rubber plate needs to be finely adjusted, a soft and highly elastic material is required. Generally, a foam (sponge) is considered. However, when the paper sheets are rubbed, the foam is easily worn.

(4) At the mechanical portion for separating the paper sheets, the paper is rubbed and the paper becomes powdery and adheres to the surface of the roller or the rubber plate. Therefore, the frictional force of the rollers and the rubber plate is reduced, and the separating mechanism for the paper sheets is no longer fulfilled.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a paper sheet conveying roller and a separating plate which have hardness that is easily required and whose abrasion resistance can be improved. To do.

[0009]

[Means for Solving the Problems] The above object is to provide a foam body in which a roller and a separation plate are made to have a predetermined hardness by changing a foaming ratio, and an abrasion resistant rubber provided on the surface of the foam body. It is achieved by forming with.

[0010]

Since the above means is provided, it has abrasion resistance and the required hardness can be easily obtained.

[0011]

EXAMPLES Next, the present invention will be specifically described by way of examples.

[Embodiment 1] FIG. 1 shows an embodiment of the present invention. In this embodiment, the sheet conveying roller 1 and the separating plate 2 used in the depositing / dispensing machine of the OA equipment or the automated teller machine are made into a foamed body 3 having a predetermined hardness by changing the foaming ratio, and It was formed of the abrasion resistant rubber 4 provided on the surface of the foam 3. By doing this,
A paper sheet conveyance roller 1 and a separation plate 2 which have abrasion resistance and can easily obtain the required hardness, have the required hardness easily, and have improved abrasion resistance. Obtainable.

That is, as shown in FIG. 1A, the carrying roller 1 is provided with the abrasion resistant rubber 4 on the surface of the foam 3, but the abrasion resistant rubber 4 is thin on the surface of the foam 3. Adhered or embedded.

As shown in FIGS. 2B and 2C, the separating plate 2 is made by foaming polyurethane rubber about 1.5 times when manufacturing the rubber separating plate 2 having a rubber hardness of 60 °, for example. , Rubber hardness 40 to 60 °. This is cut into a plate shape, urethane rubber of a compound having abrasion resistance is diluted with a solvent such as toluene, and 0.1 to 2 mm is attached to the uneven portion.
After that, heat is applied to vulcanize and smooth the surface (Fig. (B)).
reference). Further, a urethane rubber sheet having abrasion resistance is attached to the foam 3 with an adhesive or an adhesive tape 5 or the like (see FIG. 3C).

By doing so, it is not necessary for the entire foam 3 to have abrasion resistance, and it is sufficient for only the surface to have abrasion resistance, and the conveyance roller 1 and the rubber separating plate 2 having a predetermined hardness can be easily formed. Can be obtained.

As described above, according to this embodiment, the following effects can be obtained.

(1) The rubber compound having abrasion resistance can be unified. The foam has the same basic composition, but a predetermined hardness can be obtained by changing the magnification.

(2) When the foam is cut, since it has irregularities, the adhesion of the adhesive or the rubber having abrasion resistance enters the recesses, and the adhesion strength with the foam increases.

[Embodiment 2] FIG. 2 shows another embodiment of the conveying roller of the present invention. In this embodiment, the foam 3a
A cavity 6 formed concentrically by a punching machine or extrusion was provided in the. As described above, the abrasion resistant rubber 4 was provided on the surface of the foamed body 3a provided with the cavity 6 to form the conveying roller 1a. In this case as well, it is possible to obtain the same effects as those of the above-described transport roller.

[Embodiment 3] FIG. 3 shows another embodiment of the separating plate of the present invention. In this embodiment, the abrasion-resistant rubber 4 having an uneven surface is formed. That is, abrasion-resistant urethane rubber is diluted with a solvent such as toluene and thinly attached to the surface of the foam 3. After that, it is vulcanized by applying heat or the like, and the separation plate 2a having an uneven surface.
Was formed. In this case, the paper is rubbed and the powdered paper powder enters the concave portion and holds the frictional force at the convex portion, so that the reduction of the frictional force is smaller than that of the above-mentioned separation plate.

[Embodiment 4] FIG. 4 shows still another embodiment of the conveying roller of the present invention. In this example, similarly to the above-mentioned separation plate, the conveyance roller 1b having the abrasion-resistant rubber 4 having irregularities on its surface was formed. In this case as well, it is possible to obtain the same effects as the above case.

The foams in the above-mentioned examples are made to have a predetermined hardness by foaming rubber (polyurethane rubber, ethylene propylene rubber, chloroprene rubber) or resin (polyethylene, vinyl chloride, etc.) with a foaming ratio of 1.1 to 50 times. To Polyurethane rubber, ethylene propylene rubber or the like is attached to this surface as rubber having abrasion resistance.

[0023]

As described above, according to the present invention, the roller and the separating plate are made of a foamed body having a predetermined hardness by changing the foaming ratio, and an abrasion resistant rubber provided on the surface of the foamed body. Since it is formed by using, the paper sheet conveying roller has abrasion resistance and easily obtains the required hardness, has the easily required hardness, and has improved abrasion resistance. And a separating plate can be obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment of a sheet conveying roller and a separating plate of the present invention, (a) is a vertical sectional side view of the conveying roller,
(B), (c) is a vertical side view of a separation plate.

FIG. 2 is a vertical sectional side view of another embodiment of the paper sheet transporting roller and the transporting roller of the separating plate of the present invention.

FIG. 3 is a vertical cross-sectional side view of another embodiment of the sheet conveying roller and the separating plate of the separating plate of the present invention.

FIG. 4 is a perspective view of still another embodiment of the paper sheet transporting roller and the transporting roller of the separating plate of the present invention.

[Explanation of symbols]

 1, 1a, 1b Conveying rollers 2, 2a Separation plate 3, 3a Foam 4 Abrasion resistant rubber

Claims (4)

[Claims] 1. A paper sheet conveying roller used in an OA device or a depositing / dispensing machine of an automatic teller machine, the roller having a foaming ratio changed to a predetermined hardness, and this foaming. A paper sheet conveyance roller, which is formed of a wear resistant rubber provided on a surface of a body. 2. The conveying roller, wherein the abrasion-resistant rubber is used to fill up irregularities on the surface of the foam so that the surface becomes smooth or the surface becomes irregular. The paper sheet conveying roller according to claim 1. 3. A paper sheet separating plate used in an OA device or a depositing / dispensing machine of an automatic teller machine, wherein the paper sheet separating plate has a foaming ratio that is changed to a predetermined hardness. A paper sheet separating plate, which is formed of an abrasion resistant rubber provided on the surface of the foam. 4. The paper sheet separating plate is filled with the abrasion resistant rubber to fill the irregularities on the surface of the foam to make the surface smooth or to make the surface irregular. The paper sheet separating plate according to claim 3, which is a sheet.