JP2006168844A - Conveyor belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyor belt having high travelling safety and high conveying ability, in regard to a looped conveyor belt to be combined with a pulley having a circular groove part in, at least, the bottom part cross section. <P>SOLUTION: This looped conveyor belt 1 is to be combined with the pulley 10 having a circular groove part in, at least, the bottom part cross section, and a lower surface 2 of the conveyor belt is structured to have a circular cross section to be housed in the groove part, and an upper part 3 thereof is structured to have a plane surface, and height h<SB>1</SB>from the lower part to the upper part is formed higher than depth h<SB>2</SB>of the groove part of the pulley. A flange part is extended from both side ends of an upper part of the plane, and the flange part is positioned over the upper end of the groove part of the pulley. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a conveyance belt used in a conveyance device for paper sheets, cards, coins and the like.

In a financial institution, a transport belt used to transport paper sheets (for example, banknotes), cards, coins, etc., is a round belt with a circular cross section or a flat belt with a flat transport surface. The Since the round belt travels in a state where the lower part is accommodated in a pulley having a groove having an arcuate cross section, the round belt is less likely to be detached from the pulley during traveling and has excellent traveling stability. However, many of the transported objects are flexible, have a round shape like coins, and exhibit unstable behavior such as coins overlapping during transport. For this reason, when conveying the said conveyed product with a round belt, there exist the following problems.
(I) Since the round belt is in line contact with the conveyed product and the force to press the conveyed item is weak, it is difficult to convey the conveyed item (for example, when the conveyed item is a coin, the coin is conveyed Hard to stay and easy to stay).
(II) When paper dust or wear powder generated from the conveyed product adheres to the belt, the frictional force of the belt is reduced, so that it becomes more difficult to convey.
(III) Since the pressure of the contact portion is high in line contact, the contact portion of the belt with the conveyed product is likely to be damaged, and the belt is easily cut by the progress of the damage.

On the other hand, the flat belt can be transported stably because the contact with the transported object is surface contact, but generally it is more difficult to travel more stably than the round belt, and meanders during traveling. There is a problem of coming off the pulley.
In Patent Document 1, at least one guide having a V-shaped cross section is provided along the longitudinal direction on the lower surface of the flat belt main body, and both sides of the guide have a high hardness and the remaining portions other than both sides have a low hardness two-layer structure. A conveyance belt with a V guide is described. According to this, the guide and the pulley having the guide groove are run in a fitted state, and therefore it is described that the meandering of the flat belt can be surely prevented.

  However, in general, the combination of the guide and the guide groove has a lower running stability than the combination of the round belt and the arc-shaped groove, and the regulation force for preventing the deviation of the belt is small. For this reason, when transporting an item that exhibits unstable behavior during transport, such as a coin, it is easy to apply a biased load to the belt, and the guide may come off the guide groove during transport, and the belt may come off the pulley. There is.

Japanese Patent Laid-Open No. 10-35845

  An object of the present invention is to provide a conveyance belt having high running stability and conveyance capability in a loop-shaped conveyance belt combined with a pulley having a groove having an arcuate bottom section at least.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have obtained a high running stability because the lower part having a predetermined shape is accommodated in the pulley groove part in the conveyor belt, and the upper surface. As a result, the present inventors have found a new finding that a high conveying ability can be obtained because of the flat surface.

That is, the conveyance belt in the present invention has the following configuration.
(1) A loop-shaped conveyor belt combined with a pulley having at least a bottom section with an arc-shaped groove, the lower section having an arc-shaped section so as to be accommodated in the groove, and the upper section having a flat surface And a height from the lower part to the upper part is higher than a depth of the pulley groove part.
(2) The conveyor belt according to (1), wherein the conveyor belt has both side portions each having a straight section between the upper plane and the lower section having a circular section.
(3) The conveyor belt according to (1) or (2), wherein a flange portion is extended from both upper ends of the flat surface, and the flange portion is located above the upper end of the pulley groove portion.
(4) The conveyor belt according to any one of (1) to (3), wherein a reinforcing core member is embedded in the belt near the upper plane.
(5) The transport belt according to any one of (1) to (4), wherein the upper flat surface is a rough surface.
(6) The conveyor belt according to (5), wherein the rough surface is a surface having a texture shape.
(7) The conveyor belt according to (5), wherein the rough surface is a surface provided with a lateral groove along a width direction of the belt.
(8) The conveyor belt according to (5), wherein the rough surface is a surface provided with vertical grooves along the longitudinal direction of the belt.
(9) The transport belt according to any one of (5) to (8), wherein the rough surface has a surface roughness R _{max of} 5 to 50 μm.

  According to said (1), since the lower part which has a defined shape is accommodated in the said pulley groove part, high driving | running | working stability is obtained and since an upper surface is made into a plane, there exists an effect that high conveyance capability is obtained. According to the above (2), since it is possible to suppress a decrease in running stability due to the inclination of the belt during running, the tilt of the carrying surface can be prevented and a more stable carrying ability can be obtained. According to said (3), since a predetermined flange part is extended in an upper plane, a conveyance surface becomes wide and higher conveyance capability is obtained. In addition, by holding the belt flange portion by the outer peripheral portion of the pulley, the inclination of the conveying surface is prevented and a more stable conveying ability is obtained. Furthermore, when the belt is tilted during traveling, the flange portion is in contact with the top of the pulley, so that the belt can be prevented from tilting, so that higher traveling stability and conveyance capability can be obtained. According to the above (4), since the predetermined core material for reinforcing the belt is embedded in the belt near the upper flat surface, when the belt is damaged, the progress of the damage is hindered by the core material. Thus, the durability of the belt can be improved. According to the above (5) to (9), since the upper flat surface is a predetermined rough surface, the frictional force of this flat surface is reduced even if paper dust or wear powder generated from the conveyed product adheres to the upper flat surface of the belt. Can be suppressed.

Hereinafter, the conveyance belt according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a cutaway perspective view showing a conveyor belt according to the present invention, and FIG. 2 is an enlarged sectional view of a main part showing a state in which this conveyor belt and a pulley having a groove having an arcuate bottom section are combined. . As shown in FIGS. 1 and 2, the lower portion 2 of the conveyor belt 1 is configured to have an arc shape in cross section so that the lower belt 2 is accommodated in a pulley 10 having a groove portion having an arc shape in cross section. By running the belt 1 in this state, high running stability can be obtained. Further, the upper surface 3 of the conveyor belt 1 has a flat surface (conveying surface), and the height h ₁ from the lower portion 2 to the upper portion 3 of the conveyor belt ₁ is the depth h of the groove portion of the pulley 10. Higher than _two . Thereby, a high conveyance capability is obtained.

  As the material of the conveyor belt 1, various known elastic materials that can be used as a conveyor belt can be used. For example, one or more of rubber, synthetic resin, thermoplastic elastomer, and the like can be used. . Examples of the rubber include natural rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, ethylene propylene rubber, chloroprene rubber, chlorinated polyethylene, epichlorohydrin rubber, nitrile rubber, acrylic rubber, urethane rubber, and H-NBR (hydrogenated nitrile butadiene). Rubber) and the like. Examples of the synthetic resin include polyurethane and polyvinyl chloride. Examples of the thermoplastic elastomer include polyester elastomers, polyamide elastomers, polyolefin elastomers, and the like.

  The method for manufacturing the conveyor belt 1 is not particularly limited. For example, a cylindrical belt is made of the above-described material, and the cylindrical belt is cut in the circumferential direction to form a square belt. 1 is polished so that the cross-section of the single side becomes an arc shape shown in FIGS. 1 and 2, the loop-shaped transport belt 1 can be manufactured. Alternatively, after producing a belt-like square belt, it may be manufactured by polishing the entire circumference of one side of the belt-like square belt and then joining both end portions of this belt. You may manufacture by shape | molding and joining the both ends of this belt.

  As shown in FIGS. 1 and 2, the conveyor belt 1 includes side portions 4 and 4 having a straight section between the upper portion 3 and the lower portion 2. As shown in FIG. 2, one of the side portions 4 and 4 enters the groove portion of the pulley 10, and the other protrudes above the upper end of the groove portion of the pulley 10. In addition, the pulley 10 is configured so that the cross section is linear between the bottom of the groove having an arcuate cross section and the upper end of the groove. In this state, the conveyor belt 1 and the pulley 10 are combined and the belt 1 is run. When the belt 1 is tilted during running, the side portions 4 and 4 of the belt 1 are placed on both side surfaces of the groove portion of the pulley 10. Since contact is made, the inclination of the belt is suppressed and the inclination of the conveying surface is also suppressed.

  FIG. 3A is a broken perspective view showing another conveyance belt of the present invention, and FIG. 3B is a broken perspective view showing still another conveyance belt of the present invention. As shown in FIGS. 3A and 3B, these conveyor belts 31 and 41 have shapes that expand from the lower portions 32 and 42 toward the upper portions 33 and 43. When the conveyance belt of the present invention has this shape, the conveyance surface can be made wider than the conveyance belt 1 shown in FIG. Since the configuration other than the above is the same as that of the above-described transport belt, the description thereof is omitted.

  FIG. 4 is a cutaway perspective view showing still another transport belt according to the present invention, and FIG. 5 is an enlarged cross-sectional view of the main part showing a state in which the transport belt and a pulley having a groove having an arcuate bottom section are combined. FIG. As shown in FIGS. 4 and 5, the conveyor belt 51 has flange portions 54, 54 extending from both side ends of an upper portion 53 of a plane (conveying surface). By providing the flange portions 54, 54, the conveying surface becomes wider than the conveying belt 1 shown in FIG. 1, and the conveying ability is further improved. The flange portions 54 and 54 are positioned above the upper end 11 of the groove portion of the pulley 10. As a result, when the belt 51 is tilted during traveling, the flange portions 54 and 54 are in contact with the upper portion of the pulley 10, so that the belt 51 can be prevented from tilting.

  The method for manufacturing the conveyor belt 51 is not particularly limited. For example, a square belt is produced in the same manner as the above-described conveyor belt, and one side and both side surfaces of the square belt are shown in cross section on one side and both side surfaces. 5, the loop-shaped conveying belt 51 can be manufactured by polishing so that both ends of the other surface have the flange portions shown in FIGS. Since the configuration other than the above is the same as that of the transport belt described above, the same reference numerals as those in FIG.

  FIG. 6 is an enlarged cross-sectional view of a main part showing still another transport belt of the present invention. As shown in FIG. 6, the conveyor belt 61 has a reinforcing core material 64, 64, 64, 64 embedded in the belt 61 close to the plane of the upper portion 63 in a manner extending in the longitudinal direction of the belt 61. Yes. Thereby, when a damage | wound enters into a belt, since progress of a damage | wound is prevented by this core material, durability of a belt improves.

The core material 64, ..., 64 is not particularly limited, and various known materials can be used. For example, Kevlar fiber, metal wire, polyester cord, nylon cord, glass cord, aramid, Examples include those in which rayon or the like is shaped like a thread or fiber. The shape of the core material is not particularly limited, and the above-described Kevlar fiber or the like may be a sheet (woven fabric) or a braided shape.
The number of core materials embedded in the belt 61 close to the plane of the upper part 63 is not particularly limited, and a material having strength and elongation may be selected in accordance with a necessary conveying force. The core members 64,..., 64 may be embedded in the belt 61 close to the plane of the upper portion 63 at equal intervals, or may be embedded so that either the central portion or both side edge portions are dense. Good. It should be noted that the method of embedding the core members 64,..., 64 in the belt 61 close to the plane of the upper portion 63 is not particularly limited, and can be embedded by various known methods. Moreover, you may provide this core material in an above described flange part (not shown).
Since the configuration other than the above is the same as that of the above-described transport belt, the same reference numerals as those in FIG.

The conveyor belt according to the present invention may have a rough upper surface (conveying surface). Thereby, even if the paper powder and abrasion powder which arise from a conveyed product adhere to the conveyance surface of a belt, it can suppress that the frictional force of this conveyance surface falls.
Examples of the rough surface include those shown in FIGS. Fig.7 (a) is a fracture | rupture perspective view which shows the conveyance belt which made the rough surface in this invention the surface which has a texture shape. As shown in FIG. 7 (a), the conveyor belt 71 transfers the texture using a mold having a texture to the flat surface of the upper portion 73, and the flat surface of the upper portion 73 has a rough surface having a texture shape. Is.
FIG. 7B is a cutaway perspective view showing a conveyor belt in which the rough surface in the present invention is a surface provided with lateral grooves along the width direction of the belt. As shown in FIG. 7B, the conveyor belt 81 is formed by roughening the plane of the upper portion 83 by providing a lateral groove along the width direction of the belt 81.
FIG.7 (c) is a fracture | rupture perspective view which shows the conveyance belt which made the rough surface in this invention the surface which provided the vertical groove along the longitudinal direction of the belt. As shown in FIG. 7C, the transport belt 91 is formed by roughening the flat surface of the upper portion 93 by providing vertical grooves along the longitudinal direction of the belt 91.
Examples of the shape of the horizontal groove and the vertical groove include a semicircle, a V-shape, a rectangle, and a trapezoid. Since the configuration other than the above is the same as that of the above-described transport belt, the description thereof is omitted.

The surface roughness of the rough surface in the present invention is preferably R _max 5 to 50 μm. Thereby, the fall of the frictional force of the conveyance surface which arises when the paper dust and abrasion powder which arise from a conveyed product adhere to the conveyance surface of a belt can be suppressed reliably. On the other hand, if the R _max is less than 5 μm, the frictional force on the conveying surface may be reduced, and if it exceeds 50 μm, the wear resistance of the conveying surface is reduced, which is not preferable.
The surface roughness R _max is a value obtained by measuring with a surface roughness meter, and conforms to “surface roughness—definition and indication” standardized in Japanese Industrial Standard JIS-B0601. .

  The transport belt of the present invention is used in a transport device that transports paper sheets (for example, banknotes), cards, coins, and the like in a financial institution, and can transport these transported objects reliably. In addition, the conveyance device in which the conveyance belt of the present invention is used is not limited to the above-described conveyance device, and may be used as a conveyance belt of a conveyance device such as a precision instrument, food, amusement machine, or machine tool. it can.

It is a fractured perspective view which shows the conveyance belt in this invention. It is an expanded sectional view of the principal part which shows the state which combined the conveyor belt and pulley which has a circular-arc-shaped groove part in the bottom part in this invention. (A) is a fracture | rupture perspective view which shows the other conveyance belt of this invention, (b) is a fracture | rupture perspective view which shows the further another conveyance belt of this invention. It is a fractured perspective view which shows the further another conveyance belt of this invention. It is an expanded sectional view of the principal part which shows the state which combined the further another conveying belt of this invention, and the pulley which has a groove part with circular arc-shaped bottom part cross sections. It is an expanded sectional view of the important section showing the other conveyance belt of the present invention. (A) is a fracture | rupture perspective view which shows the conveyance belt which comprised the rough surface in this invention by the surface which has a texture shape, (b) is a horizontal groove along the width direction of a belt in the rough surface in this invention. It is a fracture | rupture perspective view which shows the conveyance belt comprised by the surface which provided, and (c) is a fracture | rupture which shows the conveyance belt which comprised the rough surface in this invention in the surface which provided the vertical groove along the longitudinal direction of the belt. It is a perspective view.

Explanation of symbols

1, 31, 41, 51, 61, 71, 81, 91 Conveying belt 2, 32, 42 Lower part 3, 33, 43, 53, 63, 73, 83, 93 Upper part 10 Pulley 54 Flange part 64 Core material

Claims (9)

A loop-shaped conveyor belt combined with a pulley having at least a bottom cross-sectional arc-shaped groove,
The lower part is configured to have an arc shape so that the lower part is accommodated in the groove part, the upper part has a flat surface, and the height from the lower part to the upper part is higher than the depth of the pulley groove part. Conveyor belt.   The conveyance belt according to claim 1, wherein the conveyor belt has both side portions having a straight section in section between the upper plane and the lower section having a circular section.   The conveyor belt according to claim 1 or 2, wherein a flange portion is extended from both upper ends of the flat surface, and the flange portion is located above the upper end of the pulley groove portion.   The conveyor belt according to any one of claims 1 to 3, wherein a reinforcing core material is embedded in the belt near the upper plane.   The conveyance belt according to claim 1, wherein the upper flat surface is a rough surface.   The conveyor belt according to claim 5, wherein the rough surface is a surface having a texture shape.   6. The conveyor belt according to claim 5, wherein the rough surface is a surface provided with a lateral groove along a width direction of the belt.   The conveyor belt according to claim 5, wherein the rough surface is a surface provided with vertical grooves along a longitudinal direction of the belt. The conveyance belt according to claim 5, wherein the rough surface has a surface roughness R _{max of} 5 to 50 μm.

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