JP3050375U - Conveyor belt - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the gripping force between a belt main body and a rubber band, to improve the tear resistance of the rubber band without damaging the root vegetables such as carrots and radishes, and to increase the service life. An object of the present invention is to provide a conveyor belt used for a crop harvester. SOLUTION: A crop harvester using a set of belts 2 having a structure in which a rubber band 5 is vulcanized and bonded to a core body 4 or a belt main body 3 in which a core body is embedded, in a state where the rubber bands 5 are in contact with each other. The rubber belt 5 is a foam 13 having at least two convex portions 6.

Description

[Detailed description of the invention] [Technical field to which the invention belongs]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a conveyor belt used for a vegetable harvester such as root vegetables such as carrots, radishes, and spinach, and more specifically, a set of crops to be harvested, wherein a rubber band having a corrugated surface is attached to the back of the belt. The present invention relates to a transport belt used for a crop harvesting machine for carrots or the like, in which the belt is wound around a pulley in a state where the convex portions of the rubber bands are in contact with each other.

[0002]

[Prior art]

 Conventional transport belts for holding and moving the leaves of agricultural products have a structure in which a cushion body having a corrugated surface is attached to a belt body in which a core wire is embedded. This set of belts is wound and arranged with the cushion bodies facing each other and mounted on a reaper or harvester. The leaves of crops such as carrots are sandwiched between the opposing cushions, extracted from the soil, and transported. Here, a soft sponge elastic body was used to avoid damaging the crops being transported.

[0003] For example, Japanese Patent Publication No. Sho 59-21299 discloses that a sponge strip is placed in a straight line in order to prevent peeling at an adhesive connection part even when repeatedly subjected to a bending operation after prolonged use. There is disclosed a belt in which sponge strips are connected so that a compression internal stress acts in the circumferential direction of the belt near the outer peripheral surface of the connection point.

[0004]

[Problems to be solved by the invention]

 However, in the conventional belt, since the sponge belt is used in a state of being in close contact with the entire surface, for example, when the ginseng leaves are conveyed while being sandwiched between the opposing cushions, the clamping force of the conveyed material is insufficient, The conveyed product sometimes dropped. Also, when the conveyed article was wet, the holding force was further reduced.

A major problem is that the surface of the sponge band is worn out early, and water enters from a site where the sponge band is severely worn and destroyed, causing the sponge band to expand and form a gap between the sponge band and the belt body. A problem of early peeling at the interface occurred. Furthermore, when the root vegetables such as carrots and radishes were pinched and transported, sponges were sometimes chipped due to biting of stones and mud.

The present invention solves such a problem, and improves the holding force between the belt body and the rubber band, while preventing the rubber band from being damaged during the holding and conveying of root vegetables such as ginseng and radish. An object of the present invention is to provide a transport belt for use in a crop harvester with improved tearability and a longer life.

[0007]

[Means for Solving the Problems]

 That is, a feature of the present invention is that a set of belts having a structure in which a rubber band is adhered to a belt body in which a core wire or a core body is embedded is used while the rubber bands are in contact with each other. The above-mentioned rubber belt is a foam formed of at least two convex portions.

[0008]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view of a transport belt driving device used in a crop harvester. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a state in which the transport belt is transporting harvested products. FIG. 4 is a cross-sectional view of a conveyor belt used in another crop harvester according to the present invention. In the figure, a conveyor belt driving device 1 used in a crop harvester has a set of structures having a structure in which a rubber band 5 having two convex portions is vulcanized and bonded to a belt body 3 having a core wire 4 embedded therein. The transport belts 2, 2 are wound around a driving pulley 7, a driven pulley 8, and an intermediate pulley 9 in a state where the convex portions 6, 6 of the rubber bands 5, 5 are in partial contact. When the leaves 12 are sandwiched between the protrusions 6 of each rubber band, the transport body 11 made of agricultural products such as carrot is extracted from the soil and transported.

The above-described transport belt 2 of the present invention has at least two ridges on a belt body 3 in which a core wire 4 made of polyester fiber or polyamide fiber is embedded in rubber such as natural rubber, SBR, NBR, or CR. It has a structure in which a rubber band 5 made of a foam 13 having a convex portion is integrated by vulcanization bonding. The rubber of the belt body 3 may contain short fibers such as nylon, polyester, aramid, and cotton as needed.

The foam 13 may be natural rubber, rubber such as SBR, NBR, CR or the like, which is vulcanized and foamed with a chemical foaming agent, or an integral skin foam such as urethane. The hardness (JIS A) of the foam 13 is 10 to 70 degrees in a region near the convex portion 6, and the inside thereof is set to be 5 degrees or lower.

A belt body 3 of the conveyor belt 2 shown in FIG. 3 has a drive body 17 having a protrusion 16 having a trapezoidal cross section to be fitted in a pulley groove, and a rubber body to be embedded therein. 5 comprises a foam 13 having three convex portions 6.

[0012]

[Effect of the invention]

 As described above, in the transport belt of the present invention, the conventional transported object is pinched at one location by forming the rubber band vulcanized and bonded to the back of the belt body into a foam having at least two convex portions. In comparison, the conveyed object and the rubber body are in partial contact at two or more places, and the pinch force such as ginseng and radish is pinched and conveyed, so that the conveyed object can be prevented from slipping down and conveyed without being damaged. effective. In addition, since the conveyance can be performed accurately, the conveyance can be performed without causing the conveyance failure.

[Brief description of the drawings]

FIG. 1 is a plan view of a transport belt driving device used in a crop harvester.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a state in which a transport belt is transporting a crop.

FIG. 3 is a sectional view of a conveyor belt used in another crop harvester according to the present invention.

[Explanation of symbols]

 2 Conveyor belt 3 Belt body 4 Core wire 5 Rubber band 6 Convex portion of rubber body 13 Foam

Claims (1)

[Utility model registration claims] 1. A conveyor belt comprising a pair of belts having a structure in which a rubber band is vulcanized and bonded to a belt body in which a core wire or a core body is embedded, wherein the rubber bands are in contact with each other. A belt for conveyance, wherein the band is a foam formed of at least two peaks.