Riding up member

Abstract

To provide a riding up member capable of easily controlling a conveyance speed of a container conveyed on a roller conveyor, at a desired position.SOLUTION: A riding up member includes a pair of side frames and a plurality of rollers stretched between the pair of side frames, and decelerates or stops a container being conveyed on a roller conveyor used in a field. The riding up member includes: a support surface supported by the roller or a rotary shaft of the roller; and a riding up part held between the adjacent rollers and at a position higher than these rollers. The riding up member is detachably mounted with respect to the roller conveyor.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a ride-up member. [Background technology]

[0002] The boxes containing the harvested products in the field are transported outside the field or to a work road within the field and transferred to a truck, etc. A roller conveyor is sometimes used to transport the boxes within the field (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-227241 A Summary of the Invention [Problem to be solved by the invention]

[0004] Farm fields other than paddy fields and fields converted from paddy fields are often sloping fields with an overall slope. In addition, the slope of the farm fields is often irregular. When using a roller conveyor in such an environment, the inclination angle in the conveying direction of the roller conveyor is likely to be large.

[0005] Although it is influenced by the condition of the roller conveyor's bearings, the material of the box (cardboard, plastic, wood, etc.), the condition of the bottom of the box, whether there is a content, and the weight of the box including the content, for example, if the inclination angle of the roller conveyor is set to 2 degrees or more and the box is given an initial speed, the box will continue to run at a constant speed. The inclination angle of the roller conveyor at this time is called the rolling slope, and the running speed of the box is also called the rolling speed. If the running speed of the box exceeds the rolling speed, the box will accelerate and become dangerous.

[0006] For example, when a roller conveyor is used in a sloping field, there are two transport methods: "mountain exit" (exiting the higher aisle on the mountain side) and "valley exit" (exiting the lower aisle on the valley side). The inclination angle of a sloping field can be less than 3 degrees, 3 to 6 degrees, or 6 degrees or more, and in summer vegetables and orchards where the mountains are opened, the inclination can be even steeper. If the inclination angle of a sloping field is 2 degrees, and a roller conveyor designed with a length of 3000 mm in the transport direction and a rolling angle of 2 degrees is placed at the mountain exit, the transport height on the valley side will be about 21 cm higher than the transport height on the mountain side. And when this roller conveyor is placed at the valley exit, the difference in transport height between the valley side and the mountain side will be about 32 cm, which is a steep slope of about 6 degrees. Therefore, in such a sloping field, the running speed of the boxes is likely to be greater than the rolling speed.

[0007] In addition, there are flat fields such as rice paddies and fields converted from rice paddies, but even in such flat fields, the ground is soft and the legs of the roller conveyor may sink deep. It is also possible to adjust the height of the legs of the roller conveyor to suit the field, but this is time-consuming. From this perspective, even in flat fields, the inclination angle of the roller conveyor is often set to be larger than the rolling slope to increase versatility. Therefore, even in flat fields, there is a risk that the running speed of the box will accelerate beyond the rolling speed. Furthermore, regardless of whether the field is sloping or flat, it is sometimes desired that the box decelerate or stop just before being transferred to a truck, etc.

[0008] The present disclosure has been made based on the above circumstances, and aims to provide a climbing member that can easily control the conveying speed of a container transported on a roller conveyor at a desired position. [Means for solving the problem]

[0009] A climbing member according to one embodiment of the present disclosure has a pair of side frames and a number of rollers stretched between the pair of side frames, and is a climbing member that slows down or stops a container transported on a roller conveyor used in a farm field, and is provided with a support surface supported by the rollers or the rotating shafts of the rollers, and a climbing portion that is held between adjacent rollers at a higher position than the rollers, and is removably attached to the roller conveyor. Effect of the Invention

[0010] A climbing member according to one aspect of the present disclosure makes it possible to easily control the conveying speed of a container conveyed on a roller conveyor at a desired position. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic side view showing a usage state of a riding-up member according to an embodiment of the present disclosure arranged on a roller conveyor. [Diagram 2] FIG. 2 is a schematic perspective view of the riding member of FIG. [Diagram 3] FIG. 3 is a schematic plan view of the riding member of FIG. 2 disposed on a roller conveyor. [Figure 4] FIG. 4 is a schematic side view of the riding member of FIG. 2 arranged on a roller conveyor. [Diagram 5] FIG. 5 is a schematic perspective view showing a modified example of the first attachment portion of the riding member of FIG. [Figure 6] FIG. 6 is a schematic perspective view of a riding-up member according to a different embodiment from that of the riding-up member in FIG. [Figure 7] FIG. 7 is a schematic plan view of the riding member of FIG. 6 arranged on a roller conveyor. [Figure 8] FIG. 8 is a schematic side view of the riding member of FIG. 6 arranged on a roller conveyor. [Figure 9] FIG. 9 is a schematic perspective view of a riding-up member according to a different embodiment from the riding-up members in FIG. 2 and FIG. [Figure 10] FIG. 10 is a schematic plan view of the riding member of FIG. 9 arranged on a roller conveyor. [Figure 11] FIG. 11 is a schematic side view of the riding member of FIG. 9 arranged on a roller conveyor. [Figure 12] FIG. 12 is a schematic side view showing a state in which the roller conveyor is moved using the climbing member of FIG. [Figure 13] FIG. 13 is a schematic plan view corresponding to FIG. 10 and showing a modified example of the riding-up member of FIG. [Figure 14] FIG. 14 is a schematic side view of the riding member of FIG. 13, corresponding to FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0013] (1) A climbing member according to one embodiment of the present disclosure has a pair of side frames and a number of rollers stretched between the pair of side frames, and is a climbing member that slows down or stops a container transported on a roller conveyor used in a farm field, the climbing member having a support surface supported by the rollers or the rotation shafts of the rollers, and a climbing portion that is held between adjacent rollers at a higher position than the rollers, and is detachably attached to the roller conveyor.

[0014] The climbing member can be detachably arranged at a desired position in the conveying direction of the roller conveyor by supporting the support surface on the roller or the rotation shaft of the roller that is stretched between the pair of side frames. Furthermore, since the climbing member has a climbing portion that is held between adjacent rollers at a higher position than these rollers, it is possible to slow down or stop the container at a desired position in the conveying direction of the roller conveyor. Therefore, the climbing member can easily control the conveying speed of the container conveyed on the roller conveyor at a desired position.

[0015] (2) In the above (1), a pair of first mounting parts may be provided to be attached to the pair of side frames, the ride-up part may be connected to the pair of first mounting parts, and the support surface may be provided on the first mounting parts. With this configuration, the roller conveyor can be easily and reliably attached to the roller conveyor with a simple configuration.

[0016] (3) In the above (1) or (2), a second mounting portion may be provided that is inserted between the pair of side frames between the adjacent rollers, the ride-up portion is connected to the second mounting portion, and the support surface is provided on the second mounting portion. With this configuration, the roller conveyor can be easily and reliably attached to the roller conveyor with a simple configuration.

[0017] (4) In the above (1), a third attachment portion may be provided that curves along the peripheral surface of the roller, the ride-on portion may be provided continuously with one end of the third attachment portion in the curved direction, and the inner peripheral surface of the third attachment portion may be configured as the support surface. With this configuration, the roller conveyor can be easily and reliably attached to the roller conveyor with a simple configuration.

[0018] (5) In the above (4), the climbing portion may be configured to cover at least two adjacent rollers. With this configuration, the climbing portion can be stably held on the rollers and the effect of reducing the conveying speed for the container can be easily enhanced.

[0019] (6) In any of (1) to (5) above, the climbing portion may have a downward slope on both sides in the conveying direction of the container. With this configuration, the container can be easily made to climb up onto the climbing portion and can be easily sent out from the climbing portion.

[0020] (7) In any of (1) to (6) above, it is preferable that the protruding height of the climbing portion relative to the top of the roller is 10 mm or less. With this configuration, the container can be easily made to climb onto the climbing portion, and the container can be easily sent out from the climbing portion. Furthermore, if the roller conveyor is arranged at a steep gradient and the protruding height of the climbing portion is large, the container may jump significantly at the climbing portion. In this case, if the container contains contents, the contents may be damaged when the container lands on the roller. Furthermore, if the protruding height of the climbing portion is large, the container may be damaged due to contact with the climbing portion.

[0021] In this disclosure, "held between adjacent rollers at a higher position than these rollers" means held so as to have a portion that protrudes upward relative to an imaginary plane passing through the tops of a pair of adjacent rollers. "The protruding height of the riding part relative to the roller tops" means the protruding height of the riding part relative to an imaginary plane passing through the tops of a pair of rollers adjacent to the riding part.

[0022] [Details of the embodiment of the present invention] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the drawings as appropriate. It is possible to adopt only one of the upper limit value and the lower limit value described in the present specification, or to arbitrarily combine the upper limit value and the lower limit value. In this specification, it is assumed that all combinable numerical ranges are described as suitable ranges. In addition, each figure is a schematic diagram and may not match the actual dimensions, ratios, etc. In this disclosure, the descriptions "first", "second", and "third" are intended to distinguish the components to which they are attached, and do not limit the number, order, priority, etc.

[0023] [First embodiment] <Climbing member> As shown in FIG. 1, the climbing member 10 has a pair of side frames 110 and a number of rollers 120 stretched between the pair of side frames 110, and slows down or stops a container P being transported on a roller conveyor 100 used in farm fields.

[0024] The climbing member 10 is detachably attached to the roller conveyor 100. More specifically, the climbing member 10 is detachably attached between a pair of adjacent rollers 120 of the roller conveyor 100 arranged in a farm field at an inclination angle equal to or greater than the inclination of the rollers. The climbing member 10 can be arranged between any rollers 120 provided in the roller conveyor 100, which makes it easy to adjust the deceleration position or stop position of the container P. In addition, two or more climbing members 10 can be arranged for one roller conveyor 100. Therefore, for example, by continuously arranging the climbing members 10 between the rollers 120 of the roller conveyor 100, it is possible to adjust the deceleration rate of the container P or control the container P to stop.

[0025] The use of the climbing member 10 in the field is not particularly limited. For example, the climbing member 10 may be used to control the speed of the container P containing the harvested product on a route for transporting the container P to a truck T, or may be used to stop the container P just before the loading platform C of the truck T. The container P is not particularly limited, and examples thereof include a cardboard box, a plastic box, a wooden box, and the like.

[0026] As shown in Figures 2 to 4, the riding member 10 has a support surface 1a supported by a rotation shaft 120a of a roller 120, and a riding portion 2 held between adjacent rollers 120 at a higher position than these rollers 120.

[0027] The climbing member 10 can be detachably arranged at a desired position in the conveying direction of the roller conveyor 100 by supporting the support surface 1a on the rotating shaft 120a of any roller 120 that is stretched between a pair of side frames 110. Furthermore, since the climbing member 10 has a climbing portion 2 that is held between adjacent rollers 120 at a higher position than these rollers 120, the container P can be decelerated or stopped at a desired position in the conveying direction of the roller conveyor 100. In addition, in a farm field, the roller conveyor 100 may become larger or smaller than the rolling inclination due to a slight change in the inclination during use. In such a case, it is extremely effective if the speed of the container P can be easily adjusted at a desired position depending on the situation during use. In this regard, the climbing member 10 can be easily arranged at a position where the rolling inclination is large. Therefore, the climbing member 10 can easily control the conveying speed of the container P conveyed on the roller conveyor 100 at a desired position.

[0028] The climbing member 10 has a pair of first mounting portions 1 attached to a pair of side frames 110. The climbing portion 2 is connected to the pair of first mounting portions 1. More specifically, the pair of first mounting portions 1 are arranged in parallel with a gap therebetween, and the climbing portion 2 is bridged across these first mounting portions 1. The climbing member 10 has the above-mentioned support surface 1a provided on the first mounting portions 1. The climbing member 10 is thus configured, and thus has a simple configuration, and can be easily and reliably attached to the roller conveyor 100.

[0029] (First mounting part) The riding member 10 is easily attached to and detached from the roller conveyor 100 by attaching the first attachment portion 1 to the side frame 110. The first attachment portion 1 is attached to the side frame 110 by being placed on the side frame 110 from above. As shown in FIG. 2, the first attachment portion 1 has a top plate 11 that abuts against the upper surface of the side frame 110 and an inner plate 12 that is arranged along the inner surface of the side frame 110. The top plate 11 and the inner plate 12 are formed in an L-shaped cross section. The top plate 11 and the inner plate 12 are elongated shapes that extend along the longitudinal direction of the side frame 110, for example. The top plate 11 and the inner plate 12 may each be rectangular. An end surface on one side of the longitudinal direction of the inner plate 12 is configured as the above-mentioned support surface 1a. The support surface 1a may be a flat surface, or may have a recess that fits into the rotation shaft 120a of the roller 120. Furthermore, the support surface 1a may be provided so as to be in surface contact, line contact, or point contact with the rotation shaft 120a of the roller 120. The riding-up member 10 may be provided with a fixing means for fixing the riding-up member 10 to the roller conveyor 100, in addition to the mounting portion. However, from the viewpoint of ensuring ease of attachment and detachment of the riding-up member 10, it is preferable that the riding-up member 10 is provided so as to be attached to the roller conveyor 100 simply by being placed on the roller conveyor 10.

[0030] The riding member 10 is configured such that the support surface 1a is supported from the downstream side by the rotating shaft 120a of the roller 120 by attaching the first attachment portion 1 to the side frame 110. That is, the riding member 10 is configured such that the support surface 1a moves to abut against the rotating shaft 120a on the downstream side due to the inclination of the roller conveyor 100 or due to the container P passing through the riding portion 2 by attaching the first attachment portion 1 to the side frame 110. Therefore, the riding member 10 does not require any special work to support the support surface 1a on the rotating shaft 120a of the roller 120. This configuration makes it extremely easy to attach the riding member 10 to the roller conveyor 100, and the attached state can be stably maintained.

[0031] A modified example of the first mounting portion will be described with reference to FIG. 5. The first mounting portion 21 in FIG. 5 has a top plate 11 that abuts on the upper surface of the side frame 110, an inner plate 12 that is arranged along the inner side surface of the side frame 110, and an outer plate 13 that is arranged along the outer side surface of the side frame 110. The top plate 11, the inner plate 12, and the outer plate 13 are formed in a U-shaped cross section. The top plate 11, the inner plate 12, and the outer plate 13 are each elongated extending along the longitudinal direction of the side frame 110. The top plate 11, the inner plate 12, and the outer plate 13 may each be rectangular. An end face on one side of the longitudinal direction of the inner plate 12 is configured as the above-mentioned support surface 1a. Even if the first mounting portion 21 has such a shape, the riding member 10 can be easily attached to the side frame 110 by placing the first mounting portion 21 on the side frame 110 from above.

[0032] (Riding part) The riding portion 2 has a bottom surface connected to the pair of first attachment portions 1, and a top surface 2a protruding upward between adjacent rollers 120. The top surface 2a is configured to decelerate or stop the container P by friction, and to send the container P downstream in the conveying direction of the roller conveyor 100. In other words, the top surface 2a is configured to allow the container P to ride up and to allow the container P to ride over the riding portion 2. More specifically, the climbing member 10 is configured so that a container P transported on the roller conveyor 100 can be sent downstream of the roller conveyor 100 through the following states: (1) the front of the bottom surface rides on the top surface 2a and the rear of the bottom surface is supported by the rollers 120; (2) the center of the bottom surface rides on the top surface 2a and the front and rear of the bottom surface are held in midair; and (3) the rear of the bottom surface rides on the top surface 2a and the front of the bottom surface is supported by the rollers 120. During this time, the speed of the container P is controlled by increasing the frictional resistance between the climbing member 2 and the bottom surface of the container P, or by reducing or eliminating the function of the rollers 120, or by arranging multiple climbing members 10 as necessary.

[0033] As shown in FIG. 4, the climbing portion 2 has a downward gradient on both sides in the conveying direction of the container P. More specifically, the top surface 2a has a high region HR that is disposed at a higher position than a pair of adjacent rollers 120, and has a first downward gradient on the upstream side of the high region HR in the conveying direction of the container P and a second downward gradient on the downstream side of the conveying direction. The high region HR is, for example, arc-shaped in side view. The shape of the high region HR in side view may be a shape in which the arc is approximated by a plurality of straight lines (for example, three or more), or may be an inverted V-shape. Among them, from the viewpoint of smoothly sending out the container P while suppressing damage to the container P, an arc shape or a shape in which the arc is approximated by three straight lines (for example, a trapezoid) is preferable. The climbing member 10 has the first downward gradient, so that the container P can easily climb up onto the climbing portion 2. The climbing member 10 has the second downward gradient, so that the container P can easily be sent out from the climbing portion 2. Furthermore, since the climbing portion 2 has the first downward slope and the second downward slope, combined with the fact that the climbing portion 2 is positioned between a pair of rollers 120, it can perform the function of slowing down or stopping the container P even if the conveying direction of the container P is reversed (even if the container P is fed in reverse).

[0034] The upper limit of the protruding height H of the riding part 2 relative to the top of the roller 120 is preferably 10 mm, more preferably 5 mm, and even more preferably 3 mm, from the viewpoint of decelerating or stopping the container P and easily sending the container P downstream of the roller conveyor 100. If the roller conveyor 100 is arranged at a steep gradient and the protruding height H of the riding part 2 is large, the container P may jump significantly at the riding part 2. In this case, if the container P contains contents, the contents may be damaged when it lands on the roller 120. In addition, if the protruding height H of the riding part 2 is large, the container P may be damaged due to contact with the riding part 2. On the other hand, the lower limit of the protruding height H may be 1 mm, from the viewpoint of easily obtaining the deceleration effect of the container P.

[0035] As shown in Fig. 3, the riding portion 2 is connected to a longitudinal middle portion of the pair of first mounting portions 1. That is, both longitudinal ends of the pair of first mounting portions 1 protrude outward beyond the riding portion 2. With this configuration, the riding member 10 can make both longitudinal end faces of the inner plate 12 function as the above-mentioned support surfaces 1a. As a result, the freedom of arrangement of the riding member 10 can be increased.

[0036] [Second embodiment] <Climbing member> The climbing member 30 in Fig. 6 to Fig. 8 has a plurality of rollers 120 stretched between a pair of side frames 110, and decelerates or stops a container P conveyed on a roller conveyor 100 used in a farm field. The climbing member 30 has a support surface 31a supported by the rollers 120, and a climbing portion 2 that is held between adjacent rollers 120 at a higher position than these rollers 120. The climbing member 30 is detachably attached to the roller conveyor 100. The climbing portion 2 has a downward slope on both sides in the conveying direction of the container P. The specific configuration of the climbing portion 2 in the climbing member 30 can be the same as that of the climbing portion 2 in the first embodiment, and therefore the same reference numerals are used and the description is omitted.

[0037] Similar to the climbing member 10 in the first embodiment, the climbing member 30 can easily control the conveying speed of the container P conveyed on the roller conveyor 100 at a desired position. Moreover, by arranging the climbing member 30 continuously between the rollers 120 of the roller conveyor 100, it is possible to adjust the deceleration rate of the container P or control the container P to stop.

[0038] The riding member 30 includes a second attachment portion 31 that is inserted between a pair of side frames 110 between adjacent rollers 120. The riding portion 2 is connected to the second attachment portion 31. More specifically, the second attachment portion 31 is fixed to the bottom surface of the riding portion 2. The riding member 30 has the support surface 31a provided on the second attachment portion 31. The riding member 30 is configured in this manner, and thus has a simple configuration and can be easily and reliably attached to the roller conveyor 100.

[0039] (Second mounting part) The riding member 30 is easily attached to and detached from the roller conveyor 100 by inserting the second attachment portion 31 into the space between the pair of side frames 110 between the adjacent rollers 120. Specifically, the second attachment portion 31 is fixed to the center portion in the width direction (direction parallel to the axis of the roller 120) of the bottom surface of the riding portion 2. As a result, both ends in the width direction of the riding portion 2 protrude outward from the second attachment portion 31. With this configuration, when the second attachment portion 31 is inserted into the space between the pair of side frames 110, both ends of the bottom surface of the riding portion 2 abut against the upper surface of the side frame 110. Therefore, the riding member 30 is stably held between the pair of adjacent rollers 120, with the riding portion 2 being supported from below by the pair of side frames 110 and the movement in the planar direction being restricted by the second attachment portion 31.

[0040] The second mounting portion 31 is, for example, U-shaped. The second mounting portion 31 has a front plate 32 that protrudes downward on the upstream side of the conveying direction of the container P, and a rear plate 33 that protrudes downward on the downstream side of the conveying direction of the container P. The front plate 32 and the rear plate 33 are arranged parallel to each other so as to face each other in the conveying direction of the container P. The rear surface of the rear plate 33 is configured as the above-mentioned support surface 31a. Note that the riding member 30 is provided so that the front surface of the front plate 32 is configured as the above-mentioned support surface 31a when the conveying direction of the container P is reversed, etc. Note that in FIG. 6, the support surface 31a is a single elongated surface extending in the width direction of the riding member 30, but the support surfaces 31a may be formed, for example, at intervals in the width direction of the riding portion 2, or may be formed only at both ends in the width direction of the riding portion 2.

[0041] The support surface 31a may be flat or curved to correspond to the peripheral surface of the roller 120. The support surface 31a may be provided so as to be in surface contact, line contact, or point contact with the peripheral surface of the roller 120. The front plate 32 and the rear plate 33 are elongated with the width direction of the riding member 30 as the longitudinal direction. The end faces on both sides in the longitudinal direction of the front plate 32 and the rear plate 33 are configured as restricting portions that restrict the movement of the riding member 30 in the width direction by abutting against the inner surfaces of the pair of side frames 110.

[0042] The climbing member 30 is configured such that the support surface 31a is supported by the roller 120 from the downstream side by inserting the second mounting portion 31 into the space between the pair of side frames 110. That is, the climbing member 30 places the climbing portion 2 on the pair of side frames 110, and the support surface 31a moves to abut against the downstream roller 120 due to the inclination of the roller conveyor 100 or due to the container P passing through the climbing portion 2. Therefore, the climbing member 30 does not require any special work to support the support surface 31a on the roller 120. This configuration makes it extremely easy to attach the climbing member 30 to the roller conveyor 100, and the attached state can be stably maintained.

[0043] Since the climbing member 30 has a climbing portion 2 with a downward slope on both sides in the conveying direction of the container P, the container P can be easily made to climb up onto the climbing portion 2 and can be easily sent out from the climbing portion 2. Furthermore, with this configuration, coupled with the fact that the climbing portion 2 is disposed between the pair of rollers 120, even if the conveying direction of the container P is reversed (even if the container P is fed in reverse), it can function to slow down or stop the container P.

[0044] [Third embodiment] <Climbing member> 9 to 11 has a plurality of rollers 120 stretched between a pair of side frames 110, and decelerates or stops a container P transported on a roller conveyor 100 used in a farm field. The climbing member 40 includes a support surface 41a supported by the rollers 120, and a climbing portion 42 that is held between adjacent rollers 120 at a higher position than these rollers 120. The climbing member 40 is detachably attached to the roller conveyor 100.

[0045] Similar to the climbing member 10 in the first embodiment, the climbing member 40 can easily control the conveying speed of the container P conveyed on the roller conveyor 100 at a desired position. Moreover, by arranging the climbing member 40 continuously between the rollers 120 of the roller conveyor 100, it is possible to adjust the deceleration rate of the container P or control the container P to stop.

[0046] The riding member 40 includes a third attachment portion 41 that curves along the circumferential surface of the roller 120. The riding portion 42 is provided continuously with one end of the third attachment portion 41 in the curved direction. The inner circumferential surface of the third attachment portion 41 is configured as the above-mentioned support surface 41a. The riding member 40 is configured in this manner, and thus has a simple configuration and can be easily and reliably attached to the roller conveyor 100.

[0047] The third attachment portion 41 and the riding portion 42 can be integrally formed from, for example, a metal or an alloy.

[0048] (Third mounting part) The third attachment portion 41 has an arc-shaped cross section. The third attachment portion 41 may extend over the entire region of the riding portion 42 in the width direction. In this case, the third attachment portion 41 is configured in a partially cylindrical shape with the axial direction as the longitudinal direction. The third attachment portion 41 may be connected to a portion of the riding portion 42 in the width direction. In this case, the riding member 40 may have a plurality of third attachment portions 41 arranged in the width direction of the riding portion 42.

[0049] The riding-up member 40 can be easily attached and detached to the roller conveyor 100 by fitting the third attachment portion 41 to the peripheral surface of the roller 120. Therefore, when attaching the riding-up member 40 to the roller conveyor 100, no special work is required other than fitting the third attachment portion 41 to the peripheral surface of the roller 120. With this configuration, the riding-up member 40 can be attached to the roller conveyor 100 very easily, and the attached state can be stably maintained.

[0050] (Riding part) The riding portion 42 is plate-shaped. The riding portion 42 is configured to cover at least two adjacent rollers 120. The riding portion 42 extends onto the roller 120 adjacent to the roller 120 to which the third attachment portion 41 is attached. Since the riding member 40 is configured in this manner, the riding portion 42 can be stably held on the rollers 120 and the effect of reducing the conveying speed for the container P can be easily enhanced.

[0051] Like the riding portion 2 in the first embodiment, the riding portion 42 is configured to decelerate or stop the container P by friction and to send the container P downstream in the conveying direction of the roller conveyor 100.

[0052] The climbing portion 42 has a downward gradient on the upstream side in the conveying direction of the container P. The climbing portion 42 has a top surface 42a that protrudes upward when the climbing member 40 is attached to the roller 120. As shown in FIG. 11, the top surface 42a has a high region HR that is located at a higher position than the roller 120 to which the third attachment portion 41 is attached and the roller 120 adjacent to the downstream side of the roller 120 (the roller 120 that supports the climbing portion 42 from below), and has a first downward gradient on the upstream side in the conveying direction of the container P in the high region HR. The climbing member 40 can easily make the container P climb up onto the climbing portion 42 by having the first downward gradient. The climbing member 40 can easily send out the container P from the climbing portion 42 by having the climbing portion 42 in a plate shape.

[0053] The protruding height of the riding portion 42 relative to the top of the roller 120 can be set to the same as the protruding height H in the first embodiment.

[0054] The climbing member 40 can also be used for transporting roller conveyors, as shown in FIG. 12. In other words, in a farm field, a plurality of roller conveyors 100 may be connected in series depending on the length of the transport path. In this case, if an unconnected roller conveyor 100a can be slid on a roller conveyor 100 already installed in the farm field to the connection position, the work of connecting a plurality of roller conveyors 100 can be facilitated. In this regard, by attaching the climbing member 40 to a plurality of locations (for example, the front end and the rear end) of the unconnected roller conveyor 100a, the unconnected roller conveyor 100a can be easily transported on the roller conveyor 100.

[0055] [Other embodiments] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is not limited to the configurations of the above-described embodiments, but is indicated by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0056] In the above embodiment, the case where the climbing member is used within a farm field is described, but in the present disclosure, the climbing member is not intended to exclude use outside of agriculture, such as in farm work areas or in similar working conditions.

[0057] The specific configuration of the roller conveyor in which the riding-up member is used is not particularly limited. For example, the roller conveyor may have a height adjustment mechanism capable of adjusting the height of a pair of side frames. The roller conveyor may also have legs extending downward from the pair of side frames, and wheels may be disposed on the lower ends of the legs. The roller conveyor may also be configured such that the pair of side frames are supported by a wheeled cart.

[0058] The configurations of the first embodiment, the second embodiment, and the third embodiment can be used in combination. For example, the riding member can be configured to include both the first mounting portion and the second mounting portion.

[0059] Even if the riding-up member includes the above-mentioned third attachment portion, the riding-up portion does not have to extend onto a roller adjacent to the roller to which the third attachment portion is attached.

[0060] With reference to Figs. 13 and 14, a configuration in which the riding portion 52 is provided so as to cover only one roller 120 will be described as a modified example of the third embodiment. The riding member 50 in Figs. 13 and 14 includes a third attachment portion 51 that curves along the circumferential surface of the roller 120, and the riding portion 52 is provided continuously with one end of the third attachment portion 51 in the curved direction. The riding member 50 also has protruding portions 54 that protrude on both sides of the riding portion 52 in the width direction so as to prevent the riding portion 52 from sinking below the pair of side frames 110. The protruding portions 54 are disposed at the rear end portion of the riding portion 52. The protruding portions 54 may be configured as part of the riding portion 52, or may be fixed to the lower surface of the riding portion 52 as shown in Figs. 13 and 14. The protruding portions 54 are bridged between the upper surfaces of the pair of side frames 110 to hold the riding portion 52 at a higher position than the upper surfaces of the pair of side frames 110. It is preferable that the protrusion 54 is configured to hold the climbing portion 52 parallel to the upper surfaces of the pair of side frames 110. Even with such a configuration, the climbing member 50 has a simple configuration and can be easily and reliably attached to the roller conveyor 100. [Explanation of symbols]

[0061] 1, 21 First mounting part 1a, 31a, 41a Support surface 2, 42, 52 Riding part 2a, 42a top 10, 30, 40, 50 Riding member 11 Tabletop 12 Inner plate 13 Outer plate 31 Second mounting part 32 Front Panel 33 Rear plate 41, 51 Third mounting part 54 Protrusion 100, 100a roller conveyor 110 Side Frame 120 Lola 120a Rotating shaft C. Cargo bed H: Height of the protruding part relative to the top of the roller HR high area P container T Track

Claims

1. A climbing member having a pair of side frames and a plurality of rollers stretched between the pair of side frames, the climbing member slowing down or stopping a container being transported on a roller conveyor used in a farm field, a support surface supported by the roller or a rotation shaft of the roller; a ride-on portion that is held at a position higher than the adjacent rollers between the adjacent rollers; Equipped with A climbing member that is detachably attached to the roller conveyor.

2. A pair of first mounting portions are attached to the pair of side frames, The riding portion is connected to the pair of first mounting portions, The climbing member according to claim 1 , wherein the first mounting portion is provided with the support surface.

3. a second mounting portion is provided between the pair of side frames between adjacent rollers, The ride-up portion is connected to the second mounting portion, The climbing member according to claim 1 , wherein the second mounting portion is provided with the support surface.

4. The roller has a third attachment portion curved along a circumferential surface thereof, The ride-up portion is provided continuously to one end portion in a curved direction of the third attachment portion, 2. The climbing member according to claim 1, wherein an inner circumferential surface of the third attachment portion is configured as the support surface.

5. The climbing member according to claim 4, wherein the climbing portion is configured to cover at least two adjacent rollers.

6. The climbing member according to claim 1 , wherein the climbing portion has a downward slope on both sides in the conveying direction of the container.

7. 6. The climbing member according to claim 1, wherein a protruding height of the climbing portion from the top of the roller is 10 mm or less.

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