Load transfer device

Abstract

To provide a load conveyance device capable of conveying a load and sending out the load in a direction intersecting a load conveyance direction with a drive source reduced as much as possible.SOLUTION: A Mecanum roller mechanism 72 includes a pair of first Mecanum rollers 75 that can rotate in one direction and the other direction, and a pair of second Mecanum rollers 76 that can rotate in only one direction. A power transmission unit 100 that transmits the power of a drive source to the Mecanum roller mechanism 72, and a plurality of one-way clutches 85 and 86 provided on one of the first Mecanum rollers 75 are provided, a control device rotates the pair of first Mecanum rollers 75 in one direction and rotates the pair of second Mecanum rollers 76 in one direction using the one-way clutches 85 and 86 to convey a load, and rotates the pair of first Mecanum rollers in the other direction and rotates the pair of second Mecanum rollers in one direction using the one-way clutch to send out the load in a direction intersecting the conveyance direction.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This invention relates to a load carrying device for carrying loads.

Background Art

[0002] As a conventional technology related to a load carrying device, for example, an automated warehouse disclosed in Patent Document 1 is known. In the automated warehouse disclosed in Patent Document 1, storage warehouses with multi-stage storage shelves arranged on both sides sandwiching a transfer passage are arranged. In the transfer passage, self-propelled carts for loading and unloading are arranged so as to be horizontally movable corresponding to a plurality of stages of storage shelves. Further, at a position on the outer side of the storage warehouse that is located on the extension line of the storage shelf in a plan view, a conveyor-type relay shelf close to the storage shelf and a lift located on the opposite side of the storage warehouse with the relay shelf in between are arranged. Thereby, it is said that the loading and unloading capacity can be increased by fully exerting the capabilities of the self-propelled cart and the lift while ensuring a buffer function.

[0003] The self-propelled cart of the automated warehouse disclosed in Patent Document 1 includes a traveling motor for traveling on the transfer passage, a load width motor for changing the overlapping width dimension of the load receiving part, a picking motor for driving a picking unit, and a second picking motor for driving a payout claw.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the automated warehouse disclosed in Patent Document 1, there is a problem that the traveling cart for loading and unloading loads to and from the storage shelf requires a large number of drive sources. When using a large number of drive sources, for example, not only does the manufacturing cost of the device increase, but also the power consumption increases.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a load conveying apparatus capable of realizing load conveyance and load delivery in a direction intersecting with the load conveyance direction by a drive source that is reduced as much as possible.

Means for Solving the Problems

[0007] In order to solve the above problems, the present invention includes a drive source, In the conveying direction of the load from the upstream side to the downstream side in the conveying path load to convey a conveying mechanism for conveying, and a load on the conveying mechanism said a delivery mechanism for delivering in a direction intersecting with the conveyance direction, and a control device for controlling the drive source, in a load conveying apparatus, a Mecanum roller mechanism that also serves as the conveying mechanism and the delivery mechanism is provided, and the Mecanum roller mechanism said conveying direction and opposite to said conveying direction a pair of first Mecanum rollers rotatable in a direction, said conveying direction a pair of second Mecanum rollers rotatable only in a direction, are provided, said pair of The first Mecanum roller is located on the downstream side in the conveyance direction in the Mecanum roller mechanism downstream side first Mekanum roller to do , said downstream side is located on the upstream side in the conveyance direction from the first Mecanum roller upstream side first Mekanum roller to do, and includes, said upstream side the first Mecanum roller and said downstream side first Mekanum roller are rotates in the same direction connectable as possible is, said pair of The second Mecanum roller is located between the pair of first Mecanum rollers downstream side second Mekanum roller to do , said upstream side is located on the upstream side in the conveyance direction from the first Mecanum roller upstream side second Mekanum roller to do, and includes, said upstream side the second Mecanum roller and downstream side second Mekanum roller are rotates in the same direction connectable as possible is, the first Mecanum roller and the second Mecanum roller each have a shaft member and a pair of Mecanum roller bodies supported by the shaft member, and the Mecanum roller body Rotating about the axis of the shaft member a wheel, and a plurality of rollers provided continuously in the circumferential direction of the wheel and rotating around a rotation axis inclined at a constant angle with respect to the axis of the shaft member, are provided, the rotation axis of the roller of the first Mecanum roller and the rotation axis of the roller of the second Mecanum roller are substantially orthogonal, the drive source is an electric motor, the Electric motorA power transmission unit that transmits power to the mecanum roller mechanism is provided, said downstream side The first mecanum roller is, a first one-way clutch that transmits power with respect to rotation in the conveying direction and blocks power transmission with respect to rotation in the direction opposite to the conveying direction, and a second one-way clutch that blocks power transmission with respect to rotation in the conveying direction and transmits power with respect to rotation in the direction opposite to the conveying direction, and is provided obtained, the downstream side first Mekanum roller and the downstream side second Mekanum roller are connected so as to be rotatable in the same direction via the first one-way clutch, and are connected so as to be rotatable in the opposite direction via the second one-way clutch. When the downstream side first Mekanum roller rotates in the conveying direction by the normal rotation of the electric motor, the downstream side second Mekanum roller is rotated in the conveying direction, and when the downstream side first Mekanum roller rotates in the direction opposite to the conveying direction by the reverse rotation of the electric motor, the downstream side second Mekanum roller is rotated in the conveying direction, The control device controls the Electric motor and the power transmission unit, and by the forward rotation of the electric motor said upstream side first Mekanum roller and said downstream side rotates the first mecanum roller said conveying in a direction, and by a plurality of the one-way clutches said upstream side second Mekanum roller and said downstream side rotates the second mecanum roller said conveying in a direction to convey a load in said conveying direction and, by the reverse rotation of the electric motor, the upstream side first Mekanum roller and said downstream side rotates the first mecanum roller opposite to said conveying direction in a direction, and by a plurality of the one-way clutches said upstream side second Mekanum roller and said downstream side rotates the second mecanum roller said conveying in a direction so as to , when the load is supported by the Mekanum roller body, the plurality of rollers provided on the Mekanum roller body of the upstream side first Mekanum roller and the Mekanum roller body of the downstream side first Mekanum roller, and the Mekanum roller body of the upstream side second Mekanum roller and the Mekanum roller body of the downstream side second Mekanum roller The plurality of rollers provided on the are rotated in opposite directions to each other, a plurality of cause the load to receive a force directed in a direction intersecting the conveying direction from the rollers to said send the load in a direction intersecting the conveying direction, which is characterized in that. said send it out

[0008] In the present invention, since the mecanum roller mechanism serves as both a conveying mechanism and a sending-out mechanism, it is only necessary to transmit the power of the drive source to the first mecanum roller and the second mecanum roller, and the power transmission mechanism can be simplified.

Advantages of the Invention

[0009] According to the present invention, it is possible to provide a load conveying device capable of realizing the conveyance of a load and the sending-out of the load in a direction intersecting the load conveying direction by a drive source with which the reduction is made as much as possible.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

[0011] Hereinafter, the load conveyance device of the present invention will be described with reference to the drawings. The load conveyance device of the present embodiment is an example applied to an automated warehouse for loading and unloading loads.

[0012] As shown in FIG. 1, the load conveyance device 70 includes a mecanum roller conveyor 71 having a plurality of mecanum roller mechanisms 72, and a conveyor-type storage shelf 12 capable of storing a plurality of loads W. The load W is a foldable container box in which articles are accommodated. The load W is not limited to a foldable container box, and may be, for example, a loaded pallet, a cardboard box, or the like. The storage shelf 12 is arranged on the side of the mecanum roller conveyor 71. One end of the mecanum roller conveyor 71 is the upstream side in the conveyance path of the load W, and the other end is the downstream side in the conveyance path of the load W. An incoming conveyor 14 for feeding the load W into the load conveyance device 10 is provided upstream of the mecanum roller conveyor 71, and an outgoing conveyor 15 for sending out the load W from the load conveyance device 70 is provided downstream of the mecanum roller conveyor 71.

[0013] Next, the storage shelf 12 will be described. The storage shelf 12 is a shelf capable of storing a plurality of loads W, and is installed on the side of the mecanum roller conveyor 71 along the mecanum roller conveyor 71. As shown in FIG. 1, a load storage portion 41 for storing the load W is provided at the upper part of the storage shelf 12. The load storage portion 41 has a roller conveyor (not shown) as a conveying device. The roller conveyor includes a conveyor frame (not shown), a plurality of rollers (not shown) rotatably supported by the conveyor frame, and an electric motor (not shown) as a drive source. The load storage portion 41 is disposed in the longitudinal direction of the storage shelf 12. Therefore, the load W on the storage shelf 12 can be conveyed in parallel with the conveying direction of the mecanum roller conveyor 71. That is, the roller conveyor supports the load W and can move the load W stored in the load storage portion 41 in the extending direction of the load storage portion 41. The upper surface of the load storage portion 41 may be configured to support the load W, and preferably has a configuration with less resistance when the load W enters and exits between the load storage portion 41 and the mecanum roller conveyor 71.

[0014] As shown in FIG. 1, the mecanum roller conveyor 71 is provided between the incoming conveyor 14 and the outgoing conveyor 15. As shown in FIG. 2, the mecanum roller conveyor 71 includes a conveyor frame 73 and an electric motor 74 as a drive source. The electric motor 74 is a drive source of the mecanum roller conveyor 71 and is provided on the conveyor frame 73 via a bracket (not shown). The electric motor 74 includes an output shaft 107. The output shaft 107 of the electric motor 74 can rotate forward and backward by the drive of the electric motor 74.

[0015] A plurality of mecanum roller mechanisms 72 are arranged between the incoming conveyor 14 and the outgoing conveyor 15, and the mecanum roller mechanisms 72 face the load accommodating portions 41 of the conveyor type storage shelves 12 respectively. The mecanum roller mechanism 72 has a function of conveying the load W toward the adjacent mecanum roller mechanism 72 or the outgoing conveyor 15, or sending it out to the load accommodating portion 41 of the storage shelf 12. That is, the mecanum roller mechanism 72 serves as both a conveying mechanism for conveying the load W in one direction and a sending-out mechanism for sending out the load W on the conveying mechanism in a direction intersecting the conveying direction.

[0016] As shown in FIGS. 2 and 3, the mecanum roller mechanism 72 includes two first mecanum rollers 75 and two second mecanum rollers 76. The first mecanum roller 75 includes a first mecanum roller 75A located on the most downstream side in the mecanum roller mechanism 72 and a first mecanum roller 75B located second from the upstream side, and is rotatably supported by the conveyor frame 73. The second mecanum roller 76 includes a second mecanum roller 76A located between the two first mecanum rollers 75 and a second mecanum roller 76B located on the most upstream side in the mecanum roller mechanism 72, and is rotatably supported by the conveyor frame 73.

[0017] The first mecanum roller 75 has a shaft member 77 and two mecanum roller bodies 78 supported by the shaft member 77. Both ends of the shaft member 77 are supported by the conveyor frame 73. The mecanum roller body 78 includes a wheel 79 that rotates around the axis of the shaft member 77, and a plurality of small-diameter rollers 80 that are provided in series in the circumferential direction of the wheel 79 and rotate around a rotation axis inclined at a certain angle (about 45 degrees) with respect to the axis of the shaft member 77. The axial interval between the two mecanum roller bodies 78 of the first mecanum roller 75B is larger than the axial interval between the two mecanum roller bodies 78 of the first mecanum roller 75A.

[0018] The first mecanum roller 75A includes a first belt pulley 81, a second belt pulley 82, a third belt pulley 83, and a fourth belt pulley 84. The first belt pulley 81 is a belt pulley for transmitting the power of the electric motor 74. The second belt pulley 82 is a belt pulley for transmitting the rotational force to the first mecanum roller 75B. The third belt pulley 83 and the fourth belt pulley 84 are belt pulleys for transmitting the rotational force to the second mecanum roller 76B. The third belt pulley 83 has a one-way clutch 85, and the fourth belt pulley 84 has a one-way clutch 86.

[0019] When the electric motor 74 rotates forward, the one-way clutch 85 rotates the third belt pulley 83 together with the shaft member 77 in the conveying direction, which is a one-way direction. When the electric motor 74 rotates reversely, the third belt pulley 83 idles relative to the shaft member 77. When the electric motor 74 rotates forward, the one-way clutch 86 idles the fourth belt pulley 84 relative to the shaft member 77. When the electric motor 74 rotates reversely, the one-way clutch 86 rotates the fourth belt pulley 84 together with the shaft member 77 in the direction opposite to the conveying direction, which is the other direction.

[0020] The first mecanum roller 75B includes a fifth belt pulley 87 corresponding to the second belt pulley 82 of the first mecanum roller 75A. A round belt 88 is mounted on the second belt pulley 82 and the fifth belt pulley 87. Therefore, the first mecanum roller 75B rotates together with the rotation of the first mecanum roller 75A.

[0021] The second mecanum roller 76 has a shaft member 90 and a mecanum roller body 91 supported by the shaft member 90. Both ends of the shaft member 90 are supported by the conveyor frame 73. The mecanum roller body 91 includes a wheel 92 that rotates about the axis of the shaft member 90, and a plurality of small-diameter rollers 93 that are provided in a row in the circumferential direction of the wheel 92 and rotate about a rotation axis inclined at a certain angle (about 45 degrees) with respect to the axis of the shaft member 90. The rotation axis of the roller 93 is substantially orthogonal to the rotation axis of the roller 93. The axial interval between the two mecanum roller bodies 91 of the second mecanum roller 76A is larger than the axial interval between the two mecanum roller bodies 91 of the second mecanum roller 76A, and is the same as the axial interval of the mecanum roller body 91 of the first mecanum roller 75B. The axial interval between the two mecanum roller bodies 91 of the second mecanum roller 76B is the same as the axial interval of the mecanum roller body 91 of the first mecanum roller 75A.

[0022] The second mecanum roller 76A includes a sixth belt pulley 94. The sixth belt pulley 94 is a belt pulley corresponding to the third belt pulley 83 and the fourth belt pulley 84. A round belt 95 is mounted on the third belt pulley 83 and the sixth belt pulley 94. A round belt 96 is mounted between the fourth belt pulley 84 and the sixth belt pulley 94.

[0023] As shown in FIG. 5(a), the round belt 96 is cross-mounted with respect to the parallel mounting of the round belt 95. Therefore, when the first mecanum roller 75A rotates in the conveying direction by the forward rotation of the electric motor 74, the second mecanum roller 76A rotates in the conveying direction. As shown in FIG. 5(b), when the first mecanum roller 75A rotates in the direction opposite to the conveying direction by the reverse rotation of the electric motor 74, the second mecanum roller 76A rotates in the conveying direction due to the cross-mounting of the round belt 96. That is, the second mecanum roller 76A rotates only in the conveying direction regardless of the forward and reverse rotations of the electric motor 74.

[0024] The second mecanum roller 76B is provided with a seventh belt pulley 97 corresponding to the sixth belt pulley 94 of the second mecanum roller 76A. A round belt 98 is mounted on the sixth belt pulley 94 and the seventh belt pulley 97. Therefore, the second mecanum roller 76B rotates together with the rotation of the second mecanum roller 76A.

[0025] The load conveying device 70 is provided with a power transmission unit 100 that transmits the power of the electric motor 74 to a plurality of mecanum roller mechanisms 72. The power transmission unit 100 includes a motor pulley 101, a driven shaft 102, an eighth belt pulley 103, a round belt 104, a ninth belt pulley 105, and a round belt 106. As shown in FIG. 4, the motor pulley 101 is provided on the output shaft 107 of the electric motor 74. The driven shaft 102 is parallel to the conveying direction and extends over the longitudinal direction of the mecanum roller conveyor 71, and is rotatably supported by the conveyor frame 73 via a bracket (not shown).

[0026] A ninth belt pulley 105 is provided on the driven shaft 102 corresponding to the mecanum roller mechanism 72. A round belt 104 is mounted on the ninth belt pulley 105 and the first belt pulley 81 of the first mecanum roller 75A. The ninth belt pulley 105 has an electromagnetic clutch 108. The ON / OFF switching of the electromagnetic clutch 108 is performed by the control device 66. The driven shaft 102 idles with respect to the ninth belt pulley 105 when the electromagnetic clutch 108 is OFF. Since the first mecanum roller 75 corresponding to the ninth belt pulley 105 that is not rotated by the idling of the driven shaft 102 does not rotate, the mecanum roller mechanism 72 is not operated. When the electromagnetic clutch 108 is ON, the ninth belt pulley 105 is rotated together with the driven shaft 102. Therefore, the first mecanum roller 75 rotates and the mecanum roller mechanism 72 operates.

[0027] The load conveying device 70 is connected to an electric motor 74 and includes a control device 66 that controls the electric motor 74. The control device 66 has a central processing unit (CPU) that executes various programs (not shown) and a storage unit that stores various programs and data. The control device 66 is connected to an electromagnetic clutch 108 and controls the ON / OFF of the electromagnetic clutch 108. The control device 66 is connected to a load detection sensor (not shown). The load detection sensor is provided at a position corresponding to the load storage unit 41 on the mecanum roller conveyor 71 in order to stop the load W on the mecanum roller conveyor 71 corresponding to the load storage unit 41, and transmits a detection signal when the load W is detected. The control device 66 detects the load W on the mecanum roller conveyor 71 upon receiving the transmission of the signal from the load detection sensor.

[0028] Further, the load conveying device 70 includes an extrusion mechanism (not shown) that extrudes the load W stored in the load storage unit 41 onto the mecanum roller conveyor 71. The load W extruded from the load storage unit 41 by the extrusion mechanism onto the mecanum roller conveyor 71 is conveyed by the mecanum roller conveyor 71 toward the shipping conveyor 15.

[0029] Next, the conveyance and delivery of the load W by the mecanum roller conveyor 71 will be described. When conveying the load W, the electric motor 74 is rotated forward, and all the electromagnetic clutches 108 are turned ON. In this case, as shown in FIG. 6(a), the first mecanum roller 75A rotates in the conveying direction. At this time, the third belt pulley 83 and the sixth belt pulley 94 rotate, and the fourth belt pulley 84 does not rotate. Therefore, the first mecanum roller 75 and the second mecanum roller 76 in the mecanum roller mechanism 72 all rotate in the conveying direction. For this reason, the load W is conveyed in the conveying direction.

[0030] When sending out the load W, the electric motor 74 is rotated in the reverse direction, the electromagnetic clutch 108 corresponding to the mecanum roller mechanism 72 that does not require the sending out of the load W is turned OFF, and the electromagnetic clutch 108 corresponding to the mecanum roller mechanism 72 that requires the sending out of the load W is turned ON. In this case, the mecanum roller mechanism 72 that does not require the sending out of the load W is not activated. In the mecanum roller mechanism 72 that requires the sending out of the load W, as shown in FIG. 6(b), the first mecanum roller 75A rotates in the direction opposite to the conveying direction.

[0031] At this time, the fourth belt pulley 84 and the sixth belt pulley 94 rotate, and the third belt pulley 83 does not rotate. Therefore, the first mecanum roller 75 in the mecanum roller mechanism 72 rotates in the direction opposite to the conveying direction, and the second mecanum roller 76 rotates in the conveying direction. The load W receives a force directed from the rollers 80 and 93 toward the storage shelf 12 due to the rotation of the first mecanum roller 75 in the direction opposite to the conveying direction and the rotation of the second mecanum roller 76 in the conveying direction. For this reason, the load W is sent out toward the load storage portion 41 by the first mecanum roller 75 and the second mecanum roller 76.

[0032] In the present embodiment, since the mecanum roller mechanism 72 serves as both a conveying mechanism and a sending-out mechanism, the power of the electric motor 74 may be transmitted to the first mecanum roller 75 and the second mecanum roller 76, and the power transmission mechanism can be simplified.

[0033] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist of the invention. For example, the following modifications may be made.

[0034] ○ In the above-described embodiment, the storage shelf is provided on one side of the conveying mechanism, but it is not limited to this. The storage shelf may be provided on both sides of the conveying mechanism. ○ In the above-described embodiment, the load is sent out to the storage shelf by the sending-out mechanism, but the sending-out destination of the load is not limited to the storage shelf. The sending-out destination of the load may be a conveyor that conveys the load, and by providing conveyors serving as sending-out destinations respectively according to the number of sending-out mechanisms, sorting and distribution of the load can be achieved. Although not described in the above embodiments, the transport mechanism may be provided with a stopper member for reliably stopping the load at a position corresponding to the load storage section. For example, a stopper member that protrudes from and retracts into the transport surface may be provided in front of the Mecanum roller on the front side in the transport direction in the transport mechanism.

Explanation of Signs

[0035] 12 Storage shelf 13 Delivery conveyor (delivery mechanism) 41 Load storage section 66 Control device 70 Load transport device 71 Mecanum roller conveyor (transport mechanism / delivery mechanism) 72 Mecanum roller mechanism 74 Electric motor (drive source) 75(75A, 75B) First Mecanum roller 76(76A, 76B) Second Mecanum roller (upstream) 77, 90 Shaft member 78, 91 Mecanum roller body 79, 92 Wheels 80, 93 Rollers 85, 86 One-way clutch 100 Power transmission section 102 Driven shaft 108 Electromagnetic clutch

Claims

【Claim 1】 A conveying mechanism that includes a drive source and conveys a load in the load conveying direction from the upstream side to the downstream side in a conveying path, A delivery mechanism that delivers the load on the conveying mechanism in a direction intersecting the conveying direction, A control device that controls the drive source, in a load conveying device comprising: A mecanum roller mechanism that serves as both the conveying mechanism and the delivery mechanism, The mecanum roller mechanism comprises: A pair of first mecanum rollers rotatable in the conveying direction and in the direction opposite to the conveying direction, A pair of second mecanum rollers rotatable only in the conveying direction, The pair of first mecanum rollers includes a downstream-side first mecanum roller located on the downstream side in the conveying direction in the mecanum roller mechanism, An upstream-side first mecanum roller located on the upstream side in the conveying direction relative to the downstream-side first mecanum roller, and the upstream-side first mecanum roller and the downstream-side first mecanum roller are rotatably connected in the same direction, The pair of second mecanum rollers includes a downstream-side second mecanum roller located between the pair of first mecanum rollers, An upstream-side second mecanum roller located on the upstream side in the conveying direction relative to the upstream-side first mecanum roller, and the upstream-side second mecanum roller and the downstream-side second mecanum roller are rotatably connected in the same direction, The first mecanum rollers and the second mecanum rollers each have: A shaft member, A pair of mecanum roller bodies supported by the shaft member, Each mecanum roller body comprises: A wheel that rotates about the axis of the shaft member, A plurality of rollers provided in series in the circumferential direction of the wheel and rotating about a rotation axis inclined at a certain angle with respect to the axis of the shaft member, The rotation axes of the rollers of the first mecanum rollers and the rotation axes of the rollers of the second mecanum rollers are substantially orthogonal, The drive source is an electric motor, A power transmission unit that transmits the power of the electric motor to the mecanum roller mechanism, The downstream first Mekanum roller includes a first one-way clutch that transmits power with respect to rotation in the conveying direction and blocks power transmission with respect to rotation in the direction opposite to the conveying direction, and a second one-way clutch that blocks power transmission with respect to rotation in the conveying direction and transmits power with respect to rotation in the direction opposite to the conveying direction. The downstream first Mekanum roller and the downstream second Mekanum roller are connected to be rotatable in the same direction via the first one-way clutch and are connected to be rotatable in the opposite direction via the second one-way clutch. When the downstream first Mekanum roller rotates in the conveying direction due to the forward rotation of the electric motor, the downstream second Mekanum roller is rotated in the conveying direction. When the downstream first Mekanum roller rotates in the direction opposite to the conveying direction due to the reverse rotation of the electric motor, the downstream second Mekanum roller is rotated in the conveying direction. The control device controls the electric motor and the power transmission unit. When the electric motor rotates forward, the upstream first Mekanum roller and the downstream first Mekanum roller are rotated in the conveying direction, and the upstream second Mekanum roller and the downstream second Mekanum roller are rotated in the conveying direction by a plurality of the one-way clutches to convey the load in the conveying direction. When the electric motor rotates reversely, the upstream first Mekanum roller and the downstream first Mekanum roller are rotated in the direction opposite to the conveying direction, and the upstream second Mekanum roller and the downstream second Mekanum roller are rotated in the conveying direction by a plurality of the one-way clutches. When the load is supported by the Mekanum roller body, a plurality of the rollers provided on the Mekanum roller body of the upstream first Mekanum roller and the Mekanum roller body of the downstream first Mekanum roller, and a plurality of the rollers provided on the Mekanum roller body of the upstream second Mekanum roller and the Mekanum roller body of the downstream second Mekanum roller are rotated in opposite directions to each other, and the load is made to receive a force from the plurality of the rollers in a direction intersecting the conveying direction, and the load is sent out in a direction intersecting the conveying direction. A load conveying device characterized by this.

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