Material handling equipment

Abstract

To provide a material conveying device that can switch material lateral positions with a simple operation and mechanism.SOLUTION: Suspender parts 6A, 6B are equipped with a rotation mechanism 60 that has a shaft part 61 extending in the vertical direction, a beam part 62 provided on the shaft part 61, and a suspender member 64 provided on the beam part 62 for suspending materials W1. The rotation mechanism 60 switches the position of the materials W1 in the lateral direction D2 by rotating the beam part 62 about the shaft part 61. In this manner, the rotation mechanism 60 can switch the position of the materials W1 in the lateral direction D2 according to the conditions around a material conveying device 100, conveying situation, etc., by simple operation of simply rotating the beam part 62 about the shaft part 61.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a material transfer device.

Background Art

[0002] Conventionally, as a material transfer device for transferring materials, the one described in Patent Document 1 is known. The material transfer device described in Patent Document 1 includes a long base. The base includes a main body portion provided with a traveling portion and an extension portion extending from an end side of the main body portion. In such a material transfer device, the material is suspended by a suspension portion provided below the long members of the main body portion and the extension portion, and the material is carried.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, in a material transfer device, there may be obstacles such as a station platform above the installation location of the material. In such a case, it is necessary to install the material while adjusting the lateral position of the material so as to avoid contact with the obstacles. Also, when the material is being transported in the longitudinal direction, the material transfer device itself may tilt. In such a case, it is necessary to adjust the lateral position of the material so that the balance of the material transfer device during material transportation can be maintained. Therefore, there has been a demand for a material transfer device capable of adjusting the lateral position of the material with a simple operation.

[0005] The present invention has been made to solve such problems, and an object thereof is to provide a material transfer device capable of adjusting the lateral position of the material with a simple operation.

Means for Solving the Problems

[0006] The material transport device according to the present invention comprises a frame having a long main body, a traveling section connected to the main body of the frame, and a suspension section below the frame capable of suspending materials. The suspension section includes a rotating mechanism having a shaft extending in the vertical direction, a beam provided on the shaft, and a suspension member provided on the beam for suspending materials. The rotating mechanism switches the lateral position of the materials by rotating the beam around the shaft. The beam section extends radially outward from the outer surface of the shaft section, and the beam section switches between a state in which it extends parallel to the longitudinal direction, which is the direction in which the frame extends, and a state in which it extends parallel to the transverse direction, which is perpendicular to the longitudinal direction in a direction parallel to the ground.

[0007] In the material handling device according to the present invention, the suspension section includes a rotating mechanism having a shaft extending in the vertical direction, a beam provided on the shaft, and a suspension member provided on the beam for suspending materials. This rotating mechanism switches the lateral position of the materials by rotating the beam around the shaft. In this way, the rotating mechanism can switch the lateral position of the materials according to the surrounding conditions of the material handling device and the handling conditions with a simple operation of rotating the beam around the shaft. Thus, the lateral position of the materials can be adjusted with a simple operation.

[0008] The suspension section includes a suspension member suspended from above, and the shaft may be located at the center of the suspension member in the lateral direction. In this case, the structure that suspends the suspension member from above, and the fluctuation of the center of gravity of the suspension member, can be suppressed before and after the position of the material is switched by the rotation mechanism.

[0009] The material handling device may have at least two suspension points in the longitudinal direction. In this case, when transporting long materials, the stability of the materials can be improved by suspending them with at least two suspension points.

[0010] If there is an obstacle that extends laterally beyond the installation surface of the material at a position higher than the installation surface, the suspension unit may lower the material to a position where it does not come into contact with the obstacle laterally, lower the material to a position lower than the obstacle, and then move the material outward laterally. In this case, the suspension unit can be positioned by tucking underneath the obstacle.

[0011] The suspension section may be equipped with at least two rotating mechanisms in the lateral direction. In this case, each rotating mechanism can individually suspend materials that are separated from each other. Furthermore, each rotating mechanism can individually adjust the position of the materials in the lateral direction.

[0012] The suspension mechanism suspends the material from the center in the lateral direction when the material is moving longitudinally, and moves the material outward in the lateral direction when it is being placed on the installation surface. For example, if the material transport device itself is tilted due to a cant on the road surface, the material can be suspended at a well-balanced position in the center when moving longitudinally, and moved to its original position when it is being placed on the installation surface.

[0013] The support frame may include an extension that can be positioned to extend longitudinally from one end of the main body. This allows the support frame to move the suspension part further away from the main body by extending the extension.

[0014] The material handling device may be provided with a lateral access section on the main body of the frame, which allows the frame to move laterally. Before lowering materials from the suspension member, the angle of the main body in the horizontal plane can be adjusted using the lateral access section. Therefore, the angle of the entire frame can be adjusted so that the frame's position matches the angle of the installation location. [Effects of the Invention]

[0015] According to the present invention, a material transport device is available that can switch the lateral position of materials with simple operation and mechanism. [Brief explanation of the drawing]

[0016] [Figure 1] It is a side view showing the material transfer device according to the first embodiment of the present invention. [Figure 2] It is a plan view of the material transfer device according to the first embodiment of the present invention. [Figure 3] Fig. 3(a) is a side view showing the state of the material transfer device during extension. Fig. 3(b) is a side view showing the extended state of the material transfer device. [Figure 4] It is a cross-sectional view taken along the line IV-IV of Fig. 1. [Figure 5] Fig. 5(a) is a cross-sectional view showing the state where the beam part is at 0°, and Fig. 5(b) is a cross-sectional view showing the state where the beam part is at 90°. [Figure 6] Fig. 6(a) is a cross-sectional view showing the state where the beam part is at 0°, and Fig. 6(b) is a cross-sectional view showing the state where the beam part is at 90°. [Figure 7] It is a cross-sectional view showing the material transfer device according to the second embodiment of the present invention. [Figure 8] It is a cross-sectional view showing the state when the material transfer device shown in Fig. 9 is tilted.

Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and duplicate descriptions are omitted.

[0018] 〔First Embodiment〕 Fig. 1 is a side view showing the material transfer device according to the first embodiment of the present invention. Fig. 2 is a plan view of the material transfer device according to the first embodiment of the present invention. Fig. 3(a) is a side view showing the state of the material transfer device during extension. Fig. 3(b) is a side view showing the extended state of the material transfer device. Fig. 4 is a cross-sectional view taken along the line IV-IV of Fig. 1.

[0019] As shown in Figures 1 and 2, the material transport device 100 is a device that suspends and transports material W1 to a predetermined position. The material transport device 100 comprises a frame 2, swivel-type traveling sections 3A and 3B (traveling section and lateral section), suspension sections 6A and 6B, and a hand-operated support section 7. The material transport device 100 travels on the ground.

[0020] The frame 2 is a long member that extends in the direction in which the material W1 is transported. The direction in which the frame 2 extends is sometimes referred to as the "longitudinal direction D1". The direction perpendicular to the longitudinal direction D1 in the direction parallel to the ground is sometimes referred to as the "lateral direction D2". In the longitudinal direction D1, the side on which the material W1 is transported is sometimes referred to as the "front", and the opposite side as the "rear". In addition, in the lateral direction D2, the side on the central position of the material transport device 100 is sometimes referred to as the "inside", and the side moving away from the central position is sometimes referred to as the "outside".

[0021] The frame 2 comprises a main body 2A, which has swivel-type travel sections 3A and 3B at both ends in the longitudinal direction D1, and an extension section 2B that can be positioned to extend from the front end of the main body 2A in the longitudinal direction D1. The extension section 2B can transition from a state where it is housed in the main body 2A (state in Figure 1) to an extended state (state in Figure 3(b)) by extending forward.

[0022] The main body 2A of the frame 2 includes a pair of elongated members 11 that extend straight in the longitudinal direction D1 at both ends in the lateral direction D2. The elongated members 11 extend at least longer in the longitudinal direction D1 than the material W1. The elongated members 11 are arranged spaced apart from each other so as to be aligned in the lateral direction D2. The extension section 2B of the frame 2 includes a pair of elongated members 12 that extend straight in the longitudinal direction D1 at both ends in the lateral direction D2. The elongated members 12 extend at least longer in the longitudinal direction D1 than the material W1. Each elongated member 12 is arranged to be housed within each elongated member 11 in a manner that allows it to move in the longitudinal direction D1. The frame 2 has an extension jack 50 that extends and retracts the extension section 2B relative to the main body 2A. The telescopic jack 50 allows adjustment of the amount by which the long member 12 of the extension section 2B extends from the long member 11 of the main body section 2A. The telescopic jack 50 is provided for each of the long members 11 and 12 on both sides. The telescopic jack 50 comprises a cylinder 51, a piston rod 52, and fixing parts 53 and 54.

[0023] The configuration of the elongated members 11 and 12 will be described in detail with reference to Figure 4. As shown in Figure 4, the elongated member 12 is made of square timber. The elongated member 11 is made of a pair of H-shaped steel beams 11A and 11B that hold the elongated member 12 by sandwiching it from both sides in the lateral direction D2. A rail 14 is provided on the upper surface of the elongated member 12, on the portion exposed from the upper flange portion of the H-shaped steel beams 11A and 11B. A rail 16 is also provided on the upper surface of the H-shaped steel beam 11A on the outside in the lateral direction D2. The rails 14 and 16 extend straight in the longitudinal direction D1.

[0024] As shown in Figure 1, the swivel-type travel units 3A and 3B are connected to both ends of the main body 2A of the frame 2 in the longitudinal direction D1. The swivel-type travel units 3A and 3B travel along the ground in the longitudinal direction D1. This allows the entire frame 2 to move in the longitudinal direction D1. The swivel-type travel units 3A and 3B each have a travel unit 20 having a support part 21 and wheels 22. The support part 21 extends downward from the elongated member 11 of the main body 2A of the frame 2. The wheels 22 are provided at the lower end of the support part 21 and contact the ground. The swivel-type travel units 3A and 3B have travel units 20 on both sides of the elongated member 11 in the lateral direction D2. In addition, the swivel-type travel units 3A and 3B each have two sets of travel units 20 in the longitudinal direction D1. Therefore, the swivel-type travel units 3A and 3B each have four travel units 20.

[0025] The wheels 22 can rotate around a rotation axis that extends vertically. Therefore, the swivel-type running sections 3A and 3B can change their direction of travel. For example, when the swivel-type running sections 3A and 3B rotate 90° from the state shown in Figure 1 (the state shown in Figure 4), they become capable of traveling in the lateral direction D2. In this case, the entire frame 2 can move in the lateral direction D2. Therefore, the swivel-type running sections 3A and 3B are provided on the main body 2A of the frame 2 and function as lateral sections that allow the frame 2 to move in the lateral direction D2.

[0026] The swivel-type travel sections 3A and 3B have an extendable mechanism 23 that can extend and retract to make contact with the ground. The extendable mechanism 23 is composed of, for example, a worm jack. The extendable mechanism 23 is provided between the front travel unit 20 and the rear travel unit. When the extendable mechanism 23 is retracted (as shown in Figure 1), the lower end of the extendable mechanism 23 is separated from the ground. In this case, the swivel-type travel sections 3A and 3B can travel without being hindered by the extendable mechanism 23. On the other hand, when the extendable mechanism 23 is extended (as shown in Figures 3(a) and 3(b)), the lower end of the extendable mechanism 23 is in contact with the ground. As a result, the main body 2A is fixed to the ground via the swivel-type travel sections 3A and 3B.

[0027] Referring to Figure 4, the configuration of the swivel-type travel unit 3B will be described in detail. Note that the swivel-type travel unit 3A has a configuration similar to that of the swivel-type travel unit 3B. The support section 21 of the travel unit 20 comprises, from top to bottom, a beam member 26, a column member 27, a height adjustment mechanism 28, a drive unit 29, a swivel shaft section 31, and a travel drive mechanism 32.

[0028] The beam member 26 extends horizontally D2 below the long member 11 of the main body 2A and the long member 12 of the extension section 2B, and supports these long members 11 and 12. The column member 27 is a member that extends downward from the outer end of the beam member 26 in the horizontal direction D2. By positioning the column member 27 to the outside in the horizontal direction D2 in this way, a wide space SP1 for suspending materials W1 can be secured between the column members 27 on both sides in the horizontal direction D2. The size of the horizontal direction D2 of this space SP1 is larger than the space between the H-shaped steel beams 11B of the long members 11 on both sides. The height adjustment mechanism 28 is provided at the lower end of the column member 27. The height adjustment mechanism 28 is a mechanism for adjusting the height position of the main body 2A from the ground.

[0029] The drive unit 29 is provided at the lower end of the height adjustment mechanism 28. The swivel shaft section 31 is a mechanism equipped with a rotating shaft (not shown) for swiveling the wheel 22. The swivel shaft section 31 comprises a rotating shaft extending in the vertical direction and a bearing section that rotatably supports the rotating shaft. The drive unit 29 provides driving force to swivel the wheel 22 via the rotating shaft of the swivel shaft section 31. The drive unit 29 has a motor housed inside its casing. The travel drive mechanism 32 is a mechanism that rotatably supports the wheel 22 with a rotating shaft 32a and provides driving force to the wheel 22 for travel. The travel drive mechanism 32 has a motor and a transmission mechanism that transmits the driving force of the motor to the wheel 22.

[0030] As shown in Figures 1 and 2, the suspension parts 6A and 6B are provided so as to be movable in the longitudinal direction D1 relative to the frame 2, and are a mechanism capable of suspending materials W1 below the frame 2. The suspension parts 6A and 6B move along the upper surfaces 2Aa and 2Ba of the main body 2A and the extension part 2B. The suspension parts 6A and 6B move along the upper surface 2Aa of the main body 2A, and then switch from the main body 2A to the extension part 2B and move along the upper surface 2Ba of the extension part 2B. The suspension parts 6A and 6B include a pair of movable parts 34, a connecting part 36, a pair of lifting parts 37, and a pair of suspension members 38. The pair of movable parts 34 are provided on both sides of the long members 11 and 12 in the lateral direction D2, respectively, and move along the long members 11 and 12 in the longitudinal direction D1. The connecting part 36 connects the pair of movable parts 34 to each other. The connecting section 36 rises upward from each movable section 34 and extends horizontally in the direction D2. The lifting section 37 is a device for winding in and unwinding the suspension member 38. This allows the lifting section 37 to raise and lower the material W1. The lifting section 37 is provided in the portion of the connecting section 36 that extends horizontally in the direction D2. The suspension member 38 extends downward from the lifting section 37 and is a member that suspends the material W1. In this embodiment, the suspension member 38 suspends the material W1 on the inside of the frame 2 in the direction D2. The detailed configuration of the suspension sections 6A and 6B will be described later.

[0031] As shown in Figure 1, the cantilever support section 7 is provided at the end 2Bb of the cantilever section 2B on the side opposite to the main body section 2A (front side) in the longitudinal direction D1, and supports the cantilever section 2B. The cantilever support section 7 comprises column members 41 extending downward from the long members 12 on both sides, and beam members 42 (see Figure 2) extending in the lateral direction D2 and connecting the long members 12.

[0032] The reachable support section 7 has a telescopic mechanism 43 that can extend and retract to make contact with the ground. The telescopic mechanism 43 is composed of, for example, a worm jack. When the telescopic mechanism 43 is retracted (as shown in Figure 1), the lower end of the telescopic mechanism 43 is separated from the ground. In this case, the reachable section 2B can move without being obstructed by the reachable support section 7. On the other hand, when the telescopic mechanism 43 is extended (as shown in Figure 3(b)), the lower end of the telescopic mechanism 43 is in contact with the ground. As a result, the reachable section 2B is fixed to the ground via the reachable support section 7.

[0033] Referring to Figure 4, the configuration of the suspension section 6B will be described in detail. Note that the suspension section 6A has a configuration similar in purpose to the suspension section 6B. The moving section 34 comprises a moving roller 34a for the main body, a moving roller 34b for the extension section, and a base section 34c. The moving roller 34a for the main body is positioned above the rail 16 of the main body 2A, and the moving roller 34b for the extension section is positioned above the rail 14 of the extension section 2B. The moving roller 34a for the main body is a roller that moves in the longitudinal direction D1 while being guided by the rail 16 of the main body 2A. The moving roller 34b for the extension section is a roller that moves in the longitudinal direction D1 while being guided by the rail 14 of the extension section 2B. When the extension section 2B moves to a point where it extends beyond the main body 2A, the moving roller 34b for the extension section comes into contact with the rail 14. As a result, the movable part 34 moves from the main body part 2A to the extension part 2B (see Figure 5). The base part 34c is a member that rotatably supports the movable roller 34a for the main body part and the movable roller 34b for the extension part.

[0034] The connecting section 36 has a column section 36a that rises upward from the base section 34c of each movable section, and a beam section 36b that connects the column sections 36c to each other. The beam section 36b extends laterally in the direction D2 at the upper end of each column section 36a. The lifting section 37 may be composed of a known hoist or the like. A pair of lifting sections 37 are movable laterally in the direction D2 along the beam section 36b. This allows the lifting section 37 to adjust the position from which the material W1 is suspended by the suspension member 38. The suspension member 38 extends downward from the lifting section 37.

[0035] The suspension section 6B includes a suspension member 58 suspended from above. The suspension member 58 is a member that extends in the lateral direction D2, and both ends are connected to the suspension member 38. As a result, the suspension member 58 is suspended from the connecting section 36 via the suspension member 38.

[0036] The suspension section 6B is equipped with a rotating mechanism 60. The rotating mechanism 60 is provided at the lower end of the suspension member 58. The rotating mechanism 60 has a shaft portion 61, a beam portion 62, a lifting portion 63, and a suspension member 64. In this embodiment, the suspension section 6B has one rotating mechanism 60.

[0037] The shaft portion 61 is a member that extends in the vertical direction. The shaft portion 61 is the member that serves as the center of rotation in the rotation mechanism 60. The shaft portion 61 is located in the center of the suspension member 58 in the lateral direction D2. The shaft portion 61 extends downward from the central position on the lower surface of the suspension member 58.

[0038] The beam portion 62 is a member provided on the shaft portion 61. The beam portion 62 extends radially outward from the outer circumferential surface of the shaft portion 61. The beam portion 62 can rotate around the shaft portion 61. The beam portion 62 can be switched between a state in which it extends parallel to the longitudinal direction D1 (as shown in Figure 6(a)) and a state in which it extends parallel to the lateral direction D2 (as shown in Figure 6(b)). The state in Figure 6(a) is sometimes referred to as the 0° state, and the state in Figure 6(b) is sometimes referred to as the 90° state. The length of the beam portion 62 is not particularly limited, but in the 90° state, the tip of the beam portion 62 may be positioned outside the lateral direction D2 beyond the suspension member 58, or outside the lateral direction D2 beyond the long member 12. The mechanism for rotating the beam portion 62 is not particularly limited; the beam portion 62 may be rotated by the rotation of the shaft portion 61 itself, or a mechanism may be provided that allows the beam portion 62 to rotate relative to the fixed shaft portion 61.

[0039] The lifting section 63 is the part that raises and lowers the material W1 by winding up and unwinding the suspension member 64. The material W1 may be raised and lowered using only the lifting section 37, only the lifting section 63, or both. The lifting section 63 is provided at the tip of the beam section 62. The suspension member 64 is provided on the beam section 62 via the lifting section 63 and is a member that suspends the material W1.

[0040] As shown in Figures 5 and 6, the rotation mechanism 60 switches the position of the material W1 in the lateral direction D2 by rotating the beam section 62 around the shaft section 61. As shown in Figures 5(a) and 6(a), in the 0° state, the tip of the beam section 62, which is the suspension position, is positioned at the same position as the shaft section 61 in the lateral direction D2. Therefore, the center position of the material W1 is positioned approximately in the center of the material conveying device 100. As shown in Figures 5(b) and 6(b), in the 90° state, the tip of the beam section 62, which is the suspension position, is positioned at a position spaced outward from the shaft section 61 in the lateral direction D2. Therefore, the center position of the material W1 is positioned outward in the lateral direction W2 from approximately in the center of the material conveying device 100. Note that as the beam section 62 rotates, the suspension position also moves to the rear, and the material W1 moves to the rear (see Figure 6(b)).

[0041] Next, referring to Figures 1, 3, and 5, the procedure for transporting material W1 by the material transport device 100 and installing material W1 will be described. The installation position H of material W1 (see Figure 3) is one level lower than other locations.

[0042] First, a material receiving process is performed to receive the material W1 and suspend it using the lifting sections 6A and 6B. In the material receiving process, as shown in Figure 1, the telescopic mechanisms 23 and 43 are retracted to prevent contact with the ground. This allows the entire frame 2 to be moved in the longitudinal direction D1 and the lateral direction D2 by the swivel-type travel sections 3A and 3B. When the material W1 is positioned in the lateral direction D2 relative to the material transport device 100, the swivel-type travel sections 3A and 3B rotate their wheels 22 toward the lateral direction D2. The swivel-type travel sections 3A and 3B travel in the lateral direction D2, moving the entire frame 2 above the material W1. The lifting sections 6A and 6B then unwind the lifting members 38 to fix the material W1, and then rewind the lifting members 38 to lift the material W1. The swivel-type travel sections 3A and 3B travel in the lateral direction D2, returning the entire frame 2 to the transport location. This completes the material receiving process.

[0043] Next, the material transport process is executed, which involves moving the entire material transport device 100 to the front in the longitudinal direction D1 to transport the material W1 to the installation position H. In this process, the wheels 22 of the swivel-type travel sections 3A and 3B are rotated toward the longitudinal direction D1, and the device travels in the longitudinal direction D1, moving the entire frame 2 toward the longitudinal direction D1. When the frame 2 arrives just before the installation position H, the frame 2 is stopped.

[0044] Next, an angle adjustment process is performed to adjust the angle of the frame 2 in the horizontal plane to match the installation position H. In this process, the angle of the frame 2 in the horizontal plane is adjusted to match the angle of the installation position H. This adjustment is performed by rotating the wheels 22 of the swivel-type running sections 3A and 3B in the lateral direction D2. At this time, by making the driving direction and amount of the wheels 22 of the front swivel-type running section 3B different from the driving direction and amount of the wheels 22 of the rear swivel-type running section 3A, fine angle adjustment of the frame 2 can be performed.

[0045] Next, as shown in Figure 3, an extension process is performed in which the extension section 2B is extended from the main body 2A of the frame 2 toward the installation position H. At this time, before extending the extension section 2B, the extension mechanism 43 of the extension support section 7 at the tip of the extension section 2B is retracted to keep it away from the ground. On the other hand, before extending the extension section 2B, the extension mechanisms 23 of the swivel-type running sections 3A and 3B are extended to make contact with the ground. This fixes the main body 2A to the ground. After that, the extension section 2B is extended from the main body 2A (Figure 3(a)), and the tip of the extension section 2B is positioned in front of the installation position H (Figure 3(b)). At this position, the extension mechanism 43 of the extension support section 7 is extended to support the lower end of the extension support section 7 on the ground.

[0046] Next, as shown in Figure 3(b), a material vertical handling process is performed in which the suspension parts 6A and 6B are moved toward the installation position H, and the material W1 is moved from the main body 2A to the extension part 2B, thereby moving the material W1 above the installation position H. In this process, as the suspension parts 6A and 6B, with the material W1 suspended, move toward the installation position H, the material transitions from being supported by the main body 2A to being supported by the extension part 2B. When the material W1 reaches the vicinity of the installation position H, the movement of the suspension parts 6A and 6B is stopped.

[0047] Next, the installation process for installing material W1 is performed. At this time, the state shown in Figure 5(a) is achieved. Here, as shown in Figure 5(b), it is assumed that a station platform SH is provided near the installation position H. Here, platform SH exists as an obstacle that extends laterally W2 relative to the installation position H of material W1 on the installation surface PF, at a position higher than the installation surface PF of material W1. In the 0° state shown in Figure 5(b), the entire material W1 is positioned towards the center of the reference position SL set at the tip of platform SH. In this state, material W1 is lowered by unwinding the suspension members 38 of the suspension parts 6A and 6B. At this time, the suspension parts 6A and 6B can lower material W1 at a position where it does not come into contact with platform SH in the lateral direction D2. The suspension parts 6A and 6B lower material W1 to a position where at least the upper surface of the beam part 62 is positioned below the lower surface of platform SH, and material W1 is higher than the installation surface PF.

[0048] As shown in Figure 5(b), after lowering the material W1 and beam 62 to a position lower than the platform SH, the suspension parts 6A and 6B move the material W1 outward in the lateral direction D2. The beam 62 rotates around the shaft 61 to a 90° position, and the suspension position of the tip of the beam 62 and the material W1 move outward in the lateral direction D2. At this time, the material W1 and a part of the beam 62 are positioned so as to tuck into the area below the platform SH. The suspension parts 6A and 6B lower the material W1 in this state and install it at the installation position H. Then, the suspension parts 6A and 6B release the fixation between the material W1 and the material W1.

[0049] Next, the operation and effects of the material transport device 100 according to this embodiment will be described.

[0050] In the material transport device 100 according to this embodiment, swivel-type travel sections 3A and 3B (lateral sections) are provided on the main body section 2A. The extension section 2B can extend in the longitudinal direction D1 from one end of the main body section 2A. Therefore, in the stage before lowering the material W1 from the suspension member 38 at the position of the extension section 2B, the angle of the main body section 2A in the horizontal plane can be adjusted using the swivel-type travel sections 3A and 3B. Thus, the angle of the entire frame can be adjusted so that the position of the extension section matches the angle of the installation position H. Here, the suspension sections 6A and 6B are equipped with a rotating mechanism 60 having a shaft section 61 extending in the vertical direction, a beam section 62 provided on the shaft section 61, and a suspension member 64 provided on the beam section 62 for suspending the material W1. This rotating mechanism 60 switches the position of the material W1 in the lateral direction D2 by rotating the beam section 62 around the shaft section 61. Thus, the rotating mechanism 60 can switch the position of the material W1 in the lateral direction D2 according to the surrounding conditions of the material conveying device 100 and the conveying conditions, simply by rotating the beam portion 62 around the shaft portion 61. Therefore, the position of the material W1 in the lateral direction D2 can be adjusted with a simple operation.

[0051] The suspension sections 6A and 6B are equipped with a suspension member 58 suspended from above, and the shaft section 61 may be located in the center of the suspension member 58 in the lateral direction D2. In this case, the structure (connecting section 36) that suspends the suspension member 58 from above, and the change in the center of gravity of the suspension member 58 can be suppressed before and after the rotation mechanism 60 switches the position of the material W1. That is, the suspension member 58 itself is suspended at both ends by the suspension members 38, and the shaft section 61 is located in the center. Therefore, whether at 0° or 90°, the suspension member 58 receives force from the shaft section 61 at the center. In this way, since there is no change in the position where force is applied to the suspension member 58, the change in the center of gravity can be suppressed.

[0052] The material transport device 100 may have at least two suspension parts 6A and 6B in the longitudinal direction D1. In this case, when transporting a long material W1, the stability of the material W1 can be improved by suspending the material W1 with at least two suspension parts 6A and 6B.

[0053] If there is a platform SH (obstacle) that protrudes laterally D2 from the installation position H of material W1 on the installation surface PF at a position higher than the installation surface PF of material W1, the suspension parts 6A and 6B may lower material W1 at a position in the lateral direction D2 where it does not come into contact with platform SH, lower material W1 to a position lower than platform SH, and then move material W1 outward in the lateral direction D2. In this case, the suspension parts 6A and 6B can be positioned at the installation position H by tucking under platform SH.

[0054] [Second Embodiment] As shown in Figure 7, the suspension sections 6A and 6B may be equipped with at least two rotating mechanisms 60 in the lateral direction. In the example shown in Figure 7, the two rotating mechanisms 60A and 60B are provided on each of the pair of elongated members 11. The shaft portion 61 is provided on the lower surface of the elongated member 11. In this case, each rotating mechanism 60A and 60B can individually suspend the materials W3 that are separated from each other. In addition, each rotating mechanism 60A and 60B can individually adjust the position of the materials W3 in the lateral direction D2.

[0055] Furthermore, this material transport device 100 has a suspension position adjustment mechanism 90 that adjusts the position of the lifting section 37 located on the outside in the lateral direction D2. The suspension position adjustment mechanism 90 comprises a support section 91, an overhanging member 92, and an extension / retraction mechanism 93. The material transport device 100 may suspend the material W3 using the suspension member 38 of the suspension position adjustment mechanism 90, or it may use the rotation mechanisms 60A and 60B.

[0056] The suspension parts 6A and 6B suspend the material W3 from the center in the lateral direction D2 when the material W3 is moving in the longitudinal direction D3, and move the material outward in the lateral direction D2 when the material W3 is being installed on the installation surface. For example, as shown in Figure 8(a), if the material transport device 100 itself is tilted due to a cant being formed on the road surface, when moving the material W3 in the longitudinal direction D1, the material W3 of the rotating mechanism 60A is suspended from a well-balanced position on the center side. As shown in Figure 8(b), when installing the material W3 of the rotating mechanism 60A on the installation surface, the material W3 can be moved to its original position outward in the lateral direction D2.

[0057] The frame 2 may include an extension section 2B that can be positioned to extend longitudinally from one end of the main body 2A. This allows the frame 2 to move the suspension sections 6A and 6B further away than the main body 2A by extending the extension section 2B.

[0058] The material transport device 100 may be provided on the main body 2A of the frame 2 and may include a lateral adjustment section that allows the frame 2 to move laterally. Before lowering materials from the suspension member 64, the angle of the main body 2A in the horizontal plane can be adjusted using the lateral adjustment section. Therefore, the angle of the entire frame 2 can be adjusted so that the position of the frame 2 matches the angle of the installation position.

[0059] The present invention is not limited to the embodiments described above.

[0060] In the embodiments described above, the swivel-type travel sections 3A and 3B had the function of both a travel section and a lateral section. Alternatively, the travel section and the lateral section may be separated into individual components.

[0061] Furthermore, the detailed configuration may be modified as appropriate, as long as it does not deviate from the spirit of the present invention.

[0062] [Form 1] A frame equipped with a long, extending main body, A traveling unit connected to the main body of the aforementioned frame, The frame is equipped with a suspension section below which materials can be suspended, The aforementioned suspension part is A shaft portion extending in the vertical direction, The beam portion provided on the shaft portion, The rotating mechanism is provided on the beam and includes a suspension member for suspending the materials, The aforementioned rotation mechanism is a material transport device that switches the lateral position of the material by rotating the beam portion around the shaft portion. [Form 2] The suspension part includes a suspension member suspended from above, The material transport device according to Embodiment 1, wherein the shaft portion is provided at the center of the suspension member in the lateral direction. [Form 3] The material transport device according to embodiment 1 or 2, having at least two of the lifting portions in the longitudinal direction. [Form 4] If there is an obstacle that protrudes laterally from the installation position of the material on the installation surface at a position higher than the installation surface of the material, The aforementioned suspension part is In the aforementioned lateral direction, the material is lowered at a position where it does not come into contact with the obstacle. A material transport device according to any one of the embodiments 1 to 3, wherein the material is lowered to a position lower than the obstacle, and then the material is moved outward in the lateral direction. [Form 5] The material transport device according to any one of embodiments 1 to 4, wherein the suspension portion comprises at least two shaft portions and rotation mechanisms in the lateral direction. [Form 6] The material transport device according to any one of the embodiments 1 to 5, wherein the suspension part suspends the material from the center in the lateral direction when the material is moving in the longitudinal direction, and moves the material outward in the lateral direction when the material is to be installed on the installation surface. [Claim 7] The material transport device according to any one of embodiments 1 to 6, wherein the frame is provided with an extension portion that can be positioned to extend in the longitudinal direction from one end of the main body in the longitudinal direction. [Form 8] A material transport device according to any one of the embodiments 1 to 7, comprising a lateral section provided on the main body of the frame, which allows the frame to move laterally. [Explanation of symbols]

[0063] 2...frame, 2A...main body, 2B...extension arm, 3A,3B...rotating travel arm (travel arm, lateral arm), 6A,6B...lifting arm, 7...extension arm support arm, 11,12...long member, 60...rotating mechanism, 61...shaft, 62...beam, 64...lifting member, 100...material transport device.

Claims

1. A frame equipped with a long, extending main body, A traveling unit connected to the main body of the aforementioned frame, The frame is equipped with a suspension section below which materials can be suspended, The aforementioned suspension part is A shaft portion extending in the vertical direction, The beam portion provided on the shaft portion, The rotating mechanism is provided on the beam and includes a suspension member for suspending the materials, The rotation mechanism rotates the beam portion around the shaft portion, thereby switching the lateral position of the material. The beam portion extends radially outward from the outer surface of the shaft portion, The beam section switches between a state in which it is positioned to extend parallel to the longitudinal direction, which is the direction in which the frame extends, and a state in which it is positioned to extend parallel to the transverse direction, which is a direction perpendicular to the longitudinal direction in a direction parallel to the ground. Material handling equipment.

2. The suspension part includes a suspension member suspended from above, The material transport device according to claim 1, wherein the shaft portion is provided at the center of the suspension member in the lateral direction.

3. The material transport device according to claim 1, having at least two of the aforementioned lifting portions in the longitudinal direction.

4. If there is an obstacle that protrudes laterally from the installation position of the material on the installation surface at a position higher than the installation surface of the material, The aforementioned suspension part is In the aforementioned lateral direction, the material is lowered at a position where it does not come into contact with the obstacle. The material conveying device according to claim 1, wherein the material is lowered to a position lower than the obstacle, and then the material is moved outward in the lateral direction.

5. The material transport device according to claim 1, wherein the suspension portion comprises at least two shaft portions and rotation mechanisms in the lateral direction.

6. The material transport device according to claim 1, wherein the suspension part suspends the material from the center in the lateral direction when the material is moving in the longitudinal direction, and moves the material outward in the lateral direction when the material is to be installed on the installation surface.

7. The material transport device according to claim 1, wherein the frame includes an extension portion that can be positioned to extend in the longitudinal direction from one end of the main body portion in the longitudinal direction.

8. The material transport device according to claim 1, further comprising a lateral section provided on the main body of the frame, which allows the frame to move laterally.

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