System and method for transporting long members

Abstract

To provide a carrier system and a carrier method capable of transporting a long member with a small number of workers.SOLUTION: A carrier system 1 for a long member includes: a movable frame 11 supporting a long member 7 and capable of inclining to one and the other side of the long member 7 in the lengthwise direction; a movable frame supporting part 12 supporting the movable frame 11; a first carrier mechanism 10 having wheels 13 connected with the movable frame supporting part 12; and a second carrier mechanism 20 having a roller part 21 detachably arranged at an end part of the frame 50 capable of loading a long member 7 and moving the long member 7 by the rotation of the roller part 21.SELECTED DRAWING: Figure 1C

Description

[Technical field]

[0001] The present disclosure relates to a system and method for transporting elongated members. [Background technology]

[0002] Conventionally, when transporting long components or heavy objects, the weight of the worker transporting the object is a burden at the location where the object is being transported, so it is known to use a transport vehicle that reduces the load by using the principle of leverage (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 52-68562 Summary of the Invention [Problem to be solved by the invention]

[0004] When transporting long components, multiple workers are required to load and unload the components even if a transport vehicle is used. This requires securing and arranging the necessary personnel for transportation. [Means for solving the problem]

[0005] The present disclosure relates to a system for transporting long members, comprising a movable stand that supports a long member and can be tilted in one or the other direction of the longitudinal direction of the long member, a support part that supports the movable stand, a first transport mechanism having wheels connected to the support part, and a second transport mechanism that has a roller part that is detachably arranged on an end of a loading platform on which the long member can be loaded, and moves the long member by rotating the roller part.

[0006] The present disclosure relates to a system for transporting long members, comprising: a second transport mechanism having a roller unit removably arranged at the end of a loading platform capable of loading long long members, and moving the long members by rotating the roller unit; and a third transport mechanism having a folding base that is temporarily fixed in an approximately horizontal direction when in use to support the long members and can be folded when not in use, and a pair of paired wheels connected to the underside of the folding base.

[0007] The present disclosure relates to a method for transporting long members, comprising a first transport step of placing a long member on a movable stand that can be tilted back and forth along the longitudinal direction of the long member and moving the long member while supported by the movable stand, and a second transport step of moving the long member by rotating a roller unit that is detachably arranged at the end of a loading platform on which the long member can be loaded.

[0008] The present disclosure relates to a method for transporting a long member, the method comprising: a second transport step of moving the long member by rotating a roller part that is detachably arranged at the end of a loading platform capable of loading the long member; and a third transport step of supporting the long member by temporarily fixing a folding stand that can be folded when not in use from a folded state to an approximately horizontal direction when in use, and transporting the long member to a predetermined position by running a pair of paired wheels connected below the folding stand. [Brief description of the drawings]

[0009] [Figure 1A] FIG. 2 is a schematic diagram illustrating a first transport mechanism according to the first embodiment. [Figure 1B] 5A to 5C are schematic diagrams illustrating loading by a first transport mechanism according to the first embodiment. [Figure 1C] 5A and 5B are schematic diagrams illustrating a second transport mechanism and a third transport mechanism according to the first embodiment. [Diagram 2] FIG. 2 is a perspective view of a first transport mechanism according to the first embodiment, as viewed from above. [Diagram 3] FIG. 2 is a side view of the first transport mechanism of the first embodiment. [Figure 4] FIG. 2 is a perspective view of a first transport mechanism according to the first embodiment, as viewed from below. [Diagram 5] FIG. 4 is a front view of the second transport mechanism according to the first embodiment. [Figure 6] 6A and 6B are diagrams illustrating a state in which a second transport mechanism of the first embodiment is used. [Figure 7] FIG. 4 is a perspective view of a third transfer mechanism according to the first embodiment. [Figure 8] FIG. 4 is a front view of a third transport mechanism according to the first embodiment. [Figure 9] FIG. 4 is a left side view of the third transport mechanism in the first embodiment. [Figure 10] FIG. 11 is a perspective view of a fourth transfer mechanism according to the second embodiment. [Figure 11] FIG. 11 is a diagram showing a state before tilting of a stand part of a fourth transport mechanism according to the second embodiment. [Figure 12] FIG. 13 is a diagram showing a state in which the stand part of the fourth transport mechanism of the second embodiment is tilted. [Figure 13] FIG. 13 is a diagram showing a state in which the stand part of the fourth transport mechanism of the second embodiment has been moved upward. [Figure 14] FIG. 11 is a perspective view showing a second transport mechanism according to a third embodiment. [Figure 15] FIG. 13 is a perspective view showing a third transport mechanism according to the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. The long member transport system 1 of this embodiment is a mechanism that enables a long member 7, such as a beam or pillar of a building, to be transported, preferably by a single person. The long member transport system 1 has a first transport mechanism 10, a second transport mechanism 20, and a third transport mechanism 30.

[0011] 1A, 1B, and 2 to 4, the first transport mechanism 10 is used, for example, to lift up a plurality of long members 7 stored in a warehouse or the like and load them onto a transport vehicle 5 such as a truck, or move them from the transport vehicle 5 to a predetermined location in the warehouse. As shown in FIG. 2, the first transport mechanism 10 has a movable platform 11, a movable platform support portion 12, and wheels 13.

[0012] The movable pedestal 11 is a platform that can be tilted in one direction and the other direction in the longitudinal direction, and supports the long member 7 placed on the upper surface. The movable pedestal 11 has a movable pedestal main body 111 and a pedestal side connecting part 112. The movable pedestal main body 111 is a thin, approximately rectangular parallelepiped plate. As shown in FIG. 3, the pedestal side connecting part 112 is a thin plate that extends perpendicular to the surface of the movable pedestal main body 111, below approximately the center in the longitudinal direction of a pair of long sides of the movable pedestal main body 111. The pedestal side connecting part 112 has a screw insertion hole (not shown) for connecting to a connecting part 124 of the movable pedestal support part 12 described later.

[0013] The movable pedestal support part 12 is a frame that connects the movable pedestal 11 to the wheels 13 described later and supports the movable pedestal 11. As shown in FIG. 4, the movable pedestal support part 12 has a frame part 121, a support leg 122, a reinforcing part 123, a connecting part 124, and an inclination restricting part 125. As shown in FIG. 2 and FIG. 3, the frame part 121 is arranged below the movable pedestal 11, and is configured by framing four square members into a rectangle having approximately the same size as the movable pedestal 11. The support leg 122 extends upward from approximately the center of the long side of the frame part 121 in the longitudinal direction toward approximately the center of the movable pedestal 11 in the longitudinal direction. The support leg 122 is arranged in a pair, extending from one and the other of a pair of long sides of the frame part 121. The reinforcing part 123 is configured by a square member that connects between the pair of support legs 122. The reinforcing portion 123 connects the lower end side and the upper end side of the supporting leg 122 in the short side direction of the frame portion 121 for reinforcement.

[0014] The connecting part 124 is disposed at the upper end of the support leg 122, and is a generally U-shaped member curved upward. An insertion hole for a screw 124a for connecting to the gantry side connecting part 112 is formed in the connecting part 124, and the screw 124a is inserted through the insertion holes of the gantry side connecting part 112 and the connecting part 124. The screw 124a fastens the gantry side connecting part 112 and the connecting part 124 with a strength that enables the inclination angle of the movable gantry 11 to be changed and does not cause instability when the elongated member 7 is placed on the movable gantry 11.

[0015] The inclination regulating part 125 is a member that suppresses the inclination of the movable base 11 within a certain range and supports the movable base 11. The inclination regulating part 125 has a regulating part main body part 1251 and a contact part 1252. The inclination regulating part 125 is disposed at the upper end of each of the pair of support legs 122. The regulating part main body part 1251 is a substantially rectangular plate that extends at the upper end of the support leg 122 in a direction intersecting the support leg 122. The regulating part main body part 1251 has the connecting part 124 directly fixed to the upper surface at the substantially central part in the longitudinal direction of the inclination regulating part 125. Therefore, the regulating part main body part 1251 is connected to the substantially central part in the longitudinal direction of the movable base 11 via the connecting part 124. The contact part 1252 is a convex part that protrudes upward from one and the other upper surfaces in the longitudinal direction of the regulating part main body part 1251. Specifically, the abutting portion 1252 is composed of a bolt 1252 a and a nut 1252 b which are fastened to a screw hole provided at the end of the restricting portion main body 1251 .

[0016] A gap is provided in the vertical direction between the upper end of the support leg 122 and the movable base 11 by connecting the base side connecting part 112 and the connecting part 124. When the movable base 11 tilts to one side or the other in the longitudinal direction, it abuts against the abutment part 1252 of the tilt restricting part 125, and further tilting is restricted.

[0017] The wheels 13 are connected to the movable gantry support part 12, and a total of four wheels 13 are attached below the four corners of the frame part 121. The wheels 13 are attached on one side of the movable gantry 11 in the longitudinal direction so that the direction of the wheels 13 can be changed relative to the frame part 121. On the other side of the movable gantry 11 in the longitudinal direction, the wheels 13 are attached so that they can move only along the longitudinal direction of the movable gantry 11. Specifically, the wheels 13 are attached to the rear surface of the frame part 121 via casters 131. The caster 131a on one side is rotatable, and the caster 131b on the other side is fixed.

[0018] 1C, the second conveying mechanism 20 is attached to the rear end of a transport vehicle 5 on which the long member 7 is loaded. The transport vehicle 5 is specifically a truck. A driver's seat 56 is disposed at the front of a body part 55 having an engine and wheels of the transport vehicle 5, and a loading platform 50 capable of loading the long member 7 is disposed on the body part 55.

[0019] As shown in FIG. 1B and FIG. 1C, the loading platform 50 has a floor 51, a side gate 52, a rear gate 53, and a gate 54. The floor 51 has a rectangular flat surface along the longitudinal direction of the transport vehicle 5. The side gate 52 is a thin, approximately rectangular plate arranged along the long side of the floor 51. The side gate 52 is rotatably fixed to the long side of the floor 51 by a hinge joint such as a hinge. The rear gate 53 is a approximately rectangular plate arranged along the short side of the rear end side of the floor 51. The rear gate 53 is rotatably fixed to the rear end of the floor 51 by a hinge joint such as a hinge. As shown in FIG. 6, since the rear gate 53 is rotatably connected to the rear end of the loading platform 50 by a hinge, a gap G is formed between the rear gate 53 and the loading platform 50 when the rear gate 53 is tilted backward and hanging down from the loading platform 50. Although not shown in the figure, the same is true between the side gates 52 and the cargo bed 50. The side gates 52 and the rear gates 53 are rotated on hinges to stand up, and then fixed to each other with hooks or the like to maintain the standing position and form the side walls of the cargo bed 50.

[0020] The torii section 54 rises upward from the front short side of the loading platform 50 and is arranged in a frame shape behind the driver's seat 56. The torii section 54 has a pair of vertical frames 541 rising upward from one and the other of the width direction of the loading platform 50, and a horizontal frame 542 extending laterally at the upper end side of the pair of vertical frames 541 so as to connect the pair of vertical frames 541. When the long member 7 is too long to be loaded in the longitudinal direction of the loading platform 50, the torii section 54 is used to place the long member 7 on the horizontal frame 542 of the torii section 54 and stack the long member 7 at an angle.

[0021] As shown in FIG. 5, the second conveying mechanism 20 has a roller unit 21, a shaft unit 22, a roller support unit 23, and an insertion unit 24.

[0022] The roller unit 21 is detachably disposed at the rear end of the loading platform 50. The roller unit 21 is substantially cylindrical and disposed along the edge of the rear end extending in the short direction of the loading platform 50. The roller unit 21 rotates with the elongated member 7 placed on the roller unit 21, thereby allowing the elongated member 7 to move on the roller unit 21.

[0023] Shaft portion 22 is formed of a cylinder longer than roller portion 21, and passes through the center of roller portion 21. Shaft portion 22 has a cylindrical shaft body 221 and a shaft stopper 222 that is disposed at the end of shaft body 221 and has an outer diameter larger than that of shaft body 221.

[0024] The roller support part 23 has a flat base part 231 that is aligned along the longitudinal direction of the roller part 21 and the shaft part 22 and that is arranged with a gap therebetween so that the roller part 21 can rotate, and a pair of bearing parts 232 that stand up from one and the other end of the base part 231. The bearing part 232 is a substantially rectangular plate that stands up from the base part 231, and has a through hole 232a formed in an upper part of the bearing part 232 through which the shaft body 221 of the shaft part 22 can be inserted. The shaft body 221 is inserted through the through hole 232a of the bearing part 232, and a shaft stopper 222 is attached to the outside of the bearing part 232, so that the shaft part 22 is rotatably held without coming off the roller support part 23.

[0025] The insertion portion 24 is a thin plate extending downward from one end in the width direction of the base 231. The insertion portion 24 is arranged on one side and the other side of the longitudinal direction of the base 231, and extends downward from one side in the lateral direction of the base 231. The insertion portion 24 is inserted into a gap G formed between the rear end of the floor 51 of the loading platform 50 and the rear gate 53. By inserting the insertion portion 24 into the gap G between the rear end of the loading platform 50 and the rear gate 53, the roller portion 21 is rotatably supported on the upper end side of the insertion portion 24. This allows the roller portion 21 to slide the long member 7 from the loading platform 50, making it possible to load and unload the cargo.

[0026] As shown in Figs. 7 to 9, the third transport mechanism 30 is a platform that transports the unloaded long member 7 to a desired destination. The third transport mechanism 30 differs from the first transport mechanism 10 in that it is foldable and can travel stably even on an unleveled road or ground. The third transport mechanism 30 has a folding platform 31, a folding platform support section 32, a pair of wheels 33, an auxiliary platform 34, and auxiliary legs 35.

[0027] When in use, the folding cradle 31 is temporarily fixed in a substantially horizontal direction so as to extend in a cantilever shape from the folding cradle support part 32 described below, and supports the long member 7. When not in use, the folding cradle 31 can be folded by changing its posture so as to follow the vertical direction. The folding cradle 31 has a folding cradle main body part 311 and a slide rail 312. The folding cradle main body part 311 is a thin, substantially rectangular parallelepiped plate. As shown in FIG. 8, the slide rail 312 is arranged along the width direction on the back surface of the folding cradle main body part 311. Two slide rails 312 are arranged with a gap between them in the longitudinal direction of the folding cradle main body part 311, and each of them extends from one end of the folding cradle main body part 311 in the width direction toward the other end, and terminates at a position not reaching the other end.

[0028] The folding rack support part 32 has a support leg 321 and a slide part 322. As shown in FIG. 7, the support leg 321 is formed by bending a steel pipe into a generally U-shape that opens downward. The support leg 321 is fixed to one side of a pair of long sides of the folding rack main body part 311. The support leg 321 has a first leg part 3211, a second leg part 3212, a connection part 3213, and an auxiliary wheel 3214. The first leg part 3211 and the second leg part 3212 extend downward from the folding rack 31 in approximately parallel relation. The second leg part 3212 is longer than the first leg part 3211 and extends downward, and the auxiliary wheel 3214 is attached only to the lower end of the second leg part 3212. The auxiliary wheel 3214 supports the folding rack 31 together with a pair of wheels 33 described later. The connection part 3213 connects the upper ends of the first leg part 3211 and the second leg part 3212, and extends along the longitudinal direction of the folding frame 31. The connection part 3213 is located above the upper surface of the folding frame 31.

[0029] The slide part 322 is attached to the upper part of the first leg part 3211 and the second leg part 3212 of the support leg 321. The slide part 322 is arranged obliquely from a position slightly below the upper ends of the first leg part 3211 and the second leg part 3212 toward the rear surface of the folding base main body part 311 of the folding base 31, and is arranged to be slidable inside the slide rail 312. The folding base 31 is folded by the slide part 322 sliding on the slide rail 312. As shown in FIG. 8, the slide part 322 is configured to be temporarily locked in a state in which the folding base 31 is held approximately horizontally by engaging a protrusion arranged on the slide part 322 with a notch 312a formed in the slide rail 312.

[0030] The pair of wheels 33 are provided, one on each side in the width direction of the folding frame 31. The pair of wheels 33 are connected to the lower part of the folding frame 31 via the folding frame support part 32. The pair of wheels 33 have a wheel part 331 and an axle part 332. The wheel part 331 has a wide width so that it can run on unpaved ground such as gravel roads and grass roads, and has a tire called a balloon tire. The wheel part 331 can be used with a low air pressure (for example, about 13.7 to 20.6 kPa). The axle part 332 is an axle part that connects the centers of the pair of wheel parts 331 and rotates.

[0031] The auxiliary stand 34 is a substantially rectangular tray-shaped stand. The auxiliary stand 34 allows the folding stand 31 to be folded and placed on the auxiliary stand 34 for transportation when transporting a heavy object such as a door. The auxiliary stand 34 is smaller in width and length than the folding stand 31. As shown in Figs. 7 to 9, the auxiliary stand 34 is formed in a substantially U-shape when viewed from the short side, and is formed by bending both ends of a rectangular plate in the short side direction so as to stand upright upward. The auxiliary stand 34 is connected to the axle part 332 by a connecting member 341 having a through hole through which the axle part 332 can rotate when placed on the axle part 332. The auxiliary stand 34 is fixed to the first leg part 3211 and the second leg part 3212 by welding.

[0032] The auxiliary legs 35 are narrow flat plates attached to the rear surface of the folding base main body 311 at a position separated in the width direction from the support legs 321. The upper end of the auxiliary legs 35 is connected to the rear surface of the folding base main body 311, and the lower end is inserted into the notch 323a formed in the wheel axle portion 323. The auxiliary legs 35 are configured by connecting two flat plate-shaped members. When the auxiliary legs 35 are not in use, they can be removed from the notch 323a of the wheel axle portion 332 and folded. When placing an object on the upper portion of the folding base 31 without moving the folding base 31, the auxiliary legs 35 can be opened to support the folding base 31.

[0033] A transport method using the above-mentioned transport system 1 for long members will be described. As shown in FIG. 1A, for example, long members 7 are stored in a warehouse or the like in a pile. When it becomes necessary to transport the long member 7 from there, an operator places the first transport mechanism 10 near the long member 7, holds one end of the long member 7, and places the middle part of the long member 7 on the movable stand 11 while the other end is supported at the position where the long member 7 is stored. Since the first transport mechanism 10 is equipped with four wheels 13, an operator holds one end of the long member 7 while the long member 7 is supported by the movable stand 11, and moves it to a predetermined place (first transport step S1).

[0034] When the long member 7 is loaded on the transport vehicle 5 and transported outside the warehouse, it is necessary to load the long member 7 on the loading platform 50 of the transport vehicle 5. As shown in FIG. 1B, the movable platform 11 is configured to be tiltable in one direction and the other direction of the long member 7, so that the worker places the long member 7 on the movable platform 11, tilts the movable platform 11, and lifts up the other end of the long member 7, and places the other end of the long member 7 on the torii section 54 of the loading platform 50. With the other end of the long member 7 supported by the torii section 54, one end of the long member 7 is lifted and placed on the loading platform 50. Thereafter, the long member 7 is fixed to the loading platform 50 (loading process S2). When loading, the second transport mechanism 20 may be used as necessary depending on the situation of surrounding objects, the length of the long member, whether it can be handled, and the like. In this case, the second conveying mechanism 20 is attached by inserting the insertion portion 24 of the second conveying mechanism 20 into the gap G between the rear end of the loading platform 50 of the transporter 5 and the rear gate portion 53 that is tilted backward and hanging down from the loading platform 50 (insertion step S3). Then, the long member 7 may be placed on the roller portion 21 and moved by the rotation of the roller portion 21 (second conveying step S4).

[0035] After the long member 7 has been transported to the destination, the long member 7 is unloaded from the platform 50. At this time, the insertion portion 24 of the second transport mechanism 20 is inserted into the gap G between the rear end of the platform 50 of the transport vehicle 5 and the rear gate portion 53 that is tilted backward and hanging down from the platform 50 (insertion step S5). With the insertion portion 24 inserted, the roller portion 21 can rotate. When unloading, one end of the long member 7 is pulled while the long member 7 is placed on the roller portion 21. The long member 7 is moved from the platform 50 by rotating the roller portion 21, and is transported (second transport step S6).

[0036] The worker places the third transport mechanism 30 behind the loading platform 50. The slide part 322 of the folding platform 31 slides within the slide rail 312, and temporarily fixes the folding platform main body 311 so that it extends in a substantially horizontal direction. Then, the long member 7 is lowered from the torii part 54 and shifted to the rear of the loading platform 50, and then the roller part 21 is rotated to slide the long member 7 and support it on the folding platform 31 (support step S7). If the worker moves away from the transport vehicle 5 while holding one end of the long member 7, the long member 7 slides on the roller part 21 and finally leaves the loading platform 50. The worker runs the pair of wheels 33 to change the direction of the long member 7 and transports the long member 7 to a predetermined position for transportation (third transport step S8). As described above, when the worker is the driver of the transport vehicle 5, loading and transportation from the warehouse are possible by the worker alone.

[0037] According to this embodiment, the following effects are achieved. The transport system 1 for the long member includes a movable platform 11 that supports the long member 7 and can be tilted in one direction and the other direction of the long member 7, a movable platform support unit 12 that supports the movable platform 11, a first transport mechanism 10 having wheels 13 connected to the movable platform support unit 12, and a second transport mechanism 20 having a roller unit 21 that is detachably arranged at the end of a loading platform 50 on which the long member 7 can be loaded, and moving the long member 7 by the rotation of the roller unit 21. The movable platform 11 that can be tilted along the longitudinal direction of the long member 7 allows the long member 7 to be placed on the movable platform 11 and transported by the principle of leverage. By arranging the second transport mechanism 20 at the rear end of the transport vehicle 5 and supporting the long member 7 on the roller unit 21, most of the load of the long member 7 can be supported by the movable platform 11. By moving the long members 7 with the second conveying mechanism 20, the long members 7 can be easily loaded onto the loading platform 50. In this way, the first conveying mechanism 10 and the second conveying mechanism 20 can reduce the load of the long members 7 on the workers, thereby reducing the physical burden on the workers. This makes it possible to reduce the number of workers deployed when transporting the long members 7, and makes it possible to transport the long members 7, which are difficult to handle, by a minimum number of workers alone. This makes it possible to improve the efficiency of transporting the long members 7.

[0038] According to this embodiment, the long member transport system 1 includes a second transport mechanism 20 having a roller unit 21 detachably arranged at an end of a platform 50 on which a long member 7 can be loaded, and moving the long member 7 by rotation of the roller unit 21, a folding base 31 that is temporarily fixed in a substantially horizontal direction when in use to support the long member 7 and is foldable when not in use, and a pair of paired wheels 33 connected to the lower side of the folding base 31. By arranging the second transport mechanism 20 at the rear end of the transport vehicle 5 and supporting the long member 7 on the roller unit 21, the long member 7 can be easily unloaded from the platform 50. The third transport mechanism 30 can be loaded on the transport vehicle 5 in a folded state and transported together with the long member 7. At the transport destination, the folding frame 31 is temporarily fixed in a substantially horizontal direction, and the long member 7 can be placed on the folding frame 31, and most of the load of the long member 7 can be supported by the folding frame 31. Then, while the long member 7 is placed on the folding frame 31, it can be moved to the final transport point by the paired wheels 33 and transported. The paired wheels 33 are composed of two wheels, which makes transportation and packaging easy. In this way, the second transport mechanism 20 and the third transport mechanism 30 can reduce the load of the long member 7 on the worker, so that the physical burden on the worker can be reduced. This allows the number of workers to be deployed when transporting the long member 7 to be reduced, and the transport work can be performed by the fewest number of workers alone. Therefore, the efficiency of transporting the long member 7 can be improved.

[0039] According to this embodiment, the second conveying mechanism 20 includes an insertion portion 24 that is inserted into a gap G formed between the rear end of the platform 50 and the rear gate portion 53 connected to the rear end. The roller portion 21 is arranged along the rear end and rotatably supported on the upper end side of the insertion portion 24. This allows the second conveying mechanism 20 to be carried between warehouses and transport vehicles 5. The second conveying mechanism 20 can be easily attached and detached by inserting the insertion portion 24 into the gap G formed between the rear end of the platform 50 of the transport vehicle 5 and the rear gate portion 53 as necessary. This makes it possible to reduce the load on the worker when loading and unloading the long member 7 onto and from the transport vehicle 5.

[0040] According to this embodiment, the method for transporting a long member includes a first transport step (S1) of placing a long member 7 on a movable platform 11 that can tilt back and forth along the longitudinal direction of the long member 7 and moving the long member 7 while supported by the movable platform 11, and a second transport step (S4) of moving the long member 7 by rotating a roller unit 21 that is detachably arranged at the end of a loading platform 50 on which the long member 7 can be loaded. This reduces the burden on workers and enables loading work to be performed by at least one worker, achieving the same effect as above.

[0041] According to this embodiment, the method for transporting a long member includes a second transport step (S6) of moving the long member 7 by rotating the roller unit 21 detachably arranged at the end of the loading platform 50 on which the long member 7 can be loaded, and a third transport step (S8) of supporting the long member 7 by temporarily fixing the folding base 31, which can be folded when not in use, in a substantially horizontal direction from its folded state when in use, and transporting the long member 7 to a predetermined position by the running of a pair of paired wheels 33 connected to the lower part of the folding base 31. This reduces the burden on workers and enables the unloading work to be performed by at least one worker, achieving the same effect as above.

[0042] According to this embodiment, the second conveying step (S4, S6) includes an insertion step (S3, S5) of inserting the insertion part 24 into the gap G formed between the rear end of the loading platform 50 and the rear gate part 53 connected to the rear end. The roller part 21, which is arranged along the rear end of the loading platform 50 and rotatably supported on the upper end side of the insertion part 24, is rotated with the long member 7 loaded thereon to convey the long member. The second conveying mechanism 20 is carried between the warehouse and the transport vehicle 5, and the insertion part 24 is inserted into the gap G formed between the rear end of the loading platform 50 of the transport vehicle 5 and the rear gate part 53 as necessary, so that the second conveying mechanism 20 can be easily attached and detached. Therefore, it is possible to reduce the load on the worker when loading and unloading the long member 7 onto and from the transport vehicle 5.

[0043] The present disclosure is not limited to the above embodiment, and any modifications, improvements, etc. that can achieve the object of the present disclosure are included in the present disclosure. The length of the roller unit 21 of the second conveying mechanism 20 may be changed as appropriate. Depending on the type of luggage to be handled, the length may be close to the width of the loading platform 50.

[0044] If necessary, depending on the arrangement of surrounding buildings and objects placed on the platform, the environment, etc. during loading and unloading, the second conveying mechanism 20 can also be installed by inserting it into the gap formed between the side gate portion 52 and the platform 50.

[0045] As shown in FIGS. 10 to 13, according to the second embodiment, a fourth transfer mechanism 40 can be used during the loading step S2 of the first embodiment.

[0046] Although not shown, when the transport vehicle is a truck with a rectangular box-shaped cargo compartment, known as a box car, or a convertible car with a cargo bed 50 covered with a frame and a sheet, as shown in Fig. 1B, the long member 7 cannot be moved so as to shift horizontally on the cargo bed 50. When a cargo compartment is mounted on the cargo bed 50, such as a box car or a convertible car, and the opening of the cargo compartment is formed only on the rear side, it is necessary to load the long member 7 by moving it only in the front-rear direction of the cargo bed 50 from the rear end side. Therefore, the fourth transport mechanism 40 has a mechanism that can move the long member 7 upward in an inclined state.

[0047] As shown in FIG. 10, the fourth transfer mechanism 40 has a base portion 41, a platform portion 42, a platform portion support portion 43, a tilt mechanism 44, a transfer mechanism 45, and a gripper portion 46.

[0048] The base portion 41 is disposed below the fourth conveying mechanism 40, and serves as a base for supporting other parts of the fourth conveying mechanism 40. The base portion 41 has a first base portion 411, a second base portion 412, a base portion support portion 413, and a plurality of wheels 414. The first base portion 411 is a long rectangular material that extends along the longitudinal direction of the long member 7 when the long member 7 is placed on the lowermost side of the base portion 41. The second base portion 412 is a long rectangular material that extends substantially parallel to the first base portion 411 at a position slightly above the first base portion 411. The second base portion 412 is shorter than the first base portion 411, and is disposed closer to the base end side in the conveying direction of the long member 7. The base portion support portion 413 is a pair of rectangular materials that are disposed at both ends of the longitudinal direction of the second base portion 412, and perpendicular to the base portion 41. The base support part 413 supports the base part 41 so that the long base part 41 does not fall to the left or right. A plurality of wheels 414 are arranged at the tip of the first base part 411 and at both ends of each of the pair of square members constituting the base support part 413. The plurality of wheels 414 are attached to the base part 41 to configure the fourth transport mechanism 40 to be movable.

[0049] The mount portion 42 is disposed at a position spaced above the base portion 41 and is a long platform extending along the base portion 41. The long member 7 is placed on the mount portion 42. The mount portion 42 has a mount base portion 421 and a roller transport portion 422.

[0050] The gantry base part 421 is a narrow, substantially rectangular parallelepiped member. Rail parts 4542 of the transport part 454, which will be described later, are arranged on both sides of the gantry base part 421 in the width direction.

[0051] The roller transport part 422 is disposed on the tip side of the frame base part 421, and is configured to be a substantially rectangular shape that is shorter in length and wider than the frame base part 421. The roller transport part 422 has a plurality of rollers 4221 and a roller support end 4222. The roller 4221 is a cylinder whose major axis is the width direction of the roller transport part 422. A plurality of rollers 4221 are disposed at intervals in the longitudinal direction of the roller transport part 422. The roller support end 4222 is disposed on one side and the other side in the width direction of the roller transport part 422, and is a flat plate extending in the longitudinal direction of the roller transport part 422. A bearing hole 4223 that supports the shaft of the roller 4221 is formed on the inner surface of the roller support end 4222 on which the roller 4221 is disposed, and supports the roller 4221. The roller transport part 422 facilitates the movement of the elongated member 7 in the longitudinal direction.

[0052] The mount support part 43 is a part that connects the base part 41 and the mount part 42 and supports the mount part 42. The mount support part 43 has a support leg 431, an auxiliary part 432, and an inclined shaft 433. The support leg 431 is a square material extending upward from the base part 41. The support leg 431 extends approximately perpendicular to the base part 41. The auxiliary part 432 extends obliquely to the base part 41 and the support leg 431. The auxiliary part 432 is a square material that reinforces the space between the base part 41 and the support leg 431 that are connected in an approximately perpendicular relationship, and one end is connected to the base part 41 and the support leg 431.

[0053] The inclined shaft 433 is disposed at the upper end of the support leg 431, and is a portion that connects the upper end of the support leg 431 and the lower surface of the pedestal portion 42. The inclined shaft 433 has a shaft portion 433a, a support leg side connection portion 433b, and a pedestal side connection portion 433c. The shaft portion 433a is a cylinder that extends along the width direction of the pedestal portion 42 on the back surface of the pedestal portion 42. The shaft portion 433a is rotatable. The support leg side connection portion 433b is connected to the upper end of the support leg 431, and is a substantially U-shaped member having a through hole through which the shaft portion 433a passes. The pedestal side connection portion 433c is connected to the back surface of the pedestal portion 42, and is a substantially U-shaped member having a through hole through which the shaft portion 433a passes. The shaft portion 433a passes through the through holes of the support leg side connection portion 433b and the pedestal side connection portion 433c, so that the pedestal portion 42 is configured to be tiltable along the longitudinal direction.

[0054] The tilting mechanism 44 is a mechanism for tilting upward the stand unit 42 on which the long member 7 is placed. The tilting mechanism 44 has a tilting mechanism handle 441, a tilting mechanism belt 442, and a tilting mechanism pressing roller 443.

[0055] The tilt mechanism handle 441 is disposed near the upper end of the auxiliary part 432. The tilt mechanism handle 441 is configured to allow an operation of winding a tilt mechanism belt 442, which will be described later, around the tilt mechanism handle 441. The tilt mechanism handle 441 has a shaft part 441a and a grip part 441b, and the shaft part 441a rotates by turning the grip part 441b. The shaft part 441a is disposed in a direction such that the longitudinal direction of the shaft part 441a is perpendicular to the longitudinal directions of the base part 41 and the stand part 42.

[0056] The tilt mechanism pressing roller 443 is a cylindrical body arranged on the base end side of the first base portion 411. The tilt mechanism pressing roller 443 is arranged such that the longitudinal direction thereof faces the same direction as the shaft portion 441a.

[0057] As shown in Figs. 11 to 13, the tilt mechanism belt 442 is connected to the shaft portion 441a of the tilt mechanism handle 441 and the lower surface of the base end of the pedestal portion 42. The tilt mechanism belt 442 is arranged to pass under the lower surface of the tilt mechanism press roller 443. As shown in Fig. 11, when the tilt mechanism belt 442 is stretched without being wound around the tilt mechanism handle 441, the pedestal portion 42 extends approximately parallel to the base portion 41. As shown in Figs. 12 to 13, when the tilt mechanism handle 441 is turned clockwise, the tilt mechanism belt 442 is wound around the shaft portion 441a of the tilt mechanism handle 441 and shortened. Then, the tilt mechanism belt 442 pulls the base end of the pedestal portion 42 downward, and the pedestal portion 42 tilts.

[0058] The transport mechanism 45 is a mechanism that transports the inclined elongated member 7 from below to above, the elongated member 7 being placed on the stand 42. The transport mechanism 45 has a transport mechanism handle 451, a transport mechanism belt 452, a transport mechanism presser roller 453, and a transport unit 454.

[0059] The transport mechanism handle 451 is disposed on the base end side of the portion connected to the support leg 431 on the rear surface of the base unit 42. The transport mechanism handle 451 is configured to allow an operation of winding a transport mechanism belt 452, which will be described later, around the transport mechanism handle 451. The transport mechanism handle 451 has a shaft portion 451a and a grip portion 451b, and the shaft portion 451a is rotated by turning the grip portion 451b. The shaft portion 451a is disposed in a direction such that the longitudinal direction of the shaft portion 451a is perpendicular to the longitudinal direction of the base unit 42.

[0060] The transport mechanism presser roller 453 is a cylindrical body arranged on the base end side of the transport mechanism handle 451 on the rear surface of the stand unit 42. The transport mechanism presser roller 453 is arranged such that the longitudinal direction thereof faces the same direction as the shaft portion 451a.

[0061] The transport section 454 is a plate material disposed on the upper surface side of the gantry 42. As shown in Figs. 10 to 13, the transport section 454 has a transport member 4541 and a rail portion 4542. The transport member 4541 is a plate material disposed to support an end of the elongated member 7, and stands in a direction substantially perpendicular to the gantry base portion 421. The transport member 4541 supports an end face at an end in the longitudinal direction of the elongated member 7. The rail portion 4542 extends along the longitudinal direction from the base end side of the gantry base portion 421 to the tip side. The rail portion 4542 extends from the base end side of the gantry base portion 421 to the base end side beyond the connection portion with the support leg 431 of the gantry 42. The transport member 4541 engages with the rail portion 4542, and the transport member 4541 is movable along the rail portion 4542.

[0062] As shown in FIGS. 11 to 13, the transport mechanism belt 452 is connected to the shaft portion 451a of the transport mechanism handle 451 and the rear surface of the transport member 4541 via the rear surface of the gantry base portion 421. The transport mechanism belt 452 abuts against the transport mechanism presser roller 453 between one and the other ends of the transport mechanism belt 452. As shown in FIG. 11, when the transport mechanism belt 452 is stretched without being wound around the transport mechanism handle 451, the transport member 4541 is located at the base end of the gantry base portion 421. As shown in FIGS. 12 to 13, when the transport mechanism handle 451 is turned clockwise, the transport mechanism belt 452 is wound around the shaft portion 451a of the transport mechanism handle 451 and shortened. Then, the transport mechanism belt 452 pulls the transport member 4541 upward. The pulled transport member 4541 moves upward while being engaged with the rail portion 4542. By the movement of the transport member 4541, the elongated member 7 placed on the stand portion 42 moves upward.

[0063] The gripping portion 46 is disposed so as to incline outward from the base end of the second base portion 412 of the base portion 41. The gripping portion 46 is a portion that is gripped when the fourth conveying mechanism 40 is moved within a warehouse or the like. The gripping portion 46 has a pair of long edges 461 that incline outward from below, and a short edge 462 that connects the pair of long edges 461. The long edges 461 extend outward from both ends of the base portion support portion 413 that is disposed on the base end side of the second base portion 412. The short edge 462 connects the upper ends of the long edges 461 together, and is a portion that is gripped by an operator.

[0064] The process of loading the long member 7 onto the loading platform 50 of the transport vehicle 5 by the fourth transport mechanism 40 will be described. The long member 7 is transported using the first transport mechanism 10 and the second transport mechanism 20, and the long member 7 is placed on the stand 42 of the fourth transport mechanism 40. At this time, the end portion on the base end side of the long member 7 is placed so as to abut against the transfer member 4541 of the transfer mechanism 45 provided on the stand 42 (loading process S9).

[0065] Next, the tilting mechanism handle 441 of the tilting mechanism 44 is operated so as to rotate. When the tilting mechanism handle 441 is turned, the tilting mechanism belt 442 is wound and the base end side of the stand unit 42 is pulled downward, so that the stand unit 42 tilts upward. The angle of the stand unit 42 is adjusted by operating the tilting mechanism handle 441. The angle is adjusted so that the long member 7 is placed on the archway portion 54 of the loading platform 50 or is placed on the loading platform 50 in a tilted state. In this way, the long member 7 is tilted upward while placed on the loading platform 42 (tilting step S10).

[0066] Next, the transport mechanism handle 451 of the transport mechanism 45 is operated so as to rotate. When the transport mechanism handle 451 is turned, the transport mechanism belt 452 is wound and the transport member 4541 moves upward, so that the tilted long member 7 is transported upward (transport step S11). When the long member 7 is sufficiently transported upward, the long member 7 is loaded in a tilted state on the loading platform 50 (loading step S12). When the fourth transport mechanism 40 is used, the long member 7 can be tilted with the tilt mechanism handle 441 and the long member 7 can be transported upward with the transport mechanism handle 451. Therefore, even when the transport vehicle 5 is a so-called box car or a covered car, which can only move the long member 7 from the rear to the front of the transport vehicle 5, loading and unloading can be performed independently.

[0067] The fourth conveying mechanism 40 may also be used when loading and unloading a transport vehicle 5 that does not have a cargo compartment as described in the first embodiment, i.e., a transport vehicle 5 in which the side gates 52 and rear gates 53 can be lowered to tilt down the side walls of the cargo platform 50, making the cargo platform 50 a flat platform.

[0068] FIG. 14 is a perspective view of the second transport mechanism 20A according to the third embodiment. In the second transport mechanism 20A, the insertion portion 24A extends downward from one side and the other side of the roller support portion 23 in the width direction. The second transport mechanism 20A differs from the first embodiment in that the pair of insertion portions 24A and the roller support portion 23 form a substantially U-shaped shape that opens downward in a side view. According to the second transport mechanism 20A, the pair of insertion portions 24A can be arranged to sandwich the thickness of the plate of the rear gate portion 53. That is, when one of the insertion portions 24A is inserted into the gap G between the rear end of the platform 50 and the rear gate portion 53, the other insertion portion 24A abuts against the drooping surface of the rear gate portion 53 in a state of being tilted backward. According to the second transport mechanism 20A, it is possible to install it more stably.

[0069] FIG. 15 is a perspective view of the third transport mechanism 30B according to the fourth embodiment. According to the fourth embodiment, the third transport mechanism 30B is different from the third transport mechanism 30 in the first embodiment in the shape of the paired wheels 33B. In the first embodiment, the paired wheels 33 have a wheel portion 331 of a balloon tire. However, if the ground on which the third transport mechanism 30B runs is flat and leveled or paved, the wheel portion 331B of a tire narrower than the balloon tire may be used. The type and width of the tire are not limited, and the tire may be replaced with one of an appropriate width using a tool. In addition, the third transport mechanism 30B may be attached with a rod-shaped handle portion 36 connected across the first leg portion 3211 and the second leg portion 3212. By holding both ends of the handle portion 36 as handles, transportation becomes easier. [Explanation of symbols]

[0070] REFERENCE SIGNS LIST 1 Long member transport system, 7 Long member, 10 First transport mechanism, 11 Movable stand, 12 Movable stand support section (support section), 13 Wheels, 20 Second transport mechanism, 21 Roller section, 24 Insertion section, 30 Third transport mechanism, 31 Folding stand, 33 Pair of wheels, 40 Fourth transport mechanism, 44 Tilt mechanism, 45 Transfer mechanism, 50 Loading platform, 53 Rear gate section

Claims

1. a first transport mechanism including a movable base that supports a long member and is tiltable in one direction and the other direction of the long member, a support unit that supports the movable base, and wheels that are connected to the support unit; a second conveying mechanism having a roller unit detachably disposed at an end of a loading platform capable of loading a long material, and moving the long material by rotation of the roller unit; The movable base of the first transport mechanism includes a movable base main body having an upper surface that is flat so as to be able to support the elongated member; The long-length member transport system further comprises an inclination regulating section arranged on the rear side of the movable base main body section and abutting the movable base main body section when the movable base main body section is inclined to regulate the inclination angle.

2. A system for transporting long members as described in claim 1, further comprising a third transport mechanism having a folding stand that is temporarily fixed in an approximately horizontal direction when in use to support the long member and that can be folded when not in use, and a pair of paired wheels connected to the underside of the folding stand.

3. a tilting mechanism for tilting the stand portion on which the elongated member is placed upward; a transfer mechanism capable of transferring the inclined elongated member from below to above, The long member transport system according to claim 1 or 2, further comprising a fourth transport mechanism that loads the long member on the loading platform in an inclined state.

4. the second conveying mechanism has an insertion portion that is inserted into a gap formed between a rear end portion of the platform and a rear gate portion connected to the rear end portion, The long member conveying system according to any one of claims 1 to 3, wherein the roller portion is arranged along the rear end portion and rotatably supported on an upper end side of the insertion portion.

5. a first conveying step of placing a long elongated member on a movable stand that can be tilted back and forth along a longitudinal direction of the elongated member and moving the elongated member while being supported by the movable stand; a second conveying step of moving the long member by rotating a roller unit that is detachably arranged at an end of a loading platform on which the long member can be loaded, The movable base includes a movable base main body having an upper surface that is flat so as to be able to support the elongated member; A method for transporting long members, comprising: a tilt regulating section arranged on the rear side of the movable pedestal main body section and abutting the movable pedestal main body section when the movable pedestal main body section tilts to regulate the tilt angle.

6. The method for transporting long members as described in claim 5, further comprising a third transport step of temporarily fixing a folding stand, which can be folded when not in use, in a folded state in an approximately horizontal direction when in use to support the long member, and transporting the long member to a predetermined position by running a pair of paired wheels connected below the folding stand.

7. a tilting step of tilting the elongated member upward while the elongated member is placed on a stand; a transfer step of transferring the inclined elongated member from below to above; 7. The method for transporting long members according to claim 5 or 6, further comprising a fourth transport step, the fourth transport step including a loading step of loading the long members on the loading platform in an inclined state.

8. The second conveying step includes an inserting step of inserting an insert portion into a gap formed between a rear end portion of the platform and a rear gate portion connected to the rear end portion, A method for transporting a long member described in any one of claims 5 to 7, wherein the long member is transported by rotating a roller portion that is arranged along the rear end portion and rotatably supported on the upper end side of the insertion portion while the long member is placed on the roller portion.

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