Rail running device for sloped terrain

Abstract

It enables stable and safe transport of long items even on steep, uneven slopes. [Solution] The rail running device for inclines comprises a non-slip rail 5 installed along the ground, a plurality of trolleys 1 that run along the rail 5, a connecting rod 50 that connects the front and rear trolleys 1 running along the rail 5, and a running mechanism that makes the plurality of trolleys 1 connected via the connecting rod 50 run along the rail 5. The trolley 1 comprises a base trolley 2 that moves along the rail 5 via wheels 6 that run on the rail 5, and a luggage platform 4 that is connected to the base trolley 2 via lifting legs 10. The connecting rod 50 is connected to the base trolley 2 via the luggage platform 4, and connects the front and rear trolleys 1.

Description

Technical Field

[0001] The present invention relates to a rail traveling device installed on a slope such as a mountain for transporting luggage, and particularly to a rail traveling device for a slope that can transport a long conveyance even on a steep slope with severe unevenness.

Background Art

[0002] For transporting luggage on a steep slope such as a mountain, a device that runs a carriage on a non-slip rail is used. A rail traveling device that connects a plurality of carriages has also been developed (Patent Document 1). The rail traveling device of Patent Document 1 can connect a plurality of carriages to transport a large number of people and luggage. Further, a rail traveling device that connects a plurality of carriages has the feature that it can also be used for transporting a long conveyance. This is because both ends of a long conveyance can be placed on the front and rear carriages for transportation.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The rail traveling device of Patent Document 1 connects the front and rear carriages with a connecting rod. The connecting rod is connected to the carriage via a joint. The joint has a structure that can connect the front and rear carriages that tilt relative to each other with a connecting rod without difficulty. The rail traveling device of this mechanism can lengthen the connecting rod, separate the front and rear carriages, and place both ends of a long conveyance on the front and rear carriages for transportation. However, on a steep slope with severe unevenness, there is a problem that the length of the conveyance that can be transported is restricted. This is because the connecting rod connected at a low position contacts the top of the slope or the rail, preventing the carriage from moving.

[0005] This disclosure was developed with the aim of further eliminating the above-mentioned shortcomings, and one of its objectives is to provide a rail travel device for inclines that can stably and safely transport long objects even on inclines. The description of the objectives and problems of this disclosure does not preclude the existence of other objectives or problems. Furthermore, the embodiments of this disclosure are not required to solve all of these problems. It is also possible to extract other problems from the description, drawings, and claims of this disclosure. [Means for solving the problem]

[0006] A rail running device for inclined ground according to one aspect of the present disclosure comprises a non-slip rail installed along the ground, a plurality of trolleys that run along the rail, a connecting rod that connects the front and rear trolleys that run along the rail, and a running mechanism that causes the plurality of trolleys connected via the connecting rod to run along the rail, wherein each trolley comprises a base trolley that moves along the rail via wheels that run on the rail, and a luggage platform connected to the base trolley via lifting legs, and the connecting rod is connected to the base trolley via the luggage platform, thereby connecting the front and rear trolleys. [Effects of the Invention]

[0007] The rail travel device for inclined terrain according to the present invention has the advantage of being able to stably and safely transport long objects even on inclined terrain. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic side view showing a rail travel device for inclined ground according to one embodiment of the present disclosure. [Figure 2] Figure 1 is a schematic plan view of the rail running device on the sloping ground, seen from above. [Figure 3] Figure 1 is a schematic bottom view of the rail running device on a sloping terrain, seen from below. [Figure 4] Figure 1 is a schematic perspective view of the rail running device on a sloping terrain, seen from below. [Figure 5] Figure 4 is a schematic perspective view of the trolley. [Figure 6] This is a schematic perspective view from above, showing an example of a trolley, luggage platform, and frame. [Figure 7] This is a schematic side view illustrating an example of using a moving frame. [Figure 8] This is an enlarged perspective view of the main part showing one embodiment of a lateral sway coupling mechanism. [Figure 9] Figure 8 is a cross-sectional perspective view of the lateral sway coupling mechanism. [Figure 10] This is a schematic side view showing another embodiment of the lateral movement coupling mechanism. [Figure 11] This is a schematic perspective view from below showing one embodiment of the lifting legs and vertical swing linkage mechanism. [Figure 12] Figure 11 is a schematic perspective view of the lifting leg and vertical swing connecting mechanism from above. [Figure 13] This is a schematic cross-sectional view showing one embodiment of the lifting leg and vertical swing connecting mechanism. [Figure 14] This is a schematic side view showing another embodiment of the lifting leg and vertical swing linkage mechanism. [Figure 15] This is a schematic side view showing another embodiment of the lifting leg and vertical swing linkage mechanism. [Figure 16] This is a schematic side view showing another embodiment of the lifting leg and vertical swing linkage mechanism. [Figure 17] This is a schematic perspective view of the wheel unit and horizontal rotation mechanism. [Figure 18] This is a schematic cross-sectional view of the horizontal rotation mechanism. [Figure 19] This is a schematic side view showing an example of the use of a rail running device on an inclined surface according to one embodiment of the present disclosure. [Figure 20] This is a schematic side view showing an example of the use of a conventional rail running device on a sloping surface. [Modes for carrying out the invention]

[0009] Hereinafter, the present invention will be described in detail based on the drawings. In the following description, terms indicating specific directions or positions (for example, "up", "down", and other terms including these terms) are used as necessary, but the use of these terms is for facilitating the understanding of the invention by referring to the drawings, and the technical scope of the present invention is not limited by the meanings of these terms. Also, parts denoted by the same reference numerals in a plurality of drawings indicate the same or equivalent parts or members. Furthermore, the embodiments shown below are specific examples of the technical idea of the present invention and do not limit the present invention below. Also, the dimensions, materials, shapes, relative arrangements, etc. of the components described below are not intended to limit the scope of the present invention only thereto without specific description, but are intended to be illustrative. Also, the content described in one embodiment or example is applicable to other embodiments or examples. Also, the sizes and positional relationships of the members shown in the drawings may be exaggerated for clarity of explanation.

[0010] The form of the present disclosure may be specified by the following configurations and features. The rail traveling device for a slope according to an embodiment of the present disclosure includes a non-slip rail installed along the ground, a plurality of carriages traveling along the rail, a connecting rod connecting the front and rear carriages traveling on the rail, and a traveling mechanism for causing a plurality of carriages connected via the connecting rod to travel along the rail. The carriage includes a base carriage that moves along the rail via wheels that travel on the rail, and a load platform connected to the base carriage via lifting legs on the base carriage. The connecting rod is connected to the base carriage via the load platform to connect the front and rear carriages. In the present disclosure, the non-slip rail refers to a rail or track having a structure and shape that transmits the driving force of the traveling mechanism without slipping, for example, engaging with irregularities, holes, openings, etc., and being clamped or held on a clamping surface, a rack type (rack-equipped rail), a hole type (perforated rail), a roller type, etc. The rack-equipped rail exemplified in the following description can reliably transmit the driving force by engaging the rack with the driving wheels of the traveling mechanism, and enables the transportation of heavy objects, long objects, and up-and-down movement on a steep slope.

[0011] The above rail traveling device has the feature of being able to stably and safely transport long conveyances on sloping ground. As illustrated in the schematic side view of FIG. 1, the rail traveling device has a structure in which a carriage is connected to a load platform via lifting legs on a base carriage, and a connecting rod is connected to a load platform disposed above the base carriage by the lifting legs, and the vertical position of the connecting rod is arranged upward from the base carriage, so that it can be separated upward from the ground of the sloping ground and the rail. For example, the connecting rod 50 in FIG. 19B is arranged about 30 cm higher than the connecting rod 950 in FIG. 20B of the comparative example to connect the front and rear carriages. Particularly when transporting long objects on a steep slope, the arrangement of the connecting rod 50 is important from the viewpoints of the safety and stability of transportation.

[0012] As a conventional device (comparative example) for transporting long objects on sloping ground, there is a rail traveling device 900 illustrated in FIGS. 20A to 20C. This device 900 connects the front and rear base carriages 902 with a connecting rod 950. This rail traveling device 900 connects the front and rear carriages 901A and 901B by connecting the connecting rod 950 to the base carriage 902, but it is difficult to travel on a steep slope with severe unevenness, particularly a downward slope, and there is also a problem of being restricted by the length and weight of the conveyance that can be transported. Since the connecting rod 950 for connecting the front and rear base carriages 902 of the rail traveling device 900 is disposed at a low position and is close to the rail 905 and the ground, the connecting rod 950 may contact the rail 905 or the ground at a steep slope, the top part, etc. Further, a linear (planar) arrangement cannot be maintained at the connecting rod 950, the base carriage 902, and the connecting part between the two, and the parallel posture of the front and rear base carriages 902 cannot be maintained, and the conveyance abuts against the bent part and the protruding part where these are bent and protruded and connected, causing a positional deviation and hindering stable and safe transportation (for example, FIG. 20A).

[0013] Furthermore, the rail running device described above has the advantage of being able to maintain a constant distance between the front and rear loading platforms when traveling on an incline, enabling stable and safe transport of goods. In the conventional rail running device 900 illustrated in Figures 20A to 20C, the connecting rod 950 connects the base bogie 902, so when the front and rear base bogies 902 travel on rails 905 with different gradients, the distance between the loading platforms (loading platforms, support parts for transported goods) placed on the base bogies 902 of the front and rear bogies 901A and 901B changes. As shown in Figures 20A to 20C, the distance between loading platforms (Y1) on a downhill slope in Figure 20A is longer than the distance between loading platforms (Y2) on a flat surface in Figure 20B, and the distance between loading platforms (Y3) on an uphill slope in Figure 20C is shorter than the distance between loading platforms (Y2) on a flat surface. The distance between loading platforms changes according to the gradient and is not uniform, with Y1 > Y2 > Y3 in Figure 20. For example, when transporting a 600cm object, the distance between the loading platforms (support points for the object) is Y1 = 477cm on a downhill slope, Y2 = 467cm on a flat surface, and Y3 = 445cm on an uphill slope. Note that the distances between loading platforms and support points are set to be shorter than the object being transported, with a margin of safety. Because the distance between the loading platforms supporting the object changes, the support points cannot firmly secure both ends of the object, and it is necessary to allow the object to move from at least one support point to accommodate the changing distance between loading platforms. For example, if the object is fixed to the support point of the rear loading platform, the support point of the front loading platform needs to variably support the protruding length of the object from the support point. Therefore, the support point of the front loading platform cannot fix or secure the object on the loading platform, making it difficult to transport the object stably. In particular, with long and heavy objects, when transporting them on steep slopes with many bumps, the center of gravity of the unsecured object may move or change, making it impossible to transport it safely in a stable position. In particular, transporting materials on a downhill slope is practically impossible from a safety standpoint. In contrast, the rail running device of this disclosure, as shown in Figures 19A to 19C, solves the above problems and can stably and safely transport long materials on inclines. For example, as illustrated in Figures 1 and 19A to 19C, the rail running device 100 has a connecting rod 50 positioned higher than the connecting rod 950 of the rail running device 900, and the connecting rod 50 is arranged and connected in a straight line while holding the front and rear trolleys 1A and 1B at a constant distance from each other.The connecting rod 50 in Figure 19B is positioned approximately 30 cm higher than the connecting rod 950 in Figure 20B. Furthermore, by connecting the front and rear trolleys 1A and 1B via the luggage platform 4, the distance between the luggage platforms 4 of the front and rear trolleys 1A and 1B can be kept constant regardless of the gradient of the rail 5 (in Figures 19A to 19C, X1 (610 cm) = X2 (610 cm) = X3 (610 cm)), allowing the transported goods to be securely fixed and secured on both the front and rear luggage platforms 4, and enabling the transported goods to be carried in a stable position. Therefore, the rail running device 100 can safely transport long and heavy transported goods in a stable position by securing and fixing them to both the front and rear luggage platforms 4, regardless of whether the gradient is uphill or downhill.

[0014] In addition to the above embodiments, a rail travel device for inclined ground according to another embodiment of the present disclosure is configured such that the luggage platform is connected to a connecting rod via a lateral swing connecting mechanism, and the lateral swing connecting mechanism holds and connects the connecting rod and the luggage platform in a straight line, thereby preventing vertical swinging of the luggage platform relative to the connecting rod, and allowing the luggage platform to swing freely relative to the connecting rod.

[0015] The rail-running device described above has the advantage of being able to stably and safely transport long loads on uneven, sloping terrain. This is because, while the load platforms on the front and rear of the vehicle are held in a straight line by connecting rods, the lateral-sway coupling mechanism prevents the load platforms from swaying vertically relative to the connecting rods, and the front and rear load platforms are connected to the connecting rods in a way that allows for relative lateral movement. In trolleys connected at different distances by connecting rods, the front and rear base trolleys run on the rails via wheels, so the base trolleys running at different distances on rails placed on a slope may experience relative lateral movement. However, because the rail-running device described above connects the load platforms to the connecting rods via the lateral-sway coupling mechanism, even when the front and rear base trolleys are swaying relative to each other, the lateral-sway coupling mechanism absorbs the relative lateral movement, preventing the load platforms from tilting and maintaining a vertical position relative to the rails, allowing for smooth, stable, and safe loading and transport of loads onto the load platforms. The rail running gear connects using coupling rods at a higher position than conventional designs, but its lateral sway coupling mechanism has the advantage of maintaining a stable posture for the luggage platform, which is positioned higher than the base bogie, while enabling smooth running.

[0016] As described above, the rail running device 900 in Figures 20A to 20C cannot maintain a straight (planar) connection between the connecting rod 950, the base bogie 902, and their connecting parts, nor can it maintain the parallel posture of the front and rear base bogies 902. As a result, the distance between the support parts of the loading platform and the transported goods changes according to the gradient and is not uniform, making it impossible to fix and secure the transported goods, and transporting on a downhill slope is practically difficult, making it impossible to transport goods safely and stably. In contrast, the rail running device described above has the advantage that the loading platform is connected to the connecting rod via a lateral swing connecting mechanism, and the lateral swing connecting mechanism holds and connects the connecting rod and the loading platform in a straight line, maintaining the parallel posture of the front and rear loading platforms, preventing vertical swinging of the loading platform relative to the connecting rod, and as described above, it can maintain the front and rear loading platforms running on an inclined surface at a constant distance from each other, and connects the front and rear loading platforms in a straight line to fix and secure the transported goods, enabling safe and stable transport.

[0017] A rail running device for inclined ground according to another embodiment of the present disclosure, in addition to the above embodiment, comprises a sway coupling mechanism comprising a rotating shaft extending in the longitudinal direction of the coupling rod and a rotating cylinder inserted into the rotating shaft so as to be rotatable without moving in the axial direction of the rotating shaft, wherein the rotating shaft is provided at the end of the coupling rod and the rotating cylinder can be fixed to the luggage platform. The above rail running device has the advantage of being able to connect the luggage platform to the coupling rod in a swaying manner by using an extremely simple structure for the sway coupling mechanism. This is because, with a simple structure in which the tip of the coupling rod is the rotating shaft of the sway coupling mechanism and the rotating cylinder is fixed to the luggage platform, the luggage platform can be connected in a swaying manner relative to the coupling rod, and the front and rear luggage platforms can be connected in a swaying manner relative to each other.

[0018] In addition to the above embodiments, other embodiments of the rail running device for inclined ground according to the present disclosure may include a vertical swing coupling mechanism in the lifting legs that allows the luggage platform to swing vertically relative to the base trolley without lateral swinging of the luggage platform relative to the base trolley. The above rail running device has the advantage that, by providing a vertical swing coupling mechanism in the lifting legs, the lifting legs connect the luggage platform to the base trolley so that it can swing vertically while maintaining a state in which the front and rear luggage platforms are connected in a straight line by the connecting rod, the front and rear base trolleys can run smoothly and effortlessly on rails with different gradients. This is because the luggage platform is connected to the base trolley so that it can swing vertically without lateral swinging of the luggage platform relative to the base trolley via the vertical swing coupling mechanism. The structure in which the base trolley connected by the connecting rod can swing vertically relative to the luggage platform has the advantage that the luggage platform can stably transport long items along rails laid in a curve with a small radius of curvature on an inclined ground with unevenness, height differences, and gradients including vertical, horizontal, and diagonal directions. When the front and rear base carriages are traveling on slopes with different gradients, the cargo platform does not sway laterally relative to the base carriages. Instead, the cargo platform maintains a perpendicular position to the rails, and the connecting rods position the cargo platform in a straight line. This absorbs the relative vertical sway of the front and rear cargo platforms, allowing for stable transport of the goods in a stable position.

[0019] In addition to the above embodiments, rail travel devices for inclined ground according to other embodiments of the present disclosure may include a horizontal rotation mechanism in which the lifting legs connect the luggage platform and the base trolley so that they can rotate horizontally relative to each other. Because the above rail travel devices are equipped with a horizontal rotation mechanism in the lifting legs, they have the advantage of being able to transport goods by arranging the luggage platform in a straight line with a connecting rod, even when the wheels of the front and rear base trolleys are traveling on rails with different gradients and directions of travel.

[0020] A rail running device for inclined ground according to another embodiment of the present disclosure, in addition to the above embodiment, includes a vertical swing coupling mechanism comprising a vertical rod, a tilting plate connected to the vertical rod and fixed to the bottom surface of the luggage platform, and a vertical swing axis connecting the tilting plate to the vertical rod so as to be tiltable, wherein the luggage platform is connected to the base trolley via the vertical rod and a horizontal rotation mechanism, and the vertical swing coupling mechanism allows the luggage platform to swing vertically relative to the base trolley with the vertical swing axis as the center of inclination. The above rail running device has the advantage of being able to swing vertically relative to the base trolley and rotate freely in a horizontal plane with a simple structure.

[0021] In other embodiments of the present disclosure, the rail travel device for inclined ground may have a cargo platform equipped with stopper walls that prevent the transported object from shifting position. The rail travel device described above has the advantage that the stopper walls define the position and orientation of the transported object, allowing the transported object to be loaded onto the cargo platform without shifting position and to be safely transported on inclined ground.

[0022] In another embodiment of the rail travel device for inclined ground according to the present disclosure, the cargo platforms, which are arranged far apart front and rear via connecting rods, can have a cargo platform spacing that allows them to carry cargo longer than 4 meters. The rail travel device described above has the advantage of being able to safely and stably transport cargo longer than 4 meters.

[0023] In another embodiment of the rail travel device for inclined ground according to the present disclosure, the luggage platform has a frame that forms a loading area for the transported goods, and the frame may have a fixed frame fixed to the luggage platform and a movable frame that is movably connected to the fixed frame and can be fixed in a predetermined position. The rail travel device described above has the feature that it can move and fix the movable frame according to the length of the transported goods to form an optimal loading area and transport the transported goods safely and stably. (Embodiment 1)

[0024] The rail running device 100 for inclined ground shown in Figures 1 to 4 comprises a plurality of trolleys 1A and 1B that travel separately in front and behind on wheels 6 along a non-slip (with rack) rail 5 installed and fixed along the ground, a connecting rod 50 that separates and connects the front and rear trolleys 1A and 1B, and a running mechanism that causes the plurality of trolleys 1A and 1B connected via the connecting rod 50 to travel along the rail 5.

[0025] The rail running device 100 for sloping terrain has the advantage of being able to safely transport long materials to high places in mountainous areas, for example, in the construction of high-voltage power line towers installed by clearing a linear path through a forest, and can be set up and used conveniently in steep mountainous areas, but its use is not limited to mountainous areas. The rail running device 100 described below can be used, for example, on uneven hilly terrain, and is ideally suited for transporting long materials on uneven ground, especially ground with steep protrusions, while fixing the non-slip rail 5, so its use is not limited to mountainous areas or mountainous regions.

[0026] The rail-running device 100 in Figure 1 connects front and rear trolleys 1A and 1B that run along a rack-equipped rail 5 (monorail) indicated by a dashed line with a connecting rod 50. The front and rear ends of a long transported object are placed on the front and rear trolleys 1A and 1B, and the front and rear trolleys 1A and 1B are towed by a running mechanism (not shown) driven by an engine or motor, allowing the long transported object to be transported on uneven, sloping ground. The rail-running device 100, in which two trolleys 1A and 1B are connected by a connecting rod 50, has the advantage of being able to transport long transported objects, for example, those 4 meters or longer, on sloping ground such as mountainous forests, as both ends of the long transported object can be placed on the front and rear trolleys 1A and 1B. The rail-running device 100 in which two trolleys 1A and 1B are connected by a connecting rod 50 is disclosed below, but the rail-running device 100 disclosed herein can transport even longer transported objects by connecting three or more trolleys 1 with a connecting rod 50. In a device that connects three or more trolleys 1, the front and rear trolleys 1 can be connected in the same structure as disclosed below. (Non-slip rail 5)

[0027] The rack-equipped rail 5 is suitable as a single-row monorail made of square pipes, with a rack fixed to the underside that can transmit the driving force of the running mechanism, allowing it to run on steep slopes without slipping. Since the monorail can transport goods by installing a single row of square pipe rails 5 on a slope, it has the advantage of reducing the area required to install the rails 5 by cutting open a predetermined width in mountainous areas, thereby reducing the cost, time, and effort required for installation, and allowing for efficient transport of goods. However, this disclosure does not limit rail 5 to a monorail, and although not shown, it can also be a device that transports long goods by running a trolley on two rows of rails. Since this device can run the trolley on two rows of rails without lateral swaying, the trolley 1 can run on rails 5 without providing a structure in which the wheels 6 grip and hold rails 5 to prevent lateral swaying. (Traction mechanism)

[0028] The running mechanism can utilize all conventional mechanisms that pull bogies 1, which are connected front and rear, and run on non-slip rails 5. The running mechanism can be connected to bogie 1 or installed on one of the bogies 1. The running mechanism can be structured to run on steep inclines of rail 5 by rotating drive gears that mesh with a rack fixed to rail 5 using a power source such as an engine or motor. The running mechanism can be driven by an operator riding on it or by remote control via wireless communication. (Cart 1)

[0029] The trolley 1 comprises a base trolley 2 that moves along the rail 5 via wheels 6 that run on the rail 5 with a rack, and a luggage platform 4 that is connected to the base trolley 2 via lifting legs 10. (Base trolley 2)

[0030] The base bogie 2 runs along the rail 5 without swaying via a wheel unit 7 consisting of multiple wheels 6 (6A, 6B, 6a, 6b). The base bogie 2, which extends along the rail 5, has wheel units 7A and 7B connected to its front and rear ends. The wheel unit 7 has a pair of wheels 6 (6A and 6a, 6B and 6b) that clamp the rail 5 from above and below, rotatably connected to a side plate 7a, and is installed along the rail 5. The wheel unit 7, with its pair of wheels 6 (6A and 6B, 6a and 6b) installed at the front and rear, clamps the square pipe of the rail 5 from above and below, enabling the base bogie 2 to run along the rail 5 without swaying. The upper end of the side plate 7a is connected and fixed to the leg rod 7b. The wheel units 7A and 7B, connected to both the front and rear ends of the base bogie 2, run along the rail 5 at almost the same gradient and direction of travel. Therefore, the wheel units 7A and 7B connected to both ends of the base bogie 2 maintain the horizontal posture of the base bogie 2 via the leg rods 7b, allowing it to run along the rail 5 without lateral swaying. The base bogie 2, with the wheel units 7A and 7B connected and fixed to both ends, can smoothly run by absorbing slight gradients and differences in direction of travel on the rail 5 through the play between the wheels 6 and the rail 5. In Figures 17 and 18, the base bogie 2 is connected to the wheel unit 7 via a horizontal rotation mechanism 30 (30B) provided on the leg rod 7b. In this base bogie 2, each of the wheel units 7A and 7B connected to both ends can smoothly run along the rail 5, which is facing different directions of travel in the horizontal plane on a curve. On rail 5, which is curved with a small radius of curvature in a horizontal plane, wheel units 7A and 7B connected to the front and rear of the base bogie 2 travel facing different directions. However, the difference in the directions of travel of the front and rear wheel units 7A and 7B can be absorbed to a certain extent by the play between rail 5 and wheel 6. The horizontal rotation mechanism 30B maintains a vertical position via leg rods 7b (vertical rods 32) and connects each wheel unit 7A and 7B to the base bogie 2 so that they can rotate freely in a horizontal plane. Along with the play between rail 5 and wheel 6, and even at radii of curvature that exceed the range that can be absorbed by the play, the front and rear wheel units 7A and 7B can travel at angles that match the rail 5 relative to the base bogie 2, allowing them to run smoothly along rail 5.Furthermore, within the range that can be absorbed by the play between the rail 5 and the wheel 6, the leg rod 7b can also be fixed to the underside of the base bogie 2 without necessarily involving the horizontal rotation mechanism 30B. (Luggage rack 4)

[0031] The cargo platform 4 is a platform for fixing and loading transported items, such as long transported items, and the loading area can be constructed with frames 4a such as rods, bars, plates, and frames. The cargo platform 4 in Figures 4 to 7 has multiple frames 4a that frame the loading area of ​​the transported items and fix and secure the transported items, and further provides stopper walls 4b on the frames 4a to prevent the transported items from shifting position, and a bottom plate 4c is provided on part of the frames 4a to load and support the transported items. The frames 4a illustrated in Figures 4 to 7 have multiple longitudinal frames 4e that extend in the longitudinal direction (direction of travel) and transverse frames 4f that extend in a direction different from the longitudinal frames 4e, such as perpendicular to the longitudinal frames 4e. In Figure 6, the longitudinal frames 4e and transverse frames 4f are connected to form a vertical frame 4h in a vertical position and a transverse frame 4i in a horizontal position. The vertical frame 4h in Figure 6 has two vertical frames 4h that are positioned vertically in the direction of travel and are located on both the left and right sides of the horizontal frame 4i, and an end frame 4m that connects the vertical frames 4h on both sides at their ends, preventing and limiting displacement of the transported objects. The horizontal frame 4i loads and supports the transported objects. The rail travel device 100 can be provided with the same or different frames 4a, stopper walls 4b, and bottom plates 4c on both the front luggage platform 4A and the rear luggage platform 4B, allowing the transported objects to be fixed and secured for safe transport in a stable position. In addition, one or more of the frames 4a, stopper walls 4b, and bottom plates 4c can be provided on either the front luggage platform 4A or the rear luggage platform 4B. This disclosure does not specify the frames 4a, etc., and all frames 4a, etc. that constitute the loading area of ​​the transported objects can be used.

[0032] The frame 4a illustrated in Figure 6 has a fixed frame 4X fixed to the cargo platform 4 and a movable frame 4Y that is movably connected to the fixed frame 4X in the direction of travel (longitudinal direction) and can be fixed at an optimal position. By changing and adjusting the fixing position of the movable frame 4Y, an optimal loading area can be formed according to the length of the transported goods. The fixed frame 4X and the movable frame 4Y can be provided on one or both of the front cargo platform 4A and the rear cargo platform 4B. Figures 7A and 7B show an example of use in which the movable frame 4Y is moved to expand or contract the loading area. The movable frame 4Y in Figure 6 is composed of multiple (3) vertical frames 4h by connecting a vertical frame 4e and multiple horizontal frames 4f. The vertical frame 4h has two vertical frames 4h on both the left and right sides that extend in the direction of travel and an end frame 4m that connects the vertical frames 4h on both the left and right sides at one end. The end frame 4m connects the left and right vertical frames 4h and is further provided with stopper walls 4b to form a stable frame, securing and supporting loading area. The movable frame 4Y is positioned on and / or within the fixed frame 4X, connected and moves and slides along the fixed frame 4X, and is fixed in a predetermined position, thereby setting an optimal loading area according to the length of the transported object. The fixed frame 4X in Figure 6 has a horizontal frame 4i in a horizontal position and a sliding support part in a vertical position relative to the horizontal frame 4i. The sliding support part supports, connects and fixes the sliding frame 4g of the movable frame 4Y (left and right vertical frames 4h) so that it can slide and move freely. The sliding support part in Figure 6 has a sliding part 4l and a vertical frame 4k that extends vertically to connect and fix the sliding part 4l, and the sliding part 4l and the vertical frame 4k constitute the left and right vertical frames 4h. The sliding frame 4g and the sliding part 4l are fixed with one or more retaining pins 4j or screws, allowing the movable frame 4Y to be easily fixed to the fixed frame 4X at a predetermined position. The fixed frame 4X may also be used to fix the movable frame 4Y with clamps or stoppers. The fixed frame 4X in Figure 6 is positioned below the movable frame 4Y, which is connected to it for mobility, and has a bottom plate 4c provided on a part of the horizontal frame 4i, and is connected to the base trolley 2 via lifting legs 10 at the bottom.

[0033] The movable frame 4Y on which the transported goods are placed is equipped with stopper walls 4b to prevent the transported goods from shifting position. The stopper walls 4b shown in Figures 5 and 6 are plate-shaped and are provided at both the front end of the front loading platform 4A and the rear end of the rear loading platform 4B, ensuring that the transported goods do not shift position in the direction of travel. Furthermore, the stopper walls 4b can be provided not only on the horizontal frame 4i but also on the vertical frame 4h. These stopper walls 4b form rectangular or U-shaped shapes at the front and rear ends and on both sides, enclosing the loading area entirely or partially to prevent the transported goods from shifting position in the direction of travel and laterally. Considering the length of the long transported goods, the loading platform 4 can be configured to move the movable frame 4Y to an optimal position and fix it to the fixed frame 4X. The movable frame 4Y is also designed to slide and move freely or detachably relative to the fixed frame 4g and to be fixed in a predetermined position, allowing it to be fixed in an optimal position according to the transported goods being loaded, thereby framing an appropriate loading area. Furthermore, by making the connecting rod 50 extendable or replaceable, the distance between the front and rear bogies 1A and 1B can be appropriately set and adjusted. (Lifting leg 10)

[0034] The lifting legs 10 are connected between the underside of the luggage platform 4 and the base trolley 2, connecting the luggage platform 4 to the base trolley 2. The lifting legs 10 in Figures 11 to 13 are provided with a vertical swing coupling mechanism 40, which connects the base trolley 2 to the luggage platform 4 so that it can swing vertically relative to it. The lifting legs 10 in Figures 11 to 13 are further provided with a horizontal rotation mechanism 30 (30A), which connects the luggage platform 4 to the base trolley 2 via the horizontal rotation mechanism 30 (30A) and the vertical swing coupling mechanism 40. The horizontal rotation mechanism 30A connects the luggage platform 4 to the base trolley 2 so that it can rotate within a plane including the surface of the base trolley 2. The vertical swing coupling mechanism 40 connects the luggage platform 4 to the base trolley 2 so that it can tilt forward and backward relative to the base trolley 2, that is, so that it can swing vertically. The luggage platform 4, which is connected to the connecting rod 50 so as to be able to swing vertically, is connected to the base trolley 2 via the lifting legs 10, and the lifting legs 10 that connect the luggage platform 4 to the base trolley 2 connect the luggage platform 4 to the base trolley 2 via the horizontal rotation mechanism 30A and the vertical swing connecting mechanism 40.

[0035] This disclosure does not specify the arrangement, connection, combination, or structure of the lifting legs 10, the vertical swing connecting mechanism 40 and vertical rod 41, and the horizontal rotation mechanism 30A. Figures 11 to 13 show one embodiment of the lifting legs 10, and Figures 14 to 16 show another embodiment. For example, the vertical swing connecting mechanism 40 can be provided on the luggage platform 4 side (Figures 11 to 14) or on the base trolley 2 side (Figures 15 and 16). The vertical rod 41 can extend and be positioned above or below the horizontal rotation mechanism 30A (Figures 11 to 16). The vertical rod 41 can connect the vertical swing connecting mechanism 40 and the horizontal rotation mechanism 30A (Figures 11 to 13 and 15), and can connect the horizontal rotation mechanism 30A to the base trolley 2 or the luggage platform 2 (Figures 14 and 16). The horizontal rotation mechanism 30A can be connected to and positioned on the base trolley 2 or the luggage platform 2 (Figures 11 to 13, 15), and can also be positioned between the vertical swing coupling mechanism 40 and the vertical rod 41 (Figures 14, 16). In Figure 13, the lifting leg 10 connects and fixes the vertical swing coupling mechanism 40 (tilting plate 42) to the luggage platform 4 from above, positions the vertical rod 41 between the tilting plate 42 and the horizontal rotation mechanism 30A, and fixes the horizontal rotation mechanism 30A to the base trolley 2. In Figure 14, the lifting leg 10 connects and fixes the vertical swing coupling mechanism 40 (tilting plate 42) to the luggage platform 4 from above, positions the horizontal rotation mechanism 30A between the tilting plate 42 and the vertical rod 41, and fixes the vertical rod 41 to the base trolley 2. In Figure 15, the lifting leg 10 has a horizontal rotation mechanism 30A connected and fixed to the luggage platform 4 from above, a vertical rod 41 positioned between the horizontal rotation mechanism 30A and the vertical swing coupling mechanism 40 (tilting plate 42), and the vertical swing coupling mechanism 40 (tilting plate 42) connected and fixed to the base trolley 2. In Figure 16, the lifting leg 10 has a vertical rod 41 fixed to the luggage platform 4 from above, a horizontal rotation mechanism 30A positioned between the vertical rod 41 and the vertical swing coupling mechanism 40 (tilting plate 42), and the vertical swing coupling mechanism 40 (tilting plate 42) connected and fixed to the base trolley 2. (Connecting rod 50)

[0036] The connecting rod 50 connects the luggage platforms 4A and 4B of the front and rear bogies 1A and 1B that run on the rail 5, and connects the front and rear bogies 1A and 1B via the luggage platforms 4A and 4B. The connecting rod 50 is connected to the front and rear luggage platforms 4A and 4B that run on the rail 5, separated front and rear, and maintains a constant distance between the luggage platforms 4 located above the base bogie 2, allowing long transported items placed on both luggage platforms 4A and 4B to be transported stably even on uneven and steep slopes. When long transported items are being transported on uneven and steep slopes, the conventional device 900 cannot move because the middle of the connecting rod 950 connecting the bogies 901A and 901B collides with protrusions on the slope or the rail 905. The rail running device 100 in Figure 1 has a unique structure in which the connecting rod 50 is not directly connected to the base bogie 2, but rather the bogie 1 is composed of the base bogie 2 and the luggage platform 4, with the luggage platform 4 positioned separately on top of the base bogie 2, and the connecting rod 50 is connected to this luggage platform 4. This eliminates the problem of the connecting rod 50 coming into contact with or colliding with protrusions on inclined ground. The connecting rod 50, positioned higher than the base bogie 2, can stably transport long items without coming into contact with or colliding with protrusions on steep inclined ground, rails 5, the ground, etc. Furthermore, the rail running device 100 shown in Figures 8 and 9 connects the connecting rod 50 to the luggage platform 4 via a lateral sway connecting mechanism 20 to absorb relative lateral sway and achieve a stable posture for the luggage platform 4. (Sway coupling mechanism 20)

[0037] The lateral swing coupling mechanism 20 connects the front and rear cargo platforms 4A and 4B to the connecting rod 50 in a straight line without vertical swinging, and connects the cargo platforms 4A and 4B to the connecting rod 50 so that they can swing freely from side to side. Furthermore, the lateral swing coupling mechanism 20 holds the center line 21 of the laterally swinging cargo platform 4 (4A, 4B) and the connecting rod 50 in a straight line, allowing the cargo platform 4 to swing from side to side. The center line 21 of the cargo platform 4 is located in the center of the cargo platform 4 extending in the front-rear direction, as shown by the dashed line in Figures 2, 3, 8, and 9. The center line 21 of the cargo platform 4, shown by the dashed line that is in a straight line with the connecting rod 50, is located below the upper surface on which the cargo is placed. Since the cargo platform 4 travels on the rail 5 without lateral swinging, the center line 21 of the cargo platform 4 is located in the center of the upper surface on which the cargo is placed in the horizontal plane. Therefore, the transported items placed on the top surface of the transport platform 4 are transported stably while maintaining a horizontal posture, preventing lateral displacement from side to side.

[0038] The lateral swing coupling mechanism 20 holds the central line 21 and the coupling rod 50 in a straight line, and connects the center line of the coupling rod 50 to the base trolley 2 as the axis of rotation for lateral swing 22, i.e., the axis of inclination that allows for lateral tilting due to rotation. The front and rear luggage platforms 4A and 4B are connected to the coupling rod 50 via the lateral swing coupling mechanism 20 so as to be able to swing freely from side to side. If the luggage platform 4 swings freely from side to side relative to the base trolley 2, the transported goods cannot be transported stably because the transported goods will shift in position in the width direction. Furthermore, if heavy transported goods move in the width direction and become uneven, causing the luggage platform 4 to tilt, it will be difficult to return to an upright position. In order to prevent the transported goods from shifting in position in the width direction, the luggage platform 4 travels on the rail 5 without tilting in the width direction. The lateral swaying of the luggage platform 4 in the width direction is suppressed and reduced by the lateral swaying coupling mechanism 20, which allows the front and rear luggage platforms 4A and 4B to sway relatively freely, and by the relative lateral swaying of the base bogie 2, which absorbs and reduces the lateral swaying of the luggage platform 4, thus enabling the luggage platform 4 to run in an upright position relative to the rail 5 without swaying.

[0039] Conventional rail running devices, which connect the luggage platform and base trolley in a structure that prevents relative lateral swaying, cannot tolerate relative lateral swaying between the two base trolleys and luggage platform that run at the front and rear of the rail, making it impossible to safely and stably transport goods. In contrast, the rail running device 100 connects two base trolleys 2A and 2B that run on rail 5 fixed to a non-horizontal, three-dimensional inclined ground, in a state that allows them to sway relative to each other, enabling smooth travel on rail 5 with different inclination and travel directions. This is because the two base trolleys 2A and 2B, which run separately at the front and rear of rail 5, are allowed to sway relative to each other while running in areas of rail 5 with different inclination directions. The lateral sway connecting mechanism 20 minimizes the lateral sway of the two luggage platforms 4A and 4B connected via the connecting rod 50, maintaining a horizontal posture that allows for stable transport of goods, while connecting the two base trolleys 2A and 2B in a state that allows them to sway relative to each other.

[0040] The lateral swing coupling mechanism 20 in Figures 8 and 9 comprises a rotating shaft 22 positioned to extend in the longitudinal direction of the connecting rod 50, and a rotating cylinder 23 into which the rotating shaft 22 is rotatably inserted without axial movement. In the lateral swing coupling mechanism 20 in Figures 8 and 9, the end of the connecting rod 50 serves as the rotating shaft 22, and the rotating shaft 22 is an integral structure with the connecting rod 50. The rotating cylinder 23 is fixed to the underside of the luggage platform 4, and the rotating shaft 22 is rotatably inserted into it. The rotating cylinder 23 in Figure 8 is a cylindrical metal cylinder and is fixed to the frame 4a of the luggage platform 4 via two metal plates 24a and 24b that are connected and welded to the underside of the frame 4a of the luggage platform 4. A stopper 25 is fixed to the rotating shaft 22, and it is inserted into the rotating cylinder 23 without axial displacement. The stoppers 25 are located at both ends of the metal cylinder that is the rotating cylinder 23 and are fixed to the rotating shaft 22, preventing axial movement of the rotating shaft 22. The lateral swing coupling mechanism 20 with the above structure allows the luggage platform 4 to be connected to the connecting rod 50 in a simple manner, enabling it to swing freely vertically. However, this disclosure does not limit the lateral swing coupling mechanism 20 to the above structure; any structure that allows the connecting rod 50 and the luggage platform 4 to be connected linearly and swing freely vertically can be used. For example, the rotating shaft 22 can be fixed to the luggage platform 4, and the rotating cylinder 23 can be fixed to the end of the connecting rod 50. This is because the end of the connecting rod 50 can be used as the rotating cylinder 23 of the lateral swing coupling mechanism 20, and the rotating shaft 22 inserted into this rotating cylinder 23 can be fixed to the luggage platform 4, allowing the luggage platform 4 to be connected to the connecting rod 50 in a swing-free manner.

[0041] The lateral swing coupling mechanism 20 allows the connecting rod 50, which is connected to the cargo platform 4 without vertical swinging, to maintain the front and rear cargo platforms 4A and 4B, which are connected to both ends, in a straight line as they travel along the rail 5. The front and rear cargo platforms 4A and 4B, which are connected in a straight line, can transport long, straight-extending transported items while maintaining a stable posture without deformation. The lateral swing coupling mechanism 20 allows relative lateral swinging of the front and rear cargo platforms 4A and 4B, absorbs the lateral swinging of the front and rear cargo platforms 4A and 4B, maintains a constant loading area, and does not place an excessive load on the transported items, so that the transported items can be secured to the frame 4a and transported safely. The front and rear cargo platforms 4A and 4B, which are freely swaying on the connecting rod 50 via the lateral swing coupling mechanism 20, have their relative lateral swinging caused by traveling along the rail 5 on a three-dimensional inclined surface absorbed by the lateral swing coupling mechanism 20 and are connected in a straight line by the connecting rod 50. The front and rear bogies 1A and 1B, which run on rails 5 fixed to a three-dimensional inclined surface, move with relative lateral swaying. This is because the front and rear bogies 1A and 1B move with a tilt in the direction that causes them to sway relative to each other. A structure that simply connects the cargo platform to the base bogie in a way that allows for lateral swaying can absorb a certain degree of lateral swaying of the front and rear cargo platforms, but this structure has the drawback that the swaying cargo platform will sway depending on the position of the transported goods; in other words, if the transported goods are unevenly distributed on one side, the platform will tilt downwards toward the position where the goods are placed. Furthermore, especially with heavy goods, if the cargo platform tilts, it becomes difficult to return to an upright position, which is a drawback. In contrast, the lateral sway coupling mechanism 20, which connects the front and rear luggage platforms 4A and 4B with a connecting rod 50 so that they can sway relative to each other, absorbs the relative lateral sway of the luggage platforms 4A and 4B, and connects each luggage platform 4A and 4B to the base trolley 2 in a state where they can be transported stably. This prevents and avoids the luggage platform 4 from tilting or tipping over when the transported goods are loaded unevenly to one side, and also eliminates the problem of difficulty in righting it to an upright position after it has tilted. Therefore, the luggage platform 4 connected to the connecting rod 50 via the lateral sway coupling mechanism 20 does not sway along with the base trolley 2, and does not tilt or tip over when the transported goods are loaded unevenly to one side. It also has the advantage of always arranging the luggage platforms 4A and 4B and the connecting rod 50 in a straight line, allowing for the transport of long items.

[0042] The lateral swing coupling mechanism 20 can be used in any structure that linearly connects the front and rear luggage platforms 4A and 4B to the connecting rod 50 without vertical swinging, and connects the front and rear luggage platforms 4A and 4B to the connecting rod 50 so that they can swing laterally relative to each other. As shown in Figure 7, the lateral swing coupling mechanisms 20A and 20B can be provided at both ends of the connecting rod 50 so that the front and rear luggage platforms 4A and 4B can be connected so that they can swing laterally relative to each other. For example, both ends of the connecting rod 50 can be used as pivot axes 22 and rotatably inserted into rotating cylinders 23 fixed to the front and rear luggage platforms 4A and 4B, respectively, so that the front and rear luggage platforms 4A and 4B can swing laterally relative to each other, and the lateral swing coupling mechanisms 20A and 20B can absorb the lateral swing of the luggage platforms 4A and 4B. Furthermore, the lateral swing coupling mechanism 20 (20A or 20B) is provided at one end of the connecting rod 50, either the front or rear end, and the other end is connected and fixed to the luggage platform 4 without the lateral swing coupling mechanism 20 being provided at the other end, allowing one of the front and rear luggage platforms 4A and 4B to swing freely relative to the other. For example, the lateral swing coupling mechanism 20A or 20B has one end of the connecting rod 50 as a pivot shaft 22 and is rotatably inserted into a rotating cylinder 23 fixed to one of the luggage platforms 4A or 4B, allowing one of the front and rear luggage platforms 4A and 4B to swing freely relative to the other, and the lateral swing of the luggage platforms 4A and 4B can be absorbed by the lateral swing coupling mechanism 20A or 20B provided on one side. Moreover, the lateral swing coupling mechanism 20 can be provided at a location other than the end of the connecting rod 50, and can rotatably connect either the pivot shaft 22 or the rotating cylinder 23, or both. For example, the lateral sway coupling mechanism 20X shown in Figure 10 has a coupling part 51 provided in the center of the coupling rod 50 that rotatably connects a coupling rod 50A fixed to the front luggage platform 4A and a coupling rod 50B fixed to the rear luggage platform 4B. The coupling part 51 has a rotating cylinder 23A fixed to the front coupling rod 50A, a rotating cylinder 23B fixed to the rear coupling rod 50B, and a rotating shaft 22X that rotatably connects the rotating cylinders 23A and 23B. The coupling part 51 can connect the front and rear luggage platforms 4A and 4B to each other, or one relative to the other, allowing for lateral sway, and the lateral sway coupling mechanism 20X can absorb the relative lateral sway of the luggage platforms 4A and 4B.The connecting section 51 may also have a rotating shaft 22 fixed to the front luggage platform 4A, a rotating shaft 22 fixed to the rear luggage platform 4B, and a rotating cylinder 23 that rotatably connects these rotating shafts 22. (Horizontal rotation mechanism 30)

[0043] The horizontal rotation mechanism 30 connects the members to be connected so that they can rotate horizontally relative to each other. The horizontal rotation mechanism 30 in Figure 1 has a horizontal rotation mechanism 30A provided on the lifting leg 10 and a horizontal rotation mechanism 30B provided on the leg rod 7b. The horizontal rotation mechanism 30A is provided on the lifting leg 10 and connects the luggage platform 4 and the base trolley 2 so that they can rotate horizontally. The horizontal rotation mechanism 30A allows the base trolley 2 to rotate horizontally relative to the luggage platform 4, maintaining the orientation of the luggage platform 4 facing the direction of travel, and also absorbs the difference in the direction of travel of the front and rear trolleys 1A and 1B (base trolleys 2A and 2B) to maintain the orientation of the front and rear luggage platforms 4A and 4B facing the direction of travel. The horizontal rotation mechanism 30 can further connect the base trolley 2 and the wheel unit 7 so that they can rotate horizontally by providing the horizontal rotation mechanism 30B on the base trolley 2. The horizontal rotation mechanism 30B is provided between the wheel units 7A and 7B connected to the front and rear ends of the base bogie 2. It absorbs the difference in direction of each wheel unit 7A and 7B, which face different directions of travel along the rail 5 that curves with a small radius of curvature, allowing the bogie 2 to run smoothly along the curved rail 5 and stabilizing the posture of the base bogie 2. In Figures 1, 12, and 17, the horizontal rotation mechanism 30 (30A, 30B) is provided connected to the upper and lower parts of the base bogie 2.

[0044] The horizontal rotation mechanism 30A connects the lifting legs 10 to the base trolley 2 so that they can rotate within a plane including the upper surface of the base trolley 2. The luggage platform 4, with the lifting legs 10 connected to the base trolley 2 via the horizontal rotation mechanism 30A, can smoothly travel on the two base trolleys 2A and 2B in different directions, so that long transported items can be placed on both ends of the two luggage platforms 4A and 4B and transported smoothly without strain. The horizontal rotation mechanism 30A in Figure 13 connects the lifting legs 10 to the base trolley 2 via a bearing 31. The horizontal rotation mechanism 30A illustrated in Figure 13 includes a bearing 31 stacked in two layers, a vertical rod 32 pressed into the inside of the inner ring of the bearing 31, and an upward-facing base cylinder 33 pressed into the outer edge of the outer ring of the bearing 31. The vertical rod 32 also serves as the vertical rod 41 of the vertical swing coupling mechanism 40 and is connected to the base trolley 4 via the upper vertical swing coupling mechanism 40, while the upward-facing base cylinder 33 is fixed to the upper surface of the base trolley 2. In the horizontal rotation mechanism 30A shown in Figure 13, bearings 31 are stacked in two layers, upper and lower. The lower end of the vertical rod 32 is press-fitted into the inner ring of the bearing 31 for fixation, and the outer edge of the outer ring of the bearing 31 is press-fitted into the inner cylinder (upward-facing base cylinder 33) of the base trolley 2 for fixation. The horizontal rotation mechanism 30A shown in Figure 13 stacks bearings 31 in multiple layers, increasing the load-bearing capacity acting on the vertical rod 32 in the axial direction. The horizontal rotation mechanism 30A described above uses radial bearings, but is not limited to this, and any mechanism that allows the luggage platform 4 to rotate freely in the horizontal plane on the base trolley 2 can be used. For example, thrust bearings can be used instead of radial bearings. The thrust bearing allows the vertical rod to rotate smoothly in the horizontal plane while supporting the load of the loading platform acting horizontally.

[0045] The structure in which the lifting legs 10 rotatably connect the horizontal rotation mechanism 30A to the base trolley 2 allows the luggage platform 4 to rotate freely within a plane including the top surface of the base trolley 2, enabling the wheels 6 of the front and rear base trolleys 2A and 2B to run smoothly and effortlessly along the rail 5 laid on the ground with a small radius of curvature. However, if the rail 5 is laid on the ground with a large radius of curvature, the play between the wheels 6 of the trolley 1 and the rail 5 allows the front and rear base trolleys 2 to run along the rail 5, so the lifting legs 10 can be connected to the base trolley 2 without providing the horizontal rotation mechanism 30A.

[0046] The horizontal rotation mechanism 30B, provided on the underside of the base bogie 2 as shown in Figures 17 and 18, connects the wheel unit 7 to the base bogie 2 so that it can rotate relative to it in the horizontal plane. The horizontal rotation mechanism 30B illustrated in Figure 18 comprises a bearing 31 stacked in two layers, a vertical rod 32 pressed into the inside of the inner ring of the bearing 31, and a downward-facing base cylinder 34 pressed into the outer edge of the outer ring of the bearing 31. The vertical rod 32 is connected to the wheel unit 7, and the downward-facing base cylinder 34 is fixed to the underside of the base bogie 2. (Vertical sway coupling mechanism 40)

[0047] The vertical swing coupling mechanism 40 allows the base trolley 2 to swing vertically relative to the luggage platform 4, thereby connecting the base trolley 2 to the luggage platform 4. The vertical swing coupling mechanism 40 prevents the luggage platform 4 from swinging laterally relative to the base trolley 2, while allowing the base trolley 2 to swing vertically relative to it, thereby absorbing the gradient and inclination of the rail 5 and enabling smooth running along the rail 5. The trolley 1 in Figures 11 to 13 is equipped with the vertical swing coupling mechanism 40 and the horizontal rotation mechanism 30A on the lifting leg portion 10, and the horizontal rotation mechanism 30A is provided between the vertical swing coupling mechanism 40 and the base trolley 2.

[0048] The vertical swing coupling mechanism 40 connects the front and rear base bogies 2A and 2B to the luggage platforms 4A and 4B in a manner that allows for vertical swinging, even when the front and rear base bogies 2A and 2B are traveling on rails 5 with different gradients. The two bogies 1A and 1B, which are connected to the luggage platforms 4A and 4B via the coupling rod 50, may have the front and rear base bogies 2A and 2B traveling on rails 5 with different inclination angles. In this state, the two base bogies 2A and 2B travel on rails 5 at relatively different inclination angles. The vertical swing coupling mechanism 40 adjusts the inclination angle of the base bogies 2A and 2B relative to the luggage platforms 4A and 4B, while arranging the front and rear luggage platforms 4A and 4B in a straight line with respect to the coupling rod 50, even when the two base bogies 2A and 2B are traveling on rails 5 at different inclination angles.

[0049] The rail running device 100 shown in Figures 11 and 12 is equipped with a vertical swing coupling mechanism 40 on the lifting legs 10, which connects the luggage platform 4 to the base trolley 2 so that it can swing vertically. The vertical swing coupling mechanism 40, while arranging the front and rear luggage platforms 4A and 4B in a straight line with the coupling rod 50, allows the front and rear base trolleys 2A and 2B to run smoothly and effortlessly on rails 5 with different gradients, and maintains a stable posture for the front and rear luggage platforms 4A and 4B. The rail running device 100 described above has the advantage of being able to fix the rail 5 on uneven and sloping ground and stably transport long items.

[0050] The vertical swing coupling mechanism 40 comprises a vertical rod 41, a tilting plate 42 connected to the vertical rod 41 and fixed to the bottom surface of the luggage platform 4 in a vertical position extending forward and backward, and a vertical swing axis 43 that connects the tilting plate 42 to the vertical rod 41 so that it can tilt. In the vertical swing coupling mechanism 40 shown in Figures 11 to 13, the tilting plate 42 is fixed to the bottom surface of the luggage platform 4 in a vertical position extending forward and backward, and the vertical swing axis 43 is used as the center of inclination in the vertical swing direction (center of inclination), connecting the luggage platform 4 to the base trolley 2 so that it can swing vertically relative to it. The vertical rod 41 is fixed to the support legs, and the vertical swing coupling mechanism 40 connects the luggage platform 4 to the base trolley 2 via a horizontal rotation mechanism 30A. The vertical rod 41 and the tilting plate 42 are positioned vertically to the base trolley 2 and parallel to the direction of travel so that the luggage platform 4 can swing vertically without lateral swinging.

[0051] The rail running device 100 positions the front and rear luggage platforms 4A and 4B directly above the rail 5 and connects them so as to maintain a vertical position relative to the rail 5, in order to prevent the luggage platform 4 from tilting and to maintain a horizontal position. In Figures 1, 11, and 12, the respective trolleys 1A and 1B maintain a vertical position relative to the rail 5 via the lifting legs 10, the vertical rods 41 of the vertical swing coupling mechanism 40, and the vertical rods 32 of the horizontal rotation mechanism 30A. Furthermore, the rail running device 100 in Figure 1, via the lifting legs 10, vertical swing coupling mechanism 40, horizontal rotation mechanism 30 (30A, 30B), and wheel unit 7, absorbs the relative differences between the front and rear bogies 1A, 1B, base bogies 2A, 2B, luggage platforms 4A, 4B, base bogie 2 with respect to bogie 1, and wheel units 7A, 7B. This ensures that luggage platforms 4A, 4B are stably supported without tilting, maintaining a horizontal posture for luggage platforms 4A, 4B and enabling smooth running. [Industrial applicability]

[0052] The rail travel device for inclines described herein can be installed in mountainous areas and other locations, and can be conveniently used as a rail travel device for inclines that can stably transport long objects even on steep and uneven inclines. [Explanation of Symbols]

[0053] 100, 900... Rail running gear 1, 1A, 1B... Trolley 2, 2A, 2B... Base trolley 4, 4A, 4B... Luggage racks 4X…Fixed frame 4Y...Movement Frame 4a...frame 4b... Stopper wall 4c…Bottom plate 4e…Vertical frame 4f…Horizontal frame 4g…Sliding frame 4h... Vertical frame 4i… Horizontal frame 4j... retaining pin 4K…Vertical Frame 4l…Sliding part 4m…End frame 5... Rail 6, 6A, 6B, 6a, 6b...wheels 7, 7A, 7B... Wheel Units 7a... Side plate 7b... Leg rod 10… Lifting legs 20, 20A, 20B, 20X... Lateral sway coupling mechanism 21…Central Line 22, 22X… Rotation axis 23, 23A, 23B... Rotating cylinder 24a, 24b...metal plate 25... Stopper 30, 30A, 30B... Horizontal rotation mechanism 31…Bearings 32… Vertical rod 33… Upward-facing base tube 34... Downward-facing base tube 40…Vertical shaking coupling mechanism 41… Vertical rod 42... Tilting plate 43…Vertical oscillation axis 50…Connecting rod 51...Connection part 901A, 901B... Bogie 902... Base bogie 905... Rail 950... Connecting rod

Claims

1. Multiple trolleys that run along non-slip rails installed along the ground, A connecting rod that connects the bogies before and after the rails, A rail running device for inclined ground, comprising a running mechanism for running a plurality of trolleys connected via the aforementioned connecting rods along the rail, The aforementioned trolley is, A base carriage that moves along the rail via wheels that run on the rail, The system includes a luggage platform connected to the aforementioned base trolley via lifting legs, The connecting rod is connected to the base trolley via the luggage platform, A rail-running device for inclined terrain, comprising the aforementioned front and rear bogies connected together.

2. A rail travel device for inclined ground according to claim 1, The luggage platform is connected to the connecting rod via a lateral swinging coupling mechanism, The aforementioned lateral sway coupling mechanism The connecting rod and the luggage platform are held in a straight line and connected, To prevent the luggage platform from swaying vertically relative to the connecting rod, A rail travel device for inclined ground, wherein the luggage platform is connected to the connecting rod so as to be able to swing from side to side.

3. A rail travel device for inclined ground according to claim 2, The aforementioned lateral sway coupling mechanism The connecting rod has a rotating shaft that extends in the longitudinal direction, The rotating shaft is provided with a rotating cylinder that is rotatably inserted into it without moving in the axial direction, The rotating shaft is provided at the end of the connecting rod, A rail travel device for inclined ground, wherein the rotating cylinder is fixed to the luggage platform.

4. A rail running device for inclined ground according to any one of claims 1 to 3, The aforementioned lifting leg portion, The luggage platform does not sway laterally relative to the base trolley, A rail travel device for inclined terrain, comprising a vertical swing coupling mechanism that allows the luggage platform to swing vertically relative to the base trolley.

5. A rail travel device for inclined ground according to claim 4, The aforementioned lifting leg portion, A rail travel device for inclined ground, comprising a horizontal rotation mechanism that connects the aforementioned luggage platform and the aforementioned base trolley so as to be able to rotate horizontally relative to each other.

6. A rail running device for inclined ground according to claim 5, The aforementioned vertical swing coupling mechanism A vertical rod and A tilting plate connected to the vertical rod and fixed to the bottom surface of the luggage platform, The tilting plate is provided with a vertical pivot shaft that connects to the vertical rod so that it can be tilted, The luggage platform is connected to the base trolley via the vertical rod and the horizontal rotation mechanism. The aforementioned vertical swing coupling mechanism A rail travel device for inclined ground, wherein the luggage platform is connected to the base trolley so as to be able to swing vertically with respect to the aforementioned vertical swing axis as the center of inclination.

7. A rail travel device for inclined ground according to claim 1, The aforementioned luggage rack A rail travel device for inclined terrain equipped with stopper walls to prevent misalignment of transported objects.

8. A rail travel device for inclined ground according to claim 1, The luggage platform, which is arranged at a distance from front to back via the connecting rod, A rail-running device for inclines with a platform spacing that allows for the transport of long items exceeding 4 meters in length.

9. A rail travel device for inclined ground according to claim 1, The aforementioned luggage platform has a frame that forms a loading area for the transported goods, The frame, A fixing frame fixed to the luggage platform, A rail travel device for inclined ground having a movable frame that is movably connected to the fixed frame and can be fixed in a predetermined position.

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