Rail running device for sloped terrain

Abstract

It has a simple structure and safely loads and transports heavy objects. [Solution] The system includes a trolley 1 having a loading platform 2 for carrying heavy objects and running along a plurality of rails 5 installed along the ground, a running mechanism 9 for running the trolley 1 along the rails 5, and tilt prevention parts 10 arranged on both sides of the trolley 1 to prevent the trolley 1 from tilting, the rails 5 having a main rail 5A located in the center and having a non-slip structure, and sub-rails 5B and 5C located away from the main rail 5A, the tilt prevention part 10 having a contact part 11 connected to the trolley 1 and a contacted part 13 that the contact part 11 contacts to prevent the trolley 1 from tilting, the contact part 11 and the contacted part 13 are located away from the rails 5.

Description

Technical Field

[0001] The present disclosure relates to a rail traveling device installed on a slope such as a mountain forest for loading and transporting heavy objects such as heavy machinery.

Background Art

[0002] In order to transport a load on a slope, a rail traveling device that runs a carriage on a non-slip rail is used. On a steep slope such as a mountain forest, loading a heavy object such as a heavy machine on a loading platform and traveling and transporting it on the rail is an operation that involves a great risk because mud, sand, etc. are likely to slip and adhere to the wheels of the heavy machine, and it is greatly affected by rain, strong wind, and weather. It is extremely important to ensure the safety of the operation. In particular, on steep slopes such as mountain forests, although it is physically or practically difficult to construct a temporary construction road, there is a need for transportation, and moreover, the mass of the heavy object to be transported is increasing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] A trolley for transporting cargo on a monorail vehicle equipped with outriggers has been developed (Patent Document 1). This trolley has outriggers on both sides of the frame, which extend to the left and right, and extend downwards to contact the ground on slopes and maintain the trolley's stability. The outriggers extend to the left and right and up and down, and can be easily extended and adjusted to the appropriate length for the ground. Compared to trolleys without outriggers, this has a certain effect in maintaining stability, especially on monorail vehicles, as it allows the trolley to be in a horizontal position. However, it cannot support the trolley in terrain where the ground cannot be contacted on both sides of the rail. For example, it cannot be used when a platform is set up on a slope, with one side of the rail on the mountain side and the other on the valley side. Also, structurally, it cannot support and maintain stability for heavy objects that are difficult to transport on a monorail. Alternatively, there is a method of lifting heavy objects such as heavy machinery onto the loading platform of a rail-running device using a crane and loading them onto the loading platform. However, this method requires the establishment of a crane installation site and the extension of rails to that site, which incurs costs and time for site preparation, rail laying, crane transportation and movement, and road construction, leading to increased costs. Furthermore, ensuring the safety of loading and transporting large, heavy objects requires a complex structure and significant expense.

[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-running device for inclines that has a simple structure and can safely load and transport large, heavy objects. Another objective is to provide a rail-running device for inclines that can suppress and reduce loading and transport costs. Furthermore, the description of the purpose and issues in this disclosure does not preclude the existence of other purposes or issues. Also, the nature of this disclosure does not need to solve all of these issues. Moreover, it is possible to extract other issues from the description, drawings, and claims of this disclosure. The objective is to provide a rail running device that can operate on inclines. [Means for solving the problem]

[0006] A rail running device for inclined ground according to one aspect of the present disclosure comprises a trolley having a platform for loading heavy objects and running along a plurality of rails installed along the ground, a running mechanism for running the trolley along the rails, and tilt prevention parts arranged on both sides of the trolley to prevent the trolley from tilting, wherein the rails have a main rail located in the center and having a non-slip structure, and sub-rails located away from the main rail, and the tilt prevention part has a contact part connected to the trolley and a contacted part located opposite the contact part and which the contact part contacts to prevent the trolley from tilting, wherein the contact part and the contacted part are located away from the rails. [Effects of the Invention]

[0007] The above configuration has the advantage of being able to safely load and transport heavy objects with a simple structure. It also has the advantage of being able to suppress and reduce loading and transport costs. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic perspective view showing a rail travel device for inclined ground according to one embodiment of the present disclosure. [Figure 2] This is a schematic perspective view showing the rail and the tilt prevention part (contact part). This is a schematic side view showing a rail running device for inclined ground according to one embodiment of the present disclosure. [Figure 3] This is a schematic front view and an enlarged view of the main part showing one embodiment of a trolley and a tilt prevention mechanism. [Figure 4] This is a schematic front view and an enlarged view of the main part showing another embodiment of the tilt prevention unit. [Figure 5] This is an enlarged view of a key part showing another embodiment of the tilt prevention mechanism. [Figure 6] This is a schematic diagram showing the state of loading heavy machinery onto a truck bed in a comparative example that does not have a tilt prevention mechanism. [Figure 7] This is a schematic side view showing the tilting mechanism tilting the loading platform to match the loading position. [Figure 8] This is a schematic front view showing one embodiment of an outrigger. [Figure 9]This is a schematic front view showing the outriggers being pulled and secured by wires. [Figure 10] This is a schematic side view and a close-up view of the main part of the connecting plate. [Figure 11] This is a schematic plan view from above showing how the connecting planks are removed. [Figure 12] This is a schematic side view showing another embodiment of the outrigger. [Figure 13] This is a schematic plan view of the outrigger shown in Figure 12, seen from above. [Figure 14] This is a schematic side view illustrating another use case for outriggers. [Figure 15] This is a schematic plan view of the outrigger shown in Figure 14, seen from above. [Modes for carrying out the invention]

[0009] The present invention will be described in detail below with reference to the drawings. In the following description, terms indicating specific directions or positions (for example, "up," "down," and other terms including these) will be used as needed. The use of these terms is for the purpose of facilitating the understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. Also, parts with the same reference numerals appearing in multiple drawings indicate the same or equivalent parts or components. Furthermore, the embodiments described below illustrate specific examples of the technical concept of the present invention and do not limit the present invention to those described below. Also, the dimensions, materials, shapes, relative arrangements, etc., of the components described below are intended to be illustrative, and not to limit the scope of the present invention unless otherwise specified. Moreover, the content described in one embodiment or example is applicable to other embodiments and examples. Additionally, the size and positional relationships of the members shown in the drawings may be exaggerated for clarity.

[0010] The form of this disclosure may be specified by the following configurations and features. The rail traveling device for sloping land according to an embodiment of the present disclosure includes a carriage having a loading platform for loading heavy objects, a carriage that travels along a plurality of rails installed along the ground, a traveling mechanism for causing the carriage to travel along the rails, and anti-tipping portions disposed on both sides of the carriage to prevent the carriage from tipping over. The rails include a main rail disposed at the central portion and having a non-slip structure, and a sub-rail disposed at a distance from the main rail. The anti-tipping portion has a contact portion connected to the carriage and a contact-receiving portion disposed at a position opposite to the contact portion, and the contact portion contacts the contact-receiving portion to prevent the carriage from tipping over. The contact portion and the contact-receiving portion are disposed at a distance from the rails.

[0011] The above configuration has the features that heavy objects can be safely loaded and transported with a simple structure. It also has the feature of suppressing and reducing the loading and transportation costs.Moreover, the above configuration includes an anti-tipping portion for preventing the tipping of the carriage. The anti-tipping portion has a contact portion connected to the carriage and a contact-receiving portion that contacts the contact portion to prevent the carriage from tipping over. With such a simple structure, the tipping of the carriage can be prevented, and heavy objects can be safely loaded and transported. The anti-tipping portions are disposed on both sides of the carriage, which can prevent the carriage from tipping over to both the left and right sides. Since the contact portion and the contact-receiving portion of the anti-tipping portion are disposed at a distance from the rails, a strength and structure capable of supporting the carriage and preventing tipping can be efficiently realized without being restricted by the position and structure of the rails. In particular, when loading heavy objects on the loading platform, the loaded objects and the carriage are likely to lose balance, increasing the risk of tipping accidents. However, the contact portion and the contact-receiving portion of the anti-tipping portion can prevent the tilting and displacement of the carriage during loading and maintain a stable posture, enabling the safe loading of heavy objects. The anti-tipping portion has a simple structure for supporting and preventing tipping according to the installation location of the rails, heavy objects, conditions, etc. It can improve safety at a low cost without substantially increasing the overall cost, having a high cost-effectiveness. In addition, the contact portion and the contact-receiving portion of the anti-tipping portion can be installed in a small space, can be installed on both the mountain side and the valley side, and moreover, have the feature that they can be easily reinforced and the support strength can be enhanced.

[0012] The rail running device for sloping ground according to other embodiments of the present disclosure, in addition to the above aspects, has a fitting shape in which the abutting portion and the abutted portion can be fitted to each other, and the abutting portion and / or the abutted portion can extend in the first direction. The above configuration has the features of a simple structure, capable of safely loading and transporting heavy objects, and suppressing and reducing the loading and transportation costs. By having a fitting shape in which the abutting portion and the abutted portion can be fitted to each other, the abutting portion and the abutted portion can abut according to the tilting and displacement of the carriage to support the carriage, and the displacement and tilting can be surely prevented. By the abutting portion and / or the abutted portion extending in the first direction, the abutting portion and the abutted portion abut not at a point but linearly or in a surface manner to prevent the tilting and displacement of the carriage. Also, it is not necessary to strictly define the stop position of the carriage, and the tilting and displacement of the carriage can be prevented while the carriage stops within the range of fitting and abutting by the length that the abutting portion and / or the abutted portion extends in the first direction. In the present disclosure, the fitting shape includes any one or more of protrusions, convex portions, concave portions, groove portions, and stepped portions, and has a shape in which the abutting portion and the abutted portion abut due to the tilting and displacement of the carriage. The first direction indicates a direction parallel to the traveling direction of the carriage (including the front-rear direction) and the laying direction of the rail.

[0013] The rail running device for sloping ground according to other embodiments of the present disclosure, in addition to the above aspects, can have a rib protruding from one of the abutting portion and the abutted portion to the other side, and the other can have a groove capable of fitting the rib. The above configuration has the features of a simple structure in which one of the abutting portion and the abutted portion has a rib and the other has a groove capable of fitting, capable of safely loading and transporting heavy objects, and suppressing and reducing the loading and transportation costs.

[0014] The rail running device for sloping ground according to other embodiments of the present disclosure, in addition to the above aspects, can have the abutting portion and the abutted portion arranged outside the rail. The above configuration has the features of a simple structure in which the abutting portion and the abutted portion are arranged outside the rail, capable of safely loading and transporting heavy objects, and suppressing and reducing the loading and transportation costs.

[0015] In addition to the above embodiments, rail running devices for inclined ground according to other embodiments of the present disclosure can have the contact portion and the contacted portion positioned above the sub-rail. The above configuration has the advantage of a simple structure in which the contact portion and the contacted portion are positioned outside the rail, allowing for the safe loading and transport of heavy objects, and reducing loading and transport costs.

[0016] In addition to the above embodiments, the rail running device for inclined ground according to other embodiments of the present disclosure can have a contact portion connected to a trolley via a trolley connecting portion, and a contacted portion connected to the installation surface via an installation connecting portion. The contact portion is connected to a trolley via a trolley connecting portion, and the contacted portion is directly or indirectly connected to the installation surface via an installation connecting portion. This simple structure has the advantage of being able to safely load and transport heavy objects and suppress and reduce loading and transport costs.

[0017] In addition to the above embodiment, a rail-running device for inclined ground according to another embodiment of the present disclosure may have a loading side on the side of the loading platform that moves heavy machinery loaded from a second direction intersecting the first direction onto the loading platform. The second direction refers to a direction intersecting the first direction (including perpendicular directions). The above configuration makes it possible to safely load heavy machinery onto the loading side, which is the side of the loading platform, from a direction intersecting the first direction (rail), which is particularly prone to causing the trolley and heavy machinery to lose balance.

[0018] In addition to the above embodiments, rail-running devices for inclined terrain according to other embodiments of this disclosure may have a tilting mechanism that allows the trolley to tilt its loading surface. The above configuration has the advantage that the tilting mechanism can set the loading surface to match the height and position of the heavy object before loading, such as the deck surface of a platform, and that it can safely load and transport heavy objects with a simple structure. It also has the advantage of suppressing and reducing loading and transport costs.

[0019] In addition to the above embodiment, a rail running device for inclined ground according to another embodiment of the present disclosure has a main rail positioned in the center and two sub-rails positioned spaced apart on both sides of the main rail, wherein the main rail has a non-slip structure and the sub-rails do not have a non-slip structure. This configuration has the advantage of a simple structure in which the sub-rails do not have a non-slip structure, which can reduce costs and safely load and transport heavy objects.

[0020] In addition to the above embodiment, a rail running device for inclined ground according to another embodiment of the present disclosure has a main rail positioned in the center and two sub-rails positioned spaced apart on both sides of the main rail, and both the main rail and the sub-rails may have a non-slip structure. The above configuration has the advantage that both the main rail and the sub-rails have a non-slip structure, preventing tilting and allowing for safer loading and transport of heavy objects.

[0021] In addition to the above embodiments, the rail travel device for inclined ground according to other embodiments of this disclosure may have outriggers to support the trolley in addition to the tilt prevention unit. The above configuration has the advantage of being able to safely load and transport heavy objects with a simple structure in which the tilt prevention unit further has outriggers. It also has the advantage of being able to suppress and reduce loading and transport costs.

[0022] In addition to the above embodiments, rail travel devices for inclined ground according to other embodiments of this disclosure may have a tilt prevention unit that includes a wire for fixing the outriggers in a pulled state. The above configuration has the advantage of being able to safely load and transport heavy objects with a simple structure in which the tilt prevention unit fixes the outriggers in a pulled state with a wire. It also has the advantage of being able to suppress and reduce loading and transport costs.

[0023] In addition to the above embodiments, a rail-running device for inclined ground according to another embodiment of this disclosure has a loading platform having a loading platform surface and a frame, and the frame can be connected to outriggers at a position above the loading platform surface. This configuration has the advantage of being able to safely load and transport heavy objects with a simple structure in which the frame is connected to outriggers at a position above the loading platform surface. It also has the advantage of being able to suppress and reduce loading and transport costs.

[0024] Another embodiment of the rail travel device for inclined ground according to this disclosure includes, in addition to the above embodiment, a bridging plate that connects the loading platform and the surface on which the heavy object is placed before loading, wherein the bridging plate may have a running section on the upper surface on which the heavy object moves, and a hooking section connected to the running section that can be hooked onto the loading platform and can be attached and detached when the heavy object is loaded onto the loading platform. The above configuration has the advantage of being able to load and transport heavy objects safely with a simple structure. It also has the advantage of being able to suppress and reduce loading and transport costs. (Embodiment 1)

[0025] Figures 1 to 5 show a rail-running device 100 for inclined ground according to Embodiment 1. The rail-running device 100 for inclined ground includes a trolley 1 that runs on wheels 4 along a plurality of rails 5 installed and fixed along the ground, a running mechanism 9 that runs the trolley 1 along the rails 5, and a tilt prevention unit 10 that prevents the trolley 1 from tilting. The running mechanism 9 can transport heavy objects by towing the trolley 1 with a running mechanism 9 driven by an engine or motor. The running mechanism 9 can be installed separately from the trolley 1, in front of and / or behind the trolley 1, or installed on the trolley 1, and can be integrated with the trolley 1. Two or more trolleys 1 can be connected with a connecting rod.

[0026] The rail-running device 100 for sloping terrain transports heavy objects loaded onto the cargo bed 2. These heavy objects include, for example, heavy machinery 50 and heavy materials, and include both self-propelled and non-self-propelled types. Hereinafter, heavy machinery 50 will be mainly used as an example of heavy objects. The heavy machinery 50 is used at the destination for excavation, leveling, civil engineering, construction, transportation, erection, etc. Sloping terrain is a type of terrain with relatively high and low points, such as mountainous areas, mountainous regions, cliffs, hills, and stepped areas with uphill and / or downhill slopes. The rail-running device 100 for sloping terrain has the advantage of being able to be conveniently used to transport heavy objects by laying rails 5 in mountainous areas, cliffs, and other steep slopes where it is physically or practically difficult to construct temporary roads for transport vehicles that carry heavy objects such as heavy machinery 50, as well as in the construction of high-voltage power line towers installed by cutting through forests in a linear fashion. (Rail 5)

[0027] The rail running device 100 travels along multiple (three in Figures 1 to 3) rails 5. The multiple rails 5 are laid on the ground, foundation, or other installation surface 7 with sufficient strength to support and transport heavy objects. The rail running device 100 ascends and descends an incline along the rails 5, which are installed in a substantially parallel position along the installation surface 7. The rails 5 in Figures 2 and 3 have a main rail 5A and two sub-rails 5B and 5C on either side of the main rail 5A. The main rail 5A is positioned in the center between the two sub-rails 5B and 5C, and the two sub-rails 5B and 5C are positioned on the left and right sides, separated from the main rail 5A, and have a non-slip structure. In the front view of Figure 3, the sub-rails 5B and 5C are positioned lower than the main rail 5A. The main rail 5A and the sub-rails 5B and 5C on both sides support the trolley 1 and the loaded heavy object in a stable position at three points. This configuration allows for a greater load capacity than a single rail (monorail 5) and enables the safe loading and transport of heavy objects. The main rail 5A, which has a non-slip structure, can provide sufficient support for the trolley 1, including the sub-rails 5B and 5C. In this case, when the heavy machinery 50 is loaded, a force is applied that causes the trolley 1 to tilt around the point of contact between the main rail 5A and the wheels 4. However, the rail running device 100, with its unique configuration in which the tilt prevention part 10 (described later) has a contact part 11 and a contacted part 13, reliably prevents the trolley 1 from tilting, even when the sub-rails 5B and 5C do not have a non-slip structure such as gripping or clamping the rail 5, thereby enabling the safe loading of the heavy machinery 50 onto the loading platform 2.

[0028] One or more non-slip rails 5 can be provided. The non-slip structure grips and holds the rail 5, engages with a rack or hole provided on the rail 5 to obtain thrust and run on the rail 5. The main rail 5A with a rack has a rack fixed to its underside that is shaped to transmit the driving force of the running mechanism 9, allowing it to run on steep inclines without slipping. In the rails 5 of Figures 2 and 3, the main rail 5A has a non-slip structure, while the sub-rails 5B and 5C do not have a non-slip structure, which suppresses and reduces the overall installation cost of the rails 5, while the tilt prevention part 10, described later, can prevent the bogie 1 from tilting. It is also possible for both the main rail 5A and the sub-rails 5B and 5C to have a non-slip structure. (Platform 40)

[0029] Figure 3 shows a platform 40 provided on a mounting surface 7 such as a sloping area. The platform 40 can be positioned such that, for example, the uphill side is in contact with the ground and the valley side is positioned above the ground, thereby making the upper deck surface 40a substantially horizontal even on a sloping area, improving the safety and efficiency of loading heavy objects. The heavy machinery 50 moves and advances along the deck surface 40a in a second direction intersecting the first direction, and is loaded onto the loading platform 2a. The deck surface 40a is preferably horizontal and at substantially the same height as the loading platform 2a, so that the heavy machinery 50 moves horizontally and is loaded onto the loading platform 2a. Substantially the same height as the loading platform 2a includes cases where the heavy machinery 50 moves horizontally from the deck surface 40a to the loading platform 2a and there is a height difference within a range that does not pose a safety problem, for example, being horizontal with respect to the loading platform 2a and having a height difference of 4 cm or less, preferably a height difference of 2 cm or less. (Cart 1, Platform 2)

[0030] The trolley 1 travels along a plurality of rails 5 installed along the ground and has a loading platform 2 for loading heavy objects. The loading platform 2 has a loading surface 2a for loading heavy machinery 50, and the loading area can be formed by a loading platform frame 3 made of bar material, rod, plate material, frame material, etc. In Figure 1, the loading platform 2 has a loading surface 2a that is approximately rectangular, with a length (L) of the loading surface 2a in a first direction and a width (W) of the loading surface 2a of the loading platform 2 in a direction perpendicular to the first direction. The sides of the loading platform 2 (loading surface 2a) have loading sides 2b that move the heavy machinery 50, which is loaded from a second direction intersecting the first direction, onto the loading platform 2. The loading area of ​​the loading platform 2 can be defined by providing a loading platform frame 3 that is connected to and fixed to the loading platform 2. The cargo bed 2 in Figure 1 has cargo bed frames 3 extending upward from the cargo bed surface 2a on the front and rear sides of the cargo bed surface 2a, allowing the operator of the heavy machinery 50 to check the front and rear of the cargo bed surface 2a and the loading area when loading. The cargo bed 2 in Figure 1 does not have cargo bed frames 3 on the loading side 2b, ensuring a large loading entrance for the heavy machinery 50, but cargo bed frames 3 can also be provided on the loading side 2b. The cargo bed frames 3 can be detached and opened and closed. The cargo bed frames 3 can be constructed as a lightweight frame by combining multiple frames vertically, horizontally, diagonally, etc., and can be formed into a rectangular shape to improve strength, and can be easily reinforced by adding braces and connecting them. In addition, stopper walls 3b can be provided to close the gaps in the cargo bed frames 3. Furthermore, the cargo bed frames 3 can be connected to and fixed to the outriggers 20, which will be described later, at a position above the cargo bed surface 2a, contributing to efficient tilt prevention.

[0031] The trolley 1 in Figure 7 has a tilting mechanism 8 that allows the loading surface 2a to be tilted. The tilting mechanism 8 can, for example, raise the front or rear of the loading surface 2a to allow it to tilt, and the loading surface 2a can be set and adjusted to match the height and position of heavy objects before loading, such as the deck surface 40a of the platform 40. The tilting mechanism 8 is equipped with a limiter switch that allows it to tilt only when the trolley 1 is stopped at a predetermined position where the contact part 11 and the contacted part 13 can come into contact, thereby ensuring the safety of the tilting of the loading surface 2a. (Tilt prevention part 10)

[0032] The tilt prevention unit 10 prevents the trolley 1 from tilting. The tilt prevention unit 10 has a contact portion 11 that is connected to and fixed to the trolley 1, and a contacted portion 13 that is connected to and fixed to the installation surface 7. The tilt prevention unit 10 prevents the trolley 1 from tilting beyond the contact position by the contact portion 11 contacting the contacted portion 13, and can be positioned on both sides of the trolley 1 to prevent tilting to either side. The tilt prevention unit 10 in Figures 1 and 3 has a contact portion 11 that is connected to the trolley 1 side, a trolley connecting portion 12 that connects the contact portion 11 to the trolley 1, a contacted portion 13 that the contact portion 11 contacts to prevent the trolley 1 from tilting, and an installation connecting portion 14 that directly or indirectly connects the contacted portion 13 to the installation surface 7 side. All members constituting the tilt prevention unit 10 have the strength, structure, shape, and thickness necessary to prevent the trolley 1 from tilting.

[0033] The tilt prevention unit 10 is provided with a contact portion 11 and a contacted portion 13 in opposing positions that can contact each other at a predetermined loading position where the trolley 1 is stopped and heavy objects are loaded. The contact portion 11 and the contacted portion 13 have shapes that correspond to each other, and are shaped to contact each other to prevent tilting and displacement of the trolley 1. The contact position, area, number, gap, degree of fitting and locking, and support strength can be easily set and adjusted by the shape, size, and structure. In addition, the contact portion 11 and the contacted portion 13 have a small width required for installation, such as the height of the convex ridges 13A and 11B and the depth of the concave ridges 11A and 13B, saving space. They can also be easily placed under the loading platform surface 2a or deck surface 40a without hindering the loading of heavy machinery 50. They have a simple structure and low cost, yet provide sufficient support strength, making them highly cost-effective. Furthermore, they can be easily placed on both sides of the trolley 1 and can be installed not only on the mountain side but also on the valley side. The contact portion 11 and the contacted portion 13 allow for a smaller range and angle of tilting and displacement, enabling efficient maintenance of a stable posture with a simple structure. This is because the magnitude of the force applied during tilting (tilting moment) is reduced, and the resistance to tilting is increased to a level that reliably prevents tilting.

[0034] The contact portion 11 and the contacted portion 13 can have a fitting shape that allows them to fit together. The fitting shape of the contact portion 11 and the contacted portion 13 can have, for example, protrusions, projections, convex parts, recesses, indentations, grooves, steps, stairs, etc., and by having a three-dimensional shape in which one fits into the other and fits together, they can fit together and reliably make contact, at least partially. When the trolley 1 tilts or shifts in position, the contact portion 11 connected to the trolley 1 is displaced together with the trolley 1 and attempts to shift, but by contacting the contacted portion 13, the displacement beyond the contact position is limited. The contact portion 11 and the contacted portion 13 can prevent not only horizontal positional displacement but also tilting and vertical positional displacement by contacting each other. The contact portion 11 and the contacted portion 13 may have a protruding ridge 13A, 11B, etc. on one side that projects toward the other, and the other side may have a recessed ridge 11A, 13B, etc. into which the protruding ridge 13A, 11B, etc. can be fitted. In the tilt prevention portion 10A of Figures 1 and 3, the contact portion 11 has a recessed ridge 11A formed by two projections projecting toward the contacted portion 13, and the contacted portion 13 has a protruding ridge 13A formed by one projection projecting toward the contact portion 11. The recessed ridges 11A, 13B, etc. can be made up of grooves, steps, etc.

[0035] The contact portion 11 and the contacted portion 13 have a shape and arrangement that allows them to contact each other, and predetermined parts can contact each other to limit and prevent displacement and tilting of the trolley 1. The contact portion 11 is displaced in accordance with displacement and tilting of the trolley 1, and the contacted portion 13 is shaped and arranged so that the displaced contact portion 11 can contact it. The contact portion can be determined by the shape, arrangement, gap, contact position, angle, and area of ​​the contact portion 11 and the contacted portion 13. The contact portion 11 and the contacted portion 13 can be shaped so that one covers or surrounds the other, thereby expanding the range in which they can contact each other and the corresponding displacement direction and range of the trolley 1. For example, in the enlarged view of Figure 3, the contact portion 11 is a concave ridge 11A, and the contacted portion 13 is a convex ridge 13A. The protruding upper surface, protruding tip, and protruding lower surface of the convex ridge 13A are covered and surrounded by the recessed upper surface, recessed bottom, and recessed lower surface of the concave ridge 11A. The concave ridge 11A has a first part 11a on the upper surface of the recess, a second part 11b on the bottom of the recess, and a third part 11c on the lower surface of the recess, while the convex ridge 13A has a first part 13a on the upper surface of the protruding, a second part 13b on the protruding tip, and a third part 13c on the lower surface of the protruding. If the trolley 1 is misaligned horizontally, on the right side of the trolley 1, the contact portion 11 (convex ridge 11A) moves to the right of arrow X1 in Figure 3, and the second part 11b comes into contact with the second part 13b of the convex ridge 13A, limiting the misalignment beyond the contact position. Furthermore, when the bogie 1 tilts around the main rail 5A, the contact portion 11 on the right side of the bogie 1 moves diagonally downward in the direction of arrow X2, and the first part 11a and the second part 11b of the concave ridge 11A contact the first part 13a and the second part 13b of the convex ridge 13A simultaneously or with a time difference, and the upper corner 11d of the concave ridge 11A contacts the upper corner 13d of the convex ridge 13A, thereby limiting tilting beyond the contact position. On the left side of the opposite trolley 1, the recessed ridge 11A and the convex ridge 13A come into contact at symmetrical positions in the vertical and horizontal directions. That is, the second part 11b and the third part 11c of the recessed ridge 11A come into contact with the second part 13b and the third part 13c of the convex ridge 13A simultaneously or with a time difference, and the lower corner 11d of the recessed ridge 11A comes into contact with the lower corner 13d of the convex ridge 13A, thereby limiting tilting beyond the contact position. The contact portion 11 and the contacted portion 13 come into contact at one or more positions on one or both sides of the trolley 1, such as at the surface or corner, thereby reliably preventing displacement and tilting beyond the contact position.The protruding length of the convex ridge 13A and the recess depth of the concave ridge 11A are such that the convex ridge 13A and the concave ridge 11A are in contact, preventing displacement or tilting beyond the contact point, and the convex ridge 13A does not go over the concave ridge 11A.

[0036] This disclosure does not specify the shape, size, number, structure, etc., of the contact portion 11 and the contacted portion 13, and all that can prevent tilting by contacting the contact portion 11 and the contacted portion 13 can be used. For example, the shapes of the convex ridge 13A and the concave ridge 11A can be swapped, and in the tilt prevention part 10B of Figure 4, the contact portion 11 is the convex ridge 11B and the contacted portion 13 is the concave ridge 13B. In Figure 4, similarly to the above, if the trolley 1 moves horizontally, the contact portion 11 (convex ridge 11B) moves to the right of arrow Y1, and the second part 11y of the protruding tip of the convex ridge 11B contacts the second part 13y of the recessed bottom of the concave ridge 13B of the contacted portion 13, thereby limiting the positional displacement beyond the contact position. Furthermore, when the bogie 1 tilts around the main rail 5A, the contact portion 11 moves diagonally downward in the direction of arrow Y2 on the right side of the bogie 1, and the second part 11y of the protruding tip of the convex rib 11B and the third part 11z of the lower surface of the protruding rib simultaneously or with a time difference contact the second part 13y of the recessed bottom of the concave rib 13B and the third part 13z of the lower surface of the concave rib 13B, and the lower corner portion 11w of the convex rib 11B contacts the lower corner portion 13w of the concave rib 13B, thereby limiting tilting beyond the contact position. Furthermore, on the left side of the opposite trolley 1, the first part 11x of the protruding upper surface and the second part 11y of the protruding tip of the convex ridge 11B contact the first part 13x of the recessed upper surface and the second part 13y of the recessed bottom of the concave ridge 13B simultaneously or with a time difference, and the upper corner 11w of the convex ridge 11B contacts the upper corner 13w of the concave ridge 13B, thereby limiting tilting beyond the contact position. The contact portion 11 and the contacted portion 13 can be made into shapes other than the convex and concave described above, and can be partially deformed, and can be made of flat and / or curved surfaces and corners. Either the contact portion 11 or the contacted portion 13 can be made into a columnar, cylindrical, rail-shaped, etc., having a three-dimensional cross-sectional shape such as a T-shape (e.g., Figure 5), L-shape, cross, V-shape, U-shape, triangle, square, polygon, circle (including ellipse), regular shape, irregular shape, etc. The tilt prevention part 10C in Figure 5 has a T-shaped protrusion 11C for the contact part 11 and a recess 13C with an opening (L-shaped at the top and bottom) that narrows the recess width for the contacted part 13, so that the T-shaped protrusion 11C can be fitted and locked in place to prevent it from coming off. The contact part 11 and the contacted part 13, which are arranged on both sides of the trolley 1, can be the same or different in shape and length.Furthermore, the contact portion 11 and the contacted portion 13 can have two or more three-dimensional shapes such as indentations and protrusions on the same side of the trolley 1. For example, by arranging two or more continuous indentations and protrusions in a parallel position, the number of contacts and the contact area can be easily increased, and in particular, the support strength against tilting of the loading platform 2 and vertical displacement including diagonal vertical directions can be improved.

[0037] The contact portion 11 and the contacted portion 13 can be positioned opposite each other with a gap s between them. The gap s can absorb construction errors and deviations in the travel position. The contact portion 11 and the contacted portion 13 can define the range of acceptable tilting and positional deviation depending on their respective shapes, contact positions, and the presence and degree of the gap between them. Furthermore, the gap between the contact portion 11 and the contacted portion 13 can prevent tilting and positional deviation of the trolley 1 while allowing it to move in the direction of travel, thereby preventing it from tipping over. At the stopping position of the trolley 1, the contact portion 11 and the contacted portion 13 can be positioned in contact or in contact with each other, preventing tilting of one or both, and preventing rattling of the trolley 1. The tilt prevention unit 10 may also be equipped with an adjustment mechanism that allows setting and adjusting the position, contact position, contact area, number of contacts, etc., of either the contact portion 11 or the contacted portion 13, or both, so that the contact portion 11 and the contacted portion 13 can be positioned in contact after the trolley 1 has stopped. Note that the figure is a schematic diagram for illustrative purposes, and the arrangement of the contact portion 11 and the contacted portion 13, the dimensions of the gap between them, and the spacing are not necessarily accurate.

[0038] In general, rail-running systems have the problem that while the trolley 1 is less likely to tip over in the direction of travel (first direction), it is more likely to tip over or tilt in the second direction that intersects the first direction, especially in the perpendicular left and right lateral directions. Furthermore, as the weight of heavy objects such as heavy machinery increases to 2t, 3t, 4t, or more, loading heavy objects onto the platform from the second direction, including the perpendicular direction, with a high center of gravity poses a higher degree of risk. This presents problems in that achieving sufficient tilt prevention on slopes and other terrains requires a complex structure, extensive construction, costs, and time. For example, in the case of a rail running device 900 without a tilt prevention mechanism, as shown in Figures 6A and 6B, when the leading end of the crawler, wheels, etc. of the heavy machinery 950 is placed on the loading platform, the mass of the heavy machinery 950 is applied to the right side of the loading platform, causing the heavy machinery 950 to sink in the direction of arrow A, and the trolley 901 to tilt (Figure 6A). Specifically, the right side of the loading platform lowers (down in the direction of arrow a), and the left side of the loading platform on the opposite side rises relatively (up in the direction of arrow a'), causing the heavy machinery 950 to tilt back and forth. Furthermore, if the heavy machinery 950 continues to move forward beyond the center line of the loading platform, the load is then applied to the opposite side, causing the trolley 901 to tilt (Figure 6B). Specifically, the left side of the loading platform lowers (down in the direction of arrow b), and the right side of the loading platform on the opposite side rises relatively, causing the heavy machinery 950 to tilt back and forth. Furthermore, the amount of play between the rails and wheels of the rail running device 900 increases the tilting of the trolley 901 and the heavy machinery 950. In particular, in order to safely move large and heavy machinery with a high center of gravity and load it onto the platform, it is necessary to limit the tilting of the trolley and heavy machinery as much as possible.Therefore, the rail running device 100 of this disclosure has a unique configuration that includes a tilt prevention part 10, enabling safe loading of heavy objects with a simple structure, and also reducing the cost of loading and transport. The contact part 11 and the contacted part 13 are arranged on both sides of the trolley 1, and can prevent the trolley 1 from tilting in either direction, regardless of whether it is the mountain side or the valley side. The contact portion 11 and the contacted portion 13 are positioned at a distance from the rail 5, and contact the rail 5 separately at the distanced position. This ensures that the tilting of the trolley 1 when loaded with heavy objects can be reliably prevented without being constrained by the shape, structure, or positional relationship of the rail 5 and the wheel 4, and without being constrained by the play between the rail 5 and the wheel 4 necessary for the wheel 4 to run smoothly along the rail 5.Furthermore, it has the advantage of being able to set the support strength according to the weight of the object, the trolley, the terrain, and other conditions, and achieving tilt prevention with a simple structure.

[0039] The contact portion 11 and the contacted portion 13 are positioned at a distance from the rail 5. In Figure 3, the contact portion 11 and the contacted portion 13 are positioned outside the rail 5 (sub-rails 5B and 5C). By making the distance from the main rail 5A greater than that of the sub-rails 5B and 5C, tilting can be efficiently prevented with less resistance. Furthermore, the contact portion 11 and the contacted portion 13 are positioned at different heights than the sub-rails 5B and 5C. In Figure 3, the contact portion 11 and the contacted portion 13 are positioned above the sub-rails 5B and 5C. In Figure 3, the sub-rails 5B and 5C are positioned lower than the main rail 5A, where the maximum load is applied. The contact portion 11 and the contacted portion 13 are positioned at a different height from the sub-rails 5B and 5C, and higher than the sub-rails 5B and 5C. This allows for contact at a position higher than the sub-rails 5B and 5C, effectively preventing tilting and displacement of the trolley 1. Furthermore, the contact portion 11 and the contacted portion 13 in Figure 3 contact at a position below the loading surface 2a. In addition, the contact portion 11 and the contacted portion 13 in Figure 3 are positioned outside a circle (shown by a dotted line) with the main rail 5A as the center and the shortest distance between the main rail 5A and the sub-rails 5B and 5C as the radius, effectively preventing tilting. By moving away from the main rail 5A, the displacement of the contact portion 11 due to the tilting of the bogie 1 increases, which improves the support strength and precision of the contact portion 11.

[0040] The contact portion 11 and / or the contacted portion 13 can be provided extending in a first direction, thereby increasing the contact area by extending the contact surface in the first direction, reducing the contact pressure, and creating a rail-like surface. Figures 1 and 3 show the contact portion 11 and the contacted portion 13 arranged in a parallel position opposite each other, but they can also be arranged in a non-parallel position partially or entirely. The lengths of the contact portion 11 and the contacted portion 13 should be at least the length necessary for them to contact each other and prevent the trolley 1 from tilting. The contact portion 11 and the contacted portion 13 can be the same length or different lengths. The contact portion 11 should be less than or equal to the length of the trolley 1 so as not to obstruct movement on the curved rails 5. The contacted portion 13 can be at least the length of the trolley 1 or less than or equal to the length of the trolley 1, and regardless of the length of the trolley 1, it should be at least the length necessary for the contact portion 11 of the trolley 1, when stopped within the range of the trolley 1's stopping position, to contact the contact portion 13 and prevent it from tilting. The contact portion 13 can be, for example, less than or equal to the length of the trolley 1, less than or equal to 80% of the length of the trolley 1, less than or equal to 70% of the length of the trolley 1, less than or equal to 60% of the length of the trolley 1, or less than or equal to 50% of the length of the trolley 1. The contact portion 11 can be longer than or equal to the length of the contact portion 13. The contact portion 11 can be less than or equal to the length of the contact portion 13, for example, less than or equal to 80% of the length of the contact portion 13, less than or equal to 70% of the length of the contact portion 13, less than or equal to 60% of the length of the contact portion 13, or less than or equal to 10% or more, 20% or more, or 30% or more of the length of the contact portion 13. When the contact portion 11 is less than or equal to the length of the contact portion 13, on the one hand, the contact portion 11 can be made longer to expand the range in which contact and fitting can occur, and on the other hand, the contact portion 11 can be made shorter than the contact portion 13 so that the contact portion 11 overlaps with the non-contact portion 13 and the stopping range in which contact and fitting can always be expanded. Both the contact portion 11 and the contacted portion 13 in Figure 1 extend in a first direction. The contacted portion 13 in Figure 1 is longer than the contact portion 11. The stopping position of the trolley 1, which can prevent tilting, is set to be within the range in which the contact portion 11 fits within the length of the contacted portion 13. The contact portion 11 and / or the contacted portion 13 can be provided with guides, shapes, and structures at one or both ends in the first direction to guide them to a predetermined contact and fitting position. Both the contact portion 11 and the contacted portion 13 in Figure 1 have sharp, tapered shapes at both ends in the first direction, so that the gap between the contact portion 11 and the contacted portion 13 decreases as the trolley 1 moves, guiding them to the predetermined position. In addition, the width of the recess 11A, etc., can be made to decrease as the trolley 1 moves.

[0041] The trolley connecting portion 12 connects the contact portion 11 to the trolley 1 side, and the installation connecting portion 14 connects the contacted portion 13 directly or indirectly to the installation surface 7. The trolley connecting portion 12 and the installation connecting portion 14 can be provided as one or more, preferably two or more, so that the contact portion 11 and the contacted portion 13 extending in the first direction can be easily and inexpensively positioned in the predetermined location. In Figure 3, the trolley connecting portion 12 and the installation connecting portion 14 have recessed ridges 11A and convex ridges 13A connected and arranged on the opposing surfaces of the trolley connecting portion 12 and the installation connecting portion 14, so that the trolley connecting portion 12 and the installation connecting portion 14 are sandwiched together and the recessed ridges 11A and convex ridges 13A come into contact. The contact portion 11 and the contacted portion 13 can be spaced apart by the protrusion or recess (recessed ridge 11A and convex ridge 13A) and arranged in a parallel position to form a gap s. In the enlarged view of the main part in Figure 3, both the trolley connecting section 12 and the installation connecting section 14 extend vertically. The trolley connecting section 12 extends downward from the loading platform 2, with the contact section 11 positioned below and to the right of the trolley connecting section 12. The installation connecting section 14 extends upward from the installation surface 7, with the contacted section 13 positioned above and to the left of the installation connecting section 14, so that the contact section 11 and the contacted section 13 are positioned opposite each other. The trolley connecting section 12 can be fixed to the bottom surface, sides, etc., of the loading platform surface 2a, and can be reinforced by connecting and fixing to members below the loading platform surface 2a. The installation connecting section 14 can be connected to a frame installed on the installation surface 7, such as a foundation, base, ground, etc., and can be further reinforced by connecting to rails 5, platforms 40, etc., improving overall strength and rigidity. The trolley connecting section 12 and the installation connecting section 14 are made of members with sufficient strength to prevent the trolley 1 from tilting by having the contact section 11 and the contacted section 13 come into contact. These members can be made of, for example, rods, plates, or frames, and multiple members can be connected, fixed, and reinforced to ensure sufficient support strength. (Outrigger 20)

[0042] The tilt prevention section 10 in Figures 8 and 9 further includes outriggers 20 that support and fix the trolley 1 from the side. In addition to the contact section 11 and the contacted section 13, this tilt prevention section 10 also has outriggers 20, which connect and support the trolley 1 at multiple different positions. In particular, by providing the outriggers 20 on the side where the heavy machinery 50 is loaded (platform 40 side, mountain side), tilting during loading of the heavy machinery 50 can be prevented more reliably. The outriggers 20 extend in a second direction from the loading side 2b of the loading platform 2 and are in contact with, connected to, and fixed to the deck surface 40a and / or the installation surface 7 of the loading platform 2 and platform 40, creating a bracing state between the loading platform 2 and the deck surface 40a, etc., preventing the heavy machinery 50 from tilting towards the front side (right side in Figures 8 and 9) in the direction of travel (second direction). The outrigger 20 has one or more connecting parts 22 that connect to the loading platform 2, and one or more legs 23 that abut, connect, and fix to the deck surface 40a and / or the mounting surface 7 of the platform 40. The outrigger 20 is positioned on the mountain side (loading side 2b) of the loading platform 2, on the platform 40 side, and can effectively prevent the trolley 1 from tilting toward the platform 40. Against lateral forces, the outrigger 20 supports the trolley 1 by bracing the loading platform frame 3 and the deck surface 40a with horizontal arms 21A and vertical arms 21B connected to the loading platform frame 3, preventing tilting. The legs 23 are fixed to the deck surface 40a, allowing them to maintain a braced state without displacement and effectively prevent tilting and displacement. The outriggers 20 in Figures 8 and 9 can support the trolley 1 by connecting a horizontal arm 21A and a vertical arm 21B, and by lengthening the horizontal arm 21A and positioning the leg portion 23 at a distance from the trolley 1, efficient support can be achieved. The outriggers 20 are connected to the loading platform frame 3 at a position higher than the loading platform surface 2a and, together with the contact portion 11 and the contacted portion 13 positioned lower than the loading platform surface 2a, can contribute to preventing the trolley 1 from tilting. The length of the outriggers 20 (horizontal arm 21A) when connected to the loading platform frame 3 can be 1 / 10 or more, 1 / 8 or more, 1 / 5 or more, 1 / 4 or more, 1 / 3 or more, or 1 / 2 or more of the width of the loading platform 2, and can also be less than or equal to the width of the loading platform 2.The outrigger 20 in Figure 9 has its legs 23 positioned outside the rail 5 and the loading platform 2, further outside the contact portion 11 and the contacted portion 13, and at a large distance from the main rail 5A, allowing it to support the loading platform 2 separately from the contact portion 11 and the contacted portion 13. One or more outriggers 20 can be provided, and multiple outriggers 20A, 20B can be arranged spaced apart in the direction of travel. The two outriggers 20A, 20B connected to the front and rear loading platform frames 3A, 3B do not obstruct the loading of heavy machinery 50 on the side of the loading platform 2, ensuring a wide loading side and effectively preventing the trolley 1 from tilting. The outriggers 20A and 20B can be positioned parallel to each other in a direction perpendicular to the first direction, and the spacing between the outriggers 20A and 20B can be increased (widened) or decreased (narrowed) toward the end of the leg portion 23, within the limits that a path for the heavy machinery 50 can be secured.

[0043] This disclosure does not specify the shape, structure, or number of outriggers 20. The outriggers 20 can be composed of multiple frames, bars, rods, plates, frames, three-dimensional shapes, etc., and may have, for example, one or more horizontal arms 21A extending horizontally and one or more vertical arms 21B connected to the horizontal arms 21A and extending vertically. This configuration allows for a lighter outrigger 20, easy attachment and detachment, efficient improvement of support strength by combining multiple arms and reinforcing each other by connecting them vertically, horizontally, and diagonally, a simple structure that reduces costs, and effectively contributes to preventing the trolley 1 from tilting. The outrigger 20 in Figures 8 and 9 includes a first horizontal arm 21A1 positioned above, a second horizontal arm 21A2 positioned between the first horizontal arm 21A1 and the loading surface 2a, and a first vertical arm 21B1, a second vertical arm 21B2, and a third vertical arm 21B3 that connect the first horizontal arm 21A1 and the second horizontal arm 21A2 and are positioned at a distance from the side closer to the loading surface 2a. The first horizontal arm 21A1 and the second horizontal arm 21A2 each have a connecting portion 22 at one end (the left end in Figure 8), and the other end is connected to the third vertical arm 21B3. The third vertical arm 21B3 has a leg portion 23 at its lower end, and the leg portion 23 is in contact with, connected to, and fixed to the deck surface 40a of the platform 40. The outrigger 20 has two horizontal arms 21A that can support the loading platform 2 at vertically separated positions. The two horizontal arms 21A are connected to a third vertical arm 21B3, and are reinforced and connected by the first and second vertical arms 21B1 and 21B2 to support and fix the trolley 1 in a braced state, preventing it from tipping over. In Figure 8, the outrigger 20 has two or more connecting parts 22 and the contact positions of the legs 23 with the deck surface 40a located on the same plane (vertical plane) perpendicular to the first direction. The connecting parts 22 have a shape and structure that allows them to be connected to and fixed to the trolley 1. The connecting portion 22 in Figure 8 has an outer diameter slightly smaller than the inner diameter of the cylindrical cargo bed frame 3, allowing the connecting portion to be inserted into and attached to the cargo bed frame 3. Furthermore, the connecting portion 22 can be fixed to the cargo bed frame 3 by inserting a retaining pin into a through hole provided in both the connecting portion 22 and the cargo bed frame 3. The leg portion 23 may have a height adjustment mechanism.

[0044] The tilt prevention section 10 in Figure 9 has a wire 25 that fixes the outrigger 20 in a taut state. By pulling the wire 25 toward the front (mountain side) and applying tension, it is possible to prevent the outrigger 20 from lifting and the trolley 1 from tilting toward the rear (valley side). After connecting the outrigger 20 to the cargo bed frame 3, the tension of the wire 25 can be increased using a wire rope fixing device such as a lever block (registered trademark), thereby fixing the outrigger 20 in a taut state. One or more wires 25 can be provided, and the number of wires can be adjusted according to the number of outriggers 20. In Figure 9, the outriggers 20A and 20B, which are spaced apart at the front and rear, are fixed in a taut state with two wires 25.

[0045] Figures 8 to 10 show that the boarding plate 30 bridges the deck surface 40a and the loading platform surface 2a, making it easier and safer for the heavy machinery 50 to enter the loading platform 2. By bridging and connecting the deck surface 40a and the loading platform surface 2a, the boarding plate 30 eliminates the gap, making it easier for the heavy machinery 50 to enter, and for its tracks, wheels, etc., to move and be guided. This provides physical assistance and psychological support to the operator of the heavy machinery 50, improving the safety of entering the loading platform 2. Furthermore, it allows confirmation that the loading platform 2 is securely supported and prevented from tilting on the running section 31. The boarding plate 30 in Figures 8 to 10 has a running section 31 on the upper surface where the heavy machinery 50 moves and a hooking section 32 that is connected to the running section 31 and can be hooked onto a receiving section 33 on the loading platform 2 side. It can be installed from above and can also be installed by sliding it from the side in the first direction. The hook portion 32 can be removed and attached while heavy objects are loaded on the loading platform 2. For example, in Figure 10, by making the running surface of the running portion 31 slightly lower than the loading platform surface 2a, the crawler (endless track) of the heavy machinery 50 loaded on the loading platform surface 2a can be kept off the running portion 31 and unloaded. Also, the hook portion 32 and receiving portion 33 in Figure 11 can be attached and detached by sliding in the direction of travel of the trolley 1, and can be attached and detached while heavy objects are loaded on the loading platform 2. This transfer plate 30 can be removed after loading the heavy machinery 50 even if the length of the heavy machinery 50 is greater than the width of the loading platform 2 and part of the heavy machinery 50 protrudes from the side of the loading platform 2.

[0046] The heavy machinery 50 can also be loaded onto the loading platform 2 of the rail running device 100 from a mounting surface 7 (Figures 14 and 15) other than the deck surface 40a of the platform 40, such as the bed of a truck (Figures 12 and 13), a foundation, the ground, or the soil. The outriggers 20 can be appropriately configured in terms of the arrangement, number, structure, and connection of frames, etc., depending on the height, condition, structure, and conditions of the mounting surface of the heavy machinery 50 before loading, as well as the required support strength and support position, and can have mounting surface fixing frames 21C that are connected and fixed to the mounting surface 7, etc. Figures 12 and 13 show an example of directly transferring the heavy machinery 50 from the bed of a transport vehicle such as a truck to the loading platform 2 and loading it. In this case, the installation of the platform 40 is unnecessary, and the heavy machinery 50 can be safely moved to the loading platform 2a by bringing the rear of the transport vehicle's bed close to the loading platform surface 2a and connecting and fixing the outriggers 20C to the mounting surface 7 and / or the transport vehicle.

[0047] The outrigger 20C in Figure 12 has a plurality of (2) horizontal arms 21A, a plurality of (3) vertical arms 21B, and a mounting surface fixing frame 21C that connects to and fixes to the mounting surface 7 and / or the transport vehicle. The mounting surface fixing frame 21C illustrated in Figure 12 has a first extension frame 21C1 that extends downward toward the mounting surface 7 toward the third vertical arm 21B3, and a second extension frame 21C2 that is connected to the first extension frame 21C1 and extends further toward the side away from the loading platform 2. The first extension frame 21C1 and the second extension frame 21C2 are provided with legs 23 on their lower end sides. The legs 23 can be driven stakes or the like. The mounting surface fixing frame 21C has a reinforcing frame 21C4 that is positioned parallel to the first extension frame 21C1 on the loading platform 2 side, connected to and reinforcing it. The reinforcing frame 21C4 can be further extended downwards and provided with legs 23 at its lower end as a third extension frame 21C3, and the legs 23 can be fixed to the installation surface 7. The second extension frame 21C2 extends diagonally downwards toward the side away from the loading platform 2 and can be connected to and fixed to the middle part of the first extension frame 21C1 (Figure 12), and can be connected to and fixed to the upper part, upper end of the first extension frame 21C1. The second extension frame 21C2 can also be extended and connected and fixed to the reinforcing frame 21C4 (third extension frame 21C3) and the horizontal arm 21A. It is preferable to connect and fix two or more outriggers 20C to the installation surface 7 and / or the transport vehicle, and in Figure 12, the legs 23 of the first and second extension frames 21C1 and 21C2 are connected and fixed to the installation surface 7 at a distanced position. As described above, multiple outriggers 20 can be provided spaced apart to improve support strength. Figure 13 shows that outriggers 20C and 20D are connected to the loading platform frames 3A and 3B, respectively, located at the front and rear of the loading platform surface 2a, to prevent the trolley 1 from tilting towards the truck. Furthermore, as shown in Figures 12 and 13, two wires 25 can be positioned spaced apart front and rear to connect and secure to the transport vehicle, allowing the outriggers 20C and 20D to be fixed in a tensed state. The wires 25 can also be fixed to the mounting surface 7.

[0048] Furthermore, as shown in Figures 14 and 15, the heavy machinery 50 can be loaded onto the loading platform 2 from a lower surface, such as the ground or a base, on a lower mounting surface 7. In this case, the heavy machinery 50 can be loaded onto the higher loading platform 2a from the mounting surface 7 using, for example, a ramp or a ramp board 30. In Figures 14 and 15, the outriggers 20E to 20H are each connected and fixed to both the left and right sides (both sides) of the loading platform frame 3, and are connected and fixed to the loading platform frames 3A and 3B at the front and rear of the loading platform 2a, respectively. A total of four outriggers 20E to 20H are connected and fixed to the four corners of the loading platform 2 (front, back, left, and right) to support the trolley 1 and prevent it from tipping over. The above configuration is effective, for example, when the surface on which the heavy machinery 50 is placed before loading is flat. Outriggers 20E to 20H can be appropriately selected according to the required support strength for the loading side and opposite side of the heavy machinery 50, the placement surface of the heavy machinery 50, and the installation surface 7. For example, in Figure 14, outrigger 20E has legs 23 at the lower end of the first extension frame 21C1, second extension frame 21C2, and third extension frame 21C3, while outrigger 20F has legs 23 at the lower end of the first extension frame 21C1. In Figure 14, outrigger 20E has a second extension frame 21C2 that is shorter and steeper than in Figure 12, and the second extension frame 21C2 is connected and fixed to the first extension frame 21C1 and third extension frame 21C3, and the legs 23 of the second extension frame 21C2 are connected and fixed to the installation surface 7 at a position closer to the loading platform 2 than in Figure 12. [Industrial applicability]

[0049] The rail travel device for inclined ground described herein can be conveniently used as a rail travel device for inclined ground that can safely load and transport heavy objects with a simple structure. [Explanation of Symbols]

[0050] 100, 900... Rail running gear 1… Dolly 2...Cargo bed; 2a...Cargo bed surface, 2b...Loading side 3, 3A, 3B... Cargo bed frame; 3b... Stopper wall 4...Wheels 5... Rail 5; 5A... Main rail, 5B, 5C... Sub-rail 7…Installation surface 8…Tilt mechanism 9…Driving mechanism 10, 10A, 10B, 10C...Tilt prevention part 11...Abutment part; 11A...Concave stripe, 11a...First part, 11b...Second part, 11c...Third part, 11d...Corner part 11B...Convex strip, 11x...1st part, 11y...2nd part, 11z...3rd part, 11w...corner part 11C…(T-shaped) convex stripe 12...Bogie coupling section 13...Abutted part; 13A...Convex strip, 13a...First part, 13b...Second part, 13c...Third part, 13d...Corner part 13B...concave stripe, 13x...first part, 13y...second part, 13z...third part, 13w...corner part 13C…concave line 14...Installation connection part 20, 20A~20H... Outrigger 21A...Horizontal arm; 21A1...First horizontal arm, 21A2...Second horizontal arm 21B...Vertical arm; 21B1...First vertical arm, 21B2...Second vertical arm, 21B3...Third vertical arm 21C...Fixing frame for mounting surface, etc.; 21C1...First extension frame, 21C2...Second extension frame, 21C3...Third extension frame, 21C4...Reinforcement frame 22...Connection part 23...legs 25... Wire 30... boarding plank 31…Running section 32...Hook part 33... Receiving part 40...Platform; 40a...Deck side 50... Heavy machinery 901... Trolley 950... Heavy machinery

Claims

1. A trolley having a platform for carrying heavy objects and traveling along multiple rails installed along the ground, A running mechanism for moving the trolley along the rail, The trolley is equipped with tilt prevention parts arranged on both sides to prevent the trolley from tilting, The aforementioned rail is, A main rail located in the center and having a non-slip structure, It has a sub-rail that is positioned at a distance from the main rail, The aforementioned tilt prevention part, A contact portion connected to the aforementioned trolley, It has a contact portion positioned opposite to the contact portion, which the contact portion contacts to prevent the trolley from tilting, A rail running device for inclined ground, wherein the contact portion and the contacted portion are arranged at a distance from the rail.

2. A rail travel device for inclined ground according to claim 1, The contact portion and the contacted portion have a fitting shape that allows them to fit together, A rail travel device for inclined ground in which the contact portion and / or the contacted portion extend in the first direction.

3. A rail travel device for inclined ground according to claim 2, The contact portion and the contacted portion each have a protrusion that projects toward the other side. The other is a rail running device for inclined ground having a recess into which the aforementioned protrusion can be fitted.

4. A rail travel device for inclined ground according to claim 1, A rail running device for inclined ground, wherein the contact portion and the contacted portion are arranged outside the rail.

5. A rail travel device for inclined ground according to claim 1, A rail running device for inclined ground, wherein the contact portion and the contacted portion are positioned above the sub-rail.

6. A rail travel device for inclined ground according to claim 1, The contact portion is connected to the trolley via the trolley connecting portion. A rail running device for inclined ground, wherein the contact portion is connected to the installation surface via an installation connecting portion.

7. A rail travel device for inclined ground according to claim 1, The side of the loading platform has a loading side that moves heavy machinery loaded from a second direction intersecting the first direction onto the loading platform, which is a rail-running device for inclined ground.

8. A rail travel device for inclined ground according to claim 1, The aforementioned trolley is a rail-running device for inclined ground having a tilting mechanism that allows the loading surface to be tilted.

9. A rail running device for inclined ground according to any one of claims 1 to 8, The aforementioned rail is, The main rail is positioned in the center, The main rail has two sub-rails that are spaced apart on both sides of it. The main rail has a non-slip structure, A rail running device for inclined ground in which the aforementioned sub-rail does not have a non-slip structure.

10. A rail travel device for inclined ground according to claim 1, The aforementioned rail is, The main rail is positioned in the center, The main rail has two sub-rails that are spaced apart on both sides of it. A rail running device for inclined terrain in which both the main rail and the sub-rail have a non-slip structure.

11. A rail running device for inclined ground according to claim 9, The aforementioned tilt prevention part, Furthermore, a rail travel device for inclined terrain having outriggers to support the trolley.

12. A rail travel device for inclined ground according to claim 11, The aforementioned tilt prevention part, A rail travel device for inclines having a wire for fixing the outrigger in a pulled state.

13. A rail travel device for inclined ground according to claim 11, The aforementioned cargo bed has a cargo bed surface and a cargo bed frame, A rail travel device for inclined ground, wherein the aforementioned cargo bed frame is connected to the outrigger at a position above the cargo bed surface.

14. A rail running device for inclined ground according to claim 9, It has a connecting plate that bridges the loading platform and the surface on which the heavy objects are placed before loading, The aforementioned connecting plate is The upper running section on which heavy objects are moved, A rail travel device for inclined terrain, having a hook portion that is connected to the aforementioned travel unit, can be hooked onto the cargo bed, and can be attached and detached when a heavy object is loaded onto the cargo bed.

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