Temporary ramp structure

Abstract

The present invention provides a temporary ramp structure with a smooth surface that allows rollers for transporting heavy objects to run on it, and which can accommodate several different heights by combining components with simple shapes. [Solution] A temporary ramp structure 1a of a certain width for transporting heavy objects is provided, and is formed by combining a sloping member 10 which is a triangular prism shape with an end face of a roughly right triangle and uses the face of a roughly right triangle as a side surface, and a rectangular parallelepiped member 20 which is a rectangular parallelepiped shape, and the sloping member and the rectangular parallelepiped member each have one or more holes 40 on the side surface of the sloping member and the side surface of the rectangular parallelepiped member, and a connecting plate 30 which spans the sloping member and the rectangular parallelepiped member and has bolt holes 30a that match the positions of the selected holes, and the sloping member and the rectangular parallelepiped member are joined by bolts using the connecting plate.

Description

Technical Field

[0001] The present invention relates to a temporary slope structure installed for transporting heavy machinery and the like.

Background Art

[0002] When transporting heavy objects such as heavy machinery in a factory or the like, the heavy object is placed on a roller for transporting heavy objects and carried (see, for example, Patent Document 1). FIG. 4 is a (a) perspective view and (b) side view of a roller for transporting heavy objects. A general roller 70 for transporting heavy objects has a urethane tire 72 attached to a main body frame 71, and some also have a top plate 73 on which a heavy object is placed. Since the roller 70 for transporting heavy objects needs to cope with height restrictions at the loading entrance, it is common to use a roller with as low a height as possible. Therefore, the thickness of the urethane tire 72 protruding downward from the main body frame 71 of the roller 70 for transporting heavy objects also becomes small, and it is difficult to travel on a ground with large irregularities.

[0003] Therefore, basically, at the site, an iron plate is laid where the roller for transporting heavy objects passes, but there may be a case where an iron plate cannot be laid due to a step. In such a case, it is necessary to install a temporary slope on which the roller for transporting heavy objects can travel to cope with the step.

[0004] And such a temporary slope has small irregularities on the surface so that the roller for transporting heavy objects can travel, and in order to facilitate the installation work at the site, it is desirable to combine members with as simple a shape as possible to form a structure that can cope with several heights.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In view of these circumstances, the present invention aims to provide a temporary ramp structure that has a smooth surface with minimal irregularities so that rollers for transporting heavy objects can run on it, and that can accommodate several different heights by combining simple-shaped components. [Means for solving the problem]

[0007] The temporary ramp structure of this invention is a temporary ramp structure of a certain width installed for transporting heavy objects, and is formed by combining a sloping member which is a triangular prism shape with substantially right-angled triangles as end faces and substantially right-angled triangles as sides, and a rectangular parallelepiped member which is a rectangular parallelepiped shape, and the sloping member and the rectangular parallelepiped member each have one or more holes on the sides, and a connecting plate which spans the sloping member and the rectangular parallelepiped member and has bolt holes that match the positions of selected holes, and the sloping member and the rectangular parallelepiped member are joined by bolts using the connecting plate.

[0008] Here, the device includes a first inclined surface member as an inclined surface member, a first rectangular parallelepiped member that is the same height as the upper end of the first inclined surface member as a rectangular parallelepiped member, and a first connecting plate that spans the first inclined surface member and the first rectangular parallelepiped member as a connecting plate. The bolt holes in the first connecting plate are fitted to the holes in the first inclined surface member and the first rectangular parallelepiped member, which are first internal threads with threads cut on the inside. The first inclined surface member and the first rectangular parallelepiped member are joined by screwing bolts into the first internal threads using the first connecting plate.

[0009] Furthermore, the structure includes a second inclined member having the same configuration as the first inclined member, a second rectangular parallelepiped member having the same height as the first rectangular parallelepiped member but being shorter than the first rectangular parallelepiped member, the second rectangular parallelepiped member and the second inclined member being placed on top of the first rectangular parallelepiped member, and a second connecting plate spanning the second rectangular parallelepiped member, the second inclined member and the first rectangular parallelepiped member as a connecting plate, wherein the bolt holes in the second connecting plate are fitted into the holes in the second rectangular parallelepiped member, the second inclined member and the first rectangular parallelepiped member, which are second internal threads with threads cut on the inside, and the second inclined member, the second rectangular parallelepiped member and the first rectangular parallelepiped member are joined by screwing bolts into the second internal threads using the second connecting plate.

[0010] Furthermore, the structure includes a third inclined member having the same gradient as the first inclined member but a shorter inclination length, the third inclined member being placed on top of the second rectangular parallelepiped member, and a third connecting plate spanning the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member as a connecting plate, wherein the bolt holes in the third connecting plate are fitted to the holes in the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member, which are third internally threaded holes, and the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member are joined by screwing bolts into the third internal threads using the third connecting plate. [Effects of the Invention]

[0011] According to this invention, by combining a simple-shaped inclined member and a rectangular parallelepiped member and fastening them together with bolts using a connecting plate, a temporary slope structure is provided that has minimal surface irregularities and can easily accommodate several different heights. Furthermore, the members can be easily joined together by screwing bolts into the female threads using the connecting plate. [Brief explanation of the drawing]

[0012] [Figure 1] (a) an exploded view and (b) a completed view of a temporary slope structure using one sloping member and one rectangular member. [Figure 2](a) an exploded view and (b) a completed view of the temporary ramp structure of the present invention. [Figure 3] This is a side view of a temporary ramp structure with gradually increasing height. [Figure 4] (a) A perspective view and (b) A side view of a roller for transporting heavy objects. [Modes for carrying out the invention]

[0013] This invention relates to a temporary ramp structure installed to overcome steps and obstacles when transporting heavy objects such as heavy machinery using rollers for transporting heavy objects. Embodiments of this invention will be described below with reference to the attached drawings.

[0014] Figure 1 shows (a) an exploded view and (b) a completed view of a temporary ramp structure using one inclined member and one rectangular parallelepiped member. This temporary ramp structure 1a has a structure that connects a slope rising from the floor to a certain height with a horizontal road surface at a certain height.

[0015] The temporary ramp structure 1a of this invention is formed by combining a slope member 10, which is shaped like a triangular prism lying on its side, and a rectangular parallelepiped member 20, which is shaped like a rectangular parallelepiped. Here, the slope member 10 and the rectangular parallelepiped member 20 are made from iron plates or aluminum plates.

[0016] Regarding the inclined member 10, the end face of the triangular prism shape is approximately a right triangle, and since the triangular prism is used lying down, the approximately right triangle of the end face becomes the side surface. The reason why the side shape of the inclined member 10 is approximately a right triangle is that, strictly speaking, a height of about the thickness of the board remains from the floor surface at the bottom end of the inclined, and it is difficult to manufacture the height at the bottom end to be zero. Specifically, a step of about 1.5 mm remains at the bottom end of the inclined, but this step is not significant enough to cause problems for rollers used to transport heavy objects.

[0017] Furthermore, since the width of the temporary slope structure 1a is constant, the widths of the slope members 10 and rectangular parallelepiped members 20 are all constant. For example, if the temporary slope structure 1a is 300 mm wide, it is possible to run a roller for transporting heavy objects on it.

[0018] Furthermore, one or more holes 40 are formed at the necessary positions on the sides of the inclined member 10 and the rectangular parallelepiped member 20. Then, by joining the members together with bolts using a connecting plate 30 that spans the inclined member 10 and the rectangular parallelepiped member 20 and has bolt holes 30a that match the positions of the selected holes, it is possible to prevent the individual members constituting the temporary slope structure 1a from shifting or coming loose. Note that the bolting can be done by passing a bolt through the hole 40 and the bolt hole 30a and tightening it with a nut, or by cutting a thread inside the hole 40 to make it a female thread and screwing the bolt into it.

[0019] The temporary ramp structure can be constructed at several different heights by combining sloping members and rectangular parallelepiped members. Figure 2 shows (a) an exploded view and (b) a completed view of the temporary ramp structure of the present invention. Figure 3 is a side view of the temporary ramp structure with gradually increasing heights, showing examples corresponding to three different heights H1, H2, and H3, respectively (a), (b), and (c). Figure 3(c) is a side view of the temporary ramp structure 1 of Figure 2.

[0020] The temporary slope structure 1a in Fig. 3(a) is constructed using a first inclined member 11, a first rectangular parallelepiped member 21, and a first connection plate 31. The first inclined member 11 has a side surface that is a substantially right triangle and has a slope with a constant gradient, and is an inclined member that rises up to a height H1. Also, the first rectangular parallelepiped member 21 is a rectangular parallelepiped member with a side length equal to the same height H1 as the upper end of the slope of the first inclined member 11. Also, the first connection plate 31 is a connection plate used for bolting across the side surfaces of the first inclined member 11 and the first rectangular parallelepiped member 21. And by abutting the first rectangular parallelepiped member 21 against the end surface on the upper end side of the first inclined member 11, the passage for the roller for transporting heavy objects forms a road surface that rises up the slope of the first inclined member 11 from the floor surface and becomes horizontal when it reaches the upper end.

[0021] One or more holes are formed in each of the side surface of the first inclined member 11 and the side surface of the first rectangular parallelepiped member 21. However, the holes selected for joining using the first connection plate 31 are first female threads 41 with internal threads, and are formed at positions close to the contact surface between the first inclined member 11 and the first rectangular parallelepiped member 21. And since the first connection plate 31 has bolt holes 31a that match the positions of the first female threads 41, by screwing bolts through the bolt holes 31a of the first connection plate 31, the first inclined member 11 and the first rectangular parallelepiped member 21 are joined.

[0022] The temporary slope structure 1b in Fig. 3(b) is constructed by adding a second inclined member 12 and a second rectangular parallelepiped member 22 to the temporary slope structure 1a constructed in Fig. 3(a), and the height of the upper end of the slope is H2. Here, the second inclined member 12 is an inclined member having the same configuration as the first inclined member 11. Also, the second rectangular parallelepiped member 22 has the same height H1 as the first rectangular parallelepiped member 21 and is a rectangular parallelepiped member with a length shorter than that of the first rectangular parallelepiped member 21. That is, the second rectangular parallelepiped member 22 is a smaller member than the first rectangular parallelepiped member 21. When the second inclined member 12 and the second rectangular parallelepiped member 22 are placed side by side on the first rectangular parallelepiped member 21, it is preferable to set the length such that the rear ends of the first rectangular parallelepiped member 21 and the second rectangular parallelepiped member 22 coincide.

[0023] Furthermore, holes 40 are also formed on the side surface of the second rectangular parallelepiped member 22, and the second connecting plate 32 is bolted together using a second connecting plate 32 that has bolt holes 32a that fit the positions of the selected holes, spanning across the second rectangular parallelepiped member 22, the second inclined surface member 12, and the first rectangular parallelepiped member 21. In this case, the holes in the second connecting plate 32 that fit the bolt holes 32a can also be second female threads 52 with internal threads. The positions of the second female threads 52 are slightly towards the rear end from the center of the side surface of the first rectangular parallelepiped member 21, near the rear end of the second inclined surface member 12, and near the front end of the second rectangular parallelepiped member 22. In the figure, there are two second female threads 52 slightly towards the rear end from the center of the side surface of the first rectangular parallelepiped member 21, but there may be only one.

[0024] The temporary slope structure 1 in Figure 3(c) is constructed by adding a third sloping member 13 to the temporary slope structure 1b constructed in Figure 3(b) to achieve a height of H3. Alternatively, a third rectangular parallelepiped member 23 with the same height as the upper end of the slope (H3) may be added to the upper end face of the temporary slope structure 1.

[0025] The third inclined member 13 has the same gradient as the first inclined member 11, but with a shorter inclination length. In other words, the shape of the approximately right triangle on the side is nearly similar between the first inclined member 11 and the third inclined member 13. Since the third inclined member 13 is placed on top of the second rectangular parallelepiped member 22 with its rear end aligned, the horizontal length of the third inclined member 13 is shorter than the length of the second rectangular parallelepiped member 22.

[0026] Furthermore, holes 40 are also formed on the side surface of the third inclined member 13, and the second rectangular parallelepiped member 22, the third inclined member 13, and the first rectangular parallelepiped member 21 are bolted together using a third connecting plate 33 that has bolt holes 33a that fit the positions of the selected holes. In this case, the holes in the third connecting plate 33 that fit the bolt holes 33a should also be third female threads 53 with internal threads. The positions of the third female threads 53 are near the rear end of the third inclined member 13, near the rear end of the second rectangular parallelepiped member 22, and near the rear end of the first rectangular parallelepiped member. If a third rectangular parallelepiped member 23 is to be provided, a third female thread 53 should also be provided on the side surface of the third rectangular parallelepiped member 23, so that the third connecting plate 33 extends over the third rectangular parallelepiped member 23.

[0027] Finally, here is an example of specific numerical values ​​for each component. Here, each component is determined so that H1 is 25mm, H2 is 50mm, and H3 is 60mm. The width of each component is kept constant at 300mm, as mentioned earlier.

[0028] For the inclined members, if the height of the first inclined member 11 and the second inclined member 12 is set to 25 mm and the horizontal length of the members is set to 470 mm, there is a step of 1.5 mm at the tip, so the slope of the inclined member will be 5%. Also, if the height of the third inclined member 13 is set to 10 mm and the horizontal length of the member is set to 170 mm in order to make the slope of the inclined member 5%, then the slope of the third inclined member 13 will also be 5%.

[0029] For the rectangular prism members, the first rectangular prism member 21 should have a height of 25 mm and a length of 700 mm. The second rectangular prism member 22 should have a height of 25 mm and a length of 200 mm.

[0030] By using the components described above, a temporary ramp structure 1 can be formed that can reach a height of 60 mm if the length is 1170 mm. Due to the manufacturing process of the components, a 1.5 mm step is created between the horizontal section and the ramp midway through the slope, but the unevenness is small, and the overall slope is 5%, which poses no problem for rollers used to transport heavy objects.

[0031] Furthermore, by using connecting plates to link the sides of each component, it becomes possible to easily construct slopes of several different heights. [Explanation of Symbols]

[0032] 1,1a,1b Slope structure 10 Inclined member 11 First inclined member 12 Second inclined member 13 Third inclined member 20 Rectangular parallelepiped members 21 First rectangular parallelepiped member 22 Second rectangular parallelepiped member 23 Third rectangular parallelepiped member 30 connection plates 30a Bolt hole 31 First connecting plate 31a Bolt hole 32 Second connecting plate 32a Bolt hole 33 Third connecting plate 33a Bolt hole 40 holes 41 First female thread 42 Second female thread 43 Third female thread

Claims

1. A temporary ramp structure of a certain width installed for transporting heavy objects, It is formed by combining a triangular prism-shaped member with approximately right-angled triangles as end faces and a rectangular parallelepiped-shaped member, The sides of the inclined member and the rectangular parallelepiped member are each provided with one or more holes, and the inclined member and the rectangular parallelepiped member each have a connecting plate with bolt holes that fit the positions of the selected holes, A temporary ramp structure characterized in that the inclined member and the rectangular parallelepiped member are joined together by bolts using the connecting plate.

2. The inclined surface member comprises a first inclined surface member, the rectangular parallelepiped member comprises a first rectangular parallelepiped member having the same height as the upper end of the first inclined surface member, and the connecting plate comprises a first connecting plate spanning the first inclined surface member and the first rectangular parallelepiped member. The temporary ramp structure according to claim 1, characterized in that the bolt holes in the first connecting plate are fitted to the holes in the first inclined member and the first rectangular parallelepiped member, which are first internal threads with threads cut on the inside, and the first inclined member and the first rectangular parallelepiped member are joined by screwing bolts into the first internal threads using the first connecting plate.

3. Furthermore, the inclined surface member includes a second inclined surface member having the same configuration as the first inclined surface member, the rectangular parallelepiped member includes a second rectangular parallelepiped member that is the same height as the first rectangular parallelepiped member but shorter than the first rectangular parallelepiped member, the second rectangular parallelepiped member and the second inclined surface member are placed on top of the first rectangular parallelepiped member, and the connecting plate includes a second connecting plate that spans the second rectangular parallelepiped member, the second inclined surface member and the first rectangular parallelepiped member, The temporary ramp structure according to claim 2, characterized in that the bolt holes of the second connecting plate are fitted to the second rectangular parallelepiped member, the second inclined surface member, and the first rectangular parallelepiped member, and the holes provided in the second rectangular parallelepiped member and the first rectangular parallelepiped member are second female threads with internal threads, and the second inclined surface member, the second rectangular parallelepiped member and the first rectangular parallelepiped member are joined by screwing bolts into the second female threads using the second connecting plate.

4. Furthermore, the inclined member includes a third inclined member having the same gradient as the first inclined member but a shorter inclined length, the third inclined member being placed on top of the second rectangular parallelepiped member, and a third connecting plate spanning the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member, The temporary ramp structure according to claim 3, characterized in that the bolt holes of the third connecting plate are fitted to the holes in the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member, which are third female threads with internal threads, and the second rectangular parallelepiped member, the third inclined member, and the first rectangular parallelepiped member are joined by screwing bolts into the third female threads using the third connecting plate.

Images