Scaffolding platform for heavy machinery

Abstract

To solve the problem in which, in order to stably support a heavy machine on an inclined plane, two units of a first scaffold base and a second scaffold base are needed, and in order to allow the heavy machine to travel further upward along the inclined surface and to continue construction there, a third scaffold base is needed; however, the number of scaffold bases to be used is needed to be suppressed.SOLUTION: A scaffold base includes: a base plate part capable of supporting an endless track and wheels of a heavy machine; and a support part for supporting the base plate part with respect to an inclined surface. The support part includes: a fulcrum part which is farthest away from the base plate part; and a first grounding part formed between the fulcrum part and a front end of the base plate part when the base plate part is horizontal, and grounding on the inclined surface. The base plate part is longer than the endless track and a wheel base of the wheel, and when the center of gravity of the heavy machine is positioned further on the tip side than the fulcrum point, it oscillates around the fulcrum part, and the first grounding part grounds on the inclined surface so that the base plate part becomes horizontal.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a scaffolding platform for heavy machinery used on a forward upward inclined surface.

Background Art

[0002] In order for a heavy machine to function, it is a prerequisite that the endless tracks or wheel scaffolds of the heavy machine are stable. Therefore, in order to make the heavy machine function on an inclined surface, it is required to install a horizontal scaffold on the inclined surface. FIG. 1 shows conventional scaffolding platforms 5a and 5b. The first scaffolding platform 5a includes a substrate portion 6a that supports the endless tracks 4 of the heavy machine 3 and a grounding portion 7a that is grounded on the inclined surface 1. The substrate portion 6a and the grounding portion 7a are reinforced by a reinforcing portion having a truss structure. The included angle between the substrate portion 6a and the grounding portion 7a is made equal to the inclination angle of the inclined surface 1, so that the substrate portion 6a is horizontal and becomes a stable scaffold for the heavy machine 3 (for the purpose of stably supporting the substrate portion).

[0003] [[ID=十七]] In order to make the substrate portion 6a horizontal in the first scaffolding platform 5a, its rear end (the traveling direction of the heavy machine is forward, the same in this specification) is separated from the inclined surface 1. Therefore, the second scaffolding platform 5b is prepared. By connecting this second scaffolding platform 5b to the first scaffolding platform 5a, the substrate portion 6b of this second scaffolding platform 5b travels (for the purpose of climbing the slope of the substrate portion), and the heavy machine 3 can get on the substrate portion 6a of the first scaffolding platform 5a. This second scaffolding platform 5b includes a substrate portion 6b and a grounding portion 7b, and has the same structure as the scaffolding platform 5a. In other words, if the second scaffolding platform 5b is rotated 180 degrees along the inclined surface 1, it becomes the same as the first scaffolding platform 5a.

[0004] [[ID=2二十二]] In order to move the heavy machine 3 that has finished working in the state of FIG. 1 further upward along the inclined surface 1, the following operations are required. First, using the heavy machine 3, a third scaffolding platform (having the same structure as the first scaffolding platform 5a) not shown is installed, and its substrate portion is made a horizontal and stable scaffolding platform. Next, the second scaffolding platform 5b is lifted by the heavy machine 3 and connected to the already grounded third scaffolding platform. For prior art documents related to this invention, refer to Patent Document 1.

Prior Art Documents

[0005] [Patent Document 1] Patent No. 6785539 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] In conventional construction methods, as shown in Figure 1, two scaffolding units, the first scaffolding platform 5a and the second scaffolding platform 5b, were required to stably support heavy machinery on an inclined surface. To allow the heavy machinery 3 to travel further up along the inclined surface 1 and continue construction there, a third scaffolding platform (with the same structure as the first and second scaffolding platforms) is required. In other words, three sets of scaffolding platforms are needed. [Means for solving the problem]

[0007] The inventors diligently studied and investigated the above problems, and as a result, they realized that by swinging the scaffolding platform like a seesaw, a scaffolding platform could be assembled with a single unit. In other words, the scaffolding platform in the first phase of this invention is defined as follows: A scaffolding platform for heavy machinery used on a forward-upward slope, A base plate capable of supporting the tracks and wheels of the aforementioned heavy machinery, The substrate portion is supported by a support portion that supports the inclined surface. The support portion has a pivot point furthest from the base portion, When the substrate portion is in a horizontal position, it comprises a first grounding portion formed between the pivot point portion and the front end of the substrate portion, which contacts the inclined surface, The base plate is longer than the wheelbase of the tracks or wheels, and when the center of gravity of the heavy machine is located towards the front of the pivot point, the pivot point swings in the middle, causing the first ground contact point to contact the inclined surface so that the base plate becomes horizontal.

[0008] According to this defined scaffolding platform, the base plate is pivotable in its longitudinal direction around the pivot point. When this scaffolding platform is placed on an inclined surface, the base plate, in an unloaded state, makes contact with the inclined surface at its rear end. This allows the tracks or wheels of heavy machinery to be placed on the base plate. In this state, the inclination angle of the base plate is greater than the inclination angle of the inclined surface. As the heavy machinery moves forward of the base plate and passes the pivot point, the base plate swings, moving its rear end away from the inclined surface and its front end closer to the inclined surface. The swinging of the base plate is stopped when it becomes horizontal. The stopping of the swinging of the base plate is due to the first contact point making contact with the inclined surface. To stabilize the horizontal position of the base plate, it is preferable to interpose an auxiliary support between the rear end of the base plate and the inclined surface. According to this invention, the base plate swings, so a single base plate has two functions: climbing heavy machinery and providing stable support for heavy machinery. Therefore, a single set of scaffolding platforms, each with a single base plate, can provide a stable platform for heavy machinery on an inclined surface.

[0009] In the above, when the substrate is in a horizontal position, it is preferable that the tip of the substrate is in contact with the inclined surface. This is because when the heavy machinery is moved further forward, it is possible for the tip of the substrate to move smoothly from the substrate to the inclined surface.

[0010] In the scaffolding platform of this invention, when no heavy machinery is placed on the base plate, i.e., when the base plate is unloaded, the rear end of the base plate makes contact with the inclined surface. The heavy machinery ascends the base plate in this state. It is preferable to provide a second contact point between the pivot point and the rear end of the base plate so that the ascending heavy machinery can be supported by the base plate. This second contact point has a surface parallel to the inclined surface when the base plate is unloaded. This stabilizes the support for the base plate. This second contact point maintains contact with the inclined surface until the heavy machinery passes the pivot point and the base plate begins to swing.

[0011] When heavy machinery travels over a pivotable base plate, sudden swings may cause the machinery to be struck or even derail from the base plate. Therefore, it is preferable to provide an adjustment mechanism in the support section to adjust the tilt of the base plate. A rack and pinion structure can be adopted for the adjustment mechanism. In this structure, the gear section is provided on the pivot point side, and the rack section is provided on the inclined surface side to which the pivot point makes contact. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view showing a conventional scaffolding platform. [Figure 2] Figure 2 is a side view showing the scaffolding platform of this invention. [Figure 3] Figure 3 is a diagram illustrating the operation of the scaffolding platform of this invention. [Figure 4] Figure 4 is a rear view of Figure 2. [Figure 5] Figure 5 is a schematic diagram illustrating the installation process of the scaffolding platform according to this invention. [Figure 6] Figure 6 is a schematic diagram showing the conventional scaffolding platform installation process. [Modes for carrying out the invention]

[0013] As shown in Figure 2, the scaffolding platform 10 of this invention comprises a support portion 11, a base plate portion 16, and an auxiliary support portion 21. The support portion 11 has a trapezoidal outer casing with the same width as the base portion 16 and includes a pivot point portion 12, a first grounding portion 17, and a second grounding portion 18. The base portion 16, the first grounding portion 17, and the second grounding portion 18 form a triangle in side view. In this example, it is an isosceles triangle with the pivot point portion 12 as its vertex, but it is not limited to this, and the pivot point portion 12 can also be located towards the front end of the center of the base portion 16. The pivot point 12 is furthest from the base plate 16 and is located at or near the center of the base plate 16 in its longitudinal direction. As a result, in an unloaded state, the base plate 16 is stable with its rear end in contact with the inclined surface 1, as shown in Figure 3.

[0014] The substrate portion 16 is composed of a steel plate having rigidity that does not deform when the heavy machine 3 rides on it. This substrate portion 16 is longer than the endless track 4 of the heavy machine 3, whereby the substrate portion 16 is provided with the ramp use and the stable support use for the heavy machine 3. The first grounding portion 17 and the second grounding portion 18 can be formed of a steel plate, and a reinforcing member having a truss structure can be interposed between the substrate portion 16 and the first grounding portion 17 and the second grounding portion 18.

[0015] The included angle between the surface of the first grounding portion 17 facing the inclined surface 1 and the substrate portion 16 is made equal to the inclination angle of the inclined surface 1. Thereby, the substrate portion 16 can be stably supported horizontally in a state where the first grounding portion 17 is grounded on the inclined surface 1. An auxiliary support portion 21 is provided between the rear end side of the substrate portion 16, that is, between the second grounding portion 18 and the inclined surface 1, to make the horizontality of the substrate portion 16 more reliable. As the auxiliary support portion 21, a columnar member is employed in this example, but its shape and structure are not particularly limited.

[0016] Reference numeral 30 is a lining portion, and this lining portion 30 is provided with a rack portion 35 in which a plurality of convex portions are arranged in a row. The fulcrum portion 12 of the scaffold base 10 is provided with a pinion portion 33 in which a plurality of convex portions are arranged on a virtual circumference. The rack portion 35 and the pinion portion 33 constitute a rack and pinion portion 31 (tilt adjustment portion). By the action of this rack and pinion portion 31, the rocking of the substrate portion 16 is controlled. That is, by restricting the running of the heavy machine so that the engagement of the pinion portion 33 with respect to the rack portion 35 is maintained, a sudden rocking of the substrate portion 16 can be prevented. In addition, by the engagement of the rack portion 35 and the pinion portion 33, it is possible to prevent the fulcrum portion 12 from sliding downward on the inclined surface 1.

[0017] In the state of FIG. 2, the heavy machine 3 is stably supported by the scaffold base 10. FIG. 3 shows a state immediately before the heavy machine 3 rides on the scaffold base 10. In the state shown in Figure 3, the unloaded base plate 16 has its rear end in contact with the inclined surface 1. In this state, the second grounding part 18 is in contact with the inclined surface 1 and supports the base plate 16. As a result, the heavy machinery 3 can stably climb the base plate 16. Note that the auxiliary support part 21 is not used in this state. As the heavy machinery 3 moves forward while climbing the base plate section 16, the base plate section 16 begins to swing when the center of gravity of the heavy machinery 3 passes the pivot point section 12.

[0018] During such oscillation, the rack portion 35 and the pinion portion 33 engage, preventing the pivot point 12 from sliding downward. Furthermore, by adjusting the movement of the heavy machinery 3 so that the rack portion 35 and the pinion portion 33 engage securely, the oscillation of the base plate portion 16 can be effectively controlled. With the board portion 16 in the state shown in Figure 2, that is, in a horizontal position, the auxiliary support portion 21 is assembled between the second grounding portion 18 and the inclined surface 1. Figure 4 shows the back view in the state shown in Figure 2.

[0019] Figure 5 shows the process of installing the next scaffolding platform, based on the state shown in Figure 2, in order to carry out construction work at a position further above the inclined surface 1. In step I, as shown in Figure 2, a second scaffolding platform 110 is prepared. This second scaffolding platform 110 is assumed to be pre-placed within the working radius of the heavy machinery 3. When the construction is complete in the state shown in Figure 2, the heavy machinery lifts the second scaffolding platform 110 and places it in front of the first scaffolding platform 10. In Figure 5, there is a gap between the first scaffolding platform 10 and the second scaffolding platform 110, but they may be placed consecutively. From the standpoint of construction efficiency, it is preferable to place the second scaffolding platform 110 further away from the first scaffolding platform 10. The working radius of the heavy machinery 3 determines the placement of the second scaffolding platform 110. As can be seen from Figure 5, even in step II of Figure 5, which shows the process of the upper construction, only one scaffolding platform (second scaffolding platform 110) is used.

[0020] Figure 6 shows the scaffolding installation process when using a conventional scaffolding platform. The same elements as in Figure 1 are denoted by the same reference numerals. In step I, as shown in Figure 1, a third scaffolding platform 205 is prepared. This third scaffolding platform 205 is assumed to be pre-placed within the working radius of the heavy machinery 3. Once the construction is complete in the state shown in Figure 1, the heavy machinery lifts the third scaffolding platform 205 and places it in front of the first scaffolding platform 10. Next, the second scaffolding platform 5b is lifted and connected to the third scaffolding platform 205. The working radius of heavy machinery 3 determines the installation position of the third scaffolding platform 205. As can be seen from Figure 6, in step II of Figure 6, which shows the construction process for the upper part of the building, two scaffolding platforms (the third scaffolding platform 205 and the second scaffolding platform 5b) are used. Therefore, it can be seen that setting up the scaffolding platforms is more time-consuming compared to the scaffolding platform of this invention shown in Figure 5.

[0021] This invention is not limited to the above-described embodiments or drawings, and any design modifications are possible within the scope that can be understood by those skilled in the art. [Explanation of Symbols]

[0022] 1 Slope 3 Heavy machinery 4 Tracks 10 Scaffolding platform 11 Support part 12. Support point 16 Circuit board section 17 1st grounding section 18 2nd grounding part

Claims

1. A scaffolding platform for heavy machinery used on an upward-sloping surface, A base plate capable of supporting the tracks and wheels of the aforementioned heavy machinery, The substrate portion is supported by a support portion that supports the inclined surface. The support portion has a pivot point furthest from the base portion, When the substrate portion is in a horizontal position, it comprises a first grounding portion formed between the pivot point portion and the front end of the substrate portion, which contacts the inclined surface, The base plate is longer than the wheelbase of the tracks or wheels, and when the center of gravity of the heavy machine is located towards the front of the pivot point, the base plate tilts around the pivot point so that the first ground contact point makes contact with the inclined surface, making the base plate horizontal.

2. When there is no load on the substrate portion, the rear end of the substrate portion contacts the inclined surface, allowing it to receive the tracks or wheels of the heavy machinery. The scaffolding platform according to claim 1, wherein when the heavy machinery moves the base plate towards the tip and its center of gravity is located towards the tip from the pivot point, the base plate tilts and becomes horizontal.

3. The scaffolding platform according to claim 2, wherein the substrate portion is in a horizontal position and the tip of the substrate portion is in contact with the inclined surface.

4. The scaffolding platform according to claim 1, wherein a second grounding portion is provided between the fulcrum portion and the rear end of the base plate portion, and when there is no load on the base plate portion, the second grounding portion has a surface parallel to the inclined surface.

5. The scaffolding platform according to claim 1, wherein the support portion is provided with a tilt adjustment portion for adjusting the tilt of the substrate portion.

6. The scaffolding platform according to claim 1, wherein the pivot point is provided with an anti-slip member.

7. The scaffolding platform according to any one of claims 1 to 6, further comprising an auxiliary support portion that supports the rear end of the substrate portion with respect to the inclined surface when the substrate portion is in a horizontal position.

8. A method for supporting heavy machinery used on an upward-sloping surface, The steps include preparing a first base plate capable of supporting the tracks and wheels of the heavy machine, and the first base plate being supported on the inclined surface by a first support, the first support having a first pivot point, and the first base plate being pivotable around the first pivot point. A travel step in which the heavy machine is driven forward from the rear end of the first substrate portion while the rear end of the first substrate portion is in contact with the inclined surface, As the heavy machinery moves, the first base plate is swung around the first pivot point, causing its rear end to move away from the inclined surface (swinging step), A horizontal maintenance step in which the rear end of the first substrate portion is supported by an auxiliary support portion while the first substrate portion is in a horizontal position, and the horizontal state of the first substrate portion is maintained by the auxiliary support portion, A method for supporting heavy machinery, including the support of such machinery.

9. The steps include preparing a second scaffolding platform equipped with a second support point, The support method according to claim 8, further comprising the step of positioning the second support portion on the inclined surface at the furthest position permissible for the heavy machine in front of the heavy machine in the direction of travel of the heavy machine, and bringing the rear end of the second base portion of the second scaffolding platform into contact with the inclined surface.

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