Lifting machine

Abstract

To provide a lifting machine capable of easily securing the route to transport components to the position of the lifting device.SOLUTION: A lifting machine 1 is the one for installing a component 3. The lifting machine 1 comprises a lifting device 4 to lift the component 3, a first beam 5 where the lifting device 4 is installed, and a pair of leg parts 6 to support the first beam 5. The leg part 6 comprises a second beam 9 extending in the direction intersecting with the first beam 5 in a plan view, a pair of braces 10 to support the second beam 9, and a passage 11 formed between one brace 10 and the other brace 10 among the pair of braces 10 and through which the component 3 can pass.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a lifting machine. [Background technology]

[0002] A conventional lifting machine is, for example, the lifting machine described in Patent Document 1 (referred to as a "gantry crane" in the document). The lifting machine described in Patent Document 1 is a lifting machine for installing components, and includes a lifting device for lifting the components (referred to as a "hoist

[15] " in the document), a first beam to which the lifting device is attached (referred to as a "running girder

[12] " in the document), and a pair of legs for supporting the first beam (referred to as "support legs

[13] ,

[14] " in the document). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-43038 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the lifting machine described in Patent Document 1, the component needs to be transported to the location of the lifting device in order to attach it to the lifting device. However, depending on the location where the lifting machine is installed (e.g., a narrow space), it may be difficult to secure a path for transporting the component to the location of the lifting device due to space constraints.

[0005] In view of the above circumstances, there is a demand for a lifting machine that can easily secure a path for transporting a member to the position of a lifting device. [Means for solving the problem]

[0006] A feature of the present invention is a lifting machine for installing a component, comprising a lifting device for lifting the component, a first beam to which the lifting device is attached, and a pair of legs supporting the first beam, the legs having a second beam extending in a direction intersecting the first beam in a plan view, a pair of pillars supporting the second beam, and a passage formed between one pillar and the other pillar of the pair of pillars, through which the component can pass.

[0007] According to this characteristic configuration, the member can be easily transported to the position of the lifting device by passing through the passage. For example, even if there is no space on either side of the extension direction of the second beam around the lifting machine, the member can be easily transported to the position of the lifting device by passing through the passage. In other words, a path for transporting the member to the position of the lifting device can be easily secured.

[0008] Furthermore, in the present invention, it is preferable that the second beam is provided spanning the upper end of the first pillar and the upper end of the other pillar, and the leg is formed into an approximately gate-shaped shape by the second beam and the pair of pillars.

[0009] According to this characteristic configuration, the width of the passage is ensured, so that even large components can pass through the passage.

[0010] Furthermore, in the present invention, it is preferable that the support column is configured to be extendable and contractible.

[0011] According to this characteristic configuration, the height of the lifting machine can be easily adjusted by extending and contracting the support pole.

[0012] Furthermore, in the present invention, it is preferable that the first beam is releasably connected to the second beam.

[0013] According to this characteristic configuration, the lifting machine can be easily assembled by connecting the first beam to the second beam, and the lifting machine can be easily disassembled by disconnecting the first beam from the second beam.

[0014] Furthermore, in the present invention, it is preferable that the second beam is releasably connected to the support column.

[0015] According to this characteristic configuration, the lifting machine can be easily assembled by connecting the second beam to the support column, and the lifting machine can be easily disassembled by disconnecting the second beam from the support column.

[0016] Furthermore, in the present invention, it is preferable that the member is a foundation for supporting a platform fence installed on a platform at a railway station.

[0017] Generally, there are many space restrictions on train station platforms. According to the present characteristic configuration, even in a place with many space restrictions such as a train station platform, the member can be easily transported to the position of the lifting device by passing through the passage. [Brief description of the drawings]

[0018] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 4 is a flow chart showing the assembly process of the lifting machine. [Diagram 5] FIG. [Figure 6] A diagram showing the first beam mounting process. [Figure 7] 1A and 1B are diagrams showing a lifting device installation process. [Figure 8] FIG. 13 is a diagram showing a strut extension process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] An embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3 show a lifting machine 1. The lifting machine 1 is a lifting machine for installing a foundation 3 (corresponding to a "member" according to the present invention) on a platform 2 of a railway station. In the following description, the direction of the arrow T is the "track side", the direction of the arrow H is the "platform side", the direction of the arrow L is the "left side", and the direction of the arrow R is the "right side".

[0020] The foundation 3 is a foundation that supports a platform fence (not shown) that is installed on the platform 2. The foundation 3 is a precast concrete member. The location on the platform 2 where the foundation 3 is to be installed is excavated to form an opening 2a.

[0021] The lifting machine 1 is equipped with a lifting device 4 that lifts the foundation 3, a first beam 5 to which the lifting device 4 is attached, and a pair of legs 6 that support the first beam 5.

[0022] The lifting device 4 includes a trolley 7 and an electric chain block 8. The trolley 7 is attached to the first beam 5 so as to be movable in the extension direction (left-right direction) of the first beam 5. The electric chain block 8 is configured to be able to ascend and descend the foundation 3.

[0023] The first beam 5 extends in the left-right direction and is provided between the upper end of the left leg 6 and the upper end of the right leg 6.

[0024] The leg portion 6 includes a second beam 9, a pair of support columns 10, and a passage 11. The leg portion 6 is formed by the second beam 9 and the pair of support columns 10 into a substantially gate-like shape.

[0025] The second beam 9 extends in a direction intersecting (orthogonal to) the first beam 5 in a plan view. The second beam 9 is provided across an upper end of the pillar 10 on the track side and an upper end of the pillar 10 on the platform side. The second beam 9 is connected to the pillar 10 in a manner that allows it to be detached.

[0026] The first beam 5 is releasably connected to the second beam 9. Specifically, the left end of the first beam 5 is releasably connected to the center of the left second beam 9 in the extension direction by a pin P. The right end of the first beam 5 is releasably connected to the center of the right second beam 9 in the extension direction by a pin P.

[0027] The pillar 10 supports the second beam 9. The pillar 10 includes an upper pillar portion 12, a lower pillar portion 13, a base portion 14, and an operating handle 15. The upper pillar portion 12 is configured to be adjustable in height. Specifically, the upper pillar portion 12 is configured to be adjustable in height in three stages (low position P1, middle position P2, and high position P3 shown in FIG. 1). In other words, the pillar 10 is configured to be extendable and retractable. The height of the upper pillar portion 12 can be adjusted by the operating handle 15.

[0028] The base 14 extends in the left-right direction. The base 14 is connected to the lower end of the lower column portion 13. The base 14 includes a plurality of casters 16 (two in this embodiment) and an adjuster device 17. The lifting machine 1 is configured to be movable by the casters 16. The adjuster device 17 functions as a stopper for the casters 16. The adjuster device 17 serves to suppress the movement of the lifting machine 1, thereby improving the stability of the lifting machine 1.

[0029] The right leg 6 is provided with a mounting portion 19 on which a generator 18 for the electric chain block 8 can be placed. The mounting portion 19 is attached to the base portion 14 of the right leg 6 on the platform side.

[0030] A passage 11 through which the foundation 3 can pass is formed between one support 10 and the other support 10 of the pair of supports 10. The passage 11 has a width W1. The width W1 of the passage 11 is synonymous with the distance between the pair of supports 10.

[0031] The foundation 3 has a width W2 and a length L2. The width W2 of the foundation 3 is the length in the short direction of the foundation 3 in a plan view. The length L2 of the foundation 3 is the length in the long direction of the foundation 3 in a plan view. The length L2 of the foundation 3 is greater than the width W1 of the passage 11, but the width W2 of the foundation 3 is smaller than the width W1 of the passage 11.

[0032] The installation of the foundation 3 using the lifting machine 1 is carried out in the following order. The foundation 3 is transported to the position of the lifting device 4 by the cart 20 (at that time, the foundation 3 and the cart 20 pass through the passage 11 with the width W2 direction of the foundation 3 aligned with the width W1 direction of the passage 11). - Raise the foundation 3 by means of the lifting device 4. The foundation 3 is moved left and right to a predetermined position by the lifting device 4. The foundation 3 is lowered into position using the lifting device 4.

[0033] Figures 4 to 8 show the assembly process of the lifting machine 1. As shown in Figure 4, the assembly process of the lifting machine 1 includes a leg arrangement process S1, a first beam attachment process S2, a lifting device attachment process S3, and a pillar extension process S4. The leg arrangement process S1, the first beam attachment process S2, the lifting device attachment process S3, and the pillar extension process S4 are performed in this order.

[0034] 5, the leg arranging step S1 is a step of arranging the legs 6. The pair of legs 6 are arranged with a predetermined interval (the interval corresponding to the length of the first beam 5 in the extension direction).

[0035] 6, the first beam attachment step S2 is a step of attaching the first beam 5 to the leg portion 6. As described above, the left and right ends of the first beam 5 are respectively connected to the left and right second beams 9 by pins P (see FIGS. 1 and 2) in a detachable manner.

[0036] 7, the lifting device installation step S3 is a step of installing the lifting device 4 to the first beam 5. Here, since the lifting device 4 is a heavy object, it is difficult to lift the lifting device 4 by hand. In this case, a lift device (not shown) may be used to lift the lifting device 4.

[0037] As shown in Fig. 8, the pillar extension step S4 is a step of extending the length of the pillar 10. If there is no need to extend the length of the pillar 10, the pillar extension step S4 can be omitted.

[0038] The lifting machine 1 is used on the platform 2, but when the lifting machine 1 is brought into the platform 2, there is no need to use a rail-road vehicle or the like from the tracks. The lifting machine 1 can be brought into the platform 2 in a disassembled state through a latch, and the lifting machine 1 can be assembled on the platform 2 for use.

[0039] Another embodiment of the present invention will be described below.

[0040] (1) In the above embodiment, the leg portion 6 is formed into a generally gate-like shape by the second beam 9 and the pair of support columns 10. However, the leg portion 6 may be formed into a shape other than a generally gate-like shape as long as it has the passage 11.

[0041] (2) In the above embodiment, the "member" according to the present invention is the foundation 3. However, the "member" according to the present invention is not limited to the foundation 3. In other words, the "member" according to the present invention may be a foundation other than the foundation 3, or a member other than a foundation. [Industrial Applicability]

[0042] The present invention can be used in a lifting machine. [Explanation of symbols]

[0043] 1 Lifting machine 2 Home 3 Foundation (components) 4 Lifting equipment 5 First beam 6. Feet 9 Second beam 10 Pillars 11 access

Claims

1. A lifting machine for installing a member, A lifting device for lifting the member; A first beam to which the lifting device is attached; A pair of legs supporting the first beam; The leg portion is A second beam extending in a direction intersecting the first beam in a plan view; A pair of columns supporting the second beam; A lifting machine having a passage formed between one pillar and the other pillar of the pair of pillars, through which the member can pass.

2. The second beam is provided across an upper end portion of the first support column and an upper end portion of the other support column, The lifting machine according to claim 1 , wherein the leg portion is formed into a substantially gate-like shape by the second beam and the pair of columns.

3. The lifting machine according to claim 1 or 2, wherein the support column is configured to be extendable and retractable.

4. The lifting machine according to claim 1 or 2, wherein the first beam is releasably connected to the second beam.

5. The lifting machine according to claim 1 or 2, wherein the second beam is releasably connected to the support column.

6. The lifting machine according to claim 1 or 2, wherein the member is a foundation for supporting a platform fence installed on a platform of a railway station.

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