Transport cart

Abstract

To provide a transport cart making it possible to readily adjust a position where a heavy good is installed.SOLUTION: A transport cart 6 of an intermediate support 8 includes a support base 61, plural wheels 62, plural jacks 64, and a stage structure 65. The plural wheels 62 are disposed on the undersurface of the support base 61. The plural jacks 64 are disposed on the top of the support base 61. The stage structure 65 is disposed above the support base 61 and borne by the support base 61 via the plural jacks 64. The stage structure 65 includes an attachment member 651 and a stage member 652. The attachment member 651 is attached to the plural jacks 64. The stage member 652 is slidable over the attachment member 651. A heavy good can be placed on the stage member. Each of the jacks 64 can adjust the position of the stage structure 65 relative to the support base 61 in vertical direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a transport cart suitable for adjusting the installation position of a heavy object. [Background technology]

[0002] Conventionally, there has been known an escalator transport cart that has multiple upright pillars on a mounting base on which the escalator truss is placed, and holding members for holding the truss are provided at the upper end of each pillar (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-000988 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, when attaching intermediate supports, which are structures that support the truss of an escalator, to the underside of the truss, the intermediate supports must be transported to a specific installation position where they will contact the underside of the truss. In this case, because the intermediate supports are heavy, it is possible to use the conventional escalator transport cart shown in Patent Document 1. However, with conventional escalator transport carts, it is necessary to adjust the position of the intermediate supports by gradually moving the transport cart while the intermediate supports are held on the installation base. For this reason, with conventional escalator transport carts, the task of installing the intermediate supports in specific installation positions is time-consuming.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a transport cart that can easily adjust the installation position of a heavy object. [Means for solving the problem]

[0006] The transport cart according to the present disclosure comprises a support base, a plurality of wheels provided on the underside of the support base, a plurality of jacks provided on the upper surface of the support base, and a stage structure disposed above the support base and supported by the support base via the plurality of jacks, the stage structure having mounting members attached to the plurality of jacks and a stage member provided on the upper portion of the mounting members so as to be slidable along the longitudinal direction of the support base and capable of carrying a heavy object, and each of the plurality of jacks is capable of adjusting the position of the stage structure relative to the support base in the vertical direction. The apparatus further includes an inclined rotation stage that is provided between the mounting member and the plurality of jacks and that can freely change the angle of the mounting member relative to each of the plurality of jacks and can fix the angle. There are. [Effects of the Invention]

[0007] According to the present disclosure, the installation position of a heavy object can be easily adjusted. [Brief explanation of the drawings]

[0008] [Figure 1] 10A and 10B are diagrams showing an example of use of a transport carriage of an intermediate support in the first embodiment. [Figure 2] 2A and 2B are diagrams illustrating an example of detailed configurations of a mounting member and a stage member in FIG. 1. [Figure 3] FIG. 3 is a diagram illustrating an example of the configuration of the tilting and rotating stage of FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 1 is a diagram showing an example of use of a transport cart 6 of an intermediate support 8 in the first embodiment. First, an overview of the escalator will be described with reference to FIG.

[0010] As shown in Figure 1, the escalator comprises a truss 1 and a plurality of steps 2. The truss 1 spans the upper and lower floors. Therefore, the inclined portion of the truss 1 is inclined at a certain angle.

[0011] Inside the truss 1, a machine room 5 is provided below the upper boarding / alighting door 4. A control device 7 is provided in the machine room 5. A drive sprocket 9 and the like are also provided in the machine room 5.

[0012] A driven sprocket 10 is provided inside the truss 1 below the lower boarding / alighting opening 3. A pair of endless chains 11 are also arranged inside the truss 1. The pair of endless chains 11 are stretched over the driving sprocket 9 and the driven sprocket 10.

[0013] Each chain 11 is fixed to both ends of a shaft 12 provided on each step 2 along the width direction of the step 2. Thus, each step 2 is connected endlessly via a pair of chains 11.

[0014] The drive sprocket 9 can be rotated in both directions via a reducer (not shown) by an electric motor (not shown) provided in the machine room 5. When the electric motor rotates the drive sprocket 9 in one direction, the steps 2 carrying the user move upward in a diagonally upward direction.

[0015] When the electric motor rotates the drive sprocket 9 in the other direction, the steps 2 carrying the user move downward in a diagonally downward direction. Thus, each step 2 can move up or down between the lower and upper floors in a staircase-like manner.

[0016] Next, the transport cart 6 that transports the intermediate support 8 that supports the truss 1 of the escalator will be described.

[0017] The transport cart 6 includes a support base 61 , a plurality of wheels 62 , a plurality of jacks 64 , and a stage structure 65 .

[0018] The support base 61 is a base on which a heavy object can be placed and has a rectangular shape.

[0019] A plurality of wheels 62 are provided on the underside of the support base 61. The plurality of wheels 62 are configured to be rotatable. A handle 70 is provided at the rear end of the upper surface of the support base 61. Therefore, when an operator pushes the transport cart 6 while holding the handle 70, the plurality of wheels 62 rotate.

[0020] Therefore, the worker can move the transport cart 6 easily.

[0021] The plurality of jacks 64 are provided on the upper surface of the support base 61. Each of the plurality of jacks 64 is configured to be able to house a rod 63. The rod 63 is provided perpendicular to the support base 61.

[0022] Each of the jacks 64 is made up of an air cylinder. Each of the jacks 64 is provided with a mechanism for adjusting the amount of air filled in the air cylinder (not shown). Each of the jacks 64 can extend the rod 63 in accordance with the amount of air filled in the air cylinder.

[0023] Therefore, the worker can operate each of the multiple jacks 64 individually by adjusting the amount of air filled into the air cylinders of the multiple jacks 64.

[0024] Therefore, each of the plurality of jacks 64 can individually adjust the position of the stage structure 65 relative to the support base 61 in one axial direction, that is, the up and down direction.

[0025] The stage structure 65 includes a mounting member 651 and a stage member 652 .

[0026] The mounting member 651 is attached to a plurality of jacks 64 .

[0027] The stage member 652 is slidably provided on the upper part of the mounting member 651. The stage member 652 is capable of supporting a heavy object.

[0028] The details of the configuration for sliding the stage member 652 relative to the mounting member 651 along the longitudinal direction of the support base 61 will be described later with reference to FIG.

[0029] A plurality of auxiliary jacks 69 are provided on the lower surface of the leading end of the stage member 652 in the direction in which it extends when slid relative to the mounting member 651 .

[0030] Each of the plurality of auxiliary jacks 69 is configured to be able to house an auxiliary rod 67. A base 68 is provided at the tip of each of the plurality of auxiliary rods 67. Each of the plurality of auxiliary jacks 69 is configured from an air cylinder.

[0031] Each of the auxiliary jacks 69 is provided with a mechanism for adjusting the amount of air filled in the air cylinder (not shown). Each of the auxiliary jacks 69 can extend the auxiliary rod 67 in accordance with the amount of air filled in the air cylinder.

[0032] Therefore, the worker can operate each of the plurality of auxiliary jacks 69 individually by adjusting the amount of air filled into the air cylinders of the plurality of auxiliary jacks 69.

[0033] Therefore, each of the plurality of auxiliary jacks 69 can individually adjust the position of the stage member 652 relative to the base 68 in one axial direction, that is, the up and down direction, integrally with the mounting member 651.

[0034] FIG. 2 is a diagram showing an example of the detailed configuration of the mounting member 651 and the stage member 652 in FIG.

[0035] The mounting member 651 is provided with a first mounting groove 651a and a second mounting groove 651b.

[0036] The first mounting groove 651a and the second mounting groove 651b each have a counterbore formed in the lower surface of the mounting member 651 by counterbore processing.

[0037] The stage member 652 is provided with a first stage groove 652a and a second stage groove 652b.

[0038] In each of the first stage groove 652a and the second stage groove 652b, a countersunk hole is formed by performing countersunk processing on the upper surface side of the stage member 652.

[0039] A plurality of first pins 665 are passed through the first mounting groove 651a with the through-holes of the first stage groove 652a aligned. A head is provided on both ends of each of the plurality of first pins 665, the head having a diameter equal to or larger than the diameter of the first pin 665 and smaller than the counterbore diameter of the counterbore holes of the first mounting groove 651a and the first stage groove 652a.

[0040] A plurality of second pins 666 are passed through with the through-portions of the second mounting groove 651b and the through-portions of the second stage groove 652b aligned. A head is provided on both ends of each of the plurality of second pins 666, and the head has a diameter equal to or larger than the diameter of the second pin 666 but is smaller than the counterbore diameter of the counterbore holes of the second mounting groove 651b and the second stage groove 652b.

[0041] This allows the stage member 652 to slide relative to the mounting member 651. Therefore, the stage member 652 is movable in one axial direction along the longitudinal direction of the support base 61 relative to the mounting member 651 within the range limited by the plurality of first pins 665 and the plurality of second pins 666.

[0042] Between the mounting member 651 and each of the jacks 64, an inclined rotation stage 667 is provided.

[0043] An inclined rotation stage 667 is also provided between the stage member 652 and each of the auxiliary jacks 69 .

[0044] Each tilting and rotating stage 667 is configured to achieve tilting along two axes. The tilting and rotating stage 667 will be described with reference to FIG.

[0045] FIG. 3 is a diagram showing an example of the configuration of the tilting and rotating stage 667 in FIG.

[0046] The tilt rotation stage 667 has a base stage 671 , an upper stage 672 , and a body portion 673 .

[0047] In the tilt rotation stage 667 provided on the mounting member 651 , the lower surface of the base stage 671 is attached to the tip of the jack 64 .

[0048] In the tilt rotation stage 667 provided on the stage member 652 , the lower surface of the base stage 671 is attached to the tip of the auxiliary jack 69 .

[0049] In the tilt rotation stage 667 provided on the mounting member 651, the upper surface of the upper stage 672 is attached to each of the four corners of the lower surface of the mounting member 651. The center of the upper stage 672 is the center of gravity, which is shown as the origin O in FIG.

[0050] In the tilt rotation stage 667 provided on the stage member 652, the upper surface of an upper stage 672 is attached to both ends of the tip of the lower surface of the stage member 652, respectively.

[0051] The lower surface of the body part 673 is attached to the upper surface of the base stage 671. The upper surface of the body part 673 is attached to the lower surface of the upper stage 672 via an inclined rotating part 674.

[0052] The body portion 673 is provided with a first clamp 701 and a second clamp 702 .

[0053] The inclined rotation unit 674 is configured to be rotatable about either a rotation axis centered on a first axis or a rotation axis centered on a second axis perpendicular to the first axis. The first axis of the inclined rotation unit 674 is an axis that passes through the origin O and is aligned with the central axis of the first clamp 701. The second axis of the inclined rotation unit 674 is an axis that passes through the origin O and is aligned with the central axis of the second clamp 702.

[0054] The first clamp 701 has a mechanism for fixing the angle of the inclined rotation unit 674 rotated about the first axis, and the second clamp 702 has a mechanism for fixing the angle of the inclined rotation unit 674 rotated about the second axis.

[0055] Therefore, the upper stage 672 can be tilted and rotated in the first adjustment direction A by tilting and rotating about a rotation axis with the origin O as the center of gravity and the first axis as the center.

[0056] Moreover, the upper stage 672 can be tilted and rotated in the second adjustment direction B by tilting and rotating about a rotation axis with the origin O as the center of gravity and the second axis as the center.

[0057] Therefore, the angle of the mounting member 651 relative to each of the plurality of jacks 64 can be freely changed. Furthermore, the angle of the mounting member 651 relative to each of the plurality of jacks 64 can be fixed at a desired angle.

[0058] In addition, the angle of the stage member 652 relative to each of the plurality of auxiliary jacks 69 can also be freely changed. Furthermore, the angle of the stage member 652 relative to each of the plurality of auxiliary jacks 69 can also be fixed at a desired angle.

[0059] Next, an example of use of the transport cart 6 supporting the intermediate support 8 will be described.

[0060] With the intermediate support 8 placed on the stage member 652, the worker moves the transport cart 6 to below the truss 1, thereby transporting the intermediate support 8.

[0061] Next, the installation location of the transport cart 6 is fine-tuned to match the mounting position of the intermediate support 8 on the truss 1. This fine adjustment can be performed by an operator grasping the handle 70 and moving forward to rotate the multiple wheels 62 and adjust the position of the transport cart 6.

[0062] Next, the worker adjusts the vertical distance between the intermediate support 8 and the truss 1 using the jacks 64 and the auxiliary jacks 69. In adjusting this vertical distance, the worker adjusts the height of each of the jacks 64 and the height of each of the auxiliary jacks 69 individually, thereby enabling fine adjustment of the position of the intermediate support 8 in accordance with the unevenness of the underside of the truss 1.

[0063] Also, the distance between the intermediate support 8 and the truss 1 in the front-to-rear direction along the longitudinal direction of the support base 61 is adjusted while sliding the stage member 652 relative to the mounting member 651 .

[0064] Through the above series of processes, the worker can adjust the position of the intermediate support 8 to the attachment position of the intermediate support 8 relative to the truss 1 by moving the transport cart 6. Next, the worker adjusts at least one of the jack 64, the auxiliary jack 69, and the stage member 652, and operates the first clamp 701 and the second clamp 702 to position the intermediate support 8. Thereafter, the worker can attach the intermediate support 8 to the truss 1 using bolts or the like.

[0065] As described above, in this embodiment 1, the stage structure 65 has an attachment member 651 attached to a plurality of jacks 64, and a stage member 652 that is arranged on the upper part of the attachment member 651 and is slidable along the longitudinal direction of the support base 61, and is capable of supporting heavy objects.

[0066] Furthermore, each of the plurality of jacks 64 is capable of adjusting the position of the stage structure 65 relative to the support base 61 in the vertical direction relative to the support base 61.

[0067] This allows the position of the intermediate support 8, which is a heavy load, to be finely adjusted in two axial directions: one axis in the vertical direction relative to the support base 61, and one axis along the longitudinal direction of the support base 61. Therefore, the intermediate support 8 can be easily installed.

[0068] Furthermore, the angle of the mounting member 651 relative to each of the plurality of jacks 64 can be freely changed.

[0069] This allows fine adjustment of the position of the intermediate support 8 in a total of four axial directions: one axial direction in the up-down direction relative to the support base 61, one axial direction along the longitudinal direction of the support base 61, and two axial directions of the inclined rotation portion 674. Therefore, the intermediate support 8 can be installed particularly easily.

[0070] In the first embodiment described above, an example has been described in which each of the jacks 64 and each of the auxiliary jacks 69 are configured from an air cylinder, but the present invention is not limited to this. For example, each of the jacks 64 and each of the auxiliary jacks 69 may be configured from a hydraulic cylinder. This allows heavier loads to be moved up and down.

[0071] Furthermore, in the above-described first embodiment, the intermediate support 8 attached to the truss 1 of the escalator is described as an example of a heavy object, but the heavy object is not limited to this. The same effect can be achieved with other heavy objects to which the installation position adjustment mechanism using the transport cart 6 according to the present disclosure can be applied.

[0072] Furthermore, in the above embodiment 1, an example in which multiple auxiliary jacks 69 are also adjusted is described, but it is also possible to adjust the height of the support base 61 by adjusting only multiple jacks 64 without adjusting the multiple auxiliary jacks 69.

[0073] The above describes in detail preferred embodiments, but the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims. [Explanation of symbols]

[0074] 1 truss, 2 steps, 3 lower boarding entrance, 4 upper boarding entrance, 5 machine room, 6 transport cart, 7 control device, 8 intermediate support, 9 drive sprocket, 10 driven sprocket, 11 chain, 12 shaft core, 14 drive rail, 16 driven rail, 61 support base, 62 wheels, 63 rod, 64 jack, 65 stage structure, 651 mounting member, 652 stage member, 67 auxiliary rod, 68 base, 69 auxiliary jack, 70 handle, 651a first mounting groove, 651b second mounting groove, 652a first stage groove, 652b second stage groove, 665 first pin, 666 second pin, 667 tilting and rotating stage, 671 base stage, 672 upper stage, 673 body, 674 Tilt rotation part, 701 first clamp, 702 second clamp, A first adjustment direction, B second adjustment direction, O origin.

Claims

1. A support base; A plurality of wheels provided on the underside of the support base; A plurality of jacks provided on the upper surface of the support base; a stage structure disposed above the support base and supported by the support base via the plurality of jacks; Equipped with the stage structure includes a mounting member attached to the plurality of jacks, and a stage member provided on an upper portion of the mounting member so as to be slidable along the longitudinal direction of the support base and capable of supporting a heavy object; each of the plurality of jacks is capable of adjusting the position of the stage structure relative to the support base in the vertical direction; The transport cart further includes an inclined rotation stage provided between the mounting member and the plurality of jacks, which can freely change the angle of the mounting member relative to each of the plurality of jacks and fix the angle.

2. an auxiliary jack provided on the underside of the stage member and located forward of the support base in the direction in which the stage structure extends; 2. The transporting cart according to claim 1, wherein the auxiliary jack, together with each of the plurality of jacks, is capable of adjusting the position of the stage structure relative to the support base in the vertical direction.

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