Roof material replacement method and trolley
A trolley-based method for replacing roofing materials addresses the challenge of limited space by using a wire-laying trolley to cut, remove, and attach new materials, ensuring safe and efficient roof repairs without scaffolding.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- MITSUBISHI HEAVY IND LTD
- Filing Date
- 2024-11-08
- Publication Date
- 2026-05-20
AI Technical Summary
Existing methods for replacing roof materials, such as slate, require securing a space for scaffolding or stay ropes, which can be difficult when space is limited.
A roof material replacement method using a trolley equipped with mechanisms for cutting, removing, and attaching roofing materials, allowing replacement without scaffolding by laying a wire across the roof and moving the trolley along it to perform these tasks.
Enables safe and efficient replacement of roofing materials without the need for scaffolding, facilitating operations in spaces where traditional support structures cannot be set up.
Smart Images
Figure 2026083769000001_ABST
Abstract
Description
Technical Field
[0004] ,
[0006] , , , , , ,
[0005] , , ,
[0003] , , , , , ,
[0001] The present disclosure relates to a roof material replacement method and a trolley.
Background Art
[0002] When repairing an aging slate roof of a factory, warehouse, etc., in order to ensure the safety of workers, a structure is known in which a scaffold is provided on the roof or a stay rope is provided on the structure of the building (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above configuration, it is necessary to secure a space for laying a scaffold, a stay rope, etc., and it becomes difficult to realize when such a space cannot be secured.
[0005] The present disclosure has been made in view of the above, and an object thereof is to provide a roof material replacement method and a trolley capable of replacing a roof material without providing a scaffold.
Means for Solving the Problems
[0006] The roof material replacement method according to this disclosure includes a wire laying step of laying a wire above the portion of the roof to be replaced so as to cross the portion to be replaced; a removal step of mounting a removal mechanism capable of removing the roof material of the portion to be replaced from the roof on a trolley that can travel along the wire, placing the trolley with the removal mechanism on the roof, moving the trolley along the wire to the portion to be replaced, and removing the roof material of the portion to be replaced using the removal mechanism; and an attachment step of mounting an attachment mechanism capable of attaching a new roof material to the portion to be replaced on the trolley, placing the trolley with the attachment mechanism on the roof, moving the trolley along the wire to an opening formed in the portion to be replaced by the removal of the roof material, and attaching a new roof material using the attachment mechanism so as to cover the opening.
[0007] The trolley according to this disclosure is a trolley used for replacing roofing materials that constitute a roof, and comprises a running section that can travel along a wire, a removal mechanism that can remove the roofing material of the portion of the roof to be replaced from the roof, and a main body that can at least detachly attach a mounting mechanism that can attach the new roofing material to the portion to be replaced. [Effects of the Invention]
[0008] According to this disclosure, a method for replacing roofing materials and a trolley that can replace roofing materials without the need to erect scaffolding can be provided. [Brief explanation of the drawing]
[0009] [Figure 1] Figure 1 is a flowchart showing an example of a roof material replacement method according to the embodiment. [Figure 2] Figure 2 is a schematic perspective view showing an example of a trolley used in the embodiment. [Figure 3] Figure 3 is a schematic diagram illustrating an example of the work involved in the wire laying process. [Figure 4] Figure 4 is a schematic diagram illustrating an example of the work involved in the cutting and removal processes. [Figure 5] Figure 5 is a schematic diagram illustrating an example of the work involved in the cutting and removal processes. [Figure 6] Figure 6 is a schematic diagram illustrating an example of a removal mechanism. [Figure 7] Figure 7 is a schematic diagram illustrating an example of the work involved in the removal process. [Figure 8] Figure 8 shows an example of a mounting mechanism. [Figure 9] Figure 9 is a schematic diagram illustrating an example of the installation process. [Figure 10A] Figure 10A shows an example of the arrangement of the first roofing material. [Figure 10B] Figure 10B shows an example of the arrangement of the first roofing material. [Figure 11] Figure 11 is a schematic diagram illustrating an example of the installation process. [Figure 12] Figure 12 is a schematic diagram illustrating an example of the installation process. [Figure 13] Figure 13 schematically shows another example of the second roofing material drive unit. [Figure 14] Figure 14 is a schematic diagram showing another example of the second roofing material drive unit. [Modes for carrying out the invention]
[0010] The following describes embodiments of the roof material replacement method, trolley, and roof structure according to this disclosure, based on the drawings. However, this embodiment does not limit the present invention. In the following embodiments, if there are multiple configuration examples, the elements of each configuration example can be combined as appropriate. Furthermore, the components in the following embodiments include those that are easily substituted or substantially identical to those that are easily substituted by a person skilled in the art.
[0011] FIG. 1 is a flowchart showing an example of a roof material replacement method according to the present embodiment. As shown in FIG. 1, the roof material replacement method according to the present embodiment includes a wire laying step S10, a cutting step S20, a removal step S30, a detachment step S40, an attachment step S50, and a wire removal step S60.
[0012] In the roof material replacement method according to the present embodiment, a cart equipped with various mechanisms for performing the roof material replacement work is placed at a target portion on the roof, and the work is performed by the various mechanisms mounted on the cart. Therefore, the operator can perform each work without climbing onto the roof.
[0013] FIG. 2 is a perspective view schematically showing an example of the cart 100 used in the present embodiment. As shown in FIG. 2, the cart 100 includes a main body portion 10 and a traveling portion 20.
[0014] The main body portion 10 is detachable of the mechanisms for performing the roof material replacement work. The main body portion 10 has a frame 11. The frame 11 has a base member 11a disposed at a position corresponding to, for example, the side of a rectangular parallelepiped, and a beam member 11b bridged between adjacent base members 11a. The frame 11 is formed using a metal material such as aluminum, for example.
[0015] Examples of the various mechanisms used for the roof material replacement work that are detachable to the main body portion 10 include various mechanisms such as a cutting and removal mechanism 30, a detachment mechanism 40, an attachment mechanism 50, a lifting mechanism 60, and the like. The various mechanisms are configured to operate by being powered by a power source such as a wire, air, an electric motor, or the like. Details of the various mechanisms will be described later in conjunction with the description of each step. In the example shown in FIG. 1, an example of the attachment positions of the various mechanisms is shown. Note that the various mechanisms are not limited to the attachment positions shown in FIG. 1 and may be attached to other positions.
[0016] The running section 20 is provided on the main body 10. The running section 20 has wheels 21 positioned at the four corners of the lower surface of the frame 11, for example. By rotating the four wheels 21, it is possible to run along a wire, which will be described later. When slate is used as the roofing material, each wheel 21 can rotate along the grooves of the slate.
[0017] The wire laying process S10 involves laying a wire above the portion of the roof to be replaced, so as to cross that portion. Figure 3 is a schematic diagram showing an example of the work performed in the wire laying process S10. As shown in Figure 3, in the wire laying process S10, first, work vehicles 81 and 82, such as aerial work platforms or cranes, are positioned on both sides of the roof 70. Winches are installed on the work vehicles 81 and 82, and one end of the wire W is pre-attached to the winch of one of the work vehicles 81. At work vehicle 81, the other end of the wire W is grasped by an aircraft 83 such as a drone, and the aircraft 83 is flown to the other work vehicle 82. At the other work vehicle 82, the wire W is fixed to a trolley 100, and the other end of the wire W is attached to the lifting section of the work vehicle 82. Then, the aircraft 83 lifts the wire W, and while raising the lifting section 82a of the other work vehicle 82, the winch of work vehicle 81 winds the wire W around it, thereby applying tension to the wire W, and positioning the trolley 100 on the roof 70. In this way, in the wire laying process S10, the wire W is laid along the slope direction of the roof 70. Hereafter, the direction in which the wire W extends may be referred to as the wire laying direction D1. When lowering the trolley 100 from the roof 70, the aircraft 83 lifts the wire W, and while lowering the lifting section 82a of the other work vehicle 82, the winch of work vehicle 81 is used to unwind the wire W.
[0018] The cutting step S20 cuts the fixing portion 73 of the roofing material 72 of the target portion 71 of the roof 70 to be replaced, which is used to fix the roofing material 72. The fixing portion 73 is the part of the roofing material 72 that includes the fixing member 73a. The fixing member 73a fixes the roofing material 72 to the beam portion 75 of the roof 70. Examples of fixing members 73a include hook bolts. The removal step S30 removes the cut portion that was cut in the cutting step S20. In this embodiment, the cutting step S20 and the removal step S30 can be performed in a series of operations. A detailed explanation follows below.
[0019] Figures 4 and 5 schematically show an example of the work content of the cutting process S20 and the removal process S30. When performing the cutting process S20 and the removal process S30, a cutting and removal mechanism 30 for cutting and removing the fixed portion 73 is pre-mounted on the trolley 100. Then, as shown in Figure 4, the trolley 100 is moved to a position corresponding to the fixed portion 73 of the target portion 71.
[0020] The cutting and removal mechanism 30 includes a base 31, a hole saw 32, an air chuck 33, and a drive unit 34. The base 31 is attached to the frame 11 of the trolley 100. The base 31 supports the hole saw 32, the air chuck 33, and the drive unit 34. The hole saw 32 is annular and rotatable about a central axis AX. The hole saw 32 has a blade portion 32a positioned downwards. When the hole saw 32 is rotated about the central axis AX, the blade portion 32a can cut the fixed portion 73. The air chuck 33 can grip the fixed member 73a protruding from the upper part of the fixed portion 73. The hole saw 32 and the air chuck 33 are movable vertically by the drive unit 34.
[0021] In the cutting process S20, as shown in Figure 5, the position of the trolley 100 is adjusted to position the cutting and removal mechanism 30 above the fixed portion 73 (ST21). From this state, the air chuck 33 is lowered to grip the fixed member 73a protruding from the upper surface of the fixed portion 73 (ST22). Then, by lowering the hole saw 32 while rotating it, the blade portion 32a cuts the fixed portion 73 from the other parts (ST23).
[0022] In the removal process S30, after cutting the fixed portion 73, the hole saw 32 and the air chuck 33 are raised while the fixed member 73a is held in place by the air chuck 33, as shown in Figure 5. The rising of the hole saw 32 and the air chuck 33 lifts the cut fixed portion 73 (ST31). This removes the fixed portion 73. With the removal of the fixed portion 73, an opening 76 is formed in that location.
[0023] After the removal process S30 is performed, the trolley 100 is lowered from the roof 70 and the removed fixing part 73 is recovered. Then, the cutting and removal mechanism 30 is removed from the trolley 100 and the removal mechanism 40 to be used in the next process is attached to the trolley 100. After that, the trolley 100 is placed back on the roof 70.
[0024] The removal process S40 involves removing the roofing material 72 from the target section 71. Specifically, in the removal process S40, the removal mechanism 40 is mounted on the trolley 100, the trolley 100 is placed on the roof 70, the trolley 100 is moved along the wire W to the target section 71, and the roofing material 72 from the target section 71 is removed using the removal mechanism 40.
[0025] Figure 6 is a schematic diagram showing an example of the removal mechanism 40. The removal mechanism 40 includes a rod member 41, an opening / closing hook 42, and a hook drive unit 43. The rod member 41 is attached to the frame 11 of the trolley 100. The opening / closing hook 42 is positioned at the lower end of the rod member 41. The opening / closing hook 42 is formed so that when closed it is smaller than the diameter of the opening 76, and when open it is larger than the diameter of the opening 76. The opening / closing hook 42 is provided with a four-bar linkage mechanism in the opening direction. The hook drive unit 43 raises and lowers the opening / closing hook 42.
[0026] Figure 7 is a schematic diagram illustrating an example of the work performed in the removal process S40. In the removal process S40, as shown in Figure 7, the position of the trolley 100 is adjusted to position the opening / closing hook 42 of the removal mechanism 40 above the opening 76 (ST41). From this state, the opening / closing hook 42 is lowered by the hook drive unit 43 and inserted into the opening 76. It receives force from the inner circumference of the opening 76, deforms, and is inserted in a closed state (ST42). When the opening / closing hook 42 is positioned below the roofing material 72, the four-bar linkage mechanism opens the opening / closing hook 42 and locks it to the roofing material 72 (ST43). From this state, the opening / closing hook 42 is moved upward, lifting the lower end of the roofing material 72 upward. Subsequently, the trolley 100 is moved diagonally downward, releasing the lock at the upper end of the roofing material 72, and the roofing material 72 is removed.
[0027] After the removal process S40 is performed, the trolley 100 is lowered from the roof 70 and the removed roofing material 72 is recovered. Then, the removal mechanism 40 is removed from the trolley 100 and the mounting mechanism 50 to be used in the next process is attached to the trolley 100. After that, the trolley 100 is placed back on the roof 70.
[0028] Installation process S50 involves installing new roofing material 77. Specifically, the installation mechanism 50 is mounted on the trolley 100, the trolley 100 is placed on the roof 70, the trolley 100 is moved along the wire W to the opening 76, and the new roofing material 77 is installed using the installation mechanism 50 to cover the opening 76. In this embodiment, the new roofing material 77 consists of a first roofing material 77A and a second roofing material 77B. The first roofing material 77A and the second roofing material 77B have similar dimensions, for example, in the longitudinal direction (wire laying direction D1). The second roofing material 77B has a smaller width dimension D2 than the first roofing material 77A.
[0029] The first roofing material 77A is pre-attached with a hook bolt 77f, an angle adjustment wire 77w, and an index plunger 77p. The angle adjustment wire 77w is left hooked onto the index plunger 77p, which is positioned on the upper surface of the roofing material 77.
[0030] Figure 8 shows an example of the mounting mechanism 50. As shown in Figure 8, the mounting mechanism 50 has a first roof material drive unit 51. The first roof material drive unit 51 has a base unit 53 and a wire drive unit 54. The base unit 53 is provided with pulleys 53a and 53b on which the angle adjustment wire 77w is hung, and a wire fixing unit 53c for fixing one end of the angle adjustment wire 77w. The other end of the angle adjustment wire 77w is connected to the wire drive unit 54, which unwinds and rewinds the angle adjustment wire 77w. The wire drive unit 54 and the pulley 53a are supported. By driving the angle adjustment wire 77w, the angle of the first roof material 77A, which is supported on the trolley 100, is adjusted. The second roof material drive unit 52 supports the rear end of the second roof material 77B and can push the second roof material 77B forward.
[0031] Figure 9 is a schematic diagram showing an example of the installation process S50. As shown in Figure 9, the trolley 100 that will be placed on the roof 70 is fitted with the installation mechanism 50 and the first roof material 77A. The rear end of the first roof material 77A is supported by the rear and lower part of the frame 11. The angle adjustment wire 77w is attached to the first roof material drive unit 51. In this state, the trolley 100 is moved to the opening 76. When approaching the opening 76, the angle adjustment wire 77w is loosened and the trolley 100 is moved forward with the front end of the first roof material 77A facing diagonally downward (ST51). When moving the trolley 100 forward, the loosened angle adjustment wire 77w is pulled so that the hook bolt 77f exceeds the beam 75. Next, the trolley 100 is advanced until the front end of the first roofing material 77A contacts the beam portion 75 located in front of the lower side of the opening 76. This inserts the front end (upper end) of the first roofing material 77A under the existing roofing material 74 (ST52). From this state, the trolley 100 is moved backward, causing the hook bolt 77f of the first roofing material 77A to lock into the beam portion 75. Then, the angle adjustment wire 77w is pulled to detach it from the index plunger 77p, and the trolley 100 is moved backward, causing the first roofing material 77A to drop from the trolley 100 towards the roof 70, so that the first roofing material 77A is positioned to cover a portion of the opening 76 (ST53).
[0032] After performing the installation process S50 once, the trolley 100 is lowered from the roof 70 and the new roofing material 77 is mounted onto the trolley 100. Then, the trolley 100 is placed back on the roof 70 and the first roofing material 77A is placed in the same manner as described above.
[0033] Figures 10A and 10B show an example of the arrangement of the first roofing material 77A. As shown in Figures 10A and 10B, in the installation process S50, the first roofing material 77A is arranged with both ends of the opening portion 76 in the width direction D2 left open. The width direction D2 is the direction along the roof 70 and is perpendicular to the wire laying direction D1. Adjacent first roofing materials 77A may be arranged to overlap in the width direction D2, as shown in Figure 10A, or they may be arranged with a gap in the width direction D2, as shown in Figure 10B.
[0034] Figures 11 and 12 schematically show an example of the installation process S50. As shown in Figure 11, after installing the first roofing material 77A, a second roofing material 77B is placed so as to cover the gap 76a in the width direction D2 between the first roofing material 77A and the existing roofing material 74, with a smaller width direction D2 dimension than the first roofing material 77A. The method for installing the second roofing material 77B will be described below.
[0035] As shown in Figure 12, after installing the required number of the first roofing material 77A, the trolley 100 is lowered from the roof 70, and the lifting mechanism 60 for lifting the roofing material 74 at the upper end of the opening 76, and the newly placed second roofing material 77B are mounted on the trolley 100. The lifting mechanism 60 has a claw portion 61 at its lower end. The lifting mechanism 60 is attached to the front end face of the trolley 100.
[0036] The second roofing material 77B is attached to the second roofing material drive unit 52 of the mounting mechanism 50. In this case, the rear end of the second roofing material 77B is supported by the support unit 55. Alternatively, the second roofing material 77B may have an angle adjustment wire 77w and an index plunger 77p attached to it in advance, similar to the first roofing material 77A, and the angle adjustment wire 77w may be hooked onto the index plunger 77p located on the upper surface of the roofing material 77. In this case, the inclination angle of the second roofing material 77B can be adjusted using the first roofing material drive unit 51. The second roofing material drive unit 52 can cause the second roofing material 77B to protrude from below the claw portion 61 of the lifting mechanism 60 toward the front of the trolley 100.
[0037] The trolley 100 is placed on the roof 70 and moved to the gap 76a (ST61). In the gap 76a, the claw portion 61 of the lifting mechanism 60 attached to the front end face of the trolley 100 is inserted under the roof material 74 in front of the gap 76a and lifted upward. As a result the roof material 74 is lifted, and a gap 75a is formed between the roof material 74 and the beam portion 75 (ST62).
[0038] Then, the second roofing material drive unit 52 moves the support unit 55 forward, pushing the second roofing material 77B forward and causing the second roofing material 77B to protrude from the underside of the claw unit 61 in front of the trolley 100. As a result, the front end of the second roofing material 77B is inserted into the gap 75a (ST63). Subsequently, the lifting mechanism 60 returns the claw unit 61 downward and moves the trolley 100 backward. As a result, the second roofing material 77B is positioned so that its front end is sandwiched between the roofing material 74 and the beam unit 75, and the second roofing material 77B covers the gap 76a.
[0039] In the wire removal process S60, the aircraft 83 lifts the wire W, and while the lifting section 82a of the other work vehicle 82 is lowered, the wire W is paid out by the winch of work vehicle 81. This lowers the trolley 100 to the ground. After that, the end of the wire W is detached from the lifting section 82a of work vehicle 82, and the wire W is removed by winding it up with the winch of work vehicle 81.
[0040] As described above, the roof material replacement method according to this embodiment includes a wire laying step S10 in which a wire W is laid above the target portion 71 of the roof 70 to be replaced so as to cross the target portion 71; a removal step S40 in which a removal mechanism 40 capable of removing the roof material 77 of the target portion 71 from the roof 70 is mounted on a trolley 100 that can travel along the wire W, the trolley 100 with the removal mechanism 40 is placed on the roof 70, the trolley 100 is moved along the wire W to the target portion 71, and the roof material 77 of the target portion 71 is removed using the removal mechanism 40; and an attachment step S50 in which an attachment mechanism 50 capable of attaching a new roof material 77 to the target portion 71 is mounted on the trolley 100, the trolley 100 with the attachment mechanism 50 is placed on the roof 70, the trolley 100 is moved along the wire W to an opening 76 formed in the target portion 71 by the removal of the roof material 77, and the new roof material 77 is attached using the attachment mechanism 50 so as to cover the opening 76.
[0041] According to this configuration, a wire W is laid across the target portion 71 of the roof 70, and a trolley 100 equipped with a removal mechanism 40 and an attachment mechanism 50 is placed on the roof 70 to move along the wire W. The removal mechanism 40 and attachment mechanism 50 mounted on the trolley 100 can be used to replace the roofing material 72 of the target portion 71 with new roofing material 77. As a result, workers do not need to climb onto the roof 70, and the roofing material 72 can be replaced without the need to erect scaffolding.
[0042] In the roof material replacement method according to this embodiment, the removal step S40 includes removing the roof material 72 of the target portion 71, lowering the trolley 100 from the roof 70, and recovering the removed roof material 72.
[0043] With this configuration, the removed roofing material 72 can be recovered before the installation process S50 can be performed, allowing the work to be carried out efficiently using the trolley 100.
[0044] In the roof material replacement method according to this embodiment, the roof material 72 is fixed using a fixing member 73a, and after the wire laying process S10 and before the removal process S40, a cutting process S20 is performed to cut the fixing portion 73 of the roof material 72 of the target portion 71, including the fixing member 73a that fixes the roof material 72, and a removal process S30 is performed to remove the cut portion cut in the cutting process S20. The cutting process S20 and the removal process S30 are performed by placing a trolley 100 equipped with a cutting and removal mechanism 30 capable of cutting and removing the fixing portion 73 on the target portion 71 and using the cutting and removal mechanism 30 mounted on the trolley 100.
[0045] With this configuration, the removal of the roofing material 72 can be easily performed by removing the fixing portion 73 that secures the roofing material 72 in advance before carrying out the removal process S40.
[0046] In the roof material replacement method according to this embodiment, the installation step S50 involves installing one or more first roof material 77A and one or more second roof material 77B, which have a smaller width D2 dimension than the first roof material 77A, as new roof material 77 in the width direction D2 along the roof 70 and perpendicular to the wire laying direction D1, to the opening 76. The first roof material 77A is positioned so as to leave a gap portion 76a between it and the edge of the opening 76 or other first roof material 77 in the width direction D2, and the second roof material 77B is positioned to cover the gap portion 76a after the first roof material 77 has been placed.
[0047] With this configuration, the gap portion 76a can be covered more reliably and without gaps by covering it with the second roofing material 77B.
[0048] In the roof material replacement method according to this embodiment, when placing the second roof material 77B in the gap portion 76a, the lower end of the roof material 74, which is positioned diagonally above the gap portion 76a, is lifted relative to the beam portion 75, and the upper end of the second roof material 77B is inserted between the lifted lower end of the roof material 74 and the beam portion 75.
[0049] This allows the upper end of the second roofing material 77B to be sandwiched between the lower end of the roofing material 74 and the beam portion 75. Therefore, displacement of the second roofing material 77B can be suppressed.
[0050] In the roof material replacement method according to this embodiment, the roof 70 is arranged at an inclination with respect to the horizontal plane, and in the wire laying process S10, wires W are laid along the direction of inclination of the roof 70, and in the installation process S50, the new roof material 77 is positioned such that the upper end of the new roof material 77 is inserted under the roof material 74 at the higher end of the opening 76, and the lower end of the new roof material 77 is placed on top of the roof material 74 at the lower end of the opening 76.
[0051] This makes it possible to properly form a configuration that can suppress water leakage between the roofing material 74 and the new roofing material 77.
[0052] The trolley according to this embodiment is a trolley 100 used for replacing roofing material 72 that constitutes a roof 70, and comprises a main body 10 to which at least a removal mechanism 40 that can remove the roofing material 72 of the target portion 71 of the roof 70 from the roof 70 and an attachment mechanism 50 that can attach a new roofing material 77 to the target portion 71 can be attached, and a running section 20 provided on the main body 10 that can run along a wire W.
[0053] With this configuration, the removal mechanism 40 and the mounting mechanism 50 necessary for replacing the roofing material can be attached to and detached from the main body 10. Therefore, the mechanism can be replaced as needed and mounted on the main body 10, and the roofing material replacement work can be carried out using the trolley 100.
[0054] In the trolley according to this embodiment, the main body 10 is equipped with a cutting and removal mechanism 30 that can cut and remove a fixed portion 73 of the roof material 72 of the target portion 71, including a fixed member 73a that fixes the roof material 72.
[0055] With this configuration, the cutting and removal mechanism 30 necessary for replacing the roofing material can be attached to and detached from the main body 10. Therefore, the mechanism can be replaced as needed and mounted on the main body 10, while the roofing material replacement work is performed using the trolley 100.
[0056] The technical scope of the present invention is not limited to the embodiments described above, and modifications can be made as appropriate without departing from the spirit of the invention. For example, in the above embodiments, a configuration was described in which the second roofing material drive unit 52 pushes the second roofing material 77B forward and inserts it into the gap 75a by moving the support unit 55 forward, but the configuration for moving the second roofing material 77B is not limited to this configuration.
[0057] Figure 13 is a schematic diagram showing another example of the second roofing material drive unit. As shown in Figure 13, the second roofing material drive unit 52A may be an indirect link mechanism using a motor. The second roofing material drive unit 52A includes a first arm 56A, a second arm 56B, a third arm 56C, a first joint 57A, a second joint 57B, a first motor 58A, and a second motor 58B. The first arm 56A, second arm 56B, third arm 56C, first joint 57A, and second joint 57B are provided in pairs with a gap in the width direction D2.
[0058] The first arm 56A is rotatably connected to the frame 11. The second arm 56B is connected to the first arm 56A via a first joint 57A. The first joints 57A on both sides in the width direction D2 are connected by a first connecting member 59A. The third arm 56C is rotatably connected to the second arm 56B via a second joint 57B. The second joints 57B on both sides in the width direction D2 are connected by a second connecting member 59B. The first connecting member 59A is rotatable by a first motor 58A. The second connecting member 59B is rotatable by a second motor 58B.
[0059] By adjusting the rotation of the first motor 58A and the second motor 58B, the posture of the first arm 56A, the second arm 56B, and the third arm 56C can be adjusted. By adjusting the posture of the first arm 56A, the second arm 56B, and the third arm 56C, the front-to-back position and tilt angle of the second roofing material 77B held by the third arm 56C can be adjusted.
[0060] Figure 14 schematically shows another example of the second roofing material drive unit. As shown in Figure 14, instead of the claw portion 61 of the lifting mechanism 60, a lifting mechanism 60B may be provided that lifts the roofing material 74 in conjunction with the second roofing material drive unit 52B. The configuration of the second roofing material drive unit 52B is the same as that shown in Figure 13. In the example shown in Figure 14, the plate-shaped insertion portion 62 of the lifting mechanism 60B is pushed forward by the drive unit 63 and, after being inserted into the roofing material 74, moves upward, thereby enabling the roofing material 74 to be lifted. The second roofing material drive unit 52B also works in conjunction with the lifting mechanism 60B to push the second roofing material 77B forward when the insertion portion 62 of the lifting mechanism 60B has moved upward and lifted the roofing material 74. The lifting mechanism 60B also works in conjunction with the lifting mechanism 60B to pull out the second roofing material 77B from the roofing material 74 when it is inserted below the roofing material 74. In this way, by linking the lifting mechanism 60B and the second roofing material drive unit 52B, the second roofing material 77B can be efficiently inserted below the roofing material 74.
[0061] Furthermore, the second roof material drive unit is not limited to the above configuration, and may also be configured to perform position and angle adjustment by appropriately combining other mechanisms such as a pantograph mechanism or a parallel link mechanism. [Explanation of Symbols]
[0062] 10 Main body 11 frames 11a Base member 11b Beam member 20. Running section 21 wheels 30 Cutting removal mechanism 31 Base 32 Hole saw 32a Blade 33 Air Chuck 34,63 Drive unit 40 mechanism 41 Rod member 42 Opening and closing hooks 43 Hook drive unit 50 Mounting mechanism 51 First roof material drive unit 52, 52A, 52B Second roof material drive unit 55 Support part 56A First Arm 56B Second Arm 56C Third Arm 57A First joint 57B Second joint 58A First Motor 58B Second Motor 59A First connecting member 59B Second connecting member 60, 60B Lifting Mechanism 61 Nail area 62 Insertion section 70 Roof 71 Target portion 72, 74, 77 Roofing materials 73 Fixed part 73a Fixing member 75 Beam section 75a Gap 76 Opening part 76a Gap 77,77A First roofing material 77B Second roofing material 77f Hook Bolt 77p Index plunger 77W Angle Adjustment Wire 81, 82 Work vehicles 82a Lifting section 83 flying objects 100 carts AX center axis D1 Wire laying direction D2 width direction S10 Wire laying process S20 cutting process S30 removal process S40 process S50 Installation Process S60 Wire removal process W wire
Claims
1. A wire laying process involves laying a wire above the section of the roof to be replaced, so as to cross the section in question. A removal process comprising: mounting a removal mechanism that allows the roofing material of the target portion to be removed from the roof on a trolley that can travel along the wire; placing the trolley with the removal mechanism on the roof; moving the trolley along the wire to the target portion; and removing the roofing material of the target portion using the removal mechanism; The installation process involves mounting an attachment mechanism on the trolley that is capable of attaching new roofing material to the target portion, placing the trolley with the attachment mechanism on the roof, moving the trolley along the wire to the opening formed when the roofing material is removed from the target portion, and using the attachment mechanism to attach the new roofing material so as to cover the opening. Roofing material replacement methods, including those mentioned.
2. The removal process includes removing the roofing material from the target portion, lowering the trolley from the roof, and recovering the removed roofing material. The method for replacing roofing material according to claim 1.
3. The roofing material is fixed using a fixing member. After the wire laying step and before the removal step, a cutting step is performed to cut the fixing portion of the roofing material of the target portion, including the fixing member that fixes the roofing material. A removal step to remove the cut portion that was cut in the cutting step. Perform The cutting step and the removal step are performed by placing a trolley equipped with a cutting mechanism for cutting the fixed portion and a removal mechanism for removing the cut fixed portion on the target portion, and using the cutting mechanism and the removal mechanism mounted on the trolley, respectively. The method for replacing roofing material according to claim 1.
4. The aforementioned mounting process is, With respect to the opening, one or more first roofing materials and one or more second roofing materials having a smaller dimension in the width direction than the first roofing material are attached in the width direction that is parallel to the roof and perpendicular to the direction in which the wire extends. The first roofing material is arranged such that a gap is left between it and the edge of the opening or between it and other first roofing materials in the width direction. The second roofing material is positioned after the first roofing material has been placed, so as to cover the gap. The method for replacing roofing material according to claim 1.
5. When the second roofing material is placed in the gap, the lower end of the roofing material, which is positioned diagonally above the gap, is lifted relative to the beam, and the upper end of the second roofing material is inserted between the lifted lower end of the roofing material and the beam. The method for replacing roofing material according to claim 4.
6. The aforementioned roof is positioned at an angle to the horizontal plane, In the wire laying process, the wire is laid along the direction of the roof's slope. In the installation process, the new roofing material is positioned such that, for the higher end of the opening, the upper end of the new roofing material is inserted beneath the existing roofing material, and for the lower end of the opening, the lower end of the new roofing material is placed on top of the existing roofing material. The method for replacing roofing material according to claim 1.
7. A trolley used for replacing roofing materials that make up a roof, A main body that can at least detach a removal mechanism for removing the roofing material from the portion of the roof to be replaced, and an attachment mechanism for attaching a new roofing material to the portion to be replaced, A running section provided on the main body, which is capable of running along the wire, A trolley equipped with a trolley.
8. The main body is equipped with a cutting and removal mechanism that can cut and remove the fixing portion of the roofing material in the target area, including the fixing member that secures the roofing material. The trolley according to claim 7.