Stabilizing device for work gondolas

Abstract

To provide a low-cost steady rest device of work gondola capable of easily assembling while ensuring a high degree of freedom in installation on external walls in high-rise buildings such as super high-rise condominiums with no need to install large-scale equipment to arrange a series of temporary guide rails from the top floor to the lower floors.SOLUTION: Multiple support members 10 protruding outward from an external wall surface 3 of a building 2 are arranged in a vertical direction of the external wall surface 3, and a guide pole 11 is detachably attached to at least two support members 10. The attachment position of the guide pole 11 in the vertical direction with respect to the external wall surface 3 can be changed by changing the support member 10 for attaching the guide pole 11. The work gondola 4 is arranged so as to go up / down along a lifting wire 6 on the external wall surface 3, and a hook part 12 for connecting the work gondola 4 is attached to the guide pole 11.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vibration damping device in a working gondola.

Background Art

[0002] Conventionally, repair work in exterior wall construction such as repair, cleaning, and painting of the exterior wall surfaces of buildings such as buildings and condominiums has been carried out by workers boarding a working gondola that is provided so as to be able to move up and down by a support wire from above the building.

[0003] In such a working gondola, in the case where it is simply suspended and supported by a support wire from the rooftop, the working gondola shakes away from the exterior wall surface or shakes due to wind pressure, resulting in poor workability. In addition, there is also a problem that paints and the like used during work scatter downward from the gap between the separated exterior wall surface and the working gondola.

[0004] Therefore, as a method for preventing the shaking of the working gondola as described above, a temporary guide rail is fixed to the exterior wall surface with a mounting bracket, and a working gondola having a guide roller is provided on the temporary guide rail, thereby preventing the shaking of the working gondola and providing the working gondola so as to be able to move up and down along the exterior wall surface. A method is known (see Patent Document 1).

[0005] In recent years, high-rise buildings such as condominiums have also been constructed, and since it is necessary to perform maintenance on the exterior wall surfaces of these super high-rise buildings, this temporary guide rail is temporarily installed from the top floor to the lower floors to perform repair work.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, the aforementioned temporary guide rails are large-scale devices that involve installing long rails on the exterior wall surface. In particular, installing these temporary guide rails in a continuous line from the top floor to the lower floors of high-rise buildings such as skyscrapers requires a large number of rail components, and handling such large-scale devices on the upper floors is difficult.

[0008] Therefore, the present invention aims to provide a sway-preventing device for a work gondola that solves the aforementioned problems. [Means for solving the problem]

[0009] To solve the aforementioned problems, the invention described in claim 1 provides for the arrangement of a plurality of support members that protrude outward from the exterior wall surface of a building in the vertical direction of the exterior wall surface, For at least two support members Ga The side pole is attached in a detachable manner. The support member has an insertion portion through which the guide pole can be inserted so as to move vertically, A locking rod is provided protruding from the guide pole, and this locking rod is placed on the upper surface of the support member to hold the guide pole. The locking rod is capable of moving vertically within its interior, and has notches that open vertically in the insertion portion. The aforementioned By changing the support member to which the guide pole is attached, The aforementioned The vertical mounting position of the guide pole relative to the outer wall surface has been changed. On the aforementioned exterior wall surface, a work gondola is provided that can be raised and lowered along a lifting wire, The invention is characterized in that the hooking part connected to the aforementioned work gondola is attached to the guide pole.

[0010] The invention described in claim 2 is, Multiple support members are arranged in the vertical direction of the exterior wall surface of the building, projecting outward from the exterior wall surface. The guide pole is detachably attached to at least two support members. The guide pole is inserted through the insertion portion of the support member, and the guide pole is rotatable about its axis in the axial direction. A locking rod protruding from the guide pole is brought into contact with a projection protruding from the support member, thereby suppressing the rotation of the guide pole and maintaining its position. By changing the support member to which the guide pole is attached, the vertical mounting position of the guide pole relative to the outer wall surface can be changed. On the aforementioned exterior wall surface, a work gondola is provided that can be raised and lowered along a lifting wire, The hook that connects to the aforementioned work gondola is attached to the aforementioned guide pole. This is a defining characteristic.

[0011] The invention according to claim 3 is based on the invention described in claim 1 In the invention described, the guide pole is inserted into the insertion part of the support member, and the guide pole is provided so as to be rotatable about the axis in the axial direction of the guide pole. A locking bar protruding from the guide pole is brought into contact with a protruding part protruding from the support member to suppress the rotation of the guide pole and hold the position of the guide pole.

[0012] The invention according to claim 4 is based on the invention described in claim 1 or 2 or 3 In the invention described, the hook part is provided so as to be slidable in the vertical direction on the guide pole.

Advantages of the Invention

[0013] According to the present invention, a plurality of support members protruding outward from the outer wall surface of a building are arranged in the vertical direction of the outer wall surface, and the guide pole is detachably attached to at least two support members. By changing the support member to which the guide pole is attached, the vertical mounting position of the guide pole with respect to the outer wall surface is changed. A work gondola is provided on the outer wall surface so as to be able to move up and down along a lifting wire, and a hook part connected to the work gondola is attached to the guide pole. As a result, a large-scale device for installing a large number of temporary guide rails across all floors of a high-rise building is not required. By appropriately installing a guide pole, which is shorter than a temporary guide rail, while moving it with respect to the outer wall surface to be constructed, a vibration damping device for a work gondola that can be easily assembled, has a high degree of freedom in installation on the outer wall surface, and is inexpensive can be provided.

Brief Description of the Drawings

[0014] [Figure 1] A perspective view showing a state in which a vibration damping device in a work gondola, which shows an embodiment of the present invention, is installed on the outer wall surface of a building. [Figure 2] An enlarged perspective view of the vibration damping device in the work gondola of FIG. 1. [Figure 3]Perspective view showing a support member used in an embodiment of the present invention. [Figure 4] Perspective view showing a guide pole used in an embodiment of the present invention. [Figure 5] Perspective view showing a state where the guide pole is inserted through the support member of FIG. 3. [Figure 6] (a) shows a state where the guide pole is inserted through the upper support member, and (b) is a perspective view showing a state where the guide pole is installed on the upper end and the lower support member. [Figure 7] Perspective view showing a state where the hooking part is passed through the locking bar of the guide pole. [Figure 8] Perspective view showing a state where the hooking part of FIG. 7 abuts against the locking bar.

Mode for Carrying Out the Invention

[0015] The mode for carrying out the present invention will be described based on the embodiments shown in FIGS. 1 to 8.

[0016] FIG. 1 is a perspective view showing a state where the anti-sway device 1 in the working gondola of the present invention is installed on the outer wall surface 3 of the building 2, and FIG. 2 is an enlarged perspective view of a part of the anti-sway device 1 in the working gondola.

[0017] [[ID=X]] As shown in FIG. 1, in this anti-sway device 1 in the working gondola, when performing operations such as cleaning, repairing, and painting on the outer wall surface 3 of the building 2 with the working gondola 4, the working gondola 4 can move up and down at a certain interval with respect to the outer wall surface 3 without swaying left and right with respect to the outer wall surface 3 or moving away from the outer wall surface 3.

[0018] [[ID=Y]] Hereinafter, as shown in FIG. 1, the building side is defined as the inner side A, the opposite side as the outer side B, the upper floor side of the building as the upper side C, and the lower floor side as the lower side D. The X-X direction in FIG. 1 is the left-right direction, the Y-Y direction is the up-down direction, and the Z-Z direction is the front-back direction for explanation.

[0019] This work gondola 4 is suspended and supported by a lifting wire 6 that hangs down from a lifting wire support 7 installed on the roof of building 2, and is installed to be able to move up and down in the vertical direction (YY direction) on the nearly vertical exterior wall surface 3 of building 2.

[0020] By changing the installation position of the lifting wire support 7 on the rooftop in the left-right direction (XX direction), the suspension position of the work gondola 4, which is connected to and supported by the lifting wire 6 in a suspended state, can be moved in the left-right direction (XX direction) of the exterior wall surface 3.

[0021] Furthermore, as shown in Figures 1 and 2, the work gondola 4 has a pair of telescopic sections 8 with an extension function fixed to the upper and middle sections on both sides of the work gondola 4. The tip 8a of the telescopic section 8, which has a cushioning function, abuts against the outer wall surface 3, thereby preventing collision between the main body of the work gondola 4 and the outer wall surface 3. The extension function also allows the distance between the work gondola 4 and the outer wall surface 3 to be set to any desired width.

[0022] Furthermore, the lifting wire support 7 and the work gondola 4 are not limited to one unit; it is also possible to install multiple units and raise and lower them simultaneously for construction work.

[0023] A protective member 9 is installed around the movement area of ​​the aforementioned work gondola 4, and the protective member 9 consists of a support arm 9a, a suspension wire 9b, and a protective net 9c.

[0024] The support arm 9a protrudes by a predetermined amount from the outer wall surface 3 toward the outside B, and a support wire 9b is stretched between adjacent support arms 9a, 9a in the vertical and horizontal directions.

[0025] The support wire 9b is connected to the outer end B of the support arm 9a and the inner wall side A, and is stretched across the end and wall side of the other support arm 9a, which is opposite in the vertical and horizontal directions.

[0026] A protective net 9c is placed between the erection wires 9b, 9b on both sides B and XX and on the underside D of the work gondola 4, creating a protective space 9d that the work gondola 4 can move through, thereby preventing paint, cleaning solutions, and other substances generated from the work gondola 4 during construction from scattering outside the protective space 9d.

[0027] As shown in Figure 2, the anti-sway device 1 for the work gondola of the present invention consists of a support member 10 fixed to the outer wall surface 3, a guide pole 11 inserted through the support member 10, and a hook portion 12 attached to the guide pole 11.

[0028] Figure 3 is a perspective view showing the support member 10.

[0029] As shown in Figure 3, the support member 10 is composed of a cylindrical insertion portion 20, a fixing screw 21 made of a male thread welded to the side surface of the insertion portion 20, and a projection 22 that protrudes above the insertion portion 20.

[0030] The insertion portion 20 has a through hole 20a that extends in the vertical direction, and one side of the insertion portion 20 has a notch 20b that opens vertically.

[0031] On the side opposite to the notch 20b and the insertion portion 20, the fixing screw 21 is welded to the insertion portion 20, and the other end of the fixing screw 21 is screwed into an anchor 24 that has been pre-driven into the outer wall surface 3, thereby fixing the support member 10 to the outside B of the outer wall surface 3.

[0032] As shown in Figure 3, the projections 22 are provided in pairs on the left and right sides at the upper end of the insertion portion 20. The base portion 22a, which is the lower end of the bent projection 22, is welded to the side surface of the upper end of the insertion portion 20, and the locking piece 22b, which is the upper end of the projection 22, is fixed so as to be inclined toward the diameter expansion direction above the upper end of the insertion portion 20.

[0033] Due to the inclined shape of the projection 22, when the guide pole 11, which will be described later, is inserted into the through hole 20a from above, even if the insertion position is slightly off from the center of the through hole 20a, the lower end of the guide pole 11 will come into contact with the projection 22 and be guided in the direction of centering, making it easier to insert the guide pole 11 into the insertion part 20.

[0034] As shown in Figure 1, the support members 10 are installed in pairs on the left and right sides of the exterior wall surface 3 where the left and right ends of the work gondola 4, which is suspended and moves up and down, are located, and multiple support members 10 are arranged at predetermined intervals in the vertical direction (YY direction) of the exterior wall surface 3, with at least one installed on the exterior wall surface 3 of each floor of the building 2.

[0035] Furthermore, as shown in Figure 4, the guide pole 11 is a long cylindrical pipe in the vertical direction (YY direction) and has a length equivalent to at least the height of one floor of the building being constructed, but it may be set to a length equivalent to the height of multiple floors to suit construction efficiency.

[0036] Furthermore, locking rods 25, which are screw-shaped and have heads 25a, are provided projecting outward from the sides of the guide pole 11 in the same direction from the upper and lower ends.

[0037] Figure 5 is a perspective view showing the guide pole 11 inserted into the support member 10, and Figure 6 is a perspective view showing the guide pole 11 attached to the support member 10.

[0038] As shown in Figure 5, the outer diameter of the guide pole 11 is set to be smaller than the inner diameter of the through hole 20a of the insertion portion 20, so that the end of the guide pole 11 can be inserted into the through hole 20a from above and below, and the EE axis of the guide pole 11 is inserted into the through hole 20a so that it can rotate around its axis which is the axial axis.

[0039] Furthermore, by aligning the protruding direction of the locking rod 25, which is attached to the side of the guide pole 11, with the opening direction of the notch 20b of the support member 10, and passing the locking rod 25 through the notch 20b from above and below, the guide pole 11 can move through the insertion portion 20.

[0040] Then, as shown in Figure 6(a), the guide pole 11, having passed through one support member 10 (hereinafter also referred to as the upper support member), is inserted into another support member 10 located below it (hereinafter also referred to as the lower support member). The locking rod 25 is then rotated around the EE axis so that it is positioned on the inside A of the building 2 from the projection 22 of the insertion portion 20. Then, as shown in Figure 6(b), the locking rod 25 is moved from the projection 22 to the inside A of the building 2 and placed on the upper surface of the insertion portion 20, thereby holding the guide pole 11 in place without it falling out of the support member 10 and attaching it to the outer wall surface 3.

[0041] With the above structure, the guide pole 11 is detachably attached to at least two support members 10, 10 on the upper and lower sides, and the guide pole 11 can be easily removed from the support members 10 by operating in the reverse procedure of the installation procedure.

[0042] Furthermore, by sliding the removed guide pole 11 downwards, using the lower support member 10 as the upper support member 10, and using another support member 10 located below the upper support member 10 as the lower support member 10, the mounting position of the guide pole 11 with respect to the outer wall surface 3 can be changed.

[0043] Furthermore, even if the guide pole 11 rotates unintentionally in the axial direction of the EE axis, the locking rod 25 protruding from the guide pole 11 abuts against the protrusion 22, suppressing rotation outward B, thereby preventing the locking rod 25 from moving towards the notch 20b and preventing the guide pole 11 from falling off.

[0044] A hook portion 12 is attached to the guide pole 11. Figure 7 is a perspective view showing the attachment and vertical sliding state of the hook portion 12, while Figure 8 is a perspective view showing the state of being locked to the locking rod 25.

[0045] As shown in Figure 7, the hook portion 12 is an annular member formed by connecting a large-diameter portion 12a and a small-diameter portion 12b in a series. The inner diameter of the large-diameter portion 12a is larger than the outer diameter of the guide pole 11, and the inner diameter of the small-diameter portion 12b in the longitudinal direction is formed in a semi-oval shape that is longer than the protruding length of the locking rod 25.

[0046] Due to the shape of the annular member of the hook portion 12, the hook portion 12 can be attached to the guide pole 11 so that it can slide vertically (YY direction) while surrounding the outer circumference of the guide pole 11 with the large diameter portion 12a. When the hook portion 12 comes into contact with the locking rod 25, the semi-oval small diameter portion 12b is positioned in line with the protruding direction of the locking rod 25, and the locking rod 25 is inserted into the small diameter portion 12b, thereby allowing the hook portion 12 to move along the entire length of the guide pole 11.

[0047] Furthermore, as shown in Figure 2, the small-diameter portion 12b is connected to the holding wire 14 of the winch 13, which serves as the biasing means 15. When the winch 13 mounted on the work gondola 4 is wound up, the work gondola 4 connected to the hook portion 12 is biased toward the outer wall surface 3 (inward direction A) so as to be pulled toward the guide pole 11.

[0048] As shown in Figure 8, the vertical movement of the hook portion 12 is suppressed by its relative position with respect to the locking rod 25 that protrudes from the guide pole 11. Even if the hook portion 12 slides up and down on the guide pole 11, the hook portion 12 comes into contact with the locking rod 25, which rotates in the protruding direction from Figure 7 to Figure 8 during installation, preventing the hook portion 12 from coming out of the guide pole 11.

[0049] Furthermore, if the guide pole 11 were to detach from the support member 10, the hook portion 12 would come into contact with the locking rod 25, preventing the guide pole 11 from being pulled out of the hook portion 12. The guide pole 11 would then be supported by the winch 13 connected to the hook portion 12 and would not fall downward.

[0050] Next, we will explain the work method using the anti-sway device 1 in the work gondola. First, a worker boards a work gondola 4, drives anchors 24 into predetermined positions on the exterior wall surface 3 of the building 2, and installs the support member 10 by screwing fixing screws 21 into these anchors 24.

[0051] Next, the guide pole 11 is positioned at the top of the exterior wall surface 3 of the floor to be constructed, and as shown in Figure 5, the guide pole 11 is inserted from above into the through hole 20a of the insertion portion 20 in the support member 10, while aligning the locking rod 25 on the lower end of the guide pole 11 with the opening direction of the notch 20b in the upper support member 10.

[0052] Then, as shown in Figure 6(a), after attaching the hook portion 12 to the guide pole 11 that has passed through the upper support member 10, as shown in Figure 6(b), the guide pole 11 is rotated around the EE axis, the locking rod 25 is positioned further inward A of the building 2 than the projection 22 and placed on the upper surface of the support member 10, and the lower end of the guide pole 11 is inserted into the lower support member 10.

[0053] Next, the length of the telescopic section 8 attached to the work gondola 4 is adjusted, and the work gondola 4 is raised and lowered while contacting the outer wall surface 3 via the telescopic section 8 to move it to the construction surface. Then, as shown in Figure 2, the winch 13 to which the hook section 12 is connected is wound up, biasing the work gondola 4 toward the outer wall surface 3. The telescopic section 8 receives this biasing force, creating tension between the work gondola 4 and the guide pole 11. This ensures that the work gondola 4 is held stably against the outer wall surface 3 without swaying, even when buffeted by strong winds.

[0054] The worker raises and lowers the work gondola 4 while performing the above operation along the entire length of the guide pole 11 to carry out the work on the target floor, and then lowers the guide pole 11 to the next floor in order to carry out the work on the next floor.

[0055] Specifically, the tension of the winch 13 on the work gondola 4 is released to relieve the tension between it and the guide pole 11, then the guide pole 11 is lifted slightly upward, and the locking rod 25 is rotated towards the outside B of the building 2 with the EE axis as its axis, moving it to the top of the notch 20b.

[0056] Then, while passing the locking rod 25 through the notch 20b, the lower end of the guide pole 11 reaches the support member 10 on the lower floor, and then, in the same manner as above, the guide pole 11 is attached to the insertion part 20, and that floor We will carry out the construction.

[0057] With the above configuration, the anti-sway device 1 for a work gondola of the present invention provides a simple and inexpensive anti-sway device for a work gondola 4 by appropriately installing short guide poles 11 on the exterior wall surface 3 where construction is to be carried out, without having to install a large number of temporary guide rails across all floors of a high-rise building.

[0058] Furthermore, since this device can be installed precisely on the exterior wall surface 3, construction can be carried out on the minimum necessary work area.

[0059] Furthermore, by providing the support member 10 with the projection 22 as described above, in this embodiment, the guide pole 11 is guided in the centripetal direction by the projection 22 when attaching and detaching the guide pole 11, which is a frequently performed task, and the insertion of the guide pole 11 into the support member 10 on the lower floor can be performed efficiently. In addition, the projection 22 also serves as a locking function to suppress the rotation of the locking rod 25 of the guide pole 11, thereby simplifying the component structure while improving work operability.

[0060] Furthermore, since the attachment and detachment function of the guide pole 11 is achieved solely by rotating the guide pole 11, the attachment and detachment operation can be easily performed by an operator from inside the work gondola 4, thus preventing accidental operation.

[0061] Furthermore, since the guide pole 11 can be moved to another floor linearly in the vertical direction (YY direction) while its upper or lower end is always inserted into either the upper or lower support member 10, the guide pole 11 will never completely detach from the support member 10, thus preventing the guide pole 11 from falling during relocation.

[0062] Furthermore, the hook portion 12 not only generates a biasing force on the guide pole 11, but since the hook portion 12 is positioned to contact the locking rod 25 provided on the guide pole 11, even if the guide pole 11 were to detach from the support member 10, the locking rod 25 would catch on the hook portion 12, and the guide pole 11 would be suspended by the holding wire 14, preventing it from falling.

[0063] Furthermore, even if the work gondola 4 rises or falls beyond the intended amount, the hook portion 12 engages with the upper and lower support members 10, 10 and is pulled by the holding wire 14, thereby preventing it from moving out of its intended position.

[0064] Therefore, the hooking section 12 also serves multiple functions, providing biasing force to the guide pole 11, preventing it from falling, and preventing the work gondola 4 from moving out of bounds, thus simplifying and streamlining the device. [Explanation of Symbols]

[0065] 1. Stabilizing device for work gondolas 2 buildings 3. Exterior wall surface 4. Work gondola 6. Lifting wire 10 Support member 11 Guide poles 12 Hook part 20 Insertion part 20b Notch 22 Protrusion 25 Locking rod

Claims

1. Multiple support members are arranged in the vertical direction of the exterior wall surface of the building, projecting outward from the exterior wall surface. Guide poles are detachably attached to at least two support members. The support member has an insertion portion through which the guide pole can be inserted so as to move vertically, A locking rod is provided protruding from the guide pole, and this locking rod is placed on the upper surface of the support member to hold the guide pole. The locking rod is capable of moving vertically within its interior, and has notches that open vertically in the insertion portion. By changing the support member to which the guide pole is attached, the vertical mounting position of the guide pole relative to the outer wall surface can be changed. On the aforementioned exterior wall surface, a work gondola is provided that can be raised and lowered along a lifting wire, A sway-preventing device for a work gondola, characterized in that a hook portion connected to the work gondola is attached to the guide pole.

2. Multiple support members are arranged in the vertical direction of the exterior wall surface of the building, projecting outward from the exterior wall surface. Guide poles are detachably attached to at least two support members. The guide pole is inserted through the insertion portion of the support member, and the guide pole is rotatable about its axis in the axial direction. A locking rod protruding from the guide pole is brought into contact with a projection protruding from the support member, thereby suppressing the rotation of the guide pole and maintaining its position. By changing the support member to which the guide pole is attached, the vertical mounting position of the guide pole relative to the outer wall surface can be changed. On the aforementioned exterior wall surface, a work gondola is provided that can be raised and lowered along a lifting wire, A sway-preventing device for a work gondola, characterized in that a hook portion connected to the work gondola is attached to the guide pole.

3. The guide pole is inserted through the insertion portion of the support member, and the guide pole is rotatable about its axis in the axial direction. The anti-sway device for a work gondola according to claim 1, characterized in that a locking rod protruding from the guide pole is brought into contact with a projection protruding from the support member, thereby suppressing the rotation of the guide pole and maintaining the position of the guide pole.

4. The anti-sway device for a work gondola according to claim 1, 2, or 3, characterized in that the hook portion is provided on the guide pole so as to be slidable in the vertical direction.

Images