Work gondola device and gondola temporary fixing device

Abstract

To provide a work gondola device having a lifting ladder that can be easily attached to various gondola bodies with different heights from their bottom plates of intermediate crosspieces.SOLUTION: A work gondola device of the present invention ascends and descends along an exterior wall surface of a building and comprises a gondola body 1A on which workers ride and boarding steps 9 installed on a building side 6 of the gondola body 1A. The boarding steps 9 comprise two vertical frames 10, treads 11A and 11B spanning between the vertical frames 10, an upper locking tool 12 for locking the two vertical frames 10 to an upper crosspiece 4 of the gondola body 1A, an intermediate locking tool 13 for locking the two vertical frames 10 to an intermediate crosspiece 5 of the gondola body 1A, a deck section 14 positioned above the upper locking tool 12, with its base rotatably attached to both vertical frames, and the intermediate locking tool 13 is movable along the vertical frames 10 in accordance with the height of the intermediate crosspiece 5.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a gondola device for work and a gondola temporary fixing device used for repair work on the outer wall of high-rise buildings and cleaning work such as window wiping.

Background Art

[0002] A gondola is a type of working scaffold and may also be used for repair work and cleaning work on high-rise buildings, as well as bridge construction work. A gondola is usually suspended from the roof by a wire rope and performs work such as repair work and cleaning work on the outer wall while being lifted and lowered electrically.

[0003] In work using a gondola, it is necessary for a worker to board the gondola from a balcony or veranda (hereinafter simply referred to as "veranda") of a building, or conversely, to transfer from the gondola to the veranda of the building. Such boarding and alighting from the gondola needs to be done safely and quickly.

[0004] Patent Document 1 describes a gondola tap device including a tread board that can protrude horizontally from the gondola, a ladder that can be leaned against the tip edge of the tread board from the veranda of a building, and a connecting structure that connects and fixes the ladder and the tread board.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The gondola for work usually has a form in which columns are erected at least at the four corners of a rectangular bottom plate, an upper crossbar is installed between the columns, and an intermediate crossbar is installed below the upper crossbar. In Patent Document 1, a pair of columns are fixed to the upper crossbar and the intermediate crossbar of the gondola, and one end of a tread board is rotatably attached to these columns (see FIG. 3). When in use, the tread board is rotated to a horizontal position so that movement can be made between the veranda of the building and the gondola via the tread board.

[0007] However, since the gondola has a narrow width (the length in the direction perpendicular to the outer wall surface of the building) of about 412 to 643 mm, getting on and off the gondola is likely to be dangerous. Especially, it is more dangerous under the situation where the gondola sways due to strong wind or the like. Therefore, there is a demand for the development of a work gondola device that allows safe boarding and alighting from the gondola.

[0008] An object of the present invention is to provide a work gondola device and a gondola temporary fixing device that enhance the safety when boarding and alighting from the gondola.

Means for Solving the Problems

[0009] The work gondola device of the present invention for solving the above problems is one that moves up and down along the outer wall surface of a building, and includes a gondola body on which a worker rides, and a boarding and alighting step installed on the building side of the gondola body. The gondola body includes a bottom plate for a worker to stand and work on, columns erected at least at the four corners of the bottom plate, an upper crossbar installed between the columns, an intermediate crossbar installed between the columns at a position below the upper crossbar, and is provided with. The boarding and alighting step includes two vertical frames, a tread step installed between these vertical frames, an upper locking tool for locking the two vertical frames to the upper crossbar, an intermediate locking tool for locking the two vertical frames to the intermediate crossbar, It is located above the upper locking device, the base is rotatably attached to both vertical frames, and is rotatable between a horizontal posture located between the gondola body and the building and a vertical posture along the vertical frame. A deck part, Comprising, The intermediate locking device is movable along the vertical frame according to the height of the intermediate horizontal bar.

[0010] Another gondola device for work of the present invention includes a gondola body on which an operator rides and a gondola fence installed on the side of the gondola body opposite to the building side. The gondola body, A bottom plate for an operator to stand and work on, Columns erected at least at the four corners of the bottom plate, An upper horizontal bar erected between the columns, An intermediate horizontal bar erected between the columns at a position below the upper horizontal bar, Comprising. The gondola fence consists of a lower part and an upper part connected to each other. The lower part is located below the upper horizontal bar and includes two vertical frames, an upper locking device for locking the vertical frames to the upper horizontal bar, and an intermediate locking device for locking the vertical frames to the intermediate horizontal bar. The upper part is located above the upper horizontal bar and includes a U-shaped or C-shaped frame member and a lattice or mesh member erected in the space within the frame member. The intermediate locking device is movable along the vertical frame according to the height of the intermediate horizontal bar.

[0011] Still another gondola device for work of the present invention includes the gondola body, the boarding and alighting step, and the gondola fence. The boarding and alighting step is installed on the building side of the gondola body, and the gondola fence is installed on the side of the gondola body opposite to the building side facing the boarding and alighting step.

[0012] The gondola temporary fixing device of the present invention is for temporarily fixing the gondola body at a predetermined interval with respect to the handrail of a balcony or veranda of a building. A strip-shaped plate material having a bent portion at one end, A slide member slidably mounted on the plate member along the longitudinal direction of the plate member; A fixing member for fixing the slide member at a predetermined position of the plate member; It is attached to the slide member and includes a contact plate portion hanging downward. The plate member is bridged between the upper surface of the handrail of the balcony or veranda and the upper surface of the upper horizontal bar located on the building side of the gondola body. The contact plate portion is brought into contact with one of the handrail and the upper horizontal bar, and the bent portion is locked to one of the handrail and the upper horizontal bar, so as to sandwich from both sides while maintaining the interval between the handrail and the upper horizontal bar at a predetermined length.

Advantages of the Invention

[0013] According to the gondola device of the present invention, since an embarkation / disembarkation step is provided inside the gondola body and a deck portion can be bridged between the gondola body and the handrail of the building, the movement between the gondola body and the building becomes easy and safe. Further, since the intermediate locking tool for locking the embarkation / disembarkation step to the intermediate horizontal bar is movable along the vertical frame according to the height of the intermediate horizontal bar, it is possible to easily correspond to various gondola bodies with different heights of the intermediate horizontal bar by preparing only one embarkation / disembarkation step.

[0014] According to another gondola device of the present invention, safety can be enhanced by installing a gondola fence on the side of the gondola body opposite to the building side. Moreover, since the gondola fence is provided with an intermediate locking tool movable along the vertical frame according to the height of the intermediate horizontal bar, similar to the embarkation / disembarkation step, it is possible to correspond to various gondola bodies with different heights of the intermediate horizontal bar by preparing only one gondola fence. In particular, when the gondola fence is installed on the side of the gondola body opposite to the building side facing the embarkation / disembarkation step, the safety during the transfer from the embarkation / disembarkation step to the gondola body is improved.

[0015] According to the gondola temporary fixing device of the present invention, the gondola body can be easily temporarily fixed at a desired interval with respect to the railing of a balcony or veranda (hereinafter simply referred to as a veranda) of a building. That is, since the gondola body is only suspended by a wire rope from above, when an operator grabs and pulls the railing of the veranda from inside the gondola body, the gondola body easily approaches the railing side, but when the hand is released, the gondola body escapes outward like a swing. The distance to the railing can be freely controlled so as not to let it escape. Therefore, the movement from the veranda to the gondola body or vice versa can be performed safely without shaking. In addition, if the gondola temporary fixing device of the present invention is used, it becomes easy to install the boarding and alighting steps.

Brief Description of the Drawings

[0016]

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Embodiments for Carrying Out the Invention

[0017] Hereinafter, a work gondola device according to an embodiment of the present invention will be described. FIGS. 1(a) to (c) are schematic side views showing various gondola main bodies 1A, 1B, and 1C. The gondola main bodies 1A, 1B, and 1C all include a bottom plate 2, columns 3 erected at at least the four corners of the bottom plate 2, an upper crossbar 4 installed between the columns 3, 3, and an intermediate crossbar 5 installed between the columns 3, 3 at a position below the upper crossbar 4. Here, the gondola main bodies 1A, 1B, and 1C have different heights of the upper horizontal bars 4 and the intermediate horizontal bars 5 from the bottom plate 2. In FIGS. 1(a) to (c), as an example, the intervals between the upper horizontal bar 4 and the intermediate horizontal bar 5 are shown numerically (mm), and the intervals vary in the range of 550 mm to 300 mm. Such dimensional differences are based on differences in the usage conditions, usage locations, usage purposes, etc. of the gondola device. For the upper horizontal bar 4 and the intermediate horizontal bar 5, for example, square or rectangular section angle pipes can be used.

[0018] FIG. 2 shows the usage state of the working gondola device using the gondola main body 1A shown in FIG. 1(a). The gondola main body 1A is suspended from the roof of the building 6 by a wire rope (not shown) and is configured to be electrically lifted and lowered. In FIG. 2, the gondola main body 1A is stopped in front of the veranda 7 of the building 6, and it shows the state where the worker W climbs the ladder 8 from the veranda 7 and gets into the gondola main body 1A through the boarding and alighting steps 9 installed on the building 6 side of the gondola main body 1A. A deck portion 14 spanning between the gondola main body 1A and the veranda railing 19 of the building 6 is attached to the boarding and alighting steps 9. Further, on the side of the boarding and alighting steps 9 opposite to the building 6 side of the gondola main body 1A having the boarding and alighting handrail portion 15 at the upper part, a gondola fence 24 is installed to ensure the safety when the worker W gets into the gondola main body 1A from the veranda 7. Details of the gondola fence 24 will be described later.

[0019] <Boarding and alighting steps 9> As shown in FIGS. 3, 4(a), (b), and 5, the boarding and alighting steps 9 include two parallel vertical frames 10, 10, upper treads 11A, intermediate treads 11B, and lower treads 11C installed between these vertical frames 10, 10, an upper locking tool 12 for locking the two vertical frames 10, 10 to the upper horizontal bar 4 of the gondola main body 1A, an intermediate locking tool 13 for locking the two vertical frames 10, 10 to the intermediate horizontal bar 5 of the gondola main body 1A, and a deck portion 14 located above the upper locking tool 12 and having a base rotatably attached to both vertical frames 10, 10.

[0020] Furthermore, the boarding and alighting step 9 has a handrail portion 15 for boarding and alighting (hereinafter sometimes simply abbreviated as the handrail portion 15) that extends upward from each vertical frame 10. The handrail portion 15 may be integrally formed with the vertical frame 10, or may be connected and fixed to the upper end of the vertical frame 10, and may further be detachable from the vertical frame 10. Also, the deck portion 14 may be attached to the base of the handrail portion 15. As shown in FIG. 4(a), the handrail portion 15 is bent in a U-shape toward the building 6 side at the upper part, and the lower end portion on the building 6 side is bent toward the upper locking tool 12. Thereby, when the gondola main body 1A descends, the lower tip of the handrail portion 15 hits the concrete balcony handrail 19 of the building 6, and the risk of the gondola main body 1A tilting backward can be avoided.

[0021] The deck portion 14 is located above the upper locking tool 12, and the base is rotatably attached to both vertical frames 10, 10 by a rotation shaft 18, and can rotate between a horizontal posture and a vertical posture between the gondola main body 1A and the building 6 as shown by an arrow D in FIG. 4(a). As shown in FIG. 4(b), the deck portion 14 is supported on the upper horizontal bar 4 via the upper locking tool 12 in the horizontal posture. FIG. 5 shows a state where the deck portion 14 is rotated upward to a vertical posture. FIG. 5 is a rear view showing the boarding and alighting step 9 as viewed from the building side of FIG. 3. The vertical posture of the deck portion 14 is beneficial when the gondola main body 1A is lifted and lowered, or when the boarding and alighting step 9 is transferred or stored.

[0022] As shown in FIG. 4(a), the upper locking tool 12 has a groove-shaped member 12a with a U-shaped cross section. The groove-shaped member 12a has substantially the same length as the upper tread step 11A and is attached over substantially the entire length of the upper tread step 11A installed between the vertical frames 10, 10. The upper locking tool 12 is attached to the surface of the upper tread step 11A on the building 6 side by welding or the like with the groove portion facing downward. A reinforcing member 111A for supporting the upper tread step 11A and attaching a fixing tool 16 described later is attached to the lower part of the upper tread step 11A by welding, bolting, or the like. The upper tread step 11A and the reinforcing member 111A are formed of, for example, square pipes or the like. In use, as shown in Fig. 4(b), the groove member 12a of the upper locking device 12 is mounted on the upper horizontal bar 4 made of a square pipe or the like. Note that an L-shaped member may be used instead of the groove member 12a.

[0023] As shown in Fig. 4(b), the boarding and alighting step 9 has a fixture 16 for fixing the upper locking device 12 to the upper horizontal bar 4. Fig. 7 is a side view showing the use state of the fixture 16, and Fig. 8 is a plan view of the fixture 16. As shown in Figs. 7 and 8, the fixture 16 includes an arm 161 with one end attached to the boarding and alighting step 9 and the other end located below the upper horizontal bar 4, and a contact portion 164 attached to the other end of the arm 161. Specifically, the fixture 16 includes an L-shaped cross-section arm 161, an L-shaped plate member 162 fixed to the side surface of the upper tread step 11A by welding or the like and having one end of the arm 161 rotatably attached in the horizontal direction, an arm support member 163 fixed to the lower surface of the upper tread step 11A by welding or the like and facing the L-shaped plate member 162 so as to sandwich the arm 161 between the L-shaped plate member 162, and a contact portion 164 attached to the other end of the arm 161 and movably attached in the vertical direction so as to contact the lower end surface of the upper horizontal bar 4. The structure of the arm support member 163 is shown in detail in Figs. 8 and 9(b).

[0024] In order to rotatably attach one end of the arm 161 to the L-shaped plate member 162, a bolt 165 passes through one end of the L-shaped plate member 162 and the arm 161 and is screwed with a nut 166. Thereby, the other end of the arm 161 can be rotated in the horizontal direction about one end of the arm 161. As shown in Fig. 7, the contact portion 164 attached to the other end of the arm 161 is attached to the upper end of a screw shaft 167, and the screw shaft 167 is screwed with a nut 168 attached to the lower part of the arm 161. A handle 169 is attached to the lower end of the screw shaft 167. Thereby, by operating the handle 169, the contact portion 164 can be moved up and down, and the contact portion 164 is configured to contact the lower surface of the upper horizontal bar 4 in a state where the groove member 12a is mounted on the upper horizontal bar 4.

[0025] The procedure for fixing the boarding and alighting step 9 to the upper cross bar 4 of the gondola body 1A using the fixture 16 will be described below. Before fixing, as shown in FIG. 9, the arm 161 is in a state of being stored in the lower part of the upper tread step 11A. In this state, as shown in FIG. 7, the groove member 12a of the upper locking tool 12 attached to the upper tread step 11A is attached to the upper cross bar 4 from above. Next, the arm 161 is rotated horizontally about the bolt 165 and positioned below the upper cross bar 4 (the state shown in FIG. 10). In this state, the handle 169 is rotated to raise the contact portion 164 and bring it into contact with the lower surface of the upper cross bar 4. Thereby, it is possible to prevent the boarding and alighting step 9 from coming off the upper cross bar 4 of the gondola body 1A due to vertical shaking or the like, and the safety is enhanced.

[0026] Returning to FIGS. 3 to 5, the intermediate locking tool 13 locks the two vertical frames 10, 10 to the intermediate cross bar 5. The intermediate locking tool 13 is disposed on each of the two vertical frames 10, 10, and includes a fixing portion 131 that is slidable up and down along each vertical frame 10 and can be fixed at an arbitrary position, and a groove member 132 having a U-shaped cross section that is attached to the fixing portion 131 and mounted on the intermediate cross bar 5 (see FIGS. 4(a) and (b)). The fixing portion 131 is slidably attached along the vertical frame 10 between the intermediate tread step 11B and the lower tread step 11C (the sliding direction is indicated by arrow E). In order to make the intermediate locking tool 13 slidable, a slide support frame 20 is disposed in parallel with the vertical frame 10 so as to form a gap 21 at the side portion of the vertical frame 10 between the intermediate tread step 11B and the lower tread step 11C. The slide support frame 20 may have both ends attached to the intermediate tread step 11B and the lower tread step 11C respectively, or both ends may be attached to the vertical frame 10 by a connecting tool (not shown). The slide support frame 20 may be installed on either the outer or inner side portion of the vertical frame 10.

[0027] The intermediate locking device 13 is shown in FIGS. 6(a) to 6(c). FIGS. 6(a) to 6(c) are a front view, a side view, and a plan view showing the intermediate locking device 13, respectively. The fastening portion 131 includes a bolt 131a (a split bolt) and a nut-integrated handle 131b. The tip of the bolt 131a is fixed to the side surface of the groove-shaped member 132 by welding or the like. The bolt 131a passes through the gap 21 formed between the above-described vertical frame 10 and the slide support frame 20 and protrudes outward. The nut-integrated handle 131b is screwed onto the protruding bolt 131a. When the nut-integrated handle 131b is not tightened, the bolt 131a can slide within the gap 21, so that the groove-shaped member 132 at the tip of the bolt 131a can be fitted onto the intermediate horizontal bar 5 from above. In this state, when the nut-integrated handle 131b is tightened, the nut-integrated handle 131b strongly abuts against the surfaces of the vertical frame 10 and the slide support frame 20, and the intermediate locking device 13 can be fixed.

[0028] As described above, the intermediate locking devices 13 are arranged on each of the two vertical frames 10, 10 and are not provided over the entire length of the intermediate horizontal bar 5. Thus, even when intermediate struts (not shown) are provided between the struts 3 in addition to the struts 3 at the four corners of the gondola body 1A, the boarding and alighting steps 9 can be installed without being obstructed by the intermediate struts. In the case of the gondola bodies 1A, 1B, 1C that do not have intermediate struts, intermediate locking devices 13 having the entire length of the intermediate horizontal bar 5 or a length close thereto may be used.

[0029] As described above, the intermediate locking device 13 is slidably attached along the vertical frame 10, so that the height can be adjusted according to the height of the intermediate horizontal bar 5. Therefore, the gondola device of the present invention can easily, quickly, and surely attach the boarding and alighting steps 9 to various gondola bodies 1A, 1B, 1C (see FIGS. 1(a) to 1(c)) in which the height of the intermediate horizontal bar 5, in other words, the distance between the upper horizontal bar 4 and the intermediate horizontal bar 5 is different.

[0030] The usage method of the gondola device of this embodiment will be described. First, the gondola main body 1A suspended by a wire rope (not shown) is raised or lowered and stopped in front of the balcony 7 of the building 6. In this state, as shown in FIG. 2, a ladder 8 is placed on the balcony railing 19. On the other hand, the upper locking tool 12 of the boarding / alighting step 9 inside the gondola main body 1A is locked onto the upper horizontal bar 4 at a position facing the ladder 8. Next, the height of the intermediate locking tool 13 is adjusted to lock the groove-shaped member 132 onto the intermediate horizontal bar 5, and the nut-embedded handle 131b screwed onto the bolt 131a is tightened to fix the intermediate locking tool 13 to the intermediate horizontal bar 5. Also, as shown in FIGS. 7 to 10, the arm 161 of the fixture 16 is rotated from below the upper tread step 11A until it is below the upper horizontal bar 4, and the screw shaft 167 is screwed in to bring the contact portion 164 into contact with the upper horizontal bar 4. After that, the deck portion 14 is rotated toward the balcony railing 19 to make it horizontal. Note that the attachment of the boarding / alighting step 9 to the gondola main body 1A may be performed in advance prior to the raising or lowering of the gondola main body 1A.

[0031] In this way, the attachment of the boarding / alighting step 9 inside the gondola main body 1A is completed. When the worker W gets into the gondola main body 1A, the worker W climbs the ladder 8 from the balcony 7, holds onto the railing portion 15, and passes through the deck portion 14 to get into the gondola main body 1A using the boarding / alighting step 9 of the gondola main body 1A. When the worker W moves from the gondola main body 1A to the balcony 7, in the reverse procedure, the worker W may descend the ladder 8 through the deck portion 14 from the boarding / alighting step 9.

[0032] <Gondola fence 24> As shown in FIG. 2, the gondola device according to this embodiment includes a gondola main body 1A, a boarding / alighting step 9 installed on the building 6 side of the gondola main body 1A, and a gondola fence 24 installed on the side of the gondola main body 1A opposite to the building 6 side.

[0033] That is, since the gondola main body 1A is usually narrow with a width of about 412 to 643 mm, when the worker W stands on the deck portion 14 with the building 6 behind him / her, there is a possibility that the bottom plate 2 (i.e., the floor) of the gondola main body 1A cannot be seen. Therefore, when the gondola sways due to strong wind or the like, boarding the gondola main body 1A is likely to be dangerous. On the other hand, as in this embodiment, when the gondola fence 24 is installed at a position facing the boarding and alighting step 9, the safety during the transfer from the veranda 7 to the gondola main body 1A is improved. Therefore, the gondola fence 24 is preferably installed at least at a position facing the boarding and alighting step 9.

[0034] An embodiment of the gondola fence 24 is shown in FIGS. 11(a) and 11(b). FIG. 11(a) is a front view of the gondola fence 24, and FIG. 11(b) is a side view thereof. The gondola fence 24 includes a lower part 27A and an upper part 27B. The lower part 27A is a part that extends downward from the upper cross bar 4 of the gondola main body 1A, and the upper part 27B is a part that extends upward from the upper cross bar 4. The upper part 27B includes a U-shaped frame member 25 and a lattice 26 installed in the space surrounded by the frame member 25. The lattice 26 is not limited to the horizontal lattice shown in the figure. For example, it may be arranged in the space surrounded by the frame member 25 like a vertical lattice, or may be a mesh material such as a wire mesh. The frame member 25 may be U-shaped.

[0035] The frame member 25 is made of a pipe material such as metal. Insertion portions 40 that are inserted into both ends of the U-shaped frame member 25 project upward from the lower part 27A of the gondola fence 24. By inserting the insertion portions 40 into both ends of the frame member 25, the lower part 27A and the upper part 27B can be detachably connected. Note that the lower part 27A and the upper part 27B may be integrally formed.

[0036] The lower part 27A has the same configuration as the above-described boarding and alighting step 9, except that the above insertion part 40 is provided instead of the deck part 14 and the handrail part 15. That is, the lower part 27A includes an upper locking tool 12 that locks to the upper horizontal bar 4 of the gondola main body 1A, and an intermediate locking tool 13 that locks two frame members 25 to the intermediate horizontal bar 5. Therefore, similar to the boarding and alighting step 9, the intermediate locking tool 13 of the gondola fence 24 is movable along the frame member 25 according to the height of the intermediate horizontal bar 5. Thus, even when using gondola main bodies 1B, 1C, etc. with different heights of the intermediate horizontal bar 5 instead of the gondola main body 1A, one gondola fence 24 can be used correspondingly. Also, the gondola fence 24 is fixed to the upper horizontal bar 4 by the upper locking tool 12 and the fixing tool 16 so that the gondola fence 24 does not come off from the gondola main body 1A in strong winds or the like. Since the other members and configurations of the gondola fence 24 are the same as those of the boarding and alighting step 9, detailed description thereof is omitted.

[0037] <Gondola temporary fixing device 28> Next, an embodiment of the gondola temporary fixing device 28 in the present invention will be described with reference to FIGS. 12(a), (b), 13A, and 13B. FIGS. 12(a) and (b) are a plan view and a side view showing the gondola temporary fixing device 28 according to the present embodiment. FIGS. 13A and 13B are a side view and a plan view showing the usage state of the gondola temporary fixing device 28. Note that the same members as those shown in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

[0038] The gondola temporary fixing device 28 of the present embodiment (hereinafter sometimes referred to as the temporary fixing device 28) is used, for example, when an operator W moves from the gondola main body 1A to the veranda 7 to temporarily fix the gondola main body 1A simply. The temporary fixing device 28 includes a belt-like plate member 29 having a bent portion 31 at one end, a slide member 32 slidably attached to the plate member 29 along the longitudinal direction of the plate member 29, a fixing member 41 for fixing the slide member 32 at a predetermined position of the plate member 29, and a contact plate portion 36 attached to the slide member 32 and hanging downward.

[0039] Specifically, the strip-shaped plate member 29 has a long hole 30 formed along its longitudinal direction, and a bent portion 31 at one end in the longitudinal direction is formed by bending one end of the plate member 29 downward. The slide member 32 has a square tube shape and is externally inserted into the plate member 29 so as to be slidable in its longitudinal direction. As shown in FIG. 12(b), the fixing member 41 includes a nut portion 33 attached to the lower portion of the slide member 32 by welding or the like, and a bolt portion 34 screwed into the nut portion 33.

[0040] At the upper and lower portions of the slide member 32, bolt insertion holes (not shown) are provided in the vertical direction perpendicular to the longitudinal direction, and the bolt portion 34 is inserted through the bolt insertion holes and the long hole 30 and screwed into the nut portion 33. A handle grip portion 35 is attached to the upper end of the bolt portion 34. Thereby, before tightening the bolt portion 34, the slide member 32 can be freely moved along the long hole 30, and the slide member 32 can be fixed by tightening the bolt portion 34 at a desired position. Skirt portions 37 are provided downward on both side portions of the slide member 32 (see FIG. 12(b)). A carabiner 38 is attached to the skirt portion 37 by a string 39.

[0041] To temporarily fix the gondola body 1A using the temporary fixing device 28, as shown in FIG. 13A, the plate member 29 is bridged between the upper surface of the veranda handrail 19 and the upper surface of the upper horizontal rail 4 located on the building side of the gondola body 1A, and with the bent portion 31 at one end of the plate member 29 locked to the veranda handrail 19, the slide member 32 is slid so as to sandwich the veranda handrail 19 and the upper horizontal rail 4 from both sides, the contact plate portion 36 is brought into contact with the upper horizontal rail 4, and the bolt portion 34 is screwed into the nut portion 33 to fix the slide member 32.

[0042] In actual operation, since the gondola main body 1A is suspended by a wire, when the worker W grabs and pulls the balcony railing 19 of the building 6 from inside the gondola main body 1A, the gondola main body 1A will easily move closer to the vicinity of the balcony railing 19 side. Therefore, the worker W holds the temporary fixing device 28 fixed by turning the handle grip portion 35 with one hand at a position where the balcony railing 19 and the upper horizontal bar 4 have a desired interval, and pulls the balcony railing 19 forward with the other hand. Since the gondola main body 1A moves closer to the balcony railing 19, the bent portion 31 can be covered over the balcony railing 19 from above, and the gondola main body 1A can be fixed when the hand is released. To release the temporary fixing, the bent portion 31 can be removed from the balcony railing 19. In addition, in order to prevent the temporary fixing device 28 from accidentally falling from the gondola main body 1A, it is advisable to wind the string 39 attached to the skirt portion 37 around the upper horizontal bar 4 or the like and fix it with the carabiner 38. By attaching the temporary fixing device 28 to the gondola main body 1A with the string 39 and the carabiner 38, it is possible to prevent the temporary fixing device 28 from accidentally falling.

[0043] If only one temporary fixing device 28 is used, the gondola main body 1A cannot be made parallel to the building 6. Therefore, it is advisable to install the temporary fixing device 28 at least at two locations. In this case, as shown in FIG. 13B, it is advisable to install the two temporary fixing devices 28, 28 at least at two locations separated from each other in opposite directions from the attachment position of the boarding and alighting step 9. The interval between the two temporary fixing devices 28, 28 should preferably be, for example, more than 2 m apart, whereby the gondola main body 1A can be kept parallel to the building 6.

[0044] <Deck fixing tool 42> As shown in FIGS. 14(a) and (b), the gondola device of the present invention preferably includes a deck fixing tool 42 for fixing the deck portion 14 in a vertical posture. By providing the deck fixing tool 42, the deck portion 14 will not accidentally fall to a horizontal posture. In addition, by adopting a structure in which the deck portion 14 must be in a vertical posture for transporting or storing the deck portion 14, the safety of the gondola device can be enhanced.

[0045] Hereinafter, the gondola device provided with the deck fixture 42 will be described with reference to FIGS. 14(a) and (b), FIGS. 15(a) and (b), and FIGS. 16(a) and (b). FIGS. 14(a) and (b) show the gondola device provided with the deck fixture 42. Excluding the deck fixture 42, it has the same structure as the gondola device shown in FIGS. 3 and 5. Therefore, the same components as those shown in FIGS. 3 and 5 are denoted by the same reference numerals, and the description thereof will be omitted.

[0046] FIG. 14(a) is a front view showing the usage state of the gondola device in which the deck portion 14 is not fixed by the deck fixture 42, and the deck portion 14 is in a horizontal posture. FIGS. 15(a) and (b) are a partially enlarged front view of the main part in the usage state and a side view thereof. FIG. 14(b) is a front view showing the unused state in which the deck portion 14 is fixed by the deck fixture 42, and the deck portion 14 is in a vertical posture. FIGS. 16(a) and (b) are a partially enlarged front view of the main part in the unused state and a side view thereof.

[0047] As shown in FIGS. 15(a) and (b), the deck fixture 42 includes an L-shaped member 421 and a pin 422. One end of the pin 422 is attached to the L-shaped member 421 and is slidably inserted into the reinforcing member 111A and the upper tread step 11A from the L-shaped member 421. A stopper 423 is attached to the pin 422 in the reinforcing member 111A to prevent the pin 422 from falling out. A relatively large hole (not shown) is formed in the lower surface of the reinforcing member 111A for inserting the pin 422 having the stopper 423. After the pin 422 is inserted through the hole, the hole is closed with a perforated disk 424 like a washer. The perforated disk 424 is attached to the reinforcing member 111A by welding or the like at its periphery. Further, a hole (not shown) for the pin 422 to project is formed in the upper surface of the upper tread step 11A. Furthermore, a hole 141 into which the pin 422 is inserted when the deck portion 14 is raised to a vertical posture is formed in the lower surface of the deck portion 14.

[0048] To fix the deck portion 14 in a vertical posture with the deck fixture 42, as shown in FIGS. 16(a) and 16(b), the above-described fixture 16 is used. That is, as shown in FIGS. 4(a) and 4(b), the fixture 16 is used to fix the upper locking tool 12 to the upper horizontal bar 4, but it is not required when the boarding and alighting ramp 9 is stored, etc., so it is used to fix the deck portion 14. When the arm 161 of the fixture 16 is rotated to the lower surfaces of the upper tread step 11A and the reinforcing member 111A, the tip of the arm 161 abuts against the hanging piece of the L-shaped member 421 to position the fixture 16. In this state, the handle 169 of the fixture 16 is rotated to raise the screw rod 167 screwed into the nut 168. The tip of the raised screw rod 167 abuts against the horizontal piece of the L-shaped member 421, further pushes up the L-shaped member 421, and projects the tip of the pin 422 erected upward from the L-shaped member 421 through the hole (not shown) of the upper tread step 11A and inserts it into the hole 141 (see FIG. 15(a)) of the deck portion 14 in a vertical posture. Thereby, the deck portion 14 can be fixed in a vertical posture and will not accidentally fall, so that the boarding and alighting ramp 9 can be safely stored, moved, etc. When using the boarding and alighting ramp 9, the reverse operation of the above is performed, the pin 422 is lowered and removed from the deck portion 14, and the deck portion 14 is rotated to a horizontal posture.

[0049] In the above embodiments, the case where the boarding and alighting step 9, the gondola fence 24, and the temporary fixing device 28 are used for the gondola main body 1A has been described, but the same can be similarly applied to the gondola main bodies 1B, 1C, and other gondola main bodies. FIGS. 17(a) to 17(c) show an example in which the gondola device of the present invention is applied to the gondola main bodies 1A to 1C shown in FIGS. 1(a) to 1(c). In FIG. 17(c), a veranda handrail 191 made of a fence such as metal is used. FIG. 17(a) is the same as FIG. 2 in which the gondola device is installed. As is clear from FIGS. 17(a) to 17(c), in the present invention, since the intermediate locking tool 13 is movable along the vertical frame 10 according to the height of the intermediate horizontal bar 5, the boarding and alighting ramp 9 can be attached easily, quickly, and surely. Figures 17(a) to (c) show the state before the temporary fixing device 28 is used, i.e., before the balcony main bodies 1A to 1C are pulled toward the balcony handrail 19, and using the temporary fixing device 28 makes movement between the balcony 7 and the gondola main bodies 1A to 1C safer and easier.

[0050] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications and improvements are possible within the scope of the present invention. [Explanation of symbols]

[0051] 1A, 1B, 1C Gondola body 2 Bottom plate 3 pillars 4 Upper crosspiece 5 Middle crosspiece 6. Building 7. Veranda 8 ladder 9 Boarding ramp 10 Vertical Frame 11A Upper Step 111A Reinforcement member 11B Middle step 11C Lower Step 12 Upper stopper 12a Channel member 13 Intermediate locking device 131 Fastening part 131a Bolt 131b Nut-integrated handle 132 Channel members 14 Deck section 141 holes 15 Handrails for boarding and alighting 16 Fixtures 161 Arm 162 L-shaped plate material 163 Arm Support 164 Contact part 165 volts 166 Nut 167 Screw shaft 168 Nut 169 Handle 18 Rotating shaft 19. 191 Veranda handrail 20. Slide support frame 21. Gap 22. Screw rod 24. Gondola fence 25. Frame material 26. Horizontal lattice (lattice) 27A. Lower part 27B. Upper part 28. Gondola temporary fixing device 29. Plate material 30. Elongated hole 31. Bending part 32. Slide member 33. Nut part 34. Bolt part 35. Handle grip part 36. Contact plate part 37. Skirt part 38. Carabiner 39. String 40. Insertion part 41. Fixing member 42. Deck fixture 421. L-shaped member 422. Pin 423. Stopper 424. Perforated disc W. Worker

Claims

1. A working gondola device that moves up and down along the outer wall surface of a building, comprising: a gondola body on which an operator rides, and a boarding and alighting step installed on the building side of the gondola body; The gondola body includes: a bottom plate for an operator to stand and work on; pillars erected at least at the four corners of the bottom plate; an upper crossbar installed between the pillars; an intermediate crossbar installed between the pillars at a position below the upper crossbar; and is provided with; The boarding and alighting step includes: two vertical frames; a tread installed between these vertical frames; an upper locking tool for locking the two vertical frames to the upper crossbar; an intermediate locking tool for locking the two vertical frames to the intermediate crossbar; a deck portion whose base is located above the upper locking tool and is rotatably attached to the two vertical frames, and is rotatable between a horizontal posture and a vertical posture between the gondola body and the handrail of the building; and is provided with; The intermediate locking tool is movable along the vertical frame according to the height of the intermediate crossbar. A working gondola device.

2. The vertical frame has a boarding and alighting handrail portion extending upward from the vertical frame. The working gondola device according to Claim 1.

3. The tread includes at least an upper tread and an intermediate tread. The working gondola device according to Claim 1 or 2.

4. The upper locking tool has a groove-shaped member or an L-shaped member mounted on the upper crossbar, and further includes a fixing tool for fixing the upper locking tool to the upper crossbar. The working gondola device according to Claim 3.

5. The fixing tool includes an arm with one end attached to the boarding and alighting step and the other end located below the upper crossbar, and a contact portion attached to the other end of the arm, and is configured such that the contact portion contacts the lower surface of the upper crossbar in a state where the groove-shaped member is mounted on the upper crossbar. The working gondola device according to Claim 4.

6. The intermediate locking tool includes a fastening portion attached to each of the two vertical frames, slidable up and down along the vertical frame, and fixable at an arbitrary position, and a groove-shaped member attached to the fastening portion and mounted on the intermediate crossbar. The working gondola device according to Claim 1 or 2.

7. It further includes a deck fixing tool for fixing the deck portion in a vertical posture. The working gondola device according to Claim 1 or 2.

8. A working gondola device that moves up and down along the outer wall surface of a building, comprising: It includes a gondola body for an operator to ride on and a gondola fence installed on the side of the gondola body opposite to the building side. The gondola body has a bottom plate for an operator to stand and work on, columns erected at least at the four corners of the bottom plate, an upper crossbar installed between the columns, and an intermediate crossbar installed between the columns at a position below the upper crossbar. It is provided with The gondola fence consists of a lower part and an upper part connected to each other. The lower part is a part extending below the upper crossbar and includes two vertical frames, an upper locking tool for locking the vertical frames to the upper crossbar, and an intermediate locking tool for locking the vertical frames to the intermediate crossbar. The upper part is a part extending above the upper crossbar and includes a U-shaped or C-shaped frame member and a lattice or mesh member provided in the space surrounded by the frame member. The intermediate locking tool is movable along the vertical frame according to the height of the intermediate crossbar. A gondola device for work.

9. The upper locking tool is composed of a grooved member attached between the two vertical columns, and the locking of the upper locking tool is performed by mounting the grooved member on the upper crossbar. The gondola device for work according to claim 8, further comprising a fixing tool for sandwiching the upper crossbar from above and below together with the upper locking tool.

10. It includes the gondola body and the boarding and alighting steps according to claim 1, and the gondola fence according to claim 8. The boarding and alighting steps are installed on the building side of the gondola body. The gondola fence is installed on the side of the gondola body opposite to the building side and facing the boarding and alighting steps. A gondola device for work.

11. A gondola temporary fixing device for temporarily fixing a gondola body at a predetermined position with respect to a railing of a balcony or veranda of a building, a strip-shaped plate member having a bent portion at one end, a slide member slidably mounted on the plate member along the longitudinal direction of the plate member, a fixing member for fixing the slide member at a predetermined position of the plate member, and a contact plate portion attached to the slide member and hanging downward. A gondola temporary fixing device configured to bridge the plate member between the upper surface of the railing of the balcony or veranda and the upper surface of the upper horizontal rail located on the building side of the gondola body, to bring the contact plate portion into contact with one of the railing and the upper horizontal rail, and to lock the bent portion to one of the railing and the upper horizontal rail so as to maintain a predetermined length of the interval between the railing and the upper horizontal rail.

12. The gondola temporary fixing device according to claim 11, which is installed at at least two locations spaced apart from the mounting positions of the boarding and alighting steps according to claim 1 in opposite directions respectively.

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