Scattering prevention device in a working gondola

Abstract

To provide a scattering prevention device in a work gondola hardly causing breakage and dropping even when blown with strong wind, without setting a heavy and big curing frame on an exterior wall face of a building, and without elevating the frame in accordance with a work block.SOLUTION: In a scattering prevention device, at least a pair of support members 10 projecting outside a building 2 from an outer wall 3 of the building 2 are provided on an upper side and a lower side with respect to the outer wall 3, respectively. Between the pair of upper-side and lower-side support members 10, hanging members 30 are vertically provided, curing nets 15 are arranged between the hanging members 30, stretching means 12 is stretched between the lower-side support members 10 arranged opposite to each other, to thereby hold a flexible scattering prevention member 14 to the stretching means 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a scattering prevention device for a working gondola, and more particularly to a device for preventing scattering of paint or the like from the working gondola.

Background Art

[0002] Conventionally, repair work in exterior wall construction such as repair, cleaning, and painting of the exterior wall surface of buildings such as condominiums has been carried out by workers boarding a working gondola suspended by a support wire from above the building and raising and lowering the working gondola.

[0003] On the outside of the working gondola, a curing sheet is stretched so as to surround the building, and by allowing the working gondola to move up and down between the curing sheet and the building, scattering of paint or the like from the working gondola has been prevented.

[0004] In recent years, high-rise buildings such as super high-rise condominiums have also been constructed, and it is necessary to regularly perform maintenance such as repair, cleaning, and painting on the exterior wall surfaces of these super high-rise buildings. However, in repair work in super high-rise condominiums, when a curing sheet is installed to cover the entire building, the coverage range becomes wide, so a method has been proposed in which the installation range of the curing sheet is divided into sections for each working floor.

[0005] In such a method, conventionally, as shown in FIG. 12, a curing gantry 101 is suspended and supported by a suspension wire 102 from the rooftop of a building 100, the curing gantry 101 is fixed to the exterior wall surface 103 of the building 100 with an anchor 104 or the like, and a curing sheet 105 is disposed along the outer peripheral side surface of the curing gantry 101 from the rooftop of the building 100 to constitute a working space for the working gondola 106.

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the curing stand 101 is a large-scale device with a considerable weight. In order to install it on the outer wall surface 103 of the building 100, it is necessary to firmly fix the curing stand 101 to the outer wall surface 103, and in accordance with the work section on the outer wall surface 103, it is necessary to raise and lower this curing stand 101 and re-fix it each time.

[0007] Also, in the upper floors of the super-high-rise building 100, the curing stand 101 formed in a plank shape may be swayed by strong winds and damaged, and there are also concerns such as the damaged parts falling to the ground.

[0008] Therefore, an object of the present invention is to provide a scattering prevention device for a working gondola that is difficult to be damaged and fall even when swayed by strong winds without using a large-scale curing stand 101 with a large weight.

Means for Solving the Problems

[0009] In order to solve the above problems, the invention according to claim 1 provides at least a pair of support members projecting outward from the outer wall surface of the building to the upper side and the lower side with respect to the outer wall surface, vertically suspends a suspension member between the pair of upper and lower support members, disposes a curing net between the suspension members, installs a tensioning means between the oppositely arranged lower support members, and holds a scattering prevention member having flexibility on this tensioning means.

[0010] The invention according to claim 2 is the invention according to claim 1, wherein the scattering prevention member is arranged along the left-right direction with respect to the outer wall surface of the building, the center in the front-rear direction of the building hangs down, the upper part is open, and an internal space is formed through which the working gondola can enter and exit from the open upper part.

[0011] The invention according to claim 3 is the invention according to claim 1 or 2, wherein a detachable member for holding the support member is fixed to the outer wall surface of the building, the support member is inserted into the detachable member, and the support member is detachably arranged with respect to the outer wall surface of the building.

[0012] The invention according to claim 4 is characterized in that, in the invention according to claim 3, a locking member for restricting upward movement of the support member is provided on the support member from the state of insertion of the support member into the detachable member.

Effect of the Invention

[0013] According to the present invention, at least a pair of support members protruding outward from the outer wall surface of a building are provided on the upper side and the lower side of the outer wall surface, respectively, a curing net is disposed between the hanging members vertically provided between the upper support member and the lower support member, a stretching means is installed between the oppositely arranged lower support members, and a scattering prevention member is held by this stretching means. During construction such as cleaning of the outer wall surface of a building, even if cleaning liquid, paint, etc. scatter from the work gondola, scattering of the cleaning liquid, paint, etc. to the outside from the work space surrounded by the scattering prevention member and the curing net can be prevented. In addition, since it is not necessary to install a plate-shaped curing gantry that becomes a heavy object as in the prior art, it is possible to prevent the curing gantry from being blown by strong wind, damaged, and falling to the ground.

Brief Description of the Drawings

[0014]

Figure 1

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Figure 12

Modes for Carrying Out the Invention

[0015] The modes for carrying out the present invention will be described based on the examples shown in FIGS. 1 to 11.

Examples

[0016] FIGS. 1 to 6 show Example 1 of the present invention.

[0017] FIG. 1 is a perspective view showing Example 1 of the present invention, with the splash prevention device 1 in the working gondola installed on the outer wall surface 3 of the building 2.

[0018] As shown in FIG. 1, the splash prevention device 1 in this working gondola is installed in the working gondola 4 to prevent the splashing of cleaning liquid, paint, etc. outside the work area and the falling of tools, etc. from the working gondola 4 to the ground when performing operations such as cleaning, repairing, and painting on the outer wall surface 3 of the building 2.

[0019] Hereinafter, as shown in FIG. 1, assuming that the building side is the inner side A, the opposite side is the outer side B, the upper floor side of the building is the upper side C, and the lower floor side is the lower side D, and 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.

[0020] The work gondola 4 allows workers to board and alight, and has a boarding space 5 formed therein where workers can board and perform operations such as cleaning, repairing, and painting the outer wall surface 3 of the building 2.

[0021] This work gondola 4 is suspended by a hoisting wire 6 from the rooftop of the building 2, and is provided so as to be able to move up and down in the vertical direction (Y - Y direction) on the outer wall surface 3 formed in a substantially vertical shape of the building 2. By changing the attachment position of a hoisting wire support tool 7 that supports the suspended state of the hoisting wire 6, the suspension position of the work gondola 4 is provided so as to be movable in the left - right direction (X - X direction).

[0022] The scattering prevention device 1 in the work gondola of the present invention forms a work space 8 on the outer wall surface 3 of the work gondola 4, and is composed of a lower support member 10a serving as the lower support member 10, an upper support member 10b serving as the upper support member 10, a lower erection rope 12a and an upper erection rope 12b serving as the stretching means 12, a scattering prevention film 14a serving as the scattering prevention member 14, and a curing net 15.

[0023] FIG. 2 is a perspective view showing the configuration of the lower support member 10a and the lower erection rope 12a.

[0024] As shown in FIG. 2, the lower support member 10a is composed of a horizontal piece 20, a vertical piece 21, and a support piece 22. With respect to the outer wall surface 3 of the building 2, the horizontal piece 20 is arranged in the left - right direction (X - X direction), the vertical piece 21 is arranged in the vertical direction (Y - Y direction), and the support piece 22 is arranged in the front - rear direction (Z - Z direction), and each piece is formed so as to be orthogonal.

[0025] The lower support member 10a is screwed by inserting attachment bolts 23 through the horizontal piece 20 and the vertical piece 21 into an anchor (not shown) driven into the outer wall surface 3 of the building 2, and the support piece 22 is arranged so as to protrude outward B with respect to the building 2.

[0026] On the lower side D of the support piece 22, lower eye bolts 24 serving as fasteners are respectively attached to the front end and the rear end of the support piece 22, that is, on the outer side B and the inner side A of the building 2, and upper eye bolts 25 are also attached to the front end and the rear end of the support piece 22 on the upper side C of the support piece 22.

[0027] A pair of the lower support members 10a are provided so that the lower support members 10a face each other in the left - right direction (X - X direction) of the building 2, and a lower erection rope 12a is respectively stretched between the opposing lower eye bolts 24, 24 of one lower support member 10a and the other lower support member 10a at the front end and the rear end of the support piece 22.

[0028] Figure 3 is a perspective view in which a scattering prevention member 14 is installed on the lower erection rope 12a of Figure 2.

[0029] As shown in Figure 3, a scattering prevention film 14a, which is a scattering prevention member 14, is installed on the pair of lower support members 10a, 10a and the lower erection ropes 12a, 12a at their front ends and rear ends.

[0030] This scattering prevention film 14a is arranged along the left - right direction (X - X direction) on the outer wall surface 3 of the building 2, and both ends in the front - rear direction (Z - Z direction) are held by binding means 27 such as carabiners to the lower erection ropes 12a, 12a. As a result, the center in the front - rear direction (Z - Z direction) of the building 2 droops, both ends in the left - right direction (X - X direction) are closed, and the upper part of this scattering prevention film 14a is opened to form an internal space 28 that continues along the left - right direction (X - X direction) with respect to the outer wall surface 3 of the building 2 between the pair of lower support members 10a, 10a.

[0031] As shown in Figure 4, in this internal space 28, a space is secured such that a working gondola 4 can enter and exit from above, and a worker on the working gondola 4 can perform operations such as attaching and detaching from the outer wall surface 3 of the lower support member 10a from the boarding space 5 of the working gondola 4.

[0032] Note that the splash prevention member 14 is formed of a flexible member, for example, a film-shaped or net-shaped member made of a resin material, which prevents the downward splash of cleaning liquid, paint, etc., and is maintained at a strength such that the splash prevention member 14 does not break even if a tool or the like falls from the work gondola 4 and collides.

[0033] In addition, as shown in FIGS. 1 and 2, on the upper side C in the vertical direction (Y-Y direction) of the building 2 of the lower support member 10a, a pair of upper support members 10b having the same shape as the lower support member 10a are installed in the left-right direction (X-X direction) of the building 2, and an upper erection rope 12b is stretched at the tip of the support piece 22 between the lower eyebolts 24, 24 (not shown) facing each other of one upper support member 10b and the other upper support member 10b.

[0034] The distance between the lower support member 10a and the upper support member 10b is arranged to be separated by approximately ten floors in the building 2, and a suspension rope 30a serving as a suspension member is vertically provided between the lower support member 10a and the upper support member 10b.

[0035] This suspension rope 30a is provided on the inner side A and the outer side B of the building 2 in the support piece 22, and the upper end and the lower end of the suspension rope 30a are respectively fastened to the lower eyebolt 24 of the upper support member 10b serving as a fastening tool and the upper eyebolt 25 of the lower support member 10a.

[0036] In addition, a curing net 15 is arranged between each suspension rope 30a, the lower erection rope 12a, and the upper erection rope 12b.

[0037] The curing net 15 is held by a fastening means 27 such as a carabiner with respect to the lower support member 10a, the upper support member 10b, the suspension rope 30a, the lower erection rope 12a, and the upper erection rope 12b, and is installed slidably in the vertical direction (Y-Y direction) of the building 2.

[0038] In the internal space surrounded by the above-described splash prevention film 14a, the curing net 15, and the outer wall surface 3 of the building 2, a work space 8 is formed, and in this work space 8, the work gondola 4 is arranged so as to be movable in the vertical and horizontal directions (Y - Y direction and X - X direction).

[0039] Next, a working method using the splash prevention device 1 in the work gondola will be described.

[0040] First, as shown in FIG. 1, the work gondola 4 is suspended by a hoisting wire 6 from the top floor of the building 2, and a plurality of lower support members 10a and upper support members 10b are installed in advance on the outer wall surface 3 of the building 2 where construction is planned. Each member such as the lower erection rope 12a, the upper erection rope 12b, the splash prevention film 14a, the suspension rope 30a, and the curing net 15 is attached to the working floor to form the above-described work space 8.

[0041] In this work space 8, operations such as cleaning and painting are performed by the work gondola 4. After the construction of this work section is completed, the curing net 15, the upper erection rope 12b, the suspension rope 30a, and the splash prevention film 14a are removed.

[0042] Thereafter, below the lower support member 10a in the vertical direction (Y - Y direction) of the building 2, the previous lower support member 10a is used as a new upper support member 10b, and the lower support member 10a on the lower floor is used as a new lower support member 10a, and each member is attached again to newly form the work space 8 on the lower floor.

[0043] The steps of forming this work space 8 and performing operations such as cleaning and painting by the work gondola 4 are sequentially carried out to the lower floors.

[0044] As described above, during the construction such as cleaning of the outer wall surface 3 of the building 2, even if the cleaning liquid, paint, etc. scatter from the work gondola 4, the work space 8 surrounded by the splash prevention film 14a, the curing net 15, etc. prevents the cleaning liquid, paint, etc. from scattering to the outside.

[0045] Further, according to the scattering prevention device 1 in the working gondola of the present invention, when constructing a high-rise building such as a super high-rise condominium, it is not necessary to install and move the curing stand 101, which is a heavy object as in the prior art, to a high floor for each work process. Furthermore, there is no risk that the curing stand 101 having a bottom surface in the shape of a plank will be blown by strong wind, damaged, and fall.

[0046] Also, as shown in FIG. 12, on the roof of the building 100 as in the prior art, it is not necessary to install the suspension wire 102 for suspending and holding the curing stand 101 and its support tool 107. Compared with the construction method using the conventional curing stand 101, it is possible to provide a scattering prevention device with a small number of parts, low cost, and lightweight and safe.

[0047] Also, since the lower support member 10a and the upper support member 10b can freely arrange their fixed positions according to the construction range on the outer wall surface 3 of the building 2, as shown in FIG. 5, with respect to the construction surface of FIG. 1, the installation distance between the left and right lower support members 10a, 10a and the upper support members 10b, 10b can be set wide, and as shown in FIG. 6, a plurality of construction surfaces can also be installed.

[0048] Thereby, according to the scattering prevention device 1 in the working gondola of the present invention, on the outer wall surface 3 of the building 2, it is possible to freely secure a construction surface according to the construction range and work process of the outer wall surface 3, such as securing a wide working space 8 or configuring a plurality of or pinpoint working spaces 8.

Example

[0049] FIGS. 7 and 8 show Example 2 of the present invention. FIG. 7 is a perspective view in which the lower support member 10a and the upper support member 10b of the scattering prevention device 1 in the working gondola in Example 2 of the present invention are attached to the outer wall surface 3 of the building 2 by the detachable member 40. In FIGS. 7 and 8, only the lower support member 10a is shown.

[0050] In Example 2, as shown in FIG. 7, the lower support member 10a and the upper support member 10b reduce the diameter of the lower end of the vertical piece 21 to be smaller than the outer diameter of the upper end, and form a locking portion 41 by the step, and the detachable member 40 abuts against the locking portion 41 to restrict the downward movement of the vertical piece 21.

[0051] Further, a locking member 42 is provided on the side surface of the vertical piece 21. The locking member 42 has a swinging portion 43 on the upper side C and a contact portion 44 on the lower side D, and is pivotally supported by a bolt 45 so as to be rotatable with respect to the vertical piece 21.

[0052] The locking member 42 is arranged in a protruding state where the swinging portion 43 is located outside one side surface of the vertical piece 21 and a storage state where it is located inside by swinging with the bolt 45 as a rotation axis.

[0053] As shown in FIGS. 7 and 8, the protruding state is automatically formed by the weight of the locking member 42, that is, it becomes a locked state, and the contact portion 44 contacts the wall surface of the vertical piece 21 having an L-shaped cross-sectional shape, so that the swinging range of the swinging portion 43 is restricted so that it does not rotate downward.

[0054] Further, a pair of the detachable members 40 are provided on the outer wall surface 3 of the building 2 in the vertical direction (Y - Y direction) of the building 2. As shown in FIG. 8, the detachable member 40 is composed of a screw portion 46 and an insertion hole portion 47.

[0055] By screwing the screw portion 46 formed in the insertion hole portion 47 into an anchor 48 driven into the outer wall surface 3 of the building 2, a pair of vertically continuous insertion holes 49, 49 are formed.

[0056] By inserting the vertical pieces 21 of the lower support member 10a and the upper support member 10b into the upper and lower insertion holes 49, 49 from above, the lower support member 10a and the upper support member 10b are detachably provided with respect to the outer wall surface 3 of the building 2 within the insertion hole 49.

[0057] Note that the inner diameter of the insertion hole 49 and the outer diameter of the lower part of the vertical part pieces 21 of the lower support member 10a and the upper support member 10b are set to be approximately the same diameter, suppressing the inadvertent rotation of the lower support member 10a and the upper support member 10b in the left-right direction (X-X direction).

[0058] Since the other configurations are the same as those of the support member 10 in the first embodiment, the same parts as those described above are denoted by the same reference numerals and their description is omitted.

[0059] Next, a construction method using the scattering prevention device 1 in the work gondola according to the second embodiment will be described.

[0060] When installing the scattering prevention device 1 in the work gondola of the second embodiment, first, a pair of the detachable members 40 are installed at an arbitrary position on the outer wall surface 3 of the building 2, and the vertical part pieces 21 of the lower support member 10a and the upper support member 10b are respectively inserted into the insertion holes 49, 49 from above.

[0061] At this time, in the lock member 42, the swing part 43 abuts against the inner circumference of the insertion hole part 47, and since the swing part 43 is housed inside the vertical part piece 21, the vertical part piece 21 does not prevent the passage of the detachable member 40.

[0062] Also, after the lock member 42 passes through the detachable member 40, the swing part 43 protrudes outside the outer diameter of the insertion hole part 47 due to the own weight of the lock member 42, interfering with the detachable member 40 and restricting the upward movement of the lower support member 10a and the upper support member 10b.

[0063] Thereby, even when an unintended biasing force acts on the lower support member 10a and the upper support member 10b from below to above, or when the scattering prevention member 14 is blown by strong wind, the lower support member 10a and the upper support member 10b are prevented from falling off the detachable member 40.

[0064] In addition, when removing the lower support member 10a and the upper support member 10b from the detachable member 40, by pressing the lock member 42 toward the storage side, the swing portion 43 enters the inside of the insertion hole portion 47, thereby unlocking and allowing it to be pulled out upward.

[0065] According to the second embodiment, since the lower support member 10a and the upper support member 10b on the outer wall surface 3 of the building 2 can be easily attached and detached, the work space can be easily removed and reinstalled according to the work process.

Embodiment

[0066] Figs. 9 and 10 show a third embodiment of the present invention.

[0067] Fig. 9 is a perspective view showing the lower support member 50a for the corner, which serves as the support member 10 of the scattering prevention device 1 in the work gondola in the third embodiment of the present invention, attached to the corner on the outer wall surface 3 of the building 2.

[0068] Note that an upper support member for the corner, which also serves as the support member 10, is arranged above the lower support member 50a for the corner. Since this member has the same structure as the lower support member 50a for the corner, its description is omitted.

[0069] In the third embodiment, the lower support member 50a for the corner and the upper support member for the corner are provided on both outer wall surfaces 3 in the front-back and left-right directions (Z-Z direction and X-X direction) of the corner, as shown in Figs. 9 and 10. The corner piece 54 is integrally formed with the horizontal piece 52 and the vertical piece 53 so as to protrude by rotating approximately 45 degrees in the front-back direction (Z-Z direction) with respect to the plane of the outer wall surface 3 from the corner of the building 2.

[0070] In addition, since the lower erection rope 12a, the upper erection rope 12b, and the scattering prevention member 14 are the same as those described above, they are not shown. The same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and their descriptions are omitted.

[0071] According to the third embodiment, as shown in FIG. 10, by attaching the lower support member 50a for the corner and the upper support member for the corner to the corner of the building 2, a working space 8 communicating between the two adjacent outer wall surfaces 3, 3 through the corner is formed, and construction near the corner can be easily carried out.

Embodiment

[0072] FIG. 11 shows Embodiment 4 of the present invention.

[0073] FIG. 11 is a perspective view showing the lower support member 50a for the corner, which serves as the support member 10 of the scattering prevention device 1 in the work gondola in Embodiment 4 of the present invention, attached to the corner on the outer wall surface 3 of the building 2 by the detachable member 40.

[0074] Note that, also above the lower support member 50a for the corner in Embodiment 4, an upper support member for the corner, which serves as the support member 10, is arranged. However, since it has the same structure as the lower support member 50a for the corner as described above, its description is omitted.

[0075] The lower support member 50a for the corner and the upper support member for the corner in Embodiment 4 are formed such that, as shown in FIG. 11, the vertical piece 53 in Embodiment 3 protrudes downward from the horizontal piece 52 and is formed to be insertable into the detachable member 40.

[0076] Also, regarding the lock member 42, the swing width is regulated so that the swing part 43 does not rotate downward by the contact of the contact part 44 with the locking pin 39 fixed to the side surface of the vertical piece 53.

[0077] In addition, since the lower erection rope 12a, the upper erection rope 12b, and the scattering prevention member 14 are the same as those in Embodiment 2, the same reference numerals as those in Embodiment 1 are given to the same parts as those in Embodiment 2, and their description is omitted.

[0078] According to the fourth embodiment, the same effects as both Embodiment 2 and Embodiment 3 can be exhibited.

Explanation of Reference Numerals

[0079] 1 Splash prevention device 2 Building 3 Outer wall surface 10 Support member 12 Tensioning means 14 Splash prevention member 15 Curing net 30 Suspension member 40 Detachable member 42 Locking member

Claims

1. At least a pair of support members protruding outward from the outer wall surface of the building are provided on the upper side and the lower side with respect to the outer wall surface, a suspension member is vertically provided between the pair of upper and lower support members, a curing net is disposed between the suspension members, and tensioning means is installed between the oppositely arranged lower support members, and a scattering prevention member having flexibility is held by the tensioning means. A scattering prevention device for a working gondola, characterized in that.

2. The scattering prevention member is arranged along the left-right direction with respect to the outer wall surface of the building, the center in the front-rear direction of the building hangs down, the upper part thereof is open, and an internal space through which the working gondola can enter and exit is formed from the open upper part. A scattering prevention device for a working gondola according to claim 1, characterized in that.

3. A detachable member for holding the support member is fixed to the outer wall surface of the building, the support member is inserted into the detachable member, and the support member is detachably arranged with respect to the outer wall surface of the building. A scattering prevention device for a working gondola according to claim 1 or 2, characterized in that.

4. The support member is provided with a locking member for restricting upward movement of the support member from the state of being inserted into the detachable member of the support member. A scattering prevention device for a working gondola according to claim 3, characterized in that.

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