JP2002089047A - Protection device for scaffold, pipe device for scaffold, and scaffold device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection device for a scaffold and a scaffold device capable of safely performing assembly-in work into the scaffold device and being effective for preventing worker's falling down from a roof. SOLUTION: A first frame part 110 and a second frame part 120 constituting a frame body 105 are opposingly arranged across an interval from each other, and a third frame part 130 and a fourth frame part 140 are opposingly arranged across an interval from each other. A protection member 150 is provided in an internal space surrounded by the frame body 105 and is fixed to the frame body 105. A first platelike part 131 has a first hooking hole 101. A second platelike part 132 has a second hooking hole 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a scaffolding protection device,
The present invention relates to a scaffold pipe device and a scaffold device.

[0002]

2. Description of the Related Art In a scaffolding device for a building, as a means for preventing a worker working at a high position such as a roof from falling off the roof, conventionally, as shown in FIG.
The fall prevention horizontal pipes 61 and 62 are fixed to the distal end portions of the plurality of vertical pipes 50 installed close to the eaves 31 and beyond the height of the eaves 31 at intervals in the vertical direction. Was Generally, the horizontal pipe 61 is attached to the eave 31 at, for example, a distance H13 = 300 mm from the eave 31, and the horizontal pipe 62 is spaced from the eave 31 by a distance H1 from the horizontal pipe 61.
4 = Mounted at positions separated by 600 mm.

As a scaffolding device, a bracket 40 is attached to a vertical pipe 50 and a vertical pipe 51,
Is attached to the scaffold cloth plate 70. The scaffold cloth board 70 provides a worker with a working scaffold, and is arranged so that a space having a height H12 necessary for the work is generated between the scaffold cloth board 70 and the eaves 31. The height H12 is generally 1600 to 1800 m
m.

Further, a horizontal pipe 60 serving as a handrail is disposed on the vertical pipe 50. The horizontal pipe 60 is generally attached at a position separated by a height H11 of about 90 mm from the scaffold cloth board 70.

In the above-described conventional scaffolding device, the scaffold cloth plate 7
With reference to 0, the fall prevention horizontal pipe 61 must be mounted at a height of (H11 + H13) = 1900 to 2100 mm. The fall prevention horizontal pipe 62 must be mounted at a higher position, (H11 + H13 + H14) = 2500-2700 mm.

[0006] The horizontal pipe 61 based on the scaffold cloth board 70,
In view of the mounting height of 62 and the reach of workers, it is clear that, in particular, the operation of mounting the horizontal pipe 62 to the vertical pipe 50 cannot be performed on the scaffold cloth board 70. It is. Therefore, conventionally, a worker rides on the horizontal pipe 60 serving as a handrail, winds the legs around the vertical pipe 50, and attaches the horizontal pipe 62 to the vertical pipe 50. An acrobatic operation is required for such an attaching operation, which is extremely dangerous. The same danger is caused when dismantling the scaffolding device.

Further, the horizontal pipe 6 serving as a means for preventing falling
For example, since the members 1 and 62 are arranged at an interval H14 of, for example, 600 mm, the worker who has fallen on the roof 3 fails to grasp the horizontal pipes 61 and 62 and falls down between the horizontal pipes 61 and 62. There is fear. That is, the fall prevention function of the horizontal pipes 61 and 62 is not sufficient.

[0008] Further, building materials and working tools may fall from the roof between the horizontal pipes and injure workers under the scaffolding device.

Next, when the ground on which the vertical pipes are erected is uneven terrain with irregularities, the heights of the tips of the vertical pipes are different, and the aesthetic appearance of the scaffolding device is impaired. Conventionally, as a means to align the height of the tip of the vertical pipe,
A jack was installed on the ground, the bottom end of the vertical pipe was received by the jack, and the jack was adjusted to adjust the position of the bottom end of the vertical pipe and adjust the height of the tip. For this reason, a large amount of labor was required for the height adjustment work of the vertical pipe.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide a scaffolding protection device capable of safely and easily performing attachment / detachment work on a vertical pipe serving as a scaffolding pipe, and a scaffolding device using this protection device. To provide.

Another object of the present invention is to provide a scaffolding protection device and a scaffolding device which are effective for preventing a worker from falling off a roof and dropping of work tools and building materials.

Still another object of the present invention is to provide a scaffolding protection device and a scaffolding device capable of securing the safety of a person at a position lower than a roof.

Still another object of the present invention is to provide a scaffold capable of aligning the height of the end of a vertical pipe by a simple insertion operation without providing a jack at the lowermost end of the vertical pipe to be a scaffold pipe. To provide a pipe device for use.

[0014]

In order to solve the above-mentioned problems, the present invention discloses a scaffolding protection device, a pipe device and a scaffolding device.

<Protection Device for Scaffold> A protection device for scaffold according to the present invention (hereinafter referred to as a protection device) includes a frame, a protection member, a first plate-shaped portion, and a second plate-shaped portion. including. The frame has a first frame, a second frame, a third frame, and a fourth frame. The first and second frame portions are opposed to each other at an interval. The third and fourth
Are arranged facing each other with an interval therebetween, and each of them connects the first frame portion and the second frame portion.

The protection member is disposed in an internal space surrounded by the frame, and is fixed to the frame.

The first plate-shaped portion has a first locking hole and is provided near a joint between the first frame portion and the third frame portion. The second plate-shaped portion has a second locking hole, and is provided near a joint between the second frame portion and the third frame portion.

In the above-described protective device according to the present invention,
The frame has first to fourth frame portions. The first and second frame portions are arranged facing each other with a space therebetween. The third and fourth frame portions are arranged facing each other with a space therebetween, and each connect the first frame portion and the second frame portion. Therefore, a frame having high mechanical strength can be obtained.

In the protective device according to the present invention, the first plate-like portion is provided near the joint between the first frame portion and the third frame portion of the frame body.
The first plate-shaped portion is provided with a first locking hole. Furthermore,
The second frame is provided near the joint between the second frame and the third frame of the frame.
The second plate-shaped portion is provided with a second locking hole. Therefore, when the protection device of the present invention is mounted at a high position on the scaffolding device, the protection device is lifted with the fourth frame portion side of the frame as the lower side, and the first and second locking holes are provided. The protective device may be hooked using. Such an operation can be performed on a scaffold cloth. Therefore, the operation of attaching the protective device can be performed safely and easily.

Further, in the protection device of the present invention, the protection member is provided in the internal space surrounded by the frame, and is fixed to the frame. Therefore, by mounting the protection device of the present invention near the eaves of the roof, the fall of the worker from the roof can be prevented by the protection member. Therefore, the safety of the worker on the roof is ensured.

Further, by selecting the arrangement interval of the protective members, the size of the opening, and the like, it is possible to prevent building materials or work tools from falling from the roof. Therefore, the safety of a person (mainly a worker) located at a position lower than the roof is improved.

In order to remove the hung protection device,
While pushing up the fourth frame side of the frame on the scaffold cloth board,
The protection device may be swung and the locked state of the protection device may be released using the first and second locking holes. Therefore, the work of removing the protective device can be performed safely and easily.

The protective member can be designed to have a structure suitable for reducing the overall weight of the protective device and reducing the wind pressure applied to the protective device. As a result, the work load on the worker can be reduced, and the swing of the protective device can be reduced even in the case of receiving a strong wind.

Preferred protective devices further include at least one
Three reinforcing members. The reinforcing member traverses the internal space surrounded by the frame, and both ends are fixed to the frame. With such a reinforcing member, the mechanical strength of the frame can be increased. This reinforcing member can also be used as a protective member.

<Pipe Device for Scaffolding> A pipe device for scaffolding (hereinafter referred to as a pipe device) according to the present invention includes a first pipe portion and a second pipe portion. The second pipe section is coupled to the first pipe section and has an inner diameter larger than an outer diameter of the first pipe section.

According to the pipe device having such a structure, the first pipe portion has the same outer diameter as the vertical pipe used as the scaffold pipe, so that the second pipe portion is formed at the upper end of the vertical pipe used as the scaffold pipe. Can be inserted. In that case, by positioning the lower end of the second pipe portion, for example, as a handrail member, usually by a horizontal pipe provided in a scaffolding device, the installation location of the vertical pipe is uneven terrain with irregularities. Even if the height of each upper end of each vertical pipe is different,
The height at the uppermost end of the pipe device can be adjusted to the same horizontal height position by a simple operation of merely inserting the second pipe portion. Unlike the past, there is no need to adopt a structure that receives the bottom end of the vertical pipe by a jack installed on the ground, and adjust the jack to adjust the position of the bottom end of the vertical pipe and adjust the height of the pipe tip No need. For this reason, the scaffold assembling work becomes extremely easy.

[0027] The pipe device of the present invention may further include a first hook portion and a support portion. The first hooking part is
It is fixed to the first pipe part. The support is fixed to the first pipe.

When the protective device of the present invention is hung using this pipe device, the two pipe devices are inserted into vertical pipes (scaffold pipes) arranged at an interval from each other.

Next, the first pipe device provided in one pipe device
And the second hook hole of the protection device is hooked on the first hook portion provided on the other pipe device.

Then, the frame of the protection device is supported by the support provided on one pipe device and the support provided on the other pipe device. Thereby, the protection device is hung on the pipe device and supported. Accordingly, a pipe device suitable for mounting the protection device of the present invention is obtained.

Furthermore, the present invention discloses a scaffolding device comprising at least one of the above mentioned protective devices or pipe devices. According to this scaffolding device, the function and effect of the protection device, the pipe device, or a combination thereof according to the present invention can be obtained.

Other objects, configurations and advantages of the present invention will be described in more detail with reference to the accompanying drawings which are embodiments. The figures are merely illustrative.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <Protection Apparatus> FIG. 1 is a perspective view of a protection apparatus according to the present invention, and FIG. 2 is a front view of the protection apparatus shown in FIG. The illustrated protection device includes a frame 105, a protection member 150, a first plate portion 131, and a second plate portion 132.

The frame 105 includes a first frame 110 and a second frame 110.
Frame portion 120, third frame portion 130, and fourth frame portion 14
0. The frame body 105 can be configured using, for example, a metal member having an L-shaped cross section. First frame 110
And the second frame portion 120 are arranged to face each other with an interval therebetween.

The third frame portion 130 and the fourth frame portion 140 are arranged facing each other with a space therebetween. The third frame 130 connects the first frame 110 and the second frame 120. The fourth frame 140 also connects the first frame 110 and the second frame 120. The third frame 130 is arranged at right angles to the first frame 110 and the second frame 120. The fourth frame 140 is also the first frame 110
And at right angles to the second frame 120. The frame 105 is made of a metal material containing iron as a main component in consideration of mechanical strength. The frame 105 is subjected to a surface treatment such as plating to improve rust prevention and corrosion resistance.

The protection member 150 is provided in an internal space surrounded by the frame 105 and is fixed to the frame 105. The protection member 150 can be constituted by a net, a perforated plate, a non-perforated face plate, or the like. Specific examples of the net include an expanded net or a net. The expanded mesh is obtained by slitting a thin metal plate in a lattice shape and stretching it in the horizontal or vertical direction. The figure shows a protective member 1 with an expanded mesh.
50 is shown. The protection member 150 is fixed to the frame 105 by means such as welding.

The perforated plate is a plate in which a large number of holes are opened in the plane, and by selecting the size or number of the holes,
Various aspects can be taken. The non-perforated face plate may include an advertising board and the like.

The protective member 150 may further be constituted by arranging square rods, round rods, angle members or the like at intervals in the internal space of the frame 105. As for the arrangement, a parallel arrangement, an oblique arrangement, a combination thereof, or the like can be adopted. The opening created by the arrangement is set to at least a size effective for preventing falling of a person. Further, the size may be set to a size suitable for preventing falling of building materials and work tools.

The first plate-like portion 131 is connected to the first frame 110
And the third frame 130 are provided near the joint. The first plate-like portion 131 is made of a metal plate material, and is fixed to the frame 105 by, for example, welding. The first plate-like portion 131 has the first locking hole 101. The first locking hole 101 is provided between the first frame portion 110 and the third frame portion 13.
It is provided in the vicinity of the joint with zero. First hook hole 101
Penetrates the first plate-like portion 131. Illustrated first
Has an elongated hole shape, and in the drawing,
The hole width ΔD1 at the lower end is larger than the hole width ΔD2 at the upper end (see FIG. 2).

The second plate-shaped portion 132 is formed by the second frame 120
And the third frame 130 are provided near the joint. The second plate-shaped portion 132 is also made of a metal plate material, for example,
It is fixed to the frame 105 by means such as welding.
The second plate-shaped portion 132 has the second locking hole 102.
The illustrated second hooking hole 102 has an L-shape. More specifically, the second hooking hole 102 has a hole portion a1 extending in the up-down direction in FIG. 2 and a bent portion b1 at the lower end of the hole portion a1. The bent hole portion b <b> 1 is directed in a direction to increase the interval between the first hook hole 101 and the second hook hole 102.

In the illustrated embodiment, each of the first and second plate portions 131 and 132 connects the third frame portion 130 and the fourth frame portion 140. More specifically, both ends of each of the first and second plate portions 131 and 132 are fixed to the third frame portion 130 and the fourth frame portion 140 by means such as welding, for example. I have. Furthermore, the first
Are joined to the first frame portion 110 by means such as welding, and the side edges of the second plate portion 132 are
It is joined to the second frame 120 by means such as welding. The first and second plate portions 131 and 132 further include:
It has holes 135 and 136 in the plane. Hole 135, 136
Extend in the vertical direction in the figure.

As described above, in the protective device according to the present invention, the frame body 105 includes the first to fourth frame portions 110 to 14.
Has zero. The first and second frame portions 110 and 120 are arranged to face each other with an interval therebetween. The third and fourth frame portions 130 and 140 are disposed to face each other with a space therebetween, and each of the third and fourth frame portions 130 and 140 has a first frame portion 110 and a second frame portion 1.
20. Therefore, the frame 1 having high mechanical strength
05 is obtained.

In the embodiment, the first frame portion 110 and the third
The first plate-like portion 131 is provided near the joint with the frame 130.
Is provided. Further, the second frame 120 and the third frame 1
A second plate-shaped portion 132 is provided near a portion where the second plate-shaped portion 30 is connected. For this reason, the mechanical strength of the frame 105
And the second plate-like portions 131 and 132 are further strengthened.

Further, the first plate-shaped portion 131 is provided with the first locking hole 101, and the second plate-shaped portion 132 is provided with the second locking hole 102. Therefore, when the protective device of the present invention is used for a scaffolding device,
The protective device is lifted with the frame 140 side of
By using the hooking hole 101 and the second hooking hole 102, it is possible to hook the hooking portion provided on the scaffolding device. Such an operation can be performed on a scaffold cloth board with a normal scaffolding device. Therefore, the operation of attaching the protective device can be performed safely and easily.

In the embodiment, since the first and second plate-like portions 131 and 132 have holes 135 and 136 in the plane, the overall weight is reduced.

Further, in the protection device of the present invention, the protection member 1
50 is provided in the internal space surrounded by the frame 105 and fixed to the frame 105. Therefore, by mounting the protection device of the present invention near the eaves of the roof, the fall of the worker from the roof can be prevented by the protection member 150 of the protection device. Therefore, the safety of the worker on the roof is ensured.

In the case of the embodiment, since the protective member 150 is formed of an expanded mesh, the protective member 150 prevents the falling of building materials or work tools from the roof. Therefore, the safety of a person (mainly a worker) located at a position lower than the roof is improved.

Moreover, since the protection member 150 is formed of an expanded mesh, the overall weight of the protection device can be reduced and the wind pressure applied to the protection member 150 can be reduced. For this reason, the work load of the worker is reduced,
Even if it receives a strong wind, the sway of the protective device can be reduced.

The embodiment shown in FIGS. 1 and 2 further includes a reinforcing member 170. The reinforcing member 170 traverses the space surrounded by the frame 105, and both ends are fixed to the frame 105. With such a reinforcing member 170, the frame 105
Can be increased in mechanical strength. Reinforcement member 17
0 is provided in the embodiment, and two are provided.
The inner space surrounded by the frame 105 is obliquely traversed, and both ends are formed in the fourth frame 140 and the third frame 130.
Fixed by welding. However, the number and arrangement of the reinforcing members 170 are not limited to the illustrated embodiment. The reinforcing member 170 used in the embodiment is a so-called angle material having an L-shaped cross section, but the shape is not limited.

In the illustrated embodiment, the protective member 150 is provided together with the reinforcing member 170.
The protective member 150 can also be used. In this case, since the reinforcing member 170 serves as a protection member, the protection member 150 can be omitted.

The mode of use of the protective device according to the invention, and
The effects will be described in more detail in a scaffold device described later.

<Pipe Apparatus> FIG. 3 is a view showing a preferred embodiment of a pipe apparatus according to the present invention, FIG. 4 is an enlarged sectional view of a portion surrounded by a dashed line circle in FIG. 3, and FIG. 5 is shown in FIG. FIG. 6 is an enlarged view showing a first hooking portion included in the pipe device shown in FIG. 6, and FIG. 6 is an enlarged view showing a support portion included in the pipe device shown in FIG.

The illustrated pipe device comprises a first pipe section 2.
10 and a second pipe section 220. The first pipe portion 210 has an inner diameter d1 and an outer diameter d3, and the second pipe portion 220 has an inner diameter d2 and an outer diameter d4, as shown in FIG. Outer diameter d3 of first pipe section 210
Is slightly smaller than the inner diameter d2 of the second pipe section 220.
One end of the first pipe section 210 is connected to the second pipe section 220.
Are partially inserted into each other, and are connected to each other at points W1 and W2 by means such as welding. W1 point is
A hole is made in the second pipe portion 220 and welded inside the hole. The first pipe section 210 has the same outer diameter and inner diameter as a pipe normally used as a vertical pipe in a scaffold device.

The inner diameter d2 of the second pipe portion 220 is slightly larger than the outer diameter of the conventional vertical pipe. Therefore, the second pipe section 220 can be attached to a conventional vertical pipe. At the lower end (in the figure) of the second pipe section 220,
A clamp 300 is provided for tightening a vertical pipe serving as a scaffold pipe.

The pipe device shown in FIG. 3 further has a structure for supporting the protection device according to the present invention and a structure for connecting a fall prevention bar. The structure for supporting the protective device includes a first hook 410 and a support 42.
0 is included. Referring to FIG. 5 together with FIG. 3, the first hooking portion 410 is formed such that an intermediate portion of the face plate 414 is the first pipe portion 2.
It is fixed to 10. As the fixing means, welding is employed. The first hook 410 has two gravity locks 415 and 416. Gravity Rock 41
5 and 416 are provided upright on a face plate 414 projecting from both sides of the first pipe section 210. Gravity locks 415 and 416 have stoppers 417 and 418.

The gravity lock 415 is locked in a first locking hole 101 provided in one of two adjacent protective devices, and the gravity lock 416 is provided in a first lock hole provided in the other of the protective devices. It is hooked on the second hook hole 102.

Next, the support portion 420 is connected to the first hook 41
It is fixed to the first pipe section 210 at an interval from zero. As the fixing means, welding is employed. Referring to FIG. 6 in conjunction with FIG. 3, the support portion 420 has two receiving portions 425 and 426. Receiving parts 425, 426
Are provided on both sides of the first pipe section 210 at an interval from each other. The receiving portion 425 receives one lower end of one of the two protective devices disposed adjacent to each other, and receives the receiving portion 426.
Receives the other lower end of two protective devices arranged adjacent to each other.

The receiving portions 425 and 426 are opened on the upper surface and side surfaces into which the protective device is inserted, and the other side surfaces are constituted by face plates 421 to 423 and 427 to 429. To facilitate the insertion of the protective device, the front plates 421, 427 are attached to the rear plates 422, 428 behind them.
And notches C1 and C2 in part.

Next, the structure for connecting the fall prevention bar includes a second hook portion 510. Second hook 510
Has basically the same structure as the first hooking portion 410 shown in FIG. 5 and is fixed to the tip of the first pipe portion 210. Referring to FIG. 3, the second hook 510 includes
The first hook portion 410 is fixed to the first pipe portion 210 at an appropriate interval. As fixing means,
Welding or the like is employed. The second hook 510 has two gravity locks 515 and 516. The gravity locks 515 and 516 are provided on a face plate 514 protruding from both sides of the first pipe section 210 so as to stand at an interval from each other. The gravity locks 515 and 516 have stoppers 517 and 518. Gravity Rock 51
5 is hooked to one of two adjacent falling prevention bars. The gravity lock 516 is engaged with the other of the two fall prevention bars disposed adjacent to each other.

<Scaffold Apparatus> FIG. 7 is an enlarged front view of a scaffold apparatus including the pipe apparatus according to the present invention. In FIG. 7, two pipe devices 20A and 20B are shown.
In the pipe device 20A, the lower end of the second pipe 220 is inserted into the upper end of a vertical pipe 50A serving as a scaffold pipe. In the pipe device 20B, the lower end of the second pipe 220 is inserted into the upper end of a vertical pipe 50B serving as a scaffold pipe. The pipe devices 20A and 20B are fixed to the vertical pipes 50A and 50B by the clamp 300.

The vertical pipes 50A and 50B are arranged vertically and have equal lengths L1 and L2 (L1 = L2). When the ground on which the vertical pipes 50A and 50B are installed has unevenness, a height difference hd1 is generated between the vertical pipes 50A and 50B due to the unevenness of the ground. This height difference hd
Due to 1, a height difference hd2 occurs at the upper end of the uppermost vertical pipe connected to the vertical pipes 50A and 50B, and the appearance is impaired.

Conventionally, a jack was installed on the ground, the lowermost end of the vertical pipe was received by the jack, and the position of the lowermost end of the vertical pipe was adjusted by adjusting the jack to adjust the height of the tip. For this reason, a large amount of labor was required for the height adjustment work of the vertical pipe. In addition, in the scaffold assembling work, work such as preparation, installation and adjustment of the jack was indispensable.

On the other hand, the pipe device 2 according to the present invention
0A and 20B, the inner diameter d2 of the second pipe portion 220
However, since it is slightly larger than the outer diameter of the vertical pipe 50, it is only necessary to insert the second pipe portion 220 of the pipe device 20A, 20B at the upper end of the vertical pipe 50A, 50B.

Normally, in a scaffold device, at a predetermined height position,
For example, it is common to connect a horizontal pipe 60 serving as a handrail member. The horizontal pipe 60 is a vertical pipe 50A-50.
The same horizontal position is maintained between B. The length L3 of the pipe devices 20A, 20B is the same. Therefore, when the lower end edge of the second pipe portion 220 abuts against the horizontal pipe 60, the tips of the pipe devices 20A and 20B, that is, the tips of the first pipe portion 210 are aligned at the same horizontal position.

Therefore, since the installation locations of the vertical pipes 50A and 50B are uneven terrain with irregularities, the vertical pipes 50A and 50B
Even when the heights of the upper ends of the respective pipes 50B are different, the pipe device 20 can be easily operated by simply inserting the second pipe 220 into the upper ends of the vertical pipes 50A and 50B.
The heights at the uppermost ends of A and 20B can be aligned at the same horizontal height position. Unlike the past, there is no need to adopt a structure that receives the bottom end of the vertical pipe by a jack installed on the ground, and adjust the jack to adjust the position of the bottom end of the vertical pipe and adjust the height of the pipe tip No need. For this reason, the scaffold assembling work becomes extremely easy.

FIG. 8 is a perspective view showing a part of the scaffold device according to the present invention. The scaffolding device is arranged adjacent to a wall of a building (house). The scaffolding device shown is a protective device 1
0A, 10B and pipe devices 20A, 20B, 20C. The protection devices 10A and 10B are shown in FIGS.
The protection device according to the present invention shown in FIG.
Reference numerals 0A, 20B, and 20C denote pipe devices according to the present invention shown in FIGS. These numbers are arbitrary.

The illustrated scaffolding apparatus further includes three vertical pipes 50A to 50C, a horizontal pipe 60, a scaffold cloth board 70A,
70B, brackets 40A to 40C, and fall prevention bars 80A and 80B. Bracket 40A ~
40C is fixed to each of the three vertical pipes 50A to 50C, and both ends of the scaffold cloth boards 70A and 70B are hooked and supported by brackets 40A to 40C. On the building side, the vertical pipes 51, 51 are respectively arranged at positions facing the vertical pipes 50A, 50C. Bracket 40A fixed to vertical pipes 50A, 50C,
The 40C is also connected and fixed to the vertical pipes 51, 51.

As described above with reference to FIG. 17, the heights H21 up to the eaves 31 of the scaffold cloth plates 70A and 70B are one.
It is installed at a position of 600 to 1800 mm.

The horizontal pipe 60 is fixed as a handrail member to each of the vertical pipes 50A to 50C by a clamp at an appropriate distance H22 from the scaffold cloth boards 70A and 70B. The interval H22 is set to about 900 mm, as described with reference to FIG. The horizontal pipe 60 maintains substantially the same horizontal position in the vertical pipes 50A to 50C.

The lower ends of the pipe devices 20A to 20C are positioned by the horizontal pipe 60, and are fixed to the vertical pipes 50A to 50C by the clamp 300. As described above, the pipe devices 20A to 20C each have a roof 3
At the position higher than the eaves 31 of the same eave 31.

Further, since the lower ends of the pipe devices 20A and 20B are positioned at the same horizontal position,
Between 0A and the pipe device 20B, the horizontal height positions of the first hooking section 410, the second hooking section 510, and the support section 420 coincide with each other.

The protection devices 10A and 10B have eaves 31 at the lower end.
It is almost the same or slightly lower than
At a position higher than 1, the space W21 generated between the vertical pipes 50A to 50C is covered. The interval W21 is
Usually, it is set to 1800 mm, so that the protective device 10
A and 10B have lengths slightly shorter than 1800 mm.

The protection device 10A is provided with the first
The first and second hook holes 101 and 102 (see FIGS. 1 and 2) are provided on the first hook portion 4 provided in the pipe device 20A.
10 and a first hook 410 provided on the pipe device 20B. As described with reference to FIG. 3 and FIG. 5, the first hooking section 410 has the gravity locks 415 and 416, so that the gravity locks 415 and 416 are connected to the first hooking holes 101 and After entering the inside of the second hook hole 102, the stopper 417,
The retaining function by 418 works.

Further, the lower end of the protection device 10A is supported by a support portion 420 provided on the pipe device 20A and a support portion 420 provided on the pipe device 20B.

The above-mentioned gravity locks 415 and 416
The protective device 10A is stably held between the pipe devices 20A and 20B even when it receives a strong wind by the retaining function of the support device 420 and the receiving action of the support portion 420.

Further, the pipe device 20A and the pipe device 2
0B, the first hook portion 410 and the support portion 42
Since the 0 horizontal height positions coincide with each other, the protective device 10
A is installed without tilting. Protection device 10B
Is also supported by the pipe devices 20B and 20C by the same latching support structure as the protection device 10A.

As described above, the scaffold cloth boards 70A, 70B
Has a height H21 from 1600 to 1800 mm up to the eaves 31
, The protection devices 10A, 10B
Has a lower edge whose height H21 is higher than that of the scaffold cloth boards 70A and 70B.
(= 1600-1800 mm).

The fall prevention bars 80A, 80B are arranged above the protective devices 10A, 10B with a space therebetween, and both ends are hooked on second hooks 510 provided in the pipe devices 20A to 20C. Have been. Second hook 510
Has the gravity locks 515 and 516, so that the stoppers 517 and 518 of the gravity locks 515 and 516 can also be used for the fall prevention bars 80A and 80B.
(See FIG. 3).

Further, since the lower ends of the pipe devices 20A and 20B are positioned at the same horizontal position,
Between 0A and the pipe device 20B, the horizontal height positions of the second hooks 510 coincide with each other. Therefore, the fall prevention bars 80A and 80B are set at the same horizontal position. Such an arrangement is an aesthetically preferable arrangement.

The fall prevention bars 80A and 80B are shown in FIG.
As described with reference to, the height H23 from the scaffold cloth boards 70A, 70B is attached at a position such that the height H23 is in a range of 2500 to 2700 mm. Pipe device 20A-2
0C, the interval between the vertical pipes 50A to 50C coincides with the interval W21.
A and 80B are slightly shorter than 1800 mm.

In the scaffolding device shown in FIG.
Protective devices 10A and 10B according to the present invention are mounted near the device. Therefore, the fall of the worker from the roof 3 can be prevented by the protection devices 10A and 10B. Therefore, the safety of the worker on the roof 3 is ensured.

Further, the protective device 1 shown in FIGS.
0A and 10B are protective members 1 made of expanded meshes
Since it has 50, the fall of building materials or work tools from the roof 3 is prevented by the protective devices 10A and 10B. Therefore, the safety of a person (mainly a worker) located at a position lower than the roof 3 is improved.

Next, the protective devices 10A, 10A
By the combination of B and the pipe devices 20A to 20C,
Various advantages are obtained when constructing the scaffolding device.
Next, this point will be described with reference to the scaffold assembly process shown in FIGS.

First, referring to FIG. 9, the vertical pipe 50A
Brackets 40A to 40C are fixed to the brackets 40A to 40C.
Is hung. Also, vertical pipes 50A to 50B
Is, for example, 900 m from the scaffold cloth boards 70A and 70B.
A horizontal pipe 60 serving as a handrail member is positioned at a height H22
Are fixed by clamps.

Further, pipe devices 20A, 20B are inserted into the vertical pipes 50A, 50B. Pipe device 2
0A and 20B are positioned at the lower ends by the horizontal pipes 60, and are clamped by the vertical pipes 50A and 50B.
B is fixed. As described above, the pipe devices 20A and 20B have their tips aligned at the same horizontal position. In addition, since the lower ends of the pipe devices 20A and 20B are positioned at the same horizontal position, the first hooking portion 410 is provided between the pipe devices 20A and 20B.
The horizontal height positions of the second hooking part 510 and the support part 420 coincide with each other.

[0086] Both ends of the fall prevention bar 80A are hooked to the second hooks 510, 510 of the pipe devices 20A, 20B. In addition, one end of the bar 80B for drop prevention is hooked on the second hook 510 of the pipe device 50B.

The second hooking portion 51 from the scaffold cloth plate 70A or 70B to which the fall prevention bar 80B is attached.
The height H23 to 0 is in the range of 2500 to 2700 mm, whereas the length of the fall prevention bar 80B is about 180.
Since it is 0 mm, when engaging the work of locking the fall prevention bar 80B, the worker rides on the tread surface of the scaffold cloth plate 70A or 70B and holds the fall prevention bar 80B with the feet stable. One end can be hooked on the second hook 510 of the pipe device 50B. Therefore, the work of attaching the fall prevention bar 80B is safe and
Can be easily implemented. Although not shown, the work of attaching the fall prevention bar 80A is the same as the work of installing the fall prevention bar 80B.
And it can be easily executed.

FIG. 10 is a view showing an assembling step following the assembling step shown in FIG. In the assembly process shown in FIG. 10, the other end of the fall prevention bar 80B is connected to the pipe device 20.
C is hooked on a second hook 510 provided on C. Thereafter, the worker lifts the pipe device 20C, inserts the lower end of the pipe device 20C into the tip of the vertical pipe 50C, further tightens the clamp 300, and moves the pipe device 20C.
Is fixed to the vertical pipe 50C. Since these operations can also be performed on the scaffold cloth board 70B, the operations can be performed safely and
Can be easily implemented. Although not shown, the pipe devices 20A and 20B are also inserted into the vertical pipes 50A and 50B through the same assembly process as the pipe device 20C.
The work can be performed safely and easily.

FIG. 11 is a view showing an assembled state obtained through the assembling process shown in FIG. Pipe device 20C
Since the lower end is positioned by the horizontal pipe 60, its tip is located at the tip of the pipes 20A and 20B.
They are arranged so as to be aligned at the same horizontal position. Therefore, the tip ends of the pipe devices 20A to 20C are aligned at the same horizontal position.

FIG. 12 is a view showing an assembling process in which the protection device 10A is hung on the pipe devices 20A and 20B in the assembly shown in FIG. As already described with reference to FIGS. 1 and 2, the protection device 10 </ b> A has the first locking hole 101 provided in the first plate-like portion 131 and the second plate-shaped portion 132 Are provided. Therefore,
When attaching the protection device 10A to the pipe devices 20A and 20B, the worker raises the protection device 10A with the fourth frame portion 140 side of the frame body 105 as the lower side, and the first locking hole 101 and the second The protection device 10A is connected to the first locking portions 41 of the pipe devices 20A and 20B by using the locking holes 102 of the pipe device 20A.
It may be hung on 0, 410.

From the scaffold cloth plates 70A, 70B, the protective device 1
Height H24 up to the first hook portion 410 for hooking 0A
Is the height H23 up to the second hooking portion 510 (2500 to 2500).
2700 mm). Moreover, the length of the protection device 10A is about 1800 mm. In consideration of such a dimensional relationship, in engaging with the protection device 10A, the worker rides on the tread surface of the scaffold cloth plate 70A or 70B, holds the protection device 10A with the feet stable, and holds the protection device 10A. 10A to the first hook 4 of the pipe device 20A, 20B.
Obviously, it is possible to hang on 10,410. Therefore, the operation of attaching the protection device 10A can be performed safely and easily.

FIGS. 13 to 15 show pipe devices 20A and 20A.
It is a figure which shows the latching operation of 10 A of protective devices with respect to B.
First, as shown in FIG.
The protective device 10A is lifted with the 40 side as the lower side,
Is hooked on the gravity lock 415 of the pipe device 20A, and the second hook hole 102 is hooked on the gravity lock 416 of the pipe device 20B.

The first latching hole 101 has an elongated hole shape. In the figure, the lower end hole width ΔD1 is equal to the upper end hole width ΔD.
When the first hooking hole 101 is hung on a pin or the like, the pin can be passed through the lower side of the large hole width ΔD1 to easily execute the hooking operation. Thereafter, the pin moves upward, which is smaller than the hole width ΔD2, so that it is possible to prevent lateral swing around the pin.

Next, as shown in FIG.
A is lifted upward as indicated by arrow F1. Then, the fourth frame portion 140 of the protection device 10A is positioned directly above the support portion 420 of the pipe device 20A and the support portion 420 of the pipe device 20B, and is dropped into the support portion 420. FIG. 15 shows the fourth frame 140 of the protection device 10A,
The assembled state after dropping into the support parts 420 and 420 is shown. The worker can execute a series of latching operations shown in FIGS. 12 to 15 on the scaffold cloth board 70A. Therefore, the protection device 10A can be safely and easily hooked to the pipe devices 20A, 20B.

FIG. 16 is a perspective view of the scaffolding device obtained through the hooking step shown in FIGS. Thereafter, in the pipe devices 20B and 20C, the locking process shown in FIGS. 12 to 15 is executed to lock the other protection device 10B. Thereby, the scaffold device shown in FIG. 8 is obtained.

In order to remove the hung protection device 10A, the fourth frame 140 side of the frame 105 is supported, and
It is only necessary to release the locked state of the protective device by using the locking holes 101 and the second locking holes 102. As described with reference to FIG. 2, the second hooking hole 102 has the hole portion a1 extending in the up-down direction and the hole portion b1 which is bent at a substantially right angle at the lower end of the hole portion a1. The hole portion b1 is
It is in the direction of increasing the distance between the first hooking hole 101 and the second hooking hole 102. Therefore, first, the protection device 10A is lifted upward, passes through the hole portion b1 of the second latching hole 102, and passes through the stopper 4 of the gravity lock 416.
18 (see FIG. 5), and the second frame 120 side of the protective device 10A is removed. Next, the second frame 1 of the protective device 10A
20 is rotated downward, and the stopper 4 of the gravity lock 415 is
17 (see FIG. 5), and the protective device 10A is extracted.
Since the operation of removing the protection device 10A can also be performed on the scaffold cloth plate 70A or 70B, the operation can be performed safely and quickly.

In FIGS. 8 to 16, a part of the scaffolding device is extracted and shown. Therefore, the protective device, the pipe device, the vertical pipe, the scaffold cloth board, the bracket, the horizontal pipe, the bar for preventing falling, and the like are limited. It is shown as the number. It goes without saying that the scaffolding device as a whole is not such a limited number. It is also obvious that, even if the number of these components or devices increases, the assembling process is a repetition of the process described with reference to FIGS.

[0098]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a scaffolding protection device and a scaffolding device using the protection device, which can safely and easily execute the attachment / detachment work to the scaffold pipe. (B) It is possible to provide a scaffolding protection device and a scaffolding device that are effective in preventing a worker from falling off the roof and also preventing work tools and building materials from falling from the roof. (C) It is possible to provide a scaffolding protection device and a scaffolding device capable of ensuring the safety of a person at a position lower than the roof. (D) It is possible to provide a scaffold pipe device that can make the heights of the scaffold pipes uniform by a simple insertion operation without providing a jack at the lowermost end of the scaffold pipe.

[Brief description of the drawings]

FIG. 1 is a perspective view of a protective device according to the present invention.

FIG. 2 is a front view of the protection device shown in FIG. 1;

FIG. 3 is a view showing a preferred embodiment of a pipe device according to the present invention.

FIG. 4 is an enlarged sectional view of a portion surrounded by a dashed line circle in FIG. 3;

FIG. 5 is an enlarged view showing a first hook portion included in the pipe device shown in FIG. 3;

FIG. 6 is an enlarged view showing a support part included in the pipe device shown in FIG. 3;

FIG. 7 is an enlarged front view of a scaffolding device including a pipe device according to the present invention.

FIG. 8 is a perspective view showing a part of the scaffold device according to the present invention.

FIG. 9 is a view showing a scaffold assembling process using the protective device and the pipe device according to the present invention.

FIG. 10 is a view showing a step after the step shown in FIG. 9;

FIG. 11 is a view showing an assembled state obtained through the assembling process shown in FIG. 10;

FIG. 12 is a view showing an assembling step of hooking a protection device on a pipe device in the assembly shown in FIG. 11;

FIG. 13 is a view showing a step of engaging the protection device with the pipe device.

FIG. 14 is a view showing a step after the step shown in FIG. 13;

FIG. 15 is a view showing a step after the step shown in FIG. 14;

FIG. 16 is a perspective view showing a scaffold device obtained through the steps of FIGS.

FIG. 17 is a diagram illustrating a conventional scaffold device and its problems.

[Explanation of symbols]

 110 1st frame part 120 2nd frame part 130 3rd frame part 140 4th frame part 101 1st latching hole 102 2nd latching hole

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukio Harada 1-7-4 Nakasone, Yoshikawa-shi, Saitama

Claims (13)

[Claims] 1. A frame, a protection device, a first plate-shaped portion,
A scaffolding protection device including a second plate-shaped portion, wherein the frame body includes a first frame portion, a second frame portion, a third frame portion, and a fourth frame portion. The first and second frame portions are arranged to face each other at an interval, and the third and fourth frame portions are arranged to face each other at an interval. Connecting the first frame portion and the second frame portion, wherein the protection member is disposed in an internal space surrounded by the frame body and fixed to the frame body; Has a first latching hole, is provided near a joint between the first frame portion and the third frame portion, and the second plate-shaped portion has a second latching portion. A scaffolding protection device having a stop hole and provided near a joint between the second frame portion and the third frame portion. 2. The scaffold protection device according to claim 1, further comprising at least one reinforcing member, wherein the reinforcing member traverses the internal space and is fixed to the frame. Protective equipment. 3. The scaffolding protection device according to claim 2, wherein the reinforcing member is also used as the protection member. 4. The scaffolding protection device according to claim 1, wherein each of the first and second plate-like portions has a hole in a plane, and A scaffolding protection device for connecting the frame portion of the second embodiment with the fourth frame portion. 5. The scaffolding protection device according to claim 1, wherein at least one of the first hooking hole and the second hooking hole has an L-shape. Scaffolding protection device with a. 6. A scaffold pipe device including a first pipe portion and a second pipe portion, wherein one end of the second pipe portion is coupled to one end of the first pipe portion, A scaffold pipe device having an inner diameter larger than an outer diameter of the first pipe portion. 7. The scaffold pipe device according to claim 6, further comprising: a first hook portion and a support portion, wherein the first hook portion is the first pipe. A scaffold pipe device fixed to the first pipe portion, wherein the support portion is fixed to the first pipe portion at an interval from the first hook portion. 8. The scaffold pipe device according to claim 7, further comprising a clamp, wherein the clamp is fixed to the other end of the second pipe portion. 9. The scaffold pipe device according to claim 7, further comprising a second hook portion, wherein the second hook portion is the first pipe. Scaffold pipe device fixed to the part. 10. A scaffolding device including at least two vertical pipes and a protective device, wherein the vertical pipes are installed in a vertical direction with respect to the ground, each of which has a hook portion, The protection device is one according to any one of claims 1 to 5, wherein the first locking hole of the protection device is the locking portion of one of the two pipe devices. The scaffolding device, wherein the second hooking hole of the protection device is hooked on the hooking portion of the other one of the two pipe devices. 11. A scaffolding device including a vertical pipe and a pipe device, wherein the vertical pipe is installed in a vertical direction with respect to the ground, and the pipe device is any one of claims 6 to 9. The scaffolding device as described above, wherein the second pipe portion is inserted into an upper end of the vertical pipe. 12. The scaffolding device according to claim 11, further comprising at least one protection device, wherein the protection device is as defined in any one of claims 1 to 5, There are at least two pipe devices, each having a hook portion, wherein the first hook hole of the protection device is the hook portion of one of the two pipe devices. A scaffolding device that is hung on a stop portion, wherein the second hooking hole of the protection device is hung on the hooking portion of the other one of the two pipe devices. 13. The scaffolding device according to claim 12, wherein the pipe device is the one according to any one of claims 7 to 9, wherein the protection device is the first frame portion. A portion where the second frame portion and the fourth frame portion are connected to each other is supported by the support portion of the one pipe device; and a portion where the second frame portion and the fourth frame portion are connected to each other, A scaffolding device supported by the support of the other pipe device.