JP2002013291A - Scaffolding fabric board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffolding fabric board capable of being laid even in a narrow work area and securing safety when one walks on the fabric board. SOLUTION: A first latching means 31 is provided on the side of a first long side 121 in a first short side 111 of a frame body 1, and a second latching means 32 is provided on the side of a second long side 122. When the interval between the extension line of the first long side 121 and the first latching means 31 is D1, and the interval between the extension line of the second long side 122 and the second latching means 32 is D2, D1>D2 is satisfied. A third latching means 33 is provided on the side of the first long side 121 in a second short side 112 of the frame body 1, and a fourth latching means 34 is provided on the side of the second long side 122. When the interval between the extension line of the first long side 121 and the third latching means 33 is D3, and the interval between the extension line of the second long side 122 and the fourth latching means 34 is D4, D3>D4 is satisfied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a scaffold cloth board.

[0002]

2. Description of the Related Art In construction work, for example, scaffolds are installed in a narrow area sandwiched between two buildings or in a narrow area sandwiched between a boundary between an adjacent land and a building. There are things you need to do. As a scaffold suitable for such a use, a so-called "carrying scaffold" has been conventionally known. The holding scaffold arranges two horizontal pipes in parallel with each other across the vertical pipe, and fixes the vertical pipe and the two horizontal pipes by a fixing means called a triple clamp. The worker walks on two horizontal pipes. The width of the holding scaffold can be suppressed to a value slightly larger than three times the pipe diameter, and can be adapted to a narrow working area.

[0003] However, on the holding scaffold, it is necessary to walk sideways on two horizontal pipes. For this reason, it is easy to lose balance or slip, and it is not possible to ensure the safety of workers.

[0004] In addition, in a hugging scaffold, when passing through a vertical pipe between two horizontal pipes, it is necessary to walk sideways with the vertical pipe as a core. For this reason, when passing through a vertical pipe, there is a risk of losing balance or slipping, and in the worst case, falling. Furthermore, when the gap between the vertical pipe and the adjacent building is narrow, a situation may occur in which an operator cannot pass through the gap. That is, the function as a scaffold may not be secured.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a scaffold cloth board capable of constructing a safe scaffold even in a narrow area.

Another object of the present invention is to provide a scaffold cloth board capable of constructing a highly safe scaffold capable of normal walking instead of sidewalking.

[0007]

In order to solve the above-mentioned problems, a scaffold cloth board according to the present invention includes a frame, a tread plate, and at least four hooking means.

[0008] The frame has a first side, a second side, a third side, and a fourth side. The first and second sides face each other. The third and fourth sides are disposed at both ends of the first and second sides, and face each other. The tread plate is attached to the frame.

The first latching means is provided near the first side on the third side. The second locking means is
The third side is provided near the second side. The distance between the extension of the first side and the first latching means is D1, and the distance between the extension of the second side and the second latching means is D2. When D1> D
Meet 2.

[0010] The third latching means is provided on the fourth side near the first side. The fourth locking means is
The fourth side is provided near the second side. The distance between the extension of the first side and the third hooking means is D3, and the distance between the extension of the second side and the fourth hooking means is D4. When D3> D
Meet 4.

In the scaffold cloth board of the present invention, first and second hooking means are provided on the third side of the frame, and
Since the third and fourth hooking means are provided on the fourth side opposite to the side of, the bracket is attached to the vertical pipe, and the first to fourth hooking means are hooked on the bracket. Can be. This means that in the middle of the width direction of the scaffold cloth board,
This means that there is no need to install vertical pipes. Therefore, unlike the hugging scaffold, there is no need for physical operations such as turning around the vertical pipe. For this reason, safety is enhanced.

Since the frame is provided with a tread plate,
The worker can walk on the surface of the tread plate in a normal walking state. Therefore, unlike a hugging scaffold, it is not necessary to take a dangerous walking form such as sidewalking, so that safety is significantly improved.

The distance D1 between the extension of the first side and the first latching means is greater than the distance D2 between the extension of the second side and the second latching means. . The distance D3 between the extension of the first side and the third hooking means is larger than the distance D4 between the extension of the second side and the fourth hooking means. This is equivalent to the fact that the width of the tread plate generated between the first side and the second side is expanded toward the first side with a large interval. For this reason, the width of the tread plate used for walking of the worker is increased, and the safety of the worker is further improved.

Other features of the present invention and the operation and effect thereof will be described in more detail with reference to the accompanying drawings which are embodiments. The accompanying drawings are merely illustrative.

[0015]

FIG. 1 is a plan view of an embodiment of a scaffold cloth according to the present invention, and FIG. 2 is a partially enlarged perspective view of the scaffold cloth shown in FIG. As illustrated, the scaffold cloth board according to the present invention includes a frame body 1, a tread board 2, and first to fourth locking means 31 to 34.

The frame 1 has a first side 121 and a second side 1
22, a third side 111, and a fourth side 112. In the illustrated embodiment, the first side 121 and the second side 122 are long sides, and the third side 111 and the fourth side 11
2 is a short side.

The first side 121 and the second side 122 are
Facing each other. The third side 111 is disposed on one end side of the first and second sides 121 and 122, and the fourth side 112
Is disposed on the other end side of the first and second sides 121 and 122. The third side 111 and the fourth side 112 face each other. The frame 1 is made of a metal material.

The first side 121 and the second side 122 are outermost sides in the width direction of the frame 1. In the embodiment, the width of the frame 1 as viewed in the width direction is 150 mm to 2 mm.
00 mm, but is not limited to this range.

In the illustrated frame 1, one end of the third side 111 and one end of the first side 121 are connected to each other to form a first corner C1. The other end of the third side 111 and one end of the second side 122 are connected to each other and
Is formed. One end of the fourth side 112 and the other end of the first side 121 are connected to each other to form a third corner C3. The other end of the fourth side 112 and the other end of the second side 122 are connected to each other to form a fourth corner C4.
Is composed.

The tread plate 2 is arranged on the frame 1. The outer shape of the tread plate 2 corresponds to the shape of the frame 1 and has a rectangular shape, a square shape, or a modified shape thereof. The tread plate 2 is made of a metal material. The tread plate 2 has a mesh shape in which a large number of holes are distributed to reduce the weight or prevent slippage. Such a tread 2 is typically formed of a metal net. The tread plate 2 is fixed to the frame 1 by means such as welding, and has sufficient strength to support the weight of the worker.

The first hooking means 31 is provided on the third side 111 at a position deviated in the direction of the first side 121. The second hooking means 32 is provided on the third side 111 side at a position deviated in the direction of the second side 122.

More specifically, as shown in an enlarged manner in FIG. It is fixed to the first side 121 by a coupling means such as a nut, a rivet, or welding, and is provided so as to protrude from the third side 111. Second
Of the bolt. It is fixed to the second side 122 by a coupling means 9 such as a nut, a rivet or welding,
It is provided so as to protrude from the third side 111. The first and second hooking means 31, 32 are made of a metal material.

The first latching means 31 is constituted by a hook. Specifically, the first hooking means 31 has a fixed piece 311 and a movable piece 312. The fixing piece 311 is
It is fixed to the first side 121. The movable piece 312 is rotatably connected to the fixed piece 312.

The second hooking means 32 is also constituted by a hook, and has the same configuration as the first hooking means 31 described above. That is, the second hooking means 32 also includes the fixing piece 321.
And a movable piece 322. The fixing piece 321 is fixed to the second side 122. The movable piece 322 is a fixed piece 3
21 is rotatably connected.

Next, in FIG. 1, the distance between the extension of the first side 121 and the first hooking means 31 is D1,
The distance between the extended line 122 of the second side and the second hooking means 32 is D2. First and second locking means 31, 3
2 are arranged so as to satisfy the interval D1> the interval D2. The interval D1 is at most the vertical pipe diameter (48.6
mm). In the illustrated embodiment, the distance D1 is about 35 mm and the distance D2 is about 18 mm.

The third hooking means 33 is provided on the side of the fourth side 112 at a position deviated in the direction of the first side 121. The fourth latching means 34 is provided on the side of the fourth side 112 at a position deviated in the direction of the second side 122. The specific structure of the third hooking means 33 and the fourth hooking means 34 is the same as that of the first hooking means 3 described with reference to FIG.
It is almost the same as the first and second hooking means 32.

In FIG. 1, the distance between the extension of the first side 121 and the third latching means 33 is D3,
Assuming that the distance between the extension line 122 of the side and the fourth hooking means 34 is D4, the first and second hooking means 31, 3
2 are arranged so as to satisfy D3> D4. The interval D3 can be set to the same size as the maximum diameter of the vertical pipe (48.6 mm). In the illustrated embodiment, the interval D3 is about 35.
mm, and the interval D4 is about 18 mm.

FIG. 3 is a perspective view illustrating the use state of the scaffold cloth board shown in FIGS. 1 and 2, and FIG. 4 is a partially enlarged perspective view of the perspective view of FIG. As shown in FIGS. 3 and 4, a bracket 61 is fixed to each of the vertical pipes 71 arranged at intervals. The illustrated bracket 61 includes a pipe connecting means 617, a backing plate member 618, and a receiving portion 61.
And 1. The first pipe connecting means 617 is connected to the vertical pipe 71. The contact plate member 618 abuts on the outer peripheral surface of the vertical pipe 71 to reinforce the mechanical strength.

The receiving portion 611 is hooked on the first and second hooking means 31 and 32 of the scaffold cloth. Receiving part 61
Reference numeral 1 denotes a shape corresponding to the hook-shaped first and second hooking means 31, 32, and more specifically, a straight tubular shape.
Further, the above-mentioned first pipe connecting means 617 and backing plate member 618 are integrally connected to the receiving portion 611. Although not shown in FIG. 4, the third and fourth hooking means 33 and 34 are also hooked on other brackets.

In order to hook the first hooking means 31 on the bracket 61, hold the fixed piece 311 on the receiving portion 611 of the bracket 61 with the movable piece 312 of the first hooking means 31 open. I just need. Second to fourth hooking means 32
The same applies to .about.34. For this reason, it is not necessary to install a vertical pipe in the middle of the width direction of a scaffold cloth board. Therefore, unlike the hugging scaffold, there is no need for physical operations such as turning around the vertical pipe. For this reason, safety is enhanced.

Further, since the frame 1 is provided with the tread plate 2, the worker can walk on the tread plate 2 in a normal walking state. Therefore, unlike a hugging scaffold, it is not necessary to take a dangerous walking form such as sidewalking, so that safety is significantly improved.

The distance D1 between the extension of the first side 121 and the first latching means 31 is the distance D2 between the extension of the second side 122 and the second latching means. Greater than. The distance D3 between the extension of the first side 121 and the third hooking means 33 is the distance D4 between the extension of the second side 122 and the fourth hooking means 34. Greater than. This is equivalent to the fact that the width of the tread plate 2 generated between the first side 121 and the second side 122 is expanded toward the first side 121. For this reason, the width of the tread plate 2 used for walking of the worker is enlarged, and the safety of the worker is further improved.

Next, advantages and the like of the scaffold cloth according to the present invention will be described in more detail with reference to FIGS. In FIGS. 5 and 6, numerical values will be described by way of example, but the numerical values themselves are shown only for concreteness of the description. FIG. 5 is a view for explaining the relationship between the scaffold cloth board and the holding scaffold according to the present invention. FIG. 5A is a plan view showing a part of the holding scaffold.

The holding scaffold is composed of two horizontal pipes P1 and P2.
And one triple pipe P3 and a triple clamp in which three clamps A to C are sequentially connected. As the horizontal pipes P1, P2 and the vertical pipe P3, pipes having an outer diameter of 48.6 mm are usually used. Vertical pipes P3 and 2
Between the two horizontal pipes P1 and P is about 20 (mm) 2 due to the combination of the clamp C and the clamps A and B.
And a clamping protrusion of about 10 (mm) outside each of the transverse pipes P1, P2.

Therefore, the width W11 of the entire holding scaffold is
Is: W11 = 10 + 48.6 + 20 + 48.6 + 20 + 4
8.6 + 10 = 205.8 (mm).

The distance W12 between the two horizontal pipes P1 and P2 is W12 = 20 + 48.6 + 20 = 88.6 (mm). That is, in the case of the holding scaffold, the width W11 of the entire holding scaffold can be reduced to, for example, 205.8 (mm). Of the width W11 = 205.8 (mm),
The interval W12 = 88.6 (mm) is a space and cannot be used as a scaffold. As a result, since the worker has no other choice but to walk sideways on the horizontal pipes P1 and P2, the worker is always at risk of slipping.

In addition, since the vertical pipe P3 is located between the horizontal pipes P1 and P2, the vertical pipe P3
It is necessary to perform physical operations such as turning around 3.
For this reason, when passing through the vertical pipe P3, there is a risk of losing balance or slipping, and in the worst case, falling.

FIG. 5B illustrates a case where the width W21 of the scaffolding cloth is matched with the width W11 of the holding scaffold in the scaffolding apparatus using the scaffolding cloth according to the present invention. That is,
W21 = 205.8 (mm). The worker has a width W2
It is possible to walk over the entire surface of the wide tread plate 2 having 1 = 205.8 (mm) in a normal walking state. Therefore, unlike a hugging scaffold, there is no need to take a dangerous walking form such as sidewalk, and no physical operation such as going around a vertical pipe is required, so that safety is significantly improved. FIG.
(B) shows the case where the width W21 of the scaffold cloth board is maximized, and the extension of the first side 121 coincides with the outer peripheral surface of the clamp 617 provided on the bracket 61. However,
The width W21 can be set to a smaller value.
Needless to say. The width W21 is preferably 170 to 1
It is set in the range of 90 (mm).

FIG. 6 is a view for explaining the relationship between the scaffold cloth according to the present invention and a conventional scaffold cloth. The conventional scaffolding board shown in FIG. 6A is a reduced version of a general scaffolding board in the width direction, and is not actual but is shown for comparison.

In the scaffold cloth shown in FIG. 6A, the distance D1 between the extension of the first side 121 and the first hooking means 31 is the extension of the second side 122. , And the distance D2 between the first and second hooking means 32. The distance D3 between the extension of the first side 121 and the third hooking means 33 is the distance D4 between the extension of the second side 122 and the fourth hooking means 34. And are equal. The width determined by the sum of the width W31 of the scaffold cloth board and the width W41 of the clamp 617 on the vertical pipe 71 is the holding scaffold (FIG. 5).
(See (a))).

As already described with reference to FIG. 5A, the width W11 of the holding scaffold is 205.8 (mm). The clamp 61 attached to the vertical pipe 71
7 is W41 = 10 + 48.6 + 10 = 68.6 (mm). Therefore, within the maximum width of W11 = 205.8 (mm), the width W31 left on the scaffold slab is, at maximum, W31 = W11−W41 = 205.8−68.6 = 137.2 ( mm). Actually, since the scaffolding cloth boards are sequentially hung on the brackets 61, the hooks of two adjacent scaffolding cloth boards on the bracket 61 must be shifted and hooked. Therefore, the width W31 left on the scaffold cloth is
Actually, it is about 110 (mm). Such a scaffold cloth having a small width W31 cannot be put to practical use.

In the scaffold cloth according to the present invention shown in FIG. 6B, the interval D1 is larger than the interval D2, and the interval D3 is larger than the interval D4. This means that the width of the tread plate 2 is enlarged toward the first side 121 in the scaffold cloth board according to the present invention in comparison with the scaffold cloth board illustrated in FIG. Are equivalent. For this reason, the width of the tread plate 2 used for walking of the worker is enlarged, and the safety of the worker is further improved.

The scaffold cloth shown in FIG.
Since 21 is 205.8 (mm), the width W21 is calculated to be greater than the width W31 of the scaffold cloth shown in FIG.
It is enlarged by 68.6 (mm). Actually, the width W31
Becomes about 110 (mm) as described above,
The width W21 is enlarged up to 95.8 (mm) at the maximum.

Further, unlike the embodiment of FIG. 1, five or more latching means may be provided. In this case, the hooking means closest to the first side 121 corresponds to the first hooking means 31 and the third hooking means 33, and the hooking means closest to the second side 122 is the second hooking means. This corresponds to the stopping means 32 and the fourth locking means 34.

FIG. 7 is a plan view of another embodiment of the scaffold cloth according to the present invention, and FIG. 8 is a partially enlarged perspective view of the scaffold cloth shown in FIG. In the figure, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

A feature of this embodiment is that each of the first to fourth hooking means 31 to 34 is formed by a wedge. Referring to FIG. 8, the first and second hooking means 31 and 32 are formed of wedges, and one end of the first and second hooking means 31 and 32 is a third wedge.
Is fixed to the frame 1 by means such as welding, for example. The third and fourth hooking means 33, 34 are also provided with the first and second hooking means 31,
32, and is placed on the fourth side 112 side, and the frame 1 is bolted. It is fixed by coupling means such as nuts, rivets or welding.

FIG. 9 is a partially enlarged perspective view illustrating the use state of the scaffold cloth board shown in FIGS. As shown in FIG. 9, a bracket 61 is fixed to the vertical pipe 71. The bracket 61 is connected to the first pipe connecting means 617.
, A backing plate member 618, a support 615, and four receiving portions 611 to 614. First pipe connecting means 6
17 is connected to the vertical pipe 71. Backing plate member 618
Has a reinforcing effect. The support 615 is fixed to the first pipe connecting means 617 and the backing plate member 618 described above.

Each of the receiving portions 611 to 614 has a function of being hooked on any of the first to fourth hooking means 31 to 34 of the scaffold cloth plate. Each of the receiving portions 611 to 614 has a shape corresponding to the first to fourth hooking means 31 to 34 in the form of a wedge, and is formed by a concave portion. Receiving part 6
11 to 614 are provided on the support 615 described above.

Also in the embodiment shown in FIGS. 7 and 8, the first to fourth hooking means 31 to 34 are hung on the bracket 61 of the vertical pipe 71, so that the scaffold cloth plate is
1 can be fixed to the vertical pipe 71. Specifically, the wedge-shaped second hooking means 31 is hooked on the receiving portion 611 of the bracket 61, and the wedge-shaped second hooking means 32 is hooked on the hooking receiving portion 612 of the bracket 61. . The third and fourth locking means 33 and 34 also perform the same locking operation.

FIG. 10 is a plan view of still another embodiment of the scaffold cloth according to the present invention. In the figure, the same components as those shown in FIG. 1 are denoted by the same reference numerals. The feature of this embodiment is that the first and second hooking means 31, 32 are each constituted by hooks, and the third and fourth hooking means 33, 34 are constituted by wedges.

FIG. 11 is a partially enlarged perspective view showing still another embodiment of the scaffold cloth board according to the present invention, and FIG. 12 is a front view of the scaffold cloth board shown in FIG. In the figure, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

The feature of this embodiment is that the first to fourth locking means 31 to 34 are each constituted by a bar device. A scaffold cloth board equipped with a bar device as a hooking means,
Since it has already been disclosed in Japanese Patent No. 2965547, description of the configuration of the bar device and the operation and effect of the bar device will be omitted.

In each of the embodiments shown in FIGS.
A mutual arrangement relationship between the first and second hooking means 31, 32,
The mutual arrangement of the third and fourth latching means 33 and 34 satisfies the above-described conditions of the present invention. Therefore, FIG.
Each embodiment shown in FIG. 12 has the same operation and effect as the embodiment shown in FIG.

[0054]

As described above, according to the present invention,
The following effects can be obtained. (A) It is possible to provide a scaffold cloth board that can be attached even in a narrow work area. (B) It is possible to provide a scaffold cloth board that can ensure safety when walking on a tread board.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of a scaffold cloth board according to the present invention.

FIG. 2 is a partially enlarged perspective view of the scaffold cloth board shown in FIG. 1;

FIG. 3 is a perspective view illustrating a use state of the scaffold cloth board illustrated in FIG. 1;

FIG. 4 is a partially enlarged perspective view of the perspective view of FIG. 3;

FIG. 5 is a diagram for explaining the relationship between the scaffold cloth board and the holding scaffold according to the present invention.

FIG. 6 is a diagram for explaining the relationship between the scaffold cloth according to the present invention and a conventional scaffold cloth.

FIG. 7 is a perspective view of another embodiment of the scaffold cloth according to the present invention.

8 is a partially enlarged perspective view of the scaffold cloth board shown in FIG. 7;

FIG. 9 is a partially enlarged perspective view illustrating a use state of the scaffold cloth board illustrated in FIG. 7;

FIG. 10 is a perspective view of still another embodiment of the scaffold cloth board according to the present invention.

FIG. 11 is a partially enlarged perspective view showing still another embodiment of the scaffold cloth according to the present invention.

FIG. 12 is a front view of the scaffold cloth board shown in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame body 121 1st side 122 2nd side 111 3rd side 112 4th side 2 Tread plate 31 1st latching means 32 2nd latching means 33 3rd latching means 34 4th Hooking means

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yukio Harada 1-7-4 Nakasone, Yoshikawa-shi, Saitama (72) Inventor Naohiko Harada 2-9-9, Hikonari, Misato-shi, Saitama

Claims (2)

[Claims] 1. A scaffold cloth board including a frame, a tread, and at least four hooking means, wherein the frame has a first side, a second side, and a third side. And a fourth side, wherein the first and second sides face each other, and the third and fourth sides are disposed on both ends of the first and second sides, and The tread plate is disposed on the frame body, and the first latching means is on the third side and the first
The second hooking means is provided on the third side, and the second hooking means is provided on the third side.
The distance between the extension of the first side and the first latching means is D1, and the extension of the second side and the second latch are provided. When the distance between the first and second stop means is D2, D1> D2 is satisfied, and the third stop means is on the fourth side, and the first stop means
The fourth hooking means is provided on the fourth side, and the second hooking means is provided on the fourth side.
The distance between the extension of the first side and the third latching means is D3, and the extension of the second side and the fourth latch are provided. A scaffold slab that satisfies D3> D4, where D4 is the distance between the stop means. 2. The scaffold cloth board according to claim 1, wherein said first to fourth hooking means are any of hooks, wedges, and bars.