JP2001214608A - Ledger frame with floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ledger frame with a floor capable of constituting a stepless working floor and passage. SOLUTION: The ledger frame is formed of clamping metal fitting 4 fixed to arms 6 of scaffolds and a floor board 3 to have a rectangular tabular shape. No step is formed between the floor board 3 and the clamping metal fitting 4. A closing member 11 is provided to close the clearance between the arm 6 and the floor board 3. The parallelly stretched ledgers 7 and beams 8 laid between the ends of the ledgers 7 are provided and the closing member 11 is also provided at the beam 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor-mounted cloth frame used as a scaffold plate of a temporary scaffold mainly constructed as a work floor or a passage for workers at a construction site such as a building or civil engineering.

[0002]

2. Description of the Related Art As a temporary scaffold constructed as a work floor or a passage for workers at a construction site or the like, for example, as shown in FIG. And two buildings 30 in the direction between the beams.
Are installed at predetermined intervals, and a fabric 3 made of a steel pipe is interposed between the buildings 30 adjacent in the girder direction.
1, a steel pipe scaffolding constructed by bridging a horizontal land 32 composed of steel pipes between two buildings 30 adjacent to each other in a beam direction, and bridging a scaffold plate 33 between the horizontal grounds 32, respectively. Are known.

As a scaffold plate used in this type of steel pipe scaffold, for example, a cloth frame 34 with a floor as shown in FIGS. 6 (a) to 6 (c) is known. Both ends of the cloth material 35 are connected by a beam member 36 to form an elongated flat rectangular cloth frame (not shown), a floor plate 37 is attached to the cloth frame, and the both ends in the longitudinal direction of the cloth material 35 are gripped. A metal fitting 38 and a stopper 39 are attached to each other.

[0004] Further, the cloth frame 34 with a floor thus constructed.
Is gripped from the top by the grips 38 at both ends and is suspended between the horizontal lands 32, and the catch 39 protrudes from the lower side of the horizontal lands 32 so that the grip 38 is accidentally detached from the horizontal lands 32. Not to be.

[0005] Further, a cloth material 35, a beam material 36 and a floor plate 37 are provided.
Is made the same height as the horizontal land 32 as shown in FIG. 6C, for example, to eliminate the step.

[0006]

However, the grip 3
8 protrudes above the cloth material 35, the beam material 36, and the floor plate 37, so that the worker may trip over the gripping metal fitting 38 or fall while working or walking,
There was a problem with safety.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a work frame with a floor and a work frame with a floor which can form a passage.

[0008]

As a means for solving the above-mentioned problems, a cloth frame with a floor according to the present invention has, as claim 1, a grip metal and a floor plate which are locked to a horizontal ground of a scaffold. There is no step between the grip and the floorboard.

According to a second aspect, in the cloth frame with a floor according to the first aspect, a closing portion for closing a gap between the horizontal ground and the floor plate is provided. According to a third aspect of the present invention, in the floor-mounted cloth frame according to the second aspect, a closing member is provided on the beam material, the cloth material extending in parallel with the beam material bridged between the ends of the cloth material.

[0010]

1 to 4 show an example of a floor-mounted cloth frame according to the present invention. In FIG. 1, a floor-mounted cloth frame 1 has a floor plate 3 on a cloth frame 2 and a cloth frame 2 Are formed in a horizontally long flat rectangular plate shape having a gripping metal 4 and a stopper metal fitting 5 at both ends in the longitudinal direction.

Further, the cloth frame 1 with a floor constructed as described above.
Is a side cloth 32 of a steel pipe scaffold as shown in FIG.
(Hereinafter, referred to as “horizontal ground 6”), the grips 4 at both ends are hooked, respectively, and are hung between the horizontal lands 6, 6. The cloth frame 2 bridges a beam member 8 between both ends of two cloth members 7 extending in parallel, and a cross bar 1 between the middle parts of the cloth members 7.
0, and a vertical middle bar 9 is bridged between the intermediate portions of the beam members 8, 8 as necessary, to form a planar rectangular lattice.

The vertical center bar 9 is attached when the width of the cloth frame 2 is large (about 500 mm). Cloth material 7
Each of the vertical and middle bars 9 is formed in a substantially L-shaped cross section by bending the edge of the floor plate 3 in the width direction downward. The horizontal middle residue 10 is formed in a substantially L-shaped cross section, and is bridged between the cloth materials 7 on both sides and the vertical middle crosspiece 9 or between the cloth materials 7, 7.

The gripper 4 has a U-shaped engagement groove 4a at the tip end capable of engaging with the horizontal base 6 from above, is formed in a plate shape by casting or forging, and the like. At both ends (the corners of the cloth frame 2). Of the two grips 4 attached to one end of the cloth frame 2, one grip 4 is formed in a completely flat plate shape, and the other grip 4 protrudes from an end of the cloth material 7. The part is slightly bent inward.

In this way, when the plurality of floor-mounted cloth frames 1 are stretched between the horizontal lands 6 and 6 adjacent to each other in the longitudinal direction, for example, as shown in FIG. Interference does not occur, and a gap generated around the grip 4 can be minimized.

The grip 4 is attached to the inside of both ends of the cloth material 7 by riveting, screwing, screwing or welding the base end. At this time, the gripping metal 4 has a cloth material 7 and a beam material 8 as shown in FIG.
And it is provided so as to be substantially flush with the upper end surface of the floor plate 3.

In this way, a step formed by the grip metal 4 and the horizontal ground 6 is eliminated on the floor surface or the passage constituted by the plurality of cloth frames 1 with floor. The beam member 8 is formed in a substantially groove-shaped cross section that opens right beside the inside of the cloth frame 2, and is continuously bridged between the ends of the cloth members 7 on both sides and the longitudinal middle bar 9 therebetween.

In addition, a closing portion 11 for closing a gap A between the beam material 8 and the horizontal ground 6 as shown in FIG. The closing portion 11 protrudes to a substantially central portion on the horizontal ground 6, and overlaps the horizontal ground 6.
As the closing portion 11, for example, as shown in FIG. 2A, a horizontal flange 11a projecting horizontally from the upper end of the beam member 8 to the upper side of the horizontal ground 6, and a plurality of vertical ribs supporting the horizontal flange 11a from below. 2b, or, for example, as shown in FIG. 2 (b), the beam 8 is bent so that the edge 8a of the beam 8 protrudes above the horizontal ground 6. Note that the vertical rib 11b is not always necessary, and may be omitted.

As described above, the closing portion 11 is formed at the edge of the beam 8.
Is provided, when a plurality of floor-mounted cloth frames 1 are installed adjacent to each other in the longitudinal direction, the adjacent floor-mounted cloth frames 1,
It is possible to eliminate the gap between the two and the step due to the gap.
The floor plate 3 has the above-described cloth material 7 and the longitudinal middle crosspiece 9 at both edge portions in the width direction, and a plurality of reinforcing ribs 3a that are continuous in the longitudinal direction between them. The main purpose of embossing (irregularity processing) is applied.

As shown in FIG. 4, the stopper metal fitting 5 is composed of a supporting metal fitting 12 and a drop lock 13 supported by the supporting metal fitting 12. The support fitting 12 is formed in a substantially groove shape in cross section, and is attached inside the beam member 8. The falling tablet 13 is formed in a substantially crescent-shaped plate elongated in the circumferential direction of the horizontal ground 6, and the left and right flanges 12 a, 12
The supporting member 14 is supported by the upper supporting pin 14 and the lower supporting pin 15, and the tip portion 13 a protrudes downward from the slit 16 formed on the side of the beam 8 below the horizontal ground 6.

The upper support pin 14 protrudes from the support fitting 12, the lower support pin 15 protrudes from the drop lock 13, and the guide holes 17 and 18 into which the upper support pin 14 and the lower support pin 15 are inserted. Is a drop lock 13 and a support fitting 12
Are formed respectively. Each of the guide holes 17 and 18 is formed as an elongated hole in the longitudinal direction of the drop tablet 13, and a guide hole 19 elongated in the direction perpendicular to the axis of the guide hole 18 is formed at the upper end of the guide hole 18. Have been.

With such a configuration, FIG.
As shown in (a), the falling tablet 13 moves over a certain range (the range of the length of the guide holes 17 and 18) in the circumferential direction of the horizontal ground 6, and moves from the slit 16 of the beam 8 to the lower side of the horizontal ground 6. It can protrude greatly.

As a result, while the cloth frame with floor 1 is stretched between the horizontal lands 6 and 6, the catch 13 is detached from the horizontal lands 6 because the falling lock 13 projects greatly below the horizontal lands 6. There is no. Also, the falling metal 13 is pushed into the beam member 8 and the end of the cloth frame 1 with the floor is lightly pushed up in a state where the tip portion 13a slightly protrudes from the slit 16, so that the gripping metal 4 can be easily separated from the horizontal ground 6. Come off.

Further, as shown in FIG. 4 (b), the drop lock 13 rotates a predetermined range (the length of the guide hole 19) to the side of the side ground 6 around the upper support pin 14 as a rotation axis, and
a can largely protrude from the slit 16 onto the horizontal ground 6. With this, the falling lock 13 on the side where the gripping metal fitting 4 is removed from the horizontal ground 6 is pushed into the beam member 8 and the tip 13a is slightly protruded from the slit 16. By rotating the support pin 14 as a rotation axis toward the horizontal ground 6 and pulling it out and locking it on the horizontal ground 6, the side of the cloth frame 1 with the floor where the gripping metal fittings 4 are removed is temporarily placed on the horizontal ground 6. Since the floor frame 1 can be easily detached from the horizontal ground 6 simply by pushing the grip 4 on the opposite side lightly upward without particularly supporting the cloth frame 1 with floor. Therefore, the detachable floor frame 1 can be easily removed.

[0024]

The present invention is as described above. In particular, there is no step between the floor plate and the gripping metal, and the beam member has a projecting portion for closing the gap between the floor plate and the horizontal ground. When the machine is laid adjacently in the longitudinal direction, there is no gap or step between the adjacent floor-mounted fabric frames, and there is no gap between the floorboard and the horizontal ground. Accident can be prevented beforehand, and safety can be improved.

[Brief description of the drawings]

FIG. 1 shows an example of a cloth frame with a floor according to the present invention,
(A) is a partially broken plan view, and (b) is an end side view.

FIG. 2 shows an installation example of a cloth frame with a floor according to the present invention;
(A), (b) is an end side view.

FIG. 3 is a partial plan view showing an installation example of a floor-mounted cloth frame according to the present invention.

FIG. 4 shows an example of a cloth frame with a floor according to the present invention;
(A) and (b) are longitudinal sectional views of the ends, (c) is a sectional view taken along the line II in (b), (d) is a side view of the support bracket,
(E) is a side view of the falling tablet.

FIG. 5 is a partial perspective view showing an example of a steel pipe scaffold.

FIG. 6 shows an example of a conventional cloth frame with a floor, (a) a partial plan view, (b) a partial enlarged plan view, and (c) a partial side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cloth frame with floor 2 Cloth frame 3 Floor plate 4 Grasping metal 5 Detachment metal fitting 6 Side cloth 7 Cloth material 8 Beam material 9 Vertical middle rail 10 Horizontal middle rail 11 Closing part 11a Horizontal flange 11b Vertical rib 12 Supporting bracket 13 Drop lock 14 Upper side Support pin 15 Lower support pin 16 Slit 17 Guide hole 18 Guide hole 19 Guide hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yumi Kikuchi 1-21 Fusocho, Amagasaki-shi, Hyogo Sumitomo Metal Construction Materials Co., Ltd. (72) Inventor Hiroyuki Yokoyama 1-21 Fusocho, Amagasaki-shi, Hyogo Sumitomo Metal Construction Materials Co., Ltd. In-company (72) Inventor Junichi Ishise 1-2-1 Fuso-cho, Amagasaki City, Hyogo Prefecture Sumitomo Metal Construction Materials Co., Ltd.

Claims (3)

[Claims] 1. A floor-mounted cloth frame having a grip metal and a floor board, which is locked to a side ground of a scaffold, wherein a step is not provided between the grip metal and the floor board. 2. The floor-mounted cloth frame according to claim 1, further comprising a closing portion for closing a gap between the horizontal ground and the floorboard. 3. The floor-mounted cloth frame according to claim 2, comprising a cloth material extending in parallel and a beam material bridged between the ends of the cloth material, wherein the beam material has a closing portion. .