JPH0868197A - Attaching type scaffold for steel column - Google Patents

Abstract

PURPOSE: To provide a scaffold in common use, which can be installed in any one of a fitting for corner and a fitting for flat surface freely to be disconnected of which fitting and removing work can be performed safely, securely and quickly. CONSTITUTION: In a scaffold for steel column, a holding hole is drilled in the rear surface of a metal scaffold plate 1, and a V-like notch part 3 at a right angle is formed at a central part of the front surface of the scaffold plate 1. Each receiver fitting 7 hanged from both sides of the front surface of the scaffold plate 1 is formed with an insertion notch hole 8 for fitting. Each fitting, which is bent for working into a desirable batten plate shape and which is welded to the flat surface part or the corner part of the steel column, is installed in the insertion notch hole 8, and the same metal scaffold plate 1 can be installed in any fitting of the flat surface part and the corner parts freely to be removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel column mounting scaffold that is detachably mounted on a steel column such as a square steel tubular column having a square cross section used for a steel structure or the like. The present invention relates to a steel column mounting scaffold that can be mounted as both a corner mounting bracket welded to a column and a flat surface mounting bracket.

[0002]

2. Description of the Related Art Conventional steel column mounting scaffolds of this kind are welded to corner steel tube columns at predetermined intervals along the height direction by welding corner mounting fittings and flat mounting fittings, respectively.
A mounting scaffold dedicated to the corner was detachably attached to the mounting bracket for the corner portion, and a mounting scaffold dedicated to the flat portion was detachably mounted to the mounting bracket for the flat portion. In addition, a strip-shaped mounting member was also used which was bent into a shape suitable for each of the corner portion and the flat portion. A mounting metal fitting insertion notch hole is formed in the receiving metal fitting that hangs down from both front surfaces of the scaffold plate, and one of these is a pawl that is constantly spring-pressed so as to project below the mounting metal fitting insertion cutout hole. Had a body. Further, the above-mentioned conventional steel column mounting scaffold has a narrow plate-shaped flat surface or a V-cut narrow plate-shaped flat surface formed on the upper surface located on the side of the mounting metal that welds to the square steel pipe pillar. Form a frame and
A thin plate serving as a slight scaffold was formed in the center of the rear part of the frame, and an X-shaped convex part was formed in the upper part of the plane.

[0003]

The most difficult point of the above-mentioned conventional mounting scaffolds for steel columns is to prepare two types of scaffolding dedicated to the corner and a mounting scaffold dedicated to the flat surface at the construction site. In addition, these two types of scaffolds must be properly used and mounted when working at heights, and it took time to mount and the workability was poor. In addition, when removing the mounting scaffold from the mounting bracket at the end of construction, the above-mentioned conventional mounting scaffold holds the mounting scaffold upward with one hand while holding the pawl body against the spring elasticity with one hand. It was necessary to lift it up and remove it, and both hands were necessary for the removal work, and both hands were blocked in an unstable place at a high place, which was dangerous work. Further, the above-mentioned conventional mounting scaffold is not sufficient in strength, and there is a risk of slipping the foot only by forming the X-shaped convex portion in addition to the small area of the upper surface of the scaffold.

The present invention has been made in view of the above points, and it is an object of the present invention that one mounting scaffold can be removably mounted on both a corner mounting bracket and a flat mounting bracket. In addition to the dual-purpose type, the structure has a strong strength, the scaffolding area is as wide as possible in a limited space, and the structure has a large frictional resistance so that the foot does not slip. An object of the present invention is to provide a steel column mounting scaffold that enables safe, reliable, and quick mounting and dismounting work by enabling the dismounting work from the mounting bracket with one hand.

[0005]

The mounting scaffold for steel columns according to the present invention has a hole for gripping formed in the rear surface of a metal scaffold plate, and is formed at a right angle to the center of the front surface of the scaffold plate. A V-shaped notch is formed, and a receiving metal fitting that hangs down from both front surfaces of the scaffold plate is formed with an inserting metal fitting insertion notch hole, and the inserting notch hole has a flat surface of a steel column. Mounting brackets that have been bent to the desired shape such as welded strips and corners, and mount and remove the same metal scaffolding plate on both the flat and corner mounting brackets. It was installed as possible. In addition, a spring-pressurized claw body is provided below the receiving metal fitting that hangs down from both front surfaces of the metal scaffolding plate so that it projects below the notch hole for the mounting metal fitting. After retracting against the insertion force, the spring force is applied after inserting the mounting bracket to project into the insertion notch hole to lock the mounting bracket, and the metal scaffold plate from the mounting bracket. A lever that can completely release the claw body from the insertion notch hole at the time of removal is connected to the claw body. Further, a frustoconical projection hole is formed on the upper surface of the metal scaffold plate.

[0006]

Function: The corner mounting fittings and the flat mounting fittings are welded at predetermined intervals along the height direction of the steel column. To attach the mounting scaffold to the mounting bracket for corners, one hand is inserted into a holding hole formed on the rear surface of the metal scaffolding plate and held, and a V formed on the front center portion of the scaffolding plate is held. Apply the corner-shaped mounting bracket to the mounting bracket insertion notch hole that is formed in the receiving bracket that hangs the V-shaped notch on the corner of the steel column and hangs down from both sides of the front of the scaffold plate. Insert. At this time, the claws protrude below the notch hole for inserting the mounting bracket, but when the scaffold plate is pushed downward, it retreats against the spring force, and the spring force is applied after the mounting bracket is inserted. Then, the mounting metal fitting is locked by projecting again into the insertion notch hole.

On the other hand, in order to attach the mounting scaffold to the mounting bracket for the flat surface portion, one hand is inserted into a holding hole formed on the rear surface of the metal scaffolding plate, and the front surface of the scaffolding plate is made of steel. Abut on the flat surface of the column, and insert the flat surface mounting bracket into the mounting bracket insertion notch hole. At this time, the claws protrude below the notch hole for inserting the mounting bracket, but when the scaffold plate is pushed downward, it retreats against the spring force, and the spring force is applied after the mounting bracket is inserted. Then, the mounting metal fitting is locked by projecting again into the insertion notch hole.

After mounting the metal scaffolding plate on each of the corner mounting member and the flat surface mounting member, the metal scaffolding plate is used to move up and down to assemble a steel frame or the like. . Since the frustoconical projection holes are formed on the upper surface of the metal scaffolding plate during lifting and lowering, the projection holes do not get caught in the work shoes and slip the feet.

When the metal scaffold plate is detached from each fitting, it is necessary to use a lever capable of completely releasing the claw body from the insertion notch hole so that the lever is in a state of being tilted. Unlike the above, it is not necessary to hold the claw body with one hand so that it does not always return with one hand, and the metal scaffolding plate can be easily removed from each mounting bracket while holding it with one hand.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a metal scaffold plate, which is obtained by pressing a steel plate into a substantially M-shape and bending its peripheral edge downward or inward, but is not necessarily limited to press processing, and casting You may make it obtain the said shape by means, such as. Reference numeral 2 is a holding hole formed in a substantially rectangular plane shape from the central portion to the rear portion of the metal scaffolding plate 1.
Reinforcing ribs 1a projecting downward are formed at appropriate positions in the corners of the grip hole 2. Further, a right-angled V-shaped notch 3 is formed in the center of the front surface of the scaffold plate 1. The rectangular V-shaped notch 3 is formed to form a steel column 4 such as a square steel pipe column having a square cross section used in a steel structure or the like.
This is because it is applied to the corner of the to fit. Then, a reinforcing rib 1b protruding upward is formed on the peripheral edge of the cutout portion 3. Reference numeral 15 denotes a frustoconical projection hole formed on the upper surface of the metal scaffold plate 1. The formation of the projection holes 15 eliminates the risk that the frictional resistance increases when an operator puts his foot on the metal scaffolding plate 1 and the foot slips from the plate 1. Also, what is important here is that the projection length of the below-mentioned flat surface mounting bracket 5 and corner mounting bracket 6 welded to the steel column 4 must be within 20 mm from the surface of the steel column 4. Because it will not happen, scaffolding pre-
A cut portion 1c is provided without sharpening the tip of the notch portion 3 located on the front surface of the belt 1 so that the cut portion 1c can be attached to both the flat surface mounting bracket 5 and the corner mounting bracket 6.

The metal fittings 7 hanging from both sides of the front surface of the metal scaffolding plate 1 in an eight shape are formed by bending a single metal plate into a U shape, and the U shape portion is located on the tip side. Then, the upper portion of the bent metal plate is welded to both sides of the front surface of the metal scaffold plate 1. Reference numeral 8 denotes a mounting metal fitting cutout hole formed from the center of the lower part of the receiving metal member 7 toward the upper side. It is important to form the mounting metal fitting insert cutout hole 8 in such a position and shape that both the flat surface mounting metal fitting 5 and the corner mounting metal fitting 6 can be inserted. Insertion notch hole 8 for mounting bracket
A wide notch is formed in the lower part of the so as to guide the metal fittings 5 and 6 easily.

At the lower part of the receiving metal fitting 7 which hangs down from both sides of the front surface of the metal scaffolding plate 1, there is provided a claw body 9 which is elastically biased so as to project at the lower part of the mounting metal fitting notch hole 8. The claw body 9 retracts against the insertion force of the attachment fittings 5 and 6, and is pushed by the spring force after the attachment attachments 5 and 6 have been inserted, and protrudes into the insertion cutout hole 8. , 6 are locked and a lever 10 capable of completely releasing the claw body 9 from the insertion notch hole 8 when the metal scaffold plate 1 is detached from the fittings 5, 6 is connected to the claw body 9. Set up. In this example, in order for the nail body 9 to exhibit the above-mentioned function,
A hole formed by rotatably pivoting the lower part of the claw body 9 on a shaft 11 formed in the lower part between the U-shaped metal plates that are the receiving metal parts 7, and forming a hole near the tip of the claw body 9. One end of the spring 13 is fixed to 12. The spring 13 has a spiral part 13a formed by spirally winding a linear spring material, a linear part 13b linearly extending from the spiral part 13a and fixed to the hole 12, and a linear part from the other end of the spiral part 13a. Elongation,
It is composed of a winding portion 13c which is wound around the shaft 14 provided on the upper part of the receiving metal fitting 7 and fixed a plurality of times. Nail 9 and lever
It is obtained by bending at a right angle to 10.

The flat surface mounting bracket 5 is welded laterally at a predetermined interval in the vertical direction of the flat surface of the steel column 4.
The shape is such that the central portion of the strip is a flat portion 5a and is bent toward both end portions into a concave portion 5b, and an oblique inclined portion 5c is formed outside the concave portion 5b. The inclined portion 5c is inserted into the attachment fitting insertion cutout hole 8 formed in the receiving fitting 7. Further, the corner fittings 6 are welded laterally at predetermined intervals in the vertical direction of the corners of the steel column 4, but the shape is such that the central part of the strip fits the steel column 4. A bent portion 6a bent at a right angle is formed, a recess 6b is formed near the bent both ends, and a bottom surface 6c of the recess 6b is formed.
Is to be inserted into the attachment cutout hole 8 formed in the receiving metal fitting 7.

[0014]

As can be seen from the above description, the present invention has a holding hole formed in the rear surface of a metal scaffolding plate, and a V-shaped cut at a right angle in the center of the front surface of the scaffolding plate. A notch is formed, and a receiving metal fitting that hangs from both sides of the front surface of the scaffold plate is formed with an inserting notch hole for a mounting metal fitting, and the inserting notch hole has a flat surface portion and a corner portion of a steel column. Steel plates that are detachably mounted by mounting each mounting bracket that has been bent into a desired shape, such as a band plate welded to the base plate, and mounting the same metal scaffolding plate on both the planar and corner mounting brackets. Since it is a pillar-made mounting scaffold, it can be a combined type that can be detachably mounted to both the corner mounting bracket and the flat mounting bracket with one mounting scaffold.

Further, it is a safety structure in terms of strength, the scaffolding area is as wide as possible in a limited space, and a truncated cone-shaped projection hole is formed on the upper surface of the metal scaffolding plate. As a result, the structure is such that the foot does not slip and the frictional resistance is large, and the scaffolding can be used for safe work. On the lower part of the metal fittings that hang from both sides of the front surface of the metal scaffolding plate, a spring-pressurized claw body is provided so as to project at the bottom of the notch hole for inserting the metal fittings. Retract against the force, and after inserting the mounting bracket, it is urged by the spring force to project into the insertion notch hole to lock the mounting bracket, and remove the metal scaffold plate from the mounting bracket. At the same time, a lever that can completely release the claw body from the insertion notch hole was provided by connecting it to the claw body, so when removing the scaffold from the mounting bracket at the end of construction, simply remove the lever completely. The scaffold can be removed with one hand, and the scaffold can be installed, removed and installed safely, securely and quickly.
Can be removed.

[Brief description of drawings]

FIG. 1 is a perspective view of a metal scaffold plate showing an embodiment of the present invention.

FIG. 2 is a perspective view of a mounting bracket showing an embodiment of the present invention,
FIG. 6A is a perspective view of a flat surface mounting bracket, and FIG. 7B is a perspective view of a corner mounting bracket.

3A and 3B are explanatory views showing a relationship between a spring, a pawl, and a lever attached to a receiving fitting, FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view.

FIG. 4 is a perspective view showing a state in which a metal scaffold plate is attached to a flat surface portion of a steel column.

FIG. 5 is a perspective view showing a state in which a metal scaffold plate is attached to a corner portion of a steel column.

6A and 6B are explanatory views showing the relationship between the metal scaffold plate and the mounting bracket, FIG. 6A is a perspective view when the planar mounting bracket is used, and FIG. 6B is a corner mounting bracket. It is a perspective view at the time of doing.

[Explanation of symbols]

 1 Metal scaffolding plate 2 Gripping hole 3 Right angle V-shaped notch 4 Steel column 5 Flat surface mounting bracket 6 Corner mounting bracket 7 Receiving bracket 8 Mounting bracket insertion notch hole 9 Nail 10 Lever 15 Projection hole

Claims (3)

[Claims] 1. A scaffold plate having a grasping hole formed in the rear surface of a metal scaffold plate, and a right-angled V-shaped notch formed in the center of the front surface of the scaffold plate. The insert fitting cutout holes for the mounting fittings are formed in the receiving fittings that hang down from the front of the steel plate, and the insert cutout holes are bent into the desired shape of a strip plate welded to the flat surface and corners of the steel column. A mounting scaffold for steel columns, characterized in that each of the processed mounting brackets is mounted, and the same metal scaffolding plate is mounted on both the flat surface and the corner mounting brackets, and is detachably mounted. 2. A claw body, which is spring-biased so as to project at a lower part of a mounting notch insertion notch hole, is provided at a lower part of a receiving metal fitting that hangs from both front surfaces of a metal scaffold plate. Retract against the insertion force of the mounting bracket, and after inserting the mounting bracket, it is urged by the spring force to project into the insertion notch hole to lock the mounting bracket, and to mount the metal scaffold plate. 2. The mounting scaffold for steel columns according to claim 1, further comprising a lever connected to the pawl body, the lever being capable of completely releasing the pawl body from the insertion notch hole when the pawl body is detached from the mounting bracket. 3. The mounting scaffold for steel columns according to claim 1, wherein a frustoconical projection hole is formed on the upper surface of the metal scaffold plate.