JPH11141116A - Baseboard for framed scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a baseboard for a framed scaffolding which can be easily attached to a ready made standard framing by attaching a circular arc-shaped clamping metals made of a leaf spring to one surface of a projected part of a jointing portion attached in a longitudinal direction to both the end portions of the main body portion. SOLUTION: At both the end portions in a longitudinal direction of a main body portion 91 made by forming a strip-shaped metal plate into a plate-shaped member, a jointing portion 92 is attached, which has a projected portion and a recessed portion at the side connected to the main body portion 91 and an end portion at the opposite side. Next, on a single surface of a projected portion of a jointing portion 92, a clamping metal 93 made of a circular arc-shaped leaf spring is attached, thereby constituting a baseboard 9 for a framed scaffolding. And by the clamping metal 93, the baseboard 9 is attached from a side face to leg posts 11, 11 of a framing 1. Attaching direction of the jointing portions 92 at both the sides is desired to be mutually symmetrical about a point. By doing this, the base board 9 can be easily attached to the framing 1 as a ready-made standard product.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold for supporting a formwork or the like on a construction site such as civil engineering or a building, or a framework scaffold which is installed along an outer wall of a building and used as a work scaffold at a high place. For skirting boards.

[0002]

2. Description of the Related Art In Japan, a log scaffold made of cedar wood, which has been produced abundantly nationwide since ancient times, has been used as a work scaffold at high places installed along the outer walls of buildings at construction sites such as civil engineering and construction. It has been. Bamboo is still used in Southeast Asian countries. Although these logs and scaffolds are not disposable each time, use and storage often cause corrosion, breakage, and other abrasion, and today the use of resources and the preservation of the global environment is shouting. I have.

[0003] On the other hand, steel pipe frame scaffolds made of steel pipes have been developed from early on in Europe where forest resources are scarce and suitable for use as scaffolds. They have been introduced to Japan in the 1950s through the United States, and can be used repeatedly. It is generally used in most construction sites in Japan. This steel pipe frame scaffold is also used as a support for supporting a formwork or the like.

[0004] The structure has hardly changed since it was introduced into Japan. An example will be described with reference to FIG. 1 is a building frame, 11 is a pillar of the building frame 1, 12 is a transverse beam, 13 is a stiffener connecting the pillar 11 and the transverse beam 12, 14 is a fastener provided at a predetermined position of the pillar 11 and 2 is a plate. The attached cloth frame, 3 is a cross brace, 4 is a joint connecting the upper and lower pillars 11, and 5 is a jack base installed under the lowermost pillar 11.

[0005] The building frame 1 is a basic component of the steel pipe frame scaffold. It is composed of two steel pipe pillars 11, a horizontal beam 12 connecting the upper ends thereof horizontally, and a stiffener 13 connecting these. It is a steel pipe frame assembled in the shape of "", and is also called "torii type" because of its shape. Taking a torii type steel pipe frame scaffold installed along a wall surface of a building or the like as an example, a pair of building frames 1 and 1 are erected at a predetermined interval in a direction perpendicular to the wall surface, and are opposed to each other. The cross brace 3 is attached between the pedestals 11 and 11 using fasteners 14 to stabilize the horizontal direction, and a plate is provided between the cross beams 12 and 12 located at the upper ends of the opposing building frames 1 and 1. The structural unit is formed by crossing the cloth frame 2 and connected in predetermined units in the vertical and horizontal directions to form a framework scaffold.

[0006] In addition, there is an H-shaped frame scaffold that uses an H-shaped frame instead of a gate-shaped frame. In the torii type, a cloth frame is attached to the top surface of the frame. Therefore, there is a difference that the H type is attached to the center in the height direction. By the way, as can be seen from FIG. 7, the cross brace 3 also has a function of a handrail for preventing fall, but is not a member provided in the horizontal direction immediately near the cloth frame 2 with a plate. on the other hand,
Since the board-mounted cloth frame 2 has a flat plate shape and does not have a rising portion on the side surface, in these torii or H-shaped frame scaffolds, the foot can be removed from the board-mounted cloth frame, and tools and equipment on the board-mounted cloth frame can be removed. There was a danger of slipping and falling.

On the other hand, Japanese Utility Model Registration No. 3020115 discloses a landing board provided on a frame scaffold as a landing area for receiving materials. This will be described with reference to FIG. 6 is a frame, 61 is a bottomed tube of the frame 6, 7
Is a handrail frame, 8 is a handrail support, and 9 is a baseboard. According to the gazette, the railing support 8 of the handrail frame 7 is inserted into the bottomed tube 61 of the frame body 6, and the baseboard 9 is placed thereon to form a landing.
As described above, in the case of a frame newly designed for a landing, it is easy to attach the baseboard 9, but the frame of the steel pipe frame scaffold is generally used repeatedly at various sites as a standard leased product. Therefore, the design is standardized, and it is difficult to install the baseboard.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned safety problems by realizing a skirting board which can be easily attached to a ready-made standard frame. I do.

[0009]

According to the present invention, there is provided a main body formed by shaping a strip-shaped metal plate into a plate shape, and attached to both ends in the longitudinal direction of the main body and opposite to a side connected to the main body. A connecting portion having a convex portion and a concave portion formed at a side end thereof, and a scaffold for a frame scaffold constituted by a scissor fitting made of an arc-shaped leaf spring attached to one surface of the convex portion of the connecting portion. The mounting directions of the connecting parts on both sides are symmetrical with respect to each other, and the folded flange formed around the connecting part has a height to be in contact with the pillar to which the scissor fitting is attached. Both sides of the end opposite to the side connected to the part are frame scaffolding scaffolds having a length reaching near the center of the scissor fitting.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The skirting board of the present invention has a structure in which the pillars of the building frame are attached to the frame scaffolding by sandwiching the pillars of the building frame from the sides by arc-shaped leaf spring type scissors. It can be easily attached to conventional off-the-shelf building frames that do not have fasteners or pin holes. In addition, since the mounting is performed from the inside of the frame scaffold, there is no risk of detachment, and the mounting portion has a meshing shape, so that the mounting can be performed continuously without a break in the horizontal direction. Since the skirting board forms a rising portion on the side surface of the board-mounted cloth frame, it is possible to prevent a fall accident due to stepping off of the foot, a fall accident of tools and equipment, and improve safety at a construction site.

[0011]

An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partial perspective view of a frame scaffold showing a situation in which a skirting board of this embodiment is attached, and the same reference numerals are used for the components described so far. 9 is a baseboard, 91 is a main body formed by shaping a strip-shaped metal plate into a plate shape, 92 is a pair of connecting portions formed at both longitudinal ends of the main body 91, and 93 is a connecting portion. An arc-shaped leaf spring scissors attached to one surface of the convex portion of the portion 92.

FIG. 2 is a front view of the skirting board 9 as viewed from the side where the scissors are mounted, FIG. 3 is a plan view showing a part of the skirting board 9 with a cutout, and FIG. That is, baseboard 9
The connecting portions 92 are attached to both ends in the longitudinal direction of a main body portion 91 which is formed by elongating a metal plate into a plate shape, that is, a thin and rectangular shape like a plate obtained by sawing wood. A scissor fitting 93 is attached to one location on the same surface of the projection of each connection portion 92. The protrusions and recesses in the pair of connecting portions 92 attached to both ends in the longitudinal direction of the main body portion 91 are formed so that the protrusions on one side and the recesses and the one on the other side engage with each other.
It is preferable to make a point-symmetric relationship in the plane shape shown in FIG.

The baseboard 9 is attached to the pillar 11 of the building frame 1 from the side by means of a leaf spring scissor fitting 93. Therefore, the length of the baseboard 9 is, for example, 1,800 mm, with the center position interval of the scissors fitting 93 corresponding to the span of the building frame. The width of the main body 91 is, for example, 120 mm, and the apparent thickness of the main body 91 is, for example, 24 mm. FIG. 5 is a front view of the connecting portion 92, and FIG. As shown in FIG. 5, the connecting portion 92 is formed by pressing a metal plate to form a convex portion and a concave portion at an end portion, and a rivet hole for attaching a scissor fitting 93 is provided near the center of the convex portion.

The peripheral portion of the connecting portion 92 is formed with a folded flange 921 by squeezing at the time of press working, so that it does not bend or dent due to impact or the like, or the scissor fitting 93 is provided at the bottom of this flange. Since it is mounted, it is not rotated by the flange. Since each flange 921 is configured to be in contact with the pedestal at the height that is attached to the pedestal 11 by the scissor fitting 93, there is no flapping even after it is installed, and noise and other Does not occur.

Since the connecting portions 92 are attached to both ends of the main body portion 91 in a point-symmetric manner with each other, only one type of skirting board may be used. There is no. And when a frame scaffold is installed connected in the horizontal direction, the baseboard can also be attached continuously without a gap in the horizontal direction. As shown by the imaginary lines in FIG.
Are mounted on the same pillar 11 in a state where the convex portions and concave portions formed on the same are engaged with each other.

As can be seen from FIG. 1, the skirting board 9 of the present invention is simply fixed to the pair of steel pipe pillars 11 in the span direction by sandwiching both ends thereof, and thus is fixed in the vertical direction. It is a so-called drop. Since both side portions of the opposite end portions of the connection portions 92 on both sides opposite to the side connected to the main body portion 91 have a length reaching near the center position of the scissor fitting 93, both ends where the end portions are below. The skirting board 9 is attached horizontally, and there is almost no gap between the skirting board 9 and the cloth frame 2 with a plate, and parts and tools fall from this gap. Not even.

The mounting is performed from the inside of the pillar, and the external force acting on the baseboard when the scaffold is stepped off is supported by the pillar on the back, so that it does not come off in use. Further, it is needless to say that the skirting board can be easily removed by pulling the skirting board slightly upward along the pillars and pulling the skirting board toward the front, so that the work of attachment and removal is extremely simple.

[0018]

According to the present invention, the skirting board can be easily attached to the ready-made standard building frame, and the fall of parts and tools can be prevented, and the safety in work at height can be achieved. It has an excellent effect that the performance is significantly improved.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a frame scaffold showing an attached state of a baseboard according to an embodiment of the present invention.

FIG. 2 is a front view showing a skirting board according to the embodiment of the present invention.

FIG. 3 is a plan view showing the skirting board of the embodiment of the present invention including a part of a notch;

FIG. 4 is a cross-sectional view of a main part of the baseboard of the embodiment of the present invention.

FIG. 5 is a front view showing a connection portion of the baseboard of the embodiment of the present invention.

FIG. 6 is a plan view showing a connection portion of a baseboard according to the embodiment of the present invention.

FIG. 7 is a perspective view of a frame scaffold without a baseboard showing a conventional technique.

FIG. 8 is a front view of a landing for receiving materials, showing another conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building frame 2 Cloth frame with board 3 Cross brace 4 Joint 5 Jack base 6 Frame 7 Handrail frame 8 Handrail support 9 Skirting board 11 Leg 12 Cross beam 13 Stiffener 14 Fastener 61 Bottom pipe 91 Main body 921 Flange 92 Connection Part 93 scissors bracket

Claims (4)

[Claims] 1. A main body (91) formed by shaping a strip-shaped metal plate into a plate material shape, and a side attached to both longitudinal ends of the main body (91) and connected to the main body (91). A framework composed of a connecting portion (92) having a convex portion and a concave portion formed at the opposite end portion, and an arc-shaped leaf spring scissor (93) attached to one surface of the convex portion of the connecting portion (92). Baseboard for scaffolding. 2. The skirting board for a framework scaffold according to claim 1, wherein the mounting directions of the connecting portions on both sides are point-symmetric with respect to each other. 3. The method according to claim 1, wherein the folded flange formed around the connecting portion has a height at which it comes into contact with the pillar to which the scissor fitting is attached. Frame scaffolding for scaffolding. 4. Both ends of the connecting portion (92), which are opposite to the side connected to the main body (91), are provided with the scissors (93).
Claim 1, wherein the length is to reach the vicinity of the center position of
The skirting board for a framework scaffold according to 2 or 3.