JPH10183982A - Hand rail for framework scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient one for simply and simultaneously laying brace type hand rails, for blocking an opening in a building frame. SOLUTION: Hand rails for frames of a framework scaffold are composed of diagonal brace type hand rails 4 crossing with each other and arranged between left and right building members 1a, 1a constituting a building frame 1 in which the building members 1a, 1a are integrally incorporated with horizontal members connecting the building members 1a, 1a, and a horizontal hand rail bar 5 journalled at its left and right ends to the end pats of bars 4a constituting the brace type diagonal hand rails 4 and being foldable at its center. The diagonal brace-like hand rails 4 are alternately provided thereto with fitting semirings 8 adapted to be fitted on the outer peripheal surfaces of the building members 1a and flanges 9 formed therein with insertion holes in which locking protrusions 7 projected from the outer peripheral surfaces of the building members 1a, are inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a framed scaffold used as a temporary material for use in construction sites, civil engineering work sites, and the like, and to a frame handrail for closing an opening between building materials.

[0002]

2. Description of the Related Art As shown in FIG.
The building frames 1 of the formwork are arranged in parallel at appropriate intervals, and the building frames 1 are connected to each other by a cloth plate (scaffold plate) 2 and a brace 3.

[0003] More specifically, the building frame 1 is integrally formed into an H shape by right and left building materials 1a made of steel pipes and a horizontal material lb made of steel pipes connecting the building materials 1a in the middle. Then, the cloth plate 2 is hung by the hooks (not shown) at its ends between the horizontal members lb of the mutually adjacent building frames 1 and assembled as a scaffold.

[0004] The building material 1a of the building frame 1 has a locking projection protruding from the side thereof, and the brace 3 is a connection of a rod having a through hole at the end for inserting the locking projection. When the ends are hooked on the locking projections, the braces 3 are arranged facing each other.
It is hung on the side between each other.

The brace 3 is formed as a cross-brace pre-assembled in an X-shape with two bars axially attached to each other at the center.

[0006] Further, the building frames 1 are not only arranged side by side at intervals, but also connected by connecting pins whose ends are inserted.
By connecting the upper and lower ends of a, the height is increased by stacking in the vertical direction, and accordingly, the cloth plate 2 serving as a work passage also forms a floor of a plurality of floors.

[0007]

By the way, if the building frame 1 as shown in FIG. 8 is an H-shaped frame in which the center of the left and right building materials 1a is connected by a horizontal material lb, the cloth board 2 on the top floor can be obtained. The upper half of this building material 1a protrudes from the upper side. Chains and handrails are passed between the building materials 1a of the building frames 1 arranged opposite to each other at appropriate intervals so as to close the side openings, but in the case where this building frame 1 is located at the end portion Is
There has been no suitable member for closing the opening formed between the left and right building materials 1a at the end of the walking path by the cloth plate 2 in addition to closing the chain.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the disadvantages of the prior art and to provide a framed handrail for a framed scaffold in which a straddle-shaped handrail can be simultaneously and easily installed.

[0009]

In order to achieve the above object, the present invention firstly sets a space between the building materials of a building frame integrally composed of left and right building materials and a horizontal material connecting the left and right building materials. And a horizontal handrail rod which is pivotally mounted at the left and right ends on the ends of the rods constituting the crossed straddle-shaped handrail and is foldable at the center. The shape handrail is
The gist is that the lower end of the rod is provided with a semi-circular body fitted to the surrounding surface of the building material, and the upper end of the rod is formed as a flange provided with an insertion hole through which a locking projection projecting from the surrounding surface of the building material is inserted. It is assumed that.

Second, a crossed strut handrail disposed between the building materials of a building frame integrally formed of left and right building materials and a horizontal material connecting the same, and the crossed strut shape It consists of a horizontal handrail rod with its left and right ends pivotally attached to the end of the rod that constitutes the handrail, and the center rail is foldable. The crossed strut-shaped handrail fits on the upper end of the rod to the building material peripheral surface. The gist of the invention is that a semi-annular body is provided, and the lower end of the rod is formed as a flange provided with an insertion hole through which a locking projection projecting from the peripheral surface of the building material is inserted.

According to the first and second aspects of the present invention, when the crossed strut-shaped handrails which are folded so as to overlap each other are spread out so as to form an X-shape, the crossed strut-shaped handrails are pivoted. The horizontal handrail rod that can be folded at the center of the wrist is also extended from the folded state, and is horizontally hung on the crossed strut-shaped handrail. Therefore, if the crossed straddle-shaped handrail is arranged between the building materials of the H-shaped frame, the horizontal handrail rod can be set at the same time.

In addition to this, the crossed strut-shaped handrail engages a fitting semi-circular body provided at one end of the rod on the peripheral surface of the building material, and the other end of the rod projects from the peripheral surface of the building material. It can be easily arranged between the building materials just by locking it to the protrusion, and the locking protrusion that protrudes from the surrounding surface of the building material can be used for handrails and braces that bridge between building materials. Conventional locking projections for locking can also be used.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing a first embodiment of a frame handrail of a framework scaffold of the present invention.

As shown in FIGS. 7 and 8, the frame scaffold is integrally formed of left and right building materials 1a made of steel pipes and a horizontal material lb made of steel pipes connecting these at the upper end as shown in FIGS.
This horizontal member lb is assembled with a building frame 1 which connects the centers of the left and right building materials 1a to form an entire H-shaped frame.

In FIG. 8, reference numeral 6 denotes a brace or an octagonal reinforcing member arranged in the lower half below the horizontal member lb, and a member protruding from a side of the building material 1a of the building frame 1. The stop projection 7 is provided at the upper end of the building material 1a and slightly below the horizontal material lb. The locking projections 7 may have built-in gravity locks as projection pieces.

The handrail of the present invention is provided between the building materials 1a of the building frame 1 which is an H-shaped frame shown in FIG. It comprises a horizontal handrail rod 5 which is mounted on the end of the rod 4a so that both left and right ends are pivoted.

As shown in FIG. 4, the cross braided handrail 4 is provided with a semicircular body 8 fitted to the peripheral surface of the building material 1a by welding or the like at the lower end of the rod 4a. In the illustrated example, the fitted half-wheel body 8
Is U-shaped.

As shown in FIG. 3, the upper end of the rod 4a is formed as a flange 9 which rises vertically when the rods 4a are spread to form an X-shape.
Is provided with an insertion hole 9a through which the locking projection 7 projecting from the peripheral surface of the building material 1a is inserted.

On the other hand, the horizontal handrail rod 5 is formed by pivoting a pipe 5a divided at the center with a hinge so that it can be folded at the center.

The horizontal handrail rod 5 has a flange at its end, and this part is used as the rod 4a of the cross strut-shaped handrail 4.
Mounting bracket provided near the root of the flange 9 at the upper end of the shaft
Riveted to 13.

Next, the method of use will be described. In order to fold the crossed strut-shaped handrail 4, the rods 4a are overlapped in parallel as shown in FIG.
The horizontal handrail 5 is also folded at the center.

This is the state at the time of storage, and when the folded cross-shaped straddle-shaped handrail 4 is spread so as to form an X-shape, the horizontal handrail rod 5 is also extended from the broken state to a straight line.

As described above, the fitting semi-ring body 8 provided at the lower end of the rod 4a is fitted to the peripheral surface of the building material 1a while the crossed strut-shaped handrail 4 is expanded, and the flange 9 at the upper end of the rod 4a is attached. Locking projection 7 projecting from the peripheral surface of building material 1a through insertion hole 9a
Hook on.

FIG. 6 shows a second embodiment of the present invention, which is an example which can be used for a conventional torii frame and the like.

In the case of the present embodiment, the crossed striation handrail 4
This is the same as that of the first embodiment in that the horizontal rail 5 is pivotally mounted on the upper end of the rod 4a constituting the crossed strut handrail 4. The strut-shaped handrail 4 is provided at the upper end of the rod 4a with a semi-circular body 8 fitted to the peripheral surface of the building material 1a by welding or the like, and the lower end of the rod 4a is formed so that the rods 4a are formed in an X shape. It is formed as a flange 9 that rises vertically when it is spread, and the flange 9 has an insertion hole 9 through which a locking projection 7 projecting from the peripheral surface of the building material 1a is inserted.
a is provided. That is, the positions of the fitted semi-circular body 8 and the flange 9 are reversed from those of the first embodiment.

Even in such a case, the method of use is the same as that of the first embodiment, and a detailed description thereof will be omitted.

[0027]

As described above, the frame handrail for the scaffolding scaffold of the present invention is a convenient one that can easily and easily install a straddle-shaped handrail at the same time as closing the opening of the building frame.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a frame handrail of a framework scaffold of the present invention.

FIG. 2 is an enlarged front view of a main part showing a first embodiment of a frame handrail of a framework scaffold of the present invention.

FIG. 3 is a side view of an upper end portion of the horizontal handrail rod.

FIG. 4 is a plan view of a lower end portion of the horizontal handrail rod.

FIG. 5 is a front view of a framed handrail of the framework scaffold according to an embodiment of the present invention in a folded state.

FIG. 6 is a front view showing a second embodiment of the frame handrail of the framework scaffold of the present invention.

FIG. 7 is a perspective view showing an outline of a framework scaffold.

FIG. 8 is a front view of the H-shaped frame on the framework scaffold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Building frame 1a ... Building material 1b ... Horizontal material 2 ... Cloth board 3 ... Bracing 4 ... Crossed bracing handrail 4a ... Rod 5 ... Horizontal handrail rod 5a ... Tube 6 ... Reinforcement 7 ... Locking projection 8 … Mating half-ring 9… Flange 9a… Insertion hole 13… Axle mounting bracket

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tojiro Ito 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Junpei Kumeyama 1-chome Moto-Akasaka, Minato-ku, Tokyo No. 3-8 Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Masajuge Yoneda 1-15-7 Matsushima, Edogawa-ku, Tokyo Edogawa Kiki Steel Co., Ltd.

Claims (2)

[Claims] An intersecting strut handrail disposed between said building materials of a building frame integrally formed of left and right building materials and a horizontal material connecting the same, and the intersecting strut handrail is provided. It consists of a horizontal handrail rod with its left and right ends pivotally attached to the ends of the constituent rods, and can be folded at the center. The crossed straddle-shaped handrail is fitted at the lower end of the rod to the fitting half of the building material peripheral surface. A frame handrail for a scaffolding scaffold, wherein a ring body is provided, and an upper end of a rod is formed as a flange having an insertion hole through which a locking projection projecting from a peripheral surface of the building material is inserted. 2. A crossed straddle-shaped handrail disposed between said building materials of a building frame integrally formed of left and right building materials and a horizontal material connecting the same, and the crossed strut-shaped handrail is provided. It consists of a horizontal handrail rod with its left and right ends pivotally attached to the ends of the constituent rods, and can be folded at the center. The crossed strut-shaped handrail is fitted at the upper end of the rod with a half of the fitting to the peripheral surface of the building material. A frame handrail for a framed scaffold, wherein a ring body is provided, and a lower end of a rod is formed as a flange provided with an insertion hole through which a locking projection projecting from a peripheral surface of a building material is inserted.