JPH09209563A - Simplified scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe scaffold easy to assemble and disassemble by fitting horizontal brackets and diagonal brackets to a removably connected stanchion, arranging it along a wall, and connecting the stanchions with cross braces. SOLUTION: Horizontal brackets 5 and expandable diagonal brackets 6 are fitted to a long stanchion connected with a lower stanchion 2 and an upper stanchion 3 via fitting metals 10, 11 so that scaffold boards 4 are horizontally fitted even when a wall face is inclined. The diagonal brackets are expanded/ shrunk and adjusted in length. The long stanchions arranged in parallel are reinforced by cross braces 7. The cross braces 7 provided at the connection portion of the stanchions are fitted astride the lower and upper stanchions 2, 3. Handrail stanchions 19 are erected on the horizontal brackets 5 as required to improve safety. Individual members are connected by gravity lock or catch lock in a single operation. A simplified scaffold easy to assemble, disassemble, or handle can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple scaffold installed at the time of construction of a masonry retaining wall.

[0002]

2. Description of the Related Art A scaffold for constructing a retaining wall made of masonry on a slope in a construction work or a road work is simple because of a short period of use. For example, a pipe is inserted into the end of a drainage pipe that projects to the slope, and a scaffolding board is placed on a single pipe.

[0003]

Since the scaffolding plate is simply placed on the single pipe, it lacks stability and there is a risk of crashing, so it cannot be said to be sufficient as safety equipment. In addition, the single pipe is heavy and inconvenient for assembly and disassembly.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional examples, and to secure sufficient safety even for a simple scaffold used when constructing a masonry retaining wall, etc., and easy to assemble and disassemble. To provide convenient and convenient scaffolding.

[0005]

In order to achieve the above-mentioned object, the present invention provides a lower column and an upper column connected to the lower column, and a lower column via an oblique bracket and a horizontal bracket having attachment angle adjusting means. A scaffolding board attached to each of the upper columns, a lower cross brace attached to the lower columns, and an upper cross brace attached to the upper columns from the upper part of the lower columns, and diagonally. The bracket comprises an outer pipe and an inner pipe slidably inserted into the outer pipe so that the entire length of the bracket can be adjusted. A plurality of holes for position adjustment are formed in the outer pipe. The gist of the invention is to provide an overlapping hole in any of the holes, insert lock pins into both holes to connect the outer pipe and the inner pipe, and detachably attach a handrail to the scaffolding plate.

The gist of the present invention is to connect the lower strut and the upper strut with a click lock, and to connect the handrail prop to the scaffold plate with a click lock.

According to the first aspect of the present invention, the scaffold can be easily formed by connecting the upper strut to the lower strut, attaching the scaffolding plate to them through the diagonal bracket and the horizontal bracket, and attaching the cross braces. Can be assembled.
At this time, since the slant bracket is provided with the mounting angle adjusting means, it is possible to horizontally install the scaffold plate in correspondence with the slope of the slope.

[0008] Further, since the upper cross strut is attached across the lower support and the upper support, the connection between the lower support and the upper support becomes more reliable.

According to the second aspect of the present invention, the length of the entire diagonal bracket is adjusted by adjusting the insertion length of the inner pipe with respect to the outer pipe by selecting one of the plurality of holes provided in the outer pipe. Can be changed, which makes it possible to easily change the mounting angle of the scaffolding plate. Further, the outer pipe and the inner pipe can be easily connected to each other by only inserting the lock pin into the hole.

According to the third aspect of the present invention, the handrail detachably attached to the scaffolding plate can reliably prevent a fall during work.

According to the present invention as set forth in claims 4 and 5, since the lower strut and the upper strut, and the handrail strut and the scaffolding plate are both connected by a click lock, they can be easily moved to a precise position with one touch. And it can be surely connected.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing a first embodiment of a simple scaffolding of the present invention, and FIG. 2 is a front view of the same as above. The simple scaffolding of the present invention is basically a base 1, a lower support column 2 standing on the base 1, An upper strut 3, a scaffolding plate 4, and a scaffolding plate 4 connecting the lower strut 2 to the lower strut 2 and the upper strut 3.
The horizontal bracket 5 and the diagonal bracket 6 are connected to each other, and the cross brace 7 is connected to the lower strut 2 and the upper strut 3.

The base 1 is a side view of FIG. 3, a front view of FIG.
As shown in the plan view of FIG. 5, mounting pieces 1b facing each other are erected on the substrate 1a, and lock pins 1c for preventing the lower column 2 from falling are provided between the mounting pieces 1b and 1b.
In the figure, 1d is a hole for fixing to the ground, and is formed in an elongated shape so that its position can be adjusted.

As shown in FIG. 6, the lower support 2 is made of a light-drawn steel pipe made of a lightweight material such as aluminum, and is lightweight, and a connecting pin 8 for connecting to the base 1 is provided at the lower end of the support main body 2a.
A connecting pin 9 for connecting to the upper column 3 is provided at the upper end of each of them.
Each connecting pin 8 and 9 is provided with a bolt hole.

A metal fitting 10 for attaching the horizontal bracket 5 and the diagonal bracket 6 to the upper part in the middle of the pillar main body 2a.
Fix 11 by welding. As shown in FIGS. 7 and 8, the hardware 11 is formed by forming the main body 11a into a cylindrical body into which the main post body 2a is inserted, and projecting a connecting projection 11b facing one side surface of the main body 11a. The piece 11b is provided with a bolt hole.

The body 11 on the side opposite to the side on which the connecting protrusion 11b is provided
A spacer 12 is integrally provided on a and is interposed between the slope and the slope. The spacer 12 has a threaded portion 12a protruding from the main body 11a, and a socket 12b is screwed into the threaded portion 12a.

The hardware 10 is a type without a spacer 12,
The basic structure is the same as the hardware 11.

The spacer 13 is positioned further above the mounting position of the metal 10 and the spacer 13 is fixed to the lower column 2 by welding. The spacer 13 has the same basic structure as the spacer 12, and a screw portion 13b is projectingly provided from a cylindrical body 13a into which the lower support 2 is inserted.
The socket 13c was screwed into the screw portion 13b.

Like the lower strut 2, the upper strut 3 is also made of a light-drawn steel pipe made of a lightweight material such as aluminum, and has a bolt hole for connecting the lower strut 2 to the lower end of the strut body 3a. The metal piece 10 and the metal piece 11 provided with the spacer 12 are fixed to the upper part of the by welding or the like.

Also, a gravity lock pin 14 for connecting the cross brace 7 to the lower strut 2 and the upper strut 3, respectively.
Attach. In this case, the cross brace 7 is provided in the upper and lower two columns by the lower strut 2 and the upper strut 3, and the gravity lock pin 14 for attaching the lower cross brace 7 is provided in the lower portion of the lower strut 2 and the upper brace. Gravity lock pins 14 for attaching the cross brace 7 are provided above the lower support column 2 and above the upper support column 3.

The horizontal bracket 5 for connecting the scaffolding plate 4 to the lower strut 2 and the upper strut 3 has a metal piece 15 formed by a connecting projection which is connected to the metal piece 10 at the lower end as shown in FIGS. And a metal member 16 for connecting the diagonal bracket 5 to the middle position of the lower surface. The metal piece 16 is composed of two connecting projecting pieces that face each other, and bolt holes are provided in the metal pieces 15 and 16, respectively.

On the upper surface of the horizontal bracket 5, a pin 17 for preventing steadying of the scaffolding plate 4 is provided so as to project, and a connecting pin 18 for connecting a handrail support 19 is provided at the tip.

As shown in FIGS. 13 and 14, the diagonal bracket 6 is composed of an outer pipe 6a connected to the horizontal bracket 5 and an inner pipe 6b connected to the lower strut 2 or the upper strut 3. It was slidably inserted into the outer tube 6a so that the entire length could be adjusted freely.

The outer tube 6a has a plurality of holes 21 for adjusting the angle.
a, 21b and 21c are bored, and a connecting pin 20 is projectingly provided on the upper end, and the connecting pin 20 has a bolt hole for connecting.

The inner pipe 6b has the plurality of holes 21a, 21b, 21c.
A hole 23 that matches one of the
The connecting pin 22 is formed with a bolt hole for connection.

A wire 25 having a gravity lock pin 24 connecting the outer pipe 6a and the inner pipe 6b fixed thereto by welding.
Is attached to an appropriate place such as the metal fitting 16.

Next, the assembling method will be described. Connect the connecting pin 8 at the lower end of the lower support 2 to the mounting pieces 1b, 1b of the base 1.
Insert it in between and fix them with bolts. Next, attach the hardware 10 attached to the lower support 2 to the hardware 15 of the horizontal bracket 5.
Are fixed with bolts, then the outer pipe 6a of the diagonal bracket 6 is fixed with bolts to the metal 16 of the horizontal bracket 5, and the inner pipe 6b of the diagonal bracket 6 is fixed with bolts to the metal 11 of the lower support 2.

After that, the outer pipe 6a is inserted into the inner pipe 6b, the insertion length of the inner pipe 6a is adjusted so as to match the inclination of the retaining wall on which the scaffold is to be installed, and a plurality of outer pipes 6a are formed. Align the hole 23 of the inner pipe 6b with any one of the holes 21a to 21c, insert the gravity lock pin 24 into both holes, and insert the outer pipe 6a.
And the inner pipe 6b are connected.

The steps up to this step are carried out in the base structure. In this state, the construction of the retaining wall by masonry has been completed up to, for example, about 1.8 m on the slope, and the lower pillar 2 assembled as described above is leaned against the masonry and the end portion of the lower cross brace 7 Is attached to the lower column 2 with the gravity lock pin 14.

Next, the installation position of the lower column 2 is determined, and the base 1 is placed on the masonry foundation. Spacer between the masonry
Adjust by turning the 12 socket 12b.

Then, a hole is drilled from the hole 1d of the base 1 to the masonry foundation by a hammer drill, and a hole-in anchor is driven to fix the base 1 to the masonry foundation.

The step of attaching the cross brace 7 may be performed before the lower support 2 is leaned against the masonry.
It is also possible to attach the lower cross brace 7 to and then lean the whole into a masonry.

Next, the scaffolding plate 4 is placed on the horizontal bracket 5, and the scaffolding plate 4 is fastened and fixed to the horizontal bracket 5 or the like with a rubber band or the like. In this case, since the scaffolding plate 4 is formed of a lightweight member, even one person can easily lift it. Further, since the length of the diagonal bracket 6 is adjusted and the mounting angle of the horizontal bracket 5 with respect to the lower column 2 is adjusted, the horizontal bracket 5 is positioned horizontally and the scaffolding plate 4 is also installed horizontally. Further, the connecting pin 18 of the horizontal bracket 5
Grabity lock pin provided on the upper and middle parts of the handrail support 19 by inserting the handrail support 19 into the
Attach handrails 27a and 27b to 26 in two steps.

When the lower support 2 is installed as described above and the scaffolding plate 4 is attached to the lower support 2, the upper support 3 is grounded with horizontal brackets 5 in the same manner as the lower support 2, and then the lower support 2 is installed. Bolt it to the connecting pin 9 at the top of 2,
The upper strut 3 is connected to the lower strut 2. Such work is performed on the scaffolding plate 4 attached to the already assembled lower column 2.

Next, the upper cross brace 7 is attached across the lower strut 2 and the upper strut 3. After that, scaffolding board 4
And the steps of installing the handrail support 19 and the handrails 27a and 27b are the same as those of the lower support 2.

Although illustration is omitted, a ladder can be considered as a means for moving the scaffolding plate 4 up and down, but the ladder is installed between these columns by appropriately changing the spacing between columns.

In the scaffold thus installed, since the base 1 is provided with the lock pin 1c for preventing the fall, the lower strut 2 can be prevented from inclining and falling, and the strut can be arranged in the lower part and the upper part. Even when divided, the upper cross brace 7 is disposed over the lower support column 2 and the upper support column 3,
The cross brace 7 reinforces the strength and firmly fixes.

In the first embodiment described above, the lower support 2 and the upper support 3 are connected by inserting bolts into the connecting pins 8, and the handrail support for the horizontal bracket 5 of the scaffolding.
The connection of 19 was performed by inserting the handrail support post 19 into the connection pin 18 and fixing it with bolts. As a second embodiment, the connection between the lower support post 2 and the upper support post 3, the horizontal bracket 5 and the handrail support post 19 were performed. The connection of each of them was performed with the click lock 28.

The click lock 28 is a mid-leg joint, and as a connecting structure between the upper strut 3 and the lower strut 2, as shown in FIG. 16, a lock hole 29 is formed in the lower part of the upper strut 3 to connect the lower strut 2 with the lock hole 29. A joint pipe 30 having an outer diameter equal to the inner diameter of the upper support column 3 is provided on the upper portion, and a projection 31 which is retracted into and out of the joint pipe 30 by the elastic force of a built-in spring is provided on the side portion of the joint pipe 30.

As a connecting structure between the horizontal bracket 5 and the handrail support 19, a lock hole 29 is formed in the lower portion of the handrail support 19 as shown in FIGS. A joint pipe (30) having an outer diameter equal to the inner diameter of the column (19) is provided in a projecting manner, and the joint pipe (30) is provided with a protrusion (31) protruding and retracting in the pipe by the elastic force of a spring incorporated therein.

The connection between the upper support column 3 and the lower support column 2,
The horizontal bracket 5 and the handrail support 19 are connected to each other by inserting the lower part of the upper support 3 and the lower part of the handrail support 19 into the joint pipe 30. If the protrusions 31 are pushed into the joint pipe 30 by being pressed by the lower parts of the slide columns 19 and the protrusions 31 are aligned with the positions of the lock holes 29, the protrusions 31 are protruded by the elastic force of the spring and are locked in the lock holes 29. It

Therefore, as shown in FIG. 19, by simply inserting the lower part of the upper strut 3 into the upper part of the lower strut 2 to which the horizontal brackets 5 and the diagonal brackets 6 are respectively attached by the ground structure, the upper part of the lower strut 2 can be easily attached to the upper part. The columns 3 can be connected, and in this case, the projections 31 are inserted into the lock holes 29 to be joined, so that the positioning is automatically performed.

Further, the handrail post 19 can be connected to the horizontal bracket 5 in the same manner by just inserting it.

[0044]

As described above, the simple scaffold of the present invention is
Even if it is a simple scaffold used when constructing a masonry retaining wall, etc., each member can be securely connected and the scaffold plate can be installed horizontally with a simple structure to ensure sufficient safety and easy to assemble and disassemble. It is convenient for handling.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of a simple scaffold of the present invention.

FIG. 2 is a front view showing the first embodiment of the simple scaffolding of the present invention.

FIG. 3 is a side view of a base forming the simple scaffold of the present invention.

FIG. 4 is a front view of a base forming the simple scaffold of the present invention.

FIG. 5 is a plan view of a base forming the simple scaffold of the present invention.

FIG. 6 is a side view of a column that constitutes the simple scaffold of the present invention.

FIG. 7 is a side view of a metal object forming the simple scaffold of the present invention.

FIG. 8 is a plan view of a metal object forming the simple scaffold of the present invention.

FIG. 9 is a plan view of a spacer constituting the simple scaffold of the present invention.

FIG. 10 is a rear view of a spacer forming the simple scaffold of the present invention.

FIG. 11 is a side view of the horizontal bracket in a state in which the handrail support columns constituting the simple scaffold of the present invention are attached.

FIG. 12 is a bottom view of a horizontal bracket forming the simple scaffold of the present invention.

FIG. 13 is a side view of the diagonal bracket constituting the simple scaffold of the present invention in an exploded state.

FIG. 14 is a front view of a disassembled state of the diagonal bracket that constitutes the simple scaffold of the present invention.

FIG. 15 is a side view showing a second embodiment of the simple scaffolding of the present invention.

FIG. 16 is a side view of a pillar that constitutes a second embodiment of the simple scaffolding of the present invention.

FIG. 17 is a side view of a horizontal bracket in a state in which a handrail support column that constitutes a second embodiment of the simple scaffolding of the present invention is attached.

FIG. 18 is a front view of a handrail support column that constitutes a second embodiment of the simple scaffolding of the present invention.

FIG. 19 is a side view of an assembled state showing a second embodiment of the simple scaffolding of the present invention.

[Explanation of symbols]

1 ... Base 1a ... Board 1b ... Mounting piece 1c ... Lock pin 1d ... Hole 2 ... Lower support 2a ... Support main body 3 ... Upper support 3a ... Support main body 4 ... Scaffolding plate 5 ... Horizontal bracket 6 ... Oblique bracket 6a ... Outer pipe 6b … Inner pipe 7… Crossover 8… Connecting pin 9… Connecting pin 10… Hardware 11… Hardware 11a… Main body 11b… Connecting projection 12… Spacer 12a… Screw part 12b… Socket 13… Spacer 13a… Cylindrical body 13b… Screw Part 13c ... Socket 14 ... Gravity lock pin 15 ... Hardware 16 ... Hardware 17 ... Pin 18 ... Connection pin 19 ... Handrail support 20 ... Connection pin 21a, 21b, 21c ... Hole 22 ... Connection pin 23 ... Hole 24 ... Gravity lock pin 25 ... Wire 26 ... Gravity lock pin 27a, 27b ... Handrail 28 ... Click lock 29 ... Lock hole 30 ... Joint pipe 31 ... Protrusion

Claims (5)

[Claims] 1. A lower strut, an upper strut connected to the lower strut, scaffold plates respectively attached to the lower strut and the upper strut via an oblique bracket and a horizontal bracket having attachment angle adjusting means, and a scaffold plate attached to the lower strut. A simple scaffold characterized by being composed of a lower cross brace that is attached to the lower brace and an upper brace that is attached from the upper part of the lower brace to the upper brace. 2. The diagonal bracket is configured such that the entire length can be adjusted by an outer pipe and an inner pipe slidably inserted into the outer pipe, and the outer pipe is provided with a plurality of holes for position adjustment, The simple scaffold according to claim 1, wherein the pipe is provided with a hole that overlaps with any of these holes, and lock pins are inserted into both holes to connect the outer pipe and the inner pipe. 3. The simple scaffold according to claim 1, wherein a handrail is detachably attached to the scaffold plate. 4. The simple scaffold according to claim 1, wherein the lower strut and the upper strut are connected by a click lock. 5. The simple scaffold according to claim 1, wherein the handrail support is connected to the scaffold plate by a click lock.