JPH0711236Y2 - Scaffolding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a scaffolding device to be used by being attached to a steel column in a construction site of a steel frame structure or a steel frame reinforced concrete structure.

[Conventional technology]

When performing welding work or bolt fastening work by connecting steel columns to each other or connecting steel columns to steel beams, install a work machine such as an automatic welding machine or use a scaffold to secure a work space for workers. Is required. This scaffold is suitable to be installed on a steel column.

As an example, in Japanese Utility Model Laid-Open No. 59-8442, scaffold plates are attached to the outer periphery of a steel frame column so that the steel frame column is in the middle and the scaffold plates are horizontally opposed to each other, and the scaffold plates are passed between the ends protruding from the steel frame column. It is shown that the boards are laid to form a U-shaped scaffold.

[Problems to be solved by the device]

By the way, the size of a steel frame column may be different in several types even with one skeleton, and naturally the size of the steel frame column will be different if the construction is different and the building is different.

Thus, the mutual spacing of the scaffold plates attached to the steel columns will differ depending on the dimensions of the steel columns and must accommodate this difference in the spanned spans here.

However, in Japanese Utility Model Laid-Open No. 59-8442, there is no description about the connection between the scaffolding plate and the bridge plate, and an unstable state in which the bridge plate moves simply by placing it will occur. Also, if it is fixed so that it does not move, the problem is how to perform this fixing when the spacing between the scaffolding plates changes as described above.

In view of the above circumstances, an object of the present invention is to provide a scaffolding device capable of easily and reliably attaching a crossing plate between scaffolding plates corresponding to steel columns having various diameters.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention forms a ridge having lateral through holes on opposite end faces of scaffolding plates mounted on the outer periphery of a steel frame column so as to face each other with the steel column in between, A bar plate having a long hole orthogonal to the scaffold plate on both sides so as to straddle between the ridges is hung between the scaffold plates, and a bar member provided with a rod is attached to a lateral through hole formed in the ridge. Is attached to the scaffold plate by inserting the bolt, and the bolt coming out of the bar member is inserted into the long hole of the bridge plate to fix the scaffold plate and the bridge plate.

[Action]

According to the present invention, the bridging plate is spanned between the scaffold plates so as to straddle between the ridges, and a bar member is attached to the ridges by inserting a rod into a lateral through hole. The bridge plate is fixed by bolts via the bar member.

Also, since the bolt is connected to the bridge plate through a long hole and can move freely in this long hole, the bolt stop position can be adjusted even if the diameter of the steel column is different and the scaffold plates are different. Can be dealt with.

In addition, the bar member is previously fixed to the bridge plate with bolts,
The difference used is that the bolts can be loosened and the scaffolding can be slid along the slot.

Furthermore, since the long holes of the bridge are formed on both sides,
The bolts inserted into the elongated holes project only on both sides of the bridge plate, and the bolts do not project into the passage at the center of the bridge plate.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view showing an embodiment of the scaffolding device of the present invention, in which 1 is a steel column such as a prism or a column, and 2 is a scaffolding plate attached to the steel column 1.

First, the scaffolding plate 2 will be described. As shown in FIGS. 3 to 5, one end in the longitudinal direction of the frame member 3 formed by combining aluminum alloy angle members and channel members in a lattice shape. The outer side surface of the member 3a is projected upward to form a ridge 4. As shown in FIG. 4, the ridge 4 is provided with lateral through holes 27 penetrating forward and backward, and the left and right sides of the end member 3a are also formed. Upper and lower through-holes 5 are provided so as to project at three places near both ends and in the center.

As shown in FIG. 5, a hollow box member having a strong partition is used for the end member 3a so as to have a certain level of strength. Formed.

Further, the frame member 3 is provided with a series of or a series of double handrail sockets 6 made of short cylinders at the joints of the horizontal members and the vertical members at the four corners and the intermediate position. The sockets 6 are provided on the outer circumference so as to mainly go out to the outside except the side where the end member 3a is located, and two end members 3a are provided inside.

On this frame member 3, a checker plate 7 having a skirting board 7a is placed by raising the peripheral edge at a right angle, leaving only one side in the longitudinal direction. The plate 7 has the same size as the frame member 3 and the width. The side without the tree 7a is aligned with the end member 3a, and the hole 7b provided in the plate 7 is located on the socket 6 provided in the end member 3a. The frame member 3 and the checker plate 7 in the scaffolding plate 2 are connected to each other by bolting the plate 7 to the vertical member of the frame member 3 with an eyebolt 8 so that they can be separated from each other as necessary. In the figure, 7c indicates a drainage hole.

FIG. 2 shows a mounting bracket 10 to be mounted on the steel column 1 side, and a downward opening is formed in a mounting substrate 12 (two vertical ones in the figure) which are fixed to the steel column 1 with bolts 11a and nuts 11b. So that the angle member 13 is provided laterally along the reinforcing bracket 14a, and the angle member 13 is used to project the ridges 4 of the scaffolding plate 2.
The horizontal groove portion 15 having a downward opening into which is inserted is formed as the upper support portion.

Similarly, the mounting substrate 12 is provided with a short side portion of the unequal side angle member under the mounting substrate 12 so as to face the angle member 13.
The horizontal bracket 16 on the long side to support bracket 14b.
Is provided so as to support the lower surface of the end member 3a which is a side end of the scaffolding plate 2 by the horizontal plate 16 as a lower supporting member for supporting a required length, and the horizontal groove portion 15 and the horizontal portion 17 are provided. In combination with the above, the support portion of the scaffolding plate 2 was formed on the outer circumference of the steel column 1.

The horizontal portion 17 projects more than the opening width of the horizontal groove portion 15, that is, the horizontal plate 16 is wider than the angle member 13, but a flange 18 is attached to the outside of the angle member 13, and the flange 18 and the horizontal plate A vertical through hole 19 is formed at 16 and.

In the figure, 20 is a fixing rod that is inserted into the through hole 19, and a small small hole is formed on the upper surface of the angle member 13, and a nut is attached to this small hole to project as a screw hole 21 inwardly. Set screw 22 to be screwed.

In the figure, 25 is a bridge plate which is slidably attached to both sides of the steel frame column 1 via the mounting brackets 10 and which is bridged between the scaffold plates 2 and 11.
As shown in FIGS. 15 and 16, the bridging plate 25 is a flat U-shaped one in which both right and left ends are bent downward at a right angle to form downward flanges 25a of the same degree as the protrusions 4 of the scaffolding plate 2. The baseboard 28 made of channel material is added to the upper end surface, and this baseboard 28
At the same time, elongated holes 29 extending from the vicinity of the flange 25a toward the center are formed on both sides.

FIG. 15 shows a bar member 30 for fixing the bridge plate 25 to the scaffold plate, and has the same length as the flange 25a of the bridge plate 25,
A rod 31 to be inserted into the through hole 27 formed in the ridge 4 is provided on one side so as to project, and bolt holes 32 are formed at both ends in the vertical direction. In the figure, 33 is a butterfly bolt whose tip is screwed into this bolt hole 32.

The bolt holes 32 and the wing bolts 33 may be replaced with a combination of the bolts and the wing nuts screwed to the bolts which are raised from the bar member 30.

Next, the usage will be described.

As shown in FIGS. 2 and 6, bolts are provided on the outer circumference of the steel column 1.
The mounting bracket 10 is provided in advance with 11a and a nut 11b. In this case, the bolt 11a is welded to the steel column 1.

With respect to such a mounting bracket 10, the end member 3a of the scaffolding plate 2 is slanted as shown by the chain line in FIG. 7 so that the ridges 4 can be inserted into the horizontal groove portion 15 first, and then the whole is vertical. In other words, if it is installed so as to raise a shoji screen, the lower surface of the end member 3a can be entirely placed on the horizontal portion 17. In this example, the horizontal groove 15 is formed by the angle member 13, but it may be a channel member. Further, the horizontal support portion 17 is also formed of the angle member 13, but as described above, if the member 3a can be installed so as to raise a shoji, a channel material may be applied and an upward opening may be used instead of the horizontal portion.

According to the shoji construction method of this example, it is convenient that the scaffolding plate can be attached and detached from the front of the mounting bracket 10, but instead of the horizontal plate 16 an upward opening is formed and the lower end member of the scaffolding plate is set to this upward opening. The scaffolding plate can be attached from the side of the mounting member so as to be engaged.

As a result, the scaffolding plate 2 is supported so that the end member 3a which is the side end thereof is vertically sandwiched between the angle member 13 of the mounting member 10 and the horizontal plate 16.

The lower part of the end member is pressed against the mounting member 12 by the weight of the scaffolding plate, and the angle member 13 supports the upward force applied to the upper part. Therefore, when the mounting substrate 12 is vertical, the end member 3a does not come off from the mounting bracket 10, but as shown in FIG. 8, the through hole 5 of the end member 3a and the through hole 19 on the mounting bracket 10 side are aligned with each other. Then, the rod 20 is inserted into these through holes 5 and 19, and the lower end is screwed into the screw hole 19, so that the scaffold plate 2 is fixed to the mounting member 10.

The rod may be fixed by forming a keyhole instead of the screw hole 19, and providing a projection at the tip of the rod that can be inserted through the keyhole and winding a spring above the rod. In this way, the rod can be fixed and released by pressing and rotating the rod, which facilitates the operation. If necessary, the set screw 22 holds the head of the ridge 4 to prevent rattling.

The end of a horizontal U-shaped handrail 23 as shown in FIG. 10 is inserted into the socket 6 on the scaffolding plate 2, and the handrail 23 is set up by arranging several handrails 23 with the pin 24 fixed.

Further, the scaffolding plate 2 is attached so as to face each other with the steel column 1 in the middle, and the length thereof is larger than the width of the steel column 1 and the end portion thereof protrudes larger than the steel column 1. The transfer plate 25 is detachably hung between the parts.

The bridging plate 25 is stretched over the ridges 4 so that the flange 25a abuts the upper surface of the end member 3a.

A bar member 30 is attached to the ridge 4 by inserting a rod 31 into the through hole 27, so that the tip of the bolt hole 32 of the bar member 30 is screwed into the elongated hole 29. When the bolt 32 is inserted and tightened, the bar member 30 and the bridge plate 25 are bolted, and the bar plate 30 connects and fixes the bridge plate 25 and the projection 4 of the scaffold plate 2.

The bar member 30 may be previously fixed to the bridge plate 25 with bolts, and the bolts may be loosened and the scaffold plate 2 may be slid along the long holes 29 when used.

In this way, as shown in FIG. 9, the scaffolding plate 2 including the bridge plate 25 around the steel column 1 is provided in a U-shape to perform the work.

Then, when the welding work such as connecting the steel columns 1 to each other or connecting the steel beams 26 to the steel columns 1 or the bolt fastening work is completed and the curtain wall or the like is attached to the outer surface of the body,
The bridge plate 25 is removed, and the scaffold plate 2 is slid horizontally with respect to the steel frame column 1 so that the scaffold plate 2 can be pulled inside the body.

For this moving work, pull out the fixing rod 20 and set screws 22
Is loosened and the end member 3a may be slid on the horizontal plate 16. At this time, the angle member 13 acts as a guide during the movement because the ridge 4 is engaged.

After the slide is completed, the through hole 5 of the mounting member 10 is aligned with the through hole 5 of the end member 3a. Therefore, the fixing rod 20 is inserted again and fixed.

[Effect of device]

As described above, in the scaffolding device of the present invention, when the scaffold plate is attached to the outer periphery of the steel frame pillar with the steel frame pillar inside, and the spanning plate is hung between the scaffold plates, the dimensions of the steel frame pillar are different,
Even when the distance between the scaffold plates is changed, the bridging plate can be easily adjusted to be fixed to the scaffold plate, which is versatile.

Further, since the bolts are prevented from protruding into the passage which is the center of the transfer plate, there is no safety problem when the worker passes by.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a scaffolding device of the present invention, FIG. 2 is a perspective view of a mounting bracket for a scaffolding plate, FIG. 3 is a plan view with a part of the scaffolding plate cut away, and FIG. Front view, FIG. 5 is a vertical side view of the same as above, FIG. 6 is a front view of a mounting bracket, FIG. 7 is a vertical sectional view taken along the line aa in FIG. 6, and FIG. 8 is a vertical sectional view taken along the line bb of the same. FIG. 9 is a plan view showing the installation state of the scaffolding device of the present invention, FIG. 10 is a front view of a handrail, FIG. 11 is a plan view of a transfer board, FIG. 12 is a side view of the same, and FIG. Is a plan view of the above main part,
FIG. 14 is an enlarged side view of the same as above, and FIG. 15 is a plan view of a bar member. 1 …… Steel column, 2 …… Scaffolding plate 3 …… Frame material, 3a …… End member 4 …… Slits, 5 …… Through hole 6 …… Socket, 7 …… Checker plate 7a …… Baseboard, 7b …… Hole 7c …… Drain hole, 8 …… Eye bolt 9 …… Projection, 10 …… Mounting bracket 11a …… Bolt, 11b …… Nut 12 …… Mounting board, 13 …… Angle material 14a, 14b …… Bracket , 15 Horizontal groove 16 Horizontal plate, 17 Horizontal plate 18 Flange, 19 Through hole 20 Fixing rod, 21 Screw hole 22 Set screw, 32 Handrail 24 ...... Pin, 25 ...... Passing plate 25a …… Flange, 26 …… Steel beam 27 …… Through hole, 28 …… Baseboard 29 …… Long hole, 30 …… Bar member 31 …… Rod, 32 …… Bolt Hole 33 ... Butterfly bolt

Claims (1)

[Scope of utility model registration request] 1. A ridge having lateral through holes is formed on the opposite end faces of scaffold plates attached to face each other with the steel column in the outer periphery of the steel column and straddles between the ridges. In this way, the bridge plate having the long holes orthogonal to the scaffold plate on both sides is hung between the scaffold plates, and the bar member provided with the rod is inserted into the lateral through hole formed in the ridge by inserting the rod. A scaffolding device, characterized in that it is attached to a scaffolding board, and bolts coming out of the bar member are inserted into the long holes of the strut board to fix the scaffolding board and the straddle board.