JP3179759B2 - Hanging bracket for hanging scaffold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging scaffold used for hanging a scaffold used mainly in steel construction or the like on a steel beam or the like.

[0002]

2. Description of the Related Art In steelwork, work scaffolds such as those shown in FIG. 7 are often used for bolting and the like. In this type of work scaffold, a bracket frame 32 having an arm bar 31 projecting to the opposite side (back side) of the steel frame beam 30 is erected on the side of the steel frame beam 30 at a predetermined interval in the axial direction of the steel frame beam 30. At the same time, the steel frame 30 side (work surface side) of the bracket frame 32 is connected with a connecting material (not shown), the back side is connected with a lower frame 33 and a handrail 34 and a brace 35, and the side surface is connected with a handrail 34, respectively. Further, a steel cloth plate 36 is laid between the arms 31.

The work scaffold thus constructed is fixed to the steel beam 30 by fastening metal fittings 37 projecting from the side portions of the left and right bracket frames 32, respectively.

[0004]

However, the fastening 3
7 is horizontally projected on the side of the steel beam 30, so that the clamps 37 hinder the transportation and storage, and the handling is extremely troublesome. There was a problem that it could be.

In particular, a fastening member 37 is simply rotatably protruded from a side portion of the bracket frame 32 so as to be protruded.
Is also developed which can be stored in a state of being attached to the bracket frame 32. However, there is a problem such that the fastening bracket 37 swings when transporting by carrying on a shoulder or the like, which is extremely dangerous.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in particular, a method of suspending a suspended scaffold capable of attaching and detaching a suspended scaffold with one touch and carrying it very safely. The purpose is to provide metal fittings.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a hanging metal fitting for a hanging scaffold according to the present invention is provided at a lower end thereof.
Provided at the upper end of the vertical frame of a suspended scaffold with a scaffold floorboard
A receiving bracket and one end rotatably connected to the receiving bracket.
And a tightening washer is attached to the other end.
Extending in the direction perpendicular to the axis of the suspension
And tightening bolts. And the vertical frame and tightening
With the gripping part of the washer, the hanging support member is
The hanging scaffold is suspended by holding
It is configured so that it can be hung on a material. This hanger
The side brackets of the mounting brackets have lateral slides on their sides.
And the side of the receiving bracket in the direction perpendicular to the axis of this horizontal slit.
From the bottom to the bottom as well as the horizontal slit
Vertical slits are formed, and the bottom is vertical
The axis protrudes vertically. In addition, tightening of this hanging bracket
One end of the bolt is inserted into the receiving bracket through the lateral slit.
As well as a stopper at one end
This stopper has one end
A hole into which the longitudinal axis protruding from the bottom of the receiving bracket can be inserted.
Has formed. Then, tighten the tightening bolt with the vertical
When rotated to extend along the vertical frame from the
The vertical axis protruding from the bottom of the receiving bracket is
It is configured so that it can be inserted into the hole.

[0008]

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a suspension scaffold according to the present invention.
The fitting will be described with reference to one embodiment shown in the drawings. Hanging feet
When the place 1 is suspended from the suspension receiving member 2 and installed,
At the upper end of the vertical frame 3 for a scaffold having a floor plate 8 for a scaffold
The hanging bracket 11 (see FIGS. 1 to 6) to be used
Fitting 13 provided at the upper end of the
3 is rotatably connected at one end to the other end.
The fastening washer 14 is attached, and the
Tightening bolt extending in the direction perpendicular to the axis of the suspension receiving member 2
16. And vertical frame 3 and fastening washer
14 and the holding portion 14b, the suspension receiving member 2 is
To suspend the suspended scaffolding 1
It is configured so that it can be installed hanging on the member 2. This hanging
The metal fitting 13 of the metal fitting 11 is laterally connected to the side thereof.
The continuous horizontal slit 17 and the axis perpendicular to the horizontal slit 17
Direction from the side of the receiving bracket 13 to the bottom 13a
And a vertical slit 18 continuous with the horizontal slit 17
And a vertical axis 19 is perpendicular to the bottom 13a.
It protrudes directly. In addition, the tightening bolts of the
One end of the bracket 16 is connected to the receiving bracket 13 through the lateral slit 17.
And one end of the stopper
Par 20 is attached, and this stopper 20
Has one end protruding from the bottom 13a of the receiving bracket 13.
The shaft 19 has a hole 20a into which the shaft 19 can be inserted. And tighten
Attach bolt 16 from vertical slit 18 of bottom 13a to vertical frame
3 when it is rotated to extend along
The vertical axis 19 protruding from the bottom 13a of the third unit 3
-20 can be inserted into the hole 20a. Incidentally, FIGS. 1-6 show an embodiment of the present invention, the scaffold 1 hanging in FIG is installed hanging from the <br/> the Ri steel field as suspending receiving member 2. And the following suspension receiver
The member 2 will be described as a steel beam 2.

The hanging scaffold 1 has a vertical frame 3 on the side of the steel beam 2.
Are erected at predetermined intervals in the axial direction of the steel beam 2.
The steel beam 2 side (work surface side) is connected to the lower frame 4 and the connecting member 5, and the lower frame 4, the middle frame 6, and the handrail 7 are provided on the rear side and the side.
Are wound in order from bottom to top, and a steel floor plate 8 is laid inside the lower frame 4, and further, the lower frame 4, the middle frame 6, and the handrail 7 on the rear side are provided.
A vertical bar 9 is interposed between the lower frame 4, the middle frame 6, the handrail 7, and the vertical frame 3.

In particular, the upper end a of the left and right diagonal member 10 is connected to the left and right vertical frames 3 so as to be rotatable, and the lower end b and the intermediate portion c are separated from the lower frame 4, the middle frame 6, and the handrail 7. Further, the lower frame 4, the middle frame 6, and the rail frame 7 side end d of the handrail 7 are rotatably connected to the vertical frame 3, respectively, so that the suspended scaffold 1 is shown in FIG. So that it can be easily folded.

In order to fold the suspension scaffold 1, first, the lower end b and the middle part c of the right and left diagonal members 10 are separated from the lower frame 4, the middle frame 6 and the handrail 7, respectively, and the vertical bar 9 is separated from the middle frame 6 and the handrail. Disconnect from 7.

Next, the left and right diagonal members 10 are rotated downward about the connecting portion with the vertical frame 3 so as to be attached to the left and right vertical frames 3, respectively, and the lower frame 4, the middle frame 6 and the handrail 7 on the side are removed. By rotating the connecting portion with the vertical frame 3 upwardly along the left and right vertical frames 3, the whole can be folded flat as shown in FIG. 2B.

The suspension scaffold 1 thus constructed is suspended from a steel beam 2 by means of suspension fittings 11. The hanging bracket 11 is a receiving bracket 13 which is screwed to the upper end of the vertical frame 3 with a plurality of screw members 12, and extends above the steel frame 2 in a direction perpendicular to the axis of the steel frame 2, and has one end on the receiving bracket 13. And a tightening bolt 16 to which a tightening washer 14 and a tightening nut 15 are attached at the other end.

The receiving member 13 is formed in a U-shape when viewed from the top, and has a lateral slit 17 formed in the side portion and extending laterally from the distal end to both sides. Also the bottom 13
The vertical slit 18 is formed in the bottom part 13a in the direction perpendicular to the axis of the horizontal slit 17 and continuous with the horizontal slit 17. Further, a vertical axis 19 is vertically provided as a projection on the bottom portion 13a.

The receiving bracket 13 thus formed has its U-shaped distal end directed toward the steel beam 2, and its proximal end is screwed to both sides of the vertical frame 3 with a plurality of screw members 12. Thereby, it is attached to each of the upper end portions of the left and right vertical frames 3.

The tightening bolt 16 is a long bolt, and one end is inserted into the receiving bracket 13 through the lateral slit 17.
At one end of the tightening bolt 16, a stopper 20 is provided so as not to come off from the horizontal slit 17 and the vertical slit 18.
Is attached.

The retaining stopper 20 is connected to the receiving bracket 13.
The contact portion with the U-shaped tip portion is formed in an arc shape and has a substantially semicircular cross section. A hole 20a into which the longitudinal axis 19 can be inserted is formed at one end of the stopper 20.

Since the receiving bracket 13 and the stopper 20 are formed in this manner, the fastening bolt 1
6 can rotate about 180 ° in the horizontal slit 17 in the horizontal direction, and move from the horizontal slit 17 to the vertical slit 18;
Rotate the vertical slit 18 90 degrees downward from the horizontal state,
It can be erected along the vertical frame 3.

Further, by inserting the longitudinal axis 19 into the hole 20a, the tightening bolt 16 can be housed along the vertical frame 3 so as not to sway. The tightening washer 14 is the tightening bolt 1
6 can be freely moved in the axial direction.
6 is formed to have a cylindrical portion 14a through which the wire 6 passes and a grip portion 14b which grips the edge of the upper flange 2a of the steel beam 2. Also, a wing nut that can be easily turned by hand is used as the tightening nut 15.

The tightening bolt 16 and the tightening nut 1
If a so-called double thread structure is used as 5,
The tightening of the tightening nut 15 can be performed quickly, and work efficiency is improved.

In such a configuration, when the hanging scaffold 1 is stored or transported with a shoulder,
The tightening bolt 16 includes the tightening washer 14 and the tightening nut 15.
Is attached to the vertical frame 3 and the longitudinal axis 19 of the receiving bracket 13 is inserted into the hole 20 a of the stopper 20.

By doing so, the tightening bolt 16 can be fixed together with the tightening washer 14 and the tightening nut 15 so as not to swing, and the hanging scaffold 1 can be carried very safely.

When the tightening bolt 16 is attached to the vertical frame 3, one end of the tightening bolt 16
Since it is inserted into the receiving fitting 13 from the position 8, the lateral deflection of the tightening bolt 16 can be prevented to some extent even if the longitudinal axis 19 is not intentionally inserted into the hole 20a.

Next, in order to suspend the suspension scaffold 1 under the steel beam 2 (see FIGS. 6 (a) to 6 (d)), firstly, the fastening bolt 16 is lightly lifted upward to prevent the stopper 20 from coming off. The vertical axis 19 is pulled out of the hole 20a (FIG. 6a),
(B)).

Next, the tightening bolt 16 is raised to the steel beam 2 side, moves from the vertical slit 18 to the horizontal slit 17, and extends horizontally on the steel beam 2 in a direction perpendicular to the axis thereof (FIG. 6 (c)). reference).

Next, the clamping washer 14 is moved to the steel beam 2 side to press the grip portion 14b against the edge of the upper flange 2a of the steel beam 2, and the clamping nut 15 is strongly tightened to the steel beam 2 side. The upper flange 2a of the steel beam 2 is strongly clamped from both sides between the fastening washer 14 and the receiving bracket 13 (see FIG. 6D). In this way, the suspension scaffold 1 can be very easily and reliably installed under the steel beam 2.

[0028]

The present invention has the above-described structure,
In particular, brackets fixed to the upper end of the suspended scaffold
The transverse slits continuous in the transverse direction, has a longitudinal slit continuous in the direction perpendicular to the axis of the lateral slit with contiguous with the lateral slit in the bottom, respectively, and the clamping nut on the other end when tightening the clamping nut simultaneously One end of a tightening bolt having a tightening washer that moves to the receiving bracket side is inserted into the receiving bracket from the lateral slit, and a stopper is attached to one end side. When attached to the vertical frame, one end of the tightening bolt is inserted into the receiving bracket from the vertical slit. Therefore, when transporting a hanging scaffold, etc., the tightening bolt does not hang around in the direction perpendicular to the axis of the vertical slit. Can be prevented.

In particular, by inserting the projection (vertical axis) into the hole of the retaining stopper, it is possible to reliably prevent the tightening bolt from swaying in any direction, so that the suspension scaffold can be transported extremely safely. .

Further, since a tightening nut is provided on the other end of the tightening bolt, and the tightening nut is tightened, the tightening nut has a tightening washer which moves to the receiving bracket side and clamps the suspension receiving member with the receiving bracket. With the operation described above, the attachment and detachment of the suspended scaffold can be performed with one touch, and workability is extremely good.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an installation state of a hanging scaffold.

FIGS. 2A and 2B show a suspended scaffold, wherein FIG. 2A is a perspective view showing an expanded state, and FIG. 2B is a perspective view showing a folded state.

FIGS. 3A and 3B show a hanging bracket of a hanging scaffold, wherein FIG.
(B) is a side view.

FIGS. 4A and 4B are perspective views of a receiving bracket and a tightening bolt.

5 (a) is a plan view, and FIG. 5 (b) is a sectional view taken along the line II in FIG. 5 (a).

FIGS. 6A to 6D are perspective views showing the operation of the hanging bracket.

FIG. 7 is a perspective view showing a conventional hanging scaffold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suspended scaffold 2 Steel beam (suspension receiving member) 3 Vertical frame 4 Lower frame 5 Connecting material 6 Middle frame 7 Handrail 8 Steel floor plate 9 Vertical bar 10 Diagonal material 11 Suspension fitting 12 Screw member 13 Receiving fixture 14 Tightening washer 15 Tightening nut Reference Signs List 16 Tightening bolt 17 Horizontal slit 18 Vertical slit 19 Vertical axis (projection) 20 Retaining stopper a Upper end of diagonal material b Lower end of diagonal material c Middle part of diagonal material d Lower frame, middle frame and railing side of handrail edge

Claims (1)

(57) [Claims] 1. A vertical frame for a scaffold having a floor plate for a scaffold at a lower end when the hanging scaffold is suspended from a suspension receiving member .
A hanging metal fitting provided at an upper end of the vertical frame; a metal fitting provided at an upper end of the vertical frame;
Tool with one end rotatably connected to the other end
A fastening washer is attached and suspended on the suspension receiving member.
Tightening bolts extending in the direction perpendicular to the axis of the receiving member
The vertical frame and the holding portion of the fastening washer
By clamping the member in the direction perpendicular to its axis,
The suspension scaffold should be suspended from the suspension receiver.
The receiving bracket has a lateral slide that is laterally continuous on its side.
And the side of the receiving bracket in the direction perpendicular to the axis of this horizontal slit.
From the bottom to the bottom as well as the horizontal slit
And vertical slits that are formed on the bottom, respectively.
Has a vertical axis projecting vertically, and the fastening bolt receives one end side from the horizontal slit.
While being inserted into the bracket,
A topper is attached, and this stopper
Is inserted at one end with a vertical axis projecting from the bottom of the receiving bracket.
A hole that can be inserted is formed, and the tightening bolt is inserted into the vertical slit through the vertical slit at the bottom.
When rotated so as to extend along the frame, the catch
The vertical axis protruding from the bottom of the tool
A hanging metal fitting for a hanging scaffold, which is configured to be inserted into a hole .