JP6936764B2 - Angle regulator for scaffolding and scaffolding stabilization structure - Google Patents

Description

The present invention relates to an angle regulator for preventing scaffold sliding and a stabilizing structure for preventing scaffold sliding and subsidence.

FIG. 6 shows a conventional scaffold stabilization structure.
When assembling a scaffold binding type scaffold, Non-Patent Document 1 describes the following criteria as a structure for preventing the scaffold from slipping.
(1) Provide roots c of a member different from the horizontal lumber b in each of the girder direction and the beam-to-beam direction.
(2) The root entanglement c should be installed as close to the ground as possible and tied to each support column a with a binding part.
(3) For the root entanglement c in the girder direction, the scaffolding steel pipe should be straddled over at least three or more columns a, and attached using a connecting tool c1 such as a binding metal fitting or a single pipe joint. (See FIG. 6 (a))
(4) When the screw tube type jack base d at the bottom of the support column a is fixed to the floor plate e with two or more nails f or the like, the root entanglement c in the girder direction may be omitted. (See FIG. 6 (b))

In this way, in order to prevent the scaffolding from slipping, the roots are arranged so as to straddle at least three or more columns, or the jack base is nailed to the floor plate to fix the position of the columns. It was necessary to keep it.

[Revised Edition] Technical Standards for Assembling and Using Wedge-Binding Scaffolds, Temporary Industry Association, June 30, 2015

However, the above-mentioned conventional method solves at least one of the following problems.
(1) Long roots are required.
As a root, a long lumber with a length of 2 spans or more must be prepared. Since long materials lead to deterioration in transportability and handleability, there is still room for improvement in the selection of members.
(2) Nail fixing work at the time of assembly and nail pulling work at the time of disassembly require labor and time.
Since both the nailing work and the nail pulling work are performed in a low place with respect to the floor plate, the burden on the worker is heavy. It also leads to longer assembly time and disassembly time.

Therefore, an object of the present invention is to provide a means for preventing the scaffold from slipping without arranging the roots and nailing the jack base to the base plate.

The first invention of the present application, which has been made to solve the above problems, is an angle regulator provided at the bottom layer of a support column constituting a scaffold, which connects a horizontal member in the girder direction and a horizontal member in the beam direction. , The linear connecting part and both ends of the connecting part are joined, and the horizontal member in the girder direction is attached and detached on one end side, and the horizontal member in the beam direction is attached and detached on the other end side. Have at least two receiving portions, which regulate the plane viewing angle between the horizontal members at substantially right angles while keeping the same height, and each receiving portion has a horizontal member to be accommodated in the receiving portion. A retaining portion is provided to prevent the horizontal member from coming off by joining the horizontal member in a direction orthogonal to the longitudinal direction of the horizontal member, which is below the horizontal member. position of the stopper portion, the exit from the junction portion between the contact portion and the receiving portion provided with a stopper portion, longitudinal to a direction and the axis of the contact portion and the horizontal member of the receiving part accommodating the horizontal member It is characterized in that it is separated on the blunt angle side when the axes of and are crossed in a horizontal view.
Further, the second invention of the present application is a scaffolding stabilizing structure, in which a horizontal member in the girder direction and a horizontal member in the beam direction, which are provided in the lowermost layer of the support column constituting the scaffolding and are connected to the support column, are connected to each other. The angle regulator according to the first invention, which regulates the angle between the horizontal members at a substantially right angle, is included, and the angle regulator prevents the scaffold from sliding and at least three in the girder direction. It is characterized in that no scaffolding having a length straddling the above-mentioned plurality of columns is arranged.
Further, the third invention of the present application is characterized in that, in the second invention, a subsidence preventing material, which is installed under the jack base constituting the scaffold in a manner not fixed to the jack base, is further included. do.

According to the present invention, the effects described below are obtained.
(1) The scaffold can be prevented from slipping.
By attaching a detachable angle regulator so as to bridge between the horizontal members in the girder direction and the beam direction and restricting the plane viewing angle between the horizontal members at a substantially right angle, it is possible to prevent the scaffold from sliding.
(2) There is no need to install roots or nail them to the floor board.
Since the angle regulator can prevent the scaffold from slipping, there is no need to provide roots, and there is no need to nail the jack base to a sinking prevention material such as a floor plate, so work efficiency during assembly and disassembly is improved. improves.
(3) It is possible to prevent the angle regulator from coming off.
By providing the retaining portion in the angle regulator, the horizontal member and the angle regulator are not separated from each other, and the angle regulation between the horizontal members can be more effectively performed.

The schematic plan view of the angle regulator which concerns on this invention. Schematic perspective view of the retaining portion. The schematic plan view which shows the mounting state of the angle regulator. The schematic plan view which shows the modification of the angle regulator. The schematic perspective view which shows the stabilization structure of the scaffold which concerns on this invention. The schematic perspective view which shows the stabilization structure of the conventional scaffolding.

Hereinafter, examples of the present invention will be described with reference to the drawings.

First, the angle regulator A according to the present invention will be described.

<1> Overall configuration (Fig. 1)
FIG. 1 is a schematic front view of the angle regulator A according to the present invention.
The angle regulator A is a member provided in the lowermost layer of the support column constituting the scaffold to connect between the horizontal lumber in the girder direction and the horizontal lumber in the beam direction to exert the function of a so-called flint material.
The angle regulator A mainly includes at least a connecting portion 10, a first receiving portion 20a, and a second receiving portion 20b.
The details of each part will be described below.

<2> Liaison section (Fig. 1)
The communication unit 10 is a member for connecting and communicating the first receiving unit 20a and the second receiving unit 20b, which will be described later.
In this embodiment, the connecting portion 10 is made of a steel pipe, and the first receiving portion 20a is joined to one end of the steel pipe and the second receiving portion 20b is joined to the other end by welding.

<2.1> Shape of the connecting portion In the present invention, the shape of the connecting portion 10 is not particularly limited.
That is, the connecting portion 10 may be a member having a linear shape, a member having a plurality of sides, or a member having a curved shape.
In this embodiment, the connecting portion 10 is composed of a diagonal member having an internal angle of about 45 ° with respect to each horizontal member, and each horizontal member and the connecting portion 10 have a substantially right-angled isosceles triangle shape. ..

<3> First receiving part / second receiving part (Fig. 1)
The first receiving portion 20a and the second receiving portion 20b (hereinafter, also simply referred to as “receiving portion 20”) are attached to and detached from the horizontal member located at the bottom layer (immediately above the jack base) of the columns constituting the scaffold. It is a member for.

<3.1> Types of attachment / detachment mechanism As the attachment / detachment mechanism of the receiving portion 20 to the horizontal member, a known attachment mechanism such as a fitting type, a narrow holding type, or a gripping type can be adopted.
In this embodiment, the receiving portion 20 is fitted into a fitting type, the first receiving portion 20a is fitted into the horizontal member in the girder direction from above, and the second receiving portion 20b is fitted into the horizontal member in the beam direction from above. It is configured to be crowded.

<3.2> Configuration example of receiving portion In the receiving portion 20 according to the present embodiment, the accommodating portion 30 for fitting and accommodating the horizontal member and the wedge 43 for accommodating the horizontal member in the direction orthogonal to the longitudinal direction are driven into the accommodating portion 20. It has at least a retaining portion 40 for preventing the horizontal member housed in the portion 30 from coming off.
The details of each part will be described below.

<3.3> Accommodating section The accommodating section 30 is a member for accommodating a horizontal member to be detached.
The shape of the accommodating portion 30 may be any shape as long as it can accommodate the horizontal lumber.
In this embodiment, the accommodating portion 30 is composed of a U-shaped plate having an open lower portion when viewed from the longitudinal direction of the horizontal member to be attached / detached.
If the length of the accommodating portion 30 is extremely short, it is difficult to exert the restraining effect of the accommodating horizontal member. Therefore, the accommodating portion 30 should be extended from the joint portion with the connecting portion 10 so as to have a certain margin. Is preferable.
In this embodiment, the extending direction of the accommodating portion 30 is a direction away from the joint portion between the connecting portion 10 and the receiving portion to the outside.

<3.4> Retaining part (Figs. 1 and 2)
The retaining portion 40 is a portion for preventing the retaining portion 20 and the horizontal member from coming off.
The retaining portion 40 according to the present invention can be selected from wedge coupling, clamp coupling, and bolt coupling.
In this embodiment, the retaining portion 40 is configured by a wedge bond.
Further, it is preferable that the wedge of the retaining portion 40 is attached so as to be integrated with the receiving portion in that the wedge can be prevented from being lost.

<3.4.1> Configuration example of retaining portion (Fig. 2)
The details of the configuration of the retaining portion 40 according to this embodiment will be described with reference to FIG.
The retaining portion 40 shown in FIG. 2 has a facing wall 41 formed of a U-shaped plate provided so as to project laterally from the side wall of the accommodating portion 30, and a shaft portion 42 arranged so as to connect between the facing walls 41. A wedge 43 having a groove 431 slidable and rotatable along the shaft portion 42 inside, and an insertion hole 44 penetrating the outer and inner side walls of the accommodating portion 30, respectively. It is composed of.
In the retaining portion 40 before use, the shaft portion 42 is close to the groove 431 on the tip end side of the wedge 43, and the longitudinal direction of the wedge 43 is aligned substantially in parallel with the receiving portion 20.
When using the retaining portion 40, the wedge 43 rotated by 90 ° is inserted into the insertion hole 44 described above from the state where the horizontal member is fitted in the receiving portion 20, and the head of the wedge 43 is appropriately used with a hammer or the like. By striking and binding the portions, the opening of the accommodating portion 30 can be closed, and the horizontal member accommodated in the receiving portion 20 can be prevented from coming off or coming off.

<3.4.2> Position of the retaining part (Fig. 1)
The position of the retaining portion 40 is not particularly limited in the present invention.
In this embodiment, the retaining portion 40 is provided at a position separated from the joint portion between the connecting portion 10 and the receiving portion 20 in the direction away from the outside.
This prevents the wedge 43 constituting the retaining portion 40 from interfering with the connecting portion 10, and the connecting portion 10 does not interfere with the work when the tip of the tight wedge 43 is hit with a hammer. For reasons such as doing so.

<4> Mounting image (Fig. 3)
FIG. 3 is a schematic plan view showing an image when the angle regulator A is attached.
The horizontal members Y (Y1, Y2) shown in FIG. 3 are horizontal members provided in the lowermost layer of the columns X constituting the scaffold.
In a space in which the horizontal member Y1 in the girder direction and the horizontal member Y2 in the beam direction have a substantially rectangular shape in a plan view, angle regulators A are attached to at least two or more corners from above, and the corners are connected. Fix the angle approximately at a right angle.
In this embodiment, the angle regulator A is attached to the two corners arranged diagonally.
The angle regulator A may be used by inserting it from the bottom to the top of the horizontal lumber.

<4.1> Action and effect According to the above mounting structure, by providing two or more places where the plane viewing angle of the corner where the angle regulator A is mounted is fixed at a substantially right angle, each horizontal member Y with respect to the support column X is provided. Movement can be regulated. As a result, the sliding of the scaffold can be prevented.

<5> Other Modification Examples Other configuration examples of the angle regulator A will be described below.

<5.1> Type that can be attached and detached from the side (Fig. 4)
The angle regulator A according to the present invention may be detached from the side of the horizontal member Y.
FIG. 4A is a schematic plan view of the angle regulator according to the present modification, and FIG. 4B is a schematic front view of the angle regulator.
As shown in FIG. 4B, the angle regulator A according to this modification is provided with an opening of the accommodating portion 30 constituting the receiving portion 20 on the side and a retaining portion 40 provided on the upper portion of the accommodating portion 30. The wedge 43 can be inserted from above.
At the time of use, as shown in FIG. 4A, the angle regulator A is inserted laterally from the inside side of the space surrounded by each horizontal member Y toward the corner, and then the wedge 43 is driven in from above to be the angle regulator. A and the horizontal member Y are integrated.

<5.2> A type that does not have a retaining part (not shown)
The angle regulator A according to the present invention may have a mode in which the retaining portion 40 is omitted and the horizontal member Y is fitted and fixed in the accommodating portion 30 for a part or all of each receiving portion 20.
At this time, if the accommodating width and the opening width of the accommodating portion 30 are made narrower than the outer diameter of the horizontal member Y and the angle restricting tool A is pushed in and fitted, the angle restricting tool A can be moved from the horizontal member Y. It can be prevented from easily coming off due to vibration etc.

Next, a scaffold stabilizing structure using the angle regulator A according to the present invention will be described with reference to FIG.

<1> Stabilizing structure of scaffolding (Fig. 5)
The scaffold stabilizing structure refers to a structure for further stabilizing the scaffold by preventing the scaffold from sliding and sinking.
In the scaffolding stabilization structure shown in FIG. 5, the sinking prevention material B is installed under the jack base X1 installed in the lowermost layer of the support column X constituting the scaffold, and the girder direction provided in the lowermost layer of the support column X. The angle regulator A according to the present invention is provided between the horizontal member Y1 and the horizontal member Y2 in the beam direction.
In the scaffolding stabilization structure described above, the anti-slip function is carried out by the angle regulator A, and the settling prevention function is carried out by the settling prevention material B.
Each function will be described below.

<2> Anti-slip function The anti-slip function is carried out by the angle regulator A attached between each horizontal member Y.
Since the action and effect are the same as those in Example 1 described above, detailed description thereof will be omitted.

<3> Settlement prevention function The settlement prevention function is carried out by the settlement prevention material B provided under the jack base X1.
The subsidence prevention material B is a member that prevents the scaffold from subsidence by reducing the load load per unit area by making the ground contact area wider than the ground contact area of the jack base X1.
The subsidence prevention material B is provided with a type (FIG. 5 (a)) in which a floor board B1 which is an independent member is provided for each jack base X1 and a floor plate B2 on which a plurality of jack bases X1 are continuously placed in the girder direction. There are types and so on.

<4> Action and effect According to the above-mentioned stabilization structure, since the angle regulator A is responsible for the anti-slip function of the scaffold, it is not necessary to apply a mechanism or processing to the subsidence prevention material B to exert the anti-slip function.
In particular, when the subsidence prevention material B made of the floor plate B1 shown in FIG. 5B is adopted, it is not necessary to provide the anti-slip function by nailing the floor plate B1 and the jack base X1. Contributes to improving work efficiency during dismantling.

A: Angle regulator 10: Communication part 20a: First receiving part 20b: Second receiving part 30: Accommodating part 40: Retaining part 41: Opposing wall 42: Shaft part 43: Wedge 44: Insertion hole B: Sinking Preventive material X: Support X1: Jack base Y: Horizontal material a: Support b: Horizontal material c: Rooting c1: Connecting tool d: Jack base e: Floor plate f: Nail

Claims (3)

An angle regulator that connects the horizontal lumber in the girder direction and the horizontal lumber in the beam direction, which is provided at the bottom of the columns that make up the scaffold.
With a linear contact part,
By joining to both ends of the connecting portion, the horizontal member in the girder direction is attached and detached on one end side, and the horizontal member in the beam direction is attached and detached on the other end side, so that the connecting portion and the horizontal member are kept at the same height. , Two receiving parts that regulate the plane viewing angle between each horizontal member at a substantially right angle,
Have at least
The horizontal lumber is prevented from coming off by wedge-bonding to each of the receiving portions in a direction orthogonal to the longitudinal direction of the horizontal lumber in a plan view and below the horizontal lumber accommodated in the receiving portion. , Provide a retaining part,
When viewed in plan, the position of the retaining portion, the exit from the junction portion between the contact portion and the receiving portion provided with a stopper portion, a longitudinal receiving portion for accommodating the horizontal member and the The axis of the connecting portion and the axis of the horizontal member are separated from each other on the obtuse angle side when they intersect in a plan view.
Angle regulator for scaffolding. It ’s a scaffolding stabilization structure,
According to claim 1, a horizontal member in the girder direction and a horizontal member in the beam direction, which are provided in the lowermost layer of the support column constituting the scaffold, are connected to regulate the angle between the horizontal members at a substantially right angle. The described angle regulator and
Including at least
The angle regulator prevents the scaffold from slipping and
It is characterized in that no roots having a length spanning at least three or more columns are arranged in the column direction.
Scaffolding stabilization structure. A subsidence-preventing material, which is installed under the jack base constituting the scaffold so as not to be fixed to the jack base, is further included.
The scaffold stabilizing structure according to claim 2.

Images