JP3145030B2 - Clamping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp device for connecting pipe members of a scaffold assembly used in a construction site, a construction site, and the like.

[0002]

2. Description of the Related Art A working scaffold assembly used at a construction site or the like is constructed by assembling various pipe members made of steel pipes. For example, as shown in FIG. 8, the scaffold assembly 101 has a pair of scaffold pipes 103, 1 at predetermined height positions of a plurality of support pipes 102 erected close to the building 100.
04 is horizontally assembled with a triple clamp 105, thereby forming a scaffold for an operator to perform construction work.

[0003]

However, in such a scaffold assembly 101, workability is poor because the front and rear width of the scaffold is narrow, and the scaffold slides down when the scaffold gets wet with rain or the like. There is a problem that there is a danger that it is dangerous especially at high places. Further, the scaffold assembly 10 having such a structure is used.
In the case of No. 1, there is a problem that the operator cannot take a rest on the spot when the worker is tired because the assembly has no depth and there is no space.

The present invention has been made in view of the above points, and provides a clamp device that can be attached to a pipe member of a scaffold assembly to improve the safety and workability of an operator. The purpose is to:

[0005]

According to the present invention, there is provided a clamp apparatus comprising: a pair of clampers for holding a pipe member; and a connecting rod having a predetermined length provided at both ends of the clampers. And

The connecting rod is a cylindrical pipe-shaped member having an outer diameter connectable by each of the clampers. One of the clampers is fixed to the connecting rod, and the other is a central shaft of the connecting rod. By being connected rotatably in a direction perpendicular to the length direction of the connecting rod, the clamp angle with respect to the pipe material is variable.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a clamp device according to the present invention will be described below with reference to the drawings.
Each part of the clamp device 1 is made of rustproof metal, and as shown in FIG.
And a pair of clampers 3 and 4 provided at both ends of the connecting rod 2.

The connecting rod 2 is formed in a cylindrical shape and has a diameter such that it can be clamped by clampers 3 and 4 which will be described in detail later. Accordingly, the clamp device 1 can attach another clamp device 1 or a clamp fitting such as the above-described clamp fitting 105 to the connecting rod 2.

The connecting rod 2 has clampers 3 and 4 connected to both ends thereof. The clamper 3 is fixed to one end of the connecting rod 2, and the clamper 4 is provided at the other end of the connecting rod 2. 2 and 4, that is, a direction perpendicular to the length direction of the connecting rod 2 on the central axis of the connecting rod 2. .

The clampers 3 and 4 include a main body 6 (6A, 6B) having shafts 8 and 9, and an opening / closing metal 7 rotatably attached to the main body 6 by the shaft 8.
And a bolt member 10 whose base end is pivotally attached to the main body fitting 6 with a support shaft 9, and a nut 11 screwed to the bolt member 10.

As shown in FIG. 1, the main body fitting 6 has a substantially "L" shape in plan view, and has coupling surfaces 12A and 12B (see FIG. 2) coupled to the connecting rod 2, and has a substantially rectangular shape. The bottom surface 13 (see FIGS. 4 and 5) is formed, and an arc-shaped receiving surface 14 is in contact with the outer periphery of the pipe material.

The main body 6 has a support shaft 9 attached to one end of the receiving surface 14 and a distal end of the coupling surface 12, and the base 9A of the bolt member 10 is shown in FIG. It is fitted and supported rotatably in the C direction (see FIG. 3). The main body 6 has a support shaft 8 attached to the other end of the receiving surface 14 and a distal end of the bottom surface 13. The support shaft 8 allows the opening / closing metal 7 to swing open and close in the direction D shown in FIG. 2. It is pivoted on.

As shown in FIG. 1, the opening / closing fitting 7 has a substantially circular arc shape in a plane, and has a holding surface for holding and fixing the pipe material on the inner periphery thereof in cooperation with the receiving surface 14 of the main fitting 6. 15 are formed. The opening / closing member 7 has a notch 16 (see FIG. 3) into which the screw shaft 10B of the bolt member 10 can be fitted, and a nut 11 screwed to the screw shaft 10B. Receiving seats 17 (FIG. 4)
Reference) is formed.

Therefore, the clamping device 1 is a bolt member 1
By tightening the nut 11 and pressing it against the receiving seat 17 in a state where the 0 screw shaft 10B is fitted in the notch portion 16, a predetermined pipe material can be narrowed, that is, clamped, between the receiving surface 14 and the holding surface 15. it can. On the other hand, when the clamp device 1 removes the clamped pipe material,
This can be easily performed by loosening the nut 11, removing the screw shaft 10 </ b> B of the bolt member 10 from the notch 16, and opening the opening / closing fitting 7.

Next, the coupling structure of the clampers 3 and 4 will be described. The clamper 3 is fixed to the connecting rod 2 by forming the coupling surface 12A side integrally with one end of the connecting rod 2. On the other hand, as shown in FIGS. 1 and 2, the clamper 4 is rotated in the AB direction of FIGS. 2 and 4, that is, on the center axis of the connecting rod 2 by a cylindrical coupling tool 5 penetrating the coupling surface 12B. It is movably connected.

The connecting member 5 is formed integrally from the center of a circular flat portion 2A formed from the edge on the other end side of the connecting rod 2. Further, the coupling tool 5 has a main body fitting 6 at its end.
The main body 6 of the clamper 4 is not separated in the axial direction of the coupler 5 by integrally forming the retaining outward flange 18 engaging with the coupling surface 12B.

The clamping device 1 configured as described above
In a scaffold assembly constructed at a construction site or the like, the clampers 3 and 4 are attached to various pipe materials, so that various usage methods described below become possible. Note that the same parts as those in the related art will be described using the same reference numerals.

As shown in FIG. 6, for example, the clamp device 1 includes a support pipe 1 constituting a working scaffold assembly 101.
The guard body 30 for the scaffold formed by the scaffold assembly 101 can be formed by being attached to the predetermined height position 02. This guard body 30
It is composed of a pair of clamp devices 1 attached to a support pipe 102 and a guard pipe 31 attached to the other end of these clamp devices 1.

In this embodiment, the guard body 30 has the clamper 3 of the clamp device 1 attached to the support pipe 102 and the clamper 4 connected to the guard pipe 31. May be attached to the support pipe 102, and the clamper 3 may be connected to the guard pipe 31.

The guard body 30 includes scaffold pipes 103, 10
4 to form a space 32 where the front and rear width of the scaffolding assembly 101 is extended and the worker can lean on the back of the building 100 by being attached at a height position around the waist of the worker. I have. Therefore, the guard body 30 provides a spacious spread to the narrow scaffold formed by the scaffold assembly 101, thereby enabling the worker to lean backward and take a rest when the worker is tired.

Since the clamp device 1 and the guard pipe 31 also function as handrails, it is possible for an operator to work with another hand while holding the clamp device 1 or the guard pipe 31 with one hand. . Further, the guard body 30 can be used as a temporary scaffold by attaching a plate-shaped member between the connecting rods 2.

In this embodiment, the guard 30 is formed at a part of the high position of the scaffold assembly 101 by using two clamp devices 1, but the present invention is not limited to this. Instead, by attaching the clamp device 1 to each of the scaffold pipes 103 and 104 and each of the support pipes 102 and gripping the corresponding long guard pipe,
Of course, a guard body may be formed over the entire area of the scaffold assembly 101.

The clamp device 1 can also be used as a component when constructing a scaffold assembly. For example, as shown in FIG. 7, the clamp device 1 includes a plurality of support pipes 102 (102A to 10
The scaffold assembly 40 is configured by being attached in parallel to the 2D) at the same height position.

The front and rear widths of the scaffold assembly 40 are substantially the same as those of the scaffold assembly 101 described above.
Has been extended by the length of Therefore, the scaffold assembly 40
In this configuration, it is possible to bridge the scaffold plate material 33 between the connecting rods 2, thereby obtaining a wide and stable scaffold.

Further, the height of the scaffold of the scaffold assembly 40 can be easily adjusted by changing the height position where the clamp device 1 is attached.
Therefore, as shown in FIG. 7, the clamp device 1 is attached to the support pipe 102 so as to have different heights from each other, so that the scaffold plate 3
The inclined scaffold 50 can be easily formed in the scaffold assembly 40 by inclining the scaffold 3. This scaffold 50
Can be used, for example, in place of a stair for an operator to move up and down the scaffold assembly 40, and can also be used when working on an inclined roof 34 of a building.

That is, the scaffold 50 can be adjusted to the inclination of the roof 34 by adjusting the height positions of the roof 34 when the tiles are attached to the roof 34 or when the tiles are painted. Accordingly, in the scaffold 50, the positional relationship between the position of the worker's body and the roof 34 can be always kept constant, so that unnecessary movement of the worker's body is minimized, thereby reducing fatigue. Thus, on-site work is easily and efficiently performed. Furthermore, as shown in FIG. 7, if a guard body 60 is formed above the scaffold 50 so as to match the inclination of the roof 34, on-site work can be performed more safely.

As described above, according to the clamp device 1,
Since it can be used for various purposes while being small, lightweight and easy to carry, the types of clamps to be carried on site can be reduced. Further, since the clamp device 1 can be easily attached and detached, formation, removal, position adjustment, and the like of the guard body and the scaffold formed by the clamp device 1 can be easily performed.

[0028]

As described above in detail, according to the clamp device of the present invention, a pair of clampers for holding various pipe members and a connecting rod for connecting these clampers with a predetermined distance therebetween are provided. The connecting rod is a cylindrical pipe-shaped member having an outer diameter connectable by each of the clampers, and one of the clampers is fixed to the connecting rod, and the other is connected on the center axis of the connecting rod. By being rotatably connected in a direction perpendicular to the length direction of the rod, the mutual angle is variable. Therefore,
According to the clamp device, it is possible to form a space portion that expands the width of the scaffold assembly by being attached to the pipe material of the scaffold assembly, thereby improving the safety and workability of the worker. Becomes

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a clamp device according to the present invention.

FIG. 2 is a perspective view showing a state where an opening / closing bracket of the clamp device is opened.

FIG. 3 is a plan view of the clamp device.

FIG. 4 is a left side view of the clamp device.

FIG. 5 is a bottom view of the clamp device.

FIG. 6 is a partial external view of a scaffold assembly showing a use state of the clamp device.

FIG. 7 is a partial external view of the scaffold assembly showing another usage state of the clamp device.

FIG. 8 is a partial external view showing a conventional scaffold assembly.

[Explanation of symbols]

1 clamping device, 2 connecting rod, 3, 4 clamper, 5
Connection part, 6 body fittings, 7 opening and closing fittings, 30 guards, 33 scaffold plate, 101 scaffold assembly, 102 support pipes, 103, 104 scaffold pipes

Claims (1)

(57) [Claims] 1. A pair of clampers for holding a pipe member, and a connecting rod having a predetermined length provided at both ends of each of the clampers, wherein the connecting rod has an outer diameter connectable by each of the clampers. And each of the clampers is fixed to the connecting rod,
The other end of the connecting rod is rotatably connected on the center axis of the connecting rod in a direction perpendicular to the longitudinal direction of the connecting rod, so that a clamp angle with respect to the pipe material is variable.