JP2995006B2 - Building and scaffolding connection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a connector for connecting a scaffold to a building. In particular, the invention relates to a connector for connecting a scaffold to concrete of a building.

[0002]

2. Description of the Related Art A scaffold is fixed at a predetermined distance from an outer wall of a building. The scaffold is connected to the building with a connector so that it does not fall. The optimum distance between the building and the scaffold is about 40 cm in terms of work efficiency. However, if an eaves, a veranda, or the like protrudes outside the building, it is fixed away from the building so as not to contact it. For this reason,
The distance between the scaffold and the building is not always constant, and may be more than 2 meters for long distances.

[0003] In order to connect the scaffolding by adjusting the distance from the building, the connecting device shown in FIG. 1 is used. 2, the anchor 1 is screwed into the building 3 and fixed. The anchor bolt 1 has a structure in which a male screw rod 1B is screwed into a screw cylinder 1A so that it can expand and contract. The screw tube 1A is connected to the screw portion of the anchor bolt 1 screwed into the building 3, and the male screw rod 1B
The clamp 2 is connected to the tip of the. Clamp 2
Scaffolding 4 arranged vertically or horizontally parallel to building 3
Are rotatably connected via a connection shaft 5 parallel to the anchor bolt 1 so as to be able to be clamped.

[0004]

The connecting device shown in FIG.
With the anchor bolt 1 screwed into the building 3, the male screw rod 1B can be rotated to adjust the distance between the building 3 and the building 4. However, it is difficult to increase the length adjustment range of the connecting device having this structure. This is because if the adjustment range is increased, the total length becomes longer, and the building 4 cannot be brought close to the building 3 to be connected. Currently available couplers have a length adjustment range of about 6 cm. Due to the narrow range of adjustment, it is necessary to connect the scaffold to the building using multiple types of connectors with different total lengths. For this reason, it is necessary to use a dedicated connecting tool depending on the distance between the scaffold and the building. The connecting devices connect the scaffold to the building at intervals of several meters in the vertical and horizontal directions, so that in a large building, the number of connecting devices is considerable.
If a large number of connecting tools are prepared in a plurality of types having different lengths, an extremely large number of connecting tools are required as a whole.

Further, it is difficult for the connecting tool having the structure shown in FIG. 1 to increase the total length of the anchor bolt 1 to 1 meter or more. If the length is long, the whole weight becomes extremely heavy. For this reason, when the distance between the building 3 and the scaffold 4 is as far as 2 meters, as shown in FIG. 3 , the intermediate pipe 6 is connected to the tip of the connecting tool, and the extension pipe 7 is connected to the intermediate pipe 6. It was necessary to connect the scaffold 4 to the tip of the extension pipe 7. Therefore, it was necessary to use two connecting tools to connect one place of the scaffold to the building, and the construction was extremely troublesome. was there.

Further, in the connecting device shown in FIG. 1, since the male screw rod 1B is screwed into the screw cylinder 1A to expand and contract, if concrete or foreign matter adheres to the surface of the male screw rod 1B, the length cannot be adjusted smoothly. This is because a foreign object is caught in the screw portion between the male screw rod 1B and the screw cylinder 1A. In order to prevent this adverse effect, the connecting tool of FIG.
The portion of the male screw rod 1B is covered with the bellows 8. However, the bellows 8 cannot eliminate the adhesion of foreign matter at all.
Further, the anchor bolt 1 having the bellows 8 makes it difficult to quickly rotate the male screw rod 1B. This is because the bellows 8 is removed, the rod is inserted into the through hole 9 provided between the male screw rod 1B and the clamp 2, and the male screw rod 1B is rotated.

Further, the connecting tool shown in FIG. 1 has disadvantages that the whole structure is complicated, the manufacturing cost is considerably high, and it is difficult to mass-produce at low cost. In particular, there is a disadvantage that the total cost is extremely high because the number of used and prepared pieces increases.

[0008] The present invention has been developed to solve this drawback. It is an important object of the present invention to provide a building and scaffolding connector that can significantly adjust the spacing between the building and the scaffold without replacing the connector. It is a further important object of the present invention to provide a building-scaffolding connector that can be mass-produced at a low cost and that can increase the distance between the scaffold and the building to reduce the overall weight. Still another object of the present invention is to provide a building-scaffolding connector that can quickly adjust the gap between the building and the scaffold.

[0009]

According to the present invention, there is provided a connecting device between a building and a scaffold according to the present invention. The connecting tool includes a clamp 2 connected to the scaffold 4 and an anchor bolt 1 connecting the clamp 2 to one end and screwing and connecting to the building 3 at the other end.

[0010] Further, the connecting device between a building and a scaffold according to the present invention includes:
The clamp 2 is rotatably connected to the anchor bolt 1 via a connecting shaft 5 orthogonal to the axial direction of the anchor bolt 1. As shown in FIG. 3, the clamp 2 connected so as to be rotatable in this direction can be connected by sandwiching the extension pipe 7, so that the scaffold 4 can be connected via the extension pipe 7. The clamp 2 can adjust the total length of the extension pipe 7 and adjust the distance between the building 3 and the scaffold 4.

[0011] Further, the connecting device between the building and the scaffold according to the present invention comprises:
A plurality of connection holes 10 are provided at the tip of the anchor bolt 1 so as to be able to adjust the distance between the building 3 and the scaffold 4 with the anchor bolt 1. The connection hole 10 for connecting the connection shaft 5 is selected, and the connection position of the clamp 2 is moved in the axial direction to adjust the distance between the building 3 and the scaffold 4.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a connecting tool between a building and a scaffold for embodying the technical idea of the present invention, and the present invention does not specify the connecting tool to the following.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”. However, the members described in the claims are not limited to the members of the embodiments.

The connecting device between the building and the scaffold shown in FIG. 4 to FIG. 7 connects the clamp 2 connected to the scaffold via the extension pipe 7 or directly, and connects the clamp 2 to one end.
The other end is an anchor bolt 1 which is screwed and connected to the building 3
And

The clamp 2 has a distal end which is rotatable through a connecting shaft 5 orthogonal to the axial direction of the anchor bolt 1 so that an extension pipe 7 extending in parallel with the anchor bolt 1 can be clamped. It is connected to. The clamp 2 is connected so as to be rotatable about a connection shaft 5 as shown by an arrow A in FIG.

The anchor bolt 1 has a male screw at the tip. The male screw is screwed into an anchor 13 embedded in the building 3 to connect the anchor bolt 1 to the building 3.
The rear end of the anchor bolt 1 is pressed in a plate shape to connect the clamp 2. The plate portion penetrates and opens a connection hole 10 of the clamp 2. The clamp 2 is connected to the anchor bolt 1 via a bolt and a nut, which are connection shafts 5 inserted into the connection holes 10. Instead of the bolt and the nut, the clamp 2 can be connected to an anchor bolt via a connecting shaft having flanges at both ends.

As shown in FIG. 8, a plurality of connecting holes 10 can be provided in the plate-like portion of the anchor bolt 1 so as to be spaced apart in the axial direction. In the anchor bolt 1 having this structure, the connection position of the clamp and the anchor bolt 1 can be moved in the axial direction by selecting the connection hole 10 into which the connection shaft is inserted. In particular, since the connection holes 10 of the anchor bolt 1 having this structure are continuous with each other, the connection shaft is not pulled out from the connection hole 10 without being pulled out.
The connecting hole 10 for setting the connecting shaft can be moved in the axial direction.
For this reason, the connecting hole 10 into which the connecting shaft is inserted can be easily changed.

The clamp 2 is, as shown in FIGS. 6 and 7,
A main body 2A connected to the anchor bolt 1;
A, a clamping piece 2B connected to the opening and closing via a pin 11, a clamping bolt 2C for clamping a pipe between the clamping piece 2B and the main body 2A, and a nut screwed into the clamping bolt 2C. It has 2D. The main body 2A and the holding piece 2B
The portion that contacts the pipe is curved into a shape that follows the pipe. The fastening bolt 2C is connected to the main body 2A via a tilting piece 2E so as to be tiltable. FIG. 6 shows the tilting piece 2E.
Is connected to the left end of the main body 2A via the pin 12. The tilting piece 2E is provided with a through hole through which the locking bolt 2C is inserted, and the locking bolt 2C is inserted through this through hole.
The through hole is smaller than the head of the fastening bolt 2C and larger than the screw portion. The holding piece 2B is provided with a U groove into which the fastening bolt 2C is inserted.

The clamp 2 having this structure includes a fastening bolt 2C
To open the clamping piece 2B, and clamp the pipe between the clamping piece 2B and the main body 2A. In this state, the fastening bolt 2C is inserted into the U groove of the holding piece 2B, and the nut 2D is tightened to hold the pipe between the holding piece 2B and the main body 2A.

The connector having the above structure connects a scaffold to a building as described below. An anchor 13 is buried in a concrete surface of the building 3 at a position where the connecting tool is to be connected. Anchor 1 buried in building 3
3, the distal end of the anchor bolt 1 is screwed, and the anchor bolt 1 is connected to the building 3. When the distance between the building 3 and the scaffold 4 is small, as shown in FIG. 9, the vertical pillar or the horizontal pillar of the scaffold 4 is directly clamped by the clamp 2 connected to the tip of the anchor bolt 1. At this time, the anchor bolt 1 shown in FIG.
Is selected, the position at which the clamp 2 is connected to the anchor bolt 1 can be adjusted.

When the distance between the building 3 and the scaffold 4 is wide, the extension pipe 7 is clamped by the clamp 2 as shown in FIGS. The extension pipe 7 extends parallel to the anchor bolt 1 in the horizontal direction and is connected thereto.

The extension pipe 7 is connected to the scaffold 4. The extension pipe 7 and the scaffold 4 are connected orthogonally to each other.
A commercially available connecting part 14 for connecting pipes at right angles can be used. This connecting part 14 is shown in FIG.
As shown in FIG. 11 and FIG. 11, two clamps 2 can be connected via a pin so as to be rotatable, or two clamps 2 can be connected at right angles so as not to rotate. The connecting parts 14 shown in FIG. 10 and FIG.
Are connected so as to be rotatable. The connecting part 12 of this structure can connect pipes in parallel or orthogonally.

[0023]

As described above, according to the present invention, even if the distance between the building and the scaffold is largely different, the same scaffold can be used for the building without using a special connecting tool. There is a feature that can be connected. This is because the connecting tool of the present invention can clamp the scaffold directly with the clamp, or clamp the extension pipe with the clamp, and connect the scaffold via the extension pipe. Scaffolds connected via extension pipes
By changing the position where the extension pipe is clamped, the distance between the building and the scaffold can be significantly changed. In particular, since many pipes are used at the construction site that connects the scaffold to the building, there is no need to prepare special pipes for the extension pipes, and use pipes used for other purposes together,
Buildings and scaffolds can be connected.

The connecting device of the present invention, which can connect a scaffold to a building via an extension pipe, can have a simple structure and a light extension tube. For this reason, when connecting a scaffold far from a building, there is a feature that a light connecting tool and an extension pipe can be used to easily and safely perform construction.

Furthermore, the connecting device of the present invention does not need to rotate the tightening bolt to expand and contract as in the related art, and changes the position where the extension pipe is clamped by the clamp, or connects the clamp with the anchor bolt. Can be adjusted to adjust the distance between the building and the scaffold to an optimal value. For this reason, there is a feature that the distance between the building and the scaffold can be easily, easily, and quickly changed to connect the scaffold to the building.

[Brief description of the drawings]

FIG. 1 is a side view showing a conventional connecting device between a building and a scaffold.

FIG. 2 is a side view showing a state where a scaffold is connected to a building using a conventional connecting tool.

FIG. 3 is a plan view showing a state where a scaffold is connected to a position far away from a building using a conventional connecting tool.

FIG. 4 is a side view showing a state where a scaffold is connected to a building with the connecting device according to the embodiment of the present invention.

FIG. 5 is an enlarged side view of a main part of FIG. 4;

FIG. 6 is a side view of the coupler used in FIG. 4;

FIG. 7 is a plan view of the coupler shown in FIG. 6;

FIG. 8 is a plan view showing another embodiment of the anchor bolt.

FIG. 9 is a plan view showing a state in which the connector according to the embodiment of the present invention is directly connected to a scaffold.

FIG. 10 is a front view showing connecting parts for connecting pipes at right angles.

11 is a front view showing a state where the clamp of the connecting part shown in FIG. 10 is rotated.

[Description of Signs] 1 ... Anchor bolt 1A ... Screw tube 1B ... Male thread rod 2 ... Clamp 2A ... Main body 2B ... Nipping piece 2C ... Tightening bolt 2D ... Nut 2E ...
Tilting piece 3 ... Building 4 ... Scaffold 5 ... Connection shaft 6 ... Intermediate pipe 7 ... Extension pipe 8 ... Bellows 9 ... Through hole 10 ... Connection hole 11 ... Pin 12 ... Pin 13 ... Anchor 14 ... Connection parts 15 ... Pin

Claims (1)

(57) [Claims] 1. A clamp (2) connected to a scaffold (4), and an anchor bolt (1) connected to one end of the clamp (2) and screwed into the building (3) at the other end. In the connecting device between the building and the scaffold, an anchor bolt (1) is provided so that the clamp (2) can rotate through a connecting shaft (5) orthogonal to the axial direction of the anchor bolt (1).
It is connected to the tip Rutotomoni, the tip of the anchor bolt (1), a plurality apart in the axial direction communicating
A connecting hole (10) is provided to connect the connecting shaft (5).
Select (0) to move the connection position of clamp (2) in the axial direction.
Buildings and scaffolds characterized by being configured to be capable of
Connector.