JP2013221294A - Wall tie metal fittings for temporary scaffold and method of tying wall tie metal fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide wall tie metal fittings for a temporary scaffold that can be easily adjusted in length and can rationally tie vertical pipes.SOLUTION: There are provided wall tie metal fittings that are freely variable in length from a wall tie pipe 10 to clamp metal fittings 30 by rotating the wall tie pipe 10 around a long bolt 20. A bolt head 21 for motor operation to be mounted on an electric screwdriver P is formed at an end of the long bolt 20. A fastening nut 34 for motor operation is screwed to an end of a fastening bolt 33, provided on the clamp metal fittings 30 rockably, for connecting a lid body 32 to a main body 31. The bolt head 21 for motor operation and fastening nut 34 for motor operation are formed to have the same external shape. The bolt head 21 for motor operation and fastening nut 34 for motor operation are rotated with the electric screwdriver P.

Description

  The present invention relates to a wall anchor for a temporary scaffold used when a temporary scaffold for construction is connected to a building, and in particular, it is possible to adjust the length of the wall anchor to match the distance between the building and the temporary scaffold. The present invention relates to a wall connecting bracket for scaffolding and a method for connecting the wall connecting bracket.

  Temporary scaffolding will be built for construction of detached houses and repairs for condominiums. When this temporary scaffold is arranged around the building, a wall-connecting bracket is used to prevent the temporary scaffold from falling. One of the wall-connecting brackets is connected to a vertical pipe of a temporary scaffold with a clamp, and the other is fixed to an anchor embedded in a wall surface of a building with a fixing screw, thereby fixing the temporary scaffold to the wall surface.

  Patent Document 1 describes a commonly used type of wall connecting bracket. That is, a nut is inserted inside the pipe member, and an advance / retreat screw shaft inserted from one end of the pipe member is screwed onto the nut. Then, by rotating the advance / retreat screw shaft, the advance / retreat screw shaft can be moved forward and backward with respect to the pipe member. Furthermore, a clamp for a temporary scaffold is provided at one end of the advance / retreat screw shaft, and a fixing bolt for fixing to the wall surface of the building is provided at the other end of the pipe member.

Japanese Patent Laid-Open No. 10-205120

  However, in order to use the conventional wall-connecting metal fitting as described in Patent Document 1, there is a problem that requires a lot of work for adjusting the length of the metal fitting. In other words, this wall-connecting metal fitting selects a position suitable for fixing on the wall surface of the building, and embeds the anchor at a position where it can be connected horizontally from the vertical pipe of the temporary scaffold. Next, adjust the length of the wall connecting bracket according to the distance from the anchor to the vertical pipe, and after adjustment, screw the fixing bolt of the wall connecting bracket to the anchor and connect the clamp to the vertical pipe. Become.

  At this time, the length of the wall connecting metal fitting is adjusted by rotating the pipe member with respect to the advance / retreat screw shaft to which the clamp fitting is attached. However, the work of rotating the pipe member is a manual work, and many wall-connecting brackets are used to fix one temporary scaffold, so this length adjustment work requires a great deal of labor. It was necessary. In addition, after the fixing bolt is screwed to the anchor, it is necessary to perform a second effort to finely adjust the length of the wall connecting metal again.

  Accordingly, the present invention has been devised to solve the above-described problems, and the length of the wall connecting bracket can be easily adjusted according to the distance between the building and the temporary scaffolding. The purpose of the present invention is to provide a wall anchor for temporary scaffolding that can be reasonably connected to the scaffold and a method for connecting the wall anchor.

The first means of the present invention includes a wall connecting pipe 10 having a length adjusting nut 11 fixed inside a pipe and having a fixing bolt 12 for fixing a wall surface Q at one end of the pipe, and a clamp connected to a temporary scaffold. And a long bolt 20 that is rotatably connected to the main body 31 of the metal fitting 30 and is inserted into the inside from the other end of the wall connecting pipe 10 and screwed to the length adjusting nut 11. In the wall tie fitting in which the length from the wall tie pipe 10 to the clamp fitting 30 is configured to be extendable and retractable by 10 rotations,
The clamp member 30 of the long bolt 20 is formed with a bolt head 21 for electric operation to be attached to the electric screwdriver P at the end of the flange,
An outer shape of the same shape as that of the bolt head 21 for electric operation is provided at the end of a tightening bolt 33 that is swingably provided on the main body 31 of the clamp fitting 30 and connects the lid 32 wound around the vertical pipe to the main body. The electric operation tightening nut 34 is screwed.

  The second means includes a pipe cover 40 that covers the long bolt 20 and the wall-connecting pipe 10, and a connecting shaft 41 that penetrates the side surface of the pipe cover 40 and the long bolt 20. The pipe cover 40 is connected to the long bolt 20, and the long bolt 20 is rotated together with the pipe cover 40 by the rotation operation of the electric operation bolt head 21.

  A third connecting method is that the length adjusting nut 11 is fixed inside the pipe and a wall connecting pipe 10 having a fixing bolt 12 for fixing the wall surface Q at one end of the pipe, and a clamp for connecting to a temporary scaffold. A long bolt 20 that is rotatably connected to the main body 31 of the metal fitting 30 and that is inserted into the inside from the other end of the wall connecting pipe 10 and screwed to the length adjusting nut 11. An electric operation bolt head 21 to be attached to the electric screwdriver P at the end of the clamp member 30 of the long bolt 20 is a wall connecting member in which the long bolt 20 is configured to be extendable and contractable with respect to the connecting pipe 10. Formed and swingably provided on the main body 31 of the clamp fitting 30, the same shape as that of the bolt head 21 for electric operation is provided at the end of the fastening bolt 33 that connects the lid 32 wound around the vertical pipe to the main body. In the connecting method of a temporary scaffolding wall tether that is screwed with an electric operation tightening nut 34 having an outer shape, an anchor embedding process 100 for embedding an anchor R in the wall surface Q of the building, and fixing of the wall tether to the anchor R A fixing bolt connecting step 200 for fixing the bolt 12 to the wall surface Q by screwing the bolt 12 and an electric operation bolt head 21 of the wall connecting member connected to the wall surface Q are rotated by the electric screwdriver P. The length adjustment process 300 for adjusting the length of the connecting metal fittings, and after the length adjustment, the lid 32 is wound around the vertical pipe by rotating the electric operation tightening nut 34 of the clamp metal fitting 30 with the electric screwdriver P. And a nut tightening step 400 for tightening and fixing the electric operation tightening nut 34 so as to be coupled to the motor.

  According to a fourth means of connecting method, the length adjusting step 300 has the electric connecting bolt head 21 connected to the electric screwdriver P while holding the wall connecting pipe 10 connected to the anchor R of the wall surface Q. It is a connection method that adjusts the length of the wall-connecting metal fitting by rotating it at

  According to the first aspect of the present invention, the clamp fitting 30 of the long bolt 20 is formed with the bolt head 21 for electric operation to be attached to the electric screwdriver P at the end of the flange. The length adjustment work can be simplified with the electric screwdriver P. As a result, it is possible to adjust the length of the wall connecting fittings used in large numbers on one site reasonably in a short time.

  In addition, an end of a tightening bolt 33 that is swingably provided on the main body 31 of the clamp metal fitting 30 and connects the main body 32 with the lid 32 wound around the vertical pipe has the same shape as the bolt head 21 for electric operation. Since the electric operation tightening nut 34 having the outer shape is screwed, the electric operation tightening nut 34 can be tightened using the electric screwdriver P as it is after the length is adjusted. The mounting operation can be greatly simplified. Therefore, it has become unnecessary to perform the second labor of finely adjusting the length of the wall connecting metal again after the fixing bolt is screwed to the anchor.

  As in claim 2, a pipe cover 40 that covers the long bolt 20 and the wall connecting pipe 10 is provided, and a connecting shaft 41 that penetrates the side surface of the pipe cover 40 and the long bolt 20 is provided. By connecting the pipe cover 40 to the long bolt 20 and rotating the long bolt 20 together with the pipe cover 40 by rotating the electric operation bolt head 21, the clamp fitting connected to the long bolt 20 is configured. 30 and the pipe cover 40 are not directly connected but are connected via the long bolt 20. Moreover, since the clamp fitting 30 is connected to the long bolt 20 in a freely rotatable manner, when the clamp fitting 30 is fixed to the scaffold, the clamp fitting 30 is not easily restricted by the long bolt 20 or the pipe cover 40, and there is play. Can be linked. Even the wall-connecting metal fitting having a configuration in which the long bolt 20 is protected by the pipe cover 40 can be easily adjusted in length by the electric screwdriver P.

  An anchor embedding process 100 for embedding the anchor R in the wall surface Q of the building as in claim 3, and a fixing bolt connection for fixing the wall connecting bracket to the wall surface Q by screwing the fixing bolt 12 of the wall connecting bracket to the anchor R. Step 200, a length adjusting step 300 for adjusting the length of the wall connecting metal by rotating the bolt head 21 for electric operation of the wall connecting metal connected to the wall surface Q by the electric screwdriver P, and after the length adjustment The nut for tightening and fixing the electric operation tightening nut 34 is connected to the main body by rotating the electric operation tightening nut 34 of the clamp fitting 30 with the electric screwdriver P and connecting the lid 32 wound around the vertical pipe. The length of the wall-connecting bracket can be easily adjusted according to the distance between the building and the temporary scaffolding, and after adjustment, the vertical pipe S1 is rational. It can be connected.

  As in claim 4, while holding the wall connecting pipe 10 in the state of being connected to the anchor R of the wall surface Q, the length of the wall connecting metal fitting is reduced by rotating the electric operation bolt head 21 with the electric screwdriver P. By the connecting step to be adjusted, the length of the connecting metal fitting of the present invention can be adjusted in an extremely stable state. Accordingly, it is possible to safely perform the length adjustment work at a high place.

It is a front view which shows one Example of this invention wall connecting metal fittings. It is a principal part notch front view which shows the wall connecting pipe and long volt | bolt of this invention. It is a principal part notch front view which shows the clamp metal fitting and long bolt of this invention. It is explanatory drawing which shows the state which rotates the bolt head for electric operation of this invention with an electric screwdriver. It is explanatory drawing which shows the state which rotates the clamping nut for electric operation of this invention with an electric screwdriver. It is the schematic which shows the use condition of this invention wall connecting metal fittings. It is a block diagram which shows the connection process of this invention wall connection metal fitting method.

  According to the present invention, it is possible to easily adjust the length of the wall tether according to the distance between the building and the temporary scaffold, and after the adjustment, it is possible to rationally connect to the temporary scaffold. Achieved the purpose.

  Hereinafter, the configuration of the present invention will be described in detail with reference to the drawings. The present connecting metal fitting is used to fix the temporary scaffold S to the wall surface Q of the building (see FIG. 6). The basic configuration of the connecting metal fitting of the present invention includes a wall connecting pipe 10, a long bolt 20, a clamp metal fitting 30, and a pipe cover 40 (see FIG. 1).

  The wall connecting pipe 10 is a pipe member in which a length adjusting nut 11 is fixed inside the pipe and a fixing bolt 12 for fixing a wall surface is provided at one end of the pipe (see FIG. 1). The illustrated fixing bolt 12 is connected to a connecting shaft 13 that passes through the wall connecting pipe 10.

  The long bolt 20 is a bolt-shaped member that is inserted into the inside of the wall connecting pipe 10 from the other end and screwed to the length adjusting nut 11, and is rotatable to the main body 31 of the clamp fitting 30 connected to the temporary scaffold S. They are connected (see FIG. 3). When the wall connecting pipe 10 is rotated with respect to the long bolt 20, the length from the wall connecting pipe 10 to the clamp fitting 30 can be expanded and contracted (see FIG. 2).

  In the present invention, the clamp fitting 30 of the long bolt 20 forms an electric operation bolt head 21 to be attached to the electric screwdriver P at the flange end (see FIG. 4). And it is provided so that it can be rotated by the socket bit P1 of the electric screwdriver P. By rotating the electric operation bolt head 21, the long bolt 20 rotates and the length from the clamp fitting 30 to the wall connecting pipe 10 can be expanded and contracted. The illustrated electric operation bolt head 21 has a hexagonal shape, and a flange 21 </ b> A is formed at a boundary portion between the electric operation bolt head 21 and the long bolt 20. The end of the socket bit P1 of the electric screwdriver P is in contact with the flange 21A.

  The clamp fitting 30 is a member that is connected to the vertical pipe S1 of the temporary scaffold S, and includes a main body 31, a lid 32, a fastening bolt 33, and a fastening nut 34 for electric operation (see FIG. 5). The main body 31 is a member that rotatably connects the long bolt 20, and a lid 32 and a fastening bolt 33 are provided at both ends of the main body 31. The lid 32 is a member that is swingably provided on the main body 31 and is wound around the vertical pipe S1. The tightening bolt 33 is a bolt member for connecting the lid 32 to the main body, and a nut screwed to the tightening bolt 33 is locked to a locking portion 32A protruding from the end of the lid 32. Tighten.

  The electric operation tightening nut 34 is a nut member that is locked to the locking portion 32A. The outer shape of the electric operation tightening nut 34 is provided in the same size and shape as the electric operation bolt head 21 described above. In the illustrated example, the outer shape of the electric operation bolt head 21 and the electric operation tightening nut 34 is formed in a hexagonal shape with the same dimensions, so that the same socket as the socket bit P1 in which the electric operation bolt head 21 is rotated. The bit P1 is provided so that it can be rotated.

  The pipe cover 40 is a pipe member that covers the long bolt 20 and the wall connecting pipe 10 (see FIG. 1). The pipe cover 40 is provided with a connecting shaft 41 that penetrates the side surfaces of the pipe cover 40 and the long bolt 20, and the pipe cover 40 is connected to the long bolt 20 by the connecting shaft 41 (FIG. 3). reference). Therefore, when the electric bolt head 21 for electric operation of the long bolt 20 is rotated by the electric screwdriver P, the long bolt 20 is rotated together with the pipe cover 40. In the illustrated example, an auxiliary ring 42 is interposed between the pipe cover 40 and the long bolt 20 in order to facilitate the rotation of the pipe cover 40.

  Next, the connecting method of the wall connecting metal using the connecting metal of the present invention will be described. The connecting method of the present invention has four processes, an anchor embedding process 100, a fixing bolt connecting process 200, a length adjusting process 300, and a nut tightening process 400 (see FIG. 7).

  The anchor embedding process 100 is a process of embedding the anchor R in the wall surface Q of the building. In this step, first, a position suitable for fixing is selected in the wall surface Q of the building. Next, the position which can be connected horizontally from the vertical pipe S1 of the temporary scaffold S is marked, and the anchor R is embedded at this position. In places where the anchor R cannot be embedded, it is possible to use an arbitrary member in place of the anchor R.

  The fixing bolt connecting step 200 is a step of connecting the wall connecting bracket by screwing the fixing bolt 12 of the wall connecting bracket to the anchor R already embedded at a predetermined position of the wall surface Q. In this process, it is not necessary to adjust the length to the approximate length according to the distance from the wall surface Q to the vertical pipe S1 in advance, as in the case of a conventional connecting fitting. 12 will be connected. When the strength of the wall surface Q is sufficient, it is also possible to connect the wall connecting bracket of the present invention to each anchor R in advance.

  The length adjusting step 300 is a step of adjusting the length of the wall connecting metal by rotating the electric operation bolt head 21 of the wall connecting metal connected to the wall surface Q by the electric screwdriver P (see FIG. 4). ). By rotating the socket bit P1 of the electric screwdriver P against the bolt head 21 for electric operation, the length of the long bolt 20 is adjusted, and accordingly, the position of the clamp fitting 30 is adjusted to the position of the vertical pipe S1. It is something that can be done. More specifically, since the end of the wall connecting pipe 10 is already fixed to the wall surface Q by the fixing bolt 12, the bolt head 21 for electric operation is supported while supporting the wall connecting pipe 10 with one hand. The operation is to rotate the socket bit P1 against the socket. Only by such an operation, the position of the clamp fitting 30 can be easily and accurately adjusted to the position of the vertical pipe S1.

  The nut tightening step 400 is a step of connecting the clamp fitting 30 to the vertical pipe S1 after adjusting the length (see FIG. 5). In order to connect the clamp fitting 30, the lid 32 of the clamp fitting 30 wound around the vertical pipe S 1 of the temporary scaffold S is connected to the main body 31 of the clamp fitting 30. At this time, an electric operation tightening nut 34 having the same shape as the electric operation bolt head 21 is screwed to the end of a tightening bolt 33 provided swingably on the main body 31. The electric operation tightening nut 34 is rotated by the socket bit P1 of the electric screwdriver P when the electric operation tightening nut 34 is locked to the locking portion 32A of the lid 32. This socket bit P1 uses the same socket bit P1 used for the electric operation bolt head 21 of the long bolt 20.

  The method for using the connecting metal fitting of the present invention is particularly suitable for construction work or repair work for a detached house or the like, but it is also possible to ensure the safety of work in building construction.

P Electric screwdriver P1 Socket bit Q Wall surface R Anchor S Temporary scaffolding S1 Vertical pipe 10 Wall connecting pipe 11 Length adjusting nut 12 Fixing bolt 13 Connecting shaft 20 Long bolt 21 Bolt head for electric operation 21A Flange 30 Clamp fitting 31 Main body 32 Lid Body 32A Locking portion 33 Tightening bolt 34 Electric operation tightening nut 40 Pipe cover 41 Connecting shaft 42 Auxiliary ring 100 Anchor embedding process 200 Fixing bolt connecting process 300 Length adjusting process 400 Nut tightening process

Claims (4)

A length-adjusting nut is fixed inside the pipe, and a wall-connecting pipe having a fixing bolt for fixing a wall surface at one end of the pipe, and a wall-connecting pipe that is rotatably connected to the body of a clamp fitting connected to a temporary scaffold. A long bolt inserted into the inside from the other end of the screw and screwed to the length adjusting nut, and the length from the wall connecting pipe to the clamp fitting is configured to be extendable by rotation of the wall connecting pipe with respect to the long bolt. In the wall fittings,
A long bolt clamp fitting forms an electric operation bolt head to be attached to the electric screwdriver at the end of the flange,
A clamp for electric operation that is swingably provided on the main body of the clamp fitting and has the same shape as the electric operation bolt head at the end of the tightening bolt that connects the lid wound around the vertical pipe to the main body. Wall anchoring bracket for temporary scaffolds, characterized in that the attached nuts are screwed.   A pipe cover is provided to cover the long bolt and the wall-connecting pipe, a connecting shaft is provided to penetrate the pipe cover and the side of the long bolt, the pipe cover is connected to the long bolt by the connecting shaft, and the electric operation The temporary anchoring wall tether according to claim 1, wherein the long bolt is rotated together with the pipe cover by rotating the bolt head. A length-adjusting nut is fixed inside the pipe, and a wall-connecting pipe having a fixing bolt for fixing a wall surface at one end of the pipe, and a wall-connecting pipe that is rotatably connected to the body of a clamp fitting connected to a temporary scaffold. And a long bolt that is inserted into the length adjustment nut and screwed to the length adjusting nut, and the long bolt is configured to be extendable and retractable with respect to the wall connecting pipe by the rotation of the long bolt. The clamp body of the long bolt forms a bolt head for electric operation that can be attached to the electric screwdriver at the end of the clamp, and is provided on the main body of the clamp bracket so as to be swingable. In the connecting method of the temporary anchoring wall tether, which is screwed to the end of the tightening bolt to be connected to the electric operation bolt head having the same shape as the electric operation bolt head,
An anchor embedding process for embedding an anchor R on the wall of the building;
A fixing bolt connecting step of connecting the wall connecting metal to the wall by screwing the fixing bolt of the wall connecting metal to the anchor;
A length adjusting step of adjusting the length of the wall connecting metal by rotating the bolt head for electric operation of the wall connecting metal connected to the wall surface with an electric screwdriver;
After adjusting the length, rotate the clamping nut for electric operation of the clamp bracket with an electric screwdriver, and tighten the electric operation clamping nut so that the lid wound around the vertical pipe is connected to the main body. When,
A connecting method for connecting a wall fitting for a temporary scaffold, characterized by comprising:   The length adjusting step adjusts the length of the wall connecting bracket by rotating the electric operation bolt head with the electric screwdriver while holding the wall connecting pipe connected to the anchor of the wall surface. The method for connecting the wall anchors for temporary scaffolding according to claim 3.

Images