JPH0322422Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to various connecting pipes used in architecture and construction, and particularly to pipe fittings for scaffolding frames.

(Prior Art) As a conventional scaffolding frame pipe fitting, for example, two scaffolding frame pipes to be connected are connected via a connecting pipe whose outer diameter is the same as the inner diameter of the two scaffolding frame pipes.
These connections are made by inserting pins into respective holes. or connect 2
There was one in which a pin was attached to the end of the scaffolding frame pipe, and the pin was inserted into a connecting straight joint that had a notch for insertion.

[Problem that the invention attempts to solve]

With conventional pipe fittings for scaffolding frames, it is necessary to attach pins one by one when joining the scaffolding frame pipes, which is inefficient, and there is a danger that the pins may come off during work and cause workers to fall due to disassembly. It contained. In addition, in cases where a pin is provided at the end of the scaffolding frame pipe, it is necessary to twist the scaffolding frame pipe when inserting it, which is inconvenient to handle. There was a possibility that the frame pipe 6 would come off.

In order to eliminate the inconveniences associated with the present invention, we have developed a scaffolding frame pipe fitting that allows for one-touch installation of construction or construction pipes, especially scaffolding frame pipes and scaffolding frame pipe fittings, and provides a complete connection. It is about providing.

(Means for Solving the Problems) The present invention consists of a pair of rods 1 and 2, each of which has both ends bent at right angles in the same direction to form bent portions 3, 4, 5, and 6.
long holes 18, 19, 20, drilled in both walls of the housing 7,
21 so as to be movable in the inward and outward directions, and the bent portion 3,
4, 5, and 6 facing outward, and the bent portions 3,
4, 5, and 6 protrude outward from both walls of the housing 7, and between the pair of rods 1 and 2, elastic members 10, 11,
For example, by interposing a leaf spring, a coil spring, etc., the rods 1 and 2 are always pressed outward, and by opening windows 8 and 9 in the body of the casing 3 for pushing the rods 1 and 2, the casing 7 Scaffolding frame pipe 1 to be connected to both ends of
This is a fitting for a pipe for a scaffolding frame, characterized in that the bent portions 3, 4, 5, 6 are fitted into the holes 14, 15, 16, 17 of 2, 13.

(Function) The present invention is a scaffolding frame pipe joint fitting configured as described above, and when connecting the scaffolding frame pipes 12 and 13, the rods 1 and 2 in the windows 8 and 9 of the casing 7 are When pushed in, the rods 1 and 2 are moved inward in parallel, and the bent portions 3, 4, 5, and 6 at both ends of the rods 1 and 2 do not interfere with the insertion of the scaffolding frame pipes 12 and 13. Move to position. In this state, scaffolding frame pipe 1
When the bent parts 3, 4, 5, and 6 are inserted into 2 and 13, and the hands are released, the rods 1 and 2 are moved to the inner peripheral surface of the housing 7 by the elastic force of the elastic members 10 and 11. be forced to. The occasionally bent portions 3, 4, 5, 6 fit into the holes 14, 15, 16, 17 of the scaffolding frame pipes 12, 13, and the elastic members 10, 11 fit into the bent portions 3, 4, 5, 6.
This serves to prevent the holes from separating from the holes 14, 15, 16, and 17.

(Example) The present invention will be explained using an example based on the drawings.

The ends of rods 1 and 2 made of a material with sufficient strength such as iron are bent at right angles in the same direction to form bent portions 3, 4, 5, and 6. With the bent parts 3, 4, 5, and 6 at both ends in opposite directions,
The center portion is provided so as to penetrate through the housing 7. The shape of this housing 7 is not particularly limited, but it is advantageous to have a cross-sectional shape similar to the cross-sectional shape of the scaffolding frame pipes 12 and 13 (the shape includes appropriate shapes such as squares and polygons). In this embodiment, both the housing 7 and the scaffolding frame pipes 12 and 13 are cylindrical. In addition, a pair of elongated holes (1
8 and 19, 20 and 21) are provided in a straight line from the circumferential direction toward the center. This long hole 18,
Grooves 22, 23, 24, 25 formed in the rods 1, 2 are engaged with the insides of the rods 19, 20, 21, thereby making it possible to change the distance between the rods 1, 2. In addition, a pair of windows 8 and 9 are opened at symmetrical positions in the center of the body of the casing 7, and the rods 1 and 2 inserted into the casing 7 are opened inwardly through the windows 8 and 9. It is now possible to push it into the Further, between the rods 1 and 2, an elastic member 10 made of a suitable material such as a coil spring, etc.
11 is provided, and serves to press each rod 1, 2 against the inner surface of the housing 7.

Next, to explain how the present invention is used, first, by grasping the rods 1 and 2 in the windows 8 and 9 of the casing 7 and pushing them inward against the elastic members 10 and 11,
The rod 1 has long holes 18 and 20, and the rod 2 has long holes 19,
21 and moves to the position shown by the dotted line in FIG. In this state, the scaffolding frame pipe 12,
13 holes 14, 15, 16, 17 are rods 1, 2
Insert it into the bending parts 3, 4, 5, and 6 of the camera at a position where it can be inserted. The rods 1 and 2 inside the windows 8 and 9 of the rear housing 7
When the grip is released, the rods 1 and 2 become elastic members 10 and 1.
The bent portions 3, 4, 5, 6 of the rods 1, 2 are pressed against the inner surface of the housing 7 by the elastic force of
6 and 17, and the scaffold frame pipe connection is completed.

Note that after the scaffolding frame pipes 12 and 13 are connected, the elastic members 10 and 11 act to press the rods 1 and 2 against the inner surface of the casing 7, and the scaffolding frame pipe 1
2 and 13 never come off.

Further, the separation of the scaffolding frame pipe fittings and the scaffolding frame pipes 12 and 13 is performed by the reverse operation of the above-mentioned joining operation.

(Effects of the invention) The present invention has improved the pipe fittings for scaffolding frames compared to the conventional pipe fittings for scaffolding frames, which had to attach pins one by one when joining the scaffolding frame pipes, resulting in poor working efficiency. Since the rod inside the window formed in the housing is held inward and joined, the joining work can be done quickly and handling is simple. Furthermore, if a conventional scaffolding frame pipe with the same hole position is used, it can be used to connect conventional scaffolding frame pipes, and the structure of the present invention itself is simple and inexpensive to manufacture. It has excellent effects such as being able to

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway front view of the present invention, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is a sectional view taken along line A-A of the same. , Figure 4 is a cross-sectional view of the rod pushed inward, Figure 5 is
The figure is a perspective view showing the state of use, and FIG. 6 is a sectional view showing the state of connection with the scaffolding frame pipe in the state of use. 1, 2 are rods, 3, 4, 5, 6 are bent parts, 7 is a housing, 8, 9 are window parts, 10, 11 are elastic materials, 1
2, 13 are scaffolding frame pipes, 14, 15, 16,
17 is a hole, 18, 19, 20, 21 are long holes, 2
2, 23, 24, and 25 are groove portions.

Claims (1)

[Scope of utility model registration request] A pair of rods with both ends bent at right angles in the same direction to form a bent part are engaged with long holes drilled in both walls of the casing so as to be movable in and out, and the bent part is bent outward. The bent portions are made to project outward from both walls of the casing, and an elastic material is interposed between the pair of rods to constantly press the rods outward. 1. A fitting for a scaffolding frame pipe, characterized in that a push-in window is opened and the bent part is fitted into a hole in a scaffolding frame pipe to be connected to both ends of a casing.