JPH0630339U - Connection device for temporary pipes - Google Patents

Abstract

(57) [Summary] [Structure] A lower receiving connector 2 that is fixed in advance to the side surface of the support pipe 1, and a screw portion 6 provided on the side surface of the supporting pipe 1 above the lower receiving connector 2 are screwed to the upper and lower parts. An upper tightening connection tool 3 that is movably mounted is provided, and the ends of the horizontal connecting members 4 are connected to the pair of upper and lower connection tools 2 and 3. The locking body 5 is connected to the tip of the horizontal tie member 4. Then, valley-shaped locking groove portions 5A are provided at the upper and lower ends of the locking body 5. On the other hand, the lower receiving cup 2 and the upper tightening cup 3 are formed into a disc shape, and the locking projections 2A and 3A that lock in the upper and lower locking groove portions 5A of the horizontal connecting member 4 are relatively arranged along their outer peripheral edges. Install facing. [Effect] Even if a slight deformation occurs, reliable connection is possible and the durability is extremely high. Furthermore, the horizontal tie is
The support pipe can be connected in either direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a support pipe for constructing a scaffold for temporary construction or a support for a formwork, and more particularly to a connection device for a temporary pipe for directly connecting a horizontal tie member to a side surface of the support pipe.

[0002]

[Prior art]

 Conventional temporary scaffolds and formwork supports were constructed by fixing clamp fittings to the side of the support pipe and using horizontal tie members for the clamp fittings. Further, as a connection structure without using the clamp fitting, the applicant has previously proposed a connection device for directly connecting a horizontal tie member to the side surface of the support pipe (registered utility model No. 1890033 and actual development). 62-131549 gazette). In these devices, a fixed cup for connecting the horizontal tether to the side of the support pipe is fixed in advance, and the end of the horizontal tether is directly connected to the fixed cup when constructing the scaffold.

[0003]

[Problems to be solved by the device]

 Construction work using a support device that does not use clamp fittings was able to significantly improve the work efficiency compared to construction work that uses clamp fittings. However, with this support device, there was a problem in the durability of the horizontal tie material. That is, according to the conventional support device, a pair of vertically extending tongue-shaped locking pieces are provided at the tip of the horizontal tie member, and the locking pieces are inserted into the upper and lower cup pieces. It tightens this. At this time, in order to connect the horizontal tie material and the support pipe, the tip of the horizontal tie material was pressed against the side surface of the support pipe. Therefore, the tongue-shaped locking piece must always maintain the shape accuracy of the upper and lower cup pieces that can be inserted into the hook, and even if this locking piece is slightly deformed, When it was not possible to insert it into the saw, there was the inconvenience that the horizontal connecting material itself could not be used. Moreover, since this tongue-shaped locking piece is provided at the end of the horizontal tie member, it is easily damaged during transportation, use, or storage, and is defective due to deformation of the locking piece. Was very frequent.

Therefore, the present invention has been devised to solve the above-mentioned problems, and is a temporary pipe that is improved in durability and capable of reliable connection even if slight deformation occurs. The purpose of the present invention is to provide a connecting device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a lower receiving connector 2 which is fixed in advance to a side surface of a supporting pipe 1 for constructing a support P for a temporary scaffold or a formwork, and a supporting pipe above the lower receiving connector 2. An upper tightening connection tool 3 is provided which is screwed to a threaded part 6 provided on the side surface of the upper part 1 so as to be vertically movable. Then, the ends of the horizontal connecting member 4 are connected to the pair of upper and lower connecting tools 2 and 3.

A column-shaped locking body 5 that is narrower than the horizontal tie member 4 and extends vertically is continuously provided at the tip of the horizontal tie member 4. Then, valley-shaped locking groove portions 5A are provided at the upper and lower ends of the locking body 5.

On the other hand, the lower receiving cup 2 and the upper tightening cup 3 are disc-shaped, and the locking projections 2A and 3A that lock in the upper and lower locking groove portions 5A of the horizontal connecting member 4 are provided on the outer peripheral edges of the respective locking ridges. It is that they are projected opposite each other.

[0008]

[Action]

 That is, according to the present invention, the locking projections 2A, 3A of the lower receiving coupling tool 2 and the upper tightening coupling tool 3 are coupled with the locking body 5 provided at the tip of the horizontal connecting member 4. In this case, the locking body 5 locks the locking groove portion 5A in the protruding portions of the locking projections 2A and 3A facing each other, and the upper tightening connector 3 is sandwiched.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Reference numeral 1 shown in the drawing is a support pipe for constructing a temporary scaffold or a support P for the formwork (see FIG. 1). On the side surface of the support pipe 1, a disc-shaped lower receiving connector 2 is fixed in advance. A disc-shaped upper tightening coupling 3 is provided on the support pipe 1 above the lower receiving coupling 2 so as to be vertically movable. The upper tightening connection tool 3 can adjust the height of the lower receiving connection tool 2 by being screwed to the screw portion 6 provided on the side surface of the support pipe 1. The upper tightening connector 3 shown in the drawing is provided with a rotary protrusion 3B on a side surface which is easily hit by a hammer or the like when the upper tightening connector 3 rotates (see FIG. 3). The threaded portion 6 is provided on the side surface of the fitting tubular body 6A that is fitted onto the support pipe 1 in the form of a ridge, and the fitting tubular body 6A is fixed to an appropriate position of the support pipe 1 ( (See Figure 2). At the end of the horizontal tie member 4, a columnar locking body 5 that is narrower than the horizontal tie member 4 and extends vertically is continuously provided. Then, valley-shaped locking groove portions 5A are provided at the upper and lower ends of the locking body 5.

On the other hand, the locking projections 2A and 3A that lock in the upper and lower locking groove portions 5A of the horizontal tie member 4 face each other along the outer peripheral edges of the lower receiving coupling tool 2 and the upper tightening coupling tool 3, respectively. To project. The locking body 5 in the illustrated example is provided separately from the support pipe 1. When the locking projections 2A and 3A are locked in the locking groove 5A, the tip of the locking body 5 is provided so as not to contact the side surface of the support pipe 1.

In the method of use of the present invention, first, the lower engagement groove portion 5A of the engagement body 5 provided at the tip of the support pipe 1 is engaged with the engagement protrusion 2A of the lower receiving connector 2. Next, while the upper locking groove portion 5A of the locking body 5 is locked to the locking projection 3A of the upper tightening connecting tool 3, the upper tightening connecting tool 3 is tightened by the lower receiving connecting tool 2 and fixed. To do.

[0012]

[Effect of device]

 In this invention, as described above, a columnar locking body, which is narrower than the horizontal connecting material and extends vertically, is connected to the tip of the horizontal connecting material, and the upper and lower end portions of the locking body have a valley shape. On the other hand, the lower receiving cup and the upper tightening cup are disc-shaped, and the locking ridges that lock in the upper and lower locking grooves of the horizontal tie member are provided along the outer peripheral edges of each of them. Since the protrusions are opposed to each other, the locking body provided at the tip of the horizontal connecting member can be connected without abutting on the side surface of the support pipe. As a result, it becomes unnecessary to always maintain the shape accuracy of the locking piece as in the conventional coupling device in which the locking piece is inserted into the upper and lower cup pieces, and even if a slight deformation occurs. , It became possible to connect securely, and it became extremely durable.

Moreover, the locking body can be connected in either direction of the disk-shaped lower receiving connector and upper disc tightening connecting device. Further, since the locking body is formed to be narrower than the horizontal connecting material, many horizontal connecting materials can be connected to the support pipe.

As described above, according to the present invention, even if a slight deformation occurs, the connection can be surely performed, which is extremely durable, and the horizontal tie member can be installed in any direction of the support pipe. It is possible to connect, and various horizontal tie members can be connected to the support pipe, and various practically useful effects are exhibited.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a connected state.

FIG. 2 is a perspective view showing a connected state.

FIG. 3 is a plan view showing a connected state.

FIG. 4 is a perspective view showing a usage state.

[Explanation of symbols]

P support 1 support pipe 2 lower receiving coupling tool 2A locking projection 3 upper tightening coupling tool 3A locking projection 3
B Rotational protrusion 4 Horizontal tie member 5 Locking body 5A Locking groove part 6 Screw part 6A Fitting cylinder

Claims (1)

[Scope of utility model registration request] 1. A lower receiving connector fixed in advance around a side surface of a support pipe for constructing a temporary scaffold or a support for a formwork, and a screw portion provided on the supporting pipe above the lower receiving connector to be screwed up and down. In a temporary scaffolding coupling device in which an upper tightening coupling that is movably mounted is provided, and the ends of the horizontal tethers are connected to the pair of upper and lower couplings, the tip of the horizontal tether is narrower than the horizontal tether. And vertically extending columnar locking bodies, and valley-shaped locking groove portions are provided at the upper and lower ends of this locking body, while the lower receiving coupling and the upper tightening coupling are disc-shaped. A connecting device for a temporary pipe, characterized in that locking projections that are formed and are locked in the upper and lower locking groove portions of the locking body are provided so as to face each other along respective outer peripheral edges.