JPH0424170Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to a pipe cross-connector.
Specifically, it is a synthetic resin pipe cross connector for connecting and holding two pipes in an orthogonal state.

[Conventional technology]

For connectors used to connect and hold two orthogonal pipe members in scaffolding at construction sites, greenhouses, or simple garages, etc.
Many proposals have been made.

As such a connector, a connector with a relatively simple structure for connecting a vertical pipe and a horizontal pipe by crossing them at right angles is disclosed in Japanese Utility Model Application Publication No. 59-45308.

This involves fitting a vertical pipe into the U-shaped inner circumferential surface of a plate-shaped body curved in a U-shape, and inserting the horizontal pipe into the opening from the upper surface of both open ends of the U-shape.
A fixing hole for a horizontal pipe leading to this is formed,
A horizontal pipe is inserted into this fixing hole, and a U-shaped fixing plate with a tapered slope is inserted as a wedge between both pipes inside the U-shape to fix both pipes. be.

[Problem that the invention attempts to solve]

The coupling device of Utility Model Application Publication No. 59-45308 is one in which a wedge is driven between the vertical and horizontal pipes that intersect on the inside of a U-shape, and the wedge is fixed in a tightly fitted state. If the pipe fixing device is driven too hard, there is a risk that the pipe fixing device itself will become deformed and the connection will no longer be possible. In addition, driving in the wedge and pulling out the wedge may cause damage to the pipe each time the pipe is cross-connected or disassembled. There are drawbacks that arise.

[Means for solving problems]

In view of the current situation, this invention was developed as a result of intensive research to create a lightweight and strong cross-linking device made of synthetic resin material.

In other words, in this invention, the pipe cross-connector is
It consists of a synthetic resin coupling member formed of a U-shaped curved plate, and a taper pin that can be fixed by penetrating the surfaces near both U-shaped open ends of the coupling member. The U-shaped inner circumferential surface serves as a fitting and fixing part for one of the pipes, and protrusions for preventing the fitting pipe from coming off are provided on the inner surface of the pipe fitting entrance of the fitting and fixing part along the pipe axis direction, A fitting opening for the other pipe and a fixing part for the other pipe leading to the opening are connected to each other from the upper part of the open end side of the U-shape, and a fitting opening is provided at the pipe fitting opening end of the fixing part. The pipe is characterized in that a protrusion is provided to prevent the combined pipe from coming off, and a through hole is formed in the vicinity of both open ends of the U-shape to allow the taper pin to pass through and be fixed therein.

[Effect]

As shown in the figure, the pipe cross connector 1 of this invention
is composed of a coupling member 2 made of a curved plate-like body made of synthetic resin and formed into a U-shape as a whole, and a taper pin 3. One pipe, the vertical pipe 13, is fitted and fixed to the mating fixing part 5, and fitting openings 6a and 6b are provided in two opposing plate surfaces on the open end side of the U-shape.
The other pipe, the horizontal pipe 14, is fitted and fixed to the fixing parts 7a and 7b communicating with the pipes, and the taper pin 3 is inserted into the through hole 11 and the through hole 12 and fixed.

Therefore, when fitting the vertical pipe 13 into the fitting and fixing part 5 of the coupling member 2, the vertical pipe 13 is fitted by pushing out the protrusions 8a and 8b provided at the fitting opening of the fitting and fixing part 5. At the same time, after fitting, the fitting fixing part 5
Since the protrusions 8a and 8b contact and press along the axial outer wall of the vertical pipe 13, the vertical pipe 13 is securely fixed in the fitting fixing part 5,
and prevent their departure.

Further, when the horizontal pipe 14 is fitted into the fixed parts 7a, 7b, the horizontal pipe 14 is inserted into the fixed parts 7a, 7b.
Since the projections 9a, 10a and 9b, 10b provided at the end of the pipe b are pushed apart and inserted, the fixing part 7a,
7b, and this protrusion 9
a, 10a and 9b, 10b contact and press four locations on the side wall of the horizontal pipe to fix the horizontal pipe 14 and prevent it from coming off.

Thus, these protrusions 8a, 8b, protrusions 9a,
10a, 9b, 10b and the insertion and fitting of the taper pin 3 into the through holes 11 and 12,
The vertical pipe 13 and the horizontal pipe 14 are firmly and reliably connected while maintaining their directionality.

The connecting member 2 is made of a synthetic resin or a composite material of synthetic resins having appropriate flexibility and impact resistance. Examples of such synthetic resin materials include vinyl chloride resin, polyethylene, polypropylene, ABS resin, polyamide, polycarbonate, etc. and glass fiber reinforced plastics (FRP)
etc. are preferably used.

Further, for the taper pin 3, synthetic resin, metal, wood materials such as wood and bamboo, and composite materials thereof are appropriately selected and used.

The protrusions 8a and 8b integrally formed near the fitting and fixing part 5 of the coupling member 2 are connected to the vertical pipe 13.
In addition to providing fitting support, the ribs serve as reinforcing ribs that improve the strength of the connecting member 2.

Further, the taper pin 3 has through holes 11 and 12.
By inserting it into the pipe, the support and fixation of each pipe is made more reliable, and this taper pin 3 commonly supports the two U-shaped open end portions, giving synergistic strength to the open end portions. In particular, the supporting force of the horizontal pipe 14 can be further improved, and the safety of use can be improved.

Unlike known metal fixtures, this joining member 2 made of synthetic resin does not damage the pipes 13, 14 to be cross-joined, and in addition, together with the taper pin 3, it does not damage the pipes 13, 14. This can greatly contribute to the installation of temporary scaffolding, etc. by firmly fixing the scaffolding.

Also, when dismantling the cross-connected pipes 13 and 14, the taper pin 3 is removed and each pipe 13 and 14 is pressed against the protrusions 8a and 8b and the protrusions 9a, 10a, 9b, and 10b of the joining member 2. It can be easily disassembled by expanding and removing it.

〔Example〕

Hereinafter, this invention will be explained in more detail based on the attached drawings.

The drawing shows an example of a pipe coupling device according to the invention, and this pipe cross coupling device 1 is composed of a coupling member 2 and a taper pin 3.

The connecting member 2 is molded from synthetic resin with high strength, and has a U-shape in which the entire plate is curved.The inside of this U-shaped curved part 4 is vertically This is the fitting and fixing part 5 of the vertical pipe 13, and protrusions 8a and 8b are integrally formed in the vertical direction on the inner surface of the entrance part where the vertical pipe 13 fits into this fitting and fixing part 5. It is something.

In addition, in the mask part on the open end side of this U-shape, fitting openings 6a and 6b for the horizontal pipe 14 extending laterally from the top and fixing parts 7a and 7b communicating with these are provided in series, and the fixing part 7a , 7b are provided with protrusions 9a, 1 at the ends of the horizontal pipe fitting inlets for preventing the horizontal pipes fitted into the fixing parts 7a, 7b from coming off.
0a, 9b, and 10b are formed.

Further, on the surface near both open ends of the U-shape, there are through holes 11 through which the taper pin 3 is fixed.
and 12 are drilled, and the taper pin 3
The diameter of the through hole 11 is made large and the diameter of the through hole 12 is made small in accordance with the diameter of the taper.

The pipe cross-coupling device 1 of this invention having such a structure can reliably cross-couple the vertical pipe 13 and the horizontal pipe 14 as described above.

[Effects of the invention] As detailed above, the coupling device of this invention, which is composed of a U-shaped coupling member made of a synthetic resin material and a taper pin, is a coupling device in which one pipe is formed into a U-shape. It is fixed by the inner surface of the curved part of the member and the protrusion, and the other pipe is fixed by the inner periphery of the fixed part provided on the open end side of the coupling member, and each protrusion provided on the inlet side of this fixed part. Furthermore, by commonly supporting both open ends of the U-shape with a taper pin, the fixed support of the pipe is made more reliable, and the synthetic resin joint It improves the strength of use as a tool and can be used safely.

Since the coupling member of this invention is mainly made of synthetic resin, it is significantly lighter than conventional metal couplings, and is not only convenient for transportation and handling, but also The occurrence of injuries can be reduced compared to other equipment.

In addition, this synthetic resin coupling tool can be manufactured at a very low cost, and by using it, pipe coupling and disassembly work becomes extremely easy, and the total weight of the scaffold to be constructed can be reduced. It has many advantages.

[Brief explanation of drawings]

The drawing is a perspective view showing the cross-coupling device according to the invention and its use. 1...Pipe cross coupling device, 2...Connection member,
3... Taper pin, 4... Curved part, 5... Fitting fixing part, 6a, 6b... Fitting opening, 7a, 7b
... Fixed part, 8 ... Projection, 9a, 9b, 10a,
10b...Protrusion, 11, 12...Through hole, 13...
...Vertical pipe, 14...Horizontal pipe.

Claims (1)

[Claims for Utility Model Registration] (1) A connecting member made of synthetic resin formed of a U-shaped curved plate and capable of being fixed by penetrating the surfaces near both U-shaped open ends of the connecting member. The coupling member has a U-shaped inner peripheral surface as a fitting fixing part for one pipe, and the fitting fixing part has a protrusion on the inner surface of the pipe fitting opening to prevent the fitting pipe from coming off. are provided along the tube axis direction, and the fitting opening of the other pipe and the fixing part of the other pipe connected thereto are respectively provided from the upper part of the open end side of the U-shape, and the fixing A protrusion for preventing the fitted pipe from coming off is provided at each end of the pipe fitting inlet, and a through hole is formed in the vicinity of both open ends of the U-shape to allow the taper pin to pass through and be fixed. A pipe cross-connector characterized by: (2) The pipe cross coupling device according to claim 1, wherein the taper pin is made of synthetic resin, metal, and wood.