JPS6134817Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a conduit fixing metal fitting, and more particularly to a metal fitting used for fixing a conduit to a hanger rail suspended from a ceiling or the like.

When laying electrical conduits on the ceiling of a building or structure, a method is used in which hanger rails are hung from the ceiling at a certain distance, and the electrical conduits are secured by spanning the hanger rails. Conventionally, as a conduit fixing means in this case, as shown in FIGS. 7 and 8, a side-shaped metal fitting A having a hook part 20 for the rail groove at the lower end and a hole 21 at the upper part, and A metal fitting A' having the same size and shape as the metal fitting A in addition to having a screw hole 22, and a bolt B connecting the pair of metal fittings A and A' at the upper part.
A device consisting of was used.

However, such a device had the following problems.

B When fixing the conduit, both metal fittings A,
After disassembling A' and putting them separately into the hanger rail 10, it has to be reassembled,
Handling and work are troublesome.

(b) Although the metal fittings have the same shape, the tightening direction is only one direction, so failures such as accidentally inserting the bolt from the side of the metal fitting with the screw hole occur frequently, and there is a large time loss due to rework.

C. Tightening is performed in a direction perpendicular to the axis of the conduit, and the bolts protrude significantly to the opposite side, making it difficult to fix adjacent conduits and making it impossible to secure the conduits closely together.

D. Since the conduit tube is simply held from both sides and only the upper part is tightened, if the conduit is tightened too tightly, the lower part of the metal fittings A and A' will open, and the fixing force is likely to be insufficient considering the large operating force required, and it is easy to loosen due to vibration. .

E. Since the upper part of the fitting protrudes greatly in the radial direction of the conduit, it not only looks unsightly when installed on a side wall, but also makes it easy to injure hands and fingers by coming into contact with the edges of the fitting or bolts.

The present invention eliminates the drawbacks of the above-mentioned conduit fixing fittings, allows the conduit to be securely fixed to the hanger rail with almost one touch and with a small operating force, and eliminates unnecessary protrusions in the fixed state.
The purpose of the present invention is to provide a fixing metal fitting of this kind that does not cause injury to hands or fingers.

The present invention will be explained below with reference to the accompanying drawings.

In Figures 1 to 5, reference numeral 1 denotes a main body, and a curved part 2 formed by processing a band-shaped metal whose width is narrower than the groove width of the hanger rail 11 and bending it to a curvature approximating the outer diameter of the conduit, and this curved part 2. The other lower end of the curved part 2 has a flange tip 1 of the hanger rail 10.
1 and 11 are provided in a protruding manner.

Reference numeral 5 denotes a shaft piece connected to the extension part 3 of the main body 1 so as to be freely rotatable and movable in the axial direction. A thin shaft 52 passing through the continuous hole 31 is formed, and a stopper 9 such as an E-ring is attached to this thin shaft 52. A head 53 is provided at the upper end of the shaft portion 51, either integrally or separately therewith.

Reference numeral 6 denotes a tightening blade, which has a center hole 61 and is installed in the shaft portion 51 so as to be able to rise and fall, and has a shape other than a perfect circle on a plane, in other words, one pair of opposite sides is closer to the other pair of sides It has a short shape, and its long sides are longer than at least the minimum inner groove width W of the hanger rail 10. In this embodiment, the short side end faces 62, 62
is long enough to contact the inner walls 12, 12 of the hanger rail 10 (larger than the outer width of the hanger rail), and the end surfaces 62, 62 and the short side are connected to the guide oblique side 6.
3,63, by tying it to prevent it from turning more than 90 degrees.

A spring 7 is interposed on the outer periphery of the shaft between the extending portion 3 and the tightening blade 6, and the spring 7 pushes the tightening blade 6 upward toward the head 53.

The curved portion 2 may have a continuous structure including the locking portions 4, 4, but as shown in FIG. A connected configuration may also be used. In this way, the part beyond the hinge 8 can be opened and closed, so the conduit 14
This makes the fitting operation easier, and the boundary zone with the extension part 3 can be formed into an acute angle, so that the area for wrapping around the electric conduit 14 can be increased.

In other drawings, reference numeral 15 denotes a non-slip formed on the curved inner surface, 16 a spring portion formed at the boundary between the curved portion 2 and the extension portion 3, and 17 a non-slip formed on one head of the shaft.

Since the present invention has the above-described configuration, when fixing the conduit 14 to the hanger rail 10, the short side of the tightening blade 6 should be attached to the extending portion as shown in FIGS. 1 and 2. 3, the main body 1 is inserted into the groove of the hanger rail 10, and the locking portions 4, 4 at the curved lower ends are hooked onto the tips 11, 11 of the hanger rail flanges. Next, the curved portion 2 is fitted into the conduit 14, and the extending portion 3
It rotates while pressing the head 53 of the shaft piece 5 rising from the shaft.

In this way, the compression of the spring 7 causes the shaft piece 5 to
The step part 54 sinks until it comes into contact with the extension part 3, and the tightening blade 6 sinks along the shaft part 51 through the central hole 61 and turns around the shaft part, as shown in FIG. The short side fits into the groove of the hanger rail 10. In the case of the embodiment, the end surfaces 62, 62 of the short sides contact the rail inner walls 12, 12, and further turning is automatically prevented.

Then, when the pressure on the head 53 is released, the tightening blade 6 is pushed up by the elasticity of the spring 7, and its upper surface is strongly pressed against the flange tips 12, 12 of the hanger rail 10. On the other hand, the extension part 3 is pressed toward the bottom of the hanger rail by the spring 7 via the tightening blade 6, and this pulls the curved part 2 downward, so that the electric wire fitted in the curved part 2 The tube 14 is tightly tightened to the upper surface of the hanger rail 10 and firmly fixed. Then, an upward stress acts on the extension part 3, and this stress of the extension part 3 acts on the tightening blade 6 through the spring 7, so that the tightening blade 6 does not loosen and is not affected by vibration. This results in a strong conduit fixation structure.

When using the conduit fixing fitting of the present invention as described above, the locking parts 4, 4 are formed at one end of the curved part 2 for fitting the conduit, and the horizontal extension part 3 is connected to the main body at the other end. 1, a shaft piece 5 whose lower end is connected to the extension part so as to be rotatable and movable up and down, and a shaft piece 5 having a central hole 61, which is inserted through the shaft piece 5 and whose two opposing sides are closer to each other than the other two sides. Since it is composed of a short tightening blade 6 and a spring 7 interposed between the extension part 3 and the tightening blade 6, it can be inserted into the groove of the hanger rail as a whole without having to be disassembled into each component. The work can be completed with a one-touch operation of rotating the shaft piece while pressing it, and then releasing the pressure. Therefore, the workability is extremely good and failures do not occur, so efficiency can be improved. In addition, the outer circumference of the conduit is fitted from above with the curved part 2, and the repulsive force of the spring 7 tightens the tightening blade 6 to the hanger rail 10. At the same time, the curved part 2 is pulled downward to connect the conduit 14 to the hanger rail. Since strong pressure is applied, firm fixation can be achieved with a small operating force, and the fixed state will not loosen even if vibrations are applied. Furthermore, since there is only a curved part 2 on the hanger rail, there are no unnecessary protrusions, so it looks good and there is no need to worry about hurting your hands or fingers.Also, since the bolts do not protrude around the electrical conduit, It becomes possible to easily perform the fixing work of each adjacent electric conduit.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing one embodiment of the conduit fixing fitting according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view showing another embodiment of the present invention. Fig. 4 is a plan view showing the present invention in use, Fig. 5 is a vertical side view thereof, Fig. 6 is a longitudinal front view thereof, Fig. 7 is a perspective view of a conventional conduit fixing fitting, and Fig. 8 FIG. 2 is a partially cutaway side view showing the state of use thereof. 1...Main body, 2...Curved portion, 3...Extending portion,
4, 4...Locking portion, 5...Shaft piece, 6...Tightening blade, 7...Spring, 10...Hanger rail, 14...Electric conduit, 61...Central hole.

Claims (1)

[Scope of utility model registration request] A locking portion 4 is provided at one end of a curved portion 2 for fitting an electric conduit.
a main body 1 having a front end 4 and a horizontal extension 3 connected to the other end, a shaft piece 5 connected at its lower end to the extension so as to be able to rotate freely and move up and down, a clamping blade 6 inserted into the front shaft piece 5 through a central hole 61 and having two opposing sides shorter than the other two sides, and a spring 7 interposed between the extension 3 and the clamping blade 6.