JPH0453135Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention is for use in curved wiring where telephone lines, power lines, etc. are housed and routed in curved parts of inside or outside corners of floors, walls, etc. The present invention relates to a duct, and particularly relates to an assembly structure of a duct body and a cover body.

(Prior art) When wiring telephone lines, etc. at curved parts such as inside or outside corners of the floor or wall of a building, the wiring duct that covers the telephone lines, etc.
A bent portion wiring duct is used that is bent to match the bending angle of this bent portion. As described in, for example, Japanese Utility Model Application Publication No. 57-40649, a conventional curved wiring duct has both end faces open and two opposing upper and lower sides facing each other that are flat and the other opposing sides facing each other. Opening one of the two bent inner and outer surfaces of a substantially square cylindrical duct body whose two inner and outer surfaces are bent in the axial direction at a predetermined bending angle, and opening the bent inner surface of the duct body. A structure was adopted in which a bridging piece was fitted into the duct body, an iron cover was fitted onto the inner surface of the duct body, and the iron cover was sandwiched between magnets provided on the bridging piece to cover the opening on the inner side of the duct body.

(Problems to be solved by the invention) The duct with the above conventional structure requires a bridge piece to attach the cover body to the duct body, and furthermore, this cover body is attracted by a magnet, so there are many parts. Since the bridge piece is attached, it takes a lot of man-hours to install the cover, and if the magnetic force of the magnet is increased to increase the adsorption force of the cover, there is a risk of electromagnetic interference with telephone lines and computer lines. If the magnetic force is reduced, the cover is likely to shift due to impact, and the cover body cannot be reliably attracted and held.Furthermore, the top and bottom surfaces of the cover body are fitted to the outside of the top and bottom surfaces of the duct body. Therefore, there is a problem that there is a difference in level from the ducts connected to both ends.

Furthermore, since the bridging piece to which the cover body is attached has a hook-shaped portion that engages with the engagement grooves formed on the upper and lower side surfaces of the ducts on both sides, there is a problem in that it takes time and effort to connect the ducts.

The present invention aims to solve these problems and provides a bent wiring duct that has a simple structure, a small number of parts, good assembly, and easy wiring work.

(Means for Solving the Problems) The curved wiring duct of the present invention has both end faces open, two opposing upper and lower sides are flat, and the other two opposing inner and outer sides are axially oriented in a predetermined manner. A plate-shaped plate bent at the predetermined bending angle, which opens one inner surface of the two bent inner and outer surfaces of the duct body, which is approximately square and cylindrical, bent at the bending angle, and closes the open inner surface of the duct body. a cover body is provided, a pair of protruding edges extending substantially in the direction of the bisector of the bending angle are formed on two flat upper and lower side surfaces of the duct body, and the bending portion on the outer surface of the duct body is Vertical anti-swing protrusions are formed on the inner surfaces of both sides of the sandwich, and both sides of the cover body are slidably fitted between the edges of the pair of protrusions, and the center extends in the direction of the bisector of the bending angle. A pair of upper and lower protrusions are formed with a notch in the duct body, and a connecting piece protruding from the end face is protruded from the outer surface of the duct body and both ends of the cover body, respectively, inwardly by the material thickness of the side surface and the cover body. It was established.

(Function) In the curved wiring duct of the present invention, for example, at a corner, the duct body is glued to the corner of the floor, wall, etc., and a telephone line or the like is run along the inner surface of the duct body. , by sliding the cover body in the direction of approximately the bisector of the bending angle of the duct body, and fitting the pair of protrusions of the cover body between the pair of protrusion edges on the inner surface of the flat upper and lower sides of the cover body. At the same time, the open side surface of the duct body is closed by the cover body. At this time,
Even if telephone wires, etc. protrude from the open side of the duct body, when the cover body described above is installed, the cover body pushes the telephone wires, etc. in the direction along the inner surface of the duct body and bends them. is securely stored within the duct body. and,
Since the pair of projecting pieces of the cover body are fitted to the inner surfaces of both upper and lower side surfaces of the cover body, they are fitted to the inner surface of the duct body, so that no level difference occurs. In addition, the duct can be easily connected by simply fitting the duct into the connecting pieces at both ends of the duct body.

(Example) Next, the configuration of an example of the bending portion wiring duct of the present invention will be described based on the drawings.

1 is the duct body, with both end faces 2 and 3 open at 90°
It is shaped like a rectangular tube that is bent. The duct main body 1 has two opposing parallel upper and lower side surfaces 4 and 5 that are flat and approximately L-shaped, and two opposing parallel inner and outer surfaces that are orthogonal to these upper and lower sides. In the axial direction of main body 1
bent at 90°. Furthermore, of the two bent inner and outer surfaces, the one that protrudes when viewed from the outside serves as an inside corner joint side surface 6, and the other one serves as an inner open side surface 7 that is continuous with the end surfaces 2 and 3. It's summery.

Further, on the inner surfaces of both upper and lower side surfaces 4 and 5 of the duct body 1, there are a pair of pairs located on both sides of the bent portion 8 of the duct body 1 and extending in the bisector direction of the bent angle of the bent portion 8. ridge edges 9 and 10 are formed, respectively. Further, on the inner surface of the corner joint side surface 6, a pair of vibration prevention protrusions 11 and 12 are formed on both sides of the bent portion 8 in the vertical direction. Further, on both end edges of the corner joint side surface 6, connecting pieces 13, 14 are provided which are closer to the inner surface side by the material thickness of this side surface 6 and protrude from the end surfaces 2, 3.
are formed respectively.

Reference numeral 21 denotes a cover body, which is formed into a bent plate shape having the same shape as the opening side surface 7 of the duct body 1. Then, on both side edges of the protruding surface of the cover body 21, a pair of protrusions 9 and 10 are fitted perpendicularly to the side surfaces of the duct main body 1 by sliding. Projecting pieces 22 and 23 are respectively formed. Further, cutout portions 25 and 26 for preventing sink marks are formed in the central portions of these projecting pieces 22 and 23, that is, extending in the direction of the bisector of the bending angle of the bending portion 24 of the cover body 21, respectively. Moreover, the double projecting piece 22,
A plurality of press-contact protrusions 28 are formed on the outer surface of each of the protrusions 23 . Furthermore, the cover body 2
Connecting piece portions 29 and 30 are formed protruding from both ends of the cover body 21, respectively, and are closer to the inner surface side by the material thickness of the cover body 21.

Next, the operation of the above embodiment will be explained.

When wiring in a corner such as a floor or wall,
As shown in FIG. 3, the outer surface of the inner corner joining side surface 6 of the duct body 1 is adhered to this inner corner. Further, as shown in FIG. 3, a cover body 31 of a straight wiring duct is connected to both ends of this corner joint side surface 6. As shown in FIG. This cover body 31 has its end edge inserted between the connection piece parts 13 and 14 of the duct main body 1 and a floor surface, etc., and is adhered to this floor surface. , 14 serve as guides, making the connection work easier, and since the cover body 31 is held down by the connection pieces 13 and 14, the connection becomes more reliable.

Further, a telephone line or the like is laid along the inner surface of the duct body 1. The cover body 2 is inserted between the pair of protrusions 9 and 10 on both flat side surfaces 4 and 5 of the duct body 1 via the inner opening side surface 7 of the duct body 1.
The protrusions 22 and 23 of 1 are slidably fitted to each other, and the opening side surface 7 of the duct body 1 is covered by this cover body 21.
occlude. In this state, each of the protrusions 22 and 23 reliably abuts the pair of protrusion edges 9 and 10 due to the elasticity of the notches 25 and 26, and the press-contact protrusions 28 press against the flat upper and lower side surfaces 4 and 5 of the duct body 1. The cover body 21 is securely connected to the duct body 1 by being pressed against the inner surfaces thereof.

The cover body 21 is attached to the duct body 1 by sliding in the direction of the bisector of the bending angle of the cover body 21 and the duct body 1, and is attached to the bent inner opening side surface 7 of the duct body 1. occlude. Therefore, even if a telephone line or the like protrudes outward from the opening side surface 7 of the duct body 1, the cover body 1
1 pushes the telephone line or the like in the direction along the inner surface of the inner corner joint side surface 6 on the outside of the duct body 1 and bends it, so that the telephone line or the like is reliably stored in the duct body 1. Therefore, wiring work becomes easy.

In addition, the cover body 31 of the straight wiring duct includes:
Cover the duct body 32 of the straight wiring duct. In this state, the connecting piece 29 of the cover body 21 of the bent wiring duct is attached to the inner surface of the duct body 32.
30 are engaged to securely connect both ducts.

On the other hand, when wiring to a protruding corner such as a floor or wall, the concave surface of the cover body 21 is glued to the protruding corner, and then the duct body 1 is attached to the cover body 21.
Install. Moreover, in this case, as shown in FIG. 4, the cover body 31 of the straight wiring duct is connected to the cover body 21.

In this case as well, when an elastic telephone wire or the like is tried to lie along the inner surface of the bent cover body 21, it tends to deform almost within the plane defined by the bending angle of the cover body 21. 2
As the duct main body 1 is installed from the direction of the equal dividing line, the telephone line and the like are securely accommodated within the duct main body 1.

(Effects of the invention) According to the invention, the bent inner side surface of the bent rectangular cylindrical duct body is opened, and the opened side surface is covered with a bent plate-like cover body. Since the cover body is attached to the duct body from approximately the direction of the bisector of the bending angle of the duct body, it is possible to avoid wires such as telephone lines protruding from the open inner side of the duct body during wiring work. However, when the cover body is installed, the cover body pushes the telephone wires etc. in the direction along the inner surface of the duct body and bends them, ensuring that the telephone wires etc. are housed inside the duct body, making wiring work easier. . Furthermore, there is no need for parts to attach the cover body to the duct body, and the number of parts is small.
The number of man-hours needed to install the cover is small, and since no magnets are used to attach the cover, there is no risk of electromagnetic interference to telephone lines or computer lines, and the cover can be held securely.
Furthermore, since the protruding pieces of the cover fit inside the upper and lower sides of the duct body, there is no difference in level from the duct connected to both ends, and the protruding pieces of the cover have notches. The cover body is held securely by being brought into pressure contact with the pair of protruding edges by the elasticity of the part, and the notch prevents sinking, and furthermore, the anti-runout protrusion prevents runout and ensures straightness. In addition, the ducts connected to both ends can be easily connected.

[Brief explanation of the drawing]

Fig. 1 is an exploded side view with a part cut away showing an embodiment of the bending part wiring duct of the present invention, Fig. 2 is a front view of the same, and Fig. 3 is a diagram showing the case of wiring in the corner of the same. FIG. 4 is a partially cross-sectional side view, and FIG. 4 is a cross-sectional view in the case of wiring at the protruding corner portion of the same as above. 1... Duct body, 2, 3... End face, 4, 5...
...Upper and lower sides, 6...Outer side, 7...Inner side of opening,
9, 10... Protrusion edge, 11... Shake prevention protrusion, 1
3, 14, 29, 30... Connection piece part, 21... Cover body, 22, 23... Projection piece, 25, 26... Notch part.

Claims (1)

[Claims for Utility Model Registration] A substantially rectangular cylindrical duct body with both end faces open, two opposing upper and lower side surfaces flat, and two opposing inner and outer surfaces bent in the axial direction at a predetermined bending angle. one of the two bent inner and outer surfaces of the duct body is opened, and a plate-shaped cover body bent at the predetermined bending angle closes the open inner surface of the duct body; A pair of protruding edges extending substantially in the direction of the bisector of the bending angle are formed on two upper and lower side surfaces, respectively, and vertical vibration prevention protrusions are formed on both inner surfaces of the outer surface of the duct body sandwiching the bent portion. a pair of upper and lower protrusions formed on the cover body, each side edge of which is slidably fitted between the pair of protrusion edges, and a notch formed in a central portion extending in the direction of the bisector of the bending angle; A duct for wiring at a curved portion, characterized in that a connection piece portion protruding from the end face is provided at both ends of the outer side face of the duct body and the cover body, respectively, inwardly by the material thickness of the side face and the cover body. .