JPH06121431A - Connecting apparatus for distributing duct - Google Patents

Abstract

PURPOSE:To join a distributing duct in a one-touch manner without bolt or nut in a connecting apparatus of the distributing duct for holding a cable. CONSTITUTION:A connecting apparatus comprises a distributing duct A, and a connecting member B having a surrounding space capable of installing a capable. In one end of the connecting member B, an insertion part X1 of the one end side which is inwardly fitted into the duct A and is held is formed, and in the other end of the connecting member B, an insertion part X2 of the other end side which is inwardly fitted into another distributing duct A' joined to the duct A and is held is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for connecting a wiring duct containing a wiring cable.

[0002]

2. Description of the Related Art It is known to house a wiring cable in a wiring duct extruded from a hard vinyl chloride resin and install it on the ceiling or to connect the wiring duct to extend its length. ing.

Conventionally, a means using bolts and nuts has been adopted as means for connecting wiring ducts.

[0004]

However, the work of connecting the wiring ducts by using the bolts and nuts is troublesome, and the troublesomeness is further promoted especially in the work in a narrow space such as the ceiling and the work efficiency is improved. There was a problem that it decreased.

The present invention has been made in view of the above problems. Not only can the wiring ducts be connected without using bolts and nuts, but the connection can be performed in a so-called one-touch type. An object of the present invention is to provide a connecting device for a wiring duct that can be manufactured at low cost by extrusion molding of synthetic resin.

[0006]

According to a first aspect of the present invention, there is provided a wiring duct connecting device comprising: a wiring duct in which a cable is arranged in an internal space; and a connecting member having an enclosed space in which the cable can be arranged. The connecting member is configured such that one end side portion in the longitudinal direction thereof is a one end side insertion portion which is fitted and held in the duct, and the other end side portion is fitted in another wiring duct which is butted against the duct. The other end is inserted and held.

According to a second aspect of the present invention, there is provided a wiring duct connecting device according to the first aspect, wherein the pair of side walls of the wiring duct which face each other are engaged with each other and extend in the longitudinal direction of the duct. Is provided, and an engaged line extending in the longitudinal direction of the duct is provided at the one end side insertion portion of the connection member that is fitted and held in the duct, and the engaged line and the engaging line form a pair. Is engaged with the side wall of the connection member in the opposing direction, and the engaged line extends to the other end side insertion portion of the connection member.

[0008]

According to the first aspect of the present invention, the insertion portion on one end side of the connecting member is internally fitted and held in the wiring duct, and the other end of the connecting member is attached to another wiring duct butted against the wiring duct. By fitting and holding the insertion portion, the two ducts are connected to each other via the connecting member. Then, at the connecting portion, the cable can be arranged by utilizing the surrounding space of the connecting member.

According to the second aspect of the present invention, an engaging strip extending in the other end side insertion portion of the connecting member is provided with an engaging strip extending in the longitudinal direction provided on the side wall of another wiring duct. The two ducts are connected to each other through the connecting member by engaging them and causing both ducts to face each other. Then, at the connecting portion, the opening deformation of the side wall of each duct is prevented by the engagement of the engaged ridge with the engaged ridge.

[0010]

1 is a front view of a wiring duct connecting device according to an embodiment of the present invention, and FIG. 2 is a wiring duct A in which a connecting member B is assembled and the wiring duct A. FIG. 3 is a schematic perspective view for explaining a state in which the wiring duct A ′ is connected to the cross-shaped wiring duct A ″. .

The wiring duct A shown in FIG. 1 is divided into a case 1 and a cover 2, and a connection member B is held in the wiring duct A.

The case 1 is an elongated body having a bottom wall 11 and left and right side walls 12 and 12 which are erected from both side edges of the bottom wall 11. Fitting pieces 14 and 14 are provided on the upper ends of the side walls 12 and 12 via stepped portions 13 and 13 that face inward. The fitting piece portion 14 has a curved or bent shape so that the middle portion in the height direction projects slightly outward. In addition, engaging ridges 3, 3 are provided at the intermediate portions in the height direction of the side walls 12, 12. These engaging strips 3 are provided on the side wall 12
It is formed in a T-shape with a leg portion 31 protruding from and a plate piece portion 32 provided on the leg portion 31. Also, the bottom wall 1
1 is provided with a fitting portion 4, and a partition plate (not shown) is fitted to the fitting portion 4 in a fitting manner.

Such a case 1 is formed by extruding a thermoplastic resin such as a hard vinyl chloride resin. In the case 1 extruded in such a manner, the engaging strip 3 and the fitting piece portion 14 and the fitting piece 14 are fitted. The attachment portion 4 is integrally provided over the entire length.

The cover 2 is provided with fitting portions 23, 23 having an outer piece 21 and an inner piece 22 at both ends thereof.
Then, for example, the one (left side) fitting portion 23 is attached to the case 1
After being fitted into one fitting piece portion 14 of one side, the fitting portion 23 of the other side (right side) is applied to the other fitting piece portion 14 of the case 1 as shown by a virtual line in FIG. It is mounted on the case 1 by pushing 23 as shown by the arrow M and fitting it into the fitting piece portion 14. The cover 2 thus mounted on the case 1 is not easily separated from the case 1 because the fitting portions 23, 23 are fitted to the fitting pieces 14, 14.

Such a cover 2 is also formed by extruding a thermoplastic resin such as a hard vinyl chloride resin. In the extruded cover 2, the fitting portions 23 and 23 are formed over the entire length. It is equipped.

The connecting member B has a bottom wall portion 5 and a pair of left and right side wall portions 6 and 6 standing upright from both side edge portions of the bottom wall portion 5 and facing each other. It has a surrounding space S surrounded by the side wall portions 6 and 6, and one end side portion and the other end side portion thereof in the longitudinal direction are respectively formed as one end side insertion portion X1 and the other end side insertion portion X2. There is.

Further, the bottom wall portion 5 is provided with a fitting strip 7, and the left and right side wall portions 6 and 6 are provided with engaged strips 8 and 8, respectively. The fitting strip 7 has a crown portion 71 that covers the fitting portion 4 in an outer fitting shape.
And a projecting piece portion 72 that is fitted into the recess 41 of the fitting portion 4, and the engaged ridge 8 has a crown portion 81 that covers the plate piece portion 32 of the engaging ridge 3 in an outer fitting manner. The pair of projecting pieces 82, 82 are provided, and at the one end side insertion portion X1, the crown portion 81 covers the plate piece portion 32 in an externally fitting manner, and the pair of projecting piece portions 82, 82 is the plate piece portion 32. And the side wall 12 are fitted into the gap. Further, the left and right side wall portions 6 of the connecting member B are
6 is fitted between the stepped portions 13, 13 of the case 1 and the bottom wall 11.

The connecting member B is also formed by extruding a thermoplastic resin such as a hard vinyl chloride resin.
Therefore, the fitted lines 8, 8 and the fitting line 7 extend over the entire length in the longitudinal direction of the connecting member B including the one end side insertion portion X1 and the other end side insertion portion X2.

In the above construction, the engaged ridges 8 and 8 and the fitting ridge 7 of the connecting member B are aligned with the engaging ridges 3 and 3 and the fitting portion 4 of the case 1 in the duct A, respectively, and one end thereof is formed. When the side insertion portion X1 is inserted into the end portion of the wiring duct A as shown in FIG. 2, the engaging strip 3 and the engaged strip 8 form the pair of side walls 12, 12 of the case 1 as can be seen in FIG. The fitting portion 7 and the fitting portion 4 are fitted together in an engaged state in the facing direction Y, and are fitted together in the up-down direction Z and the facing direction Y. The side wall portions 6 and 6 are fitted between the stepped portions 13 and 13 of the case 1 and the bottom wall 11 in a state of being sandwiched therebetween. Therefore, the one end side insertion portion X1 of the connecting member B is retained in the duct A by being fitted in the duct A with no or little rattling.

In this state, the engaged strips 8, 8 of the connecting member B projecting from the duct A and the fitting strip 7 are engaged strips of the case 1 in another duct A'shown in FIG. 2, respectively. When the other end side insertion portion X1 is inserted into the end portion of the duct A'according to 3, 3 and the fitting portion 4, between the other end side insertion portion X2 and another duct A ', as shown in FIG. In the same form as shown, the engaging strip 3 and the engaged strip 8 are fitted in a state of being engaged with each other in the facing direction Y of the pair of side walls 12, 12 of the case 1, and are fitted with the fitting portion 7. The fitting portion 4 is fitted in a state of being engaged with each other in the vertical direction Z and the facing direction Y, and the left and right side wall portions 6 and 6 of the connecting member B are the case 1.
The stepped portions 13 and 13 and the bottom wall 11 are sandwiched and fitted between the two. Therefore, the other end side insertion portion X2 of the connection member B is retained in the duct A ′ with no or little rattling. Also,
Another duct A ′ is butted with duct A. When the other end side insertion portion X2 of the connection member B is inserted into another duct A ′ and the connection member B may be pushed toward the duct A side, for example, the fitting portion 7 and the fitting portion 4 are It is effective to screw a tapping screw (not shown) or the like into the overlapping portion to fix the duct A and the connecting member B in advance.

When the ducts A and A'are connected, the cable (not shown) is connected to the surrounding space S of the connecting member B and the ducts A and A '.
It is arranged through the internal space of A '.

When the ducts are connected to each other as described above, the connecting member B is connected to the ducts A and A '.
Since there is no room for the connection member B to be conspicuously unsightly because it is covered by the, the one end side insertion portion X1 of the connection member B is fitted into the duct A with no or little rattling. Since the other end side insertion portion X2 is internally fitted into another duct A ′ and is held with no rattling or little rattling, the connecting portion is hung by a hanger. Even if a load is applied to the connecting portion, both ducts A and A'are difficult to bend. Furthermore, the engaging strips 3, 3 and the engaged strips 8, 8
Side walls 12, 1 in each duct A, A'by engagement with
2 is prevented from being opened and deformed.

The duct A in which the one end side insertion portion X1 of the connecting member B is fitted and held is straight or bent or curved, and a duct used as a joint (for example, in FIG. 3). The wiring device may be a cross-shaped wiring duct A ″) shown in FIG. 3. In FIG. 3, a connecting device is constituted by a straight duct A and a connecting member B, and the duct A is connected via the connecting member B in a cross shape. It is shown connected to a wiring duct A ".

In the above embodiment, the side wall portions 6 and 6 of the connecting member B are sandwiched by the bottom wall 11 and the stepped portion 13 of the ducts A and A'and are fitted between them. In addition, the connection member B is fitted into the ducts A and A ′ by the engagement between the engagement strips 3 and 3 and the engaged strips 8 and 8 and the engagement between the fitting portion 4 and the fitting portion 7. Although it has been explained that the duct A, A'is held in a state with no rattling or little rattling, the duct A, A'is small (when the duct A, A'is a rectangular tube, one side thereof is short). Connection), the connection member B is in the above-described state even if the engagement between the engaging strips 3 and 3 and the engaged strips 8 and 8 or the engagement between the fitting portion 4 and the fitting portion 7 is omitted. It has been confirmed that it is held in the ducts A and A '(corresponding to the invention of claim 1). Also, the ducts A and A '
Is a large size (when the ducts A and A ′ have a rectangular tubular shape, one side of which is long), the engagement and fitting of the engaging strips 3 and 3 with the engaged strips 8 and 8 are performed. By engaging the portion 4 and the fitting portion 7 with each other, the connecting member B is securely fitted in the ducts A, A ′ without any rattling or with little rattling. There is duct A,
When A'is not so large, even if the engagement between the fitting portion 4 and the fitting portion 7 is omitted, the side wall portions 6 and 6 form the bottom wall 11 and the stepped portion 13 of the ducts A and A '. It is confirmed that such a holding state can be obtained by being fitted between the two in a state of being sandwiched by and the engagement between the engaging strips 3 and 3 and the engaged strips 8 and 8. (Corresponding to the invention of claim 2). Also, the side walls 12, 1 of each duct A, A '
The effect of preventing the open deformation of 2 is exerted by the engagement between the engaging strips 3 and 3 and the engaged strips 8 and 8.

FIG. 4 shows an example in which the structure of the fitting portion 4 on the duct A side and the structure of the fitting ridge 7 of the connecting member B are different from those of the above-described embodiment. The fitting portion 4 in the figure is T-shaped, and the fitting ridge 7 in the figure has a crown 71 with two projecting pieces 72, 7
2, and these projecting pieces 72, 72 are fitted into the two recesses 41, 41 of the T-shaped fitting portion 4. Since other configurations and operations are similar to those of the above-described embodiment, the same parts as those of FIG. 1 are designated by the same reference numerals and detailed description thereof will be omitted.

[0026]

According to the first aspect of the present invention, the wiring duct in which the one end side insertion portion of the connection member is fitted and held therein and the other end side insertion portion of the connection member are held in the same. Since it is butt-connected to another wiring duct via the connecting member, it is not necessary or necessary to use bolts and nuts for connecting the wiring duct. Further, since the connecting member is covered by both ducts, there is no room for the connecting member to be conspicuous and unsightly. Further, according to the invention of claim 1, when the two ducts are connected to each other at many places, the connecting device is immediately constructed by inserting the one end side insertion portion of the connecting member into one of the two ducts. Therefore, there is an advantage that the construction efficiency of the duct is remarkably improved, and an advantage that the duct and the connecting member can be manufactured at low cost by extrusion molding of synthetic resin.

According to the second aspect of the present invention, even when the connecting portion of the two wiring ducts is hoisted by a hoist or the like and a load is applied to the connecting portion, the relationship between the engaging strip and the engaged strip is high. As a result, it is possible to prevent the adjacent ducts from bending at the connecting portion and the side walls of each duct from opening and deforming.

[Brief description of drawings]

FIG. 1 is a front view of a wiring duct connecting device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a wiring duct in which a connecting member is assembled and another wiring duct connected to the wiring duct.

FIG. 3 is a schematic perspective view for explaining a state in which the wiring duct is connected to the cross-shaped wiring duct (joint).

FIG. 4 is a front view of a wiring duct connecting device according to another embodiment of the present invention.

[Explanation of symbols]

 A, A ', A "Wiring duct B Connecting member S Enclosing space X1 One end side insertion part X2 Other end side insertion part 3 Engaging line 8 Engaged line 12 Side wall Y Opposing direction of a pair of side walls

Claims (2)

[Claims] 1. A wiring duct in which a cable is arranged in an internal space, and a connecting member having a surrounding space in which the cable can be arranged, the connecting member having one end side portion in the longitudinal direction inside the duct. One end side insertion portion that is fitted and held, and the other end side portion is the other end side insertion portion that is internally fitted and held in another wiring duct that is butted against the duct. Wiring duct connection device. 2. An end portion of a connecting member, which is provided in the wiring duct, is provided with an engaging strip extending in a longitudinal direction of the duct on each of a pair of side walls facing each other, and the fitting member is retained by being fitted in the duct. An engaged strip extending in the longitudinal direction of the duct is provided in the insertion portion, and the engaged strip and the engaging strip are engaged with each other in the opposing direction of the pair of side walls,
The connection device for a wiring duct according to claim 1, wherein the engaged line extends to the other end side insertion portion of the connection member.