JP2946461B2 - Raceway connection fitting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raceway or a duct (hereinafter collectively referred to) used in, for example, mounting of lighting equipment and various other objects, or wiring of cables in buildings, factories, and other buildings. Raceway connection).

[0002]

2. Description of the Related Art For example, in a building, factory, or other building, as shown in FIG. 21, a raceway or a duct (hereinafter, collectively referred to as a raceway) is generally hung and supported by hanging bolts 2 or the like. And a plurality of lighting fixtures 3 are mounted along the lower surface of the raceway 1 in the horizontal direction (the raceway 1 has, for example, a shape as shown in FIG. 25 and an opening 1a).
Is formed of a channel material having a U-shaped cross section having bent edges 1d, 1d on both sides of the channel material. ).

[0003] A raceway 1 having a similar structure is installed vertically along a vertical wall surface of a building, for example.
Horizontal Raceway 1 and Vertical Raceway 1
Are connected to each other by connecting fittings 4, and an electric cable (not shown) for connecting to the lighting equipment 3 and the like is wired along the horizontal and vertical raceways 1, 1.

[0004] Two raceways 1, 1 orthogonal to each other.
The conventional connection fitting 4 for connecting the two is connected as shown in FIG.
The metal plate 11 is bent on both sides in a U-shape, and the fixing plate 14 is bent on both sides of the metal plate 11 at right angles as shown in FIG. Bending, L-shaped reinforcing plate 1 on both sides as shown in FIG.
5, 15 were fixed by appropriate means such as welding.

Therefore, when the conventional connection fitting 4 shown in FIG. 24 is used, as shown in FIG.
4a, both side plates 12a, 12a are inserted into one end of the horizontal raceway 1 with the opening 1a facing downward so that the fixed plate 14a overlaps the inside of the bottom plate 1b of the raceway 1, and the fixed plate 14a A push screw 18a screwed into the screw hole 17a from below is further screwed in so as to protrude above the fixing plate 14a, and the bottom plate 1b of the raceway 1 is pressed by the tip end of the push screw 18a, whereby the raceway Bending edges 1d, 1d at the tips of both side plates 1c, 1c
The front ends of the side plates 12a, 12a of the connection fitting 4 are pressed against the inside of the base of the connection fitting 4 to be strongly engaged. Therefore, one end of the raceway 1 is fixed to the connection fitting 4.

Similarly, the vertical fixing plate 14 of the connection fitting 4
b, Insert both side plates 12b, 12b into the lower end of the vertical raceway 1 in which the opening 1a is opposite to the horizontal fixing plate 14a, and screw the set screw 18b into the screw hole 17b of the fixing plate 14b. In the same way.

For this reason, the conventional connection fitting 4 shown in FIG.
Is used, the horizontal raceway 1 has the opening 1a facing downward, and the vertical raceway 1 has the opening 1a.
Turns outward. That is, as shown in FIG. 25, the directions of the openings 1a, 1a of the raceways 1, 1 were continuous in the outward direction.

The reason why the directions of the openings 1a, 1a must be continuous in the connection of the two raceways 1, 1, which are perpendicular to each other, as shown in FIG. This is because the plates 14a and 14b are continuous at right angles.

[0009]

However, in the conventional connection fitting 4, the two raceways 1, 1 can be connected only in a state in which the directions of the openings 1a, 1a are continuous. There was an inconvenience.

That is, by using the conventional connection fitting 4, FIG.
When the opening 1a of the raceway 1 in the horizontal direction is turned downward as shown in FIG. 26, the opening 1a of the raceway 1 connected upward in the vertical direction is turned outward. When the raceway 1 is supported along the wall A of the building, the opening 1a is on the wall A side.

Also, the conventional connection fitting 4 also shown in FIG. 24 is used upside down from the case of FIG. 26, and the opening 1a of the horizontal raceway 1 is turned upward as shown in FIG. In this case, since the opening 1a of the raceway 1 connected vertically downward is also directed outward, when the vertical raceway 1 is supported along the wall A of the building, the opening 1a is similarly located on the wall A side. become.

The opening 1a of the raceway 1 has a lid 16
In many cases, the lid 16 needs to be removed when checking the wiring cable in the raceway 1. Therefore, when the vertical raceway 1 is to be supported on the wall A, it is attached in close contact with the wall A. Figure 2
6. As shown in FIG. 27, since the lid 16 must be supported on the wall A with a gap B enough to allow attachment and detachment, the mounting on the wall A becomes extremely complicated. The condition was also unstable.

It is an object of the present invention to solve these problems and to provide a raceway connection fitting in which two raceways can be connected with openings facing in opposite directions.

[0014]

According to a first aspect of the present invention, there is provided a raceway connection fitting according to the first aspect.
A first fixing plate having screw holes, and first and second parallel plates provided inwardly perpendicular to the first fixing plate inward on both sides in the width direction of the first fixing plate. And a first insert composed of the first and second side plates, and a plurality of parallel first and second side plates which are integrally connected in a direction perpendicular to one end in the longitudinal direction of the first and second side plates and in a direction away from the first fixed plate. Third,
A second screw hole provided between a fourth side plate and an end of the third and fourth side plates on the side of the first insertion body in a width direction and perpendicular to the third and fourth side plates. And a second insert comprising a second fixing plate having a channel member having a U-shaped cross section having bent edges on both sides of the opening. The first insert is inserted so that the bottom plate of the first raceway and the first fixed plate overlap on the inside, and both side plates of the first raceway overlap the first and second side plates. And inserting a first set screw into the first screw hole from the inside of the first fixing plate,
By pressing the bottom plate of the first raceway in the direction away from the first fixing plate with the tip of the set screw, the first and second inner surfaces of the bases of the both bent edges of the first raceway are pressed. 2 by pressing the widthwise end of the side plate.
The end of the first raceway is fixed to the insert of the second raceway, and the second raceway is formed inside the end of the second raceway made of a channel material having a U-shaped cross section having bent edges on both sides of the opening. The second insert is inserted so that the bottom plate of the raceway and the second fixed plate overlap and both side plates of the second raceway and the third and fourth side plates overlap. A second set screw is screwed into the second screw hole from the inside of the second fixed plate, and the bottom plate of the second raceway is fixed to the second fixed plate at the tip of the second set screw. By pressing the distal ends in the width direction of the third and fourth side plates against the inner surfaces of the bases of the both bent edges of the second raceway by pressing in a direction away from the second insert. The two raceways at right angles and with different openings by fixing the ends of the raceways It is characterized in that as coupling.

[0015] With the above configuration, according to the raceway connection fitting of the present invention, the raceway provided along the wall surface can be installed with the opening opposite to the wall surface.
Even when a lid is attached to the opening of the raceway, the raceway can be installed without providing a gap between the raceway and the wall surface.

According to a second aspect of the present invention, the first and second fixing plates are provided at the end of the second fixing plate on the first fixing plate side.
Since the protective tongue pieces are provided inside the side plates of the first and second side plates at the leading ends of the first and second side plates by bending and bending, the wires are routed along two raceways connected at right angles. Since the cable contacts the protective tongue, it can be prevented from being damaged.

Further, according to claim 3 of the present invention, the first,
A notch into which the end of the second raceway to be attached to the second insert is inserted is provided at the end of the base of the second side plate on the side of the second fixed plate. By attaching a protector to the edge of the bottom plate at the end of the raceway, it is possible to prevent a cable routed in the raceway from being damaged at the edge.

Further, according to claim 4 of the present invention, the third,
At the base of the fourth side plate, the first insert is first inserted until both lip edges of the first raceway reach the ends of the third and fourth side plates opposite the second fixed plate. Since the inwardly protruding guide bending portion that can be inserted into the end of the raceway is provided, the bent edge portion of the first raceway can be inserted along the guide bending portion. The cable to be wired can be prevented from being damaged at the end face of the lip edge.

According to a fifth aspect of the present invention, there is provided a mounting plate extending in a longitudinal direction of the first fixing plate from an end of the first fixing plate on the side of the second insertion body. In this mounting plate, the raceway connection fitting can be fixed to a wall surface or the like.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. As shown in FIG. 1, the raceway connection fitting 20 is a hollow columnar member formed into an L shape by bending a metal plate, and has a rectangular flat plate-like shape having a first screw hole 31a. 1 fixed plate 31 and first fixed plate 3
The first fixing plate 31 is provided inward on both sides in the width direction of the first fixing plate 31.
A first insertion body 30 having a U-shape formed of first and second side plates 32 and 33 each having a rectangular flat plate shape and provided in parallel to each other and perpendicular to the main body.

A second insert 40 is integrally provided in a direction perpendicular to one end of the first insert 30. That is, the second insert 40 is the first insert 30
The first and second side plates 32 and 33 are formed of third and third rectangular flat plates parallel to each other, which are vertically connected to each other in the direction perpendicular to the longitudinal direction and away from the first fixed plate 31. 4 and the third and fourth side plates 4.
A second rectangular fixed plate 43 provided perpendicular to the third and fourth side plates 41 and 42 between the end portions of the first and second inserts 30 in the width direction of the first and second members 42; It has.
The second fixed plate 43 is vertically bent, for example, from one end of the fourth side plate 42 in the width direction. Second fixing plate 43
Has a second screw hole 43a.

The distance between the outer surfaces of the first and second side plates 32 and 33 of the first insert 30 is the bent edge 1d bent to both sides of the opening 1a as shown in FIG. Raceway 1 made of channel material having a U-shaped cross section having 1d
Alternatively, the distance is set slightly smaller than the distance between the inner surfaces of both side plates 1c and 1c of the duct (hereinafter, collectively referred to as a raceway), and the outer surface of the first fixed plate 31 and the first and second side plates 32, The distance between the front ends of the width direction 33 is set smaller than the distance between the inner surface of the base of the bent edge 1d of the raceway 1 and the inner surface of the bottom plate 1b.

For this reason, as shown in FIG. 5, the first insert 30 of the raceway connection fitting 20 is attached to the inside of the end of the raceway 1 by the first fixing plate 31 inside the bottom plate 1 b of the raceway 1. And the first and second side plates 32, 33
Overlap the inside of both side plates 1c, 1c of the raceway 1, respectively, and the leading ends in the width direction of the first and second side plates 32, 33 are located inside the bases of the bent edges 1d, 1d of the raceway 1. Thus, it can be inserted in the axial direction.

A first screw hole 31a of the first fixing plate 31 of the first insert 30 is provided with a first set screw 5 inserted into the round hole 50a of the plastic circular base 50 from the inside.
1 is screwed in such a manner that its tip 51a does not protrude outside the first fixing plate 31.

Therefore, the bent edge portions 1 are provided on both sides of the opening 1a.
d, 1d, a bottom plate 1 of the raceway 1 is provided inside an end of the raceway 1 made of a channel material having a U-shaped cross section.
b so that the first fixed plate 31 and the first fixed plate 31 overlap each other, and both side plates 1c and 1c of the raceway 1 and the first and second side plates 32,
The first insert 30 is inserted so that the first insert screw 33 overlaps the first insert screw 30, and the first push screw 51 is further screwed in from the inside of the first fixing plate 31 with a screwdriver.
When the bottom plate 1b of the raceway 1 is pressed away from the first fixed plate 31 at 1a, the width of the first and second side plates 32, 33 in the width direction of the bases of the both bent edges of the raceway 1 is increased. Since the tip is pressed, the end of the raceway 1 is fixed to the first insert 30.

In the same manner, the distance between the outer surfaces of the third and fourth side plates 41 and 42 of the second insertion body 40 is the same as shown in FIG. 1
c is set smaller than the distance between the inner surfaces, and the distance between the outer surface of the second fixed plate 43 and the widthwise front ends of the third and fourth side plates 41, 42 is the bent edge 1d of the raceway 1. It is set smaller than the distance between the inner surface of the base and the inner surface of the bottom plate 1b.

For this reason, the second insert 40 of the raceway connection fitting 20 is placed inside the end of the raceway 1, the second fixed plate 43 is placed inside the bottom plate 1 b of the raceway 1, and The third and fourth side plates 41 and 42 overlap the inside of both side plates 1c and 1c of the raceway 1, respectively.
The widthwise ends of the fourth side plates 41 and 42 are the raceway 1
In the state located inside the base of the bent edges 1d, 1d,
It can be inserted axially.

In the second screw hole 43a of the second fixing plate 43 of the first insert 30, a second push screw 5 inserted from the inside into the round hole 50a of the plastic circular base 50 from the inside.
2 is screwed in such a manner that its tip 52a does not protrude outside the second fixing plate 43.

Therefore, inside the end of the raceway 1,
The bottom plate 1b of the raceway 1 and the second fixed plate 43 overlap each other, and both side plates 1c, 1c of the raceway 1
And the third and fourth side plates 41 and 42 are inserted so that the second insertion body 40 is inserted, and the second set screw 52 is further screwed in from the inside of the second fixed plate 43 with a screwdriver to form a second insertion plate. 1
When the bottom plate 1b of the raceway 1 is pressed in a direction away from the second fixed plate 43 by the tip 52a of the push screw 52,
The third and fourth inner surfaces of the base of the both bent edges of the raceway 1
Of the side plates 41, 42 in the width direction are pressed,
The end of the raceway 1 is fixed to the second insert 40.

In this way, as shown in FIG. 3, the two raceways 1,
1 are perpendicular to each other and the openings 1a, 1a are connected in opposite directions.

Therefore, as shown in FIGS. 2 and 3, when the first insert 30 is turned upward, the opening 1a of the vertical raceway 1 is turned to the opposite direction to the wall, and the horizontal raceway 1 is turned vertically. At the lower end of the raceway 1 in the direction, the connection can be made with the opening 1a facing downward.

Conversely, the first insert 30 is turned downward (180 degrees from the state shown in FIG. 3 around the central axis of the second insert 40).
Rotation), the opening 1a of the vertical raceway 1 is opposite to the wall A, and the horizontal raceway 1 is connected at the upper end of the vertical raceway 1 with the opening 1a facing upward. can do.

In FIGS. 2 to 5, the vertical raceway 1 is inserted until the lower end of the raceway 1 contacts the upper ends of the third and fourth side plates 41 and 42, and the horizontal raceway 1 is inserted into the vertical raceway 1. Although the connection is made in a state where the left ends of the ways 1 are in contact with each other, the relationship is reversed as shown in FIG. 6 so that the left ends of the raceways 1 in the horizontal direction are the first and second side plates 3.
2, 33, and may be connected to the horizontal raceway with the lower end of the vertical raceway 1 abutting.

As described above, according to the raceway connection fitting 20 of the present invention, the vertical raceway 1 and the horizontal raceway 1 can be connected at right angles and with openings facing in different directions, as shown in FIG. Horizontal Raceway 1
If the opening 1a faces downward, the raceway 1 provided upward along the wall surface can be installed with the opening 1a facing away from the wall surface A. Therefore, even when the lid 16 is attached to the opening 1a of the raceway 1, the raceway 1 can be installed without providing a gap between the raceway 1 and the wall A as in the case of FIG.

If the opening 1a of the horizontal raceway 1 is directed upward as shown in FIG. 29, the raceway 1 provided upward along the wall surface is provided at the opening. The portion 1a can be installed in a direction opposite to the wall surface A. Therefore, the opening 1 of the raceway 1
27, the raceway 1 can be installed without providing a gap between the raceway 1 and the wall A as shown in FIG.

When the horizontal raceway 1 has its opening 1a facing upward as shown in FIG. 29, the raceway 1 provided downward along the wall has its opening 1a opposite to the wall A. Can be installed. Therefore, even when the lid 16 is attached to the opening 1a of the raceway 1, the raceway 1 can be installed without providing a gap between the raceway 1 and the wall A as in the case of FIG.

The raceway connection fitting 20 shown in FIG. 1 is formed by bending a metal plate. That is, the metal plate 60 is stamped into the shape shown in FIG. This metal plate 60
Left and right symmetrical L-shaped portions 64 and 65 are provided outside two longitudinally parallel bending lines 62 and 63 of the first rectangular portion 61.
And a lateral bending line 6 on the upper side of one L-shaped portion 65
6 has a second rectangular portion 67 outside, and the first and second rectangular portions 61 and 67 have first and second screw holes 31 respectively.
a and 43a are processed.

By bending the rectangular portion 67 perpendicularly to the front side of the paper at the folding line 66 and bending the L-shaped portions 64 and 65 perpendicularly to the front side of the paper at the folding lines 62 and 63, as shown in FIG. The raceway connection fitting 20 shown can be easily created.

FIG. 8 shows a second embodiment of the present invention. In the raceway connection fitting 20 of this embodiment, the end of the second fixing plate 43 on the side of the first insertion body 30 for protecting the cable which is rounded and bent at right angles as shown in FIG. Are provided continuously. 1st, 2nd
Cables (not shown) passed through the inserts 30 and 40
When the cable is pulled, the rounded bent portion 71 of the protective edge piece 70 comes into contact with the cable, so that the cable is not damaged.

The raceway connection fitting 20 shown in FIG.
In a metal plate 60 similar to the one shown in FIG. 10, as shown in FIG.
Is provided so as to protrude from the left side of the second rectangular portion 67 into the rectangular recess 65a, so that the protective edge 70 is rounded at the folding line 70a. In the direction perpendicular to the direction, the rectangular portion 67 is bent perpendicularly to the near side of the drawing at the bending line 66, and the L-shaped portions 64, 65 are bent perpendicularly to the near side of the drawing at the bending lines 62, 63. It can be easily created.

The protective edge piece 70 is provided on the first and second side plates 3.
2 and 33, the protective edge piece 70 is located inside the bent edges 1d and 1d of the vertical raceway 1 as shown in FIG. The cable routed along 1 does not come into contact with the bent edges 1d, 1d of the vertical raceway 1 and is therefore damaged by the bent edges 1d, 1d of the vertical raceway 1. No more.

FIG. 12 shows a third embodiment of the present invention. In this embodiment, notches 80 and 81 are provided at the bases of the first and second side plates 32 and 33, so that the horizontal raceway 1 can be connected to the widthwise ends of the first and second side plates 32 and 33. It can be inserted even more inside.

For this reason, as shown in FIG. 14, a U-shaped protector 82 made of plastic or the like is fitted to the end of the bottom plate 1b of the horizontal raceway 1 as shown in FIG. If the second insert 40 is inserted until the end of the horizontal raceway 1 reaches the notches 80, 81, the cable is protected by the protector 82 and is not damaged. Therefore, the bottom plate 1 at the end of the raceway 1
The possibility that the cable is damaged at the edge portion b is eliminated.

FIG. 15 shows a fourth embodiment of the present invention. In this embodiment, the third and fourth side plates 41 and 42 are provided with the vertical raceway 1 at the boundary between the first insert 30 in the vertical direction and the second insert 40 in the horizontal direction. Guide curving portions 90 and 91 are provided in the shape of a U-shape so that the bent edges 1d and 1d bent at an acute angle are guided and inserted to the lower end.

For this reason, as shown in FIG. 16, the vertical raceway 1 is inserted with the bent edges 1d and 1d guided along the depressions 90a and 91a formed by the guide bending portions 90 and 91 to the lower end. Raceway 1 in the horizontal direction
The connection is made in contact with the bases of the lip edges 1d, 1d of the vertical raceway 1. For this reason, the cables routed along the raceways 1 and 1
No damage is caused on the end faces of d and 1d.

FIG. 17 shows a fifth embodiment of the present invention. In this embodiment, as shown in FIG. 18, a mounting piece 101 having a mounting hole 100 and an upper portion having a U-shape is formed, and as shown in FIG. Are fixed to the lower ends of the side plates 32 and 33 by appropriate means such as welding.

Therefore, the mounting hole 100 of the mounting piece 101
In the above, the raceway connection fitting 20 can be fixed to the wall surface by fixing it to the wall surface with screws (not shown).

It should be noted that as shown in FIG.
1 and fixing by welding, as shown in FIG. 19, a bending line 62 of a metal plate 60 to be bent,
A rectangular portion 103 having both ends extending from the extension line 63 is protruded, and the rectangular portion 103 is integrally extended from the first fixing plate 31 as shown in FIG. The installed raceway connection fittings can also be created.

In the above description, the bent edge portion 1d,
Although the case where the raceway 1d is connected to the side plates 1c and 1c at an acute angle and bent inward with respect to the side plates 1c and 1c is illustrated as an example, both sides of the channel material opening 1a having a U-shaped cross section are shown in FIG. As shown in FIG.
May be a raceway 1 which is bent at right angles to the side plates 1c, 1c, or as shown in FIG. 31, a raceway 1 at which the tips of the bent edges 1d, 1d are further bent at right angles. May be.

Even in the case of FIGS. 30 and 31, the end of the side plate of the raceway connection fitting 20 is pressed against the inner surfaces of the bases of the bent edges 1d and 1d by tightening a set screw, whereby the raceway connection fitting 20 is attached to the raceway connection fitting 20. Is fixed.

[0051]

According to the first aspect of the present invention, a first screw hole 31a is provided.
A first fixed plate 31 provided with the first fixed plate 31 and the first fixed plate 31 inwardly on both sides in the width direction of the first fixed plate 31.
A first insert 30 composed of first and second side plates 32 and 33 provided in parallel to each other and perpendicular to the other end of the first and second side plates 32 and 33 in a longitudinal direction. And third and fourth side plates 40 parallel to each other integrally and continuously provided in a direction away from the first fixed plate 31.
41, the third and fourth side plates 4 between the ends of the third and fourth side plates 40 and 41 on the side of the first insert 30 in the width direction.
A second screw hole 43 provided perpendicular to
a second insert 4 comprising a second fixing plate 43 with a
0 and a bottom plate of the first raceway inside the end of the first raceway consisting of a channel material having a U-shaped cross section having bent edges on both sides of the opening and the first fixing means. The first insert 30 is inserted so that the plate 31 overlaps and the side plates of the first raceway overlap the first and second side plates 32 and 33, and the first fixing plate is inserted. A first set screw is screwed into the first screw hole 31a from the inside of the base 31 and the bottom plate of the first raceway is separated from the first fixed plate 31 at the tip of the first set screw. By pressing the first and second side plates 32 and 33 against the inner surfaces of the bases of the both bent edges of the first raceway by pressing in the direction, the first insert body 30 Sectional U-shape fixing the end of the first raceway and having bent edges on both sides of the opening The bottom plate of the second raceway and the second fixed plate 43 overlap the inside of the end of the second raceway made of the channel material of the second raceway, and both side plates of the second raceway and the third, third The second insertion body 40 is inserted so that the side plates 41 and 42 of the fourth overlap with each other, and a second push screw is screwed into the second screw hole 43a from the inside of the second fixing plate 43. By pressing the bottom plate of the second raceway in the direction away from the second fixing plate 43 with the tip of the second set screw, the inner surface of the base at the both bent edges of the second raceway is pressed. The third and fourth side plates 4
The two raceways are connected at right angles and in different directions by fixing the ends of the second raceway to the second insertion body 40 by pressing the widthwise ends of the first and second 42. It is characterized by doing so.

[0052] With this configuration, according to the raceway connection fitting of the present invention, two raceways can be connected at right angles to each other with the openings facing each other. The part can be installed in the opposite direction to the wall. For this reason, even when the lid is attached to the opening of the raceway, the raceway can be installed without providing a gap between the raceway and the wall surface, so that the raceway can be easily and reliably supported on the wall surface. can do.

According to a second aspect of the present invention, the first and second fixed plates are provided at the end of the second fixed plate on the first fixed plate side.
Since the protective tongues 70 are provided inside the side plates 32 and 33 at the distal ends of the first and second side plates, the protection tongues 70 are provided by bending and bending, so that the two raceways are connected at right angles. Since the cable routed along the protective tongue 70 contacts the cable, it can be prevented from being damaged.

Further, according to claim 3 of the present invention, the first,
Notches 80, 81 into which the ends of the second raceway to be mounted on the second insert 40 are inserted into the ends of the bases of the second side plates 32, 33 on the side of the second fixing plate 43. By attaching the protector to the edge of the bottom plate at the end of the second raceway, it is possible to prevent the cable routed in the raceway from being damaged at the edge.

Further, in claim 4 of the present invention, the third,
At the base of the fourth side plates 41, 42, the bent edges of the first raceway reach the ends of the third and fourth side plates 41, 42 opposite to the second fixed plate 43. Since the inwardly protruding guide bending portions 90 and 91 are provided to enable the first insert 30 to be inserted into the first raceway end, the first bending portions 90 and 91 are provided along the guide bending portions 90 and 91. Since the lip edge of the raceway can be inserted, it is possible to prevent the cable routed in the raceway from being damaged at the end face of the lip edge.

According to a fifth aspect of the present invention, the mounting plate 101 extending from the end of the first fixing plate 31 on the side of the second insertion body 40 in the longitudinal direction of the first fixing plate is provided. With this arrangement, the raceway connection fitting 20 can be fixed to a wall surface or the like of the mounting plate 101.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a raceway connection fitting according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a use state of the raceway connection fitting of the embodiment.

FIG. 3 is a longitudinal sectional view showing the same use state.

FIG. 4 is a sectional view taken along line AA in FIG. 3;

FIG. 5 is a sectional view taken along line BB in FIG. 3;

FIG. 6 is a longitudinal sectional view showing another example of a use state of the raceway connection fitting of FIG. 1;

FIG. 7 is a plan view showing the metal plate before bending the raceway connection fitting of FIG. 1;

FIG. 8 is a perspective view showing a raceway connection fitting according to a second embodiment of the present invention.

FIG. 9 is a longitudinal sectional view showing the raceway connection fitting of the embodiment.

FIG. 10 is a plan view showing a metal plate before bending the raceway connection fitting of FIG. 8;

FIG. 11 is a perspective view showing a use state of the raceway connection fitting of the embodiment.

FIG. 12 is a perspective view showing a raceway connection fitting according to a third embodiment of the present invention.

FIG. 13 is a longitudinal sectional view showing a use state of the embodiment.

FIG. 14 is a perspective view showing a state where a protector is attached to a raceway.

FIG. 15 is a perspective view showing a raceway connection fitting according to a fourth embodiment of the present invention.

FIG. 16 is a horizontal sectional view showing a use state of the raceway connection fitting of the embodiment.

FIG. 17 is a perspective view showing a raceway connection fitting according to a fifth embodiment of the present invention.

FIG. 18 is a perspective view showing a mounting piece.

FIG. 19 is a plan view showing a metal plate before bending processing of the raceway connection fitting of FIG. 20;

FIG. 20 is a perspective view showing a modification of the embodiment of FIG. 17;

FIG. 21 is a perspective view showing an installed state of a conventional raceway.

FIG. 22 is a perspective view showing a process of making a conventional raceway connection fitting.

FIG. 23 is a perspective view showing a process of making a conventional raceway connection fitting.

FIG. 24 is a perspective view showing a conventional raceway connection fitting.

FIG. 25 is a perspective view showing a use state of a conventional raceway connection fitting.

FIG. 26 is an explanatory diagram of a connection state of two conventional raceways.

FIG. 27 is an explanatory diagram of a connection state of two conventional raceways.

FIG. 28 is an explanatory diagram of a connection state of two raceways according to the present invention.

FIG. 29 is an explanatory diagram of a connection state of two raceways according to the present invention.

FIG. 30 is a sectional view showing another example of the raceway.

FIG. 31 is a sectional view showing another example of the raceway.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 raceway 1a opening 20 raceway connection fitting 30 first insert 31 first fixing plate 31a first screw hole 32 first side plate 33 second side plate 40 second insert 41 third side plate 42 fourth side plate 43 second fixing plate 43a second screw hole 50 pedestal 51 first push screw 52 second push screw 60 metal plate 70 protective edge piece 82 protector 90, 91 guide bending portion 100 mounting hole 101 Mounting piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-8813 (JP, A) JP-A-9-303850 (JP, A) Fully open 1983-51616 (JP, U) Really open 1988 17513 (JP, U) JP-A 63-17514 (JP, U) JP-A 3-39316 (JP, U) JP-A 6-9323 (JP, U) JP-A 5-55715 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) H02G 3/00 F24F 13/00

Claims (5)

(57) [Claims] A first fixing plate having a first screw hole, and a pair of first fixing plates provided on both sides in the width direction of the first fixing plate inwardly and perpendicularly to the first fixing plate. A first insert comprising parallel first and second side plates; and a unitary body extending perpendicularly from one longitudinal end of the first and second side plates and away from the first fixed plate. Third and fourth side plates which are provided in parallel with each other, and
A second fixing plate having a second screw hole, which is provided vertically between the third and fourth side plates between end portions of the fourth side plate on the side of the first insert in the width direction. And a second insert having a U-shaped cross-section having bent edges on both sides of the opening.
The first insert is inserted so that the bottom plate of the raceway and the first fixed plate overlap and both side plates of the first raceway and the first and second side plates overlap. A first set screw is screwed into the first screw hole from the inside of the first fixing plate, and the first set screw is screwed into the first set screw at the tip of the first set screw.
By pressing the bottom plate of the raceway in a direction away from the first fixing plate, the widthwise distal ends of the first and second side plates are formed on the inner surfaces of the bases of the both bent edges of the first raceway. Pressing to secure the end of the first raceway to the first insert, the end of the second raceway comprising a channel material having a U-shaped cross section with bent edges on both sides of the opening Second inside
The second insert is inserted such that the bottom plate of the raceway and the second fixed plate overlap and both side plates of the second raceway and the third and fourth side plates overlap. A second set screw is screwed into the second screw hole from the inside of the second fixing plate, and the second set screw is screwed into the second set screw at the tip of the second set screw.
By pressing the bottom plate of the raceway of the second raceway in a direction away from the second fixing plate, the widthwise distal ends of the third and fourth side plates are formed on the inner surfaces of the bases of both the bent edges of the second raceway. A raceway connection, characterized in that the two raceways are connected at right angles and in opposite openings by pressing and fixing the end of the second raceway to the second insert. Metal fittings. 2. An end portion of the second fixed plate on the first fixed plate side, and is bent inside the first and second side plates toward a tip end of the first and second side plates. 2. The raceway connection fitting according to claim 1, further comprising a protective tongue extending therefrom. 3. An end for inserting an end of a second raceway mounted on the second insert into an end of the base of the first and second side plates on the side of the second fixed plate. The raceway connection fitting according to claim 1, comprising a notch. 4. At the base of the third and fourth side plates, both bent edges of the first raceway reach ends of the third and fourth side plates opposite to the second fixed plate. The raceway connection fitting according to claim 1, further comprising an inwardly protruding guide bending portion that allows the first insert to be inserted into the end of the first raceway. 5. The raceway connection fitting according to claim 1, further comprising a mounting plate extending in a longitudinal direction of the first fixing plate from an end of the first fixing plate on the side of the second insertion body.