JP2969511B2 - Attaching rods for supporting wire boxes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for a wire box supporting rod used when a wire box is installed at a predetermined position by using a partition column or the like via a supporting rod. About.

[0002]

2. Description of the Related Art Conventionally, there has been known a fixture A for a rod material for supporting an electric wire box shown in FIG. The fixture A is formed by punching a rectangular metal plate to form a seat plate 110 and a pair of upper and lower sandwiching pieces 120, 12 at the center of the seat plate 110.
0, and the clamping pieces 120, 12
In FIG. 0, engagement claws 121, 121 for an electric wire box supporting bar (not shown) are formed by cutting into a V shape, and the seat plate 110 is bent in a curved shape.

[0003] Fig. 11 shows an example in which an electric wire box B is installed on partitioning columns 10, 10 via an electric wire box supporting bar 1 using the fixture A of Fig. 12. As shown in the figure, the bar 1 is inserted through holes (not shown in the figure) provided in the left and right pillars 10, 10 to horizontally lie between the pillars 10, 10. While being bridged,
The fitting A is fitted to an end of the bar 1 protruding from the hole of each of the pillars 10. Bar 1
In the attachment A fitted to the end of the rod 1, a pair of holding pieces 120, 120 provided on the fitting A elastically hold the bar 1 and the holding pieces 120, 1 are provided.
The 20 engaging claws 121, 121 are engaged with the bar 1, and the seat plate 110 is pressed against the column 10. And the said electric wire box B is attached to the said bar 1 via the mounting bracket C. FIG. In addition, 1 'is a rod material which is horizontally spanned between the left and right pillars 10 and 10 using the mounting fixture A, and 18 is a rod material 18 which is set up from the electric wire box B. 12 is a holding tool for holding it.

[0004] In addition to the one shown in FIG. 12, there has been a conventional attachment that can be attached to a column with a drill screw.

[0005]

When the conventional fixture A shown in FIG. 12 is attached to the end of the bar 1, the upper edge 111 and the lower edge 112 of the curved seat plate 110 are connected to each other. The engaging pawls 121, 12 of the pair of sandwiching pieces 120, 120 are grasped by fingers and the seat plate is bent back.
In this manner, the gaps between the bars 1 are increased, and after that, the pair of holding pieces 120 are inserted into the ends of the bar 1.

However, the seat plate 110 is thin,
In addition, since the seat plate 110 has such a rigidity that it does not easily bend with a small force, when the upper edge 111 and the lower edge 112 are grasped with fingers, the seat plate 110 is bent. There was a problem that my fingers hurt.

[0007] Further, in the case of using a power tool for fastening a drill screw to a work site, a power source of a power tool for tightening the drill screw is required, and an electric cord of the power tool is complicated on a floor. The workability is likely to be reduced because the workability must be reduced. The use of a battery-powered tool eliminates the need for complicated wiring around the floor, but in general, a battery-powered tool tends to run out of power and has to be recharged frequently. There is.

The present invention has been made in view of the above circumstances, and when inserting the mounting tool into a wire box supporting bar, the mounting tool is gripped by a finger of a hand to engage a pair of holding pieces. It is an object of the present invention to provide an electric wire box supporting bar mounting tool that does not hurt the finger so much even if the interspaces of the dovetails are widened.

It is another object of the present invention to provide an electric wire box supporting bar which can easily perform an electric wire box installation work without having to screw a drill screw into a column.

[0010]

According to the present invention, there is provided a fixture for a wire box supporting rod according to the present invention, wherein an opening is formed in a seat plate into which an end of the wire box supporting rod is inserted, and the opening is formed in the opening. ,
Direction extending out and of which the openings butted to each other
A pair of holding pieces having elasticity that are pushed rearward by the ends of the bars inserted through from the front and receive the ends of the bars in a fitting manner are integrally provided, and these are integrally connected. Engaging claws for engaging the ends of the received bars and positioning the bars are formed on the opposing edges of the holding piece, and are located on opposite sides of the seat plate. Do 2
Each of the two edges is provided with a protruding portion bent and formed so as to extend forward in the thickness direction of the seat plate portion, and the seat plate portion, the pair of sandwiching piece portions, and the protruding piece portion are provided. It is provided on one elastic metal plate.

In this mounting device, the protruding piece provided at each of the two edges of the seat plate is gripped by a finger of a hand or a tool such as pliers, and the seat plate is bent back. When it is bent into a shape, the interval between the pair of the holding pieces is increased. In this case, even if the user grips the seat plate portion with his / her finger, the finger is not sorely hurt because the protruding portion formed to extend forward in the thickness direction of the seat plate portion hits the finger. . In addition, the protruding piece is located in front of the seat plate in the thickness direction.
When the protruding portion is gripped with fingers or pliers of the hand, the seat plate portion has a bending force in the direction of increasing the mutual interval between the pair of holding portions. Is added. When the force holding the seat plate is released, the seat plate returns to its original shape.

In this fixture, when the ends of the bar are fitted between the holding pieces while the pair of holding pieces are pushed rearward through the opening, the holding pieces are connected to each other. The engaging claw is engaged with the bar to position the bar.

Furthermore, fitting the wire box supporting bars of the present invention, each of the nipping pieces of a pair, extending their the engaging claw portion of the protrusion portion from the seat plate portion Projecting rearward on the opposite side to the exit direction and inclining so as to move away from the seat plate portion as approaching the engaging claw portion from a base portion which is a continuous portion with the opening portion. It is.

[0014] According to this attachment, it is easy to perform the work of fitting between the holding pieces while pushing the ends of the bar material through the opening and pushing the pair of holding pieces backward. Become.

Furthermore, fitting the wire box supporting bars of the present invention, together with the nipping pieces of a pair are formed in shape and cut-and-raised to the seat plate portion, switching their nipping pieces The raised trace is formed as the opening, and a bent portion is formed at a center portion of the pair of the holding pieces in the seat plate portion in the abutting direction, and the bent portion is formed of two of the seat plate portions. The seat plate portion is bent into a cross-shaped shape through the bent portion so as to be located on the side of the projecting portion in the extending direction from the end edge,
Further, the bent portion is located closer to the base of the projecting portion than the extending end of the projecting portion.

By the way, in the case where each of the sea urchin pair of the nipping pieces by the above is inclined, their nipping pieces formed into shape and cut-and-raised to the seat plate portion, of their nipping pieces When the cut-and-raised trace is formed in the opening, the pair of the holding pieces are inevitably opened in the mounting fixture in which the seat plate is formed flat. Then, when the holding pieces are opened from the beginning, the ends of the bar are fitted to each other while pushing the pair of holding pieces further rearward through the opening. In this case, the clamping force of the clamping pieces acting on the bar is reduced by the amount that the clamping pieces are opened from the beginning.

[0017] In contrast, if bent cross section dogleg-shaped the seat plate portion via the bent portion as described above, can be kept closed form the pair of the nipping pieces described above become. Therefore, when the end portions of the bar members are fitted between the holding member portions while further expanding the pair of the holding piece portions rearward through the opening, the holding member portions with respect to the bar material are provided. The situation that the pinching force of the vehicle becomes weak does not occur.

Further, in the fixture having the seat plate portion bent in a rectangular shape in cross section, when the seat plate portion is grasped and bent back, the seat plate portion is provided with the bent portion as a fulcrum. It may happen that the pair of holding pieces warp in a direction to reduce the mutual interval. Therefore, the upper Kiorikyoku portion is located at the base side of the protrusion portion than the extending end of the protruding portions. With this configuration, when the seat plate portion bent in a rectangular shape is grasped, the seat plate portion is subjected to a bending force in a direction to increase the mutual interval between the pair of the holding pieces. become.

The construction and operation of the inventions described above becomes even more specifically by the description of the following embodiments.

[0020]

FIG. 1 is a perspective view of a fixture A showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the fixture A of FIG. 1, and FIG. 3 is a view of the fixture A of FIG. FIG. 4 is a front view showing a mounting structure of the used electric wire box B, FIG. 4 is a plan view showing a mounting structure of the electric wire box B using the mounting tool A of FIG. 1, and FIG. 6, FIG. 6 is a side view corresponding to a view taken in the direction of arrow VI in FIG. 5, FIG. 7 is a perspective view of another fixture A ', and FIG. FIG. 9 is an enlarged partial cross-sectional view of a part along the line IX-IX in FIG. 3, and FIG. 10 is an electric wire box B and the like. It is a schematic perspective view.

As shown in FIG. 1, the attachment A is made of a rectangular metal plate made of stainless steel. The mounting A has an opening 21 in the rectangular seat plate 2 into which the end of the wire box supporting bar 1 is inserted. A pair of sandwiching pieces 22, 22 extending in the direction in which they abut each other are integrally connected to the opening 21, and opposing edges of the sandwiching pieces 22, 22 are respectively provided on the opening 21. Engagement claw portions 23, 23 cut into a V shape are formed. Further, 2 is located on the opposite side of the seat plate 2.
A protruding piece 24 formed at each of the two edges 2a, 2a so as to extend in the thickness direction T of the seat plate 2;
24 are provided.

As shown in FIG. 2, in the mounting fixture A, each of the pair of holding pieces 22,
The engaging claw portions 23 protrude from the seat plate portion 2 in a direction opposite to the extending direction F of the protruding pieces 24, 24, and a base portion 22 a which is a connecting portion with the opening portion 21. ,
It is inclined so as to move away from the seat plate portion 2 as it approaches the engaging claw portions 23 from 23a.

Further, in the mounting fixture A, the pair of holding pieces 22 are formed in the seat plate 2 in a cut-and-raised manner, and the holding pieces 22, 22 are cut and raised. The mark is the opening 21. And the seat plate 2
A bent portion 25 is formed at a central portion of the pair of holding piece portions 22 in the abutting direction in the bent portion 25, and the bent portion 25 is larger than the two end edges 2 a of the seat plate portion 2. The seat plate portion 2 is bent into a cross-shaped shape via the bent portion 25 so as to be located on the extension direction F side of the protruding pieces 24, 24. FIG. 2 shows the bent portion 2 from the edge 2a.
The horizontal distance up to 5 is indicated by the symbol L1. Further, the bent portion 25 is provided with an extension end 24a of the protruding piece portion 24, 24,
It is located closer to the base of the protruding piece 24 than 24a.
In FIG. 2, the horizontal distance between the bent portion 25 and the extended ends 24a, 24a of the protruding pieces 24, 24 is indicated by symbol L2.

In such a mounting fixture A, the pair of sandwiching pieces 22, 22 are arranged such that the opening 21 is positioned in front of the opening 21 .
It pushed open rearward by the end of the rod 1 which is inserted through al and acts to receive an end portion of the rod member 1 to the mating shape. And, in this way, the pair of holding piece portions 22, 2
The engaging claws 23 are engaged with the ends of the bar 1 received between the two. The seat plate 2, the pair of sandwiching pieces 22, 22, and the protruding pieces 24, 24 are provided on a single elastic metal plate.

Referring to FIGS. 3 and 4, a description will be given of a mounting structure of the electric wire box B using the mounting fixture A. In the case shown in FIG. 3 and FIG. 4, the pillars 3 for partitioning are set in the same direction and are erected at intervals, and the pillars 3, 3
The electric wire box B shown in FIG. 10 is installed at a predetermined position between them. Here, the meaning that the pillars 3 and 3 are in the same direction means that the openings 35 and 35 formed between the rear flanges 33 and 33 of the pillar 3 are oriented in the same direction. Means that the pillars 3, 3 are erected.

The electric wire box B shown in FIG. 10 has a rectangular box body 7 having a bottom and made of synthetic resin. The box body 7 has a bottom wall 71 and a rectangular cylindrical side wall 72 at appropriate positions.
An electric wire introduction hole 74 closed by a closing plate 73 that can be separated from the bottom wall 71 and the side wall 72 by applying a pressing force is provided. Further, each of two adjacent corner portions of the bottom wall 71 is provided integrally with the box body 7 and provided with a pair of protrusions 75, 75, and these two are provided together. The protruding portions 75, 75 forming a set are provided with rod insertion holes 76, 76 concentrically. Then, the electric wire box B can be attached to the rod materials 1, 1 only by inserting the electric wire box supporting rods 1, 1 respectively into the one set of protrusions 75, 75. Such an electric wire box B can be used as an electric wiring box such as an outlet box or a switch box.

In the mounting structure of the electric wire box B shown in FIGS. 3 and 4, the end of the bar 1 is mounted on one of the pillars 3 via another mounting member A 'shown in FIG. .
The attachment A 'is formed by bending two longitudinal portions of a rectangular metal plate made of stainless steel, and has an elongated flat plate-shaped bar support 4 and the bar support 4. Bent portions 41,
And a support piece 42 in the form of a plate which is continuously provided through the support 41. The pair of support pieces 42, 42 are inclined with respect to the bar support 4 so as to open toward the rear.

The bar support portion 4 includes a rectangular opening 43 into which the end of the bar 1 is inserted, and a pair of sandwiching pieces 44, 44 integrally connected to the opening 43. The rod holding portions 45 are provided at a plurality of locations. These bar holders 45 hold the ends of the bar 1 inserted through the openings 43 with a pair of sandwiching pieces 44, 44.
The bar 1 can be received between the two.

The attachment A 'is attached to one of the pillars 3 as shown in FIGS. That is, as shown by the phantom line in FIG. 8, when the support piece 42 is not displaced, the horizontal length H1 of the support piece 42 is determined by the front wall 31 and the rear flange 33 of the column 3. Is slightly longer than the horizontal interval H2. For this reason, when the attachment A ′ is pushed into the space between the front wall 31 and the rear flange 33 of the column 3, the upper and lower support pieces 42 pushed by the front wall 31, As the horizontal length H1 of the support pieces 42, 42 becomes shorter, the ends of the support pieces 42, 42 in the width direction are formed on the column 3 as shown in FIG. The fixture A can be pushed in until it hits the side wall 32 on one side. When the attachment A is pushed in until the widthwise edges of the support pieces 42, 42 hit the one side wall 32 of the column 3, the support piece 4 is pressed.
Since the rods 2 and 42 are elastically abutting against the front wall 31 of the column 3, the bar support portion 4 is elastically pressed against the rear flange 33 of the column 3 by the reaction force, Thereby, the fixture A is fixed to the column 3. In addition, the protrusion 48 provided in a cut-and-raised shape at the width direction end of the bar support portion 4.
Are fitted into and engaged with the ribs 34 provided on the rear flange 33 of the column 3 as shown in FIG.

When the bar 1 is laid between the two pillars 3, 3, for example, one end of the bar 1 is inserted into an insertion hole 36 formed in the other pillar 3. (See FIG. 4 or FIG. 5), the bar 1 is pulled back, and the other end of the bar 1 is fixed to the predetermined bar of the bar support 2 in the above-described other mounting fixture A ′. 8 is inserted into the material holding portion 45 as shown by the arrow m in FIG. In this manner, the end of the bar 1 is connected to the pair of holding pieces 44, 44 of the bar holder 45.
44 is expanded and received between the clamping pieces 44,44. For this reason, those holding piece portions 44,
The bar 1 is positioned by 44.

Thereafter, the mounting member A is mounted on the other end of the bar 1 inserted into the insertion hole 36 of the other column 3. That is, as shown by the imaginary line in FIG. 5, the upper and lower protruding pieces 24, 24 are grasped by a tool such as a finger or a pair of pliers and the protruding pieces 24, 24 are indicated by arrows n, n. When the seat plate 2 is pressed in a direction approaching each other, the seat plate 2 warps in a direction in which the seat plate 2 extends with the bent portion 25 as a fulcrum. Since the gap is slightly opened (the mutual gap when opened is indicated by reference numeral D2), in this state, the pair of holding pieces 22, 22 are inserted into one end of the bar 1 and then the projecting piece is inserted. Parts 24, 24 to the front wall 3 of one pillar 3
The mounting fixture A may be released by pressing against the inner surface of No. 1.
In this case, as shown in the solid line of FIG. 5 and FIG.
The mutual interval between the pair of sandwiching pieces 22 is reduced by the return deformation of the seat plate 2 (the mutual interval when narrowed is denoted by D1).
), The engaging claws 23, 23 engage the ends of the bar 1 to position the bar 1. The operation of inserting the mounting fixture A into one end of the bar 1 as described above can be performed using the opening 35 of one of the pillars 3.

As shown in FIG. 3, when one electric wire box B is installed using two rods 1 and 1, the height of the rod supporting portion 2 of the above-mentioned other fixture A 'is set. By appropriately selecting the two bar holders 45 provided at different positions,
The ends of the two bars 1 are individually positioned at the respective bar holders 45. In addition, two insertion holes 36 are provided in the other column 3, and the ends of the two rods 1 are separately inserted into each of the insertion holes 36, and the above-described mounting tool A is attached. It is good to attach it. The electric wire box B is attached to the two rods 1, 1 before the two rods 1, 1 are laid between the pillars 3, 3. In addition, it is also possible to mount a plurality of electric wire boxes B on the bar 1 side by side.

[0033]

According to the wire box supporting bar mounting tool of the present invention, the finger of the hand does not hurt so much when the mounting tool is mounted on the end of the bar. In addition, since it is not necessary to screw a drill screw into the column, the electric wire box installation work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixture showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the fixture of FIG. 1;

FIG. 3 is a front view showing an electric wire box mounting structure using the mounting tool of FIG. 1;

FIG. 4 is a plan view showing an electric wire box mounting structure using the mounting tool of FIG. 1;

FIG. 5 is an enlarged vertical sectional view showing a procedure for attaching a wire box supporting rod to the fixture.

6 is a side view corresponding to the view taken in the direction of arrow VI in FIG. 5;

FIG. 7 is a perspective view of another attachment.

FIG. 8 is an enlarged longitudinal sectional view of a main part showing a procedure for attaching another attachment to the bar.

FIG. 9 is an enlarged partial sectional view of a portion along IX-IX in FIG. 3;

FIG. 10 is a schematic perspective view showing an electric wire box and the like.

FIG. 11 is a perspective view showing a conventional electric wire box mounting structure.

FIG. 12 is a perspective view of a conventional attachment.

[Explanation of symbols]

 Reference Signs List A Attaching tool 1 Wire box support bar 2 Seat plate 2a Edge of seat plate 21 Opening 22 Nipping piece 23 Engagement claw 24 Projecting piece 25 Folding part F Projecting direction of projecting piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-12312 (JP, A) JP-A 48-96356 (JP, U) JP-A 62-121415 (JP, U) JP-A 62-96 74431 (JP, U) JP-A 62-84316 (JP, U) JP-A 62-84317 (JP, U) JP 17-17231 (JP, Y1) (58) Fields surveyed (Int. ⁶ , DB name) H02G 3/08

Claims (1)

(57) [Claims] An opening for inserting an end of an electric wire box supporting bar is formed in a seat plate portion, and the opening extends in a direction in which the opening portion is in contact with each other, and the opening extends forward of the opening .
A pair of nipping pieces to the end provided with elastic to accept the fitting shape of the rod is pushed open toward the rear is integrally connected to the end of the rod which is inserted through et, these clamping At each of the opposing edges of the piece, engaging claws are formed which engage the ends of the received bar and position the bar, and are located on opposite sides of the seat plate. Each of the two edges is provided with a protruding portion bent so as to extend forward in the thickness direction of the seat plate portion, and the seat plate portion, a pair of the holding piece portions, and the protruding piece portion are provided. Has elasticity 1
And a pair of the holding pieces are provided with the engaging claws, respectively.
Is opposite to the direction in which the protruding piece extends from the seat plate
Base that protrudes to the rear of the
From the seat plate as it approaches the engaging claw from the
It is inclined so that it goes away, and a pair of the above-mentioned holding pieces are cut and raised in the above-mentioned seat plate.
And the cut and raised traces of those holding pieces
And a pair of the holding piece portions in the seat plate portion.
A bent portion is formed at the center in the butting direction, and this bent portion is formed.
Part of the protruding portion extends beyond the two edges of the seat plate.
Through the bent part, the seat is located on the outgoing side.
The plate is bent in a rectangular shape in cross section, and
The curved portion is closer to the base of the projecting portion than the extended end of the projecting portion.
A mounting member for a rod material for supporting an electric wire box, wherein the mounting member is located .