Bend rack for cable rack

Abstract

To provide a bend rack for a cable rack capable of forming a bend rack without requiring a special facility such as a dedicated bending metal fitting or a processing facility.SOLUTION: In a bend rack for a cable rack, a master beam P includes a side plate 10 with both longitudinal side edges of a band plate in a curved shape, and an edge bent portion 20 fixed along both longitudinal side edges of the side plate 10, and the edge bent portion 20 includes a reinforcing plate 21 disposed along the longitudinal side edge of the side plate 10, and a coupling plate 22 for bending a longitudinal side edge of the reinforcing plate 21 and fixing it to a plate surface of the side plate 10.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a bend rack for cable racks that is used by being connected to a linear cable rack, for example, when laying electric wires or cables from a horizontal portion to a vertical portion.

Background Art

[0002] When laying electric wires or cables from a horizontal portion to a vertical portion, as described in Patent Document 1, an outside bend rack or an inside bend rack formed by bending a linear cable rack is used (see FIG. 6). These bend racks are manufactured by bending a linear rack using a dedicated bending die or facility.

[0003] On the other hand, as described in Patent Document 2, a bendable cable rack that allows wiring while avoiding protruding portions of building frames, air conditioning equipment and the like is also used. This cable rack is formed by dividing a main girder into a plurality of main girder unit members 1, which are bendably connected by connecting pin members 7, and by changing the bending angle and orientation of the main girder unit members 1, it has the advantage that it can be laid freely to correspond to various facilities. Therefore, by bending this bendable cable rack, it can be used as an outside bend rack or an inside bend rack.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The vent rack described in Patent Document 1 has a bent edge along the longitudinal edge of the main beam for strength reinforcement, making it difficult to bend the main beam into an R shape without a dedicated bending die or processing equipment. Moreover, when the cable rack is tall, that is, when the main beam is wide, the difference in dimensions between the outer and inner sides of the main beam becomes large, leading to problems such as distortion during bending, where the outer side stretches and the inner side sags.

[0006] Furthermore, in cases where dedicated bending dies are unavailable or the width of the main beam is impossible to manufacture, a short rack 100 and a bent connecting fitting 200 may be used to address the issue (see Figure 7). However, when connecting fittings in this way, an angle is created at the bent portion, which cannot accommodate the R-shape of the cable. This can cause the cable to lift up from the angled portion and protrude from the rack. In particular, the taller the cable rack, the thicker the cable is often used, and the larger the R-shape of the cable, so the lifting of the cable becomes more pronounced.

[0007] On the other hand, the flexible cable rack described in Patent Document 2 has a large number of parts, which makes the bending adjustment work at the site complicated. Therefore, even though it is suitable for angle adjustment over short distances, it is difficult to use it as a substitute for the outside bend racks or inside bend racks used in general construction.

[0008] Therefore, the present invention was created to solve the above-mentioned problems, and aims to provide a cable rack bend rack that can be formed without requiring special equipment such as dedicated bending fittings or processing equipment, and that can accommodate the R shape of cables. [Means for solving the problem]

[0009] To achieve the above objective, the first means of the present invention is a cable rack bend rack comprising a main beam P that constitutes a bend rack connected between cable racks and a sub-beam Q that connects between the main beams P, wherein the main beam P comprises a side plate 10 having a shape in which both longitudinal edges of the strip are curved to match the bend angle, and edge bending portions 20 fixed along both longitudinal edges of the side plate 10, The aforementioned The edge bending portion 20 is a strip-shaped reinforcing plate 21 arranged along the longitudinal side edge of the side plate 10 of the main beam P, The aforementioned The reinforcing plate 21 is bent from its longitudinal side edge , the above The device comprises a plurality of connecting plates 22 fixed to the surface of the side plate 10.

[0010] The reinforcing plate 21 of the second means is adjacent It is bent between the connecting plates 22 and configured to follow the curve of the side plate 10.

[0011] The side plate 10 of the third means has curved longitudinal edges on both sides that are formed in an arc shape or polygon shape.

[0012] The connecting plate 22 of the fourth means is formed in a trapezoidal or arc shape.

[0013] In the fifth means, the connecting plate 22 has a gap 22A formed between adjacent connecting plates 22 for inserting a bending jig.

[0014] The sixth means, the connecting plate 22, is fixed to the side plate 10 by a connecting member that penetrates the connecting plate 22.

[0015] The seventh means is a main beam constituting a bend rack, comprising a side plate 10 having a shape in which both longitudinal edges of the strip plate are curved to match the bend angle, and edge bending portions 20 fixed along both longitudinal edges of the side plate 10, The aforementioned The edge bending portion 20 is The aforementioned A strip-shaped reinforcing plate 21 is arranged along the longitudinal side edge of the side plate 10, The aforementioned The reinforcing plate 21 is bent from its longitudinal side edge , the abovea main girder comprising a plurality of coupling plates 22 fixed to the plate surface of the side plate 10.

[0016] The eighth means has a shape such that when the reinforcing plate 21 is bent so as to wrap the connecting plate 22 inward, adjacent connecting plates 22 do not interfere with each other.

[0017] The connecting plate 22 of the ninth means is shaped such that when the reinforcing plate 21 is bent so as to wrap the connecting plate 22 inward, adjacent connecting plates 22 do not interfere with each other. [Effects of the Invention]

[0018] In the present invention, by fixing the bent edge portions 20 to both longitudinal side edges of the curved side plate 10 of the main girder P, an outside rack or an inside bend rack can be formed without requiring special equipment such as dedicated bending fittings and processing equipment.

[0019] Furthermore, the plurality of coupling plates 22 of the bent edge portion 20 are configured to be bent from the longitudinal side edge of the reinforcing plate 21 and fixed to the plate surface of the side plate 10, so that it is possible to conform to the R shape of the cable. [Brief Description of the Drawings]

[0020] [Figure 1] It is an exploded perspective view showing one embodiment of the present invention. [Figure 2] The main girder of the present invention is shown, where (a) is an exploded perspective view, and (b) is a perspective view. [Figure 3] The bent edge portion of the present invention is shown, where (a) is a developed view, (b) is a bent side view, and (c) is an enlarged side view of the main part. [Figure 4] It is a front view of the main part showing the bent portion of the reinforcing plate of the present invention. [Figure 5] It is a perspective view of the main part showing an example of the bent edge portion of the present invention. [Figure 6] It is a perspective view showing an example of a conventional bend rack. [Figure 7] It is a perspective view corresponding to connecting a short-length rack and a bent connecting fitting. [Mode for Carrying Out the Invention]

[0021] The present invention relates to a bend rack that connects between horizontal and vertical cable racks, or between cable racks with steps, and comprises a main beam P and a sub-beam Q connected to the main beam P by fixing bolts Q1 (see Figure 1). Furthermore, the main beam P comprises a side plate 10 and an edge bend portion 20 (see Figure 2).

[0022] The side plate 10 has a shape in which both longitudinal edges of the strip are curved to match the bend angle (see Figure 2). Although the illustrated side plate 10 is curved in an arc shape, it is also possible to form both longitudinal edges of the side plate 10 into a polygonal shape. Through holes 11 for passing fixing bolts Q1 are formed in the surface of the side plate 10. In addition, both longitudinal ends of the side plate 10 have connection parts 12 with a U-shaped cross-section to connect to adjacent cable racks.

[0023] The edge bending section 20 is a member fixed along both longitudinal edges of the side plate 10, reinforcing the side plate 10 and increasing the strength of the main beam P (see Figure 2). This edge bending section 20 includes a reinforcing plate 21 and a connecting plate 22 (see Figure 3(a)).

[0024] The reinforcing plate 21 is a strip-shaped member positioned on the inside of the main girder P along the curved longitudinal edges of the side plate 10 (see Figure 3(b)). The illustrated reinforcing plate 21 has a bent portion 21A formed between the connecting plates 22 (see Figure 3(c)).

[0025] This reinforcing plate 21 is bent between multiple connecting plates 22 to conform to the curve of the side plate 10 (see Figure 2(a)). In other words, the reinforcing plate 21 is bent at the position of the bent portion 21A formed between the connecting plates 22 (see Figure 4). Therefore, the more times the reinforcing plate 21 is bent, the closer it can come to the R shape of the side plate 10 (see Figure 2(b)). By making the reinforcing plate 21 closer to the R shape, it becomes a main beam that conforms to the R shape of the cable, and as a result, prevents the cable from floating up.

[0026] The bending direction of the bent portion 21A is reversed on both longitudinal edges of the side plate 10 where the reinforcing plate 21 is placed (see Figure 2). That is, when the reinforcing plate 21 is placed on the inside of the side plate 10, the connecting plate 22 is bent outwards (see Figure 3(b)). Conversely, when the reinforcing plate 21 is placed on the outside of the side plate 10, the connecting plate 22 is bent inwards (see Figure 5).

[0027] The connecting plates 22 are multiple members connected along one longitudinal edge of the reinforcing plate 21, and are fixed to the surface of the side plate 10 in a state where they are bent approximately perpendicular to the reinforcing plate 21 (see Figure 1). By fixing these bent connecting plates 22 to the surface of the side plate 10, the reinforcing plate 21, which is arranged along the curve of the side plate 10, increases the strength of the main girder P (see Figure 2(b)).

[0028] The illustrated connecting plates 22 are formed in a trapezoidal shape, and a gap 22A is formed between each connecting plate 22 for inserting a bending jig (not shown) (see Figures 4 and 5). Depending on the jig used, the gap 22A may not be necessary. In addition, the shape of the connecting plates 22 can be formed in other shapes such as arcs, in addition to the trapezoidal shape. It is preferable that the shape is such that adjacent connecting plates 22 do not interfere with each other when the reinforcing plate 21 is bent so that the connecting plates 22 are wrapped inward.

[0029] To fix the connecting plate 22 to the surface of the side plate 10, a connecting member (not shown) such as a rivet that penetrates the connecting plate 22 is used. For this reason, some of the connecting plates 22 have through holes 22B through which the connecting member is inserted (see Figures 3 and 5). It is also possible to drill through holes 22B in all of the connecting plates 22.

[0030] Furthermore, the shapes of each component of the present invention are not limited to the illustrated examples, and the configurations of the main beam P and sub-beam Q, or the configurations of the side plate 10 and edge bending portion 20, can be freely designed and modified without altering the essence of the present invention.

[0031] When fixing the edge bending portion 20 to the surface of the side plate 10, the connecting plate 22 may be fixed to the surface of the side plate 10 (the side on which the reinforcing plate 21 extends) as in the above embodiment, or it may be fixed to the back surface of the side plate 10 (the side opposite to the side on which the reinforcing plate 21 extends).

[0032] If the bent edge portion 20 is fixed by welding or the like, it is not necessary to provide the connecting plate 22.

[0033] The present invention also includes a main beam constituting a bend rack, comprising a side plate having a shape in which both longitudinal edges of the strip plate are curved to match the bend angle, and edge bending portions fixed along both longitudinal edges of the side plate, wherein the edge bending portion comprises a strip-shaped reinforcing plate arranged along the longitudinal side edge of the side plate, and a plurality of connecting plates bent from the longitudinal side edge of the reinforcing plate and fixed to the plate surface of the side plate. [Explanation of Symbols]

[0034] P Parent digit Q Sub-digit Q1 Fixing bolt 10 Side panels 11 Through hole 12 Connection part 20 Edge bending section 21 Reinforcement plate 21A Bend part 22 Binding plate 22A gap 22B through hole 100 Short Rack 200 Joint fittings

Claims

1. In a cable rack bend rack consisting of a main beam that constitutes a bend rack connected between cable racks, and a sub-beam that connects between the main beams, The main beam comprises side plates whose longitudinal edges are curved to match the bend angle, and edge bending portions fixed along the longitudinal edges of the side plates. The edge bending portion comprises a strip-shaped reinforcing plate arranged along the longitudinal side edge of the side plate of the main beam, A cable rack bend rack comprising: a plurality of connecting plates that are bent from the longitudinal side edge of the reinforcing plate and fixed to the plate surface of the side plate.

2. The reinforcing plate is bent between adjacent connecting plates and configured to conform to the curve of the side plate, as described in claim 1.

3. The cable rack bend rack according to claim 1, wherein the curved longitudinal edges of the side plate are formed in an arc shape or polygon shape.

4. The connecting plate is formed in a flat trapezoidal or arc-shaped form, as described in claim 1, for a cable rack bend rack.

5. The cable rack bend rack according to claim 1, wherein the connecting plates have gaps formed between adjacent connecting plates for inserting a bending jig.

6. The cable rack bend rack according to claim 1, wherein the connecting plate is fixed to the side plate by a connecting member that penetrates the connecting plate.

7. The parent digit that constitutes the bendrack, It comprises side plates whose longitudinal edges are curved to match the bend angle, and edge bending portions fixed along the longitudinal edges of the side plates, The edge bending portion comprises a strip-shaped reinforcing plate arranged along the longitudinal side edge of the side plate, A main beam comprising a plurality of connecting plates that are bent from the longitudinal side edge of the reinforcing plate and fixed to the plate surface of the side plate.

8. The cable rack bend rack according to any one of Claims 1 to 6, wherein the connecting plate has a shape such that adjacent connecting plates do not interfere with each other when the reinforcing plate is bent so as to wrap the connecting plate inward.

9. The main girder according to claim 7, wherein the connecting plate has a shape such that adjacent connecting plates do not interfere with each other when the reinforcing plate is bent so as to wrap the connecting plate inward.

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