KR200365957Y1 - Fixing hanger for ceiling pannel - Google Patents

Abstract

The present invention relates to a ceiling panel fixing hanger, and more particularly, to a fastening of a carrying channel and to a ceiling panel fixing hanger for firmly fixing a ceiling panel.

The first feature of the present invention for achieving the above object is to form an upper bent portion is bent the upper end of the vertical piece is fastened to the anchor bolt, the lower panel is fixed to the ceiling panel is formed by bending the lower end of the vertical piece is supported In the hanger,

The lower bent portion is bent in three stages to form a space portion in which the carrying channel is horizontally inserted and supported, and is formed in the ceiling panel fixing hanger to prevent the separation of the carry channel by forming a fastening protrusion on the lower surface of the space portion.

A second feature of the present invention for achieving the above object is to form a top bent portion is bent the top of the vertical piece is anchored to the anchor bolt, the bottom panel is bent by bending the vertical piece is formed in the ceiling panel fixed In the hanger,

The lower bent portion is bent the bottom of the vertical piece to form a clip that is elastically supported on the vertical piece so that the side wall of the carrying channel is inserted and supported, and the mounting jaw is formed at one end of the clip to mount the upper portion of the carrying channel,

The vertical piece is on a ceiling panel fixing hanger in which a fastening protrusion is formed at an upper position of the clip.

The third feature of the present invention for achieving the above object is the bending of the top of the vertical piece is formed an upper bent portion is fastened to the anchor bolt, the bottom of the vertical piece is fixed to the ceiling panel is formed a lower bent portion to support the carrying channel In the hanger,

The lower bent portion is bent the lower side of the vertical piece to form a first horizontal portion to support the upper carrying channel, the first vertical portion to bend one side of the first horizontal portion to support the side wall of the carrying channel is formed, the first vertical A second horizontal portion for supporting the lower portion of the carrying channel is formed by bending the lower end of the upper portion, and forming a second vertical portion for supporting a locking piece of the carrying channel by bending downward one side of the second horizontal portion, and forming the second vertical portion. The ceiling panel fixing hanger is formed by bending upward to form a third horizontal portion having fastening protrusions on the upper surface, and bending one side of the third horizontal portion upward to form a third vertical portion.

A fourth feature of the present invention for achieving the above object is to form an upper bent portion is bent the upper end of the vertical piece is fastened to the anchor bolt, the lower panel is fixed to the ceiling panel is formed by bending the lower end of the vertical piece is supported In the hanger,

The lower bent portion is formed with a first horizontal portion having a fastening protrusion for fastening a lower end of the vertical bending portion in a direction opposite to the upper bent portion to engage the lower end portion of the carrying channel, and upwardly bending one side of the first horizontal portion to carry the carry channel. A first vertical portion is formed to support the engaging piece of the first bent portion, and a second horizontal portion is formed to support a lower portion of the carrying channel by bending one side of the first vertical portion. A sidewall of the carrying channel is bent upward by one side of the second horizontal portion. And a second vertical portion supporting the upper portion, and a third horizontal portion supporting the upper portion of the carrying channel by bending downwardly one side of the second vertical portion.

Description

Fixing hanger for ceiling pannel}

The present invention relates to a ceiling panel fixing hanger, and more particularly, to a fastening of a carrying channel and to a ceiling panel fixing hanger for firmly fixing a ceiling panel.

In general, the ceiling panel fixing hanger is for fixing the ceiling panel to the ceiling, as shown in FIG.

The anchor bolt 6a is fixed to the insert 6 embedded in the ceiling slab s. Then, the anchor bolt 6a is inserted into the fastening hole 2a of the ceiling panel fixing hanger and the nut 6b is fixed to the anchor bolt. Installation of the ceiling panel fixing hanger is completed at 6a. In this state, the carrying channel 8 is installed above the horizontal bent portion 3 of the ceiling panel fixing hanger, the support bar 9 is assembled to the carrying channel 8, and the ceiling panel 7 is mounted on the support bar 9. ), The ceiling panel is installed.

Looking at the Republic of Korea Utility Model No. 97-49733 as an example of the conventional ceiling panel fixed hanger, as shown in Figure 2,

The anchor bolt 6a is fastened to the upper bent part 2 which bends the upper end of the vertical piece 1 to one side, and the lower end of the vertical piece 1 is bent in the opposite direction to the upper bent part 2, but is bent in two stages. Thus, the horizontal bending portion 3 and the vertical bending portion 4 are formed so that the carrying channel 8 is supported.

In particular, the upper bent portion 2 is fastened to the fastening hole (2a) is inserted into the anchor bolt (6a) is fixed to the insert (6) is screwed and fastened with a nut (6b),

The carrying channel 8 is pushed into the space between the vertical bent portion 4 and the horizontal bent portion 3 so that the elastic piece 1a formed on the vertical piece 1 is formed in the carrying channel 8. Support the top.

However, in the process of fastening the carrying channel to the conventional ceiling panel fixing hanger, since the carrying channel 8 is vertically sliding from the upper side to the lower side of the vertical piece 1 and the work is difficult,

Since the resilient piece 1a supports only one upper side of the c-shaped cross section, the carrying channel 8 may not be firmly fixed to the ceiling panel fixing hanger.

Accordingly, the present invention has been made to solve the above problems, and the object of the present invention is to provide a ceiling panel fixing hanger that is easy to fasten the carrying channel and firmly fixes the ceiling panel.

1 is a state diagram of a conventional ceiling panel fixing hanger.

Figure 2 is a cross-sectional view of the combined state of the conventional ceiling panel fixing hanger.

Figure 3 is a perspective view showing a first embodiment of the present invention.

Figure 4 is a cross-sectional view of the coupling state showing a first embodiment of the present invention.

5 is a perspective view showing a second embodiment of the present invention.

6 is a cross-sectional view showing a second embodiment of the present invention.

7 is a perspective view showing another configuration example of the upper bent portion in a second embodiment of the present invention.

8 is a perspective view showing a third embodiment of the present invention.

9 is a cross-sectional view illustrating a third embodiment of the present invention.

10 is a perspective view showing a fourth embodiment of the present invention.

11 is a cross-sectional view illustrating a fourth embodiment of the present invention.

12 is a perspective view showing a fifth embodiment of the present invention.

Figure 13 is a cross-sectional view showing a fifth embodiment of the present invention.

14 is a perspective view showing a configuration example in which the length of the vertical piece is shortened in the fifth embodiment of the present invention.

* Description of the main parts of the drawings *

10: vertical piece

20: upper bent portion 21: slot 22: insertion hole

23: bending

30: lower bend 31: first horizontal portion 32: vertical portion

33: second horizontal portion 33a: fastening protrusions

The first feature of the present invention for achieving the above object is to form an upper bent portion is bent the upper end of the vertical piece is fastened to the anchor bolt, the lower panel is fixed to the ceiling panel is formed by bending the lower end of the vertical piece is supported In the hanger,

The lower bent portion is bent in three stages to form a space portion in which the carrying channel is horizontally inserted and supported, and is formed in the ceiling panel fixing hanger to prevent the separation of the carry channel by forming a fastening protrusion on the lower surface of the space portion.

A second feature of the present invention for achieving the above object is to form a top bent portion is bent the top of the vertical piece is anchored to the anchor bolt, the bottom panel is bent by bending the vertical piece is formed in the ceiling panel fixed In the hanger,

The lower bent portion is bent the bottom of the vertical piece to form a clip that is elastically supported on the vertical piece so that the side wall of the carrying channel is inserted and supported, and the mounting jaw is formed at one end of the clip to mount the upper portion of the carrying channel,

The vertical piece is on a ceiling panel fixing hanger in which a fastening protrusion is formed at an upper position of the clip.

The third feature of the present invention for achieving the above object is to form an upper bent portion to bend the top of the vertical piece to anchor the anchor bolt, and to fix the ceiling panel is formed a lower bent portion to support the carrying channel by bending the bottom of the vertical piece In the hanger,

The lower bent portion is bent the lower side of the vertical piece to form a first horizontal portion to support the upper carrying channel, the first vertical portion to bend one side of the first horizontal portion to support the side wall of the carrying channel is formed, the first vertical A second horizontal portion for supporting the lower portion of the carrying channel is formed by bending the lower end of the upper portion, and forming a second vertical portion for supporting a locking piece of the carrying channel by bending downward one side of the second horizontal portion, and forming the second vertical portion. The ceiling panel fixing hanger is formed by bending upward to form a third horizontal portion having fastening protrusions on the upper surface, and bending one side of the third horizontal portion upward to form a third vertical portion.

A fourth feature of the present invention for achieving the above object is to form an upper bent portion is bent the upper end of the vertical piece is fastened to the anchor bolt, the lower panel is fixed to the ceiling panel is formed by bending the lower end of the vertical piece is supported In the hanger,

The lower bent portion is formed with a first horizontal portion having a fastening protrusion for fastening a lower end of the vertical bending portion in a direction opposite to the upper bent portion to engage the lower end of the carrying channel. A first vertical portion is formed to support the engaging piece of the first bent portion, and a second horizontal portion is formed to support a lower portion of the carrying channel by bending one side of the first vertical portion. A sidewall of the carrying channel is bent upward by one side of the second horizontal portion. And a second vertical portion supporting the upper portion, and a third horizontal portion supporting the upper portion of the carrying channel by bending downwardly one side of the second vertical portion.

Hereinafter, the configuration and operation of the present invention will be described with reference to FIGS. 3 to 9.

The ceiling panel fixing hanger of the present invention is composed of five embodiments.

First, the first embodiment of the ceiling panel fixed hanger 100 of the present invention, as shown in Figures 3 and 4,

The upper bent portion 20 to which the anchor bolt is fastened by bending the upper end of the vertical piece 10 is formed, and the ceiling panel is fixed to the lower bent part 30 on which the carrying channel 8 is supported by bending the lower end of the vertical piece. In the hanger,

The upper bent portion 20 is configured to fasten the anchor bolt (6a),

The lower bent portion 30 is configured such that the carrying channel 8 is easily fastened and firmly supported.

In particular, the upper bent portion 20, as shown in Figure 3, forms an insertion hole 22 into which the double nut 6c coupled to the anchor bolt 6a is inserted,

The slot 21 to which the double nut 6c inserted into one end of the insertion hole 22 is slid is formed.

On one side of the insertion hole 22, a bent piece 23 is formed to prevent separation of the double nut 6c.

As shown in FIG. 3, the lower bent portion 30 is formed by bending the lower end of the vertical piece 10 to support the first horizontal portion 31 supporting the upper portion 8a of the carrying channel.

A first vertical portion 32 is formed to bend one side of the first horizontal portion 31 to support the sidewall 8b of the carrying channel.

The lower end of the first vertical portion 32 is bent upward, and the fastening protrusion 33a formed on the upper surface of the second horizontal portion 33 is formed to support the lower portion 8c of the carrying channel.

In addition, the fastening protrusion 33a may be formed on both sides or any one side of the second horizontal portion 33.

The process of fixing the ceiling panel to the ceiling by the ceiling panel fixing hanger 100 of the first embodiment configured as described above is as follows.

First, the anchor bolt 6a is fastened to the upper bent portion 20, the carrying channel 8 is fastened to the lower bent portion 30, and then the support bar 7 is supported to the carrying channel 8 by the support bar. It is made by fixing the ceiling panel 9 to (7).

In particular, the process of fastening the anchor bolt 6a to the upper bent portion 20,

In the state where the double nut 6c is screwed to the anchor bolt 6a, the double nut 6c is inserted into the insertion hole 22 and then pushed into the slot 21, and then the bending piece 23a is inserted. The double nut 2c is bent to the ball side 22 so that the double nut 2c is not separated through the insertion hole 22.

And, the process in which the carry channel 8 is fastened to the lower bent portion 30,

After the carrying channel 8 is mounted on one side of the second horizontal portion, the carrying channel sidewall 8b is pushed horizontally into the space between the first horizontal portion 31 and the first vertical portion 32 so that the first vertical portion To be in close contact with (32).

Thus, the upper portion 8a of the carrying channel is supported on the lower surface of the first horizontal portion 31, and the lower portion 8c of the carrying channel is supported on the upper surface of the second horizontal portion 33.

At the same time, since the fastening protrusion 33a is elastically supported on the lower side 8d of the carrying channel, the carrying channel 8 is fastened to the ceiling panel fixing hanger 100 of the present invention.

The configuration of the ceiling panel fixing hanger 100 of the second embodiment of the present invention,

In the first embodiment the configuration of the vertical piece 10 and the upper bent portion 20 is the same, the configuration of the lower bent portion 30 is different,

As shown in FIG. 5, the lower bent portion 30 is bent in the opposite direction to the upper bent portion of the vertical piece 10 to form a first horizontal portion 34 supporting the lower portion 8c of the carrying channel. ,

A fastening protrusion 34a is formed on an upper surface of the first horizontal portion 34,

A vertical portion 35 is formed to support one side of the first horizontal portion 34 by bending upward to support the sidewall 8b of the carrying channel.

The upper part of the vertical part 35 is bent toward the vertical piece 10 to form a second horizontal part 36 supporting the upper part 8a of the carrying channel.

In addition, the fastening protrusion 34a may be formed on both sides or any one side of the first horizontal portion 34.

As shown in FIG. 7, the length of the vertical piece 10 may be shortened, and the slot 21 of the upper bent portion 20 may be oriented in the longitudinal direction of the carrying channel 80.

The process of fixing the ceiling panel to the ceiling by the ceiling panel fixing hanger 100 of the second embodiment of the present invention constituted as described above, in which the anchor bolt 6a is fastened to the upper bent portion 20 in the first embodiment. The process is the same, the process in which the carry channel 8 is fastened to the lower bent portion 30 is different,

The process in which the carrying channel 8 is fastened to the lower bent portion 30,

The carrying channel 8 is pushed vertically into the space between the second horizontal portion 36 and the vertical piece 10 to be mounted on the first horizontal portion 34, and then pushed in the horizontal direction to push the upper portion of the carrying channel. (8a) is in close contact with the lower surface of the second horizontal portion 36, the carrying channel sidewall (8b) is in close contact with the vertical portion 35, the lower portion of the carrying channel (3c) on the upper surface of the first horizontal portion (34) Ensure close support.

At the same time, since the fastening protrusion 34a is elastically supported on the lower side 8d of the carrying channel, the carrying channel 8 is fastened to the ceiling panel fixing hanger 100 of the present invention.

The configuration of the ceiling panel fixing hanger 100 of the third embodiment of the present invention,

In the first embodiment, the configuration of the upper bent portion 10 is the same, and the configuration of the lower bent portion 30 and the vertical piece 10 is different,

The lower bent portion 30 is bent the lower end of the vertical piece 10 to form a clip 37 which is elastically supported on the vertical piece 10 so that the side wall 8b of the carrying channel is inserted and supported, and at one end of the clip The mounting jaw 38 for mounting the upper portion 8a of the carrying channel is formed.

In addition, the fastening protrusion 10a may be formed on both sides or one side of the vertical piece 10.

The process of fixing the ceiling panel to the ceiling by the ceiling panel fixing hanger 100 in the third embodiment of the present invention configured as described above, in the first embodiment the anchor bolt 6a is fastened to the upper bent portion 20 The process is the same, the process in which the carry channel 8 is fastened to the lower bent portion 30 is different,

The process in which the carrying channel 8 is fastened to the lower bent portion 30,

When the carrying channel 8 is pushed vertically to be inserted between the clip 37 and the vertical piece 10 along the vertical piece 10,

The side wall 8b of the carrying channel is elastically supported by the clip 37 toward the vertical piece 10 side.

In addition, at the same time, since the fastening protrusion 10a supports the upper portion 8a of the carrying channel inserted therein, the carrying channel 8 is fastened to the ceiling panel fixing hanger 100 of the present invention.

The configuration of the ceiling panel fixing hanger 100 of the fourth embodiment of the present invention,

In the first embodiment, the configuration of the upper bent portion 10 is the same, and the configuration of the lower bent portion 40 is different,

As shown in FIGS. 10 to 11, the lower bent portion 40 is formed with a first horizontal portion 41 that supports the upper portion of the carrying channel by bending the lower side of the vertical piece 10. A first vertical portion 42 is formed by bending one side to support the sidewall of the carrying channel, and a second horizontal portion 43 supporting the lower portion of the carrying channel by bending upwardly the lower end of the first vertical portion 42. Is formed, and the second vertical portion 44 is bent downward at one side of the second horizontal portion 43 to support the engaging piece of the carrying channel, and the upper surface is bent upward at the second vertical portion 44. A third horizontal portion 45 having a fastening protrusion 45a is formed in the fastening protrusion 44a, which is formed on both sides or one side of the third horizontal portion 45, and the third horizontal portion 45 is formed. It is configured by bending one side of the up) to form a third vertical portion 46.

The process of fixing the ceiling panel to the ceiling by the ceiling panel fixing hanger 100 according to the fourth embodiment of the present invention constituted as described above, in which the anchor bolt 6a is fastened to the upper bent portion 20 in the first embodiment. The process is the same, the process in which the carrying channel 8 is fastened to the lower bent portion 40 is different,

The process in which the carrying channel 8 is fastened to the lower bent portion 40,

After the carrying channel 8 is mounted between the third horizontal portion 45 and the third vertical portion 46, the carrying channel 8 is pushed horizontally into the first vertical portion 42 so that the carrying channel sidewall 8b is moved to the first vertical portion. To be in close contact with (42).

Thus, the upper portion 8a of the carrying channel is supported on the lower surface of the first horizontal portion 41, and the lower portion 8c of the carrying channel is supported on the upper surface of the second horizontal portion 43.

At this time, the locking piece 8e of the carrying channel is supported by the second vertical portion 44, and at the same time, since the fastening protrusion 45a is elastically supported by the locking piece 8e of the carrying channel, the carrying channel 8 It is fastened to the ceiling panel fixing hanger 100 of the present invention.

As described above, the fourth embodiment of the present invention has an effect of firmly fixing the ceiling panel while easily installing the ceiling panel fixing hanger on the carrying channel without removing the engaging pieces 8e formed in the longitudinal direction in the carrying channel. .

The configuration of the ceiling panel fixing hanger 100 of the fifth embodiment of the present invention,

In the first embodiment, the configuration of the upper bent portion 10 is the same, and the configuration of the lower bent portion 40 is different,

12-13, the lower bent portion 50 is a fastening protrusion for fastening the lower end of the vertical piece 10 in the opposite direction to the upper bent portion 20 to fasten the lower end of the engaging piece 8e of the carrying channel. A first horizontal portion 51 having a 51a is formed, and the fastening protrusion 51a is formed on both sides or one side of the first horizontal portion 51, and one side of the first horizontal portion 51. Is bent upward to form a first vertical portion 52 that supports the engaging piece 8e of the carrying channel, and a second side that bends one side of the first vertical portion 52 to support the lower portion 8c of the carrying channel. A horizontal portion 53 is formed, and one side of the second horizontal portion 53 is upwardly bent to form a second vertical portion 54 supporting the side wall 8b of the carrying channel, and one side of the second vertical portion 53 is formed. The third horizontal portion 55 is bent downward to support the upper portion 8a of the carrying channel.

As shown in FIG. 14, the length of the vertical piece 10 may be shortened, and the slot 21 of the upper bent portion 20 may be oriented in the longitudinal direction of the carrying channel 80.

The process of fixing the ceiling panel to the ceiling by the ceiling panel fixing hanger 100 according to the fifth embodiment of the present invention constituted as described above, in which the anchor bolt 6a is fastened to the upper bent portion 20 in the first embodiment. The process is the same, the process in which the carry channel 8 is fastened to the lower bent portion 50 is different,

The process in which the carrying channel 8 is fastened to the lower bent part 50 is

The carrying channel 8 is pushed vertically into the space between the third horizontal portion 55 and the vertical piece 10 to be mounted on the first horizontal portion 51, and then pushed in the horizontal direction to push the upper portion of the carrying channel. 8a is closely attached to the lower surface of the third horizontal portion 56, and the carrying channel sidewall 8b is closely attached to the second vertical portion 54, and the lower portion of the carrying channel 3c is attached to the second horizontal portion 53. It is in close contact with the upper surface and allows the engaging piece 8e of the carrying channel to be supported by the first vertical portion 52.

At the same time, since the fastening protrusion 51a is elastically supported by the engaging piece 8e of the carrying channel, the carrying channel 8 is fastened to the ceiling panel fixing hanger 100 of the present invention.

As described above, the fifth embodiment of the present invention has an effect of easily installing the ceiling panel fixing hanger on the carrying channel without removing the engaging pieces 8e formed in the longitudinal direction in the carrying channel, while firmly fixing the ceiling panel. .

As described above, the present invention is easy to fasten the carrying channel, and has an effect of firmly fixing the ceiling panel.

Claims (9)

The upper bent part 20 to which the anchor bolt 6a is fastened by bending the upper end of the vertical piece 10 is formed, and the lower bent part 30 to which the carrying channel 8 is supported by bending the lower part of the vertical piece 10. In the ceiling panel fixed hanger is formed, The lower bent portion 30 is bent in three stages to form a space portion through which the carrying channel 8 is horizontally inserted and supported, and forming fastening protrusions 33a and 34a on the lower surface of the carry channel 8. Ceiling panel fixed hanger, characterized in that to prevent the departure. The method of claim 1, The lower bent portion 30 is formed by bending the lower end of the vertical piece 10 to form a first horizontal portion 31 supporting the upper portion 8a of the carrying channel, and bending one side of the first horizontal portion 31. The first vertical portion 32 to support the side wall (8b) of the carrying channel is formed, the second horizontal portion for supporting the lower portion (8c) of the carrying channel by bending upwardly the lower end of the first vertical portion (32) (33) is formed, the ceiling panel fixing hanger, characterized in that the fastening protrusions (33a) formed on the upper surface of the second horizontal portion (33). The method of claim 2, The fastening protrusion (33a) is a ceiling panel fixed hanger, characterized in that formed on both sides or one side of the second horizontal portion (33). The method of claim 1, The lower bent portion 30 has a first horizontal portion 34 supporting the lower portion 8c of the carrying channel by bending the lower end of the vertical piece 10 in the opposite direction to the upper bent portion 20. A fastening protrusion 34a is formed on an upper surface of the first horizontal portion 34, and a vertical portion 35 is formed to support one side of the first horizontal portion 34 to support the side wall 8b of the carrying channel. And bending the upper end of the vertical part (35) toward the vertical piece (10) to form a second horizontal part (36) supporting the upper part (8a) of the carrying channel. The method of claim 4, wherein The fastening protrusion (34a) is a ceiling panel fixed hanger, characterized in that formed on both sides or one side of the first horizontal portion (34). The upper bent part 20 to which the anchor bolt 6a is fastened by bending the upper end of the vertical piece 10 is formed, and the lower bent part 30 on which the carrying channel 8 is supported by bending the lower end of the vertical piece is formed. In the ceiling panel fixed hanger, The lower bent portion 30 is bent the lower end of the vertical piece 10 to form a clip 37 which is elastically supported on the vertical piece 10 so that the side wall (8b) of the carrying channel is inserted and supported, one end of the clip The mounting jaw 38 for mounting the upper portion (8a) of the carrying channel is formed in The vertical piece (10) is a ceiling panel fixed hanger, characterized in that the fastening protrusion (10a) is formed in the upper position of the clip (37). The method of claim 6, wherein the fastening protrusion (10a) is a ceiling panel fixed hanger, characterized in that formed on both sides or any one side of the vertical piece (10). The upper bent portion 20 to which the anchor bolt 6a is fastened by bending the upper end of the vertical piece 10 is formed, and the lower bent part 40 on which the carrying channel 8 is supported by bending the lower end of the vertical piece is formed. In the ceiling panel fixed hanger, The lower bent portion 40 is bent the lower side of the vertical piece 10 is formed with a first horizontal portion 41 for supporting the upper carrying channel (8a), by bending one side of the first horizontal portion 41 A first vertical portion 42 is formed to support the sidewall 8b of the carrying channel, and a second horizontal portion (5c) in which the lower portion 8c of the carrying channel is supported by bending upwardly the lower end of the first vertical portion 42 ( 43 is formed to form a second vertical portion 44 that supports the locking piece 8e of the carrying channel by bending downward one side of the second horizontal portion 43, and the second vertical portion 44 Is bent upward to form a third horizontal portion 45 having a fastening protrusion 45a on the upper surface, and one side of the third horizontal portion 45 is bent upward to form a third vertical portion 46. Ceiling panel fixed hanger. The upper bent portion 20 to which the anchor bolt 6a is fastened by bending the upper end of the vertical piece 10 is formed, and the lower bent portion 50 on which the carrying channel 8 is supported by bending the lower end of the vertical piece is formed. In the ceiling panel fixed hanger, The lower bent portion 50 is a first horizontal having a fastening protrusion 51a for fastening the lower end of the vertical piece 10 in the opposite direction to the upper bent portion 20 to fasten the lower end of the engaging piece 8e of the carrying channel. A part 51 is formed, and the first vertical part 52 is formed to bend up one side of the first horizontal part 51 to support the engaging piece 8e of the carrying channel, and the first vertical part ( 52) bend one side to form a second horizontal portion 53 supporting the lower portion 8c of the carrying channel, and upwardly bend one side of the second horizontal portion 53 to support the sidewall 8b of the carrying channel. And a second horizontal portion (54), and a third horizontal portion (55) for supporting the upper portion (8a) of the carrying channel by bending down one side of the second vertical portion.