JP3256687B2 - Passage erection metal fittings for H-section steel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for installing a passage above an H-shaped steel groove used in a civil engineering work site or the like.

[0002]

2. Description of the Related Art Conventionally, in construction or civil engineering work sites,
A temporary passage for facilitating traffic of workers is provided. In particular, in the shaft, the H-shaped steel barb installed near the earth retaining sheet pile is narrow, so it is difficult to walk on it and there is a possibility of slipping the foot,
It is dangerous for an operator to travel without providing a temporary passage. Therefore, a scaffolding plate is bridged between steel frames in the shaft,
Alternatively, the passage was provided by directly welding the passage to the H-section steel.

[0003]

However, the passage directly welded to the H-shaped steel has a problem that once it is attached to the H-shaped steel, the removal is troublesome.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a metal fitting for erection of a passage above one H-shaped steel groove.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a plate material extending in a longitudinal direction is connected to both side edges of the plate material so as to form grooves on both surfaces of the plate material. The present invention provides a metal fitting used for erection of a passage along one H-shaped steel formed of a pair of wall materials provided above one groove of the H-shaped steel. The metal fitting is fixed to the main body in a rod shape, a fixed connecting piece for fixing the main body to one wall material of the H-shaped steel, and the main body so as to adjust an interval between the fixed connecting piece. Is mounted movably along the
It has a movable connecting piece for fixing the main body to the other wall material of the H-shaped steel, and a column attached to the main body.

According to a second aspect of the present invention, in the metal fitting according to the first aspect, the support is attached to the main body on a side opposite to the fixed connection piece, and the movable connection piece is provided between the fixed connection piece and the support. Can be moved.

According to a third aspect of the present invention, in the metal fitting according to the first aspect, the H-shaped steel is used for erection which is disposed along a retaining sheet pile. According to a fourth aspect of the present invention, in the metal fitting of the first aspect, the main body is formed of a square pipe.

According to a fifth aspect of the present invention, in the metal fitting according to the first aspect, each of the fixed connection piece and the movable connection piece includes a ring inserted into the main body, and a plate extending in one direction from the ring. The fixed connecting piece is fixed to the main body by a pin at its ring.

According to a sixth aspect of the present invention, in the metal fitting according to the first aspect, the support can be switched between an unused position where the support is overlapped along the main body and a use position where the support is raised from the main body. .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is embodied in a fitting will be described below with reference to FIGS. The same members are indicated by the same numbers.

As shown in FIG. 2, the metal fitting 1 of this embodiment
Consists of a metal body 2 extending in the longitudinal direction, a column 11, a fixed connecting piece 17, and a movable connecting piece 27. These are formed of steel and are entirely plated.

The main body 2 is composed of a square pipe,
Extends over the entire length of the main body 2 and has a rectangular cross section. At the front end of the body 2, on its upper surface 5,
A hollow cylindrical support member 7 is integrally attached to the main body 2 so as to stand upright from the upper surface 5. A cylindrical recess 8 is provided inside the support member 7, and a plate-shaped bearing member 9 having a rounded upper end is disposed in the recess 8. The bearing member 9 is integrally attached to the main body 2 so as to stand vertically from the upper surface 5 of the main body 2. In the center of the bearing member 9 is an elongated slit 1 extending vertically.
Has zero.

The strut 11 has a cylindrical strut body 12 extending in the longitudinal direction. The main body 12 and the support member 7 are formed from round pipes having the same diameter. A cylindrical recess 13 is provided inside the base end of the main body 12, and from the recess 13, a plate-like leg 14 having a width smaller than the inner diameter of the support member 7 and the main body 12 is connected to the main body 12. It protrudes in the coaxial direction. A bolt 15 is inserted into the slit 10 of the bearing member 9, and the bolt 15 penetrates the leg portion 14 and is fastened with a nut (not shown). The main body 11 is provided so that the bolt 15 can be moved up and down along the slit 10.
The strut 11 is connected to the bearing member 9 with a suitable play so that the shaft 11 can rotate about the bolt 15. A ring-shaped locking portion 16 for erection of a handrail or a rope rope 36 (FIG. 6) is provided at the tip of the column main body 12, and the locking portion 16 attaches an annular eyebolt to the column main body 12.
It is formed by screwing on a.

A fixed connecting piece 17 and a movable connecting piece 27 having the same shape and size are attached to the main body 2 of the metal fitting 1. As shown in FIG. 2 and FIG.
The movable connecting piece 27 includes inverted T-shaped plate-like plates 18 and 28 and square rings 23 and 33, respectively. The rings 23 and 33 are formed by square pipes having an inner dimension larger than the outer dimension of the square pipe of the main body 2.

As shown in FIG. 4, a notch 32 cut into a square shape corresponding to the outer dimension of the ring 33 is formed at the upper center of the narrow portion 29 of the plate 28 of the movable connecting piece 27.
Is provided, and the plate 28 and the ring 33 are connected to each other at the notch 32. As shown in FIG. 2, the fixed connecting piece 17 also has a rectangular notch 22 corresponding to the outer dimension of the ring 23 in the upper center of the narrow portion 19 of the plate 18. Plate 18 and ring 2
3 are connected.

The plates 18 and 28 include rings 23 and 33
When it is mounted on the main body 2 of the metal fitting 1 through the main body 2, it extends vertically downward from the main body 2. Plate 18, 28
Has two holes 21 and 31 provided at the same height from the bottom in the wide portions 20 and 30, respectively. The size and interval of the two holes 21 and 31 of each plate 18 and 28 are substantially the same as the size and interval of two adjacent holes 40 provided on the side surface of the wall member 39 of the H-section steel 37 shown in FIG. Set to the same.

When the metal fitting 1 is manufactured, the fixed connecting piece 17
The movable connecting piece 27 is attached to the main body 2 first. As shown in FIGS. 2 and 4, the ring 33 of the movable connecting piece 27 is provided with a hole 35 having a square cross section,
The ring 33 is connected to the support member 7 of the main body 2 through the hole 35.
Is inserted into the main body 2 from the end opposite to the end where is present.

Similarly, the ring 23 of the fixed connecting piece 17 is provided with a hole 25 having a square cross section.
The ring 23 is inserted into the main body 2 via the. Ring 23
A pin hole (not shown) is provided in the side wall 24 of the main body 2. After the movable connecting piece 27 is inserted into the main body 2, the fixed connecting piece 17 is moved by the pin 26 so as not to move back and forth.
Fixed to Since there is a hole (not shown) for stopping the pin 26 in the side wall 24 of the ring 23, as shown in FIG. 3, the mounting position of the plate 18 with respect to the ring 23 is lateral from the center of the side wall 24 (see FIG. In 3, it is shifted to the right.

Unlike the fixed connecting piece 17, the movable connecting piece 27 is not fixed to the main body 2 on the side wall 34 by a pin or the like, so that the movable connecting piece 27 moves between the support member 7 and the fixed connecting piece 17 along the main body 2. Can be done.

Next, the case where the metal fitting 1 constructed as described above is attached to the H-shaped steel 37 will be described. As shown in FIG. 2 or FIG. 3, the plurality of metal fittings 1 are carried into a construction or civil engineering work site in a state where the columns 11 are arranged in the non-use position where they are overlapped along the main body 2. As shown in FIG. 1, the H-shaped steel 37 includes a plate 38 extending in the longitudinal direction and the plate 38.
And a pair of wall members 39 connected to both side edges of the plate member 38 so as to form grooves on both upper and lower surfaces.

First, the distance between the fixed connecting piece 17 and the movable connecting piece 27 is sufficiently widened, and the plates 18 and 28 of the fixed connecting piece 17 and the movable connecting piece 27 are placed outside the pair of wall members 39 of the H-shaped steel 37. To place. The worker can use the fixed connecting piece 17
Of the H-shaped steel 37 by pressing the plate 18 by hand.
The two holes 21 of the plate 18 coincide with the two holes 40 of the wall material 39 at the same time as making contact with the outer surface of 9. A bolt is passed through the hole 21 and the hole 40 of the wall material 39 from the outside of the plate 18, and the plate 18 of the fixed connecting piece 17 is
To the wall material 39.

Next, the movable connecting piece 27 is moved along the main body 2,
The plate 28 is brought into contact with the outer surface of the wall member 39 by moving the fixed connecting piece 17 and the wall member 39 of the H-section steel 37 toward the wall member 39, and the two holes 31 of the plate 28 coincide with the two holes 40 of the wall member 39. Let it. Similarly to the fixed connecting piece 17, bolts are passed through the holes 31 and the holes 40 of the wall material 39 from outside the plate 28, and the plate 28 of the movable connecting piece 27 is fastened to the wall material 39.

In this manner, the movable connecting piece 27 is moved along the main body 2 according to the width between the pair of wall members 39 of the H-shaped steel 37, and the fixed connecting piece 17 and the movable connecting piece 27 face each other. The pair of wall members 39 of the H-shaped steel 37 can be sandwiched from outside by the surfaces of the plates 18 and 28 to be formed.

Subsequently, the column 11 of the metal fitting 1 attached to the H-shaped steel 37 is switched from the non-use position to the use position. The procedure will be described with reference to FIGS. FIG.
In (a), the strut 11 is disposed at an unused position. From this state, the column 11 is moved upward along the slit 10 while holding the column 11 substantially perpendicular to the support member 7 as shown by an arrow in FIG. At this time, the bolt 15 of the column body 12 is
(FIG. 5 (b)). Further, as shown by an arrow in FIG. 5B, the column 11 is turned about 90 degrees counterclockwise about the bolt 15. Then, as shown in FIG. 5C, the column 11 is disposed at a position where the column main body 12, the leg portion 14, and the support member 7 are aligned on the same straight line. Next, as shown by an arrow in FIG. 5C, when the column 11 is lowered, the bolt 15 moves downward along the slit 10. Then, the leg 14 and the bolt 15 enter the recess 8 of the support member 7, while the bearing member 9 is
2, and the lower end of the support 11 contacts the upper end of the support member 7 as shown in FIG.
Is placed in the use position. Since the support 11 is supported inside the support 11 by the bearing member 9 and the bolts 15 and the legs 14 enter the support member 7, the support 11 in the use position applies a lateral force. But they don't fall easily.

By repeating the above procedure, as shown in FIG. 6, a plurality of metal fittings 1 are mounted on one H-shaped steel 37 at a predetermined interval. Next, as shown in FIG. 6, a plate 41 for forming a passage is laid over the upper surface 5 of the main body 2 of the metal fitting 1. The plate material 41 is a wire (not shown)
It is fixed to the H-shaped steel 37 by the above method. When a plurality of plate members 41 are attached adjacently along the longitudinal direction of the H-shaped steel 37 so as to cover substantially the entire length of the H-shaped steel 37, the worker does not walk on the upper edge of the wall material 39 of the H-shaped steel 37. Even, the plate material 41
Can be moved safely and quickly on In addition, by inserting the main rope 36 into the locking portion 16 of each support 11 and connecting the main rope 36 to a safety belt attached to the waist of the worker, the safety when walking on the plate material 41 is ensured. Properties can be further improved.

The metal fitting 1 of this embodiment is particularly suitable for the earth retaining sheet pile 4.
It is suitable to be attached to the H-shaped steel 37 for raising the belly which is arranged along 2 (FIG. 7). The earth retaining sheet pile 42 is a corrugated fence that is erected perpendicularly to the ground in order to prevent earth and sand from falling down, and is a combination of a plurality of plate units 43 having the same shape. As shown in FIG. 1, the H-shaped steel 37 used for raising the belly is provided with a hole 40 for passing a bolt through a side surface of a wall member 39 of the H-shaped steel 37 in advance. Fitting 1 is H-shaped steel 37
Can be firmly attached to

As shown in FIG. 7, the H-shaped steel 37 is arranged such that its wall material 39 is arranged substantially parallel to the earth retaining sheet pile 42. The earth retaining sheet pile 42 has an adjacent portion 44 adjacent to the wall material 39 of the H-section steel 37 and a separation portion 45 separated from the wall material 39. Since the gap 46 exists between the separation portion 45 and the wall member 39, the metal fitting 1 is connected to the H-shaped steel 3 adjacent to the separation portion 45.
When it is attached to the wall material 39 of FIG. 7, the attachment is easy, and the metal fittings 1 can be arranged at regular intervals.

Therefore, the metal fitting 1 of the present embodiment has the following effects. -Since a passage can be provided at the upper part of one H-shaped steel 37, it does not take up space and does not hinder assembly work.
Further, the worker can safely and quickly walk on the plate member 41 without walking on the upper edge of the H-shaped steel 37. -Since the metal fitting 1 can be manufactured using a general round pipe, a square pipe, a steel plate, or the like, the manufacturing is easy. -Since hollow square pipes and round pipes are used for the main body 2 and the support main body 12, it is lightweight, and the metal fittings 1 can be carried, and the metal fittings 1 can be attached to and detached from the H-shaped steel 37 by one person. -Since the square pipe is used for the main body 2, the plate material 41 placed thereon is stabilized. -Since the metal fitting body 2, the support 11, the fixed connecting piece 17, and the movable connecting piece 27 are integrally assembled, these members do not separate during the operation, which is convenient for handling. -Since the column 11 can be switched between the use position and the non-use position, the metal fitting 1 can be stored without taking up space. -Since the main rope 36 can be erected between the plurality of columns 11, the safety when walking on the plate member 41 is further ensured. The ring 33 of the movable connection piece 27 is movably inserted into the main body 2, and the distance between the fixed connection piece 17 and the movable connection piece 27 can be adjusted according to the width of the pair of wall members 39 of the H-shaped steel 37. Therefore, it is possible to cope with H-shaped steel 37 of various sizes. The plate 18 of the fixed connecting piece 17 and the movable connecting piece 27,
28 are provided with holes 21 and 31 so that the H-shaped steel 37
The metal fitting 1 can be easily and firmly attached to the H-shaped steel 37 by aligning the position with the hole 40 and tightening it with a bolt and a nut. -Since the fixed connecting piece 17 and the movable connecting piece 27 have the same shape, manufacturing is easy.

Next, a second embodiment of the metal fitting 1 will be described with reference to FIGS. 8 and 9 (a) and 9 (b). The metal fitting 1 of the present embodiment includes a metal body 2, a support 11, a fixed connecting piece 17, and a movable connecting piece 27 that extend in the longitudinal direction, similarly to the metal fitting 1 of the first embodiment.

In this embodiment, a recess 8 is provided inside a cylindrical support member 7 formed of a round pipe. On the side surface of the support member 7, two elongated slits 48 facing each other and extending in the vertical direction are provided. Both ends of the slit 48 are closed to prevent the bolt 15 moving along the slit 48 from coming off the support member 7. The support member 7 has an elongated slit 47 extending downward from the upper end of the support member 7 at a position approximately 90 degrees apart from the two slits 48.
Is formed.

The support 11 has a cylindrical support main body 12 extending in the longitudinal direction, and the main body 12 is formed of a round pipe smaller in diameter than the support member 7. A plate-like leg 14 protrudes from the base end of the column main body 12 in the coaxial direction with the main body 12. The leg 14 has a slit 49 at the center thereof extending in the longitudinal direction of the leg 14. The two slits 48 of the support member 7 and the slit 49 of the leg 14
5 is inserted. Bolt 15 is attached to nut (not shown)
Therefore, it is fastened and can move up and down along the slit 48.

At the tip of the support body 12, two L-shaped engaging portions 16 are provided so as to face each other. The locking portion 16 is attached to the tip of the column main body 12, and extends in parallel with the longitudinal axis of the column main body 12.
And the second part 1 bent at a substantially right angle from the first part 16a
6b. The two planes formed by the first portion 16a and the second portion 16b of the two locking portions 16 extend parallel to each other and are located on both sides of the axis of the column 11. Therefore, a fixed interval G is formed between the two first portions 16a.

The metal fitting 1 of the present embodiment, like the metal fitting 1 of the first embodiment, is shown by a solid line in FIG.
Can be moved between the non-use position shown in FIG. 9 and the use position shown in FIG. 9B. As shown in FIG. 9A, when the column 11 is in the unused position, the leg 14 enters the slit 47 and is supported at the lower end of the slit 47. From this state, when the support 11 is rotated clockwise approximately 90 degrees around the bolt 15 in substantially the same procedure as in FIGS. 5A to 5D, the leg 14 comes out of the slit 47, It enters the recess 8 of the support member 7. Hardware body 2
The upper wall is provided with a hole 51 below the support member 7 so that the leg 14 can enter the metal fitting body 2. Accordingly, when the support 11 is moved downward in the support member 7 toward the fitting main body 2 after the rotation of the support 11, the leg 14 enters the fitting main body 2 through the hole 51, and the leg 14 Is in contact with the upper surface of the bottom wall of the fitting body 2.
During the movement of the column 11, the bolt 15 moves downward along the slit 48. Further, since the diameter of the support main body 12 is smaller than the diameter of the support member 7, the base end of the support 11 is accommodated in the recess 8 of the support member 7 at the use position shown in FIG. Therefore, since the tip of the leg 14 abuts on the metal fitting body 2 and the base end of the support 11 is accommodated in the recess 8, the support 11 is stably retained. At this time, since the support 11 is also supported from the side by the support member 7, even if a force is applied to the support 11 in the use position in the lateral direction, the support 11 does not easily fall down.

The plurality of metal fittings 1 of the second embodiment are
When attaching to the shape steel 37 and bridging the master rope 36 between the metal fittings 1, the second portions 16b of the two locking portions 16
The main rope 36 is passed through the locking portion 16 by passing the main rope 36 through the gap G sandwiched between the two. That is, in the locking portion 16 of the fitting 1 of the first embodiment, the end of the parent rope 36 must be passed through the annular eyebolt, whereas in the locking portion 16 of the fitting 1 of the second embodiment, Any intermediate portion of the main rope 36 can be attached to the locking portion 16.

Therefore, the metal fitting 1 of the present embodiment has the following effects. -Since the support | pillar 11 is also supported from the side by the support member 7, the support | pillar 11 in a use position does not fall easily. -Since an arbitrary intermediate portion of the main rope 36 can be attached to the locking portion 16, the main rope 36 can be easily bridged over the plurality of metal fittings 1.

The fitting of the present embodiment can be modified as follows. The main body 2 and the rings 23 and 33 of the metal fitting 1 may be formed by a round pipe, or the support 11 and the support member 7 may be formed by a square pipe. In addition, the main body 2, the support main body 12, and the support member 7
May not be a hollow member. -The metal fitting 1 may be formed from aluminum other than steel, other metals, or plastic. -Plating and a rust inhibitor may be applied to the surface of the metal fitting 1.
By doing so, the appearance can be improved and deterioration can be prevented. The surface of the metal fitting 1 may be covered with vinyl such as red, orange, yellow, yellow and black zebra patterns, or the surface of the metal fitting 1 may be painted with paint or spray of these colors. By doing so, the worker can be alerted. -Instead of making the locking part 16 annular or L-shaped, it may be formed in a hook shape. The position at which the locking portion 16 is provided is, in addition to the upper end of the main body 12,
The side surface of the main body 12 may be used. -Instead of installing the main rope 36, a metal handrail may be installed along the H-shaped steel 37 on the upper ends of the columns 11 of the plurality of brackets 1. -The fixed connection piece 17 and the movable connection piece 27 may be formed in different shapes. -The fixed connection piece 17 may be fixed to the main body 2 of the fitting 1 by an adhesive or welding. The movable connecting piece 27 may be configured to be detachable from the main body 2. The plates 18 and 28 may have any shape other than the inverted T shape. In the above-described embodiment, the support 11 is switched from the non-use position to the use position after the fitting 1 is attached to the H-shaped steel 37, but after the support 11 is switched from the non-use position to the use position, the support 1 is switched. May be attached to the H-shaped steel 37. Further, after the plurality of metal fittings 1 are attached to the H-shaped steel 37, all the columns 11 may be collectively switched from the non-use position to the use position. In the above embodiment, the column 11 is formed so as to be switchable from the non-use position to the use position. However, the column 11 may be fixed to the main body 2 of the fitting 1 by welding or the like.

Next, technical ideas other than those described in the claims, which can be understood from the above embodiments, will be described below together with their effects. (A) In the metal fitting according to claim 1, the fixed connecting piece 17 and the movable connecting piece 27 have a plurality of holes having the same arrangement interval as the plurality of holes 40 provided in the wall member 39 of the H-shaped steel 37. A metal fitting provided with 21 and 31. With such a configuration, the fixed connecting piece 17 and the movable connecting piece 27 can be easily fixed to the wall member 39 of the H-shaped steel 37 with bolts.

[0038]

According to the first aspect of the present invention, the metal fittings can be attached to H-shaped steels of various sizes. In addition, since the strut is provided, the rope can be attached to the strut to ensure the safety of the worker when walking.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in (1), the movable connecting piece can be prevented from detaching from the main body of the fitting. According to the third aspect of the invention, in addition to the effects of the first aspect of the invention,
The metal fitting can be attached to the H-shaped steel for raising the belly.

According to the invention described in claim 4, according to claim 1 of the present invention,
In addition to the effects of the invention described in (1), the metal fitting is lightweight and easy to handle, and at the same time, the plate material to be bridged over the metal fitting can be stably supported.

According to the invention set forth in claim 5, according to claim 1,
In addition to the effects of the invention described in (1), the fixed connecting piece and the movable connecting piece can be formed from substantially the same component. Claim 6
According to the invention described in (1), in addition to the effect of the invention described in (1), when the fitting is not used, the support can be folded and the fitting can be stored compactly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a metal fitting according to a first embodiment of the present invention is attached to an H-shaped steel.

FIG. 2 is a perspective view showing a fitting in which a support is arranged at an unused position.

FIG. 3 is a front view of the metal fitting of FIG. 2;

FIG. 4 is a partially enlarged side view showing a movable connection piece.

5 (a), (b), (c) and (d) are partially enlarged front views showing a procedure for moving a support from an unused position to a used position.

FIG. 6 is a perspective view showing a state in which a plurality of metal fittings are attached to an H-shaped steel, and a passage is formed by arranging a plate material on a main body of the metal fitting.

FIG. 7 is a plan view showing a positional relationship between an H-shaped steel disposed along the earth retaining sheet pile and a bracket attached to the H-shaped steel.

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

9A and 9B are partially enlarged front sectional views showing the metal fitting of FIG. 8 in an unused position and a used position.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Metal fitting, 2 ... Main body, 11 ... Prop, 17 ... Fixed connecting piece,
18 ... plate, 23 ... ring, 26 ... pin, 27 ... movable connecting piece, 28 ... plate, 33 ... ring, 37 ... H-shaped steel, 38 ... plate, 39 ... wall, 41 ... plate, 42 ... earth retaining sheet pile.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-246660 (JP, A) JP-A-8-13779 (JP, A) Japanese Utility Model Application No. 64-23542 (JP, U) Japanese Utility Model Application Model No. 51- 149917 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 17/04 E02D 5/00 E04G 5/00 E21D 7/00

Claims (6)

(57) [Claims] 1. An H-shaped steel having a longitudinally extending plate and a pair of wall members connected to both side edges of the plate so as to form grooves on both sides of the plate. A metal fitting used for erecting a passage above a groove, comprising: a rod-shaped main body; a fixed connecting piece fixed to the main body, for fixing the main body to one wall member of H-section steel; A movable connecting piece mounted movably along the main body so as to adjust a gap between the main body and the connecting piece, and a movable connecting piece for fixing the main body to the other wall member of the H-shaped steel; Metal fittings with 2. The metal fitting according to claim 1, wherein the support is mounted on the main body on the opposite side of the fixed connection piece, and the movable connection piece is movable between the fixed connection piece and the support. 3. The metal fitting according to claim 1, wherein the H-shaped steel is used for raising the belly placed along the earth retaining sheet pile. 4. The metal fitting according to claim 1, wherein the main body is formed of a square pipe. 5. The fixed connection piece and the movable connection piece each include a ring inserted into the body, and a plate extending in one direction from the ring, wherein the fixed connection piece is fixed to the body by a pin at the ring. Claim 1
Metal fittings described in. 6. The metal fitting according to claim 1, wherein the column is switchable between a non-use position where the support is overlapped along the main body and a use position where the post is raised from the main body.