JP6186194B2 - Metal tube support - Google Patents

Description

  The present invention is a metal pipe column that is installed in a road, a street, a park, a parking lot, etc., and is used for an illumination pole (illumination pillar), an electric signpost pole (lightning signpost), a traffic signal pole, etc. It belongs to the technical field.

Many of the conventional metal tube columns (for example, lighting columns) are provided with an opening for installing and inspecting a joint box on the lower side wall (Patent Document 1, Patent Document 2, and Patent Document). 3 (see FIGS. 13 and 14).
The joint box is provided between the illuminating lamp and the distribution line, and accommodates a breaker, a terminal block, and the like, and is installed on a mounting plate fixed to the inner side wall at the lower part of the metal pipe column (Patent Document 4). , See Patent Document 5).
The opening is effectively used for various operations such as a cable connection operation and a periodic inspection operation as well as the mounting plate fixing operation and the joint box installation operation.

JP 2004-92254 A JP 2008-19708 A JP 2008-41360 A JP-A-10-14056 JP 2011-38311 A

Conventional metal tube struts are commonly implemented with a configuration in which the joint box is installed on a mounting plate fixed to the inner wall of the metal tube strut through the opening.
Therefore, it is necessary for an operator to perform various operations such as the above-described fixing work of the mounting plate, installation work of the joint box, cable connection work, or periodic inspection work through the opening of the metal pipe column. The environment was not good.
In other words, the worker must perform all of the various operations through the opening of the metal tube support column, so that the range of movement of the operator's fingers is limited, the field of view is narrow and the work is complicated. Therefore, there is room for improvement in terms of work efficiency and reliability (certainty). There was also a problem that parts and tools were likely to fall to the bottom of the metal pipe column.
The above problems cannot be ignored since the diameter of the metal tube strut has been reduced in recent years and the area of the opening (especially the width) is inevitably becoming smaller.

  The present invention has been devised in view of the above-described problems of the background art, and the object of the present invention is to provide the above-mentioned various operations, which are free and free from the restriction of the range of movement of fingers. An object of the present invention is to provide a metal tube strut that can be performed in a work environment and can dramatically improve the efficiency and reliability of work.

As a means for solving the above-mentioned problems, the metal tube support column described in claim 1 is provided with a working opening and a cover that can be opened and closed to close the opening, and a cable is connected to the inside. A metal tube strut to which electrical equipment such as a joint box is attached,
The lid is hinged to the column main body below the opening so as to be pivotable up and down, and the joint box is attached to the inner surface of the lid via a raising member provided in the full length direction of the lid. It is characterized by.

  According to a second aspect of the present invention, in the metal pipe column according to the first aspect, a reinforcing frame member is provided on a column main body around the opening, and the lid body is vertically moved to the reinforcing frame member below the opening. It is hinged so that it can rotate freely.

  According to a third aspect of the present invention, in the metal tube support column according to the first or second aspect, the lid is configured to maintain a substantially horizontal posture in a state in which the opening is opened. Features.

According to a fourth aspect of the present invention, in the metal pipe column according to any one of the first to third aspects, the lower end portion of the cable hanging from above in the metal tube column is a semicircle from the lower side of the joint box. It is folded back in an arc shape and rises on the lateral side of the raising member, and further folded back in a semicircular arc shape and connected to a connector provided at the upper part of the joint box.

According to a fifth aspect of the present invention, in the metal tube support column according to any one of the first to fourth aspects, the raising member has a slide hole formed in a full length direction of the lid body, and the joint box Is characterized in that it is configured to be slidable in the full length direction of the lid through a shaft portion that is passed through the slide hole in a retaining state.

According to the metal pipe column according to the present invention, the joint box can be implemented with a configuration in which the joint box is attached not to the column main body side as in the prior art but to the openable / closable lid side. Various kinds of work such as work or periodic inspection work can be performed in an open and favorable working environment in which workers outside the metal pipe column are not restricted by the operating range of fingers. Therefore, work efficiency and reliability can be dramatically improved.
Since the lid is hinge-connected to the column main body (reinforcing frame member) below the opening so as to be pivotable up and down, the lid can be opened and closed smoothly. Further, since the lid is configured to maintain a substantially horizontal posture in a state in which the opening is opened, it can be used as a work table, further improving the efficiency and reliability of the various operations. Can do.
In addition, since the various operations described above can be performed mainly outside the metal tube strut, it is possible to reduce the possibility of parts and tools falling to the bottom of the metal tube strut.

It is the elevation which showed the whole structure of the metal pipe support | pillar concerning this invention. It is the perspective view which showed the principal part of the metal pipe support | pillar concerning Example 1. FIG. A is the side view which showed the principal part of the metal pipe support | pillar concerning Example 1, B is the same front view, C is a top view of A. FIG. It is a perspective view which shows the state which open | released the opening part of the metal pipe support | pillar concerning Example 1, and hold | maintained the cover body in the horizontal attitude | position. A is a side view showing the state of FIG. 4, B is a front view of the same, and C is a plan view of A. FIG. It is the perspective view which showed the principal part of the metal pipe support | pillar concerning Example 2. FIG. It is a perspective view which shows the state which open | released the opening part of the metal pipe support | pillar concerning Example 2, and hold | maintained the cover body in the horizontal attitude | position. It is a perspective view which shows the state which made the joint box concerning FIG. 7 slide. It is the perspective view which showed the principal part of the metal pipe support | pillar concerning Example 3. FIG. It is a perspective view which shows the state which open | released the opening part of the metal pipe support | pillar concerning Example 3, and hold | maintained the cover body in the horizontal attitude | position. A is a side view showing the state of FIG. 10, B is a front view thereof, and C is a plan view of A. FIG.

  Next, an embodiment of a metal tube support according to the present invention will be described with reference to the drawings.

FIG. 1 shows an overall configuration of a metal tube strut 10 according to the present invention, and FIGS. 2 to 5 show a pivotal portion of the metal tube strut 10.
This metal pipe support 10 is provided with a working opening 1 and a lid 2 that can be opened and closed to close the opening 1 in a lower side wall portion, and a joint box 3 etc. to which a cable 11 is connected. The lid body 2 is connected to the main body of the column 10 below the opening 1 by a hinge 4 so as to be rotatable up and down, and the joint box 3 is attached to the inner surface of the lid body 2. ing.
Incidentally, reference numeral 6 in the figure denotes a reinforcing frame member to be described later.
In addition, the stabilizer provided in the top part of the said metal pipe support | pillar 10 or the upper-lower vicinity position of the joint box 3, etc. is abbreviate | omitted for convenience of illustration.

The metal pipe column 10 according to the illustrated example is a base plate 18 type, and is implemented as an illumination pole (illumination column) having a ground height of about 10 m. Further, the lower end diameter (ground diameter) is about 165 mm, the upper end diameter (tip diameter) is about 60 mm, and an appropriate taper is formed in the axial direction. However, the part (lower part) forming the opening 1 is a straight pipe in consideration of the ease of forming the opening 1 and the lid 2.
Of course, the form of the metal pipe column 10 is not limited to this, and can be carried out by a rooting type, or can be carried out by bending the upper end portion into an arm shape. It can also be implemented as an electric signpost or a traffic signal pole. The standard specifications are often about 6 to 12 m above the ground, about 120 to 210 mm on the ground, and about 60 to 90 mm on the tip.

  The metal pipe column 10 according to the present invention is characterized in that the joint box 3 is implemented with a configuration in which the joint box 3 is attached not to the column 10 body side as in the prior art but to the lid 2 side. Therefore, hereinafter, the structure around the opening 1 and the lid 2 of the metal tube support 10 will be mainly described.

The opening 1 is provided only at one location on the side wall below the metal tube support 10.
The shape of the opening 1 is an oblong shape that is long in the vertical direction when viewed from the front direction (about 400 mm in major axis and about 100 mm in minor axis), but is not limited to the illustrated example, and is a structure in which stress concentration hardly occurs. The design is appropriately changed according to the design, the cross-sectional shape of the metal tube support column 10 and the like.
In addition, although the installation position of the said opening part 1 follows the standard specification, the center point (intersection of a long axis and a short axis) is set to 750 mm above-ground height, However, It is not limited to this.

Around the opening 1, a reinforcing frame 6 (thickness of about 5 mm) is provided for avoiding stress concentration and increasing the strength of the entire metal tube strut 10. The reinforcing frame member 6 is a racetrack-like oval that is slightly larger than the opening 1 when viewed from the front direction, and is formed in a curved shape along the outer peripheral surface of the metal tube strut 10 when viewed from the plane direction. It is welded and joined to the outer peripheral surface of the support column 10 so as to be concentric with the opening 1.
Of course, the form of the reinforcing frame member 6 is not limited to the illustrated example, and the design can be changed as appropriate according to the structural design such as the shape of the opening 1, the cross-sectional shape of the metal tube strut 10, and the stress concentration on the local part. Further, depending on the structural design, the reinforcing frame member 6 may not be used.

As shown in FIG. 3 and the like, the lid 2 has an oval shape that fits in the inner edge of the reinforcing frame member 6 when viewed from the front when in the closed state in which the opening 1 is closed. The reinforcing frame member 6 is formed so as to be substantially flush with the reinforcing frame member 6 as viewed from above.
The lid 2 is connected at its lower end to a main body 10 below the opening 1 by a hinge 4 so as to be rotatable up and down. In the present embodiment, the hinge 4 is a two-blade structure type hinge 4 and the two-blade portion is positioned so as to straddle the lower end portion of the lid body 2 and the reinforcing frame member 6 evenly. It is carried out by joining the lower end portion of the lid 2 and the reinforcing frame member 6 with a joining means such as a screw 8 through the filler 7.
Thus, the lid body 2 is connected to the reinforcing frame member 6 and thus the main body of the support column 10 with a configuration that can be rotated up and down around the shaft pin of the hinge 4.
Of course, the form of the lid 2 is not limited to the illustrated example, and the design can be changed as appropriate according to the form of the opening 1 or the reinforcing frame 6.

In addition, the lid 2 is provided with a drawer rotation operation type lock handle device 9 in the upper center portion thereof. Since the mechanism itself of the lock handle device 9 is a known technique, a detailed description thereof is omitted. In short, however, a thin plate-like hanging plate 9b provided in front of the handle 9a rotates in conjunction with the rotation operation of the handle 9a. It is supposed to be configured. Specifically, when the handle 9a is in a vertical posture, the hanging plate 9b is in a horizontal state, and when the handle 9a is rotated 90 degrees to be in a horizontal posture, the hanging plate 9b is also rotated 90 degrees to be in a vertical state. It is configured.
The length of the thin plate-like hanging plate 9b is set to be longer than the width of the opening 1, and both ends thereof are curved to have a curvature that substantially matches the curvature of the inner wall surface of the metal tube column 10 ( (See FIGS. 3B and C). The hanging plate 9b is arranged so as not to interfere with the opening 1 in the vertical state.
That is, when the lid 2 rotates the handle 9a pulled out from the lock handle device 9 (the fixed case thereof) by 90 degrees, the hanging plate 9b rotates from the horizontal (locked) state to the vertical (released) state, By pulling the handle 9a forward, the opening 1 is brought into an open state. Further, when the lid body 2 is turned upward (standing) from the opened state and the handle 9a is turned 90 degrees in the reverse direction, the hanging plate 9b is turned from the vertical state to the horizontal state, The bending portion is hooked on the inner side surface of the metal tube support column 10 and is locked.
In addition, the locking means of the lid 2 is not limited to this, and can be appropriately changed in design, such as being adopted from a known technique (for example, see the mounting structure of the upper half portion of FIG. 3 according to Patent Document 5 above) ).

Further, when the joint box 3 is attached to the inner side surface of the lid body 2, a raising member 5 is interposed.
The raising member 5 plays a role of attaching the joint box 3 to the inner surface of the lid body 2 which is curved in an arc shape in a stable state, and also efficiently routes the cable 11 (bending of the cable 11 as described later). It also plays a role in ensuring the radius efficiently). Further, it also serves as a mating member (attached material) of the locking plate 12 used to hold the lid 2 in a substantially horizontal posture.
The raising member 5 according to the illustrated example includes, as an example, a horizontally long L-shaped thin steel plate 5a (width 25 mm, length 230 mm, height 40 mm, thickness 4.5 mm) with one end bent at a right angle, The support plate 5b (width 25mm, height 40mm, thickness 4.5mm) that supports the other end of the steel plate 5a is welded and integrated in a substantially gate shape. The width direction of the support plate 5b to the direction along the length direction of the lid 2, the lower end, in order to avoid having to work along a curved shape of the lid 2.
In addition, the form of the raising member 5 is not limited to the illustrated example, and is appropriately designed on the condition that the joint box 3 can be raised to a required height in a stable state, and the width dimension is suppressed in consideration of cable wiring. It can be changed (for example, see the raising members 15 and 25 according to the second and third embodiments).
Thus, the raising member 5 is positioned so as not to interfere with the lock handle device 9 along the entire length (center axis) direction of the lid body 2, and the lower end of the raising member 5 (thin steel plate 5a, support plate 5b). The part (leg part) is welded and fixed to the inner surface of the lid 2. In addition, the lower end part of this thin steel plate 5a is processed in advance along the curved shape of the lid 2.

On the upper surface of the raising member 5, the joint box 3 placed in a well-balanced manner is fixed by a fixture such as a bolt 16 passed through the raising member 5. The joint box 3 according to the present embodiment uses a type in which two connectors 14 are arranged in parallel at the top and bottom, and two screw holes for screwing the fixture are spaced apart in the axial direction on the back side. It has been drilled.
On the other hand, the lower end portion of the cable 11 hanging from above in the metal tube column 10 is folded back into a semicircular arc shape from below the joint box 3 fixed to the raising member 5 as shown in FIG. The side of the member 5 rises and is further folded back into a semicircular arc shape and connected to a connector 14 provided on the upper portion of the joint box 3. The connector 14 provided at the lower part of the joint box 3 is connected to the upper end portion of the cable 11 rising from the lower side in the metal pipe column 10.
Incidentally, reference numeral 17 in the drawing denotes a guide pipe (guide ring) that is attached to the inner side surface of the lid 2 and appropriately arranges the cable 11 without slack.

Moreover, as shown in FIG. 2 etc., the said raising member 5 has the thin-plate-shaped latching plate 12 suspended from the lower end part. A thin steel plate (width 25 mm, length 225 mm, thickness 4.5 mm) is used for the locking plate 12, and the upper end portion thereof is welded and joined to the leg portion of the L-shaped thin steel plate 5 a constituting the raising member 5. ing.
On the other hand, a stopper 13 is welded and joined in a horizontal posture to the inner wall surface of the metal pipe column 10 opposite to the opening 1. At the same time that the lid 2 is detached from the opening 1 and pivots downward (decays), the lower end of the locking plate 12 suspended from the raising member 5 rises to draw an arcuate track. The stopper 13 is attached to a position where the locking plate 12 and thus the lid body 2 are in a substantially horizontal posture when a groove formed in the lower end portion of the locking plate 12 is fitted.

Next, an example of construction of the metal pipe column 10 having the above-described configuration will be described.
First, the metal pipe column 10 having the opening 10 formed in a predetermined portion (described above) of the side wall and having the reinforcing frame member 6 attached thereto is erected on a base plate 18 installed on the ground. .
Subsequently, the stopper 13 is positioned substantially horizontally at a predetermined portion (described above), and both ends thereof are welded and fixed to the inner side surface of the metal pipe column 10.
On the other hand, the joint box 3 aligns the screw hole provided on the back surface side thereof with the hole provided on the upper surface (contact surface) of the raising member 5 and screws a fixing tool such as a bolt 16 into the joint box 3. To fix the raised member 5. At this stage, the locking plate 12 has already been welded to the raising member 5. The raising member 5 having such a configuration is welded to a predetermined position (described above) on the inner surface of the lid 2.
Subsequently, the lid 2 is arranged so as to close the opening 1 and fit in the inner edge of the reinforcing frame member 6, and the hinge (two-blade structure type hinge) 4 is attached. This attachment work is performed by positioning the two blade portions of the hinge 4 so as to almost evenly straddle the lower end portion of the lid body 2 and the reinforcing frame member 6, and using the joining means such as screws 8 via the filler 7. It joins to the lower end part of the cover body 2, and the reinforcement frame material 6.

Thus, the lid body 2 on which the joint box 3 is mounted via the raising member 5 is configured to be rotatable up and down around the shaft pin of the hinge 4.
Specifically, when the handle 9a pulled out from the lock handle device 9 is rotated 90 degrees by manual operation of the worker, the hanging plate 9b is rotated from the horizontal (locked) state to the vertical (released) state. By pulling the handle 9a toward the front, the lid 2 is opened with respect to the opening 1. More specifically, the lid 2 is held in a substantially horizontal position by the locking plate 12 provided on the raising member 5 being locked to the stopper 13.
Further, when the lid body 2 is turned upward (standing) from the opened state and the handle 9a is turned 90 degrees in the reverse direction, the hanging plate 9b is turned from the vertical state to the horizontal state, The bending portion is hooked on the inner side surface of the metal tube support column 10 and is locked.

Subsequently, an operation of connecting the cable 11 to the upper and lower connectors 14 on one side of the joint box 3 is performed, thereby completing the construction of the metal pipe column 10.
In the present embodiment, as described above, the cable 11 hanging from above in the metal tube column 10 is wired so as to surround the joint box 3 in the vertical direction (for details, refer to the paragraph [0023] above). (See lines 5-10).
The significance of devising the wiring of the cable 11 is nothing other than considering damage to the cable 11 and performance degradation. In other words, in this embodiment, the raised member 5 is interposed between the lid 2 and the joint box 3 to form a gap through which the cable 11 passes on the back surface (downward) side of the joint box 3. The bend radius was efficiently secured.

When such a wiring method is not used, for example, when the cable 11 hanging from above and the connector 14 on the upper portion of the joint box 3 are simply connected, the metal tube strut 10 moves within the movement range of the joint box 3. It is necessary to store the extra length of the cable 11 in consideration of the above. As a result, the cable 11 in the extra length portion is bulky (doweled) above the joint box 3, so that the bending radius of the cable 11 cannot be secured and may not be stored. Even if it can be stored forcibly, it may exceed the allowable range of the bending radius of the cable 11 and may cause damage or performance degradation. However, this problem can be solved by increasing the ground diameter of the metal tube support column 10, but it is not economical.
In consideration of the above problems and the current situation in which the diameter of the metal pipe support 10 is decreasing, in this embodiment, the rational wiring of the cable 11 as described above was realized.

  In the illustrated example, the cable 11 is connected only to the upper and lower connectors 14 on one side of the joint box 3. However, the present invention is of course not limited to this, and when an automatic flashing device is provided, the cables 11 are arranged side by side. It is also possible to connect the cables 11 to the connectors 14 respectively. In this case, it goes without saying that the two cables 11 hanging from above are wired so as to surround the joint box 3 in the vertical direction as described above (in detail, lines 5 to 10 in the paragraph [0023] above). See eye). Examples 2 and 3 described below have the same technical idea.

Therefore, according to the metal pipe column 10 described above, the joint box 3 can be implemented with a configuration in which the joint box 3 is attached not to the column 10 main body side as in the prior art but to the lid 2 side that can be opened and closed. Play.
Various operations such as installation work of the joint box 3, connection work of the cable 11 or periodic inspection work are performed so that the workers outside the metal pipe column 10 are not restricted by the operating range of fingers. Can be done in a working environment. Therefore, work efficiency and reliability can be dramatically improved.
Since the lid 2 is connected to the main body 10 (reinforcing frame member 6) below the opening 1 by the hinge 4 so as to be rotatable up and down, the lid 2 can be opened and closed smoothly. Further, since the lid 2 is configured to maintain a substantially horizontal posture in a state in which the opening 1 is opened, it can be used as a work table, further improving the efficiency and reliability of the various operations. Can be increased.
In addition, since the lid 2 also serves as a mounting plate for the joint box 3, the mounting plate is useless. Therefore, the mounting work of the mounting plate which has been conventionally performed through the opening 1 is unnecessary and economical.

6 to 8 show different embodiments of the metal tube strut according to the present invention.
The metal pipe column 20 according to the second embodiment is different from the first embodiment only in the configuration of the raising member 15. The other constituent members are the same as those in the first embodiment, so the same reference numerals are given and the description thereof is omitted.

In short, the metal pipe support 20 according to the second embodiment is implemented with a slide structure in which the configuration of the raising member 15 that supports the joint box 3 is devised.
That is, the raising member 15 includes, as an example, a horizontally long L-shaped thin steel plate 15a (width 35 mm, length 230 mm, height 40 mm, thickness 4.5 mm) with one end bent at a right angle, and the thin steel plate. The support plate 15b (width 35mm, height 40mm, thickness 4.5mm) that supports the other end of 5a is welded and integrated in a substantially portal shape.
The raising member 15 has a slide hole 19 formed along the length direction (the full length direction of the lid 2), and a shaft portion (two heads in the illustrated example) that passes through the slide hole 19 from below. The front end of the attachment bolt 21 is screwed into a screw hole provided on the back side of the joint box 3 to such an extent that the slippage of the joint box 3 is not hindered.
The length of the slide hole 19 and the arrangement and interval of the two head bolts 21 are appropriately changed in accordance with the structural design such as an appropriate slide length of the joint box 3.
Thus, the joint box 3 is configured to be slidable in the full length direction of the lid body 2 through the two bolts 21 with heads passed through the slide holes 19 in a state of being prevented from coming off.

  Therefore, according to the metal tube strut 20 according to the second embodiment, in addition to the function and effect achieved by the first embodiment (see paragraph [0030] above), the joint box 3 is further away from the metal tube strut 20. Since the positioning can be performed (refer to FIG. 4 and FIG. 8 in comparison), various operations such as connection work of the cable 11 and periodic inspection work can be performed in a more open and favorable working environment.

9 to 11 show different embodiments of the metal tube strut according to the present invention.
Compared with the first and second embodiments, the metal tube support column 30 according to the third embodiment is mainly different in a means for holding the lid 2 in a horizontal posture in a state where the opening 1 is opened. The other constituent members are the same as those in the first and second embodiments, so the same reference numerals are given and the description thereof is omitted. Although the cable 11 is omitted for the sake of illustration, it is implemented with the same wiring as in the first and second embodiments.

In short, the metal tube support 30 according to the third embodiment is implemented by suspending and supporting the lid 2 in a horizontal posture with a suspension material (two stainless wires in the illustrated example) 24. Both ends of the suspension member 24 are hung on attachment plates 22 and 23 provided on the lid 2 side and the support 30 main body side, respectively.
The lid 2 side mounting plate 22 (width 100 mm, length 30 mm, thickness 3.2 mm) is fixed by welding both ends thereof to a curved portion (curved wall) at the upper end of the lid 2. ing. Two through-holes for hanging the suspension member 24 are provided at positions inward of the both end portions.
On the other hand, the mounting plate 23 on the main body side of the support column 30 is formed by protruding bent metal fittings 23b that form eyes on the front surfaces of both ends of the base plate 23a (width 110 mm, length 50 mm, thickness 3.2 mm). It is welded and fixed to the upper position of the inner wall surface on the side opposite to the part 1.
Thus, the suspension member 24 having one end hooked to the bent metal fittings 23a, 23a of the mounting plate 23 is hooked to the corresponding through hole of the mounting plate 22 so that the lid body 2 is balanced. It can be suspended and supported in a horizontal position. Although the suspension member 24 according to the present embodiment is implemented with a diameter of 2 mm and a length of 580 mm, the design is appropriately changed on the condition that the lid body 2 is suspended and supported in a balanced horizontal position.

Since the metal pipe support 30 according to the third embodiment is a means for holding the lid 2 in a horizontal posture with the suspension member 24, the locking plate 12 and the stopper 13 according to the first and second embodiments are not necessary. .
Further, since the lock handle device 9 is provided with the mounting plate 22 at the upper end portion of the lid body 2, the lock handle device 9 is provided at a position shifted downward from the lock handle device 9 according to the first and second embodiments.
The raising member 25 has a gate shape that is long in the horizontal direction with both ends bent at right angles (width 40 mm, length 310 mm, height 40 mm, thickness 3.2 mm), and is installed so as to cover the lock handle device 9. In the illustrated example, as in the second embodiment, the joint box 3 can be slid in the full length direction of the lid body 2 via two headed bolts 27 that pass through the slide hole 26 in a state of being prevented from coming off. Although the configuration is implemented, it can of course be implemented by a fixed type as in the first embodiment.

  Therefore, according to the metal tube support column 30 according to the third embodiment, the same operational effects as those of the second embodiment can be obtained (see paragraph [0033] above).

  Although the embodiments have been described with reference to the drawings, the present invention is not limited to the illustrated examples and includes a range of design changes and application variations that are usually made by those skilled in the art without departing from the technical idea thereof. I will mention that just in case.

1 opening 2 lid 3 join oxalatoborate box 4 hinge 5 raising member 5a L-shaped metal sheet 5b supporting plate 6 the reinforcing frame member 7 filler 8 Screw 9 lock handle device 9a handle 9b KakeTomeban 10,20,30 metal pipe posts 11 Cable 12 Locking plate 13 Stopper 14 Connector 15 Raising member 15a L-shaped thin steel plate 15b Support plate 16 Bolt 17 Guide pipe 18 Base plate 19 Slide hole 21 Shaft (head bolt)
22 Mounting plate 23 Mounting plate 23 Base plate 23b Bending bracket 24 Suspension material (stainless steel wire)
25 Lifting member 26 Slide hole 27 Bolt with head

Claims (5)

A metal tube support provided with an electrical device such as a joint box having a working opening and an openable / closable lid that closes the opening provided on a side wall, and having a cable connected therein, The body is hinged to the column main body below the opening so as to be rotatable up and down, and the joint box is attached to the inner side surface of the lid body via a raising member provided in the full length direction of the lid body. A metal tube strut characterized by that.   The reinforcing frame member is provided on a column body around the opening, and the lid is hinged to the reinforcing frame member below the opening so as to be pivotable up and down. Metal pipe struts.   3. The metal tube support column according to claim 1, wherein the lid body is configured to maintain a substantially horizontal posture in a state in which the opening portion is opened. The lower end of the cable that hangs down from above in the metal tube column is folded back into a semicircular arc shape from below the joint box, rises to the side of the raised member, and is further folded back into a semicircular arc shape to be provided at the upper portion of the joint box. The metal pipe column according to claim 1, wherein the metal pipe column is connected to a connector. The raising member is formed with a slide hole in the full length direction of the lid body, and the joint box can slide in the full length direction of the lid body through a shaft portion that is passed through the slide hole in a retaining state. The metal pipe column according to any one of claims 1 to 4, wherein the metal pipe column is configured to have a unique configuration.

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