JP2010273402A - Distribution box support and supporting structure for distribution box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution box support which eliminates the need for securing ample installations space and enables easy installation and installation position change, and to provide a support structure for a distribution box. <P>SOLUTION: The distribution support 11 includes a pole 30 to the side of which the distribution box B is to be attached; a base 12, which is mounted to the lower part of the pole 30; and three support legs 20 which are supported rotatably by bolts 17 to each of three support leg mounts 13 provided at the base 12. Each support leg 20 can be displaced into the leg folded position and a first leg-open position K1, in which a tilt angle on the side of an acute angle formed between the axis L of the pole 30 and the axis L1 of each support leg 20, is a first tilt angle. Furthermore, the distribution support 11 can be supported, with a single support leg 20 positioned in the second leg-open position K2 inclined at a second tilt angle θ2, which is larger than the first tilt angle and the pole 30 inclined a little to the pole 30 in the second leg-open position K2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a distribution box supporter that supports a distribution box provided to draw a construction power supply at a construction site from an existing power pole, and a distribution box support structure using the wiring box supporter.

  At the construction site, a temporary pole is installed in the vicinity of the existing power pole, and a distribution box is attached to the temporary pole, and a cable is drawn into the distribution pole from the power pole to secure a construction power source. For example, as disclosed in Patent Document 1, a temporary pole (described as a wiring pole in Patent Document 1) is formed by connecting a cylindrical lower pillar and an upper pillar with a connecting cylindrical body. The lower end is installed by being buried in the ground. However, in order to prevent the temporary pole from falling down even if a heavy power distribution box is attached, the lower end of the lower pillar is buried in a deeply dug hole, which makes the installation work of the temporary pole very cumbersome. At the same time, changing the position of the temporary pole was very troublesome.

  Therefore, a folding stand disclosed in Patent Document 2 can be cited as one that facilitates the installation of the support that supports the distribution box and the change of the installation location. This folding stand is composed of a pair of legs and a connecting member for connecting both legs, and each leg is provided with a mounting piece for mounting a distribution box. Each leg has a pair of struts that are pivotably connected at the upper end, one end pivotally supported by one strut, and the other end locked to a formed portion provided on the other strut. It is formed from a rotatable connecting member.

  The connecting member has an X shape in which the central portions of the pair of bar members are rotatably connected. One end of each bar is connected to one leg and the other end is rotatably connected to the other leg, and at least one end of each bar is swingable and fixable in the longitudinal direction of the column in the leg. Has been.

  And while making both legs become a predetermined opening angle and opening and fixing a connecting material until the space | interval of both legs becomes a required value, a folding stand becomes independent. Furthermore, the distribution box is supported by the folding stand by attaching the distribution box to each of the attachment pieces of both legs. Therefore, the folding stand does not need to be deeply buried in the ground like the temporary pole, so the folding stand can be easily installed and transported easily. The installation location can be changed easily.

JP 2004-69632 A JP-A-63-3318394

  However, the folding stand of Patent Document 2 can be self-supported by separating both legs that are isosceles triangles in a side view from each other up to a predetermined distance and further opening both bars of each leg in order to be self-supporting. ing. Moreover, since the power distribution box is supported by the folding stand using attachment pieces provided on both legs, the power distribution box is supported by the folding stand so as to straddle both legs. For this reason, the folding stand must secure a sufficient installation space at the construction site in order to be independent. In addition, since the folding stand is attached with the distribution box straddling a pair of legs, the upper part of both legs is positioned around the distribution box, and an installation space must be secured around the distribution box. Therefore, the folding stand of Patent Document 2 has a problem that it can be installed only at a construction site where a sufficient installation space is secured.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is that it can be installed without securing a sufficient installation space, as well as installation and installation positions. It is an object of the present invention to provide a distribution box support tool and a distribution box support structure that can be easily changed.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a power distribution box is attached to a side, a base attached to a lower part of the support, and the support to support the support. Three support legs, each of which is rotatably supported by a support shaft on each of the three support leg mounting portions provided on the base, and each support leg has an axis of each support leg along the axis of the support column. Can be displaced between an unopened leg position where the arm extends and a first leg-opened position where the acute angle formed between the axis of the support column and the axis of each support leg is the first angle of inclination. By placing all the support legs in the first open leg position, the support column is supported so as to extend vertically, and further, the support column is inclined toward one of the three support legs. It is necessary to provide the support leg mounting part or the support leg with a column inclination means for supporting. To.

  According to a second aspect of the present invention, in the distribution box support tool according to the first aspect, the support column tilting means is provided in the support leg mounting portion, and the tilt angle of the one support leg is set to the first support leg. The gist is that it is displaced to the second leg opening position inclined at a second inclination angle larger than the inclination angle.

  According to a third aspect of the present invention, in the distribution box supporter according to the second aspect of the present invention, all of the support leg mounting portions are provided with the column tilting means, and all the support legs are in the second leg-opening position. The gist is that it is formed to be displaceable.

According to a fourth aspect of the present invention, in the distribution box support tool according to the second or third aspect, the second leg-opening position is a position where the second inclination angle is approximately 90 degrees. Is the gist.
According to a fifth aspect of the present invention, in the distribution box supporter according to any one of the second to fourth aspects, the support leg has an upper side of the support leg formed on the support leg mounting portion. The support column tilting means is formed on the upper inner surface of the guide groove and is in contact with the upper side surface of the support leg at the second open leg position. A support portion for restricting the rotation of the support leg; and the support leg to enable the support shaft to be supported at a position for rotating the support leg in contact with the contact portion to the second open leg position. It consists of a long hole formed in the attachment part.

  According to a sixth aspect of the present invention, in the distribution box support tool according to any one of the first to fifth aspects, a through-hole through which the support column can pass is formed in the base portion. The gist.

  The invention according to claim 7 is a support column to which a distribution box is attached to a side, a base portion attached to a lower portion of the support column, and three support legs provided on the base portion for supporting the support column. A power distribution box support structure using a power distribution box support tool including three support legs rotatably supported by a support shaft on each of the attachment parts, wherein the support column is made of the three support legs. The gist of the present invention is that the power distribution box is positioned near the one support leg, and the distribution box is positioned on the opposite side of the one support leg with respect to the inclined support column.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to install a distribution box support tool, without ensuring installation space enough, installation of a distribution box support tool and a change of an installation position can be performed easily.

The perspective view which shows the state which attached the power distribution box to the power distribution box support tool of embodiment. The perspective view which shows the distribution box support tool of embodiment. (A) And (b) is an expansion perspective view which shows a base. The perspective view which shows the state which attached the power distribution box to the power distribution box support tool of embodiment. The perspective view which shows the state which has located the support leg in the 2nd open leg position and the unopened leg position.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the distribution box support 11 is formed of three support legs 20 that are rotatably supported by the base 12, and a column 30 having a lower part attached to the base 12. ing.

  The base 12 is formed with support leg mounting portions 13 extending in the outward direction at three locations. As shown in FIGS. 3 (a) and 3 (b), each support leg attachment portion 13 is formed from a pair of opposing attachment pieces 14 and an obstruction piece 15 that closes an upper opening between the attachment pieces 14. Has been. A guide groove 16 is formed from the inner surface of the pair of attachment pieces 14 and the inner surface of the closing piece 15. Further, the front end surface (lower end surface) of the closing piece 15 serves as a contact portion 15 a that restricts the rotation of the support leg 20 by contacting the upper side surface of the support leg 20.

  One attachment piece 14 of the pair of attachment pieces 14 is formed through the attachment piece 14 so that the first long hole 14a extends in the vertical direction. The other attachment piece 14 has a second long hole 14b formed at a position facing the first long hole 14a. Further, on the outer surface of the other mounting piece 14, a bulging portion 14c having a substantially annular shape is formed around the second elongated hole 14b so as to bulge outward. In the bulged portion 14c, a first positioning hole 14d having a hexagonal shape in front view is formed near the upper portion of the second long hole 14b, and a second hexagonal shape in front view is formed near the lower portion of the second long hole 14b. A positioning hole 14e is formed. The first positioning hole 14d and the second positioning hole 14e are connected in the vertical direction.

  The upper end portion of the support leg 20 is inserted into each guide groove 16. Further, a bolt 17 as a support shaft is inserted into each guide leg 16 from the first elongated hole 14 a into the guide groove 16, and the shaft portion 17 a of the bolt 17 passes through the upper part of the support leg 20. The second elongated hole 14b is inserted. By screwing the nut 18 into the shaft portion 17a inserted through the second long hole 14b, the support leg 20 is rotatably supported by the bolt 17 with respect to the support leg mounting portion 13. When the support leg 20 rotates, both side surfaces of the support leg 20 are guided by the inner surfaces of the mounting pieces 14 facing each other. The nut 18 is accommodated in the first positioning hole 14d or the second positioning hole 14e, rotated by the first positioning hole 14d or the second positioning hole 14e, and the first long hole 14a and the second long hole 14b. Movement in the length direction is prevented.

  As shown in FIGS. 1 to 3, a through hole 12 a is formed in the base portion 12 so as to penetrate in the vertical direction. In addition, a fixing member 19 that can be screwed into or retracted from the through hole 12a is attached to the base portion 12. And the support | pillar 30 is penetrated by the through-hole 12a. The support column 30 has a plurality of fixing holes 30a that penetrate the support column 30 in the radial direction along the direction in which the axis L of the support column 30 extends, and the distribution box B is fixed to the support column 30 using the fixing holes 30a. (See FIG. 1). Further, by inserting the tip of the fixing member 19 into the fixing hole 30a, the support column 30 is attached (fixed) to the base portion 12 and is erected. In a state where the support column 30 is attached to the base portion 12, the first long hole 14 a and the second long hole 14 b extend along the axis L direction (vertical direction) of the support column 30.

  As shown in FIGS. 3A and 3B, in each of the three support leg mounting portions 13, the nut 18 is positioned by the first positioning hole 14d, and the bolt 17 is fixed by the first long hole 14a and the second long hole. The position of the support leg 20 when it is fixed on the upper side in the length direction of the hole 14b and the upper side surface of the support leg 20 is brought into contact with the contact portion 15a is defined as a first open leg position K1. As shown in FIG. 1, at the first leg opening position K1, the acute angle formed between the axis L of the support column 30 and the axis L1 of each support leg 20 is the first inclination angle θ1. It has become. As shown in FIG. 2, all the support legs 20 are located at the first open leg position K1, and the inclination angles between the axis L of the support column 30 and the axis L1 of each support leg 20 are all the first. When the inclination angle θ1 is reached, the support column 30 is supported so as to extend vertically. In FIG. 1 and FIG. 2, the first inclination angle θ1 is slightly different for convenience of illustration, but the first inclination angle θ1 is actually the same.

  Further, as shown in FIG. 4, in one of the three support leg mounting portions 13, the nut 18 is positioned by the second positioning hole 14e and the bolt 17 is positioned in the first long hole 14a. And the position when it fixes on the lower side in the length direction of the 2nd long hole 14b, and contact | abuts the upper surface of the one support leg 20 to the contact part 15a is made into the 2nd open leg position K2. . At the second leg opening position K2, the acute inclination angle formed between the axis L of the support column 30 and the axis L1 of the support leg 20 at the second leg opening K2 is the second inclination angle θ2. It has become. The second inclination angle θ2 is larger than the first inclination angle θ1 and is approximately 90 degrees.

  Then, only one support leg 20 has the second inclination angle θ2 (substantially 90 degrees) as the acute angle formed between the support 30 and the axis L of the column 30, and the other two supports. When the leg 20 reaches the first inclination angle θ1, the support column 30 is supported in a state of being inclined toward the support leg 20 at the second open leg position K2.

  Furthermore, as shown in FIG. 5, when the three support legs 20 are positioned at the second open leg position K2 in each of the three support leg attachment portions 13, most of the lower surface of each support leg 20 is placed. The support column 30 can be supported vertically while being in contact with the ground. Further, as shown by a two-dot chain line in FIG. 5, the nut 18 is positioned by the first positioning hole 14 d or the second positioning hole 14 e in each of the three support leg mounting portions 13, and the bolt 17 is the first long hole. In the state fixed to the upper part or the lower part of 14a and the 2nd long hole 14b, each support leg 20 is positioned so that the axis line L1 may extend along the axis line L of the support | pillar 30. In this position, each support leg 20 is in an unopened leg position K <b> 3 extending along the axis L of the column 30.

  Therefore, in the distribution box support tool 11, all the support legs 20 can take the three positions of the first open leg position K1, the second open leg position K2, and the unopened leg position K3. Further, the distribution box support tool 11 includes a column tilting means for tilting the column 30 by allowing one of the three support legs 20 to assume the second open leg position K2. . In this embodiment, the column tilting means is provided in all the support leg mounting portions 13. The strut tilting means is a contact portion 15a that regulates the rotation of the support leg 20 by abutting the upper side surface of the support leg 20 formed on the upper inner surface of the guide groove 16 at the second open leg position K2. And the first long hole 14a and the second long hole 14b that enable the bolt 17 to be supported at a position where the support leg 20 in contact with the contact portion 15a is rotated to the second open leg position K2.

  Next, a method for installing the distribution box B on the construction site using the distribution box support 11 will be described. In addition, in the distribution box support tool 11, all the support legs 20 shall be located in the unopened leg position K3. The base 12 is attached to the lower end of the support column 30, and the lower end surface of the support 30 does not protrude from the lower end of the base 12 in this attached state.

  First, as shown in FIGS. 3A and 3B, the nut 18 is positioned in the first positioning hole 14d in the two support leg mounting portions 13 of the three support leg mounting portions 13, and the bolts 17 is fixed to the upper part of the 1st long hole 14a and the 2nd long hole 14b, the upper side surface of the support leg 20 is made to contact | abut to the contact part 15a, and the two support legs 20 are made into 1st leg position K1. To be located.

  Next, as shown in FIG. 4, in the remaining one support leg mounting portion 13, the nut 18 is positioned by the second positioning hole 14e, and the bolt 17 is inserted into the first long hole 14a and the second long hole 14b. The lower side in the length direction is fixed, and the upper side surface of the support leg 20 is brought into contact with the contact portion 15a, so that one support leg 20 is positioned at the second leg opening position K2. Then, the center of gravity of the distribution box support tool 11 moves to the support leg 20 side at the second open leg position K2, and the support column 30 is inclined toward the support leg 20 at the second open leg position K2. Supported by And in the support | pillar 30, when the distribution box B is attached to the surface on the opposite side to the surface toward the support leg 20 in the 2nd open leg position K2, while the distribution box B is supported by the distribution box support tool 11, Distribution box B is installed on the construction site using distribution box support 11.

According to the above embodiment, the following effects can be obtained.
(1) The distribution box support tool 11 positions the support column 30 at the second open leg position K2 by positioning one of the three support legs 20 at the second open leg position K2. By tilting the support box 20 toward the support leg 20, the center of gravity of the distribution box support 11 can be moved to the support leg 20 side at the second open leg position K2. And in the inclined support | pillar 30, the distribution box B is attached to the side surface on the opposite side to the support leg 20 side in the 2nd open leg position K2. For this reason, the distribution box B can be supported without moving the distribution box support 11 by the weight of the distribution box B by moving the center of gravity of the distribution box support 11.

  In this distribution box support tool 11, the upper end portions of the three support legs 20 are supported by the base portion 12, and the legs 17 are opened with the bolts 17 supported by the base portion 12 as the center of rotation. The support column 30 is fixed. For this reason, unlike the case of the folding stand of the background art, the pair of legs are separated from each other, and unlike the case of supporting the distribution box across the pair of legs, the distribution box support tool 11 of the present embodiment is folded. The installation space can be reduced as compared with the stand, and the installation space can be installed without sufficiently securing the installation space. In addition, in order to prevent the distribution box support tool 11 from falling due to the weight of the distribution box, for example, the distribution box support tool 11 is installed as compared with the case where the support tool is not tilted using a wide support plate. Space can be reduced.

  Moreover, since the distribution box support tool 11 supports and supports the support column 30 by the three support legs 20, it is not necessary to embed the support column 30 in the ground in order to set up the support column 30. It is possible to easily install the distribution box support 11 and change the installation position.

(2) The first long hole 14a, the second long hole 14b, and the contact portion 15a are formed in all the support leg mounting portions 13, and all the support legs 20 are in the first leg opening position K1 and the second leg position K1. Open leg position K2
Can take. Therefore, when all the support legs 20 are positioned at the second open leg position K2 and the support legs 20 are inclined at approximately 90 degrees with respect to the support column 30, most of the lower surfaces of all the support legs 20 are brought into contact with the ground. It is possible to prevent contact between the ground and the support 30 and to prevent a gap where the worker's foot is locked.

  (3) The support leg attachment portion 13 is formed with a contact portion 15a. For this reason, when the support leg 20 is positioned at the first open leg position K1 or the second open leg position K2, the upper side surface of the support leg 20 comes into contact with the contact portion 15a, so that the support leg 20 becomes the first leg. It is possible to prevent further leg opening from the first leg opening position K1 or the second leg opening position K2, and the support leg 20 can be positioned at each leg opening position K1, K2.

  (4) The contact portion 15a regulates the rotation of the support leg 20 from the first open leg position K1 and restricts the rotation of the support leg 20 from the second leg opening position K2. For this reason, for example, in order to restrict the rotation of the support leg 20, the distribution box support 11 is compared with the case where the rotation restriction member is provided at each of the first open leg position K 1 and the second open leg position K 2. The number of parts can be reduced.

  (5) The base 12 is formed with a through hole 12a through which the support column 30 can pass. For this reason, when the lower side of the support column 30 is penetrated through the through hole 12 a and the lower end of the support column 30 is grounded to the ground, the lower end of the three support legs 20 and the lower end of the one support column 30 are used. Four places can be grounded and the distribution box support 11 can be stabilized.

(6) Since the distribution box support tool 11 supports the support column 30 and the distribution box B with the three support legs 20, the distribution box support tool 11 can support the support column 30 in a stable state without rattling. .
(7) All three support legs 20 can take the first open leg position K1 and the second open leg position K2. For this reason, for example, even if the ground contact surface of the distribution box support 11 is uneven, it is possible to install the distribution box support 11 in a stable state by appropriately adjusting the position of the opening of each support leg 20. It ’s done.

  (8) The mounting piece 14 is formed with a bulging portion 14c, and the bulging portion 14c regulates the rotation of the nut 18 and extends in the length direction of the first long hole 14a and the second long hole 14b. A first positioning hole 14d and a second positioning hole 14e for preventing the movement of the nut 18 are formed. Then, when the bolt 17 and the nut 18 are screwed in a state where the nut 18 is inserted into the first positioning hole 14d or the second positioning hole 14e, the bolt 17 is changed from the first long hole 14a to the second long hole 14b. The movement from the long hole 14b to the first long hole 14a is prevented, and the support leg 20 can be positioned at the first open leg position K1 or the second open leg position K2.

In addition, you may change the said embodiment as follows.
○ A column tilting means is provided at only one of the three support leg mounting portions 13, and only one of the three support legs 20 can take the first leg opening position K1 and the second leg opening position K2. The remaining two may be formed so that the first open leg position K1 and the unopened leg position K3 can be taken.

The base 12 may not be formed with the through hole 12a but may be formed with an insertion hole that can support the lower end of the column 30 so that the column 30 cannot penetrate the base 12.
O It is good also as a structure which can extend / contract the support leg 20 along the axis line L1. Of the three support legs 20, the two support legs 20 are positioned at the first open leg position K 1, and the remaining one support leg 20 is shorter than the other support legs 20. The support column 30 may be inclined toward the support leg 20. In this case, the extendable support leg 20 constitutes a column tilting means.

  B ... Distribution box, K1 ... First leg open position, K2 ... Second leg open position, K3 ... Non-leg open position, L ... Axle axis, L1 ... Support leg axis, [theta] 1 ... First tilt angle, [theta] 2 ... second inclination angle, 11 ... distribution box support, 12 ... base portion, 12a ... through hole, 13 ... support leg mounting portion, 14a ... first elongated hole as a column inclination means, 14b ... as a column inclination means 2nd long hole, 15a ... contact part as support | pillar inclination means, 16 ... guide groove, 17 ... bolt as support shaft, 20 ... support leg, 30 ... support post.

Claims (7)

A support post to which the distribution box is attached to the side,
A base attached to the bottom of the column;
In order to support the support column, each of the three support leg mounting portions provided in the base comprises three support legs rotatably supported by a support shaft,
Each support leg is an unopened leg position in which the axis of each support leg extends along the axis of the support;
It is possible to displace the first leg position where the acute angle formed between the axis of the support column and the axis of each support leg is the first angle, and all the support legs are The column is supported so as to extend vertically by being positioned in the first open leg position,
Furthermore, the distribution box support tool which equips the said support leg attaching part or the said support leg with the support | pillar inclination means for inclining and supporting the said support | pillar to one of the said three support legs.   The column tilting means is provided at the support leg mounting portion, and is at a second leg opening position in which the tilt angle of the one support leg is tilted at a second tilt angle that is larger than the first tilt angle. The distribution box supporter according to claim 1, which is displaced.   The distribution box supporter according to claim 2, wherein the support leg attaching portion is provided with the support column tilting means, and all the support legs are formed to be displaceable to the second open leg position.   The distribution box support according to claim 2 or 3, wherein the second leg opening position is a position where the second inclination angle is approximately 90 degrees. The support leg is supported so that the upper side of the support leg can rotate in a guide groove formed in the support leg mounting portion.
The column tilting means is formed on an upper inner surface of the guide groove, and a contact portion that regulates rotation of the support leg by contacting an upper surface of the support leg at the second open leg position;
2. A long hole formed in the support leg mounting portion so that the support shaft can be supported at a position where the support leg in contact with the contact portion is rotated to the second open leg position. The distribution box supporter according to any one of claims 2 to 4.   The distribution box supporter according to any one of claims 1 to 5, wherein a through-hole through which the support column can pass is formed in the base portion. A support column to which the distribution box is attached to the side, a base attached to the lower part of the support column, and three support leg mounting portions provided on the base for supporting the support column are rotated by a support shaft. A power distribution box support structure using a power distribution box support tool comprising three support legs supported,
The support column is tilted and supported near one of the three support legs, and the distribution box is positioned on the opposite side of the one support leg with respect to the tilted support column. A distribution box support structure for attaching the distribution box to the side of the column.

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