JP7350635B2 - Column arrangement structure and column arrangement method - Google Patents

Description

The present disclosure relates to a column arrangement structure and a column arrangement method in which an upper column is arranged at the upper end of a lower column.

Conventionally, in order to join columns, for example, a column suspended by a crane (upper column) is lowered toward a column installed on the floor (lower column), and the upper column is Place it at the top of the lower column. At this time, a worker is required to adjust (align) the position and angle of the upper column relative to the lower column. Patent Document 1 discloses that a guide plate is provided that protrudes from the upper end of the lower column in order to position the upper column at the upper end of the lower column (so-called column head).

Utility Model Publication No. 6-73254

However, although it is possible to guide the horizontal position of the upper column relative to the lower column to some extent by simply providing a guide plate as described in Patent Document 1, the upper column suspended by the crane does not touch the upper end of the lower column. It may rotate while descending toward the target. Therefore, the position of the upper pillar in the circumferential direction with respect to the lower pillar may shift, and there is a possibility that the upper pillar cannot be easily positioned at the upper end of the lower pillar.

The present invention has been made in view of the above-mentioned problems, and provides a column arrangement structure that can easily position the upper column at the upper end of the lower column by preventing the upper column from rotating while the upper column is lowering. and a pillar arrangement method.

(1) A column arrangement structure according to at least one embodiment of the present invention includes a lower column extending in the vertical direction and having a rectangular cylindrical shape, and a lower column extending in the vertical direction and disposed at the upper end of the lower column. The upper column includes an upper column having a rectangular tube shape and a main guide plate protruding from the upper end of the lower column, the main guide plate extending from one end of a diagonal line at the inner peripheral edge of the upper end of the lower column. extending from one end toward the other end.

According to the configuration described in (1) above, since the main guide plate protrudes from the upper end of the lower pillar, when the upper pillar is lowered toward the upper end of the lower pillar in order to arrange the upper pillar at the upper end of the lower pillar, The main guide plate is inserted inside the upper column. This main guide plate extends from one end of the diagonal line on the inner peripheral edge of the upper end of the lower column toward the other end, so that the upper column will not rotate when the main guide plate is inserted inside the upper column. Even if the main guide plate and the inner wall surface of the upper column interfere with each other, rotation of the upper column can be suppressed. Therefore, the upper column can be prevented from rotating while the upper column is being lowered, and the upper column can be easily positioned at the upper end of the lower column.

(2) In some embodiments, in the configuration described in (1) above, the main guide plate has a first straight portion extending along the up-down direction from the one end of the upper end of the lower pillar. a second linear portion extending from the other end of the upper end of the lower pillar along the vertical direction; and a second linear portion extending from the tip of the first linear portion in a direction intersecting the vertical direction, a first diagonal line portion extending toward the other end; and a second diagonal line portion extending from the tip of the second straight portion toward the one end along a direction intersecting the up-down direction. Including the shaded part.

According to the configuration described in (2) above, simply by lowering the upper column toward the upper end of the lower column, the inner peripheral edge of the lower end of the upper column interferes with at least one of the first diagonal line portion and the second diagonal line portion. However, it is possible to automatically correct the horizontal positional deviation and circumferential positional deviation of the upper pillar relative to the lower pillar. Therefore, even if the horizontal or circumferential position of the upper column is misaligned with respect to the lower column, the upper column can be positioned horizontally and circumferentially by simply lowering the upper column toward the top of the lower column. be able to.

(3) In some embodiments, in the configuration described in (2) above, a sub-guide plate protruding from the upper end of the lower pillar, the sub-guide plate being above and below the first linear part and the second linear part. further comprising a sub-guide plate having a small length along the direction, at the upper end of the lower pillar, the minimum distance between the first straight part and the inner peripheral edge of the upper end is a1, and the second straight part and the upper end When the minimum distance between the sub-guide plate and the inner circumferential edge of the upper end is a2, and the minimum distance between the sub-guide plate and the inner circumferential edge of the upper end is b, the relationships a1>b and a2>b are satisfied.

According to the configuration described in (3) above, the sub-guide plate has a length smaller in the vertical direction than the first linear portion and the second linear portion of the main guide plate. Further, the minimum distance b between the sub-guide plate and the inner circumferential edge of the upper end is smaller than the minimum distance a1 between the first linear part and the inner circumferential edge of the upper end and the minimum distance a2 between the second linear part and the inner circumferential edge of the upper end. In other words, the clearance formed between the sub guide plate and the inner wall surface of the upper column is smaller than the clearance formed between the main guide plate and the inner wall surface of the upper column, and the sub guide plate is smaller than the clearance formed between the main guide plate and the inner wall surface of the upper column. The upper column can also be positioned at the upper end of the lower column with high precision. Therefore, when placing the upper column at the upper end of the lower column, first correct the horizontal position and circumferential position of the upper column with respect to the lower column using the main guide plate inserted inside the upper column, and then By guiding the upper column to a predetermined position at the upper end of the lower column using the sub-guide plate, the upper column can be easily and accurately positioned at the upper end of the lower column.

(4) A column arrangement structure according to at least one embodiment of the present invention includes a lower column extending in the vertical direction and having a rectangular cylindrical shape, and a lower column extending in the vertical direction and disposed at the upper end of the lower column. The upper pillar includes an upper pillar having a rectangular tube shape and an upper main guide plate protruding from a lower end of the upper pillar, the upper main guide plate extending along a diagonal line at the inner peripheral edge of the lower end of the upper pillar. extending from one end toward the other end.

According to the configuration described in (4) above, even if the upper main guide is provided on the upper column, similar to the effect of the configuration described in (1) above, the upper column is lowered while the upper column is lowering. The upper column can be easily positioned at the upper end of the lower column by preventing rotation.

(5) A column arrangement structure according to at least one embodiment of the present invention includes a lower column extending in the vertical direction and having a rectangular cylindrical shape, and a lower column extending in the vertical direction and disposed at the upper end of the lower column. The upper column includes an upper column having a square tube shape and an abutment guide plate protruding from the upper end of the lower column, the abutment guide plate extending along one side of the inner peripheral edge of the upper end of the lower column. It extends from one end of the first side toward the other end.

According to the configuration described in (5) above, the contact guide plate extends from one end of the first side, which is one side of the inner peripheral edge of the upper end of the lower column, toward the other end. Therefore, by bringing the inner wall surface of the upper column into surface contact with the contact guide plate, rotation of the upper column can be suppressed, and the position of the upper column in the circumferential direction with respect to the lower column can be adjusted. For this reason, by lowering the upper column with the inner wall surface of the upper column in surface contact with the abutment guide plate, the upper column is prevented from rotating while the upper column is lowering, and the upper column is lowered to the lower column. can be easily positioned at the top of the

(6) In some embodiments, in the configuration described in (5) above, the abutment guide plate extends along the up-down direction from the one end of the first side of the upper end of the lower pillar. a second straight part extending along the vertical direction from the other end of the first side of the upper end of the lower pillar; and a second straight part extending along the vertical direction from the tip of the first straight part a first diagonal line portion extending toward the other end side along a direction intersecting the direction; and a first diagonal line portion extending toward the other end side along a direction intersecting the vertical direction; a second diagonal line portion extending toward the one end side.

According to the configuration described in (6) above, simply by lowering the upper column toward the upper end of the lower column, the inner peripheral edge of the lower end of the upper column interferes with at least one of the first diagonal line portion and the second diagonal line portion. However, it is possible to automatically correct the horizontal positional deviation and circumferential positional deviation of the upper pillar relative to the lower pillar. Therefore, even if the horizontal or circumferential position of the upper column is misaligned with respect to the lower column, the upper column can be positioned horizontally and circumferentially by simply lowering the upper column toward the top of the lower column. be able to.

(7) In some embodiments, in the configuration described in (6) above, a sub-guide plate protruding from the upper end of the lower pillar, the sub-guide plate being above and below the first linear part and the second linear part. The sub-guide plate further includes a sub-guide plate having a small length along the direction, and the sub-guide plate is connected to a second side that connects to the one end of the first side and to the other end of the first side. The third side is provided close to either one of the third sides.

According to the configuration described in (7) above, the sub-guide plate has a length smaller in the vertical direction than the first straight part and the second straight part of the abutment guide plate. Moreover, the sub-guide plate is provided close to either the second side or the third side. That is, the sub-guide plate can position the upper column at the upper end of the lower column in the horizontal direction in which the abutment guide plate extends (lateral direction). Therefore, when placing the upper column at the upper end of the lower column, first correct the circumferential position of the upper column with respect to the lower column using the abutting guide plate inserted inside the upper column, and then By guiding the upper column laterally to the upper end of the lower column, the upper column can be easily positioned at the upper end of the lower column.

(8) In some embodiments, in the configuration described in (7) above, at the upper end of the lower pillar, the minimum distance between the first linear part and the second side of the upper end is c1, c2 is the minimum distance between the two straight line parts and the third side of the upper end, d1 is the minimum distance between the sub-guide plate and the second side of the upper end, and the distance between the sub-guide plate and the third side of the upper end is c2. If the minimum distance of d2 is the minimum distance of If they are provided close to each other, the relationship c2>d2 is satisfied.

According to the configuration described in (8) above, when the sub-guide plate is close to the second side, the minimum distance d1 between the sub-guide plate and the second side of the upper end is the same as that between the first straight part and the upper end. is smaller than the minimum distance c1 to the second side of . On the other hand, when the sub-guide plate is provided close to the third side, the minimum distance d2 between the sub-guide plate and the third side at the top end is equal to the distance between the second straight part and the third side at the top end. smaller than the minimum distance c2. That is, the clearance formed between the sub-guide plate and the inner wall surface of the upper column is smaller than the clearance formed between the abutting guide plate and the inner wall surface of the upper column. Therefore, by providing such a sub-guide plate, it is possible to easily and accurately position the upper column at the upper end of the lower column.

(9) A column arrangement method according to at least one embodiment of the present invention is a column arrangement method in which the upper column is arranged at the upper end of the lower column in the column arrangement structure according to (1) above, a lower pillar installation step of installing the lower pillar above the lower pillar; an upper pillar lifting step of lifting the upper pillar above the lower pillar installed on the floor surface; and a lower pillar lifting step of lifting the upper pillar above the lower pillar. and an upper column lowering step of lowering the upper column toward the upper end of the lower column so that the main guide plate is inserted into the column.

According to the method described in (9) above, in the upper column lowering step, the upper column is moved toward the upper end of the lower column so that the main guide plate is inserted into the upper column that is lifted above the lower column. and lower it. Therefore, even if the upper column attempts to rotate while the main guide plate is inserted inside the upper column, the main guide plate and the inner wall surface of the upper column will interfere, preventing the upper column from rotating. . Therefore, the upper column can be prevented from rotating while the upper column is being lowered, and the upper column can be easily positioned at the upper end of the lower column.

(10) A column arrangement method according to at least one embodiment of the present invention is a column arrangement method in which the upper column is arranged at the upper end of the lower column in the column arrangement structure according to (5) above, a lower pillar installation step of installing the lower pillar above the lower pillar; an upper pillar lifting step of lifting the upper pillar above the lower pillar installed on the floor surface; and a lower pillar lifting step of lifting the upper pillar above the lower pillar. and an upper column lowering step of lowering the upper column toward the upper end of the lower column with the abutment guide plate in surface contact with the inner wall surface of the column.

According to the method described in (10) above, in the upper column lowering step, the upper column is moved to the lower column while the contact guide plate is in surface contact with the inner wall surface of the upper column lifted above the lower column. lower towards the top. Therefore, rotation of the upper column can be suppressed, and the position of the upper column in the circumferential direction can be adjusted with respect to the lower column. Therefore, by lowering the upper column with the inner wall surface of the upper column in surface contact with the contact guide plate, it is possible to prevent the upper column from rotating while the upper column is lowering, and to lower the upper column to the lower column. Can be easily positioned at the top end.

According to at least one embodiment of the present invention, the upper column can be easily positioned at the upper end of the lower column by suppressing rotation of the upper column while the upper column is lowered.

FIG. 2 is a perspective view showing a lower column and an upper column to which the column arrangement structure according to the first embodiment of the present invention is applied. FIG. 1 is a schematic configuration diagram showing the configuration of a main guide plate according to a first embodiment of the present invention. It is a perspective view which shows the lower pillar and upper pillar to which the pillar arrangement structure based on the modification of 1st Embodiment of this invention is applied. It is an explanatory view for explaining composition of a sub guide plate concerning a modification of a 1st embodiment of the present invention. FIG. 7 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to a second embodiment of the present invention is applied. It is a schematic block diagram which shows the structure of the contact guide plate based on 2nd Embodiment of this invention. It is a perspective view which shows the lower pillar and upper pillar to which the pillar arrangement structure based on the modification of 2nd Embodiment of this invention is applied. It is an explanatory view for explaining composition of a sub guide plate concerning a modification of a 2nd embodiment of the present invention. FIG. 7 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to yet another modification of the second embodiment of the present invention is applied. It is a flowchart of the pillar arrangement method concerning a 1st embodiment of the present invention. It is a flowchart of the pillar arrangement method concerning a 2nd embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, and are merely illustrative examples. do not have.

(First embodiment)
FIG. 1 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to a first embodiment of the present invention is applied. As shown in FIG. 1, the lower pillar 2 extends in the vertical direction when installed on the floor surface 4. The lower pillar 2 has a square tube shape by being surrounded by the four wall members 3A, 3B, 3C, and 3D, and the inner wall surface 5 of the lower pillar 2 is surrounded by the four wall members 3A, 3B, 3C. , 3D inner wall surfaces. Further, the upper end 6 of the lower pillar 2 is open, and the inner peripheral edge 8 of the upper end 6 of the lower pillar 2 has a square shape. In the first embodiment, the wall member 3B is arranged to face the wall member 3A, and the wall member 3D is arranged to face the wall member 3C.

A main guide plate 10 is provided on the lower column 2. The main guide plate 10 has a plate-like shape and protrudes upward from the upper end 6 of the lower column 2. A flange portion 14 is provided at the lower end 12 of the main guide plate 10. The flange portion 14 is for fixing the main guide plate 10 to the lower column 2. For example, a part of the flange portion 14 is attached to the inner wall surface 5 of the lower column 2 (in the first embodiment, the wall member 3A). A portion where the wall member 3D is connected, and a portion where the wall member 3B and the wall member 3C are connected) are integrally attached.

FIG. 2 is a schematic configuration diagram showing the configuration of the main guide plate according to the first embodiment of the present invention, and is a top view of the lower column 2 shown in FIG. 1 viewed from above. As shown in FIG. 2, the main guide plate 10 extends from one end 16 of the diagonal line on the inner peripheral edge 8 of the upper end 6 of the lower column 2 toward the other end 18. One end portion 16 is a portion formed by connecting wall member 3A and wall member 3D, and the other end portion 18 is a portion formed by connecting wall member 3B and wall member 3C. be. In FIG. 2, one end 16 and the other end 18 are shown in broken lines.

Further, the main guide plate 10 may be configured to be able to be smoothly inserted into the upper column 17 (to prevent interference between the main guide plate 10 and the inner wall surface of the upper column 17 while the upper column 17 is lowered). good. At this time, both ends of the main guide plate 10 are cut out so as to be close to the inner wall surface of the upper column 17.

As shown in FIG. 1, the main guide plate 10 may include a first straight section 10a, a second straight section 10b, a first diagonal section 10c, and a second diagonal section 10d. The first linear portion 10a is a portion extending upward from one end portion 16 of the upper end 6 of the lower column 2 along the up-down direction. The second linear portion 10b is a portion extending upward from the other end portion 18 of the upper end 6 of the lower column 2 along the vertical direction. The first diagonal line portion 10c is a portion extending upward from the tip 10e of the first linear portion 10a toward the other end portion 18 along a direction intersecting the vertical direction. The second diagonal line portion 10d is a portion extending upward from the tip 10f of the second linear portion 10b toward the one end portion 16 along a direction intersecting the vertical direction. In the first embodiment, the tip of the first diagonal line portion 10c and the tip of the second diagonal line portion 10d are connected.

The upper pillar 17 extends along the vertical direction and is arranged at the upper end 6 of the lower pillar 2. This upper column 17 has a square tube shape by being surrounded by four wall members 19A, 19B, 19C, and 19D, and the inner wall surface 21 of the upper column 17 is surrounded by four wall members 19A, 19B, 19C, and 19C. , 19D. The lower end 20 of the upper pillar 17 is open, and the inner peripheral edge 22 of the lower end 20 of the upper pillar 17 has the same shape as the inner peripheral edge 8 of the upper end 6 of the lower pillar 2, and has a square shape. . In this embodiment, the wall member 19B is arranged to face the wall member 19A, and the wall member 19D is arranged to face the wall member 19C.

Furthermore, an erection piece 42 may be provided on the outer peripheral surface of the lower pillar 2 and the outer peripheral surface of the upper pillar 17 in order to temporarily fix the position and angle of the upper pillar 17 arranged at the upper end 6 of the lower pillar 2. .

The functions and effects of the column arrangement structure according to the first embodiment of the present invention will be explained. According to the first embodiment, the main guide plate 10 protrudes upward from the upper end 6 of the lower pillar 2. Therefore, in order to arrange the upper pillar 17 at the upper end 6 of the lower pillar 2, the upper pillar 17 is 2, the main guide plate 10 is inserted into the upper column 17. This main guide plate 10 extends from one end 16 of the diagonal line on the inner peripheral edge 8 of the upper end 6 of the lower column 2 toward the other end 18, so that the main guide plate 10 is inserted into the upper column 17. Even if the upper column 17 attempts to rotate at times, the main guide plate 10 and the inner wall surface 5 of the upper column 17 interfere with each other, and the rotation of the upper column 17 can be suppressed. Therefore, it is possible to prevent the upper column 17 from rotating while the upper column 17 is lowering, and to easily position the upper column 17 at the upper end 6 of the lower column 2.

Further, according to the first embodiment, by simply lowering the upper column 17 toward the upper end 6 of the lower column 2, the inner circumferential edge 22 of the lower end 20 of the upper column 17 is adjusted to the first diagonal line portion 10c and the second diagonal line portion 10d. By interfering with at least one of them, it is possible to automatically correct a horizontal positional shift or a circumferential positional shift of the upper column 17 with respect to the lower column 2. Therefore, even if the horizontal position or circumferential position of the upper column 17 with respect to the lower column 2 is shifted, simply lowering the upper column 17 toward the upper end 6 of the lower column 2 will cause the upper column 17 to move horizontally. and can be positioned circumferentially.

In the first embodiment, the main guide plate 10 is provided on the lower column 2, and when the upper column 17 is arranged at the upper end 6 of the lower column 2, this main guide plate 10 is inserted into the inside of the upper column 17. However, the present invention is not limited to this embodiment. In another embodiment of the present invention, the pillar arrangement structure includes a lower pillar extending in the vertical direction and having a rectangular cylindrical shape, and an upper pillar extending in the vertical direction and disposed at the upper end of the lower pillar. , an upper pillar having a square cylinder shape, and an upper main guide plate protruding from the lower end of the upper pillar, the upper main guide plate extending from one end of a diagonal line at the inner peripheral edge of the lower end of the upper pillar to the other end. and extend.

(Modified example of the first embodiment)
A modification of the first embodiment of the present invention will be described with reference to FIGS. 3 and 4. The modified example of the first embodiment is one in which a sub-guide plate 24 is added to the lower column 2 described in the first embodiment, and the other configurations are the same as the configuration described in the first embodiment. In the modification of the first embodiment, the same components as those in the first embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

FIG. 3 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to a modification of the first embodiment of the present invention is applied. As shown in FIG. 3, the lower pillar 2 may be provided with a sub-guide plate 24. The sub-guide plate 24 protrudes upward from the upper end 6 of the lower column 2, and has a smaller length in the vertical direction than the first straight part 10a and the second straight part 10b. In the second embodiment, the lower column 2 is provided with four sub-guide plates 24, the first sub-guide plates 24A (24) are attached to each of the wall members 3A and 3B, and the wall members 3C and 3D A second sub-guide plate 24B (24) is attached to each of the sub-guide plates 24B (24). Furthermore, the protruding size of each of the four sub-guide plates 24 decreases toward the inner wall surfaces of the wall members 3A, 3B, 3C, and 3D to which each of the four sub-guide plates 24 is attached. That is, the upper end surface of the sub-guide plate 24 is formed into an inclined surface.

FIG. 4 is an explanatory diagram for explaining the configuration of a sub-guide plate according to a modification of the first embodiment of the present invention. The direction from the wall member 3A to the wall member 3B (vertical direction in the paper of FIG. 4) is referred to as a first direction, and the direction from the wall member 3C to the wall member 3D (horizontal direction in the paper of FIG. 4) is referred to as a second direction. This is explained by writing: Note that the first direction is a direction perpendicular to the second direction, and is a direction orthogonal to the wall members 3A and 3B.

At the upper end 6 of the lower column 2, the minimum distance between the first straight portion 10a in the first direction and the inner circumferential edge 8 of the upper end 6 (inner wall surface of the wall member 3A in this embodiment) is a1, and the second distance in the first direction is The minimum distance between the straight portion 10b and the inner circumferential edge 8 of the upper end 6 (in this embodiment, the inner wall surface of the wall member 3B) is a2, and the minimum distance between the first sub-guide plate 24A and the inner circumferential edge 8 of the upper end 6 in the first direction is a2. When the distance is b, the relationships a1>b and a2>b are satisfied.

In addition, at the upper end 6 of the lower column 2, the minimum distance between the first straight portion 10a in the second direction and the inner peripheral edge 8 of the upper end 6 (in this embodiment, the inner wall surface of the wall member 3D) is set as a3, and the minimum distance in the second direction is a3. The minimum distance between the second straight portion 10b and the inner circumferential edge 8 of the upper end 6 (in this embodiment, the inner wall surface of the wall member 3C) is a4, and the distance between the second sub-guide plate 24B and the inner circumferential edge 8 of the upper end 6 in the second direction is a4. When the minimum distance of is b2, the relationships a3>b2 and a4>b2 are satisfied.

The functions and effects of the column arrangement structure according to the modification of the first embodiment of the present invention will be explained. According to a modification of the first embodiment, the lower column 2 is further provided with a first sub-guide plate 24A and a second sub-guide plate 24B that protrude upward from the upper end 6 of the lower column 2. The first sub-guide plate 24A and the second sub-guide plate 24B have a length smaller in the vertical direction than the first straight part 10a and the second straight part 10b of the main guide plate 10.

In addition, in the first direction, the minimum distance b between the first sub-guide plate 24A and the inner circumferential edge 8 of the upper end 6 is the same as the minimum distance a1 between the first straight section 10a and the inner circumferential edge 8 of the upper end 6, and the second straight section 10b. and the inner peripheral edge 8 of the upper end 6 is smaller than the minimum distance a2. In other words, when the upper column 17 is arranged at the upper end 6 of the lower column 2, the size of the clearance in the first direction formed between the first sub-guide plate 24A and the inner wall surface 21 of the upper column 17 is The first sub-guide plate 24A is smaller than the size of the clearance formed between the guide plate 10 and the inner wall surface 21 of the upper column 17 in the first direction, and the first sub-guide plate 24A lowers the upper column 17 with higher precision than the main guide plate 10. It can be positioned at the upper end 6 of the column 2.

Similarly, in the second direction, the minimum distance b2 between the second sub-guide plate 24B and the inner circumferential edge 8 of the upper end 6 is the same as the minimum distance a3 between the first straight section 10a and the inner circumferential edge 8 of the upper end 6, and the second straight section 10b and the inner peripheral edge 8 of the upper end 6 is smaller than the minimum distance a4. In other words, when the upper column 17 is arranged at the upper end 6 of the lower column 2, the size of the clearance in the second direction formed between the second sub-guide plate 24B and the inner wall surface 21 of the upper column 17 is The second sub-guide plate 24B is smaller than the size of the clearance formed between the guide plate 10 and the inner wall surface 21 of the upper column 17 in the second direction, and the second sub-guide plate 24B can move the upper column 17 with higher precision than the main guide plate 10. It can be positioned at the upper end 6 of the lower column 2.

Therefore, when placing the upper column 17 at the upper end 6 of the lower column 2, first the horizontal position and circumferential position of the upper column 17 with respect to the lower column 2 are determined by the main guide plate 10 inserted inside the upper column 17. Then, by guiding the upper column 17 to a predetermined position of the upper end 6 of the lower column 2 by the first sub-guide plate 24A and the second sub-guide plate 24B, the upper column 17 is guided to the upper end 6 of the lower column 2. positioning can be performed easily and with high precision.

In the modification of the first embodiment, a case has been described in which the first sub-guide plate 24A and the second sub-guide plate 24B are provided on the lower column 2, but the present invention is not limited to this embodiment. Only the first sub-guide plate 24A may be provided on the lower column 2, or only the second sub-guide plate 24B may be provided on the lower column 2. Further, in the modified example of the first embodiment, the lower column 2 is provided with two first sub-guide plates 24A, but the present invention is not limited to this embodiment, and the lower column 2 is provided with one first sub-guide plate 24A. A guide plate 24A may be provided. Similarly, one second sub-guide plate 24B may be provided on the lower pillar 2.

Furthermore, in the modification of the first embodiment, when the lower column 2 is viewed from above, the first sub-guide plate 24A and the second sub-guide plate 24B are spaced apart from the inner wall surface 5 of the lower column 2; The invention is not limited to this embodiment. In some embodiments, minimum distance b and minimum distance b2 may be zero.

(Second embodiment)
FIG. 5 is a perspective view showing a lower column and an upper column to which the column arrangement structure according to the second embodiment of the present invention is applied. As shown in FIG. 5, the lower pillar 102 extends in the vertical direction when installed on the floor surface 104. This lower pillar 102 has a square cylinder shape by being surrounded by four wall members 103A, 103B, 103C, 103D, and the inner wall surface 105 of the lower pillar 102 is surrounded by four wall members 103A, 103B, 103C. , 103D. Further, the upper end 106 of the lower pillar 102 is open, and the inner peripheral edge 108 of the upper end 106 of the lower pillar 102 has a square shape. In the second embodiment, a wall member 103B is arranged to face the wall member 103A, and a wall member 103D is arranged to face the wall member 103C.

A contact guide plate 110 is provided on the lower column 102. The contact guide plate 110 has a plate-like shape and projects upward from the upper end 106 of the lower column 102. A flange portion 114 is provided at the lower end 112 of the contact guide plate 110. The flange portion 114 is for fixing the contact guide plate 110 to the lower column 102, and for example, a part of the flange portion 114 is integrally attached to the inner wall surface 105 of the lower column 102.

FIG. 6 is a schematic configuration diagram showing the configuration of the contact guide plate according to the second embodiment of the present invention, and is a top view of the lower column 102 shown in FIG. 5 viewed from above. As shown in FIG. 6, the contact guide plate 110 is located at one end of the first side 130, which is one side of the inner peripheral edge 108 of the upper end 106 of the lower column 102, so as to closely face the inner wall surface of the wall member 103B. It extends from 131 toward the other end 132 . In the second embodiment, the inner wall surface of the wall member 103B is the first side 130, and one end portion 131 of the first side 130 is a portion formed by connecting the wall member 103B and the wall member 103C, The other end portion 132 of the first side 130 is a portion formed by connecting the wall member 103B and the wall member 103D. In FIG. 2, one end 131 and the other end 132 are shown by broken lines.

Furthermore, the abutment guide plate 110 is configured to be able to be smoothly inserted into the upper column 117 (to prevent interference between the abutment guide plate 110 and the inner wall surface 121 of the upper column 117 while the upper column 117 is lowered). may be done. At this time, both ends of the contact guide plate 10 are cut out so as to be close to the inner wall surface 121 of the upper column 117.

As shown in FIG. 5, the abutment guide plate 110 may include a first linear portion 110a, a second linear portion 110b, a first diagonal line portion 110c, and a second diagonal line portion 110d. The first linear portion 110a is a portion extending upward along the vertical direction from one end portion 131 of the first side 130 of the upper end 106 of the lower column 102. The second linear portion 110b is a portion extending upward along the vertical direction from the other end portion 132 of the first side 130 of the upper end 106 of the lower column 102. The first diagonal line portion 110c is a portion extending upward from the tip 110e of the first linear portion 110a toward the other end portion 132 along a direction intersecting the vertical direction. The second diagonal line portion 110d is a portion extending upward from the tip 110f of the second linear portion 110b toward the one end portion 131 along a direction intersecting the vertical direction. In the second embodiment, the tip of the first shaded portion 110c and the tip of the second shaded portion 110d are connected.

The upper pillar 117 extends along the vertical direction and is arranged at the upper end 106 of the lower pillar 102. This upper column 117 has a regular square cylinder shape by being surrounded by four wall members 119A, 119B, 119C, 119D, and the inner wall surface 121 of the upper column 117 is surrounded by four wall members 119A, 119B, 119C, 119D. , 119D. Further, the lower end 120 of the upper pillar 117 is open, and the inner peripheral edge 122 of the lower end 120 of the upper pillar 117 has the same shape as the inner peripheral edge 108 of the upper end 106 of the lower pillar 102, and has a square shape. . In the second embodiment, a wall member 119B is arranged to face the wall member 119A, and a wall member 119D is arranged to face the wall member 119C.

Further, in order to temporarily fix the position and angle of the upper column 117 disposed at the upper end 106 of the lower column 102, an erection piece 142 may be provided on the outer circumferential surface of the lower column 102 and the outer circumferential surface of the upper column 117. .

The functions and effects of the column arrangement structure according to the second embodiment of the present invention will be explained. According to the second embodiment, the abutment guide plate 110 extends from one end 131 of the first side 130 toward the other end 132. Therefore, by bringing the inner wall surface 121 of the upper column 117 into surface contact with the contact guide plate 110, rotation of the upper column 117 can be suppressed, and the position of the upper column 117 in the circumferential direction with respect to the lower column 102 can be adjusted. be able to. Therefore, by lowering the upper column 117 with the inner wall surface 121 of the upper column 117 in surface contact with the contact guide plate 110, rotation of the upper column 117 while the upper column 117 is being lowered is prevented. , the upper column 117 can be easily positioned at the upper end 106 of the lower column 102.

Further, according to the second embodiment, by simply lowering the upper column 117 toward the upper end 106 of the lower column 102, the inner circumferential edge 122 of the lower end 120 of the upper column 117 is adjusted to the first diagonal line portion 110c and the second diagonal line portion 110d. By interfering with at least one of them, it is possible to automatically correct a horizontal positional shift or a circumferential positional shift of the upper column 117 with respect to the lower column 102. Therefore, even if the horizontal position or circumferential position of the upper column 117 is misaligned with respect to the lower column 102, simply lowering the upper column 117 toward the upper end 106 of the lower column 102 moves the upper column 117 in the horizontal direction. and can be positioned circumferentially.

(Modified example of second embodiment)
A pillar arrangement structure according to a modification of the second embodiment of the present invention will be described with reference to FIGS. 7 and 8. The modified example of the second embodiment is one in which a sub-guide plate 124 is added to the lower column 102 described in the second embodiment, and the other configurations are the same as the configuration described in the second embodiment. In the modified example of the second embodiment, the same constituent elements as those of the second embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

FIG. 7 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to a modification of the second embodiment of the present invention is applied. As shown in FIG. 7, a sub-guide plate 124 may be provided on the lower column 102. The sub-guide plate 124 protrudes upward from the upper end 106 of the lower column 102, and has a smaller length in the vertical direction than the first straight part 110a and the second straight part 110b. In a modification of the second embodiment, two sub-guide plates 124 are provided on the lower column 102. The first sub-guide plate 124A (124) is attached to the wall member 103C so that its protruding size decreases toward the inner wall surface of the wall member 103C. The second sub-guide plate 124B (124) is attached to the wall member 103D so that its protruding size decreases toward the inner wall surface of the wall member 103D.

FIG. 8 is an explanatory diagram for explaining the configuration of a sub-guide plate according to a modification of the second embodiment of the present invention. The direction from the wall member 103A to the wall member 103B (vertical direction in the paper of FIG. 8) is referred to as a first direction, and the direction from the wall member 103C to the wall member 103D (horizontal direction in the paper of FIG. 4) is referred to as a second direction. This is explained by writing: Note that the first direction is a direction perpendicular to the second direction, and is a direction orthogonal to the wall member 103A and the wall member 103B.

The first sub-guide plate 124A is provided close to the second side 134 (in other words, the inner wall surface of the wall member 3C) connected to the one end 131 of the first side 130, and the second sub-guide plate 124B is provided on the first side It is provided close to the third side 136 (that is, the inner wall surface of the wall member 3D) that connects with the other end 132 of the wall member 130 .

Specifically, at the upper end 106 of the lower pillar 102, c1 is the minimum distance between the first straight section 110a and the second side 134 of the upper end 106 in the second direction, and c1 is the minimum distance between the second straight section 110b and the upper end 106 in the second direction. c2 is the minimum distance from the third side 136, d1 is the minimum distance between the first sub-guide plate 124A and the second side 134 of the upper end 106 in the second direction, and the distance between the second sub-guide plate 124B and the upper end 106 in the second direction is When the minimum distance to the third side 136 is d2, the relationships c1>d1 and c2>d2 are satisfied.

The functions and effects of the column arrangement structure according to the modification of the second embodiment of the present invention will be explained. According to a modification of the second embodiment, the lower column 102 is further provided with a first sub-guide plate 124A and a second sub-guide plate 124B that protrude upward from the upper end 106 of the lower column 102. The first sub-guide plate 124A and the second sub-guide plate 124B have a length smaller in the vertical direction than the first straight part 110a and the second straight part 110b of the abutment guide plate 110. Further, the first sub-guide plate 124A is provided close to the second side 134, and the second sub-guide plate 124B is provided close to the third side 136.

In other words, the first sub-guide plate 124A and the second sub-guide plate 124B position the upper column 117 at the upper end 106 of the lower column 102 in the horizontal direction in which the abutment guide plate 110 extends (first direction). can do. Therefore, when placing the upper column 117 at the upper end 106 of the lower column 102, first correct the position of the upper column 117 in the circumferential direction with respect to the lower column 102 using the contact guide plate 110 inserted inside the upper column 117. Next, by guiding the upper column 117 to the upper end 106 of the lower column 102 in the first direction by the first sub-guide plate 124A and the second sub-guide plate 124B, the upper column 117 is guided to the upper end 106 of the lower column 102. can be easily positioned.

Further, according to the modification of the second embodiment, in the second direction, the minimum distance d1 between the first sub-guide plate 124A and the second side 134 of the upper end 106 is the same as the minimum distance d1 between the first sub-guide plate 124A and the second side 134 of the upper end 106. It is smaller than the minimum distance c1 to the side 134. Further, the minimum distance d2 between the second sub-guide plate 124B and the third side 136 of the upper end 106 is smaller than the minimum distance c2 between the second straight portion 110b and the third side 136 of the upper end 106.

In other words, when the upper column 117 is arranged at the upper end 106 of the lower column 102, the size of the clearance in the second direction formed between the first sub-guide plate 124A and the inner wall surface 121 of the upper column 117 is It is smaller than the size of the clearance formed between the contact guide plate 110 and the inner wall surface 121 of the upper column 117 in the second direction. Furthermore, the size of the clearance in the second direction formed between the second sub-guide plate 124B and the inner wall surface 121 of the upper column 117 is as follows: It is smaller than the size of the clearance formed in the second direction. Therefore, by providing the first sub-guide plate 124A and the second sub-guide plate 124B, it is possible to easily and accurately position the upper column 117 at the upper end 106 of the lower column 102.

In the modification of the second embodiment, both the first sub-guide plate 124A and the second sub-guide plate 124B are provided on the lower column 102, but the present invention is not limited to this embodiment, and any number of sub-guide plates may be used. In this embodiment, the lower pillar 102 may be provided with only one of the first sub-guide plate 124A and the second sub-guide plate 124B.

Furthermore, in the modification of the second embodiment, when the lower column 102 is viewed from above, the first sub-guide plate 124A and the second sub-guide plate 124B are spaced apart from the inner wall surface 105 of the lower column 102; The invention is not limited to this embodiment. In some embodiments, the minimum distance d1 and the minimum distance d2 may be zero.

FIG. 9 is a perspective view showing a lower column and an upper column to which a column arrangement structure according to yet another modification of the second embodiment of the present invention is applied. As shown in FIG. 9, in yet another modification of the second embodiment of the present invention, the lower pillar 102 may further be provided with a third guide plate 124C. The third guide plate 124C is attached to the wall member 103A so that its protruding size decreases toward the inner wall surface of the wall member 103A. That is, the third guide plate 124C can guide the upper column 117 to the upper end 106 of the lower column 102 in the first direction so as to supplement the guidance of the abutment guide plate 110.

(Column arrangement method of first embodiment)
FIG. 10 is a flowchart of the column arrangement method according to the first embodiment of the present invention. In the column arrangement method according to the first embodiment of the present invention, in order to join the lower column 2 and the upper column 17 to which the column arrangement structure described in the first embodiment is applied, the upper column is attached to the upper end 6 of the lower column 2. This is a method of arranging 17. Such a column arrangement method includes a lower column installation step S1, an upper column lifting step S2, and an upper column lowering step S3. In the lower pillar installation step S1, the lower pillar 2 is installed on the floor surface 4. In the upper column lifting step S2, the upper column 17 is lifted above the lower column 2 installed on the floor surface 4. The upper column 17 is lifted above the lower column 2 by, for example, a crane. In the upper column lowering step S3, the upper column 17 is lowered toward the upper end 6 of the lower column 2 so that the main guide plate 10 is inserted into the upper column 17 suspended above the lower column 2.

According to such a method, even if the upper column 17 tries to rotate while the main guide plate 10 is inserted inside the upper column 17, the main guide plate 10 and the inner wall surface 21 of the upper column 17 will interfere with each other. , rotation of the upper column 17 can be suppressed. Therefore, it is possible to prevent the upper column 17 from rotating while the upper column 17 is lowering, and to easily position the upper column 17 at the upper end 6 of the lower column 2.

(Column arrangement method of second embodiment)
FIG. 11 is a flowchart of a column arrangement method according to the second embodiment of the present invention. In the column arrangement method according to the second embodiment of the present invention, in order to join the lower column 102 and the upper column 117 to which the column arrangement structure described in the second embodiment is applied, the upper column is attached to the upper end 106 of the lower column 102. 117. Such a column arrangement method includes a lower column installation step S101, an upper column lifting step S102, and an upper column lowering step S103. In the lower pillar installation step S101, the lower pillar 102 is installed on the floor surface 104. In the upper column lifting step S102, the upper column 117 is lifted above the lower column 102 installed on the floor surface 104. The upper column 117 is lifted above the lower column 102 by, for example, a crane. In the upper column lowering step S103, the upper column 117 is moved toward the upper end 106 of the lower column 102 with the abutting guide plate 110 in surface contact with the inner wall surface 121 of the upper column 117 suspended above the lower column 102. lower it.

According to such a method, by bringing the contact guide plate 110 into surface contact with the inner wall surface 121 of the upper column 117 suspended above the lower column 102, the rotation of the upper column 117 is suppressed, and the lower column 102 After adjusting the position of the upper column 117 in the circumferential direction, the upper column 117 can be lowered toward the upper end 106 of the lower column 102, so that the upper column 117 can be easily positioned at the upper end 106 of the lower column 102. I can do it.

Although the pillar arrangement structure and the pillar arrangement method according to the first and second embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and the present invention is not limited to the above embodiments. Various changes are possible.

2 Lower pillar 4 Floor surface 5 Inner wall surface of the lower pillar 6 Upper end of the lower pillar 8 Inner peripheral edge 10 of the upper end of the lower pillar Main guide plate 10a First straight line part 10b Second straight part 10c First diagonal line part 10d Second diagonal line part 10e Tip 10f of first straight section Tip 16 of second straight section One end of diagonal 17 Upper column 18 Other end of diagonal 21 Inner wall surface of upper column 24 Sub-guide plate 42 Erection piece S1 Pillar installation step S2 Step S3 Upper column lowering step

102 Lower column 104 Floor surface 105 Inner wall surface of the lower column 106 Upper end of the lower column 108 Inner peripheral edge of the upper end of the lower column 110 Contact guide plate 110a First straight section 110b Second straight section 110c First oblique line section 110d Second oblique line section 110e Tip 110f of the first straight part Tip 117 of the second straight part Upper column 121 Inner wall surface 124 of the upper column Sub-guide plate 130 First side 131 One end of the first side 132 Other end of the first side 134 Second side 136 Third side 142 Erection piece S101 Pillar installation step S102 Step S103 Upper pillar lowering step

Claims (3)

a lower pillar extending along the vertical direction and having a square cylinder shape;
an upper pillar extending along the vertical direction and disposed at the upper end of the lower pillar, the upper pillar having a square cylinder shape;
a main guide plate protruding from the upper end of the lower pillar;
a sub-guide plate protruding from the upper end of the lower pillar ;
The main guide plate is
Extending from one end of a diagonal line on the inner peripheral edge of the upper end of the lower pillar toward the other end,
a first linear portion extending along the up-down direction from the one end of the upper end of the lower pillar;
a second straight portion extending from the other end of the upper end of the lower pillar along the up-down direction;
a first diagonal line portion extending from a tip of the first linear portion toward the other end along a direction intersecting the up-down direction;
a second diagonal line portion extending from the tip of the second linear portion toward the one end side along a direction intersecting the up-down direction;
The sub-guide plate is
The length along the up-down direction is smaller than the first straight part and the second straight part,
At the upper end of the lower pillar, the minimum distance between the first linear part and the inner peripheral edge of the upper end is a1, the minimum distance between the second straight part and the inner peripheral edge of the upper end is a2, and the sub-guide plate and the minimum distance between the inner peripheral edge of the upper end and the inner peripheral edge is b, the relationship of a1>b and a2>b is satisfied,
Pillar arrangement structure. a lower pillar extending along the vertical direction and having a square cylinder shape;
an upper pillar extending along the vertical direction and disposed at the upper end of the lower pillar, the upper pillar having a square cylinder shape;
an upper main guide plate protruding from the lower end of the upper pillar;
an upper sub-guide plate protruding from the lower end of the upper pillar ;
The upper main guide plate is
extending from one end of a diagonal line at the inner peripheral edge of the lower end of the upper pillar toward the other end;
a first straight portion extending from the one end of the lower end of the upper pillar along the up-down direction;
a second straight portion extending from the other end of the lower end of the upper pillar along the up-down direction;
a first diagonal line portion extending from a tip of the first linear portion toward the other end along a direction intersecting the up-down direction;
a second diagonal line portion extending from the tip of the second linear portion toward the one end side along a direction intersecting the up-down direction;
The upper sub-guide plate is
The length along the up-down direction is smaller than the first straight part and the second straight part,
At the lower end of the upper pillar, a1 is the minimum distance between the first linear part and the inner peripheral edge of the lower end, a2 is a minimum distance between the second straight part and the inner peripheral edge of the lower end, and the upper sub-guide When the minimum distance between the plate and the inner peripheral edge of the lower end is b, the relationship a1>b and a2>b is satisfied;
Pillar arrangement structure. A pillar arrangement method in which the upper pillar is arranged at the upper end of the lower pillar in the pillar arrangement structure according to claim 1,
a lower pillar installation step of installing the lower pillar on a floor surface;
an upper pillar lifting step of lifting the upper pillar above the lower pillar installed on the floor surface;
an upper column lowering step for lowering the upper column toward the upper end of the lower column so that the main guide plate is inserted into the upper column suspended above the lower column; Placement method.

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