Sectional column connection guide jig and method for connecting sectional columns

Abstract

This system guides the upper end of the lower column to the lower end of the upper column without the need for human intervention from workers, thereby improving work efficiency and safety. [Solution] A split column connecting guide jig 1 for guiding the connection between the upper end of a lower column and the lower end of an upper column that constitute a split column, comprising: a guide mounting member 11 that is detachably attached to the lower end of the upper column; a main guide member 12 that is fixed to the guide mounting member 11, protrudes downward from the guide mounting member 11, and is provided with a main guide-side guide portion 12b2 that abuts against the upper end of the lower column and guides the upper end of the lower column to the lower end of the upper column; and an auxiliary guide member 13 that is slidably mounted in the vertical direction on the main guide member 12 and is provided with an auxiliary guide-side guide portion 13b2 that abuts against the upper end of the lower column and guides the upper end of the lower column to the main guide-side guide portion 12b2 of the main guide member 12.

Description

Technical Field

[0001] The present invention relates to a split column connection guide jig for guiding an upper column to a lower column when connecting the split upper column to the lower column, and a method for connecting split columns using the split column connection guide jig.

Background Art

[0002] In recent years, columns such as utility poles are often transported in a split manner, such as an upper column and a lower column, from the perspective of length limitations during truck transportation, and are connected on-site. Such split columns (also referred to as spliced columns) are often used. As a connection method for such split columns, there are a flange method in which metal flange portions are provided at both the lower end of the upper column and the upper end of the lower column and joined by bolts and nuts, and a fitting method in which the upper end of the lower column or the lower end of the upper column is fitted into a fitting recess provided at the lower end of the upper column or the upper end of the lower column. As such a split column erection device, for example, a first jig is fixed to a lower column, a second jig is rotatably attached to the first jig, a wire wound by a winding means is wound around a first pulley and a second pulley, one end of the wire is fixed to the second jig and wound by the winding means, so that the second jig rotates with respect to the first jig. Thereafter, one end of the wire fixed to the second jig is fixed again to the upper column and the wire is wound by the winding means, so that a split column erection device for lifting the upper column and connecting it to the lower column has been proposed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the segmented column erection device described in Patent Document 1 uses multiple pulleys and wire winding means to lift the upper column and connect it to the lower column, allowing it to operate even in work environments unsuitable for a pole erection vehicle. Nevertheless, guiding the lower end of the lifted upper column to the upper end of the lower column requires human intervention, such as workers, which presents problems in terms of work efficiency and safety.

[0005] Therefore, the present invention has been made in view of these problems, and aims to provide a segmented column connection guide jig and a segmented column connection method that can guide the upper end of the lower column to the lower end of the upper column without the need for human intervention by workers or other personnel. [Means for solving the problem]

[0006] To solve the above problems, the divided column connection guide jig according to the present invention is characterized by comprising: a guide mounting member that is detachably attached to the lower end of the upper column or the upper end of the lower column constituting the divided column; and a guide member provided on the guide mounting member and having a guide portion that abuts against the upper end of the lower column or the lower end of the upper column to which the connection is to be made, and guides the connection between the lower end of the upper column and the upper end of the lower column. Furthermore, in the segmented column connecting guide jig according to the present invention, the guide mounting member is attached to the lower end of the upper column, and the guide member is fixed to the guide mounting member and has a main guide member having a main guide-side guide portion that slopes from the outside to the inside of the guide mounting member, and an auxiliary guide member that is slidably provided on the main guide member and has an auxiliary guide-side guide portion that slopes from the outside to the inside of the guide mounting member, and the auxiliary guide member slides downward relative to the main guide member and protrudes below the main guide member. Furthermore, the segmented column connecting guide jig according to the present invention is characterized in that the vertical length of the auxiliary guide member is greater than the vertical length of the main guide member, the main guide member is provided with a slide-guiding projection that guides the vertical sliding of the auxiliary guide member, and the auxiliary guide member is provided with an elongated hole for auxiliary guide sliding that guides the slide-guiding projection of the main guide member. Furthermore, the segmented column connecting guide jig according to the present invention is also characterized in that the inclination angle of the main guide side guide portion of the main guide member is greater than the inclination angle of the auxiliary guide side guide portion of the auxiliary guide member. Furthermore, the segmented column connecting guide jig according to the present invention is also characterized in that the auxiliary guide member is provided on the main guide member such that when the auxiliary guide member is slid up to its maximum extent relative to the main guide member, the height of the lower end of the auxiliary guide member and the height of the lower end of the main guide member are substantially the same. Furthermore, in the segmented column connecting guide jig according to the present invention, the auxiliary guide member is provided with a restraining member engagement portion into which an auxiliary guide restraining member engages, which restrains the auxiliary guide member in a suspended state relative to the main guide member. The auxiliary guide member is also characterized in that, when the auxiliary guide restraining member that was engaged with the restraining member engagement portion becomes disengaged, the auxiliary guide member slides relative to the main guide member due to its own weight. Furthermore, the split column connecting guide jig according to the present invention is characterized in that the main guide member and the auxiliary guide member each have a back plate portion and a pair of side plate portions that bend and extend from both sides of the back plate portion, and the angle of the side plate portion of the auxiliary guide member with respect to the back plate portion is formed to be smaller than the angle of the side plate portion of the main guide member with respect to the back plate portion, and when the auxiliary guide member is slidably placed on the outside of the main guide member, a space is provided between the back plate portion of the main guide member and the back plate portion of the auxiliary guide member. Furthermore, the method for connecting segmented columns according to the present invention is a method for connecting segmented columns using a segmented column connecting guide jig, which includes a guide mounting member attached around the lower end of the upper column, a main guide member fixed to the guide mounting member and having a main guide-side guide portion that guides the upper end of the lower column to the lower end of the upper column, and an auxiliary guide member that slides vertically relative to the main guide member, protruding below the main guide member, and is provided with an auxiliary guide-side guide portion that guides the upper end of the lower column to the main guide-side guide portion of the main guide member, and an auxiliary guide restraint member engaging portion that engages with the auxiliary guide restraint member, wherein when the upper column is on the ground, the segmented column connecting jig is attached to the lower end of the upper column in advance. In the guide jig, with the auxiliary guide members raised relative to the main guide member, the auxiliary guide restraint members are engaged with the restraint member engagement portions of each auxiliary guide member to restrain the auxiliary guide members to the main guide member. When the upper column is lifted and floats above the ground, the auxiliary guide restraint members that were engaged with the restraint member engagement portions of the auxiliary guide members are released, causing the auxiliary guide members to descend relative to the main guide member. The auxiliary guide side guide portion of the lowered auxiliary guide member guides the upper end of the lower column to the main guide side guide portion of the main guide member, and the main guide side guide portion of the main guide member guides it to the lower end of the upper column. Furthermore, the method for connecting divided columns according to the present invention is characterized in that a plurality of main guide members are provided around the outer circumferential surface of the lower end of the upper column at predetermined intervals relative to the guide mounting member, and the auxiliary guide members are provided so as to be slidable in the vertical direction on the plurality of main guide members provided around the outer circumferential surface of the lower end of the upper column. Furthermore, the method for connecting segmented columns according to the present invention is characterized in that a plurality of main guide members are provided around the outer circumferential surface of the lower end of the upper column at predetermined intervals relative to the guide mounting member, while the auxiliary guide members are provided so as to be slidable in the vertical direction only on the main guide members provided on half of the outer circumferential surface of the lower end of the upper column. [Effects of the Invention]

[0007] The segmented column connection guide jig according to the present invention comprises a guide mounting member that is detachably attached to the lower end of the upper column or the upper end of the lower column constituting the segmented column, and a guide member provided on the guide mounting member, the guide portion which is inclined from the outside to the inside of the segmented column and contacts the upper end of the lower column or the lower end of the upper column to guide the connection between the lower end of the upper column and the upper end of the lower column. Therefore, when the segmented column connection guide jig according to the present invention is attached, for example, to the lower end of an upper column, the guide portion of the guide member provided on the lower end of the upper column via a guide mounting member comes into contact with the upper end of the lower column, guiding the lower end of the upper column to the upper end of the lower column. This makes it possible to guide the lower end of the upper column, which has been lifted by a crane or the like, to the upper end of the lower column embedded in the ground, thereby improving work efficiency and safety. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the auxiliary guide member raised in the divided column connection guide jig of Embodiment 1 according to the present invention. [Figure 2] This is a perspective view showing the state in which the auxiliary guide member of the segmented column connecting guide jig according to Embodiment 1 of the present invention is lowered. [Figure 3] (a) and (b) are a plan view and a bottom view of the divided column connecting guide jig according to Embodiment 1 of the present invention, respectively. [Figure 4] This is an enlarged view of section A in Figure 3(a). [Figure 5] (a) and (b) are front and right side views, respectively, of the divided column connecting guide jig of Embodiment 1 according to the present invention, with the auxiliary guide member raised. [Figure 6] (a) and (b) are a front view and a right side view, respectively, of the divided column connecting guide jig of Embodiment 1 according to the present invention, with the auxiliary guide member in a lowered state. [Figure 7] (a) and (b) are perspective views from the outside and from the inside of the band fitting and the main guide member joined to the band fitting, respectively, which constitute the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 8](a) and (b) are plan and bottom views, respectively, of the band fitting and the main guide member joined to the band fitting, which constitute the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 9] (a) to (c) are front view, rear view, and left side view of the band fitting and the main guide member joined to the band fitting, respectively, which constitute the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 10] (a) to (d) are plan view, front view, left side view, and bottom view of the main guide member constituting the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 11] (a) and (b) are rear views and cross-sectional views along line BB in Figure 11(a), respectively, of the main guide member constituting the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 12] This is a perspective view of an auxiliary guide member constituting a segmented column connecting guide jig according to Embodiment 1 of the present invention. [Figure 13] (a) to (c) are plan view, front view, and right side view of the auxiliary guide member constituting the divided column connecting guide jig of Embodiment 1 according to the present invention. [Figure 14] (a) to (e) are rear views of the auxiliary guide members constituting the divided column connecting guide jig of Embodiment 1 according to the present invention, and cross-sectional views along lines CC, DD, EE, and FF in Figure 14(a), respectively. [Figure 15] (a) and (b) are front and left side views of the main parts, respectively, showing the divided column connection guide jig of Embodiment 1 according to the present invention attached to the upper column which is placed on its side. [Figure 16] This is an explanatory diagram showing the upper part of an upper column, which is lying on its side, being lifted up to an angle of approximately 40 degrees relative to the ground, with the segmented column connection guide jig of Embodiment 1 of the present invention attached. [Figure 17] This is an explanatory diagram showing the upper part of an upper column, which is lying on its side, being lifted up to a nearly vertical position with the segmented column connection guide jig of Embodiment 1 of the present invention attached. [Figure 18]It is an explanatory diagram showing a state in which the upper column equipped with the split column connection guide jig of Embodiment 1 according to the present invention is lifted and floating from the ground. [Figure 19] It is an explanatory diagram showing a state in which after the upper column equipped with the split column connection guide jig of Embodiment 1 according to the present invention is floated in the air, the rubber band is removed and the auxiliary guide member is slid downward by its own weight. [Figure 20] It is an explanatory diagram showing a state in which after the upper column equipped with the split column connection guide jig of Embodiment 1 according to the present invention is floated in the air, the rubber band is removed and the auxiliary guide member is slid downward, and the fitting concave portion of the upper column is brought close to the upper part of the lower column. [Figure 21] It is an explanatory diagram showing a state in which the auxiliary guide side guide portion of the auxiliary guide member constituting the split column connection guide jig of Embodiment 1 according to the present invention abuts on the upper end portion of the lower column and guides the fitting concave portion at the lower end of the upper column to the upper end portion of the lower column. [Figure 22] (a) and (b) are explanatory diagrams showing a state in which the auxiliary guide side guide portion of the auxiliary guide member constituting the split column connection guide jig of Embodiment 1 according to the present invention abuts on the upper end portion of the lower column and guides the upper column (the upper column is omitted), and an enlarged view of the contact portion G. [Figure 23] It is an explanatory diagram showing a state in which the fitting concave portion of the upper column is guided to the upper end portion of the lower column by the main guide member constituting the split column connection guide jig of Embodiment 1 according to the present invention. [Figure 24] (a) and (b) are explanatory diagrams showing a state in which the main guide side guide portion of the main guide member constituting the split column connection guide jig of Embodiment 1 according to the present invention abuts on the upper end portion of the lower column and guides the upper column, and an enlarged view of the contact portion H. [Figure 25] It is an explanatory diagram showing a state in which the guide of the upper end portion of the lower column to the fitting concave portion of the upper column is completed using the split column connection guide jig of Embodiment 1 according to the present invention. [Figure 26] It is an explanatory diagram showing a state in which the upper end portion of the lower column is inserted into and fitted into the fitting concave portion of the upper column using the split column connection guide jig of Embodiment 1 according to the present invention. [Figure 27]This is a perspective view showing a modified example of the segmented column connecting guide jig according to Embodiment 1 of the present invention. [Figure 28] This is a perspective view showing the state in which the auxiliary guide member of the divided column connecting guide jig according to Embodiment 2 of the present invention is lowered. [Figure 29] (a) and (b) are front views of the divided column connecting guide jig of Embodiment 2 according to the present invention, with the auxiliary guide member raised and with the auxiliary guide member lowered, respectively. [Figure 30] (a) and (b) are plan views and enlarged views of portion I in Figure 30(a), respectively, of the divided column connecting guide jig according to Embodiment 2 of the present invention. [Figure 31] (a) and (b) are perspective views from the outside and from the inside of the band fitting and the main guide member joined to the band fitting, respectively, which constitute the divided column connecting guide jig of Embodiment 2 according to the present invention. [Figure 32] (a) and (b) are plan and bottom views, respectively, of the band fitting and the main guide member joined to the band fitting, which constitute the divided column connecting guide jig of Embodiment 2 according to the present invention. [Figure 33] (a) and (b) are front and rear views, respectively, of the band fitting and the main guide member joined to the band fitting, which constitute the divided column connecting guide jig of Embodiment 2 according to the present invention. [Figure 34] (a) to (c) are enlarged views of the J portion in Figure 1, and enlarged views showing the state when fastened and when detached using the T-shaped fastening bolts that constitute the divided column connection guide jig of Embodiment 2 according to the present invention. [Figure 35] (a) and (b) are perspective views of the main guide member constituting the divided column connecting guide jig of Embodiment 2 according to the present invention. [Figure 36] (a) to (e) are plan view, front view, right side view, rear view, and bottom view of the main guide member constituting the divided column connecting guide jig of Embodiment 2 according to the present invention. [Figure 37] This is a perspective view of an auxiliary guide member constituting a segmented column connecting guide jig according to Embodiment 2 of the present invention. [Figure 38](a) to (e) are plan view, front view, left side view, rear view, and cross-sectional view along the KK line in Figure 38(b), respectively, of the auxiliary guide member constituting the divided column connecting guide jig of Embodiment 1 according to the present invention. [Modes for carrying out the invention]

[0009] Hereinafter, embodiments of the segmented column connection guide jig and the segmented column connection method using the segmented column connection guide jig according to the present invention will be described with reference to the drawings. It should be noted that the embodiments described below are merely examples of the present invention, and the present invention is not limited thereto; it can be modified as appropriate within the scope of the technical concept of the present invention.

[0010] Embodiment 1. <Configuration of the divided column connection guide jig 1 in Embodiment 1> The divided column connection guide jig 1 of Embodiment 1 of the present invention is a jig used to connect an upper column 21 and a lower column 22 by fitting the upper end portion 22a of the lower column 22 into a fitting recess 21b provided at the lower end portion of the upper column 21 which constitutes a divided column (joint column), as shown in Figures 15 to 26 described later. As shown in Figures 1 to 4, it has a guide mounting member 11 and a plurality of main guide members 12 and auxiliary guide members 13 (for example, eight in this Embodiment 1), and a rubber band 14 or the like is used as an auxiliary guide restraint member for the auxiliary guide member 13.

[0011] Furthermore, the upper column 21 and lower column 22 that constitute the segmented column (joint column) may be concrete columns or steel pipe columns, and there is no particular restriction on the material. In addition, the fitting recess 21b provided at the lower end of the upper column 21 may be a fitting recess provided in the upper column 21 itself, for example, if the upper column 21 is a steel pipe column, the hollow part in the center may be used, or if the upper column 21 is a concrete column with a core, a steel pipe for joining the lower column may be provided at the lower end of the upper column 21, and the hollow part in the center of that joining steel pipe may be used as the fitting recess 21a.

[0012] (Guide mounting member 11) The guide mounting member 11 is a member for attaching the main guide member 12 and the auxiliary guide member 13, which are guide members, to the upper column 21. It is detachably attached to the outer circumferential surface of the lower end of the upper column 21 and has a pair of band fittings 11a, 11a that are fastened and fixed to the outer circumferential surface of the upper column 21 by fastening bolts 11b and nuts 11c, etc., as shown in Figures 1 to 9, and has a number of handles 11d, etc. (here, for example, two for each band fitting 11a) that are fixed to the outer surface of each of the pair of band fittings 11a, 11a by welding or the like and are used for suspending a rope when removing the divided column connection guide jig 1 from the upper column 21.

[0013] Each pair of band fittings 11a, 11a consists of a band fitting body 11a1 having a predetermined width W1 in the vertical direction (see Figure 9(a)) as shown in Figures 7 to 9, etc., and having a nearly semicircular arc or curved surface in plan view; band fixing pieces 11a2 provided at both ends of the band fitting body 11a1, each having a rectangular bolt hole 11a21 through which the shaft portion of a fastening bolt 11b, which is a square-headed bolt, passes; and reinforcing pieces 11a3, 11a3, etc., provided between the band fitting body 11a1 and the band fixing pieces 11a2 by welding or the like to reinforce them, with four main guide members 12 welded or the like to the outside of each band fitting body 11a1.

[0014] (Main guide member 12) As shown in Figures 10 and 11, the main guide member 12 has a back plate portion 12a and side plate portions 12b, 12b that extend outwards from both sides of the back plate portion 12a. The back plate portion 12a is provided with two bolt holes 12a1 through which the shafts of two guide bolts 12c, which are sliding guide projections that guide the auxiliary guide member 12 to slide vertically, pass.

[0015] Furthermore, as shown in Figure 4, a spacing nut 12d is provided between the main guide member 12 and the auxiliary guide member 13 to eliminate looseness in the guide bolt 12c caused by tightening the guide bolt 12c. The shaft portion 12c1 of the guide bolt 12c is passed through the bolt hole 12a1 of the main guide member 12, the spacing nut 12d, and the elongated hole 13a1 for auxiliary guide sliding of the auxiliary guide member 13, which will be described later. On the outside of the auxiliary guide member 13, the auxiliary guide member 13 is fastened to the main guide member 12 by two fastening nuts 12f, 12f via a collar 12e made of resin or the like, allowing it to slide vertically due to its own weight.

[0016] The side plate portions 12b, 12b have band fitting joint portions 12b1, 12b1 which are joined to the outer surface of the respective band fitting bodies 11a1, 11a1 of the band fittings 11a, 11a by welding or the like, and main guide side guide portions 12b2, 12b2 which are inclined linearly from the outside to the inside of the band fitting bodies 11a1, 11a1 and guide the upper end portion 22a of the lower column 22 from the outside of the upper column 21 toward the fitting recess 21a.

[0017] Here, the length L1 of the band fitting joint 12b1 (see Figure 11(b)) is ensured to be greater than or equal to the predetermined width W1 of the band fittings 11a, 11a (see Figure 9(a)). Therefore, the length L2 of the main guide member 12 (see Figure 11(b)) is greater than the predetermined width W1 of the band fittings 11a, 11a (see Figure 9(a)), and the main guide side guide portion 12b2 protrudes from the band fittings 11a, 11a.

[0018] Furthermore, the upper end corner portion 12b21 of the main guide-side inclined guide, which is the upper end of the main guide-side guide portion 12b2, is formed to extend to the imaginary line VL that indicates the line on the inner surface of the fitting recess 21a of the upper column 21, as shown in Figure 4.

[0019] As a result, as shown in an enlarged view in Figure 4, the lower end of the main guide side guide portion 12b2, which is the curved lower end portion 12b22 of the main guide side inclined guide (see Figures 10 and 11, etc.), is located outside the band fitting joint portions 12b1, 12b1, that is, on the back plate portion 12a side, while the upper end of the main guide side guide portion 12b2, which is the upper end portion 12b21 of the main guide side inclined guide, is formed to protrude inward from the band fitting joint portions 12b1, 12b1.

[0020] (Auxiliary guide member 13) The auxiliary guide member 13 is formed separately from the main guide member 12 and is mounted on the outside of the main guide member 12 so that it can move up and down, that is, slide vertically. It is a member that guides the upper end 22a of the lower column 22 to the main guide side guide portion 12b2 of the main guide member 12. As shown in an enlarged view in Figure 4, a space S is formed between the auxiliary guide member 13 and the main guide member 12 by interposing a spacing nut 12d between the auxiliary guide member 13 and the main guide member 12, and the auxiliary guide member 13 is configured to slide relative to the main guide member 12 due to its own weight.

[0021] As shown in Figures 12 to 14, the auxiliary guide member 13 has a back plate portion 13a and side plate portions 13b, 13b that extend outwards from both sides of the back plate portion 13a, and the side plate portions 13b, 13b are formed in a U-shape with the tip side widening.

[0022] Above the back plate portion 13a and the side plate portions 13b, 13b, there is a rubber band engagement hole portion 13c, which is a restraint member engagement portion into which the rubber band 14, which is an auxiliary guide restraint member, engages.

[0023] The back plate portion 13a has an elongated hole 13a1 for an auxiliary guide slide that guides the vertical sliding of the auxiliary guide member 13 relative to the main guide member 12. The shafts of two guide bolts 12c, 12c, which are slide guide protrusions provided on the main guide member 12, pass through the back plate portion 13a below the rubber band engagement hole portion 13c.

[0024] As will be described later, this elongated hole 13a1 for the auxiliary guide slide is formed to extend from near the bottom of the auxiliary guide side guide portions 13b2, 13b2 of the side plate portions 13b, 13b to the vertical portion 13b1 and to the vicinity of the rubber band engagement hole portion 13c.

[0025] Each of the side plate portions 13b, 13b is provided with a rubber band engagement hole portion 13c at its upper end that is continuous with the back plate portion 13a. The side plate portion 13b also has a vertical portion 13b1 that extends from its upper end parallel to the back plate portion 13a for a length L4 that is approximately 1 / 3 of the length L3 of the auxiliary guide member 13, and an auxiliary guide side guide portion 13b2 that gradually slopes linearly toward the back plate portion 13a at a predetermined angle from the lower end of the vertical portion 13b1 to a length L5 that is approximately 2 / 3 of the length L2 of the auxiliary guide member 13.

[0026] Therefore, the length L4 of the vertical portion 13b1 is approximately 1 / 3 of the length L3 of the auxiliary guide member 13. In addition, the auxiliary guide side guide portions 13b2, 13b2 of the side plate portions 13b, 13b and the elongated hole 13a1 for the auxiliary guide slide provided in the back plate portion 13a overlap considerably in the vertical direction.

[0027] Here, the auxiliary guide member 13 is attached to the back plate portion 12a of the main guide member 12 via a spacing nut 12d without being fastened with two guide bolts 12c, so that it descends from the main guide member 12 by its own weight. Furthermore, the elongated hole 13a1 for the auxiliary guide slide provided in the back plate portion 13a of the auxiliary guide member 13 extends from the auxiliary guide side guide portions 13b2, 13b2 to the vertical portion 13b1 in its side plate portions 13b, 13b.

[0028] Therefore, as shown in Figure 2, even when the auxiliary guide member 13 is in its lowest position relative to the main guide member 12 due to its own weight, that is, when it is guiding the lower column 12, the auxiliary guide member 13 must not be fixed to or fastened to the main guide member 12. Thus, as shown in Figure 2, in the standby position where the auxiliary guide member 13 is raised to its highest position relative to the main guide member 12, the two guide bolts 12c become loose, and the upper ends of the auxiliary guide members 13 approach each other towards the centers of the pair of band fittings 11a, 11a of the main guide member 12. If the pair of band fittings 11a, 11a are attached to the upper column 21, the upper ends of each auxiliary guide member 13 should be able to contact the outer surface of the upper column 21.

[0029] Furthermore, as shown in Figure 4, the auxiliary guide member 13 is formed with a smaller angle of expansion relative to the back plate portion 13a than the angle of expansion of the side plate portions 12b, 12b relative to the back plate portion 13a in the main guide member 12.

[0030] As a result, even when the auxiliary guide member 13 is slidably superimposed on the outside of the main guide member 12 as shown in Figure 4, etc., and the gap between the inner surfaces of the side plate portions 13b, 13b of the auxiliary guide member 13 and the outer surfaces of the side plate portions 12b, 12b of the main guide member 12 is brought as close as possible to 0, and the auxiliary guide member 13 is configured not to shift laterally relative to the main guide member 12, a space S is reliably formed between the back plate portion 12a of the main guide member 12 and the back plate portion 13a of the auxiliary guide member 13, reducing the number of contact points between the main guide member 12 and the auxiliary guide member 13, and thus reducing their frictional resistance, the auxiliary guide member 13 becomes easier to slide relative to the main guide member 12 due to its own weight, and the auxiliary guide member 13 can reliably guide the upper end portion 22a of the lower column 22 to the main guide side guide portion 12b2 of the main guide member 12.

[0031] (14 rubber bands) The rubber band 14 engages with the rubber band engagement hole 13c of each auxiliary guide member 13 as an auxiliary guide restraint member, restraining each auxiliary guide member 13 from sliding downward relative to the main guide member 12 due to its own weight. Therefore, as long as it can restrain each auxiliary guide member 13, it is sufficient to use a simple string (rope) or the like instead of the rubber band 14.

[0032] <Method for connecting segmented columns using the segmented column connection guide jig 1 of Embodiment 1> Next, a method for connecting segmented columns using the segmented column connection guide jig 1 of Embodiment 1 of the present invention, configured as described above, will be explained. Note that the segmented column connection guide jig 1 of Embodiment 1 is a jig that is attached to the upper column 21 to guide the connection with the lower column 22; therefore, the lower column 22 is assumed to be erected in the ground or elsewhere beforehand. Furthermore, the segmented column connection guide jig 1 of Embodiment 1 is assumed to be attached to the lower end of the upper column 21.

[0033] First, as shown in Figures 15(a) and (b), the upper column 21 is placed on the ground, such as a road, with the scaffolding fittings 21b etc. elevated from the ground via the column stand 41 etc.

[0034] Furthermore, when the upper column 21 is laid on its side as shown in Figures 15(a) and (b), and when the upper end of the upper column 21 is slightly lifted, as will be described next, a sleeper 42 or the like, approximately 100 mm high, is inserted between the pair of band fittings 11a, 11a of the main guide member 12 and the ground, avoiding the main guide member 12 and the auxiliary guide member 13 of the divided column connecting guide jig 1 of Embodiment 1, so that they do not hit the ground and deform.

[0035] Alternatively, the segmented column connection guide jig 1 of Embodiment 1 may be attached to the outer circumferential surface of the lower end of the upper column 11 before tilting the upper column 21 to its side, or the segmented column connection guide jig 1 of Embodiment 1 may be attached to the outer circumferential surface of the lower end of the upper column 11 after tilting the upper column 21 to its side and lifting it off the ground, and then placing it on a column stand 41 or the like, as shown in Figures 15(a) and (b).

[0036] At that time, when the upper column 21 is raised to a near-vertical state as shown in Figures 17 and 18 described later, the eight auxiliary slide bodies 12 are kept in a standby state in which the eight auxiliary guide members 13 are raised to their maximum relative position relative to the main guide member 12, so that they do not automatically drop down. The rubber bands 14 are engaged with the rubber band engagement holes 13c of each of the eight auxiliary guide members 13, so that the upper end faces of the side plate portions 13b, 13b of each auxiliary guide member 13 are in contact with the outer circumferential surface of the upper column 11. The eight auxiliary guide members 13 are kept in a standby state so that when the upper column 21 is raised to a near-vertical state as shown in Figures 17 and 18 described later, the eight auxiliary slide bodies 12 are kept in a standby state so that they do not automatically drop down.

[0037] Next, as shown in Figures 15(a) and (b), the upper part of the upper column 21, which is lying on its side, is lifted by a crane (not shown), and as shown in Figure 16, the upper column 21, to which the divided column connection guide jig 1 of Embodiment 1 is attached to the lower end, is raised. Then, as shown in Figure 17, the upper part of the upper column 21 is lifted by a crane (not shown) until it approaches a vertical position.

[0038] Furthermore, in the state shown in Figures 16 and 17, the pair of band fittings 11a, 11a of the guide mounting member 11 attached to the lower end of the upper column 21 or the lower part of the upper column 21 contact the upper surface of the sleeper 42, and the lower ends of the main guide member 13 and auxiliary guide member 14 do not touch the ground due to the height of the sleeper 42.

[0039] Therefore, by inserting a sleeper 42 into the lower end of the upper column 21 and lifting the upper column 21, the lower ends of the main guide member 13 and the auxiliary guide member 14 will no longer come into contact with the ground, thus reliably preventing deformation of the main guide member 13 and the auxiliary guide member 14.

[0040] Furthermore, when the auxiliary guide member 14 is raised above the main guide member 13, as shown in Figures 16 and 17, the heights of the lower ends of the main guide member 13 and the auxiliary guide member 14 are almost identical. This improves rigidity compared to when the heights of the lower ends of the main guide member 13 and the auxiliary guide member 14 are misaligned, and deformation of the main guide member 13 and the auxiliary guide member 14 can be reliably prevented even when the lower ends of the main guide member 13 and the auxiliary guide member 14 come into contact with the upper surface of the sleeper 42.

[0041] Then, when the upper part of the upper column 21 is lifted by a crane (not shown), as shown in Figure 18, the lower end of the upper column 21 and the pair of band fittings 11a, 11a of the main guide member 12 attached to the lower part of the upper column 21 separate from the sleeper 42, and the upper column 21 rises into the air.

[0042] As shown in Figure 18, when the pair of band fittings 11a, 11a of the main guide member 12 attached to the lower end of the upper column 21 and the lower part of the upper column 21 detach from the sleeper 42 and rise into the air, there is no longer a need to consider deformation such as bending or breaking caused by the auxiliary guide member 13 hitting the ground or sleeper 42, etc. Therefore, as shown in Figure 19, workers pull the rubber band connecting rope 15 connected to the rubber band 14 to remove or cut the rubber band 14 that was engaged with the rubber band engagement holes 13c of each of the eight auxiliary guide members 13, thereby freeing each of the eight auxiliary guide members 13 from the rubber band 14.

[0043] As a result, each of the eight auxiliary guide members 13 becomes free to slide relative to the main guide member 12. Therefore, as shown in Figure 19, when the upper column 21 is close to vertical, each of the eight auxiliary guide members 13 slides downward by the length of the auxiliary guide slide elongated hole 13a1 of the auxiliary guide member 13 due to its own weight.

[0044] Then, in the standby state with the rubber band 14, that is, with the auxiliary guide members 13 raised to their maximum height, as shown in Figure 18, the lower end of each auxiliary guide member 13 and the lower end of the main guide member 12 were at approximately the same height. However, as each auxiliary guide member 13 slides downward relative to the main guide member 12 due to its own weight, the lower end of each auxiliary guide member 13 protrudes more than the lower end of the main guide member 12, and the main guide side guide portion 12b2 of the main guide member 12 and the auxiliary guide side guide portions 13b2, 13b2 of the side plate portions 13b, 13b of the auxiliary guide members 13 become continuous.

[0045] Therefore, as shown in Figure 20, the worker attaches the divided column connection guide jig 1 of Embodiment 1, in which the eight auxiliary guide members 13 are slid downward relative to the main guide member 12, to its lower end, and pulls the upper column 21, which has been lifted by a crane (not shown), with a rope (not shown) or the like to bring it close to the upper end 22a of the lower column 22 erected on the ground. As shown in Figure 21, the auxiliary guide side guide portions 13b2 of the eight auxiliary guide members 13 that have slid downward relative to the main guide member 12 of the divided column connection guide jig 1 of Embodiment 1, contact the upper end 22a of the lower column 22, and lowers the upper column 21 while maintaining that contact state.

[0046] In other words, when the upper end portion 22a of the lower column 22 moves into the space surrounded by the eight auxiliary guide members 13, one or more auxiliary guide-side guide portions 13b2 of the eight auxiliary guide members 13 come into contact with the upper end portion of the lower column 22, as shown in Figures 21 and 22(b). As the upper column 21 descends while maintaining this contact, the lower end portion of the upper column 21 to which the divided column connection guide jig 1 of Embodiment 1 is attached is guided by the auxiliary guide-side guide portions 13b2 of the auxiliary guide members 13, and then guided by the main guide-side guide portion 12b2 of the main guide member 12 to approach the upper end portion 22a of the lower column 22.

[0047] Figures 24(a) and (b) show the state in which the upper end portion 22a of the lower column 22 is guided by one or more auxiliary guide side guide portions 13b2 of each of the eight auxiliary guide members 13 of the divided column connecting guide jig 1 of Embodiment 1, and is in contact with the main guide side guide portions 12b2, 12b2 provided on the side plate portions 13b, 13b of each of the eight main guide members 12.

[0048] Therefore, the upper end portion 22a of the lower column 22 is guided by the main guide side guide portions 12b2, 12b2 of one or more of the eight main guide members 12, and is inserted into the fitting recess 21a provided at the lower end of the upper column 21 as shown in Figure 25, and finally, as shown in Figure 26, it is fitted into the fitting recess 21a, completing the installation of the upper column 21 on the lower column 22.

[0049] Once the installation of the upper column 21 on the lower column 22 is complete, the split column connection guide jig 1 of Embodiment 1 (not shown) is removed from the upper column 21, and if welding, bolting, or other joining processes are required for the connection portion (joint portion) between the lower column 22 and the upper column 21, those joining processes are carried out.

[0050] Furthermore, as mentioned above, when adopting the interlocking method for the segmented columns, the interlocking recess 21a of the upper column 21 is securely fitted into the upper end of the lower column 22 by the weight of the upper column 21, so bolting or welding is basically unnecessary.

[0051] <Summary of the segmented column connection guide jig and segmented column connection method according to Embodiment 1 of the present invention> As described above, the divided column connection guide jig 1 of Embodiment 1 of the present invention includes a guide mounting member 11 that is detachably attached to the outer peripheral surface of the lower end of the upper column 21, and a main guide member 12 and an auxiliary guide member 13 provided on the guide mounting member 11, which guide the upper end 22a of the lower column 22 to the lower end of the upper column 21 with a guide-side guide portion 12b2 and an auxiliary guide-side guide portion 13b2.

[0052] Therefore, by attaching the divided column connection guide jig 1 of Embodiment 1 to the outer peripheral surface of the lower end of the upper column 21, the main guide side guide portion 12b2 of the main guide member 12 and the auxiliary guide side guide portion 13b2 of the auxiliary guide member 13 can guide the upper end portion 22a of the lower column 22 into the fitting recess 21a of the lower end of the upper column 21 without the need for human intervention by workers, thereby improving work efficiency and safety.

[0053] Furthermore, in the divided column connecting guide jig 1 of Embodiment 1 of the present invention, the auxiliary guide member 13 is provided independently on the outside of the main guide member 12, that is, as a separate member, and the auxiliary guide member 13 is configured to slide in the longitudinal direction of the main guide member 12 through the elongated hole 13a1 for auxiliary guide sliding, thereby protruding below the main guide member 12.

[0054] Therefore, according to the divided column connection guide jig 1 of Embodiment 1, when the upper column 21 is lying on its side, or when the upper column 21 is lying on its side and is tilted upright, and the lower column 22 is not being guided, the auxiliary guide member 13 is raised relative to the main guide member 12. When the upper column 21 is lifted upright by a crane or the like, the auxiliary guide member 13 slides relative to the main guide member 12 through the auxiliary guide slide elongated hole 13a1, causing it to protrude below the main guide member 12. This allows the upper end portion 22a of the lower column 22 to be first guided by the auxiliary guide side guide portion 13b2 of the auxiliary guide member 13, and then guided to the fitting recess 21a provided at the lower end of the upper column 21 by the main guide side guide portion 12b2.

[0055] As a result, when not in use, such as during storage, the main guide member 12 and the auxiliary guide member 13, which are guide members, can be stacked to make them compact for storage. This effectively prevents deformation such as bending or breaking of the auxiliary guide member 13 when not in use, making it possible to maintain the quality and function of the segmented column connection guide jig 1 for a long period of time, and thus improving workability and safety.

[0056] Furthermore, in the divided column connecting guide jig 1 of Embodiment 1, the vertical length of the auxiliary guide member 13 is made larger than the vertical length of the main guide member 12, and the main guide member 12 is provided with two guide bolts 12c as slide guide projections that guide the vertical sliding of the auxiliary guide member 13, while the auxiliary guide member 13 is provided with an elongated hole 13a1 for auxiliary guide sliding that guides the two guide bolts 12c which are slide guide projections of the main guide member 12.

[0057] Therefore, the auxiliary guide member 13 can slide relative to the main guide member 12 through the elongated hole 13a1 for auxiliary guide sliding, allowing it to protrude significantly below the main guide member 12. This makes it possible to more reliably guide the upper end 22a of the lower column 22 first with the auxiliary guide side guide portion 13b2 of the auxiliary guide member 13 to the main guide side guide portion 12b2 of the main guide member 12, thereby improving work efficiency and safety.

[0058] Furthermore, in the divided column connection guide jig 1 of Embodiment 1 according to the present invention, the inclination angle of the main guide side guide portion 12b2 of the main guide member 12 with respect to the longitudinal direction of the upper column 21 is formed to be greater than the inclination angle of the auxiliary guide side guide portion 13b2 of the auxiliary guide member 13 with respect to the same direction.

[0059] Therefore, according to the divided column connection guide jig 1 of Embodiment 1, the upper end portion 22a of the lower column 22 is first guided to the main guide side guide portion 12b2 of the main guide member 12 by the auxiliary guide member 13, which has a small inclination angle with respect to the longitudinal direction of the upper column 21, and then the upper end portion 22a of the lower column 22 is guided to the fitting recess 21a of the upper column 21 by the main guide side guide portion 12b2 of the main guide member 12. Thus, the upper end portion 22a of the lower column 22 can be efficiently guided to the fitting recess 21a of the upper column 21, further improving workability and safety.

[0060] Furthermore, in the divided column connecting guide jig 1 of Embodiment 1, when the auxiliary guide member 13 is slid up to its maximum extent relative to the main guide member 12, the height of the lower end of the auxiliary guide member 13 and the height of the lower end of the main guide member 12 are configured to be approximately the same.

[0061] Therefore, according to the divided column connection guide jig 1 of Embodiment 1, when the upper column 21 is placed horizontally, or when the horizontally placed upper column 21 is raised at an angle, the auxiliary guide member 13 is slid relative to the main guide member 12 and raised to its maximum extent. As a result, even if the lower end of the auxiliary guide member 13 hits the ground, the height of the lower end of the auxiliary guide member 13 and the height of the lower end of the main guide member 12 overlap almost perfectly, doubling the thickness and improving strength. This makes it possible to more efficiently prevent deformation such as bending or breaking of the auxiliary guide member 13. As a result, the quality and function of the divided column connection guide jig 1 can be maintained for an even longer period, improving workability and safety in this respect as well.

[0062] Furthermore, in the divided column connection guide jig 1 of Embodiment 1 of the present invention, the auxiliary guide member 13 is provided with a rubber band engagement hole 13c, which is a restraining member engagement portion into which a rubber band 14, acting as an auxiliary guide restraining member, engages to restrain each of the eight auxiliary guide members 13 in a suspended state relative to each of the eight main guide members 12. When the rubber band 14 is released from the rubber band engagement hole 13c, the auxiliary guide member 13 slides relative to the main guide member 12, causing it to protrude below the main guide member 12 and guide the upper end portion 22a of the lower column 22 to the lower end portion of the upper column 21.

[0063] Therefore, according to the divided column connection guide jig 1 of Embodiment 1, when the upper column 21, to which the divided column connection guide jig 1 is attached in a state where each auxiliary guide member 13 is restrained to each main guide member 12 by the lifting rubber band 14, is lifted high with a crane or the like to bring it close to a vertical state, the rubber band 14 can be released by pulling the rubber band connecting rope 15 connected to the rubber band 14 from the ground, or by cutting the rubber band 14, thereby releasing it from the rubber band engagement hole 13c of each auxiliary guide member 13. This allows the auxiliary guide member 13 to slide easily relative to the main guide member 12 and protrude below the main guide member 12, thus improving workability and safety.

[0064] Furthermore, in the divided column connecting guide jig 1 of Embodiment 1 of the present invention, the angle of the side plate portions 13b, 13b of the auxiliary guide member 13 with respect to the back plate portion 13a is formed to be smaller than the angle of the side plate portions 12b, 12b of the main guide member 12 with respect to the back plate portion 13a, so that when the auxiliary guide member 13 is slidably stacked on the outside of the main guide member 12, a space S is reliably formed between the back plate portion 12a of the main guide member 12 and the back plate portion 13a of the auxiliary guide member 13, even if the spacing retaining nut 12d is omitted.

[0065] Therefore, the contact area between the main guide member 12 and the auxiliary guide member 13 becomes zero or extremely small, and even if a space S is secured between the back plate portion 12a of the main guide member 12 and the back plate portion 13a of the auxiliary guide member 13, the auxiliary guide member 13 will not easily shift relative to the main guide member 12. As a result, each auxiliary guide member 13 can reliably slide relative to each main guide member 12 by its own weight, and the auxiliary guide member 13, which is set to slide relative to the main guide member 12, can reliably guide the upper end portion 22a of the lower column 22 to the main guide side guide portion 12b2 of the main guide member 12. In this respect as well, workability and safety can be improved.

[0066] Furthermore, in the method for connecting segmented columns according to the present invention, when the upper column 21 is on the ground, a plurality of auxiliary guide members 13, which are previously attached to the outside of the main guide member 12 mounted on the lower end of the upper column 21, are raised, and a rubber band 14, which is an auxiliary guide restraint member, is engaged with the rubber band engagement hole 13c of each auxiliary guide member 13, thereby restraining the auxiliary guide members 13 in a suspended state relative to the main guide member 12. When the upper column 21 is lifted and raised above the ground to a high position, the rubber band 14 that was engaged with the rubber band engagement hole 13c of each auxiliary guide member 13 is released, allowing the auxiliary guide members 13 to descend relative to the main guide member 12. The plurality of auxiliary guide members 13 that have descended relative to the main guide member 12 guide the upper end 22a of the lower column 22 into the fitting recess 21a provided on the lower end of the upper column 21, and then fit it in place.

[0067] Therefore, even when the divided column connection guide jig 1 of Embodiment 1 is attached to the outer peripheral surface of the lower end of the upper column 21 and the upper column 21 is lifted high by a crane or the like, the auxiliary guide member 13 can be easily slid downward relative to the main guide member 12, thereby improving work efficiency and safety.

[0068] Furthermore, in the description of Embodiment 1 above, as shown in Figures 1 to 7, the segmented column connecting guide jig 1 was described as having a total of eight main guide members 12 fixed to each of the pair of band fittings 11a, 11a constituting the guide mounting member 11 by welding or the like at four locations, and auxiliary guide members 13 slidably provided on all of them. However, the present invention is not limited to this, and of course, as shown in Figure 27 of the segmented column connecting guide jig 1, auxiliary guide members 13 may be slidably provided only on the four main guide members 12 of one band fitting 11a, and the auxiliary guide members 13 may not be provided on the four main guide members 12 of the other band fitting 11a, or may be removed.

[0069] As shown in Figure 27, when a divided column connection guide jig 1 is attached to the lower end of the upper column 21, with an auxiliary guide member 13 provided only on the main guide member 12 of one band fitting 11a and the auxiliary guide member 13 omitted on the main guide member 12 of the other band fitting 11a, it becomes possible to move the upper column 21, which has been lifted by a crane or the like, laterally from the side without the auxiliary guide member 13, until the upper end of the column 22 hits the auxiliary guide member 13 on the opposite side. This eliminates the need to lift the upper column 21 with the divided column connection guide jig 1 attached in Embodiment 1 to a very high height, thus further improving work efficiency and safety.

[0070] In the description of Embodiment 1 above, the upper column 21 and lower column 22 constituting the divided column were described as being joined so that the upper end portion 22a of the lower column 22 fits into the fitting recess 21a of the lower end portion 21a of the divided column 21. However, the present invention is not limited to such divided columns (joint columns). It may also be applied to guide the joining of divided columns (joint columns) in which the lower end portion of the upper column 21 fits into a fitting recess provided on the upper end portion of the lower column 22. Furthermore, flanged joining fittings may be provided on the lower end portion of the upper column 21 and the upper end portion of the lower column 22, respectively, and used as a guide when joining flanged joint columns by fastening the flanges together with high-strength bolts or the like.

[0071] Furthermore, in the above embodiment 1, the segmented column connection guide jig 1 was attached to the lower end of the upper column 21 for explanation. However, the present invention is not limited to this, and the segmented column connection guide jig 1 can also be attached to the upper end 22a of the lower column 22, inverted in Figures 1, 2, 5, and 6, and the upper column 21 without the segmented column connection guide jig 1 attached can be lifted by a crane or the like and guided to the upper end 22a of the lower column 22. In this case, if the auxiliary guide member 13 is slid by its own weight, its tip will align with that of the main guide member 12. Therefore, if the auxiliary guide member 13 is to be effectively used to guide the upper column 21, it is advisable to fasten the spacing-holding nut 12d and fastening nut 12f, etc., which guide vertical sliding between the main guide member 12 and the auxiliary guide member 13, so that the auxiliary guide side guide portion 13b2 of the auxiliary guide member 13 protrudes upward more than the main guide side guide portion 12b2 of the main guide member 12.

[0072] Furthermore, in the above embodiment 1, the main guide side guide portion 12b2 and the auxiliary guide side guide portion 13b2 of the main guide member 12 and the auxiliary guide member 13 that constitute the divided column connection guide jig 1 were described as being inclined in a straight line, but the present invention is not limited to this, and of course the inclination may be curved as long as it is inclined in a way that can guide the upper column 21 and the lower column 22.

[0073] Embodiment 2. Next, the divided column connection guide jig 1' of Embodiment 2 according to the present invention will be described. Note that the divided column connection guide jig 1' of Embodiment 2 has the same basic configuration as the divided column connection guide jig 1 of Embodiment 1 described above, and the method of connecting divided columns using the divided column connection guide jig 1' is the same. Therefore, the same effects as the divided column connection guide jig 1 of Embodiment 1 and the connection method using it can be obtained. Accordingly, in describing the divided column connection guide jig 1' of Embodiment 2, the same configuration and effects as the divided column connection guide jig 1 of Embodiment 1 will be omitted from the description, and only the configuration and effects that differ from those of the divided column connection guide jig 1 of Embodiment 1 will be described.

[0074] Figure 28 is a perspective view showing the auxiliary guide member 13' in the lowered position in the divided column connection guide jig 1' of Embodiment 2 according to the present invention. Figures 29(a) and (b) are front views of the divided column connection guide jig 1' of Embodiment 2 according to the present invention with the auxiliary guide member 13' raised and lowered, respectively. Figures 30(a) and (b) are a plan view of the divided column connection guide jig 1' of Embodiment 2 according to the present invention and an enlarged view of portion I in Figure 30(a), respectively.

[0075] In the divided column connection guide jig 1' of Embodiment 2 according to the present invention, the overall configuration is the same as that of the divided column connection guide jig 1 of Embodiment 1, as shown in Figures 28 to 30, but the following three points are the main improvements.

[0076] (1) Improvement point 1 Improvement 1 of the divided column connection guide jig 1' of Embodiment 2 according to the present invention is, as shown in Figures 31(a), (b) and 33(a), (b), etc., the shape of the bolt hole 11a21' of one of the band fixing pieces 11a2' of the pair of band fittings 11a', 11a' that constitute the guide mounting member 11, and the use of a T-shaped head bolt 11b' as a fastening bolt that passes through the bolt hole 11a21' and tightens it, making it possible to attach and detach the band fittings 11a', 11a' from the upper column 21 without removing the nut 11c from the T-shaped head bolt 11b'. Furthermore, the bolt hole 11a21 of the other band fixing piece 11a2 of the pair of band fittings 11a', 11a' is the same square shape as the bolt holes 11a21, 11a21 of the band fixing pieces 11a2, 11a2 of the band fittings 11a, 11a of the divided column connection guide jig 1 of Embodiment 1, and a standard round-headed fastening bolt 11b is used to fix the other band fixing piece 11a2, similar to the divided column connection guide jig 1 of Embodiment 1.

[0077] Figures 31(a) and 31(b) are perspective views from the outside of the band fitting 11a' and the main guide member 12' joined to the band fitting 11a' that constitute the divided column connection guide jig 1' of Embodiment 2 according to the present invention, and perspective views from the inside of the band fitting 11a' and 31(b) respectively. Figures 32(a) and 32(b) are plan views and bottom views of the band fitting 11a' and 33(a) and 33(b) are front views and rear views of the band fitting 11a' and 33(b) respectively. Figures 34(a) to 34(c) are enlarged views of the J portion in Figure 28 and enlarged views showing the state when fastened and when detached by the T-shaped fastening bolt 11b' that constitutes the divided column connection guide jig 1' of Embodiment 2, respectively.

[0078] The band fittings 11a' constituting the divided column connection guide jig 1' of Embodiment 2 according to the present invention are members that attach the main guide member 12' and the auxiliary guide member 13', which are guide members of the divided column connection guide jig 1' of Embodiment 2, to the upper column 21, as shown in Figures 28 to 30. The band fittings 11a', 11a' are detachably attached to the outer circumferential surface of the lower end of the upper column 21 and are fastened and fixed to the outer circumferential surface of the upper column 21 by fastening bolts 11b and T-head fastening bolts 11b' and nuts 11c, etc., and each of the pair of band fittings 11a', 11a' has a plurality of handle portions 11d, etc., which are fixed to the outer surface of each of the band fittings 11a', 11a' by welding or the like.

[0079] Each pair of band fittings 11a', 11a' consists of a band fitting body 11a1' having a nearly semicircular arc or curved surface in plan view, as shown in Figures 31 to 34, etc., a band fixing piece 11a2 provided at both ends of the band fitting body 11a1' and having a rectangular bolt hole 11a21, the same as in Embodiment 1, through which the shaft portion of the fastening bolt 11b, which is a square-headed bolt, passes, a band fixing piece 11a2' having a rectangular bolt hole 11a21' through which the shaft portion of the T-shaped head fastening bolt 11b', which is a square-headed bolt, and the T-shaped bolt head 11b1' when parallel, passes, and reinforcing pieces 11a3, 11a3, etc., and four main guide members 12' are welded or otherwise provided on the outside of each band fitting body 11a1'.

[0080] In other words, unlike the band fitting 11a of the segmented column connecting guide jig 1 of Embodiment 1, which has band fixing pieces 11a2 with rectangular bolt holes 11a21 at both ends, the band fitting 11a' of Embodiment 2 has a band fixing piece 11a2' at one end that has a rectangular bolt hole 11a21' through which the shaft portion of the T-shaped fastening bolt 11b' and the T-shaped bolt head 11b1' pass when parallel, instead of a band fixing piece 11a2 with a rectangular bolt hole 11a21.

[0081] Therefore, according to the guide mounting member 11' of the divided column connection guide jig 1' of Embodiment 2, when fastening a pair of band fittings 11a', 11a' with the upper column 21, etc., the band fixing piece 11a2' at one end of the band fitting 11a' is fastened so that the T-shaped bolt head 11b1' of the T-shaped head fastening bolt 11b' is perpendicular to the rectangular bolt hole 11a21' of the band fixing piece 11a2', as shown in Figures 34(a) and (b). The band fixing piece 11a2 at the other end of the band fitting 11a' is fastened with a nut 11c by passing the shaft of the round-head fastening bolt 11b through its bolt hole 11a21, similar to Embodiment 1.

[0082] Furthermore, in the guide mounting member 11' of the divided column connection guide jig 1' of Embodiment 2, when attaching and detaching the pair of band fittings 11a', 11a' from the upper column 21, etc., as shown in Figure 34(c), the T-shaped bolt head 11b1' of the T-shaped head fastening bolt 11b' is rotated 90 degrees from the state shown in Figure 34(b) so that the T-shaped bolt head 11b1' of the T-shaped head fastening bolt 11b' is parallel to the rectangular bolt hole 11a21' of the band fixing piece 11a2'.

[0083] As a result, the bolt head 11b1' of the T-shaped head fastening bolt 11b' detaches from the band fitting 11a' without removing the nut 11c (see Figure 30(a)) from the T-shaped head fastening bolt 11b', and the pair of band fittings 11a', 11a' open, making it easier to attach and detach the divided column connection guide jig 1' of Embodiment 2 to the upper column 21, etc.

[0084] As a result, the split column connection guide jig 1' of Embodiment 2 can improve the workability of attaching and detaching the pair of band fittings 11a', 11a' compared to the split column connection guide jig 1 of Embodiment 1.

[0085] (2) Improvement point 2 The second improvement to the divided column connection guide jig 1' of Embodiment 2 according to the present invention is that the shape of the main guide member 12' has been improved from the main guide member 12 of Embodiment 1, so that the tip (lower end) of the main guide member 12' is less likely to deform when it comes into contact with the sleeper 42 or the ground when the upper column 21 to which the divided column connection guide jig 1' of Embodiment 2 is attached is lifted.

[0086] Figures 35(a) and (b) are perspective views of the main guide member 12' constituting the divided column connection guide jig 1' of Embodiment 2 according to the present invention, respectively, and Figures 36(a) to (e) are a plan view, front view, right side view, rear view, and bottom view of the main guide member 12' constituting the divided column connection guide jig 1' of Embodiment 2 according to the present invention, respectively.

[0087] The main guide member 12' constituting the divided column connection guide jig 1' of Embodiment 2 has a back plate portion 12a' and side plate portions 12b', 12b' that extend outward from both sides of the back plate portion 12a', as shown in Figures 35 and 36, etc., and the back plate portion 12a' is provided with two bolt holes 12a1' through which the shafts of two guide bolts 12c, which are sliding guide projections that guide the auxiliary guide member 12' so that it can slide in the vertical direction, pass.

[0088] In the main guide member 12' of Embodiment 2, the lower end of the back plate portion 12a' is extended downward compared to the back plate portion 12a of the main guide member 12 of Embodiment 1, and the extended portion is bent 90 degrees to the same side as the side plate portions 12b', 12b' to provide a folded-back reinforcement portion 12a2', thereby reinforcing the tip portion (lower end) of the main guide member 12'.

[0089] Furthermore, as shown in Figure 30(b), a spacing nut 12d is provided between the main guide member 12' and the auxiliary guide member 13' to eliminate looseness of the guide bolt 12c caused by tightening the guide bolt 12c. The shaft portion 12c1 of the guide bolt 12c is passed through the bolt hole 12a1' of the main guide member 12', the spacing nut 12d, and the auxiliary guide slide elongated hole 13a1' of the auxiliary guide member 13' (described later). The auxiliary guide member 13' is fastened to the outside of the auxiliary guide member 13' via a collar 12e made of resin or the like, using a fastening nut 12f so that it can slide vertically due to its own weight. In this embodiment 2, as shown in Figure 30(b), it is fastened with one fastening nut 12f. Therefore, the workability is improved compared to embodiment 1, in which the auxiliary guide member 13' is slidably fastened to the main guide member 12' with a double nut of two fastening nuts 12f, as shown in Figure 4.

[0090] Furthermore, the side plate portions 12b', 12b' have band fitting joint portions 12b1', 12b1' and main guide side guide portions 12b2', 12b2', similar to the side plate portions 12b, 12b of the main guide member 12 in Embodiment 1, as well as main guide side inclined guide upper end corner portions 12b21', 12b21'.

[0091] Therefore, when the split column connection guide jig 1' of Embodiment 2 is attached to the upper column 21, and the upper column 21, which is lying on its side as shown in Figure 15, is lifted upright by a crane or the like as shown in Figures 16 and 17, even if the tip (lower end) of the main guide member 12' comes into contact with the sleeper 42 or the ground, the folded reinforcing portion 12a2' of the tip (lower end) of the main guide member 12' can prevent deformation of the main guide member 12' and the auxiliary guide member 13' which is set on top of the main guide member 12' as much as possible, and it is also possible to prevent as much as possible that it will affect the sliding of the auxiliary guide member 13' relative to the main guide member 12'.

[0092] As a result, the split column connection guide jig 1' of Embodiment 2, compared to the split column connection guide jig 1 of Embodiment 1, reinforces the tip (lower end) of the main guide member 12' with the folded-back reinforcement portion 12a2', thereby preventing deformation of the main guide member 12' and the auxiliary guide member 13' and improving workability.

[0093] (3) Improvement point 3 Improvement 3 of the divided column connecting guide jig 1' in Embodiment 2 of the present invention is that the shape of the elongated hole 13a1' for the auxiliary guide slide of the auxiliary guide member 13' has been improved, thereby improving the ease of assembly.

[0094] Figure 37 is a perspective view of the auxiliary guide member 13' constituting the divided column connection guide jig 1' of Embodiment 2 according to the present invention, and Figures 38(a) to (e) are a plan view, front view, left side view, rear view, and cross-sectional view along the KK line in Figure 38(b), respectively, of the auxiliary guide member 13' constituting the divided column connection guide jig 1' of Embodiment 1 according to the present invention.

[0095] The auxiliary guide member 13' of Embodiment 2, like the auxiliary guide member 13 of Embodiment 1, is formed separately from the main guide member 12' and is mounted on the outside of the main guide member 12' so that it can move up and down, that is, slide vertically. It is a member that guides the upper end portion 22a of the lower column 22 to the main guide side guide portion 12b2' of the main guide member 12'. As shown in an enlarged view in Figure 30(b), a space retention nut 12d is interposed between the auxiliary guide member 13' and the main guide member 12' to form a space S between them, and the auxiliary guide member 13' is configured to slide relative to the main guide member 12' due to its own weight.

[0096] As shown in Figures 37 and 38, the auxiliary guide member 13' has a back plate portion 13a' and side plate portions 13b', 13b' that extend outwards from both sides of the back plate portion 13a'. The side plate portions 13b', 13b' are formed in a U-shape that widens towards the tip, and above the back plate portion 13a' and the side plate portions 13b', 13b', there is a rubber band engagement hole portion 13c' into which the rubber band 14, which is an auxiliary guide restraint member, engages, similar to the auxiliary guide member 13 of Embodiment 1.

[0097] The side plate portions 13b', 13b' are provided with vertical portions 13b1', 13b1' and auxiliary guide side guide portions 13b2', 13b2', respectively, similar to the side plate portions 13b, 13b of the auxiliary guide member 13 of Embodiment 1. The back plate portion 13a' is provided with an auxiliary guide slide elongated hole 13a1' that guides the vertical sliding of the auxiliary guide member 13' relative to the main guide member 12', with the shafts of two guide bolts 12c, 12c passing through below the rubber band engagement hole 13c' as slide guide protrusions.

[0098] Furthermore, in the auxiliary guide member 13' of Embodiment 2, unlike the auxiliary guide slide elongated hole 13a1 of the auxiliary guide member 13 of Embodiment 1 (see Figures 12 to 14), a round hole portion 13a2' is provided at the lower end of the elongated hole 13a1' for the auxiliary guide slide, having an inner diameter larger than the outer diameter of the fastening nut 12f (see Figure 30(b)) that is fastened with the guide bolts 12c, 12c, and is provided continuously with the elongated hole 13a1' for the auxiliary guide slide.

[0099] Therefore, the auxiliary guide member 13' constituting the divided column connection guide jig 1' of Embodiment 2 has an inner diameter larger than the outer diameter of the fastening nut 12f (see Figure 30(b)), and the round hole portion 13a2' continuous with the elongated hole 13a1' for the auxiliary guide slide allows the lower guide bolt 12c of the guide bolts 12c, 12c to be moved through the round hole portion 13a2' to the elongated hole 13a1' for the auxiliary guide slide without removing the fastening nut 12f.

[0100] As a result, with the divided column connection guide jig 1' of Embodiment 2, it is easier to attach and detach the auxiliary guide member 13' to the main guide member 12' than with the divided column connection guide jig 1 of Embodiment 1. Furthermore, as shown in Figure 27, it is possible to easily change to a configuration in which the auxiliary guide member 13 of one of the pair of band fittings 11a, 11a is removed and used, thereby improving the workability of removing and assembling the auxiliary guide member 13'. [Explanation of symbols]

[0101] 1,1' Divided column connection guide jig 11 Guide mounting member 11a Band fittings 11a1 Band fitting body 11a2 Band fixing piece 11a21 Bolt hole 11a3 Reinforcement piece 11b Fastening bolts 11c nut 11d' Handle section 12,12' Main guide member (guide member) 12a,12a' Back plate part 12a1, 12a1' Bolt holes 12a2' Reinforced section 12b,12b' Side plate part 12b1, 12b1' Band fitting joint 12b2, 12b2' Main guide side guide section 12c Guide bolt (projection for slide guide) 12d spacing retaining nut 12e Color 12f fastening nut 13,13' Auxiliary guide member (guide member) 13a,13a' Back plate part 13a1, 13a1' Elongated holes for auxiliary guide slides 13a2' Round hole 13b,13b' Side plate part 13b1, 13b1' Vertical section 13b2, 13b2' Auxiliary guide side guide section 13c, 13c' Rubber band engagement hole (restraint member engagement part) 14. Rubber band (auxiliary guide restraint member) 15 Rubber band connecting rope Two-part column (jointed column) 21 Upper pillar 21a Recess for fitting 21b Scaffolding fittings 22 Lower pillar 41 Pillar stand 42 Railway sleepers

Claims

1. A guide mounting member that is detachably attached to the lower end of the upper column or the upper end of the lower column that constitutes the divided column, A guide member provided on the guide mounting member, having a guide portion that abuts against the upper end of the lower column or the lower end of the upper column to which it is to be connected, and guides the connection between the lower end of the upper column and the upper end of the lower column, A segmented column connection guide jig characterized by comprising the following features.

2. In the segmented column connecting guide jig according to claim 1, The aforementioned guide mounting member is attached to the lower end of the upper column, The guide member is A main guide member having a main guide side guide portion that is fixed to the guide mounting member and inclined from the outside to the inside of the guide mounting member, The main guide member is slidably mounted on the main guide member and has an auxiliary guide-side guide portion that inclins from the outside to the inside of the guide portion mounting member, The segmented column connecting guide jig is characterized in that the auxiliary guide member slides downward relative to the main guide member, thereby protruding below the main guide member.

3. In the segmented column connecting guide jig according to claim 2, The vertical length of the auxiliary guide member is greater than the vertical length of the main guide member. The main guide member is provided with a slide-guiding projection that guides the vertical sliding of the auxiliary guide member, while the auxiliary guide member is provided with an elongated hole for an auxiliary guide slide that guides the slide-guiding projection of the main guide member, characterized in that the divided column connecting guide jig.

4. In the segmented column connecting guide jig according to claim 2, A segmented column connecting guide jig characterized in that the inclination angle of the main guide side guide portion of the main guide member is greater than the inclination angle of the auxiliary guide side guide portion of the auxiliary guide member.

5. In the segmented column connecting guide jig according to claim 2, The aforementioned auxiliary guide member is A segmented column connecting guide jig characterized in that, when the auxiliary guide member is slid relative to the main guide member and raised to its maximum extent, the height of the lower end of the auxiliary guide member and the height of the lower end of the main guide member are provided on the main guide member so that they are approximately the same.

6. In the segmented column connecting guide jig according to claim 2, The auxiliary guide member is provided with a restraint member engagement portion into which an auxiliary guide restraint member engages with the main guide member, restraining the auxiliary guide member in a suspended state. A segmented column connecting guide jig characterized in that when the auxiliary guide restraint member, which was engaged with the restraint member engagement portion, becomes disengaged, the auxiliary guide member slides relative to the main guide member due to its own weight.

7. In the segmented column connecting guide jig according to claim 2, The main guide member and the auxiliary guide member each have a back plate portion and a pair of side plate portions that bend and extend from both sides of the back plate portion. The angle of the side plate portion of the auxiliary guide member with respect to the back plate portion is formed to be smaller than the angle of the side plate portion of the main guide member with respect to the back plate portion. A segmented column connecting guide jig characterized in that, when the auxiliary guide member is slidably placed on the outside of the main guide member, a space is provided between the back plate portion of the main guide member and the back plate portion of the auxiliary guide member.

8. A method for connecting segmented columns using a segmented column connecting guide jig, the jig comprising: a guide mounting member attached around the lower end of an upper column; a main guide member fixed to the guide mounting member and having a main guide-side guide portion that guides the upper end of a lower column to the lower end of an upper column; and an auxiliary guide member that slides vertically relative to the main guide member, protruding below the main guide member, and having an auxiliary guide-side guide portion that guides the upper end of a lower column to the main guide-side guide portion of the main guide member, and an auxiliary guide restraint member engaging portion that engages with the auxiliary guide restraint member, wherein When the upper column is on the ground, the auxiliary guide member is raised relative to the main guide member using the segmented column connecting guide jig that has been previously attached to the lower end of the upper column, and the auxiliary guide restraint member is engaged with the restraint member engagement portion of each auxiliary guide member to restrain the auxiliary guide member to the main guide member. When the upper column is lifted and suspended above the ground, the auxiliary guide restraint member that was engaged with the restraint member engagement portion of the auxiliary guide member is released, and the auxiliary guide member is lowered relative to the main guide member. A method for connecting divided columns, characterized in that the upper end of the lower column is guided to the main guide side of the main guide member by the auxiliary guide side guide portion of the auxiliary guide member which has descended relative to the main guide member, and the main guide side guide portion of the main guide member is then used to guide the upper end of the upper column.

9. In the method for connecting divided columns according to claim 8, Multiple main guide members are provided around the outer circumferential surface of the lower end of the upper column at predetermined intervals relative to the guide mounting member. A method for connecting divided columns, characterized in that the auxiliary guide member is provided so as to be slidable in the vertical direction on the main guide member, which is provided in a plurality of locations around the outer circumferential surface of the lower end of the upper column.

10. In the method for connecting divided columns according to claim 8, The main guide member is Multiple guides are provided on the aforementioned guide mounting member at predetermined intervals so as to encircle the outer surface of the lower end of the upper column, The aforementioned auxiliary guide member is A method for connecting segmented columns, characterized in that the main guide member, which is provided on half of the outer circumferential surface of the lower end of the upper column, is provided so as to be slidable in the vertical direction only.

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