JP2015187348A - Sheath pipe for column erection and method of erecting column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheath pipe for column erection that can have a cover body easily replaced without digging a construction surface.SOLUTION: A sheath pipe 100 for column erection including a sheath pipe body 110 having its column insertion opening 111 at an upper end buried while exposed from a construction surface, a cover body 120 opening and closing the column insertion opening 111, a cover body fitting base body 130 provided protruding outward from an outer peripheral part nearby the upper end of the sheath pipe body 110, and a cover body fitting mechanism 140 fitted with a fitting piece 121 provided in a rotatable state on a base end side of the cover body 140 has such a structure that the fitting piece 121 can be fitted to or removed from the cover body fitting mechanism 140 by only an operation through a cover body fitting opening 131 provided at an upper end of the cover body fitting base body 130.

Description

  TECHNICAL FIELD The present invention relates to a column tube for column erecting embedded under a work surface in order to erect a column such as a bollard on a work surface such as the ground, and a column erecting method using the same.

  When a column such as a bollard is erected on a construction surface such as the ground, a column tube for column erection is embedded under the surface of the construction. Various types of sheath pipes for standing columns have been proposed so far. For example, as shown in FIGS. 10 and 11, a sheath tube main body 110 for inserting a lower end portion of a support column, a lid body 120 for opening and closing a support column insertion port 111 provided at the upper end of the sheath tube body 110, and a sheath A lid attachment base 130 that protrudes outward from an outer peripheral portion near the upper end of the tube body 110 and a support shaft 141 that attaches the lid 120 in a rotatable state inside the lid attachment base 130. A supporting tube 100 for standing upright is known. FIG. 10 is a perspective view showing the entire structure of a conventional support tube erection 100. FIG. FIG. 11 is an enlarged perspective view showing a state in which the conventional support tube erection 100 shown in FIG. 10 is disassembled into a sheath tube main body 110, a cover body 130, a cover body 120, and a support shaft 141. It is. In this type of conventional erected sheath tube 100 with a lid, the lid 120 not only closes the column insertion port 111 when the column is not inserted into the sheath tube body 110 but also covers the sheath tube body 110. It also has a function of fixing the support so that the support is not pulled out from the sheath tube main body 110 when the support is inserted (see, for example, paragraph 0024 and FIG. 5 of Patent Document 1).

  However, in this type of sheathed tube 100 for standing columns with a lid, the lid 120 may be damaged and the lid 120 may need to be replaced. Even in such a case, the lid 120 There was a drawback that it was not possible to easily exchange. This is because, in this type of standing-up sheath tube 100, the cover body 120 is inserted by inserting the support shaft 141 into the support shaft insertion hole 121 c provided on the proximal end side of the cover body 120, as shown in FIG. 11. In addition to being mounted in a rotatable state, the support shaft 141 is structured to be fixed from the outside of the lid mounting base 130. Therefore, when the lid 120 is to be removed, the lid mounting base is removed. Since it is necessary to remove the support shaft 141 from the outside of 130, the lid attachment base 130 is embedded under the construction surface except for the lid attachment port 131, so unless the construction surface is dug up This is because the support shaft 141 could not be removed from the lid mounting base 130. The construction surface around the casing main body 110 is often hardened with a filling material such as mortar or a paving material such as asphalt or concrete. In such a case, it is more difficult to replace the lid 120. It becomes.

JP 2011-241671 A

  The present invention has been made in order to solve the above-described problems, and provides a support-standing sheath tube that can be easily replaced without digging up a construction surface. It is also an object of the present invention to provide a column erecting method using the column erecting sheath.

The above issues
Formed by a cylindrical member having a column insertion port at the upper end, the sheath tube main body embedded under the construction surface in a state where the column insertion port is exposed to the construction surface;
A lid that is formed by a plate-like member having a mounting piece on the base end side, and that opens and closes the support post insertion port;
A lid mounting base formed by a surrounding wall-shaped member having a lid mounting opening at the upper end, and protruding outward from the outer peripheral portion in the vicinity of the upper end of the sheath tube body;
A lid attachment mechanism that is provided inside the lid attachment base and attaches the attachment piece inserted into the lid attachment base from the lid attachment opening in a rotatable state;
A sheath pipe for standing upright equipped with,
By providing a sheath tube for standing upright, characterized in that the attachment piece can be attached to or removed from the lid attachment mechanism only by operation through the lid attachment port. Solved.

  The sheath tube for standing upright of the present invention has a structure that allows the attachment piece to be attached to or removed from the lid attachment mechanism only by operation through the lid attachment port. By inserting a hand or tool into the inside of the lid mounting base from the lid mounting port and operating the lid mounting mechanism, it is possible to easily replace the lid without digging up the construction surface. ing.

  In the sheath tube for standing columns of the present invention, the lid attachment mechanism and the lid attachment piece are attached to or removed from the lid attachment mechanism only by operation through the lid attachment port. If possible, the specific structure is not particularly limited. For example, as shown in FIG. 7, the lid attachment mechanism is configured by a spindle 141, and a spindle insertion hole 121 c for inserting the spindle 141 into the attachment piece 121 of the lid 120 and a spindle 141 are provided. You may provide the spindle introduction path 121d for introduce | transducing from the outer edge part of the attachment piece 121 to the spindle insertion hole 121c, and the opening-and-closing means 150 which opens and closes the spindle introduction path 121d. FIG. 7 shows a first modification of the support-erected sheath tube 100 according to the present invention, a sheath tube main body 110, a lid mounting base 130, a lid body 120, a support shaft 141 (lid body mounting mechanism), It is the expansion perspective view which showed the state decomposed | disassembled into. Further, as shown in FIG. 8, the lid attachment mechanism is constituted by a support shaft 141 fixed to the inner surface of the lid attachment base 130 from the inside of the lid attachment base 130, and the attachment piece 121 of the lid 120 is attached to the attachment piece 121. A support shaft insertion hole 121c for inserting the support shaft 141 may be provided. FIG. 8 shows a second modification of the support-erected sheath tube 100 according to the present invention, a sheath tube main body 110, a cover body mounting base 130, a cover body 120, a support shaft 141 (cover body mounting mechanism), It is the expansion perspective view which showed the state decomposed | disassembled into. Furthermore, as shown in FIG. 9, the lid attachment mechanism is configured by a spindle 141 that can be expanded and contracted in the central axis direction, and a spindle insertion for inserting the spindle 141 into the attachment piece 121 of the lid 120. A hole 121c may be provided. FIG. 9 shows a third modified example of the support-erected sheath tube 100 according to the present invention. The sheath tube main body 110, the cover body mounting base 130, the cover body 120, the support shaft 141 (the cover body mounting mechanism), It is the expansion perspective view which showed the state decomposed | disassembled into. 7 to 9, all of the sheath tubes for standing columns are attached to the support shaft 141 (cover attachment mechanism) or the support shaft 141 (cover attachment mechanism) only by the operation through the cover attachment port 131. ) Can be removed from.

  However, while allowing the attachment piece to be attached to and detached from the lid attachment mechanism with a simpler operation, preventing the attachment piece attached to the lid attachment mechanism from dropping off when not intended, In consideration of reducing the manufacturing cost with a simple structure, the lid attachment mechanism and the lid attachment piece are preferably configured as follows. That is, as shown in FIGS. 4 to 6, the lid attachment mechanism 140 can be rotated with respect to the support shaft 141 provided to protrude inside the cover attachment base 130 and the outer peripheral portion of the support shaft 141. In order to insert the support shaft 141 into the mounting piece 121 of the lid body 120, and the elastic member 142 having the engagement end portion 142 b that is elastically movable back and forth. In order to engage the support shaft insertion hole 121c, the support shaft introduction path 121d for introducing the support shaft 141 from the outer edge of the mounting piece 121 to the support shaft mounting hole 121c, and the engagement end 142b of the elastic member 142. The engaged portion 121e is provided. In this support-standing erection tube, only a simple operation of engaging or disengaging the engagement end portion 142e of the elastic member 142 with the engaged portion 121e of the attachment piece 121 of the lid 120 is possible. Thus, the attachment piece 121 can be attached to the support shaft 141, or the attachment piece 121 can be removed from the support shaft 141. Moreover, the lid body 120 in this support column standing sheath tube is provided with a support shaft introduction path 121d and an engaged portion 121e on an attachment piece 121 in the conventional support column standing sheath tube cover 120 shown in FIGS. The elastic member 142 is the only part that can be produced simply by processing. For this reason, it is also possible to suppress the manufacturing cost.

  As described above, according to the present invention, it is possible to provide a support-standing sheath tube in which the lid can be easily replaced without digging up the construction surface. In addition, it is possible to provide a method for erecting a column using the column tube for erecting a column.

It is sectional drawing which showed the state which cut | disconnected the state which embedded the support | erection standing-up sheath tube of the suitable embodiment which concerns on this invention in the construction surface by the plane containing the centerline of the support | pillar standing-up sheath tube. It is sectional drawing which showed the state which cut | disconnected the state which installed the support | pillar on the construction surface using the support | pillar standing sheath tube shown in FIG. It is the perspective view which showed the whole support | pillar standing sheath tube shown in FIG. It is the expansion perspective view which expanded and showed the circumference | surroundings of the support | pillar insertion port in the support | erection standing-up sheath tube shown in FIG. It is the expansion perspective view which showed the state which decomposed | disassembled the sheath pipe for standing columns shown in FIG. 1 into the casing pipe main body, the cover body attachment base, the cover body, and the cover body attachment mechanism. It is the expansion perspective view which showed the state which has attached the attachment piece of the cover body to the cover body attachment mechanism in the support | pillar standing sheath tube shown in FIG. The expansion perspective view which showed the state which decomposed | disassembled the 1st modification of the sheath pipe for column support | erection concerning this invention into a sheath pipe | tube main body, a cover body attachment base, a cover body, and a spindle (lid body attachment mechanism). FIG. The expansion perspective view which showed the state which decomposed | disassembled the 2nd modification of the sheath pipe for standing pillars which concerns on this invention into the sheath pipe | tube main body and the cover attachment base | substrate, a cover body, and a spindle (lid body attachment mechanism). FIG. The expansion perspective view which showed the state which decomposed | disassembled the 3rd modification of the sheath pipe for standing pillars which concerns on this invention into the sheath pipe | tube main body and the cover attachment base | substrate, a cover body, and a spindle (lid body attachment mechanism). FIG. It is the perspective view which showed the whole conventional support | pillar standing sheath tube. It is the expansion perspective view which showed the state which decomposed | disassembled the conventional support | pillar standing sheath tube shown in FIG. 10 into the sheath tube main body, the cover body attachment base, the cover body, and the cover body attachment mechanism.

  A preferred embodiment of a support tube standing tube according to the present invention and a support column setting method using the same will be described more specifically with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a support pipe erection sheath tube 100 according to a preferred embodiment of the present invention is embedded in the construction surface α, cut along a plane including the center line of the support pillar erection sheath pipe 100. FIG. FIG. 2 shows a state in which the column 200 is erected on the construction surface α using the column erection sheath tube 100 shown in FIG. 1 and is cut by a plane including the center line of the column erection sheath tube 100. FIG. FIG. 3 is a perspective view showing the entire support tube 100 shown in FIG. FIG. 4 is an enlarged perspective view showing the periphery of the column insertion port 111 in the sheath tube 100 for standing columns shown in FIG. 1 in an enlarged manner. FIG. 5 is an enlarged perspective view illustrating a state in which the sheath tube 100 for standing columns shown in FIG. 1 is disassembled into a sheath tube main body 110, a lid mounting base 130, a lid 120, and a lid mounting mechanism 140. It is. FIG. 6 is an enlarged perspective view showing a state in which the attachment piece 121 of the lid 120 is attached to the lid attachment mechanism 140 in the supporting column erecting sheath 100 shown in FIG.

  As shown in FIG. 3, the support-standing sheath tube 100 of this embodiment has a sheath tube main body 110 formed by a cylindrical member having a support insertion port 111 at the upper end, and an attachment piece 121 on the proximal end side. A lid 120 formed of a plate-like member, a lid attachment base 130 formed of a surrounding wall-like member having a lid attachment opening 131 at the upper end, and a lid attachment mechanism housed inside the lid attachment base 130 140. As shown in FIG. 1, the support tube erection sheath tube 100 is constructed by embedding the sheath tube main body 110 and the lid attachment base 130 under the construction surface α. At this time, the column insertion port 111 in the sheath tube main body 110 and the lid attachment port 131 in the lid attachment base 130 are adjusted to the same height as the construction surface α so as to be exposed to the construction surface α. As shown in FIG. 2, the lower end portion of the support column 200 is inserted into the support column insertion port 111, and the support column 200 is kept standing from the construction surface α. In FIG. 2, the support column 200 is drawn as a solid member for convenience of illustration, but the support column 200 is not limited to a solid member, and a hollow member is often used. In particular, when the column 200 is a bollard, a light source such as a light emitting diode, an electric wire or power source for supplying power to the light source, a spring material for imparting elasticity to the column 200, etc. Various members are often accommodated.

  In the sheath tube 100 for standing upright of the present embodiment, the sheath tube main body 110 and the lid mounting base 130 may be directly embedded in the hole dug in the construction surface α, but as shown in FIG. After cutting the crushed stone 300 (crusher run) into the bottom of the hole dug in the surface α and embedding the cylindrical foundation block 310 in the hole, the sheath tube main body 110 is inserted into the sheath tube accommodation hole 311 provided in the foundation block 310. In addition, it is preferable that the sheath tube main body 110 and the cover body mounting base 130 are embedded under the construction surface α by inserting the cover body mounting base 130. A gap between the outer peripheral surface of the sheath tube main body 110 and the lid attachment base 130 and the inner peripheral surface of the sheath tube housing hole 311 is usually filled with a filler 320 such as mortar. As a result, not only the sheath tube main body 110 in the sheath tube 100 for standing columns after construction is stably fixed under the construction surface α so as not to wobble, but also the height of the column insertion port 111 of the sheath tube main body 110 is increased. It is possible to easily match the construction surface α.

  The support tube 100 of this embodiment can be used when various support columns 200 are set up on the construction surface α. The column 200 erected by the column tube 100 for column erection in this embodiment is completely fixed to the construction surface α such as a sign or a sign post (not intended to be removed from the construction surface α). Although it may be a support post), it is preferable that it is not completely fixed to the construction surface α (a support post assumed to be removed from the construction surface α). A typical example of the latter support 200 is a bollard or the like. Hereinafter, each member which comprises the support | erection standing sheath tube 100 of this embodiment is demonstrated in detail.

[Sheath tube body]
As shown in FIG. 2, the sheath tube main body 110 is a portion for inserting the lower portion of the upright target column 200. The dimensions and shape of the casing tube main body 110 are not particularly limited and vary depending on the dimensions and type of the support column 200. In the sheath tube 100 for standing upright of this embodiment, the sheath tube main body 110 is formed in a bottomed cylindrical shape having an outer diameter of 89.1 mm, an inner diameter of 82.7 mm, and a height of 420 mm. The column 200 can be suitably used for standing upright. In addition, the material of the sheath tube main body 110 is not particularly limited as long as it has a necessary strength, but a metal having excellent strength and corrosion resistance is usually employed. In the sheath tube 100 for standing uprights of this embodiment, the sheath tube main body 110 is formed of carbon steel subjected to corrosion resistance treatment (hot dip galvanization).

[Lid]
As shown in FIG. 5, the lid 120 is provided with a mounting piece 121 on the base end side. The lid 120 not only blocks the column insertion port 111 when the column 200 is not inserted into the sheath tube main body 110, but also when the column 200 is inserted into the sheath tube body 110 as shown in FIG. Also, it has a function of connecting the sheath tube main body 110 and the strut 200 so that the strut 200 is not pulled out from the sheath tube main body 110. In the sheath tube 100 for standing upright of the present embodiment, the lid body 120 is provided with a fixing hole 122, and the column 200 is fixed to the lid body 120 by passing the fixture 400 through the fixing hole 122. I can do it.

  The attachment piece 121 in the lid 120 is not particularly limited as long as it can be pivotably attached to a lid attachment mechanism 140 described later. In the pillar standing bollard 100 of this embodiment, as shown in FIG. 5, the mounting piece 121 includes a substrate portion 121 a protruding from the base end side of the lid body 120, and the lid body 120 from both side edges of the substrate portion 121 a. It is comprised with a pair of standing part 121b which stood on the lower surface side. Each upright portion 121b is provided with a support shaft insertion hole 121c, a support shaft introduction path 121d, and an engaged portion 121e. Among these, the support shaft insertion hole 121c is a portion for inserting the support shaft 141 in the lid attachment mechanism 140 described later. The support shaft introduction path 121d is a portion for introducing the support shaft 141 in the lid mounting mechanism 140 described later from the outer edge portion of the mounting piece 121 to the support shaft mounting hole 121c. Furthermore, the engaged portion 121e is a portion for engaging an engagement end portion 142b of the elastic member 142 in the lid attachment mechanism 140 described later.

  The size and shape of the lid 120 differ depending on the size and shape of the column insertion port 111 that it closes, and are not particularly limited. In the support-erected sheath tube 100 of the present embodiment, the portion of the lid 120 excluding the attachment piece 121 (the portion that closes the support insertion port 111) has a circular shape with a radius of 100 mm. The portion of the lid 120 that closes the column insertion port 111 is not necessarily formed in a continuous surface shape, and may be provided with an opening such as a mesh shape. Moreover, you may give an unevenness | corrugation and various designs as needed. The material of the lid 120 is not particularly limited, but usually a metal excellent in strength and corrosion resistance is employed. In the support tube erection 100 of this embodiment, the lid 120 is made of carbon steel that has been subjected to corrosion resistance treatment (hot dip galvanization).

[Cover mounting base]
As shown in FIG. 5, the lid mounting base 130 is provided so as to protrude outward from the outer peripheral portion near the upper end of the sheath tube main body 110. The lid attachment base 130 is a part for accommodating a lid attachment mechanism 140 described later. The lid attachment base 130 can prevent the outer filler 320 (see FIGS. 1 and 2), soil, and the like from entering the inside (a space in which a lid attachment mechanism 140 described later is accommodated). If there is, the dimension and shape are not limited. In the sheath tube 100 for standing columns of this embodiment, the lid mounting base 130 has a bottomed hollow rectangular parallelepiped shape with a length of about 65 mm, a width of about 38 mm, and a height of about 35 mm. The material of the lid mounting base 130 is not particularly limited, but usually a metal excellent in strength and corrosion resistance is employed. In the support tube erection 100 of this embodiment, the lid attachment base 130 is formed of the same material (carbon steel) as the sheath tube body 110 and is welded to the sheath tube body 110.

[Cover attachment mechanism]
As shown in FIGS. 4 to 6, the lid attachment mechanism 140 is for attaching the attachment piece 121 of the lid 120 inserted into the inside of the lid attachment base 130 from the lid attachment opening 131 in a rotatable state. It has become a thing. The specific structure of the lid attachment mechanism 140 is not particularly limited as long as the attachment piece 121 can be attached or detached only by an operation through the lid attachment port 131. As already described, the lid mounting base 140 may have a form as shown in FIGS. 7 to 9, but in the sheath tube 100 for standing columns of this embodiment, as shown in FIGS. 4 to 6, The support shaft 141 is provided in a state of protruding to the inside of the lid mounting base 130, and the elastic member 142 is wound so as to be rotatable with respect to the outer peripheral portion of the support shaft 141. The support shaft 141 uses a bolt that can be inserted into a support shaft insertion hole 132 provided on a pair of side walls of the lid mounting base 130. A nut 143 is screwed onto the tip of the support shaft 141. In the column erecting sheath tube 100 of the present embodiment, two nuts 143 are used to make it difficult to loosen. On the other hand, the elastic member 142 is a pair of wound portions 142a wound in a rotatable manner with respect to the outer peripheral portion of the support shaft 141, and elastically advanced / retracted displacement provided at both ends of the wound portion 142a. It is composed of a pair of possible engaging end portions 142b and a connecting portion 142c that connects the pair of winding portions 142a.

  Each winding portion 142a of the elastic member 142 has less than one winding and is an open ring (C-shaped), but the width of the gap in the opened portion is larger than the outer diameter of the support shaft 141. It is sufficient if it is small and the support shaft 141 does not come out of the gap. The elastic member 142 in the support tube erection 100 of this embodiment is also in such a form. The material of the elastic member 142 is not particularly limited as long as it has necessary strength and elasticity. In the sheath for standing upright column 100 of this embodiment, the elastic member 142 is formed by bending one spring wire made of stainless steel.

The attachment piece 121 can be attached to the lid attachment mechanism 140 by the following attachment procedures 1 to 7.
[Attachment Procedure 1] The attachment piece 121 is inserted into the inside of the lid attachment base 130 from the lid attachment opening 131 (FIG. 6).
[Attachment procedure 2] The angle of the attachment piece 121 is adjusted so that the inlet of the support shaft introduction path 121d faces the support shaft 141 side (lower side).
[Attachment procedure 3] A pair of upright parts 121b are applied to the outside of a portion where the pair of winding parts 142a is wound around the outer periphery of the support shaft 141.
[Attachment Procedure 4] The attachment piece 121 is moved, and the spindles 141 are introduced to the respective spindle insertion holes 121c through the respective spindle introduction paths 121d.
[Attachment Procedure 5] The pair of engaging end portions 142b of the elastic member 142 are pushed inward to be elastically displaced.
[Attachment Procedure 6] The angle of the attachment piece 121 or the elastic member 142 is adjusted, and the pair of engagement end portions 142b of the elastic member 142 are overlapped with the respective engaged portions 121e.
[Attachment Procedure 7] Pushing of the pair of engaging end portions 142b of the elastic member 142 is released, the pair of engaging end portions 142b is returned to the initial position, and the pair of engaging end portions 142b are respectively engaged portions. Engage with 121e (FIG. 4).

  In the state of FIG. 4 in which the above attachment procedure 7 is completed, the elastic member 142 is integrated with the attachment piece 121 (the lid 120) by engaging the engagement end portion 142b with the engaged portion 121e. Therefore, even if the mounting piece 121 is rotated in any direction, the support shaft introduction path 121d is always divided by the winding portion 142a of the elastic member 142. For this reason, even if the mounting piece 121 is operated and the mounting piece 121 is pulled out from the support shaft 141, when the support shaft 141 is moved from the support shaft insertion hole 121c to the support shaft introduction path 121d, The portion 142a is caught on the outer periphery of the support shaft 141, and the support shaft 141 cannot be moved from the support shaft insertion hole 121c to the support shaft introduction path 121d. That is, the attachment piece 121 cannot be removed from the support shaft 141 unless the engagement between the engagement end 142b and the engaged portion 121e is intentionally removed.

On the other hand, the attachment piece 121 can be removed from the lid attachment mechanism 140 of the standing-up sheath tube 100 in the state shown in FIG. 4 by the following removal procedures 1 to 4.
[Removal Procedure 1] The pair of engaging end portions 142b of the elastic member 142 is pushed inward to be elastically displaced, thereby disengaging the engaging end portion 142b and the engaged portion 121e, and attaching pieces. It is assumed that 121 and the elastic member 142 can rotate independently (a state in which the elastic member 142 does not rotate integrally).
[Removal Procedure 2] The angle of the attachment piece 121 is adjusted so that the entrance of the support shaft introduction path 121d faces downward.
[Removal Procedure 3] By lifting the attachment piece 121 upward, the support shaft 141 is moved from the support shaft insertion hole 121c to the support shaft introduction path 121d.
[Removal Procedure 4] The mounting piece 121 is lifted upward as it is, and the support shaft 141 is removed from the support shaft introduction path 121d.

  In the state where the above removal procedure 4 is completed, the attachment piece 121 is completely detached from the support shaft 141.

  The attachment procedures 1 to 7 and the removal procedures 1 to 4 described above are only operations through the lid attachment port 131. For this reason, the support | pillar standing sheath tube 100 of this embodiment can replace | exchange the cover body 120 easily without digging up the construction surface (alpha). In addition, the attachment procedures 1 to 7 and the removal procedures 1 to 4 described above are almost performed by a simple operation (the attachment procedure 5 and the removal procedure 1) in which the pair of engagement end portions 142b of the elastic member 142 are pushed inward. To complete, it can be done very easily.

DESCRIPTION OF SYMBOLS 100 Column tube for standing column 110 Sheath tube main body 111 Column insertion port 120 Lid 121 Attachment piece 121a Substrate part 121b Standing part 121c Support shaft insertion hole 121d Support shaft introduction path 121e Engaged portion 122 Fixed hole 130 Cover body base 131 Lid attachment port 132 Support shaft insertion hole 140 Lid installation mechanism 141 Support shaft (bolt)
142 elastic member 142a winding part 142b engagement end part 142c connecting part 143 nut 150 opening / closing means 200 support 300 notched crushed stone 310 foundation block 311 sheath tube receiving hole 320 filler 400 fixing tool α construction surface

Claims (3)

Formed by a cylindrical member having a column insertion port at the upper end, the sheath tube main body embedded under the construction surface in a state where the column insertion port is exposed to the construction surface;
A lid that is formed by a plate-like member having a mounting piece on the base end side, and that opens and closes the support post insertion port;
A lid mounting base formed by a surrounding wall-shaped member having a lid mounting opening at the upper end, and protruding outward from the outer peripheral portion in the vicinity of the upper end of the sheath tube body;
A lid attachment mechanism that is provided inside the lid attachment base and attaches the attachment piece inserted into the lid attachment base from the lid attachment opening in a rotatable state;
A sheath pipe for standing upright equipped with,
A support-standing sheath tube characterized in that the attachment piece can be attached to or removed from the lid attachment mechanism only by an operation through the lid attachment port. The lid mounting mechanism
A support shaft provided protruding from the inside of the lid mounting base;
A wound portion wound in a rotatable manner with respect to the outer peripheral portion of the support shaft, and an elastic member having an engagement end portion that can be moved back and forth elastically;
Consists of
A support shaft insertion hole for inserting the support shaft into the mounting piece of the lid, a support shaft introduction path for introducing the support shaft from the outer edge portion of the mounting piece to the support shaft mounting hole, and an engagement end of the elastic member The sheath tube for standing uprights according to claim 1, further comprising an engaged part for engaging the part.   A column erecting method in which a column is erected on a construction surface using the column tube for column erection according to claim 1 or 2.

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