JP2007186923A - Plumbing adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve working efficiency when the plumbing of a steel column vertically installed on the lowermost stage is adjusted. <P>SOLUTION: This plumbing adjusting device comprises an extension rod 4 the lower end part 4a of which is connected to the screw part 11a of an anchor bolt 11 while being coaxially formed with the anchor bolt 11 and the upper end side 4b of which is extended in the axial direction of the anchor bolt 11 and a center hole jack 5 joined to the upper end side 4b of the extension rod 4 while allowing the upper end side 14 of the extension rod 4 to extend therethrough. The framing adjusting device further comprises a block 6 having a center hole jack 5 placed thereon at the upper end while being placed on a base plate 21 through which the anchor bolt 11 is extended. The block comprises a nut turning device 7 joined to the nut 3 screwed to the anchor bolt 11 on the inside of the lower end part 61a while allowing the extension rod 4 joined to the center hole jack 5 to be extended through the axis part thereof. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an erection adjustment device, and more particularly, to an improvement of an erection adjustment device used when a column body that is the lowest stage is erected on a foundation such as a footing.

  For example, as an erection adjustment device used when standing a pillar constituting a structure, there have been various proposals, and among them, the erection adjustment device disclosed in Patent Document 1, It has been proposed to be used when erected a steel column that is the lowest step on a foundation such as Fuchin.

  In other words, the erection adjustment device disclosed in Patent Document 1 adjusts the level of the flat base plate integrally connected to the lower end of the steel column that is the lowest stage, thereby adjusting the base plate. It is assumed that the steel pillars that are erected are erected as set, that is, according to the design drawing.

  At this time, in the erection adjustment device disclosed in Patent Document 1, a frame connected to the base plate, an anchor gripping tool connected to a dedicated anchor bolt while being connected to the frame, and the anchor gripping tool And a jack connected to the frame, and driving the jack with a dedicated anchor bolt as a fulcrum of reaction force on the frame fixed to the base plate, the base plate is fixed to the base such as footin. It is going to go up and down.

Therefore, in the proposal disclosed in Patent Document 1, the base plate can be freely moved up and down without using the anchor bolt for fixing the base plate to a foundation such as a footing. The level of the base plate can be adjusted while maintaining it.
Japanese Patent Laying-Open No. 2005-16073 (claims claim 1, claim 2, claim 3, paragraphs 0018, 0020, 0021, 0022, 0026, FIG. 1, FIG. 2)

  However, in the erection adjustment device disclosed in Patent Document 1 described above, there is no particular problem with respect to the erection of the column body, that is, the erection of the column body according to the design drawing itself, It may be pointed out that so-called temporary costs may increase during its use.

  That is, in the above-mentioned building adjustment device, the anchor plate that is pre-installed on the foundation such as the footing is not used in order to fix the base plate on the foundation such as the footing. A special anchor bolt for using the insertion adjusting device is separately provided.

  Therefore, in the above-mentioned erection adjustment device, the provisional cost for installing the dedicated anchor bolt increases, and there is a concern that the construction cost for constructing the structure may be increased. Become.

  In addition, in the above-mentioned installation adjustment device, since the frame is fixedly connected to the base plate, not only the work is necessary, but also the removal work of the frame from the base plate after dredging. Will become essential, and there will be concerns about increasing the temporary costs accordingly.

  The present invention was created in view of the above-described present situation, and the object of the present invention is to allow for adjustment of erection in the column that is erected at the lowest stage. It is to provide an erection adjustment device that is optimal for improving the workability of the apparatus and expecting to improve its versatility.

  In order to achieve the above-described object, the construction of the erection adjusting device according to the present invention basically includes an anchor bolt and a column that extend upwardly on a threaded portion that is implanted in a foundation and screws a nut. A base plate having a base plate that penetrates the threaded portion of the anchor bolt while being continuously provided at the lower end of the body, and is formed coaxially with the anchor bolt while the lower end portion of the anchor bolt is An extension rod connected to the threaded portion and having an upper end extending in the axial direction of the anchor bolt, and a center hole jack connected to the upper end of the extension rod while penetrating the upper end of the extension rod The mounting adjustment device has a block on which the center hole jack is placed on the upper end while being placed on the base plate. And comprising a nut driver to interlocking the extension rod to be cooperative in ter hole jack while inserted in the shaft portion inside the lower end to the anchor bolt nut screwed.

  Therefore, in the present invention, the erection adjusting device functions to lower the base plate that penetrates the anchor bolt with the anchor bolt as a fulcrum of reaction force when the center hole jack is driven, and is erected on the base plate. However, at this time, the block, which is a member constituting the building adjustment device, is only placed on the base plate, and the center hole jack is also placed on the upper end of the block. Therefore, compared with the case where the members constituting the erection adjustment device are fixedly connected to the base plate, the installation and removal work of the erection adjustment device by the worker is simplified, so-called temporary installation An increase in costs can be avoided.

  In addition, the erection adjustment device according to the present invention does not require a special anchor bolt for adjusting the erection of the column body, so that an increase in so-called temporary costs can be avoided also in this respect. become.

  And in the erection adjustment device according to the present invention, the nut turning of the accommodation within the block enables the connection of the tool from the outside of the block, and the center hole jack can be driven by the manual operation using the tool. By doing so, it is possible to simplify the construction of the erection adjustment device itself, and to avoid an unreasonable increase in product cost.

  As a result, according to the present invention, it is optimal for improving workability and enabling improvement in versatility with respect to enabling adjustment of erection in a steel column.

  In the following, the present invention will be described based on the illustrated embodiment. As shown in FIG. 1, the erection adjustment device according to the present invention designs a column 2 that is the lowest step on a foundation 1 such as a footing. It is used when erected as shown in the drawing, that is, when the column body 2 is built. At this time, the connecting portion to the foundation 1 in the column body 2 has an anchor bolt 11 and a base plate 21. Become.

  Accordingly, the connecting portion will be described briefly. The anchor bolt 11 has a lower end side (not shown) embedded in the foundation 1 and the upper thread portion 11a extending upward while the nut 3 is attached to the screw portion 11a. It is supposed to be screwed.

  The anchor bolt 11 passes through the so-called four corners (not shown) of the base plate 21 connected to the lower end of the lowermost column 2 in the vertical direction. The top of the swell 12 that is formed in a substantially hemispherical shape or the like and is called a wharf or a dumpling is brought into contact with the lower surface of the center, and is set so as to be able to swing around the top as a fulcrum .

  The base plate 21 has a hole 21a which is formed in a flat plate shape in many cases and is opened in the four corners so as to penetrate through the wall thickness in the vertical direction, and the anchor 21 is provided in the hole 21a. The thread 11a of the bolt 11 is inserted.

  The nut 3 is screwed into the threaded portion 11a inserted through the hole 21a opened in the base plate 21 and is adjacent to the base plate 21, and the base plate 21 is pressed against the raised portion 12 below. It is assumed that a fixed state in which the swing of 21 is prevented is embodied.

  Incidentally, the column body 2 is made of a steel plate having an arbitrary shape such as a rectangular shape, an H shape, an I shape, a round shape, or a rectangular shape in many cases. The erection piece for linking the erection adjustment device is formed in a state of projecting to the side surface, but in the erection adjustment device according to the present invention, the erection piece is linked to the erection piece. Since it is not a component on the house, the illustrated column 2 is not provided with this erection piece, and therefore, according to the present invention, the erection piece is not required. It can be said that it is advantageous in that the cost of 2 is not increased unnecessarily.

  Note that the nut 3 is screwed into the threaded portion 11a that passes through the hole 21a of the base plate 21 and protrudes upward from the base plate 21 in this connection portion. While the adjustment device is used and the adjustment to the pillar 2 is being executed, the so-called loosening is performed, and after the adjustment is completed, the adjustment is performed so as to be screwed so as to be adjacent to the base plate 21. I'm left.

  When the connecting portion of the column 2 to the foundation 1 is formed as described above, the erection adjusting device according to the present invention includes the extension rod 4, the center hole jack 5, the block 6, and the nut driver 7. It is said to have.

  First, the extension rod 4 substantially extends the anchor bolt 11 and is free as long as it is configured to exhibit a predetermined mechanical strength when tension is applied by the center hole jack 5 described later. Although it may be configured, in the illustrated case, it is formed in a rod shape that is coaxial with the anchor bolt 11.

  The extension rod 4 has a female threaded portion 4a connected to the threaded portion 11a of the anchor bolt 11 at the lower end, and the upper end side extends in the axial direction of the anchor bolt 11. It is assumed that the male screw thread portion 4 b that allows the hole jacks 5 to be connected is formed.

  Next, as shown in FIG. 2, the center hole jack 5 is placed on the upper end of a block 6 described later and is connected to an extension rod 4 that vertically passes through the tip side on the left side in the drawing. The extension rod 4 is lifted by driving a screw jack built in the rear end on the right side.

  That is, the center hole jack 5 is formed in the shape of a piston on the tip side which is the left side in the drawing of the housing 51 formed so as to exhibit the appearance of a rectangular parallelepiped. When the lift body 52 moves so as to be lifted in the figure by the hydraulic pressure supplied by the drive of the screw jack, the extension rod 4 connected to the lift body 52 is provided with a lift body 52 that moves. It will be raised.

  By the way, in this center hole jack 5, the above-mentioned screw jack is defined between the above-mentioned lift body 52 and filled with hydraulic oil by manual operation using a tool such as a ratchet wrench. In this embodiment, as shown in FIG. 2, there is a piston 53 that is housed on the rear end side on the right side of the housing 51 as shown in FIG. It is supposed to be done.

  In the center hole jack 5, the piston 53 is also provided on the rear end side of the center hole jack 5, and is connected to the screw rod portion 54 that is screwed into the inner periphery of the housing 51. The screw rod portion 54 is also connected to the operation rod 55 that is accommodated on the rear end side and is inserted into the housing 51, and the operation end 55 a of the operation rod 55 is connected to the housing 51 from the rear end of the housing 51. 51 is projected outside.

  The lift body 52 is held on the front end side of the casing 51 so as to be movable up and down in the direction penetrating the thickness thereof, that is, in the axial direction of the extension rod 4 described above.

  The lift body 52 has a through hole 52a in the shaft core portion, and the extension rod 4 has a gap in the through hole 52a. That is, the extension rod 4 is in the through hole 52a. Even if it is tilted, it is supposed to be inserted under a condition that does not interfere with the inner periphery of the through hole.

  In the center hole jack 5, an annular oil chamber R is defined between the lower end side of the lift body 52 and the casing 51, and the annular oil chamber R is the piston described above. It is assumed that 53 communicates with the so-called pressure receiving surface side.

  Therefore, in the center hole jack 5, the operation end 55a of the operation rod 55 is rotated by the manual rotation operation of the operator by using a ratchet wrench, etc., and the screw jack is driven, and the piston 53 is housed in the housing. When the oil pressure is increased in the oil chamber R by moving forward, the lift body 52 functions to rise at the tip end side of the housing 51 and pull up the extension rod 4, and is therefore linked to the extension rod 4. The anchor bolt 3 can be lifted with respect to the base plate 21.

  The lift body 52 and the extension rod 4 are connected by appropriate fastening means 8 as shown in FIG. 1. At this time, the fastening means 8 is driven by the center hole jack 5, As shown in the figure, it is sufficient that the lifting rod 4 is lifted so that the lifting operation can be realized without waste. In the illustrated case, the nut is placed under the spherical washer 8a. It is supposed to be fastened by screwing 8b.

  On the other hand, as shown in FIG. 1, the block 6 has a main body 61 that is formed in a headed cylindrical shape and on which the center hole jack 5 described above is placed. The threaded portion 11A of the anchor bolt 11 and the female threaded portion 4a of the extension rod 4 are allowed to be present at the portion.

  In this block 6, the nut turning 7 is placed inside the lower end portion 61 a of the main body 61 so as to enable the nut 3 to rotate, that is, to rotate in conjunction with the nut 3. It is going to be.

  At this time, the nut driver 7 is arranged on the inner periphery of the lower end 61a so as not to be lifted and lowered unnecessarily inside the lower end 61a of the main body 61 at the predetermined position. The upper and lower stoppers 61b are prevented from moving.

  On the other hand, in this block 6, a tool 9 adjacent from the outside is connected to a nut driver 7 to be described later by an introduction operation in the radial direction of the nut 3, and the tool 9 swings in the horizontal direction. Therefore, the opening 61c is formed so as to enable a series of operations of the tool 9 connected to the nut driver 7.

  Although not shown, the opening 61c may be provided at a plurality of locations as long as the predetermined mechanical strength of the block 6 is not reduced. When the openings 61c are provided at a plurality of locations, the bracket 6 is provided, that is, the main body 61. This is advantageous in that the troublesomeness of confirming the position of the opening 61c can be eliminated.

  Next, the nut driver 7 is formed so as to fit the nut 3 on the inner side, and the outer periphery thereof is adjacent to the inner periphery of the lower end portion of the block 6 so as to be adjacent to each other, and At this time, considering that the outer periphery is formed in an arc shape, consideration is given to minimizing the interference portion with the inner periphery of the block 6 as much as possible.

  Further, in the nut turning 7, as described above, since the tool 9 can be linked by introducing the nut 3 in the radial direction from the outside of the main body 61 as the block 6, the tip of the tool 9 can be inserted. The insertion holes 7a that allow the fitting of the insertion portions 9a are provided in the circumferential direction and in many cases at equal intervals.

  Incidentally, the shape of the tip insertion portion 9a of the tool 9 and the insertion hole 7a formed in the nut turning 7 is basically as long as it can be linked, but using the tool 9 When it is intended to prevent the occurrence of a so-called rattling failure when the nut driver 7 is rotated, the fitting that can suppress the rattling of the nut driver 7 through the tool 9 It is preferable that a shape capable of realizing the state is selected.

  The erection adjustment device according to the present invention formed as described above is in the connecting portion to the foundation 1 in the column 2 and is used as follows.

  That is, first, the female thread part 4a which is the lower end part of the extension rod 4 is connected to the thread part 11a which is the upper end part of the anchor bolt 11, and the posture in which the anchor bolt 11 is extended upward is embodied.

  Next, the main body 61 as the block 6 is placed on the base plate 21 via the upper end side of the extension rod 4 so that the upper end portion of the anchor bolt 11 and the lower end portion of the extension rod 4 are exposed to the shaft core portion.

  As a result, the upper end side of the extension rod 4 protrudes upward from the upper end of the block 6. Therefore, the center hole jack 5 is mounted on the upper end of the block 6 so that the upper end side of the extension rod 4 is inserted into the tip end side. Put.

  The center hole jack 5 and the upper end side of the extension rod 4 are connected from above the center hole jack 5 by the fastening means 8, that is, while allowing the extension rod 4 to swing relative to the center hole jack 5, The extension rod 4 is connected to the center hole jack 5 so as to be able to rise.

  At this time, the nut 3 that is screwed to the anchor bolt 11 and is in contact with the base plate 21 is provided on the condition that there is no mischievous play between the jack 5 and the extension rod 4. Loosen to allow the base plate 21 to swing relative to the foundation 1.

  Then, by driving the center hole jack 5 by manual operation such as using a ratchet wrench, a predetermined hydraulic pressure is applied to the center hole jack 5 and the extension rod 4 is pulled up.

  As a result, the base plate 21 is pushed downward in response to the extension rod 4 being pulled up. At this time, the column 2 connected to the base plate 21 is swung, that is, built-in. Will be adjusted.

  On the condition that it is confirmed that the column body 2 has been erected as shown in the design drawing by the series of operations and operations described above, the nut 3 is turned by rotating the nut turning 7, After it is confirmed that the tightening of the nut 3 has been completed, the removal of the erection adjustment device is practiced.

  By the way, the removal from the connection part with respect to the foundation 1 in the column body 2 of this erection adjustment device is sufficient if the procedure reverse to that described above including the fastening release by the fastening means 8 is sufficient.

  In view of the above, the erection adjusting device according to the present invention does not require a dedicated anchor bolt in addition to the original anchor bolt 11, and members constituting the erection adjustment device, for example, the block 6 Are not fixedly connected to the base plate 21 and the center hole jack 5 is also not fixedly connected to the block 6. Therefore, these members and a series of operations are unnecessary, and accordingly, the temporary cost is increased accordingly. It can be avoided.

  And, in the erection adjusting device according to the present invention, the erection adjustment device is connected to the upper end of the anchor bolt 11 and is disposed above the anchor bolt 11 in the extending direction of the anchor bolt 11. It is possible to make the area occupied by the adjusting device smaller than the area occupied by the base plate 21 through which the anchor bolt 11 penetrates. From this, the building adjusting device according to the present invention The so-called downsizing can be realized.

  Since the operation rod 55 is adjacent to the anchor bolt 11 in the lateral direction in the center hole jack 5, when the operation rod 55 is rotated using a tool such as a ratchet wrench, a column is provided. There is no risk of interference with reinforcing bars that may stand up around the body 2, which is advantageous in that the turning operation of the tool can be facilitated.

  As a result, workability is improved with respect to enabling adjustment of erection in the steel pillar body 2 erected at the lowermost stage, which is optimal for expecting improvement in versatility.

It is a figure which shows the erection adjustment apparatus by this invention in a partial cross section. It is a longitudinal cross-sectional view which shows a center hole jack.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foundation, such as foot 2 Column body 3 Nut 4 Extension rod 4a Female thread part 4b which is lower end part 4b Male screw part which is upper end side 5 Center hole jack 6 Block 61a Lower end part 7 Nut turning 9 Tool 11 Anchor bolt 11a Screw part 21 Base plate

Claims (3)

A pillar having an anchor bolt that extends upward in a thread portion that is implanted in the foundation and screwed with a nut, and a base plate that penetrates the thread portion of the anchor bolt while being continuously provided at the lower end of the pillar body. An extension rod in the connecting portion to the foundation in the body, which is formed coaxially with the anchor bolt and whose lower end is connected to the threaded portion of the anchor bolt and whose upper end extends in the axial direction of the anchor bolt, and this extension In an erection adjusting device having a center hole jack connected to the upper end side of the extension rod while penetrating the upper end side of the rod, the center hole jack is placed on the upper end while being placed on the base plate. There is a block, and the extension rod connected to the center hole jack is inserted into the shaft core portion, and is inserted inside the lower end portion. Built placed adjuster characterized by comprising a nut driver to interlocking the nut screwed on Kaboruto. The nut turning enables the connection of the tool by introducing the nut in the radial direction from the outside of the block, and the block allows the rotation of the nut connected to the nut turning in the rotation direction of the tool. Item 2. The building adjustment apparatus according to Item 1. 2. The erection adjustment device according to claim 1, wherein the center hole jack pulls up the extension rod by hydraulic action when the piston moves under the screw jack structure, and the piston is movable by a manual operation using a tool.

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