JP4778329B2 - Column fixing jig - Google Patents

Description

  The present invention relates to a column fixing jig for fixing a column to the upper surface of a foundation.

  When fixing a wooden column to a foundation, conventionally, the base wood is first fixed with anchor bolts, and the column is often fixed to the foundation via this foundation.

Various techniques for joining the pillar and the foundation have been proposed. For example, a technique for fixing a hole-down hardware fixed to the side surface of the pillar to the foundation with an anchor bolt is known (for example, Patent Document 1).
In addition, unlike the technique described in Patent Document 1, the column base is installed and fixed on the foundation without using a base between the column and the foundation, and the column base of the column is fixed to the column base. The technique which joins a pillar and a foundation by this is also known (for example, refer to patent documents 2).
JP 2001-214914 A Japanese Patent Laid-Open No. 11-200511

  By the way, when a building collapses due to an earthquake, a typhoon, or the like, there is a case where pulling out a pillar or a base of the building is one of the causes. For this reason, it is possible to further increase the fixing strength of the column or increase the rigidity of the column base metal (hereinafter referred to as the column fixing jig) as compared with the technologies described in Patent Documents 1 and 2 above. Development of was strongly desired.

  An object of the present invention is to provide a column fixing jig that can firmly fix a column on the foundation of a building and has high rigidity.

In the column fixing jig A for fixing the column 2 to the upper surface of the foundation 1, for example, as shown in FIGS.
The first metal fitting 10 fixed to the upper surface of the foundation 1, the second metal fitting 20 attached to the column base 2 a of the pillar 2, and connecting means for connecting the first metal fitting 10 and the second metal fitting 20. ,
The first metal fitting 10 is provided on a plate-like first metal fitting body 11 in which an insertion hole 11a for inserting an anchor bolt 1a protruding from the foundation 1 is formed, and an upper surface of the first metal fitting body 11. A support portion 12 for supporting the second metal fitting 20 at a predetermined height;
The second metal fitting 20 is provided on a plate-like second metal fitting body 21 formed with a bolt hole 21a facing the insertion hole 11a of the first metal fitting main body 11, and an upper surface of the second metal fitting main body 21, A column base fixing part 22 to which the column base 2a is fixed,
The connecting means is a connecting high nut 30 that is screwed into an upper end portion of the anchor bolt 1a and a lower end portion of a fixing bolt 23 inserted into a bolt hole 21a of the second metal fitting body 21. To do.

According to the first aspect of the present invention, after the anchor bolt 1a protruding from the foundation 1 is inserted into the insertion hole 11a of the first metal fitting 10, the connecting high nut 30 is screwed into the anchor bolt 1a and tightened. Thus, the first metal fitting 10 can be firmly fixed to the foundation 1, and the second metal fitting 20 can be fixed by screwing the fixing bolt 23 inserted into the bolt hole 21a of the second metal fitting 20 into the connecting high nut 30 and tightening. It can be firmly fixed to the first metal fitting 10. The column base 2 a is firmly fixed to the second metal fitting 20 by the column base fixing portion 22.
Therefore, the pillar 2 can be firmly fixed on the foundation 1 and the first metal fitting 10 and the second metal fitting 20 can be firmly connected to be fixed to the foundation integrally, so that the rigidity of the pillar fixing jig A is increased.

  Furthermore, a support portion 12 that supports the second metal fitting 20 at a predetermined height is provided on the upper surface of the first metal fitting main body 11, so that the first metal fitting main body 11 and the second metal fitting main body 21 can be connected to each other. Since a space for inserting the connecting high nut 30 can be secured in between, the connecting high nut 30 can be easily screwed into the upper end portion of the anchor bolt 1a.

The invention according to claim 2 is, for example, as shown in FIG. 2, in the column fixing jig A according to claim 1,
An auxiliary nut 24 screwed into the fixing bolt 23 is provided on the lower surface side of the second metal fitting body 21.

  According to the second aspect of the present invention, since the auxiliary nut 24 screwed into the fixing bolt 23 is provided on the lower surface side of the second metal fitting body 21, the auxiliary nut 24 is tightened. Thus, the fixing bolt 23 can be firmly fixed to the second metal fitting body 21. For example, when receiving force from the outside, the fixing bolt 23 can be prevented from wobbling or deforming.

For example, as shown in FIGS. 1 and 3, the invention described in claim 3 is a column fixing jig A according to claim 1 or 2.
The column base fixing portion 22 includes a fixing plate 22a that is disposed at a predetermined interval along the circumferential direction of the column 2 and that is fixed to the outer peripheral portion of the column base 2a.

  According to invention of Claim 3, the said column base fixing | fixed part 22 is arrange | positioned at predetermined intervals along the circumferential direction of the said column 2, and the fixing plate 22a fixed to the outer peripheral part of the said column base 2a is provided. Since the fixing plate 22a is fixed to the outer periphery of the column base 2a, the column base 2a can be securely fixed to the second metal fitting 20.

For example, as shown in FIGS. 1 and 3, the invention described in claim 4 is a column fixing jig A according to claim 3.
The fixing plate 22a is formed in a substantially L shape in plan view,
The column base 2a is formed with a notch 3 having a fixing surface 3a having a substantially L-shape in a plan view.
The fixing plate 22a is disposed in the notch 3, and the fixing plate 22a is fixed to the fixing surface 3a.

  According to the fourth aspect of the present invention, the fixing plate 22a formed in a substantially L shape in plan view is disposed in the cutout portion 3 having the fixing surface 3a in a substantially L shape in plan view, and this fixing. Since the plate 22a is fixed to the fixed surface 3a, the fixed plate 22a is fitted into the notch 3, and the fixed plate 22a is fixed to the fixed surface 3a. It can be more securely fixed to the second metal fitting 20.

As for invention of Claim 5, as shown in FIG. 3, for example, in the column fixing jig A of Claim 4,
The bolt hole 21a formed in the second metal fitting body 21 is located in the notch 3 in a plan view.

  According to the fifth aspect of the present invention, the bolt hole 21a formed in the second metal fitting body 21 is located in the cutout portion 3 in a plan view, so that the work for tightening the fixing bolt 23 is performed. Space can be secured. Thereby, the first metal fitting 10 and the second metal fitting 20 can be more reliably and firmly connected.

According to the present invention, after the anchor bolt protruding from the foundation is inserted into the insertion hole of the first metal fitting, the first metal fitting is firmly fixed to the foundation by screwing and tightening the connecting high nut to the anchor bolt. In addition, the second metal fitting can be firmly fixed to the first metal fitting by screwing and fastening the fixing bolt inserted into the bolt hole of the second metal fitting into the high nut for connection. The column base is firmly fixed to the second metal fitting by the column base fixing portion.
Therefore, the column can be firmly fixed on the foundation, and the first metal fitting and the second metal fitting can be firmly connected to be fixed to the foundation integrally, so that the rigidity of the column fixing jig is increased.

  Hereinafter, an embodiment of a column fixing jig A according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the column fixing jig A of the present embodiment is for fixing the column 2 to the upper surface of the foundation 1, and a first metal fitting 10 fixed to the upper surface of the foundation 1, It consists of the 2nd metal fitting 20 attached to the column base 2a of the said pillar 2, and the connection means which connects these 1st metal fittings 10 and the 2nd metal fitting 20. As shown in FIG.

  Here, the foundation 1 is a concrete foundation, and anchor bolts 1a are implanted so as to protrude upward. In the present embodiment, four anchor bolts 1 a are planted, and these anchor bolts 1 a are arranged corresponding to the positions of the four corners of the first metal fitting 10. Further, corresponding to the number of anchor bolts 1a, holes and members described later are appropriately configured.

  The pillar 2 is a wooden pillar, and is made of, for example, natural wood or laminated wood. In this embodiment, a column of laminated material is used, the column main body 2b is formed in a square column shape, and the column base 2a is formed in a predetermined shape (described later). Further, the column main body 2b of the present embodiment is formed in a quadrangular column shape as described above, but is not limited thereto, and may be, for example, a column shape.

  In addition, the laminated lumber, for example, lamina obtained by cutting raw wood such as imported foreign timber, small timber, etc., the fiber direction is almost parallel to each other, the thickness, width and length of It is formed as a square or thick plate by laminating and bonding in the direction.

  Next, as shown in FIG. 1, the first metal fitting 10 includes a plate-like first metal fitting body 11 in which an insertion hole 11a for inserting an anchor bolt 1a protruding from the foundation 1 is formed. A support part 12 is provided on the upper surface of the one metal fitting body 11 and supports the second metal fitting 20 at a predetermined height.

  The first metal fitting body 11 is a rectangular plate having substantially the same outer dimensions as the pillar body 2b. The insertion hole 11a is formed in the first metal fitting body 11 so as to correspond to the position where the anchor bolt 1a is implanted. That is, it is formed at the four corners of the first metal fitting body 11.

  The support portion 12 is provided with a plurality of support legs 12 a set at a predetermined height so as to intersect vertically and horizontally on the upper surface of the first metal fitting body 11. The second metal fitting 20 can be supported with good balance.

  Next, as shown in FIG. 1, the second metal fitting 20 includes a plate-like second metal fitting body 21 formed with a bolt hole 21a facing the insertion hole 11a of the first metal fitting body 11, and the second metal fitting 21. A column base fixing portion 22 is provided on the upper surface of the metal fitting main body 21 and to which the column base 2a is fixed.

  The second metal fitting body 21 is a square plate having substantially the same outer dimensions as the column main body 2b and the first metal fitting 10. In addition, the bolt hole 21a is provided opposite to the insertion hole 11a as described above, that is, the bolt hole 21a of the second metal fitting body 21 corresponds to the position where the anchor bolt 1a is implanted. It is formed at the four corners.

A fixing bolt 23 to be described later is inserted into the bolt hole 21a. As shown in FIG. 2, an auxiliary nut 24 screwed into the fixing bolt 23 is provided on the second metal fitting body 21. It is provided on the lower surface side.
That is, by tightening with the auxiliary nut 24, the fixing bolt 23 can be firmly fixed to the second metal fitting body 21, so that, for example, when the force is applied from the outside, Deformation and the like can be prevented.

As shown in FIGS. 1 and 3, the column base fixing portion 22 includes a fixing plate 22 a that is arranged at a predetermined interval along the circumferential direction of the column 2 and is fixed to the outer peripheral portion of the column base 2 a. ing.
That is, in the present embodiment, the fixing plate 22a is formed in a substantially L shape in plan view, and the column base 2a has a notch portion 3 having a fixing surface 3a in a substantially L shape in plan view. The fixing plate 22a is disposed in the notch 3, and the fixing plate 22a is fixed to the fixing surface 3a.

  As a result, the fixing plate 22a is fitted into the notch 3, and the fixing plate 22a is fixed to the fixing surface 3a. It can be securely fixed.

  In addition, although not shown in figure, the cover material for covering this notch part 3 is provided in the said notch part 3. As shown in FIG. As a result, the unevenness in the vicinity of the column base 2a is reduced, so that, for example, it is easy to provide a finished surface material or the like on the column 2 and the workability can be improved.

Further, as a means for fixing the fixing plate 22a, as shown in FIG. 1, the fixing plate 22a is inserted between opposing holes (not shown) of the adjacent fixing plates 22a, and the column base 2a of the column 2 is moved in a predetermined direction. There are a plurality of insertion bolts 22b and a plurality of nuts 22c provided so as to penetrate therethrough.
Further, the fixing means of the present embodiment is as described above, but is not limited to this, and can be appropriately changed according to the shape of the column base fixing portion 22, the shape of the column base 2a, and the like.

On the other hand, as shown in FIG. 3, the bolt hole 21 a formed in the second metal fitting body 21 is located in the cutout portion 3 in a plan view.
That is, as described above, the bolt holes 21a are formed at the four corners of the second metal fitting body 21 so as to correspond to the positions where the anchor bolts 1a are implanted and to face the insertion holes 11a. Yes. As a result, a working space for tightening the fixing bolt 23 can be secured, so that the first metal fitting 10 and the second metal fitting 20 can be connected more securely and firmly.

  In addition, although the column base fixing | fixed part 22 of this Embodiment was set as the above structures, it is not restricted to this. For example, when a column thinner than the column 2 is used, only the shape and size of the column base fixing part 22 are thin without changing the shape and size of the first metal fitting body 11 and the second metal fitting body 21. It may be changed according to the pillar, and can be changed as appropriate without departing from the gist of the present invention.

  Next, as shown in FIGS. 1 and 2, the connecting means is screwed into the upper end portion of the anchor bolt 1 a and the lower end portion of the fixing bolt 23 inserted through the bolt hole 21 a of the second metal fitting body 21. This is the connecting high nut 30.

The connecting high nut 30 is set to a height lower than the height of the support portion 12 and is high enough to be screwed to the upper end portion of the anchor bolt 1a and the lower end portion of the fixing bolt 23. Is set.
That is, with the connecting high nut 30 having such a height, a space of a predetermined height formed between the first metal fitting body 11 and the second metal fitting body 21 by the support portion 12 is used. Can be inserted easily and reliably. Therefore, it is easy to screw the connecting high nut 30 to the upper end of the anchor bolt 1a.

  Further, when providing the high nut 30 for connection, it is provided via a washer member 31 that prevents loosening and protects the surface of the first metal fitting body 11.

  Hereinafter, a method of joining the foundation 1 and the column 2 when the column fixing jig A as described above is used will be described with reference to the drawings.

That is, first, the first metal fitting 10 is placed on the upper surface of the foundation 1 so that the anchor bolt 1 a protruding from the foundation 1 is inserted into the insertion hole 11 a formed in the first metal fitting body 11.
And the said connection high nut 30 is screwed by the upper end part of the anchor bolt 1a penetrated by the said insertion hole 11a. At this time, a washer member 31 is provided between the first metal fitting body 11 and the connecting high nut 30.

Next, the second metal fitting 20 is placed on the support portion 12, and the fixing bolt 23 is inserted into the bolt hole 21 a formed in the second metal fitting body 21. At this time, an auxiliary nut 24 is provided on the lower surface side of the second metal fitting body 21, and a washer member 25 is provided between the second metal fitting body 21 and the head of the fixing bolt 23.
Then, the fixing bolt 23 is screwed onto the connecting high nut 30 and tightened to connect the first metal fitting 10 and the second metal fitting 20. Further, the auxiliary nut 24 is tightened.

Thereafter, the column base 2a of the column 2 is attached and fixed to the column base fixing portion 22 provided on the upper surface of the second metal fitting body 21. That is, the fixing plate 22a of the column base fixing portion 22 is disposed in the notch 3 formed in the column base 2a of the column 2, and the fixing plate 22a is fixed to the fixing surface 3a using the insertion bolt 22b. To do.
By the method as described above, the foundation 1 and the pillar 2 are joined, and thereby the joining strength between the foundation 1 and the pillar 2 can be strengthened.

  In the present embodiment, the column base 2a is fixed to the column base fixing portion 22 after the first metal fitting 10 and the second metal fitting 20 are connected. However, the present invention is not limited to this. While fixing the 1st metal fitting 10 to the foundation 1, the 2nd metal fitting 20 may be attached to the column base 2a of the pillar 2, and the 1st metal fitting 10 and the 2nd metal fitting 20 may be connected after that.

As described above, according to the present embodiment, the anchor bolt 1a protruding from the foundation 1 is inserted into the insertion hole 11a of the first metal fitting 10, and the connecting high nut 30 is screwed into the anchor bolt 1a. The first metal fitting 10 can be firmly fixed to the foundation 1 by tightening, and the fixing bolt 23 inserted through the bolt hole 21a of the second metal fitting 20 is screwed into the connecting high nut 30 and tightened to tighten the second metal fitting 20. Can be firmly fixed to the first metal fitting 10. The column base 2 a is firmly fixed to the second metal fitting 20 by the column base fixing portion 22.
Therefore, the pillar 2 can be firmly fixed on the foundation 1 and the first metal fitting 10 and the second metal fitting 20 can be firmly connected to be fixed to the foundation integrally, so that the rigidity of the pillar fixing jig A is increased.

It is a perspective view which shows the column fixing jig of this invention. It is a principal part enlarged view which shows the connection means in the pillar fixing jig of this invention, and its vicinity. It is a top view which shows one form of a column base fixing | fixed part.

Explanation of symbols

A Column fixing jig 1 Foundation 2 Column 10 First metal fitting 20 Second metal fitting 22 Column base fixing part 30 Connection means (high nut for connection)

Claims (5)

In the column fixing jig for fixing the column to the upper surface of the foundation,
A first fitting fixed to the upper surface of the foundation, a second fitting attached to the column base of the column, and a connecting means for connecting the first fitting and the second fitting,
The first metal fitting is provided on a plate-like first metal fitting body in which an insertion hole for inserting an anchor bolt protruding from the foundation is formed, and an upper surface of the first metal fitting main body. And a support portion that supports the height of
The second metal fitting is provided on a plate-like second metal fitting main body in which a bolt hole facing the insertion hole of the first metal fitting main body is formed, and an upper surface of the second metal fitting main body, and the column base is fixed. With a column base fixing part,
The column fixing jig, wherein the coupling means is a coupling high nut that is screwed into an upper end portion of the anchor bolt and a lower end portion of a fixing bolt inserted into a bolt hole of the second metal fitting body. . The column fixing jig according to claim 1,
A column fixing jig, wherein an auxiliary nut screwed to the fixing bolt is provided on the lower surface side of the second metal fitting body. In the column fixing jig according to claim 1 or 2,
The column fixing jig includes a fixing plate arranged at a predetermined interval along the circumferential direction of the column and fixed to the outer periphery of the column base. In the column fixing jig according to claim 3,
The fixing plate is formed in a substantially L shape in plan view,
The column base is formed with a notch portion having a substantially L-shaped fixed surface in plan view.
The fixing plate is disposed in the notch, and the fixing plate is fixed to the fixing surface. The column fixing jig according to claim 4,
The bolt fixing hole formed in the second metal fitting main body is located in the cutout portion in plan view.

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