JP2001214517A - Device for connecting sill with conlumn of wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for connecting a sill with column of a wooden building for facilitating the work connecting the sill with the column at a construction site and firmly and rigidly connecting the sill with the column without requiring a ventilating opened to be separately provided in a continuous footing. SOLUTION: The device for connecting the sill and column of a wooden building comprises sill spacers and connecting metal fittings. Each of the connecting metal fittings comprises: a sill receiving fitting comprising a disc-like baseplate rotatably inserted into the sill spacer and having a rotating engagement part formed in a predetermined position, and a cylindrical nut part placed upright at the center the baseplate; a connecting bolt fastened to the sill receiving fitting; and a locking cylinder engaging a locking cylinder engagement part formed at the upper end of the connecting bolt. Each of the sill spacers has a through-hole bored in the upper surface thereof for passing the cylindrical nut part of the sill receiving fitting therethrough, and has formed therein a rotation opening having a hollow part thereinside into which the base plate is rotatably inserted, the rotation opening expensing the rotating engagement part to a side part of the spacer. After connection of a bearing column, the rotating engagement part is rotated to enable the sill and the column to be rigidly connected to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for joining a foundation and a column in a wooden building, and more particularly, to a foundation spacer mounted on a cloth foundation and supporting the foundation, and a load-bearing column erected on the foundation. The present invention relates to a joining device for a base and a pillar in a wooden building comprising a joining metal fitting for joining the base and the base.

[0002]

2. Description of the Related Art As a conventional metal fitting for a base and a column in a wooden building, there are known bonding devices described in Japanese Patent Application Laid-Open Nos. 8-177131, 10-147787 and 11-117403. is there.

[0003] The joint fitting described in Japanese Patent Application Laid-Open No. 8-177131 has a hexagonal bolt having one end threaded and a band-shaped concave portion wound around the peripheral side from the other end, and the hexagonal bolt pivotally attached to the inner peripheral surface. A metal receiving member having a threaded cylindrical body, and two locking pieces protruding from the substrate with a space between them, and a horizontal member formed so as to clamp the strip-shaped concave portion of the hexagon bolt between the locking pieces. This is a joint metal fitting for a building comprising a hexagonal nut having a hexagonal hole for inserting a hexagonal bolt, with a difference metal fitting.

[0004] Further, in the joint fitting described in Japanese Patent Application Laid-Open No. H10-147987, a first structural body and a second structural body are brought into contact with the lower end surface of the first structural body perpendicular to the upper side surface of the second structural body. A joining metal fitting which is brought into contact with and joined with a cylindrical connecting tool in which an inner cylinder is rotatably inserted into an outer cylinder, and a distal end engaging portion which fits inside the cylinder of the cylindrical connecting tool. The cylindrical connecting fitting is inserted into a lateral hole formed in the first structure from a side surface of the first structure, and the connection shaft is The lower end surface of the first structure is inserted into the vertical hole formed in the first structure from the lower end face into the vertical hole communicating with the horizontal hole, and the rear end of the connection shaft body is inserted into the vertical hole. It is a joint fitting that penetrates and fixes a vertical hole formed in the two structures.

[0005] In addition, the joint fitting described in Japanese Patent Application Laid-Open No. H11-117403 has a screw tube inserted into one of a pair of woods joined to each other, and the head of a connection bolt screwed to the screw tube is attached to the joint tube. The other one corresponding to the one is engaged in an assembling hole provided with an end face opened to the other one, and a slit along a longitudinal direction is formed in a receiving hole provided in the other one orthogonal to the assembling hole. This is a wood joining device in which the provided fixing cylinder is fitted, and the head of the connection bolt engaged with the slit is engaged with the fixing cylinder.

[0006]

However, the joint fitting described in Japanese Patent Application Laid-Open No. H8-177131 has a hexagonal bolt insertion hole of a pillar, and a hexagonal nut having a hexagonal hole and a washer interposed therebetween to protrude above the base. The hexagonal bolt is inserted, the column is raised on the upper surface of the base, and the horizontal metal fitting is inserted into the horizontal metal fitting insertion hole of the column. The hex nut is rotated with a tool such as a wrench to pull the column to the base and tighten it, so that the base and the column are joined via a hex nut and washer. However, there is a problem that a gap is formed at a joint between the base and the column, and the base and the column are not tightly joined.

Further, in the joint fitting described in Japanese Patent Application Laid-Open No. H10-147987, the tapered surface formed on the outer cylinder pushes up the upper end surface of the fitting groove of the connection shaft, and the tip engaging portion pulls upward. As a result, the column in which the tubular connector is inserted and the base for burying and fixing the anchor member are tightened, and by rotating the inner cylinder about half a turn,
The locking notch formed in the inner cylinder engages with the engaging groove in the distal end engaging portion to ensure the tightness. However, the tightness between the base and the column depends on each member. The formation position of the vertical hole and the horizontal hole formed in the hole, that is, the processing accuracy of the member, the degree of screwing of the connecting shaft to the insert nut, that is, the mounting accuracy, and the inclination of the tapered surface formed in the outer cylinder, that is, to the base of the column At the same time, the joining work between the base and the column is complicated, and at the same time, the tubular connector is composed of two members, an outer tube and an inner tube. Since this requires two steps of rotation, there is a problem in terms of usability.

In the joining apparatus described in Japanese Patent Application Laid-Open No. H11-117403, the fastening cylinder is formed in a bottomed cylindrical state having a semicircular cross section in which the head of the connection bolt can be engaged. And a slit having a width smaller than the diameter of the head is provided in a straight wall portion of the cavity portion from the distal end toward the proximal end portion, and the straight wall is formed of the head of the connection bolt. And a taper that gradually separates from the distal end side of the connection bolt in the direction of the proximal end from the distal end of the screw cylinder to the straight wall, which is also described above. At the same time, there is a problem that the joining operation described in Japanese Patent Application Laid-Open No. H10-147987 is complicated, and at the same time, the operation of manufacturing the fastening cylinder is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and makes it easy to join a foundation and a column at a construction site, securely and firmly joins the foundation and the column, and separately ventilates the fabric foundation. An object of the present invention is to provide a joining device for a foundation and a pillar in a wooden building, which does not require a mouth.

[0010]

According to the present invention, the following technical measures have been taken to solve the above-mentioned problems.

[0011] That is, the connection between the base and the column in the wooden building, which comprises the base spacer mounted on the cloth base and supporting the base, and the joint fitting for connecting the load-bearing column erected on the base and the base. An apparatus, wherein the joining fitting is:
A disk-shaped base plate comprising a base receiving member, a connecting bolt, and a locking cylinder, wherein the base receiving member is inserted into the base spacer and a rotation engaging portion is formed at a predetermined position; And a cylindrical nut portion which is inserted into a vertical hole pre-drilled at a predetermined position of the load-bearing column, has an internal thread formed on one end inner peripheral surface, and has the other end erected at the center of the base plate. A connecting bolt is formed at one end with a male screw that is screwed into the female screw of the cylindrical nut of the base receiving member, and is fastened to the cylindrical nut. The locking cylinder is configured to be inserted into a vertical hole of the column, and the locking cylinder is inserted into a horizontal hole formed so as to be orthogonal to the vertical hole of the load-bearing column at a predetermined position. The engagement groove that engages and locks the joint The connecting bolt and the load-bearing column are configured to be joined, and the base spacer is provided with a through-hole at the center of the upper surface, through which the cylindrical nut portion of the base bracket is inserted, A rotation opening for exposing a rotation engagement portion formed at a predetermined position of the base plate of the base receiving bracket is formed on the side of the hollow portion for rotatably inserting the base plate therein. A joining device for a base and a pillar in a wooden building, which is characterized by being constructed as described above.

The locking cylinder engaging portion is a concave portion having a predetermined width and an elliptical cross section formed opposite to a predetermined position below one end of the connection bolt, and the locking cylinder includes:
At the predetermined position in the longitudinal direction of the side surface of the cylindrical body, the recess is opened at the insertion opening so that the recessed portion of the locking cylinder engaging portion can be inserted and clamped from the longitudinal direction. An insertion passage that is somewhat narrower than the wall thickness and communicates with the insertion opening is formed. At the end of the insertion passage, a holding hole that fits into the recessed portion of the engaging cylinder engaging portion and holds it is formed. The mating groove is formed with a predetermined length, and the rotating engagement portion formed on the disc-shaped base plate of the base receiving member is a gear-shaped uneven portion provided around the base plate. The base and the column in the wooden building, characterized in that the base and the load-bearing column are tightened via the connection bolt by turning the base plate by applying a tool such as a chisel. The joining device was constructed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a cross-sectional view showing a joint between a base and a column using a joint fitting and a base spacer according to the present embodiment. FIG. 2A is a front view showing the base fitting, and FIG. 2B is a plan view thereof. FIG. 3A is a front view showing a connecting bolt, and FIG. 3B is a side view thereof. FIG. 4A is a bottom view showing the locking cylinder,
(B) is the side view. FIG. 5A is a plan view showing a base spacer, FIG. 5B is a side view showing a side part on which a rotation opening is formed, and FIG. 5C is a cross-sectional view of the base spacer taken along line AA. FIG. FIG. 6 is a schematic cross-sectional view showing a state where the base fitting is inserted into the base spacer.

As shown in FIG. 1, a joining apparatus 1 for a base and a column in a wooden building according to the present embodiment includes
Base spacer 3 mounted on the base 0 and supporting the base 101
And a load-bearing column 102 erected on the upper surface of the base 101
And a joint fitting 5 for joining the base 101 and the base 101.

An anchor bolt 103 is attached to the cloth base 100.
Is erected, and the fabric base 100 is
And the base 101 are fastened by the nut 104, and the gap formed by the base spacer 3 functions as a ventilation port. Therefore, it is not necessary to separately form a ventilation port in the cloth base 100.

The joining fitting 5 is composed of a base receiving fixture 7, a connecting bolt 9, and a locking cylinder 11, and the base 101 and the load-bearing column 102 are securely and firmly joined by linking the respective members. It has become.

As shown in FIG. 2, the base metal fitting 7 has a cylindrical nut portion 15 at the center of a disk-shaped base plate 13.
Is erected. A rotation engaging portion 17 is formed on the outer peripheral edge of the base plate 13, and in the present embodiment, is provided as a gear-shaped concave and convex portion, and a tool such as a chisel is addressed to the concave portion. It is formed so that the cylindrical nut portion 15 can be rotated by rotating the 13. As shown in FIG. 1, the base plate 13 is rotatably inserted into a hollow portion 37 of the base spacer 3, which will be described later, and is exposed through a rotation opening 19 formed on one side of the base plate 13. Have been. The cylindrical nut portion 15 erected at the center of the base plate 13 has a female screw 21 formed at a predetermined length on the circumferential surface of the upper end, and is fixed to the base plate 13 at the lower end. Through the through hole 23 formed in the base 101 and the vertical hole 101a formed in the base 101, and is inserted into the vertical hole 102a formed in the load-bearing column 102. By increasing the ratio of the cylindrical nut portion 15 in the vertical hole 102a, that is, increasing the length of the cylindrical nut portion 15, the joining strength between the base 101 and the load-bearing column 102 can be increased.

As shown in FIG. 3, the connecting bolt 9 is provided at its lower end with the female screw 2 of the cylindrical nut portion 15 of the base fitting 7.
1 is formed to a predetermined length, is fastened to the cylindrical nut portion 15, and has a locking cylinder engaging portion 27 formed at the upper end thereof.
02a. The engaging cylinder engaging portion 27 has a cross section formed to face a predetermined position below the upper end of the connecting bolt 9 and has an elliptical concave section.
The base 101 and the load-bearing column 102 are joined by engaging with the first engagement groove 29. As will be described later, depending on the width of the concave portion formed in the locking cylinder engaging portion 27 and the degree of fastening of the connecting bolt 9 by the rotation of the rotating engaging portion (irregular portion) 17,
The displacement in processing the lateral hole 102b formed in the load bearing column 102 and the displacement in mounting the connecting bolt 9 are corrected.

As shown in FIG. 4, the locking cylinder 11 is provided with a locking cylinder engaging portion (recess) 2 at a predetermined position in the longitudinal direction of the side surface of the cylindrical body.
The insertion passage 31 is expanded at the insertion opening 31 so that the insertion passage 7 can be inserted and clamped from the longitudinal direction, and the insertion passage 33 is somewhat narrower than the thickness of the locking cylinder engaging portion (recessed portion) 27. At the end of the insertion passage 33, an engagement groove 29 is formed, which is formed at the end of the insertion passage 33, and is formed with a holding hole 35 that fits into and engages with the locking cylinder engaging portion (recessed portion) 27. It has a predetermined length. The locking cylinder 11 is a support column 10
2 is inserted into a horizontal hole 102b drilled so as to be orthogonal to a vertical hole 102a drilled at a predetermined position, and a holding hole 35 of an engaging groove 29 formed in the latching cylinder 11 and a latching cylinder. The base 101 and the load-bearing column 102 are joined by fitting the engagement portion (recessed portion) 27.

The base spacer 3 is, as shown in FIG.
This is a box-shaped resin molded product having no bottom portion, which is placed on the cloth base 100, carries the base 101, and
Since the gap formed between 00 and the base 101 functions as a ventilation port, the ventilation port conventionally formed in the cloth base 100 is unnecessary. Base spacer 3
In the center of the upper surface, a through-hole 23 that penetrates the cylindrical nut portion 15 of the joint fitting 5 from below is formed, and a hollow portion 37 into which the base plate 13 can be rotatably inserted is formed inside the through-hole 23. The hollow portion 37 communicates with the through hole 23. The side of the base spacer 3 is shown in FIG.
(B) As shown in FIG.
The outer levee portion 39 is in contact with the outer levee portion 39, and one side portion of the outer levee portion 39 has a rotation engaging portion (an uneven portion) of the base plate 13.
A rotation opening 19 for exposing 17 is formed. Inside the outer levee portion 39, an annular inner levee portion 41 abutting on the base plate 13 inserted into the hollow portion 37 is protruded from above, and in the present embodiment, the annular inner levee portion 41 is provided.
a, 41b, and 41c are formed at three places. As shown in FIG. 6, the contact surface between the inner levee portion 41 and the base plate 13 is minimized so that the rotation resistance with the base plate 13 can be reduced. , So that the required strength can be maintained.

Next, a method of joining a base and a column using the joining apparatus 1 according to the present embodiment having the above-described configuration and its effects will be described with reference to FIG.

First, a vertical hole for penetrating the anchor bolt 103 and a vertical hole 101a for penetrating the base receiving member 7 are preliminarily formed in the base 101 at predetermined positions. A vertical hole 102a for inserting the connecting bolt 9 and a horizontal hole 102b for inserting the locking cylinder 11 are formed at predetermined positions.

First, the engaging cylinder engaging portion 27 of the connecting bolt 9 is positioned in the cylindrical nut portion 15 of the base receiving member 7 at the outer edge of the lateral hole 102b formed in the load-bearing column 102 in the longitudinal direction. Then, the connecting bolt 9 is fastened. Next, the base fitting 7 to which the connecting bolt 9 is fastened is inserted from below the base spacer 3 into the through hole 23 formed in the center of the upper surface of the base spacer 3 from the tip of the connecting bolt 9, and the base spacer The base plate 13 of the base fitting 27 is inserted into the hollow portion 37 formed inside the base 3 so as to be seated. And it was inserted into the base spacer 3,
The base receiving member 7 to which the connecting bolt 9 is fastened is placed at a predetermined position on the cloth foundation 100 such that the opening 19 for rotation of the base spacer is directed inward of the building. this is,
This is to prevent the rotation engaging portion 17 from being exposed to the outside of the building. Next, through-holes for anchor bolts drilled in the base 101 were inserted into the anchor bolts 103 erected on the cloth foundation 100, and were also inserted into the base spacers 3 placed on the cloth foundation 100. The vertical hole 101a formed in the base 101 is simultaneously inserted into the base receiving member 7 with the connecting bolt 9 and the cloth base 10 is fixed by the anchor bolt 104.
0 and the base 101 are screwed. Then, the vertical hole 102a formed at the lower end of the load-bearing column 102 is inserted into the cylindrical nut portion 15 to which the connecting bolt 9 is fastened, which is inserted so as to protrude from the base 101, and the load-bearing column 102 is erected. You.
Next, the locking cylinder 11 is inserted from one of the lateral holes 102b formed in the load-bearing column 102 through the insertion opening 31 of the engagement groove 29 so that the engagement groove 29 is on the lower side. The insertion opening 31 of the engagement groove 29 is inserted into the locking cylinder engaging portion (recessed portion) 27 protruding into the lateral hole 102b, inserted while pushing the insertion passage 33, and is clamped by the clamping hole 35. , The base 101 and the bearing column 102 are joined. The insertion passage 33 formed in the engagement groove 29 is formed to be somewhat narrower than the thickness of the locking cylinder engaging portion (recessed portion) 27, and is provided at the end of the insertion passage 33 at the locking cylinder engaging portion ( Since the holding hole 35 is formed so as to fit in and hold the recess 27, the engaging cylinder engaging portion (recess) 2 is formed.
7 and the engaging groove 29 of the locking cylinder 11 are simply and tightly engaged. Next, in order to make the connection between the base 101 and the load-bearing column 102 more firm, a rotation engaging portion (concavo-convex portion) 1 exposed from a rotation opening 19 formed in the base spacer 3.
7 is rotated in a direction to fasten the connection bolt 9 using a tool such as a chisel. As a result, the connecting cylinder 9 is engaged with the engaging cylinder engaging portion (recessed portion) 27 and the holding hole 35 so that the engaging cylinder 11 is engaged.
Is pulled toward the base 101, and the base 101 and the
2 can be more firmly joined. In addition, a locking cylinder engaging portion (recessed portion) 27 of the connecting bolt 9 is fastened to the cylindrical nut portion 15 of the base receiving member 7 with a slight deviation from a predetermined position in a lateral hole 102b formed in the load-bearing column 102. Even if it has been done, or if the processing position of the horizontal hole 102b has shifted slightly,
As long as the engaging cylinder engaging portion (concave portion) 27 can be inserted into the first engaging groove 29, a tool such as a chisel is applied to the rotating engaging portion (concavo-convex portion) 17. Is rotated to fasten the connection bolt 9, whereby the base 101 and the load bearing column 102
And a firm connection with the substrate. That is, depending on the width of the concave portion formed in the locking cylinder engaging portion 27 and the degree of fastening of the connecting bolt 9, the displacement of the connecting bolt 9 and the processing of the lateral hole 102 b of the load-bearing column 102 are different. Is eliminated up to the width of the recess. Finally, locking cylinder 1
The reinforcing cap 45 is fitted to both ends of the base 1 to complete the joining operation of the base 101 and the load bearing column 102.

Therefore, according to the present invention, the base and the load-bearing column are directly joined using the above-described joining device, instead of being joined via the hexagon nut having the hexagonal hole and the washer. Thereby, the base and the column can be tightly joined.

The locking cylinder engaging portion is a concave portion having a predetermined width and an elliptical cross section formed opposite a predetermined position below one end of the connecting bolt, and the locking cylinder is formed on a side surface of the cylindrical body. At a predetermined position in the longitudinal direction, the opening is expanded at the insertion opening so that the recessed portion of the engaging cylinder engaging portion can be inserted and clamped from the longitudinal direction, and is somewhat narrower than the thickness of the engaging cylinder engaging portion. An insertion passage communicating with the insertion opening is formed, and at the end of the insertion passage, a holding hole is formed to fit into and engage with the concave portion of the locking cylinder engaging portion, and the base plate of the base receiving member is formed. Is rotatably inserted into a base spacer, and a rotation engaging portion formed on the base plate is a gear-shaped uneven portion provided around the base plate, and a tool such as a chisel is provided on the uneven portion. By rotating the base plate. Since the base and the load-bearing column can be tightly connected via the connecting bolts, the support tube can be pierced as long as the locking tube engaging portion is inserted into the engaging groove formed in the locking tube. Eliminates problems caused by misalignment of the tapered surface formed on the locking cylinder, such as misalignment of the installed horizontal hole and misalignment of the fastening position between the base bracket and the connection bolt. A solid connection between the base and the pillar can be made without performing any work.

Further, since the engaging cylinder has only the above-described engaging groove formed at a predetermined position on the side surface of the cylindrical body, the manufacturing operation thereof is easy.

It should be noted that the present invention is not limited to the above-described embodiment, and design changes can be made as appropriate without departing from the spirit of the present invention.

[0029]

As described above, since the present invention is configured as described above, the base and the load-bearing column can be joined without exposing the joining device to the outside, and the workability is good.

The base receiving member is rotatably inserted into the base spacer, and is formed on a locking tube engaging portion (recessed portion) and a locking tube formed on a connecting bolt fastened to the base receiving member. The base and the load-bearing column are joined and tightened by engaging with the engaged engagement groove, so that as long as the engaging cylinder engaging portion (recess) can be inserted into the engagement groove, Eliminates problems such as misalignment of the horizontal hole drilled in the load-bearing column and displacement of the fastening position between the base bracket and the connection bolt, which cannot be handled by the tapered surface formed in the locking cylinder. The base and the column can be firmly joined without removing and remounting.

Further, since the joining device according to the present invention is configured as an integral unit with the base spacer, it is not necessary to separately provide a ventilation port on the cloth foundation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a joint state between a base and a column using a joint fitting and a base spacer according to the present embodiment.

FIG. 2A is a front view showing a base fitting.
(B) is the plan view.

FIG. 3A is a front view showing a connecting bolt.
(B) is the side view.

FIG. 4A is a bottom view showing a locking cylinder. (B)
Is the side view.

FIG. 5A is a plan view showing a base spacer. (B) is a side view showing the side part in which the opening for rotation was formed.

FIG. 6 is a schematic cross-sectional view showing a state where a base fitting is inserted into a base spacer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joining apparatus 3 Base spacer 5 Joining fixture 7 Base receiving fixture 9 Connecting bolt 11 Locking cylinder 13 Base plate 15 Cylindrical nut part 17 Rotation engagement part (irregular part) 19 Rotation opening part 21 Female screw 23 Through hole 25 Male screw 27 Locking cylinder engaging portion (concave portion) 29 Engagement groove 31 Insertion opening 33 Insertion passage 35 Holding hole 37 Hollow portion 39 Outer levee portion 41, 41a, 41b, 41c Inner levee portion 45 Reinforcement cap 100 Cloth foundation 101 Base 101a, 102a Vertical hole 102 Bearing column 102b Horizontal hole

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D046 AA13 AA14 2E001 DB02 EA09 FA02 FA21 NA03 NC01 ND01 2E125 AA04 AA18 AB12 AC23 AG03 AG04 AG12 AG13 BB08 BB09 BB19 BB24 BB25 BB28 BB30 BB33 BD01 BD03 BE07 BF08 CA01

Claims (2)

[Claims] 1. A joint between a base and a pillar in a wooden building, comprising: a base spacer mounted on a cloth foundation and supporting the base; and a joint fitting for connecting the load-bearing column erected on the base and the base. In the apparatus, the joining metal fitting includes a base metal fitting, a connecting bolt, and a locking cylinder, and the base metal fitting is inserted into the base spacer to form a rotation engaging portion at a predetermined position. Disk-shaped base plate, a cylindrical shape which is inserted into a vertical hole pre-drilled at a predetermined position of the base and the load-bearing column, has a female screw formed on one inner peripheral surface, and has the other end erected in the center of the base plate. A nut is formed, and the connection bolt is formed at one end with a male screw that is screwed to the female screw of the cylindrical nut of the base receiving member, and is fastened to the cylindrical nut.
A locking cylinder engaging portion is formed at the other end and is configured to be inserted into a vertical hole of the load-bearing column, and the locking cylinder is formed so as to be orthogonal to the vertical hole of the load-bearing column at a predetermined position. An engagement groove that is inserted into the hole and engages with and engages with the engaging cylinder engaging portion of the connection bolt is formed, and is configured to be able to join the connection bolt and the load-bearing column, The base spacer has a through hole in the center of the upper surface, through which the cylindrical nut portion of the base metal fitting is inserted, and a hollow portion for rotatably inserting the base plate inside the base spacer,
A base-column joining apparatus for a wooden building, wherein a turning opening exposing a turning engaging portion formed at a predetermined position of a base plate of the base fitting is formed on the side portion. 2. The locking cylinder engaging portion is a concave portion having a predetermined width with an elliptical cross section formed opposite to a predetermined position below one end of the connection bolt, and the locking cylinder includes: At the predetermined position in the longitudinal direction of the side surface of the cylindrical body, the recess is opened at the insertion opening so that the recessed portion of the locking cylinder engaging portion can be inserted and clamped from the longitudinal direction. An insertion passage that is somewhat narrower than the wall thickness and communicates with the insertion opening is formed. At the end of the insertion passage, a holding hole that fits into the recessed portion of the engaging cylinder engaging portion and holds it is formed. The mating groove is formed with a predetermined length, and the rotating engagement portion formed on the disc-shaped base plate of the base receiving member is a gear-shaped uneven portion provided around the base plate. By applying a tool such as a chisel and rotating the base plate 2. The joining device of a base and a pillar in a wooden building according to claim 1, wherein the base and the load-bearing column are tightened via the connecting bolt.