JP2021011770A - Installation structure for wooden pillar - Google Patents

Abstract

To provide an installation structure for wooden pillars that can enhance installation strength.SOLUTION: In an installation structure for wooden pillars according to the present invention, a wooden pillar to be vertically installed to a supporting hole includes an area containing a rootstock, and the wooden pillar is vertically installed to the supporting hole in a state that the area containing the rootstock crosses over an aperture end part of the supporting hole as to a longitudinal direction of the wooden pillar. Preferably, the installation structure according to the present invention comprises a supporting device including: a baseplate to be firmly fixed on an installation plane of a base concrete and the like; a supporting cylinder that is installed on the baseplate and includes a supporting cylindrical main body whose upper part is preferably open; and a convex part provided on a central part of an area surrounded by the supporting cylindrical main body in an upper plane of the baseplate. The supporting cylindrical main body and the baseplate form the supporting hole, and the wooden pillar preferably includes a concave part whose base end plane is engaged with the convex part.SELECTED DRAWING: Figure 1

Description

The present invention relates to an installation structure of independent pillars such as torii gates and gates, large black pillars of houses, self-supporting pillar structures, and wooden pillars used for lanterns and the like.

The applicant of the present application has previously filed an application for an invention relating to a wooden pillar installation structure and obtained a patent (see Patent Document 1 below).

The invention described in Patent Document 1 (hereinafter referred to as patented invention) adjusts the posture of the base plate with respect to the base plate placed on the ground, the cylinder portion provided on the upper surface of the base plate, and the waste concrete. A plurality of wooden pillar support devices having an adjusting mechanism and an arm extending radially outward from the tubular portion, a base surrounding the plurality of wooden pillar support devices, and arms of the plurality of wooden pillar support devices. Corresponding to the connecting reinforcing bars, the base concrete placed in the base platform so as to cover the arms and the reinforcing bars while allowing access to the upper opening of the tubular portion, and the base end portion surrounded by the protective sheet. Among the gaps between the plurality of wooden pillars inserted into the cylinders of the wooden pillar support device, the outer peripheral surface of the protective sheet, and the inner peripheral surface of the cylinders, the upper part adjacent to the upper opening of the cylinders. It includes a granular filler filled in a region other than a portion, and a fixing material filled above the granular filler in the gap.

The patented invention is useful in that it is possible to extract the installed wooden pillars without destroying the foundation concrete, and further, it is possible to secure the supporting strength of the installed wooden pillars while reducing the thickness of the foundation concrete.

However, since the patented invention has a structure in which a plurality of wooden column support devices and reinforcing bars connecting the arms of the plurality of wooden column support devices are embedded in the foundation concrete, a single wooden column or a small number of trees It was not suitable for the installation of pillars and the installation of wooden pillars on the foundation concrete as a retrofit.

By the way, the timber used as the wooden pillar is obtained by cutting down the base end portion of the planted tree and sawing it, but conventionally, the trunk region located above the root stock region of the planted tree The part is used as timber.

Specifically, as shown in FIG. 3, the planted tree 200 includes a root stock-containing region 10a including a ground surface portion 2100 located on the ground surface GL, and a root region 10c extending from the lower end of the root stock-containing region 10a into the ground. It has a trunk region 10b extending upward from the upper end of the root stock-containing region 10a.

The root stock-containing region 10a has a root stock equivalent region 10a- (1) and a root stock transition region 10a- (2).

The root stock equivalent region 10a- (1) is only a distance of 1.5 × D from the ground surface portion 210, where D is the reference diameter of the ground surface portion 210 located on the ground surface GL in the planted tree 200. It is a region sandwiched by the upper end position 211 of the root stock equivalent region located above and the lower end position 212 of the root stock equivalent region located in the ground by a distance of 0.5 × D from the ground surface portion 210, and the root stock transition region 10a-. (2) is a region extending upward by a distance D from the upper end position 211 of the root stock equivalent region.

Since the annual ring shape of the root stock-containing region 10a is irregular, it has not been effectively used as a pillar in the past, and the trunk region 10b of the planted trees has been used exclusively as a pillar.
In this regard, the inventor of the present application has obtained a new idea that the root stock-containing region 10a is stronger than the executive region 10b in view of the original ecology of the tree.

That is, the root stock-containing region 10a including the ground surface portion 210 in contact with the ground surface of the planted tree 200 has a larger lateral load than that applied to the trunk region 10b over a long period of time until it is cut down. It is stronger than the trunk area 10b, especially against lateral load (compressive load in the radial direction), and by reproducing this planting state, the installation strength of the wooden pillar can be increased. I came to know a new idea that it can be improved.

Japanese Patent No. 542030

The present invention has been made in view of such a prior art, and is an installation structure of a wooden pillar in which a wooden pillar is erected in a state along the longitudinal direction, and the installation strength of the wooden pillar can be improved. The first purpose is to provide an installation structure.
Further, the present invention achieves the first object, and further, even when the wooden pillars are installed independently or when the number of wooden pillars to be installed is low, it is placed on the installation surface of the foundation concrete or the like. The second purpose is to provide a wooden pillar installation structure that enables the installation of wooden pillars while effectively ensuring the installation strength, and also enables the replacement of the installed wooden pillars without damaging the installation surface. ..

In order to achieve the first object, the first aspect of the present invention is a structure in which a wooden pillar is erected in a support hole in a state along the longitudinal direction, and the wooden pillar is a root stock. Provided is an installation structure of a wooden pillar which has a containing region and is erected in the support hole in a state where the root stock containing region straddles the opening end of the support hole in the longitudinal direction of the wooden pillar.

Preferably, the wooden pillar is erected in the support hole with a gap between the outer peripheral surface and the inner peripheral surface of the support hole, and at least a part of the gap is filled with a fixing material. ..

In order to achieve the second object, the wooden pillar installation structure according to the present invention further includes a base plate fixed to the installation surface and a support cylinder body provided on the upper surface of the base plate and having an opening at the upper side. It is provided with a support device including a support cylinder to be provided and a convex portion facing upward provided in a central portion of a region surrounded by the support cylinder body among the upper surfaces of the base plate.

In this case, the support cylinder body and the base plate form the support hole, and the wooden pillar has a concave portion in which the convex portion is engaged in the base end surface.

Preferably, the wooden pillar installation structure according to the present invention can further include a protective cover that covers the base end portion of the wooden pillar.

The protective cover is a tubular portion that surrounds the base end portion of the wooden pillar, and is between the inner peripheral surface of the support cylinder main body in a state where the wooden pillar is erected in the support cylinder main body. It is assumed that there is a tubular portion having the gap and the upper end portion is configured to be located above the support cylinder body.

The portion of the wooden pillar surrounded by the tubular portion is provided with an engagement groove that opens outward in the radial direction, and the engagement groove is fitted with a rigid member that cannot move relative to the longitudinal direction of the wooden pillar. On the other hand, the tubular portion is provided with a mounting hole at a position facing the rigid member.
The tubular portion and the wooden pillar are connected via a fastening member that is inserted into the mounting hole and fastened to the rigid member.

Preferably, the protective cover has a wooden pillar side flange portion extending outward in the radial direction from a portion of the tubular portion located in the support cylinder main body in an upright state of the wooden pillar. The support cylinder is assumed to have a support cylinder side flange portion extending inward in the radial direction from a portion of the support cylinder body located above the wooden pillar side flange portion.

In this case, the fixing material is filled in the entire circumference of the region sandwiched by the support cylinder side flange portion (45) and the wooden pillar side flange portion in the vertical direction.

In one form, the wooden pillar side flange portion extends radially outward from the lower end portion of the tubular portion so as to be in contact with the upper surface of the base plate in a state where the wooden pillar is installed on the upper surface of the base plate. The boundary between the wooden pillar-side flange portion and the base plate is covered with an adhesive.

For example, the engagement groove is provided in a portion of the base end portion of the wooden pillar surrounded by the tubular portion, which is located in the support cylinder main body.

In another form, the wooden pillar side flange portion is provided so as to be located between the upper end portion and the lower end portion of the support cylinder main body in a state where the wooden pillar is installed on the upper surface of the base plate.

In this case, a granular filler is filled between the wooden pillar side flange portion and the base plate in the gap, and the fixing material is filled in a portion of the gap above the granular filler.

In the other form, preferably, the protective cover extends radially outward from the lower end of the tubular portion so as to be in contact with the upper surface of the base plate in a state where the wooden pillar is installed on the upper surface of the base plate. It may have a wooden pillar side flange portion.

In the other form, for example, the engagement groove is provided in a portion of the base end portion of the wooden pillar surrounded by the tubular portion, which is located at the same position as the granular filler in the vertical direction.

Further, in order to achieve the first and second objects, the second aspect of the present invention includes a metal base play fixed on the installation surface, a metal support cylinder fixed to the base plate, and the above. A wooden pillar whose base end surface is directly or indirectly placed on the base plate in the support cylinder is provided, and at least a part of the base end portion of the wooden pillar surrounded by the support cylinder is a root stock-containing region. The outer peripheral surface is configured to be in contact with the inner peripheral surface of the support cylinder, and an engagement groove that opens radially outward is provided at the base end portion of the wooden pillar, and the engagement groove is provided with an engagement groove. Is mounted with a rigid member that cannot move relative to the longitudinal direction of the wooden pillar, while the support cylinder is provided with a mounting hole at a position facing the rigid member, and the support cylinder and the wooden pillar are provided with mounting holes. Provided is an installation structure of wooden columns inserted through the mounting holes and connected via a fastening member fastened to the rigid member.

In the second aspect, preferably, the wooden pillar has an intermediate portion extending from the base end portion to the tip end side in a state of being expanded with a step portion, and the tip end portion of the support cylinder is the tree. Engages in the steps of the pillar.

According to the installation structure of the wooden pillar according to the first aspect of the present invention, the root stock-containing region having high strength against the applied load, particularly the load in the lateral direction, is supported in the vertical direction. Since the wooden pillar is erected in the support hole so as to straddle the opening end of the hole, the installation strength of the wooden pillar can be effectively improved.

Further, a base plate fixed on the installation surface, a support cylinder having a support cylinder main body provided on the upper surface of the base plate and having an opening above the base plate, and a support cylinder provided on the upper surface of the base plate at the center of the support cylinder main body. If a support device including a convex portion is provided, the support cylinder main body and the base plate form the support hole, and the base end surface of the wooden pillar is provided with a concave portion into which the convex portion is engaged. The installation surface can be replaced without destroying the installation surface by simply destroying the fixing material filled in the gap between the inner peripheral surface of the support cylinder body and the outer peripheral surface of the wooden pillar. Vertical wooden pillars can be installed on the top in a moat shape.

Further, since the wooden pillar is erected on the upper surface of the base plate in a state where the concave portion provided on the base end surface of the wooden pillar and the convex portion provided on the base plate are engaged, the standing posture of the wooden pillar is well maintained. At the same time, it is possible to effectively prevent or reduce the occurrence of local stress concentration of the wooden pillar when a lateral external force acts on the wooden pillar.

According to the installation structure of the wooden pillar according to the second aspect of the present invention, at least a part of the base end portion of the wooden pillar surrounded by the support cylinder is subjected to a load applied, particularly a load in the lateral direction. Since it is a root stock-containing region having high strength, the installation strength of wooden pillars can be effectively improved.

FIG. 1 is a partial vertical sectional view of a wooden pillar installation structure according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a schematic view of a planted tree in a state before the wooden pillar is cut down in the installation structure of the wooden pillar. FIG. 4 is a partial vertical sectional view of the first modification of the first embodiment. FIG. 5 is a partial vertical sectional view of the second modification of the first embodiment. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is an enlarged view of the VI portion in FIG. FIG. 8 is an exploded cross-sectional view of the wooden pillar and the rigid member according to the first embodiment. FIG. 9 is a partial vertical sectional view of the third modification of the first embodiment. FIG. 10 is a partial vertical sectional view of the fourth modification of the first embodiment. FIG. 11 is a partial vertical sectional view of a fifth modification of the first embodiment. FIG. 12 is a partial vertical sectional view of the sixth modification of the first embodiment. FIG. 13 is a partial vertical cross-sectional view of the seventh modification of the first embodiment. FIG. 14 is a partial vertical sectional view of the installation structure of the wooden pillar according to the second embodiment of the present invention. FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. FIG. 16 is a partial vertical sectional view of a modified example of the second embodiment.

Embodiment 1
Hereinafter, an embodiment of a wooden pillar installation structure according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a partial vertical cross-sectional view of the wooden pillar installation structure 1A according to the present embodiment.
Further, FIG. 2 shows a cross-sectional view taken along the line II-II in FIG.

The wooden pillar installation structure 1A is for installing the wooden pillar 10 in an upright state, and is used for, for example, independent pillars such as torii gates and gates, large black pillars of houses, pillars of independent structures, wooden lanterns, and the like. To.

The wooden pillar installation structure 1A according to the present embodiment is configured to vertically support the wooden pillar 10 in the support hole.
As shown in FIGS. 1 and 2, the wooden pillar installation structure 1A according to the present embodiment has a support device 20 capable of standing the wooden pillar 10 on the installation surface of the foundation concrete 100 or the like. , The support device 20 forms the support hole.

Specifically, the support device 20 includes a base plate 30 fixed on an installation surface of the foundation concrete 100 or the like, and a support cylinder 40 having a support cylinder main body 42 provided on the upper surface of the base plate 30 and having an opening at the upper side. The upper surface of the base plate 30 has a convex portion 50 facing upward provided at the center of a region surrounded by the support cylinder body 42, and the support cylinder body 42 and the base plate 30 support the base plate 30. It forms a hole.

The base plate 30 and the support cylinder 40 can be made of a metal material having excellent rust prevention properties, for example, stainless steel.
The support cylinder body 42 can be fixed to the base plate 30 by various methods such as welding and screw fastening.

As shown in FIGS. 1 and 2, the wooden pillar 10 is provided with a recess 12 in which the convex portion 50 is engaged in the base end surface.
In the present embodiment, the convex portion 50 and the concave portion 12 are hemispherical.

In the present embodiment, as shown in FIG. 1, the base end surface of the wooden pillar 10 is provided with a base end plate 15 that covers the base end surface of the wooden pillar 10 while allowing access to the recess 12. ing.
Preferably, the opening provided in the base end plate 50 to allow access to the recess 12 has a shape that matches the outer shape of the protrusion 50 and the recess 12.

The base end plate 15 can be made of a metal material having excellent rust resistance, for example, stainless steel.
By providing the base end plate 15, it is possible to effectively prevent or reduce the concave portion 12 from being damaged or deformed by the stress from the convex portion 50 when an external force in the lateral direction is applied to the wooden pillar 10. Can be done.

As shown in FIGS. 1 and 2, in the present embodiment, the support device 20 is a reinforcing rib 35 that connects the outer extending portion 32 of the base plate 30 and the outer peripheral surface of the support cylinder body 42. have.

By providing the reinforcing rib 35, the strength of the support device 20 can be effectively increased.
Preferably, a plurality of the reinforcing ribs 35 are provided at equal intervals around the center of the support cylinder main body 42.

As shown in FIG. 2, in the present embodiment, anchor bolts 110 are embedded in the installation surface of the foundation concrete 100 or the like so as to form an upward extending portion 111 having an upper end extending upward. There is.

The base plate 30 is provided with the outer extending portion 32 extending radially outward from the support cylinder main body 42, and the outer extending portion 32 is provided with an upward extending portion of the anchor bolt 110. A mounting hole 34 through which 111 is inserted is provided.

In such a configuration, in the present embodiment, the base plate 30 extends upward so that the upward extending portion 111 is located on the upper surface of the anchor bolt 110 and the base plate 30 inserted through the mounting hole 34. It is fixed to the installation surface of the foundation concrete 100 or the like via the fixing nut 115 screwed to the portion 111.

Preferably, the inner diameter of the mounting hole 34 is made larger than the outer diameter of the upward extending portion 111, and the step before fixing by the fixing nut 115 in a state where the upward extending portion 111 is inserted through the mounting hole 34. In, the base plate 30 can be adjusted in position in the plane direction.

In the present embodiment, the wooden pillar 10 erected in the support hole has a root stock-containing region 10a, and the root stock-containing region 10a opens the support hole in the longitudinal direction of the wooden pillar 10. It is erected in the support hole so as to straddle the end portion (in the present embodiment, the upper end portion of the support cylinder main body 42).
According to such a configuration, the installation strength of the wooden pillar 10 can be effectively improved.

That is, as shown in FIG. 3, the planted tree 200, which is in a state before the wooden pillar 10 is cut down, has a root stock-containing region 10a including a ground surface portion 210 located on the ground surface GL and the root stock-containing region. It has a root region 10c extending from the lower end of 10a to the ground and a trunk region 10b extending upward from the upper end of the root stock-containing region 10a.

The root stock-containing region 10a has a root stock equivalent region 10a- (1) and a root stock transition region 10a- (2).

The root stock equivalent region 10a- (1) is only a distance of 1.5 × D from the ground surface portion 210, where D is the reference diameter of the ground surface portion 210 located on the ground surface GL of the planted tree 200. It is an area sandwiched by the upper end position 211 of the root stock equivalent region located above and the lower end position 212 of the root stock equivalent region located in the ground by a distance of 0.5 × D from the ground surface portion 210.

The root stock transition region 10a- (2) is a region extending upward by a distance D from the upper end position 211 of the root stock equivalent region.

Here, the inventor of the present application has come to know the above configuration based on the following novel idea.
In the planted state, a lateral load larger than that applied to the trunk region 10b is applied to the root stock-containing region 10a including the ground surface portion 210 in contact with the ground surface GL.

That is, the root stock-containing region 10a continues to withstand a large lateral load for a long period of time until the planted tree 200 is cut down, and therefore, a lateral load (diameter compression) than the trunk region 10b. It is considered to have high strength against load).

On the other hand, when a lateral load is applied to the wooden pillar 10 in the state of being installed in the support hole (the support cylinder main body 42 in the present embodiment) in an upright posture, the wooden pillar 10 is described in the longitudinal direction. The largest load is applied to the portion that straddles the open end portion of the support hole (in the present embodiment, the upper end portion of the support cylinder body 42).

Based on this point, in the present embodiment, the wooden pillar 10 is erected in the support hole in a state where the root stock-containing region 10a straddles the opening end of the support hole in the longitudinal direction of the wooden pillar 10. As a result, the occurrence of shearing (longitudinal cracking) in the wooden pillar 10 is effectively prevented or reduced, and the installation strength of the wooden pillar 10 is effectively improved.

In the present embodiment, as shown in FIG. 1, the wooden pillar 10 is erected in the support hole with the root stock corresponding region 10a- (1) straddling the opening end of the support hole. Instead, as in the modified example 1B shown in FIG. 4, the wooden pillar 10 is erected in the support hole with the root stock transition region 10a- (2) straddling the opening end of the support hole. Is also possible.

As shown in FIGS. 1 and 2, in the present embodiment, there is a gap between the outer peripheral surface of the wooden pillar 10 and the inner peripheral surface of the support hole (in the present embodiment, the support cylinder main body 42). The wooden pillar 10 and the support hole are configured so that the 18 is present, and the gap 18 is filled with a fixing material 78 such as concrete or mortar.

According to such a configuration, the installation wooden pillar 10 can be replaced only by destroying the fixing material 78 without destroying the installation surface of the foundation concrete 100 or the like.

In the present embodiment, the fixing material 78 is filled in the entire gap 18, but it is also possible to fill only a part of the gap 18 with the fixing material 78.
For example, as in the modified example 1C shown in FIG. 5, the lower portion of the gap 18 is filled with a granular filler 80 such as sand, and only the portion of the gap 18 above the granular filler 80 is said. It is also possible to fill the fixing material 78.

FIG. 6 shows a cross-sectional view taken along the line VI-VI in FIG.
Further, FIG. 7 shows an enlarged view of part VII in FIG.

As shown in FIGS. 1, 2, 6 and 7, the wooden pillar installation structure 1A according to the present embodiment has a protective cover 60 that covers the base end portion 11a of the wooden pillar 10. ..

The protective cover 60 can be formed of various materials, but is formed of carbon-reinforced fiber plastic or a metal material having excellent rust resistance, such as stainless steel.

The protective cover 60 has a tubular portion 62 that surrounds the base end portion 11a of the wooden pillar 10.
The tubular portion 62 has the gap 18 between the wooden pillar 10 and the inner peripheral surface of the support cylinder main body 42 in a state where the wooden pillar 10 is erected in the support cylinder main body 42, and the upper end portion thereof. It is configured to be located above the support cylinder body 42.

In the present embodiment, the base end portion 11a of the wooden pillar 10 has a small diameter from the intermediate portion 11b connected to the base end portion 11a with a stepped portion, and the free end surface of the tubular portion 62. The base end portion 11a is inserted into the tubular portion 62 with the (upper end surface) in contact with the step portion.

By providing such a configuration, it is possible to effectively prevent the protective cover 60 from being displaced upward with respect to the wooden pillar 10.

Preferably, the so-called "wood killing" can be performed in which the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62 is compressed inward in the radial direction of the wooden pillar 10.
By performing such compression processing, the strength of the base end portion 11a of the wooden pillar 10 can be effectively increased.

As shown in FIGS. 1, 6 and 7, the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62 is provided with an engagement groove 305 that opens outward in the radial direction.
In the present embodiment, the engagement groove 305 is provided over the entire circumference of the wooden pillar 10, but the engagement groove 305 is provided at least a part of the outer circumference of the wooden pillar 10. You may be.

A rigid member 310 is mounted in the engagement groove 305 so as not to be relatively movable in the longitudinal direction of the wooden pillar 10, while the tubular portion 62 has a mounting hole 325 (at a position facing the rigid member 310). (See FIG. 7) is provided.

On top of that, the tubular portion 62 and the wooden pillar 10 are connected via a fastening member 320 that is inserted into the mounting hole 325 and fastened to the rigid member 310.

The rigid member 310 is connected to the protective cover 60 via the fastening member 320 in a state of being engaged in the engaging groove 305, thereby preventing the wooden pillar 10 from coming out of the protective cover 60. It can be formed of various materials such as stainless steel, iron, copper and other metals, or compressed wood as long as it has sufficient rigidity.

When the rigid member 310 is formed of compressed wood, it can be preferably arranged so that the expansion direction is along the longitudinal direction of the wooden column 10.

FIG. 8 shows an exploded cross-sectional plan view of the wooden pillar 10 and the rigid member 310.
As shown in FIGS. 7 and 8, the rigid member 310 has a rectangular plate-like body whose cross-sectional shape is defined by a pair of long sides 310a and a pair of short sides 310b, and the pair of long sides. One of the 310a is mounted on the engagement groove 305 so as to face outward in the radial direction of the vertical wooden pillar 10.

When the rigid member 310 has a rectangular cross section as in the present embodiment, as shown in FIG. 7, among the rigid members 310, the bottom surface of the engagement groove 305 and the inner surface of one of the rigid members 310. The end portion 319a corresponding to the corner portion defined by the above and the end portion 319b corresponding to the corner portion defined by the bottom surface of the engagement groove 305 and the other inner side surface are brought closer to the bottom surface of the engagement groove 305. It can be formed in a tapered tapered shape or a tapered curved surface shape so as to have a narrow width.

According to such a configuration, the rigid member 310 can be fitted into the engagement groove 305 while effectively preventing damage to the rigid member 310 and the wooden pillar 10.

As shown in FIG. 8, in the present embodiment, the rigid member 310 has four split rigid bodies 311 arranged along the circumferential direction of the wooden pillar 10, but of course, The rigid member 310 can be formed of a single member, or can be formed of two or three divided rigid bodies.

The engagement groove 305 is provided in a portion of the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62, which is located in the support cylinder main body 42 in the vertical direction.

The engagement groove 305 can be provided in a portion of the base end portion 11a of the wooden pillar 10 located above the support cylinder main body 42, but the attachment formed in the tubular portion 62. In order to effectively prevent or reduce the invasion of moisture such as rainwater from the outside into the tubular portion 62 through the hole 325, the engagement groove 305 is vertically inserted into the support cylinder body 42. It is preferable to position it.

In the present embodiment, the engagement groove 305 is provided in the root stock corresponding region 10a- (1), but instead, as in the modified example shown in FIG. 4, the engagement groove is provided. It is also possible to provide 305 in the root stock transfer region 10a- (2).

In the present embodiment, as shown in FIG. 1 and the like, the protective cover 60 includes the support cylinder in the tubular portion 62 in the upright state of the wooden pillar 10 in addition to the tubular portion 62. It has a wooden pillar side flange portion 65 extending radially outward from a portion located in the main body 42.

Further, in addition to the support cylinder main body 42, the support cylinder 40 has a support cylinder side flange portion 45 extending inward in the radial direction from a portion of the support cylinder main body 42 located above the wooden pillar side flange portion 65. have.

The fixing material 78 is filled in the entire circumference of the region sandwiched by the support cylinder side flange portion 45 and the wooden pillar side flange portion 65 in the vertical direction.

According to such a configuration, even if an external force in the direction in which the wooden pillar 10 comes out of the support hole (hereinafter, referred to as a pull-out external force) acts on the wooden pillar 10, the wooden pillar side flange portion 65 is inside the gap 18. Acts as a resistor against the fixing material 78 filled in.

Further, when the pull-out external force is applied, the fixing material 78 filled in the gap 18 is effectively prevented from coming out upward from the support cylinder main body 42 by the support cylinder side flange portion 45.

In the present embodiment, as shown in FIG. 1, the wooden pillar side flange portion 65 extends radially outward from the lower end portion of the tubular portion 62, and the protective cover 60 is attached. The wooden pillar side flange portion 65 is in contact with the upper surface of the base plate 30 in a state where the wooden pillar 10 is erected on the upper surface of the base plate 30 in the support cylinder main body 42.

In this case, preferably, the boundary between the wooden pillar side flange 65 and the base plate 30 is covered with the adhesive 79.

By providing the adhesive 79, even if the fixing material 78 is cracked by a factor such as a lateral external force after the wooden pillar 10 is installed and the wooden pillar 10 is tilted, the base end surface of the wooden pillar 10 and the base plate 30 It is possible to effectively prevent the debris of the fixing material 78 from entering between them. Even if the wooden pillar 10 is tilted for some reason, the tilt is restored to some extent by the engagement of the convex portion 50 and the concave portion 12.
As the adhesive material 79, an adhesive material having flexibility such as caulking can be preferably used.

Further, by providing the adhesive material 79, the wooden pillar 10 is temporarily fixed at a predetermined position in the support cylinder body 42 in an upright posture by the adhesive material 79, and the inner peripheral surface of the support cylinder body 42 and the said. The fixing material 78 can be filled in the gap 18 between the outer peripheral surfaces of the tubular portion 62, and the installation posture of the wooden pillar 10 can be stabilized.

As described above, in the present embodiment, the wooden pillar side flange portion 65 is provided so as to be in contact with the base plate 30, but the present invention is not limited to such a form as a matter of course.

FIG. 9 shows a partial vertical sectional view of a modified example 1D provided with the protective cover 60D instead of the protective cover 60.
In the protective cover 60D, the wooden pillar side flange portion 65 is located between the lower end portion and the upper end portion of the support cylinder main body 42 in the vertical direction.

In the modified example shown in FIG. 9, the portion of the gap 18 located between the wooden pillar side flange portion 65 and the base plate 30 is filled with the granular filler 80, and the granular filler 80 is filled. The fixing material 78 is filled in the upper portion of the filler 80.

As the granular filler 80, a substance that can be relatively easily removed by breaking the fixing material 78 disposed above the granular filler 80, for example, sand is used.

Further, as shown in FIG. 9, the protective cover 60D is provided from the lower end portion of the tubular portion 62 so as to be in contact with the upper surface of the base plate 30 in addition to the tubular portion 62 and the wooden pillar side flange portion 65. It has a second wooden pillar side flange portion 68 extending outward in the radial direction.
The boundary between the second wooden pillar side flange 68 and the base plate 30 is covered with an adhesive 79.

In the configuration in which the lower portion of the gap 18 is filled with the granular filler 80 and the fixing material 78 is filled above the granular filler 80, the engagement groove 305 is formed in the present embodiment. As shown in the above, it is also possible to provide the wooden pillar 10 at a portion of the wooden pillar 10 located at the same position as the fixing member 78 in the vertical direction, and as in the modified example shown in FIG. It is also possible to provide it in a portion located at the same position as the granular filler 80 in the vertical direction.

Further, in the wooden pillar installation structure 1A according to the present embodiment, the base end portion 11a of the wooden pillar 10 is covered with the protective cover 60, but as in the modified example 1F shown in FIG. 11, the said It is also possible to omit the protective cover 60.

Further, in the first embodiment, the support cylinder main body 42 and the base plate 30 form the support hole, but instead, the support hole is formed by a perforation 150 provided on the ground surface. Is also possible.

FIG. 12 shows a vertical cross-sectional view of a modified example 1G in which the wooden pillar 10 with the protective cover 60 is erected in the support hole formed by the perforation 150 provided on the ground surface.
Further, FIG. 13 shows a vertical cross-sectional view of the modified example 1H in which the wooden pillar 10 without the protective cover 60 is erected in the support hole formed by the perforation 150 provided on the ground surface.

The cross-sectional shape of the wooden pillar 10 can be various shapes such as a circle, an ellipse, and a polygon, and the plan view shape of the support hole is also various shapes such as a circle, an ellipse, and a polygon. Can be.

Further, the cross-sectional shape of the wooden pillar 10 and the plan-view shape of the support hole can be the same or different.
That is, when the wooden pillar 10 has a circular cross section, the support hole can be circular in plan view or polygonal in plan view.

Embodiment 2
Hereinafter, other embodiments of the wooden pillar installation structure according to the present invention will be described with reference to the accompanying drawings.

FIG. 14 shows a partial vertical cross-sectional view of the wooden pillar installation structure 2A according to the present embodiment.
Further, FIG. 15 shows a cross-sectional view taken along the line XV-XV in FIG.
In the figure, the same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

The wooden pillar installation structure 2A according to the present embodiment is configured to erect and support the wooden pillar 10 on the installation surface of the foundation concrete 100 or the like.

Specifically, as shown in FIGS. 14 and 15, the wooden pillar installation structure 2A includes a metal base plate 130 such as stainless steel fixed on the installation surface and stainless steel or the like fixed to the upper surface of the base plate 130. It includes a metal support cylinder 140 and a wooden pillar 10 whose base end surface is directly or indirectly placed on the base plate 130 in a state where the base end portion 11a is surrounded by the support cylinder 140.

The wooden pillar 10 is configured such that the outer peripheral surface of the base end portion 11a abuts on the inner peripheral surface of the support cylinder 140.
The wooden pillar 10 is placed on the base plate 130 directly or indirectly by placing the base end surface directly or indirectly on the base plate 130, and the outer surface of the base end portion 11a is brought into contact with the inner surface of the support cylinder 140. It is erected and supported in.

Similar to the first embodiment, the wooden pillar installation structure 2A has an upwardly facing convex portion 50 provided in the central portion of a region of the upper surface of the base plate 130 surrounded by the support cylinder 140. The base end surface of the wooden pillar 10 is provided with a recess 12 into which the convex portion 50 is engaged.
Also in the present embodiment, the convex portion 50 and the concave portion 12 are hemispherical.

Further, as in the first embodiment, in the present embodiment as well, the base end plate 15 is fixed to the base end surface of the wooden pillar 10.
The base end plate 15 is provided with an opening that allows engagement of the convex portion 50 and the concave portion 12.

As shown in FIGS. 14 and 15, also in the present embodiment, the anchor bolt 110 is formed on the installation surface of the foundation concrete 100 or the like with the upper extending portion 111 having the upper end extending upward. It is buried.

The base plate 130 is provided with an outer extending portion 132 extending radially outward from the support cylinder 140, and the outer extending portion 132 is provided with an upward extending portion of the anchor bolt 110. A mounting hole 134 through which the 111 is inserted is provided.

In such a configuration, in the present embodiment, the base plate 30 extends upward so that the upward extending portion 111 is located on the upper surface of the anchor bolt 110 and the base plate 30 inserted through the mounting hole 34. It is fixed to the installation surface of the foundation concrete 100 or the like via the fixing nut 115 screwed to the portion 111.

Reference numerals 135 in FIGS. 14 and 15 are reinforcing ribs that connect the upper surface of the outer extending portion 132 of the base plate 130 and the outer peripheral surface of the support cylinder.

At least a part of the base end portion 11a surrounded by the support cylinder 140 of the wooden pillar 10 is a root stock-containing region 10a.

As described above, the root stock-containing region 10a has higher strength with respect to the lateral load (compressive load along the radial direction) than the trunk region 10b.
Therefore, according to the above configuration, it is possible to effectively prevent or reduce shearing (longitudinal cracking) at the base end portion 11a due to the lateral load applied to the wooden pillar 10, and effectively improve the installation strength of the wooden pillar 10. Can be improved.

As shown in FIG. 14, in the present embodiment, one of the root stock equivalent region 10a- (1), the root stock transition transition region 10a- (2), and the trunk region 10b adjacent to the root stock transition region 10a- (2). The portion forms the base end portion 11a.

The support cylinder 140 and the base end portion 11a of the wooden pillar 10 are connected by the rigid member 310 and the fastening member 320.

That is, as shown in FIGS. 14 and 15, as in the first embodiment, the base end portion 11a of the wooden pillar is provided with an engagement groove 305 that opens outward in the radial direction. A rigid member 310 is mounted on the entrance groove 305 so as not to be relatively movable in the longitudinal direction of the wooden pillar 10.

Similar to the first embodiment, in the present embodiment, the rigid member 310 is, as a matter of course, the four divided rigid bodies 311 arranged along the circumferential direction of the wooden pillar 10. Can be formed by a single member, or can be formed by a split rigid body such as two or three.

The support cylinder 140 is provided with a mounting hole at a position facing the rigid member 310.
In such a configuration, the support cylinder 140 and the wooden pillar 10 are connected via the fastening member 320 which is inserted into the mounting hole and fastened to the rigid member 310.

In the present embodiment, as shown in FIG. 14, the engagement groove 305 is formed in the trunk region 10b forming the base end portion 11a, but of course, the present invention is limited to such an embodiment. It is not something that is done.
For example, as in the modified example 2B shown in FIG. 16, the engagement groove 305 can be formed in the root stock corresponding region 10a- (1), or the engagement groove 305 can be formed in the root stock transition region 10a. -It is also possible to form in (2).

As shown in FIG. 14, the wooden pillar 10 has an intermediate portion 11b extending from the base end portion 11a to the tip end side in a state of being expanded with a step portion, and the tip end portion of the support cylinder 140. Is engaged with the step portion of the wooden pillar 10.

In the present embodiment, as shown in FIG. 14, the intermediate portion 11b of the wooden pillar 10 and the support cylinder 140 have the same outer diameter.

1A ~ 1H, 2A ~ 2B Wooden pillar installation structure 10 Wooden pillar 10a Root stock containing area 18 Gap 20 Support device 30 Base plate 40 Support cylinder 42 Support cylinder body 45 Support cylinder side flange part 50 Convex part 60 Protective cover 62 Cylindrical part 65 Wood pillar side flange part 68 Second wood pillar side flange part 78 Fixing material 79 Adhesive material 80 Granular filler 100 Foundation concrete 130 Base plate 140 Support cylinder 305 Engagement groove 310 Rigid member 320 Fastening member 325 Mounting hole

The present invention relates to an installation structure of independent pillars such as torii gates and gates, large black pillars of houses, self-supporting pillar structures, and wooden pillars used for lanterns and the like.

The applicant of the present application has previously filed an application for an invention relating to a wooden pillar installation structure and obtained a patent (see Patent Document 1 below).

The invention described in Patent Document 1 (hereinafter referred to as patented invention) adjusts the posture of the base plate with respect to the base plate placed on the ground, the cylinder portion provided on the upper surface of the base plate, and the waste concrete. A plurality of wooden pillar support devices having an adjusting mechanism and an arm extending radially outward from the tubular portion, a base surrounding the plurality of wooden pillar support devices, and arms of the plurality of wooden pillar support devices. Corresponding to the connecting reinforcing bars, the base concrete placed in the base platform so as to cover the arms and the reinforcing bars while allowing access to the upper opening of the tubular portion, and the base end portion surrounded by the protective sheet. Among the gaps between the plurality of wooden pillars inserted into the cylinders of the wooden pillar support device, the outer peripheral surface of the protective sheet, and the inner peripheral surface of the cylinders, the upper part adjacent to the upper opening of the cylinders. It includes a granular filler filled in a region other than a portion, and a fixing material filled above the granular filler in the gap.

The patented invention is useful in that it is possible to extract the installed wooden pillars without destroying the foundation concrete, and further, it is possible to secure the supporting strength of the installed wooden pillars while reducing the thickness of the foundation concrete.

However, since the patented invention has a structure in which a plurality of wooden column support devices and reinforcing bars connecting the arms of the plurality of wooden column support devices are embedded in the foundation concrete, a single wooden column or a small number of trees It was not suitable for the installation of pillars and the installation of wooden pillars on the foundation concrete as a retrofit.

Japanese Patent No. 542030

The present invention has been made in view of such a prior art, and is an installation structure of a wooden pillar in which a wooden pillar is erected in a state along the longitudinal direction, and the installation strength of the wooden pillar can be improved. the purpose to provide the installation structure.

To achieve the pre-Symbol purpose, the onset Ming, a installation structure of a tree pillars to be erected in a state where the Kibashira a support hole formed by drilling provided in the ground surface along the longitudinal direction, The base end portion of the wooden pillar is covered with a protective cover, and the protective cover is a tubular portion surrounding the base end portion of the wooden pillar, and the wooden pillar is erected in the support hole. In this state, it has a tubular portion having a gap between it and the inner peripheral surface of the support hole and having an upper end portion located above the support hole, and the cylinder of the wooden pillars. The portion surrounded by the shape portion is provided with an engagement groove that opens outward in the radial direction, and the engagement groove is fitted with a rigid member that cannot move relative to the longitudinal direction of the wooden pillar, while the cylinder. The shape portion is provided with a mounting hole at a position facing the rigid member, and the tubular portion and the wooden pillar are connected via a fastening member that is inserted into the mounting hole and fastened to the rigid member. Provided is an installation structure of wooden pillars in which at least a part of the gap is filled with a fixing material .

Preferably, the base end portion of the wooden pillar has a small diameter from the intermediate portion connected to the base end portion with a step portion, and the upper end surface of the tubular portion is in contact with the step portion. The base end portion of the wooden pillar is inserted into the tubular portion .

Preferably, the protective cover has a wooden pillar-side flange portion that extends radially outward from a portion of the tubular portion that is located in the support hole in the upright state of the wooden pillar.

For example, the engagement groove is provided in a portion of the base end portion of the wooden pillar surrounded by the tubular portion, which is located in the support hole .

Preferably, the rigid member is formed of a compression member having a rectangular cross section, is mounted in the engagement groove so that the compression direction is along the longitudinal direction of the wooden column, and is the bottom surface of the engagement groove among the rigid members. And the end corresponding to the corner defined by one inner surface and the bottom surface of the engagement groove and the end corresponding to the corner defined by the other inner surface are tapered or tapered. Is done.

FIG. 1 is a partial vertical cross-sectional view of the installation structure of the wooden pillar according to the first reference example . FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a schematic view of a planted tree in a state before the wooden pillar is cut down in the installation structure of the wooden pillar. FIG. 4 is a partial vertical sectional view of the second reference example . FIG. 5 is a partial vertical sectional view of the third reference example . FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is an enlarged view of the VI portion in FIG. FIG. 8 is an exploded cross-sectional view of the wooden pillar and the rigid member in the first reference example . FIG. 9 is a partial vertical cross-sectional view of the fourth reference example . FIG. 10 is a partial vertical sectional view of the fifth reference example . FIG. 11 is a partial vertical sectional view of the sixth reference example . Figure 12 is a partial longitudinal sectional view of the shape states of an embodiment of the present invention. FIG. 13 is a partial vertical sectional view of a comparative example . FIG. 14 is a partial vertical cross-sectional view of the installation structure of the wooden pillar according to the seventh reference example . FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. FIG. 16 is a partial vertical sectional view of the eighth reference example .

Below, an embodiment of the installation structure of the wood pillar according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a partial vertical cross-sectional view of the wooden pillar installation structure 1A according to the first reference example .
Further, FIG. 2 shows a cross-sectional view taken along the line II-II in FIG.

The wooden pillar installation structure 1A is for installing the wooden pillar 10 in an upright state, and is used for, for example, independent pillars such as torii gates and gates, large black pillars of houses, pillars of independent structures, wooden lanterns, and the like. To.

Installation structure 1A before Kikibashira is configured to Kibashira 10 to stand supported by the support hole.
As shown in FIGS. 1 and 2, the wooden pillar installation structure 1A according to the first reference example has a support device 20 capable of standing the wooden pillar 10 on the installation surface of the foundation concrete 100 or the like. , The support device 20 forms the support hole.

Specifically, the support device 20 includes a base plate 30 fixed on an installation surface of the foundation concrete 100 or the like, and a support cylinder 40 having a support cylinder main body 42 provided on the upper surface of the base plate 30 and having an opening at the upper side. The upper surface of the base plate 30 has a convex portion 50 facing upward provided at the center of a region surrounded by the support cylinder body 42, and the support cylinder body 42 and the base plate 30 support the base plate 30. It forms a hole.

The base plate 30 and the support cylinder 40 can be made of a metal material having excellent rust prevention properties, for example, stainless steel.
The support cylinder body 42 can be fixed to the base plate 30 by various methods such as welding and screw fastening.

As shown in FIGS. 1 and 2, the wooden pillar 10 is provided with a recess 12 in which the convex portion 50 is engaged in the base end surface.
In the first reference example , the convex portion 50 and the concave portion 12 are hemispherical.

In the first reference example , as shown in FIG. 1, the base end surface of the wooden pillar 10 is provided with a base end plate 15 that covers the base end surface of the wooden pillar 10 while allowing access to the recess 12. ing.
Preferably, the opening provided in the base end plate 50 to allow access to the recess 12 has a shape that matches the outer shape of the protrusion 50 and the recess 12.

The base end plate 15 can be made of a metal material having excellent rust resistance, for example, stainless steel.
By providing the base end plate 15, it is possible to effectively prevent or reduce the concave portion 12 from being damaged or deformed by the stress from the convex portion 50 when an external force in the lateral direction is applied to the wooden pillar 10. Can be done.

As shown in FIGS. 1 and 2, in the first reference example , the support device 20 is a reinforcing rib 35 that connects the outer extending portion 32 of the base plate 30 and the outer peripheral surface of the support cylinder body 42. have.

By providing the reinforcing rib 35, the strength of the support device 20 can be effectively increased.
Preferably, a plurality of the reinforcing ribs 35 are provided at equal intervals around the center of the support cylinder main body 42.

As shown in FIG. 2, in the first reference example , the anchor bolt 110 is embedded in the installation surface of the foundation concrete 100 or the like so as to form an upward extending portion 111 whose upper end side extends upward. There is.

The base plate 30 is provided with the outer extending portion 32 extending radially outward from the support cylinder main body 42, and the outer extending portion 32 is provided with an upward extending portion of the anchor bolt 110. A mounting hole 34 through which 111 is inserted is provided.

In such a configuration, in the first reference example , the base plate 30 extends upward so that the upper extending portion 111 is located on the upper surface of the anchor bolt 110 and the base plate 30 inserted through the mounting hole 34. It is fixed to the installation surface of the foundation concrete 100 or the like via the fixing nut 115 screwed to the portion 111.

Preferably, the inner diameter of the mounting hole 34 is made larger than the outer diameter of the upward extending portion 111, and the step before fixing by the fixing nut 115 in a state where the upward extending portion 111 is inserted through the mounting hole 34. In, the base plate 30 can be adjusted in position in the plane direction.

In the first reference example , the wooden pillar 10 erected in the support hole has a root stock-containing region 10a, and the root stock-containing region 10a opens the support hole in the longitudinal direction of the wooden pillar 10. It is erected in the support hole so as to straddle the end portion (in the first reference example , the upper end portion of the support cylinder main body 42).
According to such a configuration, the installation strength of the wooden pillar 10 can be effectively improved.

That is, as shown in FIG. 3, the planted tree 200, which is in a state before the wooden pillar 10 is cut down, has a root stock-containing region 10a including a ground surface portion 210 located on the ground surface GL and the root stock-containing region. It has a root region 10c extending from the lower end of 10a to the ground and a trunk region 10b extending upward from the upper end of the root stock-containing region 10a.

The root stock-containing region 10a has a root stock equivalent region 10a- (1) and a root stock transition region 10a- (2).

The root stock equivalent region 10a- (1) is only a distance of 1.5 × D from the ground surface portion 210, where D is the reference diameter of the ground surface portion 210 located on the ground surface GL of the planted tree 200. It is an area sandwiched by the upper end position 211 of the root stock equivalent region located above and the lower end position 212 of the root stock equivalent region located in the ground by a distance of 0.5 × D from the ground surface portion 210.

The root stock transition region 10a- (2) is a region extending upward by a distance D from the upper end position 211 of the root stock equivalent region.

Here, the inventor of the present application has come to know the above configuration based on the following novel idea.
In the planted state, a lateral load larger than that applied to the trunk region 10b is applied to the root stock-containing region 10a including the ground surface portion 210 in contact with the ground surface GL.

That is, the root stock-containing region 10a continues to withstand a large lateral load for a long period of time until the planted tree 200 is cut down, and therefore, a lateral load (diameter compression) than the trunk region 10b. It is considered to have high strength against load).

On the other hand, when a lateral load is applied to the wooden pillar 10 installed in the support hole ( the support cylinder main body 42 in the first reference example ) in an upright posture, the wooden pillar 10 is described in the longitudinal direction. The largest load is applied to the portion of the support hole that straddles the open end portion ( the upper end portion of the support cylinder main body 42 in the first reference example ).

Based on this point, in the first reference example , the wooden pillar 10 is erected in the support hole in a state where the root stock-containing region 10a straddles the opening end of the support hole in the longitudinal direction of the wooden pillar 10. As a result, the occurrence of shearing (longitudinal cracking) in the wooden pillar 10 is effectively prevented or reduced, and the installation strength of the wooden pillar 10 is effectively improved.

In the first reference example , as shown in FIG. 1, the wooden pillar 10 is erected in the support hole with the root stock corresponding region 10a- (1) straddling the opening end of the support hole. Instead, as shown in the second reference 1B shown in FIG. 4, the wooden pillar 10 is erected in the support hole with the root stock transition region 10a- (2) straddling the opening end of the support hole. It is also possible.

As shown in FIGS. 1 and 2, in the first reference example , there is a gap between the outer peripheral surface of the wooden pillar 10 and the inner peripheral surface of the support hole ( the support cylinder main body 42 in the first reference example ). The wooden pillar 10 and the support hole are configured so that the 18 is present, and the gap 18 is filled with a fixing material 78 such as concrete or mortar.

According to such a configuration, the installation wooden pillar 10 can be replaced only by destroying the fixing material 78 without destroying the installation surface of the foundation concrete 100 or the like.

In the first reference example , the fixing material 78 is filled in the entire gap 18, but it is also possible to fill only a part of the gap 18 with the fixing material 78.
For example, as in the third reference example 1C shown in FIG. 5, the lower portion of the gap 18 is filled with a granular filler 80 such as sand, and the portion of the gap 18 above the granular filler 80 is filled. It is also possible to fill only the fixing material 78.

FIG. 6 shows a cross-sectional view taken along the line VI-VI in FIG.
Further, FIG. 7 shows an enlarged view of part VII in FIG.

1, 2, 6 and 7, the installation structure 1A before Kikibashira has a protective cover 60 for covering the base end portion 11a of the wooden pillar 10.

The protective cover 60 can be formed of various materials, but is formed of carbon-reinforced fiber plastic or a metal material having excellent rust resistance, such as stainless steel.

The protective cover 60 has a tubular portion 62 that surrounds the base end portion 11a of the wooden pillar 10.
The tubular portion 62 has the gap 18 between the wooden pillar 10 and the inner peripheral surface of the support cylinder main body 42 in a state where the wooden pillar 10 is erected in the support cylinder main body 42, and the upper end portion thereof. It is configured to be located above the support cylinder body 42.

In the first reference example , the base end portion 11a of the wooden pillar 10 has a small diameter from the intermediate portion 11b connected to the base end portion 11a with a stepped portion, and the free end surface of the tubular portion 62. The base end portion 11a is inserted into the tubular portion 62 with the (upper end surface) in contact with the step portion.

By providing such a configuration, it is possible to effectively prevent the protective cover 60 from being displaced upward with respect to the wooden pillar 10.

Preferably, the so-called "wood killing" can be performed in which the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62 is compressed inward in the radial direction of the wooden pillar 10.
By performing such compression processing, the strength of the base end portion 11a of the wooden pillar 10 can be effectively increased.

As shown in FIGS. 1, 6 and 7, the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62 is provided with an engagement groove 305 that opens outward in the radial direction.
In the first reference example , the engagement groove 305 is provided over the entire circumference of the wooden pillar 10, but the engagement groove 305 is provided at least a part of the outer circumference of the wooden pillar 10. You may be.

A rigid member 310 is mounted in the engagement groove 305 so as not to be relatively movable in the longitudinal direction of the wooden pillar 10, while the tubular portion 62 has a mounting hole 325 (at a position facing the rigid member 310). (See FIG. 7) is provided.

On top of that, the tubular portion 62 and the wooden pillar 10 are connected via a fastening member 320 that is inserted into the mounting hole 325 and fastened to the rigid member 310.

The rigid member 310 is connected to the protective cover 60 via the fastening member 320 in a state of being engaged in the engaging groove 305, thereby preventing the wooden pillar 10 from coming out of the protective cover 60. It can be formed of various materials such as stainless steel, iron, copper and other metals, or compressed wood as long as it has sufficient rigidity.

When the rigid member 310 is formed of compressed wood, it can be preferably arranged so that the expansion direction is along the longitudinal direction of the wooden column 10.

FIG. 8 shows an exploded cross-sectional plan view of the wooden pillar 10 and the rigid member 310.
As shown in FIGS. 7 and 8, the rigid member 310 has a rectangular plate-like body whose cross-sectional shape is defined by a pair of long sides 310a and a pair of short sides 310b, and the pair of long sides. One of the 310a is mounted on the engagement groove 305 so as to face outward in the radial direction of the vertical wooden pillar 10.

When the rigid member 310 has a rectangular cross section as in the first reference example , as shown in FIG. 7, among the rigid members 310, the bottom surface of the engagement groove 305 and the inner surface of one of the rigid members 310. The end portion 319a corresponding to the corner portion defined by the above and the end portion 319b corresponding to the corner portion defined by the bottom surface of the engagement groove 305 and the other inner side surface are brought closer to the bottom surface of the engagement groove 305. It can be formed in a tapered tapered shape or a tapered curved surface shape so as to have a narrow width.

According to such a configuration, the rigid member 310 can be fitted into the engagement groove 305 while effectively preventing damage to the rigid member 310 and the wooden pillar 10.

As shown in FIG. 8, in the first reference example , the rigid member 310 has four split rigid bodies 311 arranged along the circumferential direction of the wooden pillar 10, but of course, The rigid member 310 can be formed of a single member, or can be formed of two or three divided rigid bodies.

The engagement groove 305 is provided in a portion of the base end portion 11a of the wooden pillar 10 surrounded by the tubular portion 62, which is located in the support cylinder main body 42 in the vertical direction.

The engagement groove 305 can be provided in a portion of the base end portion 11a of the wooden pillar 10 located above the support cylinder main body 42, but the attachment formed in the tubular portion 62. In order to effectively prevent or reduce the invasion of moisture such as rainwater from the outside into the tubular portion 62 through the hole 325, the engagement groove 305 is vertically inserted into the support cylinder body 42. It is preferable to position it.

In the first reference example , the engagement groove 305 is provided in the root stock corresponding region 10a- (1), but instead, as in the modified example shown in FIG. 4, the engagement groove is provided. It is also possible to provide 305 in the root stock transfer region 10a- (2).

In the first reference example , as shown in FIG. 1 and the like, the protective cover 60 includes the support cylinder in the tubular portion 62 in the upright state of the wooden pillar 10 in addition to the tubular portion 62. It has a wooden pillar side flange portion 65 extending radially outward from a portion located in the main body 42.

Further, in addition to the support cylinder main body 42, the support cylinder 40 has a support cylinder side flange portion 45 extending inward in the radial direction from a portion of the support cylinder main body 42 located above the wooden pillar side flange portion 65. have.

The fixing material 78 is filled in the entire circumference of the region sandwiched by the support cylinder side flange portion 45 and the wooden pillar side flange portion 65 in the vertical direction.

According to such a configuration, even if an external force in the direction in which the wooden pillar 10 comes out of the support hole (hereinafter, referred to as a pull-out external force) acts on the wooden pillar 10, the wooden pillar side flange portion 65 is inside the gap 18. Acts as a resistor against the fixing material 78 filled in.

Further, when the pull-out external force is applied, the fixing material 78 filled in the gap 18 is effectively prevented from coming out upward from the support cylinder main body 42 by the support cylinder side flange portion 45.

In the first reference example , as shown in FIG. 1, the wooden pillar side flange portion 65 extends radially outward from the lower end portion of the tubular portion 62, and the protective cover 60 is attached. The wooden pillar side flange portion 65 is in contact with the upper surface of the base plate 30 in a state where the wooden pillar 10 is erected on the upper surface of the base plate 30 in the support cylinder main body 42.

In this case, preferably, the boundary between the wooden pillar side flange 65 and the base plate 30 is covered with the adhesive 79.

By providing the adhesive 79, even if the fixing material 78 is cracked by a factor such as a lateral external force after the wooden pillar 10 is installed and the wooden pillar 10 is tilted, the base end surface of the wooden pillar 10 and the base plate 30 It is possible to effectively prevent the debris of the fixing material 78 from entering between them. Even if the wooden pillar 10 is tilted for some reason, the tilt is restored to some extent by the engagement of the convex portion 50 and the concave portion 12.
As the adhesive material 79, an adhesive material having flexibility such as caulking can be preferably used.

Further, by providing the adhesive material 79, the wooden pillar 10 is temporarily fixed at a predetermined position in the support cylinder body 42 in an upright posture by the adhesive material 79, and the inner peripheral surface of the support cylinder body 42 and the said. The fixing material 78 can be filled in the gap 18 between the outer peripheral surfaces of the tubular portion 62, and the installation posture of the wooden pillar 10 can be stabilized.

As described above, in the first reference example , the wooden pillar side flange portion 65 is provided so as to be in contact with the base plate 30, but the present invention is not limited to such a form as a matter of course.

FIG. 9 shows a partial vertical cross-sectional view of the fourth reference example 1D provided with the protective cover 60D instead of the protective cover 60.
In the protective cover 60D, the wooden pillar side flange portion 65 is located between the lower end portion and the upper end portion of the support cylinder main body 42 in the vertical direction.

In the fourth reference example shown in FIG. 9, the portion of the gap 18 located between the wooden pillar side flange portion 65 and the base plate 30 is filled with the granular filler 80, and the gap 18 is filled with the granular filler 80. The fixing material 78 is filled in the upper portion of the granular filler 80.

As the granular filler 80, a substance that can be relatively easily removed by breaking the fixing material 78 disposed above the granular filler 80, for example, sand is used.

Further, as shown in FIG. 9, the protective cover 60D is provided from the lower end portion of the tubular portion 62 so as to be in contact with the upper surface of the base plate 30 in addition to the tubular portion 62 and the wooden pillar side flange portion 65. It has a second wooden pillar side flange portion 68 extending outward in the radial direction.
The boundary between the second wooden pillar side flange 68 and the base plate 30 is covered with an adhesive 79.

In a configuration in which the lower portion of the gap 18 is filled with the granular filler 80 and the fixing material 78 is filled above the granular filler 80, the engagement groove 305 is used as a fourth reference example. As shown in the above, it is also possible to provide the wooden pillar 10 at a portion of the wooden pillar 10 located at the same position as the fixing member 78 in the vertical direction, or as in the fifth reference example shown in FIG. Among them, it is also possible to provide it in a portion located at the same position as the granular filler 80 in the vertical direction.

Further, in the wooden pillar installation structure 1A according to the first reference example , the base end portion 11a of the wooden pillar 10 is covered with the protective cover 60, as in the sixth reference example 1F shown in FIG. It is also possible to omit the protective cover 60.

Further, in the first reference example 1A, the support cylinder main body 42 and the base plate 30 form the support hole, but instead of this , in the present embodiment, the perforation 150 provided on the ground surface is used. the support hole that is formed.

FIG. 12 shows a vertical cross-sectional view of the first embodiment 1G in which the wooden pillar 10 with the protective cover 60 is erected in the support hole formed by the perforation 150 provided on the ground surface.
Further, FIG. 13 shows a vertical cross-sectional view of Comparative Example 1H in which the wooden pillar 10 without the protective cover 60 is erected in the support hole formed by the perforation 150 provided on the ground surface.

The cross-sectional shape of the wooden pillar 10 can be various shapes such as a circle, an ellipse, and a polygon, and the plan view shape of the support hole is also various shapes such as a circle, an ellipse, and a polygon. Can be.

Further, the cross-sectional shape of the wooden pillar 10 and the plan-view shape of the support hole can be the same or different.
That is, when the wooden pillar 10 has a circular cross section, the support hole can be circular in plan view or polygonal in plan view.

FIG. 14 shows a partial vertical cross-sectional view of the wooden pillar installation structure 2A according to the seventh reference example .
Further, FIG. 15 shows a cross-sectional view taken along the line XV-XV in FIG.

The wooden pillar installation structure 2A according to the seventh reference example is configured to erect and support the wooden pillar 10 on the installation surface of the foundation concrete 100 or the like.

Specifically, as shown in FIGS. 14 and 15, the wooden pillar installation structure 2A includes a metal base plate 130 such as stainless steel fixed on the installation surface and stainless steel or the like fixed to the upper surface of the base plate 130. It includes a metal support cylinder 140 and a wooden pillar 10 whose base end surface is directly or indirectly placed on the base plate 130 in a state where the base end portion 11a is surrounded by the support cylinder 140.

The wooden pillar 10 is configured such that the outer peripheral surface of the base end portion 11a abuts on the inner peripheral surface of the support cylinder 140.
The wooden pillar 10 is placed on the base plate 130 directly or indirectly by placing the base end surface directly or indirectly on the base plate 130, and the outer surface of the base end portion 11a is brought into contact with the inner surface of the support cylinder 140. It is erected and supported in.

Similar to the first reference example , the wooden pillar installation structure 2A has an upwardly facing convex portion 50 provided in the central portion of a region of the upper surface of the base plate 130 surrounded by the support cylinder 140. The base end surface of the wooden pillar 10 is provided with a recess 12 into which the convex portion 50 is engaged.
Also in the seventh reference example , the convex portion 50 and the concave portion 12 are hemispherical.

Further, as in the first reference example , in the seventh reference example , the base end plate 15 is fixed to the base end surface of the wooden pillar 10.
The base end plate 15 is provided with an opening that allows engagement of the convex portion 50 and the concave portion 12.

As shown in FIGS. 14 and 15, also in the seventh reference example , the anchor bolt 110 is formed on the installation surface of the foundation concrete 100 or the like with the upper extending portion 111 having the upper end extending upward. It is buried.

The base plate 130 is provided with an outer extending portion 132 extending radially outward from the support cylinder 140, and the outer extending portion 132 is provided with an upward extending portion of the anchor bolt 110. A mounting hole 134 through which the 111 is inserted is provided.

In such a configuration, in the seventh reference example , the base plate 30 extends upward so that the upper extending portion 111 is located on the upper surface of the anchor bolt 110 and the base plate 30 inserted through the mounting hole 34. It is fixed to the installation surface of the foundation concrete 100 or the like via the fixing nut 115 screwed to the portion 111.

Reference numerals 135 in FIGS. 14 and 15 are reinforcing ribs that connect the upper surface of the outer extending portion 132 of the base plate 130 and the outer peripheral surface of the support cylinder.

At least a part of the base end portion 11a surrounded by the support cylinder 140 of the wooden pillar 10 is a root stock-containing region 10a.

As described above, the root stock-containing region 10a has higher strength with respect to the lateral load (compressive load along the radial direction) than the trunk region 10b.
Therefore, according to the above configuration, it is possible to effectively prevent or reduce shearing (longitudinal cracking) at the base end portion 11a due to the lateral load applied to the wooden pillar 10, and effectively improve the installation strength of the wooden pillar 10. Can be improved.

As shown in FIG. 14, in the seventh reference example , one of the root stock equivalent region 10a- (1), the root stock transition transition region 10a- (2), and the trunk region 10b adjacent to the root stock transition region 10a- (2). The portion forms the base end portion 11a.

The support cylinder 140 and the base end portion 11a of the wooden pillar 10 are connected by the rigid member 310 and the fastening member 320.

That is, as shown in FIGS. 14 and 15, as in the first reference example , the base end portion 11a of the wooden pillar is provided with an engagement groove 305 that opens outward in the radial direction. A rigid member 310 is mounted on the entrance groove 305 so as not to be relatively movable in the longitudinal direction of the wooden pillar 10.

Similar to the first reference example , in the seventh reference example , the rigid member 310 is a four divided rigid bodies 311 arranged along the circumferential direction of the wooden pillar 10. Naturally, the rigid member 310 Can be formed by a single member, or can be formed by a split rigid body such as two or three.

The support cylinder 140 is provided with a mounting hole at a position facing the rigid member 310.
In such a configuration, the support cylinder 140 and the wooden pillar 10 are connected via the fastening member 320 which is inserted into the mounting hole and fastened to the rigid member 310.

In the seventh reference example , as shown in FIG. 14, the engagement groove 305 is formed in the trunk region 10b forming the base end portion 11a, but of course, the present invention is limited to such a form. It is not something that is done.
For example, as in the eighth reference example shown in FIG. 16, the engagement groove 305 can be formed in the root stock corresponding region 10a- (1), or the engagement groove 305 can be formed in the root stock transition region. It is also possible to form it in 10a- (2).

As shown in FIG. 14, the wooden pillar 10 has an intermediate portion 11b extending from the base end portion 11a to the tip end side in a state of being expanded with a step portion, and the tip end portion of the support cylinder 140. Is engaged with the step portion of the wooden pillar 10.

In the seventh reference example , as shown in FIG. 14, the intermediate portion 11b of the wooden pillar 10 and the support cylinder 140 are assumed to have the same outer diameter.

1A ~ 1H, 2A ~ 2B Wooden pillar installation structure 10 Wooden pillar 10a Root stock containing area 18 Gap 20 Support device 30 Base plate 40 Support cylinder 42 Support cylinder body 45 Support cylinder side flange part 50 Convex part 60 Protective cover 62 Cylindrical part 65 Wood pillar side flange part 68 Second wood pillar side flange part 78 Fixing material 79 Adhesive material 80 Granular filler 100 Foundation concrete 130 Base plate 140 Support cylinder 305 Engagement groove 310 Rigid member 320 Fastening member 325 Mounting hole

Claims (12)

It is an installation structure of wooden pillars in which wooden pillars are erected in the support holes along the longitudinal direction.
The wooden pillar has a root stock-containing region, and the root stock-containing region is erected in the support hole in a state of straddling the opening end of the support hole in the longitudinal direction of the wooden pillar. Installation structure of wooden pillars. The wooden pillar is erected in the support hole with a gap between the outer peripheral surface and the inner peripheral surface of the support hole.
The wooden pillar installation structure according to claim 1, wherein at least a part of the gap is filled with a fixing material. A base plate fixed on the installation surface, a support cylinder having a support cylinder main body provided on the upper surface of the base plate and having an opening above the base plate, and a central portion of the upper surface of the base plate surrounded by the support cylinder main body. Equipped with a support device including an upwardly provided convex portion,
The support cylinder body and the base plate form the support hole.
The wooden pillar installation structure according to claim 2, wherein the wooden pillar has a concave portion in which the convex portion is engaged in the base end surface. A protective cover that covers the base end of the wooden pillar is provided.
The protective cover is a tubular portion that surrounds the base end portion of the wooden pillar, and is between the inner peripheral surface of the support cylinder main body in a state where the wooden pillar is erected in the support cylinder main body. Has a tubular portion having the gap and is configured such that the upper end portion is located above the support cylinder body.
The portion of the wooden pillar surrounded by the tubular portion is provided with an engagement groove that opens outward in the radial direction, and the engagement groove is fitted with a rigid member that cannot move relative to the longitudinal direction of the wooden pillar. On the other hand, the tubular portion is provided with a mounting hole at a position facing the rigid member.
The wooden pillar installation structure according to claim 3, wherein the tubular portion and the wooden pillar are connected via a fastening member that is inserted into the mounting hole and fastened to the rigid member. The protective cover has a wooden pillar-side flange portion that extends radially outward from a portion of the tubular portion that is located inside the support cylinder main body in an upright state of the wooden pillar.
The support cylinder has a support cylinder side flange portion extending inward in the radial direction from a portion of the support cylinder body located above the wooden pillar side flange portion.
The wooden pillar installation structure according to claim 4, wherein the fixing material is filled in the entire circumference of a region sandwiched by the support cylinder side flange portion and the wooden pillar side flange portion in the vertical direction. The wooden pillar side flange portion extends radially outward from the lower end portion of the tubular portion so as to be in contact with the upper surface of the base plate in a state where the wooden pillar is installed on the upper surface of the base plate.
The wooden pillar installation structure according to claim 5, wherein the boundary between the wooden pillar-side flange portion and the base plate is covered with an adhesive. Any of claims 4 to 6, wherein the engagement groove is provided in a portion of the base end portion of the wooden pillar surrounded by the tubular portion, which is located in the support cylinder main body. Installation structure of wooden pillars described in Crab. The wooden pillar side flange portion is provided so as to be located between the upper end portion and the lower end portion of the support cylinder main body in a state where the wooden pillar is installed on the upper surface of the base plate.
A claim characterized in that a granular filler is filled between the wooden pillar side flange portion and the base plate in the gap, and the fixing material is filled in a portion of the gap above the granular filler. The wooden pillar installation structure according to item 5. The protective cover has a second wooden pillar side flange portion extending radially outward from the lower end portion of the tubular portion so as to be in contact with the upper surface of the base plate in a state where the wooden pillar is installed on the upper surface of the base plate. The wooden pillar installation structure according to claim 8, wherein the wooden pillars are installed. The claim is characterized in that the engagement groove is provided in a portion of the base end portion of the wooden pillar surrounded by the tubular portion, which is located at the same position as the granular filler in the vertical direction. The wooden pillar installation structure according to item 8 or 9. It includes a metal base plate fixed on the installation surface, a metal support cylinder fixed to the base plate, and a wooden pillar whose base end surface is directly or indirectly placed on the base plate in the support cylinder. ,
The base end portion of the wooden pillar surrounded by the support cylinder is configured so that at least a part thereof is a root stock-containing region and the outer peripheral surface is in contact with the inner peripheral surface of the support cylinder.
The base end of the wooden pillar is provided with an engagement groove that opens outward in the radial direction, and the engagement groove is fitted with a rigid member that cannot move relative to the longitudinal direction of the wooden pillar, while supporting the wooden pillar. The cylinder is provided with a mounting hole at a position facing the rigid member.
The wooden pillar installation structure is characterized in that the support cylinder and the wooden pillar are inserted into the mounting hole and connected via a fastening member fastened to the rigid member. The wooden pillar has an intermediate portion extending from the base end portion to the tip end side in a state of being expanded with a step portion.
The wooden pillar installation structure according to claim 11, wherein the tip end portion of the support cylinder is engaged with a step portion of the wooden pillar.

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