JP3242301B2 - Pads for foundations of wooden buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation pad interposed between a cloth foundation and a lower end surface of a foundation or a pillar of a wooden building.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a pad 21 made of a rubber plate or a piece of wood is interposed between a base 23 of a wooden building and a cloth base 22, so that the base A gap 24 is formed between the base material 23 and the underfloor ventilation holes to be formed in the cloth foundation 22 are omitted. It is known that the base 23 is quickly dried by preventing the absorption of water and moisture, thereby preventing the base 23 from being corroded.

[0003]

However, the conventional pad 21 does not consider the cushioning effect of the wooden building base 23 upon an earthquake or the like. Although it can be considered that the buffer effect can be obtained, there is a problem that the base 23 cannot be stably supported when the buffer effect is considered in practice. That is, in the case of the pad 21 made of a rubber plate, if a rubber plate having a low hardness is used, a cushioning effect can be exhibited during an earthquake, but the base 23 cannot be stably supported, and conversely, a rubber having a high hardness can be used. When a plate is used, there is a problem that the buffering effect cannot be obtained while the plate can be stably supported.

Further, since the gap 24 is blocked at the pad 21 and ventilation is not performed, it is necessary to increase the height of the gap 24 in order to secure an opening area for underfloor ventilation. There is also a problem that the base structure becomes complicated due to the necessity of measures for preventing the intrusion of the ground.

The present invention has been made in view of the above-mentioned conventional problems, and proposes a foundation pad for a wooden building that can stably support a wooden base or a wooden column of the wooden building at the time of an earthquake or the like and at the same time stably support the wooden base. The purpose is to:

[0006]

In order to achieve the above-mentioned object, the present invention relates to a cloth foundation (2) and a base material (2) provided that reference numerals in the following embodiments are shown in parentheses for reference. A pad interposed between a wooden base (3) or a wooden pillar (13) to be fixed and fixed, and a plate-shaped main body (4) made of a metal plate, a buffer projection (8) and Equipped with a buffer projection (8)
The two rows of cuts (11, 11) formed in the flat body (4) are formed so as to form a gap (9) between the cloth foundation (2) and the wooden base (3) or wooden pillar (13). 11) The belt-shaped part (12) between them is protruded and formed, and is configured to be compressively elastically deformable between the cloth foundation (2) and the wooden base (3) or the wooden pillar (13). To adopt.

[0007] In carrying out the present invention having the above structure, in order to form a substantially constant gap between the cloth foundation (2) and the wooden base (3) or the wooden pillar (13), the flat main body (4) is formed. Fixed protrusions (5) that do not elastically deform can be protruded from multiple locations,
The fixing projection (5) can be constituted by an annular wall formed by projecting integrally from the plate-shaped main body (4) and having a central part penetrating therethrough, and small-diameter fixing members provided at a plurality of locations around the plate-shaped main body (4). Protrusion
(6) and a large-diameter fixing projection (7) provided in the center of the flat main body (4) and through which an anchor bolt (10) can be inserted.

The flat body (4) has a small-diameter fixed projection.
A large number of cuts (11) parallel to one side of the plate-shaped main body (4) are formed in substantially the entire area between the peripheral portion having the (6) and the central portion having the large-diameter fixed protrusion (7). Of the buffer protrusions (8) protruded by the strips (12) between the cuts (11, 11), at least the strips (12) between the long cuts (11, 11) are formed. The buffering projections (8) are formed by projecting the band-shaped portion (12) into a waveform in the longitudinal direction and are arranged in series, and the buffering projections (8) in the rows adjacent to each other are 12) It is possible to adopt a configuration in which the position in the length direction is shifted by a half pitch.

The projecting amount of the fixed projection (5) from the flat body (4) can be configured to be slightly larger than that of the buffering projection (8) from the flat body (4).

In the pad interposed between the cloth foundation (2) and the wooden pillar (13), a plate-shaped root winding member (1) made of a metal plate is used.
5) and a wooden plug (16), and as fixed projections (5) of the pad, small-diameter fixed projections (6) provided at a plurality of locations around the flat body (4); And a large-diameter fixed projection (7) provided at the center of
(7) is composed of an annular wall having a central portion penetrated, and a plate-shaped root-winding member (15) made of a metal plate is fitted around the lower end of the wooden pillar (13) to form a flat body (4) of the pad. It is placed on the top and has a through hole (17) in the center that matches the large-diameter fixed projection (7).
(16) is screwed and fixed to an anchor bolt (18) protruding from the cloth foundation (2), and has a large-diameter fixing projection (7) of the pad and a through-hole ( 17) and through the wooden pillar (13)
Can be press-fitted into a hole (19) formed at the center of the lower end of the.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a pad for foundation of a wooden building of the present invention will be described below with reference to FIGS.

FIG. 1 shows a foundation pad 1. As shown in FIG. 2, the base pad 1 is interposed between a cloth base 2 and a wooden base 3 mounted and fixed thereon, and is a flat main body made of a metal plate. 4 and fixed projection 5
And a buffering projection 8. The fixed protrusions 5 are small-diameter fixed protrusions 6 provided at a plurality of locations around the flat body 4.
And a large-diameter fixing projection 7 through which an anchor bolt 10 provided at the center of the flat main body 4 can be inserted. These support projections 6 and 7 project from a plurality of positions of the flat plate-shaped main body 4 toward the cloth base 2 to form a substantially constant gap between the cloth base 2 and the wooden base 3. It is composed of an annular wall that is integrally formed and protruded from the main body 4 and has a central portion penetrating therethrough.

The buffer projection 8 is moved from the flat main body 4 to the cloth base 2 side so as to be located in a gap 9 formed between the cloth foundation 2 and the wooden base 3 by the fixed protrusion 5. The protruding portion is formed by projecting a band-shaped portion 12 between two cuts 11 formed in the plate-shaped main body 4. In the illustrated example, the plate-shaped main body 4 has a cut parallel to one side of the plate-shaped main body 4 in substantially the entire region between the peripheral portion having the small-diameter fixed protrusion 6 and the central portion having the large-diameter fixed protrusion 7. A large number of rows 11 are formed, and the projections 8 for buffering are formed by the strip-shaped portions 12 between the cuts 11. Also, of these buffering projections 8, at least the buffering projections 8 formed by the band-shaped portions 12 between the long cuts 11 are formed by projecting the band-shaped portions 12 in a waveform in the length direction. A plurality of buffering protrusions 8 arranged in series and adjacent to each other are formed such that the positions in the length direction of the strip-shaped portion 12 are shifted by a half pitch. In addition, the amount of protrusion of the buffer protrusion 8 from the flat body 4 is set to be slightly smaller than the amount of protrusion of the fixed protrusion 5 from the flat body 4.

When the foundation pad 1 having the above-described structure is used, as shown in FIG. 2, the position of the anchor bolts 10 on the cloth foundation 2 and the position immediately below the wooden pillars 13 and the appropriate distance L besides that shown in FIG. The foundation pads 1 are arranged at intervals, and the wooden base 3 is arranged thereon. It is appropriate that the appropriate distance L is about 1 m at the maximum. When arranging the foundation pad 1, if necessary, the small-diameter fixing projection 6 of the foundation pad 1 is used.
The foundation pad 1 can be temporarily fixed to the upper surface of the cloth foundation 2 with concrete nails by using concrete nails, or it can be nailed to the bottom surface of the wooden base 3 by using the small-diameter fixing protrusion 6. At the position where the anchor bolts 10 are arranged, as shown in detail in FIG. 3, the anchor bolts 10 are fixed to the large-diameter fixing projection 7 and the anchor bolt holes 3a of the wooden base 3.
And the wooden base 3 is fixed to the cloth foundation 2 by fastening with a nut 14.

Further, at the time of the above-mentioned construction, charcoal powder is previously applied to the upper surface of the flat body 4 of the foundation pad 1 and then the wooden base 3 is placed thereon, so that the wooden base 3 and the flat body 4 made of a metal plate are connected. It is possible to prevent dew condensation from occurring on the upper surface of the plate-shaped main body 4 due to the specific heat difference, and to prevent corrosion on the contact surface between the wooden base 3 and the foundation pad 1. Instead of applying charcoal powder at the time of construction, a lining layer having a specific heat close to that of wood may be formed in advance on the upper surface of the plate-shaped main body 4 by thick film coating or the like.

In this manner, in a state where the wooden base 3 is mounted on the cloth base 2 via the base pad 1 and supported, the load acting on the wooden base 3 is normally subjected to the flat body 4 of the base pad 1 and the fixing protrusion. Since it is supported by the cloth base 2 via the portions 5 (6, 7), a stable supporting state is obtained. Also,
Since the fixed projection 5 is composed of a plurality of small-diameter fixed projections 6 around the plate-shaped main body 4 and a large-diameter fixed projection 7 at the center, the load is distributed over the entire plate-shaped main body 4. While being supported, the central large-diameter fixing projection 7 can be used as an insertion hole for the anchor bolt 10.

Further, since the fixed projections 5 (6, 7) are formed by annular walls and penetrate the central portion, there is a possibility that dew condensation or the like may accumulate in the fixed projections 5 (6, 7). In addition, it is possible to solve the problem that the wooden base 3 is easily corroded by moisture from the accumulated dew water. In the case where there is no risk of dew condensation or the anchor bolt 10 is not inserted, the small-diameter fixed projection 6 and the large-diameter fixed projection 7 may be formed in a bottomed cup shape.

Further, when an impact load is applied at the time of an earthquake or the like, the fixed projection 5 at a portion where an excessive load is applied.
The (6, 7) bites into the fabric base 2 to protrude and form the band-shaped portion 12 so as to have an elastic support function. The excessive load is dispersed and absorbed by the buffer support. In the present embodiment, the amount of protrusion of the buffer protrusion 8 is smaller than the amount of protrusion of the fixed protrusion 5 (6, 7).
Even if there is some unevenness on the upper surface of the cloth base 5, the load can be stably supported only by the fixing projections 5 (6, 7) reliably in normal times. In this case, the upper surface of the cloth base 2 and the buffer protrusion 8
It is preferable that a thin lead plate (not shown) or the like is interposed therebetween so as to ensure a uniform contact state between the buffer projection 8 and the upper surface of the cloth base 2.

In this embodiment, a large number of belt-like portions 12 parallel to one side of the plate-like main body 4 are formed in the entire area between the peripheral portion and the central portion of the plate-like main body 4, and the belt-like portions 12 are corrugated. To form the buffering projections 8, and the adjacent belt-shaped portions 12 are formed so that the buffering projections 8 are shifted by a half pitch, so that the base pad 1 can be formed in any direction. Also, air permeability is secured, and the thickness of the foundation pad 1 is not unnecessarily thickened, and the opening area necessary for underfloor ventilation is secured while the gap 9 between the cloth foundation 2 and the wooden base 3 is relatively small. In addition, since the contact area between the wooden base 3 and the plate-shaped main body 4 at the portion where the buffer protrusion 8 is formed is small and the air permeability is good, it is particularly effective for preventing the wooden base 3 from being corroded.

Next, another embodiment of the present invention will be described with reference to FIG. In the above embodiment, the wooden base 3
Although the example in which the foundation pad 1 is interposed between the wooden pillar 13 and the cloth foundation 2 has been described, in this embodiment, the wooden pillar 13 and the cloth foundation 2
And a base pad 1 is interposed therebetween.

In the foundation pad 1 of this embodiment, small-diameter fixed projections 6 are provided at a plurality of locations around the flat body 4 as the fixed projections 5 in the same manner as in the above embodiment.
Are provided with large-diameter fixed projections 7 at the center thereof, and a plate-shaped root-winding member 15 made of a metal plate and a wooden plug 16 are provided. The dish-shaped root-winding member 15 made of a metal plate is fitted on the lower end of the wooden pillar 13 and placed on the flat-plate-shaped main body 4 of the foundation pad 1. 7 and a wooden plug 16 is screwed and fixed to an anchor bolt 18 protruding from the cloth foundation 2. The large-diameter fixing projection 7 of the foundation pad 1 and the dish-shaped root winding are provided. It penetrates through the through hole 17 of the member 15 and is press-fitted into a hole 19 formed at the center of the lower end of the wooden pillar 13.

According to this embodiment, the wooden pillar 13 is mounted and supported on the cloth foundation 2 via only the foundation pad 1 without passing through the wooden base 3, and the wooden pillar 13 is screwed and fixed to the anchor bolt 18. Since the stopper 16 is pressed into the hole 19 to completely prevent the horizontal movement, the connection with the cloth foundation 2 can be strengthened while simplifying the structure of the wooden building, and the foundation pad 1 is provided. , The load acting on the wooden pillar 13 can be transmitted to the cloth foundation 2 approximately evenly and smoothly over the entire lower end surface thereof. Further, since the dish-shaped root winding member 15 is fitted to the lower end of the wooden column 13, there is no possibility that the wooden column 13 will be cracked at the lower end even if the wooden plug 16 is pressed into the hole 19.

In the present embodiment, at least the large-diameter fixed projection 7 must be formed of an annular wall having a central portion penetrated to allow the anchor bolt 18 to pass therethrough. It may be formed in the shape of a protrusion.

[0024]

The pad member for foundation of the present invention can be embodied as described above, and a gap is formed between a cloth foundation and a wooden base or a wooden pillar from a flat plate-shaped main body made of a metal plate. The shock-absorbing protrusion that can be compressed and elastically deformed is formed so that it can be buffered and supported by the elastic deformation of the shock-absorbing protrusion when an impact load is applied, such as during an earthquake, and the excessive load is dispersed and absorbed. can do.

Further, by providing the fixed protrusion, a stable support of the wooden base and the wooden pillar can be obtained. However, if the fixed protrusion is formed by an annular wall penetrating the center, a cup with a bottom is provided. Condensation water does not accumulate as in the case of a protruding shape, preventing corrosion, and using this foundation pad as a nail hole for temporarily fixing it to a cloth foundation or wooden base. , Can be used as through holes for anchor bolts.

Further, when the fixed projection is constituted by a plurality of small-diameter fixed projections around the flat plate-shaped main body and a large-diameter fixed projection capable of inserting an anchor bolt in the center, the fixed projection also serves as an anchor bolt insertion part. However, the load can also be supported at the center of the flat main body, and the load can be dispersed and supported by the entire flat main body.

Further, when a large number of corrugated buffering projections are formed in parallel in the entire area between the peripheral portion and the central portion of the flat main body by being shifted by a half pitch, the basic pad portion can be formed in any direction. Also, the ventilation area can be secured, and the thickness of the foundation pad is not made unnecessarily thick, and the opening area required for underfloor ventilation while keeping the gap between the cloth foundation and the wooden base relatively small It can be secured, and the contact area between the flat body and the wooden base at the buffer protrusion forming portion can be reduced,
Because of this, air permeability is improved, which is particularly effective in preventing corrosion of wooden foundations and wooden pillars.

When the amount of protrusion of the fixed protrusion is slightly larger than the amount of protrusion of the buffering protrusion, even if there are some irregularities on the upper surface of the cloth foundation, it is ensured that the fixed protrusion alone stably loads in normal times. Can be supported.

Further, a dish-shaped root-winding member is externally fitted to the lower end of the wooden pillar, placed on the pad for foundation, and a wooden plug screwed and fixed to an anchor bolt projecting from the cloth foundation is attached to the center of the lower end of the wooden pillar. When press-fitted into the hole formed in the wooden foundation, the wooden pillar can be placed and supported on the cloth foundation only via the foundation pad without going through the wooden base, so that the wooden foundation can be simplified while simplifying the structure of the wooden building. And the load acting on the wooden pillar can be transmitted to the cloth foundation substantially uniformly and smoothly over the entire lower end surface thereof via the foundation pad.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a foundation pad of the present invention,
(A) is a plan view, (b) is a sectional view taken along the line BB of (a),
(C) is a sectional view taken along the line CC of (a), and (d) is a sectional view taken along the line DD of (a).

FIG. 2 is a front view showing an arrangement state of the foundation pads of the embodiment.

FIG. 3 is a longitudinal sectional view showing a use state of the foundation pad of the embodiment.

FIG. 4 is a longitudinal sectional view showing a use state of another embodiment of the foundation pad of the present invention.

FIG. 5 is a perspective view showing a usage state of a conventional base pad.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation pad 2 Cloth foundation 3 Wooden base 4 Flat main body 5 Fixed protrusion 6 Small diameter fixed protrusion 7 Large diameter fixed protrusion 8 Buffering protrusion 9 Gap 10 Anchor bolt 11 Cut 12 Band-shaped part 13 Wooden pillar 15 Dish-shaped Root-wrapping member 16 Wood plug 17 Through hole 18 Anchor bolt 19 Hole

Claims (7)

(57) [Claims] A pad interposed between a cloth base (2) and a wooden base (3) or a wooden pillar (13) mounted and fixed thereon, wherein the pad is a flat plate made of a metal plate. The main body (4) and the buffering protrusion (8) are provided, and the buffering protrusion (8) is provided between the cloth foundation (2) and the wooden base (3) or the wooden pillar (13). 9) To form a flat book
The strip between the two rows of cuts (11,11) formed in the body (4)
A pad for wooden building foundation , which is formed by projecting (12) and is configured to be compressively elastically deformable between a cloth foundation (2) and a wooden base (3) or a wooden pillar (13). 2. A cloth foundation (2) and a wooden base (3) or a wooden pillar (1).
3) To form a substantially constant gap between
Fixed projections (5) that do not elastically deform from multiple locations in (4)
The pad for foundation of a wooden building according to claim 1, which is formed. 3. The fixed projection (5) is integrally formed with the flat body (4).
It is composed of an annular wall protruding from
The pad for foundation of a wooden building according to claim 2, which is provided. 4. A fixed projection (5) is provided on the periphery of the flat body (4).
Small-diameter fixed projections (6) provided at several places, and flat body
The anchor bolt (10) provided at the center of (4) can be inserted.
The pad for foundation of a wooden building according to claim 2 or 3 , comprising a functional large-diameter fixing projection (7) . 5. A small-diameter fixed projection (6) is provided on the flat body (4).
Between the peripheral part and the central part with the large-diameter fixed projection (7).
A cut (11) parallel to one side of the flat body (4)
There is a multi-sequence formed, each score (11, 11) swath between (12)
At least one of the buffer projections (8)
Also formed with a strip (12) between the long cuts (11, 11).
The shock-absorbing projection (8) fits the band (12)
Are formed in series in the shape of a corrugation in the
The buffering projections (8) in the contacting row are
The pad for a wooden building foundation according to claim 4 , wherein the position is shifted by a half pitch . 6. The projection of the fixed projection (5) with respect to the flat body (4).
The amount of protrusion depends on the projection of the buffer projection (8) against the flat body (4).
The pad for foundation of a wooden building according to any one of claims 2 to 5 , which is slightly larger than the amount . 7. Interposed between a cloth foundation (2) and a wooden pillar (13).
The pad is made of a metal plate dish-shaped wrapping member (15) and a wooden plug (16).
And the periphery of the plate-shaped main body (4) is used as the fixing projection (5) of the pad.
Small-diameter fixed projections (6) provided at multiple locations on the side
Large diameter fixed projection (7) provided at the center of the body (4)
At least the large diameter fixing projection (7) has a central part penetrated
A dish-shaped root-winding member (15) composed of an annular wall and made of metal plate is attached to the lower end of the wooden pillar (13).
Fitted and placed on the flat body (4) of the pad
At the center, a through hole (17) that matches the large diameter
The wooden plug (16) is provided with anchor bolts (1) protruding from the cloth foundation (2).
It is screwed and fixed to 8), and the large diameter fixing projection of the pad (7)
Through the through hole (17) of the dish-shaped root-wrap member (15)
Claim to be press-fitted to the lower end center hole formed in (13) (19)
The pad for foundation of a wooden building according to any one of 2 to 6 .