JPH04112934U - Prefabricated foundations for wooden houses - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] When constructing a prefabricated foundation by laying unit blocks in rows and connecting them together,
To tightly connect the joint parts of unit blocks and to prevent the connected parts from being distorted. [Structure] A unit block A is formed by integrally connecting a unit foundation 1 whose left and right length L is a predetermined unit length and a unit base 2 which is shorter than that with reinforced concrete,
In the unit foundation 1 of the unit block A, tightening bolts 12 for fastening the connecting plates are installed at both ends of the upper end surface 1a, and bolts with a length slightly longer than the connecting bolts are installed at both left and right ends. Connecting bolt insertion holes 40 that are continuous in the left and right direction are installed so that the openings thereof are open to the left and right side end surfaces, and are provided at a portion corresponding to the longitudinal middle of the connecting bolt insertion holes 40 on the front and rear walls. Open the operation port 10, and
At the lower edges of both the left and right ends of the unit foundation 1, extending parts 11, 11 are installed, respectively, to hang down toward the space w formed on both the left and right sides of the unit base 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is for supporting the foundation of a wooden house when building a wooden house. Among the foundations to be constructed on the site, the foundations are made of reinforced concrete in advance. The unit foundation is formed into a unit foundation of the same size, and the root of the unit foundation is cut on the site and chestnut stone is laid. A wooden house constructed by laying rows of wood on top of wood and connecting them together as one. Concerning improvements to prefabricated foundations for buildings.

0002

[Conventional technology]

The prefabricated foundation for the wooden house of the type described above is based on the practical application developed by the applicant of the present invention. There is a method described in Japanese Patent No. 116550/1983.

0003 As shown in FIG. The foundation 1 and the unit base 2, which has been formed in advance so that it can be placed on it, are combined into a unit base. Set the left and right lengths of unit foundation 2 shorter than that of unit foundation 1, and install reinforced concrete in a continuous manner. A unit in which unit base 1 and unit base 2 are integrally continuous by forming by Form block A, and form this unit block A by cutting the roots on the site as shown in Figure 2. A piece of chestnut stone K is placed in the groove B, and mortar M is placed on top of it as shown in Figure 3. The rollers are laid in rows, connected by a connecting plate a, and adjacent unit blocks Concrete is placed in the space w formed between unit base 1 and unit base 2 of A. By pouring and finishing the unit base 2 in a continuous state, the prefabricated base It is a means of building a foundation.

0004 This method involves cutting the roots, laying the chestnut stones, and then laying the unit blocks in rows. Unit block The axial direction is aligned in the front and back direction on both the left and right end parts of the unit foundation 1 of the unit foundation 1 in the front and back direction. After installing the connecting bolts b and laying the unit blocks A in a row, A connecting plate a is spanned between the unit blocks A, and a bolt is opened on the connecting plate a. This can be achieved by inserting the aforementioned connection bolt b into the hole and tightening it with the tightening nut c. Adjacent unit blocks A are integrally connected by the connecting plate a.

[0005]

[Problem that the idea aims to solve]

The above method involves connecting adjacent unit blocks A laid out in a row. A force is applied to the connecting plate a that pulls the unit blocks A and A together. Since it is difficult to As a result, there is a problem in that the seams become misaligned.

[0006] In addition, the unit of unit block A that will be the foundation support surface on which the foundation of the building to be constructed is placed. The top end surface of foundation 1 is neatly aligned with the top end surface of unit foundation 1 of adjacent unit block A. They are not aligned, and there is a misalignment at the joint between unit block A and unit block A. There's a problem.

[0007] In addition, a unit block adjacent to unit base 2 of unit block A laid in a row Pour concrete into the space w formed between A and the unit base 2, and When forming the unit base 2... to be integrally connected with concrete, the unit base 2... Block A has a lower unit base than unit base 1 forming its upper half. By forming the length of the base 2 in the left and right direction to be short, the unit base 2 on the lower half side can be It may move in a pivoting manner as a fulcrum, and as a result, the concrete that has been poured and A unit foundation that creates a gap with the lower edge of the unit foundation 1 or on which the foundation of a building is placed. A problem arises in that the joint portions of the upper end surfaces of 1 are not aligned.

[0008] The present invention was made in order to solve these problems that have arisen with conventional means. The unit foundation 1 and the unit base 2, which has a shorter left and right length than the unit foundation 1, are made of iron. The unit block A is formed by forming it in a continuous manner with reinforced concrete, The unit blocks A... are arranged in a row on the site where the roots have been cut and chestnut stones have been laid. The unit blocks A... are connected by connecting members, and the adjacent units Pour concrete into the space w between unit base 2 and unit base 2 of block A. By constructing a continuous state, parallel construction is possible while constructing a prefabricated foundation. Clean the joints so that the set unit blocks A and A are attracted to each other. A joint at the upper end surface that is connected in a close contact state and serves as the support surface for the foundation. Align the minutes without any deviation, and also make sure that the unit base 2 of unit block A and the unit base The concrete poured and formed into the space w formed between the unit foundation and To provide a new means for finishing neatly without any deviation between the lower edge of 1. aimed to.

[0009]

[Means to solve the problem]

In this invention, as a means to achieve the above purpose, the building Tightening bolts to fasten the connecting plate are planted at both left and right ends of the upper end surface on which the foundation is placed. At both the left and right ends, there is a connection bolt that is slightly longer than the connection bolt and continues in the left and right direction. The connecting bolt insertion hole is installed so that its opening opens on the left and right side end surfaces, and An operation port is provided at a location corresponding to the longitudinal middle of the connecting bolt insertion hole on the front and rear walls. The unit foundation that has been opened is a flat plate with a side cross section of approximately trapezoid, and the length from the left and right of the unit foundation is Place the shortened unit base so that the lower edges of both ends of the unit base are on both the left and right sides of the unit base. A unit made of reinforced concrete and continuously formed into a shape that hangs down as an extension. Blocks are formed, and these unit blocks are placed in rows in a groove formed by root cutting on the site. The unit blocks are laid in parallel, and the adjacent unit foundations and unit foundations of the unit blocks are laid in parallel. Insert the connecting bolt into the connecting bolt insertion hole in advance and screw it into the connecting bolt through the operation port. It is tightened by a matching tightening nut, and the connecting plate spans between the ends of the upper end surface. connected between the unit bases of adjacent unit blocks. Concrete is poured into the space created by the unit block, and is formed into a shape that follows the unit base. A prefabricated foundation for a wooden house that is constructed by joining together This is something I would like to raise.

0010

【Example】

Next, embodiments will be described in detail with reference to the drawings. In addition, the drawing symbols have the same effect as those in the previous means. The same reference numerals will be used for the constituent members.

[0011] FIG. 4 is a perspective view of a unit block A in which the present invention can be implemented, and in the figure, 1 is a unit base. Foundation, 2 is the unit base, 10 is the connection bolt tightening provided on the front and rear walls of the unit foundation 1. The operation port 11 for attachment is located on the lower edge side of the unit base 1, and extends from the unit base 2 to the left and right. An extension part 12 extends downwardly toward the space w below, and 12 is the earth of the building. Fasteners for tightening connecting plates installed at both ends of the upper end surface 1a of the unit foundation 1 on which the platform 3 is mounted. The attached bolt is shown.

0012 The unit foundation 1 is a foundation that is normally constructed so that the foundation 3 of a wooden house is placed on the upper end surface 1a. It is a form in which the foundation is divided into fixed unit lengths, and reinforcing bars are arranged within the formwork. By pouring concrete, the thickness of the front and back in the height and width direction is the same as the building base. The length L in the left and right direction (longitudinal direction) is approximately 1 meter. It is formed to have the selected unit length.

[0013] The upper end surface 1a of the unit foundation 1 has at least both end portions shaped into a shallow channel shape. The ventilation grooves 13 are formed so as to be continuous in the longitudinal direction. , there is a drainer 14 that communicates the ventilation groove 13 with the outside of the unit foundation 1 in the front and back direction. has been established. Further, a connecting plate 4 (rear The tightening bolts 12, 12 for tightening (described above) protrude briefly upward from the groove bottom. It is planted to do so.

[0014] Furthermore, a foundation 3 mounted thereon is fixed to the upper end surface 1a of this unit foundation 1. Anchor bolts 15 for In addition, when a building is constructed, ventilation windows are installed to ventilate the space under the floor of the building. A cutout window 16 is formed at an appropriate position. This cutout window 16 is provided in all unit blocks A. The units of the unit block A that are selected as desired instead of being provided in the unit base 1 of Make sure to form only on foundation 1.

[0015] In addition, at both ends of the unit foundation 1 in the longitudinal direction, openings are provided on the end faces of the unit foundation 1 in the longitudinal direction. A connecting bolt insertion hole 5 is inserted into the opening 50 along the longitudinal direction toward the inside. A plurality of them are arranged in parallel vertically. This connecting bolt insertion hole 5 is shown in Fig. 7. As shown in the figure, unit block A and unit block A installed in parallel are connected to each other. This is an insertion hole for inserting the connecting bolt 5 that is tightened so as to be pulled toward the Insert it into the inside from the opening 50 so that it is in the uppermost connecting bolt insertion hole 5 in The depth of the connecting bolt 6 is formed to be somewhat longer than the length of the connecting bolt 6 used. .

[0016] The aforementioned operation port 10 for operating the connecting bolt is the connecting bolt insertion hole 5. The unit foundation 1 It is installed on the inside wall of the building among the front and rear walls, and as a result, The connecting bolt 6 is inserted into the connecting bolt insertion hole 5 in advance, and the unit bolt 6 is inserted into the connecting bolt insertion hole 5 in advance. When lock A is joined to unit block A that has already been laid as shown in Figure 7. Then, insert the connecting bolt 6 by hand or with an appropriate tool through the operation port 10. , shown inside the middle and lower connecting bolt insertion holes 5 in Figure 7. Insert the connecting bolts installed on the unit foundation 1 of the adjacent unit block A. It is placed in a state where it is suspended between it and the through hole 5. At this time, each axis of the connecting bolt 6 Screw the tightening nut 7, which is inserted through the operation port 10, into the threaded portions 6a, 6a at the ends. As shown in FIG. By tightening them so that they touch, unit block A and unit block A are joined together. are drawn together by the connecting bolt 6 so that they are continuous as shown in FIG. I'm doing it.

[0017] Therefore, the unit foundation 1 is made of concrete poured into formwork as described above. , it is molded integrally and continuously with the unit base 2, but at that time, the unit base 1 The length L is longer than the length of the unit base 2 in the left and right direction as shown in FIG. 4 above. . The unit foundation extends laterally from the left and right ends of the unit base 2. Both left and right ends of unit base 2 have spaces formed at both ends of unit base 2 on the lower edge side thereof. Extending portions 11, 11 are formed to protrude downward from the upper surface of the unit base 2 toward w. It has been done.

[0018] Unit base 2 formed with concrete and continuous with the unit foundation 1 above As shown in Figure 6, the front and rear widths are expanded to several times the front and rear widths of the unit foundation 1. When viewed from the side, it is a normal type formed into a substantially trapezoidal disk shape. Unit base 2 is formed to a length shorter than the left and right length L of the unit foundation 1 mentioned above, and A space w is formed below each of the left and right ends of the unit foundation 1 on the outside of each end. It is designed so that

[0019] On both the left and right end surfaces of the unit base 2, there are reinforcing bars installed inside. The reinforced reinforcing bars 20... are made to protrude toward this space w, forming a unit block A. When forming and laying the unit blocks A in parallel and pouring concrete into the space w. , these reinforcing bars 20... are designed to serve as internal reinforcement for the concrete to be poured.

[0020] Next, FIG. 10 shows the adjacent unit blocks of unit blocks A... laid in parallel in a row. A connecting plate 4 connecting the upper end surface 1a and the upper end surface 1a of the foundation 1 is shown. This connecting plate 4 is made in the shape of a strip with a width that fits into the ventilation groove 13 formed on the upper end surface 1a of the unit foundation 1. Each upper end surface of the unit foundation 1 and the unit foundation 1 which are metal plates joined together It is formed to a length that spans between the tightening bolts 12 installed at the end of 1a. Therefore, bolt holes 40... are opened in the parts corresponding to the tightening bolts 12, 12. Ru.

[0021] Next, FIG. 12 shows a modification of the unit block A according to the present invention. Figure 4 The unit block A shown in Figure 6 is the most commonly used intermediate part of the foundation to be constructed. It has a universal shape, and corners or branching parts have an appropriate shape. A modified form is used.

[0022] That is, the unit block A used for the corner portion is the unit block A described above. ’ unit base 1 and unit base 2 are bent into an L-shape in plan view. For the unit block A'', which is molded into a product and used for branching parts, the unit block Unit foundation 1 and unit foundation 1 of block A are T-shaped or cross-shaped in plan view. Shape it to look like this.

[0023] These are the unit block A' used for the corner part and the unit block used for the branch part. Rock A" has unit base 1 and unit base 2 that are L-shaped or is a continuous T-shape, and the rest of the configuration is different from unit block A. It is made without any hassle.

[0024]

[Effect]

The embodiment device constructed in this manner operates as follows. When constructing a prefabricated foundation, root cuts are made on the site as shown in Figures 2 and 3. Place chestnut stone K at the bottom of groove B formed by scraping, and pour mortar M on top of it to level it. Finish it up and place unit block A on top of that mortar M. is the same as the conventional means.

[0025] However, at this time, the unit foundation 1 of each unit block A is installed at both ends of the unit foundation 1 in the longitudinal direction. In the connecting bolt insertion hole 5... there is a connecting bolt at one end in the longitudinal direction. Separately formed connecting bolts 6 are inserted into each of the bolt insertion holes 5. .

[0026] Then, one unit block A is placed in a predetermined position, and then the next unit block A is placed in an adjacent position. When unit blocks A are arranged so as to be joined together, Insert your hand or an appropriate tool into the operation port 10 for tightening the connecting bolt, Grasp the longitudinal middle part of the connecting bolt 6 exposed in the operation port 10, and Insert the bolt into the connecting bolt insertion hole 5 on the side of the unit block A that has been joined together, and then With this operation, the ends of the connecting bolts 6 are connected to the two unit blocks A. The operation ports 10 and 10 of A are exposed to each other.

[0027] Next, in this state, the seat plate 70 and the tightening nut 7 are are inserted into each end of the connecting bolt 6, and the tightening nut 7 is screwed in.

[0028] As a result, the two unit blocks A and A that have been joined together are screwed into the connecting bolt 6. By tightening the tightening nut 7, they will be drawn to each other and come into close contact with each other. To go.

[0029] Next, a connecting plate 4 is attached to the joint portion of the upper end surfaces 1a, 1a of the unit blocks A, A , and tighten the bolt holes 40 and 40 on the upper end surfaces 1a and 1a. the upper end surface 1a. ・Fix the joint part 1a.

[0030] Next, the space formed between the unit bases 2 of the joined unit blocks A and A is Tighten the reinforcing bars 20 that are protruding between w and w, and pour concrete there. and mold it into a shape that follows the unit base 2. At this time, both ends of each unit foundation 1 The extending parts 11 formed on the lower edge of the mold are formed by pouring into the space w. The extension part 11.1 is buried in the concrete and solidified by the concrete. It becomes a state where 1 is embraced.

[0031] Next, connect other unit blocks A that are lined up one after the other and connect them by the same operation. do. As a result, as shown in Figure 13, it is constructed on a prefabricated foundation. .

[0032]

[Effect of the idea]

As explained above, the prefabricated foundation for a wooden house according to the present invention is the unit foundation 1. A unit block formed by integrally and continuously forming the unit base 2 with reinforced concrete. A section where the roots of A... are laid in a row in a groove B formed by cutting the roots on the site, and the parts are joined together. When constructing by integrally connecting unit block A, unit base 1 of unit block A and unit The connection of the joint parts with the unit foundation 1 of block A is shaped into those unit foundations 1... Connecting bolts 6 that have been inserted in advance into connecting bolt insertion holes 5 are inserted into the unit base. By operating from the operation port 10 formed on the wall of foundation 1, the connection between adjacent unit foundations 1 and 1 is As a state of being bridged between the connecting bolt insertion hole 5 and the connecting bolt insertion hole 5, each The walls 10a and 10a of the operation ports 10 and 10 are tied together so that they are brought close to each other, and Both ends of the upper end surfaces 1a and 1a are connected by a connecting plate 4, and The unit base 2 is poured into the space w formed between the unit bases 2 and 2. The extension parts 11 formed at the lower edges of both ends of the foundation 1 are buried in the ground. Therefore, the joint parts of unit blocks A... which are connected in parallel are The joints of the upper end surfaces 1a and 1a are clean. , and when concrete is poured into space w, unit block A is The extension parts 11 and 11 pivot around the unit base 2 whose length is shortened as a fulcrum. become more blocked.

[0033] Therefore, the unit foundation 1 and the unit base 2, which has a shorter left and right length, are connected to the reinforcing bar. The unit block A is formed by integrally continuous molding with concrete, and the Unit blocks A... are laid out in rows on the site where the roots have been cut and chestnut stones have been laid. The unit blocks A... are connected by a connecting member, and the adjacent unit blocks Concrete is poured into the space between the unit bases of the blocks to create a continuous shape. By constructing a prefabricated foundation, unit blocks laid in parallel can be constructed. The joints should be in a state in which the locks are attracted to each other, and the joints should be in close contact with each other. and connect the joints at the upper end surface 1a, which will be the supporting surface of the foundation, without any deviation. In addition, there is a shape between unit base 2 and unit base 2 of unit block A. The concrete to be poured and formed into the created space w is between the lower edge of the unit foundation 1. You will be able to finish it neatly so that there are no irregularities.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a unit block of a conventional means.

FIG. 2 is a cross-sectional view of a cut groove in which the unit blocks are laid.

FIG. 3 is a cross-sectional view of the groove finished with mortar.

FIG. 4 is a perspective view of a unit block that embodies the present invention.

FIG. 5 is a rear view of the unit block.

FIG. 6 is a side view of the unit block same as above.

FIG. 7 is a partially cutaway rear view of the unit blocks in a joined state;

FIG. 8 is an explanatory diagram of the operation process for connecting the unit blocks with the connecting bolts.

FIG. 9 is an explanatory view of the unit block in a state in which the unit blocks have been connected using connection bolts.

FIG. 10 is a perspective view of an upper end surface of the unit block and a connecting plate connecting the upper end surfaces.

FIG. 11 is a perspective view of the unit blocks connected by a connecting plate on the upper end surface thereof.

FIG. 12 is an explanatory diagram of a modified example of the unit block same as above.

FIG. 13 is a perspective view of a prefabricated foundation constructed by laying unit blocks same as above.

[Explanation of symbols]

A...Unit block, a...Connection plate, b...Connection bolt, c...
Tightening nut, B...Groove, K...Chestnut stone, M...Mortar, L...Length, w...Space, 1...Unit foundation, 1a...Top end surface, 10...Operation port, 10a...Wall surface, 11...Extension part, 12... Tightening bolt, 13... Ventilation groove, 14... Drainer, 15... Anchor bolt, 16... Notch window, 2... Unit base, 20... Rebar, 3...
Base, 4... Connecting plate, 40... Bolt hole, 41... Tightening nut, 5... Connecting bolt insertion hole, 50... Opening, 6... Connecting bolt, 6a... Threaded portion, 7... Tightening nut, 70... Floor plate.

Claims (1)

[Scope of utility model registration request] [Claim 1] Upper end surface 1a on which the foundation 3 of the building is placed.
Tightening bolts 12 that fasten the connecting plate 4 at both left and right end portions of the
・A connection bolt insertion hole 5 is provided at both left and right ends of the connection bolt 6 with a length that is somewhat longer than that of the connection bolt 6 and continues in the left and right direction.
... is installed so that its opening 50 opens on the left and right side end surfaces, and an operating port 10 is provided at a location corresponding to the longitudinal middle of the connecting bolt insertion hole 5 on the front and rear walls. , a unit base 2 having a flat plate shape with a substantially trapezoidal side cross section and having a shorter left and right length than the unit foundation 1; 11.11, unit blocks A are integrally and continuously molded from reinforced concrete in a hanging shape, and these unit blocks A are laid in parallel in rows in grooves B formed by root cutting on the site. Adjacent unit foundations 1 and unit foundations 1 of unit blocks A are connected by a connecting bolt 6 inserted in advance into the connecting bolt insertion hole 5 and a tightening nut 7 screwed into the connecting bolt 6 through the operating port 10. A connecting plate 4 that is tied together and spanned between the ends of the upper end surfaces 1a and 1a.
Unit base 2 of adjacent unit block A is connected by
A prefabricated wooden house characterized in that it is constructed by pouring concrete into the space w formed between the unit base 2 and the unit base 2, forming it into a shape that follows the unit base 2, and joining the unit blocks A... Basics.