JP6940845B2 - Log house and log house assembly kit - Google Patents

Description

The present invention relates to a log house and its construction method, in which a large indoor space and structural strength coexist.

In a building based on the log construction method, a so-called log house, a wall surface (log wall) is constructed by horizontally stacking logs, lumber and other similar log materials such as timber with notches and crossing them.
In this log wall, notches cut out in a predetermined shape are formed in the log material, and the log materials are crossed while fitting the notches to each other to ensure structural strength. Therefore, the maximum length of one side of the log wall surrounded by the notch is stipulated in the specified length (10 m: according to the Ministry of Land, Infrastructure, Transport and Tourism Notification No. 411, May 15, 2002), and the floor plan of the log house is stipulated by this. The shape or area will be subject to certain restrictions.

Japanese Unexamined Patent Publication No. 2008-291518 Japanese Unexamined Patent Publication No. 2009-30419

That is, as shown in FIG. 7, when trying to realize a floor area of a certain level or more, a notch is formed in the middle of the outer log wall 10a and a notch is formed at the end of the inner log wall 10b (inner wall). ) Is provided, and the notch of the outer log wall 10a and the notch of the inner log wall 10b are crossed and fitted to ensure the structural strength. However, the fact that the inner wall must be provided means that the floor plan is restricted, and it is not possible to realize an indoor space having a certain size without the inner wall.
In addition, providing such an inner wall also leads to an increase in material cost.

Therefore, an object of the present invention is to provide a log house capable of ensuring structural strength while increasing the degree of freedom in layout.

In order to achieve the above object, the log house according to one aspect of the present invention is a log house provided with a log wall formed by stacking a plurality of sideways log materials in the height direction, and is long in the vertical direction. A rod-shaped outer strut that holds the log wall between the outside and the inner strut, and a rod-shaped outer strut that has a length in the vertical direction and sandwiches the log wall between the inside and the outer strut. It is characterized by having the above-mentioned inner support column.

Further, the end of the beam may be inserted into the log wall, and the upper end of the inner support column may be connected to the beam.

Further, an elongated hole into which a support pin connected to the beam is fitted is formed at the upper end of the inner column, and the elongated hole is provided with a settling space for absorbing displacement of the log wall due to settling. It may be the one that has been replaced.

Here, the support pin is a substantially rod-shaped member for connecting and fixing the inner support column to a beam, a foundation, or the like, and is configured as a round bar, a bolt, a screw bar, or the like.
In addition, settling is a phenomenon in which a log house stacks log materials on their side to form a log wall, and the log walls sink due to drying shrinkage. Generally, the height of the log materials is stacked. It sinks about 2% of the log house and settles down in about two years after the completion of the log house. In order to deal with this settling, the log house is provided with loose holes at the bolt tightening points so that the bolts can be re-tightened.

Further, the inner support column may be erected on the foundation.

Further, each of the outer support column and the inner support column may be screwed to the log wall through a screw.

Further, in the log house assembly kit according to another aspect of the present invention, a log wall formed by stacking a plurality of sideways log materials in the height direction and the log wall having a length in the vertical direction are inside. Having a rod-shaped inner strut sandwiched between the outer strut and the rod-shaped outer strut having a length in the vertical direction and sandwiching the log wall between the outer side and the inner strut. It is a feature.

According to the present invention, it is possible to secure the structural strength while increasing the degree of freedom of the floor plan.

It is a perspective view which showed the log house which concerns on embodiment of this invention. It is sectional drawing which showed the structure of the log house which concerns on this embodiment. It is a side view which showed the structure of the log house which concerns on this embodiment. It is a perspective view which showed the structure of the log house which concerns on this embodiment. It is a schematic diagram which showed the structure of the log house which concerns on this embodiment. It is sectional drawing which showed the structure of the log house which concerns on another embodiment of this invention. It is a schematic diagram which showed the structure of the log house constructed by the conventional construction method.

Hereinafter, the log house according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the log house 1 according to the present embodiment is constructed on a foundation 11 cast on the ground, a prismatic base 12 fixed on the foundation 11, and a base 12. In addition to the log wall 10, it is composed of beams 13 and a roof (not shown).

The log wall 10 is formed by stacking a plurality of log materials 101 that have been laid down sideways in the height direction. A notch cut out in a predetermined shape is formed in the vicinity of the end portion of the log material 101, and the notches of the log material 101 constituting the two intersecting log walls 10 are fitted to each other.
Further, the base 12 is provided with a curtain plate 15 and a drainer 16 for preventing rainwater from entering at the boundary between the foundation 11 and the base 12.

The log wall 10 of the log house 1 according to the present embodiment is sandwiched by a pair of columns including an outer column 2 and an inner column 3 at a predetermined position. Both the outer support column 2 and the inner support column 3 are rod-shaped columns, and are arranged so that the length direction is aligned with the vertical direction.

The outer support column 2 is arranged so that the side surface is in contact with the outside of the log wall 10.
As shown in FIGS. 2 and 3, screws 21b and 22b penetrate the outer support column 2 from the side surface, and the screws 21b and 22b are screwed into the log wall 10. As a result, the outer support column 2 is fixed in contact with the log wall 10.

Here, the lower screw hole 22a through which the screw 22b penetrates is a through hole having a wide opening width in the vertical direction or the length direction of the outer support 2, so-called loose hole, and the opening width in the vertical direction is It is provided to correspond to the settling of the log wall 10. That is, even when the log wall 10 is sunk by settling, the screw 22b can be displaced by the opening width of the screw hole 22a in the vertical direction, and moves downward following the log wall 10.

On the other hand, the upper screw hole 21a through which the screw 21b penetrates does not have an opening width corresponding to the settling of the log wall 10, but is a through hole corresponding to the diameter of the screw 21b. , The outer support 2 and the log wall 10 are fixed without being relatively displaced.
Since the screws 21b and 22b are screwed into the log wall 10 through such screw holes 21a and 22a, the movement of the outer support column 2 accompanying the settling of the log wall 10 is restricted only in the downward direction.

Further, a settling space 23a is provided at the lower end of the outer support column 2 to avoid the curtain plate 15 attached to the base 12 at the time of settling. The settling space 23a is formed by cutting out a part of the inside of the outer strut 2 that abuts on the log wall 10, and even if the outer strut 2 sinks following the log wall 10 due to the settling, the curtain plate 15 fits in the settling space 23a, and the curtain plate 15 and the outer support 2 do not collide with each other.

The inner support column 3 is arranged so that the side surface is in contact with the inside of the log wall 10.
Similar to the outer support 2, screws 31b and 32b penetrate the inner support 3 from the side surface, and the screws 31b and 32b are screwed into the log wall 10 as shown in FIGS. 2 and 4. As a result, the inner support column 3 is fixed in contact with the log wall 10.

Here, the upper screw hole 32a through which the screw 32b penetrates is a through hole having a wide opening width in the vertical direction or the length direction of the inner support column 3, a so-called loose hole, and the opening width in the vertical direction is It is provided to correspond to the settling of the log wall 10. That is, even when the log wall 10 is sunk by settling, the screw 32b can be displaced by the opening width in the vertical direction of the screw hole 32a, and moves downward following the log wall 10.

On the other hand, the lower screw hole 31a through which the screw 31b penetrates does not have an opening width corresponding to the settling of the log wall 10, but is a through hole corresponding to the diameter of the screw 31b. , The inner column 3 and the log wall 10 are fixed without being relatively displaced.
Since the screws 31b and 32b are screwed into the log wall 10 through such screw holes 31a and 32a, the movement of the inner support column 3 accompanying the settling of the log wall 10 is restricted only in the downward direction.

Further, in the axial center of the inner support column 3, elongated holes 33a and 34a are formed at the upper end and the lower end, respectively, which are opened upward or downward and have a length in the vertical direction.
One end of the support pin 33c is fitted into the elongated hole 33a at the upper end, and the other end of the support pin 33c is fitted into the elongated hole 33b provided in the beam 13. As a result, the inner support column 3 and the beam 13 are connected.

Here, since the end portion of the beam 13 is inserted into the log wall 10, the fitting portion of the support pin 33c and the elongated hole 33a is affected by the settling of the log wall 10 via the beam 13. Therefore, the inside of the elongated hole 33a constitutes a settling space for absorbing the displacement due to the settling. That is, the beam 13 and the inner support column 3 are connected by the support pin 33c in a slightly separated state, and one end of the support pin 33c is fitted into the elongated hole 33a to a certain depth with a gap left behind. When the log wall 10 is sunk by settling, the support pin 33c can be fitted or loosened into the elongated hole 33a for adjustment.

One end of the support pin 34c is fitted into the elongated hole 34a at the lower end, and the other end of the support pin 34c is fitted into the elongated hole 33b provided on the base 12 via the packing 14. As a result, the inner support column 3 is erected on the foundation 11.
In this example, the packing 14 is sandwiched between the lower end of the inner support column 3 and the foundation 11, so that the moisture of the foundation 11 is not directly transmitted to the log material 101.

As a result of the log wall 10 being sandwiched between the outer support 2 and the inner support 3, bending stress is applied to the log wall 10 made of a plurality of log materials 101 from the outside to the inside or from the inside to the outside. Even so, the log wall 10 stands upright on the foundation 11 or the base 12 without bending.
Further, the bending stress applied to the log wall 10 is released to the beam 13 connected to the inner support column 3 via the inner support column 3 fixed to the inside of the log wall 10. As a result, the log wall 10 can also maintain a straight and upright state against bending stress.

According to the log house 1 according to the present embodiment as described above, it is possible to increase the degree of freedom of the floor plan while ensuring the same structural strength as the fitting structure by the notch.
That is, conventionally, as shown in FIG. 7, in order to realize a large floor area while ensuring the required structural strength, it was necessary to intersect the inner wall at a predetermined position in the middle of the outer wall. However, in the present embodiment, as shown in FIG. 5, the inner wall may be sandwiched between the outer support and the inner support at the predetermined location. With this structure, the inner wall can be omitted without losing the structural strength, and as a result, a large interior space can be realized and the degree of freedom of layout is increased.
In addition, the cost can be reduced because the inner wall is not provided.

As the log material, various logs such as an I-type log, a D-type log, and a round log can be used.
Further, the present invention can be applied even to a log house in which the base 12 is not provided.
Further, the packing 14 is appropriately provided, and in some cases, the foundation 11 and the inner support column 3 are not provided, or in some cases, the packing 14 is provided between the foundation 11 and the base 12. The invention can be applied.

Further, in the above-described embodiment, the elongated hole 33a constituting the settling space is provided at the upper end of the inner support column 3, but the present invention is not limited to this, and as shown in FIG. 6A, the beam is formed as the elongated hole 33d. 13 may be provided, or as shown in FIG. 6B, the elongated holes 33e may be provided at the lower end of the inner support column 3, and the present invention can be applied to any of the examples. be.
Further, the support pins 33c and 34c may be round bars or screw rods that are partially or wholly threaded, and the elongated holes 33a into which the support pins 33c and 34c are fitted. The 33b, 34a, 34b may be provided with an inner peripheral surface that matches the shape of the support pins 33c, 34c.

Further, in the above-described embodiment, in the outer support column 2, a screw hole 22a made of a loose hole corresponding to settling is provided below, and a screw hole 21a formed as a through hole corresponding to the diameter of the screw 21b is provided above. On the contrary, the upper part may be a loose hole and the lower part may be a through hole.
Similarly, for the inner support column 3, the upper part may be a loose hole and the lower part may be a through hole.

Further, the above-mentioned log house 1 can also be provided as an assembly kit including a member constituting the log house 1, that is, a log wall 10 composed of a plurality of log materials 101, an outer support column 2, an inner support column 3, and the like. .. The log house 1 is constructed by assembling this assembly kit according to a predetermined process.

1 Log house 10 Log wall 101 Log material 11 Foundation 12 Base 13 Beam 14 Packing 15 Curtain board 16 Drainer 2 Outer support 3 Inner support

Claims (8)

It is a log house equipped with a log wall made by stacking multiple log materials in the height direction.
The outer strut that sandwiches the log wall between the outer strut and the inner strut,
It has the inner strut, which is provided at a position corresponding to the outer strut across the log wall and sandwiches the log wall from the inside to the outer strut.
The upper end of the inner strut is connected to the beam,
A log house that features that. At the upper end of the inner support column, an elongated hole into which a support pin connected to the beam is fitted is formed.
The elongated hole is provided with a settling space for absorbing the displacement of the log wall due to settling.
The log house according to claim 1. It is a log house equipped with a log wall made by stacking multiple log materials in the height direction.
The outer strut that sandwiches the log wall between the outer strut and the inner strut,
It has the inner strut, which is provided at a position corresponding to the outer strut across the log wall and sandwiches the log wall from the inside to the outer strut.
For each of the outer strut and the inner strut, a screw penetrates and is screwed into the log wall.
A log house that features that. The end of the beam is inserted in the above log wall,
The upper end of the inner strut is connected to the beam,
The log house according to claim 3. An elongated hole is formed at the upper end of the inner support column into which a support pin connected to the beam is fitted.
The elongated hole is provided with a settling space for absorbing the displacement of the log wall due to settling.
The log house according to claim 4. The above inner support is erected on the foundation,
The log house according to any one of claims 1 to 5. A log wall made by stacking multiple log materials in the height direction,
The inner strut that sandwiches the log wall from the inside to the outer strut,
It has the outer strut, which is provided at a position corresponding to the outer strut across the log wall and sandwiches the log wall from the outside to the inner strut.
The upper end of the inner strut is connected to the beam,
A log house assembly kit that features this. A log wall made by stacking multiple log materials in the height direction,
The inner strut that sandwiches the log wall from the inside to the outer strut,
It has the outer strut, which is provided at a position corresponding to the outer strut across the log wall and sandwiches the log wall from the outside to the inner strut.
For each of the outer strut and the inner strut, a screw penetrates and is screwed into the log wall.
A log house assembly kit that features this.

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