JP2018123666A - Log house and log house construction kit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a log house capable of securing structural strength thereof while enhancing a degree of freedom of a room arrangement.SOLUTION: A log house 1 comprises log walls 10 constructed by stacking a plurality of sideway log materials 101 in a height direction. The log house 1 also has outer columns 2 and inner columns 3. Each outer column 2 has a shape of a vertically long rod and is arranged at an outer side of the log wall 10 so as to place the log wall 10 between the same and the inner column 3. Each inner column 3 has the shape of the vertically long rod and is arranged at an inner side of the log wall 10 so as to place the log wall 10 between the same and the outer column 2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a log house and a construction method thereof, and relates to a log house and a method of coexisting a wide indoor space and structural strength.

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

JP 2008-291518 A JP 2009-30419 A

That is, as shown in FIG. 7, when an attempt is made to achieve a certain floor area or more, a notch is formed in the middle of the outer log wall 10a and an inner log wall 10b (inner wall formed with a notch at the end portion). ), And the notch of the outer log wall 10a and the notch of the log wall of the inner 10b are crossed and fitted to ensure the structural strength. However, the fact that an inner wall must be provided means that the floor plan is restricted, and an indoor space having a certain size without an inner wall cannot be realized.
Also, providing such an inner wall leads to an increase in material cost.

  Then, an object of this invention is to provide the log house which can ensure the structural strength, raising the freedom degree of floor plan.

  In order to achieve the above object, a log house according to one aspect of the present invention is a log house having a log wall formed by stacking a plurality of laid log materials in the height direction, and is long in the vertical direction. A rod-shaped outer column that sandwiches the log wall from the outside to the inner column, and a rod-shaped column that has a length in the vertical direction and clamps the log wall from the inner to the outer column. And the above-mentioned inner support column.

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

  In addition, a long hole into which a support pin connected to the beam is inserted is formed at the upper end of the inner support column, and a settling space for absorbing displacement due to settling of the log wall is provided in the long hole. It is good also as what has been done.

Here, the support pin is a substantially bar-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.
Settling refers to the phenomenon in which a log wall is piled up in a state where the log material is laid down to form a log wall, and this log wall sinks due to drying shrinkage. About 2% of the time, and settles in about two years after the completion of the log house. In order to cope with this settling, the log house can be retightened with a bolt such as a loose hole at the bolt tightening point.

  Moreover, the said inner side support | pillar is good also as what is standing on the foundation.

  Further, the outer strut and the inner strut may be threaded through and threaded into the log wall.

  Also, a log house assembly kit according to another aspect of the present invention includes a log wall formed by stacking a plurality of laid log materials in a height direction, and the log wall having a length in a vertical direction on the inside. 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 strut and the inner strut from the outside. Features.

  ADVANTAGE OF THE INVENTION According to this invention, the structural intensity | strength can be ensured, raising the freedom degree of floor plan.

It is the 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 the side view which showed the structure of the log house which concerns on this embodiment. It is the perspective view which showed the structure of the log house which concerns on this embodiment. It is the 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 the schematic diagram which showed the structure of the log house built by the conventional construction method.

Hereinafter, a log house according to an 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 placed on the ground, a prismatic base 12 fixed on the foundation 11, and the foundation 12. In addition to the log wall 10, it is constituted by a beam 13, a roof (not shown) and the like.

The log wall 10 is formed by stacking a plurality of laid log materials 101 in the height direction. In the vicinity of the end portion of the log material 101, a notch cut into a predetermined shape is formed, and the notches of the log material 101 constituting the two log walls 10 intersecting each other are fitted.
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 support columns including the outer support column 2 and the inner support column 3 at a predetermined location. Each of the outer support column 2 and the inner support column 3 is a rod-shaped support column, and is arranged with the length direction aligned with the vertical direction.

The outer support column 2 is disposed with the side surface in contact with the outer side of the log wall 10.
As shown in FIGS. 2 and 3, screws 21 b and 22 b penetrate from the side surfaces of the outer support column 2, and the screws 21 b and 22 b 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 passes is a so-called loose hole having a wide opening width in the vertical direction or the length direction of the outer support column 2, and the opening width in the vertical direction is It is provided to cope with settling of the log wall 10. That is, even when the log wall 10 sinks due to settling, the screw 22b can be displaced by the opening width in the vertical direction of the screw hole 22a, and moves downward following the log wall 10.

On the other hand, the upper screw hole 21a through which the screw 21b passes does not have an opening width corresponding to the settling of the log wall 10 and is a through hole according to the diameter of the screw 21b. The outer support column 2 and the log wall 10 are fixed without relative displacement.
Since the screws 21b and 22b are screwed into the log wall 10 through the 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.

  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 during settling. The settling space 23a is formed by cutting out a part of the inner side of the outer support column 2 that abuts the log wall 10. Even if the outer support column 2 sinks following the log wall 10 due to settling, the curtain plate 15 fits in the settling space 23a, and the curtain plate 15 and the outer support column 2 do not collide with each other.

The inner support column 3 is disposed with the side surface in contact with the inner side of the log wall 10.
Similar to the outer column 2, screws 31 b and 32 b penetrate the inner column 3 from the side as shown in FIGS. 2 and 4, and the screws 31 b and 32 b are screwed into the log wall 10. Thereby, the inner support column 3 is fixed in a state of contacting the log wall 10.

  Here, the upper screw hole 32a through which the screw 32b passes is a so-called loose hole having a wide opening width in the vertical direction or the length direction of the inner support column 3, and the opening width in the vertical direction is It is provided to cope with settling of the log wall 10. That is, even when the log wall 10 sinks due to 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 passes does not have an opening width corresponding to the settling of the log wall 10, and is a through hole according to the diameter of the screw 31b. The inner support 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 the 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 having openings in the vertical direction are formed at the upper end and the lower end, respectively, opening upward or downward.
One end of a support pin 33c is fitted into the long hole 33a at the upper end, and the other end of the support pin 33c is fitted into a long hole 33b provided in the beam 13. Thereby, 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 insertion portion of the support pin 33 c and the long hole 33 a is affected by the settling of the log wall 10 via the beam 13. Therefore, a settling space for absorbing displacement due to settling is formed in the long hole 33a. That is, the beam 13 and the inner support column 3 are connected to each other by the support pin 33c in a slightly separated state, and one end of the support pin 33c is inserted into the long hole 33a to a certain depth with a gap in the back. When the log wall 10 sinks due to settling, the support pin 33c can be adjusted by fitting or loosening into the elongated hole 33a.

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

In this way, as a result of the log wall 10 being sandwiched between the outer support column 2 and the inner support column 3, a bending stress was applied to the log wall 10 made of a plurality of log members 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 column 3 through the inner column 3 fixed to the inside of the log wall 10. As a result, the log wall 10 can maintain the straight upright state against the bending stress.

According to the log house 1 which concerns on the above this embodiment, the freedom degree of a floor plan can be raised, ensuring the structural strength similar to the fitting structure by a notch.
That is, as shown in FIG. 7 in the prior art, in order to realize a large floor area while ensuring the necessary structural strength, it was necessary to cross the inner wall at a predetermined location 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 column and the inner support column at the predetermined location. With this structure, the inner wall can be omitted without losing the structural strength. As a result, a wide indoor space can be realized, and the degree of freedom in layout can be increased.
Further, 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.
In addition, the packing 14 is provided as appropriate, and the foundation 11 and the inner support column 3 may not be provided, or may be provided between the foundation 11 and the base 12. The invention can be applied.

In the above-described embodiment, the long hole 33a constituting the settling space is provided at the upper end of the inner support column 3. However, the present invention is not limited to this, and as shown in FIG. 13 may be provided at the lower end of the inner column 3 as a long hole 33e as shown in FIG. 6 (b), and the present invention can be applied to any of the examples. is there.
Further, the support pins 33c and 34c may be round bars, or may be screw bars partially or wholly threaded. The long holes 33a and the support pins 33c and 34c are inserted therein. 33b, 34a, 34b may be provided with an inner peripheral surface that matches the shape of the support pins 33c, 34c.

In the above-described embodiment, the outer support column 2 is provided with a screw hole 22a formed of a loose hole corresponding to settling on the lower side and a screw hole 21a formed of a through hole corresponding to the diameter of the screw 21b provided on the upper side. Conversely, the upper portion may be a loose hole and the lower portion may be a through hole.
Similarly, the inner support column 3 may have a loose hole on the upper side and a through hole on the lower side.

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

DESCRIPTION OF SYMBOLS 1 Log house 10 Log wall 101 Log material 11 Foundation 12 Base 13 Beam 14 Packing 15 Curtain board 16 Drainer 2 Outside support 3 Inside support

Claims (8)

A log house with a log wall made by stacking multiple log materials in the height direction,
An outer column that sandwiches the log wall from the outside to the inner column;
The inner struts sandwiching the log wall between the outer struts from the inside,
The upper end of the inner strut is connected to the beam,
A log house characterized by that. A long hole into which a support pin connected to the beam is inserted is formed at the upper end of the inner support column.
The elongated hole is provided with a settling space for absorbing displacement due to settling of the log wall.
The log house according to claim 1. A log house with a log wall made by stacking multiple log materials in the height direction,
An outer column that sandwiches the log wall from the outside to the inner column;
The inner struts sandwiching the log wall between the outer struts from the inside,
For each of the outer strut and the inner strut, a screw passes through and is screwed to the log wall.
A log house characterized by that. The end of the beam is inserted into the log wall,
The upper end of the inner strut is connected to the beam,
The log house according to claim 3. A long hole into which a support pin connected to the beam is inserted is formed at the upper end of the inner support column.
The elongated hole is provided with a settling space for absorbing displacement due to settling of the log wall.
The log house according to claim 4. The inner strut is erected on the foundation,
The log house according to any one of claims 1 to 5. A log wall formed by stacking multiple log materials in the height direction;
An inner strut for sandwiching the log wall from the inner side to the outer strut;
The outer struts sandwiching the log wall from the outside to the inner struts,
The upper end of the inner strut is connected to the beam,
A log house assembly kit. A log wall formed by stacking multiple log materials in the height direction;
An inner strut for sandwiching the log wall from the inner side to the outer strut;
The outer struts sandwiching the log wall from the outside to the inner struts,
For each of the outer strut and the inner strut, a screw penetrates and is screwed to the log wall.
A log house assembly kit.

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