JPH09144164A - Fixed structure of log material - Google Patents

Abstract

(57) Abstract: In a fixing structure for a log material, it is possible to eliminate the trouble of forming through holes in all the log materials, and moreover, reliably fix a plurality of log materials even when a thin log material is used. SOLUTION: In a log material fixing structure for vertically fixing a plurality of log materials 6 stacked in a wall shape, brackets are respectively attached to the uppermost girder material 12 and the lowermost base material 20 of the plurality of log materials 6. 28 is attached,
A plurality of log members 6 are fixed in the vertical direction by bolts 30 extending in the vertical direction near the outside of the log member 6 and connecting the upper and lower brackets 28, 28.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a fixing structure for a log material.

[0002]

2. Description of the Related Art In recent years, as a building in a resort or the like, a log house, which is constructed by stacking log materials in a barbed shape by a construction method similar to that of a school warehouse, has begun to spread in place of a general wooden material. . FIG. 7 shows a conventional log material fixing structure. Conventionally, as shown in FIG. 7, a bolt hole b penetrating vertically in the end portion of a plurality of stacked log materials a.
And a nut e is screwed into a lower end portion of a through bolt c inserted into the bolt hole b through a washer d, so that the log material a at the uppermost stage (girder material a1) to the log material a at the lowermost stage is formed. Up to (base material a2) was fixed. As a result, the roof blowing force generated by strong winds
The transmission is made in the order of the girder material a1 → the bolt c → the base material a2.

[0003]

However, in the above-described conventional log material fixing structure, it is necessary to form the bolt holes b in all the log materials a from the top to the bottom, and it is troublesome to process the bolt holes b. There is a problem that it costs. Further, in a small log house, when the log material a is thin, the direction of the drill f is deviated due to the influence of wood grain,
The machined hole g is bent (see FIG. 8), the log material a is broken when the bolt hole b is machined, or the cross-sectional area of the log material a is lost by the amount of opening the bolt hole b, resulting in reduced strength. Due to such reasons, it was technically difficult to process the bolt holes b. As a conventional example of a structure in which rod-like bodies are assembled in a barbed shape, there is an assembled frame body described in Japanese Utility Model Laid-Open No. 1-96508, and a conventional example of fixing the structure using bolts is There is a turnbuckle described in Japanese Patent No. 57-5511.

The present invention has been made in view of the above-mentioned problems of the prior art, and saves the labor of forming the through holes in all the log materials, and further, does not allow the through holes to be opened in the vertical direction. It is an object of the present invention to provide a log material fixing structure capable of reliably fixing a plurality of log materials even when the log material is thin.

[0005]

The present invention has the following configuration to achieve the above object. That is, the present invention, in a fixing structure of a log material for vertically fixing a plurality of log materials stacked in a wall shape, a bracket is provided on each of the uppermost girder material and the lowermost base material of the plurality of log materials. A log member fixing structure is characterized in that, while being attached, the plurality of log members are fixed in the vertical direction by a connecting member that extends in the vertical direction outside the plurality of log members and connects the two upper and lower brackets.

According to the present invention, since the plurality of log members are fixed in the vertical direction by the connecting member that connects the two upper and lower brackets, the uppermost girder material, the lowermost base material, and the uppermost girder material. The log material located between the beam material and the bottom base material is securely fixed in the vertical direction. Therefore, the roof blowing force generated by the strong wind is transmitted in the order of roof → girder → upper bracket → connecting member → lower bracket → base material, and the strength of the roof against the blowing force can be secured. it can.

Further, in the present invention, since the connecting member for connecting the upper and lower brackets extends in the vertical direction outside the plurality of log members, it is not necessary to provide through holes penetrating in the vertical direction in all the log members. . Further, since the through hole is not necessary, a plurality of log materials can be reliably fixed even if a thin log material is used in a small log house.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a log house according to the present embodiment. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a sectional view taken along line III-III in FIG. FIG. 4 is a perspective view of the bracket according to this embodiment. FIG. 5 is a perspective view of a log material fixing structure according to a first modification of the present embodiment. FIG. 6 is a perspective view of a log member fixing structure according to a second modification of the present embodiment.

As shown in FIGS. 1 and 2, the log house 2 according to this embodiment has a thickness of 44 (m) on the foundation 4.
m) and the log material 6 having a height of 134 (mm) are alternately stacked in a substantially flat shape in plan view, and the log materials 6 are incorporated into one another to form the peripheral wall of the building. On the front side and the back side of this peripheral wall, as shown in FIG.
The log members 8 are further stacked from the upper end of the peripheral wall to form a substantially triangular gable wall, and a gable roof 10 is provided on the gable wall. As shown in FIG. 3, the uppermost one of the plurality of log members 6 functions as a girder member 12 and projects to the front side to reach the front edge of the roof 10. In addition, as shown in FIG. 3, the second log material 6A from the uppermost stage also projects from the edge end surface of the other intermediate log material 6.

On the front side of the log house 2, as shown in FIG. 3, a terrace 14 covered with a roof 10 is provided.
This terrace 14 includes a terrace joist 14a laid over the foundation 4, a terrace floor 14b placed on the terrace joist 14a, and a terrace face plate 14c disposed below the front edge of the terrace floor 14b. Composed of and. In addition, as shown in FIG. 1, a window 16 is provided on the left side in front of the peripheral wall,
On the right side is a wooden door 18 with glass.

The lowest one of the plurality of log members 6 is placed on the foundation 4 as shown in FIG.
It also functions as a terrace joist 1 as shown in FIG.
4a is extended to the front edge of the terrace floor 14b along the outer side surface of 4a, and the end is supported by the foundation 4. In addition, the second log material 6B from the bottom is also the terrace floor 14 as shown in FIG.
It extends to the front edge of the terrace floor 14b above b. In addition, in FIG. 3, reference numeral 22 denotes a living room floor supported by the foundation 4 via the floor joist 24.

Next, the fixing structure of the log material 6 will be described. As shown in FIG. 2, in the present embodiment, the left and right protruding portions 26a on the front side of the substantially well-shaped peripheral wall and the left and right protruding portions 26b on the rear side are provided at four positions in total.
The fixing structure of the present invention is applied.

As shown in FIG. 3, the fixing structure of the log material of this embodiment is such that brackets 28 are attached to the uppermost girder material 12 and the lowermost base material 20, respectively, and the intermediate log material 6 is attached. A plurality of log members 6 are fixed in the up-down direction by bolts (corresponding to connecting members) 30 that extend in the up-down direction near the edge end face and outside the log member 6 and connect the upper and lower brackets 28, 28.

As shown in FIG. 4, the bracket 28 includes a pair of left and right side wall portions 28a, which are fitted on the left and right side surfaces of the log member 6, respectively.
28a and a front wall portion 28b having a U-shaped cross section for connecting the lower end portions of the left and right side wall portions 28a, 28a (the lower end portion of the upper bracket 28 and the upper end portion of the lower bracket 28). A projecting portion 28c that projects in a plate shape at the lower end of the front surface of the front wall portion 28b, and a substantially triangular reinforcing portion 28 that connects the side edge of the projecting portion 28c and the side edge of the front wall portion 28b.
For example, the portion other than the reinforcing portion 28d is integrally formed by press molding and the reinforcing portion 28d is welded to the press-formed product.

Left and right side walls 28 of the bracket 28
As shown in FIG. 4, bolt holes 28a1 are provided at the upper ends of a and 28a, respectively, and bolt holes (not shown) formed in the girder material 12 or the base material 20 as shown in FIG.
Insert bolt 32 with bolt hole 28a1
The brackets 28, 28 are fixed to the girder material 12 or the base material 20 by tightening with a nut (not shown).
In this state, as shown in FIG. 3, between the facing surfaces of the left and right side wall portions 28a, 28a of the bracket 28, the second log member 6A and the girder member 12 from the uppermost stage or the second log member from the lowermost stage is provided. The material 6B and the base material 20 are inserted. That is, the bracket 28 has front surfaces of the left and right side wall portions 28a, 28a so that the log material 6A (6B) that is adjacent to the girder material 12 (or the base material 20) and extends long to the front surface side can escape. The side is open.

The protruding portion 28c of the bracket 28 is shown in FIG.
As shown in FIG. 3, a bolt hole 28c1 penetrating in the vertical direction is formed, and as shown in FIG.
By passing the bolt 30 through each bolt hole 28c1 of 8 and 28 and tightening it with the nut 34, the upper and lower brackets 28 and 28 are tightly connected in the vertical direction, and the plurality of log members 6 are integrally fixed from top to bottom.

According to the present embodiment configured as described above, since the plurality of log members 6 are fixed in the vertical direction by the bolts 30 connecting the upper and lower two brackets 28, 28, the girder member 12, the base member. 20 and the log material 6 positioned in the middle thereof can be reliably fixed in the vertical direction. Therefore, the blowing force of the roof 10 caused by the strong wind,
The roof 10 can be transmitted in order of the girder material 12 → the bracket 28 → the bracket 30 → the bracket 28 → the base material 20, and the strength of the roof 10 against the blowing force can be secured.

Since the bolts 30 connecting the upper and lower brackets 28 and 28 extend in the vertical direction outside the log member 6, it is possible to save the labor of providing through holes penetrating in the vertical direction in all the log members 6. You can Further, since the through hole is not necessary, even when a thin log material 6 is used as in the present log house 2, a plurality of log materials 6 can be reliably secured without causing any inconvenience in manufacturing or construction. Can be fixed.

This embodiment is a preferred embodiment of the present invention, and the technical scope of the present invention is not limited to this embodiment. For example, the bracket and the connecting member according to the present invention are not limited to the bracket 28 and the bolt 30, and may be the first modification and the second modification shown in FIGS. 5 and 6, respectively. .

As shown in FIG. 5, the first modification is particularly suitable when the end faces of all the log members 6 are flush with each other, and the bracket 36 used is made of the beam member 12. The bracket 2 is structurally composed of a fitting portion 36a having a U-shaped cross section that fits only at the end portion or only at the end portion of the base material 20, and a projecting portion 36b protruding from the fitting portion 36a.
Simpler than 8. The fitting portion 36a includes the bolt 3
8 and nuts (not shown) are fastened to the girder material 12 or the base material 20, and the upper and lower protrusions 36b, 36b are
The bolt 40 and the nut 42 tightly connect in the vertical direction.

The second modification is, as shown in FIG. 6, a girder member 1
This is particularly suitable when only 2 and the base material 20 project from the end surface of the intermediate log material 6, and the bracket 44 used has a shape that is open in a substantially U-shape upward or downward. The upper bracket 44 is a girder material 12
While being fitted from below to the end of the bracket, the lower bracket 4
4 is fitted to the end of the base material 20 from above, and both brackets 44, 44 have bolts 4 facing each other.
A plurality of log members 6 are integrated in the up-down direction by being tightly connected to 6.

[0022]

As described above, according to the present invention, in the fixing structure of the log material, it is possible to save the labor of forming the through holes in all the log materials and to prevent the through holes from being formed in the vertical direction. Even if the log material is thin, a plurality of log materials can be reliably fixed.

[Brief description of the drawings]

FIG. 1 is a front view of a log house according to the present embodiment.

FIG. 2 is a sectional view taken along the line II-II in FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of a bracket according to the present embodiment.

FIG. 5 is a perspective view of a log material fixing structure according to a first modified example of the present embodiment.

FIG. 6 is a perspective view of a log material fixing structure according to a second modification of the present embodiment.

FIG. 7 is a perspective view of a conventional log material fixing structure.

FIG. 8 is a side view of a log material showing a state in which a through hole is formed in a thin log material in a conventional log material fixing structure.

[Explanation of symbols]

 6 Log material 12 Girder material 20 Base material 28 Bracket 30 Bolt (corresponding to connecting member) 36 Bracket 40 bolt (corresponding to connecting member) 44 Bracket 46 bolt (corresponding to connecting member)

Claims (1)

[Claims] 1. In a log material fixing structure for vertically fixing a plurality of log materials stacked in a wall shape, a bracket is attached to each of the uppermost girder material and the lowermost base material of the plurality of log materials. In addition, a plurality of log members are fixed in the vertical direction by a connecting member that extends in the vertical direction outside the plurality of log members and connects the two upper and lower brackets to each other.