JPH09317727A - Wood joint metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improved wood joint metal which is improved seismic resistance and suppress damage of a building and a structure more than the conventional ones by constituting a lot of claws of a plurality kinds of claws having different length. SOLUTION: A lot of claws 2, 2,..., which are formed by applying the inverse torsion to a pair of claws 2, 2 opposed to each other, are composed of two kinds of claws of long claws 2a, 2a,... and short claws 2b, 2b,..., and while the long claws 2a, 2a,... suppress metals from being floated from the wood during an earthquake, the short claws 2b, 2b,... having higher rigidity compared with the long claws 2a, 2a in relation to the force bending the claws 2, 2,... act to suppress it. This constitution can improve its seismic resistance compared with the conventional wood joint metals of this kind.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a wood joining fitting used for connecting timbers in the fields of construction and construction, for example.

[0002]

2. Description of the Related Art An example of the use of wood joining metal fittings will be explained by taking the case of building a wooden house as an example. For the past two years, a glazing has been used to join two adjacent materials such as a base and a frame.

However, since the thickness of the transitional portion between the claws is relatively large at about 6 mm, the braces made of rolled steel bar having a substantially square cross section, that is, so-called square steel, are relatively thick. Even if it is driven into, etc., it cannot be driven until it is on the same plane (icicle) as the wood to be driven, such as the pillar material (if it is forcibly driven, the wood may crack).
Therefore, when it is necessary to put a plate on the pillar material that has been struck, the protruding portion of the shaving will be an obstacle, and the depth corresponding to that of the wood to be struck in advance will be obstructed. It requires time and effort to process the step.

Conventionally, a so-called triangular plate, which is a small nail made by cutting a zinc-iron plate into a triangular shape, is also used. In the case of a triangular plate, the wall thickness is about 2 mm.
Although the thickness is 2.6 mm, which is thinner than that of glazing, when the triangular plate is driven into a pillar material, etc., it is not possible to drive it until it is flush with the target wood. Therefore, when it is necessary to put a plate on a pillar material or the like on which a triangular plate is struck, the projecting portion of the triangular plate becomes an obstacle, so it may be shallower than in the case of grazing. However, it also requires the time and effort to pre-process the wood that hits the triangular plate to a depth corresponding to that.

On the other hand, as shown in FIGS. 1 to 3, a thin iron plate 1 having a wall thickness of about 1 mm is cut and raised to form a large number of claws 2, 2 ,. The wood joining metal fitting 100 that is twisted in the longitudinal direction, which is the wood biting direction, is more specifically a pair of members that are displaced from each other between adjacent rows as shown in FIG. 1 and face each other as shown in FIG. A wood joining metal fitting 100 in which the nails 2 and 2 are twisted in the opposite directions has been previously proposed.
When it is driven into the adjacent woods 3 and 3 shown in FIG. 1, the wood joining metal fitting 100 having a thin wall thickness of about 1 mm can be flatly driven into the same surface as the woods 3 and 3 to be driven. When it is necessary to put a plate on the timbers 3 and 3 that have been hit, it is possible to put the plate on the wood joining metal fitting 100 as it is, and as in the case of scribing or triangular plate striking, It is possible to omit the step of pre-processing the target wood with a depth corresponding to that,
Workability is excellent, and on the other hand, a large number of claws 2, 2, ... Twisted in the longitudinal direction, which is the direction of biting into wood, simultaneously bites into the woods 3 and 3, and the wood joining metal fitting 100 once bites into the woods 3 and 3. , Is firmly fixed to the woods 3, 3 by the twisting effect of the claws 2, 2, ... and does not move easily.
It has been confirmed that the earthquake resistance of the building can be improved against both vertical and vertical shaking.

[0006]

The effects obtained by using a wood joining fitting in which a large number of claws are cut and raised on a thin iron plate are as described above, and this kind of wood joining fitting is superior to the dazzle and the triangular plate. Although it is excellent in both workability and seismic resistance, the following problems have been raised in the field of construction regarding seismic resistance.

[0007] In other words, after a comparatively large earthquake, when examining the damage situation toward the restoration of the house, there was no phenomenon that the metal fitting was lifted from the wood, but the phenomenon that the nail was bent was found. After the Great Hanshin Earthquake, which occurred on a rare scale in recent years, the residents' sense of crisis regarding the damage to their houses has increased significantly.

According to the present invention, a large number of nails are cut on a thin-walled metal, which does not require a step of a depth corresponding to the wood to be driven in advance, as in the case of slashing or triangular plate driving. Targeting the raised wood joining metal fittings, the purpose is to further improve its earthquake resistance compared to the conventional type wood joining metal fittings, and to prevent damage to buildings and structures more than before. , To provide an improved wood joining fitting.

[0009]

[Means for Solving the Problems] The above object is to provide a wood joining metal fitting in which a thin metal is cut and raised to form a large number of nails, and further twisted in a longitudinal direction which is a wood biting direction of the nails. This is achieved by configuring the claw with a plurality of types of claws having different lengths.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to an embodiment shown in FIG. 4, in which the same reference numerals as those in the conventional example shown in FIGS. Is formed by cutting and raising a thin metal (in the illustrated embodiment, a thin iron plate 1) to form a large number of claws 2, 2, ... And twisting the claws 2, 2 ,. The large number of nails 2 in the added wood joining fitting 100
The gist of the present invention is that each of 2, ... Is composed of a plurality of types of nails having different lengths.

In the present embodiment, a large number of claws 2, 2, ..., Which are twisted in the opposite direction to a pair of claws 2, 2 facing each other, are provided with long claws 2a, 2a, ... And short claws 2b, 2b. ，
, And the long claws 2a, 2a, ... prevent metal fittings from rising from the wood during an earthquake. On the other hand, with respect to the force of bending the claws 2, 2, ...
Short claws 2b, 2b, ... Having rigidity as compared with a, 2a ,.
Acts to prevent this, and
It is possible to further improve the seismic resistance of the conventional type wood joining metal fitting.

The wood joining metal fitting 1 which is the object of the present invention
When the seismic resistance of 00 is equal to that of the conventional wood joining metal fitting of this type, for example, in the area where the occurrence rate of earthquake is small and the size thereof is not so large, the wood joining metal fitting 100 of the present invention is targeted.
If you want to build a building or structure by exporting
It is possible to reduce the number of claws 2, 2, ... Formed by cutting and raising the thin iron plate 1, and the manufacturing cost of the mold can be reduced accordingly, and the time and effort required for post-processing such as polishing of the toes are reduced. It is also possible to reduce the cost, and eventually contribute to the reduction of the product cost.

Further, the wood joining metal fitting 1 to which the present invention is applied
For 00, it is good to prepare about 20 kinds of metal fittings in size so that it is possible to quickly cope with this, assuming square bars and pillars with various sizes in advance, and there is also a dedicated metal fitting for corners. It is good to prepare about 10 kinds of large and small.

Further, in the illustrated embodiment, the case where the wood joining fitting 100 is made of an iron material has been exemplified, but there is no problem in using another metal material in place of the iron material if there is no problem in terms of seismic strength.

[0015]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a large number of thin-walled metals are not required to be subjected to a step corresponding to the depth of the wood to be driven in advance, as in the case of scribing or triangular plate driving. According to the present invention, a plurality of claws are formed by cutting and raising a thin metal and further twisted in the longitudinal direction which is the wood biting direction of the claw. By adding a plurality of types of claws having different lengths to each other without uniformly aligning the plurality of claws in the added wood joining metal fitting to the same length, the metal fitting is likely to float from the wood during an earthquake. On the other hand, the long claw prevents the long claw from bending, while the short claw having rigidity as compared with the long claw acts to prevent the bending force of the claw. Its earthquake resistance compared to wood joining hardware Et al to be improved, thus building -
Damage to the structure can be suppressed more than before.

[Brief description of drawings]

FIG. 1 is a plan view of a conventional wood joining fitting.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 shows an embodiment of a wood joining fitting according to the present invention,
It is sectional drawing corresponding to the AA line of FIG.

FIG. 5 is a diagram showing a specific example of a case where wood joining metal fittings are driven into two adjacent materials.

[Explanation of symbols]

100 ... Wood joining metal fitting, 1 ... Thin iron plate, 2 ... Claw, 2a ...
Long nail, 2b ... Short nail, 3 ... Wood.

Claims (2)

[Claims] 1. A wood joining fitting in which a thin metal is cut and raised to form a large number of claws, and the claws are twisted in a longitudinal direction, which is a wood biting direction.
A wood joining fitting characterized by being made up of multiple types of nails of different lengths. 2. A wood-joining fitting in which a thin metal is cut and raised to form a large number of claws, and the claws are twisted in a longitudinal direction, which is a direction in which the claws penetrate into the wood.
A wood joining fitting characterized by being configured with two types of nails, a long nail and a short nail.