JP3881899B2 - Withdrawal hardware - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an attracting hardware often used in a wooden frame house.
[0002]
[Prior art]
A structure in which the end of the other long material is brought into contact with one long material and assembled is often found in a house with a wooden frame structure.
In a house with a wooden frame structure, in addition to the foundation and the foundation, the foundation and the pillar, the adhesion between each member, such as the connection between the pillar and the beam or the brace, are important. It has been.
Of these, attracting hardware 5 as shown in FIGS. 7 and 8 has been used for the connection between the pillar and the horizontal member such as the base and the pillar or the pillar and the beam. Reference numeral 1 is a fabric foundation, reference numeral 2 is a base, reference numeral 3 is an anchor bolt, and reference numeral 4 is a pillar.
[0003]
FIG. 10 is a corner of a wooden framed house. A base 2 is fixed to a cloth foundation 1 with anchor bolts 3 each having a lower part fixed to the cloth foundation 1 in advance, and pillars 4 are erected at the corners. is there. The attracting hardware 5 is fixed to the front face of the pillar 4 with the mounting bolt 6, the attracting bolt 7 is engaged with the nut 8, and the pillar 4 and the base 2 are attracted to be tightened with a force of about 20 to 30 kN. Yes.
The attracting metal 5 is made as a unit by making parts of a fixed plate portion 9 and a through-engaging portion 10 both made of a strong and thick steel plate and welding them together. Further, the pulling bolt 7 has a lower part fixed to the cloth foundation 1 in advance and an upper part penetrating the base 2.
[0004]
This attracting metal 5 is widely used, but has the following drawbacks.
Since two parts of the fixed plate portion 9 and the through-engaging portion 10 are made and manufactured by welding them, it takes time and labor, and the cost increases.
Since the fixing plate portion 9 is a single piece, it needs to be long in order to withstand strong tightening (large pulling strength), which may hinder the subsequent process in construction.
Since the fixing bolts 6 to be fixed pass through the pillars 4 and are arranged in a vertical row, there is a risk of breaking the pillars 4.
Since the fixed plate portion is flat, if a strong force is applied to the penetrating engagement portion 9, deformation may occur such that the lower portion of the fixed plate portion is pulled out to the outside.
The hole of the through-engagement part 10 is circular so that the upper part of the drawing bolt 7 penetrates, and there is no allowance in the front and rear (the protruding direction of the through-engagement part 10). If there is, it becomes difficult to engage the drawing bolt 7 with the drawing metal 5.
[0005]
FIG. 11 is another example of the conventional attracting hardware 5. Although this attracting metal 5 is a so-called box shape and is structurally strong, it has a side wall 11 on both sides, so that it is difficult to perform a tightening operation in which a nut 78 is screwed into the attracting bolt 7 and screwed. is there. Moreover, it becomes a little large and heavy, and it takes time and effort for manufacturing such as attaching the side wall 11 by welding, resulting in high costs.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide an attracting hardware that is easy to manufacture, hardly damages a column or a horizontal member for mounting, and that can be easily engaged with an attracting bolt.
[0007]
[Means for Solving the Problems]
It is set as the attracting metal object provided with the through-engagement part integrally provided between the left and right fixing plate parts. This attracting metal is made of a single plate material (thick steel plate) having a cross-linked plate portion connected between the left and right fixed plate portions, and the cross-linked plate portion in the out-of-plane direction (front-rear direction) of the fixed plate portion. The penetrating engagement portion is bent, protruded, and has a circular, elliptical, or U-shaped cross section. By forming the penetrating engagement portion, the left and right fixing plate portions are aligned and close to a surface that contacts one side surface of the column, and the longitudinal direction thereof is arranged in parallel with the penetrating direction of the penetrating engagement portion. In this way, the structure is simple and can be manufactured without welding work. In addition, for convenience of explanation, the top and bottom, left and right, and front and rear are defined for the attracting metal, but in practice, the attitude of the attracting metal is various, and for example, the up and down direction and the front and back direction may change. .
[0008]
A through bolt is inserted into the through-engaging portion, and a nut is screwed into the tip to engage. The fixing plate portion is provided with a plurality of fixing tool holes. The fixing tool is a coach screw, a lag screw, a nail or the like, and can be distributed and arranged so that the fixing positions do not concentrate in a straight line.
The penetrating engagement portion may be formed at any position in the vertical direction between the left and right fixed plate portions, but the position is the lower portion, and the bottom surface of the penetrating engagement portion is penetratingly engaged from the fixed plate portion side. If the structure is inclined upward in the protruding direction of the part (from rear to front), after attaching a plywood such as a floorboard, the attracting hardware 5 is mounted on the top surface of the floorboard, and then the pulling bolt 7 is passed through. In the case of so-called direct attachment in which the nut 8 is tightened by engaging with the joint portion 10 and the column and the horizontal member are fastened, the floor surface and the bottom surface 14 of the penetrating engagement portion 10 are placed at the beginning of placement. Since there is a gap d (FIG. 2) due to the above-described inclination, so-called additional tightening can be performed until the gap is eliminated. For this reason, tight binding can be ensured.
Note that the direct attachment has a feature that it is easy to perform the mounting operation because the vertical position is stable when the attracting hardware 5 is fixed to the column 4.
As described above, the cross-sectional form of the penetrating engagement portion is a circle, an ellipse, a U-shape, etc., but the dimension in the protruding direction (front and rear) is increased with respect to the left and right dimension (width), and the position of the pulling bolt is shifted. Make it easier to handle.
[0009]
Further, the inner sides of the left and right fixing plate portions facing each other may be folded forward to form reinforcing ribs. In this case, the bridging plate portion is often bent into a substantially U shape to form a through engagement portion. The reinforcing rib may extend over the entire length of the fixed plate portion or may be formed on a part of the fixed plate portion in the vertical direction.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6 show a first embodiment. The attracting metal 5 (FIG. 1) integrally includes a left and right fixed plate portion 9 and a through engagement portion 10 at a lower portion thereof. Also, reinforcing ribs 12 connected to the penetrating engagement portion 10 are formed by folding the sides of the left and right fixing plate portions 9 facing each other on the inside in the protruding direction (front) of the penetrating engagement portion 10. .
The fixing plate portion 9 is basically a rectangle that is long in the vertical direction, and is positioned in parallel with a gap, and has a screw screw hole (fixing tool hole) 13 (FIG. 4). The penetrating engagement portion 10 protrudes forward of the fixed plate portion 9 and has a substantially U-shaped cross section (FIG. 5). In this embodiment, the bottom surface 14 of the penetrating engagement portion 10 is inclined upward by about 10 mm from the fixed plate portion 9 side to the front (FIG. 2).
The reinforcing rib 12 is formed in an inclined shape whose width (projection direction) increases from the upper end side toward the penetrating engagement portion 10, and the lower portion is integrally connected to the side wall of the penetrating engagement portion 10.
[0011]
This drawing metal 5 is a flat plate 16 having a left and right fixed plate 9 and a bridge plate 15 connected between the left and right fixed plates 9 formed by punching a steel plate having a thickness of 4.5 mm. (FIG. 3) is used as a raw material, and a portion corresponding to the bridge plate portion 15 and the reinforcing rib 12 is formed by bending the fixing plate portion 9. As a result, the penetrating engagement portion 10 is formed, and the left and right fixing plate portions 9 are aligned and close to a surface that contacts one side surface of the column 4, and the longitudinal direction thereof is parallel to the penetrating direction of the penetrating engagement portion 10. Be placed. The plate 16 can be molded by a single press. The fixed plate portion 9 has a width of 20 mm, a length of 160 mm, and a dimension up to the protruding tip of the penetrating engagement portion 10 of 80 mm.
[0012]
The attracting metal 5 has the through-engaging portion 10 facing downward, the fixing plate portion 9 is applied to the front surface of the column 4, and the tip of the attracting bolt 7 is inserted through the through-engaging portion 10. The lag screw 17 is driven into and fixed to the column 4. Although not shown, in the case of direct attachment, the bottom portion 14 of the through-engaging portion 10 of the attracting metal 5 is fixed in a state of being placed on the floor board.
In this embodiment, there are eight lag screws 17. Since the fixing means for fixing the attracting metal object 5 to the pillar 4 is dispersed in a relatively wide range, there is little fear of causing the pillar 4 to crack. Further, when the reinforcing rib 12 is present, the reinforcing plate 12 is not bent even if a strong pulling force acts on the fixed plate portion 9.
Although the drawing bolt 7 is not shown, the lower part is already fixed to the cloth foundation 1 and the upper part is passed through the base 2.
Next, a nut 8 is screwed onto the tip of the pulling bolt 7, and the pulling bolt 7 is engaged with the penetrating engagement portion and tightened.
[0013]
FIGS. 7 to 9 show the second to fourth embodiments. In the second embodiment (FIG. 7), the through-engaging portion 10 having a U-shaped cross section is located in the middle in the vertical direction of the fixed plate portion 9. It is a positioned structure.
In the third embodiment (FIG. 8), the vertical dimension of the fixed plate portion 9 is small, and conversely the width dimension is large. Since the fixed plate portion 9 is further shorter, it is further less likely to become an obstacle when associating other members with the column 4. The reinforcing rib 12 is not formed. Further, since the widths of the left and right fixing plate portions 9 are widened to the inner sides facing each other, a fixing tool can be arranged along the center of the pillar 4 to face the pulling force, and the deformation of the pulling hardware 5 It is easy to prevent and there is little damage to the pillar.
In the fourth embodiment (FIG. 9), the through-engaging portion 10 has an oval shape. The left and right fixing plate portions 9 and the reinforcing ribs 12 are located close to each other. The width dimension is reduced.
Other configurations in these embodiments are the same as those in the first embodiment.
[0014]
【The invention's effect】
It retains the function as an attracting metal, has a simple structure and is easy to manufacture.
Since the fixed plate is distributed to the left and right, the overall length is short and easy to handle. In addition, there is little hindrance to post-construction work.
Since the penetrating engagement portion is formed long in the front-rear direction, it is possible to easily cope with the displacement of the drawing bolt and to obtain a sufficient pulling strength.
[Brief description of the drawings]
FIG. 1 is a perspective view (first embodiment).
[Fig. 2] Side view [Fig. 3] Front view shown in an exploded view [Fig. 4] Front view [Fig. 5] Plan view [Fig. 6] Perspective view shown in an attached state [Fig. 7] Perspective view (second embodiment) )
FIG. 8 is a perspective view (third embodiment).
FIG. 9 is a perspective view (fourth embodiment).
FIG. 10 is a perspective view (conventional example 1).
FIG. 11 is a perspective view (conventional example 2).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cloth foundation 2 Base 3 Anchor bolt 4 Pillar 5 Pulling metal 6 Mounting bolt 7 Pulling bolt 8 Nut 9 Fixing plate part 10 Penetration engaging part 11 Side wall 12 Reinforcement rib 13 Fixing hole 14 Bottom face 15 Bridged plate part 16 Plate material 17 lag screw

Claims (1)

Using a single plate material consisting of a left and right fixed plate part and a bridge plate part connected between them, the bridge plate part is bent in a substantially U shape in the out-of-plane direction of the fixed plate part, and a through bolt is inserted The left and right fixing plate parts are aligned with and close to the surface that contacts one side surface of the column, and are arranged in parallel with the penetrating direction of the engaging part that penetrates the longitudinal direction of the column. A plurality of fixing holes are provided in the plate portion, and opposite sides thereof are folded up in the projecting direction of the through-engagement portion to form reinforcing ribs connected to the through-engagement portion. Attracted hardware.

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