JP2002294869A - Pulling hardware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a puller easy to manufacture, being strong, causing no damage of wood, and causing no hindrance to installation of a brace. SOLUTION: This puller has a backboard part 8, and a through engaging part 9 for engaging by penetaring a drawing bolt 7a. The backboard part 8 has a rising part 11 for bending both side parts to one surface side. The through engaging part 9 is fixed to the rising part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hardware that is often used in wooden framed houses.

[0002]

2. Description of the Related Art A structure in which one end of a long member is abutted against the other end of the long member is often used in a wooden framed house. In a wooden framed house, in addition to the connection between the foundation and the base, the connection between each member such as the connection between the base and the column, the connection between the column and the beam or the bracing is important, and many joints are used. Have been. Of these, the bond between the base and the pillar is shown in Fig. 1.
Attraction hardware 5 as shown in FIGS. 2 and 13 has been used.
Reference numeral 1 is a cloth foundation, reference numeral 2 is a base, reference numeral 3 is an anchor bolt, and reference numeral 4 is a pillar.

FIG. 12 shows a structure of a corner portion of a wooden framed house. Vertical and horizontal bases 2a and 2b are fixed to the cloth base 1 with anchor bolts 3 whose lower portions are fixed to the cloth base 1 in advance, and columns 4 (through columns) are erected at corners where the bases 2a and 2b are abutted. is there. Attracting hardware 5 in front of through pillar 4
Is fixed with mounting bolts 6, and this is
The lower part is fixed to the base 2a, and the bases 2a and 2b are connected to each other by a pulling bolt 7a and a nut 7b. Pull hardware 5
Is made of a sturdy and thick steel plate, and the back plate portion 8 and the pulling bolt 7 penetrate therethrough.
have. The upper part of the pulling bolt 7a protruding from the bases 2a, 2b is passed through the through-engaging portion 9 of the pulling hardware 5, and a nut 7b is screwed onto the upper end thereof to engage with the upper end surface of the through-engaging portion. I have.

Therefore, when the nut 7b is tightened, the column 4
Is pulled toward the bases 2a and 2b, and a force of 2 to 3 t (about
000-3000 × 9.8N). But,
This conventional pulling hardware 5 has a penetrating engagement portion 9 provided at the lower end of the long back plate portion 8 and the back plate portion 8 is a simple flat plate material. When a strong force is applied to the portion 9, the pulling hardware 5 is deformed so that the lower portion is pulled out to the outside, and finally, the back plate portion 8 is broken at the location of the mounting bolt 6 near the through engagement portion.
In addition, in the case of soft cedar wood or the like, the lower end is damaged by being sunk into the wood.

The structure in which the penetration engaging portion 9 projects from the back plate portion 8 is necessary for turning a nut 7b for tightening with a tool. On the other hand, when it is necessary to arrange a brace at the corner of the column 4 and the base 3, avoid the bracing and insert the brace 9
Is arranged at a higher position, the fixing position by the mounting bolt 6 becomes farther away from the lower end of the column 4 and becomes higher, and the tightening state becomes unstable compared to when the fixing position is low. That is, it is desired that the amount of protrusion of the penetration engaging portion 9 be as small as possible. In addition, the conventional pulling hardware 5 requires time and labor to form the through-engaging portion 9 and is disadvantageous in cost.

FIG. 13 shows another example of the conventional attracting hardware 5. As shown in FIG. The pulling hardware 5 has a so-called box shape and is structurally strong. However, since the pulling hardware 5 has the side walls 10 on both sides, it is difficult to perform a tightening operation in which the nut 7b is screwed into the pulling bolt 7a. is there. In addition, there is a problem that it is slightly larger and heavier, and that it cannot be used in a place where the side wall 10 protrudes and a brace is attached.

[0007] The pulling hardware 5 is always used in combination with the pulling bolt 7a, but the column 4 and the bases 2a and 2b are used.
Not only in this case, there are also cases where the upper and lower floor pillars sandwiched by beams are fastened and the beams on both sides are horizontally fastened across the pillars. In this sense, the terms “upper”, “lower”, “post” and “base” with respect to the drawn hardware 5 are for convenience. In order to determine the direction of the explanation,
Paying attention to the through-engaging portion 9, the side on which the pulling bolt 7a is engaged is referred to as a front end side, the opposite side is referred to as a base end side, and directions perpendicular to this are referred to as both sides (left and right). The beams and the base are generally horizontal members.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pulling hardware which is easy to manufacture, is robust, does not damage wood, and does not hinder the installation of braces. I do.

[0009]

A structure having a back plate portion and a penetrating engagement portion of a pulling bolt is provided. The back plate has a structure in which both sides are bent toward one side to form a rising portion, and a rising portion is provided on both sides. Then, the penetration engaging portion is fixed to the rising portion by welding or the like.

Most of the materials are thick steel plates and stainless steel plates. Since the back plate has the rising portions on both sides, the penetration engaging portion can be easily fixed, and the cost of the product can be reduced. In addition, since the welding operation is stabilized and the welding line can be made sufficiently long, the fixed state between the back plate portion and the through engagement portion is strong. Further, by having the rising portion, resistance to a force in a direction in which the back plate portion is bent is high, and bending or breakage does not occur.

The through-engaging portion may be used by cutting a tube material into a short length, but is usually formed by pressing a steel plate into a U-shaped cross section. When it has a U-shaped cross section, it is easy to take dimensions in the front-rear direction with respect to the width in the left-right direction. If there is a dimension in the front-rear direction, the displacement of the pulling bolt is absorbed, and the pulling bolt can be easily attached to a surface such as a pillar. However, even if the tube is cut short, the same effect can be obtained in this respect if a tube having a large diameter is used.

[0012] The end face on the base end side of the penetration engaging portion may be an inclined surface. This aims at minimizing the range in which the penetration engaging portion interferes with the angle of the bracing. That is, the base end side of the penetrating engagement portion is cut by an inclined surface which forms an acute angle with the surface of the back plate portion and intersects at the base end side of the back plate portion. As a result, the side of the bracing can be made closer to the pulling hardware than before, without moving the position of the pulling hardware up and down, and the thickness of the bracing can be maintained while maintaining the stability of the binding by the pulling hardware. The wall magnification can be increased by increasing the size.

The back plate is fixed to the wood by screwing or nailing, or is fixed to the wood by bolts and nuts penetrating the wood. A so-called core holding material having a wooden core inside the wood is cracked or easily broken, so that a number of nails are more suitable than fixing with a bolt penetrating the wood. The rising portion provided in the back plate portion may be formed on the entire both sides of the back plate portion, or may be a part of each of the both sides. In some cases, a structure in which a part of the back plate is raised by pressing from both sides and turned up is the simplest, and sufficient strength can be obtained.

When the draw bolt is tightened, the base end side of the back plate portion acts in the direction of pressing the wood when tightening the drawing bolt. Therefore, this portion is formed to be wide and the pressing load per unit area is reduced. May be. Thereby, even in the case of a soft material such as a cedar material, it is possible to prevent a situation in which the attracted metal sinks.

[0015]

1 to 4 show a first embodiment. The pull hardware 5 has a back plate portion 8 and a through engagement portion 9. The back plate 8 has a thickness of 4.5 mm, a width of 56 mm, and a length of 21.
A 0 mm steel plate is used as the basic shape 10, and about 1/3 from the base end is pressed from both sides and folded up to one surface side of the back plate portion 8 to form a rising portion 11. The formed rising portions 11 have a length of about 60 mm and a height of about 15 mm, and the interval between the rising portions 11 on both sides is 26 mm. Has a curved surface 12 extending from the side edge of the basic shape 10 to the upper side of the rising portion 11. The length of the curved surface 12 in a plan view is about 22.5 mm. A plurality of nail holes 13 are formed on the distal end side of the back plate portion 8, and a portion having the same width as the basic shape 10 is left on the proximal end side.

The penetration engaging portion 9 is formed by pressing a steel plate having a thickness of 4.5 mm into a U-shaped section, and has a height of 50.5.
mm, outer width 26 mm, and length 60 mm. The inner width of the U-shaped part is 17 mm. Standing part 11 of back plate part 8
The penetration engaging portion 9 is fitted in the U-shape in reverse until the side on the opening side reaches the back plate portion 8, and then these boundary portions are welded. FIG. 4 shows an example of use of the pull-in hardware 5, where the upper and lower floor columns 4a and 4b are tightly connected. Reference numeral 14 denotes a beam, and reference numeral 15 denotes a body difference, which are tightened in a horizontal direction using a blade bolt 16.

Attachment hardware 5a is attached to the upper tube post 4a, and attraction metal attachment 5b is attached to the lower tube post 5b. Is tightened. The pulling bolts 7a and 7b are made of the same product and are arranged facing each other. These are fixed to the pipe columns 4a and 4b by nailing. Since the pulling hardware 5 is fixed to the pillar 4 by nailing, even if the pillar 4 is a so-called core material, the pillar 4 is broken, or the fixture of the back plate 8 is fitted to the crack, so that it is effective. Can be avoided. Further, since the wide portion is left on the base end side of the back plate portion 8, even if the nut 7b is strongly tightened, this portion hardly bites into the wood.

Further, since the penetration engaging portion 9 is U-shaped, which is long in the front-rear direction, the position of the pulling bolt 7a can be adjusted back and forth. Thereby, it is possible to prevent the pulling bolt 7a from interfering with the blade bolt 16 connecting the beam 14 and the spar 15. The upper and lower pipe columns 4a, 4b
And the beam 14 and the spar 15 can be tightened using the pulling hardware 5 and the pulling bolt 7a. In this type, a pulling force of about 2t can be obtained. It is a matter of design to change the size of the back plate portion 8 and to fix the back plate portion 8 with bolts by using the nail holes 13 as bolt holes.

FIGS. 5 to 7 show a second embodiment. The pull hardware 5 has a back plate portion 8 and a through engagement portion 9. The basic shape 10 of the back plate portion 8 is the same as that of the first embodiment, but the rising portions 11 are formed on all sides. The penetration engaging portion 9 is the same as that of the first embodiment, but the attachment position to the back plate portion 8 is the base end of the back plate portion 8,
The back plate 8 does not protrude toward the base end. Further, a bolt insertion hole 17 is formed at the tip end side of the back plate portion 8. FIG.
It is a corner of a wooden framed house, and the through column 4 is tightly connected to the cloth foundation 1 and the bases 2a and 2b by the pulling hardware 5 and the pulling bolts 7a and nuts 7b according to this embodiment. The pulling hardware 5 is fixed to the column 4 by two mounting bolts 11 and nuts screwed thereto (FIG. 6).

The attracting hardware 5 according to the second embodiment has the simplest form and the manufacturing cost can be reduced. On the other hand, since the rising portions 11 are provided on all sides, the resistance to the force for bending the back plate portion 8 is high and the device is sturdy. Since the penetration engaging portion 9 is located at the base end of the back plate portion 8, the pull-in hardware 5 can be arranged close to the surfaces of the bases 2a and 2b (horizontal members), and a more stable binding state can be obtained. Can be.

8 to 10 show a third embodiment. The second embodiment is characterized in that the base end side of the penetration engaging portion 9 is cut by an inclined surface 18. The inclined surface 18 is a surface which forms an acute angle α with the surface of the back plate 8 and intersects at the base end side of the back plate 8. The acute angle α is the strut 19 (FIG. 9)
Is substantially equal to or larger than the angle formed by the base 2a.

The use of the pulling hardware 5 according to the third embodiment is almost the same as that of the second embodiment, except that the base end side of the through-engaging portion 9 is adjusted to the inclination of the brace 19. Since it is a surface, the penetrating engagement portion 9 can be closer to the strut 19 in the vertical direction, and at the same time, the strut 19
Can be brought close to the pulling bolt 7a (FIG. 10). This makes it possible to further stabilize the tightening state of the pull-in hardware 5, and to increase the thickness dimension of the bracing 19 as needed to increase the wall magnification, which is the standard for the strength of the wall.

FIG. 11 shows a fourth embodiment. The pulling hardware 5 includes a back plate portion 8 and a through engagement portion 9, and the through engagement portion 9 is fitted between the rising portions 11 on the base end side of the back plate portion 8 and fixed by welding. . In contrast to the second and third embodiments, in the fourth embodiment, the penetrating engagement portion 9 is not located at the base end of the back plate portion 8 but is slightly at the distal end side,
It is characterized in that the remaining portion of the back plate portion 8 exists on the base end side, and the rising portion 11 is not formed in that portion, but is formed in the wide portion 20.

The state of use of the pull-in hardware 5 according to the fourth embodiment is the same as that of the other embodiments, but three fastening bolts 6 are used so that a tightening force of 3t can be obtained. Along with this, the force at which the base end of the back plate portion 8 presses the wood also increases, but since the wide portion 20 is provided, the pressure is dispersed, and the base end side of the pulling hardware 5 is prevented from biting into the wood. Can be. It is particularly effective when using soft wood such as cedar. Although the embodiments have been described above, the dimensions of each part and the number of the mounting bolts 6 depend on the required tightening force.

[0025]

According to the present invention, since the back plate is provided with the rising portion and the through-engaging portion is fixed to the rising portion, the fixing work such as welding can be easily performed, and the cost of the product can be reduced. In addition, the welding line between the back plate portion and the through-engaging portion is long, and in combination with the simple structure, a strong pulling hardware can be obtained. By forming the back plate portion on the base end side wide, it is possible to prevent the drawn metal from biting into the wood due to the binding. By making the base end side of the through-engaging portion an inclined surface that matches the inclination of the brace, the through-engaging portion and the brace can be arranged close to each other, thereby stabilizing the binding and improving the wall magnification. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view (first embodiment).

FIG. 2 is a front view

FIG. 3 is a side view

FIG. 4 is a perspective view showing a use state.

FIG. 5 is a perspective view (second embodiment).

FIG. 6 is a front view showing a use state (a part of which is seen through).

FIG. 7 is a perspective view showing a use state.

FIG. 8 is a perspective view (third embodiment).

FIG. 9 is a perspective view showing a use state.

FIG. 10 is a front view showing a use state.

FIG. 11 is a perspective view (fourth embodiment).

FIG. 12 is a perspective view showing a use state (1 of a conventional example).

FIG. 13 is a perspective view showing a use state (2 of a conventional example).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cloth foundation 2a, 2b Base 3 Anchor bolt 4 Column 5 Pulling hardware 6 Mounting bolt 7a Pulling bolt 7b Nut 8 Back plate 9 Penetration engaging part 10 Basic form 11 Rising part 12 Curved surface 13 Nail hole 14 Beam 15 Body Difference 16 Bolt bolt 17 Bolt insertion hole 18 Inclined surface 19 Brace 20 Wide part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA03 AA13 AA18 AA45 AB12 AC23 AG12 BA53 BA55 BB02 BB08 BB09 BB13 BB14 BB22 BB35 BB37 BC09 BD01 BE02 BE08 BF06 BF08 CA02 CA05 CA14 EA12 EA17 EA33

Claims (8)

[Claims] 1. A back plate portion and a through-engagement portion of a pulling bolt, the back plate portion includes a rising portion having both sides bent to one surface side, and the penetration engaging portion is fixed to the rising portion. Attraction hardware characterized by that. 2. The pulling hardware according to claim 1, wherein the through-engaging portion has a U-shaped cross section. 3. A side where the pulling bolt engages with the through-engaging portion is defined as a distal end side, and the opposite side is defined as a proximal end side, and the proximal end side of the through-engaging portion is formed at an acute angle with the surface of the back plate portion. The pulling hardware according to claim 1, wherein the pulling hardware has a structure cut by an inclined surface intersecting at a base end side of the back plate portion. 4. The back plate part is fixed to the wood by screwing or nailing.
Attraction hardware according to any one of the above. 5. The pulling hardware according to claim 1, wherein the back plate is fixed to the wood with bolts and nuts penetrating the wood. 6. The back plate according to claim 1, wherein the rising portion of the back plate has a structure in which a part of the back plate is pressed from both sides to be raised. Attracted hardware. 7. The pulling hardware according to claim 1, wherein the rising portions of the back plate are formed on both sides of the back plate. 8. The pulling hardware according to claim 1, wherein the back plate portion is formed wider on the base end side than the penetrating engagement portion.