JP2009035954A - Bolt bracket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To screw, on a construction side, a pull bolt pulled to one of mutually pulled structures into a bolt bracket installed on the other from the construction side. <P>SOLUTION: This bolt bracket 10 comprises a shaft part 11 and a flanged head part 12 at one end of the shaft part 11. The bolt bracket 10 has a female screw hole 13 extending from the flanged head part 12 to the end of the shaft part 11 at which the flanged head part 12 is not formed. At least the shaft part 11 is inserted into a hole 50a formed in a first structural member 50', and fixed to a structural member 50 through the flanged head part 12 with wood screws 60. The pull bolt 30 to be attached to a second structural member 50' is screwed into the female screw hole 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to the provision of a bolt receiving material that can easily and reliably pull a structural material only on one construction side. For example, various structural materials are newly added at the time of remodeling, or the mutual processing of structural materials is performed. It can effectively respond to cases such as reinforcing the mouth, adding various structural materials during the construction, reinforcing the joint, or joining the column at a position displaced from the anchor bolt. Regarding the provision of bolt receiving hardware.

  New building materials supplements and reinforcement structure materials for building aging, purpose of increasing seismic strength, changes in usability after building construction, expansion / renovation due to change of living space, remodeling etc. In some cases, it is necessary to reinforce the joint of each structural material.

  In such extension and renovation of buildings or seismic reinforcement work, typically, the newly installed additional structural material is used to draw and join the structural material to be expanded or seismically reinforced to the existing structural material. In addition, in order to equip the wing plate bolt to the seismic reinforcing structural member, it is necessary to draw both of them by tightening the nut to the wing plate bolt protruding to the back side of the existing beam.

  In addition, when a new column is added or a new column is retrofitted with seismic reinforcement, such as in an extension or renovation of such a building, the head of the column and the column base are drawn to the structural material facing sideways. In the event of an earthquake, etc., in the event of an earthquake, etc., in order to prevent the column from lifting up from the sideways structural material and the beam on the column, etc. It was necessary to use the anchor bolts for pulling, or to perform pulling on the opposite side of the joint in the structural material to which the column is to be joined.

  From such a point, for example, when the anchor bolt provided on the foundation and the bolt insertion hole in the hole-down hardware provided on the column are not positioned on the same vertical line, the anchor bolt is protruded from the base. As a means for connecting a fixed anchor bolt to a hole-down hardware provided on a pillar, a joint hardware disclosed in Patent Document 1 is disclosed.

In order to solve such an inconvenience, a method for pulling a bolt receiving material and a structural material of Japanese Patent Application No. 2006-26148 has been proposed.
JP 11-350609 A

  However, the joint hardware shown in Patent Document 1 relates to the handling of anchor bolts provided on the foundation and protruding upward through the foundation, and is newly installed on the installed foundation. It was not possible to use as a means for assembling the pillars to be pulled together or as a means for seismic reinforcement of the installed pillars.

  In addition, it is in the head of a newly provided pillar or a pillar to be seismically strengthened, and in order to assemble this head with a beam or the like provided perpendicular to the pillar, it is perpendicular to the pillar. It was necessary to remove and install the floor material, etc., that was stuck above the structural material such as beams.

  In addition, when a horizontally-oriented structural material such as a beam is newly assembled to a laterally-oriented structural material such as a beam in a direction orthogonal to the structural material, or between each structural material provided orthogonally and horizontally In the case of seismic reinforcement construction, it was necessary to remove the various construction materials provided on the opposite side of the existing beam, etc., and the wall materials that had been installed.

  In this conventional method, it is difficult to install and install new pillars and new beams easily and surely in extension and reconstruction, seismic reinforcement construction, etc. There was a problem that the construction cost was expensive because many materials, a lot of construction work, and a lot of construction period were required for the retrofitting and seismic reinforcement work with beams.

  In order to eliminate such inconveniences, the bolt receiving hardware and the structural material drawing method described in Japanese Patent Application No. 2006-26148 are newly installed with new pillars and beams or new seismic resistance at the time of such retrofitting and seismic reinforcement work. During reinforcement, the structural material such as columns and beams can be drawn on the new side of the columns and beams or on the new seismic reinforcement side, opposite to the new side of the columns and beams and the new construction side of the seismic reinforcement. The problem of being requested to demolish or remove the building part on the side is eliminated, and the hardware to be screwed in bolts installed corresponding to various applications is convenient for the material on the construction side Can be installed.

  The drawing method of the bolt receiver and the structural material described in Japanese Patent Application No. 2006-26148 is to install the screw-shaped bolt receiver in a screwed state on the structural member.

In order to solve such a problem, the present invention is a bolt receiver including a shaft portion and a hook-shaped head on one end side of the shaft portion,
The bolt bracket has a female screw hole penetrating from the hook-shaped head to the shaft end where the hook-shaped head is not provided,
At least the shaft portion is inserted into a hole provided in the first structural member, and the female screw is attached to the second structural member with a pulling bolt prepared to be attached to the second structural member with the hook-shaped head with a wood screw. The bolt receiver is characterized in that it can be screwed into the hole.

  The bolt receiver constructed in this way has a simple configuration, can be easily prepared as having initial strength, and without difficulty from the construction side for the structural material to be drawn, It can be easily and reliably installed. Further, by screwing a drawing bolt that is prepared to be attached to a structural material to be drawn with respect to the provided bolt receiving metal, it can be used for, for example, connection between various types of structural materials or drawing joining.

  For example, a pair of structural materials that are orthogonal to each other are drawn together during the installation of new columns and beams, new earthquake-resistant reinforcement, etc. In the case of joining to the state, the bolt receiving hardware is provided on one side of the structural material from the new side such as a column or beam or the seismic reinforcement side, and the attracting metal bolt provided on the other structural material is attached to the bolt receiving hardware. It is possible to easily and reliably pull the structural material by screwing without damaging the existing surrounding wall material or the like.

  Further, in the bolt receiver according to the above configuration, the second structural material is joined in a direction orthogonal to the first structural material, and the drawing is prepared to be attached to the second structural material. In the bolt receiving hardware, the bolt receiving hardware into which the bolt is screwed is provided in the first structural material, and the first structural material joined in the orthogonal direction and the first structural material The two structural materials can be drawn and reinforced as needed.

  Further, in the bolt receiver according to the above-described configuration, in the bolt receiver, the pulling bolt is rotatably provided on a feather metal plate fixed to the second structural member. Is provided with the first structural material and the second structural material in association with each other, as needed, by associating the hung sheet metal and a pulling bolt that is rotatably provided on the hung sheet metal. be able to.

  Further, in the bolt receiving hardware according to the above configuration, the pulling bolt is rotatably provided on a hole down hardware fixed to the second structural material. In this case, the hole-down hardware and the pulling bolt that is rotatably provided in the hole-down hardware are associated with each other and provided in the first structural material and the second structural material, so that both of them can be used as needed. You can draw.

  The bolt receiving metal object according to the present invention can be provided with the bolt receiving metal object from the construction side with respect to the structural material to be drawn, and the drawing bolt prepared to be attached to another structural material with respect to the bolt receiving metal object. It has the advantage that it can be conveniently screwed in. In addition, in the pulling method using the bolt receiving hardware, the structural members that are orthogonal to each other can be pulled on the side of the newly installed or reinforced column or beam, and the new or strengthened column or beam can be installed. Also, there is an advantage that it can be made surely and easily without demolishing the building portion on the side opposite to the reinforcing side.

  Hereinafter, a bolt receiving metal object and a method for drawing a structural material using the bolt receiving metal object according to the best mode for carrying out the present invention will be described.

  1 to 10 show an example of a bolt receiver 10 according to the best mode for carrying out the present invention and an example of drawing a structural member 50 using the bolt receiver 10. Fig. 1 shows a typical bolt bracket 10 for carrying out the present invention, which is shown obliquely from above in Fig. 1 and partially cut away from the front in Fig. 2. 3 and 4 show a typical example of attachment of the bolt receiver 10. In FIG. 3, the hook-shaped head 12 is pressed against the surface of the structural material, and in FIG. 4, The state in which the bowl-shaped head 12 is placed in and attached to the recess 50b formed in the structural member 50 is shown in cross section as viewed from the side. 5 to 7 show a state in which the structural member 50 such as a beam is drawn using the hanger sheet metal 20 and the drawing bolt 30 using the bolt receiving metal 10, and in FIG. In FIG. 6, a part of the cross section is seen from the side, and in FIG. 7, a part of the cross section is seen from above. FIG. 8 shows another example of mounting the bolt receiving metal 10 in a cross-sectional view of the main part, and FIG. 9 and FIG. 10 show the structure material 50 facing sideways using the bolt receiving metal 10. FIG. 9 shows a state in which a pillar, which is a vertically oriented structural material 50, is pulled by a hole-down hardware 40 and a pulling bolt 30. In FIG. 9, the main part is shown obliquely from above, and in FIG. Shown from the side.

A typical bolt receiver 10 according to this illustrated example is a bolt receiver 10 including a shaft portion 11 and a flange-shaped head portion 12 on one end side of the shaft portion 11, and the bolt receiver 10 is the bolt holder 10. A female screw hole 13 that penetrates from the head portion 12 to the end of the shaft portion 11 that is not provided with the bowl-shaped head portion 12 is provided. It is inserted and fixed to the structural member 50 with the hook-shaped head 12 by the wood screw 60, and the drawing bolt 30 prepared for mounting on the second structural member 50 "can be screwed into the female screw hole 13. It is.
For convenience of explanation, one of the pair of structural members 50 and 50 attracted to each other will be described as a first structural member 50 ′, and the other structural member 50 will be described as a second structural member 50 ″.

  The bolt receiver 10 configured in this way has a simple configuration, can be easily prepared as having initial strength, and can be easily applied to the structural material to be applied from the construction side without difficulty. And it can be securely installed. In addition, by screwing the pulling bolt 30 that pulls each structural material into the bolt receiver 10 that is provided, it can be used for, for example, connection between various structural materials, pulling joint, and the like. For example, a pair of structural materials that are orthogonal to each other are drawn together during the installation of new columns and beams, new earthquake-resistant reinforcement, etc. In the case of joining to the state, the bolt receiving hardware 10 is provided on one side of the structural material 50 from the newly installed side such as a column or a beam or the seismic reinforcement side, and the pulling bolt 30 provided on the structural material 50 on the other side is received by the bolt receiver. It is possible to easily and surely draw the structural material by screwing it into the metal object 10 without damaging the existing surrounding wall material.

  More specifically, when renovating, when adding new floors, walls, or beams, or reinforcing beam joints for seismic reinforcement, the outer wall is not damaged, that is, the outer wall is partially demolished and waterproofed. Without any repair or makeup, these new floors and walls can be installed, beams can be added, and beam joints can be reinforced for seismic reinforcement.

  In addition, when attaching the hall down hardware 40 to the capital and column bases, the work straddling the upper and lower floors is avoided, the labor to peel off the floor and ceiling, and the repair without the labor of repairing them. Seismic reinforcement at the legs can be made.

  In addition, at the time of new construction, after construction of the outer wall, etc., it becomes clear that there is a pulling failure, the case is subjected to seismic reinforcement in a manner different from the design specification, or the case where the seismic reinforcement exceeding the design specification is applied, In the case of incorporating a structural material that does not exist, it is possible to easily and smoothly add each of the reinforcing materials and the structural material without damaging the walls and the like that have already been constructed.

  In addition, when it is necessary to provide a pillar at a base position other than the design position, or when there is no anchor bolt at a position convenient for pulling the pillar to be installed, the pillar can be easily placed on the base. And it can install reliably in the drawing state using the hole down metal fitting 40. FIG.

  The bolt receiver 10 is a bolt receiver 10 having a shaft portion 11 and a hook-shaped head portion 12 on one end side of the shaft portion 11, and is a first of the pair of structural members 50, 50 that are attracted to each other. When the structural members 50, 50 are pulled together by screwing the pulling bolt 30, which is attached to the second structural member 50 ″, into the female screw hole 13 while being fixed to the structural member 50 ′ with the wood screw 60. Any material may be used as long as it has strength capable of being pulled, and any form may be used as long as the function can be achieved.

  Further, in the bolt bracket 10 according to the above configuration, the second structural member 50 ″ is joined in a direction orthogonal to the first structural member 50 ′. In the bolt receiving object 10 in which the bolt receiving object 10 into which the pulling bolt 30 prepared for mounting is screwed is provided on the first structural member 50 ', the bolt receiving object 10 is joined in an orthogonal direction. The first structural member 50 ′ and the second structural member 50 ″ can be pulled and reinforced as necessary.

  Further, in the bolt receiver 10 according to the above-described configuration, the pulling bolt 30 is provided in the bolt receiver 10 that is rotatably provided on the hanger metal plate 20 fixed to the second structural member 50 ″. Therefore, it is necessary at any time by providing the first structural member 50 ′ and the second structural member 50 ″ with the hung sheet metal 20 and the pulling bolt 30 rotatably provided on the hung sheet metal 20 in association with each other. Depending on the situation, both can be drawn.

  Further, in the bolt receiver 10 according to the above configuration, the pulling bolt 30 is rotatably provided on a hole-down bracket 40 fixed to the second structural member 50 ″. In that case, by providing the first structural member 50 ′ and the second structural member 50 ″ with the hole down hardware 40 and the pulling bolt 30 rotatably provided in the hole down hardware 40 in association with each other, At any time, they can be pulled together as needed.

  Next, the typical bolt bracket 10 shown in FIGS. 1 and 2 will be described in detail.

  The bolt receiver 10 according to the illustrated example includes a shaft portion 11 and a hook-shaped head portion 12 on one end side of the shaft portion 11, and the hook-shaped head portion 12 is provided from the hook-shaped head portion 12. A female screw hole 13 penetrating at the end of the shaft portion 11 is provided, and at least the shaft portion 11 is inserted into a hole 50 a provided in the first structural member 50 ′, and the structural member 50 is formed in the bowl-shaped head portion 12 with a wood screw 60. The drawing bolt 30 prepared for mounting on the second structural member 50 ″ can be screwed into the female screw hole 13.

  If the bolt-shaped metal fitting 10 according to the illustrated example is configured so that the bowl-shaped head portion 12 and the shaft portion 11 are integrated with each other, even if the rod-shaped head portion 12 and the shaft portion 11 are formed from a bar or the like, It may be configured integrally by the means described above.

  The hook-shaped head 12 applies a predetermined pulling load to the pulling bolt 30 screwed into the female screw hole 13 in a state where the hook-shaped head 12 is fixed to the first structural member 50 ′ with the wood screw 60. The shaft portion 11 is screwed into the female screw hole 13 of the bolt receiver 10 fixed to the first structural member 50 ′. The attracting bolt 30 is provided with a strength and a structure that does not deform when the predetermined pulling load, that is, a predetermined pulling load is applied, or the pulling bolt 30 does not come out.

  In this illustrated example, a ring-shaped bowl-shaped head 12 having a predetermined thickness is provided on one end side of the shaft portion 11 so as to project outward, that is, outward. A female screw hole 13 is provided so as to penetrate from the head portion 12 to the end of the shaft portion 11 where the saddle-shaped head portion 12 is not provided, and the shaft portion 11 has a cylindrical shape having an inner screw through the female screw hole 13. The bowl-shaped head 12 is a ring-shaped disk.

  A plurality of wood screw holes 14 are provided in a manner penetrating in the thickness direction of the bowl-shaped head 12 in the circumferential direction of the bowl-shaped head 12 forming the ring-shaped disk.

  The wood screw holes 14 provided at predetermined intervals so as to go around the saddle-shaped head 12 along the outer periphery of the saddle-shaped head 12 are arranged so that the bolt receiving object 10 is used when the structural members 50 are pulled by the pulling bolts 30. In order not to fall out from the first structural member 50 ′, the insertion hole diameter and the number of the wood screws 60 that are convenient for fastening with the wood screws 60 are provided.

  In this illustrated example, a small-diameter hole portion 14b through which the shaft portion of the wood screw 60 is inserted is communicated with the small-diameter hole portion 14b and a large-diameter hole portion 14a in which the head of the wood screw 60 is accommodated. A plurality of wood screw holes 14 with a stool provided on the upper side are provided so as to penetrate the top and bottom of the bowl-shaped head 12 so as to form an annular shape with a predetermined interval.

  The bolt receiver 10 is made of, for example, a steel having a length of 25 mm and a hook-shaped head 12 having a diameter of 45 mm and a thickness of 5 mm integrally formed on one end side of the shaft portion 11 having a diameter of 15 mm. The female head 13 is provided with a female screw hole 13 through which the M12 bolt is screwed back and forth from the center of the bowl-shaped head 12 toward the end of the shaft 11 where the bowl-shaped head 12 is not provided. Has a configuration in which six wood screw holes 14 having a seating step portion of the head of wood screw 60 having a head diameter of about 8.4 mm are provided at equal intervals. More specifically, a diameter of 15 mm is obtained by threading a female screw hole 13 into which an M12 bolt is screwed back and forth in an axial direction in a hole having a diameter of 15 mm provided in the center of a steel round washer having a diameter of 45 mm and a thickness of 5 mm. A steel screw with a stool that can be hooked on the stepped portion between the small-diameter hole 14b and the large-diameter hole 14a on the bowl-shaped head 12 outside the welded portion of the round steel. An insertion hole 14 is formed.

  The bolt receiving hardware 10 prepared in this way is provided in the first structural member 50 'as shown in FIGS. 3, 4 and 8, for example, and the drawing bolt 30 provided in the second structural member 50' '. Is used to draw the structural members 50 and 50.

  For example, when the bolt receiver 10 is used in a place where it is not obstructed by a joint hardware 80 such as a beam receiver as shown in FIGS. 5 to 7, only the shaft portion 11 is used as a structural material as shown in FIG. 3. It can be used by being inserted into 50 and exposing the bowl-shaped head 12 on the surface of the structural member 50. Further, as shown in FIG. 5 to FIG. 7, when used at a joining position by a joining hardware 80 such as a beam receiving material, the saddle-shaped head 12 is installed and used so as to be housed in the structural material 50.

  The bolt receiver 10 shown in FIG. 3 has a shaft portion 11 in a hole 50a provided in the first structural member 50 ′ so that the hook-shaped head portion 12 is in close contact with the surface of the first structural member 50 ′. The wood screws 60 are screwed in from the wood screw holes 14 so that the lower surface of the bowl-shaped head 12 is pressed against the surface of the structural material 50, and is fastened to the first structural material 50 ′.

  In this way, the bolt bracket 10 fixed to the first structural member 50 ′ is connected to the first structural member 50 ′ and the first structural member 50 ′ by screwing of the pulling bolt 30 prepared to be attached to the second structural member 50 ″. At the time of drawing with the second structural member 50 ″, the first structural member 50 ′ is fixed so as not to fall off from the first structural member 50 ′. The wood screw 60 having a length of approximately 75 mm is fastened to the first structural member 50 ′ with its hook-shaped head 12.

  Moreover, the bolt receiver 10 shown in FIG. 4 shows a state in which the hook-shaped head portion 12 of the bolt receiver 10 is fixed to the first structural member 50 ′ so as not to be exposed from the surface of the structural member 50. When the bolt receiver 10 is used together with, for example, a joint metal 80 such as a beam receiver or a reinforcing plate 15 such as a square washer, the bowl-shaped head 12 of the bolt receiver 10 is used. However, it is intended not to obstruct the attachment of these joint hardware 80 and the reinforcing plate 15, except that the saddle-like head 12 is housed in the recess 50b carved on the structural member 50. It is fixed to the structural member 50 in the same manner as the attachment of the bolt receiver 10 shown in FIG.

  The bolt receiver 10 is provided in the first structural member 50 'corresponding to the mounting position of the pulling bolt 30 that is screwed into the bolt receiver 10 and pulls the structural members 50 and 50 together. Then, using a drill having a diameter of the shaft 11 of the bolt receiver 10 or a slightly larger diameter than this, a preceding hole 50a having a depth of about 50 mm is drilled, and the bolt receiver 10 is inserted into the preceding hole 50a. The shaft portion 11 is inserted, and the wood screw 60 is screwed into the first structural member 50 ′ from each wood screw hole 14 with a seat provided in the bowl-shaped head portion 12, and is fastened.

  Further, when it is necessary to install the reinforcing plate 15 on the bolt receiving metal 10 or to provide the joining metal 80 or the like, the shaft portion 11 of the bolt receiving metal 10 is in relation to the first structural member 50 ′. Using a drill with a diameter that is slightly larger than this, a leading hole 50a of approximately 60 mm is provided, and further, a saddle-shaped head is carved to a depth of approximately 7 mm around the leading hole 50a. In a state in which the concave portion 50b in which the portion 12 is accommodated is provided and the shaft portion 11 of the bolt receiving metal piece 10 is inserted into the preceding hole 50a, the hook-shaped head portion 12 of the bolt receiving metal piece 10 is accommodated in the concave portion 50b. The wood screw 60 is screwed into the first structural member 50 ′ from each wood screw hole 14 with a stool provided in the saddle-shaped head portion 12 and fastened.

  An example in which a typical usage mode of the bolt receiving hardware 10 prepared for fastening the first structural member 50 ′ is used as an attracting means for the attracting bolt 30 provided in the feather metal plate 20 and the hole-down hardware 40 is illustrated. Will be described.

  5 to 7 show the structural members 50 using the bolt brackets 10, and in the illustrated example, the structural members 50 in the horizontal direction that are substantially perpendicular to each other, for example, the beam members are attracted to each other. ing.

  First, one of the structural members 50 to be joined and drawn, that is, the first structural member 50 ′, the corresponding structural member 50, that is, the drawing bolt 30 that is prepared to be attached to the second structural member 50 ″. The bolt receiver 10 is fixedly prepared by the method shown in FIG. 4 at a position where it can be screwed back and forth.

  Next, the first structural member 50 ′ provided with the bolt receiver 10 is used as a second structural member 50 ″ by a usual method, for example, a joint bracket such as a beam receiver fixed by the wood screw 61. Join.

  In the case of using a joint metal 80 such as a beam receiver, a hole 81 communicating with the female screw hole 13 of the bolt receiver 10 is provided in the joint metal 80. The hole 81 provided in the joint metal 80 is desirably a slightly larger hole or a slightly longer hole from the viewpoint of increasing the degree of freedom of insertion of the pulling bolt 30 screwed into the female screw hole 13.

  Subsequently, the drawing bolt 30 is screwed into the female screw hole 13 of the bolt receiver 10 so that the first structural material 50 ′ and the second structural material 50 ″ can be drawn together. The attracting bolt 30 is prepared for attachment. The preparation for attaching the pulling bolt 30 and the mounting of the bolt receiving object 10 may be provided in advance with respect to the structural material 50 because of the mutual pulling of the structural material 50.

  In the illustrated example, a steel plate-made metal sheet made up of a mounting plate portion 21 and a bolt receiving portion 22 continuously provided in series is prepared, and inserted into a bolt insertion hole 23 of the bolt receiving portion 22. In a state where the attachment plate portion 21 is attached to the side surface of the second structural member 50 ″ so that the pulling bolt 30 can be inserted into the female screw hole 13, the plurality of holes provided in the attachment plate portion 21 are used for wood screws. 62 is screwed into the second structural member 50 "and fixed.

  In addition, for example, the metal plate 20 is bent so that both side portions on one side of the steel plate face each other, and the bent upper side is curved in a semi-arc shape, and each curved end is welded, thereby attaching the mounting plate portion. 21 and the bolt receiving part 22 provided with the bolt insertion hole 23 of the long and narrow pulling bolt 30 can be used.

  In addition, when the structural members 50 and 50 are pulled together, the hung metal plate 20 is screwed into the female screw hole 13 of the bolt receiving metal 10 so that the pulling bolt 30 that is rotatably inserted into the hung metal plate 20 is prepared. The second structural member 50 "is securely attached to the second structural member 50" with the wood screws 62 to 62 so as not to fall off the second structural member 50 ".

  The pulling bolt 30 inserted through the bolt insertion hole 23 of the hung sheet metal 20 has a strength that prevents the pulling bolt 30 from being damaged when the structural members 50 and 50 are pulled together by the pulling bolt 30. Things are used.

  As the pulling bolt 30, for example, an M12 bolt including a head portion 31 and a shaft portion 32 can be used.

  Thus, the mutual pulling of the structural members 50, 50 using the bolt receiver 10 can be processed only at the drawing joint portion of each of the structural members 50, 50 to be pulled. The structural members 50 and 50 can be attracted to each other without damaging, for example, the wall material or the like of the portions other than the mounting portions of the bolt receiving metal 10 and the feather metal plate 20 provided next to each other.

  The mutual pulling of the structural members 50, 50 is performed by pulling the first structural member 50 ′ and the second structural member 50 ″ by using a plurality of sets of the bolt receiving metal 10, the battledore metal 20 and the pulling bolt 30. In addition, in this illustrated example, the sheet metal 20 and the pulling bolt 30 are arranged on both sides of the second structural member 50 ″, and two sets of bolts are provided on the first structural member 50 ′ so as to correspond thereto. The receiving object 10 may be provided to draw the structural members 50 and 50 together.

  Next, the structure of joining and pulling the structural members 50 and 50 shown in FIGS. 8 to 10 will be described.

  This illustrated example shows a mode in which the vertically oriented structural material 50 is attracted to the laterally oriented structural material 50. As a typical example, a foundation as the structural material 50 fixed to the foundation 70 with anchor bolts 71 is provided. The first structural member 50 ′ is a pillar as the structural member 50 joined in an upright state on the base as the first structural member 50 ′. The hole-down hardware 40 and the pull-down bolt 30 that is rotatably inserted into the hole-down hardware 40 are used to draw.

  The bolt receiving metal 10 provided in the first structural material forming the foundation is the bolt receiving metal 10 shown in FIGS. 1 and 2, and forms a foundation at a side position of the structural material 50 forming the pillar. The structural member 50 is fixed to the upper surface side with a wood screw 60 in the state shown in FIG.

  That is, the bolt receiver 10 is fastened to the first structural member 50 ′ with the wood screw 60 in a state where the bowl-shaped head 12 of the bolt receiver 10 is housed in the recess 50b. The pull-out strength of the bolt receiving object 10 is reinforced by the reinforcing plate 15 covering the top 50b.

  The reinforcing plate 15 has a 70 mm square shape with a thickness of 5 mm, has an insertion hole 15 a for the pulling bolt 30 at the center, and has an insertion hole for the wood screw 63 at the four corners. The structural member 50 is firmly fixed to the structural member 50 with a wood screw 63 so as to cover the upper portion of the worn bolt receiving member 10 so as to effectively prevent the bolt receiving member 10 from being pulled out of the structural member. It is.

  Corresponding to the bolt receiving metal 10, the hole down hardware 40 provided on the pillar which is the second structural material 50 ″ includes a plate-like mounting plate portion 41 along the surface of the second structural material 50 ″, and this A bolt support plate portion 42 that is bent at a right angle and protrudes forward from the lower end of the mounting plate portion 41, and is suspended downward from both sides of the bolt support plate portion 42, and the rear edge of the second support member 50 ″ And a pair of reinforcing plate portions 43, 43 facing each other, and an insertion hole 44 for the pulling bolt 30 of the bolt support plate portion 42 is provided.

  The hole-down hardware 40 has a second vertical orientation with the mounting plate 41 upward so that the pulling bolt 30 inserted through the insertion hole 44 can be screwed into the female screw hole 13 of the bolt receiving metal 10. The mounting plate portion 41 is attached to the side surface of the structural member 50 ″, and the nut 47 is tightened through the washer 46 to the bolt 45 penetrating the second structural member 50 ″ from the hole of the mounting plate portion 741. The structural member 50 is fixed.

  In the hole-down hardware 40, the pulling bolt 30 that is rotatably inserted into the insertion hole 44 of the mounting plate 41 is screwed into the female screw hole 13 of the bolt receiving metal 10 to draw the structural members 50, 50 together. At this time, it is prepared as having strength that is not damaged.

  In this way, the drawing bolt 30 inserted through the insertion hole 44 of the bolt support plate portion 42 of the hole-down hardware 40 is screwed into the female screw hole 13 of the bolt receiving metal 10 provided in each structural material 50, 50, and each structure The materials 50 and 50 are drawn.

  The pulling bolt 30 used here is not damaged by the pulling of the structural members 50 and 50 like the pulling bolts used in FIGS. For example, an M12 bolt or the like can be used.

  In this manner, the bolt receiving metal 10 and the hole down metal 40 used for pulling the structural members 50 and 50 are the same as the pulling of the structural members 50 and 50 by the battledore metal 20 and the bolt receiving metal 10. The structural members 50 and 50 can be drawn without affecting the wall or the like other than the assembly operation portion of the hardware 10 and the hole-down hardware 40.

  In addition, the first structural member 50 ′ and the second structure are formed by using a plurality of sets of bolt receiving members 10 and hole-down fittings 40 in the same manner as the pulling of the structural members 50 and 50 by the battledore member 20 and the bolt receiving member 10. The material 50 ″ may be drawn, and hole-down hardware 40 is provided on both sides of the second structural material 50 ″ in the standing state, and this is drawn to the bolt receiving metal 10 of the first structural material 50 ′. You may make it pull with the volt | bolt 30.

  Such pulling of the structural members 50, 50 can be effectively used even when the anchor bolt 71 of the foundation 70 is displaced from the column position as shown in FIGS. 9 and 10, for example.

Perspective view of a typical bolt catch Side view with the same part broken Sectional drawing which shows an example of attachment of the same bolt receptacle Sectional view showing another mounting example The perspective view of the principal part which shows the same typical use aspect Side view of the main part with the same part broken Plan view of the main part with the same part broken Sectional drawing which shows another example of attachment of the bolt receiving metal The perspective view of the principal part which shows the other typical usage condition Side view of the main part with the same part broken

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bolt receptacle 11 Shaft part 12 Saddle-shaped head 13 Female screw hole 30 Pulling bolt 50 Structural material

Claims (4)

A bolt receiver having a shaft and a hook-shaped head on one end side of the shaft,
The bolt bracket has a female screw hole penetrating from the hook-shaped head to the shaft end where the hook-shaped head is not provided,
At least the shaft portion is inserted into a hole provided in the first structural member, and the female screw is attached to the second structural member with a pulling bolt prepared to be attached to the second structural member with the hook-shaped head with a wood screw. A bolt receiving material characterized in that it can be screwed into a hole.   The second structural material is joined in a direction orthogonal to the first structural material, and a bolt receiving metal object to which a drawing bolt prepared to be attached to the second structural material is screwed is the first structural material. The bolt receiving metal object according to claim 1, wherein the bolt receiving metal object is provided on the structural material.   3. The bolt receiving metal object according to claim 1, wherein the pulling bolt is rotatably provided on a feather metal plate fixed to the second structural member. 4.   The bolt receiving metal object according to claim 1 or 2, wherein the pulling bolt is rotatably provided on a hole-down metal object fixed to the second structural member.

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