JP2006177108A - Member fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member fixture used for a cantilever to which a large bending moment is applied. <P>SOLUTION: When fastening a coupling member 12 to which a bending moment is applied and a main member 11 supporting the coupling member 12 with a metallic fitting 13, a shaft 1 is inserted to a circular hole 2 made in an end face of the coupling member 12 and a connecting pin 3, which goes through the connecting hole 5 of the shaft 1, a web 20 of the metallic fitting 13 and the coupling member 12, is driven into, so as to unite the shaft 1 and the metallic fitting 13 with the coupling pin 3. Subsequently, a plurality of fixing pins 4 are driven from the coupling member 12 into fixing holes 6 of the shaft 1, so that a load can be transmitted from the fixing pins 4 to the metallic fitting 13 through the shaft 1. Thereby, the load concentrated around a drift pin 26 is dispersed and therefore the coupling member 12 can prevent a breakage failure while an allowable weight can be increased. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a member fixture used when fastening columns, beams, foundations, and the like constituting a skeleton of a wooden building.

  When assembling members such as pillars, beams, and foundations that form a skeleton in a wooden building, it is necessary to firmly fasten the members to ensure a predetermined strength. For fastening of this member, a method has been used for a long time, in which a convex tenon is formed on one member, a concave tenon groove is formed on the other member, and the tenon is fitted into the tenon groove. However, since the processing of the tenon takes time and the strength tends to be insufficient, in recent years, there are many cases in which a member fixing tool composed of various metal fittings is used. A variety of such member fixing tools have already been put into practical use, and can be applied to most of the places where the members are fastened, and have a great effect in terms of securing strength and improving workability.

  FIG. 7 shows a specific example of a member fixing tool that is already widely used. However, FIG. 7A shows a state in which each element is separated, and FIG. 7B shows a state in which these are integrated. The metal fitting 13 is used for fastening two horizontally arranged members, one member is a main member 11 corresponding to a beam, and the other member is a connecting member 12 supported by the main member 11. The T-shaped fastening portion is constructed by bringing the end surface of the coupling member 12 into contact with the side surface of the main trunk member 11. A metal fitting 13 composed of a front plate 19 and two wing plates 20 is interposed between both members, and a total of three columnar hoses 21 are formed on the front plate 19. Further, a side hole 16 for inserting the side wall 21 is machined on the side surface of the main trunk member 11, and a drill hole 17 penetrating the main trunk member 11 concentrically therewith is also machined. After inserting the tenon 21 into the tenon hole 16, the fastening bolt 14 is inserted from between the slats 20, and the nut 15 is screwed into this tip, whereby the main member 11 and the metal fitting 13 are integrated. The nut 15 is accommodated in the counterbore hole 18.

  In addition, two grooves 24 are engraved on the end face of the coupling member 12 so as to insert the blades 20 of the metal fitting 13, and after inserting the blades 20 into the grooves 24, the drift pins 26 are driven to integrate both. . Therefore, each blade 20 is formed with a U-shaped locking groove 22 and two locking holes 23, and on the side surface of the coupling member 12, the locking grooves 22 and the locking holes 23 are formed. The pin hole 27 is processed together.

  Although the member fixing tool as shown in FIG. 7 can secure a sufficient strength against a tensile load or a shear load, there are cases where a sufficient strength cannot be ensured regarding a bending moment. The bending moment is a problem in the fastening portion of a member that supports a portion protruding from the building such as a veranda or an eaves. When a vertical load is applied near the tip of the coupling member that is cantilevered in FIG. 7, a bending moment is applied to the fastening portion, and as a result, the largest load is applied to the drift pin disposed on the uppermost side in the fastening portion. There is a risk that the drift pin tears and breaks the coupling member. Therefore, it is necessary to take measures such as narrowing or reinforcing the gap between the members that support the veranda, etc. In addition to increasing the number of members and work processes, there are problems such as restrictions on the design to ensure strength. .

  The present invention has been developed based on such circumstances, and is a member fixing tool that can secure sufficient strength at a fastening portion that supports a member used under severe conditions, such as a cantilever beam on which a large bending moment acts. The purpose is to provide.

The invention according to claim 1 for solving the above-mentioned problem is as follows.
A metal fitting interposed between the main member and the coupling member;
A fastening member for fixing the main member and the metal fitting;
A coupling member for coupling the coupling member and the metal fitting;
With
The metal fitting comprises a front plate and a pair of wing plates that protrude from both ends of the front plate and fit into a pair of grooves formed on the end surfaces of the coupling member,
The tightening member comprises a tightening bolt inserted between a pair of blades and penetrating the front plate and the main member, and a nut screwed into a tip portion of the tightening bolt,
The connecting member includes a shaft that is inserted into a round hole formed between a pair of grooves, a connecting hole that is provided on a side surface of the shaft, a locking means that is formed on a blade, and a connecting member that passes through the connecting member. A pin, and a fixing pin penetrating a fixing hole and a coupling member provided on a side surface of the shaft,
The member fixing tool is characterized in that the main member and the coupling member are integrated by a metal fitting and a shaft inserted into a round hole of the coupling member.

  Here, the main member refers to a member that exists near the foundation and plays a role of receiving a load, and one coupling member refers to a member that is supported by the main member. Therefore, in the present invention, there are various cases where the main member is a beam or a column, and the connecting member is similarly a column or beam, a joist that supports the floor, or a climbing beam that supports the roof. There is. And this invention is applicable also to the fastening part which connected both the members in a straight line other than the fastening part which both members cross at right angle and become a T shape or L shape.

  The shape of the bracket is the same as that used in the past, it is a folded plate, and it has a U shape when viewed from the top, with a front plate in the center, and feathers that are perpendicular to the front plate at both ends. The plate is formed symmetrically. In order to improve the strength of the fastening part, the front plate may be formed with one or more protrusions projecting in a columnar shape. In this case, the main member is processed with a hole for inserting the protrusions. It is necessary, and the metal fitting can be attached to the main trunk member by the tenon and the tenon hole.

  The fastening member is used to completely integrate the main trunk member and the metal fitting, and includes a fastening bolt and a nut. The front plate of the metal fitting requires a hole for inserting the fastening bolt. When the front plate is formed with a tenon, the inside of the tenon is hollow, and the head of the tightening bolt can be accommodated here, and the tip of the tightening bolt goes out of the tenon. A hole is machined in the part. In addition, in order to insert the tip of the tightening bolt, a drill hole is processed in a predetermined position in the main trunk member. Therefore, after attaching the metal fitting to the main member, insert the tightening bolt from between the slats, insert the front plate and the drill hole in the main member, and screw the nut into this tip, the tightening bolt is drawn and the main member And the bracket are integrated.

  The connecting member includes a shaft, a connecting pin, and a fixing pin. The shaft is a round bar using steel or the like, and is inserted into a round hole formed in the end face of the connecting member. In addition, it is desirable to process a round hole between a pair of groove | channels of an end surface of a coupling member, the length which can bury the whole shaft is required, and the diameter of a shaft and a round hole shall be the same. In addition, the connecting pin has a role of integrating the shaft and the metal fitting, and a side surface of the shaft is provided with a connecting hole for inserting the connecting pin, so that the connecting pin is also inserted into the blade of the metal fitting. The locking means is provided. As the substance of the locking means, a locking groove in which the outer edge of the slat is cut out in a V shape, a locking hole in which the slat is cut out in a circular shape, or the like is used. When the connecting hole and the locking means are aligned concentrically and then the connecting pin is driven so as to penetrate the connecting hole and the connecting member, the connecting member, the metal fitting and the shaft are integrated.

  In addition to the connection hole, the shaft is provided with a fixing hole penetrating the side surface. When the fixing pin is driven from the periphery of the coupling member toward the fixing hole, the shaft and the coupling member are also integrated. It is desirable to use a plurality of fixing pins for one shaft so that the load can be distributed over a wide range of the coupling member. A plurality of shafts can be used for one metal fitting. In addition, a plurality of locking means formed on the slats are formed per slat. However, a drift pin is inserted in a portion where a connecting pin passing through the shaft is not inserted, as in the conventional case.

  By configuring in this way, it has been improved that the fastening of the coupling member and the metal fitting has conventionally depended only on the drift pin, and the load acting on the coupling member is transmitted from the fixed pin to the metal fitting via the shaft. Therefore, the load can be distributed over a wide range of the coupling member.

  According to the first aspect of the present invention, the shaft is inserted into the coupling member, the shaft and the metal fitting are connected by the coupling pin, and the shaft is integrated with the coupling member by the fixing pin, thereby drifting as in the prior art. This prevents the load from concentrating only on the pin and allows the shaft to distribute the load. Moreover, since multiple fixing pins driven into the shaft can be used, the load acting on each fixing pin is greatly reduced. As a result, it is possible to prevent the coupling member from being torn due to the concentration of the load, and at the same time, the load more than the conventional load. Can withstand. Particularly effective at the fastening part of the members that support the veranda and eaves that need to withstand the bending moment, eliminating the need for measures to ensure strength, reducing the amount of work and costs, and reinforcing ribs Excellent effects can be expected in terms of design, such as the abolition of.

  FIG. 1 is a perspective view showing a configuration example of a member fixture according to the present invention. The main trunk member 11 is a beam firmly supported at both ends, and has a role of receiving various loads. One coupling member 12 is a member supported by the main trunk member 11, and the one shown in the figure is cantilevered and one end contacts the side surface of the main trunk member 11 to form a T-shaped fastening portion. The metal fitting 13 interposed between the main member 11 and the coupling member 12 is a steel plate formed by sheet metal processing, a front plate 19 is formed in the center, and both ends thereof are bent at a right angle. The slats 20 are formed symmetrically. The front plate 19 is formed with three columnar protrusions 21 that are projected in a column shape, and the point that the head of the fastening bolt 14 can be accommodated in the flange 21 is the same as in the prior art. A side hole of the main member 11 is machined with a side hole 16 that is paired with the side wall 21. After the side wall 21 is inserted into the side hole 16, the fastening bolt 14 is inserted, and the tip of the fastening bolt 14 is attached. The point which makes it reach from the drill hole 17 to the counterbore hole 18, and screwed the nut 15 here and integrates both is also the same as before.

  The two slats 20 of the metal fitting 13 have the same shape, and a locking groove 22 is formed above, and two locking holes 23 are formed below the locking groove 22. Further, pin holes 25 and 27 corresponding to the locking grooves 22 and the locking holes 23 are formed on the side surfaces of the coupling member 12, and the metal fitting 13 is inserted into the grooves 24 of the coupling member 12 and then the pin holes 27 are inserted. When the drift pin 26 is inserted, the coupling member 12 and the metal fitting 13 are integrated. The shaft 1 is a steel round bar, and a round hole 2 extending in the axial direction is machined on the end face of the coupling member 12 in order to insert the shaft 1. A single connecting hole 5 is provided on the side surface of the shaft 1. When the slat 20 and the shaft 1 are assembled in a predetermined position, the locking groove 22 is concentric with the connecting hole 5, and the connecting pin is provided here. When 3 is driven, the slat 20 and the shaft 1 are integrated via the connecting pin 3. Further, in addition to the connecting hole 5, two fixing holes 6 are processed on the side surface of the shaft 1, and a pin hole 28 is processed in the coupling member 12 according to this, and the fixing pin 4 is driven therein. Then, the shaft 1 and the coupling member 12 are integrated.

  In the drawing, a single shaft 1 is used above the fastening portion, because the load due to the bending moment acting on the coupling member 12 is concentrated on this portion. Thus, even when the load around the shaft becomes high, the load is transmitted from the plurality of fixing pins 4 to the metal fitting 13 via the shaft 1, so that the connecting member 3 and the drift pin 26 do not damage the coupling member 12.

  2 shows the cross-sectional shape of FIG. 1, FIG. 2 (A) is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 2 (B) is a cross-sectional view taken along the line BB in FIG. . However, each element is drawn in an integrated state after assembly. The metal fitting 13 is integrated with the main trunk member 11 by three fastening bolts 14, and two drift pins 26 are driven into pin holes 27 formed so as to penetrate both side surfaces of the coupling member 12. And penetrates the locking hole 23 of the slat 20. The shaft 1 is inserted into the round hole 2, is integrated with the metal fitting 13 by a connecting pin 3 penetrating the shaft 1, and is coupled to the shaft 1 by a fixing pin 4 driven from a coupling member 12. The member 12 is also integrated.

  FIG. 3 shows a specific example of use of the present invention, FIG. 3 (A) is a perspective view showing an outline of the shape, and FIG. 3 (B) is a CC cross-sectional view thereof. Here, the upright column 31 is the main member 11, and the two coupling members 12 are in contact with each other on both sides thereof. The side holes 16 are machined on both side surfaces of the pillar 31 that is the main trunk member 11, and the metal fittings 13 on both sides are fixed by fastening bolts 14 and nuts 15. The relationship between the metal fitting 13 and the coupling member 12 is the same as in FIG. 2, and the connecting pin 3 driven into the side surface of the coupling member 12 penetrates the wing plate 20 of the metal fitting 13 and the shaft 1 and drifts. The pin 26 penetrates the blade 20, and the shaft 1 is integrated with the coupling member 12 by the fixing pin 4.

  FIG. 4 shows an example of use in a place having a more complicated structure than FIG. 3, FIG. 4 (A) is a perspective view showing an outline of the shape, and FIG. 4 (B) is its DD. It is sectional drawing. Here, the horizontally extending beam 32 is the main trunk member 11, and the two coupling members 12 are in contact with both sides so as to face each other, and two beams are provided above and below the intersection of the main trunk member 11 and the coupling member 12. Column 31 is in contact. The basic points such as the arrangement of the metal fitting 13 are the same as in FIG. 3, but the two shafts 1 are inserted into the left coupling member 12. Here, the upper shaft 1 is inserted with a connecting pin 3 that passes through the locking groove 22 of the blade 20, while the lower shaft 1 is connected with the connecting pin 3 that passes through the locking hole 23 of the blade 20. Is plugged in. As described above, a plurality of shafts 1 may be used for one metal fitting 13 as required. Note that the upper and lower columns 31 are fixed to the beam 32 by a cylindrical round bar 33, and one end thereof is constrained by a fastening bolt 14 and the other end is constrained by a drift pin 34 driven from the side surface of the column 31. Yes.

  FIG. 5 shows a usage example where the main trunk member 11 and the coupling member 12 are arranged on the coaxial line. FIG. 5A is a perspective view showing an outline of the shape, and FIG. Is an EE cross-sectional view. Here, the end surface of the left main member 11 and the end surface of the right connecting member 12 are brought into contact with each other, and the end portion of the main member 11 is supported by the column 31. A hollow hole 16 is machined in the end face of the main trunk member 11. The depth of the hollow hole 16 is increased, and an embedded rod 35 that functions in the same manner as the shaft 1 is embedded therein. 35 is integrated with the main trunk member 11 by a fixing pin 36. Further, an internal thread is machined on the end face of the buried rod 35 and performs the same function as the nut 15 in FIG. The structure on the side of the coupling member 12 is the same as in FIG. 1 and the like. In addition, the column 31 is fastened to the main trunk member 11 by a round bar 33, and this round bar 33 is fastened to the drift pin 34 that penetrates the column 31. It is restrained by a bolt 14.

  FIG. 6 is a perspective view showing an example of a portion to which the present invention can be applied, in which a part of the skeleton structure of a wooden building is extracted and drawn. The beam 32 corresponding to the main trunk member 11 penetrates both ends of the building in a straight line, and the beam 32 is intermittently supported by the column 31. The horizontally extending coupling member 12 is fastened to both side surfaces of the beam 32, and the right coupling member 12 is cantilevered to support the veranda, and a large bending moment acts on the fastening portion. To do. However, the present invention can be applied to all fastening portions in the drawing, and sufficient strength can be secured without using reinforcing means such as ribs.

It is a perspective view which shows the structural example of the member fixing tool by this invention. 2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along line BB in FIG. It is a figure which shows the specific usage example of this invention, (A) is a perspective view which shows the outline | summary of a shape, (B) is the CC sectional drawing. It is a figure which shows the example of use in the location which has a more complicated structure than FIG. 3, (A) is a perspective view which shows the outline | summary of a shape, (B) is the DD sectional drawing. It is a figure which shows the usage example in the location where the main member and the coupling member are arrange | positioned on the coaxial line, (A) is a perspective view which shows the outline | summary of a shape, (B) is the EE sectional drawing. It is a perspective view which shows the example of the location which can apply this invention, and extracted and drawn a part of frame structure of a wooden building. It is a figure which shows the specific example of the member fixing tool already prevailing now, (A) is the state which isolate | separated each element, (B) is the state which integrated these.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shaft 2 Round hole 3 Connecting pin 4 Fixing pin 5 Connecting hole 6 Fixing hole 11 Main trunk member 12 Connecting member 13 Metal fitting 14 Clamping bolt 15 Nut 16 Side hole 17 Drill hole 18 Counterbore hole 19 Front plate 20 Blade plate 21 Side 22 Locking groove (locking means)
23 Locking hole (locking means)
24 groove 25 pin hole (for connecting pin)
26 Drift pin 27 Pin hole (for drift pin)
28 pin holes (for fixed pins)
31 pillar 32 beam 33 round bar 34 drift pin (for pillar)
35 buried rod 36 fixed pin (for buried rod)

Claims (1)

A metal fitting (13) interposed between the main member (11) and the coupling member (12);
A fastening member for fixing the main trunk member (11) and the metal fitting (13);
A connecting member for connecting the connecting member (12) and the metal fitting (13);
With
The metal fitting (13) includes a front plate (19) and a pair of blades that protrude from both ends of the front plate (19) and fit into a pair of grooves (24) formed on the end surface of the coupling member (12). (20)
The fastening member includes a fastening bolt (14) that is inserted from between a pair of blades (20) and penetrates the front plate (19) and the main member (11), and a tip of the fastening bolt (14). A nut (15) screwed into the part,
The connecting member includes a shaft (1) inserted into a round hole (2) formed between a pair of grooves (24), a connecting hole (5) provided on a side surface of the shaft (1), and a slat The connecting pin (3) penetrating the locking means (22, 23) and the connecting member (12) formed in (20), the fixing hole (6) provided on the side surface of the shaft (1), and the connecting member A fixing pin (4) passing through (12),
A member characterized in that the main member (11) and the coupling member (12) are integrated by the metal fitting (13) and the shaft (1) inserted into the round hole (2) of the coupling member (12). Fixture.

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