JP2008202326A - Joint structure of member using joint metal piece, and its joint metal piece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure by which a member can be easily joined to the other member at a precise position while eliminating the exposure of a joint metal piece, and to provide the joint metal piece. <P>SOLUTION: The joint metal piece 3 to be used comprises a receiving metal piece 5 fixed to a joint part of the member 1 and an insertion metal piece 6 fixed to a joint part of the other member 2. The receiving metal piece 5 comprises a groove-like fixing part 7 having a U-letter shape in cross section, and an engaging groove 8 formed along both side edges and the lower edge of the fixing part 7 to have an engaging groove whose top and inner periphery are open. The insertion metal piece 6 comprises a groove-like fixing part 15 having a U-letter shape in cross section, and a flange 16 formed along both side edges and the lower edge of the fixing part 15 in a protruding manner. The flange 16 of the insertion metal piece 6 is engaged with the engaging groove 8 of the receiving metal piece 5 by being inserted from the above. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a joint structure between a column and a horizontal member, or between horizontal members, and a joint metal used for this structure.

In the frame structure of a wooden frame construction method, either the side of the column and the end face of the horizontal member, the side of the horizontal member and the end face of the horizontal member, or the end face of the horizontal member and the end face of the horizontal member, There are many locations where the other member is abutted against and joined to the member.
Various joining structures and joining hardware for abutting and joining the other member to one member are known. For example, in the beam receiving metal object shown in Patent Document 1, an extending plate is extended downward from a horizontal mounting plate, and a beam receiving plate is integrally provided on the lower edge and both side edges of the extending plate. Reinforcing ribs protrude from the middle part. When using, fix the mounting plate to the upper end of the wall, receive the end of the beam from below and from the side with the beam receiving plate, and insert the reinforcing rib from the end surface of the beam, the beam receiving plate, the beam and the reinforcing rib Drive nails.
In this joint structure, the beam receiving plate is exposed at the joint of the beam, so when attaching finishing materials directly to the joint of the beam, a part of the beam receiver is in the way, and at the part that is not hidden by the ceiling The beam receiving plate appears on the exterior and looks bad.

In addition, the structure includes a receiving metal fitting attached to the joint location of one member and an engagement metal fitting attached to the joint location of the other member. The structure is such that the engagement metal fitting is dropped into the receiving metal metal from above and the members are brought into contact with each other. Bonding hardware is known (see Patent Document 2).
According to this joining structure and joining hardware, since the receiving metal fitting or the engaging metal fitting is fixed in the recess formed in the member, the hardware is not exposed at the joining location.
However, it is difficult to engage the other member at an accurate position with respect to one member, for example, there is no guide for guiding the engaging member on the receiving member.

JP 2000-96739 A US Pat. No. 5,777,380

  This invention makes it a subject to provide the joining structure which can join a member easily to an exact position, and the joining metal fitting used for this joining structure.

In the present invention, the receiving metal fitting is fixed to the joining portion of one member, the insertion fitting is fixed to the end face of the other member, and both members are joined by assembling the insertion fitting from above to the receiving fitting of one member. Join structure. The receiving bracket has an engaging groove portion formed by folding back both side edges, and the insertion fitting has a specific configuration such as a flange portion fitted to the engaging groove. When the insertion member of the other member is inserted and fixed, and the other member is joined to one member, the metal fitting made of the receiving metal fitting and the insertion fitting is not exposed.

When fixing the receiving metal fitting and the insertion metal fitting to one member or the other member using screws, the screw receiving pipes corresponding to the one member and the other member are embedded, and the tip of the screw May be screwed in.
When a tenon pipe is integrally formed on the upper part of the screw receiving pipe and a horizontal member (beam, girder, etc.) is joined to the upper end portion of the pipe column, it may be used also as a column joint on the second floor.
In a structure in which the other member is joined to one member using a receiving metal fitting and an insertion fitting, both members are pulled together by a coupling screw that penetrates the upper part of the receiving fitting and the insertion fitting after joining. May be combined.

According to the present invention, the two members are joined by the receiving metal fitting and the insertion metal fitting that do not appear in the appearance, so that the appearance is good and does not interfere with the finishing work.
By attaching the upper end of the receiving metal fitting and the insertion metal fitting to the upper surface of one member and the other member, even if one member or the other member thins due to aging, the floor board installed on the member can be removed. A receiving metal fitting and an insertion metal fitting support, and it can prevent generating a clearance gap between a floor board and the lower end part of a wall.

When using a screw receiving pipe, the screw receiving pipe plays the role of a washer compared to the case where the screw is simply screwed into the member (wood). And the durability of the joint structure is improved.
Since both members are pulled and fastened together by the connecting screw screwed from the other member side to the one member side, it is possible to suppress the occurrence of squeaking and floor noise at the joint. In addition, at joints where the end of bracing is located, the resistance to reverse shear force pushed up from the bracing side during an earthquake increases.

The metal fittings and insertion fittings are attached to one member and the other member in advance at the factory, but there is no part that protrudes greatly from the outline of these members in the attached state, so it becomes a hindrance during transportation or bulky as a load. There is nothing to do. Also, there is no injury.
Since the flange of the insertion fitting is guided and smoothly engaged with the engagement groove of the receiving fitting, the other member can be easily joined to one member at an accurate position.

[Embodiment 1] FIGS.
FIG. 1 shows a joint structure 4 in which a girder 2 as the other member is abutted against the side surface of the beam 1 as one member and joined using a joint metal 3. In this example, the vertical dimension of the beam is 240 mm, and the vertical dimension of the beam is 105 mm. In FIG. 1, the vertical dimensions of the beams and girders are partially compressed, and fixtures such as screws are not shown.
In this embodiment, the metal joint 3 includes a receiving metal 5 and an insertion metal 6 which are fitted to each other in the vertical direction so that their upper ends coincide.

The receiving metal 5 is a groove shape in which a steel plate having a thickness of 3.2 mm is bent, a vertically long shape having a width of 50 mm and a height of 85 mm, a lower portion having a round bottom, and an upper portion being opened. The bracket 5 further includes a fixing portion 7 which is recessed in the outer side in the center in the width direction and has a U-shaped groove shape in the vertical direction, and has a flange-shaped spreading portion extending around the fixing portion on the inner side. The engaging groove portions 8 are formed on both side edges and the lower edge of the fixing portion 7 by folding back.
The fixing part 7 has a width of 20 mm and a depth of 6 mm, the lower end part is closed in a semicircular shape, and six fixing holes 9 are formed at intervals of 10 mm in the vertical direction at locations corresponding to the bottom of the groove. .

Specifically, the engaging groove portion 8 includes a rear wall 10 projecting laterally with a width of 15 mm from the peripheral edge of the fixed portion 7, and a side portion folded back from the both side edges of the rear wall 10 toward the inner surface side. It consists of a substantially semicircular lower front wall 12 that is folded back from the lower end of the front wall 11 and the rear wall 10 with an interval upward, between the side front wall 11 and the rear wall 10 and the lower front wall 12. An engagement groove with a spacing dimension of 10 mm is formed between the rear wall 10 and the rear wall 10. A portion corresponding to the bottom portion of the engaging groove portion 8 is a semicircular shape concentric with the lower end portion of the fixing portion 7 at the lower portion of the receiving metal fitting 5.
The upper end of the side front wall 11 is positioned below the upper end of the back wall 10, and the upper edge is inclined downward toward the inside. In addition, an auxiliary insertion hole 14 for inserting a coupling screw 13 (described later in FIG. 10) is formed in the upper part of the back wall 10 and above the side front wall 11.

The metal fitting 6 is formed by bending a 3.2 mm thick metal plate into a vertically long shape having a width of 43 mm and a height of 81.5 mm, and as shown in FIGS. A fixing portion 15 having a U-shaped groove shape is provided in the vertical direction, and a flange portion 16 is formed by projecting from both side edges and the lower edge of the fixing portion 15.
The fixed portion 15 has a width of 20 mm and a depth of 9.6 mm, and its lower end is semicircular. Further, six fixing holes 17 are formed in the fixing portion 15 at intervals of 10 mm in the vertical direction.
The flange portion 16 projects with a uniform width of 15 mm, and its lower end portion is a semicircular shape concentric with the lower end portion of the fixing portion 15. In addition, auxiliary insertion holes 18 for inserting the coupling screws 13 are formed on both upper sides of the flange portion 16 at positions slightly higher than the auxiliary insertion holes 14 of the receiving metal fitting 5 with respect to the upper side. ing.

Using a router at the joint set in the beam 1, a wide and shallow groove and a deep groove at the center of the bottom are formed. The width and depth of the shallow groove are set to be equal to the dimension between the left and right engaging groove portions 8 and the thickness dimension of the engaging groove portion 8 in the metal fitting 5, respectively, and the deep groove is substantially equal to the outer width of the fixing portion 7. Further, the vertical dimension is made substantially equal to the vertical dimension of the fixed portion 7.
On the other hand, on the end face of the girder 2, a longitudinal groove having a width of the fixing portion 15 of the insertion metal fitting 6 and a depth shallower than the outer depth of the fixing portion 15 by about 3.5 to 4 mm is formed. The processing by the router is performed from the top to the bottom of each member, and a groove having an upper portion and a front surface opened and a semicircular bottom portion is formed.

  The bracket 5 is fixed to the beam 1 by screwing a screw 19 passed through the fixing hole 9 of the fixing portion 7. Every other screw 19 is screwed into the six fixing holes 9 (in this embodiment, odd-numbered holes from the top). Further, the metal fitting 6 is fixed to the end of the beam 2 in the same manner with a screw 19 passed through the fixing hole 17 (FIG. 8). The receiving metal fitting 5 is fitted and fixed in the formed shallow groove and deep groove, and is embedded in the joint portion of the beam 1 which is one member.

  Note that the semicircular lower ends of the fixing portion 7 and the engaging groove portion 8 of the receiving metal fitting 5 are in close contact with the lower ends of the corresponding deep and shallow grooves, and the lower end portion of the fixing portion 15 of the insertion fitting 6 is Engage in close contact with the lower end of the longitudinal groove formed on the end face of the beam 2. The insertion fitting 6 is fixed with a gap of about 3.5 to 4 mm between the flange portion 16 and the end face of the beam 2. At this time, the upper ends of the receiving metal 5 and the insertion metal 6 are aligned with the upper surfaces of the beam 1 and the beam 2, respectively.

Then, the girder 2 is lifted, and the insertion fitting 6 at its end is dropped into the fitting 5 from above and engaged. At this time, since the upper end edge of the side front wall 11 of the receiving metal fitting 5 is inclined, it is easy to insert the flange portion 16 of the insertion fitting 6 into the upper end of the engaging groove portion 8. The flange portion 16 of the insertion fitting 6 is fitted and guided into the engaging groove portion 8 of the receiving fitting 5 to be smoothly engaged, and the lower end portion of the flange portion 16 of the insertion fitting 6 corresponds to the lower end portion of the engagement groove portion 8. Therefore, the lower end portion of the flange portion 16 is in close contact with the lower end portion of the engaging groove portion 8, and the weight of the girder 2 applied to the receiving metal fitting 5 via the flange portion 16 is reduced to the beam 1 via the receiving metal fitting 5. Supported by
In the state where the end portion of the beam 2 is joined to the beam 1, the joining hardware is not exposed except for the upper part.

Next, as shown in FIG. 10, the auxiliary insertion hole 14 formed in the upper part of the receiving metal fitting 5 and the auxiliary insertion hole formed in the upper part of the insertion metal fitting 6 from the upper surface of the end of the beam 2 to the beam 1 side. 18 and the girder 2 is drawn to the screwed beam 1 obliquely downward. Note that FIG. 10 is reversed from the viewing direction of FIGS. Further, in FIG. 10, the head of the coupling screw 13 is shown protruding from the upper surface of the girder 2, but this is to make it easier to see the mounting state of the screw, and actually does not protrude from the upper surface of the girder 2. . The connecting screw 13 is a target screw for fastening the receiving metal 5 attached to the beam 1 and the insertion metal 6 attached to the beam 2.

  With the above configuration, the end of the beam 2 is securely bonded to the beam 1 by the receiving metal 5 and the insertion metal 6, and the metal joint 3 made of these is not exposed. Furthermore, since the receiving metal fitting 5 and the insertion metal fitting 6 are mounted with their upper ends aligned with the upper surfaces of the beam 1 and the girder 2, even if the beam 1 and the girder 2 are thinned, the floor plate attached to the upper surface of the metal fitting is a joint metal. It is supported by the upper end of 3 and does not sink, and it is hard to generate | occur | produce the problem that a structural material is exposed in the corner of a room.

  Further, since the coupling screw 13 is screwed from the upper surface of the end of the beam 2 to the beam 1 side through the auxiliary insertion holes 14 and 18 of the receiving metal fitting 5 and the insertion metal fitting 6, the beam 2 is inserted into the beam 1. Is attracted and tightened, so there is no generation of squealing or squeaking noise caused by loose joining. Furthermore, by connecting with the connecting screw 13 as described above, even if a reverse shearing force that is pushed up at the time of an earthquake is applied because the joint portion hits the upper end of the brace 20 (FIG. 10), the end of the beam 1 from the beam 1 The situation where the part is pulled out can be prevented.

[Embodiment 2] FIG.
FIG. 11 shows a joint in which the end surface (joint part) of the other beam 21 having the same vertical dimension is abutted against the side face (joint part) of one beam 1 having a vertical dimension of 240 mm and joined by the joint hardware 3a. The structure is shown. The same reference numerals are used for the same parts as in the first embodiment, and detailed description is omitted.
The metal joint 3a is composed of a receiving metal fitting 5a, an insertion fitting 6a, one screw receiving pipe 22 and the other screw receiving pipe 23. The receiving metal 5a has a vertical dimension of 205 mm and 18 fixing holes 9a, and the insertion metal 6a has a vertical dimension of 201.5 mm and 18 fixing holes 17a.

  Each of the screw receiving pipes 22 and 23 is formed by forming four positioning grooves 24 along the axial direction on the peripheral wall of a round pipe having a length of 85 mm and an outer diameter of about 22 mm. The positioning groove 24 is for guiding the tip of the screw 19a to position the screwed portion with respect to the pipe, and four grooves are formed at equal intervals in the circumferential direction. For example, the four are aligned in four directions in which beams and girders may be joined at the same height with respect to one column.

  At the time of attaching the metal fitting 5a, as in the case of the first embodiment, a shallow groove and a deep groove suitable for the metal fitting 5a are formed by a router at a joint portion set on the side surface of one beam 1 for fixing. A round hole into which the screw receiving pipe 22 is inserted is formed in the vertical direction at a position corresponding to the length of the screw 19a to be used. Similarly, when attaching the insertion fitting 6a, a vertically long groove is formed on the end face of the other beam 21 by a router, and the screw receiving pipe 23 is placed at a position corresponding to the length of the screw 19a. A round hole for inserting is formed in the vertical direction. Each of the round holes has a depth that matches the length of the screw receiving pipes 22 and 23, and the upper surfaces of these pipes are flush with the upper surfaces of the beams 1 and 21.

  Then, the receiving metal fitting 5a is mounted in accordance with the shallow groove and the deep groove of one beam 1, and the screw receiving pipe 22 is inserted into the round hole in the direction of the four positioning grooves 24, and the fixing hole 9a of the receiving metal 5a is inserted. Then, the screw 19a is screwed into the screw receiving pipe 22. The tips of the upper four screws 19 are screwed into the screw receiving pipe 22.

There are 18 fixing holes 9a in the metal fitting 5a. In this embodiment, the screws 19a are screwed in using the even-numbered fixing holes 9a. The same applies to the insertion fitting 6a. The fixing portion 15 of the insertion fitting 6a is fitted into a vertically long groove formed on the end face of the other beam 21, and the screw receiving pipe 23 is similarly fitted into the round hole. A screw 19a is screwed and fixed from the fixing hole 17a of 6a. The upper four screws 19 a collide with the screw receiving pipe 23 and are screwed into the pipe 23.

In this state, the metal fitting 5a is fitted into the shallow groove and the deep groove and is embedded in one of the beams 1, and the insertion fitting 6a has a flange portion 16a 3.5 from the end face of the other beam 21. It is in a state of floating about 4 mm. The other beam 21 is lifted, and the insertion fitting 6a at the end thereof is fitted into and engaged with the receiving fitting 5a fixed to the joint portion of the one beam 1 from above.
Then, if necessary, a screw 13a (not shown) for coupling is screwed into one beam 1 side through the auxiliary insertion holes 14a and 18a of the receiving metal fitting 5a and the insertion fitting 6a from the other beam 21. The other beam 21 is drawn toward one beam 1.

In the case of the second embodiment, the vertical dimension of the metal joint 3a is increased according to the vertical dimension of the beams 1 and 21. Further, the screw receiving pipes 22 and 23 serve as a washer for the screw 19a, and the attachment state of the metal fitting 3 is strong and stable.
The screw receiving pipes 22 and 23 may be elongated according to the vertical dimensions of the receiving metal fitting 5a and the insertion metal fitting 6a.

[Third Embodiment] FIG.
FIG. 12 shows a second horizontal member (the other member) having a vertical dimension of 240 mm at the corresponding position on both side surfaces of the first horizontal member (one member / beam) 25 having a vertical dimension of 240 mm. The end surfaces of the beam (26) and the third horizontal member (the other member / girder) 27 having a vertical dimension of 105 mm are brought into contact with each other, and the first horizontal member 25 and the second horizontal member 26 are joined in the second connection. This is a joining structure in which the first horizontal member 25 and the third horizontal member 27 are joined by the first joining hardware 3 by joining with the hardware 3a. With respect to the first horizontal member 25, the end of the second horizontal member 26 is shown separated, and the end of the third horizontal member 27 is shown already joined. Yes.

The second metal fitting 3a is the same as the metal fitting 3a of the second embodiment, and the receiving metal fitting 5a is fixed to one side surface of the first horizontal member 25 with a screw 19a reaching the screw receiving pipe 22, and the insertion fitting. Reference numeral 6 a denotes a screw 19 a that reaches the screw receiving pipe 23 and is fixed to the end surface of the second horizontal member 26.
The first metal fitting 3 is the same as that of the first embodiment although the viewing direction is reversed, and the receiving metal fitting 5 is a screw reaching the screw receiving pipe 22 embedded in the first horizontal member 25. 19 is fixed to the first horizontal member 25, and the plug 6 is fixed by a screw 19 reaching a screw receiving pipe 28 embedded in the third horizontal member 27.

In the third embodiment, the screw receiving pipe 22 is shared by the second horizontal member 26 and the third horizontal member 27 which are bonded to the corresponding positions on both side surfaces of the first horizontal member 25. In this case, since the screws 19 and 19a are screwed into the screw receiving pipe 22 from both sides, the screws 19a used for the one receiving metal fitting 5a are the even numbers of the fixing holes 9a in order to prevent them from colliding with each other. The fixing screws 19 and 19a are not interfered with each other by using an odd numbered screw 19 for the fixing hole 9.
In this way, when the screw receiving pipe 22 is shared, not only two opposite directions but also a direction from a direction orthogonal to these may be added.

[Embodiment 4] FIG.
In FIG. 13, the ends of the beams 30 and girders 31 are joined to the opposite side surfaces of the lower floor pillar 29 (first member), and the upper floor pillar 32 is joined to the lower floor pillar 29. The lower metal pillar 29 and the beam 30 showing the connection structure are connected to each other using the metal fitting 3a in the second embodiment and the metal fitting 3 in the first embodiment is used between the beam 31 and the beam 31. Has been. In this case, the screw receiving pipe 33 is formed by integrally forming a screw receiving portion 34 and a tenon pipe portion 35 for a pillar (FIG. 14). The screw receiving pipe 33 is provided with a through hole 36 through which a pin for engagement with the column 32 is passed through the tenon pipe portion 35, and a positioning hole 37 is provided in the screw receiving portion 34.

A round hole is formed in the upper end surface of the lower-level column 29 and a mortise hole is formed in the lower end surface of the upper-level column 32. Further, shallow grooves and deep grooves for the receiving metal 5 and the receiving metal 5a are processed on the two opposing surfaces of the pillar 29 on the lower floor, and longitudinal grooves are respectively formed on the end faces of the beam 31 and the beam 30. . Then, the screw receiving portion 34 of the screw receiving pipe 33 is inserted into the round hole of the column 29 on the lower floor, and the upper floor column 32 is aligned with the mortise pipe portion 35 of the screw receiving pipe 33 with the lower mortise from above. Drop and engage with an engaging pin (not shown).
Next, the receiving metal 5 and the receiving metal 5a are fixed with screws 19 and 19a on the two opposing surfaces of the lower column 29. The tips of these screws are screwed into the screw receiving portion 34 of the screw receiving pipe 33.

  In addition, although a horizontal member can be joined to each of the four side surfaces using a joint metal 3 on a column having a rectangular cross section, when viewed from the column, one screw receiving pipe 33 embedded in the core of the column. On the other hand, the screws 19, 19a may be screwed in from two directions, three directions, or four directions. At this time, for example, in order to increase the mounting strength of the screw 19 by the screw receiving pipe 33, if the length of the screw 19 is sufficiently long to penetrate the inside of the screw receiving pipe 33, each screw is the same in the vertical direction. In the case of the position, screws from different directions collide inside the screw receiving pipe 33. A means for avoiding this is to use the odd-numbered and even-numbered fixing holes 9 and 17 and to change the positions of the screws 19 and 19a in the vertical direction. In order to avoid vertical interference and interference with each other, fixing holes 9 and 17 having a large number of screws necessary for mounting × 4 are required (FIG. 16). Since a distance of about 10 mm is also required between 17 and 17a, the longitudinal dimension of the joint metal fitting 3 becomes large. Such hardware is inconvenient for joining horizontal members (beams and girders) with small vertical dimensions.

  On the other hand, in order to avoid the interference between the screws as described above, it can also be solved by preventing the tip of the screw screwed into the screw receiving pipe 33 from exceeding the center position of the screw receiving pipe 33. However, if the diameter of the screw receiving pipe 33 is about 22 mm as described above, but the tip end of the screw does not exceed the center position of the screw receiving pipe 33, only the tip ends of the screws 19 and 19a are screwed into the pipe. Can not be done, the resistance to pulling is weakened. Accordingly, in order to avoid the mutual interference of the screws so that the tip of the screw does not exceed the center position of the screw receiving pipe 33, the diameter of the screw receiving pipe is set to about 42 mm, and the screws 19, 19a with respect to the screw receiving pipe 33 are arranged. Make the barb full and avoid mutual interference.

Since the vertical dimension of the first member and the second member is various, it is desirable to prepare the receiving metal fittings 5 and 5a and the insertion metal fittings 6 and 6a having different vertical dimensions. For example, a member having a vertical dimension of 150 mm to 210 mm is joined using a receiving metal having a vertical dimension of 145 mm and an insertion metal having a vertical dimension of 141.5 mm.
And the receiving metal fitting 5 and the insertion metal fitting 6 as in the first embodiment are used for members whose vertical dimension is 90 mm to 120 mm, and the receiving metal fitting as in the second embodiment is used for members whose vertical dimension is 210 mm to 270 mm. It joins using 5a and the insertion metal fitting 6a.

[Embodiment 5] FIGS.
16 and 17 show a joining structure for joining the first horizontal member 38 and the second horizontal member 39 (or the column and the horizontal member) having a vertical dimension of 270 mm to 360 mm.
On the side surface of the first horizontal member 38 as one member, a vertically long shallow groove and a deep groove at the center in the width direction are formed by a router downward from the upper end of the first horizontal member 38. The same two receiving metal fittings 5 are arranged one above the other and spaced apart and fixed with screws 19 (FIG. 16). The length L of the gap is the same as or slightly longer than the vertical dimension (85 mm) of the metal fitting 5.

  On the end surface of the second horizontal member 39 which is the other member, a vertically long groove is formed downward from the upper end thereof, and the same two insertion fittings 6 as those in the first embodiment are vertically arranged on this end surface. They are engaged side by side and fixed with screws 19. The upper and lower insertion fittings 6 are attached at positions corresponding to the upper and lower receiving fittings 5.

The end surface of the second horizontal member 39 is shifted upward from the mounting position and abuts against the side surface of the first horizontal member 38, and the lower insertion fitting 6 is arranged between the upper and lower receiving fittings 5. Next, the second horizontal member 39 is slid downward, and the upper and lower insertion fittings 6 are dropped into the upper and lower receiving fittings 5 and engaged.
If the vertical dimension of the horizontal members 38 and 39 is further increased, the receiving metal fitting 5a and the insertion metal fitting 6a having a larger vertical dimension are combined and used side by side. To do.

The embodiment has been described above.
This metal joint 3 can be used to abut the end portions of the first and second members and connect them in the length direction, and the end of the horizontal member on the wall surface by the 2 × 4 method or the like. It can also be used in places where it is necessary to abut and join.

The perspective view of a junction structure (Example 1). The front view of a receiving metal fitting. The top view of a receiving metal fitting. Side view of the bracket The front view of an insertion metal fitting. The top view of an insertion metal fitting. The side view of an insertion metal fitting. The perspective view which shows the state which attached the receiving metal fitting and the insertion metal fitting to the joining location. The perspective view which shows the state made to join. The perspective view which shows the state which joined. The perspective view which shows the state which attached the receiving metal fitting and the insertion metal fitting to the joining location (Example 2). The perspective view which shows the state of a junction location (Example 3). The perspective view which shows the state of a junction location (Example 4). The perspective view of the screw receiving pipe integrated with the tenon pipe. The expanded view which shows the utilization example of the hole for fixing (when using the 4 side surfaces of a pillar). The front view of the 1st horizontal member which attached the some receiving metal fitting (end surface and Example 5). The front view (end surface) of the 2nd horizontal member which attached the some insertion metal fitting.

Explanation of symbols

1 Beam (one member)
2 digits (the other member)
3, 3a Joining hardware 4 Joining structure 5, 5a Receiving metal fitting 6, 6a Insertion metal fitting 7 Fixing part 8 Engaging groove part 9, 9a Fixing hole 10 Rear wall 11 Side front wall 12 Lower front wall 13, 13a Coupling screw 14 , 14a Auxiliary insertion hole 15 Fixing portion 16, 16a Flange portion 17, 17a Fixing hole 18, 18a Auxiliary insertion hole 19, 19a Screw 20 Bracing 21 Beam 22 One screw receiving pipe 23 The other screw receiving pipe 24 Positioning groove 25 First 1 horizontal member 26 second horizontal member 27 third horizontal member 28 screw receiving pipe 29 pillar (lower floor)
30 Beam 31 Digit 32 Column (upper floor)
33 Screw receiving pipe 34 Screw receiving portion 35 Tenon pipe portion 36 Through hole 37 Positioning hole 38 First horizontal member 39 Second horizontal member

Claims (15)

  When the metal fitting is buried in the joint of one member, the metal fitting is fixed to the joint of the other member, and the metal fitting is dropped into the metal fitting from the top and engaged, the metal joint is exposed except at the top. The joining structure of one member and the other member characterized by not having.   Fix the receiving bracket to the joint location of one member, fix the insertion bracket to the junction location of the other member, drop the engagement bracket from the top and engage it, and join the other member to one member Then, after joining, from the upper surface of the end of the other member toward the one member, a screw for coupling is passed through the auxiliary insertion hole formed in the upper end of the receiving metal fitting and the insertion metal fitting, and is screwed diagonally downward. A joining structure of one member and the other member, wherein the member and the other member are attracted and joined.   Two or more receiving metal fittings are fixed with screws around the circumference of the same portion of one member, and the screws for fixing the respective receiving metal fittings are arranged so as not to collide inside one member. Item 3. The joining structure of one member and the other member described in item 1 or 2.   The joining structure according to any one of claims 1 to 3, wherein upper ends of the receiving metal fitting and the insertion metal fitting are flush with the upper surfaces of the one member and the other member.   One screw receiving pipe is embedded in the vicinity of the joint location of one member, and the metal fitting is fixed to the joint location with a screw. The tip of the screw is screwed into the screw bracket, and the other portion is near the joint location of the other member. 5. The screw receiving pipe according to claim 1, wherein the screw receiving pipe is buried and the insertion fitting is fixed with a screw at the joint, and the tip of the screw is screwed into the screw receiving pipe. The joining structure of the member and the other member.   At the joint location of one member, fix the two brackets in the vertical direction with the gap between the brackets more than the vertical dimension of the bracket. A joining structure of one member and the other member, which is fixed in correspondence with the position of the receiving metal fitting, and the upper and lower insertion fittings are respectively dropped and engaged with the upper and lower receiving metal fittings from above.   A metal fitting for abutting and joining the other member to one member, comprising: a receiving metal fitting fixed to the joint location of the one member; and an insertion metal fixture fixed to the joint location of the other member. The receiving bracket has a groove-shaped fixing portion having a U-shaped cross section, and an engaging groove portion formed along both side edges and the lower edge of the fixing portion, and forming an engaging groove having an upper end and an inner peripheral side opened. The insertion fitting has a groove-shaped fixing portion having a U-shaped cross section, and a flange portion formed to protrude along both side edges and the lower edge of the fixing portion. A joint hardware characterized by being dropped into the mating groove from above and engaged.   8. A screw receiving pipe into which a tip of a screw for fixing the receiving metal fitting to one member is screwed, and another screw receiving pipe into which the tip of a screw for fixing the inserting metal fitting is screwed. The listed joint hardware.   The joint metal fitting according to claim 8, wherein a tenon pipe is integrally formed on an upper portion of the screw receiving pipe.   The metal fitting according to claim 8 or 9, wherein a positioning groove at a screw tip is formed in an axial direction on a peripheral wall of the screw receiving pipe.   The joining hardware according to any one of claims 8 to 10, wherein four positioning grooves are formed at equal intervals in the circumferential direction.   The engagement groove of the metal fitting includes a rear wall that protrudes laterally from the periphery of the fixed part, a side front wall that is folded back from both side edges of the rear wall to the front side, and a back wall that is spaced from the rear wall, and the lower end of the rear wall. The metal joint according to any one of claims 7 to 11, which is formed of a back wall and a lower front wall spaced apart from each other to the upper surface side.   The joint hardware according to claim 12, wherein the upper edge of the side front wall of the bracket is inclined downward toward the inside.   The upper end of the side front wall is positioned below the upper end of the back wall, and one auxiliary insertion hole is formed on both sides of the back wall of the back bracket so that the screw penetrates above the side front wall. On the both sides of the flange of the insertion fitting, the other auxiliary insertion hole that penetrates the screw is formed in the upper part, and the auxiliary insertion hole of the reception fitting is arranged below the auxiliary insertion hole of the insertion fitting whose upper end is aligned with the reception fitting. The joint metal fitting according to claim 12 or 13, further comprising a coupling screw that is inserted into the auxiliary insertion hole and screwed into the one member from the upper surface of the other member.   The upper part of the screw receiving pipe embedded in one member is integrally formed as a tenon pipe part, and a through hole for inserting an engagement pin is formed in the tenon pipe part. Bonding hardware described in 1.

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