JP2000192550A - Joining metal fitting and joining part structure of framework member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joining metal fitting and a joining part structure of a framework member capable of restraining looseness and rattling of a joining part by reducing influence by material width directional deformation of the framework member. SOLUTION: A joining metal fitting 10 is used for joining/reinforcing these framework members in a place for crossing/joining the framework members 11, 12 of a wooden building, and is composed of a columnar nut 17 for forming a female screw hole 116 in a side surface, a steel bar 20 having on one end a head part 19 having a bolt inserting hole 18 and a bolt member 21 having a male screw part 21 threadedly engaging with a female screw hole 16 of the columnar nut 17. The columnar nut 17 is embedded/arranged in the crossed/ joined one framework member 1, the steel bar 20 is fixed to the other framework member 12 in a state of projecting the head part 19, and the bolt member 21 is threadedly engaged/fastened by being inserted into the female screw hole 16 of the columnar nut 17 from the bolt inserting hole 18 of the head part 19 to join/reinforce the crossed/joined framework members 11, 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal joint and a joint structure of a framed member, and a metal joint structure used for the joint metal and the joint.

[0002]

2. Description of the Related Art For example, a wooden building is formed by attaching a secondary member such as a wall member to a frame member such as a pillar, a beam, a girder, or a bracing. These frame members are generally joined and integrated via various connections, and are assembled to have a strong frame structure.

In order to obtain a stronger joint structure, the joints of these frame members are preferably reinforced by using various types of reinforcing hardware. The method of reinforcing the joints with such reinforcing hardware is as follows. Generally, there is known one using a vane plate bolt 50 as shown in FIG.

[0004] The joint reinforcement structure using the blade bolts 50 is for connecting and reinforcing the joint between the main beam 51 and the horizontal member 52 that are cross-joined, for example, via a connection 59. That is, in this reinforcing structure, the blade portion 53 of the blade bolt 50 is brought into contact with the side surface of the horizontal member 52, the rod portion 54 of the blade bolt 50 is made to penetrate the main beam 51, and the male screw portion 55 at the tip is washered. And a nut 60 on the opposite side. A bolt hole 56 is formed in the blade plate portion 53 abutting on the side surface of the horizontal member 52, and the bolt member 5 penetrating through the horizontal member 52 through the bolt hole 56.
7 and the male screw portion 58 at the end thereof is fastened to the opposite side surface via a washer and a nut 61. Then, by tightening the blade plate bolt 50 and the bolt member 57 via the nuts 60 and 61, the joint portion between the horizontal member 52 and the main beam 51 at the connection 59 is reinforced.

[0005] However, the bolt holes 5
Bolt member 57 which is inserted into the bolt 6 and fastened to the horizontal member 52
Since both ends of the horizontal member 52 are fastened and fixed to the respective side surfaces of the horizontal member 52 through the horizontal member 52 having a considerable width, the influence of the dimensional change of the horizontal member 52 in the width direction due to drying shrinkage or the like can be considered. Easy to receive. That is, when the horizontal member 52 contracts in the width direction due to drying shrinkage or the like, the contraction amount is affected by the contraction rate, but the bolt member 57 tightens the entire width of the horizontal member 52. Therefore, the amount of shrinkage obtained by multiplying the member width by the shrinkage ratio becomes large, the fastening effect is reduced, and loosening of the bolt member 57 and rattling of the joint are caused.

On the side of the horizontal member 52 opposite to the side where the blade plate portion 53 is provided, a male screw portion 58 at the tip of a bolt member 57 and a washer or nut 61 for fixing the same are projected. However, the fitting when attaching the secondary member to the horizontal member 52 becomes poor.

On the other hand, the rod portion 54 of the blade bolt 50
Is inserted through a through-hole 62 formed in advance in the main beam 51. Since the through-hole 62 is formed with an inner diameter larger than the diameter of the rod portion 54 so that the rod portion 54 can be easily arranged.
The play may cause rattling at the joint.

Further, according to the reinforcing structure using the blade plate bolt 50, one blade plate bolt, two nuts, one bolt member, and two washers are used as reinforcing parts per part. Since it becomes necessary and the number of parts increases, it takes a long time to perform the mounting work, and particularly when working at a high place, it is difficult to perform the work, for example, special attention is required so as not to accidentally drop the parts. There is also a disadvantage that the bolt and nut are easily loosened.

According to the present invention, there is provided a shaft assembly member in which the influence of deformation of the shaft assembly member in the width direction can be reduced to prevent loosening and rattling of a joint portion, and that the fitting at the time of mounting a secondary member is improved. It is an object of the present invention to provide a metal joint and a joint structure of the above, and a mounting metal structure used therefor.

Another object of the present invention is to provide a metal joint and a joint structure of a framed member that can eliminate play at the joint and avoid rattling.

Further, the present invention reduces the number of parts,
An object of the present invention is to provide a metal joint and a joint structure of a frame member that can facilitate and speed up work.

[0012]

SUMMARY OF THE INVENTION The present invention relates to a metal joint used to reinforce a framed member at a place where the framed members of a wooden building are cross-joined. A pillar-shaped nut having a hole, a steel rod having a head having a bolt insertion hole at one end thereof, and a bolt member having a male screw portion screwed into a female screw hole of the pillar-shaped nut; A nut is embedded and installed in one of the cross-jointed frame members, the steel rod is fixed to the other frame member with the head protruding, and the bolt member is fixed to the head member. By inserting the bolt into the female screw hole of the columnar nut from the bolt insertion hole and screwing it together, the joint metal member of the shaft assembly member is characterized in that the joint member is cross-joined and reinforced. Has achieved the above purpose The invention of claim 1 wherein).

[0013] In the metal joint for a frame member according to the present invention, it is preferable that the steel rod is a driven steel rod that is fixed by being driven into a driving hole opened on a side surface of the other frame member. 2).

Further, the present invention provides the joint structure of a frame member, in which the joints of the frame members are reinforced by the joints of the joint members and the above-mentioned metal joints are attached. This has been achieved (the invention according to claim 3).

Further, according to the present invention, a column-shaped nut having a female screw hole formed on a side surface is aligned with a bolt insertion hole formed on the outer peripheral surface of the wooden member so that the female screw hole is aligned with the outer peripheral surface of the wooden member. Buried in the buried hole formed in the surface,
The above object has been achieved by providing a mounting hardware structure in which a fixture to be fixed is inserted into the bolt insertion hole, and is screwed and fastened to the female screw hole to be fixed. Described invention).

In the mounting hardware structure of the present invention, the columnar nut has a circular cross section, a driver locking groove is provided on one end surface thereof, and the columnar nut is buried in the embedding hole. It is preferable that the female screw hole be aligned with the bolt insertion hole by rotating the column nut (the invention according to claim 5).

In the mounting hardware structure according to the present invention, the column nut has a non-circular cross section such as an elliptical cross section or a rectangular cross section, and the column nut is fitted into the embedding hole having the same cross section as the cross section of the column nut. By burying the female screw hole, the female screw hole can be guided by the embedding hole so that the female screw hole matches the bolt insertion hole.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1 and FIG. 2, the metal joint 10 according to the present embodiment is configured such that a horizontal beam 12, which is also a wooden frame member, is orthogonally attached to a main beam 11, which is a wooden frame member, for example. It is used to join and reinforce this joint when joining so as to intersect in the direction.

The joint portion is provided with a dovetail groove 13 having a dovetail-shaped cross-section partly notched on the side surface of the main beam 11 and a dovetail projection having a dovetail-shaped cross-section part protruded from the tip of the horizontal member 12. The joints formed by fitting the joints 14 are reinforced by using the joint hardware 10 of the present embodiment to form a strong joint structure 15 (see FIG. 2). (See FIG. 2). In addition, this connection processing may be performed by hand processing in addition to the pre-cut processing.

The metal joint 10 of this embodiment has a columnar nut 17 having a female screw hole 16 formed on a side surface thereof, and a head rod 19 having a head 19 having a bolt insertion hole 18 at one end thereof. And a bolt member 22 having a male screw portion 21 screwed into the female screw hole 16 of the columnar nut 17.

The columnar nut 17 is a columnar member formed by cutting a round steel having a circular cross section of, for example, about 24 mm and having a length of about 80 mm, and has a side surface extending in the radial direction of the cross section. A female screw hole 16 having a nominal diameter of about 12 mm is formed. This columnar nut 17
Is buried and installed in a buried hole 23 having a diameter of about 24 mm formed at a predetermined position in the center of the upper surface of the main beam 11 designed in advance.

The female screw hole 16 is formed near the lower end of the column nut 17 in FIG. 1, and when the column nut 17 is buried in the main beam 11, the female screw hole 16 vertically intersects with the embedding hole 23 and becomes main. Φ1 previously formed between both sides of the beam 11
The position of the bolt insertion hole 24 of about 2.5 mm and the position in the height direction coincide with each other. Further, for example, a guide line 30 (see FIG. 3) for positioning is drawn on the upper end surface of the columnar nut 17, and this guide line 30 is attached to a mark provided at the opening edge of the embedding hole 23 on the upper surface of the main beam 11. By adjusting the position, the circumferential position of the columnar nut 17 in the embedding hole 23 is adjusted so that the female screw hole 16 and the bolt insertion hole 24 coincide with each other, so that these are continuous on a straight line. The columnar nut 17 whose position has been adjusted in this manner allows the bolt member 22 which is a fixture to be fixed.
Is inserted into the bolt insertion hole 24, and the male screw portion 21 is screwed and fastened to fix the male screw portion 21 of the present invention.

Here, the upper end surface of the column nut 17 is shown in FIG.
For example, a driver locking groove 2 having a minus shape as shown in FIG.
5 is provided, and the column nut 17 is buried and installed in the embedding hole 23. Then, the column nut 17 is
By rotating, the operation of matching the female screw hole 16 with the bolt insertion hole 24 can be easily performed.

Further, as shown in FIG.
The cross-sectional shape is a non-circular cross-section, for example, an elliptical cross-section, and the embedding hole 23 is formed so as to have the same cross-sectional shape. The female screw hole 16 of the columnar nut 17 can be aligned with the bolt insertion hole 24 while being guided by the embedding hole 23, and the mounting hardware structure of the present invention can be obtained.

The steel rod 20 with a fixing head is, for example, φ16 m
Shaft 26 with a length of about 125 mm made of round steel of about m
Has a flat head 19 processed into a rectangular shape at one end thereof, and the head 19 has a bolt insertion hole 18 of about 13 mm in which a bolt member 22 is inserted.

The steel rod 20 with a fixing head is formed between a pair of side surfaces of the horizontal member 12 joined to the main beam 11 and extends in a direction perpendicular to the side surface and is formed with a punching hole of about φ16 mm in advance. The shaft 26 is driven into the shaft 28 in the form of a drift pin, and is fixed without play in the driving hole 28 and with the head 19 protruding from the side surface. The driving hole 28 is provided between the main beam 11 and the horizontal member 1.
The bolt insertion hole 24 formed in the horizontal member 12 and the position in the height direction thereof are formed so that the bolt insertion hole 24 is formed in a state where the two are joined. Therefore, when the head 19 after the driving is projected and arranged in parallel with the main beam 11, the bolt insertion hole 18 is aligned with the bolt insertion hole 24 provided in the main beam 11 and the extension of the female screw hole 16 of the column nut 17. It will be arranged in.

The bolt member 22 is provided with a male thread 21 having a nominal diameter of about 12 mm, a steel rod having a length under the neck of about 230 mm and a length of the distal male thread 21 of about 70 mm. A bolt head 29 having a hexagonal cross section is provided at an end opposite to 21.

The bolt member 22 has a male screw portion 21 of the bolt member 22 from the bolt insertion hole 18 side with respect to the female screw hole 16, the bolt insertion hole 24, and the bolt insertion hole 18 of the columnar nut 17 which are linearly connected. By inserting and screwing into the female screw hole 16,
The metal joint 10 of this embodiment, in which the steel rod 20 with the head for fixing and the bolt member 22 are integrated, is composed of the main beam 11 and the horizontal member 1.
2 will be attached to the joint.

Then, by rotating the bolt head 29 to further tighten the bolt member 22, the horizontal member 12 is further drawn to the main beam 11 side via the steel bar 20 with a fixing head. By applying a close contact force, the joint between the main beam 11 and the horizontal member 12 at the connection is effectively reinforced.

According to the present embodiment, since the columnar nut 17 to which the bolt member 22 is fastened is buried and installed substantially at the center of the main beam 11, the main beam 11 fastened by the bolt member 22 in the width direction of the main beam 11 is installed. The length can be smaller than half the width of the main beam 11. Therefore, even if the main beam 11 contracts in the material width direction, the contraction amount obtained by multiplying the half width by the contraction rate is much smaller than the contraction amount for the entire width. It is possible to reduce the influence of the deformation in the width direction and suppress the loosening and rattling of the joint.

The bolt member 22 is screwed into the female screw hole 16 at substantially the center of the main beam 11 and its male screw portion 21 is not projected to the side opposite to the main beam 11. It is possible to improve the fit when attaching the next member.

Further, according to the present embodiment, the columnar nut 17 and the shaft portion 26 of the steel rod 20 with a fixing head are driven into the embedding holes 23 and the driving holes 28 having the same inner diameter. Is fixed without play in the inside thereof, so that it is possible to effectively suppress rattling due to play of the joint.

Furthermore, according to the present embodiment, the columnar nut 17, the steel rod 20 with a fixing head, and the bolt member 22
Since the metal joint 10 is constituted by the three parts consisting of:
Speeding up is possible.

It should be noted that the present invention is not limited to the above embodiment, and various changes can be made. For example, the metal joint of the present invention does not necessarily need to use a hammerable round steel as a steel rod, and may use a bolt-shaped steel rod formed with an external thread by fastening and fixing it to the side surface of the frame member. it can. In addition, the present invention can be applied not only to a frame member installed in a horizontal direction but also to a joint portion of a frame member installed in a vertical direction or an oblique direction. Furthermore, the mounting hardware structure of the present invention can be employed not only in the case of joining and reinforcing the frame members, but also in other various types of wooden building structures in order to screw-fasten the metal fittings.

[0035]

As described above in detail, according to the present invention, the influence of the deformation of the frame member in the width direction can be reduced, and the loosening and rattling of the joint can be suppressed.
The fit when attaching the secondary member can be improved. In addition, the metal joint and the joint structure of the present invention can effectively suppress the play due to the play of the joint, reduce the number of parts, and facilitate and speed up the work. it can.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a metal joint and a joint structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of a joint structure using a joint hardware according to one embodiment of the present invention.

FIG. 3 is a top view showing an example of a column nut.

FIG. 4 is a cross-sectional view showing another example of a column nut, in which a female screw hole is formed.

FIG. 5 is a perspective view showing a reinforcement structure of a joint using a conventional blade bolt.

[Explanation of symbols]

 Reference Signs List 10 joining hardware 11 main beam (frame assembly member) 12 horizontal member (frame assembly member) 13 dovetail groove (joint) 14 dovetail projection (joint) 15 joint structure 16 female screw hole 17 columnar nut 18 bolt insertion Hole 19 Head 20 Steel rod with fixing head 21 Male screw part 22 Bolt member 23 Embedding hole 24 Bolt insertion hole 25 Driver locking groove 26 Shaft part 28 Driving hole

Claims (6)

[Claims] Claims: 1. A joint hardware used for joining and reinforcing frame members of a wooden building at positions where the frame members are cross-joined, comprising: a column-shaped nut having a female screw hole formed on a side surface; A steel rod having a head having a bolt insertion hole at one end thereof, and a bolt member having a male screw portion screwed into the female screw hole of the columnar nut. The steel rod is fixed to the other frame member with the head protruding, and the bolt member is inserted through the bolt insertion hole of the head member into the columnar nut. Characterized by joining and reinforcing a cross-jointed frame member by inserting the female member into the female screw hole and screw-fastening the same. 2. The joint according to claim 1, wherein the steel rod is a driven steel rod that is driven into and fixed to a driving hole that opens in a side surface of the other frame member. hardware. 3. A joint structure of a frame member to which the joint metal according to claim 1 is attached by reinforcing a joint portion of the frame member by a connection. 4. A column-shaped nut having a female screw hole formed on a side surface thereof, wherein the female screw hole is aligned with a bolt insertion hole formed on the outer peripheral surface of the wooden member, and an opening is formed on the outer peripheral surface of the wooden member. A mounting structure, wherein the mounting bracket is buried and installed in the formed mounting hole, the fitting to be fixed is inserted through the bolt insertion hole, and screwed and fastened to the female screw hole. 5. The column-shaped nut has a circular cross-section, is provided with a driver locking groove on one end surface thereof, and after the column-shaped nut is buried and installed in the embedding hole, the column-shaped nut is rotated using a driver means. The mounting hardware structure according to claim 4, wherein the female screw hole is aligned with the bolt insertion hole. 6. The column-shaped nut has a non-circular cross-section such as an elliptical cross-section or a rectangular cross-section, and the column-shaped nut is fitted into the embedding hole having the same cross-sectional shape as the cross-section of the column-shaped nut. The mounting hardware structure according to claim 4, wherein the female screw hole is guided by the embedding hole so as to match the bolt insertion hole.