JPH1068172A - Wood connector, bolt and spring washer for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent bolts and nuts from loosening even when woods shrink due to drying, by giving tension at all times by placing a spring washer between the nut and a wood in a wood joint. SOLUTION: Wood joining members 10, 20 to join an intersection are placed at the intersection of woods 3, 4 which form a framework. The first bolts 5, 30 and nuts 7 to fix wood joining members 10, 20 to one wood 3 and the second bolts 8, 31 and nuts 9 to fix the wood joining member 10 to the other wood 4 are used. Spring washers 12, 13 are inserted between the woods 3, 4 and the nuts 7, 9. The spring washers 12, 13 are formed by bending a flat plate. The bolts 30, 31 are given a bolt section penetrating the woods 3, 4, stopping pieces 36, 37 which bite into the woods 3, 4 and flat head sections 34, 35 which stops flush at the surface of the woods 3, 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timber joining device for joining intersections of timber in a wooden building, and bolts and spring washers used for the same. More specifically, the present invention relates to beams and columns of a wooden building. The present invention relates to a wood joining device which does not rattle at a cross-fitted joint portion even if the joint portion is dried and shrunk in a long time, and a bolt and a washer used for a joint portion of wood.

[0002]

2. Description of the Related Art Timber of a wooden building, for example, a portion where beams intersect with each other, is joined with a timber joining device in order to increase rigidity. FIG. 10 shows an example of use of a conventional wood joining device 100. This joining device 100
Is formed by attaching a bolt portion 102 to a rectangular backing plate 101 which is a timber joining member to form a blade plate.
The backing plate 101 is fixed to the beam 103 and the bolt portion 1
The beam 103 and the beam 104 were joined by attracting and fixing the 02 to the beam 104.

In this case, a bolt hole 105 is provided in a backing plate 101 serving as a joining member, and the bolt hole 105 is
3 were arranged in alignment with the through holes 106. In addition, bolt 10
7 from the contact plate 101 side with the bolt holes 105 and the through holes 10
6 and a nut 109 was screwed onto the bolt 107 via a flat washer 108 to fix the backing plate 101 as a timber joining member to the beam 103. Further, the bolt part 102 is inserted into the through hole 110 of the beam 104 and the flat washer 1
By screwing the nut 112 through the
It was fixed in a state of being drawn to the 04 side to prevent rattling at the joint of the wooden building. In addition, the flat washers 111 and 108 prevent the heads of the bolts 102 and 107 from digging into the beams 103 and 104.

[0004]

However, in a conventional wooden building, the timber dry-shrinks over the years, and it is inevitable that the cross-sectional dimension of the timber becomes small. There is a problem that the fixing state by the nut is loosened.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problem of the conventional product, and a tension is always applied by interposing a spring washer between a nut and a timber at a joint of the timber. Accordingly, an object of the present invention is to provide a timber joining device for a wooden building, and a bolt and a spring washer in which the fixing state of the bolt and the nut does not become loose even when the timber is dried and shrunk.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a timber joining device for a wooden building, and a bolt and a washer, and is configured as follows to solve the above-mentioned technical problems. That is, the timber joining device of the wooden building of the present invention includes a timber joining member that joins the intersections of the timbers constituting the skeleton, a first bolt and a nut for fixing the timber joining member to one of the timbers. A second bolt and a nut for fixing the timber joining member to the other timber, in a timber joining device for a wooden building, wherein a spring washer is interposed between the timber and the nut. It is characterized by.

Further, in the lumber joining device for a wooden building according to the present invention, the spring washer is formed by bending a flat plate. Furthermore, in the lumber joining device of the wooden building of the present invention, the bolt is a bolt portion penetrating the lumber, and a flat plate-shaped member provided at one end of the bolt portion and latched flush with the surface of the lumber. And a locking piece that is provided on the outer periphery of the bolt portion, the locking piece being provided with a head portion, the bit being engaged with the lumber when the bolt portion is subjected to a predetermined or more fastening force.

The spring washer according to the present invention is characterized in that it is inserted into a bolt. Further, the spring washer is formed by bending a flat plate. Hereinafter, important components of the present invention will be described in more detail.

(Timber joining member) As the timber joining member of the present invention, one of the timbers (beams) as exemplified in the prior art.
Using a rectangular patch attached to the lumber, and fixing the bolt portion of the feather board bolt inserted from the other timber (beam) to the patch to form a feather board, Also, a lug having a portion formed along the beam to be formed is arranged at a corner of the intersection of the timber, and is fixed to the timber by bolts and nuts.

(Spring Washer) Various types of spring washers of the present invention can be used, but those formed by bending a flat plate into a tunnel shape are preferable. The spring washer is usually used in combination with the flat washer. For example, when the spring washer is attached to the flat portion of the pull-in fitting or the mounting seat of the fire metal fitting, it is possible without using the flat washer.

(Locking piece) A triangular flat plate is formed on the outer periphery of the bolt portion of the first and second bolts of the present invention so as to become wider from the outer end toward the inner side so as to easily bite into the timber. It is preferable to provide a locking piece that is formed as follows. At least one of these may be provided on the outer periphery of the bolt portion, but it is preferable to provide a plurality of these.

According to the timber joining device of the wooden building of the present invention, the timber connecting member located at the intersection of the timber includes a spring washer between the timber and the nut screwed into the first and second bolts. The timber is tightened by interposing and the timber is joined. For this reason, since a predetermined tension is always applied to the joining portion of the timber, even if the timber is dried and shrunk, the joining portion does not loosen and the strength of the joining portion is stably maintained.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a timber joining device for a wooden building according to the present invention.

(First Embodiment) FIG. 1 shows a lumber joining device 1 according to a first embodiment of the present invention. The timber joining device 1 is used to connect beams 3 and 4 which are timbers of a wooden building such as a wooden house.

That is, a first bolt 5 for fixing a rectangular backing plate 10 which is a timber joining member at the intersection of the beams 3 and 4 constituting the frame and which joins the intersection.
And a second bolt 8 and a nut 9 for fixing the backing plate 10 as the joining member to the beam 4 as the other timber. Further, between the beams 3 and 4 and the first and second nuts 7 and 8, spring washers 12 and 13 formed by bending a flat plate made of spring steel as shown in FIGS. I am wearing it.

The spring washer may be formed by curving a square flat plate as shown in FIG. 2A, or as shown in FIG. , 19, etc., can be used.

In the present embodiment, the backing plate 1 as a joining member is used.
0, the tip of the second bolt 8 is attached to form a blade plate, and the backing plate 10 is fixed to the beam 3 by the first bolt 5, and the second bolt 8 is pulled toward the beam 4 and fixed. Thereby, the beam 3 and the beam 4 are joined.

Further, a bolt plate 11 is provided in the backing plate 10 as a joining member, and the bolt hole 11 is arranged in alignment with the through hole 6 of the beam 3. The first bolt 5 is inserted into the bolt hole 11 and the through hole 6 from the backing plate 10 side, and the first bolt 5
The first nut 7 is screwed through the flat washer 14, and the spring washer 12 is interposed between the beam 3 and the flat washer 14.
A patch plate 10 as a timber joining member is fixed to the beam 3.
A spring washer having a structure known as a spring washer may be used. However, a plate formed by bending a flat plate as described above has a simple structure and a low manufacturing cost. Reference numeral 17 denotes a bolt hole formed in the center of the spring washer 12.

The second bolt 8 is inserted into the through hole 15 of the beam 4, and a nut 9 is screwed through a flat washer 16, and the above-mentioned spring washer is provided between the flat washer 16 and the nut 9. By interposing a spring washer 13 having the same structure as 12, the backing plate 10 is fixed in a state of being drawn to the beam 4 side.

At the joint of a wooden building, since the tension is always applied by the spring washer as described above, the drying of the timber is always possible even when the drying and shrinkage of the timber occurs and the nut is not retightened. It is possible to cope with shrinkage, to prevent rattling at the joint portion, and to maintain the strength of the joint portion.

(Second Embodiment) FIG. 5 shows a second embodiment of the present invention. In order to join the intersection of the beam 3 and the beam 4, a fire joining member 20 joined using the intersection as a timber joining member is shown. Here, the fire metal fitting 20 is disposed obliquely at the intersection of the beam 3 and the beam 4. And
In order to fix the fire metal fitting 20, one of the mounting seats 21 is applied to the beam 3, and a first locking piece bolt 30 (hereinafter simply referred to as a first bolt) as shown in FIG. , And one of the fire metal fittings 20 is fixed by a spring washer 12 interposed between the first nut 7 and one of the mounting seats 21.

Further, the other mounting seat 22 of the fire metal fitting 20 is applied to the beam 4, and a second locking piece bolt 31 as shown in FIG. 6 (hereinafter, simply referred to as a second bolt).
And the other of the fire metal fittings 20 is fixed by the second nut 9 and the spring washer 12 interposed between the second nut 9 and the other mounting seat 22. In this way, beam 3
And the beam 4 are firmly fixed.

In this embodiment, the first and second bolts 30 and 31 are provided at one end of each of the bolt portions 32 and 33 having a predetermined length, as shown in FIG. It has a flat head and a plurality of locking pieces 36, 37 provided around the bolts 32, 33.
The other end of each of the bolts 32 and 33 is provided with a screw of a predetermined length.

The heads 34, 35 of the first and second bolts 30, 31 are formed in a disk shape having a predetermined thickness, and the heads 34, 35 are formed in a parabolic shape on the bolt portions 32, 33 side. It has curved portions 40 and 41. Locking pieces 36, 3
Reference numeral 7 denotes a triangular plate which gradually widens from the threaded portions 38, 39 toward the heads 34, 35, and is formed to be relatively thin so as to easily bite into the beams 3, 4.
An arbitrary number of the locking pieces 36 and 37 are provided.

As shown in FIG. 5, the first and second bolts 30,
In order to connect the beam 3 and the beam 4 to the fire metal fitting 20 by using 31, the through holes 6 and 15 are formed at predetermined positions of the beam 3 and the beam 4 as shown in detail in FIG. Then, the through holes 6, 1
After aligning 5 with the bolt holes 11 provided in the mounting seats 21 and 22 of the fire fitting 20, the first and second bolts 30 and 31 are inserted from outside the beams 3 and 4. Bolt part 3
Reference numerals 2 and 33 denote mounting holes 2 for through holes 6 and 15 and fire metal fitting 20.
The tips of the threaded portions 38, 39 protrude outward from the mounting seats 21, 21 of the fire metal fitting 20.

Further, a spring washer 1 is
When the nuts 7 and 9 are screwed in with a predetermined tightening torque after inserting the nuts 2 and 13, the spring washers 12 and 13 are compressed. For this purpose, the first and second bolts 30 and 31 are
The locking pieces 36, 37 bite into the beams 3, 4 by being drawn to the side 4. When the nuts 7 and 9 are further rotated, the locking pieces 3
6 and 37 are completely buried in the beams 3 and 4 and the head 3
The beams 4 and 35 also bite into the beams 3 and 4 so that the outer surfaces of the heads 34 and 35 are substantially flush with the beams 3 and 4. At this time, the incorporation of the bolt into the beams 3, 4 is completed. In the present embodiment, the ordinary flat washer is omitted, but it goes without saying that the flat washer can be used together with the spring washer.

When the first and second bolts are provided with the locking pieces 36 and 37 as described above, the bolts are securely fixed to the beam. There is no need to fix and prevent rotation, which makes handling easier. Also, the disk-shaped heads 34 and 35 of the bolts are beams 3,
4 and the outer wall material 2
5, 26 can be attached.

(Third Embodiment) FIG. 8 shows a third embodiment. In this embodiment, a fire metal fitting 20 is used, and a drawing metal fitting 50 having a rectangular cross section is arranged at the intersection of the timber as a timber joining member for joining the intersection of the timber. Further, the pulling fitting 50 includes the first bolt 31 and the nut 7 shown in FIG.
And a nut 9.

At the intersection of the timbers (beams) 3 and 4 constituting the skeleton, a timber joining member joining the intersections is a drawing metal fitting 50 having a square cross section as shown in FIG. is there. The pulling metal fitting 50 is provided on the opposite side 51.
a, 51b and through holes 53a, 53 in 52a, 52b.
b, and 54a, 54b. Each of the through holes 53a, 53b and 54a, 54b is used to connect the first and second bolts 30, 31 to each of the through holes 53a, 53b, 54.
The bolts are shifted from each other so that the bolts do not hit each other when the bolts are inserted through the bolts a and 54b. The shapes of the spring washers 12 and 13 are shown in FIGS.
The manner of attachment and the shapes and attachments of the first and second bolts 30 and 31 are the same as those described in FIGS. 6 and 2, and thus detailed description is omitted.

The through hole 6 provided in the beam 3 and the pull-in fitting 50
First, the positions of the through holes 54a and 54b are adjusted.
Next, the first bolt 30 is inserted into the through hole 6 from the outside of the beam 3, and the screw portion 38 is projected from the through holes 54 a and 54 b of the pull-in fitting 50. The spring washer 1 is
After incorporating 2, the nut 7 is screwed with a predetermined torque,
The metal fitting 50 is fixed to the beam 3.

Further, from the outside of the beam 4, a through hole 15 of the beam 4 is formed.
Then, the second bolt 31 is inserted, and the screw portion 39 is projected from the through holes 53a and 53b of the pull-in fitting 50. After incorporating the spring washer 13 into the screw portion 39, the nut 12 is screwed with a predetermined torque, and the pull-down fitting 50 is fixed to the beam 4. A gap a is formed between the pull-in fitting and the beam 4. It should be noted that in the present embodiment, the squib 20
Is not essential and can be omitted depending on the mounting state.

Also in this embodiment, spring washers 12 and 13 are interposed between the lumbers 3 and 4 and the nuts 7 and 9 and a predetermined tension is always applied to the joints. Even if the timbers 3 and 4 dry shrink after the elapse of the period, rattling does not occur at the joints.

[0033]

As described above, according to the timber joining device of a wooden building and the bolt and the spring washer of the present invention, the first and second bolts are inserted into the timber joining member at the joining portion of the timber. Since the spring washer was interposed between the lumber and the nut when fixing the lumber, a predetermined tension was always applied to the joint, and even if the lumber dried and shrunk, the tension loosened the bolts and nuts. The strength of the joint can be maintained without causing the occurrence.

Further, when a spring washer which is formed by bending a flat plate is used, the structure is simple, the spring performance is sufficient, and the cost is reduced, which greatly contributes to cost reduction.

When the first and second bolts have a locking piece and a flat head, a nut is screwed into the bolt with a predetermined torque or more. Since the nut is engaged and locked, it is not necessary to hold the bolt with a spanner to prevent the idle rotation when rotating the nut. In addition, since the head is flush with the surface of the wood, the outer wall material can be attached to the surface of the wood without any gap, which is convenient.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing an attached state of a timber joining device for a wooden building according to a first embodiment of the present invention.

FIG. 2 is a front view of a spring washer used in the embodiment shown in FIG. 1, wherein a is formed from a square flat plate, and b is formed from a flat plate provided with reinforcing projections.

FIG. 3 is a side view of the spring washer shown in FIG. 2A.

FIG. 4 is a perspective view of the spring washer shown in FIG. 2A.

FIG. 5 is a side view of a timber joining device according to a second embodiment of the present invention.

FIG. 6 is a side view of a bolt used in the second embodiment.

FIG. 7 is a partial cross-sectional view illustrating a mounting state of a bolt according to a second embodiment.

FIG. 8 is a side view of a lumber joining device according to a third embodiment of the present invention.

FIG. 9 is a perspective view of a pull-in fitting which is a timber joining member used in a third embodiment of the present invention.

FIG. 10 is a partial cross-sectional view of a timber joining device for a building according to a conventional example.

[Description of Signs] 1 Timber joining device 3 Timber (beam) 4 Timber (beam) 5 First bolt 7 First nut 8 Second bolt 9 Second nut 10 Timber joining member (Patch plate) 12 Spring washer 13 Spring washer 20 Timber joining member (fire metal fitting) 30 First bolt (bolt with locking piece) 31 Second bolt (bolt with locking piece) 32 Bolt section 33 Bolt section 34 Head 35 Head 36 Locking piece 37 Locking piece 50 Timber joining member (pulling fitting)

Claims (5)

[Claims] A first timber joint member for joining the timber joints at the intersection of the timbers constituting the skeleton, a first bolt and a nut for fixing the timber joint member to one of the timbers; In a timber joining device for a wooden building, comprising: a second bolt and a nut for fixing the timber joining member to the other timber, a spring washer is interposed between the timber and the nut. Timber joining equipment for wooden buildings. 2. The lumber joining device for a wooden building according to claim 1, wherein the spring washer is formed by bending a flat plate. 3. The bolt, comprising: a bolt penetrating the timber; and a flat head provided at one end of the bolt and engaged flush with a surface of the timber. The lumber joining device for a wooden building according to claim 1, wherein a locking piece that bites into the lumber and locks the lumber when a predetermined or more fastening force is applied to the lumber is provided on an outer periphery of the bolt portion. . 4. A spring washer inserted through the bolt according to claim 3. 5. The spring washer according to claim 4, wherein the flat plate is formed by bending the flat plate.