JP2549693B2 - Joint structure of wood members - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure of wooden members such as columns, beams, or girders constituting a wooden frame.

[Problems to be solved by the prior art and the present invention]

In recent years, various structures have been developed in which a joining metal fitting for reinforcement is used in addition to the conventional joint joining at the joining portion of the wooden frame. By the way, in prefabricated construction and equal-volume construction, it is preferable to reduce the labor required for processing the joints and to join them with good workability on site. There is a demand for the development of a joint structure mainly composed of a joint metal, and the invention was developed for the purpose of achieving the demand.

[Means for solving the problem]

The first aspect of the present invention is a joint structure of a wooden member in which one member and the other member are joined by a joining metal fitting, and the outer and inner circumferences are eccentric and the wall thickness is changed in a cross section. An L-shaped engaging groove that is notched closer to the center and that is cut continuously to the thick portion in the circumferential direction is formed, as well as a pulling cylinder that has a wedge insertion groove in the outer peripheral portion of the end, and at both ends. The connecting shaft is formed of a connecting shaft having a hooking portion, and the connecting shaft is inserted through a connecting shaft insertion hole provided across the members to be joined, and the hooking portion at one end of the connecting shaft is locked to one member. , The L-shaped portion of the cylinder in which the hook portion at the other end is exposed in the hole in which the cylinder orthogonal to the connecting shaft insertion hole formed in the other member rotates and the hook portion is inserted into the hole. Pull in the engaging groove By pulling and pulling the cylinder to rotate, the hooking part is moved from the thin part of the pulling cylinder to the thick part, and the rotation stop wedge is inserted into the wedge insertion groove so that the connecting shaft can be tensioned and fixed. The second is the joint structure of the wooden member in which one member and the other member are joined by the joining metal fitting, and the outer and inner circumferences are eccentric and the wall thickness is changed in the cross section. A pulling cylinder that has a L-shaped engaging groove that is notched closer to the center and that is cut continuously to the thick portion in the circumferential direction, and has a wedge insertion groove in the outer peripheral portion of the end, and both end portions. A connecting shaft having a hook portion and a joint cylinder having a female screw hole or an insertion hole, and the connecting shaft is inserted while straddling the members to be joined. The hook portion at one end of the shaft is exposed in a hole in which a cylinder orthogonal to a connecting shaft insertion hole formed in one member is rotated, and the hook portion is inserted into the hole to form an L-shaped member of the cylinder. When the cylinder is rotated by pulling on the dowel groove and pulling it, the hook is moved from the thin portion of the pull cylinder to the thick portion, and the rotation stopper wedge is inserted into the wedge insertion groove to tighten the connecting shaft. It is fixed and provided on the other member through the connecting shaft insertion hole,
A joint cylinder insertion hole that is orthogonal to the connection shaft insertion hole is provided, and the joint cylinder has a female screw hole or an insertion hole so that the connection shaft can be connected in the axial direction and the three axial directions that are orthogonal to it in the cylindrical body. It is a joint structure of a wooden member that is inserted into the joint cylinder so that one end of the connecting shaft is locked to the joint cylinder.

〔Example〕

The present invention relates to a joint structure of a wooden member in which one member and the other member are joined by a joining metal fitting. The joining metal fitting used in the present invention is as shown in FIG. 1, and the main component is a connecting shaft. It consists of a pulling cylinder (referred to as pulling cylinder 1), a connecting shaft 2, and a hooking pin 3, and an additional component is a rotation stop wedge 4,
A joint cylinder 5 and a bracket 6 are used.

The pulling cylinder 1 is a cylindrical body in which the outer circumference and the inner circumference are eccentric to change the wall thickness in a cross section so as to bring about a cam action, and the thin wall portion is notched from the end to the vicinity of the center and is continuous. Is formed with an L-shaped engaging groove 1-1 notched to a thick portion in the inner peripheral direction, and a hexagonal hole 1-2 into which a rotary tool is inserted or a hexagonal protrusion 1 to be engaged with the rotary tool at an end portion. -3 is formed, and a wedge insertion groove 1-4 is formed on the outer circumference.

The connecting shaft 2 is a rod-shaped member having a circular cross section, and has a pin insertion hole 2-1 formed at least at one end thereof, and a pin insertion hole 2-2, a fixing plate 2-3, or a screw 2-on the other end.
4 is formed.

The hooking pin 3 forming the hooking portion has a short rod shape and can be inserted into the pin insertion holes 2-1 and 2-2. Instead of the hooking pin 3, a head or a recess may be formed at the end of the connecting shaft 2. The hooking portion is provided orthogonal to the end of the connecting shaft 2.

The rotation stopper wedge 4 is fitted into the wedge insertion groove 1-4 on the outer peripheral portion of the end portion of the drawing cylinder 1, and the drawing cylinder 1
Is fixed in a predetermined position after the rotation.

The joint cylinder 5 is in a cylindrical state and has a female screw hole 5-1.
Is formed, and the illustrated embodiment has female screw holes 5 in three directions.
-1 formed, joint cylinder 5
As a modified example of the above, it is also possible to use one in which the insertion hole 5-3 of the connecting shaft 2 is formed in the flange 5-2.

The receiving member 6 has hooking flanges 6-1 formed vertically at right angles in the opposite direction, and an insertion hole 6-2 such as a connecting shaft is formed in the center of the plate.

FIG. 2 shows an example of a joint portion using the above-mentioned joint metal. The joint shaft 2 is inserted while straddling the members A and B to be joined, which are made of wood-based members such as girders and columns. One end of 2 is attached to one member A and the fixing plate 2-3
And the other end of the connecting shaft 2 is exposed in a rotating hole (referred to as a rotating hole 7) of the drawing cylinder 1 which is orthogonal to the connecting shaft insertion hole formed in the other member B. Insert the hook pin 3 into the insertion hole 2-1 and
Further, when the pulling pin 3 is fitted into the L-shaped engaging groove 1-1 of the pulling cylinder 1 inserted in the rotation hole 7 and the pulling cylinder 1 is rotated by using a tool, the pulling pin 3 is drawn. Move along the inner circumference of the pulling cylinder 1
Along with the rotation of the connecting shaft 2, the connecting shaft 2 is tensioned by the cam action of moving the hooking pin 3 portion from the thin portion of the pulling cylinder 1 to the thick portion. Thereby, the two members to be joined are tightly joined.

FIG. 3 shows another embodiment, in which the joining metal piece of the embodiment shown in FIG. 2 is added to add the joint cylinder 5 and the receiving piece 6 to join other members C to be joined. With a cylindrical body having the connecting shaft 2 inserted into the through hole 8 formed in one member A, the female screw hole 5 is formed so that the connecting shaft 2 can be connected in the axial direction and the three axial directions orthogonal thereto. 1 is connected by being screwed into the female screw hole 5-1 of the joint cylinder 5 having 1 and the connecting shaft 2 having one end screw 2-4 formed in the other direction is screwed into this joint cylinder 5 and the other end is screwed. It is exposed in the rotation hole 7 formed in another member C to be joined, the hook pin 3 is inserted into the hook insertion hole 2-1 and the hook pin 3 is inserted into the pin insertion hole 2-1. L-shaped engaging groove of pulling cylinder 1 inserted in -1 fitted the hooking pin 3, are to be strained by joining rotating the cylinder 1 allowed attracting connecting shaft 2 by the tool.

FIG. 4 shows an example of using the deformed joint cylinder 5. One connecting shaft 2 is screwed into the joint cylinder 5, but the other connecting shaft 2 is an insertion hole 5-3 of the flange 5-2. Through each connecting shaft 2
The other end is fixed by the pulling cylinder 1.

In each of the above embodiments, the pulling cylinder 1 is fixed by driving the rotation stop wedge 4 into the wedge insertion groove 1-4.

5 to 10 show another embodiment of the present invention,
The same reference numerals as those in the above-mentioned embodiments indicate the same configurations as those. 11 and 12 show a disassembled state and an assembled state of the wooden frame using the above-described joint structure.

〔The invention's effect〕

The present invention has the above-mentioned configuration, and in the first invention,
The joining metal fitting has a cylindrical body whose outer and inner circumferences are eccentric and whose wall thickness is changed in a cross section. The thin wall is notched from the end to the vicinity of the center, and continuously cut to the thick wall in the circumferential direction. It is composed of a pulling cylinder having an L-shaped engaging groove and a connecting shaft having hooking portions at both ends.
A connecting shaft insertion hole, through which a connecting shaft is inserted across members to be joined, one end of the connecting shaft is locked to one member, and a hook portion at the other end is bored in the other member Exposed in a rotation hole that is orthogonal to, and the hooking part is hooked in the L-shaped engaging groove of the pulling cylinder inserted in the rotation hole, and this pulling part is pulled together with the rotation of the pulling cylinder. By shifting from the thin-walled portion of the cylinder to the thick-walled portion, the connecting shaft is tensioned and inserted into the wedge insertion groove on the outer periphery of the end of the pulling cylinder, so that the wedge can be fixed because the rotation stopper wedge is inserted. Further, in the second invention, the connecting shaft is screwed into the joint cylinder having the female screw hole or the insertion hole so that the connecting shaft can be connected in the axial direction and the three axial directions orthogonal thereto by the cylindrical body inserted into one member. And the other member is brought into contact with the one member, and the hooking portion at the other end of the connecting shaft is exposed in the rotation hole formed in the other member and is tensioned by the pulling cylinder, It can be fixed by inserting a wedge for rotation prevention into the wedge insertion groove on the outer periphery of the end of the drawing cylinder. Therefore, both of the inventions can bring various bonded states to the wood members, and are more standardized and simple processing, which is suitable for mass production. Furthermore, assembling each metal joint on the site is simple and easy, and labor saving is remarkable.

[Brief description of drawings]

FIGS. 1-I and II are perspective views showing various kinds of joining metal fittings used in the present invention, and FIGS. 2, 3, and 4 are perspective views shown in a partially disassembled state of an embodiment of the present invention. Figure, fifth
FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10 and FIG. 10 show a modified example of a perspective view showing the outline of the embodiment of the present invention, FIG. 11 and FIG. FIG. 3 is an exploded perspective view and an assembled perspective view of FIG. 1 ... Pulling cylinder, 1-1 ... L-shaped engaging groove, 1-
2 ... Hexagonal hole, 1-3 ... Hexagonal protrusion, 1-4 ... Wedge insertion groove, 2 ... Connection shaft, 2-1, 2-2 ...
Pin insertion hole 2-3, fixing plate, 2-4, screw, 3 ...
… Hooking pin, 4… Rotation wedge, 5… Joint cylinder, 5-1… Female screw hole, 6… Receiving object,
6-1. Exchange flange, 6-2. Insertion hole, 7 ...
Rotating hole, 8 ... Through hole.

Claims (2)

(57) [Claims] 1. In a joining portion structure of a wood member in which one member and the other member are joined by a joining member, the joining member is
A cylindrical body whose outer and inner circumferences are eccentric and whose wall thickness is changed in cross section is cut out from the end to the vicinity of the center in the thin wall portion, and continuously cut out to the thick wall portion in the circumferential direction.
Shaped engagement groove is formed, and it is composed of a pulling cylinder having a wedge insertion groove in the outer peripheral portion of the end and a connecting shaft having hooking portions at both ends, and is provided across members to be joined. The connecting shaft is inserted into the connecting shaft insertion hole, the hook portion at one end of the connecting shaft is locked to one member, and the hook portion at the other end is formed in the other member. The cylinder is exposed in the rotating hole, and the hooking part is hooked on the L-shaped engaging groove of the cylinder inserted in the hole, and the cylinder is rotated to move the hooking part to the thin portion of the cylinder. To a thick wall portion and inserting a rotation-stopping wedge into the wedge insertion groove so that the connecting shaft is tension-fixed. 2. In a joining portion structure of a wooden member in which one member and the other member are joined by a joining fitting, the joining fitting is
A cylindrical body whose outer and inner circumferences are eccentric and whose wall thickness is changed in cross section is cut out from the end to the vicinity of the center in the thin wall portion, and continuously cut out to the thick wall portion in the circumferential direction.
Shaped engagement groove and a pulling cylinder with a wedge insertion groove in the outer peripheral portion of the end, a connecting shaft with hooks at both ends, and a joint cylinder with female screw holes or insertion holes. , A cylinder orthogonal to the connecting shaft insertion hole which is formed by inserting the connecting shaft into the connecting shaft insertion hole provided across the members to be joined and having the hook portion at one end of the connecting shaft formed in one member The hook is exposed in the rotating hole, and the hook is hooked on the L-shaped engaging groove of the cylinder inserted in the hole, and the cylinder is rotated to move the hook from the thin portion to the thick portion of the cylinder. The connection shaft is tensioned and fixed by inserting the rotation stopping wedge into the wedge insertion groove, and the connection shaft insertion hole is provided through the other member. A joint cylinder insertion hole that is orthogonal to the connection shaft insertion hole is provided, and the joint cylinder that has a female screw hole or an insertion hole so that the connection shaft can be connected in the axial direction and the three axial directions that are orthogonal to the cylindrical body is a joint cylinder insertion hole. A joint portion structure of a wood member, characterized in that it is inserted into a joint cylinder and one end of a connecting shaft is locked to the joint cylinder.