Connecting hardware

Abstract

To provide a joint fitting that can arbitrarily change the attachment angle between materials to be joined, such as wood.SOLUTION: A metal joint 1 is interposed between two pieces of wood so that one piece of wood can be joined to the other piece of wood in an abutting position, and includes a base 2 attached to the one piece of wood, a movable portion 3 attached to the other piece of wood, and a rotating portion 4 that allows the movable portion 3 to rotate relative to the base 2. The rotating portion 4 includes a guide member 6 provided in the base 2, and a through portion 10 provided in the movable portion 3 as a guided portion through which the guide member 6 can be inserted.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a joining fitting.

Background Art

[0002] In the conventional frame structure of wooden buildings, various fittings are used for joining and fixing wood to each other. There is a joining fitting that fixes a beam to a column so that the column and the beam are perpendicular to each other (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the joining fitting of Patent Document 1 has a problem that it cannot be used as it is when a beam has to be installed obliquely on a column.

[0005] Therefore, an object of the present invention is to provide a joining fitting that can arbitrarily change the attachment angle between woods.

Means for Solving the Problems

[0006] The joining fitting of the present invention is a joining fitting interposed between one joined member and the other joined member so as to be joined in a state where one joined member abuts against the other joined member. The joining fitting includes a base portion attached to the one joined member, a movable portion attached to the other joined member, and a rotating portion that enables the movable portion to rotate with respect to the base portion. The rotating portion includes a guide member provided on the base portion and a guided portion provided on the movable portion through which the guide member can be inserted. The guide member is formed by curving a rod-shaped body, and the guided portion is a hole through which the guide member can be inserted. It is characterized by this.

Effects of the Invention

[0007] The present invention provides a joint fitting that allows the mounting angle between pieces of wood to be arbitrarily changed. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of the connecting fitting in the first embodiment of the present invention. [Figure 2] The same as above, this is a front view of the connecting fitting. [Figure 3] The same as above, this is a plan view of the connecting fitting. [Figure 4] The same as above, this is a side view of the connecting fitting. [Figure 5] The above is an exploded perspective view showing an embodiment using a connecting fitting. [Figure 6] The above is a side view showing an embodiment using a connecting fitting. [Figure 7] The above is a plan view showing the beam attached to the column perpendicularly using connecting hardware. [Figure 8] The above is a plan view showing the beam attached to the column at an angle using connecting hardware. [Figure 9] The above is an explanatory diagram showing the usage of wooden buildings using connecting metal fittings. [Best Mode for Carrying Out the Invention]

[0009] Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below do not limit the scope of the present invention as defined in the claims. Furthermore, not all of the configurations described below are essential requirements of the present invention. [Example 1]

[0010] Figures 1 to 9 show Embodiment 1 of the present invention. As shown in Figure 1, the bonding fitting 1 of this embodiment includes a base portion 2, a movable portion 3, and a rotating portion 4 that enables the movable portion 3 to rotate with respect to the base portion 2. In this embodiment, the up, down, left, and right directions in Figure 2 will be described as the up, down, left, and right directions of the bonding fitting 1.

[0011] The base portion 2 includes a base body 5 formed by shaping a metal plate into a rectangular shape, a guide portion 6, and a bent piece portion 7 formed by vertically bending the lower end of the base body 5.

[0012] On both the left and right sides of the base body 5, a plurality of mounting holes 8 are formed so as to form columns in the vertical direction. The plurality of mounting holes 8 are formed in concavo-convex portions 8A formed by embossing or the like so as to project in a substantially semi-spherical shape from one surface 5A of the base body 5 toward the other surface 5B on the opposite side. Regarding the relationship between the mounting holes 8 and the concavo-convex portions 8A, the concavo-convex portions 8A may be formed at the locations where the mounting holes 8 are formed, or conversely, the mounting holes 8 may be formed at the locations where the concavo-convex portions 8A are formed.

[0013] In the center of the base body 5, a plurality of positioning holes 9 are formed so as to form columns in the vertical direction. The diameter of the positioning holes 9 is formed larger than the diameter of the mounting holes 8. The positioning holes 9 are formed in a flanging shape such that a cylindrical portion 9A projects from one surface 5A of the base body 5 toward the other surface 5B on the opposite side. The cylindrical portion 9A can be used as a guide for positioning.

[0014] In this embodiment, the columns of the mounting holes 8 and the columns of the positioning holes 9 are formed parallel to each other in the vertical direction, and the columns of the positioning holes 9 are arranged in the middle of the columns of the mounting holes 8 on the right side and the columns of the mounting holes 8 on the left side.

[0015] In the column of the mounting holes 8 on the right side, the intervals between the respective mounting holes 8 are uneven and they are not arranged in a straight line. The same applies to the column of the mounting holes 8 on the left side.

[0016] The guide part 6 is composed of a pair of upper and lower metal round bars curved into a semi-annular shape. Note that the guide part 6 may be made of a plate material or a square bar in addition to the round bar.

[0017] The right end of the upper guide part 6A is fixed to the base body 5 by welding or the like in the middle of the right column of mounting holes 8 and the column of positioning holes 9 and above the column of mounting holes 8 and the positioning holes 9. The left end of the upper guide part 6A is fixed to the base body 5 by welding or the like in the middle of the left column of mounting holes 8 and the column of positioning holes 9 and above the column of mounting holes 8 and the positioning holes 9.

[0018] The right end of the lower guide part 6B is fixed to the base body 5 by welding or the like in the middle of the right column of mounting holes 8 and the column of positioning holes 9 and below the column of mounting holes 8 and the positioning holes 9. The left end of the lower guide part 6B is fixed to the base body 5 by welding or the like in the middle of the left column of mounting holes 8 and the column of positioning holes 9 and below the column of mounting holes 8 and the positioning holes 9.

[0019] The planar shape of the bent piece part 7 is formed into a rectangular shape that can sufficiently accommodate the vertical projection area (semi-annular shape) of the guide part 6. Note that the planar shape and size of the bent piece part 7 are not limited to the above-mentioned shape. Also, as shown in FIGS. 2 and 4, the bent piece part 7 has a clearance C between it and the movable part 3.

[0020] The movable part 3 is formed by shaping a metal plate material into a rectangular shape, and has through holes 10A and 10B through which the guide parts 6A and 6B can be inserted, respectively, above and below the base end side, which is the side for attaching the movable part 3 to the base 2. The movable part 3 is rotatably attached to the base 2 with the guide parts 6A and 6A inserted into the through holes 10A and 10B, and is separated from the positioning holes 9 and the mounting holes 8 of the base body 5, so that the movable part 3 does not interfere with the positioning operation at the positioning holes 9 or the mounting operation at the mounting holes 8.

[0021] On the tip side, which is opposite to the base end side of the movable part 3, there are provided a notch-shaped locking groove 11 with an open upper part for positioning and a plurality of mounting holes 12.

[0022] Furthermore, the center of the movable part 3 is provided with a cutout 13 that avoids the through-holes 10A and 10B, the locking groove 11, and the mounting hole 12. This is intended to reduce the weight of the movable part 3 and intentionally lower its strength to prevent the wood from cracking, as described later.

[0023] The rotating part 3 consists of guide parts 6A and 6B and through parts 10A and 10B.

[0024] To explain how to use the connecting fitting 1 described above, first, the base 2 is temporarily fixed to the column 14, which is one of the pieces of wood, using the positioning holes 9. After adjusting the mounting position of the base 2, the base 2 is fixed to the column with screws 15 using the mounting holes 8.

[0025] Next, regarding the method of fixing the other piece of timber, the beam 16, to the column 14, a vertical insertion groove 17 is provided in the center of the tip of the beam 16, penetrating vertically, and a positioning fixing member 18, consisting of a pin or bolt perpendicular to the insertion groove 17, is press-fitted into the tip of the beam 16.

[0026] When the fitting groove 17 of the beam 16 is inserted into the movable part 3 of the connecting fitting 1 from above, the positioning fixing member 18 of the beam 16 is guided into the locking groove 11 of the movable part 3 in advance. At this time, the positioning fixing member 18 is smoothly drawn into the fitting groove 17 along the inclination of the locking groove 11. The beam 16 to be erected on the column 14 is temporarily fixed by the engagement of the positioning fixing member 18 inserted into the fitting groove 17 and the locking groove 11 of the movable part 3, and the column 14 and the beam 16 are connected via the connecting fitting 1 by inserting the fixing member 19, which consists of a pin or bolt driven into the beam 16, into the mounting hole 12.

[0027] In this case, the beam 16, which is fixed to the column 14 by the connecting fitting 1, is rotatably connected to the column 14 by the rotating part 3, and the angle of the beam 16 can be arbitrarily changed within a predetermined range, as shown in Figures 7 and 8.

[0028] In this embodiment, the column 14 and the beam 16, which is installed diagonally on the column 14, can be fixed to each other by a single fixing bracket 1.

[0029] Furthermore, since the beam 16 is rotatably connected to the column 14 by the rotating part 3, the angle of the beam 16 can be arbitrarily changed to match the shape of the site.

[0030] Furthermore, as shown in Figure 7, the connecting fitting 1 of this embodiment can also be used to fix a beam 16 perpendicular to a normal column 14.

[0031] The structure of the connecting fitting 1 is relatively simple and robust, with the base 2 and movable part 3 connected by a rotating part 4. This makes it easy to manufacture, inexpensive, and provides stable rotational movement.

[0032] Furthermore, as shown in Figure 5, a recess 14A into which the cylindrical portion 9A can engage is formed in advance in the column 14, and by engaging the cylindrical portion 9A with the recess 14 during positioning as shown in Figure 6, the cylindrical portion 9A can be used as a guide for insertion during positioning, thereby simplifying the positioning of the connecting fitting 1.

[0033] Furthermore, by providing a clearance C between the movable part 3 and the bent piece 7, even if the movable part 3 is lowered due to the weight of the beam 16, as shown in Figure 6, the bent piece 7 does not obstruct the movement of the movable part 3.

[0034] Furthermore, as shown in Figures 7 and 8, by forming a recess 16A in the beam 16 in advance into which the bent piece 7 can engage, and engaging the bent piece 7 with the recess 16A during positioning, the bent piece 7 can be used as a guide for insertion during positioning, thereby simplifying the positioning of the connecting fitting 1.

[0035] As described above, in this embodiment, the joining fitting 1 interposed between the timbers 14 and 16 is used to join one timber to the other timber in a butt-jointed state. The fitting 1 comprises a base portion 2 attached to the column 14, which is one of the timbers; a movable portion 3 attached to the beam 16, which is the other timber; and a rotating portion 4 that allows the movable portion 3 to rotate relative to the base portion 2. The rotating portion 4 comprises a guide member 6 provided on the base portion 2 and a through portion 10 provided on the movable portion 3, which serves as a guided portion through which the guide member 6 can be inserted. As a result, the beam 16 is rotatably connected to the column 14 by the rotating portion 4, and the angle of the beam 16 can be arbitrarily changed to match the shape of the site.

[0036] Furthermore, in this embodiment, the guide member 6 is formed by curving a round rod-shaped body. The through-hole 10, which is the guided portion, is a round hole through which the guide member 6 can be inserted, making it easy to manufacture, inexpensive, and also providing stability in rotational movement.

[0037] Furthermore, in this embodiment, the movable part 3 is provided separated from the base part 2 via the rotating part 4, so that the movable part 3 does not interfere with the positioning work in the positioning hole 9 or the mounting work in the mounting hole 8.

[0038] Furthermore, in this embodiment, the base portion 2 is provided with mounting holes 8, and the mounting holes 8 are formed on the uneven portion 8A which serves as a mounting projection, thereby improving the shear stress near the mounting holes 8 and increasing the strength of the base portion body 5.

[0039] Furthermore, in this embodiment, the base portion 2 is provided with a positioning hole 9 for positioning, and the positioning hole 9 is formed in the cylindrical portion 9A which serves as a positioning projection, thereby simplifying the positioning of the connecting fitting 1.

[0040] Furthermore, in this embodiment, the base portion 2 is provided with a bent piece portion 7, and a gap C is provided between the movable portion 3 and the bent piece portion 7, thereby enabling the positioning of the connecting fitting 1 without hindering the operation of the movable portion 3.

[0041] The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the gist of the invention. For example, the connecting fitting of the present invention may be used to connect columns or beams. The connecting fitting may also be used with its rotating part rotated in a direction other than horizontal. Furthermore, the materials to be joined are not limited to wood, but may be made of metal, resin, or the like. [Explanation of Symbols]

[0042] 1. Connecting hardware 2 base 3 Moving parts 4. Rotating parts 6 Guide members 7. Bent section 8 mounting holes 8A Recessed portion (mounting protrusion) 9 positioning holes 9A Cylindrical section (positioning protrusion) 10 Penetration section (guided section) 14. Column (one of the joined members) 16. Beam (the other member to be joined) C Clearance (spacing)

Claims

1. A joining fitting interposed between one member to be joined and the other member to be joined so that the other member to be joined is butted against the other member, A base attached to one of the materials to be joined, A movable part attached to the other member to be joined, It comprises a rotating part that allows the movable part to rotate relative to the base, The aforementioned rotating part is, The guide member provided at the base, The movable part is provided with a guided portion through which the guide member can be inserted, The guide member is formed by curving a rod-shaped body. The connecting fitting is characterized in that the guided portion has a hole through which the guide member can be inserted.

2. The connecting fitting according to claim 1, characterized in that the movable part is provided in a state separated from the base via the rotating part.

3. The base portion is provided with mounting holes. The connecting fitting according to claim 1, characterized in that the mounting hole is formed in the mounting projection.

4. The base portion is provided with positioning holes for positioning, The connecting fitting according to claim 1, characterized in that the positioning hole is formed in the positioning projection.

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