Joint fitting

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 metal fitting. [Background technology]

[0002] In conventional framework structures of wooden buildings, various metal fittings are used to join and secure wooden pieces together, including metal fittings that secure the columns and beams to the columns so that they are perpendicular to each other (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-164653 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the metal joints in Patent Document 1 have the problem that they cannot be used as they are when a beam needs to be erected at an angle on a pillar.

[0005] Therefore, an object of the present invention is to provide a metal connector that allows the attachment angle between pieces of wood to be changed as desired. [Means for solving the problem]

[0006] The joining fitting of the present invention is a joining fitting that is interposed between one workpiece and the other workpiece so that the two workpieces are joined in an abutting position, and is characterized in that it comprises a base that is attached to the one workpiece, a movable part that is attached to the other workpiece, and a rotating part that allows the movable part to rotate relative to the base, and the rotating part comprises a guide member that is provided on the base, and a guided part that is provided on the movable part and through which the guide member can be inserted. [Effects of the Invention]

[0007] The metal connector of the present invention can provide a metal connector that allows the attachment angle between pieces of wood to be changed as desired. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a connecting fitting according to a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 10 is an exploded perspective view showing an embodiment using a metal joint. [Figure 6] FIG. 10 is a side view showing an embodiment using a metal joint. [Figure 7] This is a plan view showing the state in which the beam is attached perpendicular to the column using connecting fittings. [Figure 8] This is a plan view showing the state in which the beam is attached to the column at an angle using a metal joint. [Figure 9] FIG. 10 is an explanatory diagram showing the use of a wooden building using the same metal joints. 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 content of the present invention as defined in the claims. Furthermore, not all of the configurations described below are necessarily essential requirements of the present invention. Example 1

[0010] 1 to 9 show a first embodiment of the present invention, and as shown in Fig. 1, a metal joint 1 of this embodiment comprises a base 2, a movable part 3, and a rotating part 4 that enables the movable part 3 to rotate relative to the base 2. In this embodiment, the top, bottom, left, and right of the metal joint 1 in Fig. 2 will be described as the top, bottom, left, and right of the metal joint 1.

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

[0012] A plurality of mounting holes 8 are formed in a vertical row on each of the left and right sides of the base body 5. The plurality of mounting holes 8 are formed in an uneven portion 8A formed by embossing or the like so as to protrude in a substantially semispherical shape from one surface 5A of the base body 5 toward the opposite surface 5B. Regarding the relationship between the mounting holes 8 and the uneven portion 8A, the uneven portion 8A may be formed in the location where the mounting holes 8 are formed, or conversely, the mounting holes 8 may be formed in the location where the uneven portion 8A is formed.

[0013] A plurality of positioning holes 9 are formed in a vertical row in the center of the base body 5. The diameter of the positioning holes 9 is larger than the diameter of the mounting holes 8. The positioning holes 9 are formed in a burring shape so that a cylindrical portion 9A protrudes 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 positioning guide.

[0014] In this embodiment, the rows of mounting holes 8 and the rows of positioning holes 9 are formed parallel to each other in the vertical direction, and the row of positioning holes 9 is located midway between the row of mounting holes 8 on the right side and the row of mounting holes 8 on the left side.

[0015] In the row of mounting holes 8 on the right side, the mounting holes 8 are spaced apart from one another at irregular intervals and are not arranged in a straight line, and the same is true for the row of mounting holes 8 on the left side.

[0016] The guide portion 6 is made of a pair of upper and lower metal round bars curved into semicircular rings. The guide portion 6 may be made of a plate material or a square material other than the round bars.

[0017] The right end of the upper guide portion 6A is fixed to the base body 5 by welding or the like, midway between the row of mounting holes 8 and the row of positioning holes 9 on the right side, and above the row of mounting holes 8 and the positioning holes 9, and the left end of the upper guide portion 6A is fixed to the base body 5 by welding or the like, midway between the row of mounting holes 8 and the row of positioning holes 9 on the left side, and above the row of mounting holes 8 and the positioning holes 9.

[0018] The right end of the lower guide portion 6B is fixed to the base body 5 by welding or the like, midway between the row of mounting holes 8 and the row of positioning holes 9 on the right side, and below the row of mounting holes 8 and the positioning holes 9, and the left end of the lower guide portion 6B is fixed to the base body 5 by welding or the like, midway between the row of mounting holes 8 and the row of positioning holes 9 on the left side, and below the row of mounting holes 8 and the positioning holes 9.

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

[0020] The movable part 3 is a metal plate formed into a rectangular shape, and is provided with through-holes 10A, 10B, through which the guide parts 6A, 6B can be inserted, at the top and bottom of the base end side, which is the side of the movable part 3 that is attached to the base part 2. The movable part 3 is rotatably attached to the base part 2 with the guide parts 6A, 6A inserted into the through-holes 10A, 10B, and is spaced apart from the positioning holes 9 and mounting holes 8 of the base main body 5, so that the movable part 3 does not interfere with the positioning work in the positioning holes 9 or the mounting work in the mounting holes 8.

[0021] The tip side of the movable part 3, which is opposite to the base end side, is provided with a notched locking groove 11 with an open top for positioning, and a plurality of mounting holes 12.

[0022] In addition, the center of the movable part 3 is provided with a hollowed-out part 13 that is cut out to avoid the through-holes 10A, 10B, the locking groove 11 and the mounting hole 12, which intentionally reduces the weight and strength of the movable part 3 and prevents cracking of the wood, as described below.

[0023] The rotating portion 3 is composed of guide portions 6A and 6B and through portions 10A and 10B.

[0024] To explain how to use the above-mentioned connecting fitting 1, first, the base 2 is temporarily fixed to one of the wooden pillars 14 using the positioning holes 9, and after adjusting the installation position of the base 2, the base 2 is fixed to the pillar using the mounting holes 8 with screws 15.

[0025] Next, we will explain how to fix the other piece of wood, the beam 16, to the column 14. An insertion groove 17 that penetrates vertically in the center of the tip of the beam 16 is previously provided, and a positioning and fixing member 18 consisting of a pin or bolt that is perpendicular to the insertion groove 17 is pressed 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 connector 1 from above, the positioning and fixing member 18 of the beam 16 is guided in advance into the locking groove 11 of the movable part 3. At this time, the positioning and fixing member 18 is smoothly guided into the fitting groove 17 along the slope of the locking groove 11. In this way, the positioning and fixing member 18 inserted into the fitting groove 17 engages with the locking groove 11 of the movable part 3, temporarily fixing the beam 16 to be erected on the column 14, and by inserting a fixing member 19 consisting of a pin or bolt driven into the beam 16 into the mounting hole 12, the column 14 and the beam 16 are connected via the connector 1.

[0027] In this case, the beam 16 fixed to the column 14 by the connecting fitting 1 is connected to the column 14 by the pivoting part 3 so that it can rotate freely relative to the column 14, and the angle of the beam 16 can be changed arbitrarily within a specified range as shown in Figures 7 and 8.

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

[0029] Furthermore, since the beam 16 is connected to the column 14 by the pivoting part 3 so as to be freely pivotable, the angle of the beam 16 can be changed as desired to suit the shape of the site.

[0030] Moreover, the metal connector 1 of this embodiment can also be used to fasten a beam 16 that is perpendicular to an ordinary pillar 14, as shown in FIG.

[0031] The structure of the metal joint 1 is a relatively simple and strong configuration in which the base 2 and the movable part 3 are connected by the rotating part 4, making it easy to manufacture, inexpensive, and also stable in terms of rotational movement.

[0032] Furthermore, as shown in Figure 5, a recess 14A into which the cylindrical portion 9A can be engaged is formed in advance in the pillar 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 portion for insertion during positioning, making it easy to position 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 drops due to the weight of the beam 16 as shown in Figure 6, the bent piece 7 does not hinder the operation of the movable part 3.

[0034] Furthermore, as shown in Figures 7 and 8, a recess 16A into which the bent piece 7 can engage is formed in advance in the beam 16, and by 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, making it easy to position the connecting fitting 1.

[0035] As described above, in this embodiment, the connecting fitting 1 is interposed between the wooden pieces 14, 16 so that one piece of wooden piece is joined to the other piece of wooden piece in an abutting position, and comprises a base 2 attached to the column 14, which is one of the pieces of wooden piece; a movable part 3 attached to the beam 16, which is the other piece of wooden piece; and a rotating part 4 that allows the movable part 3 to rotate relative to the base 2. The rotating part 4 comprises a guide member 6 attached to the base 2 and a through-hole 10 attached to the movable part 3 as a guided part through which the guide member 6 can be inserted.As a result, the beam 16 is connected to the column 14 by the rotating part 4 so that it can be rotated freely, and the angle of the beam 16 can be changed as desired to suit the shape of the site.

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

[0037] In addition, in this embodiment, the movable part 3 is provided in a state 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] In addition, in this embodiment, the base 2 is provided with an attachment hole 8, and the attachment hole 8 is formed in the uneven portion 8A as an attachment protrusion, thereby improving the shear stress near the attachment hole 8 and improving the strength of the base main body 5.

[0039] In addition, in this embodiment, the base 2 is provided with a positioning hole 9 for positioning, and the positioning hole 9 is formed in the cylindrical portion 9A as a positioning protrusion, making it possible to simplify the positioning of the connecting fitting 1.

[0040] In addition, in this embodiment, the base 2 is provided with a bent piece portion 7, and a gap C is provided between the movable part 3 and the bent piece portion 7, so that the connecting fitting 1 can be positioned without interfering with the operation of the movable part 3.

[0041] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention. For example, the metal connector of the present invention may be used to connect columns to columns or beams to beams. Furthermore, the metal connector may be used with the 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, etc. [Explanation of symbols]

[0042] 1. Joint fittings 2 base 3 Moving parts 4 Rotating part 6 Guide member 7 Bent piece 8 Mounting holes 8A Convex / convex part (mounting convex part) 9 Positioning holes 9A Cylindrical part (positioning protrusion) 10 Penetration part (guided part) 14 Pillar (one of the joined materials) 16 Beam (other joined material) C Clearance (spacing)

Claims

1. A metal fitting is interposed between one workpiece and the other workpiece so that the two workpieces are joined in an abutting position, a base portion attached to the one of the workpieces; a movable part attached to the other workpiece; a rotation unit that allows the movable unit to rotate relative to the base unit, The rotating portion is a guide member provided on the base; A metal joint comprising: a guided portion provided on the movable portion and through which the guide member can be inserted.

2. The guide member is formed by bending a rod-shaped body, 2. The metal joint according to claim 1, wherein the guided portion is a hole through which the guide member can be inserted.

3. 2. The metal joint according to claim 1, wherein the movable portion is spaced apart from the base portion via the rotating portion.

4. the base includes a mounting hole; 2. The metal joint according to claim 1, wherein the mounting hole is formed in a mounting projection.

5. The base includes a positioning hole for positioning, 2. The metal joint according to claim 1, wherein the positioning hole is formed in a positioning protrusion.

6. the base portion includes a bent piece; 2. The metal joint according to claim 1, wherein a gap is provided between the movable portion and the bent piece portion.

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