JP2016118085A5 - - Google Patents

Description

Metal fittings for wooden buildings

The present invention relates to a connecting hardware for a wooden building for connecting wooden structural members such as a base and a pillar and a pillar and a beam in a wooden building.

Conventionally, when connecting wooden structural members in wooden construction, various connecting hardwares are used to enable connection with excellent earthquake resistance and the like.

JP 2003-336321 A JP 11-269989 A JP-A-11-1966

In providing a connecting hardware for firmly connecting wooden structural members such as a base and a pillar, or a pillar and a beam in a wooden building, the connecting hardware 1 is, for example, as shown in FIG. The X-direction, the Y-direction, and the Z-direction orthogonal to each other are connected to the flat plate-like first fixing portion 2 and the cylindrical second fixing portion 3 in the X direction, and to the flat plate-like first fixing portion 2 in the Y direction. The first hole 4 is penetrated, and the second horizontal hole 5 penetrating in the Y direction and the second vertical hole 6 penetrating in the Z direction are penetrated through the cylindrical second fixing portion 3. Is preferred.

According to this, among the wooden structural members intersecting with each other, the flat plate-like first fixing portion 2 is inserted into the receiving groove formed at the end of one structural member, and the drift pin crossing the structural member is provided. It can be fixed by being inserted into the first hole 4 of the first fixing part 2, and the cylindrical second fixing part 3 is inserted into a receiving hole formed at an attachment point of the other structural member, and the structural member It is possible to fix by inserting a drift pin that traverses through the second horizontal hole 5 or the second vertical hole 6 of the second fixing part 3.

The reason why the second fixing portion 3 is formed in a cylindrical shape is to provide a second horizontal hole 5 and a second vertical hole 6 that intersect with each other, thereby depending on the crossing direction of the structural members to be connected. Thus, since the second horizontal hole 5 and the second vertical hole 6 can be selected, there is an advantage that the application range for the connection portion is widened.

By the way, such a connection hardware can propose the thing of a structure like the 1st reference example shown to FIG. 7 (A), for example. As shown in the figure, the connecting hardware 1 forms a first fixing portion 2 with a metal plate, and forms a second fixing portion 3 with a metal pipe. The end of the second fixing portion 3 is connected to the first fixing portion 2. It is fixed to the edge of the wire by welding.

However, as in the first reference example, forming the connecting hardware by welding and fixing a plurality of separate members may cause errors such as misalignment of the holes that must be arranged at mutually accurate positions. There is a risk in quality control. In addition, when a heavy load is applied in a mounting state in which the structural members are connected by the connecting hardware, the welded portion may be broken, and there is a problem in strength.

Therefore, as in the second reference example shown in FIG. 7B , a tongue piece 2a is projected from the edge of the first fixing portion 2 made of a metal plate, and the second fixing portion 3 made of a metal pipe is connected to the tongue. It is possible to propose a connecting metal fitting fixed by welding in a state of being fitted to the piece 2a.

According to the second reference example, it is easier to position the first fixing portion 2 and the second fixing portion 3 relative to each other than in the first reference example, and the first fixing portion 2 and the second fixing portion 3 are easy to position. There is an advantage that the connection can be reinforced by the tongue piece 2a.

However, it is difficult to completely prevent the positional deviation of the hole between the first fixing part 2 and the second fixing part 3, and moreover, between the first fixing part 2 and the second fixing part 3 due to an earthquake or the like. When a shearing force or the like is applied to the tongue piece 2a, the tongue piece 2a may be broken.

The present invention provides a connecting hardware for a wooden building that solves the above-mentioned problems, and as a means thereof, a flat plate is formed in the X direction with respect to the X, Y, and Z directions orthogonal to each other. The first fixing portion and the cylindrical second fixing portion are continuously provided, and the first hole penetrating in the Y direction is provided in the flat plate-like first fixing portion, and the cylindrical second fixing portion is provided in the Y direction. It is a connection hardware of a structural member in a wooden building formed by penetrating a second horizontal hole penetrating and a second vertical hole penetrating in the Z direction, and the connection hardware is formed by joining a pair of hardware components. And
The metal structure is composed of a flat plate portion formed symmetrically with respect to the folding line of the central connecting portion by a single metal plate, and a half-cylindrical half tube portion extending from an edge of the flat plate portion. And a connecting portion that continuously connects the flat plate portion and the semi-cylindrical portion, and the central connecting portion includes a bending connecting portion provided at the upper and lower ends of a slit formed at the folding line. It is bent along the folding line, and both side edges of the slit are matched, and the connecting part for bending is bent in a state of protruding from the both side edges, and is held in the palm via the bending. The flat plate-shaped first fixing portion is formed by the flat plate portions that are overlapped with each other in a pair of hardware components, and the cylindrical second fixing portion is formed by the half-cylindrical portions that are joined to each other. The reinforcing portion between the first fixing portion and the second fixing portion by the connecting portions joined to each other (18) is formed .

The continuous portion of the pair of hardware components preferably includes a tapered wall that gradually shallows the groove portion of the half tube portion from the half tube portion toward the flat plate portion.

According to this invention of Claim 1, a pair of metal structure 11A, 11B formed by the metal plate of 1 sheet is brought together via the bending of the center connection part 19 , and two flat plate part 12A, 12B, the first fixing part 12 is formed by superimposing 12B, and the cylindrical second fixing part 13 is formed by joining the half cylinder parts 13A and 13B. The slits 21 and the connecting portions 19a and 19a for bending located at the upper and lower ends of the slit 21 are formed, and the connecting portions 19a and 19a for bending are bent along the folding line U, thereby Since the both side edges 21a, 21a are matched and the connecting portions 19a, 19a for bending are bent in a state protruding from the both side edges 21a, 21a, the joints of the hardware components 11A, 11B by bending are formed. Easy In addition, the flat plate portions 12A and 12B are overlapped without a gap, and the opposing edges of the half-cylinder portions 13A and 13B are suitably abutted. As a result, the rigidity of the first fixing portion 12 that is two-layered without a gap is high, and the second lateral hole 15 and the second second hole 15 of the second fixing portion 13 with respect to the first hole 14 of the first fixing portion 12. It is possible to provide the connecting hardware 11 in which the vertical holes 16 are accurately formed.

In particular, the first fixing portion 12 and the second fixing portion 13 are integrally formed of a metal plate, and the reinforcing portion 18 is formed by positioning the connecting portions 18A and 18B between the two fixing portions 12 and 13 together. Therefore, there is no fear of shearing or breakage between the first fixing portion 12 and the second fixing portion 13 in a state where the intersecting structural members are connected by the connecting hardware 11, and the connecting hardware 11 having extremely excellent strength is obtained. Provided.

In this case, according to the second aspect of the present invention, the continuous arrangement including the tapered walls 20 and 20 that are continuous from the half cylinder portions 13A and 13B of the pair of hardware components 11A and 11B toward the flat plate portions 12A and 12B. Since the reinforcing portion 18 is formed by joining the portions 18A and 18B, the tapered wall 20 of the one continuous portion 18A is compressed in the direction in which the cylindrical second fixing portion 13 is bent, and the other Since the relationship that the taper wall 20 of the connecting portion 18B is extended is generated, both of them can prevent the reinforcement portion 18 from bending.

It is a perspective view which shows the example of a connection of the structural member in wooden construction, and the usage example of a connection metal fitting. It is a perspective view which shows the connection metal fitting which concerns on one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The manufacturing method of the connection metal fitting which concerns on one Embodiment of this invention is shown, (A) is a perspective view which shows the left-right symmetric metal structure formed by integrally forming a metal plate, (B) is left-right. It is a perspective view which shows the method of bending a symmetrical metal structure in a center connection part. The cross section of the metal fitting which concerns on one Embodiment of this invention is shown, (A) is a longitudinal cross-sectional view, (B) is a cross-sectional view, (C) is an expanded sectional view of the bent center connection part. . FIG. 6 is a perspective view showing a modified embodiment of the present invention. It is a perspective view which shows another deformation | transformation embodiment of this invention. The reference example as a comparative example with respect to this invention is shown, (A) is a perspective view which shows a 1st reference example, (B) is a perspective view which shows a 2nd reference example.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, the connecting metal fitting 11 has a flat plate-like first fixing portion 12 and a cylindrical second fixing portion 13 connected in the X direction with respect to the X, Y, and Z directions orthogonal to each other. A first hole 14 penetrating in the Y direction passes through the flat plate-like first fixing portion 12 and penetrates in the Z direction with a second horizontal hole 15 penetrating the cylindrical second fixing portion 13 in the Y direction. A second vertical hole 16 is provided.

In the case of the illustrated embodiment, the flat first fixing portion 12 has a plurality of (three in the illustrated example) first holes 14 arranged in the illustrated vertical direction (Z direction) and is positioned above and below the holes. Thus, the locking recess 17 is formed by cutting out the upper edge and the lower edge. The cylindrical second fixing portion 13 is composed of a plurality (two in the illustrated example) of cylindrical bodies that protrude in parallel with the X direction above and below the edge of the first fixing portion 12. In addition, the number of the 1st hole 14 and the number of the 2nd adhering parts 13 are not limited to a figure example, Each should just be at least 1 or more.

The connection hardware 11 is formed by joining a pair of hardware structures 11A and 11B in a palm-shaped state, and the hardware structures 11A and 11B are formed by a single metal plate bent as described later. The integrally formed flat plate portions 12A and 12B, half-cylindrical half tube portions 13A and 13B extending from the edge of the flat plate portion, and connecting portions 18A and 18B connecting the flat plate portion and the semi-cylindrical portion are provided. Forming. Therefore, the flat plate-like first fixing portion 12 is formed by superimposing the flat plate portions 12A, 12B of the pair of hardware components 11A, 11B, and the half cylinder portions 13A, 13B are mutually held together. By doing so, the cylindrical second fixing portion 13 is formed , and the reinforcing portions 18 between the first fixing portion 12 and the second fixing portion 13 are formed by mutually joining the connecting portions 18A and 18B. Has been .

As illustrated in FIG. 1, the connecting hardware 11 is used to mutually connect structural members such as a base and a pillar and a pillar and a beam in a wooden building.

For example, between the base 31 and the column 32, the connecting hardware 11 is used in a vertical posture, fixed to the column base of the column 32 with the flat plate-like first fixing portion 12 facing upward, and a cylindrical second fixing. Fixed to the base 31 with the portion 13 facing downward. The first fixing portion 12 is inserted into a receiving groove 36a formed on the lower end surface of the pillar 32, and is fixed by driving a drift pin 38a into a hole formed through the pillar 32 across the receiving groove 36a. The The second fixing portion 13 is inserted into a receiving hole 37a drilled in the base 31, and is fixed by driving a drift pin 38b into a hole formed through the base 31 across the receiving hole 37a. . In the case of the illustrated example, the drift pin 38 b is inserted through the second lateral hole 15 of the second fixing portion 13.

Between the base 31 and the large pull 33, the connecting hardware 11 is used in a horizontal posture. The flat first fixing portion 12 is inserted into a receiving groove 36b formed on the end face of the large pull 33, and is fixed by driving a drift pin 38c. The cylindrical second fixing portion 13 is inserted into a receiving hole 37b drilled in the side surface of the base 31, and is fixed by driving a drift pin 38d. In the case of the illustrated example, the drift pin 38 d is inserted through the second vertical hole 16 of the second fixing portion 13.

Between the column 32 and the beam 34, the connecting hardware 11 is used in a horizontal posture. The flat first fixing portion 12 is inserted into a receiving groove 36c formed on the end face of the beam 36, and is fixed by driving a drift pin 38e. If the preceding pin 39 is driven in advance in the receiving groove 36c, the connecting hardware 11 can be deposited by locking the locking recess 17 of the first fixing portion 12 to the preceding pin 39. The cylindrical second fixing portion 13 is inserted into a receiving hole 37c formed in the side surface of the column 32, and is fixed by driving a drift pin 38f. In the case of the illustrated example, the drift pin 38 f is inserted through the second lateral hole 15 of the second fixing portion 13.

Between the pillar head of the pillar 32 and the girder 35, the connecting hardware 11 is used in a vertical orientation, and is secured to the pillar head of the pillar 32 with the flat plate-like first fixing part 12 facing downward, and the cylindrical second fixing part. It is fixed to the large beam 35 with 13 facing upward. The first fixing portion 12 is inserted into the receiving groove 36d formed on the upper end surface of the column 32, and is fixed by driving a drift pin 38g. The second fixing portion 13 is inserted into a receiving hole 37d formed in the lower surface of the large beam 35, and is fixed by driving a drift pin 38h. In the case of the illustrated example, the drift pin 38 h is inserted through the second lateral hole 15 of the second fixing portion 13.

As described above, the connection hardware 11 is provided with the second horizontal hole 15 and the second vertical hole 16 at which the second fixing portion 13 intersects with each other. The horizontal hole 15 and the second vertical hole 16 can be selected, and even when the driving direction of the drift pin is different, there is an advantage that it can be freely applied by selecting the holes 15 and 16.

In a preferred embodiment of the present invention, as shown in FIG. 3 (A), the connection hardware 11 is formed by integrally forming a single metal plate so that a pair of hardware on the left and right of the central connection portion 19 of the metal plate. Manufactured based on a semi-finished product 10 in which the structures 11A and 11B are formed symmetrically. In such a semi-finished product 10, the flat plate portions 12 </ b> A and 12 </ b> B are formed by contouring a single metal plate by cutting or the like, and the semi-cylindrical portions 13 </ b> A and 13 </ b> B are formed by pressing.

At this time, one-side first holes 14A and 14B for forming the first hole 14 are formed in the flat plate portions 12A and 12B. In addition, the semi-cylindrical portions 13A and 13B are formed with one-side second horizontal holes 15A and 15B for configuring the second horizontal hole 15, and semicircular holes 16A for configuring the second vertical hole 16, 16B is formed.

During the pressing, tapered portions 20 are formed on the connecting portions 18A and 18B of the hardware components 11A and 11B so as to gradually shallow the groove portions of the half tube portions from the half tube portions 13A and 13B toward the flat plate portions 12A and 12B. It is preferable to do.

Therefore, as shown in FIG. 3B, a pair of hardware components 11 </ b> A formed symmetrically with respect to the folding line U by bending the central connecting portion 19 along the folding line U. 11B, thereby providing the connecting hardware 11 as shown in FIG. At this time, the central connecting portion 19 is formed with slits 21 along the folding line U, leaving the bending connecting portions 19a, and the bending connecting portions 19a, 19a located at the upper and lower ends of the slits 21 are formed. Is bent. Therefore , this makes it easy to join the hardware components 11A and 11B by bending. As shown in FIG. 4, in a state where the bending connecting portions 19a, 19a are bent, both side edges 21a, 21a of the slit 21 are matched and are bent in a state protruding from the both side edges 21a, 21a. As shown in the figure, the connecting portions 19a and 19a are bent so that the flat plate portions 12A and 12B are overlapped without any gap, and the opposing edges of the half tube portions 13A and 13B are suitably abutted .

Thus, by joining the pair of metal components 11A and 11B through the bending of the connecting portions 19a and 19a for bending, the two flat plate portions 12A and 12B that are overlapped with no gap between each other have strong rigidity. The first fixing portions 12 having the first and second holes 14A and 14B, which are matched with each other, provide the first holes 14 with high strength.

Moreover, the half cylinder parts 13A and 13B joined by abutting edges facing each other form a cylindrical second fixing part 13. At this time, the second lateral hole 15 is formed at an accurate position so that the second lateral hole 15A, 15B on one side faces the predetermined direction at the predetermined position. Further, the semicircular holes 16A and 16B are joined to face each other, so that the second vertical hole 16 is formed at an accurate position so as to go in a predetermined direction at a predetermined position.

Further, the continuous portions 18A and 18B provided with the tapered wall 20 are joined to each other, thereby forming a high-strength reinforcing portion 18 in the vertical and horizontal directions.

The connecting hardware 11 according to the present invention can suitably support loads and loads acting on the top, bottom, left, and right in a state where crossing portions of structural members in a wooden building are connected. As shown in FIG. 4A, the first fixing portion 12 and the second fixing portion 13 receive a load in directions Z1 and Z2 opposite to each other with respect to the Z direction, or as shown in FIG. 4B. In addition, when a load is applied in directions Y1 and Y2 opposite to each other with respect to the Y direction, a shearing force acts on the region S of the connecting portion of both the fixing portions 12 and 13, but the reinforcing portion 18 is formed in the connecting portion. So that it can withstand strong.

With respect to the Z direction shown in FIG. 4 (A), the reinforcing portion 18 is formed by jointing the connecting portions 18A and 18B of the two metal components 11A and 11B which are stacked, so that two loads are applied. It can be mitigated by dispersing in the continuous portions 18A and 18B, and even if one continuous portion breaks, the other continuous portion remains so that the connected state of the structural members is maintained. Therefore, the collapse of the building is prevented.

With respect to the Y direction shown in FIG. 4B, the second fixing portion 13 joins the edges of the semi-cylindrical portions 13A and 13B to each other, and also joins the tapered walls 20 and 20 of the connecting portions 18A and 18B. Since the reinforcement part 18 is formed by this, it has high intensity | strength with respect to a bending direction. When a force in the Y1 direction shown in the figure is applied, the tapered wall 20 of one connecting portion 18A is compressed and the tapered wall 20 of the other connecting portion 18B is expanded. It can endure without causing 18 bending in the Y1 direction.

FIG. 5 shows a connecting hardware 11 according to a modified embodiment of the present invention, and FIG. 6 shows a connecting hardware 11 according to still another modified embodiment. As is apparent from these modified embodiments, the connecting hardware 11 of the present invention arbitrarily changes the size and shape and the number of cylindrical second fixing portions 13 according to the size of the structural member to be connected. Is possible. Further, regarding these modified embodiments, as shown in FIGS. 5 (B) and 6 (B), when the connecting hardware 11 having the same configuration is used by being inverted, the cylindrical second fixings facing each other are used. You may comprise so that the 2nd adhering part 13 may be deviated with respect to the vertical center position C of the 1st adhering part 12 so that the part 13 may not be arrange | positioned coaxially.

Further, although not shown in the drawings, the connecting hardware 11 of the present invention is configured so that it can be used between the column and the oblique beam, so that the first fixing portion 12 and the second fixing portion 12 connected in the X direction shown in FIG. The fixing portions 13 may be refracted by a predetermined angle toward each other in the Y direction. In this case, when the connecting hardware 11 is completed by forming the connecting portions 18A and 18B of the pair of metal structural bodies 11A and 11B so as to have a predetermined angle at the time of press molding and holding the joints, they are refracted in the Y direction. What is necessary is just to comprise so that the said reinforcement part 18 may be formed when the connection parts 18A and 18B mutually correspond.

DESCRIPTION OF SYMBOLS 10 Semifinished product 11 Connection hardware 11A, 11B Metal structure 12 Flat 1st adhering part 12A, 12B Flat plate 13 Cylindrical 2nd adhering part 13A, 13B Semi-cylinder part 14 1st hole 14A, 14B One side 1st hole 15 2nd horizontal hole 15A, 15B Single side 2nd horizontal hole 16 2nd vertical hole 16A, 16B Single side 2nd vertical hole 17 Locking recessed part 17A, 17B Single side locking recessed part 18 Reinforcement part 18A, 18B Connection part 19 Central connection part 19a Bending portion 20 Tapered wall 21 Slit 31 Base 32 Column 33 Large pull 34 Beam 35 Large beams 36a, 36b, 36c, 36d Receiving grooves 37a, 37b, 37c, 37d Receiving holes 38a, 38b, 38c, 38d, 38e, 38f, 38g, 38h Drift pin 39 Leading pin

Claims (2)

With respect to the X, Y, and Z directions orthogonal to each other, a flat plate-like first fixing portion (12) and a cylindrical second fixing portion (13) are connected in the X direction so as to form a flat plate-like first fixing portion. A first hole (14) penetrating in the Y direction is provided through the second horizontal hole (15) penetrating in the Y direction and a second vertical hole (16) penetrating in the Z direction. ) Is a connecting hardware of structural members in wooden construction,
The connecting hardware (11) is formed by joining a pair of hardware components (11A, 11B),
The metal component (11A, 11B) includes a flat plate portion (12A, 12B) formed by a single metal plate in a symmetrical shape with respect to the folding line (U) of the central connecting portion (19) , half cylindrical semicylindrical portion extending from the edge of the plate portion and (13A, 13B), provided with a connecting portion for continuously arranged (18A, 18B) of said plate and the semi-cylindrical portion,
The central connecting portion (19) includes the folding connecting portions (19a, 19a) provided at the upper and lower ends of the slit (21) formed at the folding line (U). Is bent along the two sides of the slit (21a, 21a), and is bent from the side edges of the slit (19a, 19a) is bent,
The flat plate-like first fixing portion (12) is formed by the flat plate portions (12A, 12B) that are superposed on each other in a pair of hardware components (11A, 11B) that are held together by bending. The cylindrical second fixing portion (13) is formed by the half-cylinder portions (13A, 13B) joined to each other, and the connecting portions (18A, 18B) joined to each other form the first A connecting hardware for a wooden building, characterized in that a reinforcing part (18) is formed between the first fixing part (12) and the second fixing part (13). The connecting portions (18A, 18B) of the pair of hardware components (11A, 11B) are formed so that the groove portions of the half tube portions gradually move from the half tube portions (13A, 13B) toward the flat plate portions (12A, 12B). 2. A metal fitting for wooden construction according to claim 1, characterized in that it comprises a tapered wall (20) for shallowing.

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