JP2005273386A - Metal fitting for wooden building connection - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal fitting for wooden building connection capable of generating a force pulling a horizontal member near to a vertical member side. <P>SOLUTION: The metal fitting for wooden building connection for connecting the horizontal member to the vertical member has a basic metal fitting secured to the side of the vertical member and an accessory metal fitting secured to the end face side of the horizontal member. An accommodation groove is formed in the end face of the horizontal member vertically. A lug screw is screwed into the horizontal member from the inner part of the accommodation groove. The accessory metal fitting is a T-shaped block secured to the lug screw and has a second rail placed in the inner part of the accommodation groove, and an interlocking piece extended right and left from the vertical member side of the second rail. The basic metal fitting fastens the T-shaped first block, two U-shaped side plates and a bottom plate with a screw to form them into a bottomed cylinder into which the interlocking piece is dropped, and a guide groove into which the second rail is slidingly dropped is formed in the side opposite to the vertical member. The accessory metal fitting with the horizontal member is dropped from above the basic metal fitting with the vertical member to form a gap between the interlocking piece and an interlocked piece, and when a wedge is driven in the gap, the interlocking piece is relatively pulled near to the vertical member side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connecting hardware for a wooden building that connects vertical members (columns, beams, girders, etc.) and cross members (beams, girders, etc.).

The connecting hardware for wooden construction that connects the vertical and cross members is to fix the connecting hardware to the pillar in advance, and drop the beam into the connecting hardware, so that the connecting hardware can be inserted into the slit in the end face of the beam. It is known that a joining plate is inserted and a fastener that is driven into the beam is hooked into a U-shaped receiving hole of the joining plate.
JP 10-33260 A

  In addition, the above-mentioned connecting hardware finally connects the beam to the column by passing the bolt from the side of the beam into the hole in the joint plate of the connecting hardware fixed to the column, but it is only passed through the bolt. Therefore, there is almost no force to attract the beam to the column side. Therefore, in order to improve the connection strength, it is desirable to generate a force that attracts the beam (cross member) to the column (vertical member) side.

  The present invention has been developed in view of the above circumstances, and an object of the present invention is to provide a wooden construction connecting hardware capable of generating a force to draw a cross member toward the vertical member side.

  The present invention is a connecting metal fitting for a wooden building that is accommodated in a butt portion between a side surface of a vertical member and an end surface of a horizontal member, and connects the vertical member and the horizontal member, and is a basic hardware fixed to the side surface of the vertical member; Suppose that it consists of an attachment fixed to the end face side of the cross member.

  In the first aspect of the present invention, the transverse member is formed with a housing groove in the vertical direction in the central portion of the end face width, and a lag screw is screwed into the transverse member from the back of the housing groove. A T-shaped block in a plan view that is housed in the back of the housing and screwed to the lag screw, and is arranged in the center of the lateral width behind the housing groove, and left and right from the vertical member side of the second rail. The basic hardware consists of a T-shaped first block that is fixed to the vertical member in a plan view, two U-shaped side plates, and a bottom plate that are screwed together to integrate them. It is formed in the bottomed cylindrical shape to drop the locking piece, and the guide groove into which the second rail is slid down is formed on the anti-vertical material side, and the first block is arranged at the center of the width of the vertical material. From one rail and a stop piece that extends from the first rail to the left and right sides The side plate covers the side of the stopper piece and extends to the side opposite to the longitudinal direction from the stopper piece, a protruding piece that is continuous with one end of the side piece and covers the longitudinal member side of the stopper piece, It consists of a locked piece that continues to the other end of the side piece and extends to the side of the guide groove. From the top of the basic hardware attached to the vertical member, the accessory attached to the cross member is dropped along the guide groove. In this case, a gap is formed between the locking piece and the locked piece, and the locking piece is relatively pulled toward the longitudinal member by driving a wedge into the gap.

  It does not matter whether a gap is formed between the locking piece of the basic hardware and the locking piece of the accessory hardware when the wedge is driven. When the wedge driving becomes loose and play occurs, the rattling can be eliminated by the gap by driving a larger wedge. Further, when the wedge is driven, the stopper piece and the locking piece may simply be in close contact with each other, but if the stopper piece and the locking piece are partially meshed, they are connected so as to be immovable in the vertical direction. The For this purpose, as in the invention of claim 2, one of the convex portion and the concave portion into which the convex portion fits is formed as a stop piece of a basic hardware, and the other is formed as a lock piece of an accessory hardware. It is desirable that when the wedge is driven into the gap between the stopper pieces, the concave portion and the convex portion are fitted when the locking piece is relatively pulled toward the longitudinal member.

  According to the first aspect of the present invention, when the basic hardware is assembled into a bottomed cylindrical shape, it is only necessary to screw the first block, the side plate, and the bottom plate, so that the operation is simple. Further, when connecting the vertical member and the cross member, it is only necessary to drop the attached hardware with the cross member onto the basic metal member attached to the vertical member and drive the wedge, so that the connecting operation is also easy. Furthermore, by driving the wedge into the gap, the locking piece is pulled closer to the longitudinal member side, so that the end face of the transverse member is pressed against the side of the longitudinal member and the connection strength between the longitudinal member and the transverse member is improved by the connecting hardware. To do.

  According to the second aspect of the present invention, the concave portion and the convex portion mesh with each other so that the basic hardware and the accessory hardware are connected so as not to move up and down.

  As shown in FIG. 1, the first example of the connecting hardware for wooden construction of the present invention comprises a basic hardware 2 fixed to the side surface of the longitudinal member 1 and an accessory hardware 4 accommodated in the end surface of the cross member 3.

  As shown in FIG. 4 (c) and FIG. 7 (a), the vertical member 1 for bolting the basic hardware 2 has a through hole 5 for bolting on the side surface, and the opposite side of the through hole 5 is counterbored. As 6.

  As shown in FIGS. 1 to 3, the basic hardware 2 includes a first block 7 having a T-shape in a plan view that is screwed to the side surface of the longitudinal member 1 with a bolt, two U-shaped side plates 8, and a bottom plate 9. And the top plate 10. Then, the first block 7, the two side plates 8 and the bottom plate 9 are screwed together to form a bottomed cylindrical shape, and the guide groove 11 into which the accessory hardware 4 is dropped is provided at the center of the width on the anti-vertical material side. Are formed along the top and bottom. In addition, after dropping the accessory hardware 4 into the bottomed cylindrical shape, the top plate 10 is screwed to the first block 7, and the top plate 10 and the bottom plate 9 are also screwed to the accessory hardware 4.

  The first block 7 includes a first rail 12 disposed in the central portion of the horizontal width of the vertical member 1 and a stop piece 13 extending left and right from the side opposite to the vertical material of the first rail 12. The stopper piece 13 has a plurality of through holes 14 formed in a counterbore shape on the side of the anti-vertical material, and a bolt is screwed into the through hole 5 of the vertical member from the counterbore hole 14 and is fastened with a nut. Further, the stopper piece 13 is provided with an engaging convex portion 15 on the side surface of the anti-vertical material, and a through hole 16 for screwing the side plate 8 is formed on the side surface. Furthermore, screw holes 17 and 18 for screwing the top plate 10 and the bottom plate 9 are formed above and below the stop piece 13.

  The two side plates 8 cover the side of the stop piece 13 and extend to the side opposite to the vertical piece side of the stop piece 13, and are connected to one end of the side piece 19 and are connected to the vertical piece side of the stop piece 13. And a latched piece 21 that is continuous with the other end of the side piece 19 and extends to the side of the guide groove 11 as a whole. The to-be-latched piece 21 is formed in the inclined surface which approaches a longitudinal member side as it goes down the inner surface (anti-vertical material side surface) (In FIG. 1, the front-back width of the upper side and lower side of the to-be-latched piece 21 differs. (This is highlighted by a dimension line). Further, at the position corresponding to the through-hole 16 on the side surface of the stopper piece 13, a worm-like punching hole 22 is formed in one side plate 8, and a screw hole 23 is formed in the other side plate 8, and two screws are fixed by screwing. The side plates 8 and the first block 7 are integrated.

  Holes 24 are formed in the bottom plate 9 and the top plate 10, and screws are inserted into the upper and lower screw holes 17 and 18 of the first block 7 and the upper and lower screw holes 25 and 26 of the accessory 4 from the hole 24.

  As shown in FIGS. 1, 4, and 7, the cross member 3 that holds the accessory 4 is formed with a housing groove 27 penetrating vertically in the center portion of the lateral width of the end surface. Further, an embedding hole 28 for a lag screw is formed in the center of the lateral width direction at the bottom of the accommodation groove 27. The receiving groove 27, the embedding hole 28 and the various holes of the longitudinal member 1 can be easily formed with a cutting tool of a circular saw or a drill.

  As shown in FIGS. 1, 5, and 8, the accessory 4 is a T-shaped block in plan view, and includes a second rail 29 disposed in the center of the lateral width at the back of the housing groove 27, and a second rail 29. And a locking piece 30 extending left and right from the vertical member side. The second rail 29 is provided with the above-described top plate and bottom plate screw holes 25 and 26 on the upper and lower sides thereof, and a concave portion 31 that engages with the convex portion 15 is provided on the side surface of the vertical member, and a counterbore shape is formed at another location. Are drilled, and bolts are screwed and stopped from the counterbore-shaped hole 32 toward the lag screw 33 screwed into the embedding hole 28 of the cross member 3. As shown in FIG. 4 (d), the lag screw 33 has a male screw formed on the outer side and a female screw formed on the inner side, and is fixed with a temporary bolt screwed into the female screw. It attaches to a tool, the lag screw 33 is embedded in the embedding hole 28 of the cross member 3, and a temporary bolt is removed after that.

  In addition, the fastener which consists of a volt | bolt or a screw mentioned above can accommodate a head in each component by using what inserts a tool in a head (thing with a hexagonal hole or a cross hole).

  The above-mentioned connecting hardware is used as follows. First, as shown in FIGS. 1, 4 (b) and (b) for the basic hardware 2, the first block 7 and the two side plates 8 are screwed together, and the bottom plate 9 is screwed to the bottom of the first block 7. Thus, it is integrated into a bottomed cylindrical shape with a guide groove 11 on the anti-vertical material side. Subsequently, as shown in FIGS. 1, 4 (c) and 4 (d), the base hardware 2 assembled in a bottomed cylindrical shape is fastened with a nut to the vertical member 1 through a bolt from the guide groove 11 side. In FIG. 4C, since the lateral width of the guide groove 11 is narrower than the head of the bolt, notches 34 through which the bolt head passes are provided on both sides of the guide groove 11. Further, when the lag screw 33 is screwed into the embedding hole 28 of the cross member 3 and the accessory metal 4 is bolted to the lag screw 33, the accessory metal is provided at the center of the width of the receiving groove 27 as shown in FIG. 4 is arranged so that the locking piece 30 is separated from the bottom of the receiving groove 27, and the accessory 4 can be dropped into the basic hardware 2 using the distance.

  Subsequently, as shown in FIGS. 2 (a) and 7 (a), in order to connect the cross member 3 between the two vertical members 1, the vertical member 1 with the basic hardware 2 is slightly inclined outward. Then, the accessory hardware 4 attached to the cross member 3 is arranged right above the basic hardware 2 and lowered along the guide groove 11. At this time, depending on the inclination of the longitudinal member 1, the attachment hardware 4 falls into the basic hardware 2 such that the engagement piece 30 slides on the inclined inner surface of the engagement piece 21. Then, as shown in FIGS. 2 (B), 5 (B), and 7 (B), the accessory 4 is placed on the bottom plate 9, and the concave portion 31 and the convex portion 15 face each other. A gap 35 having a triangular shape in side view is formed between the stopper piece 30 and the locked piece 21, and there is a slight gap 36 between the side surface of the longitudinal member 1 and the end surface of the transverse member 3. It becomes a state where only rattling occurs. Then, when the wedge 37 is driven once into the gap 35 that is triangular when viewed from the side, the wedge 37 is smoothly press-fitted along the inclination of the locked piece 21, and FIGS. 3 (a), 5 (c), FIG. As shown in FIG. 8 (a), the cross member 3 is relatively pulled toward the vertical member 1 side and the backlash is eliminated, and the end surface of the cross member 3 is pressed against the side surface of the vertical member 1 to be firmly connected, The concave portion 31 and the convex portion 15 mesh with each other so that the accessory hardware 4 and the basic hardware 2 are connected so as not to move up and down. Finally, as shown in FIGS. 3 (a), 6 (a), and 8 (a), when the top plate 10 is screwed onto the first block 7 and the attached hardware 4 of the basic hardware 2, (B), FIG. 6 (B), and FIG. 8 (B), the basic hardware 2 and the accessory hardware 4 are firmly integrated. Further, since the basic hardware 2 and the accessory hardware 4 are accommodated in the longitudinal member 1 and the transverse member 3, the appearance is improved.

  The present invention is not limited to the above embodiment. For example, the method of fixing the first block to the longitudinal member is not limited to the structure in which the bolt is bolted directly to the longitudinal member, but other structures, for example, another lag screw is screwed into the longitudinal member, and the end surface of the lag screw A structure in which the first block is screwed into the female screw hole may be used.

It is a perspective view which shows the initial stage of the use procedure of the connection hardware for wooden buildings of this invention. (A) (B) is a perspective view showing the first half part of the procedure for using the connecting hardware for wooden construction. (A) and (B) are perspective views showing the latter half of the procedure for using the connecting hardware for wooden construction. (A), (b), (c), and (d) are plan views showing the first half of the procedure for using the connecting hardware. (A), (b), and (c) are plan views showing an intermediate part of the procedure for using the connecting hardware. (A) (b) is a top view which shows the latter half part of the use procedure of a connection metal fitting. (A) (B) The figure is a side view showing the first half of the procedure for using the connecting hardware. (A) (B) The figure is a side view showing the latter half of the procedure for using the connection hardware.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Longitudinal material 2 Basic hardware 3 Horizontal material 4 Attached hardware 7 1st block 8 Side plate 9 Bottom plate 11 Guide groove 12 First rail 13 Stopping piece 15 Protruding part 19 Side piece 20 Protruding piece 21 Locked piece 27 Housing groove 29 First Two rails 30 Locking piece 31 Recess 33 Lag screw 35 Clearance 37 Wedge

Claims (2)

It is housed in a butt portion between the side surface of the vertical member (1) and the end surface of the horizontal member (3), and is a connecting hardware for a wooden building that connects the vertical member (1) and the horizontal member (3),
It consists of a basic hardware (2) that is fixed to the side of the vertical member (1) and an accessory hardware (4) that is fixed to the end surface of the horizontal member (3).
In the cross member (3), a housing groove (27) is formed along the top and bottom at the center of the lateral width of the end face, and a lag screw (33) is screwed into the cross member from the back of the housing groove (27),
The accessory hardware (4) is a T-shaped block in plan view that is housed in the back of the housing groove (27) and is screwed to the lag screw (33), and is located in the center of the lateral width behind the housing groove (27). The second rail (29) disposed in the portion, and a locking piece (30) extending left and right from the longitudinal member side of the second rail (29),
The basic hardware (2) is integrated by screwing a first block (7) having a T-shape in a plan view, two U-shaped side plates (8), and a bottom plate (9), which are fastened to a vertical member. By forming a bottomed cylinder into which the locking piece (30) is dropped, and a guide groove (11) into which the second rail (29) is slid down is formed on the anti-vertical material side,
The first block (7) is composed of a first rail (12) disposed at the center of the width of the longitudinal member (1) and a stopper piece (13) extending from the opposite side of the first rail (12) to the left and right. Become
The side plate (8) is continuous with the side piece (19) which covers the side of the stop piece (13) and extends to the side opposite to the longitudinal member from the stop piece (13), and one end of the side piece (19). From the protruding piece (20) that covers the vertical member side of the stopper piece (13), and the locked piece (21) that continues to the other end of the side piece (19) and extends to the side of the guide groove (11). Become
When the accessory (4) attached to the transverse member (3) is dropped along the guide groove (11) from above the basic hardware (2) attached to the longitudinal member (1), the locking piece (30) A gap (35) is formed between the locking piece (21) and the wedge (37) is driven into the gap (35) so that the locking piece (30) is relatively pulled toward the longitudinal member side. Characterized wooden construction hardware.   Of the convex portion (15) and the concave portion (31) into which the convex portion (15) fits, one is used as the stopper piece (13) of the basic hardware (2), and the other is used as the locking piece (30) of the accessory hardware (4). When the wedge (37) is driven into the gap (35) between the locking piece (30) and the locked piece (21), the locking piece (30) is relatively pulled toward the longitudinal member side. The wooden fitting for metal construction according to claim 1, wherein the concave portion (31) and the convex portion (15) are fitted together.

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