JP4088579B2 - Metal fittings for wooden building components - Google Patents

Description

  The present invention relates to a metal fitting for connecting horizontal members (beams, girders, foundations, etc.) to main members (columns, horizontal members such as beams, girders, trunks, etc.) in wooden buildings.

As a connecting member of a wooden building member, one formed by a support plate and two joining plates in a U-shape in plan view is known (see, for example, Patent Document 1). The support plate is in contact with the side surface of the main member and fixed with bolts, and the joining plate is inserted into a slit formed at the end of the horizontal member, and a drift pin is driven in from the side and fixed.
JP-A-10-33260 (first page, FIG. 1)

  Since it is cumbersome to attach the connecting fittings one by one to the main member at the construction site, they are attached in advance to a pillar or the like in a wood precut factory. If it does so, when conveying a pillar etc. from a factory to a construction site, since the joining board of metal fittings jumped out from a pillar etc., there was a problem that a load volume increased and transportation cost increased. In addition, when the height of the beam to be joined is increased, the height of the joining plate of the metal fitting must be increased. However, since the metal fitting is formed by bending a single iron plate, the support plate and the joining plate are integrated. Therefore, many kinds of metal fittings had to be manufactured according to the size of the beam, which was expensive. In order to prevent the metal support plate from coming out of contact with the main trunk member, a round boss-shaped protrusion is extruded by a press machine, but there are many to accurately process this protrusion. Cost and effort.

Furthermore, the connecting metal fitting has the following inconvenience because the supporting plate fixed to the main member and the joining plate attached to the horizontal member are integrated.
As described above, the connecting bracket cannot be installed across the trunk member that separates the connecting bracket in the vertical direction because it is attached to the trunk member in advance at the factory. For example, in the case where the end face of a tall beam is abutted and joined from the side to the place where the column and the torso are connected, the connecting bracket cannot be installed across the column and the torso, In addition, it is not preferable from the viewpoint of connection strength to install the two connecting brackets separately for the column and the torso, so that the torso height of the torso is the same as that of the beam and an integrated connecting bracket is used. . However, since the torso is received by a pillar in the middle, there is no problem in strength even if wood whose height is lower than the beam is used. In other words, in conventional brackets, the end face of a horizontal member with a high height cannot be brought into contact with and connected to the side surface of a horizontal member with a low height. In order to make the metal fittings easier to use, some economics were sacrificed.
In addition, in the latest CAD / CAM system for wooden buildings, information on connecting fittings is input, and when drawing the assembly drawing of the frame, which connecting fitting is used for each member, which attachment for each member This makes it possible to automatically perform uniform drilling on each member. However, depending on the individual wooden building, the thickness of the tatami on the floor may be different, or the floor may be a flooring floor. It is not easy to prepare software so that the hole position can be automatically changed one by one in response to such a design change, and it has been complicated to perform the hole processing manually.

  The present invention has been made in view of the above-described circumstances, and when carrying wood from a factory to a construction site, the joining plate does not get in the way, can be easily produced at low cost, and the workability of the wooden frame The purpose is to provide metal fittings for wooden building components that contribute to improved economic efficiency.

  In order to achieve the above-mentioned problem, the connecting metal fitting according to the invention described in claim 1 is a shaft embedded in a shape in which an end protrudes from a main member, a joining plate inserted into a slit formed in an end of the horizontal member, And a fixing pin for fixing the joining plate to the shaft. The joining plate is inserted into a slit formed at an end portion of the shaft, penetrates the fixing pin from the side, and is fixed to the shaft. Usually, two shafts are used in the upper and lower sides to hold one joining plate, but one shaft may be used depending on the size of the horizontal member. The joining plate can be provided not only on one end side of the shaft but also on both sides. It is necessary to fix the shaft to the main member and the joining plate to the horizontal member, but it does not matter what structure is used.

  The invention according to claim 2 is characterized in that a plurality of insertion holes for fixing pins are provided in the joining plate at intervals in the vertical direction so that the attachment height of the joining plate to the shaft can be changed.

  The invention described in claim 3 is characterized in that the shaft is provided with a fixed portion of a connecting body embedded in the main trunk member in order to connect the main trunk members to each other. As the coupling body, for example, a hozo pipe can be considered.

  The connecting metal fitting according to the first aspect of the present invention is divided into a shaft embedded in the main trunk member and a joining plate inserted into the slit at the end of the horizontal member, and the joining plate has an edge at the shaft. It can be easily installed by inserting it into the slit at the end and passing through the fixing pin. Therefore, if the shaft is only attached to the main member in advance at the factory, and the joining plate is attached after being brought into the construction site, it is convenient that the joining plate does not get in the way when the main member is carried. Further, since the shaft can be easily attached to the main member, the shaft may be attached at the construction site. Furthermore, by combining joining plates of different sizes and shapes on the same shaft, it is possible to easily construct various types of connecting fittings corresponding to each member connecting portion of the wooden building. The shaft can be manufactured simply by applying a simple process to the round bar, and the joining plate is a single plate that does not require bending or pressing, so it can be provided at low cost. Furthermore, this connecting bracket can install multiple shafts on separate main members and install a joining plate across the shafts. There is no need to make them common, so that the dimensions of each member can be brought into an optimum state in consideration of strength and economy. Moreover, the upper and lower main trunk members and the horizontal member can be integrated by installing the joining plate so as to straddle the shaft.

  According to the second aspect of the present invention, the height at which the shaft is attached to the main member is fixed, and only the joining plate can be moved up and down, whereby the drift pin insertion hole opened in the horizontal member such as a beam The height of the horizontal member can be changed with the position of the hole being fixed.

  According to invention of Claim 3, when connecting a horizontal member further to the part which several main trunk members connect, it is convenient.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a connecting member for a wooden building member according to the present invention, in which an end face of a beam 4 is joined to a side face of a pillar 1 in an exploded state. FIG. 2 is a cross-sectional view of the periphery of the metal fitting showing the usage state of the connection metal fitting. This connecting metal fitting is inserted into the pillar 1 in the horizontal direction and fixed with two pins 3 and 3 and a single joining plate 6 inserted into and fixed to the slit 5 formed at the end of the beam 4. And two fixing pins 7 and 7 for fixing the joining plate 6 to the shaft 3.

  The shaft 3 is formed by cutting a metal round bar, and is inserted horizontally in such a manner that an end protrudes from the center of the column 1 in the width direction, and is fixed to the column 1 by driving a pin 12 from the side. . A vertical slit 8 is formed at the end of the shaft 3, and the side edge of the joining plate 6 on the column 1 side is fitted into the slit 8, and penetrates the shaft 3 and the joining plate 6 from the side. Then, the joining plate 6 is mounted across the upper and lower shafts 3 and 3 by driving the fixing pin 7. The fixing pin 7 is chamfered on the tip side, and is provided with a flange on the end side so as to be caught in the hole of the shaft. The distal end portion of the shaft 3 is cut and thinned on both sides so that the fixing pin 7 does not protrude from the width of the shaft 3.

  The joining plate 6 is formed by cutting a thick iron plate with a laser processing machine or the like. The joining plate 6 has a fixing pin insertion hole 9 at the side edge on the column 1 side, and a drift pin insertion at the side edge on the beam 4 side. It has a hole 13, and has hook portions 15 for drift pins 14 a at the upper edge and the lower edge. A plurality of fixed pin insertion holes 9 are formed at intervals in the vertical direction, and by selectively using these holes, only the height of the joining plate 6 is changed without changing the height of the shaft 3. be able to. A plurality of drift pin insertion holes 13 are also formed at intervals in the vertical direction, and by selectively using these holes, only the height of the beam 4 is changed without changing the height of the joining plate 6. You can also. The beam 4 is processed with a slit 5 into which the joining plate 6 is inserted, a recess 16 in which the tip of the shaft 3 is accommodated, and a drift pin insertion hole 17. The fixed pin insertion hole 9 and the drift pin insertion hole 13 are provided in a vertically symmetric arrangement, and the height position of each hole can be changed by attaching the joining plate upside down to the shaft 3. .

  Explaining how to use the connecting metal fitting, only the shaft 3 is attached to the pillar 1 in a wood factory, the pillar 1 is carried into the construction site, and then the joining plate 6 is attached to the shaft 3. After that, as in the case of the conventional connecting bracket, the joint plate 6 is inserted into the slit 5 of the beam while lowering the beam 4 from above the joint plate 6, and the drift pin 14a that has been driven in advance is hooked on the hook portion 15 of the joint plate, Finally, a fixing drift pin 14 b is passed through the beam 4 and the joining plate 6. The shaft 3 may be attached to the pillar 1 at a construction site without being attached to the pillar 1 at the factory.

  In the above embodiment, the shaft 3 is fixed to the column 1 with the pin 12, but as shown in FIG. 3, the flange-like portion 18 is provided at the end of the shaft 3 opposite to the side where the joining plate 6 is attached. Alternatively, the shaft 3 may be inserted into the pillar 1 later so that the brim-shaped portion 18 is caught. The flange-shaped portion 18 may be formed by turning the periphery of the shaft 3, but may be formed by hitting and crushing the end surface of the shaft 3, or a separate plate may be formed with a bolt or the like. You may make it attach to the end surface of the shaft 3. FIG.

  Further, as shown in FIG. 4, two joining plates 6 and 6 can be provided on both sides of the shaft 3. The joining plate 6 can have an arbitrary shape and size according to the size of the horizontal member to be joined. The joining plate 6 in FIG. 4 has a shape corresponding to the climbing beam 4.

  FIG. 5 shows an example of a connecting fitting that joins the end portion of the beam 4 to the side surface of the portion connecting the first floor pillar 1a and the second floor pillar 1b with the trunk 2 interposed therebetween. The torso 2 uses a member having a height lower than that of the beam 4, and the two shafts 3 and 3 to which the joining plate 6 is attached are one to the torso 2 and the other to the first floor pillar. It is attached to 1a. The hozo pipe 10b connecting the second floor pillar 1b to the trunk 2 is fixed to the screw hole 11 formed in the center of the upper shaft 3 in the vertical direction with bolts 19b. The hozo pipe 10a connecting the first floor pillar 1a and the body insert 2 is fixed to the screw hole 11 of the lower shaft 3 with bolts 19a. Since the joining plate 6 connects the upper and lower shafts 3 and 3 in this manner, the trunk 2, the first floor pillar 1 a and the beam 4 are integrated, and a connection structure having excellent earthquake resistance is obtained.

  The connecting metal fitting of the present invention is not limited to the embodiment described above. The number of shafts to be used is not limited to two, but may be only one or three or more depending on the size of the horizontal member. The fixing pin may be a simple round bar or may use a bolt.

It is a disassembled perspective view which shows one Embodiment of the connection metal fitting of the wooden building member by this invention. It is a cross-sectional view of the periphery of the metal fittings showing the usage state of the connection metal fittings. It is a front view which shows another embodiment of the connection metal fitting of this invention. It is a front view which shows another embodiment of the connection metal fitting of this invention. It is a longitudinal cross-sectional view of metal fitting periphery which shows another embodiment of the connection metal fitting of this invention in use condition.

Explanation of symbols

1, 1a, 1b Pillar (main trunk member)
2 Torso (main trunk member)
3 Shaft 4 Beam (Horizontal member)
5 Slit 6 Bonding Plate 7 Fixing Pin 8 Slit 9 Fixed Pin Insertion Hole 10a, 10b Hozo Pipe (Connected Body)
11 Screw hole (fixing part of the connecting body)

Claims (3)

  A shaft (3) embedded in the main member (1, 2) with its end protruding, a joining plate (6) inserted into a slit (5) formed at the end of the horizontal member (4), and a joining plate A fixing pin (7) for fixing to the shaft, and the joining plate (6) is inserted into a slit (8) formed at the end of the shaft (3) and penetrates the fixing pin (7) from the side. And fixing to the shaft (3).   The wooden construction according to claim 1, wherein a plurality of fixing pin insertion holes (9) are provided in the joining plate (6) at intervals in the vertical direction so that the mounting height of the joining plate to the shaft can be changed. Connecting bracket for members. The wooden structure according to claim 1 or 2, wherein the shaft (3) is provided with a fixing portion (11) of a connecting body (10a, 10b) embedded in the main member in order to connect the main members. Connecting bracket for members.

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