JP4387156B2 - Metal fittings for wooden building components - Google Patents

Description

  The present invention provides a connecting bracket that can connect a horizontal member (beam, girder, foundation, etc.) obliquely at an arbitrary angle to a main member (column, horizontal member such as a beam, girder, girder, etc.) in a wooden building. About.

When the shape of the room is a shape other than a square in plan view, such as a plan view trapezoidal shape due to roads, etc., it is necessary to connect a horizontal member such as a beam obliquely to a main member such as a column. . As a connecting metal fitting for that purpose, a connecting piece inserted into a slit formed at the end of the horizontal member, and a protrusion formed in a shape protruding from the connecting piece and fitted into a fitting hole formed in the joining surface of the main member The thing comprised with the body is known (for example, refer patent document 1).
JP-A-11-172788

  Since the connecting piece embeds the connecting piece parallel to the longitudinal direction of the horizontal member, if the connecting angle of the horizontal member changes, the angle of the connecting piece also changes. One special order must be produced, leading to large delivery times and costs. Moreover, since it is cumbersome to attach the above-mentioned metal fittings one by one to the main member at the construction site, it is usually attached in advance to the main member in a wood pre-cut factory. Then, when the main member is transported from the factory to the construction site, the connection piece of the metal fitting jumps out of the main member, resulting in an inconvenience that the bulk is increased and the transportation cost is increased.

Furthermore, the connection fitting has the following inconvenience because the connecting piece, which is a portion fixed to the horizontal member, and the protrusion, which is a portion fixed to the main 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 pillar and torso are connected, the connecting bracket cannot be installed across the pillar and torso, In addition, it is not preferable to install the connecting brackets in a vertically divided manner from the viewpoint of connection strength. For this reason, an integral connecting bracket is used with the height of the torso being the same as that of the beam. 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, with conventional brackets, the end face of a horizontal member with a high height cannot be connected to the side surface of a horizontal member with a low height, so the horizontal height of the horizontal members to be joined together is common to the higher 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 brackets has been input, and when drawing the assembly drawings of the housing, which connecting bracket is used for each member, what kind of mounting is used for each member Recognizing whether it is necessary to drill holes, uniform drilling is automatically performed on each member. However, depending on the individual wooden construction, the thickness of the tatami placed on the floor may be different, or the floor may be a flooring floor. It is not easy to prepare the software so that the hole position can be automatically changed one by one in response to such a design change, and it is complicated to perform the hole processing manually.

  The present invention has been made in view of the above-described circumstances, and a horizontal member can be connected to the main trunk member at an arbitrary angle, and the metal fitting does not get in the way even if attached to the main trunk member in advance. Furthermore, it aims at providing the connection metal fitting of the wooden building member which contributes also to the improvement of the construction property and economical efficiency of a wooden frame.

In order to achieve the above object, a connecting member for a wooden building member according to the invention described in claim 1 includes a base member attached to the main member, a plate-like connecting member inserted into a slit formed at an end of the horizontal member, , A connecting pin for connecting the base metal fitting and the connection metal fitting, and the connection metal fitting is connected to the base metal fitting by the connection pin at the end on the main member side , and can be rotated using the connection pin as a fulcrum. The metal fitting is characterized in that it can be connected across a plurality of base metal fittings attached to different main trunk members .

  In the connecting metal fitting according to the invention of claim 2, the connection metal fitting has an uneven mounting portion at the end on the main member side, and the base metal fitting has an uneven mounting portion fitted to the mounting portion, The connecting pin is characterized by penetrating the fitted mounting portion and the mounted portion.

  Furthermore, in the invention described in claim 3, the attachment portion of the connection fitting and the attachment portion of the base fitting are formed at a predetermined pitch in the vertical direction, and the attachment portion of the connection fitting is raised to the attachment portion of the base fitting. It is characterized in that the height of the connection fitting can be changed by fitting differently.

  The invention according to claim 4 is characterized in that the connecting pin can be freely inserted and removed.

The invention according to claim 5 is characterized in that one of the various types of connection fittings is selected and coupled to one base fitting.

  In the connecting bracket according to the first aspect of the present invention, the connecting bracket to be inserted into the slit at the end of the horizontal member is rotatable with the connecting pin as a fulcrum, so that the horizontal member is inclined to the main member at an arbitrary angle. Can be linked. Further, even if the connecting metal fitting is previously attached to the main member at the factory, the connection metal fitting falls down along the side surface of the main member, so that the metal fitting does not get in the way when the main member is carried from the factory to the construction site.

Furthermore , by installing multiple base brackets on separate main members and connecting the connection brackets across the base brackets, there is no need to share the height of the horizontal members that are joined together as in the past, Thereby, the dimension of each member can be made into an optimal state in consideration of strength and economy. Moreover, the upper and lower trunk members and the beam can be firmly integrated by connecting the separated base metal fittings with the connection metal fittings.

  According to a second aspect of the present invention, there is provided a connecting bracket which is applied to the connecting bracket by fitting the uneven mounting portion of the connecting bracket to the mounted portion of the base bracket and by the synergistic action of the connecting pin penetrating them. Demonstrates high strength against load and bending force.

  According to the third aspect of the present invention, it is possible to move only the connection fitting up and down while keeping the height at which the base fitting is attached to the main member, so that the drift pin can be inserted into the horizontal member such as a beam. The height of the horizontal member can be changed while the hole position of the hole is kept constant.

  When the connecting pin can be freely inserted and removed as in the invention described in claim 4, only the base metal fitting is attached to the main member at the factory, and the connecting metal fitting is simply connected to the base metal fitting after being brought into the construction site. it can.

According to the fifth aspect of the present invention, by combining the base metal fittings with various sizes and shapes, various types of connecting metal fittings suitable for the use and size of the horizontal member can be easily manufactured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a connecting member for a wooden building member according to the present invention comprises a base member 1, a connecting member 2, and a connecting pin 3. The connecting member 2 is rotated left and right with the connecting pin 3 as a fulcrum. It comes to move. The connecting pin 3 can be freely inserted into and removed from the base metal fitting 1 and the connection metal fitting 2. As shown in FIG. 4 and the like, the base metal fitting 1 is fixed to the side surface of the main member such as the pillar 4 with a bolt 5, and the connection metal fitting 2 is a slit 7 formed in the vertical direction at the end of a horizontal member such as the beam 6a. And is fixed to the horizontal member by the drift pins 8a and 8b. In addition, the normal usage of this connecting bracket is to separate the base bracket 1 and the connecting bracket 2 and attach only the base bracket 1 to the main member in advance at the factory, and connect the connecting bracket 2 after carrying it to the construction site. The pin 3 is connected to the base metal fitting 1.

  The base metal fitting 1 is formed by cutting a metal square bar or the like. The base metal fitting 1 is chamfered in a semicircular shape when viewed from above and is uneven at a constant pitch in the vertical direction of the front surface portion. The attached portion 10 is formed. The attachment portion 10 is provided with an insertion hole for the connecting pin 3 penetrating in the vertical direction. Furthermore, the recessed part of the to-be-attached part 10 is provided with the insertion hole 11 of the attachment bolt from the front, and the counterbore hole 12 in which the head or nut of a bolt fits.

  The connection metal fitting 2 is formed by cutting an iron plate having a thickness of several millimeters into a predetermined shape with a laser processing machine or the like, and placing a round bar 14 cut into a predetermined length on the end surface of the plate body 13 on the base metal fitting 1 side. In this case, the concave and convex mounting portions 15 are formed by welding in the vertical direction. The attachment portion 15 is provided with an insertion hole for the connecting pin 3 penetrating in the vertical direction. A hook 16 of a drift pin 8a penetrating the horizontal member is formed on the upper edge and the lower edge of the plate 13, and a drift for fixing is provided on the front edge of the plate 13. A plurality of insertion holes 17 for the pins 8b are formed at intervals in the vertical direction. The connection fitting 2 is connected to the base fitting 1 by fitting the attachment portion 15 to the attachment portion 10 of the base fitting 1 and inserting the connecting pin 3 from above. The size and shape of the connecting fitting 2 are appropriately selected according to the size of the horizontal member, and for example, as shown in FIG. 3, when the climbing beam 18 is connected to the side surface of the beam 24 as the main member. It can be replaced with a substantially parallelogram shape suitable for the climbing beam 18, and the fitting portion 15 of the connection fitting 2 can be fitted to the attachment portion 10 of the base fitting 1 at different heights, so that the base It is also possible to change the height of the connection fitting 2 by making the height of the fitting 1 the same.

  FIGS. 4 and 5 show an example of the usage state of the connection fitting of the present invention. The beams 6a and 6b are connected obliquely to the left and right side surfaces of the column 4 when viewed from above, and the beam on the rear side surface of the column 4 6c is connected straightly, and the connecting metal fittings of the present invention are respectively used at these connecting portions. A square hole 19 in the vertical direction is formed on the left and right side surfaces of the pillar 4 to embed the base metal fitting 1, and the base metal fitting 1 is fixed to the pillar 4 using bolts 5 and nuts 20. As shown in FIG. 5, the base metal fitting 1 is embedded in the pillar 4 just to the depth of the center of the connecting pin 3. As for the base metal fitting 1, all of the connecting metal fittings have the same size, but the connecting metal fitting 2 has a different size according to the height of the beam. A groove 21 is formed in the column 4 so that the connecting pin 3 can be inserted from above when the connecting fitting 2 is connected to the base fitting 1. In the beams 6a and 6b, a slit 7 into which the connection fitting 2 is fitted is formed at the center in the width direction. By embedding the base metal fitting 1 in the column 4 to the depth of the center of the connecting pin 3, the slit 7 is positioned at the center in the width direction of the beam regardless of the angle at which the beam is connected to the column 4. Even if the embedding depth of the base metal fitting 1 is made shallow, it is possible to connect the beams obliquely, but in this case, the position of the slit 7 is shifted from the center in the width direction to one side. In the connecting metal fitting for connecting the beam 6c straight to the column 4, the base metal fitting 1 is not embedded in the column 4, but is directly brought into contact with the side surface of the column 4 and fixed with bolts 5 and nuts 20.

  The procedure for connecting the beams 6a, 6b, and 6c to the column 4 will be described. The connecting metal 2 is connected to the base metal 1 that has been previously attached to the column 4 with the connecting pins 3, and the beams 6a, 6b, and 6c are The upper drift pin 8a is driven in advance, and the connecting fitting 2 is inserted into the slit 7 of the beam while lowering the beam from above the connecting fitting 2, and the drift pin 8a is hooked on the hooking portion 16 of the connecting fitting. The drift pin 8b for fixing is passed through the beams 6a, 6b, 6c and the connection fitting 2.

  FIG. 6 is another example of the usage state of the connection fitting of the present invention, and the beam is formed on the side surface of the portion connecting the first floor portion pillar 4a and the second floor portion pillar 4b with the trunk 22 interposed therebetween. The case where 6d and 6e are connected is shown. The torso 22 uses a member having a lower height than the beams 6d and 6e, and the base metal fitting 1 is installed on the side surface of the torso 22 and the side surface of the pillar 4a on the first floor, respectively. The connecting fitting 2 is connected by the connecting pin 3 so as to straddle 1. The first floor portion pillar 4a and torso 22 and the second floor portion pillar 4b and torso 22 are connected by hozo pipes 23a and 23b, respectively. With such a structure, the base metal fitting 1 can be attached in advance to the pillar 4a and the trunk 22 and the connecting metal fittings 2 embedded in the beams 6d and 6e are integral with each other. It can be connected with high strength against bending and torsional forces applied to the wire. In addition, since the connecting metal fitting 2 connects the separated base metal fittings 1 and 1, the barrel 22, the first floor portion pillar 4 a, and the left and right beams 6 d and 6 e are integrated, and is excellent in earthquake resistance. It becomes a connected structure.

  The connecting metal fitting of the present invention is not limited to the embodiment described above. For example, when the width of the base bracket is increased and the insertion holes and counterbore holes for the mounting bolts are provided on both sides of the base bracket at positions off the both sides of the connection bracket, and the connection bracket is connected to the base bracket. It may be possible to attach to the main member. About the usage method of this connection metal fitting, the attachment to the main member of a base metal fitting may be performed in a construction site, and the operation | work which connects a connection metal fitting to a base metal fitting may be performed in a factory. Moreover, you may attach the connection metal fitting of the integrated state to a main member at a factory or a construction site.

(A) A figure is a top view which shows an example of the connection metal fitting of the wooden building member by this invention, (b) A figure is the same side view. It is AA sectional drawing in FIG. It is a side view which shows the other example of the connection metal fitting of the wooden building member by this invention. It is a longitudinal cross-sectional view which shows an example of the use condition of the connection metal fittings of the wooden building member by this invention. It is a cross-sectional view in the use state of FIG. It is a longitudinal cross-sectional view which shows the other example of the use condition of the connection metal fitting of the wooden building member by this invention.

1 Base bracket 2 Connection bracket 3 Connecting pin 4, 4a, 4b Pillar (main member)
5 Bolts 6a, 6b, 6c, 6d, 6e Beam (horizontal member)
7 Slit 10 Mounted part 15 Mounted part 18 Climbing beam (horizontal member)
22 Torso (main trunk member)

Claims (5)

A plate-like connection inserted into the base metal fitting (1) attached to the main trunk member (4, 4a, 4b, 22) and the slit (7) formed at the end of the horizontal member (6a, 6b, 6c, 6d, 6e) A metal fitting (2) and a connecting pin (3) for connecting the base metal fitting and the connection metal fitting are provided, and the connection metal fitting (2) is connected to the base metal fitting (1) by the connection pin (3) at the end on the main member side. It is connected, can be rotated with the connecting pin (3) as a fulcrum , and the connection fitting (2) straddles a plurality of base fittings (1) attached to different main members (4a, 4b, 22). The connecting bracket of the wooden building member characterized by being freely connectable.   The connection fitting (2) has an uneven mounting portion (15) at the end on the main member side, and the base metal fitting (1) has an uneven mounting portion (10) fitted to the attachment portion. 2. A connecting member for a wooden building member according to claim 1, wherein the connecting pin (3) penetrates through the fitted mounting portion and the mounted portion.   The attachment portion (15) of the connection fitting and the attachment portion (10) of the base fitting are formed at a predetermined pitch in the vertical direction, and the attachment portion (15) of the connection fitting is used as the attachment portion (10) of the base fitting. The connecting bracket for a wooden building member according to claim 2, characterized in that the height of the connecting bracket (2) can be changed by fitting with different heights.   4. The connecting member for a wooden building member according to claim 1, wherein the connecting pin (3) is detachable. 5. A connecting member for a wooden building member according to claim 1, 2, 3 or 4 , wherein one of a plurality of types of connecting members (2) is selected and connected to one base member (1). .

Images