JP2005220676A - Joint structure of ligneous structural member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure of a ligneous structural member capable of eliminating a clearance at a joint part by firmly and securely connecting a column to a beam by using T-shaped connecting fittings. <P>SOLUTION: The connection fitting 10 comprises a first mounting piece 11 formed by joining two metal sheets to each other in T-shape and fastened to the joining side side-face 1a of the column 1 and a second mounting piece 12 installed projectedly at a right angle to the first mounting piece 11 and engaged with an engagement groove 4 longitudinally extending from the joining side end face 3a of the beam 3. Two connection holes 14 and 14 in which a connection pin 20 is inserted is formed in the second mounting piece 12, and insert holes 5 and 5 for the connection pin 20 passed through while crossing the engagement groove 4 are formed at the joining side end part of the beam 3. The connection pin 20 comprises a cutout flat face 21 extending in the axial direction of the side face. With the connection pin inserted into the insert hole 5 and the connection hole 14, a wedge member 22 is driven into a space part between the cutout flat face 21 and the inner wall surface of the insert hole 5 to press the connection pin 20 against the inner wall surface of the insert hole 5. Thus, the clearance between the beam 3 and the second mounting piece 12 can be eliminated, and the column 1 can be joined to the beam 3 through the connection fitting 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a joint structure of structural members such as columns and beams in a wooden building.

  In wooden construction, when joining columns and beams, etc., the shaft construction method for machining tenons and mortises that engage with each other in the joint has been practiced for a long time, but in recent years various connecting hardware has been attached to the joint. It has come to be used.

As one of such connecting hardware, a first mounting piece that is formed by joining two metal plates in a T-shape and is fastened to the side surface of the column on the joining side, and a right angle with respect to the first mounting piece There is known a joining structure of a wooden structure member using a connecting hardware that includes a second mounting piece that projects from the joining side end face of the beam and that engages with an engaging groove that extends in the longitudinal direction (for example, a patent) Reference 1).
Japanese Patent Laid-Open No. 10-219817 (page 3, right column [0011], page 4, right column [0021], FIGS. 2 and 11)

  The present invention is an improvement of the joining structure of the wooden structure member using the above-described conventional T-shaped connecting hardware, and can connect the column and the beam more firmly and reliably than the conventional connecting hardware, and rattles the joint. An object of the present invention is to provide a joining structure of wood structure members without any problem.

  In order to achieve the above object, the present invention comprises a first mounting piece formed by joining two metal plates in a T shape, and fastened to the side surface of the joining side of the pillar, and the first mounting piece. A wood structure member joining structure using a connecting hardware comprising a second mounting piece protruding perpendicularly to the beam and engaging with an engaging groove extending in the longitudinal direction from the joining side end face of the beam, 2 is provided with a connection hole through which a connection pin is inserted, and at the joint side end of the beam, an insertion hole of the connection pin penetrating across the engagement groove is provided. The side surface has a notch flat surface extending in the axial direction, and the wedge is inserted into the gap between the notch flat surface and the inner peripheral surface of the insertion hole in a state where the connection pin is inserted into the insertion hole and the connection hole. By driving a member and pressing the connecting pin against the inner wall surface of the insertion hole, the beam and the second Eliminate rattling of the biasing member, and said post and said beam is characterized in that it is bonded through the connecting fitting.

  Two connecting pins and two insertion holes are provided in parallel in a direction perpendicular to the longitudinal direction of the beam.

  The insertion pin and the connection pin inserted through the connection hole are arranged in a posture in which the notched flat surface faces the side of the column on the side of the connection, and the connection end surface of the beam is formed by the wedge member driven into the gap. If it comprises so that it may press by the said 1st attachment piece fastened to the joining side side surface of the said pillar, the rattling of a junction part can be prevented more effectively.

  Further, in order to facilitate the positioning and insertion of the connection pin with respect to the insertion hole and the connection hole, a positioning protrusion protruding in the radial direction is provided on the outer peripheral surface of the connection pin, and the insertion hole and the connection hole are provided. An engaging recess that engages with the protruding portion is provided on the inner peripheral surface of the connecting pin, and the connecting pin that is inserted through the insertion hole and the connecting hole is engaged with the protruding portion and the engaging recess. It is preferable that the notched flat end face is arranged in a posture facing the longitudinal direction of the beam.

  ADVANTAGE OF THE INVENTION According to this invention, the joining structure of the wooden structure member which can join a pillar and a beam firmly and reliably using a T-shaped metal fitting, and does not rattle a joint part is obtained. Moreover, the structure is simple and the joining work is easy.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings. 1 and FIG. 2 show a joint portion of columns in a wood structure member joining structure according to the present invention. The column 1 is made of a structural laminated material, and four bolt insertion holes 2 penetrating from the joining side surface 1a to the opposite side surface 1b of the joining side surface 1a are machined in the joining portion.

  On the other hand, the connecting hardware 10 used in the present invention is manufactured by welding two metal plates formed in a rectangular shape, and the first attachment piece 11 that is tightly coupled to the joining side surface 1a of the column 1 and the first The first mounting piece 11 has four mounting holes corresponding to the bolt insertion holes 2 in the first mounting piece 11. 13 is provided, and the second mounting piece 12 is provided with two connecting holes 14 through which connecting pins 20 to be described later are inserted in parallel in a direction perpendicular to the longitudinal direction. Further, on the opposite side surface 1 b of the column 1, a contact plate 15 used when the connecting hardware 10 is fastened to the column 1 is disposed. The plate 15 is formed in a rectangular shape corresponding to the first mounting piece 11, and four mounting holes 1 b corresponding to the mounting holes 13 are provided. A hexagonal counterbore for processing a head 17 ′ of a long bolt 17 described later is machined in the mounting hole 13. The second mounting piece 12 is provided with a notch 31 for engaging a temporary fixing pin 30 described later.

  The connecting hardware 10 allows the four long bolts 17 inserted through the mounting holes 13 of the first mounting piece 11 to pass through the bolt insertion holes 2 from the joining side side surface 1a of the pillar 1 and project to the opposite side surface 16. A nut 19 is screwed and tightened to the protruding screw portion 18 in a state where the mounting hole 16 of the contact plate 15 is fitted to the protruding screw portion 18 of each long bolt 17, and as shown in FIG. Tightened to the side surface 1a. At this time, the 1st attachment piece 11 is closely_contact | adhered and fixed to the joining side side surface 1a, and the 2nd attachment piece 12 protrudes in the orthogonal direction with respect to the joining side side surface 1a, and is arrange | positioned. Further, the head 17 ′ of the long bolt 17 sinks into the spot facing portion of the mounting hole 13 and does not protrude from the first mounting piece 11.

  An engaging groove 4 extending in the longitudinal direction from the joining end surface 3 a is processed in the beam 3 joined to the column 1. The engagement groove 4 is formed in a slit shape in which the second attachment piece 12 of the connection hardware 10 is engaged in close contact. In addition, insertion holes 5 and 5 for connecting pins 20 that pass through the engaging groove 4 in a direction perpendicular to the engaging groove 4 are provided at the joint side end of the beam 3. The insertion holes 5 and 5 are processed to have substantially the same diameter at positions corresponding to the connection holes 14 and 14 provided in the second mounting piece 12 of the connection hardware 10. Further, a temporary fixing pin 30 penetrating in a direction perpendicular to the engaging groove 4 is fitted and inserted near the inside of the engaging groove 4 of the beam 3.

  The connection pin 20 is made of a metal bar, and has a diameter and a length that allow the connection pin 20 to pass through the insertion hole 5 of the beam 3 and the connection hole 14 of the connection hardware 10 without being rattled. As shown in FIG. 5, the connecting pin 20 is provided with two notched flat surfaces 21 and 21 extending in the axial direction from both ends on the outer surface except for the central portion 20a. The notched flat surfaces 21 and 21 are provided for driving wedge members 22 and 22 to be described later, and are formed on a plane extending substantially parallel to the axis of the connecting pin 20.

  As shown in FIG. 6, the wedge member 22 is formed of an elongated metal plate-like piece, the lower surface 23 is a flat surface, and the upper surface has inclined portions 25 and 25 on both sides of a central portion 24 extending substantially parallel to the lower surface 23. However, the central portion 24 is raised, and the tip portion 26 is formed in a tapered surface whose upper surface and both side surfaces are tapered.

  Next, the joining work process by the connecting metal member 10, the connecting pin 20, and the wedge member 22 having the above-described configuration will be described.

  As shown in FIGS. 2 and 3, the engagement groove 4 of the beam 3 is engaged with the second mounting piece 12 of the connecting metal 10 tightly coupled to the joining side surface 1 a of the column 1, and the temporary fixing pin 30 is connected to the second fixing piece 30. The connection pin 20 is inserted into the insertion hole 5 of the beam 3 and the connection hole 14 of the connection hardware 10 in a state where the attachment piece 12 is engaged and positioned and supported by the notch 31. At this time, it is preferable to insert and arrange the connecting pin 20 in such a posture that the notched flat surface 21 of the connecting pin 20 faces the joining end surface 3a of the beam 3, that is, the joining side surface 1a of the column 1. In the state in which the connecting pin 20 is inserted and arranged in this way, as shown in FIG. 4, the lower surface 23 is notched flat in the gap formed between the notched flat surface 21 and the inner wall surface of the insertion hole 5 of the beam 3. 7 and 8, when the wedge member 22 is driven in, the central portion 24 of the wedge member 22 bites into the beam 3 material as shown in FIGS. 3 a is pressed against the first mounting piece 11, and the connecting pin 20 is pressed against the wall surface in the insertion hole 5 by the reaction force B of the pressure A, and the backlash between the beam 3 and the second mounting piece 12. There is no sticking, and the pillar 1 and the beam 3 are firmly and reliably joined to each other through the connecting hardware 10 without the rattling.

  FIG. 9 shows an example in which the notched flat surface 21 provided on the outer surface of the connecting pin 20 is provided over the entire length. In this case, the notch flat surface 21 of the connecting pin 20 inserted through the connecting hole 14 is opposed to the longitudinal direction of the beam 3 by making the connecting hole 14 of the connecting hardware 10 a non-circular hole that matches the cross-sectional shape of the connecting pin 21. This is convenient for use.

  In FIG. 10, a positioning protrusion 23 that protrudes in the radial direction in addition to the cut-out flat surface 21 is provided on the outer surface of the connection pin 20, and on the other hand, a positioning protrusion is formed on the inner peripheral surface of the connection hole 14 of the connection hardware 10. The example provided with the engagement recessed part 24 engaged with the part 23 is shown. Also in this case, the notched flat surface 21 of the connecting pin 20 inserted through the connecting hole 14 is automatically arranged in a posture facing the longitudinal direction of the beam 3.

The pillar in the junction structure of the wooden structure member by this invention, and a connection hardware are shown disassembled, (a) is a perspective view seen from the junction side side of a pillar, (b) is the opposite of the junction side side of a pillar It is the perspective view seen from the side. The coupling | bonding metal fitting is shown in the same column as the above, (a) is the perspective view seen together with the beam from the joint surface side surface of the column, (b) is from the opposite side of the joint side surface of the column. FIG. It is a perspective view which shows the driving | operation process of the connection pin in the junction structure of the pillar and beam by this invention. It is a perspective view which shows the driving | operation process of the wedge member in the junction structure of the pillar and beam by this invention. It is a perspective view which shows the connection metal fitting used for the joining structure of this invention, a connection pin, and a wedge member. The wedge member is shown, (a) is a perspective view, (b) is a top view, (c) is a side view. It is a principal part cross-sectional top view which shows the joining structure of the pillar and beam by this invention. It is an arrow enlarged view which follows the 8-8 line of FIG. It is a perspective view which shows another embodiment of the connection metal fitting and connection pin which are used for the joining structure by this invention. It is a perspective view which shows another embodiment of the connection metal fitting and connection pin which are used for the joining structure by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Column 1a Joining side surface 1b of column 1 Side surface opposite to joining side surface 1a 2 Bolt insertion hole 3 Beam 3a Joining end surface of beam 3 Engagement groove 5 Insertion hole 10 Connection hardware 11 1st attachment piece 12 2nd Mounting piece 13 Mounting hole 14 Connecting hole 20 Connecting pin 21 Notched flat surface 22 Wedge member 23 Lower surface of wedge member 24 Central portion of wedge member

Claims (4)

A first mounting piece that is formed by joining two metal plates in a T-shape and is tightly coupled to the side of the column on the joint side, and protrudes at a right angle to the first mounting piece. It is a joining structure of a wooden structure member using a connecting hardware consisting of a second mounting piece that engages with an engaging groove extending in the longitudinal direction from an end surface,
The second mounting piece is provided with a connecting hole through which a connecting pin is inserted, and the connecting pin end of the beam is provided with an inserting hole for the connecting pin penetrating across the engaging groove,
The connecting pin has a cut-out flat surface extending in the axial direction on a side surface, and the cut-out flat surface and an inner wall surface of the insert-through hole in a state where the connection pin is inserted through the through-hole and the connecting hole. A wedge member is driven into the gap and the connecting pin is pressed against the inner wall surface of the insertion hole to eliminate rattling between the beam and the second mounting piece. A joining structure for a wood structure member, which is joined through a connecting hardware.   2. The wood structure member joining structure according to claim 1, wherein the connecting hole and the insertion hole are provided in parallel in a direction perpendicular to the longitudinal direction of the beam.   The connecting pin inserted into the insertion hole and the connecting hole is disposed in a posture in which the notched flat surface is opposed to the side surface on the joint side of the column, and the joint end surface of the beam is driven by the wedge member driven into the gap portion. 3. The wood structure member joining structure according to claim 1, wherein the structure is configured to be pressed by the first mounting piece that is tightly coupled to the joint side surface of the column. A positioning protrusion that protrudes in the radial direction is provided on the outer surface of the connection pin, and an engagement recess that is engaged with the protrusion is provided on the inner peripheral surface of the insertion hole and the connection hole.
The insertion pin and the connection pin inserted through the connection hole are configured to be arranged in a posture in which the flat end surface of the notch is oriented in the longitudinal direction of the beam by the engagement of the protrusion and the engagement recess. The joined structure of the woody structure member according to claim 1, 2, or 3.

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