JP2013133677A - Building timber joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building timber joint structure for eliminating looseness in a connecting region between a building vertical member and a building horizontal member.SOLUTION: In the building timber joint structure, a bolt insertion hole 4 is provided in a side face of a building vertical member 1, and a horizontal member side metal fitting storage hole 5 is provided in an end of a building horizontal member 2 for accommodating a connection metal fitting. The connection metal fitting 6 is constituted by a fixed part 13 to be fixed into the horizontal member side metal fitting storage hole 5, and a movable part 14 movable relative to the fixed part 13. On the movable part 14, a thread part 11 is provided to which a connection bolt 3 inserted through the bolt insertion hole 4 is threaded. A drawing transmission lock part 15 is provided for transmitting drawing force to the fixed part 13 when the connection bolt 3 threaded to the thread part 11 is turned to draw and move the movable part 14 in the horizontal member side metal fitting storage hole 5 to the fixed part 13.

Description

  The present invention relates to a joining structure of building wood that joins a building vertical member such as a wooden pillar and a building cross member such as a wooden beam.

  As a conventional joining structure of building wood, there is a structure using a U-shaped joining metal fitting with a U-shaped cross section, as disclosed in, for example, Japanese Patent Laid-Open No. 2000-104343 (Patent Document 1).

  Specifically, a vertical member fixing part that abuts and fixes to a vertical member for building, and a pair of left and right horizontal members that protrude from the vertical member fixing part and are joined and connected to a joint portion at an end of the horizontal member for building. A U-shaped or U-shaped joint fitting made of a plate portion is used.

  In the vertical member fixing portion of the joining bracket, a plurality of bolt holes for inserting the connecting bolts penetrating and projecting from the side surface of the longitudinal member are provided in a vertically arranged state, while the left and right transverse member connecting plate portions of the joining bracket are provided. In the end of the cross member, a locking hole for inserting a locking body (drift pin) that is inserted and fixed in an insertion hole formed in the joint portion, or an insertion hole of the joint portion, respectively. A jaw hooking concave portion is provided for connecting the locking body at the uppermost position inserted and fixed in a hooked state.

  Then, for example, the vertical member fixing portion of the joint fitting is abutted and fixed to the side surface of the vertical member by, for example, a connecting bolt penetrating a bolt insertion hole provided in a penetrating manner between the opposite side surfaces of the vertical member.

  Next, the transverse member connecting plate portion of the joint fitting is inserted and disposed in the joint portion of the transverse member, and the locking body that is inserted and fixed in advance in the uppermost insertion hole of the joint portion is inserted into the transverse member. It mounts and supports from the upper part to the chin hanging recessed part of a connection board part, and it connects with a latching state.

  After that, the remaining insertion hole of the joint portion and the locking hole of the cross member connecting plate portion are communicated to fix and fix the cross member, and the cross member connecting plate portion is fixed to the cross member of the cross member. In this configuration, the longitudinal member and the transverse member are joined at right angles or in an inclined state.

JP 2000-104343 A

  In the above-described joining metal fitting, the hole diameter size of the locking hole is set to be slightly larger than the outer diameter size of the locking body for the purpose of improving workability when driving the locking body.

  However, the gap generated between the locking hole and the locking body due to this dimensional difference causes rattling, and this rattling causes inaccuracy of the connecting position of the building cross member relative to the building vertical member and causes a decrease in structural strength. There are concerns.

  Therefore, in order to eliminate such a concern, a technique called “attraction” has been conventionally performed.

  This “drawing” will be briefly described. For example, the insertion hole formed in the end portion of the cross member is usually arranged on the inner side (transverse side) of the cross member according to the difference in diameter between the lock hole and the lock body. If the locking body is driven into the insertion hole and the locking body is inserted into the locking hole and locked, the transverse member connecting plate of the locking hole is formed. The side part outer peripheral surface of the locking body abuts on the hole edge on the tip side of the part so that the cross member is drawn to the side part of the vertical member. There is no rattling on the body and the above concerns are resolved.

  However, this “pulling” requires high accuracy in the formation position of the insertion hole to the end portion of the cross member, and even if the position accuracy of the insertion hole can be secured, the cross member shrinks due to drying. Since the positional relationship between the insertion hole and the locking hole is distorted, it is necessary to use wood that does not easily shrink.

  The present invention was completed after the development of the product in view of such a current situation, and requires high accuracy in the formation position of the insertion hole in the cross member for building or depends on the quality of the cross member. It is possible to draw a cross member to a vertical member and join it firmly, and there is no backlash at the connecting part (insertion body and locking hole) between the vertical member for building and the cross member for building. It provides a periodical construction wood joining structure.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A construction structure of wood for joining a wooden building vertical member 1 and a wooden building cross member 2 at a right angle or an inclined state, wherein the building cross member 2 of the building vertical member 1 is joined. A bolt through hole 4 through which the connecting bolt 3 is inserted from the opposite side surface portion opposite to the joint side surface portion to the joint side surface portion is provided in the vertical member 1 for building, and the cross member side is provided at the end of the cross member 2 for building. A metal fitting housing hole 5 is provided, and a connecting metal fitting 6 is movably disposed in the cross member side metal fitting housing hole 5 so as to be movable. The bolt metal through hole 4 provided in the building vertical member 1 is passed through the connecting metal fitting 6. And a threaded portion 11 to which the threaded portion 10 of the connecting bolt 3 projecting from the joint side surface is threaded, and the connecting bolt 3 is rotated to be screwed to the connecting bolt 3. The connecting metal fitting 6 is configured to be drawn and moved in the direction of drawing out from the cross member side metal fitting housing hole 5. The connecting bracket 6 is composed of a fixed portion 13 that is fixed in advance in the horizontal member-side bracket housing hole 5 of the building cross member 2 and a moving portion 14 that is provided so as to be able to be drawn and moved relative to the fixed portion 13. The moving part 14 is provided with the screwing part 11, and the connecting bolt 3 screwed to the screwing part 11 of the moving part 14 is rotated, whereby the transverse member side metal fitting receiving hole is brought into a detent state. When the moving part 14 accommodated in 5 is drawn and moved with respect to the fixed part 13, an attracting transmission locking part 15 is provided for transmitting the drawing force to the fixed part 13. It relates to the joint structure of building wood.

  In addition, when the moving unit 14 is pulled and moved, the pulling transmission locking unit 15 that is locked to the fixed unit 13 and transmits a pulling force to the fixed unit 13 during the movement is provided to the moving unit 14. After the connecting bolt 3 is tightened and rotated to draw the moving part 14, an attracting force is transmitted to the fixing part 13 via the drawing transmission locking part 15. The fixed looseness is pulled and removed, and the locking body 9 inserted through the insertion hole 8 provided in the building cross member 2 is inserted and locked into the locking hole 7 provided in the moving portion 14, thereby The construction material according to claim 1, wherein the construction material is joined to the cross member 2 via the connecting metal fitting 6.

  Further, the fixing portion 13 of the connecting metal fitting 6 is a plate material body 18 inserted and disposed in the horizontal material side metal fitting storage hole 5 provided at the end portion of the building cross member 2. By inserting and locking the locking body 9 inserted through the insertion hole 8 provided in the building cross member 2 into the locking hole 7, the cross member side metal fitting storage hole 5 of the building cross member 2 is previously held. The moving portion 14 of the connecting metal fitting 6 is provided so as to be able to be drawn and moved in a direction protruding from the side member side metal fitting housing hole 5 with respect to the fixing portion 13. The pulling transmission locking portion 15 is provided which is locked during the pulling movement and transmits a pulling force to the fixing portion 13 to remove the fixed play between the locking hole 7 and the locking body 9. After removing the backlash of the fixing part 13, the locking body 9 inserted through the insertion hole 8 provided in the cross member 2 for construction is inserted. Those of the joining structure of construction timber according to any one of claims 1, 2, characterized in that it has a structure in which a locking hole 7 for write locking.

  Moreover, the vertical member side metal fitting accommodation hole 12 which a part of the said moving part 14 of the said connection metal fitting 6 which draws and moves accommodates in the said joint side surface part which the said connection bolt 3 of the said vertical member 1 for construction penetrates and protrudes. The engaging member is inserted through the insertion hole 8 provided in the building cross member 2 after the vertical member side metal fitting receiving hole 12 draws and moves a part of the moving portion 14 of the connecting metal fitting 6 to be accommodated. 4. The construction structure of wood for building construction according to claim 1, wherein the locking hole 7 for inserting and locking the stationary body 9 is provided in the moving portion 14 of the connecting metal fitting 6. It is related.

  Further, the cross member side metal fitting housing hole 5 is recessed in the end of the building cross member 2, and the vertical material side metal fitting housing hole 12 is opposed to the joint side surface portion of the building vertical member 1. Recessed, the connecting metal fitting 6 is accommodated in the crosspiece side metal fitting housing hole 5, the fixing portion 13 is fixed in the crosspiece side metal fitting housing hole 5, and the joint side surface portion of the building vertical member 1 is fixed. The end portions of the crosspiece 2 for building are abutted and arranged, and the screw portion 10 penetrating and projecting from the vertical member 1 for building of the connecting bolt 3 is provided at the end portion of the moving portion 14 of the connecting bracket 6. The moving part 14 of the connecting fitting 6 is screwed by screwing the connecting bolt 11 and turning the connecting bolt 3, and the end of the moving part 14 is inserted into the vertical member side fitting receiving hole 12. The latching body 9 inserted through the insertion hole 8 of the cross member 2 for building is inserted and locked into the locking hole 7 provided in the moving portion 14 by being drawn and stored. Te, it relates to the junction structure of the construction timber according to claim 4, characterized in that the structure for joining the the building longitudinal member 1 wherein the building crosspiece 2.

  Further, the vertical member side metal fitting housing hole 12 is recessed in the joint side surface portion of the building vertical member 1, and the joint side surface portion of the upper portion of the vertical material side metal fitting housing hole 12 is connected to the end of the building horizontal member 2. The construction vertical member 1 is formed in a shape having a bearing surface 17 for supporting the lower surface of the end portion of the architectural cross member 2 at the lower part of the vertical member side metal fitting housing hole 12 as the abutting surface 16 of the part. It concerns on the joining structure of the construction wood of any one of Claim 4, 5 characterized by these.

  Further, the building vertical member 1 is provided with an insertion hole 30 for inserting and locking the locking body 9 in a state adjacent to the vertical member side metal fitting housing hole 12, or the building cross member 2 7. The building according to any one of claims 4 to 6, wherein an insertion hole 30 for inserting and locking the locking body 9 is provided adjacent to the horizontal member side metal fitting storage hole 5. This relates to a wood joining structure.

  Since the present invention is configured as described above, the connecting bolt screwed portion in which the connecting bolt inserted and disposed in the bolt through hole of the building vertical member is stored and fixed in the horizontal member side metal fitting receiving hole at the end of the building horizontal member. By screwing onto and tightening, it is possible to draw and join the building cross member (the connection bracket fixed to the cross member side metal fitting storage hole) to the vertical member for construction, Because the fixing part can be fixed at the back side of the side metal fitting housing hole, that is, at a position away from the joint part of the wood, it exerts strong resistance to the load that tries to change the crossing angle of the building cross member In addition, it is possible to remove the looseness of the fixed part to the horizontal member side metal fitting storage hole of the fixed part by pulling the connecting metal fitting, so that the looseness of the joint part between the vertical material for building and the horizontal material for building is surely eliminated. It is difficult to cause poor joint position accuracy and structural strength, and earthquakes Even if there is a load that tries to change the crossing angle of the building cross member against the vertical member of the building due to the influence of strong winds, it is possible to immediately demonstrate the proof against this load. It becomes a joint structure of building wood.

  Further, in the invention according to claim 2, since the pulling force is transmitted to the fixed portion during the pulling movement of the moving body, the pulling movement of the moving portion makes it possible to The fixed play can be removed reliably, and the moving part can be easily fixed in the horizontal member-side bracket housing hole by the locking body, so that both the fixed part and the moving part can be fixed to the horizontal member-side bracket storage hole. It becomes a high-strength joint structure because it is fixed to the material), and it can also be removed by pulling the fixed backlash due to the locking member of the moving part (locking hole). .

  Further, in the invention according to claim 3, it is possible to easily design and realize a connecting bracket having a structure in which the moving portion moves in a direction protruding from the transverse member side metal fitting receiving hole with respect to the fixed portion. A high-strength joint that allows the moving part to be easily fixed in the horizontal member side metal fitting storage hole by a locking body, and allows a large number of locking bodies to be inserted and locked in the formation range of the horizontal member side metal fitting storage hole. In addition, the construction wood joining structure is more practical, such that the fixing play between the locking hole and the locking body of the fixed portion and the moving portion can be reliably removed by pulling.

  Moreover, in invention of Claims 4-6, the vertical member side metal fitting provided in the joining side part of the horizontal member side metal fitting accommodation hole provided in the edge part of the horizontal member for construction, and the vertical member for construction in the connection metal fittings Since it can be stored and joined so as to span the storage hole, the cross member for construction and the vertical member for construction have a very strong joint structure that is difficult to be displaced with respect to the connecting bracket, and the cross member side metal fitting storage hole Since the moving parts of the connecting brackets stored in the box are drawn together and stored in the vertical member side bracket storage holes, when the end of the building cross member is abutted against the joint side part of the building vertical member, the cross member The moving part of the connection fitting stored in the side fitting storage hole does not get in the way, and this abutting work can be easily performed, and the end of the cross member for construction is abutted against the joint side part of the vertical member for construction. In the case, the moving part of the connecting bracket is stored in the horizontal member side mounting hole so as not to disturb Etc. It is also possible advance, the joining structure of construction timber excellent in more practical.

  Further, particularly in the inventions according to claims 4 and 5, the moving part of the connecting metal fitting can be easily fixed by the locking body in the horizontal member side metal fitting receiving hole, so that both the fixing part and the moving part of the connecting metal part are on the side member side. Since it is fixed to the bracket housing hole (cross member for construction), it has a very high strength joint structure.

  Further, in the invention described in claim 5 in particular, the lateral member side metal fitting storage hole and the vertical material side metal fitting storage hole which are not easily displaced with respect to the connecting metal fitting are provided between the end of the building horizontal member and the vertical member of the construction material. It becomes a construction structure of wood for construction which is more practical and can be easily realized on the joint side surface.

  Further, in the invention of claim 6 in particular, since the joining side surface portion at the upper part of the vertical member side metal fitting insertion hole is used as the abutting surface of the end portion of the cross member for construction, the vertical direction of the connecting metal fitting is difficult to shift upward. The material side metal fitting storage hole can be easily designed and realized, and the bottom surface of the end of the horizontal member for construction can be supported on the support surface of the vertical material for construction, so that it can be temporarily fixed. The threaded part can be easily screwed and pulled to the threaded part of the connecting bracket, and the workability is further improved. The contact with the lower surface of the edge of the material improves the strength against loads that attempt to change the crossing angle of the building cross member against the building vertical member due to the earthquake or strong wind. Therefore, it becomes the construction structure of the wood for construction excellent in practicality with higher joint strength.

  Further, in the invention according to claim 7, for example, when a load is applied such that the building cross member pushes the building vertical member under the influence of an earthquake or strong wind, the inside of the vertical member side metal fitting receiving hole and the cross member side metal fitting The connecting bracket moves in the storage hole and tries to fit into the vertical member side bracket storage hole or the horizontal member side bracket storage hole, but it is inserted and locked into the insertion hole provided in the building vertical member or building cross member. Since the locking body will exert a strong resistance to the vertical fitting side metal fitting storage hole or the horizontal material side metal fitting storage hole of the connecting metal fitting, a stronger construction wood joining structure should be realized. It becomes.

FIG. 3 is an exploded perspective view showing a connecting metal fitting of Example 1. It is the side view which notched a part which shows the coupling metal fitting of Example 1. FIG. FIG. 3 is an explanatory perspective view showing a state in which the connection fitting is to be housed and fixed in the transverse member-side fitting housing hole at the end of the building transverse member according to the first embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory perspective view showing a state where an end of a building cross member is to be abutted against a joint side surface of a building vertical member in Example 1. Continuing from FIG. 4, an explanatory perspective view with a part cut away showing a state in which the bottom surface of the end of the cross member for building is supported on the support surface of the vertical member for building and the connection bolt is about to be inserted into the bolt through hole. FIG. FIG. 6 is an explanatory side view with a part cut away showing a state in which the connecting bolt is inserted into the bolt through hole and the screw portion is screwed to the screwing portion of the connecting fitting, following FIG. 5. Continuing from FIG. 6, the connecting bolt is tightened and rotated, and the moving part of the connecting bracket is drawn into the vertical member side metal fitting storage hole of the joining side surface portion of the vertical member for building and is partially cut away. FIG. FIG. 8 is an explanatory side view, partially cut away, showing a state in which the connecting bolt is tightened and rotated until the pulling transmission locking portion of the moving portion is locked to the engaging portion of the fixed portion, following FIG. 7. FIG. 9 is an explanatory side view partially cut away showing a state where the connecting bolt is slightly loosened and the locking hole of the moving part and the locking hole of the fixing part are aligned, following FIG. 8. Next to FIG. 9, the locking member is inserted and locked from the insertion hole of the cross member for building into the locking hole of the moving part and the fixing part and the remaining locking hole of the fixing part which are aligned and communicated. FIG. 5 is an explanatory perspective view with a part cut away showing a state where a connecting bolt is about to be inserted into the remaining bolt through hole. Continuing from FIG. 10, a part of the connection bolt is tightened and rotated to remove the locking holes and the fixed looseness of the locking body (joint state between the vertical member for building and the horizontal member for building) is cut. FIG. FIG. 3 is an explanatory side view in which a part of the usage state of the first embodiment is cut away. FIG. 6 is an explanatory plan view in which a part showing another usage state of Example 1 is cut away. It is explanatory side view which notched a part which shows the joining state of the crosspiece for construction of Example 2, and the crosspiece for construction.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  The connecting bracket 6 is housed in the transverse member-side metal fitting storage hole 5 provided in advance at the end of the cross member 2 for construction, and the fixing portion 13 of this connecting metal fitting 6 is fixed in the transverse member-side metal fitting receiving hole 5.

  The end of the crosspiece 2 for building is abutted against the joint side surface of the vertical member 1 for construction, and the bolt through hole 4 provided in the vertical member 1 for construction from the opposite side portion opposite to the joint side portion. The connecting bolt 3 is inserted into the joint side surface portion, and the screw portion 10 of the connecting bolt 3 projecting and projecting from the joint side surface portion through the bolt through hole 4 is connected to the screwed portion 11 provided on the moving portion 14 of the connecting metal fitting 6. When the connecting bolt 3 is tightened and turned, the moving part 14 accommodated in the transverse member side metal fitting accommodation hole 5 in a non-rotating state is moved to the transverse member side metal fitting accommodation hole with respect to the fixed portion 13. 5 is pulled in the direction of pulling out and moves.

  Therefore, even if the connecting fitting 6 is pulled toward the building vertical member 1 side by tightening rotation of the connecting bolt 3, the fixing portion 13 does not move and only the moving portion 14 moves. It can fix to the back side of the cross member side metal fitting accommodation hole 5 away from the edge part of the cross member 2 for construction which is a junction part of the material 1.

  That is, in order to exhibit the strength against the load that attempts to change the crossing angle of the building cross member 2 with respect to the building vertical member 1, the building cross member that is a joint portion with the building vertical member 1 is used. Although it is more effective to fix the connection fitting 6 at a position away from the vicinity of the end of the second portion, according to the present invention, a configuration that exhibits this high strength can be easily designed and realized.

  Subsequently, when the connecting bolt 3 is tightened and rotated, the pulling transmission locking portion 15 of the moving portion 14 is locked to the fixing portion 13 and the pulling force of the moving portion 14 is also transmitted to the fixing portion 13. As a result, the building cross member 2 is drawn toward the joint side surface portion of the building vertical member 1, and the end portion of the building cross member 2 is joined to the joint side surface portion of the building vertical member 1.

  And this joining state will be the state from which the fixed backlash of the fixing | fixed part 13 was removed, since the connection metal fitting 6 is pulled near by the connection bolt 3. FIG.

  Therefore, according to the joint structure of the present invention, the vertical member for building can be used without requiring high accuracy in the formation position of the insertion hole 8 to the horizontal member 2 for building or depending on the quality of the cross member 2 for building. It is possible to join the crosspiece 2 for building 1 with no backlash and with high positional accuracy, and the building is shaken by the influence of an earthquake or strong wind, and the vertical member 1 for building and the crosspiece 2 for building are separated. Even if there is a load to be applied or a load that attempts to change the crossing angle of the building cross member 2 with respect to the building vertical member 1, there is a high-strength joint structure in which a joint portion without rattling can immediately exert a proof strength against this load. Will be realized.

  Further, for example, when the moving unit 14 is pulled and moved, the pulling transmission locking unit 15 that is locked to the fixed unit 13 and transmits a pulling force to the fixed unit 13 during the movement is moved to the moving unit. 14, the connecting bolt 3 is tightened and rotated to draw the moving part 14, and the pulling force is transmitted to the fixing part 13 via the drawing transmission locking part 15. 13 fixed backlashes can be reliably pulled and removed.

  Further, for example, a locking hole 7 is provided in the moving portion 14, and a locking body 9 inserted through an insertion hole 8 provided in the building cross member 2 is inserted into and locked in the locking hole 7. If the vertical member 1 for construction and the cross member 2 for construction are joined via the connecting fitting 6, the moving part 14 can be easily fixed to the transverse member-side fitting receiving hole 5, and therefore the connecting fitting 6 Since the moving part 14 as well as the fixing part 13 is fixed to the horizontal member side metal fitting housing hole 5 (the horizontal member 2 for building) by the locking body 9, a joining structure with higher strength is obtained. The fixed play due to the locking body 9 of the stop hole 7) can also be pulled and removed.

  A first embodiment of the present invention will be described with reference to FIGS.

  A present Example concerns the joining structure of the construction wood which joins the wooden construction vertical material 1 and the wooden construction crosspiece 2 at right angle.

  As shown in FIG. 4, the building vertical member 1 of the present embodiment employs a square member having a rectangular cross section, and a side portion on one side of the upper portion of the square member is cut into a substantially L shape in a side view. The vertical surface of the notch is used as a joint side surface for joining the end of the cross member 2 for building, and the horizontal surface below the joint side member is used as a support surface 17 for supporting the bottom surface of the end of the cross member 2 for building. It is comprised so that the lower surface of the edge part of the crosspiece 2 for construction can be supported on the bearing surface 17 in an interview state.

  In addition, a bolt through hole 4 is provided in the joint side surface portion of the building vertical member 1 so that the connecting bolt 3 is inserted therethrough so that the screw portion 10 at the tip of the bolt protrudes from the side surface portion of the building vertical member 1. .

  Specifically, as shown in FIG. 5 to FIG. 11, it passes between the opposing side surface portions of the joining side surface portion of the longitudinal member 1 for building and the opposite side surface portion opposite to the joining side surface portion. The bolt through hole 4 is provided, and the connecting bolt 3 is inserted into the bolt through hole 4 from the opposite side surface portion so that the screw portion 10 at the tip of the connecting bolt 3 penetrates and protrudes from the joint side surface portion.

  Further, the bolt through hole 4 is disposed at the center position in the lateral width direction of the side surface portion opposite to the joint side surface portion of the building vertical member 1 and a plurality of (at a certain small interval in the vertical direction at the center position ( In the drawing, it is provided in a four-sided state.

  Further, a vertical member side metal fitting storage hole 12 into which a part of a connecting metal fitting 6 to be described later is inserted and stored is recessed in the joint side surface portion of the building vertical member 1.

  Specifically, a recessed portion is formed by applying a seating process to a place where the plurality of bolt through holes 4 exist in the joint side surface portion of the longitudinal member 1 for building, and the recessed portion is formed on the longitudinal member side. The metal housing hole 12 is used.

  The vertical member side metal fitting storage hole 12 is formed in a vertically rectangular shape that is continuous in the vertical direction and has a relatively shallow depth (the hole length in the horizontal direction is short). A bolt tip portion of the connecting bolt 3 protrudes through the bolt through hole 4. Moreover, the preferable hole length of this vertical member side metal fitting accommodation hole 12 is a hole length longer than the bending deformation amount generate | occur | produced in the junction part of the vertical member 1 for construction, and the horizontal member 2 for construction, A hole length of about 1/20 of the height is good.

  Further, the joint side surface surrounding the entire circumference of the opening of the vertical member side metal fitting accommodation hole 12 is used as an abutting surface 16 for bringing the end portion of the building horizontal member 2 into surface contact. That is, since the vertical member side metal fitting storage hole 12 is formed in a hole that is surrounded by all four sides of the upper, lower, left, and right sides, when a part of the connection metal fitting 6 described later is inserted and stored in the vertical material side metal fitting storage hole 12, the connection metal fitting 6 is provided. However, it is difficult to shift the position vertically and horizontally.

  Further, the insertion hole 30 having a hole length in a direction orthogonal to the hole length of the bolt through hole 4 is made adjacent to the back side surface in the vertical member side metal fitting housing hole 12 and the bolt through hole 4 is avoided. By penetrating and forming in a plurality of locations (four locations spaced apart in the vertical direction in the drawing) of the longitudinal member 1 for building, and inserting and locking the drift pin 9 as the locking body 9 in each insertion hole 30, The plurality of locking bodies 9 are configured to prevent a moving portion 14 of a connecting metal fitting 6 to be described later from being deeply recessed into the back side surface in the longitudinal member side storage hole 12. That is, when a load is applied such that the end of the cross member 2 for building pushes the joint side surface portion of the vertical member 1 for construction, the moving portion 14 of the connecting fitting 6 accommodated in the vertical member-side fitting accommodation hole 12 becomes vertical. It moves so as to rotate in the material side metal fitting housing hole 12, and the protruding tip of the moving part 14 tries to dig into the back side surface in the vertical material side metal fitting housing hole 12. The projecting tip portions of 14 are supported by a plurality of locking bodies 9 to form a joint structure that strongly resists indentation.

  Further, as shown in FIG. 5, the vertical member 1 for building forms a countersink portion 25 by applying a countersink process to a portion where the plurality of bolt through holes 4 exist on the opposite side surface portion. The connecting bolt 3 can be inserted and disposed in the bolt hole 4 while the washer 26 is housed together with the bolt head of the connecting bolt 3 adopting a long hexagonal bolt in the turned portion 25.

  In addition, the counterbore part 25 is formed in a shape that is continuous in the vertical direction, and all the bolt through holes 4 are arranged in the counterbore part 25, while the washer 26 also has a length in the vertical direction. It has a strip plate shape having a plurality of bolt holes 27 in the vertical direction (four locations in the drawing), and a single washer 26 having a length in the vertical direction is attached to all of the plurality of connecting bolts 3. It is configured to cover the functions of

  Therefore, since this washer 26 having a length in the vertical direction is subjected to surface-polymerization on the building vertical member 1 in a wide area, the fastening force of the connecting bolt 3 is dispersed and acts on a wide range of the building vertical member 1. It is set as the structure which is hard to dig into the vertical material 1 for construction, and is hard to damage the vertical material 1 for construction.

  Further, in this embodiment, the vertical member 1 for building in which the bolt through hole 4, the bearing surface 17, the vertical member side metal fitting receiving hole 12, the insertion hole 30, and the counterbore portion 25 are precut is used. It is configured to do.

  The cross member 2 for building of this embodiment employs a square member having a rectangular cross section, and is provided with a cross member side metal fitting storage hole 5 into which a connecting metal fitting 6 to be described later is inserted and stored.

  Further, the cross member-side metal fitting receiving hole 5 is formed by forming a concave hole in the axial center of the cross member 2 for building 2 that does not penetrate to the opposite side, and the cross hole 5 is formed of the cross member 2 for building. It is formed in a square hole that is in the shape of a vertical rectangle that is synchronized with the outer shape of the building and that is slightly smaller in diameter than the outer shape of the building cross member 2. That is, since the horizontal member side metal fitting storage hole 5 is formed in a hole surrounded by all four sides of the upper, lower, left and right sides, when a connecting metal fitting 6 to be described later is inserted and stored in the horizontal member side metal fitting storage hole 5, the connecting metal fitting 6 is moved up, down, left and right. The structure is difficult to shift in the direction.

  More specifically, the cross member side metal fitting storage hole 5 is a square hole having the same shape as the vertical material side metal fitting storage hole 12 of the building vertical member 1 and is deeper than the vertical material side metal fitting storage hole 12. It is formed in a deep hole (horizontal hole length is long).

  That is, the transverse member side metal fitting storage hole 5 is recessed in the end portion of the building horizontal member 2 and the vertical member side metal fitting storage hole 12 is opposed to the joint side surface portion of the building vertical member 1. When the end of this crosspiece 2 for construction is abutted against the joint side face of the vertical member 1 for construction and the lower surface of the end of the crosspiece 2 is supported on the support surface 17 of the vertical member 1, the same The horizontal member-side metal fitting storage hole 5 and the vertical member-side metal fitting storage hole 12 having the same shape and different hole lengths are exactly aligned with each other and are in communication with each other, so that a storage space for the connecting metal fitting 6 described later is formed. doing.

  Moreover, as shown in FIGS. 3-5, it is made to penetrate between the opposing side parts in the horizontal direction in the side part of the edge part of the horizontal member 2 for construction, and is connected to the said horizontal member side metal fitting accommodation hole 5. A plurality of insertion holes 8 are formed in a scattered state, and a plurality of the insertion holes 8 are formed so that the number and arrangement correspond to the respective locking holes 7 of the fixing portion 13 and the moving portion 14 described later. The drift pin 9 as the locking body 9 is inserted into the insertion hole 8 and can be press-fitted and locked.

  Moreover, the cross member 2 for a building of a present Example is set as the structure which uses what the said cross member side metal fitting accommodation hole 5 and the said insertion hole 8 were pre-cut.

  In the present embodiment, a connecting metal fitting 6 is disposed in the horizontal metal member receiving hole 5 provided at an end portion of the architectural horizontal material 2 so as to be movable and connected to the connecting metal 6. A threaded portion 11 is provided through which the threaded portion 10 of the connecting bolt 3 that penetrates and protrudes from the joint side surface portion passes through the bolt through-hole 4 provided in the joint. The connection fitting 6 screwed to the connection bolt 3 is configured to be drawn and moved in a direction to be pulled out from the cross member-side fitting storage hole 5.

  Specifically, as shown in FIGS. 1 to 3, the connection fitting 6 of the present embodiment is formed in a rectangular flat plate shape having a thickness that can be inserted into the cross member-side fitting storage hole 5.

  Further, the connecting metal fitting 6 is configured so that it can be inserted into the horizontal member side metal fitting receiving hole 5 in a state where the long side direction thereof is in the vertical direction. When the insertion end is inserted into the hole 5 as far as it will go, this insertion base end side surface is positioned adjacent to the opening of the cross member side metal fitting accommodation hole 5 so as to be substantially flush with the end of the cross member 2 for construction. The shape of the metal fitting 6 and the hole length of the cross member side metal fitting housing hole 5 are set and configured.

  Further, the connecting metal fitting 6 will be described in more detail. A fixing portion 13 that is stored and fixed in advance in the inner side of the cross member-side metal fitting receiving hole 5 of the building cross member 2, A moving part 14 provided so as to be able to be pulled and moved, the screwing part 11 is provided in the moving part 14, and the connecting bolt 3 screwed to the screwing part 11 of the moving part 14 is rotated, An attracting transmission mechanism for transmitting this attracting force to the fixing portion 13 when the moving portion 14 accommodated in the transverse member side metal fitting housing hole 5 is attracted and moved with respect to the fixing portion 13 in a non-rotating state. A stop 15 is provided on the moving part 14.

  Further, the fixing portion 13 of the connecting metal fitting 6 is constituted by a pair of left and right plate members 18 inserted and arranged in the horizontal member side metal fitting receiving hole 5 provided at the end of the building horizontal member 2. When the pair of left and right plate members 18 are superposed on the left and right side surfaces (of the thin portion 22 to be described later) of the moving portion 14, the respective plate members 18 are exposed as the outer surface of the connection fitting 6.

  Further, as shown in FIG. 1, the pair of left and right plate members 18 are formed of a vertically rectangular metal thin plate, and the upper and lower end portions of each plate member 18 are bent at substantially right angles toward the inner sides of the plates. As a result, a guide portion 19 is formed which is superposed along the upper and lower surface portions (of the thin portion 22 described later) of the moving portion 14. That is, the upper and lower guide portions 19 are used as slide guides, and the moving portion 14 is configured to be horizontally slidable with respect to the fixed portion 13 (a pair of left and right plate members 18). Further, the upper and lower guide portions 19 are configured to function also as reinforcing ribs for preventing deformation of the plate member 18 (a locking hole 7 described later).

  In addition, each plate member 18 is also bent at a substantially right angle toward the opposite inner side with respect to the insertion tip side with respect to the horizontal member side metal fitting housing hole 5 to prevent deformation of each plate member 18 (locking hole 7 described later). Reinforced ribs for 20 and so on.

  Each of the upper and lower guide portions 19 has an insertion tip side edge with respect to the cross member side metal fitting housing hole 5 as an engaging portion 21 to which a pulling transmission locking portion 15 described later is locked.

  Further, the pair of left and right plate members 18 are provided with locking holes 7 for inserting and locking the locking members 9 inserted through the insertion holes 8 provided in the building cross member 2. A plurality of scattered states are provided so as to penetrate in the plate thickness direction.

  Of the plurality of locking holes 7, in this embodiment, several portions of the pair of left and right plate members 18 existing on the insertion tip side with respect to the horizontal member side metal fitting housing hole 5 (in the drawing, the vertical direction of the plate member 18). The middle two locking holes 7 are used as initial fixing locking holes 7A, and the engaging holes 7A are inserted into the initial fixing locking holes 7A from the insertion holes 8 provided in the building cross member 2. The fixing portion 13 is fixed in advance in the cross member side metal fitting housing hole 5 of the building cross member 2 by inserting and locking the stop body 9, and the moving portion 14 of the connecting metal member 6 is It is configured to be provided so as to be able to be drawn and moved in a direction protruding from the inside of the cross member side metal fitting housing hole 5 with respect to the fixed portion 13 in the fixed state.

  In addition, the fixing portion 13 is configured to set the formation position of the insertion hole 8 on the cross member 2 for construction so that the fixing portion 13 is disposed and fixed at the innermost side position in the cross member side metal fitting housing hole 5 and fixed thereby. The portion 13 is fixed at a position away from the joint portion between the timbers, and exhibits a strong resistance to a load that attempts to change the crossing angle of the crosspiece 2 for building.

  Further, the moving portion 14 of the connecting bracket 6 is formed of a thick vertical rectangular metal plate, leaving a part on the protruding tip side that is to protrude from the transverse member-side bracket housing hole 5. The base end side (the tip end side from this, leaving a part of the insertion base end side with respect to the cross member side metal fitting housing hole 5) is formed in the thin portion 22 whose outer diameter is smaller than this, and this thin portion 22 is formed. When the left and right pair of plate members 18 are fitted to the left and right side portions from the outside and polymerized along the side, the outer surfaces of the pair of left and right plate members 18 are substantially flush with the outer surface of the insertion base end portion of the moving portion 14. Thus, a rectangular flat plate-shaped connecting metal fitting 6 that can be inserted into the transverse member side metal fitting housing hole 5 is completed.

  Further, the projecting tip portion of the moving portion 14 from the horizontal member side metal fitting accommodation hole 5 is accommodated in the vertical material side metal fitting accommodation hole 12 by the drawing movement of the moving portion 14, as shown in FIG. Further, a female screw hole 11 as a screwing portion 11 for screwing the screw portion 10 at the tip of the connecting bolt 3 is provided on the side surface of the projecting tip of the moving portion 14.

  Further, a plurality (four in the drawing) of the screwed portions 11 are provided side by side in correspondence with the positions of the plurality of bolt through holes 4.

  Further, in this embodiment, when the end lower surface of the building cross member 2 is supported and temporarily fixed to the support surface 17 of the building vertical member 1, the bolt through holes 4 and the cross member side metal fitting storage holes are provided. 5 and the respective screwed portions 11 of the connecting metal fitting 6 (moving portion 14) housed in the same position, the screw portions 10 of the connecting bolt 3 are screwed in the temporarily fixed state. The formation positions of the bolt through hole 4, horizontal member side metal fitting storage hole 5, screwing part 11, vertical material side metal fitting storage hole 12, and bearing surface 17 are set and configured so that they can be easily screwed to each other. When the connecting bolt 3 screwed to the screwing part 11 is further tightened and rotated, the moving part 14 moves in a direction in which the moving part 14 protrudes from the side metal fitting housing hole 5 with respect to the fixed part 13 in the fixed state. It moves so that it may be drawn, and a part of the insertion base end portion of the moving portion 14 is accommodated in the vertical member side metal fitting accommodation hole 12.

  Further, the thin portion 22 of the moving portion 14 is locked when the moving portion 14 is pulled and the pulling force is transmitted to the fixing portion 13 to fix the locking hole 7 and the locking body 9 to the fixed backlash. The pulling transmission locking portion 15 is provided, and the fixing body 13 is removed, and then the locking body 9 inserted through the insertion hole 8 of the building cross member 2 is inserted and locked. A plurality of the locking holes 7 are provided in a scattered state so as to penetrate the thin portion 22 in the plate thickness direction.

  More specifically, the thin-walled portion 22 is integrally provided with claw-shaped attracting transmission locking portions 15 on the upper and lower portions of the insertion tip portion with respect to the transverse member side metal fitting receiving hole 5, and moved. When the portion 14 slides in the pulling direction with respect to the fixed portion 13, the upper and lower pulling transmission locking portions 15 are locked to the engaging portions 21 of the plate member 18 during the pulling movement. It is said.

  Further, the respective locking holes 7 provided in the moving portion 14 are formed so that the number and arrangement thereof correspond to the respective locking holes 7 provided on the insertion base end side of the fixing portion 13 with respect to the transverse member side metal fitting housing hole 5. In addition, the moving portion 14 is moved in the pulling direction with respect to the fixed portion 13 so that the pulling transmission locking portion 15 is moved to the insertion proximal end side of the fixed portion 13 at a position immediately before being locked to the engaging portion 21. The formation position is set and configured so as to be just in communication with each of the provided locking holes 7.

  Further, the moving portion 14 is located at the middle in the vertical direction of the end surface on the fixed portion 13 side of the thin portion 22 existing on the side opposite to the protruding tip portion from the cross member side metal fitting housing hole 5 toward the protruding tip side. As shown in FIG. 6, the locking body 9 inserted and locked in each of the initial fixing locking holes 7 </ b> A of the fixing portion 13 is positioned in the concave portion 23 as shown in FIG. 6. The locking body 9 inserted and locked in each of the initial fixing locking holes 7A is configured not to obstruct movement of the moving portion 14 in the pulling direction.

  Further, each of the locking holes 7 of the present embodiment is set to have a diameter slightly larger than the outer diameter of the locking body 9 (drift pin 9) inserted into the locking hole 7 and inserted therethrough. Thus, the locking body 9 can be inserted and inserted into the locking hole 7 without resistance.

  Further, when the moving part 14 is pulled and moved, the engaging hole 7 of the moving part 14 is just in communication with the engaging holes 7 provided on the insertion base end side of the fixing part 13 (each engaging part of the moving part 14). When the stop holes 7 and the respective locking holes 7 of the fixing portion 13 are aligned), the protruding tip side surface of the moving portion 14 housed in the longitudinal member-side bracket housing hole 12 and the longitudinal member-side bracket housing hole 12 so that a gap which is the same as or slightly larger than the dimensional difference between the hole diameter of the locking hole 7 and the outer diameter of the locking body 9 is formed between the inner surface and the inner side surface. The formation position of the hole 7 in the connection fitting 6 and the formation position of the insertion hole 8 on the side surface of the building cross member 2 are set and configured.

  Accordingly, after the locking body 9 is inserted and locked in each locking hole 7 provided on the insertion base end side of the fixed portion 13 and the locking hole 7 of the moving portion 14 which are just in communication, the connecting bolt 3 When the tightening rotation is performed, the moving portion 14 further moves in the pulling direction, so that the hole edge of the locking hole 7 of the moving portion 14 contacts the outer peripheral surface of the locking body 9 without a gap, and the locking body 9 The hole edge of the locking hole 7 of the fixing portion 13 comes into contact with the outer peripheral surface on the opposite side without any gap, and the fixing backlash between each locking hole 7 and each locking body 9 (fixing backlash of the connecting bracket 6). Is configured to be removed.

  Further, here, the connecting bolt 3 according to the present embodiment will be described in detail. Only a small range of the tip portion is formed in the screw portion 10 to be screwed to the screw portion 11, and the bolt head side from the screw portion 10 is located on the bolt head side. The screwless portion 24 is formed. Further, the screw portion 10 and the screwless portion 24 are configured to have substantially the same diameter as the hole diameter of the bolt through hole 4.

  Next, the joining method of the building vertical member 1 and the building cross member 2 of the present embodiment will be described.

  Insert and store the connecting bracket 6 in a state where the end portion of the cross member 2 for construction is contracted in the horizontal member-side bracket receiving hole 5 (the moving portion 14 is not moved in the pulling direction with respect to the fixed portion 13). Then, the locking member 9 is inserted and locked from the insertion hole 8 corresponding to the initial fixing locking hole 7A of the fixing part 13 of the connecting bracket 6 where the end of the cross member 2 for building is located farthest. And the fixing | fixed part 13 is fixed in the horizontal member side metal fitting accommodation hole 5 (refer FIG. 3).

  Further, in the drawing, a temporary fixing locking hole 29 for inserting the temporary fixing body 28 is formed at the upper and lower portions of the thin portion 22 near the protruding tip side of the moving portion 14, and the temporary fixing locking hole 29 is formed in the temporary fixing locking hole 29. Correspondingly, a temporary fixing body 28 adopting a bolt 28 is inserted from the insertion hole 8 formed in the cross member 2 for construction so that the moving part 14 does not move relative to the fixed part 13 (the moving part 14 is a cross member). The state in which it is stored in the side metal fitting storage hole 5 is maintained), so that the connecting metal fitting 6 does not hinder the end of the cross member 2 for construction against the joint side surface of the vertical member 1 for construction. This is the case.

  In addition, the locking body 9 is inserted and fixed in advance into the insertion hole 30 of the longitudinal member 1 for construction.

  When the end of the building cross member 2 is lowered from above with respect to the vertical member 1 for building and the lower surface of the end of the building cross member 2 is supported on the support surface 17 of the building vertical member 1, the vertical member side metal fitting storage hole 12 and the transverse member side metal fitting housing hole 5 are in communication with each other, and the bolt through hole 4 of the building vertical member 1 and the screwed portion 11 of the moving portion 14 of the connecting metal fitting 6 are positioned in substantially the same straight line. Therefore, the connecting bolt 3 is inserted through the washer 26 (bolt hole 27) from the opposite side surface portion of the building vertical member 1 into the bolt through hole 4 and the screw portion 10 is screwed into the screw portion 11. (See FIGS. 4 and 5.) In the drawing, a case where the connecting bolt 3 is inserted only into the bolt through holes 4 at the upper and lower portions and screwed to the screwing portion 11 is shown.

  Next, when each connecting bolt 3 is tightened and rotated, the moving part 14 of the connecting metal fitting 6 moves so as to be drawn toward the fixed part 13 in a direction protruding from the side member side metal fitting housing hole 5. A part of the moving part 14 is accommodated in the longitudinal member side metal fitting accommodation hole 12 of the joining side surface part of the longitudinal member 1 for construction (see FIGS. 6 and 7).

  That is, the connecting metal fitting 6 is arranged so as to be bridged between the joined side surface portion of the building vertical member 1 and the end portion of the cross member 2 for construction.

  Subsequently, when the connecting bolt 3 is tightened and rotated, the drawing transmission locking portion 15 of the moving portion 14 is locked to the engaging portion 21 of the fixing portion 13 during the pulling movement, and the pulling force of the moving portion 14 is pulled. Is also transmitted to the fixing portion 13 (the fixing portion 13 is also drawn), and the fixing play between the initial fixing locking hole 7A of the fixing portion 13 and the locking body 9 inserted and locked therein is fixed. Will eventually be drawn from the building cross member 2 and the end of the building cross member 2 will be in close contact with the joint side surface of the building vertical member 1, and there will be more connecting bolts. 3 cannot be tightened and rotated (see FIG. 8).

  However, in a state in which the attracting transmission locking portion 15 is locked to the engaging portion 21, the locking hole 7 of the moving portion 14 and the locking hole 7 on the insertion base end side of the fixing portion 13 are displaced. Since the locking body 9 cannot be inserted and locked, the connecting bolt 3 is slightly loosened, and the locking hole 7 of the moving part 14 and the locking hole 7 on the insertion base end side of the fixing part 13 are just in communication. The locking body 9 is driven from the insertion holes 8 of the building cross member 2 into all the locking holes 7 in this communication state and the remaining locking holes 7 of the fixing portion 13. (See FIGS. 9 and 10).

  Next, when the connecting bolt 3 is tightened and rotated and the moving part 14 is drawn again, a part of the hole edge of each locking hole 7 moves closer to a part of the outer peripheral surface of each locking body 9, The connecting bolt 3 is tightened and rotated until a part of the hole edge of the locking hole 7 comes into contact with a part of the outer peripheral surface of the locking body 9 without a gap (the fixed backlash between the fixed part 13 and the moving part 14 is changed). After removal, the construction (joining) is completed (see FIG. 11).

  In addition, it is not necessary to turn the connecting bolt 3 until the pulling transmission locking portion 15 of the moving portion 14 is locked to the engaging portion 21 of the fixing portion 13 and then to loosen it once. While looking through the hole 8 and tightening and rotating the connecting bolt 3, it is confirmed that the locking hole 7 of the moving part 14 and the fixing part 13 is just in communication, and the remaining locking hole 7 and the remaining part of the fixing part 13 are in communication. After the locking body 9 is inserted and locked into the locking hole 7 from the insertion hole 8, the connecting bolt 3 is tightened and rotated again to remove the fixed play between the locking hole 7 and the locking body 9. You may do it.

  In the joining structure of this embodiment, the fixing backlash of each locking body 9 with respect to each locking hole 7 (fixing backlash with respect to the building cross member 2 of the connecting bracket 6) is removed, so that the extremely strong joining structure and Become. In this joined state, as described above, the fixing play between the locking hole 7 and the locking body 9 is removed, and the connecting metal fitting 6 is the horizontal member side metal fitting housing hole at the end of the building cross member 2. 5 and the vertical member-side metal fitting storage hole 12 of the vertical member 1 for building are housed in a bridged state, the vertical member 1 for building and the horizontal member 2 for building are misaligned with respect to the connecting metal fitting 6. It becomes difficult (it is difficult for the horizontal member 2 for construction to shift in the surface direction of the joint side surface portion of the vertical member 1 for building), and it becomes a strong joined state. In addition, although the connecting metal fitting 6 has a structure that moves while being pulled, the connecting metal 6 is such that the moving part 14 is drawn and moved with respect to the fixed part 13. As a result, there is no gap due to the movement of the metal member, and therefore, a large number of locking bodies 9 can be locked and firmly fixed in the formation range of the cross member side metal fitting accommodation hole 5.

  12 and 13 show another example of use of the present embodiment.

  Specifically, the construction lumber joint structure of the present embodiment is combined with a joint metal 31 having a U-shaped cross section equivalent to the above-mentioned Patent Document 1, and a plurality of construction cross members with respect to the construction vertical member 1. This is a case where 2 are joined in different directions.

  Specifically, the counter-boring portion 25 is not provided on the opposite side surface portion of the building vertical member 1, and the vertical member fixing portion 32 of the joint metal fitting 31 is brought into contact with the opposite side surface portion, and the joint metal fitting 31 is attached to the washer 26. The connecting bolt 3 is fixed to the opposite side surface portion, and the pair of left and right horizontal member connecting plate portions 33 projecting from the vertical member fixing portion 32 is engaged with the end portion 35 of the other cross member 2 for construction. It is joined by a stop 9.

  Further, the joint fitting 31 is fixed to the side face portion orthogonal to the joint side face portion of the building vertical member 1 by the metal fitting bolt 34, and the end of the other building cross member 2 is connected by the joint fitting 31. The portion 35 is joined by the locking body 9.

  Thus, this joint structure can be used in combination with a joint structure using the existing U-shaped joint metal fitting 31.

  A second embodiment of the present invention will be described with reference to FIG.

  This example is a case where the insertion hole 30 is provided in the building cross member 2 without forming the insertion hole 30 in the building vertical member 1 in the first embodiment. Although not shown, the insertion hole 30 may be formed in both the vertical member 1 for building and the horizontal member 2 for building.

  Specifically, the insertion hole 30 having a hole length in a direction parallel to the hole length of the insertion hole 8 is constructed adjacent to the inner side surface of the cross member-side metal fitting receiving hole 5 of the cross member 2 for building. By penetrating and forming at a plurality of positions (four positions spaced apart in the vertical direction in the drawing) of the cross member 2 for use, and inserting and locking the drift pins 9 as the locking bodies 9 into the respective insertion holes 30, The plurality of locking bodies 9 are configured to prevent the fixing portion 13 of the connecting metal fitting 6 from being deeply recessed into the back side surface in the cross member side metal fitting housing hole 5. That is, when a load is applied such that the end of the cross member 2 for building pushes the joint side surface portion of the vertical member 1 for construction, the fixing portion 13 of the connecting fitting 6 housed in the cross fitting side hole 5 is laterally moved. It moves so as to rotate in the material side metal fitting housing hole 5 and the insertion tip of the fixing portion 13 tries to dig into the back side surface in the side material side metal fitting housing hole 5. A joining structure is provided in which a plurality of insertion tip portions 13 are supported by a plurality of locking bodies 9 and strongly resist indentation.

  Other configurations are the same as those of the first embodiment.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Construction vertical member 2 Architectural cross member 3 Connecting bolt 4 Bolt through hole 5 Cross member side metal fitting accommodation hole 6 Connecting metal fitting 7 Locking hole 8 Insertion hole 9 Locking body
10 Screw part
11 Screwed part
12 Vertical material side metal fitting storage hole
13 Fixed part
14 Moving part
15 Locking part for drawing transmission
16 Abutting surface
17 Bearing surface
18 Plate body
30 insertion hole

Claims (7)

  It is a joining structure of building wood that joins a wooden building vertical member and a wooden building cross member in a right angle or an inclined state, and a joining side part that joins the building cross member of the building vertical member; A bolt through hole for inserting a connecting bolt is provided in the building vertical member from the opposite side surface portion on the opposite side to the joint side surface portion, and a cross member side metal fitting storage hole is provided in an end portion of the building cross member. A connecting bracket is movably disposed in the metal-side bracket housing hole, and the connecting bolt threaded through the bolt through hole provided in the building vertical member and protrudes from the joint side surface portion. By providing a screwed portion to which the portion is screwed and rotating the connecting bolt, the connecting metal fitting screwed to the connecting bolt is drawn and moved in a direction to be pulled out from the side metal fitting receiving hole. The connecting bracket is configured in front of the building cross member in advance. It is composed of a fixed portion that is fixed in the transverse member side metal fitting receiving hole, and a moving portion that is provided so as to be able to be drawn and moved with respect to the fixed portion. The screwed portion is provided in the moving portion, and the screwed portion of the moving portion is By rotating the screwed connection bolt, the pulling force is fixed when the moving part housed in the transverse member side metal fitting housing hole is pulled and moved with respect to the fixed part in a non-rotating state. A lumber joining structure for building, characterized in that a latching part for attracting transmission for transmitting to the part is provided.   When the moving part is pulled and moved, the pulling transmission locking part for locking the fixed part and transmitting the pulling force to the fixed part during the movement is provided in the moving part, and the connecting bolt is After tightening and rotating to pull the moving part, the pulling force is transmitted to the fixing part via the pulling transmission locking part to pull and remove the fixed play of the fixing part, and the moving part is provided. The locking body inserted from the insertion hole provided in the building cross member is inserted and locked into the locking hole, and the building vertical member and the building cross member are joined via the connection fitting. 2. The construction structure for construction wood according to claim 1, wherein the construction structure is a construction.   The fixing portion of the connecting metal fitting is a plate material body that is inserted and disposed in the horizontal material side metal fitting storage hole provided at an end portion of the architectural cross member, and the locking hole provided in the plate material body is used for the building material. The locking member inserted through the insertion hole provided in the cross member is inserted and locked in advance so as to be fixed in advance in the cross member side metal fitting storage hole of the building cross member, and the moving part of the connecting metal member is , Provided so as to be able to be drawn and moved in a direction protruding from the transverse member side metal fitting housing hole with respect to the fixed portion, and is locked when the moving portion is drawn to transmit the pulling force to the fixed portion to A locking portion for removing the fixed play between the hole and the locking body is provided, and after the fixed play of the fixed portion is removed, the lock is inserted through the insertion hole provided in the building cross member. It is characterized by having a structure provided with a locking hole for inserting and locking the body Joining structure of construction timber according to any one of claims 1, 2 that.   A vertical member side metal fitting receiving hole for accommodating a part of the moving portion of the connecting metal fitting to be drawn and moved is provided in the joint side surface portion through which the connection bolt of the building vertical material penetrates and protrudes. The locking hole for inserting and locking the locking body inserted from the insertion hole provided in the building cross member after the part of the moving part of the coupling fitting is pulled and moved and stored in the storage hole. The structure for joining building wood according to any one of claims 1 to 3, wherein the connecting structure is provided at a moving portion of the connecting metal fitting.   The transverse member side metal fitting housing hole is recessed in the end portion of the building transverse member, and the vertical member side metal fitting housing hole is recessed in the facing state in the joint side surface portion of the building vertical member, The connecting metal fitting is accommodated in the material side metal fitting receiving hole, the fixing portion is fixed in the horizontal material side metal fitting receiving hole, and the end portion of the building horizontal material is abutted and arranged on the joint side surface portion of the building vertical material. Then, the threaded portion of the connecting bolt that protrudes from the vertical member for construction is screwed to the threaded portion provided at the end of the moving portion of the connecting bracket, and the connecting bolt is rotated. The moving part of the connecting bracket is screwed to draw and store the end of the moving part in the vertical member side metal fitting receiving hole, and the insertion of the building cross member into the locking hole provided in the moving part. The structure which inserts and locks the said latching body penetrated from the hole, and joins the said vertical material for construction and the said horizontal material for construction Joining structure of construction timber according to claim 4, characterized in that.   The vertical member side metal fitting housing hole is recessed in the joint side surface portion of the building vertical member, and the joint side surface portion of the upper portion of the vertical material side metal fitting housing hole is used as an abutment surface of the end portion of the building horizontal member. 6. The vertical member for construction according to any one of claims 4 and 5, wherein the vertical member for construction is formed in a shape having a bearing surface for supporting the lower surface of the end of the horizontal member for construction at the lower part of the metal fitting housing hole. 2. A construction structure for building wood as set forth in claim 1.   The building vertical member is provided with an insertion hole for inserting and locking the locking member in a state adjacent to the vertical member side metal fitting receiving hole, or the building horizontal member is provided with the horizontal member side metal fitting receiving hole. 7. The construction wood joining structure according to any one of claims 4 to 6, wherein an insertion hole for inserting and locking the locking body in an adjacent state is provided.

Images