JP2013014932A - Joint structure for construction timber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure for construction timber in which there is no backlash in a connecting portion between a construction vertical material and a construction horizontal material.SOLUTION: A bolt hole 4 is provided on a side surface part of a construction vertical material 1, a metal fitting insertion hole 5 is provided in a terminal part of a construction horizontal material 2, and a horizontal material fixing metal fitting 6 is inserted into the metal fitting insertion hole 5. A lock body 9 is inserted and locked into an insertion hole 7 formed in the horizontal material fixing metal fitting 6 and a lock hole 8 formed on a side surface part of the construction horizontal material 2 communicated to the insertion hole 7, the horizontal material fixing metal fitting 6 is fixed in the metal fitting insertion hole 5, and a screw part 10 to which a joint bolt 3 can be screwed is provided at an insertion proximal end side of the horizontal material fixing metal fitting 6, the joint bolt 3 inserted and disposed in the bolt hole 4 is screwed and fastened to the screw part 10, so that the terminal part of the construction horizontal material 2 is made closer and joined to the side surface part of the construction vertical material 1 together with the horizontal material fixing metal fitting 6.

Description

  The present invention relates to a construction structure of construction wood, for example, joining construction vertical members such as wooden pillars and construction cross members such as wooden beams.

  As a conventional joint structure of building wood, there is a structure using a U-shaped or U-shaped joint tool as disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-104343 (Patent Document 1).

  Specifically, a vertical member fixing portion 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 portion and are connected to a joint portion at the end of the horizontal member for building. A joint tool having a U-shaped or U-shaped cross section composed of a connecting plate portion is used.

  A plurality of bolt holes through which connecting bolts penetrating and projecting from the side surface of the vertical member are provided in the vertical member fixing portion of the vertical member in a vertically arranged state. Each of the plate portions has an insertion hole for inserting a locking body (drift pin) that is inserted into and fixed to an engagement hole formed in the joint portion as an end portion of the cross member, A jaw hooking recess for connecting the uppermost locking body inserted and fixed in the locking hole into a hooked state is provided.

  For example, first, the vertical member fixing portion of the joint tool is fixed to the side surface of the vertical member by a connecting bolt penetrating a bolt insertion hole provided in a penetrating manner between the opposing side surfaces of the vertical member.

  Next, while inserting and arranging the cross member connecting plate portion of the joint tool in the joint portion of the cross member, the locking body that has been inserted and fixed in advance in the uppermost locking hole of the joint portion is described above. It mounts and supports from the upper part to the chin hanging recessed part of a cross member connection board part, and it connects with a latching state.

  After that, the remaining locking hole of the joint portion and the insertion hole of the cross member connecting plate portion are communicated with each other, and the locking body is driven and fixed, and the cross member connecting plate portion is fixed to the cross member. It is the structure which joins and connects to a mouth part, and thereby joins a vertical member and a cross member in a right angle or an inclined state.

JP 2000-104343 A

  In the joint alloy tool as described above, the hole diameter of the insertion hole is set to be slightly larger than the outer diameter of the locking body for the purpose of improving workability when driving the locking body.

  However, the gap generated between the insertion 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 with respect to the building vertical member and decreases the structural strength. There are concerns.

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

  Briefly explaining this “pulling”, for example, the locking hole formed in the end portion of the cross member is set to the inner side of the cross member from the inside of the cross member according to the difference in diameter between the insertion hole and the locking body ( It is formed so that it is located on the center side of the length direction of the cross member, and when the locking body is driven into the locking hole and the locking body is inserted into the insertion hole, the horizontal member connection of the insertion hole The outer peripheral surface of the side portion of the locking body is in contact with the hole edge on the front end side of the plate portion so that the cross member is attracted to the side surface portion of the vertical member. The wobbling of the stationary body does not occur, and the above-mentioned concerns are solved.

  However, this “pulling” requires high accuracy in the position of the locking hole formed at the end of the cross member, and even if the position accuracy of the locking hole can be secured, the cross member shrinks due to drying. If this happens, the positional relationship between the locking hole and the insertion hole will be out of order, and it has been necessary to use wood that does not shrink easily.

  The present invention was completed after the development of products in view of such a current situation, and requires a high accuracy in the position of the locking hole formed in the cross member for building or depends on the quality of the cross member. The cross member can be pulled and joined to the vertical member without any backlash, and there is no backlash at the connecting part (locking body and insertion hole) between the vertical member for building and the cross member for building. It provides a breakthrough construction structure for building wood.

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

  It is a joining structure of building wood that joins a wooden building vertical member 1 and a wooden building cross member 2 at right angles or in an inclined state, and a joining bolt 3 is attached to a side surface of the building vertical member 1. Is provided with a bolt insertion hole 4, a metal fitting insertion hole 5 is provided at the end of the building cross member 2, and a horizontal member fixing metal fitting 6 is inserted and arranged in the metal fitting insertion hole 5. By inserting and locking the locking body 9 into the insertion hole 7 formed in the fixing bracket 6 and the locking hole 8 formed in the side surface portion of the building cross member 2 communicating with the insertion hole 7. The transverse member fixing metal fitting 6 is inserted and fixed in the metal fitting insertion hole 5, and the hole diameter of the insertion hole 7 is set larger than the outer diameter size of the locking body 9. When the end portion of the constructed horizontal member 2 is brought into contact with the side surface portion of the vertical member 1 for building, the insertion proximal end side of the horizontal member fixing bracket 6 and the vertical member for building are provided. The insertion hole 7 is formed in the transverse member fixing bracket 6 so that a gap larger than the difference between the hole diameter dimension of the insertion hole 7 and the outer diameter dimension of the locking body 9 is generated between the side hole portion and the side surface portion. The position or the formation position of the locking hole 8 on the side portion of the cross member 2 for building is set, and the cross member fixing metal fitting 6 has the joining bolt 3 on the base end side of insertion into the metal fitting insertion hole 5. A screwing portion 10 that can be screwed is provided, and the joining bolt 3 that is inserted into the bolt through hole 4 and protruded is screwed into the screwing portion 10 and the joining bolt 3 is tightened. Then, the end of the building cross member 2 together with the cross member fixing metal fitting 6 is drawn to the side surface of the building vertical member 1 and joined. Is.

  In addition, a plurality of the bolt through holes 4 are provided in a side-by-side direction of the vertical member for building 1 in the vertical direction, and the insertion base end of the cross member fixing bracket 6 is associated with the plurality of bolt through holes 4. 2. The construction wood joining structure according to claim 1, wherein a plurality of the threaded portions are provided in a side-by-side direction on the side.

  In addition, a support step surface 13 for supporting the lower surface of the end of the building cross member 2 in a face-contact state is formed in the side surface portion of the building vertical member 1, and the building cross member is formed on the support step surface 13. When the lower surface of the two end portions is supported, the support step surface 13 is formed so that the bolt front end portion of the joining bolt 3 inserted and disposed in the bolt through hole 4 and the screwed portion 10 are in a standing state. The formation position is set, and it relates to the joint structure of building wood according to any one of claims 1 and 2.

  Further, a plate-shaped metal pedestal body 14 is fixed to the side surface portion of the longitudinal member 1 for construction by subjecting one side plate surface thereof to the side surface portion of the longitudinal member 1 for construction, and is fixed. A through-hole 15 is provided for communicating with the bolt through-hole 4 and through which the bolt tip of the joining bolt 3 inserted and disposed in the bolt through-hole 4 is projected, and the other side plate surface of the base body 14 is used as a bracket receiving surface portion. 16, a joint surface portion 17 that can be surface-polymerized on the metal fitting receiving surface portion 16 is provided on the proximal end side of the transverse member fixing metal fitting 6 into the metal fitting insertion hole 5, and the screwing portion 10 is attached to the joint surface portion 17. And screwing the bolt tip portion of the joining bolt 3 projecting from the through-hole 15 through the bolt through hole 4 and tightening the joining bolt 3. As a result, the joint surface portion 17 and the metal fitting receiving surface portion 16 are fastened and fixed in the state of surface polymerization. Those of the engagement structure of the construction timber according to the ends of the building crosspiece 2 was engagement structures to any one of claims 1 to 3, wherein the surface portion.

  5. The construction wood joining structure according to claim 4, wherein the pedestal body 14 is formed of a metal plate having an area larger than an area of the joint surface portion 17 of the cross member fixing bracket 6. Is.

  In addition, an insertion groove 20 into which the pedestal body 14 fixed to the side surface portion of the building vertical member 1 is fitted is formed in the end portion of the building cross member 2, and the insertion groove 20 is formed in the vertical direction. The end of the cross member 2 for construction is moved up and down with respect to the side surface of the vertical member 1 for construction using the pedestal 14 fitted in the fitting groove 20 as a guide. The upper presser member 18 that is fitted in the upper groove portion of the fitting groove 20 and contacts the upper portion of the insertion base end side of the transverse member fixing bracket 6 is arranged on the side surface of the building vertical member 1. The lower presser member 19 that is fixed to the lower portion of the insertion groove 20 and is in contact with the lower part of the insertion base end side of the transverse member fixing bracket 6 is fixed to the side portion of the vertical member 1 for construction. It is set as the structure fixed, It concerns on the joint structure of the construction wood of any one of Claim 4, 5.

  Since the present invention is configured as described above, the threaded portion of the transverse member fixing bracket in which the joining bolt inserted and disposed in the bolt through hole of the longitudinal member for building is inserted and fixed in the fitting insertion hole at the end portion of the building transverse member. By screwing onto and tightening, it is possible to draw and join the building cross member (the cross member fixing bracket inserted and fixed in the metal fitting insertion hole) to the building vertical member. By pulling the fixing bracket, the hole edge of the insertion hole with a diameter larger than that of the latching body can be brought into contact with the outer peripheral surface of the latching body to eliminate the difference in diameter between each other. The backlash of the joint part of the cross member can be surely eliminated, and the accuracy of the joint position and the structural strength are not easily lowered. Even if a load that tries to change the crossing angle occurs, the ultimate ability to immediately withstand this load The engagement structure of innovative construction timber which is excellent in practicality.

  Further, in the invention described in claim 2, it is possible to construct an architectural material having a higher level of practicality that can be used to join the structural cross member to the vertical member of the building very firmly by means of a plurality of joining bolts arranged in a vertically arranged state. It becomes a joint structure of wood.

  According to a third aspect of the present invention, the lower surface of the end portion of the building cross member can be supported on the support step surface of the building vertical member to be in a temporarily fixed state. It becomes the joint structure of the construction wood excellent in the workability which can be easily screwed to the screwing part of the cross member fixing bracket.

  In the inventions of claims 4 and 5, for example, when a building is shaken by an earthquake or strong wind, a load is generated to change the crossing angle of the building cross member with respect to the building vertical member. Since the bracket receiving surface portion of the pedestal and the joint surface portion of the cross member fixing bracket are supported by the surface, excellent proof stress can be exhibited. In particular, in the invention according to claim 5, the pedestal supporting the load is a vertical Since the surface is fixed to the side surface of the material over a wide area, the pedestal body is less likely to sink into the side surface of the vertical material for building, and can exhibit more excellent proof stress.

  Moreover, in invention of Claim 6, although it is the structure which fixes a base body to the side part of the vertical member for building, the base part is inserted in the insertion groove, and the side part of the vertical member for construction and the horizontal member for building The end of the building cross member can be moved up and down with respect to the side of the vertical member of the building using the pedestal inserted in the fitting groove as a guide. The upper presser foot that can be easily placed at the joining position of the side part of the longitudinal member for construction and is fixed to the side part of the longitudinal member by being inserted into the upper and lower portions of the fitting groove. Since the member and the lower presser member are in contact with the upper and lower parts on the insertion base end side of the cross member fixing bracket, let's change the crossing angle of the cross member for construction with the vertical member for construction in the vertical direction. When a load is generated, the upper presser member and the lower presser member immediately generate a load resistance against this load. Possible, such as a Tsugigogu construction of building wood more excellent in practicality.

It is explanatory explanatory drawing which shows a mode that the lower side pressing member is going to be fixed to the side part of the vertical material for construction of Example 1 with a seat board body. It is an explanatory perspective view showing signs that a cross member fixing metal fitting is going to be inserted and fixed in a metal fitting insertion hole at an end part of a cross member for construction in Example 1. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory perspective view showing a state where an end portion of a building cross member is going to be brought into contact with a side surface portion of a building vertical member in Example 1; Continuing on from Fig. 3, the bottom surface of the end of the building cross member is surface-polymerized to the support step surface of the building vertical member, and a part of the joint bolt is inserted into the bolt hole is cut. FIG. Continuing to FIG. 4, the joining bolt is inserted into the bolt through hole, the bolt tip is screwed to the threaded portion of the transverse member fixing bracket, and the joining bolt is tightened to fix the construction transverse member (cross member fixing). It is explanatory plane sectional drawing which shows the state which pulled and joined the metal fitting) to the side part of the vertical material for construction. FIG. 6 is an explanatory perspective view illustrating a state in which the upper presser member is to be fixed to the building vertical member following FIG. 5. It is a description perspective view which shows the joining state of the vertical member for building of Example 1, and the horizontal member for building. It is explanatory front view which notched the joining part in the joining state of the vertical member for construction of Example 1, and the horizontal member for construction. It is explanatory front view which notched the joining part in the joining state of the vertical member for construction of Example 2, and the horizontal member 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 cross member fixing metal fitting 6 is inserted and disposed in the metal fitting insertion hole 5 at the end of the cross member 2 for building, the insertion hole 7 formed in the cross member fixing metal 6, and the building communicating with the insertion hole 7. The cross member fixing metal fitting 6 is inserted and fixed in the metal fitting insertion hole 5 by inserting and engaging the engaging body 9 with the engaging hole 8 formed in the side surface portion of the horizontal member 2 for use. 9 can be easily inserted into the insertion hole 7 having a larger hole diameter than the outer diameter.

  An end of the cross member 2 for building is abutted against a side portion of the vertical member 1 for construction, and the joining bolt 3 inserted into the bolt through hole 4 of the vertical member 1 for construction is inserted into the insertion base of the cross member fixing bracket 6. When the joining bolt 3 is tightened and rotated by being screwed to the screwing portion 10 on the end side, the cross member fixing bracket 6 is drawn toward the side portion of the vertical member 1 for building together with the cross member 2 for building. Then, the connecting bolt 3 is tightened and rotated until the end portion of the building cross member 2 contacts the side surface portion of the building vertical member 1 to turn the end portion of the building wood 2 into the building vertical member. Fastening and fixing to the side surface of 1. The joining bolt 3 may be inserted into the bolt through hole 4 in advance.

  At this time, when the cross member fixing bracket 6 is drawn to the side surface portion of the building vertical member 1, a part of the hole edge of the insertion hole 7 moves closer to a part of the outer peripheral surface of the locking body 9. When the joining bolt 3 is tightened and rotated until a part of the hole edge of the insertion hole 7 comes into contact with a part of the outer peripheral surface of the engagement body 9 without a gap, the engagement body 9 with respect to the insertion hole 7 is rotated. The backlash is eliminated.

  Moreover, in this invention, when the edge part of the crosspiece 2 for construction is made to contact | abut to the side part of the vertical member 1 for construction, the insertion base end side of the said horizontal member fixing metal fitting 6 and the side face of the vertical member 1 for construction Since a gap larger than the dimensional difference between the hole diameter dimension of the insertion hole 7 and the outer diameter dimension of the locking body 9 is formed between the insertion hole 7 and a portion, a part of the hole edge of the insertion hole 7 is the above-mentioned engagement. The insertion base end side of the cross member fixing bracket 6 does not come into contact with the side surface portion of the building vertical member 1 before contacting a part of the outer peripheral surface of the stationary body 9, so The joining bolt 3 can be tightened until a part of the engagement body 9 comes into contact with a part of the outer peripheral surface of the engagement body 9, and thus the backlash of the engagement body 9 with respect to the insertion hole 7 is eliminated. The edge part of the crosspiece 2 for construction can be joined to the side part of the vertical member 1 for construction.

  Therefore, according to the joint structure of the present invention, high accuracy is not required in the position where the locking hole 8 is formed in the building cross member 2 or the quality of the building cross member 2 is affected. The building cross member 2 can be joined to the vertical member 1 with no backlash and with high positional accuracy, and the building is shaken by the influence of an earthquake or a strong wind. Even if there is a load that tries to pull apart or a load that changes the crossing angle of the building cross member 2 with respect to the building vertical member 1, the jointed part without rattling can immediately exert the strength against this load. Will be realized.

  Further, for example, a notch is formed on the side surface of the building vertical member 1 so as to support the lower surface of the end portion of the building cross member 2 in a face-to-face state. When the lower surface of the end portion of the cross member 2 is supported, the bolt front end portion of the joining bolt 3 that is inserted and disposed in the bolt through hole 4 and protrudes and the screwed portion 10 are in a temporary state. If the formation position of this support step surface 13 is set, the bottom surface of the end of the building cross member 2 can be supported on the support step surface 13 of the building vertical member 1 to temporarily fix the cross member 2 for building. Therefore, it is not necessary to continue to support the crosspiece 2 for building in a predetermined position, and in this temporarily fixed state, the bolt front end portion and the screwed portion of the connecting bolt 3 that is inserted and disposed in the bolt through hole 4 are projected. Therefore, the joining bolt 3 can be easily screwed to the screwing portion 10.

  In addition, the end of the building cross member 2 is joined to the side surface of the building vertical member 1 while the lower surface of the end portion of the building cross member 2 is supported in an interview state on the support step surface 13. In particular, when a load that causes the crossing angle of the building cross member 2 to be changed in the vertical direction with respect to the building cross member 1 is generated, this load is also received by the support step surface 13 and is excellent against this load. It will demonstrate its proof strength.

  Further, for example, a plate-shaped metal pedestal body 14 is fixed to the side surface portion of the longitudinal member 1 for building by fixing the one side plate surface to the side surface portion of the longitudinal member 1 for building, and this pedestal body 14 is fixed. A through hole 15 is provided for communicating with the bolt through hole 4 and through which the bolt tip of the joining bolt 3 inserted and disposed in the bolt through hole 4 is projected. A receiving surface portion 16 is provided, and a joining surface portion 17 that can be surface-polymerized on the metal fitting receiving surface portion 16 is provided on the proximal end side of the transverse member fixing metal fitting 6 into the metal fitting insertion hole 5 and is screwed onto the joining surface portion 17. A portion 10 is provided, and a bolt tip portion of the joining bolt 3 protruding from the through-hole 15 by being inserted into the bolt through hole 4 is screwed into the screwed portion 10 and the joining bolt 3 is tightened. By attaching, the joint surface portion 17 and the metal fitting receiving surface portion 16 are fastened and fixed in an interview polymerization state. If the side part of the material 1 is joined to the end of the crosspiece 2 for construction, the building shakes due to the influence of an earthquake or strong wind, and the crossing angle of the crosspiece 2 for construction with respect to the construction vertical member 1 is changed. Even if a load to be generated is generated, the load is received and supported in a wide area between the bracket receiving surface portion 16 of the pedestal body 14 where the load is superposed and the joint surface portion 17 of the transverse member fixing bracket 6 and the pedestal body 14 Since both of the metal fixing brackets 6 are made of a strong metal, the bracket receiving surface portion 16 and the joint surface portion 17 are unlikely to be deformed and the one side plate surface of the pedestal 14 is also used for the vertical construction. Since it is fixed to the side part of the material 1 in an interview polymerization state, the load transmitted from the pedestal body 14 to the side part of the building vertical member 1 is also received and supported in a wide area, so that the pedestal body 14 is vertically It is difficult to sink into the material 1, and therefore, it is difficult to change the crossing angle of the crosspiece 2 for construction with respect to the longitudinal member 1 for construction. In addition, excellent proof stress against the above load is exhibited.

  Further, for example, if the pedestal body 14 is made of a metal plate having an area larger than the area of the joint surface portion 17 of the cross member fixing bracket 6, the pedestal body 14 fixed in an interview state with a large area is constructed. Therefore, the crossing angle of the building cross member 2 with respect to the building vertical member 1 is further less likely to change.

  Further, for example, an insertion groove 20 into which the pedestal body 14 fixed to the side surface portion of the building vertical member 1 is fitted is formed in the end portion of the building cross member 2, and the insertion groove 20 is It is constructed so as to have a groove length in the vertical direction, and the end of the building cross member 2 is moved up and down relative to the side surface of the building vertical member 1 using the base body 14 fitted in the fitting groove 20 as a guide. The upper presser member 18 that is configured to be disposed at the fitting position and is fitted into the upper groove portion of the fitting groove 20 and abuts the upper portion of the transverse member fixing bracket 6 on the insertion base end side is the building vertical member 1. The lower presser member 19 that is fixed to the side surface portion of the insertion member 20 and is fitted into the lower groove portion of the insertion groove 20 and contacts the lower portion of the insertion base end side of the cross member fixing bracket 6 is provided on the side surface of the building vertical member 1. If the base body 14 is inserted into the insertion groove 20, the gap between the side surface portion of the building vertical member 1 and the end portion of the building cross member 2 is set. The end of the cross member 1 can be moved up and down with respect to the side surface of the vertical member 2 by using the pedestal 14 inserted in the fitting groove 20 as a guide. The two end portions can be easily arranged at the joining position of the side surface portion of the building longitudinal member 1. In addition, the upper presser member 18 that is inserted into the upper groove portion of the insertion groove 20 and is brought into contact with the upper portion of the side member fixing bracket 6 on the insertion base end side is fixed to the side surface portion of the building longitudinal member 1 and the insertion groove. When the lower presser member 19 that is inserted into the lower groove portion 20 and is brought into contact with the lower portion of the insertion base end side of the cross member fixing bracket 6 is fixed to the side surface portion of the building vertical member 1, the cross member fixing bracket 6 is fixed. The upper presser member 18 and the lower presser member 19 that are in contact with each other immediately exert a load resistance to a load that attempts to change the crossing angle of the building cross member 2 with respect to the building vertical member 1, especially for building use. It is possible to exhibit excellent proof strength against a load that attempts to change the crossing angle of the cross member 2 for construction in the vertical direction relative to the vertical member 1.

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

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

  The building vertical member 1 of the present embodiment employs a square member having a rectangular cross section, and a bolt 3 is inserted into the side surface portion thereof so that the tip of the bolt protrudes from the side surface portion of the building vertical material 1. A through hole 4 is provided.

  Specifically, the bolt through-hole 4 is provided in the upper part of the building vertical member 1 so as to penetrate between the opposing side portions, and one of the opposing side portions of the building vertical member 1 is provided in the bolt through-hole 4. The joining bolt 3 is inserted from the side, and the bolt tip portion of the joining bolt 3 is projected from the other side of the opposite side surface portion.

  Further, the bolt through hole 4 is provided at an intermediate position in the width direction of the opposite side surface portion of the longitudinal member 1 for building, and a plurality of the four through holes (upper and lower four places in the drawing) at a certain small interval in the vertical direction. It is provided side by side.

  Further, the other side surface portion of the longitudinal member 1 for building is cut into a substantially L shape in a side view, and the other side surface portion on which the notch portion is formed is connected to the end portion of the building cross member 2. The joint surface 23 is abutted and joined, and the horizontal surface below the joint surface 23 is a support step surface 13, and the lower surface of the end of the building cross member 2 is in an interview state on the support step surface 13. It is configured so that it can be supported.

  Further, the joint bolt 3 in which a counterboring process is performed on a side surface portion of one side of the vertical member for building 1 where the plurality of bolt through holes 4 exist, and a hexagonal bolt is used for the counterbore portion 24. The joining bolt 3 can be inserted into the bolt through hole 4 while the washer 11 is housed together with the bolt head.

  Further, the seating portion 24 is formed in a shape that is continuous in the vertical direction, and all the bolt through holes 4 are arranged in the seating portion 24, while the washer 11 also has a length in the vertical direction. It has a shape having a plurality of bolt holes 12 in the vertical direction (four locations in the drawing), and a single washer 11 having a length in the vertical direction is attached to all the plurality of joining bolts 3. It is configured to cover the functions.

  Accordingly, the washer 11 having a length in the vertical direction is surface-polymerized to the building vertical member 1 over a wide area, so that the tightening force of the joining bolt 3 is dispersed and acts on a wide range of the building vertical member 1. Therefore, the construction vertical member 1 is hard to be sunk into the construction vertical member 1 and the construction vertical member 1 is hardly damaged.

  Further, in this embodiment, the construction vertical member 1 in which the bolt through-hole 4, the support step surface 13, the joint surface 23, and the counterbore 24 are pre-cut is used.

  The building cross member 2 of the present embodiment employs a square member having a rectangular cross section, and is provided with a metal fitting insertion hole 5 at an end thereof.

  The metal fitting insertion hole 5 is formed by forming a horizontal hole that does not penetrate to the opposite side at the axial center position of the building cross member 2, and the horizontal hole 5 is synchronized with the outer shape of the building cross member 2. And it forms in the square hole which exhibits the vertical rectangular shape which is one diameter smaller than the external shape of the crosspiece 2 for construction.

  Further, a plurality of locking holes 8 are formed in a scattered state on the side surface portion of the end portion of the building cross member 2 so as to penetrate between the opposing side surface portions in the horizontal direction and communicate with the metal fitting insertion hole 5. .

  In addition, an insertion groove 20 having a groove length in the vertical direction is formed in the end portion of the cross member 2 for building so that a pedestal body 14 to be described later can be inserted into the insertion groove 20.

  Further, the insertion groove 20 is formed at a position overlapping with the axis of the building cross member 2 so that the opening of the metal fitting insertion hole 5 exists at the groove bottom of the insertion groove 20. When a pedestal body 14 to be described later is inserted into 20, the end portions of the building cross member 2 remaining on both sides of the insertion groove 20 are brought into surface contact with the joining surface 23 of the building vertical member 1. doing.

  Further, the insertion groove 20 has a groove depth larger than the plate thickness dimension of a pedestal body 14 to be described later, and has a groove depth slightly smaller than the projecting width dimension of the support step surface 13 from the joining surface 23. When the end portion of the crosspiece 2 for building is brought into contact with the joining surface 23 of the vertical member 1 for construction and the lower surface of this end portion is supported on the support step surface 13 of the vertical member 1 for construction, The insertion groove 20 is hidden from the lower side and cannot be seen.

  Moreover, the crosspiece 2 for construction of a present Example is set as the structure which uses what the said metal fitting insertion hole 5, the said locking hole 8, and the said insertion groove | channel 20 were pre-cut.

  In this embodiment, a plate-shaped metal base 14 is fixed to the side surface portion (joint surface 23) of the building vertical member 1, and the cross member fixing bracket 6 is inserted into the bracket insertion hole 5 of the building cross member 2. Is configured to be inserted and fixed.

  The pedestal body 14 of the present embodiment has one side plate surface as a fixing surface for surface-polymerizing the joining surface 23 of the longitudinal member 1 for building, and when this fixing surface is surface-polymerized to the joining surface 23. In addition, a through hole 15 is provided which is connected to the bolt through hole 4 and through which the bolt tip of the joining bolt 3 inserted and disposed in the bolt through hole 4 penetrates and protrudes outward from the building vertical member 1.

  Specifically, the pedestal body 14 is configured as a rectangular plate-like body having a length in the vertical direction and having a vertical dimension slightly shorter than the height width of the joining surface 23. A plurality of through-holes 15 are provided in a line-up state with an interval in the vertical direction corresponding to the positions of the plurality of bolt through holes 4.

  The pedestal 14 has a width dimension that is smaller than the width dimension of the joining surface 23 of the building vertical member 1 and slightly narrower than the groove width of the fitting groove 20 of the building cross member 2. When this pedestal 14 is fixed to the joining surface 23 by aligning the through hole 15 and the bolt through hole 4, the pedestal 14 is located in the middle of the transverse direction of the joining surface 23 and is joined to both sides. 23 is exposed, the end of the building cross member 2 can be abutted against and brought into contact with the joining surfaces 23 on both sides, and the pedestal 14 is inserted into the insertion groove 20 of the building cross member 2 at this time. It is composed. Further, the fitting relationship between the pedestal body 14 and the fitting groove 20 is configured so that the function of preventing the horizontal shift of the building cross member 2 relative to the building vertical member 1 is exhibited.

  In addition, the fixing means of the pedestal 14 to the side surface (joint surface 23) of the vertical member 1 for building is a fastener such as a wood screw or a nail at one upper part and two lower parts of the pedestal 14 A mounting hole 22 through which 21 is inserted is formed so as to be fixed by a fixing tool 21 using these three mounting holes 22.

  Further, the other side plate surface of the pedestal 14 exposed from the side surface portion (joint surface 23) of the building vertical member 1 is used as a bracket receiving surface portion 16, and a joint surface portion of a transverse member fixing bracket 6 described later on the bracket receiving surface portion 16 is used. 17 is configured such that it can be subjected to surface polymerization.

  Further, the area of the pedestal 14 is set to be slightly larger than the area of the joint surface portion 17 of the transverse member fixing bracket 6 described later. That is, the metal fitting receiving surface portion 16 is also configured to have a larger area than the bonding surface portion 17 described later, and the entire surface of the bonding surface portion 17 can be polymerized by the metal receiving surface portion 16 having a large area.

  The transverse member fixing metal fitting 6 of this embodiment is formed in a rectangular flat plate shape having a thickness that can be inserted into the metal fitting insertion hole 5.

Further, the cross member fixing bracket 6 is configured so that it can be inserted into the bracket insertion hole 5 in a state where the long side direction thereof is up and down, and the cross member fixing bracket 6 is inserted into the bracket insertion hole. 5, the shape of the transverse member fixing metal fitting 6 and the hole of the metal fitting insertion hole 5 are arranged so that the insertion proximal end protrudes from the metal fitting insertion hole 5 and is arranged in the fitting groove 20. Configure the length setting.

  More specifically, the side portion (joint surface portion 17 to be described later) of the lateral member fixing bracket 6 inserted and fixed in the bracket insertion hole 5 is the side surface of the longitudinal member 1 for the building. The shape of the cross member fixing bracket 6 and the metal fitting so that a gap is generated between the cross member fixing bracket 6 and the side surface portion of the building cross member 1 when it abuts against and comes into contact with the portion (joint surface 23). The hole length of the insertion hole 5 is set and configured.

  Further, the transverse member fixing metal fitting 6 has an insertion hole 7 which can communicate with the locking hole 8 when inserted into the metal fitting insertion hole 5 and penetrates the transverse member fixing metal fitting 6 in the plate thickness direction. In this way, a plurality of scattered states are provided, the insertion holes 7 and the locking holes 8 are communicated, and a locking body 9 such as a drift pin is inserted and locked in the communication holes 7 and 8. The cross member fixing bracket 6 is configured to be inserted and fixed in the bracket insertion hole 5.

  In addition, the plurality of insertion holes 7 are set to have a diameter slightly larger than the outer diameter of the engaging body 9 such as a drift pin inserted into the insertion hole 7 and inserted therethrough. The latching body 9 is configured to be inserted and inserted into the insertion hole 7 without resistance.

  Further, when the end of the cross member 2 for building is abutted against and contacted with the side surface (joint surface 23) of the vertical member 1 for building, the insertion base end of the cross member fixing bracket 6 inserted and fixed in the bracket insertion hole 5 is used. Between the side surface portion (joint surface portion 17 to be described later) and the joining surface 23 of the longitudinal member for building, the difference in size between the hole diameter size of the insertion hole 7 and the outer diameter size of the locking body 9 The position where the insertion hole 7 is formed on the cross member fixing bracket 6 and the position where the locking hole 8 is formed on the side surface of the cross member 2 for construction so that a gap slightly larger than the difference in dimensions is generated. Is configured.

  Further, the horizontal member fixing metal fitting 6 has an insertion base end side surface portion with respect to the metal fitting insertion hole 5, that is, a rectangular side surface portion having a length in the vertical direction, and the side surface portion (joint) of the building vertical member 1. A joint surface portion 17 which is superposed on the metal fitting receiving surface portion 16 of the base body 14 fixed to the surface 23), and a female screw as a screw portion 10 for screwing the bolt tip portion of the joint bolt 3 to the joint surface portion 17. A hole 10 is provided.

  Further, a plurality (four in the drawing) of the screwing portions 10 are provided in parallel in the vertical direction on the joint surface portion 17 so as to correspond to the positions of the plurality of bolt through holes 4.

  Further, in this embodiment, the pedestal body 14 fixed to the joining surface 23 of the building vertical member 1 is fitted to the support step surface 13 in a state in which the pedestal 14 is fitted into the fitting portion 20 at the end of the building cross member 2. When the lower surface of the end portion of the material 2 is supported, the positions of the respective bolt through holes 4 and the respective screwed portions 10 are substantially aligned with each other (the respective bolt through holes 4 and the respective screwed portions 10 communicate with each other). ), The formation position of the bearing step surface 13 with respect to the longitudinal member 1 for building is set.

  Therefore, by supporting the lower surface of the end portion of the building cross member 2 on the support step surface 13 while the pedestal body 14 is fitted in the fitting groove 20, the building cross member 2 is in a temporarily fixed state requiring no support. The joining bolt 3 and the screwing portion 10 can be easily screwed in this temporarily fixed state, and the joining bolt 3 screwed to the screwing portion 10 is further tightened and rotated. Then, the end portion of the building cross member 2 is pulled together with the cross member fixing bracket 6 to the side surface portion of the building vertical member 1 so as to be connected together.

  Further, in this embodiment, when the end portion of the cross member 2 for building is abutted against and brought into contact with the side surface portion (joint surface 23) of the vertical member 1 for building, the side surface on the insertion base end side of the cross member fixing bracket 6 is used. The hole diameter dimension of the insertion hole 7 and the locking body 9 are fixed between the portion (joint surface portion 17 described later) and the bracket receiving surface portion 16 of the base body 14 fixed to the joining surface 23 of the longitudinal member 1 for building. It is configured so that a gap of about ½ of the dimensional difference from the outer diameter dimension is generated, so that the transverse member fixing bracket 6 is installed in the bracket insertion hole 5 by the tightening rotation of the joining bolt 3. When the hole edge of the insertion hole 7 is brought into contact with the outer peripheral surface of the latching body 9 without a gap, the transverse member fixing metal fitting 6 is brought into contact with the metal fitting receiving surface portion 16 of the base body 14 substantially simultaneously. The joint surface portion 17 is subjected to surface polymerization.

  Further, in this embodiment, the insertion groove 20 is notched at the end of the building cross member 2, so that the upper groove portion and the lower groove portion of the insertion groove 20 appear as a gap after joining. . Therefore, in this embodiment, the upper and lower grooves of the fitting groove 20, that is, the gap formed above and below the insertion base end side of the transverse member fixing bracket 6 protruding from the bracket insertion hole 5, The presser member 18 and the lower presser member 19 are disposed and fixed so as to close the gaps, and the upper presser member 18 protrudes from the bracket insertion hole 5 on the insertion base end side upper surface portion of the cross member fixing bracket 6. The lower presser member 19 is in contact with the lower surface portion on the insertion base end side of the cross member fixing metal fitting 6 protruding from the metal fitting insertion hole 5.

  Therefore, the upper presser member 18 and the lower presser member 19 that are in contact with the cross member fixing bracket 6 immediately respond to a load that attempts to change the crossing angle of the cross member 2 for building with respect to the vertical member 1 for building. In particular, the construction is such that it exhibits excellent proof strength against a load that attempts to change the crossing angle of the crosspiece 2 for building in the vertical direction with respect to the vertical member 1 for building.

  The upper presser member 18 and the lower presser member 19 will be described in more detail. The upper groove portion on the upper side and the lower groove portion on the lower side from the insertion base end side of the horizontal member fixing metal fitting 6 protruding from the metal fitting insertion hole 5 are described. It is composed of a rectangular parallelepiped member that substantially matches the shape, and the lower surface of the upper holding member 18 comes into surface contact with the upper surface of the insertion base end of the horizontal member fixing bracket 6 and the upper surface of the lower holding member 19 is fixed to the horizontal member. The metal fitting 6 is brought into surface contact with the lower surface portion of the insertion proximal end side.

  Further, the upper presser member 18 and the lower presser member 19 are fixed to the joining surface 23 of the building longitudinal member 1.

  More specifically, a plurality of fastening holes 25 (two in the drawing) for inserting wood screws 21 as fastening tools 21 are provided in the upper presser member 18 and the lower presser member 19, respectively. The fastening device 21 inserted through the hole 25 is fastened and fixed to the joint surface 23 of the building vertical member 1.

  Further, the illustrated upper pressing member 18 shows a case where the fixing hole 25 is provided in an oblique state so that the fixing tool 25 can be inserted obliquely from above, and the lower pressing member 19 is the pedestal body. The case where the fixing tool 21 for fixing and fixing 14 is fixed to the joining surface 23 of the longitudinal member 1 together with the base body 14 is shown.

  Note that the means for fixing the upper presser member 18 and the lower presser member 19 to the longitudinal member 1 for construction is not limited to the fixing means of the present embodiment using the wood screw 21, for example, a fastener A female screw to which bolts and screws as 21 can be screwed is formed on the base body 14 and is bolted to the base body 14 using this female screw (fixed to the longitudinal member 1 for construction via the base body 14). Yes) fixing means may be adopted, or other fixing means may be adopted.

  Next, the joining method of the vertical member 1 for construction and the horizontal member 2 for construction of the present embodiment will be described.

  The side plate (joint surface 23) on the other side of the longitudinal member 1 for building is subjected to surface polymerization of one side plate surface of the base body 14 so that the positions of the bolt insertion holes 4 and the through holes 15 are aligned. The base 14 is fixed to the joining surface 23 using screws 21). At this time, the lower holding member 19 is overlapped with the lower part of the bracket receiving surface 16 of the base 14, and the mounting hole 22 and the fastening hole The position of 25 is aligned, and the fastening tool 21 is inserted into the mounting hole 22 and the fastening hole 25, and the lower pressing member 19 is also fixed to the joining surface 23 together with the base body 14 (see FIG. 1).

  On the other hand, the cross member fixing metal fitting 6 is inserted into the metal fitting insertion hole 5 of the cross member 2 for construction, and the drift pin 9 as the engaging body 9 is driven into the communicating insertion hole 6 and the engaging hole 8 to communicate with the metal fitting inserting hole. 5 is inserted and fixed to the cross member fixing bracket 6 (see FIG. 2).

  Next, the base 14 is inserted into the insertion groove 20 while lowering the end of the horizontal member 2 for construction from above with respect to the vertical member 1 (see FIG. 3), and the base 14 inserted into the insertion groove 20 is inserted. When the crosspiece 2 for building is lowered on the guide and the lower surface of the end is supported on the support step surface 13, the side of one side of the vertical member 1 for building is connected to the bolt through hole 4 via the washer 11 (bolt hole 12). The joining bolt 3 is inserted and screwed into the screwing portion 10 (see FIG. 4).

  Next, the connecting bolt 3 is tightened and rotated to draw the building cross member 2 together with the cross member fixing bracket 6 to the joint surface 23, and the end of the cross member 2 for construction is brought into surface contact with the joint surface 23. In this case, the cross member fixing metal fitting 6 is drawn in the direction of the joint surface 23 of the building vertical member 1 in the metal fitting insertion hole 5 and moved (screwed). As a result, the hole edge of the insertion hole 7 comes into contact with the outer peripheral surface of the locking body 9 without a gap, and the backlash of the locking body 9 with respect to the insertion hole 7 is eliminated. The joint surface portion 17 of the cross member fixing bracket 6 is subjected to surface polymerization on the bracket receiving surface portion 16.

  Next, an upper presser member 18 is disposed in the upper portion of the fitting groove 20 (see FIG. 6), and the upper presser member 18 is fastened and fixed to the joint surface 23 of the building longitudinal member 1 by the fastening tool 21. The construction is completed (see FIGS. 7 and 8).

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

  In this embodiment, the pedestal body 14 in the first embodiment is formed in a rectangular plate shape having a vertical length that substantially matches the height width of the joining surface 23, and the bracket abutment of the pedestal body 14 is formed. The case where the upper pressing member 18 is overlapped and fixed to the upper portion of the surface portion 16 is shown. The upper presser member 18 of the present embodiment has a depth dimension smaller than that of the first embodiment by the thickness of the pedestal body 14, and is located at a position avoiding the through hole 15 at the upper portion of the pedestal body 14. An attachment hole 22 through which the fastening tool 21 can be inserted is formed in communication with the fastening hole 25 of the upper pressing member 18.

  In addition, a case is shown in which the lower pressing member 19 is integrally projected at the lower portion of the joint surface portion 17 of the base body 14. In the present embodiment, the mounting hole 22 and the fastening hole 25 are also integrated (reference numeral 22 in the drawing).

  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 Joining bolt 4 Bolt through hole 5 Metal fitting insertion hole 6 Cross member fixing metal fitting 7 Insertion hole 8 Locking hole 9 Locking body
10 Screwed part
13 Bearing surface
14 pedestal
15 Through hole
16 Bracket receiving surface
17 Joint surface
18 Upper presser member
19 Lower presser member
20 Insertion groove

Claims (6)

  It is a joint structure of building wood that joins wooden building vertical members and wooden building cross members at right angles or in an inclined state, and a joining bolt is inserted into the side part of the building vertical members. A bolt insertion hole is provided, a metal fitting insertion hole is provided at an end of the building cross member, a horizontal member fixing metal fitting is inserted and disposed in the metal fitting insertion hole, and an insertion hole formed in the cross member fixing metal In addition, the cross member fixing bracket is inserted and fixed in the bracket insertion hole by inserting and locking the locking body into the locking hole formed in the side portion of the building horizontal member communicating with the insertion hole, and The hole diameter of the insertion hole is set to be larger than the outer diameter dimension of the locking body, and the end portion of the building cross member to which the cross member fixing bracket is inserted and fixed is used as the side surface portion of the building vertical member. When abutting, the diameter of the insertion hole and the locking between the insertion base end side of the horizontal member fixing bracket and the side surface of the vertical member for building The formation position of the insertion hole on the cross member fixing bracket or the formation position of the locking hole on the side surface of the building cross member is set so that a gap more than the dimensional difference of the outer diameter dimension of the The cross member fixing bracket is provided with a threaded portion to which the joining bolt can be screwed on the proximal end side of the metal fitting insertion hole, and the threaded portion is inserted into the bolt through hole and protruded. In addition, by screwing the joining bolts and tightening the joining bolts, the construction is such that the end portions of the building cross members are pulled together to the side portions of the building vertical members together with the cross member fixing brackets. This is a joint structure of architectural timber.   A plurality of the bolt through holes are provided in a side-by-side direction of the vertical member for building in a vertically arranged state, and the screwed portion is inserted into the insertion base end side of the cross member fixing bracket in correspondence with the plurality of bolt through holes. The construction wood joining structure according to claim 1, wherein a plurality of the timbers are provided side by side in the vertical direction.   On the side surface of the building vertical member, a support step surface for supporting the lower surface of the end portion of the building cross member in a face-contact state is cut out, and the lower surface of the end portion of the building cross member is formed on the support step surface. The position where the bearing step surface is formed is set so that the bolt tip portion and the screwed portion of the joining bolt inserted and disposed in the bolt through hole are in a temporary state when supported. Item 5. A joint structure for building wood according to any one of items 1 and 2.   A plate-shaped metal pedestal is fixed to the side of the vertical member of the building by fixing the one side plate surface to the side of the vertical member of the building, and this pedestal is connected to the bolt through hole. A through hole for penetrating and projecting the tip of the bolt of the joining bolt inserted and disposed in the lever through hole is provided, and the other side plate surface of the pedestal body is used as a metal receiving surface portion, and surface polymerization can be performed on the metal receiving surface portion. A joining surface portion is provided on the base end side of the transverse member fixing metal fitting into the fitting insertion hole, the screwing portion is provided on the joining surface portion, and the screwing portion is inserted into the bolt through hole. Then, the front end of the joining bolt protruded from the through hole is screwed and the joining bolt is tightened, so that the joining surface portion and the bracket receiving surface portion are fastened and fixed in the surface polymerization state. The end of the horizontal member for construction is joined to the side part of the vertical member for construction. Engagement structure construction timber according to any one of claims 1 to 3, characterized in.   The construction wood joining structure according to claim 4, wherein the pedestal is composed of a metal plate having an area larger than an area of a joint surface portion of the cross member fixing bracket.   An insertion groove into which the pedestal fixed to the side portion of the building vertical member is fitted is cut out at an end of the building cross member, and the insertion groove has a groove length in the vertical direction. It is configured so that the end of the building cross member can be moved up and down with respect to the side surface of the building vertical member by using the pedestal inserted in the fitting groove as a guide, and placed at the joining position. An upper presser member that fits into the upper groove portion of the groove and contacts the upper part of the insertion base end side of the cross member fixing bracket is fixed to the side surface portion of the vertical member for construction, and is fitted into the lower groove portion of the fitting groove. 6. The structure according to claim 4, wherein a lower pressing member that abuts on a lower portion of the transverse member fixing bracket on the insertion base end side is fixed to a side surface portion of the building vertical member. The joint structure of building wood as described in the item.

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