JP6682166B2 - Wooden member connection structure and wooden member connection method - Google Patents

Description

  The present invention relates to a joining structure for wooden members and a method for joining wooden members.

  As a long material used for handrails, shade wood, etc., two long woods may be connected and used. As a connection method at this time, Patent Document 1 and Patent Document 2 below disclose a method of pulling two bolts in the reverse rotation direction with a nut. Further, Patent Document 3 below discloses a method in which a drill hole is formed in the end surface of two pieces of wood, and a steel rod is inserted into the drill hole and fixed with an adhesive.

JP, 11-117489, A JP 2004-308348 A JP-A-3-5543

  The methods disclosed in the above-mentioned Patent Documents 1 and 2 require two types of bolts having different screw rotation directions, resulting in high cost due to the complicated structure, and mistaken bolts during assembly. There is a risk.

  Further, in the method of Patent Document 3 described above, an air vent hole is required to inject the adhesive into the drill hole under high pressure, and the hole must be repaired in appearance.

  In view of the above, the present invention makes it easy to procure the members by reducing the number of the members to the necessary minimum, and it is advantageous in terms of cost. It is an object of the present invention to provide a wooden member connecting structure and a wooden member connecting method that do not require a special structure.

In order to solve the above-mentioned problems, the joining structure of the wooden member according to the first embodiment of the present invention includes two wooden columnar members each provided with counterbored holes on the joining end face,
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. Two hanger bolts,
A high nut that has the same rotation direction of the two hanger bolts and a screw, is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes;
It is characterized by including.

In addition to the features of the first embodiment, the wooden member connection structure according to the second embodiment of the present invention is characterized in that the first hanger bolt, which is one of the two hanger bolts, is the first hanger. In the first columnar member, which is one of the columnar members into which the bolt is screwed, the first columnar member is longer than one pitch of the wood screw portion of the first hanger bolt by a distance shorter than two pitches. The high nut is screwed so as to be recessed from the coupling end surface of the member, and the high nut is screwed to the bolt portion of the first hanger bolt,
The second hanger bolt, which is the other of the two hanger bolts, until the bolt portion of the second hanger bolt abuts the first hanger bolt in the high nut screwed to the first hanger bolt. A positioning mark is attached to a position facing the specific side of the first columnar member in a state of being temporarily screwed in,
The second hanger bolt is a second columnar member that is the other of the columnar members into which the second hanger bolt is screwed, and the alignment mark is the second columnar member, and the alignment mark is the first columnar member. It is characterized in that it is screwed so as to face the side corresponding to a specific side, and to protrude from the coupling end face of the second columnar member by a distance of 1 pitch or less.

In order to solve the above-mentioned problems, the joining structure of the wooden member according to the third embodiment of the present invention includes two wooden columnar members each provided with counterbored holes on the joining end face,
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. Two hanger bolts,
A high nut that has the same rotation direction of the two hanger bolts and a screw, is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes;
A spacer made of an elastic rubber material, which is located at the periphery of the counterbore hole and is interposed between the respective coupling end surfaces of the columnar member,
It is characterized by including.

  In addition to the features of the first, second or third embodiment, the wooden member connection structure according to the fourth embodiment of the present invention is such that the depth of the peripheral edge of the counterbore is the height It is characterized in that it corresponds to half the height of the nut.

In order to solve the above-mentioned problems, a method of joining wooden members according to a fifth embodiment of the present invention is a wooden first columnar member and a second columnar member, each of which has a counterbored hole in a joint end face,
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. A first hanger bolt and a second hanger bolt,
A high nut that has the same rotation direction as the first hanger bolt and the second hanger bolt and is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes,
A method of joining wooden members using
The first hanger bolt is recessed into the first columnar member from the coupling end surface of the first columnar member by a distance longer than one pitch and shorter than two pitches of the wood screw portion of the first hanger bolt. Screw it in,
Screw the high nut onto the first hanger bolt until it hits the bottom surface of the counterbore,
The bolt portion of the second hanger bolt is temporarily screwed into the screwed high nut until it abuts the first hanger bolt,
The second hanger bolt that is provisionally screwed is provided with an alignment mark at a position facing a specific side of the first columnar member,
Removing the second hanger bolt that is temporarily screwed in from the high nut,
The second hanger bolt is protruded from the second columnar member by a distance equal to or less than the one pitch from the coupling end face of the second columnar member, and the alignment mark faces the specific side. Screw it in,
The first columnar member, into which the first hanger bolt is screwed, and the high nut is screwed, and the second columnar member, into which the second hanger bolt is screwed, are brought into contact with each other until their coupling end surfaces abut against each other. It is characterized by being screwed.

  In addition, in the wooden member connection structure according to the sixth embodiment of the present invention, in addition to the features of the fifth embodiment, the depth of the counterbore hole is ½ of the height of the high nut. It is characterized in that it corresponds to.

  Since the present invention is configured as described above, by minimizing the number of members, the procurement of the members is easy, it is advantageous in terms of cost, there is no risk of mistaken members during assembly, Furthermore, it is possible to provide a connecting structure of wooden members that does not require a structure that impairs the appearance.

1 is a perspective view showing an outline of the assembling of a wooden member connection structure according to a first embodiment of the present invention. In 1st Embodiment, the coupling end surface of a columnar member is shown by a front view. In 1st Embodiment, the state which screwed the hanger bolt into the columnar member is shown by a perspective view. In 1st Embodiment, the state which screwed the high nut on the columnar member is shown by a perspective view. In 1st Embodiment, the state in the middle of connecting columnar members is shown by a perspective view. In 1st Embodiment, the state which the coupling | bonding of columnar members was completed is shown by a perspective view. FIG. 11 is a perspective view showing a state where the first hanger bolt is screwed into the first columnar member in the wooden member connection structure according to the second embodiment of the present invention. In 2nd Embodiment, the state which screwed the 1st hanger bolt into the 1st columnar member is shown by a perspective view. FIG. 9 is an X sectional view of FIG. 8. In 2nd Embodiment, the state which screwed the high nut on the 1st columnar member is shown with a perspective view. In 2nd Embodiment, the state which temporarily screwed the 2nd hanger bolt into the high nut is shown with a perspective view. In 2nd Embodiment, the state which attached the alignment mark to the 2nd hanger bolt is shown from a top-down overhead view. In 2nd Embodiment, the state which screws a 2nd hanger bolt into the 2nd columnar member is shown with a perspective view. In 2nd Embodiment, the state which screwed the 2nd hanger bolt into the 2nd columnar member is shown by a perspective view. It is a Y sectional view of FIG. In 2nd Embodiment, the state which the coupling | bonding of the 1st columnar member and the 2nd columnar member was completed is shown by sectional drawing. The outline of assembly of the connection structure of the wooden member which concerns on 3rd Embodiment of this invention is shown with a perspective view. The combined end face of the columnar member is shown in a front view. FIG. 3 is a perspective view showing a state where a hanger bolt is screwed into a columnar member. FIG. 3 is a perspective view showing a state in which a high nut is screwed onto a columnar member. FIG. 3 is a perspective view showing a state where the columnar members are being joined together. FIG. 3 is a perspective view showing a state where the coupling between the columnar members is completed. The modification of 3rd Embodiment of this invention is shown with a perspective view. The modification of 3rd Embodiment of this invention is shown with a perspective view.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a perspective view showing an outline of the assembling of the joining structure of the wooden members according to the first embodiment. In the present embodiment, the two wooden columnar members 10 and 10 are connected by the two hanger bolts 20 and 20 and one high nut 30.

  The columnar members 10 and 10 are, for example, columnar wood used as handrail materials such as balconies, and have the same shape of the joint end face 11 that hits the edge. As shown in the front view of FIG. 2, a circular counterbore 12 is formed in the center of the joint end face 11.

  In addition, a circular pilot hole 13 having a smaller diameter is further formed in the center of the counterbore hole 12 in order to screw the hanger bolt 20 with high precision.

  The two hanger bolts 20, 20 having the same shape can be used. Therefore, the rotation directions of the screws are the same. Each of the hanger bolts 20 includes a wood screw portion 21 on the front end side, a bolt portion 22 on the rear end side, and a head portion 23 having a hexagonal cross section on the rear end side.

  The wood screw portion 21 is a portion screwed into the pilot hole 13. Therefore, it is sufficient for the lower hole 13 to have a diameter such that the tip of the wood screw portion 21 can be positioned, more specifically, about two-thirds of the diameter of the wood screw portion 21.

  The bolt portion 22 is a portion involved in screwing with the high nut 30.

  The head portion 23 is a portion to be gripped by a tool such as a screwdriver having a hexagon socket bit when the wood screw portion 21 of the hanger bolt 20 is screwed into the pilot hole 13.

  The high nut 30 is a nut whose height is longer than its outer diameter. In the present embodiment, in the high nut 30, both bolt portions 22, 22 of the two hanger bolts 20, 20 are screwed into the female screw portion 31, so that both bolt portions 22, 22 are It must have a height that exceeds the total length of protrusions from the bottom surface of the counterbore 12. In the present embodiment, both bolt portions 22, 22 need to have a height that exceeds the total length of protrusions from the bottom surface of the counterbore holes 12, 12 including both the head portions 23, 23.

  Here, the counterbore hole 12 is formed so that the depth thereof corresponds to one half of the height of the high nut 30. The depth of the counterbore 12 here is the depth of the portion where the lower hole 13 is not formed. The depth of the counterbore 12 does not need to be exactly one half of the height of the high nut 30, but is about one half, and the columnar members 10 and 10 are joined together. It suffices that the high nut 30 cannot be visually recognized from the outside at the time. The high nut 30 has the same rotation direction of screws as the two hanger bolts.

  When the hanger bolt 20 is screwed into the pilot hole 13, the head 23 is fixed by a tool as described above, and the hanger bolt 20 is normally rotated rightward to be screwed into the whole of the wood screw portion 21. Is inserted into the pilot hole 13. In this state, as shown in FIG. 3, the bolt portion 22 of the hanger bolt 20 including the head portion 23 projects from the bottom surface of the counterbore hole 12, and An end (that is, a portion corresponding to the head portion 23 shown in FIG. 1) is substantially flush with the coupling end surface 11 of the columnar member 10.

  The hanger bolt 20 is screwed into the other columnar member 10 as shown in FIG.

  Then, as shown in FIG. 4, the high nut 30 is screwed onto the bolt portion 22 protruding from the bottom surface of the counterbore hole 12 of one of the columnar members 10 and 10 into which the hanger bolt 20 is screwed. To wear.

  Then, the other columnar member 10 in the state shown in FIG. 3 is attached to the one columnar member 10 in the state shown in FIG. That is, the hanger bolts 20 of the other columnar member 10 are screwed into the high nuts 30 screwed to the one columnar member 10 and are rotated in the rotation direction of the respective screws to be screwed together. To combine.

  Here, as in the state shown in FIG. 5, the screwing may stop at a position where the two coupling end faces 11, 11 do not coincide with each other. In such a case, once the two columnar members 10 are unscrewed from each other, the screwing condition of the hanger bolt is finely adjusted, and the two columnar members 10 are screwed again to perform the alignment. It is possible.

  Finally, as shown in the perspective view of FIG. 6, the columnar members 10 and 10 are completely coupled by screwing the coupling end faces 11 and 11 into a state in which the coupling end faces 11 and 11 coincide with each other.

  As described above, it is desirable that the connecting end faces 11 and 11 of the two columnar members 10 and 10 in the wooden member connecting structure according to the present embodiment be the same. However, even if these connecting end faces 11 and 11 are not the same, they can be connected to each other by using the connecting structure of the wooden member according to the present embodiment.

<Second Embodiment>
The outline of the assembling of the joining structure of the wooden members according to the second embodiment is as shown in FIG. 1, as in the first embodiment. That is, also in this embodiment, the two wooden columnar members 10 and 10 are joined by the two hanger bolts 20 and 20 and the one high nut 30. The structures of the columnar member 10, the hanger bolt 20, and the high nut 30 are the same as those in the first embodiment. In the present embodiment, one of the two columnar members 10 and 10 is the first columnar member 10A and the other is the second columnar member 10B. Further, one of the two hanger bolts 20, 20 is a first hanger bolt 20A and the other is a second hanger bolt 20B.

  In this embodiment, first, as shown in FIG. 7, the first hanger bolt 20A is screwed into the first columnar member 10A. In the first columnar member 10A, the upper surface in the drawing is the specific side 15. Here, in the first columnar member 10A and the second columnar member 10B, any surface may be the specific side 15 as long as the surfaces are on the same side in the joined state. For example, when the first columnar member 10A and the second columnar member 10B are used as handrails, the decorative surface facing upward may be the specific side 15.

  When the first hanger bolt 20A is screwed into the pilot hole 13 (see FIG. 2), the head 23 is fixed with the tool as described above, and the head 23 is usually rotated rightward to be screwed in. The entire wood screw portion 21 is fitted into the pilot hole 13. In this state, as shown in FIG. 8, the bolt portion 22 of the first hanger bolt 20A is in a state of protruding from the bottom surface of the counterbore hole 12. However, in the present embodiment, the first hanger bolt 20A is screwed to the position where the head 23 is recessed from the coupling end surface 11. The state of immersion is shown in the sectional view of FIG. 9 showing the X section of FIG. The head 23 of the first hanger bolt 20A is located at a position that is recessed from the coupling end surface 11 by a distance D. Here, when the distance of one pitch of the wood screw portion 21 is P, D and P have the relationship of the following expression 1.

  P <D <2P (Formula 1)

  That is, the first hanger bolt 20 </ b> A is screwed into the recessed position from the coupling end face 11 by a distance D that is longer than the distance P for one pitch of the wood screw portion 21 and shorter than the distance 2P for two pitches.

  Then, as shown in FIG. 10, the high nut 30 is screwed onto the bolt portion 22 protruding from the bottom surface of the counterbore hole 12 of the first columnar member 10A into which the first hanger bolt 20A is screwed. Let

  Next, as shown in FIG. 11, the bolt portion 22 of the second hanger bolt 20B is temporarily screwed into the high nut 30 until it abuts against the head portion 23 of the first hanger bolt 20A. In this state, as shown in FIG. 12, in the bolt portion 22 of the second hanger bolt 20B, an alignment mark 24 is attached by an oil-based pen or the like to the side of the first columnar member 10A that abuts the specific side 15. The first columnar member 10 </ b> A and the high nut 30 may also be provided with alignment marks 16 and 32 on the side corresponding to the specific side 15 in the same manner. In this case, each alignment mark 16, 24, 32 will face the same side, i.e. said specific side 15.

  The second hanger bolt 20B is once removed from the high nut 30 from the state shown in FIG. 12, and the alignment mark 24 is also transcribed on the same side of the head 23 as shown in FIG. Then, this second hanger bolt 20B is screwed into the second columnar member 10B. The specific side 15 of the second columnar member 10B is the same side as the specific side 15 of the first columnar member 10A as described above. As shown in FIG. 13, the second columnar member 10B may be provided with the alignment mark 16 as in the case of the first columnar member 10A.

  When the second hanger bolt 20B is screwed into the pilot hole 13 (see FIG. 2), the head 23 is fixed with the tool as described above, and usually the screw is rotated by rotating it to the right. The entire wood screw portion 21 is fitted into the pilot hole 13. In this state, as shown in FIG. 14, the bolt portion 22 of the second hanger bolt 20B projects from the bottom surface of the counterbore hole 12. However, in the present embodiment, the second hanger bolt 20B is screwed so that the head portion 23 is located at a position projecting from the coupling end surface 11. It is the sectional view of FIG. 15 showing the Y cross section of FIG. The head 23 of the second hanger bolt 20B is located at a position protruding from the coupling end surface 11 by a distance E. Here, assuming that the distance of one pitch of the wood screw portion 21 is P as described above, E and P have the relationship of the following Expression 2.

  0 <E ≦ P (Formula 2)

  That is, in the state where the second hanger bolt 20B is screwed into the second columnar member 10B, the head portion 23 projects from the coupling end surface 11, but the projected distance E is one pitch of the wood screw portion 21. Is less than or equal to the distance P.

  Here, if the alignment mark 24 does not face the specific side 15 when the head portion 23 of the second hanger bolt 20B projects just the distance P from the coupling end surface 11, the second hanger bolt 20B is The alignment mark 24 can be aligned with the specific side 15 while the wood screw portion 21 is screwed in by a distance P corresponding to one pitch. At that time, the distance E by which the head portion 23 of the second hanger bolt 20B projects from the coupling end surface 11 satisfies the above expression 2.

  Then, the first columnar member 10A (see FIG. 10) to which the first hanger bolt 20A and the high nut 30 are screwed, and the second columnar member 10B (see FIG. 14) to which the second hanger bolt 20B is screwed. And are screwed together as shown in FIG.

  At this time, in a state where the high nut 30 is in contact with the bottom surface of the counterbore hole 12 of the second columnar member 10B, the first columnar member 10A and the second columnar member 10B have the same specific sides 15, 15 with each other. In the state of facing the direction, the coupling end faces 11, 11 come into contact with each other. FIG. 16 shows this state in cross section. That is, the head portion 23 of the first hanger bolt 20A screwed into the first columnar member 10A is recessed from the coupling end surface 11 by the distance D shown in the formula 1 (see FIG. 9). The head portion 23 of the second hanger bolt 20B screwed into the columnar member 10B projects from the coupling end surface 11 by the distance E shown in the equation 2 (see FIG. 15). Therefore, as shown in FIG. 16, the first hanger bolt 20A and the second hanger bolt 20B are screwed to the high nut 30, and their heads are separated from each other to maintain a distance that does not interfere with each other. .

  As described above, in the present embodiment, the first columnar member 10A in the state shown in FIG. 10 and the second columnar member 10B in the state shown in FIG. It is possible to bring the coupling end faces 11 and 11 into contact with each other so as to be coupled with each other in a state in which 15 and 15 are oriented in the same direction.

  For example, the first columnar member 10A in the state shown in FIG. 10 and the second columnar member 10B in the state shown in FIG. 14 can be prepared in advance in a factory or the like, and then these can be joined at the construction site. At this time, since the alignment mark 24 is attached to the second hanger bolt 20B screwed into the second columnar member 10B, it is possible to verify the alignment of the first columnar member 10A and the second columnar member 10B in advance. It is made clear to the site worker that fine adjustment for alignment is unnecessary on site.

<Third Embodiment>
FIG. 17 is a perspective view showing the outline of the assembling of the joining structure of the wooden members according to the third embodiment. In the present embodiment, the two wooden columnar members 10 and 10 are connected by the two hanger bolts 20 and 20, one high nut 30, and one spacer 40.

  The columnar members 10 and 10 are, for example, columnar wood used as handrail materials such as balconies, and have the same shape of the joint end face 11 that hits the edge. As shown in the front view of FIG. 18, a circular counterbore 12 is formed in the center of the joint end face 11.

  In addition, a circular pilot hole 13 having a smaller diameter is further formed in the center of the counterbore hole 12 in order to screw the hanger bolt 20 with high precision.

  The two hanger bolts 20, 20 having the same shape can be used. Therefore, the rotation directions of the screws are the same. Each of the hanger bolts 20 includes a wood screw portion 21 on the front end side, a bolt portion 22 on the rear end side, and a head portion 23 having a hexagonal cross section on the rear end side.

  The wood screw portion 21 is a portion screwed into the pilot hole 13. Therefore, it is sufficient for the lower hole 13 to have a diameter such that the tip of the wood screw portion 21 can be positioned, more specifically, about two-thirds of the diameter of the wood screw portion 21.

  The bolt portion 22 is a portion involved in screwing with the high nut 30.

  The head portion 23 is a portion that is gripped by a tool such as a screwdriver having a hexagon socket bit when the wood screw portion 21 of the hanger bolt 20 is screwed into the pilot hole 13.

  The high nut 30 is a nut whose height is longer than its outer diameter. In the present embodiment, in the high nut 30, both bolt portions 22, 22 of the two hanger bolts 20, 20 are screwed into the female screw portion 31, so that both bolt portions 22, 22 are It must have a height that exceeds the total length of protrusions from the bottom surface of the counterbore 12. In this embodiment, both bolt portions 22, 22 need to have a height that exceeds the total length of protrusions from the bottom surface of the counterbore holes 12, 12 including both the head portions 23, 23. .

  Here, the counterbore hole 12 is formed so that the depth thereof corresponds to one half of the height of the high nut 30. The depth of the counterbore 12 here is the depth of the portion where the lower hole 13 is not formed. The depth of the counterbore 12 does not need to be exactly one half of the height of the high nut 30, but is about one half, and the columnar members 10 and 10 are joined together. It suffices that the high nut 30 cannot be visually recognized from the outside at the time. The high nut 30 has the same rotation direction of screws as the two hanger bolts.

  The spacer 40 is a thin disk-shaped member having a hole at the center through which the high nut 30 can be inserted. The spacer 40 is formed of an elastic rubber material such as ethylene propylene diene rubber (EPDM). The coefficient of static friction of this elastic rubber material is preferably 0.5 or less.

  When the hanger bolt 20 is screwed into the pilot hole 13, the head 23 is fixed by a tool as described above, and the hanger bolt 20 is normally rotated rightward to be screwed into the whole of the wood screw portion 21. Is inserted into the pilot hole 13. In this state, as shown in FIG. 19, in the hanger bolt 20, the bolt portion 22 including the head portion 23 is in a state of protruding from the bottom surface of the counterbore hole 12, and An end (that is, a portion corresponding to the head portion 23 shown in FIG. 17) is substantially flush with the coupling end surface 11 of the columnar member 10.

  The hanger bolt 20 is also screwed into the other columnar member 10 as shown in FIG.

  Then, as shown in FIG. 20, the high nut 30 is screwed onto the bolt portion 22 protruding from the bottom surface of the counterbore hole 12 of one of the columnar members 10 and 10 into which the hanger bolt 20 is screwed. To wear. Further, the spacer 40 is positioned on the peripheral edge of the counterbore hole 12 of the coupling end face 11 by passing the high nut 30 through the hole.

  Then, the one columnar member 10 in the state shown in FIG. 20 is attached to the other columnar member 10 in the state shown in FIG. That is, the hanger bolts 20 of the other columnar member 10 are screwed into the high nuts 30 screwed to the one columnar member 10 and are rotated in the rotation direction of the respective screws to be screwed together. To combine.

  Here, as in the state shown in FIG. 21, the screwing may stop at a position where the two coupling end faces 11, 11 do not coincide with each other. Even in such a case, the spacers 40 interposed between the coupling end surfaces 11, 11 are elastically crushed, and the columnar members 10, 10 are further rotated to align each other. It is possible to

  Finally, as shown in the perspective view of FIG. 22, the coupling of the columnar members 10 and 10 is completed by screwing the coupling end surfaces 11 and 11 into a state in which the coupling end surfaces 11 and 11 coincide with each other.

  At this time, it is desirable to fill the space 14 between the columnar members 10 and 10 with, for example, a caulking agent.

  As described above, it is desirable that the connecting end faces 11 and 11 of the two columnar members 10 and 10 in the wooden member connecting structure according to the present embodiment be the same. However, even if these connecting end faces 11 and 11 are not the same, they can be connected to each other by using the connecting structure of the wooden member according to the present embodiment.

  In addition, as shown in FIG. 23, in the coupling end surface 11 of the columnar member 10, a shallow hole around the counterbore hole 12 having a diameter substantially the same as the diameter of the spacer 40 and a depth of about half the thickness of the spacer 40. 17 may be formed. When the spacer 40 is attached to the shallow hole 17, about half of the thickness of the spacer 40 is projected from the coupling end face 11 as shown in FIG. As a result, the watertightness of the counterbore hole 12 can be enhanced in addition to the above-described alignment by the rotation of the columnar members 10 and 10 due to the elasticity of the spacer 40.

  INDUSTRIAL APPLICATION This invention can be utilized when connecting and using long materials, such as a handrail and a shade wood.

10 columnar member 10A first columnar member 10B second columnar member 11 coupling end face 12 counterbore hole 13 pilot hole 14 void 15 specific side 16 alignment mark 17 shallow hole 20 hanger bolt 20A first hanger bolt 20B second hanger bolt 21 Wood screw part 22 Bolt part 23 Head part 24 Positioning mark 30 High nut 31 Female screw part 32 Positioning mark 40 Spacer

Claims (6)

Two wooden columnar members each provided with counterbore holes on the coupling end faces,
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. Two hanger bolts,
A high nut that has the same rotation direction of the two hanger bolts and a screw, is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes;
A connecting structure for wooden members, comprising: The first hanger bolt that is one of the two hanger bolts is a first columnar member that is one of the columnar members into which the first hanger bolt is screwed, and the first hanger bolt is The high nut is screwed into the bolt portion of the first hanger bolt so as to be recessed from the coupling end surface of the first columnar member by a distance longer than one pitch of the wood screw portion and shorter than two pitches. Is screwed on,
The second hanger bolt, which is the other of the two hanger bolts, until the bolt portion of the second hanger bolt abuts the first hanger bolt in the high nut screwed to the first hanger bolt. A positioning mark is attached to a position facing the specific side of the first columnar member in a state of being temporarily screwed in,
The second hanger bolt is a second columnar member that is the other of the columnar members into which the second hanger bolt is screwed, and the alignment mark is the second columnar member, and the alignment mark is the first columnar member. 2. The screw according to claim 1, wherein the screw is inserted so as to face the side corresponding to a specific side, and to protrude from the coupling end surface of the second columnar member by a distance equal to or less than the one pitch. Joining structure of wooden members. Two wooden columnar members each provided with counterbore holes on the coupling end faces,
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. Two hanger bolts,
A high nut that has the same rotation direction of the two hanger bolts and a screw, is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes;
A spacer made of an elastic rubber material, which is located at the periphery of the counterbore hole and is interposed between the respective coupling end surfaces of the columnar member,
A connecting structure for wooden members, comprising:   The joining structure of wooden members according to claim 1, 2 or 3, wherein a depth of the counterbore corresponds to a half of a height of the high nut. A first columnar member and a second columnar member made of wood, each of which is provided with counterbored holes on the coupling end surfaces;
It has a wood screw part and a bolt part, the wood screw part is screwed into the center of each counterbore hole, the bolt part projects from the bottom surface of the counterbore hole, and the rotation directions of the screws are the same. A first hanger bolt and a second hanger bolt,
A high nut that has the same rotation direction as the first hanger bolt and the second hanger bolt and is screwed while accommodating both of the bolt portions, and is accommodated in both of the counterbore holes,
A method of joining wooden members using
The first hanger bolt is immersed in the first columnar member from the coupling end surface of the first columnar member by a distance longer than one pitch of the wood screw portion of the first hanger bolt and shorter than two pitches. Screw it in,
Screw the high nut onto the first hanger bolt until it hits the bottom surface of the counterbore,
The bolt portion of the second hanger bolt is temporarily screwed into the screwed high nut until it abuts against the first hanger bolt,
The second hanger bolt that is provisionally screwed is provided with an alignment mark at a position facing a specific side of the first columnar member,
Removing the second hanger bolt that is temporarily screwed in from the high nut,
The second hanger bolt is protruded from the second columnar member by a distance equal to or less than the one pitch from the coupling end face of the second columnar member, and the alignment mark faces the specific side. Screw it in,
The first columnar member, into which the first hanger bolt is screwed, and the high nut is screwed, and the second columnar member, into which the second hanger bolt is screwed, are connected until their connecting end surfaces abut against each other. A method for connecting wooden members, characterized by being screwed.   The method for connecting wooden members according to claim 5, wherein the depth of the counterbore corresponds to one half of the height of the high nut.