JP2014214542A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector used in various wooden structures including wooden buildings, capable of reducing shear load acting on inserted screw nails, and capable of suppressing concentration of the load on a specific screw nail.SOLUTION: A connector for connecting one material 41 and the other material 51 with each other consists of a base body 11 fixed to the one material 41, an intermediate 21 for connecting the base body 11 to the other material 51, screw nails 19 for fixing the base body 11 to the one material 41, and fasteners 27 for integrating the base body 11 with the intermediate 21. The base body 11 is provided with an inclined plane 13 having an intersection angle with the one material 41 and shaft holes 14 which extend from the inclined plan 13 and into which the screw nails 19 are inserted. The intermediate 21 has a crown 23 fitted over the base body 11 and connecting means 31 for mounting the other material 51. The crown 23 is provided with an adhesion surface 25 in contact with the heads of the screw nails 19.

Description

  The present invention relates to a connector that is used in various wooden structures including a wooden building and firmly integrates members.

  In wooden construction, a variety of timber is used, from structural materials such as pillars and beams to various interior materials, which are fixed in place with metal fittings or nails. A general metal fitting is arranged so as to straddle two members, and then bolts and nails are inserted from the metal fitting toward the wood, and these nails are inserted in a direction perpendicular to the surface of the member. However, for the purpose of preventing the nails from being pulled out, it may be inserted obliquely with respect to the member as in the following patent document.

  Patent Document 1 discloses a method for coupling and connecting structures. The present invention has been developed for attaching metal fittings to wood and the like, and fixing metal fittings such as angles using a dedicated connecting device. In this connecting device, a plurality of oblique holes having an angle of intersection with the surface of wood or the like are formed, and nails are driven from the oblique holes toward the wood or the like. The driven nails are arranged in an X shape or a C shape, and can strongly resist loads that pull apart the metal fittings.

  Patent Document 2 is an idea created by the inventor of Patent Document 1 and discloses an anchor fitting fixed to the surface of wood or the like. This anchor metal fitting is provided with a pair of left and right slope portions, and an inclined through hole is formed in order to drive a coupler such as a nail. The coupling tool driven into the inclined through hole has an X-shaped or C-shaped arrangement, and can strongly resist a load that pulls the anchor metal part apart. The literature discloses various shapes of anchor fittings such as T-shape and L-shape, and is assumed to be used everywhere.

JP-A-48-7148 Japanese Utility Model Publication No. 49-65013

  When a shearing load is applied to nails inserted into wood, the vicinity of the head is bent into the wood, causing the nails to loosen and causing various problems such as a decrease in rigidity at the connection between members. . Therefore, care should be taken not to apply excessive shear loads to nails used in wooden construction. However, in reality, it is often difficult to reduce the shear load due to constraints such as the placement of wood. For example, when fixing braces to a structural material such as a pillar, nails used there are often inserted at right angles to the surface of the structural material from the viewpoint of workability. As a result, an excessive shearing load acts on the nails, and a part of the nails may sink into the wood, resulting in a decrease in rigidity thereafter.

  As in Patent Document 2, when a plurality of couplers (nails) having different angles are driven in order to attach a single anchor bracket, depending on the direction of the load acting on the anchor bracket, a load is applied only to the specific coupler. It is also anticipated that the anchor fittings will loosen due to concentration and squeezing and disconnection of the coupler. Thus, when nails are driven obliquely with respect to the wood, it is preferable to take some measures so that the load does not concentrate only on specific nails.

  The present invention was developed on the basis of such circumstances, and can be used in various wooden structures such as wooden constructions to reduce the shear load acting on the inserted screw nail, and the load concentrates on a specific screw nail. The purpose is to provide a connector that can suppress this.

  Invention of Claim 1 for solving the said subject is a connection tool for connecting one material and the other material, Comprising: The base body fixed to the surface of the said one material, The said base body, and the said An intermediate body connecting between the other material, a screw nail for fixing the base body to the one material, and a fixture for integrating the base body and the intermediate body, An inclined surface having an angle of intersection with the surface of the one material, and a shaft hole extending in a direction perpendicular to the inclined surface and into which the screw nail can be inserted, wherein the intermediate body is located outside the base body. And a connecting means for attaching the other material, and the crown portion is provided with a contact surface that contacts the head of the screw nail inserted into the shaft hole. It is the coupling tool characterized by this.

  The present invention is intended to connect two members in various wooden structures including a wooden building, and is assumed to be used in various places. Therefore, one of the two members to be connected is referred to as one material, and the other is referred to as the other material. On the other hand, the material may be a bar material such as a pillar or a plate material, but the other material is a bar material. Further, the arrangement of the one material and the other material can be determined freely.

  The base body is a metal piece attached to the surface of one material, and is fixed to the one material by screw nails, and its bottom surface is finished to be flat so that it can contact the surface of the one material. In addition, the screw nail can have any length and cross-sectional diameter as long as a spiral male screw is formed on the side peripheral surface and a head for hanging a tool such as a screwdriver is placed on one end. The screw nails are not screwed in a direction perpendicular to the surface of the one material, but have a certain angle of intersection.

  The shaft hole is for inserting a screw nail and penetrates the front and back surfaces of the base body. This shaft hole gives an angle of intersection of about 15 to 60 degrees with respect to an axis projecting perpendicularly from the surface of the one material, and its inner diameter is such that other than the head of the screw nail can easily pass through. Next, the inclined surface is a smooth surface provided at the entrance of the shaft hole, is formed so as to be orthogonal to the direction of the shaft hole, and comes into contact with the head of the screw nail. Of course, the inclined surface is located on the opposite side of the contact surface between the base body and the one material. In addition, a plurality of shaft holes can be provided on one inclined surface.

  The inclined surface may be only one surface on one base body, but in many cases, two surfaces are formed symmetrically. In addition, when the inclined surfaces are arranged on the left and right, when the base body is viewed from the side, the inclined surface becomes a C shape or an inverted C shape, and the screw nails inserted into the shaft holes are made of one material. The arrangement is X-shaped or C-shaped inside. If the screw nails are arranged in an X shape, measures such as staggered shaft holes are taken in order to prevent contact between the screw nails inside the one material.

  The intermediate body plays a role of connecting the base body and the other material, and has one end provided with a crown portion that comes into contact with the base body, and the other end provided with connecting means that is integrated with the other material. The connection means refers to various structures that integrate the intermediate body and the other material. Specific examples include a plate that is inserted into the end of the other material, a bracket that is fixed to the end of the other material, and the like. Note that the connection means itself is the same as the prior art.

  The crown portion covers the outside of the base body and is integrated with the base body, and has a shape corresponding to an inclined surface or the like so that it can be in close contact with the base body without a gap. In addition, the outer side of a base body refers to the side which opposes one material among the whole surfaces of a base body. The crown is provided with a contact surface that presses the head of the screw nail inserted into the base body. The contact surface may be a simple flat surface as long as it can contact the head. However, when the head portion of the screw nail protrudes from the inclined surface, it is necessary to form a concave portion that accommodates the head portion in the crown portion, and the bottom of the concave portion serves as a close contact surface.

  The fixture is a unit that integrates the base body and the intermediate body, and usually uses bolts. In order to insert the bolt, a round hole is provided in the crown portion, and a female screw to be screwed with the bolt is provided in the base body. After fixing the base body to one material with screw nails, cover the crown part on the base body and insert the fixing tool from the crown part to the base body. In addition to integrating the base body and intermediate body, The head of the screw nail is pressed.

  In this way, by inserting the screw nail so as to have an angle of intersection with the surface of the one material, the direction of the load and the direction of the screw nail can be brought close to each other. The rate at which the tensile load acts increases. Since the screw nails are excellent in strength against tensile load and can disperse the load over a wide range of one material, the connection between the one material and the other material becomes stronger. Further, by pressing the head of the screw nail with the contact surface, the screw nail can also receive a load in the pressing direction. Therefore, even when the screw nail is inserted in a plurality of directions, it is possible to prevent the load from being concentrated on a specific screw nail, and trouble such as deformation of the screw nail does not occur.

  The invention described in claim 2 limits the relationship between the base body and the crown portion, and the crown portion covers the base body so as to straddle the plurality of base bodies. When members are actually connected, there are various restrictions such as the narrow width of one material, and there is a limit to the load that can be borne by only one base body. Therefore, as in the present invention, a plurality of base bodies are arranged, and the crown portion is shaped so as to straddle the plurality of base bodies, so that one intermediate body is supported by the plurality of base bodies and serves as a connecting tool. Can withstand more excessive loads.

  As in the first aspect of the present invention, the connecting member for connecting the two members is composed of a base body and an intermediate body, and the base body is provided with a shaft hole for inserting the screw nail in an oblique direction. In this case, the rate at which the tensile load acts instead of the shear load increases. Further, the screw nails are excellent in strength against a tensile load, and can distribute the load over a wide range of one material. For this reason, it is possible to avoid a situation in which the screw nail is bent by the excessive load and is sunk into the wood, and the rigidity of the connecting portion between the members is lowered.

  Furthermore, the screw nail can also receive a load in the pressing direction by pressing the head of the inserted screw nail with the contact surface of the intermediate body. Therefore, even when the screw nail is inserted in a plurality of directions, it is possible to prevent the load from being concentrated on the specific screw nail, and troubles such as loosening due to deformation of the screw nail do not occur.

  As in a second aspect of the present invention, a plurality of base bodies are arranged, and the crown portion is shaped so as to straddle the plurality of base bodies, so that one intermediate body is supported by the plurality of base bodies. . For this reason, the coupler can withstand an excessive load.

It is a perspective view which shows the example of a shape of the coupling tool by this invention, and its use condition. It is a perspective view which shows the process of connecting one material and the other material of FIG. It is the longitudinal cross-sectional view and side view of the state which connected the one material and other material of FIG. It is a perspective view which shows the shape of the coupling tool different from FIG. It is a perspective view which shows the state which connected one material and the other material of FIG. It is a perspective view which shows the coupling tool of a shape different from FIG.1 and FIG.4.

  FIG. 1 shows an example of the shape of a connector according to the present invention and how it is used. In this figure, in order to connect the one material 41 and the other material 51 that constitute the skeleton of the wooden building, a connector composed of the base body 11 and the intermediate body 21 is used. One material 41 is a vertically extending column, and the other material 51 is a brace that reinforces the column, and both are made of wood containing laminated material. Moreover, all the coupling tools are metal.

  The base body 11 has a thick plate shape and is fixed to the side surface of the one material 41 by the screw nails 19. Since the screw nail 19 is inserted in an oblique direction with respect to the side surface of the one material 41, the base body 11 is provided with an inclined surface 13 having a corner cut off at the upper and lower sides thereof. A shaft hole 14 for inserting a nail 19 is provided. In addition, the shaft holes 14 are arranged in a staggered manner in the vertical direction so that the inserted screw nails 19 do not come into contact with the inside of the one material 41, and there are three places on the upper side, but two places on the lower side.

  The screw nail 19 used here is a large-sized general-purpose wood screw, which is excellent in strength against tensile load and has a flat head. Further, a counterbore 15 for embedding the head portion of the screw nail 19 is formed at the entrance portion of the shaft hole 14 of the base body 11. Therefore, when the insertion of the screw nail 19 is finished, the head is aligned with the inclined surface 13 without a step.

  The intermediate body 21 connects the base body 11 and the other material 51, and is composed of two elements of a crown portion 23 and connection means 31 in this figure. The crown portion 23 covers the base body 11, and is provided with a contact surface 25 that contacts the head of the screw nail 19 inserted in addition to the inclined surface 13 of the base body 11. Further, the crown portion 23 and the base body 11 are integrated by the left and right fixing tools 27. The fixture 27 is a general-purpose bolt that is inserted from a round hole 24 provided in the crown portion 23 and screwed into the female screw 17 of the base body 11. At the time of construction, first, the base body 11 is fixed to the one material 41 with the screw nail 19, and then the crown portion 23 is placed so as to cover the base body 11, and the fixing tool 27 is inserted into the round hole 24. Screwed into the female screw 17.

  The connecting means 31 of the intermediate body 21 is a simple metal plate that is inserted into the slit 52 processed at the end of the other material 51. When the connecting means 31 is inserted into the slit 52 and the drift pin 37 is driven from the side surface of the other material 51, Both are integrated. In order to drive the drift pin 37, a total of four lateral holes 36 are provided on the surface of the connecting means 31. A side hole of the other material 51 is processed with a prepared hole 53 that is paired with the lateral hole 36. The lower hole 53 passes through the slit 52 and reaches the opposite surface.

  In order to integrate the crown portion 23 and the connecting means 31, two rows of clevises 26 protrude from the back surface of the crown portion 23. When the connecting means 31 is inserted between them and the fulcrum pin 34 is inserted so as to penetrate the connecting means 31, the clevis 26 and the connecting means 31 are swingably integrated via the fulcrum pin 34. Therefore, the intersection angle between the one material 41 and the other material 51 can be freely adjusted. In order to insert the fulcrum pin 34, a pin hole 28 is provided near the tip of the clevis 26, and a fulcrum hole 35 is provided near the tip of the connecting means 31.

  When the crown portion 23 is attached to the base body 11 using the fixing tool 27, the contact surface 25 contacts the head of the screw nail 19. Therefore, loosening of the screw nail 19 due to aging can be prevented, and the vertical load acting on the intermediate body 21 can also be received by the head of the screw nail 19. If a downward load acts on the intermediate body 21 and there is no contact surface 25, the load is received only by the two screw nails 19 inserted into the lower inclined surface 13. However, since the contact surface 25 functions, the load is received by the upper and lower five screw nails 19.

  FIG. 2 shows a process of connecting the one material 41 and the other material 51 of FIG. The connecting means 31 is inserted into the slit 52 of the other material 51, the drift pin 37 is driven from the side surface of the other material 51, the fulcrum pin 34 is inserted so as to penetrate the clevis 26 and the connecting means 31, and the other material 51 is inserted from the crown portion 23. Integrate up to. Further, a total of five screw nails 19 are inserted into the inclined surface 13 of the base body 11, and the base body 11 is fixed to the side surface of the one material 41. Thereafter, the crown portion 23 is covered on the outside of the base body 11, and then the fixture 27 is inserted into the round hole 24. When the fixture 27 is tightened, the base body 11 and the intermediate body 21 are integrated, and the one material 41 and the other material 51 are connected.

  FIG. 3 shows a longitudinal section and a side surface in a state where the one member 41 and the other member 51 of FIG. 1 are connected. The screw nails 19 are inserted from the upper and lower inclined surfaces 13 of the base body 11, and the screw nails 19 inserted in two directions are arranged in an X shape inside the one material 41. The head of the screw nail 19 is pressed against the contact surface 25 of the crown 23. Therefore, loosening of the screw nail 19 can be prevented, and a load can be applied in the direction in which the screw nail 19 is pressed through the contact surface 25.

  As depicted in the lower part of FIG. 3, the screw nail 19 inserted from below the base body 11 extends in substantially the same direction as the other material 51. Therefore, the tensile load that draws the other material 51 to the lower left of the figure is transmitted as it is to the screw nail 19 inserted below the base body 11. Since the screw nails 19 distribute the tensile load over a wide range of the one material 41, it is possible to avoid an excessive stress from acting around the base body 11.

  Thus, by making the direction of the screw nail 19 and the direction of the load coincide as much as possible, the shear load acting on the screw nail 19 is reduced, and the tensile load increases. Since the screw nail 19 is excellent in strength against a tensile load, the strength of the connection portion is inevitably improved.

  Next, the compressive load that pushes up the other material 51 to the upper right of the drawing presses the screw nail 19 inserted below the base body 11 by the contact surface of the crown portion 23. The compressive load is distributed over a wide range of the one material 41 by the screw nails 19, and the pressure on the contact surface between the base body 11 and the one material 41 is relieved. Therefore, it is possible to prevent the base body 11 from sinking into the one material 41 over time.

  FIG. 4 shows a connector different from FIG. In this figure, a vertically extending one material 41 and a horizontally extending other material 51 are connected, and two base bodies 11 are attached to the upper and lower sides of the one material 41, and the intermediate body 22 is The shape is such as to straddle the two base bodies 11. Each base body 11 is provided with inclined surfaces 13 on the top and bottom, three shaft holes 14 are formed on one side, and two shaft holes 14 are formed on the other side. A female screw 17 is formed at the location. The two base bodies 11 are arranged in a stepped portion 44 obtained by partially scraping the side surface of the one material 41 and fixed by the screw nails 19.

  The intermediate body 22 has a shape extending in the vertical direction so as to be in contact with the two base bodies 11, and is formed with two sets of upper and lower close contact surfaces 25 in contact with the heads of all screw nails 19. To do. Further, the round holes 24 for inserting the fixtures 27 are provided at a total of four locations corresponding to the female screws 17 of the base body 11. In addition, the connection means 32 is a plate shape that is inserted into the slit 52 of the other member 51, but is directly connected to the back surface of the crown portion 23, unlike that of FIG. 1. In addition to the lateral holes 36, lateral grooves 38 are also provided on the surface of the connecting means 32. The lateral groove 38 is used when the other material 51 is temporarily placed.

  The other material 51 and the connecting means 32 are integrated by a drift pin 37. Therefore, as in FIG. 1, the lower hole 53 is processed on the side surface of the other material 51. A drift pin 37 is previously driven into the uppermost one of the five rows of pilot holes 53 in advance. At the time of construction, the drift pin 37 is placed on the lateral groove 38 and the other material 51 is temporarily placed, and then the drift pin 37 is driven into the remaining lower hole 53 to fix the other material 51 completely.

  After the construction, a vertical load such as its own weight acts on the other material 51. This load is transmitted to the one material 41 via the screw nail 19, but the screw nail 19 is inserted in the oblique direction. For this reason, in addition to the shear load, a tensile load or a compressive load acts on the screw nail 19 according to the crossing angle. Since the screw nail 19 is excellent in strength against a load in the tension direction and the compression direction, the one material 41 and the other material 51 can be firmly connected.

  FIG. 5 shows a state where one material 41 and the other material 51 of FIG. 4 are connected. The other material 51 protrudes in the horizontal direction from the side surface of the one material 41, and a T-shaped connecting portion is formed. In addition, two base bodies 11 are fixed vertically on the stepped portion 44 processed on the side surface of the one material 41, and the crown portion 23 covers and covers the outside. The crown portion 23 is disposed so as to close the stepped portion 44, and the other material 51 is fixed to the intermediate body 22 by the connecting means 32 and the drift pin 37.

  FIG. 6 shows a connector having a shape different from those in FIGS. The base body 12 in this figure has a configuration in which the inclined surface 13 is opposite to each of the previous figures, and the thickness increases toward the side end. Further, since the screw nail 19 inserted into the one member 41 does not come into contact with other screw nails 19 inside, three shaft holes 14 are formed in any of the upper and lower inclined surfaces 13. On the other hand, the intermediate body 29 is shaped so as to be in surface contact with the base body 12, and the crown portion 23 has an increased thickness at the center. In addition, the point which integrates the base body 12 and the crown part 23 with the fixing tool 27 is not different from each figure so far.

  The connecting means 39 is T-shaped in contact with the end surface of the other material 51 and is fixed to the other material 51 with a locking nail 55. The connecting means 39 is fixed to the clevis 26 via the fulcrum pin 34. In addition, since the base body 12 does not form the counterbore 15 as shown in FIG. 1, the head of the screw nail 19 protrudes from the inclined surface 13. In order to accommodate this head, the crown 23 is provided with a circular cross-sectional recess, and its bottom serves as a contact surface 25 that contacts the head of the screw nail 19.

DESCRIPTION OF SYMBOLS 11 Base body 12 Base body 13 Inclined surface 14 Shaft hole 15 Counterbore 17 Female screw 19 Screw nail 21 Intermediate body 22 Intermediate body 23 Crown part 24 Round hole 25 Contact surface 26 Clevis 27 Fixing tool 28 Pin hole 29 Intermediate body 31 Connection means 32 Connection Means 34 Support pin 35 Support hole 36 Horizontal hole 37 Drift pin 38 Horizontal groove 39 Connection means 41 First material 44 Step 51 Other material 52 Slit 53 Lower hole 55 Locking nail

Claims (2)

A connector for connecting the one material (41) and the other material (51),
A base body (11 or 12) fixed to the surface of the one material (41);
An intermediate body (21 or 22 or 29) connecting the base body (11 or 12) and the other material (51);
A screw nail (19) for fixing the base body (11 or 12) to the one material (41);
A fixture (27) for integrating the base body (11 or 12) and the intermediate body (21 or 22 or 29);
Use
The base body (11 or 12) includes an inclined surface (13) having an angle of intersection with the surface of the one material (41), and extends from the inclined surface (13) in a direction perpendicular to the screw body (19). A shaft hole (14) into which can be inserted,
The intermediate body (21 or 22 or 29) includes a crown portion (23) covering the outside of the base body (11 or 12) and connection means (31, 32 or 39) for attaching the other material (51). ) And
The coupling part, wherein the crown (23) is provided with a close contact surface (25) that comes into contact with the head of the screw nail (19) inserted into the shaft hole (14).   The said crown part (23) covers the some said base body (11 or 12) so that it may straddle, The coupling tool of Claim 1 characterized by the above-mentioned.

Images